/*
|
* 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 ==
|
*
|
* FCKIndentCommand Class: controls block indentation.
|
*/
|
|
var FCKIndentCommand = function( name, offset )
|
{
|
this.Name = name ;
|
this.Offset = offset ;
|
this.IndentCSSProperty = FCKConfig.ContentLangDirection.IEquals( 'ltr' ) ? 'marginLeft' : 'marginRight' ;
|
}
|
|
FCKIndentCommand._InitIndentModeParameters = function()
|
{
|
if ( FCKConfig.IndentClasses && FCKConfig.IndentClasses.length > 0 )
|
{
|
this._UseIndentClasses = true ;
|
this._IndentClassMap = {} ;
|
for ( var i = 0 ; i < FCKConfig.IndentClasses.length ;i++ )
|
this._IndentClassMap[FCKConfig.IndentClasses[i]] = i + 1 ;
|
this._ClassNameRegex = new RegExp( '(?:^|\\s+)(' + FCKConfig.IndentClasses.join( '|' ) + ')(?=$|\\s)' ) ;
|
}
|
else
|
this._UseIndentClasses = false ;
|
}
|
|
|
FCKIndentCommand.prototype =
|
{
|
Execute : function()
|
{
|
// Save an undo snapshot before doing anything.
|
FCKUndo.SaveUndoStep() ;
|
|
var range = new FCKDomRange( FCK.EditorWindow ) ;
|
range.MoveToSelection() ;
|
var bookmark = range.CreateBookmark() ;
|
|
// Two cases to handle here: either we're in a list, or not.
|
// If we're in a list, then the indent/outdent operations would be done on the list nodes.
|
// Otherwise, apply the operation on the nearest block nodes.
|
var nearestListBlock = FCKDomTools.GetCommonParentNode( range.StartNode || range.StartContainer ,
|
range.EndNode || range.EndContainer,
|
['ul', 'ol'] ) ;
|
if ( nearestListBlock )
|
this._IndentList( range, nearestListBlock ) ;
|
else
|
this._IndentBlock( range ) ;
|
|
range.MoveToBookmark( bookmark ) ;
|
range.Select() ;
|
|
FCK.Focus() ;
|
FCK.Events.FireEvent( 'OnSelectionChange' ) ;
|
},
|
|
GetState : function()
|
{
|
// Disabled if not WYSIWYG.
|
if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG || ! FCK.EditorWindow )
|
return FCK_TRISTATE_DISABLED ;
|
|
// Initialize parameters if not already initialzed.
|
if ( FCKIndentCommand._UseIndentClasses == undefined )
|
FCKIndentCommand._InitIndentModeParameters() ;
|
|
// If we're not in a list, and the starting block's indentation is zero, and the current
|
// command is the outdent command, then we should return FCK_TRISTATE_DISABLED.
|
var startContainer = FCKSelection.GetBoundaryParentElement( true ) ;
|
var endContainer = FCKSelection.GetBoundaryParentElement( false ) ;
|
var listNode = FCKDomTools.GetCommonParentNode( startContainer, endContainer, ['ul','ol'] ) ;
|
|
if ( listNode )
|
{
|
if ( this.Name.IEquals( 'outdent' ) )
|
return FCK_TRISTATE_OFF ;
|
var firstItem = FCKTools.GetElementAscensor( startContainer, 'li' ) ;
|
if ( !firstItem || !firstItem.previousSibling )
|
return FCK_TRISTATE_DISABLED ;
|
return FCK_TRISTATE_OFF ;
|
}
|
if ( ! FCKIndentCommand._UseIndentClasses && this.Name.IEquals( 'indent' ) )
|
return FCK_TRISTATE_OFF;
|
|
var path = new FCKElementPath( startContainer ) ;
|
var firstBlock = path.Block || path.BlockLimit ;
|
if ( !firstBlock )
|
return FCK_TRISTATE_DISABLED ;
|
|
if ( FCKIndentCommand._UseIndentClasses )
|
{
|
var indentClass = firstBlock.className.match( FCKIndentCommand._ClassNameRegex ) ;
|
var indentStep = 0 ;
|
if ( indentClass != null )
|
{
|
indentClass = indentClass[1] ;
|
indentStep = FCKIndentCommand._IndentClassMap[indentClass] ;
|
}
|
if ( ( this.Name == 'outdent' && indentStep == 0 ) ||
|
( this.Name == 'indent' && indentStep == FCKConfig.IndentClasses.length ) )
|
return FCK_TRISTATE_DISABLED ;
|
return FCK_TRISTATE_OFF ;
|
}
|
else
|
{
|
var indent = parseInt( firstBlock.style[this.IndentCSSProperty], 10 ) ;
|
if ( isNaN( indent ) )
|
indent = 0 ;
|
if ( indent <= 0 )
|
return FCK_TRISTATE_DISABLED ;
|
return FCK_TRISTATE_OFF ;
|
}
|
},
|
|
_IndentBlock : function( range )
|
{
|
var iterator = new FCKDomRangeIterator( range ) ;
|
iterator.EnforceRealBlocks = true ;
|
|
range.Expand( 'block_contents' ) ;
|
var commonParents = FCKDomTools.GetCommonParents( range.StartContainer, range.EndContainer ) ;
|
var nearestParent = commonParents[commonParents.length - 1] ;
|
var block ;
|
|
while ( ( block = iterator.GetNextParagraph() ) )
|
{
|
// We don't want to indent subtrees recursively, so only perform the indent operation
|
// if the block itself is the nearestParent, or the block's parent is the nearestParent.
|
if ( ! ( block == nearestParent || block.parentNode == nearestParent ) )
|
continue ;
|
|
if ( FCKIndentCommand._UseIndentClasses )
|
{
|
// Transform current class name to indent step index.
|
var indentClass = block.className.match( FCKIndentCommand._ClassNameRegex ) ;
|
var indentStep = 0 ;
|
if ( indentClass != null )
|
{
|
indentClass = indentClass[1] ;
|
indentStep = FCKIndentCommand._IndentClassMap[indentClass] ;
|
}
|
|
// Operate on indent step index, transform indent step index back to class name.
|
if ( this.Name.IEquals( 'outdent' ) )
|
indentStep-- ;
|
else if ( this.Name.IEquals( 'indent' ) )
|
indentStep++ ;
|
indentStep = Math.min( indentStep, FCKConfig.IndentClasses.length ) ;
|
indentStep = Math.max( indentStep, 0 ) ;
|
var className = block.className.replace( FCKIndentCommand._ClassNameRegex, '' ) ;
|
if ( indentStep < 1 )
|
block.className = className ;
|
else
|
block.className = ( className.length > 0 ? className + ' ' : '' ) +
|
FCKConfig.IndentClasses[indentStep - 1] ;
|
}
|
else
|
{
|
// Offset distance is assumed to be in pixels for now.
|
var currentOffset = parseInt( block.style[this.IndentCSSProperty], 10 ) ;
|
if ( isNaN( currentOffset ) )
|
currentOffset = 0 ;
|
currentOffset += this.Offset ;
|
currentOffset = Math.max( currentOffset, 0 ) ;
|
currentOffset = Math.ceil( currentOffset / this.Offset ) * this.Offset ;
|
block.style[this.IndentCSSProperty] = currentOffset ? currentOffset + FCKConfig.IndentUnit : '' ;
|
if ( block.getAttribute( 'style' ) == '' )
|
block.removeAttribute( 'style' ) ;
|
}
|
}
|
},
|
|
_IndentList : function( range, listNode )
|
{
|
// Our starting and ending points of the range might be inside some blocks under a list item...
|
// So before playing with the iterator, we need to expand the block to include the list items.
|
var startContainer = range.StartContainer ;
|
var endContainer = range.EndContainer ;
|
while ( startContainer && startContainer.parentNode != listNode )
|
startContainer = startContainer.parentNode ;
|
while ( endContainer && endContainer.parentNode != listNode )
|
endContainer = endContainer.parentNode ;
|
|
if ( ! startContainer || ! endContainer )
|
return ;
|
|
// Now we can iterate over the individual items on the same tree depth.
|
var block = startContainer ;
|
var itemsToMove = [] ;
|
var stopFlag = false ;
|
while ( stopFlag == false )
|
{
|
if ( block == endContainer )
|
stopFlag = true ;
|
itemsToMove.push( block ) ;
|
block = block.nextSibling ;
|
}
|
if ( itemsToMove.length < 1 )
|
return ;
|
|
// Do indent or outdent operations on the array model of the list, not the list's DOM tree itself.
|
// The array model demands that it knows as much as possible about the surrounding lists, we need
|
// to feed it the further ancestor node that is still a list.
|
var listParents = FCKDomTools.GetParents( listNode ) ;
|
for ( var i = 0 ; i < listParents.length ; i++ )
|
{
|
if ( listParents[i].nodeName.IEquals( ['ul', 'ol'] ) )
|
{
|
listNode = listParents[i] ;
|
break ;
|
}
|
}
|
var indentOffset = this.Name.IEquals( 'indent' ) ? 1 : -1 ;
|
var startItem = itemsToMove[0] ;
|
var lastItem = itemsToMove[ itemsToMove.length - 1 ] ;
|
var markerObj = {} ;
|
|
// Convert the list DOM tree into a one dimensional array.
|
var listArray = FCKDomTools.ListToArray( listNode, markerObj ) ;
|
|
// Apply indenting or outdenting on the array.
|
var baseIndent = listArray[lastItem._FCK_ListArray_Index].indent ;
|
for ( var i = startItem._FCK_ListArray_Index ; i <= lastItem._FCK_ListArray_Index ; i++ )
|
listArray[i].indent += indentOffset ;
|
for ( var i = lastItem._FCK_ListArray_Index + 1 ; i < listArray.length && listArray[i].indent > baseIndent ; i++ )
|
listArray[i].indent += indentOffset ;
|
|
/* For debug use only
|
var PrintArray = function( listArray, doc )
|
{
|
var s = [] ;
|
for ( var i = 0 ; i < listArray.length ; i++ )
|
{
|
for ( var j in listArray[i] )
|
{
|
if ( j != 'contents' )
|
s.push( j + ":" + listArray[i][j] + "; " ) ;
|
else
|
{
|
var docFrag = doc.createDocumentFragment() ;
|
var tmpNode = doc.createElement( 'span' ) ;
|
for ( var k = 0 ; k < listArray[i][j].length ; k++ )
|
docFrag.appendChild( listArray[i][j][k].cloneNode( true ) ) ;
|
tmpNode.appendChild( docFrag ) ;
|
s.push( j + ":" + tmpNode.innerHTML + "; ") ;
|
}
|
}
|
s.push( '\n' ) ;
|
}
|
alert( s.join('') ) ;
|
}
|
PrintArray( listArray, FCK.EditorDocument ) ;
|
*/
|
|
// Convert the array back to a DOM forest (yes we might have a few subtrees now).
|
// And replace the old list with the new forest.
|
var newList = FCKDomTools.ArrayToList( listArray ) ;
|
if ( newList )
|
listNode.parentNode.replaceChild( newList.listNode, listNode ) ;
|
|
// Clean up the markers.
|
FCKDomTools.ClearAllMarkers( markerObj ) ;
|
}
|
} ;
|
