[gtk+] x11: Avoid spurious focus events on grabs

[Benjamin Otte <otte src gnome org>]

commit db4a6040afd3d1cabbb306037e811f37d62e2e76
Author: Benjamin Otte <otte redhat com>
Date:   Mon Dec 19 12:39:53 2011 +0100

    x11: Avoid spurious focus events on grabs
    
    We want to avoid handling focus events for the private focus window,
    otherwise the keyboard grab taken by for example buttons will cause a
    spurious FOCUS_OUT/FOCUS_IN on the toplevel.
    
    The code that did this seems to have been lost in the XI2 transition for
    GTK3.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=657578

 gdk/x11/gdkdevicemanager-core-x11.c    |    5 +++++
 gdk/x11/gdkdevicemanager-xi2.c         |    1 +
 gdk/x11/gdkdevicemanagerprivate-core.h |    3 +++
 3 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/gdk/x11/gdkdevicemanager-core-x11.c b/gdk/x11/gdkdevicemanager-core-x11.c
index 156ba8b..503ad54 100644
--- a/gdk/x11/gdkdevicemanager-core-x11.c
+++ b/gdk/x11/gdkdevicemanager-core-x11.c
@@ -665,6 +665,7 @@ gdk_x11_device_manager_core_translate_event (GdkEventTranslator *translator,
     case FocusIn:
     case FocusOut:
       _gdk_device_manager_core_handle_focus (window,
+                                             xevent->xfocus.window,
                                              device_manager->core_keyboard,
                                              NULL,
                                              xevent->type == FocusIn,
@@ -795,6 +796,7 @@ _gdk_x11_event_translate_keyboard_string (GdkEventKey *event)
  */
 void
 _gdk_device_manager_core_handle_focus (GdkWindow *window,
+                                       Window     original,
                                        GdkDevice *device,
                                        GdkDevice *source_device,
                                        gboolean   focus_in,
@@ -819,6 +821,9 @@ _gdk_device_manager_core_handle_focus (GdkWindow *window,
   if (!toplevel)
     return;
 
+  if (toplevel->focus_window == original)
+    return;
+
   had_focus = HAS_FOCUS (toplevel);
 
   switch (detail)
diff --git a/gdk/x11/gdkdevicemanager-xi2.c b/gdk/x11/gdkdevicemanager-xi2.c
index 273ca7d..f9e4d11 100644
--- a/gdk/x11/gdkdevicemanager-xi2.c
+++ b/gdk/x11/gdkdevicemanager-xi2.c
@@ -1228,6 +1228,7 @@ gdk_x11_device_manager_xi2_translate_event (GdkEventTranslator *translator,
                                              GUINT_TO_POINTER (xev->sourceid));
 
         _gdk_device_manager_core_handle_focus (window,
+                                               xev->event,
                                                device,
                                                source_device,
                                                (ev->evtype == XI_FocusIn) ? TRUE : FALSE,
diff --git a/gdk/x11/gdkdevicemanagerprivate-core.h b/gdk/x11/gdkdevicemanagerprivate-core.h
index 428b34f..54463bb 100644
--- a/gdk/x11/gdkdevicemanagerprivate-core.h
+++ b/gdk/x11/gdkdevicemanagerprivate-core.h
@@ -20,6 +20,8 @@
 #ifndef __GDK_DEVICE_MANAGER_PRIVATE_CORE_H__
 #define __GDK_DEVICE_MANAGER_PRIVATE_CORE_H__
 
+#include <X11/Xlib.h>
+
 #include "gdkx11devicemanager-core.h"
 #include "gdkdevicemanagerprivate.h"
 
@@ -38,6 +40,7 @@ struct _GdkX11DeviceManagerCoreClass
 };
 
 void            _gdk_device_manager_core_handle_focus           (GdkWindow   *window,
+                                                                 Window       original,
                                                                  GdkDevice   *device,
                                                                  GdkDevice   *source_device,
                                                                  gboolean     focus_in,