From ad9da99d86af6dd9d0be696ac5173aba12600527 Mon Sep 17 00:00:00 2001
From: Carlos Garnacho <carlosg@gnome.org>
Date: Thu, 21 Aug 2014 17:27:26 +0200
Subject: [PATCH] wayland: Acquire wl_subcompositor interface

This will be needed for GDK_WINDOW_SUBSURFACE windows.

https://bugzilla.gnome.org/show_bug.cgi?id=729215
---
 gdk/wayland/gdkdisplay-wayland.c | 4 ++++
 gdk/wayland/gdkdisplay-wayland.h | 1 +
 2 files changed, 5 insertions(+)

diff --git a/gdk/wayland/gdkdisplay-wayland.c b/gdk/wayland/gdkdisplay-wayland.c
index 15e4cdc4da..0cc7eaa75f 100644
--- a/gdk/wayland/gdkdisplay-wayland.c
+++ b/gdk/wayland/gdkdisplay-wayland.c
@@ -177,6 +177,10 @@ gdk_registry_handle_global(void *data, struct wl_registry *registry, uint32_t id
       display_wayland->data_device_manager =
         wl_registry_bind(display_wayland->wl_registry, id,
 					&wl_data_device_manager_interface, 1);
+  } else if (strcmp (interface, "wl_subcompositor") == 0) {
+    display_wayland->subcompositor =
+      wl_registry_bind (display_wayland->wl_registry, id,
+                        &wl_subcompositor_interface, 1);
   }
 }
 
diff --git a/gdk/wayland/gdkdisplay-wayland.h b/gdk/wayland/gdkdisplay-wayland.h
index 3098e544e0..8393b231bc 100644
--- a/gdk/wayland/gdkdisplay-wayland.h
+++ b/gdk/wayland/gdkdisplay-wayland.h
@@ -62,6 +62,7 @@ struct _GdkWaylandDisplay
   struct gtk_shell *gtk_shell;
   struct wl_input_device *input_device;
   struct wl_data_device_manager *data_device_manager;
+  struct wl_subcompositor *subcompositor;
 
   struct wl_cursor_theme *cursor_theme;
   GHashTable *cursor_cache;