[xmonad] Capturing modkey release

[wagnerdm at seas.upenn.edu]

http://xmonad.org/xmonad-docs/xmonad-contrib/XMonad-Actions-CycleWindows.html
?

Quoting Matthew Hague <matthewhague at zoho.com>:

>
> Hi (again),
>
> Is there a way to capture a release of the modkey using e.g. the event hooks?
>
> I've tried modifying the source for debugkeyevents:
>
>      
> http://xmonad.org/xmonad-docs/xmonad-contrib/XMonad-Hooks-DebugKeyEvents.html
>
> but this only captures the release of "proper" keys, not the  
> modifiers.  (E.g.
> pressing mod+j will generate a press and release of the j key (with
> information about it's modifiers), but not the press and release of the
> modkey).
>
> The goal is to have a tiling layout where, after selecting a window with
> mod+j/k, that window is promoted to master.  To do this cleanly we need an
> event that means "the window has been chosen", for which the release of the
> modkey is ideal.
>
> (There is the MagicFocus layout modifier, but instead of waiting for the
> release of the modkey, it performs the shift after every mod+j, and needs an
> unintuitive window cycling policy to allow access to anything but the top two
> windows.)
>
> Thanks,
>
> Matt
>
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