From ae906b318aa9412e7dabd95d96029c7cc539d7c7 Mon Sep 17 00:00:00 2001
From: Tomas Frydrych <tf@o-hand.com>
Date: Thu, 16 Oct 2008 07:50:49 +0100
Subject: [PATCH] API for enabling/disabling input to stage window.

---
 .../compositor-clutter-plugin-manager.c       | 33 +++++++++++++++++++
 src/compositor/clutter/compositor-clutter.c   |  9 +++++
 src/include/compositor-clutter-plugin.h       |  5 +++
 src/include/compositor-clutter.h              |  3 ++
 4 files changed, 50 insertions(+)

diff --git a/src/compositor/clutter/compositor-clutter-plugin-manager.c b/src/compositor/clutter/compositor-clutter-plugin-manager.c
index b9c7b740d..f20a7eb4e 100644
--- a/src/compositor/clutter/compositor-clutter-plugin-manager.c
+++ b/src/compositor/clutter/compositor-clutter-plugin-manager.c
@@ -29,6 +29,9 @@
 
 #include <gmodule.h>
 #include <string.h>
+#include <X11/Xlib.h>
+#include <X11/extensions/Xfixes.h>
+#include <X11/extensions/shape.h>
 
 static gboolean meta_compositor_clutter_plugin_manager_reload (MetaCompositorClutterPluginManager *mgr);
 
@@ -710,3 +713,33 @@ meta_comp_clutter_plugin_effect_completed (MetaCompositorClutterPlugin *plugin,
   meta_compositor_clutter_window_effect_completed (actor, event);
 }
 
+
+void
+meta_comp_clutter_plugin_set_stage_reactive (MetaCompositorClutterPlugin *plugin,
+                                             gboolean reactive)
+{
+  MetaCompositorClutterPluginPrivate *priv = plugin->manager_private;
+  MetaCompositorClutterPluginManager *mgr  = priv->self;
+  MetaDisplay *display = meta_screen_get_display (mgr->screen);
+  Display     *xdpy    = meta_display_get_xdisplay (display);
+  Window       overlay;
+
+  overlay = meta_compositor_clutter_get_overlay_window (mgr->screen);
+
+  static XserverRegion region = None;
+
+  if (region == None)
+    region = XFixesCreateRegion (xdpy, NULL, 0);
+
+  if (reactive)
+    {
+      XFixesSetWindowShapeRegion (xdpy, overlay,
+                                  ShapeInput, 0, 0, None);
+    }
+  else
+    {
+      XFixesSetWindowShapeRegion (xdpy, overlay,
+                                  ShapeInput, 0, 0, region);
+    }
+}
+
diff --git a/src/compositor/clutter/compositor-clutter.c b/src/compositor/clutter/compositor-clutter.c
index 38f223c8d..3f83a695b 100644
--- a/src/compositor/clutter/compositor-clutter.c
+++ b/src/compositor/clutter/compositor-clutter.c
@@ -2247,6 +2247,15 @@ meta_compositor_clutter_new (MetaDisplay *display)
 #endif
 }
 
+Window
+meta_compositor_clutter_get_overlay_window (MetaScreen *screen)
+{
+  MetaCompScreen *info = meta_screen_get_compositor_data (screen);
+
+  return info->output;
+}
+
+
 /* ------------------------------- */
 /* Shadow Generation */
 
diff --git a/src/include/compositor-clutter-plugin.h b/src/include/compositor-clutter-plugin.h
index 504d08294..21f6f49f2 100644
--- a/src/include/compositor-clutter-plugin.h
+++ b/src/include/compositor-clutter-plugin.h
@@ -243,4 +243,9 @@ meta_comp_clutter_plugin_get_overlay_group (MetaCompositorClutterPlugin *plugin)
 
 ClutterActor *
 meta_comp_clutter_plugin_get_stage (MetaCompositorClutterPlugin *plugin);
+
+void
+meta_comp_clutter_plugin_set_stage_reactive (MetaCompositorClutterPlugin *plugin,
+                                             gboolean reactive);
+
 #endif
diff --git a/src/include/compositor-clutter.h b/src/include/compositor-clutter.h
index 0663ef9de..7f79469be 100644
--- a/src/include/compositor-clutter.h
+++ b/src/include/compositor-clutter.h
@@ -70,4 +70,7 @@ void meta_compositor_clutter_window_effect_completed (MetaCompWindow *actor, gul
 ClutterActor * meta_compositor_clutter_get_stage_for_screen (MetaScreen *screen);
 ClutterActor * meta_compositor_clutter_get_overlay_group_for_screen (MetaScreen *screen);
 
+Window meta_compositor_clutter_get_overlay_window (MetaScreen *screen);
+
+
 #endif