Файл: fckeditor/editor/_source/commandclasses/fckindentcommands.js
Строк: 582
<?php
/*
* FCKeditor - The text editor for Internet - http://www.fckeditor.net
* Copyright (C) 2003-2008 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 ) ;
}
} ;
?>