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