Xi: use public.processInputProc to replay the touch history

If a device is frozen in results to a grab, we need to enqueue the events.

This makes things complicated, and hard to follow since touch events are now
replayed in the history, pushed into EnqueueEvent, then replayed later
during PlayReleasedEvents in response to an XAllowEvents.

While the device is frozen, no touch events are processed, so if there is a
touch client with ownership mask _below_ the grab this will delay the
delivery and potentially screw gesture recognition. However, this is the
behaviour we have already anyway if the top-most client is a sync pgrab or
there is a sync grab active on the device when the TouchBegin was generated.

(also note, such a client would only reliably work in case of ReplayPointer
anyway)

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

1 files changed, 5 insertions, 3 deletions

diff --git a/Xi/exevents.c b/Xi/exevents.c
index 9d999de5b..f4804735a 100644
--- a/Xi/exevents.c
+++ b/Xi/exevents.c
@@ -1554,7 +1554,7 @@ ProcessTouchEvent(InternalEvent *ev, DeviceIntPtr dev)
 
     touchid = ev->device_event.touchid;
 
-    if (type == ET_TouchBegin) {
+    if (type == ET_TouchBegin && !(ev->device_event.flags & TOUCH_REPLAYING)) {
         ti = TouchBeginTouch(dev, ev->device_event.sourceid, touchid,
                              emulate_pointer);
     }
@@ -1621,7 +1621,9 @@ ProcessTouchEvent(InternalEvent *ev, DeviceIntPtr dev)
      * called after event type mutation. Touch end events are always processed
      * in order to end touch records. */
     /* FIXME: check this */
-    if ((type == ET_TouchBegin && !TouchBuildSprite(dev, ti, ev)) ||
+    if ((type == ET_TouchBegin &&
+         !(ev->device_event.flags & TOUCH_REPLAYING) &&
+         !TouchBuildSprite(dev, ti, ev)) ||
         (type != ET_TouchEnd && ti->sprite.spriteTraceGood == 0))
         return;
 
@@ -1629,7 +1631,7 @@ ProcessTouchEvent(InternalEvent *ev, DeviceIntPtr dev)
     /* WARNING: the event type may change to TouchUpdate in
      * DeliverTouchEvents if a TouchEnd was delivered to a grabbing
      * owner */
-    DeliverTouchEvents(dev, ti, (InternalEvent *) ev, 0);
+    DeliverTouchEvents(dev, ti, ev, ev->device_event.resource);
     if (ev->any.type == ET_TouchEnd)
         TouchEndTouch(dev, ti);