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-rw-r--r--Xi/exevents.c35
1 files changed, 23 insertions, 12 deletions
diff --git a/Xi/exevents.c b/Xi/exevents.c
index e1945b937..30e48f0c3 100644
--- a/Xi/exevents.c
+++ b/Xi/exevents.c
@@ -1224,9 +1224,13 @@ ProcessTouchOwnershipEvent(TouchOwnershipEvent *ev,
else if (ev->reason == XIAcceptTouch) {
int i;
- /* Go through the motions of ending the touch if the listener has
+
+ /* For pointer-emulated listeners that ungrabbed the active grab,
+ * the state was forced to LISTENER_HAS_END. Still go
+ * through the motions of ending the touch if the listener has
* already seen the end. This ensures that the touch record is ended in
- * the server. */
+ * the server.
+ */
if (ti->listeners[0].state == LISTENER_HAS_END)
TouchEmitTouchEnd(dev, ti, TOUCH_ACCEPT, ti->listeners[0].listener);
@@ -1884,16 +1888,23 @@ DeliverTouchEndEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, InternalEvent *ev,
if (listener->type == LISTENER_POINTER_REGULAR ||
listener->type == LISTENER_POINTER_GRAB) {
- rc = DeliverTouchEmulatedEvent(dev, ti, ev, listener, client, win,
- grab, xi2mask);
-
- /* Once we send a TouchEnd to a legacy listener, we're already well
- * past the accepting/rejecting stage (can only happen on
- * GrabModeSync + replay. This listener now gets the end event,
- * and we can continue.
- */
- if (rc == Success)
- listener->state = LISTENER_HAS_END;
+ /* Note: If the active grab was ungrabbed, we already changed the
+ * state to LISTENER_HAS_END but still get here. So we mustn't
+ * actually send the event.
+ * This is part two of the hack in DeactivatePointerGrab
+ */
+ if (listener->state != LISTENER_HAS_END) {
+ rc = DeliverTouchEmulatedEvent(dev, ti, ev, listener, client, win,
+ grab, xi2mask);
+
+ /* Once we send a TouchEnd to a legacy listener, we're already well
+ * past the accepting/rejecting stage (can only happen on
+ * GrabModeSync + replay. This listener now gets the end event,
+ * and we can continue.
+ */
+ if (rc == Success)
+ listener->state = LISTENER_HAS_END;
+ }
goto out;
}