shaped-texture: Turn blending off when drawing entirely opaque regions

When drawing entirely opaque regions, we traditionally kept blending on simply because it made the code more convenient and obvious to handle. However, this can cause lots of performance issues on GPUs that aren't too powerful, as they have to readback the buffer underneath. Keep track of the opaque region set by windows (through _NET_WM_OPAQUE_REGION, Wayland opaque_region hints, standard RGB32 frame masks or similar), and draw those rectangles separately through a different path with blending turned off. https://bugzilla.gnome.org/show_bug.cgi?id=706930
shaped-texture: Use non-deprecated cogl APIs
2013-08-28 13:23:09 -04:00 · 2013-08-28 13:23:09 -04:00 · 2013-08-28 13:23:08 -04:00 · 2013-08-28 13:18:04 -04:00 · 2013-08-28 18:04:01 +02:00 · 2013-08-28 17:45:25 +02:00
81 changed files with 16004 additions and 1687 deletions
--- a/.gitignore
+++ b/.gitignore
@ -23,7 +23,7 @@ src/50-mutter-navigation.xml
 src/50-mutter-system.xml
 src/50-mutter-windows.xml
 src/mutter-wm.desktop
-src/mutter.desktop
+src/mutter-wayland.desktop
 *.o
 *.a
 *.lo
@ -46,10 +46,10 @@ POTFILES
 po/*.pot
 50-metacity-desktop-key.xml
 50-metacity-key.xml
-libmutter.pc
-mutter
+libmutter-wayland.pc
+mutter-wayland
 mutter-theme-viewer
-mutter.desktop
+mutter-wayland.desktop
 org.gnome.mutter.gschema.valid
 org.gnome.mutter.gschema.xml
 testasyncgetprop
@ -74,6 +74,8 @@ src/mutter-enum-types.[ch]
 src/stamp-mutter-enum-types.h
 src/mutter-marshal.[ch]
 src/stamp-mutter-marshal.h
+src/meta-dbus-xrandr.[ch]
+src/meta-dbus-idle-monitor.[ch]
 src/mutter-plugins.pc
 doc/reference/*.args
 doc/reference/*.bak
--- a/Makefile.am
+++ b/Makefile.am
@ -1,5 +1,5 @@

-SUBDIRS=src po doc
+SUBDIRS=src protocol data po doc

 EXTRA_DIST = HACKING MAINTAINERS rationales.txt

--- a/26
+++ b/26
@ -1,3 +1,29 @@
+3.9.90
+======
+* First release from the wayland branch, includes basic support for running
+  as a wayland compositor [Robert, Neil, Giovanni]
+* Add support for _GTK_FRAME_EXTENTS [Jasper; #705766]
+* Fix quick consecutive <super> presses breaking keyboard input [Alban; #666101]
+* Work towards running as wayland compositor [Giovanni]
+ - Add DBus API for display configuration
+   [#705670, #706231, #706233, #706322, #706382]
+ - Add abstraction layer for cursor tracking [#705911]
+ - Add support for plugin modality under wayland [#705917]
+* Disable GTK+ scaling [Alexander; #706388]
+* Disable blending while updating tower [Robert]
+* Misc bug fixes and cleanups [Adel, Jasper, Giovanni, Colin, Rico, Florian;
+  #703332, #704437, #706207]
+
+Contributors:
+  Robert Bragg, Giovanni Campagna, Alban Crequy, Adel Gadllah,
+  Alexander Larsson, Florian Müllner, Jasper St. Pierre, Neil Roberts,
+  Rico Tzschichholz, Colin Walters
+
+Translations:
+  Jiro Matsuzawa [ja], Kjartan Maraas [nb], Matej Urbančič [sl],
+  Marek Černocký [cs], Daniel Mustieles [es], Rafael Ferreira [pt_BR],
+  Yaron Shahrabani [he], Ján Kyselica [sk]
+
 3.9.5
 =====
 * Don't select for touch events on the stage [Jasper; #697192]
--- a/autogen.sh
+++ b/autogen.sh
@ -5,7 +5,7 @@ srcdir=`dirname $0`
 test -z "$srcdir" && srcdir=.

 PKG_NAME="mutter"
-REQUIRED_AUTOMAKE_VERSION=1.10
+REQUIRED_AUTOMAKE_VERSION=1.13

 (test -f $srcdir/configure.ac \
  && test -d $srcdir/src) || {
--- a/configure.ac
+++ b/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], [5])
+m4_define([mutter_micro_version], [90])

 m4_define([mutter_version],
          [mutter_major_version.mutter_minor_version.mutter_micro_version])
@ -15,10 +15,14 @@ AC_INIT([mutter], [mutter_version],
 AC_CONFIG_SRCDIR(src/core/display.c)
 AC_CONFIG_HEADERS(config.h)

-AM_INIT_AUTOMAKE([1.11 no-dist-gzip dist-xz tar-ustar])
+AM_INIT_AUTOMAKE([1.11 foreign no-dist-gzip dist-xz tar-ustar])
 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])],)
 AM_MAINTAINER_MODE([enable])

+# Change pkglibdir and pkgdatadir to mutter-wayland instead of mutter
+PACKAGE="mutter-wayland"
+AC_SUBST([PACKAGE], [$PACKAGE])
+
 MUTTER_MAJOR_VERSION=mutter_major_version
 MUTTER_MINOR_VERSION=mutter_minor_version
 MUTTER_MICRO_VERSION=mutter_micro_version
@ -34,7 +38,7 @@ AC_SUBST(MUTTER_PLUGIN_DIR)
 # Honor aclocal flags
 AC_SUBST(ACLOCAL_AMFLAGS, "\${ACLOCAL_FLAGS}")

-GETTEXT_PACKAGE=mutter
+GETTEXT_PACKAGE=mutter-wayland
 AC_SUBST(GETTEXT_PACKAGE)
 AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GETTEXT_PACKAGE",[Name of default gettext domain])

@ -75,6 +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
@ -113,6 +119,21 @@ AC_ARG_ENABLE(shape,
                 [disable mutter's use of the shaped window extension]),,
  enable_shape=auto)

+## Wayland support requires the xserver.xml protocol extension found in the weston
+## repository but since there aren't currently established conventions for
+## installing and discovering these we simply require a location to be given
+## explicitly...
+AC_ARG_WITH([wayland-protocols],
+            [AS_HELP_STRING([--with-wayland-protocols], [Location for wayland extension protocol specs])],
+            [
+            ],
+            [])
+
+AC_ARG_WITH([xwayland-path],
+            [AS_HELP_STRING([--with-xwayland-path], [Absolute path for an X Wayland server])],
+            [XWAYLAND_PATH="$withval"],
+            [XWAYLAND_PATH="$bindir/Xorg"])
+
 AM_GLIB_GNU_GETTEXT

 ## here we get the flags we'll actually use
@ -196,6 +217,16 @@ if test x$have_xcursor = xyes; then
  AC_DEFINE(HAVE_XCURSOR, , [Building with Xcursor support])
 fi

+# We always build with wayland enabled
+AC_DEFINE(HAVE_WAYLAND, , [Building with Wayland support])
+
+AC_PATH_PROG([WAYLAND_SCANNER],[wayland-scanner],[no])
+AS_IF([test "x$WAYLAND_SCANNER" = "xno"],
+  AC_MSG_ERROR([Could not find wayland-scanner in your PATH, required for parsing wayland extension protocols]))
+AC_SUBST([WAYLAND_SCANNER])
+AC_SUBST(XWAYLAND_PATH)
+
+MUTTER_PC_MODULES="$MUTTER_PC_MODULES wayland-server"
 PKG_CHECK_MODULES(MUTTER, $MUTTER_PC_MODULES)

 PKG_CHECK_EXISTS([xi >= 1.6.99.1],
@ -433,9 +464,10 @@ doc/man/Makefile
 doc/reference/Makefile
 doc/reference/meta-docs.sgml
 src/Makefile
-src/libmutter.pc
-src/mutter-plugins.pc
+src/libmutter-wayland.pc
 src/compositor/plugins/Makefile
+protocol/Makefile
+data/Makefile
 po/Makefile.in
 ])

@ -451,7 +483,7 @@ fi

 dnl ==========================================================================
 echo "
-mutter-$VERSION
+mutter-wayland-$VERSION

 	prefix:                   ${prefix}
 	source code location:	  ${srcdir}
--- a/data/Makefile.am
+++ b/data/Makefile.am
@ -0,0 +1,3 @@
+defaultcursordir = $(pkgdatadir)/cursors
+
+dist_defaultcursor_DATA = left_ptr.png
--- a/data/left_ptr.png
+++ b/data/left_ptr.png
--- a/doc/reference/Makefile.am
+++ b/doc/reference/Makefile.am
@ -140,7 +140,7 @@ expand_content_files= \
 # e.g. GTKDOC_CFLAGS=-I$(top_srcdir) -I$(top_builddir) $(GTK_DEBUG_FLAGS)
 # e.g. GTKDOC_LIBS=$(top_builddir)/gtk/$(gtktargetlib)
 GTKDOC_CFLAGS=$(MUTTER_CFLAGS)
-GTKDOC_LIBS=$(MUTTER_LIBS) $(top_builddir)/src/libmutter.la
+GTKDOC_LIBS=$(MUTTER_LIBS) $(top_builddir)/src/libmutter-wayland.la

 # This includes the standard gtk-doc make rules, copied by gtkdocize.
 include $(top_srcdir)/gtk-doc.make
--- a/po/POTFILES.in
+++ b/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
--- a/protocol/Makefile.am
+++ b/protocol/Makefile.am
@ -0,0 +1 @@
+EXTRA_DIST = xserver.xml
--- a/protocol/xserver.xml
+++ b/protocol/xserver.xml
@ -0,0 +1,18 @@
+<protocol name="xserver">
+
+  <interface name="xserver" version="1">
+    <request name="set_window_id">
+      <arg name="surface" type="object" interface="wl_surface"/>
+      <arg name="id" type="uint"/>
+    </request>
+
+    <event name="client">
+      <arg name="fd" type="fd"/>
+    </event>
+
+    <event name="listen_socket">
+      <arg name="fd" type="fd"/>
+    </event>
+  </interface>
+
+</protocol>
--- a/src/Makefile.am
+++ b/src/Makefile.am
@ -1,7 +1,7 @@
 # Flag build for parallelism; see https://savannah.gnu.org/patch/?6905
 .AUTOPARALLEL:

-lib_LTLIBRARIES = libmutter.la
+lib_LTLIBRARIES = libmutter-wayland.la

 SUBDIRS=compositor/plugins

@ -10,6 +10,7 @@ INCLUDES=								\
 	-DCOGL_ENABLE_EXPERIMENTAL_API					\
 	-DCOGL_ENABLE_EXPERIMENTAL_2_0_API                              \
 	$(MUTTER_CFLAGS)						\
+	-I$(top_builddir)						\
 	-I$(srcdir)							\
 	-I$(srcdir)/core						\
 	-I$(srcdir)/ui							\
@ -29,11 +30,21 @@ INCLUDES=								\
 	-DMUTTER_PLUGIN_DIR=\"@MUTTER_PLUGIN_DIR@\"			\
 	-DGETTEXT_PACKAGE=\"$(GETTEXT_PACKAGE)\"

-mutter_built_sources = \
-	mutter-enum-types.h \
-	mutter-enum-types.c
+INCLUDES += \
+	-I$(srcdir)/wayland						\
+	-I$(builddir)/wayland						\
+	-DXWAYLAND_PATH='"@XWAYLAND_PATH@"'

-libmutter_la_SOURCES =				\
+mutter_built_sources = \
+	$(dbus_idle_built_sources)		\
+	$(dbus_xrandr_built_sources)		\
+	mutter-enum-types.h 			\
+	mutter-enum-types.c			\
+	wayland/xserver-protocol.c		\
+	wayland/xserver-server-protocol.h	\
+	wayland/xserver-client-protocol.h
+
+libmutter_wayland_la_SOURCES =			\
 	core/async-getprop.c			\
 	core/async-getprop.h			\
 	core/barrier.c				\
@ -62,6 +73,7 @@ libmutter_la_SOURCES =				\
 	compositor/meta-shadow-factory.c	\
 	compositor/meta-shadow-factory-private.h	\
 	compositor/meta-shaped-texture.c	\
+	compositor/meta-shaped-texture-private.h 	\
 	compositor/meta-texture-rectangle.c	\
 	compositor/meta-texture-rectangle.h	\
 	compositor/meta-texture-tower.c		\
@ -94,6 +106,8 @@ libmutter_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				\
@ -110,6 +124,15 @@ libmutter_la_SOURCES =				\
 	core/keybindings.c			\
 	core/keybindings-private.h		\
 	core/main.c				\
+	core/meta-cursor-tracker.c		\
+	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-private.h			\
+	core/monitor-xrandr.c			\
 	core/mutter-Xatomtype.h			\
 	core/place.c				\
 	core/place.h				\
@ -158,8 +181,24 @@ libmutter_la_SOURCES =				\
 	ui/ui.c					\
 	$(mutter_built_sources)

-libmutter_la_LDFLAGS = -no-undefined
-libmutter_la_LIBADD  = $(MUTTER_LIBS)
+libmutter_wayland_la_SOURCES +=			\
+	wayland/meta-wayland.c			\
+	wayland/meta-wayland-private.h		\
+	wayland/meta-xwayland-private.h		\
+	wayland/meta-xwayland.c			\
+	wayland/meta-wayland-data-device.c      \
+	wayland/meta-wayland-data-device.h      \
+	wayland/meta-wayland-keyboard.c		\
+	wayland/meta-wayland-keyboard.h		\
+	wayland/meta-wayland-pointer.c		\
+	wayland/meta-wayland-pointer.h		\
+	wayland/meta-wayland-seat.c		\
+	wayland/meta-wayland-seat.h		\
+	wayland/meta-wayland-stage.h		\
+	wayland/meta-wayland-stage.c
+
+libmutter_wayland_la_LDFLAGS = -no-undefined
+libmutter_wayland_la_LIBADD  = $(MUTTER_LIBS)

 # Headers installed for plugins; introspected information will
 # be extracted into Mutter-<version>.gir
@ -178,6 +217,8 @@ libmutterinclude_base_headers =		\
 	meta/meta-background-actor.h		\
 	meta/meta-background-group.h		\
 	meta/meta-background.h			\
+	meta/meta-cursor-tracker.h		\
+	meta/meta-idle-monitor.h		\
 	meta/meta-plugin.h			\
 	meta/meta-shaped-texture.h		\
 	meta/meta-shadow-factory.h		\
@ -195,16 +236,16 @@ libmutterinclude_base_headers =		\
 libmutterinclude_extra_headers =		\
 	meta/atomnames.h

-libmutterincludedir = $(includedir)/mutter/meta
+libmutterincludedir = $(includedir)/mutter-wayland/meta

 libmutterinclude_HEADERS =			\
 	$(libmutterinclude_base_headers)	\
 	$(libmutterinclude_extra_headers)

-bin_PROGRAMS=mutter
+bin_PROGRAMS=mutter-wayland

-mutter_SOURCES = core/mutter.c
-mutter_LDADD = $(MUTTER_LIBS) libmutter.la
+mutter_wayland_SOURCES = core/mutter.c
+mutter_wayland_LDADD = $(MUTTER_LIBS) libmutter-wayland.la

 if HAVE_INTROSPECTION
 include $(INTROSPECTION_MAKEFILE)
@ -226,15 +267,15 @@ typelib_DATA = Meta-$(api_version).typelib

 INTROSPECTION_GIRS = Meta-$(api_version).gir

-Meta-$(api_version).gir: libmutter.la
+Meta-$(api_version).gir: libmutter-wayland.la
@META_GIR@_INCLUDES = GObject-2.0 GDesktopEnums-3.0 Gdk-3.0 Gtk-3.0 Clutter-1.0 xlib-2.0 xfixes-4.0 Cogl-1.0
-@META_GIR@_EXPORT_PACKAGES = libmutter
+@META_GIR@_EXPORT_PACKAGES = libmutter-wayland
@META_GIR@_CFLAGS = $(INCLUDES)
-@META_GIR@_LIBS = libmutter.la
+@META_GIR@_LIBS = libmutter-wayland.la
@META_GIR@_FILES =				\
 	mutter-enum-types.h			\
 	$(libmutterinclude_base_headers)	\
-	$(filter %.c,$(libmutter_la_SOURCES))
+	$(filter %.c,$(libmutter_wayland_la_SOURCES))
@META_GIR@_SCANNERFLAGS = --warn-all --warn-error

 endif
@ -245,22 +286,17 @@ testasyncgetprop_SOURCES = core/testasyncgetprop.c

 noinst_PROGRAMS=testboxes testgradient testasyncgetprop

-testboxes_LDADD = $(MUTTER_LIBS) libmutter.la
-testgradient_LDADD = $(MUTTER_LIBS) libmutter.la
-testasyncgetprop_LDADD = $(MUTTER_LIBS) libmutter.la
+testboxes_LDADD = $(MUTTER_LIBS) libmutter-wayland.la
+testgradient_LDADD = $(MUTTER_LIBS) libmutter-wayland.la
+testasyncgetprop_LDADD = $(MUTTER_LIBS) libmutter-wayland.la

@INTLTOOL_DESKTOP_RULE@

 desktopfilesdir=$(datadir)/applications
-desktopfiles_in_files=mutter.desktop.in
+desktopfiles_in_files=mutter-wayland.desktop.in
 desktopfiles_files=$(desktopfiles_in_files:.desktop.in=.desktop)
 desktopfiles_DATA = $(desktopfiles_files)

-wmpropertiesdir=$(datadir)/gnome/wm-properties
-wmproperties_in_files=mutter-wm.desktop.in
-wmproperties_files=$(wmproperties_in_files:.desktop.in=.desktop)
-wmproperties_DATA = $(wmproperties_files)
-
 xmldir       = @GNOME_KEYBINDINGS_KEYSDIR@
 xml_in_files = \
        50-mutter-navigation.xml.in	\
@ -268,6 +304,8 @@ xml_in_files = \
        50-mutter-windows.xml.in
 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
@INTLTOOL_XML_NOMERGE_RULE@
@GSETTINGS_RULES@
@ -276,7 +314,7 @@ convertdir = $(datadir)/GConf/gsettings
 convert_DATA = mutter-schemas.convert

 CLEANFILES =					\
-	mutter.desktop				\
+	mutter-wayland.desktop			\
 	mutter-wm.desktop			\
 	org.gnome.mutter.gschema.xml		\
 	$(xml_DATA)				\
@ -286,7 +324,7 @@ CLEANFILES =					\

 pkgconfigdir = $(libdir)/pkgconfig

-pkgconfig_DATA = libmutter.pc mutter-plugins.pc
+pkgconfig_DATA = libmutter-wayland.pc

 EXTRA_DIST=$(desktopfiles_files) 	\
 	$(wmproperties_files)		\
@ -296,8 +334,7 @@ EXTRA_DIST=$(desktopfiles_files) 	\
 	$(xml_in_files)			\
 	org.gnome.mutter.gschema.xml.in \
 	mutter-schemas.convert \
-	libmutter.pc.in \
-	mutter-plugins.pc.in  \
+	libmutter-wayland.pc.in \
 	mutter-enum-types.h.in \
 	mutter-enum-types.c.in

@ -323,3 +360,32 @@ mutter-enum-types.c: stamp-mutter-enum-types.h mutter-enum-types.c.in
 	  $(libmutterinclude_base_headers) ) >> xgen-tetc && \
 	cp xgen-tetc mutter-enum-types.c && \
 	rm -f xgen-tetc
+
+dbus_xrandr_built_sources = meta-dbus-xrandr.c meta-dbus-xrandr.h
+
+$(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
+	$(AM_V_GEN)gdbus-codegen							\
+		--interface-prefix org.gnome.Mutter					\
+		--c-namespace MetaDBus							\
+		--generate-c-code meta-dbus-idle-monitor				\
+		--c-generate-object-manager						\
+		$(srcdir)/idle-monitor.xml
+
+wayland/%-protocol.c : $(top_builddir)/protocol/%.xml
+	mkdir -p wayland
+	$(AM_V_GEN)$(WAYLAND_SCANNER) code < $< > $@
+wayland/%-server-protocol.h : $(top_builddir)/protocol/%.xml
+	mkdir -p wayland
+	$(AM_V_GEN)$(WAYLAND_SCANNER) server-header < $< > $@
+wayland/%-client-protocol.h : $(top_builddir)/protocol/%.xml
+	mkdir -p wayland
+	$(AM_V_GEN)$(WAYLAND_SCANNER) client-header < $< > $@
--- a/src/compositor/compositor-private.h
+++ b/src/compositor/compositor-private.h
@ -66,8 +66,6 @@ void meta_switch_workspace_completed (MetaScreen    *screen);

 gboolean meta_begin_modal_for_plugin (MetaScreen       *screen,
                                      MetaPlugin       *plugin,
-                                      Window            grab_window,
-                                      Cursor            cursor,
                                      MetaModalOptions  options,
                                      guint32           timestamp);
 void     meta_end_modal_for_plugin   (MetaScreen       *screen,
--- a/src/compositor/compositor.c
+++ b/src/compositor/compositor.c
@ -84,6 +84,7 @@
 #include "meta-window-group.h"
 #include "window-private.h" /* to check window->hidden */
 #include "display-private.h" /* for meta_display_lookup_x_window() */
+#include "meta-wayland-private.h"
 #include <X11/extensions/shape.h>
 #include <X11/extensions/Xcomposite.h>

@ -172,7 +173,7 @@ process_damage (MetaCompositor     *compositor,
  if (window_actor == NULL)
    return;

-  meta_window_actor_process_damage (window_actor, event);
+  meta_window_actor_process_x11_damage (window_actor, event);
 }

 static void
@ -327,29 +328,37 @@ void
 meta_set_stage_input_region (MetaScreen   *screen,
                             XserverRegion region)
 {
-  MetaCompScreen *info = meta_screen_get_compositor_data (screen);
-  MetaDisplay  *display = meta_screen_get_display (screen);
-  Display      *xdpy    = meta_display_get_xdisplay (display);
+  /* As a wayland compositor we can simply ignore all this trickery
+   * for setting an input region on the stage for capturing events in
+   * clutter since all input comes to us first and we get to choose
+   * who else sees them.
+   */
+  if (!meta_is_wayland_compositor ())
+    {
+      MetaCompScreen *info = meta_screen_get_compositor_data (screen);
+      MetaDisplay  *display = meta_screen_get_display (screen);
+      Display      *xdpy    = meta_display_get_xdisplay (display);

-  if (info->stage && info->output)
-    {
-      do_set_stage_input_region (screen, region);
+      if (info->stage && info->output)
+        {
+          do_set_stage_input_region (screen, region);
+        }
+      else 
+        {
+          /* Reset info->pending_input_region if one existed before and set the new
+           * one to use it later. */ 
+          if (info->pending_input_region)
+            {
+              XFixesDestroyRegion (xdpy, info->pending_input_region);
+              info->pending_input_region = None;
+            }
+          if (region != None)
+            {
+              info->pending_input_region = XFixesCreateRegion (xdpy, NULL, 0);
+              XFixesCopyRegion (xdpy, info->pending_input_region, region);
+            }
+        } 
    }
-  else 
-    {
-      /* Reset info->pending_input_region if one existed before and set the new
-       * one to use it later. */ 
-      if (info->pending_input_region)
-        {
-          XFixesDestroyRegion (xdpy, info->pending_input_region);
-          info->pending_input_region = None;
-        }
-      if (region != None)
-        {
-          info->pending_input_region = XFixesCreateRegion (xdpy, NULL, 0);
-          XFixesCopyRegion (xdpy, info->pending_input_region, region);
-        }
-    } 
 }

 void
@ -380,40 +389,44 @@ meta_focus_stage_window (MetaScreen *screen,
  if (!stage)
    return;

-  window = clutter_x11_get_stage_window (stage);
+  if (!meta_is_wayland_compositor ())
+    {
+      window = clutter_x11_get_stage_window (stage);

-  if (window == None)
-    return;
+      if (window == None)
+        return;

-  meta_display_set_input_focus_xwindow (screen->display,
-                                        screen,
-                                        window,
-                                        timestamp);
+      meta_display_set_input_focus_xwindow (screen->display,
+                                            screen,
+                                            META_FOCUS_STAGE,
+                                            window,
+                                            timestamp);
+    }
+  else
+    {
+      meta_display_set_input_focus_xwindow (screen->display,
+                                            screen,
+                                            META_FOCUS_STAGE,
+                                            None,
+                                            timestamp);
+    }
 }

 gboolean
 meta_stage_is_focused (MetaScreen *screen)
 {
  ClutterStage *stage;
-  Window window;

  stage = CLUTTER_STAGE (meta_get_stage_for_screen (screen));
  if (!stage)
    return FALSE;

-  window = clutter_x11_get_stage_window (stage);
-
-  if (window == None)
-    return FALSE;
-
-  return (screen->display->focus_xwindow == window);
+  return (screen->display->focus_type == META_FOCUS_STAGE);
 }

 gboolean
 meta_begin_modal_for_plugin (MetaScreen       *screen,
                             MetaPlugin       *plugin,
-                             Window            grab_window,
-                             Cursor            cursor,
                             MetaModalOptions  options,
                             guint32           timestamp)
 {
@ -424,10 +437,19 @@ meta_begin_modal_for_plugin (MetaScreen       *screen,
  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;

@ -562,6 +584,11 @@ redirect_windows (MetaCompositor *compositor,
  guint        n_retries;
  guint        max_retries;

+  /* If we're running with wayland, connected to a headless xwayland
+   * server then all the windows are implicitly redirected offscreen
+   * already and it would generate an error to try and explicitly
+   * redirect them via XCompositeRedirectSubwindows() */
+
  if (meta_get_replace_current_wm ())
    max_retries = 5;
  else
@ -604,6 +631,7 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
  Display        *xdisplay      = meta_display_get_xdisplay (display);
  Window          xwin;
  gint            width, height;
+  MetaWaylandCompositor *wayland_compositor;

  /* Check if the screen is already managed */
  if (meta_screen_get_compositor_data (screen))
@ -616,7 +644,14 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
   * We have to initialize info->pending_input_region to an empty region explicitly, 
   * because None value is used to mean that the whole screen is an input region.
   */
-  info->pending_input_region = XFixesCreateRegion (xdisplay, NULL, 0);
+  if (!meta_is_wayland_compositor ())
+    info->pending_input_region = XFixesCreateRegion (xdisplay, NULL, 0);
+  else
+    {
+      /* Stage input region trickery isn't needed when we're running as a
+       * wayland compositor. */
+      info->pending_input_region = None;
+    }

  info->screen = screen;

@ -627,7 +662,56 @@ meta_compositor_manage_screen (MetaCompositor *compositor,

  meta_screen_set_cm_selection (screen);

-  info->stage = clutter_stage_new ();
+  /* We will have already created a stage if running as a wayland
+   * compositor... */
+  if (meta_is_wayland_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
+    {
+      info->stage = clutter_stage_new ();
+
+      meta_screen_get_size (screen, &width, &height);
+      clutter_actor_realize (info->stage);
+
+      xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
+
+      XResizeWindow (xdisplay, xwin, width, height);
+
+        {
+          long event_mask;
+          unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
+          XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
+          XWindowAttributes attr;
+
+          meta_core_add_old_event_mask (xdisplay, xwin, &mask);
+
+          XISetMask (mask.mask, XI_KeyPress);
+          XISetMask (mask.mask, XI_KeyRelease);
+          XISetMask (mask.mask, XI_ButtonPress);
+          XISetMask (mask.mask, XI_ButtonRelease);
+          XISetMask (mask.mask, XI_Enter);
+          XISetMask (mask.mask, XI_Leave);
+          XISetMask (mask.mask, XI_FocusIn);
+          XISetMask (mask.mask, XI_FocusOut);
+          XISetMask (mask.mask, XI_Motion);
+          XIClearMask (mask.mask, XI_TouchBegin);
+          XIClearMask (mask.mask, XI_TouchEnd);
+          XIClearMask (mask.mask, XI_TouchUpdate);
+          XISelectEvents (xdisplay, xwin, &mask, 1);
+
+          event_mask = ExposureMask | PropertyChangeMask | StructureNotifyMask;
+          if (XGetWindowAttributes (xdisplay, xwin, &attr))
+            event_mask |= attr.your_event_mask;
+
+          XSelectInput (xdisplay, xwin, event_mask);
+        }
+    }

  clutter_stage_set_paint_callback (CLUTTER_STAGE (info->stage),
                                    after_stage_paint,
@ -636,42 +720,6 @@ meta_compositor_manage_screen (MetaCompositor *compositor,

  clutter_stage_set_sync_delay (CLUTTER_STAGE (info->stage), META_SYNC_DELAY);

-  meta_screen_get_size (screen, &width, &height);
-  clutter_actor_realize (info->stage);
-
-  xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
-
-  XResizeWindow (xdisplay, xwin, width, height);
-
-  {
-    long event_mask;
-    unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
-    XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
-    XWindowAttributes attr;
-
-    meta_core_add_old_event_mask (xdisplay, xwin, &mask);
-
-    XISetMask (mask.mask, XI_KeyPress);
-    XISetMask (mask.mask, XI_KeyRelease);
-    XISetMask (mask.mask, XI_ButtonPress);
-    XISetMask (mask.mask, XI_ButtonRelease);
-    XISetMask (mask.mask, XI_Enter);
-    XISetMask (mask.mask, XI_Leave);
-    XISetMask (mask.mask, XI_FocusIn);
-    XISetMask (mask.mask, XI_FocusOut);
-    XISetMask (mask.mask, XI_Motion);
-    XIClearMask (mask.mask, XI_TouchBegin);
-    XIClearMask (mask.mask, XI_TouchEnd);
-    XIClearMask (mask.mask, XI_TouchUpdate);
-    XISelectEvents (xdisplay, xwin, &mask, 1);
-
-    event_mask = ExposureMask | PropertyChangeMask | StructureNotifyMask;
-    if (XGetWindowAttributes (xdisplay, xwin, &attr))
-      event_mask |= attr.your_event_mask;
-
-    XSelectInput (xdisplay, xwin, event_mask);
-  }
-
  info->window_group = meta_window_group_new (screen);
  info->top_window_group = meta_window_group_new (screen);

@ -680,53 +728,66 @@ meta_compositor_manage_screen (MetaCompositor *compositor,

  info->plugin_mgr = meta_plugin_manager_new (screen);

-  /*
-   * Delay the creation of the overlay window as long as we can, to avoid
-   * blanking out the screen. This means that during the plugin loading, the
-   * overlay window is not accessible; if the plugin needs to access it
-   * directly, it should hook into the "show" signal on stage, and do
-   * its stuff there.
-   */
-  info->output = get_output_window (screen);
-  XReparentWindow (xdisplay, xwin, info->output, 0, 0);
-
- /* Make sure there isn't any left-over output shape on the 
-  * overlay window by setting the whole screen to be an
-  * output region.
-  * 
-  * Note: there doesn't seem to be any real chance of that
-  *  because the X server will destroy the overlay window
-  *  when the last client using it exits.
-  */
-  XFixesSetWindowShapeRegion (xdisplay, info->output, ShapeBounding, 0, 0, None);
-
-  do_set_stage_input_region (screen, info->pending_input_region);
-  if (info->pending_input_region != None)
+  if (meta_is_wayland_compositor ())
    {
-      XFixesDestroyRegion (xdisplay, info->pending_input_region);
-      info->pending_input_region = None;
+      /* NB: When running as a wayland compositor we don't need an X
+       * composite overlay window, and we don't need to play any input
+       * region tricks to redirect events into clutter. */
+      info->output = None;
    }
+  else
+    {
+      /*
+       * Delay the creation of the overlay window as long as we can, to avoid
+       * blanking out the screen. This means that during the plugin loading, the
+       * overlay window is not accessible; if the plugin needs to access it
+       * directly, it should hook into the "show" signal on stage, and do
+       * its stuff there.
+       */
+      info->output = get_output_window (screen);
+      XReparentWindow (xdisplay, xwin, info->output, 0, 0);

-  /* Map overlay window before redirecting windows offscreen so we catch their
-   * contents until we show the stage.
-   */
-  XMapWindow (xdisplay, info->output);
+      /* Make sure there isn't any left-over output shape on the 
+       * overlay window by setting the whole screen to be an
+       * output region.
+       * 
+       * Note: there doesn't seem to be any real chance of that
+       *  because the X server will destroy the overlay window
+       *  when the last client using it exits.
+       */
+      XFixesSetWindowShapeRegion (xdisplay, info->output, ShapeBounding, 0, 0, None);

-  redirect_windows (compositor, screen);
+      do_set_stage_input_region (screen, info->pending_input_region);
+      if (info->pending_input_region != None)
+        {
+          XFixesDestroyRegion (xdisplay, info->pending_input_region);
+          info->pending_input_region = None;
+        }
+
+      /* Map overlay window before redirecting windows offscreen so we catch their
+       * contents until we show the stage.
+       */
+      XMapWindow (xdisplay, info->output);
+
+      redirect_windows (compositor, screen);
+    }
 }

 void
 meta_compositor_unmanage_screen (MetaCompositor *compositor,
                                 MetaScreen     *screen)
 {
-  MetaDisplay    *display       = meta_screen_get_display (screen);
-  Display        *xdisplay      = meta_display_get_xdisplay (display);
-  Window          xroot         = meta_screen_get_xroot (screen);
+  if (!meta_is_wayland_compositor ())
+    {
+      MetaDisplay    *display       = meta_screen_get_display (screen);
+      Display        *xdisplay      = meta_display_get_xdisplay (display);
+      Window          xroot         = meta_screen_get_xroot (screen);

-  /* This is the most important part of cleanup - we have to do this
-   * before giving up the window manager selection or the next
-   * window manager won't be able to redirect subwindows */
-  XCompositeUnredirectSubwindows (xdisplay, xroot, CompositeRedirectManual);
+      /* This is the most important part of cleanup - we have to do this
+       * before giving up the window manager selection or the next
+       * window manager won't be able to redirect subwindows */
+      XCompositeUnredirectSubwindows (xdisplay, xroot, CompositeRedirectManual);
+    }
 }

 /*
@ -798,15 +859,18 @@ meta_compositor_remove_window (MetaCompositor *compositor,
  if (!window_actor)
    return;

-  screen = meta_window_get_screen (window);
-  info = meta_screen_get_compositor_data (screen);
-
-  if (window_actor == info->unredirected_window)
+  if (!meta_is_wayland_compositor ())
    {
-      meta_window_actor_set_redirected (window_actor, TRUE);
-      meta_shape_cow_for_window (meta_window_get_screen (meta_window_actor_get_meta_window (info->unredirected_window)),
-                                 NULL);
-      info->unredirected_window = NULL;
+      screen = meta_window_get_screen (window);
+      info = meta_screen_get_compositor_data (screen);
+
+      if (window_actor == info->unredirected_window)
+        {
+          meta_window_actor_set_redirected (window_actor, TRUE);
+          meta_shape_cow_for_window (meta_window_get_screen (meta_window_actor_get_meta_window (info->unredirected_window)),
+                                     NULL);
+          info->unredirected_window = NULL;
+        }
    }

  meta_window_actor_destroy (window_actor);
@ -993,7 +1057,8 @@ meta_compositor_process_event (MetaCompositor *compositor,
      break;

    default:
-      if (event->type == meta_display_get_damage_event_base (compositor->display) + XDamageNotify)
+      if (!meta_is_wayland_compositor () &&
+          event->type == meta_display_get_damage_event_base (compositor->display) + XDamageNotify)
        {
          /* Core code doesn't handle damage events, so we need to extract the MetaWindow
           * ourselves
@ -1012,7 +1077,7 @@ meta_compositor_process_event (MetaCompositor *compositor,

  /* Clutter needs to know about MapNotify events otherwise it will
     think the stage is invisible */
-  if (event->type == MapNotify)
+  if (!meta_is_wayland_compositor () && event->type == MapNotify)
    clutter_x11_handle_event (event);

  /* The above handling is basically just "observing" the events, so we return
@ -1356,20 +1421,38 @@ meta_compositor_sync_screen_size (MetaCompositor  *compositor,
 {
  MetaDisplay    *display = meta_screen_get_display (screen);
  MetaCompScreen *info    = meta_screen_get_compositor_data (screen);
-  Display        *xdisplay;
-  Window          xwin;

-  DEBUG_TRACE ("meta_compositor_sync_screen_size\n");
-  g_return_if_fail (info);
+  if (meta_is_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.

-  xdisplay = meta_display_get_xdisplay (display);
-  xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
+         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.
+      */

-  XResizeWindow (xdisplay, xwin, width, height);
+      clutter_actor_set_size (info->stage, width, height);
+    }
+  else
+    {
+      Display        *xdisplay;
+      Window          xwin;
+
+      DEBUG_TRACE ("meta_compositor_sync_screen_size\n");
+      g_return_if_fail (info);
+
+      xdisplay = meta_display_get_xdisplay (display);
+      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_screen_get_screen_number (screen),
+                width, height);
 }

 static void
@ -1433,29 +1516,32 @@ pre_paint_windows (MetaCompScreen *info)
  if (info->windows == NULL)
    return;

-  top_window = g_list_last (info->windows)->data;
-
-  if (meta_window_actor_should_unredirect (top_window) &&
-      info->disable_unredirect_count == 0)
-    expected_unredirected_window = top_window;
-
-  if (info->unredirected_window != expected_unredirected_window)
+  if (!meta_is_wayland_compositor ())
    {
-      if (info->unredirected_window != NULL)
-        {
-          meta_window_actor_set_redirected (info->unredirected_window, TRUE);
-          meta_shape_cow_for_window (meta_window_get_screen (meta_window_actor_get_meta_window (info->unredirected_window)),
-                                     NULL);
-        }
+      top_window = g_list_last (info->windows)->data;

-      if (expected_unredirected_window != NULL)
-        {
-          meta_shape_cow_for_window (meta_window_get_screen (meta_window_actor_get_meta_window (top_window)),
-                                     meta_window_actor_get_meta_window (top_window));
-          meta_window_actor_set_redirected (top_window, FALSE);
-        }
+      if (meta_window_actor_should_unredirect (top_window) &&
+          info->disable_unredirect_count == 0)
+        expected_unredirected_window = top_window;

-      info->unredirected_window = expected_unredirected_window;
+      if (info->unredirected_window != expected_unredirected_window)
+        {
+          if (info->unredirected_window != NULL)
+            {
+              meta_window_actor_set_redirected (info->unredirected_window, TRUE);
+              meta_shape_cow_for_window (meta_window_get_screen (meta_window_actor_get_meta_window (info->unredirected_window)),
+                                         NULL);
+            }
+
+          if (expected_unredirected_window != NULL)
+            {
+              meta_shape_cow_for_window (meta_window_get_screen (meta_window_actor_get_meta_window (top_window)),
+                                         meta_window_actor_get_meta_window (top_window));
+              meta_window_actor_set_redirected (top_window, FALSE);
+            }
+
+          info->unredirected_window = expected_unredirected_window;
+        }
    }

  for (l = info->windows; l; l = l->next)
--- a/src/compositor/meta-background.c
+++ b/src/compositor/meta-background.c
@ -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);
--- a/src/compositor/meta-plugin-manager.c
+++ b/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;
 }

@ -317,6 +329,28 @@ meta_plugin_manager_xevent_filter (MetaPluginManager *plugin_mgr,
   */
  if (klass->xevent_filter)
    return klass->xevent_filter (plugin, xev);
-  else
-    return clutter_x11_handle_event (xev) != CLUTTER_X11_FILTER_CONTINUE;
+
+  /* When mutter is running as a wayland compositor, things like input
+   * events just come directly from clutter so it won't have disabled
+   * clutter's event retrieval and won't need to forward it events (if
+   * it did it would lead to recursion). Also when running as a
+   * wayland compositor we shouldn't be assuming that we're running
+   * with the clutter x11 backend.
+   */
+  if (meta_is_wayland_compositor ())
+    return FALSE;
+
+  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);
 }
--- a/src/compositor/meta-plugin-manager.h
+++ b/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
--- a/src/compositor/meta-plugin.c
+++ b/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);

@ -266,10 +267,6 @@ meta_plugin_destroy_completed (MetaPlugin      *plugin,
 /**
 * meta_plugin_begin_modal:
 * @plugin: a #MetaPlugin
- * @grab_window: the X window to grab the keyboard and mouse on
- * @cursor: the cursor to use for the pointer grab, or None,
- *          to use the normal cursor for the grab window and
- *          its descendants.
 * @options: flags that modify the behavior of the modal grab
 * @timestamp: the timestamp used for establishing grabs
 *
@ -290,15 +287,13 @@ meta_plugin_destroy_completed (MetaPlugin      *plugin,
 */
 gboolean
 meta_plugin_begin_modal (MetaPlugin       *plugin,
-                         Window            grab_window,
-                         Cursor            cursor,
                         MetaModalOptions  options,
                         guint32           timestamp)
 {
  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;

  return meta_begin_modal_for_plugin (priv->screen, plugin,
-                                      grab_window, cursor, options, timestamp);
+                                      options, timestamp);
 }

 /**
@ -338,3 +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);
+}
--- a/src/compositor/meta-shaped-texture-private.h
+++ b/src/compositor/meta-shaped-texture-private.h
@ -0,0 +1,44 @@
+/*
+ * shaped texture
+ *
+ * An actor to draw a texture clipped to a list of rectangles
+ *
+ * Authored By Neil Roberts  <neil@linux.intel.com>
+ *
+ * Copyright (C) 2008 Intel Corporation
+ *               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_SHAPED_TEXTURE_PRIVATE_H__
+#define __META_SHAPED_TEXTURE_PRIVATE_H__
+
+#include <meta/meta-shaped-texture.h>
+#include "meta-wayland-private.h"
+
+ClutterActor *meta_shaped_texture_new_with_xwindow (Window xwindow);
+ClutterActor *meta_shaped_texture_new_with_wayland_surface  (MetaWaylandSurface *surface);
+void meta_shaped_texture_set_wayland_surface                (MetaShapedTexture  *stex,
+                                                             MetaWaylandSurface *surface);
+MetaWaylandSurface *meta_shaped_texture_get_wayland_surface (MetaShapedTexture *stex);
+
+void meta_shaped_texture_set_pixmap (MetaShapedTexture *stex,
+                                     Pixmap             pixmap);
+void meta_shaped_texture_attach_wayland_buffer (MetaShapedTexture  *stex,
+                                                MetaWaylandBuffer  *buffer);
+
+#endif
--- a/src/compositor/meta-shaped-texture.c
+++ b/src/compositor/meta-shaped-texture.c
@ -30,8 +30,13 @@
 #include <config.h>

 #include <meta/meta-shaped-texture.h>
+#include <meta/util.h>
 #include "meta-texture-tower.h"

+#include "meta-shaped-texture-private.h"
+#include "meta-wayland-private.h"
+#include <cogl/cogl-wayland-server.h>
+
 #include <clutter/clutter.h>
 #include <cogl/cogl.h>
 #include <cogl/cogl-texture-pixmap-x11.h>
@ -55,6 +60,13 @@ static void meta_shaped_texture_get_preferred_height (ClutterActor *self,

 static gboolean meta_shaped_texture_get_paint_volume (ClutterActor *self, ClutterPaintVolume *volume);

+typedef enum _MetaShapedTextureType
+{
+  META_SHAPED_TEXTURE_TYPE_X11_PIXMAP,
+  META_SHAPED_TEXTURE_TYPE_WAYLAND_SURFACE,
+} MetaShapedTextureType;
+
+
 G_DEFINE_TYPE (MetaShapedTexture, meta_shaped_texture,
               CLUTTER_TYPE_ACTOR);

@ -65,13 +77,24 @@ G_DEFINE_TYPE (MetaShapedTexture, meta_shaped_texture,
 struct _MetaShapedTexturePrivate
 {
  MetaTextureTower *paint_tower;
-  Pixmap pixmap;
-  CoglTexturePixmapX11 *texture;
+
+  MetaShapedTextureType type;
+  union {
+    struct {
+      Pixmap pixmap;
+    } x11;
+    struct {
+      MetaWaylandSurface *surface;
+    } wayland;
+  };
+
+  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;

@ -103,7 +126,10 @@ meta_shaped_texture_init (MetaShapedTexture *self)
  priv = self->priv = META_SHAPED_TEXTURE_GET_PRIVATE (self);

  priv->paint_tower = meta_texture_tower_new ();
+
+  priv->type = META_SHAPED_TEXTURE_TYPE_X11_PIXMAP;
  priv->texture = NULL;
+
  priv->mask_texture = NULL;
  priv->create_mipmaps = TRUE;
 }
@ -118,8 +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);
@ -128,19 +152,133 @@ 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)
+{
+  MetaShapedTexturePrivate *priv;
+  guint width, height;
+
+  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
+
+  priv = stex->priv;
+
+  if (priv->texture)
+    cogl_object_unref (priv->texture);
+
+  priv->texture = cogl_tex;
+
+  if (cogl_tex != NULL)
+    {
+      width = cogl_texture_get_width (COGL_TEXTURE (cogl_tex));
+      height = cogl_texture_get_height (COGL_TEXTURE (cogl_tex));
+
+      if (width != priv->tex_width ||
+          height != priv->tex_height)
+        {
+          priv->tex_width = width;
+          priv->tex_height = height;
+
+          clutter_actor_queue_relayout (CLUTTER_ACTOR (stex));
+        }
+    }
+  else
+    {
+      /* size changed to 0 going to an invalid handle */
+      priv->tex_width = 0;
+      priv->tex_height = 0;
+      clutter_actor_queue_relayout (CLUTTER_ACTOR (stex));
+    }
+
+  /* NB: We don't queue a redraw of the actor here because we don't
+   * know how much of the buffer has changed with respect to the
+   * previous buffer. We only queue a redraw in response to surface
+   * damage. */
+}
+
 static void
 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;
@ -177,38 +315,67 @@ 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;
+
+      region = cairo_region_copy (priv->clip_region);
+      cairo_region_intersect (region, 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);
    }

@ -216,20 +383,13 @@ 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 */
@ -238,8 +398,8 @@ meta_shaped_texture_paint (ClutterActor *actor)
      n_rects = cairo_region_num_rectangles (priv->clip_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++)
 	    {
@ -250,32 +410,23 @@ meta_shaped_texture_paint (ClutterActor *actor)
 	      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
@ -285,38 +436,62 @@ meta_shaped_texture_pick (ClutterActor       *actor,
  MetaShapedTexture *stex = (MetaShapedTexture *) actor;
  MetaShapedTexturePrivate *priv = stex->priv;

+  if (!clutter_actor_should_pick_paint (actor) ||
+      (priv->clip_region && cairo_region_is_empty (priv->clip_region)))
+    return;
+
  /* If there is no region then use the regular pick */
-  if (priv->mask_texture == NULL)
-    CLUTTER_ACTOR_CLASS (meta_shaped_texture_parent_class)
-      ->pick (actor, color);
-  else if (clutter_actor_should_pick_paint (actor))
+  if (priv->input_shape_region == NULL)
+    CLUTTER_ACTOR_CLASS (meta_shaped_texture_parent_class)->pick (actor, color);
+  else
    {
-      CoglTexture *paint_tex;
+      int n_rects;
+      float *rectangles;
+      int i;
      ClutterActorBox alloc;
-      guint tex_width, tex_height;
+      CoglPipeline *pipeline;
+      CoglContext *ctx;
+      CoglFramebuffer *fb;
+      CoglColor cogl_color;

-      paint_tex = COGL_TEXTURE (priv->texture);
+      /* Note: We don't bother trying to intersect the pick and clip regions
+       * since needing to copy the region, do the intersection, and probably
+       * increase the number of rectangles seems more likely to have a negative
+       * effect.
+       *
+       * NB: Most of the time when just using rectangles for picking then
+       * picking shouldn't involve any rendering, and minimizing the number of
+       * rectangles has more benefit than reducing the area of the pick
+       * region.
+       */

-      if (paint_tex == NULL)
-        return;
+      n_rects = cairo_region_num_rectangles (priv->input_shape_region);
+      rectangles = g_alloca (sizeof (float) * 4 * n_rects);

-      tex_width = cogl_texture_get_width (paint_tex);
-      tex_height = cogl_texture_get_height (paint_tex);
+      for (i = 0; i < n_rects; i++)
+        {
+          cairo_rectangle_int_t rect;
+          int pos = i * 4;

-      if (tex_width == 0 || tex_height == 0) /* no contents yet */
-        return;
+          cairo_region_get_rectangle (priv->input_shape_region, i, &rect);

-      cogl_set_source_color4ub (color->red, color->green, color->blue,
-                                 color->alpha);
+          rectangles[pos] = rect.x;
+          rectangles[pos + 1] = rect.y;
+          rectangles[pos + 2] = rect.x + rect.width;
+          rectangles[pos + 3] = rect.y + rect.height;
+        }

-      clutter_actor_get_allocation_box (actor, &alloc);
+      ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
+      fb = cogl_get_draw_framebuffer ();

-      /* Paint the mask rectangle in the given color */
-      cogl_set_source_texture (priv->mask_texture);
-      cogl_rectangle_with_texture_coords (0, 0,
-                                          alloc.x2 - alloc.x1,
-                                          alloc.y2 - alloc.y1,
-                                          0, 0, 1, 1);
+      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);
    }
 }

@ -366,11 +541,45 @@ meta_shaped_texture_get_paint_volume (ClutterActor *self,
 }

 ClutterActor *
-meta_shaped_texture_new (void)
+meta_shaped_texture_new_with_wayland_surface (MetaWaylandSurface *surface)
 {
-  ClutterActor *self = g_object_new (META_TYPE_SHAPED_TEXTURE, NULL);
+  ClutterActor *actor = g_object_new (META_TYPE_SHAPED_TEXTURE, NULL);
+  MetaShapedTexturePrivate *priv = META_SHAPED_TEXTURE (actor)->priv;

-  return self;
+  /* XXX: it could probably be better to have a "type" construct-only
+   * property or create wayland/x11 subclasses */
+  priv->type = META_SHAPED_TEXTURE_TYPE_WAYLAND_SURFACE;
+
+  meta_shaped_texture_set_wayland_surface (META_SHAPED_TEXTURE (actor),
+                                           surface);
+
+  return actor;
+}
+
+void
+meta_shaped_texture_set_wayland_surface (MetaShapedTexture *stex,
+                                         MetaWaylandSurface *surface)
+{
+  MetaShapedTexturePrivate *priv = stex->priv;
+
+  priv->wayland.surface = surface;
+
+  if (surface && surface->buffer_ref.buffer)
+    meta_shaped_texture_attach_wayland_buffer (stex,
+                                               surface->buffer_ref.buffer);
+}
+
+MetaWaylandSurface *
+meta_shaped_texture_get_wayland_surface (MetaShapedTexture *stex)
+{
+  MetaShapedTexturePrivate *priv = stex->priv;
+  return priv->wayland.surface;
+}
+
+ClutterActor *
+meta_shaped_texture_new_with_xwindow (Window xwindow)
+{
+  return g_object_new (META_TYPE_SHAPED_TEXTURE, NULL);
 }

 void
@ -389,8 +598,7 @@ meta_shaped_texture_set_create_mipmaps (MetaShapedTexture *stex,
    {
      CoglTexture *base_texture;
      priv->create_mipmaps = create_mipmaps;
-      base_texture = create_mipmaps ?
-        COGL_TEXTURE (priv->texture) : NULL;
+      base_texture = create_mipmaps ? priv->texture : NULL;
      meta_texture_tower_set_base_texture (priv->paint_tower, base_texture);
    }
 }
@ -416,74 +624,142 @@ meta_shaped_texture_set_mask_texture (MetaShapedTexture *stex,
  clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
 }

-void
-meta_shaped_texture_update_area (MetaShapedTexture *stex,
-				 int                x,
-				 int                y,
-				 int                width,
-				 int                height)
+static void
+wayland_surface_update_area (MetaShapedTexture *stex,
+                             int                x,
+                             int                y,
+                             int                width,
+                             int                height)
+{
+  MetaShapedTexturePrivate *priv;
+  MetaWaylandBuffer *buffer;
+
+  priv = stex->priv;
+
+  g_return_if_fail (priv->type == META_SHAPED_TEXTURE_TYPE_WAYLAND_SURFACE);
+  g_return_if_fail (priv->texture != NULL);
+
+  buffer = priv->wayland.surface->buffer_ref.buffer;
+
+  if (buffer)
+    {
+      struct wl_resource *resource = buffer->resource;
+      struct wl_shm_buffer *shm_buffer = wl_shm_buffer_get (resource);
+
+      if (shm_buffer)
+        {
+          CoglPixelFormat format;
+
+          switch (wl_shm_buffer_get_format (shm_buffer))
+            {
+#if G_BYTE_ORDER == G_BIG_ENDIAN
+            case WL_SHM_FORMAT_ARGB8888:
+              format = COGL_PIXEL_FORMAT_ARGB_8888_PRE;
+              break;
+            case WL_SHM_FORMAT_XRGB8888:
+              format = COGL_PIXEL_FORMAT_ARGB_8888;
+              break;
+#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
+            case WL_SHM_FORMAT_ARGB8888:
+              format = COGL_PIXEL_FORMAT_BGRA_8888_PRE;
+              break;
+            case WL_SHM_FORMAT_XRGB8888:
+              format = COGL_PIXEL_FORMAT_BGRA_8888;
+              break;
+#endif
+            default:
+              g_warn_if_reached ();
+              format = COGL_PIXEL_FORMAT_ARGB_8888;
+            }
+
+          cogl_texture_set_region (priv->texture,
+                                   x, y,
+                                   x, y,
+                                   width, height,
+                                   width, height,
+                                   format,
+                                   wl_shm_buffer_get_stride (shm_buffer),
+                                   wl_shm_buffer_get_data (shm_buffer));
+        }
+    }
+}
+
+static void
+queue_damage_redraw_with_clip (MetaShapedTexture *stex,
+                               int x,
+                               int y,
+                               int width,
+                               int height)
+{
+  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
+   * actor coordinates...
+   */
+
+  /* Calling clutter_actor_get_allocation_box() is enormously expensive
+   * if the actor has an out-of-date allocation, since it triggers
+   * a full redraw. clutter_actor_queue_redraw_with_clip() would redraw
+   * the whole stage anyways in that case, so just go ahead and do
+   * it here.
+   */
+  if (!clutter_actor_has_allocation (self))
+    {
+      clutter_actor_queue_redraw (self);
+      return;
+    }
+
+  priv = stex->priv;
+
+  if (priv->tex_width == 0 || priv->tex_height == 0)
+    return;
+
+  clutter_actor_get_allocation_box (self, &allocation);
+
+  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);
+}
+
+void
+meta_shaped_texture_update_area (MetaShapedTexture *stex,
+                                 int                x,
+                                 int                y,
+                                 int                width,
+                                 int                height)
 {
  MetaShapedTexturePrivate *priv;
-  const cairo_rectangle_int_t clip = { x, y, width, height };

  priv = stex->priv;

  if (priv->texture == NULL)
    return;

-  cogl_texture_pixmap_x11_update_area (priv->texture,
-                                       x, y, width, height);
+  switch (priv->type)
+    {
+    case META_SHAPED_TEXTURE_TYPE_X11_PIXMAP:
+      cogl_texture_pixmap_x11_update_area (COGL_TEXTURE_PIXMAP_X11 (priv->texture),
+                                           x, y, width, height);
+      break;
+    case META_SHAPED_TEXTURE_TYPE_WAYLAND_SURFACE:
+      wayland_surface_update_area (stex, x, y, width, height);
+      break;
+    }

  meta_texture_tower_update_area (priv->paint_tower, x, y, width, height);

-  clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (stex), &clip);
-}
-
-static void
-set_cogl_texture (MetaShapedTexture    *stex,
-                  CoglTexturePixmapX11 *cogl_tex)
-{
-  MetaShapedTexturePrivate *priv;
-  guint width, height;
-
-  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
-
-  priv = stex->priv;
-
-  if (priv->texture != NULL)
-    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));
-
-  if (cogl_tex != NULL)
-    {
-      width = cogl_texture_get_width (COGL_TEXTURE (cogl_tex));
-      height = cogl_texture_get_height (COGL_TEXTURE (cogl_tex));
-
-      if (width != priv->tex_width ||
-          height != priv->tex_height)
-        {
-          priv->tex_width = width;
-          priv->tex_height = height;
-
-          clutter_actor_queue_relayout (CLUTTER_ACTOR (stex));
-        }
-    }
-  else
-    {
-      /* size changed to 0 going to an inavlid texture */
-      priv->tex_width = 0;
-      priv->tex_height = 0;
-      clutter_actor_queue_relayout (CLUTTER_ACTOR (stex));
-    }
-
-  clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
+  queue_damage_redraw_with_clip (stex, x, y, width, height);
 }

 /**
@ -501,16 +777,64 @@ meta_shaped_texture_set_pixmap (MetaShapedTexture *stex,

  priv = stex->priv;

-  if (priv->pixmap == pixmap)
+  if (priv->x11.pixmap == pixmap)
    return;

-  priv->pixmap = pixmap;
+  priv->x11.pixmap = pixmap;

  if (pixmap != None)
    {
      CoglContext *ctx =
        clutter_backend_get_cogl_context (clutter_get_default_backend ());
-      set_cogl_texture (stex, cogl_texture_pixmap_x11_new (ctx, pixmap, FALSE, NULL));
+      CoglTexture *texture =
+        COGL_TEXTURE (cogl_texture_pixmap_x11_new (ctx, pixmap, FALSE, NULL));
+      set_cogl_texture (stex, texture);
+    }
+  else
+    set_cogl_texture (stex, NULL);
+
+  if (priv->create_mipmaps)
+    meta_texture_tower_set_base_texture (priv->paint_tower,
+                                         COGL_TEXTURE (priv->texture));
+}
+
+void
+meta_shaped_texture_attach_wayland_buffer (MetaShapedTexture  *stex,
+                                           MetaWaylandBuffer  *buffer)
+{
+  MetaShapedTexturePrivate *priv;
+
+  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
+
+  priv = stex->priv;
+
+  /* TODO: we should change this api to be something like
+   * meta_shaped_texture_notify_buffer_attach() since we now maintain
+   * a reference to the MetaWaylandSurface where we can access the
+   * buffer without it being explicitly passed as an argument.
+   */
+  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);
    }
  else
    set_cogl_texture (stex, NULL);
@ -533,6 +857,41 @@ meta_shaped_texture_get_texture (MetaShapedTexture *stex)
  return COGL_TEXTURE (stex->priv->texture);
 }

+/**
+ * meta_shaped_texture_set_input_shape_region:
+ * @stex: a #MetaShapedTexture
+ * @shape_region: the region of the texture that should respond to
+ *    input.
+ *
+ * Determines what region of the texture should accept input. For
+ * X based windows this is defined by the ShapeInput region of the
+ * window.
+ */
+void
+meta_shaped_texture_set_input_shape_region (MetaShapedTexture *stex,
+                                            cairo_region_t    *shape_region)
+{
+  MetaShapedTexturePrivate *priv;
+
+  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
+
+  priv = stex->priv;
+
+  if (priv->input_shape_region != NULL)
+    {
+      cairo_region_destroy (priv->input_shape_region);
+      priv->input_shape_region = NULL;
+    }
+
+  if (shape_region != NULL)
+    {
+      cairo_region_reference (shape_region);
+      priv->input_shape_region = shape_region;
+    }
+
+  clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
+}
+
 /**
 * meta_shaped_texture_set_clip_region:
 * @stex: a #MetaShapedTexture
@ -569,6 +928,36 @@ 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
--- a/src/compositor/meta-window-actor-private.h
+++ b/src/compositor/meta-window-actor-private.h
@ -5,6 +5,9 @@

 #include <config.h>

+#include <wayland-server.h>
+#include <meta-wayland-private.h>
+
 #include <X11/extensions/Xdamage.h>
 #include <meta/compositor-mutter.h>

@ -24,8 +27,18 @@ void meta_window_actor_unmaximize (MetaWindowActor *self,
                                   MetaRectangle   *old_rect,
                                   MetaRectangle   *new_rect);

-void meta_window_actor_process_damage (MetaWindowActor    *self,
-                                       XDamageNotifyEvent *event);
+void meta_window_actor_process_x11_damage (MetaWindowActor    *self,
+                                           XDamageNotifyEvent *event);
+
+void meta_window_actor_process_wayland_damage (MetaWindowActor *self,
+                                               int              x,
+                                               int              y,
+                                               int              width,
+                                               int              height);
+void meta_window_actor_set_wayland_surface    (MetaWindowActor    *self,
+                                               MetaWaylandSurface *surface);
+void meta_window_actor_attach_wayland_buffer  (MetaWindowActor   *self,
+                                               MetaWaylandBuffer *buffer);

 void meta_window_actor_pre_paint      (MetaWindowActor    *self);
 void meta_window_actor_post_paint     (MetaWindowActor    *self);
--- a/src/compositor/meta-window-actor.c
+++ b/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>
@ -28,10 +27,12 @@
 #include "xprops.h"

 #include "compositor-private.h"
+#include "meta-shaped-texture-private.h"
 #include "meta-shadow-factory-private.h"
 #include "meta-window-actor-private.h"
 #include "meta-texture-rectangle.h"
 #include "region-utils.h"
+#include "meta-wayland-private.h"

 enum {
  POSITION_CHANGED,
@ -64,14 +65,12 @@ struct _MetaWindowActorPrivate
  MetaShadow       *focused_shadow;
  MetaShadow       *unfocused_shadow;

-  Pixmap            back_pixmap;
-
-  Damage            damage;
-
  guint8            opacity;

  /* A region that matches the shape of the window, including frame bounds */
  cairo_region_t   *shape_region;
+  /* If the window has an input shape, a region that matches the shape */
+  cairo_region_t   *input_region;
  /* The opaque region, from _NET_WM_OPAQUE_REGION, intersected with
   * the shape region. */
  cairo_region_t   *opaque_region;
@ -102,31 +101,41 @@ struct _MetaWindowActorPrivate
  /* List of FrameData for recent frames */
  GList            *frames;

+  Pixmap            back_pixmap; /* Not used in wayland compositor mode */
+  Damage            damage; /* Not used in wayland compositor mode */
+
  guint		    visible                : 1;
  guint		    mapped                 : 1;
  guint		    argb32                 : 1;
  guint		    disposed               : 1;
  guint             redecorating           : 1;

-  guint		    needs_damage_all       : 1;
-  guint		    received_damage        : 1;
-  guint             repaint_scheduled      : 1;
-
  /* If set, the client needs to be sent a _NET_WM_FRAME_DRAWN
   * client message using the most recent frame in ->frames */
  guint             needs_frame_drawn      : 1;
+  guint             repaint_scheduled      : 1;

-  guint		    needs_pixmap           : 1;
  guint             needs_reshape          : 1;
  guint             recompute_focused_shadow   : 1;
  guint             recompute_unfocused_shadow : 1;
-  guint		    size_changed           : 1;
-  guint             updates_frozen         : 1;

  guint		    needs_destroy	   : 1;

  guint             no_shadow              : 1;

+
+  /* 
+   * None of these are used in wayland compositor mode...
+   */
+
+  guint		    needs_damage_all       : 1;
+  guint		    received_x11_damage    : 1;
+
+  guint		    needs_pixmap           : 1;
+
+  guint		    x11_size_changed       : 1;
+  guint             updates_frozen         : 1;
+
  guint             unredirected           : 1;

  /* This is used to detect fullscreen windows that need to be unredirected */
@ -170,7 +179,7 @@ static gboolean meta_window_actor_get_paint_volume (ClutterActor       *actor,
                                                    ClutterPaintVolume *volume);


-static void     meta_window_actor_detach     (MetaWindowActor *self);
+static void meta_window_actor_detach_x11_pixmap     (MetaWindowActor *self);
 static gboolean meta_window_actor_has_shadow (MetaWindowActor *self);

 static void meta_window_actor_handle_updates (MetaWindowActor *self);
@ -304,18 +313,21 @@ window_decorated_notify (MetaWindow *mw,
  else
    new_xwindow = meta_window_get_xwindow (mw);

-  meta_window_actor_detach (self);
-
-  /*
-   * First of all, clean up any resources we are currently using and will
-   * be replacing.
-   */
-  if (priv->damage != None)
+  if (!meta_is_wayland_compositor ())
    {
-      meta_error_trap_push (display);
-      XDamageDestroy (xdisplay, priv->damage);
-      meta_error_trap_pop (display);
-      priv->damage = None;
+      meta_window_actor_detach_x11_pixmap (self);
+
+      /*
+       * First of all, clean up any resources we are currently using and will
+       * be replacing.
+       */
+      if (priv->damage != None)
+        {
+          meta_error_trap_push (display);
+          XDamageDestroy (xdisplay, priv->damage);
+          meta_error_trap_pop (display);
+          priv->damage = None;
+        }
    }

  priv->xwindow = new_xwindow;
@ -346,8 +358,9 @@ meta_window_actor_constructed (GObject *object)
  Display                *xdisplay = meta_display_get_xdisplay (display);
  XRenderPictFormat      *format;

-  priv->damage = XDamageCreate (xdisplay, xwindow,
-                                XDamageReportBoundingBox);
+  if (!meta_is_wayland_compositor ())
+    priv->damage = XDamageCreate (xdisplay, xwindow,
+                                  XDamageReportBoundingBox);

  format = XRenderFindVisualFormat (xdisplay, window->xvisual);

@ -356,10 +369,16 @@ meta_window_actor_constructed (GObject *object)

  if (!priv->actor)
    {
-      priv->actor = meta_shaped_texture_new ();
+      if (meta_is_wayland_compositor ())
+        priv->actor = meta_shaped_texture_new_with_wayland_surface (window->surface);
+      else
+        priv->actor = meta_shaped_texture_new_with_xwindow (xwindow);

      clutter_actor_add_child (CLUTTER_ACTOR (self), priv->actor);

+      if (meta_is_wayland_compositor ())
+        clutter_actor_set_reactive (priv->actor, TRUE);
+
      /*
       * Since we are holding a pointer to this actor independently of the
       * ClutterContainer internals, and provide a public API to access it,
@ -369,10 +388,10 @@ meta_window_actor_constructed (GObject *object)
       */
      g_object_ref (priv->actor);

-      g_signal_connect (window, "notify::decorated",
-                        G_CALLBACK (window_decorated_notify), self);
-      g_signal_connect (window, "notify::appears-focused",
-                        G_CALLBACK (window_appears_focused_notify), self);
+      g_signal_connect_object (window, "notify::decorated",
+                               G_CALLBACK (window_decorated_notify), self, 0);
+      g_signal_connect_object (window, "notify::appears-focused",
+                               G_CALLBACK (window_appears_focused_notify), self, 0);
    }
  else
    {
@ -385,9 +404,10 @@ meta_window_actor_constructed (GObject *object)

  meta_window_actor_update_opacity (self);

-  /* Start off with an empty region to maintain the invariant that
-     the shape region is always set */
-  priv->shape_region = cairo_region_create();
+  /* Start off with empty regions to maintain the invariant that
+     these regions are always set */
+  priv->shape_region = cairo_region_create ();
+  priv->input_region = cairo_region_create ();
 }

 static void
@ -406,13 +426,18 @@ meta_window_actor_dispose (GObject *object)
  priv->disposed = TRUE;

  screen   = priv->screen;
-  display  = meta_screen_get_display (screen);
-  xdisplay = meta_display_get_xdisplay (display);
  info     = meta_screen_get_compositor_data (screen);

-  meta_window_actor_detach (self);
+  if (!meta_is_wayland_compositor ())
+    {
+      display  = meta_screen_get_display (screen);
+      xdisplay = meta_display_get_xdisplay (display);
+
+      meta_window_actor_detach_x11_pixmap (self);
+    }

  g_clear_pointer (&priv->shape_region, cairo_region_destroy);
+  g_clear_pointer (&priv->input_region, cairo_region_destroy);
  g_clear_pointer (&priv->opaque_region, cairo_region_destroy);
  g_clear_pointer (&priv->shadow_clip, cairo_region_destroy);

@ -421,7 +446,7 @@ meta_window_actor_dispose (GObject *object)
  g_clear_pointer (&priv->unfocused_shadow, meta_shadow_unref);
  g_clear_pointer (&priv->shadow_shape, meta_window_shape_unref);

-  if (priv->damage != None)
+  if (!meta_is_wayland_compositor () && priv->damage != None)
    {
      meta_error_trap_push (display);
      XDamageDestroy (xdisplay, priv->damage);
@ -893,7 +918,8 @@ meta_window_actor_showing_on_its_workspace (MetaWindowActor *self)
 static void
 meta_window_actor_freeze (MetaWindowActor *self)
 {
-  self->priv->freeze_count++;
+  if (!meta_is_wayland_compositor ())
+    self->priv->freeze_count++;
 }

 static void
@ -922,30 +948,33 @@ meta_window_actor_damage_all (MetaWindowActor *self)
 static void
 meta_window_actor_thaw (MetaWindowActor *self)
 {
-  self->priv->freeze_count--;
-
-  if (G_UNLIKELY (self->priv->freeze_count < 0))
+  if (!meta_is_wayland_compositor ())
    {
-      g_warning ("Error in freeze/thaw accounting.");
-      self->priv->freeze_count = 0;
-      return;
+      self->priv->freeze_count--;
+
+      if (G_UNLIKELY (self->priv->freeze_count < 0))
+        {
+          g_warning ("Error in freeze/thaw accounting.");
+          self->priv->freeze_count = 0;
+          return;
+        }
+
+      if (self->priv->freeze_count)
+        return;
+
+      /* We sometimes ignore moves and resizes on frozen windows */
+      meta_window_actor_sync_actor_geometry (self, FALSE);
+
+      /* We do this now since we might be going right back into the
+       * frozen state */
+      meta_window_actor_handle_updates (self);
+
+      /* Since we ignore damage events while a window is frozen for certain effects
+       * we may need to issue an update_area() covering the whole pixmap if we
+       * don't know what real damage has happened. */
+      if (self->priv->needs_damage_all)
+        meta_window_actor_damage_all (self);
    }
-
-  if (self->priv->freeze_count)
-    return;
-
-  /* We sometimes ignore moves and resizes on frozen windows */
-  meta_window_actor_sync_actor_geometry (self, FALSE);
-
-  /* We do this now since we might be going right back into the
-   * frozen state */
-  meta_window_actor_handle_updates (self);
-
-  /* Since we ignore damage events while a window is frozen for certain effects
-   * we may need to issue an update_area() covering the whole pixmap if we
-   * don't know what real damage has happened. */
-  if (self->priv->needs_damage_all)
-    meta_window_actor_damage_all (self);
 }

 void
@ -976,7 +1005,7 @@ meta_window_actor_queue_frame_drawn (MetaWindowActor *self,
       * send a _NET_WM_FRAME_DRAWN. We do a 1-pixel redraw to get
       * consistent timing with non-empty frames.
       */
-      if (priv->mapped && !priv->needs_pixmap)
+      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);
@ -1002,7 +1031,7 @@ is_frozen (MetaWindowActor *self)
 }

 static void
-meta_window_actor_queue_create_pixmap (MetaWindowActor *self)
+meta_window_actor_queue_create_x11_pixmap (MetaWindowActor *self)
 {
  MetaWindowActorPrivate *priv = self->priv;

@ -1106,11 +1135,14 @@ meta_window_actor_after_effects (MetaWindowActor *self)
  meta_window_actor_sync_visibility (self);
  meta_window_actor_sync_actor_geometry (self, FALSE);

-  if (!meta_window_is_mapped (priv->window))
-    meta_window_actor_detach (self);
+  if (!meta_is_wayland_compositor ())
+    {
+      if (!meta_window_is_mapped (priv->window))
+        meta_window_actor_detach_x11_pixmap (self);

-  if (priv->needs_pixmap)
-    clutter_actor_queue_redraw (priv->actor);
+      if (priv->needs_pixmap)
+        clutter_actor_queue_redraw (priv->actor);
+    }
 }

 void
@ -1191,7 +1223,7 @@ meta_window_actor_effect_completed (MetaWindowActor *self,
 * pixmap for a new size.
 */
 static void
-meta_window_actor_detach (MetaWindowActor *self)
+meta_window_actor_detach_x11_pixmap (MetaWindowActor *self)
 {
  MetaWindowActorPrivate *priv     = self->priv;
  MetaScreen            *screen   = priv->screen;
@ -1212,7 +1244,7 @@ meta_window_actor_detach (MetaWindowActor *self)
  XFreePixmap (xdisplay, priv->back_pixmap);
  priv->back_pixmap = None;

-  meta_window_actor_queue_create_pixmap (self);
+  meta_window_actor_queue_create_x11_pixmap (self);
 }

 gboolean
@ -1227,7 +1259,7 @@ 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))
@ -1242,7 +1274,7 @@ meta_window_actor_should_unredirect (MetaWindowActor *self)
  if (meta_window_is_override_redirect (metaWindow))
    return TRUE;

-  if (priv->does_full_damage)
+  if (!meta_is_wayland_compositor () && priv->does_full_damage)
    return TRUE;

  return FALSE;
@ -1262,7 +1294,7 @@ meta_window_actor_set_redirected (MetaWindowActor *self, gboolean state)
      meta_error_trap_push (display);
      XCompositeRedirectWindow (xdisplay, xwin, CompositeRedirectManual);
      meta_error_trap_pop (display);
-      meta_window_actor_detach (self);
+      meta_window_actor_detach_x11_pixmap (self);
      self->priv->unredirected = FALSE;
    }
  else
@ -1284,6 +1316,9 @@ meta_window_actor_destroy (MetaWindowActor *self)

  priv = self->priv;

+  if (meta_is_wayland_compositor ())
+    meta_shaped_texture_set_wayland_surface (META_SHAPED_TEXTURE (priv->actor), NULL);
+
  window = priv->window;
  window_type = meta_window_get_window_type (window);
  meta_window_set_compositor_private (window, NULL);
@ -1335,15 +1370,21 @@ meta_window_actor_sync_actor_geometry (MetaWindowActor *self,

  meta_window_get_input_rect (priv->window, &window_rect);

-  if (priv->last_width != window_rect.width ||
-      priv->last_height != window_rect.height)
+  /* When running as a display server then we instead catch size changes when
+   * new buffers are attached */
+  if (!meta_is_wayland_compositor ())
    {
-      priv->size_changed = TRUE;
-      meta_window_actor_queue_create_pixmap (self);
-      meta_window_actor_update_shape (self);
+      if (priv->last_width != window_rect.width ||
+          priv->last_height != window_rect.height)
+        {
+          priv->x11_size_changed = TRUE;
+          meta_window_actor_queue_create_x11_pixmap (self);

-      priv->last_width = window_rect.width;
-      priv->last_height = window_rect.height;
+          meta_window_actor_update_shape (self);
+
+          priv->last_width = window_rect.width;
+          priv->last_height = window_rect.height;
+        }
    }

  if (meta_window_actor_effect_in_progress (self))
@ -1507,16 +1548,25 @@ meta_window_actor_new (MetaWindow *window)
  MetaWindowActor        *self;
  MetaWindowActorPrivate *priv;
  MetaFrame		 *frame;
-  Window		  top_window;
+  Window		  top_window = None;
  ClutterActor           *window_group;

-  frame = meta_window_get_frame (window);
-  if (frame)
-    top_window = meta_frame_get_xwindow (frame);
-  else
-    top_window = meta_window_get_xwindow (window);
+  if (window->client_type == META_WINDOW_CLIENT_TYPE_X11)
+    {
+      frame = meta_window_get_frame (window);
+      if (frame)
+        top_window = meta_frame_get_xwindow (frame);
+      else
+        top_window = meta_window_get_xwindow (window);

-  meta_verbose ("add window: Meta %p, xwin 0x%x\n", window, (guint)top_window);
+      meta_verbose ("add window: Meta %p, xwin 0x%x\n", window, (guint)top_window);
+    }
+  else
+    {
+      meta_verbose ("add window: Meta %p, wayland surface %p\n",
+                    window, window->surface);
+      top_window = None;
+    }

  self = g_object_new (META_TYPE_WINDOW_ACTOR,
                       "meta-window",         window,
@ -1525,22 +1575,25 @@ meta_window_actor_new (MetaWindow *window)
                       NULL);

  priv = self->priv;
-
-  priv->last_width = -1;
-  priv->last_height = -1;
-
  priv->mapped = meta_window_toplevel_is_mapped (priv->window);
-  if (priv->mapped)
-    meta_window_actor_queue_create_pixmap (self);

-  meta_window_actor_set_updates_frozen (self,
-                                        meta_window_updates_are_frozen (priv->window));
+  if (!meta_is_wayland_compositor ())
+    {
+      priv->last_width = -1;
+      priv->last_height = -1;

-  /* If a window doesn't start off with updates frozen, we should
-   * we should send a _NET_WM_FRAME_DRAWN immediately after the first drawn.
-   */
-  if (priv->window->extended_sync_request_counter && !priv->updates_frozen)
-    meta_window_actor_queue_frame_drawn (self, FALSE);
+      if (priv->mapped)
+        meta_window_actor_queue_create_x11_pixmap (self);
+
+      meta_window_actor_set_updates_frozen (self,
+                                            meta_window_updates_are_frozen (priv->window));
+
+      /* If a window doesn't start off with updates frozen, we should
+       * we should send a _NET_WM_FRAME_DRAWN immediately after the first drawn.
+       */
+      if (priv->window->extended_sync_request_counter && !priv->updates_frozen)
+        meta_window_actor_queue_frame_drawn (self, FALSE);
+    }

  meta_window_actor_sync_actor_geometry (self, priv->window->placed);

@ -1575,7 +1628,8 @@ meta_window_actor_mapped (MetaWindowActor *self)

  priv->mapped = TRUE;

-  meta_window_actor_queue_create_pixmap (self);
+  if (!meta_is_wayland_compositor ())
+    meta_window_actor_queue_create_x11_pixmap (self);
 }

 void
@ -1590,8 +1644,11 @@ meta_window_actor_unmapped (MetaWindowActor *self)
  if (meta_window_actor_effect_in_progress (self))
    return;

-  meta_window_actor_detach (self);
-  priv->needs_pixmap = FALSE;
+  if (!meta_is_wayland_compositor ())
+    {
+      meta_window_actor_detach_x11_pixmap (self);
+      priv->needs_pixmap = FALSE;
+    }
 }

 /**
@ -1609,10 +1666,21 @@ meta_window_actor_get_obscured_region (MetaWindowActor *self)
 {
  MetaWindowActorPrivate *priv = self->priv;

-  if (priv->back_pixmap && priv->opacity == 0xff && !priv->window->shaded)
-    return priv->opaque_region;
-  else
-    return NULL;
+  if (!priv->window->shaded)
+    {
+      if (meta_is_wayland_compositor ())
+        {
+          if (priv->opacity == 0xff)
+            return priv->opaque_region;
+        }
+      else
+        {
+          if (priv->back_pixmap && priv->opacity == 0xff)
+            return priv->opaque_region;
+        }
+    }
+
+  return NULL;
 }

 #if 0
@ -1725,8 +1793,11 @@ meta_window_actor_reset_visible_regions (MetaWindowActor *self)
  g_clear_pointer (&priv->shadow_clip, cairo_region_destroy);
 }

+/* When running as a wayland compositor we don't make requests for
+ * replacement pixmaps when resizing windows, we will instead be
+ * asked to attach replacement buffers by the clients. */
 static void
-check_needs_pixmap (MetaWindowActor *self)
+check_needs_x11_pixmap (MetaWindowActor *self)
 {
  MetaWindowActorPrivate *priv     = self->priv;
  MetaScreen          *screen   = priv->screen;
@ -1748,10 +1819,10 @@ check_needs_pixmap (MetaWindowActor *self)

  compositor = meta_display_get_compositor (display);

-  if (priv->size_changed)
+  if (priv->x11_size_changed)
    {
-      meta_window_actor_detach (self);
-      priv->size_changed = FALSE;
+      meta_window_actor_detach_x11_pixmap (self);
+      priv->x11_size_changed = FALSE;
    }

  meta_error_trap_push (display);
@ -1883,13 +1954,13 @@ check_needs_shadow (MetaWindowActor *self)
 }

 void
-meta_window_actor_process_damage (MetaWindowActor    *self,
-                                  XDamageNotifyEvent *event)
+meta_window_actor_process_x11_damage (MetaWindowActor    *self,
+                                      XDamageNotifyEvent *event)
 {
  MetaWindowActorPrivate *priv = self->priv;
  MetaCompScreen *info = meta_screen_get_compositor_data (priv->screen);

-  priv->received_damage = TRUE;
+  priv->received_x11_damage = TRUE;

  if (meta_window_is_fullscreen (priv->window) && g_list_last (info->windows)->data == self && !priv->unredirected)
    {
@ -1943,6 +2014,23 @@ meta_window_actor_process_damage (MetaWindowActor    *self,
  priv->repaint_scheduled = TRUE;
 }

+void
+meta_window_actor_process_wayland_damage (MetaWindowActor *self,
+                                          int x,
+                                          int y,
+                                          int width,
+                                          int height)
+{
+  MetaWindowActorPrivate *priv = self->priv;
+
+  if (!priv->mapped)
+    return;
+
+  meta_shaped_texture_update_area (META_SHAPED_TEXTURE (priv->actor),
+                                   x, y, width, height);
+  priv->repaint_scheduled = TRUE;
+}
+
 void
 meta_window_actor_sync_visibility (MetaWindowActor *self)
 {
@ -2083,21 +2171,35 @@ build_and_scan_frame_mask (MetaWindowActor       *self,
 }

 static void
-check_needs_reshape (MetaWindowActor *self)
+meta_window_actor_update_shape_region (MetaWindowActor       *self,
+                                       cairo_rectangle_int_t *client_area)
 {
  MetaWindowActorPrivate *priv = self->priv;
-  MetaScreen *screen = priv->screen;
-  MetaDisplay *display = meta_screen_get_display (screen);
-  MetaFrameBorders borders;
  cairo_region_t *region = NULL;
-  cairo_rectangle_int_t client_area;
-  gboolean needs_mask;

-  if (!priv->mapped)
-    return;
+  if (priv->window->frame != NULL && priv->window->shape_region != NULL)
+    {
+      region = cairo_region_copy (priv->window->shape_region);
+      cairo_region_translate (region, client_area->x, client_area->y);
+    }
+  else if (priv->window->shape_region != NULL)
+    {
+      region = cairo_region_reference (priv->window->shape_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);
+    }

-  if (!priv->needs_reshape)
-    return;
+  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;

  if (priv->shadow_shape != NULL)
    {
@ -2105,83 +2207,57 @@ check_needs_reshape (MetaWindowActor *self)
      priv->shadow_shape = NULL;
    }

-  meta_frame_calc_borders (priv->window->frame, &borders);
+  meta_window_actor_invalidate_shadow (self);
+}

-  client_area.x = borders.total.left;
-  client_area.y = borders.total.top;
-  client_area.width = priv->window->rect.width;
-  if (priv->window->shaded)
-    client_area.height = 0;
-  else
-    client_area.height = priv->window->rect.height;
+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;

-  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)
+  if (priv->window->frame != NULL && priv->window->shape_region != NULL)
    {
-      /* Translate the set of XShape rectangles that we
-       * get from the X server to a cairo_region. */
-      Display *xdisplay = meta_display_get_xdisplay (display);
-      XRectangle *rects;
-      int n_rects, ordering;
+      cairo_region_t *client_region = cairo_region_copy (priv->window->input_region);

-      meta_error_trap_push (display);
-      rects = XShapeGetRectangles (xdisplay,
-                                   priv->window->xwindow,
-                                   ShapeBounding,
-                                   &n_rects,
-                                   &ordering);
-      meta_error_trap_pop (display);
+      region = meta_frame_get_frame_bounds (priv->window->frame);

-      if (rects)
-        {
-          int i;
-          cairo_rectangle_int_t *cairo_rects = g_new (cairo_rectangle_int_t, n_rects);
-
-          for (i = 0; i < n_rects; i ++)
-            {
-              cairo_rects[i].x = rects[i].x + client_area.x;
-              cairo_rects[i].y = rects[i].y + client_area.y;
-              cairo_rects[i].width = rects[i].width;
-              cairo_rects[i].height = rects[i].height;
-            }
-
-          XFree (rects);
-          region = cairo_region_create_rectangles (cairo_rects, n_rects);
-          g_free (cairo_rects);
-        }
+      cairo_region_subtract_rectangle (region, client_area);
+      cairo_region_translate (client_region, client_area->x, client_area->y);
+      cairo_region_union (region, client_region);
+      cairo_region_destroy (client_region);
    }
-#endif
-
-  needs_mask = (region != NULL) || (priv->window->frame != NULL);
-
-  if (region != NULL)
+  else if (priv->window->shape_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->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);
+      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_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
@ -2193,27 +2269,46 @@ check_needs_reshape (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);
-    }
+  meta_shaped_texture_set_opaque_region (META_SHAPED_TEXTURE (priv->actor),
+                                         priv->opaque_region);
+}

-  priv->shape_region = region;
+static void
+check_needs_reshape (MetaWindowActor *self)
+{
+  MetaWindowActorPrivate *priv = self->priv;
+  MetaFrameBorders borders;
+  cairo_rectangle_int_t client_area;
+
+  if (!priv->mapped)
+    return;
+
+  if (!priv->needs_reshape)
+    return;
+
+  meta_frame_calc_borders (priv->window->frame, &borders);
+
+  client_area.x = borders.total.left;
+  client_area.y = borders.total.top;
+  client_area.width = priv->window->rect.width;
+  if (priv->window->shaded)
+    client_area.height = 0;
+  else
+    client_area.height = priv->window->rect.height;
+
+  meta_window_actor_update_shape_region (self, &client_area);
+  meta_window_actor_update_input_region (self, &client_area);
+  meta_window_actor_update_opaque_region (self);

  priv->needs_reshape = FALSE;
-  meta_window_actor_invalidate_shadow (self);
 }

 void
@ -2229,6 +2324,69 @@ meta_window_actor_update_shape (MetaWindowActor *self)
  clutter_actor_queue_redraw (priv->actor);
 }

+static void
+maybe_emit_size_changed (MetaWindowActor *self,
+                         MetaWaylandBuffer *new_buffer)
+{
+  MetaWindowActorPrivate *priv = self->priv;
+  int                     width = 0, height = 0;
+
+  if (new_buffer)
+    {
+      width = new_buffer->width;
+      height = new_buffer->height;
+    }
+
+  if (priv->last_width != width || priv->last_height != height)
+    {
+      meta_window_actor_update_shape (self);
+
+      /* ::size-changed is supposed to refer to meta_window_get_outer_rect()
+       * but here we are only looking at buffer size changes.
+       *
+       * Emitting it here works pretty much OK because a new buffer size (which
+       * will correspond to the outer rect with the addition of invisible
+       * borders) also normally implies a change to the outer rect. In the rare
+       * case where a change to the window size was exactly balanced by a
+       * change to the invisible borders, we would miss emitting the signal.
+       */
+      g_signal_emit (self, signals[SIZE_CHANGED], 0);
+
+      priv->last_width = width;
+      priv->last_height = height;
+    }
+}
+
+void
+meta_window_actor_set_wayland_surface (MetaWindowActor *self,
+                                       MetaWaylandSurface *surface)
+{
+  MetaWindowActorPrivate *priv = self->priv;
+
+  meta_shaped_texture_set_wayland_surface (META_SHAPED_TEXTURE (priv->actor),
+                                           surface);
+  if (surface && surface->buffer_ref.buffer)
+    maybe_emit_size_changed (self, surface->buffer_ref.buffer);
+
+  meta_window_actor_invalidate_shadow (self);
+}
+
+void
+meta_window_actor_attach_wayland_buffer (MetaWindowActor *self,
+                                         MetaWaylandBuffer *buffer)
+{
+  MetaWindowActorPrivate *priv = self->priv;
+  MetaShapedTexture *stex = META_SHAPED_TEXTURE (priv->actor);
+  CoglTexture *prev_tex = meta_shaped_texture_get_texture (stex);
+
+  meta_shaped_texture_attach_wayland_buffer (stex, buffer);
+
+  if (!prev_tex)
+    meta_window_actor_sync_actor_geometry (self, FALSE);
+
+  maybe_emit_size_changed (self, buffer);
+}
+
 static void
 meta_window_actor_handle_updates (MetaWindowActor *self)
 {
@ -2244,42 +2402,46 @@ meta_window_actor_handle_updates (MetaWindowActor *self)
      return;
    }

-  if (priv->unredirected)
+  if (!meta_is_wayland_compositor ())
    {
-      /* Nothing to do here until/if the window gets redirected again */
-      return;
+      if (priv->unredirected)
+        {
+          /* Nothing to do here until/if the window gets redirected again */
+          return;
+        }
+
+      if (priv->received_x11_damage)
+        {
+          meta_error_trap_push (display);
+          XDamageSubtract (xdisplay, priv->damage, None, None);
+          meta_error_trap_pop (display);
+
+          /* We need to make sure that any X drawing that happens before the
+           * XDamageSubtract() above is visible to subsequent GL rendering;
+           * the only standardized way to do this is EXT_x11_sync_object,
+           * which isn't yet widely available. For now, we count on details
+           * of Xorg and the open source drivers, and hope for the best
+           * otherwise.
+           *
+           * Xorg and open source driver specifics:
+           *
+           * The X server makes sure to flush drawing to the kernel before
+           * sending out damage events, but since we use DamageReportBoundingBox
+           * there may be drawing between the last damage event and the
+           * XDamageSubtract() that needs to be flushed as well.
+           *
+           * Xorg always makes sure that drawing is flushed to the kernel
+           * before writing events or responses to the client, so any round trip
+           * request at this point is sufficient to flush the GLX buffers.
+           */
+          XSync (xdisplay, False);
+
+          priv->received_x11_damage = FALSE;
+        }
+
+      check_needs_x11_pixmap (self);
    }

-  if (priv->received_damage)
-    {
-      meta_error_trap_push (display);
-      XDamageSubtract (xdisplay, priv->damage, None, None);
-      meta_error_trap_pop (display);
-
-      /* We need to make sure that any X drawing that happens before the
-       * XDamageSubtract() above is visible to subsequent GL rendering;
-       * the only standardized way to do this is EXT_x11_sync_object,
-       * which isn't yet widely available. For now, we count on details
-       * of Xorg and the open source drivers, and hope for the best
-       * otherwise.
-       *
-       * Xorg and open source driver specifics:
-       *
-       * The X server makes sure to flush drawing to the kernel before
-       * sending out damage events, but since we use DamageReportBoundingBox
-       * there may be drawing between the last damage event and the
-       * XDamageSubtract() that needs to be flushed as well.
-       *
-       * Xorg always makes sure that drawing is flushed to the kernel
-       * before writing events or responses to the client, so any round trip
-       * request at this point is sufficient to flush the GLX buffers.
-       */
-      XSync (xdisplay, False);
-
-      priv->received_damage = FALSE;
-    }
-
-  check_needs_pixmap (self);
  check_needs_reshape (self);
  check_needs_shadow (self);
 }
@ -2458,16 +2620,20 @@ void
 meta_window_actor_set_updates_frozen (MetaWindowActor *self,
                                      gboolean         updates_frozen)
 {
-  MetaWindowActorPrivate *priv = self->priv;
-
-  updates_frozen = updates_frozen != FALSE;
-
-  if (priv->updates_frozen != updates_frozen)
+  /* On wayland we shouldn't need to ever freeze updates... */
+  if (!meta_is_wayland_compositor ())
    {
-      priv->updates_frozen = updates_frozen;
-      if (updates_frozen)
-        meta_window_actor_freeze (self);
-      else
-        meta_window_actor_thaw (self);
+      MetaWindowActorPrivate *priv = self->priv;
+
+      updates_frozen = updates_frozen != FALSE;
+
+      if (priv->updates_frozen != updates_frozen)
+        {
+          priv->updates_frozen = updates_frozen;
+          if (updates_frozen)
+            meta_window_actor_freeze (self);
+          else
+            meta_window_actor_thaw (self);
+        }
    }
 }
--- a/src/compositor/meta-window-group.c
+++ b/src/compositor/meta-window-group.c
@ -13,6 +13,7 @@
 #include "meta-window-group.h"
 #include "meta-background-actor-private.h"
 #include "meta-background-group-private.h"
+#include "window-private.h"

 struct _MetaWindowGroupClass
 {
@ -99,7 +100,7 @@ meta_window_group_paint (ClutterActor *actor)
  int paint_x_offset, paint_y_offset;

  MetaWindowGroup *window_group = META_WINDOW_GROUP (actor);
-  MetaCompScreen *info = meta_screen_get_compositor_data (window_group->screen);
+  MetaCompScreen *info;

  /* 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
@ -136,13 +137,17 @@ meta_window_group_paint (ClutterActor *actor)

  visible_region = cairo_region_create_rectangle (&visible_rect);

-  if (info->unredirected_window != NULL)
+  if (!meta_is_wayland_compositor ())
    {
-      cairo_rectangle_int_t unredirected_rect;
-      MetaWindow *window = meta_window_actor_get_meta_window (info->unredirected_window);
+      info = meta_screen_get_compositor_data (window_group->screen);
+      if (info->unredirected_window != NULL)
+        {
+          cairo_rectangle_int_t unredirected_rect;
+          MetaWindow *window = meta_window_actor_get_meta_window (info->unredirected_window);

-      meta_window_get_outer_rect (window, (MetaRectangle *)&unredirected_rect);
-      cairo_region_subtract_rectangle (visible_region, &unredirected_rect);
+          meta_window_get_outer_rect (window, (MetaRectangle *)&unredirected_rect);
+          cairo_region_subtract_rectangle (visible_region, &unredirected_rect);
+        }
    }

  /* We walk the list from top to bottom (opposite of painting order),
@ -155,7 +160,8 @@ meta_window_group_paint (ClutterActor *actor)
      if (!CLUTTER_ACTOR_IS_VISIBLE (child))
        continue;

-      if (info->unredirected_window != NULL &&
+      if (!meta_is_wayland_compositor () &&
+          info->unredirected_window != NULL &&
          child == CLUTTER_ACTOR (info->unredirected_window))
        continue;

--- a/src/compositor/plugins/default.c
+++ b/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);
+}
--- a/src/core/core.c
+++ b/src/core/core.c
@ -269,6 +269,8 @@ meta_core_lower_beneath_grab_window (Display *xdisplay,
  MetaDisplay *display;
  MetaScreen *screen;
  MetaWindow *grab_window;
+  MetaStackWindow stack_window;
+  MetaStackWindow stack_sibling;

  display = meta_display_for_x_display (xdisplay);
  screen = meta_display_screen_for_xwindow (display, xwindow);
@ -281,9 +283,13 @@ meta_core_lower_beneath_grab_window (Display *xdisplay,
  changes.sibling = grab_window->frame ? grab_window->frame->xwindow
                                       : grab_window->xwindow;

+  stack_window.any.type = META_WINDOW_CLIENT_TYPE_X11;
+  stack_window.x11.xwindow = xwindow;
+  stack_sibling.any.type = META_WINDOW_CLIENT_TYPE_X11;
+  stack_sibling.x11.xwindow = changes.sibling;
  meta_stack_tracker_record_lower_below (screen->stack_tracker,
-                                         xwindow,
-                                         changes.sibling,
+                                         &stack_window,
+                                         &stack_sibling,
                                         XNextRequest (screen->display->xdisplay));

  meta_error_trap_push (display);
--- a/src/core/display-private.h
+++ b/src/core/display-private.h
@ -86,6 +86,14 @@ typedef enum {
  META_TILE_MAXIMIZED
 } MetaTileMode;

+typedef enum {
+  META_FOCUS_NONE = 0,
+  META_FOCUS_X_CLIENT = 1,
+  META_FOCUS_WAYLAND_CLIENT = 2,
+  META_FOCUS_NO_FOCUS_WINDOW = 3,
+  META_FOCUS_STAGE = 4
+} MetaFocusType;
+
 struct _MetaDisplay
 {
  GObject parent_instance;
@ -117,6 +125,7 @@ struct _MetaDisplay
   * like the no_focus_window or the stage X window. */
  Window focus_xwindow;
  gulong focus_serial;
+  MetaFocusType focus_type;

  /* last timestamp passed to XSetInputFocus */
  guint32 last_focus_time;
@ -467,14 +476,18 @@ 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);
+
 #ifdef HAVE_XI23
 gboolean meta_display_process_barrier_event (MetaDisplay    *display,
                                             XIBarrierEvent *event);
 #endif /* HAVE_XI23 */

-void meta_display_set_input_focus_xwindow (MetaDisplay *display,
-                                           MetaScreen  *screen,
-                                           Window       window,
-                                           guint32      timestamp);
+void meta_display_set_input_focus_xwindow (MetaDisplay   *display,
+                                           MetaScreen    *screen,
+                                           MetaFocusType  type,
+                                           Window         window,
+                                           guint32        timestamp);

 #endif
--- a/src/core/display.c
+++ b/src/core/display.c
@ -53,6 +53,7 @@
 #include <X11/Xatom.h>
 #include <X11/cursorfont.h>
 #include "mutter-enum-types.h"
+#include "meta-idle-monitor-private.h"

 #ifdef HAVE_RANDR
 #include <X11/extensions/Xrandr.h>
@ -74,6 +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    ||  \
@ -515,6 +518,9 @@ meta_display_open (void)
      return FALSE;
    }

+  if (meta_is_wayland_compositor ())
+    meta_xwayland_complete_init ();
+
  if (meta_is_syncing ())
    XSynchronize (xdisplay, True);
  
@ -931,8 +937,24 @@ meta_display_open (void)
  while (tmp != NULL)
    {
      MetaScreen *screen = tmp->data;
-	
-      meta_screen_manage_all_windows (screen);
+
+      if (meta_is_wayland_compositor ())
+        {
+          /* Instead of explicitly enumerating all windows during
+           * initialization, when we run as a wayland compositor we can rely on
+           * xwayland notifying us of all top level windows so we create
+           * MetaWindows when we get those notifications.
+           *
+           * We still want a guard window so we can avoid
+           * unmapping/withdrawing minimized windows for live
+           * thumbnails...
+           */
+          if (screen->guard_window == None)
+            screen->guard_window =
+              meta_screen_create_guard_window (screen->display->xdisplay, screen);
+        }
+      else
+        meta_screen_manage_all_windows (screen);

      tmp = tmp->next;
    }
@ -974,8 +996,10 @@ meta_display_open (void)

    meta_error_trap_pop (the_display);
  }
-  
-  meta_display_ungrab (the_display);  
+
+  meta_idle_monitor_init_dbus ();
+
+  meta_display_ungrab (the_display);

  /* Done opening new display */
  the_display->display_opening = FALSE;
@ -1881,14 +1905,19 @@ get_input_event (MetaDisplay *display,
 }

 static void
-update_focus_window (MetaDisplay *display,
-                     MetaWindow  *window,
-                     Window       xwindow,
-                     gulong       serial)
+update_focus_window (MetaDisplay   *display,
+                     MetaFocusType  type,
+                     MetaWindow    *window,
+                     Window         xwindow,
+                     gulong         serial)
 {
+  MetaWaylandCompositor *compositor;
+
  display->focus_serial = serial;

-  if (display->focus_xwindow == xwindow)
+  if (display->focus_xwindow == xwindow &&
+      display->focus_type == type &&
+      display->focus_window == window)
    return;

  if (display->focus_window)
@ -1910,6 +1939,7 @@ update_focus_window (MetaDisplay *display,
      meta_window_set_focused_internal (previous, FALSE);
    }

+  display->focus_type = type;
  display->focus_window = window;
  display->focus_xwindow = xwindow;

@ -1922,6 +1952,19 @@ update_focus_window (MetaDisplay *display,
  else
    meta_topic (META_DEBUG_FOCUS, "* Focus --> NULL with serial %lu\n", serial);

+  if (meta_is_wayland_compositor ())
+    {
+      compositor = meta_wayland_compositor_get_default ();
+
+      if (display->focus_type == META_FOCUS_NO_FOCUS_WINDOW ||
+          display->focus_type == META_FOCUS_STAGE)
+        meta_wayland_compositor_set_input_focus (compositor, NULL);
+      else if (window && window->surface)
+        meta_wayland_compositor_set_input_focus (compositor, window);
+      else
+        meta_topic (META_DEBUG_FOCUS, "Focus change has no effect, because there is no matching wayland surface");
+     }
+
  g_object_notify (G_OBJECT (display), "focus-window");
  meta_display_update_active_window_hint (display);
 }
@ -1956,19 +1999,18 @@ timestamp_too_old (MetaDisplay *display,
 }

 static void
-request_xserver_input_focus_change (MetaDisplay *display,
-                                    MetaScreen  *screen,
-                                    Window       xwindow,
-                                    guint32      timestamp)
+request_xserver_input_focus_change (MetaDisplay   *display,
+                                    MetaScreen    *screen,
+                                    MetaFocusType  type,
+                                    MetaWindow    *meta_window,
+                                    Window         xwindow,
+                                    guint32        timestamp)
 {
-  MetaWindow *meta_window;
  gulong serial;

  if (timestamp_too_old (display, &timestamp))
    return;

-  meta_window = meta_display_lookup_x_window (display, xwindow);
-
  meta_error_trap_push (display);

  /* In order for mutter to know that the focus request succeeded, we track
@ -1995,6 +2037,7 @@ request_xserver_input_focus_change (MetaDisplay *display,
  meta_display_ungrab (display);

  update_focus_window (display,
+                       type,
                       meta_window,
                       xwindow,
                       serial);
@ -2015,9 +2058,12 @@ handle_window_focus_event (MetaDisplay  *display,
                           unsigned long serial)
 {
  MetaWindow *focus_window;
+  MetaFocusType type;
 #ifdef WITH_VERBOSE_MODE
  const char *window_type;

+  type = META_FOCUS_NONE;
+
  /* Note the event can be on either the window or the frame,
   * we focus the frame for shaded windows
   */
@ -2029,14 +2075,26 @@ handle_window_focus_event (MetaDisplay  *display,
        window_type = "frame window";
      else
        window_type = "unknown client window";
+
+      if (window->client_type == META_WINDOW_CLIENT_TYPE_WAYLAND)
+        type = META_FOCUS_WAYLAND_CLIENT;
+      else
+        type = META_FOCUS_X_CLIENT;
    }
  else if (meta_display_xwindow_is_a_no_focus_window (display, event->event))
-    window_type = "no_focus_window";
+    {
+      window_type = "no_focus_window";
+      type = META_FOCUS_NO_FOCUS_WINDOW;
+    }
  else if (meta_display_screen_for_root (display, event->event))
    window_type = "root window";
  else
    window_type = "unknown window";

+  /* Don't change type if we don't know the new window */
+  if (type == META_FOCUS_NONE)
+    type = display->focus_type;
+
  meta_topic (META_DEBUG_FOCUS,
              "Focus %s event received on %s 0x%lx (%s) "
              "mode %s detail %s serial %lu\n",
@ -2114,6 +2172,7 @@ handle_window_focus_event (MetaDisplay  *display,
  if (display->server_focus_serial > display->focus_serial)
    {
      update_focus_window (display,
+                           type,
                           focus_window,
                           focus_window ? focus_window->xwindow : None,
                           display->server_focus_serial);
@ -2121,10 +2180,9 @@ handle_window_focus_event (MetaDisplay  *display,
 }

 /**
- * event_callback:
+ * meta_display_handle_event:
+ * @display: The MetaDisplay that events are coming from
 * @event: The event that just happened
- * @data: The #MetaDisplay that events are coming from, cast to a gpointer
- *        so that it can be sent to a callback
 *
 * This is the most important function in the whole program. It is the heart,
 * it is the nexus, it is the Grand Central Station of Mutter's world.
@ -2134,21 +2192,20 @@ handle_window_focus_event (MetaDisplay  *display,
 * busy around here. Most of this function is a ginormous switch statement
 * dealing with all the kinds of events that might turn up.
 */
-static gboolean
-event_callback (XEvent   *event,
-                gpointer  data)
+gboolean
+meta_display_handle_event (MetaDisplay *display,
+                           XEvent   *event)
 {
  MetaWindow *window;
  MetaWindow *property_for_window;
-  MetaDisplay *display;
  Window modified;
  gboolean frame_was_receiver;
  gboolean bypass_compositor;
  gboolean filter_out_event;
  XIEvent *input_event;
+  MetaMonitorManager *monitor;
+  MetaScreen *screen;

-  display = data;
-  
 #ifdef WITH_VERBOSE_MODE
  if (dump_events)
    meta_spew_event (display, event);
@ -2157,6 +2214,14 @@ event_callback (XEvent   *event,
 #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;
@ -2170,11 +2235,19 @@ event_callback (XEvent   *event,
      meta_topic (META_DEBUG_FOCUS, "Earlier attempt to focus %s failed\n",
                  display->focus_window->desc);
      update_focus_window (display,
+                           META_FOCUS_NONE,
                           meta_display_lookup_x_window (display, display->server_focus_window),
                           display->server_focus_window,
                           display->server_focus_serial);
    }

+  screen = meta_display_screen_for_root (display, event->xany.window);
+  if (screen)
+    {
+      if (meta_screen_handle_xevent (screen, event))
+        return TRUE;
+    }
+
  modified = event_get_modified_window (display, event);

  input_event = get_input_event (display, event);
@ -2247,6 +2320,8 @@ event_callback (XEvent   *event,
          meta_window_update_sync_request_counter (alarm_window, new_counter_value);
          filter_out_event = TRUE; /* GTK doesn't want to see this really */
        }
+      else
+        meta_idle_monitor_handle_xevent_all (event);
    }
 #endif /* HAVE_XSYNC */

@ -2261,32 +2336,9 @@ event_callback (XEvent   *event,
          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_shape_changed (display->compositor,
-                                                      window);
-            }
+            meta_window_update_shape_region_x11 (window);
+          else if (sev->kind == ShapeInput)
+            meta_window_update_input_region_x11 (window);
        }
      else
        {
@ -2822,32 +2874,10 @@ event_callback (XEvent   *event,
                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 */
@ -3138,6 +3168,30 @@ event_callback (XEvent   *event,
  return filter_out_event;
 }

+static gboolean
+event_callback (XEvent  *event,
+                gpointer data)
+{
+  MetaDisplay *display = data;
+
+  /* Under Wayland we want to filter out mouse motion events so we can
+     synthesize them from the Clutter events instead. This is
+     necessary because the position in the mouse events is passed to
+     the X server relative to the position of the surface. The X
+     server then translates these back to screen coordinates based on
+     the window position. If we rely on this translatation when
+     dragging a window around then the window will jump around
+     erratically because of the lag between updating the window
+     position from the surface position. Instead we bypass the
+     translation altogether by directly using the Clutter events */
+  if (meta_is_wayland_compositor () &&
+      event->type == GenericEvent &&
+      event->xcookie.evtype == XI_Motion)
+    return FALSE;
+
+  return meta_display_handle_event (display, event);
+}
+
 /* Return the window this has to do with, if any, rather
 * than the frame or root window that was selecting
 * for substructure
@ -5789,6 +5843,9 @@ meta_display_set_input_focus_window (MetaDisplay *display,
 {
  request_xserver_input_focus_change (display,
                                      window->screen,
+                                      window->client_type == META_WINDOW_CLIENT_TYPE_WAYLAND ?
+                                      META_FOCUS_WAYLAND_CLIENT : META_FOCUS_X_CLIENT,
+                                      window,
                                      focus_frame ? window->frame->xwindow : window->xwindow,
                                      timestamp);
 }
@ -5829,13 +5886,16 @@ meta_display_request_take_focus (MetaDisplay *display,
 }

 void
-meta_display_set_input_focus_xwindow (MetaDisplay *display,
-                                      MetaScreen  *screen,
-                                      Window       window,
-                                      guint32      timestamp)
+meta_display_set_input_focus_xwindow (MetaDisplay   *display,
+                                      MetaScreen    *screen,
+                                      MetaFocusType  type,
+                                      Window         window,
+                                      guint32        timestamp)
 {
  request_xserver_input_focus_change (display,
                                      screen,
+                                      type,
+                                      NULL,
                                      window,
                                      timestamp);
 }
@ -5847,6 +5907,8 @@ meta_display_focus_the_no_focus_window (MetaDisplay *display,
 {
  request_xserver_input_focus_change (display,
                                      screen,
+                                      META_FOCUS_NO_FOCUS_WINDOW,
+                                      NULL,
                                      screen->no_focus_window,
                                      timestamp);
 }
--- a/src/core/edid-parse.c
+++ b/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;
+    }
+}
--- a/src/core/edid.h
+++ b/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
--- a/src/core/frame.c
+++ b/src/core/frame.c
@ -47,6 +47,7 @@ meta_window_ensure_frame (MetaWindow *window)
  XSetWindowAttributes attrs;
  Visual *visual;
  gulong create_serial;
+  MetaStackWindow stack_window;
  
  if (window->frame)
    return;
@ -105,8 +106,10 @@ meta_window_ensure_frame (MetaWindow *window)
 						frame->rect.height,
 						frame->window->screen->number,
                                                &create_serial);
+  stack_window.any.type = META_WINDOW_CLIENT_TYPE_X11;
+  stack_window.x11.xwindow = frame->xwindow;
  meta_stack_tracker_record_add (window->screen->stack_tracker,
-                                 frame->xwindow,
+                                 &stack_window,
                                 create_serial);

  meta_verbose ("Frame for %s is 0x%lx\n", frame->window->desc, frame->xwindow);
@ -138,8 +141,9 @@ meta_window_ensure_frame (MetaWindow *window)
  window->rect.x = 0;
  window->rect.y = 0;

+  stack_window.x11.xwindow = window->xwindow;
  meta_stack_tracker_record_remove (window->screen->stack_tracker,
-                                    window->xwindow,
+                                    &stack_window,
                                    XNextRequest (window->display->xdisplay));
  XReparentWindow (window->display->xdisplay,
                   window->xwindow,
@ -174,6 +178,7 @@ meta_window_destroy_frame (MetaWindow *window)
 {
  MetaFrame *frame;
  MetaFrameBorders borders;
+  MetaStackWindow stack_window;
  
  if (window->frame == NULL)
    return;
@ -200,8 +205,10 @@ meta_window_destroy_frame (MetaWindow *window)
                  "Incrementing unmaps_pending on %s for reparent back to root\n", window->desc);
      window->unmaps_pending += 1;
    }
+  stack_window.any.type = META_WINDOW_CLIENT_TYPE_X11;
+  stack_window.x11.xwindow = window->xwindow;
  meta_stack_tracker_record_add (window->screen->stack_tracker,
-                                 window->xwindow,
+                                 &stack_window,
                                 XNextRequest (window->display->xdisplay));
  XReparentWindow (window->display->xdisplay,
                   window->xwindow,
--- a/src/core/main.c
+++ b/src/core/main.c
@ -55,6 +55,7 @@
 #include "session.h"
 #include <meta/prefs.h>
 #include <meta/compositor.h>
+#include "meta-wayland-private.h"

 #include <glib-object.h>
 #include <gdk/gdkx.h>
@ -346,28 +347,64 @@ meta_finalize (void)
  if (display)
    meta_display_close (display,
                        CurrentTime); /* I doubt correct timestamps matter here */
+
+  if (meta_is_wayland_compositor ())
+    meta_wayland_finalize ();
 }

-static int sigterm_pipe_fds[2] = { -1, -1 };
+static int signal_pipe_fds[2] = { -1, -1 };

 static void
-sigterm_handler (int signum)
+signal_handler (int signum)
 {
-  if (sigterm_pipe_fds[1] >= 0)
+  if (signal_pipe_fds[1] >= 0)
    {
-      int G_GNUC_UNUSED dummy;
-
-      dummy = write (sigterm_pipe_fds[1], "", 1);
-      close (sigterm_pipe_fds[1]);
-      sigterm_pipe_fds[1] = -1;
+      switch (signum)
+        {
+        case SIGTERM:
+          write (signal_pipe_fds[1], "T", 1);
+          break;
+        default:
+          break;
+        }
    }
 }

 static gboolean
-on_sigterm (void)
+on_signal (GIOChannel *source,
+           GIOCondition condition,
+           void *data)
 {
-  meta_quit (META_EXIT_SUCCESS);
-  return FALSE;
+  char signal;
+  int count;
+
+  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;
 }

 /**
@ -396,17 +433,17 @@ meta_init (void)
                g_strerror (errno));
 #endif

-  if (pipe (sigterm_pipe_fds) != 0)
-    g_printerr ("Failed to create SIGTERM pipe: %s\n",
+  if (pipe (signal_pipe_fds) != 0)
+    g_printerr ("Failed to create signal pipe: %s\n",
                g_strerror (errno));

-  channel = g_io_channel_unix_new (sigterm_pipe_fds[0]);
+  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_sigterm, 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 = &sigterm_handler;
+  act.sa_handler = &signal_handler;
  if (sigaction (SIGTERM, &act, NULL) < 0)
    g_printerr ("Failed to register SIGTERM handler: %s\n",
 		g_strerror (errno));
@ -427,9 +464,16 @@ meta_init (void)
  g_irepository_prepend_search_path (MUTTER_PKGLIBDIR);
 #endif

-  meta_set_syncing (opt_sync || (g_getenv ("MUTTER_SYNC") != NULL));
+  if (meta_is_wayland_compositor ())
+    {
+      /* NB: When running as a hybrid wayland compositor we run our own headless X
+       * server so the user can't control the X display to connect too. */
+      meta_wayland_init ();
+    }
+  else
+    meta_select_display (opt_display_name);

-  meta_select_display (opt_display_name);
+  meta_set_syncing (opt_sync || (g_getenv ("MUTTER_SYNC") != NULL));
  
  if (opt_replace_wm)
    meta_set_replace_current_wm (TRUE);
@ -441,10 +485,17 @@ meta_init (void)
  
  meta_ui_init ();

-  /*
-   * Clutter can only be initialized after the UI.
-   */
-  meta_clutter_init ();
+  /* If we are running with wayland then we don't wait until we have
+   * an X connection before initializing clutter we instead initialize
+   * it earlier since we need to initialize the GL driver so the driver
+   * can register any needed wayland extensions. */
+  if (!meta_is_wayland_compositor ())
+    {
+      /*
+       * Clutter can only be initialized after the UI.
+       */
+      meta_clutter_init ();
+    }
 }

 /**
--- a/src/core/meta-cursor-tracker-private.h
+++ b/src/core/meta-cursor-tracker-private.h
@ -0,0 +1,47 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright 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>
+ */
+
+#ifndef META_CURSOR_TRACKER_PRIVATE_H
+#define META_CURSOR_TRACKER_PRIVATE_H
+
+#include <meta/meta-cursor-tracker.h>
+#include <clutter/clutter.h>
+
+gboolean meta_cursor_tracker_handle_xevent (MetaCursorTracker *tracker,
+					    XEvent            *xevent);
+
+void     meta_cursor_tracker_set_root_cursor (MetaCursorTracker *tracker,
+                                              MetaCursor         cursor);
+void     meta_cursor_tracker_revert_root     (MetaCursorTracker *tracker);
+void     meta_cursor_tracker_set_sprite      (MetaCursorTracker *tracker,
+                                              CoglTexture2D     *texture,
+                                              int                hot_x,
+                                              int                hot_y);
+
+void     meta_cursor_tracker_update_position (MetaCursorTracker *tracker,
+					      int                new_x,
+					      int                new_y);
+void     meta_cursor_tracker_paint           (MetaCursorTracker *tracker);
+void     meta_cursor_tracker_queue_redraw    (MetaCursorTracker *tracker,
+					      ClutterActor      *stage);
+#endif
--- a/src/core/meta-cursor-tracker.c
+++ b/src/core/meta-cursor-tracker.c
@ -0,0 +1,458 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* 
+ * Copyright 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>
+ */
+
+/**
+ * SECTION:cursor-tracker
+ * @title: MetaCursorTracker
+ * @short_description: Mutter cursor tracking helper
+ */
+
+#include <config.h>
+#include <meta/main.h>
+#include <meta/util.h>
+#include <meta/errors.h>
+
+#include <cogl/cogl.h>
+#include <clutter/clutter.h>
+
+#include <X11/extensions/Xfixes.h>
+
+#include "meta-cursor-tracker-private.h"
+#include "screen-private.h"
+
+#ifdef HAVE_WAYLAND
+#include "meta-wayland-private.h"
+#endif
+
+#define META_WAYLAND_DEFAULT_CURSOR_HOTSPOT_X 7
+#define META_WAYLAND_DEFAULT_CURSOR_HOTSPOT_Y 4
+
+struct _MetaCursorTracker {
+  GObject parent_instance;
+
+  MetaScreen *screen;
+
+  gboolean is_showing;
+
+  CoglTexture2D *sprite;
+  int hot_x, hot_y;
+
+  CoglTexture2D *root_cursor;
+  int root_hot_x, root_hot_y;
+
+  CoglTexture2D *default_cursor;
+
+  int current_x, current_y;
+  cairo_rectangle_int_t current_rect;
+  cairo_rectangle_int_t previous_rect;
+  gboolean previous_is_valid;
+
+  CoglPipeline *pipeline;
+};
+
+struct _MetaCursorTrackerClass {
+  GObjectClass parent_class;
+};
+
+G_DEFINE_TYPE (MetaCursorTracker, meta_cursor_tracker, G_TYPE_OBJECT);
+
+enum {
+    CURSOR_CHANGED,
+    LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL];
+
+static void
+meta_cursor_tracker_init (MetaCursorTracker *self)
+{
+  /* (JS) Best (?) that can be assumed since XFixes doesn't provide a way of
+     detecting if the system mouse cursor is showing or not.
+
+     On wayland we start with the cursor showing
+  */
+  self->is_showing = TRUE;
+}
+
+static void
+meta_cursor_tracker_finalize (GObject *object)
+{
+  MetaCursorTracker *self = META_CURSOR_TRACKER (object);
+
+  if (self->sprite)
+    cogl_object_unref (self->sprite);
+  if (self->root_cursor)
+    cogl_object_unref (self->root_cursor);
+  if (self->default_cursor)
+    cogl_object_unref (self->default_cursor);
+  if (self->pipeline)
+    cogl_object_unref (self->pipeline);
+
+  G_OBJECT_CLASS (meta_cursor_tracker_parent_class)->finalize (object);
+}
+
+static void
+meta_cursor_tracker_class_init (MetaCursorTrackerClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = meta_cursor_tracker_finalize;
+
+  signals[CURSOR_CHANGED] = g_signal_new ("cursor-changed",
+                                          G_TYPE_FROM_CLASS (klass),
+                                          G_SIGNAL_RUN_LAST,
+                                          0,
+                                          NULL, NULL, NULL,
+                                          G_TYPE_NONE, 0);
+}
+
+#ifdef HAVE_WAYLAND
+static MetaCursorTracker *
+make_wayland_cursor_tracker (MetaScreen *screen)
+{
+  MetaWaylandCompositor *compositor;
+  CoglContext *ctx;
+  MetaCursorTracker *self = g_object_new (META_TYPE_CURSOR_TRACKER, NULL);
+  self->screen = screen;
+
+  ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
+  self->pipeline = cogl_pipeline_new (ctx);
+
+  compositor = meta_wayland_compositor_get_default ();
+  compositor->seat->cursor_tracker = self;
+
+  return self;
+}
+#endif
+
+static MetaCursorTracker *
+make_x11_cursor_tracker (MetaScreen *screen)
+{
+  MetaCursorTracker *self = g_object_new (META_TYPE_CURSOR_TRACKER, NULL);
+  self->screen = screen;
+
+  XFixesSelectCursorInput (screen->display->xdisplay,
+                           screen->xroot,
+                           XFixesDisplayCursorNotifyMask);
+
+  return self;
+}
+
+/**
+ * meta_cursor_tracker_get_for_screen:
+ * @screen: the #MetaScreen
+ *
+ * Retrieves the cursor tracker object for @screen.
+ *
+ * Returns: (transfer none):
+ */
+MetaCursorTracker *
+meta_cursor_tracker_get_for_screen (MetaScreen *screen)
+{
+  MetaCursorTracker *self;
+
+  if (screen->cursor_tracker)
+    return screen->cursor_tracker;
+
+#ifdef HAVE_WAYLAND
+  if (meta_is_wayland_compositor ())
+    self = make_wayland_cursor_tracker (screen);
+  else
+#endif
+    self = make_x11_cursor_tracker (screen);
+
+  screen->cursor_tracker = self;
+  return self;
+}
+
+gboolean
+meta_cursor_tracker_handle_xevent (MetaCursorTracker *tracker,
+                                   XEvent            *xevent)
+{
+  XFixesCursorNotifyEvent *notify_event;
+
+  if (meta_is_wayland_compositor ())
+    return FALSE;
+
+  if (xevent->xany.type != tracker->screen->display->xfixes_event_base + XFixesCursorNotify)
+    return FALSE;
+
+  notify_event = (XFixesCursorNotifyEvent *)xevent;
+  if (notify_event->subtype != XFixesDisplayCursorNotify)
+    return FALSE;
+
+  g_clear_pointer (&tracker->sprite, cogl_object_unref);
+  g_signal_emit (tracker, signals[CURSOR_CHANGED], 0);
+
+  return TRUE;
+}
+
+static void
+ensure_xfixes_cursor (MetaCursorTracker *tracker)
+{
+  XFixesCursorImage *cursor_image;
+  CoglTexture2D *sprite;
+  guint8 *cursor_data;
+  gboolean free_cursor_data;
+  CoglContext *ctx;
+
+  if (tracker->sprite)
+    return;
+
+  cursor_image = XFixesGetCursorImage (tracker->screen->display->xdisplay);
+  if (!cursor_image)
+    return;
+
+  /* Like all X APIs, XFixesGetCursorImage() returns arrays of 32-bit
+   * quantities as arrays of long; we need to convert on 64 bit */
+  if (sizeof(long) == 4)
+    {
+      cursor_data = (guint8 *)cursor_image->pixels;
+      free_cursor_data = FALSE;
+    }
+  else
+    {
+      int i, j;
+      guint32 *cursor_words;
+      gulong *p;
+      guint32 *q;
+
+      cursor_words = g_new (guint32, cursor_image->width * cursor_image->height);
+      cursor_data = (guint8 *)cursor_words;
+
+      p = cursor_image->pixels;
+      q = cursor_words;
+      for (j = 0; j < cursor_image->height; j++)
+        for (i = 0; i < cursor_image->width; i++)
+          *(q++) = *(p++);
+
+      free_cursor_data = TRUE;
+    }
+
+  ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
+  sprite = cogl_texture_2d_new_from_data (ctx,
+                                          cursor_image->width,
+                                          cursor_image->height,
+                                          CLUTTER_CAIRO_FORMAT_ARGB32,
+                                          COGL_PIXEL_FORMAT_ANY,
+                                          cursor_image->width * 4, /* stride */
+                                          cursor_data,
+                                          NULL);
+
+  if (free_cursor_data)
+    g_free (cursor_data);
+
+  if (sprite != NULL)
+    {
+      tracker->sprite = sprite;
+      tracker->hot_x = cursor_image->xhot;
+      tracker->hot_y = cursor_image->yhot;
+    }
+  XFree (cursor_image);
+}
+
+/**
+ * meta_cursor_tracker_get_sprite:
+ *
+ * Returns: (transfer none):
+ */
+CoglTexture *
+meta_cursor_tracker_get_sprite (MetaCursorTracker *tracker)
+{
+  g_return_val_if_fail (META_IS_CURSOR_TRACKER (tracker), NULL);
+
+  if (!meta_is_wayland_compositor ())
+    ensure_xfixes_cursor (tracker);
+
+  return COGL_TEXTURE (tracker->sprite);
+}
+
+/**
+ * meta_cursor_tracker_get_hot:
+ * @tracker:
+ * @x: (out):
+ * @y: (out):
+ *
+ */
+void
+meta_cursor_tracker_get_hot (MetaCursorTracker *tracker,
+                             int               *x,
+                             int               *y)
+{
+  g_return_if_fail (META_IS_CURSOR_TRACKER (tracker));
+
+  if (!meta_is_wayland_compositor ())
+    ensure_xfixes_cursor (tracker);
+
+  if (x)
+    *x = tracker->hot_x;
+  if (y)
+    *y = tracker->hot_y;
+}
+
+static void
+ensure_wayland_cursor (MetaCursorTracker *tracker)
+{
+  CoglBitmap *bitmap;
+  char *filename;
+
+  if (tracker->default_cursor)
+    return;
+
+  filename = g_build_filename (MUTTER_PKGDATADIR,
+                               "cursors/left_ptr.png",
+                               NULL);
+
+  bitmap = cogl_bitmap_new_from_file (filename, NULL);
+  tracker->default_cursor = cogl_texture_2d_new_from_bitmap (bitmap,
+                                                             COGL_PIXEL_FORMAT_ANY,
+                                                             NULL);
+
+  cogl_object_unref (bitmap);
+  g_free (filename);
+}
+
+void
+meta_cursor_tracker_set_root_cursor (MetaCursorTracker *tracker,
+                                     MetaCursor         cursor)
+{
+  Cursor xcursor;
+  MetaDisplay *display = tracker->screen->display;
+
+  /* First create a cursor for X11 applications that don't specify their own */
+  xcursor = meta_display_create_x_cursor (display, cursor);
+
+  XDefineCursor (display->xdisplay, tracker->screen->xroot, xcursor);
+  XFlush (display->xdisplay);
+  XFreeCursor (display->xdisplay, xcursor);
+
+  /* Now update the real root cursor */
+  if (meta_is_wayland_compositor ())
+    {
+      /* FIXME! We need to load all the other cursors too */
+      ensure_wayland_cursor (tracker);
+
+      g_clear_pointer (&tracker->root_cursor, cogl_object_unref);
+      tracker->root_cursor = cogl_object_ref (tracker->default_cursor);
+      tracker->root_hot_x = META_WAYLAND_DEFAULT_CURSOR_HOTSPOT_X;
+      tracker->root_hot_y = META_WAYLAND_DEFAULT_CURSOR_HOTSPOT_Y;
+    }
+}
+
+void
+meta_cursor_tracker_revert_root (MetaCursorTracker *tracker)
+{
+  meta_cursor_tracker_set_sprite (tracker,
+                                  tracker->root_cursor,
+                                  tracker->root_hot_x,
+                                  tracker->root_hot_y);
+}
+
+void
+meta_cursor_tracker_set_sprite (MetaCursorTracker *tracker,
+                                CoglTexture2D     *sprite,
+                                int                hot_x,
+                                int                hot_y)
+{
+  g_assert (meta_is_wayland_compositor ());
+
+  g_clear_pointer (&tracker->sprite, cogl_object_unref);
+
+  if (sprite)
+    {
+      tracker->sprite = cogl_object_ref (sprite);
+      tracker->hot_x = hot_x;
+      tracker->hot_y = hot_y;
+      cogl_pipeline_set_layer_texture (tracker->pipeline, 0, COGL_TEXTURE (tracker->sprite));
+    }
+  else
+    cogl_pipeline_set_layer_texture (tracker->pipeline, 0, NULL);
+
+  g_signal_emit (tracker, signals[CURSOR_CHANGED], 0);
+
+  meta_cursor_tracker_update_position (tracker, tracker->current_x, tracker->current_y);
+}
+
+void
+meta_cursor_tracker_update_position (MetaCursorTracker *tracker,
+                                     int                new_x,
+                                     int                new_y)
+{
+  g_assert (meta_is_wayland_compositor ());
+
+  tracker->current_x = new_x;
+  tracker->current_y = new_y;
+  tracker->current_rect.x = tracker->current_x - tracker->hot_x;
+  tracker->current_rect.y = tracker->current_y - tracker->hot_y;
+
+  if (tracker->sprite)
+    {
+      tracker->current_rect.width = cogl_texture_get_width (COGL_TEXTURE (tracker->sprite));
+      tracker->current_rect.height = cogl_texture_get_height (COGL_TEXTURE (tracker->sprite));
+    }
+  else
+    {
+      tracker->current_rect.width = 0;
+      tracker->current_rect.height = 0;
+    }
+}
+
+void
+meta_cursor_tracker_paint (MetaCursorTracker *tracker)
+{
+  g_assert (meta_is_wayland_compositor ());
+
+  if (tracker->sprite == NULL)
+    return;
+
+  /* FIXME: try to use a DRM cursor when possible */
+  cogl_framebuffer_draw_rectangle (cogl_get_draw_framebuffer (),
+                                   tracker->pipeline,
+                                   tracker->current_rect.x,
+                                   tracker->current_rect.y,
+                                   tracker->current_rect.x +
+                                   tracker->current_rect.width,
+                                   tracker->current_rect.y +
+                                   tracker->current_rect.height);
+
+  tracker->previous_rect = tracker->current_rect;
+  tracker->previous_is_valid = TRUE;
+}
+
+void
+meta_cursor_tracker_queue_redraw (MetaCursorTracker *tracker,
+                                  ClutterActor      *stage)
+{
+  g_assert (meta_is_wayland_compositor ());
+
+  if (tracker->previous_is_valid)
+    {
+      clutter_actor_queue_redraw_with_clip (stage, &tracker->previous_rect);
+      tracker->previous_is_valid = FALSE;
+    }
+
+  if (tracker->sprite == NULL)
+    return;
+
+  clutter_actor_queue_redraw_with_clip (stage, &tracker->current_rect);
+}
--- a/src/core/meta-idle-monitor-private.h
+++ b/src/core/meta-idle-monitor-private.h
@ -0,0 +1,31 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* 
+ * Copyright 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.
+ *
+ * Adapted from gnome-session/gnome-session/gs-idle-monitor.c and
+ *         from gnome-desktop/libgnome-desktop/gnome-idle-monitor.c
+ */
+
+#include <meta/meta-idle-monitor.h>
+
+void meta_idle_monitor_handle_xevent_all (XEvent *xevent);
+
+void meta_idle_monitor_reset_idletime (MetaIdleMonitor *monitor);
+
+void meta_idle_monitor_init_dbus (void);
--- a/src/core/meta-idle-monitor.c
+++ b/src/core/meta-idle-monitor.c
@ -0,0 +1,965 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* 
+ * Copyright 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.
+ *
+ * Adapted from gnome-session/gnome-session/gs-idle-monitor.c and
+ *         from gnome-desktop/libgnome-desktop/gnome-idle-monitor.c
+ */
+
+/**
+ * SECTION:idle-monitor
+ * @title: MetaIdleMonitor
+ * @short_description: Mutter idle counter (similar to X's IDLETIME)
+ */
+
+#include "config.h"
+
+#include <string.h>
+#include <clutter/clutter.h>
+#include <X11/Xlib.h>
+#include <X11/extensions/sync.h>
+
+#include <meta/util.h>
+#include <meta/main.h>
+#include <meta/meta-idle-monitor.h>
+#include "display-private.h"
+#include "meta-idle-monitor-private.h"
+#include "meta-dbus-idle-monitor.h"
+
+G_STATIC_ASSERT(sizeof(unsigned long) == sizeof(gpointer));
+
+struct _MetaIdleMonitor
+{
+  GObject parent_instance;
+
+  GHashTable  *watches;
+  GHashTable  *alarms;
+  int          device_id;
+
+  /* X11 implementation */
+  Display     *display;
+  int          sync_event_base;
+  XSyncCounter counter;
+  XSyncAlarm   user_active_alarm;
+
+  /* Wayland implementation */
+  guint64      last_event_time;
+};
+
+struct _MetaIdleMonitorClass
+{
+  GObjectClass parent_class;
+};
+
+typedef struct
+{
+  MetaIdleMonitor          *monitor;
+  guint	                    id;
+  MetaIdleMonitorWatchFunc  callback;
+  gpointer		    user_data;
+  GDestroyNotify            notify;
+  guint64                   timeout_msec;
+
+  /* x11 */
+  XSyncAlarm	            xalarm;
+
+  /* wayland */
+  GSource                  *timeout_source;
+} MetaIdleMonitorWatch;
+
+enum
+{
+  PROP_0,
+  PROP_DEVICE_ID,
+  PROP_LAST,
+};
+
+static GParamSpec *obj_props[PROP_LAST];
+
+G_DEFINE_TYPE (MetaIdleMonitor, meta_idle_monitor, G_TYPE_OBJECT)
+
+static MetaIdleMonitor *device_monitors[256];
+static int              device_id_max;
+
+static gint64
+_xsyncvalue_to_int64 (XSyncValue value)
+{
+  return ((guint64) XSyncValueHigh32 (value)) << 32
+    | (guint64) XSyncValueLow32 (value);
+}
+
+#define GUINT64_TO_XSYNCVALUE(value, ret) XSyncIntsToValue (ret, (value) & 0xFFFFFFFF, ((guint64)(value)) >> 32)
+
+static void
+fire_watch (MetaIdleMonitorWatch *watch)
+{
+  MetaIdleMonitor *monitor;
+  guint id;
+  gboolean is_user_active_watch;
+
+  monitor = watch->monitor;
+  g_object_ref (monitor);
+
+  id = watch->id;
+  is_user_active_watch = (watch->timeout_msec == 0);
+
+  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);
+}
+
+static XSyncAlarm
+_xsync_alarm_set (MetaIdleMonitor	*monitor,
+		  XSyncTestType          test_type,
+		  guint64                interval,
+		  gboolean               want_events)
+{
+  XSyncAlarmAttributes attr;
+  XSyncValue	     delta;
+  guint		     flags;
+
+  flags = XSyncCACounter | XSyncCAValueType | XSyncCATestType |
+    XSyncCAValue | XSyncCADelta | XSyncCAEvents;
+
+  XSyncIntToValue (&delta, 0);
+  attr.trigger.counter = monitor->counter;
+  attr.trigger.value_type = XSyncAbsolute;
+  attr.delta = delta;
+  attr.events = want_events;
+
+  GUINT64_TO_XSYNCVALUE (interval, &attr.trigger.wait_value);
+  attr.trigger.test_type = test_type;
+  return XSyncCreateAlarm (monitor->display, flags, &attr);
+}
+
+static void
+ensure_alarm_rescheduled (Display    *dpy,
+			  XSyncAlarm  alarm)
+{
+  XSyncAlarmAttributes attr;
+
+  /* Some versions of Xorg have an issue where alarms aren't
+   * always rescheduled. Calling XSyncChangeAlarm, even
+   * without any attributes, will reschedule the alarm. */
+  XSyncChangeAlarm (dpy, alarm, 0, &attr);
+}
+
+static void
+set_alarm_enabled (Display    *dpy,
+		   XSyncAlarm  alarm,
+		   gboolean    enabled)
+{
+  XSyncAlarmAttributes attr;
+  attr.events = enabled;
+  XSyncChangeAlarm (dpy, alarm, XSyncCAEvents, &attr);
+}
+
+static void
+check_x11_watch (gpointer data,
+                 gpointer user_data)
+{
+  MetaIdleMonitorWatch *watch = data;
+  XSyncAlarm alarm = (XSyncAlarm) user_data;
+
+  if (watch->xalarm != alarm)
+    return;
+
+  fire_watch (watch);
+}
+
+static void
+meta_idle_monitor_handle_xevent (MetaIdleMonitor       *monitor,
+                                 XSyncAlarmNotifyEvent *alarm_event)
+{
+  XSyncAlarm alarm;
+  GList *watches;
+  gboolean has_alarm;
+
+  if (alarm_event->state != XSyncAlarmActive)
+    return;
+
+  alarm = alarm_event->alarm;
+
+  has_alarm = FALSE;
+
+  if (alarm == monitor->user_active_alarm)
+    {
+      set_alarm_enabled (monitor->display,
+                         alarm,
+                         FALSE);
+      has_alarm = TRUE;
+    }
+  else if (g_hash_table_contains (monitor->alarms, (gpointer) alarm))
+    {
+      ensure_alarm_rescheduled (monitor->display,
+                                alarm);
+      has_alarm = TRUE;
+    }
+
+  if (has_alarm)
+    {
+      watches = g_hash_table_get_values (monitor->watches);
+
+      g_list_foreach (watches, check_x11_watch, (gpointer) alarm);
+      g_list_free (watches);
+    }
+}
+
+void
+meta_idle_monitor_handle_xevent_all (XEvent *xevent)
+{
+  int i;
+
+  for (i = 0; i < device_id_max; i++)
+    if (device_monitors[i])
+      meta_idle_monitor_handle_xevent (device_monitors[i], (XSyncAlarmNotifyEvent*)xevent);
+}
+
+static char *
+counter_name_for_device (int device_id)
+{
+  if (device_id > 0)
+    return g_strdup_printf ("DEVICEIDLETIME %d", device_id);
+
+  return g_strdup ("IDLETIME");
+}
+
+static XSyncCounter
+find_idletime_counter (MetaIdleMonitor *monitor)
+{
+  int		      i;
+  int		      ncounters;
+  XSyncSystemCounter *counters;
+  XSyncCounter        counter = None;
+  char               *counter_name;
+
+  counter_name = counter_name_for_device (monitor->device_id);
+  counters = XSyncListSystemCounters (monitor->display, &ncounters);
+  for (i = 0; i < ncounters; i++)
+    {
+      if (counters[i].name != NULL && strcmp (counters[i].name, counter_name) == 0)
+        {
+          counter = counters[i].counter;
+          break;
+        }
+    }
+  XSyncFreeSystemCounterList (counters);
+  g_free (counter_name);
+
+  return counter;
+}
+
+static guint32
+get_next_watch_serial (void)
+{
+  static guint32 serial = 0;
+  g_atomic_int_inc (&serial);
+  return serial;
+}
+
+static void
+idle_monitor_watch_free (MetaIdleMonitorWatch *watch)
+{
+  MetaIdleMonitor *monitor;
+
+  if (watch == NULL)
+    return;
+
+  monitor = watch->monitor;
+
+  if (watch->notify != NULL)
+    watch->notify (watch->user_data);
+
+  if (watch->xalarm != monitor->user_active_alarm &&
+      watch->xalarm != None)
+    {
+      XSyncDestroyAlarm (monitor->display, watch->xalarm);
+      g_hash_table_remove (monitor->alarms, (gpointer) watch->xalarm);
+    }
+
+  if (watch->timeout_source != NULL)
+    g_source_destroy (watch->timeout_source);
+
+  g_slice_free (MetaIdleMonitorWatch, watch);
+}
+
+static void
+init_xsync (MetaIdleMonitor *monitor)
+{
+  monitor->counter = find_idletime_counter (monitor);
+  /* IDLETIME counter not found? */
+  if (monitor->counter == None)
+    {
+      meta_warning ("IDLETIME counter not found\n");
+      return;
+    }
+
+  monitor->user_active_alarm = _xsync_alarm_set (monitor, XSyncNegativeTransition, 1, FALSE);
+}
+
+static void
+meta_idle_monitor_dispose (GObject *object)
+{
+  MetaIdleMonitor *monitor;
+
+  monitor = META_IDLE_MONITOR (object);
+
+  g_clear_pointer (&monitor->watches, g_hash_table_destroy);
+  g_clear_pointer (&monitor->alarms, g_hash_table_destroy);
+
+  if (monitor->user_active_alarm != None)
+    {
+      XSyncDestroyAlarm (monitor->display, monitor->user_active_alarm);
+      monitor->user_active_alarm = None;
+    }
+
+  G_OBJECT_CLASS (meta_idle_monitor_parent_class)->dispose (object);
+}
+
+static void
+meta_idle_monitor_get_property (GObject    *object,
+                                guint       prop_id,
+                                GValue     *value,
+                                GParamSpec *pspec)
+{
+  MetaIdleMonitor *monitor = META_IDLE_MONITOR (object);
+
+  switch (prop_id)
+    {
+    case PROP_DEVICE_ID:
+      g_value_set_int (value, monitor->device_id);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+meta_idle_monitor_set_property (GObject      *object,
+                                guint         prop_id,
+                                const GValue *value,
+                                GParamSpec   *pspec)
+{
+  MetaIdleMonitor *monitor = META_IDLE_MONITOR (object);
+  switch (prop_id)
+    {
+    case PROP_DEVICE_ID:
+      monitor->device_id = g_value_get_int (value);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+meta_idle_monitor_constructed (GObject *object)
+{
+  MetaIdleMonitor *monitor = META_IDLE_MONITOR (object);
+
+  if (!meta_is_wayland_compositor ())
+    {
+      monitor->display = meta_get_display ()->xdisplay;
+      init_xsync (monitor);
+    }
+}
+
+static void
+meta_idle_monitor_class_init (MetaIdleMonitorClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->dispose = meta_idle_monitor_dispose;
+  object_class->constructed = meta_idle_monitor_constructed;
+  object_class->get_property = meta_idle_monitor_get_property;
+  object_class->set_property = meta_idle_monitor_set_property;
+
+  /**
+   * MetaIdleMonitor:device_id:
+   *
+   * The device to listen to idletime on.
+   */
+  obj_props[PROP_DEVICE_ID] =
+    g_param_spec_int ("device-id",
+                      "Device ID",
+                      "The device to listen to idletime on",
+                      0, 255, 0,
+                      G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
+  g_object_class_install_property (object_class, PROP_DEVICE_ID, obj_props[PROP_DEVICE_ID]);
+}
+
+static void
+meta_idle_monitor_init (MetaIdleMonitor *monitor)
+{
+  monitor->watches = g_hash_table_new_full (NULL,
+                                                  NULL,
+                                                  NULL,
+                                                  (GDestroyNotify)idle_monitor_watch_free);
+
+  monitor->alarms = g_hash_table_new (NULL, NULL);
+}
+
+static void
+ensure_device_monitor (int device_id)
+{
+  if (device_monitors[device_id])
+    return;
+
+  device_monitors[device_id] = g_object_new (META_TYPE_IDLE_MONITOR, "device-id", device_id, NULL);
+  device_id_max = MAX (device_id_max, device_id);
+}
+
+/**
+ * meta_idle_monitor_get_core:
+ *
+ * Returns: (transfer none): the #MetaIdleMonitor that tracks the server-global
+ * idletime for all devices. To track device-specific idletime,
+ * use meta_idle_monitor_get_for_device().
+ */
+MetaIdleMonitor *
+meta_idle_monitor_get_core (void)
+{
+  ensure_device_monitor (0);
+  return device_monitors[0];
+}
+
+/**
+ * meta_idle_monitor_get_for_device:
+ * @device_id: the device to get the idle time for.
+ *
+ * Returns: (transfer none): a new #MetaIdleMonitor that tracks the
+ * device-specific idletime for @device. To track server-global idletime
+ * for all devices, use meta_idle_monitor_get_core().
+ */
+MetaIdleMonitor *
+meta_idle_monitor_get_for_device (int device_id)
+{
+  g_return_val_if_fail (device_id > 0 && device_id < 256, NULL);
+
+  ensure_device_monitor (device_id);
+  return device_monitors[device_id];
+}
+
+static gboolean
+wayland_dispatch_timeout (GSource     *source,
+                          GSourceFunc  callback,
+                          gpointer     user_data)
+{
+  MetaIdleMonitorWatch *watch = user_data;
+
+  fire_watch (watch);
+  g_source_set_ready_time (watch->timeout_source, -1);
+  return TRUE;
+}
+
+static GSourceFuncs wayland_source_funcs = {
+  NULL, /* prepare */
+  NULL, /* check */
+  wayland_dispatch_timeout,
+  NULL, /* finalize */
+};
+
+static MetaIdleMonitorWatch *
+make_watch (MetaIdleMonitor           *monitor,
+            guint64                    timeout_msec,
+	    MetaIdleMonitorWatchFunc   callback,
+	    gpointer                   user_data,
+	    GDestroyNotify             notify)
+{
+  MetaIdleMonitorWatch *watch;
+
+  watch = g_slice_new0 (MetaIdleMonitorWatch);
+  watch->monitor = monitor;
+  watch->id = get_next_watch_serial ();
+  watch->callback = callback;
+  watch->user_data = user_data;
+  watch->notify = notify;
+  watch->timeout_msec = timeout_msec;
+
+  if (meta_is_wayland_compositor ())
+    {
+      if (timeout_msec != 0)
+        {
+          GSource *source = g_source_new (&wayland_source_funcs, sizeof (GSource));
+
+          g_source_set_callback (source, NULL, watch, NULL);
+          g_source_set_ready_time (source, monitor->last_event_time + timeout_msec * 1000);
+          g_source_attach (source, NULL);
+          g_source_unref (source);
+
+          watch->timeout_source = source;
+        }
+    }
+  else
+    {
+      if (timeout_msec != 0)
+        {
+          watch->xalarm = _xsync_alarm_set (monitor, XSyncPositiveTransition, timeout_msec, TRUE);
+
+          g_hash_table_add (monitor->alarms, (gpointer) watch->xalarm);
+        }
+      else
+        {
+          watch->xalarm = monitor->user_active_alarm;
+
+          set_alarm_enabled (monitor->display, monitor->user_active_alarm, TRUE);
+        }
+    }
+
+  g_hash_table_insert (monitor->watches,
+                       GUINT_TO_POINTER (watch->id),
+                       watch);
+  return watch;
+}
+
+/**
+ * meta_idle_monitor_add_idle_watch:
+ * @monitor: A #MetaIdleMonitor
+ * @interval_msec: The idletime interval, in milliseconds
+ * @callback: (allow-none): The callback to call when the user has
+ *     accumulated @interval_msec milliseconds of idle time.
+ * @user_data: (allow-none): The user data to pass to the callback
+ * @notify: A #GDestroyNotify
+ *
+ * Returns: a watch id
+ *
+ * Adds a watch for a specific idle time. The callback will be called
+ * when the user has accumulated @interval_msec milliseconds of idle time.
+ * This function will return an ID that can either be passed to
+ * meta_idle_monitor_remove_watch(), or can be used to tell idle time
+ * watches apart if you have more than one.
+ *
+ * Also note that this function will only care about positive transitions
+ * (user's idle time exceeding a certain time). If you want to know about
+ * when the user has become active, use
+ * meta_idle_monitor_add_user_active_watch().
+ */
+guint
+meta_idle_monitor_add_idle_watch (MetaIdleMonitor	       *monitor,
+                                  guint64	                interval_msec,
+                                  MetaIdleMonitorWatchFunc      callback,
+                                  gpointer			user_data,
+                                  GDestroyNotify		notify)
+{
+  MetaIdleMonitorWatch *watch;
+
+  g_return_val_if_fail (META_IS_IDLE_MONITOR (monitor), 0);
+  g_return_val_if_fail (interval_msec > 0, 0);
+
+  watch = make_watch (monitor,
+                      interval_msec,
+                      callback,
+                      user_data,
+                      notify);
+
+  return watch->id;
+}
+
+/**
+ * meta_idle_monitor_add_user_active_watch:
+ * @monitor: A #MetaIdleMonitor
+ * @callback: (allow-none): The callback to call when the user is
+ *     active again.
+ * @user_data: (allow-none): The user data to pass to the callback
+ * @notify: A #GDestroyNotify
+ *
+ * Returns: a watch id
+ *
+ * Add a one-time watch to know when the user is active again.
+ * Note that this watch is one-time and will de-activate after the
+ * function is called, for efficiency purposes. It's most convenient
+ * to call this when an idle watch, as added by
+ * meta_idle_monitor_add_idle_watch(), has triggered.
+ */
+guint
+meta_idle_monitor_add_user_active_watch (MetaIdleMonitor          *monitor,
+                                         MetaIdleMonitorWatchFunc  callback,
+                                         gpointer		   user_data,
+                                         GDestroyNotify	           notify)
+{
+  MetaIdleMonitorWatch *watch;
+
+  g_return_val_if_fail (META_IS_IDLE_MONITOR (monitor), 0);
+
+  watch = make_watch (monitor,
+                      0,
+                      callback,
+                      user_data,
+                      notify);
+
+  return watch->id;
+}
+
+/**
+ * meta_idle_monitor_remove_watch:
+ * @monitor: A #MetaIdleMonitor
+ * @id: A watch ID
+ *
+ * Removes an idle time watcher, previously added by
+ * meta_idle_monitor_add_idle_watch() or
+ * meta_idle_monitor_add_user_active_watch().
+ */
+void
+meta_idle_monitor_remove_watch (MetaIdleMonitor *monitor,
+                                guint	         id)
+{
+  g_return_if_fail (META_IS_IDLE_MONITOR (monitor));
+
+  g_hash_table_remove (monitor->watches,
+                       GUINT_TO_POINTER (id));
+}
+
+/**
+ * meta_idle_monitor_get_idletime:
+ * @monitor: A #MetaIdleMonitor
+ *
+ * Returns: The current idle time, in milliseconds, or -1 for not supported
+ */
+gint64
+meta_idle_monitor_get_idletime (MetaIdleMonitor *monitor)
+{
+  XSyncValue value;
+
+  if (meta_is_wayland_compositor ())
+    {
+      return (g_get_monotonic_time () - monitor->last_event_time) / 1000;
+    }
+  else
+    {
+      if (!XSyncQueryCounter (monitor->display, monitor->counter, &value))
+        return -1;
+
+      return _xsyncvalue_to_int64 (value);
+    }
+}
+
+typedef struct {
+  MetaIdleMonitor *monitor;
+  GList *fired_watches;
+} CheckWaylandClosure;
+
+static gboolean
+check_wayland_watch (gpointer key,
+                     gpointer value,
+                     gpointer user_data)
+{
+  MetaIdleMonitorWatch *watch = value;
+  CheckWaylandClosure *closure = user_data;
+  gboolean steal;
+
+  if (watch->timeout_msec == 0)
+    {
+      closure->fired_watches = g_list_prepend (closure->fired_watches, watch);
+      steal = TRUE;
+    }
+  else
+    {
+      g_source_set_ready_time (watch->timeout_source,
+                               closure->monitor->last_event_time +
+                               watch->timeout_msec * 1000);
+      steal = FALSE;
+    }
+
+  return steal;
+}
+
+static void
+fire_wayland_watch (gpointer watch,
+                    gpointer data)
+{
+  fire_watch (watch);
+}
+
+void
+meta_idle_monitor_reset_idletime (MetaIdleMonitor *monitor)
+{
+  CheckWaylandClosure closure;
+
+  monitor->last_event_time = g_get_monotonic_time ();
+
+  closure.monitor = monitor;
+  closure.fired_watches = NULL;
+  g_hash_table_foreach_steal (monitor->watches, check_wayland_watch, &closure);
+
+  g_list_foreach (closure.fired_watches, fire_wayland_watch, NULL);
+  g_list_free (closure.fired_watches);
+}
+
+static gboolean
+handle_get_idletime (MetaDBusIdleMonitor   *skeleton,
+                     GDBusMethodInvocation *invocation,
+                     MetaIdleMonitor       *monitor)
+{
+  guint64 idletime;
+
+  idletime = meta_idle_monitor_get_idletime (monitor);
+  meta_dbus_idle_monitor_complete_get_idletime (skeleton, invocation, idletime);
+
+  return TRUE;
+}
+
+typedef struct {
+  MetaDBusIdleMonitor *dbus_monitor;
+  MetaIdleMonitor *monitor;
+  char *dbus_name;
+  guint watch_id;
+  guint name_watcher_id;
+} DBusWatch;
+
+static void
+destroy_dbus_watch (gpointer data)
+{
+  DBusWatch *watch = data;
+
+  g_object_unref (watch->dbus_monitor);
+  g_object_unref (watch->monitor);
+  g_free (watch->dbus_name);
+  g_bus_unwatch_name (watch->name_watcher_id);
+
+  g_slice_free (DBusWatch, watch);
+}
+
+static void
+dbus_idle_callback (MetaIdleMonitor *monitor,
+                    guint            watch_id,
+                    gpointer         user_data)
+{
+  DBusWatch *watch = user_data;
+  GDBusInterfaceSkeleton *skeleton = G_DBUS_INTERFACE_SKELETON (watch->dbus_monitor);
+
+  g_dbus_connection_emit_signal (g_dbus_interface_skeleton_get_connection (skeleton),
+                                 watch->dbus_name,
+                                 g_dbus_interface_skeleton_get_object_path (skeleton),
+                                 "org.gnome.Mutter.IdleMonitor",
+                                 "WatchFired",
+                                 g_variant_new ("(u)", watch_id),
+                                 NULL);
+}
+
+static void
+name_vanished_callback (GDBusConnection *connection,
+                        const char      *name,
+                        gpointer         user_data)
+{
+  DBusWatch *watch = user_data;
+
+  meta_idle_monitor_remove_watch (watch->monitor, watch->watch_id);
+}
+
+static DBusWatch *
+make_dbus_watch (MetaDBusIdleMonitor   *skeleton,
+                 GDBusMethodInvocation *invocation,
+                 MetaIdleMonitor       *monitor)
+{
+  DBusWatch *watch;
+
+  watch = g_slice_new (DBusWatch);
+  watch->dbus_monitor = g_object_ref (skeleton);
+  watch->monitor = g_object_ref (monitor);
+  watch->dbus_name = g_strdup (g_dbus_method_invocation_get_sender (invocation));
+  watch->name_watcher_id = g_bus_watch_name_on_connection (g_dbus_method_invocation_get_connection (invocation),
+                                                           watch->dbus_name,
+                                                           G_BUS_NAME_WATCHER_FLAGS_NONE,
+                                                           NULL, /* appeared */
+                                                           name_vanished_callback,
+                                                           watch, NULL);
+
+  return watch;
+}
+
+static gboolean
+handle_add_idle_watch (MetaDBusIdleMonitor   *skeleton,
+                       GDBusMethodInvocation *invocation,
+                       guint64                interval,
+                       MetaIdleMonitor       *monitor)
+{
+  DBusWatch *watch;
+
+  watch = make_dbus_watch (skeleton, invocation, monitor);
+  watch->watch_id = meta_idle_monitor_add_idle_watch (monitor, interval,
+                                                      dbus_idle_callback, watch, destroy_dbus_watch);
+
+  meta_dbus_idle_monitor_complete_add_idle_watch (skeleton, invocation, watch->watch_id);
+
+  return TRUE;
+}
+
+static gboolean
+handle_add_user_active_watch (MetaDBusIdleMonitor   *skeleton,
+                              GDBusMethodInvocation *invocation,
+                              MetaIdleMonitor       *monitor)
+{
+  DBusWatch *watch;
+
+  watch = make_dbus_watch (skeleton, invocation, monitor);
+  watch->watch_id = meta_idle_monitor_add_user_active_watch (monitor,
+                                                             dbus_idle_callback, watch,
+                                                             destroy_dbus_watch);
+
+  meta_dbus_idle_monitor_complete_add_user_active_watch (skeleton, invocation, watch->watch_id);
+
+  return TRUE;
+}
+
+static gboolean
+handle_remove_watch (MetaDBusIdleMonitor   *skeleton,
+                     GDBusMethodInvocation *invocation,
+                     guint                  id,
+                     MetaIdleMonitor       *monitor)
+{
+  meta_idle_monitor_remove_watch (monitor, id);
+  meta_dbus_idle_monitor_complete_remove_watch (skeleton, invocation);
+
+  return TRUE;
+}
+
+static void
+create_monitor_skeleton (GDBusObjectManagerServer *manager,
+                         MetaIdleMonitor          *monitor,
+                         const char               *path)
+{
+  MetaDBusIdleMonitor *skeleton;
+  MetaDBusObjectSkeleton *object;
+
+  skeleton = meta_dbus_idle_monitor_skeleton_new ();
+  g_signal_connect_object (skeleton, "handle-add-idle-watch",
+                           G_CALLBACK (handle_add_idle_watch), monitor, 0);
+  g_signal_connect_object (skeleton, "handle-add-user-active-watch",
+                           G_CALLBACK (handle_add_user_active_watch), monitor, 0);
+  g_signal_connect_object (skeleton, "handle-remove-watch",
+                           G_CALLBACK (handle_remove_watch), monitor, 0);
+  g_signal_connect_object (skeleton, "handle-get-idletime",
+                           G_CALLBACK (handle_get_idletime), monitor, 0);
+
+  object = meta_dbus_object_skeleton_new (path);
+  meta_dbus_object_skeleton_set_idle_monitor (object, skeleton);
+
+  g_dbus_object_manager_server_export (manager, G_DBUS_OBJECT_SKELETON (object));
+}
+
+static void
+on_device_added (ClutterDeviceManager     *device_manager,
+                 ClutterInputDevice       *device,
+                 GDBusObjectManagerServer *manager)
+{
+
+  MetaIdleMonitor *monitor;
+  int device_id;
+  char *path;
+
+  device_id = clutter_input_device_get_device_id (device);
+  monitor = meta_idle_monitor_get_for_device (device_id);
+  path = g_strdup_printf ("/org/gnome/Mutter/IdleMonitor/Device%d", device_id);
+
+  create_monitor_skeleton (manager, monitor, path);
+  g_free (path);
+}
+
+static void
+on_device_removed (ClutterDeviceManager     *device_manager,
+                   ClutterInputDevice       *device,
+                   GDBusObjectManagerServer *manager)
+{
+  int device_id;
+  char *path;
+
+  device_id = clutter_input_device_get_device_id (device);
+  path = g_strdup_printf ("/org/gnome/Mutter/IdleMonitor/Device%d", device_id);
+  g_dbus_object_manager_server_unexport (manager, path);
+  g_free (path);
+
+  g_clear_object (&device_monitors[device_id]);
+  if (device_id == device_id_max)
+    device_id_max--;
+}
+
+static void
+on_bus_acquired (GDBusConnection *connection,
+                 const char      *name,
+                 gpointer         user_data)
+{
+  GDBusObjectManagerServer *manager;
+  ClutterDeviceManager *device_manager;
+  MetaIdleMonitor *monitor;
+  GSList *devices, *iter;
+  char *path;
+
+  manager = g_dbus_object_manager_server_new ("/org/gnome/Mutter/IdleMonitor");
+
+  /* We never clear the core monitor, as that's supposed to cumulate idle times from
+     all devices */
+  monitor = meta_idle_monitor_get_core ();
+  path = g_strdup ("/org/gnome/Mutter/IdleMonitor/Core");
+  create_monitor_skeleton (manager, monitor, path);
+  g_free (path);
+
+  device_manager = clutter_device_manager_get_default ();
+  devices = clutter_device_manager_list_devices (device_manager);
+
+  for (iter = devices; iter; iter = iter->next)
+    on_device_added (device_manager, iter->data, manager);
+
+  g_signal_connect_object (device_manager, "device-added",
+                           G_CALLBACK (on_device_added), manager, 0);
+  g_signal_connect_object (device_manager, "device-removed",
+                           G_CALLBACK (on_device_removed), manager, 0);
+
+  g_dbus_object_manager_server_set_connection (manager, connection);
+}
+
+static void
+on_name_acquired (GDBusConnection *connection,
+                  const char      *name,
+                  gpointer         user_data)
+{
+  meta_verbose ("Acquired name %s\n", name);
+}
+
+static void
+on_name_lost (GDBusConnection *connection,
+              const char      *name,
+              gpointer         user_data)
+{
+  meta_verbose ("Lost or failed to acquire name %s\n", name);
+}
+
+void
+meta_idle_monitor_init_dbus (void)
+{
+  static int dbus_name_id;
+
+  if (dbus_name_id > 0)
+    return;
+
+  dbus_name_id = g_bus_own_name (G_BUS_TYPE_SESSION,
+                                 "org.gnome.Mutter.IdleMonitor",
+                                 G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT |
+                                 (meta_get_replace_current_wm () ?
+                                  G_BUS_NAME_OWNER_FLAGS_REPLACE : 0),
+                                 on_bus_acquired,
+                                 on_name_acquired,
+                                 on_name_lost,
+                                 NULL, NULL);
+}
+
--- a/src/core/meta-xrandr-shared.h
+++ b/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
--- a/src/core/monitor-config.c
+++ b/src/core/monitor-config.c
--- a/src/core/monitor-private.h
+++ b/src/core/monitor-private.h
@ -0,0 +1,390 @@
+/* -*- 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;
+};
+
+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;
+
+  int width;
+  int height;
+  float refresh_rate;
+};
+
+/**
+ * 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);
+
+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_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);
+
+/* 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
--- a/src/core/monitor-xrandr.c
+++ b/src/core/monitor-xrandr.c
--- a/src/core/monitor.c
+++ b/src/core/monitor.c
--- a/src/core/mutter.c
+++ b/src/core/mutter.c
@ -46,8 +46,15 @@ print_version (const gchar    *option_name,
 }

 static gchar *plugin = "default";
+static gboolean opt_nested = FALSE;

 GOptionEntry mutter_options[] = {
+  {
+    "nested", 0, 0, G_OPTION_ARG_NONE,
+    &opt_nested,
+    N_("Run nested as an application for testing"),
+    NULL,
+  },
  {
    "version", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK,
    print_version,
@ -77,6 +84,8 @@ main (int argc, char **argv)
      exit (1);
    }

+  meta_set_is_wayland_compositor (opt_nested);
+
  if (plugin)
    meta_plugin_manager_load (plugin);

--- a/src/core/screen-private.h
+++ b/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);
@ -93,6 +83,7 @@ struct _MetaScreen
  MetaStack *stack;
  MetaStackTracker *stack_tracker;

+  MetaCursorTracker *cursor_tracker;
  MetaCursor current_cursor;

  Window flash_window;
@ -100,10 +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;
@ -231,10 +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);

@ -257,4 +245,14 @@ void     meta_screen_workspace_switched (MetaScreen         *screen,

 void meta_screen_set_active_workspace_hint (MetaScreen *screen);

+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
--- a/src/core/screen.c
+++ b/src/core/screen.c
@ -45,13 +45,11 @@
 #include <meta/compositor.h>
 #include "mutter-enum-types.h"
 #include "core.h"
+#include "meta-wayland-private.h"
+#include "meta-cursor-tracker-private.h"

 #include <X11/extensions/Xinerama.h>

-#ifdef HAVE_RANDR
-#include <X11/extensions/Xrandr.h>
-#endif
-
 #include <X11/Xatom.h>
 #include <locale.h>
 #include <string.h>
@ -76,6 +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,
@ -350,250 +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
@ -603,12 +447,13 @@ reload_monitor_infos (MetaScreen *screen)
 * should effectively be forwarded to events on the background actor,
 * providing that the scene graph is set up correctly.
 */
-static Window
-create_guard_window (Display *xdisplay, MetaScreen *screen)
+Window
+meta_screen_create_guard_window (Display *xdisplay, MetaScreen *screen)
 {
  XSetWindowAttributes attributes;
  Window guard_window;
  gulong create_serial;
+  MetaStackWindow stack_window;
  
  attributes.event_mask = NoEventMask;
  attributes.override_redirect = True;
@ -641,12 +486,14 @@ create_guard_window (Display *xdisplay, MetaScreen *screen)
    XISelectEvents (xdisplay, guard_window, &mask, 1);
  }

+  stack_window.any.type = META_WINDOW_CLIENT_TYPE_X11;
+  stack_window.x11.xwindow = guard_window;
  meta_stack_tracker_record_add (screen->stack_tracker,
-                                 guard_window,
+                                 &stack_window,
                                 create_serial);

  meta_stack_tracker_record_lower (screen->stack_tracker,
-                                   guard_window,
+                                   &stack_window,
                                   XNextRequest (xdisplay));
  XLowerWindow (xdisplay, guard_window);
  XMapWindow (xdisplay, guard_window);
@ -668,6 +515,7 @@ meta_screen_new (MetaDisplay *display,
  char buf[128];
  guint32 manager_timestamp;
  gulong current_workspace;
+  MetaMonitorManager *manager;
  
  replace_current_wm = meta_get_replace_current_wm ();
  
@ -826,8 +674,18 @@ meta_screen_new (MetaDisplay *display,
  screen->xscreen = ScreenOfDisplay (xdisplay, number);
  screen->xroot = xroot;
  screen->rect.x = screen->rect.y = 0;
-  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);
  screen->default_depth = DefaultDepthOfScreen (screen->xscreen);
@ -852,12 +710,9 @@ 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);
  meta_screen_set_cursor (screen, META_CURSOR_DEFAULT);

  /* Handle creating a no_focus_window for this screen */  
@ -941,7 +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;
 }

@ -1082,8 +937,8 @@ meta_screen_manage_all_windows (MetaScreen *screen)
  meta_display_grab (screen->display);

  if (screen->guard_window == None)
-    screen->guard_window = create_guard_window (screen->display->xdisplay,
-                                                screen);
+    screen->guard_window =
+      meta_screen_create_guard_window (screen->display->xdisplay, screen);

  windows = list_windows (screen);

@ -1613,29 +1468,18 @@ void
 meta_screen_set_cursor (MetaScreen *screen,
                        MetaCursor  cursor)
 {
-  Cursor xcursor;
-
  if (cursor == screen->current_cursor)
    return;

  screen->current_cursor = cursor;
-  
-  xcursor = meta_display_create_x_cursor (screen->display, cursor);
-  XDefineCursor (screen->display->xdisplay, screen->xroot, xcursor);
-  XFlush (screen->display->xdisplay);
-  XFreeCursor (screen->display->xdisplay, xcursor);
+  meta_cursor_tracker_set_root_cursor (screen->cursor_tracker, cursor);
 }

 void
 meta_screen_update_cursor (MetaScreen *screen)
 {
-  Cursor xcursor;
-
-  xcursor = meta_display_create_x_cursor (screen->display, 
-					  screen->current_cursor);
-  XDefineCursor (screen->display->xdisplay, screen->xroot, xcursor);
-  XFlush (screen->display->xdisplay);
-  XFreeCursor (screen->display->xdisplay, xcursor);
+  meta_cursor_tracker_set_root_cursor (screen->cursor_tracker,
+                                       screen->current_cursor);
 }

 void
@ -1898,12 +1742,15 @@ meta_screen_tile_preview_update_timeout (gpointer data)
    {
      Window xwindow;
      gulong create_serial;
+      MetaStackWindow stack_window;

      screen->tile_preview = meta_tile_preview_new (screen->number);
      xwindow = meta_tile_preview_get_xwindow (screen->tile_preview,
                                               &create_serial);
+      stack_window.any.type = META_WINDOW_CLIENT_TYPE_X11;
+      stack_window.x11.xwindow = xwindow;
      meta_stack_tracker_record_add (screen->stack_tracker,
-                                     xwindow,
+                                     &stack_window,
                                     create_serial);
    }

@ -2997,19 +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);
@ -3021,8 +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,
@ -3032,7 +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);
@ -3048,7 +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);
@ -3844,3 +3687,13 @@ meta_screen_get_monitor_in_fullscreen (MetaScreen  *screen,
  /* We use -1 as a flag to mean "not known yet" for notification purposes */
  return screen->monitor_infos[monitor].in_fullscreen == TRUE;
 }
+
+gboolean
+meta_screen_handle_xevent (MetaScreen *screen,
+                           XEvent     *xevent)
+{
+  if (meta_cursor_tracker_handle_xevent (screen->cursor_tracker, xevent))
+    return TRUE;
+
+  return FALSE;
+}
--- a/src/core/stack-tracker.c
+++ b/src/core/stack-tracker.c
--- a/src/core/stack-tracker.h
+++ b/src/core/stack-tracker.h
@ -37,36 +37,55 @@
 #define META_STACK_TRACKER_H

 #include <meta/screen.h>
+#include <meta/window.h>

 typedef struct _MetaStackTracker MetaStackTracker;

+typedef union _MetaStackWindow
+{
+  struct {
+    MetaWindowClientType type;
+  } any;
+  struct {
+    MetaWindowClientType type;
+    Window xwindow;
+  } x11;
+  struct {
+    MetaWindowClientType type;
+    MetaWindow *meta_window;
+  } wayland;
+} MetaStackWindow;
+
+gboolean meta_stack_window_equal (const MetaStackWindow *a,
+                                  const MetaStackWindow *b);
+
 MetaStackTracker *meta_stack_tracker_new  (MetaScreen       *screen);
 void              meta_stack_tracker_free (MetaStackTracker *tracker);

 /* These functions are called when we make an X call that changes the
 * stacking order; this allows MetaStackTracker to predict stacking
 * order before it receives events back from the X server */
-void meta_stack_tracker_record_add             (MetaStackTracker *tracker,
-						Window            window,
-                                                gulong            serial);
-void meta_stack_tracker_record_remove          (MetaStackTracker *tracker,
-						Window            window,
-                                                gulong            serial);
-void meta_stack_tracker_record_restack_windows (MetaStackTracker *tracker,
-						Window           *windows,
-						int               n_windows,
-                                                gulong            serial);
-void meta_stack_tracker_record_raise_above     (MetaStackTracker *tracker,
-						Window            window,
-						Window            sibling,
-                                                gulong            serial);
-void meta_stack_tracker_record_lower_below    (MetaStackTracker *tracker,
-						Window            window,
-						Window            sibling,
-                                                gulong            serial);
-void meta_stack_tracker_record_lower           (MetaStackTracker *tracker,
-						Window            window,
-                                                gulong            serial);
+void meta_stack_tracker_record_add             (MetaStackTracker      *tracker,
+                                                const MetaStackWindow *window,
+                                                gulong                 serial);
+void meta_stack_tracker_record_remove          (MetaStackTracker      *tracker,
+                                                const MetaStackWindow *window,
+                                                gulong                 serial);
+void meta_stack_tracker_record_restack_windows (MetaStackTracker      *tracker,
+                                                const MetaStackWindow *windows,
+						int                    n_windows,
+                                                gulong                 serial);
+void meta_stack_tracker_record_raise_above     (MetaStackTracker      *tracker,
+                                                const MetaStackWindow *window,
+                                                const MetaStackWindow *sibling,
+                                                gulong                 serial);
+void meta_stack_tracker_record_lower_below    (MetaStackTracker       *tracker,
+                                               const MetaStackWindow  *window,
+                                               const MetaStackWindow  *sibling,
+                                               gulong                  serial);
+void meta_stack_tracker_record_lower           (MetaStackTracker      *tracker,
+                                                const MetaStackWindow *window,
+                                                gulong                 serial);

 /* These functions are used to update the stack when we get events
 * reflecting changes to the stacking order */
@ -79,9 +98,9 @@ void meta_stack_tracker_reparent_event  (MetaStackTracker    *tracker,
 void meta_stack_tracker_configure_event (MetaStackTracker    *tracker,
 					 XConfigureEvent     *event);

-void meta_stack_tracker_get_stack  (MetaStackTracker  *tracker,
-                                    Window           **windows,
-                                    int               *n_windows);
+void meta_stack_tracker_get_stack  (MetaStackTracker      *tracker,
+                                    MetaStackWindow      **windows,
+                                    int                   *n_entries);

 void meta_stack_tracker_sync_stack       (MetaStackTracker *tracker);
 void meta_stack_tracker_queue_sync_stack (MetaStackTracker *tracker);
--- a/src/core/stack.c
+++ b/src/core/stack.c
@ -52,7 +52,7 @@

 #define WINDOW_IN_STACK(w) (w->stack_position >= 0)

-static void stack_sync_to_server (MetaStack *stack);
+static void stack_sync_to_xserver (MetaStack *stack);
 static void meta_window_set_stack_position_no_sync (MetaWindow *window,
                                                    int         position);
 static void stack_do_window_deletions (MetaStack *stack);
@ -71,14 +71,14 @@ meta_stack_new (MetaScreen *screen)
  stack = g_new (MetaStack, 1);

  stack->screen = screen;
-  stack->windows = g_array_new (FALSE, FALSE, sizeof (Window));
+  stack->xwindows = g_array_new (FALSE, FALSE, sizeof (Window));

  stack->sorted = NULL;
  stack->added = NULL;
  stack->removed = NULL;

  stack->freeze_count = 0;
-  stack->last_root_children_stacked = NULL;
+  stack->last_all_root_children_stacked = NULL;

  stack->n_positions = 0;

@ -89,17 +89,34 @@ meta_stack_new (MetaScreen *screen)
  return stack;
 }

+static void
+free_last_all_root_children_stacked_cache (MetaStack *stack)
+{
+  unsigned int i;
+
+  for (i = 0; i < stack->last_all_root_children_stacked->len; i++)
+    {
+      MetaStackWindow *window = &g_array_index (stack->last_all_root_children_stacked, MetaStackWindow, i);
+      if (window->any.type == META_WINDOW_CLIENT_TYPE_WAYLAND)
+        g_object_remove_weak_pointer (G_OBJECT (window->wayland.meta_window),
+                                      (gpointer *)&window->wayland.meta_window);
+    }
+
+  g_array_free (stack->last_all_root_children_stacked, TRUE);
+  stack->last_all_root_children_stacked = NULL;
+}
+
 void
 meta_stack_free (MetaStack *stack)
 {
-  g_array_free (stack->windows, TRUE);
+  g_array_free (stack->xwindows, TRUE);

  g_list_free (stack->sorted);
  g_list_free (stack->added);
  g_list_free (stack->removed);

-  if (stack->last_root_children_stacked)
-    g_array_free (stack->last_root_children_stacked, TRUE);
+  if (stack->last_all_root_children_stacked)
+    free_last_all_root_children_stacked_cache (stack);
  
  g_free (stack);
 }
@ -121,7 +138,7 @@ meta_stack_add (MetaStack  *stack,
              "Window %s has stack_position initialized to %d\n",
              window->desc, window->stack_position);
  
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
  meta_stack_update_window_tile_matches (stack, window->screen->active_workspace);
 }

@ -157,7 +174,7 @@ meta_stack_remove (MetaStack  *stack,
    stack->removed = g_list_prepend (stack->removed,
                                     GUINT_TO_POINTER (window->frame->xwindow));
  
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
  meta_stack_update_window_tile_matches (stack, window->screen->active_workspace);
 }

@ -167,7 +184,7 @@ meta_stack_update_layer (MetaStack  *stack,
 {
  stack->need_relayer = TRUE;
  
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
  meta_stack_update_window_tile_matches (stack, window->screen->active_workspace);
 }

@ -177,7 +194,7 @@ meta_stack_update_transient (MetaStack  *stack,
 {
  stack->need_constrain = TRUE;
  
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
  meta_stack_update_window_tile_matches (stack, window->screen->active_workspace);
 }

@ -206,7 +223,7 @@ meta_stack_raise (MetaStack  *stack,

  meta_window_set_stack_position_no_sync (window, max_stack_position);

-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
  meta_stack_update_window_tile_matches (stack, window->screen->active_workspace);
 }

@ -234,7 +251,7 @@ meta_stack_lower (MetaStack  *stack,

  meta_window_set_stack_position_no_sync (window, min_stack_position);
  
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
  meta_stack_update_window_tile_matches (stack, window->screen->active_workspace);
 }

@ -250,7 +267,7 @@ meta_stack_thaw (MetaStack *stack)
  g_return_if_fail (stack->freeze_count > 0);
  
  stack->freeze_count -= 1;
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
  meta_stack_update_window_tile_matches (stack, NULL);
 }

@ -829,7 +846,7 @@ stack_do_window_deletions (MetaStack *stack)
      /* We go from the end figuring removals are more
       * likely to be recent.
       */
-      i = stack->windows->len;
+      i = stack->xwindows->len;
      while (i > 0)
        {
          --i;
@ -840,9 +857,9 @@ stack_do_window_deletions (MetaStack *stack)
           * both the window->xwindow and window->frame->xwindow
           * in the removal list.
           */
-          if (xwindow == g_array_index (stack->windows, Window, i))
+          if (xwindow == g_array_index (stack->xwindows, Window, i))
            {
-              g_array_remove_index (stack->windows, i);
+              g_array_remove_index (stack->xwindows, i);
              goto next;
            }
        }
@ -871,10 +888,10 @@ stack_do_window_additions (MetaStack *stack)
                  "Adding %d windows to sorted list\n",
                  n_added);
      
-      old_size = stack->windows->len;
-      g_array_set_size (stack->windows, old_size + n_added);
+      old_size = stack->xwindows->len;
+      g_array_set_size (stack->xwindows, old_size + n_added);
      
-      end = &g_array_index (stack->windows, Window, old_size);
+      end = &g_array_index (stack->xwindows, Window, old_size);

      /* stack->added has the most recent additions at the
       * front of the list, so we need to reverse it
@ -1029,6 +1046,102 @@ stack_ensure_sorted (MetaStack *stack)
  stack_do_resort (stack);
 }

+static MetaStackWindow *
+find_top_most_managed_window (MetaScreen *screen,
+                              const MetaStackWindow *ignore)
+{
+  MetaStackTracker *stack_tracker = screen->stack_tracker;
+  MetaStackWindow *windows;
+  int n_windows;
+  int i;
+
+  meta_stack_tracker_get_stack (stack_tracker,
+                                &windows, &n_windows);
+
+  /* Children are in order from bottom to top. We want to
+   * find the topmost managed child, then configure
+   * our window to be above it.
+   */
+  for (i = n_windows -1; i >= 0; i--)
+    {
+      MetaStackWindow *other_window = &windows[i];
+
+      if (other_window->any.type == ignore->any.type &&
+          ((other_window->any.type == META_WINDOW_CLIENT_TYPE_X11 &&
+            other_window->x11.xwindow == ignore->x11.xwindow) ||
+           other_window->wayland.meta_window == ignore->wayland.meta_window))
+        {
+          /* Do nothing. This means we're already the topmost managed
+           * window, but it DOES NOT mean we are already just above
+           * the topmost managed window. This is important because if
+           * an override redirect window is up, and we map a new
+           * managed window, the new window is probably above the old
+           * popup by default, and we want to push it below that
+           * popup. So keep looking for a sibling managed window
+           * to be moved below.
+           */
+        }
+      else
+        {
+          if (other_window->any.type == META_WINDOW_CLIENT_TYPE_X11)
+            {
+              MetaWindow *other = meta_display_lookup_x_window (screen->display,
+                                                                other_window->x11.xwindow);
+
+              if (other != NULL && !other->override_redirect)
+                return other_window;
+            }
+          else
+            {
+              /* All wayland windows are currently considered "managed"
+               * TODO: consider wayland pop-up windows like override
+               * redirect windows here. */
+              return other_window;
+            }
+        }
+    }
+
+  return NULL;
+}
+
+/* When moving an X window we sometimes need an X based sibling.
+ *
+ * If the given sibling is X based this function returns it back
+ * otherwise it searches downwards looking for the nearest X window.
+ *
+ * If no X based sibling could be found return NULL. */
+static MetaStackWindow *
+find_x11_sibling_downwards (MetaScreen *screen,
+                            MetaStackWindow *sibling)
+{
+  MetaStackTracker *stack_tracker = screen->stack_tracker;
+  MetaStackWindow *windows;
+  int n_windows;
+  int i;
+
+  if (sibling->any.type == META_WINDOW_CLIENT_TYPE_X11)
+    return sibling;
+
+  meta_stack_tracker_get_stack (stack_tracker,
+                                &windows, &n_windows);
+
+  /* NB: Children are in order from bottom to top and we
+   * want to search downwards for the nearest X window.
+   */
+
+  for (i = n_windows - 1; i >= 0; i--)
+    if (meta_stack_window_equal (&windows[i], sibling))
+      break;
+
+  for (; i >= 0; i--)
+    {
+      if (windows[i].any.type == META_WINDOW_CLIENT_TYPE_X11)
+        return &windows[i];
+    }
+
+  return NULL;
+}
+
 /**
 * raise_window_relative_to_managed_windows:
 *
@ -1053,84 +1166,74 @@ stack_ensure_sorted (MetaStack *stack)
 */
 static void
 raise_window_relative_to_managed_windows (MetaScreen *screen,
-                                          Window      xwindow)
+                                          const MetaStackWindow *window)
 {
+  gulong serial = 0;
+  MetaStackWindow *sibling;

-  Window *children;
-  int n_children;
-  int i;
-
-  meta_stack_tracker_get_stack (screen->stack_tracker,
-                                &children, &n_children);
-
-  /* Children are in order from bottom to top. We want to
-   * find the topmost managed child, then configure
-   * our window to be above it.
-   */
-  i = n_children - 1;
-  while (i >= 0)
+  sibling = find_top_most_managed_window (screen, window);
+  if (!sibling)
    {
-      if (children[i] == xwindow)
+      if (window->any.type == META_WINDOW_CLIENT_TYPE_X11)
        {
-          /* Do nothing. This means we're already the topmost managed
-           * window, but it DOES NOT mean we are already just above
-           * the topmost managed window. This is important because if
-           * an override redirect window is up, and we map a new
-           * managed window, the new window is probably above the old
-           * popup by default, and we want to push it below that
-           * popup. So keep looking for a sibling managed window
-           * to be moved below.
-           */
+          serial = XNextRequest (screen->display->xdisplay);
+          meta_error_trap_push (screen->display);
+          XLowerWindow (screen->display->xdisplay,
+                        window->x11.xwindow);
+          meta_error_trap_pop (screen->display);
        }
-      else
-        {
-          MetaWindow *other = meta_display_lookup_x_window (screen->display,
-                                                            children[i]);
-          if (other != NULL && !other->override_redirect)
-            {
-              XWindowChanges changes;

-              /* children[i] is the topmost managed child */
+      /* No sibling to use, just lower ourselves to the bottom
+       * to be sure we're below any override redirect windows.
+           */
+      meta_stack_tracker_record_lower (screen->stack_tracker,
+                                       window,
+                                       serial);
+      return;
+        }
+
+  /* window is the topmost managed child */
              meta_topic (META_DEBUG_STACK,
                          "Moving 0x%lx above topmost managed child window 0x%lx\n",
-                          xwindow, children[i]);
+              window->any.type == META_WINDOW_CLIENT_TYPE_X11 ? window->x11.xwindow: 0,
+              sibling->any.type == META_WINDOW_CLIENT_TYPE_X11 ? sibling->x11.xwindow: 0);

-              changes.sibling = children[i];
+  if (window->any.type == META_WINDOW_CLIENT_TYPE_X11)
+    {
+      XWindowChanges changes;
+      MetaStackWindow *x11_sibling = find_x11_sibling_downwards (screen, sibling);
+      serial = XNextRequest (screen->display->xdisplay);
+
+      if (x11_sibling)
+        {
+          changes.sibling = x11_sibling->x11.xwindow;
              changes.stack_mode = Above;

              meta_error_trap_push (screen->display);
-              meta_stack_tracker_record_raise_above (screen->stack_tracker,
-                                                     xwindow,
-                                                     children[i],
-                                                     XNextRequest (screen->display->xdisplay));
              XConfigureWindow (screen->display->xdisplay,
-                                xwindow,
+                            window->x11.xwindow,
                                CWSibling | CWStackMode,
                                &changes);
              meta_error_trap_pop (screen->display);
-
-              break;
-            }
        }
-
-      --i;
-    }
-
-  if (i < 0)
+      else
    {
      /* No sibling to use, just lower ourselves to the bottom
       * to be sure we're below any override redirect windows.
       */
      meta_error_trap_push (screen->display);
-      meta_stack_tracker_record_lower (screen->stack_tracker,
-                                       xwindow,
-                                       XNextRequest (screen->display->xdisplay));
      XLowerWindow (screen->display->xdisplay,
-                    xwindow);
+                        window->x11.xwindow);
      meta_error_trap_pop (screen->display);
    }
 }

+  meta_stack_tracker_record_raise_above (screen->stack_tracker,
+                                         window,
+                                         sibling,
+                                         serial);
+}
+
 /**
 * stack_sync_to_server:
 *
@ -1145,13 +1248,16 @@ raise_window_relative_to_managed_windows (MetaScreen *screen,
 * job of computing the minimal set of stacking requests needed.
 */
 static void
-stack_sync_to_server (MetaStack *stack)
+stack_sync_to_xserver (MetaStack *stack)
 {
-  GArray *stacked;
-  GArray *root_children_stacked;
+  GArray *x11_stacked;
+  GArray *x11_root_children_stacked;
+  GArray *all_root_children_stacked; /* wayland OR x11 */
  GList *tmp;
-  GArray *all_hidden;
+  GArray *x11_hidden;
+  GArray *x11_hidden_stack_windows;
  int n_override_redirect = 0;
+  MetaStackWindow guard_stack_window;
  
  /* Bail out if frozen */
  if (stack->freeze_count > 0)
@ -1166,13 +1272,17 @@ stack_sync_to_server (MetaStack *stack)
   * _NET hints, and "root_children_stacked" is in top-to-bottom
   * order for XRestackWindows()
   */
-  stacked = g_array_new (FALSE, FALSE, sizeof (Window));
-  root_children_stacked = g_array_new (FALSE, FALSE, sizeof (Window));
-  all_hidden = g_array_new (FALSE, FALSE, sizeof (Window));
+  x11_stacked = g_array_new (FALSE, FALSE, sizeof (Window));
+
+  all_root_children_stacked = g_array_new (FALSE, FALSE, sizeof (MetaStackWindow));
+  x11_root_children_stacked = g_array_new (FALSE, FALSE, sizeof (Window));
+
+  x11_hidden_stack_windows = g_array_new (FALSE, FALSE, sizeof (MetaStackWindow));
+  x11_hidden = g_array_new (FALSE, FALSE, sizeof (Window));

  /* The screen guard window sits above all hidden windows and acts as
   * a barrier to input reaching these windows. */
-  g_array_append_val (all_hidden, stack->screen->guard_window);
+  g_array_append_val (x11_hidden, stack->screen->guard_window);

  meta_topic (META_DEBUG_STACK, "Top to bottom: ");
  meta_push_no_msg_prefix ();
@ -1181,6 +1291,9 @@ stack_sync_to_server (MetaStack *stack)
    {
      MetaWindow *w = tmp->data;
      Window top_level_window;
+      MetaStackWindow stack_window;
+
+      stack_window.any.type = w->client_type;
      
      meta_topic (META_DEBUG_STACK, "%u:%d - %s ",
 		  w->layer, w->stack_position, w->desc);
@ -1189,60 +1302,93 @@ stack_sync_to_server (MetaStack *stack)
      if (w->override_redirect)
 	n_override_redirect++;
      else
-	g_array_prepend_val (stacked, w->xwindow);
+	g_array_prepend_val (x11_stacked, w->xwindow);
      
      if (w->frame)
 	top_level_window = w->frame->xwindow;
      else
 	top_level_window = w->xwindow;

+      if (w->client_type == META_WINDOW_CLIENT_TYPE_X11)
+        stack_window.x11.xwindow = top_level_window;
+      else
+        stack_window.wayland.meta_window = w;
+
      /* We don't restack hidden windows along with the rest, though they are
       * reflected in the _NET hints. Hidden windows all get pushed below
       * the screens fullscreen guard_window. */
      if (w->hidden)
 	{
-	  g_array_append_val (all_hidden, top_level_window);
+          if (w->client_type == META_WINDOW_CLIENT_TYPE_X11)
+            {
+              MetaStackWindow stack_window;
+
+              stack_window.any.type = META_WINDOW_CLIENT_TYPE_X11;
+              stack_window.x11.xwindow = top_level_window;
+
+              g_array_append_val (x11_hidden_stack_windows, stack_window);
+              g_array_append_val (x11_hidden, top_level_window);
+            }
 	  continue;
 	}

+      g_array_append_val (all_root_children_stacked, stack_window);
+
      /* build XRestackWindows() array from top to bottom */
-      g_array_append_val (root_children_stacked, top_level_window);
+      if (w->client_type == META_WINDOW_CLIENT_TYPE_X11)
+        g_array_append_val (x11_root_children_stacked, top_level_window);
+      else
+        {
+          MetaStackWindow *new;
+
+          /* So we can determine later if a cached stack window is
+           * stale because the corresponding window has been freed we
+           * associate a weak pointer with the new window. */
+          new = &g_array_index (all_root_children_stacked, MetaStackWindow, all_root_children_stacked->len - 1);
+          g_object_add_weak_pointer (G_OBJECT (new->wayland.meta_window),
+                                     (gpointer *)&new->wayland.meta_window);
+        }
    }

  meta_topic (META_DEBUG_STACK, "\n");
  meta_pop_no_msg_prefix ();

-  /* All windows should be in some stacking order */
-  if (stacked->len != stack->windows->len - n_override_redirect)
+  /* All X windows should be in some stacking order */
+  if (x11_stacked->len != stack->xwindows->len - n_override_redirect)
    meta_bug ("%u windows stacked, %u windows exist in stack\n",
-              stacked->len, stack->windows->len);
+              x11_stacked->len, stack->xwindows->len);
  
  /* Sync to server */

  meta_topic (META_DEBUG_STACK, "Restacking %u windows\n",
-              root_children_stacked->len);
+              all_root_children_stacked->len);
  
  meta_error_trap_push (stack->screen->display);

-  if (stack->last_root_children_stacked == NULL)
+  if (stack->last_all_root_children_stacked == NULL)
    {
      /* Just impose our stack, we don't know the previous state.
       * This involves a ton of circulate requests and may flicker.
       */
      meta_topic (META_DEBUG_STACK, "Don't know last stack state, restacking everything\n");

-      if (root_children_stacked->len > 0)
+      if (all_root_children_stacked->len > 1)
        {
-          meta_stack_tracker_record_restack_windows (stack->screen->stack_tracker,
-                                                     (Window *) root_children_stacked->data,
-                                                     root_children_stacked->len,
-                                                     XNextRequest (stack->screen->display->xdisplay));
+          gulong serial = 0;
+          if (x11_root_children_stacked->len > 1)
+            {
+              serial = XNextRequest (stack->screen->display->xdisplay);
          XRestackWindows (stack->screen->display->xdisplay,
-                           (Window *) root_children_stacked->data,
-                           root_children_stacked->len);
+                               (Window *) x11_root_children_stacked->data,
+                               x11_root_children_stacked->len);
+            }
+          meta_stack_tracker_record_restack_windows (stack->screen->stack_tracker,
+                                                     (MetaStackWindow *) all_root_children_stacked->data,
+                                                     all_root_children_stacked->len,
+                                                     serial);
        }
    }
-  else if (root_children_stacked->len > 0)
+  else if (all_root_children_stacked->len > 0)
    {
      /* Try to do minimal window moves to get the stack in order */
      /* A point of note: these arrays include frames not client windows,
@ -1250,28 +1396,34 @@ stack_sync_to_server (MetaStack *stack)
       * was saved, then we may have inefficiency, but I don't think things
       * break...
       */
-      const Window *old_stack = (Window *) stack->last_root_children_stacked->data;
-      const Window *new_stack = (Window *) root_children_stacked->data;
-      const int old_len = stack->last_root_children_stacked->len;
-      const int new_len = root_children_stacked->len;
-      const Window *oldp = old_stack;
-      const Window *newp = new_stack;
-      const Window *old_end = old_stack + old_len;
-      const Window *new_end = new_stack + new_len;
-      Window last_window = None;
-      
+      const MetaStackWindow *old_stack = (MetaStackWindow *) stack->last_all_root_children_stacked->data;
+      const MetaStackWindow *new_stack = (MetaStackWindow *) all_root_children_stacked->data;
+      const int old_len = stack->last_all_root_children_stacked->len;
+      const int new_len = all_root_children_stacked->len;
+      const MetaStackWindow *oldp = old_stack;
+      const MetaStackWindow *newp = new_stack;
+      const MetaStackWindow *old_end = old_stack + old_len;
+      const MetaStackWindow *new_end = new_stack + new_len;
+      Window last_xwindow = None;
+      const MetaStackWindow *last_window = NULL;
+
      while (oldp != old_end &&
             newp != new_end)
        {
-          if (*oldp == *newp)
+          if (meta_stack_window_equal (oldp, newp))
            {
              /* Stacks are the same here, move on */
              ++oldp;
-              last_window = *newp;
+              if (newp->any.type == META_WINDOW_CLIENT_TYPE_X11)
+                last_xwindow = newp->x11.xwindow;
+              last_window = newp;
              ++newp;
            }
-          else if (meta_display_lookup_x_window (stack->screen->display,
-                                                 *oldp) == NULL)
+          else if ((oldp->any.type == META_WINDOW_CLIENT_TYPE_X11 &&
+                    meta_display_lookup_x_window (stack->screen->display,
+                                                  oldp->x11.xwindow) == NULL) ||
+                   (oldp->any.type == META_WINDOW_CLIENT_TYPE_WAYLAND &&
+                    oldp->wayland.meta_window == NULL))
            {
              /* *oldp is no longer known to us (probably destroyed),
               * so we can just skip it
@ -1280,75 +1432,161 @@ stack_sync_to_server (MetaStack *stack)
            }
          else
            {
-              /* Move *newp below last_window */
-              if (last_window == None)
+              /* Move *newp below the last_window */
+              if (!last_window)
                {
-                  meta_topic (META_DEBUG_STACK, "Using window 0x%lx as topmost (but leaving it in-place)\n", *newp);
+                  meta_topic (META_DEBUG_STACK, "Using window 0x%lx as topmost (but leaving it in-place)\n",
+                              newp->x11.xwindow);

-                  raise_window_relative_to_managed_windows (stack->screen,
-                                                            *newp);
+                  raise_window_relative_to_managed_windows (stack->screen, newp);
+                }
+              else if (newp->any.type == META_WINDOW_CLIENT_TYPE_X11 &&
+                       last_xwindow == None)
+                {
+                  /* In this case we have an X window that we need to
+                   * put below a wayland window and this is the
+                   * topmost X window. */
+                  
+                  /* In X terms (because this is the topmost X window)
+                   * we want to
+                   * raise_window_relative_to_managed_windows() to
+                   * ensure the X window is below override-redirect
+                   * pop-up windows.
+                   *
+                   * In Wayland terms we just want to ensure
+                   * newp is lowered below last_window (which
+                   * notably doesn't require an X request because we
+                   * know last_window isn't an X window).
+                   */
+
+                  raise_window_relative_to_managed_windows (stack->screen, newp);
+
+                  meta_stack_tracker_record_lower_below (stack->screen->stack_tracker,
+                                                         newp, last_window,
+                                                         0); /* no x request serial */
                }
              else
                {
-                  /* This means that if last_window is dead, but not
+                  gulong serial = 0;
+
+                  /* This means that if last_xwindow is dead, but not
                   * *newp, then we fail to restack *newp; but on
-                   * unmanaging last_window, we'll fix it up.
+                   * unmanaging last_xwindow, we'll fix it up.
                   */
                  
-                  XWindowChanges changes;
+                  meta_topic (META_DEBUG_STACK, "Placing window 0x%lx below 0x%lx\n",
+                              newp->any.type == META_WINDOW_CLIENT_TYPE_X11 ? newp->x11.xwindow : 0,
+                              last_xwindow);

-                  changes.sibling = last_window;
+                  if (newp->any.type == META_WINDOW_CLIENT_TYPE_X11)
+                    {
+                  XWindowChanges changes;
+                      serial = XNextRequest (stack->screen->display->xdisplay);
+
+                      changes.sibling = last_xwindow;
                  changes.stack_mode = Below;

-                  meta_topic (META_DEBUG_STACK, "Placing window 0x%lx below 0x%lx\n",
-                              *newp, last_window);
-
-                  meta_stack_tracker_record_lower_below (stack->screen->stack_tracker,
-                                                         *newp, last_window,
-                                                         XNextRequest (stack->screen->display->xdisplay));
                  XConfigureWindow (stack->screen->display->xdisplay,
-                                    *newp,
+                                        newp->x11.xwindow,
                                    CWSibling | CWStackMode,
                                    &changes);
                }

-              last_window = *newp;
+                  meta_stack_tracker_record_lower_below (stack->screen->stack_tracker,
+                                                         newp, last_window,
+                                                         serial);
+                }
+
+              if (newp->any.type == META_WINDOW_CLIENT_TYPE_X11)
+                last_xwindow = newp->x11.xwindow;
+              last_window = newp;
              ++newp;
            }
        }

      if (newp != new_end)
        {
+          const MetaStackWindow *x_ref;
+          unsigned long serial = 0;
+
          /* Restack remaining windows */
          meta_topic (META_DEBUG_STACK, "Restacking remaining %d windows\n",
                        (int) (new_end - newp));
+
+          /* rewind until we find the last stacked X window that we can use
+           * as a reference point for re-stacking remaining X windows */
+          if (newp != new_stack)
+            for (x_ref = newp - 1;
+                 x_ref->any.type != META_WINDOW_CLIENT_TYPE_X11 && x_ref > new_stack;
+                 x_ref--)
+              ;
+          else
+            x_ref = new_stack;
+
+          /* If we didn't find an X window looking backwards then walk forwards
+           * through the remaining windows to find the first remaining X window
+           * instead. */
+          if (x_ref->any.type != META_WINDOW_CLIENT_TYPE_X11)
+            {
+              for (x_ref = newp;
+                   x_ref->any.type != META_WINDOW_CLIENT_TYPE_X11 && x_ref > new_stack;
+                   x_ref++)
+                ;
+            }
+
+          /* If there are any X windows remaining unstacked then restack them */
+          if (x_ref->any.type == META_WINDOW_CLIENT_TYPE_X11)
+            {
+              int i;
+
+              for (i = x11_root_children_stacked->len - 1; i; i--)
+                {
+                  Window *reference = &g_array_index (x11_root_children_stacked, Window, i);
+
+                  if (*reference == x_ref->x11.xwindow)
+                    {
+                      int n = x11_root_children_stacked->len - i;
+
+                      /* There's no point restacking if there's only one X window */
+                      if (n == 1)
+                        break;
+
+                      serial = XNextRequest (stack->screen->display->xdisplay);
+                      XRestackWindows (stack->screen->display->xdisplay,
+                                       reference, n);
+                      break;
+                    }
+                }
+            }
+
          /* We need to include an already-stacked window
           * in the restack call, so we get in the proper position
           * with respect to it.
           */
          if (newp != new_stack)
-            --newp;
+            newp = MIN (newp - 1, x_ref);
          meta_stack_tracker_record_restack_windows (stack->screen->stack_tracker,
-                                                     (Window *) newp, new_end - newp,
-                                                     XNextRequest (stack->screen->display->xdisplay));
-          XRestackWindows (stack->screen->display->xdisplay,
-                           (Window *) newp, new_end - newp);
+                                                     newp, new_end - newp,
+                                                     serial);
        }
    }

-  /* Push hidden windows to the bottom of the stack under the guard window */
+  /* Push hidden X windows to the bottom of the stack under the guard window */
+  guard_stack_window.any.type = META_WINDOW_CLIENT_TYPE_X11;
+  guard_stack_window.x11.xwindow = stack->screen->guard_window;
  meta_stack_tracker_record_lower (stack->screen->stack_tracker,
-                                   stack->screen->guard_window,
+                                   &guard_stack_window,
                                   XNextRequest (stack->screen->display->xdisplay));
  XLowerWindow (stack->screen->display->xdisplay, stack->screen->guard_window);
  meta_stack_tracker_record_restack_windows (stack->screen->stack_tracker,
-                                             (Window *)all_hidden->data,
-                                             all_hidden->len,
+                                             (MetaStackWindow *)x11_hidden_stack_windows->data,
+                                             x11_hidden_stack_windows->len,
                                             XNextRequest (stack->screen->display->xdisplay));
  XRestackWindows (stack->screen->display->xdisplay,
-		   (Window *)all_hidden->data,
-		   all_hidden->len);
-  g_array_free (all_hidden, TRUE);
+		   (Window *)x11_hidden->data,
+		   x11_hidden->len);
+  g_array_free (x11_hidden, TRUE);
+  g_array_free (x11_hidden_stack_windows, TRUE);

  meta_error_trap_pop (stack->screen->display);
  /* on error, a window was destroyed; it should eventually
@ -1363,21 +1601,23 @@ stack_sync_to_server (MetaStack *stack)
                   stack->screen->display->atom__NET_CLIENT_LIST,
                   XA_WINDOW,
                   32, PropModeReplace,
-                   (unsigned char *)stack->windows->data,
-                   stack->windows->len);
+                   (unsigned char *)stack->xwindows->data,
+                   stack->xwindows->len);
  XChangeProperty (stack->screen->display->xdisplay,
                   stack->screen->xroot,
                   stack->screen->display->atom__NET_CLIENT_LIST_STACKING,
                   XA_WINDOW,
                   32, PropModeReplace,
-                   (unsigned char *)stacked->data,
-                   stacked->len);
+                   (unsigned char *)x11_stacked->data,
+                   x11_stacked->len);

-  g_array_free (stacked, TRUE);
+  g_array_free (x11_stacked, TRUE);

-  if (stack->last_root_children_stacked)
-    g_array_free (stack->last_root_children_stacked, TRUE);
-  stack->last_root_children_stacked = root_children_stacked;
+  if (stack->last_all_root_children_stacked)
+    free_last_all_root_children_stacked_cache (stack);
+  stack->last_all_root_children_stacked = all_root_children_stacked;
+
+  g_array_free (x11_root_children_stacked, TRUE);

  /* That was scary... */
 }
@ -1738,7 +1978,7 @@ meta_stack_set_positions (MetaStack *stack,
  meta_topic (META_DEBUG_STACK,
              "Reset the stack positions of (nearly) all windows\n");

-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
  meta_stack_update_window_tile_matches (stack, NULL);
 }

@ -1801,7 +2041,7 @@ meta_window_set_stack_position (MetaWindow *window,
                                int         position)
 {
  meta_window_set_stack_position_no_sync (window, position);
-  stack_sync_to_server (window->screen->stack);
+  stack_sync_to_xserver (window->screen->stack);
  meta_stack_update_window_tile_matches (window->screen->stack,
                                         window->screen->active_workspace);
 }
--- a/src/core/stack.h
+++ b/src/core/stack.h
@ -60,7 +60,7 @@ struct _MetaStack
   * A sequence of all the Windows (X handles, not MetaWindows) of the windows
   * we manage, sorted in order.  Suitable to be passed into _NET_CLIENT_LIST.
   */
-  GArray *windows;
+  GArray *xwindows;

  /** The MetaWindows of the windows we manage, sorted in order. */
  GList *sorted;
@ -99,7 +99,7 @@ struct _MetaStack
   * The last-known stack of all windows, bottom to top.  We cache it here
   * so that subsequent times we'll be able to do incremental moves.
   */
-  GArray *last_root_children_stacked;
+  GArray *last_all_root_children_stacked;

  /**
   * Number of stack positions; same as the length of added, but
--- a/src/core/util.c
+++ b/src/core/util.c
@ -55,6 +55,7 @@ static gint verbose_topics = 0;
 static gboolean is_debugging = FALSE;
 static gboolean replace_current = FALSE;
 static int no_prefix = 0;
+static gboolean is_wayland_compositor = FALSE;

 #ifdef WITH_VERBOSE_MODE
 static FILE* logfile = NULL;
@ -194,6 +195,18 @@ meta_set_replace_current_wm (gboolean setting)
  replace_current = setting;
 }

+gboolean
+meta_is_wayland_compositor (void)
+{
+  return is_wayland_compositor;
+}
+
+void
+meta_set_is_wayland_compositor (gboolean value)
+{
+  is_wayland_compositor = value;
+}
+
 char *
 meta_g_utf8_strndup (const gchar *src,
                     gsize        n)
@ -332,6 +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";
    }
@ -637,8 +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");
--- a/src/core/window-private.h
+++ b/src/core/window-private.h
@ -44,6 +44,15 @@
 #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

 typedef struct _MetaWindowQueue MetaWindowQueue;

@ -69,6 +78,7 @@ typedef enum {
  _NET_WM_BYPASS_COMPOSITOR_HINT_OFF = 2,
 } MetaBypassCompositorHintValue;

+
 struct _MetaWindow
 {
  GObject parent_instance;
@ -77,6 +87,10 @@ struct _MetaWindow
  MetaScreen *screen;
  const MetaMonitorInfo *monitor;
  MetaWorkspace *workspace;
+  MetaWindowClientType client_type;
+#ifdef HAVE_WAYLAND
+  MetaWaylandSurface *surface;
+#endif
  Window xwindow;
  /* may be NULL! not all windows get decorated */
  MetaFrame *frame;
@ -165,7 +179,7 @@ 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;
@ -325,9 +339,6 @@ 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 shape mask */
-  guint has_shape : 1;
-
  /* icon props have changed */
  guint need_reread_icon : 1;
  
@ -349,9 +360,15 @@ 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;
@ -490,6 +507,10 @@ MetaWindow* meta_window_new_with_attrs     (MetaDisplay       *display,
                                            gboolean           must_be_viewable,
                                            MetaCompEffect     effect,
                                            XWindowAttributes *attrs);
+MetaWindow *meta_window_new_for_wayland    (MetaDisplay        *display,
+                                            int                 width,
+                                            int                 height,
+                                            MetaWaylandSurface *surface);
 void        meta_window_unmanage           (MetaWindow  *window,
                                            guint32      timestamp);
 void        meta_window_calc_showing       (MetaWindow  *window);
@ -665,7 +686,6 @@ 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);

@ -679,4 +699,16 @@ 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);
+
 #endif
--- a/src/core/window-props.c
+++ b/src/core/window-props.c
@ -565,7 +565,7 @@ reload_opaque_region (MetaWindow    *window,
                      MetaPropValue *value,
                      gboolean       initial)
 {
-  meta_window_update_opaque_region (window);
+  meta_window_update_opaque_region_x11 (window);
 }

 static void
--- a/src/core/window.c
+++ b/src/core/window.c
@ -62,6 +62,8 @@

 #include <X11/extensions/Xcomposite.h>

+#include "meta-wayland-private.h"
+
 /* Windows that unmaximize to a size bigger than that fraction of the workarea
 * will be scaled down to that size (while maintaining aspect ratio).
 * Windows that cover an area greater then this size are automaximized on map.
@ -713,10 +715,10 @@ meta_window_new (MetaDisplay *display,
 * Returns TRUE if window has been filtered out and should be ignored.
 */
 static gboolean
-maybe_filter_window (MetaDisplay       *display,
-                     Window             xwindow,
-                     gboolean           must_be_viewable,
-                     XWindowAttributes *attrs)
+maybe_filter_xwindow (MetaDisplay       *display,
+                      Window             xwindow,
+                      gboolean           must_be_viewable,
+                      XWindowAttributes *attrs)
 {
  static char **filter_wm_classes = NULL;
  static gboolean initialized = FALSE;
@ -812,80 +814,23 @@ meta_window_should_attach_to_parent (MetaWindow *window)
    }
 }

-MetaWindow*
-meta_window_new_with_attrs (MetaDisplay       *display,
-                            Window             xwindow,
-                            gboolean           must_be_viewable,
-                            MetaCompEffect     effect,
-                            XWindowAttributes *attrs)
+static MetaWindow*
+meta_window_new_shared (MetaDisplay         *display,
+                        MetaScreen          *screen,
+                        MetaWindowClientType client_type,
+                        MetaWaylandSurface  *surface,
+                        Window               xwindow,
+                        gboolean             must_be_viewable,
+                        gulong               existing_wm_state,
+                        MetaCompEffect       effect,
+                        XWindowAttributes   *attrs)
 {
  MetaWindow *window;
-  GSList *tmp;
  MetaWorkspace *space;
-  gulong existing_wm_state;
-  gulong event_mask;
  MetaMoveResizeFlags flags;
-  gboolean has_shape;
-  MetaScreen *screen;

  g_assert (attrs != NULL);

-  meta_verbose ("Attempting to manage 0x%lx\n", xwindow);
-
-  if (meta_display_xwindow_is_a_no_focus_window (display, xwindow))
-    {
-      meta_verbose ("Not managing no_focus_window 0x%lx\n",
-                    xwindow);
-      return NULL;
-    }
-
-  screen = NULL;
-  for (tmp = display->screens; tmp != NULL; tmp = tmp->next)
-    {
-      MetaScreen *scr = tmp->data;
-
-      if (scr->xroot == attrs->root)
-        {
-          screen = tmp->data;
-          break;
-        }
-    }
-
-  g_assert (screen);
-
-  /* A black list of override redirect windows that we don't need to manage: */
-  if (attrs->override_redirect &&
-      (xwindow == screen->no_focus_window ||
-       xwindow == screen->flash_window ||
-       xwindow == screen->wm_sn_selection_window ||
-       attrs->class == InputOnly ||
-       /* any windows created via meta_create_offscreen_window: */
-       (attrs->x == -100 && attrs->y == -100
-	&& attrs->width == 1 && attrs->height == 1) ||
-       xwindow == screen->wm_cm_selection_window ||
-       xwindow == screen->guard_window ||
-       (display->compositor &&
-        xwindow == XCompositeGetOverlayWindow (display->xdisplay,
-					       screen->xroot)
-       )
-      )
-     ) {
-    meta_verbose ("Not managing our own windows\n");
-    return NULL;
-  }
-
-  if (maybe_filter_window (display, xwindow, must_be_viewable, attrs))
-    {
-      meta_verbose ("Not managing filtered window\n");
-      return NULL;
-    }
-
-  /* Grab server */
-  meta_display_grab (display);
-  meta_error_trap_push (display); /* Push a trap over all of window
-                                   * creation, to reduce XSync() calls
-                                   */
-
  meta_verbose ("must_be_viewable = %d attrs->map_state = %d (%s)\n",
                must_be_viewable,
                attrs->map_state,
@ -897,126 +842,14 @@ meta_window_new_with_attrs (MetaDisplay       *display,
                "IsUnviewable" :
                "(unknown)");

-  existing_wm_state = WithdrawnState;
-  if (must_be_viewable && attrs->map_state != IsViewable)
-    {
-      /* Only manage if WM_STATE is IconicState or NormalState */
-      gulong state;
-
-      /* WM_STATE isn't a cardinal, it's type WM_STATE, but is an int */
-      if (!(meta_prop_get_cardinal_with_atom_type (display, xwindow,
-                                                   display->atom_WM_STATE,
-                                                   display->atom_WM_STATE,
-                                                   &state) &&
-            (state == IconicState || state == NormalState)))
-        {
-          meta_verbose ("Deciding not to manage unmapped or unviewable window 0x%lx\n", xwindow);
-          meta_error_trap_pop (display);
-          meta_display_ungrab (display);
-          return NULL;
-        }
-
-      existing_wm_state = state;
-      meta_verbose ("WM_STATE of %lx = %s\n", xwindow,
-                    wm_state_to_string (existing_wm_state));
-    }
-
-  meta_error_trap_push_with_return (display);
-
-  /*
-   * XAddToSaveSet can only be called on windows created by a different client.
-   * with Mutter we want to be able to create manageable windows from within
-   * the process (such as a dummy desktop window), so we do not want this
-   * call failing to prevent the window from being managed -- wrap it in its
-   * own error trap (we use the _with_return() version here to ensure that
-   * XSync() is done on the pop, otherwise the error will not get caught).
-   */
-  meta_error_trap_push_with_return (display);
-  XAddToSaveSet (display->xdisplay, xwindow);
-  meta_error_trap_pop_with_return (display);
-
-  event_mask = PropertyChangeMask | ColormapChangeMask;
-  if (attrs->override_redirect)
-    event_mask |= StructureNotifyMask;
-
-  /* If the window is from this client (a menu, say) we need to augment
-   * the event mask, not replace it. For windows from other clients,
-   * attrs->your_event_mask will be empty at this point.
-   */
-  XSelectInput (display->xdisplay, xwindow, attrs->your_event_mask | event_mask);
-
-  {
-    unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
-    XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
-
-    meta_core_add_old_event_mask (display->xdisplay, xwindow, &mask);
-
-    XISetMask (mask.mask, XI_Enter);
-    XISetMask (mask.mask, XI_Leave);
-    XISetMask (mask.mask, XI_FocusIn);
-    XISetMask (mask.mask, XI_FocusOut);
-
-    XISelectEvents (display->xdisplay, xwindow, &mask, 1);
-  }
-
-  has_shape = FALSE;
-#ifdef HAVE_SHAPE
-  if (META_DISPLAY_HAS_SHAPE (display))
-    {
-      int x_bounding, y_bounding, x_clip, y_clip;
-      unsigned w_bounding, h_bounding, w_clip, h_clip;
-      int bounding_shaped, clip_shaped;
-
-      XShapeSelectInput (display->xdisplay, xwindow, ShapeNotifyMask);
-
-      XShapeQueryExtents (display->xdisplay, xwindow,
-                          &bounding_shaped, &x_bounding, &y_bounding,
-                          &w_bounding, &h_bounding,
-                          &clip_shaped, &x_clip, &y_clip,
-                          &w_clip, &h_clip);
-
-      has_shape = bounding_shaped != FALSE;
-
-      meta_topic (META_DEBUG_SHAPES,
-                  "Window has_shape = %d extents %d,%d %u x %u\n",
-                  has_shape, x_bounding, y_bounding,
-                  w_bounding, h_bounding);
-    }
-#endif
-
-  /* Get rid of any borders */
-  if (attrs->border_width != 0)
-    XSetWindowBorderWidth (display->xdisplay, xwindow, 0);
-
-  /* Get rid of weird gravities */
-  if (attrs->win_gravity != NorthWestGravity)
-    {
-      XSetWindowAttributes set_attrs;
-
-      set_attrs.win_gravity = NorthWestGravity;
-
-      XChangeWindowAttributes (display->xdisplay,
-                               xwindow,
-                               CWWinGravity,
-                               &set_attrs);
-    }
-
-  if (meta_error_trap_pop_with_return (display) != Success)
-    {
-      meta_verbose ("Window 0x%lx disappeared just as we tried to manage it\n",
-                    xwindow);
-      meta_error_trap_pop (display);
-      meta_display_ungrab (display);
-      return NULL;
-    }
-
-
  window = g_object_new (META_TYPE_WINDOW, NULL);

  window->constructing = TRUE;

  window->dialog_pid = -1;

+  window->client_type = client_type;
+  window->surface = surface;
  window->xwindow = xwindow;

  /* this is in window->screen->display, but that's too annoying to
@ -1041,8 +874,6 @@ meta_window_new_with_attrs (MetaDisplay       *display,
  /* avoid tons of stack updates */
  meta_stack_freeze (window->screen->stack);

-  window->has_shape = has_shape;
-
  window->rect.x = attrs->x;
  window->rect.y = attrs->y;
  window->rect.width = attrs->width;
@ -1142,7 +973,11 @@ meta_window_new_with_attrs (MetaDisplay       *display,
  window->mwm_has_move_func = TRUE;
  window->mwm_has_resize_func = TRUE;

-  window->decorated = TRUE;
+  if (client_type == META_WINDOW_CLIENT_TYPE_X11)
+    window->decorated = TRUE;
+  else
+    window->decorated = FALSE;
+
  window->has_close_func = TRUE;
  window->has_minimize_func = TRUE;
  window->has_maximize_func = TRUE;
@ -1201,23 +1036,28 @@ meta_window_new_with_attrs (MetaDisplay       *display,

  window->tile_match = NULL;

-  if (window->override_redirect)
-    {
-      window->decorated = FALSE;
-      window->always_sticky = TRUE;
-      window->has_close_func = FALSE;
-      window->has_shade_func = FALSE;
-      window->has_move_func = FALSE;
-      window->has_resize_func = FALSE;
-    }
-
-  meta_display_register_x_window (display, &window->xwindow, window);
-
  /* Assign this #MetaWindow a sequence number which can be used
   * for sorting.
   */
  window->stable_sequence = ++display->window_sequence_counter;

+  if (client_type == META_WINDOW_CLIENT_TYPE_X11)
+    {
+      if (window->override_redirect)
+        {
+          window->decorated = FALSE;
+          window->always_sticky = TRUE;
+          window->has_close_func = FALSE;
+          window->has_shade_func = FALSE;
+          window->has_move_func = FALSE;
+          window->has_resize_func = FALSE;
+        }
+
+      meta_display_register_x_window (display, &window->xwindow, window);
+      meta_window_update_shape_region_x11 (window);
+      meta_window_update_input_region_x11 (window);
+    }
+
  /* assign the window to its group, or create a new group if needed
   */
  window->group = NULL;
@ -1226,7 +1066,8 @@ meta_window_new_with_attrs (MetaDisplay       *display,

  meta_window_load_initial_properties (window);

-  if (!window->override_redirect)
+  if (!window->override_redirect &&
+      client_type == META_WINDOW_CLIENT_TYPE_X11)
    {
      update_sm_hints (window); /* must come after transient_for */

@ -1300,6 +1141,16 @@ meta_window_new_with_attrs (MetaDisplay       *display,
  if (window->decorated)
    meta_window_ensure_frame (window);

+  if (window->client_type == META_WINDOW_CLIENT_TYPE_WAYLAND)
+    {
+      MetaStackWindow stack_window;
+      stack_window.any.type = META_WINDOW_CLIENT_TYPE_WAYLAND;
+      stack_window.wayland.meta_window = window;
+      meta_stack_tracker_record_add (window->screen->stack_tracker,
+                                     &stack_window,
+                                     0);
+    }
+
  meta_window_grab_keys (window);
  if (window->type != META_WINDOW_DOCK && !window->override_redirect)
    {
@ -1500,11 +1351,14 @@ meta_window_new_with_attrs (MetaDisplay       *display,
      !window->initially_iconic)
    unminimize_window_and_all_transient_parents (window);

-  meta_error_trap_pop (display); /* pop the XSync()-reducing trap */
-  meta_display_ungrab (display);
-
  window->constructing = FALSE;

+  return window;
+}
+
+static void
+display_notify_window (MetaDisplay *display, MetaWindow *window)
+{
  meta_display_notify_window_created (display, window);

  if (window->wm_state_demands_attention)
@ -1512,6 +1366,254 @@ meta_window_new_with_attrs (MetaDisplay       *display,

  if (window->wm_hints_urgent)
    g_signal_emit_by_name (window->display, "window-marked-urgent", window);
+}
+
+MetaWindow *
+meta_window_new_for_wayland (MetaDisplay        *display,
+                             int                 width,
+                             int                 height,
+                             MetaWaylandSurface *surface)
+{
+  XWindowAttributes attrs;
+  MetaScreen *scr = display->screens->data;
+  MetaWindow *window;
+
+  attrs.x = 0;
+  attrs.y = 0;
+  attrs.width = width;
+  attrs.height = height;
+  attrs.border_width = 0;
+  attrs.depth = 24;
+  attrs.visual = NULL;
+  attrs.root = scr->xroot;
+  attrs.class = InputOutput;
+  attrs.bit_gravity = NorthWestGravity;
+  attrs.win_gravity = NorthWestGravity;
+  attrs.backing_store = 0;
+  attrs.backing_planes = ~0;
+  attrs.backing_pixel = 0;
+  attrs.save_under = 0;
+  attrs.colormap = 0;
+  attrs.map_installed = 1;
+  attrs.map_state = IsUnmapped;
+  attrs.all_event_masks = ~0;
+  attrs.your_event_mask = 0;
+  attrs.do_not_propagate_mask = 0;
+  attrs.override_redirect = 0;
+  attrs.screen = scr->xscreen;
+
+  /* XXX: Note: In the Wayland case we currently still grab the
+   * xserver and trap X errors while creating a MetaWindow because we
+   * will still be making various redundant X requests (passing a
+   * window xid of None) until we thoroughly audit all the code to
+   * make sure it knows about non X based clients...
+   */
+
+  /* Grab server */
+  meta_display_grab (display);
+  meta_error_trap_push (display); /* Push a trap over all of window
+                                   * creation, to reduce XSync() calls
+                                   */
+
+  window = meta_window_new_shared (display,
+                                   scr,
+                                   META_WINDOW_CLIENT_TYPE_WAYLAND,
+                                   surface,
+                                   None,
+                                   TRUE,
+                                   WithdrawnState,
+                                   META_COMP_EFFECT_NONE,
+                                   &attrs);
+
+  meta_error_trap_pop (display); /* pop the XSync()-reducing trap */
+  meta_display_ungrab (display);
+
+  /* XXX: Maybe this could be called in meta_window_new_shared() but
+   * before splitting the X11 specific code out it came after the
+   * meta_display_ungrab() and we wanted to minimize the risk of
+   * breaking something.
+   */
+  display_notify_window (window->display, window);
+
+  return window;
+}
+
+MetaWindow*
+meta_window_new_with_attrs (MetaDisplay       *display,
+                            Window             xwindow,
+                            gboolean           must_be_viewable,
+                            MetaCompEffect     effect,
+                            XWindowAttributes *attrs)
+{
+  MetaScreen *screen = NULL;
+  GSList *tmp;
+  gulong existing_wm_state;
+  MetaWindow *window;
+  gulong event_mask;
+
+  meta_verbose ("Attempting to manage 0x%lx\n", xwindow);
+
+  if (meta_display_xwindow_is_a_no_focus_window (display, xwindow))
+    {
+      meta_verbose ("Not managing no_focus_window 0x%lx\n",
+                    xwindow);
+      return NULL;
+    }
+
+  for (tmp = display->screens; tmp != NULL; tmp = tmp->next)
+    {
+      MetaScreen *scr = tmp->data;
+
+      if (scr->xroot == attrs->root)
+        {
+          screen = tmp->data;
+          break;
+        }
+    }
+
+  g_assert (screen);
+
+  /* A black list of override redirect windows that we don't need to manage: */
+  if (attrs->override_redirect &&
+      (xwindow == screen->no_focus_window ||
+       xwindow == screen->flash_window ||
+       xwindow == screen->wm_sn_selection_window ||
+       attrs->class == InputOnly ||
+       /* any windows created via meta_create_offscreen_window: */
+       (attrs->x == -100 && attrs->y == -100
+	&& attrs->width == 1 && attrs->height == 1) ||
+       xwindow == screen->wm_cm_selection_window ||
+       xwindow == screen->guard_window ||
+       (display->compositor &&
+        xwindow == XCompositeGetOverlayWindow (display->xdisplay,
+					       screen->xroot)
+       )
+      )
+     ) {
+    meta_verbose ("Not managing our own windows\n");
+    return NULL;
+  }
+
+  if (maybe_filter_xwindow (display, xwindow, must_be_viewable, attrs))
+    {
+      meta_verbose ("Not managing filtered window\n");
+      return NULL;
+    }
+
+  /* Grab server */
+  meta_display_grab (display);
+  meta_error_trap_push (display); /* Push a trap over all of window
+                                   * creation, to reduce XSync() calls
+                                   */
+
+  existing_wm_state = WithdrawnState;
+  if (must_be_viewable && attrs->map_state != IsViewable)
+    {
+      /* Only manage if WM_STATE is IconicState or NormalState */
+      gulong state;
+
+      /* WM_STATE isn't a cardinal, it's type WM_STATE, but is an int */
+      if (!(meta_prop_get_cardinal_with_atom_type (display, xwindow,
+                                                   display->atom_WM_STATE,
+                                                   display->atom_WM_STATE,
+                                                   &state) &&
+            (state == IconicState || state == NormalState)))
+        {
+          meta_verbose ("Deciding not to manage unmapped or unviewable window 0x%lx\n", xwindow);
+          meta_error_trap_pop (display);
+          meta_display_ungrab (display);
+          return NULL;
+        }
+
+      existing_wm_state = state;
+      meta_verbose ("WM_STATE of %lx = %s\n", xwindow,
+                    wm_state_to_string (existing_wm_state));
+    }
+
+  meta_error_trap_push_with_return (display);
+
+  /*
+   * XAddToSaveSet can only be called on windows created by a different
+   * client.  with Mutter we want to be able to create manageable windows
+   * from within the process (such as a dummy desktop window), so we do not
+   * want this call failing to prevent the window from being managed -- wrap
+   * it in its own error trap (we use the _with_return() version here to
+   * ensure that XSync() is done on the pop, otherwise the error will not
+   * get caught).
+   */
+  meta_error_trap_push_with_return (display);
+  XAddToSaveSet (display->xdisplay, xwindow);
+  meta_error_trap_pop_with_return (display);
+
+  event_mask = PropertyChangeMask | ColormapChangeMask;
+  if (attrs->override_redirect)
+    event_mask |= StructureNotifyMask;
+
+  /* If the window is from this client (a menu, say) we need to augment
+   * the event mask, not replace it. For windows from other clients,
+   * attrs->your_event_mask will be empty at this point.
+   */
+  XSelectInput (display->xdisplay, xwindow, attrs->your_event_mask | event_mask);
+
+    {
+      unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
+      XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
+
+      meta_core_add_old_event_mask (display->xdisplay, xwindow, &mask);
+
+      XISetMask (mask.mask, XI_Enter);
+      XISetMask (mask.mask, XI_Leave);
+      XISetMask (mask.mask, XI_FocusIn);
+      XISetMask (mask.mask, XI_FocusOut);
+
+      XISelectEvents (display->xdisplay, xwindow, &mask, 1);
+    }
+
+  /* Get rid of any borders */
+  if (attrs->border_width != 0)
+    XSetWindowBorderWidth (display->xdisplay, xwindow, 0);
+
+  /* Get rid of weird gravities */
+  if (attrs->win_gravity != NorthWestGravity)
+    {
+      XSetWindowAttributes set_attrs;
+
+      set_attrs.win_gravity = NorthWestGravity;
+
+      XChangeWindowAttributes (display->xdisplay,
+                               xwindow,
+                               CWWinGravity,
+                               &set_attrs);
+    }
+
+  if (meta_error_trap_pop_with_return (display) != Success)
+    {
+      meta_verbose ("Window 0x%lx disappeared just as we tried to manage it\n",
+                    xwindow);
+      meta_error_trap_pop (display);
+      meta_display_ungrab (display);
+      return NULL;
+    }
+
+  window = meta_window_new_shared (display,
+                                   screen,
+                                   META_WINDOW_CLIENT_TYPE_X11,
+                                   NULL,
+                                   xwindow,
+                                   must_be_viewable,
+                                   existing_wm_state,
+                                   effect,
+                                   attrs);
+
+  meta_error_trap_pop (display); /* pop the XSync()-reducing trap */
+  meta_display_ungrab (display);
+
+  /* XXX: Maybe this could be called in meta_window_new_shared() but
+   * before splitting the X11 specific code out it came after the
+   * meta_display_ungrab() and we wanted to minimize the risk of
+   * breaking something.
+   */
+  display_notify_window (display, window);

  return window;
 }
@ -1682,6 +1784,16 @@ meta_window_unmanage (MetaWindow  *window,

  meta_verbose ("Unmanaging 0x%lx\n", window->xwindow);

+  if (window->client_type == META_WINDOW_CLIENT_TYPE_WAYLAND)
+    {
+      MetaStackWindow stack_window;
+      stack_window.any.type = META_WINDOW_CLIENT_TYPE_WAYLAND;
+      stack_window.wayland.meta_window = window;
+      meta_stack_tracker_record_remove (window->screen->stack_tracker,
+                                        &stack_window,
+                                        0);
+    }
+
  if (window->display->compositor)
    {
      if (window->visible_to_compositor)
@ -1888,48 +2000,53 @@ meta_window_unmanage (MetaWindow  *window,
  meta_display_ungrab_window_buttons (window->display, window->xwindow);
  meta_display_ungrab_focus_window_button (window->display, window);

-  meta_display_unregister_x_window (window->display, window->xwindow);
-
-
-  meta_error_trap_push (window->display);
-
-  /* Put back anything we messed up */
-  if (window->border_width != 0)
-    XSetWindowBorderWidth (window->display->xdisplay,
-                           window->xwindow,
-                           window->border_width);
-
-  /* No save set */
-  XRemoveFromSaveSet (window->display->xdisplay,
-                      window->xwindow);
-
-  /* Even though the window is now unmanaged, we can't unselect events. This
-   * window might be a window from this process, like a GdkMenu, in
-   * which case it will have pointer events and so forth selected
-   * for it by GDK. There's no way to disentangle those events from the events
-   * we've selected. Even for a window from a different X client,
-   * GDK could also have selected events for it for IPC purposes, so we
-   * can't unselect in that case either.
-   *
-   * Similarly, we can't unselected for events on window->user_time_window.
-   * It might be our own GDK focus window, or it might be a window that a
-   * different client is using for multiple different things:
-   * _NET_WM_USER_TIME_WINDOW and IPC, perhaps.
-   */
-
-  if (window->user_time_window != None)
+  if (window->client_type == META_WINDOW_CLIENT_TYPE_X11)
    {
-      meta_display_unregister_x_window (window->display,
-                                        window->user_time_window);
-      window->user_time_window = None;
-    }
+      meta_display_unregister_x_window (window->display, window->xwindow);
+
+      meta_error_trap_push (window->display);
+
+      /* Put back anything we messed up */
+      if (window->border_width != 0)
+        XSetWindowBorderWidth (window->display->xdisplay,
+                               window->xwindow,
+                               window->border_width);
+
+      /* No save set */
+      XRemoveFromSaveSet (window->display->xdisplay,
+                          window->xwindow);
+
+      /* Even though the window is now unmanaged, we can't unselect events. This
+       * window might be a window from this process, like a GdkMenu, in
+       * which case it will have pointer events and so forth selected
+       * for it by GDK. There's no way to disentangle those events from the events
+       * we've selected. Even for a window from a different X client,
+       * GDK could also have selected events for it for IPC purposes, so we
+       * can't unselect in that case either.
+       *
+       * Similarly, we can't unselected for events on window->user_time_window.
+       * It might be our own GDK focus window, or it might be a window that a
+       * different client is using for multiple different things:
+       * _NET_WM_USER_TIME_WINDOW and IPC, perhaps.
+       */
+
+      if (window->user_time_window != None)
+        {
+          meta_display_unregister_x_window (window->display,
+                                            window->user_time_window);
+          window->user_time_window = None;
+        }

 #ifdef HAVE_SHAPE
-  if (META_DISPLAY_HAS_SHAPE (window->display))
-    XShapeSelectInput (window->display->xdisplay, window->xwindow, NoEventMask);
+      if (META_DISPLAY_HAS_SHAPE (window->display))
+        XShapeSelectInput (window->display->xdisplay, window->xwindow, NoEventMask);
 #endif

-  meta_error_trap_pop (window->display);
+      meta_error_trap_pop (window->display);
+    }
+
+  if (window->surface)
+    meta_wayland_surface_free (window->surface);

  meta_prefs_remove_listener (prefs_changed_callback, window);

@ -2108,10 +2225,14 @@ set_net_wm_state (MetaWindow *window)

  if (window->fullscreen)
    {
-      data[0] = window->fullscreen_monitors[0];
-      data[1] = window->fullscreen_monitors[1];
-      data[2] = window->fullscreen_monitors[2];
-      data[3] = window->fullscreen_monitors[3];
+      data[0] = meta_screen_monitor_index_to_xinerama_index (window->screen,
+                                                             window->fullscreen_monitors[0]);
+      data[1] = meta_screen_monitor_index_to_xinerama_index (window->screen,
+                                                             window->fullscreen_monitors[1]);
+      data[2] = meta_screen_monitor_index_to_xinerama_index (window->screen,
+                                                             window->fullscreen_monitors[2]);
+      data[3] = meta_screen_monitor_index_to_xinerama_index (window->screen,
+                                                             window->fullscreen_monitors[3]);

      meta_verbose ("Setting _NET_WM_FULLSCREEN_MONITORS\n");
      meta_error_trap_push (window->display);
@ -4785,7 +4906,8 @@ meta_window_update_for_monitors_changed (MetaWindow *window)
    {
      MetaMonitorInfo *info = &window->screen->monitor_infos[i];

-      if (info->output == old->output)
+      if (info->output_id != 0 &&
+          info->output_id == old->output_id)
        {
          new = info;
          break;
@ -5826,7 +5948,7 @@ meta_window_get_outer_rect (const MetaWindow *window,

      if (window->has_custom_frame_extents)
        {
-          GtkBorder *extents = &window->custom_frame_extents;
+          const GtkBorder *extents = &window->custom_frame_extents;
          rect->x += extents->left;
          rect->y += extents->top;
          rect->width -= extents->left + extents->right;
@ -7130,10 +7252,14 @@ meta_window_client_message (MetaWindow *window,
      meta_verbose ("_NET_WM_FULLSCREEN_MONITORS request for window '%s'\n",
                    window->desc);

-      top = event->xclient.data.l[0];
-      bottom = event->xclient.data.l[1];
-      left = event->xclient.data.l[2];
-      right = event->xclient.data.l[3];
+      top = meta_screen_xinerama_index_to_monitor_index (window->screen,
+                                                         event->xclient.data.l[0]);
+      bottom = meta_screen_xinerama_index_to_monitor_index (window->screen,
+                                                            event->xclient.data.l[1]);
+      left = meta_screen_xinerama_index_to_monitor_index (window->screen,
+                                                          event->xclient.data.l[2]);
+      right = meta_screen_xinerama_index_to_monitor_index (window->screen,
+                                                           event->xclient.data.l[3]);
      /* source_indication = event->xclient.data.l[4]; */

      meta_window_update_fullscreen_monitors (window, top, bottom, left, right);
@ -7628,14 +7754,25 @@ meta_window_update_net_wm_type (MetaWindow *window)
 }

 void
-meta_window_update_opaque_region (MetaWindow *window)
+meta_window_set_opaque_region (MetaWindow     *window,
+                               cairo_region_t *region)
+{
+  g_clear_pointer (&window->opaque_region, cairo_region_destroy);
+
+  if (region != NULL)
+    window->opaque_region = cairo_region_reference (region);
+
+  if (window->display->compositor)
+    meta_compositor_window_shape_changed (window->display->compositor, window);
+}
+
+void
+meta_window_update_opaque_region_x11 (MetaWindow *window)
 {
  cairo_region_t *opaque_region = NULL;
  gulong *region = NULL;
  int nitems;

-  g_clear_pointer (&window->opaque_region, cairo_region_destroy);
-
  if (meta_prop_get_cardinal_list (window->display,
                                   window->xwindow,
                                   window->display->atom__NET_WM_OPAQUE_REGION,
@ -7678,13 +7815,193 @@ meta_window_update_opaque_region (MetaWindow *window)
    }

 out:
-  window->opaque_region = opaque_region;
  meta_XFree (region);

+  meta_window_set_opaque_region (window, opaque_region);
+  cairo_region_destroy (opaque_region);
+}
+
+static cairo_region_t *
+region_create_from_x_rectangles (const XRectangle *rects,
+                                 int n_rects)
+{
+  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;
+      cairo_rects[i].y = rects[i].y;
+      cairo_rects[i].width = rects[i].width;
+      cairo_rects[i].height = rects[i].height;
+    }
+
+  return cairo_region_create_rectangles (cairo_rects, n_rects);
+}
+
+void
+meta_window_set_input_region (MetaWindow     *window,
+                              cairo_region_t *region)
+{
+  g_clear_pointer (&window->input_region, cairo_region_destroy);
+
+  if (region != NULL)
+    window->input_region = cairo_region_reference (region);
+
  if (window->display->compositor)
    meta_compositor_window_shape_changed (window->display->compositor, window);
 }

+void
+meta_window_update_input_region_x11 (MetaWindow *window)
+{
+  cairo_region_t *region = NULL;
+
+#ifdef HAVE_SHAPE
+  if (META_DISPLAY_HAS_SHAPE (window->display))
+    {
+      /* Translate the set of XShape rectangles that we
+       * get from the X server to a cairo_region. */
+      XRectangle *rects = NULL;
+      int n_rects, ordering;
+
+      int x_bounding, y_bounding, x_clip, y_clip;
+      unsigned w_bounding, h_bounding, w_clip, h_clip;
+      int bounding_shaped, clip_shaped;
+
+      meta_error_trap_push (window->display);
+      XShapeQueryExtents (window->display->xdisplay, window->xwindow,
+                          &bounding_shaped, &x_bounding, &y_bounding,
+                          &w_bounding, &h_bounding,
+                          &clip_shaped, &x_clip, &y_clip,
+                          &w_clip, &h_clip);
+
+      rects = XShapeGetRectangles (window->display->xdisplay,
+                                   window->xwindow,
+                                   ShapeInput,
+                                   &n_rects,
+                                   &ordering);
+      meta_error_trap_pop (window->display);
+
+      /* XXX: The x shape extension doesn't provide a way to only test if an
+       * input shape has been specified, so we have to query and throw away the
+       * rectangles. */
+      if (rects)
+        {
+          if (n_rects > 1 ||
+              (n_rects == 1 &&
+               (rects[0].x != x_bounding ||
+                rects[1].y != y_bounding ||
+                rects[2].width != w_bounding ||
+                rects[3].height != h_bounding)))
+            region = region_create_from_x_rectangles (rects, n_rects);
+
+          XFree (rects);
+        }
+    }
+#endif /* HAVE_SHAPE */
+
+  if (region != NULL)
+    {
+      cairo_rectangle_int_t client_area;
+
+      client_area.x = 0;
+      client_area.y = 0;
+      client_area.width = window->rect.width;
+      client_area.height = window->rect.height;
+
+      /* The shape we get back from the client may have coordinates
+       * outside of the frame. The X SHAPE Extension requires that
+       * the overall shape the client provides never exceeds the
+       * "bounding rectangle" of the window -- the shape that the
+       * window would have gotten if it was unshaped. In our case,
+       * this is simply the client area.
+       */
+      cairo_region_intersect_rectangle (region, &client_area);
+    }
+
+  meta_window_set_input_region (window, region);
+  cairo_region_destroy (region);
+}
+
+void
+meta_window_set_shape_region (MetaWindow     *window,
+                              cairo_region_t *region)
+{
+  g_clear_pointer (&window->shape_region, cairo_region_destroy);
+
+  if (region != NULL)
+    window->shape_region = cairo_region_reference (region);
+
+  if (window->display->compositor)
+    meta_compositor_window_shape_changed (window->display->compositor, window);
+}
+
+void
+meta_window_update_shape_region_x11 (MetaWindow *window)
+{
+  cairo_region_t *region = NULL;
+
+#ifdef HAVE_SHAPE
+  if (META_DISPLAY_HAS_SHAPE (window->display))
+    {
+      /* Translate the set of XShape rectangles that we
+       * get from the X server to a cairo_region. */
+      XRectangle *rects = NULL;
+      int n_rects, ordering;
+
+      int x_bounding, y_bounding, x_clip, y_clip;
+      unsigned w_bounding, h_bounding, w_clip, h_clip;
+      int bounding_shaped, clip_shaped;
+
+      meta_error_trap_push (window->display);
+      XShapeQueryExtents (window->display->xdisplay, window->xwindow,
+                          &bounding_shaped, &x_bounding, &y_bounding,
+                          &w_bounding, &h_bounding,
+                          &clip_shaped, &x_clip, &y_clip,
+                          &w_clip, &h_clip);
+
+      if (bounding_shaped)
+        {
+          rects = XShapeGetRectangles (window->display->xdisplay,
+                                       window->xwindow,
+                                       ShapeBounding,
+                                       &n_rects,
+                                       &ordering);
+        }
+      meta_error_trap_pop (window->display);
+
+      if (rects)
+        {
+          region = region_create_from_x_rectangles (rects, n_rects);
+          XFree (rects);
+        }
+    }
+#endif /* HAVE_SHAPE */
+
+  if (region != NULL)
+    {
+      cairo_rectangle_int_t client_area;
+
+      client_area.x = 0;
+      client_area.y = 0;
+      client_area.width = window->rect.width;
+      client_area.height = window->rect.height;
+
+      /* The shape we get back from the client may have coordinates
+       * outside of the frame. The X SHAPE Extension requires that
+       * the overall shape the client provides never exceeds the
+       * "bounding rectangle" of the window -- the shape that the
+       * window would have gotten if it was unshaped. In our case,
+       * this is simply the client area.
+       */
+      cairo_region_intersect_rectangle (region, &client_area);
+    }
+
+  meta_window_set_shape_region (window, region);
+  cairo_region_destroy (region);
+}
+
 static void
 redraw_icon (MetaWindow *window)
 {
@ -8386,10 +8703,13 @@ recalc_window_features (MetaWindow *window)

    case META_WINDOW_DIALOG:
    case META_WINDOW_MODAL_DIALOG:
-      /* only skip taskbar if we have a real transient parent */
+      /* only skip taskbar if we have a real transient parent
+         (and ignore the application hints) */
      if (window->xtransient_for != None &&
          window->xtransient_for != window->screen->xroot)
        window->skip_taskbar = TRUE;
+      else
+        window->skip_taskbar = FALSE;
      break;

    case META_WINDOW_NORMAL:
--- a/src/idle-monitor.xml
+++ b/src/idle-monitor.xml
@ -0,0 +1,35 @@
+<!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.IdleMonitor:
+      @short_description: idle monitor interface
+
+      This interface is used by gnome-desktop to implement
+      user activity monitoring.
+  -->
+
+  <interface name="org.gnome.Mutter.IdleMonitor">
+    <method name="GetIdletime">
+      <arg name="idletime" direction="out" type="t"/>
+    </method>
+
+    <method name="AddIdleWatch">
+      <arg name="interval" direction="in" type="t" />
+      <arg name="id" direction="out" type="u" />
+    </method>
+
+    <method name="AddUserActiveWatch">
+      <arg name="id" direction="out" type="u" />
+    </method>
+
+    <method name="RemoveWatch">
+      <arg name="id" direction="in" type="u" />
+    </method>
+
+    <signal name="WatchFired">
+      <arg name="id" direction="out" type="u" />
+    </signal>
+  </interface>
+</node>
--- a/src/libmutter-wayland.pc.in
+++ b/src/libmutter-wayland.pc.in
@ -0,0 +1,18 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+girdir=@libdir@/mutter-wayland
+typelibdir=@libdir@/mutter-wayland
+
+mutter_major_version=@MUTTER_MAJOR_VERSION@
+mutter_minor_version=@MUTTER_MINOR_VERSION@
+mutter_micro_version=@MUTTER_MICRO_VERSION@
+mutter_plugin_api_version=@MUTTER_PLUGIN_API_VERSION@
+
+Name: libmutter-wayland
+Description: Mutter window manager library (Wayland branch)
+Requires: gsettings-desktop-schemas gtk+-3.0 @CLUTTER_PACKAGE@ x11 wayland-server
+Version: @VERSION@
+Libs: -L${libdir} -lmutter-wayland
+Cflags: -I${includedir}/mutter-wayland -DMUTTER_MAJOR_VERSION=${mutter_major_version} -DMUTTER_MINOR_VERSION=${mutter_minor_version} -DMUTTER_MICRO_VERSION=${mutter_micro_version} -DMUTTER_PLUGIN_API_VERSION=${mutter_plugin_api_version}
--- a/src/libmutter.pc.in
+++ b/src/libmutter.pc.in
@ -1,18 +0,0 @@
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-libdir=@libdir@
-includedir=@includedir@
-girdir=@libdir@/mutter
-typelibdir=@libdir@/mutter
-
-mutter_major_version=@MUTTER_MAJOR_VERSION@
-mutter_minor_version=@MUTTER_MINOR_VERSION@
-mutter_micro_version=@MUTTER_MICRO_VERSION@
-mutter_plugin_api_version=@MUTTER_PLUGIN_API_VERSION@
-
-Name: libmutter
-Description: Mutter window manager library
-Requires: gsettings-desktop-schemas gtk+-3.0 @CLUTTER_PACKAGE@ x11
-Version: @VERSION@
-Libs: -L${libdir} -lmutter
-Cflags: -I${includedir}/mutter -DMUTTER_MAJOR_VERSION=${mutter_major_version} -DMUTTER_MINOR_VERSION=${mutter_minor_version} -DMUTTER_MICRO_VERSION=${mutter_micro_version} -DMUTTER_PLUGIN_API_VERSION=${mutter_plugin_api_version}
--- a/src/meta/atomnames.h
+++ b/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 +80,7 @@ item(MULTIPLE)
 item(TIMESTAMP)
 item(VERSION)
 item(ATOM_PAIR)
+item(BACKLIGHT)

 /* Oddities: These are used, and we need atoms for them,
 * but when we need all _NET_WM hints (i.e. when we're making
--- a/src/meta/meta-cursor-tracker.h
+++ b/src/meta/meta-cursor-tracker.h
@ -0,0 +1,50 @@
+/* -*- 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>
+ */
+
+#ifndef META_CURSOR_TRACKER_H
+#define META_CURSOR_TRACKER_H
+
+#include <glib-object.h>
+#include <meta/types.h>
+#include <meta/workspace.h>
+#include <cogl/cogl.h>
+
+#define META_TYPE_CURSOR_TRACKER            (meta_cursor_tracker_get_type ())
+#define META_CURSOR_TRACKER(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_CURSOR_TRACKER, MetaCursorTracker))
+#define META_CURSOR_TRACKER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_CURSOR_TRACKER, MetaCursorTrackerClass))
+#define META_IS_CURSOR_TRACKER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_CURSOR_TRACKER))
+#define META_IS_CURSOR_TRACKER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_CURSOR_TRACKER))
+#define META_CURSOR_TRACKER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_CURSOR_TRACKER, MetaCursorTrackerClass))
+
+typedef struct _MetaCursorTrackerClass   MetaCursorTrackerClass;
+
+GType meta_cursor_tracker_get_type (void);
+
+MetaCursorTracker *meta_cursor_tracker_get_for_screen (MetaScreen *screen);
+
+void           meta_cursor_tracker_get_hot    (MetaCursorTracker *tracker,
+                                               int               *x,
+                                               int               *y);
+CoglTexture   *meta_cursor_tracker_get_sprite (MetaCursorTracker *tracker);
+
+#endif
--- a/src/meta/meta-idle-monitor.h
+++ b/src/meta/meta-idle-monitor.h
@ -0,0 +1,62 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright 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_IDLE_MONITOR_H
+#define META_IDLE_MONITOR_H
+
+#include <glib-object.h>
+#include <meta/types.h>
+
+#define META_TYPE_IDLE_MONITOR            (meta_idle_monitor_get_type ())
+#define META_IDLE_MONITOR(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_IDLE_MONITOR, MetaIdleMonitor))
+#define META_IDLE_MONITOR_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_IDLE_MONITOR, MetaIdleMonitorClass))
+#define META_IS_IDLE_MONITOR(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_IDLE_MONITOR))
+#define META_IS_IDLE_MONITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_IDLE_MONITOR))
+#define META_IDLE_MONITOR_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_IDLE_MONITOR, MetaIdleMonitorClass))
+
+typedef struct _MetaIdleMonitor        MetaIdleMonitor;
+typedef struct _MetaIdleMonitorClass   MetaIdleMonitorClass;
+
+GType meta_idle_monitor_get_type (void);
+
+typedef void (*MetaIdleMonitorWatchFunc) (MetaIdleMonitor *monitor,
+                                          guint            watch_id,
+                                          gpointer         user_data);
+
+MetaIdleMonitor *meta_idle_monitor_get_core (void);
+MetaIdleMonitor *meta_idle_monitor_get_for_device (int device_id);
+
+guint         meta_idle_monitor_add_idle_watch        (MetaIdleMonitor          *monitor,
+						       guint64                   interval_msec,
+						       MetaIdleMonitorWatchFunc  callback,
+						       gpointer                  user_data,
+						       GDestroyNotify            notify);
+
+guint         meta_idle_monitor_add_user_active_watch (MetaIdleMonitor          *monitor,
+						       MetaIdleMonitorWatchFunc  callback,
+						       gpointer                  user_data,
+						       GDestroyNotify            notify);
+
+void          meta_idle_monitor_remove_watch          (MetaIdleMonitor          *monitor,
+						       guint                     id);
+gint64        meta_idle_monitor_get_idletime          (MetaIdleMonitor          *monitor);
+
+#endif
--- a/src/meta/meta-plugin.h
+++ b/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
@ -376,8 +396,6 @@ typedef enum {

 gboolean
 meta_plugin_begin_modal (MetaPlugin      *plugin,
-                         Window           grab_window,
-                         Cursor           cursor,
                         MetaModalOptions options,
                         guint32          timestamp);

--- a/src/meta/meta-shaped-texture.h
+++ b/src/meta/meta-shaped-texture.h
@ -64,8 +64,6 @@ struct _MetaShapedTexture

 GType meta_shaped_texture_get_type (void) G_GNUC_CONST;

-ClutterActor *meta_shaped_texture_new (void);
-
 void meta_shaped_texture_set_create_mipmaps (MetaShapedTexture *stex,
 					     gboolean           create_mipmaps);

@ -75,18 +73,20 @@ void meta_shaped_texture_update_area (MetaShapedTexture *stex,
                                      int                width,
                                      int                height);

-void meta_shaped_texture_set_pixmap (MetaShapedTexture *stex,
-                                     Pixmap             pixmap);
-
 CoglTexture * meta_shaped_texture_get_texture (MetaShapedTexture *stex);

 void meta_shaped_texture_set_mask_texture (MetaShapedTexture *stex,
                                           CoglTexture       *mask_texture);
+void meta_shaped_texture_set_input_shape_region (MetaShapedTexture *stex,
+                                                 cairo_region_t    *shape_region);

 /* 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);

--- a/src/meta/types.h
+++ b/src/meta/types.h
@ -38,5 +38,6 @@ typedef struct _MetaWorkspace   MetaWorkspace;
 */
 typedef struct _MetaGroup       MetaGroup;
 typedef struct _MetaKeyBinding  MetaKeyBinding;
+typedef struct _MetaCursorTracker MetaCursorTracker;

 #endif
--- a/src/meta/util.h
+++ b/src/meta/util.h
@ -37,6 +37,8 @@ void     meta_set_debugging (gboolean setting);
 gboolean meta_is_syncing (void);
 void     meta_set_syncing (gboolean setting);
 void     meta_set_replace_current_wm (gboolean setting);
+gboolean meta_is_wayland_compositor (void);
+void     meta_set_is_wayland_compositor (gboolean setting);

 void meta_debug_spew_real (const char *format,
                           ...) G_GNUC_PRINTF (1, 2);
@ -100,7 +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,
--- a/src/meta/window.h
+++ b/src/meta/window.h
@ -81,6 +81,16 @@ typedef enum
  META_MAXIMIZE_VERTICAL   = 1 << 1
 } MetaMaximizeFlags;

+/**
+ * MetaWindowClientType:
+ * @META_WINDOW_CLIENT_TYPE_WAYLAND: A Wayland based window
+ * @META_WINDOW_CLIENT_TYPE_X11: An X11 based window
+ */
+typedef enum {
+  META_WINDOW_CLIENT_TYPE_WAYLAND,
+  META_WINDOW_CLIENT_TYPE_X11
+} MetaWindowClientType;
+
 #define META_TYPE_WINDOW            (meta_window_get_type ())
 #define META_WINDOW(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_WINDOW, MetaWindow))
 #define META_WINDOW_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_WINDOW, MetaWindowClass))
--- a/src/mutter-plugins.pc.in
+++ b/src/mutter-plugins.pc.in
@ -1,17 +0,0 @@
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-libdir=@libdir@
-includedir=@includedir@
-plugindir=@MUTTER_PLUGIN_DIR@
-libgnome_serverdir=@libexecdir@
-mutter_major_version=@MUTTER_MAJOR_VERSION@
-mutter_minor_version=@MUTTER_MINOR_VERSION@
-mutter_micro_version=@MUTTER_MICRO_VERSION@
-mutter_plugin_api_version=@MUTTER_PLUGIN_API_VERSION@
-
-Name: mutter-plugins
-Description: Dev parameters for mutter plugins
-Requires: @CLUTTER_PACKAGE@
-Version: @VERSION@
-Libs: @CLUTTER_LIBS@
-Cflags: @CLUTTER_CFLAGS@ -DWITH_CLUTTER -I${includedir}/mutter/mutter-private -DMUTTER_MAJOR_VERSION=${mutter_major_version} -DMUTTER_MINOR_VERSION=${mutter_minor_version} -DMUTTER_MICRO_VERSION=${mutter_micro_version} -DMUTTER_PLUGIN_API_VERSION=${mutter_plugin_api_version} -DMUTTER_PLUGIN_DIR=\"${plugindir}\"
--- a/src/mutter-wayland.desktop.in
+++ b/src/mutter-wayland.desktop.in
@ -1,7 +1,7 @@
 [Desktop Entry]
 Type=Application
-_Name=Mutter
-Exec=mutter
+_Name=Mutter (wayland compositor)
+Exec=mutter-launch -- mutter --nested
 NoDisplay=true
 # name of loadable control center module
 X-GNOME-WMSettingsModule=metacity
@ -12,6 +12,5 @@ X-GnomeWMSettingsLibrary=metacity
 X-GNOME-Bugzilla-Bugzilla=GNOME
 X-GNOME-Bugzilla-Product=mutter
 X-GNOME-Bugzilla-Component=general
-X-GNOME-Autostart-Phase=WindowManager
-X-GNOME-Provides=windowmanager
+X-GNOME-Autostart-Phase=DisplayServer
 X-GNOME-Autostart-Notify=true
--- a/src/mutter-wm.desktop.in
+++ b/src/mutter-wm.desktop.in
@ -1,20 +0,0 @@
-[Desktop Entry]
-Type=Application
-_Name=Mutter
-Exec=mutter
-# name of loadable control center module
-X-GNOME-WMSettingsModule=metacity
-# name we put on the WM spec check window
-X-GNOME-WMName=Mutter
-# back compat only 
-X-GnomeWMSettingsLibrary=metacity
-X-GNOME-Bugzilla-Bugzilla=GNOME
-X-GNOME-Bugzilla-Product=mutter
-X-GNOME-Bugzilla-Component=general
-X-GNOME-Autostart-Phase=WindowManager
-X-GNOME-Provides=windowmanager
-X-GNOME-Autostart-Notify=true
-
-[Window Manager]
-SessionManaged=true
-
--- a/src/ui/ui.c
+++ b/src/ui/ui.c
@ -56,6 +56,8 @@ struct _MetaUI
 void
 meta_ui_init (void)
 {
+  gdk_set_allowed_backends ("x11");
+
  if (!gtk_init_check (NULL, NULL))
    meta_fatal ("Unable to open X display %s\n", XDisplayName (NULL));
 }
--- a/src/wayland/meta-wayland-data-device.c
+++ b/src/wayland/meta-wayland-data-device.c
@ -0,0 +1,548 @@
+/*
+ * Copyright © 2011 Kristian Høgsberg
+ *
+ * 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.
+ */
+
+/* The file is based on src/data-device.c from Weston */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <glib.h>
+
+#include "meta-wayland-data-device.h"
+#include "meta-wayland-seat.h"
+#include "meta-wayland-pointer.h"
+
+static void
+data_offer_accept (struct wl_client *client,
+                   struct wl_resource *resource,
+                   guint32 serial,
+                   const char *mime_type)
+{
+  MetaWaylandDataOffer *offer = wl_resource_get_user_data (resource);
+
+  /* FIXME: Check that client is currently focused by the input
+   * device that is currently dragging this data source.  Should
+   * this be a wl_data_device request? */
+
+  if (offer->source)
+    offer->source->accept (offer->source, serial, mime_type);
+}
+
+static void
+data_offer_receive (struct wl_client *client, struct wl_resource *resource,
+                    const char *mime_type, int32_t fd)
+{
+  MetaWaylandDataOffer *offer = wl_resource_get_user_data (resource);
+
+  if (offer->source)
+    offer->source->send (offer->source, mime_type, fd);
+  else
+    close (fd);
+}
+
+static void
+data_offer_destroy (struct wl_client *client, struct wl_resource *resource)
+{
+  wl_resource_destroy (resource);
+}
+
+static const struct wl_data_offer_interface data_offer_interface = {
+  data_offer_accept,
+  data_offer_receive,
+  data_offer_destroy,
+};
+
+static void
+destroy_data_offer (struct wl_resource *resource)
+{
+  MetaWaylandDataOffer *offer = wl_resource_get_user_data (resource);
+
+  if (offer->source)
+    wl_list_remove (&offer->source_destroy_listener.link);
+  free (offer);
+}
+
+static void
+destroy_offer_data_source (struct wl_listener *listener, void *data)
+{
+  MetaWaylandDataOffer *offer;
+
+  offer = wl_container_of (listener, offer, source_destroy_listener);
+
+  offer->source = NULL;
+}
+
+static struct wl_resource *
+meta_wayland_data_source_send_offer (MetaWaylandDataSource *source,
+                                     struct wl_resource *target)
+{
+  MetaWaylandDataOffer *offer;
+  char **p;
+
+  offer = malloc (sizeof *offer);
+  if (offer == NULL)
+    return NULL;
+
+  offer->source = source;
+  offer->source_destroy_listener.notify = destroy_offer_data_source;
+
+  offer->resource = wl_client_add_object (wl_resource_get_client (target),
+                                          &wl_data_offer_interface,
+                                          &data_offer_interface,
+                                          0,
+                                          offer);
+  wl_resource_set_destructor (offer->resource, destroy_data_offer);
+  wl_resource_add_destroy_listener (source->resource,
+                                    &offer->source_destroy_listener);
+
+  wl_data_device_send_data_offer (target, offer->resource);
+
+  wl_array_for_each (p, &source->mime_types)
+    wl_data_offer_send_offer (offer->resource, *p);
+
+  return offer->resource;
+}
+
+static void
+data_source_offer (struct wl_client *client,
+                   struct wl_resource *resource, const char *type)
+{
+  MetaWaylandDataSource *source = wl_resource_get_user_data (resource);
+  char **p;
+
+  p = wl_array_add (&source->mime_types, sizeof *p);
+  if (p)
+    *p = strdup (type);
+  if (!p || !*p)
+    wl_resource_post_no_memory (resource);
+}
+
+static void
+data_source_destroy (struct wl_client *client, struct wl_resource *resource)
+{
+  wl_resource_destroy (resource);
+}
+
+static struct wl_data_source_interface data_source_interface = {
+  data_source_offer,
+  data_source_destroy
+};
+
+static void
+destroy_drag_focus (struct wl_listener *listener, void *data)
+{
+  MetaWaylandSeat *seat = wl_container_of (listener, seat, drag_focus_listener);
+
+  seat->drag_focus_resource = NULL;
+}
+
+static void
+drag_grab_focus (MetaWaylandPointerGrab *grab,
+                 MetaWaylandSurface *surface,
+                 wl_fixed_t x,
+                 wl_fixed_t y)
+{
+  MetaWaylandSeat *seat = wl_container_of (grab, seat, drag_grab);
+  struct wl_resource *resource, *offer = NULL;
+  struct wl_display *display;
+  guint32 serial;
+
+  if (seat->drag_focus_resource)
+    {
+      wl_data_device_send_leave (seat->drag_focus_resource);
+      wl_list_remove (&seat->drag_focus_listener.link);
+      seat->drag_focus_resource = NULL;
+      seat->drag_focus = NULL;
+    }
+
+  if (!surface)
+    return;
+
+  if (!seat->drag_data_source &&
+      wl_resource_get_client (surface->resource) != seat->drag_client)
+    return;
+
+  resource =
+    wl_resource_find_for_client (&seat->drag_resource_list,
+                                 wl_resource_get_client (surface->resource));
+  if (!resource)
+    return;
+
+  display = wl_client_get_display (wl_resource_get_client (resource));
+  serial = wl_display_next_serial (display);
+
+  if (seat->drag_data_source)
+    offer = meta_wayland_data_source_send_offer (seat->drag_data_source,
+                                                 resource);
+
+  wl_data_device_send_enter (resource, serial, surface->resource,
+                             x, y, offer);
+
+  seat->drag_focus = surface;
+  seat->drag_focus_listener.notify = destroy_drag_focus;
+  wl_resource_add_destroy_listener (resource, &seat->drag_focus_listener);
+  seat->drag_focus_resource = resource;
+  grab->focus = surface;
+}
+
+static void
+drag_grab_motion (MetaWaylandPointerGrab *grab,
+                  guint32 time, wl_fixed_t x, wl_fixed_t y)
+{
+  MetaWaylandSeat *seat = wl_container_of (grab, seat, drag_grab);
+
+  if (seat->drag_focus_resource)
+    wl_data_device_send_motion (seat->drag_focus_resource, time, x, y);
+}
+
+static void
+data_device_end_drag_grab (MetaWaylandSeat *seat)
+{
+  if (seat->drag_surface)
+    {
+      seat->drag_surface = NULL;
+      wl_signal_emit (&seat->drag_icon_signal, NULL);
+      wl_list_remove (&seat->drag_icon_listener.link);
+    }
+
+  drag_grab_focus (&seat->drag_grab, NULL,
+                   wl_fixed_from_int (0), wl_fixed_from_int (0));
+
+  meta_wayland_pointer_end_grab (&seat->pointer);
+
+  seat->drag_data_source = NULL;
+  seat->drag_client = NULL;
+}
+
+static void
+drag_grab_button (MetaWaylandPointerGrab *grab,
+                  guint32 time, guint32 button, guint32 state_w)
+{
+  MetaWaylandSeat *seat = wl_container_of (grab, seat, drag_grab);
+  enum wl_pointer_button_state state = state_w;
+
+  if (seat->drag_focus_resource &&
+      seat->pointer.grab_button == button &&
+      state == WL_POINTER_BUTTON_STATE_RELEASED)
+    wl_data_device_send_drop (seat->drag_focus_resource);
+
+  if (seat->pointer.button_count == 0 &&
+      state == WL_POINTER_BUTTON_STATE_RELEASED)
+    {
+      if (seat->drag_data_source)
+        wl_list_remove (&seat->drag_data_source_listener.link);
+      data_device_end_drag_grab (seat);
+    }
+}
+
+static const MetaWaylandPointerGrabInterface drag_grab_interface = {
+  drag_grab_focus,
+  drag_grab_motion,
+  drag_grab_button,
+};
+
+static void
+destroy_data_device_source (struct wl_listener *listener, void *data)
+{
+  MetaWaylandSeat *seat =
+    wl_container_of (listener, seat, drag_data_source_listener);
+
+  data_device_end_drag_grab (seat);
+}
+
+static void
+destroy_data_device_icon (struct wl_listener *listener, void *data)
+{
+  MetaWaylandSeat *seat =
+    wl_container_of (listener, seat, drag_icon_listener);
+
+  seat->drag_surface = NULL;
+}
+
+static void
+data_device_start_drag (struct wl_client *client,
+                        struct wl_resource *resource,
+                        struct wl_resource *source_resource,
+                        struct wl_resource *origin_resource,
+                        struct wl_resource *icon_resource, guint32 serial)
+{
+  MetaWaylandSeat *seat = wl_resource_get_user_data (resource);
+
+  /* FIXME: Check that client has implicit grab on the origin
+   * surface that matches the given time. */
+
+  /* FIXME: Check that the data source type array isn't empty. */
+
+  seat->drag_grab.interface = &drag_grab_interface;
+
+  seat->drag_client = client;
+  seat->drag_data_source = NULL;
+
+  if (source_resource)
+    {
+      seat->drag_data_source = wl_resource_get_user_data (source_resource);
+      seat->drag_data_source_listener.notify = destroy_data_device_source;
+      wl_resource_add_destroy_listener (source_resource,
+                                        &seat->drag_data_source_listener);
+    }
+
+  if (icon_resource)
+    {
+      seat->drag_surface = wl_resource_get_user_data (icon_resource);
+      seat->drag_icon_listener.notify = destroy_data_device_icon;
+      wl_resource_add_destroy_listener (icon_resource,
+                                        &seat->drag_icon_listener);
+      wl_signal_emit (&seat->drag_icon_signal, icon_resource);
+    }
+
+  meta_wayland_pointer_set_focus (&seat->pointer, NULL,
+                              wl_fixed_from_int (0),
+                              wl_fixed_from_int (0));
+  meta_wayland_pointer_start_grab (&seat->pointer, &seat->drag_grab);
+}
+
+static void
+destroy_selection_data_source (struct wl_listener *listener, void *data)
+{
+  MetaWaylandSeat *seat =
+    wl_container_of (listener, seat, selection_data_source_listener);
+  struct wl_resource *data_device;
+  struct wl_resource *focus = NULL;
+
+  seat->selection_data_source = NULL;
+
+  focus = seat->keyboard.focus_resource;
+
+  if (focus)
+    {
+      data_device =
+        wl_resource_find_for_client (&seat->drag_resource_list,
+                                     wl_resource_get_client (focus));
+      if (data_device)
+        wl_data_device_send_selection (data_device, NULL);
+    }
+
+  wl_signal_emit (&seat->selection_signal, seat);
+}
+
+void
+meta_wayland_seat_set_selection (MetaWaylandSeat *seat,
+                                 MetaWaylandDataSource *source,
+                                 guint32 serial)
+{
+  struct wl_resource *data_device, *offer;
+  struct wl_resource *focus = NULL;
+
+  if (seat->selection_data_source &&
+      seat->selection_serial - serial < UINT32_MAX / 2)
+    return;
+
+  if (seat->selection_data_source)
+    {
+      seat->selection_data_source->cancel (seat->selection_data_source);
+      wl_list_remove (&seat->selection_data_source_listener.link);
+      seat->selection_data_source = NULL;
+    }
+
+  seat->selection_data_source = source;
+  seat->selection_serial = serial;
+
+  focus = seat->keyboard.focus_resource;
+
+  if (focus)
+    {
+      data_device =
+        wl_resource_find_for_client (&seat->drag_resource_list,
+                                     wl_resource_get_client (focus));
+      if (data_device && source)
+        {
+          offer =
+            meta_wayland_data_source_send_offer (seat->selection_data_source,
+                                                 data_device);
+          wl_data_device_send_selection (data_device, offer);
+        }
+      else if (data_device)
+        {
+          wl_data_device_send_selection (data_device, NULL);
+        }
+    }
+
+  wl_signal_emit (&seat->selection_signal, seat);
+
+  if (source)
+    {
+      seat->selection_data_source_listener.notify =
+        destroy_selection_data_source;
+      wl_resource_add_destroy_listener (source->resource,
+                                        &seat->selection_data_source_listener);
+    }
+}
+
+static void
+data_device_set_selection (struct wl_client *client,
+                           struct wl_resource *resource,
+                           struct wl_resource *source_resource,
+                           guint32 serial)
+{
+  if (!source_resource)
+    return;
+
+  /* FIXME: Store serial and check against incoming serial here. */
+  meta_wayland_seat_set_selection (wl_resource_get_user_data (resource),
+                                   wl_resource_get_user_data (source_resource),
+                                   serial);
+}
+
+static const struct wl_data_device_interface data_device_interface = {
+  data_device_start_drag,
+  data_device_set_selection,
+};
+
+static void
+destroy_data_source (struct wl_resource *resource)
+{
+  MetaWaylandDataSource *source = wl_container_of (resource, source, resource);
+  char **p;
+
+  wl_array_for_each (p, &source->mime_types) free (*p);
+
+  wl_array_release (&source->mime_types);
+}
+
+static void
+client_source_accept (MetaWaylandDataSource *source,
+                      guint32 time, const char *mime_type)
+{
+  wl_data_source_send_target (source->resource, mime_type);
+}
+
+static void
+client_source_send (MetaWaylandDataSource *source,
+                    const char *mime_type, int32_t fd)
+{
+  wl_data_source_send_send (source->resource, mime_type, fd);
+  close (fd);
+}
+
+static void
+client_source_cancel (MetaWaylandDataSource *source)
+{
+  wl_data_source_send_cancelled (source->resource);
+}
+
+static void
+create_data_source (struct wl_client *client,
+                    struct wl_resource *resource, guint32 id)
+{
+  MetaWaylandDataSource *source;
+
+  source = malloc (sizeof *source);
+  if (source == NULL)
+    {
+      wl_resource_post_no_memory (resource);
+      return;
+    }
+
+  source->resource = wl_client_add_object (client,
+                                           &wl_data_source_interface,
+                                           &data_source_interface,
+                                           id,
+                                           source);
+  wl_resource_set_destructor (source->resource, destroy_data_source);
+
+  source->accept = client_source_accept;
+  source->send = client_source_send;
+  source->cancel = client_source_cancel;
+
+  wl_array_init (&source->mime_types);
+}
+
+static void
+unbind_data_device (struct wl_resource *resource)
+{
+  wl_list_remove (wl_resource_get_link (resource));
+}
+
+static void
+get_data_device (struct wl_client *client,
+                 struct wl_resource *manager_resource,
+                 guint32 id, struct wl_resource *seat_resource)
+{
+  MetaWaylandSeat *seat = wl_resource_get_user_data (seat_resource);
+  struct wl_resource *resource;
+
+  resource = wl_client_add_object (client, &wl_data_device_interface,
+                                   &data_device_interface, id, seat);
+
+  wl_list_insert (&seat->drag_resource_list, wl_resource_get_link (resource));
+  wl_resource_set_destructor (resource, unbind_data_device);
+}
+
+static const struct wl_data_device_manager_interface manager_interface = {
+  create_data_source,
+  get_data_device
+};
+
+static void
+bind_manager (struct wl_client *client,
+              void *data, guint32 version, guint32 id)
+{
+  wl_client_add_object (client, &wl_data_device_manager_interface,
+                        &manager_interface, id, NULL);
+}
+
+void
+meta_wayland_data_device_set_keyboard_focus (MetaWaylandSeat *seat)
+{
+  struct wl_resource *data_device, *focus, *offer;
+  MetaWaylandDataSource *source;
+
+  focus = seat->keyboard.focus_resource;
+  if (!focus)
+    return;
+
+  data_device = wl_resource_find_for_client (&seat->drag_resource_list,
+                                             wl_resource_get_client (focus));
+  if (!data_device)
+    return;
+
+  source = seat->selection_data_source;
+  if (source)
+    {
+      offer = meta_wayland_data_source_send_offer (source, data_device);
+      wl_data_device_send_selection (data_device, offer);
+    }
+}
+
+int
+meta_wayland_data_device_manager_init (struct wl_display *display)
+{
+  if (wl_display_add_global (display,
+                             &wl_data_device_manager_interface,
+                             NULL, bind_manager) == NULL)
+    return -1;
+
+  return 0;
+}
--- a/src/wayland/meta-wayland-data-device.h
+++ b/src/wayland/meta-wayland-data-device.h
@ -0,0 +1,42 @@
+/*
+ * Copyright © 2008 Kristian Høgsberg
+ *
+ * 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 __META_WAYLAND_DATA_DEVICE_H__
+#define __META_WAYLAND_DATA_DEVICE_H__
+
+#include <wayland-server.h>
+
+#include "meta-wayland-seat.h"
+
+void
+meta_wayland_data_device_set_keyboard_focus (MetaWaylandSeat *seat);
+
+int
+meta_wayland_data_device_manager_init (struct wl_display *display);
+
+void
+meta_wayland_seat_set_selection (MetaWaylandSeat *seat,
+                                 MetaWaylandDataSource *source,
+                                 uint32_t serial);
+
+
+#endif /* __META_WAYLAND_DATA_DEVICE_H__ */
--- a/src/wayland/meta-wayland-keyboard.c
+++ b/src/wayland/meta-wayland-keyboard.c
@ -0,0 +1,512 @@
+/*
+ * Wayland Support
+ *
+ * Copyright (C) 2013 Intel Corporation
+ *
+ * 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.
+ */
+
+/*
+ * Copyright © 2010-2011 Intel Corporation
+ * Copyright © 2008-2011 Kristian Høgsberg
+ * Copyright © 2012 Collabora, Ltd.
+ *
+ * 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.
+ */
+
+/* The file is based on src/input.c from Weston */
+
+#define _GNU_SOURCE
+
+#include "config.h"
+
+#include <glib.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include "meta-wayland-keyboard.h"
+
+static MetaWaylandSeat *
+meta_wayland_keyboard_get_seat (MetaWaylandKeyboard *keyboard)
+{
+  MetaWaylandSeat *seat = wl_container_of (keyboard, seat, keyboard);
+
+  return seat;
+}
+
+static int
+create_anonymous_file (off_t size,
+                       GError **error)
+{
+  static const char template[] = "mutter-shared-XXXXXX";
+  char *path;
+  int fd, flags;
+
+  fd = g_file_open_tmp (template, &path, error);
+
+  if (fd == -1)
+    return -1;
+
+  unlink (path);
+  g_free (path);
+
+  flags = fcntl (fd, F_GETFD);
+  if (flags == -1)
+    goto err;
+
+  if (fcntl (fd, F_SETFD, flags | FD_CLOEXEC) == -1)
+    goto err;
+
+  if (ftruncate (fd, size) < 0)
+    goto err;
+
+  return fd;
+
+ err:
+  g_set_error_literal (error,
+                       G_FILE_ERROR,
+                       g_file_error_from_errno (errno),
+                       strerror (errno));
+  close (fd);
+
+  return -1;
+}
+
+static gboolean
+meta_wayland_xkb_info_new_keymap (MetaWaylandXkbInfo *xkb_info)
+{
+  GError *error = NULL;
+  char *keymap_str;
+
+  xkb_info->shift_mod =
+    xkb_map_mod_get_index (xkb_info->keymap, XKB_MOD_NAME_SHIFT);
+  xkb_info->caps_mod =
+    xkb_map_mod_get_index (xkb_info->keymap, XKB_MOD_NAME_CAPS);
+  xkb_info->ctrl_mod =
+    xkb_map_mod_get_index (xkb_info->keymap, XKB_MOD_NAME_CTRL);
+  xkb_info->alt_mod =
+    xkb_map_mod_get_index (xkb_info->keymap, XKB_MOD_NAME_ALT);
+  xkb_info->mod2_mod = xkb_map_mod_get_index (xkb_info->keymap, "Mod2");
+  xkb_info->mod3_mod = xkb_map_mod_get_index (xkb_info->keymap, "Mod3");
+  xkb_info->super_mod =
+    xkb_map_mod_get_index (xkb_info->keymap, XKB_MOD_NAME_LOGO);
+  xkb_info->mod5_mod = xkb_map_mod_get_index (xkb_info->keymap, "Mod5");
+
+  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;
+    }
+  xkb_info->keymap_size = strlen (keymap_str) + 1;
+
+  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",
+                 (unsigned long) xkb_info->keymap_size,
+                 error->message);
+      g_clear_error (&error);
+      goto err_keymap_str;
+    }
+
+  xkb_info->keymap_area = mmap (NULL, xkb_info->keymap_size,
+                                PROT_READ | PROT_WRITE,
+                                MAP_SHARED, xkb_info->keymap_fd, 0);
+  if (xkb_info->keymap_area == MAP_FAILED)
+    {
+      g_warning ("failed to mmap() %lu bytes\n",
+                 (unsigned long) xkb_info->keymap_size);
+      goto err_dev_zero;
+    }
+  strcpy (xkb_info->keymap_area, keymap_str);
+  free (keymap_str);
+
+  return TRUE;
+
+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;
+}
+
+static void
+lose_keyboard_focus (struct wl_listener *listener, void *data)
+{
+  MetaWaylandKeyboard *keyboard =
+    wl_container_of (listener, keyboard, focus_listener);
+
+  keyboard->focus_resource = NULL;
+}
+
+static void
+default_grab_key (MetaWaylandKeyboardGrab *grab,
+                  uint32_t time, uint32_t key, uint32_t state)
+{
+  MetaWaylandKeyboard *keyboard = grab->keyboard;
+  struct wl_resource *resource;
+  uint32_t serial;
+
+  resource = keyboard->focus_resource;
+  if (resource)
+    {
+      struct wl_client *client = wl_resource_get_client (resource);
+      struct wl_display *display = wl_client_get_display (client);
+      serial = wl_display_next_serial (display);
+      wl_keyboard_send_key (resource, serial, time, key, state);
+    }
+}
+
+static struct wl_resource *
+find_resource_for_surface (struct wl_list *list, MetaWaylandSurface *surface)
+{
+  struct wl_client *client;
+
+  if (!surface)
+    return NULL;
+
+  if (!surface->resource)
+    return NULL;
+
+  client = wl_resource_get_client (surface->resource);
+
+  return wl_resource_find_for_client (list, client);
+}
+
+static void
+default_grab_modifiers (MetaWaylandKeyboardGrab *grab, uint32_t serial,
+                        uint32_t mods_depressed, uint32_t mods_latched,
+                        uint32_t mods_locked, uint32_t group)
+{
+  MetaWaylandKeyboard *keyboard = grab->keyboard;
+  MetaWaylandSeat *seat = meta_wayland_keyboard_get_seat (keyboard);
+  MetaWaylandPointer *pointer = &seat->pointer;
+  struct wl_resource *resource, *pr;
+
+  resource = keyboard->focus_resource;
+  if (!resource)
+    return;
+
+  wl_keyboard_send_modifiers (resource, serial, mods_depressed,
+                              mods_latched, mods_locked, group);
+
+  if (pointer && pointer->focus && pointer->focus != keyboard->focus)
+    {
+      pr = find_resource_for_surface (&keyboard->resource_list,
+                                      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);
+        }
+    }
+}
+
+static const MetaWaylandKeyboardGrabInterface
+  default_keyboard_grab_interface = {
+  default_grab_key,
+  default_grab_modifiers,
+};
+
+gboolean
+meta_wayland_keyboard_init (MetaWaylandKeyboard *keyboard,
+                            struct wl_display *display)
+{
+  memset (keyboard, 0, sizeof *keyboard);
+
+  wl_list_init (&keyboard->resource_list);
+  wl_array_init (&keyboard->keys);
+  keyboard->focus_listener.notify = lose_keyboard_focus;
+  keyboard->default_grab.interface = &default_keyboard_grab_interface;
+  keyboard->default_grab.keyboard = keyboard;
+  keyboard->grab = &keyboard->default_grab;
+  wl_signal_init (&keyboard->focus_signal);
+
+  keyboard->display = display;
+
+  keyboard->xkb_context = xkb_context_new (0 /* flags */);
+
+  meta_wayland_keyboard_build_global_keymap (keyboard->xkb_context,
+                                         &keyboard->xkb_names,
+                                         &keyboard->xkb_info);
+
+  return TRUE;
+}
+
+static void
+meta_wayland_xkb_info_destroy (MetaWaylandXkbInfo *xkb_info)
+{
+  if (xkb_info->keymap)
+    xkb_map_unref (xkb_info->keymap);
+
+  if (xkb_info->keymap_area)
+    munmap (xkb_info->keymap_area, xkb_info->keymap_size);
+  if (xkb_info->keymap_fd >= 0)
+    close (xkb_info->keymap_fd);
+}
+
+static void
+set_modifiers (MetaWaylandKeyboard *keyboard,
+               guint32 serial,
+               ClutterModifierType modifier_state)
+{
+  MetaWaylandKeyboardGrab *grab = keyboard->grab;
+  uint32_t depressed_mods = 0;
+  uint32_t locked_mods = 0;
+
+  if (keyboard->last_modifier_state == modifier_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;
+
+  grab->interface->modifiers (grab,
+                              serial,
+                              depressed_mods,
+                              0, /* latched_modes */
+                              locked_mods,
+                              0 /* group */);
+}
+
+void
+meta_wayland_keyboard_handle_event (MetaWaylandKeyboard *keyboard,
+                                    const ClutterKeyEvent *event)
+{
+  gboolean state = event->type == CLUTTER_KEY_PRESS;
+  guint evdev_code;
+  uint32_t serial;
+
+  /* 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;
+
+  /* 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)
+    {
+      uint32_t *end = (void *) ((char *) keyboard->keys.data +
+                                keyboard->keys.size);
+      uint32_t *k;
+
+      /* Ignore the event if the key is already down */
+      for (k = keyboard->keys.data; k < end; k++)
+        if (*k == evdev_code)
+          return;
+
+      /* Otherwise add the key to the list of pressed keys */
+      k = wl_array_add (&keyboard->keys, sizeof (*k));
+      *k = evdev_code;
+    }
+  else
+    {
+      uint32_t *end = (void *) ((char *) keyboard->keys.data +
+                                keyboard->keys.size);
+      uint32_t *k;
+
+      /* Remove the key from the array */
+      for (k = keyboard->keys.data; k < end; k++)
+        if (*k == evdev_code)
+          {
+            *k = *(end - 1);
+            keyboard->keys.size -= sizeof (*k);
+
+            goto found;
+          }
+
+      g_warning ("unexpected key release event for key 0x%x", evdev_code);
+
+    found:
+      (void) 0;
+    }
+
+  serial = wl_display_next_serial (keyboard->display);
+
+  set_modifiers (keyboard, serial, event->modifier_state);
+
+  keyboard->grab->interface->key (keyboard->grab,
+                                  event->time,
+                                  evdev_code,
+                                  state);
+}
+
+void
+meta_wayland_keyboard_set_focus (MetaWaylandKeyboard *keyboard,
+                                 MetaWaylandSurface *surface)
+{
+  struct wl_resource *resource;
+  uint32_t serial;
+
+  if (keyboard->focus_resource && keyboard->focus != surface)
+    {
+      struct wl_display *display;
+      struct wl_client *client;
+
+      resource = keyboard->focus_resource;
+      client = wl_resource_get_client (resource);
+      display = wl_client_get_display (client);
+      serial = wl_display_next_serial (display);
+      wl_keyboard_send_leave (resource, serial, keyboard->focus->resource);
+      wl_list_remove (&keyboard->focus_listener.link);
+    }
+
+  resource = find_resource_for_surface (&keyboard->resource_list, surface);
+  if (resource &&
+      (keyboard->focus != surface || keyboard->focus_resource != resource))
+    {
+      struct wl_client *client = wl_resource_get_client (resource);
+      struct wl_display *display;
+
+      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);
+      wl_resource_add_destroy_listener (resource, &keyboard->focus_listener);
+      keyboard->focus_serial = serial;
+    }
+
+  keyboard->focus_resource = resource;
+  keyboard->focus = surface;
+  wl_signal_emit (&keyboard->focus_signal, keyboard);
+}
+
+void
+meta_wayland_keyboard_start_grab (MetaWaylandKeyboard *keyboard,
+                                  MetaWaylandKeyboardGrab *grab)
+{
+  keyboard->grab = grab;
+  grab->keyboard = keyboard;
+
+  /* XXX focus? */
+}
+
+void
+meta_wayland_keyboard_end_grab (MetaWaylandKeyboard *keyboard)
+{
+  keyboard->grab = &keyboard->default_grab;
+}
+
+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);
+
+  /* XXX: What about keyboard->resource_list? */
+  if (keyboard->focus_resource)
+    wl_list_remove (&keyboard->focus_listener.link);
+  wl_array_release (&keyboard->keys);
+}
--- a/src/wayland/meta-wayland-keyboard.h
+++ b/src/wayland/meta-wayland-keyboard.h
@ -0,0 +1,75 @@
+/*
+ * Wayland Support
+ *
+ * Copyright (C) 2013 Intel Corporation
+ *
+ * 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.
+ */
+
+/*
+ * Copyright © 2008-2011 Kristian Høgsberg
+ * Copyright © 2012 Collabora, Ltd.
+ *
+ * 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 __META_WAYLAND_KEYBOARD_H__
+#define __META_WAYLAND_KEYBOARD_H__
+
+#include <clutter/clutter.h>
+#include <wayland-server.h>
+
+#include "meta-wayland-seat.h"
+
+gboolean
+meta_wayland_keyboard_init (MetaWaylandKeyboard *keyboard,
+                            struct wl_display *display);
+
+void
+meta_wayland_keyboard_handle_event (MetaWaylandKeyboard *keyboard,
+                                    const ClutterKeyEvent *event);
+
+void
+meta_wayland_keyboard_set_focus (MetaWaylandKeyboard *keyboard,
+                                 MetaWaylandSurface *surface);
+
+void
+meta_wayland_keyboard_start_grab (MetaWaylandKeyboard *device,
+                                  MetaWaylandKeyboardGrab *grab);
+
+void
+meta_wayland_keyboard_end_grab (MetaWaylandKeyboard *keyboard);
+
+void
+meta_wayland_keyboard_release (MetaWaylandKeyboard *keyboard);
+
+#endif /* __META_WAYLAND_KEYBOARD_H__ */
--- a/src/wayland/meta-wayland-pointer.c
+++ b/src/wayland/meta-wayland-pointer.c
@ -0,0 +1,264 @@
+/*
+ * Wayland Support
+ *
+ * Copyright (C) 2013 Intel Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Copyright © 2008 Kristian Høgsberg
+ *
+ * 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.
+ */
+
+/* The file is based on src/input.c from Weston */
+
+#include "config.h"
+
+#include "meta-wayland-pointer.h"
+
+#include <string.h>
+
+static MetaWaylandSeat *
+meta_wayland_pointer_get_seat (MetaWaylandPointer *pointer)
+{
+  MetaWaylandSeat *seat = wl_container_of (pointer, seat, pointer);
+
+  return seat;
+}
+
+static void
+lose_pointer_focus (struct wl_listener *listener, void *data)
+{
+  MetaWaylandPointer *pointer =
+    wl_container_of (listener, pointer, focus_listener);
+
+  pointer->focus_resource = NULL;
+  pointer->focus = NULL;
+}
+
+static void
+default_grab_focus (MetaWaylandPointerGrab *grab,
+                    MetaWaylandSurface *surface,
+                    wl_fixed_t x,
+                    wl_fixed_t y)
+{
+  MetaWaylandPointer *pointer = grab->pointer;
+
+  if (pointer->button_count > 0)
+    return;
+
+  meta_wayland_pointer_set_focus (pointer, surface, x, y);
+}
+
+static void
+default_grab_motion (MetaWaylandPointerGrab *grab,
+                     uint32_t time, wl_fixed_t x, wl_fixed_t y)
+{
+  struct wl_resource *resource;
+
+  resource = grab->pointer->focus_resource;
+  if (resource)
+    wl_pointer_send_motion (resource, time, x, y);
+}
+
+static void
+default_grab_button (MetaWaylandPointerGrab *grab,
+                     uint32_t time, uint32_t button, uint32_t state_w)
+{
+  MetaWaylandPointer *pointer = grab->pointer;
+  struct wl_resource *resource;
+  uint32_t serial;
+  enum wl_pointer_button_state state = state_w;
+
+  resource = pointer->focus_resource;
+  if (resource)
+    {
+      struct wl_client *client = wl_resource_get_client (resource);
+      struct wl_display *display = wl_client_get_display (client);
+      serial = wl_display_next_serial (display);
+      wl_pointer_send_button (resource, serial, time, button, state_w);
+    }
+
+  if (pointer->button_count == 0 && state == WL_POINTER_BUTTON_STATE_RELEASED)
+    meta_wayland_pointer_set_focus (pointer, pointer->current,
+                                pointer->current_x, pointer->current_y);
+}
+
+static const MetaWaylandPointerGrabInterface default_pointer_grab_interface = {
+  default_grab_focus,
+  default_grab_motion,
+  default_grab_button
+};
+
+void
+meta_wayland_pointer_init (MetaWaylandPointer *pointer)
+{
+  memset (pointer, 0, sizeof *pointer);
+  wl_list_init (&pointer->resource_list);
+  pointer->focus_listener.notify = lose_pointer_focus;
+  pointer->default_grab.interface = &default_pointer_grab_interface;
+  pointer->default_grab.pointer = 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);
+}
+
+void
+meta_wayland_pointer_release (MetaWaylandPointer *pointer)
+{
+  /* XXX: What about pointer->resource_list? */
+  if (pointer->focus_resource)
+    wl_list_remove (&pointer->focus_listener.link);
+
+  pointer->focus = NULL;
+  pointer->focus_resource = NULL;
+}
+
+static struct wl_resource *
+find_resource_for_surface (struct wl_list *list, MetaWaylandSurface *surface)
+{
+  struct wl_client *client;
+
+  if (!surface)
+    return NULL;
+
+  g_assert (surface->resource);
+  client = wl_resource_get_client (surface->resource);
+
+  return wl_resource_find_for_client (list, client);
+}
+
+void
+meta_wayland_pointer_set_focus (MetaWaylandPointer *pointer,
+                                MetaWaylandSurface *surface,
+                                wl_fixed_t sx, wl_fixed_t sy)
+{
+  MetaWaylandSeat *seat = meta_wayland_pointer_get_seat (pointer);
+  MetaWaylandKeyboard *kbd = &seat->keyboard;
+  struct wl_resource *resource, *kr;
+  uint32_t serial;
+
+  resource = pointer->focus_resource;
+  if (resource && pointer->focus != surface)
+    {
+      struct wl_client *client = wl_resource_get_client (resource);
+      struct wl_display *display = wl_client_get_display (client);
+      serial = wl_display_next_serial (display);
+      wl_pointer_send_leave (resource, serial, pointer->focus->resource);
+      wl_list_remove (&pointer->focus_listener.link);
+    }
+
+  resource = find_resource_for_surface (&pointer->resource_list, surface);
+  if (resource &&
+      (pointer->focus != surface || pointer->focus_resource != resource))
+    {
+      struct wl_client *client = wl_resource_get_client (resource);
+      struct wl_display *display = wl_client_get_display (client);
+      serial = wl_display_next_serial (display);
+      if (kbd)
+        {
+          kr = find_resource_for_surface (&kbd->resource_list, surface);
+          if (kr)
+            {
+              wl_keyboard_send_modifiers (kr,
+                                          serial,
+                                          kbd->modifiers.mods_depressed,
+                                          kbd->modifiers.mods_latched,
+                                          kbd->modifiers.mods_locked,
+                                          kbd->modifiers.group);
+            }
+        }
+      wl_pointer_send_enter (resource, serial, surface->resource, sx, sy);
+      wl_resource_add_destroy_listener (resource, &pointer->focus_listener);
+      pointer->focus_serial = serial;
+    }
+
+  pointer->focus_resource = resource;
+  pointer->focus = surface;
+  pointer->default_grab.focus = surface;
+  wl_signal_emit (&pointer->focus_signal, pointer);
+}
+
+void
+meta_wayland_pointer_start_grab (MetaWaylandPointer *pointer,
+                                 MetaWaylandPointerGrab *grab)
+{
+  const MetaWaylandPointerGrabInterface *interface;
+
+  pointer->grab = grab;
+  interface = pointer->grab->interface;
+  grab->pointer = pointer;
+
+  if (pointer->current)
+    interface->focus (pointer->grab, pointer->current,
+                      pointer->current_x, pointer->current_y);
+}
+
+void
+meta_wayland_pointer_end_grab (MetaWaylandPointer *pointer)
+{
+  const MetaWaylandPointerGrabInterface *interface;
+
+  pointer->grab = &pointer->default_grab;
+  interface = pointer->grab->interface;
+  interface->focus (pointer->grab, pointer->current,
+                    pointer->current_x, pointer->current_y);
+}
+
+static void
+current_surface_destroy (struct wl_listener *listener, void *data)
+{
+  MetaWaylandPointer *pointer =
+    wl_container_of (listener, pointer, current_listener);
+
+  pointer->current = NULL;
+}
+
+void
+meta_wayland_pointer_set_current (MetaWaylandPointer *pointer,
+                                  MetaWaylandSurface *surface)
+{
+  if (pointer->current)
+    wl_list_remove (&pointer->current_listener.link);
+
+  pointer->current = surface;
+
+  if (!surface)
+    return;
+
+  wl_resource_add_destroy_listener (surface->resource,
+                                    &pointer->current_listener);
+  pointer->current_listener.notify = current_surface_destroy;
+}
--- a/src/wayland/meta-wayland-pointer.h
+++ b/src/wayland/meta-wayland-pointer.h
@ -0,0 +1,49 @@
+/*
+ * Wayland Support
+ *
+ * Copyright (C) 2013 Intel Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __META_WAYLAND_POINTER_H__
+#define __META_WAYLAND_POINTER_H__
+
+#include <wayland-server.h>
+
+#include "meta-wayland-seat.h"
+
+void
+meta_wayland_pointer_init (MetaWaylandPointer *pointer);
+
+void
+meta_wayland_pointer_release (MetaWaylandPointer *pointer);
+
+void
+meta_wayland_pointer_set_focus (MetaWaylandPointer *pointer,
+                                MetaWaylandSurface *surface,
+                                wl_fixed_t sx,
+                                wl_fixed_t sy);
+void
+meta_wayland_pointer_start_grab (MetaWaylandPointer *pointer,
+                                 MetaWaylandPointerGrab *grab);
+
+void
+meta_wayland_pointer_end_grab (MetaWaylandPointer *pointer);
+
+void
+meta_wayland_pointer_set_current (MetaWaylandPointer *pointer,
+                                  MetaWaylandSurface *surface);
+
+#endif /* __META_WAYLAND_POINTER_H__ */
--- a/src/wayland/meta-wayland-private.h
+++ b/src/wayland/meta-wayland-private.h
@ -0,0 +1,343 @@
+/*
+ * Copyright (C) 2012 Intel Corporation
+ *
+ * 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_PRIVATE_H
+#define META_WAYLAND_PRIVATE_H
+
+#include <wayland-server.h>
+#include <xkbcommon/xkbcommon.h>
+#include <clutter/clutter.h>
+
+#include <glib.h>
+#include <cairo.h>
+
+#include "window-private.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;
+
+typedef struct
+{
+  struct wl_resource *resource;
+  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
+{
+  GSource source;
+  GPollFD pfd;
+  struct wl_display *display;
+} WaylandEventSource;
+
+typedef struct
+{
+  struct wl_list link;
+
+  /* Pointer back to the compositor */
+  MetaWaylandCompositor *compositor;
+
+  struct wl_resource *resource;
+} MetaWaylandFrameCallback;
+
+struct _MetaWaylandCompositor
+{
+  struct wl_display *wayland_display;
+  struct wl_event_loop *wayland_loop;
+  GMainLoop *init_loop;
+  ClutterActor *stage;
+  GHashTable *outputs;
+  GSource *wayland_event_source;
+  GList *surfaces;
+  struct wl_list frame_callbacks;
+
+  int xwayland_display_index;
+  char *xwayland_lockfile;
+  int xwayland_abstract_fd;
+  int xwayland_unix_fd;
+  pid_t xwayland_pid;
+  struct wl_client *xwayland_client;
+  struct wl_resource *xserver_resource;
+
+  MetaWaylandSeat *seat;
+
+  /* This surface is only used to keep drag of the implicit grab when
+     synthesizing XEvents for Mutter */
+  MetaWaylandSurface *implicit_grab_surface;
+  /* Button that was pressed to initiate an implicit grab. The
+     implicit grab will only be released when this button is
+     released */
+  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);
+
+/* We maintain a singleton MetaWaylandCompositor which can be got at via this
+ * API after meta_wayland_init() has been called. */
+MetaWaylandCompositor  *meta_wayland_compositor_get_default     (void);
+
+void                    meta_wayland_compositor_repick          (MetaWaylandCompositor *compositor);
+
+void                    meta_wayland_compositor_set_input_focus (MetaWaylandCompositor *compositor,
+                                                                 MetaWindow            *window);
+
+void                    meta_wayland_surface_free               (MetaWaylandSurface    *surface);
+
+#endif /* META_WAYLAND_PRIVATE_H */
--- a/src/wayland/meta-wayland-seat.c
+++ b/src/wayland/meta-wayland-seat.c
@ -0,0 +1,552 @@
+/*
+ * Wayland Support
+ *
+ * Copyright (C) 2013 Intel Corporation
+ *
+ * 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 <cogl/cogl-wayland-server.h>
+#include <clutter/clutter.h>
+#include <clutter/wayland/clutter-wayland-compositor.h>
+#include <clutter/wayland/clutter-wayland-surface.h>
+#include <linux/input.h>
+#include <stdlib.h>
+#include <string.h>
+#include "meta-wayland-seat.h"
+#include "meta-wayland-private.h"
+#include "meta-wayland-keyboard.h"
+#include "meta-wayland-pointer.h"
+#include "meta-wayland-data-device.h"
+#include "meta-window-actor-private.h"
+#include "meta/meta-shaped-texture.h"
+#include "meta-shaped-texture-private.h"
+#include "meta-wayland-stage.h"
+#include "meta-cursor-tracker-private.h"
+
+#define DEFAULT_AXIS_STEP_DISTANCE wl_fixed_from_int (10)
+
+static void
+unbind_resource (struct wl_resource *resource)
+{
+  wl_list_remove (wl_resource_get_link (resource));
+}
+
+static void
+transform_stage_point_fixed (MetaWaylandSurface *surface,
+                             wl_fixed_t x,
+                             wl_fixed_t y,
+                             wl_fixed_t *sx,
+                             wl_fixed_t *sy)
+{
+  float xf = 0.0f, yf = 0.0f;
+
+  if (surface->window)
+    {
+      ClutterActor *actor =
+        CLUTTER_ACTOR (meta_window_get_compositor_private (surface->window));
+
+      if (actor)
+        clutter_actor_transform_stage_point (actor,
+                                             wl_fixed_to_double (x),
+                                             wl_fixed_to_double (y),
+                                             &xf, &yf);
+    }
+
+  *sx = wl_fixed_from_double (xf);
+  *sy = wl_fixed_from_double (yf);
+}
+
+static void
+pointer_unmap_sprite (MetaWaylandSeat *seat)
+{
+  if (seat->cursor_tracker)
+    {
+      meta_cursor_tracker_set_sprite (seat->cursor_tracker,
+				      NULL, 0, 0);
+
+      if (seat->current_stage)
+	meta_cursor_tracker_queue_redraw (seat->cursor_tracker,
+					  CLUTTER_ACTOR (seat->current_stage));
+    }
+
+  if (seat->sprite)
+    {
+      wl_list_remove (&seat->sprite_destroy_listener.link);
+      seat->sprite = NULL;
+    }
+}
+
+void
+meta_wayland_seat_update_sprite (MetaWaylandSeat *seat)
+{
+  ClutterBackend *backend;
+  CoglContext *context;
+  struct wl_resource *buffer;
+  CoglTexture2D *texture;
+
+  if (seat->cursor_tracker == NULL)
+    return;
+
+  backend = clutter_get_default_backend ();
+  context = clutter_backend_get_cogl_context (backend);
+  buffer = seat->sprite->buffer_ref.buffer->resource;
+  texture = cogl_wayland_texture_2d_new_from_buffer (context, buffer, NULL);
+
+  meta_cursor_tracker_set_sprite (seat->cursor_tracker,
+				  texture,
+				  seat->hotspot_x,
+				  seat->hotspot_y);
+
+  if (seat->current_stage)
+    meta_cursor_tracker_queue_redraw (seat->cursor_tracker,
+				      CLUTTER_ACTOR (seat->current_stage));
+
+  cogl_object_unref (texture);
+}
+
+static void
+pointer_set_cursor (struct wl_client *client,
+                    struct wl_resource *resource,
+                    uint32_t serial,
+                    struct wl_resource *surface_resource,
+                    int32_t x, int32_t y)
+{
+  MetaWaylandSeat *seat = wl_resource_get_user_data (resource);
+  MetaWaylandSurface *surface;
+
+  surface = (surface_resource ?
+             wl_resource_get_user_data (surface_resource) :
+             NULL);
+
+  if (seat->pointer.focus == NULL)
+    return;
+  if (wl_resource_get_client (seat->pointer.focus->resource) != client)
+    return;
+  if (seat->pointer.focus_serial - serial > G_MAXUINT32 / 2)
+    return;
+
+  seat->hotspot_x = x;
+  seat->hotspot_y = y;
+
+  if (seat->sprite != surface)
+    {
+      pointer_unmap_sprite (seat);
+
+      if (!surface)
+        return;
+
+      wl_resource_add_destroy_listener (surface->resource,
+                                        &seat->sprite_destroy_listener);
+
+      seat->sprite = surface;
+
+      if (seat->sprite->buffer_ref.buffer)
+        meta_wayland_seat_update_sprite (seat);
+    }
+}
+
+static const struct wl_pointer_interface
+pointer_interface =
+  {
+    pointer_set_cursor
+  };
+
+static void
+seat_get_pointer (struct wl_client *client,
+                  struct wl_resource *resource,
+                  uint32_t id)
+{
+  MetaWaylandSeat *seat = wl_resource_get_user_data (resource);
+  struct wl_resource *cr;
+
+  cr = wl_client_add_object (client, &wl_pointer_interface,
+                             &pointer_interface, id, seat);
+  wl_list_insert (&seat->pointer.resource_list, wl_resource_get_link (cr));
+  wl_resource_set_destructor (cr, unbind_resource);
+
+  if (seat->pointer.focus &&
+      wl_resource_get_client (seat->pointer.focus->resource) == client)
+    {
+      MetaWaylandSurface *surface;
+      wl_fixed_t sx, sy;
+
+      surface = (MetaWaylandSurface *) seat->pointer.focus;
+      transform_stage_point_fixed (surface,
+                                   seat->pointer.x,
+                                   seat->pointer.y,
+                                   &sx, &sy);
+      meta_wayland_pointer_set_focus (&seat->pointer,
+                                  seat->pointer.focus,
+                                  sx, sy);
+    }
+}
+
+static void
+seat_get_keyboard (struct wl_client *client,
+                   struct wl_resource *resource,
+                   uint32_t id)
+{
+  MetaWaylandSeat *seat = wl_resource_get_user_data (resource);
+  struct wl_resource *cr;
+
+  cr = wl_client_add_object (client, &wl_keyboard_interface, NULL, id, seat);
+  wl_list_insert (&seat->keyboard.resource_list, wl_resource_get_link (cr));
+  wl_resource_set_destructor (cr, unbind_resource);
+
+  wl_keyboard_send_keymap (cr,
+                           WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1,
+                           seat->keyboard.xkb_info.keymap_fd,
+                           seat->keyboard.xkb_info.keymap_size);
+
+  if (seat->keyboard.focus &&
+      wl_resource_get_client (seat->keyboard.focus->resource) == client)
+    {
+      meta_wayland_keyboard_set_focus (&seat->keyboard,
+                                   seat->keyboard.focus);
+      meta_wayland_data_device_set_keyboard_focus (seat);
+    }
+}
+
+static void
+seat_get_touch (struct wl_client *client,
+                struct wl_resource *resource,
+                uint32_t id)
+{
+  /* Touch not supported */
+}
+
+static const struct wl_seat_interface
+seat_interface =
+  {
+    seat_get_pointer,
+    seat_get_keyboard,
+    seat_get_touch
+  };
+
+static void
+bind_seat (struct wl_client *client,
+           void *data,
+           guint32 version,
+           guint32 id)
+{
+  MetaWaylandSeat *seat = data;
+  struct wl_resource *resource;
+
+  resource = wl_client_add_object (client,
+                                   &wl_seat_interface,
+                                   &seat_interface,
+                                   id,
+                                   data);
+  wl_list_insert (&seat->base_resource_list, wl_resource_get_link (resource));
+  wl_resource_set_destructor (resource, unbind_resource);
+
+  wl_seat_send_capabilities (resource,
+                             WL_SEAT_CAPABILITY_POINTER |
+                             WL_SEAT_CAPABILITY_KEYBOARD);
+}
+
+static void
+pointer_handle_sprite_destroy (struct wl_listener *listener, void *data)
+{
+  MetaWaylandSeat *seat =
+    wl_container_of (listener, seat, sprite_destroy_listener);
+
+  pointer_unmap_sprite (seat);
+}
+
+MetaWaylandSeat *
+meta_wayland_seat_new (struct wl_display *display)
+{
+  MetaWaylandSeat *seat = g_new0 (MetaWaylandSeat, 1);
+
+  wl_signal_init (&seat->destroy_signal);
+
+  seat->selection_data_source = NULL;
+  wl_list_init (&seat->base_resource_list);
+  wl_signal_init (&seat->selection_signal);
+  wl_list_init (&seat->drag_resource_list);
+  wl_signal_init (&seat->drag_icon_signal);
+
+  meta_wayland_pointer_init (&seat->pointer);
+
+  meta_wayland_keyboard_init (&seat->keyboard, display);
+
+  seat->display = display;
+
+  seat->current_stage = 0;
+
+  seat->sprite = NULL;
+  seat->sprite_destroy_listener.notify = pointer_handle_sprite_destroy;
+  seat->hotspot_x = 16;
+  seat->hotspot_y = 16;
+
+  wl_display_add_global (display, &wl_seat_interface, seat, bind_seat);
+
+  return seat;
+}
+
+static void
+notify_motion (MetaWaylandSeat *seat,
+               const ClutterEvent *event)
+{
+  MetaWaylandPointer *pointer = &seat->pointer;
+  float x, y;
+
+  clutter_event_get_coords (event, &x, &y);
+  pointer->x = wl_fixed_from_double (x);
+  pointer->y = wl_fixed_from_double (y);
+
+  meta_wayland_seat_repick (seat,
+                        clutter_event_get_time (event),
+                        clutter_event_get_source (event));
+
+  pointer->grab->interface->motion (pointer->grab,
+                                    clutter_event_get_time (event),
+                                    pointer->grab->x,
+                                    pointer->grab->y);
+}
+
+static void
+handle_motion_event (MetaWaylandSeat *seat,
+                     const ClutterMotionEvent *event)
+{
+  notify_motion (seat, (const ClutterEvent *) event);
+}
+
+static void
+handle_button_event (MetaWaylandSeat *seat,
+                     const ClutterButtonEvent *event)
+{
+  MetaWaylandPointer *pointer = &seat->pointer;
+  gboolean state = event->type == CLUTTER_BUTTON_PRESS;
+  uint32_t button;
+
+  notify_motion (seat, (const ClutterEvent *) event);
+
+  switch (event->button)
+    {
+      /* The evdev input right and middle button numbers are swapped
+         relative to how Clutter numbers them */
+    case 2:
+      button = BTN_MIDDLE;
+      break;
+
+    case 3:
+      button = BTN_RIGHT;
+      break;
+
+    default:
+      button = event->button + BTN_LEFT - 1;
+      break;
+    }
+
+  if (state)
+    {
+      if (pointer->button_count == 0)
+        {
+          MetaWaylandSurface *surface = pointer->current;
+
+          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++;
+    }
+  else
+    pointer->button_count--;
+
+  pointer->grab->interface->button (pointer->grab, event->time, button, state);
+
+  if (pointer->button_count == 1)
+    pointer->grab_serial = wl_display_get_serial (seat->display);
+}
+
+static void
+handle_scroll_event (MetaWaylandSeat *seat,
+                     const ClutterScrollEvent *event)
+{
+  enum wl_pointer_axis axis;
+  wl_fixed_t value;
+
+  notify_motion (seat, (const ClutterEvent *) event);
+
+  switch (event->direction)
+    {
+    case CLUTTER_SCROLL_UP:
+      axis = WL_POINTER_AXIS_VERTICAL_SCROLL;
+      value = -DEFAULT_AXIS_STEP_DISTANCE;
+      break;
+
+    case CLUTTER_SCROLL_DOWN:
+      axis = WL_POINTER_AXIS_VERTICAL_SCROLL;
+      value = DEFAULT_AXIS_STEP_DISTANCE;
+      break;
+
+    case CLUTTER_SCROLL_LEFT:
+      axis = WL_POINTER_AXIS_HORIZONTAL_SCROLL;
+      value = -DEFAULT_AXIS_STEP_DISTANCE;
+      break;
+
+    case CLUTTER_SCROLL_RIGHT:
+      axis = WL_POINTER_AXIS_HORIZONTAL_SCROLL;
+      value = DEFAULT_AXIS_STEP_DISTANCE;
+      break;
+
+    default:
+      return;
+    }
+
+  if (seat->pointer.focus_resource)
+    wl_pointer_send_axis (seat->pointer.focus_resource,
+                          event->time,
+                          axis,
+                          value);
+}
+
+void
+meta_wayland_seat_handle_event (MetaWaylandSeat *seat,
+                                const ClutterEvent *event)
+{
+  switch (event->type)
+    {
+    case CLUTTER_MOTION:
+      handle_motion_event (seat,
+                           (const ClutterMotionEvent *) event);
+      break;
+
+    case CLUTTER_BUTTON_PRESS:
+    case CLUTTER_BUTTON_RELEASE:
+      handle_button_event (seat,
+                           (const ClutterButtonEvent *) event);
+      break;
+
+    case CLUTTER_KEY_PRESS:
+    case CLUTTER_KEY_RELEASE:
+      meta_wayland_keyboard_handle_event (&seat->keyboard,
+                                          (const ClutterKeyEvent *) event);
+      break;
+
+    case CLUTTER_SCROLL:
+      handle_scroll_event (seat, (const ClutterScrollEvent *) event);
+      break;
+
+    default:
+      break;
+    }
+}
+
+static void
+update_pointer_position_for_actor (MetaWaylandPointer *pointer,
+                                   ClutterActor *actor)
+{
+  float ax, ay;
+
+  clutter_actor_transform_stage_point (actor,
+                                       wl_fixed_to_double (pointer->x),
+                                       wl_fixed_to_double (pointer->y),
+                                       &ax, &ay);
+  pointer->current_x = wl_fixed_from_double (ax);
+  pointer->current_y = wl_fixed_from_double (ay);
+}
+
+/* The actor argument can be NULL in which case a Clutter pick will be
+   performed to determine the right actor. An actor should only be
+   passed if the repick is being performed due to an event in which
+   case Clutter will have already performed a pick so we can avoid
+   redundantly doing another one */
+void
+meta_wayland_seat_repick (MetaWaylandSeat *seat,
+                          uint32_t time,
+                          ClutterActor *actor)
+{
+  MetaWaylandPointer *pointer = &seat->pointer;
+  MetaWaylandSurface *surface = NULL;
+
+  if (actor == NULL && seat->current_stage)
+    {
+      ClutterStage *stage = CLUTTER_STAGE (seat->current_stage);
+      actor = clutter_stage_get_actor_at_pos (stage,
+                                              CLUTTER_PICK_REACTIVE,
+                                              wl_fixed_to_double (pointer->x),
+                                              wl_fixed_to_double (pointer->y));
+    }
+
+  if (actor)
+    seat->current_stage = clutter_actor_get_stage (actor);
+  else
+    seat->current_stage = NULL;
+
+  if (META_IS_WINDOW_ACTOR (actor))
+    {
+      MetaWindow *window =
+        meta_window_actor_get_meta_window (META_WINDOW_ACTOR (actor));
+
+      update_pointer_position_for_actor (pointer, actor);
+
+      surface = window->surface;
+    }
+  else if (META_IS_SHAPED_TEXTURE (actor))
+    {
+      MetaShapedTexture *shaped_texture = META_SHAPED_TEXTURE (actor);
+
+      update_pointer_position_for_actor (pointer, actor);
+
+      surface = meta_shaped_texture_get_wayland_surface (shaped_texture);
+    }
+
+  pointer->current = surface;
+  if (surface != pointer->focus)
+    {
+      const MetaWaylandPointerGrabInterface *interface =
+        pointer->grab->interface;
+      interface->focus (pointer->grab,
+                        surface,
+                        pointer->current_x, pointer->current_y);
+    }
+
+  if (pointer->grab->focus)
+    transform_stage_point_fixed (pointer->grab->focus,
+                                 pointer->x,
+                                 pointer->y,
+                                 &pointer->grab->x,
+                                 &pointer->grab->y);
+}
+
+void
+meta_wayland_seat_free (MetaWaylandSeat *seat)
+{
+  pointer_unmap_sprite (seat);
+
+  meta_wayland_pointer_release (&seat->pointer);
+  meta_wayland_keyboard_release (&seat->keyboard);
+
+  wl_signal_emit (&seat->destroy_signal, seat);
+
+  g_slice_free (MetaWaylandSeat, seat);
+}
--- a/src/wayland/meta-wayland-seat.h
+++ b/src/wayland/meta-wayland-seat.h
@ -0,0 +1,50 @@
+/*
+ * Wayland Support
+ *
+ * Copyright (C) 2012 Intel Corporation
+ *
+ * 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_SEAT_H__
+#define __META_WAYLAND_SEAT_H__
+
+#include <wayland-server.h>
+#include <xkbcommon/xkbcommon.h>
+#include <clutter/clutter.h>
+#include <glib.h>
+
+#include "meta-wayland-private.h"
+
+MetaWaylandSeat *
+meta_wayland_seat_new (struct wl_display *display);
+
+void
+meta_wayland_seat_handle_event (MetaWaylandSeat *seat,
+                                const ClutterEvent *event);
+
+void
+meta_wayland_seat_repick (MetaWaylandSeat *seat,
+                          uint32_t time,
+                          ClutterActor *actor);
+
+void
+meta_wayland_seat_update_sprite (MetaWaylandSeat *seat);
+
+void
+meta_wayland_seat_free (MetaWaylandSeat *seat);
+
+#endif /* __META_WAYLAND_SEAT_H__ */
--- a/src/wayland/meta-wayland-stage.c
+++ b/src/wayland/meta-wayland-stage.c
@ -0,0 +1,67 @@
+/*
+ * Wayland Support
+ *
+ * Copyright (C) 2012 Intel Corporation
+ *
+ * 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 <clutter/clutter.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <cogl/cogl-wayland-server.h>
+
+#include "meta-wayland-stage.h"
+#include "meta/meta-window-actor.h"
+#include "meta/meta-shaped-texture.h"
+#include "meta-cursor-tracker-private.h"
+
+G_DEFINE_TYPE (MetaWaylandStage, meta_wayland_stage, CLUTTER_TYPE_STAGE);
+
+static void
+meta_wayland_stage_paint (ClutterActor *actor)
+{
+  MetaWaylandCompositor *compositor;
+
+  CLUTTER_ACTOR_CLASS (meta_wayland_stage_parent_class)->paint (actor);
+
+  compositor = meta_wayland_compositor_get_default ();
+  if (compositor->seat->cursor_tracker)
+    meta_cursor_tracker_paint (compositor->seat->cursor_tracker);
+}
+
+static void
+meta_wayland_stage_class_init (MetaWaylandStageClass *klass)
+{
+  ClutterActorClass *actor_class = (ClutterActorClass *) klass;
+
+  actor_class->paint = meta_wayland_stage_paint;
+}
+
+static void
+meta_wayland_stage_init (MetaWaylandStage *self)
+{
+  clutter_stage_set_user_resizable (CLUTTER_STAGE (self), FALSE);
+}
+
+ClutterActor *
+meta_wayland_stage_new (void)
+{
+  return g_object_new (META_WAYLAND_TYPE_STAGE,
+                       "cursor-visible", FALSE,
+                       NULL);
+}
--- a/src/wayland/meta-wayland-stage.h
+++ b/src/wayland/meta-wayland-stage.h
@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2012 Intel Corporation
+ *
+ * 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_STAGE_H
+#define META_WAYLAND_STAGE_H
+
+#include <clutter/clutter.h>
+#include <wayland-server.h>
+
+#include "window-private.h"
+
+G_BEGIN_DECLS
+
+#define META_WAYLAND_TYPE_STAGE                                         \
+  (meta_wayland_stage_get_type())
+#define META_WAYLAND_STAGE(obj)                                         \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj),                                   \
+                               META_WAYLAND_TYPE_STAGE,                 \
+                               MetaWaylandStage))
+#define META_WAYLAND_STAGE_CLASS(klass)                                 \
+  (G_TYPE_CHECK_CLASS_CAST ((klass),                                    \
+                            META_WAYLAND_TYPE_STAGE,                    \
+                            MetaWaylandStageClass))
+#define META_WAYLAND_IS_STAGE(obj)                                      \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj),                                   \
+                               META_WAYLAND_TYPE_STAGE))
+#define META_WAYLAND_IS_STAGE_CLASS(klass)                              \
+  (G_TYPE_CHECK_CLASS_TYPE ((klass),                                    \
+                            META_WAYLAND_TYPE_STAGE))
+#define META_WAYLAND_STAGE_GET_CLASS(obj)                               \
+  (G_TYPE_INSTANCE_GET_CLASS ((obj),                                    \
+                              META_WAYLAND_STAGE,                       \
+                              MetaWaylandStageClass))
+
+typedef struct _MetaWaylandStage      MetaWaylandStage;
+typedef struct _MetaWaylandStageClass MetaWaylandStageClass;
+
+struct _MetaWaylandStageClass
+{
+  ClutterStageClass parent_class;
+};
+
+struct _MetaWaylandStage
+{
+  ClutterStage parent;
+};
+
+GType             meta_wayland_stage_get_type                (void) G_GNUC_CONST;
+
+ClutterActor     *meta_wayland_stage_new                     (void);
+
+G_END_DECLS
+
+#endif /* META_WAYLAND_STAGE_H */
--- a/src/wayland/meta-wayland.c
+++ b/src/wayland/meta-wayland.c
--- a/src/wayland/meta-xwayland-private.h
+++ b/src/wayland/meta-xwayland-private.h
@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2013 Intel Corporation
+ *
+ * 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_XWAYLAND_PRIVATE_H
+#define META_XWAYLAND_PRIVATE_H
+
+#include "meta-wayland-private.h"
+
+#include <glib.h>
+
+gboolean
+meta_xwayland_start (MetaWaylandCompositor *compositor);
+
+void
+meta_xwayland_complete_init (void);
+
+void
+meta_xwayland_stop (MetaWaylandCompositor *compositor);
+
+#endif /* META_XWAYLAND_PRIVATE_H */
--- a/src/wayland/meta-xwayland.c
+++ b/src/wayland/meta-xwayland.c
@ -0,0 +1,461 @@
+/*
+ * X Wayland Support
+ *
+ * Copyright (C) 2013 Intel Corporation
+ *
+ * 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 <glib.h>
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+
+#include "meta-xwayland-private.h"
+#include "meta-window-actor-private.h"
+#include "xserver-server-protocol.h"
+
+static void
+xserver_set_window_id (struct wl_client *client,
+                       struct wl_resource *compositor_resource,
+                       struct wl_resource *surface_resource,
+                       guint32 xid)
+{
+  MetaWaylandCompositor *compositor =
+    wl_resource_get_user_data (compositor_resource);
+  MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
+  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)
+    {
+      MetaWindowActor *window_actor =
+        META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
+
+      meta_window_actor_set_wayland_surface (window_actor, surface);
+
+      surface->window = window;
+      window->surface = surface;
+
+      /* If the window is already meant to have focus then the
+       * original attempt to call this in response to the FocusIn
+       * event will have been lost because there was no surface
+       * yet. */
+      if (window->has_focus)
+        meta_wayland_compositor_set_input_focus (compositor, window);
+
+    }
+}
+
+static const struct xserver_interface xserver_implementation = {
+    xserver_set_window_id
+};
+
+static void
+bind_xserver (struct wl_client *client,
+	      void *data,
+              guint32 version,
+              guint32 id)
+{
+  MetaWaylandCompositor *compositor = data;
+
+  /* If it's a different client than the xserver we launched,
+   * don't start the wm. */
+  if (client != compositor->xwayland_client)
+    return;
+
+  compositor->xserver_resource =
+    wl_resource_create (client, &xserver_interface, version, id);
+  wl_resource_set_implementation (compositor->xserver_resource,
+				  &xserver_implementation, compositor, NULL);
+
+  wl_resource_post_event (compositor->xserver_resource,
+                          XSERVER_LISTEN_SOCKET,
+                          compositor->xwayland_abstract_fd);
+
+  wl_resource_post_event (compositor->xserver_resource,
+                          XSERVER_LISTEN_SOCKET,
+                          compositor->xwayland_unix_fd);
+
+  /* Make sure xwayland will recieve the above sockets in a finite
+   * time before unblocking the initialization mainloop since we are
+   * then going to immediately try and connect to those as the window
+   * manager. */
+  wl_client_flush (client);
+
+  /* At this point xwayland is all setup to start accepting
+   * connections so we can quit the transient initialization mainloop
+   * and unblock meta_wayland_init() to continue initializing mutter.
+   * */
+  g_main_loop_quit (compositor->init_loop);
+  compositor->init_loop = NULL;
+}
+
+static char *
+create_lockfile (int display, int *display_out)
+{
+  char *filename;
+  int size;
+  char pid[11];
+  int fd;
+
+  do
+    {
+      char *end;
+      pid_t other;
+
+      filename = g_strdup_printf ("/tmp/.X%d-lock", display);
+      fd = open (filename, O_WRONLY | O_CLOEXEC | O_CREAT | O_EXCL, 0444);
+
+      if (fd < 0 && errno == EEXIST)
+        {
+          fd = open (filename, O_CLOEXEC, O_RDONLY);
+          if (fd < 0 || read (fd, pid, 11) != 11)
+            {
+              const char *msg = strerror (errno);
+              g_warning ("can't read lock file %s: %s", filename, msg);
+              g_free (filename);
+
+              /* ignore error and try the next display number */
+              display++;
+              continue;
+          }
+          close (fd);
+
+          other = strtol (pid, &end, 0);
+          if (end != pid + 10)
+            {
+              g_warning ("can't parse lock file %s", filename);
+              g_free (filename);
+
+              /* ignore error and try the next display number */
+              display++;
+              continue;
+          }
+
+          if (kill (other, 0) < 0 && errno == ESRCH)
+            {
+              g_warning ("unlinking stale lock file %s", filename);
+              if (unlink (filename) < 0)
+                {
+                  const char *msg = strerror (errno);
+                  g_warning ("failed to unlink stale lock file: %s", msg);
+                  display++;
+                }
+              g_free (filename);
+              continue;
+          }
+
+          g_free (filename);
+          display++;
+          continue;
+        }
+      else if (fd < 0)
+        {
+          const char *msg = strerror (errno);
+          g_warning ("failed to create lock file %s: %s", filename , msg);
+          g_free (filename);
+          return NULL;
+        }
+
+      break;
+    }
+  while (1);
+
+  /* Subtle detail: we use the pid of the wayland compositor, not the xserver
+   * in the lock file. */
+  size = snprintf (pid, 11, "%10d\n", getpid ());
+  if (size != 11 || write (fd, pid, 11) != 11)
+    {
+      unlink (filename);
+      close (fd);
+      g_warning ("failed to write pid to lock file %s", filename);
+      g_free (filename);
+      return NULL;
+    }
+
+  close (fd);
+
+  *display_out = display;
+  return filename;
+}
+
+static int
+bind_to_abstract_socket (int display)
+{
+  struct sockaddr_un addr;
+  socklen_t size, name_size;
+  int fd;
+
+  fd = socket (PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0);
+  if (fd < 0)
+    return -1;
+
+  addr.sun_family = AF_LOCAL;
+  name_size = snprintf (addr.sun_path, sizeof addr.sun_path,
+                        "%c/tmp/.X11-unix/X%d", 0, display);
+  size = offsetof (struct sockaddr_un, sun_path) + name_size;
+  if (bind (fd, (struct sockaddr *) &addr, size) < 0)
+    {
+      g_warning ("failed to bind to @%s: %s\n",
+                 addr.sun_path + 1, strerror (errno));
+      close (fd);
+      return -1;
+    }
+
+  if (listen (fd, 1) < 0)
+    {
+      close (fd);
+      return -1;
+    }
+
+  return fd;
+}
+
+static int
+bind_to_unix_socket (int display)
+{
+  struct sockaddr_un addr;
+  socklen_t size, name_size;
+  int fd;
+
+  fd = socket (PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0);
+  if (fd < 0)
+    return -1;
+
+  addr.sun_family = AF_LOCAL;
+  name_size = snprintf (addr.sun_path, sizeof addr.sun_path,
+                        "/tmp/.X11-unix/X%d", display) + 1;
+  size = offsetof (struct sockaddr_un, sun_path) + name_size;
+  unlink (addr.sun_path);
+  if (bind (fd, (struct sockaddr *) &addr, size) < 0)
+    {
+      char *msg = strerror (errno);
+      g_warning ("failed to bind to %s (%s)\n", addr.sun_path, msg);
+      close (fd);
+      return -1;
+    }
+
+  if (listen (fd, 1) < 0) {
+      unlink (addr.sun_path);
+      close (fd);
+      return -1;
+  }
+
+  return fd;
+}
+
+static void
+uncloexec_and_setpgid (gpointer user_data)
+{
+  int fd = GPOINTER_TO_INT (user_data);
+
+  /* Make sure the client end of the socket pair doesn't get closed
+   * when we exec xwayland. */
+  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
+xserver_died (GPid     pid,
+              gint     status,
+              gpointer user_data)
+{
+  if (!WIFEXITED (status))
+    g_error ("X Wayland crashed; aborting");
+  else
+    {
+      /* For now we simply abort if we see the server exit.
+       *
+       * In the future X will only be loaded lazily for legacy X support
+       * but for now it's a hard requirement. */
+      g_error ("Spurious exit of X Wayland server");
+    }
+}
+
+static int
+x_io_error (Display *display)
+{
+  g_error ("Connection to xwayland lost");
+
+  return 0;
+}
+
+gboolean
+meta_xwayland_start (MetaWaylandCompositor *compositor)
+{
+  int display = 0;
+  char *lockfile = NULL;
+  int sp[2];
+  pid_t pid;
+  char **env;
+  char *fd_string;
+  char *display_name;
+  char *args[11];
+  GError *error;
+
+  wl_global_create (compositor->wayland_display,
+		    &xserver_interface, 1,
+		    compositor, bind_xserver);
+
+  do
+    {
+      lockfile = create_lockfile (display, &display);
+      if (!lockfile)
+        {
+         g_warning ("Failed to create an X lock file");
+         return FALSE;
+        }
+
+      compositor->xwayland_abstract_fd = bind_to_abstract_socket (display);
+      if (compositor->xwayland_abstract_fd < 0)
+        {
+          unlink (lockfile);
+
+          if (errno == EADDRINUSE)
+            {
+              display++;
+              continue;
+            }
+          else
+            return FALSE;
+        }
+
+      compositor->xwayland_unix_fd = bind_to_unix_socket (display);
+      if (compositor->xwayland_abstract_fd < 0)
+        {
+          unlink (lockfile);
+          close (compositor->xwayland_abstract_fd);
+          return FALSE;
+        }
+
+      break;
+    }
+  while (1);
+
+  compositor->xwayland_display_index = display;
+  compositor->xwayland_lockfile = lockfile;
+
+  /* We want xwayland to be a wayland client so we make a socketpair to setup a
+   * wayland protocol connection. */
+  if (socketpair (AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, sp) < 0)
+    {
+      g_warning ("socketpair failed\n");
+      unlink (lockfile);
+      return 1;
+    }
+
+  env = g_get_environ ();
+  fd_string = g_strdup_printf ("%d", sp[1]);
+  env = g_environ_setenv (env, "WAYLAND_SOCKET", fd_string, TRUE);
+  g_free (fd_string);
+
+  display_name = g_strdup_printf (":%d",
+                                  compositor->xwayland_display_index);
+
+  args[0] = XWAYLAND_PATH;
+  args[1] = display_name;
+  args[2] = "-wayland";
+  args[3] = "-rootless";
+  args[4] = "-retro";
+  args[5] = "-noreset";
+  args[6] = "-logfile";
+  args[7] = g_build_filename (g_get_user_cache_dir (), "xwayland.log", NULL);
+  args[8] = "-nolisten";
+  args[9] = "all";
+  args[10] = NULL;
+
+  error = NULL;
+  if (g_spawn_async (NULL, /* cwd */
+                     args,
+                     env,
+                     G_SPAWN_LEAVE_DESCRIPTORS_OPEN |
+                     G_SPAWN_DO_NOT_REAP_CHILD |
+                     G_SPAWN_STDOUT_TO_DEV_NULL |
+                     G_SPAWN_STDERR_TO_DEV_NULL,
+                     uncloexec_and_setpgid,
+                     GINT_TO_POINTER (sp[1]),
+                     &pid,
+                     &error))
+    {
+      g_message ("forked X server, pid %d\n", pid);
+
+      close (sp[1]);
+      compositor->xwayland_client =
+        wl_client_create (compositor->wayland_display, sp[0]);
+
+      compositor->xwayland_pid = pid;
+      g_child_watch_add (pid, xserver_died, NULL);
+    }
+  else
+    {
+      g_error ("Failed to fork for xwayland server: %s", error->message);
+    }
+
+  g_strfreev (env);
+  g_free (display_name);
+
+  /* We need to run a mainloop until we know xwayland has a binding
+   * for our xserver interface at which point we can assume it's
+   * ready to start accepting connections. */
+  compositor->init_loop = g_main_loop_new (NULL, FALSE);
+
+  g_main_loop_run (compositor->init_loop);
+
+  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)
+{
+  char path[256];
+
+  snprintf (path, sizeof path, "/tmp/.X%d-lock",
+            compositor->xwayland_display_index);
+  unlink (path);
+  snprintf (path, sizeof path, "/tmp/.X11-unix/X%d",
+            compositor->xwayland_display_index);
+  unlink (path);
+
+  unlink (compositor->xwayland_lockfile);
+}
--- a/src/xrandr.xml
+++ b/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>