1 files changed, 82 insertions, 73 deletions

diff --git a/Xi/exevents.c b/Xi/exevents.c
index d39cf89a7..067e6b3e5 100644
--- a/Xi/exevents.c
+++ b/Xi/exevents.c
@@ -1036,47 +1036,22 @@ DeliverOneTouchEvent(ClientPtr client, DeviceIntPtr dev, TouchPointInfoPtr ti,
 static void
 ActivateEarlyAccept(DeviceIntPtr dev, TouchPointInfoPtr ti)
 {
-    int rc;
     ClientPtr client;
     XID error;
+    GrabPtr grab = ti->listeners[0].grab;
 
-    rc = dixLookupClient(&client, ti->listeners[0].listener, serverClient,
-                         DixSendAccess);
-    if (rc != Success) {
-        ErrorF("[Xi] Failed to lookup early accepting client.\n");
-        return;
-    }
+    BUG_RETURN(ti->listeners[0].type != LISTENER_GRAB &&
+               ti->listeners[0].type != LISTENER_POINTER_GRAB);
+    BUG_RETURN(!grab);
+
+    client = rClient(grab);
 
     if (TouchAcceptReject(client, dev, XIAcceptTouch, ti->client_id,
-                          ti->listeners[0].window->drawable.id, &error) !=
-        Success)
+                          ti->listeners[0].window->drawable.id, &error) != Success)
         ErrorF("[Xi] Failed to accept touch grab after early acceptance.\n");
 }
 
 /**
- * Generate and deliver a TouchEnd event.
- *
- * @param dev The device to deliver the event for.
- * @param ti The touch point record to deliver the event for.
- * @param flags Internal event flags. The called does not need to provide
- *        TOUCH_CLIENT_ID and TOUCH_POINTER_EMULATED, this function will ensure
- *        they are set appropriately.
- * @param resource The client resource to deliver to, or 0 for all clients.
- */
-static void
-EmitTouchEnd(DeviceIntPtr dev, TouchPointInfoPtr ti, int flags, XID resource)
-{
-    InternalEvent event;
-
-    flags |= TOUCH_CLIENT_ID;
-    if (ti->emulate_pointer)
-        flags |= TOUCH_POINTER_EMULATED;
-    TouchDeliverDeviceClassesChangedEvent(ti, GetTimeInMillis(), resource);
-    GetDixTouchEnd(&event, dev, ti, flags);
-    DeliverTouchEvents(dev, ti, &event, resource);
-}
-
-/**
  * Find the oldest touch that still has a pointer emulation client.
  *
  * Pointer emulation can only be performed for the oldest touch. Otherwise, the
@@ -1126,31 +1101,42 @@ static void
 TouchPuntToNextOwner(DeviceIntPtr dev, TouchPointInfoPtr ti,
                      TouchOwnershipEvent *ev)
 {
+    TouchListener *listener = &ti->listeners[0]; /* new owner */
+    int accepted_early = listener->state == LISTENER_EARLY_ACCEPT;
+
     /* Deliver the ownership */
-    if (ti->listeners[0].state == LISTENER_AWAITING_OWNER ||
-        ti->listeners[0].state == LISTENER_EARLY_ACCEPT)
+    if (listener->state == LISTENER_AWAITING_OWNER || accepted_early)
         DeliverTouchEvents(dev, ti, (InternalEvent *) ev,
-                           ti->listeners[0].listener);
-    else if (ti->listeners[0].state == LISTENER_AWAITING_BEGIN) {
+                           listener->listener);
+    else if (listener->state == LISTENER_AWAITING_BEGIN) {
         /* We can't punt to a pointer listener unless all older pointer
          * emulated touches have been seen already. */
-        if ((ti->listeners[0].type == LISTENER_POINTER_GRAB ||
-             ti->listeners[0].type == LISTENER_POINTER_REGULAR) &&
+        if ((listener->type == LISTENER_POINTER_GRAB ||
+             listener->type == LISTENER_POINTER_REGULAR) &&
             ti != FindOldestPointerEmulatedTouch(dev))
             return;
 
-        TouchEventHistoryReplay(ti, dev, ti->listeners[0].listener);
+        TouchEventHistoryReplay(ti, dev, listener->listener);
     }
 
-    /* If we've just removed the last grab and the touch has physically
-     * ended, send a TouchEnd event too and finalise the touch. */
-    if (ti->num_listeners == 1 && ti->num_grabs == 0 && ti->pending_finish) {
-        EmitTouchEnd(dev, ti, 0, 0);
-        TouchEndTouch(dev, ti);
-        return;
+    /* New owner has Begin/Update but not end. If touch is pending_finish,
+     * emulate the TouchEnd now */
+    if (ti->pending_finish) {
+        TouchEmitTouchEnd(dev, ti, 0, 0);
+
+        /* If the last owner is not a touch grab, finalise the touch, we
+           won't get more correspondence on this.
+         */
+        if (ti->num_listeners == 1 &&
+            (ti->num_grabs == 0 ||
+             listener->grab->grabtype != XI2 ||
+             !xi2mask_isset(listener->grab->xi2mask, dev, XI_TouchBegin))) {
+            TouchEndTouch(dev, ti);
+            return;
+        }
     }
 
-    if (ti->listeners[0].state == LISTENER_EARLY_ACCEPT)
+    if (accepted_early)
         ActivateEarlyAccept(dev, ti);
 }
 
@@ -1194,7 +1180,7 @@ TouchRejected(DeviceIntPtr sourcedev, TouchPointInfoPtr ti, XID resource,
     for (i = 0; i < ti->num_listeners; i++) {
         if (ti->listeners[i].listener == resource) {
             if (ti->listeners[i].state != LISTENER_HAS_END)
-                EmitTouchEnd(sourcedev, ti, TOUCH_REJECT, resource);
+                TouchEmitTouchEnd(sourcedev, ti, TOUCH_REJECT, resource);
             break;
         }
     }
@@ -1237,16 +1223,20 @@ 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)
-            EmitTouchEnd(dev, ti, TOUCH_ACCEPT, ti->listeners[0].listener);
+            TouchEmitTouchEnd(dev, ti, TOUCH_ACCEPT, ti->listeners[0].listener);
 
         /* The touch owner has accepted the touch.  Send TouchEnd events to
          * everyone else, and truncate the list of listeners. */
         for (i = 1; i < ti->num_listeners; i++)
-            EmitTouchEnd(dev, ti, TOUCH_ACCEPT, ti->listeners[i].listener);
+            TouchEmitTouchEnd(dev, ti, TOUCH_ACCEPT, ti->listeners[i].listener);
 
         while (ti->num_listeners > 1)
             TouchRemoveListener(ti, ti->listeners[1].listener);
@@ -1383,7 +1373,7 @@ DeliverTouchEmulatedEvent(DeviceIntPtr dev, TouchPointInfoPtr ti,
 
     /* We don't deliver pointer events to non-owners */
     if (!TouchResourceIsOwner(ti, listener->listener))
-        return Success;
+        return !Success;
 
     nevents = TouchConvertToPointerEvent(ev, &motion, &button);
     BUG_RETURN_VAL(nevents == 0, BadValue);
@@ -1405,7 +1395,7 @@ DeliverTouchEmulatedEvent(DeviceIntPtr dev, TouchPointInfoPtr ti,
             /* 'grab' is the passive grab, but if the grab isn't active,
              * don't deliver */
             if (!dev->deviceGrab.grab)
-                return Success;
+                return !Success;
 
             if (grab->ownerEvents) {
                 WindowPtr focus = NullWindow;
@@ -1415,7 +1405,7 @@ DeliverTouchEmulatedEvent(DeviceIntPtr dev, TouchPointInfoPtr ti,
             }
 
             if (!deliveries)
-                DeliverOneGrabbedEvent(ptrev, dev, grab->grabtype);
+                deliveries = DeliverOneGrabbedEvent(ptrev, dev, grab->grabtype);
 
             /* We must accept the touch sequence once a pointer listener has
              * received one event past ButtonPress. */
@@ -1423,8 +1413,7 @@ DeliverTouchEmulatedEvent(DeviceIntPtr dev, TouchPointInfoPtr ti,
                 !(ev->device_event.flags & TOUCH_CLIENT_ID))
                 TouchListenerAcceptReject(dev, ti, 0, XIAcceptTouch);
 
-            if (ev->any.type == ET_TouchEnd &&
-                !(ev->device_event.flags & TOUCH_CLIENT_ID) &&
+            if (deliveries && ev->any.type == ET_TouchEnd &&
                 !dev->button->buttonsDown &&
                 dev->deviceGrab.fromPassiveGrab && GrabIsPointerGrab(grab)) {
                 (*dev->deviceGrab.DeactivateGrab) (dev);
@@ -1443,8 +1432,11 @@ DeliverTouchEmulatedEvent(DeviceIntPtr dev, TouchPointInfoPtr ti,
          */
         if (!devgrab && dev->deviceGrab.grab && dev->deviceGrab.implicitGrab) {
             TouchListener *l;
+            GrabPtr g;
 
             devgrab = dev->deviceGrab.grab;
+            g = AllocGrab(devgrab);
+            BUG_WARN(!g);
 
             *dev->deviceGrab.sync.event = ev->device_event;
 
@@ -1453,8 +1445,8 @@ DeliverTouchEmulatedEvent(DeviceIntPtr dev, TouchPointInfoPtr ti,
              * event selection. Thus, we update the last listener in the array.
              */
             l = &ti->listeners[ti->num_listeners - 1];
-            l->listener = devgrab->resource;
-            l->grab = devgrab;
+            l->listener = g->resource;
+            l->grab = g;
             //l->resource_type = RT_NONE;
 
             if (devgrab->grabtype != XI2 || devgrab->type != XI_TouchBegin)
@@ -1545,7 +1537,7 @@ 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);
     }
@@ -1612,7 +1604,9 @@ 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;
 
@@ -1620,7 +1614,7 @@ 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);
 
@@ -1848,6 +1842,14 @@ DeliverTouchBeginEvent(DeviceIntPtr dev, TouchPointInfoPtr ti,
         listener->type == LISTENER_POINTER_GRAB) {
         rc = DeliverTouchEmulatedEvent(dev, ti, ev, listener, client, win,
                                        grab, xi2mask);
+        if (rc == Success) {
+            listener->state = LISTENER_IS_OWNER;
+            /* async grabs cannot replay, so automatically accept this touch */
+            if (dev->deviceGrab.grab &&
+                dev->deviceGrab.fromPassiveGrab &&
+                dev->deviceGrab.grab->pointerMode == GrabModeAsync)
+                ActivateEarlyAccept(dev, ti);
+        }
         goto out;
     }
 
@@ -1865,7 +1867,7 @@ DeliverTouchBeginEvent(DeviceIntPtr dev, TouchPointInfoPtr ti,
         if (has_ownershipmask)
             TouchSendOwnershipEvent(dev, ti, 0, listener->listener);
 
-        if (!has_ownershipmask || listener->type == LISTENER_REGULAR)
+        if (listener->type == LISTENER_REGULAR)
             state = LISTENER_HAS_ACCEPTED;
         else
             state = LISTENER_IS_OWNER;
@@ -1885,16 +1887,23 @@ 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);
-
-        if (ti->num_listeners > 1) {
-            ev->any.type = ET_TouchUpdate;
-            ev->device_event.flags |= TOUCH_PENDING_END;
-            if (!(ev->device_event.flags & TOUCH_CLIENT_ID))
-                ti->pending_finish = TRUE;
+        /* 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;
     }
 
@@ -1918,7 +1927,7 @@ DeliverTouchEndEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, InternalEvent *ev,
             rc = DeliverOneTouchEvent(client, dev, ti, grab, win, ev);
 
         if ((ti->num_listeners > 1 ||
-             listener->state != LISTENER_HAS_ACCEPTED) &&
+             (ti->num_grabs > 0 && listener->state != LISTENER_HAS_ACCEPTED)) &&
             (ev->device_event.flags & (TOUCH_ACCEPT | TOUCH_REJECT)) == 0) {
             ev->any.type = ET_TouchUpdate;
             ev->device_event.flags |= TOUCH_PENDING_END;
@@ -2849,7 +2858,7 @@ CheckDeviceGrabAndHintWindow(WindowPtr pWin, int type,
              (deliveryMask & DeviceButtonGrabMask)) {
         GrabPtr tempGrab;
 
-        tempGrab = AllocGrab();
+        tempGrab = AllocGrab(NULL);
         if (!tempGrab)
             return;