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Input: GetPointerEvents: Deny events from devices without valuators

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For some reason, my keyboard has 25 mouse buttons, but zero valuators.  This
causes GPE to blow up spectacularly, trying to get (and set) co-ordinates from
devices without valuators.  For now, just prevent this from ever happening,
and whack a dirty great FIXME in.
This commit is contained in:
Daniel Stone
2007-08-01 01:08:26 +03:00
parent 7c9e8fd56e
commit 4d238c5c67
1 changed files with 6 additions and 2 deletions
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8
dix/getevents.c
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@@ -499,14 +499,18 @@ GetPointerEvents(xEvent *events, DeviceIntPtr pDev, int type, int buttons,
if ((type == ButtonPress || type == ButtonRelease) && !pDev->button)
return 0;
/* FIXME: I guess it should, in theory, be possible to post button events
* from devices without valuators. */
if (!pDev->valuator)
return 0;
if (!coreOnly && pDev->coreEvents)
num_events = 2;
else
num_events = 1;
if (type == MotionNotify && num_valuators <= 0) {
if (type == MotionNotify && num_valuators <= 0)
return 0;
}
/* Do we need to send a DeviceValuator event? */
if (!coreOnly && sendValuators) {