Press up in an empty comment box should edit your last comment

Just like in other messaging applications...

Per this screenshot:

ss__2016-04-14_at_9.24.14_PM

Pressing the Up key on the keyboard should open to edit your last comment if:

  • You have a comment in the thread.
  • If your comment input is empty.
  • If your cursor is on the top line of the empty box (no extra spaces or line breaks, that's not truly empty)
  • Obviously the comment box needs to be in focus.

@dzaporozhets @rspeicher @JobV Thoughts?