fckindentcommands.js
资源名称:MEIMS.rar [点击查看]
上传用户:ah_jiwei
上传日期:2022-07-24
资源大小:54044k
文件大小:10k
源码类别:
数据库编程
开发平台:
Visual C++
- /*
- * FCKeditor - The text editor for Internet - http://www.fckeditor.net
- * Copyright (C) 2003-2007 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 ) ;
- 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 ) ;
- }
- } ;