[compiz] [PATCH] Don't draw shaded windows about to be destroyed

[Jay Catherwood]

Hi,

On both git master and the Ubuntu Gutsy packages, I have a problem with
closing shaded windows when the animation plugin is active:

(1) Activate the animation plugin
(2) Shade a window
(3) Close it

The shaded window's titlebar does not disappear when the process exits. The
only way to get rid of it is to trigger an animation on a different window.

The problem is that the plugin does not release the window until the next
animation, and core continues drawing the shaded window's titlebar in the
meantime. I don't know if this is a bug in Animation, but it seems like
core should be able to handle this case.

These patches fix the problem for me. The first patch makes sure core
doesn't draw a destroyed shaded window. The second patch updates the client
list on destruction, instead of waiting for the next animation. The third
patch makes sure that destroyed windows don't interfere with the stacking
order.

Thanks,
Jay
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