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Xi: make UpdateDeviceState aware of touch events 

Update the logical button state for pointer-emulating events. Button state
must be kept separate from the ButtonClassRec to avoid clearing the button
state on a touch end if there is a physical button still down.

And obviously don't change the button state if we're currently replaying the
event history for some client.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
This commit is contained in:
Peter Hutterer 2011-12-14 16:33:05 +10:00
parent 593c3e2eb3
commit dbfd7b37a0
1 changed files with 33 additions and 0 deletions
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33
Xi/exevents.c
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@ -849,6 +849,7 @@ UpdateDeviceState(DeviceIntPtr device, DeviceEvent* event)
KeyClassPtr k = NULL;
ButtonClassPtr b = NULL;
ValuatorClassPtr v = NULL;
TouchClassPtr t = NULL;
/* This event is always the first we get, before the actual events with
* the data. However, the way how the DDX is set up, "device" will
@ -866,6 +867,9 @@ UpdateDeviceState(DeviceIntPtr device, DeviceEvent* event)
case ET_KeyRelease:
case ET_ProximityIn:
case ET_ProximityOut:
case ET_TouchBegin:
case ET_TouchUpdate:
case ET_TouchEnd:
break;
default:
/* other events don't update the device */
@ -875,6 +879,7 @@ UpdateDeviceState(DeviceIntPtr device, DeviceEvent* event)
k = device->key;
v = device->valuator;
b = device->button;
t = device->touch;
key = event->detail.key;
@ -976,6 +981,34 @@ UpdateDeviceState(DeviceIntPtr device, DeviceEvent* event)
device->proximity->in_proximity = TRUE;
else if (event->type == ET_ProximityOut)
device->proximity->in_proximity = FALSE;
else if (event->type == ET_TouchBegin) {
BUG_WARN(!b || !v);
BUG_WARN(!t);
if (!b || !t || !b->map[key])
return DONT_PROCESS;
if (!(event->flags & TOUCH_POINTER_EMULATED) ||
(event->flags & TOUCH_REPLAYING))
return DONT_PROCESS;
IncreaseButtonCount(device, key, &t->buttonsDown, &t->motionMask, &t->state);
UpdateDeviceMotionMask(device, t->state, DeviceButtonMotionMask);
} else if (event->type == ET_TouchEnd) {
BUG_WARN(!b || !v);
BUG_WARN(!t);
if (!b || !t || t->buttonsDown <= 0 || !b->map[key])
return DONT_PROCESS;
if (!(event->flags & TOUCH_POINTER_EMULATED))
return DONT_PROCESS;
if (!(event->flags & TOUCH_END))
return DONT_PROCESS;
DecreaseButtonCount(device, key, &t->buttonsDown, &t->motionMask, &t->state);
UpdateDeviceMotionMask(device, t->state, DeviceButtonMotionMask);
}
return DEFAULT;
}