title: How to implement "Quick Switch Editor" in an UI page of Form Editor?
body: <p>There is an editor called "Quick Switch Editor" to show the list of opened files in eclipse and it provides filtering option also to find out the required file from the huge file list. </p>
  
  <p>I have created a Form Editor for my application and i want the same behavior in one of the UI pages of the Form Editor. When the icon which is defined for "Show List" is clicked in the UI page, i want to show a list of files from the project. And the required file can be selected and populated into the UI page.</p>
  
  <p>So which class is responsible to implement this "Quick Switch Editor"? If i know the class, then i can implement the same for my UI page.</p>
  
  <p>Or is any other editor supports the same behavior, available in eclipse? </p>