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
121 changed files with 17653 additions and 7464 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
@@ -46,11 +46,10 @@ POTFILES
 po/*.pot
 50-metacity-desktop-key.xml
 50-metacity-key.xml
-inlinepixbufs.h
-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
@@ -62,6 +61,7 @@ mutter-message
 mutter-window-demo
 focus-window
 test-attached
+test-focus
 test-gravity
 test-resizing
 test-size-hints
@@ -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/77
+++ b/77
@@ -1,3 +1,80 @@
+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]
+* Don't queue redraws for obscured regions [Adel; #703332]
+* Export timestamp of global keybinding events [Bastien; #704858]
+* Misc bug fixes and cleanups [Jasper, Rico; #703970]
+
+Contributors:
+  Adel Gadllah, Bastien Nocera, Jasper St. Pierre, Rico Tzschichholz
+
+3.9.4
+=====
+* Tweak window shadows [Allan; #702141]
+* Ignore our own focus events for focus prediction [Jasper; #701017]
+* Add API to query if the stage is focused [Jasper; #700735]
+* Add API to query the monitor for a given position [Adel]
+* Don't force attached dialogs to be border-only [Florian; #702764]
+* Allow slicing of backgrounds to avoid texture size limits [Ray; #702283]
+* Miscellaneous bug fixes and cleanups [Adel; #701224, #702564]
+
+Contributors:
+  Allan Day, Adel Gadllah, Florian Müllner, Jasper St. Pierre, Ray Strode
+
+3.9.3
+=====
+* Ensure events are always reported to the grab window [Rui; #701219]
+* Use new clutter_stage_set_paint_callback() function to prevent dropping
+  frames with frame synced toolkits [Owen; #698794]
+
+Contributors:
+  Rui Matos, Owen W. Taylor
+
+3.9.2
+=====
+* Add meta_window_can_close() function [Jasper; #699269]
+* Add support for string-array preferences [Florian; #700223]
+* Fix a potential race condition with _NET_WM_MOVERESIZE [Jasper; #699777]
+* Fix shade window action [Stef; #693714]
+* Remove overlay_group [Giovanni; #700735]
+* Improve tracking of the focus window [Dan, Jasper; #647706]
+* Add API to freeze/unfreeze the keyboard [Rui; #697001]
+* Grab and emit a signal when XK_ISO_Next_Group is pressed [Rui; #697002]
+* Misc bug fixes and cleanups [Dieter, Jasper, Rui; #699636, #700735, #697000]
+
+Contributors:
+  Giovanni Campagna, Rui Matos, Florian Müllner, Jasper St. Pierre,
+  Dieter Verfaillie, Stef Walter, Dan Winship
+
+Translations:
+  Kjartan Maraas [nb], Ján Kyselica [sk]
+
 3.9.1
 =====
 * Fix miscellaneous memory leaks [Pavel; #698710]
--- 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], [1])
+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])

@@ -73,8 +77,10 @@ MUTTER_PC_MODULES="
   cairo >= 1.10.0
   gsettings-desktop-schemas >= 3.7.3
   xcomposite >= 0.2 xfixes xrender xdamage xi >= 1.6.0
-   $CLUTTER_PACKAGE >= 1.13.5
+   $CLUTTER_PACKAGE >= 1.14.3
   cogl-1.0 >= 1.13.3
+   upower-glib > 0.9.11
+   gnome-desktop-3.0
 "

 GLIB_GSETTINGS
@@ -113,14 +119,26 @@ 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
 # GRegex requires Glib-2.14.0
 PKG_CHECK_MODULES(ALL, glib-2.0 >= 2.14.0)
-# gtk_window_set_icon_name requires gtk2+-2.6.0
-PKG_CHECK_MODULES(MUTTER_MESSAGE, gtk+-3.0)
-PKG_CHECK_MODULES(MUTTER_WINDOW_DEMO, gtk+-3.0)

 # Unconditionally use this dir to avoid a circular dep with gnomecc
 GNOME_KEYBINDINGS_KEYSDIR="${datadir}/gnome-control-center/keybindings"
@@ -199,6 +217,16 @@ if test x$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],
@@ -307,9 +335,6 @@ if test "x$found_xsync" = "xyes"; then
 fi

 MUTTER_LIBS="$MUTTER_LIBS $XSYNC_LIBS $RANDR_LIBS $SHAPE_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS -lm"
-MUTTER_MESSAGE_LIBS="$MUTTER_MESSAGE_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
-MUTTER_WINDOW_DEMO_LIBS="$MUTTER_WINDOW_DEMO_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS -lm"
-MUTTER_PROPS_LIBS="$MUTTER_PROPS_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"

 found_sm=no
 case "$MUTTER_LIBS" in
@@ -439,11 +464,10 @@ doc/man/Makefile
 doc/reference/Makefile
 doc/reference/meta-docs.sgml
 src/Makefile
-src/wm-tester/Makefile
-src/libmutter.pc
-src/mutter-plugins.pc
-src/tools/Makefile
+src/libmutter-wayland.pc
 src/compositor/plugins/Makefile
+protocol/Makefile
+data/Makefile
 po/Makefile.in
 ])

@@ -459,7 +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/doc/reference/meta-sections.txt
+++ b/doc/reference/meta-sections.txt
@@ -409,7 +409,6 @@ meta_prefs_get_theme
 meta_prefs_get_titlebar_font
 meta_prefs_get_num_workspaces
 meta_prefs_get_dynamic_workspaces
-meta_prefs_get_application_based
 meta_prefs_get_disable_workarounds
 meta_prefs_get_auto_raise
 meta_prefs_get_auto_raise_delay
--- 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
@@ -23,12 +24,9 @@ src/core/xprops.c
 src/mutter.desktop.in
 src/mutter-wm.desktop.in
 src/org.gnome.mutter.gschema.xml.in
-src/tools/mutter-message.c
 src/ui/frames.c
 src/ui/menu.c
 src/ui/metaaccellabel.c
 src/ui/resizepopup.c
 src/ui/theme.c
 src/ui/theme-parser.c
-src/ui/theme-viewer.c
-
--- a/po/ja.po
+++ b/po/ja.po
@@ -12,8 +12,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: mutter master\n"
 "Report-Msgid-Bugs-To: http://bugzilla.gnome.org/enter_bug.cgi?product=mutter&keywords=I18N+L10N&component=general\n"
-"POT-Creation-Date: 2013-03-22 10:02+0000\n"
-"PO-Revision-Date: 2013-03-25 17:02+0000\n"
+"POT-Creation-Date: 2013-07-30 12:29+0000\n"
+"PO-Revision-Date: 2013-07-30 23:01+0900\n"
 "Last-Translator: Jiro Matsuzawa <jmatsuzawa@gnome.org>\n"
 "Language-Team: Japanese <gnome-translation@gnome.gr.jp>\n"
 "Language: ja\n"
@@ -133,7 +133,7 @@ msgstr "コマンド実行プロンプトを表示する"

 #: ../src/50-mutter-system.xml.in.h:3
 msgid "Show the activities overview"
-msgstr "アクティビティを表示する"
+msgstr "アクティビティ画面を表示する"

 #: ../src/50-mutter-windows.xml.in.h:1
 msgid "Windows"
@@ -213,12 +213,12 @@ msgstr "画面右半分に表示する"

 #. This probably means that a non-WM compositor like xcompmgr is running;
 #. * we have no way to get it to exit
-#: ../src/compositor/compositor.c:568
+#: ../src/compositor/compositor.c:589
 #, c-format
 msgid "Another compositing manager is already running on screen %i on display \"%s\"."
 msgstr "既に別の合成マネージャーがディスプレイ \"%2$s\" 上のスクリーン %1$i で起動中です"

-#: ../src/compositor/meta-background.c:1191
+#: ../src/compositor/meta-background.c:1076
 msgid "background texture could not be created from file"
 msgstr ""

@@ -252,22 +252,22 @@ msgstr "待機する(_W)"
 msgid "_Force Quit"
 msgstr "強制終了する(_F)"

-#: ../src/core/display.c:401
+#: ../src/core/display.c:421
 #, c-format
 msgid "Missing %s extension required for compositing"
 msgstr "ウィンドウの合成に必要な %s という拡張モジュールが存在しません"

-#: ../src/core/display.c:493
+#: ../src/core/display.c:513
 #, c-format
 msgid "Failed to open X Window System display '%s'\n"
 msgstr "X Window System のディスプレイ '%s' のオープンに失敗しました\n"

-#: ../src/core/keybindings.c:935
+#: ../src/core/keybindings.c:1138
 #, c-format
 msgid "Some other program is already using the key %s with modifiers %x as a binding\n"
 msgstr "既にバインディングとして別のプログラムでキー %s (修飾キー %x) を使っています\n"

-#: ../src/core/keybindings.c:1135
+#: ../src/core/keybindings.c:1335
 #, fuzzy, c-format
 msgid "\"%s\" is not a valid accelerator\n"
 msgstr "\"%s\" はフォーカス属性のためには有効な値ではありません"
@@ -328,26 +328,26 @@ msgstr "バージョンを表示する"
 msgid "Mutter plugin to use"
 msgstr "使用する Mutter のプラグイン"

-#: ../src/core/prefs.c:1095
+#: ../src/core/prefs.c:1202
 msgid "Workarounds for broken applications disabled. Some applications may not behave properly.\n"
 msgstr "仕様に準拠していないアプリケーションに対する次善策は無効になっています。一部のアプリケーションは正常に動作しない可能性があります\n"

-#: ../src/core/prefs.c:1170
+#: ../src/core/prefs.c:1277
 #, c-format
 msgid "Could not parse font description \"%s\" from GSettings key %s\n"
 msgstr "GSettings の %2$s キーからフォント名 \"%1$s\" を解析できませんでした\n"

-#: ../src/core/prefs.c:1236
+#: ../src/core/prefs.c:1343
 #, c-format
 msgid "\"%s\" found in configuration database is not a valid value for mouse button modifier\n"
 msgstr "設定データベース中の \"%s\" はマウスボタンの修飾キーとして妥当な値ではありません\n"

-#: ../src/core/prefs.c:1788
+#: ../src/core/prefs.c:1909
 #, c-format
 msgid "\"%s\" found in configuration database is not a valid value for keybinding \"%s\"\n"
 msgstr "設定データベース中の \"%s\" はキーバインド \"%s\" に有効な値ではありません\n"

-#: ../src/core/prefs.c:1887
+#: ../src/core/prefs.c:1999
 #, c-format
 msgid "Workspace %d"
 msgstr "ワークスペース %d"
@@ -465,7 +465,7 @@ msgid "Window manager error: "
 msgstr "ウィンドウマネージャーのエラー: "

 #. first time through
-#: ../src/core/window.c:7596
+#: ../src/core/window.c:7513
 #, c-format
 msgid "Window %s sets SM_CLIENT_ID on itself, instead of on the WM_CLIENT_LEADER window as specified in the ICCCM.\n"
 msgstr "ウィンドウ %s は ICCCM で指定されていたような WM_CLIENT_LEADER ウィンドウの代わりに自分自身で SM_CLIENT_ID を設定しています\n"
@@ -477,7 +477,7 @@ msgstr "ウィンドウ %s は ICCCM で指定されていたような WM_CLIENT
 #. * MWM but not WM_NORMAL_HINTS are basically broken. We complain
 #. * about these apps but make them work.
 #.
-#: ../src/core/window.c:8320
+#: ../src/core/window.c:8237
 #, c-format
 msgid "Window %s sets an MWM hint indicating it isn't resizable, but sets min size %d x %d and max size %d x %d; this doesn't make much sense.\n"
 msgstr "ウィンドウ %s はリサイズ可能ではない MWM ヒント指示を設定していますが、最小サイズ %d x %d と最大サイズ %d x %dも設定しています。これはあまり意味がありません\n"
--- a/po/nb.po
+++ b/po/nb.po
@@ -4,10 +4,10 @@
 #
 msgid ""
 msgstr ""
-"Project-Id-Version: mutter 3.8.x\n"
+"Project-Id-Version: mutter 3.9.x\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2013-04-03 14:10+0200\n"
-"PO-Revision-Date: 2013-04-03 14:11+0200\n"
+"POT-Creation-Date: 2013-08-08 22:14+0200\n"
+"PO-Revision-Date: 2013-05-28 09:48+0200\n"
 "Last-Translator: Kjartan Maraas <kmaraas@gnome.org>\n"
 "Language-Team: Norwegian bokmål <i18n-no@lister.ping.uio.no>\n"
 "Language: \n"
@@ -205,14 +205,14 @@ msgstr "Visning delt til høyre"

 #. This probably means that a non-WM compositor like xcompmgr is running;
 #. * we have no way to get it to exit
-#: ../src/compositor/compositor.c:568
+#: ../src/compositor/compositor.c:589
 #, c-format
 msgid ""
 "Another compositing manager is already running on screen %i on display \"%s"
 "\"."
 msgstr "En annen compositing manager kjører skjerm %i på display «%s»."

-#: ../src/compositor/meta-background.c:1064
+#: ../src/compositor/meta-background.c:1076
 msgid "background texture could not be created from file"
 msgstr "bakgrunnstekstur kunne ikke lages fra fil"

@@ -250,17 +250,17 @@ msgstr "_Vent"
 msgid "_Force Quit"
 msgstr "_Tvungen nedstenging"

-#: ../src/core/display.c:401
+#: ../src/core/display.c:421
 #, c-format
 msgid "Missing %s extension required for compositing"
 msgstr "Mangler utvidelsen %s som kreves for komposittfunksjon"

-#: ../src/core/display.c:493
+#: ../src/core/display.c:513
 #, c-format
 msgid "Failed to open X Window System display '%s'\n"
 msgstr "Feil under åpning av X Window System skjerm «%s»\n"

-#: ../src/core/keybindings.c:935
+#: ../src/core/keybindings.c:1138
 #, c-format
 msgid ""
 "Some other program is already using the key %s with modifiers %x as a "
@@ -269,7 +269,7 @@ msgstr ""
 "Et annet program bruker allerede nøkkelen %s med modifikatorer %x som "
 "binding\n"

-#: ../src/core/keybindings.c:1135
+#: ../src/core/keybindings.c:1335
 #, c-format
 msgid "\"%s\" is not a valid accelerator\n"
 msgstr "«%s» er ikke en gyldig aksellerator\n"
@@ -333,7 +333,7 @@ msgstr "Skriv versjonsnummer"
 msgid "Mutter plugin to use"
 msgstr "Mutter-tillegg som skal brukes"

-#: ../src/core/prefs.c:1095
+#: ../src/core/prefs.c:1202
 msgid ""
 "Workarounds for broken applications disabled. Some applications may not "
 "behave properly.\n"
@@ -341,12 +341,12 @@ msgstr ""
 "Funksjonalitet for å gå rundt ødelagte programmer er deaktivert. Noen "
 "programmer vil kanskje ikke oppføre seg korrekt.\n"

-#: ../src/core/prefs.c:1170
+#: ../src/core/prefs.c:1277
 #, c-format
 msgid "Could not parse font description \"%s\" from GSettings key %s\n"
 msgstr "Kunne ikke tolke skriftbeskrivelsen «%s» fra GSettings-nøkkel %s\n"

-#: ../src/core/prefs.c:1236
+#: ../src/core/prefs.c:1343
 #, c-format
 msgid ""
 "\"%s\" found in configuration database is not a valid value for mouse button "
@@ -355,7 +355,7 @@ msgstr ""
 "«%s» funnet i konfigurasjonsdatabasen er ikke en gyldig verdi for endring av "
 "musknapp\n"

-#: ../src/core/prefs.c:1788
+#: ../src/core/prefs.c:1909
 #, c-format
 msgid ""
 "\"%s\" found in configuration database is not a valid value for keybinding "
@@ -364,7 +364,7 @@ msgstr ""
 "«%s» funnet i konfigurasjonsdatabasen er ikke en gyldig verdi for "
 "tastaturbinding «%s»\n"

-#: ../src/core/prefs.c:1887
+#: ../src/core/prefs.c:1999
 #, c-format
 msgid "Workspace %d"
 msgstr "Arbeidsområde %d"
@@ -492,7 +492,7 @@ msgid "Window manager error: "
 msgstr "Feil i vindushåndterer: "

 #. first time through
-#: ../src/core/window.c:7596
+#: ../src/core/window.c:7513
 #, c-format
 msgid ""
 "Window %s sets SM_CLIENT_ID on itself, instead of on the WM_CLIENT_LEADER "
@@ -508,7 +508,7 @@ msgstr ""
 #. * MWM but not WM_NORMAL_HINTS are basically broken. We complain
 #. * about these apps but make them work.
 #.
-#: ../src/core/window.c:8320
+#: ../src/core/window.c:8237
 #, c-format
 msgid ""
 "Window %s sets an MWM hint indicating it isn't resizable, but sets min size "
@@ -684,7 +684,9 @@ msgstr "Maksimer vinduer automatisk hvis de er nesten like store som skjermen"
 msgid ""
 "If enabled, new windows that are initially the size of the monitor "
 "automatically get maximized."
-msgstr "Nye vinduer som i utgangspunktet er samme størrelse som skjermen vil automatisk bli maksimert hvis denne slås på."
+msgstr ""
+"Nye vinduer som i utgangspunktet er samme størrelse som skjermen vil "
+"automatisk bli maksimert hvis denne slås på."

 #: ../src/org.gnome.mutter.gschema.xml.in.h:19
 msgid "Select window from tab popup"
--- a/po/sk.po
+++ b/po/sk.po
--- 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
@@ -1,15 +1,16 @@
 # Flag build for parallelism; see https://savannah.gnu.org/patch/?6905
 .AUTOPARALLEL:

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

-SUBDIRS=wm-tester tools compositor/plugins
+SUBDIRS=compositor/plugins

 INCLUDES=								\
 	-DCLUTTER_ENABLE_EXPERIMENTAL_API				\
 	-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				\
@@ -139,7 +162,6 @@ libmutter_la_SOURCES =				\
 	meta/common.h				\
 	core/core.h				\
 	ui/ui.h					\
-	inlinepixbufs.h				\
 	ui/frames.c				\
 	ui/frames.h				\
 	ui/menu.c				\
@@ -157,12 +179,26 @@ libmutter_la_SOURCES =				\
 	meta/theme.h				\
 	ui/theme-private.h			\
 	ui/ui.c					\
-	meta/preview-widget.h			\
-	ui/preview-widget.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
@@ -181,6 +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		\
@@ -196,22 +234,18 @@ libmutterinclude_base_headers =		\
 # Excluded from scanning for introspection but installed
 # atomnames.h: macros cause problems for scanning process
 libmutterinclude_extra_headers =		\
-	meta/preview-widget.h			\
 	meta/atomnames.h

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

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

-mutter_theme_viewer_SOURCES=  \
-	ui/theme-viewer.c
+bin_PROGRAMS=mutter-wayland

-bin_PROGRAMS=mutter mutter-theme-viewer
-
-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 $(INTROSPECTION_MAKEFILE)
@@ -233,43 +267,36 @@ typelib_DATA = Meta-$(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

-mutter_theme_viewer_LDADD= $(MUTTER_LIBS) libmutter.la
-
 testboxes_SOURCES = core/testboxes.c
 testgradient_SOURCES = ui/testgradient.c
 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	\
@@ -277,6 +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@
@@ -284,15 +313,8 @@ gsettings_SCHEMAS = org.gnome.mutter.gschema.xml
 convertdir = $(datadir)/GConf/gsettings
 convert_DATA = mutter-schemas.convert

-IMAGES=stock_maximize.png stock_minimize.png stock_delete.png
-VARIABLES=stock_maximize_data $(srcdir)/stock_maximize.png \
-          stock_minimize_data $(srcdir)/stock_minimize.png \
-          stock_delete_data $(srcdir)/stock_delete.png
-
-BUILT_SOURCES = inlinepixbufs.h
 CLEANFILES =					\
-	inlinepixbufs.h				\
-	mutter.desktop				\
+	mutter-wayland.desktop			\
 	mutter-wm.desktop			\
 	org.gnome.mutter.gschema.xml		\
 	$(xml_DATA)				\
@@ -300,12 +322,9 @@ CLEANFILES =					\
 	$(typelib_DATA)				\
 	$(gir_DATA)

-inlinepixbufs.h: $(IMAGES)
-	$(GDK_PIXBUF_CSOURCE) --raw --build-list $(VARIABLES) >$(srcdir)/inlinepixbufs.h
-
 pkgconfigdir = $(libdir)/pkgconfig

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

 EXTRA_DIST=$(desktopfiles_files) 	\
 	$(wmproperties_files)		\
@@ -315,12 +334,11 @@ EXTRA_DIST=$(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

-BUILT_SOURCES += $(mutter_built_sources)
+BUILT_SOURCES = $(mutter_built_sources)
 MUTTER_STAMP_FILES = stamp-mutter-enum-types.h
 CLEANFILES += $(MUTTER_STAMP_FILES)

@@ -342,3 +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
@@ -53,17 +53,15 @@
 *
 * # Containers #
 *
- * There's three containers in the stage that can be used to place actors, here
+ * There's two containers in the stage that are used to place window actors, here
 * are listed in the order in which they are painted:
 *
 * - window group, accessible with meta_get_window_group_for_screen()
 * - top window group, accessible with meta_get_top_window_group_for_screen()
- * - overlay group, accessible with meta_get_overlay_group_for_screen()
 *
 * Mutter will place actors representing windows in the window group, except for
 * override-redirect windows (ie. popups and menus) which will be placed in the
- * top window group. Mutter won't put any actors in the overlay group, but it's
- * intended for compositors to place there panel, dashes, status bars, etc.
+ * top window group.
 */

 #include <config.h>
@@ -86,6 +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>

@@ -174,7 +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
@@ -255,23 +254,6 @@ meta_get_stage_for_screen (MetaScreen *screen)
  return info->stage;
 }

-/**
- * meta_get_overlay_group_for_screen:
- * @screen: a #MetaScreen
- *
- * Returns: (transfer none): The overlay group corresponding to @screen
- */
-ClutterActor *
-meta_get_overlay_group_for_screen (MetaScreen *screen)
-{
-  MetaCompScreen *info = meta_screen_get_compositor_data (screen);
-
-  if (!info)
-    return NULL;
-
-  return info->overlay_group;
-}
-
 /**
 * meta_get_window_group_for_screen:
 * @screen: a #MetaScreen
@@ -346,29 +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
@@ -388,11 +378,55 @@ meta_empty_stage_input_region (MetaScreen *screen)
  meta_set_stage_input_region (screen, region);
 }

+void
+meta_focus_stage_window (MetaScreen *screen,
+                         guint32     timestamp)
+{
+  ClutterStage *stage;
+  Window window;
+
+  stage = CLUTTER_STAGE (meta_get_stage_for_screen (screen));
+  if (!stage)
+    return;
+
+  if (!meta_is_wayland_compositor ())
+    {
+      window = clutter_x11_get_stage_window (stage);
+
+      if (window == None)
+        return;
+
+      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;
+
+  stage = CLUTTER_STAGE (meta_get_stage_for_screen (screen));
+  if (!stage)
+    return FALSE;
+
+  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)
 {
@@ -403,10 +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;

@@ -514,20 +557,20 @@ meta_check_end_modal (MetaScreen *screen)
    {
      meta_end_modal_for_plugin (screen,
                                   compositor->modal_plugin,
-                                   CurrentTime);
+
+                                 CurrentTime);
    }
 }

-static gboolean
-after_stage_paint (gpointer data)
+static void
+after_stage_paint (ClutterStage *stage,
+                   gpointer      data)
 {
  MetaCompScreen *info = (MetaCompScreen*) data;
  GList *l;

  for (l = info->windows; l; l = l->next)
    meta_window_actor_post_paint (l->data);
-
-  return TRUE;
 }

 static void
@@ -541,6 +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
@@ -583,6 +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))
@@ -595,7 +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;

@@ -606,106 +662,132 @@ 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;

-  clutter_threads_add_repaint_func_full (CLUTTER_REPAINT_FLAGS_POST_PAINT,
-                                         after_stage_paint,
-                                         info, NULL);
+      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,
+                                    info,
+                                    NULL);

  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);
-    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);
-  info->overlay_group = clutter_actor_new ();

  clutter_actor_add_child (info->stage, info->window_group);
  clutter_actor_add_child (info->stage, info->top_window_group);
-  clutter_actor_add_child (info->stage, info->overlay_group);

  info->plugin_mgr = meta_plugin_manager_new (screen);

-  /*
-   * Delay the creation of the overlay window as long as we can, to avoid
-   * blanking out the screen. This means that during the plugin loading, the
-   * overlay window is not accessible; if the plugin needs to access it
-   * directly, it should hook into the "show" signal on stage, and do
-   * its stuff there.
-   */
-  info->output = get_output_window (screen);
-  XReparentWindow (xdisplay, xwin, info->output, 0, 0);
-
- /* 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);

-  clutter_actor_show (info->overlay_group);
+      /* 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);

-  /* Map overlay window before redirecting windows offscreen so we catch their
-   * contents until we show the stage.
-   */
-  XMapWindow (xdisplay, info->output);
+      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;
+        }

-  redirect_windows (compositor, screen);
+      /* 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);
+    }
 }

 /*
@@ -777,15 +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);
@@ -972,7 +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
@@ -991,7 +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
@@ -1335,20 +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
@@ -1412,29 +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)
@@ -1566,8 +1673,10 @@ void
 meta_enable_unredirect_for_screen (MetaScreen *screen)
 {
  MetaCompScreen *info = meta_screen_get_compositor_data (screen);
-  if (info != NULL)
-   info->disable_unredirect_count = MAX(0, info->disable_unredirect_count - 1);
+  if (info != NULL && info->disable_unredirect_count == 0)
+    g_warning ("Called enable_unredirect_for_screen while unredirection is enabled.");
+  if (info != NULL && info->disable_unredirect_count > 0)
+   info->disable_unredirect_count = info->disable_unredirect_count - 1;
 }

 #define FLASH_TIME_MS 50
--- 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;
@@ -1060,7 +1059,7 @@ meta_background_load_file_finish (MetaBackground  *self,

  texture = cogl_texture_new_from_data (width,
                                        height,
-                                        COGL_TEXTURE_NO_SLICING,
+                                        COGL_TEXTURE_NO_ATLAS,
                                        has_alpha ?
                                        COGL_PIXEL_FORMAT_RGBA_8888 :
                                        COGL_PIXEL_FORMAT_RGB_888,
@@ -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-shadow-factory.c
+++ b/src/compositor/meta-shadow-factory.c
@@ -123,12 +123,12 @@ static guint signals[LAST_SIGNAL] = { 0 };
 /* The first element in this array also defines the default parameters
 * for newly created classes */
 MetaShadowClassInfo default_shadow_classes[] = {
-  { "normal",       { 6, -1, 0, 3, 255 }, { 3, -1, 0, 3, 128 } },
-  { "dialog",       { 6, -1, 0, 3, 255 }, { 3, -1, 0, 3, 128 } },
-  { "modal_dialog", { 6, -1, 0, 1, 255 }, { 3, -1, 0, 3, 128 } },
-  { "utility",      { 3, -1, 0, 1, 255 }, { 3, -1, 0, 1, 128 } },
-  { "border",       { 6, -1, 0, 3, 255 }, { 3, -1, 0, 3, 128 } },
-  { "menu",         { 6, -1, 0, 3, 255 }, { 3, -1, 0, 0, 128 } },
+  { "normal",       { 6, -1, 0, 3, 128 }, { 3, -1, 0, 3, 32 } },
+  { "dialog",       { 6, -1, 0, 3, 128 }, { 3, -1, 0, 3, 32 } },
+  { "modal_dialog", { 6, -1, 0, 1, 128 }, { 3, -1, 0, 3, 32 } },
+  { "utility",      { 3, -1, 0, 1, 128 }, { 3, -1, 0, 1, 32 } },
+  { "border",       { 6, -1, 0, 3, 128 }, { 3, -1, 0, 3, 32 } },
+  { "menu",         { 6, -1, 0, 3, 128 }, { 3, -1, 0, 0, 32 } },

  { "popup-menu",    { 1, -1, 0, 1, 128 }, { 1, -1, 0, 1, 128 } },

--- 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
--- 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
 {
@@ -91,14 +92,15 @@ meta_window_group_paint (ClutterActor *actor)
 {
  cairo_region_t *visible_region;
  ClutterActor *stage;
+  ClutterActorIter iter;
+  ClutterActor *child;
  cairo_rectangle_int_t visible_rect;
-  GList *children, *l;
  int paint_x_origin, paint_y_origin;
  int actor_x_origin, actor_y_origin;
  int paint_x_offset, paint_y_offset;

  MetaWindowGroup *window_group = META_WINDOW_GROUP (actor);
-  MetaCompScreen *info = meta_screen_get_compositor_data (window_group->screen);
+  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
@@ -123,13 +125,6 @@ meta_window_group_paint (ClutterActor *actor)
  paint_x_offset = paint_x_origin - actor_x_origin;
  paint_y_offset = paint_y_origin - actor_y_origin;

-  /* We walk the list from top to bottom (opposite of painting order),
-   * and subtract the opaque area of each window out of the visible
-   * region that we pass to the windows below.
-   */
-  children = clutter_actor_get_children (actor);
-  children = g_list_reverse (children);
-
  /* Get the clipped redraw bounds from Clutter so that we can avoid
   * painting shadows on windows that don't need to be painted in this
   * frame. In the case of a multihead setup with mismatched monitor
@@ -142,21 +137,32 @@ 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);
+        }
    }

-  for (l = children; l; l = l->next)
+  /* We walk the list from top to bottom (opposite of painting order),
+   * and subtract the opaque area of each window out of the visible
+   * region that we pass to the windows below.
+   */
+  clutter_actor_iter_init (&iter, actor);
+  while (clutter_actor_iter_prev (&iter, &child))
    {
-      if (!CLUTTER_ACTOR_IS_VISIBLE (l->data))
+      if (!CLUTTER_ACTOR_IS_VISIBLE (child))
        continue;

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

      /* If an actor has effects applied, then that can change the area
@@ -175,12 +181,12 @@ meta_window_group_paint (ClutterActor *actor)
       * as well for the same reason, but omitted for simplicity in the
       * hopes that no-one will do that.
       */
-      if (clutter_actor_has_effects (l->data))
+      if (clutter_actor_has_effects (child))
        continue;

-      if (META_IS_WINDOW_ACTOR (l->data))
+      if (META_IS_WINDOW_ACTOR (child))
        {
-          MetaWindowActor *window_actor = l->data;
+          MetaWindowActor *window_actor = META_WINDOW_ACTOR (child);
          int x, y;

          if (!meta_actor_is_untransformed (CLUTTER_ACTOR (window_actor), &x, &y))
@@ -204,13 +210,12 @@ meta_window_group_paint (ClutterActor *actor)
          meta_window_actor_set_visible_region_beneath (window_actor, visible_region);
          cairo_region_translate (visible_region, x, y);
        }
-      else if (META_IS_BACKGROUND_ACTOR (l->data) ||
-               META_IS_BACKGROUND_GROUP (l->data))
+      else if (META_IS_BACKGROUND_ACTOR (child) ||
+               META_IS_BACKGROUND_GROUP (child))
        {
-          ClutterActor *background_actor = l->data;
          int x, y;

-          if (!meta_actor_is_untransformed (CLUTTER_ACTOR (background_actor), &x, &y))
+          if (!meta_actor_is_untransformed (child, &x, &y))
            continue;

          x += paint_x_offset;
@@ -218,10 +223,10 @@ meta_window_group_paint (ClutterActor *actor)

          cairo_region_translate (visible_region, - x, - y);

-          if (META_IS_BACKGROUND_GROUP (background_actor))
-            meta_background_group_set_visible_region (META_BACKGROUND_GROUP (background_actor), visible_region);
+          if (META_IS_BACKGROUND_GROUP (child))
+            meta_background_group_set_visible_region (META_BACKGROUND_GROUP (child), visible_region);
          else
-            meta_background_actor_set_visible_region (META_BACKGROUND_ACTOR (background_actor), visible_region);
+            meta_background_actor_set_visible_region (META_BACKGROUND_ACTOR (child), visible_region);
          cairo_region_translate (visible_region, x, y);
        }
    }
@@ -233,21 +238,20 @@ meta_window_group_paint (ClutterActor *actor)
  /* Now that we are done painting, unset the visible regions (they will
   * mess up painting clones of our actors)
   */
-  for (l = children; l; l = l->next)
+  clutter_actor_iter_init (&iter, actor);
+  while (clutter_actor_iter_next (&iter, &child))
    {
-      if (META_IS_WINDOW_ACTOR (l->data))
+      if (META_IS_WINDOW_ACTOR (child))
        {
-          MetaWindowActor *window_actor = l->data;
+          MetaWindowActor *window_actor = META_WINDOW_ACTOR (child);
          meta_window_actor_reset_visible_regions (window_actor);
        }
-      else if (META_IS_BACKGROUND_ACTOR (l->data))
+      else if (META_IS_BACKGROUND_ACTOR (child))
        {
-          MetaBackgroundActor *background_actor = l->data;
+          MetaBackgroundActor *background_actor = META_BACKGROUND_ACTOR (child);
          meta_background_actor_set_visible_region (background_actor, NULL);
        }
    }
-
-  g_list_free (children);
 }

 static gboolean
--- 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;
@@ -103,19 +111,21 @@ struct _MetaDisplay
 #include <meta/atomnames.h>
 #undef item

-  /* This is the actual window from focus events,
-   * not the one we last set
+  /* The window and serial of the most recent FocusIn event. */
+  Window server_focus_window;
+  gulong server_focus_serial;
+
+  /* Our best guess as to the "currently" focused window (that is, the
+   * window that we expect will be focused at the point when the X
+   * server processes our next request), and the serial of the request
+   * or event that caused this.
   */
  MetaWindow *focus_window;
-
-  /* window we are expecting a FocusIn event for or the current focus
-   * window if we are not expecting any FocusIn/FocusOut events; not
-   * perfect because applications can call XSetInputFocus directly.
-   * (It could also be messed up if a timestamp later than current
-   * time is sent to meta_display_set_input_focus_window, though that
-   * would be a programming error).  See bug 154598 for more info.
-   */
-  MetaWindow *expected_focus_window;
+  /* For windows we've focused that don't necessarily have an X window,
+   * 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;
@@ -239,6 +249,8 @@ struct _MetaDisplay
  unsigned int meta_mask;
  MetaKeyCombo overlay_key_combo;
  gboolean overlay_key_only_pressed;
+  MetaKeyCombo *iso_next_group_combos;
+  int n_iso_next_group_combos;
  
  /* Monitor cache */
  unsigned int monitor_cache_invalidated : 1;
@@ -457,14 +469,25 @@ void meta_display_remove_autoraise_callback (MetaDisplay *display);
 void meta_display_overlay_key_activate (MetaDisplay *display);
 void meta_display_accelerator_activate (MetaDisplay *display,
                                        guint        action,
-                                        guint        deviceid);
+                                        guint        deviceid,
+                                        guint        timestamp);
+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,
+                                           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    ||  \
@@ -139,6 +142,7 @@ enum
 {
  OVERLAY_KEY,
  ACCELERATOR_ACTIVATED,
+  MODIFIERS_ACCELERATOR_ACTIVATED,
  FOCUS_WINDOW,
  WINDOW_CREATED,
  WINDOW_DEMANDS_ATTENTION,
@@ -253,7 +257,26 @@ meta_display_class_init (MetaDisplayClass *klass)
                  G_SIGNAL_RUN_LAST,
                  0,
                  NULL, NULL, NULL,
-                  G_TYPE_NONE, 2, G_TYPE_UINT, G_TYPE_UINT);
+                  G_TYPE_NONE, 3, G_TYPE_UINT, G_TYPE_UINT, G_TYPE_UINT);
+
+  /**
+   * MetaDisplay::modifiers-accelerator-activated:
+   * @display: the #MetaDisplay instance
+   *
+   * The ::modifiers-accelerator-activated signal will be emitted when
+   * a special modifiers-only keybinding is activated.
+   *
+   * Returns: %TRUE means that the keyboard device should remain
+   *    frozen and %FALSE for the default behavior of unfreezing the
+   *    keyboard.
+   */
+  display_signals[MODIFIERS_ACCELERATOR_ACTIVATED] =
+    g_signal_new ("modifiers-accelerator-activated",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_LAST,
+                  0,
+                  g_signal_accumulator_first_wins, NULL, NULL,
+                  G_TYPE_BOOLEAN, 0);

  display_signals[WINDOW_CREATED] =
    g_signal_new ("window-created",
@@ -495,6 +518,9 @@ meta_display_open (void)
      return FALSE;
    }

+  if (meta_is_wayland_compositor ())
+    meta_xwayland_complete_init ();
+
  if (meta_is_syncing ())
    XSynchronize (xdisplay, True);
  
@@ -519,7 +545,9 @@ meta_display_open (void)
  the_display->autoraise_timeout_id = 0;
  the_display->autoraise_window = NULL;
  the_display->focus_window = NULL;
-  the_display->expected_focus_window = NULL;
+  the_display->focus_serial = 0;
+  the_display->server_focus_window = None;
+  the_display->server_focus_serial = 0;
  the_display->grab_old_window_stacking = NULL;

  the_display->mouse_mode = TRUE; /* Only relevant for mouse or sloppy focus */
@@ -909,8 +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;
    }
@@ -952,8 +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;
@@ -1445,6 +1491,17 @@ meta_display_get_current_time (MetaDisplay *display)
  return display->current_time;
 }

+static Bool
+find_timestamp_predicate (Display  *xdisplay,
+                          XEvent   *ev,
+                          XPointer  arg)
+{
+  MetaDisplay *display = (MetaDisplay *) arg;
+
+  return (ev->type == PropertyNotify &&
+          ev->xproperty.atom == display->atom__MUTTER_TIMESTAMP_PING);
+}
+
 /* Get a timestamp, even if it means a roundtrip */
 guint32
 meta_display_get_current_time_roundtrip (MetaDisplay *display)
@@ -1456,17 +1513,13 @@ meta_display_get_current_time_roundtrip (MetaDisplay *display)
    {
      XEvent property_event;

-      /* Using the property XA_PRIMARY because it's safe; nothing
-       * would use it as a property. The type doesn't matter.
-       */
-      XChangeProperty (display->xdisplay,
-                       display->timestamp_pinging_window,
-                       XA_PRIMARY, XA_STRING, 8,
-                       PropModeAppend, NULL, 0);
-      XWindowEvent (display->xdisplay,
-                    display->timestamp_pinging_window,
-                    PropertyChangeMask,
-                    &property_event);
+      XChangeProperty (display->xdisplay, display->timestamp_pinging_window,
+                       display->atom__MUTTER_TIMESTAMP_PING,
+                       XA_STRING, 8, PropModeAppend, NULL, 0);
+      XIfEvent (display->xdisplay,
+                &property_event,
+                find_timestamp_predicate,
+                (XPointer) display);
      timestamp = property_event.xproperty.time;
    }

@@ -1632,12 +1685,12 @@ meta_display_mouse_mode_focus (MetaDisplay *display,
       * alternative mechanism works great.
       */
      if (meta_prefs_get_focus_mode() == G_DESKTOP_FOCUS_MODE_MOUSE &&
-          display->expected_focus_window != NULL)
+          display->focus_window != NULL)
        {
          meta_topic (META_DEBUG_FOCUS,
                      "Unsetting focus from %s due to mouse entering "
                      "the DESKTOP window\n",
-                      display->expected_focus_window->desc);
+                      display->focus_window->desc);
          meta_display_focus_the_no_focus_window (display,
                                                  window->screen,
                                                  timestamp);
@@ -1851,11 +1904,285 @@ get_input_event (MetaDisplay *display,
  return NULL;
 }

+static void
+update_focus_window (MetaDisplay   *display,
+                     MetaFocusType  type,
+                     MetaWindow    *window,
+                     Window         xwindow,
+                     gulong         serial)
+{
+  MetaWaylandCompositor *compositor;
+
+  display->focus_serial = serial;
+
+  if (display->focus_xwindow == xwindow &&
+      display->focus_type == type &&
+      display->focus_window == window)
+    return;
+
+  if (display->focus_window)
+    {
+      MetaWindow *previous;
+
+      meta_topic (META_DEBUG_FOCUS,
+                  "%s is now the previous focus window due to being focused out or unmapped\n",
+                  display->focus_window->desc);
+
+      /* Make sure that signals handlers invoked by
+       * meta_window_set_focused_internal() don't see
+       * display->focus_window->has_focus == FALSE
+       */
+      previous = display->focus_window;
+      display->focus_window = NULL;
+      display->focus_xwindow = None;
+
+      meta_window_set_focused_internal (previous, FALSE);
+    }
+
+  display->focus_type = type;
+  display->focus_window = window;
+  display->focus_xwindow = xwindow;
+
+  if (display->focus_window)
+    {
+      meta_topic (META_DEBUG_FOCUS, "* Focus --> %s with serial %lu\n",
+                  display->focus_window->desc, serial);
+      meta_window_set_focused_internal (display->focus_window, TRUE);
+    }
+  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);
+}
+
+static gboolean
+timestamp_too_old (MetaDisplay *display,
+                   guint32     *timestamp)
+{
+  /* FIXME: If Soeren's suggestion in bug 151984 is implemented, it will allow
+   * us to sanity check the timestamp here and ensure it doesn't correspond to
+   * a future time (though we would want to rename to
+   * timestamp_too_old_or_in_future).
+   */
+
+  if (*timestamp == CurrentTime)
+    {
+      *timestamp = meta_display_get_current_time_roundtrip (display);
+      return FALSE;
+    }
+  else if (XSERVER_TIME_IS_BEFORE (*timestamp, display->last_focus_time))
+    {
+      if (XSERVER_TIME_IS_BEFORE (*timestamp, display->last_user_time))
+        return TRUE;
+      else
+        {
+          *timestamp = display->last_focus_time;
+          return FALSE;
+        }
+    }
+
+  return FALSE;
+}
+
+static void
+request_xserver_input_focus_change (MetaDisplay   *display,
+                                    MetaScreen    *screen,
+                                    MetaFocusType  type,
+                                    MetaWindow    *meta_window,
+                                    Window         xwindow,
+                                    guint32        timestamp)
+{
+  gulong serial;
+
+  if (timestamp_too_old (display, &timestamp))
+    return;
+
+  meta_error_trap_push (display);
+
+  /* In order for mutter to know that the focus request succeeded, we track
+   * the serial of the "focus request" we made, but if we take the serial
+   * of the XSetInputFocus request, then there's no way to determine the
+   * difference between focus events as a result of the SetInputFocus and
+   * focus events that other clients send around the same time. Ensure that
+   * we know which is which by making two requests that the server will
+   * process at the same time.
+   */
+  meta_display_grab (display);
+
+  serial = XNextRequest (display->xdisplay);
+
+  XSetInputFocus (display->xdisplay,
+                  xwindow,
+                  RevertToPointerRoot,
+                  timestamp);
+
+  XChangeProperty (display->xdisplay, display->timestamp_pinging_window,
+                   display->atom__MUTTER_FOCUS_SET,
+                   XA_STRING, 8, PropModeAppend, NULL, 0);
+
+  meta_display_ungrab (display);
+
+  update_focus_window (display,
+                       type,
+                       meta_window,
+                       xwindow,
+                       serial);
+
+  meta_error_trap_pop (display);
+
+  display->last_focus_time = timestamp;
+  display->active_screen = screen;
+
+  if (meta_window == NULL || meta_window != display->autoraise_window)
+    meta_display_remove_autoraise_callback (display);
+}
+
+static void
+handle_window_focus_event (MetaDisplay  *display,
+                           MetaWindow   *window,
+                           XIEnterEvent *event,
+                           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
+   */
+  if (window)
+    {
+      if (event->event == window->xwindow)
+        window_type = "client window";
+      else if (window->frame && event->event == window->frame->xwindow)
+        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";
+      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",
+              event->evtype == XI_FocusIn ? "in" :
+              event->evtype == XI_FocusOut ? "out" :
+              "???",
+              window ? window->desc : "",
+              event->event, window_type,
+              meta_event_mode_to_string (event->mode),
+              meta_event_detail_to_string (event->mode),
+              event->serial);
+#endif
+
+  /* FIXME our pointer tracking is broken; see how
+   * gtk+/gdk/x11/gdkevents-x11.c or XFree86/xc/programs/xterm/misc.c
+   * for how to handle it the correct way.  In brief you need to track
+   * pointer focus and regular focus, and handle EnterNotify in
+   * PointerRoot mode with no window manager.  However as noted above,
+   * accurate focus tracking will break things because we want to keep
+   * windows "focused" when using keybindings on them, and also we
+   * sometimes "focus" a window by focusing its frame or
+   * no_focus_window; so this all needs rethinking massively.
+   *
+   * My suggestion is to change it so that we clearly separate
+   * actual keyboard focus tracking using the xterm algorithm,
+   * and mutter's "pretend" focus window, and go through all
+   * the code and decide which one should be used in each place;
+   * a hard bit is deciding on a policy for that.
+   *
+   * http://bugzilla.gnome.org/show_bug.cgi?id=90382
+   */
+
+  /* We ignore grabs, though this is questionable. It may be better to
+   * increase the intelligence of the focus window tracking.
+   *
+   * The problem is that keybindings for windows are done with
+   * XGrabKey, which means focus_window disappears and the front of
+   * the MRU list gets confused from what the user expects once a
+   * keybinding is used.
+   */
+
+  if (event->mode == XINotifyGrab ||
+      event->mode == XINotifyUngrab ||
+      /* From WindowMaker, ignore all funky pointer root events */
+      event->detail > XINotifyNonlinearVirtual)
+    {
+      meta_topic (META_DEBUG_FOCUS,
+                  "Ignoring focus event generated by a grab or other weirdness\n");
+      return;
+    }
+
+  if (event->evtype == XI_FocusIn)
+    {
+      display->server_focus_window = event->event;
+      display->server_focus_serial = serial;
+      focus_window = window;
+    }
+  else if (event->evtype == XI_FocusOut)
+    {
+      if (event->detail == XINotifyInferior)
+        {
+          /* This event means the client moved focus to a subwindow */
+          meta_topic (META_DEBUG_FOCUS,
+                      "Ignoring focus out with NotifyInferior\n");
+          return;
+        }
+
+      display->server_focus_window = None;
+      display->server_focus_serial = serial;
+      focus_window = NULL;
+    }
+  else
+    g_return_if_reached ();
+
+  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);
+    }
+}
+
 /**
- * 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.
@@ -1865,21 +2192,20 @@ get_input_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);
@@ -1888,12 +2214,40 @@ 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;
  display->current_time = event_get_time (display, event);
  display->monitor_cache_invalidated = TRUE;
-  
+
+  if (event->xany.serial > display->focus_serial &&
+      display->focus_window &&
+      display->focus_window->xwindow != display->server_focus_window)
+    {
+      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);
@@ -1966,6 +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 */

@@ -1980,32 +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
        {
@@ -2213,30 +2546,12 @@ event_callback (XEvent   *event,
                  /* This is from our synchronous grab since
                   * it has no modifiers and was on the client window
                   */
-                  int mode;
-              
-                  /* When clicking a different app in click-to-focus
-                   * in application-based mode, and the different
-                   * app is not a dock or desktop, eat the focus click.
-                   */
-                  if (meta_prefs_get_focus_mode () == G_DESKTOP_FOCUS_MODE_CLICK &&
-                      meta_prefs_get_application_based () &&
-                      !window->has_focus &&
-                      window->type != META_WINDOW_DOCK &&
-                      window->type != META_WINDOW_DESKTOP &&
-                      (display->focus_window == NULL ||
-                       !meta_window_same_application (window,
-                                                      display->focus_window)))
-                    mode = XIAsyncDevice; /* eat focus click */
-                  else
-                    mode = XIReplayDevice; /* give event back */

-                  meta_verbose ("Allowing events mode %s time %u\n",
-                                mode == AsyncPointer ? "AsyncPointer" : "ReplayPointer",
+                  meta_verbose ("Allowing events time %u\n",
                                (unsigned int)device_event->time);

                  XIAllowEvents (display->xdisplay, device_event->deviceid,
-                                 mode, device_event->time);
+                                 XIReplayDevice, device_event->time);
                }

              if (begin_move && window->has_move_func)
@@ -2350,40 +2665,19 @@ event_callback (XEvent   *event,
          break;
        case XI_FocusIn:
        case XI_FocusOut:
-          if (window)
-            {
-              meta_window_notify_focus (window, enter_event);
-            }
-          else if (meta_display_xwindow_is_a_no_focus_window (display,
-                                                              enter_event->event))
-            {
-              meta_topic (META_DEBUG_FOCUS,
-                          "Focus %s event received on no_focus_window 0x%lx "
-                          "mode %s detail %s\n",
-                          enter_event->evtype == XI_FocusIn ? "in" :
-                          enter_event->evtype == XI_FocusOut ? "out" :
-                          "???",
-                          enter_event->event,
-                          meta_event_mode_to_string (enter_event->mode),
-                          meta_event_detail_to_string (enter_event->detail));
-            }
-          else
+          /* libXi does not properly copy the serial to the XIEnterEvent, so pull it
+           * from the parent XAnyEvent.
+           * See: https://bugs.freedesktop.org/show_bug.cgi?id=64687
+           */
+          handle_window_focus_event (display, window, enter_event, event->xany.serial);
+          if (!window)
            {
+              /* Check if the window is a root window. */
              MetaScreen *screen =
                meta_display_screen_for_root(display,
                                             enter_event->event);
              if (screen == NULL)
                break;
-
-              meta_topic (META_DEBUG_FOCUS,
-                          "Focus %s event received on root window 0x%lx "
-                          "mode %s detail %s\n",
-                          enter_event->evtype == XI_FocusIn ? "in" :
-                          enter_event->evtype == XI_FocusOut ? "out" :
-                          "???",
-                          enter_event->event,
-                          meta_event_mode_to_string (enter_event->mode),
-                          meta_event_detail_to_string (enter_event->detail));
          
              if (enter_event->evtype == XI_FocusIn &&
                  enter_event->mode == XINotifyDetailNone)
@@ -2521,13 +2815,6 @@ event_callback (XEvent   *event,
                                  window->unmaps_pending);
                    }
                }
-
-              /* Unfocus on UnmapNotify, do this after the possible
-               * window_free above so that window_free can see if window->has_focus
-               * and move focus to another window
-               */
-              if (window)
-                meta_window_lost_focus (window);
            }
          break;
        case MapNotify:
@@ -2587,32 +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 */
@@ -2807,27 +3072,6 @@ event_callback (XEvent   *event,
                          meta_workspace_focus_default_window (screen->active_workspace, NULL, timestamp);
                        }
                    }
-                  else if (event->xclient.message_type ==
-                           display->atom__MUTTER_RELOAD_THEME_MESSAGE)
-                    {
-                      meta_verbose ("Received reload theme request\n");
-                      meta_ui_set_current_theme (meta_prefs_get_theme (),
-                                                 TRUE);
-                      meta_display_retheme_all ();
-                    }
-                  else if (event->xclient.message_type ==
-                           display->atom__MUTTER_SET_KEYBINDINGS_MESSAGE)
-                    {
-                      meta_verbose ("Received set keybindings request = %d\n",
-                                    (int) event->xclient.data.l[0]);
-                      meta_set_keybindings_disabled (!event->xclient.data.l[0]);
-                    }
-                  else if (event->xclient.message_type ==
-                           display->atom__MUTTER_TOGGLE_VERBOSE)
-                    {
-                      meta_verbose ("Received toggle verbose message\n");
-                      meta_set_verbose (!meta_is_verbose ());
-                    }
                  else if (event->xclient.message_type ==
                           display->atom_WM_PROTOCOLS) 
                    {
@@ -2924,6 +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
@@ -3537,6 +3805,12 @@ meta_spew_event (MetaDisplay *display,
  if (event->type == (display->damage_event_base + XDamageNotify))
    return;

+  if (event->type == (display->xsync_event_base + XSyncAlarmNotify))
+    return;
+
+  if (event->type == PropertyNotify && event->xproperty.atom == display->atom__NET_WM_USER_TIME)
+    return;
+
  input_event = get_input_event (display, event);

  if (input_event)
@@ -5561,98 +5835,82 @@ sanity_check_timestamps (MetaDisplay *display,
    }
 }

-static gboolean
-timestamp_too_old (MetaDisplay *display,
-                   MetaWindow  *window,
-                   guint32     *timestamp)
-{
-  /* FIXME: If Soeren's suggestion in bug 151984 is implemented, it will allow
-   * us to sanity check the timestamp here and ensure it doesn't correspond to
-   * a future time (though we would want to rename to 
-   * timestamp_too_old_or_in_future).
-   */
-
-  if (*timestamp == CurrentTime)
-    {
-      meta_warning ("Got a request to focus %s with a timestamp of 0.  This "
-                    "shouldn't happen!\n",
-                    window ? window->desc : "the no_focus_window");
-      *timestamp = meta_display_get_current_time_roundtrip (display);
-      return FALSE;
-    }
-  else if (XSERVER_TIME_IS_BEFORE (*timestamp, display->last_focus_time))
-    {
-      if (XSERVER_TIME_IS_BEFORE (*timestamp, display->last_user_time))
-        {
-          meta_topic (META_DEBUG_FOCUS,
-                      "Ignoring focus request for %s since %u "
-                      "is less than %u and %u.\n",
-                      window ? window->desc : "the no_focus_window",
-                      *timestamp,
-                      display->last_user_time,
-                      display->last_focus_time);
-          return TRUE;
-        }
-      else
-        {
-          meta_topic (META_DEBUG_FOCUS,
-                      "Received focus request for %s which is newer than most "
-                      "recent user_time, but less recent than "
-                      "last_focus_time (%u < %u < %u); adjusting "
-                      "accordingly.  (See bug 167358)\n",
-                      window ? window->desc : "the no_focus_window",
-                      display->last_user_time,
-                      *timestamp,
-                      display->last_focus_time);
-          *timestamp = display->last_focus_time;
-          return FALSE;
-        }
-    }
-
-  return FALSE;
-}
-
 void
 meta_display_set_input_focus_window (MetaDisplay *display, 
                                     MetaWindow  *window,
                                     gboolean     focus_frame,
                                     guint32      timestamp)
 {
-  if (timestamp_too_old (display, window, &timestamp))
-    return;
-
-  meta_error_trap_push (display);
-  XSetInputFocus (display->xdisplay,
-                  focus_frame ? window->frame->xwindow : window->xwindow,
-                  RevertToPointerRoot,
-                  timestamp);
-  meta_error_trap_pop (display);
-
-  display->expected_focus_window = window;
-  display->last_focus_time = timestamp;
-  display->active_screen = window->screen;
-
-  if (window != display->autoraise_window)
-    meta_display_remove_autoraise_callback (window->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);
 }

 void
-meta_display_focus_the_no_focus_window (MetaDisplay *display, 
+meta_display_request_take_focus (MetaDisplay *display,
+                                 MetaWindow  *window,
+                                 guint32      timestamp)
+{
+  if (timestamp_too_old (display, &timestamp))
+    return;
+
+  meta_topic (META_DEBUG_FOCUS, "WM_TAKE_FOCUS(%s, %u)\n",
+              window->desc, timestamp);
+
+  if (window != display->focus_window)
+    {
+      /* The "Globally Active Input" window case, where the window
+       * doesn't want us to call XSetInputFocus on it, but does
+       * want us to send a WM_TAKE_FOCUS.
+       *
+       * We can't just set display->focus_window to @window, since we
+       * we don't know when (or even if) the window will actually take
+       * focus, so we could end up being wrong for arbitrarily long.
+       * But we also can't leave it set to the current window, or else
+       * bug #597352 would come back. So we focus the no_focus_window
+       * now (and set display->focus_window to that), send the
+       * WM_TAKE_FOCUS, and then just forget about @window
+       * until/unless we get a FocusIn.
+       */
+      meta_display_focus_the_no_focus_window (display,
+                                              window->screen,
+                                              timestamp);
+    }
+  meta_window_send_icccm_message (window,
+                                  display->atom_WM_TAKE_FOCUS,
+                                  timestamp);
+}
+
+void
+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);
+}
+
+void
+meta_display_focus_the_no_focus_window (MetaDisplay *display,
                                        MetaScreen  *screen,
                                        guint32      timestamp)
 {
-  if (timestamp_too_old (display, NULL, &timestamp))
-    return;
-
-  XSetInputFocus (display->xdisplay,
-                  screen->no_focus_window,
-                  RevertToPointerRoot,
-                  timestamp);
-  display->expected_focus_window = NULL;
-  display->last_focus_time = timestamp;
-  display->active_screen = screen;
-
-  meta_display_remove_autoraise_callback (display);
+  request_xserver_input_focus_change (display,
+                                      screen,
+                                      META_FOCUS_NO_FOCUS_WINDOW,
+                                      NULL,
+                                      screen->no_focus_window,
+                                      timestamp);
 }

 void
@@ -5675,10 +5933,21 @@ meta_display_overlay_key_activate (MetaDisplay *display)
 void
 meta_display_accelerator_activate (MetaDisplay *display,
                                   guint        action,
-                                   guint        deviceid)
+                                   guint        deviceid,
+                                   guint        timestamp)
 {
  g_signal_emit (display, display_signals[ACCELERATOR_ACTIVATED],
-                 0, action, deviceid);
+                 0, action, deviceid, timestamp);
+}
+
+gboolean
+meta_display_modifiers_accelerator_activate (MetaDisplay *display)
+{
+  gboolean freeze;
+
+  g_signal_emit (display, display_signals[MODIFIERS_ACCELERATOR_ACTIVATED], 0, &freeze);
+
+  return freeze;
 }

 void
@@ -5762,11 +6031,9 @@ meta_display_has_shape (MetaDisplay *display)
 * meta_display_get_focus_window:
 * @display: a #MetaDisplay
 *
- * Get the window that, according to events received from X server,
- * currently has the input focus. We may have already sent a request
- * to the X server to move the focus window elsewhere. (The
- * expected_focus_window records where we've last set the input
- * focus.)
+ * Get our best guess as to the "currently" focused window (that is,
+ * the window that we expect will be focused at the point when the X
+ * server processes our next request).
 *
 * Return Value: (transfer none): The current focus window
 */
--- 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/keybindings-private.h
+++ b/src/core/keybindings-private.h
@@ -69,7 +69,6 @@ void     meta_window_ungrab_all_keys        (MetaWindow  *window,
 gboolean meta_display_process_key_event     (MetaDisplay   *display,
                                             MetaWindow    *window,
                                             XIDeviceEvent *event);
-void     meta_set_keybindings_disabled      (gboolean     setting);
 void     meta_display_process_mapping_event (MetaDisplay *display,
                                             XEvent      *event);

--- a/src/core/keybindings.c
+++ b/src/core/keybindings.c
@@ -56,8 +56,6 @@
 #define SCHEMA_COMMON_KEYBINDINGS "org.gnome.desktop.wm.keybindings"
 #define SCHEMA_MUTTER_KEYBINDINGS "org.gnome.mutter.keybindings"

-static gboolean all_bindings_disabled = FALSE;
-
 static gboolean add_builtin_keybinding (MetaDisplay          *display,
                                        const char           *name,
                                        GSettings            *settings,
@@ -302,6 +300,172 @@ reload_modmap (MetaDisplay *display)
              display->meta_mask);
 }

+/* Original code from gdk_x11_keymap_get_entries_for_keyval() in
+ * gdkkeys-x11.c */
+static int
+get_keycodes_for_keysym (MetaDisplay  *display,
+                         int           keysym,
+                         int         **keycodes)
+{
+  GArray *retval;
+  int n_keycodes;
+  int keycode;
+
+  retval = g_array_new (FALSE, FALSE, sizeof (int));
+
+  keycode = display->min_keycode;
+  while (keycode <= display->max_keycode)
+    {
+      const KeySym *syms = display->keymap + (keycode - display->min_keycode) * display->keysyms_per_keycode;
+      int i = 0;
+
+      while (i < display->keysyms_per_keycode)
+        {
+          if (syms[i] == (unsigned int)keysym)
+            g_array_append_val (retval, keycode);
+
+          ++i;
+        }
+
+      ++keycode;
+    }
+
+  n_keycodes = retval->len;
+  *keycodes = (int*) g_array_free (retval, n_keycodes == 0 ? TRUE : FALSE);
+
+  return n_keycodes;
+}
+
+static void
+reload_iso_next_group_combos (MetaDisplay *display)
+{
+  const char *iso_next_group_option;
+  MetaKeyCombo *combos;
+  int *keycodes;
+  int n_keycodes;
+  int n_combos;
+  int i;
+
+  g_clear_pointer (&display->iso_next_group_combos, g_free);
+  display->n_iso_next_group_combos = 0;
+
+  iso_next_group_option = meta_prefs_get_iso_next_group_option ();
+  if (iso_next_group_option == NULL)
+    return;
+
+  n_keycodes = get_keycodes_for_keysym (display, XK_ISO_Next_Group, &keycodes);
+
+  if (g_str_equal (iso_next_group_option, "toggle") ||
+      g_str_equal (iso_next_group_option, "lalt_toggle") ||
+      g_str_equal (iso_next_group_option, "lwin_toggle") ||
+      g_str_equal (iso_next_group_option, "rwin_toggle") ||
+      g_str_equal (iso_next_group_option, "lshift_toggle") ||
+      g_str_equal (iso_next_group_option, "rshift_toggle") ||
+      g_str_equal (iso_next_group_option, "lctrl_toggle") ||
+      g_str_equal (iso_next_group_option, "rctrl_toggle") ||
+      g_str_equal (iso_next_group_option, "sclk_toggle") ||
+      g_str_equal (iso_next_group_option, "menu_toggle") ||
+      g_str_equal (iso_next_group_option, "caps_toggle"))
+    {
+      n_combos = n_keycodes;
+      combos = g_new (MetaKeyCombo, n_combos);
+
+      for (i = 0; i < n_keycodes; ++i)
+        {
+          combos[i].keysym = XK_ISO_Next_Group;
+          combos[i].keycode = keycodes[i];
+          combos[i].modifiers = 0;
+        }
+    }
+  else if (g_str_equal (iso_next_group_option, "shift_caps_toggle") ||
+           g_str_equal (iso_next_group_option, "shifts_toggle"))
+    {
+      n_combos = n_keycodes;
+      combos = g_new (MetaKeyCombo, n_combos);
+
+      for (i = 0; i < n_keycodes; ++i)
+        {
+          combos[i].keysym = XK_ISO_Next_Group;
+          combos[i].keycode = keycodes[i];
+          combos[i].modifiers = ShiftMask;
+        }
+    }
+  else if (g_str_equal (iso_next_group_option, "alt_caps_toggle") ||
+           g_str_equal (iso_next_group_option, "alt_space_toggle"))
+    {
+      n_combos = n_keycodes;
+      combos = g_new (MetaKeyCombo, n_combos);
+
+      for (i = 0; i < n_keycodes; ++i)
+        {
+          combos[i].keysym = XK_ISO_Next_Group;
+          combos[i].keycode = keycodes[i];
+          combos[i].modifiers = Mod1Mask;
+        }
+    }
+  else if (g_str_equal (iso_next_group_option, "ctrl_shift_toggle") ||
+           g_str_equal (iso_next_group_option, "lctrl_lshift_toggle") ||
+           g_str_equal (iso_next_group_option, "rctrl_rshift_toggle"))
+    {
+      n_combos = n_keycodes * 2;
+      combos = g_new (MetaKeyCombo, n_combos);
+
+      for (i = 0; i < n_keycodes; ++i)
+        {
+          combos[i].keysym = XK_ISO_Next_Group;
+          combos[i].keycode = keycodes[i];
+          combos[i].modifiers = ShiftMask;
+
+          combos[i + n_keycodes].keysym = XK_ISO_Next_Group;
+          combos[i + n_keycodes].keycode = keycodes[i];
+          combos[i + n_keycodes].modifiers = ControlMask;
+        }
+    }
+  else if (g_str_equal (iso_next_group_option, "ctrl_alt_toggle"))
+    {
+      n_combos = n_keycodes * 2;
+      combos = g_new (MetaKeyCombo, n_combos);
+
+      for (i = 0; i < n_keycodes; ++i)
+        {
+          combos[i].keysym = XK_ISO_Next_Group;
+          combos[i].keycode = keycodes[i];
+          combos[i].modifiers = Mod1Mask;
+
+          combos[i + n_keycodes].keysym = XK_ISO_Next_Group;
+          combos[i + n_keycodes].keycode = keycodes[i];
+          combos[i + n_keycodes].modifiers = ControlMask;
+        }
+    }
+  else if (g_str_equal (iso_next_group_option, "alt_shift_toggle") ||
+           g_str_equal (iso_next_group_option, "lalt_lshift_toggle"))
+    {
+      n_combos = n_keycodes * 2;
+      combos = g_new (MetaKeyCombo, n_combos);
+
+      for (i = 0; i < n_keycodes; ++i)
+        {
+          combos[i].keysym = XK_ISO_Next_Group;
+          combos[i].keycode = keycodes[i];
+          combos[i].modifiers = Mod1Mask;
+
+          combos[i + n_keycodes].keysym = XK_ISO_Next_Group;
+          combos[i + n_keycodes].keycode = keycodes[i];
+          combos[i + n_keycodes].modifiers = ShiftMask;
+        }
+    }
+  else
+    {
+      n_combos = 0;
+      combos = NULL;
+    }
+
+  g_free (keycodes);
+
+  display->n_iso_next_group_combos = n_combos;
+  display->iso_next_group_combos = combos;
+}
+
 static guint
 keysym_to_keycode (MetaDisplay *display,
                   guint        keysym)
@@ -328,6 +492,8 @@ reload_keycodes (MetaDisplay *display)
      display->overlay_key_combo.keycode = 0;
    }

+  reload_iso_next_group_combos (display);
+
  if (display->key_bindings)
    {
      int i;
@@ -1026,6 +1192,22 @@ meta_screen_change_keygrabs (MetaScreen *screen,
                         display->overlay_key_combo.keycode,
                         display->overlay_key_combo.modifiers);

+  if (display->iso_next_group_combos)
+    {
+      int i = 0;
+      while (i < display->n_iso_next_group_combos)
+        {
+          if (display->iso_next_group_combos[i].keycode != 0)
+            {
+              meta_change_keygrab (display, screen->xroot, grab,
+                                   display->iso_next_group_combos[i].keysym,
+                                   display->iso_next_group_combos[i].keycode,
+                                   display->iso_next_group_combos[i].modifiers);
+            }
+          ++i;
+        }
+    }
+
  change_binding_keygrabs (screen->display->key_bindings,
                           screen->display->n_key_bindings,
                           screen->display, screen->xroot,
@@ -1128,7 +1310,7 @@ handle_external_grab (MetaDisplay    *display,
  guint action = meta_display_get_keybinding_action (display,
                                                     binding->keycode,
                                                     binding->mask);
-  meta_display_accelerator_activate (display, action, event->deviceid);
+  meta_display_accelerator_activate (display, action, event->deviceid, event->time);
 }


@@ -1264,7 +1446,8 @@ grab_status_to_string (int status)
 static gboolean
 grab_keyboard (MetaDisplay *display,
               Window       xwindow,
-               guint32      timestamp)
+               guint32      timestamp,
+               int          grab_mode)
 {
  int result;
  int grab_status;
@@ -1280,13 +1463,22 @@ grab_keyboard (MetaDisplay *display,
   */
  meta_error_trap_push_with_return (display);

+  /* Strictly, we only need to set grab_mode on the keyboard device
+   * while the pointer should always be XIGrabModeAsync. Unfortunately
+   * there is a bug in the X server, only fixed (link below) in 1.15,
+   * which swaps these arguments for keyboard devices. As such, we set
+   * both the device and the paired device mode which works around
+   * that bug and also works on fixed X servers.
+   *
+   * http://cgit.freedesktop.org/xorg/xserver/commit/?id=9003399708936481083424b4ff8f18a16b88b7b3
+   */
  grab_status = XIGrabDevice (display->xdisplay,
                              META_VIRTUAL_CORE_KEYBOARD_ID,
                              xwindow,
                              timestamp,
                              None,
-                              XIGrabModeAsync, XIGrabModeAsync,
-                              True, /* owner_events */
+                              grab_mode, grab_mode,
+                              False, /* owner_events */
                              &mask);

  if (grab_status != Success)
@@ -1339,7 +1531,7 @@ meta_screen_grab_all_keys (MetaScreen *screen, guint32 timestamp)

  meta_topic (META_DEBUG_KEYBINDINGS,
              "Grabbing all keys on RootWindow\n");
-  retval = grab_keyboard (screen->display, screen->xroot, timestamp);
+  retval = grab_keyboard (screen->display, screen->xroot, timestamp, XIGrabModeAsync);
  if (retval)
    {
      screen->all_keys_grabbed = TRUE;
@@ -1392,7 +1584,7 @@ meta_window_grab_all_keys (MetaWindow  *window,

  meta_topic (META_DEBUG_KEYBINDINGS,
              "Grabbing all keys on window %s\n", window->desc);
-  retval = grab_keyboard (window->display, grabwindow, timestamp);
+  retval = grab_keyboard (window->display, grabwindow, timestamp, XIGrabModeAsync);
  if (retval)
    {
      window->keys_grabbed = FALSE;
@@ -1419,6 +1611,32 @@ meta_window_ungrab_all_keys (MetaWindow *window, guint32 timestamp)
    }
 }

+void
+meta_display_freeze_keyboard (MetaDisplay *display, Window window, guint32 timestamp)
+{
+  grab_keyboard (display, window, timestamp, XIGrabModeSync);
+}
+
+void
+meta_display_ungrab_keyboard (MetaDisplay *display, guint32 timestamp)
+{
+  ungrab_keyboard (display, timestamp);
+}
+
+void
+meta_display_unfreeze_keyboard (MetaDisplay *display, guint32 timestamp)
+{
+  meta_error_trap_push (display);
+  XIAllowEvents (display->xdisplay, META_VIRTUAL_CORE_KEYBOARD_ID,
+                 XIAsyncDevice, timestamp);
+  /* We shouldn't need to unfreeze the pointer device here, however we
+   * have to, due to the workaround we do in grab_keyboard().
+   */
+  XIAllowEvents (display->xdisplay, META_VIRTUAL_CORE_POINTER_ID,
+                 XIAsyncDevice, timestamp);
+  meta_error_trap_pop (display);
+}
+
 static gboolean
 is_modifier (MetaDisplay *display,
             unsigned int keycode)
@@ -1747,6 +1965,23 @@ process_overlay_key (MetaDisplay *display,
            return TRUE;
          meta_display_overlay_key_activate (display);
        }
+      else
+        {
+          /* In some rare race condition, mutter might not receive the Super_L
+           * KeyRelease event because:
+           * - the compositor might end the modal mode and call XIUngrabDevice
+           *   while the key is still down
+           * - passive grabs are only activated on KeyPress and not KeyRelease.
+           *
+           * In this case, display->overlay_key_only_pressed might be wrong.
+           * Mutter still ought to acknowledge events, otherwise the X server
+           * will not send the next events.
+           *
+           * https://bugzilla.gnome.org/show_bug.cgi?id=666101
+           */
+          XIAllowEvents (display->xdisplay, event->deviceid,
+                         XIAsyncDevice, event->time);
+        }

      return TRUE;
    }
@@ -1765,6 +2000,41 @@ process_overlay_key (MetaDisplay *display,
    return FALSE;
 }

+static gboolean
+process_iso_next_group (MetaDisplay *display,
+                        MetaScreen *screen,
+                        XIDeviceEvent *event,
+                        KeySym keysym)
+{
+  gboolean activate;
+  unsigned int mods;
+  int i;
+
+  if (event->evtype != XI_KeyPress)
+    return FALSE;
+
+  activate = FALSE;
+  mods = (event->mods.effective & 0xff & ~(display->ignored_modifier_mask));
+
+  for (i = 0; i < display->n_iso_next_group_combos; ++i)
+    {
+      if (event->detail == (int)display->iso_next_group_combos[i].keycode &&
+          mods == display->iso_next_group_combos[i].modifiers)
+        {
+          /* If the signal handler returns TRUE the keyboard will
+             remain frozen. It's the signal handler's responsibility
+             to unfreeze it. */
+          if (!meta_display_modifiers_accelerator_activate (display))
+            XIAllowEvents (display->xdisplay, event->deviceid,
+                           XIAsyncDevice, event->time);
+          activate = TRUE;
+          break;
+        }
+    }
+
+  return activate;
+}
+
 /* Handle a key event. May be called recursively: some key events cause
 * grabs to be ended and then need to be processed again in their own
 * right. This cannot cause infinite recursion because we never call
@@ -1791,21 +2061,6 @@ meta_display_process_key_event (MetaDisplay   *display,
  const char *str;
  MetaScreen *screen;

-  if (all_bindings_disabled)
-    {
-      /* In this mode, we try to pretend we don't have grabs, so we
-       * immediately replay events and drop the grab. (This still
-       * messes up global passive grabs from other clients.) The
-       * FALSE return here is a little suspect, but we don't really
-       * know if we'll see the event again or not, and it's pretty
-       * poorly defined how this mode is supposed to interact with
-       * plugins.
-       */
-      XIAllowEvents (display->xdisplay, event->deviceid,
-                     XIReplayDevice, event->time);
-      return FALSE;
-    }
-
  /* if key event was on root window, we have a shortcut */
  screen = meta_display_screen_for_root (display, event->event);

@@ -1839,6 +2094,10 @@ meta_display_process_key_event (MetaDisplay   *display,
      handled = process_overlay_key (display, screen, event, keysym);
      if (handled)
        return TRUE;
+
+      handled = process_iso_next_group (display, screen, event, keysym);
+      if (handled)
+        return TRUE;
    }

  XIAllowEvents (display->xdisplay, event->deviceid,
@@ -3839,14 +4098,6 @@ handle_set_spew_mark (MetaDisplay    *display,
  meta_verbose ("-- MARK MARK MARK MARK --\n");
 }

-void
-meta_set_keybindings_disabled (gboolean setting)
-{
-  all_bindings_disabled = setting;
-  meta_topic (META_DEBUG_KEYBINDINGS,
-              "Keybindings %s\n", all_bindings_disabled ? "disabled" : "enabled");
-}
-
 /**
 * meta_keybindings_set_custom_handler:
 * @name: The name of the keybinding to set
@@ -4532,6 +4783,12 @@ meta_display_init_keys (MetaDisplay *display)

  g_hash_table_insert (key_handlers, g_strdup ("overlay-key"), handler);

+  handler = g_new0 (MetaKeyHandler, 1);
+  handler->name = g_strdup ("iso-next-group");
+  handler->flags = META_KEY_BINDING_BUILTIN;
+
+  g_hash_table_insert (key_handlers, g_strdup ("iso-next-group"), handler);
+
  handler = g_new0 (MetaKeyHandler, 1);
  handler->name = g_strdup ("external-grab");
  handler->func = handle_external_grab;
--- 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 ();
+    }
 }

 /**
@@ -514,14 +565,14 @@ meta_run (void)
  if (g_getenv ("MUTTER_G_FATAL_WARNINGS") != NULL)
    g_log_set_always_fatal (G_LOG_LEVEL_MASK);
  
-  meta_ui_set_current_theme (meta_prefs_get_theme (), FALSE);
+  meta_ui_set_current_theme (meta_prefs_get_theme ());

  /* Try to find some theme that'll work if the theme preference
   * doesn't exist.  First try Simple (the default theme) then just
   * try anything in the themes directory.
   */
  if (!meta_ui_have_a_theme ())
-    meta_ui_set_current_theme ("Simple", FALSE);
+    meta_ui_set_current_theme ("Simple");
  
  if (!meta_ui_have_a_theme ())
    {
@@ -539,7 +590,7 @@ meta_run (void)
          while (((dir_entry = g_dir_read_name (themes_dir)) != NULL) && 
                 (!meta_ui_have_a_theme ()))
            {
-              meta_ui_set_current_theme (dir_entry, FALSE);
+              meta_ui_set_current_theme (dir_entry);
            }
          
          g_dir_close (themes_dir);
@@ -598,7 +649,7 @@ prefs_changed_callback (MetaPreference pref,
    {
    case META_PREF_THEME:
    case META_PREF_DRAGGABLE_BORDER_WIDTH:
-      meta_ui_set_current_theme (meta_prefs_get_theme (), FALSE);
+      meta_ui_set_current_theme (meta_prefs_get_theme ());
      meta_display_retheme_all ();
      break;

--- 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/prefs.c
+++ b/src/core/prefs.c
@@ -55,6 +55,7 @@
 #define KEY_GNOME_ANIMATIONS "enable-animations"
 #define KEY_GNOME_CURSOR_THEME "cursor-theme"
 #define KEY_GNOME_CURSOR_SIZE "cursor-size"
+#define KEY_XKB_OPTIONS "xkb-options"

 #define KEY_OVERLAY_KEY "overlay-key"
 #define KEY_WORKSPACES_ONLY_ON_PRIMARY "workspaces-only-on-primary"
@@ -65,6 +66,7 @@
 #define SCHEMA_GENERAL         "org.gnome.desktop.wm.preferences"
 #define SCHEMA_MUTTER          "org.gnome.mutter"
 #define SCHEMA_INTERFACE       "org.gnome.desktop.interface"
+#define SCHEMA_INPUT_SOURCES   "org.gnome.desktop.input-sources"

 #define SETTINGS(s) g_hash_table_lookup (settings_schemas, (s))

@@ -87,7 +89,6 @@ static GDesktopTitlebarAction action_double_click_titlebar = G_DESKTOP_TITLEBAR_
 static GDesktopTitlebarAction action_middle_click_titlebar = G_DESKTOP_TITLEBAR_ACTION_LOWER;
 static GDesktopTitlebarAction action_right_click_titlebar = G_DESKTOP_TITLEBAR_ACTION_MENU;
 static gboolean dynamic_workspaces = FALSE;
-static gboolean application_based = FALSE;
 static gboolean disable_workarounds = FALSE;
 static gboolean auto_raise = FALSE;
 static gboolean auto_raise_delay = 500;
@@ -115,6 +116,7 @@ static gboolean workspaces_only_on_primary = FALSE;

 static gboolean no_tab_popup = FALSE;

+static char *iso_next_group_option = NULL;

 static void handle_preference_update_enum (GSettings *settings,
                                           gchar     *key);
@@ -122,7 +124,6 @@ static gboolean update_binding         (MetaKeyPref *binding,
                                        gchar      **strokes);
 static gboolean update_key_binding     (const char  *key,
                                        gchar      **strokes);
-static gboolean update_workspace_names (void);

 static void settings_changed (GSettings      *settings,
                              gchar          *key,
@@ -140,11 +141,11 @@ static gboolean theme_name_handler (GVariant*, gpointer*, gpointer);
 static gboolean mouse_button_mods_handler (GVariant*, gpointer*, gpointer);
 static gboolean button_layout_handler (GVariant*, gpointer*, gpointer);
 static gboolean overlay_key_handler (GVariant*, gpointer*, gpointer);
+static gboolean iso_next_group_handler (GVariant*, gpointer*, gpointer);

 static void     do_override               (char *key, char *schema);

 static void     init_bindings             (void);
-static void     init_workspace_names      (void);


 typedef struct
@@ -198,6 +199,13 @@ typedef struct
  gchar **target;
 } MetaStringPreference;

+typedef struct
+{
+  MetaBasePreference base;
+  GSettingsGetMapping handler;
+  gchar ***target;
+} MetaStringArrayPreference;
+
 typedef struct
 {
  MetaBasePreference base;
@@ -289,13 +297,6 @@ static MetaBoolPreference preferences_bool[] =
      },
      &dynamic_workspaces,
    },
-    {
-      { "application-based",
-        SCHEMA_GENERAL,
-        META_PREF_APPLICATION_BASED,
-      },
-      NULL, /* feature is known but disabled */
-    },
    {
      { "disable-workarounds",
        SCHEMA_GENERAL,
@@ -436,6 +437,27 @@ static MetaStringPreference preferences_string[] =
    { { NULL, 0, 0 }, NULL },
  };

+static MetaStringArrayPreference preferences_string_array[] =
+  {
+    {
+      { KEY_WORKSPACE_NAMES,
+        SCHEMA_GENERAL,
+        META_PREF_KEYBINDINGS,
+      },
+      NULL,
+      &workspace_names,
+    },
+    {
+      { KEY_XKB_OPTIONS,
+        SCHEMA_INPUT_SOURCES,
+        META_PREF_KEYBINDINGS,
+      },
+      iso_next_group_handler,
+      NULL,
+    },
+    { { NULL, 0, 0 }, NULL },
+  };
+
 static MetaIntPreference preferences_int[] =
  {
    {
@@ -555,6 +577,42 @@ handle_preference_init_string (void)
    }
 }

+static void
+handle_preference_init_string_array (void)
+{
+  MetaStringArrayPreference *cursor = preferences_string_array;
+
+  while (cursor->base.key != NULL)
+    {
+      char **value;
+
+      /* Complex keys have a mapping function to check validity */
+      if (cursor->handler)
+        {
+          if (cursor->target)
+            meta_bug ("%s has both a target and a handler\n", cursor->base.key);
+
+          g_settings_get_mapped (SETTINGS (cursor->base.schema),
+                                 cursor->base.key, cursor->handler, NULL);
+        }
+      else
+        {
+          if (!cursor->target)
+            meta_bug ("%s must have handler or target\n", cursor->base.key);
+
+          if (*(cursor->target))
+            g_strfreev (*(cursor->target));
+
+          value = g_settings_get_strv (SETTINGS (cursor->base.schema),
+                                       cursor->base.key);
+
+          *(cursor->target) = value;
+        }
+
+      ++cursor;
+    }
+}
+
 static void
 handle_preference_init_int (void)
 {
@@ -673,6 +731,56 @@ handle_preference_update_string (GSettings *settings,
    queue_changed (cursor->base.pref);
 }

+static void
+handle_preference_update_string_array (GSettings *settings,
+                                       gchar *key)
+{
+  MetaStringArrayPreference *cursor = preferences_string_array;
+  gboolean inform_listeners = FALSE;
+
+  while (cursor->base.key != NULL && strcmp (key, cursor->base.key) != 0)
+    ++cursor;
+
+  if (cursor->base.key==NULL)
+    /* Didn't recognise that key. */
+    return;
+
+  /* Complex keys have a mapping function to check validity */
+  if (cursor->handler)
+    {
+      if (cursor->target)
+        meta_bug ("%s has both a target and a handler\n", cursor->base.key);
+
+      g_settings_get_mapped (SETTINGS (cursor->base.schema),
+                             cursor->base.key, cursor->handler, NULL);
+    }
+  else
+    {
+      char **values, **previous;
+      int n_values, n_previous, i;
+
+      if (!cursor->target)
+        meta_bug ("%s must have handler or target\n", cursor->base.key);
+
+      values = g_settings_get_strv (SETTINGS (cursor->base.schema),
+                                    cursor->base.key);
+      n_values = g_strv_length (values);
+      previous = *(cursor->target);
+      n_previous = previous ? g_strv_length (previous) : 0;
+
+      inform_listeners = n_previous != n_values;
+      for (i = 0; i < n_values && !inform_listeners; i++)
+        inform_listeners = g_strcmp0 (values[i], previous[i]) != 0;
+
+      if (*(cursor->target))
+        g_strfreev (*(cursor->target));
+      *(cursor->target) = values;
+    }
+
+  if (inform_listeners)
+    queue_changed (cursor->base.pref);
+}
+
 static void
 handle_preference_update_int (GSettings *settings,
                              gchar *key)
@@ -857,6 +965,11 @@ meta_prefs_init (void)
                    G_CALLBACK (settings_changed), NULL);
  g_hash_table_insert (settings_schemas, g_strdup (SCHEMA_INTERFACE), settings);

+  settings = g_settings_new (SCHEMA_INPUT_SOURCES);
+  g_signal_connect (settings, "changed::" KEY_XKB_OPTIONS,
+                    G_CALLBACK (settings_changed), NULL);
+  g_hash_table_insert (settings_schemas, g_strdup (SCHEMA_INPUT_SOURCES), settings);
+

  for (tmp = overridden_keys; tmp; tmp = tmp->next)
    {
@@ -869,10 +982,10 @@ meta_prefs_init (void)
  handle_preference_init_enum ();
  handle_preference_init_bool ();
  handle_preference_init_string ();
+  handle_preference_init_string_array ();
  handle_preference_init_int ();

  init_bindings ();
-  init_workspace_names ();
 }

 static gboolean
@@ -1020,14 +1133,6 @@ settings_changed (GSettings *settings,
  MetaEnumPreference *cursor;
  gboolean found_enum;

-  /* String array, handled separately */
-  if (strcmp (key, KEY_WORKSPACE_NAMES) == 0)
-    {
-      if (update_workspace_names ())
-        queue_changed (META_PREF_WORKSPACE_NAMES);
-      return;
-    }
-
  value = g_settings_get_value (settings, key);
  type = g_variant_get_type (value);

@@ -1035,6 +1140,8 @@ settings_changed (GSettings *settings,
    handle_preference_update_bool (settings, key);
  else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT32))
    handle_preference_update_int (settings, key);
+  else if (g_variant_type_equal (type, G_VARIANT_TYPE_STRING_ARRAY))
+    handle_preference_update_string_array (settings, key);
  else if (g_variant_type_equal (type, G_VARIANT_TYPE_STRING))
    {
      cursor = preferences_enum;
@@ -1554,6 +1661,39 @@ overlay_key_handler (GVariant *value,
  return TRUE;
 }

+static gboolean
+iso_next_group_handler (GVariant *value,
+                        gpointer *result,
+                        gpointer  data)
+{
+  const char **xkb_options, **p;
+  const char *option = NULL;
+  gboolean changed = FALSE;
+
+  *result = NULL; /* ignored */
+  xkb_options = g_variant_get_strv (value, NULL);
+
+  for (p = xkb_options; p && *p; ++p)
+    if (g_str_has_prefix (*p, "grp:"))
+      {
+        option = (*p + 4);
+        break;
+      }
+
+  changed = (g_strcmp0 (option, iso_next_group_option) != 0);
+
+  if (changed)
+    {
+      g_free (iso_next_group_option);
+      iso_next_group_option = g_strdup (option);
+      queue_changed (META_PREF_KEYBINDINGS);
+    }
+
+  g_free (xkb_options);
+
+  return TRUE;
+}
+
 const PangoFontDescription*
 meta_prefs_get_titlebar_font (void)
 {
@@ -1575,14 +1715,6 @@ meta_prefs_get_dynamic_workspaces (void)
  return dynamic_workspaces;
 }

-gboolean
-meta_prefs_get_application_based (void)
-{
-  return FALSE; /* For now, we never want this to do anything */
-  
-  return application_based;
-}
-
 gboolean
 meta_prefs_get_disable_workarounds (void)
 {
@@ -1620,9 +1752,6 @@ meta_preference_to_string (MetaPreference pref)
    case META_PREF_NUM_WORKSPACES:
      return "NUM_WORKSPACES";

-    case META_PREF_APPLICATION_BASED:
-      return "APPLICATION_BASED";
-
    case META_PREF_KEYBINDINGS:
      return "KEYBINDINGS";

@@ -1748,20 +1877,15 @@ init_bindings (void)
  g_hash_table_insert (key_bindings, g_strdup ("overlay-key"), pref);
 }

-static void
-init_workspace_names (void)
-{
-  update_workspace_names ();
-}
-
 static gboolean
 update_binding (MetaKeyPref *binding,
                gchar      **strokes)
 {
+  GSList *old_bindings, *a, *b;
+  gboolean changed;
  unsigned int keysym;
  unsigned int keycode;
  MetaVirtualModifier mods;
-  gboolean changed = FALSE;
  MetaKeyCombo *combo;
  int i;

@@ -1769,13 +1893,9 @@ update_binding (MetaKeyPref *binding,
              "Binding \"%s\" has new GSettings value\n",
              binding->name);

-  /* Okay, so, we're about to provide a new list of key combos for this
-   * action. Delete any pre-existing list.
-   */
-  g_slist_foreach (binding->bindings, (GFunc) g_free, NULL);
-  g_slist_free (binding->bindings);
+  old_bindings = binding->bindings;
  binding->bindings = NULL;
-  
+
  for (i = 0; strokes && strokes[i]; i++)
    {
      keysym = 0;
@@ -1810,8 +1930,6 @@ update_binding (MetaKeyPref *binding,
           * Changing the key in response to a modification could lead to cyclic calls. */
          continue;
        }
-  
-      changed = TRUE;

      combo = g_malloc0 (sizeof (MetaKeyCombo));
      combo->keysym = keysym;
@@ -1826,6 +1944,34 @@ update_binding (MetaKeyPref *binding,

  binding->bindings = g_slist_reverse (binding->bindings);

+  a = old_bindings;
+  b = binding->bindings;
+  while (TRUE)
+    {
+      if ((!a && b) || (a && !b))
+        {
+          changed = TRUE;
+          break;
+        }
+      else if (!a && !b)
+        {
+          changed = FALSE;
+          break;
+        }
+      else if (memcmp (a->data, b->data, sizeof (MetaKeyCombo)) != 0)
+        {
+          changed = TRUE;
+          break;
+        }
+      else
+        {
+          a = a->next;
+          b = b->next;
+        }
+    }
+
+  g_slist_free_full (old_bindings, g_free);
+
  return changed;
 }

@@ -1841,41 +1987,6 @@ update_key_binding (const char *key,
    return FALSE;
 }

-static gboolean
-update_workspace_names (void)
-{
-  int i;
-  char **names;
-  int n_workspace_names, n_names;
-  gboolean changed = FALSE;
-
-  names = g_settings_get_strv (SETTINGS (SCHEMA_GENERAL), KEY_WORKSPACE_NAMES);
-  n_names = g_strv_length (names);
-  n_workspace_names = workspace_names ? g_strv_length (workspace_names) : 0;
-
-  for (i = 0; i < n_names; i++)
-    if (n_workspace_names < i + 1 || !workspace_names[i] ||
-        g_strcmp0 (names[i], workspace_names[i]) != 0)
-      {
-        changed = TRUE;
-        break;
-      }
-
-  if (n_workspace_names != n_names)
-    changed = TRUE;
-
-  if (changed)
-    {
-      if (workspace_names)
-        g_strfreev (workspace_names);
-      workspace_names = names;
-    }
-  else
-    g_strfreev (names);
-
-  return changed;
-}
-
 const char*
 meta_prefs_get_workspace_name (int i)
 {
@@ -2075,6 +2186,12 @@ meta_prefs_get_overlay_binding (MetaKeyCombo *combo)
  *combo = overlay_key_combo;
 }

+const char *
+meta_prefs_get_iso_next_group_option (void)
+{
+  return iso_next_group_option;
+}
+
 GDesktopTitlebarAction
 meta_prefs_get_action_double_click_titlebar (void)
 {
--- 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;
@@ -187,6 +179,9 @@ MetaWindow*   meta_screen_get_mouse_window     (MetaScreen                 *scre
                                                MetaWindow                 *not_this_one);

 const MetaMonitorInfo* meta_screen_get_current_monitor_info   (MetaScreen    *screen);
+const MetaMonitorInfo* meta_screen_get_current_monitor_info_for_pos   (MetaScreen    *screen,
+                                                                       int x,
+                                                                       int y);
 const MetaMonitorInfo* meta_screen_get_monitor_for_rect   (MetaScreen    *screen,
                                                           MetaRectangle *rect);
 const MetaMonitorInfo* meta_screen_get_monitor_for_window (MetaScreen    *screen,
@@ -228,10 +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);

@@ -254,4 +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);
    }

@@ -2216,6 +2063,65 @@ meta_screen_get_current_monitor_info (MetaScreen *screen)
    return &screen->monitor_infos[monitor_index];
 }

+const MetaMonitorInfo*
+meta_screen_get_current_monitor_info_for_pos (MetaScreen *screen,
+                                              int x,
+                                              int y)
+{
+    int monitor_index;
+    monitor_index = meta_screen_get_current_monitor_for_pos (screen, x, y);
+    return &screen->monitor_infos[monitor_index];
+}
+
+
+/**
+ * meta_screen_get_current_monitor_for_pos:
+ * @screen: a #MetaScreen
+ * @x: The x coordinate
+ * @y: The y coordinate
+ *
+ * Gets the index of the monitor that contains the passed coordinates.
+ *
+ * Return value: a monitor index
+ */
+int
+meta_screen_get_current_monitor_for_pos (MetaScreen *screen,
+                                         int x,
+                                         int y)
+{
+  if (screen->n_monitor_infos == 1)
+    return 0;
+  else if (screen->display->monitor_cache_invalidated)
+    {
+      int i;
+      MetaRectangle pointer_position;
+      pointer_position.x = x;
+      pointer_position.y = y;
+      pointer_position.width = pointer_position.height = 1;
+
+      screen->display->monitor_cache_invalidated = FALSE;
+      screen->last_monitor_index = 0;
+
+      for (i = 0; i < screen->n_monitor_infos; i++)
+        {
+          if (meta_rectangle_contains_rect (&screen->monitor_infos[i].rect,
+                                            &pointer_position))
+            {
+              screen->last_monitor_index = i;
+              break;
+            }
+        }
+
+      meta_topic (META_DEBUG_XINERAMA,
+                  "Rechecked current monitor, now %d\n",
+                  screen->last_monitor_index);
+
+    }
+
+    return screen->last_monitor_index;
+}
+
+
 /**
 * meta_screen_get_current_monitor:
 * @screen: a #MetaScreen
@@ -2241,11 +2147,7 @@ meta_screen_get_current_monitor (MetaScreen *screen)
      XIButtonState buttons;
      XIModifierState mods;
      XIGroupState group;
-      int i;
-      MetaRectangle pointer_position;

-      screen->display->monitor_cache_invalidated = FALSE;
-      
      XIQueryPointer (screen->display->xdisplay,
                      META_VIRTUAL_CORE_POINTER_ID,
                      screen->xroot,
@@ -2260,24 +2162,7 @@ meta_screen_get_current_monitor (MetaScreen *screen)
                      &group);
      free (buttons.mask);

-      pointer_position.x = root_x_return;
-      pointer_position.y = root_y_return;
-      pointer_position.width = pointer_position.height = 1;
-
-      screen->last_monitor_index = 0;
-      for (i = 0; i < screen->n_monitor_infos; i++)
-        {
-          if (meta_rectangle_contains_rect (&screen->monitor_infos[i].rect,
-                                            &pointer_position))
-            {
-              screen->last_monitor_index = i;
-              break;
-            }
-        }
-      
-      meta_topic (META_DEBUG_XINERAMA,
-                  "Rechecked current monitor, now %d\n",
-                  screen->last_monitor_index);
+      meta_screen_get_current_monitor_for_pos (screen, root_x_return, root_y_return);
    }

  return screen->last_monitor_index;
@@ -2959,19 +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);
@@ -2983,8 +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,
@@ -2994,14 +2875,15 @@ 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);

  /* Fix up monitor for all windows on this screen */
  windows = meta_display_list_windows (screen->display,
-                                       META_LIST_DEFAULT);
+                                       META_LIST_INCLUDE_OVERRIDE_REDIRECT);
  for (tmp = windows; tmp != NULL; tmp = tmp->next)
    {
      MetaWindow *window = tmp->data;
@@ -3010,7 +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);
@@ -3806,3 +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);
 }

@@ -278,7 +295,7 @@ static gboolean
 is_focused_foreach (MetaWindow *window,
                    void       *data)
 {
-  if (window == window->display->expected_focus_window)
+  if (window->has_focus)
    {
      *((gboolean*) data) = TRUE;
      return FALSE;
@@ -335,11 +352,11 @@ get_standalone_layer (MetaWindow *window)
        layer = META_LAYER_BOTTOM;
      else if (window->fullscreen &&
               (focused_transient ||
-                window == window->display->expected_focus_window ||
-                window->display->expected_focus_window == NULL ||
-                (window->display->expected_focus_window != NULL &&
+                window == window->display->focus_window ||
+                window->display->focus_window == NULL ||
+                (window->display->focus_window != NULL &&
                 windows_on_different_monitor (window,
-                                               window->display->expected_focus_window))))
+                                               window->display->focus_window))))
        layer = META_LAYER_FULLSCREEN;
      else if (window->wm_state_above && !META_WINDOW_MAXIMIZED (window))
        layer = META_LAYER_TOP;
@@ -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;
@@ -277,7 +291,7 @@ struct _MetaWindow
  /* EWHH demands attention flag */
  guint wm_state_demands_attention : 1;
  
-  /* this flag tracks receipt of focus_in focus_out */
+  /* TRUE iff window == window->display->focus_window */
  guint has_focus : 1;

  /* Have we placed this window? */
@@ -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;
@@ -394,6 +411,9 @@ struct _MetaWindow
   */
  MetaRectangle rect;

+  gboolean has_custom_frame_extents;
+  GtkBorder custom_frame_extents;
+
  /* The geometry to restore when we unmaximize.  The position is in
   * root window coords, even if there's a frame, which contrasts with
   * window->rect above.  Note that this gives the position and size
@@ -487,6 +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);
@@ -590,9 +614,8 @@ gboolean meta_window_property_notify   (MetaWindow *window,
                                        XEvent     *event);
 gboolean meta_window_client_message    (MetaWindow *window,
                                        XEvent     *event);
-gboolean meta_window_notify_focus      (MetaWindow *window,
-                                        XIEnterEvent *event);
-void     meta_window_lost_focus        (MetaWindow *window);
+void     meta_window_set_focused_internal (MetaWindow *window,
+                                           gboolean    focused);

 void     meta_window_set_current_workspace_hint (MetaWindow *window);

@@ -663,7 +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);

@@ -677,4 +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
@@ -289,6 +289,35 @@ reload_icon_geometry (MetaWindow    *window,
    }
 }

+static void
+reload_gtk_frame_extents (MetaWindow    *window,
+                          MetaPropValue *value,
+                          gboolean       initial)
+{
+  if (value->type != META_PROP_VALUE_INVALID)
+    {
+      if (value->v.cardinal_list.n_cardinals != 4)
+        {
+          meta_verbose ("_GTK_FRAME_EXTENTS on %s has %d values instead of 4\n",
+                        window->desc, value->v.cardinal_list.n_cardinals);
+        }
+      else
+        {
+          GtkBorder *extents = &window->custom_frame_extents;
+
+          window->has_custom_frame_extents = TRUE;
+          extents->left   = (int)value->v.cardinal_list.cardinals[0];
+          extents->right  = (int)value->v.cardinal_list.cardinals[1];
+          extents->top    = (int)value->v.cardinal_list.cardinals[2];
+          extents->bottom = (int)value->v.cardinal_list.cardinals[3];
+        }
+    }
+  else
+    {
+      window->has_custom_frame_extents = FALSE;
+    }
+}
+
 static void
 reload_struts (MetaWindow    *window,
               MetaPropValue *value,
@@ -536,7 +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
@@ -1766,6 +1795,7 @@ meta_display_init_window_prop_hooks (MetaDisplay *display)
    { display->atom__GTK_WINDOW_OBJECT_PATH,           META_PROP_VALUE_UTF8,         reload_gtk_window_object_path,           TRUE, FALSE },
    { display->atom__GTK_APP_MENU_OBJECT_PATH,         META_PROP_VALUE_UTF8,         reload_gtk_app_menu_object_path,         TRUE, FALSE },
    { display->atom__GTK_MENUBAR_OBJECT_PATH,          META_PROP_VALUE_UTF8,         reload_gtk_menubar_object_path,          TRUE, FALSE },
+    { display->atom__GTK_FRAME_EXTENTS,                META_PROP_VALUE_CARDINAL_LIST,reload_gtk_frame_extents,                TRUE, FALSE },
    { display->atom__NET_WM_USER_TIME_WINDOW, META_PROP_VALUE_WINDOW, reload_net_wm_user_time_window, TRUE, FALSE },
    { display->atom_WM_STATE,          META_PROP_VALUE_INVALID,  NULL,                     FALSE, FALSE },
    { display->atom__NET_WM_ICON,      META_PROP_VALUE_INVALID,  reload_net_wm_icon,       FALSE, FALSE },
--- a/src/core/window.c
+++ b/src/core/window.c
--- 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
@@ -54,9 +54,6 @@ item(WM_WINDOW_ROLE)
 item(UTF8_STRING)
 item(WM_ICON_SIZE)
 item(_KWM_WIN_ICON)
-item(_MUTTER_RELOAD_THEME_MESSAGE)
-item(_MUTTER_SET_KEYBINDINGS_MESSAGE)
-item(_MUTTER_TOGGLE_VERBOSE)
 item(_MUTTER_HINTS)
 item(_GTK_THEME_VARIANT)
 item(_GTK_HIDE_TITLEBAR_WHEN_MAXIMIZED)
@@ -66,12 +63,16 @@ item(_GTK_APPLICATION_OBJECT_PATH)
 item(_GTK_WINDOW_OBJECT_PATH)
 item(_GTK_APP_MENU_OBJECT_PATH)
 item(_GTK_MENUBAR_OBJECT_PATH)
+item(_GTK_FRAME_EXTENTS)
 item(_GNOME_WM_KEYBINDINGS)
 item(_GNOME_PANEL_ACTION)
 item(_GNOME_PANEL_ACTION_MAIN_MENU)
 item(_GNOME_PANEL_ACTION_RUN_DIALOG)
+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/compositor-mutter.h
+++ b/src/meta/compositor-mutter.h
@@ -35,7 +35,6 @@

 /* Public compositor API */
 ClutterActor *meta_get_stage_for_screen         (MetaScreen *screen);
-ClutterActor *meta_get_overlay_group_for_screen (MetaScreen *screen);
 Window        meta_get_overlay_window           (MetaScreen *screen);
 GList        *meta_get_window_actors            (MetaScreen *screen);
 ClutterActor *meta_get_window_group_for_screen  (MetaScreen *screen);
@@ -47,5 +46,8 @@ void        meta_enable_unredirect_for_screen   (MetaScreen *screen);
 void meta_set_stage_input_region     (MetaScreen    *screen,
                                      XserverRegion  region);
 void meta_empty_stage_input_region   (MetaScreen    *screen);
+void meta_focus_stage_window         (MetaScreen    *screen,
+                                      guint32        timestamp);
+gboolean meta_stage_is_focused       (MetaScreen    *screen);

 #endif
--- a/src/meta/display.h
+++ b/src/meta/display.h
@@ -165,6 +165,10 @@ void meta_display_set_input_focus_window   (MetaDisplay *display,
                                            gboolean     focus_frame,
                                            guint32      timestamp);

+void meta_display_request_take_focus       (MetaDisplay *display,
+                                            MetaWindow  *window,
+                                            guint32      timestamp);
+
 /* meta_display_focus_the_no_focus_window is called when the
 * designated no_focus_window should be focused, but is otherwise the
 * same as meta_display_set_input_focus_window
@@ -187,4 +191,11 @@ void meta_display_unmanage_screen (MetaDisplay *display,

 void meta_display_clear_mouse_mode (MetaDisplay *display);

+void meta_display_freeze_keyboard (MetaDisplay *display,
+                                   Window       window,
+                                   guint32      timestamp);
+void meta_display_ungrab_keyboard (MetaDisplay *display,
+                                   guint32      timestamp);
+void meta_display_unfreeze_keyboard (MetaDisplay *display,
+                                     guint32      timestamp);
 #endif
--- 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/meta-window-actor.h
+++ b/src/meta/meta-window-actor.h
@@ -64,7 +64,6 @@ gint               meta_window_actor_get_workspace        (MetaWindowActor *self
 MetaWindow *       meta_window_actor_get_meta_window      (MetaWindowActor *self);
 ClutterActor *     meta_window_actor_get_texture          (MetaWindowActor *self);
 gboolean           meta_window_actor_is_override_redirect (MetaWindowActor *self);
-const char *       meta_window_actor_get_description      (MetaWindowActor *self);
 gboolean       meta_window_actor_showing_on_its_workspace (MetaWindowActor *self);
 gboolean       meta_window_actor_is_destroyed (MetaWindowActor *self);

--- a/src/meta/prefs.h
+++ b/src/meta/prefs.h
@@ -49,7 +49,6 @@
 * @META_PREF_TITLEBAR_FONT: title-bar font
 * @META_PREF_NUM_WORKSPACES: number of workspaces
 * @META_PREF_DYNAMIC_WORKSPACES: dynamic workspaces
- * @META_PREF_APPLICATION_BASED: application-based
 * @META_PREF_KEYBINDINGS: keybindings
 * @META_PREF_DISABLE_WORKAROUNDS: disable workarounds
 * @META_PREF_BUTTON_LAYOUT: button layout
@@ -88,7 +87,6 @@ typedef enum
  META_PREF_TITLEBAR_FONT,
  META_PREF_NUM_WORKSPACES,
  META_PREF_DYNAMIC_WORKSPACES,
-  META_PREF_APPLICATION_BASED,
  META_PREF_KEYBINDINGS,
  META_PREF_DISABLE_WORKAROUNDS,
  META_PREF_BUTTON_LAYOUT,
@@ -136,7 +134,6 @@ const char*                 meta_prefs_get_theme              (void);
 const PangoFontDescription* meta_prefs_get_titlebar_font      (void);
 int                         meta_prefs_get_num_workspaces     (void);
 gboolean                    meta_prefs_get_dynamic_workspaces (void);
-gboolean                    meta_prefs_get_application_based  (void);
 gboolean                    meta_prefs_get_disable_workarounds (void);
 gboolean                    meta_prefs_get_auto_raise         (void);
 int                         meta_prefs_get_auto_raise_delay   (void);
@@ -353,6 +350,7 @@ typedef enum _MetaKeyBindingAction
  META_KEYBINDING_ACTION_MOVE_TO_SIDE_W,
  META_KEYBINDING_ACTION_MOVE_TO_CENTER,
  META_KEYBINDING_ACTION_OVERLAY_KEY,
+  META_KEYBINDING_ACTION_ISO_NEXT_GROUP,

  META_KEYBINDING_ACTION_LAST
 } MetaKeyBindingAction;
@@ -442,6 +440,7 @@ void meta_prefs_get_window_binding (const char          *name,
                                    MetaVirtualModifier *modifiers);

 void meta_prefs_get_overlay_binding (MetaKeyCombo *combo);
+const char *meta_prefs_get_iso_next_group_option (void);

 gboolean           meta_prefs_get_visual_bell      (void);
 gboolean           meta_prefs_bell_is_audible      (void);
--- a/src/meta/preview-widget.h
+++ b/src/meta/preview-widget.h
@@ -1,87 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-/* Metacity theme preview widget */
-
-/* 
- * Copyright (C) 2002 Havoc Pennington
- * 
- * 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 <meta/common.h>
-#include <meta/theme.h>
-#include <gtk/gtk.h>
-
-#ifndef META_PREVIEW_WIDGET_H
-#define META_PREVIEW_WIDGET_H
-
-#define META_TYPE_PREVIEW			 (meta_preview_get_type ())
-#define META_PREVIEW(obj)			 (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_PREVIEW, MetaPreview))
-#define META_PREVIEW_CLASS(klass)		 (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_PREVIEW, MetaPreviewClass))
-#define META_IS_PREVIEW(obj)		 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_PREVIEW))
-#define META_IS_PREVIEW_CLASS(klass)	 (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_PREVIEW))
-#define META_PREVIEW_GET_CLASS(obj)         (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_PREVIEW, MetaPreviewClass))
-
-typedef struct _MetaPreview	MetaPreview;
-typedef struct _MetaPreviewClass	MetaPreviewClass;
-
-struct _MetaPreview
-{
-  GtkBin bin;
-
-  GtkStyleContext *style_context;
-
-  MetaTheme *theme;
-  char *title;
-  MetaFrameType type;
-  MetaFrameFlags flags;  
-
-  PangoLayout *layout;
-  int text_height;
-
-  MetaFrameBorders borders;
-  guint            borders_cached : 1;
-
-  MetaButtonLayout button_layout;
-};
-
-struct _MetaPreviewClass
-{
-  /*< private >*/
-  GtkBinClass parent_class;
-};
-
-
-GType    meta_preview_get_type (void) G_GNUC_CONST;
-GtkWidget* meta_preview_new	 (void);
-
-void meta_preview_set_theme         (MetaPreview            *preview,
-                                     MetaTheme              *theme);
-void meta_preview_set_title         (MetaPreview            *preview,
-                                     const char             *title);
-void meta_preview_set_frame_type    (MetaPreview            *preview,
-                                     MetaFrameType           type);
-void meta_preview_set_frame_flags   (MetaPreview            *preview,
-                                     MetaFrameFlags          flags);
-void meta_preview_set_button_layout (MetaPreview            *preview,
-                                     const MetaButtonLayout *button_layout);
-
-GdkPixbuf* meta_preview_get_icon (void);
-GdkPixbuf* meta_preview_get_mini_icon (void);
-
-#endif
--- a/src/meta/screen.h
+++ b/src/meta/screen.h
@@ -78,6 +78,9 @@ MetaWorkspace * meta_screen_get_active_workspace (MetaScreen *screen);
 int  meta_screen_get_n_monitors       (MetaScreen    *screen);
 int  meta_screen_get_primary_monitor  (MetaScreen    *screen);
 int  meta_screen_get_current_monitor  (MetaScreen    *screen);
+int  meta_screen_get_current_monitor_for_pos  (MetaScreen    *screen,
+                                               int x,
+                                               int y);
 void meta_screen_get_monitor_geometry (MetaScreen    *screen,
                                       int            monitor,
                                       MetaRectangle *geometry);
--- a/src/meta/theme.h
+++ b/src/meta/theme.h
@@ -33,8 +33,7 @@
 typedef struct _MetaTheme MetaTheme;

 MetaTheme* meta_theme_get_current (void);
-void       meta_theme_set_current (const char *name,
-                                   gboolean    force_reload);
+void       meta_theme_set_current (const char *name);

 MetaTheme* meta_theme_new      (void);
 void       meta_theme_free     (MetaTheme *theme);
--- 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))
@@ -237,4 +247,6 @@ void meta_window_begin_grab_op (MetaWindow *window,
                                gboolean    frame_action,
                                guint32     timestamp);

+gboolean meta_window_can_close (MetaWindow *window);
+
 #endif
--- 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/stock_delete.png
+++ b/src/stock_delete.png
--- a/src/stock_maximize.png
+++ b/src/stock_maximize.png
--- a/src/stock_minimize.png
+++ b/src/stock_minimize.png
--- a/src/tools/.cvsignore
+++ b/src/tools/.cvsignore
@@ -1,8 +0,0 @@
-Makefile
-Makefile.in
-metacity-grayscale
-metacity-message
-metacity-mag
-metacity-properties
-metacity-properties.desktop
-metacity-window-demo
--- a/src/tools/Makefile.am
+++ b/src/tools/Makefile.am
@@ -1,34 +0,0 @@
-@INTLTOOL_DESKTOP_RULE@
-
-icondir=$(pkgdatadir)/icons
-icon_DATA=mutter-window-demo.png
-
-INCLUDES=@MUTTER_WINDOW_DEMO_CFLAGS@ @MUTTER_MESSAGE_CFLAGS@ \
-	-I$(top_srcdir)/src \
-	-DMUTTER_ICON_DIR=\"$(pkgdatadir)/icons\" \
-	-DMUTTER_LOCALEDIR=\"$(prefix)/@DATADIRNAME@/locale\"
-
-mutter_message_SOURCES= 				\
-	mutter-message.c
-
-mutter_window_demo_SOURCES=				\
-	mutter-window-demo.c
-
-mutter_mag_SOURCES=					\
-	mutter-mag.c
-
-mutter_grayscale_SOURCES=				\
-	mutter-grayscale.c
-
-bin_PROGRAMS=mutter-message mutter-window-demo
-
-## cheesy hacks I use, don't really have any business existing. ;-)
-noinst_PROGRAMS=mutter-mag mutter-grayscale
-
-mutter_message_LDADD= @MUTTER_MESSAGE_LIBS@
-mutter_window_demo_LDADD= @MUTTER_WINDOW_DEMO_LIBS@
-mutter_mag_LDADD= @MUTTER_WINDOW_DEMO_LIBS@
-mutter_grayscale_LDADD = @MUTTER_WINDOW_DEMO_LIBS@
-
-EXTRA_DIST=$(icon_DATA)
-
--- a/src/tools/mutter-grayscale.c
+++ b/src/tools/mutter-grayscale.c
@@ -1,107 +0,0 @@
-/* Hack for grayscaling an image */
-
-/* 
- * Copyright (C) 2002 Red Hat Inc.
- * 
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#include <gdk-pixbuf/gdk-pixbuf.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <math.h>
-
-#define INTENSITY(r, g, b) ((r) * 0.30 + (g) * 0.59 + (b) * 0.11)
-
-static GdkPixbuf*
-grayscale_pixbuf (GdkPixbuf *pixbuf)
-{
-  GdkPixbuf *gray;
-  guchar *pixels;
-  int rowstride;
-  int pixstride;
-  int row;
-  int n_rows;
-  int width;
-  
-  gray = gdk_pixbuf_copy (pixbuf);
-  rowstride = gdk_pixbuf_get_rowstride (gray);
-  pixstride = gdk_pixbuf_get_has_alpha (gray) ? 4 : 3;
-  
-  pixels = gdk_pixbuf_get_pixels (gray);
-  n_rows = gdk_pixbuf_get_height (gray);
-  width = gdk_pixbuf_get_width (gray);
-  
-  row = 0;
-  while (row < n_rows)
-    {
-      guchar *p = pixels + row * rowstride;
-      guchar *end = p + (pixstride * width);
-
-      while (p != end)
-        {
-          double v = INTENSITY (p[0], p[1], p[2]);
-
-          p[0] = (guchar) v;
-          p[1] = (guchar) v;
-          p[2] = (guchar) v;
-          
-          p += pixstride;
-        }
-      
-      ++row;
-    }
-  
-  return gray;
-}
-
-int
-main (int argc, char **argv)
-{
-  GdkPixbuf *pixbuf;
-  GdkPixbuf *gray;
-  GError *err;
-  
-  if (argc != 2)
-    {
-      g_printerr ("specify a single image on the command line\n");
-      return 1;
-    }
-
-  err = NULL;
-  pixbuf = gdk_pixbuf_new_from_file (argv[1], &err);
-  if (err != NULL)
-    {
-      g_printerr ("failed to load image: %s\n", err->message);
-      g_error_free (err);
-      return 1;
-    }
-
-  gray = grayscale_pixbuf (pixbuf);
-  
-  err = NULL;
-  gdk_pixbuf_save (gray, "grayscale.png", "png", &err, NULL);
-  if (err != NULL)
-    {
-      g_printerr ("failed to save image: %s\n", err->message);
-      g_error_free (err);
-      return 1;
-    }
-
-  g_print ("wrote grayscale.png\n");
-  
-  return 0;
-}
--- a/src/tools/mutter-mag.c
+++ b/src/tools/mutter-mag.c
@@ -1,299 +0,0 @@
-/* Hack for use instead of xmag */
-
-/* 
- * Copyright (C) 2002 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.
- */
-
-#define _GNU_SOURCE
-#define _XOPEN_SOURCE 600 /* C99 -- for rint() */
-
-#include <gtk/gtk.h>
-#include <gdk/gdkx.h>
-#include <gdk/gdkkeysyms.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <math.h>
-
-static GtkWidget *grab_widget = NULL;
-static GtkWidget *display_window = NULL;
-static int last_grab_x = 0;
-static int last_grab_y = 0;
-static int last_grab_width = 150;
-static int last_grab_height = 150;
-static GtkAllocation last_grab_allocation;
-static double width_factor = 4.0;
-static double height_factor = 4.0;
-static GdkInterpType interp_mode = GDK_INTERP_NEAREST;
-static guint regrab_idle_id = 0;
-
-static GdkPixbuf*
-get_pixbuf (void)
-{
-  GdkPixbuf *screenshot;
-  GdkPixbuf *magnified;
-
-#if 0
-  g_print ("Size %d x %d\n",
-           last_grab_width, last_grab_height);
-#endif
-  
-  screenshot = gdk_pixbuf_get_from_window (gdk_get_default_root_window (),
-                                           last_grab_x, last_grab_y,
-                                           last_grab_width, last_grab_height);
-
-  if (screenshot == NULL)
-    {
-      g_printerr ("Screenshot failed\n");
-      exit (1);
-    }
-
-  magnified = gdk_pixbuf_scale_simple (screenshot, last_grab_width * width_factor,
-                                       last_grab_height * height_factor,
-                                       interp_mode);
-
-
-  g_object_unref (G_OBJECT (screenshot));
-
-  return magnified;
-}
-
-static gboolean
-regrab_idle (GtkWidget *image)
-{
-  GtkAllocation allocation;
-  GdkPixbuf *magnified;
-
-  gtk_widget_get_allocation (image, &allocation);
-
-  if (allocation.width != last_grab_allocation.width ||
-      allocation.height != last_grab_allocation.height)
-    {
-      last_grab_width = rint (allocation.width / width_factor);
-      last_grab_height = rint (allocation.height / height_factor);
-      last_grab_allocation = allocation;
-      
-      magnified = get_pixbuf ();
-
-      gtk_image_set_from_pixbuf (GTK_IMAGE (image), magnified);
-
-      g_object_unref (G_OBJECT (magnified));
-    }
-
-  regrab_idle_id = 0;
-  
-  return FALSE;
-}
-
-static void
-image_resized (GtkWidget *image)
-{
-  if (regrab_idle_id == 0)
-    regrab_idle_id = g_idle_add_full (G_PRIORITY_LOW + 100, (GSourceFunc) regrab_idle,
-                                      image, NULL);
-}
-
-static void
-grab_area_at_mouse (GtkWidget *invisible,
-                    int        x_root,
-                    int        y_root)
-{
-  GdkPixbuf *magnified;
-  int width, height;
-  GtkWidget *widget;
-  
-  width = last_grab_width;
-  height = last_grab_height;
-
-  last_grab_x = x_root;
-  last_grab_y = y_root;
-  last_grab_width = width;
-  last_grab_height = height;
-  
-  magnified = get_pixbuf ();
-  
-  display_window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
-  gtk_window_set_default_size (GTK_WINDOW (display_window),
-                               last_grab_width, last_grab_height);
-  widget = gtk_image_new_from_pixbuf (magnified);
-  gtk_widget_set_size_request (widget, 40, 40);
-  gtk_container_add (GTK_CONTAINER (display_window), widget);
-  g_object_unref (G_OBJECT (magnified));
-
-  g_object_add_weak_pointer (G_OBJECT (display_window),
-                             (gpointer) &display_window);
-
-  g_signal_connect (G_OBJECT (display_window), "destroy",
-                    G_CALLBACK (gtk_main_quit), NULL);
-
-  g_signal_connect_after (G_OBJECT (widget), "size_allocate", G_CALLBACK (image_resized), NULL);
-  
-  gtk_widget_show_all (display_window);
-}
-
-static void
-shutdown_grab (void)
-{
-  GdkDeviceManager *manager;
-  GdkDevice *device;
-
-  manager = gdk_display_get_device_manager (gdk_display_get_default ());
-  device = gdk_device_manager_get_client_pointer (manager);
-
-  gdk_device_ungrab (device, gtk_get_current_event_time ());
-  gdk_device_ungrab (gdk_device_get_associated_device (device),
-                     gtk_get_current_event_time ());
-  gtk_grab_remove (grab_widget);
-}
-
-static void
-mouse_motion (GtkWidget      *invisible,
-	      GdkEventMotion *event,
-	      gpointer        data)
-{
-  
-}
-
-static gboolean
-mouse_release (GtkWidget      *invisible,
-	       GdkEventButton *event,
-	       gpointer        data)
-{
-  if (event->button != 1)
-    return FALSE;
-
-  grab_area_at_mouse (invisible, event->x_root, event->y_root);
-
-  shutdown_grab ();
-  
-  g_signal_handlers_disconnect_by_func (invisible, mouse_motion, NULL);
-  g_signal_handlers_disconnect_by_func (invisible, mouse_release, NULL);
-
-  return TRUE;
-}
-
-/* Helper Functions */
-
-static gboolean mouse_press (GtkWidget      *invisible,
-                             GdkEventButton *event,
-                             gpointer        data);
-
-static gboolean
-key_press (GtkWidget   *invisible,
-           GdkEventKey *event,
-           gpointer     data)
-{  
-  if (event->keyval == GDK_KEY_Escape)
-    {
-      shutdown_grab ();
-
-      g_signal_handlers_disconnect_by_func (invisible, mouse_press, NULL);
-      g_signal_handlers_disconnect_by_func (invisible, key_press, NULL);
-      
-      gtk_main_quit ();
-
-      return TRUE;
-    }
-
-  return FALSE;
-}
-
-static gboolean
-mouse_press (GtkWidget      *invisible,
-	     GdkEventButton *event,
-	     gpointer        data)
-{  
-  if (event->type == GDK_BUTTON_PRESS &&
-      event->button == 1)
-    {
-      g_signal_connect (invisible, "motion_notify_event",
-                        G_CALLBACK (mouse_motion), NULL);
-      g_signal_connect (invisible, "button_release_event",
-                        G_CALLBACK (mouse_release), NULL);
-      g_signal_handlers_disconnect_by_func (invisible, mouse_press, NULL);
-      g_signal_handlers_disconnect_by_func (invisible, key_press, NULL);
-      return TRUE;
-    }
-
-  return FALSE;
-}
-
-static void
-begin_area_grab (void)
-{
-  GdkWindow *window;
-  GdkDeviceManager *manager;
-  GdkDevice *device;
-
-  if (grab_widget == NULL)
-    {
-      grab_widget = gtk_invisible_new ();
-
-      gtk_widget_add_events (grab_widget,
-                             GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK);
-      
-      gtk_widget_show (grab_widget);
-    }
-
-  window = gtk_widget_get_window (grab_widget);
-  manager = gdk_display_get_device_manager (gdk_display_get_default ());
-  device = gdk_device_manager_get_client_pointer (manager);
-
-  if (gdk_device_grab (device,
-                       window,
-                       GDK_OWNERSHIP_NONE,
-                       FALSE,
-                       GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK,
-                       NULL,
-                       gtk_get_current_event_time ()) != GDK_GRAB_SUCCESS)
-    {
-      g_warning ("Failed to grab pointer to do eyedropper");
-      return;
-    }
-
-  if (gdk_device_grab (gdk_device_get_associated_device (device),
-                       window,
-                       GDK_OWNERSHIP_NONE,
-                       FALSE,
-                       GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
-                       NULL,
-                       gtk_get_current_event_time ()) != GDK_GRAB_SUCCESS)
-    {
-      gdk_device_ungrab (device, gtk_get_current_event_time ());
-      g_warning ("Failed to grab keyboard to do eyedropper");
-      return;
-    }
-
-  gtk_grab_add (grab_widget);
-  
-  g_signal_connect (grab_widget, "button_press_event",
-                    G_CALLBACK (mouse_press), NULL);
-  g_signal_connect (grab_widget, "key_press_event",
-                    G_CALLBACK (key_press), NULL);
-}
-
-int
-main (int argc, char **argv)
-{
-  gtk_init (&argc, &argv);
-
-  begin_area_grab ();
-  
-  gtk_main ();
-  
-  return 0;
-}
--- a/src/tools/mutter-message.c
+++ b/src/tools/mutter-message.c
@@ -1,160 +0,0 @@
-/* Mutter send-magic-messages app */
-
-/*
- * Copyright (C) 2002 Havoc Pennington
- *
- * 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 <gtk/gtk.h>
-#include <gdk/gdkx.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <libintl.h>
-#define _(x) dgettext (GETTEXT_PACKAGE, x)
-#define N_(x) x
-
-static Display *display;
-
-static void
-send_reload_theme (void)
-{
-  XEvent xev;
-
-  xev.xclient.type = ClientMessage;
-  xev.xclient.serial = 0;
-  xev.xclient.send_event = True;
-  xev.xclient.display = display;
-  xev.xclient.window = gdk_x11_get_default_root_xwindow ();
-  xev.xclient.message_type = XInternAtom (display,
-                                          "_MUTTER_RELOAD_THEME_MESSAGE",
-                                          False);
-  xev.xclient.format = 32;
-  xev.xclient.data.l[0] = 0;
-  xev.xclient.data.l[1] = 0;
-  xev.xclient.data.l[2] = 0;
-
-  XSendEvent (display,
-              gdk_x11_get_default_root_xwindow (),
-              False,
-	      SubstructureRedirectMask | SubstructureNotifyMask,
-	      &xev);
-
-  XFlush (display);
-  XSync (display, False);
-}
-
-static void
-send_set_keybindings (gboolean enabled)
-{
-  XEvent xev;
-
-  xev.xclient.type = ClientMessage;
-  xev.xclient.serial = 0;
-  xev.xclient.send_event = True;
-  xev.xclient.display = display;
-  xev.xclient.window = gdk_x11_get_default_root_xwindow ();
-  xev.xclient.message_type = XInternAtom (display,
-                                          "_MUTTER_SET_KEYBINDINGS_MESSAGE",
-                                          False);
-  xev.xclient.format = 32;
-  xev.xclient.data.l[0] = enabled;
-  xev.xclient.data.l[1] = 0;
-  xev.xclient.data.l[2] = 0;
-
-  XSendEvent (display,
-              gdk_x11_get_default_root_xwindow (),
-              False,
-	      SubstructureRedirectMask | SubstructureNotifyMask,
-	      &xev);
-
-  XFlush (display);
-  XSync (display, False);
-}
-
-#ifdef WITH_VERBOSE_MODE
-static void
-send_toggle_verbose (void)
-{
-  XEvent xev;
-
-  xev.xclient.type = ClientMessage;
-  xev.xclient.serial = 0;
-  xev.xclient.send_event = True;
-  xev.xclient.display = display;
-  xev.xclient.window = gdk_x11_get_default_root_xwindow ();
-  xev.xclient.message_type = XInternAtom (display,
-                                          "_MUTTER_TOGGLE_VERBOSE",
-                                          False);
-  xev.xclient.format = 32;
-  xev.xclient.data.l[0] = 0;
-  xev.xclient.data.l[1] = 0;
-  xev.xclient.data.l[2] = 0;
-
-  XSendEvent (display,
-              gdk_x11_get_default_root_xwindow (),
-              False,
-	      SubstructureRedirectMask | SubstructureNotifyMask,
-	      &xev);
-
-  XFlush (display);
-  XSync (display, False);
-}
-#endif
-
-static void
-usage (void)
-{
-  g_printerr (_("Usage: %s\n"),
-              "mutter-message (reload-theme|enable-keybindings|disable-keybindings|toggle-verbose)");
-  exit (1);
-}
-
-int
-main (int argc, char **argv)
-{
-  bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
-  
-  gtk_init (&argc, &argv);
-
-  if (argc < 2)
-    usage ();
-
-  display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
-
-  if (strcmp (argv[1], "reload-theme") == 0)
-    send_reload_theme ();
-  else if (strcmp (argv[1], "enable-keybindings") == 0)
-    send_set_keybindings (TRUE);
-  else if (strcmp (argv[1], "disable-keybindings") == 0)
-    send_set_keybindings (FALSE);
-  else if (strcmp (argv[1], "toggle-verbose") == 0)
-    {
-#ifndef WITH_VERBOSE_MODE
-      g_printerr (_("Mutter was compiled without support for verbose mode\n"));
-      return 1;
-#else      
-      send_toggle_verbose ();
-#endif
-    }
-  else
-    usage ();
-  
-  return 0;
-}
-
--- a/src/tools/mutter-window-demo.c
+++ b/src/tools/mutter-window-demo.c
--- a/src/tools/mutter-window-demo.png
+++ b/src/tools/mutter-window-demo.png
--- a/src/ui/menu.c
+++ b/src/ui/menu.c
@@ -40,7 +40,6 @@ typedef enum
 {
  MENU_ITEM_SEPARATOR = 0,
  MENU_ITEM_NORMAL,
-  MENU_ITEM_IMAGE,
  MENU_ITEM_CHECKBOX,
  MENU_ITEM_RADIOBUTTON,
  MENU_ITEM_WORKSPACE_LIST,
@@ -50,7 +49,6 @@ struct _MenuItem
 {
  MetaMenuOp op;
  MetaMenuItemType type;
-  const char *stock_id;
  const gboolean checked;
  const char *label;
 };
@@ -66,42 +64,42 @@ static void activate_cb (GtkWidget *menuitem, gpointer data);

 static MenuItem menuitems[] = {
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_MINIMIZE, MENU_ITEM_IMAGE, METACITY_STOCK_MINIMIZE, FALSE, N_("Mi_nimize") },
+  { META_MENU_OP_MINIMIZE, MENU_ITEM_NORMAL, FALSE, N_("Mi_nimize") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_MAXIMIZE, MENU_ITEM_IMAGE, METACITY_STOCK_MAXIMIZE, FALSE, N_("Ma_ximize") },
+  { META_MENU_OP_MAXIMIZE, MENU_ITEM_NORMAL, FALSE, N_("Ma_ximize") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_UNMAXIMIZE, MENU_ITEM_NORMAL, NULL, FALSE, N_("Unma_ximize") },
+  { META_MENU_OP_UNMAXIMIZE, MENU_ITEM_NORMAL, FALSE, N_("Unma_ximize") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_SHADE, MENU_ITEM_NORMAL, NULL, FALSE, N_("Roll _Up") },
+  { META_MENU_OP_SHADE, MENU_ITEM_NORMAL, FALSE, N_("Roll _Up") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_UNSHADE, MENU_ITEM_NORMAL, NULL, FALSE, N_("_Unroll") },
+  { META_MENU_OP_UNSHADE, MENU_ITEM_NORMAL, FALSE, N_("_Unroll") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_MOVE, MENU_ITEM_NORMAL, NULL, FALSE, N_("_Move") },
+  { META_MENU_OP_MOVE, MENU_ITEM_NORMAL, FALSE, N_("_Move") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_RESIZE, MENU_ITEM_NORMAL, NULL, FALSE, N_("_Resize") },
+  { META_MENU_OP_RESIZE, MENU_ITEM_NORMAL, FALSE, N_("_Resize") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_RECOVER, MENU_ITEM_NORMAL, NULL, FALSE, N_("Move Titlebar On_screen") },
-  { META_MENU_OP_WORKSPACES, MENU_ITEM_SEPARATOR, NULL, FALSE, NULL }, /* separator */
+  { META_MENU_OP_RECOVER, MENU_ITEM_NORMAL, FALSE, N_("Move Titlebar On_screen") },
+  { META_MENU_OP_WORKSPACES, MENU_ITEM_SEPARATOR, FALSE, NULL }, /* separator */
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_ABOVE, MENU_ITEM_CHECKBOX, NULL, FALSE, N_("Always on _Top") },
+  { META_MENU_OP_ABOVE, MENU_ITEM_CHECKBOX, FALSE, N_("Always on _Top") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_UNABOVE, MENU_ITEM_CHECKBOX, NULL, TRUE, N_("Always on _Top") },
+  { META_MENU_OP_UNABOVE, MENU_ITEM_CHECKBOX, TRUE, N_("Always on _Top") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_STICK, MENU_ITEM_RADIOBUTTON, NULL, FALSE, N_("_Always on Visible Workspace") },
+  { META_MENU_OP_STICK, MENU_ITEM_RADIOBUTTON, FALSE, N_("_Always on Visible Workspace") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_UNSTICK, MENU_ITEM_RADIOBUTTON, NULL, FALSE,  N_("_Only on This Workspace") },
+  { META_MENU_OP_UNSTICK, MENU_ITEM_RADIOBUTTON, FALSE,  N_("_Only on This Workspace") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_MOVE_LEFT, MENU_ITEM_NORMAL, NULL, FALSE, N_("Move to Workspace _Left") },
+  { META_MENU_OP_MOVE_LEFT, MENU_ITEM_NORMAL, FALSE, N_("Move to Workspace _Left") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_MOVE_RIGHT, MENU_ITEM_NORMAL, NULL, FALSE, N_("Move to Workspace R_ight") },
+  { META_MENU_OP_MOVE_RIGHT, MENU_ITEM_NORMAL, FALSE, N_("Move to Workspace R_ight") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_MOVE_UP, MENU_ITEM_NORMAL, NULL, FALSE, N_("Move to Workspace _Up") },
+  { META_MENU_OP_MOVE_UP, MENU_ITEM_NORMAL, FALSE, N_("Move to Workspace _Up") },
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_MOVE_DOWN, MENU_ITEM_NORMAL, NULL, FALSE, N_("Move to Workspace _Down") },
-  { 0, MENU_ITEM_WORKSPACE_LIST, NULL, FALSE, NULL },
-  { 0, MENU_ITEM_SEPARATOR, NULL, FALSE, NULL }, /* separator */
+  { META_MENU_OP_MOVE_DOWN, MENU_ITEM_NORMAL, FALSE, N_("Move to Workspace _Down") },
+  { 0, MENU_ITEM_WORKSPACE_LIST, FALSE, NULL },
+  { 0, MENU_ITEM_SEPARATOR, FALSE, NULL }, /* separator */
  /* Translators: Translate this string the same way as you do in libwnck! */
-  { META_MENU_OP_DELETE, MENU_ITEM_IMAGE, METACITY_STOCK_DELETE, FALSE, N_("_Close") }
+  { META_MENU_OP_DELETE, MENU_ITEM_NORMAL, FALSE, N_("_Close") }
 };

 static void
@@ -274,16 +272,6 @@ menu_item_new (MenuItem *menuitem, int workspace_id)
    {
      mi = gtk_menu_item_new ();
    }
-  else if (menuitem->type == MENU_ITEM_IMAGE)
-    {
-      GtkWidget *image;
-      
-      image = gtk_image_new_from_stock (menuitem->stock_id, GTK_ICON_SIZE_MENU);
-      mi = gtk_image_menu_item_new ();
-     
-      gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (mi), image);
-      gtk_widget_show (image);
-    }
  else if (menuitem->type == MENU_ITEM_CHECKBOX)
    {
      mi = gtk_check_menu_item_new ();
@@ -392,8 +380,7 @@ meta_window_menu_new   (MetaFrames         *frames,
                  int j;

                  MenuItem to_another_workspace = {
-                    0, MENU_ITEM_NORMAL,
-                    NULL, FALSE,
+                    0, MENU_ITEM_NORMAL, FALSE,
                    N_("Move to Another _Workspace")
                  };

--- a/src/ui/menu.h
+++ b/src/ui/menu.h
@@ -27,11 +27,6 @@
 #include <gtk/gtk.h>
 #include "frames.h"

-/* Stock icons */
-#define METACITY_STOCK_DELETE   "metacity-delete"
-#define METACITY_STOCK_MINIMIZE "metacity-minimize"
-#define METACITY_STOCK_MAXIMIZE "metacity-maximize"
-
 struct _MetaWindowMenu
 {
  MetaFrames *frames;
--- a/src/ui/preview-widget.c
+++ b/src/ui/preview-widget.c
@@ -1,496 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-/* 
- * Copyright (C) 2002 Havoc Pennington
- * 
- * 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.
- */
-
-/*
- * SECTION:preview-widget
- * @title: MetaPreview
- * @short_description: Mutter theme preview widget
- */
-
-#define _GNU_SOURCE
-#define _XOPEN_SOURCE 600 /* for the maths routines over floats */
-
-#include <math.h>
-#include <gtk/gtk.h>
-#include <meta/preview-widget.h>
-#include "theme-private.h"
-
-static void     meta_preview_get_preferred_width  (GtkWidget *widget,
-                                                   gint      *minimum,
-                                                   gint      *natural);
-static void     meta_preview_get_preferred_height (GtkWidget *widget,
-                                                   gint      *minimum,
-                                                   gint      *natural);
-static void     meta_preview_size_allocate (GtkWidget        *widget,
-                                            GtkAllocation    *allocation);
-static gboolean meta_preview_draw          (GtkWidget        *widget,
-                                            cairo_t          *cr);
-static void     meta_preview_realize       (GtkWidget        *widget);
-static void     meta_preview_dispose       (GObject          *object);
-static void     meta_preview_finalize      (GObject          *object);
-
-G_DEFINE_TYPE (MetaPreview, meta_preview, GTK_TYPE_BIN);
-
-static void
-meta_preview_class_init (MetaPreviewClass *class)
-{
-  GObjectClass *gobject_class = G_OBJECT_CLASS (class);
-  GtkWidgetClass *widget_class;
-
-  widget_class = (GtkWidgetClass*) class;
-
-  gobject_class->dispose = meta_preview_dispose;
-  gobject_class->finalize = meta_preview_finalize;
-
-  widget_class->realize = meta_preview_realize;
-  widget_class->draw = meta_preview_draw;
-  widget_class->get_preferred_width = meta_preview_get_preferred_width;
-  widget_class->get_preferred_height = meta_preview_get_preferred_height;
-  widget_class->size_allocate = meta_preview_size_allocate;
-
-  gtk_container_class_handle_border_width (GTK_CONTAINER_CLASS (class));
-}
-
-static void
-meta_preview_init (MetaPreview *preview)
-{
-  int i;
-
-  gtk_widget_set_has_window (GTK_WIDGET (preview), FALSE);
-
-  i = 0;
-  while (i < MAX_BUTTONS_PER_CORNER)
-    {
-      preview->button_layout.left_buttons[i] = META_BUTTON_FUNCTION_LAST;
-      preview->button_layout.right_buttons[i] = META_BUTTON_FUNCTION_LAST;
-      ++i;
-    }
-  
-  preview->button_layout.left_buttons[0] = META_BUTTON_FUNCTION_MENU;
-
-  preview->button_layout.right_buttons[0] = META_BUTTON_FUNCTION_MINIMIZE;
-  preview->button_layout.right_buttons[1] = META_BUTTON_FUNCTION_MAXIMIZE;
-  preview->button_layout.right_buttons[2] = META_BUTTON_FUNCTION_CLOSE;
-  
-  preview->type = META_FRAME_TYPE_NORMAL;
-  preview->flags =
-    META_FRAME_ALLOWS_DELETE |
-    META_FRAME_ALLOWS_MENU |
-    META_FRAME_ALLOWS_MINIMIZE |
-    META_FRAME_ALLOWS_MAXIMIZE |
-    META_FRAME_ALLOWS_VERTICAL_RESIZE |
-    META_FRAME_ALLOWS_HORIZONTAL_RESIZE |
-    META_FRAME_HAS_FOCUS |
-    META_FRAME_ALLOWS_SHADE |
-    META_FRAME_ALLOWS_MOVE;
-
-  preview->borders_cached = FALSE;
-}
-
-GtkWidget*
-meta_preview_new (void)
-{
-  MetaPreview *preview;
-  
-  preview = g_object_new (META_TYPE_PREVIEW, NULL);
-  
-  return GTK_WIDGET (preview);
-}
-
-static void
-meta_preview_dispose (GObject *object)
-{
-  MetaPreview *preview = META_PREVIEW (object);
-
-  g_clear_object (&preview->style_context);
-
-  G_OBJECT_CLASS (meta_preview_parent_class)->dispose (object);
-}
-
-static void
-meta_preview_finalize (GObject *object)
-{
-  MetaPreview *preview;
-
-  preview = META_PREVIEW (object);
-
-  g_free (preview->title);
-  preview->title = NULL;
-  
-  G_OBJECT_CLASS (meta_preview_parent_class)->finalize (object);
-}
-
-static void
-ensure_info (MetaPreview *preview)
-{
-  GtkWidget *widget;
-
-  widget = GTK_WIDGET (preview);
-  
-  if (preview->layout == NULL)
-    {
-      PangoFontDescription *font_desc;
-      double scale;
-      PangoAttrList *attrs;
-      PangoAttribute *attr;
-
-      if (preview->theme)        
-        scale = meta_theme_get_title_scale (preview->theme,
-                                            preview->type,
-                                            preview->flags);
-      else
-        scale = 1.0;
-      
-      preview->layout = gtk_widget_create_pango_layout (widget,
-                                                        preview->title);
-      
-      font_desc = meta_gtk_widget_get_font_desc (widget, scale, NULL);
-      
-      preview->text_height =
-        meta_pango_font_desc_get_text_height (font_desc,
-                                              gtk_widget_get_pango_context (widget));
-          
-      attrs = pango_attr_list_new ();
-      
-      attr = pango_attr_size_new (pango_font_description_get_size (font_desc));
-      attr->start_index = 0;
-      attr->end_index = G_MAXINT;
-      
-      pango_attr_list_insert (attrs, attr);
-      
-      pango_layout_set_attributes (preview->layout, attrs);
-      
-      pango_attr_list_unref (attrs);      
-  
-      pango_font_description_free (font_desc);
-    }
-
-  if (!preview->borders_cached)
-    {
-      if (preview->theme)
-        meta_theme_get_frame_borders (preview->theme,
-                                      preview->type,
-                                      preview->text_height,
-                                      preview->flags,
-                                      &preview->borders);
-      else
-        meta_frame_borders_clear (&preview->borders);
-      preview->borders_cached = TRUE;
-    }
-}
-
-static gboolean
-meta_preview_draw (GtkWidget *widget,
-                   cairo_t   *cr)
-{
-  MetaPreview *preview = META_PREVIEW (widget);
-  GtkAllocation allocation;
-
-  gtk_widget_get_allocation (widget, &allocation);
-
-  if (preview->theme)
-    {
-      int client_width;
-      int client_height;
-      MetaButtonState button_states[META_BUTTON_TYPE_LAST] =
-      {
-        META_BUTTON_STATE_NORMAL,
-        META_BUTTON_STATE_NORMAL,
-        META_BUTTON_STATE_NORMAL,
-        META_BUTTON_STATE_NORMAL
-      };
-  
-      ensure_info (preview);
-      cairo_save (cr);
-
-      client_width = allocation.width - preview->borders.total.left - preview->borders.total.right;
-      client_height = allocation.height - preview->borders.total.top - preview->borders.total.bottom;
-
-      if (client_width < 0)
-        client_width = 1;
-      if (client_height < 0)
-        client_height = 1;  
-      
-      meta_theme_draw_frame (preview->theme,
-                             preview->style_context,
-                             cr,
-                             preview->type,
-                             preview->flags,
-                             client_width, client_height,
-                             preview->layout,
-                             preview->text_height,
-                             &preview->button_layout,
-                             button_states,
-                             meta_preview_get_mini_icon (),
-                             meta_preview_get_icon ());
-
-      cairo_restore (cr);
-    }
-
-  /* draw child */
-  return GTK_WIDGET_CLASS (meta_preview_parent_class)->draw (widget, cr);
-}
-
-static void
-meta_preview_realize (GtkWidget *widget)
-{
-  MetaPreview *preview = META_PREVIEW (widget);
-
-  GTK_WIDGET_CLASS (meta_preview_parent_class)->realize (widget);
-
-  preview->style_context = meta_theme_create_style_context (gtk_widget_get_screen (widget),
-                                                            NULL);
-}
-
-#define NO_CHILD_WIDTH 80
-#define NO_CHILD_HEIGHT 20
-
-static void
-meta_preview_get_preferred_width (GtkWidget *widget,
-                                  gint      *minimum,
-                                  gint      *natural)
-{
-  MetaPreview *preview;
-  GtkWidget *child;
-
-  preview = META_PREVIEW (widget);
-
-  ensure_info (preview);
-
-  *minimum = *natural = preview->borders.total.left + preview->borders.total.right;
-
-  child = gtk_bin_get_child (GTK_BIN (preview));
-  if (child && gtk_widget_get_visible (child))
-    {
-      gint child_min, child_nat;
-
-      gtk_widget_get_preferred_width (child, &child_min, &child_nat);
-
-      *minimum += child_min;
-      *natural += child_nat;
-    }
-  else
-    {
-      *minimum += NO_CHILD_WIDTH;
-      *natural += NO_CHILD_WIDTH;
-    }
-}
-
-static void
-meta_preview_get_preferred_height (GtkWidget *widget,
-                                   gint      *minimum,
-                                   gint      *natural)
-{
-  MetaPreview *preview;
-  GtkWidget *child;
-
-  preview = META_PREVIEW (widget);
-
-  ensure_info (preview);
-
-  *minimum = *natural = preview->borders.total.top + preview->borders.total.bottom;
-
-  child = gtk_bin_get_child (GTK_BIN (preview));
-  if (child && gtk_widget_get_visible (child))
-    {
-      gint child_min, child_nat;
-
-      gtk_widget_get_preferred_height (child, &child_min, &child_nat);
-
-      *minimum += child_min;
-      *natural += child_nat;
-    }
-  else
-    {
-      *minimum += NO_CHILD_HEIGHT;
-      *natural += NO_CHILD_HEIGHT;
-    }
-}
-
-static void
-meta_preview_size_allocate (GtkWidget         *widget,
-                            GtkAllocation     *allocation)
-{
-  MetaPreview *preview;
-  GtkAllocation widget_allocation, child_allocation;
-  GtkWidget *child;
-
-  preview = META_PREVIEW (widget);
-
-  ensure_info (preview);
-
-  gtk_widget_set_allocation (widget, allocation);
-
-  child = gtk_bin_get_child (GTK_BIN (widget));
-  if (child && gtk_widget_get_visible (child))
-    {
-      gtk_widget_get_allocation (widget, &widget_allocation);
-      child_allocation.x = widget_allocation.x + preview->borders.total.left;
-      child_allocation.y = widget_allocation.y + preview->borders.total.top;
-
-      child_allocation.width = MAX (1, widget_allocation.width - preview->borders.total.left - preview->borders.total.right);
-      child_allocation.height = MAX (1, widget_allocation.height - preview->borders.total.top - preview->borders.total.bottom);
-
-      gtk_widget_size_allocate (child, &child_allocation);
-    }
-}
-
-static void
-clear_cache (MetaPreview *preview)
-{
-  if (preview->layout)
-    {
-      g_object_unref (G_OBJECT (preview->layout));
-      preview->layout = NULL;
-    }
-
-  preview->borders_cached = FALSE;
-}
-
-void
-meta_preview_set_theme (MetaPreview    *preview,
-                        MetaTheme      *theme)
-{
-  g_return_if_fail (META_IS_PREVIEW (preview));
-
-  preview->theme = theme;
-  
-  clear_cache (preview);
-
-  gtk_widget_queue_resize (GTK_WIDGET (preview));
-}
-
-void
-meta_preview_set_title (MetaPreview    *preview,
-                        const char     *title)
-{
-  g_return_if_fail (META_IS_PREVIEW (preview));
-
-  g_free (preview->title);
-  preview->title = g_strdup (title);
-  
-  clear_cache (preview);
-
-  gtk_widget_queue_resize (GTK_WIDGET (preview));
-}
-
-void
-meta_preview_set_frame_type (MetaPreview    *preview,
-                             MetaFrameType   type)
-{
-  g_return_if_fail (META_IS_PREVIEW (preview));
-
-  preview->type = type;
-
-  clear_cache (preview);
-
-  gtk_widget_queue_resize (GTK_WIDGET (preview));
-}
-
-void
-meta_preview_set_frame_flags (MetaPreview    *preview,
-                              MetaFrameFlags  flags)
-{
-  g_return_if_fail (META_IS_PREVIEW (preview));
-
-  preview->flags = flags;
-
-  clear_cache (preview);
-
-  gtk_widget_queue_resize (GTK_WIDGET (preview));
-}
-
-void
-meta_preview_set_button_layout (MetaPreview            *preview,
-                                const MetaButtonLayout *button_layout)
-{
-  g_return_if_fail (META_IS_PREVIEW (preview));
-  
-  preview->button_layout = *button_layout;  
-  
-  gtk_widget_queue_draw (GTK_WIDGET (preview));
-}
-
-GdkPixbuf*
-meta_preview_get_icon (void)
-{
-  static GdkPixbuf *default_icon = NULL;
-
-  if (default_icon == NULL)
-    {
-      GtkIconTheme *theme;
-      gboolean icon_exists;
-
-      theme = gtk_icon_theme_get_default ();
-
-      icon_exists = gtk_icon_theme_has_icon (theme, META_DEFAULT_ICON_NAME);
-
-      if (icon_exists)
-          default_icon = gtk_icon_theme_load_icon (theme,
-                                                   META_DEFAULT_ICON_NAME,
-                                                   META_ICON_WIDTH,
-                                                   0,
-                                                   NULL);
-      else
-          default_icon = gtk_icon_theme_load_icon (theme,
-                                                   "gtk-missing-image",
-                                                   META_ICON_WIDTH,
-                                                   0,
-                                                   NULL);
-
-      g_assert (default_icon);
-    }
-  
-  return default_icon;
-}
-
-GdkPixbuf*
-meta_preview_get_mini_icon (void)
-{
-  static GdkPixbuf *default_icon = NULL;
-
-  if (default_icon == NULL)
-    {
-      GtkIconTheme *theme;
-      gboolean icon_exists;
-
-      theme = gtk_icon_theme_get_default ();
-
-      icon_exists = gtk_icon_theme_has_icon (theme, META_DEFAULT_ICON_NAME);
-
-      if (icon_exists)
-          default_icon = gtk_icon_theme_load_icon (theme,
-                                                   META_DEFAULT_ICON_NAME,
-                                                   META_MINI_ICON_WIDTH,
-                                                   0,
-                                                   NULL);
-      else
-          default_icon = gtk_icon_theme_load_icon (theme,
-                                                   "gtk-missing-image",
-                                                   META_MINI_ICON_WIDTH,
-                                                   0,
-                                                   NULL);
-
-      g_assert (default_icon);
-    }
-  
-  return default_icon;
-}
--- a/src/ui/tabpopup.c
+++ b/src/ui/tabpopup.c
@@ -857,10 +857,7 @@ meta_convert_meta_to_wnck (MetaWindow *window, MetaScreen *screen)
  WnckWindowDisplayInfo wnck_window;
  wnck_window.icon = window->icon;
  wnck_window.mini_icon = window->mini_icon;
-  
-  wnck_window.is_active = FALSE;
-  if (window == window->display->expected_focus_window)
-    wnck_window.is_active = TRUE;
+  wnck_window.is_active = window->has_focus;

  if (window->frame)
    {
--- a/src/ui/theme-viewer.c
+++ b/src/ui/theme-viewer.c
--- a/src/ui/theme.c
+++ b/src/ui/theme.c
@@ -1880,7 +1880,7 @@ debug_print_tokens (PosToken *tokens,
 /**
 * pos_tokenize:
 * @expr: The expression
- * @tokens_p: (out) The resulting tokens
+ * @tokens_p: (out): The resulting tokens
 * @n_tokens_p: (out): The number of resulting tokens
 * @err: (out):  set to the problem if there was a problem
 
@@ -5063,16 +5063,14 @@ meta_theme_get_current (void)
 }

 void
-meta_theme_set_current (const char *name,
-                        gboolean    force_reload)
+meta_theme_set_current (const char *name)
 {
  MetaTheme *new_theme;
  GError *err;

  meta_topic (META_DEBUG_THEMES, "Setting current theme to \"%s\"\n", name);
  
-  if (!force_reload &&
-      meta_current_theme &&
+  if (meta_current_theme &&
      strcmp (name, meta_current_theme->name) == 0)
    return;
  
--- a/src/ui/ui.c
+++ b/src/ui/ui.c
@@ -4,7 +4,6 @@

 /* 
 * Copyright (C) 2002 Havoc Pennington
- * stock icon code Copyright (C) 2002 Jorn Baayen <jorn@nl.linux.org>
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
@@ -31,13 +30,10 @@
 #include "core.h"
 #include "theme-private.h"

-#include "inlinepixbufs.h"
-
 #include <string.h>
 #include <stdlib.h>
 #include <cairo-xlib.h>

-static void meta_stock_icons_init (void);
 static void meta_ui_accelerator_parse (const char      *accel,
                                       guint           *keysym,
                                       guint           *keycode,
@@ -60,10 +56,10 @@ 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));
-
-  meta_stock_icons_init ();
 }

 Display*
@@ -775,10 +771,9 @@ meta_ui_theme_get_frame_borders (MetaUI *ui,
 }

 void
-meta_ui_set_current_theme (const char *name,
-                           gboolean    force_reload)
+meta_ui_set_current_theme (const char *name)
 {
-  meta_theme_set_current (name, force_reload);
+  meta_theme_set_current (name);
  meta_invalidate_default_icons ();
 }

@@ -998,48 +993,6 @@ meta_ui_window_is_widget (MetaUI *ui,
    return FALSE;
 }

-/* stock icon code Copyright (C) 2002 Jorn Baayen <jorn@nl.linux.org> */
-typedef struct
-{
-  char *stock_id;
-  const guint8 *icon_data;
-} MetaStockIcon;
-
-static void
-meta_stock_icons_init (void)
-{
-  GtkIconFactory *factory;
-  int i;
-
-  MetaStockIcon items[] =
-  {
-    { METACITY_STOCK_DELETE,   stock_delete_data   },
-    { METACITY_STOCK_MINIMIZE, stock_minimize_data },
-    { METACITY_STOCK_MAXIMIZE, stock_maximize_data }
-  };
-
-  factory = gtk_icon_factory_new ();
-  gtk_icon_factory_add_default (factory);
-
-  for (i = 0; i < (gint) G_N_ELEMENTS (items); i++)
-    {
-      GtkIconSet *icon_set;
-      GdkPixbuf *pixbuf;
-
-      pixbuf = gdk_pixbuf_new_from_inline (-1, items[i].icon_data,
-					   FALSE,
-					   NULL);
-
-      icon_set = gtk_icon_set_new_from_pixbuf (pixbuf);
-      gtk_icon_factory_add (factory, items[i].stock_id, icon_set);
-      gtk_icon_set_unref (icon_set);
-      
-      g_object_unref (G_OBJECT (pixbuf));
-    }
-
-  g_object_unref (G_OBJECT (factory));
-}
-
 int
 meta_ui_get_drag_threshold (MetaUI *ui)
 {
--- a/src/ui/ui.h
+++ b/src/ui/ui.h
@@ -154,8 +154,7 @@ gboolean  meta_ui_window_should_not_cause_focus (Display *xdisplay,
 char*     meta_text_property_to_utf8 (Display             *xdisplay,
                                      const XTextProperty *prop);

-void     meta_ui_set_current_theme (const char *name,
-                                    gboolean    force_reload);
+void     meta_ui_set_current_theme (const char *name);
 gboolean meta_ui_have_a_theme      (void);

 /* Not a real key symbol but means "key above the tab key"; this is
--- 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/Show More
+++ b/Show More