[gtk+] Update gtk/gtkmenuitem.c...

[Chun-wei Fan <fanchunwei src gnome org>]

commit 0098344f84cedb6347fc99691f6e3d358ec112e7
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Sat Apr 16 00:42:08 2011 +0800

    Update gtk/gtkmenuitem.c...
    
    Copy over the implementation of _gtk_menu_shell_activate
    so that C4013 warning/error (aka gcc's "implicit
    declaration of ...") can be avoided when compiling with MSVC
    
    This is in response of the changes for bug 554057 in commit
    5f55c420471db9a05d145e140b3a7cdfc5bdba9f

 gtk/gtkmenuitem.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkmenuitem.c b/gtk/gtkmenuitem.c
index 72fbe42..ccd1283 100644
--- a/gtk/gtkmenuitem.c
+++ b/gtk/gtkmenuitem.c
@@ -168,6 +168,24 @@ G_DEFINE_TYPE_WITH_CODE (GtkMenuItem, gtk_menu_item, GTK_TYPE_BIN,
                          G_IMPLEMENT_INTERFACE (GTK_TYPE_ACTIVATABLE,
                                                 gtk_menu_item_activatable_interface_init))
 
+static void
+_gtk_menu_shell_activate (GtkMenuShell *menu_shell)
+{
+  GtkMenuShellPrivate *priv = menu_shell->priv;
+
+  if (!priv->active)
+    {
+      GdkDevice *device;
+
+      device = gtk_get_current_event_device ();
+
+      _gtk_menu_shell_set_grab_device (menu_shell, device);
+      gtk_device_grab_add (GTK_WIDGET (menu_shell), device, TRUE);
+
+      priv->have_grab = TRUE;
+      priv->active = TRUE;
+    }
+}
 
 static void
 gtk_menu_item_class_init (GtkMenuItemClass *klass)