2 Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.
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3 For licensing, see LICENSE.html or http://ckeditor.com/license
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7 * @file Insert and remove numbered and bulleted lists.
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12 var listNodeNames = { ol : 1, ul : 1 },
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13 emptyTextRegex = /^[\n\r\t ]*$/;
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15 CKEDITOR.plugins.list = {
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17 * Convert a DOM list tree into a data structure that is easier to
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18 * manipulate. This operation should be non-intrusive in the sense that it
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19 * does not change the DOM tree, with the exception that it may add some
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20 * markers to the list item nodes when database is specified.
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22 listToArray : function( listNode, database, baseArray, baseIndentLevel, grandparentNode )
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24 if ( !listNodeNames[ listNode.getName() ] )
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27 if ( !baseIndentLevel )
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28 baseIndentLevel = 0;
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32 // Iterate over all list items to and look for inner lists.
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33 for ( var i = 0, count = listNode.getChildCount() ; i < count ; i++ )
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35 var listItem = listNode.getChild( i );
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37 // It may be a text node or some funny stuff.
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38 if ( listItem.$.nodeName.toLowerCase() != 'li' )
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41 var itemObj = { 'parent' : listNode, indent : baseIndentLevel, element : listItem, contents : [] };
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42 if ( !grandparentNode )
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44 itemObj.grandparent = listNode.getParent();
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45 if ( itemObj.grandparent && itemObj.grandparent.$.nodeName.toLowerCase() == 'li' )
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46 itemObj.grandparent = itemObj.grandparent.getParent();
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49 itemObj.grandparent = grandparentNode;
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52 CKEDITOR.dom.element.setMarker( database, listItem, 'listarray_index', baseArray.length );
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53 baseArray.push( itemObj );
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55 for ( var j = 0, itemChildCount = listItem.getChildCount(), child; j < itemChildCount ; j++ )
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57 child = listItem.getChild( j );
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58 if ( child.type == CKEDITOR.NODE_ELEMENT && listNodeNames[ child.getName() ] )
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59 // Note the recursion here, it pushes inner list items with
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60 // +1 indentation in the correct order.
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61 CKEDITOR.plugins.list.listToArray( child, database, baseArray, baseIndentLevel + 1, itemObj.grandparent );
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63 itemObj.contents.push( child );
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69 // Convert our internal representation of a list back to a DOM forest.
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70 arrayToList : function( listArray, database, baseIndex, paragraphMode, dir )
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74 if ( !listArray || listArray.length < baseIndex + 1 )
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76 var doc = listArray[ baseIndex ].parent.getDocument(),
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77 retval = new CKEDITOR.dom.documentFragment( doc ),
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79 currentIndex = baseIndex,
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80 indentLevel = Math.max( listArray[ baseIndex ].indent, 0 ),
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81 currentListItem = null,
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82 paragraphName = ( paragraphMode == CKEDITOR.ENTER_P ? 'p' : 'div' );
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85 var item = listArray[ currentIndex ];
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86 if ( item.indent == indentLevel )
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88 if ( !rootNode || listArray[ currentIndex ].parent.getName() != rootNode.getName() )
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90 rootNode = listArray[ currentIndex ].parent.clone( false, 1 );
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91 retval.append( rootNode );
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93 currentListItem = rootNode.append( item.element.clone( 0, 1 ) );
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94 for ( var i = 0 ; i < item.contents.length ; i++ )
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95 currentListItem.append( item.contents[i].clone( 1, 1 ) );
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98 else if ( item.indent == Math.max( indentLevel, 0 ) + 1 )
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100 var listData = CKEDITOR.plugins.list.arrayToList( listArray, null, currentIndex, paragraphMode );
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101 currentListItem.append( listData.listNode );
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102 currentIndex = listData.nextIndex;
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104 else if ( item.indent == -1 && !baseIndex && item.grandparent )
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107 if ( listNodeNames[ item.grandparent.getName() ] )
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108 currentListItem = item.element.clone( false, true );
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111 // Create completely new blocks here.
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112 if ( dir || item.element.hasAttributes() ||
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113 ( paragraphMode != CKEDITOR.ENTER_BR && item.grandparent.getName() != 'td' ) )
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115 currentListItem = doc.createElement( paragraphName );
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116 item.element.copyAttributes( currentListItem, { type:1, value:1 } );
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117 dir && currentListItem.setAttribute( 'dir', dir );
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119 // There might be a case where there are no attributes in the element after all
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120 // (i.e. when "type" or "value" are the only attributes set). In this case, if enterMode = BR,
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121 // the current item should be a fragment.
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122 if ( !dir && paragraphMode == CKEDITOR.ENTER_BR && !currentListItem.hasAttributes() )
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123 currentListItem = new CKEDITOR.dom.documentFragment( doc );
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126 currentListItem = new CKEDITOR.dom.documentFragment( doc );
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129 for ( i = 0 ; i < item.contents.length ; i++ )
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130 currentListItem.append( item.contents[i].clone( 1, 1 ) );
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132 if ( currentListItem.type == CKEDITOR.NODE_DOCUMENT_FRAGMENT
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133 && currentIndex != listArray.length - 1 )
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135 if ( currentListItem.getLast()
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136 && currentListItem.getLast().type == CKEDITOR.NODE_ELEMENT
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137 && currentListItem.getLast().getAttribute( 'type' ) == '_moz' )
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138 currentListItem.getLast().remove();
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139 currentListItem.appendBogus();
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142 if ( currentListItem.type == CKEDITOR.NODE_ELEMENT &&
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143 currentListItem.getName() == paragraphName &&
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144 currentListItem.$.firstChild )
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146 currentListItem.trim();
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147 var firstChild = currentListItem.getFirst();
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148 if ( firstChild.type == CKEDITOR.NODE_ELEMENT && firstChild.isBlockBoundary() )
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150 var tmp = new CKEDITOR.dom.documentFragment( doc );
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151 currentListItem.moveChildren( tmp );
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152 currentListItem = tmp;
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156 var currentListItemName = currentListItem.$.nodeName.toLowerCase();
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157 if ( !CKEDITOR.env.ie && ( currentListItemName == 'div' || currentListItemName == 'p' ) )
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158 currentListItem.appendBogus();
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159 retval.append( currentListItem );
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166 if ( listArray.length <= currentIndex || Math.max( listArray[ currentIndex ].indent, 0 ) < indentLevel )
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170 // Clear marker attributes for the new list tree made of cloned nodes, if any.
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173 var currentNode = retval.getFirst();
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174 while ( currentNode )
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176 if ( currentNode.type == CKEDITOR.NODE_ELEMENT )
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177 CKEDITOR.dom.element.clearMarkers( database, currentNode );
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178 currentNode = currentNode.getNextSourceNode();
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182 return { listNode : retval, nextIndex : currentIndex };
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186 function setState( editor, state )
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188 editor.getCommand( this.name ).setState( state );
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191 function onSelectionChange( evt )
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193 var path = evt.data.path,
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194 blockLimit = path.blockLimit,
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195 elements = path.elements,
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198 // Grouping should only happen under blockLimit.(#3940).
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199 for ( var i = 0 ; i < elements.length && ( element = elements[ i ] )
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200 && !element.equals( blockLimit ); i++ )
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202 if ( listNodeNames[ elements[i].getName() ] )
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204 return setState.call( this, evt.editor,
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205 this.type == elements[i].getName() ? CKEDITOR.TRISTATE_ON : CKEDITOR.TRISTATE_OFF );
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209 return setState.call( this, evt.editor, CKEDITOR.TRISTATE_OFF );
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212 function changeListType( editor, groupObj, database, listsCreated )
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214 // This case is easy...
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215 // 1. Convert the whole list into a one-dimensional array.
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216 // 2. Change the list type by modifying the array.
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217 // 3. Recreate the whole list by converting the array to a list.
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218 // 4. Replace the original list with the recreated list.
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219 var listArray = CKEDITOR.plugins.list.listToArray( groupObj.root, database ),
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220 selectedListItems = [];
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222 for ( var i = 0 ; i < groupObj.contents.length ; i++ )
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224 var itemNode = groupObj.contents[i];
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225 itemNode = itemNode.getAscendant( 'li', true );
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226 if ( !itemNode || itemNode.getCustomData( 'list_item_processed' ) )
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228 selectedListItems.push( itemNode );
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229 CKEDITOR.dom.element.setMarker( database, itemNode, 'list_item_processed', true );
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232 var root = groupObj.root,
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233 fakeParent = root.getDocument().createElement( this.type );
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234 // Copy all attributes, except from 'start' and 'type'.
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235 root.copyAttributes( fakeParent, { start : 1, type : 1 } );
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236 // The list-style-type property should be ignored.
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237 fakeParent.removeStyle( 'list-style-type' );
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239 for ( i = 0 ; i < selectedListItems.length ; i++ )
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241 var listIndex = selectedListItems[i].getCustomData( 'listarray_index' );
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242 listArray[listIndex].parent = fakeParent;
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244 var newList = CKEDITOR.plugins.list.arrayToList( listArray, database, null, editor.config.enterMode );
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245 var child, length = newList.listNode.getChildCount();
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246 for ( i = 0 ; i < length && ( child = newList.listNode.getChild( i ) ) ; i++ )
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248 if ( child.getName() == this.type )
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249 listsCreated.push( child );
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251 newList.listNode.replace( groupObj.root );
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254 var headerTagRegex = /^h[1-6]$/;
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256 function createList( editor, groupObj, listsCreated )
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258 var contents = groupObj.contents,
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259 doc = groupObj.root.getDocument(),
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262 // It is possible to have the contents returned by DomRangeIterator to be the same as the root.
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263 // e.g. when we're running into table cells.
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264 // In such a case, enclose the childNodes of contents[0] into a <div>.
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265 if ( contents.length == 1 && contents[0].equals( groupObj.root ) )
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267 var divBlock = doc.createElement( 'div' );
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268 contents[0].moveChildren && contents[0].moveChildren( divBlock );
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269 contents[0].append( divBlock );
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270 contents[0] = divBlock;
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273 // Calculate the common parent node of all content blocks.
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274 var commonParent = groupObj.contents[0].getParent();
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275 for ( var i = 0 ; i < contents.length ; i++ )
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276 commonParent = commonParent.getCommonAncestor( contents[i].getParent() );
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278 var useComputedState = editor.config.useComputedState,
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279 listDir, explicitDirection;
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281 useComputedState = useComputedState === undefined || useComputedState;
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283 // We want to insert things that are in the same tree level only, so calculate the contents again
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284 // by expanding the selected blocks to the same tree level.
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285 for ( i = 0 ; i < contents.length ; i++ )
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287 var contentNode = contents[i],
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289 while ( ( parentNode = contentNode.getParent() ) )
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291 if ( parentNode.equals( commonParent ) )
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293 listContents.push( contentNode );
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295 // Determine the lists's direction.
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296 if ( !explicitDirection && contentNode.getDirection() )
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297 explicitDirection = 1;
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299 var itemDir = contentNode.getDirection( useComputedState );
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301 if ( listDir !== null )
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303 // If at least one LI have a different direction than current listDir, we can't have listDir.
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304 if ( listDir && listDir != itemDir )
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312 contentNode = parentNode;
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316 if ( listContents.length < 1 )
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319 // Insert the list to the DOM tree.
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320 var insertAnchor = listContents[ listContents.length - 1 ].getNext(),
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321 listNode = doc.createElement( this.type );
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323 listsCreated.push( listNode );
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325 var contentBlock, listItem;
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327 while ( listContents.length )
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329 contentBlock = listContents.shift();
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330 listItem = doc.createElement( 'li' );
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332 // Preserve preformat block and heading structure when converting to list item. (#5335) (#5271)
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333 if ( contentBlock.is( 'pre' ) || headerTagRegex.test( contentBlock.getName() ) )
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334 contentBlock.appendTo( listItem );
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337 // Remove DIR attribute if it was merged into list root.
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338 if ( listDir && contentBlock.getDirection() )
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340 contentBlock.removeStyle( 'direction' );
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341 contentBlock.removeAttribute( 'dir' );
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344 contentBlock.copyAttributes( listItem );
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345 contentBlock.moveChildren( listItem );
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346 contentBlock.remove();
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349 listItem.appendTo( listNode );
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352 // Apply list root dir only if it has been explicitly declared.
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353 if ( listDir && explicitDirection )
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354 listNode.setAttribute( 'dir', listDir );
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356 if ( insertAnchor )
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357 listNode.insertBefore( insertAnchor );
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359 listNode.appendTo( commonParent );
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362 function removeList( editor, groupObj, database )
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364 // This is very much like the change list type operation.
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365 // Except that we're changing the selected items' indent to -1 in the list array.
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366 var listArray = CKEDITOR.plugins.list.listToArray( groupObj.root, database ),
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367 selectedListItems = [];
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369 for ( var i = 0 ; i < groupObj.contents.length ; i++ )
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371 var itemNode = groupObj.contents[i];
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372 itemNode = itemNode.getAscendant( 'li', true );
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373 if ( !itemNode || itemNode.getCustomData( 'list_item_processed' ) )
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375 selectedListItems.push( itemNode );
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376 CKEDITOR.dom.element.setMarker( database, itemNode, 'list_item_processed', true );
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379 var lastListIndex = null;
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380 for ( i = 0 ; i < selectedListItems.length ; i++ )
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382 var listIndex = selectedListItems[i].getCustomData( 'listarray_index' );
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383 listArray[listIndex].indent = -1;
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384 lastListIndex = listIndex;
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387 // After cutting parts of the list out with indent=-1, we still have to maintain the array list
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388 // model's nextItem.indent <= currentItem.indent + 1 invariant. Otherwise the array model of the
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389 // list cannot be converted back to a real DOM list.
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390 for ( i = lastListIndex + 1 ; i < listArray.length ; i++ )
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392 if ( listArray[i].indent > listArray[i-1].indent + 1 )
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394 var indentOffset = listArray[i-1].indent + 1 - listArray[i].indent;
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395 var oldIndent = listArray[i].indent;
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396 while ( listArray[i] && listArray[i].indent >= oldIndent )
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398 listArray[i].indent += indentOffset;
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405 var newList = CKEDITOR.plugins.list.arrayToList( listArray, database, null, editor.config.enterMode,
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406 groupObj.root.getAttribute( 'dir' ) );
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408 // Compensate <br> before/after the list node if the surrounds are non-blocks.(#3836)
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409 var docFragment = newList.listNode, boundaryNode, siblingNode;
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410 function compensateBrs( isStart )
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412 if ( ( boundaryNode = docFragment[ isStart ? 'getFirst' : 'getLast' ]() )
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413 && !( boundaryNode.is && boundaryNode.isBlockBoundary() )
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414 && ( siblingNode = groupObj.root[ isStart ? 'getPrevious' : 'getNext' ]
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415 ( CKEDITOR.dom.walker.whitespaces( true ) ) )
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416 && !( siblingNode.is && siblingNode.isBlockBoundary( { br : 1 } ) ) )
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417 editor.document.createElement( 'br' )[ isStart ? 'insertBefore' : 'insertAfter' ]( boundaryNode );
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419 compensateBrs( true );
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422 docFragment.replace( groupObj.root );
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425 function listCommand( name, type )
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431 listCommand.prototype = {
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432 exec : function( editor )
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436 var doc = editor.document,
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437 selection = editor.getSelection(),
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438 ranges = selection && selection.getRanges( true );
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440 // There should be at least one selected range.
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441 if ( !ranges || ranges.length < 1 )
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444 // Midas lists rule #1 says we can create a list even in an empty document.
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445 // But DOM iterator wouldn't run if the document is really empty.
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446 // So create a paragraph if the document is empty and we're going to create a list.
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447 if ( this.state == CKEDITOR.TRISTATE_OFF )
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449 var body = doc.getBody();
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451 if ( !body.getFirst() )
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453 var paragraph = doc.createElement( editor.config.enterMode == CKEDITOR.ENTER_P ? 'p' :
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454 ( editor.config.enterMode == CKEDITOR.ENTER_DIV ? 'div' : 'br' ) );
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455 paragraph.appendTo( body );
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456 ranges = new CKEDITOR.dom.rangeList( [ new CKEDITOR.dom.range( doc ) ] );
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457 // IE exception on inserting anything when anchor inside <br>.
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458 if ( paragraph.is( 'br' ) )
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460 ranges[ 0 ].setStartBefore( paragraph );
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461 ranges[ 0 ].setEndAfter( paragraph );
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464 ranges[ 0 ].selectNodeContents( paragraph );
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465 selection.selectRanges( ranges );
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467 // Maybe a single range there enclosing the whole list,
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468 // turn on the list state manually(#4129).
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471 var range = ranges.length == 1 && ranges[ 0 ],
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472 enclosedNode = range && range.getEnclosedNode();
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473 if ( enclosedNode && enclosedNode.is
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474 && this.type == enclosedNode.getName() )
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475 setState.call( this, editor, CKEDITOR.TRISTATE_ON );
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479 var bookmarks = selection.createBookmarks( true );
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481 // Group the blocks up because there are many cases where multiple lists have to be created,
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482 // or multiple lists have to be cancelled.
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483 var listGroups = [],
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485 rangeIterator = ranges.createIterator(),
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488 while ( ( range = rangeIterator.getNextRange() ) && ++index )
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490 var boundaryNodes = range.getBoundaryNodes(),
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491 startNode = boundaryNodes.startNode,
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492 endNode = boundaryNodes.endNode;
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494 if ( startNode.type == CKEDITOR.NODE_ELEMENT && startNode.getName() == 'td' )
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495 range.setStartAt( boundaryNodes.startNode, CKEDITOR.POSITION_AFTER_START );
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497 if ( endNode.type == CKEDITOR.NODE_ELEMENT && endNode.getName() == 'td' )
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498 range.setEndAt( boundaryNodes.endNode, CKEDITOR.POSITION_BEFORE_END );
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500 var iterator = range.createIterator(),
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503 iterator.forceBrBreak = ( this.state == CKEDITOR.TRISTATE_OFF );
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505 while ( ( block = iterator.getNextParagraph() ) )
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507 // Avoid duplicate blocks get processed across ranges.
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508 if( block.getCustomData( 'list_block' ) )
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511 CKEDITOR.dom.element.setMarker( database, block, 'list_block', 1 );
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513 var path = new CKEDITOR.dom.elementPath( block ),
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514 pathElements = path.elements,
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515 pathElementsCount = pathElements.length,
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518 blockLimit = path.blockLimit,
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521 // First, try to group by a list ancestor.
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522 for ( var i = pathElementsCount - 1; i >= 0 && ( element = pathElements[ i ] ); i-- )
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524 if ( listNodeNames[ element.getName() ]
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525 && blockLimit.contains( element ) ) // Don't leak outside block limit (#3940).
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527 // If we've encountered a list inside a block limit
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528 // The last group object of the block limit element should
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529 // no longer be valid. Since paragraphs after the list
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530 // should belong to a different group of paragraphs before
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531 // the list. (Bug #1309)
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532 blockLimit.removeCustomData( 'list_group_object_' + index );
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534 var groupObj = element.getCustomData( 'list_group_object' );
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536 groupObj.contents.push( block );
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539 groupObj = { root : element, contents : [ block ] };
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540 listGroups.push( groupObj );
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541 CKEDITOR.dom.element.setMarker( database, element, 'list_group_object', groupObj );
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548 if ( processedFlag )
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551 // No list ancestor? Group by block limit, but don't mix contents from different ranges.
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552 var root = blockLimit;
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553 if ( root.getCustomData( 'list_group_object_' + index ) )
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554 root.getCustomData( 'list_group_object_' + index ).contents.push( block );
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557 groupObj = { root : root, contents : [ block ] };
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558 CKEDITOR.dom.element.setMarker( database, root, 'list_group_object_' + index, groupObj );
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559 listGroups.push( groupObj );
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564 // Now we have two kinds of list groups, groups rooted at a list, and groups rooted at a block limit element.
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565 // We either have to build lists or remove lists, for removing a list does not makes sense when we are looking
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566 // at the group that's not rooted at lists. So we have three cases to handle.
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567 var listsCreated = [];
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568 while ( listGroups.length > 0 )
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570 groupObj = listGroups.shift();
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571 if ( this.state == CKEDITOR.TRISTATE_OFF )
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573 if ( listNodeNames[ groupObj.root.getName() ] )
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574 changeListType.call( this, editor, groupObj, database, listsCreated );
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576 createList.call( this, editor, groupObj, listsCreated );
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578 else if ( this.state == CKEDITOR.TRISTATE_ON && listNodeNames[ groupObj.root.getName() ] )
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579 removeList.call( this, editor, groupObj, database );
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582 // For all new lists created, merge adjacent, same type lists.
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583 for ( i = 0 ; i < listsCreated.length ; i++ )
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585 listNode = listsCreated[i];
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586 var mergeSibling, listCommand = this;
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587 ( mergeSibling = function( rtl ){
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589 var sibling = listNode[ rtl ?
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590 'getPrevious' : 'getNext' ]( CKEDITOR.dom.walker.whitespaces( true ) );
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591 if ( sibling && sibling.getName &&
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592 sibling.getName() == listCommand.type )
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595 // Move children order by merge direction.(#3820)
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596 sibling.moveChildren( listNode, rtl );
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602 // Clean up, restore selection and update toolbar button states.
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603 CKEDITOR.dom.element.clearAllMarkers( database );
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604 selection.selectBookmarks( bookmarks );
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609 var dtd = CKEDITOR.dtd;
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610 var tailNbspRegex = /[\t\r\n ]*(?: |\xa0)$/;
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612 function indexOfFirstChildElement( element, tagNameList )
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615 children = element.children,
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616 length = children.length;
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618 for ( var i = 0 ; i < length ; i++ )
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620 child = children[ i ];
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621 if ( child.name && ( child.name in tagNameList ) )
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628 function getExtendNestedListFilter( isHtmlFilter )
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630 // An element filter function that corrects nested list start in an empty
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631 // list item for better displaying/outputting. (#3165)
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632 return function( listItem )
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634 var children = listItem.children,
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635 firstNestedListIndex = indexOfFirstChildElement( listItem, dtd.$list ),
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636 firstNestedList = children[ firstNestedListIndex ],
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637 nodeBefore = firstNestedList && firstNestedList.previous,
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641 && ( nodeBefore.name && nodeBefore.name == 'br'
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642 || nodeBefore.value && ( tailNbspmatch = nodeBefore.value.match( tailNbspRegex ) ) ) )
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644 var fillerNode = nodeBefore;
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646 // Always use 'nbsp' as filler node if we found a nested list appear
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647 // in front of a list item.
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648 if ( !( tailNbspmatch && tailNbspmatch.index ) && fillerNode == children[ 0 ] )
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649 children[ 0 ] = ( isHtmlFilter || CKEDITOR.env.ie ) ?
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650 new CKEDITOR.htmlParser.text( '\xa0' ) :
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651 new CKEDITOR.htmlParser.element( 'br', {} );
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653 // Otherwise the filler is not needed anymore.
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654 else if ( fillerNode.name == 'br' )
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655 children.splice( firstNestedListIndex - 1, 1 );
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657 fillerNode.value = fillerNode.value.replace( tailNbspRegex, '' );
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663 var defaultListDataFilterRules = { elements : {} };
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664 for ( var i in dtd.$listItem )
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665 defaultListDataFilterRules.elements[ i ] = getExtendNestedListFilter();
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667 var defaultListHtmlFilterRules = { elements : {} };
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668 for ( i in dtd.$listItem )
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669 defaultListHtmlFilterRules.elements[ i ] = getExtendNestedListFilter( true );
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671 CKEDITOR.plugins.add( 'list',
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673 init : function( editor )
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675 // Register commands.
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676 var numberedListCommand = new listCommand( 'numberedlist', 'ol' ),
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677 bulletedListCommand = new listCommand( 'bulletedlist', 'ul' );
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678 editor.addCommand( 'numberedlist', numberedListCommand );
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679 editor.addCommand( 'bulletedlist', bulletedListCommand );
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681 // Register the toolbar button.
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682 editor.ui.addButton( 'NumberedList',
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684 label : editor.lang.numberedlist,
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685 command : 'numberedlist'
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687 editor.ui.addButton( 'BulletedList',
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689 label : editor.lang.bulletedlist,
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690 command : 'bulletedlist'
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693 // Register the state changing handlers.
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694 editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, numberedListCommand ) );
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695 editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, bulletedListCommand ) );
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698 afterInit : function ( editor )
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700 var dataProcessor = editor.dataProcessor;
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701 if ( dataProcessor )
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703 dataProcessor.dataFilter.addRules( defaultListDataFilterRules );
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704 dataProcessor.htmlFilter.addRules( defaultListHtmlFilterRules );
\r
708 requires : [ 'domiterator' ]
\r