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/source/Plug-in/fck/editor/_source/internals/fcklisthandler.js

http://prosporous.googlecode.com/
JavaScript | 152 lines | 97 code | 21 blank | 34 comment | 31 complexity | a3a20c60916bb15c96ca614634c0a31d MD5 | raw file
  1/*
  2 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
  3 * Copyright (C) 2003-2007 Frederico Caldeira Knabben
  4 *
  5 * == BEGIN LICENSE ==
  6 *
  7 * Licensed under the terms of any of the following licenses at your
  8 * choice:
  9 *
 10 *  - GNU General Public License Version 2 or later (the "GPL")
 11 *    http://www.gnu.org/licenses/gpl.html
 12 *
 13 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 14 *    http://www.gnu.org/licenses/lgpl.html
 15 *
 16 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 17 *    http://www.mozilla.org/MPL/MPL-1.1.html
 18 *
 19 * == END LICENSE ==
 20 *
 21 * Tool object to manage HTML lists items (UL, OL and LI).
 22 */
 23
 24var FCKListHandler =
 25{
 26	OutdentListItem : function( listItem )
 27	{
 28		var eParent = listItem.parentNode ;
 29
 30		// It may happen that a LI is not in a UL or OL (Orphan).
 31		if ( eParent.tagName.toUpperCase().Equals( 'UL','OL' ) )
 32		{
 33			var oDocument = FCKTools.GetElementDocument( listItem ) ;
 34			var oDogFrag = new FCKDocumentFragment( oDocument ) ;
 35
 36			// All children and successive siblings will be moved to a a DocFrag.
 37			var eNextSiblings = oDogFrag.RootNode ;
 38			var eHasLiSibling = false ;
 39
 40			// If we have nested lists inside it, let's move it to the list of siblings.
 41			var eChildList = FCKDomTools.GetFirstChild( listItem, ['UL','OL'] ) ;
 42			if ( eChildList )
 43			{
 44				eHasLiSibling = true ;
 45
 46				var eChild ;
 47				// The extra () is to avoid a warning with strict error checking. This is ok.
 48				while ( (eChild = eChildList.firstChild) )
 49					eNextSiblings.appendChild( eChildList.removeChild( eChild ) ) ;
 50
 51				FCKDomTools.RemoveNode( eChildList ) ;
 52			}
 53
 54			// Move all successive siblings.
 55			var eSibling ;
 56			var eHasSuccessiveLiSibling = false ;
 57			// The extra () is to avoid a warning with strict error checking. This is ok.
 58			while ( (eSibling = listItem.nextSibling) )
 59			{
 60				if ( !eHasLiSibling && eSibling.nodeType == 1 && eSibling.nodeName.toUpperCase() == 'LI' )
 61					eHasSuccessiveLiSibling = eHasLiSibling = true ;
 62
 63				eNextSiblings.appendChild( eSibling.parentNode.removeChild( eSibling ) ) ;
 64
 65				// If a sibling is a incorrectly nested UL or OL, consider only its children.
 66				if ( !eHasSuccessiveLiSibling && eSibling.nodeType == 1 && eSibling.nodeName.toUpperCase().Equals( 'UL','OL' ) )
 67					FCKDomTools.RemoveNode( eSibling, true ) ;
 68			}
 69
 70			// If we are in a list chain.
 71			var sParentParentTag = eParent.parentNode.tagName.toUpperCase() ;
 72			var bWellNested = ( sParentParentTag == 'LI' ) ;
 73			if ( bWellNested || sParentParentTag.Equals( 'UL','OL' ) )
 74			{
 75				if ( eHasLiSibling )
 76				{
 77					var eChildList = eParent.cloneNode( false ) ;
 78					oDogFrag.AppendTo( eChildList ) ;
 79					listItem.appendChild( eChildList ) ;
 80				}
 81				else if ( bWellNested )
 82					oDogFrag.InsertAfterNode( eParent.parentNode ) ;
 83				else
 84					oDogFrag.InsertAfterNode( eParent ) ;
 85
 86				// Move the LI after its parent.parentNode (the upper LI in the hierarchy).
 87				if ( bWellNested )
 88					FCKDomTools.InsertAfterNode( eParent.parentNode, eParent.removeChild( listItem ) ) ;
 89				else
 90					FCKDomTools.InsertAfterNode( eParent, eParent.removeChild( listItem ) ) ;
 91			}
 92			else
 93			{
 94				if ( eHasLiSibling )
 95				{
 96					var eNextList = eParent.cloneNode( false ) ;
 97					oDogFrag.AppendTo( eNextList ) ;
 98					FCKDomTools.InsertAfterNode( eParent, eNextList ) ;
 99				}
100
101				var eBlock = oDocument.createElement( FCKConfig.EnterMode == 'p' ? 'p' : 'div' ) ;
102				FCKDomTools.MoveChildren( eParent.removeChild( listItem ), eBlock ) ;
103				FCKDomTools.InsertAfterNode( eParent, eBlock ) ;
104
105				if ( FCKConfig.EnterMode == 'br' )
106				{
107					// We need the bogus to make it work properly. In Gecko, we
108					// need it before the new block, on IE, after it.
109					if ( FCKBrowserInfo.IsGecko )
110						eBlock.parentNode.insertBefore( FCKTools.CreateBogusBR( oDocument ), eBlock ) ;
111					else
112						FCKDomTools.InsertAfterNode( eBlock, FCKTools.CreateBogusBR( oDocument ) ) ;
113
114					FCKDomTools.RemoveNode( eBlock, true ) ;
115				}
116			}
117
118			if ( this.CheckEmptyList( eParent ) )
119				FCKDomTools.RemoveNode( eParent, true ) ;
120		}
121	},
122
123	CheckEmptyList : function( listElement )
124	{
125		return ( FCKDomTools.GetFirstChild( listElement, 'LI' ) == null ) ;
126	},
127
128	// Check if the list has contents (excluding nested lists).
129	CheckListHasContents : function( listElement )
130	{
131		var eChildNode = listElement.firstChild ;
132
133		while ( eChildNode )
134		{
135			switch ( eChildNode.nodeType )
136			{
137				case 1 :
138					if ( !eChildNode.nodeName.IEquals( 'UL','LI' ) )
139						return true ;
140					break ;
141
142				case 3 :
143					if ( eChildNode.nodeValue.Trim().length > 0 )
144						return true ;
145			}
146
147			eChildNode = eChildNode.nextSibling ;
148		}
149
150		return false ;
151	}
152} ;