title: Use native search field as drop area
body: <p>I'm looking for a way to add a drop handler to the native spotify search field. So when the user tries to add a track he can drop it not only in the area in my app but also in the native search field.</p>
  
  <p>My app was rejected because it couldn't do that so it seems that this is possible. But I couldn't find a way on how to do it.</p>
  
  <p>Does anybody know how the handler is added?</p>