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   1  /*

   2   * FCKeditor - The text editor for Internet - http://www.fckeditor.net

   3   * Copyright (C) 2003-2007 Frederico Caldeira Knabben

   4   *

   5   * == BEGIN LICENSE ==

   6   *

   7   * Licensed under the terms of any of the following licenses at your

   8   * choice:

   9   *

  10   *  - GNU General Public License Version 2 or later (the "GPL")

  11   *    http://www.gnu.org/licenses/gpl.html

  12   *

  13   *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")

  14   *    http://www.gnu.org/licenses/lgpl.html

  15   *

  16   *  - Mozilla Public License Version 1.1 or later (the "MPL")

  17   *    http://www.mozilla.org/MPL/MPL-1.1.html

  18   *

  19   * == END LICENSE ==

  20   *

  21   * This is the integration file for JavaScript.

  22   *

  23   * It defines the FCKeditor class that can be used to create editor

  24   * instances in a HTML page in the client side. For server side

  25   * operations, use the specific integration system.

  26   */
  27  
  28  // FCKeditor Class

  29  var FCKeditor = function( instanceName, width, height, toolbarSet, value )
  30  {
  31      // Properties

  32      this.InstanceName    = instanceName ;
  33      this.Width            = width            || '100%' ;
  34      this.Height            = height        || '200' ;
  35      this.ToolbarSet        = toolbarSet    || 'Default' ;
  36      this.Value            = value            || '' ;
  37      this.BasePath        = '/fckeditor/' ;
  38      this.CheckBrowser    = true ;
  39      this.DisplayErrors    = true ;
  40      this.EnableSafari    = false ;        // This is a temporary property, while Safari support is under development.

  41      this.EnableOpera    = false ;        // This is a temporary property, while Opera support is under development.

  42  
  43      this.Config            = new Object() ;
  44  
  45      // Events

  46      this.OnError        = null ;    // function( source, errorNumber, errorDescription )

  47  }
  48  
  49  FCKeditor.prototype.Version            = '2.4.1' ;
  50  FCKeditor.prototype.VersionBuild    = '14797' ;
  51  
  52  FCKeditor.prototype.Create = function()
  53  {
  54      document.write( this.CreateHtml() ) ;
  55  }
  56  
  57  FCKeditor.prototype.CreateHtml = function()
  58  {
  59      // Check for errors

  60      if ( !this.InstanceName || this.InstanceName.length == 0 )
  61      {
  62          this._ThrowError( 701, 'You must specify an instance name.' ) ;
  63          return '' ;
  64      }
  65  
  66      var sHtml = '<div>' ;
  67  
  68      if ( !this.CheckBrowser || this._IsCompatibleBrowser() )
  69      {
  70          sHtml += '<input type="hidden" id="' + this.InstanceName + '" name="' + this.InstanceName + '" value="' + this._HTMLEncode( this.Value ) + '" style="display:none" />' ;
  71          sHtml += this._GetConfigHtml() ;
  72          sHtml += this._GetIFrameHtml() ;
  73      }
  74      else
  75      {
  76          var sWidth  = this.Width.toString().indexOf('%')  > 0 ? this.Width  : this.Width  + 'px' ;
  77          var sHeight = this.Height.toString().indexOf('%') > 0 ? this.Height : this.Height + 'px' ;
  78          sHtml += '<textarea name="' + this.InstanceName + '" rows="4" cols="40" style="width:' + sWidth + ';height:' + sHeight + '">' + this._HTMLEncode( this.Value ) + '<\/textarea>' ;
  79      }
  80  
  81      sHtml += '</div>' ;
  82  
  83      return sHtml ;
  84  }
  85  
  86  FCKeditor.prototype.ReplaceTextarea = function()
  87  {
  88      if ( !this.CheckBrowser || this._IsCompatibleBrowser() )
  89      {
  90          // We must check the elements firstly using the Id and then the name.

  91          var oTextarea = document.getElementById( this.InstanceName ) ;
  92          var colElementsByName = document.getElementsByName( this.InstanceName ) ;
  93          var i = 0;
  94          while ( oTextarea || i == 0 )
  95          {
  96              if ( oTextarea && oTextarea.tagName.toLowerCase() == 'textarea' )
  97                  break ;
  98              oTextarea = colElementsByName[i++] ;
  99          }
 100  
 101          if ( !oTextarea )
 102          {
 103              alert( 'Error: The TEXTAREA with id or name set to "' + this.InstanceName + '" was not found' ) ;
 104              return ;
 105          }
 106  
 107          oTextarea.style.display = 'none' ;
 108          this._InsertHtmlBefore( this._GetConfigHtml(), oTextarea ) ;
 109          this._InsertHtmlBefore( this._GetIFrameHtml(), oTextarea ) ;
 110      }
 111  }
 112  
 113  FCKeditor.prototype._InsertHtmlBefore = function( html, element )
 114  {
 115      if ( element.insertAdjacentHTML )    // IE
 116          element.insertAdjacentHTML( 'beforeBegin', html ) ;
 117      else                                // Gecko
 118      {
 119          var oRange = document.createRange() ;
 120          oRange.setStartBefore( element ) ;
 121          var oFragment = oRange.createContextualFragment( html );
 122          element.parentNode.insertBefore( oFragment, element ) ;
 123      }
 124  }
 125  
 126  FCKeditor.prototype._GetConfigHtml = function()
 127  {
 128      var sConfig = '' ;
 129      for ( var o in this.Config )
 130      {
 131          if ( sConfig.length > 0 ) sConfig += '&amp;' ;
 132          sConfig += encodeURIComponent( o ) + '=' + encodeURIComponent( this.Config[o] ) ;
 133      }
 134  
 135      return '<input type="hidden" id="' + this.InstanceName + '___Config" value="' + sConfig + '" style="display:none" />' ;
 136  }
 137  
 138  FCKeditor.prototype._GetIFrameHtml = function()
 139  {
 140      var sFile = 'fckeditor.html' ;
 141  
 142      try
 143      {
 144          if ( (/fcksource=true/i).test( window.top.location.search ) )
 145              sFile = 'fckeditor.original.html' ;
 146      }
 147      catch (e) { /* Ignore it. Much probably we are inside a FRAME where the "top" is in another domain (security error). */ }
 148  
 149      var sLink = this.BasePath + 'editor/' + sFile + '?InstanceName=' + encodeURIComponent( this.InstanceName ) ;
 150      if (this.ToolbarSet) sLink += '&amp;Toolbar=' + this.ToolbarSet ;
 151  
 152      return '<iframe id="' + this.InstanceName + '___Frame" src="' + sLink + '" width="' + this.Width + '" height="' + this.Height + '" frameborder="0" scrolling="no"></iframe>' ;
 153  }
 154  
 155  FCKeditor.prototype._IsCompatibleBrowser = function()
 156  {
 157      return FCKeditor_IsCompatibleBrowser( this.EnableSafari, this.EnableOpera ) ;
 158  }
 159  
 160  FCKeditor.prototype._ThrowError = function( errorNumber, errorDescription )
 161  {
 162      this.ErrorNumber        = errorNumber ;
 163      this.ErrorDescription    = errorDescription ;
 164  
 165      if ( this.DisplayErrors )
 166      {
 167          document.write( '<div style="COLOR: #ff0000">' ) ;
 168          document.write( '[ FCKeditor Error ' + this.ErrorNumber + ': ' + this.ErrorDescription + ' ]' ) ;
 169          document.write( '</div>' ) ;
 170      }
 171  
 172      if ( typeof( this.OnError ) == 'function' )
 173          this.OnError( this, errorNumber, errorDescription ) ;
 174  }
 175  
 176  FCKeditor.prototype._HTMLEncode = function( text )
 177  {
 178      if ( typeof( text ) != "string" )
 179          text = text.toString() ;
 180  
 181      text = text.replace(
 182          /&/g, "&amp;").replace(
 183          /"/g, "&quot;").replace(
 184          /</g, "&lt;").replace(
 185          />/g, "&gt;") ;
 186  
 187      return text ;
 188  }
 189  
 190  function FCKeditor_IsCompatibleBrowser( enableSafari, enableOpera )
 191  {
 192      var sAgent = navigator.userAgent.toLowerCase() ;
 193  
 194      // Internet Explorer

 195      if ( sAgent.indexOf("msie") != -1 && sAgent.indexOf("mac") == -1 && sAgent.indexOf("opera") == -1 )
 196      {
 197          var sBrowserVersion = navigator.appVersion.match(/MSIE (.\..)/)[1] ;
 198          return ( sBrowserVersion >= 5.5 ) ;
 199      }
 200  
 201      // Gecko (Opera 9 tries to behave like Gecko at this point).

 202      if ( navigator.product == "Gecko" && navigator.productSub >= 20030210 && !( typeof(opera) == 'object' && opera.postError ) )
 203          return true ;
 204  
 205      // Opera

 206      if ( enableOpera && navigator.appName == 'Opera' && parseInt( navigator.appVersion, 10 ) >= 9 )
 207              return true ;
 208  
 209      // Safari

 210      if ( enableSafari && sAgent.indexOf( 'safari' ) != -1 )
 211          return ( sAgent.match( /safari\/(\d+)/ )[1] >= 312 ) ;    // Build must be at least 312 (1.3)

 212  
 213      return false ;
 214  }