compositor: Remove meta_compositor_window_[un]mapped

We no longer unmap the toplevel windows during normal operation. The
toplevel state is tied to the window's lifetime.

Call meta_compositor_add_window / meta_compositor_remove_window instead...

Makefile.am

@@ -8,3 +8,5 @@ EXTRA_DIST = HACKING MAINTAINERS rationales.txt
 DISTCLEANFILES = intltool-extract intltool-merge intltool-update po/stamp-it po/.intltool-merge-cache
 
 DISTCHECK_CONFIGURE_FLAGS = --enable-gtk-doc
+
+ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}

NEWS

@@ -1,3 +1,42 @@
+3.11.2
+======
+* Fix resize operations using mouse-button-modifier [Lionel; #710251]
+* Misc. fixes and cleanups [Jasper, Rico, Florian; #711731]
+
+Contributors:
+  Lionel Landwerlin, Florian Müllner, Jasper St. Pierre, Rico Tzschichholz
+
+3.11.1
+======
+* Don't require at least one output device to be connected [Giovanni; #709009]
+* Name the guard window [Andrew; #710346]
+* Use new UPower API [Bastien]
+* Expose min-backlight-step [Asad; #710380]
+* Don't focus the no-focus-window for globally active windows [Jasper; #710296]
+* Misc. fixes and cleanups [Jasper, Rico, Olav, Magdalen; #709776]
+
+Contributors:
+  Magdalen Berns, Giovanni Campagna, Asad Mehmood, Bastien Nocera,
+  Jasper St. Pierre, Rico Tzschichholz, Olav Vitters, Andrew Walton
+
+Translations:
+  Reinout van Schouwen [nl]
+
+3.10.1
+======
+* Don't apply fullscreen workarounds to CSD windows [Giovanni; #708718]
+* Fix hangs during DND operations [Adel; #709340]
+* Use nearest-pixel interpolation when possible [Hans; #708389]
+* Fix tile previews getting stuck on right click during drags [Lionel; #704759]
+* Misc bug fixes [Giovanni, Jasper; #708420]
+
+Contributors:
+  Giovanni Campagna, Adel Gadllah, Lionel Landwerlin, Hans Petter Jansson,
+  Jasper St. Pierre
+
+Translations:
+  Khaled Hosny [ar], Reinout van Schouwen [nl], Carles Ferrando [ca@valencia]
+
 3.10.0.1
 ========
 * Fix bug when a window changed size twice in a single frame - this

configure.ac

@@ -1,8 +1,9 @@
 AC_PREREQ(2.50)
+AC_CONFIG_MACRO_DIR([m4])
 
 m4_define([mutter_major_version], [3])
-m4_define([mutter_minor_version], [10])
-m4_define([mutter_micro_version], [0.1])
+m4_define([mutter_minor_version], [11])
+m4_define([mutter_micro_version], [2])
 
 m4_define([mutter_version],
           [mutter_major_version.mutter_minor_version.mutter_micro_version])
@@ -76,7 +77,7 @@ MUTTER_PC_MODULES="
    xcomposite >= 0.2 xfixes xrender xdamage xi >= 1.6.0
    $CLUTTER_PACKAGE >= 1.15.90
    cogl-1.0 >= 1.15.6
-   upower-glib > 0.9.11
+   upower-glib >= 0.99.0
    gnome-desktop-3.0
 "
 

doc/reference/Makefile.am

@@ -49,8 +49,8 @@ FIXXREF_OPTIONS=
 # Used for dependencies. The docs will be rebuilt if any of these change.
 # e.g. HFILE_GLOB=$(top_srcdir)/gtk/*.h
 # e.g. CFILE_GLOB=$(top_srcdir)/gtk/*.c
-HFILE_GLOB=$(top_srcdir)/src/*.h
-CFILE_GLOB=$(top_srcdir)/src/*.c
+HFILE_GLOB=$(top_srcdir)/src/*/*.h
+CFILE_GLOB=$(top_srcdir)/src/*/*.c
 
 # Extra header to include when scanning, which are not under DOC_SOURCE_DIR
 # e.g. EXTRA_HFILES=$(top_srcdir}/contrib/extra.h

doc/reference/meta-sections.txt

@@ -96,8 +96,6 @@ meta_compositor_hide_window
 meta_compositor_switch_workspace
 meta_compositor_maximize_window
 meta_compositor_unmaximize_window
-meta_compositor_window_mapped
-meta_compositor_window_unmapped
 meta_compositor_sync_window_geometry
 meta_compositor_set_updates_frozen
 meta_compositor_queue_frame_drawn
@@ -207,7 +205,6 @@ meta_key_binding_get_modifiers
 meta_key_binding_get_mask
 meta_key_binding_is_builtin
 meta_keybindings_set_custom_handler
-meta_keybindings_switch_window
 meta_screen_ungrab_all_keys
 meta_screen_grab_all_keys
 </SECTION>
@@ -389,6 +386,23 @@ MetaWindowActorPrivate
 meta_window_actor_get_type
 </SECTION>
 
+<SECTION>
+<FILE>meta-cullable</FILE>
+<TITLE>MetaCullable</TITLE>
+MetaCullable
+MetaCullableInterface
+meta_cullable_cull_out
+meta_cullable_reset_culling
+meta_cullable_cull_out_children
+meta_cullable_reset_culling_children
+<SUBSECTION Standard>
+META_TYPE_CULLABLE
+META_CULLABLE
+META_IS_CULLABLE
+META_CULLABLE_GET_IFACE
+meta_cullable_get_type
+</SECTION>
+
 <SECTION>
 <FILE>prefs</FILE>
 MetaPreference
@@ -542,7 +556,10 @@ meta_window_is_override_redirect
 meta_window_is_skip_taskbar
 meta_window_get_rect
 meta_window_get_input_rect
+meta_window_get_frame_rect
 meta_window_get_outer_rect
+meta_window_client_rect_to_frame_rect
+meta_window_frame_rect_to_client_rect
 meta_window_get_screen
 meta_window_get_display
 meta_window_get_xwindow

mutter.doap

@@ -21,6 +21,7 @@ environment.</description>
   -->
   <mailing-list rdf:resource="http://mail.gnome.org/mailman/listinfo/gnome-shell-list" />
   <download-page rdf:resource="http://download.gnome.org/sources/mutter/" />
+  <download-page rdf:resource="http://download.gnome.org/sources/mutter-wayland/" />
   <bug-database rdf:resource="http://bugzilla.gnome.org/browse.cgi?product=mutter" />
 
   <category rdf:resource="http://api.gnome.org/doap-extensions#desktop" />

src/Makefile.am

@@ -55,7 +55,8 @@ libmutter_la_SOURCES =				\
 	compositor/meta-background-actor.c	\
 	compositor/meta-background-actor-private.h	\
 	compositor/meta-background-group.c	\
-	compositor/meta-background-group-private.h	\
+	compositor/meta-cullable.c		\
+	compositor/meta-cullable.h		\
 	compositor/meta-module.c		\
 	compositor/meta-module.h		\
 	compositor/meta-plugin.c		\
@@ -168,7 +169,9 @@ libmutter_la_SOURCES =				\
 	ui/theme.c				\
 	meta/theme.h				\
 	ui/theme-private.h			\
-	ui/ui.c					\
+	ui/ui.c
+
+nodist_libmutter_la_SOURCES =			\
 	$(mutter_built_sources)
 
 libmutter_la_LDFLAGS = -no-undefined
@@ -249,7 +252,7 @@ Meta-$(api_version).gir: libmutter.la
 @META_GIR@_FILES =				\
 	mutter-enum-types.h			\
 	$(libmutterinclude_base_headers)	\
-	$(filter %.c,$(libmutter_la_SOURCES))
+	$(filter %.c,$(libmutter_la_SOURCES) $(nodist_libmutter_la_SOURCES))
 @META_GIR@_SCANNERFLAGS = --warn-all --warn-error
 
 endif

src/compositor/compositor-private.h

@@ -17,8 +17,6 @@ struct _MetaCompositor
 {
   MetaDisplay    *display;
 
-  Atom            atom_x_root_pixmap;
-  Atom            atom_net_wm_window_opacity;
   guint           repaint_func_id;
 
   ClutterActor   *shadow_src;

src/compositor/compositor.c

@@ -42,15 +42,6 @@
  * the call, so it may be necessary to readjust the display based on the
  * old_rect to start the animation.
  *
- * meta_compositor_window_mapped() and meta_compositor_window_unmapped() are
- * notifications when the toplevel window (frame or client window) is mapped or
- * unmapped. That is, when the result of meta_window_toplevel_is_mapped()
- * changes. The main use of this is to drop resources when a window is unmapped.
- * A window will always be mapped before meta_compositor_show_window()
- * is called and will not be unmapped until after meta_compositor_hide_window()
- * is called. If the live_hidden_windows preference is set, windows will never
- * be unmapped.
- *
  * # Containers #
  *
  * There's two containers in the stage that are used to place window actors, here
@@ -175,31 +166,6 @@ process_damage (MetaCompositor     *compositor,
   meta_window_actor_process_damage (window_actor, event);
 }
 
-static void
-process_property_notify (MetaCompositor	*compositor,
-                         XPropertyEvent *event,
-                         MetaWindow     *window)
-{
-  MetaWindowActor *window_actor;
-
-  if (window == NULL)
-    return;
-
-  window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
-  if (window_actor == NULL)
-    return;
-
-  /* Check for the opacity changing */
-  if (event->atom == compositor->atom_net_wm_window_opacity)
-    {
-      meta_window_actor_update_opacity (window_actor);
-      DEBUG_TRACE ("process_property_notify: net_wm_window_opacity\n");
-      return;
-    }
-
-  DEBUG_TRACE ("process_property_notify: unknown\n");
-}
-
 static Window
 get_output_window (MetaScreen *screen)
 {
@@ -685,15 +651,6 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
   clutter_actor_add_child (info->stage, info->window_group);
   clutter_actor_add_child (info->stage, info->top_window_group);
 
-  info->plugin_mgr = meta_plugin_manager_new (screen);
-
-  /*
-   * Delay the creation of the overlay window as long as we can, to avoid
-   * blanking out the screen. This means that during the plugin loading, the
-   * overlay window is not accessible; if the plugin needs to access it
-   * directly, it should hook into the "show" signal on stage, and do
-   * its stuff there.
-   */
   info->output = get_output_window (screen);
   XReparentWindow (xdisplay, xwin, info->output, 0, 0);
 
@@ -714,6 +671,8 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
       info->pending_input_region = None;
     }
 
+  info->plugin_mgr = meta_plugin_manager_new (screen);
+
   /* Map overlay window before redirecting windows offscreen so we catch their
    * contents until we show the stage.
    */
@@ -756,7 +715,7 @@ meta_shape_cow_for_window (MetaScreen *screen,
       int width, height;
       MetaRectangle rect;
 
-      meta_window_get_outer_rect (metaWindow, &rect);
+      meta_window_get_frame_rect (metaWindow, &rect);
 
       window_bounds.x = rect.x;
       window_bounds.y = rect.y;
@@ -884,6 +843,18 @@ meta_compositor_window_shape_changed (MetaCompositor *compositor,
   meta_window_actor_update_shape (window_actor);
 }
 
+void
+meta_compositor_window_opacity_changed (MetaCompositor *compositor,
+                                        MetaWindow     *window)
+{
+  MetaWindowActor *window_actor;
+  window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
+  if (!window_actor)
+    return;
+
+  meta_window_actor_update_opacity (window_actor);
+}
+
 /* Clutter makes the assumption that there is only one X window
  * per stage, which is a valid assumption to make for a generic
  * application toolkit. As such, it will ignore any events sent
@@ -990,28 +961,19 @@ meta_compositor_process_event (MetaCompositor *compositor,
 	}
     }
 
-  switch (event->type)
+  if (event->type == meta_display_get_damage_event_base (compositor->display) + XDamageNotify)
     {
-    case PropertyNotify:
-      process_property_notify (compositor, (XPropertyEvent *) event, window);
-      break;
-
-    default:
-      if (event->type == meta_display_get_damage_event_base (compositor->display) + XDamageNotify)
+      /* Core code doesn't handle damage events, so we need to extract the MetaWindow
+       * ourselves
+       */
+      if (window == NULL)
         {
-          /* Core code doesn't handle damage events, so we need to extract the MetaWindow
-           * ourselves
-           */
-          if (window == NULL)
-            {
-              Window xwin = ((XDamageNotifyEvent *) event)->drawable;
-              window = meta_display_lookup_x_window (compositor->display, xwin);
-            }
-
-	  DEBUG_TRACE ("meta_compositor_process_event (process_damage)\n");
-          process_damage (compositor, (XDamageNotifyEvent *) event, window);
+          Window xwin = ((XDamageNotifyEvent *) event)->drawable;
+          window = meta_display_lookup_x_window (compositor->display, xwin);
         }
-      break;
+
+      DEBUG_TRACE ("meta_compositor_process_event (process_damage)\n");
+      process_damage (compositor, (XDamageNotifyEvent *) event, window);
     }
 
   /* Clutter needs to know about MapNotify events otherwise it will
@@ -1311,30 +1273,6 @@ meta_compositor_sync_stack (MetaCompositor  *compositor,
   sync_actor_stacking (info);
 }
 
-void
-meta_compositor_window_mapped (MetaCompositor *compositor,
-                               MetaWindow     *window)
-{
-  MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
-  DEBUG_TRACE ("meta_compositor_window_mapped\n");
-  if (!window_actor)
-    return;
-
-  meta_window_actor_mapped (window_actor);
-}
-
-void
-meta_compositor_window_unmapped (MetaCompositor *compositor,
-                                 MetaWindow     *window)
-{
-  MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
-  DEBUG_TRACE ("meta_compositor_window_unmapped\n");
-  if (!window_actor)
-    return;
-
-  meta_window_actor_unmapped (window_actor);
-}
-
 void
 meta_compositor_sync_window_geometry (MetaCompositor *compositor,
 				      MetaWindow *window,
@@ -1515,13 +1453,7 @@ on_shadow_factory_changed (MetaShadowFactory *factory,
 MetaCompositor *
 meta_compositor_new (MetaDisplay *display)
 {
-  char *atom_names[] = {
-    "_XROOTPMAP_ID",
-    "_NET_WM_WINDOW_OPACITY",
-  };
-  Atom                   atoms[G_N_ELEMENTS(atom_names)];
   MetaCompositor        *compositor;
-  Display               *xdisplay = meta_display_get_xdisplay (display);
 
   if (!composite_at_least_version (display, 0, 3))
     return NULL;
@@ -1533,18 +1465,11 @@ meta_compositor_new (MetaDisplay *display)
   if (g_getenv("META_DISABLE_MIPMAPS"))
     compositor->no_mipmaps = TRUE;
 
-  meta_verbose ("Creating %d atoms\n", (int) G_N_ELEMENTS (atom_names));
-  XInternAtoms (xdisplay, atom_names, G_N_ELEMENTS (atom_names),
-                False, atoms);
-
   g_signal_connect (meta_shadow_factory_get_default (),
                     "changed",
                     G_CALLBACK (on_shadow_factory_changed),
                     compositor);
 
-  compositor->atom_x_root_pixmap = atoms[0];
-  compositor->atom_net_wm_window_opacity = atoms[1];
-
   compositor->repaint_func_id = clutter_threads_add_repaint_func (meta_repaint_func,
                                                                   compositor,
                                                                   NULL);

src/compositor/meta-background-actor-private.h

@@ -6,9 +6,6 @@
 #include <meta/screen.h>
 #include <meta/meta-background-actor.h>
 
-void meta_background_actor_set_clip_region  (MetaBackgroundActor *self,
-                                             cairo_region_t      *clip_region);
-
 cairo_region_t *meta_background_actor_get_clip_region (MetaBackgroundActor *self);
 
 #endif /* META_BACKGROUND_ACTOR_PRIVATE_H */

src/compositor/meta-background-actor.c

@@ -41,20 +41,35 @@
 #include <meta/errors.h>
 #include <meta/meta-background.h>
 #include "meta-background-actor-private.h"
+#include "meta-cullable.h"
 
 struct _MetaBackgroundActorPrivate
 {
   cairo_region_t *clip_region;
 };
 
-G_DEFINE_TYPE (MetaBackgroundActor, meta_background_actor, CLUTTER_TYPE_ACTOR);
+static void cullable_iface_init (MetaCullableInterface *iface);
+
+G_DEFINE_TYPE_WITH_CODE (MetaBackgroundActor, meta_background_actor, CLUTTER_TYPE_ACTOR,
+                         G_IMPLEMENT_INTERFACE (META_TYPE_CULLABLE, cullable_iface_init));
+
+static void
+set_clip_region (MetaBackgroundActor *self,
+                 cairo_region_t      *clip_region)
+{
+  MetaBackgroundActorPrivate *priv = self->priv;
+
+  g_clear_pointer (&priv->clip_region, (GDestroyNotify) cairo_region_destroy);
+  if (clip_region)
+    priv->clip_region = cairo_region_copy (clip_region);
+}
 
 static void
 meta_background_actor_dispose (GObject *object)
 {
   MetaBackgroundActor *self = META_BACKGROUND_ACTOR (object);
 
-  meta_background_actor_set_clip_region (self, NULL);
+  set_clip_region (self, NULL);
 
   G_OBJECT_CLASS (meta_background_actor_parent_class)->dispose (object);
 }
@@ -104,26 +119,6 @@ meta_background_actor_get_preferred_height (ClutterActor *actor,
     *natural_height_p = height;
 }
 
-static gboolean
-meta_background_actor_get_paint_volume (ClutterActor       *actor,
-                                        ClutterPaintVolume *volume)
-{
-  ClutterContent *content;
-  gfloat width, height;
-
-  content = clutter_actor_get_content (actor);
-
-  if (!content)
-    return FALSE;
-
-  clutter_content_get_preferred_size (content, &width, &height);
-
-  clutter_paint_volume_set_width (volume, width);
-  clutter_paint_volume_set_height (volume, height);
-
-  return TRUE;
-}
-
 static void
 meta_background_actor_class_init (MetaBackgroundActorClass *klass)
 {
@@ -136,7 +131,6 @@ meta_background_actor_class_init (MetaBackgroundActorClass *klass)
 
   actor_class->get_preferred_width = meta_background_actor_get_preferred_width;
   actor_class->get_preferred_height = meta_background_actor_get_preferred_height;
-  actor_class->get_paint_volume = meta_background_actor_get_paint_volume;
 }
 
 static void
@@ -166,31 +160,27 @@ meta_background_actor_new (void)
   return CLUTTER_ACTOR (self);
 }
 
-/**
- * meta_background_actor_set_clip_region:
- * @self: a #MetaBackgroundActor
- * @clip_region: (allow-none): the area of the actor (in allocate-relative
- *   coordinates) that is visible.
- *
- * Sets the area of the background that is unobscured by overlapping windows.
- * This is used to optimize and only paint the visible portions.
- */
-void
-meta_background_actor_set_clip_region (MetaBackgroundActor *self,
-                                       cairo_region_t      *clip_region)
+static void
+meta_background_actor_cull_out (MetaCullable   *cullable,
+                                cairo_region_t *unobscured_region,
+                                cairo_region_t *clip_region)
 {
-  MetaBackgroundActorPrivate *priv;
+  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (cullable);
+  set_clip_region (self, clip_region);
+}
 
-  g_return_if_fail (META_IS_BACKGROUND_ACTOR (self));
+static void
+meta_background_actor_reset_culling (MetaCullable *cullable)
+{
+  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (cullable);
+  set_clip_region (self, NULL);
+}
 
-  priv = self->priv;
-
-  g_clear_pointer (&priv->clip_region,
-                   (GDestroyNotify)
-                   cairo_region_destroy);
-
-  if (clip_region)
-    priv->clip_region = cairo_region_copy (clip_region);
+static void
+cullable_iface_init (MetaCullableInterface *iface)
+{
+  iface->cull_out = meta_background_actor_cull_out;
+  iface->reset_culling = meta_background_actor_reset_culling;
 }
 
 /**

src/compositor/meta-background-group-private.h

@@ -1,11 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-#ifndef META_BACKGROUND_GROUP_PRIVATE_H
-#define META_BACKGROUND_GROUP_PRIVATE_H
-
-#include <meta/screen.h>
-#include <meta/meta-background-group.h>
-
-void meta_background_group_set_clip_region  (MetaBackgroundGroup *self,
-                                             cairo_region_t      *visible_region);
-#endif /* META_BACKGROUND_GROUP_PRIVATE_H */

src/compositor/meta-background-group.c

@@ -16,87 +16,43 @@
 
 #include <config.h>
 
-#include "compositor-private.h"
-#include "clutter-utils.h"
-#include "meta-background-actor-private.h"
-#include "meta-background-group-private.h"
+#include <meta/meta-background-group.h>
+#include "meta-cullable.h"
 
-G_DEFINE_TYPE (MetaBackgroundGroup, meta_background_group, CLUTTER_TYPE_ACTOR);
+static void cullable_iface_init (MetaCullableInterface *iface);
 
-struct _MetaBackgroundGroupPrivate
-{
-  gpointer dummy;
-};
-
-static void
-meta_background_group_dispose (GObject *object)
-{
-  G_OBJECT_CLASS (meta_background_group_parent_class)->dispose (object);
-}
-
-static gboolean
-meta_background_group_get_paint_volume (ClutterActor       *actor,
-                                        ClutterPaintVolume *volume)
-{
-  return clutter_paint_volume_set_from_allocation (volume, actor);
-}
+G_DEFINE_TYPE_WITH_CODE (MetaBackgroundGroup, meta_background_group, CLUTTER_TYPE_ACTOR,
+                         G_IMPLEMENT_INTERFACE (META_TYPE_CULLABLE, cullable_iface_init));
 
 static void
 meta_background_group_class_init (MetaBackgroundGroupClass *klass)
 {
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-  ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
+}
 
-  actor_class->get_paint_volume = meta_background_group_get_paint_volume;
-  object_class->dispose = meta_background_group_dispose;
+static void
+meta_background_group_cull_out (MetaCullable   *cullable,
+                                cairo_region_t *unobscured_region,
+                                cairo_region_t *clip_region)
+{
+  meta_cullable_cull_out_children (cullable, unobscured_region, clip_region);
+}
 
-  g_type_class_add_private (klass, sizeof (MetaBackgroundGroupPrivate));
+static void
+meta_background_group_reset_culling (MetaCullable *cullable)
+{
+  meta_cullable_reset_culling_children (cullable);
+}
+
+static void
+cullable_iface_init (MetaCullableInterface *iface)
+{
+  iface->cull_out = meta_background_group_cull_out;
+  iface->reset_culling = meta_background_group_reset_culling;
 }
 
 static void
 meta_background_group_init (MetaBackgroundGroup *self)
 {
-  self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
-                                            META_TYPE_BACKGROUND_GROUP,
-                                            MetaBackgroundGroupPrivate);
-}
-
-/**
- * meta_background_group_set_clip_region:
- * @self: a #MetaBackgroundGroup
- * @region: (allow-none): the parts of the background to paint
- *
- * Sets the area of the backgrounds that is unobscured by overlapping windows.
- * This is used to optimize and only paint the visible portions.
- */
-void
-meta_background_group_set_clip_region (MetaBackgroundGroup *self,
-                                       cairo_region_t      *region)
-{
-  GList *children, *l;
-
-  children = clutter_actor_get_children (CLUTTER_ACTOR (self));
-  for (l = children; l; l = l->next)
-    {
-      ClutterActor *actor = l->data;
-
-      if (META_IS_BACKGROUND_ACTOR (actor))
-        {
-          meta_background_actor_set_clip_region (META_BACKGROUND_ACTOR (actor), region);
-        }
-      else if (META_IS_BACKGROUND_GROUP (actor))
-        {
-          int x, y;
-
-          if (!meta_actor_is_untransformed (actor, &x, &y))
-            continue;
-
-          cairo_region_translate (region, -x, -y);
-          meta_background_group_set_clip_region (META_BACKGROUND_GROUP (actor), region);
-          cairo_region_translate (region, x, y);
-        }
-    }
-  g_list_free (children);
 }
 
 ClutterActor *

src/compositor/meta-cullable.c

@@ -0,0 +1,191 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/*
+ * Copyright (C) 2013 Red Hat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Written by:
+ *     Owen Taylor <otaylor@redhat.com>
+ *     Ray Strode <rstrode@redhat.com>
+ *     Jasper St. Pierre <jstpierre@mecheye.net>
+ */
+
+#include "config.h"
+#include "meta-cullable.h"
+#include "clutter-utils.h"
+
+G_DEFINE_INTERFACE (MetaCullable, meta_cullable, CLUTTER_TYPE_ACTOR);
+
+/**
+ * SECTION:meta-cullable
+ * @title: MetaCullable
+ * @short_description: CPU culling operations for efficient drawing
+ *
+ * When we are painting a stack of 5-10 large actors, the standard
+ * bottom-to-top method of drawing every actor results in a tremendous
+ * amount of overdraw. If these actors are painting textures like
+ * windows, it can easily max out the available memory bandwidth on a
+ * low-end graphics chipset. It's even worse if window textures are
+ * being accessed over the AGP bus.
+ *
+ * #MetaCullable is our solution. The basic technique applied here is to
+ * do a pre-pass before painting where we walk each actor from top to bottom
+ * and ask each actor to "cull itself out". We pass in a region it can copy
+ * to clip its drawing to, and the actor can subtract its fully opaque pixels
+ * so that actors underneath know not to draw there as well.
+ */
+
+/**
+ * meta_cullable_cull_out_children:
+ * @cullable: The #MetaCullable
+ * @unobscured_region: The unobscured region, as passed into cull_out()
+ * @clip_region: The clip region, as passed into cull_out()
+ *
+ * This is a helper method for actors that want to recurse over their
+ * child actors, and cull them out.
+ *
+ * See #MetaCullable and meta_cullable_cull_out() for more details.
+ */
+void
+meta_cullable_cull_out_children (MetaCullable   *cullable,
+                                 cairo_region_t *unobscured_region,
+                                 cairo_region_t *clip_region)
+{
+  ClutterActor *actor = CLUTTER_ACTOR (cullable);
+  ClutterActor *child;
+  ClutterActorIter iter;
+
+  clutter_actor_iter_init (&iter, actor);
+  while (clutter_actor_iter_prev (&iter, &child))
+    {
+      int x, y;
+
+      if (!CLUTTER_ACTOR_IS_VISIBLE (child))
+        continue;
+
+      /* If an actor has effects applied, then that can change the area
+       * it paints and the opacity, so we no longer can figure out what
+       * portion of the actor is obscured and what portion of the screen
+       * it obscures, so we skip the actor.
+       *
+       * This has a secondary beneficial effect: if a ClutterOffscreenEffect
+       * is applied to an actor, then our clipped redraws interfere with the
+       * caching of the FBO - even if we only need to draw a small portion
+       * of the window right now, ClutterOffscreenEffect may use other portions
+       * of the FBO later. So, skipping actors with effects applied also
+       * prevents these bugs.
+       *
+       * Theoretically, we should check clutter_actor_get_offscreen_redirect()
+       * as well for the same reason, but omitted for simplicity in the
+       * hopes that no-one will do that.
+       */
+      if (clutter_actor_has_effects (child))
+        continue;
+
+      if (!META_IS_CULLABLE (child))
+        continue;
+
+      if (!meta_actor_is_untransformed (child, &x, &y))
+        continue;
+
+      /* Temporarily move to the coordinate system of the actor */
+      cairo_region_translate (unobscured_region, - x, - y);
+      cairo_region_translate (clip_region, - x, - y);
+
+      meta_cullable_cull_out (META_CULLABLE (child), unobscured_region, clip_region);
+
+      cairo_region_translate (unobscured_region, x, y);
+      cairo_region_translate (clip_region, x, y);
+    }
+}
+
+/**
+ * meta_cullable_reset_culling_children:
+ * @cullable: The #MetaCullable
+ *
+ * This is a helper method for actors that want to recurse over their
+ * child actors, and cull them out.
+ *
+ * See #MetaCullable and meta_cullable_reset_culling() for more details.
+ */
+void
+meta_cullable_reset_culling_children (MetaCullable *cullable)
+{
+  ClutterActor *actor = CLUTTER_ACTOR (cullable);
+  ClutterActor *child;
+  ClutterActorIter iter;
+
+  clutter_actor_iter_init (&iter, actor);
+  while (clutter_actor_iter_next (&iter, &child))
+    {
+      if (!META_IS_CULLABLE (child))
+        continue;
+
+      meta_cullable_reset_culling (META_CULLABLE (child));
+    }
+}
+
+static void
+meta_cullable_default_init (MetaCullableInterface *iface)
+{
+}
+
+/**
+ * meta_cullable_cull_out:
+ * @cullable: The #MetaCullable
+ * @unobscured_region: The unobscured region, in @cullable's space.
+ * @clip_region: The clip region, in @cullable's space.
+ *
+ * When #MetaWindowGroup is painted, we walk over its direct cullable
+ * children from top to bottom and ask themselves to "cull out". Cullables
+ * can use @unobscured_region and @clip_region to clip their drawing. Actors
+ * interested in eliminating overdraw should copy the @clip_region and only
+ * paint those parts, as everything else has been obscured by actors above it.
+ *
+ * Actors that may have fully opaque parts should also subtract out a region
+ * that is fully opaque from @unobscured_region and @clip_region.
+ *
+ * @unobscured_region and @clip_region are extremely similar. The difference
+ * is that @clip_region starts off with the stage's clip, if Clutter detects
+ * that we're doing a clipped redraw. @unobscured_region, however, starts off
+ * with the full stage size, so actors that may want to record what parts of
+ * their window are unobscured for e.g. scheduling repaints can do so.
+ *
+ * Actors that have children can also use the meta_cullable_cull_out_children()
+ * helper method to do a simple cull across all their children.
+ */
+void
+meta_cullable_cull_out (MetaCullable   *cullable,
+                        cairo_region_t *unobscured_region,
+                        cairo_region_t *clip_region)
+{
+  META_CULLABLE_GET_IFACE (cullable)->cull_out (cullable, unobscured_region, clip_region);
+}
+
+/**
+ * meta_cullable_reset_culling:
+ * @cullable: The #MetaCullable
+ *
+ * Actors that copied data in their cull_out() implementation can now
+ * reset their data, as the paint is now over. Additional paints may be
+ * done by #ClutterClone or similar, and they should not be affected by
+ * the culling operation.
+ */
+void
+meta_cullable_reset_culling (MetaCullable *cullable)
+{
+  META_CULLABLE_GET_IFACE (cullable)->reset_culling (cullable);
+}

src/compositor/meta-cullable.h

@@ -0,0 +1,68 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright (C) 2013 Red Hat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Written by:
+ *     Owen Taylor <otaylor@redhat.com>
+ *     Ray Strode <rstrode@redhat.com>
+ *     Jasper St. Pierre <jstpierre@mecheye.net>
+ */
+
+#ifndef __META_CULLABLE_H__
+#define __META_CULLABLE_H__
+
+#include <clutter/clutter.h>
+
+G_BEGIN_DECLS
+
+#define META_TYPE_CULLABLE             (meta_cullable_get_type ())
+#define META_CULLABLE(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_CULLABLE, MetaCullable))
+#define META_IS_CULLABLE(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_CULLABLE))
+#define META_CULLABLE_GET_IFACE(obj)   (G_TYPE_INSTANCE_GET_INTERFACE ((obj),  META_TYPE_CULLABLE, MetaCullableInterface))
+
+typedef struct _MetaCullable MetaCullable;
+typedef struct _MetaCullableInterface MetaCullableInterface;
+
+struct _MetaCullableInterface
+{
+  GTypeInterface g_iface;
+
+  void (* cull_out)      (MetaCullable   *cullable,
+                          cairo_region_t *unobscured_region,
+                          cairo_region_t *clip_region);
+  void (* reset_culling) (MetaCullable  *cullable);
+};
+
+GType meta_cullable_get_type (void);
+
+void meta_cullable_cull_out (MetaCullable   *cullable,
+                             cairo_region_t *unobscured_region,
+                             cairo_region_t *clip_region);
+void meta_cullable_reset_culling (MetaCullable *cullable);
+
+/* Utility methods for implementations */
+void meta_cullable_cull_out_children (MetaCullable   *cullable,
+                                      cairo_region_t *unobscured_region,
+                                      cairo_region_t *clip_region);
+void meta_cullable_reset_culling_children (MetaCullable *cullable);
+
+G_END_DECLS
+
+#endif /* __META_CULLABLE_H__ */
+

src/compositor/meta-shaped-texture.c

@@ -30,6 +30,7 @@
 #include <config.h>
 
 #include <meta/meta-shaped-texture.h>
+#include "clutter-utils.h"
 #include "meta-texture-tower.h"
 
 #include <clutter/clutter.h>
@@ -71,6 +72,7 @@ struct _MetaShapedTexturePrivate
 
   cairo_region_t *clip_region;
   cairo_region_t *opaque_region;
+  cairo_region_t *input_shape_region;
 
   guint tex_width, tex_height;
 
@@ -209,6 +211,7 @@ meta_shaped_texture_paint (ClutterActor *actor)
   CoglTexture *paint_tex;
   ClutterActorBox alloc;
   cairo_region_t *blended_region = NULL;
+  CoglPipelineFilter filter;
 
   if (priv->clip_region && cairo_region_is_empty (priv->clip_region))
     return;
@@ -245,6 +248,22 @@ meta_shaped_texture_paint (ClutterActor *actor)
   if (tex_width == 0 || tex_height == 0) /* no contents yet */
     return;
 
+  /* Use nearest-pixel interpolation if the texture is unscaled. This
+   * improves performance, especially with software rendering.
+   */
+
+  filter = COGL_PIPELINE_FILTER_LINEAR;
+
+  if (!clutter_actor_is_in_clone_paint (actor))
+    {
+      int x_origin, y_origin;
+
+      if (meta_actor_is_untransformed (actor,
+                                       &x_origin,
+                                       &y_origin))
+        filter = COGL_PIPELINE_FILTER_NEAREST;
+    }
+
   ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
   fb = cogl_get_draw_framebuffer ();
 
@@ -273,6 +292,7 @@ meta_shaped_texture_paint (ClutterActor *actor)
 
       opaque_pipeline = get_unblended_pipeline (ctx);
       cogl_pipeline_set_layer_texture (opaque_pipeline, 0, paint_tex);
+      cogl_pipeline_set_layer_filters (opaque_pipeline, 0, filter, filter);
 
       n_rects = cairo_region_num_rectangles (region);
       for (i = 0; i < n_rects; i++)
@@ -314,9 +334,11 @@ meta_shaped_texture_paint (ClutterActor *actor)
     {
       pipeline = get_masked_pipeline (ctx);
       cogl_pipeline_set_layer_texture (pipeline, 1, priv->mask_texture);
+      cogl_pipeline_set_layer_filters (pipeline, 1, filter, filter);
     }
 
   cogl_pipeline_set_layer_texture (pipeline, 0, paint_tex);
+  cogl_pipeline_set_layer_filters (pipeline, 0, filter, filter);
 
   {
     CoglColor color;
@@ -373,45 +395,60 @@ meta_shaped_texture_pick (ClutterActor       *actor,
   MetaShapedTexture *stex = (MetaShapedTexture *) actor;
   MetaShapedTexturePrivate *priv = stex->priv;
 
+  if (!clutter_actor_should_pick_paint (actor) ||
+      (priv->clip_region && cairo_region_is_empty (priv->clip_region)))
+    return;
+
   /* If there is no region then use the regular pick */
-  if (priv->mask_texture == NULL)
+  if (priv->input_shape_region == NULL)
     CLUTTER_ACTOR_CLASS (meta_shaped_texture_parent_class)->pick (actor, color);
-  else if (clutter_actor_should_pick_paint (actor))
+  else
     {
-      CoglTexture *paint_tex;
-      ClutterActorBox alloc;
-      guint tex_width, tex_height;
+      int n_rects;
+      float *rectangles;
+      int i;
       CoglPipeline *pipeline;
       CoglContext *ctx;
       CoglFramebuffer *fb;
       CoglColor cogl_color;
 
-      paint_tex = COGL_TEXTURE (priv->texture);
+      /* Note: We don't bother trying to intersect the pick and clip regions
+       * since needing to copy the region, do the intersection, and probably
+       * increase the number of rectangles seems more likely to have a negative
+       * effect.
+       *
+       * NB: Most of the time when just using rectangles for picking then
+       * picking shouldn't involve any rendering, and minimizing the number of
+       * rectangles has more benefit than reducing the area of the pick
+       * region.
+       */
 
-      if (paint_tex == NULL)
-        return;
+      n_rects = cairo_region_num_rectangles (priv->input_shape_region);
+      rectangles = g_alloca (sizeof (float) * 4 * n_rects);
 
-      tex_width = cogl_texture_get_width (paint_tex);
-      tex_height = cogl_texture_get_height (paint_tex);
+      for (i = 0; i < n_rects; i++)
+        {
+          cairo_rectangle_int_t rect;
+          int pos = i * 4;
 
-      if (tex_width == 0 || tex_height == 0) /* no contents yet */
-        return;
+          cairo_region_get_rectangle (priv->input_shape_region, i, &rect);
+
+          rectangles[pos] = rect.x;
+          rectangles[pos + 1] = rect.y;
+          rectangles[pos + 2] = rect.x + rect.width;
+          rectangles[pos + 3] = rect.y + rect.height;
+        }
 
       ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
       fb = cogl_get_draw_framebuffer ();
 
       cogl_color_init_from_4ub (&cogl_color, color->red, color->green, color->blue, color->alpha);
 
-      pipeline = get_masked_pipeline (ctx);
-      cogl_pipeline_set_layer_texture (pipeline, 1, priv->mask_texture);
+      pipeline = cogl_pipeline_new (ctx);
       cogl_pipeline_set_color (pipeline, &cogl_color);
 
-      clutter_actor_get_allocation_box (actor, &alloc);
-
-      cogl_framebuffer_draw_rectangle (fb, pipeline,
-                                       0, 0,
-                                       alloc.x2 - alloc.x1,
-                                       alloc.y2 - alloc.y1);
+      cogl_framebuffer_draw_rectangles (fb, pipeline,
+                                        rectangles, n_rects);
       cogl_object_unref (pipeline);
     }
 }
@@ -670,6 +707,41 @@ meta_shaped_texture_get_texture (MetaShapedTexture *stex)
   return COGL_TEXTURE (stex->priv->texture);
 }
 
+/**
+ * meta_shaped_texture_set_input_shape_region:
+ * @stex: a #MetaShapedTexture
+ * @shape_region: the region of the texture that should respond to
+ *    input.
+ *
+ * Determines what region of the texture should accept input. For
+ * X based windows this is defined by the ShapeInput region of the
+ * window.
+ */
+void
+meta_shaped_texture_set_input_shape_region (MetaShapedTexture *stex,
+                                            cairo_region_t    *shape_region)
+{
+  MetaShapedTexturePrivate *priv;
+
+  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
+
+  priv = stex->priv;
+
+  if (priv->input_shape_region != NULL)
+    {
+      cairo_region_destroy (priv->input_shape_region);
+      priv->input_shape_region = NULL;
+    }
+
+  if (shape_region != NULL)
+    {
+      cairo_region_reference (shape_region);
+      priv->input_shape_region = shape_region;
+    }
+
+  clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
+}
+
 /**
  * meta_shaped_texture_set_clip_region:
  * @stex: a #MetaShapedTexture

src/compositor/meta-window-actor-private.h

@@ -55,14 +55,6 @@ void     meta_window_actor_set_updates_frozen  (MetaWindowActor *self,
 void     meta_window_actor_queue_frame_drawn   (MetaWindowActor *self,
                                                 gboolean         no_delay_frame);
 
-cairo_region_t *meta_window_actor_get_obscured_region (MetaWindowActor *self);
-
-void meta_window_actor_set_clip_region         (MetaWindowActor *self,
-                                                cairo_region_t  *clip_region);
-void meta_window_actor_set_clip_region_beneath (MetaWindowActor *self,
-                                                cairo_region_t  *beneath_region);
-void meta_window_actor_reset_clip_regions      (MetaWindowActor *self);
-
 void meta_window_actor_set_unobscured_region      (MetaWindowActor *self,
                                                    cairo_region_t  *unobscured_region);
 

src/compositor/meta-window-actor.c

@@ -32,6 +32,7 @@
 #include "meta-texture-rectangle.h"
 #include "region-utils.h"
 #include "monitor-private.h"
+#include "meta-cullable.h"
 
 enum {
   POSITION_CHANGED,
@@ -45,7 +46,6 @@ static guint signals[LAST_SIGNAL] = {0};
 struct _MetaWindowActorPrivate
 {
   MetaWindow       *window;
-  Window            xwindow;
   MetaScreen       *screen;
 
   ClutterActor     *actor;
@@ -68,10 +68,10 @@ struct _MetaWindowActorPrivate
 
   Damage            damage;
 
-  guint8            opacity;
-
   /* A region that matches the shape of the window, including frame bounds */
   cairo_region_t   *shape_region;
+  /* If the window has an input shape, a region that matches the shape */
+  cairo_region_t   *input_region;
   /* The opaque region, from _NET_WM_OPAQUE_REGION, intersected with
    * the shape region. */
   cairo_region_t   *opaque_region;
@@ -109,7 +109,6 @@ struct _MetaWindowActorPrivate
   GList            *frames;
 
   guint		    visible                : 1;
-  guint		    mapped                 : 1;
   guint		    argb32                 : 1;
   guint		    disposed               : 1;
   guint             redecorating           : 1;
@@ -152,8 +151,6 @@ struct _FrameData
 enum
 {
   PROP_META_WINDOW = 1,
-  PROP_META_SCREEN,
-  PROP_X_WINDOW,
   PROP_NO_SHADOW,
   PROP_SHADOW_CLASS
 };
@@ -189,7 +186,10 @@ static void do_send_frame_timings (MetaWindowActor  *self,
                                    gint             refresh_interval,
                                    gint64           presentation_time);
 
-G_DEFINE_TYPE (MetaWindowActor, meta_window_actor, CLUTTER_TYPE_ACTOR);
+static void cullable_iface_init (MetaCullableInterface *iface);
+
+G_DEFINE_TYPE_WITH_CODE (MetaWindowActor, meta_window_actor, CLUTTER_TYPE_ACTOR,
+                         G_IMPLEMENT_INTERFACE (META_TYPE_CULLABLE, cullable_iface_init));
 
 static void
 frame_data_free (FrameData *frame)
@@ -219,33 +219,12 @@ meta_window_actor_class_init (MetaWindowActorClass *klass)
                                "MetaWindow",
                                "The displayed MetaWindow",
                                META_TYPE_WINDOW,
-                               G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
+                               G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
 
   g_object_class_install_property (object_class,
                                    PROP_META_WINDOW,
                                    pspec);
 
-  pspec = g_param_spec_pointer ("meta-screen",
-				"MetaScreen",
-				"MetaScreen",
-				G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
-
-  g_object_class_install_property (object_class,
-                                   PROP_META_SCREEN,
-                                   pspec);
-
-  pspec = g_param_spec_ulong ("x-window",
-			      "Window",
-			      "Window",
-			      0,
-			      G_MAXULONG,
-			      0,
-			      G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
-
-  g_object_class_install_property (object_class,
-                                   PROP_X_WINDOW,
-                                   pspec);
-
   pspec = g_param_spec_boolean ("no-shadow",
                                 "No shadow",
                                 "Do not add shaddow to this window",
@@ -288,7 +267,6 @@ meta_window_actor_init (MetaWindowActor *self)
   priv = self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
 						   META_TYPE_WINDOW_ACTOR,
 						   MetaWindowActorPrivate);
-  priv->opacity = 0xff;
   priv->shadow_class = NULL;
 }
 
@@ -299,11 +277,9 @@ window_decorated_notify (MetaWindow *mw,
 {
   MetaWindowActor        *self     = META_WINDOW_ACTOR (data);
   MetaWindowActorPrivate *priv     = self->priv;
-  MetaFrame              *frame    = meta_window_get_frame (mw);
   MetaScreen             *screen   = priv->screen;
   MetaDisplay            *display  = meta_screen_get_display (screen);
   Display                *xdisplay = meta_display_get_xdisplay (display);
-  Window                  new_xwindow;
 
   /*
    * Basically, we have to reconstruct the the internals of this object
@@ -311,11 +287,6 @@ window_decorated_notify (MetaWindow *mw,
    */
   priv->redecorating = TRUE;
 
-  if (frame)
-    new_xwindow = meta_frame_get_xwindow (frame);
-  else
-    new_xwindow = meta_window_get_xwindow (mw);
-
   meta_window_actor_detach (self);
 
   /*
@@ -330,8 +301,6 @@ window_decorated_notify (MetaWindow *mw,
       priv->damage = None;
     }
 
-  priv->xwindow = new_xwindow;
-
   /*
    * Recreate the contents.
    */
@@ -346,18 +315,30 @@ window_appears_focused_notify (MetaWindow *mw,
   clutter_actor_queue_redraw (CLUTTER_ACTOR (data));
 }
 
+static gboolean
+is_non_opaque (MetaWindowActor *self)
+{
+  MetaWindowActorPrivate *priv = self->priv;
+  MetaWindow *window = priv->window;
+
+  return priv->argb32 || (window->opacity != 0xFF);
+}
+
 static void
 meta_window_actor_constructed (GObject *object)
 {
   MetaWindowActor        *self     = META_WINDOW_ACTOR (object);
   MetaWindowActorPrivate *priv     = self->priv;
-  MetaScreen             *screen   = priv->screen;
-  MetaDisplay            *display  = meta_screen_get_display (screen);
-  Window                  xwindow  = priv->xwindow;
   MetaWindow             *window   = priv->window;
+  MetaScreen             *screen   = meta_window_get_screen (window);
+  MetaDisplay            *display  = meta_screen_get_display (screen);
   Display                *xdisplay = meta_display_get_xdisplay (display);
   XRenderPictFormat      *format;
+  Window                  xwindow;
 
+  xwindow = meta_window_get_toplevel_xwindow (window);
+
+  priv->screen = screen;
   priv->damage = XDamageCreate (xdisplay, xwindow,
                                 XDamageReportBoundingBox);
 
@@ -380,19 +361,6 @@ meta_window_actor_constructed (GObject *object)
        * We will release it in dispose().
        */
       g_object_ref (priv->actor);
-
-      g_signal_connect_object (window, "notify::decorated",
-                               G_CALLBACK (window_decorated_notify), self, 0);
-      g_signal_connect_object (window, "notify::appears-focused",
-                               G_CALLBACK (window_appears_focused_notify), self, 0);
-    }
-  else
-    {
-      /*
-       * This is the case where existing window is gaining/loosing frame.
-       * Just ensure the actor is top most (i.e., above shadow).
-       */
-      clutter_actor_set_child_above_sibling (CLUTTER_ACTOR (self), priv->actor, NULL);
     }
 
   meta_window_actor_update_opacity (self);
@@ -432,6 +400,7 @@ meta_window_actor_dispose (GObject *object)
 
   g_clear_pointer (&priv->unobscured_region, cairo_region_destroy);
   g_clear_pointer (&priv->shape_region, cairo_region_destroy);
+  g_clear_pointer (&priv->input_region, cairo_region_destroy);
   g_clear_pointer (&priv->opaque_region, cairo_region_destroy);
   g_clear_pointer (&priv->shadow_clip, cairo_region_destroy);
 
@@ -484,17 +453,12 @@ meta_window_actor_set_property (GObject      *object,
   switch (prop_id)
     {
     case PROP_META_WINDOW:
-      {
-        if (priv->window)
-          g_object_unref (priv->window);
-        priv->window = g_value_dup_object (value);
-      }
-      break;
-    case PROP_META_SCREEN:
-      priv->screen = g_value_get_pointer (value);
-      break;
-    case PROP_X_WINDOW:
-      priv->xwindow = g_value_get_ulong (value);
+      priv->window = g_value_dup_object (value);
+
+      g_signal_connect_object (priv->window, "notify::decorated",
+                               G_CALLBACK (window_decorated_notify), self, 0);
+      g_signal_connect_object (priv->window, "notify::appears-focused",
+                               G_CALLBACK (window_appears_focused_notify), self, 0);
       break;
     case PROP_NO_SHADOW:
       {
@@ -540,12 +504,6 @@ meta_window_actor_get_property (GObject      *object,
     case PROP_META_WINDOW:
       g_value_set_object (value, priv->window);
       break;
-    case PROP_META_SCREEN:
-      g_value_set_pointer (value, priv->screen);
-      break;
-    case PROP_X_WINDOW:
-      g_value_set_ulong (value, priv->xwindow);
-      break;
     case PROP_NO_SHADOW:
       g_value_set_boolean (value, priv->no_shadow);
       break;
@@ -643,7 +601,7 @@ clip_shadow_under_window (MetaWindowActor *self)
 {
   MetaWindowActorPrivate *priv = self->priv;
 
-  return (priv->argb32 || priv->opacity != 0xff) && priv->window->frame;
+  return is_non_opaque (self) && priv->window->frame;
 }
 
 static void
@@ -669,6 +627,7 @@ meta_window_actor_paint (ClutterActor *actor)
       MetaShadowParams params;
       cairo_rectangle_int_t shape_bounds;
       cairo_region_t *clip = priv->shadow_clip;
+      MetaWindow *window = priv->window;
 
       meta_window_actor_get_shape_bounds (self, &shape_bounds);
       meta_window_actor_get_shadow_params (self, appears_focused, &params);
@@ -692,7 +651,7 @@ meta_window_actor_paint (ClutterActor *actor)
                          params.y_offset + shape_bounds.y,
                          shape_bounds.width,
                          shape_bounds.height,
-                         (clutter_actor_get_paint_opacity (actor) * params.opacity * priv->opacity) / (255 * 255),
+                         (clutter_actor_get_paint_opacity (actor) * params.opacity * window->opacity) / (255 * 255),
                          clip,
                          clip_shadow_under_window (self)); /* clip_strictly - not just as an optimization */
 
@@ -779,10 +738,10 @@ meta_window_actor_has_shadow (MetaWindowActor *self)
     return TRUE;
 
   /*
-   * Do not add shadows to ARGB windows; eventually we should generate a
-   * shadow from the input shape for such windows.
+   * Do not add shadows to non-opaque windows; eventually we should generate
+   * a shadow from the input shape for such windows.
    */
-  if (priv->argb32 || priv->opacity != 0xff)
+  if (is_non_opaque (self))
     return FALSE;
 
   /*
@@ -813,20 +772,6 @@ meta_window_actor_has_shadow (MetaWindowActor *self)
   return FALSE;
 }
 
-/**
- * meta_window_actor_get_x_window: (skip)
- * @self: a #MetaWindowActor
- *
- */
-Window
-meta_window_actor_get_x_window (MetaWindowActor *self)
-{
-  if (!self)
-    return None;
-
-  return self->priv->xwindow;
-}
-
 /**
  * meta_window_actor_get_meta_window:
  * @self: a #MetaWindowActor
@@ -973,7 +918,7 @@ queue_send_frame_messages_timeout (MetaWindowActor *self)
     }
 
   interval = (int)(1000000 / refresh_rate) * 6;
-  offset = MAX (0, current_time - priv->frame_drawn_time + interval) / 1000;
+  offset = MAX (0, priv->frame_drawn_time + interval - current_time) / 1000;
 
  /* The clutter master clock source has already been added with META_PRIORITY_REDRAW,
   * so the timer will run *after* the clutter frame handling, if a frame is ready
@@ -994,7 +939,7 @@ meta_window_actor_damage_all (MetaWindowActor *self)
 
   texture = meta_shaped_texture_get_texture (META_SHAPED_TEXTURE (priv->actor));
 
-  if (!priv->mapped || priv->needs_pixmap)
+  if (priv->needs_pixmap)
     return;
 
   redraw_queued = meta_shaped_texture_update_area (META_SHAPED_TEXTURE (priv->actor),
@@ -1083,7 +1028,7 @@ meta_window_actor_queue_frame_drawn (MetaWindowActor *self,
         {
           queue_send_frame_messages_timeout (self);
         }
-      else if (priv->mapped && !priv->needs_pixmap)
+      else
         {
           const cairo_rectangle_int_t clip = { 0, 0, 1, 1 };
           clutter_actor_queue_redraw_with_clip (priv->actor, &clip);
@@ -1115,9 +1060,6 @@ meta_window_actor_queue_create_pixmap (MetaWindowActor *self)
 
   priv->needs_pixmap = TRUE;
 
-  if (!priv->mapped)
-    return;
-
   if (is_frozen (self))
     return;
 
@@ -1331,7 +1273,7 @@ meta_window_actor_should_unredirect (MetaWindowActor *self)
   if (meta_window_requested_dont_bypass_compositor (metaWindow))
     return FALSE;
 
-  if (priv->opacity != 0xff)
+  if (metaWindow->opacity != 0xFF)
     return FALSE;
 
   if (metaWindow->shape_region != NULL)
@@ -1362,7 +1304,7 @@ meta_window_actor_set_redirected (MetaWindowActor *self, gboolean state)
   MetaDisplay *display = meta_window_get_display (metaWindow);
 
   Display *xdisplay = meta_display_get_xdisplay (display);
-  Window  xwin = meta_window_actor_get_x_window (self);
+  Window  xwin = meta_window_get_toplevel_xwindow (metaWindow);
 
   if (state)
     {
@@ -1616,22 +1558,10 @@ meta_window_actor_new (MetaWindow *window)
   MetaCompScreen         *info = meta_screen_get_compositor_data (screen);
   MetaWindowActor        *self;
   MetaWindowActorPrivate *priv;
-  MetaFrame		 *frame;
-  Window		  top_window;
   ClutterActor           *window_group;
 
-  frame = meta_window_get_frame (window);
-  if (frame)
-    top_window = meta_frame_get_xwindow (frame);
-  else
-    top_window = meta_window_get_xwindow (window);
-
-  meta_verbose ("add window: Meta %p, xwin 0x%x\n", window, (guint)top_window);
-
   self = g_object_new (META_TYPE_WINDOW_ACTOR,
-                       "meta-window",         window,
-                       "x-window",            top_window,
-                       "meta-screen",         screen,
+                       "meta-window", window,
                        NULL);
 
   priv = self->priv;
@@ -1639,10 +1569,6 @@ meta_window_actor_new (MetaWindow *window)
   priv->last_width = -1;
   priv->last_height = -1;
 
-  priv->mapped = meta_window_toplevel_is_mapped (priv->window);
-  if (priv->mapped)
-    meta_window_actor_queue_create_pixmap (self);
-
   meta_window_actor_set_updates_frozen (self,
                                         meta_window_updates_are_frozen (priv->window));
 
@@ -1676,34 +1602,6 @@ meta_window_actor_new (MetaWindow *window)
   return self;
 }
 
-void
-meta_window_actor_mapped (MetaWindowActor *self)
-{
-  MetaWindowActorPrivate *priv = self->priv;
-
-  g_return_if_fail (!priv->mapped);
-
-  priv->mapped = TRUE;
-
-  meta_window_actor_queue_create_pixmap (self);
-}
-
-void
-meta_window_actor_unmapped (MetaWindowActor *self)
-{
-  MetaWindowActorPrivate *priv = self->priv;
-
-  g_return_if_fail (priv->mapped);
-
-  priv->mapped = FALSE;
-
-  if (meta_window_actor_effect_in_progress (self))
-    return;
-
-  meta_window_actor_detach (self);
-  priv->needs_pixmap = FALSE;
-}
-
 /**
  * meta_window_actor_get_obscured_region:
  * @self: a #MetaWindowActor
@@ -1714,12 +1612,13 @@ meta_window_actor_unmapped (MetaWindowActor *self)
  * Return value: (transfer none): the area obscured by the window,
  *  %NULL is the same as an empty region.
  */
-cairo_region_t *
+static cairo_region_t *
 meta_window_actor_get_obscured_region (MetaWindowActor *self)
 {
   MetaWindowActorPrivate *priv = self->priv;
+  MetaWindow *window = priv->window;
 
-  if (priv->back_pixmap && priv->opacity == 0xff && !priv->window->shaded)
+  if (priv->back_pixmap && window->opacity != 0xFF && !priv->window->shaded)
     return priv->opaque_region;
   else
     return NULL;
@@ -1803,7 +1702,7 @@ meta_window_actor_set_unobscured_region (MetaWindowActor *self,
  * not drawn in this frame.
  * This will be set before painting then unset afterwards.
  */
-void
+static void
 meta_window_actor_set_clip_region (MetaWindowActor *self,
                                    cairo_region_t  *clip_region)
 {
@@ -1825,7 +1724,7 @@ meta_window_actor_set_clip_region (MetaWindowActor *self,
  * shadow hid by the window itself. This will be set before painting
  * then unset afterwards.
  */
-void
+static void
 meta_window_actor_set_clip_region_beneath (MetaWindowActor *self,
                                            cairo_region_t  *beneath_region)
 {
@@ -1845,16 +1744,38 @@ meta_window_actor_set_clip_region_beneath (MetaWindowActor *self,
     }
 }
 
-/**
- * meta_window_actor_reset_clip_regions:
- * @self: a #MetaWindowActor
- *
- * Unsets the regions set by meta_window_actor_set_clip_region() and
- * meta_window_actor_set_clip_region_beneath()
- */
-void
-meta_window_actor_reset_clip_regions (MetaWindowActor *self)
+static void
+meta_window_actor_cull_out (MetaCullable   *cullable,
+                            cairo_region_t *unobscured_region,
+                            cairo_region_t *clip_region)
 {
+  MetaWindowActor *self = META_WINDOW_ACTOR (cullable);
+  MetaCompScreen *info = meta_screen_get_compositor_data (self->priv->screen);
+
+  /* Don't do any culling for the unredirected window */
+  if (self == info->unredirected_window)
+    return;
+
+  meta_window_actor_set_unobscured_region (self, unobscured_region);
+  meta_window_actor_set_clip_region (self, clip_region);
+
+  if (clutter_actor_get_paint_opacity (CLUTTER_ACTOR (self)) == 0xff)
+    {
+      cairo_region_t *obscured_region = meta_window_actor_get_obscured_region (self);
+      if (obscured_region)
+        {
+          cairo_region_subtract (unobscured_region, obscured_region);
+          cairo_region_subtract (clip_region, obscured_region);
+        }
+    }
+
+  meta_window_actor_set_clip_region_beneath (self, clip_region);
+}
+
+static void
+meta_window_actor_reset_culling (MetaCullable *cullable)
+{
+  MetaWindowActor *self = META_WINDOW_ACTOR (cullable);
   MetaWindowActorPrivate *priv = self->priv;
 
   meta_shaped_texture_set_clip_region (META_SHAPED_TEXTURE (priv->actor),
@@ -1862,6 +1783,13 @@ meta_window_actor_reset_clip_regions (MetaWindowActor *self)
   g_clear_pointer (&priv->shadow_clip, cairo_region_destroy);
 }
 
+static void
+cullable_iface_init (MetaCullableInterface *iface)
+{
+  iface->cull_out = meta_window_actor_cull_out;
+  iface->reset_culling = meta_window_actor_reset_culling;
+}
+
 static void
 check_needs_pixmap (MetaWindowActor *self)
 {
@@ -1870,15 +1798,12 @@ check_needs_pixmap (MetaWindowActor *self)
   MetaDisplay         *display  = meta_screen_get_display (screen);
   Display             *xdisplay = meta_display_get_xdisplay (display);
   MetaCompScreen      *info     = meta_screen_get_compositor_data (screen);
+  Window               xwindow  = meta_window_get_toplevel_xwindow (priv->window);
   MetaCompositor      *compositor;
-  Window               xwindow  = priv->xwindow;
 
   if (!priv->needs_pixmap)
     return;
 
-  if (!priv->mapped)
-    return;
-
   if (xwindow == meta_screen_get_xroot (screen) ||
       xwindow == clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage)))
     return;
@@ -1936,7 +1861,7 @@ check_needs_pixmap (MetaWindowActor *self)
       if (G_UNLIKELY (!cogl_texture_pixmap_x11_is_using_tfp_extension (COGL_TEXTURE_PIXMAP_X11 (texture))))
         g_warning ("NOTE: Not using GLX TFP!\n");
 
-      /* ::size-changed is supposed to refer to meta_window_get_outer_rect().
+      /* ::size-changed is supposed to refer to meta_window_get_frame_rect().
        * Emitting it here works pretty much OK because a new value of the
        * *input* rect (which is the outer rect with the addition of invisible
        * borders) forces a new pixmap and we get here. In the rare case where
@@ -1964,9 +1889,6 @@ check_needs_shadow (MetaWindowActor *self)
   gboolean should_have_shadow;
   gboolean appears_focused;
 
-  if (!priv->mapped)
-    return;
-
   /* Calling meta_window_actor_has_shadow() here at every pre-paint is cheap
    * and avoids the need to explicitly handle window type changes, which
    * we would do if tried to keep track of when we might be adding or removing
@@ -2032,7 +1954,7 @@ meta_window_actor_process_damage (MetaWindowActor    *self,
   if (meta_window_is_fullscreen (priv->window) && g_list_last (info->windows)->data == self && !priv->unredirected)
     {
       MetaRectangle window_rect;
-      meta_window_get_outer_rect (priv->window, &window_rect);
+      meta_window_get_frame_rect (priv->window, &window_rect);
 
       if (window_rect.x == event->area.x &&
           window_rect.y == event->area.y &&
@@ -2070,7 +1992,7 @@ meta_window_actor_process_damage (MetaWindowActor    *self,
       return;
     }
 
-  if (!priv->mapped || priv->needs_pixmap)
+  if (priv->needs_pixmap)
     return;
 
   redraw_queued = meta_shaped_texture_update_area (META_SHAPED_TEXTURE (priv->actor),
@@ -2256,9 +2178,46 @@ meta_window_actor_update_shape_region (MetaWindowActor       *self,
   priv->shape_region = region;
 
   g_clear_pointer (&priv->shadow_shape, meta_window_shape_unref);
+
   meta_window_actor_invalidate_shadow (self);
 }
 
+static void
+meta_window_actor_update_input_region (MetaWindowActor       *self,
+                                       cairo_rectangle_int_t *client_area)
+{
+  MetaWindowActorPrivate *priv = self->priv;
+  MetaShapedTexture *stex = META_SHAPED_TEXTURE (priv->actor);
+  cairo_region_t *region = NULL;
+
+  if (priv->window->frame != NULL && priv->window->input_region != NULL)
+    {
+      region = meta_frame_get_frame_bounds (priv->window->frame);
+
+      cairo_region_subtract_rectangle (region, client_area);
+
+      /* input_region is in client window coordinates, so translate the
+       * input region into that coordinate system and back */
+      cairo_region_translate (region, -client_area->x, -client_area->y);
+      cairo_region_union (region, priv->window->input_region);
+      cairo_region_translate (region, client_area->x, client_area->y);
+    }
+  else if (priv->window->input_region != NULL)
+    {
+      region = cairo_region_reference (priv->window->input_region);
+    }
+  else
+    {
+      /* If we don't have a shape on the server, that means that
+       * we have an implicit shape of one rectangle covering the
+       * entire window. */
+      region = cairo_region_create_rectangle (client_area);
+    }
+
+  meta_shaped_texture_set_input_shape_region (stex, region);
+  cairo_region_destroy (region);
+}
+
 static void
 meta_window_actor_update_opaque_region (MetaWindowActor *self)
 {
@@ -2302,9 +2261,6 @@ check_needs_reshape (MetaWindowActor *self)
   MetaFrameBorders borders;
   cairo_rectangle_int_t client_area;
 
-  if (!priv->mapped)
-    return;
-
   if (!priv->needs_reshape)
     return;
 
@@ -2319,10 +2275,10 @@ check_needs_reshape (MetaWindowActor *self)
     client_area.height = priv->window->rect.height;
 
   meta_window_actor_update_shape_region (self, &client_area);
+  meta_window_actor_update_input_region (self, &client_area);
   meta_window_actor_update_opaque_region (self);
 
   priv->needs_reshape = FALSE;
-  meta_window_actor_invalidate_shadow (self);
 }
 
 void
@@ -2567,23 +2523,9 @@ void
 meta_window_actor_update_opacity (MetaWindowActor *self)
 {
   MetaWindowActorPrivate *priv = self->priv;
-  MetaDisplay *display = meta_screen_get_display (priv->screen);
-  MetaCompositor *compositor = meta_display_get_compositor (display);
-  Window xwin = meta_window_get_xwindow (priv->window);
-  gulong value;
-  guint8 opacity;
+  MetaWindow *window = priv->window;
 
-  if (meta_prop_get_cardinal (display, xwin,
-                              compositor->atom_net_wm_window_opacity,
-                              &value))
-    {
-      opacity = (guint8)((gfloat)value * 255.0 / ((gfloat)0xffffffff));
-    }
-  else
-    opacity = 255;
-
-  self->priv->opacity = opacity;
-  clutter_actor_set_opacity (self->priv->actor, opacity);
+  clutter_actor_set_opacity (self->priv->actor, window->opacity);
 }
 
 void

src/compositor/meta-window-group.c

@@ -11,8 +11,8 @@
 #include "compositor-private.h"
 #include "meta-window-actor-private.h"
 #include "meta-window-group.h"
-#include "meta-background-actor-private.h"
-#include "meta-background-group-private.h"
+#include "window-private.h"
+#include "meta-cullable.h"
 
 struct _MetaWindowGroupClass
 {
@@ -26,7 +26,10 @@ struct _MetaWindowGroup
   MetaScreen *screen;
 };
 
-G_DEFINE_TYPE (MetaWindowGroup, meta_window_group, CLUTTER_TYPE_ACTOR);
+static void cullable_iface_init (MetaCullableInterface *iface);
+
+G_DEFINE_TYPE_WITH_CODE (MetaWindowGroup, meta_window_group, CLUTTER_TYPE_ACTOR,
+                         G_IMPLEMENT_INTERFACE (META_TYPE_CULLABLE, cullable_iface_init));
 
 /* Help macros to scale from OpenGL <-1,1> coordinates system to
  * window coordinates ranging [0,window-size]. Borrowed from clutter-utils.c
@@ -86,6 +89,27 @@ painting_untransformed (MetaWindowGroup *window_group,
   return meta_actor_vertices_are_untransformed (vertices, width, height, x_origin, y_origin);
 }
 
+static void
+meta_window_group_cull_out (MetaCullable   *cullable,
+                            cairo_region_t *unobscured_region,
+                            cairo_region_t *clip_region)
+{
+  meta_cullable_cull_out_children (cullable, unobscured_region, clip_region);
+}
+
+static void
+meta_window_group_reset_culling (MetaCullable *cullable)
+{
+  meta_cullable_reset_culling_children (cullable);
+}
+
+static void
+cullable_iface_init (MetaCullableInterface *iface)
+{
+  iface->cull_out = meta_window_group_cull_out;
+  iface->reset_culling = meta_window_group_reset_culling;
+}
+
 static void
 meta_window_group_paint (ClutterActor *actor)
 {
@@ -94,13 +118,13 @@ meta_window_group_paint (ClutterActor *actor)
   ClutterActorIter iter;
   ClutterActor *child;
   cairo_rectangle_int_t visible_rect, clip_rect;
+  int paint_x_offset, paint_y_offset;
   int paint_x_origin, paint_y_origin;
   int actor_x_origin, actor_y_origin;
-  int paint_x_offset, paint_y_offset;
 
   MetaWindowGroup *window_group = META_WINDOW_GROUP (actor);
-  MetaCompScreen *info = meta_screen_get_compositor_data (window_group->screen);
   ClutterActor *stage = clutter_actor_get_stage (actor);
+  MetaCompScreen *info = meta_screen_get_compositor_data (window_group->screen);
 
   /* Start off by treating all windows as completely unobscured, so damage anywhere
    * in a window queues redraws, but confine it more below. */
@@ -134,9 +158,6 @@ meta_window_group_paint (ClutterActor *actor)
       return;
     }
 
-  paint_x_offset = paint_x_origin - actor_x_origin;
-  paint_y_offset = paint_y_origin - actor_y_origin;
-
   visible_rect.x = visible_rect.y = 0;
   visible_rect.width = clutter_actor_get_width (CLUTTER_ACTOR (stage));
   visible_rect.height = clutter_actor_get_height (CLUTTER_ACTOR (stage));
@@ -154,134 +175,54 @@ meta_window_group_paint (ClutterActor *actor)
 
   clip_region = cairo_region_create_rectangle (&clip_rect);
 
+  paint_x_offset = paint_x_origin - actor_x_origin;
+  paint_y_offset = paint_y_origin - actor_y_origin;
+  cairo_region_translate (clip_region, -paint_x_offset, -paint_y_offset);
+
   if (info->unredirected_window != NULL)
     {
       cairo_rectangle_int_t unredirected_rect;
       MetaWindow *window = meta_window_actor_get_meta_window (info->unredirected_window);
 
-      meta_window_get_outer_rect (window, (MetaRectangle *)&unredirected_rect);
+      meta_window_get_frame_rect (window, (MetaRectangle *)&unredirected_rect);
       cairo_region_subtract_rectangle (unobscured_region, &unredirected_rect);
       cairo_region_subtract_rectangle (clip_region, &unredirected_rect);
     }
 
-  /* We walk the list from top to bottom (opposite of painting order),
-   * and subtract the opaque area of each window out of the visible
-   * region that we pass to the windows below.
-   */
-  clutter_actor_iter_init (&iter, actor);
-  while (clutter_actor_iter_prev (&iter, &child))
-    {
-      if (!CLUTTER_ACTOR_IS_VISIBLE (child))
-        continue;
-
-      if (info->unredirected_window != NULL &&
-          child == CLUTTER_ACTOR (info->unredirected_window))
-        continue;
-
-      /* If an actor has effects applied, then that can change the area
-       * it paints and the opacity, so we no longer can figure out what
-       * portion of the actor is obscured and what portion of the screen
-       * it obscures, so we skip the actor.
-       *
-       * This has a secondary beneficial effect: if a ClutterOffscreenEffect
-       * is applied to an actor, then our clipped redraws interfere with the
-       * caching of the FBO - even if we only need to draw a small portion
-       * of the window right now, ClutterOffscreenEffect may use other portions
-       * of the FBO later. So, skipping actors with effects applied also
-       * prevents these bugs.
-       *
-       * Theoretically, we should check clutter_actor_get_offscreen_redirect()
-       * as well for the same reason, but omitted for simplicity in the
-       * hopes that no-one will do that.
-       */
-      if (clutter_actor_has_effects (child))
-        continue;
-
-      if (META_IS_WINDOW_ACTOR (child))
-        {
-          MetaWindowActor *window_actor = META_WINDOW_ACTOR (child);
-          int x, y;
-
-          if (!meta_actor_is_untransformed (CLUTTER_ACTOR (window_actor), &x, &y))
-            continue;
-
-          x += paint_x_offset;
-          y += paint_y_offset;
-
-
-          /* Temporarily move to the coordinate system of the actor */
-          cairo_region_translate (unobscured_region, - x, - y);
-          cairo_region_translate (clip_region, - x, - y);
-
-          meta_window_actor_set_unobscured_region (window_actor, unobscured_region);
-          meta_window_actor_set_clip_region (window_actor, clip_region);
-
-          if (clutter_actor_get_paint_opacity (CLUTTER_ACTOR (window_actor)) == 0xff)
-            {
-              cairo_region_t *obscured_region = meta_window_actor_get_obscured_region (window_actor);
-              if (obscured_region)
-                {
-                  cairo_region_subtract (unobscured_region, obscured_region);
-                  cairo_region_subtract (clip_region, obscured_region);
-                }
-            }
-
-          meta_window_actor_set_clip_region_beneath (window_actor, clip_region);
-
-          cairo_region_translate (unobscured_region, x, y);
-          cairo_region_translate (clip_region, x, y);
-        }
-      else if (META_IS_BACKGROUND_ACTOR (child) ||
-               META_IS_BACKGROUND_GROUP (child))
-        {
-          int x, y;
-
-          if (!meta_actor_is_untransformed (child, &x, &y))
-            continue;
-
-          x += paint_x_offset;
-          y += paint_y_offset;
-
-          cairo_region_translate (clip_region, - x, - y);
-
-          if (META_IS_BACKGROUND_GROUP (child))
-            meta_background_group_set_clip_region (META_BACKGROUND_GROUP (child), clip_region);
-          else
-            meta_background_actor_set_clip_region (META_BACKGROUND_ACTOR (child), clip_region);
-
-          cairo_region_translate (clip_region, x, y);
-        }
-    }
+  meta_cullable_cull_out (META_CULLABLE (window_group), unobscured_region, clip_region);
 
   cairo_region_destroy (unobscured_region);
   cairo_region_destroy (clip_region);
 
   CLUTTER_ACTOR_CLASS (meta_window_group_parent_class)->paint (actor);
 
-  /* Now that we are done painting, unset the visible regions (they will
-   * mess up painting clones of our actors)
-   */
-  clutter_actor_iter_init (&iter, actor);
-  while (clutter_actor_iter_next (&iter, &child))
-    {
-      if (META_IS_WINDOW_ACTOR (child))
-        {
-          MetaWindowActor *window_actor = META_WINDOW_ACTOR (child);
-          meta_window_actor_reset_clip_regions (window_actor);
-        }
-      else if (META_IS_BACKGROUND_ACTOR (child))
-        {
-          MetaBackgroundActor *background_actor = META_BACKGROUND_ACTOR (child);
-          meta_background_actor_set_clip_region (background_actor, NULL);
-        }
-    }
+  meta_cullable_reset_culling (META_CULLABLE (window_group));
 }
 
+/* Adapted from clutter_actor_update_default_paint_volume() */
 static gboolean
-meta_window_group_get_paint_volume (ClutterActor       *actor,
+meta_window_group_get_paint_volume (ClutterActor       *self,
                                     ClutterPaintVolume *volume)
 {
-  return clutter_paint_volume_set_from_allocation (volume, actor);
+  ClutterActorIter iter;
+  ClutterActor *child;
+
+  clutter_actor_iter_init (&iter, self);
+  while (clutter_actor_iter_next (&iter, &child))
+    {
+      const ClutterPaintVolume *child_volume;
+
+      if (!CLUTTER_ACTOR_IS_MAPPED (child))
+        continue;
+
+      child_volume = clutter_actor_get_transformed_paint_volume (child, self);
+      if (child_volume == NULL)
+        return FALSE;
+
+      clutter_paint_volume_union (volume, child_volume);
+    }
+
+  return TRUE;
 }
 
 static void

src/compositor/meta-window-group.h

@@ -11,29 +11,9 @@
  * MetaWindowGroup:
  *
  * This class is a subclass of ClutterActor with special handling for
- * MetaWindowActor/MetaBackgroundActor/MetaBackgroundGroup when painting
- * children.
- *
- * When we are painting a stack of 5-10 maximized windows, the
- * standard bottom-to-top method of drawing every actor results in a
- * tremendous amount of overdraw and can easily max out the available
- * memory bandwidth on a low-end graphics chipset. It's even worse if
- * window textures are being accessed over the AGP bus.
- *
- * The basic technique applied here is to do a pre-pass before painting
- * where we walk window from top to bottom and compute the visible area
- * at each step by subtracting out the windows above it. The visible
- * area is passed to MetaWindowActor which uses it to clip the portion of
- * the window which drawn and avoid redrawing the shadow if it is completely
- * obscured.
- *
- * A caveat is that this is ineffective if applications are using ARGB
- * visuals, since we have no way of knowing whether a window obscures
- * the windows behind it or not. Alternate approaches using the depth
- * or stencil buffer rather than client side regions might be able to
- * handle alpha windows, but the combination of glAlphaFunc and stenciling
- * tends not to be efficient except on newer cards. (And on newer cards
- * we have lots of memory and bandwidth.)
+ * #MetaCullable when painting children. It uses code similar to
+ * meta_cullable_cull_out_children(), but also has additional special
+ * cases for the undirected window, and similar.
  */
 
 #define META_TYPE_WINDOW_GROUP            (meta_window_group_get_type ())

src/core/constraints.c

@@ -118,8 +118,6 @@ typedef struct
 {
   MetaRectangle        orig;
   MetaRectangle        current;
-  MetaFrameBorders    *borders;
-  gboolean             must_free_borders;
   ActionType           action_type;
   gboolean             is_user_action;
 
@@ -195,7 +193,6 @@ static gboolean constrain_partially_onscreen (MetaWindow         *window,
 
 static void setup_constraint_info        (ConstraintInfo      *info,
                                           MetaWindow          *window,
-                                          MetaFrameBorders    *orig_borders,
                                           MetaMoveResizeFlags  flags,
                                           int                  resize_gravity,
                                           const MetaRectangle *orig,
@@ -204,13 +201,12 @@ static void place_window_if_needed       (MetaWindow     *window,
                                           ConstraintInfo *info);
 static void update_onscreen_requirements (MetaWindow     *window,
                                           ConstraintInfo *info);
-static void extend_by_frame              (MetaRectangle           *rect,
-                                          const MetaFrameBorders  *borders);
-static void unextend_by_frame            (MetaRectangle           *rect,
-                                          const MetaFrameBorders  *borders);
-static inline void get_size_limits       (const MetaWindow        *window,
-                                          const MetaFrameBorders  *borders,
-                                          gboolean include_frame,
+static void extend_by_frame              (MetaWindow     *window,
+                                          MetaRectangle  *rect);
+static void unextend_by_frame            (MetaWindow     *window,
+                                          MetaRectangle  *rect);
+static inline void get_size_limits       (MetaWindow    *window,
+                                          gboolean       include_frame,
                                           MetaRectangle *min_size,
                                           MetaRectangle *max_size);
 
@@ -280,7 +276,6 @@ do_all_constraints (MetaWindow         *window,
 
 void
 meta_window_constrain (MetaWindow          *window,
-                       MetaFrameBorders    *orig_borders,
                        MetaMoveResizeFlags  flags,
                        int                  resize_gravity,
                        const MetaRectangle *orig,
@@ -303,7 +298,6 @@ meta_window_constrain (MetaWindow          *window,
 
   setup_constraint_info (&info,
                          window, 
-                         orig_borders,
                          flags,
                          resize_gravity,
                          orig,
@@ -333,19 +327,11 @@ meta_window_constrain (MetaWindow          *window,
    * if this was a user move or user move-and-resize operation.
    */
   update_onscreen_requirements (window, &info);
-
-  /* Ew, what an ugly way to do things.  Destructors (in a real OOP language,
-   * not gobject-style--gobject would be more pain than it's worth) or
-   * smart pointers would be so much nicer here.  *shrug*
-   */
-  if (info.must_free_borders)
-    g_free (info.borders);
 }
 
 static void
 setup_constraint_info (ConstraintInfo      *info,
                        MetaWindow          *window,
-                       MetaFrameBorders    *orig_borders,
                        MetaMoveResizeFlags  flags,
                        int                  resize_gravity,
                        const MetaRectangle *orig,
@@ -357,18 +343,6 @@ setup_constraint_info (ConstraintInfo      *info,
   info->orig    = *orig;
   info->current = *new;
 
-  /* Create a fake frame geometry if none really exists */
-  if (orig_borders && !window->fullscreen)
-    {
-      info->borders = orig_borders;
-      info->must_free_borders = FALSE;
-    }
-  else
-    {
-      info->borders = g_new0 (MetaFrameBorders, 1);
-      info->must_free_borders = TRUE;
-    }
-
   if (flags & META_IS_MOVE_ACTION && flags & META_IS_RESIZE_ACTION)
     info->action_type = ACTION_MOVE_AND_RESIZE;
   else if (flags & META_IS_RESIZE_ACTION)
@@ -447,12 +421,14 @@ setup_constraint_info (ConstraintInfo      *info,
 
   /* Workaround braindead legacy apps that don't know how to
    * fullscreen themselves properly - don't get fooled by
-   * windows which hide their titlebar when maximized; that's
-   * not the same as fullscreen, even if there are no struts
-   * making the workarea smaller than the monitor.
+   * windows which hide their titlebar when maximized or which are
+   * client decorated; that's not the same as fullscreen, even
+   * if there are no struts making the workarea smaller than
+   * the monitor.
    */
   if (meta_prefs_get_force_fullscreen() &&
       !window->hide_titlebar_when_maximized &&
+      window->decorated &&
       meta_rectangle_equal (new, &monitor_info->rect) &&
       window->has_fullscreen_func &&
       !window->fullscreen)
@@ -517,11 +493,12 @@ place_window_if_needed(MetaWindow     *window,
       !window->minimized &&
       !window->fullscreen)
     {
-      MetaRectangle placed_rect = info->orig;
+      MetaRectangle placed_rect;
       MetaWorkspace *cur_workspace;
       const MetaMonitorInfo *monitor_info;
 
-      meta_window_place (window, info->borders, info->orig.x, info->orig.y,
+      meta_window_get_frame_rect (window, &placed_rect);
+      meta_window_place (window, info->orig.x, info->orig.y,
                          &placed_rect.x, &placed_rect.y);
       did_placement = TRUE;
 
@@ -539,6 +516,7 @@ place_window_if_needed(MetaWindow     *window,
         meta_workspace_get_onmonitor_region (cur_workspace, 
                                              monitor_info->number);
 
+      meta_window_frame_rect_to_client_rect (window, &placed_rect, &placed_rect);
 
       info->current.x = placed_rect.x;
       info->current.y = placed_rect.y;
@@ -584,10 +562,6 @@ place_window_if_needed(MetaWindow     *window,
                 (window->maximize_vertically_after_placement ?
                  META_MAXIMIZE_VERTICAL : 0), &info->current);
 
-          /* maximization may have changed frame geometry */
-          if (!window->fullscreen)
-            meta_frame_calc_borders (window->frame, info->borders);
-
           if (window->fullscreen_after_placement)
             {
               window->saved_rect = info->current;
@@ -647,7 +621,7 @@ update_onscreen_requirements (MetaWindow     *window,
   /* The require onscreen/on-single-monitor and titlebar_visible
    * stuff is relative to the outer window, not the inner
    */
-  extend_by_frame (&info->current, info->borders);
+  extend_by_frame (window, &info->current);
 
   /* Update whether we want future constraint runs to require the
    * window to be on fully onscreen.
@@ -680,10 +654,13 @@ update_onscreen_requirements (MetaWindow     *window,
    */
   if (window->frame && window->decorated)
     {
+      MetaFrameBorders borders;
       MetaRectangle titlebar_rect;
 
+      meta_frame_calc_borders (window->frame, &borders);
+
       titlebar_rect = info->current;
-      titlebar_rect.height = info->borders->visible.top;
+      titlebar_rect.height = borders.visible.top;
       old = window->require_titlebar_visible;
       window->require_titlebar_visible =
         meta_rectangle_overlaps_with_region (info->usable_screen_region,
@@ -696,39 +673,33 @@ update_onscreen_requirements (MetaWindow     *window,
     }
 
   /* Don't forget to restore the position of the window */
-  unextend_by_frame (&info->current, info->borders);
+  unextend_by_frame (window, &info->current);
 }
 
 static void
-extend_by_frame (MetaRectangle           *rect,
-                 const MetaFrameBorders *borders)
+extend_by_frame (MetaWindow    *window,
+                 MetaRectangle *rect)
 {
-  rect->x -= borders->visible.left;
-  rect->y -= borders->visible.top;
-  rect->width  += borders->visible.left + borders->visible.right;
-  rect->height += borders->visible.top + borders->visible.bottom;
+  meta_window_client_rect_to_frame_rect (window, rect, rect);
 }
 
 static void
-unextend_by_frame (MetaRectangle           *rect,
-                   const MetaFrameBorders *borders)
+unextend_by_frame (MetaWindow    *window,
+                   MetaRectangle *rect)
 {
-  rect->x += borders->visible.left;
-  rect->y += borders->visible.top;
-  rect->width  -= borders->visible.left + borders->visible.right;
-  rect->height -= borders->visible.top + borders->visible.bottom;
+  meta_window_frame_rect_to_client_rect (window, rect, rect);
 }
 
 static inline void
-get_size_limits (const MetaWindow        *window,
-                 const MetaFrameBorders *borders,
-                 gboolean                 include_frame,
+get_size_limits (MetaWindow    *window,
+                 gboolean       include_frame,
                  MetaRectangle *min_size,
                  MetaRectangle *max_size)
 {
   /* We pack the results into MetaRectangle structs just for convienience; we
    * don't actually use the position of those rects.
    */
+  min_size->x = min_size->y = max_size->x = max_size->y = 0;
   min_size->width  = window->size_hints.min_width;
   min_size->height = window->size_hints.min_height;
   max_size->width  = window->size_hints.max_width;
@@ -736,22 +707,8 @@ get_size_limits (const MetaWindow        *window,
 
   if (include_frame)
     {
-      int fw = borders->visible.left + borders->visible.right;
-      int fh = borders->visible.top + borders->visible.bottom;
-
-      min_size->width  += fw;
-      min_size->height += fh;
-      /* Do check to avoid overflow (e.g. max_size->width & max_size->height
-       * may be set to G_MAXINT by meta_set_normal_hints()).
-       */
-      if (max_size->width < (G_MAXINT - fw))
-        max_size->width += fw;
-      else
-        max_size->width = G_MAXINT;
-      if (max_size->height < (G_MAXINT - fh))
-        max_size->height += fh;
-      else
-        max_size->height = G_MAXINT;
+      meta_window_client_rect_to_frame_rect (window, min_size, min_size);
+      meta_window_client_rect_to_frame_rect (window, max_size, max_size);
     }
 }
 
@@ -763,18 +720,28 @@ constrain_modal_dialog (MetaWindow         *window,
 {
   int x, y;
   MetaWindow *parent = meta_window_get_transient_for (window);
+  MetaRectangle child_rect, parent_rect;
   gboolean constraint_already_satisfied;
 
   if (!meta_window_is_attached_dialog (window))
     return TRUE;
 
-  x = parent->rect.x + (parent->rect.width / 2  - info->current.width / 2);
-  y = parent->rect.y + (parent->rect.height / 2 - info->current.height / 2);
-  if (parent->frame)
-    {
-      x += parent->frame->rect.x;
-      y += parent->frame->rect.y;
-    }
+  /* We want to center the dialog on the parent, including the decorations
+     for both of them. info->current is in client X window coordinates, so we need
+     to convert them to frame coordinates, apply the centering and then
+     convert back to client.
+  */
+
+  child_rect = info->current;
+  extend_by_frame (window, &child_rect);
+
+  meta_window_get_frame_rect (parent, &parent_rect);
+
+  child_rect.x = parent_rect.x + (parent_rect.width / 2  - child_rect.width / 2);
+  child_rect.y = parent_rect.y + (parent_rect.height / 2 - child_rect.height / 2);
+  unextend_by_frame (window, &child_rect);
+  x = child_rect.x;
+  y = child_rect.y;
 
   constraint_already_satisfied = (x == info->current.x) && (y == info->current.y);
 
@@ -839,19 +806,19 @@ constrain_maximization (MetaWindow         *window,
       active_workspace_struts = window->screen->active_workspace->all_struts;
 
       target_size = info->current;
-      extend_by_frame (&target_size, info->borders);
+      extend_by_frame (window, &target_size);
       meta_rectangle_expand_to_avoiding_struts (&target_size,
                                                 &info->entire_monitor,
                                                 direction,
                                                 active_workspace_struts);
    }
   /* Now make target_size = maximized size of client window */
-  unextend_by_frame (&target_size, info->borders);
+  unextend_by_frame (window, &target_size);
 
   /* Check min size constraints; max size constraints are ignored for maximized
    * windows, as per bug 327543.
    */
-  get_size_limits (window, info->borders, FALSE, &min_size, &max_size);
+  get_size_limits (window, FALSE, &min_size, &max_size);
   hminbad = target_size.width < min_size.width && window->maximized_horizontally;
   vminbad = target_size.height < min_size.height && window->maximized_vertically;
   if (hminbad || vminbad)
@@ -905,12 +872,12 @@ constrain_tiling (MetaWindow         *window,
    * use an external function for the actual calculation
    */
   meta_window_get_current_tile_area (window, &target_size);
-  unextend_by_frame (&target_size, info->borders);
+  unextend_by_frame (window, &target_size);
 
   /* Check min size constraints; max size constraints are ignored as for
    * maximized windows.
    */
-  get_size_limits (window, info->borders, FALSE, &min_size, &max_size);
+  get_size_limits (window, FALSE, &min_size, &max_size);
   hminbad = target_size.width < min_size.width;
   vminbad = target_size.height < min_size.height;
   if (hminbad || vminbad)
@@ -953,7 +920,7 @@ constrain_fullscreen (MetaWindow         *window,
 
   monitor = info->entire_monitor;
 
-  get_size_limits (window, info->borders, FALSE, &min_size, &max_size);
+  get_size_limits (window, FALSE, &min_size, &max_size);
   too_big =   !meta_rectangle_could_fit_rect (&monitor, &min_size);
   too_small = !meta_rectangle_could_fit_rect (&max_size, &monitor);
   if (too_big || too_small)
@@ -1062,7 +1029,7 @@ constrain_size_limits (MetaWindow         *window,
     return TRUE;
 
   /* Determine whether constraint is already satisfied; exit if it is */
-  get_size_limits (window, info->borders, FALSE, &min_size, &max_size);
+  get_size_limits (window, FALSE, &min_size, &max_size);
   /* We ignore max-size limits for maximized windows; see #327543 */
   if (window->maximized_horizontally)
     max_size.width = MAX (max_size.width, info->current.width);
@@ -1254,8 +1221,8 @@ do_screen_and_monitor_relative_constraints (
 
   /* Determine whether constraint applies; exit if it doesn't */
   how_far_it_can_be_smushed = info->current;
-  get_size_limits (window, info->borders, TRUE, &min_size, &max_size);
-  extend_by_frame (&info->current, info->borders);
+  get_size_limits (window, TRUE, &min_size, &max_size);
+  extend_by_frame (window, &info->current);
 
   if (info->action_type != ACTION_MOVE)
     {
@@ -1275,7 +1242,7 @@ do_screen_and_monitor_relative_constraints (
                                         &info->current);
   if (exit_early || constraint_satisfied || check_only)
     {
-      unextend_by_frame (&info->current, info->borders);
+      unextend_by_frame (window, &info->current);
       return constraint_satisfied;
     }
 
@@ -1299,7 +1266,7 @@ do_screen_and_monitor_relative_constraints (
                                       info->fixed_directions,
                                       &info->current);
 
-  unextend_by_frame (&info->current, info->borders);
+  unextend_by_frame (window, &info->current);
   return TRUE;
 }
 
@@ -1412,8 +1379,11 @@ constrain_titlebar_visible (MetaWindow         *window,
    */
   if (window->frame)
     {
-      bottom_amount = info->current.height + info->borders->visible.bottom;
-      vert_amount_onscreen = info->borders->visible.top;
+      MetaFrameBorders borders;
+      meta_frame_calc_borders (window->frame, &borders);
+
+      bottom_amount = info->current.height + borders.visible.bottom;
+      vert_amount_onscreen = borders.visible.top;
     }
   else
     bottom_amount = vert_amount_offscreen;
@@ -1487,8 +1457,11 @@ constrain_partially_onscreen (MetaWindow         *window,
    */
   if (window->frame)
     {
-      bottom_amount = info->current.height + info->borders->visible.bottom;
-      vert_amount_onscreen = info->borders->visible.top;
+      MetaFrameBorders borders;
+      meta_frame_calc_borders (window->frame, &borders);
+
+      bottom_amount = info->current.height + borders.visible.bottom;
+      vert_amount_onscreen = borders.visible.top;
     }
   else
     bottom_amount = vert_amount_offscreen;

src/core/constraints.h

@@ -39,7 +39,6 @@ typedef enum
 } MetaMoveResizeFlags;
 
 void meta_window_constrain (MetaWindow          *window,
-                            MetaFrameBorders    *orig_borders,
                             MetaMoveResizeFlags  flags,
                             int                  resize_gravity,
                             const MetaRectangle *orig,

src/core/core.c

@@ -171,6 +171,7 @@ meta_core_queue_frame_resize (Display *xdisplay,
   MetaWindow *window = get_window (xdisplay, frame_xwindow);
 
   meta_window_queue (window, META_QUEUE_MOVE_RESIZE);
+  meta_window_frame_size_changed (window);
 }
 
 void
@@ -279,8 +280,7 @@ meta_core_lower_beneath_grab_window (Display *xdisplay,
     return;
 
   changes.stack_mode = Below;
-  changes.sibling = grab_window->frame ? grab_window->frame->xwindow
-                                       : grab_window->xwindow;
+  changes.sibling = meta_window_get_toplevel_xwindow (grab_window);
 
   meta_stack_tracker_record_lower_below (screen->stack_tracker,
                                          xwindow,
@@ -469,26 +469,6 @@ meta_core_change_workspace (Display *xdisplay,
                                                                     new_workspace));
 }
 
-int
-meta_core_get_num_workspaces (Screen  *xscreen)
-{
-  MetaScreen *screen;
-
-  screen = meta_screen_for_x_screen (xscreen);
-
-  return meta_screen_get_n_workspaces (screen);
-}
-
-int
-meta_core_get_active_workspace (Screen *xscreen)
-{
-  MetaScreen *screen;
-
-  screen = meta_screen_for_x_screen (xscreen);
-
-  return meta_workspace_index (screen->active_workspace);
-}
-
 void
 meta_core_show_window_menu (Display *xdisplay,
                             Window   frame_xwindow,

src/core/core.h

@@ -153,8 +153,6 @@ void meta_core_change_workspace (Display *xdisplay,
                                  Window   frame_xwindow,
                                  int      new_workspace);
 
-int meta_core_get_num_workspaces (Screen  *xscreen);
-int meta_core_get_active_workspace (Screen *xscreen);
 int meta_core_get_frame_workspace (Display *xdisplay,
                                    Window frame_xwindow);
 const char* meta_core_get_workspace_name_with_index (Display *xdisplay,

src/core/display.c

@@ -51,7 +51,6 @@
 #include <meta/compositor.h>
 #include <meta/compositor-mutter.h>
 #include <X11/Xatom.h>
-#include <X11/cursorfont.h>
 #include "mutter-enum-types.h"
 #include "meta-idle-monitor-private.h"
 
@@ -118,12 +117,6 @@ typedef struct
   guint        ping_timeout_id;
 } MetaPingData;
 
-typedef struct 
-{
-  MetaDisplay *display;
-  Window xwindow;
-} MetaAutoRaiseData;
-
 typedef struct
 {
   MetaDisplay *display;
@@ -1586,23 +1579,10 @@ reset_ignored_crossing_serials (MetaDisplay *display)
 static gboolean 
 window_raise_with_delay_callback (void *data)
 {
-  MetaWindow *window;
-  MetaAutoRaiseData *auto_raise;
+  MetaWindow *window = data;
 
-  auto_raise = data;
-
-  meta_topic (META_DEBUG_FOCUS, 
-	      "In autoraise callback for window 0x%lx\n", 
-	      auto_raise->xwindow);
-
-  auto_raise->display->autoraise_timeout_id = 0;
-  auto_raise->display->autoraise_window = NULL;
-
-  window  = meta_display_lookup_x_window (auto_raise->display, 
-					  auto_raise->xwindow);
-  
-  if (window == NULL) 
-    return FALSE;
+  window->display->autoraise_timeout_id = 0;
+  window->display->autoraise_window = NULL;
 
   /* If we aren't already on top, check whether the pointer is inside
    * the window and raise the window if so.
@@ -1611,6 +1591,7 @@ window_raise_with_delay_callback (void *data)
     {
       int x, y, root_x, root_y;
       Window root, child;
+      MetaRectangle frame_rect;
       unsigned int mask;
       gboolean same_screen;
       gboolean point_in_window;
@@ -1622,9 +1603,8 @@ window_raise_with_delay_callback (void *data)
 				   &root_x, &root_y, &x, &y, &mask);
       meta_error_trap_pop (window->display);
 
-      point_in_window = 
-        (window->frame && POINT_IN_RECT (root_x, root_y, window->frame->rect)) ||
-        (window->frame == NULL && POINT_IN_RECT (root_x, root_y, window->rect));
+      meta_window_get_frame_rect (window, &frame_rect);
+      point_in_window = POINT_IN_RECT (root_x, root_y, frame_rect);
       if (same_screen && point_in_window)
 	meta_window_raise (window);
       else
@@ -1639,7 +1619,8 @@ window_raise_with_delay_callback (void *data)
 static void
 meta_display_mouse_mode_focus (MetaDisplay *display,
                                MetaWindow  *window,
-                               guint32      timestamp) {
+                               guint32      timestamp)
+{
   if (window->type != META_WINDOW_DESKTOP)
     {
       meta_topic (META_DEBUG_FOCUS,
@@ -1678,7 +1659,8 @@ meta_display_mouse_mode_focus (MetaDisplay *display,
 }
 
 static gboolean
-window_focus_on_pointer_rest_callback (gpointer data) {
+window_focus_on_pointer_rest_callback (gpointer data)
+{
   MetaFocusData *focus_data;
   MetaDisplay *display;
   MetaScreen *screen;
@@ -1723,9 +1705,9 @@ window_focus_on_pointer_rest_callback (gpointer data) {
     goto out;
 
   window =
-      meta_stack_get_default_focus_window_at_point (screen->stack,
-                                                    screen->active_workspace,
-                                                    None, root_x, root_y);
+    meta_stack_get_default_focus_window_at_point (screen->stack,
+                                                  screen->active_workspace,
+                                                  None, root_x, root_y);
 
   if (window == NULL)
     goto out;
@@ -1733,7 +1715,7 @@ window_focus_on_pointer_rest_callback (gpointer data) {
   timestamp = meta_display_get_current_time_roundtrip (display);
   meta_display_mouse_mode_focus (display, window, timestamp);
 
-out:
+ out:
   display->focus_timeout_id = 0;
   return FALSE;
 }
@@ -1742,17 +1724,11 @@ void
 meta_display_queue_autoraise_callback (MetaDisplay *display,
                                        MetaWindow  *window)
 {
-  MetaAutoRaiseData *auto_raise_data;
-
   meta_topic (META_DEBUG_FOCUS, 
               "Queuing an autoraise timeout for %s with delay %d\n", 
               window->desc, 
               meta_prefs_get_auto_raise_delay ());
   
-  auto_raise_data = g_new (MetaAutoRaiseData, 1);
-  auto_raise_data->display = window->display;
-  auto_raise_data->xwindow = window->xwindow;
-  
   if (display->autoraise_timeout_id != 0)
     g_source_remove (display->autoraise_timeout_id);
 
@@ -1760,8 +1736,7 @@ meta_display_queue_autoraise_callback (MetaDisplay *display,
     g_timeout_add_full (G_PRIORITY_DEFAULT,
                         meta_prefs_get_auto_raise_delay (),
                         window_raise_with_delay_callback,
-                        auto_raise_data,
-                        g_free);
+                        window, NULL);
   display->autoraise_window = window;
 }
 
@@ -2126,6 +2101,19 @@ handle_window_focus_event (MetaDisplay  *display,
     }
 }
 
+static gboolean
+window_has_xwindow (MetaWindow *window,
+                    Window      xwindow)
+{
+  if (window->xwindow == xwindow)
+    return TRUE;
+
+  if (window->frame && window->frame->xwindow == xwindow)
+    return TRUE;
+
+  return FALSE;
+}
+
 /**
  * event_callback:
  * @event: The event that just happened
@@ -2181,7 +2169,7 @@ event_callback (XEvent   *event,
 
   if (event->xany.serial > display->focus_serial &&
       display->focus_window &&
-      display->focus_window->xwindow != display->server_focus_window)
+      !window_has_xwindow (display->focus_window, display->server_focus_window))
     {
       meta_topic (META_DEBUG_FOCUS, "Earlier attempt to focus %s failed\n",
                   display->focus_window->desc);
@@ -2304,7 +2292,7 @@ event_callback (XEvent   *event,
       XIEnterEvent *enter_event = (XIEnterEvent *) input_event;
 
       if (window && !window->override_redirect &&
-          ((input_event->type == XI_KeyPress) || (input_event->type == XI_ButtonPress)))
+          ((input_event->evtype == XI_KeyPress) || (input_event->evtype == XI_ButtonPress)))
         {
           if (CurrentTime == display->current_time)
             {
@@ -2349,6 +2337,7 @@ event_callback (XEvent   *event,
 
           if ((window &&
                meta_grab_op_is_mouse (display->grab_op) &&
+               (device_event->mods.effective & display->window_grab_modifiers) &&
                display->grab_button != device_event->detail &&
                display->grab_window == window) ||
               grab_op_is_keyboard (display->grab_op))
@@ -2435,15 +2424,15 @@ event_callback (XEvent   *event,
                     {
                       gboolean north, south;
                       gboolean west, east;
-                      int root_x, root_y;
+                      MetaRectangle frame_rect;
                       MetaGrabOp op;
 
-                      meta_window_get_position (window, &root_x, &root_y);
+                      meta_window_get_frame_rect (window, &frame_rect);
 
-                      west = device_event->root_x <  (root_x + 1 * window->rect.width  / 3);
-                      east = device_event->root_x >  (root_x + 2 * window->rect.width  / 3);
-                      north = device_event->root_y < (root_y + 1 * window->rect.height / 3);
-                      south = device_event->root_y > (root_y + 2 * window->rect.height / 3);
+                      west = device_event->root_x <  (frame_rect.x + 1 * frame_rect.width  / 3);
+                      east = device_event->root_x >  (frame_rect.x + 2 * frame_rect.width  / 3);
+                      north = device_event->root_y < (frame_rect.y + 1 * frame_rect.height / 3);
+                      south = device_event->root_y > (frame_rect.y + 2 * frame_rect.height / 3);
 
                       if (north && west)
                         op = META_GRAB_OP_RESIZING_NW;
@@ -3858,85 +3847,6 @@ meta_display_xwindow_is_a_no_focus_window (MetaDisplay *display,
   return is_a_no_focus_window;
 }
 
-Cursor
-meta_display_create_x_cursor (MetaDisplay *display,
-                              MetaCursor cursor)
-{
-  Cursor xcursor;
-  guint glyph = XC_num_glyphs;
-  const char *name = NULL;
-
-  switch (cursor)
-    {
-    case META_CURSOR_DEFAULT:
-      glyph = XC_left_ptr;
-      break;
-    case META_CURSOR_NORTH_RESIZE:
-      glyph = XC_top_side;
-      break;
-    case META_CURSOR_SOUTH_RESIZE:
-      glyph = XC_bottom_side;
-      break;
-    case META_CURSOR_WEST_RESIZE:
-      glyph = XC_left_side;
-      break;
-    case META_CURSOR_EAST_RESIZE:
-      glyph = XC_right_side;
-      break;
-    case META_CURSOR_SE_RESIZE:
-      glyph = XC_bottom_right_corner;
-      break;
-    case META_CURSOR_SW_RESIZE:
-      glyph = XC_bottom_left_corner;
-      break;
-    case META_CURSOR_NE_RESIZE:
-      glyph = XC_top_right_corner;
-      break;
-    case META_CURSOR_NW_RESIZE:
-      glyph = XC_top_left_corner;
-      break;
-    case META_CURSOR_MOVE_OR_RESIZE_WINDOW:
-      glyph = XC_fleur;
-      break;
-    case META_CURSOR_BUSY:
-      glyph = XC_watch;
-      break;
-    case META_CURSOR_DND_IN_DRAG:
-      name = "dnd-none";
-      break;
-    case META_CURSOR_DND_MOVE:
-      name = "dnd-move";
-      break;
-    case META_CURSOR_DND_COPY:
-      name = "dnd-copy";
-      break;
-    case META_CURSOR_DND_UNSUPPORTED_TARGET:
-      name = "dnd-none";
-      break;
-    case META_CURSOR_POINTING_HAND:
-      glyph = XC_hand2;
-      break;
-    case META_CURSOR_CROSSHAIR:
-      glyph = XC_crosshair;
-      break;
-    case META_CURSOR_IBEAM:
-      glyph = XC_xterm;
-      break;
-
-    default:
-      g_assert_not_reached ();
-      glyph = 0; /* silence compiler */
-      break;
-    }
-
-  if (name != NULL)
-    xcursor = XcursorLibraryLoadCursor (display->xdisplay, name);
-  else
-    xcursor = XCreateFontCursor (display->xdisplay, glyph);
-
-  return xcursor;
-}
-
 static Cursor
 xcursor_for_op (MetaDisplay *display,
                 MetaGrabOp   op)
@@ -4098,7 +4008,7 @@ meta_display_begin_grab_op (MetaDisplay *display,
    *   key grab on the RootWindow.
    */
   if (grab_window)
-    grab_xwindow = grab_window->frame ? grab_window->frame->xwindow : grab_window->xwindow;
+    grab_xwindow = meta_window_get_toplevel_xwindow (grab_window);
   else
     grab_xwindow = screen->xroot;
 
@@ -4626,6 +4536,7 @@ meta_display_queue_retheme_all_windows (MetaDisplay *display)
       MetaWindow *window = tmp->data;
       
       meta_window_queue (window, META_QUEUE_MOVE_RESIZE);
+      meta_window_frame_size_changed (window);
       if (window->frame)
         {
           meta_frame_queue_draw (window->frame);
@@ -5807,25 +5718,6 @@ meta_display_request_take_focus (MetaDisplay *display,
   meta_topic (META_DEBUG_FOCUS, "WM_TAKE_FOCUS(%s, %u)\n",
               window->desc, timestamp);
 
-  if (window != display->focus_window)
-    {
-      /* The "Globally Active Input" window case, where the window
-       * doesn't want us to call XSetInputFocus on it, but does
-       * want us to send a WM_TAKE_FOCUS.
-       *
-       * We can't just set display->focus_window to @window, since we
-       * we don't know when (or even if) the window will actually take
-       * focus, so we could end up being wrong for arbitrarily long.
-       * But we also can't leave it set to the current window, or else
-       * bug #597352 would come back. So we focus the no_focus_window
-       * now (and set display->focus_window to that), send the
-       * WM_TAKE_FOCUS, and then just forget about @window
-       * until/unless we get a FocusIn.
-       */
-      meta_display_focus_the_no_focus_window (display,
-                                              window->screen,
-                                              timestamp);
-    }
   meta_window_send_icccm_message (window,
                                   display->atom_WM_TAKE_FOCUS,
                                   timestamp);

src/core/edge-resistance.c

@@ -985,7 +985,7 @@ compute_resistance_and_snapping_edges (MetaDisplay *display)
         {
           MetaRectangle *new_rect;
           new_rect = g_new (MetaRectangle, 1);
-          meta_window_get_outer_rect (cur_window, new_rect);
+          meta_window_get_frame_rect (cur_window, new_rect);
           obscuring_windows = g_slist_prepend (obscuring_windows, new_rect);
           window_stacking = 
             g_slist_prepend (window_stacking, GINT_TO_POINTER (stack_position));
@@ -1010,7 +1010,7 @@ compute_resistance_and_snapping_edges (MetaDisplay *display)
     {
       MetaRectangle  cur_rect;
       MetaWindow    *cur_window = cur_window_iter->data;
-      meta_window_get_outer_rect (cur_window, &cur_rect);
+      meta_window_get_frame_rect (cur_window, &cur_rect);
 
       /* Check if we want to use this window's edges for edge
        * resistance (note that dock edges are considered screen edges
@@ -1151,7 +1151,7 @@ meta_window_edge_resistance_for_move (MetaWindow  *window,
   MetaRectangle old_outer, proposed_outer, new_outer;
   gboolean is_resize;
 
-  meta_window_get_outer_rect (window, &old_outer);
+  meta_window_get_frame_rect (window, &old_outer);
 
   proposed_outer = old_outer;
   proposed_outer.x += (*new_x - old_x);
@@ -1237,7 +1237,7 @@ meta_window_edge_resistance_for_resize (MetaWindow  *window,
   int proposed_outer_width, proposed_outer_height;
   gboolean is_resize;
 
-  meta_window_get_outer_rect (window, &old_outer);
+  meta_window_get_frame_rect (window, &old_outer);
   proposed_outer_width  = old_outer.width  + (*new_width  - old_width);
   proposed_outer_height = old_outer.height + (*new_height - old_height);
   meta_rectangle_resize_with_gravity (&old_outer, 

src/core/frame.c

@@ -68,6 +68,7 @@ meta_window_ensure_frame (MetaWindow *window)
 
   frame->mapped = FALSE;
   frame->is_flashing = FALSE;
+  frame->borders_cached = FALSE;
   
   meta_verbose ("Framing window %s: visual %s default, depth %d default depth %d\n",
                 window->desc,
@@ -327,9 +328,23 @@ meta_frame_calc_borders (MetaFrame        *frame,
   if (frame == NULL)
     meta_frame_borders_clear (borders);
   else
-    meta_ui_get_frame_borders (frame->window->screen->ui,
-                               frame->xwindow,
-                               borders);
+    {
+      if (!frame->borders_cached)
+        {
+          meta_ui_get_frame_borders (frame->window->screen->ui,
+                                     frame->xwindow,
+                                     &frame->cached_borders);
+          frame->borders_cached = TRUE;
+        }
+
+      *borders = frame->cached_borders;
+    }
+}
+
+void
+meta_frame_clear_cached_borders (MetaFrame *frame)
+{
+  frame->borders_cached = FALSE;
 }
 
 gboolean

src/core/frame.h

@@ -41,6 +41,8 @@ struct _MetaFrame
    */
   MetaRectangle rect;
 
+  MetaFrameBorders cached_borders; /* valid if borders_cached is set */
+
   /* position of client, size of frame */
   int child_x;
   int child_y;
@@ -50,6 +52,7 @@ struct _MetaFrame
   guint mapped : 1;
   guint need_reapply_frame_shape : 1;
   guint is_flashing : 1; /* used by the visual bell flash */
+  guint borders_cached : 1;
 };
 
 void     meta_window_ensure_frame           (MetaWindow *window);
@@ -68,6 +71,8 @@ gboolean meta_frame_sync_to_window (MetaFrame         *frame,
                                     gboolean           need_move,
                                     gboolean           need_resize);
 
+void meta_frame_clear_cached_borders (MetaFrame *frame);
+
 cairo_region_t *meta_frame_get_frame_bounds (MetaFrame *frame);
 
 void meta_frame_get_mask (MetaFrame *frame,

src/core/keybindings.c

@@ -1277,7 +1277,7 @@ meta_window_grab_keys (MetaWindow  *window)
     }
 
   meta_window_change_keygrabs (window,
-                               window->frame ? window->frame->xwindow : window->xwindow,
+                               meta_window_get_toplevel_xwindow (window),
                                TRUE);
 
   window->keys_grabbed = TRUE;
@@ -1580,7 +1580,7 @@ meta_window_grab_all_keys (MetaWindow  *window,
               window->desc);
   meta_window_focus (window, timestamp);
 
-  grabwindow = window->frame ? window->frame->xwindow : window->xwindow;
+  grabwindow = meta_window_get_toplevel_xwindow (window);
 
   meta_topic (META_DEBUG_KEYBINDINGS,
               "Grabbing all keys on window %s\n", window->desc);
@@ -1835,7 +1835,6 @@ invoke_handler_by_name (MetaDisplay    *display,
     invoke_handler (display, screen, handler, window, event, NULL);
 }
 
-/* now called from only one place, may be worth merging */
 static gboolean
 process_event (MetaKeyBinding       *bindings,
                int                   n_bindings,
@@ -1843,7 +1842,6 @@ process_event (MetaKeyBinding       *bindings,
                MetaScreen           *screen,
                MetaWindow           *window,
                XIDeviceEvent        *event,
-               KeySym                keysym,
                gboolean              on_window)
 {
   int i;
@@ -1861,7 +1859,6 @@ process_event (MetaKeyBinding       *bindings,
       MetaKeyHandler *handler = bindings[i].handler;
 
       if ((!on_window && handler->flags & META_KEY_BINDING_PER_WINDOW) ||
-          event->evtype != XI_KeyPress ||
           bindings[i].keycode != event->detail ||
           ((event->mods.effective & 0xff & ~(display->ignored_modifier_mask)) !=
            bindings[i].mask) ||
@@ -1928,7 +1925,7 @@ process_overlay_key (MetaDisplay *display,
            */
           if (process_event (display->key_bindings,
                              display->n_key_bindings,
-                             display, screen, NULL, event, keysym,
+                             display, screen, NULL, event,
                              FALSE))
             {
               /* As normally, after we've handled a global key
@@ -2192,7 +2189,7 @@ meta_display_process_key_event (MetaDisplay   *display,
   /* Do the normal keybindings */
   return process_event (display->key_bindings,
                         display->n_key_bindings,
-                        display, screen, window, event, keysym,
+                        display, screen, window, event,
                         !all_keys_grabbed && window);
 }
 
@@ -3140,6 +3137,20 @@ handle_maximize_horizontally (MetaDisplay    *display,
     }
 }
 
+static void
+handle_always_on_top          (MetaDisplay    *display,
+                              MetaScreen     *screen,
+                              MetaWindow     *window,
+                              XIDeviceEvent  *event,
+                              MetaKeyBinding *binding,
+                              gpointer        dummy)
+{
+  if (window->wm_state_above == FALSE)
+    meta_window_make_above (window);
+  else
+    meta_window_unmake_above (window);
+}
+
 /* Move a window to a corner; to_bottom/to_right are FALSE for the
  * top or left edge, or TRUE for the bottom/right edge.  xchange/ychange
  * are FALSE if that dimension is not to be changed, TRUE otherwise.
@@ -3157,17 +3168,17 @@ handle_move_to_corner_backend (MetaDisplay    *display,
                                gpointer        dummy)
 {
   MetaRectangle work_area;
-  MetaRectangle outer;
+  MetaRectangle frame_rect;
   int orig_x, orig_y;
   int new_x, new_y;
 
   meta_window_get_work_area_all_monitors (window, &work_area);
-  meta_window_get_outer_rect (window, &outer);
+  meta_window_get_frame_rect (window, &frame_rect);
   meta_window_get_position (window, &orig_x, &orig_y);
 
   if (xchange) {
     new_x = work_area.x + (to_right ?
-                           work_area.width - outer.width :
+                           work_area.width - frame_rect.width :
                            0);
   } else {
     new_x = orig_x;
@@ -3175,7 +3186,7 @@ handle_move_to_corner_backend (MetaDisplay    *display,
 
   if (ychange) {
     new_y = work_area.y + (to_bottom ?
-                           work_area.height - outer.height :
+                           work_area.height - frame_rect.height :
                            0);
   } else {
     new_y = orig_y;
@@ -3284,12 +3295,12 @@ handle_move_to_center  (MetaDisplay    *display,
                         gpointer        dummy)
 {
   MetaRectangle work_area;
-  MetaRectangle outer;
+  MetaRectangle frame_rect;
   int orig_x, orig_y;
   int frame_width, frame_height;
 
   meta_window_get_work_area_all_monitors (window, &work_area);
-  meta_window_get_outer_rect (window, &outer);
+  meta_window_get_frame_rect (window, &frame_rect);
   meta_window_get_position (window, &orig_x, &orig_y);
 
   frame_width = (window->frame ? window->frame->child_x : 0);
@@ -3297,8 +3308,8 @@ handle_move_to_center  (MetaDisplay    *display,
 
   meta_window_move_resize (window,
                            TRUE,
-                           work_area.x + (work_area.width +frame_width -outer.width )/2,
-                           work_area.y + (work_area.height+frame_height-outer.height)/2,
+                           work_area.x + (work_area.width +frame_width -frame_rect.width )/2,
+                           work_area.y + (work_area.height+frame_height-frame_rect.height)/2,
                            window->rect.width,
                            window->rect.height);
 }
@@ -3991,8 +4002,8 @@ handle_raise_or_lower (MetaDisplay    *display,
 
       if (above->mapped)
         {
-          meta_window_get_outer_rect (window, &win_rect);
-          meta_window_get_outer_rect (above, &above_rect);
+          meta_window_get_frame_rect (window, &win_rect);
+          meta_window_get_frame_rect (above, &above_rect);
 
           /* Check if obscured */
           if (meta_rectangle_intersect (&win_rect, &above_rect, &tmp))
@@ -4132,28 +4143,6 @@ meta_keybindings_set_custom_handler (const gchar        *name,
   return TRUE;
 }
 
-/**
- * meta_keybindings_switch_window: (skip)
- * @display: a #MetaDisplay
- * @screen: a #MetaScreen
- * @event_window: a #MetaWindow
- * @event: a #XIDeviceEvent
- * @binding: a #MetaKeyBinding
- *
- */
-void
-meta_keybindings_switch_window (MetaDisplay    *display,
-                                MetaScreen     *screen,
-                                MetaWindow     *event_window,
-                                XIDeviceEvent  *event,
-                                MetaKeyBinding *binding)
-{
-  gint backwards = (binding->handler->flags & META_KEY_BINDING_IS_REVERSED) != 0;
-
-  do_choose_window (display, screen, event_window, event, binding,
-                    backwards, FALSE);
-}
-
 static void
 init_builtin_key_bindings (MetaDisplay *display)
 {
@@ -4675,6 +4664,13 @@ init_builtin_key_bindings (MetaDisplay *display)
                           META_KEYBINDING_ACTION_MAXIMIZE_HORIZONTALLY,
                           handle_maximize_horizontally, 0);
 
+  add_builtin_keybinding (display,
+                          "always-on-top",
+                          common_keybindings,
+                          META_KEY_BINDING_PER_WINDOW,
+                          META_KEYBINDING_ACTION_ALWAYS_ON_TOP,
+                          handle_always_on_top, 0);
+
   add_builtin_keybinding (display,
                           "move-to-corner-nw",
                           common_keybindings,

src/core/meta-cursor-tracker.c

@@ -37,7 +37,9 @@
 
 #include <gdk/gdk.h>
 
+#include <X11/cursorfont.h>
 #include <X11/extensions/Xfixes.h>
+#include <X11/Xcursor/Xcursor.h>
 
 #include "meta-cursor-tracker-private.h"
 #include "screen-private.h"
@@ -69,6 +71,106 @@ enum {
 
 static guint signals[LAST_SIGNAL];
 
+static void
+translate_meta_cursor (MetaCursor   cursor,
+                       guint       *glyph_out,
+                       const char **name_out)
+{
+  guint glyph = XC_num_glyphs;
+  const char *name = NULL;
+
+  switch (cursor)
+    {
+    case META_CURSOR_DEFAULT:
+      glyph = XC_left_ptr;
+      break;
+    case META_CURSOR_NORTH_RESIZE:
+      glyph = XC_top_side;
+      break;
+    case META_CURSOR_SOUTH_RESIZE:
+      glyph = XC_bottom_side;
+      break;
+    case META_CURSOR_WEST_RESIZE:
+      glyph = XC_left_side;
+      break;
+    case META_CURSOR_EAST_RESIZE:
+      glyph = XC_right_side;
+      break;
+    case META_CURSOR_SE_RESIZE:
+      glyph = XC_bottom_right_corner;
+      break;
+    case META_CURSOR_SW_RESIZE:
+      glyph = XC_bottom_left_corner;
+      break;
+    case META_CURSOR_NE_RESIZE:
+      glyph = XC_top_right_corner;
+      break;
+    case META_CURSOR_NW_RESIZE:
+      glyph = XC_top_left_corner;
+      break;
+    case META_CURSOR_MOVE_OR_RESIZE_WINDOW:
+      glyph = XC_fleur;
+      break;
+    case META_CURSOR_BUSY:
+      glyph = XC_watch;
+      break;
+    case META_CURSOR_DND_IN_DRAG:
+      name = "dnd-none";
+      break;
+    case META_CURSOR_DND_MOVE:
+      name = "dnd-move";
+      break;
+    case META_CURSOR_DND_COPY:
+      name = "dnd-copy";
+      break;
+    case META_CURSOR_DND_UNSUPPORTED_TARGET:
+      name = "dnd-none";
+      break;
+    case META_CURSOR_POINTING_HAND:
+      glyph = XC_hand2;
+      break;
+    case META_CURSOR_CROSSHAIR:
+      glyph = XC_crosshair;
+      break;
+    case META_CURSOR_IBEAM:
+      glyph = XC_xterm;
+      break;
+
+    default:
+      g_assert_not_reached ();
+      glyph = 0; /* silence compiler */
+      break;
+    }
+
+  *glyph_out = glyph;
+  *name_out = name;
+}
+
+static Cursor
+load_cursor_on_server (MetaDisplay *display,
+                       MetaCursor   cursor)
+{
+  Cursor xcursor;
+  guint glyph;
+  const char *name;
+
+  translate_meta_cursor (cursor, &glyph, &name);
+
+  if (name != NULL)
+    xcursor = XcursorLibraryLoadCursor (display->xdisplay, name);
+  else
+    xcursor = XCreateFontCursor (display->xdisplay, glyph);
+
+  return xcursor;
+}
+
+Cursor
+meta_display_create_x_cursor (MetaDisplay *display,
+                              MetaCursor cursor)
+{
+  return load_cursor_on_server (display, cursor);
+}
+
 static void
 meta_cursor_tracker_init (MetaCursorTracker *self)
 {

src/core/meta-idle-monitor.c

@@ -287,6 +287,7 @@ idle_monitor_watch_free (MetaIdleMonitorWatch *watch)
     return;
 
   monitor = watch->monitor;
+  g_object_ref (monitor);
 
   if (watch->idle_source_id)
     {
@@ -304,6 +305,7 @@ idle_monitor_watch_free (MetaIdleMonitorWatch *watch)
       g_hash_table_remove (monitor->alarms, (gpointer) watch->xalarm);
     }
 
+  g_object_unref (monitor);
   g_slice_free (MetaIdleMonitorWatch, watch);
 }
 
@@ -840,6 +842,8 @@ on_bus_acquired (GDBusConnection *connection,
   for (iter = devices; iter; iter = iter->next)
     on_device_added (device_manager, iter->data, manager);
 
+  g_slist_free (devices);
+
   g_signal_connect_object (device_manager, "device-added",
                            G_CALLBACK (on_device_added), manager, 0);
   g_signal_connect_object (device_manager, "device-removed",

src/core/monitor-config.c

@@ -99,8 +99,9 @@ static gboolean meta_monitor_config_assign_crtcs (MetaConfiguration  *config,
                                                   GPtrArray          *crtcs,
                                                   GPtrArray          *outputs);
 
-static void     power_client_changed_cb (UpClient *client,
-                                         gpointer  user_data);
+static void     power_client_changed_cb (UpClient   *client,
+                                         GParamSpec *pspec,
+                                         gpointer    user_data);
 
 static void
 free_output_key (MetaOutputKey *key)
@@ -232,7 +233,7 @@ meta_monitor_config_init (MetaMonitorConfig *self)
   self->up_client = up_client_new ();
   self->lid_is_closed = up_client_get_lid_is_closed (self->up_client);
 
-  g_signal_connect_object (self->up_client, "changed",
+  g_signal_connect_object (self->up_client, "notify::lid-is-closed",
                            G_CALLBACK (power_client_changed_cb), self, 0);
 }
 
@@ -816,6 +817,22 @@ meta_monitor_config_match_current (MetaMonitorConfig  *self,
   return ok;
 }
 
+gboolean
+meta_monitor_manager_has_hotplug_mode_update (MetaMonitorManager *manager)
+{
+  MetaOutput *outputs;
+  unsigned n_outputs;
+  unsigned int i;
+
+  outputs = meta_monitor_manager_get_outputs (manager, &n_outputs);
+
+  for (i = 0; i < n_outputs; i++)
+    if (outputs[i].hotplug_mode_update)
+      return TRUE;
+
+  return FALSE;
+}
+
 static MetaConfiguration *
 meta_monitor_config_get_stored (MetaMonitorConfig *self,
 				MetaOutput        *outputs,
@@ -824,6 +841,9 @@ meta_monitor_config_get_stored (MetaMonitorConfig *self,
   MetaConfiguration key;
   MetaConfiguration *stored;
 
+  if (n_outputs == 0)
+    return NULL;
+
   make_config_key (&key, outputs, n_outputs, -1);
   stored = g_hash_table_lookup (self->configs, &key);
 
@@ -1231,6 +1251,12 @@ meta_monitor_config_make_default (MetaMonitorConfig  *self,
   outputs = meta_monitor_manager_get_outputs (manager, &n_outputs);
   meta_monitor_manager_get_screen_limits (manager, &max_width, &max_height);
 
+  if (n_outputs == 0)
+    {
+      meta_verbose ("No output connected, not applying configuration\n");
+      return;
+    }
+
   default_config = make_default_config (self, outputs, n_outputs, max_width, max_height);
 
   if (default_config != NULL)
@@ -1335,8 +1361,9 @@ turn_off_laptop_display (MetaMonitorConfig  *self,
 }
 
 static void
-power_client_changed_cb (UpClient *client,
-                         gpointer  user_data)
+power_client_changed_cb (UpClient   *client,
+                         GParamSpec *pspec,
+                         gpointer    user_data)
 {
   MetaMonitorManager *manager = meta_monitor_manager_get ();
   MetaMonitorConfig *self = user_data;

src/core/monitor-private.h

@@ -116,6 +116,9 @@ struct _MetaOutput
   */
   gboolean is_primary;
   gboolean is_presentation;
+
+  /* get a new preferred mode on hotplug events, to handle dynamic guest resizing */
+  gboolean hotplug_mode_update;
 };
 
 struct _MetaCRTC
@@ -383,6 +386,7 @@ void               meta_output_info_free (MetaOutputInfo *info);
 
 void               meta_monitor_manager_free_output_array (MetaOutput *old_outputs,
                                                            int         n_old_outputs);
+gboolean           meta_monitor_manager_has_hotplug_mode_update (MetaMonitorManager *manager);
 
 /* Returns true if transform causes width and height to be inverted
    This is true for the odd transforms in the enum */

src/core/monitor-xrandr.c

@@ -311,6 +311,29 @@ read_output_edid (MetaMonitorManagerXrandr *manager_xrandr,
   return NULL;
 }
 
+static gboolean
+output_get_hotplug_mode_update (MetaMonitorManagerXrandr *manager_xrandr,
+                                XID                       output_id)
+{
+  MetaDisplay *display = meta_get_display ();
+  XRRPropertyInfo *info;
+  gboolean result = FALSE;
+
+  meta_error_trap_push (display);
+  info = XRRQueryOutputProperty (manager_xrandr->xdisplay, output_id,
+                                 display->atom_hotplug_mode_update);
+  meta_error_trap_pop (display);
+
+  if (info)
+    {
+      result = TRUE;
+      XFree (info);
+    }
+
+  return result;
+}
+
+
 static void
 meta_monitor_manager_xrandr_read_current (MetaMonitorManager *manager)
 {
@@ -430,8 +453,10 @@ meta_monitor_manager_xrandr_read_current (MetaMonitorManager *manager)
       XRRFreeCrtcInfo (crtc);
     }
 
+  meta_error_trap_push (meta_get_display ());
   primary_output = XRRGetOutputPrimary (manager_xrandr->xdisplay,
 					DefaultRootWindow (manager_xrandr->xdisplay));
+  meta_error_trap_pop (meta_get_display ());
 
   n_actual_outputs = 0;
   for (i = 0; i < (unsigned)resources->noutput; i++)
@@ -484,6 +509,8 @@ meta_monitor_manager_xrandr_read_current (MetaMonitorManager *manager)
 	  meta_output->width_mm = output->mm_width;
 	  meta_output->height_mm = output->mm_height;
 	  meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_UNKNOWN;
+          meta_output->hotplug_mode_update =
+              output_get_hotplug_mode_update (manager_xrandr, meta_output->output_id);
 
 	  meta_output->n_modes = output->nmode;
 	  meta_output->modes = g_new0 (MetaMonitorMode *, meta_output->n_modes);
@@ -668,10 +695,11 @@ meta_monitor_manager_xrandr_apply_configuration (MetaMonitorManager *manager,
 						 unsigned int         n_outputs)
 {
   MetaMonitorManagerXrandr *manager_xrandr = META_MONITOR_MANAGER_XRANDR (manager);
+  MetaDisplay *display = meta_get_display ();
   unsigned i;
   int width, height, width_mm, height_mm;
 
-  meta_display_grab (meta_get_display ());
+  meta_display_grab (display);
 
   /* First compute the new size of the screen (framebuffer) */
   width = 0; height = 0;
@@ -765,10 +793,10 @@ meta_monitor_manager_xrandr_apply_configuration (MetaMonitorManager *manager,
    */
   width_mm = (width / DPI_FALLBACK) * 25.4 + 0.5;
   height_mm = (height / DPI_FALLBACK) * 25.4 + 0.5;
-  meta_error_trap_push (meta_get_display ());
+  meta_error_trap_push (display);
   XRRSetScreenSize (manager_xrandr->xdisplay, DefaultRootWindow (manager_xrandr->xdisplay),
                     width, height, width_mm, height_mm);
-  meta_error_trap_pop (meta_get_display ());
+  meta_error_trap_pop (display);
 
   for (i = 0; i < n_crtcs; i++)
     {
@@ -825,7 +853,7 @@ meta_monitor_manager_xrandr_apply_configuration (MetaMonitorManager *manager,
               goto next;
             }
 
-          meta_error_trap_push (meta_get_display ());
+          meta_error_trap_push (display);
           ok = XRRSetCrtcConfig (manager_xrandr->xdisplay,
                                  manager_xrandr->resources,
                                  (XID)crtc->crtc_id,
@@ -834,7 +862,7 @@ meta_monitor_manager_xrandr_apply_configuration (MetaMonitorManager *manager,
                                  (XID)mode->mode_id,
                                  wl_transform_to_xrandr (crtc_info->transform),
                                  outputs, n_outputs);
-          meta_error_trap_pop (meta_get_display ());
+          meta_error_trap_pop (display);
 
           if (ok != Success)
             {
@@ -875,9 +903,11 @@ meta_monitor_manager_xrandr_apply_configuration (MetaMonitorManager *manager,
 
       if (output_info->is_primary)
         {
+          meta_error_trap_push (display);
           XRRSetOutputPrimary (manager_xrandr->xdisplay,
                                DefaultRootWindow (manager_xrandr->xdisplay),
                                (XID)output_info->output->output_id);
+          meta_error_trap_pop (display);
         }
 
       output_set_presentation_xrandr (manager_xrandr,
@@ -903,7 +933,7 @@ meta_monitor_manager_xrandr_apply_configuration (MetaMonitorManager *manager,
       output->is_primary = FALSE;
     }
 
-  meta_display_ungrab (meta_get_display ());
+  meta_display_ungrab (display);
 }
 
 static void
@@ -971,6 +1001,16 @@ meta_monitor_manager_xrandr_set_crtc_gamma (MetaMonitorManager *manager,
   XRRFreeGamma (gamma);
 }
 
+static void
+meta_monitor_manager_xrandr_rebuild_derived (MetaMonitorManager *manager)
+{
+  /* This will be a no-op if the change was from our side, as
+     we already called it in the DBus method handler */
+  meta_monitor_config_update_current (manager->config, manager);
+
+  meta_monitor_manager_rebuild_derived (manager);
+}
+
 static gboolean
 meta_monitor_manager_xrandr_handle_xevent (MetaMonitorManager *manager,
 					   XEvent             *event)
@@ -980,6 +1020,7 @@ meta_monitor_manager_xrandr_handle_xevent (MetaMonitorManager *manager,
   MetaCRTC *old_crtcs;
   MetaMonitorMode *old_modes;
   int n_old_outputs;
+  gboolean new_config;
 
   if ((event->type - manager_xrandr->rr_event_base) != RRScreenChangeNotify)
     return FALSE;
@@ -995,31 +1036,36 @@ meta_monitor_manager_xrandr_handle_xevent (MetaMonitorManager *manager,
   manager->serial++;
   meta_monitor_manager_xrandr_read_current (manager);
 
-  /* Check if the current intended configuration has the same outputs
-     as the new real one, or if the event is a result of an XRandR call.
-     If so, we can go straight to rebuild the logical config and tell
-     the outside world.
-     Otherwise, this event was caused by hotplug, so give a chance to
-     MetaMonitorConfig.
+  new_config = manager_xrandr->resources->timestamp >=
+    manager_xrandr->resources->configTimestamp;
+  if (meta_monitor_manager_has_hotplug_mode_update (manager))
 
-     Note that we need to check both the timestamps and the list of
-     outputs, because the X server might emit spurious events with
-     new configTimestamps (bug 702804), and the driver may have
-     changed the EDID for some other reason (old broken qxl and vbox
-     drivers...).
-  */
-  if (manager_xrandr->resources->timestamp >= manager_xrandr->resources->configTimestamp ||
-      meta_monitor_config_match_current (manager->config, manager))
     {
-      /* This will be a no-op if the change was from our side, as
-         we already called it in the DBus method handler */
-      meta_monitor_config_update_current (manager->config, manager);
-
-      meta_monitor_manager_rebuild_derived (manager);
+      /* Check if the current intended configuration is a result of an
+         XRandR call.  Otherwise, hotplug_mode_update tells us to get
+         a new preferred mode on hotplug events to handle dynamic
+         guest resizing. */
+      if (new_config)
+        meta_monitor_manager_xrandr_rebuild_derived (manager);
+      else
+        meta_monitor_config_make_default (manager->config, manager);
     }
   else
     {
-      if (!meta_monitor_config_apply_stored (manager->config, manager))
+      /* Check if the current intended configuration has the same outputs
+         as the new real one, or if the event is a result of an XRandR call.
+         If so, we can go straight to rebuild the logical config and tell
+         the outside world.
+         Otherwise, this event was caused by hotplug, so give a chance to
+         MetaMonitorConfig.
+
+         Note that we need to check both the timestamps and the list of
+         outputs, because the X server might emit spurious events with new
+         configTimestamps (bug 702804), and the driver may have changed
+         the EDID for some other reason (old qxl and vbox drivers). */
+      if (new_config || meta_monitor_config_match_current (manager->config, manager))
+        meta_monitor_manager_xrandr_rebuild_derived (manager);
+      else if (!meta_monitor_config_apply_stored (manager->config, manager))
         meta_monitor_config_make_default (manager->config, manager);
     }
 

src/core/monitor.c

@@ -806,6 +806,9 @@ meta_monitor_manager_handle_get_resources (MetaDBusDisplayConfig *skeleton,
                              g_variant_new_take_string (make_display_name (manager, output)));
       g_variant_builder_add (&properties, "{sv}", "backlight",
                              g_variant_new_int32 (output->backlight));
+      g_variant_builder_add (&properties, "{sv}", "min-backlight-step",
+                             g_variant_new_int32 ((output->backlight_max - output->backlight_min) ?
+                                                  100 / (output->backlight_max - output->backlight_min) : -1));
       g_variant_builder_add (&properties, "{sv}", "primary",
                              g_variant_new_boolean (output->is_primary));
       g_variant_builder_add (&properties, "{sv}", "presentation",

src/core/place.c

@@ -47,34 +47,18 @@ northwestcmp (gconstpointer a, gconstpointer b)
 {
   MetaWindow *aw = (gpointer) a;
   MetaWindow *bw = (gpointer) b;
+  MetaRectangle a_frame;
+  MetaRectangle b_frame;
   int from_origin_a;
   int from_origin_b;
   int ax, ay, bx, by;
 
-  /* we're interested in the frame position for cascading,
-   * not meta_window_get_position()
-   */
-  if (aw->frame)
-    {
-      ax = aw->frame->rect.x;
-      ay = aw->frame->rect.y;
-    }
-  else
-    {
-      ax = aw->rect.x;
-      ay = aw->rect.y;
-    }
-
-  if (bw->frame)
-    {
-      bx = bw->frame->rect.x;
-      by = bw->frame->rect.y;
-    }
-  else
-    {
-      bx = bw->rect.x;
-      by = bw->rect.y;
-    }
+  meta_window_get_frame_rect (aw, &a_frame);
+  meta_window_get_frame_rect (bw, &b_frame);
+  ax = a_frame.x;
+  ay = a_frame.y;
+  bx = b_frame.x;
+  by = b_frame.y;
   
   /* probably there's a fast good-enough-guess we could use here. */
   from_origin_a = sqrt (ax * ax + ay * ay);
@@ -90,7 +74,6 @@ northwestcmp (gconstpointer a, gconstpointer b)
 
 static void
 find_next_cascade (MetaWindow *window,
-                   MetaFrameBorders *borders,
                    /* visible windows on relevant workspaces */
                    GList      *windows,
                    int         x,
@@ -102,6 +85,7 @@ find_next_cascade (MetaWindow *window,
   GList *sorted;
   int cascade_x, cascade_y;
   int x_threshold, y_threshold;
+  MetaRectangle frame_rect;
   int window_width, window_height;
   int cascade_stage;
   MetaRectangle work_area;
@@ -120,10 +104,13 @@ find_next_cascade (MetaWindow *window,
    * manually cascade.
    */
 #define CASCADE_FUZZ 15
-  if (borders)
+  if (window->frame)
     {
-      x_threshold = MAX (borders->visible.left, CASCADE_FUZZ);
-      y_threshold = MAX (borders->visible.top, CASCADE_FUZZ);
+      MetaFrameBorders borders;
+
+      meta_frame_calc_borders (window->frame, &borders);
+      x_threshold = MAX (borders.visible.left, CASCADE_FUZZ);
+      y_threshold = MAX (borders.visible.top, CASCADE_FUZZ);
     }
   else
     {
@@ -143,30 +130,25 @@ find_next_cascade (MetaWindow *window,
   cascade_y = MAX (0, work_area.y);
   
   /* Find first cascade position that's not used. */
-  
-  window_width = window->frame ? window->frame->rect.width : window->rect.width;
-  window_height = window->frame ? window->frame->rect.height : window->rect.height;
+
+  meta_window_get_frame_rect (window, &frame_rect);
+  window_width = frame_rect.width;
+  window_height = frame_rect.height;
   
   cascade_stage = 0;
   tmp = sorted;
   while (tmp != NULL)
     {
       MetaWindow *w;
+      MetaRectangle w_frame_rect;
       int wx, wy;
       
       w = tmp->data;
 
       /* we want frame position, not window position */
-      if (w->frame)
-        {
-          wx = w->frame->rect.x;
-          wy = w->frame->rect.y;
-        }
-      else
-        {
-          wx = w->rect.x;
-          wy = w->rect.y;
-        }
+      meta_window_get_frame_rect (w, &w_frame_rect);
+      wx = w_frame_rect.x;
+      wy = w_frame_rect.y;
       
       if (ABS (wx - cascade_x) < x_threshold &&
           ABS (wy - cascade_y) < y_threshold)
@@ -223,22 +205,12 @@ find_next_cascade (MetaWindow *window,
   
   g_list_free (sorted);
 
-  /* Convert coords to position of window, not position of frame. */
-  if (borders == NULL)
-    {
-      *new_x = cascade_x;
-      *new_y = cascade_y;
-    }
-  else
-    {
-      *new_x = cascade_x + borders->visible.left;
-      *new_y = cascade_y + borders->visible.top;
-    }
+  *new_x = cascade_x;
+  *new_y = cascade_y;
 }
 
 static void
 find_most_freespace (MetaWindow *window,
-                     MetaFrameBorders *borders,
                      /* visible windows on relevant workspaces */
                      MetaWindow *focus_window,
                      int         x,
@@ -250,29 +222,25 @@ find_most_freespace (MetaWindow *window,
   int max_area;
   int max_width, max_height, left, right, top, bottom;
   int left_space, right_space, top_space, bottom_space;
-  int frame_size_left, frame_size_top;
   MetaRectangle work_area;
   MetaRectangle avoid;
-  MetaRectangle outer;
-
-  frame_size_left = borders ? borders->visible.left : 0;
-  frame_size_top  = borders ? borders->visible.top : 0;
+  MetaRectangle frame_rect;
 
   meta_window_get_work_area_current_monitor (focus_window, &work_area);
-  meta_window_get_outer_rect (focus_window, &avoid);
-  meta_window_get_outer_rect (window, &outer);
+  meta_window_get_frame_rect (focus_window, &avoid);
+  meta_window_get_frame_rect (window, &frame_rect);
 
   /* Find the areas of choosing the various sides of the focus window */
-  max_width  = MIN (avoid.width, outer.width);
-  max_height = MIN (avoid.height, outer.height);
+  max_width  = MIN (avoid.width, frame_rect.width);
+  max_height = MIN (avoid.height, frame_rect.height);
   left_space   = avoid.x - work_area.x;
   right_space  = work_area.width - (avoid.x + avoid.width - work_area.x);
   top_space    = avoid.y - work_area.y;
   bottom_space = work_area.height - (avoid.y + avoid.height - work_area.y);
-  left   = MIN (left_space,   outer.width);
-  right  = MIN (right_space,  outer.width);
-  top    = MIN (top_space,    outer.height);
-  bottom = MIN (bottom_space, outer.height);
+  left   = MIN (left_space,   frame_rect.width);
+  right  = MIN (right_space,  frame_rect.width);
+  top    = MIN (top_space,    frame_rect.height);
+  bottom = MIN (bottom_space, frame_rect.height);
 
   /* Find out which side of the focus_window can show the most of the window */
   side = META_LEFT;
@@ -304,39 +272,56 @@ find_most_freespace (MetaWindow *window,
   switch (side)
     {
     case META_LEFT:
-      *new_y = avoid.y + frame_size_top;
-      if (left_space > outer.width)
-        *new_x = avoid.x - outer.width + frame_size_left;
+      *new_y = avoid.y;
+      if (left_space > frame_rect.width)
+        *new_x = avoid.x - frame_rect.width;
       else
-        *new_x = work_area.x + frame_size_left;
+        *new_x = work_area.x;
       break;
     case META_RIGHT:
-      *new_y = avoid.y + frame_size_top;
-      if (right_space > outer.width)
-        *new_x = avoid.x + avoid.width + frame_size_left;
+      *new_y = avoid.y;
+      if (right_space > frame_rect.width)
+        *new_x = avoid.x + avoid.width;
       else
-        *new_x = work_area.x + work_area.width - outer.width + frame_size_left;
+        *new_x = work_area.x + work_area.width - frame_rect.width;
       break;
     case META_TOP:
-      *new_x = avoid.x + frame_size_left;
-      if (top_space > outer.height)
-        *new_y = avoid.y - outer.height + frame_size_top;
+      *new_x = avoid.x;
+      if (top_space > frame_rect.height)
+        *new_y = avoid.y - frame_rect.height;
       else
-        *new_y = work_area.y + frame_size_top;
+        *new_y = work_area.y;
       break;
     case META_BOTTOM:
-      *new_x = avoid.x + frame_size_left;
-      if (bottom_space > outer.height)
-        *new_y = avoid.y + avoid.height + frame_size_top;
+      *new_x = avoid.x;
+      if (bottom_space > frame_rect.height)
+        *new_y = avoid.y + avoid.height;
       else
-        *new_y = work_area.y + work_area.height - outer.height + frame_size_top;
+        *new_y = work_area.y + work_area.height - frame_rect.height;
       break;
     }
 }
 
+static gboolean
+window_overlaps_focus_window (MetaWindow *window)
+{
+  MetaWindow *focus_window;
+  MetaRectangle window_frame, focus_frame, overlap;
+
+  focus_window = window->display->focus_window;
+  if (focus_window == NULL)
+    return FALSE;
+
+  meta_window_get_frame_rect (window, &window_frame);
+  meta_window_get_frame_rect (focus_window, &focus_frame);
+
+  return meta_rectangle_intersect (&window_frame,
+                                   &focus_frame,
+                                   &overlap);
+}
+
 static void
 avoid_being_obscured_as_second_modal_dialog (MetaWindow *window,
-                                             MetaFrameBorders *borders,
                                              int        *x,
                                              int        *y)
 {
@@ -355,18 +340,17 @@ avoid_being_obscured_as_second_modal_dialog (MetaWindow *window,
    */
 
   MetaWindow *focus_window;
-  MetaRectangle overlap;
 
   focus_window = window->display->focus_window;
 
+  /* denied_focus_and_not_transient is only set when focus_window != NULL */
+
   if (window->denied_focus_and_not_transient &&
       window->wm_state_modal && /* FIXME: Maybe do this for all transients? */
       meta_window_same_application (window, focus_window) &&
-      meta_rectangle_intersect (&window->rect,
-                                &focus_window->rect,
-                                &overlap))
+      window_overlaps_focus_window (window))
     {
-      find_most_freespace (window, borders, focus_window, *x, *y, x, y);
+      find_most_freespace (window, focus_window, *x, *y, x, y);
       meta_topic (META_DEBUG_PLACEMENT,
                   "Dialog window %s was denied focus but may be modal "
                   "to the focus window; had to move it to avoid the "
@@ -409,7 +393,7 @@ rectangle_overlaps_some_window (MetaRectangle *rect,
         case META_WINDOW_UTILITY:
         case META_WINDOW_TOOLBAR:
         case META_WINDOW_MENU:
-          meta_window_get_outer_rect (other, &other_rect);
+          meta_window_get_frame_rect (other, &other_rect);
           
           if (meta_rectangle_intersect (rect, &other_rect, &dest))
             return TRUE;
@@ -427,20 +411,14 @@ leftmost_cmp (gconstpointer a, gconstpointer b)
 {
   MetaWindow *aw = (gpointer) a;
   MetaWindow *bw = (gpointer) b;
+  MetaRectangle a_frame;
+  MetaRectangle b_frame;
   int ax, bx;
 
-  /* we're interested in the frame position for cascading,
-   * not meta_window_get_position()
-   */
-  if (aw->frame)
-    ax = aw->frame->rect.x;
-  else
-    ax = aw->rect.x;
-
-  if (bw->frame)
-    bx = bw->frame->rect.x;
-  else
-    bx = bw->rect.x;
+  meta_window_get_frame_rect (aw, &a_frame);
+  meta_window_get_frame_rect (bw, &b_frame);
+  ax = a_frame.x;
+  bx = b_frame.x;
 
   if (ax < bx)
     return -1;
@@ -455,20 +433,14 @@ topmost_cmp (gconstpointer a, gconstpointer b)
 {
   MetaWindow *aw = (gpointer) a;
   MetaWindow *bw = (gpointer) b;
+  MetaRectangle a_frame;
+  MetaRectangle b_frame;
   int ay, by;
 
-  /* we're interested in the frame position for cascading,
-   * not meta_window_get_position()
-   */
-  if (aw->frame)
-    ay = aw->frame->rect.y;
-  else
-    ay = aw->rect.y;
-
-  if (bw->frame)
-    by = bw->frame->rect.y;
-  else
-    by = bw->rect.y;
+  meta_window_get_frame_rect (aw, &a_frame);
+  meta_window_get_frame_rect (bw, &b_frame);
+  ay = a_frame.y;
+  by = b_frame.y;
 
   if (ay < by)
     return -1;
@@ -506,7 +478,6 @@ center_tile_rect_in_area (MetaRectangle *rect,
  */
 static gboolean
 find_first_fit (MetaWindow *window,
-                MetaFrameBorders *borders,
                 /* visible windows on relevant workspaces */
                 GList      *windows,
 		int         monitor,
@@ -540,15 +511,8 @@ find_first_fit (MetaWindow *window,
   right_sorted = g_list_copy (windows);
   right_sorted = g_list_sort (right_sorted, topmost_cmp);
   right_sorted = g_list_sort (right_sorted, leftmost_cmp);
-  
-  rect.width = window->rect.width;
-  rect.height = window->rect.height;
-  
-  if (borders)
-    {
-      rect.width += borders->visible.left + borders->visible.right;
-      rect.height += borders->visible.top + borders->visible.bottom;
-    }
+
+  meta_window_get_frame_rect (window, &rect);
 
 #ifdef WITH_VERBOSE_MODE
     {
@@ -570,11 +534,6 @@ find_first_fit (MetaWindow *window,
       {
         *new_x = rect.x;
         *new_y = rect.y;
-        if (borders)
-          {
-            *new_x += borders->visible.left;
-            *new_y += borders->visible.top;
-          }
     
         retval = TRUE;
        
@@ -586,23 +545,18 @@ find_first_fit (MetaWindow *window,
     while (tmp != NULL)
       {
         MetaWindow *w = tmp->data;
-        MetaRectangle outer_rect;
+        MetaRectangle frame_rect;
 
-        meta_window_get_outer_rect (w, &outer_rect);
+        meta_window_get_frame_rect (w, &frame_rect);
       
-        rect.x = outer_rect.x;
-        rect.y = outer_rect.y + outer_rect.height;
+        rect.x = frame_rect.x;
+        rect.y = frame_rect.y + frame_rect.height;
       
         if (meta_rectangle_contains_rect (&work_area, &rect) &&
             !rectangle_overlaps_some_window (&rect, below_sorted))
           {
             *new_x = rect.x;
             *new_y = rect.y;
-            if (borders)
-              {
-                *new_x += borders->visible.left;
-                *new_y += borders->visible.top;
-              }
           
             retval = TRUE;
           
@@ -617,23 +571,18 @@ find_first_fit (MetaWindow *window,
     while (tmp != NULL)
       {
         MetaWindow *w = tmp->data;
-        MetaRectangle outer_rect;
+        MetaRectangle frame_rect;
    
-        meta_window_get_outer_rect (w, &outer_rect);
+        meta_window_get_frame_rect (w, &frame_rect);
      
-        rect.x = outer_rect.x + outer_rect.width;
-        rect.y = outer_rect.y;
+        rect.x = frame_rect.x + frame_rect.width;
+        rect.y = frame_rect.y;
    
         if (meta_rectangle_contains_rect (&work_area, &rect) &&
             !rectangle_overlaps_some_window (&rect, right_sorted))
           {
             *new_x = rect.x;
             *new_y = rect.y;
-            if (borders)
-              {
-                *new_x += borders->visible.left;
-                *new_y += borders->visible.top;
-              }
         
             retval = TRUE;
        
@@ -652,7 +601,6 @@ find_first_fit (MetaWindow *window,
 
 void
 meta_window_place (MetaWindow        *window,
-                   MetaFrameBorders  *borders,
                    int                x,
                    int                y,
                    int               *new_x,
@@ -661,13 +609,6 @@ meta_window_place (MetaWindow        *window,
   GList *windows;
   const MetaMonitorInfo *xi;
 
-  /* frame member variables should NEVER be used in here, only
-   * MetaFrameBorders. But remember borders == NULL
-   * for undecorated windows. Also, this function should
-   * NEVER have side effects other than computing the
-   * placement coordinates.
-   */
-
   meta_topic (META_DEBUG_PLACEMENT, "Placing window %s\n", window->desc);
 
   windows = NULL;
@@ -756,7 +697,7 @@ meta_window_place (MetaWindow        *window,
         {
           meta_topic (META_DEBUG_PLACEMENT,
                       "Not placing window with PPosition or USPosition set\n");
-          avoid_being_obscured_as_second_modal_dialog (window, borders, &x, &y);
+          avoid_being_obscured_as_second_modal_dialog (window, &x, &y);
           goto done_no_constraints;
         }
     }
@@ -775,29 +716,27 @@ meta_window_place (MetaWindow        *window,
 
       if (parent)
         {
-          int w;
+          MetaRectangle frame_rect, parent_frame_rect;
 
-          meta_window_get_position (parent, &x, &y);
-          w = parent->rect.width;
+          meta_window_get_frame_rect (window, &frame_rect);
+          meta_window_get_frame_rect (parent, &parent_frame_rect);
+
+          y = parent_frame_rect.y;
 
           /* center of parent */
-          x = x + w / 2;
+          x = parent_frame_rect.x + parent_frame_rect.width / 2;
           /* center of child over center of parent */
-          x -= window->rect.width / 2;
+          x -= frame_rect.width / 2;
 
           /* "visually" center window over parent, leaving twice as
            * much space below as on top.
            */
-          y += (parent->rect.height - window->rect.height)/3;
-
-          /* put top of child's frame, not top of child's client */
-          if (borders)
-            y += borders->visible.top;
+          y += (parent_frame_rect.height - frame_rect.height)/3;
 
           meta_topic (META_DEBUG_PLACEMENT, "Centered window %s over transient parent\n",
                       window->desc);
           
-          avoid_being_obscured_as_second_modal_dialog (window, borders, &x, &y);
+          avoid_being_obscured_as_second_modal_dialog (window, &x, &y);
 
           goto done;
         }
@@ -813,6 +752,9 @@ meta_window_place (MetaWindow        *window,
     {
       /* Center on current monitor */
       int w, h;
+      MetaRectangle frame_rect;
+
+      meta_window_get_frame_rect (window, &frame_rect);
 
       /* Warning, this function is a round trip! */
       xi = meta_screen_get_current_monitor_info (window->screen);
@@ -820,8 +762,8 @@ meta_window_place (MetaWindow        *window,
       w = xi->rect.width;
       h = xi->rect.height;
 
-      x = (w - window->rect.width) / 2;
-      y = (h - window->rect.height) / 2;
+      x = (w - frame_rect.width) / 2;
+      y = (h - frame_rect.height) / 2;
 
       x += xi->rect.x;
       y += xi->rect.y;
@@ -865,7 +807,7 @@ meta_window_place (MetaWindow        *window,
   x = xi->rect.x;
   y = xi->rect.y;
 
-  if (find_first_fit (window, borders, windows,
+  if (find_first_fit (window, windows,
                       xi->number,
                       x, y, &x, &y))
     goto done_check_denied_focus;
@@ -878,17 +820,17 @@ meta_window_place (MetaWindow        *window,
       !window->fullscreen)
     {
       MetaRectangle workarea;
-      MetaRectangle outer;
+      MetaRectangle frame_rect;
 
       meta_window_get_work_area_for_monitor (window,
                                              xi->number,
                                              &workarea);      
-      meta_window_get_outer_rect (window, &outer);
+      meta_window_get_frame_rect (window, &frame_rect);
       
       /* If the window is bigger than the screen, then automaximize.  Do NOT
        * auto-maximize the directions independently.  See #419810.
        */
-      if (outer.width >= workarea.width && outer.height >= workarea.height)
+      if (frame_rect.width >= workarea.width && frame_rect.height >= workarea.height)
         {
           window->maximize_horizontally_after_placement = TRUE;
           window->maximize_vertically_after_placement = TRUE;
@@ -899,7 +841,7 @@ meta_window_place (MetaWindow        *window,
    * fully overlapping window (e.g. starting multiple terminals)
    * */
   if (x == xi->rect.x && y == xi->rect.y)  
-    find_next_cascade (window, borders, windows, x, y, &x, &y);
+    find_next_cascade (window, windows, x, y, &x, &y);
 
  done_check_denied_focus:
   /* If the window is being denied focus and isn't a transient of the
@@ -909,17 +851,14 @@ meta_window_place (MetaWindow        *window,
    */
   if (window->denied_focus_and_not_transient)
     {
-      gboolean       found_fit;
       MetaWindow    *focus_window;
-      MetaRectangle  overlap;
+      gboolean       found_fit;
 
       focus_window = window->display->focus_window;
       g_assert (focus_window != NULL);
 
       /* No need to do anything if the window doesn't overlap at all */
-      found_fit = !meta_rectangle_intersect (&window->rect,
-                                             &focus_window->rect,
-                                             &overlap);
+      found_fit = !window_overlaps_focus_window (window);
 
       /* Try to do a first fit again, this time only taking into account the
        * focus window.
@@ -933,7 +872,7 @@ meta_window_place (MetaWindow        *window,
           x = xi->rect.x;
           y = xi->rect.y;
 
-          found_fit = find_first_fit (window, borders, focus_window_list,
+          found_fit = find_first_fit (window, focus_window_list,
                                       xi->number,
                                       x, y, &x, &y);
           g_list_free (focus_window_list);
@@ -943,7 +882,7 @@ meta_window_place (MetaWindow        *window,
        * as possible.
        */
       if (!found_fit)
-        find_most_freespace (window, borders, focus_window, x, y, &x, &y);
+        find_most_freespace (window, focus_window, x, y, &x, &y);
     }
   
  done:

src/core/place.h

@@ -28,7 +28,6 @@
 #include "frame.h"
 
 void meta_window_place (MetaWindow *window,
-                        MetaFrameBorders *borders,
                         int         x,
                         int         y,
                         int        *new_x,

src/core/screen.c

@@ -476,6 +476,9 @@ create_guard_window (Display *xdisplay, MetaScreen *screen)
 		   CWEventMask|CWOverrideRedirect|CWBackPixel,
 		   &attributes);
 
+  /* https://bugzilla.gnome.org/show_bug.cgi?id=710346 */
+  XStoreName (xdisplay, guard_window, "mutter guard window");
+
   {
     unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
     XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
@@ -856,9 +859,9 @@ meta_screen_free (MetaScreen *screen,
                   screen->wm_sn_selection_window);
   
   if (screen->work_area_later != 0)
-    g_source_remove (screen->work_area_later);
+    meta_later_remove (screen->work_area_later);
   if (screen->check_fullscreen_later != 0)
-    g_source_remove (screen->check_fullscreen_later);
+    meta_later_remove (screen->check_fullscreen_later);
 
   if (screen->monitor_infos)
     g_free (screen->monitor_infos);
@@ -1525,7 +1528,7 @@ meta_screen_tab_popup_create (MetaScreen      *screen,
       if (show_type == META_TAB_SHOW_INSTANTLY ||
           !entries[i].hidden                   ||
           !meta_window_get_icon_geometry (window, &r))
-        meta_window_get_outer_rect (window, &r);
+        meta_window_get_frame_rect (window, &r);
 
       entries[i].rect = r;
 
@@ -1908,7 +1911,7 @@ meta_screen_get_monitor_for_window (MetaScreen *screen,
 {
   MetaRectangle window_rect;
   
-  meta_window_get_outer_rect (window, &window_rect);
+  meta_window_get_frame_rect (window, &window_rect);
 
   return meta_screen_get_monitor_for_rect (screen, &window_rect);
 }

src/core/stack.c

@@ -1465,7 +1465,7 @@ window_contains_point (MetaWindow *window,
 {
   MetaRectangle rect;
 
-  meta_window_get_outer_rect (window, &rect);
+  meta_window_get_frame_rect (window, &rect);
 
   return POINT_IN_RECT (root_x, root_y, rect);
 }
@@ -1484,14 +1484,12 @@ get_default_focus_window (MetaStack     *stack,
    * or top window in same group as not_this_one.
    */
 
-  MetaWindow *topmost_dock;
   MetaWindow *transient_parent;
   MetaWindow *topmost_in_group;
   MetaWindow *topmost_overall;
   MetaGroup *not_this_one_group;
   GList *link;
   
-  topmost_dock = NULL;
   transient_parent = NULL;
   topmost_in_group = NULL;
   topmost_overall = NULL;
@@ -1517,10 +1515,6 @@ get_default_focus_window (MetaStack     *stack,
           (workspace == NULL ||
            meta_window_located_on_workspace (window, workspace)))
         {
-          if (topmost_dock == NULL &&
-              window->type == META_WINDOW_DOCK)
-            topmost_dock = window;
-
           if (not_this_one != NULL)
             {
               if (transient_parent == NULL &&
@@ -1538,10 +1532,6 @@ get_default_focus_window (MetaStack     *stack,
                 topmost_in_group = window;
             }
 
-          /* Note that DESKTOP windows can be topmost_overall so
-           * we prefer focusing desktop or other windows over
-           * focusing dock, even though docks are stacked higher.
-           */
           if (topmost_overall == NULL &&
               window->type != META_WINDOW_DOCK &&
               (!must_be_at_point ||
@@ -1563,7 +1553,7 @@ get_default_focus_window (MetaStack     *stack,
   else if (topmost_overall)
     return topmost_overall;
   else
-    return topmost_dock;
+    return NULL;
 }
 
 MetaWindow*

src/core/window-private.h

@@ -352,6 +352,12 @@ struct _MetaWindow
   /* if non-NULL, the opaque region _NET_WM_OPAQUE_REGION */
   cairo_region_t *opaque_region;
 
+  /* the input shape region for picking */
+  cairo_region_t *input_region;
+
+  /* _NET_WM_WINDOW_OPACITY */
+  guint opacity;
+
   /* if TRUE, the we have the new form of sync request counter which
    * also handles application frames */
   guint extended_sync_request_counter : 1;
@@ -512,6 +518,7 @@ void        meta_window_update_fullscreen_monitors (MetaWindow    *window,
                                                     unsigned long  left,
                                                     unsigned long  right);
 
+
 /* args to move are window pos, not frame pos */
 void        meta_window_move               (MetaWindow  *window,
                                             gboolean     user_op,
@@ -655,6 +662,8 @@ void meta_window_recalc_features    (MetaWindow *window);
 
 void meta_window_recalc_window_type (MetaWindow *window);
 
+void meta_window_frame_size_changed (MetaWindow *window);
+
 void meta_window_stack_just_below (MetaWindow *window,
                                    MetaWindow *below_this_one);
 
@@ -682,8 +691,16 @@ void meta_window_set_opaque_region        (MetaWindow     *window,
                                            cairo_region_t *region);
 void meta_window_update_opaque_region_x11 (MetaWindow *window);
 
+void meta_window_set_input_region         (MetaWindow     *window,
+                                           cairo_region_t *region);
+void meta_window_update_input_region_x11  (MetaWindow *window);
+
 void meta_window_set_shape_region         (MetaWindow     *window,
                                            cairo_region_t *region);
 void meta_window_update_shape_region_x11  (MetaWindow *window);
+void meta_window_set_opacity              (MetaWindow *window,
+                                           guint       opacity);
+
+Window meta_window_get_toplevel_xwindow (MetaWindow *window);
 
 #endif

src/core/window-props.c

@@ -316,6 +316,9 @@ reload_gtk_frame_extents (MetaWindow    *window,
     {
       window->has_custom_frame_extents = FALSE;
     }
+
+  if (!initial)
+    meta_window_queue(window, META_QUEUE_MOVE_RESIZE);
 }
 
 static void
@@ -1706,6 +1709,20 @@ reload_bypass_compositor (MetaWindow    *window,
   window->bypass_compositor = requested_value;
 }
 
+static void
+reload_window_opacity (MetaWindow    *window,
+                       MetaPropValue *value,
+                       gboolean       initial)
+
+{
+  int requested_value = 0xFF;
+
+  if (value->type != META_PROP_VALUE_INVALID)
+    requested_value = (int) value->v.cardinal;
+
+  meta_window_set_opacity (window, requested_value);
+}
+
 #define RELOAD_STRING(var_name, propname) \
   static void                                       \
   reload_ ## var_name (MetaWindow    *window,       \
@@ -1808,6 +1825,7 @@ meta_display_init_window_prop_hooks (MetaDisplay *display)
     { display->atom__NET_WM_STRUT,         META_PROP_VALUE_INVALID, reload_struts,            FALSE, FALSE },
     { display->atom__NET_WM_STRUT_PARTIAL, META_PROP_VALUE_INVALID, reload_struts,            FALSE, FALSE },
     { display->atom__NET_WM_BYPASS_COMPOSITOR, META_PROP_VALUE_CARDINAL,  reload_bypass_compositor, FALSE, FALSE },
+    { display->atom__NET_WM_WINDOW_OPACITY, META_PROP_VALUE_CARDINAL, reload_window_opacity,  TRUE, TRUE },
     { 0 },
   };
 

src/core/window.c

@@ -1194,12 +1194,15 @@ meta_window_new_with_attrs (MetaDisplay       *display,
   meta_display_register_x_window (display, &window->xwindow, window);
 
   meta_window_update_shape_region_x11 (window);
+  meta_window_update_input_region_x11 (window);
 
   /* Assign this #MetaWindow a sequence number which can be used
    * for sorting.
    */
   window->stable_sequence = ++display->window_sequence_counter;
 
+  window->opacity = 0xFF;
+
   /* assign the window to its group, or create a new group if needed
    */
   window->group = NULL;
@@ -1444,9 +1447,6 @@ meta_window_new_with_attrs (MetaDisplay       *display,
       set_net_wm_state (window);
     }
 
-  if (screen->display->compositor)
-    meta_compositor_add_window (screen->display->compositor, window);
-
   /* Sync stack changes */
   meta_stack_thaw (window->screen->stack);
 
@@ -1669,8 +1669,6 @@ meta_window_unmanage (MetaWindow  *window,
       if (window->visible_to_compositor)
         meta_compositor_hide_window (window->display->compositor, window,
                                      META_COMP_EFFECT_DESTROY);
-
-      meta_compositor_remove_window (window->display->compositor, window);
     }
 
   if (window->display->window_with_menu == window)
@@ -1869,6 +1867,8 @@ meta_window_unmanage (MetaWindow  *window,
   meta_window_ungrab_keys (window);
   meta_display_ungrab_window_buttons (window->display, window->xwindow);
   meta_display_ungrab_focus_window_button (window->display, window);
+  if (window->display->autoraise_window == window)
+    meta_display_remove_autoraise_callback (window->display);
 
   meta_display_unregister_x_window (window->display, window->xwindow);
 
@@ -2791,8 +2791,8 @@ static gboolean
 windows_overlap (const MetaWindow *w1, const MetaWindow *w2)
 {
   MetaRectangle w1rect, w2rect;
-  meta_window_get_outer_rect (w1, &w1rect);
-  meta_window_get_outer_rect (w2, &w2rect);
+  meta_window_get_frame_rect (w1, &w1rect);
+  meta_window_get_frame_rect (w2, &w2rect);
   return meta_rectangle_overlap (&w1rect, &w2rect);
 }
 
@@ -3138,7 +3138,7 @@ meta_window_show (MetaWindow *window)
   if (toplevel_now_mapped != toplevel_was_mapped)
     {
       if (window->display->compositor)
-        meta_compositor_window_mapped (window->display->compositor, window);
+        meta_compositor_add_window (window->display->compositor, window);
     }
 
   if (!window->visible_to_compositor)
@@ -3287,13 +3287,7 @@ meta_window_hide (MetaWindow *window)
   if (toplevel_now_mapped != toplevel_was_mapped)
     {
       if (window->display->compositor)
-        {
-          /* As above, we may be *mapping* live hidden windows */
-          if (toplevel_now_mapped)
-            meta_compositor_window_mapped (window->display->compositor, window);
-          else
-            meta_compositor_window_unmapped (window->display->compositor, window);
-        }
+        meta_compositor_remove_window (window->display->compositor, window);
     }
 
   set_net_wm_state (window);
@@ -3593,11 +3587,11 @@ meta_window_maximize (MetaWindow        *window,
           MetaRectangle old_rect;
 	  MetaRectangle new_rect;
 
-	  meta_window_get_outer_rect (window, &old_rect);
+	  meta_window_get_frame_rect (window, &old_rect);
 
           meta_window_move_resize_now (window);
 
-	  meta_window_get_outer_rect (window, &new_rect);
+	  meta_window_get_frame_rect (window, &new_rect);
           meta_compositor_maximize_window (window->display->compositor,
                                            window,
                                            &old_rect,
@@ -3656,7 +3650,7 @@ meta_window_get_all_monitors (MetaWindow *window, gsize *length)
   int i;
 
   monitors = g_array_new (FALSE, FALSE, sizeof (int));
-  meta_window_get_outer_rect (window, &window_rect);
+  meta_window_get_frame_rect (window, &window_rect);
 
   for (i = 0; i < window->screen->n_monitor_infos; i++)
     {
@@ -3689,7 +3683,7 @@ meta_window_is_screen_sized (MetaWindow *window)
   int screen_width, screen_height;
 
   meta_screen_get_size (window->screen, &screen_width, &screen_height);
-  meta_window_get_outer_rect (window, &window_rect);
+  meta_window_get_frame_rect (window, &window_rect);
 
   if (window_rect.x == 0 && window_rect.y == 0 &&
       window_rect.width == screen_width && window_rect.height == screen_height)
@@ -3718,7 +3712,7 @@ meta_window_is_monitor_sized (MetaWindow *window)
     {
       MetaRectangle window_rect, monitor_rect;
 
-      meta_window_get_outer_rect (window, &window_rect);
+      meta_window_get_frame_rect (window, &window_rect);
       meta_screen_get_monitor_geometry (window->screen, window->monitor->number, &monitor_rect);
 
       if (meta_rectangle_equal (&window_rect, &monitor_rect))
@@ -3786,11 +3780,11 @@ meta_window_tile (MetaWindow *window)
       MetaRectangle old_rect;
       MetaRectangle new_rect;
 
-      meta_window_get_outer_rect (window, &old_rect);
+      meta_window_get_frame_rect (window, &old_rect);
 
       meta_window_move_resize_now (window);
 
-      meta_window_get_outer_rect (window, &new_rect);
+      meta_window_get_frame_rect (window, &new_rect);
       meta_compositor_maximize_window (window->display->compositor,
                                        window,
                                        &old_rect,
@@ -3819,7 +3813,7 @@ meta_window_can_tile_side_by_side (MetaWindow *window)
 {
   int monitor;
   MetaRectangle tile_area;
-  MetaFrameBorders borders;
+  MetaRectangle client_rect;
 
   if (!meta_window_can_tile_maximized (window))
     return FALSE;
@@ -3833,13 +3827,10 @@ meta_window_can_tile_side_by_side (MetaWindow *window)
 
   tile_area.width /= 2;
 
-  meta_frame_calc_borders (window->frame, &borders);
+  meta_window_frame_rect_to_client_rect (window, &tile_area, &client_rect);
 
-  tile_area.width  -= (borders.visible.left + borders.visible.right);
-  tile_area.height -= (borders.visible.top + borders.visible.bottom);
-
-  return tile_area.width >= window->size_hints.min_width &&
-         tile_area.height >= window->size_hints.min_height;
+  return client_rect.width >= window->size_hints.min_width &&
+         client_rect.height >= window->size_hints.min_height;
 }
 
 static void
@@ -3900,8 +3891,10 @@ meta_window_unmaximize_internal (MetaWindow        *window,
     {
       MetaRectangle target_rect;
       MetaRectangle work_area;
+      MetaRectangle old_rect;
 
       meta_window_get_work_area_for_monitor (window, window->monitor->number, &work_area);
+      meta_window_get_frame_rect (window, &old_rect);
 
       meta_topic (META_DEBUG_WINDOW_OPS,
                   "Unmaximizing %s%s\n",
@@ -3915,6 +3908,12 @@ meta_window_unmaximize_internal (MetaWindow        *window,
       window->maximized_vertically =
         window->maximized_vertically   && !unmaximize_vertically;
 
+      /* recalc_window_features() will eventually clear the cached frame
+       * extents, but we need the correct frame extents in the code below,
+       * so invalidate the old frame extents manually up front.
+       */
+      meta_window_frame_size_changed (window);
+
       /* Unmaximize to the saved_rect position in the direction(s)
        * being unmaximized.
        */
@@ -3959,9 +3958,7 @@ meta_window_unmaximize_internal (MetaWindow        *window,
 
       if (window->display->compositor)
         {
-          MetaRectangle old_rect, new_rect;
-
-	  meta_window_get_outer_rect (window, &old_rect);
+          MetaRectangle new_rect;
 
           meta_window_move_resize_internal (window,
                                             META_IS_MOVE_ACTION | META_IS_RESIZE_ACTION,
@@ -3971,7 +3968,7 @@ meta_window_unmaximize_internal (MetaWindow        *window,
                                             target_rect.width,
                                             target_rect.height);
 
-	  meta_window_get_outer_rect (window, &new_rect);
+	  meta_window_get_frame_rect (window, &new_rect);
           meta_compositor_unmaximize_window (window->display->compositor,
 					     window,
                                              &old_rect,
@@ -4076,6 +4073,7 @@ meta_window_set_above (MetaWindow *window,
   window->wm_state_above = new_value;
   meta_window_update_layer (window);
   set_net_wm_state (window);
+  meta_window_frame_size_changed (window);
   g_object_notify (G_OBJECT (window), "above");
 }
 
@@ -4215,6 +4213,7 @@ meta_window_shade (MetaWindow  *window,
       window->shaded = TRUE;
 
       meta_window_queue(window, META_QUEUE_MOVE_RESIZE | META_QUEUE_CALC_SHOWING);
+      meta_window_frame_size_changed (window);
 
       /* After queuing the calc showing, since _focus flushes it,
        * and we need to focus the frame
@@ -4240,6 +4239,7 @@ meta_window_unshade (MetaWindow  *window,
     {
       window->shaded = FALSE;
       meta_window_queue(window, META_QUEUE_MOVE_RESIZE | META_QUEUE_CALC_SHOWING);
+      meta_window_frame_size_changed (window);
 
       /* focus the window */
       meta_topic (META_DEBUG_FOCUS,
@@ -4967,7 +4967,6 @@ meta_window_move_resize_internal (MetaWindow          *window,
   did_placement = !window->placed && window->calc_placement;
 
   meta_window_constrain (window,
-                         window->frame ? &borders : NULL,
                          flags,
                          gravity,
                          &old_rect,
@@ -5396,23 +5395,10 @@ meta_window_move_frame (MetaWindow  *window,
                   int          root_x_nw,
                   int          root_y_nw)
 {
-  int x = root_x_nw;
-  int y = root_y_nw;
+  MetaRectangle rect = { root_x_nw, root_y_nw, 0, 0 };
 
-  if (window->frame)
-    {
-      MetaFrameBorders borders;
-      meta_frame_calc_borders (window->frame, &borders);
-
-      /* root_x_nw and root_y_nw correspond to where the top of
-       * the visible frame should be. Offset by the distance between
-       * the origin of the window and the origin of the enclosing
-       * window decorations.
-       */
-      x += window->frame->child_x - borders.invisible.left;
-      y += window->frame->child_y - borders.invisible.top;
-    }
-  meta_window_move (window, user_op, x, y);
+  meta_window_frame_rect_to_client_rect (window, &rect, &rect);
+  meta_window_move (window, user_op, rect.x, rect.y);
 }
 
 static void
@@ -5460,18 +5446,10 @@ meta_window_move_resize_frame (MetaWindow  *window,
                                int          w,
                                int          h)
 {
-  MetaFrameBorders borders;
+  MetaRectangle rect = { root_x_nw, root_y_nw, w, h };
+  meta_window_frame_rect_to_client_rect (window, &rect, &rect);
 
-  meta_frame_calc_borders (window->frame, &borders);
-  /* offset by the distance between the origin of the window
-   * and the origin of the enclosing window decorations ( + border)
-   */
-  root_x_nw += borders.visible.left;
-  root_y_nw += borders.visible.top;
-  w -= borders.visible.left + borders.visible.right;
-  h -= borders.visible.top + borders.visible.bottom;
-
-  meta_window_move_resize (window, user_op, root_x_nw, root_y_nw, w, h);
+  meta_window_move_resize (window, user_op, rect.x, rect.y, rect.width, rect.height);
 }
 
 /**
@@ -5784,16 +5762,110 @@ meta_window_get_input_rect (const MetaWindow *window,
 }
 
 /**
- * meta_window_get_outer_rect:
+ * meta_window_client_rect_to_frame_rect:
+ * @window: a #MetaWindow
+ * @client_rect: client rectangle in root coordinates
+ * @frame_rect: (out): location to store the computed corresponding frame bounds.
+ *
+ * Converts a desired bounds of the client window - what is passed to meta_window_move_resize() -
+ * into the corresponding bounds of the window frame (excluding invisible borders
+ * and client side shadows.)
+ */
+void
+meta_window_client_rect_to_frame_rect (MetaWindow    *window,
+                                       MetaRectangle *client_rect,
+                                       MetaRectangle *frame_rect)
+{
+  if (!frame_rect)
+    return;
+
+  *frame_rect = *client_rect;
+
+  /* The support for G_MAXINT here to mean infinity is a convenience for
+   * constraints.c:get_size_limits() and not something that we provide
+   * in other locations or document.
+   */
+  if (window->frame)
+    {
+      MetaFrameBorders borders;
+      meta_frame_calc_borders (window->frame, &borders);
+
+      frame_rect->x -= borders.visible.left;
+      frame_rect->y -= borders.visible.top;
+      if (frame_rect->width != G_MAXINT)
+        frame_rect->width += borders.visible.left + borders.visible.right;
+      if (frame_rect->height != G_MAXINT)
+        frame_rect->height += borders.visible.top  + borders.visible.bottom;
+    }
+  else
+    {
+      if (window->has_custom_frame_extents)
+        {
+          const GtkBorder *extents = &window->custom_frame_extents;
+          frame_rect->x += extents->left;
+          frame_rect->y += extents->top;
+          if (frame_rect->width != G_MAXINT)
+            frame_rect->width -= extents->left + extents->right;
+          if (frame_rect->height != G_MAXINT)
+            frame_rect->height -= extents->top + extents->bottom;
+        }
+    }
+}
+
+/**
+ * meta_window_frame_rect_to_client_rect:
+ * @window: a #MetaWindow
+ * @frame_rect: desired frame bounds for the window
+ * @client_rect: (out): location to store the computed corresponding client rectangle.
+ *
+ * Converts a desired frame bounds for a window into the bounds of the client
+ * window - what is passed to meta_window_move_resize().
+ */
+void
+meta_window_frame_rect_to_client_rect (MetaWindow    *window,
+                                       MetaRectangle *frame_rect,
+                                       MetaRectangle *client_rect)
+{
+  if (!client_rect)
+    return;
+
+  *client_rect = *frame_rect;
+
+  if (window->frame)
+    {
+      MetaFrameBorders borders;
+      meta_frame_calc_borders (window->frame, &borders);
+
+      client_rect->x += borders.visible.left;
+      client_rect->y += borders.visible.top;
+      client_rect->width  -= borders.visible.left + borders.visible.right;
+      client_rect->height -= borders.visible.top  + borders.visible.bottom;
+    }
+  else
+    {
+      if (window->has_custom_frame_extents)
+        {
+          const GtkBorder *extents = &window->custom_frame_extents;
+          client_rect->x -= extents->left;
+          client_rect->y -= extents->top;
+          client_rect->width += extents->left + extents->right;
+          client_rect->height += extents->top + extents->bottom;
+        }
+    }
+}
+
+/**
+ * meta_window_get_frame_rect:
  * @window: a #MetaWindow
  * @rect: (out): pointer to an allocated #MetaRectangle
  *
- * Gets the rectangle that bounds @window that is responsive to mouse events.
- * This includes only what is visible; it doesn't include any extra reactive
- * area we add to the edges of windows.
+ * Gets the rectangle that bounds @window that is what the user thinks of
+ * as the edge of the window. This doesn't include any extra reactive
+ * area that we or the client adds to the window, or any area that the
+ * client adds to draw a client-side shadow.
  */
 void
-meta_window_get_outer_rect (const MetaWindow *window,
+meta_window_get_frame_rect (const MetaWindow *window,
                             MetaRectangle    *rect)
 {
   if (window->frame)
@@ -5822,6 +5894,25 @@ meta_window_get_outer_rect (const MetaWindow *window,
     }
 }
 
+/**
+ * meta_window_get_outer_rect:
+ * @window: a #MetaWindow
+ * @rect: (out): pointer to an allocated #MetaRectangle
+ *
+ * Gets the rectangle that bounds @window that is what the user thinks of
+ * as the edge of the window. This doesn't include any extra reactive
+ * area that we or the client adds to the window, or any area that the
+ * client adds to draw a client-side shadow.
+ *
+ * Deprecated: 3.12: Use meta_window_get_frame_rect() instead.
+ */
+void
+meta_window_get_outer_rect (const MetaWindow *window,
+                            MetaRectangle    *rect)
+{
+  meta_window_get_frame_rect (window, rect);
+}
+
 const char*
 meta_window_get_startup_id (MetaWindow *window)
 {
@@ -6043,6 +6134,7 @@ window_stick_impl (MetaWindow  *window)
    * toggled back off.
    */
   window->on_all_workspaces_requested = TRUE;
+  meta_window_frame_size_changed (window);
   meta_window_update_on_all_workspaces (window);
 
   meta_window_queue(window, META_QUEUE_CALC_SHOWING);
@@ -6057,6 +6149,7 @@ window_unstick_impl (MetaWindow  *window)
   /* Revert to window->workspaces */
 
   window->on_all_workspaces_requested = FALSE;
+  meta_window_frame_size_changed (window);
   meta_window_update_on_all_workspaces (window);
 
   /* We change ourselves to the active workspace, since otherwise you'd get
@@ -6563,8 +6656,7 @@ meta_window_property_notify (MetaWindow *window,
 void
 meta_window_change_workspace_by_index (MetaWindow *window,
                                        gint        space_index,
-                                       gboolean    append,
-                                       guint32     timestamp)
+                                       gboolean    append)
 {
   MetaWorkspace *workspace;
   MetaScreen    *screen;
@@ -6583,11 +6675,7 @@ meta_window_change_workspace_by_index (MetaWindow *window,
     meta_screen_get_workspace_by_index (screen, space_index);
 
   if (!workspace && append)
-    {
-      if (timestamp == CurrentTime)
-        timestamp = meta_display_get_current_time_roundtrip (window->display);
-      workspace = meta_screen_append_new_workspace (screen, FALSE, timestamp);
-    }
+    workspace = meta_screen_append_new_workspace (screen, FALSE, CurrentTime);
 
   if (workspace)
     {
@@ -7137,6 +7225,7 @@ static void
 meta_window_appears_focused_changed (MetaWindow *window)
 {
   set_net_wm_state (window);
+  meta_window_frame_size_changed (window);
 
   g_object_notify (G_OBJECT (window), "appears-focused");
 
@@ -7717,6 +7806,91 @@ meta_window_set_shape_region (MetaWindow     *window,
     meta_compositor_window_shape_changed (window->display->compositor, window);
 }
 
+void
+meta_window_update_input_region_x11 (MetaWindow *window)
+{
+  cairo_region_t *region = NULL;
+
+#ifdef HAVE_SHAPE
+  if (META_DISPLAY_HAS_SHAPE (window->display))
+    {
+      /* Translate the set of XShape rectangles that we
+       * get from the X server to a cairo_region. */
+      XRectangle *rects = NULL;
+      int n_rects, ordering;
+
+      int x_bounding, y_bounding, x_clip, y_clip;
+      unsigned w_bounding, h_bounding, w_clip, h_clip;
+      int bounding_shaped, clip_shaped;
+
+      meta_error_trap_push (window->display);
+      XShapeQueryExtents (window->display->xdisplay, window->xwindow,
+                          &bounding_shaped, &x_bounding, &y_bounding,
+                          &w_bounding, &h_bounding,
+                          &clip_shaped, &x_clip, &y_clip,
+                          &w_clip, &h_clip);
+
+      rects = XShapeGetRectangles (window->display->xdisplay,
+                                   window->xwindow,
+                                   ShapeInput,
+                                   &n_rects,
+                                   &ordering);
+      meta_error_trap_pop (window->display);
+
+      /* XXX: The x shape extension doesn't provide a way to only test if an
+       * input shape has been specified, so we have to query and throw away the
+       * rectangles. */
+      if (rects)
+        {
+          if (n_rects > 1 ||
+              (n_rects == 1 &&
+               (rects[0].x != x_bounding ||
+                rects[1].y != y_bounding ||
+                rects[2].width != w_bounding ||
+                rects[3].height != h_bounding)))
+            region = region_create_from_x_rectangles (rects, n_rects);
+
+          XFree (rects);
+        }
+    }
+#endif /* HAVE_SHAPE */
+
+  if (region != NULL)
+    {
+      cairo_rectangle_int_t client_area;
+
+      client_area.x = 0;
+      client_area.y = 0;
+      client_area.width = window->rect.width;
+      client_area.height = window->rect.height;
+
+      /* The shape we get back from the client may have coordinates
+       * outside of the frame. The X SHAPE Extension requires that
+       * the overall shape the client provides never exceeds the
+       * "bounding rectangle" of the window -- the shape that the
+       * window would have gotten if it was unshaped. In our case,
+       * this is simply the client area.
+       */
+      cairo_region_intersect_rectangle (region, &client_area);
+    }
+
+  meta_window_set_input_region (window, region);
+  cairo_region_destroy (region);
+}
+
+void
+meta_window_set_input_region (MetaWindow     *window,
+                              cairo_region_t *region)
+{
+  g_clear_pointer (&window->input_region, cairo_region_destroy);
+
+  if (region != NULL)
+    window->input_region = cairo_region_reference (region);
+
+  if (window->display->compositor)
+    meta_compositor_window_shape_changed (window->display->compositor, window);
+}
+
 void
 meta_window_update_shape_region_x11 (MetaWindow *window)
 {
@@ -8224,6 +8398,13 @@ recalc_window_type (MetaWindow *window)
     }
 }
 
+void
+meta_window_frame_size_changed (MetaWindow *window)
+{
+  if (window->frame)
+    meta_frame_clear_cached_borders (window->frame);
+}
+
 static void
 set_allowed_actions_hint (MetaWindow *window)
 {
@@ -8423,18 +8604,13 @@ recalc_window_features (MetaWindow *window)
 
   if (window->has_maximize_func)
     {
-      MetaRectangle work_area;
-      MetaFrameBorders borders;
-      int min_frame_width, min_frame_height;
+      MetaRectangle work_area, client_rect;
 
       meta_window_get_work_area_current_monitor (window, &work_area);
-      meta_frame_calc_borders (window->frame, &borders);
+      meta_window_frame_rect_to_client_rect (window, &work_area, &client_rect);
 
-      min_frame_width = window->size_hints.min_width + borders.visible.left + borders.visible.right;
-      min_frame_height = window->size_hints.min_height + borders.visible.top + borders.visible.bottom;
-
-      if (min_frame_width >= work_area.width ||
-          min_frame_height >= work_area.height)
+      if (window->size_hints.min_width >= client_rect.width ||
+          window->size_hints.min_height >= client_rect.height)
         window->has_maximize_func = FALSE;
     }
 
@@ -8527,6 +8703,8 @@ recalc_window_features (MetaWindow *window)
   if (window->has_resize_func != old_has_resize_func)
     g_object_notify (G_OBJECT (window), "resizeable");
 
+  meta_window_frame_size_changed (window);
+
   /* FIXME perhaps should ensure if we don't have a shade func,
    * we aren't shaded, etc.
    */
@@ -8803,7 +8981,7 @@ meta_window_show_menu (MetaWindow *window,
 void
 meta_window_shove_titlebar_onscreen (MetaWindow *window)
 {
-  MetaRectangle  outer_rect;
+  MetaRectangle  frame_rect;
   GList         *onscreen_region;
   int            horiz_amount, vert_amount;
   int            newx, newy;
@@ -8815,15 +8993,15 @@ meta_window_shove_titlebar_onscreen (MetaWindow *window)
     return;
 
   /* Get the basic info we need */
-  meta_window_get_outer_rect (window, &outer_rect);
+  meta_window_get_frame_rect (window, &frame_rect);
   onscreen_region = window->screen->active_workspace->screen_region;
 
   /* Extend the region (just in case the window is too big to fit on the
    * screen), then shove the window on screen, then return the region to
    * normal.
    */
-  horiz_amount = outer_rect.width;
-  vert_amount  = outer_rect.height;
+  horiz_amount = frame_rect.width;
+  vert_amount  = frame_rect.height;
   meta_rectangle_expand_region (onscreen_region,
                                 horiz_amount,
                                 horiz_amount,
@@ -8831,15 +9009,15 @@ meta_window_shove_titlebar_onscreen (MetaWindow *window)
                                 vert_amount);
   meta_rectangle_shove_into_region(onscreen_region,
                                    FIXED_DIRECTION_X,
-                                   &outer_rect);
+                                   &frame_rect);
   meta_rectangle_expand_region (onscreen_region,
                                 -horiz_amount,
                                 -horiz_amount,
                                 0,
                                 -vert_amount);
 
-  newx = outer_rect.x + window->frame->child_x;
-  newy = outer_rect.y + window->frame->child_y;
+  newx = frame_rect.x + window->frame->child_x;
+  newy = frame_rect.y + window->frame->child_y;
   meta_window_move_resize (window,
                            FALSE,
                            newx,
@@ -8864,7 +9042,7 @@ meta_window_titlebar_is_onscreen (MetaWindow *window)
     return FALSE;
 
   /* Get the rectangle corresponding to the titlebar */
-  meta_window_get_outer_rect (window, &titlebar_rect);
+  meta_window_get_frame_rect (window, &titlebar_rect);
   titlebar_rect.height = window->frame->child_y;
 
   /* Run through the spanning rectangles for the screen and see if one of
@@ -9711,47 +9889,51 @@ meta_window_handle_mouse_grab_op_event (MetaWindow *window,
   switch (xev->evtype)
     {
     case XI_ButtonRelease:
-      meta_display_check_threshold_reached (window->display,
-                                            xev->root_x,
-                                            xev->root_y);
-      /* If the user was snap moving then ignore the button release
-       * because they may have let go of shift before releasing the
-       * mouse button and they almost certainly do not want a
-       * non-snapped movement to occur from the button release.
-       */
-      if (!window->display->grab_last_user_action_was_snap)
+      if (xev->detail == 1 ||
+          xev->detail == meta_prefs_get_mouse_button_resize ())
         {
-          if (meta_grab_op_is_moving (window->display->grab_op))
+          meta_display_check_threshold_reached (window->display,
+                                                xev->root_x,
+                                                xev->root_y);
+          /* If the user was snap moving then ignore the button
+           * release because they may have let go of shift before
+           * releasing the mouse button and they almost certainly do
+           * not want a non-snapped movement to occur from the button
+           * release.
+           */
+          if (!window->display->grab_last_user_action_was_snap)
             {
-              if (window->tile_mode != META_TILE_NONE)
-                meta_window_tile (window);
-              else if (xev->root == window->screen->xroot)
-                update_move (window,
-                             xev->mods.effective & ShiftMask,
-                             xev->root_x,
-                             xev->root_y);
-            }
-          else if (meta_grab_op_is_resizing (window->display->grab_op))
-            {
-              if (xev->root == window->screen->xroot)
-                update_resize (window,
-                               xev->mods.effective & ShiftMask,
-                               xev->root_x,
-                               xev->root_y,
-                               TRUE);
+              if (meta_grab_op_is_moving (window->display->grab_op))
+                {
+                  if (window->tile_mode != META_TILE_NONE)
+                    meta_window_tile (window);
+                  else if (xev->root == window->screen->xroot)
+                    update_move (window,
+                                 xev->mods.effective & ShiftMask,
+                                 xev->root_x,
+                                 xev->root_y);
+                }
+              else if (meta_grab_op_is_resizing (window->display->grab_op))
+                {
+                  if (xev->root == window->screen->xroot)
+                    update_resize (window,
+                                   xev->mods.effective & ShiftMask,
+                                   xev->root_x,
+                                   xev->root_y,
+                                   TRUE);
 
-              /* If a tiled window has been dragged free with a
-               * mouse resize without snapping back to the tiled
-               * state, it will end up with an inconsistent tile
-               * mode on mouse release; cleaning the mode earlier
-               * would break the ability to snap back to the tiled
-               * state, so we wait until mouse release.
-               */
-              update_tile_mode (window);
+                  /* If a tiled window has been dragged free with a
+                   * mouse resize without snapping back to the tiled
+                   * state, it will end up with an inconsistent tile
+                   * mode on mouse release; cleaning the mode earlier
+                   * would break the ability to snap back to the tiled
+                   * state, so we wait until mouse release.
+                   */
+                  update_tile_mode (window);
+                }
             }
+          meta_display_end_grab_op (window->display, xev->time);
         }
-
-      meta_display_end_grab_op (window->display, xev->time);
       break;
 
     case XI_Motion:
@@ -10162,7 +10344,7 @@ warp_grab_pointer (MetaWindow          *window,
   /* We may not have done begin_grab_op yet, i.e. may not be in a grab
    */
 
-  meta_window_get_outer_rect (window, &rect);
+  meta_window_get_frame_rect (window, &rect);
 
   switch (grab_op)
     {
@@ -10501,7 +10683,7 @@ meta_window_set_demands_attention (MetaWindow *window)
     }
   else
     {
-      meta_window_get_outer_rect (window, &candidate_rect);
+      meta_window_get_frame_rect (window, &candidate_rect);
 
       /* The stack is sorted with the top windows first. */
 
@@ -10512,7 +10694,7 @@ meta_window_set_demands_attention (MetaWindow *window)
 
           if (meta_window_located_on_workspace (other_window, window->workspace))
             {
-              meta_window_get_outer_rect (other_window, &other_rect);
+              meta_window_get_frame_rect (other_window, &other_rect);
 
               if (meta_rectangle_overlap (&candidate_rect, &other_rect))
                 {
@@ -11216,8 +11398,8 @@ meta_window_compute_tile_match (MetaWindow *window)
           bottommost = match;
         }
 
-      meta_window_get_outer_rect (bottommost, &bottommost_rect);
-      meta_window_get_outer_rect (topmost, &topmost_rect);
+      meta_window_get_frame_rect (bottommost, &bottommost_rect);
+      meta_window_get_frame_rect (topmost, &topmost_rect);
       /*
        * If there's a window stacked in between which is partially visible
        * behind the topmost tile we don't consider the tiles to match.
@@ -11231,7 +11413,7 @@ meta_window_compute_tile_match (MetaWindow *window)
               meta_window_get_workspace (above) != meta_window_get_workspace (window))
             continue;
 
-          meta_window_get_outer_rect (above, &above_rect);
+          meta_window_get_frame_rect (above, &above_rect);
 
           if (meta_rectangle_overlap (&above_rect, &bottommost_rect) &&
               meta_rectangle_overlap (&above_rect, &topmost_rect))
@@ -11247,3 +11429,19 @@ meta_window_can_close (MetaWindow *window)
 {
   return window->has_close_func;
 }
+
+Window
+meta_window_get_toplevel_xwindow (MetaWindow *window)
+{
+  return window->frame ? window->frame->xwindow : window->xwindow;
+}
+
+void
+meta_window_set_opacity (MetaWindow *window,
+                         guint       opacity)
+{
+  window->opacity = opacity;
+
+  if (window->display->compositor)
+    meta_compositor_window_opacity_changed (window->display->compositor, window);
+}

src/meta/atomnames.h

@@ -81,6 +81,7 @@ item(TIMESTAMP)
 item(VERSION)
 item(ATOM_PAIR)
 item(BACKLIGHT)
+item(hotplug_mode_update)
 
 /* Oddities: These are used, and we need atoms for them,
  * but when we need all _NET_WM hints (i.e. when we're making
@@ -178,6 +179,7 @@ item(_NET_WM_BYPASS_COMPOSITOR)
 item(_NET_WM_OPAQUE_REGION)
 item(_NET_WM_FRAME_DRAWN)
 item(_NET_WM_FRAME_TIMINGS)
+item(_NET_WM_WINDOW_OPACITY)
 
 #if 0
 /* We apparently never use: */

src/meta/compositor.h

@@ -66,6 +66,8 @@ void meta_compositor_unmanage_screen (MetaCompositor *compositor,
 
 void meta_compositor_window_shape_changed (MetaCompositor *compositor,
                                            MetaWindow     *window);
+void meta_compositor_window_opacity_changed (MetaCompositor *compositor,
+                                             MetaWindow     *window);
 
 gboolean meta_compositor_process_event (MetaCompositor *compositor,
                                         XEvent         *event,
@@ -75,11 +77,10 @@ gboolean meta_compositor_filter_keybinding (MetaCompositor *compositor,
                                             MetaScreen     *screen,
                                             MetaKeyBinding *binding);
 
-void meta_compositor_add_window    (MetaCompositor *compositor,
-                                    MetaWindow     *window);
-void meta_compositor_remove_window (MetaCompositor *compositor,
-                                    MetaWindow     *window);
-
+void meta_compositor_add_window        (MetaCompositor      *compositor,
+                                        MetaWindow          *window);
+void meta_compositor_remove_window     (MetaCompositor      *compositor,
+                                        MetaWindow          *window);
 void meta_compositor_show_window       (MetaCompositor      *compositor,
                                         MetaWindow          *window,
                                         MetaCompEffect       effect);
@@ -101,10 +102,6 @@ void meta_compositor_unmaximize_window (MetaCompositor      *compositor,
                                         MetaRectangle       *old_rect,
                                         MetaRectangle       *new_rect);
 
-void meta_compositor_window_mapped        (MetaCompositor *compositor,
-                                           MetaWindow     *window);
-void meta_compositor_window_unmapped      (MetaCompositor *compositor,
-                                           MetaWindow     *window);
 void meta_compositor_sync_window_geometry (MetaCompositor *compositor,
                                            MetaWindow     *window,
                                            gboolean        did_placement);

src/meta/keybindings.h

@@ -35,13 +35,6 @@ gboolean meta_keybindings_set_custom_handler (const gchar        *name,
 					      gpointer            user_data,
 					      GDestroyNotify      free_data);
 
-void meta_keybindings_switch_window (MetaDisplay    *display,
-				     MetaScreen     *screen,
-				     MetaWindow     *event_window,
-                                     XIDeviceEvent  *event,
-				     MetaKeyBinding *binding);
-
-
 void     meta_screen_ungrab_all_keys (MetaScreen *screen, guint32 timestamp);
 gboolean meta_screen_grab_all_keys (MetaScreen *screen, guint32 timestamp);
 #endif

src/meta/meta-shaped-texture.h

@@ -83,6 +83,8 @@ CoglTexture * meta_shaped_texture_get_texture (MetaShapedTexture *stex);
 
 void meta_shaped_texture_set_mask_texture (MetaShapedTexture *stex,
                                            CoglTexture       *mask_texture);
+void meta_shaped_texture_set_input_shape_region (MetaShapedTexture *stex,
+                                                 cairo_region_t    *shape_region);
 
 void meta_shaped_texture_set_clip_region (MetaShapedTexture *stex,
 					  cairo_region_t    *clip_region);

src/meta/prefs.h

@@ -258,6 +258,7 @@ void     meta_prefs_set_ignore_request_hide_titlebar (gboolean whether);
  * @META_KEYBINDING_ACTION_MOVE_TO_SIDE_W: FILLME 
  * @META_KEYBINDING_ACTION_MOVE_TO_CENTER: FILLME 
  * @META_KEYBINDING_ACTION_OVERLAY_KEY: FILLME 
+ * @META_KEYBINDING_ACTION_ALWAYS_ON_TOP: FILLME 
  * @META_KEYBINDING_ACTION_LAST: FILLME 
  */
 /* XXX FIXME This should be x-macroed, but isn't yet because it would be
@@ -351,6 +352,7 @@ typedef enum _MetaKeyBindingAction
   META_KEYBINDING_ACTION_MOVE_TO_CENTER,
   META_KEYBINDING_ACTION_OVERLAY_KEY,
   META_KEYBINDING_ACTION_ISO_NEXT_GROUP,
+  META_KEYBINDING_ACTION_ALWAYS_ON_TOP,
 
   META_KEYBINDING_ACTION_LAST
 } MetaKeyBindingAction;
@@ -419,13 +421,13 @@ typedef struct
    */
   GSList *bindings;
 
-  /** for keybindings that can have shift or not like Alt+Tab */
+  /* for keybindings that can have shift or not like Alt+Tab */
   gboolean      add_shift:1;
 
-  /** for keybindings that apply only to a window */
+  /* for keybindings that apply only to a window */
   gboolean      per_window:1;
 
-  /** for keybindings not added with meta_display_add_keybinding() */
+  /* for keybindings not added with meta_display_add_keybinding() */
   gboolean      builtin:1;
 } MetaKeyPref;
 

src/meta/window.h

@@ -100,7 +100,17 @@ gboolean meta_window_is_override_redirect (MetaWindow *window);
 gboolean meta_window_is_skip_taskbar (MetaWindow *window);
 MetaRectangle *meta_window_get_rect (MetaWindow *window);
 void meta_window_get_input_rect (const MetaWindow *window, MetaRectangle *rect);
-void meta_window_get_outer_rect (const MetaWindow *window, MetaRectangle *rect);
+
+void meta_window_get_frame_rect (const MetaWindow *window, MetaRectangle *rect);
+void meta_window_get_outer_rect (const MetaWindow *window, MetaRectangle *rect) G_GNUC_DEPRECATED;
+
+void meta_window_client_rect_to_frame_rect (MetaWindow    *window,
+                                            MetaRectangle *client_rect,
+                                            MetaRectangle *frame_rect);
+void meta_window_frame_rect_to_client_rect (MetaWindow    *window,
+                                            MetaRectangle *frame_rect,
+                                            MetaRectangle *client_rect);
+
 MetaScreen *meta_window_get_screen (MetaWindow *window);
 MetaDisplay *meta_window_get_display (MetaWindow *window);
 Window meta_window_get_xwindow (MetaWindow *window);
@@ -140,8 +150,7 @@ void meta_window_unset_demands_attention (MetaWindow *window);
 const char* meta_window_get_startup_id (MetaWindow *window);
 void meta_window_change_workspace_by_index (MetaWindow *window,
                                             gint        space_index,
-                                            gboolean    append,
-                                            guint32     timestamp);
+                                            gboolean    append);
 void meta_window_change_workspace          (MetaWindow  *window,
                                             MetaWorkspace *workspace);
 GObject *meta_window_get_compositor_private (MetaWindow *window);