fcklistcommands.js
上传用户:dbstep
上传日期:2022-08-06
资源大小:2803k
文件大小:13k
源码类别:
WEB源码(ASP,PHP,...)
开发平台:
ASP/ASPX
- /*
- * FCKeditor - The text editor for Internet - http://www.fckeditor.net
- * Copyright (C) 2003-2009 Frederico Caldeira Knabben
- *
- * == BEGIN LICENSE ==
- *
- * Licensed under the terms of any of the following licenses at your
- * choice:
- *
- * - GNU General Public License Version 2 or later (the "GPL")
- * http://www.gnu.org/licenses/gpl.html
- *
- * - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
- * http://www.gnu.org/licenses/lgpl.html
- *
- * - Mozilla Public License Version 1.1 or later (the "MPL")
- * http://www.mozilla.org/MPL/MPL-1.1.html
- *
- * == END LICENSE ==
- *
- * Implementation for the "Insert/Remove Ordered/Unordered List" commands.
- */
- var FCKListCommand = function( name, tagName )
- {
- this.Name = name ;
- this.TagName = tagName ;
- }
- FCKListCommand.prototype =
- {
- GetState : function()
- {
- // Disabled if not WYSIWYG.
- if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG || ! FCK.EditorWindow )
- return FCK_TRISTATE_DISABLED ;
- // We'll use the style system's convention to determine list state here...
- // If the starting block is a descendant of an <ol> or <ul> node, then we're in a list.
- var startContainer = FCKSelection.GetBoundaryParentElement( true ) ;
- var listNode = startContainer ;
- while ( listNode )
- {
- if ( listNode.nodeName.IEquals( [ 'ul', 'ol' ] ) )
- break ;
- listNode = listNode.parentNode ;
- }
- if ( listNode && listNode.nodeName.IEquals( this.TagName ) )
- return FCK_TRISTATE_ON ;
- else
- return FCK_TRISTATE_OFF ;
- },
- Execute : function()
- {
- FCKUndo.SaveUndoStep() ;
- var doc = FCK.EditorDocument ;
- var range = new FCKDomRange( FCK.EditorWindow ) ;
- range.MoveToSelection() ;
- var state = this.GetState() ;
- // Midas lists rule #1 says we can create a list even in an empty document.
- // But FCKDomRangeIterator wouldn't run if the document is really empty.
- // So create a paragraph if the document is empty and we're going to create a list.
- if ( state == FCK_TRISTATE_OFF )
- {
- FCKDomTools.TrimNode( doc.body ) ;
- if ( ! doc.body.firstChild )
- {
- var paragraph = doc.createElement( 'p' ) ;
- doc.body.appendChild( paragraph ) ;
- range.MoveToNodeContents( paragraph ) ;
- }
- }
- var bookmark = range.CreateBookmark() ;
- // Group the blocks up because there are many cases where multiple lists have to be created,
- // or multiple lists have to be cancelled.
- var listGroups = [] ;
- var markerObj = {} ;
- var iterator = new FCKDomRangeIterator( range ) ;
- var block ;
- iterator.ForceBrBreak = ( state == FCK_TRISTATE_OFF ) ;
- var nextRangeExists = true ;
- var rangeQueue = null ;
- while ( nextRangeExists )
- {
- while ( ( block = iterator.GetNextParagraph() ) )
- {
- var path = new FCKElementPath( block ) ;
- var listNode = null ;
- var processedFlag = false ;
- var blockLimit = path.BlockLimit ;
- // First, try to group by a list ancestor.
- for ( var i = path.Elements.length - 1 ; i >= 0 ; i-- )
- {
- var el = path.Elements[i] ;
- if ( el.nodeName.IEquals( ['ol', 'ul'] ) )
- {
- // If we've encountered a list inside a block limit
- // The last group object of the block limit element should
- // no longer be valid. Since paragraphs after the list
- // should belong to a different group of paragraphs before
- // the list. (Bug #1309)
- if ( blockLimit._FCK_ListGroupObject )
- blockLimit._FCK_ListGroupObject = null ;
- var groupObj = el._FCK_ListGroupObject ;
- if ( groupObj )
- groupObj.contents.push( block ) ;
- else
- {
- groupObj = { 'root' : el, 'contents' : [ block ] } ;
- listGroups.push( groupObj ) ;
- FCKDomTools.SetElementMarker( markerObj, el, '_FCK_ListGroupObject', groupObj ) ;
- }
- processedFlag = true ;
- break ;
- }
- }
- if ( processedFlag )
- continue ;
- // No list ancestor? Group by block limit.
- var root = blockLimit ;
- if ( root._FCK_ListGroupObject )
- root._FCK_ListGroupObject.contents.push( block ) ;
- else
- {
- var groupObj = { 'root' : root, 'contents' : [ block ] } ;
- FCKDomTools.SetElementMarker( markerObj, root, '_FCK_ListGroupObject', groupObj ) ;
- listGroups.push( groupObj ) ;
- }
- }
- if ( FCKBrowserInfo.IsIE )
- nextRangeExists = false ;
- else
- {
- if ( rangeQueue == null )
- {
- rangeQueue = [] ;
- var selectionObject = FCKSelection.GetSelection() ;
- if ( selectionObject && listGroups.length == 0 )
- rangeQueue.push( selectionObject.getRangeAt( 0 ) ) ;
- for ( var i = 1 ; selectionObject && i < selectionObject.rangeCount ; i++ )
- rangeQueue.push( selectionObject.getRangeAt( i ) ) ;
- }
- if ( rangeQueue.length < 1 )
- nextRangeExists = false ;
- else
- {
- var internalRange = FCKW3CRange.CreateFromRange( doc, rangeQueue.shift() ) ;
- range._Range = internalRange ;
- range._UpdateElementInfo() ;
- if ( range.StartNode.nodeName.IEquals( 'td' ) )
- range.SetStart( range.StartNode, 1 ) ;
- if ( range.EndNode.nodeName.IEquals( 'td' ) )
- range.SetEnd( range.EndNode, 2 ) ;
- iterator = new FCKDomRangeIterator( range ) ;
- iterator.ForceBrBreak = ( state == FCK_TRISTATE_OFF ) ;
- }
- }
- }
- // Now we have two kinds of list groups, groups rooted at a list, and groups rooted at a block limit element.
- // We either have to build lists or remove lists, for removing a list does not makes sense when we are looking
- // at the group that's not rooted at lists. So we have three cases to handle.
- var listsCreated = [] ;
- while ( listGroups.length > 0 )
- {
- var groupObj = listGroups.shift() ;
- if ( state == FCK_TRISTATE_OFF )
- {
- if ( groupObj.root.nodeName.IEquals( ['ul', 'ol'] ) )
- this._ChangeListType( groupObj, markerObj, listsCreated ) ;
- else
- this._CreateList( groupObj, listsCreated ) ;
- }
- else if ( state == FCK_TRISTATE_ON && groupObj.root.nodeName.IEquals( ['ul', 'ol'] ) )
- this._RemoveList( groupObj, markerObj ) ;
- }
- // For all new lists created, merge adjacent, same type lists.
- for ( var i = 0 ; i < listsCreated.length ; i++ )
- {
- var listNode = listsCreated[i] ;
- var stopFlag = false ;
- var currentNode = listNode ;
- while ( ! stopFlag )
- {
- currentNode = currentNode.nextSibling ;
- if ( currentNode && currentNode.nodeType == 3 && currentNode.nodeValue.search( /^[nrt ]*$/ ) == 0 )
- continue ;
- stopFlag = true ;
- }
- if ( currentNode && currentNode.nodeName.IEquals( this.TagName ) )
- {
- currentNode.parentNode.removeChild( currentNode ) ;
- while ( currentNode.firstChild )
- listNode.appendChild( currentNode.removeChild( currentNode.firstChild ) ) ;
- }
- stopFlag = false ;
- currentNode = listNode ;
- while ( ! stopFlag )
- {
- currentNode = currentNode.previousSibling ;
- if ( currentNode && currentNode.nodeType == 3 && currentNode.nodeValue.search( /^[nrt ]*$/ ) == 0 )
- continue ;
- stopFlag = true ;
- }
- if ( currentNode && currentNode.nodeName.IEquals( this.TagName ) )
- {
- currentNode.parentNode.removeChild( currentNode ) ;
- while ( currentNode.lastChild )
- listNode.insertBefore( currentNode.removeChild( currentNode.lastChild ),
- listNode.firstChild ) ;
- }
- }
- // Clean up, restore selection and update toolbar button states.
- FCKDomTools.ClearAllMarkers( markerObj ) ;
- range.MoveToBookmark( bookmark ) ;
- range.Select() ;
- FCK.Focus() ;
- FCK.Events.FireEvent( 'OnSelectionChange' ) ;
- },
- _ChangeListType : function( groupObj, markerObj, listsCreated )
- {
- // This case is easy...
- // 1. Convert the whole list into a one-dimensional array.
- // 2. Change the list type by modifying the array.
- // 3. Recreate the whole list by converting the array to a list.
- // 4. Replace the original list with the recreated list.
- var listArray = FCKDomTools.ListToArray( groupObj.root, markerObj ) ;
- var selectedListItems = [] ;
- for ( var i = 0 ; i < groupObj.contents.length ; i++ )
- {
- var itemNode = groupObj.contents[i] ;
- itemNode = FCKTools.GetElementAscensor( itemNode, 'li' ) ;
- if ( ! itemNode || itemNode._FCK_ListItem_Processed )
- continue ;
- selectedListItems.push( itemNode ) ;
- FCKDomTools.SetElementMarker( markerObj, itemNode, '_FCK_ListItem_Processed', true ) ;
- }
- var fakeParent = FCKTools.GetElementDocument( groupObj.root ).createElement( this.TagName ) ;
- for ( var i = 0 ; i < selectedListItems.length ; i++ )
- {
- var listIndex = selectedListItems[i]._FCK_ListArray_Index ;
- listArray[listIndex].parent = fakeParent ;
- }
- var newList = FCKDomTools.ArrayToList( listArray, markerObj ) ;
- for ( var i = 0 ; i < newList.listNode.childNodes.length ; i++ )
- {
- if ( newList.listNode.childNodes[i].nodeName.IEquals( this.TagName ) )
- listsCreated.push( newList.listNode.childNodes[i] ) ;
- }
- groupObj.root.parentNode.replaceChild( newList.listNode, groupObj.root ) ;
- },
- _CreateList : function( groupObj, listsCreated )
- {
- var contents = groupObj.contents ;
- var doc = FCKTools.GetElementDocument( groupObj.root ) ;
- var listContents = [] ;
- // It is possible to have the contents returned by DomRangeIterator to be the same as the root.
- // e.g. when we're running into table cells.
- // In such a case, enclose the childNodes of contents[0] into a <div>.
- if ( contents.length == 1 && contents[0] == groupObj.root )
- {
- var divBlock = doc.createElement( 'div' );
- while ( contents[0].firstChild )
- divBlock.appendChild( contents[0].removeChild( contents[0].firstChild ) ) ;
- contents[0].appendChild( divBlock ) ;
- contents[0] = divBlock ;
- }
- // Calculate the common parent node of all content blocks.
- var commonParent = groupObj.contents[0].parentNode ;
- for ( var i = 0 ; i < contents.length ; i++ )
- commonParent = FCKDomTools.GetCommonParents( commonParent, contents[i].parentNode ).pop() ;
- // We want to insert things that are in the same tree level only, so calculate the contents again
- // by expanding the selected blocks to the same tree level.
- for ( var i = 0 ; i < contents.length ; i++ )
- {
- var contentNode = contents[i] ;
- while ( contentNode.parentNode )
- {
- if ( contentNode.parentNode == commonParent )
- {
- listContents.push( contentNode ) ;
- break ;
- }
- contentNode = contentNode.parentNode ;
- }
- }
- if ( listContents.length < 1 )
- return ;
- // Insert the list to the DOM tree.
- var insertAnchor = listContents[listContents.length - 1].nextSibling ;
- var listNode = doc.createElement( this.TagName ) ;
- listsCreated.push( listNode ) ;
- while ( listContents.length )
- {
- var contentBlock = listContents.shift() ;
- var docFrag = doc.createDocumentFragment() ;
- while ( contentBlock.firstChild )
- docFrag.appendChild( contentBlock.removeChild( contentBlock.firstChild ) ) ;
- contentBlock.parentNode.removeChild( contentBlock ) ;
- var listItem = doc.createElement( 'li' ) ;
- listItem.appendChild( docFrag ) ;
- listNode.appendChild( listItem ) ;
- }
- commonParent.insertBefore( listNode, insertAnchor ) ;
- },
- _RemoveList : function( groupObj, markerObj )
- {
- // This is very much like the change list type operation.
- // Except that we're changing the selected items' indent to -1 in the list array.
- var listArray = FCKDomTools.ListToArray( groupObj.root, markerObj ) ;
- var selectedListItems = [] ;
- for ( var i = 0 ; i < groupObj.contents.length ; i++ )
- {
- var itemNode = groupObj.contents[i] ;
- itemNode = FCKTools.GetElementAscensor( itemNode, 'li' ) ;
- if ( ! itemNode || itemNode._FCK_ListItem_Processed )
- continue ;
- selectedListItems.push( itemNode ) ;
- FCKDomTools.SetElementMarker( markerObj, itemNode, '_FCK_ListItem_Processed', true ) ;
- }
- var lastListIndex = null ;
- for ( var i = 0 ; i < selectedListItems.length ; i++ )
- {
- var listIndex = selectedListItems[i]._FCK_ListArray_Index ;
- listArray[listIndex].indent = -1 ;
- lastListIndex = listIndex ;
- }
- // After cutting parts of the list out with indent=-1, we still have to maintain the array list
- // model's nextItem.indent <= currentItem.indent + 1 invariant. Otherwise the array model of the
- // list cannot be converted back to a real DOM list.
- for ( var i = lastListIndex + 1; i < listArray.length ; i++ )
- {
- if ( listArray[i].indent > listArray[i-1].indent + 1 )
- {
- var indentOffset = listArray[i-1].indent + 1 - listArray[i].indent ;
- var oldIndent = listArray[i].indent ;
- while ( listArray[i] && listArray[i].indent >= oldIndent)
- {
- listArray[i].indent += indentOffset ;
- i++ ;
- }
- i-- ;
- }
- }
- var newList = FCKDomTools.ArrayToList( listArray, markerObj ) ;
- // If groupObj.root is the last element in its parent, or its nextSibling is a <br>, then we should
- // not add a <br> after the final item. So, check for the cases and trim the <br>.
- if ( groupObj.root.nextSibling == null || groupObj.root.nextSibling.nodeName.IEquals( 'br' ) )
- {
- if ( newList.listNode.lastChild.nodeName.IEquals( 'br' ) )
- newList.listNode.removeChild( newList.listNode.lastChild ) ;
- }
- groupObj.root.parentNode.replaceChild( newList.listNode, groupObj.root ) ;
- }
- };