gesture: Skip non-device events early.

diff --git a/gtk/gtkgesture.c b/gtk/gtkgesture.c
index adccc87e12baa9875d0e55cc98d47134cbb3936a..71d9b0eb90b3d8c50b3cab0dd66bdb57af19faa1 100644 (file)
--- a/gtk/gtkgesture.c
+++ b/gtk/gtkgesture.c
@@ -322,8 +322,14 @@ gtk_gesture_handle_event (GtkEventController *controller,
   GtkGesture *gesture = GTK_GESTURE (controller);
   GdkEventSequence *sequence;
   GtkGesturePrivate *priv;
+  GdkDevice *source_device;
   gboolean was_recognized;
 
+  source_device = gdk_event_get_source_device (event);
+
+  if (!source_device)
+    return FALSE;
+
   priv = gtk_gesture_get_instance_private (gesture);
   sequence = gdk_event_get_event_sequence (event);
   priv->last_sequence = sequence;