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[Andrea Azzarone <1278985@xxxxxxxxxxxxxxxxxx>]

** Changed in: unity
       Status: Incomplete => Invalid

** Changed in: unity (Ubuntu)
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/1278985

Title:
  Regression: Alt invocation of search cannot be remapped, causing pain
  to Emacs users

Status in Unity:
  Invalid
Status in unity package in Ubuntu:
  Invalid

Bug description:
  A long while ago, we Emacs users requested that it be possible to
  remap HUD search invocation away from Alt (and especially left-Alt)
  since this is a very common key chord prefix for Emacs.  At some point
  this was done.

  In my recent bug LP: #1278582 I mentioned that the binding disappeared
  in the System Settings->Keyboard->Shortcuts window, but that bug has
  both been resolved, and a workaround was described by seb128 and tedg
  in irc that I could use gnome-control-center.real.  That does indeed
  show me the "Key to show the HUD" setting.

  However, we still have a pain-inducing regression here ;).  That
  setting is "Disabled" on my system, and yet the Unity/HUD search
  dialog is still invoked when hitting either left-Alt or right-Alt.
  Something consumes the first press of the Alt key so that it does not
  get passed to any window.  I've confirmed this with Emacs, Claws-Mail,
  and Terminal.  For example, if I hit Alt-F with focus in Emacs, Emacs
  does not see this key binding.  If however, I only release the 'F'
  key, holding down Left-Alt, and then tap 'F' again, Emacs will see the
  key the second time.  Claws exhibits very similar behavior (e.g. I
  have expunge bound to Alt-K - Claws only sees the second tap of
  Alt-K).

  Even worse, if in the course of trying to tap e.g. Alt-F in Emacs I
  happen to quickly tap Alt (either left or right), then the search
  dialog comes up and all subsequent typing is diverted to search
  instead of to Emacs.  This is highly disruptive as you might imagine
  ;)

  At one point, I had hud and the launcher invocation remapped to Super
  (and right-Super in fact) and this is much more conducive to Emacs
  users.  On my Trusty box where I've delayed updating to the latest
  archive packages, hud/unity search is still invoked by Super and *not*
  by Alt.  However, on my fully updated Trusty machine, I experience
  this regression.

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