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   1  /*
   2   * FCKeditor - The text editor for internet
   3   * Copyright (C) 2003-2006 Frederico Caldeira Knabben
   4   * 
   5   * Licensed under the terms of the GNU Lesser General Public License:
   6   *         http://www.opensource.org/licenses/lgpl-license.php
   7   * 
   8   * For further information visit:
   9   *         http://www.fckeditor.net/
  10   * 
  11   * "Support Open Source software. What about a donation today?"
  12   * 
  13   * File Name: fckstylecommand.js
  14   *     FCKStyleCommand Class: represents the "Style" command.
  15   * 
  16   * File Authors:
  17   *         Frederico Caldeira Knabben (fredck@fckeditor.net)
  18   */
  19  
  20  var FCKStyleCommand = function()
  21  {
  22      this.Name = 'Style' ;
  23  
  24      // Load the Styles defined in the XML file.
  25      this.StylesLoader = new FCKStylesLoader() ;
  26      this.StylesLoader.Load( FCKConfig.StylesXmlPath ) ;
  27      this.Styles = this.StylesLoader.Styles ;
  28  }
  29  
  30  FCKStyleCommand.prototype.Execute = function( styleName, styleComboItem )
  31  {
  32      FCKUndo.SaveUndoStep() ;
  33  
  34      if ( styleComboItem.Selected )
  35          styleComboItem.Style.RemoveFromSelection() ;
  36      else
  37          styleComboItem.Style.ApplyToSelection() ;
  38  
  39      FCKUndo.SaveUndoStep() ;
  40  
  41      FCK.Focus() ;
  42      
  43      FCK.Events.FireEvent( "OnSelectionChange" ) ;
  44  }
  45  
  46  FCKStyleCommand.prototype.GetState = function()
  47  {
  48      if ( !FCK.EditorDocument )
  49          return FCK_TRISTATE_DISABLED ;
  50  
  51      var oSelection = FCK.EditorDocument.selection ;
  52      
  53      if ( FCKSelection.GetType() == 'Control' )
  54      {
  55          var e = FCKSelection.GetSelectedElement() ;
  56          if ( e )
  57              return this.StylesLoader.StyleGroups[ e.tagName ] ? FCK_TRISTATE_OFF : FCK_TRISTATE_DISABLED ;
  58      }
  59  
  60      return FCK_TRISTATE_OFF ;
  61  }
  62  
  63  FCKStyleCommand.prototype.GetActiveStyles = function()
  64  {
  65      var aActiveStyles = new Array() ;
  66      
  67      if ( FCKSelection.GetType() == 'Control' )
  68          this._CheckStyle( FCKSelection.GetSelectedElement(), aActiveStyles, false ) ;
  69      else
  70          this._CheckStyle( FCKSelection.GetParentElement(), aActiveStyles, true ) ;
  71          
  72      return aActiveStyles ;
  73  }
  74  
  75  FCKStyleCommand.prototype._CheckStyle = function( element, targetArray, checkParent )
  76  {
  77      if ( ! element )
  78          return ;
  79  
  80      if ( element.nodeType == 1 )
  81      {
  82          var aStyleGroup = this.StylesLoader.StyleGroups[ element.tagName ] ;
  83          if ( aStyleGroup )
  84          {
  85              for ( var i = 0 ; i < aStyleGroup.length ; i++ )
  86              {
  87                  if ( aStyleGroup[i].IsEqual( element ) )
  88                      targetArray[ targetArray.length ] = aStyleGroup[i] ;
  89              }        
  90          }
  91      }
  92      
  93      if ( checkParent )
  94          this._CheckStyle( element.parentNode, targetArray, checkParent ) ;
  95  }