[Sommaire] [Imprimer]

   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: fckplugin.js
  14   *     Plugin to insert "Placeholders" in the editor.
  15   * 
  16   * File Authors:
  17   *         Frederico Caldeira Knabben (fredck@fckeditor.net)
  18   */
  19  
  20  // Register the related command.
  21  FCKCommands.RegisterCommand( 'Placeholder', new FCKDialogCommand( 'Placeholder', FCKLang.PlaceholderDlgTitle, FCKPlugins.Items['placeholder'].Path + 'fck_placeholder.html', 340, 170 ) ) ;
  22  
  23  // Create the "Plaholder" toolbar button.
  24  var oPlaceholderItem = new FCKToolbarButton( 'Placeholder', FCKLang.PlaceholderBtn ) ;
  25  oPlaceholderItem.IconPath = FCKPlugins.Items['placeholder'].Path + 'placeholder.gif' ;
  26  FCKToolbarItems.RegisterItem( 'Placeholder', oPlaceholderItem ) ;
  27  
  28  
  29  // The object used for all Placeholder operations.
  30  var FCKPlaceholders = new Object() ;
  31  
  32  // Add a new placeholder at the actual selection.
  33  FCKPlaceholders.Add = function( name )
  34  {
  35      var oSpan = FCK.CreateElement( 'SPAN' ) ;
  36      this.SetupSpan( oSpan, name ) ;
  37  }
  38  
  39  FCKPlaceholders.SetupSpan = function( span, name )
  40  {
  41      span.innerHTML = '[[ ' + name + ' ]]' ;
  42  
  43      span.style.backgroundColor = '#ffff00' ;
  44      span.style.color = '#000000' ;
  45  
  46      if ( FCKBrowserInfo.IsGecko )
  47          span.style.cursor = 'default' ;
  48  
  49      span._fckplaceholder = name ;
  50      span.contentEditable = false ;
  51  
  52      // To avoid it to be resized.
  53      span.onresizestart = function()
  54      {
  55          FCK.EditorWindow.event.returnValue = false ;
  56          return false ;
  57      }
  58  }
  59  
  60  // On Gecko we must do this trick so the user select all the SPAN when clicking on it.
  61  FCKPlaceholders._SetupClickListener = function()
  62  {
  63      FCKPlaceholders._ClickListener = function( e )
  64      {
  65          if ( e.target.tagName == 'SPAN' && e.target._fckplaceholder )
  66              FCKSelection.SelectNode( e.target ) ;
  67      }
  68  
  69      FCK.EditorDocument.addEventListener( 'click', FCKPlaceholders._ClickListener, true ) ;
  70  }
  71  
  72  // Open the Placeholder dialog on double click.
  73  FCKPlaceholders.OnDoubleClick = function( span )
  74  {
  75      if ( span.tagName == 'SPAN' && span._fckplaceholder )
  76          FCKCommands.GetCommand( 'Placeholder' ).Execute() ;
  77  }
  78  
  79  FCK.RegisterDoubleClickHandler( FCKPlaceholders.OnDoubleClick, 'SPAN' ) ;
  80  
  81  // Check if a Placholder name is already in use.
  82  FCKPlaceholders.Exist = function( name )
  83  {
  84      var aSpans = FCK.EditorDocument.getElementsByTagName( 'SPAN' )
  85  
  86      for ( var i = 0 ; i < aSpans.length ; i++ )
  87      {
  88          if ( aSpans[i]._fckplaceholder == name )
  89              return true ;
  90      }
  91  }
  92  
  93  if ( FCKBrowserInfo.IsIE )
  94  {
  95      FCKPlaceholders.Redraw = function()
  96      {
  97          var aPlaholders = FCK.EditorDocument.body.innerText.match( /\[\[[^\[\]]+\]\]/g ) ;
  98          if ( !aPlaholders )
  99              return ;
 100  
 101          var oRange = FCK.EditorDocument.body.createTextRange() ;
 102  
 103          for ( var i = 0 ; i < aPlaholders.length ; i++ )
 104          {
 105              if ( oRange.findText( aPlaholders[i] ) )
 106              {
 107                  var sName = aPlaholders[i].match( /\[\[\s*([^\]]*?)\s*\]\]/ )[1] ;
 108                  oRange.pasteHTML( '<span style="color: #000000; background-color: #ffff00" contenteditable="false" _fckplaceholder="' + sName + '">' + aPlaholders[i] + '</span>' ) ;
 109              }
 110          }
 111      }
 112  }
 113  else
 114  {
 115      FCKPlaceholders.Redraw = function()
 116      {
 117          var oInteractor = FCK.EditorDocument.createTreeWalker( FCK.EditorDocument.body, NodeFilter.SHOW_TEXT, FCKPlaceholders._AcceptNode, true ) ;
 118  
 119          var    aNodes = new Array() ;
 120  
 121          while ( oNode = oInteractor.nextNode() )
 122          {
 123              aNodes[ aNodes.length ] = oNode ;
 124          }
 125  
 126          for ( var n = 0 ; n < aNodes.length ; n++ )
 127          {
 128              var aPieces = aNodes[n].nodeValue.split( /(\[\[[^\[\]]+\]\])/g ) ;
 129  
 130              for ( var i = 0 ; i < aPieces.length ; i++ )
 131              {
 132                  if ( aPieces[i].length > 0 )
 133                  {
 134                      if ( aPieces[i].indexOf( '[[' ) == 0 )
 135                      {
 136                          var sName = aPieces[i].match( /\[\[\s*([^\]]*?)\s*\]\]/ )[1] ;
 137  
 138                          var oSpan = FCK.EditorDocument.createElement( 'span' ) ;
 139                          FCKPlaceholders.SetupSpan( oSpan, sName ) ;
 140  
 141                          aNodes[n].parentNode.insertBefore( oSpan, aNodes[n] ) ;
 142                      }
 143                      else
 144                          aNodes[n].parentNode.insertBefore( FCK.EditorDocument.createTextNode( aPieces[i] ) , aNodes[n] ) ;
 145                  }
 146              }
 147  
 148              aNodes[n].parentNode.removeChild( aNodes[n] ) ;
 149          }
 150          
 151          FCKPlaceholders._SetupClickListener() ;
 152      }
 153  
 154      FCKPlaceholders._AcceptNode = function( node )
 155      {
 156          if ( /\[\[[^\[\]]+\]\]/.test( node.nodeValue ) )
 157              return NodeFilter.FILTER_ACCEPT ;
 158          else
 159              return NodeFilter.FILTER_SKIP ;
 160      }
 161  }
 162  
 163  FCK.Events.AttachEvent( 'OnAfterSetHTML', FCKPlaceholders.Redraw ) ;
 164  
 165  // The "Redraw" method must be called on startup.
 166  FCKPlaceholders.Redraw() ;
 167  
 168  // We must process the SPAN tags to replace then with the real resulting value of the placeholder.
 169  FCKXHtml.TagProcessors['span'] = function( node, htmlNode )
 170  {
 171      if ( htmlNode._fckplaceholder )
 172          node = FCKXHtml.XML.createTextNode( '[[' + htmlNode._fckplaceholder + ']]' ) ;
 173      else
 174          FCKXHtml._AppendChildNodes( node, htmlNode, false ) ;
 175  
 176      return node ;
 177  }