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   1  /*

   2  Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.

   3  For licensing, see LICENSE.html or http://ckeditor.com/license

   4  */
   5  
   6  /**

   7   * @fileOverview API initialization code.

   8   */
   9  
  10  (function()
  11  {
  12      // Disable HC detaction in WebKit. (#5429)

  13      if ( CKEDITOR.env.webkit )
  14      {
  15          CKEDITOR.env.hc = false;
  16          return;
  17      }
  18  
  19      // Check is High Contrast is active by creating a temporary element with a

  20      // background image.

  21  
  22      var useSpacer = CKEDITOR.env.ie && CKEDITOR.env.version < 7,
  23          useBlank = CKEDITOR.env.ie && CKEDITOR.env.version == 7;
  24  
  25      var backgroundImageUrl = useSpacer ? ( CKEDITOR.basePath + 'images/spacer.gif' ) :
  26                               useBlank ? 'about:blank' : 'data:image/png;base64,';
  27  
  28      var hcDetect = CKEDITOR.dom.element.createFromHtml(
  29          '<div style="width:0px;height:0px;' +
  30              'position:absolute;left:-10000px;' +
  31              'background-image:url(' + backgroundImageUrl + ')"></div>', CKEDITOR.document );
  32  
  33      hcDetect.appendTo( CKEDITOR.document.getHead() );
  34  
  35      // Update CKEDITOR.env.

  36      // Catch exception needed sometimes for FF. (#4230)

  37      try
  38      {
  39          CKEDITOR.env.hc = ( hcDetect.getComputedStyle( 'background-image' ) == 'none' );
  40      }
  41      catch (e)
  42      {
  43          CKEDITOR.env.hc = false;
  44      }
  45  
  46      if ( CKEDITOR.env.hc )
  47          CKEDITOR.env.cssClass += ' cke_hc';
  48  
  49      hcDetect.remove();
  50  })();
  51  
  52  // Load core plugins.

  53  CKEDITOR.plugins.load( CKEDITOR.config.corePlugins.split( ',' ), function()
  54      {
  55          CKEDITOR.status = 'loaded';
  56          CKEDITOR.fire( 'loaded' );
  57  
  58          // Process all instances created by the "basic" implementation.

  59          var pending = CKEDITOR._.pending;
  60          if ( pending )
  61          {
  62              delete CKEDITOR._.pending;
  63  
  64              for ( var i = 0 ; i < pending.length ; i++ )
  65                  CKEDITOR.add( pending[ i ] );
  66          }
  67      });
  68  
  69  /*

  70  TODO: Enable the following and check if effective.

  71  

  72  if ( CKEDITOR.env.ie )

  73  {

  74      // Remove IE mouse flickering on IE6 because of background images.

  75      try

  76      {

  77          document.execCommand( 'BackgroundImageCache', false, true );

  78      }

  79      catch (e)

  80      {

  81          // We have been reported about loading problems caused by the above

  82          // line. For safety, let's just ignore errors.

  83      }

  84  }

  85  */
  86  
  87  /**

  88   * Fired when a CKEDITOR core object is fully loaded and ready for interaction.

  89   * @name CKEDITOR#loaded

  90   * @event

  91   */