Peter Hutterer 39f19b3f3b Xi: fix touch event selction conflicts (#57301) ...

There are limits on which client may select for touch events on a given
window, with restrictions being that no two clients can select on the same
device, but narrower selections are allowed, i.e. if one client has
XIAllDevices, a second client may still select for device X.

The current code had a dependency on which client selected first and which
device, resulting in inconsistencies when selecting for events. Fix that,
responding with the right errors regardless of who selected what first.

X.Org Bug 57301 <http://bugs.freedesktop.org/show_bug.cgi?id=57301>

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

2012-12-12 17:25:16 +10:00

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