[Sommaire] [Imprimer]

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