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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   * Useful functions used by almost all dialog window pages.

  22   */
  23  
  24  var GECKO_BOGUS = '<br type="_moz">' ;
  25  
  26  // Gets a element by its Id. Used for shorter coding.

  27  function GetE( elementId )
  28  {
  29      return document.getElementById( elementId )  ;
  30  }
  31  
  32  function ShowE( element, isVisible )
  33  {
  34      if ( typeof( element ) == 'string' )
  35          element = GetE( element ) ;
  36      element.style.display = isVisible ? '' : 'none' ;
  37  }
  38  
  39  function SetAttribute( element, attName, attValue )
  40  {
  41      if ( attValue == null || attValue.length == 0 )
  42          element.removeAttribute( attName, 0 ) ;            // 0 : Case Insensitive

  43      else
  44          element.setAttribute( attName, attValue, 0 ) ;    // 0 : Case Insensitive

  45  }
  46  
  47  function GetAttribute( element, attName, valueIfNull )
  48  {
  49      var oAtt = element.attributes[attName] ;
  50  
  51      if ( oAtt == null || !oAtt.specified )
  52          return valueIfNull ? valueIfNull : '' ;
  53  
  54      var oValue = element.getAttribute( attName, 2 ) ;
  55  
  56      if ( oValue == null )
  57          oValue = oAtt.nodeValue ;
  58  
  59      return ( oValue == null ? valueIfNull : oValue ) ;
  60  }
  61  
  62  // Functions used by text fiels to accept numbers only.

  63  function IsDigit( e )
  64  {
  65      if ( !e )
  66          e = event ;
  67  
  68      var iCode = ( e.keyCode || e.charCode ) ;
  69  
  70      return (
  71              ( iCode >= 48 && iCode <= 57 )        // Numbers
  72              || (iCode >= 37 && iCode <= 40)        // Arrows
  73              || iCode == 8                        // Backspace
  74              || iCode == 46                        // Delete
  75      ) ;
  76  }
  77  
  78  String.prototype.Trim = function()
  79  {
  80      return this.replace( /(^\s*)|(\s*$)/g, '' ) ;
  81  }
  82  
  83  String.prototype.StartsWith = function( value )
  84  {
  85      return ( this.substr( 0, value.length ) == value ) ;
  86  }
  87  
  88  String.prototype.Remove = function( start, length )
  89  {
  90      var s = '' ;
  91  
  92      if ( start > 0 )
  93          s = this.substring( 0, start ) ;
  94  
  95      if ( start + length < this.length )
  96          s += this.substring( start + length , this.length ) ;
  97  
  98      return s ;
  99  }
 100  
 101  String.prototype.ReplaceAll = function( searchArray, replaceArray )
 102  {
 103      var replaced = this ;
 104  
 105      for ( var i = 0 ; i < searchArray.length ; i++ )
 106      {
 107          replaced = replaced.replace( searchArray[i], replaceArray[i] ) ;
 108      }
 109  
 110      return replaced ;
 111  }
 112  
 113  function OpenFileBrowser( url, width, height )
 114  {
 115      // oEditor must be defined.

 116  
 117      var iLeft = ( oEditor.FCKConfig.ScreenWidth  - width ) / 2 ;
 118      var iTop  = ( oEditor.FCKConfig.ScreenHeight - height ) / 2 ;
 119  
 120      var sOptions = "toolbar=no,status=no,resizable=yes,dependent=yes,scrollbars=yes" ;
 121      sOptions += ",width=" + width ;
 122      sOptions += ",height=" + height ;
 123      sOptions += ",left=" + iLeft ;
 124      sOptions += ",top=" + iTop ;
 125  
 126      // The "PreserveSessionOnFileBrowser" because the above code could be

 127      // blocked by popup blockers.

 128      if ( oEditor.FCKConfig.PreserveSessionOnFileBrowser && oEditor.FCKBrowserInfo.IsIE )
 129      {
 130          // The following change has been made otherwise IE will open the file

 131          // browser on a different server session (on some cases):

 132          // http://support.microsoft.com/default.aspx?scid=kb;en-us;831678

 133          // by Simone Chiaretta.

 134          var oWindow = oEditor.window.open( url, 'FCKBrowseWindow', sOptions ) ;
 135  
 136          if ( oWindow )
 137          {
 138              // Detect Yahoo popup blocker.

 139              try
 140              {
 141                  var sTest = oWindow.name ; // Yahoo returns "something", but we can't access it, so detect that and avoid strange errors for the user.

 142                  oWindow.opener = window ;
 143              }
 144              catch(e)
 145              {
 146                  alert( oEditor.FCKLang.BrowseServerBlocked ) ;
 147              }
 148          }
 149          else
 150              alert( oEditor.FCKLang.BrowseServerBlocked ) ;
 151      }
 152      else
 153          window.open( url, 'FCKBrowseWindow', sOptions ) ;
 154  }