devdraw: alt-tabbing enters compose key mode and leaves it open

[juster, 2011-09-27 18:44:37]

On 2011/09/27 18:30:58, jrcd83 wrote:

Hello Russ Cox,

I have been using acme more often lately on my old OpenBSD box. I use the rio
window manager and I press alt-tab to switch between windows. I noticed a small
and annoying bug that mystified me for a few days. When I alt-tab out of a
window, the alt key begins the compose feature mentioned in the keyboard(7)
manpage for plan9port. The alt-tab, of course, immediately switches out of the
window. When I return back to the same window, the  composition key input mode
is still active and sometimes interesting runes will appear if I start typing.
This small patch helps my situation by turning off the compose key input mode
for a devdraw window when that window loses focus.

I hope everything is in order and you might find this useful. Please let me know
if I should improve this, as it is a bit of a stab in the dark. Thank you for
plan9port.

Justin Davis

[rsc, 2011-09-28 17:56:28]

Thanks!  I've been annoyed by this for a while but
never got around to fixing it.

[rsc, 2011-09-28 18:11:36]

*** Submitted as fa2b875d206e ***

devdraw: do not interpret alt-tab as alt for compose

R=rsc
CC=plan9port.codebot
http://codereview.appspot.com/5132050

Committer: Russ Cox <rsc@swtch.com>