wayland: Use an event filter instead of the captured event signal

In order to see all Clutter events, Mutter was previously installing a
signal handler on the ‘captured-event’ signal on the stage and
additionally using a signal emission hook to cope with grabs. This
changes it to use the new clutter_event_add_filter API so that we can
avoid the signal emission hook hack.

.gitignore

@@ -48,10 +48,11 @@ po/*.pot
 50-metacity-key.xml
 libmutter-wayland.pc
 mutter-wayland
-mutter-theme-viewer
-mutter-wayland.desktop
+mutter-launch
 org.gnome.mutter.gschema.valid
 org.gnome.mutter.gschema.xml
+org.gnome.mutter.wayland.gschema.valid
+org.gnome.mutter.wayland.gschema.xml
 testasyncgetprop
 testboxes
 testgradient
@@ -77,6 +78,12 @@ src/stamp-mutter-marshal.h
 src/meta-dbus-xrandr.[ch]
 src/meta-dbus-idle-monitor.[ch]
 src/mutter-plugins.pc
+src/wayland/gtk-shell-protocol.c
+src/wayland/gtk-shell-client-protocol.h
+src/wayland/gtk-shell-server-protocol.h
+src/wayland/xserver-protocol.c
+src/wayland/xserver-client-protocol.h
+src/wayland/xserver-server-protocol.h
 doc/reference/*.args
 doc/reference/*.bak
 doc/reference/*.hierarchy

configure.ac

@@ -2,7 +2,7 @@ AC_PREREQ(2.50)
 
 m4_define([mutter_major_version], [3])
 m4_define([mutter_minor_version], [9])
-m4_define([mutter_micro_version], [90])
+m4_define([mutter_micro_version], [91])
 
 m4_define([mutter_version],
           [mutter_major_version.mutter_minor_version.mutter_micro_version])
@@ -79,6 +79,8 @@ MUTTER_PC_MODULES="
    xcomposite >= 0.2 xfixes xrender xdamage xi >= 1.6.0
    $CLUTTER_PACKAGE >= 1.14.3
    cogl-1.0 >= 1.13.3
+   upower-glib > 0.9.11
+   gnome-desktop-3.0
 "
 
 GLIB_GSETTINGS
@@ -137,6 +139,12 @@ AM_GLIB_GNU_GETTEXT
 ## here we get the flags we'll actually use
 # GRegex requires Glib-2.14.0
 PKG_CHECK_MODULES(ALL, glib-2.0 >= 2.14.0)
+PKG_CHECK_MODULES(MUTTER_LAUNCH, libdrm libsystemd-login)
+
+saved_LIBS="$LIBS"
+LIBS="$LIBS $MUTTER_LAUNCH"
+AC_CHECK_FUNCS([sd_session_get_vt])
+LIBS="$saved_LIBS"
 
 # Unconditionally use this dir to avoid a circular dep with gnomecc
 GNOME_KEYBINDINGS_KEYSDIR="${datadir}/gnome-control-center/keybindings"
@@ -224,7 +232,7 @@ AS_IF([test "x$WAYLAND_SCANNER" = "xno"],
 AC_SUBST([WAYLAND_SCANNER])
 AC_SUBST(XWAYLAND_PATH)
 
-MUTTER_PC_MODULES="$MUTTER_PC_MODULES wayland-server"
+MUTTER_PC_MODULES="$MUTTER_PC_MODULES wayland-server libdrm"
 PKG_CHECK_MODULES(MUTTER, $MUTTER_PC_MODULES)
 
 PKG_CHECK_EXISTS([xi >= 1.6.99.1],

po/POTFILES.in

@@ -12,6 +12,7 @@ src/core/display.c
 src/core/errors.c
 src/core/keybindings.c
 src/core/main.c
+src/core/monitor.c
 src/core/mutter.c
 src/core/prefs.c
 src/core/screen.c
@@ -20,15 +21,12 @@ src/core/util.c
 src/core/window.c
 src/core/window-props.c
 src/core/xprops.c
-src/mutter.desktop.in
-src/mutter-wm.desktop.in
+src/mutter-wayland.desktop.in
 src/org.gnome.mutter.gschema.xml.in
-src/tools/mutter-message.c
+src/org.gnome.mutter.wayland.gschema.xml.in
 src/ui/frames.c
 src/ui/menu.c
 src/ui/metaaccellabel.c
 src/ui/resizepopup.c
 src/ui/theme.c
 src/ui/theme-parser.c
-src/ui/theme-viewer.c
-

protocol/gtk-shell.xml

@@ -0,0 +1,30 @@
+<protocol name="gtk">
+
+  <interface name="gtk_shell" version="1">
+    <enum name="capability">
+      <entry name="global_app_menu" value="1"/>
+      <entry name="global_menu_bar" value="2"/>
+    </enum>
+
+    <event name="capabilities">
+      <arg name="capabilities" type="uint"/>
+    </event>
+
+    <request name="get_gtk_surface">
+      <arg name="gtk_surface" type="new_id" interface="gtk_surface"/>
+      <arg name="surface" type="object" interface="wl_surface"/>
+    </request>
+  </interface>
+
+  <interface name="gtk_surface" version="1">
+    <request name="set_dbus_properties">
+      <arg name="application_id" type="string" allow-null="true"/>
+      <arg name="app_menu_path" type="string" allow-null="true"/>
+      <arg name="menubar_path" type="string" allow-null="true"/>
+      <arg name="window_object_path" type="string" allow-null="true"/>
+      <arg name="application_object_path" type="string" allow-null="true"/>
+      <arg name="unique_bus_name" type="string" allow-null="true"/>
+    </request>
+  </interface>
+
+</protocol>

src/Makefile.am

@@ -37,8 +37,12 @@ INCLUDES += \
 
 mutter_built_sources = \
 	$(dbus_idle_built_sources)		\
+	$(dbus_xrandr_built_sources)		\
 	mutter-enum-types.h 			\
 	mutter-enum-types.c			\
+	wayland/gtk-shell-protocol.c		\
+	wayland/gtk-shell-server-protocol.h	\
+	wayland/gtk-shell-client-protocol.h	\
 	wayland/xserver-protocol.c		\
 	wayland/xserver-server-protocol.h	\
 	wayland/xserver-client-protocol.h
@@ -105,6 +109,8 @@ libmutter_wayland_la_SOURCES =			\
 	ui/draw-workspace.h			\
 	core/edge-resistance.c			\
 	core/edge-resistance.h			\
+	core/edid-parse.c			\
+	core/edid.h				\
 	core/errors.c				\
 	meta/errors.h				\
 	core/frame.c				\
@@ -125,6 +131,12 @@ libmutter_wayland_la_SOURCES =			\
 	core/meta-cursor-tracker-private.h	\
 	core/meta-idle-monitor.c		\
 	core/meta-idle-monitor-private.h	\
+	core/meta-xrandr-shared.h		\
+	core/monitor.c				\
+	core/monitor-config.c			\
+	core/monitor-kms.c			\
+	core/monitor-private.h			\
+	core/monitor-xrandr.c			\
 	core/mutter-Xatomtype.h			\
 	core/place.c				\
 	core/place.h				\
@@ -187,7 +199,12 @@ libmutter_wayland_la_SOURCES +=			\
 	wayland/meta-wayland-seat.c		\
 	wayland/meta-wayland-seat.h		\
 	wayland/meta-wayland-stage.h		\
-	wayland/meta-wayland-stage.c
+	wayland/meta-wayland-stage.c		\
+	wayland/meta-wayland-surface.c		\
+	wayland/meta-wayland-surface.h		\
+	wayland/meta-wayland-types.h		\
+	wayland/meta-weston-launch.c		\
+	wayland/meta-weston-launch.h
 
 libmutter_wayland_la_LDFLAGS = -no-undefined
 libmutter_wayland_la_LIBADD  = $(MUTTER_LIBS)
@@ -239,6 +256,17 @@ bin_PROGRAMS=mutter-wayland
 mutter_wayland_SOURCES = core/mutter.c
 mutter_wayland_LDADD = $(MUTTER_LIBS) libmutter-wayland.la
 
+bin_PROGRAMS+=mutter-launch
+
+mutter_launch_SOURCES = wayland/weston-launch.c wayland/weston-launch.h
+
+mutter_launch_CFLAGS = $(MUTTER_LAUNCH_CFLAGS) -DLIBDIR=\"$(libdir)\"
+mutter_launch_LDFLAGS = $(MUTTER_LAUNCH_LIBS) -lpam
+
+install-exec-hook:
+	-chown root $(DESTDIR)$(bindir)/mutter-launch
+	-chmod u+s $(DESTDIR)$(bindir)/mutter-launch
+
 if HAVE_INTROSPECTION
 include $(INTROSPECTION_MAKEFILE)
 
@@ -298,7 +326,7 @@ xml_DATA     = $(xml_in_files:.xml.in=.xml)
 
 dbus_idle_built_sources = meta-dbus-idle-monitor.c meta-dbus-idle-monitor.h
 
-gsettings_SCHEMAS = org.gnome.mutter.gschema.xml
+gsettings_SCHEMAS = org.gnome.mutter.gschema.xml org.gnome.mutter.wayland.gschema.xml
 @INTLTOOL_XML_NOMERGE_RULE@
 @GSETTINGS_RULES@
 
@@ -309,6 +337,7 @@ CLEANFILES =					\
 	mutter-wayland.desktop			\
 	mutter-wm.desktop			\
 	org.gnome.mutter.gschema.xml		\
+	org.gnome.mutter.wayland.gschema.xml	\
 	$(xml_DATA)				\
 	$(mutter_built_sources)			\
 	$(typelib_DATA)				\
@@ -325,10 +354,12 @@ EXTRA_DIST=$(desktopfiles_files) 	\
 	$(wmproperties_in_files)	\
 	$(xml_in_files)			\
 	org.gnome.mutter.gschema.xml.in \
+	org.gnome.mutter.wayland.gschema.xml.in \
 	mutter-schemas.convert \
 	libmutter-wayland.pc.in \
 	mutter-enum-types.h.in \
-	mutter-enum-types.c.in
+	mutter-enum-types.c.in \
+	xrandr.xml idle-monitor.xml
 
 BUILT_SOURCES = $(mutter_built_sources)
 MUTTER_STAMP_FILES = stamp-mutter-enum-types.h
@@ -353,6 +384,15 @@ mutter-enum-types.c: stamp-mutter-enum-types.h mutter-enum-types.c.in
 	cp xgen-tetc mutter-enum-types.c && \
 	rm -f xgen-tetc
 
+dbus_xrandr_built_sources = meta-dbus-xrandr.c meta-dbus-xrandr.h
+
+$(dbus_xrandr_built_sources) : Makefile.am xrandr.xml
+	$(AM_V_GEN)gdbus-codegen							\
+		--interface-prefix org.gnome.Mutter					\
+		--c-namespace MetaDBus							\
+		--generate-c-code meta-dbus-xrandr					\
+		$(srcdir)/xrandr.xml
+
 dbus_idle_built_sources = meta-dbus-idle-monitor.c meta-dbus-idle-monitor.h
 
 $(dbus_idle_built_sources) : Makefile.am idle-monitor.xml

src/compositor/compositor.c

@@ -85,6 +85,8 @@
 #include "window-private.h" /* to check window->hidden */
 #include "display-private.h" /* for meta_display_lookup_x_window() */
 #include "meta-wayland-private.h"
+#include "meta-wayland-pointer.h"
+#include "meta-wayland-keyboard.h"
 #include <X11/extensions/shape.h>
 #include <X11/extensions/Xcomposite.h>
 
@@ -424,34 +426,20 @@ meta_stage_is_focused (MetaScreen *screen)
   return (screen->display->focus_type == META_FOCUS_STAGE);
 }
 
-gboolean
-meta_begin_modal_for_plugin (MetaScreen       *screen,
-                             MetaPlugin       *plugin,
-                             MetaModalOptions  options,
-                             guint32           timestamp)
+static gboolean
+begin_modal_x11 (MetaScreen       *screen,
+                 MetaPlugin       *plugin,
+                 MetaModalOptions  options,
+                 guint32           timestamp)
 {
-  /* To some extent this duplicates code in meta_display_begin_grab_op(), but there
-   * are significant differences in how we handle grabs that make it difficult to
-   * merge the two.
-   */
-  MetaDisplay    *display    = meta_screen_get_display (screen);
-  Display        *xdpy       = meta_display_get_xdisplay (display);
-  MetaCompositor *compositor = display->compositor;
-  ClutterStage *stage;
-  Window grab_window;
-  Cursor cursor = None;
-  gboolean pointer_grabbed = FALSE;
-  gboolean keyboard_grabbed = FALSE;
-  int result;
-
-  stage = CLUTTER_STAGE (meta_get_stage_for_screen (screen));
-  if (!stage)
-    return FALSE;
-
-  grab_window = clutter_x11_get_stage_window (stage);
-
-  if (compositor->modal_plugin != NULL || display->grab_op != META_GRAB_OP_NONE)
-    return FALSE;
+  MetaDisplay    *display     = meta_screen_get_display (screen);
+  Display        *xdpy        = meta_display_get_xdisplay (display);
+  MetaCompScreen *info        = meta_screen_get_compositor_data (screen);
+  Window          grab_window = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
+  Cursor          cursor      = None;
+  int             result;
+  gboolean        pointer_grabbed = FALSE;
+  gboolean        keyboard_grabbed = FALSE;
 
   if ((options & META_MODAL_POINTER_ALREADY_GRABBED) == 0)
     {
@@ -501,14 +489,6 @@ meta_begin_modal_for_plugin (MetaScreen       *screen,
       keyboard_grabbed = TRUE;
     }
 
-  display->grab_op = META_GRAB_OP_COMPOSITOR;
-  display->grab_window = NULL;
-  display->grab_screen = screen;
-  display->grab_have_pointer = TRUE;
-  display->grab_have_keyboard = TRUE;
-
-  compositor->modal_plugin = plugin;
-
   return TRUE;
 
  fail:
@@ -520,6 +500,80 @@ meta_begin_modal_for_plugin (MetaScreen       *screen,
   return FALSE;
 }
 
+static gboolean
+begin_modal_wayland (MetaScreen       *screen,
+                     MetaPlugin       *plugin,
+                     MetaModalOptions  options,
+                     guint32           timestamp)
+{
+  MetaWaylandCompositor *compositor;
+  gboolean pointer_grabbed = FALSE;
+  gboolean keyboard_grabbed = FALSE;
+
+  compositor = meta_wayland_compositor_get_default ();
+
+  if ((options & META_MODAL_POINTER_ALREADY_GRABBED) == 0)
+    {
+      if (!meta_wayland_pointer_begin_modal (&compositor->seat->pointer))
+        goto fail;
+
+      pointer_grabbed = TRUE;
+    }
+  if ((options & META_MODAL_KEYBOARD_ALREADY_GRABBED) == 0)
+    {
+      if (!meta_wayland_keyboard_begin_modal (&compositor->seat->keyboard,
+                                              timestamp))
+        goto fail;
+
+      keyboard_grabbed = TRUE;
+    }
+
+  return TRUE;
+
+ fail:
+  if (pointer_grabbed)
+    meta_wayland_pointer_end_modal (&compositor->seat->pointer);
+  if (keyboard_grabbed)
+    meta_wayland_keyboard_end_modal (&compositor->seat->keyboard, timestamp);
+
+  return FALSE;
+}
+
+gboolean
+meta_begin_modal_for_plugin (MetaScreen       *screen,
+                             MetaPlugin       *plugin,
+                             MetaModalOptions  options,
+                             guint32           timestamp)
+{
+  /* To some extent this duplicates code in meta_display_begin_grab_op(), but there
+   * are significant differences in how we handle grabs that make it difficult to
+   * merge the two.
+   */
+  MetaDisplay    *display    = meta_screen_get_display (screen);
+  MetaCompositor *compositor = display->compositor;
+  gboolean ok;
+
+  if (compositor->modal_plugin != NULL || display->grab_op != META_GRAB_OP_NONE)
+    return FALSE;
+
+  if (meta_is_wayland_compositor ())
+    ok = begin_modal_wayland (screen, plugin, options, timestamp);
+  else
+    ok = begin_modal_x11 (screen, plugin, options, timestamp);
+  if (!ok)
+    return FALSE;
+
+  display->grab_op = META_GRAB_OP_COMPOSITOR;
+  display->grab_window = NULL;
+  display->grab_screen = screen;
+  display->grab_have_pointer = TRUE;
+  display->grab_have_keyboard = TRUE;
+
+  compositor->modal_plugin = plugin;
+
+  return TRUE;
+}
+
 void
 meta_end_modal_for_plugin (MetaScreen     *screen,
                            MetaPlugin     *plugin,
@@ -531,8 +585,19 @@ meta_end_modal_for_plugin (MetaScreen     *screen,
 
   g_return_if_fail (compositor->modal_plugin == plugin);
 
-  XIUngrabDevice (xdpy, META_VIRTUAL_CORE_POINTER_ID, timestamp);
-  XIUngrabDevice (xdpy, META_VIRTUAL_CORE_KEYBOARD_ID, timestamp);
+  if (meta_is_wayland_compositor ())
+    {
+      MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
+
+      meta_wayland_pointer_end_modal (&compositor->seat->pointer);
+      meta_wayland_keyboard_end_modal (&compositor->seat->keyboard,
+                                       timestamp);
+    }
+  else
+    {
+      XIUngrabDevice (xdpy, META_VIRTUAL_CORE_POINTER_ID, timestamp);
+      XIUngrabDevice (xdpy, META_VIRTUAL_CORE_KEYBOARD_ID, timestamp);
+    }
 
   display->grab_op = META_GRAB_OP_NONE;
   display->grab_window = NULL;
@@ -629,7 +694,7 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
   MetaCompScreen *info;
   MetaDisplay    *display       = meta_screen_get_display (screen);
   Display        *xdisplay      = meta_display_get_xdisplay (display);
-  Window          xwin;
+  Window          xwin = None;
   gint            width, height;
   MetaWaylandCompositor *wayland_compositor;
 
@@ -668,6 +733,9 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
     {
       wayland_compositor = meta_wayland_compositor_get_default ();
       info->stage = wayland_compositor->stage;
+
+      meta_screen_get_size (screen, &width, &height);
+      clutter_actor_set_size (info->stage, width, height);
     }
   else
     {
@@ -927,8 +995,8 @@ is_grabbed_event (MetaDisplay *display,
 }
 
 void
-meta_compositor_window_x11_shape_changed (MetaCompositor *compositor,
-                                          MetaWindow     *window)
+meta_compositor_window_shape_changed (MetaCompositor *compositor,
+                                      MetaWindow     *window)
 {
   MetaWindowActor *window_actor;
   window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
@@ -1416,18 +1484,25 @@ meta_compositor_sync_screen_size (MetaCompositor  *compositor,
 				  guint		   width,
 				  guint		   height)
 {
+  MetaDisplay    *display = meta_screen_get_display (screen);
+  MetaCompScreen *info    = meta_screen_get_compositor_data (screen);
+
   if (meta_is_wayland_compositor ())
     {
-      /* It's not clear at the moment how we will be dealing with screen
-       * resizing as a Wayland compositor so for now just abort if we
-       * hit this code. */
-      g_critical ("Unexpected call to meta_compositor_sync_screen_size() "
-                  "when running as a wayland compositor");
+      /* FIXME: when we support a sliced stage, this is the place to do it
+         But! This is not the place to apply KMS config, here we only
+         notify Clutter/Cogl/GL that the framebuffer sizes changed.
+
+         And because for now clutter does not do sliced, we use one
+         framebuffer the size of the whole screen, and when running on
+         bare metal MetaMonitorManager will do the necessary tricks to
+         show the right portions on the right screens.
+      */
+
+      clutter_actor_set_size (info->stage, width, height);
     }
   else
     {
-      MetaDisplay    *display = meta_screen_get_display (screen);
-      MetaCompScreen *info    = meta_screen_get_compositor_data (screen);
       Display        *xdisplay;
       Window          xwin;
 
@@ -1438,11 +1513,11 @@ meta_compositor_sync_screen_size (MetaCompositor  *compositor,
       xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
 
       XResizeWindow (xdisplay, xwin, width, height);
-
-      meta_verbose ("Changed size for stage on screen %d to %dx%d\n",
-                    meta_screen_get_screen_number (screen),
-                    width, height);
     }
+
+  meta_verbose ("Changed size for stage on screen %d to %dx%d\n",
+                meta_screen_get_screen_number (screen),
+                width, height);
 }
 
 static void

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

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

src/compositor/meta-background-actor.c

@@ -44,7 +44,7 @@
 
 struct _MetaBackgroundActorPrivate
 {
-  cairo_region_t *visible_region;
+  cairo_region_t *clip_region;
 };
 
 G_DEFINE_TYPE (MetaBackgroundActor, meta_background_actor, CLUTTER_TYPE_ACTOR);
@@ -54,7 +54,7 @@ meta_background_actor_dispose (GObject *object)
 {
   MetaBackgroundActor *self = META_BACKGROUND_ACTOR (object);
 
-  meta_background_actor_set_visible_region (self, NULL);
+  meta_background_actor_set_clip_region (self, NULL);
 
   G_OBJECT_CLASS (meta_background_actor_parent_class)->dispose (object);
 }
@@ -167,17 +167,17 @@ meta_background_actor_new (void)
 }
 
 /**
- * meta_background_actor_set_visible_region:
+ * meta_background_actor_set_clip_region:
  * @self: a #MetaBackgroundActor
- * @visible_region: (allow-none): the area of the actor (in allocate-relative
+ * @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_visible_region (MetaBackgroundActor *self,
-                                          cairo_region_t      *visible_region)
+meta_background_actor_set_clip_region (MetaBackgroundActor *self,
+                                       cairo_region_t      *clip_region)
 {
   MetaBackgroundActorPrivate *priv;
 
@@ -185,16 +185,16 @@ meta_background_actor_set_visible_region (MetaBackgroundActor *self,
 
   priv = self->priv;
 
-  g_clear_pointer (&priv->visible_region,
+  g_clear_pointer (&priv->clip_region,
                    (GDestroyNotify)
                    cairo_region_destroy);
 
-  if (visible_region)
-    priv->visible_region = cairo_region_copy (visible_region);
+  if (clip_region)
+    priv->clip_region = cairo_region_copy (clip_region);
 }
 
 /**
- * meta_background_actor_get_visible_region:
+ * meta_background_actor_get_clip_region:
  * @self: a #MetaBackgroundActor
  *
  * Return value (transfer full): a #cairo_region_t that represents the part of
@@ -202,16 +202,16 @@ meta_background_actor_set_visible_region (MetaBackgroundActor *self,
  * #MetaWindowActor objects.
  */
 cairo_region_t *
-meta_background_actor_get_visible_region (MetaBackgroundActor *self)
+meta_background_actor_get_clip_region (MetaBackgroundActor *self)
 {
   MetaBackgroundActorPrivate *priv = self->priv;
   ClutterActorBox content_box;
   cairo_rectangle_int_t content_area = { 0 };
-  cairo_region_t *visible_region;
+  cairo_region_t *clip_region;
 
   g_return_val_if_fail (META_IS_BACKGROUND_ACTOR (self), NULL);
 
-  if (!priv->visible_region)
+  if (!priv->clip_region)
       return NULL;
 
   clutter_actor_get_content_box (CLUTTER_ACTOR (self), &content_box);
@@ -221,8 +221,8 @@ meta_background_actor_get_visible_region (MetaBackgroundActor *self)
   content_area.width = content_box.x2 - content_box.x1;
   content_area.height = content_box.y2 - content_box.y1;
 
-  visible_region = cairo_region_create_rectangle (&content_area);
-  cairo_region_intersect (visible_region, priv->visible_region);
+  clip_region = cairo_region_create_rectangle (&content_area);
+  cairo_region_intersect (clip_region, priv->clip_region);
 
-  return visible_region;
+  return clip_region;
 }

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

@@ -6,6 +6,6 @@
 #include <meta/screen.h>
 #include <meta/meta-background-group.h>
 
-void meta_background_group_set_visible_region  (MetaBackgroundGroup *self,
-                                                cairo_region_t      *visible_region);
+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

@@ -62,16 +62,16 @@ meta_background_group_init (MetaBackgroundGroup *self)
 }
 
 /**
- * meta_background_group_set_visible_region:
+ * meta_background_group_set_clip_region:
  * @self: a #MetaBackgroundGroup
- * @visible_region: (allow-none): the parts of the background to paint
+ * @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_visible_region (MetaBackgroundGroup *self,
-                                          cairo_region_t      *region)
+meta_background_group_set_clip_region (MetaBackgroundGroup *self,
+                                       cairo_region_t      *region)
 {
   GList *children, *l;
 
@@ -82,7 +82,7 @@ meta_background_group_set_visible_region (MetaBackgroundGroup *self,
 
       if (META_IS_BACKGROUND_ACTOR (actor))
         {
-          meta_background_actor_set_visible_region (META_BACKGROUND_ACTOR (actor), region);
+          meta_background_actor_set_clip_region (META_BACKGROUND_ACTOR (actor), region);
         }
       else if (META_IS_BACKGROUND_GROUP (actor))
         {
@@ -92,7 +92,7 @@ meta_background_group_set_visible_region (MetaBackgroundGroup *self,
             continue;
 
           cairo_region_translate (region, -x, -y);
-          meta_background_group_set_visible_region (META_BACKGROUND_GROUP (actor), region);
+          meta_background_group_set_clip_region (META_BACKGROUND_GROUP (actor), region);
           cairo_region_translate (region, x, y);
         }
     }

src/compositor/meta-background.c

@@ -412,13 +412,13 @@ meta_background_paint_content (ClutterContent   *content,
    */
   if (META_IS_BACKGROUND_ACTOR (actor))
     {
-      cairo_region_t *visible_region;
-      visible_region = meta_background_actor_get_visible_region (META_BACKGROUND_ACTOR (actor));
+      cairo_region_t *clip_region;
+      clip_region = meta_background_actor_get_clip_region (META_BACKGROUND_ACTOR (actor));
 
-      if (visible_region != NULL)
+      if (clip_region != NULL)
         {
-          cairo_region_intersect (paintable_region, visible_region);
-          cairo_region_destroy (visible_region);
+          cairo_region_intersect (paintable_region, clip_region);
+          cairo_region_destroy (clip_region);
         }
     }
 
@@ -1031,7 +1031,6 @@ meta_background_load_file_finish (MetaBackground  *self,
                                   GAsyncResult    *result,
                                   GError         **error)
 {
-  static CoglUserDataKey key;
   GTask *task;
   LoadFileTaskData *task_data;
   CoglTexture *texture;
@@ -1077,12 +1076,6 @@ meta_background_load_file_finish (MetaBackground  *self,
       goto out;
     }
 
-  cogl_object_set_user_data (COGL_OBJECT (texture),
-                             &key,
-                             g_object_ref (pixbuf),
-                             (CoglUserDataDestroyCallback)
-                             g_object_unref);
-
   ensure_pipeline (self);
   unset_texture (self);
   set_style (self, task_data->style);

src/compositor/meta-plugin-manager.c

@@ -85,12 +85,20 @@ meta_plugin_manager_load (const gchar       *plugin_name)
   g_free (path);
 }
 
+static void
+on_confirm_display_change (MetaMonitorManager *monitors,
+                           MetaPluginManager  *plugin_mgr)
+{
+  meta_plugin_manager_confirm_display_change (plugin_mgr);
+}
+
 MetaPluginManager *
 meta_plugin_manager_new (MetaScreen *screen)
 {
   MetaPluginManager *plugin_mgr;
   MetaPluginClass *klass;
   MetaPlugin *plugin;
+  MetaMonitorManager *monitors;
 
   plugin_mgr = g_new0 (MetaPluginManager, 1);
   plugin_mgr->screen = screen;
@@ -101,6 +109,10 @@ meta_plugin_manager_new (MetaScreen *screen)
   if (klass->start)
     klass->start (plugin);
 
+  monitors = meta_monitor_manager_get ();
+  g_signal_connect (monitors, "confirm-display-change",
+                    G_CALLBACK (on_confirm_display_change), plugin_mgr);
+
   return plugin_mgr;
 }
 
@@ -330,3 +342,15 @@ meta_plugin_manager_xevent_filter (MetaPluginManager *plugin_mgr,
 
   return clutter_x11_handle_event (xev) != CLUTTER_X11_FILTER_CONTINUE;
 }
+
+void
+meta_plugin_manager_confirm_display_change (MetaPluginManager *plugin_mgr)
+{
+  MetaPlugin *plugin = plugin_mgr->plugin;
+  MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
+
+  if (klass->confirm_display_change)
+    return klass->confirm_display_change (plugin);
+  else
+    return meta_plugin_complete_display_change (plugin, TRUE);
+}

src/compositor/meta-plugin-manager.h

@@ -73,4 +73,6 @@ gboolean meta_plugin_manager_filter_keybinding (MetaPluginManager  *mgr,
 gboolean meta_plugin_manager_xevent_filter (MetaPluginManager *mgr,
                                             XEvent            *xev);
 
+void     meta_plugin_manager_confirm_display_change (MetaPluginManager *mgr);
+
 #endif

src/compositor/meta-plugin.c

@@ -41,6 +41,7 @@
 
 #include "compositor-private.h"
 #include "meta-window-actor-private.h"
+#include "monitor-private.h"
 
 G_DEFINE_ABSTRACT_TYPE (MetaPlugin, meta_plugin, G_TYPE_OBJECT);
 
@@ -332,3 +333,13 @@ meta_plugin_get_screen (MetaPlugin *plugin)
 
   return priv->screen;
 }
+
+void
+meta_plugin_complete_display_change (MetaPlugin *plugin,
+                                     gboolean    ok)
+{
+  MetaMonitorManager *manager;
+
+  manager = meta_monitor_manager_get ();
+  meta_monitor_manager_confirm_configuration (manager, ok);
+}

src/compositor/meta-shaped-texture.c

@@ -91,11 +91,10 @@ struct _MetaShapedTexturePrivate
   CoglTexture *texture;
 
   CoglTexture *mask_texture;
-  CoglPipeline *pipeline;
-  CoglPipeline *pipeline_unshaped;
 
   cairo_region_t *clip_region;
   cairo_region_t *input_shape_region;
+  cairo_region_t *opaque_region;
 
   guint tex_width, tex_height;
 
@@ -145,8 +144,6 @@ meta_shaped_texture_dispose (GObject *object)
     meta_texture_tower_free (priv->paint_tower);
   priv->paint_tower = NULL;
 
-  g_clear_pointer (&priv->pipeline, cogl_object_unref);
-  g_clear_pointer (&priv->pipeline_unshaped, cogl_object_unref);
   g_clear_pointer (&priv->texture, cogl_object_unref);
 
   meta_shaped_texture_set_mask_texture (self, NULL);
@@ -155,6 +152,76 @@ meta_shaped_texture_dispose (GObject *object)
   G_OBJECT_CLASS (meta_shaped_texture_parent_class)->dispose (object);
 }
 
+static CoglPipeline *
+get_unmasked_pipeline (CoglContext *ctx)
+{
+  return cogl_pipeline_new (ctx);
+}
+
+static CoglPipeline *
+get_masked_pipeline (CoglContext *ctx)
+{
+  static CoglPipeline *template = NULL;
+  if (G_UNLIKELY (template == NULL))
+    {
+      template = cogl_pipeline_new (ctx);
+      cogl_pipeline_set_layer_combine (template, 1,
+                                       "RGBA = MODULATE (PREVIOUS, TEXTURE[A])",
+                                       NULL);
+    }
+
+  return cogl_pipeline_copy (template);
+}
+
+static CoglPipeline *
+get_unblended_pipeline (CoglContext *ctx)
+{
+  static CoglPipeline *template = NULL;
+  if (G_UNLIKELY (template == NULL))
+    {
+      CoglColor color;
+      template = cogl_pipeline_new (ctx);
+      cogl_color_init_from_4ub (&color, 255, 255, 255, 255);
+      cogl_pipeline_set_blend (template,
+                               "RGBA = ADD (SRC_COLOR, 0)",
+                               NULL);
+      cogl_pipeline_set_color (template, &color);
+    }
+
+  return cogl_pipeline_copy (template);
+}
+
+static void
+paint_clipped_rectangle (CoglFramebuffer       *fb,
+                         CoglPipeline          *pipeline,
+                         cairo_rectangle_int_t *rect,
+                         ClutterActorBox       *alloc)
+{
+  float coords[8];
+  float x1, y1, x2, y2;
+
+  x1 = rect->x;
+  y1 = rect->y;
+  x2 = rect->x + rect->width;
+  y2 = rect->y + rect->height;
+
+  coords[0] = rect->x / (alloc->x2 - alloc->x1);
+  coords[1] = rect->y / (alloc->y2 - alloc->y1);
+  coords[2] = (rect->x + rect->width) / (alloc->x2 - alloc->x1);
+  coords[3] = (rect->y + rect->height) / (alloc->y2 - alloc->y1);
+
+  coords[4] = coords[0];
+  coords[5] = coords[1];
+  coords[6] = coords[2];
+  coords[7] = coords[3];
+
+  cogl_framebuffer_draw_multitextured_rectangle (fb, pipeline,
+                                                 x1, y1, x2, y2,
+                                                 &coords[0], 8);
+
+}
+
+
 static void
 set_cogl_texture (MetaShapedTexture *stex,
                   CoglTexture       *cogl_tex)
@@ -169,13 +236,7 @@ set_cogl_texture (MetaShapedTexture *stex,
   if (priv->texture)
     cogl_object_unref (priv->texture);
 
-  priv->texture = cogl_tex;
-
-  if (priv->pipeline != NULL)
-    cogl_pipeline_set_layer_texture (priv->pipeline, 0, COGL_TEXTURE (cogl_tex));
-
-  if (priv->pipeline_unshaped != NULL)
-    cogl_pipeline_set_layer_texture (priv->pipeline_unshaped, 0, COGL_TEXTURE (cogl_tex));
+  priv->texture = cogl_object_ref (cogl_tex);
 
   if (cogl_tex != NULL)
     {
@@ -210,14 +271,14 @@ meta_shaped_texture_paint (ClutterActor *actor)
 {
   MetaShapedTexture *stex = (MetaShapedTexture *) actor;
   MetaShapedTexturePrivate *priv = stex->priv;
-  CoglTexture *paint_tex;
   guint tex_width, tex_height;
+  guchar opacity;
+  CoglContext *ctx;
+  CoglFramebuffer *fb;
+  CoglPipeline *pipeline = NULL;
+  CoglTexture *paint_tex;
   ClutterActorBox alloc;
-
-  static CoglPipeline *pipeline_template = NULL;
-  static CoglPipeline *pipeline_unshaped_template = NULL;
-
-  CoglPipeline *pipeline;
+  cairo_region_t *blended_region = NULL;
 
   if (priv->clip_region && cairo_region_is_empty (priv->clip_region))
     return;
@@ -254,38 +315,74 @@ meta_shaped_texture_paint (ClutterActor *actor)
   if (tex_width == 0 || tex_height == 0) /* no contents yet */
     return;
 
+  ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
+  fb = cogl_get_draw_framebuffer ();
+
+  opacity = clutter_actor_get_paint_opacity (actor);
+  clutter_actor_get_allocation_box (actor, &alloc);
+
+  if (priv->opaque_region != NULL && opacity == 255)
+    {
+      CoglPipeline *opaque_pipeline;
+      cairo_region_t *region;
+      int n_rects;
+      int i;
+
+      if (priv->clip_region != NULL)
+        {
+          region = cairo_region_copy (priv->clip_region);
+          cairo_region_intersect (region, priv->opaque_region);
+        }
+      else
+        {
+          region = cairo_region_reference (priv->opaque_region);
+        }
+
+      if (cairo_region_is_empty (region))
+        goto paint_blended;
+
+      opaque_pipeline = get_unblended_pipeline (ctx);
+      cogl_pipeline_set_layer_texture (opaque_pipeline, 0, paint_tex);
+
+      n_rects = cairo_region_num_rectangles (region);
+      for (i = 0; i < n_rects; i++)
+        {
+          cairo_rectangle_int_t rect;
+          cairo_region_get_rectangle (region, i, &rect);
+          paint_clipped_rectangle (fb, opaque_pipeline, &rect, &alloc);
+        }
+
+      cogl_object_unref (opaque_pipeline);
+
+      if (priv->clip_region != NULL)
+        {
+          blended_region = cairo_region_copy (priv->clip_region);
+        }
+      else
+        {
+          cairo_rectangle_int_t rect = { 0, 0, tex_width, tex_height };
+          blended_region = cairo_region_create_rectangle (&rect);
+        }
+
+      cairo_region_subtract (blended_region, priv->opaque_region);
+
+    paint_blended:
+      cairo_region_destroy (region);
+    }
+
+  if (blended_region == NULL && priv->clip_region != NULL)
+    blended_region = cairo_region_reference (priv->clip_region);
+
+  if (blended_region != NULL && cairo_region_is_empty (blended_region))
+    goto out;
+
   if (priv->mask_texture == NULL)
     {
-      /* Use a single-layer texture if we don't have a mask. */
-
-      if (priv->pipeline_unshaped == NULL)
-        {
-          if (G_UNLIKELY (pipeline_unshaped_template == NULL))
-            {
-              CoglContext *ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
-              pipeline_unshaped_template = cogl_pipeline_new (ctx);
-            }
-
-          priv->pipeline_unshaped = cogl_pipeline_copy (pipeline_unshaped_template);
-        }
-        pipeline = priv->pipeline_unshaped;
+      pipeline = get_unmasked_pipeline (ctx);
     }
   else
     {
-      if (priv->pipeline == NULL)
-	{
-	   if (G_UNLIKELY (pipeline_template == NULL))
-	    {
-              CoglContext *ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
-	      pipeline_template =  cogl_pipeline_new (ctx);
-	      cogl_pipeline_set_layer_combine (pipeline_template, 1,
-					   "RGBA = MODULATE (PREVIOUS, TEXTURE[A])",
-					   NULL);
-	    }
-	  priv->pipeline = cogl_pipeline_copy (pipeline_template);
-	}
-      pipeline = priv->pipeline;
-
+      pipeline = get_masked_pipeline (ctx);
       cogl_pipeline_set_layer_texture (pipeline, 1, priv->mask_texture);
     }
 
@@ -293,66 +390,50 @@ meta_shaped_texture_paint (ClutterActor *actor)
 
   {
     CoglColor color;
-    guchar opacity = clutter_actor_get_paint_opacity (actor);
-    cogl_color_set_from_4ub (&color, opacity, opacity, opacity, opacity);
+    cogl_color_init_from_4ub (&color, opacity, opacity, opacity, opacity);
     cogl_pipeline_set_color (pipeline, &color);
   }
 
-  cogl_set_source (pipeline);
-
-  clutter_actor_get_allocation_box (actor, &alloc);
-
-  if (priv->clip_region)
+  if (blended_region != NULL)
     {
       int n_rects;
-      int i;
-      cairo_rectangle_int_t tex_rect = { 0, 0, tex_width, tex_height };
 
       /* Limit to how many separate rectangles we'll draw; beyond this just
        * fall back and draw the whole thing */
 #     define MAX_RECTS 16
 
-      n_rects = cairo_region_num_rectangles (priv->clip_region);
+      n_rects = cairo_region_num_rectangles (blended_region);
       if (n_rects <= MAX_RECTS)
 	{
-	  float coords[8];
-          float x1, y1, x2, y2;
+          int i;
+          cairo_rectangle_int_t tex_rect = { 0, 0, tex_width, tex_height };
 
 	  for (i = 0; i < n_rects; i++)
 	    {
 	      cairo_rectangle_int_t rect;
 
-	      cairo_region_get_rectangle (priv->clip_region, i, &rect);
+	      cairo_region_get_rectangle (blended_region, i, &rect);
 
 	      if (!gdk_rectangle_intersect (&tex_rect, &rect, &rect))
 		continue;
 
-	      x1 = rect.x;
-	      y1 = rect.y;
-	      x2 = rect.x + rect.width;
-	      y2 = rect.y + rect.height;
-
-	      coords[0] = rect.x / (alloc.x2 - alloc.x1);
-	      coords[1] = rect.y / (alloc.y2 - alloc.y1);
-	      coords[2] = (rect.x + rect.width) / (alloc.x2 - alloc.x1);
-	      coords[3] = (rect.y + rect.height) / (alloc.y2 - alloc.y1);
-
-              coords[4] = coords[0];
-              coords[5] = coords[1];
-              coords[6] = coords[2];
-              coords[7] = coords[3];
-
-              cogl_rectangle_with_multitexture_coords (x1, y1, x2, y2,
-                                                       &coords[0], 8);
+              paint_clipped_rectangle (fb, pipeline, &rect, &alloc);
             }
 
-	  return;
+          goto out;
 	}
     }
 
-  cogl_rectangle (0, 0,
-		  alloc.x2 - alloc.x1,
-		  alloc.y2 - alloc.y1);
+  cogl_framebuffer_draw_rectangle (fb, pipeline,
+                                   0, 0,
+                                   alloc.x2 - alloc.x1,
+                                   alloc.y2 - alloc.y1);
+
+ out:
+  if (pipeline != NULL)
+    cogl_object_unref (pipeline);
+  if (blended_region != NULL)
+    cairo_region_destroy (blended_region);
 }
 
 static void
@@ -368,13 +449,16 @@ meta_shaped_texture_pick (ClutterActor       *actor,
 
   /* If there is no region then use the regular pick */
   if (priv->input_shape_region == NULL)
-    CLUTTER_ACTOR_CLASS (meta_shaped_texture_parent_class)
-      ->pick (actor, color);
+    CLUTTER_ACTOR_CLASS (meta_shaped_texture_parent_class)->pick (actor, color);
   else
     {
       int n_rects;
       float *rectangles;
       int i;
+      CoglPipeline *pipeline;
+      CoglContext *ctx;
+      CoglFramebuffer *fb;
+      CoglColor cogl_color;
 
       /* Note: We don't bother trying to intersect the pick and clip regions
        * since needing to copy the region, do the intersection, and probably
@@ -403,12 +487,17 @@ meta_shaped_texture_pick (ClutterActor       *actor,
           rectangles[pos + 3] = rect.y + rect.height;
         }
 
-      cogl_set_source_color4ub (color->red,
-                                color->green,
-                                color->blue,
-                                color->alpha);
+      ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
+      fb = cogl_get_draw_framebuffer ();
 
-      cogl_rectangles (rectangles, n_rects);
+      cogl_color_init_from_4ub (&cogl_color, color->red, color->green, color->blue, color->alpha);
+
+      pipeline = cogl_pipeline_new (ctx);
+      cogl_pipeline_set_color (pipeline, &cogl_color);
+
+      cogl_framebuffer_draw_rectangles (fb, pipeline,
+                                        rectangles, n_rects);
+      cogl_object_unref (pipeline);
     }
 }
 
@@ -602,18 +691,18 @@ wayland_surface_update_area (MetaShapedTexture *stex,
 }
 
 static void
-queue_damage_redraw_with_clip (MetaShapedTexture *stex,
-                               int x,
-                               int y,
-                               int width,
-                               int height)
+get_clip (MetaShapedTexture *stex,
+          int x,
+          int y,
+          int width,
+          int height,
+          cairo_rectangle_int_t *clip)
 {
   ClutterActor *self = CLUTTER_ACTOR (stex);
   MetaShapedTexturePrivate *priv;
   ClutterActorBox allocation;
   float scale_x;
   float scale_y;
-  cairo_rectangle_int_t clip;
 
   /* NB: clutter_actor_queue_redraw_with_clip expects a box in the actor's
    * coordinate space so we need to convert from surface coordinates to
@@ -642,26 +731,45 @@ queue_damage_redraw_with_clip (MetaShapedTexture *stex,
   scale_x = (allocation.x2 - allocation.x1) / priv->tex_width;
   scale_y = (allocation.y2 - allocation.y1) / priv->tex_height;
 
-  clip.x = x * scale_x;
-  clip.y = y * scale_y;
-  clip.width = width * scale_x;
-  clip.height = height * scale_y;
-  clutter_actor_queue_redraw_with_clip (self, &clip);
+  clip->x = x * scale_x;
+  clip->y = y * scale_y;
+  clip->width = width * scale_x;
+  clip->height = height * scale_y;
 }
 
-void
+/**
+ * meta_shaped_texture_update_area:
+ * @stex: #MetaShapedTexture
+ * @x: the x coordinate of the damaged area
+ * @y: the y coordinate of the damaged area
+ * @width: the width of the damaged area
+ * @height: the height of the damaged area
+ * @unobscured_region: The unobscured region of the window or %NULL if
+ * there is no valid one (like when the actor is transformed or
+ * has a mapped clone)
+ *
+ * Repairs the damaged area indicated by @x, @y, @width and @height
+ * and queues a redraw for the intersection @visibible_region and
+ * the damage area. If @visibible_region is %NULL a redraw will always
+ * get queued.
+ *
+ * Return value: Whether a redraw have been queued or not
+ */
+gboolean
 meta_shaped_texture_update_area (MetaShapedTexture *stex,
-                                 int                x,
-                                 int                y,
-                                 int                width,
-                                 int                height)
+				 int                x,
+				 int                y,
+				 int                width,
+				 int                height,
+				 cairo_region_t    *unobscured_region)
 {
   MetaShapedTexturePrivate *priv;
+  cairo_rectangle_int_t clip;
 
   priv = stex->priv;
 
   if (priv->texture == NULL)
-    return;
+    return FALSE;
 
   switch (priv->type)
     {
@@ -676,7 +784,36 @@ meta_shaped_texture_update_area (MetaShapedTexture *stex,
 
   meta_texture_tower_update_area (priv->paint_tower, x, y, width, height);
 
-  queue_damage_redraw_with_clip (stex, x, y, width, height);
+  get_clip (stex, x, y, width, height, &clip);
+
+  if (unobscured_region)
+    {
+      cairo_region_t *intersection;
+
+      if (cairo_region_is_empty (unobscured_region))
+        return FALSE;
+
+      intersection = cairo_region_copy (unobscured_region);
+      cairo_region_intersect_rectangle (intersection, &clip);
+
+      if (!cairo_region_is_empty (intersection))
+        {
+          cairo_rectangle_int_t damage_rect;
+          cairo_region_get_extents (intersection, &damage_rect);
+          clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (stex), &damage_rect);
+          cairo_region_destroy (intersection);
+
+          return TRUE;
+        }
+
+      cairo_region_destroy (intersection);
+
+      return FALSE;
+    }
+
+  clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (stex), &clip);
+
+  return TRUE;
 }
 
 /**
@@ -733,26 +870,7 @@ meta_shaped_texture_attach_wayland_buffer (MetaShapedTexture  *stex,
   g_return_if_fail (priv->wayland.surface->buffer_ref.buffer == buffer);
 
   if (buffer)
-    {
-      CoglContext *ctx =
-        clutter_backend_get_cogl_context (clutter_get_default_backend ());
-      CoglError *catch_error = NULL;
-      CoglTexture *texture =
-        COGL_TEXTURE (cogl_wayland_texture_2d_new_from_buffer (ctx,
-                                                               buffer->resource,
-                                                               &catch_error));
-      if (!texture)
-        {
-          cogl_error_free (catch_error);
-        }
-      else
-        {
-          buffer->width = cogl_texture_get_width (texture);
-          buffer->height = cogl_texture_get_height (texture);
-        }
-
-      set_cogl_texture (stex, texture);
-    }
+    set_cogl_texture (stex, buffer->texture);
   else
     set_cogl_texture (stex, NULL);
 
@@ -812,8 +930,8 @@ meta_shaped_texture_set_input_shape_region (MetaShapedTexture *stex,
 /**
  * meta_shaped_texture_set_clip_region:
  * @stex: a #MetaShapedTexture
- * @clip_region: (transfer full): the region of the texture that
- *   is visible and should be painted.
+ * @clip_region: the region of the texture that is visible and
+ *   should be painted.
  *
  * Provides a hint to the texture about what areas of the texture
  * are not completely obscured and thus need to be painted. This
@@ -834,10 +952,7 @@ meta_shaped_texture_set_clip_region (MetaShapedTexture *stex,
   priv = stex->priv;
 
   if (priv->clip_region)
-    {
-      cairo_region_destroy (priv->clip_region);
-      priv->clip_region = NULL;
-    }
+    cairo_region_destroy (priv->clip_region);
 
   if (clip_region)
     priv->clip_region = cairo_region_copy (clip_region);
@@ -845,6 +960,36 @@ meta_shaped_texture_set_clip_region (MetaShapedTexture *stex,
     priv->clip_region = NULL;
 }
 
+/**
+ * meta_shaped_texture_set_opaque_region:
+ * @stex: a #MetaShapedTexture
+ * @opaque_region: (transfer full): the region of the texture that
+ *   can have blending turned off.
+ *
+ * As most windows have a large portion that does not require blending,
+ * we can easily turn off blending if we know the areas that do not
+ * require blending. This sets the region where we will not blend for
+ * optimization purposes.
+ */
+void
+meta_shaped_texture_set_opaque_region (MetaShapedTexture *stex,
+                                       cairo_region_t    *opaque_region)
+{
+  MetaShapedTexturePrivate *priv;
+
+  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
+
+  priv = stex->priv;
+
+  if (priv->opaque_region)
+    cairo_region_destroy (priv->opaque_region);
+
+  if (opaque_region)
+    priv->opaque_region = cairo_region_reference (opaque_region);
+  else
+    priv->opaque_region = NULL;
+}
+
 /**
  * meta_shaped_texture_get_image:
  * @stex: A #MetaShapedTexture

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

@@ -70,11 +70,14 @@ void     meta_window_actor_queue_frame_drawn   (MetaWindowActor *self,
 
 cairo_region_t *meta_window_actor_get_obscured_region (MetaWindowActor *self);
 
-void meta_window_actor_set_visible_region         (MetaWindowActor *self,
-                                                   cairo_region_t  *visible_region);
-void meta_window_actor_set_visible_region_beneath (MetaWindowActor *self,
-                                                   cairo_region_t  *beneath_region);
-void meta_window_actor_reset_visible_regions      (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);
 
 void meta_window_actor_effect_completed (MetaWindowActor *actor,
                                          gulong           event);

src/compositor/meta-window-actor.c

@@ -10,7 +10,6 @@
 
 #include <math.h>
 
-#include <X11/extensions/shape.h>
 #include <X11/extensions/Xcomposite.h>
 #include <X11/extensions/Xdamage.h>
 #include <X11/extensions/Xrender.h>
@@ -34,6 +33,7 @@
 #include "meta-texture-rectangle.h"
 #include "region-utils.h"
 #include "meta-wayland-private.h"
+#include "monitor-private.h"
 
 enum {
   POSITION_CHANGED,
@@ -71,13 +71,19 @@ struct _MetaWindowActorPrivate
   /* 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_shape_region;
+  cairo_region_t   *input_region;
   /* The opaque region, from _NET_WM_OPAQUE_REGION, intersected with
    * the shape region. */
   cairo_region_t   *opaque_region;
   /* The region we should clip to when painting the shadow */
   cairo_region_t   *shadow_clip;
 
+  /* The region that is visible, used to optimize out redraws */
+  cairo_region_t   *unobscured_region;
+
+  guint              send_frame_messages_timer;
+  gint64             frame_drawn_time;
+
   /* Extracted size-invariant shape used for shadows */
   MetaWindowShape  *shadow_shape;
 
@@ -187,6 +193,12 @@ static void meta_window_actor_handle_updates (MetaWindowActor *self);
 
 static void check_needs_reshape (MetaWindowActor *self);
 
+static void do_send_frame_drawn (MetaWindowActor *self, FrameData *frame);
+static void do_send_frame_timings (MetaWindowActor  *self,
+                                   FrameData        *frame,
+                                   gint             refresh_interval,
+                                   gint64           presentation_time);
+
 G_DEFINE_TYPE (MetaWindowActor, meta_window_actor, CLUTTER_TYPE_ACTOR);
 
 static void
@@ -357,16 +369,25 @@ meta_window_actor_constructed (GObject *object)
   Window                  xwindow  = priv->xwindow;
   MetaWindow             *window   = priv->window;
   Display                *xdisplay = meta_display_get_xdisplay (display);
-  XRenderPictFormat      *format;
 
   if (!meta_is_wayland_compositor ())
     priv->damage = XDamageCreate (xdisplay, xwindow,
                                   XDamageReportBoundingBox);
 
-  format = XRenderFindVisualFormat (xdisplay, window->xvisual);
+  if (window->client_type == META_WINDOW_CLIENT_TYPE_X11)
+    {
+      XRenderPictFormat      *format;
 
-  if (format && format->type == PictTypeDirect && format->direct.alphaMask)
-    priv->argb32 = TRUE;
+      format = XRenderFindVisualFormat (xdisplay, window->xvisual);
+
+      if (format && format->type == PictTypeDirect && format->direct.alphaMask)
+        priv->argb32 = TRUE;
+    }
+  else
+    {
+      /* XXX: parse shm formats to determine argb32 */
+      priv->argb32 = TRUE;
+    }
 
   if (!priv->actor)
     {
@@ -407,8 +428,8 @@ meta_window_actor_constructed (GObject *object)
 
   /* Start off with empty regions to maintain the invariant that
      these regions are always set */
-  priv->shape_region = cairo_region_create();
-  priv->input_shape_region = cairo_region_create();
+  priv->shape_region = cairo_region_create ();
+  priv->input_region = cairo_region_create ();
 }
 
 static void
@@ -430,15 +451,17 @@ meta_window_actor_dispose (GObject *object)
   info     = meta_screen_get_compositor_data (screen);
 
   if (!meta_is_wayland_compositor ())
-    {
-      display  = meta_screen_get_display (screen);
-      xdisplay = meta_display_get_xdisplay (display);
+    meta_window_actor_detach_x11_pixmap (self);
 
-      meta_window_actor_detach_x11_pixmap (self);
+  if (priv->send_frame_messages_timer != 0)
+    {
+      g_source_remove (priv->send_frame_messages_timer);
+      priv->send_frame_messages_timer = 0;
     }
 
+  g_clear_pointer (&priv->unobscured_region, cairo_region_destroy);
   g_clear_pointer (&priv->shape_region, cairo_region_destroy);
-  g_clear_pointer (&priv->input_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);
 
@@ -449,6 +472,9 @@ meta_window_actor_dispose (GObject *object)
 
   if (!meta_is_wayland_compositor () && priv->damage != None)
     {
+      display  = meta_screen_get_display (screen);
+      xdisplay = meta_display_get_xdisplay (display);
+
       meta_error_trap_push (display);
       XDamageDestroy (xdisplay, priv->damage);
       meta_error_trap_pop (display);
@@ -661,6 +687,16 @@ meta_window_actor_paint (ClutterActor *actor)
   gboolean appears_focused = meta_window_appears_focused (priv->window);
   MetaShadow *shadow = appears_focused ? priv->focused_shadow : priv->unfocused_shadow;
 
+ /* This window got damage when obscured; we set up a timer
+  * to send frame completion events, but since we're drawing
+  * the window now (for some other reason) cancel the timer
+  * and send the completion events normally */
+  if (priv->send_frame_messages_timer != 0)
+    {
+      g_source_remove (priv->send_frame_messages_timer);
+      priv->send_frame_messages_timer = 0;
+    }
+
   if (shadow != NULL)
     {
       MetaShadowParams params;
@@ -923,11 +959,66 @@ meta_window_actor_freeze (MetaWindowActor *self)
     self->priv->freeze_count++;
 }
 
+static
+gboolean send_frame_messages_timeout (gpointer data)
+{
+  MetaWindowActor *self = (MetaWindowActor *) data;
+  MetaWindowActorPrivate *priv = self->priv;
+  FrameData *frame = g_slice_new0 (FrameData);
+
+  frame->sync_request_serial = priv->window->sync_request_serial;
+
+  do_send_frame_drawn (self, frame);
+  do_send_frame_timings (self, frame, 0, 0);
+
+  priv->needs_frame_drawn = FALSE;
+  priv->send_frame_messages_timer = 0;
+  frame_data_free (frame);
+
+  return FALSE;
+}
+
+static void
+queue_send_frame_messages_timeout (MetaWindowActor *self)
+{
+  MetaWindowActorPrivate *priv = self->priv;
+  MetaScreen  *screen  = priv->screen;
+  MetaDisplay *display = meta_screen_get_display (screen);
+  gint64 current_time = meta_compositor_monotonic_time_to_server_time (display, g_get_monotonic_time ());
+  MetaMonitorManager *monitor_manager = meta_monitor_manager_get ();
+  MetaWindow *window = priv->window;
+
+  MetaOutput *outputs;
+  guint n_outputs, i;
+  float refresh_rate = 60.0f;
+  gint interval, offset;
+
+  outputs = meta_monitor_manager_get_outputs (monitor_manager, &n_outputs);
+  for (i = 0; i < n_outputs; i++)
+    {
+      if (outputs[i].output_id == window->monitor->output_id && outputs[i].crtc)
+        {
+          refresh_rate = outputs[i].crtc->current_mode->refresh_rate;
+          break;
+        }
+    }
+
+  interval = (int)(1000000 / refresh_rate) * 6;
+  offset = MAX (0, current_time - priv->frame_drawn_time + interval) / 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
+  * to be drawn when the timer expires.
+  */
+  priv->send_frame_messages_timer = g_timeout_add_full (META_PRIORITY_REDRAW, offset, send_frame_messages_timeout, self, NULL);
+}
+
 static void
 meta_window_actor_damage_all (MetaWindowActor *self)
 {
   MetaWindowActorPrivate *priv = self->priv;
   CoglTexture *texture;
+  gboolean redraw_queued;
 
   if (!priv->needs_damage_all)
     return;
@@ -937,13 +1028,16 @@ meta_window_actor_damage_all (MetaWindowActor *self)
   if (!priv->mapped || priv->needs_pixmap)
     return;
 
-  meta_shaped_texture_update_area (META_SHAPED_TEXTURE (priv->actor),
-                                   0, 0,
-                                   cogl_texture_get_width (texture),
-                                   cogl_texture_get_height (texture));
+  redraw_queued = meta_shaped_texture_update_area (META_SHAPED_TEXTURE (priv->actor),
+                                                   0, 0,
+                                                   cogl_texture_get_width (texture),
+                                                   cogl_texture_get_height (texture),
+                                                   clutter_actor_has_mapped_clones (priv->actor) ?
+                                                   NULL : priv->unobscured_region);
+
+  priv->repaint_scheduled = priv->repaint_scheduled  || redraw_queued;
 
   priv->needs_damage_all = FALSE;
-  priv->repaint_scheduled = TRUE;
 }
 
 static void
@@ -999,14 +1093,31 @@ meta_window_actor_queue_frame_drawn (MetaWindowActor *self,
 
   if (!priv->repaint_scheduled)
     {
+      gboolean is_obscured = FALSE;
+
+      /* Find out whether the window is completly obscured */
+      if (priv->unobscured_region)
+        {
+          cairo_region_t *unobscured_window_region;
+          unobscured_window_region = cairo_region_copy (priv->shape_region);
+          cairo_region_intersect (unobscured_window_region, priv->unobscured_region);
+          is_obscured = cairo_region_is_empty (unobscured_window_region);
+          cairo_region_destroy (unobscured_window_region);
+        }
+
       /* A frame was marked by the client without actually doing any
-       * damage, or while we had the window frozen (e.g. during an
-       * interactive resize.) We need to make sure that the
+       * damage or any unobscured, or while we had the window frozen
+       * (e.g. during an interactive resize.) We need to make sure that the
        * pre_paint/post_paint functions get called, enabling us to
        * send a _NET_WM_FRAME_DRAWN. We do a 1-pixel redraw to get
-       * consistent timing with non-empty frames.
+       * consistent timing with non-empty frames. If the window
+       * is completely obscured we fire off the send_frame_messages timeout.
        */
-      if (priv->mapped && (!meta_is_wayland_compositor () || !priv->needs_pixmap))
+      if (is_obscured)
+        {
+          queue_send_frame_messages_timeout (self);
+        }
+      else if (priv->mapped && (!meta_is_wayland_compositor () || !priv->needs_pixmap))
         {
           const cairo_rectangle_int_t clip = { 0, 0, 1, 1 };
           clutter_actor_queue_redraw_with_clip (priv->actor, &clip);
@@ -1260,7 +1371,7 @@ meta_window_actor_should_unredirect (MetaWindowActor *self)
   if (priv->opacity != 0xff)
     return FALSE;
 
-  if (metaWindow->has_shape)
+  if (metaWindow->shape_region != NULL)
     return FALSE;
 
   if (priv->argb32 && !meta_window_requested_bypass_compositor (metaWindow))
@@ -1726,40 +1837,67 @@ see_region (cairo_region_t *region,
 #endif
 
 /**
- * meta_window_actor_set_visible_region:
+ * meta_window_actor_set_unobscured_region:
  * @self: a #MetaWindowActor
- * @visible_region: the region of the screen that isn't completely
+ * @unobscured_region: the region of the screen that isn't completely
+ *  obscured.
+ *
+ * Provides a hint as to what areas of the window need to queue
+ * redraws when damaged. Regions not in @unobscured_region are completely obscured.
+ * Unlike meta_window_actor_set_clip_region(), the region here
+ * doesn't take into account any clipping that is in effect while drawing.
+ */
+void
+meta_window_actor_set_unobscured_region (MetaWindowActor *self,
+                                         cairo_region_t  *unobscured_region)
+{
+  MetaWindowActorPrivate *priv = self->priv;
+
+  if (priv->unobscured_region)
+    cairo_region_destroy (priv->unobscured_region);
+
+  if (unobscured_region)
+    priv->unobscured_region = cairo_region_copy (unobscured_region);
+  else
+    priv->unobscured_region = NULL;
+}
+
+/**
+ * meta_window_actor_set_clip_region:
+ * @self: a #MetaWindowActor
+ * @clip_region: the region of the screen that isn't completely
  *  obscured.
  *
  * Provides a hint as to what areas of the window need to be
- * drawn. Regions not in @visible_region are completely obscured.
+ * drawn. Regions not in @clip_region are completely obscured or
+ * not drawn in this frame.
  * This will be set before painting then unset afterwards.
  */
 void
-meta_window_actor_set_visible_region (MetaWindowActor *self,
-                                      cairo_region_t  *visible_region)
+meta_window_actor_set_clip_region (MetaWindowActor *self,
+                                   cairo_region_t  *clip_region)
 {
   MetaWindowActorPrivate *priv = self->priv;
 
   meta_shaped_texture_set_clip_region (META_SHAPED_TEXTURE (priv->actor),
-                                       visible_region);
+                                       clip_region);
 }
 
 /**
- * meta_window_actor_set_visible_region_beneath:
+ * meta_window_actor_set_clip_region_beneath:
  * @self: a #MetaWindowActor
- * @visible_region: the region of the screen that isn't completely
+ * @clip_region: the region of the screen that isn't completely
  *  obscured beneath the main window texture.
  *
  * Provides a hint as to what areas need to be drawn *beneath*
- * the main window texture.  This is the relevant visible region
+ * the main window texture.  This is the relevant clip region
  * when drawing the shadow, properly accounting for areas of the
  * shadow hid by the window itself. This will be set before painting
  * then unset afterwards.
  */
 void
-meta_window_actor_set_visible_region_beneath (MetaWindowActor *self,
-                                              cairo_region_t  *beneath_region)
+meta_window_actor_set_clip_region_beneath (MetaWindowActor *self,
+                                           cairo_region_t  *beneath_region)
 {
   MetaWindowActorPrivate *priv = self->priv;
   gboolean appears_focused = meta_window_appears_focused (priv->window);
@@ -1778,14 +1916,14 @@ meta_window_actor_set_visible_region_beneath (MetaWindowActor *self,
 }
 
 /**
- * meta_window_actor_reset_visible_regions:
+ * meta_window_actor_reset_clip_regions:
  * @self: a #MetaWindowActor
  *
- * Unsets the regions set by meta_window_actor_set_visible_region() and
- * meta_window_actor_set_visible_region_beneath()
+ * Unsets the regions set by meta_window_actor_set_clip_region() and
+ * meta_window_actor_set_clip_region_beneath()
  */
 void
-meta_window_actor_reset_visible_regions (MetaWindowActor *self)
+meta_window_actor_reset_clip_regions (MetaWindowActor *self)
 {
   MetaWindowActorPrivate *priv = self->priv;
 
@@ -1960,6 +2098,7 @@ meta_window_actor_process_x11_damage (MetaWindowActor    *self,
 {
   MetaWindowActorPrivate *priv = self->priv;
   MetaCompScreen *info = meta_screen_get_compositor_data (priv->screen);
+  gboolean redraw_queued;
 
   priv->received_x11_damage = TRUE;
 
@@ -2007,12 +2146,16 @@ meta_window_actor_process_x11_damage (MetaWindowActor    *self,
   if (!priv->mapped || priv->needs_pixmap)
     return;
 
-  meta_shaped_texture_update_area (META_SHAPED_TEXTURE (priv->actor),
-                                   event->area.x,
-                                   event->area.y,
-                                   event->area.width,
-                                   event->area.height);
-  priv->repaint_scheduled = TRUE;
+  redraw_queued = meta_shaped_texture_update_area (META_SHAPED_TEXTURE (priv->actor),
+                                                   event->area.x,
+                                                   event->area.y,
+                                                   event->area.width,
+                                                   event->area.height,
+                                                   clutter_actor_has_mapped_clones (priv->actor) ?
+                                                   NULL : priv->unobscured_region);
+
+  priv->repaint_scheduled = priv->repaint_scheduled  || redraw_queued;
+
 }
 
 void
@@ -2023,13 +2166,17 @@ meta_window_actor_process_wayland_damage (MetaWindowActor *self,
                                           int height)
 {
   MetaWindowActorPrivate *priv = self->priv;
+  gboolean redraw_queued;
 
   if (!priv->mapped)
     return;
 
-  meta_shaped_texture_update_area (META_SHAPED_TEXTURE (priv->actor),
-                                   x, y, width, height);
-  priv->repaint_scheduled = TRUE;
+  redraw_queued = meta_shaped_texture_update_area (META_SHAPED_TEXTURE (priv->actor),
+                                                   x, y, width, height,
+                                                   clutter_actor_has_mapped_clones (priv->actor) ?
+                                                   NULL : priv->unobscured_region);
+
+  priv->repaint_scheduled = priv->repaint_scheduled  || redraw_queued;
 }
 
 void
@@ -2171,85 +2318,21 @@ build_and_scan_frame_mask (MetaWindowActor       *self,
   g_free (mask_data);
 }
 
-static cairo_region_t *
-region_create_from_x_rectangles (const XRectangle *rects,
-                                 int n_rects,
-                                 int dx,
-                                 int dy)
-{
-  int i;
-  cairo_rectangle_int_t *cairo_rects = g_newa (cairo_rectangle_int_t, n_rects);
-
-  for (i = 0; i < n_rects; i ++)
-    {
-      cairo_rects[i].x = rects[i].x + dx;
-      cairo_rects[i].y = rects[i].y + dy;
-      cairo_rects[i].width = rects[i].width;
-      cairo_rects[i].height = rects[i].height;
-    }
-
-  return cairo_region_create_rectangles (cairo_rects, n_rects);
-}
-
 static void
-meta_window_actor_update_x11_shape_region (MetaWindowActor *self,
-                                           cairo_rectangle_int_t *client_area)
+meta_window_actor_update_shape_region (MetaWindowActor       *self,
+                                       cairo_rectangle_int_t *client_area)
 {
   MetaWindowActorPrivate *priv = self->priv;
   cairo_region_t *region = NULL;
-  gboolean needs_mask;
 
-  if (priv->shadow_shape != NULL)
+  if (priv->window->frame != NULL && priv->window->shape_region != NULL)
     {
-      meta_window_shape_unref (priv->shadow_shape);
-      priv->shadow_shape = NULL;
+      region = cairo_region_copy (priv->window->shape_region);
+      cairo_region_translate (region, client_area->x, client_area->y);
     }
-
-  meta_shaped_texture_set_mask_texture (META_SHAPED_TEXTURE (priv->actor), NULL);
-  g_clear_pointer (&priv->shape_region, cairo_region_destroy);
-  g_clear_pointer (&priv->opaque_region, cairo_region_destroy);
-
-#ifdef HAVE_SHAPE
-  if (priv->window->has_shape)
+  else if (priv->window->shape_region != NULL)
     {
-      /* Translate the set of XShape rectangles that we
-       * get from the X server to a cairo_region. */
-      MetaScreen *screen = priv->screen;
-      MetaDisplay *display = meta_screen_get_display (screen);
-      Display *xdisplay = meta_display_get_xdisplay (display);
-      XRectangle *rects;
-      int n_rects, ordering;
-
-      meta_error_trap_push (display);
-      rects = XShapeGetRectangles (xdisplay,
-                                   priv->window->xwindow,
-                                   ShapeBounding,
-                                   &n_rects,
-                                   &ordering);
-      meta_error_trap_pop (display);
-
-      if (rects)
-        {
-          region = region_create_from_x_rectangles (rects, n_rects,
-                                                    client_area->x,
-                                                    client_area->y);
-          XFree (rects);
-        }
-    }
-#endif
-
-  needs_mask = (region != NULL) || (priv->window->frame != NULL);
-
-  if (region != NULL)
-    {
-      /* 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);
+      region = cairo_region_reference (priv->window->shape_region);
     }
   else
     {
@@ -2259,11 +2342,67 @@ meta_window_actor_update_x11_shape_region (MetaWindowActor *self,
       region = cairo_region_create_rectangle (client_area);
     }
 
-  /* The region at this point should be constrained to the
-   * bounds of the client rectangle. */
+  meta_shaped_texture_set_mask_texture (META_SHAPED_TEXTURE (priv->actor), NULL);
+  if ((priv->window->shape_region != NULL) || (priv->window->frame != NULL))
+    build_and_scan_frame_mask (self, client_area, region);
+
+  g_clear_pointer (&priv->shape_region, cairo_region_destroy);
+  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->shape_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)
+{
+  MetaWindowActorPrivate *priv = self->priv;
+
+  g_clear_pointer (&priv->opaque_region, cairo_region_destroy);
 
   if (priv->argb32 && priv->window->opaque_region != NULL)
     {
+      MetaFrameBorders borders;
+
+      meta_frame_calc_borders (priv->window->frame, &borders);
+
       /* The opaque region is defined to be a part of the
        * window which ARGB32 will always paint with opaque
        * pixels. For these regions, we want to avoid painting
@@ -2275,91 +2414,16 @@ meta_window_actor_update_x11_shape_region (MetaWindowActor *self,
        * case, graphical glitches will occur.
        */
       priv->opaque_region = cairo_region_copy (priv->window->opaque_region);
-      cairo_region_translate (priv->opaque_region, client_area->x, client_area->y);
-      cairo_region_intersect (priv->opaque_region, region);
+      cairo_region_translate (priv->opaque_region, borders.total.left, borders.total.top);
+      cairo_region_intersect (priv->opaque_region, priv->shape_region);
     }
   else if (priv->argb32)
     priv->opaque_region = NULL;
   else
-    priv->opaque_region = cairo_region_reference (region);
+    priv->opaque_region = cairo_region_reference (priv->shape_region);
 
-  if (needs_mask)
-    {
-      /* This takes the region, generates a mask using GTK+
-       * and scans the mask looking for all opaque pixels,
-       * adding it to region.
-       */
-      build_and_scan_frame_mask (self, client_area, region);
-    }
-
-  priv->shape_region = region;
-
-  meta_window_actor_invalidate_shadow (self);
-}
-
-static void
-meta_window_actor_update_x11_input_shape_region (MetaWindowActor *self,
-                                                 cairo_rectangle_int_t *client_area)
-{
-  MetaWindowActorPrivate *priv = self->priv;
-  cairo_region_t *region = NULL;
-
-  g_clear_pointer (&priv->input_shape_region, cairo_region_destroy);
-
-#ifdef HAVE_SHAPE
-  /* Note: we currently assume that mutter never sets an input region
-   * when there is a frame. */
-  if (priv->window->frame == NULL && priv->window->has_input_shape)
-    {
-      MetaScreen *screen = priv->screen;
-      MetaDisplay *display = meta_screen_get_display (screen);
-      Display *xdisplay = meta_display_get_xdisplay (display);
-      XRectangle *rects;
-      int n_rects, ordering;
-
-      /* Note we only actually query the ShapeInput shape of a window
-       * when we don't have a frame because we assume currently that
-       * mutter never sets an ShapeInput shape on a frame. */
-      meta_error_trap_push (display);
-      rects = XShapeGetRectangles (xdisplay,
-                                   priv->window->xwindow,
-                                   ShapeInput,
-                                   &n_rects,
-                                   &ordering);
-      meta_error_trap_pop (display);
-      if (rects)
-        {
-          region = region_create_from_x_rectangles (rects, n_rects,
-                                                    client_area->x,
-                                                    client_area->y);
-          XFree (rects);
-        }
-    }
-#endif /* HAVE_SHAPE */
-
-  if (region != NULL)
-    {
-      /* The X shape extension requires us to intersect the input
-       * region with the effective bounding shape to determine the
-       * effective input region.
-       */
-      if (priv->shape_region)
-        cairo_region_intersect (region, priv->shape_region);
-      else
-        cairo_region_intersect_rectangle (region, client_area);
-    }
-  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);
-    }
-
-  priv->input_shape_region = region;
-
-  meta_shaped_texture_set_input_shape_region (META_SHAPED_TEXTURE (priv->actor),
-                                              priv->input_shape_region);
+  meta_shaped_texture_set_opaque_region (META_SHAPED_TEXTURE (priv->actor),
+                                         priv->opaque_region);
 }
 
 static void
@@ -2385,24 +2449,9 @@ check_needs_reshape (MetaWindowActor *self)
   else
     client_area.height = priv->window->rect.height;
 
-  if (priv->window->client_type == META_WINDOW_CLIENT_TYPE_X11)
-    {
-      meta_window_actor_update_x11_shape_region (self, &client_area);
-      meta_window_actor_update_x11_input_shape_region (self, &client_area);
-    }
-  else
-    {
-      /* TODO: properly support setting an input region as specified
-       * via the wayland protocol */
-
-      g_clear_pointer (&priv->shape_region, cairo_region_destroy);
-      g_clear_pointer (&priv->opaque_region, cairo_region_destroy);
-      g_clear_pointer (&priv->input_shape_region, cairo_region_destroy);
-
-      priv->shape_region = cairo_region_create_rectangle (&client_area);
-      priv->opaque_region = cairo_region_reference (priv->shape_region);
-      priv->input_shape_region = cairo_region_reference (priv->shape_region);
-    }
+  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;
 }
@@ -2560,6 +2609,35 @@ meta_window_actor_pre_paint (MetaWindowActor *self)
     }
 }
 
+static void
+do_send_frame_drawn (MetaWindowActor *self, FrameData *frame)
+{
+  MetaWindowActorPrivate *priv = self->priv;
+  MetaScreen  *screen  = priv->screen;
+  MetaDisplay *display = meta_screen_get_display (screen);
+  Display *xdisplay = meta_display_get_xdisplay (display);
+
+  XClientMessageEvent ev = { 0, };
+
+  frame->frame_drawn_time = meta_compositor_monotonic_time_to_server_time (display,
+                                                                           g_get_monotonic_time ());
+  priv->frame_drawn_time = frame->frame_drawn_time;
+
+  ev.type = ClientMessage;
+  ev.window = meta_window_get_xwindow (priv->window);
+  ev.message_type = display->atom__NET_WM_FRAME_DRAWN;
+  ev.format = 32;
+  ev.data.l[0] = frame->sync_request_serial & G_GUINT64_CONSTANT(0xffffffff);
+  ev.data.l[1] = frame->sync_request_serial >> 32;
+  ev.data.l[2] = frame->frame_drawn_time & G_GUINT64_CONSTANT(0xffffffff);
+  ev.data.l[3] = frame->frame_drawn_time >> 32;
+
+  meta_error_trap_push (display);
+  XSendEvent (xdisplay, ev.window, False, 0, (XEvent*) &ev);
+  XFlush (xdisplay);
+  meta_error_trap_pop (display);
+}
+
 void
 meta_window_actor_post_paint (MetaWindowActor *self)
 {
@@ -2567,47 +2645,29 @@ meta_window_actor_post_paint (MetaWindowActor *self)
 
   priv->repaint_scheduled = FALSE;
 
+ /* This window had damage, but wasn't actually redrawn because
+  * it is obscured. So we should wait until timer expiration
+  * before sending _NET_WM_FRAME_* messages.
+  */
+  if (priv->send_frame_messages_timer != 0)
+    return;
+
   if (priv->needs_frame_drawn)
     {
-      MetaScreen  *screen  = priv->screen;
-      MetaDisplay *display = meta_screen_get_display (screen);
-      Display *xdisplay = meta_display_get_xdisplay (display);
-
-      XClientMessageEvent ev = { 0, };
-
-      FrameData *frame = priv->frames->data;
-
-      frame->frame_drawn_time = meta_compositor_monotonic_time_to_server_time (display,
-                                                                               g_get_monotonic_time ());
-      ev.type = ClientMessage;
-      ev.window = meta_window_get_xwindow (priv->window);
-      ev.message_type = display->atom__NET_WM_FRAME_DRAWN;
-      ev.format = 32;
-      ev.data.l[0] = frame->sync_request_serial & G_GUINT64_CONSTANT(0xffffffff);
-      ev.data.l[1] = frame->sync_request_serial >> 32;
-      ev.data.l[2] = frame->frame_drawn_time & G_GUINT64_CONSTANT(0xffffffff);
-      ev.data.l[3] = frame->frame_drawn_time >> 32;
-
-      meta_error_trap_push (display);
-      XSendEvent (xdisplay, ev.window, False, 0, (XEvent*) &ev);
-      XFlush (xdisplay);
-      meta_error_trap_pop (display);
-
+      do_send_frame_drawn (self, priv->frames->data);
       priv->needs_frame_drawn = FALSE;
     }
 }
 
 static void
-send_frame_timings (MetaWindowActor  *self,
-                    FrameData        *frame,
-                    CoglFrameInfo    *frame_info,
-                    gint64            presentation_time)
+do_send_frame_timings (MetaWindowActor  *self,
+                       FrameData        *frame,
+                       gint             refresh_interval,
+                       gint64           presentation_time)
 {
   MetaWindowActorPrivate *priv = self->priv;
   MetaDisplay *display = meta_screen_get_display (priv->screen);
   Display *xdisplay = meta_display_get_xdisplay (display);
-  float refresh_rate;
-  int refresh_interval;
 
   XClientMessageEvent ev = { 0, };
 
@@ -2618,13 +2678,6 @@ send_frame_timings (MetaWindowActor  *self,
   ev.data.l[0] = frame->sync_request_serial & G_GUINT64_CONSTANT(0xffffffff);
   ev.data.l[1] = frame->sync_request_serial >> 32;
 
-  refresh_rate = cogl_frame_info_get_refresh_rate (frame_info);
-  /* 0.0 is a flag for not known, but sanity-check against other odd numbers */
-  if (refresh_rate >= 1.0)
-    refresh_interval = (int) (0.5 + 1000000 / refresh_rate);
-  else
-    refresh_interval = 0;
-
   if (presentation_time != 0)
     {
       gint64 presentation_time_server = meta_compositor_monotonic_time_to_server_time (display,
@@ -2646,6 +2699,25 @@ send_frame_timings (MetaWindowActor  *self,
   meta_error_trap_pop (display);
 }
 
+static void
+send_frame_timings (MetaWindowActor  *self,
+                    FrameData        *frame,
+                    CoglFrameInfo    *frame_info,
+                    gint64            presentation_time)
+{
+  float refresh_rate;
+  int refresh_interval;
+
+  refresh_rate = cogl_frame_info_get_refresh_rate (frame_info);
+  /* 0.0 is a flag for not known, but sanity-check against other odd numbers */
+  if (refresh_rate >= 1.0)
+    refresh_interval = (int) (0.5 + 1000000 / refresh_rate);
+  else
+    refresh_interval = 0;
+
+  do_send_frame_timings (self, frame, refresh_interval, presentation_time);
+}
+
 void
 meta_window_actor_frame_complete (MetaWindowActor *self,
                                   CoglFrameInfo   *frame_info,

src/compositor/meta-window-group.c

@@ -90,17 +90,30 @@ painting_untransformed (MetaWindowGroup *window_group,
 static void
 meta_window_group_paint (ClutterActor *actor)
 {
-  cairo_region_t *visible_region;
-  ClutterActor *stage;
+  cairo_region_t *clip_region;
+  cairo_region_t *unobscured_region;
   ClutterActorIter iter;
   ClutterActor *child;
-  cairo_rectangle_int_t visible_rect;
+  cairo_rectangle_int_t visible_rect, clip_rect;
   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;
+  MetaCompScreen *info = meta_screen_get_compositor_data (window_group->screen);
+  ClutterActor *stage = clutter_actor_get_stage (actor);
+
+  /* Start off by treating all windows as completely unobscured, so damage anywhere
+   * in a window queues redraws, but confine it more below. */
+  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_set_unobscured_region (window_actor, NULL);
+        }
+    }
 
   /* Normally we expect an actor to be drawn at it's position on the screen.
    * However, if we're inside the paint of a ClutterClone, that won't be the
@@ -125,17 +138,22 @@ meta_window_group_paint (ClutterActor *actor)
   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));
+
+  unobscured_region = cairo_region_create_rectangle (&visible_rect);
+
   /* Get the clipped redraw bounds from Clutter so that we can avoid
    * painting shadows on windows that don't need to be painted in this
    * frame. In the case of a multihead setup with mismatched monitor
    * sizes, we could intersect this with an accurate union of the
    * monitors to avoid painting shadows that are visible only in the
    * holes. */
-  stage = clutter_actor_get_stage (actor);
   clutter_stage_get_redraw_clip_bounds (CLUTTER_STAGE (stage),
-                                        &visible_rect);
+                                        &clip_rect);
 
-  visible_region = cairo_region_create_rectangle (&visible_rect);
+  clip_region = cairo_region_create_rectangle (&clip_rect);
 
   if (!meta_is_wayland_compositor ())
     {
@@ -146,7 +164,8 @@ meta_window_group_paint (ClutterActor *actor)
           MetaWindow *window = meta_window_actor_get_meta_window (info->unredirected_window);
 
           meta_window_get_outer_rect (window, (MetaRectangle *)&unredirected_rect);
-          cairo_region_subtract_rectangle (visible_region, &unredirected_rect);
+          cairo_region_subtract_rectangle (unobscured_region, &unredirected_rect);
+          cairo_region_subtract_rectangle (clip_region, &unredirected_rect);
         }
     }
 
@@ -186,7 +205,6 @@ meta_window_group_paint (ClutterActor *actor)
 
       if (META_IS_WINDOW_ACTOR (child))
         {
-          MetaWindow *meta_window;
           MetaWindowActor *window_actor = META_WINDOW_ACTOR (child);
           int x, y;
 
@@ -196,27 +214,28 @@ meta_window_group_paint (ClutterActor *actor)
           x += paint_x_offset;
           y += paint_y_offset;
 
+
           /* Temporarily move to the coordinate system of the actor */
-          cairo_region_translate (visible_region, - x, - y);
+          cairo_region_translate (unobscured_region, - x, - y);
+          cairo_region_translate (clip_region, - x, - y);
 
-          meta_window_actor_set_visible_region (window_actor, visible_region);
+          meta_window_actor_set_unobscured_region (window_actor, unobscured_region);
+          meta_window_actor_set_clip_region (window_actor, clip_region);
 
-          /* TODO: Track the opaque regions of wayland clients.
-           * Although wayland clients can report opaque window
-           * regions, for now we assume that all wayland clients are
-           * transparent... */
-          meta_window = meta_window_actor_get_meta_window (window_actor);
-
-          if (meta_window->client_type != META_WINDOW_CLIENT_TYPE_WAYLAND &&
-              clutter_actor_get_paint_opacity (CLUTTER_ACTOR (window_actor)) == 0xff)
+          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 (visible_region, obscured_region);
+                {
+                  cairo_region_subtract (unobscured_region, obscured_region);
+                  cairo_region_subtract (clip_region, obscured_region);
+                }
             }
 
-          meta_window_actor_set_visible_region_beneath (window_actor, visible_region);
-          cairo_region_translate (visible_region, x, y);
+          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))
@@ -229,17 +248,18 @@ meta_window_group_paint (ClutterActor *actor)
           x += paint_x_offset;
           y += paint_y_offset;
 
-          cairo_region_translate (visible_region, - x, - y);
+          cairo_region_translate (clip_region, - x, - y);
 
           if (META_IS_BACKGROUND_GROUP (child))
-            meta_background_group_set_visible_region (META_BACKGROUND_GROUP (child), visible_region);
+            meta_background_group_set_clip_region (META_BACKGROUND_GROUP (child), clip_region);
           else
-            meta_background_actor_set_visible_region (META_BACKGROUND_ACTOR (child), visible_region);
-          cairo_region_translate (visible_region, x, y);
+            meta_background_actor_set_clip_region (META_BACKGROUND_ACTOR (child), clip_region);
+          cairo_region_translate (clip_region, x, y);
         }
     }
 
-  cairo_region_destroy (visible_region);
+  cairo_region_destroy (unobscured_region);
+  cairo_region_destroy (clip_region);
 
   CLUTTER_ACTOR_CLASS (meta_window_group_parent_class)->paint (actor);
 
@@ -252,12 +272,12 @@ meta_window_group_paint (ClutterActor *actor)
       if (META_IS_WINDOW_ACTOR (child))
         {
           MetaWindowActor *window_actor = META_WINDOW_ACTOR (child);
-          meta_window_actor_reset_visible_regions (window_actor);
+          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_visible_region (background_actor, NULL);
+          meta_background_actor_set_clip_region (background_actor, NULL);
         }
     }
 }

src/compositor/plugins/default.c

@@ -24,6 +24,8 @@
 #include <meta/meta-plugin.h>
 #include <meta/window.h>
 #include <meta/util.h>
+#include <meta/meta-background-group.h>
+#include <meta/meta-background-actor.h>
 
 #include <libintl.h>
 #define _(x) dgettext (GETTEXT_PACKAGE, x)
@@ -98,6 +100,8 @@ static void kill_window_effects   (MetaPlugin      *plugin,
                                    MetaWindowActor *actor);
 static void kill_switch_workspace (MetaPlugin      *plugin);
 
+static void confirm_display_change (MetaPlugin *plugin);
+
 static const MetaPluginInfo * plugin_info (MetaPlugin *plugin);
 
 META_PLUGIN_DECLARE(MetaDefaultPlugin, meta_default_plugin);
@@ -113,6 +117,8 @@ struct _MetaDefaultPluginPrivate
   ClutterActor          *desktop1;
   ClutterActor          *desktop2;
 
+  ClutterActor          *background_group;
+
   MetaPluginInfo         info;
 };
 
@@ -203,6 +209,7 @@ meta_default_plugin_class_init (MetaDefaultPluginClass *klass)
   plugin_class->plugin_info      = plugin_info;
   plugin_class->kill_window_effects   = kill_window_effects;
   plugin_class->kill_switch_workspace = kill_switch_workspace;
+  plugin_class->confirm_display_change = confirm_display_change;
 
   g_type_class_add_private (gobject_class, sizeof (MetaDefaultPluginPrivate));
 }
@@ -299,9 +306,58 @@ show_stage (MetaPlugin *plugin)
   return FALSE;
 }
 
+static void
+on_monitors_changed (MetaScreen *screen,
+                     MetaPlugin *plugin)
+{
+  MetaDefaultPlugin *self = META_DEFAULT_PLUGIN (plugin);
+  int i, n;
+
+  clutter_actor_destroy_all_children (self->priv->background_group);
+
+  n = meta_screen_get_n_monitors (screen);
+  for (i = 0; i < n; i++)
+    {
+      MetaRectangle rect;
+      ClutterActor *background;
+      ClutterColor color;
+
+      meta_screen_get_monitor_geometry (screen, i, &rect);
+
+      background = meta_background_actor_new ();
+
+      clutter_actor_set_position (background, rect.x, rect.y);
+      clutter_actor_set_size (background, rect.width, rect.height);
+
+      /* Don't use rand() here, mesa calls srand() internally when
+         parsing the driconf XML, but it's nice if the colors are
+         reproducible.
+      */
+      clutter_color_init (&color,
+                          g_random_int () % 255,
+                          g_random_int () % 255,
+                          g_random_int () % 255,
+                          255);
+      clutter_actor_set_background_color (background, &color);
+
+      clutter_actor_add_child (self->priv->background_group, background);
+    }
+}
+
 static void
 start (MetaPlugin *plugin)
 {
+  MetaDefaultPlugin *self = META_DEFAULT_PLUGIN (plugin);
+  MetaScreen *screen = meta_plugin_get_screen (plugin);
+
+  self->priv->background_group = meta_background_group_new ();
+  clutter_actor_insert_child_below (meta_get_window_group_for_screen (screen),
+                                    self->priv->background_group, NULL);
+
+  g_signal_connect (screen, "monitors-changed",
+                    G_CALLBACK (on_monitors_changed), plugin);
+  on_monitors_changed (screen, plugin);
+
   meta_later_add (META_LATER_BEFORE_REDRAW,
                   (GSourceFunc) show_stage,
                   plugin,
@@ -782,3 +838,33 @@ plugin_info (MetaPlugin *plugin)
 
   return &priv->info;
 }
+
+static void
+on_dialog_closed (GPid     pid,
+                  gint     status,
+                  gpointer user_data)
+{
+  MetaPlugin *plugin = user_data;
+  gboolean ok;
+
+  ok = g_spawn_check_exit_status (status, NULL);
+  meta_plugin_complete_display_change (plugin, ok);
+}
+
+static void
+confirm_display_change (MetaPlugin *plugin)
+{
+  GPid pid;
+
+  pid = meta_show_dialog ("--question",
+                          "Does the display look OK?",
+                          "20",
+                          NULL,
+                          "_Keep This Configuration",
+                          "_Restore Previous Configuration",
+                          "preferences-desktop-display",
+                          0,
+                          NULL, NULL);
+
+  g_child_watch_add (pid, on_dialog_closed, plugin);
+}

src/core/constraints.h

@@ -35,7 +35,8 @@ typedef enum
   META_DO_GRAVITY_ADJUST    = 1 << 1,
   META_IS_USER_ACTION       = 1 << 2,
   META_IS_MOVE_ACTION       = 1 << 3,
-  META_IS_RESIZE_ACTION     = 1 << 4
+  META_IS_RESIZE_ACTION     = 1 << 4,
+  META_IS_WAYLAND_RESIZE    = 1 << 5
 } MetaMoveResizeFlags;
 
 void meta_window_constrain (MetaWindow          *window,

src/core/display-private.h

@@ -39,6 +39,7 @@
 #include "keybindings-private.h"
 #include <meta/prefs.h>
 #include <meta/barrier.h>
+#include <clutter/clutter.h>
 
 #ifdef HAVE_STARTUP_NOTIFICATION
 #include <libsn/sn.h>
@@ -188,7 +189,7 @@ struct _MetaDisplay
   MetaWindow* autoraise_window;
 
   /* Alt+click button grabs */
-  unsigned int window_grab_modifiers;
+  ClutterModifierType window_grab_modifiers;
   
   /* current window operation */
   MetaGrabOp  grab_op;
@@ -476,8 +477,11 @@ gboolean meta_display_modifiers_accelerator_activate (MetaDisplay *display);
 /* In above-tab-keycode.c */
 guint meta_display_get_above_tab_keycode (MetaDisplay *display);
 
-gboolean meta_display_handle_event (MetaDisplay *display,
-                                    XEvent      *event);
+gboolean meta_display_handle_xevent (MetaDisplay *display,
+                                     XEvent      *event);
+
+gboolean meta_display_handle_event (MetaDisplay        *display,
+                                    const ClutterEvent *event);
 
 #ifdef HAVE_XI23
 gboolean meta_display_process_barrier_event (MetaDisplay    *display,

src/core/display.c

@@ -75,6 +75,8 @@
 #include <string.h>
 #include <unistd.h>
 
+#include "meta-xwayland-private.h"
+
 #define GRAB_OP_IS_WINDOW_SWITCH(g)                     \
         (g == META_GRAB_OP_KEYBOARD_TABBING_NORMAL  ||  \
          g == META_GRAB_OP_KEYBOARD_TABBING_DOCK    ||  \
@@ -175,8 +177,10 @@ static void   meta_spew_event           (MetaDisplay    *display,
                                          XEvent         *event);
 #endif
 
-static gboolean event_callback          (XEvent         *event,
+static gboolean xevent_callback         (XEvent         *event,
                                          gpointer        data);
+static gboolean event_callback          (const ClutterEvent *event,
+                                         gpointer            data);
 static Window event_get_modified_window (MetaDisplay    *display,
                                          XEvent         *event);
 static guint32 event_get_time           (MetaDisplay    *display,
@@ -516,6 +520,9 @@ meta_display_open (void)
       return FALSE;
     }
 
+  if (meta_is_wayland_compositor ())
+    meta_xwayland_complete_init ();
+
   if (meta_is_syncing ())
     XSynchronize (xdisplay, True);
   
@@ -599,8 +606,9 @@ meta_display_open (void)
 
   /* Get events */
   meta_ui_add_event_func (the_display->xdisplay,
-                          event_callback,
+                          xevent_callback,
                           the_display);
+  clutter_event_add_filter (event_callback, the_display);
   
   the_display->xids = g_hash_table_new (meta_unsigned_long_hash,
                                         meta_unsigned_long_equal);
@@ -1120,8 +1128,9 @@ meta_display_close (MetaDisplay *display,
   
   /* Stop caring about events */
   meta_ui_remove_event_func (display->xdisplay,
-                             event_callback,
+                             xevent_callback,
                              display);
+  clutter_event_remove_filter (event_callback, display);
   
   /* Free all screens */
   tmp = display->screens;
@@ -2174,8 +2183,42 @@ handle_window_focus_event (MetaDisplay  *display,
     }
 }
 
+static void
+reload_xkb_rules (MetaScreen  *screen)
+{
+  MetaWaylandCompositor *compositor;
+  char **names;
+  int n_names;
+  gboolean ok;
+  const char *rules, *model, *layout, *variant, *options;
+
+  compositor = meta_wayland_compositor_get_default ();
+
+  ok = meta_prop_get_latin1_list (screen->display, screen->xroot,
+                                  screen->display->atom__XKB_RULES_NAMES,
+                                  &names, &n_names);
+  if (!ok)
+    return;
+
+  if (n_names != 5)
+    goto out;
+
+  rules = names[0];
+  model = names[1];
+  layout = names[2];
+  variant = names[3];
+  options = names[4];
+
+  meta_wayland_keyboard_set_keymap_names (&compositor->seat->keyboard,
+                                          rules, model, layout, variant, options,
+                                          META_WAYLAND_KEYBOARD_SKIP_XCLIENTS);
+
+ out:
+  g_strfreev (names);
+}
+
 /**
- * meta_display_handle_event:
+ * meta_display_handle_xevent:
  * @display: The MetaDisplay that events are coming from
  * @event: The event that just happened
  *
@@ -2188,8 +2231,8 @@ handle_window_focus_event (MetaDisplay  *display,
  * dealing with all the kinds of events that might turn up.
  */
 gboolean
-meta_display_handle_event (MetaDisplay *display,
-                           XEvent   *event)
+meta_display_handle_xevent (MetaDisplay *display,
+                            XEvent      *event)
 {
   MetaWindow *window;
   MetaWindow *property_for_window;
@@ -2198,6 +2241,7 @@ meta_display_handle_event (MetaDisplay *display,
   gboolean bypass_compositor;
   gboolean filter_out_event;
   XIEvent *input_event;
+  MetaMonitorManager *monitor;
   MetaScreen *screen;
 
 #ifdef WITH_VERBOSE_MODE
@@ -2208,6 +2252,14 @@ meta_display_handle_event (MetaDisplay *display,
 #ifdef HAVE_STARTUP_NOTIFICATION
   sn_display_process_event (display->sn_display, event);
 #endif
+
+  /* Intercept XRandR events early and don't attempt any
+     processing for them. We still let them through to Gdk though,
+     so it can update its own internal state.
+  */
+  monitor = meta_monitor_manager_get ();
+  if (meta_monitor_manager_handle_xevent (monitor, event))
+    return FALSE;
   
   bypass_compositor = FALSE;
   filter_out_event = FALSE;
@@ -2322,59 +2374,9 @@ meta_display_handle_event (MetaDisplay *display,
           XShapeEvent *sev = (XShapeEvent*) event;
 
           if (sev->kind == ShapeBounding)
-            {
-              if (sev->shaped && !window->has_shape)
-                {
-                  window->has_shape = TRUE;                  
-                  meta_topic (META_DEBUG_SHAPES,
-                              "Window %s now has a shape\n",
-                              window->desc);
-                }
-              else if (!sev->shaped && window->has_shape)
-                {
-                  window->has_shape = FALSE;
-                  meta_topic (META_DEBUG_SHAPES,
-                              "Window %s no longer has a shape\n",
-                              window->desc);
-                }
-              else
-                {
-                  meta_topic (META_DEBUG_SHAPES,
-                              "Window %s shape changed\n",
-                              window->desc);
-                }
-
-              if (display->compositor)
-                meta_compositor_window_x11_shape_changed (display->compositor,
-                                                          window);
-            }
+            meta_window_update_shape_region_x11 (window);
           else if (sev->kind == ShapeInput)
-            {
-              if (sev->shaped && !window->has_input_shape)
-                {
-                  window->has_input_shape = TRUE;                  
-                  meta_topic (META_DEBUG_SHAPES,
-                              "Window %s now has an input shape\n",
-                              window->desc);
-                }
-              else if (!sev->shaped && window->has_input_shape)
-                {
-                  window->has_input_shape = FALSE;
-                  meta_topic (META_DEBUG_SHAPES,
-                              "Window %s no longer has an input shape\n",
-                              window->desc);
-                }
-              else
-                {
-                  meta_topic (META_DEBUG_SHAPES,
-                              "Window %s input shape changed\n",
-                              window->desc);
-                }
-
-              if (display->compositor)
-                meta_compositor_window_x11_shape_changed (display->compositor,
-                                                          window);
-            }
+            meta_window_update_input_region_x11 (window);
         }
       else
         {
@@ -2388,7 +2390,6 @@ meta_display_handle_event (MetaDisplay *display,
 
   if (input_event != NULL)
     {
-      XIDeviceEvent *device_event = (XIDeviceEvent *) input_event;
       XIEnterEvent *enter_event = (XIEnterEvent *) input_event;
 
       if (window && !window->override_redirect &&
@@ -2425,205 +2426,6 @@ meta_display_handle_event (MetaDisplay *display,
           if (meta_display_process_key_event (display, window, (XIDeviceEvent *) input_event))
             filter_out_event = bypass_compositor = TRUE;
           break;
-        case XI_ButtonPress:
-          if (display->grab_op == META_GRAB_OP_COMPOSITOR)
-            break;
-
-          display->overlay_key_only_pressed = FALSE;
-
-          if (device_event->detail == 4 || device_event->detail == 5)
-            /* Scrollwheel event, do nothing and deliver event to compositor below */
-            break;
-
-          if ((window &&
-               meta_grab_op_is_mouse (display->grab_op) &&
-               display->grab_button != device_event->detail &&
-               display->grab_window == window) ||
-              grab_op_is_keyboard (display->grab_op))
-            {
-              meta_topic (META_DEBUG_WINDOW_OPS,
-                          "Ending grab op %u on window %s due to button press\n",
-                          display->grab_op,
-                          (display->grab_window ?
-                           display->grab_window->desc : 
-                           "none"));
-              if (GRAB_OP_IS_WINDOW_SWITCH (display->grab_op))
-                {
-                  MetaScreen *screen;
-                  meta_topic (META_DEBUG_WINDOW_OPS, 
-                              "Syncing to old stack positions.\n");
-                  screen = 
-                    meta_display_screen_for_root (display, device_event->event);
-
-                  if (screen!=NULL)
-                    meta_stack_set_positions (screen->stack,
-                                              display->grab_old_window_stacking);
-                }
-              meta_display_end_grab_op (display,
-                                        device_event->time);
-            }
-          else if (window && display->grab_op == META_GRAB_OP_NONE)
-            {
-              gboolean begin_move = FALSE;
-              unsigned int grab_mask;
-              gboolean unmodified;
-
-              grab_mask = display->window_grab_modifiers;
-              if (g_getenv ("MUTTER_DEBUG_BUTTON_GRABS"))
-                grab_mask |= ControlMask;
-
-              /* Two possible sources of an unmodified event; one is a
-               * client that's letting button presses pass through to the
-               * frame, the other is our focus_window_grab on unmodified
-               * button 1.  So for all such events we focus the window.
-               */
-              unmodified = (device_event->mods.effective & grab_mask) == 0;
-          
-              if (unmodified ||
-                  device_event->detail == 1)
-                {
-                  /* don't focus if frame received, will be lowered in
-                   * frames.c or special-cased if the click was on a
-                   * minimize/close button.
-                   */
-                  if (!frame_was_receiver)
-                    {
-                      if (meta_prefs_get_raise_on_click ()) 
-                        meta_window_raise (window);
-                      else
-                        meta_topic (META_DEBUG_FOCUS,
-                                    "Not raising window on click due to don't-raise-on-click option\n");
-
-                      /* Don't focus panels--they must explicitly request focus.
-                       * See bug 160470
-                       */
-                      if (window->type != META_WINDOW_DOCK)
-                        {
-                          meta_topic (META_DEBUG_FOCUS,
-                                      "Focusing %s due to unmodified button %u press (display.c)\n",
-                                      window->desc, device_event->detail);
-                          meta_window_focus (window, device_event->time);
-                        }
-                      else
-                        /* However, do allow terminals to lose focus due to new
-                         * window mappings after the user clicks on a panel.
-                         */
-                        display->allow_terminal_deactivation = TRUE;
-                    }
-              
-                  /* you can move on alt-click but not on
-                   * the click-to-focus
-                   */
-                  if (!unmodified)
-                    begin_move = TRUE;
-                }
-              else if (!unmodified && device_event->detail == meta_prefs_get_mouse_button_resize())
-                {
-                  if (window->has_resize_func)
-                    {
-                      gboolean north, south;
-                      gboolean west, east;
-                      int root_x, root_y;
-                      MetaGrabOp op;
-
-                      meta_window_get_position (window, &root_x, &root_y);
-
-                      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);
-
-                      if (north && west)
-                        op = META_GRAB_OP_RESIZING_NW;
-                      else if (north && east)
-                        op = META_GRAB_OP_RESIZING_NE;
-                      else if (south && west)
-                        op = META_GRAB_OP_RESIZING_SW;
-                      else if (south && east)
-                        op = META_GRAB_OP_RESIZING_SE;
-                      else if (north)
-                        op = META_GRAB_OP_RESIZING_N;
-                      else if (west)
-                        op = META_GRAB_OP_RESIZING_W;
-                      else if (east)
-                        op = META_GRAB_OP_RESIZING_E;
-                      else if (south)
-                        op = META_GRAB_OP_RESIZING_S;
-                      else /* Middle region is no-op to avoid user triggering wrong action */
-                        op = META_GRAB_OP_NONE;
-                  
-                      if (op != META_GRAB_OP_NONE)
-                        meta_display_begin_grab_op (display,
-                                                    window->screen,
-                                                    window,
-                                                    op,
-                                                    TRUE,
-                                                    FALSE,
-                                                    device_event->detail,
-                                                    0,
-                                                    device_event->time,
-                                                    device_event->root_x,
-                                                    device_event->root_y);
-                    }
-                }
-              else if (device_event->detail == meta_prefs_get_mouse_button_menu())
-                {
-                  if (meta_prefs_get_raise_on_click ())
-                    meta_window_raise (window);
-                  meta_window_show_menu (window,
-                                         device_event->root_x,
-                                         device_event->root_y,
-                                         device_event->detail,
-                                         device_event->time);
-                }
-
-              if (!frame_was_receiver && unmodified)
-                {
-                  /* This is from our synchronous grab since
-                   * it has no modifiers and was on the client window
-                   */
-
-                  meta_verbose ("Allowing events time %u\n",
-                                (unsigned int)device_event->time);
-
-                  XIAllowEvents (display->xdisplay, device_event->deviceid,
-                                 XIReplayDevice, device_event->time);
-                }
-
-              if (begin_move && window->has_move_func)
-                {
-                  meta_display_begin_grab_op (display,
-                                              window->screen,
-                                              window,
-                                              META_GRAB_OP_MOVING,
-                                              TRUE,
-                                              FALSE,
-                                              device_event->detail,
-                                              0,
-                                              device_event->time,
-                                              device_event->root_x,
-                                              device_event->root_y);
-                }
-            }
-          break;
-        case XI_ButtonRelease:
-          if (display->grab_op == META_GRAB_OP_COMPOSITOR)
-            break;
-
-          display->overlay_key_only_pressed = FALSE;
-
-          if (display->grab_window == window &&
-              meta_grab_op_is_mouse (display->grab_op))
-            meta_window_handle_mouse_grab_op_event (window, device_event);
-          break;
-        case XI_Motion:
-          if (display->grab_op == META_GRAB_OP_COMPOSITOR)
-            break;
-
-          if (display->grab_window == window &&
-              meta_grab_op_is_mouse (display->grab_op))
-            meta_window_handle_mouse_grab_op_event (window, device_event);
-          break;
         case XI_Enter:
           if (display->grab_op == META_GRAB_OP_COMPOSITOR)
             break;
@@ -2910,32 +2712,10 @@ meta_display_handle_event (MetaDisplay *display,
                 meta_stack_tracker_configure_event (screen->stack_tracker,
                                                     &event->xconfigure);
             }
+
           if (window && window->override_redirect)
             meta_window_configure_notify (window, &event->xconfigure);
-          else
-            /* Handle screen resize */
-            {
-              MetaScreen *screen;
 
-              screen = meta_display_screen_for_root (display,
-                                                     event->xconfigure.window);
-
-              if (screen != NULL)
-                {
-#ifdef HAVE_RANDR
-                  /* do the resize the official way */
-                  XRRUpdateConfiguration (event);
-#else
-                  /* poke around in Xlib */
-                  screen->xscreen->width   = event->xconfigure.width;
-                  screen->xscreen->height  = event->xconfigure.height;
-#endif
-	      
-                  meta_screen_resize (screen, 
-                                      event->xconfigure.width,
-                                      event->xconfigure.height);
-                }
-            }
           break;
         case ConfigureRequest:
           /* This comment and code is found in both twm and fvwm */
@@ -3009,6 +2789,10 @@ meta_display_handle_event (MetaDisplay *display,
                 else if (event->xproperty.atom ==
                          display->atom__NET_DESKTOP_NAMES)
                   meta_screen_update_workspace_names (screen);
+                else if (meta_is_wayland_compositor () &&
+                         event->xproperty.atom ==
+                         display->atom__XKB_RULES_NAMES)
+                  reload_xkb_rules (screen);
 #if 0
                 else if (event->xproperty.atom ==
                          display->atom__NET_RESTACK_WINDOW)
@@ -3227,8 +3011,8 @@ meta_display_handle_event (MetaDisplay *display,
 }
 
 static gboolean
-event_callback (XEvent  *event,
-                gpointer data)
+xevent_callback (XEvent  *event,
+                 gpointer data)
 {
   MetaDisplay *display = data;
 
@@ -3244,9 +3028,272 @@ event_callback (XEvent  *event,
      translation altogether by directly using the Clutter events */
   if (meta_is_wayland_compositor () &&
       event->type == GenericEvent &&
-      event->xcookie.evtype == XI_Motion)
+      (event->xcookie.evtype == XI_KeyPress ||
+       event->xcookie.evtype == XI_KeyRelease))
     return FALSE;
 
+  return meta_display_handle_xevent (display, event);
+}
+
+static MetaWindow *
+get_window_for_actor (ClutterActor *actor,
+                      gboolean     *frame_was_receiver)
+{
+  /* Look for any ancestor that is a MetaWindowActor to determine
+     which window the actor's event belongs to */
+
+  *frame_was_receiver = TRUE;
+
+  while (actor)
+    {
+      if (META_IS_WINDOW_ACTOR (actor))
+        return meta_window_actor_get_meta_window (META_WINDOW_ACTOR (actor));
+
+      /* If the frame is the receiver then the source will directly be
+         the MetaWindowActor, otherwise it will be a child of a
+         MetaWindowActor so if we make it here then the event isn't
+         referring to the frame. */
+      *frame_was_receiver = FALSE;
+
+      actor = clutter_actor_get_parent (actor);
+    }
+
+  return NULL;
+}
+
+gboolean
+meta_display_handle_event (MetaDisplay        *display,
+                           const ClutterEvent *event)
+{
+  MetaWindow *window;
+  gboolean frame_was_receiver;
+
+  window = get_window_for_actor (event->any.source, &frame_was_receiver);
+
+  switch (event->type)
+    {
+    case CLUTTER_BUTTON_PRESS:
+      if (display->grab_op == META_GRAB_OP_COMPOSITOR)
+        break;
+
+      display->overlay_key_only_pressed = FALSE;
+
+      if ((window &&
+           meta_grab_op_is_mouse (display->grab_op) &&
+           display->grab_button != (int) event->button.button &&
+           display->grab_window == window) ||
+          grab_op_is_keyboard (display->grab_op))
+        {
+          meta_topic (META_DEBUG_WINDOW_OPS,
+                      "Ending grab op %u on window %s due to button press\n",
+                      display->grab_op,
+                      (display->grab_window ?
+                       display->grab_window->desc :
+                       "none"));
+          if (GRAB_OP_IS_WINDOW_SWITCH (display->grab_op))
+            {
+              meta_topic (META_DEBUG_WINDOW_OPS,
+                          "Syncing to old stack positions.\n");
+
+              /* XXX: I'm not sure if this is the right thing to do.
+                 The pre-Wayland code was only calling
+                 meta_stack_set_positions if the modified window was a
+                 root window */
+              if (CLUTTER_ACTOR (event->any.stage) == event->any.source &&
+                  window &&
+                  window->screen)
+                meta_stack_set_positions (window->screen->stack,
+                                          display->grab_old_window_stacking);
+            }
+          meta_display_end_grab_op (display,
+                                    event->any.time);
+        }
+      else if (window && display->grab_op == META_GRAB_OP_NONE)
+        {
+          gboolean begin_move = FALSE;
+          ClutterModifierType grab_mask;
+          gboolean unmodified;
+
+          grab_mask = display->window_grab_modifiers;
+          if (g_getenv ("MUTTER_DEBUG_BUTTON_GRABS"))
+            grab_mask |= CLUTTER_CONTROL_MASK;
+
+          /* Two possible sources of an unmodified event; one is a
+           * client that's letting button presses pass through to the
+           * frame, the other is our focus_window_grab on unmodified
+           * button 1.  So for all such events we focus the window.
+           */
+          unmodified = (clutter_event_get_state (event) & grab_mask) == 0;
+
+          if (unmodified ||
+              event->button.button == 1)
+            {
+              /* don't focus if frame received, will be lowered in
+               * frames.c or special-cased if the click was on a
+               * minimize/close button.
+               */
+              if (!frame_was_receiver)
+                {
+                  if (meta_prefs_get_raise_on_click ())
+                    meta_window_raise (window);
+                  else
+                    meta_topic (META_DEBUG_FOCUS,
+                                "Not raising window on click due "
+                                "to don't-raise-on-click option\n");
+
+                  /* Don't focus panels--they must explicitly request focus.
+                   * See bug 160470
+                   */
+                  if (window->type != META_WINDOW_DOCK)
+                    {
+                      meta_topic (META_DEBUG_FOCUS,
+                                  "Focusing %s due to unmodified button %u "
+                                  "press (display.c)\n",
+                                  window->desc, event->button.button);
+                      meta_window_focus (window, event->any.time);
+                    }
+                  else
+                    /* However, do allow terminals to lose focus due to new
+                     * window mappings after the user clicks on a panel.
+                     */
+                    display->allow_terminal_deactivation = TRUE;
+                }
+
+              /* you can move on alt-click but not on
+               * the click-to-focus
+               */
+              if (!unmodified)
+                begin_move = TRUE;
+            }
+          else if (!unmodified &&
+                   ((int) event->button.button ==
+                    meta_prefs_get_mouse_button_resize ()))
+            {
+              if (window->has_resize_func)
+                {
+                  gboolean north, south;
+                  gboolean west, east;
+                  int root_x, root_y;
+                  MetaGrabOp op;
+
+                  meta_window_get_position (window, &root_x, &root_y);
+
+                  west = (event->button.x <
+                          (root_x + 1 * window->rect.width / 3));
+                  east = (event->button.x >
+                          (root_x + 2 * window->rect.width / 3));
+                  north = (event->button.y <
+                           (root_y + 1 * window->rect.height / 3));
+                  south = (event->button.y >
+                           (root_y + 2 * window->rect.height / 3));
+
+                  if (north && west)
+                    op = META_GRAB_OP_RESIZING_NW;
+                  else if (north && east)
+                    op = META_GRAB_OP_RESIZING_NE;
+                  else if (south && west)
+                    op = META_GRAB_OP_RESIZING_SW;
+                  else if (south && east)
+                    op = META_GRAB_OP_RESIZING_SE;
+                  else if (north)
+                    op = META_GRAB_OP_RESIZING_N;
+                  else if (west)
+                    op = META_GRAB_OP_RESIZING_W;
+                  else if (east)
+                    op = META_GRAB_OP_RESIZING_E;
+                  else if (south)
+                    op = META_GRAB_OP_RESIZING_S;
+                  else
+                    /* Middle region is no-op to avoid user triggering
+                       wrong action */
+                    op = META_GRAB_OP_NONE;
+
+                  if (op != META_GRAB_OP_NONE)
+                    meta_display_begin_grab_op (display,
+                                                window->screen,
+                                                window,
+                                                op,
+                                                TRUE,
+                                                FALSE,
+                                                event->button.button,
+                                                0,
+                                                event->any.time,
+                                                event->button.x,
+                                                event->button.y);
+                }
+            }
+          else if ((int) event->button.button ==
+                   meta_prefs_get_mouse_button_menu ())
+            {
+              if (meta_prefs_get_raise_on_click ())
+                meta_window_raise (window);
+              meta_window_show_menu (window,
+                                     event->button.x,
+                                     event->button.y,
+                                     event->button.button,
+                                     event->any.time);
+            }
+
+          if (!frame_was_receiver && unmodified)
+            {
+              /* This is from our synchronous grab since
+               * it has no modifiers and was on the client window
+               */
+
+              meta_verbose ("Allowing events time %u\n",
+                            (unsigned int) event->any.time);
+
+              clutter_input_device_set_enabled (event->button.device, TRUE);
+            }
+
+          if (begin_move && window->has_move_func)
+            {
+              meta_display_begin_grab_op (display,
+                                          window->screen,
+                                          window,
+                                          META_GRAB_OP_MOVING,
+                                          TRUE,
+                                          FALSE,
+                                          event->button.button,
+                                          0,
+                                          event->any.time,
+                                          event->button.x,
+                                          event->button.y);
+            }
+        }
+      break;
+    case CLUTTER_BUTTON_RELEASE:
+      if (display->grab_op == META_GRAB_OP_COMPOSITOR)
+        break;
+
+      display->overlay_key_only_pressed = FALSE;
+
+      if (display->grab_window == window &&
+          meta_grab_op_is_mouse (display->grab_op))
+        meta_window_handle_mouse_grab_op_event (window, event);
+      break;
+    case CLUTTER_MOTION:
+      if (display->grab_op == META_GRAB_OP_COMPOSITOR)
+        break;
+
+      if (display->grab_window == window &&
+          meta_grab_op_is_mouse (display->grab_op))
+        meta_window_handle_mouse_grab_op_event (window, event);
+      break;
+
+    default:
+      break;
+    }
+
+  return FALSE;
+}
+
+static gboolean
+event_callback (const ClutterEvent *event,
+                gpointer            data)
+{
+  MetaDisplay *display = data;
+
   return meta_display_handle_event (display, event);
 }
 
@@ -6042,7 +6089,7 @@ meta_display_get_xinput_opcode (MetaDisplay *display)
 gboolean
 meta_display_supports_extended_barriers (MetaDisplay *display)
 {
-  return META_DISPLAY_HAS_XINPUT_23 (display);
+  return META_DISPLAY_HAS_XINPUT_23 (display) && !meta_is_wayland_compositor ();
 }
 
 /**

src/core/edid-parse.c

@@ -0,0 +1,539 @@
+/*
+ * Copyright 2007 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/* Author: Soren Sandmann <sandmann@redhat.com> */
+
+#include "edid.h"
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <glib.h>
+
+static int
+get_bit (int in, int bit)
+{
+  return (in & (1 << bit)) >> bit;
+}
+
+static int
+get_bits (int in, int begin, int end)
+{
+  int mask = (1 << (end - begin + 1)) - 1;
+
+  return (in >> begin) & mask;
+}
+
+static int
+decode_header (const uchar *edid)
+{
+  if (memcmp (edid, "\x00\xff\xff\xff\xff\xff\xff\x00", 8) == 0)
+    return TRUE;
+  return FALSE;
+}
+
+static int
+decode_vendor_and_product_identification (const uchar *edid, MonitorInfo *info)
+{
+  int is_model_year;
+
+  /* Manufacturer Code */
+  info->manufacturer_code[0]  = get_bits (edid[0x08], 2, 6);
+  info->manufacturer_code[1]  = get_bits (edid[0x08], 0, 1) << 3;
+  info->manufacturer_code[1] |= get_bits (edid[0x09], 5, 7);
+  info->manufacturer_code[2]  = get_bits (edid[0x09], 0, 4);
+  info->manufacturer_code[3]  = '\0';
+
+  info->manufacturer_code[0] += 'A' - 1;
+  info->manufacturer_code[1] += 'A' - 1;
+  info->manufacturer_code[2] += 'A' - 1;
+
+  /* Product Code */
+  info->product_code = edid[0x0b] << 8 | edid[0x0a];
+
+  /* Serial Number */
+  info->serial_number =
+    edid[0x0c] | edid[0x0d] << 8 | edid[0x0e] << 16 | edid[0x0f] << 24;
+
+  /* Week and Year */
+  is_model_year = FALSE;
+  switch (edid[0x10])
+    {
+    case 0x00:
+      info->production_week = -1;
+      break;
+
+    case 0xff:
+      info->production_week = -1;
+      is_model_year = TRUE;
+      break;
+
+    default:
+      info->production_week = edid[0x10];
+      break;
+    }
+
+  if (is_model_year)
+    {
+      info->production_year = -1;
+      info->model_year = 1990 + edid[0x11];
+    }
+  else
+    {
+      info->production_year = 1990 + edid[0x11];
+      info->model_year = -1;
+    }
+
+  return TRUE;
+}
+
+static int
+decode_edid_version (const uchar *edid, MonitorInfo *info)
+{
+  info->major_version = edid[0x12];
+  info->minor_version = edid[0x13];
+
+  return TRUE;
+}
+
+static int
+decode_display_parameters (const uchar *edid, MonitorInfo *info)
+{
+  /* Digital vs Analog */
+  info->is_digital = get_bit (edid[0x14], 7);
+
+  if (info->is_digital)
+    {
+      int bits;
+
+      static const int bit_depth[8] =
+        {
+          -1, 6, 8, 10, 12, 14, 16, -1
+        };
+
+      static const Interface interfaces[6] =
+        {
+          UNDEFINED, DVI, HDMI_A, HDMI_B, MDDI, DISPLAY_PORT
+        };
+
+      bits = get_bits (edid[0x14], 4, 6);
+      info->connector.digital.bits_per_primary = bit_depth[bits];
+
+      bits = get_bits (edid[0x14], 0, 3);
+
+      if (bits <= 5)
+        info->connector.digital.interface = interfaces[bits];
+      else
+        info->connector.digital.interface = UNDEFINED;
+    }
+  else
+    {
+      int bits = get_bits (edid[0x14], 5, 6);
+
+      static const double levels[][3] =
+        {
+          { 0.7,   0.3,    1.0 },
+          { 0.714, 0.286,  1.0 },
+          { 1.0,   0.4,    1.4 },
+          { 0.7,   0.0,    0.7 },
+        };
+
+      info->connector.analog.video_signal_level = levels[bits][0];
+      info->connector.analog.sync_signal_level = levels[bits][1];
+      info->connector.analog.total_signal_level = levels[bits][2];
+
+      info->connector.analog.blank_to_black = get_bit (edid[0x14], 4);
+
+      info->connector.analog.separate_hv_sync = get_bit (edid[0x14], 3);
+      info->connector.analog.composite_sync_on_h = get_bit (edid[0x14], 2);
+      info->connector.analog.composite_sync_on_green = get_bit (edid[0x14], 1);
+
+      info->connector.analog.serration_on_vsync = get_bit (edid[0x14], 0);
+    }
+
+  /* Screen Size / Aspect Ratio */
+  if (edid[0x15] == 0 && edid[0x16] == 0)
+    {
+      info->width_mm = -1;
+      info->height_mm = -1;
+      info->aspect_ratio = -1.0;
+    }
+  else if (edid[0x16] == 0)
+    {
+      info->width_mm = -1;
+      info->height_mm = -1; 
+      info->aspect_ratio = 100.0 / (edid[0x15] + 99);
+    }
+  else if (edid[0x15] == 0)
+    {
+      info->width_mm = -1;
+      info->height_mm = -1;
+      info->aspect_ratio = 100.0 / (edid[0x16] + 99);
+      info->aspect_ratio = 1/info->aspect_ratio; /* portrait */
+    }
+  else
+    {
+      info->width_mm = 10 * edid[0x15];
+      info->height_mm = 10 * edid[0x16];
+    }
+
+  /* Gamma */
+  if (edid[0x17] == 0xFF)
+    info->gamma = -1.0;
+  else
+    info->gamma = (edid[0x17] + 100.0) / 100.0;
+
+  /* Features */
+  info->standby = get_bit (edid[0x18], 7);
+  info->suspend = get_bit (edid[0x18], 6);
+  info->active_off = get_bit (edid[0x18], 5);
+
+  if (info->is_digital)
+    {
+      info->connector.digital.rgb444 = TRUE;
+      if (get_bit (edid[0x18], 3))
+        info->connector.digital.ycrcb444 = 1;
+      if (get_bit (edid[0x18], 4))
+        info->connector.digital.ycrcb422 = 1;
+    }
+  else
+    {
+      int bits = get_bits (edid[0x18], 3, 4);
+      ColorType color_type[4] =
+        {
+          MONOCHROME, RGB, OTHER_COLOR, UNDEFINED_COLOR
+        };
+
+      info->connector.analog.color_type = color_type[bits];
+    }
+
+  info->srgb_is_standard = get_bit (edid[0x18], 2);
+
+  /* In 1.3 this is called "has preferred timing" */
+  info->preferred_timing_includes_native = get_bit (edid[0x18], 1);
+
+  /* FIXME: In 1.3 this indicates whether the monitor accepts GTF */
+  info->continuous_frequency = get_bit (edid[0x18], 0);
+  return TRUE;
+}
+
+static double
+decode_fraction (int high, int low)
+{
+  double result = 0.0;
+  int i;
+
+  high = (high << 2) | low;
+
+  for (i = 0; i < 10; ++i)
+    result += get_bit (high, i) * pow (2, i - 10);
+
+  return result;
+}
+
+static int
+decode_color_characteristics (const uchar *edid, MonitorInfo *info)
+{
+  info->red_x = decode_fraction (edid[0x1b], get_bits (edid[0x19], 6, 7));
+  info->red_y = decode_fraction (edid[0x1c], get_bits (edid[0x19], 5, 4));
+  info->green_x = decode_fraction (edid[0x1d], get_bits (edid[0x19], 2, 3));
+  info->green_y = decode_fraction (edid[0x1e], get_bits (edid[0x19], 0, 1));
+  info->blue_x = decode_fraction (edid[0x1f], get_bits (edid[0x1a], 6, 7));
+  info->blue_y = decode_fraction (edid[0x20], get_bits (edid[0x1a], 4, 5));
+  info->white_x = decode_fraction (edid[0x21], get_bits (edid[0x1a], 2, 3));
+  info->white_y = decode_fraction (edid[0x22], get_bits (edid[0x1a], 0, 1));
+
+  return TRUE;
+}
+
+static int
+decode_established_timings (const uchar *edid, MonitorInfo *info)
+{
+  static const Timing established[][8] = 
+    {
+      {
+        { 800, 600, 60 },
+        { 800, 600, 56 },
+        { 640, 480, 75 },
+        { 640, 480, 72 },
+        { 640, 480, 67 },
+        { 640, 480, 60 },
+        { 720, 400, 88 },
+        { 720, 400, 70 }
+      },
+      {
+        { 1280, 1024, 75 },
+        { 1024, 768, 75 },
+        { 1024, 768, 70 },
+        { 1024, 768, 60 },
+        { 1024, 768, 87 },
+        { 832, 624, 75 },
+        { 800, 600, 75 },
+        { 800, 600, 72 }
+	},
+      {
+        { 0, 0, 0 },
+        { 0, 0, 0 },
+        { 0, 0, 0 },
+        { 0, 0, 0 },
+        { 0, 0, 0 },
+        { 0, 0, 0 },
+        { 0, 0, 0 },
+        { 1152, 870, 75 }
+      },
+    };
+
+  int i, j, idx;
+
+  idx = 0;
+  for (i = 0; i < 3; ++i)
+    {
+      for (j = 0; j < 8; ++j)
+	{
+          int byte = edid[0x23 + i];
+
+          if (get_bit (byte, j) && established[i][j].frequency != 0)
+            info->established[idx++] = established[i][j];
+	}
+    }
+  return TRUE;
+}
+
+static int
+decode_standard_timings (const uchar *edid, MonitorInfo *info)
+{
+  int i;
+
+  for (i = 0; i < 8; i++)
+    {
+      int first = edid[0x26 + 2 * i];
+      int second = edid[0x27 + 2 * i];
+
+      if (first != 0x01 && second != 0x01)
+	{
+          int w = 8 * (first + 31);
+          int h = 0;
+
+          switch (get_bits (second, 6, 7))
+            {
+	    case 0x00: h = (w / 16) * 10; break;
+	    case 0x01: h = (w / 4) * 3; break;
+	    case 0x02: h = (w / 5) * 4; break;
+	    case 0x03: h = (w / 16) * 9; break;
+	    }
+
+          info->standard[i].width = w;
+          info->standard[i].height = h;
+          info->standard[i].frequency = get_bits (second, 0, 5) + 60;
+	}
+    }
+
+  return TRUE;
+}
+
+static void
+decode_lf_string (const uchar *s, int n_chars, char *result)
+{
+  int i;
+  for (i = 0; i < n_chars; ++i)
+    {
+      if (s[i] == 0x0a)
+	{
+          *result++ = '\0';
+          break;
+	}
+      else if (s[i] == 0x00)
+	{
+          /* Convert embedded 0's to spaces */
+          *result++ = ' ';
+	}
+      else
+	{
+          *result++ = s[i];
+	}
+    }
+}
+
+static void
+decode_display_descriptor (const uchar *desc,
+			   MonitorInfo *info)
+{
+  switch (desc[0x03])
+    {
+    case 0xFC:
+      decode_lf_string (desc + 5, 13, info->dsc_product_name);
+      break;
+    case 0xFF:
+      decode_lf_string (desc + 5, 13, info->dsc_serial_number);
+      break;
+    case 0xFE:
+      decode_lf_string (desc + 5, 13, info->dsc_string);
+      break;
+    case 0xFD:
+      /* Range Limits */
+      break;
+    case 0xFB:
+      /* Color Point */
+      break;
+    case 0xFA:
+      /* Timing Identifications */
+      break;
+    case 0xF9:
+      /* Color Management */
+      break;
+    case 0xF8:
+      /* Timing Codes */
+      break;
+    case 0xF7:
+      /* Established Timings */
+      break;
+    case 0x10:
+      break;
+    }
+}
+
+static void
+decode_detailed_timing (const uchar *timing,
+			DetailedTiming *detailed)
+{
+  int bits;
+  StereoType stereo[] =
+    {
+      NO_STEREO, NO_STEREO, FIELD_RIGHT, FIELD_LEFT,
+      TWO_WAY_RIGHT_ON_EVEN, TWO_WAY_LEFT_ON_EVEN,
+      FOUR_WAY_INTERLEAVED, SIDE_BY_SIDE
+    };
+
+  detailed->pixel_clock = (timing[0x00] | timing[0x01] << 8) * 10000;
+  detailed->h_addr = timing[0x02] | ((timing[0x04] & 0xf0) << 4);
+  detailed->h_blank = timing[0x03] | ((timing[0x04] & 0x0f) << 8);
+  detailed->v_addr = timing[0x05] | ((timing[0x07] & 0xf0) << 4);
+  detailed->v_blank = timing[0x06] | ((timing[0x07] & 0x0f) << 8);
+  detailed->h_front_porch = timing[0x08] | get_bits (timing[0x0b], 6, 7) << 8;
+  detailed->h_sync = timing[0x09] | get_bits (timing[0x0b], 4, 5) << 8;
+  detailed->v_front_porch =
+    get_bits (timing[0x0a], 4, 7) | get_bits (timing[0x0b], 2, 3) << 4;
+  detailed->v_sync =
+    get_bits (timing[0x0a], 0, 3) | get_bits (timing[0x0b], 0, 1) << 4;
+  detailed->width_mm =  timing[0x0c] | get_bits (timing[0x0e], 4, 7) << 8;
+  detailed->height_mm = timing[0x0d] | get_bits (timing[0x0e], 0, 3) << 8;
+  detailed->right_border = timing[0x0f];
+  detailed->top_border = timing[0x10];
+
+  detailed->interlaced = get_bit (timing[0x11], 7);
+
+  /* Stereo */
+  bits = get_bits (timing[0x11], 5, 6) << 1 | get_bit (timing[0x11], 0);
+  detailed->stereo = stereo[bits];
+
+  /* Sync */
+  bits = timing[0x11];
+
+  detailed->digital_sync = get_bit (bits, 4);
+  if (detailed->digital_sync)
+    {
+      detailed->connector.digital.composite = !get_bit (bits, 3);
+
+      if (detailed->connector.digital.composite)
+	{
+          detailed->connector.digital.serrations = get_bit (bits, 2);
+          detailed->connector.digital.negative_vsync = FALSE;
+	}
+      else
+	{
+          detailed->connector.digital.serrations = FALSE;
+          detailed->connector.digital.negative_vsync = !get_bit (bits, 2);
+	}
+
+      detailed->connector.digital.negative_hsync = !get_bit (bits, 0);
+    }
+  else
+    {
+      detailed->connector.analog.bipolar = get_bit (bits, 3);
+      detailed->connector.analog.serrations = get_bit (bits, 2);
+      detailed->connector.analog.sync_on_green = !get_bit (bits, 1);
+    }
+}
+
+static int
+decode_descriptors (const uchar *edid, MonitorInfo *info)
+{
+  int i;
+  int timing_idx;
+
+  timing_idx = 0;
+
+  for (i = 0; i < 4; ++i)
+    {
+      int index = 0x36 + i * 18;
+
+      if (edid[index + 0] == 0x00 && edid[index + 1] == 0x00)
+	{
+          decode_display_descriptor (edid + index, info);
+	}
+      else
+	{
+          decode_detailed_timing (edid + index, &(info->detailed_timings[timing_idx++]));
+	}
+    }
+
+  info->n_detailed_timings = timing_idx;
+
+  return TRUE;
+}
+
+static void
+decode_check_sum (const uchar *edid,
+		  MonitorInfo *info)
+{
+  int i;
+  uchar check = 0;
+
+  for (i = 0; i < 128; ++i)
+    check += edid[i];
+
+  info->checksum = check;
+}
+
+MonitorInfo *
+decode_edid (const uchar *edid)
+{
+  MonitorInfo *info = g_new0 (MonitorInfo, 1);
+
+  decode_check_sum (edid, info);
+
+  if (decode_header (edid)
+      && decode_vendor_and_product_identification (edid, info)
+      && decode_edid_version (edid, info)
+      && decode_display_parameters (edid, info)
+      && decode_color_characteristics (edid, info)
+      && decode_established_timings (edid, info)
+      && decode_standard_timings (edid, info)
+      && decode_descriptors (edid, info))
+    {
+      return info;
+    }
+  else
+    {
+      g_free (info);
+      return NULL;
+    }
+}

src/core/edid.h

@@ -0,0 +1,195 @@
+/* edid.h
+ *
+ * Copyright 2007, 2008, Red Hat, Inc.
+ * 
+ * This file is part of the Gnome Library.
+ * 
+ * The Gnome Library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * The Gnome Library 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
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with the Gnome Library; see the file COPYING.LIB.  If not,
+ * write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ * 
+ * Author: Soren Sandmann <sandmann@redhat.com>
+ */
+
+#ifndef EDID_H
+#define EDID_H
+
+typedef unsigned char uchar;
+typedef struct MonitorInfo MonitorInfo;
+typedef struct Timing Timing;
+typedef struct DetailedTiming DetailedTiming;
+
+typedef enum
+{
+  UNDEFINED,
+  DVI,
+  HDMI_A,
+  HDMI_B,
+  MDDI,
+  DISPLAY_PORT
+} Interface;
+
+typedef enum
+{
+  UNDEFINED_COLOR,
+  MONOCHROME,
+  RGB,
+  OTHER_COLOR
+} ColorType;
+
+typedef enum
+{
+  NO_STEREO,
+  FIELD_RIGHT,
+  FIELD_LEFT,
+  TWO_WAY_RIGHT_ON_EVEN,
+  TWO_WAY_LEFT_ON_EVEN,
+  FOUR_WAY_INTERLEAVED,
+  SIDE_BY_SIDE
+} StereoType;
+
+struct Timing
+{
+  int width;
+  int height;
+  int frequency;
+};
+
+struct DetailedTiming
+{
+  int		pixel_clock;
+  int		h_addr;
+  int		h_blank;
+  int		h_sync;
+  int		h_front_porch;
+  int		v_addr;
+  int		v_blank;
+  int		v_sync;
+  int		v_front_porch;
+  int		width_mm;
+  int		height_mm;
+  int		right_border;
+  int		top_border;
+  int		interlaced;
+  StereoType	stereo;
+
+  int		digital_sync;
+  union
+  {
+    struct
+    {
+      int bipolar;
+      int serrations;
+      int sync_on_green;
+    } analog;
+
+    struct
+    {
+      int composite;
+      int serrations;
+      int negative_vsync;
+      int negative_hsync;
+    } digital;
+  } connector;
+};
+
+struct MonitorInfo
+{
+  int		checksum;
+  char		manufacturer_code[4];
+  int		product_code;
+  unsigned int	serial_number;
+
+  int		production_week;	/* -1 if not specified */
+  int		production_year;	/* -1 if not specified */
+  int		model_year;		/* -1 if not specified */
+
+  int		major_version;
+  int		minor_version;
+
+  int		is_digital;
+
+  union
+  {
+    struct
+    {
+      int	bits_per_primary;
+      Interface	interface;
+      int	rgb444;
+      int	ycrcb444;
+      int	ycrcb422;
+    } digital;
+
+    struct
+    {
+      double	video_signal_level;
+      double	sync_signal_level;
+      double	total_signal_level;
+
+      int	blank_to_black;
+
+      int	separate_hv_sync;
+      int	composite_sync_on_h;
+      int	composite_sync_on_green;
+      int	serration_on_vsync;
+      ColorType	color_type;
+    } analog;
+  } connector;
+
+  int		width_mm;		/* -1 if not specified */
+  int		height_mm;		/* -1 if not specified */
+  double	aspect_ratio;		/* -1.0 if not specififed */
+
+  double	gamma;			/* -1.0 if not specified */
+
+  int		standby;
+  int		suspend;
+  int		active_off;
+
+  int		srgb_is_standard;
+  int		preferred_timing_includes_native;
+  int		continuous_frequency;
+
+  double	red_x;
+  double	red_y;
+  double	green_x;
+  double	green_y;
+  double	blue_x;
+  double	blue_y;
+  double	white_x;
+  double	white_y;
+
+  Timing	established[24];	/* Terminated by 0x0x0 */
+  Timing	standard[8];
+
+  int		n_detailed_timings;
+  DetailedTiming detailed_timings[4];	/* If monitor has a preferred
+                                         * mode, it is the first one
+                                         * (whether it has, is
+                                         * determined by the 
+                                         * preferred_timing_includes
+                                         * bit.
+                                         */
+
+  /* Optional product description */
+  char		dsc_serial_number[14];
+  char		dsc_product_name[14];
+  char		dsc_string[14];		/* Unspecified ASCII data */
+};
+
+MonitorInfo *decode_edid (const uchar *data);
+char *make_display_name (const MonitorInfo *info);
+char *make_display_size_string (int width_mm, int height_mm);
+
+#endif

src/core/keybindings.c

@@ -53,8 +53,13 @@
 #include <X11/XKBlib.h>
 #endif
 
+#ifdef HAVE_WAYLAND
+#include "meta-wayland-private.h"
+#endif
+
 #define SCHEMA_COMMON_KEYBINDINGS "org.gnome.desktop.wm.keybindings"
 #define SCHEMA_MUTTER_KEYBINDINGS "org.gnome.mutter.keybindings"
+#define SCHEMA_MUTTER_WAYLAND_KEYBINDINGS "org.gnome.mutter.wayland.keybindings"
 
 static gboolean add_builtin_keybinding (MetaDisplay          *display,
                                         const char           *name,
@@ -1965,6 +1970,23 @@ process_overlay_key (MetaDisplay *display,
             return TRUE;
           meta_display_overlay_key_activate (display);
         }
+      else
+        {
+          /* In some rare race condition, mutter might not receive the Super_L
+           * KeyRelease event because:
+           * - the compositor might end the modal mode and call XIUngrabDevice
+           *   while the key is still down
+           * - passive grabs are only activated on KeyPress and not KeyRelease.
+           *
+           * In this case, display->overlay_key_only_pressed might be wrong.
+           * Mutter still ought to acknowledge events, otherwise the X server
+           * will not send the next events.
+           *
+           * https://bugzilla.gnome.org/show_bug.cgi?id=666101
+           */
+          XIAllowEvents (display->xdisplay, event->deviceid,
+                         XIAsyncDevice, event->time);
+        }
 
       return TRUE;
     }
@@ -2043,22 +2065,22 @@ meta_display_process_key_event (MetaDisplay   *display,
   gboolean handled;
   const char *str;
   MetaScreen *screen;
+  gboolean was_current_time;
 
-  /* if key event was on root window, we have a shortcut */
-  screen = meta_display_screen_for_root (display, event->event);
-
-  /* else round-trip to server */
-  if (screen == NULL)
-    screen = meta_display_screen_for_xwindow (display, event->event);
-
-  if (screen == NULL)
-    return FALSE; /* event window is destroyed */
+  /* We only ever have one screen */
+  screen = display->screens->data;
 
   /* ignore key events on popup menus and such. */
   if (meta_ui_window_is_widget (screen->ui, event->event))
     return FALSE;
 
-  /* window may be NULL */
+  if (display->current_time == CurrentTime)
+    {
+      display->current_time = event->time;
+      was_current_time = TRUE;
+    }
+  else
+    was_current_time = FALSE;
 
   keysym = XKeycodeToKeysym (display->xdisplay, event->detail, 0);
 
@@ -2076,11 +2098,11 @@ meta_display_process_key_event (MetaDisplay   *display,
     {
       handled = process_overlay_key (display, screen, event, keysym);
       if (handled)
-        return TRUE;
+        goto out;
 
       handled = process_iso_next_group (display, screen, event, keysym);
       if (handled)
-        return TRUE;
+        goto out;
     }
 
   XIAllowEvents (display->xdisplay, event->deviceid,
@@ -2090,7 +2112,11 @@ meta_display_process_key_event (MetaDisplay   *display,
   if (all_keys_grabbed)
     {
       if (display->grab_op == META_GRAB_OP_NONE)
-        return TRUE;
+        {
+          handled = TRUE;
+          goto out;
+        }
+
       /* If we get here we have a global grab, because
        * we're in some special keyboard mode such as window move
        * mode.
@@ -2169,14 +2195,20 @@ meta_display_process_key_event (MetaDisplay   *display,
           meta_display_end_grab_op (display, event->time);
         }
 
-      return TRUE;
+      handled = TRUE;
+      goto out;
     }
 
   /* Do the normal keybindings */
-  return process_event (display->key_bindings,
-                        display->n_key_bindings,
-                        display, screen, window, event, keysym,
-                        !all_keys_grabbed && window);
+  handled = process_event (display->key_bindings,
+                           display->n_key_bindings,
+                           display, screen, window, event, keysym,
+                           !all_keys_grabbed && window);
+
+ out:
+  if (was_current_time)
+    display->current_time = CurrentTime;
+  return handled;
 }
 
 static gboolean
@@ -4081,6 +4113,40 @@ handle_set_spew_mark (MetaDisplay    *display,
   meta_verbose ("-- MARK MARK MARK MARK --\n");
 }
 
+#ifdef HAVE_WAYLAND
+static void
+handle_switch_vt (MetaDisplay    *display,
+                  MetaScreen     *screen,
+                  MetaWindow     *window,
+                  XIDeviceEvent  *event,
+                  MetaKeyBinding *binding,
+                  gpointer        dummy)
+{
+    gint vt = binding->handler->data;
+    MetaWaylandCompositor *compositor;
+    MetaLauncher *launcher;
+
+    compositor = meta_wayland_compositor_get_default ();
+    launcher = meta_wayland_compositor_get_launcher (compositor);
+
+    if (launcher)
+      {
+        GError *error;
+
+        error = NULL;
+        if (!meta_launcher_activate_vt (launcher, vt, &error))
+          {
+            g_warning ("Failed to switch VT: %s", error->message);
+            g_error_free (error);
+          }
+      }
+    else
+      {
+        g_debug ("Ignoring VT switch keybinding, not running as VT manager");
+      }
+}
+#endif
+
 /**
  * meta_keybindings_set_custom_handler:
  * @name: The name of the keybinding to set
@@ -4144,6 +4210,7 @@ init_builtin_key_bindings (MetaDisplay *display)
                                META_KEY_BINDING_IS_REVERSED)
   GSettings *common_keybindings = g_settings_new (SCHEMA_COMMON_KEYBINDINGS);
   GSettings *mutter_keybindings = g_settings_new (SCHEMA_MUTTER_KEYBINDINGS);
+  GSettings *mutter_wayland_keybindings = g_settings_new (SCHEMA_MUTTER_WAYLAND_KEYBINDINGS);
 
   add_builtin_keybinding (display,
                           "switch-to-workspace-1",
@@ -4405,6 +4472,60 @@ init_builtin_key_bindings (MetaDisplay *display)
                           META_KEYBINDING_ACTION_SET_SPEW_MARK,
                           handle_set_spew_mark, 0);
 
+#ifdef HAVE_WAYLAND
+  if (meta_is_wayland_compositor ())
+    {
+      add_builtin_keybinding (display,
+                              "switch-to-session-1",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 1);
+
+      add_builtin_keybinding (display,
+                              "switch-to-session-2",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 2);
+
+      add_builtin_keybinding (display,
+                              "switch-to-session-3",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 3);
+
+      add_builtin_keybinding (display,
+                              "switch-to-session-4",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 4);
+
+      add_builtin_keybinding (display,
+                              "switch-to-session-5",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 5);
+
+      add_builtin_keybinding (display,
+                              "switch-to-session-6",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 6);
+
+      add_builtin_keybinding (display,
+                              "switch-to-session-7",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 7);
+    }
+#endif
+
 #undef REVERSES_AND_REVERSED
 
   /************************ PER WINDOW BINDINGS ************************/

src/core/main.c

@@ -58,6 +58,7 @@
 #include "meta-wayland-private.h"
 
 #include <glib-object.h>
+#include <glib-unix.h>
 #include <gdk/gdkx.h>
 
 #include <stdlib.h>
@@ -248,6 +249,17 @@ meta_get_option_context (void)
   bindtextdomain (GETTEXT_PACKAGE, MUTTER_LOCALEDIR);
   bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
 
+  /* We must set the variables here, because Clutter creates the backend
+     when the first call is made.
+
+     We consider running from mutter-launch equivalent to running from bare metal.
+  */
+  if (getenv ("WESTON_LAUNCHER_SOCK"))
+    {
+      g_setenv ("CLUTTER_BACKEND", "eglnative", TRUE);
+      g_setenv ("CLUTTER_INPUT_BACKEND", "evdev", TRUE);
+    }
+
   ctx = g_option_context_new (NULL);
   g_option_context_add_main_entries (ctx, meta_options, GETTEXT_PACKAGE);
   g_option_context_add_group (ctx, clutter_get_option_group_without_init ());
@@ -352,59 +364,12 @@ meta_finalize (void)
     meta_wayland_finalize ();
 }
 
-static int signal_pipe_fds[2] = { -1, -1 };
-
-static void
-signal_handler (int signum)
-{
-  if (signal_pipe_fds[1] >= 0)
-    {
-      switch (signum)
-        {
-        case SIGTERM:
-          write (signal_pipe_fds[1], "T", 1);
-          break;
-        default:
-          break;
-        }
-    }
-}
-
 static gboolean
-on_signal (GIOChannel *source,
-           GIOCondition condition,
-           void *data)
+on_sigterm (gpointer user_data)
 {
-  char signal;
-  int count;
+  meta_quit (EXIT_SUCCESS);
 
-  for (;;)
-    {
-      count = read (signal_pipe_fds[0], &signal, 1);
-      if (count == EINTR)
-        continue;
-      if (count < 0)
-        {
-          const char *msg = strerror (errno);
-          g_warning ("Error handling signal: %s", msg);
-        }
-      if (count != 1)
-        {
-          g_warning ("Unexpectedly failed to read byte from signal pipe\n");
-          return TRUE;
-        }
-      break;
-    }
-  switch (signal)
-    {
-    case 'T': /* SIGTERM */
-      meta_quit (META_EXIT_SUCCESS);
-      break;
-    default:
-      g_warning ("Spurious character '%c' read from signal pipe", signal);
-    }
-
-  return TRUE;
+  return G_SOURCE_REMOVE;
 }
 
 /**
@@ -418,7 +383,6 @@ meta_init (void)
 {
   struct sigaction act;
   sigset_t empty_mask;
-  GIOChannel *channel;
   
   sigemptyset (&empty_mask);
   act.sa_handler = SIG_IGN;
@@ -433,20 +397,10 @@ meta_init (void)
                 g_strerror (errno));
 #endif
 
-  if (pipe (signal_pipe_fds) != 0)
-    g_printerr ("Failed to create signal pipe: %s\n",
-                g_strerror (errno));
+  if (getenv ("MUTTER_SLEEP_INIT"))
+    sleep (60);
 
-  channel = g_io_channel_unix_new (signal_pipe_fds[0]);
-  g_io_channel_set_flags (channel, G_IO_FLAG_NONBLOCK, NULL);
-  g_io_add_watch (channel, G_IO_IN, (GIOFunc) on_signal, NULL);
-  g_io_channel_set_close_on_unref (channel, TRUE);
-  g_io_channel_unref (channel);
-
-  act.sa_handler = &signal_handler;
-  if (sigaction (SIGTERM, &act, NULL) < 0)
-    g_printerr ("Failed to register SIGTERM handler: %s\n",
-		g_strerror (errno));
+  g_unix_signal_add (SIGTERM, on_sigterm, NULL);
 
   if (g_getenv ("MUTTER_VERBOSE"))
     meta_set_verbose (TRUE);

src/core/meta-idle-monitor.c

@@ -110,19 +110,20 @@ static void
 fire_watch (MetaIdleMonitorWatch *watch)
 {
   MetaIdleMonitor *monitor;
+  guint id;
+  gboolean is_user_active_watch;
 
   monitor = watch->monitor;
   g_object_ref (monitor);
 
-  if (watch->callback)
-    {
-      watch->callback (watch->monitor,
-                       watch->id,
-                       watch->user_data);
-    }
+  id = watch->id;
+  is_user_active_watch = (watch->timeout_msec == 0);
 
-  if (watch->timeout_msec == 0)
-    meta_idle_monitor_remove_watch (watch->monitor, watch->id);
+  if (watch->callback)
+    watch->callback (monitor, id, watch->user_data);
+
+  if (is_user_active_watch)
+    meta_idle_monitor_remove_watch (monitor, id);
 
   g_object_unref (monitor);
 }
@@ -229,7 +230,7 @@ meta_idle_monitor_handle_xevent_all (XEvent *xevent)
 {
   int i;
 
-  for (i = 0; i < device_id_max; i++)
+  for (i = 0; i <= device_id_max; i++)
     if (device_monitors[i])
       meta_idle_monitor_handle_xevent (device_monitors[i], (XSyncAlarmNotifyEvent*)xevent);
 }

src/core/meta-xrandr-shared.h

@@ -0,0 +1,40 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/* 
+ * Copyright (C) 2013 Red Hat Inc.
+ * 
+ * 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.
+ */
+
+/* This file is shared between mutter (src/core/meta-xrandr-shared.h)
+   and gnome-desktop (libgnome-desktop/meta-xrandr-shared.h).
+
+   The canonical place for all changes is mutter.
+
+   There should be no includes in this file.
+*/
+
+#ifndef META_XRANDR_SHARED_H
+#define META_XRANDR_SHARED_H
+
+typedef enum {
+  META_POWER_SAVE_UNKNOWN = -1,
+  META_POWER_SAVE_ON = 0,
+  META_POWER_SAVE_STANDBY,
+  META_POWER_SAVE_SUSPEND,
+  META_POWER_SAVE_OFF,
+} MetaPowerSave;
+
+#endif

src/core/monitor-kms.c

@@ -0,0 +1,858 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* 
+ * Copyright (C) 2013 Red Hat Inc.
+ * 
+ * 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.
+ *
+ * Author: Giovanni Campagna <gcampagn@redhat.com>
+ */
+
+#include "config.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <clutter/clutter.h>
+
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+#include <meta/main.h>
+#include <meta/errors.h>
+#include "monitor-private.h"
+#include "edid.h"
+
+#define ALL_WL_TRANSFORMS ((1 << (WL_OUTPUT_TRANSFORM_FLIPPED_270 + 1)) - 1)
+
+typedef struct {
+  drmModeConnector *connector;
+
+  unsigned n_encoders;
+  drmModeEncoderPtr *encoders;
+  drmModeEncoderPtr  current_encoder;
+
+  /* bitmasks of encoder position in the resources array */
+  uint32_t encoder_mask;
+  uint32_t enc_clone_mask;
+
+  uint32_t dpms_prop_id;
+  uint32_t edid_blob_id;
+  uint32_t has_dpms_prop : 1;
+  uint32_t has_edid_blob : 1;
+} MetaOutputKms;
+
+struct _MetaMonitorManagerKms
+{
+  MetaMonitorManager parent_instance;
+
+  int fd;
+
+  drmModeConnector **connectors;
+  unsigned int       n_connectors;
+
+  drmModeEncoder   **encoders;
+  unsigned int       n_encoders;
+
+  drmModeEncoder    *current_encoder;
+};
+
+struct _MetaMonitorManagerKmsClass
+{
+  MetaMonitorManagerClass parent_class;
+};
+
+G_DEFINE_TYPE (MetaMonitorManagerKms, meta_monitor_manager_kms, META_TYPE_MONITOR_MANAGER);
+
+static int
+compare_outputs (const void *one,
+                 const void *two)
+{
+  const MetaOutput *o_one = one, *o_two = two;
+
+  return strcmp (o_one->name, o_two->name);
+}
+
+static char *
+make_output_name (drmModeConnector *connector)
+{
+  static const char * const connector_type_names[] = {
+    "unknown", "VGA", "DVII", "DVID", "DVID", "Composite",
+    "SVIDEO", "LVDS", "Component", "9PinDIN", "DisplayPort",
+    "HDMIA", "HDMIB", "TV", "eDP"
+  };
+  const char *connector_type_name;
+
+  if (connector->connector_type >= 0 &&
+      connector->connector_type < G_N_ELEMENTS (connector_type_names))
+    connector_type_name = connector_type_names[connector->connector_type];
+  else
+    connector_type_name = "unknown";
+
+  return g_strdup_printf ("%s%d", connector_type_name, connector->connector_id);
+}
+
+static void
+meta_output_destroy_notify (MetaOutput *output)
+{
+  MetaOutputKms *output_kms;
+  unsigned i;
+
+  output_kms = output->driver_private;
+
+  for (i = 0; i < output_kms->n_encoders; i++)
+    drmModeFreeEncoder (output_kms->encoders[i]);
+
+  g_slice_free (MetaOutputKms, output_kms);
+}
+
+static void
+meta_monitor_mode_destroy_notify (MetaMonitorMode *output)
+{
+  g_slice_free (drmModeModeInfo, output->driver_private);
+}
+
+static gboolean
+drm_mode_equal (gconstpointer one,
+                gconstpointer two)
+{
+  return memcmp (one, two, sizeof (drmModeModeInfo)) == 0;
+}
+
+static guint
+drm_mode_hash (gconstpointer ptr)
+{
+  const drmModeModeInfo *mode = ptr;
+  guint hash = 0;
+
+  hash ^= mode->clock;
+  hash ^= mode->hdisplay ^ mode->hsync_start ^ mode->hsync_end;
+  hash ^= mode->vdisplay ^ mode->vsync_start ^ mode->vsync_end;
+  hash ^= mode->vrefresh;
+  hash ^= mode->flags ^ mode->type;
+
+  return hash;
+}
+
+static void
+find_properties (MetaMonitorManagerKms *manager_kms,
+                 MetaOutputKms         *output_kms)
+{
+  drmModePropertyPtr prop;
+  int i;
+
+  for (i = 0; i < output_kms->connector->count_props; i++)
+    {
+      prop = drmModeGetProperty (manager_kms->fd, output_kms->connector->props[i]);
+      if (!prop)
+        continue;
+
+      if ((prop->flags & DRM_MODE_PROP_ENUM) &&
+          strcmp(prop->name, "DPMS") == 0)
+        {
+          output_kms->dpms_prop_id = prop->prop_id;
+          output_kms->has_dpms_prop = TRUE;
+          drmModeFreeProperty(prop);
+          break;
+        }
+
+      if ((prop->flags & DRM_MODE_PROP_BLOB) &&
+          strcmp (prop->name, "EDID") == 0)
+        {
+          output_kms->edid_blob_id = output_kms->connector->prop_values[i];
+          output_kms->has_edid_blob = TRUE;
+          drmModeFreeProperty(prop);
+          break;
+        }
+
+      drmModeFreeProperty(prop);
+    }
+}
+
+static GBytes *
+read_output_edid (MetaMonitorManagerKms *manager_kms,
+                  MetaOutput            *output)
+{
+  MetaOutputKms *output_kms = output->driver_private;
+  drmModePropertyBlobPtr edid_blob = NULL;
+
+  if (!output_kms->has_edid_blob)
+    return NULL;
+
+  edid_blob = drmModeGetPropertyBlob (manager_kms->fd, output_kms->edid_blob_id);
+  if (!edid_blob)
+    {
+      meta_warning ("Failed to read EDID of output %s: %s\n", output->name, strerror(errno));
+      return NULL;
+    }
+
+  if (edid_blob->length > 0 && edid_blob->length % 128 == 0)
+    return g_bytes_new_with_free_func (edid_blob->data, edid_blob->length,
+                                       (GDestroyNotify)drmModeFreePropertyBlob, edid_blob);
+  else
+    drmModeFreePropertyBlob (edid_blob);
+
+  return NULL;
+}
+
+static void
+meta_monitor_manager_kms_read_current (MetaMonitorManager *manager)
+{
+  MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
+  drmModeRes *resources;
+  GHashTable *modes;
+  GHashTableIter iter;
+  drmModeModeInfo *mode;
+  unsigned int i, j, k;
+  unsigned int n_actual_outputs;
+  int width, height;
+
+  resources = drmModeGetResources(manager_kms->fd);
+  modes = g_hash_table_new (drm_mode_hash, drm_mode_equal);
+
+  manager->max_screen_width = resources->max_width;
+  manager->max_screen_height = resources->max_height;
+
+  manager->power_save_mode = META_POWER_SAVE_ON;
+
+  manager_kms->n_connectors = resources->count_connectors;
+  manager_kms->connectors = g_new (drmModeConnector *, manager_kms->n_connectors);
+  for (i = 0; i < manager_kms->n_connectors; i++)
+    {
+      drmModeConnector *connector;
+
+      connector = drmModeGetConnector (manager_kms->fd, resources->connectors[i]);
+      manager_kms->connectors[i] = connector;
+
+      if (connector->connection == DRM_MODE_CONNECTED)
+        {
+          /* Collect all modes for this connector */
+          for (j = 0; j < (unsigned)connector->count_modes; j++)
+            g_hash_table_add (modes, &connector->modes[j]);
+        }
+    }
+
+  manager_kms->n_encoders = resources->count_encoders;
+  manager_kms->encoders = g_new (drmModeEncoder *, manager_kms->n_encoders);
+  for (i = 0; i < manager_kms->n_encoders; i++)
+    {
+      manager_kms->encoders[i] = drmModeGetEncoder (manager_kms->fd,
+                                                    resources->encoders[i]);
+    }
+
+  manager->n_modes = g_hash_table_size (modes);
+  manager->modes = g_new0 (MetaMonitorMode, manager->n_modes);
+  g_hash_table_iter_init (&iter, modes);
+  i = 0;
+  while (g_hash_table_iter_next (&iter, NULL, (gpointer)&mode))
+    {
+      MetaMonitorMode *meta_mode;
+
+      meta_mode = &manager->modes[i];
+
+      meta_mode->mode_id = i;
+      meta_mode->name = g_strndup (mode->name, DRM_DISPLAY_MODE_LEN);
+      meta_mode->width = mode->hdisplay;
+      meta_mode->height = mode->vdisplay;
+      meta_mode->refresh_rate = (1000 * mode->clock /
+                                 ((float)mode->htotal * mode->vtotal));
+
+      meta_mode->driver_private = g_slice_dup (drmModeModeInfo, mode);
+      meta_mode->driver_notify = (GDestroyNotify)meta_monitor_mode_destroy_notify;
+
+      i++;
+    }
+  g_hash_table_destroy (modes);
+
+  manager->n_crtcs = resources->count_crtcs;
+  manager->crtcs = g_new0 (MetaCRTC, manager->n_crtcs);
+  width = 0; height = 0;
+  for (i = 0; i < (unsigned)resources->count_crtcs; i++)
+    {
+      drmModeCrtc *crtc;
+      MetaCRTC *meta_crtc;
+
+      crtc = drmModeGetCrtc (manager_kms->fd, resources->crtcs[i]);
+
+      meta_crtc = &manager->crtcs[i];
+
+      meta_crtc->crtc_id = crtc->crtc_id;
+      meta_crtc->rect.x = crtc->x;
+      meta_crtc->rect.y = crtc->y;
+      meta_crtc->rect.width = crtc->width;
+      meta_crtc->rect.height = crtc->height;
+      meta_crtc->is_dirty = FALSE;
+      meta_crtc->transform = WL_OUTPUT_TRANSFORM_NORMAL;
+      /* FIXME: implement! */
+      meta_crtc->all_transforms = 1 << WL_OUTPUT_TRANSFORM_NORMAL;
+
+      if (crtc->mode_valid)
+        {
+          for (j = 0; j < manager->n_modes; j++)
+            {
+              if (drm_mode_equal (&crtc->mode, manager->modes[j].driver_private))
+                {
+                  meta_crtc->current_mode = &manager->modes[j];
+                  break;
+                }
+            }
+
+          width = MAX (width, meta_crtc->rect.x + meta_crtc->rect.width);
+          height = MAX (height, meta_crtc->rect.y + meta_crtc->rect.height);
+        }
+
+      drmModeFreeCrtc (crtc);
+    }
+
+  manager->screen_width = width;
+  manager->screen_height = height;
+
+  manager->outputs = g_new0 (MetaOutput, manager_kms->n_connectors);
+  n_actual_outputs = 0;
+
+  for (i = 0; i < manager_kms->n_connectors; i++)
+    {
+      MetaOutput *meta_output;
+      MetaOutputKms *output_kms;
+      drmModeConnector *connector;
+      GArray *crtcs;
+      unsigned int crtc_mask;
+      GBytes *edid;
+
+      connector = manager_kms->connectors[i];
+      meta_output = &manager->outputs[n_actual_outputs];
+
+      if (connector->connection == DRM_MODE_CONNECTED)
+	{
+          meta_output->driver_private = output_kms = g_slice_new0 (MetaOutputKms);
+          meta_output->driver_notify = (GDestroyNotify)meta_output_destroy_notify;
+
+	  meta_output->output_id = connector->connector_id;
+	  meta_output->name = make_output_name (connector);
+	  meta_output->width_mm = connector->mmWidth;
+	  meta_output->height_mm = connector->mmHeight;
+
+          if (connector->subpixel == DRM_MODE_SUBPIXEL_UNKNOWN)
+            meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_UNKNOWN;
+          else if (connector->subpixel == DRM_MODE_SUBPIXEL_NONE)
+            meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_NONE;
+          else
+            meta_output->subpixel_order = connector->subpixel;
+
+	  meta_output->n_modes = connector->count_modes;
+	  meta_output->modes = g_new0 (MetaMonitorMode *, meta_output->n_modes);
+	  for (j = 0; j < meta_output->n_modes; j++)
+	    {
+	      for (k = 0; k < manager->n_modes; k++)
+		{
+		  if (drm_mode_equal (&connector->modes[j], manager->modes[k].driver_private))
+		    {
+		      meta_output->modes[j] = &manager->modes[k];
+		      break;
+		    }
+		}
+	    }
+	  meta_output->preferred_mode = meta_output->modes[0];
+
+          output_kms->connector = connector;
+          output_kms->n_encoders = connector->count_encoders;
+          output_kms->encoders = g_new0 (drmModeEncoderPtr, output_kms->n_encoders);
+
+          crtc_mask = 0x7F;
+	  for (j = 0; j < output_kms->n_encoders; j++)
+	    {
+              output_kms->encoders[j] = drmModeGetEncoder (manager_kms->fd, connector->encoders[j]);
+
+              crtc_mask &= output_kms->encoders[j]->possible_crtcs;
+
+              if (output_kms->encoders[j]->encoder_id == connector->encoder_id)
+                output_kms->current_encoder = output_kms->encoders[j];
+            }
+
+          crtcs = g_array_new (FALSE, FALSE, sizeof (MetaCRTC*));
+
+          for (j = 0; j < manager->n_crtcs; j++)
+            {
+              if (crtc_mask & (1 << j))
+                {
+                  MetaCRTC *crtc = &manager->crtcs[j];
+                  g_array_append_val (crtcs, crtc);
+		}
+	    }
+          
+	  meta_output->n_possible_crtcs = crtcs->len;
+	  meta_output->possible_crtcs = (void*)g_array_free (crtcs, FALSE);
+
+          if (output_kms->current_encoder && output_kms->current_encoder->crtc_id != 0)
+            {
+              for (j = 0; j < manager->n_crtcs; j++)
+                {
+                  if (manager->crtcs[j].crtc_id == output_kms->current_encoder->crtc_id)
+                    {
+                      meta_output->crtc = &manager->crtcs[j];
+                      break;
+                    }
+                }
+            }
+          else
+            meta_output->crtc = NULL;
+
+	  meta_output->is_primary = FALSE;
+	  meta_output->is_presentation = FALSE;
+
+          find_properties (manager_kms, output_kms);
+
+          edid = read_output_edid (manager_kms, meta_output);
+          if (edid)
+            {
+              MonitorInfo *parsed_edid;
+              gsize len;
+
+              parsed_edid = decode_edid (g_bytes_get_data (edid, &len));
+              if (parsed_edid)
+                {
+                  meta_output->vendor = g_strndup (parsed_edid->manufacturer_code, 4);
+                  meta_output->product = g_strndup (parsed_edid->dsc_product_name, 14);
+                  meta_output->serial = g_strndup (parsed_edid->dsc_serial_number, 14);
+
+                  g_free (parsed_edid);
+                }
+
+              g_bytes_unref (edid);
+            }
+          if (!meta_output->vendor)
+            {
+              meta_output->vendor = g_strdup ("unknown");
+              meta_output->product = g_strdup ("unknown");
+              meta_output->serial = g_strdup ("unknown");
+            }
+
+          /* FIXME: backlight is a very driver specific thing unfortunately,
+             every DDX does its own thing, and the dumb KMS API does not include it.
+
+             For example, xf86-video-intel has a list of paths to probe in /sys/class/backlight
+             (one for each major HW maker, and then some).
+             We can't do the same because we're not root.
+             It might be best to leave backlight out of the story and rely on the setuid
+             helper in gnome-settings-daemon.
+          */
+	  meta_output->backlight_min = 0;
+          meta_output->backlight_max = 0;
+          meta_output->backlight = -1;
+
+	  n_actual_outputs++;
+	}
+    }
+
+  manager->n_outputs = n_actual_outputs;
+  manager->outputs = g_renew (MetaOutput, manager->outputs, manager->n_outputs);
+
+  /* Sort the outputs for easier handling in MetaMonitorConfig */
+  qsort (manager->outputs, manager->n_outputs, sizeof (MetaOutput), compare_outputs);
+
+  /* Now fix the clones.
+     Code mostly inspired by xf86-video-modesetting. */
+
+  /* XXX: intel hardware doesn't usually have clones, but we only have intel
+     cards, so this code was never tested! */
+  for (i = 0; i < manager->n_outputs; i++)
+    {
+      MetaOutput *meta_output;
+      MetaOutputKms *output_kms;
+
+      meta_output = &manager->outputs[i];
+      output_kms = meta_output->driver_private;
+
+      output_kms->enc_clone_mask = 0xff;
+      output_kms->encoder_mask = 0;
+
+      for (j = 0; j < output_kms->n_encoders; j++)
+	{
+	  for (k = 0; k < manager_kms->n_encoders; k++)
+	    {
+	      if (output_kms->encoders[j]->encoder_id == manager_kms->encoders[k]->encoder_id)
+		{
+                  output_kms->encoder_mask |= (1 << k);
+		  break;
+		}
+	    }
+
+          output_kms->enc_clone_mask &= output_kms->encoders[j]->possible_clones;
+	}
+    }
+
+  for (i = 0; i < manager->n_outputs; i++)
+    {
+      MetaOutput *meta_output;
+      MetaOutputKms *output_kms;
+
+      meta_output = &manager->outputs[i];
+      output_kms = meta_output->driver_private;
+
+      if (output_kms->enc_clone_mask == 0)
+        continue;
+
+      for (j = 0; j < manager->n_outputs; j++)
+        {
+          MetaOutput *meta_clone;
+          MetaOutputKms *clone_kms;
+
+          meta_clone = &manager->outputs[i];
+          clone_kms = meta_clone->driver_private;
+
+          if (meta_clone == meta_output)
+            continue;
+
+          if (clone_kms->encoder_mask == 0)
+            continue;
+
+          if (clone_kms->encoder_mask == output_kms->enc_clone_mask)
+            {
+              meta_output->n_possible_clones++;
+              meta_output->possible_clones = g_renew (MetaOutput *,
+                                                      meta_output->possible_clones,
+                                                      meta_output->n_possible_clones);
+              meta_output->possible_clones[meta_output->n_possible_clones - 1] = meta_clone;
+            }
+        }
+    }
+
+  drmModeFreeResources (resources);
+}
+
+static GBytes *
+meta_monitor_manager_kms_read_edid (MetaMonitorManager *manager,
+                                    MetaOutput         *output)
+{
+  MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
+
+  return read_output_edid (manager_kms, output);
+}
+
+static void
+meta_monitor_manager_kms_set_power_save_mode (MetaMonitorManager *manager,
+                                              MetaPowerSave       mode)
+{
+  MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
+  uint64_t state;
+  unsigned i;
+
+  switch (mode) {
+  case META_POWER_SAVE_ON:
+    state = DRM_MODE_DPMS_ON;
+    break;
+  case META_POWER_SAVE_STANDBY:
+    state = DRM_MODE_DPMS_STANDBY;
+    break;
+  case META_POWER_SAVE_SUSPEND:
+    state = DRM_MODE_DPMS_SUSPEND;
+    break;
+  case META_POWER_SAVE_OFF:
+    state = DRM_MODE_DPMS_SUSPEND;
+    break;
+  default:
+    return;
+  }
+
+  for (i = 0; i < manager->n_outputs; i++)
+    {
+      MetaOutput *meta_output;
+      MetaOutputKms *output_kms;
+
+      meta_output = &manager->outputs[i];
+      output_kms = meta_output->driver_private;
+
+      if (output_kms->has_dpms_prop)
+        {
+          int ok = drmModeConnectorSetProperty(manager_kms->fd, meta_output->output_id,
+                                               output_kms->dpms_prop_id, state);
+
+          if (ok < 0)
+            meta_warning ("Failed to set power save mode for output %s: %s\n",
+                          meta_output->name, strerror (errno));
+        }
+    }
+}
+
+static void
+crtc_free (CoglKmsCrtc *crtc)
+{
+  g_free (crtc->connectors);
+  g_slice_free (CoglKmsCrtc, crtc);
+}
+
+static void
+meta_monitor_manager_kms_apply_configuration (MetaMonitorManager *manager,
+                                              MetaCRTCInfo       **crtcs,
+                                              unsigned int         n_crtcs,
+                                              MetaOutputInfo     **outputs,
+                                              unsigned int         n_outputs)
+{
+  ClutterBackend *backend;
+  CoglContext *cogl_context;
+  CoglDisplay *cogl_display;
+  unsigned i;
+  GPtrArray *cogl_crtcs;
+  int screen_width, screen_height;
+  gboolean ok;
+  GError *error;
+
+  cogl_crtcs = g_ptr_array_new_full (manager->n_crtcs, (GDestroyNotify)crtc_free);
+  screen_width = 0; screen_height = 0;
+  for (i = 0; i < n_crtcs; i++)
+    {
+      MetaCRTCInfo *crtc_info = crtcs[i];
+      MetaCRTC *crtc = crtc_info->crtc;
+      CoglKmsCrtc *cogl_crtc;
+
+      crtc->is_dirty = TRUE;
+
+      cogl_crtc = g_slice_new0 (CoglKmsCrtc);
+      g_ptr_array_add (cogl_crtcs, cogl_crtc);
+
+      if (crtc_info->mode == NULL)
+        {
+          cogl_crtc->id = crtc->crtc_id;
+          cogl_crtc->x = 0;
+          cogl_crtc->y = 0;
+          cogl_crtc->count = 0;
+          memset (&cogl_crtc->mode, 0, sizeof (drmModeModeInfo));
+          cogl_crtc->connectors = NULL;
+          cogl_crtc->count = 0;
+
+          crtc->rect.x = 0;
+          crtc->rect.y = 0;
+          crtc->rect.width = 0;
+          crtc->rect.height = 0;
+          crtc->current_mode = NULL;
+        }
+      else
+        {
+          MetaMonitorMode *mode;
+          uint32_t *outputs;
+          unsigned int j, n_outputs;
+          int width, height;
+
+          mode = crtc_info->mode;
+
+          cogl_crtc->id = crtc->crtc_id;
+          cogl_crtc->x = crtc_info->x;
+          cogl_crtc->y = crtc_info->y;
+          cogl_crtc->count = n_outputs = crtc_info->outputs->len;
+          cogl_crtc->connectors = outputs = g_new (uint32_t, n_outputs);
+
+          for (j = 0; j < n_outputs; j++)
+            {
+              MetaOutput *output = ((MetaOutput**)crtc_info->outputs->pdata)[j];
+
+              outputs[j] = output->output_id;
+
+              output->is_dirty = TRUE;
+              output->crtc = crtc;
+            }
+
+          memcpy (&cogl_crtc->mode, crtc_info->mode->driver_private,
+                  sizeof (drmModeModeInfo));
+
+          if (meta_monitor_transform_is_rotated (crtc_info->transform))
+            {
+              width = mode->height;
+              height = mode->width;
+            }
+          else
+            {
+              width = mode->width;
+              height = mode->height;
+            }
+
+          screen_width = MAX (screen_width, crtc_info->x + width);
+          screen_height = MAX (screen_height, crtc_info->y + height);
+
+          crtc->rect.x = crtc_info->x;
+          crtc->rect.y = crtc_info->y;
+          crtc->rect.width = width;
+          crtc->rect.height = height;
+          crtc->current_mode = mode;
+          crtc->transform = crtc_info->transform;
+        }
+    }
+
+  /* Disable CRTCs not mentioned in the list */
+  for (i = 0; i < manager->n_crtcs; i++)
+    {
+      MetaCRTC *crtc = &manager->crtcs[i];
+      CoglKmsCrtc *cogl_crtc;
+
+      crtc->logical_monitor = NULL;
+
+      if (crtc->is_dirty)
+        {
+          crtc->is_dirty = FALSE;
+          continue;
+        }
+
+      cogl_crtc = g_slice_new0 (CoglKmsCrtc);
+      g_ptr_array_add (cogl_crtcs, cogl_crtc);
+
+      cogl_crtc->id = crtc->crtc_id;
+      cogl_crtc->x = 0;
+      cogl_crtc->y = 0;
+      cogl_crtc->count = 0;
+      memset (&cogl_crtc->mode, 0, sizeof (drmModeModeInfo));
+      cogl_crtc->connectors = NULL;
+      cogl_crtc->count = 0;
+
+      crtc->rect.x = 0;
+      crtc->rect.y = 0;
+      crtc->rect.width = 0;
+      crtc->rect.height = 0;
+      crtc->current_mode = NULL;
+    }
+
+  backend = clutter_get_default_backend ();
+  cogl_context = clutter_backend_get_cogl_context (backend);
+  cogl_display = cogl_context_get_display (cogl_context);
+
+  error = NULL;
+  ok = cogl_kms_display_set_layout (cogl_display, screen_width, screen_height,
+                                    (CoglKmsCrtc**)cogl_crtcs->pdata, cogl_crtcs->len, &error);
+  g_ptr_array_unref (cogl_crtcs);
+
+  if (!ok)
+    {
+      meta_warning ("Applying display configuration failed: %s\n", error->message);
+      g_error_free (error);
+      return;
+    }
+
+  for (i = 0; i < n_outputs; i++)
+    {
+      MetaOutputInfo *output_info = outputs[i];
+      MetaOutput *output = output_info->output;
+
+      output->is_primary = output_info->is_primary;
+      output->is_presentation = output_info->is_presentation;
+    }
+
+  /* Disable outputs not mentioned in the list */
+  for (i = 0; i < manager->n_outputs; i++)
+    {
+      MetaOutput *output = &manager->outputs[i];
+
+      if (output->is_dirty)
+        {
+          output->is_dirty = FALSE;
+          continue;
+        }
+
+      output->crtc = NULL;
+      output->is_primary = FALSE;
+    }
+
+  manager->screen_width = screen_width;
+  manager->screen_height = screen_height;
+
+  meta_monitor_manager_rebuild_derived (manager);
+}
+
+static void
+meta_monitor_manager_kms_get_crtc_gamma (MetaMonitorManager  *manager,
+                                         MetaCRTC            *crtc,
+                                         gsize               *size,
+                                         unsigned short     **red,
+                                         unsigned short     **green,
+                                         unsigned short     **blue)
+{
+  MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
+  drmModeCrtc *kms_crtc;
+
+  kms_crtc = drmModeGetCrtc (manager_kms->fd, crtc->crtc_id);
+
+  *size = kms_crtc->gamma_size;
+  *red = g_new (unsigned short, *size);
+  *green = g_new (unsigned short, *size);
+  *blue = g_new (unsigned short, *size);
+
+  drmModeCrtcGetGamma (manager_kms->fd, crtc->crtc_id, *size, *red, *green, *blue);
+
+  drmModeFreeCrtc (kms_crtc);
+}
+
+static void
+meta_monitor_manager_kms_set_crtc_gamma (MetaMonitorManager *manager,
+                                         MetaCRTC           *crtc,
+                                         gsize               size,
+                                         unsigned short     *red,
+                                         unsigned short     *green,
+                                         unsigned short     *blue)
+{
+  MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
+
+  drmModeCrtcSetGamma (manager_kms->fd, crtc->crtc_id, size, red, green, blue);
+}
+
+static void
+meta_monitor_manager_kms_init (MetaMonitorManagerKms *manager_kms)
+{
+  ClutterBackend *backend;
+  CoglContext *cogl_context;
+  CoglDisplay *cogl_display;
+  CoglRenderer *cogl_renderer;
+
+  backend = clutter_get_default_backend ();
+  cogl_context = clutter_backend_get_cogl_context (backend);
+  cogl_display = cogl_context_get_display (cogl_context);
+  cogl_renderer = cogl_display_get_renderer (cogl_display);
+
+  manager_kms->fd = cogl_kms_renderer_get_kms_fd (cogl_renderer);
+}
+
+static void
+meta_monitor_manager_kms_finalize (GObject *object)
+{
+  MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (object);
+  unsigned i;
+
+  for (i = 0; i < manager_kms->n_encoders; i++)
+    drmModeFreeEncoder (manager_kms->encoders[i]);
+  for (i = 0; i < manager_kms->n_connectors; i++)
+    drmModeFreeConnector (manager_kms->connectors[i]);
+
+  g_free (manager_kms->encoders);
+  g_free (manager_kms->connectors);
+
+  G_OBJECT_CLASS (meta_monitor_manager_kms_parent_class)->finalize (object);
+}
+
+static void
+meta_monitor_manager_kms_class_init (MetaMonitorManagerKmsClass *klass)
+{
+  MetaMonitorManagerClass *manager_class = META_MONITOR_MANAGER_CLASS (klass);
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = meta_monitor_manager_kms_finalize;
+
+  manager_class->read_current = meta_monitor_manager_kms_read_current;
+  manager_class->read_edid = meta_monitor_manager_kms_read_edid;
+  manager_class->apply_configuration = meta_monitor_manager_kms_apply_configuration;
+  manager_class->set_power_save_mode = meta_monitor_manager_kms_set_power_save_mode;
+  manager_class->get_crtc_gamma = meta_monitor_manager_kms_get_crtc_gamma;
+  manager_class->set_crtc_gamma = meta_monitor_manager_kms_set_crtc_gamma;
+}
+

src/core/monitor-private.h

@@ -0,0 +1,416 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/**
+ * \file screen-private.h  Handling of monitor configuration
+ *
+ * Managing multiple monitors
+ * This file contains structures and functions that handle
+ * multiple monitors, including reading the current configuration
+ * and available hardware, and applying it.
+ *
+ * This interface is private to mutter, API users should look
+ * at MetaScreen instead.
+ */
+
+/* 
+ * Copyright (C) 2001 Havoc Pennington
+ * Copyright (C) 2003 Rob Adams
+ * Copyright (C) 2004-2006 Elijah Newren
+ * Copyright (C) 2013 Red Hat Inc.
+ * 
+ * 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.
+ */
+
+#ifndef META_MONITOR_PRIVATE_H
+#define META_MONITOR_PRIVATE_H
+
+#include <cogl/cogl.h>
+#include <libgnome-desktop/gnome-pnp-ids.h>
+
+#include "display-private.h"
+#include <meta/screen.h>
+#include "stack-tracker.h"
+#include "ui.h"
+#ifdef HAVE_WAYLAND
+#include <wayland-server.h>
+#endif
+#include "meta-xrandr-shared.h"
+
+#include "meta-dbus-xrandr.h"
+
+typedef struct _MetaMonitorManagerClass    MetaMonitorManagerClass;
+typedef struct _MetaMonitorManager         MetaMonitorManager;
+typedef struct _MetaMonitorConfigClass    MetaMonitorConfigClass;
+typedef struct _MetaMonitorConfig         MetaMonitorConfig;
+
+#ifndef HAVE_WAYLAND
+enum wl_output_transform {
+  WL_OUTPUT_TRANSFORM_NORMAL,
+  WL_OUTPUT_TRANSFORM_90,
+  WL_OUTPUT_TRANSFORM_180,
+  WL_OUTPUT_TRANSFORM_270,
+  WL_OUTPUT_TRANSFORM_FLIPPED,
+  WL_OUTPUT_TRANSFORM_FLIPPED_90,
+  WL_OUTPUT_TRANSFORM_FLIPPED_180,
+  WL_OUTPUT_TRANSFORM_FLIPPED_270
+};
+#endif
+
+typedef struct _MetaOutput MetaOutput;
+typedef struct _MetaCRTC MetaCRTC;
+typedef struct _MetaMonitorMode MetaMonitorMode;
+typedef struct _MetaMonitorInfo MetaMonitorInfo;
+typedef struct _MetaCRTCInfo MetaCRTCInfo;
+typedef struct _MetaOutputInfo MetaOutputInfo;
+
+struct _MetaOutput
+{
+  /* The CRTC driving this output, NULL if the output is not enabled */
+  MetaCRTC *crtc;
+  /* The low-level ID of this output, used to apply back configuration */
+  glong output_id;
+  char *name;
+  char *vendor;
+  char *product;
+  char *serial;
+  int width_mm;
+  int height_mm;
+  CoglSubpixelOrder subpixel_order;
+
+  MetaMonitorMode *preferred_mode;
+  MetaMonitorMode **modes;
+  unsigned int n_modes;
+
+  MetaCRTC **possible_crtcs;
+  unsigned int n_possible_crtcs;
+
+  MetaOutput **possible_clones;
+  unsigned int n_possible_clones;
+
+  int backlight;
+  int backlight_min;
+  int backlight_max;
+
+  /* Used when changing configuration */
+  gboolean is_dirty;
+
+  /* The low-level bits used to build the high-level info
+     in MetaMonitorInfo
+
+     XXX: flags maybe?
+     There is a lot of code that uses MonitorInfo->is_primary,
+     but nobody uses MetaOutput yet
+  */
+  gboolean is_primary;
+  gboolean is_presentation;
+
+  gpointer driver_private;
+  GDestroyNotify driver_notify;
+};
+
+struct _MetaCRTC
+{
+  glong crtc_id;
+  MetaRectangle rect;
+  MetaMonitorMode *current_mode;
+  enum wl_output_transform transform;
+  unsigned int all_transforms;
+
+  /* Only used to build the logical configuration
+     from the HW one
+  */
+  MetaMonitorInfo *logical_monitor;
+
+  /* Used when changing configuration */
+  gboolean is_dirty;
+};
+
+struct _MetaMonitorMode
+{
+  /* The low-level ID of this mode, used to apply back configuration */
+  glong mode_id;
+  char *name;
+
+  int width;
+  int height;
+  float refresh_rate;
+
+  gpointer driver_private;
+  GDestroyNotify driver_notify;
+};
+
+/**
+ * MetaMonitorInfo:
+ *
+ * A structure with high-level information about monitors.
+ * This corresponds to a subset of the compositor coordinate space.
+ * Clones are only reported once, irrespective of the way
+ * they're implemented (two CRTCs configured for the same
+ * coordinates or one CRTCs driving two outputs). Inactive CRTCs
+ * are ignored, and so are disabled outputs.
+ */
+struct _MetaMonitorInfo
+{
+  int number;
+  int xinerama_index;
+  MetaRectangle rect;
+  gboolean is_primary;
+  gboolean is_presentation; /* XXX: not yet used */
+  gboolean in_fullscreen;
+
+  /* The primary or first output for this monitor, 0 if we can't figure out.
+     It can be matched to an output_id of a MetaOutput.
+
+     This is used as an opaque token on reconfiguration when switching from
+     clone to extened, to decide on what output the windows should go next
+     (it's an attempt to keep windows on the same monitor, and preferably on
+     the primary one).
+  */
+  glong output_id;
+};
+
+/*
+ * MetaCRTCInfo:
+ * This represents the writable part of a CRTC, as deserialized from DBus
+ * or built by MetaMonitorConfig
+ *
+ * Note: differently from the other structures in this file, MetaCRTCInfo
+ * is handled by pointer. This is to accomodate the usage in MetaMonitorConfig
+ */
+struct _MetaCRTCInfo {
+  MetaCRTC                 *crtc;
+  MetaMonitorMode          *mode;
+  int                       x;
+  int                       y;
+  enum wl_output_transform  transform;
+  GPtrArray                *outputs;
+};
+
+/*
+ * MetaOutputInfo:
+ * this is the same as MetaOutputInfo, but for CRTCs
+ */
+struct _MetaOutputInfo {
+  MetaOutput  *output;
+  gboolean     is_primary;
+  gboolean     is_presentation;
+};
+
+#define META_TYPE_MONITOR_MANAGER            (meta_monitor_manager_get_type ())
+#define META_MONITOR_MANAGER(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_MONITOR_MANAGER, MetaMonitorManager))
+#define META_MONITOR_MANAGER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_MONITOR_MANAGER, MetaMonitorManagerClass))
+#define META_IS_MONITOR_MANAGER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_MONITOR_MANAGER))
+#define META_IS_MONITOR_MANAGER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_MONITOR_MANAGER))
+#define META_MONITOR_MANAGER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_MONITOR_MANAGER, MetaMonitorManagerClass))
+
+struct _MetaMonitorManager
+{
+  MetaDBusDisplayConfigSkeleton parent_instance;
+
+  /* XXX: this structure is very badly
+     packed, but I like the logical organization
+     of fields */
+
+  gboolean in_init;
+  unsigned int serial;
+
+  MetaPowerSave power_save_mode;
+
+  int max_screen_width;
+  int max_screen_height;
+  int screen_width;
+  int screen_height;
+
+  /* Outputs refer to physical screens,
+     CRTCs refer to stuff that can drive outputs
+     (like encoders, but less tied to the HW),
+     while monitor_infos refer to logical ones.
+
+     See also the comment in monitor-private.h
+  */
+  MetaOutput *outputs;
+  unsigned int n_outputs;
+
+  MetaMonitorMode *modes;
+  unsigned int n_modes;
+
+  MetaCRTC *crtcs;
+  unsigned int n_crtcs;
+
+  MetaMonitorInfo *monitor_infos;
+  unsigned int n_monitor_infos;
+  int primary_monitor_index;
+
+  int dbus_name_id;
+
+  int persistent_timeout_id;
+  MetaMonitorConfig *config;
+
+  GnomePnpIds *pnp_ids;
+};
+
+struct _MetaMonitorManagerClass
+{
+  MetaDBusDisplayConfigSkeletonClass parent_class;
+
+  void (*read_current) (MetaMonitorManager *);
+
+  char* (*get_edid_file) (MetaMonitorManager *,
+                          MetaOutput         *);
+  GBytes* (*read_edid) (MetaMonitorManager *,
+                        MetaOutput         *);
+
+  void (*apply_configuration) (MetaMonitorManager  *,
+                               MetaCRTCInfo       **,
+                               unsigned int         ,
+                               MetaOutputInfo     **,
+                               unsigned int);
+
+  void (*set_power_save_mode) (MetaMonitorManager *,
+                               MetaPowerSave);
+
+  void (*change_backlight) (MetaMonitorManager *,
+                            MetaOutput         *,
+                            int);
+
+  void (*get_crtc_gamma) (MetaMonitorManager  *,
+                          MetaCRTC            *,
+                          gsize               *,
+                          unsigned short     **,
+                          unsigned short     **,
+                          unsigned short     **);
+  void (*set_crtc_gamma) (MetaMonitorManager *,
+                          MetaCRTC           *,
+                          gsize               ,
+                          unsigned short     *,
+                          unsigned short     *,
+                          unsigned short     *);
+
+  gboolean (*handle_xevent) (MetaMonitorManager *,
+                             XEvent             *);
+};
+
+GType meta_monitor_manager_get_type (void);
+
+void                meta_monitor_manager_initialize (void);
+MetaMonitorManager *meta_monitor_manager_get  (void);
+
+void                meta_monitor_manager_rebuild_derived   (MetaMonitorManager *manager);
+
+MetaMonitorInfo    *meta_monitor_manager_get_monitor_infos (MetaMonitorManager *manager,
+							    unsigned int       *n_infos);
+
+MetaOutput         *meta_monitor_manager_get_outputs       (MetaMonitorManager *manager,
+							    unsigned int       *n_outputs);
+
+void                meta_monitor_manager_get_resources     (MetaMonitorManager  *manager,
+                                                            MetaMonitorMode    **modes,
+                                                            unsigned int        *n_modes,
+                                                            MetaCRTC           **crtcs,
+                                                            unsigned int        *n_crtcs,
+                                                            MetaOutput         **outputs,
+                                                            unsigned int        *n_outputs);
+
+int                 meta_monitor_manager_get_primary_index (MetaMonitorManager *manager);
+
+gboolean            meta_monitor_manager_handle_xevent     (MetaMonitorManager *manager,
+                                                            XEvent             *event);
+
+void                meta_monitor_manager_get_screen_size   (MetaMonitorManager *manager,
+                                                            int                *width,
+                                                            int                *height);
+
+void                meta_monitor_manager_get_screen_limits (MetaMonitorManager *manager,
+                                                            int                *width,
+                                                            int                *height);
+
+void                meta_monitor_manager_apply_configuration (MetaMonitorManager  *manager,
+                                                              MetaCRTCInfo       **crtcs,
+                                                              unsigned int         n_crtcs,
+                                                              MetaOutputInfo     **outputs,
+                                                              unsigned int         n_outputs);
+
+void                meta_monitor_manager_confirm_configuration (MetaMonitorManager *manager,
+                                                                gboolean            ok);
+
+#define META_TYPE_MONITOR_MANAGER_XRANDR            (meta_monitor_manager_xrandr_get_type ())
+#define META_MONITOR_MANAGER_XRANDR(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_MONITOR_MANAGER_XRANDR, MetaMonitorManagerXrandr))
+#define META_MONITOR_MANAGER_XRANDR_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_MONITOR_MANAGER_XRANDR, MetaMonitorManagerXrandrClass))
+#define META_IS_MONITOR_MANAGER_XRANDR(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_MONITOR_MANAGER_XRANDR))
+#define META_IS_MONITOR_MANAGER_XRANDR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_MONITOR_MANAGER_XRANDR))
+#define META_MONITOR_MANAGER_XRANDR_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_MONITOR_MANAGER_XRANDR, MetaMonitorManagerXrandrClass))
+
+typedef struct _MetaMonitorManagerXrandrClass    MetaMonitorManagerXrandrClass;
+typedef struct _MetaMonitorManagerXrandr         MetaMonitorManagerXrandr;
+
+GType meta_monitor_manager_xrandr_get_type (void);
+
+#define META_TYPE_MONITOR_MANAGER_KMS            (meta_monitor_manager_kms_get_type ())
+#define META_MONITOR_MANAGER_KMS(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_MONITOR_MANAGER_KMS, MetaMonitorManagerKms))
+#define META_MONITOR_MANAGER_KMS_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_MONITOR_MANAGER_KMS, MetaMonitorManagerKmsClass))
+#define META_IS_MONITOR_MANAGER_KMS(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_MONITOR_MANAGER_KMS))
+#define META_IS_MONITOR_MANAGER_KMS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_MONITOR_MANAGER_KMS))
+#define META_MONITOR_MANAGER_KMS_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_MONITOR_MANAGER_KMS, MetaMonitorManagerKmsClass))
+
+typedef struct _MetaMonitorManagerKmsClass    MetaMonitorManagerKmsClass;
+typedef struct _MetaMonitorManagerKms         MetaMonitorManagerKms;
+
+GType meta_monitor_manager_kms_get_type (void);
+
+#define META_TYPE_MONITOR_CONFIG            (meta_monitor_config_get_type ())
+#define META_MONITOR_CONFIG(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_MONITOR_CONFIG, MetaMonitorConfig))
+#define META_MONITOR_CONFIG_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_MONITOR_CONFIG, MetaMonitorConfigClass))
+#define META_IS_MONITOR_CONFIG(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_MONITOR_CONFIG))
+#define META_IS_MONITOR_CONFIG_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_MONITOR_CONFIG))
+#define META_MONITOR_CONFIG_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_MONITOR_CONFIG, MetaMonitorConfigClass))
+
+GType meta_monitor_config_get_type (void) G_GNUC_CONST;
+
+MetaMonitorConfig *meta_monitor_config_new (void);
+
+gboolean           meta_monitor_config_match_current (MetaMonitorConfig  *config,
+                                                      MetaMonitorManager *manager);
+
+gboolean           meta_monitor_config_apply_stored (MetaMonitorConfig  *config,
+                                                     MetaMonitorManager *manager);
+
+void               meta_monitor_config_make_default (MetaMonitorConfig  *config,
+                                                     MetaMonitorManager *manager);
+
+void               meta_monitor_config_update_current (MetaMonitorConfig  *config,
+                                                       MetaMonitorManager *manager);
+void               meta_monitor_config_make_persistent (MetaMonitorConfig *config);
+
+void               meta_monitor_config_restore_previous (MetaMonitorConfig  *config,
+                                                         MetaMonitorManager *manager);
+
+void               meta_crtc_info_free   (MetaCRTCInfo   *info);
+void               meta_output_info_free (MetaOutputInfo *info);
+
+void               meta_monitor_manager_free_output_array (MetaOutput *old_outputs,
+                                                           int         n_old_outputs);
+void               meta_monitor_manager_free_mode_array (MetaMonitorMode *old_modes,
+                                                         int              n_old_modes);
+
+/* Returns true if transform causes width and height to be inverted
+   This is true for the odd transforms in the enum */
+static inline gboolean
+meta_monitor_transform_is_rotated (enum wl_output_transform transform)
+{
+  return (transform % 2);
+}
+
+#endif

src/core/screen-private.h

@@ -38,17 +38,7 @@
 #include <X11/Xutil.h>
 #include "stack-tracker.h"
 #include "ui.h"
-
-typedef struct _MetaMonitorInfo MetaMonitorInfo;
-
-struct _MetaMonitorInfo
-{
-  int number;
-  MetaRectangle rect;
-  gboolean is_primary;
-  gboolean in_fullscreen;
-  XID output; /* The primary or first output for this crtc, None if no xrandr */
-};
+#include "monitor-private.h"
 
 typedef void (* MetaScreenWindowFunc) (MetaScreen *screen, MetaWindow *window,
                                        gpointer user_data);
@@ -101,10 +91,11 @@ struct _MetaScreen
   Window wm_sn_selection_window;
   Atom wm_sn_atom;
   guint32 wm_sn_timestamp;
-  
+
   MetaMonitorInfo *monitor_infos;
-  int primary_monitor_index;
   int n_monitor_infos;
+  int primary_monitor_index;
+  gboolean has_xinerama_indices;
 
   /* Cache the current monitor */
   int last_monitor_index;
@@ -232,10 +223,6 @@ void meta_screen_calc_workspace_layout (MetaScreen          *screen,
                                         MetaWorkspaceLayout *layout);
 void meta_screen_free_workspace_layout (MetaWorkspaceLayout *layout);
 
-void meta_screen_resize (MetaScreen *screen,
-                         int         width,
-                         int         height);
-
 void     meta_screen_minimize_all_on_active_workspace_except (MetaScreen *screen,
                                                               MetaWindow *keep);
 
@@ -263,4 +250,9 @@ Window   meta_screen_create_guard_window (Display *xdisplay, MetaScreen *screen)
 gboolean meta_screen_handle_xevent (MetaScreen *screen,
                                     XEvent     *xevent);
 
+int meta_screen_xinerama_index_to_monitor_index (MetaScreen *screen,
+                                                 int         index);
+int meta_screen_monitor_index_to_xinerama_index (MetaScreen *screen,
+                                                 int         index);
+
 #endif

src/core/screen.c

@@ -50,10 +50,6 @@
 
 #include <X11/extensions/Xinerama.h>
 
-#ifdef HAVE_RANDR
-#include <X11/extensions/Xrandr.h>
-#endif
-
 #include <X11/Xatom.h>
 #include <locale.h>
 #include <string.h>
@@ -78,6 +74,9 @@ static void meta_screen_sn_event   (SnMonitorEvent *event,
                                     void           *user_data);
 #endif
 
+static void on_monitors_changed (MetaMonitorManager *manager,
+                                 MetaScreen         *screen);
+
 enum
 {
   PROP_N_WORKSPACES = 1,
@@ -352,250 +351,93 @@ set_wm_icon_size_hint (MetaScreen *screen)
 #undef N_VALS
 }
 
-/* The list of monitors reported by the windowing system might include
- * mirrored monitors with identical bounds. Since mirrored monitors
- * shouldn't be treated as separate monitors for most purposes, we
- * filter them out here. (We ignore the possibility of partially
- * overlapping monitors because they are rare and it's hard to come
- * up with any sensible interpretation.)
- */
 static void
-filter_mirrored_monitors (MetaScreen *screen)
+meta_screen_ensure_xinerama_indices (MetaScreen *screen)
 {
-  int i, j;
+  XineramaScreenInfo *infos;
+  int n_infos, i, j;
 
-  /* Currently always true and simplifies things */
-  g_assert (screen->primary_monitor_index == 0);
+  if (screen->has_xinerama_indices)
+    return;
 
-  for (i = 1; i < screen->n_monitor_infos; i++)
+  screen->has_xinerama_indices = TRUE;
+
+  if (!XineramaIsActive (screen->display->xdisplay))
+    return;
+
+  infos = XineramaQueryScreens (screen->display->xdisplay, &n_infos);
+  if (n_infos <= 0 || infos == NULL)
     {
-      /* In case we've filtered previous monitors */
-      screen->monitor_infos[i].number = i;
+      meta_XFree (infos);
+      return;
+    }
 
-      for (j = 0; j < i; j++)
+  for (i = 0; i < screen->n_monitor_infos; ++i)
+    {
+      for (j = 0; j < n_infos; ++j)
         {
-          if (meta_rectangle_equal (&screen->monitor_infos[i].rect,
-                                    &screen->monitor_infos[j].rect))
-            {
-              memmove (&screen->monitor_infos[i],
-                       &screen->monitor_infos[i + 1],
-                       (screen->n_monitor_infos - i - 1) * sizeof (MetaMonitorInfo));
-              screen->n_monitor_infos--;
-              i--;
-
-              continue;
-            }
+          if (screen->monitor_infos[i].rect.x == infos[j].x_org &&
+	      screen->monitor_infos[i].rect.y == infos[j].y_org &&
+	      screen->monitor_infos[i].rect.width == infos[j].width &&
+	      screen->monitor_infos[i].rect.height == infos[j].height)
+            screen->monitor_infos[i].xinerama_index = j;
         }
     }
+
+  meta_XFree (infos);
 }
 
-#ifdef HAVE_RANDR
-static MetaMonitorInfo *
-find_monitor_with_rect (MetaScreen *screen, int x, int y, int w, int h)
+int
+meta_screen_monitor_index_to_xinerama_index (MetaScreen *screen,
+                                             int         index)
+{
+  meta_screen_ensure_xinerama_indices (screen);
+
+  return screen->monitor_infos[index].xinerama_index;
+}
+
+int
+meta_screen_xinerama_index_to_monitor_index (MetaScreen *screen,
+                                             int         index)
 {
-  MetaMonitorInfo *info;
   int i;
 
+  meta_screen_ensure_xinerama_indices (screen);
+
   for (i = 0; i < screen->n_monitor_infos; i++)
-    {
-      info = &screen->monitor_infos[i];
-      if (x == info->rect.x &&
-          y == info->rect.y &&
-          w == info->rect.width &&
-          h == info->rect.height)
-        return info;
-    }
-  return NULL;
+    if (screen->monitor_infos[i].xinerama_index == index)
+      return i;
+
+  return -1;
 }
 
-/* In the case of multiple outputs of a single crtc (mirroring), we consider one of the
- * outputs the "main". This is the one we consider "owning" the windows, so if
- * the mirroring is changed to a dual monitor setup then the windows are moved to the
- * crtc that now has that main output. If one of the outputs is the primary that is
- * always the main, otherwise we just use the first.
- */
-static XID
-find_main_output_for_crtc (MetaScreen *screen, XRRScreenResources *resources, XRRCrtcInfo *crtc)
-{
-  XRROutputInfo *output;
-  RROutput primary_output;
-  int i;
-  XID res;
-
-  primary_output = XRRGetOutputPrimary (screen->display->xdisplay, screen->xroot);
-
-  res = None;
-  for (i = 0; i < crtc->noutput; i++)
-    {
-      output = XRRGetOutputInfo (screen->display->xdisplay, resources, crtc->outputs[i]);
-      if (output->connection != RR_Disconnected &&
-          (res == None || crtc->outputs[i] == primary_output))
-        res = crtc->outputs[i];
-      XRRFreeOutputInfo (output);
-    }
-
-  return res;
-}
-
-#endif
-
 static void
 reload_monitor_infos (MetaScreen *screen)
 {
-  MetaDisplay *display;
+  GList *tmp;
+  MetaMonitorManager *manager;
 
-  {
-    GList *tmp;
+  tmp = screen->workspaces;
+  while (tmp != NULL)
+    {
+      MetaWorkspace *space = tmp->data;
 
-    tmp = screen->workspaces;
-    while (tmp != NULL)
-      {
-        MetaWorkspace *space = tmp->data;
+      meta_workspace_invalidate_work_area (space);
+      
+      tmp = tmp->next;
+    }
 
-        meta_workspace_invalidate_work_area (space);
-        
-        tmp = tmp->next;
-      }
-  }
+  /* Any previous screen->monitor_infos or screen->outputs is freed by the caller */
 
-  display = screen->display;
-
-  /* Any previous screen->monitor_infos is freed by the caller */
-
-  screen->monitor_infos = NULL;
-  screen->n_monitor_infos = 0;
   screen->last_monitor_index = 0;
-
-  /* Xinerama doesn't have a concept of primary monitor, however XRandR
-   * does. However, the XRandR xinerama compat code always sorts the
-   * primary output first, so we rely on that here. We could use the
-   * native XRandR calls instead of xinerama, but that would be
-   * slightly problematic for _NET_WM_FULLSCREEN_MONITORS support, as
-   * that is defined in terms of xinerama monitor indexes.
-   * So, since we don't need anything in xrandr except the primary
-   * we can keep using xinerama and use the first monitor as the
-   * primary.
-   */
-  screen->primary_monitor_index = 0;
-
+  screen->has_xinerama_indices = FALSE;
   screen->display->monitor_cache_invalidated = TRUE;
 
-  if (g_getenv ("MUTTER_DEBUG_XINERAMA"))
-    {
-      meta_topic (META_DEBUG_XINERAMA,
-                  "Pretending a single monitor has two Xinerama screens\n");
+  manager = meta_monitor_manager_get ();
 
-      screen->monitor_infos = g_new0 (MetaMonitorInfo, 2);
-      screen->n_monitor_infos = 2;
-
-      screen->monitor_infos[0].number = 0;
-      screen->monitor_infos[0].rect = screen->rect;
-      screen->monitor_infos[0].rect.width = screen->rect.width / 2;
-      screen->monitor_infos[0].in_fullscreen = -1;
-
-      screen->monitor_infos[1].number = 1;
-      screen->monitor_infos[1].rect = screen->rect;
-      screen->monitor_infos[1].rect.x = screen->rect.width / 2;
-      screen->monitor_infos[1].rect.width = screen->rect.width / 2;
-      screen->monitor_infos[0].in_fullscreen = -1;
-    }
-
-  if (screen->n_monitor_infos == 0 &&
-      XineramaIsActive (display->xdisplay))
-    {
-      XineramaScreenInfo *infos;
-      int n_infos;
-      int i;
-      
-      n_infos = 0;
-      infos = XineramaQueryScreens (display->xdisplay, &n_infos);
-
-      meta_topic (META_DEBUG_XINERAMA,
-                  "Found %d Xinerama screens on display %s\n",
-                  n_infos, display->name);
-
-      if (n_infos > 0)
-        {
-          screen->monitor_infos = g_new0 (MetaMonitorInfo, n_infos);
-          screen->n_monitor_infos = n_infos;
-          
-          i = 0;
-          while (i < n_infos)
-            {
-              screen->monitor_infos[i].number = infos[i].screen_number;
-              screen->monitor_infos[i].rect.x = infos[i].x_org;
-              screen->monitor_infos[i].rect.y = infos[i].y_org;
-              screen->monitor_infos[i].rect.width = infos[i].width;
-              screen->monitor_infos[i].rect.height = infos[i].height;
-              screen->monitor_infos[i].in_fullscreen = -1;
-
-              meta_topic (META_DEBUG_XINERAMA,
-                          "Monitor %d is %d,%d %d x %d\n",
-                          screen->monitor_infos[i].number,
-                          screen->monitor_infos[i].rect.x,
-                          screen->monitor_infos[i].rect.y,
-                          screen->monitor_infos[i].rect.width,
-                          screen->monitor_infos[i].rect.height);
-              
-              ++i;
-            }
-        }
-      
-      meta_XFree (infos);
-
-#ifdef HAVE_RANDR
-      {
-        XRRScreenResources *resources;
-
-        resources = XRRGetScreenResourcesCurrent (display->xdisplay, screen->xroot);
-        if (resources)
-          {
-            for (i = 0; i < resources->ncrtc; i++)
-              {
-                XRRCrtcInfo *crtc;
-                MetaMonitorInfo *info;
-
-                crtc = XRRGetCrtcInfo (display->xdisplay, resources, resources->crtcs[i]);
-                info = find_monitor_with_rect (screen, crtc->x, crtc->y, (int)crtc->width, (int)crtc->height);
-                if (info)
-                  info->output = find_main_output_for_crtc (screen, resources, crtc);
-
-                XRRFreeCrtcInfo (crtc);
-              }
-            XRRFreeScreenResources (resources);
-          }
-      }
-#endif
-    }
-  else if (screen->n_monitor_infos > 0)
-    {
-      meta_topic (META_DEBUG_XINERAMA,
-                  "No Xinerama extension or Xinerama inactive on display %s\n",
-                  display->name);
-    }
-
-  /* If no Xinerama, fill in the single screen info so
-   * we can use the field unconditionally
-   */
-  if (screen->n_monitor_infos == 0)
-    {
-      meta_topic (META_DEBUG_XINERAMA,
-                  "No Xinerama screens, using default screen info\n");
-          
-      screen->monitor_infos = g_new0 (MetaMonitorInfo, 1);
-      screen->n_monitor_infos = 1;
-          
-      screen->monitor_infos[0].number = 0;
-      screen->monitor_infos[0].rect = screen->rect;
-      screen->monitor_infos[0].in_fullscreen = -1;
-    }
-
-  filter_mirrored_monitors (screen);
-
-  screen->monitor_infos[screen->primary_monitor_index].is_primary = TRUE;
-
-  g_assert (screen->n_monitor_infos > 0);
-  g_assert (screen->monitor_infos != NULL);
+  screen->monitor_infos = meta_monitor_manager_get_monitor_infos (manager,
+                                                                  (unsigned*)&screen->n_monitor_infos);
+  screen->primary_monitor_index = meta_monitor_manager_get_primary_index (manager);
 }
 
 /* The guard window allows us to leave minimized windows mapped so
@@ -673,7 +515,7 @@ meta_screen_new (MetaDisplay *display,
   char buf[128];
   guint32 manager_timestamp;
   gulong current_workspace;
-  MetaWaylandCompositor *compositor;
+  MetaMonitorManager *manager;
   
   replace_current_wm = meta_get_replace_current_wm ();
   
@@ -832,18 +674,17 @@ meta_screen_new (MetaDisplay *display,
   screen->xscreen = ScreenOfDisplay (xdisplay, number);
   screen->xroot = xroot;
   screen->rect.x = screen->rect.y = 0;
-  
-  if (meta_is_wayland_compositor ())
-    {
-      compositor = meta_wayland_compositor_get_default ();
-      screen->rect.width = clutter_actor_get_width (compositor->stage);
-      screen->rect.height = clutter_actor_get_height (compositor->stage);
-    }
-  else
-    {
-      screen->rect.width = WidthOfScreen (screen->xscreen);
-      screen->rect.height = HeightOfScreen (screen->xscreen);
-    }
+
+  if (!meta_is_wayland_compositor ())
+    meta_monitor_manager_initialize ();
+
+  manager = meta_monitor_manager_get ();
+  g_signal_connect (manager, "monitors-changed",
+                    G_CALLBACK (on_monitors_changed), screen);
+
+  meta_monitor_manager_get_screen_size (manager,
+                                        &screen->rect.width,
+                                        &screen->rect.height);
 
   screen->current_cursor = -1; /* invalid/unset */
   screen->default_xvisual = DefaultVisualOfScreen (screen->xscreen);
@@ -869,10 +710,6 @@ meta_screen_new (MetaDisplay *display,
   screen->compositor_data = NULL;
   screen->guard_window = None;
 
-  screen->monitor_infos = NULL;
-  screen->n_monitor_infos = 0;
-  screen->last_monitor_index = 0;  
-  
   reload_monitor_infos (screen);
 
   meta_cursor_tracker_get_for_screen (screen);
@@ -959,7 +796,7 @@ meta_screen_new (MetaDisplay *display,
 
   meta_verbose ("Added screen %d ('%s') root 0x%lx\n",
                 screen->number, screen->screen_name, screen->xroot);
-  
+
   return screen;
 }
 
@@ -3007,19 +2844,15 @@ meta_screen_resize_func (MetaScreen *screen,
   meta_window_recalc_features (window);
 }
 
-void
-meta_screen_resize (MetaScreen *screen,
-                    int         width,
-                    int         height)
+static void
+on_monitors_changed (MetaMonitorManager *manager,
+                     MetaScreen         *screen)
 {
-  GSList *windows, *tmp;
-  MetaMonitorInfo *old_monitor_infos;
+  GSList *tmp, *windows;
 
-  screen->rect.width = width;
-  screen->rect.height = height;
-
-  /* Save the old monitor infos, so they stay valid during the update */
-  old_monitor_infos = screen->monitor_infos;
+  meta_monitor_manager_get_screen_size (manager,
+                                        &screen->rect.width,
+                                        &screen->rect.height);
 
   reload_monitor_infos (screen);
   set_desktop_geometry_hint (screen);
@@ -3031,8 +2864,8 @@ meta_screen_resize (MetaScreen *screen,
 
       changes.x = 0;
       changes.y = 0;
-      changes.width = width;
-      changes.height = height;
+      changes.width = screen->rect.width;
+      changes.height = screen->rect.height;
 
       XConfigureWindow(screen->display->xdisplay,
                        screen->guard_window,
@@ -3042,7 +2875,8 @@ meta_screen_resize (MetaScreen *screen,
 
   if (screen->display->compositor)
     meta_compositor_sync_screen_size (screen->display->compositor,
-				      screen, width, height);
+				      screen,
+                                      screen->rect.width, screen->rect.height);
 
   /* Queue a resize on all the windows */
   meta_screen_foreach_window (screen, meta_screen_resize_func, 0);
@@ -3058,7 +2892,6 @@ meta_screen_resize (MetaScreen *screen,
         meta_window_update_for_monitors_changed (window);
     }
 
-  g_free (old_monitor_infos);
   g_slist_free (windows);
 
   meta_screen_queue_check_fullscreen (screen);

src/core/session.c

@@ -25,6 +25,8 @@
 
 #include <config.h>
 
+#include <meta/util.h>
+#include <meta/main.h>
 #include "session.h"
 #include <X11/Xatom.h>
 
@@ -531,6 +533,12 @@ die_callback (SmcConn smc_conn, SmPointer client_data)
    * Anything that wants us to go away outside of session management
    * can use kill().
    */
+
+  /* All of that is true - unless we're a wayland compositor. In which
+   * case the X server won't go down until we do, so we must die first.
+   */
+  if (meta_is_wayland_compositor ())
+    meta_quit (0);
 }
 
 static void

src/core/stack-tracker.c

@@ -1051,7 +1051,6 @@ stack_tracker_event_received (MetaStackTracker *tracker,
 
   tracker->xserver_serial = op->any.serial;
 
-#warning "TODO: remove unused tracker->xserver_stack"
   /* XXX: With the design we have ended up with it looks like we've
    * ended up making it unnecessary to maintain tracker->xserver_stack
    * since we only need an xserver_stack during the

src/core/util.c

@@ -345,6 +345,8 @@ topic_name (MetaDebugTopic topic)
       return "COMPOSITOR";
     case META_DEBUG_EDGE_RESISTANCE:
       return "EDGE_RESISTANCE";
+    case META_DEBUG_DBUS:
+      return "DBUS";
     case META_DEBUG_VERBOSE:
       return "VERBOSE";
     }
@@ -650,8 +652,13 @@ meta_show_dialog (const char *type,
 
   append_argument (args, "zenity");
   append_argument (args, type);
-  append_argument (args, "--display");
-  append_argument (args, display);
+
+  if (display)
+    {
+      append_argument (args, "--display");
+      append_argument (args, display);
+    }
+
   append_argument (args, "--class");
   append_argument (args, "mutter-dialog");
   append_argument (args, "--title");

src/core/window-private.h

@@ -44,15 +44,8 @@
 #include <X11/Xutil.h>
 #include <cairo.h>
 #include <gdk-pixbuf/gdk-pixbuf.h>
-#include "meta-wayland-private.h"
-
-/* XXX: We should find a nicer approach to deal with the
- * circular dependency we have with the current headers
- * (meta-wayland-private.h which typedefs MetaWaylandSurface
- *  also includes window-private.h) */
-#ifndef HAVE_META_WAYLAND_SURFACE_TYPE
-typedef struct _MetaWaylandSurface MetaWaylandSurface;
-#endif
+#include <clutter/clutter.h>
+#include "meta-wayland-types.h"
 
 typedef struct _MetaWindowQueue MetaWindowQueue;
 
@@ -135,6 +128,7 @@ struct _MetaWindow
   Window xtransient_for;
   Window xgroup_leader;
   Window xclient_leader;
+  MetaWindow *transient_for;
 
   /* Initial workspace property */
   int initial_workspace;  
@@ -179,7 +173,7 @@ struct _MetaWindow
    * been overridden (via a client message), the window will cover the union of
    * these monitors.  If not, this is the single monitor which the window's
    * origin is on. */
-  long fullscreen_monitors[4];
+  gint fullscreen_monitors[4];
   
   /* Whether we're trying to constrain the window to be fully onscreen */
   guint require_fully_onscreen : 1;
@@ -339,11 +333,6 @@ struct _MetaWindow
   guint using_net_wm_icon_name         : 1; /* vs. plain wm_icon_name */
   guint using_net_wm_visible_icon_name : 1; /* tracked so we can clear it */
 
-  /* has a bounding shape mask */
-  guint has_shape : 1;
-  /* has an input shape mask */
-  guint has_input_shape : 1;
-
   /* icon props have changed */
   guint need_reread_icon : 1;
   
@@ -365,9 +354,15 @@ struct _MetaWindow
   /* if non-NULL, the bounds of the window frame */
   cairo_region_t *frame_bounds;
 
+  /* if non-NULL, the bounding shape region of the window */
+  cairo_region_t *shape_region;
+
   /* 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;
+
   /* if TRUE, the we have the new form of sync request counter which
    * also handles application frames */
   guint extended_sync_request_counter : 1;
@@ -410,6 +405,12 @@ struct _MetaWindow
    */
   MetaRectangle rect;
 
+  /* The size we want the window to be (i.e. what we last asked
+   * the client to configure).
+   * This is only used for wayland clients.
+   */
+  MetaRectangle expected_rect;
+
   gboolean has_custom_frame_extents;
   GtkBorder custom_frame_extents;
 
@@ -607,6 +608,11 @@ void     meta_window_move_resize_request(MetaWindow *window,
                                          int         y,
                                          int         width,
                                          int         height);
+void     meta_window_move_resize_wayland (MetaWindow *window,
+                                          int         width,
+                                          int         height,
+                                          int         dx,
+                                          int         dy);
 gboolean meta_window_configure_request (MetaWindow *window,
                                         XEvent     *event);
 gboolean meta_window_property_notify   (MetaWindow *window,
@@ -637,8 +643,8 @@ void meta_window_update_sync_request_counter (MetaWindow *window,
                                               gint64      new_counter_value);
 #endif /* HAVE_XSYNC */
 
-void meta_window_handle_mouse_grab_op_event (MetaWindow *window,
-                                             XIDeviceEvent *xev);
+void meta_window_handle_mouse_grab_op_event (MetaWindow         *window,
+                                             const ClutterEvent *event);
 
 GList* meta_window_get_workspaces (MetaWindow *window);
 
@@ -685,7 +691,6 @@ void meta_window_update_icon_now (MetaWindow *window);
 
 void meta_window_update_role (MetaWindow *window);
 void meta_window_update_net_wm_type (MetaWindow *window);
-void meta_window_update_opaque_region (MetaWindow *window);
 void meta_window_update_for_monitors_changed (MetaWindow *window);
 void meta_window_update_on_all_workspaces (MetaWindow *window);
 
@@ -699,4 +704,32 @@ void meta_window_compute_tile_match (MetaWindow *window);
 
 gboolean meta_window_updates_are_frozen (MetaWindow *window);
 
+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_title                (MetaWindow *window,
+                                           const char *title);
+void meta_window_set_wm_class             (MetaWindow *window,
+                                           const char *wm_class,
+                                           const char *wm_instance);
+void meta_window_set_gtk_dbus_properties  (MetaWindow *window,
+                                           const char *application_id,
+                                           const char *unique_bus_name,
+                                           const char *appmenu_path,
+                                           const char *menubar_path,
+                                           const char *application_object_path,
+                                           const char *window_object_path);
+
+void meta_window_set_transient_for        (MetaWindow *window,
+                                           MetaWindow *parent);
+
 #endif

src/core/window-props.c

@@ -489,28 +489,19 @@ static void
 set_window_title (MetaWindow *window,
                   const char *title)
 {
-  char *str;
+  char *new_title = NULL;
  
   gboolean modified =
     set_title_text (window,
                     window->using_net_wm_visible_name,
                     title,
                     window->display->atom__NET_WM_VISIBLE_NAME,
-                    &window->title);
+                    &new_title);
   window->using_net_wm_visible_name = modified;
   
-  /* strndup is a hack since GNU libc has broken %.10s */
-  str = g_strndup (window->title, 10);
-  g_free (window->desc);
-  window->desc = g_strdup_printf ("0x%lx (%s)", window->xwindow, str);
-  g_free (str);
+  meta_window_set_title (window, new_title);
 
-  if (window->frame)
-    meta_ui_set_frame_title (window->screen->ui,
-                             window->frame->xwindow,
-                             window->title);
-
-  g_object_notify (G_OBJECT (window), "title");
+  g_free (new_title);
 }
 
 static void
@@ -565,7 +556,7 @@ reload_opaque_region (MetaWindow    *window,
                       MetaPropValue *value,
                       gboolean       initial)
 {
-  meta_window_update_opaque_region (window);
+  meta_window_update_opaque_region_x11 (window);
 }
 
 static void
@@ -875,23 +866,15 @@ reload_wm_class (MetaWindow    *window,
                  MetaPropValue *value,
                  gboolean       initial)
 {
-  if (window->res_class)
-    g_free (window->res_class);
-  if (window->res_name)
-    g_free (window->res_name);
-
-  window->res_class = NULL;
-  window->res_name = NULL;
-
   if (value->type != META_PROP_VALUE_INVALID)
-    { 
-      if (value->v.class_hint.res_name)
-        window->res_name = g_strdup (value->v.class_hint.res_name);
-
-      if (value->v.class_hint.res_class)
-        window->res_class = g_strdup (value->v.class_hint.res_class);
-
-      g_object_notify (G_OBJECT (window), "wm-class");
+    {
+      meta_window_set_wm_class (window,
+                                value->v.class_hint.res_class,
+                                value->v.class_hint.res_name);
+    }
+  else
+    {
+      meta_window_set_wm_class (window, NULL, NULL);
     }
 
   meta_verbose ("Window %s class: '%s' name: '%s'\n",
@@ -1571,9 +1554,6 @@ reload_transient_for (MetaWindow    *window,
   if (transient_for == window->xtransient_for)
     return;
 
-  if (meta_window_appears_focused (window) && window->xtransient_for != None)
-    meta_window_propagate_focus_appearance (window, FALSE);
-
   old_transient_for = window->xtransient_for;
   window->xtransient_for = transient_for;
 
@@ -1586,46 +1566,14 @@ reload_transient_for (MetaWindow    *window,
   else
     meta_verbose ("Window %s is not transient\n", window->desc);
 
-  /* may now be a dialog */
-  meta_window_recalc_window_type (window);
-
-  if (!window->constructing)
+  if (window->transient_parent_is_root_window || window->xtransient_for == None)
+    meta_window_set_transient_for (window, NULL);
+  else
     {
-      /* If the window attaches, detaches, or changes attached
-       * parents, we need to destroy the MetaWindow and let a new one
-       * be created (which happens as a side effect of
-       * meta_window_unmanage()). The condition below is correct
-       * because we know window->xtransient_for has changed.
-       */
-      if (window->attached || meta_window_should_attach_to_parent (window))
-        {
-          guint32 timestamp;
-
-          window->xtransient_for = old_transient_for;
-          timestamp = meta_display_get_current_time_roundtrip (window->display);
-          meta_window_unmanage (window, timestamp);
-          return;
-        }
+      parent = meta_display_lookup_x_window (window->display,
+                                             window->xtransient_for);
+      meta_window_set_transient_for (window, parent);
     }
-
-  /* update stacking constraints */
-  if (!window->override_redirect)
-    meta_stack_update_transient (window->screen->stack, window);
-
-  /* possibly change its group. We treat being a window's transient as
-   * equivalent to making it your group leader, to work around shortcomings
-   * in programs such as xmms-- see #328211.
-   */
-  if (window->xtransient_for != None &&
-      window->xgroup_leader != None &&
-      window->xtransient_for != window->xgroup_leader)
-    meta_window_group_leader_changed (window);
-
-  if (!window->constructing && !window->override_redirect)
-    meta_window_queue (window, META_QUEUE_MOVE_RESIZE);
-
-  if (meta_window_appears_focused (window) && window->xtransient_for != None)
-    meta_window_propagate_focus_appearance (window, TRUE);
 }
 
 static void

src/core/xprops.c

@@ -536,6 +536,81 @@ meta_prop_get_utf8_list (MetaDisplay   *display,
   return utf8_list_from_results (&results, str_p, n_str_p);
 }
 
+/* this one freakishly returns g_malloc memory */
+static gboolean
+latin1_list_from_results (GetPropertyResults *results,
+                        char             ***str_p,
+                        int                *n_str_p)
+{
+  int i;
+  int n_strings;
+  char **retval;
+  const char *p;
+  
+  *str_p = NULL;
+  *n_str_p = 0;
+
+  if (!validate_or_free_results (results, 8, XA_STRING, FALSE))
+    return FALSE;
+  
+  /* I'm not sure this is right, but I'm guessing the
+   * property is nul-separated
+   */
+  i = 0;
+  n_strings = 0;
+  while (i < (int) results->n_items)
+    {
+      if (results->prop[i] == '\0')
+        ++n_strings;
+      ++i;
+    }
+
+  if (results->prop[results->n_items - 1] != '\0')
+    ++n_strings;
+ 
+  /* we're guaranteed that results->prop has a nul on the end
+   * by XGetWindowProperty
+   */
+  
+  retval = g_new0 (char*, n_strings + 1);
+
+  p = (char *)results->prop;
+  i = 0;
+  while (i < n_strings)
+    {
+      retval[i] = g_strdup (p);
+      
+      p = p + strlen (p) + 1;
+      ++i;
+    }
+  
+  *str_p = retval;
+  *n_str_p = i;
+
+  meta_XFree (results->prop);
+  results->prop = NULL;
+
+  return TRUE;
+}
+
+gboolean
+meta_prop_get_latin1_list (MetaDisplay   *display,
+                           Window         xwindow,
+                           Atom           xatom,
+                           char        ***str_p,
+                           int           *n_str_p)
+{
+  GetPropertyResults results;
+
+  *str_p = NULL;
+
+  if (!get_property (display, xwindow, xatom,
+                     XA_STRING, &results))
+    return FALSE;
+
+  return latin1_list_from_results (&results, str_p, n_str_p);
+}
+
 void
 meta_prop_set_utf8_string_hint (MetaDisplay *display,
                                 Window xwindow,

src/core/xprops.h

@@ -102,6 +102,11 @@ gboolean meta_prop_get_utf8_list     (MetaDisplay   *display,
                                       Atom           xatom,
                                       char        ***str_p,
                                       int           *n_str_p);
+gboolean meta_prop_get_latin1_list   (MetaDisplay   *display,
+                                      Window         xwindow,
+                                      Atom           xatom,
+                                      char        ***str_p,
+                                      int           *n_str_p);
 void     meta_prop_set_utf8_string_hint
                                      (MetaDisplay *display,
                                       Window xwindow,

src/meta/atomnames.h

@@ -72,6 +72,7 @@ item(_MUTTER_TIMESTAMP_PING)
 item(_MUTTER_FOCUS_SET)
 item(_MUTTER_SENTINEL)
 item(_MUTTER_VERSION)
+item(_MUTTER_PRESENTATION_OUTPUT)
 item(WM_CLIENT_MACHINE)
 item(MANAGER)
 item(TARGETS)
@@ -79,6 +80,8 @@ item(MULTIPLE)
 item(TIMESTAMP)
 item(VERSION)
 item(ATOM_PAIR)
+item(BACKLIGHT)
+item(_XKB_RULES_NAMES)
 
 /* Oddities: These are used, and we need atoms for them,
  * but when we need all _NET_WM hints (i.e. when we're making

src/meta/compositor.h

@@ -64,8 +64,8 @@ void meta_compositor_manage_screen   (MetaCompositor *compositor,
 void meta_compositor_unmanage_screen (MetaCompositor *compositor,
                                       MetaScreen     *screen);
 
-void meta_compositor_window_x11_shape_changed (MetaCompositor *compositor,
-                                               MetaWindow     *window);
+void meta_compositor_window_shape_changed (MetaCompositor *compositor,
+                                           MetaWindow     *window);
 
 gboolean meta_compositor_process_event (MetaCompositor *compositor,
                                         XEvent         *event,

src/meta/meta-plugin.h

@@ -205,6 +205,21 @@ struct _MetaPluginClass
   gboolean (*keybinding_filter) (MetaPlugin     *plugin,
                                  MetaKeyBinding *binding);
 
+  /**
+   * MetaPluginClass::confirm_display_config:
+   * @plugin: a #MetaPlugin
+   *
+   * Virtual function called when the display configuration changes.
+   * The common way to implement this function is to show some form
+   * of modal dialog that should ask the user if everything was ok.
+   *
+   * When confirmed by the user, the plugin must call meta_plugin_complete_display_change()
+   * to make the configuration permanent. If that function is not
+   * called within the timeout, the previous configuration will be
+   * reapplied.
+   */
+  void (*confirm_display_change) (MetaPlugin *plugin);
+
   /**
    * MetaPluginClass::plugin_info:
    * @plugin: a #MetaPlugin
@@ -214,6 +229,7 @@ struct _MetaPluginClass
    * Returns: a #MetaPluginInfo.
    */
   const MetaPluginInfo * (*plugin_info) (MetaPlugin *plugin);
+
 };
 
 /**
@@ -360,6 +376,10 @@ void
 meta_plugin_destroy_completed (MetaPlugin      *plugin,
                                MetaWindowActor *actor);
 
+void
+meta_plugin_complete_display_change (MetaPlugin *plugin,
+                                     gboolean    ok);
+
 /**
  * MetaModalOptions:
  * @META_MODAL_POINTER_ALREADY_GRABBED: if set the pointer is already

src/meta/meta-shaped-texture.h

@@ -67,11 +67,12 @@ GType meta_shaped_texture_get_type (void) G_GNUC_CONST;
 void meta_shaped_texture_set_create_mipmaps (MetaShapedTexture *stex,
 					     gboolean           create_mipmaps);
 
-void meta_shaped_texture_update_area (MetaShapedTexture *stex,
-                                      int                x,
-                                      int                y,
-                                      int                width,
-                                      int                height);
+gboolean meta_shaped_texture_update_area (MetaShapedTexture *stex,
+                                          int                x,
+                                          int                y,
+                                          int                width,
+                                          int                height,
+                                          cairo_region_t    *unobscured_region);
 
 CoglTexture * meta_shaped_texture_get_texture (MetaShapedTexture *stex);
 
@@ -80,10 +81,12 @@ void meta_shaped_texture_set_mask_texture (MetaShapedTexture *stex,
 void meta_shaped_texture_set_input_shape_region (MetaShapedTexture *stex,
                                                  cairo_region_t    *shape_region);
 
-/* Assumes ownership of clip_region */
 void meta_shaped_texture_set_clip_region (MetaShapedTexture *stex,
 					  cairo_region_t    *clip_region);
 
+void meta_shaped_texture_set_opaque_region (MetaShapedTexture *stex,
+                                            cairo_region_t    *opaque_region);
+
 cairo_surface_t * meta_shaped_texture_get_image (MetaShapedTexture     *stex,
                                                  cairo_rectangle_int_t *clip);
 

src/meta/util.h

@@ -102,7 +102,8 @@ typedef enum
   META_DEBUG_RESIZING        = 1 << 18,
   META_DEBUG_SHAPES          = 1 << 19,
   META_DEBUG_COMPOSITOR      = 1 << 20,
-  META_DEBUG_EDGE_RESISTANCE = 1 << 21
+  META_DEBUG_EDGE_RESISTANCE = 1 << 21,
+  META_DEBUG_DBUS            = 1 << 22
 } MetaDebugTopic;
 
 void meta_topic_real      (MetaDebugTopic topic,

src/org.gnome.mutter.wayland.gschema.xml.in

@@ -0,0 +1,33 @@
+<schemalist>
+  <schema id="org.gnome.mutter.wayland.keybindings" path="/org/gnome/mutter/wayland/keybindings/"
+	  gettext-domain="@GETTEXT_DOMAIN@">
+    <key name="switch-to-session-1" type="as">
+      <default><![CDATA[['<Primary><Alt>F1']]]></default>
+      <_summary>Switch to VT 1</_summary>
+    </key>
+    <key name="switch-to-session-2" type="as">
+      <default><![CDATA[['<Primary><Alt>F2']]]></default>
+      <_summary>Switch to VT 2</_summary>
+    </key>
+    <key name="switch-to-session-3" type="as">
+      <default><![CDATA[['<Primary><Alt>F3']]]></default>
+      <_summary>Switch to VT 3</_summary>
+    </key>
+    <key name="switch-to-session-4" type="as">
+      <default><![CDATA[['<Primary><Alt>F4']]]></default>
+      <_summary>Switch to VT 4</_summary>
+    </key>
+    <key name="switch-to-session-5" type="as">
+      <default><![CDATA[['<Primary><Alt>F5']]]></default>
+      <_summary>Switch to VT 5</_summary>
+    </key>
+    <key name="switch-to-session-6" type="as">
+      <default><![CDATA[['<Primary><Alt>F6']]]></default>
+      <_summary>Switch to VT 6</_summary>
+    </key>
+    <key name="switch-to-session-7" type="as">
+      <default><![CDATA[['<Primary><Alt>F7']]]></default>
+      <_summary>Switch to VT 7</_summary>
+    </key>
+  </schema>
+</schemalist>

src/wayland/meta-wayland-data-device.c

@@ -33,6 +33,7 @@
 #include "meta-wayland-data-device.h"
 #include "meta-wayland-seat.h"
 #include "meta-wayland-pointer.h"
+#include "meta-wayland-private.h"
 
 static void
 data_offer_accept (struct wl_client *client,

src/wayland/meta-wayland-keyboard.c

@@ -56,8 +56,9 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <sys/mman.h>
+#include <clutter/evdev/clutter-evdev.h>
 
-#include "meta-wayland-keyboard.h"
+#include "meta-wayland-private.h"
 
 static MetaWaylandSeat *
 meta_wayland_keyboard_get_seat (MetaWaylandKeyboard *keyboard)
@@ -105,11 +106,49 @@ create_anonymous_file (off_t size,
   return -1;
 }
 
-static gboolean
-meta_wayland_xkb_info_new_keymap (MetaWaylandXkbInfo *xkb_info)
+static void
+inform_clients_of_new_keymap (MetaWaylandKeyboard *keyboard,
+			      int                  flags)
 {
+  MetaWaylandCompositor *compositor;
+  struct wl_client *xclient;
+  struct wl_resource *keyboard_resource;
+
+  compositor = meta_wayland_compositor_get_default ();
+  xclient = compositor->xwayland_client;
+
+  wl_resource_for_each (keyboard_resource, &keyboard->resource_list)
+    {
+      if ((flags & META_WAYLAND_KEYBOARD_SKIP_XCLIENTS) &&
+	  wl_resource_get_client (keyboard_resource) == xclient)
+	continue;
+
+      wl_keyboard_send_keymap (keyboard_resource,
+			       WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1,
+			       keyboard->xkb_info.keymap_fd,
+			       keyboard->xkb_info.keymap_size);
+    }
+}
+
+static void
+meta_wayland_keyboard_take_keymap (MetaWaylandKeyboard *keyboard,
+				   struct xkb_keymap   *keymap,
+				   int                  flags)
+{
+  MetaWaylandXkbInfo  *xkb_info = &keyboard->xkb_info;
   GError *error = NULL;
   char *keymap_str;
+  size_t previous_size;
+
+  if (keymap == NULL)
+    {
+      g_warning ("Attempting to set null keymap (compilation probably failed)");
+      return;
+    }
+
+  if (xkb_info->keymap)
+    xkb_keymap_unref (xkb_info->keymap);
+  xkb_info->keymap = keymap;
 
   xkb_info->shift_mod =
     xkb_map_mod_get_index (xkb_info->keymap, XKB_MOD_NAME_SHIFT);
@@ -128,21 +167,28 @@ meta_wayland_xkb_info_new_keymap (MetaWaylandXkbInfo *xkb_info)
   keymap_str = xkb_map_get_as_string (xkb_info->keymap);
   if (keymap_str == NULL)
     {
-      g_warning ("failed to get string version of keymap\n");
-      return FALSE;
+      g_warning ("failed to get string version of keymap");
+      return;
     }
+  previous_size = xkb_info->keymap_size;
   xkb_info->keymap_size = strlen (keymap_str) + 1;
 
+  if (xkb_info->keymap_fd >= 0)
+    close (xkb_info->keymap_fd);
+
   xkb_info->keymap_fd = create_anonymous_file (xkb_info->keymap_size, &error);
   if (xkb_info->keymap_fd < 0)
     {
-      g_warning ("creating a keymap file for %lu bytes failed: %s\n",
+      g_warning ("creating a keymap file for %lu bytes failed: %s",
                  (unsigned long) xkb_info->keymap_size,
                  error->message);
       g_clear_error (&error);
       goto err_keymap_str;
     }
 
+  if (xkb_info->keymap_area)
+    munmap (xkb_info->keymap_area, previous_size);
+
   xkb_info->keymap_area = mmap (NULL, xkb_info->keymap_size,
                                 PROT_READ | PROT_WRITE,
                                 MAP_SHARED, xkb_info->keymap_fd, 0);
@@ -155,41 +201,24 @@ meta_wayland_xkb_info_new_keymap (MetaWaylandXkbInfo *xkb_info)
   strcpy (xkb_info->keymap_area, keymap_str);
   free (keymap_str);
 
-  return TRUE;
+  if (keyboard->is_evdev)
+    {
+      ClutterDeviceManager *manager;
+
+      manager = clutter_device_manager_get_default ();
+      clutter_evdev_set_keyboard_map (manager, xkb_info->keymap);
+    }
+
+  inform_clients_of_new_keymap (keyboard, flags);
+
+  return;
 
 err_dev_zero:
   close (xkb_info->keymap_fd);
   xkb_info->keymap_fd = -1;
 err_keymap_str:
   free (keymap_str);
-  return FALSE;
-}
-
-static gboolean
-meta_wayland_keyboard_build_global_keymap (struct xkb_context *xkb_context,
-                                           struct xkb_rule_names *xkb_names,
-                                           MetaWaylandXkbInfo *xkb_info)
-{
-  xkb_info->keymap = xkb_map_new_from_names (xkb_context,
-                                             xkb_names,
-                                             0 /* flags */);
-  if (xkb_info->keymap == NULL)
-    {
-      g_warning ("failed to compile global XKB keymap\n"
-                 "  tried rules %s, model %s, layout %s, variant %s, "
-                 "options %s\n",
-                 xkb_names->rules,
-                 xkb_names->model,
-                 xkb_names->layout,
-                 xkb_names->variant,
-                 xkb_names->options);
-      return FALSE;
-    }
-
-  if (!meta_wayland_xkb_info_new_keymap (xkb_info))
-    return FALSE;
-
-  return TRUE;
+  return;
 }
 
 static void
@@ -201,7 +230,7 @@ lose_keyboard_focus (struct wl_listener *listener, void *data)
   keyboard->focus_resource = NULL;
 }
 
-static void
+static gboolean
 default_grab_key (MetaWaylandKeyboardGrab *grab,
                   uint32_t time, uint32_t key, uint32_t state)
 {
@@ -217,6 +246,8 @@ default_grab_key (MetaWaylandKeyboardGrab *grab,
       serial = wl_display_next_serial (display);
       wl_keyboard_send_key (resource, serial, time, key, state);
     }
+
+  return resource != NULL;
 }
 
 static struct wl_resource *
@@ -258,12 +289,11 @@ default_grab_modifiers (MetaWaylandKeyboardGrab *grab, uint32_t serial,
                                       pointer->focus);
       if (pr)
         {
-          wl_keyboard_send_modifiers (pr,
-                                      serial,
-                                      keyboard->modifiers.mods_depressed,
-                                      keyboard->modifiers.mods_latched,
-                                      keyboard->modifiers.mods_locked,
-                                      keyboard->modifiers.group);
+          wl_keyboard_send_modifiers (pr, serial,
+				      mods_depressed,
+                                      mods_latched,
+                                      mods_locked,
+                                      group);
         }
     }
 }
@@ -274,11 +304,38 @@ static const MetaWaylandKeyboardGrabInterface
   default_grab_modifiers,
 };
 
+static gboolean
+modal_key (MetaWaylandKeyboardGrab *grab,
+	   uint32_t                 time,
+	   uint32_t                 key,
+	   uint32_t                 state)
+{
+  /* FALSE means: let the event through to clutter */
+  return FALSE;
+}
+
+static void
+modal_modifiers (MetaWaylandKeyboardGrab *grab,
+		 uint32_t                 serial,
+		 uint32_t                 mods_depressed,
+		 uint32_t                 mods_latched,
+		 uint32_t                 mods_locked,
+		 uint32_t                 group)
+{
+}
+
+static MetaWaylandKeyboardGrabInterface modal_grab = {
+  modal_key,
+  modal_modifiers,
+};
+
 gboolean
 meta_wayland_keyboard_init (MetaWaylandKeyboard *keyboard,
-                            struct wl_display *display)
+                            struct wl_display   *display,
+			    gboolean             is_evdev)
 {
   memset (keyboard, 0, sizeof *keyboard);
+  keyboard->xkb_info.keymap_fd = -1;
 
   wl_list_init (&keyboard->resource_list);
   wl_array_init (&keyboard->keys);
@@ -291,10 +348,15 @@ meta_wayland_keyboard_init (MetaWaylandKeyboard *keyboard,
   keyboard->display = display;
 
   keyboard->xkb_context = xkb_context_new (0 /* flags */);
+  keyboard->is_evdev = is_evdev;
 
-  meta_wayland_keyboard_build_global_keymap (keyboard->xkb_context,
-                                         &keyboard->xkb_names,
-                                         &keyboard->xkb_info);
+  /* Compute a default until gnome-settings-daemon starts and sets
+     the appropriate values
+  */
+  meta_wayland_keyboard_set_keymap_names (keyboard,
+					  "evdev",
+					  "pc105",
+					  "us", "", "", 0);
 
   return TRUE;
 }
@@ -311,90 +373,141 @@ meta_wayland_xkb_info_destroy (MetaWaylandXkbInfo *xkb_info)
     close (xkb_info->keymap_fd);
 }
 
+static gboolean
+state_equal (MetaWaylandXkbState *one,
+	     MetaWaylandXkbState *two)
+{
+  return one->mods_depressed == two->mods_depressed &&
+    one->mods_latched == two->mods_latched &&
+    one->mods_locked == two->mods_locked &&
+    one->group == two->group;
+}
+
 static void
 set_modifiers (MetaWaylandKeyboard *keyboard,
-               guint32 serial,
-               ClutterModifierType modifier_state)
+               guint32              serial,
+               ClutterEvent        *event)
 {
   MetaWaylandKeyboardGrab *grab = keyboard->grab;
-  uint32_t depressed_mods = 0;
-  uint32_t locked_mods = 0;
+  MetaWaylandXkbState new_state;
+  guint effective_state;
 
-  if (keyboard->last_modifier_state == modifier_state)
+  clutter_event_get_state_full (event,
+				NULL,
+				&new_state.mods_depressed,
+				&new_state.mods_latched,
+				&new_state.mods_locked,
+				&effective_state);
+  new_state.group = (effective_state >> 13) & 0x3;
+
+  if (state_equal (&keyboard->modifier_state, &new_state))
     return;
 
-  if ((modifier_state & CLUTTER_SHIFT_MASK) &&
-      keyboard->xkb_info.shift_mod != XKB_MOD_INVALID)
-    depressed_mods |= (1 << keyboard->xkb_info.shift_mod);
-
-  if ((modifier_state & CLUTTER_LOCK_MASK) &&
-      keyboard->xkb_info.caps_mod != XKB_MOD_INVALID)
-    locked_mods |= (1 << keyboard->xkb_info.caps_mod);
-
-  if ((modifier_state & CLUTTER_CONTROL_MASK) &&
-      keyboard->xkb_info.ctrl_mod != XKB_MOD_INVALID)
-    depressed_mods |= (1 << keyboard->xkb_info.ctrl_mod);
-
-  if ((modifier_state & CLUTTER_MOD1_MASK) &&
-      keyboard->xkb_info.alt_mod != XKB_MOD_INVALID)
-    depressed_mods |= (1 << keyboard->xkb_info.alt_mod);
-
-  if ((modifier_state & CLUTTER_MOD2_MASK) &&
-      keyboard->xkb_info.mod2_mod != XKB_MOD_INVALID)
-    depressed_mods |= (1 << keyboard->xkb_info.mod2_mod);
-
-  if ((modifier_state & CLUTTER_MOD3_MASK) &&
-      keyboard->xkb_info.mod3_mod != XKB_MOD_INVALID)
-    depressed_mods |= (1 << keyboard->xkb_info.mod3_mod);
-
-  if ((modifier_state & CLUTTER_SUPER_MASK) &&
-      keyboard->xkb_info.super_mod != XKB_MOD_INVALID)
-    depressed_mods |= (1 << keyboard->xkb_info.super_mod);
-
-  if ((modifier_state & CLUTTER_MOD5_MASK) &&
-      keyboard->xkb_info.mod5_mod != XKB_MOD_INVALID)
-    depressed_mods |= (1 << keyboard->xkb_info.mod5_mod);
-
-  keyboard->last_modifier_state = modifier_state;
+  keyboard->modifier_state = new_state;
 
   grab->interface->modifiers (grab,
                               serial,
-                              depressed_mods,
-                              0, /* latched_modes */
-                              locked_mods,
-                              0 /* group */);
+                              new_state.mods_depressed,
+			      new_state.mods_latched,
+			      new_state.mods_locked,
+                              new_state.group);
 }
 
-void
-meta_wayland_keyboard_handle_event (MetaWaylandKeyboard *keyboard,
-                                    const ClutterKeyEvent *event)
+#define N_BUTTONS 5
+
+static gboolean
+process_keybinding (MetaWaylandKeyboard   *keyboard,
+		    const ClutterEvent    *event)
 {
-  gboolean state = event->type == CLUTTER_KEY_PRESS;
-  guint evdev_code;
-  uint32_t serial;
+  MetaWaylandSurface *surface;
+  XGenericEventCookie generic_event;
+  XIDeviceEvent device_event;
+  unsigned char button_mask[(N_BUTTONS + 7) / 8] = { 0 };
+  MetaDisplay *display = meta_get_display ();
+  ClutterModifierType button_state;
+  int i;
 
-  /* We can't do anything with the event if we can't get an evdev
-     keycode for it */
-  if (event->device == NULL ||
-      !clutter_input_device_keycode_to_evdev (event->device,
-                                              event->hardware_keycode,
-                                              &evdev_code))
-    return;
+  if (!display) /* not initialized yet */
+    return FALSE;
 
-  /* We want to ignore events that are sent because of auto-repeat. In
-     the Clutter event stream these appear as a single key press
-     event. We can detect that because the key will already have been
-     pressed */
-  if (state)
+  generic_event.type = GenericEvent;
+  generic_event.serial = 0;
+  generic_event.send_event = False;
+  generic_event.display = display->xdisplay;
+  generic_event.extension = display->xinput_opcode;
+  if (clutter_event_type (event) == CLUTTER_KEY_PRESS)
+    generic_event.evtype = XI_KeyPress;
+  else
+    generic_event.evtype = XI_KeyRelease;
+  /* Mutter assumes the data for the event is already retrieved by GDK
+   * so we don't need the cookie */
+  generic_event.cookie = 0;
+  generic_event.data = &device_event;
+
+  memcpy (&device_event, &generic_event, sizeof (XGenericEvent));
+
+  /* Can't use clutter_event_get_time() here, because evdev timestamps
+     have nothing to do with X timestamps */
+  device_event.time = meta_display_get_current_time_roundtrip (display);
+  device_event.deviceid = clutter_event_get_device_id (event);
+  device_event.sourceid = 0; /* not used, not sure what this should be */
+  device_event.detail = clutter_event_get_key_code (event);
+  device_event.root = DefaultRootWindow (display->xdisplay);
+  device_event.flags = 0;
+
+  surface = keyboard->focus;
+  if (surface)
+    device_event.event = surface->window ? surface->window->xwindow : device_event.root;
+  else
+    device_event.event = device_event.root;
+
+  /* Mutter doesn't really know about the sub-windows. This assumes it
+     doesn't care either */
+  device_event.child = device_event.event;
+  device_event.root_x = 0;
+  device_event.root_y = 0;
+
+  clutter_event_get_state_full (event,
+				&button_state,
+				(ClutterModifierType*)&device_event.mods.base,
+				(ClutterModifierType*)&device_event.mods.latched,
+				(ClutterModifierType*)&device_event.mods.locked,
+				(ClutterModifierType*)&device_event.mods.effective);
+  device_event.mods.effective &= ~button_state;
+  memset (&device_event.group, 0, sizeof (device_event.group));
+  device_event.group.effective = (device_event.mods.effective >> 13) & 0x3;
+
+  for (i = 0; i < N_BUTTONS; i++)
+    if ((button_state & (CLUTTER_BUTTON1_MASK << i)))
+      XISetMask (button_mask, i + 1);
+  device_event.buttons.mask_len = N_BUTTONS + 1;
+  device_event.buttons.mask = button_mask;
+
+  device_event.valuators.mask_len = 0;
+  device_event.valuators.mask = NULL;
+  device_event.valuators.values = NULL;
+
+  return meta_display_process_key_event (display, surface ? surface->window : NULL, &device_event);
+}
+
+static gboolean
+update_pressed_keys (MetaWaylandKeyboard   *keyboard,
+		     uint32_t               evdev_code,
+		     gboolean               is_press)
+{
+  if (is_press)
     {
       uint32_t *end = (void *) ((char *) keyboard->keys.data +
                                 keyboard->keys.size);
       uint32_t *k;
 
-      /* Ignore the event if the key is already down */
+      /* We want to ignore events that are sent because of auto-repeat. In
+	 the Clutter event stream these appear as a single key press
+	 event. We can detect that because the key will already have been
+	 pressed */
       for (k = keyboard->keys.data; k < end; k++)
         if (*k == evdev_code)
-          return;
+          return TRUE;
 
       /* Otherwise add the key to the list of pressed keys */
       k = wl_array_add (&keyboard->keys, sizeof (*k));
@@ -417,19 +530,61 @@ meta_wayland_keyboard_handle_event (MetaWaylandKeyboard *keyboard,
           }
 
       g_warning ("unexpected key release event for key 0x%x", evdev_code);
+      return FALSE;
 
     found:
       (void) 0;
     }
 
+  return FALSE;
+}
+gboolean
+meta_wayland_keyboard_handle_event (MetaWaylandKeyboard *keyboard,
+                                    const ClutterKeyEvent *event)
+{
+  gboolean is_press = event->type == CLUTTER_KEY_PRESS;
+  guint xkb_keycode, evdev_code;
+  uint32_t serial;
+  gboolean autorepeat;
+  gboolean handled;
+
+  xkb_keycode = event->hardware_keycode;
+  if (event->device == NULL ||
+      !clutter_input_device_keycode_to_evdev (event->device,
+					      xkb_keycode, &evdev_code))
+    evdev_code = xkb_keycode - 8; /* What everyone is doing in practice... */
+
+  autorepeat = update_pressed_keys (keyboard, evdev_code, is_press);
+
+  meta_verbose ("Handling key %s%s event code %d\n",
+		is_press ? "press" : "release",
+		autorepeat ? " (autorepeat)" : "",
+		xkb_keycode);
+
+  /* Give a chance to process keybindings */
+  if (process_keybinding (keyboard, (ClutterEvent*) event))
+    return TRUE;
+
+  meta_verbose ("Keybindings ignored the previous event\n");
+
+  if (autorepeat)
+    return FALSE;
+
   serial = wl_display_next_serial (keyboard->display);
 
-  set_modifiers (keyboard, serial, event->modifier_state);
+  set_modifiers (keyboard, serial, (ClutterEvent*)event);
 
-  keyboard->grab->interface->key (keyboard->grab,
-                                  event->time,
-                                  evdev_code,
-                                  state);
+  handled = keyboard->grab->interface->key (keyboard->grab,
+					    event->time,
+					    evdev_code,
+					    is_press);
+
+  if (handled)
+    meta_verbose ("Sent event to wayland client\n");
+  else
+    meta_verbose ("No wayland surface is focused, continuing normal operation\n");
+
+  return handled;
 }
 
 void
@@ -461,13 +616,29 @@ meta_wayland_keyboard_set_focus (MetaWaylandKeyboard *keyboard,
 
       display = wl_client_get_display (client);
       serial = wl_display_next_serial (display);
-      wl_keyboard_send_modifiers (resource, serial,
-                                  keyboard->modifiers.mods_depressed,
-                                  keyboard->modifiers.mods_latched,
-                                  keyboard->modifiers.mods_locked,
-                                  keyboard->modifiers.group);
-      wl_keyboard_send_enter (resource, serial, surface->resource,
-                              &keyboard->keys);
+
+      /* If we're in a modal grab, the client is focused but doesn't see
+	 modifiers or pressed keys (and fix that up when we exit the modal) */
+      if (keyboard->grab->interface == &modal_grab)
+	{
+	  struct wl_array empty;
+	  wl_array_init (&empty);
+
+	  wl_keyboard_send_modifiers (resource, serial,
+				      0, 0, 0, 0);
+	  wl_keyboard_send_enter (resource, serial, surface->resource,
+				  &empty);
+	}
+      else
+	{
+	  wl_keyboard_send_modifiers (resource, serial,
+				      keyboard->modifier_state.mods_depressed,
+				      keyboard->modifier_state.mods_latched,
+				      keyboard->modifier_state.mods_locked,
+				      keyboard->modifier_state.group);
+	  wl_keyboard_send_enter (resource, serial, surface->resource,
+				  &keyboard->keys);
+	}
       wl_resource_add_destroy_listener (resource, &keyboard->focus_listener);
       keyboard->focus_serial = serial;
     }
@@ -496,12 +667,6 @@ meta_wayland_keyboard_end_grab (MetaWaylandKeyboard *keyboard)
 void
 meta_wayland_keyboard_release (MetaWaylandKeyboard *keyboard)
 {
-  g_free ((char *) keyboard->xkb_names.rules);
-  g_free ((char *) keyboard->xkb_names.model);
-  g_free ((char *) keyboard->xkb_names.layout);
-  g_free ((char *) keyboard->xkb_names.variant);
-  g_free ((char *) keyboard->xkb_names.options);
-
   meta_wayland_xkb_info_destroy (&keyboard->xkb_info);
   xkb_context_unref (keyboard->xkb_context);
 
@@ -510,3 +675,107 @@ meta_wayland_keyboard_release (MetaWaylandKeyboard *keyboard)
     wl_list_remove (&keyboard->focus_listener.link);
   wl_array_release (&keyboard->keys);
 }
+
+gboolean
+meta_wayland_keyboard_begin_modal (MetaWaylandKeyboard *keyboard,
+				   guint32              timestamp)
+{
+  MetaWaylandKeyboardGrab *grab;
+  uint32_t *end = (void *) ((char *) keyboard->keys.data +
+			    keyboard->keys.size);
+  uint32_t *k;
+  uint32_t serial;
+
+  meta_verbose ("Asked to acquire modal keyboard grab, timestamp %d\n", timestamp);
+
+  if (keyboard->grab != &keyboard->default_grab)
+    return FALSE;
+
+  if (keyboard->focus)
+    {
+      /* Fake key release events for the focused app */
+      serial = wl_display_next_serial (keyboard->display);
+      keyboard->grab->interface->modifiers (keyboard->grab,
+					    serial,
+					    0, 0, 0, 0);
+
+      for (k = keyboard->keys.data; k < end; k++)
+	{
+	  keyboard->grab->interface->key (keyboard->grab,
+					  timestamp,
+					  *k, 0);
+	}
+    }
+
+  grab = g_slice_new0 (MetaWaylandKeyboardGrab);
+  grab->interface = &modal_grab;
+  meta_wayland_keyboard_start_grab (keyboard, grab);
+
+  meta_verbose ("Acquired modal keyboard grab, timestamp %d\n", timestamp);
+
+  return TRUE;
+}
+
+void
+meta_wayland_keyboard_end_modal (MetaWaylandKeyboard *keyboard,
+				 guint32              timestamp)
+{
+  MetaWaylandKeyboardGrab *grab;
+  uint32_t *end = (void *) ((char *) keyboard->keys.data +
+			    keyboard->keys.size);
+  uint32_t *k;
+  uint32_t serial;
+
+  grab = keyboard->grab;
+
+  g_assert (grab->interface == &modal_grab);
+
+  meta_wayland_keyboard_end_grab (keyboard);
+  g_slice_free (MetaWaylandKeyboardGrab, grab);
+
+  if (keyboard->focus)
+    {
+      /* Fake key press events for the focused app */
+      serial = wl_display_next_serial (keyboard->display);
+      keyboard->grab->interface->modifiers (keyboard->grab,
+					    serial,
+					    keyboard->modifier_state.mods_depressed,
+					    keyboard->modifier_state.mods_latched, 
+					    keyboard->modifier_state.mods_locked,
+					    keyboard->modifier_state.group);
+
+      for (k = keyboard->keys.data; k < end; k++)
+	{
+	  keyboard->grab->interface->key (keyboard->grab,
+					  timestamp,
+					  *k, 1);
+	}
+    }
+
+  meta_verbose ("Released modal keyboard grab, timestamp %d\n", timestamp);
+}
+
+void
+meta_wayland_keyboard_set_keymap_names (MetaWaylandKeyboard *keyboard,
+					const char          *rules,
+					const char          *model,
+					const char          *layout,
+					const char          *variant,
+					const char          *options,
+					int                  flags)
+{
+  struct xkb_rule_names xkb_names;
+
+  xkb_names.rules = rules;
+  xkb_names.model = model;
+  xkb_names.layout = layout;
+  xkb_names.variant = variant;
+  xkb_names.options = options;
+
+  meta_wayland_keyboard_take_keymap (keyboard,
+				     xkb_keymap_new_from_names (keyboard->xkb_context,
+								&xkb_names,
+								0 /* flags */),
+				     flags);
+}
+

src/wayland/meta-wayland-keyboard.h

@@ -48,13 +48,94 @@
 #include <clutter/clutter.h>
 #include <wayland-server.h>
 
-#include "meta-wayland-seat.h"
+struct _MetaWaylandKeyboardGrabInterface
+{
+  gboolean (*key) (MetaWaylandKeyboardGrab * grab, uint32_t time,
+		   uint32_t key, uint32_t state);
+  void (*modifiers) (MetaWaylandKeyboardGrab * grab, uint32_t serial,
+                     uint32_t mods_depressed, uint32_t mods_latched,
+                     uint32_t mods_locked, uint32_t group);
+};
+
+struct _MetaWaylandKeyboardGrab
+{
+  const MetaWaylandKeyboardGrabInterface *interface;
+  MetaWaylandKeyboard *keyboard;
+  MetaWaylandSurface *focus;
+  uint32_t key;
+};
+
+typedef struct
+{
+  struct xkb_keymap *keymap;
+  int keymap_fd;
+  size_t keymap_size;
+  char *keymap_area;
+  xkb_mod_index_t shift_mod;
+  xkb_mod_index_t caps_mod;
+  xkb_mod_index_t ctrl_mod;
+  xkb_mod_index_t alt_mod;
+  xkb_mod_index_t mod2_mod;
+  xkb_mod_index_t mod3_mod;
+  xkb_mod_index_t super_mod;
+  xkb_mod_index_t mod5_mod;
+} MetaWaylandXkbInfo;
+
+typedef struct
+{
+  uint32_t mods_depressed;
+  uint32_t mods_latched;
+  uint32_t mods_locked;
+  uint32_t group;
+} MetaWaylandXkbState;
+
+struct _MetaWaylandKeyboard
+{
+  struct wl_list resource_list;
+  MetaWaylandSurface *focus;
+  struct wl_resource *focus_resource;
+  struct wl_listener focus_listener;
+  uint32_t focus_serial;
+  struct wl_signal focus_signal;
+
+  MetaWaylandKeyboardGrab *grab;
+  MetaWaylandKeyboardGrab default_grab;
+  uint32_t grab_key;
+  uint32_t grab_serial;
+  uint32_t grab_time;
+
+  struct wl_array keys;
+
+  MetaWaylandXkbState modifier_state;
+
+  struct wl_display *display;
+
+  struct xkb_context *xkb_context;
+  gboolean is_evdev;
+  MetaWaylandXkbInfo xkb_info;
+
+  MetaWaylandKeyboardGrab input_method_grab;
+  struct wl_resource *input_method_resource;
+};
 
 gboolean
 meta_wayland_keyboard_init (MetaWaylandKeyboard *keyboard,
-                            struct wl_display *display);
+                            struct wl_display   *display,
+			    gboolean             is_evdev);
+
+typedef enum {
+  META_WAYLAND_KEYBOARD_SKIP_XCLIENTS = 1,
+} MetaWaylandKeyboardSetKeymapFlags;
 
 void
+meta_wayland_keyboard_set_keymap_names (MetaWaylandKeyboard *keyboard,
+					const char          *rules,
+					const char          *model,
+					const char          *layout,
+					const char          *variant,
+					const char          *options,
+					int                  flags);
+gboolean
 meta_wayland_keyboard_handle_event (MetaWaylandKeyboard *keyboard,
                                     const ClutterKeyEvent *event);
 
@@ -69,6 +150,13 @@ meta_wayland_keyboard_start_grab (MetaWaylandKeyboard *device,
 void
 meta_wayland_keyboard_end_grab (MetaWaylandKeyboard *keyboard);
 
+gboolean
+meta_wayland_keyboard_begin_modal (MetaWaylandKeyboard *keyboard,
+				   guint32              timestamp);
+void
+meta_wayland_keyboard_end_modal   (MetaWaylandKeyboard *keyboard,
+				   guint32              timestamp);
+
 void
 meta_wayland_keyboard_release (MetaWaylandKeyboard *keyboard);
 

src/wayland/meta-wayland-pointer.c

@@ -43,7 +43,11 @@
 
 #include "config.h"
 
+#include <clutter/clutter.h>
+#include <clutter/evdev/clutter-evdev.h>
+
 #include "meta-wayland-pointer.h"
+#include "meta-wayland-private.h"
 
 #include <string.h>
 
@@ -119,9 +123,114 @@ static const MetaWaylandPointerGrabInterface default_pointer_grab_interface = {
   default_grab_button
 };
 
-void
-meta_wayland_pointer_init (MetaWaylandPointer *pointer)
+/*
+ * The pointer constrain code is mostly a rip-off of the XRandR code from Xorg.
+ * (from xserver/randr/rrcrtc.c, RRConstrainCursorHarder)
+ *
+ * Copyright © 2006 Keith Packard
+ * Copyright 2010 Red Hat, Inc
+ *
+ */
+
+static gboolean
+check_all_screen_monitors(MetaMonitorInfo *monitors,
+			  unsigned         n_monitors,
+			  float            x,
+			  float            y)
 {
+  unsigned int i;
+
+  for (i = 0; i < n_monitors; i++)
+    {
+      MetaMonitorInfo *monitor = &monitors[i];
+      int left, right, top, bottom;
+
+      left = monitor->rect.x;
+      right = left + monitor->rect.width;
+      top = monitor->rect.y;
+      bottom = left + monitor->rect.height;
+
+      if ((x >= left) && (x < right) && (y >= top) && (y < bottom))
+	return TRUE;
+    }
+
+  return FALSE;
+}
+
+static void
+constrain_all_screen_monitors (ClutterInputDevice *device,
+			       MetaMonitorInfo    *monitors,
+			       unsigned            n_monitors,
+			       float              *x,
+			       float              *y)
+{
+  ClutterPoint current;
+  unsigned int i;
+
+  clutter_input_device_get_coords (device, NULL, &current);
+
+  /* if we're trying to escape, clamp to the CRTC we're coming from */
+  for (i = 0; i < n_monitors; i++)
+    {
+      MetaMonitorInfo *monitor = &monitors[i];
+      int left, right, top, bottom;
+      float nx, ny;
+
+      left = monitor->rect.x;
+      right = left + monitor->rect.width;
+      top = monitor->rect.y;
+      bottom = left + monitor->rect.height;
+
+      nx = current.x;
+      ny = current.y;
+
+      if ((nx >= left) && (nx < right) && (ny >= top) && (ny < bottom))
+	{
+	  if (*x < left)
+	    *x = left;
+	  if (*x >= right)
+	    *x = right - 1;
+	  if (*y < top)
+	    *y = top;
+	  if (*y >= bottom)
+	    *y = bottom - 1;
+
+	  return;
+        }
+    }
+}
+
+static void
+pointer_constrain_callback (ClutterInputDevice *device,
+			    float              *new_x,
+			    float              *new_y,
+			    gpointer            user_data)
+{
+  MetaMonitorManager *monitor_manager;
+  MetaMonitorInfo *monitors;
+  unsigned int n_monitors;
+  gboolean ret;
+
+  monitor_manager = meta_monitor_manager_get ();
+  monitors = meta_monitor_manager_get_monitor_infos (monitor_manager, &n_monitors);
+
+  /* if we're moving inside a monitor, we're fine */
+  ret = check_all_screen_monitors(monitors, n_monitors, *new_x, *new_y);
+  if (ret == TRUE)
+    return;
+
+  /* if we're trying to escape, clamp to the CRTC we're coming from */
+  constrain_all_screen_monitors(device, monitors, n_monitors, new_x, new_y);
+}
+
+void
+meta_wayland_pointer_init (MetaWaylandPointer *pointer,
+			   gboolean            is_native)
+{
+  ClutterDeviceManager *manager;
+  ClutterInputDevice *device;
+  ClutterPoint current;
+
   memset (pointer, 0, sizeof *pointer);
   wl_list_init (&pointer->resource_list);
   pointer->focus_listener.notify = lose_pointer_focus;
@@ -130,9 +239,16 @@ meta_wayland_pointer_init (MetaWaylandPointer *pointer)
   pointer->grab = &pointer->default_grab;
   wl_signal_init (&pointer->focus_signal);
 
-  /* FIXME: Pick better co-ords. */
-  pointer->x = wl_fixed_from_int (100);
-  pointer->y = wl_fixed_from_int (100);
+  manager = clutter_device_manager_get_default ();
+  device = clutter_device_manager_get_core_device (manager, CLUTTER_POINTER_DEVICE);
+
+  if (is_native)
+    clutter_evdev_set_pointer_constrain_callback (manager, pointer_constrain_callback,
+						  pointer, NULL);
+
+  clutter_input_device_get_coords (device, NULL, &current);
+  pointer->x = wl_fixed_from_double (current.x);
+  pointer->y = wl_fixed_from_double (current.y);
 }
 
 void
@@ -194,10 +310,10 @@ meta_wayland_pointer_set_focus (MetaWaylandPointer *pointer,
             {
               wl_keyboard_send_modifiers (kr,
                                           serial,
-                                          kbd->modifiers.mods_depressed,
-                                          kbd->modifiers.mods_latched,
-                                          kbd->modifiers.mods_locked,
-                                          kbd->modifiers.group);
+                                          kbd->modifier_state.mods_depressed,
+                                          kbd->modifier_state.mods_latched,
+                                          kbd->modifier_state.mods_locked,
+                                          kbd->modifier_state.group);
             }
         }
       wl_pointer_send_enter (resource, serial, surface->resource, sx, sy);
@@ -262,3 +378,83 @@ meta_wayland_pointer_set_current (MetaWaylandPointer *pointer,
                                     &pointer->current_listener);
   pointer->current_listener.notify = current_surface_destroy;
 }
+
+static void
+modal_focus (MetaWaylandPointerGrab *grab,
+	     MetaWaylandSurface     *surface,
+	     wl_fixed_t              x,
+	     wl_fixed_t              y)
+{
+}
+
+static void
+modal_motion (MetaWaylandPointerGrab *grab,
+	      uint32_t                time,
+	      wl_fixed_t              x,
+	      wl_fixed_t              y)
+{
+}
+
+static void
+modal_button (MetaWaylandPointerGrab *grab,
+	      uint32_t                time,
+	      uint32_t                button,
+	      uint32_t                state)
+{
+}
+
+static MetaWaylandPointerGrabInterface modal_grab = {
+  modal_focus,
+  modal_motion,
+  modal_button
+};
+
+gboolean
+meta_wayland_pointer_begin_modal (MetaWaylandPointer *pointer)
+{
+  MetaWaylandPointerGrab *grab;
+
+  if (pointer->grab != &pointer->default_grab)
+    return FALSE;
+
+  meta_wayland_pointer_set_focus (pointer, NULL,
+				  wl_fixed_from_int (0),
+				  wl_fixed_from_int (0));
+
+  grab = g_slice_new0 (MetaWaylandPointerGrab);
+  grab->interface = &modal_grab;
+  meta_wayland_pointer_start_grab (pointer, grab);
+
+  return TRUE;
+}
+
+void
+meta_wayland_pointer_end_modal (MetaWaylandPointer *pointer)
+{
+  MetaWaylandPointerGrab *grab;
+
+  grab = pointer->grab;
+
+  g_assert (grab->interface == &modal_grab);
+
+  meta_wayland_pointer_end_grab (pointer);
+  g_slice_free (MetaWaylandPointerGrab, grab);
+}
+
+/* Called when the focused resource is destroyed */
+void
+meta_wayland_pointer_destroy_focus (MetaWaylandPointer *pointer)
+{
+  if (pointer->grab == &pointer->default_grab)
+    {
+      /* The surface was destroyed, but had the implicit pointer grab.
+         Bypass the grab interface. */
+      g_assert (pointer->button_count > 0);
+
+      /* Note: we focus the NULL interface, not the current one, because
+	 we have button down, and the clients would be confused if the
+	 pointer enters the surface.
+      */
+      meta_wayland_pointer_set_focus (pointer, NULL, 0, 0);
+    }
+}

src/wayland/meta-wayland-pointer.h

@@ -22,10 +22,55 @@
 
 #include <wayland-server.h>
 
-#include "meta-wayland-seat.h"
+#include <glib.h>
+
+#include "meta-wayland-types.h"
+
+struct _MetaWaylandPointerGrabInterface
+{
+  void (*focus) (MetaWaylandPointerGrab * grab,
+                 MetaWaylandSurface * surface, wl_fixed_t x, wl_fixed_t y);
+  void (*motion) (MetaWaylandPointerGrab * grab,
+                  uint32_t time, wl_fixed_t x, wl_fixed_t y);
+  void (*button) (MetaWaylandPointerGrab * grab,
+                  uint32_t time, uint32_t button, uint32_t state);
+};
+
+struct _MetaWaylandPointerGrab
+{
+  const MetaWaylandPointerGrabInterface *interface;
+  MetaWaylandPointer *pointer;
+  MetaWaylandSurface *focus;
+  wl_fixed_t x, y;
+};
+
+struct _MetaWaylandPointer
+{
+  struct wl_list resource_list;
+  MetaWaylandSurface *focus;
+  struct wl_resource *focus_resource;
+  struct wl_listener focus_listener;
+  guint32 focus_serial;
+  struct wl_signal focus_signal;
+
+  MetaWaylandPointerGrab *grab;
+  MetaWaylandPointerGrab default_grab;
+  wl_fixed_t grab_x, grab_y;
+  guint32 grab_button;
+  guint32 grab_serial;
+  guint32 grab_time;
+
+  wl_fixed_t x, y; /* TODO: remove, use ClutterInputDevice instead */
+  MetaWaylandSurface *current;
+  struct wl_listener current_listener;
+  wl_fixed_t current_x, current_y;
+
+  guint32 button_count;
+};
 
 void
-meta_wayland_pointer_init (MetaWaylandPointer *pointer);
+meta_wayland_pointer_init (MetaWaylandPointer *pointer,
+			   gboolean            is_native);
 
 void
 meta_wayland_pointer_release (MetaWaylandPointer *pointer);
@@ -35,6 +80,10 @@ meta_wayland_pointer_set_focus (MetaWaylandPointer *pointer,
                                 MetaWaylandSurface *surface,
                                 wl_fixed_t sx,
                                 wl_fixed_t sy);
+
+void
+meta_wayland_pointer_destroy_focus (MetaWaylandPointer *pointer);
+
 void
 meta_wayland_pointer_start_grab (MetaWaylandPointer *pointer,
                                  MetaWaylandPointerGrab *grab);
@@ -42,6 +91,11 @@ meta_wayland_pointer_start_grab (MetaWaylandPointer *pointer,
 void
 meta_wayland_pointer_end_grab (MetaWaylandPointer *pointer);
 
+gboolean
+meta_wayland_pointer_begin_modal (MetaWaylandPointer *pointer);
+void
+meta_wayland_pointer_end_modal   (MetaWaylandPointer *pointer);
+
 void
 meta_wayland_pointer_set_current (MetaWaylandPointer *pointer,
                                   MetaWaylandSurface *surface);

src/wayland/meta-wayland-private.h

@@ -28,43 +28,12 @@
 #include <cairo.h>
 
 #include "window-private.h"
+#include "meta-weston-launch.h"
 #include <meta/meta-cursor-tracker.h>
 
-typedef struct _MetaWaylandCompositor MetaWaylandCompositor;
-
-typedef struct _MetaWaylandSeat MetaWaylandSeat;
-typedef struct _MetaWaylandPointer MetaWaylandPointer;
-typedef struct _MetaWaylandPointerGrab MetaWaylandPointerGrab;
-typedef struct _MetaWaylandPointerGrabInterface MetaWaylandPointerGrabInterface;
-typedef struct _MetaWaylandKeyboard MetaWaylandKeyboard;
-typedef struct _MetaWaylandKeyboardGrab MetaWaylandKeyboardGrab;
-typedef struct _MetaWaylandKeyboardGrabInterface MetaWaylandKeyboardGrabInterface;
-typedef struct _MetaWaylandDataOffer MetaWaylandDataOffer;
-typedef struct _MetaWaylandDataSource MetaWaylandDataSource;
-
-typedef struct
-{
-  struct wl_resource *resource;
-  struct wl_signal destroy_signal;
-  struct wl_listener destroy_listener;
-
-  union
-  {
-    struct wl_shm_buffer *shm_buffer;
-G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
-    struct wl_buffer *legacy_buffer;
-G_GNUC_END_IGNORE_DEPRECATIONS;
-  };
-
-  int32_t width, height;
-  uint32_t busy_count;
-} MetaWaylandBuffer;
-
-typedef struct
-{
-  MetaWaylandBuffer *buffer;
-  struct wl_listener destroy_listener;
-} MetaWaylandBufferReference;
+#include "meta-wayland-types.h"
+#include "meta-wayland-surface.h"
+#include "meta-wayland-seat.h"
 
 typedef struct
 {
@@ -72,66 +41,6 @@ typedef struct
   cairo_region_t *region;
 } MetaWaylandRegion;
 
-struct _MetaWaylandSurface
-{
-  struct wl_resource *resource;
-  MetaWaylandCompositor *compositor;
-  guint32 xid;
-  int x;
-  int y;
-  MetaWaylandBufferReference buffer_ref;
-  MetaWindow *window;
-  gboolean has_shell_surface;
-
-  /* All the pending state, that wl_surface.commit will apply. */
-  struct
-  {
-    /* wl_surface.attach */
-    gboolean newly_attached;
-    MetaWaylandBuffer *buffer;
-    struct wl_listener buffer_destroy_listener;
-    int32_t sx;
-    int32_t sy;
-
-    /* wl_surface.damage */
-    cairo_region_t *damage;
-
-    /* wl_surface.frame */
-    struct wl_list frame_callback_list;
-  } pending;
-};
-
-#ifndef HAVE_META_WAYLAND_SURFACE_TYPE
-typedef struct _MetaWaylandSurface MetaWaylandSurface;
-#endif
-
-typedef struct
-{
-  MetaWaylandSurface *surface;
-  struct wl_resource *resource;
-  struct wl_listener surface_destroy_listener;
-} MetaWaylandShellSurface;
-
-typedef struct
-{
-  guint32 flags;
-  int width;
-  int height;
-  int refresh;
-} MetaWaylandMode;
-
-typedef struct
-{
-  struct wl_object wayland_output;
-  int x;
-  int y;
-  int width_mm;
-  int height_mm;
-  /* XXX: with sliced stages we'd reference a CoglFramebuffer here. */
-
-  GList *modes;
-} MetaWaylandOutput;
-
 typedef struct
 {
   GSource source;
@@ -155,7 +64,7 @@ struct _MetaWaylandCompositor
   struct wl_event_loop *wayland_loop;
   GMainLoop *init_loop;
   ClutterActor *stage;
-  GList *outputs;
+  GHashTable *outputs;
   GSource *wayland_event_source;
   GList *surfaces;
   struct wl_list frame_callbacks;
@@ -168,6 +77,9 @@ struct _MetaWaylandCompositor
   struct wl_client *xwayland_client;
   struct wl_resource *xserver_resource;
 
+  MetaLauncher *launcher;
+  int drm_fd;
+
   MetaWaylandSeat *seat;
 
   /* This surface is only used to keep drag of the implicit grab when
@@ -179,173 +91,6 @@ struct _MetaWaylandCompositor
   guint32 implicit_grab_button;
 };
 
-struct _MetaWaylandPointerGrabInterface
-{
-  void (*focus) (MetaWaylandPointerGrab * grab,
-                 MetaWaylandSurface * surface, wl_fixed_t x, wl_fixed_t y);
-  void (*motion) (MetaWaylandPointerGrab * grab,
-                  uint32_t time, wl_fixed_t x, wl_fixed_t y);
-  void (*button) (MetaWaylandPointerGrab * grab,
-                  uint32_t time, uint32_t button, uint32_t state);
-};
-
-struct _MetaWaylandPointerGrab
-{
-  const MetaWaylandPointerGrabInterface *interface;
-  MetaWaylandPointer *pointer;
-  MetaWaylandSurface *focus;
-  wl_fixed_t x, y;
-};
-
-struct _MetaWaylandPointer
-{
-  struct wl_list resource_list;
-  MetaWaylandSurface *focus;
-  struct wl_resource *focus_resource;
-  struct wl_listener focus_listener;
-  guint32 focus_serial;
-  struct wl_signal focus_signal;
-
-  MetaWaylandPointerGrab *grab;
-  MetaWaylandPointerGrab default_grab;
-  wl_fixed_t grab_x, grab_y;
-  guint32 grab_button;
-  guint32 grab_serial;
-  guint32 grab_time;
-
-  wl_fixed_t x, y;
-  MetaWaylandSurface *current;
-  struct wl_listener current_listener;
-  wl_fixed_t current_x, current_y;
-
-  guint32 button_count;
-};
-
-struct _MetaWaylandKeyboardGrabInterface
-{
-  void (*key) (MetaWaylandKeyboardGrab * grab, uint32_t time,
-               uint32_t key, uint32_t state);
-  void (*modifiers) (MetaWaylandKeyboardGrab * grab, uint32_t serial,
-                     uint32_t mods_depressed, uint32_t mods_latched,
-                     uint32_t mods_locked, uint32_t group);
-};
-
-struct _MetaWaylandKeyboardGrab
-{
-  const MetaWaylandKeyboardGrabInterface *interface;
-  MetaWaylandKeyboard *keyboard;
-  MetaWaylandSurface *focus;
-  uint32_t key;
-};
-
-typedef struct
-{
-  struct xkb_keymap *keymap;
-  int keymap_fd;
-  size_t keymap_size;
-  char *keymap_area;
-  xkb_mod_index_t shift_mod;
-  xkb_mod_index_t caps_mod;
-  xkb_mod_index_t ctrl_mod;
-  xkb_mod_index_t alt_mod;
-  xkb_mod_index_t mod2_mod;
-  xkb_mod_index_t mod3_mod;
-  xkb_mod_index_t super_mod;
-  xkb_mod_index_t mod5_mod;
-} MetaWaylandXkbInfo;
-
-struct _MetaWaylandKeyboard
-{
-  struct wl_list resource_list;
-  MetaWaylandSurface *focus;
-  struct wl_resource *focus_resource;
-  struct wl_listener focus_listener;
-  uint32_t focus_serial;
-  struct wl_signal focus_signal;
-
-  MetaWaylandKeyboardGrab *grab;
-  MetaWaylandKeyboardGrab default_grab;
-  uint32_t grab_key;
-  uint32_t grab_serial;
-  uint32_t grab_time;
-
-  struct wl_array keys;
-
-  struct
-  {
-    uint32_t mods_depressed;
-    uint32_t mods_latched;
-    uint32_t mods_locked;
-    uint32_t group;
-  } modifiers;
-
-  struct wl_display *display;
-
-  struct xkb_context *xkb_context;
-
-  MetaWaylandXkbInfo xkb_info;
-  struct xkb_rule_names xkb_names;
-
-  MetaWaylandKeyboardGrab input_method_grab;
-  struct wl_resource *input_method_resource;
-
-  ClutterModifierType last_modifier_state;
-};
-
-struct _MetaWaylandDataOffer
-{
-  struct wl_resource *resource;
-  MetaWaylandDataSource *source;
-  struct wl_listener source_destroy_listener;
-};
-
-struct _MetaWaylandDataSource
-{
-  struct wl_resource *resource;
-  struct wl_array mime_types;
-
-  void (*accept) (MetaWaylandDataSource * source,
-                  uint32_t serial, const char *mime_type);
-  void (*send) (MetaWaylandDataSource * source,
-                const char *mime_type, int32_t fd);
-  void (*cancel) (MetaWaylandDataSource * source);
-};
-
-struct _MetaWaylandSeat
-{
-  struct wl_list base_resource_list;
-  struct wl_signal destroy_signal;
-
-  uint32_t selection_serial;
-  MetaWaylandDataSource *selection_data_source;
-  struct wl_listener selection_data_source_listener;
-  struct wl_signal selection_signal;
-
-  struct wl_list drag_resource_list;
-  struct wl_client *drag_client;
-  MetaWaylandDataSource *drag_data_source;
-  struct wl_listener drag_data_source_listener;
-  MetaWaylandSurface *drag_focus;
-  struct wl_resource *drag_focus_resource;
-  struct wl_listener drag_focus_listener;
-  MetaWaylandPointerGrab drag_grab;
-  MetaWaylandSurface *drag_surface;
-  struct wl_listener drag_icon_listener;
-  struct wl_signal drag_icon_signal;
-
-  MetaWaylandPointer pointer;
-  MetaWaylandKeyboard keyboard;
-
-  struct wl_display *display;
-
-  MetaCursorTracker *cursor_tracker;
-  MetaWaylandSurface *sprite;
-  int hotspot_x, hotspot_y;
-  struct wl_listener sprite_destroy_listener;
-
-  ClutterActor *current_stage;
-};
-
 void                    meta_wayland_init                       (void);
 void                    meta_wayland_finalize                   (void);
 
@@ -358,6 +103,13 @@ void                    meta_wayland_compositor_repick          (MetaWaylandComp
 void                    meta_wayland_compositor_set_input_focus (MetaWaylandCompositor *compositor,
                                                                  MetaWindow            *window);
 
-void                    meta_wayland_surface_free               (MetaWaylandSurface    *surface);
+MetaLauncher           *meta_wayland_compositor_get_launcher    (MetaWaylandCompositor *compositor);
+gboolean                meta_wayland_compositor_is_native       (MetaWaylandCompositor *compositor);
+
+MetaWaylandBuffer *     meta_wayland_buffer_from_resource       (struct wl_resource *resource);
+
+void                    meta_wayland_buffer_reference           (MetaWaylandBufferReference *ref,
+								 MetaWaylandBuffer          *buffer);
+
 
 #endif /* META_WAYLAND_PRIVATE_H */

src/wayland/meta-wayland-seat.c

@@ -271,7 +271,8 @@ pointer_handle_sprite_destroy (struct wl_listener *listener, void *data)
 }
 
 MetaWaylandSeat *
-meta_wayland_seat_new (struct wl_display *display)
+meta_wayland_seat_new (struct wl_display *display,
+		       gboolean           is_native)
 {
   MetaWaylandSeat *seat = g_new0 (MetaWaylandSeat, 1);
 
@@ -283,9 +284,9 @@ meta_wayland_seat_new (struct wl_display *display)
   wl_list_init (&seat->drag_resource_list);
   wl_signal_init (&seat->drag_icon_signal);
 
-  meta_wayland_pointer_init (&seat->pointer);
+  meta_wayland_pointer_init (&seat->pointer, is_native);
 
-  meta_wayland_keyboard_init (&seat->keyboard, display);
+  meta_wayland_keyboard_init (&seat->keyboard, display, is_native);
 
   seat->display = display;
 
@@ -356,30 +357,24 @@ handle_button_event (MetaWaylandSeat *seat,
       break;
     }
 
-  if (state)
+  /* FIXME: Handle in display.c */
+  if (state && pointer->button_count == 1)
     {
-      if (pointer->button_count == 0)
-        {
-          MetaWaylandSurface *surface = pointer->current;
+      MetaWaylandSurface *surface = pointer->current;
 
-          pointer->grab_button = button;
-          pointer->grab_time = event->time;
-          pointer->grab_x = pointer->x;
-          pointer->grab_y = pointer->y;
+      pointer->grab_button = button;
+      pointer->grab_time = event->time;
+      pointer->grab_x = pointer->x;
+      pointer->grab_y = pointer->y;
 
-          if (button == BTN_LEFT &&
-              surface &&
-              surface->window &&
-              surface->window->client_type == META_WINDOW_CLIENT_TYPE_WAYLAND)
-            {
-              meta_window_raise (surface->window);
-            }
-        }
-
-      pointer->button_count++;
+      if (button == BTN_LEFT &&
+	  surface &&
+	  surface->window &&
+	  surface->window->client_type == META_WINDOW_CLIENT_TYPE_WAYLAND)
+	{
+	  meta_window_raise (surface->window);
+	}
     }
-  else
-    pointer->button_count--;
 
   pointer->grab->interface->button (pointer->grab, event->time, button, state);
 
@@ -429,10 +424,34 @@ handle_scroll_event (MetaWaylandSeat *seat,
                           value);
 }
 
-void
+static int
+count_buttons (const ClutterEvent *event)
+{
+  static gint maskmap[5] =
+    {
+      CLUTTER_BUTTON1_MASK, CLUTTER_BUTTON2_MASK, CLUTTER_BUTTON3_MASK,
+      CLUTTER_BUTTON4_MASK, CLUTTER_BUTTON5_MASK
+    };
+  ClutterModifierType mod_mask;
+  int i, count;
+
+  mod_mask = clutter_event_get_state (event);
+  count = 0;
+  for (i = 0; i < 5; i++)
+    {
+      if (mod_mask & maskmap[i])
+	count++;
+    }
+
+  return count;
+}
+
+gboolean
 meta_wayland_seat_handle_event (MetaWaylandSeat *seat,
                                 const ClutterEvent *event)
 {
+  seat->pointer.button_count = count_buttons (event);
+
   switch (event->type)
     {
     case CLUTTER_MOTION:
@@ -448,9 +467,8 @@ meta_wayland_seat_handle_event (MetaWaylandSeat *seat,
 
     case CLUTTER_KEY_PRESS:
     case CLUTTER_KEY_RELEASE:
-      meta_wayland_keyboard_handle_event (&seat->keyboard,
-                                          (const ClutterKeyEvent *) event);
-      break;
+      return meta_wayland_keyboard_handle_event (&seat->keyboard,
+						 (const ClutterKeyEvent *) event);
 
     case CLUTTER_SCROLL:
       handle_scroll_event (seat, (const ClutterScrollEvent *) event);
@@ -459,6 +477,8 @@ meta_wayland_seat_handle_event (MetaWaylandSeat *seat,
     default:
       break;
     }
+
+  return FALSE;
 }
 
 static void

src/wayland/meta-wayland-seat.h

@@ -27,12 +27,70 @@
 #include <clutter/clutter.h>
 #include <glib.h>
 
-#include "meta-wayland-private.h"
+#include <meta/meta-cursor-tracker.h>
+#include "meta-wayland-types.h"
+#include "meta-wayland-keyboard.h"
+#include "meta-wayland-pointer.h"
+
+struct _MetaWaylandDataOffer
+{
+  struct wl_resource *resource;
+  MetaWaylandDataSource *source;
+  struct wl_listener source_destroy_listener;
+};
+
+struct _MetaWaylandDataSource
+{
+  struct wl_resource *resource;
+  struct wl_array mime_types;
+
+  void (*accept) (MetaWaylandDataSource * source,
+                  uint32_t serial, const char *mime_type);
+  void (*send) (MetaWaylandDataSource * source,
+                const char *mime_type, int32_t fd);
+  void (*cancel) (MetaWaylandDataSource * source);
+};
+
+struct _MetaWaylandSeat
+{
+  struct wl_list base_resource_list;
+  struct wl_signal destroy_signal;
+
+  uint32_t selection_serial;
+  MetaWaylandDataSource *selection_data_source;
+  struct wl_listener selection_data_source_listener;
+  struct wl_signal selection_signal;
+
+  struct wl_list drag_resource_list;
+  struct wl_client *drag_client;
+  MetaWaylandDataSource *drag_data_source;
+  struct wl_listener drag_data_source_listener;
+  MetaWaylandSurface *drag_focus;
+  struct wl_resource *drag_focus_resource;
+  struct wl_listener drag_focus_listener;
+  MetaWaylandPointerGrab drag_grab;
+  MetaWaylandSurface *drag_surface;
+  struct wl_listener drag_icon_listener;
+  struct wl_signal drag_icon_signal;
+
+  MetaWaylandPointer pointer;
+  MetaWaylandKeyboard keyboard;
+
+  struct wl_display *display;
+
+  MetaCursorTracker *cursor_tracker;
+  MetaWaylandSurface *sprite;
+  int hotspot_x, hotspot_y;
+  struct wl_listener sprite_destroy_listener;
+
+  ClutterActor *current_stage;
+};
 
 MetaWaylandSeat *
-meta_wayland_seat_new (struct wl_display *display);
+meta_wayland_seat_new (struct wl_display *display,
+		       gboolean           is_native);
 
-void
+gboolean
 meta_wayland_seat_handle_event (MetaWaylandSeat *seat,
                                 const ClutterEvent *event);
 

src/wayland/meta-wayland-stage.c

@@ -26,6 +26,7 @@
 #include <cogl/cogl-wayland-server.h>
 
 #include "meta-wayland-stage.h"
+#include "meta-wayland-private.h"
 #include "meta/meta-window-actor.h"
 #include "meta/meta-shaped-texture.h"
 #include "meta-cursor-tracker-private.h"
@@ -55,6 +56,7 @@ meta_wayland_stage_class_init (MetaWaylandStageClass *klass)
 static void
 meta_wayland_stage_init (MetaWaylandStage *self)
 {
+  clutter_stage_set_user_resizable (CLUTTER_STAGE (self), FALSE);
 }
 
 ClutterActor *

src/wayland/meta-wayland-surface.h

@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2013 Red Hat, Inc.
+ *
+ * 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.
+ */
+
+#ifndef META_WAYLAND_SURFACE_H
+#define META_WAYLAND_SURFACE_H
+
+#include <wayland-server.h>
+#include <xkbcommon/xkbcommon.h>
+#include <clutter/clutter.h>
+
+#include <glib.h>
+#include <cairo.h>
+
+#include <meta/meta-cursor-tracker.h>
+#include "meta-wayland-types.h"
+
+struct _MetaWaylandBuffer
+{
+  struct wl_resource *resource;
+  struct wl_signal destroy_signal;
+  struct wl_listener destroy_listener;
+
+  CoglTexture *texture;
+  int32_t width, height;
+  uint32_t busy_count;
+};
+
+struct _MetaWaylandBufferReference
+{
+  MetaWaylandBuffer *buffer;
+  struct wl_listener destroy_listener;
+};
+
+typedef struct
+{
+  /* wl_surface.attach */
+  gboolean newly_attached;
+  MetaWaylandBuffer *buffer;
+  struct wl_listener buffer_destroy_listener;
+  int32_t dx;
+  int32_t dy;
+
+  /* wl_surface.damage */
+  cairo_region_t *damage;
+
+  cairo_region_t *input_region;
+  cairo_region_t *opaque_region;
+
+  /* wl_surface.frame */
+  struct wl_list frame_callback_list;
+} MetaWaylandDoubleBufferedState;
+
+typedef enum {
+  META_WAYLAND_SURFACE_TOPLEVEL = 0,
+  META_WAYLAND_SURFACE_MAXIMIZED,
+  META_WAYLAND_SURFACE_FULLSCREEN
+} MetaWaylandSurfaceType;
+
+typedef struct
+{
+  MetaWaylandSurfaceType initial_type;
+  struct wl_resource *transient_for;
+
+  char *title;
+  char *wm_class;
+
+  char *gtk_application_id;
+  char *gtk_unique_bus_name;
+  char *gtk_app_menu_path;
+  char *gtk_menubar_path;
+  char *gtk_application_object_path;
+  char *gtk_window_object_path;
+} MetaWaylandSurfaceInitialState;
+
+typedef struct
+{
+  MetaWaylandSurface *surface;
+  struct wl_resource *resource;
+  struct wl_listener surface_destroy_listener;
+} MetaWaylandSurfaceExtension;
+
+struct _MetaWaylandSurface
+{
+  struct wl_resource *resource;
+  MetaWaylandCompositor *compositor;
+  MetaWaylandBufferReference buffer_ref;
+  MetaWindow *window;
+  MetaWaylandSurfaceExtension *shell_surface;
+  MetaWaylandSurfaceExtension *gtk_surface;
+
+  /* All the pending state, that wl_surface.commit will apply. */
+  MetaWaylandDoubleBufferedState pending;
+
+  /* All the initial state, that wl_shell_surface.set_* will apply
+     (through meta_window_new_for_wayland) */
+  MetaWaylandSurfaceInitialState *initial_state;
+};
+
+void                meta_wayland_init_shell     (MetaWaylandCompositor *compositor);
+
+MetaWaylandSurface *meta_wayland_surface_create (MetaWaylandCompositor *compositor,
+						 struct wl_client      *client,
+						 guint32                id,
+						 guint32                version);
+void                meta_wayland_surface_free   (MetaWaylandSurface    *surface);
+
+void                meta_wayland_surface_set_initial_state (MetaWaylandSurface *surface,
+							    MetaWindow         *window);
+
+void                meta_wayland_surface_configure_notify (MetaWaylandSurface *surface,
+							   int                 width,
+							   int                 height,
+							   int                 edges);
+
+#endif

src/wayland/meta-wayland-types.h

@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2013 Red Hat, Inc.
+ *
+ * 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.
+ */
+
+#ifndef META_WAYLAND_TYPES_H
+#define META_WAYLAND_TYPES_H
+
+typedef struct _MetaWaylandCompositor MetaWaylandCompositor;
+
+typedef struct _MetaWaylandSeat MetaWaylandSeat;
+typedef struct _MetaWaylandPointer MetaWaylandPointer;
+typedef struct _MetaWaylandPointerGrab MetaWaylandPointerGrab;
+typedef struct _MetaWaylandPointerGrabInterface MetaWaylandPointerGrabInterface;
+typedef struct _MetaWaylandKeyboard MetaWaylandKeyboard;
+typedef struct _MetaWaylandKeyboardGrab MetaWaylandKeyboardGrab;
+typedef struct _MetaWaylandKeyboardGrabInterface MetaWaylandKeyboardGrabInterface;
+typedef struct _MetaWaylandDataOffer MetaWaylandDataOffer;
+typedef struct _MetaWaylandDataSource MetaWaylandDataSource;
+
+typedef struct _MetaWaylandBuffer MetaWaylandBuffer;
+typedef struct _MetaWaylandBufferReference MetaWaylandBufferReference;
+
+typedef struct _MetaWaylandSurface MetaWaylandSurface;
+
+#endif

src/wayland/meta-weston-launch.c

@@ -0,0 +1,453 @@
+/*
+ * Copyright (C) 2013 Red Hat, Inc.
+ *
+ * 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.
+ */
+
+#include <config.h>
+
+#include <gio/gio.h>
+#include <gio/gunixfdmessage.h>
+
+#include <clutter/clutter.h>
+#include <clutter/evdev/clutter-evdev.h>
+
+#include <glib.h>
+#include <sys/time.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <stdlib.h>
+#include <sys/wait.h>
+
+#include <drm.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+#include "meta-weston-launch.h"
+
+struct _MetaLauncherClass
+{
+  GObjectClass parent_class;
+
+  void (*enter) (MetaLauncher *);
+  void (*leave) (MetaLauncher *);
+};
+
+struct _MetaLauncher
+{
+  GObject parent;
+
+  GSocket *weston_launch;
+
+  gboolean vt_switched;
+
+  GMainContext *nested_context;
+  GMainLoop *nested_loop;
+
+  GSource *inner_source;
+  GSource *outer_source;
+};
+
+enum {
+  SIGNAL_ENTER,
+  SIGNAL_LEAVE,
+  SIGNAL_LAST
+};
+
+static int signals[SIGNAL_LAST];
+
+G_DEFINE_TYPE (MetaLauncher, meta_launcher, G_TYPE_OBJECT);
+
+static void handle_request_vt_switch (MetaLauncher *self);
+
+static gboolean
+request_vt_switch_idle (gpointer user_data)
+{
+  handle_request_vt_switch (user_data);
+
+  return FALSE;
+}
+
+static gboolean
+send_message_to_wl (MetaLauncher           *self,
+		    void                   *message,
+		    gsize                   size,
+		    GSocketControlMessage  *out_cmsg,
+		    GSocketControlMessage **in_cmsg,
+		    GError                **error)
+{
+  struct weston_launcher_reply reply;
+  GInputVector in_iov = { &reply, sizeof (reply) };
+  GOutputVector out_iov = { message, size };
+  GSocketControlMessage *out_all_cmsg[2];
+  GSocketControlMessage **in_all_cmsg;
+  int flags = 0;
+  int i;
+
+  out_all_cmsg[0] = out_cmsg;
+  out_all_cmsg[1] = NULL;
+  if (g_socket_send_message (self->weston_launch, NULL,
+			     &out_iov, 1,
+			     out_all_cmsg, -1,
+			     flags, NULL, error) != (gssize)size)
+    return FALSE;
+
+  if (g_socket_receive_message (self->weston_launch, NULL,
+				&in_iov, 1,
+			        &in_all_cmsg, NULL,
+				&flags, NULL, error) != sizeof (reply))
+    return FALSE;
+
+  while (reply.header.opcode != ((struct weston_launcher_message*)message)->opcode)
+    {
+      /* There were events queued */
+      g_assert ((reply.header.opcode & WESTON_LAUNCHER_EVENT) == WESTON_LAUNCHER_EVENT);
+
+      /* This can never happen, because the only time mutter-launch can queue
+         this event is after confirming a VT switch, and we don't make requests
+         during that time.
+
+         Note that getting this event would be really bad, because we would be
+         in the wrong loop/context.
+      */
+      g_assert (reply.header.opcode != WESTON_LAUNCHER_SERVER_VT_ENTER);
+
+      switch (reply.header.opcode)
+	{
+	case WESTON_LAUNCHER_SERVER_REQUEST_VT_SWITCH:
+	  g_idle_add (request_vt_switch_idle, self);
+	  break;
+
+	default:
+	  g_assert_not_reached ();
+	}
+
+      if (g_socket_receive_message (self->weston_launch, NULL,
+				    &in_iov, 1,
+				    NULL, NULL,
+				    &flags, NULL, error) != sizeof (reply))
+	return FALSE;
+    }
+
+  if (reply.ret != 0)
+    {
+      if (reply.ret == -1)
+	g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
+		     "Got failure from weston-launch");
+      else
+	g_set_error (error, G_IO_ERROR, g_io_error_from_errno (-reply.ret),
+		     "Got failure from weston-launch: %s", strerror (-reply.ret));
+
+      for (i = 0; in_all_cmsg && in_all_cmsg[i]; i++)
+	g_object_unref (in_all_cmsg[i]);
+      g_free (in_all_cmsg);
+
+      return FALSE;
+    }
+
+  if (in_all_cmsg && in_all_cmsg[0])
+    {
+      for (i = 1; in_all_cmsg[i]; i++)
+	g_object_unref (in_all_cmsg[i]);
+      *in_cmsg = in_all_cmsg[0];
+    }
+
+  g_free (in_all_cmsg);
+  return TRUE;
+}
+
+gboolean
+meta_launcher_set_drm_fd (MetaLauncher  *self,
+			  int            drm_fd,
+			  GError       **error)
+{
+  struct weston_launcher_message message;
+  GSocketControlMessage *cmsg;
+  gboolean ok;
+
+  message.opcode = WESTON_LAUNCHER_DRM_SET_FD;
+
+  cmsg = g_unix_fd_message_new ();
+  if (g_unix_fd_message_append_fd (G_UNIX_FD_MESSAGE (cmsg),
+				   drm_fd, error) == FALSE)
+    {
+      g_object_unref (cmsg);
+      return FALSE;
+    }
+
+  ok = send_message_to_wl (self, &message, sizeof message, cmsg, NULL, error);
+
+  g_object_unref (cmsg);
+  return ok;
+}
+
+int
+meta_launcher_open_input_device (MetaLauncher  *self,
+				 const char    *name,
+				 int            flags,
+				 GError       **error)
+{
+  struct weston_launcher_open *message;
+  GSocketControlMessage *cmsg;
+  gboolean ok;
+  gsize size;
+  int *fds, n_fd;
+  int ret;
+
+  size = sizeof (struct weston_launcher_open) + strlen (name) + 1;
+  message = g_malloc (size);
+  message->header.opcode = WESTON_LAUNCHER_OPEN;
+  message->flags = flags;
+  strcpy (message->path, name);
+  message->path[strlen(name)] = 0;
+
+  ok = send_message_to_wl (self, message, size, NULL, &cmsg, error);
+
+  if (ok)
+    {
+      g_assert (G_IS_UNIX_FD_MESSAGE (cmsg));
+
+      fds = g_unix_fd_message_steal_fds (G_UNIX_FD_MESSAGE (cmsg), &n_fd);
+      g_assert (n_fd == 1);
+
+      ret = fds[0];
+      g_free (fds);
+      g_object_unref (cmsg);
+    }
+  else
+    ret = -1;
+
+  g_free (message);
+  return ret;
+}
+
+static void
+meta_launcher_finalize (GObject *object)
+{
+  MetaLauncher *launcher = META_LAUNCHER (object);
+
+  g_source_destroy (launcher->outer_source);
+  g_source_destroy (launcher->inner_source);
+
+  g_main_loop_unref (launcher->nested_loop);
+  g_main_context_unref (launcher->nested_context);
+
+  g_object_unref (launcher->weston_launch);
+
+  G_OBJECT_CLASS (meta_launcher_parent_class)->finalize (object);
+}
+
+static void
+meta_launcher_enter (MetaLauncher *launcher)
+{
+  ClutterBackend *backend;
+  CoglContext *cogl_context;
+  CoglDisplay *cogl_display;
+
+  backend = clutter_get_default_backend ();
+  cogl_context = clutter_backend_get_cogl_context (backend);
+  cogl_display = cogl_context_get_display (cogl_context);
+  cogl_kms_display_queue_modes_reset (cogl_display);
+
+  clutter_evdev_reclaim_devices ();
+}
+
+static void
+meta_launcher_leave (MetaLauncher *launcher)
+{
+  clutter_evdev_release_devices ();
+}
+
+static int
+on_evdev_device_open (const char  *path,
+		      int          flags,
+		      gpointer     user_data,
+		      GError     **error)
+{
+  MetaLauncher *launcher = user_data;
+
+  return meta_launcher_open_input_device (launcher, path, flags, error);
+}
+
+static void
+handle_vt_enter (MetaLauncher *launcher)
+{
+  g_assert (launcher->vt_switched);
+
+  g_main_loop_quit (launcher->nested_loop);
+}
+
+static void
+handle_request_vt_switch (MetaLauncher *launcher)
+{
+  struct weston_launcher_message message;
+  GError *error;
+  gboolean ok;
+
+  g_signal_emit (launcher, signals[SIGNAL_LEAVE], 0);
+
+  message.opcode = WESTON_LAUNCHER_CONFIRM_VT_SWITCH;
+
+  error = NULL;
+  ok = send_message_to_wl (launcher, &message, sizeof (message), NULL, NULL, &error);
+  if (!ok) {
+    g_warning ("Failed to acknowledge VT switch: %s", error->message);
+    g_error_free (error);
+
+    return;
+  }
+
+  g_assert (!launcher->vt_switched);
+  launcher->vt_switched = TRUE;
+
+  /* We can't do anything at this point, because we don't
+     have input devices and we don't have the DRM master,
+     so let's run a nested busy loop until the VT is reentered */
+  g_main_loop_run (launcher->nested_loop);
+
+  g_assert (launcher->vt_switched);
+  launcher->vt_switched = FALSE;
+
+  g_signal_emit (launcher, signals[SIGNAL_ENTER], 0);
+}
+
+static gboolean
+on_socket_readable (GSocket      *socket,
+		    GIOCondition  condition,
+		    gpointer      user_data)
+{
+  MetaLauncher *launcher = user_data;
+  struct weston_launcher_event event;
+  gssize read;
+  GError *error;
+
+  if ((condition & G_IO_IN) == 0)
+    return TRUE;
+
+  error = NULL;
+  read = g_socket_receive (socket, (char*)&event, sizeof(event), NULL, &error);
+  if (read < (gssize)sizeof(event))
+    {
+      g_warning ("Error reading from weston-launcher socket: %s", error->message);
+      g_error_free (error);
+      return TRUE;
+    }
+
+  switch (event.header.opcode)
+    {
+    case WESTON_LAUNCHER_SERVER_REQUEST_VT_SWITCH:
+      handle_request_vt_switch (launcher);
+      break;
+
+    case WESTON_LAUNCHER_SERVER_VT_ENTER:
+      handle_vt_enter (launcher);
+      break;
+    }
+
+  return TRUE;
+}
+
+static int
+env_get_fd (const char *env)
+{
+  const char *value;
+
+  value = g_getenv (env);
+
+  if (value == NULL)
+    return -1;
+  else
+    return g_ascii_strtoll (value, NULL, 10);
+}
+
+static void
+meta_launcher_init (MetaLauncher *self)
+{
+  int launch_fd;
+
+  launch_fd = env_get_fd ("WESTON_LAUNCHER_SOCK");
+  if (launch_fd < 0)
+    g_error ("Invalid mutter-launch socket");
+
+  self->weston_launch = g_socket_new_from_fd (launch_fd, NULL);
+
+  clutter_evdev_set_open_callback (on_evdev_device_open, self);
+
+  self->nested_context = g_main_context_new ();
+  self->nested_loop = g_main_loop_new (self->nested_context, FALSE);
+
+  self->outer_source = g_socket_create_source (self->weston_launch, G_IO_IN, NULL);
+  g_source_set_callback (self->outer_source, (GSourceFunc)on_socket_readable, self, NULL);
+  g_source_attach (self->outer_source, NULL);
+  g_source_unref (self->outer_source);
+
+  self->inner_source = g_socket_create_source (self->weston_launch, G_IO_IN, NULL);
+  g_source_set_callback (self->inner_source, (GSourceFunc)on_socket_readable, self, NULL);
+  g_source_attach (self->inner_source, self->nested_context);
+  g_source_unref (self->inner_source);
+}
+
+static void
+meta_launcher_class_init (MetaLauncherClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = meta_launcher_finalize;
+
+  klass->enter = meta_launcher_enter;
+  klass->leave = meta_launcher_leave;
+
+  signals[SIGNAL_ENTER] = g_signal_new ("enter",
+					G_TYPE_FROM_CLASS (klass),
+					G_SIGNAL_RUN_FIRST,
+					G_STRUCT_OFFSET (MetaLauncherClass, enter),
+					NULL, NULL, /* accumulator */
+					g_cclosure_marshal_VOID__VOID,
+					G_TYPE_NONE, 0);
+
+  signals[SIGNAL_LEAVE] = g_signal_new ("leave",
+					G_TYPE_FROM_CLASS (klass),
+					G_SIGNAL_RUN_FIRST,
+					G_STRUCT_OFFSET (MetaLauncherClass, leave),
+					NULL, NULL, /* accumulator */
+					g_cclosure_marshal_VOID__VOID,
+					G_TYPE_NONE, 0);
+}
+
+MetaLauncher *
+meta_launcher_new (void)
+{
+  return g_object_new (META_TYPE_LAUNCHER, NULL);
+}
+
+gboolean
+meta_launcher_activate_vt (MetaLauncher  *launcher,
+			   int            vt,
+			   GError       **error)
+{
+  struct weston_launcher_activate_vt message;
+
+  message.header.opcode = WESTON_LAUNCHER_ACTIVATE_VT;
+  message.vt = vt;
+
+  return send_message_to_wl (launcher, &message, sizeof (message), NULL, NULL, error);
+}
+

src/wayland/meta-weston-launch.h

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2013 Red Hat, Inc.
+ *
+ * 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.
+ */
+
+#ifndef META_WESTON_LAUNCH_H
+#define META_WESTON_LAUNCH_H
+
+#include <glib-object.h>
+#include "weston-launch.h"
+
+#define META_TYPE_LAUNCHER              (meta_launcher_get_type())
+#define META_LAUNCHER(obj)              (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_LAUNCHER, MetaLauncher))
+#define META_LAUNCHER_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_LAUNCHER, MetaLauncherClass))
+#define META_IS_LAUNCHER(obj)           (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_LAUNCHER))
+#define META_IS_LAUNCHER_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_LAUNCHER))
+#define META_LAUNCHER_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), META_LAUNCHER, MetaLauncherClass))
+
+typedef struct _MetaLauncher      MetaLauncher;
+typedef struct _MetaLauncherClass MetaLauncherClass;
+
+GType             meta_launcher_get_type                (void) G_GNUC_CONST;
+
+MetaLauncher     *meta_launcher_new                     (void);
+
+gboolean          meta_launcher_activate_vt             (MetaLauncher  *self,
+							 int            number,
+							 GError       **error);
+
+gboolean          meta_launcher_set_drm_fd              (MetaLauncher  *self,
+							 int            drm_fd,
+							 GError       **error);
+gboolean          meta_launcher_set_master              (MetaLauncher  *self,
+							 gboolean       master,
+							 GError       **error);
+int               meta_launcher_open_input_device       (MetaLauncher  *self,
+							 const char    *name,
+							 int            flags,
+							 GError       **error);
+
+#endif

src/wayland/meta-xwayland-private.h

@@ -27,6 +27,9 @@
 gboolean
 meta_xwayland_start (MetaWaylandCompositor *compositor);
 
+void
+meta_xwayland_complete_init (void);
+
 void
 meta_xwayland_stop (MetaWaylandCompositor *compositor);
 

src/wayland/meta-xwayland.c

@@ -45,10 +45,6 @@ xserver_set_window_id (struct wl_client *client,
   MetaDisplay *display = meta_get_display ();
   MetaWindow *window;
 
-  g_return_if_fail (surface->xid == None);
-
-  surface->xid = xid;
-
   window  = meta_display_lookup_x_window (display, xid);
   if (window)
     {
@@ -269,7 +265,7 @@ bind_to_unix_socket (int display)
 }
 
 static void
-uncloexec_and_setpgid (gpointer user_data)
+uncloexec (gpointer user_data)
 {
   int fd = GPOINTER_TO_INT (user_data);
 
@@ -278,10 +274,6 @@ uncloexec_and_setpgid (gpointer user_data)
   int flags = fcntl (fd, F_GETFD);
   if (flags != -1)
     fcntl (fd, F_SETFD, flags & ~FD_CLOEXEC);
-
-  /* Put this process in a background process group, so that Ctrl-C
-     goes to mutter only */
-  setpgid (0, 0);
 }
 
 static void
@@ -301,6 +293,14 @@ xserver_died (GPid     pid,
     }
 }
 
+static int
+x_io_error (Display *display)
+{
+  g_error ("Connection to xwayland lost");
+
+  return 0;
+}
+
 gboolean
 meta_xwayland_start (MetaWaylandCompositor *compositor)
 {
@@ -393,7 +393,7 @@ meta_xwayland_start (MetaWaylandCompositor *compositor)
                      G_SPAWN_DO_NOT_REAP_CHILD |
                      G_SPAWN_STDOUT_TO_DEV_NULL |
                      G_SPAWN_STDERR_TO_DEV_NULL,
-                     uncloexec_and_setpgid,
+                     uncloexec,
                      GINT_TO_POINTER (sp[1]),
                      &pid,
                      &error))
@@ -425,6 +425,18 @@ meta_xwayland_start (MetaWaylandCompositor *compositor)
   return TRUE;
 }
 
+/* To be called right after connecting */
+void
+meta_xwayland_complete_init (void)
+{
+  /* We install an X IO error handler in addition to the child watch,
+     because after Xlib connects our child watch may not be called soon
+     enough, and therefore we won't crash when X exits (and most important
+     we won't reset the tty).
+  */
+  XSetIOErrorHandler (x_io_error);
+}
+
 void
 meta_xwayland_stop (MetaWaylandCompositor *compositor)
 {

src/wayland/weston-launch.c

@@ -0,0 +1,792 @@
+/*
+ * Copyright © 2012 Benjamin Franzke
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of the copyright holders not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission.  The copyright holders make
+ * no representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <poll.h>
+#include <errno.h>
+
+#include <error.h>
+#include <getopt.h>
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <sys/socket.h>
+#include <sys/signalfd.h>
+#include <signal.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <limits.h>
+
+#include <termios.h>
+#include <linux/vt.h>
+#include <linux/major.h>
+#include <linux/kd.h>
+
+#include <pwd.h>
+#include <grp.h>
+#include <security/pam_appl.h>
+
+#include <xf86drm.h>
+
+#include <systemd/sd-login.h>
+
+#include "weston-launch.h"
+
+#define MAX_ARGV_SIZE 256
+#define DRM_MAJOR     226
+
+enum vt_state {
+	VT_HAS_VT,
+	VT_PENDING_CONFIRM,
+	VT_NOT_HAVE_VT,
+};
+
+struct weston_launch {
+	struct pam_conv pc;
+	pam_handle_t *ph;
+	int tty;
+	int ttynr;
+	int sock[2];
+	struct passwd *pw;
+
+	int signalfd;
+
+	pid_t child;
+	int verbose;
+	char *new_user;
+
+	struct termios terminal_attributes;
+	int kb_mode;
+	enum vt_state vt_state;
+
+        int drm_fd;
+};
+
+union cmsg_data { unsigned char b[4]; int fd; };
+
+static void quit (struct weston_launch *wl, int status);
+
+static int
+weston_launch_allowed(struct weston_launch *wl)
+{
+	char *session, *seat;
+	int err;
+
+	if (getuid() == 0)
+		return 1;
+
+	err = sd_pid_get_session(getpid(), &session);
+	if (err == 0 && session) {
+		if (sd_session_is_active(session) &&
+		    sd_session_get_seat(session, &seat) == 0) {
+			free(seat);
+			free(session);
+			return 1;
+		}
+		free(session);
+	}
+	
+	return 0;
+}
+
+static int
+setup_launcher_socket(struct weston_launch *wl)
+{
+	if (socketpair(AF_LOCAL, SOCK_DGRAM, 0, wl->sock) < 0)
+		error(1, errno, "socketpair failed");
+	
+	fcntl(wl->sock[0], F_SETFD, O_CLOEXEC);
+
+	return 0;
+}
+
+static int
+setup_signals(struct weston_launch *wl)
+{
+	int ret;
+	sigset_t mask;
+	struct sigaction sa;
+
+	memset(&sa, 0, sizeof sa);
+	sa.sa_handler = SIG_DFL;
+	sa.sa_flags = SA_NOCLDSTOP | SA_RESTART;
+	ret = sigaction(SIGCHLD, &sa, NULL);
+	assert(ret == 0);
+
+	sa.sa_handler = SIG_IGN;
+	sa.sa_flags = 0;
+	sigaction(SIGHUP, &sa, NULL);
+
+	ret = sigemptyset(&mask);
+	assert(ret == 0);
+	sigaddset(&mask, SIGCHLD);
+	sigaddset(&mask, SIGINT);
+	sigaddset(&mask, SIGTERM);
+	sigaddset(&mask, SIGUSR1);
+	ret = sigprocmask(SIG_BLOCK, &mask, NULL);
+	assert(ret == 0);
+
+	wl->signalfd = signalfd(-1, &mask, SFD_NONBLOCK | SFD_CLOEXEC);
+	if (wl->signalfd < 0)
+		return -errno;
+
+	return 0;
+}
+
+static void
+setenv_fd(const char *env, int fd)
+{
+	char buf[32];
+
+	snprintf(buf, sizeof buf, "%d", fd);
+	setenv(env, buf, 1);
+}
+
+static int
+handle_setdrmfd(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
+{
+        struct weston_launcher_reply reply;
+	struct cmsghdr *cmsg;
+	union cmsg_data *data;
+	struct stat s;
+
+	reply.header.opcode = WESTON_LAUNCHER_DRM_SET_FD;
+	reply.ret = -1;
+
+	if (wl->drm_fd != -1) {
+		error(0, 0, "DRM FD already set");
+		reply.ret = -EINVAL;
+		goto out;
+	}
+
+	cmsg = CMSG_FIRSTHDR(msg);
+	if (!cmsg ||
+	    cmsg->cmsg_level != SOL_SOCKET ||
+	    cmsg->cmsg_type != SCM_RIGHTS) {
+		error(0, 0, "invalid control message");
+		reply.ret = -EINVAL;
+		goto out;
+	}
+
+	data = (union cmsg_data *) CMSG_DATA(cmsg);
+	if (data->fd < 0) {
+		error(0, 0, "missing drm fd in socket request");
+		reply.ret = -EINVAL;
+		goto out;
+	}
+
+	if (fstat(data->fd, &s) < 0) {
+		reply.ret = -errno;
+		goto out;
+	}
+
+	if (major(s.st_rdev) != DRM_MAJOR) {
+		fprintf(stderr, "FD is not for DRM\n");
+		reply.ret = -EPERM;
+		goto out;
+	}
+
+	wl->drm_fd = data->fd;
+	reply.ret = drmSetMaster(data->fd);
+	if (reply.ret < 0)
+		reply.ret = -errno;
+
+	if (wl->verbose)
+		fprintf(stderr, "weston-launch: set drm FD, ret: %d, fd: %d\n",
+			reply.ret, data->fd);
+
+out:
+	do {
+		len = send(wl->sock[0], &reply, sizeof reply, 0);
+	} while (len < 0 && errno == EINTR);
+	if (len < 0)
+		return -1;
+
+	return 0;
+}
+
+static int
+handle_confirm_vt_switch(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
+{
+        struct weston_launcher_reply reply;
+
+	reply.header.opcode = WESTON_LAUNCHER_CONFIRM_VT_SWITCH;
+	reply.ret = -1;
+
+	if (wl->vt_state != VT_PENDING_CONFIRM) {
+		error(0, 0, "unexpected CONFIRM_VT_SWITCH");
+		goto out;
+	}
+
+	if (wl->drm_fd != -1) {
+		int ret;
+
+		ret = drmDropMaster(wl->drm_fd);
+		if (ret < 0) {
+			fprintf(stderr, "failed to drop DRM master: %m\n");
+		} else if (wl->verbose) {
+			fprintf(stderr, "dropped DRM master for VT switch\n");
+		}
+	}
+
+	wl->vt_state = VT_NOT_HAVE_VT;
+	ioctl(wl->tty, VT_RELDISP, 1);
+
+	if (wl->verbose)
+		fprintf(stderr, "weston-launcher: confirmed VT switch\n");
+
+	reply.ret = 0;
+
+out:
+	do {
+		len = send(wl->sock[0], &reply, sizeof reply, 0);
+	} while (len < 0 && errno == EINTR);
+	if (len < 0)
+		return -1;
+
+	return 0;
+}
+
+static int
+handle_activate_vt(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
+{
+        struct weston_launcher_reply reply;
+	struct weston_launcher_activate_vt *message;
+
+	reply.header.opcode = WESTON_LAUNCHER_ACTIVATE_VT;
+	reply.ret = -1;
+
+	if (len != sizeof(*message)) {
+		error(0, 0, "missing value in activate_vt request");
+		goto out;
+	}
+
+	message = msg->msg_iov->iov_base;
+
+	reply.ret = ioctl(wl->tty, VT_ACTIVATE, message->vt);
+	if (reply.ret < 0)
+		reply.ret = -errno;
+
+	if (wl->verbose)
+		fprintf(stderr, "weston-launch: activate VT, ret: %d\n", reply.ret);
+
+out:
+	do {
+		len = send(wl->sock[0], &reply, sizeof reply, 0);
+	} while (len < 0 && errno == EINTR);
+	if (len < 0)
+		return -1;
+
+	return 0;
+}
+
+
+static int
+handle_open(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
+{
+        struct weston_launcher_reply reply;
+	int fd = -1;
+	char control[CMSG_SPACE(sizeof(fd))];
+	struct cmsghdr *cmsg;
+	struct stat s;
+	struct msghdr nmsg;
+	struct iovec iov;
+	struct weston_launcher_open *message;
+	union cmsg_data *data;
+
+	reply.header.opcode = WESTON_LAUNCHER_OPEN;
+	reply.ret = -1;
+
+	message = msg->msg_iov->iov_base;
+	if ((size_t)len < sizeof(*message))
+		goto err0;
+
+	/* Ensure path is null-terminated */
+	((char *) message)[len-1] = '\0';
+
+	if (stat(message->path, &s) < 0) {
+		reply.ret = -errno;
+		goto err0;
+	}
+
+	fd = open(message->path, message->flags);
+	if (fd < 0) {
+		fprintf(stderr, "Error opening device %s: %m\n",
+			message->path);
+		reply.ret = -errno;
+		goto err0;
+	}
+
+	if (major(s.st_rdev) != INPUT_MAJOR) {
+		close(fd);
+		fd = -1;
+		fprintf(stderr, "Device %s is not an input device\n",
+			message->path);
+		reply.ret = -EPERM;
+		goto err0;
+	}
+
+err0:
+	memset(&nmsg, 0, sizeof nmsg);
+	nmsg.msg_iov = &iov;
+	nmsg.msg_iovlen = 1;
+	if (fd != -1) {
+		nmsg.msg_control = control;
+		nmsg.msg_controllen = sizeof control;
+		cmsg = CMSG_FIRSTHDR(&nmsg);
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_type = SCM_RIGHTS;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(fd));
+		data = (union cmsg_data *) CMSG_DATA(cmsg);
+		data->fd = fd;
+		nmsg.msg_controllen = cmsg->cmsg_len;
+		reply.ret = 0;
+	}
+	iov.iov_base = &reply;
+	iov.iov_len = sizeof reply;
+
+	if (wl->verbose)
+		fprintf(stderr, "weston-launch: opened %s: ret: %d, fd: %d\n",
+			message->path, reply.ret, fd);
+	do {
+		len = sendmsg(wl->sock[0], &nmsg, 0);
+	} while (len < 0 && errno == EINTR);
+
+	close(fd);
+
+	if (len < 0)
+		return -1;
+
+	return 0;
+}
+
+static int
+handle_socket_msg(struct weston_launch *wl)
+{
+	char control[CMSG_SPACE(sizeof(int))];
+	char buf[BUFSIZ];
+	struct msghdr msg;
+	struct iovec iov;
+	int ret = -1;
+	ssize_t len;
+	struct weston_launcher_message *message;
+
+	memset(&msg, 0, sizeof(msg));
+	iov.iov_base = buf;
+	iov.iov_len  = sizeof buf;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = control;
+	msg.msg_controllen = sizeof control;
+
+	do {
+		len = recvmsg(wl->sock[0], &msg, 0);
+	} while (len < 0 && errno == EINTR);
+
+	if (len < 1)
+		return -1;
+
+	message = (void *) buf;
+	switch (message->opcode) {
+	case WESTON_LAUNCHER_OPEN:
+		ret = handle_open(wl, &msg, len);
+		break;
+	case WESTON_LAUNCHER_DRM_SET_FD:
+		ret = handle_setdrmfd(wl, &msg, len);
+		break;
+	case WESTON_LAUNCHER_CONFIRM_VT_SWITCH:
+		ret = handle_confirm_vt_switch(wl, &msg, len);
+		break;
+	case WESTON_LAUNCHER_ACTIVATE_VT:
+		ret = handle_activate_vt(wl, &msg, len);
+		break;
+	}
+
+	return ret;
+}
+
+static void
+tty_reset(struct weston_launch *wl)
+{
+	struct vt_mode mode = { 0 };
+
+	if (ioctl(wl->tty, KDSKBMODE, wl->kb_mode))
+		fprintf(stderr, "failed to restore keyboard mode: %m\n");
+
+	if (ioctl(wl->tty, KDSETMODE, KD_TEXT))
+		fprintf(stderr, "failed to set KD_TEXT mode on tty: %m\n");
+
+	if (tcsetattr(wl->tty, TCSANOW, &wl->terminal_attributes) < 0)
+		fprintf(stderr, "could not restore terminal to canonical mode\n");
+
+	mode.mode = VT_AUTO;
+	if (ioctl(wl->tty, VT_SETMODE, &mode) < 0)
+		fprintf(stderr, "could not reset vt handling\n");
+}
+
+static void
+quit(struct weston_launch *wl, int status)
+{
+	int err;
+
+	if (wl->child > 0)
+		kill(wl->child, SIGKILL);
+
+	close(wl->signalfd);
+	close(wl->sock[0]);
+
+	if (wl->drm_fd > 0)
+		close(wl->drm_fd);
+
+	tty_reset(wl);
+
+	if (wl->new_user) {
+		err = pam_close_session(wl->ph, 0);
+		if (err)
+			fprintf(stderr, "pam_close_session failed: %d: %s\n",
+				err, pam_strerror(wl->ph, err));
+		pam_end(wl->ph, err);
+	}
+
+	exit(status);
+}
+
+static int
+handle_vt_switch(struct weston_launch *wl)
+{
+	struct weston_launcher_event message;
+	ssize_t len;
+
+	if (wl->vt_state == VT_HAS_VT) {
+		wl->vt_state = VT_PENDING_CONFIRM;
+		message.header.opcode = WESTON_LAUNCHER_SERVER_REQUEST_VT_SWITCH;
+	} else if (wl->vt_state == VT_NOT_HAVE_VT) {
+		wl->vt_state = VT_HAS_VT;
+		ioctl(wl->tty, VT_RELDISP, VT_ACKACQ);
+
+		if (wl->drm_fd != -1) {
+			int ret;
+
+			ret = drmSetMaster(wl->drm_fd);
+			if (ret < 0) {
+				fprintf(stderr, "failed to become DRM master: %m\n");
+				/* This is very, very bad, and the compositor will crash soon,
+				   but oh well... */
+			} else if (wl->verbose) {
+				fprintf(stderr, "became DRM master after VT switch\n");
+			}
+		}
+
+		message.header.opcode = WESTON_LAUNCHER_SERVER_VT_ENTER;
+	} else
+		return -1;
+
+	message.detail = 0;
+
+	do {
+		len = send(wl->sock[0], &message, sizeof(message), 0);
+	} while (len < 0 && errno == EINTR);
+
+	return 0;
+}
+
+
+static int
+handle_signal(struct weston_launch *wl)
+{
+	struct signalfd_siginfo sig;
+	int pid, status, ret;
+
+	if (read(wl->signalfd, &sig, sizeof sig) != sizeof sig) {
+		error(0, errno, "reading signalfd failed");
+		return -1;
+	}
+
+	switch (sig.ssi_signo) {
+	case SIGCHLD:
+		pid = waitpid(-1, &status, 0);
+		if (pid == wl->child) {
+			wl->child = 0;
+			if (WIFEXITED(status))
+				ret = WEXITSTATUS(status);
+			else if (WIFSIGNALED(status))
+				/*
+				 * If weston dies because of signal N, we
+				 * return 10+N. This is distinct from
+				 * weston-launch dying because of a signal
+				 * (128+N).
+				 */
+				ret = 10 + WTERMSIG(status);
+			else
+				ret = 0;
+			quit(wl, ret);
+		}
+		break;
+	case SIGTERM:
+	case SIGINT:
+		if (wl->child)
+			kill(wl->child, sig.ssi_signo);
+		break;
+	case SIGUSR1:
+		return handle_vt_switch(wl);
+	default:
+		return -1;
+	}
+
+	return 0;
+}
+
+static int
+setup_tty(struct weston_launch *wl)
+{
+	struct stat buf;
+	struct termios raw_attributes;
+	struct vt_mode mode = { 0 };
+	char *session, *tty;
+	char path[PATH_MAX];
+	int ok;
+
+	ok = sd_pid_get_session(getpid(), &session);
+	if (ok < 0)
+	  error(1, -ok, "could not determine current session");
+
+	ok = sd_session_get_tty(session, &tty);
+	if (ok == 0) {
+		snprintf(path, PATH_MAX, "/dev/%s", tty);
+		wl->tty = open(path, O_RDWR | O_NOCTTY | O_CLOEXEC);
+		free(tty);
+#ifdef HAVE_SD_SESSION_GET_VT
+	} else if (ok == -ENOENT) {
+		/* Negative errnos are cool, right?
+		   So cool that we can't distinguish "session not found"
+		   from "key does not exist in the session file"!
+		   Let's assume the latter, as we got the value
+		   from sd_pid_get_session()...
+		*/
+
+		ok = sd_session_get_vt(session, &tty);
+		if (ok < 0)
+			error(1, -ok, "could not determine current TTY");
+
+		snprintf(path, PATH_MAX, "/dev/tty%s", tty);
+		wl->tty = open(path, O_RDWR | O_NOCTTY | O_CLOEXEC);
+		free(tty);
+#endif
+	} else
+		error(1, -ok, "could not determine current TTY");
+
+	if (wl->tty < 0)
+		error(1, errno, "failed to open tty");
+
+	if (fstat(wl->tty, &buf) < 0)
+		error(1, errno, "stat %s failed", path);
+
+	if (major(buf.st_rdev) != TTY_MAJOR)
+		error(1, 0, "invalid tty device: %s", path);
+
+	wl->ttynr = minor(buf.st_rdev);
+
+	if (tcgetattr(wl->tty, &wl->terminal_attributes) < 0)
+		error(1, errno, "could not get terminal attributes");
+
+	/* Ignore control characters and disable echo */
+	raw_attributes = wl->terminal_attributes;
+	cfmakeraw(&raw_attributes);
+
+	/* Fix up line endings to be normal (cfmakeraw hoses them) */
+	raw_attributes.c_oflag |= OPOST | OCRNL;
+	/* Don't generate ttou signals */
+	raw_attributes.c_oflag &= ~TOSTOP;
+
+	if (tcsetattr(wl->tty, TCSANOW, &raw_attributes) < 0)
+	        error(1, errno, "could not put terminal into raw mode");
+
+	ioctl(wl->tty, KDGKBMODE, &wl->kb_mode);
+	ok = ioctl(wl->tty, KDSKBMODE, K_OFF);
+	if (ok < 0) {
+		ok = ioctl(wl->tty, KDSKBMODE, K_RAW);
+		if (ok < 0)
+			error(1, errno, "failed to set keyboard mode on tty");
+	}
+
+	ok = ioctl(wl->tty, KDSETMODE, KD_GRAPHICS);
+	if (ok < 0)
+		error(1, errno, "failed to set KD_GRAPHICS mode on tty");
+
+	wl->vt_state = VT_HAS_VT;
+	mode.mode = VT_PROCESS;
+	mode.relsig = SIGUSR1;
+	mode.acqsig = SIGUSR1;
+	ok = ioctl(wl->tty, VT_SETMODE, &mode);
+	if (ok < 0)
+		error(1, errno, "failed to take control of vt handling");
+
+	return 0;
+}
+
+static void
+drop_privileges(struct weston_launch *wl)
+{
+	if (setgid(wl->pw->pw_gid) < 0 ||
+#ifdef HAVE_INITGROUPS
+	    initgroups(wl->pw->pw_name, wl->pw->pw_gid) < 0 ||
+#endif
+	    setuid(wl->pw->pw_uid) < 0)
+		error(1, errno, "dropping privileges failed");
+}
+
+static void
+launch_compositor(struct weston_launch *wl, int argc, char *argv[])
+{
+	char command[PATH_MAX];
+	char *child_argv[MAX_ARGV_SIZE];
+	sigset_t mask;
+	int i;
+
+	if (wl->verbose)
+		printf("weston-launch: spawned weston with pid: %d\n", getpid());
+
+	drop_privileges(wl);
+
+	setenv_fd("WESTON_LAUNCHER_SOCK", wl->sock[1]);
+	setenv("LD_LIBRARY_PATH", LIBDIR, 1);
+	unsetenv("DISPLAY");
+
+	/* Do not give our signal mask to the new process. */
+	sigemptyset(&mask);
+	sigaddset(&mask, SIGTERM);
+	sigaddset(&mask, SIGCHLD);
+	sigaddset(&mask, SIGINT);
+	sigaddset(&mask, SIGUSR1);
+	sigprocmask(SIG_UNBLOCK, &mask, NULL);
+
+	snprintf (command, PATH_MAX, "%s \"$@\"", argv[0]);
+
+	child_argv[0] = wl->pw->pw_shell;
+	child_argv[1] = "-l";
+	child_argv[2] = "-c";
+	child_argv[3] = command;
+	for (i = 0; i < argc; ++i)
+		child_argv[4 + i] = argv[i];
+	child_argv[4 + i] = NULL;
+
+	execv(child_argv[0], child_argv);
+	error(1, errno, "exec failed");
+}
+
+static void
+help(const char *name)
+{
+	fprintf(stderr, "Usage: %s [args...] [-- [weston args..]]\n", name);
+	fprintf(stderr, "  -u, --user      Start session as specified username\n");
+	fprintf(stderr, "  -v, --verbose   Be verbose\n");
+	fprintf(stderr, "  -h, --help      Display this help message\n");
+}
+
+int
+main(int argc, char *argv[])
+{
+	struct weston_launch wl;
+	int i, c;
+	struct option opts[] = {
+		{ "verbose", no_argument,       NULL, 'v' },
+		{ "help",    no_argument,       NULL, 'h' },
+		{ 0,         0,                 NULL,  0  }
+	};	
+
+	memset(&wl, 0, sizeof wl);
+	wl.drm_fd = -1;
+
+	while ((c = getopt_long(argc, argv, "u:t::vh", opts, &i)) != -1) {
+		switch (c) {
+		case 'v':
+			wl.verbose = 1;
+			break;
+		case 'h':
+			help("weston-launch");
+			exit(EXIT_FAILURE);
+		}
+	}
+
+	if ((argc - optind) > (MAX_ARGV_SIZE - 6))
+		error(1, E2BIG, "Too many arguments to pass to weston");
+
+	if (optind >= argc)
+		error(1, 0, "Expected program argument");
+	if (strcmp (argv[optind], "mutter-wayland") &&
+	    strcmp (argv[optind], "gnome-shell-wayland"))
+	  error(1, 0, "mutter-launch can only be used to launch mutter or gnome-shell");
+
+	wl.pw = getpwuid(getuid());
+	if (wl.pw == NULL)
+		error(1, errno, "failed to get username");
+
+	if (!weston_launch_allowed(&wl))
+		error(1, 0, "Permission denied. You must run from an active and local (systemd) session.");
+
+	if (setup_tty(&wl) < 0)
+		exit(EXIT_FAILURE);
+
+	if (setup_launcher_socket(&wl) < 0)
+		exit(EXIT_FAILURE);
+
+	if (setup_signals(&wl) < 0)
+		exit(EXIT_FAILURE);
+
+	wl.child = fork();
+	if (wl.child == -1) {
+		error(1, errno, "fork failed");
+		exit(EXIT_FAILURE);
+	}
+
+	if (wl.child == 0)
+		launch_compositor(&wl, argc - optind, argv + optind);
+
+	close(wl.sock[1]);
+
+	while (1) {
+		struct pollfd fds[2];
+		int n;
+
+		fds[0].fd = wl.sock[0];
+		fds[0].events = POLLIN;
+		fds[1].fd = wl.signalfd;
+		fds[1].events = POLLIN;
+
+		n = poll(fds, 2, -1);
+		if (n < 0)
+			error(0, errno, "poll failed");
+		if (fds[0].revents & POLLIN)
+			handle_socket_msg(&wl);
+		if (fds[1].revents)
+			handle_signal(&wl);
+	}
+
+	return 0;
+}

src/wayland/weston-launch.h

@@ -0,0 +1,69 @@
+/*
+ * Copyright © 2012 Benjamin Franzke
+ *             2013 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of the copyright holders not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission.  The copyright holders make
+ * no representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _WESTON_LAUNCH_H_
+#define _WESTON_LAUNCH_H_
+
+enum weston_launcher_message_type {
+	WESTON_LAUNCHER_REQUEST,
+	WESTON_LAUNCHER_EVENT,
+};
+
+enum weston_launcher_opcode {
+	WESTON_LAUNCHER_OPEN              = (1 << 1 | WESTON_LAUNCHER_REQUEST),
+	WESTON_LAUNCHER_DRM_SET_FD        = (2 << 1 | WESTON_LAUNCHER_REQUEST),
+	WESTON_LAUNCHER_ACTIVATE_VT       = (3 << 1 | WESTON_LAUNCHER_REQUEST),
+	WESTON_LAUNCHER_CONFIRM_VT_SWITCH = (4 << 1 | WESTON_LAUNCHER_REQUEST),
+};
+
+enum weston_launcher_server_opcode {
+	WESTON_LAUNCHER_SERVER_REQUEST_VT_SWITCH = (1 << 1 | WESTON_LAUNCHER_EVENT),
+	WESTON_LAUNCHER_SERVER_VT_ENTER          = (2 << 1 | WESTON_LAUNCHER_EVENT),
+};
+
+struct weston_launcher_message {
+	int opcode;
+};
+
+struct weston_launcher_open {
+	struct weston_launcher_message header;
+	int flags;
+	char path[0];
+};
+
+struct weston_launcher_activate_vt {
+	struct weston_launcher_message header;
+	int vt;
+};
+
+struct weston_launcher_reply {
+	struct weston_launcher_message header;
+	int ret;
+};
+
+struct weston_launcher_event {
+	struct weston_launcher_message header;
+	int detail; /* unused, but makes sure replies and events are serialized the same */
+};
+
+#endif

src/xrandr.xml

@@ -0,0 +1,293 @@
+<!DOCTYPE node PUBLIC
+'-//freedesktop//DTD D-BUS Object Introspection 1.0//EN'
+'http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd'>
+<node>
+  <!--
+      org.gnome.Mutter.DisplayConfig:
+      @short_description: display configuration interface
+
+      This interface is used by mutter and gnome-settings-daemon
+      to apply multiple monitor configuration.
+  -->
+
+  <interface name="org.gnome.Mutter.DisplayConfig">
+
+    <!--
+        GetResources:
+	@serial: configuration serial
+	@crtcs: available CRTCs
+	@outputs: available outputs
+	@modes: available modes
+	@max_screen_width:
+	@max_screen_height:
+
+        Retrieves the current layout of the hardware.
+
+        @serial is an unique identifier representing the current state
+        of the screen. It must be passed back to ApplyConfiguration()
+	and will be increased for every configuration change (so that
+	mutter can detect that the new configuration is based on old
+	state).
+
+	A CRTC (CRT controller) is a logical monitor, ie a portion
+	of the compositor coordinate space. It might correspond
+	to multiple monitors, when in clone mode, but not that
+	it is possible to implement clone mode also by setting different
+	CRTCs to the same coordinates.
+
+	The number of CRTCs represent the maximum number of monitors
+	that can be set to expand and it is a HW constraint; if more
+	monitors are connected,	then necessarily some will clone. This
+	is complementary to the concept of the encoder (not exposed in
+	the API), which groups outputs that necessarily will show the
+	same image (again a HW constraint).
+
+	A CRTC is represented by a DBus structure with the following
+	layout:
+	* u ID: the ID in the API of this CRTC
+	* x winsys_id: the low-level ID of this CRTC (which might
+	               be a XID, a KMS handle or something entirely
+		       different)
+	* i x, y, width, height: the geometry of this CRTC
+	                         (might be invalid if the CRTC is not in
+				 use)
+	* i current_mode: the current mode of the CRTC, or -1 if this
+	                  CRTC is not used
+			  Note: the size of the mode will always correspond
+			  to the width and height of the CRTC
+	* u current_transform: the current transform (espressed according
+	                       to the wayland protocol)
+	* au transforms: all possible transforms
+	* a{sv} properties: other high-level properties that affect this
+	                    CRTC; they are not necessarily reflected in
+			    the hardware.
+			    No property is specified in this version of the API.
+
+        Note: all geometry information refers to the untransformed
+	display.
+
+	An output represents a physical screen, connected somewhere to
+	the computer. Floating connectors are not exposed in the API.
+	An output is a DBus struct with the following fields:
+	* u ID: the ID in the API
+	* x winsys_id: the low-level ID of this output (XID or KMS handle)
+	* i current_crtc: the CRTC that is currently driving this output,
+	                  or -1 if the output is disabled
+	* au possible_crtcs: all CRTCs that can control this output
+	* s name: the name of the connector to which the output is attached
+	          (like VGA1 or HDMI)
+	* au modes: valid modes for this output
+	* au clones: valid clones for this output, ie other outputs that
+	             can be assigned the same CRTC as this one; if you
+	             want to mirror two outputs that don't have each other
+	             in the clone list, you must configure two different
+	             CRTCs for the same geometry
+	* a{sv} properties: other high-level properties that affect this
+	                    output; they are not necessarily reflected in
+			    the hardware.
+			    Known properties:
+                            - "vendor" (s): (readonly) the human readable name
+                                            of the manufacturer
+                            - "product" (s): (readonly) the human readable name
+                                             of the display model
+                            - "serial" (s): (readonly) the serial number of this
+                                            particular hardware part
+			    - "display-name" (s): (readonly) a human readable name
+			                          of this output, to be shown in the UI
+	                    - "backlight" (i): (readonly, use the specific interface)
+                                               the backlight value as a percentage
+                                               (-1 if not supported)
+			    - "primary" (b): whether this output is primary
+			                     or not
+			    - "presentation" (b): whether this output is
+			                          for presentation only
+			    Note: properties might be ignored if not consistenly
+			    applied to all outputs in the same clone group. In
+			    general, it's expected that presentation or primary
+			    outputs will not be cloned.
+
+        A mode represents a set of parameters that are applied to
+	each output, such as resolution and refresh rate. It is a separate
+	object so that it can be referenced by CRTCs and outputs.
+	Multiple outputs in the same CRTCs must all have the same mode.
+	A mode is exposed as:
+	* u ID: the ID in the API
+	* x winsys_id: the low-level ID of this mode
+	* u width, height: the resolution
+	* d frequency: refresh rate
+
+        Output and modes are read-only objects (except for output properties),
+	they can change only in accordance to HW changes (such as hotplugging
+	a monitor), while CRTCs can be changed with ApplyConfiguration().
+
+        XXX: actually, if you insist enough, you can add new modes
+	through xrandr command line or the KMS API, overriding what the
+	kernel driver and the EDID say.
+	Usually, it only matters with old cards with broken drivers, or
+	old monitors with broken EDIDs, but it happens more often with
+	projectors (if for example the kernel driver doesn't add the
+	640x480 - 800x600 - 1024x768 default modes). Probably something
+	that we need to handle in mutter anyway.
+    -->
+    <method name="GetResources">
+      <arg name="serial" direction="out" type="u" />
+      <arg name="crtcs" direction="out" type="a(uxiiiiiuaua{sv})" />
+      <arg name="outputs" direction="out" type="a(uxiausauaua{sv})" />
+      <arg name="modes" direction="out" type="a(uxuud)" />
+      <arg name="max_screen_width" direction="out" type="i" />
+      <arg name="max_screen_height" direction="out" type="i" />
+    </method>
+
+    <!--
+        ApplyConfiguration:
+	@serial: configuration serial
+	@persistent: whether this configuration should be saved on disk
+	@crtcs: new data for CRTCs
+	@outputs: new data for outputs
+
+	Applies the requested configuration changes.
+
+	@serial must match the serial from the last GetResources() call,
+	or org.freedesktop.DBus.AccessDenied will be generated.
+
+	If @persistent is true, mutter will attempt to replicate this
+	configuration the next time this HW layout appears.
+
+	@crtcs represents the new logical configuration, as a list
+	of structures containing:
+	- u ID: the API ID from the corresponding GetResources() call
+	- i new_mode: the API ID of the new mode to configure the CRTC
+	              with, or -1 if the CRTC should be disabled
+        - i x, y: the new coordinates of the top left corner
+	          the geometry will be completed with the size information
+		  from @new_mode
+        - u transform: the desired transform
+	- au outputs: the API ID of outputs that should be assigned to
+	              this CRTC
+        - a{sv} properties: properties whose value should be changed
+
+	Note: CRTCs not referenced in the array will be	disabled.
+
+	@outputs represent the output property changes as:
+	- u ID: the API ID of the output to change
+	- a{sv} properties: properties whose value should be changed
+
+	Note: both for CRTCs and outputs, properties not included in
+	the dictionary will not be changed.
+
+	Note: unrecognized properties will have no effect, but if the
+	configuration change succeeds the property will be reported
+	by the next GetResources() call, and if @persistent is true,
+	it will also be saved to disk.
+
+	If the configuration is invalid according to the previous
+	GetResources() call, for example because a CRTC references
+	an output it cannot drive, or not all outputs support the
+	chosen mode, the error org.freedesktop.DBus.InvalidArgs will
+	be generated.
+
+	If the configuration cannot be applied for any other reason
+	(eg. the screen size would exceed texture limits), the error
+	org.freedesktop.DBus.Error.LimitsExceeded will be generated.
+    -->
+    <method name="ApplyConfiguration">
+      <arg name="serial" direction="in" type="u" />
+      <arg name="persistent" direction="in" type="b" />
+      <arg name="crtcs" direction="in" type="a(uiiiuaua{sv})" />
+      <arg name="outputs" direction="in" type="a(ua{sv})" />
+    </method>
+
+    <!--
+        ChangeBacklight:
+	@serial: configuration serial
+	@output: the API id of the output
+	@value: the new backlight value
+
+	Changes the backlight of @output to @value, which is
+	expressed as a percentage and rounded to the HW limits.
+
+        Returns the new value after rounding.
+    -->
+    <method name="ChangeBacklight">
+      <arg name="serial" direction="in" type="u" />
+      <arg name="output" direction="in" type="u" />
+      <arg name="value" direction="in" type="i" />
+      <arg name="new_value" direction="out" type="i" />
+    </method>
+
+    <!--
+        GetCrtcGamma:
+	@serial: configuration serial
+	@crtc: API id of the crtc
+	@red: red gamma ramp
+	@green: green gamma ramp
+	@blue: blue gamma ramp
+
+	Requests the current gamma ramps of @crtc.
+    -->
+    <method name="GetCrtcGamma">
+      <arg name="serial" direction="in" type="u" />
+      <arg name="crtc" direction="in" type="u" />
+      <arg name="red" direction="out" type="aq" />
+      <arg name="green" direction="out" type="aq" />
+      <arg name="blue" direction="out" type="aq" />
+    </method>
+
+    <!--
+        SetCrtcGamma:
+	@serial: configuration serial
+	@crtc: API id of the crtc
+	@red: red gamma ramp
+	@green: green gamma ramp
+	@blue: blue gamma ramp
+
+	Changes the gamma ramps of @crtc.
+    -->
+    <method name="SetCrtcGamma">
+      <arg name="serial" direction="in" type="u" />
+      <arg name="crtc" direction="in" type="u" />
+      <arg name="red" direction="in" type="aq" />
+      <arg name="green" direction="in" type="aq" />
+      <arg name="blue" direction="in" type="aq" />
+    </method>
+
+    <!--
+        PowerSaveMode:
+
+	Contains the current power saving mode for the screen, and
+	allows changing it.
+
+        Possible values:
+	- 0: on
+	- 1: standby
+	- 2: suspend
+	- 3: off
+	- -1: unknown (unsupported)
+
+        A client should not attempt to change the powersave mode
+	from -1 (unknown) to any other value, and viceversa.
+	Note that the actual effects of the different values
+	depend on the hardware and the kernel driver in use, and
+	it's perfectly possible that all values different than on
+	have the same effect.
+	Also, setting the PowerSaveMode to 3 (off) may or may
+	not have the same effect as disabling all outputs by
+	setting no CRTC on them with ApplyConfiguration(), and
+	may or may not cause a configuration change.
+
+        Also note that this property might become out of date
+	if changed through different means (for example using the
+	XRandR interface directly).
+    -->
+    <property name="PowerSaveMode" type="i" access="readwrite" />
+
+    <!--
+        MonitorsChanged:
+
+	The signal is emitted every time the screen configuration
+	changes.
+	The client should then call GetResources() to read the new layout.
+    -->
+    <signal name="MonitorsChanged" />
+  </interface>
+</node>