fckundo_ie.js
资源名称:H3_OA.rar [点击查看]
上传用户:li2971742
上传日期:2021-11-18
资源大小:39096k
文件大小:3k
源码类别:
OA系统
开发平台:
C#
- /*
- * FCKeditor - The text editor for internet
- * Copyright (C) 2003-2006 Frederico Caldeira Knabben
- *
- * Licensed under the terms of the GNU Lesser General Public License:
- * http://www.opensource.org/licenses/lgpl-license.php
- *
- * For further information visit:
- * http://www.fckeditor.net/
- *
- * "Support Open Source software. What about a donation today?"
- *
- * File Name: fckundo_ie.js
- * IE specific implementation for the Undo/Redo system.
- *
- * File Authors:
- * Frederico Caldeira Knabben (fredck@fckeditor.net)
- */
- var FCKUndo = new Object() ;
- FCKUndo.SavedData = new Array() ;
- FCKUndo.CurrentIndex = -1 ;
- FCKUndo.TypesCount = FCKUndo.MaxTypes = 25 ;
- FCKUndo.Typing = false ;
- FCKUndo.SaveUndoStep = function()
- {
- if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG )
- return ;
- // Shrink the array to the current level.
- FCKUndo.SavedData = FCKUndo.SavedData.slice( 0, FCKUndo.CurrentIndex + 1 ) ;
- // Get the Actual HTML.
- var sHtml = FCK.EditorDocument.body.innerHTML ;
- // Cancel operation if the new step is identical to the previous one.
- if ( FCKUndo.CurrentIndex >= 0 && sHtml == FCKUndo.SavedData[ FCKUndo.CurrentIndex ][0] )
- return ;
- // If we reach the Maximun number of undo levels, we must remove the first
- // entry of the list shifting all elements.
- if ( FCKUndo.CurrentIndex + 1 >= FCKConfig.MaxUndoLevels )
- FCKUndo.SavedData.shift() ;
- else
- FCKUndo.CurrentIndex++ ;
- // Get the actual selection.
- var sBookmark ;
- if ( FCK.EditorDocument.selection.type == 'Text' )
- sBookmark = FCK.EditorDocument.selection.createRange().getBookmark() ;
- // Save the new level in front of the actual position.
- FCKUndo.SavedData[ FCKUndo.CurrentIndex ] = [ sHtml, sBookmark ] ;
- FCK.Events.FireEvent( "OnSelectionChange" ) ;
- }
- FCKUndo.CheckUndoState = function()
- {
- return ( FCKUndo.Typing || FCKUndo.CurrentIndex > 0 ) ;
- }
- FCKUndo.CheckRedoState = function()
- {
- return ( !FCKUndo.Typing && FCKUndo.CurrentIndex < ( FCKUndo.SavedData.length - 1 ) ) ;
- }
- FCKUndo.Undo = function()
- {
- if ( FCKUndo.CheckUndoState() )
- {
- // If it is the first step.
- if ( FCKUndo.CurrentIndex == ( FCKUndo.SavedData.length - 1 ) )
- {
- // Save the actual state for a possible "Redo" call.
- FCKUndo.SaveUndoStep() ;
- }
- // Go a step back.
- FCKUndo._ApplyUndoLevel( --FCKUndo.CurrentIndex ) ;
- FCK.Events.FireEvent( "OnSelectionChange" ) ;
- }
- }
- FCKUndo.Redo = function()
- {
- if ( FCKUndo.CheckRedoState() )
- {
- // Go a step forward.
- FCKUndo._ApplyUndoLevel( ++FCKUndo.CurrentIndex ) ;
- FCK.Events.FireEvent( "OnSelectionChange" ) ;
- }
- }
- FCKUndo._ApplyUndoLevel = function(level)
- {
- var oData = FCKUndo.SavedData[ level ] ;
- if ( !oData )
- return ;
- // Update the editor contents with that step data.
- FCK.SetInnerHtml( oData[0] ) ;
- // FCK.EditorDocument.body.innerHTML = oData[0] ;
- if ( oData[1] )
- {
- var oRange = FCK.EditorDocument.selection.createRange() ;
- oRange.moveToBookmark( oData[1] ) ;
- oRange.select() ;
- }
- FCKUndo.TypesCount = 0 ;
- FCKUndo.Typing = false ;
- }