[mutter] wayland/data-device: Restore keyboard focus on drag end

[Jonas Ådahl <jadahl src gnome org>]

commit de98fb29da43de0d3f7caad5bcf8fa1293353ad1
Author: Olivier Fourdan <ofourdan redhat com>
Date:   Mon Sep 2 15:47:58 2019 +0200

    wayland/data-device: Restore keyboard focus on drag end
    
    When starting a DnD operation, mutter would remove keyboard focus from
    the client, only to restore it on the data offer destroy.
    
    However, if the DnD fail, the keyboard focus is not restored, leaving
    the user unable to type in the focused window, even after clicking in
    the window.
    
    That issue would show only on first attempt, as further DnD attempts
    would destroy the previous data offer which would also restore the
    keyboard focus.
    
    Make sure we restore the keyboard focus on drag end as well.
    
    https://gitlab.gnome.org/GNOME/mutter/issues/747

 src/wayland/meta-wayland-data-device.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/wayland/meta-wayland-data-device.c b/src/wayland/meta-wayland-data-device.c
index 16fec6437..2ca77e8ea 100644
--- a/src/wayland/meta-wayland-data-device.c
+++ b/src/wayland/meta-wayland-data-device.c
@@ -977,6 +977,7 @@ data_device_end_drag_grab (MetaWaylandDragGrab *drag_grab)
     {
       meta_wayland_pointer_end_grab (drag_grab->generic.pointer);
       meta_wayland_keyboard_end_grab (drag_grab->keyboard_grab.keyboard);
+      meta_display_sync_wayland_input_focus (meta_get_display ());
     }
 
   g_slice_free (MetaWaylandDragGrab, drag_grab);