1 files changed, 47 insertions, 0 deletions
diff --git a/Xi/exevents.c b/Xi/exevents.c
index 4c1aeb4da..58fe49363 100644
--- a/Xi/exevents.c
+++ b/Xi/exevents.c
@@ -1648,6 +1648,49 @@ ProcessTouchEvent(InternalEvent *ev, DeviceIntPtr dev)
         UpdateDeviceState(dev, &ev->device_event);
 }
 
+static void
+ProcessBarrierEvent(InternalEvent *e, DeviceIntPtr dev)
+{
+    Mask filter;
+    WindowPtr pWin;
+    BarrierEvent *be = &e->barrier_event;
+    xEvent *ev;
+    int rc;
+    GrabPtr grab = dev->deviceGrab.grab;
+
+    if (!IsMaster(dev))
+        return;
+
+    if (dixLookupWindow(&pWin, be->window, serverClient, DixReadAccess) != Success)
+        return;
+
+    if (grab)
+        be->flags |= XIBarrierDeviceIsGrabbed;
+
+    rc = EventToXI2(e, &ev);
+    if (rc != Success) {
+        ErrorF("[Xi] event conversion from %s failed with code %d\n", __func__, rc);
+        return;
+    }
+
+    /* A client has a grab, deliver to this client if the grab_window is the
+       barrier window.
+
+       Otherwise, deliver normally to the client.
+     */
+    if (grab &&
+        CLIENT_ID(be->barrierid) == CLIENT_ID(grab->resource) &&
+        grab->window->drawable.id == be->window) {
+        DeliverGrabbedEvent(e, dev, FALSE);
+    } else {
+        filter = GetEventFilter(dev, ev);
+
+        DeliverEventsToWindow(dev, pWin, ev, 1,
+                              filter, NullGrab);
+    }
+    free(ev);
+}
+
 /**
  * Process DeviceEvents and DeviceChangedEvents.
  */
@@ -1797,6 +1840,10 @@ ProcessOtherEvent(InternalEvent *ev, DeviceIntPtr device)
     case ET_TouchEnd:
         ProcessTouchEvent(ev, device);
         break;
+    case ET_BarrierHit:
+    case ET_BarrierLeave:
+        ProcessBarrierEvent(ev, device);
+        break;
     default:
         ProcessDeviceEvent(ev, device);
         break;