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   1  /*
   2   * FCKeditor - The text editor for internet
   3   * Copyright (C) 2003-2005 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: fckselection_gecko.js
  14   *     Active selection functions. (Gecko specific implementation)
  15   * 
  16   * File Authors:
  17   *         Frederico Caldeira Knabben (fredck@fckeditor.net)
  18   */
  19  
  20  // Get the selection type (like document.select.type in IE).
  21  FCKSelection.GetType = function()
  22  {
  23  //    if ( ! this._Type )
  24  //    {
  25          // By default set the type to "Text".
  26          this._Type = 'Text' ;
  27  
  28          // Check if the actual selection is a Control (IMG, TABLE, HR, etc...).
  29          var oSel ;
  30          try { oSel = FCK.EditorWindow.getSelection() ; }
  31          catch (e) {}
  32          
  33          if ( oSel && oSel.rangeCount == 1 )
  34          {
  35              var oRange = oSel.getRangeAt(0) ;
  36              if ( oRange.startContainer == oRange.endContainer && (oRange.endOffset - oRange.startOffset) == 1 )
  37                  this._Type = 'Control' ;
  38          }
  39  //    }
  40      return this._Type ;
  41  }
  42  
  43  // Retrieves the selected element (if any), just in the case that a single
  44  // element (object like and image or a table) is selected.
  45  FCKSelection.GetSelectedElement = function()
  46  {
  47      if ( this.GetType() == 'Control' )
  48      {
  49          var oSel = FCK.EditorWindow.getSelection() ;
  50          return oSel.anchorNode.childNodes[ oSel.anchorOffset ] ;
  51      }
  52  }
  53  
  54  FCKSelection.GetParentElement = function()
  55  {
  56      if ( this.GetType() == 'Control' )
  57          return FCKSelection.GetSelectedElement().parentNode ;
  58      else
  59      {
  60          var oSel = FCK.EditorWindow.getSelection() ;
  61          if ( oSel )
  62          {
  63              var oNode = oSel.anchorNode ;
  64  
  65              while ( oNode && oNode.nodeType != 1 )
  66                  oNode = oNode.parentNode ;
  67  
  68              return oNode ;
  69          }
  70      }
  71  }
  72  
  73  FCKSelection.SelectNode = function( element )
  74  {
  75      FCK.Focus() ;
  76  
  77      var oRange = FCK.EditorDocument.createRange() ;
  78      oRange.selectNode( element ) ;
  79  
  80      var oSel = FCK.EditorWindow.getSelection() ;
  81      oSel.removeAllRanges() ;
  82      oSel.addRange( oRange ) ;
  83  }
  84  
  85  FCKSelection.Collapse = function( toStart )
  86  {
  87      var oSel = FCK.EditorWindow.getSelection() ;
  88      
  89      if ( toStart == null || toStart === true )
  90          oSel.collapseToStart() ;
  91      else
  92          oSel.collapseToEnd() ;
  93  }
  94  
  95  // The "nodeTagName" parameter must be Upper Case.
  96  FCKSelection.HasAncestorNode = function( nodeTagName )
  97  {
  98      var oContainer = this.GetSelectedElement() ;
  99      if ( ! oContainer && FCK.EditorWindow )
 100      {
 101          try        { oContainer = FCK.EditorWindow.getSelection().getRangeAt(0).startContainer ; }
 102          catch(e){}
 103      }
 104  
 105      while ( oContainer )
 106      {
 107          if ( oContainer.nodeType == 1 && oContainer.tagName == nodeTagName ) return true ;
 108          oContainer = oContainer.parentNode ;
 109      }
 110  
 111      return false ;
 112  }
 113  
 114  // The "nodeTagName" parameter must be Upper Case.
 115  FCKSelection.MoveToAncestorNode = function( nodeTagName )
 116  {
 117      var oNode ;
 118  
 119      var oContainer = this.GetSelectedElement() ;
 120      if ( ! oContainer )
 121          oContainer = FCK.EditorWindow.getSelection().getRangeAt(0).startContainer ;
 122  
 123      while ( oContainer )
 124      {
 125          if ( oContainer.tagName == nodeTagName ) 
 126              return oContainer ;
 127          oContainer = oContainer.parentNode ;
 128      }
 129      return null ;
 130  }
 131  
 132  FCKSelection.Delete = function()
 133  {
 134      // Gets the actual selection.
 135      var oSel = FCK.EditorWindow.getSelection() ;
 136  
 137      // Deletes the actual selection contents.
 138      for ( var i = 0 ; i < oSel.rangeCount ; i++ )
 139      {
 140          oSel.getRangeAt(i).deleteContents() ;
 141      }
 142  
 143      return oSel ;
 144  }
 145  
 146  // START iCM MODIFICATIONS
 147  /*
 148  // Move the cursor position (the selection point) to a specific offset within a specific node
 149  // If no offset specified, the start of the node is assumed
 150  FCKSelection.SetCursorPosition = function ( oNode, nOffset )
 151  {
 152      if ( typeof nOffset == "undefined" ) nOffset = 0 ;
 153  
 154      var oSel = FCK.EditorWindow.getSelection() ;
 155      var oRange = FCK.EditorDocument.createRange() ;
 156      
 157      oRange.setStart( oNode, nOffset ) ;
 158      oRange.collapse( true ) ;
 159      
 160      oSel.removeAllRanges() ;
 161      oSel.addRange( oRange );
 162      
 163      if ( oNode.scrollIntoView )
 164          oNode.scrollIntoView( false );    
 165  }
 166  */
 167  // END iCM MODIFICATIONS
 168