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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   * File Name: fck_dialog_common.js
  22   *     Useful functions used by almost all dialog window pages.
  23   * 
  24   * File Authors:
  25   *         Frederico Caldeira Knabben (www.fckeditor.net)
  26   */
  27  
  28  var GECKO_BOGUS = '<br type="_moz">' ;
  29  
  30  // Gets a element by its Id. Used for shorter coding.
  31  function GetE( elementId )
  32  {
  33      return document.getElementById( elementId )  ;
  34  }
  35  
  36  function ShowE( element, isVisible )
  37  {
  38      if ( typeof( element ) == 'string' )
  39          element = GetE( element ) ;
  40      element.style.display = isVisible ? '' : 'none' ;
  41  }
  42  
  43  function SetAttribute( element, attName, attValue )
  44  {
  45      if ( attValue == null || attValue.length == 0 )
  46          element.removeAttribute( attName, 0 ) ;            // 0 : Case Insensitive
  47      else
  48          element.setAttribute( attName, attValue, 0 ) ;    // 0 : Case Insensitive
  49  }
  50  
  51  function GetAttribute( element, attName, valueIfNull )
  52  {
  53      var oAtt = element.attributes[attName] ;
  54  
  55      if ( oAtt == null || !oAtt.specified )
  56          return valueIfNull ? valueIfNull : '' ;
  57  
  58      var oValue = element.getAttribute( attName, 2 ) ;
  59      
  60      if ( oValue == null )
  61          oValue = oAtt.nodeValue ;
  62  
  63      return ( oValue == null ? valueIfNull : oValue ) ;
  64  }
  65  
  66  // Functions used by text fiels to accept numbers only.
  67  function IsDigit( e )
  68  {
  69      if ( !e )
  70          e = event ;
  71  
  72      var iCode = ( e.keyCode || e.charCode ) ;
  73      
  74      return (
  75              ( iCode >= 48 && iCode <= 57 )        // Numbers
  76              || (iCode >= 37 && iCode <= 40)        // Arrows
  77              || iCode == 8                        // Backspace
  78              || iCode == 46                        // Delete
  79      ) ;
  80  }
  81  
  82  String.prototype.Trim = function()
  83  {
  84      return this.replace( /(^\s*)|(\s*$)/g, '' ) ;
  85  }
  86  
  87  String.prototype.StartsWith = function( value )
  88  {
  89      return ( this.substr( 0, value.length ) == value ) ;
  90  }
  91  
  92  String.prototype.Remove = function( start, length )
  93  {
  94      var s = '' ;
  95  
  96      if ( start > 0 )
  97          s = this.substring( 0, start ) ;
  98  
  99      if ( start + length < this.length )
 100          s += this.substring( start + length , this.length ) ;
 101  
 102      return s ;
 103  }
 104  
 105  String.prototype.ReplaceAll = function( searchArray, replaceArray )
 106  {
 107      var replaced = this ;
 108      
 109      for ( var i = 0 ; i < searchArray.length ; i++ )
 110      {
 111          replaced = replaced.replace( searchArray[i], replaceArray[i] ) ;
 112      }
 113      
 114      return replaced ;
 115  }
 116  
 117  function OpenFileBrowser( url, width, height )
 118  {
 119      // oEditor must be defined.
 120      
 121      var iLeft = ( oEditor.FCKConfig.ScreenWidth  - width ) / 2 ;
 122      var iTop  = ( oEditor.FCKConfig.ScreenHeight - height ) / 2 ;
 123  
 124      var sOptions = "toolbar=no,status=no,resizable=yes,dependent=yes,scrollbars=yes" ;
 125      sOptions += ",width=" + width ;
 126      sOptions += ",height=" + height ;
 127      sOptions += ",left=" + iLeft ;
 128      sOptions += ",top=" + iTop ;
 129  
 130      // The "PreserveSessionOnFileBrowser" because the above code could be 
 131      // blocked by popup blockers.
 132      if ( oEditor.FCKConfig.PreserveSessionOnFileBrowser && oEditor.FCKBrowserInfo.IsIE )
 133      {
 134          // The following change has been made otherwise IE will open the file 
 135          // browser on a different server session (on some cases):
 136          // http://support.microsoft.com/default.aspx?scid=kb;en-us;831678
 137          // by Simone Chiaretta.
 138          var oWindow = oEditor.window.open( url, 'FCKBrowseWindow', sOptions ) ;
 139          
 140          if ( oWindow )
 141          {
 142              // Detect Yahoo popup blocker.
 143              try
 144              {
 145                  var sTest = oWindow.name ; // Yahoo returns "something", but we can't access it, so detect that and avoid strange errors for the user.
 146                  oWindow.opener = window ;
 147              }
 148              catch(e)
 149              {
 150                  alert( oEditor.FCKLang.BrowseServerBlocked ) ;
 151              }
 152          }
 153          else
 154              alert( oEditor.FCKLang.BrowseServerBlocked ) ;
 155      }
 156      else
 157          window.open( url, 'FCKBrowseWindow', sOptions ) ;
 158  }