title: Is it possible to disable a Button until download is finished?
body: <p>I am trying to solve the following problem, but I can't come up with an appropriate solution:</p>
  
  <blockquote>
    <p>Disabling a button (with an underlying Download link) when the download starts (button has clicked once) and enable the button again when the download is completed?</p>
  </blockquote>
  
  <p>I tried to Google it but couldn't even find a helpful hint. Is this even possible in general?</p>