xp-dev.com Git - namibia/blob - public/scripts/ckeditor/_source/plugins/pastefromword/filter/default.js

   1 /*
   2 Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
   3 For licensing, see LICENSE.html or http://ckeditor.com/license
   4 */
   5
   6 (function()
   7 {
   8         var fragmentPrototype = CKEDITOR.htmlParser.fragment.prototype,
   9                 elementPrototype = CKEDITOR.htmlParser.element.prototype;
  10
  11         fragmentPrototype.onlyChild = elementPrototype.onlyChild = function()
  12         {
  13                 var children = this.children,
  14                         count = children.length,
  15                         firstChild = ( count == 1 ) && children[ 0 ];
  16                 return firstChild || null;
  17         };
  18
  19         elementPrototype.removeAnyChildWithName = function( tagName )
  20         {
  21                 var children = this.children,
  22                         childs = [],
  23                         child;
  24
  25                 for ( var i = 0; i < children.length; i++ )
  26                 {
  27                         child = children[ i ];
  28                         if ( !child.name )
  29                                 continue;
  30
  31                         if ( child.name == tagName )
  32                         {
  33                                 childs.push( child );
  34                                 children.splice( i--, 1 );
  35                         }
  36                         childs = childs.concat( child.removeAnyChildWithName( tagName ) );
  37                 }
  38                 return childs;
  39         };
  40
  41         elementPrototype.getAncestor = function( tagNameRegex )
  42         {
  43                 var parent = this.parent;
  44                 while ( parent && !( parent.name && parent.name.match( tagNameRegex ) ) )
  45                         parent = parent.parent;
  46                 return parent;
  47         };
  48
  49         fragmentPrototype.firstChild = elementPrototype.firstChild = function( evaluator )
  50         {
  51                 var child;
  52
  53                 for ( var i = 0 ; i < this.children.length ; i++ )
  54                 {
  55                         child = this.children[ i ];
  56                         if ( evaluator( child ) )
  57                                 return child;
  58                         else if ( child.name )
  59                         {
  60                                 child = child.firstChild( evaluator );
  61                                 if ( child )
  62                                         return child;
  63                         }
  64                 }
  65
  66                 return null;
  67         };
  68
  69         // Adding a (set) of styles to the element's 'style' attributes.
  70         elementPrototype.addStyle = function( name, value, isPrepend )
  71         {
  72                 var styleText, addingStyleText = '';
  73                 // name/value pair.
  74                 if ( typeof value == 'string' )
  75                         addingStyleText += name + ':' + value + ';';
  76                 else
  77                 {
  78                         // style literal.
  79                         if ( typeof name == 'object' )
  80                         {
  81                                 for ( var style in name )
  82                                 {
  83                                         if ( name.hasOwnProperty( style ) )
  84                                                 addingStyleText += style + ':' + name[ style ] + ';';
  85                                 }
  86                         }
  87                         // raw style text form.
  88                         else
  89                                 addingStyleText += name;
  90
  91                         isPrepend = value;
  92                 }
  93
  94                 if ( !this.attributes )
  95                         this.attributes = {};
  96
  97                 styleText = this.attributes.style || '';
  98
  99                 styleText = ( isPrepend ?
 100                               [ addingStyleText, styleText ]
 101                                           : [ styleText, addingStyleText ] ).join( ';' );
 102
 103                 this.attributes.style = styleText.replace( /^;|;(?=;)/, '' );
 104         };
 105
 106         /**
 107          * Return the DTD-valid parent tag names of the specified one.
 108          * @param tagName
 109          */
 110         CKEDITOR.dtd.parentOf = function( tagName )
 111         {
 112                 var result = {};
 113                 for ( var tag in this )
 114                 {
 115                         if ( tag.indexOf( '$' ) == -1 && this[ tag ][ tagName ] )
 116                                 result[ tag ] = 1;
 117                 }
 118                 return result;
 119         };
 120
 121         // 1. move consistent list item styles up to list root.
 122         // 2. clear out unnecessary list item numbering.
 123         function postProcessList( list )
 124         {
 125                 var children = list.children,
 126                         child,
 127                         attrs,
 128                         count = list.children.length,
 129                         match,
 130                         mergeStyle,
 131                         styleTypeRegexp = /list-style-type:(.*?)(?:;|$)/,
 132                         stylesFilter = CKEDITOR.plugins.pastefromword.filters.stylesFilter;
 133
 134                 attrs = list.attributes;
 135                 if ( styleTypeRegexp.exec( attrs.style ) )
 136                         return;
 137
 138                 for ( var i = 0; i < count; i++ )
 139                 {
 140                         child = children[ i ];
 141
 142                         if ( child.attributes.value && Number( child.attributes.value ) == i + 1 )
 143                                 delete child.attributes.value;
 144
 145                         match = styleTypeRegexp.exec( child.attributes.style );
 146
 147                         if ( match )
 148                         {
 149                                 if ( match[ 1 ] == mergeStyle || !mergeStyle )
 150                                         mergeStyle = match[ 1 ];
 151                                 else
 152                                 {
 153                                         mergeStyle = null;
 154                                         break;
 155                                 }
 156                         }
 157                 }
 158
 159                 if ( mergeStyle )
 160                 {
 161                         for ( i = 0; i < count; i++ )
 162                         {
 163                                 attrs = children[ i ].attributes;
 164                                 attrs.style && ( attrs.style = stylesFilter( [ [ 'list-style-type'] ] )( attrs.style ) || '' );
 165                         }
 166
 167                         list.addStyle( 'list-style-type', mergeStyle );
 168                 }
 169         }
 170
 171         var cssLengthRelativeUnit = /^([.\d]*)+(em|ex|px|gd|rem|vw|vh|vm|ch|mm|cm|in|pt|pc|deg|rad|ms|s|hz|khz){1}?/i;
 172         var emptyMarginRegex = /^(?:\b0[^\s]*\s*){1,4}$/;               // e.g. 0px 0pt 0px
 173         var romanLiternalPattern = '^m{0,4}(cm|cd|d?c{0,3})(xc|xl|l?x{0,3})(ix|iv|v?i{0,3})$',
 174                 lowerRomanLiteralRegex = new RegExp( romanLiternalPattern ),
 175                 upperRomanLiteralRegex = new RegExp( romanLiternalPattern.toUpperCase() );
 176
 177         var orderedPatterns = { 'decimal' : /\d+/, 'lower-roman': lowerRomanLiteralRegex, 'upper-roman': upperRomanLiteralRegex, 'lower-alpha' : /^[a-z]+$/, 'upper-alpha': /^[A-Z]+$/ },
 178                 unorderedPatterns = { 'disc' : /[l\u00B7\u2002]/, 'circle' : /[\u006F\u00D8]/,'square' : /[\u006E\u25C6]/},
 179                 listMarkerPatterns = { 'ol' : orderedPatterns, 'ul' : unorderedPatterns },
 180                 romans = [ [1000, 'M'], [900, 'CM'], [500, 'D'], [400, 'CD'], [100, 'C'], [90, 'XC'], [50, 'L'], [40, 'XL'], [10, 'X'], [9, 'IX'], [5, 'V'], [4, 'IV'], [1, 'I'] ],
 181                 alpahbets = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 182
 183         // Convert roman numbering back to decimal.
 184         function fromRoman( str )
 185          {
 186                  str = str.toUpperCase();
 187                  var l = romans.length, retVal = 0;
 188                  for ( var i = 0; i < l; ++i )
 189                  {
 190                          for ( var j = romans[i], k = j[1].length; str.substr( 0, k ) == j[1]; str = str.substr( k ) )
 191                                  retVal += j[ 0 ];
 192                  }
 193                  return retVal;
 194          }
 195
 196         // Convert alphabet numbering back to decimal.
 197         function fromAlphabet( str )
 198         {
 199                 str = str.toUpperCase();
 200                 var l = alpahbets.length, retVal = 1;
 201                 for ( var x = 1; str.length > 0; x *= l )
 202                 {
 203                         retVal += alpahbets.indexOf( str.charAt( str.length - 1 ) ) * x;
 204                         str = str.substr( 0, str.length - 1 );
 205                 }
 206                 return retVal;
 207         }
 208
 209         var listBaseIndent = 0,
 210                 previousListItemMargin = null,
 211                 previousListId;
 212
 213         var plugin = ( CKEDITOR.plugins.pastefromword =
 214         {
 215                 utils :
 216                 {
 217                         // Create a <cke:listbullet> which indicate an list item type.
 218                         createListBulletMarker : function ( bullet, bulletText )
 219                         {
 220                                 var marker = new CKEDITOR.htmlParser.element( 'cke:listbullet' );
 221                                 marker.attributes = { 'cke:listsymbol' : bullet[ 0 ] };
 222                                 marker.add( new CKEDITOR.htmlParser.text( bulletText ) );
 223                                 return marker;
 224                         },
 225
 226                         isListBulletIndicator : function( element )
 227                         {
 228                                 var styleText = element.attributes && element.attributes.style;
 229                                 if ( /mso-list\s*:\s*Ignore/i.test( styleText ) )
 230                                         return true;
 231                         },
 232
 233                         isContainingOnlySpaces : function( element )
 234                         {
 235                                 var text;
 236                                 return ( ( text = element.onlyChild() )
 237                                             && ( /^(:?\s|&nbsp;)+$/ ).test( text.value ) );
 238                         },
 239
 240                         resolveList : function( element )
 241                         {
 242                                 // <cke:listbullet> indicate a list item.
 243                                 var attrs = element.attributes,
 244                                         listMarker;
 245
 246                                 if ( ( listMarker = element.removeAnyChildWithName( 'cke:listbullet' ) )
 247                                                 && listMarker.length
 248                                                 && ( listMarker = listMarker[ 0 ] ) )
 249                                 {
 250                                         element.name = 'cke:li';
 251
 252                                         if ( attrs.style )
 253                                         {
 254                                                 attrs.style = plugin.filters.stylesFilter(
 255                                                                 [
 256                                                                         // Text-indent is not representing list item level any more.
 257                                                                         [ 'text-indent' ],
 258                                                                         [ 'line-height' ],
 259                                                                         // First attempt is to resolve indent level from on a constant margin increment.
 260                                                                         [ ( /^margin(:?-left)?$/ ), null, function( margin )
 261                                                                         {
 262                                                                                 // Deal with component/short-hand form.
 263                                                                                 var values = margin.split( ' ' );
 264                                                                                 margin = CKEDITOR.tools.convertToPx( values[ 3 ] || values[ 1 ] || values [ 0 ] );
 265
 266                                                                                 // Figure out the indent unit by checking the first time of incrementation.
 267                                                                                 if ( !listBaseIndent && previousListItemMargin !== null && margin > previousListItemMargin )
 268                                                                                         listBaseIndent = margin - previousListItemMargin;
 269
 270                                                                                 previousListItemMargin = margin;
 271
 272                                                                                 attrs[ 'cke:indent' ] = listBaseIndent && ( Math.ceil( margin / listBaseIndent ) + 1 ) || 1;
 273                                                                         } ],
 274                                                                         // The best situation: "mso-list:l0 level1 lfo2" tells the belonged list root, list item indentation, etc.
 275                                                                         [ ( /^mso-list$/ ), null, function( val )
 276                                                                         {
 277                                                                                 val = val.split( ' ' );
 278                                                                                 var listId = Number( val[ 0 ].match( /\d+/ ) ),
 279                                                                                         indent = Number( val[ 1 ].match( /\d+/ ) );
 280
 281                                                                                 if ( indent == 1 )
 282                                                                                 {
 283                                                                                         listId !== previousListId && ( attrs[ 'cke:reset' ] = 1 );
 284                                                                                         previousListId = listId;
 285                                                                                 }
 286                                                                                 attrs[ 'cke:indent' ] = indent;
 287                                                                         } ]
 288                                                                 ] )( attrs.style, element ) || '';
 289                                         }
 290
 291                                         // First level list item might be presented without a margin.
 292
 293
 294                                         // In case all above doesn't apply.
 295                                         if ( !attrs[ 'cke:indent' ] )
 296                                         {
 297                                                 previousListItemMargin = 0;
 298                                                 attrs[ 'cke:indent' ] = 1;
 299                                         }
 300
 301                                         // Inherit attributes from bullet.
 302                                         CKEDITOR.tools.extend( attrs, listMarker.attributes );
 303                                         return true;
 304                                 }
 305                                 // Current list disconnected.
 306                                 else
 307                                         previousListId = previousListItemMargin = listBaseIndent = null;
 308
 309                                 return false;
 310                         },
 311
 312                         // Providing a shorthand style then retrieve one or more style component values.
 313                         getStyleComponents : ( function()
 314                         {
 315                                 var calculator = CKEDITOR.dom.element.createFromHtml(
 316                                                                 '<div style="position:absolute;left:-9999px;top:-9999px;"></div>',
 317                                                                 CKEDITOR.document );
 318                                 CKEDITOR.document.getBody().append( calculator );
 319
 320                                 return function( name, styleValue, fetchList )
 321                                 {
 322                                         calculator.setStyle( name, styleValue );
 323                                         var styles = {},
 324                                                 count = fetchList.length;
 325                                         for ( var i = 0; i < count; i++ )
 326                                                 styles[ fetchList[ i ] ]  = calculator.getStyle( fetchList[ i ] );
 327
 328                                         return styles;
 329                                 };
 330                         } )(),
 331
 332                         listDtdParents : CKEDITOR.dtd.parentOf( 'ol' )
 333                 },
 334
 335                 filters :
 336                 {
 337                                 // Transform a normal list into flat list items only presentation.
 338                                 // E.g. <ul><li>level1<ol><li>level2</li></ol></li> =>
 339                                 // <cke:li cke:listtype="ul" cke:indent="1">level1</cke:li>
 340                                 // <cke:li cke:listtype="ol" cke:indent="2">level2</cke:li>
 341                                 flattenList : function( element, level )
 342                                 {
 343                                         level = typeof level == 'number' ? level : 1;
 344
 345                                         var     attrs = element.attributes,
 346                                                 listStyleType;
 347
 348                                         // All list items are of the same type.
 349                                         switch ( attrs.type )
 350                                         {
 351                                                 case 'a' :
 352                                                         listStyleType = 'lower-alpha';
 353                                                         break;
 354                                                 case '1' :
 355                                                         listStyleType = 'decimal';
 356                                                         break;
 357                                                 // TODO: Support more list style type from MS-Word.
 358                                         }
 359
 360                                         var children = element.children,
 361                                                 child;
 362
 363                                         for ( var i = 0; i < children.length; i++ )
 364                                         {
 365                                                 child = children[ i ];
 366
 367                                                 if ( child.name in CKEDITOR.dtd.$listItem )
 368                                                 {
 369                                                         var attributes = child.attributes,
 370                                                                 listItemChildren = child.children,
 371                                                                 count = listItemChildren.length,
 372                                                                 last = listItemChildren[ count - 1 ];
 373
 374                                                         // Move out nested list.
 375                                                         if ( last.name in CKEDITOR.dtd.$list )
 376                                                         {
 377                                                                 element.add( last, i + 1 );
 378
 379                                                                 // Remove the parent list item if it's just a holder.
 380                                                                 if ( !--listItemChildren.length )
 381                                                                         children.splice( i--, 1 );
 382                                                         }
 383
 384                                                         child.name = 'cke:li';
 385
 386                                                         // Inherit numbering from list root on the first list item.
 387                                                         attrs.start && !i && ( attributes.value = attrs.start );
 388
 389                                                         plugin.filters.stylesFilter(
 390                                                                 [
 391                                                                         [ 'tab-stops', null, function( val )
 392                                                                         {
 393                                                                                 var margin = val.split( ' ' )[ 1 ].match( cssLengthRelativeUnit );
 394                                                                                 margin && ( previousListItemMargin = CKEDITOR.tools.convertToPx( margin[ 0 ] ) );
 395                                                                         } ],
 396                                                                         ( level == 1 ? [ 'mso-list', null, function( val )
 397                                                                         {
 398                                                                                 val = val.split( ' ' );
 399                                                                                 var listId = Number( val[ 0 ].match( /\d+/ ) );
 400                                                                                 listId !== previousListId && ( attributes[ 'cke:reset' ] = 1 );
 401                                                                                 previousListId = listId;
 402                                                                          } ] : null )
 403                                                                 ] )( attributes.style );
 404
 405                                                         attributes[ 'cke:indent' ] = level;
 406                                                         attributes[ 'cke:listtype' ] = element.name;
 407                                                         attributes[ 'cke:list-style-type' ] = listStyleType;
 408                                                 }
 409                                                 // Flatten sub list.
 410                                                 else if ( child.name in CKEDITOR.dtd.$list )
 411                                                 {
 412                                                         // Absorb sub list children.
 413                                                         arguments.callee.apply( this, [ child, level + 1 ] );
 414                                                         children = children.slice( 0, i ).concat( child.children ).concat( children.slice( i + 1 ) );
 415                                                         element.children = [];
 416                                                         for ( var j = 0, num = children.length; j < num ; j++ )
 417                                                                 element.add( children[ j ] );
 418                                                 }
 419                                         }
 420
 421                                         delete element.name;
 422
 423                                         // We're loosing tag name here, signalize this element as a list.
 424                                         attrs[ 'cke:list' ] = 1;
 425                                 },
 426
 427                                 /**
 428                                  *  Try to collect all list items among the children and establish one
 429                                  *  or more HTML list structures for them.
 430                                  * @param element
 431                                  */
 432                                 assembleList : function( element )
 433                                 {
 434                                         var children = element.children, child,
 435                                                         listItem,   // The current processing cke:li element.
 436                                                         listItemAttrs,
 437                                                         listItemIndent, // Indent level of current list item.
 438                                                         lastIndent,
 439                                                         lastListItem, // The previous one just been added to the list.
 440                                                         list, // Current staging list and it's parent list if any.
 441                                                         openedLists = [],
 442                                                         previousListStyleType,
 443                                                         previousListType;
 444
 445                                         // Properties of the list item are to be resolved from the list bullet.
 446                                         var bullet,
 447                                                 listType,
 448                                                 listStyleType,
 449                                                 itemNumeric;
 450
 451                                         for ( var i = 0; i < children.length; i++ )
 452                                         {
 453                                                 child = children[ i ];
 454
 455                                                 if ( 'cke:li' == child.name )
 456                                                 {
 457                                                         child.name = 'li';
 458                                                         listItem = child;
 459                                                         listItemAttrs = listItem.attributes;
 460                                                         bullet = listItemAttrs[ 'cke:listsymbol' ];
 461                                                         bullet = bullet && bullet.match( /^(?:[(]?)([^\s]+?)([.)]?)$/ );
 462                                                         listType = listStyleType = itemNumeric = null;
 463
 464                                                         if ( listItemAttrs[ 'cke:ignored' ] )
 465                                                         {
 466                                                                 children.splice( i--, 1 );
 467                                                                 continue;
 468                                                         }
 469
 470
 471                                                         // This's from a new list root.
 472                                                         listItemAttrs[ 'cke:reset' ] && ( list = lastIndent = lastListItem = null );
 473
 474                                                         // List item indent level might come from a real list indentation or
 475                                                         // been resolved from a pseudo list item's margin value, even get
 476                                                         // no indentation at all.
 477                                                         listItemIndent = Number( listItemAttrs[ 'cke:indent' ] );
 478
 479                                                         // We're moving out of the current list, cleaning up.
 480                                                         if ( listItemIndent != lastIndent )
 481                                                                 previousListType = previousListStyleType = null;
 482
 483                                                         // List type and item style are already resolved.
 484                                                         if ( !bullet )
 485                                                         {
 486                                                                 listType = listItemAttrs[ 'cke:listtype' ] || 'ol';
 487                                                                 listStyleType = listItemAttrs[ 'cke:list-style-type' ];
 488                                                         }
 489                                                         else
 490                                                         {
 491                                                                 // Probably share the same list style type with previous list item,
 492                                                                 // give it priority to avoid ambiguous between C(Alpha) and C.(Roman).
 493                                                                 if ( previousListType && listMarkerPatterns[ previousListType ] [ previousListStyleType ].test( bullet[ 1 ] ) )
 494                                                                 {
 495                                                                         listType = previousListType;
 496                                                                         listStyleType = previousListStyleType;
 497                                                                 }
 498                                                                 else
 499                                                                 {
 500                                                                         for ( var type in listMarkerPatterns )
 501                                                                         {
 502                                                                                 for ( var style in listMarkerPatterns[ type ] )
 503                                                                                 {
 504                                                                                         if ( listMarkerPatterns[ type ][ style ].test( bullet[ 1 ] ) )
 505                                                                                         {
 506                                                                                                 // Small numbering has higher priority, when dealing with ambiguous
 507                                                                                                 // between C(Alpha) and C.(Roman).
 508                                                                                                 if ( type == 'ol' && ( /alpha|roman/ ).test( style ) )
 509                                                                                                 {
 510                                                                                                         var num = /roman/.test( style ) ? fromRoman( bullet[ 1 ] ) : fromAlphabet( bullet[ 1 ] );
 511                                                                                                         if ( !itemNumeric || num < itemNumeric )
 512                                                                                                         {
 513                                                                                                                 itemNumeric = num;
 514                                                                                                                 listType = type;
 515                                                                                                                 listStyleType = style;
 516                                                                                                         }
 517                                                                                                 }
 518                                                                                                 else
 519                                                                                                 {
 520                                                                                                         listType = type;
 521                                                                                                         listStyleType = style;
 522                                                                                                         break;
 523                                                                                                 }
 524                                                                                         }
 525                                                                                 }
 526                                                                         }
 527                                                                 }
 528
 529                                                                 // Simply use decimal/disc for the rest forms of unrepresentable
 530                                                                 // numerals, e.g. Chinese..., but as long as there a second part
 531                                                                 // included, it has a bigger chance of being a order list ;)
 532                                                                 !listType && ( listType = bullet[ 2 ] ? 'ol' : 'ul' );
 533                                                         }
 534
 535                                                         previousListType = listType;
 536                                                         previousListStyleType = listStyleType || ( listType == 'ol' ? 'decimal' : 'disc' );
 537                                                         if ( listStyleType && listStyleType != ( listType == 'ol' ? 'decimal' : 'disc' ) )
 538                                                                 listItem.addStyle( 'list-style-type', listStyleType );
 539
 540                                                         // Figure out start numbering.
 541                                                         if ( listType == 'ol' && bullet )
 542                                                         {
 543                                                                 switch ( listStyleType )
 544                                                                 {
 545                                                                         case 'decimal' :
 546                                                                                 itemNumeric = Number( bullet[ 1 ] );
 547                                                                                 break;
 548                                                                         case 'lower-roman':
 549                                                                         case 'upper-roman':
 550                                                                                 itemNumeric = fromRoman( bullet[ 1 ] );
 551                                                                                 break;
 552                                                                         case 'lower-alpha':
 553                                                                         case 'upper-alpha':
 554                                                                                 itemNumeric = fromAlphabet( bullet[ 1 ] );
 555                                                                                 break;
 556                                                                 }
 557
 558                                                                 // Always create the numbering, swipe out unnecessary ones later.
 559                                                                 listItem.attributes.value = itemNumeric;
 560                                                         }
 561
 562                                                         // Start the list construction.
 563                                                         if ( !list )
 564                                                         {
 565                                                                 openedLists.push( list = new CKEDITOR.htmlParser.element( listType ) );
 566                                                                 list.add( listItem );
 567                                                                 children[ i ] = list;
 568                                                         }
 569                                                         else
 570                                                         {
 571                                                                 if ( listItemIndent > lastIndent )
 572                                                                 {
 573                                                                         openedLists.push( list = new CKEDITOR.htmlParser.element( listType ) );
 574                                                                         list.add( listItem );
 575                                                                         lastListItem.add( list );
 576                                                                 }
 577                                                                 else if ( listItemIndent < lastIndent )
 578                                                                 {
 579                                                                         // There might be a negative gap between two list levels. (#4944)
 580                                                                         var diff = lastIndent - listItemIndent,
 581                                                                                         parent;
 582                                                                         while ( diff-- && ( parent = list.parent ) )
 583                                                                                 list = parent.parent;
 584
 585                                                                         list.add( listItem );
 586                                                                 }
 587                                                                 else
 588                                                                         list.add( listItem );
 589
 590                                                                 children.splice( i--, 1 );
 591                                                         }
 592
 593                                                         lastListItem = listItem;
 594                                                         lastIndent = listItemIndent;
 595                                                 }
 596                                                 else if ( list )
 597                                                         list = lastIndent = lastListItem = null;
 598                                         }
 599
 600                                         for ( i = 0; i < openedLists.length; i++ )
 601                                                 postProcessList( openedLists[ i ] );
 602
 603                                         list = lastIndent = lastListItem = previousListId = previousListItemMargin = listBaseIndent = null;
 604                                 },
 605
 606                                 /**
 607                                  * A simple filter which always rejecting.
 608                                  */
 609                                 falsyFilter : function( value )
 610                                 {
 611                                         return false;
 612                                 },
 613
 614                                 /**
 615                                  * A filter dedicated on the 'style' attribute filtering, e.g. dropping/replacing style properties.
 616                                  * @param styles {Array} in form of [ styleNameRegexp, styleValueRegexp,
 617                                  *  newStyleValue/newStyleGenerator, newStyleName ] where only the first
 618                                  *  parameter is mandatory.
 619                                  * @param whitelist {Boolean} Whether the {@param styles} will be considered as a white-list.
 620                                  */
 621                                 stylesFilter : function( styles, whitelist )
 622                                 {
 623                                         return function( styleText, element )
 624                                         {
 625                                                  var rules = [];
 626                                                 // html-encoded quote might be introduced by 'font-family'
 627                                                 // from MS-Word which confused the following regexp. e.g.
 628                                                 //'font-family: &quot;Lucida, Console&quot;'
 629                                                 ( styleText || '' )
 630                                                         .replace( /&quot;/g, '"' )
 631                                                         .replace( /\s*([^ :;]+)\s*:\s*([^;]+)\s*(?=;|$)/g,
 632                                                                  function( match, name, value )
 633                                                                  {
 634                                                                          name = name.toLowerCase();
 635                                                                          name == 'font-family' && ( value = value.replace( /["']/g, '' ) );
 636
 637                                                                          var namePattern,
 638                                                                                  valuePattern,
 639                                                                                  newValue,
 640                                                                                  newName;
 641                                                                          for ( var i = 0 ; i < styles.length; i++ )
 642                                                                          {
 643                                                                                 if ( styles[ i ] )
 644                                                                                 {
 645                                                                                         namePattern = styles[ i ][ 0 ];
 646                                                                                         valuePattern = styles[ i ][ 1 ];
 647                                                                                         newValue = styles[ i ][ 2 ];
 648                                                                                         newName = styles[ i ][ 3 ];
 649
 650                                                                                         if ( name.match( namePattern )
 651                                                                                                  && ( !valuePattern || value.match( valuePattern ) ) )
 652                                                                                         {
 653                                                                                                 name = newName || name;
 654                                                                                                 whitelist && ( newValue = newValue || value );
 655
 656                                                                                                 if ( typeof newValue == 'function' )
 657                                                                                                         newValue = newValue( value, element, name );
 658
 659                                                                                                 // Return an couple indicate both name and value
 660                                                                                                 // changed.
 661                                                                                                 if ( newValue && newValue.push )
 662                                                                                                         name = newValue[ 0 ], newValue = newValue[ 1 ];
 663
 664                                                                                                 if ( typeof newValue == 'string' )
 665                                                                                                         rules.push( [ name, newValue ] );
 666                                                                                                 return;
 667                                                                                         }
 668                                                                                 }
 669                                                                          }
 670
 671                                                                          !whitelist && rules.push( [ name, value ] );
 672
 673                                                                  });
 674
 675                                                 for ( var i = 0 ; i < rules.length ; i++ )
 676                                                          rules[ i ] = rules[ i ].join( ':' );
 677                                                 return rules.length ?
 678                                                          ( rules.join( ';' ) + ';' ) : false;
 679                                          };
 680                                 },
 681
 682                                 /**
 683                                  * Migrate the element by decorate styles on it.
 684                                  * @param styleDefiniton
 685                                  * @param variables
 686                                  */
 687                                 elementMigrateFilter : function ( styleDefiniton, variables )
 688                                 {
 689                                         return function( element )
 690                                                 {
 691                                                         var styleDef =
 692                                                                         variables ?
 693                                                                                 new CKEDITOR.style( styleDefiniton, variables )._.definition
 694                                                                                 : styleDefiniton;
 695                                                         element.name = styleDef.element;
 696                                                         CKEDITOR.tools.extend( element.attributes, CKEDITOR.tools.clone( styleDef.attributes ) );
 697                                                         element.addStyle( CKEDITOR.style.getStyleText( styleDef ) );
 698                                                 };
 699                                 },
 700
 701                                 /**
 702                                  * Migrate styles by creating a new nested stylish element.
 703                                  * @param styleDefinition
 704                                  */
 705                                 styleMigrateFilter : function( styleDefinition, variableName )
 706                                 {
 707
 708                                         var elementMigrateFilter = this.elementMigrateFilter;
 709                                         return function( value, element )
 710                                         {
 711                                                 // Build an stylish element first.
 712                                                 var styleElement = new CKEDITOR.htmlParser.element( null ),
 713                                                         variables = {};
 714
 715                                                 variables[ variableName ] = value;
 716                                                 elementMigrateFilter( styleDefinition, variables )( styleElement );
 717                                                 // Place the new element inside the existing span.
 718                                                 styleElement.children = element.children;
 719                                                 element.children = [ styleElement ];
 720                                         };
 721                                 },
 722
 723                                 /**
 724                                  * A filter which remove cke-namespaced-attribute on
 725                                  * all none-cke-namespaced elements.
 726                                  * @param value
 727                                  * @param element
 728                                  */
 729                                 bogusAttrFilter : function( value, element )
 730                                 {
 731                                         if ( element.name.indexOf( 'cke:' ) == -1 )
 732                                                 return false;
 733                                 },
 734
 735                                 /**
 736                                  * A filter which will be used to apply inline css style according the stylesheet
 737                                  * definition rules, is generated lazily when filtering.
 738                                  */
 739                                 applyStyleFilter : null
 740
 741                         },
 742
 743                 getRules : function( editor )
 744                 {
 745                         var dtd = CKEDITOR.dtd,
 746                                 blockLike = CKEDITOR.tools.extend( {}, dtd.$block, dtd.$listItem, dtd.$tableContent ),
 747                                 config = editor.config,
 748                                 filters = this.filters,
 749                                 falsyFilter = filters.falsyFilter,
 750                                 stylesFilter = filters.stylesFilter,
 751                                 elementMigrateFilter = filters.elementMigrateFilter,
 752                                 styleMigrateFilter = CKEDITOR.tools.bind( this.filters.styleMigrateFilter, this.filters ),
 753                                 createListBulletMarker = this.utils.createListBulletMarker,
 754                                 flattenList = filters.flattenList,
 755                                 assembleList = filters.assembleList,
 756                                 isListBulletIndicator = this.utils.isListBulletIndicator,
 757                                 containsNothingButSpaces = this.utils.isContainingOnlySpaces,
 758                                 resolveListItem = this.utils.resolveList,
 759                                 convertToPx = function( value )
 760                                         {
 761                                                 value = CKEDITOR.tools.convertToPx( value );
 762                                                 return isNaN( value ) ? value : value + 'px';
 763                                         },
 764                                 getStyleComponents = this.utils.getStyleComponents,
 765                                 listDtdParents = this.utils.listDtdParents,
 766                                 removeFontStyles = config.pasteFromWordRemoveFontStyles !== false,
 767                                 removeStyles = config.pasteFromWordRemoveStyles !== false;
 768
 769                         return {
 770
 771                                 elementNames :
 772                                 [
 773                                         // Remove script, meta and link elements.
 774                                         [ ( /meta|link|script/ ), '' ]
 775                                 ],
 776
 777                                 root : function( element )
 778                                 {
 779                                         element.filterChildren();
 780                                         assembleList( element );
 781                                 },
 782
 783                                 elements :
 784                                 {
 785                                         '^' : function( element )
 786                                         {
 787                                                 // Transform CSS style declaration to inline style.
 788                                                 var applyStyleFilter;
 789                                                 if ( CKEDITOR.env.gecko && ( applyStyleFilter = filters.applyStyleFilter ) )
 790                                                         applyStyleFilter( element );
 791                                         },
 792
 793                                         $ : function( element )
 794                                         {
 795                                                 var tagName = element.name || '',
 796                                                         attrs = element.attributes;
 797
 798                                                 // Convert length unit of width/height on blocks to
 799                                                 // a more editor-friendly way (px).
 800                                                 if ( tagName in blockLike
 801                                                         && attrs.style )
 802                                                 {
 803                                                         attrs.style = stylesFilter(
 804                                                                                 [ [ ( /^(:?width|height)$/ ), null, convertToPx ] ] )( attrs.style ) || '';
 805                                                 }
 806
 807                                                 // Processing headings.
 808                                                 if ( tagName.match( /h\d/ ) )
 809                                                 {
 810                                                         element.filterChildren();
 811                                                         // Is the heading actually a list item?
 812                                                         if ( resolveListItem( element ) )
 813                                                                 return;
 814
 815                                                         // Adapt heading styles to editor's convention.
 816                                                         elementMigrateFilter( config[ 'format_' + tagName ] )( element );
 817                                                 }
 818                                                 // Remove inline elements which contain only empty spaces.
 819                                                 else if ( tagName in dtd.$inline )
 820                                                 {
 821                                                         element.filterChildren();
 822                                                         if ( containsNothingButSpaces( element ) )
 823                                                                 delete element.name;
 824                                                 }
 825                                                 // Remove element with ms-office namespace,
 826                                                 // with it's content preserved, e.g. 'o:p'.
 827                                                 else if ( tagName.indexOf( ':' ) != -1
 828                                                                  && tagName.indexOf( 'cke' ) == -1 )
 829                                                 {
 830                                                         element.filterChildren();
 831
 832                                                         // Restore image real link from vml.
 833                                                         if ( tagName == 'v:imagedata' )
 834                                                         {
 835                                                                 var href = element.attributes[ 'o:href' ];
 836                                                                 if ( href )
 837                                                                         element.attributes.src = href;
 838                                                                 element.name = 'img';
 839                                                                 return;
 840                                                         }
 841                                                         delete element.name;
 842                                                 }
 843
 844                                                 // Assembling list items into a whole list.
 845                                                 if ( tagName in listDtdParents )
 846                                                 {
 847                                                         element.filterChildren();
 848                                                         assembleList( element );
 849                                                 }
 850                                         },
 851
 852                                         // We'll drop any style sheet, but Firefox conclude
 853                                         // certain styles in a single style element, which are
 854                                         // required to be changed into inline ones.
 855                                         'style' : function( element )
 856                                         {
 857                                                 if ( CKEDITOR.env.gecko )
 858                                                 {
 859                                                         // Grab only the style definition section.
 860                                                         var styleDefSection = element.onlyChild().value.match( /\/\* Style Definitions \*\/([\s\S]*?)\/\*/ ),
 861                                                                 styleDefText = styleDefSection && styleDefSection[ 1 ],
 862                                                                 rules = {}; // Storing the parsed result.
 863
 864                                                         if ( styleDefText )
 865                                                         {
 866                                                                 styleDefText
 867                                                                         // Remove line-breaks.
 868                                                                         .replace(/[\n\r]/g,'')
 869                                                                         // Extract selectors and style properties.
 870                                                                         .replace( /(.+?)\{(.+?)\}/g,
 871                                                                                 function( rule, selectors, styleBlock )
 872                                                                                 {
 873                                                                                         selectors = selectors.split( ',' );
 874                                                                                         var length = selectors.length, selector;
 875                                                                                         for ( var i = 0; i < length; i++ )
 876                                                                                         {
 877                                                                                                 // Assume MS-Word mostly generate only simple
 878                                                                                                 // selector( [Type selector][Class selector]).
 879                                                                                                 CKEDITOR.tools.trim( selectors[ i ] )
 880                                                                                                                           .replace( /^(\w+)(\.[\w-]+)?$/g,
 881                                                                                                 function( match, tagName, className )
 882                                                                                                 {
 883                                                                                                         tagName = tagName || '*';
 884                                                                                                         className = className.substring( 1, className.length );
 885
 886                                                                                                         // Reject MS-Word Normal styles.
 887                                                                                                         if ( className.match( /MsoNormal/ ) )
 888                                                                                                                 return;
 889
 890                                                                                                         if ( !rules[ tagName ] )
 891                                                                                                                 rules[ tagName ] = {};
 892                                                                                                         if ( className )
 893                                                                                                                 rules[ tagName ][ className ] = styleBlock;
 894                                                                                                         else
 895                                                                                                                 rules[ tagName ] = styleBlock;
 896                                                                                                 } );
 897                                                                                         }
 898                                                                                 });
 899
 900                                                                 filters.applyStyleFilter = function( element )
 901                                                                 {
 902                                                                         var name = rules[ '*' ] ? '*' : element.name,
 903                                                                                 className = element.attributes && element.attributes[ 'class' ],
 904                                                                                 style;
 905                                                                         if ( name in rules )
 906                                                                         {
 907                                                                                 style = rules[ name ];
 908                                                                                 if ( typeof style == 'object' )
 909                                                                                         style = style[ className ];
 910                                                                                 // Maintain style rules priorities.
 911                                                                                 style && element.addStyle( style, true );
 912                                                                         }
 913                                                                 };
 914                                                         }
 915                                                 }
 916                                                 return false;
 917                                         },
 918
 919                                         'p' : function( element )
 920                                         {
 921                                                 // This's a fall-back approach to recognize list item in FF3.6,
 922                                                 // as it's not perfect as not all list style (e.g. "heading list") is shipped
 923                                                 // with this pattern. (#6662)
 924                                                 if ( /MsoListParagraph/.exec( element.attributes[ 'class' ] ) )
 925                                                 {
 926                                                         var bulletText = element.firstChild( function( node )
 927                                                         {
 928                                                                 return node.type == CKEDITOR.NODE_TEXT && !containsNothingButSpaces( node.parent );
 929                                                         });
 930                                                         var bullet = bulletText && bulletText.parent,
 931                                                                 bulletAttrs = bullet && bullet.attributes;
 932                                                         bulletAttrs && !bulletAttrs.style && ( bulletAttrs.style = 'mso-list: Ignore;' );
 933                                                 }
 934
 935                                                 element.filterChildren();
 936
 937                                                 // Is the paragraph actually a list item?
 938                                                 if ( resolveListItem( element ) )
 939                                                         return;
 940
 941                                                 // Adapt paragraph formatting to editor's convention
 942                                                 // according to enter-mode.
 943                                                 if ( config.enterMode == CKEDITOR.ENTER_BR )
 944                                                 {
 945                                                         // We suffer from attribute/style lost in this situation.
 946                                                         delete element.name;
 947                                                         element.add( new CKEDITOR.htmlParser.element( 'br' ) );
 948                                                 }
 949                                                 else
 950                                                         elementMigrateFilter( config[ 'format_' + ( config.enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' ) ] )( element );
 951                                         },
 952
 953                                         'div' : function( element )
 954                                         {
 955                                                 // Aligned table with no text surrounded is represented by a wrapper div, from which
 956                                                 // table cells inherit as text-align styles, which is wrong.
 957                                                 // Instead we use a clear-float div after the table to properly achieve the same layout.
 958                                                 var singleChild = element.onlyChild();
 959                                                 if ( singleChild && singleChild.name == 'table' )
 960                                                 {
 961                                                         var attrs = element.attributes;
 962                                                         singleChild.attributes = CKEDITOR.tools.extend( singleChild.attributes, attrs );
 963                                                         attrs.style && singleChild.addStyle( attrs.style );
 964
 965                                                         var clearFloatDiv = new CKEDITOR.htmlParser.element( 'div' );
 966                                                         clearFloatDiv.addStyle( 'clear' ,'both' );
 967                                                         element.add( clearFloatDiv );
 968                                                         delete element.name;
 969                                                 }
 970                                         },
 971
 972                                         'td' : function ( element )
 973                                         {
 974                                                 // 'td' in 'thead' is actually <th>.
 975                                                 if ( element.getAncestor( 'thead') )
 976                                                         element.name = 'th';
 977                                         },
 978
 979                                         // MS-Word sometimes present list as a mixing of normal list
 980                                         // and pseudo-list, normalize the previous ones into pseudo form.
 981                                         'ol' : flattenList,
 982                                         'ul' : flattenList,
 983                                         'dl' : flattenList,
 984
 985                                         'font' : function( element )
 986                                         {
 987                                                 // Drop the font tag if it comes from list bullet text.
 988                                                 if ( isListBulletIndicator( element.parent ) )
 989                                                 {
 990                                                         delete element.name;
 991                                                         return;
 992                                                 }
 993
 994                                                 element.filterChildren();
 995
 996                                                 var attrs = element.attributes,
 997                                                         styleText = attrs.style,
 998                                                         parent = element.parent;
 999
1000                                                 if ( 'font' == parent.name )     // Merge nested <font> tags.
1001                                                 {
1002                                                         CKEDITOR.tools.extend( parent.attributes,
1003                                                                         element.attributes );
1004                                                         styleText && parent.addStyle( styleText );
1005                                                         delete element.name;
1006                                                 }
1007                                                 // Convert the merged into a span with all attributes preserved.
1008                                                 else
1009                                                 {
1010                                                         styleText = styleText || '';
1011                                                         // IE's having those deprecated attributes, normalize them.
1012                                                         if ( attrs.color )
1013                                                         {
1014                                                                 attrs.color != '#000000' && ( styleText += 'color:' + attrs.color + ';' );
1015                                                                 delete attrs.color;
1016                                                         }
1017                                                         if ( attrs.face )
1018                                                         {
1019                                                                 styleText += 'font-family:' + attrs.face + ';';
1020                                                                 delete attrs.face;
1021                                                         }
1022                                                         // TODO: Mapping size in ranges of xx-small,
1023                                                         // x-small, small, medium, large, x-large, xx-large.
1024                                                         if ( attrs.size )
1025                                                         {
1026                                                                 styleText += 'font-size:' +
1027                                                                              ( attrs.size > 3 ? 'large'
1028                                                                                              : ( attrs.size < 3 ? 'small' : 'medium' ) ) + ';';
1029                                                                 delete attrs.size;
1030                                                         }
1031
1032                                                         element.name = 'span';
1033                                                         element.addStyle( styleText );
1034                                                 }
1035                                         },
1036
1037                                         'span' : function( element )
1038                                         {
1039                                                 // Remove the span if it comes from list bullet text.
1040                                                 if ( isListBulletIndicator( element.parent ) )
1041                                                         return false;
1042
1043                                                 element.filterChildren();
1044                                                 if ( containsNothingButSpaces( element ) )
1045                                                 {
1046                                                         delete element.name;
1047                                                         return null;
1048                                                 }
1049
1050                                                 // List item bullet type is supposed to be indicated by
1051                                                 // the text of a span with style 'mso-list : Ignore' or an image.
1052                                                 if ( isListBulletIndicator( element ) )
1053                                                 {
1054                                                         var listSymbolNode = element.firstChild( function( node )
1055                                                         {
1056                                                                 return node.value || node.name == 'img';
1057                                                         });
1058
1059                                                         var listSymbol =  listSymbolNode && ( listSymbolNode.value || 'l.' ),
1060                                                                 listType = listSymbol && listSymbol.match( /^(?:[(]?)([^\s]+?)([.)]?)$/ );
1061
1062                                                         if ( listType )
1063                                                         {
1064                                                                 var marker = createListBulletMarker( listType, listSymbol );
1065                                                                 // Some non-existed list items might be carried by an inconsequential list, indicate by "mso-hide:all/display:none",
1066                                                                 // those are to be removed later, now mark it with "cke:ignored".
1067                                                                 var ancestor = element.getAncestor( 'span' );
1068                                                                 if ( ancestor && (/ mso-hide:\s*all|display:\s*none /).test( ancestor.attributes.style ) )
1069                                                                         marker.attributes[ 'cke:ignored' ] = 1;
1070                                                                 return marker;
1071                                                         }
1072                                                 }
1073
1074                                                 // Update the src attribute of image element with href.
1075                                                 var children = element.children,
1076                                                         attrs = element.attributes,
1077                                                         styleText = attrs && attrs.style,
1078                                                         firstChild = children && children[ 0 ];
1079
1080                                                 // Assume MS-Word mostly carry font related styles on <span>,
1081                                                 // adapting them to editor's convention.
1082                                                 if ( styleText )
1083                                                 {
1084                                                         attrs.style = stylesFilter(
1085                                                                         [
1086                                                                                 // Drop 'inline-height' style which make lines overlapping.
1087                                                                                 [ 'line-height' ],
1088                                                                                 [ ( /^font-family$/ ), null, !removeFontStyles ? styleMigrateFilter( config[ 'font_style' ], 'family' ) : null ] ,
1089                                                                                 [ ( /^font-size$/ ), null, !removeFontStyles ? styleMigrateFilter( config[ 'fontSize_style' ], 'size' ) : null ] ,
1090                                                                                 [ ( /^color$/ ), null, !removeFontStyles ? styleMigrateFilter( config[ 'colorButton_foreStyle' ], 'color' ) : null ] ,
1091                                                                                 [ ( /^background-color$/ ), null, !removeFontStyles ? styleMigrateFilter( config[ 'colorButton_backStyle' ], 'color' ) : null ]
1092                                                                         ] )( styleText, element ) || '';
1093                                                 }
1094
1095                                                 return null;
1096                                         },
1097
1098                                         // Migrate basic style formats to editor configured ones.
1099                                         'b' : elementMigrateFilter( config[ 'coreStyles_bold' ] ),
1100                                         'i' : elementMigrateFilter( config[ 'coreStyles_italic' ] ),
1101                                         'u' : elementMigrateFilter( config[ 'coreStyles_underline' ] ),
1102                                         's' : elementMigrateFilter( config[ 'coreStyles_strike' ] ),
1103                                         'sup' : elementMigrateFilter( config[ 'coreStyles_superscript' ] ),
1104                                         'sub' : elementMigrateFilter( config[ 'coreStyles_subscript' ] ),
1105                                         // Editor doesn't support anchor with content currently (#3582),
1106                                         // drop such anchors with content preserved.
1107                                         'a' : function( element )
1108                                         {
1109                                                 var attrs = element.attributes;
1110                                                 if ( attrs && !attrs.href && attrs.name )
1111                                                         delete element.name;
1112                                                 else if ( CKEDITOR.env.webkit && attrs.href && attrs.href.match( /file:\/\/\/[\S]+#/i ) )
1113                                                         attrs.href = attrs.href.replace( /file:\/\/\/[^#]+/i,'' );
1114                                         },
1115                                         'cke:listbullet' : function( element )
1116                                         {
1117                                                 if ( element.getAncestor( /h\d/ ) && !config.pasteFromWordNumberedHeadingToList )
1118                                                         delete element.name;
1119                                         }
1120                                 },
1121
1122                                 attributeNames :
1123                                 [
1124                                         // Remove onmouseover and onmouseout events (from MS Word comments effect)
1125                                         [ ( /^onmouse(:?out|over)/ ), '' ],
1126                                         // Onload on image element.
1127                                         [ ( /^onload$/ ), '' ],
1128                                         // Remove office and vml attribute from elements.
1129                                         [ ( /(?:v|o):\w+/ ), '' ],
1130                                         // Remove lang/language attributes.
1131                                         [ ( /^lang/ ), '' ]
1132                                 ],
1133
1134                                 attributes :
1135                                 {
1136                                         'style' : stylesFilter(
1137                                         removeStyles ?
1138                                         // Provide a white-list of styles that we preserve, those should
1139                                         // be the ones that could later be altered with editor tools.
1140                                         [
1141                                                 // Leave list-style-type
1142                                                 [ ( /^list-style-type$/ ), null ],
1143
1144                                                 // Preserve margin-left/right which used as default indent style in the editor.
1145                                                 [ ( /^margin$|^margin-(?!bottom|top)/ ), null, function( value, element, name )
1146                                                         {
1147                                                                 if ( element.name in { p : 1, div : 1 } )
1148                                                                 {
1149                                                                         var indentStyleName = config.contentsLangDirection == 'ltr' ?
1150                                                                                         'margin-left' : 'margin-right';
1151
1152                                                                         // Extract component value from 'margin' shorthand.
1153                                                                         if ( name == 'margin' )
1154                                                                         {
1155                                                                                 value = getStyleComponents( name, value,
1156                                                                                                 [ indentStyleName ] )[ indentStyleName ];
1157                                                                         }
1158                                                                         else if ( name != indentStyleName )
1159                                                                                 return null;
1160
1161                                                                         if ( value && !emptyMarginRegex.test( value ) )
1162                                                                                 return [ indentStyleName, value ];
1163                                                                 }
1164
1165                                                                 return null;
1166                                                         } ],
1167
1168                                                 // Preserve clear float style.
1169                                                 [ ( /^clear$/ ) ],
1170
1171                                                 [ ( /^border.*|margin.*|vertical-align|float$/ ), null,
1172                                                         function( value, element )
1173                                                         {
1174                                                                 if ( element.name == 'img' )
1175                                                                         return value;
1176                                                         } ],
1177
1178                                                 [ (/^width|height$/ ), null,
1179                                                         function( value, element )
1180                                                         {
1181                                                                 if ( element.name in { table : 1, td : 1, th : 1, img : 1 } )
1182                                                                         return value;
1183                                                         } ]
1184                                         ] :
1185                                         // Otherwise provide a black-list of styles that we remove.
1186                                         [
1187                                                 [ ( /^mso-/ ) ],
1188                                                 // Fixing color values.
1189                                                 [ ( /-color$/ ), null, function( value )
1190                                                 {
1191                                                         if ( value == 'transparent' )
1192                                                                 return false;
1193                                                         if ( CKEDITOR.env.gecko )
1194                                                                 return value.replace( /-moz-use-text-color/g, 'transparent' );
1195                                                 } ],
1196                                                 // Remove empty margin values, e.g. 0.00001pt 0em 0pt
1197                                                 [ ( /^margin$/ ), emptyMarginRegex ],
1198                                                 [ 'text-indent', '0cm' ],
1199                                                 [ 'page-break-before' ],
1200                                                 [ 'tab-stops' ],
1201                                                 [ 'display', 'none' ],
1202                                                 removeFontStyles ? [ ( /font-?/ ) ] : null
1203                                         ], removeStyles ),
1204
1205                                         // Prefer width styles over 'width' attributes.
1206                                         'width' : function( value, element )
1207                                         {
1208                                                 if ( element.name in dtd.$tableContent )
1209                                                         return false;
1210                                         },
1211                                         // Prefer border styles over table 'border' attributes.
1212                                         'border' : function( value, element )
1213                                         {
1214                                                 if ( element.name in dtd.$tableContent )
1215                                                         return false;
1216                                         },
1217
1218                                         // Only Firefox carry style sheet from MS-Word, which
1219                                         // will be applied by us manually. For other browsers
1220                                         // the css className is useless.
1221                                         'class' : falsyFilter,
1222
1223                                         // MS-Word always generate 'background-color' along with 'bgcolor',
1224                                         // simply drop the deprecated attributes.
1225                                         'bgcolor' : falsyFilter,
1226
1227                                         // Deprecate 'valign' attribute in favor of 'vertical-align'.
1228                                         'valign' : removeStyles ? falsyFilter : function( value, element )
1229                                         {
1230                                                 element.addStyle( 'vertical-align', value );
1231                                                 return false;
1232                                         }
1233                                 },
1234
1235                                 // Fore none-IE, some useful data might be buried under these IE-conditional
1236                                 // comments where RegExp were the right approach to dig them out where usual approach
1237                                 // is transform it into a fake element node which hold the desired data.
1238                                 comment :
1239                                         !CKEDITOR.env.ie ?
1240                                                 function( value, node )
1241                                                 {
1242                                                         var imageInfo = value.match( /<img.*?>/ ),
1243                                                                 listInfo = value.match( /^\[if !supportLists\]([\s\S]*?)\[endif\]$/ );
1244
1245                                                         // Seek for list bullet indicator.
1246                                                         if ( listInfo )
1247                                                         {
1248                                                                 // Bullet symbol could be either text or an image.
1249                                                                 var listSymbol = listInfo[ 1 ] || ( imageInfo && 'l.' ),
1250                                                                         listType = listSymbol && listSymbol.match( />(?:[(]?)([^\s]+?)([.)]?)</ );
1251                                                                 return createListBulletMarker( listType, listSymbol );
1252                                                         }
1253
1254                                                         // Reveal the <img> element in conditional comments for Firefox.
1255                                                         if ( CKEDITOR.env.gecko && imageInfo )
1256                                                         {
1257                                                                 var img = CKEDITOR.htmlParser.fragment.fromHtml( imageInfo[ 0 ] ).children[ 0 ],
1258                                                                         previousComment = node.previous,
1259                                                                         // Try to dig the real image link from vml markup from previous comment text.
1260                                                                         imgSrcInfo = previousComment && previousComment.value.match( /<v:imagedata[^>]*o:href=['"](.*?)['"]/ ),
1261                                                                         imgSrc = imgSrcInfo && imgSrcInfo[ 1 ];
1262
1263                                                                 // Is there a real 'src' url to be used?
1264                                                                 imgSrc && ( img.attributes.src = imgSrc );
1265                                                                 return img;
1266                                                         }
1267
1268                                                         return false;
1269                                                 }
1270                                         : falsyFilter
1271                         };
1272                 }
1273         });
1274
1275         // The paste processor here is just a reduced copy of html data processor.
1276         var pasteProcessor = function()
1277         {
1278                 this.dataFilter = new CKEDITOR.htmlParser.filter();
1279         };
1280
1281         pasteProcessor.prototype =
1282         {
1283                 toHtml : function( data )
1284                 {
1285                         var fragment = CKEDITOR.htmlParser.fragment.fromHtml( data, false ),
1286                                 writer = new CKEDITOR.htmlParser.basicWriter();
1287
1288                         fragment.writeHtml( writer, this.dataFilter );
1289                         return writer.getHtml( true );
1290                 }
1291         };
1292
1293         CKEDITOR.cleanWord = function( data, editor )
1294         {
1295                 // Firefox will be confused by those downlevel-revealed IE conditional
1296                 // comments, fixing them first( convert it to upperlevel-revealed one ).
1297                 // e.g. <![if !vml]>...<![endif]>
1298                 if ( CKEDITOR.env.gecko )
1299                         data = data.replace( /(<!--\[if[^<]*?\])-->([\S\s]*?)<!--(\[endif\]-->)/gi, '$1$2$3' );
1300
1301                 var dataProcessor = new pasteProcessor(),
1302                         dataFilter = dataProcessor.dataFilter;
1303
1304                 // These rules will have higher priorities than default ones.
1305                 dataFilter.addRules( CKEDITOR.plugins.pastefromword.getRules( editor ) );
1306
1307                 // Allow extending data filter rules.
1308                 editor.fire( 'beforeCleanWord', { filter : dataFilter } );
1309
1310                 try
1311                 {
1312                         data = dataProcessor.toHtml( data, false );
1313                 }
1314                 catch ( e )
1315                 {
1316                         alert( editor.lang.pastefromword.error );
1317                 }
1318
1319                 /* Below post processing those things that are unable to delivered by filter rules. */
1320
1321                 // Remove 'cke' namespaced attribute used in filter rules as marker.
1322                 data = data.replace( /cke:.*?".*?"/g, '' );
1323
1324                 // Remove empty style attribute.
1325                 data = data.replace( /style=""/g, '' );
1326
1327                 // Remove the dummy spans ( having no inline style ).
1328                 data = data.replace( /<span>/g, '' );
1329
1330                 return data;
1331         };
1332 })();
1333
1334 /**
1335  * Whether to ignore all font related formatting styles, including:
1336  * <ul> <li>font size;</li>
1337  *              <li>font family;</li>
1338  *              <li>font foreground/background color.</li></ul>
1339  * @name CKEDITOR.config.pasteFromWordRemoveFontStyles
1340  * @since 3.1
1341  * @type Boolean
1342  * @default true
1343  * @example
1344  * config.pasteFromWordRemoveFontStyles = false;
1345  */
1346
1347 /**
1348  * Whether to transform MS Word outline numbered headings into lists.
1349  * @name CKEDITOR.config.pasteFromWordNumberedHeadingToList
1350  * @since 3.1
1351  * @type Boolean
1352  * @default false
1353  * @example
1354  * config.pasteFromWordNumberedHeadingToList = true;
1355  */
1356
1357 /**
1358  * Whether to remove element styles that can't be managed with the editor. Note
1359  * that this doesn't handle the font specific styles, which depends on the
1360  * {@link CKEDITOR.config.pasteFromWordRemoveFontStyles} setting instead.
1361  * @name CKEDITOR.config.pasteFromWordRemoveStyles
1362  * @since 3.1
1363  * @type Boolean
1364  * @default true
1365  * @example
1366  * config.pasteFromWordRemoveStyles = false;
1367  */