[gtk+/gestures: 128/140] gesture: Handle GDK_TOUCH_CANCEL events

[Carlos Garnacho <carlosg src gnome org>]

commit dea036bb7aa0cea194ac9f422ed1659a84aeea01
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon May 5 14:21:36 2014 +0200

    gesture: Handle GDK_TOUCH_CANCEL events
    
    The wayland windowing backend emits such events for instance, so
    have gestures cancel the sequence as those events get through.

 gtk/gtkgesture.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkgesture.c b/gtk/gtkgesture.c
index 30d944a..d9bb937 100644
--- a/gtk/gtkgesture.c
+++ b/gtk/gtkgesture.c
@@ -523,6 +523,9 @@ gtk_gesture_handle_event (GtkEventController *controller,
           _gtk_gesture_check_recognized (gesture, sequence))
         g_signal_emit (gesture, signals[UPDATE], 0, sequence);
       break;
+    case GDK_TOUCH_CANCEL:
+      gtk_gesture_cancel_sequence (gesture, sequence);
+      break;
     default:
       /* Unhandled event */
       return FALSE;