_source/plugins/list/plugin.js

   1 /*\r
   2 Copyright (c) 2003-2013, CKSource - Frederico Knabben. All rights reserved.\r
   3 For licensing, see LICENSE.html or http://ckeditor.com/license\r
   4 */\r
   5 \r
   6 /**\r
   7  * @file Insert and remove numbered and bulleted lists.\r
   8  */\r
   9 \r
  10 (function()\r
  11 {\r
  12         var listNodeNames = { ol : 1, ul : 1 },\r
  13                 emptyTextRegex = /^[\n\r\t ]*$/;\r
  14 \r
  15         var whitespaces = CKEDITOR.dom.walker.whitespaces(),\r
  16                 bookmarks = CKEDITOR.dom.walker.bookmark(),\r
  17                 nonEmpty = function( node ){ return !( whitespaces( node ) || bookmarks( node ) );},\r
  18                 blockBogus = CKEDITOR.dom.walker.bogus();\r
  19 \r
  20         function cleanUpDirection( element )\r
  21         {\r
  22                 var dir, parent, parentDir;\r
  23                 if ( ( dir = element.getDirection() ) )\r
  24                 {\r
  25                         parent = element.getParent();\r
  26                         while ( parent && !( parentDir = parent.getDirection() ) )\r
  27                                 parent = parent.getParent();\r
  28 \r
  29                         if ( dir == parentDir )\r
  30                                 element.removeAttribute( 'dir' );\r
  31                 }\r
  32         }\r
  33 \r
  34         // Inheirt inline styles from another element.\r
  35         function inheirtInlineStyles( parent, el )\r
  36         {\r
  37                 var style = parent.getAttribute( 'style' );\r
  38 \r
  39                 // Put parent styles before child styles.\r
  40                 style && el.setAttribute( 'style',\r
  41                         style.replace( /([^;])$/, '$1;' ) +\r
  42                         ( el.getAttribute( 'style' ) || '' ) );\r
  43         }\r
  44 \r
  45         CKEDITOR.plugins.list = {\r
  46                 /*\r
  47                  * Convert a DOM list tree into a data structure that is easier to\r
  48                  * manipulate. This operation should be non-intrusive in the sense that it\r
  49                  * does not change the DOM tree, with the exception that it may add some\r
  50                  * markers to the list item nodes when database is specified.\r
  51                  */\r
  52                 listToArray : function( listNode, database, baseArray, baseIndentLevel, grandparentNode )\r
  53                 {\r
  54                         if ( !listNodeNames[ listNode.getName() ] )\r
  55                                 return [];\r
  56 \r
  57                         if ( !baseIndentLevel )\r
  58                                 baseIndentLevel = 0;\r
  59                         if ( !baseArray )\r
  60                                 baseArray = [];\r
  61 \r
  62                         // Iterate over all list items to and look for inner lists.\r
  63                         for ( var i = 0, count = listNode.getChildCount() ; i < count ; i++ )\r
  64                         {\r
  65                                 var listItem = listNode.getChild( i );\r
  66 \r
  67                                 // Fixing malformed nested lists by moving it into a previous list item. (#6236)\r
  68                                 if( listItem.type == CKEDITOR.NODE_ELEMENT && listItem.getName() in CKEDITOR.dtd.$list )\r
  69                                         CKEDITOR.plugins.list.listToArray( listItem, database, baseArray, baseIndentLevel + 1 );\r
  70 \r
  71                                 // It may be a text node or some funny stuff.\r
  72                                 if ( listItem.$.nodeName.toLowerCase() != 'li' )\r
  73                                         continue;\r
  74 \r
  75                                 var itemObj = { 'parent' : listNode, indent : baseIndentLevel, element : listItem, contents : [] };\r
  76                                 if ( !grandparentNode )\r
  77                                 {\r
  78                                         itemObj.grandparent = listNode.getParent();\r
  79                                         if ( itemObj.grandparent && itemObj.grandparent.$.nodeName.toLowerCase() == 'li' )\r
  80                                                 itemObj.grandparent = itemObj.grandparent.getParent();\r
  81                                 }\r
  82                                 else\r
  83                                         itemObj.grandparent = grandparentNode;\r
  84 \r
  85                                 if ( database )\r
  86                                         CKEDITOR.dom.element.setMarker( database, listItem, 'listarray_index', baseArray.length );\r
  87                                 baseArray.push( itemObj );\r
  88 \r
  89                                 for ( var j = 0, itemChildCount = listItem.getChildCount(), child; j < itemChildCount ; j++ )\r
  90                                 {\r
  91                                         child = listItem.getChild( j );\r
  92                                         if ( child.type == CKEDITOR.NODE_ELEMENT && listNodeNames[ child.getName() ] )\r
  93                                                 // Note the recursion here, it pushes inner list items with\r
  94                                                 // +1 indentation in the correct order.\r
  95                                                 CKEDITOR.plugins.list.listToArray( child, database, baseArray, baseIndentLevel + 1, itemObj.grandparent );\r
  96                                         else\r
  97                                                 itemObj.contents.push( child );\r
  98                                 }\r
  99                         }\r
 100                         return baseArray;\r
 101                 },\r
 102 \r
 103                 // Convert our internal representation of a list back to a DOM forest.\r
 104                 arrayToList : function( listArray, database, baseIndex, paragraphMode, dir )\r
 105                 {\r
 106                         if ( !baseIndex )\r
 107                                 baseIndex = 0;\r
 108                         if ( !listArray || listArray.length < baseIndex + 1 )\r
 109                                 return null;\r
 110                         var i,\r
 111                                 doc = listArray[ baseIndex ].parent.getDocument(),\r
 112                                 retval = new CKEDITOR.dom.documentFragment( doc ),\r
 113                                 rootNode = null,\r
 114                                 currentIndex = baseIndex,\r
 115                                 indentLevel = Math.max( listArray[ baseIndex ].indent, 0 ),\r
 116                                 currentListItem = null,\r
 117                                 orgDir,\r
 118                                 block,\r
 119                                 paragraphName = ( paragraphMode == CKEDITOR.ENTER_P ? 'p' : 'div' );\r
 120                         while ( 1 )\r
 121                         {\r
 122                                 var item = listArray[ currentIndex ],\r
 123                                         itemGrandParent = item.grandparent;\r
 124 \r
 125                                 orgDir = item.element.getDirection( 1 );\r
 126 \r
 127                                 if ( item.indent == indentLevel )\r
 128                                 {\r
 129                                         if ( !rootNode || listArray[ currentIndex ].parent.getName() != rootNode.getName() )\r
 130                                         {\r
 131                                                 rootNode = listArray[ currentIndex ].parent.clone( false, 1 );\r
 132                                                 dir && rootNode.setAttribute( 'dir', dir );\r
 133                                                 retval.append( rootNode );\r
 134                                         }\r
 135                                         currentListItem = rootNode.append( item.element.clone( 0, 1 ) );\r
 136 \r
 137                                         if ( orgDir != rootNode.getDirection( 1 ) )\r
 138                                                 currentListItem.setAttribute( 'dir', orgDir );\r
 139 \r
 140                                         for ( i = 0 ; i < item.contents.length ; i++ )\r
 141                                                 currentListItem.append( item.contents[i].clone( 1, 1 ) );\r
 142                                         currentIndex++;\r
 143                                 }\r
 144                                 else if ( item.indent == Math.max( indentLevel, 0 ) + 1 )\r
 145                                 {\r
 146                                         // Maintain original direction (#6861).\r
 147                                         var currDir = listArray[ currentIndex - 1 ].element.getDirection( 1 ),\r
 148                                                 listData = CKEDITOR.plugins.list.arrayToList( listArray, null, currentIndex, paragraphMode,\r
 149                                                 currDir != orgDir ? orgDir: null );\r
 150 \r
 151                                         // If the next block is an <li> with another list tree as the first\r
 152                                         // child, we'll need to append a filler (<br>/NBSP) or the list item\r
 153                                         // wouldn't be editable. (#6724)\r
 154                                         if ( !currentListItem.getChildCount() && CKEDITOR.env.ie && !( doc.$.documentMode > 7 ))\r
 155                                                 currentListItem.append( doc.createText( '\xa0' ) );\r
 156                                         currentListItem.append( listData.listNode );\r
 157                                         currentIndex = listData.nextIndex;\r
 158                                 }\r
 159                                 else if ( item.indent == -1 && !baseIndex && itemGrandParent )\r
 160                                 {\r
 161                                         if ( listNodeNames[ itemGrandParent.getName() ] )\r
 162                                         {\r
 163                                                 currentListItem = item.element.clone( false, true );\r
 164                                                 if ( orgDir != itemGrandParent.getDirection( 1 ) )\r
 165                                                         currentListItem.setAttribute( 'dir', orgDir );\r
 166                                         }\r
 167                                         else\r
 168                                                 currentListItem = new CKEDITOR.dom.documentFragment( doc );\r
 169 \r
 170                                         // Migrate all children to the new container,\r
 171                                         // apply the proper text direction.\r
 172                                         var dirLoose = itemGrandParent.getDirection( 1 ) != orgDir,\r
 173                                                 li = item.element,\r
 174                                                 className = li.getAttribute( 'class' ),\r
 175                                                 style = li.getAttribute( 'style' );\r
 176 \r
 177                                         var needsBlock = currentListItem.type ==\r
 178                                                          CKEDITOR.NODE_DOCUMENT_FRAGMENT &&\r
 179                                                          ( paragraphMode != CKEDITOR.ENTER_BR || dirLoose ||\r
 180                                                            style || className );\r
 181 \r
 182                                         var child, count = item.contents.length;\r
 183                                         for ( i = 0 ; i < count; i++ )\r
 184                                         {\r
 185                                                 child = item.contents[ i ];\r
 186 \r
 187                                                 if ( child.type == CKEDITOR.NODE_ELEMENT && child.isBlockBoundary() )\r
 188                                                 {\r
 189                                                         // Apply direction on content blocks.\r
 190                                                         if ( dirLoose && !child.getDirection() )\r
 191                                                                 child.setAttribute( 'dir', orgDir );\r
 192 \r
 193                                                         inheirtInlineStyles( li, child );\r
 194 \r
 195                                                         className && child.addClass( className );\r
 196                                                 }\r
 197                                                 else if ( needsBlock )\r
 198                                                 {\r
 199                                                         // Establish new block to hold text direction and styles.\r
 200                                                         if ( !block )\r
 201                                                         {\r
 202                                                                 block = doc.createElement( paragraphName );\r
 203                                                                 dirLoose && block.setAttribute( 'dir', orgDir );\r
 204                                                         }\r
 205 \r
 206                                                         // Copy over styles to new block;\r
 207                                                         style && block.setAttribute( 'style', style );\r
 208                                                         className && block.setAttribute( 'class', className );\r
 209 \r
 210                                                         block.append( child.clone( 1, 1 ) );\r
 211                                                 }\r
 212 \r
 213                                                 currentListItem.append( block || child.clone( 1, 1 ) );\r
 214                                         }\r
 215 \r
 216                                         if ( currentListItem.type == CKEDITOR.NODE_DOCUMENT_FRAGMENT\r
 217                                                  && currentIndex != listArray.length - 1 )\r
 218                                         {\r
 219                                                 var last = currentListItem.getLast();\r
 220                                                 if ( last && last.type == CKEDITOR.NODE_ELEMENT\r
 221                                                                 && last.getAttribute( 'type' ) == '_moz' )\r
 222                                                 {\r
 223                                                         last.remove();\r
 224                                                 }\r
 225 \r
 226                                                 if ( !( last = currentListItem.getLast( nonEmpty )\r
 227                                                         && last.type == CKEDITOR.NODE_ELEMENT\r
 228                                                         && last.getName() in CKEDITOR.dtd.$block ) )\r
 229                                                 {\r
 230                                                         currentListItem.append( doc.createElement( 'br' ) );\r
 231                                                 }\r
 232                                         }\r
 233 \r
 234                                         var currentListItemName = currentListItem.$.nodeName.toLowerCase();\r
 235                                         if ( !CKEDITOR.env.ie && ( currentListItemName == 'div' || currentListItemName == 'p' ) )\r
 236                                                 currentListItem.appendBogus();\r
 237                                         retval.append( currentListItem );\r
 238                                         rootNode = null;\r
 239                                         currentIndex++;\r
 240                                 }\r
 241                                 else\r
 242                                         return null;\r
 243 \r
 244                                 block = null;\r
 245 \r
 246                                 if ( listArray.length <= currentIndex || Math.max( listArray[ currentIndex ].indent, 0 ) < indentLevel )\r
 247                                         break;\r
 248                         }\r
 249 \r
 250                         if ( database )\r
 251                         {\r
 252                                 var currentNode = retval.getFirst(),\r
 253                                         listRoot = listArray[ 0 ].parent;\r
 254 \r
 255                                 while ( currentNode )\r
 256                                 {\r
 257                                         if ( currentNode.type == CKEDITOR.NODE_ELEMENT )\r
 258                                         {\r
 259                                                 // Clear marker attributes for the new list tree made of cloned nodes, if any.\r
 260                                                 CKEDITOR.dom.element.clearMarkers( database, currentNode );\r
 261 \r
 262                                                 // Clear redundant direction attribute specified on list items.\r
 263                                                 if ( currentNode.getName() in CKEDITOR.dtd.$listItem )\r
 264                                                         cleanUpDirection( currentNode );\r
 265                                         }\r
 266 \r
 267                                         currentNode = currentNode.getNextSourceNode();\r
 268                                 }\r
 269                         }\r
 270 \r
 271                         return { listNode : retval, nextIndex : currentIndex };\r
 272                 }\r
 273         };\r
 274 \r
 275         function onSelectionChange( evt )\r
 276         {\r
 277                 if ( evt.editor.readOnly )\r
 278                         return null;\r
 279 \r
 280                 var path = evt.data.path,\r
 281                         blockLimit = path.blockLimit,\r
 282                         elements = path.elements,\r
 283                         element,\r
 284                         i;\r
 285 \r
 286                 // Grouping should only happen under blockLimit.(#3940).\r
 287                 for ( i = 0 ; i < elements.length && ( element = elements[ i ] )\r
 288                           && !element.equals( blockLimit ); i++ )\r
 289                 {\r
 290                         if ( listNodeNames[ elements[ i ].getName() ] )\r
 291                                 return this.setState( this.type == elements[ i ].getName() ? CKEDITOR.TRISTATE_ON : CKEDITOR.TRISTATE_OFF );\r
 292                 }\r
 293 \r
 294                 return this.setState( CKEDITOR.TRISTATE_OFF );\r
 295         }\r
 296 \r
 297         function changeListType( editor, groupObj, database, listsCreated )\r
 298         {\r
 299                 // This case is easy...\r
 300                 // 1. Convert the whole list into a one-dimensional array.\r
 301                 // 2. Change the list type by modifying the array.\r
 302                 // 3. Recreate the whole list by converting the array to a list.\r
 303                 // 4. Replace the original list with the recreated list.\r
 304                 var listArray = CKEDITOR.plugins.list.listToArray( groupObj.root, database ),\r
 305                         selectedListItems = [];\r
 306 \r
 307                 for ( var i = 0 ; i < groupObj.contents.length ; i++ )\r
 308                 {\r
 309                         var itemNode = groupObj.contents[i];\r
 310                         itemNode = itemNode.getAscendant( 'li', true );\r
 311                         if ( !itemNode || itemNode.getCustomData( 'list_item_processed' ) )\r
 312                                 continue;\r
 313                         selectedListItems.push( itemNode );\r
 314                         CKEDITOR.dom.element.setMarker( database, itemNode, 'list_item_processed', true );\r
 315                 }\r
 316 \r
 317                 var root = groupObj.root,\r
 318                         doc = root.getDocument(),\r
 319                         listNode,\r
 320                         newListNode;\r
 321 \r
 322                 for ( i = 0 ; i < selectedListItems.length ; i++ )\r
 323                 {\r
 324                         var listIndex = selectedListItems[i].getCustomData( 'listarray_index' );\r
 325                         listNode = listArray[ listIndex ].parent;\r
 326 \r
 327                         // Switch to new list node for this particular item.\r
 328                         if ( !listNode.is( this.type ) )\r
 329                         {\r
 330                                 newListNode = doc.createElement( this.type );\r
 331                                 // Copy all attributes, except from 'start' and 'type'.\r
 332                                 listNode.copyAttributes( newListNode, { start : 1, type : 1 } );\r
 333                                 // The list-style-type property should be ignored.\r
 334                                 newListNode.removeStyle( 'list-style-type' );\r
 335                                 listArray[ listIndex ].parent = newListNode;\r
 336                         }\r
 337                 }\r
 338 \r
 339                 var newList = CKEDITOR.plugins.list.arrayToList( listArray, database, null, editor.config.enterMode );\r
 340                 var child, length = newList.listNode.getChildCount();\r
 341                 for ( i = 0 ; i < length && ( child = newList.listNode.getChild( i ) ) ; i++ )\r
 342                 {\r
 343                         if ( child.getName() == this.type )\r
 344                                 listsCreated.push( child );\r
 345                 }\r
 346                 newList.listNode.replace( groupObj.root );\r
 347         }\r
 348 \r
 349         var headerTagRegex = /^h[1-6]$/;\r
 350 \r
 351         function createList( editor, groupObj, listsCreated )\r
 352         {\r
 353                 var contents = groupObj.contents,\r
 354                         doc = groupObj.root.getDocument(),\r
 355                         listContents = [];\r
 356 \r
 357                 // It is possible to have the contents returned by DomRangeIterator to be the same as the root.\r
 358                 // e.g. when we're running into table cells.\r
 359                 // In such a case, enclose the childNodes of contents[0] into a <div>.\r
 360                 if ( contents.length == 1 && contents[0].equals( groupObj.root ) )\r
 361                 {\r
 362                         var divBlock = doc.createElement( 'div' );\r
 363                         contents[0].moveChildren && contents[0].moveChildren( divBlock );\r
 364                         contents[0].append( divBlock );\r
 365                         contents[0] = divBlock;\r
 366                 }\r
 367 \r
 368                 // Calculate the common parent node of all content blocks.\r
 369                 var commonParent = groupObj.contents[0].getParent();\r
 370                 for ( var i = 0 ; i < contents.length ; i++ )\r
 371                         commonParent = commonParent.getCommonAncestor( contents[i].getParent() );\r
 372 \r
 373                 var useComputedState = editor.config.useComputedState,\r
 374                         listDir, explicitDirection;\r
 375 \r
 376                 useComputedState = useComputedState === undefined || useComputedState;\r
 377 \r
 378                 // We want to insert things that are in the same tree level only, so calculate the contents again\r
 379                 // by expanding the selected blocks to the same tree level.\r
 380                 for ( i = 0 ; i < contents.length ; i++ )\r
 381                 {\r
 382                         var contentNode = contents[i],\r
 383                                 parentNode;\r
 384                         while ( ( parentNode = contentNode.getParent() ) )\r
 385                         {\r
 386                                 if ( parentNode.equals( commonParent ) )\r
 387                                 {\r
 388                                         listContents.push( contentNode );\r
 389 \r
 390                                         // Determine the lists's direction.\r
 391                                         if ( !explicitDirection && contentNode.getDirection() )\r
 392                                                 explicitDirection = 1;\r
 393 \r
 394                                         var itemDir = contentNode.getDirection( useComputedState );\r
 395 \r
 396                                         if ( listDir !== null )\r
 397                                         {\r
 398                                                 // If at least one LI have a different direction than current listDir, we can't have listDir.\r
 399                                                 if ( listDir && listDir != itemDir )\r
 400                                                         listDir = null;\r
 401                                                 else\r
 402                                                         listDir = itemDir;\r
 403                                         }\r
 404 \r
 405                                         break;\r
 406                                 }\r
 407                                 contentNode = parentNode;\r
 408                         }\r
 409                 }\r
 410 \r
 411                 if ( listContents.length < 1 )\r
 412                         return;\r
 413 \r
 414                 // Insert the list to the DOM tree.\r
 415                 var insertAnchor = listContents[ listContents.length - 1 ].getNext(),\r
 416                         listNode = doc.createElement( this.type );\r
 417 \r
 418                 listsCreated.push( listNode );\r
 419 \r
 420                 var contentBlock, listItem;\r
 421 \r
 422                 while ( listContents.length )\r
 423                 {\r
 424                         contentBlock = listContents.shift();\r
 425                         listItem = doc.createElement( 'li' );\r
 426 \r
 427                         // Preserve preformat block and heading structure when converting to list item. (#5335) (#5271)\r
 428                         if ( contentBlock.is( 'pre' ) || headerTagRegex.test( contentBlock.getName() ) )\r
 429                                 contentBlock.appendTo( listItem );\r
 430                         else\r
 431                         {\r
 432                                 contentBlock.copyAttributes( listItem );\r
 433                                 // Remove direction attribute after it was merged into list root. (#7657)\r
 434                                 if ( listDir && contentBlock.getDirection() )\r
 435                                 {\r
 436                                         listItem.removeStyle( 'direction' );\r
 437                                         listItem.removeAttribute( 'dir' );\r
 438                                 }\r
 439                                 contentBlock.moveChildren( listItem );\r
 440                                 contentBlock.remove();\r
 441                         }\r
 442 \r
 443                         listItem.appendTo( listNode );\r
 444                 }\r
 445 \r
 446                 // Apply list root dir only if it has been explicitly declared.\r
 447                 if ( listDir && explicitDirection )\r
 448                         listNode.setAttribute( 'dir', listDir );\r
 449 \r
 450                 if ( insertAnchor )\r
 451                         listNode.insertBefore( insertAnchor );\r
 452                 else\r
 453                         listNode.appendTo( commonParent );\r
 454         }\r
 455 \r
 456         function removeList( editor, groupObj, database )\r
 457         {\r
 458                 // This is very much like the change list type operation.\r
 459                 // Except that we're changing the selected items' indent to -1 in the list array.\r
 460                 var listArray = CKEDITOR.plugins.list.listToArray( groupObj.root, database ),\r
 461                         selectedListItems = [];\r
 462 \r
 463                 for ( var i = 0 ; i < groupObj.contents.length ; i++ )\r
 464                 {\r
 465                         var itemNode = groupObj.contents[i];\r
 466                         itemNode = itemNode.getAscendant( 'li', true );\r
 467                         if ( !itemNode || itemNode.getCustomData( 'list_item_processed' ) )\r
 468                                 continue;\r
 469                         selectedListItems.push( itemNode );\r
 470                         CKEDITOR.dom.element.setMarker( database, itemNode, 'list_item_processed', true );\r
 471                 }\r
 472 \r
 473                 var lastListIndex = null;\r
 474                 for ( i = 0 ; i < selectedListItems.length ; i++ )\r
 475                 {\r
 476                         var listIndex = selectedListItems[i].getCustomData( 'listarray_index' );\r
 477                         listArray[listIndex].indent = -1;\r
 478                         lastListIndex = listIndex;\r
 479                 }\r
 480 \r
 481                 // After cutting parts of the list out with indent=-1, we still have to maintain the array list\r
 482                 // model's nextItem.indent <= currentItem.indent + 1 invariant. Otherwise the array model of the\r
 483                 // list cannot be converted back to a real DOM list.\r
 484                 for ( i = lastListIndex + 1 ; i < listArray.length ; i++ )\r
 485                 {\r
 486                         if ( listArray[i].indent > listArray[i-1].indent + 1 )\r
 487                         {\r
 488                                 var indentOffset = listArray[i-1].indent + 1 - listArray[i].indent;\r
 489                                 var oldIndent = listArray[i].indent;\r
 490                                 while ( listArray[i] && listArray[i].indent >= oldIndent )\r
 491                                 {\r
 492                                         listArray[i].indent += indentOffset;\r
 493                                         i++;\r
 494                                 }\r
 495                                 i--;\r
 496                         }\r
 497                 }\r
 498 \r
 499                 var newList = CKEDITOR.plugins.list.arrayToList( listArray, database, null, editor.config.enterMode,\r
 500                         groupObj.root.getAttribute( 'dir' ) );\r
 501 \r
 502                 // Compensate <br> before/after the list node if the surrounds are non-blocks.(#3836)\r
 503                 var docFragment = newList.listNode, boundaryNode, siblingNode;\r
 504                 function compensateBrs( isStart )\r
 505                 {\r
 506                         if ( ( boundaryNode = docFragment[ isStart ? 'getFirst' : 'getLast' ]() )\r
 507                                  && !( boundaryNode.is && boundaryNode.isBlockBoundary() )\r
 508                                  && ( siblingNode = groupObj.root[ isStart ? 'getPrevious' : 'getNext' ]\r
 509                                       ( CKEDITOR.dom.walker.whitespaces( true ) ) )\r
 510                                  && !( siblingNode.is && siblingNode.isBlockBoundary( { br : 1 } ) ) )\r
 511                                 editor.document.createElement( 'br' )[ isStart ? 'insertBefore' : 'insertAfter' ]( boundaryNode );\r
 512                 }\r
 513                 compensateBrs( true );\r
 514                 compensateBrs();\r
 515 \r
 516                 docFragment.replace( groupObj.root );\r
 517         }\r
 518 \r
 519         function listCommand( name, type )\r
 520         {\r
 521                 this.name = name;\r
 522                 this.type = type;\r
 523         }\r
 524 \r
 525         var elementType = CKEDITOR.dom.walker.nodeType( CKEDITOR.NODE_ELEMENT );\r
 526 \r
 527         // Merge child nodes with direction preserved. (#7448)\r
 528         function mergeChildren( from, into, refNode, forward )\r
 529         {\r
 530                 var child, itemDir;\r
 531                 while ( ( child = from[ forward ? 'getLast' : 'getFirst' ]( elementType ) ) )\r
 532                 {\r
 533                         if ( ( itemDir = child.getDirection( 1 ) ) !== into.getDirection( 1 ) )\r
 534                                 child.setAttribute( 'dir', itemDir );\r
 535 \r
 536                         child.remove();\r
 537 \r
 538                         refNode ?\r
 539                                 child[ forward ? 'insertBefore' : 'insertAfter' ]( refNode ) :\r
 540                                 into.append( child, forward  );\r
 541                 }\r
 542         }\r
 543 \r
 544         listCommand.prototype = {\r
 545                 exec : function( editor )\r
 546                 {\r
 547                         var doc = editor.document,\r
 548                                 config = editor.config,\r
 549                                 selection = editor.getSelection(),\r
 550                                 ranges = selection && selection.getRanges( true );\r
 551 \r
 552                         // There should be at least one selected range.\r
 553                         if ( !ranges || ranges.length < 1 )\r
 554                                 return;\r
 555 \r
 556                         // Midas lists rule #1 says we can create a list even in an empty document.\r
 557                         // But DOM iterator wouldn't run if the document is really empty.\r
 558                         // So create a paragraph if the document is empty and we're going to create a list.\r
 559                         if ( this.state == CKEDITOR.TRISTATE_OFF )\r
 560                         {\r
 561                                 var body = doc.getBody();\r
 562                                 if ( !body.getFirst( nonEmpty ) )\r
 563                                 {\r
 564                                         config.enterMode == CKEDITOR.ENTER_BR ?\r
 565                                                 body.appendBogus() :\r
 566                                                 ranges[ 0 ].fixBlock( 1, config.enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' );\r
 567 \r
 568                                         selection.selectRanges( ranges );\r
 569                                 }\r
 570                                 // Maybe a single range there enclosing the whole list,\r
 571                                 // turn on the list state manually(#4129).\r
 572                                 else\r
 573                                 {\r
 574                                         var range = ranges.length == 1 && ranges[ 0 ],\r
 575                                                 enclosedNode = range && range.getEnclosedNode();\r
 576                                         if ( enclosedNode && enclosedNode.is\r
 577                                                 && this.type == enclosedNode.getName() )\r
 578                                                         this.setState( CKEDITOR.TRISTATE_ON );\r
 579                                 }\r
 580                         }\r
 581 \r
 582                         var bookmarks = selection.createBookmarks( true );\r
 583 \r
 584                         // Group the blocks up because there are many cases where multiple lists have to be created,\r
 585                         // or multiple lists have to be cancelled.\r
 586                         var listGroups = [],\r
 587                                 database = {},\r
 588                                 rangeIterator = ranges.createIterator(),\r
 589                                 index = 0;\r
 590 \r
 591                         while ( ( range = rangeIterator.getNextRange() ) && ++index )\r
 592                         {\r
 593                                 var boundaryNodes = range.getBoundaryNodes(),\r
 594                                         startNode = boundaryNodes.startNode,\r
 595                                         endNode = boundaryNodes.endNode;\r
 596 \r
 597                                 if ( startNode.type == CKEDITOR.NODE_ELEMENT && startNode.getName() == 'td' )\r
 598                                         range.setStartAt( boundaryNodes.startNode, CKEDITOR.POSITION_AFTER_START );\r
 599 \r
 600                                 if ( endNode.type == CKEDITOR.NODE_ELEMENT && endNode.getName() == 'td' )\r
 601                                         range.setEndAt( boundaryNodes.endNode, CKEDITOR.POSITION_BEFORE_END );\r
 602 \r
 603                                 var iterator = range.createIterator(),\r
 604                                         block;\r
 605 \r
 606                                 iterator.forceBrBreak = ( this.state == CKEDITOR.TRISTATE_OFF );\r
 607 \r
 608                                 while ( ( block = iterator.getNextParagraph() ) )\r
 609                                 {\r
 610                                         // Avoid duplicate blocks get processed across ranges.\r
 611                                         if( block.getCustomData( 'list_block' ) )\r
 612                                                 continue;\r
 613                                         else\r
 614                                                 CKEDITOR.dom.element.setMarker( database, block, 'list_block', 1 );\r
 615 \r
 616                                         var path = new CKEDITOR.dom.elementPath( block ),\r
 617                                                 pathElements = path.elements,\r
 618                                                 pathElementsCount = pathElements.length,\r
 619                                                 listNode = null,\r
 620                                                 processedFlag = 0,\r
 621                                                 blockLimit = path.blockLimit,\r
 622                                                 element;\r
 623 \r
 624                                         // First, try to group by a list ancestor.\r
 625                                         for ( var i = pathElementsCount - 1; i >= 0 && ( element = pathElements[ i ] ); i-- )\r
 626                                         {\r
 627                                                 if ( listNodeNames[ element.getName() ]\r
 628                                                          && blockLimit.contains( element ) )     // Don't leak outside block limit (#3940).\r
 629                                                 {\r
 630                                                         // If we've encountered a list inside a block limit\r
 631                                                         // The last group object of the block limit element should\r
 632                                                         // no longer be valid. Since paragraphs after the list\r
 633                                                         // should belong to a different group of paragraphs before\r
 634                                                         // the list. (Bug #1309)\r
 635                                                         blockLimit.removeCustomData( 'list_group_object_' + index );\r
 636 \r
 637                                                         var groupObj = element.getCustomData( 'list_group_object' );\r
 638                                                         if ( groupObj )\r
 639                                                                 groupObj.contents.push( block );\r
 640                                                         else\r
 641                                                         {\r
 642                                                                 groupObj = { root : element, contents : [ block ] };\r
 643                                                                 listGroups.push( groupObj );\r
 644                                                                 CKEDITOR.dom.element.setMarker( database, element, 'list_group_object', groupObj );\r
 645                                                         }\r
 646                                                         processedFlag = 1;\r
 647                                                         break;\r
 648                                                 }\r
 649                                         }\r
 650 \r
 651                                         if ( processedFlag )\r
 652                                                 continue;\r
 653 \r
 654                                         // No list ancestor? Group by block limit, but don't mix contents from different ranges.\r
 655                                         var root = blockLimit;\r
 656                                         if ( root.getCustomData( 'list_group_object_' + index ) )\r
 657                                                 root.getCustomData( 'list_group_object_' + index ).contents.push( block );\r
 658                                         else\r
 659                                         {\r
 660                                                 groupObj = { root : root, contents : [ block ] };\r
 661                                                 CKEDITOR.dom.element.setMarker( database, root, 'list_group_object_' + index, groupObj );\r
 662                                                 listGroups.push( groupObj );\r
 663                                         }\r
 664                                 }\r
 665                         }\r
 666 \r
 667                         // Now we have two kinds of list groups, groups rooted at a list, and groups rooted at a block limit element.\r
 668                         // We either have to build lists or remove lists, for removing a list does not makes sense when we are looking\r
 669                         // at the group that's not rooted at lists. So we have three cases to handle.\r
 670                         var listsCreated = [];\r
 671                         while ( listGroups.length > 0 )\r
 672                         {\r
 673                                 groupObj = listGroups.shift();\r
 674                                 if ( this.state == CKEDITOR.TRISTATE_OFF )\r
 675                                 {\r
 676                                         if ( listNodeNames[ groupObj.root.getName() ] )\r
 677                                                 changeListType.call( this, editor, groupObj, database, listsCreated );\r
 678                                         else\r
 679                                                 createList.call( this, editor, groupObj, listsCreated );\r
 680                                 }\r
 681                                 else if ( this.state == CKEDITOR.TRISTATE_ON && listNodeNames[ groupObj.root.getName() ] )\r
 682                                         removeList.call( this, editor, groupObj, database );\r
 683                         }\r
 684 \r
 685                         // For all new lists created, merge into adjacent, same type lists.\r
 686                         for ( i = 0 ; i < listsCreated.length ; i++ )\r
 687                                 mergeListSiblings( listsCreated[ i ] );\r
 688 \r
 689                         // Clean up, restore selection and update toolbar button states.\r
 690                         CKEDITOR.dom.element.clearAllMarkers( database );\r
 691                         selection.selectBookmarks( bookmarks );\r
 692                         editor.focus();\r
 693                 }\r
 694         };\r
 695 \r
 696         // Merge list adjacent, of same type lists.\r
 697         function mergeListSiblings( listNode )\r
 698         {\r
 699                 var mergeSibling;\r
 700                 ( mergeSibling = function( rtl )\r
 701                 {\r
 702                         var sibling = listNode[ rtl ? 'getPrevious' : 'getNext' ]( nonEmpty );\r
 703                         if ( sibling && sibling.type == CKEDITOR.NODE_ELEMENT &&\r
 704                              sibling.is( listNode.getName() ) )\r
 705                         {\r
 706                                 // Move children order by merge direction.(#3820)\r
 707                                 mergeChildren( listNode, sibling, null, !rtl );\r
 708 \r
 709                                 listNode.remove();\r
 710                                 listNode = sibling;\r
 711                         }\r
 712                 } )();\r
 713                 mergeSibling( 1 );\r
 714         }\r
 715 \r
 716         var dtd = CKEDITOR.dtd;\r
 717         var tailNbspRegex = /[\t\r\n ]*(?:&nbsp;|\xa0)$/;\r
 718 \r
 719         function indexOfFirstChildElement( element, tagNameList )\r
 720         {\r
 721                 var child,\r
 722                         children = element.children,\r
 723                         length = children.length;\r
 724 \r
 725                 for ( var i = 0 ; i < length ; i++ )\r
 726                 {\r
 727                         child = children[ i ];\r
 728                         if ( child.name && ( child.name in tagNameList ) )\r
 729                                 return i;\r
 730                 }\r
 731 \r
 732                 return length;\r
 733         }\r
 734 \r
 735         function getExtendNestedListFilter( isHtmlFilter )\r
 736         {\r
 737                 // An element filter function that corrects nested list start in an empty\r
 738                 // list item for better displaying/outputting. (#3165)\r
 739                 return function( listItem )\r
 740                 {\r
 741                         var children = listItem.children,\r
 742                                 firstNestedListIndex = indexOfFirstChildElement( listItem, dtd.$list ),\r
 743                                 firstNestedList = children[ firstNestedListIndex ],\r
 744                                 nodeBefore = firstNestedList && firstNestedList.previous,\r
 745                                 tailNbspmatch;\r
 746 \r
 747                         if ( nodeBefore\r
 748                                 && ( nodeBefore.name && nodeBefore.name == 'br'\r
 749                                         || nodeBefore.value && ( tailNbspmatch = nodeBefore.value.match( tailNbspRegex ) ) ) )\r
 750                         {\r
 751                                 var fillerNode = nodeBefore;\r
 752 \r
 753                                 // Always use 'nbsp' as filler node if we found a nested list appear\r
 754                                 // in front of a list item.\r
 755                                 if ( !( tailNbspmatch && tailNbspmatch.index ) && fillerNode == children[ 0 ] )\r
 756                                         children[ 0 ] = ( isHtmlFilter || CKEDITOR.env.ie ) ?\r
 757                                                          new CKEDITOR.htmlParser.text( '\xa0' ) :\r
 758                                                                          new CKEDITOR.htmlParser.element( 'br', {} );\r
 759 \r
 760                                 // Otherwise the filler is not needed anymore.\r
 761                                 else if ( fillerNode.name == 'br' )\r
 762                                         children.splice( firstNestedListIndex - 1, 1 );\r
 763                                 else\r
 764                                         fillerNode.value = fillerNode.value.replace( tailNbspRegex, '' );\r
 765                         }\r
 766 \r
 767                 };\r
 768         }\r
 769 \r
 770         var defaultListDataFilterRules = { elements : {} };\r
 771         for ( var i in dtd.$listItem )\r
 772                 defaultListDataFilterRules.elements[ i ] = getExtendNestedListFilter();\r
 773 \r
 774         var defaultListHtmlFilterRules = { elements : {} };\r
 775         for ( i in dtd.$listItem )\r
 776                 defaultListHtmlFilterRules.elements[ i ] = getExtendNestedListFilter( true );\r
 777 \r
 778         // Check if node is block element that recieves text.\r
 779         function isTextBlock( node )\r
 780         {\r
 781                 return node.type == CKEDITOR.NODE_ELEMENT &&\r
 782                            ( node.getName() in CKEDITOR.dtd.$block ||\r
 783                                  node.getName() in CKEDITOR.dtd.$listItem ) &&\r
 784                            CKEDITOR.dtd[ node.getName() ][ '#' ];\r
 785         }\r
 786 \r
 787         // Join visually two block lines.\r
 788         function joinNextLineToCursor( editor, cursor, nextCursor )\r
 789         {\r
 790                 editor.fire( 'saveSnapshot' );\r
 791 \r
 792                 // Merge with previous block's content.\r
 793                 nextCursor.enlarge( CKEDITOR.ENLARGE_LIST_ITEM_CONTENTS );\r
 794                 var frag = nextCursor.extractContents();\r
 795 \r
 796                 cursor.trim( false, true );\r
 797                 var bm = cursor.createBookmark();\r
 798 \r
 799                 // Kill original bogus;\r
 800                 var currentPath = new CKEDITOR.dom.elementPath( cursor.startContainer ),\r
 801                                 pathBlock = currentPath.block,\r
 802                                 currentBlock = currentPath.lastElement.getAscendant( 'li', 1 ) || pathBlock,\r
 803                                 nextPath = new CKEDITOR.dom.elementPath( nextCursor.startContainer ),\r
 804                                 nextLi = nextPath.contains( CKEDITOR.dtd.$listItem ),\r
 805                                 nextList = nextPath.contains( CKEDITOR.dtd.$list ),\r
 806                                 last;\r
 807 \r
 808                 // Remove bogus node the current block/pseudo block.\r
 809                 if ( pathBlock )\r
 810                 {\r
 811                         var bogus = pathBlock.getBogus();\r
 812                         bogus && bogus.remove();\r
 813                 }\r
 814                 else if ( nextList )\r
 815                 {\r
 816                         last = nextList.getPrevious( nonEmpty );\r
 817                         if ( last && blockBogus( last ) )\r
 818                                 last.remove();\r
 819                 }\r
 820 \r
 821                 // Kill the tail br in extracted.\r
 822                 last = frag.getLast();\r
 823                 if ( last && last.type == CKEDITOR.NODE_ELEMENT && last.is( 'br' ) )\r
 824                         last.remove();\r
 825 \r
 826                 // Insert fragment at the range position.\r
 827                 var nextNode = cursor.startContainer.getChild( cursor.startOffset );\r
 828                 if ( nextNode )\r
 829                         frag.insertBefore( nextNode );\r
 830                 else\r
 831                         cursor.startContainer.append( frag );\r
 832 \r
 833                 // Move the sub list nested in the next list item.\r
 834                 if ( nextLi )\r
 835                 {\r
 836                         var sublist = getSubList( nextLi );\r
 837                         if ( sublist )\r
 838                         {\r
 839                                 // If next line is in the sub list of the current list item.\r
 840                                 if ( currentBlock.contains( nextLi ) )\r
 841                                 {\r
 842                                         mergeChildren( sublist, nextLi.getParent(), nextLi );\r
 843                                         sublist.remove();\r
 844                                 }\r
 845                                 // Migrate the sub list to current list item.\r
 846                                 else\r
 847                                         currentBlock.append( sublist );\r
 848                         }\r
 849                 }\r
 850 \r
 851                 // Remove any remaining empty path blocks at next line after merging.\r
 852                 while ( nextCursor.checkStartOfBlock() &&\r
 853                          nextCursor.checkEndOfBlock() )\r
 854                 {\r
 855                         nextPath = new CKEDITOR.dom.elementPath( nextCursor.startContainer );\r
 856                         var nextBlock = nextPath.block, parent;\r
 857 \r
 858                         // Check if also to remove empty list.\r
 859                         if ( nextBlock.is( 'li' ) )\r
 860                         {\r
 861                                 parent = nextBlock.getParent();\r
 862                                 if ( nextBlock.equals( parent.getLast( nonEmpty ) )\r
 863                                                 && nextBlock.equals( parent.getFirst( nonEmpty ) ) )\r
 864                                         nextBlock = parent;\r
 865                         }\r
 866 \r
 867                         nextCursor.moveToPosition( nextBlock, CKEDITOR.POSITION_BEFORE_START );\r
 868                         nextBlock.remove();\r
 869                 }\r
 870 \r
 871                 // Check if need to further merge with the list resides after the merged block. (#9080)\r
 872                 var walkerRng = nextCursor.clone(), body = editor.document.getBody();\r
 873                 walkerRng.setEndAt( body, CKEDITOR.POSITION_BEFORE_END );\r
 874                 var walker = new CKEDITOR.dom.walker( walkerRng );\r
 875                 walker.evaluator = function( node ) { return nonEmpty( node ) && !blockBogus( node ); };\r
 876                 var next = walker.next();\r
 877                 if ( next && next.type == CKEDITOR.NODE_ELEMENT && next.getName() in CKEDITOR.dtd.$list )\r
 878                         mergeListSiblings( next );\r
 879 \r
 880                 cursor.moveToBookmark( bm );\r
 881 \r
 882                 // Make fresh selection.\r
 883                 cursor.select();\r
 884 \r
 885                 editor.selectionChange( 1 );\r
 886                 editor.fire( 'saveSnapshot' );\r
 887         }\r
 888 \r
 889         function getSubList( li )\r
 890         {\r
 891                 var last = li.getLast( nonEmpty );\r
 892                 return last && last.type == CKEDITOR.NODE_ELEMENT && last.getName() in listNodeNames ? last : null;\r
 893         }\r
 894 \r
 895         CKEDITOR.plugins.add( 'list',\r
 896         {\r
 897                 init : function( editor )\r
 898                 {\r
 899                         // Register commands.\r
 900                         var numberedListCommand = editor.addCommand( 'numberedlist', new listCommand( 'numberedlist', 'ol' ) ),\r
 901                                 bulletedListCommand = editor.addCommand( 'bulletedlist', new listCommand( 'bulletedlist', 'ul' ) );\r
 902 \r
 903                         // Register the toolbar button.\r
 904                         editor.ui.addButton( 'NumberedList',\r
 905                                 {\r
 906                                         label : editor.lang.numberedlist,\r
 907                                         command : 'numberedlist'\r
 908                                 } );\r
 909                         editor.ui.addButton( 'BulletedList',\r
 910                                 {\r
 911                                         label : editor.lang.bulletedlist,\r
 912                                         command : 'bulletedlist'\r
 913                                 } );\r
 914 \r
 915                         // Register the state changing handlers.\r
 916                         editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, numberedListCommand ) );\r
 917                         editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, bulletedListCommand ) );\r
 918 \r
 919                                 // Handled backspace/del key to join list items. (#8248,#9080)\r
 920                                 editor.on( 'key', function( evt )\r
 921                                 {\r
 922                                         var key = evt.data.keyCode;\r
 923 \r
 924                                         // DEl/BACKSPACE\r
 925                                         if ( editor.mode == 'wysiwyg' && key in { 8 : 1, 46 : 1 } )\r
 926                                         {\r
 927                                                 var sel = editor.getSelection(),\r
 928                                                 range = sel.getRanges()[ 0 ];\r
 929 \r
 930                                                 if ( !range.collapsed )\r
 931                                                         return;\r
 932 \r
 933                                                 var path = new CKEDITOR.dom.elementPath( range.startContainer );\r
 934                                                 var isBackspace = key == 8;\r
 935                                                 var body = editor.document.getBody();\r
 936                                                 var walker = new CKEDITOR.dom.walker( range.clone() );\r
 937                                                 walker.evaluator = function( node ) { return nonEmpty( node ) && !blockBogus( node ); };\r
 938 \r
 939                                                 // Backspace/Del behavior at the start/end of table is handled in core.\r
 940                                                 walker.guard = function( node, isOut ) { return !( isOut && node.type == CKEDITOR.NODE_ELEMENT && node.is( 'table' ) ); };\r
 941 \r
 942                                                 var cursor = range.clone();\r
 943 \r
 944                                                 if ( isBackspace )\r
 945                                                 {\r
 946                                                         var previous, joinWith;\r
 947 \r
 948                                                         // Join a sub list's first line, with the previous visual line in parent.\r
 949                                                         if ( ( previous = path.contains( listNodeNames ) ) &&\r
 950                                                              range.checkBoundaryOfElement( previous, CKEDITOR.START ) &&\r
 951                                                              ( previous = previous.getParent() ) && previous.is( 'li' ) &&\r
 952                                                              ( previous = getSubList( previous ) ) )\r
 953                                                         {\r
 954                                                                 joinWith = previous;\r
 955                                                                 previous = previous.getPrevious( nonEmpty );\r
 956                                                                 // Place cursor before the nested list.\r
 957                                                                 cursor.moveToPosition(\r
 958                                                                         previous && blockBogus( previous ) ? previous : joinWith,\r
 959                                                                         CKEDITOR.POSITION_BEFORE_START );\r
 960                                                         }\r
 961                                                         // Join any line following a list, with the last visual line of the list.\r
 962                                                         else\r
 963                                                         {\r
 964                                                                 walker.range.setStartAt( body, CKEDITOR.POSITION_AFTER_START );\r
 965                                                                 walker.range.setEnd( range.startContainer, range.startOffset );\r
 966                                                                 previous = walker.previous();\r
 967 \r
 968                                                                 if ( previous && previous.type == CKEDITOR.NODE_ELEMENT &&\r
 969                                                                    ( previous.getName() in listNodeNames || previous.is( 'li' ) ) )\r
 970                                                                 {\r
 971                                                                         if ( !previous.is( 'li' ) )\r
 972                                                                         {\r
 973                                                                                 walker.range.selectNodeContents( previous );\r
 974                                                                                 walker.reset();\r
 975                                                                                 walker.evaluator = isTextBlock;\r
 976                                                                                 previous = walker.previous();\r
 977                                                                         }\r
 978 \r
 979                                                                         joinWith = previous;\r
 980                                                                         // Place cursor at the end of previous block.\r
 981                                                                         cursor.moveToElementEditEnd( joinWith );\r
 982                                                                 }\r
 983                                                         }\r
 984 \r
 985                                                         if ( joinWith )\r
 986                                                         {\r
 987                                                                 joinNextLineToCursor( editor, cursor, range );\r
 988                                                                 evt.cancel();\r
 989                                                         }\r
 990                                                         else\r
 991                                                         {\r
 992                                                                 var list = path.contains( listNodeNames ), li;\r
 993                                                                 // Backspace pressed at the start of list outdents the first list item. (#9129)\r
 994                                                                 if ( list && range.checkBoundaryOfElement( list, CKEDITOR.START ) )\r
 995                                                                 {\r
 996                                                                         li = list.getFirst( nonEmpty );\r
 997 \r
 998                                                                         if ( range.checkBoundaryOfElement( li, CKEDITOR.START ) )\r
 999                                                                         {\r
1000                                                                                 previous = list.getPrevious( nonEmpty );\r
1001 \r
1002                                                                                 // Only if the list item contains a sub list, do nothing but\r
1003                                                                                 // simply move cursor backward one character.\r
1004                                                                                 if ( getSubList( li ) )\r
1005                                                                                 {\r
1006                                                                                         if ( previous ) {\r
1007                                                                                                 range.moveToElementEditEnd( previous );\r
1008                                                                                                 range.select();\r
1009                                                                                         }\r
1010 \r
1011                                                                                         evt.cancel();\r
1012                                                                                 }\r
1013                                                                                 else\r
1014                                                                                 {\r
1015                                                                                         editor.execCommand( 'outdent' );\r
1016                                                                                         evt.cancel();\r
1017                                                                                 }\r
1018                                                                         }\r
1019                                                                 }\r
1020                                                         }\r
1021                                                 }\r
1022                                                 else\r
1023                                                 {\r
1024                                                         var next, nextLine;\r
1025                                                         li = range.startContainer.getAscendant( 'li', 1 );\r
1026 \r
1027                                                         if ( li )\r
1028                                                         {\r
1029                                                                 walker.range.setEndAt( body, CKEDITOR.POSITION_BEFORE_END );\r
1030 \r
1031                                                                 var last = li.getLast( nonEmpty );\r
1032                                                                 var block = last && isTextBlock( last ) ? last : li;\r
1033 \r
1034                                                                 // Indicate cursor at the visual end of an list item.\r
1035                                                                 var isAtEnd = 0;\r
1036 \r
1037                                                                 next = walker.next();\r
1038 \r
1039                                                                 // When list item contains a sub list.\r
1040                                                                 if ( next && next.type == CKEDITOR.NODE_ELEMENT &&\r
1041                                                                          next.getName() in listNodeNames\r
1042                                                                          && next.equals( last ) )\r
1043                                                                 {\r
1044                                                                         isAtEnd = 1;\r
1045 \r
1046                                                                         // Move to the first item in sub list.\r
1047                                                                         next = walker.next();\r
1048                                                                 }\r
1049                                                                 // Right at the end of list item.\r
1050                                                                 else if ( range.checkBoundaryOfElement( block, CKEDITOR.END ) )\r
1051                                                                         isAtEnd = 1;\r
1052 \r
1053 \r
1054                                                                 if ( isAtEnd && next )\r
1055                                                                 {\r
1056                                                                         // Put cursor range there.\r
1057                                                                         nextLine = range.clone();\r
1058                                                                         nextLine.moveToElementEditStart( next );\r
1059 \r
1060                                                                         joinNextLineToCursor( editor, cursor, nextLine );\r
1061                                                                         evt.cancel();\r
1062                                                                 }\r
1063                                                         }\r
1064                                                         else\r
1065                                                         {\r
1066                                                                 // Handle Del key pressed before the list.\r
1067                                                                 walker.range.setEndAt( body, CKEDITOR.POSITION_BEFORE_END );\r
1068                                                                 next = walker.next();\r
1069 \r
1070                                                                 if ( next && next.type == CKEDITOR.NODE_ELEMENT &&\r
1071                                                                      next.getName() in listNodeNames )\r
1072                                                                 {\r
1073                                                                         // The start <li>\r
1074                                                                         next = next.getFirst( nonEmpty );\r
1075 \r
1076                                                                         // Simply remove the current empty block, move cursor to the\r
1077                                                                         // subsequent list.\r
1078                                                                         if ( path.block &&\r
1079                                                                              range.checkStartOfBlock() &&\r
1080                                                                              range.checkEndOfBlock() )\r
1081                                                                         {\r
1082                                                                                 path.block.remove();\r
1083                                                                                 range.moveToElementEditStart( next );\r
1084                                                                                 range.select();\r
1085                                                                                 evt.cancel();\r
1086                                                                         }\r
1087 \r
1088                                                                         // Preventing the default (merge behavior), but simply move\r
1089                                                                         // the cursor one character forward if subsequent list item\r
1090                                                                         // contains sub list.\r
1091                                                                         else if ( getSubList( next )  )\r
1092                                                                         {\r
1093                                                                                 range.moveToElementEditStart( next );\r
1094                                                                                 range.select();\r
1095                                                                                 evt.cancel();\r
1096                                                                         }\r
1097                                                                         // Merge the first list item with the current line.\r
1098                                                                         else\r
1099                                                                         {\r
1100                                                                                 nextLine = range.clone();\r
1101                                                                                 nextLine.moveToElementEditStart( next );\r
1102                                                                                 joinNextLineToCursor( editor, cursor, nextLine );\r
1103                                                                                 evt.cancel();\r
1104                                                                         }\r
1105                                                                 }\r
1106                                                         }\r
1107                                                 }\r
1108 \r
1109                                                 // The backspace/del could potentially put cursor at a bad position,\r
1110                                                 // being it handled or not, check immediately the selection to have it fixed.\r
1111                                                 setTimeout( function() { editor.selectionChange( 1 ); } );\r
1112                                         }\r
1113                                 } );\r
1114                 },\r
1115 \r
1116                 afterInit : function ( editor )\r
1117                 {\r
1118                         var dataProcessor = editor.dataProcessor;\r
1119                         if ( dataProcessor )\r
1120                         {\r
1121                                 dataProcessor.dataFilter.addRules( defaultListDataFilterRules );\r
1122                                 dataProcessor.htmlFilter.addRules( defaultListHtmlFilterRules );\r
1123                         }\r
1124                 },\r
1125 \r
1126                 requires : [ 'domiterator' ]\r
1127         } );\r
1128 })();\r