[mutter] main: Don't select for touch events on the stage

[Jasper St. Pierre <jstpierre src gnome org>]

commit 3b51405255463982edd9482ef91c739e520d4434
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Fri Jun 28 18:33:51 2013 -0400

    main: Don't select for touch events on the stage
    
    GNOME Shell's actors aren't touch capable, so we need to make sure that
    they get the fallback pointer emulated events for now. This fixes the top
    bar and other elements not working on a touchscreen without a grab.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=697192

 src/compositor/compositor.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/compositor/compositor.c b/src/compositor/compositor.c
index 21fbcc6..89235e6 100644
--- a/src/compositor/compositor.c
+++ b/src/compositor/compositor.c
@@ -660,6 +660,9 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
     XISetMask (mask.mask, XI_FocusIn);
     XISetMask (mask.mask, XI_FocusOut);
     XISetMask (mask.mask, XI_Motion);
+    XIClearMask (mask.mask, XI_TouchBegin);
+    XIClearMask (mask.mask, XI_TouchEnd);
+    XIClearMask (mask.mask, XI_TouchUpdate);
     XISelectEvents (xdisplay, xwin, &mask, 1);
 
     event_mask = ExposureMask | PropertyChangeMask | StructureNotifyMask;