title: Magento - add WYSIWYG editor to custom widget
body: <p>I created a widget inside my custom module. Everything is working and the widget can be embedded onto CMS pages. However, instead of a textarea parameter type I want to add a WYSIWYG editor.</p>
  
  <p>This is the significant part in my widget.xml:</p>
  
  <pre><code>&lt;parameters&gt;            
      &lt;description translate="label"&gt;
          &lt;required&gt;0&lt;/required&gt;
          &lt;visible&gt;1&lt;/visible&gt;
          &lt;label&gt;Description&lt;/label&gt;
          &lt;type&gt;textarea&lt;/type&gt;
      &lt;/description&gt;
  &lt;/parameters&gt;
  </code></pre>
  
  <p>I wonder if there's a way to extend Magento's functionality to allow a WYSIWYG editor similar to this:</p>
  
  <pre><code>&lt;parameters&gt;            
      &lt;description translate="label"&gt;
          &lt;required&gt;0&lt;/required&gt;
          &lt;visible&gt;1&lt;/visible&gt;
          &lt;label&gt;Description&lt;/label&gt;
          &lt;type&gt;WYSIWYG&lt;/type&gt;
      &lt;/description&gt;
  &lt;/parameters&gt;
  </code></pre>
  
  <p>Has anybody encountered a similar problem? .. or does anyone know how this could be achieved? Maybe through a custom renderer, which calls the WYSIWYG editor, but how..? </p>
  
  <p>Thanx in advance.</p>