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Accept touch sequence for pointer listener after second event delivery 

This is a bit of unimplemented code for touchscreen pointer emulation. A
pointer grabbing client currently never accepts the touch sequence. The
sequence must be accepted once any touch-derived event is irrevocably
delivered to a client.

The first pointer event, derived from a touch begin event, may be caught
in a sync grab and then replayed. This is essentially a revocable
delivery of an event. Thus, we must wait till a non-begin event is
delivered.

Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Chase Douglas 2012-04-11 08:13:17 -07:00 committed by Chase Douglas
parent 447fe7a1a7
commit cacdb9a740
1 changed files with 6 additions and 0 deletions
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6
Xi/exevents.c
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@ -1466,6 +1466,12 @@ DeliverTouchEmulatedEvent(DeviceIntPtr dev, TouchPointInfoPtr ti,
if (!deliveries) if (!deliveries)
DeliverOneGrabbedEvent(ptrev, dev, grab->grabtype); DeliverOneGrabbedEvent(ptrev, dev, grab->grabtype);
/* We must accept the touch sequence once a pointer listener has
* received one event past ButtonPress. */
if (deliveries && ev->any.type != ET_TouchBegin &&
!(ev->device_event.flags & TOUCH_CLIENT_ID))
TouchListenerAcceptReject(dev, ti, 0, XIAcceptTouch);
if (ev->any.type == ET_TouchEnd && if (ev->any.type == ET_TouchEnd &&
!dev->button->buttonsDown && !dev->button->buttonsDown &&
dev->deviceGrab.fromPassiveGrab && GrabIsPointerGrab(grab)) { dev->deviceGrab.fromPassiveGrab && GrabIsPointerGrab(grab)) {