Add keybindings for switching VTs

Once mutter is started from weston-launch on its own VT, there is
no way to change VT again (for example to actually start an application),
because the keyboard is put in raw mode.
So introduce some keybindings mimicking the standard X ones (Ctrl+Alt+Fn)
that switch the VT manually when activated.

https://bugzilla.gnome.org/show_bug.cgi?id=705861

.gitignore

@@ -23,7 +23,7 @@ src/50-mutter-navigation.xml
 src/50-mutter-system.xml
 src/50-mutter-windows.xml
 src/mutter-wm.desktop
-src/mutter.desktop
+src/mutter-wayland.desktop
 *.o
 *.a
 *.lo
@@ -46,10 +46,10 @@ POTFILES
 po/*.pot
 50-metacity-desktop-key.xml
 50-metacity-key.xml
-libmutter.pc
-mutter
+libmutter-wayland.pc
+mutter-wayland
 mutter-theme-viewer
-mutter.desktop
+mutter-wayland.desktop
 org.gnome.mutter.gschema.valid
 org.gnome.mutter.gschema.xml
 testasyncgetprop
@@ -74,6 +74,8 @@ src/mutter-enum-types.[ch]
 src/stamp-mutter-enum-types.h
 src/mutter-marshal.[ch]
 src/stamp-mutter-marshal.h
+src/meta-dbus-xrandr.[ch]
+src/meta-dbus-idle-monitor.[ch]
 src/mutter-plugins.pc
 doc/reference/*.args
 doc/reference/*.bak

NEWS

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

configure.ac

@@ -2,7 +2,7 @@ AC_PREREQ(2.50)
 
 m4_define([mutter_major_version], [3])
 m4_define([mutter_minor_version], [9])
-m4_define([mutter_micro_version], [5])
+m4_define([mutter_micro_version], [90])
 
 m4_define([mutter_version],
           [mutter_major_version.mutter_minor_version.mutter_micro_version])
@@ -19,6 +19,10 @@ AM_INIT_AUTOMAKE([1.11 foreign no-dist-gzip dist-xz tar-ustar])
 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])],)
 AM_MAINTAINER_MODE([enable])
 
+# Change pkglibdir and pkgdatadir to mutter-wayland instead of mutter
+PACKAGE="mutter-wayland"
+AC_SUBST([PACKAGE], [$PACKAGE])
+
 MUTTER_MAJOR_VERSION=mutter_major_version
 MUTTER_MINOR_VERSION=mutter_minor_version
 MUTTER_MICRO_VERSION=mutter_micro_version
@@ -34,7 +38,7 @@ AC_SUBST(MUTTER_PLUGIN_DIR)
 # Honor aclocal flags
 AC_SUBST(ACLOCAL_AMFLAGS, "\${ACLOCAL_FLAGS}")
 
-GETTEXT_PACKAGE=mutter
+GETTEXT_PACKAGE=mutter-wayland
 AC_SUBST(GETTEXT_PACKAGE)
 AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GETTEXT_PACKAGE",[Name of default gettext domain])
 
@@ -75,6 +79,8 @@ MUTTER_PC_MODULES="
    xcomposite >= 0.2 xfixes xrender xdamage xi >= 1.6.0
    $CLUTTER_PACKAGE >= 1.14.3
    cogl-1.0 >= 1.13.3
+   upower-glib > 0.9.11
+   gnome-desktop-3.0
 "
 
 GLIB_GSETTINGS
@@ -113,11 +119,6 @@ AC_ARG_ENABLE(shape,
                  [disable mutter's use of the shaped window extension]),,
   enable_shape=auto)
 
-AC_ARG_ENABLE(wayland,
-  AC_HELP_STRING([--enable-wayland],
-                 [Enable support for running as a hybrid X and Wayland compositor]),,
-  enable_wayland=no)
-
 ## 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
@@ -138,6 +139,12 @@ AM_GLIB_GNU_GETTEXT
 ## here we get the flags we'll actually use
 # GRegex requires Glib-2.14.0
 PKG_CHECK_MODULES(ALL, glib-2.0 >= 2.14.0)
+PKG_CHECK_MODULES(MUTTER_LAUNCH, libdrm libsystemd-login)
+
+saved_LIBS="$LIBS"
+LIBS="$LIBS $MUTTER_LAUNCH"
+AC_CHECK_FUNCS([sd_session_get_vt])
+LIBS="$saved_LIBS"
 
 # Unconditionally use this dir to avoid a circular dep with gnomecc
 GNOME_KEYBINDINGS_KEYSDIR="${datadir}/gnome-control-center/keybindings"
@@ -216,29 +223,16 @@ if test x$have_xcursor = xyes; then
   AC_DEFINE(HAVE_XCURSOR, , [Building with Xcursor support])
 fi
 
-have_wayland=no
-if test x$enable_wayland = "xyes"; then
-  WAYLAND_VERSION=0.1
-  AC_MSG_CHECKING([Wayland >= $WAYLAND_VERSION])
-  if ! $PKG_CONFIG --atleast-version $WAYLAND_VERSION wayland-server; then
-    AC_MSG_ERROR([wayland support enabled but no suitable wayland-server package found])
-  fi
-  AC_MSG_RESULT(yes)
+# 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"
-  AC_DEFINE(HAVE_WAYLAND, , [Building with Wayland support])
-  have_wayland=yes
-fi
-
-AM_CONDITIONAL(HAVE_WAYLAND, test x$have_wayland = "xyes")
+AC_PATH_PROG([WAYLAND_SCANNER],[wayland-scanner],[no])
+AS_IF([test "x$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 libdrm"
 PKG_CHECK_MODULES(MUTTER, $MUTTER_PC_MODULES)
 
 PKG_CHECK_EXISTS([xi >= 1.6.99.1],
@@ -476,8 +470,7 @@ doc/man/Makefile
 doc/reference/Makefile
 doc/reference/meta-docs.sgml
 src/Makefile
-src/libmutter.pc
-src/mutter-plugins.pc
+src/libmutter-wayland.pc
 src/compositor/plugins/Makefile
 protocol/Makefile
 data/Makefile
@@ -496,14 +489,12 @@ fi
 
 dnl ==========================================================================
 echo "
-mutter-$VERSION
+mutter-wayland-$VERSION
 
 	prefix:                   ${prefix}
 	source code location:	  ${srcdir}
 	compiler:		  ${CC}
 
-	Wayland:		  ${have_wayland}
-
 	Startup notification:     ${have_startup_notification}
 	libcanberra:              ${have_libcanberra}
 	Introspection:            ${found_introspection}

data/Makefile.am

@@ -1,7 +1,3 @@
-defaultcursordir = $(datadir)/mutter/cursors
+defaultcursordir = $(pkgdatadir)/cursors
 
-dist_defaultcursor_DATA =
-
-if HAVE_WAYLAND
-dist_defaultcursor_DATA += left_ptr.png
-endif
+dist_defaultcursor_DATA = left_ptr.png

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

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
-

src/Makefile.am

@@ -1,7 +1,7 @@
 # Flag build for parallelism; see https://savannah.gnu.org/patch/?6905
 .AUTOPARALLEL:
 
-lib_LTLIBRARIES = libmutter.la
+lib_LTLIBRARIES = libmutter-wayland.la
 
 SUBDIRS=compositor/plugins
 
@@ -10,6 +10,7 @@ INCLUDES=								\
 	-DCOGL_ENABLE_EXPERIMENTAL_API					\
 	-DCOGL_ENABLE_EXPERIMENTAL_2_0_API                              \
 	$(MUTTER_CFLAGS)						\
+	-I$(top_builddir)						\
 	-I$(srcdir)							\
 	-I$(srcdir)/core						\
 	-I$(srcdir)/ui							\
@@ -29,24 +30,21 @@ INCLUDES=								\
 	-DMUTTER_PLUGIN_DIR=\"@MUTTER_PLUGIN_DIR@\"			\
 	-DGETTEXT_PACKAGE=\"$(GETTEXT_PACKAGE)\"
 
-if HAVE_WAYLAND
 INCLUDES += \
 	-I$(srcdir)/wayland						\
+	-I$(builddir)/wayland						\
 	-DXWAYLAND_PATH='"@XWAYLAND_PATH@"'
-endif
 
 mutter_built_sources = \
-	mutter-enum-types.h \
-	mutter-enum-types.c
-
-if HAVE_WAYLAND
-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
-endif
 
-libmutter_la_SOURCES =				\
+libmutter_wayland_la_SOURCES =			\
 	core/async-getprop.c			\
 	core/async-getprop.h			\
 	core/barrier.c				\
@@ -75,6 +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		\
@@ -107,6 +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				\
@@ -123,6 +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				\
@@ -171,8 +181,7 @@ libmutter_la_SOURCES =				\
 	ui/ui.c					\
 	$(mutter_built_sources)
 
-if HAVE_WAYLAND
-libmutter_la_SOURCES +=				\
+libmutter_wayland_la_SOURCES +=			\
 	wayland/meta-wayland.c			\
 	wayland/meta-wayland-private.h		\
 	wayland/meta-xwayland-private.h		\
@@ -186,11 +195,12 @@ libmutter_la_SOURCES +=				\
 	wayland/meta-wayland-seat.c		\
 	wayland/meta-wayland-seat.h		\
 	wayland/meta-wayland-stage.h		\
-	wayland/meta-wayland-stage.c
-endif
+	wayland/meta-wayland-stage.c		\
+	wayland/meta-weston-launch.c		\
+	wayland/meta-weston-launch.h
 
-libmutter_la_LDFLAGS = -no-undefined
-libmutter_la_LIBADD  = $(MUTTER_LIBS)
+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
@@ -209,6 +219,8 @@ 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		\
@@ -226,16 +238,27 @@ libmutterinclude_base_headers =		\
 libmutterinclude_extra_headers =		\
 	meta/atomnames.h
 
-libmutterincludedir = $(includedir)/mutter/meta
+libmutterincludedir = $(includedir)/mutter-wayland/meta
 
 libmutterinclude_HEADERS =			\
 	$(libmutterinclude_base_headers)	\
 	$(libmutterinclude_extra_headers)
 
-bin_PROGRAMS=mutter
+bin_PROGRAMS=mutter-wayland
 
-mutter_SOURCES = core/mutter.c
-mutter_LDADD = $(MUTTER_LIBS) libmutter.la
+mutter_wayland_SOURCES = core/mutter.c
+mutter_wayland_LDADD = $(MUTTER_LIBS) libmutter-wayland.la
+
+bin_PROGRAMS+=mutter-launch
+
+mutter_launch_SOURCES = wayland/weston-launch.c wayland/weston-launch.h
+
+mutter_launch_CFLAGS = $(MUTTER_LAUNCH_CFLAGS) -DLIBDIR=\"$(libdir)\"
+mutter_launch_LDFLAGS = $(MUTTER_LAUNCH_LIBS) -lpam
+
+install-exec-hook:
+	-chown root $(DESTDIR)$(bindir)/mutter-launch
+	-chmod u+s $(DESTDIR)$(bindir)/mutter-launch
 
 if HAVE_INTROSPECTION
 include $(INTROSPECTION_MAKEFILE)
@@ -257,15 +280,15 @@ typelib_DATA = Meta-$(api_version).typelib
 
 INTROSPECTION_GIRS = Meta-$(api_version).gir
 
-Meta-$(api_version).gir: libmutter.la
+Meta-$(api_version).gir: libmutter-wayland.la
 @META_GIR@_INCLUDES = GObject-2.0 GDesktopEnums-3.0 Gdk-3.0 Gtk-3.0 Clutter-1.0 xlib-2.0 xfixes-4.0 Cogl-1.0
-@META_GIR@_EXPORT_PACKAGES = libmutter
+@META_GIR@_EXPORT_PACKAGES = libmutter-wayland
 @META_GIR@_CFLAGS = $(INCLUDES)
-@META_GIR@_LIBS = libmutter.la
+@META_GIR@_LIBS = libmutter-wayland.la
 @META_GIR@_FILES =				\
 	mutter-enum-types.h			\
 	$(libmutterinclude_base_headers)	\
-	$(filter %.c,$(libmutter_la_SOURCES))
+	$(filter %.c,$(libmutter_wayland_la_SOURCES))
 @META_GIR@_SCANNERFLAGS = --warn-all --warn-error
 
 endif
@@ -276,22 +299,17 @@ testasyncgetprop_SOURCES = core/testasyncgetprop.c
 
 noinst_PROGRAMS=testboxes testgradient testasyncgetprop
 
-testboxes_LDADD = $(MUTTER_LIBS) libmutter.la
-testgradient_LDADD = $(MUTTER_LIBS) libmutter.la
-testasyncgetprop_LDADD = $(MUTTER_LIBS) libmutter.la
+testboxes_LDADD = $(MUTTER_LIBS) libmutter-wayland.la
+testgradient_LDADD = $(MUTTER_LIBS) libmutter-wayland.la
+testasyncgetprop_LDADD = $(MUTTER_LIBS) libmutter-wayland.la
 
 @INTLTOOL_DESKTOP_RULE@
 
 desktopfilesdir=$(datadir)/applications
-desktopfiles_in_files=mutter.desktop.in
+desktopfiles_in_files=mutter-wayland.desktop.in
 desktopfiles_files=$(desktopfiles_in_files:.desktop.in=.desktop)
 desktopfiles_DATA = $(desktopfiles_files)
 
-wmpropertiesdir=$(datadir)/gnome/wm-properties
-wmproperties_in_files=mutter-wm.desktop.in
-wmproperties_files=$(wmproperties_in_files:.desktop.in=.desktop)
-wmproperties_DATA = $(wmproperties_files)
-
 xmldir       = @GNOME_KEYBINDINGS_KEYSDIR@
 xml_in_files = \
         50-mutter-navigation.xml.in	\
@@ -299,7 +317,9 @@ xml_in_files = \
         50-mutter-windows.xml.in
 xml_DATA     = $(xml_in_files:.xml.in=.xml)
 
-gsettings_SCHEMAS = org.gnome.mutter.gschema.xml
+dbus_idle_built_sources = meta-dbus-idle-monitor.c meta-dbus-idle-monitor.h
+
+gsettings_SCHEMAS = org.gnome.mutter.gschema.xml org.gnome.mutter.wayland.gschema.xml
 @INTLTOOL_XML_NOMERGE_RULE@
 @GSETTINGS_RULES@
 
@@ -307,7 +327,7 @@ convertdir = $(datadir)/GConf/gsettings
 convert_DATA = mutter-schemas.convert
 
 CLEANFILES =					\
-	mutter.desktop				\
+	mutter-wayland.desktop			\
 	mutter-wm.desktop			\
 	org.gnome.mutter.gschema.xml		\
 	$(xml_DATA)				\
@@ -317,7 +337,7 @@ CLEANFILES =					\
 
 pkgconfigdir = $(libdir)/pkgconfig
 
-pkgconfig_DATA = libmutter.pc mutter-plugins.pc
+pkgconfig_DATA = libmutter-wayland.pc
 
 EXTRA_DIST=$(desktopfiles_files) 	\
 	$(wmproperties_files)		\
@@ -327,8 +347,7 @@ EXTRA_DIST=$(desktopfiles_files) 	\
 	$(xml_in_files)			\
 	org.gnome.mutter.gschema.xml.in \
 	mutter-schemas.convert \
-	libmutter.pc.in \
-	mutter-plugins.pc.in  \
+	libmutter-wayland.pc.in \
 	mutter-enum-types.h.in \
 	mutter-enum-types.c.in
 
@@ -355,11 +374,31 @@ mutter-enum-types.c: stamp-mutter-enum-types.h mutter-enum-types.c.in
 	cp xgen-tetc mutter-enum-types.c && \
 	rm -f xgen-tetc
 
-if HAVE_WAYLAND
+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 < $< > $@
-endif

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,

src/compositor/compositor.c

@@ -84,9 +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() */
-#ifdef HAVE_WAYLAND
 #include "meta-wayland-private.h"
-#endif
 #include <X11/extensions/shape.h>
 #include <X11/extensions/Xcomposite.h>
 
@@ -391,40 +389,44 @@ meta_focus_stage_window (MetaScreen *screen,
   if (!stage)
     return;
 
-  window = clutter_x11_get_stage_window (stage);
+  if (!meta_is_wayland_compositor ())
+    {
+      window = clutter_x11_get_stage_window (stage);
 
-  if (window == None)
-    return;
+      if (window == None)
+        return;
 
-  meta_display_set_input_focus_xwindow (screen->display,
-                                        screen,
-                                        window,
-                                        timestamp);
+      meta_display_set_input_focus_xwindow (screen->display,
+                                            screen,
+                                            META_FOCUS_STAGE,
+                                            window,
+                                            timestamp);
+    }
+  else
+    {
+      meta_display_set_input_focus_xwindow (screen->display,
+                                            screen,
+                                            META_FOCUS_STAGE,
+                                            None,
+                                            timestamp);
+    }
 }
 
 gboolean
 meta_stage_is_focused (MetaScreen *screen)
 {
   ClutterStage *stage;
-  Window window;
 
   stage = CLUTTER_STAGE (meta_get_stage_for_screen (screen));
   if (!stage)
     return FALSE;
 
-  window = clutter_x11_get_stage_window (stage);
-
-  if (window == None)
-    return FALSE;
-
-  return (screen->display->focus_xwindow == window);
+  return (screen->display->focus_type == META_FOCUS_STAGE);
 }
 
 gboolean
 meta_begin_modal_for_plugin (MetaScreen       *screen,
                              MetaPlugin       *plugin,
-                             Window            grab_window,
-                             Cursor            cursor,
                              MetaModalOptions  options,
                              guint32           timestamp)
 {
@@ -435,10 +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;
 
@@ -620,9 +631,7 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
   Display        *xdisplay      = meta_display_get_xdisplay (display);
   Window          xwin;
   gint            width, height;
-#ifdef HAVE_WAYLAND
   MetaWaylandCompositor *wayland_compositor;
-#endif
 
   /* Check if the screen is already managed */
   if (meta_screen_get_compositor_data (screen))
@@ -655,14 +664,15 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
 
   /* We will have already created a stage if running as a wayland
    * compositor... */
-#ifdef HAVE_WAYLAND
   if (meta_is_wayland_compositor ())
     {
       wayland_compositor = meta_wayland_compositor_get_default ();
       info->stage = wayland_compositor->stage;
+
+      meta_screen_get_size (screen, &width, &height);
+      clutter_actor_set_size (info->stage, width, height);
     }
   else
-#endif /* HAVE_WAYLAND */
     {
       info->stage = clutter_stage_new ();
 
@@ -1409,18 +1419,25 @@ meta_compositor_sync_screen_size (MetaCompositor  *compositor,
 				  guint		   width,
 				  guint		   height)
 {
+  MetaDisplay    *display = meta_screen_get_display (screen);
+  MetaCompScreen *info    = meta_screen_get_compositor_data (screen);
+
   if (meta_is_wayland_compositor ())
     {
-      /* It's not clear at the moment how we will be dealing with screen
-       * resizing as a Wayland compositor so for now just abort if we
-       * hit this code. */
-      g_critical ("Unexpected call to meta_compositor_sync_screen_size() "
-                  "when running as a wayland compositor");
+      /* FIXME: when we support a sliced stage, this is the place to do it
+         But! This is not the place to apply KMS config, here we only
+         notify Clutter/Cogl/GL that the framebuffer sizes changed.
+
+         And because for now clutter does not do sliced, we use one
+         framebuffer the size of the whole screen, and when running on
+         bare metal MetaMonitorManager will do the necessary tricks to
+         show the right portions on the right screens.
+      */
+
+      clutter_actor_set_size (info->stage, width, height);
     }
   else
     {
-      MetaDisplay    *display = meta_screen_get_display (screen);
-      MetaCompScreen *info    = meta_screen_get_compositor_data (screen);
       Display        *xdisplay;
       Window          xwin;
 
@@ -1431,11 +1448,11 @@ meta_compositor_sync_screen_size (MetaCompositor  *compositor,
       xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
 
       XResizeWindow (xdisplay, xwin, width, height);
-
-      meta_verbose ("Changed size for stage on screen %d to %dx%d\n",
-                    meta_screen_get_screen_number (screen),
-                    width, height);
     }
+
+  meta_verbose ("Changed size for stage on screen %d to %dx%d\n",
+                meta_screen_get_screen_number (screen),
+                width, height);
 }
 
 static void

src/compositor/meta-background.c

@@ -1031,7 +1031,6 @@ meta_background_load_file_finish (MetaBackground  *self,
                                   GAsyncResult    *result,
                                   GError         **error)
 {
-  static CoglUserDataKey key;
   GTask *task;
   LoadFileTaskData *task_data;
   CoglTexture *texture;
@@ -1077,12 +1076,6 @@ meta_background_load_file_finish (MetaBackground  *self,
       goto out;
     }
 
-  cogl_object_set_user_data (COGL_OBJECT (texture),
-                             &key,
-                             g_object_ref (pixbuf),
-                             (CoglUserDataDestroyCallback)
-                             g_object_unref);
-
   ensure_pipeline (self);
   unset_texture (self);
   set_style (self, task_data->style);

src/compositor/meta-plugin-manager.c

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

src/compositor/meta-plugin-manager.h

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

src/compositor/meta-plugin.c

@@ -41,6 +41,7 @@
 
 #include "compositor-private.h"
 #include "meta-window-actor-private.h"
+#include "monitor-private.h"
 
 G_DEFINE_ABSTRACT_TYPE (MetaPlugin, meta_plugin, G_TYPE_OBJECT);
 
@@ -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);
+}

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

src/compositor/meta-shaped-texture.c

@@ -33,10 +33,9 @@
 #include <meta/util.h>
 #include "meta-texture-tower.h"
 
-#ifdef HAVE_WAYLAND
+#include "meta-shaped-texture-private.h"
 #include "meta-wayland-private.h"
 #include <cogl/cogl-wayland-server.h>
-#endif
 
 #include <clutter/clutter.h>
 #include <cogl/cogl.h>
@@ -64,9 +63,7 @@ static gboolean meta_shaped_texture_get_paint_volume (ClutterActor *self, Clutte
 typedef enum _MetaShapedTextureType
 {
   META_SHAPED_TEXTURE_TYPE_X11_PIXMAP,
-#ifdef HAVE_WAYLAND
   META_SHAPED_TEXTURE_TYPE_WAYLAND_SURFACE,
-#endif
 } MetaShapedTextureType;
 
 
@@ -86,11 +83,9 @@ struct _MetaShapedTexturePrivate
     struct {
       Pixmap pixmap;
     } x11;
-#ifdef HAVE_WAYLAND
     struct {
       MetaWaylandSurface *surface;
     } wayland;
-#endif
   };
 
   CoglTexture *texture;
@@ -462,7 +457,6 @@ meta_shaped_texture_get_paint_volume (ClutterActor *self,
   return clutter_paint_volume_set_from_allocation (volume, self);
 }
 
-#ifdef HAVE_WAYLAND
 ClutterActor *
 meta_shaped_texture_new_with_wayland_surface (MetaWaylandSurface *surface)
 {
@@ -498,7 +492,6 @@ meta_shaped_texture_get_wayland_surface (MetaShapedTexture *stex)
   MetaShapedTexturePrivate *priv = stex->priv;
   return priv->wayland.surface;
 }
-#endif /* HAVE_WAYLAND */
 
 ClutterActor *
 meta_shaped_texture_new_with_xwindow (Window xwindow)
@@ -548,7 +541,6 @@ meta_shaped_texture_set_mask_texture (MetaShapedTexture *stex,
   clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
 }
 
-#ifdef HAVE_WAYLAND
 static void
 wayland_surface_update_area (MetaShapedTexture *stex,
                              int                x,
@@ -608,7 +600,6 @@ wayland_surface_update_area (MetaShapedTexture *stex,
         }
     }
 }
-#endif /* HAVE_WAYLAND */
 
 static void
 queue_damage_redraw_with_clip (MetaShapedTexture *stex,
@@ -678,11 +669,9 @@ meta_shaped_texture_update_area (MetaShapedTexture *stex,
       cogl_texture_pixmap_x11_update_area (COGL_TEXTURE_PIXMAP_X11 (priv->texture),
                                            x, y, width, height);
       break;
-#ifdef HAVE_WAYLAND
     case META_SHAPED_TEXTURE_TYPE_WAYLAND_SURFACE:
       wayland_surface_update_area (stex, x, y, width, height);
       break;
-#endif
     }
 
   meta_texture_tower_update_area (priv->paint_tower, x, y, width, height);
@@ -726,7 +715,6 @@ meta_shaped_texture_set_pixmap (MetaShapedTexture *stex,
                                          COGL_TEXTURE (priv->texture));
 }
 
-#ifdef HAVE_WAYLAND
 void
 meta_shaped_texture_attach_wayland_buffer (MetaShapedTexture  *stex,
                                            MetaWaylandBuffer  *buffer)
@@ -772,7 +760,6 @@ meta_shaped_texture_attach_wayland_buffer (MetaShapedTexture  *stex,
     meta_texture_tower_set_base_texture (priv->paint_tower,
                                          COGL_TEXTURE (priv->texture));
 }
-#endif /* HAVE_WAYLAND */
 
 /**
  * meta_shaped_texture_get_texture:

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

@@ -5,10 +5,8 @@
 
 #include <config.h>
 
-#ifdef HAVE_WAYLAND
 #include <wayland-server.h>
 #include <meta-wayland-private.h>
-#endif
 
 #include <X11/extensions/Xdamage.h>
 #include <meta/compositor-mutter.h>
@@ -32,7 +30,6 @@ void meta_window_actor_unmaximize (MetaWindowActor *self,
 void meta_window_actor_process_x11_damage (MetaWindowActor    *self,
                                            XDamageNotifyEvent *event);
 
-#ifdef HAVE_WAYLAND
 void meta_window_actor_process_wayland_damage (MetaWindowActor *self,
                                                int              x,
                                                int              y,
@@ -42,7 +39,6 @@ void meta_window_actor_set_wayland_surface    (MetaWindowActor    *self,
                                                MetaWaylandSurface *surface);
 void meta_window_actor_attach_wayland_buffer  (MetaWindowActor   *self,
                                                MetaWaylandBuffer *buffer);
-#endif
 
 void meta_window_actor_pre_paint      (MetaWindowActor    *self);
 void meta_window_actor_post_paint     (MetaWindowActor    *self);

src/compositor/meta-window-actor.c

@@ -28,13 +28,12 @@
 #include "xprops.h"
 
 #include "compositor-private.h"
+#include "meta-shaped-texture-private.h"
 #include "meta-shadow-factory-private.h"
 #include "meta-window-actor-private.h"
 #include "meta-texture-rectangle.h"
 #include "region-utils.h"
-#ifdef HAVE_WAYLAND
 #include "meta-wayland-private.h"
-#endif
 
 enum {
   POSITION_CHANGED,
@@ -371,11 +370,9 @@ meta_window_actor_constructed (GObject *object)
 
   if (!priv->actor)
     {
-#ifdef HAVE_WAYLAND
       if (meta_is_wayland_compositor ())
         priv->actor = meta_shaped_texture_new_with_wayland_surface (window->surface);
       else
-#endif
         priv->actor = meta_shaped_texture_new_with_xwindow (xwindow);
 
       clutter_actor_add_child (CLUTTER_ACTOR (self), priv->actor);
@@ -392,10 +389,10 @@ meta_window_actor_constructed (GObject *object)
        */
       g_object_ref (priv->actor);
 
-      g_signal_connect (window, "notify::decorated",
-                        G_CALLBACK (window_decorated_notify), self);
-      g_signal_connect (window, "notify::appears-focused",
-                        G_CALLBACK (window_appears_focused_notify), self);
+      g_signal_connect_object (window, "notify::decorated",
+                               G_CALLBACK (window_decorated_notify), self, 0);
+      g_signal_connect_object (window, "notify::appears-focused",
+                               G_CALLBACK (window_appears_focused_notify), self, 0);
     }
   else
     {
@@ -1320,10 +1317,8 @@ meta_window_actor_destroy (MetaWindowActor *self)
 
   priv = self->priv;
 
-#ifdef HAVE_WAYLAND
   if (meta_is_wayland_compositor ())
     meta_shaped_texture_set_wayland_surface (META_SHAPED_TEXTURE (priv->actor), NULL);
-#endif
 
   window = priv->window;
   window_type = meta_window_get_window_type (window);
@@ -1567,14 +1562,12 @@ meta_window_actor_new (MetaWindow *window)
 
       meta_verbose ("add window: Meta %p, xwin 0x%x\n", window, (guint)top_window);
     }
-#ifdef HAVE_WAYLAND
   else
     {
       meta_verbose ("add window: Meta %p, wayland surface %p\n",
                     window, window->surface);
       top_window = None;
     }
-#endif
 
   self = g_object_new (META_TYPE_WINDOW_ACTOR,
                        "meta-window",         window,
@@ -1583,13 +1576,13 @@ meta_window_actor_new (MetaWindow *window)
                        NULL);
 
   priv = self->priv;
+  priv->mapped = meta_window_toplevel_is_mapped (priv->window);
 
   if (!meta_is_wayland_compositor ())
     {
       priv->last_width = -1;
       priv->last_height = -1;
 
-      priv->mapped = meta_window_toplevel_is_mapped (priv->window);
       if (priv->mapped)
         meta_window_actor_queue_create_x11_pixmap (self);
 
@@ -2022,7 +2015,6 @@ meta_window_actor_process_x11_damage (MetaWindowActor    *self,
   priv->repaint_scheduled = TRUE;
 }
 
-#ifdef HAVE_WAYLAND
 void
 meta_window_actor_process_wayland_damage (MetaWindowActor *self,
                                           int x,
@@ -2039,7 +2031,6 @@ meta_window_actor_process_wayland_damage (MetaWindowActor *self,
                                    x, y, width, height);
   priv->repaint_scheduled = TRUE;
 }
-#endif
 
 void
 meta_window_actor_sync_visibility (MetaWindowActor *self)
@@ -2429,7 +2420,6 @@ meta_window_actor_update_shape (MetaWindowActor *self)
   clutter_actor_queue_redraw (priv->actor);
 }
 
-#ifdef HAVE_WAYLAND
 static void
 maybe_emit_size_changed (MetaWindowActor *self,
                          MetaWaylandBuffer *new_buffer)
@@ -2490,7 +2480,6 @@ meta_window_actor_attach_wayland_buffer (MetaWindowActor *self,
 
   maybe_emit_size_changed (self, buffer);
 }
-#endif /* HAVE_WAYLAND */
 
 static void
 meta_window_actor_handle_updates (MetaWindowActor *self)

src/compositor/meta-window-group.c

@@ -187,7 +187,7 @@ meta_window_group_paint (ClutterActor *actor)
       if (META_IS_WINDOW_ACTOR (child))
         {
           MetaWindow *meta_window;
-          MetaWindowActor *window_actor = child;
+          MetaWindowActor *window_actor = META_WINDOW_ACTOR (child);
           int x, y;
 
           if (!meta_actor_is_untransformed (CLUTTER_ACTOR (window_actor), &x, &y))

src/compositor/plugins/default.c

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

src/core/display-private.h

@@ -86,6 +86,14 @@ typedef enum {
   META_TILE_MAXIMIZED
 } MetaTileMode;
 
+typedef enum {
+  META_FOCUS_NONE = 0,
+  META_FOCUS_X_CLIENT = 1,
+  META_FOCUS_WAYLAND_CLIENT = 2,
+  META_FOCUS_NO_FOCUS_WINDOW = 3,
+  META_FOCUS_STAGE = 4
+} MetaFocusType;
+
 struct _MetaDisplay
 {
   GObject parent_instance;
@@ -117,6 +125,7 @@ struct _MetaDisplay
    * like the no_focus_window or the stage X window. */
   Window focus_xwindow;
   gulong focus_serial;
+  MetaFocusType focus_type;
 
   /* last timestamp passed to XSetInputFocus */
   guint32 last_focus_time;
@@ -475,9 +484,10 @@ gboolean meta_display_process_barrier_event (MetaDisplay    *display,
                                              XIBarrierEvent *event);
 #endif /* HAVE_XI23 */
 
-void meta_display_set_input_focus_xwindow (MetaDisplay *display,
-                                           MetaScreen  *screen,
-                                           Window       window,
-                                           guint32      timestamp);
+void meta_display_set_input_focus_xwindow (MetaDisplay   *display,
+                                           MetaScreen    *screen,
+                                           MetaFocusType  type,
+                                           Window         window,
+                                           guint32        timestamp);
 
 #endif

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>
@@ -990,8 +991,10 @@ 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;
@@ -1897,18 +1900,18 @@ get_input_event (MetaDisplay *display,
 }
 
 static void
-update_focus_window (MetaDisplay *display,
-                     MetaWindow  *window,
-                     Window       xwindow,
-                     gulong       serial)
+update_focus_window (MetaDisplay   *display,
+                     MetaFocusType  type,
+                     MetaWindow    *window,
+                     Window         xwindow,
+                     gulong         serial)
 {
-#ifdef HAVE_WAYLAND
   MetaWaylandCompositor *compositor;
-#endif
 
   display->focus_serial = serial;
 
   if (display->focus_xwindow == xwindow &&
+      display->focus_type == type &&
       display->focus_window == window)
     return;
 
@@ -1931,6 +1934,7 @@ update_focus_window (MetaDisplay *display,
       meta_window_set_focused_internal (previous, FALSE);
     }
 
+  display->focus_type = type;
   display->focus_window = window;
   display->focus_xwindow = xwindow;
 
@@ -1943,19 +1947,18 @@ update_focus_window (MetaDisplay *display,
   else
     meta_topic (META_DEBUG_FOCUS, "* Focus --> NULL with serial %lu\n", serial);
 
-#ifdef HAVE_WAYLAND
   if (meta_is_wayland_compositor ())
     {
       compositor = meta_wayland_compositor_get_default ();
 
-      if (meta_display_xwindow_is_a_no_focus_window (display, xwindow))
+      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");
      }
-#endif
 
   g_object_notify (G_OBJECT (display), "focus-window");
   meta_display_update_active_window_hint (display);
@@ -1991,11 +1994,12 @@ timestamp_too_old (MetaDisplay *display,
 }
 
 static void
-request_xserver_input_focus_change (MetaDisplay *display,
-                                    MetaScreen  *screen,
-                                    MetaWindow  *meta_window,
-                                    Window       xwindow,
-                                    guint32      timestamp)
+request_xserver_input_focus_change (MetaDisplay   *display,
+                                    MetaScreen    *screen,
+                                    MetaFocusType  type,
+                                    MetaWindow    *meta_window,
+                                    Window         xwindow,
+                                    guint32        timestamp)
 {
   gulong serial;
 
@@ -2028,6 +2032,7 @@ request_xserver_input_focus_change (MetaDisplay *display,
   meta_display_ungrab (display);
 
   update_focus_window (display,
+                       type,
                        meta_window,
                        xwindow,
                        serial);
@@ -2048,9 +2053,12 @@ handle_window_focus_event (MetaDisplay  *display,
                            unsigned long serial)
 {
   MetaWindow *focus_window;
+  MetaFocusType type;
 #ifdef WITH_VERBOSE_MODE
   const char *window_type;
 
+  type = META_FOCUS_NONE;
+
   /* Note the event can be on either the window or the frame,
    * we focus the frame for shaded windows
    */
@@ -2062,14 +2070,26 @@ handle_window_focus_event (MetaDisplay  *display,
         window_type = "frame window";
       else
         window_type = "unknown client window";
+
+      if (window->client_type == META_WINDOW_CLIENT_TYPE_WAYLAND)
+        type = META_FOCUS_WAYLAND_CLIENT;
+      else
+        type = META_FOCUS_X_CLIENT;
     }
   else if (meta_display_xwindow_is_a_no_focus_window (display, event->event))
-    window_type = "no_focus_window";
+    {
+      window_type = "no_focus_window";
+      type = META_FOCUS_NO_FOCUS_WINDOW;
+    }
   else if (meta_display_screen_for_root (display, event->event))
     window_type = "root window";
   else
     window_type = "unknown window";
 
+  /* Don't change type if we don't know the new window */
+  if (type == META_FOCUS_NONE)
+    type = display->focus_type;
+
   meta_topic (META_DEBUG_FOCUS,
               "Focus %s event received on %s 0x%lx (%s) "
               "mode %s detail %s serial %lu\n",
@@ -2147,6 +2167,7 @@ handle_window_focus_event (MetaDisplay  *display,
   if (display->server_focus_serial > display->focus_serial)
     {
       update_focus_window (display,
+                           type,
                            focus_window,
                            focus_window ? focus_window->xwindow : None,
                            display->server_focus_serial);
@@ -2177,6 +2198,8 @@ meta_display_handle_event (MetaDisplay *display,
   gboolean bypass_compositor;
   gboolean filter_out_event;
   XIEvent *input_event;
+  MetaMonitorManager *monitor;
+  MetaScreen *screen;
 
 #ifdef WITH_VERBOSE_MODE
   if (dump_events)
@@ -2186,6 +2209,14 @@ meta_display_handle_event (MetaDisplay *display,
 #ifdef HAVE_STARTUP_NOTIFICATION
   sn_display_process_event (display->sn_display, event);
 #endif
+
+  /* Intercept XRandR events early and don't attempt any
+     processing for them. We still let them through to Gdk though,
+     so it can update its own internal state.
+  */
+  monitor = meta_monitor_manager_get ();
+  if (meta_monitor_manager_handle_xevent (monitor, event))
+    return FALSE;
   
   bypass_compositor = FALSE;
   filter_out_event = FALSE;
@@ -2199,11 +2230,19 @@ meta_display_handle_event (MetaDisplay *display,
       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);
@@ -2276,6 +2315,8 @@ meta_display_handle_event (MetaDisplay *display,
           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 */
 
@@ -2878,32 +2919,10 @@ meta_display_handle_event (MetaDisplay *display,
                 meta_stack_tracker_configure_event (screen->stack_tracker,
                                                     &event->xconfigure);
             }
+
           if (window && window->override_redirect)
             meta_window_configure_notify (window, &event->xconfigure);
-          else
-            /* Handle screen resize */
-            {
-              MetaScreen *screen;
 
-              screen = meta_display_screen_for_root (display,
-                                                     event->xconfigure.window);
-
-              if (screen != NULL)
-                {
-#ifdef HAVE_RANDR
-                  /* do the resize the official way */
-                  XRRUpdateConfiguration (event);
-#else
-                  /* poke around in Xlib */
-                  screen->xscreen->width   = event->xconfigure.width;
-                  screen->xscreen->height  = event->xconfigure.height;
-#endif
-	      
-                  meta_screen_resize (screen, 
-                                      event->xconfigure.width,
-                                      event->xconfigure.height);
-                }
-            }
           break;
         case ConfigureRequest:
           /* This comment and code is found in both twm and fvwm */
@@ -3210,12 +3229,10 @@ event_callback (XEvent  *event,
      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 */
-#ifdef HAVE_WAYLAND
   if (meta_is_wayland_compositor () &&
       event->type == GenericEvent &&
       event->xcookie.evtype == XI_Motion)
     return FALSE;
-#endif
 
   return meta_display_handle_event (display, event);
 }
@@ -5871,6 +5888,8 @@ meta_display_set_input_focus_window (MetaDisplay *display,
 {
   request_xserver_input_focus_change (display,
                                       window->screen,
+                                      window->client_type == META_WINDOW_CLIENT_TYPE_WAYLAND ?
+                                      META_FOCUS_WAYLAND_CLIENT : META_FOCUS_X_CLIENT,
                                       window,
                                       focus_frame ? window->frame->xwindow : window->xwindow,
                                       timestamp);
@@ -5912,13 +5931,15 @@ meta_display_request_take_focus (MetaDisplay *display,
 }
 
 void
-meta_display_set_input_focus_xwindow (MetaDisplay *display,
-                                      MetaScreen  *screen,
-                                      Window       window,
-                                      guint32      timestamp)
+meta_display_set_input_focus_xwindow (MetaDisplay   *display,
+                                      MetaScreen    *screen,
+                                      MetaFocusType  type,
+                                      Window         window,
+                                      guint32        timestamp)
 {
   request_xserver_input_focus_change (display,
                                       screen,
+                                      type,
                                       NULL,
                                       window,
                                       timestamp);
@@ -5931,6 +5952,7 @@ meta_display_focus_the_no_focus_window (MetaDisplay *display,
 {
   request_xserver_input_focus_change (display,
                                       screen,
+                                      META_FOCUS_NO_FOCUS_WINDOW,
                                       NULL,
                                       screen->no_focus_window,
                                       timestamp);

src/core/edid-parse.c

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

src/core/edid.h

@@ -0,0 +1,195 @@
+/* edid.h
+ *
+ * Copyright 2007, 2008, Red Hat, Inc.
+ * 
+ * This file is part of the Gnome Library.
+ * 
+ * The Gnome Library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * The Gnome Library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with the Gnome Library; see the file COPYING.LIB.  If not,
+ * write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ * 
+ * Author: Soren Sandmann <sandmann@redhat.com>
+ */
+
+#ifndef EDID_H
+#define EDID_H
+
+typedef unsigned char uchar;
+typedef struct MonitorInfo MonitorInfo;
+typedef struct Timing Timing;
+typedef struct DetailedTiming DetailedTiming;
+
+typedef enum
+{
+  UNDEFINED,
+  DVI,
+  HDMI_A,
+  HDMI_B,
+  MDDI,
+  DISPLAY_PORT
+} Interface;
+
+typedef enum
+{
+  UNDEFINED_COLOR,
+  MONOCHROME,
+  RGB,
+  OTHER_COLOR
+} ColorType;
+
+typedef enum
+{
+  NO_STEREO,
+  FIELD_RIGHT,
+  FIELD_LEFT,
+  TWO_WAY_RIGHT_ON_EVEN,
+  TWO_WAY_LEFT_ON_EVEN,
+  FOUR_WAY_INTERLEAVED,
+  SIDE_BY_SIDE
+} StereoType;
+
+struct Timing
+{
+  int width;
+  int height;
+  int frequency;
+};
+
+struct DetailedTiming
+{
+  int		pixel_clock;
+  int		h_addr;
+  int		h_blank;
+  int		h_sync;
+  int		h_front_porch;
+  int		v_addr;
+  int		v_blank;
+  int		v_sync;
+  int		v_front_porch;
+  int		width_mm;
+  int		height_mm;
+  int		right_border;
+  int		top_border;
+  int		interlaced;
+  StereoType	stereo;
+
+  int		digital_sync;
+  union
+  {
+    struct
+    {
+      int bipolar;
+      int serrations;
+      int sync_on_green;
+    } analog;
+
+    struct
+    {
+      int composite;
+      int serrations;
+      int negative_vsync;
+      int negative_hsync;
+    } digital;
+  } connector;
+};
+
+struct MonitorInfo
+{
+  int		checksum;
+  char		manufacturer_code[4];
+  int		product_code;
+  unsigned int	serial_number;
+
+  int		production_week;	/* -1 if not specified */
+  int		production_year;	/* -1 if not specified */
+  int		model_year;		/* -1 if not specified */
+
+  int		major_version;
+  int		minor_version;
+
+  int		is_digital;
+
+  union
+  {
+    struct
+    {
+      int	bits_per_primary;
+      Interface	interface;
+      int	rgb444;
+      int	ycrcb444;
+      int	ycrcb422;
+    } digital;
+
+    struct
+    {
+      double	video_signal_level;
+      double	sync_signal_level;
+      double	total_signal_level;
+
+      int	blank_to_black;
+
+      int	separate_hv_sync;
+      int	composite_sync_on_h;
+      int	composite_sync_on_green;
+      int	serration_on_vsync;
+      ColorType	color_type;
+    } analog;
+  } connector;
+
+  int		width_mm;		/* -1 if not specified */
+  int		height_mm;		/* -1 if not specified */
+  double	aspect_ratio;		/* -1.0 if not specififed */
+
+  double	gamma;			/* -1.0 if not specified */
+
+  int		standby;
+  int		suspend;
+  int		active_off;
+
+  int		srgb_is_standard;
+  int		preferred_timing_includes_native;
+  int		continuous_frequency;
+
+  double	red_x;
+  double	red_y;
+  double	green_x;
+  double	green_y;
+  double	blue_x;
+  double	blue_y;
+  double	white_x;
+  double	white_y;
+
+  Timing	established[24];	/* Terminated by 0x0x0 */
+  Timing	standard[8];
+
+  int		n_detailed_timings;
+  DetailedTiming detailed_timings[4];	/* If monitor has a preferred
+                                         * mode, it is the first one
+                                         * (whether it has, is
+                                         * determined by the 
+                                         * preferred_timing_includes
+                                         * bit.
+                                         */
+
+  /* Optional product description */
+  char		dsc_serial_number[14];
+  char		dsc_product_name[14];
+  char		dsc_string[14];		/* Unspecified ASCII data */
+};
+
+MonitorInfo *decode_edid (const uchar *data);
+char *make_display_name (const MonitorInfo *info);
+char *make_display_size_string (int width_mm, int height_mm);
+
+#endif

src/core/keybindings.c

@@ -53,8 +53,13 @@
 #include <X11/XKBlib.h>
 #endif
 
+#ifdef HAVE_WAYLAND
+#include "meta-wayland-private.h"
+#endif
+
 #define SCHEMA_COMMON_KEYBINDINGS "org.gnome.desktop.wm.keybindings"
 #define SCHEMA_MUTTER_KEYBINDINGS "org.gnome.mutter.keybindings"
+#define SCHEMA_MUTTER_WAYLAND_KEYBINDINGS "org.gnome.mutter.wayland.keybindings"
 
 static gboolean add_builtin_keybinding (MetaDisplay          *display,
                                         const char           *name,
@@ -1965,6 +1970,23 @@ process_overlay_key (MetaDisplay *display,
             return TRUE;
           meta_display_overlay_key_activate (display);
         }
+      else
+        {
+          /* In some rare race condition, mutter might not receive the Super_L
+           * KeyRelease event because:
+           * - the compositor might end the modal mode and call XIUngrabDevice
+           *   while the key is still down
+           * - passive grabs are only activated on KeyPress and not KeyRelease.
+           *
+           * In this case, display->overlay_key_only_pressed might be wrong.
+           * Mutter still ought to acknowledge events, otherwise the X server
+           * will not send the next events.
+           *
+           * https://bugzilla.gnome.org/show_bug.cgi?id=666101
+           */
+          XIAllowEvents (display->xdisplay, event->deviceid,
+                         XIAsyncDevice, event->time);
+        }
 
       return TRUE;
     }
@@ -4081,6 +4103,40 @@ handle_set_spew_mark (MetaDisplay    *display,
   meta_verbose ("-- MARK MARK MARK MARK --\n");
 }
 
+#ifdef HAVE_WAYLAND
+static void
+handle_switch_vt (MetaDisplay    *display,
+                  MetaScreen     *screen,
+                  MetaWindow     *window,
+                  XIDeviceEvent  *event,
+                  MetaKeyBinding *binding,
+                  gpointer        dummy)
+{
+    gint vt = binding->handler->data;
+    MetaWaylandCompositor *compositor;
+    MetaLauncher *launcher;
+
+    compositor = meta_wayland_compositor_get_default ();
+    launcher = meta_wayland_compositor_get_launcher (compositor);
+
+    if (launcher)
+      {
+        GError *error;
+
+        error = NULL;
+        if (!meta_launcher_activate_vt (launcher, vt, &error))
+          {
+            g_warning ("Failed to switch VT: %s", error->message);
+            g_error_free (error);
+          }
+      }
+    else
+      {
+        g_debug ("Ignoring VT switch keybinding, not running as VT manager");
+      }
+}
+#endif
+
 /**
  * meta_keybindings_set_custom_handler:
  * @name: The name of the keybinding to set
@@ -4144,6 +4200,7 @@ init_builtin_key_bindings (MetaDisplay *display)
                                META_KEY_BINDING_IS_REVERSED)
   GSettings *common_keybindings = g_settings_new (SCHEMA_COMMON_KEYBINDINGS);
   GSettings *mutter_keybindings = g_settings_new (SCHEMA_MUTTER_KEYBINDINGS);
+  GSettings *mutter_wayland_keybindings = g_settings_new (SCHEMA_MUTTER_WAYLAND_KEYBINDINGS);
 
   add_builtin_keybinding (display,
                           "switch-to-workspace-1",
@@ -4405,6 +4462,60 @@ init_builtin_key_bindings (MetaDisplay *display)
                           META_KEYBINDING_ACTION_SET_SPEW_MARK,
                           handle_set_spew_mark, 0);
 
+#ifdef HAVE_WAYLAND
+  if (meta_is_wayland_compositor ())
+    {
+      add_builtin_keybinding (display,
+                              "switch-to-session-1",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 1);
+
+      add_builtin_keybinding (display,
+                              "switch-to-session-2",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 2);
+
+      add_builtin_keybinding (display,
+                              "switch-to-session-3",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 3);
+
+      add_builtin_keybinding (display,
+                              "switch-to-session-4",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 4);
+
+      add_builtin_keybinding (display,
+                              "switch-to-session-5",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 5);
+
+      add_builtin_keybinding (display,
+                              "switch-to-session-6",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 6);
+
+      add_builtin_keybinding (display,
+                              "switch-to-session-7",
+                              mutter_wayland_keybindings,
+                              META_KEY_BINDING_NONE,
+                              META_KEYBINDING_ACTION_NONE,
+                              handle_switch_vt, 7);
+    }
+#endif
+
 #undef REVERSES_AND_REVERSED
 
   /************************ PER WINDOW BINDINGS ************************/

src/core/main.c

@@ -55,11 +55,10 @@
 #include "session.h"
 #include <meta/prefs.h>
 #include <meta/compositor.h>
-#ifdef HAVE_WAYLAND
 #include "meta-wayland-private.h"
-#endif
 
 #include <glib-object.h>
+#include <glib-unix.h>
 #include <gdk/gdkx.h>
 
 #include <stdlib.h>
@@ -350,73 +349,16 @@ meta_finalize (void)
     meta_display_close (display,
                         CurrentTime); /* I doubt correct timestamps matter here */
 
-#ifdef HAVE_WAYLAND
   if (meta_is_wayland_compositor ())
     meta_wayland_finalize ();
-#endif
-}
-
-static int signal_pipe_fds[2] = { -1, -1 };
-
-static void
-signal_handler (int signum)
-{
-  if (signal_pipe_fds[1] >= 0)
-    {
-      switch (signum)
-        {
-        case SIGTERM:
-          write (signal_pipe_fds[1], "T", 1);
-          break;
-        case SIGCHLD:
-          write (signal_pipe_fds[1], "C", 1);
-          break;
-        default:
-          break;
-        }
-    }
 }
 
 static gboolean
-on_signal (GIOChannel *source,
-           GIOCondition condition,
-           void *data)
+on_sigterm (gpointer user_data)
 {
-  char signal;
-  int count;
+  meta_quit (EXIT_SUCCESS);
 
-  for (;;)
-    {
-      count = read (signal_pipe_fds[0], &signal, 1);
-      if (count == EINTR)
-        continue;
-      if (count < 0)
-        {
-          const char *msg = strerror (errno);
-          g_warning ("Error handling signal: %s", msg);
-        }
-      if (count != 1)
-        {
-          g_warning ("Unexpectedly failed to read byte from signal pipe\n");
-          return TRUE;
-        }
-      break;
-    }
-  switch (signal)
-    {
-    case 'T': /* SIGTERM */
-      meta_quit (META_EXIT_SUCCESS);
-      break;
-#ifdef HAVE_WAYLAND
-    case 'C': /* SIGCHLD */
-      meta_wayland_handle_sig_child ();
-      break;
-#endif
-    default:
-      g_warning ("Spurious character '%c' read from signal pipe", signal);
-    }
-
-  return TRUE;
+  return G_SOURCE_REMOVE;
 }
 
 /**
@@ -430,7 +372,6 @@ meta_init (void)
 {
   struct sigaction act;
   sigset_t empty_mask;
-  GIOChannel *channel;
   
   sigemptyset (&empty_mask);
   act.sa_handler = SIG_IGN;
@@ -445,27 +386,7 @@ meta_init (void)
                 g_strerror (errno));
 #endif
 
-  if (pipe (signal_pipe_fds) != 0)
-    g_printerr ("Failed to create signal pipe: %s\n",
-                g_strerror (errno));
-
-  channel = g_io_channel_unix_new (signal_pipe_fds[0]);
-  g_io_channel_set_flags (channel, G_IO_FLAG_NONBLOCK, NULL);
-  g_io_add_watch (channel, G_IO_IN, (GIOFunc) on_signal, NULL);
-  g_io_channel_set_close_on_unref (channel, TRUE);
-  g_io_channel_unref (channel);
-
-  act.sa_handler = &signal_handler;
-  if (sigaction (SIGTERM, &act, NULL) < 0)
-    g_printerr ("Failed to register SIGTERM handler: %s\n",
-		g_strerror (errno));
-
-  if (meta_is_wayland_compositor ())
-    {
-      if (sigaction (SIGCHLD, &act, NULL) < 0)
-        g_printerr ("Failed to register SIGCHLD handler: %s\n",
-                    g_strerror (errno));
-    }
+  g_unix_signal_add (SIGTERM, on_sigterm, NULL);
 
   if (g_getenv ("MUTTER_VERBOSE"))
     meta_set_verbose (TRUE);
@@ -483,7 +404,6 @@ meta_init (void)
   g_irepository_prepend_search_path (MUTTER_PKGLIBDIR);
 #endif
 
-#ifdef HAVE_WAYLAND
   if (meta_is_wayland_compositor ())
     {
       /* NB: When running as a hybrid wayland compositor we run our own headless X
@@ -491,7 +411,6 @@ meta_init (void)
       meta_wayland_init ();
     }
   else
-#endif
     meta_select_display (opt_display_name);
 
   meta_set_syncing (opt_sync || (g_getenv ("MUTTER_SYNC") != NULL));

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

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);
+}

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);

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);
+}
+

src/core/meta-xrandr-shared.h

@@ -0,0 +1,40 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/* 
+ * Copyright (C) 2013 Red Hat Inc.
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+/* This file is shared between mutter (src/core/meta-xrandr-shared.h)
+   and gnome-desktop (libgnome-desktop/meta-xrandr-shared.h).
+
+   The canonical place for all changes is mutter.
+
+   There should be no includes in this file.
+*/
+
+#ifndef META_XRANDR_SHARED_H
+#define META_XRANDR_SHARED_H
+
+typedef enum {
+  META_POWER_SAVE_UNKNOWN = -1,
+  META_POWER_SAVE_ON = 0,
+  META_POWER_SAVE_STANDBY,
+  META_POWER_SAVE_SUSPEND,
+  META_POWER_SAVE_OFF,
+} MetaPowerSave;
+
+#endif

src/core/monitor-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

src/core/screen-private.h

@@ -38,17 +38,7 @@
 #include <X11/Xutil.h>
 #include "stack-tracker.h"
 #include "ui.h"
-
-typedef struct _MetaMonitorInfo MetaMonitorInfo;
-
-struct _MetaMonitorInfo
-{
-  int number;
-  MetaRectangle rect;
-  gboolean is_primary;
-  gboolean in_fullscreen;
-  XID output; /* The primary or first output for this crtc, None if no xrandr */
-};
+#include "monitor-private.h"
 
 typedef void (* MetaScreenWindowFunc) (MetaScreen *screen, MetaWindow *window,
                                        gpointer user_data);
@@ -93,6 +83,7 @@ struct _MetaScreen
   MetaStack *stack;
   MetaStackTracker *stack_tracker;
 
+  MetaCursorTracker *cursor_tracker;
   MetaCursor current_cursor;
 
   Window flash_window;
@@ -100,10 +91,11 @@ struct _MetaScreen
   Window wm_sn_selection_window;
   Atom wm_sn_atom;
   guint32 wm_sn_timestamp;
-  
+
   MetaMonitorInfo *monitor_infos;
-  int primary_monitor_index;
   int n_monitor_infos;
+  int primary_monitor_index;
+  gboolean has_xinerama_indices;
 
   /* Cache the current monitor */
   int last_monitor_index;
@@ -231,10 +223,6 @@ void meta_screen_calc_workspace_layout (MetaScreen          *screen,
                                         MetaWorkspaceLayout *layout);
 void meta_screen_free_workspace_layout (MetaWorkspaceLayout *layout);
 
-void meta_screen_resize (MetaScreen *screen,
-                         int         width,
-                         int         height);
-
 void     meta_screen_minimize_all_on_active_workspace_except (MetaScreen *screen,
                                                               MetaWindow *keep);
 
@@ -259,4 +247,12 @@ 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

src/core/screen.c

@@ -45,16 +45,11 @@
 #include <meta/compositor.h>
 #include "mutter-enum-types.h"
 #include "core.h"
-#ifdef HAVE_WAYLAND
 #include "meta-wayland-private.h"
-#endif
+#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>
@@ -79,6 +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,
@@ -353,250 +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
@@ -674,9 +515,7 @@ meta_screen_new (MetaDisplay *display,
   char buf[128];
   guint32 manager_timestamp;
   gulong current_workspace;
-#ifdef HAVE_WAYLAND
-  MetaWaylandCompositor *compositor;
-#endif
+  MetaMonitorManager *manager;
   
   replace_current_wm = meta_get_replace_current_wm ();
   
@@ -835,20 +674,17 @@ meta_screen_new (MetaDisplay *display,
   screen->xscreen = ScreenOfDisplay (xdisplay, number);
   screen->xroot = xroot;
   screen->rect.x = screen->rect.y = 0;
-  
-#ifdef HAVE_WAYLAND
-  if (meta_is_wayland_compositor ())
-    {
-      compositor = meta_wayland_compositor_get_default ();
-      screen->rect.width = clutter_actor_get_width (compositor->stage);
-      screen->rect.height = clutter_actor_get_height (compositor->stage);
-    }
-  else
-#endif
-    {
-      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);
@@ -874,12 +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 */  
@@ -963,7 +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;
 }
 
@@ -1635,29 +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
@@ -3022,19 +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);
@@ -3046,8 +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,
@@ -3057,7 +2875,8 @@ meta_screen_resize (MetaScreen *screen,
 
   if (screen->display->compositor)
     meta_compositor_sync_screen_size (screen->display->compositor,
-				      screen, width, height);
+				      screen,
+                                      screen->rect.width, screen->rect.height);
 
   /* Queue a resize on all the windows */
   meta_screen_foreach_window (screen, meta_screen_resize_func, 0);
@@ -3073,7 +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);
@@ -3869,3 +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;
+}

src/core/util.c

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

src/core/window-private.h

@@ -44,9 +44,7 @@
 #include <X11/Xutil.h>
 #include <cairo.h>
 #include <gdk-pixbuf/gdk-pixbuf.h>
-#ifdef HAVE_WAYLAND
 #include "meta-wayland-private.h"
-#endif
 
 /* XXX: We should find a nicer approach to deal with the
  * circular dependency we have with the current headers
@@ -181,7 +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;

src/core/window.c

@@ -62,9 +62,7 @@
 
 #include <X11/extensions/Xcomposite.h>
 
-#ifdef HAVE_WAYLAND
 #include "meta-wayland-private.h"
-#endif
 
 /* Windows that unmaximize to a size bigger than that fraction of the workarea
  * will be scaled down to that size (while maintaining aspect ratio).
@@ -853,9 +851,7 @@ meta_window_new_shared (MetaDisplay         *display,
   window->dialog_pid = -1;
 
   window->client_type = client_type;
-#ifdef HAVE_WAYLAND
   window->surface = surface;
-#endif
   window->xwindow = xwindow;
 
   /* this is in window->screen->display, but that's too annoying to
@@ -1375,7 +1371,6 @@ display_notify_window (MetaDisplay *display, MetaWindow *window)
     g_signal_emit_by_name (window->display, "window-marked-urgent", window);
 }
 
-#ifdef HAVE_WAYLAND
 MetaWindow *
 meta_window_new_for_wayland (MetaDisplay        *display,
                              int                 width,
@@ -1447,7 +1442,6 @@ meta_window_new_for_wayland (MetaDisplay        *display,
 
   return window;
 }
-#endif
 
 MetaWindow*
 meta_window_new_with_attrs (MetaDisplay       *display,
@@ -2107,10 +2101,8 @@ meta_window_unmanage (MetaWindow  *window,
       meta_error_trap_pop (window->display);
     }
 
-#ifdef HAVE_WAYLAND
   if (window->surface)
     meta_wayland_surface_free (window->surface);
-#endif
 
   meta_prefs_remove_listener (prefs_changed_callback, window);
 
@@ -2289,10 +2281,14 @@ set_net_wm_state (MetaWindow *window)
 
   if (window->fullscreen)
     {
-      data[0] = window->fullscreen_monitors[0];
-      data[1] = window->fullscreen_monitors[1];
-      data[2] = window->fullscreen_monitors[2];
-      data[3] = window->fullscreen_monitors[3];
+      data[0] = meta_screen_monitor_index_to_xinerama_index (window->screen,
+                                                             window->fullscreen_monitors[0]);
+      data[1] = meta_screen_monitor_index_to_xinerama_index (window->screen,
+                                                             window->fullscreen_monitors[1]);
+      data[2] = meta_screen_monitor_index_to_xinerama_index (window->screen,
+                                                             window->fullscreen_monitors[2]);
+      data[3] = meta_screen_monitor_index_to_xinerama_index (window->screen,
+                                                             window->fullscreen_monitors[3]);
 
       meta_verbose ("Setting _NET_WM_FULLSCREEN_MONITORS\n");
       meta_error_trap_push (window->display);
@@ -4966,7 +4962,8 @@ meta_window_update_for_monitors_changed (MetaWindow *window)
     {
       MetaMonitorInfo *info = &window->screen->monitor_infos[i];
 
-      if (info->output == old->output)
+      if (info->output_id != 0 &&
+          info->output_id == old->output_id)
         {
           new = info;
           break;
@@ -6007,7 +6004,7 @@ meta_window_get_outer_rect (const MetaWindow *window,
 
       if (window->has_custom_frame_extents)
         {
-          GtkBorder *extents = &window->custom_frame_extents;
+          const GtkBorder *extents = &window->custom_frame_extents;
           rect->x += extents->left;
           rect->y += extents->top;
           rect->width -= extents->left + extents->right;
@@ -7311,10 +7308,14 @@ meta_window_client_message (MetaWindow *window,
       meta_verbose ("_NET_WM_FULLSCREEN_MONITORS request for window '%s'\n",
                     window->desc);
 
-      top = event->xclient.data.l[0];
-      bottom = event->xclient.data.l[1];
-      left = event->xclient.data.l[2];
-      right = event->xclient.data.l[3];
+      top = meta_screen_xinerama_index_to_monitor_index (window->screen,
+                                                         event->xclient.data.l[0]);
+      bottom = meta_screen_xinerama_index_to_monitor_index (window->screen,
+                                                            event->xclient.data.l[1]);
+      left = meta_screen_xinerama_index_to_monitor_index (window->screen,
+                                                          event->xclient.data.l[2]);
+      right = meta_screen_xinerama_index_to_monitor_index (window->screen,
+                                                           event->xclient.data.l[3]);
       /* source_indication = event->xclient.data.l[4]; */
 
       meta_window_update_fullscreen_monitors (window, top, bottom, left, right);
@@ -8567,10 +8568,13 @@ recalc_window_features (MetaWindow *window)
 
     case META_WINDOW_DIALOG:
     case META_WINDOW_MODAL_DIALOG:
-      /* only skip taskbar if we have a real transient parent */
+      /* only skip taskbar if we have a real transient parent
+         (and ignore the application hints) */
       if (window->xtransient_for != None &&
           window->xtransient_for != window->screen->xroot)
         window->skip_taskbar = TRUE;
+      else
+        window->skip_taskbar = FALSE;
       break;
 
     case META_WINDOW_NORMAL:

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>

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}

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}

src/meta/atomnames.h

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

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

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

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);
 

src/meta/meta-shaped-texture.h

@@ -29,11 +29,6 @@
 #include <clutter/clutter.h>
 #include <X11/Xlib.h>
 
-#ifdef HAVE_WAYLAND
-#include <wayland-server.h>
-#include "meta-wayland-private.h"
-#endif
-
 G_BEGIN_DECLS
 
 #define META_TYPE_SHAPED_TEXTURE            (meta_shaped_texture_get_type())
@@ -69,14 +64,6 @@ struct _MetaShapedTexture
 
 GType meta_shaped_texture_get_type (void) G_GNUC_CONST;
 
-ClutterActor *meta_shaped_texture_new_with_xwindow (Window xwindow);
-#ifdef HAVE_WAYLAND
-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);
-#endif
-
 void meta_shaped_texture_set_create_mipmaps (MetaShapedTexture *stex,
 					     gboolean           create_mipmaps);
 
@@ -86,13 +73,6 @@ void meta_shaped_texture_update_area (MetaShapedTexture *stex,
                                       int                width,
                                       int                height);
 
-void meta_shaped_texture_set_pixmap (MetaShapedTexture *stex,
-                                     Pixmap             pixmap);
-#ifdef HAVE_WAYLAND
-void meta_shaped_texture_attach_wayland_buffer (MetaShapedTexture  *stex,
-                                                MetaWaylandBuffer  *buffer);
-#endif
-
 CoglTexture * meta_shaped_texture_get_texture (MetaShapedTexture *stex);
 
 void meta_shaped_texture_set_mask_texture (MetaShapedTexture *stex,

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

src/meta/util.h

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

src/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}\"

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

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
-

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

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

src/ui/ui.c

@@ -56,6 +56,8 @@ struct _MetaUI
 void
 meta_ui_init (void)
 {
+  gdk_set_allowed_backends ("x11");
+
   if (!gtk_init_check (NULL, NULL))
     meta_fatal ("Unable to open X display %s\n", XDisplayName (NULL));
 }

src/wayland/meta-wayland-pointer.c

@@ -45,6 +45,8 @@
 
 #include "meta-wayland-pointer.h"
 
+#include <string.h>
+
 static MetaWaylandSeat *
 meta_wayland_pointer_get_seat (MetaWaylandPointer *pointer)
 {

src/wayland/meta-wayland-private.h

@@ -28,6 +28,8 @@
 #include <cairo.h>
 
 #include "window-private.h"
+#include "meta-weston-launch.h"
+#include <meta/meta-cursor-tracker.h>
 
 typedef struct _MetaWaylandCompositor MetaWaylandCompositor;
 
@@ -50,7 +52,9 @@ typedef struct
   union
   {
     struct wl_shm_buffer *shm_buffer;
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
     struct wl_buffer *legacy_buffer;
+G_GNUC_END_IGNORE_DEPRECATIONS;
   };
 
   int32_t width, height;
@@ -109,26 +113,6 @@ typedef struct
   struct wl_listener surface_destroy_listener;
 } MetaWaylandShellSurface;
 
-typedef struct
-{
-  guint32 flags;
-  int width;
-  int height;
-  int refresh;
-} MetaWaylandMode;
-
-typedef struct
-{
-  struct wl_object wayland_output;
-  int x;
-  int y;
-  int width_mm;
-  int height_mm;
-  /* XXX: with sliced stages we'd reference a CoglFramebuffer here. */
-
-  GList *modes;
-} MetaWaylandOutput;
-
 typedef struct
 {
   GSource source;
@@ -152,7 +136,7 @@ struct _MetaWaylandCompositor
   struct wl_event_loop *wayland_loop;
   GMainLoop *init_loop;
   ClutterActor *stage;
-  GList *outputs;
+  GHashTable *outputs;
   GSource *wayland_event_source;
   GList *surfaces;
   struct wl_list frame_callbacks;
@@ -165,6 +149,9 @@ struct _MetaWaylandCompositor
   struct wl_client *xwayland_client;
   struct wl_resource *xserver_resource;
 
+  MetaLauncher *launcher;
+  int drm_fd;
+
   MetaWaylandSeat *seat;
 
   /* This surface is only used to keep drag of the implicit grab when
@@ -335,6 +322,7 @@ struct _MetaWaylandSeat
 
   struct wl_display *display;
 
+  MetaCursorTracker *cursor_tracker;
   MetaWaylandSurface *sprite;
   int hotspot_x, hotspot_y;
   struct wl_listener sprite_destroy_listener;
@@ -349,13 +337,13 @@ void                    meta_wayland_finalize                   (void);
  * API after meta_wayland_init() has been called. */
 MetaWaylandCompositor  *meta_wayland_compositor_get_default     (void);
 
-void                    meta_wayland_handle_sig_child           (void);
-
 void                    meta_wayland_compositor_repick          (MetaWaylandCompositor *compositor);
 
 void                    meta_wayland_compositor_set_input_focus (MetaWaylandCompositor *compositor,
                                                                  MetaWindow            *window);
 
+MetaLauncher           *meta_wayland_compositor_get_launcher    (MetaWaylandCompositor *compositor);
+
 void                    meta_wayland_surface_free               (MetaWaylandSurface    *surface);
 
 #endif /* META_WAYLAND_PRIVATE_H */

src/wayland/meta-wayland-seat.c

@@ -35,7 +35,9 @@
 #include "meta-wayland-data-device.h"
 #include "meta-window-actor-private.h"
 #include "meta/meta-shaped-texture.h"
+#include "meta-shaped-texture-private.h"
 #include "meta-wayland-stage.h"
+#include "meta-cursor-tracker-private.h"
 
 #define DEFAULT_AXIS_STEP_DISTANCE wl_fixed_from_int (10)
 
@@ -73,10 +75,14 @@ transform_stage_point_fixed (MetaWaylandSurface *surface,
 static void
 pointer_unmap_sprite (MetaWaylandSeat *seat)
 {
-  if (seat->current_stage)
+  if (seat->cursor_tracker)
     {
-      MetaWaylandStage *stage = META_WAYLAND_STAGE (seat->current_stage);
-      meta_wayland_stage_set_invisible_cursor (stage);
+      meta_cursor_tracker_set_sprite (seat->cursor_tracker,
+				      NULL, 0, 0);
+
+      if (seat->current_stage)
+	meta_cursor_tracker_queue_redraw (seat->cursor_tracker,
+					  CLUTTER_ACTOR (seat->current_stage));
     }
 
   if (seat->sprite)
@@ -89,22 +95,29 @@ pointer_unmap_sprite (MetaWaylandSeat *seat)
 void
 meta_wayland_seat_update_sprite (MetaWaylandSeat *seat)
 {
+  ClutterBackend *backend;
+  CoglContext *context;
+  struct wl_resource *buffer;
+  CoglTexture2D *texture;
+
+  if (seat->cursor_tracker == NULL)
+    return;
+
+  backend = clutter_get_default_backend ();
+  context = clutter_backend_get_cogl_context (backend);
+  buffer = seat->sprite->buffer_ref.buffer->resource;
+  texture = cogl_wayland_texture_2d_new_from_buffer (context, buffer, NULL);
+
+  meta_cursor_tracker_set_sprite (seat->cursor_tracker,
+				  texture,
+				  seat->hotspot_x,
+				  seat->hotspot_y);
+
   if (seat->current_stage)
-    {
-      MetaWaylandStage *stage = META_WAYLAND_STAGE (seat->current_stage);
-      ClutterBackend *backend = clutter_get_default_backend ();
-      CoglContext *context = clutter_backend_get_cogl_context (backend);
-      struct wl_resource *buffer = seat->sprite->buffer_ref.buffer->resource;
-      CoglTexture2D *texture =
-        cogl_wayland_texture_2d_new_from_buffer (context, buffer, NULL);
+    meta_cursor_tracker_queue_redraw (seat->cursor_tracker,
+				      CLUTTER_ACTOR (seat->current_stage));
 
-      meta_wayland_stage_set_cursor_from_texture (stage,
-                                                  COGL_TEXTURE (texture),
-                                                  seat->hotspot_x,
-                                                  seat->hotspot_y);
-
-      cogl_object_unref (texture);
-    }
+  cogl_object_unref (texture);
 }
 
 static void
@@ -507,14 +520,14 @@ meta_wayland_seat_repick (MetaWaylandSeat *seat,
       surface = meta_shaped_texture_get_wayland_surface (shaped_texture);
     }
 
-  if (surface != pointer->current)
+  pointer->current = surface;
+  if (surface != pointer->focus)
     {
       const MetaWaylandPointerGrabInterface *interface =
         pointer->grab->interface;
       interface->focus (pointer->grab,
                         surface,
                         pointer->current_x, pointer->current_y);
-      pointer->current = surface;
     }
 
   if (pointer->grab->focus)

src/wayland/meta-wayland-stage.c

@@ -28,157 +28,34 @@
 #include "meta-wayland-stage.h"
 #include "meta/meta-window-actor.h"
 #include "meta/meta-shaped-texture.h"
-
-#define META_WAYLAND_DEFAULT_CURSOR_HOTSPOT_X 7
-#define META_WAYLAND_DEFAULT_CURSOR_HOTSPOT_Y 4
+#include "meta-cursor-tracker-private.h"
 
 G_DEFINE_TYPE (MetaWaylandStage, meta_wayland_stage, CLUTTER_TYPE_STAGE);
 
-static void
-meta_wayland_stage_finalize (GObject *object)
-{
-  MetaWaylandStage *self = (MetaWaylandStage *) object;
-
-  cogl_object_unref (self->default_cursor_pipeline);
-  cogl_object_unref (self->texture_cursor_pipeline);
-
-  G_OBJECT_CLASS (meta_wayland_stage_parent_class)->finalize (object);
-}
-
-static void
-get_cursor_draw_position (MetaWaylandStage *self,
-                          cairo_rectangle_int_t *rect)
-{
-  rect->x = self->cursor_x - self->cursor_hotspot_x;
-  rect->y = self->cursor_y - self->cursor_hotspot_y;
-  rect->width = self->cursor_width;
-  rect->height = self->cursor_height;
-}
-
-static void
-draw_cursor_pipeline (MetaWaylandStage *self,
-                      CoglPipeline *pipeline)
-{
-  cairo_rectangle_int_t rect;
-
-  get_cursor_draw_position (self, &rect);
-
-  cogl_framebuffer_draw_rectangle (cogl_get_draw_framebuffer (),
-                                   pipeline,
-                                   rect.x, rect.y,
-                                   rect.x + rect.width,
-                                   rect.y + rect.height);
-
-  self->has_last_cursor_position = TRUE;
-  self->last_cursor_position = rect;
-}
-
 static void
 meta_wayland_stage_paint (ClutterActor *actor)
 {
-  MetaWaylandStage *self = META_WAYLAND_STAGE (actor);
+  MetaWaylandCompositor *compositor;
 
   CLUTTER_ACTOR_CLASS (meta_wayland_stage_parent_class)->paint (actor);
 
-  /* Make sure the cursor is always painted on top of all of the other
-     actors */
-
-  switch (self->cursor_type)
-    {
-    case META_WAYLAND_STAGE_CURSOR_INVISIBLE:
-      break;
-
-    case META_WAYLAND_STAGE_CURSOR_DEFAULT:
-      draw_cursor_pipeline (self, self->default_cursor_pipeline);
-      break;
-
-    case META_WAYLAND_STAGE_CURSOR_TEXTURE:
-      draw_cursor_pipeline (self, self->texture_cursor_pipeline);
-      break;
-    }
-}
-
-static void
-update_cursor_position (MetaWaylandStage *self)
-{
-  cairo_rectangle_int_t rect;
-
-  if (self->has_last_cursor_position)
-    {
-      clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (self),
-                                            &self->last_cursor_position);
-      self->has_last_cursor_position = FALSE;
-    }
-
-  get_cursor_draw_position (self, &rect);
-  if (rect.width != 0 && rect.height != 0)
-    clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (self), &rect);
+  compositor = meta_wayland_compositor_get_default ();
+  if (compositor->seat->cursor_tracker)
+    meta_cursor_tracker_paint (compositor->seat->cursor_tracker);
 }
 
 static void
 meta_wayland_stage_class_init (MetaWaylandStageClass *klass)
 {
-  GObjectClass *gobject_class = (GObjectClass *) klass;
   ClutterActorClass *actor_class = (ClutterActorClass *) klass;
 
-  gobject_class->finalize = meta_wayland_stage_finalize;
-
   actor_class->paint = meta_wayland_stage_paint;
 }
 
-static void
-load_default_cursor_pipeline (MetaWaylandStage *self)
-{
-  CoglContext *context =
-    clutter_backend_get_cogl_context (clutter_get_default_backend ());
-  CoglTexture *texture;
-  CoglError *error = NULL;
-  char *filename;
-
-  filename = g_build_filename (MUTTER_DATADIR,
-                               "mutter/cursors/left_ptr.png",
-                               NULL);
-
-  texture = cogl_texture_new_from_file (filename,
-                                        COGL_TEXTURE_NONE,
-                                        COGL_PIXEL_FORMAT_ANY,
-                                        &error);
-
-  g_free (filename);
-
-  self->default_cursor_pipeline = cogl_pipeline_new (context);
-  cogl_pipeline_set_layer_filters (self->default_cursor_pipeline,
-                                   0, /* layer */
-                                   COGL_PIPELINE_FILTER_NEAREST,
-                                   COGL_PIPELINE_FILTER_NEAREST);
-
-  if (texture == NULL)
-    {
-      g_warning ("Failed to load default cursor: %s",
-                 error->message);
-      cogl_error_free (error);
-    }
-  else
-    {
-      self->default_cursor_width = cogl_texture_get_width (texture);
-      self->default_cursor_height = cogl_texture_get_height (texture);
-
-      cogl_pipeline_set_layer_texture (self->default_cursor_pipeline,
-                                       0, /* layer */
-                                       texture);
-      cogl_object_unref (texture);
-    }
-}
-
 static void
 meta_wayland_stage_init (MetaWaylandStage *self)
 {
-  load_default_cursor_pipeline (self);
-
-  self->texture_cursor_pipeline =
-    cogl_pipeline_copy (self->default_cursor_pipeline);
-
-  meta_wayland_stage_set_default_cursor (self);
+  clutter_stage_set_user_resizable (CLUTTER_STAGE (self), FALSE);
 }
 
 ClutterActor *
@@ -188,56 +65,3 @@ meta_wayland_stage_new (void)
                        "cursor-visible", FALSE,
                        NULL);
 }
-
-void
-meta_wayland_stage_set_cursor_position (MetaWaylandStage *self,
-                                        int               x,
-                                        int               y)
-{
-  self->cursor_x = x;
-  self->cursor_y = y;
-  update_cursor_position (self);
-}
-
-void
-meta_wayland_stage_set_cursor_from_texture (MetaWaylandStage *self,
-                                            CoglTexture      *texture,
-                                            int               hotspot_x,
-                                            int               hotspot_y)
-{
-  CoglPipeline *pipeline;
-
-  self->cursor_hotspot_x = hotspot_x;
-  self->cursor_hotspot_y = hotspot_y;
-  self->cursor_type = META_WAYLAND_STAGE_CURSOR_TEXTURE;
-
-  pipeline = cogl_pipeline_copy (self->texture_cursor_pipeline);
-  cogl_pipeline_set_layer_texture (pipeline, 0, texture);
-  cogl_object_unref (self->texture_cursor_pipeline);
-  self->texture_cursor_pipeline = pipeline;
-
-  self->cursor_width = cogl_texture_get_width (texture);
-  self->cursor_height = cogl_texture_get_height (texture);
-
-  update_cursor_position (self);
-}
-
-void
-meta_wayland_stage_set_invisible_cursor (MetaWaylandStage *self)
-{
-  self->cursor_type = META_WAYLAND_STAGE_CURSOR_INVISIBLE;
-  self->cursor_width = 0;
-  self->cursor_height = 0;
-  update_cursor_position (self);
-}
-
-void
-meta_wayland_stage_set_default_cursor (MetaWaylandStage *self)
-{
-  self->cursor_type = META_WAYLAND_STAGE_CURSOR_DEFAULT;
-  self->cursor_hotspot_x = META_WAYLAND_DEFAULT_CURSOR_HOTSPOT_X;
-  self->cursor_hotspot_y = META_WAYLAND_DEFAULT_CURSOR_HOTSPOT_Y;
-  self->cursor_width = self->default_cursor_width;
-  self->cursor_height = self->default_cursor_height;
-  update_cursor_position (self);
-}

src/wayland/meta-wayland-stage.h

@@ -59,53 +59,12 @@ struct _MetaWaylandStageClass
 struct _MetaWaylandStage
 {
   ClutterStage parent;
-
-  /* A pipeline containing the cursor texture that will be used when
-     the cursor is not over a surface */
-  CoglPipeline *default_cursor_pipeline;
-  int default_cursor_width;
-  int default_cursor_height;
-
-  CoglPipeline *texture_cursor_pipeline;
-
-  int cursor_x;
-  int cursor_y;
-  int cursor_width;
-  int cursor_height;
-  int cursor_hotspot_x;
-  int cursor_hotspot_y;
-
-  enum
-  {
-    /* No cursor will be drawn */
-    META_WAYLAND_STAGE_CURSOR_INVISIBLE,
-    /* The cursor will be drawn from our default cursor image */
-    META_WAYLAND_STAGE_CURSOR_DEFAULT,
-    /* The cursor will be drawn using a custom texture */
-    META_WAYLAND_STAGE_CURSOR_TEXTURE
-  } cursor_type;
-
-  gboolean has_last_cursor_position;
-  cairo_rectangle_int_t last_cursor_position;
 };
 
 GType             meta_wayland_stage_get_type                (void) G_GNUC_CONST;
 
 ClutterActor     *meta_wayland_stage_new                     (void);
 
-void              meta_wayland_stage_set_cursor_position     (MetaWaylandStage *stage,
-                                                              int               x,
-                                                              int               y);
-
-void              meta_wayland_stage_set_default_cursor      (MetaWaylandStage *self);
-
-void              meta_wayland_stage_set_cursor_from_texture (MetaWaylandStage *self,
-                                                              CoglTexture      *texture,
-                                                              int               hotspot_x,
-                                                              int               hotspot_y);
-
-void              meta_wayland_stage_set_invisible_cursor    (MetaWaylandStage *self);
-
 G_END_DECLS
 
 #endif /* META_WAYLAND_STAGE_H */

src/wayland/meta-wayland.c

@@ -35,8 +35,6 @@
 
 #include <wayland-server.h>
 
-#include "xserver-server-protocol.h"
-
 #include "meta-wayland-private.h"
 #include "meta-xwayland-private.h"
 #include "meta-wayland-stage.h"
@@ -45,11 +43,15 @@
 #include "meta-wayland-keyboard.h"
 #include "meta-wayland-pointer.h"
 #include "meta-wayland-data-device.h"
+#include "meta-cursor-tracker-private.h"
 #include "display-private.h"
 #include "window-private.h"
 #include <meta/types.h>
 #include <meta/main.h>
 #include "frame.h"
+#include "meta-idle-monitor-private.h"
+#include "meta-weston-launch.h"
+#include "monitor-private.h"
 
 static MetaWaylandCompositor _meta_wayland_compositor;
 
@@ -629,84 +631,186 @@ meta_wayland_compositor_create_region (struct wl_client *wayland_client,
   region->region = cairo_region_create ();
 }
 
+typedef struct {
+  MetaOutput               *output;
+  struct wl_global         *global;
+  int                       x, y;
+  enum wl_output_transform  transform;
+
+  GList                    *resources;
+} MetaWaylandOutput;
+
+static void
+output_resource_destroy (struct wl_resource *res)
+{
+  MetaWaylandOutput *wayland_output;
+
+  wayland_output = wl_resource_get_user_data (res);
+  wayland_output->resources = g_list_remove (wayland_output->resources, res);
+}
+
 static void
 bind_output (struct wl_client *client,
              void *data,
              guint32 version,
              guint32 id)
 {
-  MetaWaylandOutput *output = data;
-  struct wl_resource *resource =
-    wl_resource_create (client, &wl_output_interface, version, id);
-  GList *l;
+  MetaWaylandOutput *wayland_output = data;
+  MetaOutput *output = wayland_output->output;
+  struct wl_resource *resource;
+  guint mode_flags;
+
+  resource = wl_resource_create (client, &wl_output_interface, version, id);
+  wayland_output->resources = g_list_prepend (wayland_output->resources, resource);
+
+  wl_resource_set_user_data (resource, wayland_output);
+  wl_resource_set_destructor (resource, output_resource_destroy);
+
+  meta_verbose ("Binding output %p/%s (%u, %u, %u, %u) x %f\n",
+                output, output->name,
+                output->crtc->rect.x, output->crtc->rect.y,
+                output->crtc->rect.width, output->crtc->rect.height,
+                output->crtc->current_mode->refresh_rate);
 
   wl_resource_post_event (resource,
                           WL_OUTPUT_GEOMETRY,
-                          output->x, output->y,
+                          (int)output->crtc->rect.x,
+                          (int)output->crtc->rect.y,
                           output->width_mm,
                           output->height_mm,
-                          0, /* subpixel: unknown */
-                          "unknown", /* make */
-                          "unknown"); /* model */
+                          /* Cogl values reflect XRandR values,
+                             and so does wayland */
+                          output->subpixel_order,
+                          output->vendor,
+                          output->product,
+                          output->crtc->transform);
 
-  for (l = output->modes; l; l = l->next)
-    {
-      MetaWaylandMode *mode = l->data;
-      wl_resource_post_event (resource,
-                              WL_OUTPUT_MODE,
-                              mode->flags,
-                              mode->width,
-                              mode->height,
-                              mode->refresh);
-    }
+  g_assert (output->crtc->current_mode != NULL);
+
+  mode_flags = WL_OUTPUT_MODE_CURRENT;
+  if (output->crtc->current_mode == output->preferred_mode)
+    mode_flags |= WL_OUTPUT_MODE_PREFERRED;
+
+  wl_resource_post_event (resource,
+                          WL_OUTPUT_MODE,
+                          mode_flags,
+                          (int)output->crtc->current_mode->width,
+                          (int)output->crtc->current_mode->height,
+                          (int)output->crtc->current_mode->refresh_rate);
+
+  if (version >= 2)
+    wl_resource_post_event (resource,
+                            WL_OUTPUT_DONE);
 }
 
 static void
-meta_wayland_compositor_create_output (MetaWaylandCompositor *compositor,
-                                       int x,
-                                       int y,
-                                       int width,
-                                       int height,
-                                       int width_mm,
-                                       int height_mm)
+wayland_output_destroy_notify (gpointer data)
 {
-  MetaWaylandOutput *output = g_slice_new0 (MetaWaylandOutput);
-  MetaWaylandMode *mode;
-  float final_width, final_height;
+  MetaWaylandOutput *wayland_output = data;
+  GList *resources;
 
-  /* XXX: eventually we will support sliced stages and an output should
-   * correspond to a slice/CoglFramebuffer, but for now we only support
-   * one output so we make sure it always matches the size of the stage
-   */
-  clutter_actor_set_size (compositor->stage, width, height);
+  /* Make sure the destructors don't mess with the list */
+  resources = wayland_output->resources;
+  wayland_output->resources = NULL;
 
-  /* Read back the actual size we were given.
-   * XXX: This really needs re-thinking later though so we know the
-   * correct output geometry to use. */
-  clutter_actor_get_size (compositor->stage, &final_width, &final_height);
-  width = final_width;
-  height = final_height;
+  wl_global_destroy (wayland_output->global);
+  g_list_free (resources);
 
-  output->wayland_output.interface = &wl_output_interface;
+  g_slice_free (MetaWaylandOutput, wayland_output);
+}
 
-  output->x = x;
-  output->y = y;
-  output->width_mm = width_mm;
-  output->height_mm = height_mm;
+static void
+wayland_output_update_for_output (MetaWaylandOutput *wayland_output,
+                                  MetaOutput        *output)
+{
+  GList *iter;
+  guint mode_flags;
 
-  wl_global_create (compositor->wayland_display,
-		    &wl_output_interface, 2,
-		    output, bind_output);
+  g_assert (output->crtc->current_mode != NULL);
 
-  mode = g_slice_new0 (MetaWaylandMode);
-  mode->flags = WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED;
-  mode->width = width;
-  mode->height = height;
-  mode->refresh = 60;
+  mode_flags = WL_OUTPUT_MODE_CURRENT;
+  if (output->crtc->current_mode == output->preferred_mode)
+    mode_flags |= WL_OUTPUT_MODE_PREFERRED;
 
-  output->modes = g_list_prepend (output->modes, mode);
+  for (iter = wayland_output->resources; iter; iter = iter->next)
+    {
+      struct wl_resource *resource = iter->data;
 
-  compositor->outputs = g_list_prepend (compositor->outputs, output);
+      if (wayland_output->x != output->crtc->rect.x ||
+          wayland_output->y != output->crtc->rect.y ||
+          wayland_output->transform != output->crtc->transform)
+        {
+            wl_resource_post_event (resource,
+                                    WL_OUTPUT_GEOMETRY,
+                                    (int)output->crtc->rect.x,
+                                    (int)output->crtc->rect.y,
+                                    output->width_mm,
+                                    output->height_mm,
+                                    output->subpixel_order,
+                                    output->vendor,
+                                    output->product,
+                                    output->crtc->transform);
+        }
+
+      wl_resource_post_event (resource,
+                              WL_OUTPUT_MODE,
+                              mode_flags,
+                              (int)output->crtc->current_mode->width,
+                              (int)output->crtc->current_mode->height,
+                              (int)output->crtc->current_mode->refresh_rate);
+    }
+
+  /* It's very important that we change the output pointer here, as
+     the old structure is about to be freed by MetaMonitorManager */
+  wayland_output->output = output;
+  wayland_output->x = output->crtc->rect.x;
+  wayland_output->y = output->crtc->rect.y;
+  wayland_output->transform = output->crtc->transform;
+}
+
+static GHashTable *
+meta_wayland_compositor_update_outputs (MetaWaylandCompositor *compositor,
+                                        MetaMonitorManager    *monitors)
+{
+  MetaOutput *outputs;
+  unsigned int i, n_outputs;
+  GHashTable *new_table;
+
+  outputs = meta_monitor_manager_get_outputs (monitors, &n_outputs);
+  new_table = g_hash_table_new_full (NULL, NULL, NULL, wayland_output_destroy_notify);
+
+  for (i = 0; i < n_outputs; i++)
+    {
+      MetaOutput *output = &outputs[i];
+      MetaWaylandOutput *wayland_output;
+
+      /* wayland does not expose disabled outputs */
+      if (output->crtc == NULL)
+        {
+          g_hash_table_remove (compositor->outputs, GSIZE_TO_POINTER (output->output_id));
+          continue;
+        }
+
+      wayland_output = g_hash_table_lookup (compositor->outputs, GSIZE_TO_POINTER (output->output_id));
+
+      if (wayland_output)
+        {
+          g_hash_table_steal (compositor->outputs, GSIZE_TO_POINTER (output->output_id));
+        }
+      else
+        {
+          wayland_output = g_slice_new0 (MetaWaylandOutput);
+          wayland_output->global = wl_global_create (compositor->wayland_display,
+                                                     &wl_output_interface, 2,
+                                                     wayland_output, bind_output);
+        }
+
+      wayland_output_update_for_output (wayland_output, output);
+      g_hash_table_insert (new_table, GSIZE_TO_POINTER (output->output_id), wayland_output);
+    }
+
+  g_hash_table_destroy (compositor->outputs);
+  return new_table;
 }
 
 const static struct wl_compositor_interface meta_wayland_compositor_interface = {
@@ -1142,87 +1246,6 @@ bind_shell (struct wl_client *client,
   wl_resource_set_implementation (resource, &meta_wayland_shell_interface, data, NULL);
 }
 
-static void
-xserver_set_window_id (struct wl_client *client,
-                       struct wl_resource *compositor_resource,
-                       struct wl_resource *surface_resource,
-                       guint32 xid)
-{
-  MetaWaylandCompositor *compositor =
-    wl_resource_get_user_data (compositor_resource);
-  MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
-  MetaDisplay *display = meta_get_display ();
-  MetaWindow *window;
-
-  g_return_if_fail (surface->xid == None);
-
-  surface->xid = xid;
-
-  window  = meta_display_lookup_x_window (display, xid);
-  if (window)
-    {
-      MetaWindowActor *window_actor =
-        META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
-
-      meta_window_actor_set_wayland_surface (window_actor, surface);
-
-      surface->window = window;
-      window->surface = surface;
-
-      /* If the window is already meant to have focus then the
-       * original attempt to call this in response to the FocusIn
-       * event will have been lost because there was no surface
-       * yet. */
-      if (window->has_focus)
-        meta_wayland_compositor_set_input_focus (compositor, window);
-
-    }
-}
-
-static const struct xserver_interface xserver_implementation = {
-    xserver_set_window_id
-};
-
-static void
-bind_xserver (struct wl_client *client,
-	      void *data,
-              guint32 version,
-              guint32 id)
-{
-  MetaWaylandCompositor *compositor = data;
-
-  /* If it's a different client than the xserver we launched,
-   * don't start the wm. */
-  if (client != compositor->xwayland_client)
-    return;
-
-  compositor->xserver_resource =
-    wl_resource_create (client, &xserver_interface, version, id);
-  wl_resource_set_implementation (compositor->xserver_resource,
-				  &xserver_implementation, compositor, NULL);
-
-  wl_resource_post_event (compositor->xserver_resource,
-                          XSERVER_LISTEN_SOCKET,
-                          compositor->xwayland_abstract_fd);
-
-  wl_resource_post_event (compositor->xserver_resource,
-                          XSERVER_LISTEN_SOCKET,
-                          compositor->xwayland_unix_fd);
-
-  /* Make sure xwayland will recieve the above sockets in a finite
-   * time before unblocking the initialization mainloop since we are
-   * then going to immediately try and connect to those as the window
-   * manager. */
-  wl_client_flush (client);
-
-  /* At this point xwayland is all setup to start accepting
-   * connections so we can quit the transient initialization mainloop
-   * and unblock meta_wayland_init() to continue initializing mutter.
-   * */
-  g_main_loop_quit (compositor->init_loop);
-  compositor->init_loop = NULL;
-}
-
 static void
 stage_destroy_cb (void)
 {
@@ -1342,6 +1365,31 @@ synthesize_motion_event (MetaWaylandCompositor *compositor,
   meta_display_handle_event (display, (XEvent *) &generic_event);
 }
 
+static void
+reset_idletimes (const ClutterEvent *event)
+{
+  ClutterInputDevice *device, *source_device;
+  MetaIdleMonitor *core_monitor, *device_monitor;
+  int device_id;
+
+  device = clutter_event_get_device (event);
+  device_id = clutter_input_device_get_device_id (device);
+
+  core_monitor = meta_idle_monitor_get_core ();
+  device_monitor = meta_idle_monitor_get_for_device (device_id);
+
+  meta_idle_monitor_reset_idletime (core_monitor);
+  meta_idle_monitor_reset_idletime (device_monitor);
+
+  source_device = clutter_event_get_source_device (event);
+  if (source_device != device)
+    {
+      device_id = clutter_input_device_get_device_id (device);
+      device_monitor = meta_idle_monitor_get_for_device (device_id);
+      meta_idle_monitor_reset_idletime (device_monitor);
+    }
+}
+
 static gboolean
 event_cb (ClutterActor *stage,
           const ClutterEvent *event,
@@ -1352,6 +1400,8 @@ event_cb (ClutterActor *stage,
   MetaWaylandSurface *surface;
   MetaDisplay *display;
 
+  reset_idletimes (event);
+
   meta_wayland_seat_handle_event (compositor->seat, event);
 
   /* HACK: for now, the surfaces from Wayland clients aren't
@@ -1373,12 +1423,17 @@ event_cb (ClutterActor *stage,
         }
     }
 
-  meta_wayland_stage_set_cursor_position (META_WAYLAND_STAGE (stage),
-                                          wl_fixed_to_int (pointer->x),
-                                          wl_fixed_to_int (pointer->y));
+  if (seat->cursor_tracker)
+    {
+      meta_cursor_tracker_update_position (seat->cursor_tracker,
+					   wl_fixed_to_int (pointer->x),
+					   wl_fixed_to_int (pointer->y));
 
-  if (pointer->current == NULL)
-    meta_wayland_stage_set_default_cursor (META_WAYLAND_STAGE (stage));
+      if (pointer->current == NULL)
+	meta_cursor_tracker_revert_root (seat->cursor_tracker);
+
+      meta_cursor_tracker_queue_redraw (seat->cursor_tracker, stage);
+    }
 
   display = meta_get_display ();
   if (!display)
@@ -1462,11 +1517,22 @@ event_emission_hook_cb (GSignalInvocationHint *ihint,
   return TRUE /* stay connected */;
 }
 
+static void
+on_monitors_changed (MetaMonitorManager    *monitors,
+                     MetaWaylandCompositor *compositor)
+{
+  compositor->outputs = meta_wayland_compositor_update_outputs (compositor, monitors);
+}
+
 void
 meta_wayland_init (void)
 {
   MetaWaylandCompositor *compositor = &_meta_wayland_compositor;
   guint event_signal;
+  MetaMonitorManager *monitors;
+  ClutterBackend *backend;
+  CoglContext *cogl_context;
+  CoglRenderer *cogl_renderer;
 
   memset (compositor, 0, sizeof (MetaWaylandCompositor));
 
@@ -1503,11 +1569,44 @@ meta_wayland_init (void)
 
   clutter_wayland_set_compositor_display (compositor->wayland_display);
 
+  if (getenv ("WESTON_LAUNCHER_SOCK"))
+      compositor->launcher = meta_launcher_new ();
+
   if (clutter_init (NULL, NULL) != CLUTTER_INIT_SUCCESS)
     g_error ("Failed to initialize Clutter");
 
+  backend = clutter_get_default_backend ();
+  cogl_context = clutter_backend_get_cogl_context (backend);
+  cogl_renderer = cogl_display_get_renderer (cogl_context_get_display (cogl_context));
+
+  if (cogl_renderer_get_winsys_id (cogl_renderer) == COGL_WINSYS_ID_EGL_KMS)
+    compositor->drm_fd = cogl_kms_renderer_get_kms_fd (cogl_renderer);
+  else
+    compositor->drm_fd = -1;
+
+  if (compositor->drm_fd >= 0)
+    {
+      GError *error;
+
+      meta_launcher_set_drm_fd (compositor->launcher, compositor->drm_fd);
+
+      error = NULL;
+      if (!meta_launcher_set_master (compositor->launcher, TRUE, &error))
+	{
+	  g_error ("Failed to become DRM master: %s", error->message);
+	  g_error_free (error);
+	}
+    }
+
+  meta_monitor_manager_initialize ();
+  monitors = meta_monitor_manager_get ();
+  g_signal_connect (monitors, "monitors-changed",
+                    G_CALLBACK (on_monitors_changed), compositor);
+
+  compositor->outputs = g_hash_table_new_full (NULL, NULL, NULL, wayland_output_destroy_notify);
+  compositor->outputs = meta_wayland_compositor_update_outputs (compositor, monitors);
+
   compositor->stage = meta_wayland_stage_new ();
-  clutter_stage_set_user_resizable (CLUTTER_STAGE (compositor->stage), FALSE);
   g_signal_connect_after (compositor->stage, "paint",
                           G_CALLBACK (paint_finished_cb), compositor);
   g_signal_connect (compositor->stage, "destroy",
@@ -1532,8 +1631,6 @@ meta_wayland_init (void)
                               compositor, /* hook_data */
                               NULL /* data_destroy */);
 
-  meta_wayland_compositor_create_output (compositor, 0, 0, 1024, 600, 222, 125);
-
   if (wl_global_create (compositor->wayland_display,
 			&wl_shell_interface, 1,
 			compositor, bind_shell) == NULL)
@@ -1544,10 +1641,6 @@ meta_wayland_init (void)
   if (wl_display_add_socket (compositor->wayland_display, "wayland-0"))
     g_error ("Failed to create socket");
 
-  wl_global_create (compositor->wayland_display,
-		    &xserver_interface, 1,
-		    compositor, bind_xserver);
-
   /* XXX: It's important that we only try and start xwayland after we
    * have initialized EGL because EGL implements the "wl_drm"
    * interface which xwayland requires to determine what drm device
@@ -1562,41 +1655,21 @@ meta_wayland_init (void)
     g_error ("Failed to start X Wayland");
 
   putenv (g_strdup_printf ("DISPLAY=:%d", compositor->xwayland_display_index));
-
-  /* We need to run a mainloop until we know xwayland has a binding
-   * for our xserver interface at which point we can assume it's
-   * ready to start accepting connections. */
-  compositor->init_loop = g_main_loop_new (NULL, FALSE);
-
-  g_main_loop_run (compositor->init_loop);
 }
 
 void
 meta_wayland_finalize (void)
 {
-  meta_xwayland_stop (meta_wayland_compositor_get_default ());
+  MetaWaylandCompositor *compositor;
+
+  compositor = meta_wayland_compositor_get_default ();
+
+  meta_xwayland_stop (compositor);
+  g_clear_object (&compositor->launcher);
 }
 
-void
-meta_wayland_handle_sig_child (void)
+MetaLauncher *
+meta_wayland_compositor_get_launcher (MetaWaylandCompositor *compositor)
 {
-  int status;
-  pid_t pid = waitpid (-1, &status, WNOHANG);
-  MetaWaylandCompositor *compositor = &_meta_wayland_compositor;
-
-  /* The simplest measure to avoid infinitely re-spawning a crashing
-   * X server */
-  if (pid == compositor->xwayland_pid)
-    {
-      if (!WIFEXITED (status))
-        g_critical ("X Wayland crashed; aborting");
-      else
-        {
-          /* For now we simply abort if we see the server exit.
-           *
-           * In the future X will only be loaded lazily for legacy X support
-           * but for now it's a hard requirement. */
-          g_critical ("Spurious exit of X Wayland server");
-        }
-    }
+  return compositor->launcher;
 }

src/wayland/meta-weston-launch.c

@@ -0,0 +1,432 @@
+/*
+ * Copyright (C) 2013 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#include <config.h>
+
+#include <gio/gio.h>
+#include <gio/gunixfdmessage.h>
+
+#include <clutter/clutter.h>
+#include <clutter/evdev/clutter-evdev.h>
+
+#include <glib.h>
+#include <sys/time.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <stdlib.h>
+#include <sys/wait.h>
+
+#include <drm.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+#include "meta-weston-launch.h"
+
+struct _MetaLauncherClass
+{
+  GObjectClass parent_class;
+
+  void (*enter) (MetaLauncher *);
+  void (*leave) (MetaLauncher *);
+};
+
+struct _MetaLauncher
+{
+  GObject parent;
+
+  GSocket *weston_launch;
+  int drm_fd;
+
+  gboolean vt_switched;
+
+  GMainContext *nested_context;
+  GMainLoop *nested_loop;
+
+  GSource *inner_source;
+  GSource *outer_source;
+};
+
+enum {
+  SIGNAL_ENTER,
+  SIGNAL_LEAVE,
+  SIGNAL_LAST
+};
+
+static int signals[SIGNAL_LAST];
+
+G_DEFINE_TYPE (MetaLauncher, meta_launcher, G_TYPE_OBJECT);
+
+static gboolean
+send_message_to_wl (GSocket                *weston_launch,
+		    void                   *message,
+		    gsize                   size,
+		    GSocketControlMessage  *out_cmsg,
+		    GSocketControlMessage **in_cmsg,
+		    GError                **error)
+{
+  int ok;
+  GInputVector in_iov = { &ok, sizeof (int) };
+  GOutputVector out_iov = { message, size };
+  GSocketControlMessage *out_all_cmsg[2];
+  GSocketControlMessage **in_all_cmsg;
+  int flags = 0;
+  int i;
+
+  out_all_cmsg[0] = out_cmsg;
+  out_all_cmsg[1] = NULL;
+  if (g_socket_send_message (weston_launch, NULL,
+			     &out_iov, 1,
+			     out_all_cmsg, -1,
+			     flags, NULL, error) != (gssize)size)
+    return FALSE;
+
+  if (g_socket_receive_message (weston_launch, NULL,
+				&in_iov, 1,
+				&in_all_cmsg, NULL,
+				&flags, NULL, error) != sizeof (int))
+    return FALSE;
+
+  if (ok != 0)
+    {
+      if (ok == -1)
+	g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
+		     "Got failure from weston-launch");
+      else
+	g_set_error (error, G_IO_ERROR, g_io_error_from_errno (-ok),
+		     "Got failure from weston-launch: %s", strerror (-ok));
+
+      for (i = 0; in_all_cmsg && in_all_cmsg[i]; i++)
+	g_object_unref (in_all_cmsg[i]);
+      g_free (in_all_cmsg);
+
+      return FALSE;
+    }
+
+  if (in_all_cmsg && in_all_cmsg[0])
+    {
+      for (i = 1; in_all_cmsg[i]; i++)
+	g_object_unref (in_all_cmsg[i]);
+      *in_cmsg = in_all_cmsg[0];
+    }
+
+  g_free (in_all_cmsg);
+  return TRUE;
+}	    
+
+gboolean
+meta_launcher_set_master (MetaLauncher  *self,
+			  gboolean       master,
+			  GError       **error)
+{
+  struct weston_launcher_set_master message;
+  GSocketControlMessage *cmsg;
+  gboolean ok;
+
+  message.header.opcode = WESTON_LAUNCHER_DRM_SET_MASTER;
+  message.set_master = master;
+
+  cmsg = g_unix_fd_message_new ();
+  if (g_unix_fd_message_append_fd (G_UNIX_FD_MESSAGE (cmsg),
+				   self->drm_fd, error) == FALSE)
+    {
+      g_object_unref (cmsg);
+      return FALSE;
+    }
+
+  ok = send_message_to_wl (self->weston_launch, &message,
+			   sizeof message, cmsg, NULL, error);
+
+  g_object_unref (cmsg);
+  return ok;
+}
+
+int
+meta_launcher_open_input_device (MetaLauncher  *self,
+				 const char    *name,
+				 int            flags,
+				 GError       **error)
+{
+  struct weston_launcher_open *message;
+  GSocketControlMessage *cmsg;
+  gboolean ok;
+  gsize size;
+  int *fds, n_fd;
+  int ret;
+
+  size = sizeof (struct weston_launcher_open) + strlen (name) + 1;
+  message = g_malloc (size);
+  message->header.opcode = WESTON_LAUNCHER_OPEN;
+  message->flags = flags;
+  strcpy (message->path, name);
+  message->path[strlen(name)] = 0;
+
+  ok = send_message_to_wl (self->weston_launch, message, size,
+			   NULL, &cmsg, error);
+
+  if (ok)
+    {
+      g_assert (G_IS_UNIX_FD_MESSAGE (cmsg));
+
+      fds = g_unix_fd_message_steal_fds (G_UNIX_FD_MESSAGE (cmsg), &n_fd);
+      g_assert (n_fd == 1);
+
+      ret = fds[0];
+      g_free (fds);
+      g_object_unref (cmsg);
+    }
+  else
+    ret = -1;
+
+  g_free (message);
+  return ret;
+}
+
+static void
+meta_launcher_finalize (GObject *object)
+{
+  MetaLauncher *launcher = META_LAUNCHER (object);
+
+  g_source_destroy (launcher->outer_source);
+  g_source_destroy (launcher->inner_source);
+
+  g_main_loop_unref (launcher->nested_loop);
+  g_main_context_unref (launcher->nested_context);
+
+  g_object_unref (launcher->weston_launch);
+
+  G_OBJECT_CLASS (meta_launcher_parent_class)->finalize (object);
+}
+
+static void
+meta_launcher_enter (MetaLauncher *launcher)
+{
+  GError *error;
+
+  error = NULL;
+  if (!meta_launcher_set_master (launcher, TRUE, &error))
+    {
+      g_critical ("Failed to become DRM master: %s", error->message);
+      g_error_free (error);
+    }
+
+  clutter_evdev_reclaim_devices ();
+}
+
+static void
+meta_launcher_leave (MetaLauncher *launcher)
+{
+  GError *error;
+
+  error = NULL;
+  if (!meta_launcher_set_master (launcher, FALSE, &error))
+    {
+      g_critical ("Failed to release DRM master: %s", error->message);
+      g_error_free (error);
+    }
+
+  clutter_evdev_release_devices ();
+}
+
+
+static int
+on_evdev_device_open (const char  *path,
+		      int          flags,
+		      gpointer     user_data,
+		      GError     **error)
+{
+  MetaLauncher *launcher = user_data;
+
+  return meta_launcher_open_input_device (launcher, path, flags, error);
+}
+
+static void
+handle_vt_enter (MetaLauncher *launcher)
+{
+  g_assert (launcher->vt_switched);
+
+  g_main_loop_quit (launcher->nested_loop);
+}
+
+static void
+handle_request_vt_switch (MetaLauncher *launcher)
+{
+  struct weston_launcher_message message;
+  GError *error;
+  gboolean ok;
+
+  g_signal_emit (launcher, signals[SIGNAL_LEAVE], 0);
+
+  message.opcode = WESTON_LAUNCHER_CONFIRM_VT_SWITCH;
+
+  error = NULL;
+  ok = send_message_to_wl (launcher->weston_launch, &message,
+			   sizeof (message), NULL, NULL, &error);
+  if (!ok) {
+    g_warning ("Failed to acknowledge VT switch: %s", error->message);
+    g_error_free (error);
+
+    return;
+  }
+
+  g_assert (!launcher->vt_switched);
+  launcher->vt_switched = TRUE;
+
+  /* We can't do anything at this point, because we don't
+     have input devices and we don't have the DRM master,
+     so let's run a nested busy loop until the VT is reentered */
+  g_main_loop_run (launcher->nested_loop);
+
+  g_assert (launcher->vt_switched);
+  launcher->vt_switched = FALSE;
+
+  g_signal_emit (launcher, signals[SIGNAL_ENTER], 0);
+}
+
+static void
+on_socket_readable (GSocket      *socket,
+		    GIOCondition  condition,
+		    gpointer      user_data)
+{
+  MetaLauncher *launcher = user_data;
+  struct weston_launcher_message header;
+  gssize read;
+  GError *error;
+
+  if ((condition & G_IO_IN) == 0)
+    return;
+
+  error = NULL;
+  read = g_socket_receive (socket, (char*)&header, sizeof(header), NULL, &error);
+  if (read < (gssize)sizeof(header))
+    {
+      g_warning ("Error reading from weston-launcher socket: %s", error->message);
+      g_error_free (error);
+      return;
+    }
+
+  switch (header.opcode)
+    {
+    case WESTON_LAUNCHER_SERVER_REQUEST_VT_SWITCH:
+      handle_request_vt_switch (launcher);
+      break;
+
+    case WESTON_LAUNCHER_SERVER_VT_ENTER:
+      handle_vt_enter (launcher);
+      break;
+    }
+}
+
+static int
+env_get_fd (const char *env)
+{
+  const char *value;
+
+  value = g_getenv (env);
+
+  if (value == NULL)
+    return -1;
+  else
+    return g_ascii_strtoll (value, NULL, 10);
+}
+
+static void
+meta_launcher_init (MetaLauncher *self)
+{
+  int launch_fd;
+
+  launch_fd = env_get_fd ("WESTON_LAUNCHER_SOCK");
+  if (launch_fd < 0)
+    g_error ("Invalid mutter-launch socket");
+
+  self->weston_launch = g_socket_new_from_fd (launch_fd, NULL);
+
+  clutter_evdev_set_open_callback (on_evdev_device_open, self);
+
+  self->nested_context = g_main_context_new ();
+  self->nested_loop = g_main_loop_new (self->nested_context, FALSE);
+
+  self->outer_source = g_socket_create_source (self->weston_launch, G_IO_IN, NULL);
+  g_source_set_callback (self->outer_source, (GSourceFunc)on_socket_readable, self, NULL);
+  g_source_attach (self->outer_source, NULL);
+  g_source_unref (self->outer_source);
+
+  self->inner_source = g_socket_create_source (self->weston_launch, G_IO_IN, NULL);
+  g_source_set_callback (self->inner_source, (GSourceFunc)on_socket_readable, self, NULL);
+  g_source_attach (self->inner_source, self->nested_context);
+  g_source_unref (self->inner_source);
+}
+
+static void
+meta_launcher_class_init (MetaLauncherClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = meta_launcher_finalize;
+
+  klass->enter = meta_launcher_enter;
+  klass->leave = meta_launcher_leave;
+
+  signals[SIGNAL_ENTER] = g_signal_new ("enter",
+					G_TYPE_FROM_CLASS (klass),
+					G_SIGNAL_RUN_FIRST,
+					G_STRUCT_OFFSET (MetaLauncherClass, enter),
+					NULL, NULL, /* accumulator */
+					g_cclosure_marshal_VOID__VOID,
+					G_TYPE_NONE, 0);
+
+  signals[SIGNAL_LEAVE] = g_signal_new ("leave",
+					G_TYPE_FROM_CLASS (klass),
+					G_SIGNAL_RUN_FIRST,
+					G_STRUCT_OFFSET (MetaLauncherClass, leave),
+					NULL, NULL, /* accumulator */
+					g_cclosure_marshal_VOID__VOID,
+					G_TYPE_NONE, 0);
+}
+
+MetaLauncher *
+meta_launcher_new (void)
+{
+  return g_object_new (META_TYPE_LAUNCHER, NULL);
+}
+
+gboolean
+meta_launcher_activate_vt (MetaLauncher  *launcher,
+			   int            vt,
+			   GError       **error)
+{
+  struct weston_launcher_activate_vt message;
+
+  message.header.opcode = WESTON_LAUNCHER_ACTIVATE_VT;
+  message.vt = vt;
+
+  return send_message_to_wl (launcher->weston_launch, &message,
+			     sizeof (message), NULL, NULL, error);
+}
+
+void
+meta_launcher_set_drm_fd (MetaLauncher *launcher,
+			  int           drm_fd)
+{
+  launcher->drm_fd = drm_fd;
+}

src/wayland/meta-weston-launch.h

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2013 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef META_WESTON_LAUNCH_H
+#define META_WESTON_LAUNCH_H
+
+#include <glib-object.h>
+#include "weston-launch.h"
+
+#define META_TYPE_LAUNCHER              (meta_launcher_get_type())
+#define META_LAUNCHER(obj)              (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_LAUNCHER, MetaLauncher))
+#define META_LAUNCHER_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_LAUNCHER, MetaLauncherClass))
+#define META_IS_LAUNCHER(obj)           (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_LAUNCHER))
+#define META_IS_LAUNCHER_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_LAUNCHER))
+#define META_LAUNCHER_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), META_LAUNCHER, MetaLauncherClass))
+
+typedef struct _MetaLauncher      MetaLauncher;
+typedef struct _MetaLauncherClass MetaLauncherClass;
+
+GType             meta_launcher_get_type                (void) G_GNUC_CONST;
+
+MetaLauncher     *meta_launcher_new                     (void);
+
+gboolean          meta_launcher_activate_vt             (MetaLauncher  *self,
+							 int            number,
+							 GError       **error);
+
+void              meta_launcher_set_drm_fd              (MetaLauncher  *self,
+							 int            drm_fd);
+gboolean          meta_launcher_set_master              (MetaLauncher  *self,
+							 gboolean       master,
+							 GError       **error);
+int               meta_launcher_open_input_device       (MetaLauncher  *self,
+							 const char    *name,
+							 int            flags,
+							 GError       **error);
+
+#endif

src/wayland/meta-xwayland.c

@@ -19,8 +19,6 @@
  * 02111-1307, USA.
  */
 
-#include "meta-xwayland-private.h"
-
 #include <glib.h>
 
 #include <unistd.h>
@@ -28,6 +26,93 @@
 #include <errno.h>
 #include <sys/socket.h>
 #include <sys/un.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+
+#include "meta-xwayland-private.h"
+#include "meta-window-actor-private.h"
+#include "xserver-server-protocol.h"
+
+static void
+xserver_set_window_id (struct wl_client *client,
+                       struct wl_resource *compositor_resource,
+                       struct wl_resource *surface_resource,
+                       guint32 xid)
+{
+  MetaWaylandCompositor *compositor =
+    wl_resource_get_user_data (compositor_resource);
+  MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
+  MetaDisplay *display = meta_get_display ();
+  MetaWindow *window;
+
+  g_return_if_fail (surface->xid == None);
+
+  surface->xid = xid;
+
+  window  = meta_display_lookup_x_window (display, xid);
+  if (window)
+    {
+      MetaWindowActor *window_actor =
+        META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
+
+      meta_window_actor_set_wayland_surface (window_actor, surface);
+
+      surface->window = window;
+      window->surface = surface;
+
+      /* If the window is already meant to have focus then the
+       * original attempt to call this in response to the FocusIn
+       * event will have been lost because there was no surface
+       * yet. */
+      if (window->has_focus)
+        meta_wayland_compositor_set_input_focus (compositor, window);
+
+    }
+}
+
+static const struct xserver_interface xserver_implementation = {
+    xserver_set_window_id
+};
+
+static void
+bind_xserver (struct wl_client *client,
+	      void *data,
+              guint32 version,
+              guint32 id)
+{
+  MetaWaylandCompositor *compositor = data;
+
+  /* If it's a different client than the xserver we launched,
+   * don't start the wm. */
+  if (client != compositor->xwayland_client)
+    return;
+
+  compositor->xserver_resource =
+    wl_resource_create (client, &xserver_interface, version, id);
+  wl_resource_set_implementation (compositor->xserver_resource,
+				  &xserver_implementation, compositor, NULL);
+
+  wl_resource_post_event (compositor->xserver_resource,
+                          XSERVER_LISTEN_SOCKET,
+                          compositor->xwayland_abstract_fd);
+
+  wl_resource_post_event (compositor->xserver_resource,
+                          XSERVER_LISTEN_SOCKET,
+                          compositor->xwayland_unix_fd);
+
+  /* Make sure xwayland will recieve the above sockets in a finite
+   * time before unblocking the initialization mainloop since we are
+   * then going to immediately try and connect to those as the window
+   * manager. */
+  wl_client_flush (client);
+
+  /* At this point xwayland is all setup to start accepting
+   * connections so we can quit the transient initialization mainloop
+   * and unblock meta_wayland_init() to continue initializing mutter.
+   * */
+  g_main_loop_quit (compositor->init_loop);
+  compositor->init_loop = NULL;
+}
 
 static char *
 create_lockfile (int display, int *display_out)
@@ -183,6 +268,39 @@ bind_to_unix_socket (int display)
   return fd;
 }
 
+static void
+uncloexec_and_setpgid (gpointer user_data)
+{
+  int fd = GPOINTER_TO_INT (user_data);
+
+  /* Make sure the client end of the socket pair doesn't get closed
+   * when we exec xwayland. */
+  int flags = fcntl (fd, F_GETFD);
+  if (flags != -1)
+    fcntl (fd, F_SETFD, flags & ~FD_CLOEXEC);
+
+  /* Put this process in a background process group, so that Ctrl-C
+     goes to mutter only */
+  setpgid (0, 0);
+}
+
+static void
+xserver_died (GPid     pid,
+              gint     status,
+              gpointer user_data)
+{
+  if (!WIFEXITED (status))
+    g_error ("X Wayland crashed; aborting");
+  else
+    {
+      /* For now we simply abort if we see the server exit.
+       *
+       * In the future X will only be loaded lazily for legacy X support
+       * but for now it's a hard requirement. */
+      g_error ("Spurious exit of X Wayland server");
+    }
+}
+
 gboolean
 meta_xwayland_start (MetaWaylandCompositor *compositor)
 {
@@ -190,6 +308,15 @@ meta_xwayland_start (MetaWaylandCompositor *compositor)
   char *lockfile = NULL;
   int sp[2];
   pid_t pid;
+  char **env;
+  char *fd_string;
+  char *display_name;
+  char *args[11];
+  GError *error;
+
+  wl_global_create (compositor->wayland_display,
+		    &xserver_interface, 1,
+		    compositor, bind_xserver);
 
   do
     {
@@ -238,45 +365,39 @@ meta_xwayland_start (MetaWaylandCompositor *compositor)
       return 1;
     }
 
-  switch ((pid = fork()))
+  env = g_get_environ ();
+  fd_string = g_strdup_printf ("%d", sp[1]);
+  env = g_environ_setenv (env, "WAYLAND_SOCKET", fd_string, TRUE);
+  g_free (fd_string);
+
+  display_name = g_strdup_printf (":%d",
+                                  compositor->xwayland_display_index);
+
+  args[0] = XWAYLAND_PATH;
+  args[1] = display_name;
+  args[2] = "-wayland";
+  args[3] = "-rootless";
+  args[4] = "-retro";
+  args[5] = "-noreset";
+  args[6] = "-logfile";
+  args[7] = g_build_filename (g_get_user_cache_dir (), "xwayland.log", NULL);
+  args[8] = "-nolisten";
+  args[9] = "all";
+  args[10] = NULL;
+
+  error = NULL;
+  if (g_spawn_async (NULL, /* cwd */
+                     args,
+                     env,
+                     G_SPAWN_LEAVE_DESCRIPTORS_OPEN |
+                     G_SPAWN_DO_NOT_REAP_CHILD |
+                     G_SPAWN_STDOUT_TO_DEV_NULL |
+                     G_SPAWN_STDERR_TO_DEV_NULL,
+                     uncloexec_and_setpgid,
+                     GINT_TO_POINTER (sp[1]),
+                     &pid,
+                     &error))
     {
-    case 0:
-        {
-          char *fd_string;
-          char *display_name;
-          /* Make sure the client end of the socket pair doesn't get closed
-           * when we exec xwayland. */
-          int flags = fcntl (sp[1], F_GETFD);
-          if (flags != -1)
-            fcntl (sp[1], F_SETFD, flags & ~FD_CLOEXEC);
-
-          fd_string = g_strdup_printf ("%d", sp[1]);
-          setenv ("WAYLAND_SOCKET", fd_string, 1);
-          g_free (fd_string);
-
-          display_name = g_strdup_printf (":%d",
-                                          compositor->xwayland_display_index);
-
-          if (execl (XWAYLAND_PATH,
-                     XWAYLAND_PATH,
-                     display_name,
-                     "-wayland",
-                     "-rootless",
-                     "-retro",
-                     "-noreset",
-                     /* FIXME: does it make sense to log to the filesystem by
-                      * default? */
-                     "-logfile", "/tmp/xwayland.log",
-                     "-nolisten", "all",
-                     NULL) < 0)
-            {
-              char *msg = strerror (errno);
-              g_warning ("xwayland exec failed: %s", msg);
-            }
-          exit (-1);
-          return FALSE;
-        }
-    default:
       g_message ("forked X server, pid %d\n", pid);
 
       close (sp[1]);
@@ -284,12 +405,22 @@ meta_xwayland_start (MetaWaylandCompositor *compositor)
         wl_client_create (compositor->wayland_display, sp[0]);
 
       compositor->xwayland_pid = pid;
-      break;
-
-    case -1:
-      g_error ("Failed to fork for xwayland server");
-      return FALSE;
+      g_child_watch_add (pid, xserver_died, NULL);
     }
+  else
+    {
+      g_error ("Failed to fork for xwayland server: %s", error->message);
+    }
+
+  g_strfreev (env);
+  g_free (display_name);
+
+  /* We need to run a mainloop until we know xwayland has a binding
+   * for our xserver interface at which point we can assume it's
+   * ready to start accepting connections. */
+  compositor->init_loop = g_main_loop_new (NULL, FALSE);
+
+  g_main_loop_run (compositor->init_loop);
 
   return TRUE;
 }

src/wayland/weston-launch.c

@@ -0,0 +1,742 @@
+/*
+ * Copyright © 2012 Benjamin Franzke
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of the copyright holders not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission.  The copyright holders make
+ * no representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <poll.h>
+#include <errno.h>
+
+#include <error.h>
+#include <getopt.h>
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <sys/socket.h>
+#include <sys/signalfd.h>
+#include <signal.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <limits.h>
+
+#include <termios.h>
+#include <linux/vt.h>
+#include <linux/major.h>
+#include <linux/kd.h>
+
+#include <pwd.h>
+#include <grp.h>
+#include <security/pam_appl.h>
+
+#include <xf86drm.h>
+
+#include <systemd/sd-login.h>
+
+#include "weston-launch.h"
+
+#define MAX_ARGV_SIZE 256
+
+enum vt_state {
+	VT_HAS_VT,
+	VT_PENDING_CONFIRM,
+	VT_NOT_HAVE_VT,
+};
+
+struct weston_launch {
+	struct pam_conv pc;
+	pam_handle_t *ph;
+	int tty;
+	int ttynr;
+	int sock[2];
+	struct passwd *pw;
+
+	int signalfd;
+
+	pid_t child;
+	int verbose;
+	char *new_user;
+
+	struct termios terminal_attributes;
+	int kb_mode;
+	enum vt_state vt_state;
+	int expect_drop_master;
+};
+
+union cmsg_data { unsigned char b[4]; int fd; };
+
+static void quit (struct weston_launch *wl, int status);
+
+static int
+weston_launch_allowed(struct weston_launch *wl)
+{
+	char *session, *seat;
+	int err;
+
+	if (getuid() == 0)
+		return 1;
+
+	err = sd_pid_get_session(getpid(), &session);
+	if (err == 0 && session) {
+		if (sd_session_is_active(session) &&
+		    sd_session_get_seat(session, &seat) == 0) {
+			free(seat);
+			free(session);
+			return 1;
+		}
+		free(session);
+	}
+	
+	return 0;
+}
+
+static int
+setup_launcher_socket(struct weston_launch *wl)
+{
+	if (socketpair(AF_LOCAL, SOCK_DGRAM, 0, wl->sock) < 0)
+		error(1, errno, "socketpair failed");
+	
+	fcntl(wl->sock[0], F_SETFD, O_CLOEXEC);
+
+	return 0;
+}
+
+static int
+setup_signals(struct weston_launch *wl)
+{
+	int ret;
+	sigset_t mask;
+	struct sigaction sa;
+
+	memset(&sa, 0, sizeof sa);
+	sa.sa_handler = SIG_DFL;
+	sa.sa_flags = SA_NOCLDSTOP | SA_RESTART;
+	ret = sigaction(SIGCHLD, &sa, NULL);
+	assert(ret == 0);
+
+	sa.sa_handler = SIG_IGN;
+	sa.sa_flags = 0;
+	sigaction(SIGHUP, &sa, NULL);
+
+	ret = sigemptyset(&mask);
+	assert(ret == 0);
+	sigaddset(&mask, SIGCHLD);
+	sigaddset(&mask, SIGINT);
+	sigaddset(&mask, SIGTERM);
+	sigaddset(&mask, SIGUSR1);
+	ret = sigprocmask(SIG_BLOCK, &mask, NULL);
+	assert(ret == 0);
+
+	wl->signalfd = signalfd(-1, &mask, SFD_NONBLOCK | SFD_CLOEXEC);
+	if (wl->signalfd < 0)
+		return -errno;
+
+	return 0;
+}
+
+static void
+setenv_fd(const char *env, int fd)
+{
+	char buf[32];
+
+	snprintf(buf, sizeof buf, "%d", fd);
+	setenv(env, buf, 1);
+}
+
+static int
+handle_setmaster(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
+{
+	int ret = -1;
+	struct cmsghdr *cmsg;
+	struct weston_launcher_set_master *message;
+	union cmsg_data *data;
+
+	if (len != sizeof(*message)) {
+		error(0, 0, "missing value in setmaster request");
+		goto out;
+	}
+
+	message = msg->msg_iov->iov_base;
+
+	cmsg = CMSG_FIRSTHDR(msg);
+	if (!cmsg ||
+	    cmsg->cmsg_level != SOL_SOCKET ||
+	    cmsg->cmsg_type != SCM_RIGHTS) {
+		error(0, 0, "invalid control message");
+		goto out;
+	}
+
+	data = (union cmsg_data *) CMSG_DATA(cmsg);
+	if (data->fd == -1) {
+		error(0, 0, "missing drm fd in socket request");
+		goto out;
+	}
+
+	if (message->set_master)
+		ret = drmSetMaster(data->fd);
+	else
+		ret = drmDropMaster(data->fd);
+	if (ret == -1)
+		ret = -errno;
+
+	if (message->set_master == 0)
+		wl->expect_drop_master = 0;
+
+	close(data->fd);
+
+	if (wl->verbose)
+		fprintf(stderr, "weston-launch: %sMaster, ret: %d, fd: %d\n",
+			message->set_master ? "set" : "drop", ret, data->fd);
+
+out:
+	do {
+		len = send(wl->sock[0], &ret, sizeof ret, 0);
+	} while (len < 0 && errno == EINTR);
+	if (len < 0)
+		return -1;
+
+	return 0;
+}
+
+static int
+handle_confirm_vt_switch(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
+{
+	int ret = -1;
+
+	if (wl->vt_state != VT_PENDING_CONFIRM) {
+		error(0, 0, "unexpected CONFIRM_VT_SWITCH");
+		goto out;
+	}
+
+	if (wl->expect_drop_master) {
+		error(0, 0, "drmDropMaster not called for VT switch");
+		quit(wl, 1);
+	}
+
+	wl->vt_state = VT_NOT_HAVE_VT;
+	ioctl(wl->tty, VT_RELDISP, 1);
+
+	if (wl->verbose)
+		fprintf(stderr, "weston-launcher: confirmed VT switch\n");
+
+	ret = 0;
+
+out:
+	do {
+		len = send(wl->sock[0], &ret, sizeof ret, 0);
+	} while (len < 0 && errno == EINTR);
+	if (len < 0)
+		return -1;
+
+	return 0;
+}
+
+static int
+handle_activate_vt(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
+{
+	int ret = -1;
+	struct weston_launcher_activate_vt *message;
+
+	if (len != sizeof(*message)) {
+		error(0, 0, "missing value in activate_vt request");
+		goto out;
+	}
+
+	message = msg->msg_iov->iov_base;
+
+	ret = ioctl(wl->tty, VT_ACTIVATE, message->vt);
+	if (ret < 0)
+		ret = -errno;
+
+	if (wl->verbose)
+		fprintf(stderr, "weston-launch: activate VT, ret: %d\n", ret);
+
+out:
+	do {
+		len = send(wl->sock[0], &ret, sizeof ret, 0);
+	} while (len < 0 && errno == EINTR);
+	if (len < 0)
+		return -1;
+
+	return 0;
+}
+
+
+static int
+handle_open(struct weston_launch *wl, struct msghdr *msg, ssize_t len)
+{
+	int fd = -1, ret = -1;
+	char control[CMSG_SPACE(sizeof(fd))];
+	struct cmsghdr *cmsg;
+	struct stat s;
+	struct msghdr nmsg;
+	struct iovec iov;
+	struct weston_launcher_open *message;
+	union cmsg_data *data;
+
+	message = msg->msg_iov->iov_base;
+	if ((size_t)len < sizeof(*message))
+		goto err0;
+
+	/* Ensure path is null-terminated */
+	((char *) message)[len-1] = '\0';
+
+	if (stat(message->path, &s) < 0)
+		goto err0;
+
+	fd = open(message->path, message->flags);
+	if (fd < 0) {
+		fprintf(stderr, "Error opening device %s: %m\n",
+			message->path);
+		goto err0;
+	}
+
+	if (major(s.st_rdev) != INPUT_MAJOR) {
+		close(fd);
+		fd = -1;
+		fprintf(stderr, "Device %s is not an input device\n",
+			message->path);
+		goto err0;
+	}
+
+err0:
+	memset(&nmsg, 0, sizeof nmsg);
+	nmsg.msg_iov = &iov;
+	nmsg.msg_iovlen = 1;
+	if (fd != -1) {
+		nmsg.msg_control = control;
+		nmsg.msg_controllen = sizeof control;
+		cmsg = CMSG_FIRSTHDR(&nmsg);
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_type = SCM_RIGHTS;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(fd));
+		data = (union cmsg_data *) CMSG_DATA(cmsg);
+		data->fd = fd;
+		nmsg.msg_controllen = cmsg->cmsg_len;
+		ret = 0;
+	}
+	iov.iov_base = &ret;
+	iov.iov_len = sizeof ret;
+
+	if (wl->verbose)
+		fprintf(stderr, "weston-launch: opened %s: ret: %d, fd: %d\n",
+			message->path, ret, fd);
+	do {
+		len = sendmsg(wl->sock[0], &nmsg, 0);
+	} while (len < 0 && errno == EINTR);
+
+	close(fd);
+
+	if (len < 0)
+		return -1;
+
+	return 0;
+}
+
+static int
+handle_socket_msg(struct weston_launch *wl)
+{
+	char control[CMSG_SPACE(sizeof(int))];
+	char buf[BUFSIZ];
+	struct msghdr msg;
+	struct iovec iov;
+	int ret = -1;
+	ssize_t len;
+	struct weston_launcher_message *message;
+
+	memset(&msg, 0, sizeof(msg));
+	iov.iov_base = buf;
+	iov.iov_len  = sizeof buf;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = control;
+	msg.msg_controllen = sizeof control;
+
+	do {
+		len = recvmsg(wl->sock[0], &msg, 0);
+	} while (len < 0 && errno == EINTR);
+
+	if (len < 1)
+		return -1;
+
+	message = (void *) buf;
+	switch (message->opcode) {
+	case WESTON_LAUNCHER_OPEN:
+		ret = handle_open(wl, &msg, len);
+		break;
+	case WESTON_LAUNCHER_DRM_SET_MASTER:
+		ret = handle_setmaster(wl, &msg, len);
+		break;
+	case WESTON_LAUNCHER_CONFIRM_VT_SWITCH:
+		ret = handle_confirm_vt_switch(wl, &msg, len);
+		break;
+	case WESTON_LAUNCHER_ACTIVATE_VT:
+		ret = handle_activate_vt(wl, &msg, len);
+		break;
+	}
+
+	return ret;
+}
+
+static void
+tty_reset(struct weston_launch *wl)
+{
+	struct vt_mode mode = { 0 };
+
+	if (ioctl(wl->tty, KDSKBMODE, wl->kb_mode))
+		fprintf(stderr, "failed to restore keyboard mode: %m\n");
+
+	if (ioctl(wl->tty, KDSETMODE, KD_TEXT))
+		fprintf(stderr, "failed to set KD_TEXT mode on tty: %m\n");
+
+	if (tcsetattr(wl->tty, TCSANOW, &wl->terminal_attributes) < 0)
+		fprintf(stderr, "could not restore terminal to canonical mode\n");
+
+	mode.mode = VT_AUTO;
+	if (ioctl(wl->tty, VT_SETMODE, &mode) < 0)
+		fprintf(stderr, "could not reset vt handling\n");
+}
+
+static void
+quit(struct weston_launch *wl, int status)
+{
+	int err;
+
+	if (wl->child > 0)
+		kill(wl->child, SIGKILL);
+
+	close(wl->signalfd);
+	close(wl->sock[0]);
+
+	tty_reset(wl);
+
+	if (wl->new_user) {
+		err = pam_close_session(wl->ph, 0);
+		if (err)
+			fprintf(stderr, "pam_close_session failed: %d: %s\n",
+				err, pam_strerror(wl->ph, err));
+		pam_end(wl->ph, err);
+	}
+
+	exit(status);
+}
+
+static int
+handle_vt_switch(struct weston_launch *wl)
+{
+	struct weston_launcher_message message;
+	ssize_t len;
+
+	if (wl->vt_state == VT_HAS_VT) {
+		wl->vt_state = VT_PENDING_CONFIRM;
+		wl->expect_drop_master = 1;
+		message.opcode = WESTON_LAUNCHER_SERVER_REQUEST_VT_SWITCH;
+	} else if (wl->vt_state == VT_NOT_HAVE_VT) {
+		wl->vt_state = VT_HAS_VT;
+		ioctl(wl->tty, VT_RELDISP, VT_ACKACQ);
+
+		message.opcode = WESTON_LAUNCHER_SERVER_VT_ENTER;
+	} else
+		return -1;
+
+	do {
+		len = send(wl->sock[0], &message, sizeof(message), 0);
+	} while (len < 0 && errno == EINTR);
+
+	return 0;
+}
+
+
+static int
+handle_signal(struct weston_launch *wl)
+{
+	struct signalfd_siginfo sig;
+	int pid, status, ret;
+
+	if (read(wl->signalfd, &sig, sizeof sig) != sizeof sig) {
+		error(0, errno, "reading signalfd failed");
+		return -1;
+	}
+
+	switch (sig.ssi_signo) {
+	case SIGCHLD:
+		pid = waitpid(-1, &status, 0);
+		if (pid == wl->child) {
+			wl->child = 0;
+			if (WIFEXITED(status))
+				ret = WEXITSTATUS(status);
+			else if (WIFSIGNALED(status))
+				/*
+				 * If weston dies because of signal N, we
+				 * return 10+N. This is distinct from
+				 * weston-launch dying because of a signal
+				 * (128+N).
+				 */
+				ret = 10 + WTERMSIG(status);
+			else
+				ret = 0;
+			quit(wl, ret);
+		}
+		break;
+	case SIGTERM:
+	case SIGINT:
+		if (wl->child)
+			kill(wl->child, sig.ssi_signo);
+		break;
+	case SIGUSR1:
+		return handle_vt_switch(wl);
+	default:
+		return -1;
+	}
+
+	return 0;
+}
+
+static int
+setup_tty(struct weston_launch *wl)
+{
+	struct stat buf;
+	struct termios raw_attributes;
+	struct vt_mode mode = { 0 };
+	char *session, *tty;
+	char path[PATH_MAX];
+	int ok;
+
+	ok = sd_pid_get_session(getpid(), &session);
+	if (ok < 0)
+	  error(1, -ok, "could not determine current session");
+
+	ok = sd_session_get_tty(session, &tty);
+	if (ok == 0) {
+		snprintf(path, PATH_MAX, "/dev/%s", tty);
+		wl->tty = open(path, O_RDWR | O_NOCTTY | O_CLOEXEC);
+		free(tty);
+#ifdef HAVE_SD_SESSION_GET_VT
+	} else if (ok == -ENOENT) {
+		/* Negative errnos are cool, right?
+		   So cool that we can't distinguish "session not found"
+		   from "key does not exist in the session file"!
+		   Let's assume the latter, as we got the value
+		   from sd_pid_get_session()...
+		*/
+
+		ok = sd_session_get_vt(session, &tty);
+		if (ok < 0)
+			error(1, -ok, "could not determine current TTY");
+
+		snprintf(path, PATH_MAX, "/dev/tty%s", tty);
+		wl->tty = open(path, O_RDWR | O_NOCTTY | O_CLOEXEC);
+		free(tty);
+#endif
+	} else
+		error(1, -ok, "could not determine current TTY");
+
+	if (wl->tty < 0)
+		error(1, errno, "failed to open tty");
+
+	if (fstat(wl->tty, &buf) < 0)
+		error(1, errno, "stat %s failed", path);
+
+	if (major(buf.st_rdev) != TTY_MAJOR)
+		error(1, 0, "invalid tty device: %s", path);
+
+	wl->ttynr = minor(buf.st_rdev);
+
+	if (tcgetattr(wl->tty, &wl->terminal_attributes) < 0)
+		error(1, errno, "could not get terminal attributes");
+
+	/* Ignore control characters and disable echo */
+	raw_attributes = wl->terminal_attributes;
+	cfmakeraw(&raw_attributes);
+
+	/* Fix up line endings to be normal (cfmakeraw hoses them) */
+	raw_attributes.c_oflag |= OPOST | OCRNL;
+	/* Don't generate ttou signals */
+	raw_attributes.c_oflag &= ~TOSTOP;
+
+	if (tcsetattr(wl->tty, TCSANOW, &raw_attributes) < 0)
+	        error(1, errno, "could not put terminal into raw mode");
+
+	ioctl(wl->tty, KDGKBMODE, &wl->kb_mode);
+	ok = ioctl(wl->tty, KDSKBMODE, K_OFF);
+	if (ok < 0) {
+		ok = ioctl(wl->tty, KDSKBMODE, K_RAW);
+		if (ok < 0)
+			error(1, errno, "failed to set keyboard mode on tty");
+	}
+
+	ok = ioctl(wl->tty, KDSETMODE, KD_GRAPHICS);
+	if (ok < 0)
+		error(1, errno, "failed to set KD_GRAPHICS mode on tty");
+
+	wl->vt_state = VT_HAS_VT;
+	mode.mode = VT_PROCESS;
+	mode.relsig = SIGUSR1;
+	mode.acqsig = SIGUSR1;
+	ok = ioctl(wl->tty, VT_SETMODE, &mode);
+	if (ok < 0)
+		error(1, errno, "failed to take control of vt handling");
+
+	return 0;
+}
+
+static void
+drop_privileges(struct weston_launch *wl)
+{
+	if (setgid(wl->pw->pw_gid) < 0 ||
+#ifdef HAVE_INITGROUPS
+	    initgroups(wl->pw->pw_name, wl->pw->pw_gid) < 0 ||
+#endif
+	    setuid(wl->pw->pw_uid) < 0)
+		error(1, errno, "dropping privileges failed");
+}
+
+static void
+launch_compositor(struct weston_launch *wl, int argc, char *argv[])
+{
+	char command[PATH_MAX];
+	char *child_argv[MAX_ARGV_SIZE];
+	sigset_t mask;
+	int i;
+
+	if (wl->verbose)
+		printf("weston-launch: spawned weston with pid: %d\n", getpid());
+
+	drop_privileges(wl);
+
+	setenv_fd("WESTON_LAUNCHER_SOCK", wl->sock[1]);
+	setenv("LD_LIBRARY_PATH", LIBDIR, 1);
+	unsetenv("DISPLAY");
+
+	/* Do not give our signal mask to the new process. */
+	sigemptyset(&mask);
+	sigaddset(&mask, SIGTERM);
+	sigaddset(&mask, SIGCHLD);
+	sigaddset(&mask, SIGINT);
+	sigaddset(&mask, SIGUSR1);
+	sigprocmask(SIG_UNBLOCK, &mask, NULL);
+
+	snprintf (command, PATH_MAX, "%s \"$@\"", argv[0]);
+
+	child_argv[0] = wl->pw->pw_shell;
+	child_argv[1] = "-l";
+	child_argv[2] = "-c";
+	child_argv[3] = command;
+	for (i = 0; i < argc; ++i)
+		child_argv[4 + i] = argv[i];
+	child_argv[4 + i] = NULL;
+
+	execv(child_argv[0], child_argv);
+	error(1, errno, "exec failed");
+}
+
+static void
+help(const char *name)
+{
+	fprintf(stderr, "Usage: %s [args...] [-- [weston args..]]\n", name);
+	fprintf(stderr, "  -u, --user      Start session as specified username\n");
+	fprintf(stderr, "  -v, --verbose   Be verbose\n");
+	fprintf(stderr, "  -h, --help      Display this help message\n");
+}
+
+int
+main(int argc, char *argv[])
+{
+	struct weston_launch wl;
+	int i, c;
+	struct option opts[] = {
+		{ "verbose", no_argument,       NULL, 'v' },
+		{ "help",    no_argument,       NULL, 'h' },
+		{ 0,         0,                 NULL,  0  }
+	};	
+
+	memset(&wl, 0, sizeof wl);
+
+	while ((c = getopt_long(argc, argv, "u:t::vh", opts, &i)) != -1) {
+		switch (c) {
+		case 'v':
+			wl.verbose = 1;
+			break;
+		case 'h':
+			help("weston-launch");
+			exit(EXIT_FAILURE);
+		}
+	}
+
+	if ((argc - optind) > (MAX_ARGV_SIZE - 6))
+		error(1, E2BIG, "Too many arguments to pass to weston");
+
+	if (strcmp (argv[optind], "mutter-wayland") &&
+	    strcmp (argv[optind], "gnome-shell-wayland"))
+	  error(1, 0, "mutter-launch can only be used to launch mutter or gnome-shell");
+
+	wl.pw = getpwuid(getuid());
+	if (wl.pw == NULL)
+		error(1, errno, "failed to get username");
+
+	if (!weston_launch_allowed(&wl))
+		error(1, 0, "Permission denied. You must run from an active and local (systemd) session.");
+
+	if (setup_tty(&wl) < 0)
+		exit(EXIT_FAILURE);
+
+	if (setup_launcher_socket(&wl) < 0)
+		exit(EXIT_FAILURE);
+
+	if (setup_signals(&wl) < 0)
+		exit(EXIT_FAILURE);
+
+	wl.child = fork();
+	if (wl.child == -1) {
+		error(1, errno, "fork failed");
+		exit(EXIT_FAILURE);
+	}
+
+	if (wl.child == 0)
+		launch_compositor(&wl, argc - optind, argv + optind);
+
+	close(wl.sock[1]);
+
+	while (1) {
+		struct pollfd fds[2];
+		int n;
+
+		fds[0].fd = wl.sock[0];
+		fds[0].events = POLLIN;
+		fds[1].fd = wl.signalfd;
+		fds[1].events = POLLIN;
+
+		n = poll(fds, 2, -1);
+		if (n < 0)
+			error(0, errno, "poll failed");
+		if (fds[0].revents & POLLIN)
+			handle_socket_msg(&wl);
+		if (fds[1].revents)
+			handle_signal(&wl);
+	}
+
+	return 0;
+}

src/wayland/weston-launch.h

@@ -0,0 +1,59 @@
+/*
+ * Copyright © 2012 Benjamin Franzke
+ *             2013 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of the copyright holders not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission.  The copyright holders make
+ * no representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+ * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _WESTON_LAUNCH_H_
+#define _WESTON_LAUNCH_H_
+
+enum weston_launcher_opcode {
+	WESTON_LAUNCHER_OPEN,
+	WESTON_LAUNCHER_DRM_SET_MASTER,
+	WESTON_LAUNCHER_ACTIVATE_VT,
+	WESTON_LAUNCHER_CONFIRM_VT_SWITCH, 
+};
+
+enum weston_launcher_server_opcode {
+	WESTON_LAUNCHER_SERVER_REQUEST_VT_SWITCH,
+	WESTON_LAUNCHER_SERVER_VT_ENTER,
+};
+
+struct weston_launcher_message {
+	int opcode;
+};
+
+struct weston_launcher_open {
+	struct weston_launcher_message header;
+	int flags;
+	char path[0];
+};
+
+struct weston_launcher_set_master {
+	struct weston_launcher_message header;
+	int set_master;
+};
+
+struct weston_launcher_activate_vt {
+	struct weston_launcher_message header;
+	int vt;
+};
+
+#endif

src/xrandr.xml

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