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Merge branch 'stack-smash-on-touchpoint' into for-keith

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This commit is contained in:
Peter Hutterer 2012-12-12 17:25:28 +10:00
commit bb6f3514ca
3 changed files with 51 additions and 26 deletions
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57
Xi/exevents.c
View File

@ -1409,7 +1409,7 @@ DeliverTouchEmulatedEvent(DeviceIntPtr dev, TouchPointInfoPtr ti,
ptrev->device_event.corestate = event_get_corestate(dev, kbd);
if (grab) {
/* this side-steps the usual activation mechansims, but... */
/* this side-steps the usual activation mechanisms, but... */
if (ev->any.type == ET_TouchBegin && !dev->deviceGrab.grab)
ActivatePassiveGrab(dev, grab, ptrev, ev); /* also delivers the event */
else {
@ -1566,32 +1566,41 @@ ProcessTouchEvent(InternalEvent *ev, DeviceIntPtr dev)
else
ti = TouchFindByClientID(dev, touchid);
/* Under the following circumstances we create a new touch record for an
* existing touch:
*
* - The touch may be pointer emulated
* - An explicit grab is active on the device
* - The grab is a pointer grab
*
* This allows for an explicit grab to receive pointer events for an already
* active touch.
*/
if (!ti && type != ET_TouchBegin && emulate_pointer &&
dev->deviceGrab.grab && !dev->deviceGrab.fromPassiveGrab &&
/* Active pointer grab */
if (emulate_pointer && dev->deviceGrab.grab && !dev->deviceGrab.fromPassiveGrab &&
(dev->deviceGrab.grab->grabtype == CORE ||
dev->deviceGrab.grab->grabtype == XI ||
!xi2mask_isset(dev->deviceGrab.grab->xi2mask, dev, XI_TouchBegin))) {
ti = TouchBeginTouch(dev, ev->device_event.sourceid, touchid,
emulate_pointer);
if (!ti) {
DebugF("[Xi] %s: Failed to create new dix record for explicitly "
"grabbed touchpoint %d\n",
dev->name, touchid);
return;
}
!xi2mask_isset(dev->deviceGrab.grab->xi2mask, dev, XI_TouchBegin)))
{
/* Active pointer grab on touch point and we get a TouchEnd - claim this
* touchpoint accepted, otherwise clients waiting for ownership will
* wait on this touchpoint until this client ungrabs, or the cows come
* home, whichever is earlier */
if (ti && type == ET_TouchEnd)
TouchListenerAcceptReject(dev, ti, 0, XIAcceptTouch);
else if (!ti && type != ET_TouchBegin) {
/* Under the following circumstances we create a new touch record for an
* existing touch:
*
* - The touch may be pointer emulated
* - An explicit grab is active on the device
* - The grab is a pointer grab
*
* This allows for an explicit grab to receive pointer events for an already
* active touch.
*/
ti = TouchBeginTouch(dev, ev->device_event.sourceid, touchid,
emulate_pointer);
if (!ti) {
DebugF("[Xi] %s: Failed to create new dix record for explicitly "
"grabbed touchpoint %d\n",
dev->name, touchid);
return;
}
TouchBuildSprite(dev, ti, ev);
TouchSetupListeners(dev, ti, ev);
TouchBuildSprite(dev, ti, ev);
TouchSetupListeners(dev, ti, ev);
}
}
if (!ti) {

16
dix/events.c
View File

@ -1503,11 +1503,27 @@ DeactivatePointerGrab(DeviceIntPtr mouse)
{
GrabPtr grab = mouse->deviceGrab.grab;
DeviceIntPtr dev;
Bool wasPassive = mouse->deviceGrab.fromPassiveGrab;
Bool wasImplicit = (mouse->deviceGrab.fromPassiveGrab &&
mouse->deviceGrab.implicitGrab);
XID grab_resource = grab->resource;
int i;
/* If an explicit grab was deactivated, we must remove it from the head of
* all the touches' listener lists. */
for (i = 0; !wasPassive && mouse->touch && i < mouse->touch->num_touches; i++) {
TouchPointInfoPtr ti = mouse->touch->touches + i;
if (ti->active && TouchResourceIsOwner(ti, grab_resource)) {
/* Rejecting will generate a TouchEnd, but we must not
emulate a ButtonRelease here. So pretend the listener
already has the end event */
if (grab->grabtype == CORE || grab->grabtype == XI ||
!xi2mask_isset(dev->deviceGrab.grab->xi2mask, dev, XI_TouchBegin))
ti->listeners[0].state = LISTENER_HAS_END;
TouchListenerAcceptReject(mouse, ti, 0, XIRejectTouch);
}
}
TouchRemovePointerGrab(mouse);
mouse->valuator->motionHintWindow = NullWindow;

4
dix/touch.c
View File

@ -915,6 +915,8 @@ TouchRemovePointerGrab(DeviceIntPtr dev)
ti = TouchFindByClientID(dev, ev->touchid);
if (!ti)
return;
/* FIXME: missing a bit of code here... */
}
/* As touch grabs don't turn into active grabs with their own resources, we
@ -987,8 +989,6 @@ TouchListenerAcceptReject(DeviceIntPtr dev, TouchPointInfoPtr ti, int listener,
for (i = 0; i < nev; i++)
mieqProcessDeviceEvent(dev, events + i, NULL);
ProcessInputEvents();
FreeEventList(events, GetMaximumEventsNum());
return nev ? Success : BadMatch;