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Viewing changes to wiki/htdocs/applets/FCKeditor/editor/_source/internals/fckundo_ie.js

  • Committer: Bazaar Package Importer
  • Author(s): Jonas Smedegaard
  • Date: 2008-06-22 21:17:13 UTC
  • mto: This revision was merged to the branch mainline in revision 18.
  • Revision ID: james.westby@ubuntu.com-20080622211713-inlv5k4eifxckelr
Import upstream version 1.7.0

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wiki/htdocs/applets/FCKeditor/editor/_source/internals/fckundo_ie.js
 
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var FCKUndo = new Object() ;
 
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FCKUndo.SavedData = new Array() ;
 
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FCKUndo.CurrentIndex = -1 ;
 
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FCKUndo.TypesCount = FCKUndo.MaxTypes = 25 ;
 
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FCKUndo.Typing = false ;
 
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FCKUndo.SaveUndoStep = function()
 
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{
 
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        // Shrink the array to the current level.
 
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        FCKUndo.SavedData = FCKUndo.SavedData.slice( 0, FCKUndo.CurrentIndex + 1 ) ;
 
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        // Get the Actual HTML.
 
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        var sHtml = FCK.EditorDocument.body.innerHTML ;
 
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        // Cancel operation if the new step is identical to the previous one.
 
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        if ( FCKUndo.CurrentIndex >= 0 && sHtml == FCKUndo.SavedData[ FCKUndo.CurrentIndex ][0] )
 
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                return ;
 
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        // If we reach the Maximun number of undo levels, we must remove the first
 
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        // entry of the list shifting all elements.
 
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        if ( FCKUndo.CurrentIndex + 1 >= FCKConfig.MaxUndoLevels )
 
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                FCKUndo.SavedData.shift() ;
 
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        else
 
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                FCKUndo.CurrentIndex++ ;
 
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        // Get the actual selection.
 
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        var sBookmark ;
 
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        if ( FCK.EditorDocument.selection.type == 'Text' )
 
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                sBookmark = FCK.EditorDocument.selection.createRange().getBookmark() ;
 
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        // Save the new level in front of the actual position.
 
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        FCKUndo.SavedData[ FCKUndo.CurrentIndex ] = [ sHtml, sBookmark ] ;
 
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        FCK.Events.FireEvent( "OnSelectionChange" ) ;
 
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}
 
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FCKUndo.CheckUndoState = function()
 
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{
 
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        return ( FCKUndo.Typing || FCKUndo.CurrentIndex > 0 ) ;
 
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}
 
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FCKUndo.CheckRedoState = function()
 
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{
 
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        return ( !FCKUndo.Typing && FCKUndo.CurrentIndex < ( FCKUndo.SavedData.length - 1 ) ) ;
 
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}
 
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FCKUndo.Undo = function()
 
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{
 
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        if ( FCKUndo.CheckUndoState() )
 
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        {
 
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                // If it is the first step.
 
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                if ( FCKUndo.CurrentIndex == ( FCKUndo.SavedData.length - 1 ) )
 
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                {
 
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                        // Save the actual state for a possible "Redo" call.
 
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                        FCKUndo.SaveUndoStep() ;
 
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                }
 
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                // Go a step back.
 
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                FCKUndo._ApplyUndoLevel( --FCKUndo.CurrentIndex ) ;
 
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                FCK.Events.FireEvent( "OnSelectionChange" ) ;
 
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        }
 
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}
 
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FCKUndo.Redo = function()
 
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{
 
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        if ( FCKUndo.CheckRedoState() )
 
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        {
 
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                // Go a step forward.
 
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                FCKUndo._ApplyUndoLevel( ++FCKUndo.CurrentIndex ) ;
 
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                FCK.Events.FireEvent( "OnSelectionChange" ) ;
 
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        }
 
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}
 
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FCKUndo._ApplyUndoLevel = function(level)
 
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{
 
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        var oData = FCKUndo.SavedData[ level ] ;
 
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        if ( !oData )
 
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                return ;
 
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        // Update the editor contents with that step data.
 
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        FCK.SetInnerHtml( oData[0] ) ;
 
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//      FCK.EditorDocument.body.innerHTML = oData[0] ;
 
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        if ( oData[1] ) 
 
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        {
 
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                var oRange = FCK.EditorDocument.selection.createRange() ;
 
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                oRange.moveToBookmark( oData[1] ) ;
 
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                oRange.select() ;
 
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        }
 
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        FCKUndo.TypesCount = 0 ; 
 
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        FCKUndo.Typing = false ;
 
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}
 
 
b'\\ No newline at end of file'