title: How to handle <tab> in textarea?
body: <p>I would like a textarea that handles a situation of pressing <em>tab</em> key.</p>
  
  <p>In default case if you press a <em>tab</em> key then focus leaves the textarea. But what about the situation when user wants to type <em>tab</em> key in textarea?</p>
  
  <p>Can I catch this event and return focus to the textarea and add a tab to a <em>current</em> cursor position?</p>