[gtk+/wip/garnacho/dnd-grab: 11/13] wayland: Unset button modifiers on pointer enter

[Carlos Garnacho <carlosg src gnome org>]

commit 9038313a1a736ff125131e4398477ac355fe7554
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon Jan 18 13:31:35 2016 +0100

    wayland: Unset button modifiers on pointer enter
    
    Due to implicit grabs, we basically can guarantee that the pointer
    won't have any buttons pressed at the time of wl_pointer.enter.
    Seems like a good place to unset any button modifiers that might
    have been left stale by compositor grabs.

 gdk/wayland/gdkdevice-wayland.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gdk/wayland/gdkdevice-wayland.c b/gdk/wayland/gdkdevice-wayland.c
index fd2925c..cf98849 100644
--- a/gdk/wayland/gdkdevice-wayland.c
+++ b/gdk/wayland/gdkdevice-wayland.c
@@ -1072,6 +1072,8 @@ pointer_handle_enter (void              *data,
   device->pointer_focus = wl_surface_get_user_data(surface);
   g_object_ref(device->pointer_focus);
 
+  device->button_modifiers = 0;
+
   device->surface_x = wl_fixed_to_double (sx);
   device->surface_y = wl_fixed_to_double (sy);
   device->enter_serial = serial;