[PATCH 3/5] When deactivating an explicit pointer grab, reject all grabs on touches

[Chase Douglas]

Explicit pointer grabs are placed at the head of the touch listener
array for pointer emulated touches. If the grab is deactivated, we must
remove it from all touches for the device.

Signed-off-by: Chase Douglas <chase.douglas at canonical.com>
---
 dix/events.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/dix/events.c b/dix/events.c
index 6bcb5eb..9c39977 100644
--- a/dix/events.c
+++ b/dix/events.c
@@ -1473,6 +1473,7 @@ DeactivatePointerGrab(DeviceIntPtr mouse)
     DeviceIntPtr dev;
     Bool wasImplicit = (mouse->deviceGrab.fromPassiveGrab &&
                         mouse->deviceGrab.implicitGrab);
+    int i;
 
     TouchRemovePointerGrab(mouse);
 
@@ -1497,6 +1498,15 @@ DeactivatePointerGrab(DeviceIntPtr mouse)
         ReattachToOldMaster(mouse);
 
     ComputeFreezes();
+
+    /* If an explicit grab was deactivated, we must remove it from the head of
+     * all the touches' listener lists. */
+    for (i = 0; mouse->touch && i < mouse->touch->num_touches; i++) {
+        TouchPointInfoPtr ti = mouse->touch->touches + i;
+
+        if (ti->active && TouchResourceIsOwner(ti, grab->resource))
+            TouchListenerAcceptReject(mouse, ti, 0, XIRejectTouch);
+    }
 }
 
 /**
-- 
1.7.9.1