Bump version to 3.11.92

Update NEWS.

.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
@@ -46,16 +46,16 @@ POTFILES
 po/*.pot
 50-metacity-desktop-key.xml
 50-metacity-key.xml
-libmutter.pc
-mutter
-mutter-theme-viewer
-mutter.desktop
+libmutter-wayland.pc
+mutter-wayland
+mutter-launch
 org.gnome.mutter.gschema.valid
 org.gnome.mutter.gschema.xml
+org.gnome.mutter.wayland.gschema.valid
+org.gnome.mutter.wayland.gschema.xml
 testasyncgetprop
 testboxes
 testgradient
-m4/*
 mutter-grayscale
 mutter-mag
 mutter-message
@@ -78,6 +78,12 @@ src/stamp-mutter-marshal.h
 src/meta-dbus-xrandr.[ch]
 src/meta-dbus-idle-monitor.[ch]
 src/mutter-plugins.pc
+src/gtk-shell-protocol.c
+src/gtk-shell-server-protocol.h
+src/xdg-shell-protocol.c
+src/xdg-shell-server-protocol.h
+src/xserver-protocol.c
+src/xserver-server-protocol.h
 doc/reference/*.args
 doc/reference/*.bak
 doc/reference/*.hierarchy
@@ -95,3 +101,10 @@ doc/reference/meta-undocumented.txt
 doc/reference/meta-unused.txt
 doc/reference/meta-docs.sgml
 doc/reference/meta.types
+gtk-doc.m4
+intltool.m4
+libtool.m4
+ltoptions.m4
+ltsugar.m4
+ltversion.m4
+lt~obsolete.m4

AUTHORS

@@ -1 +0,0 @@
-Havoc Pennington <hp@redhat.com>

COMPLIANCE

@@ -1,159 +0,0 @@
-Metacity Standards Compliance
-=============================
-$Id$
-
-1) Introduction
-2) EWMH Compliance
-  a. Root Window Properties
-  b. Root Window Messages
-  c. Application Window Properties
-  d. Window Manager Protocols
-3) ICCCM Compliance
-
-1) Introduction
----------------
-
-This document details metacity compliance with the relevent standards.
-The format of this document is as follows:
-
-[-/+?] Hint Name/Feature Name (Version number)
-       Errata/Comments
-
-The first character indicates the level of compliance as follows:
-    -   none
-    /   partial
-    +   complete
-    ?   unknown
-
-The title indicates a feature or a hint in the specification, and the
-version number indicates the minimum version of the specification
-supported by metacity.  Later versions may be supported if no
-incompatible changes have been made in the specification.
-
-2) EWMH Compliance
-------------------
-
-The EWMH, or Extended Window Manager Hints is a freedesktop.org-
-developed standard to support a number of conventions for
-communication between the window manager and clients.  It builds on
-and extends the ICCCM (See Section 3).  A copy of the current EWMH
-standard is available at http://freedesktop.org/Standards/wm-spec/
-
-  a. Root Window Properties
-  -------------------------
-
-+ _NET_SUPPORTED (1.3)
-
-+ _NET_CLIENT_LIST (1.3)
-
-+ _NET_NUMBER_OF_DESKTOPS (1.3)
-
-+ _NET_DESKTOP_GEOMETRY (1.3)
-  Metacity does not implement large desktops, so this is kept set to
-  the screen size.
-
-+ _NET_DESKTOP_VIEWPORT (1.3)
-  Metacity does not implement viewports, so this is a constant (0,0).
-
-+ _NET_CURRENT_DESKTOP (1.3)
-
-+ _NET_DESKTOP_NAMES (1.3)
-
-+ _NET_ACTIVE_WINDOW (1.3)
-
-+ _NET_WORKAREA (1.3)
-
-+ _NET_SUPPORTING_WM_CHECK (1.3)
-
-+ _NET_VIRTUAL_ROOTS (1.3)
-  Metacity does not read or set this property, but it does not use
-  virtual roots to implement virtual desktops, so it complies with the
-  specification.
-
-+ _NET_DESKTOP_LAYOUT (1.3)
-
-+ _NET_SHOWING_DESKTOP (1.3)
-
-  b. Root Window Messages
-  -----------------------
-
-+ _NET_CLOSE_WINDOW (1.3)
-
-- _NET_MOVERESIZE_WINDOW (1.3)
-  Metacity supports this message, but the specification is unclear on
-  the layout of the detail value, and as such it is #if 0'd in the code
-
-+ _NET_WM_MOVERESIZE (1.3)
-
-- _NET_RESTACK_WINDOW (1.3)
-  Metacity will raise or lower windows in response to this message,
-  but the sibling restack modes are not supported, and it is currently
-  #if 0'd in the code.
-
-+ _NET_REQUEST_FRAME_EXTENTS (1.3)  
-
-  c. Application Window Properties
-  --------------------------------
-
-+ _NET_WM_NAME (1.3)
-
-+ _NET_WM_VISIBLE_NAME (1.3)
-  Metacity does not set this property, but metacity will never display
-  a name different from _NET_WM_NAME
-
-+ _NET_WM_ICON_NAME (1.3)
-
-+ _NET_WM_VISIBLE_ICON_NAME (1.3)
-  Metacity does not set this property, but metacity will never display
-  a name different from _NET_WM_NAME
-
-+ _NET_WM_DESKTOP (1.3)
-
-+ _NET_WM_WINDOW_TYPE (1.3)
-
-/ _NET_WM_STATE (1.3)
-  This property is read and updated according to the specification,
-  but see caveat below.
-  Metacity does not recognize separate vertical and horizontal
-  maximization states.  Currently metacity will do a two-dimensional
-  maximization if either property is set.
-  See: http://bugzilla.gnome.org/show_bug.cgi?id=113601
-  Metacity doesn't implement viewports so _NET_WM_STATE_STICKY is
-  unimplemented.
-
-+ _NET_WM_ALLOWED_ACTIONS (1.3)
-  Metacity keeps this hint up to date.  The code is somewhat crufty
-  and should be rewritten, though it is functional.
-  See: http://bugzilla.gnome.org/show_bug.cgi?id=90420
-
-+ _NET_WM_STRUT (1.3)
-
-+ _NET_WM_STRUT_PARTIAL (1.3)
-
-+ _NET_WM_ICON_GEOMETRY (1.3)
-  Metacity uses this property to draw minimize/restore animations
-
-+ _NET_WM_ICON (1.3)
-
-+ _NET_WM_PID (1.3)
-
-+ _NET_WM_HANDLED_ICONS (1.3)
-  Metacity does not read or set this property.  However, metacity
-  never manages iconified windows, and so has no need to do so.
-
-+ _NET_WM_USER_TIME (1.3)
-  Metacity uses this property to prevent applications from stealing
-  focus if supported by the toolkit.
-
-+ _NET_FRAME_EXTENTS (1.3)
-  If set in response to a _NET_REQUEST_FRAME_EXTENTS message received
-  prior to the window being mapped, this may be an estimate.  This is,
-  however, expressly allowed by the specification.
-
-  d. Window Manager Protocols
-  ---------------------------
-+ _NET_WM_PING (1.3)
-
-3) ICCCM Compliance
--------------------
-TODO

HACKING

@@ -1,298 +0,0 @@
-Intro...
-
-Window managers have a few ways in which they are significantly different
-from other applications.  This file, combined with the code overview in
-doc/code-overview.txt, should hopefully provide a series of relatively
-quick pointers (hopefully only a few minutes each) to some of the places
-one can look to orient themselves and get started.  Some of this will be
-general to window managers on X, much will be specific to Metacity, and
-there's probably some information that's common to programs in general but
-is nonetheless useful.
-
-Overview
-  Administrative issues
-  Minimal Building/Testing Environment
-  Relevant standards and X properties
-  Debugging and testing
-    Debugging logs
-    Adding information to the log
-    Valgrind
-    Testing Utilities
-  Technical gotchas to keep in mind
-  Other important reading
-    Extra reading
-    Ideas for tasks to work on
-
-
-Administrative issues
-  Don't commit substantive code in here without asking hp@redhat.com.
-  Adding translations, no-brainer typo fixes, etc. is fine.
-
-  The code could use cleanup in a lot of places, feel free to do so.
-
-  See http://developer.gnome.org/dotplan/for_maintainers.html for
-  information on how to make a release.  The only difference from those
-  instructions is that the minor version number of a Metacity release
-  should always be a number from the Fibonacci sequence.
-
-Minimal Building/Testing Environment
-  You do not need to _install_ a development version of Metacity to
-  build, run and test it; you can run it from some temporary
-  directory.  Also, you do not need to build all of Gnome in order to
-  build a development version of Metacity -- odds are, you may be able
-  to build metacity from CVS without building any other modules.
-
-  As long as you have gtk+ >= 3.0 and GIO >= 2.25.10 with your distro
-  (gtk+ >= 2.6 if you manually revert the change from bug 348633), you
-  should be able to install your distro's development packages
-  (e.g. gtk2-devel, glib-devel, startup-notification-devel on
-  Fedora; also, remember to install the gnome-common package which is
-  needed for building cvs versions of Gnome modules like Metacity) as
-  well as the standard development tools (gcc, autoconf, automake,
-  pkg-config, intltool, and libtool) and be ready to build and test
-  Metacity.  Steps to do so:
-
-  $ svn checkout http://svn.gnome.org/svn/metacity/trunk metacity
-  $ cd metacity
-  $ ./autogen.sh --prefix /usr
-  $ make
-  $ ./src/metacity --replace
-
-  Again, note that you do not need to run 'make install'.
-
-Relevant standards and X properties
-  There are two documents that describe some basics about how window
-  managers should behave: the ICCCM (Inter-Client Communication Conventions
-  Manual) and EWMH (Extended Window Manager Hints).  You can find these at
-  the following locations:
-    ICCCM - http://tronche.com/gui/x/icccm/
-    EWMH  - :pserver:anoncvs@pdx.freedesktop.org:/cvs
-  The ICCCM is usually available in RPM or DEB format as well.  There is
-  actually an online version of the EWMH, but it is almost always woefully
-  out of date.  Just get it from cvs with these commands (the backslash
-  means include the stuff from the next line):
-    cvs -d :pserver:anoncvs@cvs.freedesktop.org:/cvs/icccm-extensions login
-    cvs -d :pserver:anoncvs@cvs.freedesktop.org:/cvs/icccm-extensions \
-      checkout wm-spec
-
-  DO NOT GO AND READ THOSE THINGS.  THEY ARE REALLY, REALLY BORING.
-
-  If you do, you'll probably end up catching up on your sleep instead of
-  hacking on Metacity. ;-)  Instead, just look at the table of contents and
-  glance at a page or two to get an idea of what's in there.  Then only
-  refer to it if you see something weird in the code and you don't know
-  what it is but has some funny looking name like you see in one of those
-  two documents.
-
-  You can refer to the COMPLIANCE file for additional information on these
-  specifications and Metacity's compliance therewith.
-
-  One of the major things those documents cover that are useful to learn
-  about immediately are X properties.  The right way to learn about those,
-  though, is through hand on experimentation with the xprop command (and
-  then look up things you find from xprop in those two manuals if you're
-  curious enough).  First, try running
-    xprop
-  in a terminal and click on one of the windows on your screen.  That gives
-  you the x properties for that window.  Look through them and get a basic
-  idea of what's there for kicks.  Note that you can get rid of some of the
-  verboseness by grepping out the _NET_WM_ICON stuff, i.e.
-    xprop | grep -v _NET_WM_ICON
-  Next, try running
-    xprop -root
-  in a terminal.  There's all the properties of the root window (which you
-  can think of as the "main" Xserver window).  You can also manually
-  specify individual windows that you want the properties of with
-    xprop -id <id>
-  if you know the id of the window in question.  You can get the id of a
-  given window by either running xwininfo, e.g.
-    xwininfo | grep "Window id" | cut -f 4 -d ' '
-  or by looking at the _NET_CLIENT_STACKING property of the root
-  window.  Finally, it can also be useful to add "-spy" (without the
-  quotes) to the xprop command to get it to continually monitor that
-  window and report any changes to you.
-
-Debugging information
-  Trying to run a window manager under a typical debugger, such as gdb,
-  unfortunately just doesn't work very well.  So, we have to resort to
-  other methods.
-
-  Debugging logs
-
-  First, note that you can start a new version of metacity to replace the
-  existing one by running
-    metacity --replace
-  (which also comes in handy in the form "./src/metacity --replace" when
-  trying to quickly test a small change while hacking on metacity without
-  doing a full "make install", though I'm going off topic...)  This will
-  allow you to see any warnings printed at the terminal.  Sometimes it's
-  useful to have these directed to a logfile instead, which you can do by
-  running
-    METACITY_USE_LOGFILE=1 metacity --replace
-  The logfile it uses will be printed in the terminal.  Sometimes, it's
-  useful to get more information than just warnings.  You can set
-  METACITY_VERBOSE to do that, like so:
-    METACITY_VERBOSE=1 METACITY_USE_LOGFILE=1 metacity --replace
-  (note that METACITY_VERBOSE=1 can be problematic without
-  METACITY_USE_LOGFILE=1; avoid it unless running in from something that
-  won't be managed by the new Metacity--see bug 305091 for more details).
-  There are also other flags, such as METACITY_DEBUG, most of which I
-  haven't tried and don't know what they do.  Go to the source code
-  directory and run
-    grep "METACITY_" * | grep getenv
-  to find out what the other ones are.
-
-  Adding information to the log
-
-  Since we can't single step with a debugger, we often have to fall back to
-  the primitive method of getting information we want to know: adding
-  "print" statements.  Metacity has a fairly structured way to do this,
-  using the functions meta_warning, meta_topic, and meta_verbose.  All
-  three have the same basic format as printf, except that meta_topic also
-  takes a leading enumeration parameter to specify the type of message
-  being shown (makes it easier for grepping in a verbose log).  You'll find
-  tons of examples in the source code if you need them; just do a quick
-  grep or look in most any file.  Note that meta_topic and meta_verbose
-  messages only appear if verbosity is turned on.  I tend to frequently add
-  temporary meta_warning statements (or switch meta_topic or meta_verbose
-  ones to meta_warning ones) and then undo the changes once I've learned
-  the info that I needed.
-
-  There is also a meta_print_backtrace (which again is only active if
-  verbosity is turned on) that can also be useful if you want to learn how
-  a particular line of code gets called.  And, of course, there's always
-  g_assert if you want to make sure some section isn't executed (or isn't
-  executed under certain conditions).
-
-  Valgrind
-
-  Valgrind is awesome for finding memory leaks or corruption and
-  uninitialized variables.  But I also tend to use it in a non-traditional
-  way as a partial substitute for a normal debugger: it can provide me with
-  a stack trace of where metacity is crashing if I made a change that
-  caused it to do so, which is one of the major uses of debuggers.  (And,
-  what makes it cooler than a debugger is that there will also often be
-  warnings pinpointing the cause of the crash from either some kind of
-  simple memory corruption or an uninitialized variable).  Sometimes, when
-  I merely want to know what is calling a particular function I'll just
-  throw in an "int i; printf("%d\n", i);" just because valgrind will give
-  me a full stacktrace whenever it sees that uninitialized variable being
-  used (yes, I could use meta_print_backtrace, but that means I have to
-  turn verbosity on).
-
-  To run metacity under valgrind, use options typical for any Gnome
-  program, such as
-    valgrind --log-file=metacity.log --tool=memcheck --num-callers=48 \
-    --leak-check=yes --leak-resolution=high --show-reachable=yes     \
-    ./src/metacity --replace
-  where, again, the backslashes mean to join all the stuff on the following
-  line with the previous one.
-
-  However, there is a downside.  Things run a little bit slowly, and it
-  appears that you'll need about 1.5GB of ram, which unfortunately prevents
-  most people from trying this.
-
-  Testing Utilities
-
-  src/run-metacity.sh
-    The script src/run-metacity.sh is useful to hack on the window manager. 
-    It runs metacity in an Xnest. e.g.:
-      CLIENTS=3 ./run-metacity.sh
-    or 
-      DEBUG=memprof ./run-metacity.sh
-    or
-      DEBUG_TEST=1 ./run-metacity-sh
-    or whatever.
-
-  metacity-message
-    The tool metacity-message can be used as follows:
-      metacity-message reload-theme
-      metacity-message restart
-      metacity-message enable-keybindings
-      metacity-message disable-keybindings
-    The first of these is useful for testing themes, the second is just
-    another way (besides the --restart flag to metacity itself) of
-    restarting metacity, and the third is useful for testing Metacity when
-    running it under an Xnest (typically, the Metacity under the Xnest
-    wouldn't get keybinding notifications--making keyboard navigation not
-    work--but if you disable the keybindings for the global Metacity then
-    the Metacity under the Xnest can then get those keybinding notifications).
-
-  metacity-window-demo
-    metacity-window-demo is good for trying behavior of various kinds
-    of window without launching a full desktop.
-
-Technical gotchas to keep in mind
-  Files that include gdk.h or gtk.h are not supposed to include
-  display.h or window.h or other core files.  Files in the core
-  (display.[hc], window.[hc]) are not supposed to include gdk.h or
-  gtk.h.  Reasons:
-
-    "Basically you don't want GDK most of the time. It adds
-    abstractions that cause problems, because they aren't designed to
-    be used in a WM where we do weird stuff (display grabs, and just
-    being the WM). At best GDK adds inefficiency, at worst it breaks
-    things in weird ways where you have to be a GDK guru to figure
-    them out. Owen also told me that they didn't want to start adding
-    a lot of hacks to GDK to let a WM use it; we both agreed back in
-    the mists of time that metacity would only use it for the "UI"
-    bits as it does.
-
-    Having the split in the source code contains and makes very clear
-    the interface between the WM and GDK/GTK. This keeps people from
-    introducing extra GDK/GTK usage when it isn't needed or
-    appropriate. Also, it speeds up the compilation a bit, though this
-    was perhaps more relevant 5 years ago than it is now.
-
-    There was also a very old worry that the GDK stuff might have to
-    be in a separate process to work right; that turned out to be
-    untrue. Though who knows what issues the CM will introduce."
-
-  Remember that strings stored in X properties are not in UTF-8, and they
-  have to end up in UTF-8 before we try putting them through Pango.
-
-  If you make any X request involving a client window, you have to
-  meta_error_trap_push() around the call; this is not necessary for X
-  requests on the frame windows.
-
-  Remember that not all windows have frames, and window->frame can be NULL.
-
-Other important reading & where to get started
-  Extra reading
-
-  There are some other important things to read to get oriented as well.
-  These are:
-    http://pobox.com/~hp/features.html
-    rationales.txt
-    doc/code-overview.txt
-
-  It pays to read http://pobox.com/~hp/features.html in order
-  to understand the philosophy of Metacity.
-
-  The rationales.txt file has two things: (1) a list of design choices with
-  links in the form of bugzilla bugs that discuss the issue, and (2) a list
-  outstanding bug categories, each of which is tracked by a particular
-  tracker bug in bugzilla from which you can find several closely related
-  bug reports.
-
-  doc/code-overview.txt provides a fairly good overview of the code,
-  including coverage of the function of the various files, the main
-  structures and their relationships, and places to start looking in the
-  code tailored to general categories of tasks.
-
-  Ideas for tasks to work on
-
-  There are a variety of things you could work on in the code.  You may
-  have ideas of your own, but in case you don't, let me provide a list of
-  ideas you could choose from:
-
-  If you're ambitious, there's a list of things Havoc made that he'd really
-  like to see tackled, which you can find at
-  http://log.ometer.com/2004-05.html.  Be sure to double check with someone
-  to make sure the item is still relevant if you're interested in one of
-  these.  Another place to look for ideas, of course, is bugzilla.  One can
-  just do queries and look for things that look fixable.
-
-  However, perhaps the best way of getting ideas of related tasks to work
-  on, is to look at the second half of the rationales.txt file, which tries
-  to group bugs by type.

MAINTAINERS

@@ -1,8 +0,0 @@
-Tomas Frydrych
-Email: tf linux intel com
-Userid: tomasf
-
-Owen Taylor
-Email: otaylor redhat com
-Userid: otaylor
-

METACITY_MAINTAINERS

@@ -1,43 +0,0 @@
-Currently active maintainers
---------------------------------
-
-Elijah Newren
-Email: newren gmail com
-Userid: newren
-
-  - Usually won't touch the theme bugs (isn't interested) or the
-    compositor (until open source nvidia drivers are up to snuff).
-    Tends to be most interested in libwnck/gtk interactions, focus
-    issues, constraints problems, and raising/stacking, but works on
-    just about anything other than themes and the compositor.
-
-Thomas Thurman
-Email: thomas thurman org uk
-Userid: tthurman
-
-  - Responsible for all theme bugs and the compositor (thank goodness
-    Thomas got involved, eh?).  I'm sure he'll replace this sentence
-    with his interests when he reads it.  ;-)
-
-
-Semi-active maintainers
---------------------------------
-
-Havoc Pennington
-Email: hp  redhat com
-Userid: hp
-  - Original author.  Doesn't patch metacity anymore, but is active in
-    answering questions, responding to bugs, providing very helpful
-    suggestions and insight, and even assisting with debugging.
-
-
-Important historical figureheads
---------------------------------
-
-Rob Adams (readams  readams net)
-  - Was the main maintainer of metacity for a while; particular areas
-    of focus included xinerama, placement, and an older version of the
-    constraints code.  Still responds to bugs every once in a while.
-
-Søren Sandmann (sandmann  redhat com)
-  - Wrote most of the current compositing manager code + libcm

Makefile.am

@@ -1,10 +1,6 @@
 
 SUBDIRS=src po doc
 
-ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
-
-EXTRA_DIST = HACKING MAINTAINERS rationales.txt
-
 DISTCLEANFILES = intltool-extract intltool-merge intltool-update po/stamp-it po/.intltool-merge-cache
 
 DISTCHECK_CONFIGURE_FLAGS = --enable-gtk-doc

NEWS

@@ -1,46 +1,13 @@
-3.12.2
-======
-* Fix in-fullscreen state when moving between monitors [Florian; #728395]
-* Fix crash when monitors change during suspend [Giovanni; #725637]
-* Misc. bug fixes [Florian, Giovanni; #728423, #729732]
-
-Contributors:
-  Giovanni Campagna, Florian Müllner
-
-Translations:
-  Christian Kirbach [de], Pau Iranzo [ca]
-
-3.12.1
-======
-* Fix opacity values from _NET_WM_WINDOW_OPACITY [Nirbheek; #727874]
-* Misc. cleanups [Jasper; #720631]
-
-Contributors:
-  Nirbheek Chauhan, Jasper St. Pierre
-
-Translations:
-  Inaki Larranaga Murgoitio [eu], marablack3 [el]
-
-3.12.0
-======
-
-Translations:
-  Ask H. Larsen [da], Мирослав Николић [sr, sr@latin], Andika Triwidada [id],
-  Daniel Korostil [uk], Petr Kovar [cs]
-
 3.11.92
 =======
 * Fix identification of CSD windows [Owen; #723029]
-* Add minimal handling of touch events [Carlos; #723552]
-* Misc bug fixes and cleanups [Owen, Adel, Jasper; #723580, #726352]
+* Update keyboard state unconditionally [Rui; #722847]
+* Misc bug fixes and cleanups [Owen, Rui, Giovanni, Matthias, Adel, Ryan,
+  Jasper, Marek, Florian; #723580, #726123, #726683]
 
 Contributors:
-  Adel Gadllah, Carlos Garnacho, Rui Matos, Jasper St. Pierre, Owen W. Taylor
-
-Translations:
-  Changwoo Ryu [ko], Rūdolfs Mazurs [lv], Wylmer Wang [zh_CN],
-  Chao-Hsiung Liao [zh_HK, zh_TW], Yuri Myasoedov [ru], Tiagosdot [pt],
-  Claude Paroz [fr], Duarte Loreto [pt], A S Alam [pa]
+  Giovanni Campagna, Marek Chalupa, Matthias Clasen, Adel Gadllah, Ryan Lortie,
+  Rui Matos, Florian Müllner, Jasper St. Pierre, Owen W. Taylor
 
 3.11.91
 =======
@@ -49,125 +16,104 @@ Translations:
 * Improve keybinding lookups [Rui; #725588]
 * Fix dynamic updates of titlebar style properties [Owen; #725751]
 * Fix positioning of manually positioned windows [Owen; #724049]
-* Misc. bug fixes [Carlos, Giovanni, Florian, Jasper; #724969, #724402, #722266,
-  #725338]
+* Misc bug fixes and cleanups [Jasper, Carlos, Adel, Giovanni, Florian; #720631,
+  #724969, #725216, #724402, #722266, #725338, #725525]
 
 Contributors:
   Giovanni Campagna, Adel Gadllah, Carlos Garnacho, Rui Matos, Florian Müllner,
-  Jasper St. Pierre
-
-Translations:
-  Aurimas Černius [lt], Milo Casagrande [it], Balázs Úr [hu],
-  Matej Urbančič [sl], Enrico Nicoletto [pt_BR], Yosef Or Boczko [he],
-  Piotr Drąg [pl], Fran Diéguez [gl]
+  Jasper St. Pierre, Owen W. Taylor
 
 3.11.90
 =======
-* Use correct output property for backlight control [Robert; #723606]
 * Fix double-scaling on high DPI resolutions [Adel; #723931]
 * Make tile previews a compositor effect [Stefano, Florian; #665758]
-* Misc. bug fixes and cleanups [Ryan, Giovanni, Jasper; #722530, #724257,
-  #724258, #724364, #720631, #707851, #707897]
+* Misc. bug fixes and cleanups [Ryan, Giovanni, Jasper, Adel; #722530, #724257,
+  #724258, #720631, #724364, #724472]
 
 Contributors:
-  Robert Ancell, Giovanni Campagna, Stefano Facchini, Adel Gadllah,
+  Giovanni Campagna, Marek Chalupa, Stefano Facchini, Adel Gadllah,
   Ryan Lortie, Florian Müllner, Jasper St. Pierre, Rico Tzschichholz
 
-Translations:
-  Shankar Prasad [kn], Khaled Hosny [ar], Marek Černocký [cs],
-  Kjartan Maraas [nb], Daniel Korostil [uk]
-
 3.11.5
 ======
 * Fix CSD titlebars being placed off-screen [Jasper; #719772]
+* Add support for subsurfaces [Jonas; #705502]
 * Expose MetaWindow:skip-taskbar property [Florian; #723307]
 * Fix legacy tray icons showing up blank [Adel; #721596]
 * Fix configuration of cloned monitors [Adel; #710610]
-* Misc bug fixes and cleanups [Jasper, Adel, Jonas; #720631, #723468, #723563]
+* Misc bug fixes and cleanups [Jasper, Adel, Marek, Jonas; #720631, #723468,
+  #720818, #723563, #723564]
 
 Contributors:
   Jonas Ådahl, Marek Ch, Adel Gadllah, Florian Müllner, Jasper St. Pierre
 
-Translations:
-  Rafael Ferreira [pt_BR], Enrico Nicoletto [pt_BR], Fran Diéguez [gl],
-  Chao-Hsiung Liao [zh_HK, zh_TW]
-
 3.11.4
 ======
 * Don't leave focus on windows that are being unmanaged [Owen; #711618]
 * Reduce server grabs [Daniel Drake; #721345, #721709]
 * Improve heuristic to determine display output name [Cosimo Cecchi; #721674]
 * Atomically unmaximize both directions [Jasper; #722108]
-* Misc bug fixes [Debarshi, Andika; #721517, #721674]
+* Misc bug fixes [Debarshi, Andika, Florian; #721517, #721674, #722347]
 
 Contributors:
-  Cosimo Cecchi, Daniel Drake, Debarshi Ray, Jasper St. Pierre,
+  Cosimo Cecchi, Daniel Drake, Florian Müllner, Debarshi Ray, Jasper St. Pierre,
   Andika Triwidada, Owen W. Taylor
 
-Translations:
-  Rafael Ferreira [pt_BR], Dimitris Spingos [el], Daniel Mustieles [es],
-  Milo Casagrande [it], Yosef Or Boczko [he]
-
 3.11.3
 ======
-* xrandr: Use "hotplug_mode_update" property [Marc-André; #711216]
-* Fix position of attached dialogs for CSD windows [Giovanni, Owen; #707194]
-* Fix focus issues with external OSKs [Jasper; #715030]
+* Fix focus issues with external OSKs[Jasper; #715030]
 * Add a MetaCullable interface [Jasper; #714706]
+* Fix window keybindings [Rui; #719724]
+* Fix settings keyboard/pointer focus for new clients [Rui; #719725]
 * Fix window group paint volume [Owen; #719669]
 * Fix frame extents problems [Owen; #714707]
 * Add shortcut to move windows between monitors [Florian; #671054]
 * Fix problems with focus tracking [Owen; #720558]
-* Misc. bug fixes and cleanups [Rui, Jasper, Owen; #712833, #678989, #720106,
-  #720417, #720630]
+* Misc. bug fixes and cleanups: [Rui, Colin, Lionel, Jasper, Owen; #712833,
+  #719557, #719695, #719833, #678989, #720417, #720630]
 
 Contributors:
-  Robert Bragg, Giovanni Campagna, Marc-André Lureau, Rui Matos, Alberto Milone,
-  Florian Müllner, Sindhu S, Jasper St. Pierre, Rico Tzschichholz,
-  Owen W. Taylor
-
-Translations:
-  甘露(Gan  Lu) [zh_CN], Khaled Hosny [ar]
+  Lionel Landwerlin, Rui Matos, Alberto Milone, Florian Müllner,
+  Jasper St. Pierre, Rico Tzschichholz, Owen W. Taylor, Colin Walters
 
 3.11.2
 ======
+* Support setting a NULL opaque region [Andreas; #711518]
+* Sync keymap from X to wayland [Giovanni; #707446]
+* Implement support for subsurfaces [Jonas; #705502]
+* Don't focus the no-focus-window for globally active windows [Jasper; #710296]
+* Support "hotplug_mode_update" property [Marc-André; #711216]
 * Fix resize operations using mouse-button-modifier [Lionel; #710251]
-* Misc. fixes and cleanups [Jasper, Rico, Florian; #711731]
+* Fix position of attached modals for CSD windows [Giovanni, Owen; #707194]
+* Misc. bug fixes [Rui, Jasper, Neil, Florian; #712247, #711731]
 
 Contributors:
-  Lionel Landwerlin, Florian Müllner, Jasper St. Pierre, Rico Tzschichholz
+  Giovanni Campagna, Andreas Heider, Lionel Landwerlin, Marc-André Lureau,
+  Rui Matos, Florian Müllner, Neil Roberts, Sindhu S, Jasper St. Pierre,
+  Rico Tzschichholz, Owen W. Taylor, Jonas Ådahl
 
 3.11.1
 ======
-* Don't require at least one output device to be connected [Giovanni; #709009]
-* Name the guard window [Andrew; #710346]
+* Fix tile previews getting stuck on right click during drags [Lionel; #704759]
 * Use new UPower API [Bastien]
+* Set hot spot when cursor set from wl_buffer [Jonas; #709593]
 * Expose min-backlight-step [Asad; #710380]
-* Don't focus the no-focus-window for globally active windows [Jasper; #710296]
-* Misc. fixes and cleanups [Jasper, Rico, Olav, Magdalen; #709776]
+* Misc. bug fixes and cleanups [Jasper, Olav, Magdalen; #709776]
 
 Contributors:
-  Magdalen Berns, Giovanni Campagna, Asad Mehmood, Bastien Nocera,
-  Jasper St. Pierre, Rico Tzschichholz, Olav Vitters, Andrew Walton
-
-Translations:
-  Reinout van Schouwen [nl]
+  Magdalen Berns, Lionel Landwerlin, Asad Mehmood, Bastien Nocera,
+  Jasper St. Pierre, Olav Vitters, Jonas Ådahl
 
 3.10.1
 ======
 * Don't apply fullscreen workarounds to CSD windows [Giovanni; #708718]
 * Fix hangs during DND operations [Adel; #709340]
-* Use nearest-pixel interpolation when possible [Hans; #708389]
-* Fix tile previews getting stuck on right click during drags [Lionel; #704759]
-* Misc bug fixes [Giovanni, Jasper; #708420]
+* Misc bug fixes [Dan, Giovanni, Jasper; #708813, #708420]
 
 Contributors:
-  Giovanni Campagna, Adel Gadllah, Lionel Landwerlin, Hans Petter Jansson,
+  Giovanni Campagna, Adel Gadllah, Dan Horák, Hans Petter Jansson,
   Jasper St. Pierre
 
-Translations:
-  Khaled Hosny [ar], Reinout van Schouwen [nl], Carles Ferrando [ca@valencia]
-
 3.10.0.1
 ========
 * Fix bug when a window changed size twice in a single frame - this
@@ -178,24 +124,32 @@ Contributors:
 
 3.10.0
 ======
-
-Translations:
-  Ask H. Larsen [da], Gabor Kelemen [hu], Duarte Loreto [pt],
-  Yosef Or Boczko [he]
+* Update dependencies [Giovanni; #708210]
 
 3.9.92
 ======
-* Don't create a dummy texture for the texture pipeline template [Neil; #707458]
-* Remove holes generated by disabling the laptop lid [Giovanni; #707473]
-* https://bugzilla.gnome.org/show_bug.cgi?id=707474 [Giovanni; #707474]
+* Constrain the pointer position onto visible monitors [Giovanni; #706655]
+* Fix keyboard state handling in face of event compression [Giovanni; #706963]
+* Extend the MetaCursorTracker API with query pointer and cursor visibility [Giovanni; #707474]
+* Be stricter in checking and exposing the wayland protocol version [#707851]
 * Don't require plugins to pass event to Clutter [Giovanni; #707482]
+* Move the --wayland option from the binary to the library [Giovanni; #707897]
+* Implement running from gnome-session (environment variable setting, process group
+  handling, Clutter backend variables) [Giovanni; #706421]
 * Add support for more cursor types [Giovanni; #707919]
+* Drop man pages for removed utilities [Kalev; #706579]
+* Implement monitor configuration on KMS [Giovanni; #706308]
+* Implement HW cursors [Giovanni; #707573]
+* Implement minimal support for resizing and maximizing wayland clients [Giovanni; #707401]
+* Implement transient hints for wayland clients [Giovanni; #707401]
+* Implement popup menu surfaces and grabs [Giovanni; #707863]
 * Immediately fire idle watches that are already expired [Giovanni; #707302]
-* Misc bug fixes [Giovanni, Colin, Pavel; #707649, #707563, #708070]
+* Remove holes generated by disabling the laptop lid [Giovanni; #707473]
+* Misc bug fixes [Giovanni, Pavel, Adel; #707649, #706124, #707584, #707851, #707929,
+  #708070]
 
 Contributors:
-  Giovanni Campagna, Adel Gadllah, Colin Guthrie, Neil Roberts,
-  Jasper St. Pierre, Ray Strode, Pavel Vasin
+  Adel Gadllah, Giovanni Campagna, Kalev Lember, Pavel Vasin
 
 Translations:
   Мирослав Николић po/sr, sr@latin.po, Мирослав Николић [sr, sr@latin],
@@ -208,19 +162,30 @@ Translations:
 3.9.91
 ======
 * Drop man pages for removed utilities [Kalev; #706579]
-* Add support for idle tracking [Giovanni; #706005]
+* Add support for idle tracking [Giovanni, Cosimo; #706005, #707250]
 * Skip CRTC reconfigurations that have no effect [Giovanni; #706672]
 * Ignore skip-taskbar hints on parentless dialogs [Giovanni; #673399]
 * Don't save pixbuf data in user data [Tim; #706777]
 * Don't queue redraws for obscured regions [Adel; #703332]
-* Turn blending off when drawing entirely opaque regions [Jasper; #706930]
+* Suppor the opaque region hints for wayland clients [Jasper; #707019]
+* Turn blending off when drawing entirely opaque regions [Jasper; #707019]
 * Check event timestamps before reconfiguring [Giovanni; #706735]
+* Merge the DBus API for display configuration in the wayland branch [Giovanni]
+* Install an X IO error handler for XWayland [Giovanni; #706962]
+* Use the clutter xkbcommon integration for the wayland keyboard [Giovanni; #705862]
+* Add a setuid helper for running on KMS+evdev [Giovanni, Colin; #705861]
+* Add keybindings for switching VT [Giovanni; #705861]
+* Implement plugin modality when running as a wayland compositor [Giovanni; #705917]
+* Add support for the application menu for wayland clients [Giovanni; #707128]
+* Several Coverity spotted fixes [Jasper]
+* Don't create a dummy texture for the texture template [Neil; #707458]
+* Use a more conservative paint volume for obscured windows [Adel]
 * Misc bug fixes [Giovanni, Colin, Seán, Jasper, Cosimo; #706582, #706598,
-  #706787, #706729, #706825, #707081, #707090, #707250, #707267]
+  #706787, #706729, #706825, #707081, #707090, #707267, #706982, #706289]
 
 Contributors:
   Giovanni Campagna, Cosimo Cecchi, Adel Gadllah, Colin Guthrie, Kalev Lember,
-  Tim Lunn, Jasper St. Pierre, Rico Tzschichholz, Seán de Búrca
+  Tim Lunn, Jasper St. Pierre, Neil Roberts, Rico Tzschichholz, Seán de Búrca
 
 Translations:
   Piotr Drąg [pl], Alexandre Franke [fr], Kjartan Maraas [nb],
@@ -229,6 +194,8 @@ Translations:
 
 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]
@@ -243,8 +210,8 @@ Translations:
 
 Contributors:
   Robert Bragg, Giovanni Campagna, Alban Crequy, Adel Gadllah,
-  Alexander Larsson, Florian Müllner, Jasper St. Pierre, Rico Tzschichholz,
-  Colin Walters
+  Alexander Larsson, Florian Müllner, Jasper St. Pierre, Neil Roberts,
+  Rico Tzschichholz, Colin Walters
 
 Translations:
   Jiro Matsuzawa [ja], Kjartan Maraas [nb], Matej Urbančič [sl],

README

@@ -1,416 +0,0 @@
-The original codebase named "Metacity" is not a meta-City as in an
-urban center, but rather Meta-ness as in the state of being
-meta. i.e. metacity : meta as opacity : opaque. Also it may have
-something to do with the Meta key on UNIX keyboards.
-
-Since then, it has been renamed mutter after a rebase on top of
-clutter as a compositing manager.
-
-COMPILING MUTTER
-===
-
-You need GTK+ 2.2.  For startup notification to work you need
-libstartup-notification at
-http://www.freedesktop.org/software/startup-notification/ or on the
-GNOME ftp site.
-You need Clutter 1.0. You need gobject-introspection 0.6.3.
-
-REPORTING BUGS AND SUBMITTING PATCHES
-===
-
-Report new bugs on http://bugzilla.gnome.org. Please check for
-duplicates, *especially* if you are reporting a feature request. 
-
-Please do *not* add "me too!" or "yes I really want this!" comments to
-feature requests in bugzilla. Please read
-http://pobox.com/~hp/features.html prior to adding any kind of flame
-about missing features or misfeatures.
-
-Feel free to send patches too; Metacity is relatively small and
-simple, so if you find a bug or want to add a feature it should be
-pretty easy.  Send me mail, or put the patch in bugzilla.
-
-See the HACKING file for some notes on hacking Mutter.
-
-MUTTER FEATURES
-===
-
- - Uses GTK+ 2.0 for drawing window frames. This means colors, fonts, 
-   etc. come from GTK+ theme.
-
- - Does not expose the concept of "window manager" to the user.  Some
-   of the features in the GNOME control panel and other parts of the
-   desktop happen to be implemented in metacity, such as changing your
-   window border theme, or changing your window navigation shortcuts,
-   but the user doesn't need to know this.
-
- - Includes only the window manager; does not try to be a desktop
-   environment. The pager, configuration, etc. are all separate and
-   modular. The "libwnck" library (which I also wrote) is available
-   for writing metacity extensions, pagers, and so on. (But libwnck
-   isn't metacity specific, or GNOME-dependent; it requires only GTK,
-   and should work with KWin, fvwm2, and other EWMH-compliant WMs.)
-
- - Has a simple theme system and a couple of extra themes come with it.
-   Change themes via gsettings:
-     gsettings set org.gnome.desktop.wm.preferences theme Crux
-     gsettings set org.gnome.desktop.wm.preferences theme Gorilla
-     gsettings set org.gnome.desktop.wm.preferences theme Atlanta
-     gsettings set org.gnome.desktop.wm.preferences theme Bright
-
-   See theme-format.txt for docs on the theme format. Use 
-   metacity-theme-viewer to preview themes.
-
- - Change number of workspaces via gsettings:
-     gsettings set org.gnome.desktop.wm.preferences num-workspaces 5
-
-   Can also change workspaces from GNOME 2 pager.
-
- - Change focus mode:
-     gsettings set org.gnome.desktop.wm.preferences focus-mode mouse
-     gsettings set org.gnome.desktop.wm.preferences focus-mode sloppy
-     gsettings set org.gnome.desktop.wm.preferences focus-mode click
-
- - Global keybinding defaults include:   
-
-    Alt-Tab                forward cycle window focus
-    Alt-Shift-Tab          backward cycle focus
-    Alt-Ctrl-Tab           forward cycle focus among panels
-    Alt-Ctrl-Shift-Tab     backward cycle focus among panels
-    Alt-Escape             cycle window focus without a popup thingy
-    Ctrl-Alt-Left Arrow    previous workspace
-    Ctrl-Alt-Right Arrow   next workspace
-    Ctrl-Alt-D             minimize/unminimize all, to show desktop
-
-   Change keybindings for example:
-
-     gsettings set org.gnome.desktop.wm.keybindings switch-to-workspace-1 '[<Alt>F1]'
-   
-   Also try the GNOME keyboard shortcuts control panel.
-
- - Window keybindings:
-
-    Alt-space         window menu
-
-    Mnemonics work in the menu. That is, Alt-space then underlined
-    letter in the menu item works.
-
-    Choose Move from menu, and arrow keys to move the window.
-
-    While moving, hold down Control to move slower, and 
-      Shift to snap to edges.
-
-    Choose Resize from menu, and nothing happens yet, but 
-      eventually I might implement something.
-
-    Keybindings for things like maximize window, vertical maximize,
-    etc. can be bound, but may not all exist by default. See
-    metacity.schemas.
-
- - Window mouse bindings:
-
-    Clicking anywhere on frame with button 1 will raise/focus window
-    
-    If you click a window control, such as the close button, then the 
-     control will activate on button release if you are still over it
-     on release (as with most GUI toolkits)
-
-    If you click and drag borders with button 1 it resizes the window
-    
-    If you click and drag the titlebar with button 1 it moves the 
-     window.
-
-    If you click anywhere on the frame with button 2 it lowers the 
-     window.
-
-    If you click anywhere on the frame with button 3 it shows the 
-     window menu.
-
-    If you hold down Super (windows key) and click inside a window, it
-     will move the window (buttons 1 and 2) or show menu (button 3).
-     Or you can configure a different modifier for this.
-
-    If you pick up a window with button 1 and then switch workspaces
-     the window will come with you to the new workspace, this is 
-     a feature copied from Enlightenment.
-
-    If you hold down Shift while moving a window, the window snaps
-     to edges of other windows and the screen.
-
- - Session management:
-
-    Mutter connects to the session manager and will set itself up to
-     be respawned. It theoretically restores sizes/positions/workspace
-     for session-aware applications.
-
- - Mutter implements much of the EWMH window manager specification
-   from freedesktop.org, as well as the older ICCCM.  Please refer to
-   the COMPLIANCE file for information on mutter compliance with
-   these standards.
-
- - Uses Pango to render text, so has cool i18n capabilities. 
-   Supports UTF-8 window titles and such.
-
- - There are simple animations for actions such as minimization, 
-   to help users see what is happening. Should probably 
-   have a few more of these and make them nicer.
-
- - if you have the proper X setup, set the GDK_USE_XFT=1 
-   environment variable to get antialiased window titles.
-
- - considers the panel when placing windows and maximizing
-   them.
-
- - handles the window manager selection from the ICCCM. Will exit if
-   another WM claims it, and can claim it from another WM if you pass
-   the --replace argument. So if you're running another
-   ICCCM-compliant WM, you can run "mutter --replace" to replace it
-   with Metacity.
-
- - does basic colormap handling
-
- - and much more! well, maybe not a lot more.
-
-HOW TO ADD EXTERNAL FEATURES
-===
-
-You can write a mutter "plugin" such as a pager, window list, icon
-box, task menu, or even things like "window matching" using the
-Extended Window Manager Hints. See http://www.freedesktop.org for the
-EWMH specification. An easy-to-use library called "libwnck" is
-available that uses the EWMH and is specifically designed for writing
-WM accessories.
-
-You might be interested in existing accessories such as "Devil's Pie"
-by Ross Burton, which add features to Mutter (or other
-EWMH-compliant WMs).
-
-MUTTER BUGS, NON-FEATURES, AND CAVEATS
-===
-
-See bugzilla: http://bugzilla.gnome.org/query.cgi
-
-FAQ
-===
-
-Q: Will you add my feature?
-
-A: If it makes sense to turn on unconditionally, or is genuinely a
-   harmless preference that I would not be embarrassed to put in a
-   simple, uncluttered, user-friendly configuration dialog.
-
-   If the only rationale for your feature is that other window
-   managers have it, or that you are personally used to it, or
-   something like that, then I will not be impressed. Metacity is
-   firmly in the "choose good defaults" camp rather than the "offer 6
-   equally broken ways to do it, and let the user pick one" camp.
-
-   This is part of a "no crackrock" policy, despite some exceptions
-   I'm mildly embarrassed about. For example, multiple workspaces
-   probably constitute crackrock, they confuse most users and really
-   are not that useful if you have a decent tasklist and so on. But I
-   am too used to them to turn them off.  Or alternatively
-   iconification/tasklist is crack, and workspaces/pager are good. But
-   having both is certainly a bit wrong.  Sloppy focus is probably
-   crackrock too.
-
-   But don't think unlimited crack is OK just because I slipped up a
-   little. No slippery slope here.
-
-   Don't let this discourage patches and fixes - I love those. ;-)
-   Just be prepared to hear the above objections if your patch adds
-   some crack-ridden configuration option.
-
-   http://pobox.com/~hp/free-software-ui.html
-   http://pobox.com/~hp/features.html   
-
-Q: Will Mutter be part of GNOME?
-
-A: It is not officially part of GNOME as of GNOME 2.27. We are
-   hoping to have mutter officially included as of GNOME 2.28. 
-
-Q: Why does Mutter remember the workspace/position of some apps 
-   but not others across logout/login?
-
-A: Mutter only stores sizes/positions for apps that are session
-   managed. As far as I can determine, there is no way to attempt to
-   remember workspace/position for non-session-aware apps without
-   causing a lot of weird effects.
-
-   The reason is that you don't know which non-SM-aware apps were
-   launched by the session. When you initially log in, Metacity sees a
-   bunch of new windows appear. But it can't distinguish between
-   windows that were stored in your session, or windows you just
-   launched after logging in. If Metacity tried to guess that a window
-   was from the session, it could e.g. end up maximizing a dialog, or
-   put a window you just launched on another desktop or in a weird
-   place. And in fact I see a lot of bugs like this in window managers
-   that try to handle non-session-aware apps.
-
-   However, for session-aware apps, Mutter can tell that the
-   application instance is from the session and thus restore it
-   reliably, assuming the app properly restores the windows it had 
-   open on session save.
-   
-   So the correct way to fix the situation is to make apps
-   session-aware. libSM has come with X for years, it's very
-   standardized, it's shared by GNOME and KDE - even twm is
-   session-aware. So anyone who won't take a patch to add SM is more
-   archaic than twm - and you should flame them. ;-)
-
-   Docs on session management:
-    http://www.fifi.org/doc/xspecs/xsmp.txt.gz
-    http://www.fifi.org/doc/xspecs/SMlib.txt.gz
-
-   See also the ICCCM section on SM. For GNOME apps, use the
-   GnomeClient object. For a simple example of using libSM directly,
-   twm/session.c in the twm source code is pretty easy to understand.
-
-Q: How about adding viewports in addition to workspaces?
-
-A: I could conceivably be convinced to use viewports _instead_ of
-   workspaces, though currently I'm not thinking that. But I don't
-   think it makes any sense to have both; it's just confusing. They
-   are functionally equivalent.
-
-   You may think this means that you won't have certain keybindings, 
-   or something like that. This is a misconception. The only 
-   _fundamental_ difference between viewports and workspaces is that 
-   with viewports, windows can "overlap" and appear partially on 
-   one and partially on another. All other differences that
-   traditionally exist in other window managers are accidental - 
-   the features commonly associated with viewports can be implemented
-   for workspaces, and vice versa.
-
-   So I don't want to have two kinds of
-   workspace/desktop/viewport/whatever, but I'm willing to add
-   features traditionally associated with either kind if those
-   features make sense.
-
-Q: Why is the panel always on top?
-
-A: Because it's a better user interface, and until we made this not
-   configurable a bunch of apps were not getting fixed (the app
-   authors were just saying "put your panel on the bottom" instead of
-   properly supporting fullscreen mode, and such).
-
-   rationales.txt has the bugzilla URL for some flamefesting on this,
-   if you want to go back and relive the glory.
-   Read these and the bugzilla stuff before asking/commenting:
-     http://pobox.com/~hp/free-software-ui.html
-     http://pobox.com/~hp/features.html   
-
-Q: Why is there no edge flipping?
-
-A: This one is also in rationales.txt. Because "ouija board" UI, where
-   you just move the mouse around and the computer guesses what you
-   mean, has a lot of issues. This includes mouse focus, shade-hover
-   mode, edge flipping, autoraise, etc. Metacity has mouse focus and
-   autoraise as a compromise, but these features are all confusing for
-   many users, and cause problems with accessibility, fitt's law, and
-   so on.
-
-   Read these and the bugzilla stuff before asking/commenting:
-     http://pobox.com/~hp/free-software-ui.html
-     http://pobox.com/~hp/features.html   
-
-Q: Why does wireframe move/resize suck?
-
-A: You can turn it on with the reduced_resources setting.
-
-   But: it has low usability, and is a pain
-   to implement, and there's no reason opaque move/resize should be a
-   problem on any setup that can run a modern desktop worth a darn to
-   begin with.
-
-   Read these and the bugzilla stuff before asking/commenting:
-     http://pobox.com/~hp/free-software-ui.html
-     http://pobox.com/~hp/features.html   
-
-   The reason we had to add wireframe anyway was broken 
-   proprietary apps that can't handle lots of resize events.
-
-Q: Why no XYZ?
-
-A: You are probably getting the idea by now - check rationales.txt,
-   query/search bugzilla, and read http://pobox.com/~hp/features.html
-   and http://pobox.com/~hp/free-software-ui.html
-
-   Then sit down and answer the question for yourself.  Is the feature
-   good? What's the rationale for it? Answer "why" not just "why not."
-   Justify in terms of users as a whole, not just users like
-   yourself. How else can you solve the same problem? etc. If that
-   leads you to a strong opinion, then please, post the rationale for
-   discussion to an appropriate bugzilla bug, or to
-   usability@gnome.org.
-
-   Please don't just "me too!" on bugzilla bugs, please don't think
-   flames will get you anywhere, and please don't repeat rationale
-   that's already been offered.
-
-Q: Your dumb web pages you made me read talk about solving problems in
-   fundamental ways instead of adding preferences or workarounds.
-   What are some examples where metacity has done this?
-
-A: There are quite a few, though many opportunities remain.  Sometimes
-   the real fix involves application changes. The metacity approach is
-   that it's OK to require apps to change, though there are also
-   plenty of workarounds in metacity for battles considered too hard
-   to fight.
-
-   Here are some examples:
-
-   - fullscreen mode was introduced to allow position constraints,
-     panel-on-top, and other such things to apply to normal windows
-     while still allowing video players etc. to "just work"
-
-   - "whether to include minimized windows in Alt+Tab" was solved 
-     by putting minimized windows at the *end* of the tab order. 
-
-   - Whether to pop up a feedback display during Alt+Tab was solved by
-     having both Alt+Tab and Alt+Esc
-
-   - Whether to have a "kill" feature was solved by automatically
-     detecting and offering to kill stuck apps. Better, metacity
-     actually does "kill -9" on the process, it doesn't just
-     disconnect the process from the X server. You'll appreciate this
-     if you ever did a "kill" on Netscape 4, and watched it keep
-     eating 100% CPU even though the X server had booted it.
-
-   - The workspaces vs. viewports mess was avoided by adding
-     directional navigation and such to workspaces, see discussion
-     earlier in this file.
-
-   - Instead of configurable placement algorithms, there's just one 
-     that works fairly well most of the time.
-
-   - To avoid excess CPU use during opaque move/resize, we rate limit
-     the updates to the application window's size.
-
-   - Instead of configurable "show size of window while resizing,"
-     it's only shown for windows where it matters, such as terminals.
-     (Only use-case given for all windows is for web designers
-     choosing their web browser size, but there are web sites and
-     desktop backgrounds that do this for you.)
-
-   - Using startup notification, applications open on the workspace
-     where you launched them, not the active workspace when their
-     window is opened.
-
-   - and much more.
-
-Q: I think mutter sucks.
-
-A: Feel free to use any WM you like. The reason metacity follows the
-   ICCCM and EWMH specifications is that it makes metacity a modular,
-   interchangeable part in the desktop. libwnck-based apps such as the
-   GNOME window list will work just fine with any EWMH-compliant WM.
-
-Q: Did you spend a lot of time on this?
-
-A: Originally the answer was no. Sadly the answer is now yes.
-
-Q: How can you claim that you are anti-crack, while still 
-   writing a window manager?
-
-A: I have no comment on that.

configure.ac

@@ -2,8 +2,8 @@ AC_PREREQ(2.50)
 AC_CONFIG_MACRO_DIR([m4])
 
 m4_define([mutter_major_version], [3])
-m4_define([mutter_minor_version], [12])
-m4_define([mutter_micro_version], [2])
+m4_define([mutter_minor_version], [11])
+m4_define([mutter_micro_version], [92])
 
 m4_define([mutter_version],
           [mutter_major_version.mutter_minor_version.mutter_micro_version])
@@ -13,14 +13,17 @@ m4_define([mutter_plugin_api_version], [3])
 AC_INIT([mutter], [mutter_version],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=mutter])
 
-AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_SRCDIR(src/core/display.c)
 AC_CONFIG_HEADERS(config.h)
 
-AM_INIT_AUTOMAKE([1.11 no-dist-gzip dist-xz tar-ustar])
+AM_INIT_AUTOMAKE([1.11 foreign no-dist-gzip dist-xz tar-ustar])
 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])],)
 AM_MAINTAINER_MODE([enable])
 
+# Change pkglibdir and pkgdatadir to mutter-wayland instead of mutter
+PACKAGE="mutter-wayland"
+AC_SUBST([PACKAGE], [$PACKAGE])
+
 MUTTER_MAJOR_VERSION=mutter_major_version
 MUTTER_MINOR_VERSION=mutter_minor_version
 MUTTER_MICRO_VERSION=mutter_micro_version
@@ -36,7 +39,7 @@ 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])
 
@@ -69,13 +72,13 @@ CANBERRA_GTK_VERSION=0.26
 CLUTTER_PACKAGE=clutter-1.0
 
 MUTTER_PC_MODULES="
-   gtk+-3.0 >= 3.9.11
+   gtk+-3.0 >= 3.3.7
    gio-2.0 >= 2.25.10
    pango >= 1.2.0
    cairo >= 1.10.0
    gsettings-desktop-schemas >= 3.7.3
    xcomposite >= 0.2 xfixes xrender xdamage xi >= 1.6.0
-   $CLUTTER_PACKAGE >= 1.15.90
+   $CLUTTER_PACKAGE >= 1.17.5
    cogl-1.0 >= 1.17.1
    upower-glib >= 0.99.0
    gnome-desktop-3.0
@@ -117,11 +120,27 @@ AC_ARG_ENABLE(shape,
                  [disable mutter's use of the shaped window extension]),,
   enable_shape=auto)
 
+## Wayland support requires the xserver.xml protocol extension found in the weston
+## repository but since there aren't currently established conventions for
+## installing and discovering these we simply require a location to be given
+## explicitly...
+AC_ARG_WITH([wayland-protocols],
+            [AS_HELP_STRING([--with-wayland-protocols], [Location for wayland extension protocol specs])],
+            [
+            ],
+            [])
+
+AC_ARG_WITH([xwayland-path],
+            [AS_HELP_STRING([--with-xwayland-path], [Absolute path for an X Wayland server])],
+            [XWAYLAND_PATH="$withval"],
+            [XWAYLAND_PATH="$bindir/Xorg"])
+
 AM_GLIB_GNU_GETTEXT
 
 ## here we get the flags we'll actually use
 # GRegex requires Glib-2.14.0
 PKG_CHECK_MODULES(ALL, glib-2.0 >= 2.14.0)
+PKG_CHECK_MODULES(MUTTER_LAUNCH, libdrm libsystemd-login)
 
 # Unconditionally use this dir to avoid a circular dep with gnomecc
 GNOME_KEYBINDINGS_KEYSDIR="${datadir}/gnome-control-center/keybindings"
@@ -186,20 +205,15 @@ if test x$found_introspection != xno; then
   AC_SUBST(META_GIR)
 fi
 
-AC_MSG_CHECKING([Xcursor])
-if $PKG_CONFIG xcursor; then
-     have_xcursor=yes
-  else
-     have_xcursor=no
-  fi
-  AC_MSG_RESULT($have_xcursor)
+MUTTER_PC_MODULES="$MUTTER_PC_MODULES xcursor"
 
-if test x$have_xcursor = xyes; then
-  echo "Building with Xcursor"
-  MUTTER_PC_MODULES="$MUTTER_PC_MODULES xcursor"
-  AC_DEFINE(HAVE_XCURSOR, , [Building with Xcursor support])
-fi
+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 clutter-wayland-1.0 clutter-wayland-compositor-1.0 clutter-egl-1.0 wayland-server libdrm"
 PKG_CHECK_MODULES(MUTTER, $MUTTER_PC_MODULES)
 
 PKG_CHECK_EXISTS([xi >= 1.6.99.1],
@@ -437,8 +451,7 @@ 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
 po/Makefile.in
 ])
@@ -455,7 +468,7 @@ fi
 
 dnl ==========================================================================
 echo "
-mutter-$VERSION
+mutter-wayland-$VERSION
 
 	prefix:                   ${prefix}
 	source code location:	  ${srcdir}

doc/Makefile.am

@@ -1,4 +1,4 @@
 SUBDIRS = man reference
 
 EXTRA_DIST=theme-format.txt dialogs.txt code-overview.txt \
-	how-to-get-focus-right.txt
+	how-to-get-focus-right.txt rationales.txt

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

@@ -16,14 +16,14 @@ src/core/monitor.c
 src/core/mutter.c
 src/core/prefs.c
 src/core/screen.c
-src/core/session.c
+src/x11/session.c
 src/core/util.c
 src/core/window.c
-src/core/window-props.c
-src/core/xprops.c
-src/mutter.desktop.in
-src/mutter-wm.desktop.in
+src/x11/window-props.c
+src/x11/xprops.c
+src/mutter-wayland.desktop.in
 src/org.gnome.mutter.gschema.xml.in
+src/org.gnome.mutter.wayland.gschema.xml.in
 src/ui/frames.c
 src/ui/menu.c
 src/ui/metaaccellabel.c

po/sk.po

@@ -13,9 +13,9 @@ msgstr ""
 "Project-Id-Version: mutter\n"
 "Report-Msgid-Bugs-To: http://bugzilla.gnome.org/enter_bug.cgi?"
 "product=mutter&keywords=I18N+L10N&component=general\n"
-"POT-Creation-Date: 2013-08-21 17:41+0000\n"
-"PO-Revision-Date: 2013-08-02 14:46+0200\n"
-"Last-Translator: Ján Kyselica <kyselica.jan@gmail.com>\n"
+"POT-Creation-Date: 2013-05-24 21:44+0000\n"
+"PO-Revision-Date: 2013-05-18 16:53+0100\n"
+"Last-Translator: Jan Kyselica <kyselica.jan@gmail.com>\n"
 "Language-Team: Slovak <gnome-sk-list@gnome.org>\n"
 "Language: sk\n"
 "MIME-Version: 1.0\n"
@@ -87,8 +87,9 @@ msgstr "Prepnúť okná aplikácie"
 # PK: zisti co to robi
 # description
 #: ../src/50-mutter-navigation.xml.in.h:13
+#, fuzzy
 msgid "Switch system controls"
-msgstr "Prepnúť medzi ovládacími prvkami systému"
+msgstr "Prepnúť medzi systémovými ovládacími prvkami"
 
 # description
 #: ../src/50-mutter-navigation.xml.in.h:14
@@ -103,8 +104,9 @@ msgstr "Prepnúť okná aplikácie priamo"
 # MČ: podobne ako vyššie: „cycle-panels“
 # description
 #: ../src/50-mutter-navigation.xml.in.h:16
+#, fuzzy
 msgid "Switch system controls directly"
-msgstr "Prepnúť medzi ovládacími prvkami systému priamo"
+msgstr "Prepnúť medzi systémovými ovládacími prvkami priamo"
 
 # description
 #: ../src/50-mutter-navigation.xml.in.h:17
@@ -265,13 +267,13 @@ msgstr "Zobraziť rozdelenie napravo"
 # PK: je %i cislo obrazovky? ak ano tak "č. %i"
 #. This probably means that a non-WM compositor like xcompmgr is running;
 #. * we have no way to get it to exit
-#: ../src/compositor/compositor.c:596
-#, c-format
+#: ../src/compositor/compositor.c:571
+#, fuzzy, c-format
 msgid ""
 "Another compositing manager is already running on screen %i on display \"%s"
 "\"."
 msgstr ""
-"Pre obrazovku č. %i na displeji „%s“ je spustený už iný správca rozloženia."
+"Pre obrazovku %i na displeji „%s“ je spustený už iný správca rozloženia."
 
 #: ../src/compositor/meta-background.c:1076
 msgid "background texture could not be created from file"
@@ -311,18 +313,18 @@ msgstr "_Počkať"
 msgid "_Force Quit"
 msgstr "_Vynútiť ukončenie"
 
-#: ../src/core/display.c:421
+#: ../src/core/display.c:401
 #, c-format
 msgid "Missing %s extension required for compositing"
 msgstr "Rozšírenie %s, potrebné pre kompozitné prostredie, chýba"
 
 # X window system preloz, napr. system na spravu okien X
-#: ../src/core/display.c:513
+#: ../src/core/display.c:493
 #, c-format
 msgid "Failed to open X Window System display '%s'\n"
 msgstr "Zlyhalo otvorenie displeja systému na správu okien X „%s“\n"
 
-#: ../src/core/keybindings.c:1136
+#: ../src/core/keybindings.c:970
 #, c-format
 msgid ""
 "Some other program is already using the key %s with modifiers %x as a "
@@ -330,7 +332,7 @@ msgid ""
 msgstr ""
 "Iný program už používa kláves %s s modifikátormi %x ako klávesovú skratku\n"
 
-#: ../src/core/keybindings.c:1333
+#: ../src/core/keybindings.c:1151
 #, c-format
 msgid "\"%s\" is not a valid accelerator\n"
 msgstr "„%s“ nie je platný akcelerátor\n"
@@ -376,20 +378,6 @@ msgid ""
 msgstr ""
 "Nepodarilo sa nájsť tému! Overte, že %s existuje a obsahuje obvyklé témy.\n"
 
-#: ../src/core/monitor.c:702
-msgid "Built-in display"
-msgstr "Vstavaný displej"
-
-#. TRANSLATORS: this is a monitor name (in case we don't know
-#. the vendor), it's Unknown followed by a size in inches,
-#. like 'Unknown 15"'
-#.
-#: ../src/core/monitor.c:730
-#, c-format
-#| msgid "Unknown element %s"
-msgid "Unknown %s"
-msgstr "Neznámy %s"
-
 #: ../src/core/mutter.c:40
 #, c-format
 msgid ""
@@ -415,7 +403,7 @@ msgstr "Zobrazí verziu"
 msgid "Mutter plugin to use"
 msgstr "Použije zásuvný modul Mutter"
 
-#: ../src/core/prefs.c:1202
+#: ../src/core/prefs.c:1193
 msgid ""
 "Workarounds for broken applications disabled. Some applications may not "
 "behave properly.\n"
@@ -423,12 +411,12 @@ msgstr ""
 "Náhradné riešenia pre chybné aplikácie nie sú povolené. Niektoré aplikácie "
 "sa nemusia správať správne.\n"
 
-#: ../src/core/prefs.c:1277
+#: ../src/core/prefs.c:1268
 #, c-format
 msgid "Could not parse font description \"%s\" from GSettings key %s\n"
 msgstr "Nepodarilo sa spracovať popis písma „%s“ z kľúča GSettings %s\n"
 
-#: ../src/core/prefs.c:1343
+#: ../src/core/prefs.c:1334
 #, c-format
 msgid ""
 "\"%s\" found in configuration database is not a valid value for mouse button "
@@ -437,7 +425,7 @@ msgstr ""
 "V konfiguračnej databáze sa našlo „%s“, čo nie je platná hodnota pre "
 "modifikátor tlačidla myši\n"
 
-#: ../src/core/prefs.c:1909
+#: ../src/core/prefs.c:1881
 #, c-format
 msgid ""
 "\"%s\" found in configuration database is not a valid value for keybinding "
@@ -446,17 +434,17 @@ msgstr ""
 "V konfiguračnej databáze sa našlo „%s“, čo nie je platná hodnota pre "
 "klávesovú skratku „%s“\n"
 
-#: ../src/core/prefs.c:1999
+#: ../src/core/prefs.c:1945
 #, c-format
 msgid "Workspace %d"
 msgstr "Pracovný priestor č. %d"
 
-#: ../src/core/screen.c:537
+#: ../src/core/screen.c:691
 #, c-format
 msgid "Screen %d on display '%s' is invalid\n"
 msgstr "Obrazovka č. %d na displeji „%s“ nie je platná\n"
 
-#: ../src/core/screen.c:553
+#: ../src/core/screen.c:707
 #, c-format
 msgid ""
 "Screen %d on display \"%s\" already has a window manager; try using the --"
@@ -465,7 +453,7 @@ msgstr ""
 "Obrazovka č. %d na displeji „%s“ už má správcu okien. Skúste použiť prepínač "
 "--replace, aby sa aktuálny správca nahradil.\n"
 
-#: ../src/core/screen.c:580
+#: ../src/core/screen.c:734
 #, c-format
 msgid ""
 "Could not acquire window manager selection on screen %d display \"%s\"\n"
@@ -473,12 +461,12 @@ msgstr ""
 "Nepodarilo sa získať výber správcu okien pre obrazovku č. %d na displeji "
 "„%s“\n"
 
-#: ../src/core/screen.c:658
+#: ../src/core/screen.c:812
 #, c-format
 msgid "Screen %d on display \"%s\" already has a window manager\n"
 msgstr "Obrazovka č. %d na displeji „%s“ už má správcu okien\n"
 
-#: ../src/core/screen.c:850
+#: ../src/core/screen.c:998
 #, c-format
 msgid "Could not release screen %d on display \"%s\"\n"
 msgstr "Nepodarilo sa uvoľniť obrazovku č. %d na displeji „%s“\n"
@@ -554,7 +542,8 @@ msgstr "Zlyhalo otvorenie súboru so záznamom pomocou fdopen() %s: %s\n"
 msgid "Opened log file %s\n"
 msgstr "Otvorený súbor so záznamom %s\n"
 
-#: ../src/core/util.c:119
+#: ../src/core/util.c:119 ../src/tools/mutter-message.c:149
+#, c-format
 msgid "Mutter was compiled without support for verbose mode\n"
 msgstr "Mutter bol skompilovaný bez výpisu podrobností pri behu\n"
 
@@ -562,20 +551,20 @@ msgstr "Mutter bol skompilovaný bez výpisu podrobností pri behu\n"
 msgid "Window manager: "
 msgstr "Správca okien: "
 
-#: ../src/core/util.c:414
+#: ../src/core/util.c:412
 msgid "Bug in window manager: "
 msgstr "Chyba v správcovi okien: "
 
-#: ../src/core/util.c:445
+#: ../src/core/util.c:443
 msgid "Window manager warning: "
 msgstr "Varovanie správcu okien: "
 
-#: ../src/core/util.c:473
+#: ../src/core/util.c:471
 msgid "Window manager error: "
 msgstr "Chyba správcu okien: "
 
 #. first time through
-#: ../src/core/window.c:7533
+#: ../src/core/window.c:7505
 #, c-format
 msgid ""
 "Window %s sets SM_CLIENT_ID on itself, instead of on the WM_CLIENT_LEADER "
@@ -591,7 +580,7 @@ msgstr ""
 #. * MWM but not WM_NORMAL_HINTS are basically broken. We complain
 #. * about these apps but make them work.
 #.
-#: ../src/core/window.c:8257
+#: ../src/core/window.c:8229
 #, c-format
 msgid ""
 "Window %s sets an MWM hint indicating it isn't resizable, but sets min size "
@@ -601,7 +590,7 @@ msgstr ""
 "nastavuje minimálnu veľkosť %d x %d a maximálnu veľkosť %d x %d. To nedáva "
 "zmysel.\n"
 
-#: ../src/core/window-props.c:347
+#: ../src/core/window-props.c:318
 #, c-format
 msgid "Application set a bogus _NET_WM_PID %lu\n"
 msgstr "Aplikácia nastavila neplatné _NET_WM_PID %lu\n"
@@ -609,18 +598,18 @@ msgstr "Aplikácia nastavila neplatné _NET_WM_PID %lu\n"
 # PK: co je toto?
 # JK: nedokazem zistit
 # PM: vyžiadaj komentár od vývojárov, pomožeme aj ostatným prekladateľom
-#: ../src/core/window-props.c:463
+#: ../src/core/window-props.c:434
 #, fuzzy, c-format
 msgid "%s (on %s)"
 msgstr "%s (na %s)"
 
-#: ../src/core/window-props.c:1546
+#: ../src/core/window-props.c:1517
 #, c-format
 msgid "Invalid WM_TRANSIENT_FOR window 0x%lx specified for %s.\n"
 msgstr "Neplatné WM_TRANSIENT_FOR okno 0x%lx nastavené pre %s.\n"
 
 # MČ: zacykliť sa, alebo vytvoriť slučku.
-#: ../src/core/window-props.c:1557
+#: ../src/core/window-props.c:1528
 #, c-format
 msgid "WM_TRANSIENT_FOR window 0x%lx for %s would create loop.\n"
 msgstr "WM_TRANSIENT_FOR okno 0x%lx  pre %s môže vytvoriť slučku.\n"
@@ -708,9 +697,9 @@ msgid ""
 "vertically and resizes them horizontally to cover half of the available "
 "area. Dropping windows on the top screen edge maximizes them completely."
 msgstr ""
-"Ak je povolené, upustenie okien pri zvislých okrajoch obrazovky ich zvislo "
-"maximalizuje a vodorovná veľkosť sa zmení na polovicu dostupnej plochy. "
-"Upustenie okien pri vrchnom okraji obrazovky ich maximalizuje úplne."
+"Ak je povolené, upustenie okien pri zvislých okrajoch obrazovky ich "
+"zvislo maximalizuje a vodorovná veľkosť sa zmení na polovicu dostupnej "
+"plochy. Upustenie okien pri vrchnom okraji obrazovky ich maximalizuje úplne."
 
 # summary
 #: ../src/org.gnome.mutter.gschema.xml.in.h:7
@@ -746,8 +735,9 @@ msgstr ""
 # PM: ja by som dal Bez vyvovlávania tabulátorom
 # summary
 #: ../src/org.gnome.mutter.gschema.xml.in.h:11
+#, fuzzy
 msgid "No tab popup"
-msgstr "Bez vyvolávania tabulátorom"
+msgstr "Nepoužívať prekryvnú ponuku tabulátora"
 
 # MČ: Neviem, čo to presne má robiť, ale popis som pochopil inak. „…či sa má používať rozbaľovacia ponuka a zvýraznenie rámikom sa má vypnúť…“
 # description
@@ -816,104 +806,109 @@ msgstr "Vybrať okno z rozbaľovacej ponuky tabulátoru"
 msgid "Cancel tab popup"
 msgstr "Zrušit rozbaľovaciu ponuku tabulátoru"
 
+#: ../src/tools/mutter-message.c:123
+#, c-format
+msgid "Usage: %s\n"
+msgstr "Použitie: %s\n"
+
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:67
+#: ../src/ui/menu.c:69
 msgid "Mi_nimize"
 msgstr "Mi_nimalizovať"
 
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:69
+#: ../src/ui/menu.c:71
 msgid "Ma_ximize"
 msgstr "Ma_ximalizovať"
 
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:71
+#: ../src/ui/menu.c:73
 msgid "Unma_ximize"
 msgstr "Zrušiť ma_ximalizáciu"
 
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:73
+#: ../src/ui/menu.c:75
 msgid "Roll _Up"
 msgstr "_Zabaliť"
 
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:75
+#: ../src/ui/menu.c:77
 msgid "_Unroll"
 msgstr "_Rozbaliť"
 
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:77
+#: ../src/ui/menu.c:79
 msgid "_Move"
 msgstr "Pre_miestniť"
 
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:79
+#: ../src/ui/menu.c:81
 msgid "_Resize"
 msgstr "Zmeniť veľko_sť"
 
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:81
+#: ../src/ui/menu.c:83
 msgid "Move Titlebar On_screen"
 msgstr "Presunúť titulok na _obrazovku"
 
 #. separator
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:84 ../src/ui/menu.c:86
+#: ../src/ui/menu.c:86 ../src/ui/menu.c:88
 msgid "Always on _Top"
 msgstr "Vždy na_vrchu"
 
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:88
+#: ../src/ui/menu.c:90
 msgid "_Always on Visible Workspace"
 msgstr "Vž_dy na viditeľnom pracovnom priestore"
 
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:90
+#: ../src/ui/menu.c:92
 msgid "_Only on This Workspace"
 msgstr "_Len na tomto pracovnom priestore"
 
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:92
+#: ../src/ui/menu.c:94
 msgid "Move to Workspace _Left"
 msgstr "Presunúť na pracovný priestor vľav_o"
 
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:94
+#: ../src/ui/menu.c:96
 msgid "Move to Workspace R_ight"
 msgstr "Presunúť na pracovný priestor v_pravo"
 
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:96
+#: ../src/ui/menu.c:98
 msgid "Move to Workspace _Up"
 msgstr "Presunúť na pracovný priestor _hore"
 
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:98
+#: ../src/ui/menu.c:100
 msgid "Move to Workspace _Down"
 msgstr "Presunúť na pracovný priestor _dole"
 
 #. separator
 #. Translators: Translate this string the same way as you do in libwnck!
-#: ../src/ui/menu.c:102
+#: ../src/ui/menu.c:104
 msgid "_Close"
 msgstr "_Zavrieť"
 
-#: ../src/ui/menu.c:202
+#: ../src/ui/menu.c:204
 #, c-format
 msgid "Workspace %d%n"
 msgstr "Pracovná priestor %d%n"
 
-#: ../src/ui/menu.c:212
+#: ../src/ui/menu.c:214
 #, c-format
 msgid "Workspace 1_0"
 msgstr "Pracovný priestor 1_0"
 
-#: ../src/ui/menu.c:214
+#: ../src/ui/menu.c:216
 #, c-format
 msgid "Workspace %s%d"
 msgstr "Pracovný priestor %s%d"
 
-#: ../src/ui/menu.c:384
+#: ../src/ui/menu.c:397
 msgid "Move to Another _Workspace"
 msgstr "P_resunúť na iný pracovný priestor"
 
@@ -1071,21 +1066,21 @@ msgstr ""
 # MČ: Preformuloval by som koniec: „platné sú len znaky A-Za-z0-9-_“
 # PK: color_name je asi nejaky atribut, to sa nepreklada, ked tak do zatvorky
 #: ../src/ui/theme.c:1219
-#, c-format
+#, fuzzy, c-format
 msgid ""
 "Invalid character '%c' in color_name parameter of gtk:custom, only A-Za-z0-9-"
 "_ are valid"
 msgstr ""
-"V parametri color_name (názov farby) pre gtk:custom je neplatný znak „%c“, platné sú len "
+"V parametri názov_farby pre gtk:custom je neplatný znak „%c“, platné sú len "
 "znaky A-Za-z0-9-_"
 
 #: ../src/ui/theme.c:1233
-#, c-format
+#, fuzzy, c-format
 msgid ""
 "Gtk:custom format is \"gtk:custom(color_name,fallback)\", \"%s\" does not "
 "fit the format"
 msgstr ""
-"Formát Gtk:custom je  „gtk:custom(color_name,fallback)“, „%s“ tomu "
+"Formát Gtk:custom je  „gtk:custom(názov_farby,fallback)“, „%s“ tomu "
 "nezodpovedá"
 
 #: ../src/ui/theme.c:1278
@@ -1271,20 +1266,20 @@ msgid ""
 "Missing <frame state=\"%s\" resize=\"%s\" focus=\"%s\" style=\"whatever\"/>"
 msgstr "Chýbajúce <frame state=„%s“ resize=„%s“ focus=„%s“ style=„whatever“/>"
 
-#: ../src/ui/theme.c:5082
+#: ../src/ui/theme.c:5084
 #, c-format
 msgid "Failed to load theme \"%s\": %s\n"
 msgstr "Zlyhalo načítanie témy „%s“: %s\n"
 
 # PK: prvok?
 # JK: XML značka (XML tag)
-#: ../src/ui/theme.c:5218 ../src/ui/theme.c:5225 ../src/ui/theme.c:5232
-#: ../src/ui/theme.c:5239 ../src/ui/theme.c:5246
+#: ../src/ui/theme.c:5220 ../src/ui/theme.c:5227 ../src/ui/theme.c:5234
+#: ../src/ui/theme.c:5241 ../src/ui/theme.c:5248
 #, c-format
 msgid "No <%s> set for theme \"%s\""
 msgstr "Pre tému „%s“ nie je nastavená <%s>"
 
-#: ../src/ui/theme.c:5254
+#: ../src/ui/theme.c:5256
 #, c-format
 msgid ""
 "No frame style set for window type \"%s\" in theme \"%s\", add a <window "
@@ -1293,13 +1288,13 @@ msgstr ""
 "Pre typ okna „%s“ nie je sada štýlov v téme „%s“, pridajte prvok <window "
 "type=„%s“ style_set=„whatever“/>"
 
-#: ../src/ui/theme.c:5661 ../src/ui/theme.c:5723 ../src/ui/theme.c:5786
+#: ../src/ui/theme.c:5663 ../src/ui/theme.c:5725 ../src/ui/theme.c:5788
 #, c-format
 msgid ""
 "User-defined constants must begin with a capital letter; \"%s\" does not"
 msgstr "Používateľské konštanty musia začínať veľkým písmenom, „%s“ nezačína"
 
-#: ../src/ui/theme.c:5669 ../src/ui/theme.c:5731 ../src/ui/theme.c:5794
+#: ../src/ui/theme.c:5671 ../src/ui/theme.c:5733 ../src/ui/theme.c:5796
 #, c-format
 msgid "Constant \"%s\" has already been defined"
 msgstr "Konštanta „%s“ už je definovaná"
@@ -1402,7 +1397,7 @@ msgstr "<%s> musí uvádzať buď geometriu alebo rodiča, ktorý má geometriu"
 msgid "You must specify a background for an alpha value to be meaningful"
 msgstr "Ak má byť hodnota alpha zmysluplná, tak musíte vybrať nejaké pozadie"
 
-#  PM: asi atribút type
+# PM: asi atribút type
 # JK: https://bugzilla.gnome.org/show_bug.cgi?id=698123
 #: ../src/ui/theme-parser.c:1264
 #, fuzzy, c-format
@@ -1564,7 +1559,6 @@ msgid "\"%s\" is not a valid value for resize attribute"
 msgstr "„%s“ nie je platná hodnota pre atribút zmeny veľkosti"
 
 # PK: shaded states? to zatvorky daj popis co je resize
-# PM: skôr "pre stavy maximized (maximalizovaný)/shaded (zatienený)"
 #: ../src/ui/theme-parser.c:3147
 #, fuzzy, c-format
 msgid ""
@@ -1706,172 +1700,221 @@ msgstr "<%s> uvedený dvakrát pre túto tému"
 msgid "Failed to find a valid file for theme %s\n"
 msgstr "Zlyhalo nájdenie platného súboru pre tému%s\n"
 
-#~ msgid "Usage: %s\n"
-#~ msgstr "Použitie: %s\n"
+#: ../src/ui/theme-viewer.c:99
+msgid "_Windows"
+msgstr "_Okná"
 
-#~ msgid "_Windows"
-#~ msgstr "_Okná"
+#: ../src/ui/theme-viewer.c:100
+msgid "_Dialog"
+msgstr "_Dialógové okno"
 
-#~ msgid "_Dialog"
-#~ msgstr "_Dialógové okno"
+#: ../src/ui/theme-viewer.c:101
+msgid "_Modal dialog"
+msgstr "_Modálne dialógové okno"
 
-#~ msgid "_Modal dialog"
-#~ msgstr "_Modálne dialógové okno"
+#: ../src/ui/theme-viewer.c:102
+msgid "_Utility"
+msgstr "_Nástroje"
 
-#~ msgid "_Utility"
-#~ msgstr "_Nástroje"
-
-#~ msgid "_Splashscreen"
-#~ msgstr "Ú_vodná obrazovka"
+#: ../src/ui/theme-viewer.c:103
+msgid "_Splashscreen"
+msgstr "Ú_vodná obrazovka"
 
 # MČ: nie som si istý prekladom „dok“, nemal by to byť „panel“?
-#~ msgid "_Top dock"
-#~ msgstr "_Horný panel"
+#: ../src/ui/theme-viewer.c:104
+msgid "_Top dock"
+msgstr "_Horný panel"
 
-#~ msgid "_Bottom dock"
-#~ msgstr "_Spodný panel"
+#: ../src/ui/theme-viewer.c:105
+msgid "_Bottom dock"
+msgstr "_Spodný panel"
 
-#~ msgid "_Left dock"
-#~ msgstr "Ľ_avý panel"
+#: ../src/ui/theme-viewer.c:106
+msgid "_Left dock"
+msgstr "Ľ_avý panel"
 
-#~ msgid "_Right dock"
-#~ msgstr "_Pravý panel"
+#: ../src/ui/theme-viewer.c:107
+msgid "_Right dock"
+msgstr "_Pravý panel"
 
-#~ msgid "_All docks"
-#~ msgstr "_Všetky panely"
+#: ../src/ui/theme-viewer.c:108
+msgid "_All docks"
+msgstr "_Všetky panely"
 
-#~ msgid "Des_ktop"
-#~ msgstr "P_racovná plocha"
+#: ../src/ui/theme-viewer.c:109
+msgid "Des_ktop"
+msgstr "P_racovná plocha"
 
 # tooltip
-#~ msgid "Open another one of these windows"
-#~ msgstr "Otvorí ďalšie z týchto okien"
+#: ../src/ui/theme-viewer.c:115
+msgid "Open another one of these windows"
+msgstr "Otvorí ďalšie z týchto okien"
 
 # PK: prekladat to v uvodzovkach? nahlas bug
 # tooltip
 # JK: https://bugzilla.gnome.org/show_bug.cgi?id=698123
+#: ../src/ui/theme-viewer.c:117
 #, fuzzy
-#~ msgid "This is a demo button with an 'open' icon"
-#~ msgstr "Toto je ukážkové tlačidlo s ikonou „open“"
+msgid "This is a demo button with an 'open' icon"
+msgstr "Toto je ukážkové tlačidlo s ikonou „open“"
 
 # tooltip
 # JK: https://bugzilla.gnome.org/show_bug.cgi?id=698123
+#: ../src/ui/theme-viewer.c:119
 #, fuzzy
-#~ msgid "This is a demo button with a 'quit' icon"
-#~ msgstr "Toto je ukážkové tlačidlo s ikonou „quit“"
+msgid "This is a demo button with a 'quit' icon"
+msgstr "Toto je ukážkové tlačidlo s ikonou „quit“"
 
 # label
-#~ msgid "This is a sample message in a sample dialog"
-#~ msgstr "Toto je ukážková správa v ukážkovom dialógovom okne"
+#: ../src/ui/theme-viewer.c:248
+msgid "This is a sample message in a sample dialog"
+msgstr "Toto je ukážková správa v ukážkovom dialógovom okne"
 
 # PK: falosna
-#~ msgid "Fake menu item %d\n"
-#~ msgstr "Falošná položka ponuky č. %d\n"
+#: ../src/ui/theme-viewer.c:328
+#, c-format
+msgid "Fake menu item %d\n"
+msgstr "Falošná položka ponuky č. %d\n"
 
-#~ msgid "Border-only window"
-#~ msgstr "Okno len s okrajom"
+#: ../src/ui/theme-viewer.c:363
+msgid "Border-only window"
+msgstr "Okno len s okrajom"
 
-#~ msgid "Bar"
-#~ msgstr "Lišta"
+#: ../src/ui/theme-viewer.c:365
+msgid "Bar"
+msgstr "Lišta"
 
-#~ msgid "Normal Application Window"
-#~ msgstr "Normálne aplikačné okno"
+#: ../src/ui/theme-viewer.c:382
+msgid "Normal Application Window"
+msgstr "Normálne aplikačné okno"
 
-#~ msgid "Dialog Box"
-#~ msgstr "Dialógové okno"
+#: ../src/ui/theme-viewer.c:386
+msgid "Dialog Box"
+msgstr "Dialógové okno"
 
-#~ msgid "Modal Dialog Box"
-#~ msgstr "Modálne dialógové okno"
+#: ../src/ui/theme-viewer.c:390
+msgid "Modal Dialog Box"
+msgstr "Modálne dialógové okno"
 
-#~ msgid "Utility Palette"
-#~ msgstr "Paleta nástrojov"
+#: ../src/ui/theme-viewer.c:394
+msgid "Utility Palette"
+msgstr "Paleta nástrojov"
 
-#~ msgid "Torn-off Menu"
-#~ msgstr "Vypnúť ponuku"
+#: ../src/ui/theme-viewer.c:398
+msgid "Torn-off Menu"
+msgstr "Vypnúť ponuku"
 
-#~ msgid "Border"
-#~ msgstr "Okraj"
+#: ../src/ui/theme-viewer.c:402
+msgid "Border"
+msgstr "Okraj"
 
-#~ msgid "Attached Modal Dialog"
-#~ msgstr "Pričlenené modálne okno"
+#: ../src/ui/theme-viewer.c:406
+msgid "Attached Modal Dialog"
+msgstr "Pričlenené modálne okno"
 
-#~ msgid "Button layout test %d"
-#~ msgstr "Test rozloženia tlačidiel č. %d"
+#: ../src/ui/theme-viewer.c:737
+#, c-format
+msgid "Button layout test %d"
+msgstr "Test rozloženia tlačidiel č. %d"
 
 # PK: plural forms
 # JK: https://bugzilla.gnome.org/show_bug.cgi?id=697987
-#, fuzzy
-#~ msgid "%g milliseconds to draw one window frame"
-#~ msgstr "%g milisekúnd pre vykreslenie jedného rámca okna"
+#: ../src/ui/theme-viewer.c:766
+#, fuzzy, c-format
+msgid "%g milliseconds to draw one window frame"
+msgstr "%g milisekúnd pre vykreslenie jedného rámca okna"
 
-#~ msgid "Usage: metacity-theme-viewer [THEMENAME]\n"
-#~ msgstr "Použitie: metacity-theme-viewer [NÁZOVTÉMY]\n"
+#: ../src/ui/theme-viewer.c:811
+#, c-format
+msgid "Usage: metacity-theme-viewer [THEMENAME]\n"
+msgstr "Použitie: metacity-theme-viewer [NÁZOVTÉMY]\n"
 
-#~ msgid "Error loading theme: %s\n"
-#~ msgstr "Chyba pri načítavaní témy: %s\n"
+#: ../src/ui/theme-viewer.c:818
+#, c-format
+msgid "Error loading theme: %s\n"
+msgstr "Chyba pri načítavaní témy: %s\n"
 
 # PK: plural forms
 # JK: https://bugzilla.gnome.org/show_bug.cgi?id=697987
-#, fuzzy
-#~ msgid "Loaded theme \"%s\" in %g seconds\n"
-#~ msgstr "Téma „%s“ načítaná za %g sekúnd\n"
+#: ../src/ui/theme-viewer.c:824
+#, fuzzy, c-format
+msgid "Loaded theme \"%s\" in %g seconds\n"
+msgstr "Téma „%s“ načítaná za %g sekúnd\n"
 
 # PK: inde titulku, aky je rozdiel
-#~ msgid "Normal Title Font"
-#~ msgstr "Obyčajné písmo titulku"
+#: ../src/ui/theme-viewer.c:869
+msgid "Normal Title Font"
+msgstr "Obyčajné písmo titulku"
 
-#~ msgid "Small Title Font"
-#~ msgstr "Malé písmo titulku"
+#: ../src/ui/theme-viewer.c:875
+msgid "Small Title Font"
+msgstr "Malé písmo titulku"
 
-#~ msgid "Large Title Font"
-#~ msgstr "Veľké písmo titulku"
+#: ../src/ui/theme-viewer.c:881
+msgid "Large Title Font"
+msgstr "Veľké písmo titulku"
 
-#~ msgid "Button Layouts"
-#~ msgstr "Rozloženia tlačidiel"
+#: ../src/ui/theme-viewer.c:886
+msgid "Button Layouts"
+msgstr "Rozloženia tlačidiel"
 
-#~ msgid "Benchmark"
-#~ msgstr "Test rýchlosti"
+#: ../src/ui/theme-viewer.c:891
+msgid "Benchmark"
+msgstr "Test rýchlosti"
 
-#~ msgid "Window Title Goes Here"
-#~ msgstr "Sem príde názov okna"
+#: ../src/ui/theme-viewer.c:947
+msgid "Window Title Goes Here"
+msgstr "Sem príde názov okna"
 
 # PK: plural forms
 # JK: https://bugzilla.gnome.org/show_bug.cgi?id=697987
-#, fuzzy
-#~ msgid ""
-#~ "Drew %d frames in %g client-side seconds (%g milliseconds per frame) and "
-#~ "%g seconds wall clock time including X server resources (%g milliseconds "
-#~ "per frame)\n"
-#~ msgstr ""
-#~ "Vykreslených %d rámcov za %g sekúnd na strane klienta (%g milisekúnd na "
-#~ "rámec) a %g sekúnd celkového času vrátane zdrojov servera X (%g "
-#~ "milisekúnd na rámec)\n"
+#: ../src/ui/theme-viewer.c:1053
+#, fuzzy, c-format
+msgid ""
+"Drew %d frames in %g client-side seconds (%g milliseconds per frame) and %g "
+"seconds wall clock time including X server resources (%g milliseconds per "
+"frame)\n"
+msgstr ""
+"Vykreslených %d rámcov za %g sekúnd na strane klienta (%g milisekúnd na "
+"rámec) a %g sekúnd celkového času vrátane zdrojov servera X (%g milisekúnd "
+"na rámec)\n"
 
-#~ msgid "position expression test returned TRUE but set error"
-#~ msgstr "test výrazu polohy vrátil TRUE, ale nastavil chybu"
+#: ../src/ui/theme-viewer.c:1273
+msgid "position expression test returned TRUE but set error"
+msgstr "test výrazu polohy vrátil TRUE, ale nastavil chybu"
 
-#~ msgid "position expression test returned FALSE but didn't set error"
-#~ msgstr "test výrazu polohy vrátil FALSE, ale nenastavil chybu"
+#: ../src/ui/theme-viewer.c:1275
+msgid "position expression test returned FALSE but didn't set error"
+msgstr "test výrazu polohy vrátil FALSE, ale nenastavil chybu"
 
-#~ msgid "Error was expected but none given"
-#~ msgstr "Bola očakávaná chyba, ale žiadna nenastala"
+#: ../src/ui/theme-viewer.c:1279
+msgid "Error was expected but none given"
+msgstr "Bola očakávaná chyba, ale žiadna nenastala"
 
-#~ msgid "Error %d was expected but %d given"
-#~ msgstr "Bola očakávaná chyba %d, ale nastala %d"
+#: ../src/ui/theme-viewer.c:1281
+#, c-format
+msgid "Error %d was expected but %d given"
+msgstr "Bola očakávaná chyba %d, ale nastala %d"
 
-#~ msgid "Error not expected but one was returned: %s"
-#~ msgstr "Chyba nebola očakávaná, ale bola vrátená: %s"
+#: ../src/ui/theme-viewer.c:1287
+#, c-format
+msgid "Error not expected but one was returned: %s"
+msgstr "Chyba nebola očakávaná, ale bola vrátená: %s"
 
-#~ msgid "x value was %d, %d was expected"
-#~ msgstr "hodnota x bola %d, očakávaná bola %d"
+#: ../src/ui/theme-viewer.c:1291
+#, c-format
+msgid "x value was %d, %d was expected"
+msgstr "hodnota x bola %d, očakávaná bola %d"
 
-#~ msgid "y value was %d, %d was expected"
-#~ msgstr "hodnota y bola %d, očakávaná bola %d"
+#: ../src/ui/theme-viewer.c:1294
+#, c-format
+msgid "y value was %d, %d was expected"
+msgstr "hodnota y bola %d, očakávaná bola %d"
 
 # PK: plural forms
 # JK: https://bugzilla.gnome.org/show_bug.cgi?id=697987
-#, fuzzy
-#~ msgid ""
-#~ "%d coordinate expressions parsed in %g seconds (%g seconds average)\n"
-#~ msgstr ""
-#~ "%d výrazov pre súradnice analyzovaných za %g sekúnd (priemer %g sekúnd)\n"
+#: ../src/ui/theme-viewer.c:1359
+#, fuzzy, c-format
+msgid "%d coordinate expressions parsed in %g seconds (%g seconds average)\n"
+msgstr ""
+"%d výrazov pre súradnice analyzovaných za %g sekúnd (priemer %g sekúnd)\n"

src/Makefile.am

@@ -1,15 +1,17 @@
 # Flag build for parallelism; see https://savannah.gnu.org/patch/?6905
 .AUTOPARALLEL:
 
-lib_LTLIBRARIES = libmutter.la
+lib_LTLIBRARIES = libmutter-wayland.la
 
 SUBDIRS=compositor/plugins
 
 INCLUDES=								\
+	-DCLUTTER_ENABLE_COMPOSITOR_API					\
 	-DCLUTTER_ENABLE_EXPERIMENTAL_API				\
 	-DCOGL_ENABLE_EXPERIMENTAL_API					\
 	-DCOGL_ENABLE_EXPERIMENTAL_2_0_API                              \
 	$(MUTTER_CFLAGS)						\
+	-I$(top_builddir)						\
 	-I$(srcdir)							\
 	-I$(srcdir)/core						\
 	-I$(srcdir)/ui							\
@@ -27,17 +29,28 @@ INCLUDES=								\
 	-DMUTTER_PLUGIN_API_VERSION=$(MUTTER_PLUGIN_API_VERSION)	\
 	-DMUTTER_PKGLIBDIR=\"$(pkglibdir)\"				\
 	-DMUTTER_PLUGIN_DIR=\"@MUTTER_PLUGIN_DIR@\"			\
-	-DGETTEXT_PACKAGE=\"$(GETTEXT_PACKAGE)\"
+	-DGETTEXT_PACKAGE=\"$(GETTEXT_PACKAGE)\"			\
+	-DXWAYLAND_PATH='"@XWAYLAND_PATH@"'
 
 mutter_built_sources = \
-	$(dbus_idle_built_sources)	\
-	$(dbus_xrandr_built_sources)	\
-	mutter-enum-types.h		\
-	mutter-enum-types.c
+	$(dbus_idle_built_sources)		\
+	$(dbus_xrandr_built_sources)		\
+	mutter-enum-types.h 			\
+	mutter-enum-types.c			\
+	gtk-shell-protocol.c			\
+	gtk-shell-server-protocol.h		\
+	xdg-shell-protocol.c			\
+	xdg-shell-server-protocol.h		\
+	xserver-protocol.c			\
+	xserver-server-protocol.h
 
-libmutter_la_SOURCES =				\
-	core/async-getprop.c			\
-	core/async-getprop.h			\
+wayland_protocols = \
+	wayland/protocol/gtk-shell.xml		\
+	wayland/protocol/xdg-shell.xml		\
+	wayland/protocol/xserver.xml
+
+libmutter_wayland_la_SOURCES =			\
+	core/above-tab-keycode.c		\
 	core/barrier.c				\
 	meta/barrier.h				\
 	core/bell.c				\
@@ -65,7 +78,13 @@ 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-shaped-texture-private.h 	\
+	compositor/meta-surface-actor.c		\
+	compositor/meta-surface-actor.h		\
+	compositor/meta-surface-actor-x11.c	\
+	compositor/meta-surface-actor-x11.h	\
+	compositor/meta-surface-actor-wayland.c	\
+	compositor/meta-surface-actor-wayland.h	\
 	compositor/meta-texture-rectangle.c	\
 	compositor/meta-texture-rectangle.h	\
 	compositor/meta-texture-tower.c		\
@@ -86,7 +105,6 @@ libmutter_la_SOURCES =				\
 	meta/meta-shadow-factory.h		\
 	meta/meta-window-actor.h		\
 	meta/compositor-mutter.h 		\
-	core/above-tab-keycode.c		\
 	core/constraints.c			\
 	core/constraints.h			\
 	core/core.c				\
@@ -104,13 +122,6 @@ libmutter_la_SOURCES =				\
 	core/frame.h				\
 	ui/gradient.c				\
 	meta/gradient.h				\
-	core/group-private.h			\
-	core/group-props.c			\
-	core/group-props.h			\
-	core/group.c				\
-	meta/group.h				\
-	core/iconcache.c			\
-	core/iconcache.h			\
 	core/keybindings.c			\
 	core/keybindings-private.h		\
 	core/main.c				\
@@ -121,6 +132,7 @@ libmutter_la_SOURCES =				\
 	core/meta-xrandr-shared.h		\
 	core/monitor.c				\
 	core/monitor-config.c			\
+	core/monitor-kms.c			\
 	core/monitor-private.h			\
 	core/monitor-xrandr.c			\
 	core/mutter-Xatomtype.h			\
@@ -132,8 +144,6 @@ libmutter_la_SOURCES =				\
 	core/screen-private.h			\
 	meta/screen.h				\
 	meta/types.h				\
-	core/session.c				\
-	core/session.h				\
 	core/stack.c				\
 	core/stack.h				\
 	core/stack-tracker.c			\
@@ -141,15 +151,11 @@ libmutter_la_SOURCES =				\
 	core/util.c				\
 	meta/util.h				\
 	core/util-private.h			\
-	core/window-props.c			\
-	core/window-props.h			\
 	core/window.c				\
 	core/window-private.h			\
 	meta/window.h				\
 	core/workspace.c			\
 	core/workspace-private.h		\
-	core/xprops.c				\
-	core/xprops.h				\
 	meta/common.h				\
 	core/core.h				\
 	ui/ui.h					\
@@ -165,13 +171,52 @@ libmutter_la_SOURCES =				\
 	ui/theme.c				\
 	meta/theme.h				\
 	ui/theme-private.h			\
-	ui/ui.c
+	ui/ui.c					\
+	x11/iconcache.c				\
+	x11/iconcache.h				\
+	x11/async-getprop.c			\
+	x11/async-getprop.h			\
+	x11/group-private.h			\
+	x11/group-props.c			\
+	x11/group-props.h			\
+	x11/group.c				\
+	meta/group.h				\
+	x11/session.c				\
+	x11/session.h				\
+	x11/window-props.c			\
+	x11/window-props.h			\
+	x11/window-x11.c			\
+	x11/window-x11.h			\
+	x11/window-x11-private.h		\
+	x11/xprops.c				\
+	x11/xprops.h				\
+	wayland/meta-wayland.c			\
+	wayland/meta-wayland.h			\
+	wayland/meta-wayland-private.h		\
+	wayland/meta-xwayland-private.h		\
+	wayland/meta-xwayland.c			\
+	wayland/meta-wayland-data-device.c      \
+	wayland/meta-wayland-data-device.h      \
+	wayland/meta-wayland-keyboard.c		\
+	wayland/meta-wayland-keyboard.h		\
+	wayland/meta-wayland-pointer.c		\
+	wayland/meta-wayland-pointer.h		\
+	wayland/meta-wayland-seat.c		\
+	wayland/meta-wayland-seat.h		\
+	wayland/meta-wayland-stage.h		\
+	wayland/meta-wayland-stage.c		\
+	wayland/meta-wayland-surface.c		\
+	wayland/meta-wayland-surface.h		\
+	wayland/meta-wayland-types.h		\
+	wayland/meta-wayland-versions.h		\
+	wayland/meta-weston-launch.c		\
+	wayland/meta-weston-launch.h
 
-nodist_libmutter_la_SOURCES =			\
+nodist_libmutter_wayland_la_SOURCES =		\
 	$(mutter_built_sources)
 
-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
@@ -209,16 +254,27 @@ 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 $(INTROSPECTION_MAKEFILE)
@@ -240,41 +296,36 @@ typelib_DATA = Meta-$(api_version).typelib
 
 INTROSPECTION_GIRS = Meta-$(api_version).gir
 
-Meta-$(api_version).gir: libmutter.la
+Meta-$(api_version).gir: libmutter-wayland.la
 @META_GIR@_INCLUDES = GObject-2.0 GDesktopEnums-3.0 Gdk-3.0 Gtk-3.0 Clutter-1.0 xlib-2.0 xfixes-4.0 Cogl-1.0
-@META_GIR@_EXPORT_PACKAGES = libmutter
+@META_GIR@_EXPORT_PACKAGES = libmutter-wayland
 @META_GIR@_CFLAGS = $(INCLUDES)
-@META_GIR@_LIBS = libmutter.la
+@META_GIR@_LIBS = libmutter-wayland.la
 @META_GIR@_FILES =				\
 	mutter-enum-types.h			\
 	$(libmutterinclude_base_headers)	\
-	$(filter %.c,$(libmutter_la_SOURCES) $(nodist_libmutter_la_SOURCES))
+	$(filter %.c,$(libmutter_wayland_la_SOURCES) $(nodist_libmutter_wayland_la_SOURCES))
 @META_GIR@_SCANNERFLAGS = --warn-all --warn-error
 
 endif
 
 testboxes_SOURCES = core/testboxes.c
 testgradient_SOURCES = ui/testgradient.c
-testasyncgetprop_SOURCES = core/testasyncgetprop.c
+testasyncgetprop_SOURCES = x11/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	\
@@ -282,7 +333,9 @@ 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@
 
@@ -290,9 +343,10 @@ convertdir = $(datadir)/GConf/gsettings
 convert_DATA = mutter-schemas.convert
 
 CLEANFILES =					\
-	mutter.desktop				\
+	mutter-wayland.desktop			\
 	mutter-wm.desktop			\
 	org.gnome.mutter.gschema.xml		\
+	org.gnome.mutter.wayland.gschema.xml	\
 	$(xml_DATA)				\
 	$(mutter_built_sources)			\
 	$(typelib_DATA)				\
@@ -300,7 +354,7 @@ CLEANFILES =					\
 
 pkgconfigdir = $(libdir)/pkgconfig
 
-pkgconfig_DATA = libmutter.pc mutter-plugins.pc
+pkgconfig_DATA = libmutter-wayland.pc
 
 EXTRA_DIST=$(desktopfiles_files) 	\
 	$(wmproperties_files)		\
@@ -308,14 +362,14 @@ EXTRA_DIST=$(desktopfiles_files) 	\
 	$(desktopfiles_in_files)	\
 	$(wmproperties_in_files)	\
 	$(xml_in_files)			\
+	$(wayland_protocols)		\
 	org.gnome.mutter.gschema.xml.in \
-	idle-monitor.xml \
-	xrandr.xml \
+	org.gnome.mutter.wayland.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
+	mutter-enum-types.c.in \
+	xrandr.xml idle-monitor.xml
 
 BUILT_SOURCES = $(mutter_built_sources)
 MUTTER_STAMP_FILES = stamp-mutter-enum-types.h
@@ -349,7 +403,6 @@ $(dbus_xrandr_built_sources) : Makefile.am xrandr.xml
 		--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							\
@@ -358,3 +411,8 @@ $(dbus_idle_built_sources) : Makefile.am idle-monitor.xml
 		--generate-c-code meta-dbus-idle-monitor				\
 		--c-generate-object-manager						\
 		$(srcdir)/idle-monitor.xml
+
+%-protocol.c : $(srcdir)/wayland/protocol/%.xml
+	$(AM_V_GEN)$(WAYLAND_SCANNER) code < $< > $@
+%-server-protocol.h : $(srcdir)/wayland/protocol/%.xml
+	$(AM_V_GEN)$(WAYLAND_SCANNER) server-header < $< > $@

src/compositor/compositor-private.h

@@ -19,16 +19,10 @@ struct _MetaCompositor
 
   guint           repaint_func_id;
 
-  ClutterActor   *shadow_src;
-
-  MetaPlugin     *modal_plugin;
-
   gint64          server_time_query_time;
   gint64          server_time_offset;
 
   guint           server_time_is_monotonic_time : 1;
-  guint           show_redraw : 1;
-  guint           debug       : 1;
   guint           no_mipmaps  : 1;
 };
 
@@ -36,10 +30,9 @@ struct _MetaCompScreen
 {
   MetaScreen            *screen;
 
-  ClutterActor          *stage, *window_group, *top_window_group, *overlay_group;
+  ClutterActor          *stage, *window_group, *top_window_group;
   ClutterActor          *background_actor;
   GList                 *windows;
-  GHashTable            *windows_by_xid;
   Window                 output;
 
   CoglOnscreen          *onscreen;
@@ -70,6 +63,4 @@ void     meta_end_modal_for_plugin   (MetaScreen       *screen,
 gint64 meta_compositor_monotonic_time_to_server_time (MetaDisplay *display,
                                                       gint64       monotonic_time);
 
-void meta_check_end_modal (MetaScreen *screen);
-
 #endif /* META_COMPOSITOR_PRIVATE_H */

src/compositor/compositor.c

@@ -65,7 +65,6 @@
 #include <meta/window.h>
 #include "compositor-private.h"
 #include <meta/compositor-mutter.h>
-#include "xprops.h"
 #include <meta/prefs.h>
 #include <meta/main.h>
 #include <meta/meta-background-actor.h>
@@ -76,11 +75,17 @@
 #include "window-private.h" /* to check window->hidden */
 #include "display-private.h" /* for meta_display_lookup_x_window() */
 #include "util-private.h"
+#include "frame.h"
 #include <X11/extensions/shape.h>
 #include <X11/extensions/Xcomposite.h>
 
-/* #define DEBUG_TRACE g_print */
-#define DEBUG_TRACE(X)
+#include "wayland/meta-wayland-private.h"
+
+static gboolean
+is_modal (MetaDisplay *display)
+{
+  return display->grab_op == META_GRAB_OP_COMPOSITOR;
+}
 
 static inline gboolean
 composite_at_least_version (MetaDisplay *display, int maj, int min)
@@ -105,13 +110,8 @@ meta_finish_workspace_switch (MetaCompScreen *info)
   for (l = info->windows; l; l = l->next)
     meta_window_actor_sync_visibility (l->data);
 
-  /*
-   * Fix up stacking order in case the plugin messed it up.
-   */
+  /* Fix up stacking order. */
   sync_actor_stacking (info);
-
-/*   printf ("... FINISHED DESKTOP SWITCH\n"); */
-
 }
 
 void
@@ -137,34 +137,13 @@ meta_compositor_destroy (MetaCompositor *compositor)
   clutter_threads_remove_repaint_func (compositor->repaint_func_id);
 }
 
-static void
-add_win (MetaWindow *window)
-{
-  MetaScreen		*screen = meta_window_get_screen (window);
-  MetaCompScreen        *info = meta_screen_get_compositor_data (screen);
-
-  g_return_if_fail (info != NULL);
-
-  meta_window_actor_new (window);
-
-  sync_actor_stacking (info);
-}
-
 static void
 process_damage (MetaCompositor     *compositor,
                 XDamageNotifyEvent *event,
                 MetaWindow         *window)
 {
-  MetaWindowActor *window_actor;
-
-  if (window == NULL)
-    return;
-
-  window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
-  if (window_actor == NULL)
-    return;
-
-  meta_window_actor_process_damage (window_actor, event);
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
+  meta_window_actor_process_x11_damage (window_actor, event);
 }
 
 static Window
@@ -275,19 +254,27 @@ void
 meta_set_stage_input_region (MetaScreen   *screen,
                              XserverRegion region)
 {
-  MetaCompScreen *info    = meta_screen_get_compositor_data (screen);
-  MetaDisplay    *display = meta_screen_get_display (screen);
-  Display        *xdpy    = meta_display_get_xdisplay (display);
-  Window          xstage  = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
-
-  XFixesSetWindowShapeRegion (xdpy, xstage, ShapeInput, 0, 0, region);
-
-  /* It's generally a good heuristic that when a crossing event is generated because
-   * we reshape the overlay, we don't want it to affect focus-follows-mouse focus -
-   * it's not the user doing something, it's the environment changing under the user.
+  /* As a wayland compositor we can simply ignore all this trickery
+   * for setting an input region on the stage for capturing events in
+   * clutter since all input comes to us first and we get to choose
+   * who else sees them.
    */
-  meta_display_add_ignored_crossing_serial (display, XNextRequest (xdpy));
-  XFixesSetWindowShapeRegion (xdpy, info->output, ShapeInput, 0, 0, region);
+  if (!meta_is_wayland_compositor ())
+    {
+      MetaCompScreen *info    = meta_screen_get_compositor_data (screen);
+      MetaDisplay    *display = meta_screen_get_display (screen);
+      Display        *xdpy    = meta_display_get_xdisplay (display);
+      Window          xstage  = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
+
+      XFixesSetWindowShapeRegion (xdpy, xstage, ShapeInput, 0, 0, region);
+
+      /* It's generally a good heuristic that when a crossing event is generated because
+       * we reshape the overlay, we don't want it to affect focus-follows-mouse focus -
+       * it's not the user doing something, it's the environment changing under the user.
+       */
+      meta_display_add_ignored_crossing_serial (display, XNextRequest (xdpy));
+      XFixesSetWindowShapeRegion (xdpy, info->output, ShapeInput, 0, 0, region);
+    }
 }
 
 void
@@ -335,6 +322,9 @@ meta_stage_is_focused (MetaScreen *screen)
   ClutterStage *stage;
   Window window;
 
+  if (meta_is_wayland_compositor ())
+    return TRUE;
+
   stage = CLUTTER_STAGE (meta_get_stage_for_screen (screen));
   if (!stage)
     return FALSE;
@@ -347,34 +337,19 @@ meta_stage_is_focused (MetaScreen *screen)
   return (screen->display->focus_xwindow == window);
 }
 
-gboolean
-meta_begin_modal_for_plugin (MetaScreen       *screen,
-                             MetaPlugin       *plugin,
-                             MetaModalOptions  options,
-                             guint32           timestamp)
+static gboolean
+begin_modal_x11 (MetaScreen       *screen,
+                 MetaPlugin       *plugin,
+                 MetaModalOptions  options,
+                 guint32           timestamp)
 {
-  /* To some extent this duplicates code in meta_display_begin_grab_op(), but there
-   * are significant differences in how we handle grabs that make it difficult to
-   * merge the two.
-   */
-  MetaDisplay    *display    = meta_screen_get_display (screen);
-  Display        *xdpy       = meta_display_get_xdisplay (display);
-  MetaCompositor *compositor = display->compositor;
-  ClutterStage *stage;
-  Window grab_window;
-  Cursor cursor = None;
-  gboolean pointer_grabbed = FALSE;
-  gboolean keyboard_grabbed = FALSE;
-  int result;
-
-  stage = CLUTTER_STAGE (meta_get_stage_for_screen (screen));
-  if (!stage)
-    return FALSE;
-
-  grab_window = clutter_x11_get_stage_window (stage);
-
-  if (compositor->modal_plugin != NULL || display->grab_op != META_GRAB_OP_NONE)
-    return FALSE;
+  MetaDisplay    *display     = meta_screen_get_display (screen);
+  Display        *xdpy        = meta_display_get_xdisplay (display);
+  MetaCompScreen *info        = meta_screen_get_compositor_data (screen);
+  Window          grab_window = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
+  int             result;
+  gboolean        pointer_grabbed = FALSE;
+  gboolean        keyboard_grabbed = FALSE;
 
   if ((options & META_MODAL_POINTER_ALREADY_GRABBED) == 0)
     {
@@ -391,7 +366,7 @@ meta_begin_modal_for_plugin (MetaScreen       *screen,
                              META_VIRTUAL_CORE_POINTER_ID,
                              grab_window,
                              timestamp,
-                             cursor,
+                             None,
                              XIGrabModeAsync, XIGrabModeAsync,
                              False, /* owner_events */
                              &mask);
@@ -424,14 +399,6 @@ meta_begin_modal_for_plugin (MetaScreen       *screen,
       keyboard_grabbed = TRUE;
     }
 
-  display->grab_op = META_GRAB_OP_COMPOSITOR;
-  display->grab_window = NULL;
-  display->grab_screen = screen;
-  display->grab_have_pointer = TRUE;
-  display->grab_have_keyboard = TRUE;
-
-  compositor->modal_plugin = plugin;
-
   return TRUE;
 
  fail:
@@ -443,46 +410,59 @@ meta_begin_modal_for_plugin (MetaScreen       *screen,
   return FALSE;
 }
 
+gboolean
+meta_begin_modal_for_plugin (MetaScreen       *screen,
+                             MetaPlugin       *plugin,
+                             MetaModalOptions  options,
+                             guint32           timestamp)
+{
+  /* To some extent this duplicates code in meta_display_begin_grab_op(), but there
+   * are significant differences in how we handle grabs that make it difficult to
+   * merge the two.
+   */
+  MetaDisplay *display = meta_screen_get_display (screen);
+  gboolean ok;
+
+  if (is_modal (display) || display->grab_op != META_GRAB_OP_NONE)
+    return FALSE;
+
+  if (meta_is_wayland_compositor ())
+    ok = TRUE;
+  else
+    ok = begin_modal_x11 (screen, plugin, options, timestamp);
+  if (!ok)
+    return FALSE;
+
+  display->grab_op = META_GRAB_OP_COMPOSITOR;
+  display->grab_window = NULL;
+  display->grab_screen = screen;
+  display->grab_have_pointer = TRUE;
+  display->grab_have_keyboard = TRUE;
+
+  return TRUE;
+}
+
 void
 meta_end_modal_for_plugin (MetaScreen     *screen,
                            MetaPlugin     *plugin,
                            guint32         timestamp)
 {
-  MetaDisplay    *display    = meta_screen_get_display (screen);
-  Display        *xdpy = meta_display_get_xdisplay (display);
-  MetaCompositor *compositor = display->compositor;
+  MetaDisplay *display = meta_screen_get_display (screen);
+  Display *xdpy = meta_display_get_xdisplay (display);
 
-  g_return_if_fail (compositor->modal_plugin == plugin);
+  g_return_if_fail (is_modal (display));
 
-  XIUngrabDevice (xdpy, META_VIRTUAL_CORE_POINTER_ID, timestamp);
-  XIUngrabDevice (xdpy, META_VIRTUAL_CORE_KEYBOARD_ID, timestamp);
+  if (!meta_is_wayland_compositor ())
+    {
+      XIUngrabDevice (xdpy, META_VIRTUAL_CORE_POINTER_ID, timestamp);
+      XIUngrabDevice (xdpy, META_VIRTUAL_CORE_KEYBOARD_ID, timestamp);
+    }
 
   display->grab_op = META_GRAB_OP_NONE;
   display->grab_window = NULL;
   display->grab_screen = NULL;
   display->grab_have_pointer = FALSE;
   display->grab_have_keyboard = FALSE;
-
-  compositor->modal_plugin = NULL;
-}
-
-/* This is used when reloading plugins to make sure we don't have
- * a left-over modal grab for this screen.
- */
-void
-meta_check_end_modal (MetaScreen *screen)
-{
-  MetaDisplay    *display    = meta_screen_get_display (screen);
-  MetaCompositor *compositor = display->compositor;
-
-  if (compositor->modal_plugin &&
-      meta_plugin_get_screen (compositor->modal_plugin) == screen)
-    {
-      meta_end_modal_for_plugin (screen,
-                                   compositor->modal_plugin,
-
-                                 CurrentTime);
-    }
 }
 
 static void
@@ -494,6 +474,9 @@ after_stage_paint (ClutterStage *stage,
 
   for (l = info->windows; l; l = l->next)
     meta_window_actor_post_paint (l->data);
+
+  if (meta_is_wayland_compositor ())
+    meta_wayland_compositor_paint_finished (meta_wayland_compositor_get_default ());
 }
 
 static void
@@ -547,8 +530,9 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
   MetaCompScreen *info;
   MetaDisplay    *display       = meta_screen_get_display (screen);
   Display        *xdisplay      = meta_display_get_xdisplay (display);
-  Window          xwin;
+  Window          xwin = None;
   gint            width, height;
+  MetaWaylandCompositor *wayland_compositor;
 
   /* Check if the screen is already managed */
   if (meta_screen_get_compositor_data (screen))
@@ -564,7 +548,56 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
 
   meta_screen_set_cm_selection (screen);
 
-  info->stage = clutter_stage_new ();
+  /* We will have already created a stage if running as a wayland
+   * compositor... */
+  if (meta_is_wayland_compositor ())
+    {
+      wayland_compositor = meta_wayland_compositor_get_default ();
+      info->stage = wayland_compositor->stage;
+
+      meta_screen_get_size (screen, &width, &height);
+      clutter_actor_set_size (info->stage, width, height);
+    }
+  else
+    {
+      info->stage = clutter_stage_new ();
+
+      meta_screen_get_size (screen, &width, &height);
+      clutter_actor_realize (info->stage);
+
+      xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
+
+      XResizeWindow (xdisplay, xwin, width, height);
+
+        {
+          long event_mask;
+          unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
+          XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
+          XWindowAttributes attr;
+
+          meta_core_add_old_event_mask (xdisplay, xwin, &mask);
+
+          XISetMask (mask.mask, XI_KeyPress);
+          XISetMask (mask.mask, XI_KeyRelease);
+          XISetMask (mask.mask, XI_ButtonPress);
+          XISetMask (mask.mask, XI_ButtonRelease);
+          XISetMask (mask.mask, XI_Enter);
+          XISetMask (mask.mask, XI_Leave);
+          XISetMask (mask.mask, XI_FocusIn);
+          XISetMask (mask.mask, XI_FocusOut);
+          XISetMask (mask.mask, XI_Motion);
+          XIClearMask (mask.mask, XI_TouchBegin);
+          XIClearMask (mask.mask, XI_TouchEnd);
+          XIClearMask (mask.mask, XI_TouchUpdate);
+          XISelectEvents (xdisplay, xwin, &mask, 1);
+
+          event_mask = ExposureMask | PropertyChangeMask | StructureNotifyMask;
+          if (XGetWindowAttributes (xdisplay, xwin, &attr))
+            event_mask |= attr.your_event_mask;
+
+          XSelectInput (xdisplay, xwin, event_mask);
+        }
+    }
 
   clutter_stage_set_paint_callback (CLUTTER_STAGE (info->stage),
                                     after_stage_paint,
@@ -573,80 +606,41 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
 
   clutter_stage_set_sync_delay (CLUTTER_STAGE (info->stage), META_SYNC_DELAY);
 
-  meta_screen_get_size (screen, &width, &height);
-  clutter_actor_realize (info->stage);
-
-  xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
-
-  XResizeWindow (xdisplay, xwin, width, height);
-
-  {
-    long event_mask;
-    unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
-    XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
-    XWindowAttributes attr;
-
-    meta_core_add_old_event_mask (xdisplay, xwin, &mask);
-
-    XISetMask (mask.mask, XI_KeyPress);
-    XISetMask (mask.mask, XI_KeyRelease);
-    XISetMask (mask.mask, XI_ButtonPress);
-    XISetMask (mask.mask, XI_ButtonRelease);
-    XISetMask (mask.mask, XI_Enter);
-    XISetMask (mask.mask, XI_Leave);
-    XISetMask (mask.mask, XI_FocusIn);
-    XISetMask (mask.mask, XI_FocusOut);
-    XISetMask (mask.mask, XI_Motion);
-    XIClearMask (mask.mask, XI_TouchBegin);
-    XIClearMask (mask.mask, XI_TouchEnd);
-    XIClearMask (mask.mask, XI_TouchUpdate);
-    XISelectEvents (xdisplay, xwin, &mask, 1);
-
-    event_mask = ExposureMask | PropertyChangeMask | StructureNotifyMask;
-    if (XGetWindowAttributes (xdisplay, xwin, &attr))
-      event_mask |= attr.your_event_mask;
-
-    XSelectInput (xdisplay, xwin, event_mask);
-  }
-
   info->window_group = meta_window_group_new (screen);
   info->top_window_group = meta_window_group_new (screen);
 
   clutter_actor_add_child (info->stage, info->window_group);
   clutter_actor_add_child (info->stage, info->top_window_group);
 
-  info->output = get_output_window (screen);
-  XReparentWindow (xdisplay, xwin, info->output, 0, 0);
+  if (meta_is_wayland_compositor ())
+    {
+      /* NB: When running as a wayland compositor we don't need an X
+       * composite overlay window, and we don't need to play any input
+       * region tricks to redirect events into clutter. */
+      info->output = None;
+    }
+  else
+    {
+      info->output = get_output_window (screen);
+      XReparentWindow (xdisplay, xwin, info->output, 0, 0);
 
- /* Make sure there isn't any left-over output shape on the 
-  * overlay window by setting the whole screen to be an
-  * output region.
-  * 
-  * Note: there doesn't seem to be any real chance of that
-  *  because the X server will destroy the overlay window
-  *  when the last client using it exits.
-  */
-  XFixesSetWindowShapeRegion (xdisplay, info->output, ShapeBounding, 0, 0, None);
+      meta_empty_stage_input_region (screen);
 
-  info->output = get_output_window (screen);
-  XReparentWindow (xdisplay, xwin, info->output, 0, 0);
+      /* Make sure there isn't any left-over output shape on the 
+       * overlay window by setting the whole screen to be an
+       * output region.
+       * 
+       * Note: there doesn't seem to be any real chance of that
+       *  because the X server will destroy the overlay window
+       *  when the last client using it exits.
+       */
+      XFixesSetWindowShapeRegion (xdisplay, info->output, ShapeBounding, 0, 0, None);
 
-  meta_empty_stage_input_region (screen);
-
-  /* Make sure there isn't any left-over output shape on the 
-   * overlay window by setting the whole screen to be an
-   * output region.
-   * 
-   * Note: there doesn't seem to be any real chance of that
-   *  because the X server will destroy the overlay window
-   *  when the last client using it exits.
-   */
-  XFixesSetWindowShapeRegion (xdisplay, info->output, ShapeBounding, 0, 0, None);
-
-  /* Map overlay window before redirecting windows offscreen so we catch their
-   * contents until we show the stage.
-   */
-  XMapWindow (xdisplay, info->output);
+      /* Map overlay window before redirecting windows offscreen so we catch their
+       * contents until we show the stage.
+       */
+      XMapWindow (xdisplay, info->output);
+    }
 
   redirect_windows (compositor, screen);
 
@@ -657,28 +651,38 @@ void
 meta_compositor_unmanage_screen (MetaCompositor *compositor,
                                  MetaScreen     *screen)
 {
-  MetaDisplay    *display       = meta_screen_get_display (screen);
-  Display        *xdisplay      = meta_display_get_xdisplay (display);
-  Window          xroot         = meta_screen_get_xroot (screen);
+  if (!meta_is_wayland_compositor ())
+    {
+      MetaDisplay    *display       = meta_screen_get_display (screen);
+      Display        *xdisplay      = meta_display_get_xdisplay (display);
+      Window          xroot         = meta_screen_get_xroot (screen);
 
-  /* This is the most important part of cleanup - we have to do this
-   * before giving up the window manager selection or the next
-   * window manager won't be able to redirect subwindows */
-  XCompositeUnredirectSubwindows (xdisplay, xroot, CompositeRedirectManual);
+      /* This is the most important part of cleanup - we have to do this
+       * before giving up the window manager selection or the next
+       * window manager won't be able to redirect subwindows */
+      XCompositeUnredirectSubwindows (xdisplay, xroot, CompositeRedirectManual);
+    }
 }
 
-/*
- * Shapes the cow so that the given window is exposed,
- * when metaWindow is NULL it clears the shape again
+/**
+ * meta_shape_cow_for_window:
+ * @screen: A #MetaScreen
+ * @window: (allow-none): A #MetaWindow to shape the COW for
+ *
+ * Sets an bounding shape on the COW so that the given window
+ * is exposed. If @window is %NULL it clears the shape again.
+ *
+ * Used so we can unredirect windows, by shaping away the part
+ * of the COW, letting the raw window be seen through below.
  */
 static void
 meta_shape_cow_for_window (MetaScreen *screen,
-                           MetaWindow *metaWindow)
+                           MetaWindow *window)
 {
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
   Display *xdisplay = meta_display_get_xdisplay (meta_screen_get_display (screen));
 
-  if (metaWindow == NULL)
+  if (window == NULL)
       XFixesSetWindowShapeRegion (xdisplay, info->output, ShapeBounding, 0, 0, None);
   else
     {
@@ -687,7 +691,7 @@ meta_shape_cow_for_window (MetaScreen *screen,
       int width, height;
       MetaRectangle rect;
 
-      meta_window_get_frame_rect (metaWindow, &rect);
+      meta_window_get_frame_rect (window, &rect);
 
       window_bounds.x = rect.x;
       window_bounds.y = rect.y;
@@ -738,11 +742,12 @@ meta_compositor_add_window (MetaCompositor    *compositor,
 {
   MetaScreen *screen = meta_window_get_screen (window);
   MetaDisplay *display = meta_screen_get_display (screen);
+  MetaCompScreen *info = meta_screen_get_compositor_data (screen);
 
-  DEBUG_TRACE ("meta_compositor_add_window\n");
   meta_error_trap_push (display);
 
-  add_win (window);
+  meta_window_actor_new (window);
+  sync_actor_stacking (info);
 
   meta_error_trap_pop (display);
 }
@@ -751,17 +756,9 @@ void
 meta_compositor_remove_window (MetaCompositor *compositor,
                                MetaWindow     *window)
 {
-  MetaWindowActor         *window_actor     = NULL;
-  MetaScreen *screen;
-  MetaCompScreen *info;
-
-  DEBUG_TRACE ("meta_compositor_remove_window\n");
-  window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
-  if (!window_actor)
-    return;
-
-  screen = meta_window_get_screen (window);
-  info = meta_screen_get_compositor_data (screen);
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
+  MetaScreen *screen = meta_window_get_screen (window);
+  MetaCompScreen *info = meta_screen_get_compositor_data (screen);
 
   if (info->unredirected_window == window)
     set_unredirected_window (info, NULL);
@@ -774,13 +771,7 @@ meta_compositor_set_updates_frozen (MetaCompositor *compositor,
                                     MetaWindow     *window,
                                     gboolean        updates_frozen)
 {
-  MetaWindowActor *window_actor;
-
-  DEBUG_TRACE ("meta_compositor_set_updates_frozen\n");
-  window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
-  if (!window_actor)
-    return;
-
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
   meta_window_actor_set_updates_frozen (window_actor, updates_frozen);
 }
 
@@ -789,13 +780,7 @@ meta_compositor_queue_frame_drawn (MetaCompositor *compositor,
                                    MetaWindow     *window,
                                    gboolean        no_delay_frame)
 {
-  MetaWindowActor *window_actor;
-
-  DEBUG_TRACE ("meta_compositor_queue_frame_drawn\n");
-  window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
-  if (!window_actor)
-    return;
-
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
   meta_window_actor_queue_frame_drawn (window_actor, no_delay_frame);
 }
 
@@ -846,23 +831,79 @@ meta_compositor_window_opacity_changed (MetaCompositor *compositor,
   meta_window_actor_update_opacity (window_actor);
 }
 
+void
+meta_compositor_window_surface_changed (MetaCompositor *compositor,
+                                        MetaWindow     *window)
+{
+  MetaWindowActor *window_actor;
+  window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
+  if (!window_actor)
+    return;
+
+  meta_window_actor_update_surface (window_actor);
+}
+
+static gboolean
+grab_op_is_clicking (MetaGrabOp grab_op)
+{
+  switch (grab_op)
+    {
+    case META_GRAB_OP_CLICKING_MINIMIZE:
+    case META_GRAB_OP_CLICKING_MAXIMIZE:
+    case META_GRAB_OP_CLICKING_UNMAXIMIZE:
+    case META_GRAB_OP_CLICKING_DELETE:
+    case META_GRAB_OP_CLICKING_MENU:
+    case META_GRAB_OP_CLICKING_SHADE:
+    case META_GRAB_OP_CLICKING_UNSHADE:
+    case META_GRAB_OP_CLICKING_ABOVE:
+    case META_GRAB_OP_CLICKING_UNABOVE:
+    case META_GRAB_OP_CLICKING_STICK:
+    case META_GRAB_OP_CLICKING_UNSTICK:
+      return TRUE;
+
+    default:
+      return FALSE;
+    }
+}
+
+static gboolean
+event_is_passive_button_grab (MetaDisplay   *display,
+                              XIDeviceEvent *device_event)
+{
+  /* see display.c for which events are passive button
+     grabs (meta_display_grab_window_buttons() and
+     meta_display_handle_events())
+     we need to filter them here because normally they
+     would be sent to gtk+ (they are on gtk+ frame xwindow),
+     but we want to redirect them to clutter
+  */
+
+  if (device_event->evtype != XI_ButtonPress)
+    return FALSE;
+
+  if (display->window_grab_modifiers == 0)
+    return FALSE;
+
+  if ((device_event->mods.effective & display->window_grab_modifiers) !=
+      display->window_grab_modifiers)
+    return FALSE;
+
+  return device_event->detail < 4;
+}
+
 /* Clutter makes the assumption that there is only one X window
  * per stage, which is a valid assumption to make for a generic
  * application toolkit. As such, it will ignore any events sent
  * to the a stage that isn't its X window.
  *
- * When a user clicks on what she thinks is the wallpaper, she
- * is actually clicking on the guard window, which is an entirely
- * separate top-level override-redirect window in the hierarchy.
- * We want to recieve events on this guard window so that users
- * can right-click on the background actor. We do this by telling
- * Clutter a little white lie, by transforming clicks on the guard
- * window to become clicks on the stage window, allowing Clutter
- * to process the event normally.
+ * When running as an X window manager, we need to respond to
+ * events from lots of windows. Trick Clutter into translating
+ * these events by pretending we got an event on the stage window.
  */
 static void
-maybe_spoof_guard_window_event_as_stage_event (MetaCompScreen *info,
-                                               XEvent         *event)
+maybe_spoof_event_as_stage_event (MetaCompScreen *info,
+                                  MetaWindow     *window,
+                                  XEvent         *event)
 {
   MetaDisplay *display = meta_screen_get_display (info->screen);
 
@@ -870,21 +911,30 @@ maybe_spoof_guard_window_event_as_stage_event (MetaCompScreen *info,
       event->xcookie.extension == display->xinput_opcode)
     {
       XIEvent *input_event = (XIEvent *) event->xcookie.data;
+      XIDeviceEvent *device_event = ((XIDeviceEvent *) input_event);
 
-      /* Only care about pointer events for now. */
       switch (input_event->evtype)
         {
         case XI_Motion:
         case XI_ButtonPress:
         case XI_ButtonRelease:
-          {
-            XIDeviceEvent *device_event = ((XIDeviceEvent *) input_event);
-            if (device_event->event == info->screen->guard_window)
-              {
-                Window xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
-                device_event->event = xwin;
-              }
-          }
+          /* If this is a window frame, and we think GTK+ needs to handle the event,
+             let GTK+ handle it without mangling */
+          if (window && window->frame && device_event->event == window->frame->xwindow &&
+              (grab_op_is_clicking (display->grab_op) ||
+               (display->grab_op == META_GRAB_OP_NONE && !event_is_passive_button_grab (display, device_event))))
+            break;
+
+        case XI_KeyPress:
+        case XI_KeyRelease:
+            /* If this is a GTK+ widget, like a window menu, let GTK+ handle
+             * it as-is without mangling. */
+            if (meta_ui_window_is_widget (info->screen->ui, device_event->event))
+              break;
+
+            device_event->event = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
+            device_event->event_x = device_event->root_x;
+            device_event->event_y = device_event->root_y;
           break;
         default:
           break;
@@ -904,55 +954,29 @@ meta_compositor_process_event (MetaCompositor *compositor,
                                XEvent         *event,
                                MetaWindow     *window)
 {
-  if (compositor->modal_plugin && is_grabbed_event (compositor->display, event))
+  MetaDisplay *display = compositor->display;
+  MetaScreen *screen = display->screens->data;
+  MetaCompScreen *info;
+
+  info = meta_screen_get_compositor_data (screen);
+
+  if (is_modal (display) && is_grabbed_event (compositor->display, event))
     {
-      _meta_plugin_xevent_filter (compositor->modal_plugin, event);
+      meta_plugin_manager_xevent_filter (info->plugin_mgr, event);
 
       /* We always consume events even if the plugin says it didn't handle them;
        * exclusive is exclusive */
       return TRUE;
     }
 
-  if (window)
-    {
-      MetaCompScreen *info;
-      MetaScreen     *screen;
+  if (!meta_is_wayland_compositor ())
+    maybe_spoof_event_as_stage_event (info, window, event);
 
-      screen = meta_window_get_screen (window);
-      info = meta_screen_get_compositor_data (screen);
+  if (meta_plugin_manager_xevent_filter (info->plugin_mgr, event))
+    return TRUE;
 
-      if (meta_plugin_manager_xevent_filter (info->plugin_mgr, event))
-	{
-	  DEBUG_TRACE ("meta_compositor_process_event (filtered,window==NULL)\n");
-	  return TRUE;
-	}
-    }
-  else
-    {
-      GSList *l;
-
-      l = meta_display_get_screens (compositor->display);
-
-      while (l)
-	{
-	  MetaScreen     *screen = l->data;
-	  MetaCompScreen *info;
-
-	  info = meta_screen_get_compositor_data (screen);
-
-          maybe_spoof_guard_window_event_as_stage_event (info, event);
-
-	  if (meta_plugin_manager_xevent_filter (info->plugin_mgr, event))
-	    {
-	      DEBUG_TRACE ("meta_compositor_process_event (filtered,window==NULL)\n");
-	      return TRUE;
-	    }
-
-	  l = l->next;
-	}
-    }
-
-  if (event->type == meta_display_get_damage_event_base (compositor->display) + XDamageNotify)
+  if (!meta_is_wayland_compositor () &&
+      event->type == meta_display_get_damage_event_base (compositor->display) + XDamageNotify)
     {
       /* Core code doesn't handle damage events, so we need to extract the MetaWindow
        * ourselves
@@ -963,13 +987,12 @@ meta_compositor_process_event (MetaCompositor *compositor,
           window = meta_display_lookup_x_window (compositor->display, xwin);
         }
 
-      DEBUG_TRACE ("meta_compositor_process_event (process_damage)\n");
       process_damage (compositor, (XDamageNotifyEvent *) event, window);
     }
 
   /* Clutter needs to know about MapNotify events otherwise it will
      think the stage is invisible */
-  if (event->type == MapNotify)
+  if (!meta_is_wayland_compositor () && event->type == MapNotify)
     clutter_x11_handle_event (event);
 
   /* The above handling is basically just "observing" the events, so we return
@@ -985,11 +1008,7 @@ meta_compositor_filter_keybinding (MetaCompositor *compositor,
                                    MetaKeyBinding *binding)
 {
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
-
-  if (info->plugin_mgr)
-    return meta_plugin_manager_filter_keybinding (info->plugin_mgr, binding);
-
-  return FALSE;
+  return meta_plugin_manager_filter_keybinding (info->plugin_mgr, binding);
 }
 
 void
@@ -998,11 +1017,7 @@ meta_compositor_show_window (MetaCompositor *compositor,
                              MetaCompEffect  effect)
 {
   MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
-  DEBUG_TRACE ("meta_compositor_show_window\n");
-  if (!window_actor)
-    return;
-
-  meta_window_actor_show (window_actor, effect);
+ meta_window_actor_show (window_actor, effect);
 }
 
 void
@@ -1011,10 +1026,6 @@ meta_compositor_hide_window (MetaCompositor *compositor,
                              MetaCompEffect  effect)
 {
   MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
-  DEBUG_TRACE ("meta_compositor_hide_window\n");
-  if (!window_actor)
-    return;
-
   meta_window_actor_hide (window_actor, effect);
 }
 
@@ -1025,10 +1036,6 @@ meta_compositor_maximize_window (MetaCompositor    *compositor,
 				 MetaRectangle	   *new_rect)
 {
   MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
-  DEBUG_TRACE ("meta_compositor_maximize_window\n");
-  if (!window_actor)
-    return;
-
   meta_window_actor_maximize (window_actor, old_rect, new_rect);
 }
 
@@ -1039,10 +1046,6 @@ meta_compositor_unmaximize_window (MetaCompositor    *compositor,
 				   MetaRectangle     *new_rect)
 {
   MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
-  DEBUG_TRACE ("meta_compositor_unmaximize_window\n");
-  if (!window_actor)
-    return;
-
   meta_window_actor_unmaximize (window_actor, old_rect, new_rect);
 }
 
@@ -1060,18 +1063,14 @@ meta_compositor_switch_workspace (MetaCompositor     *compositor,
   to_indx   = meta_workspace_index (to);
   from_indx = meta_workspace_index (from);
 
-  DEBUG_TRACE ("meta_compositor_switch_workspace\n");
-
   if (!info) /* During startup before manage_screen() */
     return;
 
   info->switch_workspace_in_progress++;
 
-  if (!info->plugin_mgr ||
-      !meta_plugin_manager_switch_workspace (info->plugin_mgr,
-					       from_indx,
-					       to_indx,
-					       direction))
+  if (!meta_plugin_manager_switch_workspace (info->plugin_mgr,
+                                             from_indx, to_indx,
+                                             direction))
     {
       info->switch_workspace_in_progress--;
 
@@ -1180,8 +1179,6 @@ meta_compositor_sync_stack (MetaCompositor  *compositor,
   GList *old_stack;
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
 
-  DEBUG_TRACE ("meta_compositor_sync_stack\n");
-
   /* This is painful because hidden windows that we are in the process
    * of animating out of existence. They'll be at the bottom of the
    * stack of X windows, but we want to leave them in their old position
@@ -1270,15 +1267,6 @@ meta_compositor_sync_window_geometry (MetaCompositor *compositor,
                                       gboolean did_placement)
 {
   MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
-  MetaScreen      *screen = meta_window_get_screen (window);
-  MetaCompScreen  *info = meta_screen_get_compositor_data (screen);
-
-  DEBUG_TRACE ("meta_compositor_sync_window_geometry\n");
-  g_return_if_fail (info);
-
-  if (!window_actor)
-    return;
-
   meta_window_actor_sync_actor_geometry (window_actor, did_placement);
 }
 
@@ -1290,20 +1278,37 @@ meta_compositor_sync_screen_size (MetaCompositor  *compositor,
 {
   MetaDisplay    *display = meta_screen_get_display (screen);
   MetaCompScreen *info    = meta_screen_get_compositor_data (screen);
-  Display        *xdisplay;
-  Window          xwin;
 
-  DEBUG_TRACE ("meta_compositor_sync_screen_size\n");
-  g_return_if_fail (info);
+  if (meta_is_wayland_compositor ())
+    {
+      /* FIXME: when we support a sliced stage, this is the place to do it
+         But! This is not the place to apply KMS config, here we only
+         notify Clutter/Cogl/GL that the framebuffer sizes changed.
 
-  xdisplay = meta_display_get_xdisplay (display);
-  xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
+         And because for now clutter does not do sliced, we use one
+         framebuffer the size of the whole screen, and when running on
+         bare metal MetaMonitorManager will do the necessary tricks to
+         show the right portions on the right screens.
+      */
 
-  XResizeWindow (xdisplay, xwin, width, height);
+      clutter_actor_set_size (info->stage, width, height);
+    }
+  else
+    {
+      Display        *xdisplay;
+      Window          xwin;
+
+      g_return_if_fail (info);
+
+      xdisplay = meta_display_get_xdisplay (display);
+      xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
+
+      XResizeWindow (xdisplay, xwin, width, height);
+    }
 
   meta_verbose ("Changed size for stage on screen %d to %dx%d\n",
-		meta_screen_get_screen_number (screen),
-		width, height);
+                meta_screen_get_screen_number (screen),
+                width, height);
 }
 
 static void
@@ -1596,10 +1601,6 @@ meta_compositor_show_tile_preview (MetaCompositor *compositor,
                                    int             tile_monitor_number)
 {
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
-
-  if (!info->plugin_mgr)
-    return;
-
   meta_plugin_manager_show_tile_preview (info->plugin_mgr,
                                          window, tile_rect, tile_monitor_number);
 }
@@ -1609,9 +1610,5 @@ meta_compositor_hide_tile_preview (MetaCompositor *compositor,
                                    MetaScreen     *screen)
 {
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
-
-  if (!info->plugin_mgr)
-    return;
-
   meta_plugin_manager_hide_tile_preview (info->plugin_mgr);
 }

src/compositor/meta-plugin-manager.c

@@ -100,7 +100,9 @@ meta_plugin_manager_new (MetaScreen *screen)
 
   plugin_mgr = g_new0 (MetaPluginManager, 1);
   plugin_mgr->screen = screen;
-  plugin_mgr->plugin = plugin = g_object_new (plugin_type, "screen", screen, NULL);
+  plugin_mgr->plugin = plugin = g_object_new (plugin_type, NULL);
+
+  _meta_plugin_set_screen (plugin, screen);
 
   klass = META_PLUGIN_GET_CLASS (plugin);
 
@@ -165,8 +167,6 @@ meta_plugin_manager_event_simple (MetaPluginManager *plugin_mgr,
           retval = TRUE;
           meta_plugin_manager_kill_window_effects (plugin_mgr,
                                                    actor);
-
-          _meta_plugin_effect_started (plugin);
           klass->minimize (plugin, actor);
         }
       break;
@@ -176,8 +176,6 @@ meta_plugin_manager_event_simple (MetaPluginManager *plugin_mgr,
           retval = TRUE;
           meta_plugin_manager_kill_window_effects (plugin_mgr,
                                                    actor);
-
-          _meta_plugin_effect_started (plugin);
           klass->map (plugin, actor);
         }
       break;
@@ -185,7 +183,6 @@ meta_plugin_manager_event_simple (MetaPluginManager *plugin_mgr,
       if (klass->destroy)
         {
           retval = TRUE;
-          _meta_plugin_effect_started (plugin);
           klass->destroy (plugin, actor);
         }
       break;
@@ -230,8 +227,6 @@ meta_plugin_manager_event_maximize (MetaPluginManager *plugin_mgr,
           retval = TRUE;
           meta_plugin_manager_kill_window_effects (plugin_mgr,
                                                    actor);
-
-          _meta_plugin_effect_started (plugin);
           klass->maximize (plugin, actor,
                            target_x, target_y,
                            target_width, target_height);
@@ -243,8 +238,6 @@ meta_plugin_manager_event_maximize (MetaPluginManager *plugin_mgr,
           retval = TRUE;
           meta_plugin_manager_kill_window_effects (plugin_mgr,
                                                    actor);
-
-          _meta_plugin_effect_started (plugin);
           klass->unmaximize (plugin, actor,
                              target_x, target_y,
                              target_width, target_height);
@@ -283,8 +276,6 @@ meta_plugin_manager_switch_workspace (MetaPluginManager   *plugin_mgr,
     {
       retval = TRUE;
       meta_plugin_manager_kill_switch_workspace (plugin_mgr);
-
-      _meta_plugin_effect_started (plugin);
       klass->switch_workspace (plugin, from, to, direction);
     }
 

src/compositor/meta-plugin.c

@@ -30,6 +30,7 @@
 #include "meta-plugin-manager.h"
 #include <meta/screen.h>
 #include <meta/display.h>
+#include <meta/util.h>
 
 #include <string.h>
 #include <X11/Xlib.h>
@@ -46,91 +47,15 @@ G_DEFINE_ABSTRACT_TYPE (MetaPlugin, meta_plugin, G_TYPE_OBJECT);
 #define META_PLUGIN_GET_PRIVATE(obj) \
 (G_TYPE_INSTANCE_GET_PRIVATE ((obj), META_TYPE_PLUGIN, MetaPluginPrivate))
 
-enum
-{
-  PROP_0,
-  PROP_SCREEN,
-  PROP_DEBUG_MODE,
-};
-
 struct _MetaPluginPrivate
 {
-  MetaScreen   *screen;
-
-  gint          running;
-  gboolean      debug    : 1;
+  MetaScreen *screen;
 };
 
-static void
-meta_plugin_set_property (GObject      *object,
-                          guint         prop_id,
-                          const GValue *value,
-                          GParamSpec   *pspec)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (object)->priv;
-
-  switch (prop_id)
-    {
-    case PROP_SCREEN:
-      priv->screen = g_value_get_object (value);
-      break;
-    case PROP_DEBUG_MODE:
-      priv->debug = g_value_get_boolean (value);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-meta_plugin_get_property (GObject    *object,
-                          guint       prop_id,
-                          GValue     *value,
-                          GParamSpec *pspec)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (object)->priv;
-
-  switch (prop_id)
-    {
-    case PROP_SCREEN:
-      g_value_set_object (value, priv->screen);
-      break;
-    case PROP_DEBUG_MODE:
-      g_value_set_boolean (value, priv->debug);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-
 static void
 meta_plugin_class_init (MetaPluginClass *klass)
 {
-  GObjectClass      *gobject_class = G_OBJECT_CLASS (klass);
-
-  gobject_class->set_property    = meta_plugin_set_property;
-  gobject_class->get_property    = meta_plugin_get_property;
-
-  g_object_class_install_property (gobject_class,
-                                   PROP_SCREEN,
-                                   g_param_spec_object ("screen",
-                                                        "MetaScreen",
-                                                        "MetaScreen",
-                                                        META_TYPE_SCREEN,
-                                                        G_PARAM_READWRITE));
-
-  g_object_class_install_property (gobject_class,
-				   PROP_DEBUG_MODE,
-				   g_param_spec_boolean ("debug-mode",
-                                                      "Debug Mode",
-                                                      "Debug Mode",
-                                                      FALSE,
-                                                      G_PARAM_READABLE));
-
-  g_type_class_add_private (gobject_class, sizeof (MetaPluginPrivate));
+  g_type_class_add_private (klass, sizeof (MetaPluginPrivate));
 }
 
 static void
@@ -139,22 +64,6 @@ meta_plugin_init (MetaPlugin *self)
   self->priv = META_PLUGIN_GET_PRIVATE (self);
 }
 
-gboolean
-meta_plugin_running  (MetaPlugin *plugin)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
-
-  return (priv->running > 0);
-}
-
-gboolean
-meta_plugin_debug_mode (MetaPlugin *plugin)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
-
-  return priv->debug;
-}
-
 const MetaPluginInfo *
 meta_plugin_get_info (MetaPlugin *plugin)
 {
@@ -166,46 +75,34 @@ meta_plugin_get_info (MetaPlugin *plugin)
   return NULL;
 }
 
-/**
- * _meta_plugin_effect_started:
- * @plugin: the plugin
- *
- * Mark that an effect has started for the plugin. This is called
- * internally by MetaPluginManager.
- */
-void
-_meta_plugin_effect_started (MetaPlugin *plugin)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
-
-  priv->running++;
-}
-
 gboolean
 _meta_plugin_xevent_filter (MetaPlugin *plugin,
                             XEvent     *xev)
 {
   MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
 
+  /* When mutter is running as a wayland compositor, things like input
+   * events just come directly from clutter so it won't have disabled
+   * clutter's event retrieval and won't need to forward it events (if
+   * it did it would lead to recursion). Also when running as a
+   * wayland compositor we shouldn't be assuming that we're running
+   * with the clutter x11 backend.
+   */
+
   if (klass->xevent_filter && klass->xevent_filter (plugin, xev))
     return TRUE;
-  else
+  else if (!meta_is_wayland_compositor ())
     return clutter_x11_handle_event (xev) != CLUTTER_X11_FILTER_CONTINUE;
+  else
+    return FALSE;
 }
 
 void
 meta_plugin_switch_workspace_completed (MetaPlugin *plugin)
 {
   MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
-
   MetaScreen *screen = priv->screen;
 
-  if (priv->running-- < 0)
-    {
-      g_warning ("Error in running effect accounting, adjusting.");
-      priv->running = 0;
-    }
-
   meta_switch_workspace_completed (screen);
 }
 
@@ -214,26 +111,6 @@ meta_plugin_window_effect_completed (MetaPlugin      *plugin,
                                      MetaWindowActor *actor,
                                      unsigned long    event)
 {
-  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
-
-  if (priv->running-- < 0)
-    {
-      g_warning ("Error in running effect accounting, adjusting.");
-      priv->running = 0;
-    }
-
-  if (!actor)
-    {
-      const MetaPluginInfo *info;
-      const gchar            *name = NULL;
-
-      if (plugin && (info = meta_plugin_get_info (plugin)))
-        name = info->name;
-
-      g_warning ("Plugin [%s] passed NULL for actor!",
-                 name ? name : "unknown");
-    }
-
   meta_window_actor_effect_completed (actor, event);
 }
 
@@ -328,9 +205,7 @@ meta_plugin_end_modal (MetaPlugin *plugin,
  * meta_plugin_get_screen:
  * @plugin: a #MetaPlugin
  *
- * Gets the #MetaScreen corresponding to a plugin. Each plugin instance
- * is associated with exactly one screen; if Metacity is managing
- * multiple screens, multiple plugin instances will be created.
+ * Gets the #MetaScreen corresponding to a plugin.
  *
  * Return value: (transfer none): the #MetaScreen for the plugin
  */
@@ -342,6 +217,15 @@ meta_plugin_get_screen (MetaPlugin *plugin)
   return priv->screen;
 }
 
+void
+_meta_plugin_set_screen (MetaPlugin *plugin,
+                         MetaScreen *screen)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  priv->screen = screen;
+}
+
 void
 meta_plugin_complete_display_change (MetaPlugin *plugin,
                                      gboolean    ok)

src/compositor/meta-shaped-texture.c

@@ -28,6 +28,7 @@
 #include <config.h>
 
 #include <meta/meta-shaped-texture.h>
+#include <meta/util.h>
 #include "clutter-utils.h"
 #include "meta-texture-tower.h"
 
@@ -42,8 +43,6 @@
 static void meta_shaped_texture_dispose  (GObject    *object);
 
 static void meta_shaped_texture_paint (ClutterActor       *actor);
-static void meta_shaped_texture_pick  (ClutterActor       *actor,
-				       const ClutterColor *color);
 
 static void meta_shaped_texture_get_preferred_width (ClutterActor *self,
                                                      gfloat        for_height,
@@ -73,8 +72,6 @@ struct _MetaShapedTexturePrivate
   CoglTexture *texture;
   CoglTexture *mask_texture;
 
-  cairo_region_t *input_shape_region;
-
   /* The region containing only fully opaque pixels */
   cairo_region_t *opaque_region;
 
@@ -98,7 +95,6 @@ meta_shaped_texture_class_init (MetaShapedTextureClass *klass)
   actor_class->get_preferred_width = meta_shaped_texture_get_preferred_width;
   actor_class->get_preferred_height = meta_shaped_texture_get_preferred_height;
   actor_class->paint = meta_shaped_texture_paint;
-  actor_class->pick = meta_shaped_texture_pick;
   actor_class->get_paint_volume = meta_shaped_texture_get_paint_volume;
 
   g_type_class_add_private (klass, sizeof (MetaShapedTexturePrivate));
@@ -232,6 +228,54 @@ paint_clipped_rectangle (CoglFramebuffer       *fb,
                                                  &coords[0], 8);
 }
 
+static void
+set_cogl_texture (MetaShapedTexture *stex,
+                  CoglTexture       *cogl_tex)
+{
+  MetaShapedTexturePrivate *priv;
+  guint width, height;
+
+  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
+
+  priv = stex->priv;
+
+  if (priv->texture)
+    cogl_object_unref (priv->texture);
+
+  priv->texture = cogl_tex;
+
+  if (cogl_tex != NULL)
+    {
+      cogl_object_ref (cogl_tex);
+      width = cogl_texture_get_width (COGL_TEXTURE (cogl_tex));
+      height = cogl_texture_get_height (COGL_TEXTURE (cogl_tex));
+
+      if (width != priv->tex_width ||
+          height != priv->tex_height)
+        {
+          priv->tex_width = width;
+          priv->tex_height = height;
+
+          clutter_actor_queue_relayout (CLUTTER_ACTOR (stex));
+        }
+    }
+  else
+    {
+      /* size changed to 0 going to an invalid handle */
+      priv->tex_width = 0;
+      priv->tex_height = 0;
+      clutter_actor_queue_relayout (CLUTTER_ACTOR (stex));
+    }
+
+  /* NB: We don't queue a redraw of the actor here because we don't
+   * know how much of the buffer has changed with respect to the
+   * previous buffer. We only queue a redraw in response to surface
+   * damage. */
+
+  if (priv->create_mipmaps)
+    meta_texture_tower_set_base_texture (priv->paint_tower, cogl_tex);
+}
+
 static void
 meta_shaped_texture_paint (ClutterActor *actor)
 {
@@ -415,71 +459,6 @@ meta_shaped_texture_paint (ClutterActor *actor)
     cairo_region_destroy (blended_region);
 }
 
-static void
-meta_shaped_texture_pick (ClutterActor       *actor,
-			  const ClutterColor *color)
-{
-  MetaShapedTexture *stex = (MetaShapedTexture *) actor;
-  MetaShapedTexturePrivate *priv = stex->priv;
-
-  if (!clutter_actor_should_pick_paint (actor) ||
-      (priv->clip_region && cairo_region_is_empty (priv->clip_region)))
-    return;
-
-  /* If there is no region then use the regular pick */
-  if (priv->input_shape_region == NULL)
-    CLUTTER_ACTOR_CLASS (meta_shaped_texture_parent_class)->pick (actor, color);
-  else
-    {
-      int n_rects;
-      float *rectangles;
-      int i;
-      CoglPipeline *pipeline;
-      CoglContext *ctx;
-      CoglFramebuffer *fb;
-      CoglColor cogl_color;
-
-      /* Note: We don't bother trying to intersect the pick and clip regions
-       * since needing to copy the region, do the intersection, and probably
-       * increase the number of rectangles seems more likely to have a negative
-       * effect.
-       *
-       * NB: Most of the time when just using rectangles for picking then
-       * picking shouldn't involve any rendering, and minimizing the number of
-       * rectangles has more benefit than reducing the area of the pick
-       * region.
-       */
-
-      n_rects = cairo_region_num_rectangles (priv->input_shape_region);
-      rectangles = g_alloca (sizeof (float) * 4 * n_rects);
-
-      for (i = 0; i < n_rects; i++)
-        {
-          cairo_rectangle_int_t rect;
-          int pos = i * 4;
-
-          cairo_region_get_rectangle (priv->input_shape_region, i, &rect);
-
-          rectangles[pos] = rect.x;
-          rectangles[pos + 1] = rect.y;
-          rectangles[pos + 2] = rect.x + rect.width;
-          rectangles[pos + 3] = rect.y + rect.height;
-        }
-
-      ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
-      fb = cogl_get_draw_framebuffer ();
-
-      cogl_color_init_from_4ub (&cogl_color, color->red, color->green, color->blue, color->alpha);
-
-      pipeline = cogl_pipeline_new (ctx);
-      cogl_pipeline_set_color (pipeline, &cogl_color);
-
-      cogl_framebuffer_draw_rectangles (fb, pipeline,
-                                        rectangles, n_rects);
-      cogl_object_unref (pipeline);
-    }
-}
-
 static void
 meta_shaped_texture_get_preferred_width (ClutterActor *self,
                                          gfloat        for_height,
@@ -699,53 +678,6 @@ meta_shaped_texture_update_area (MetaShapedTexture *stex,
     }
 }
 
-static void
-set_cogl_texture (MetaShapedTexture *stex,
-                  CoglTexture       *cogl_tex)
-{
-  MetaShapedTexturePrivate *priv;
-  guint width, height;
-
-  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
-
-  priv = stex->priv;
-
-  if (priv->texture != NULL)
-    cogl_object_unref (priv->texture);
-
-  priv->texture = cogl_tex;
-
-  if (cogl_tex != NULL)
-    {
-      width = cogl_texture_get_width (COGL_TEXTURE (cogl_tex));
-      height = cogl_texture_get_height (COGL_TEXTURE (cogl_tex));
-
-      if (width != priv->tex_width ||
-          height != priv->tex_height)
-        {
-          priv->tex_width = width;
-          priv->tex_height = height;
-
-          clutter_actor_queue_relayout (CLUTTER_ACTOR (stex));
-        }
-    }
-  else
-    {
-      /* size changed to 0 going to an invalid texture */
-      priv->tex_width = 0;
-      priv->tex_height = 0;
-      clutter_actor_queue_relayout (CLUTTER_ACTOR (stex));
-    }
-
-  /* NB: We don't queue a redraw of the actor here because we don't
-   * know how much of the buffer has changed with respect to the
-   * previous buffer. We only queue a redraw in response to surface
-   * damage. */
-
-  if (priv->create_mipmaps)
-    meta_texture_tower_set_base_texture (priv->paint_tower, cogl_tex);
-}
-
 /**
  * meta_shaped_texture_set_texture:
  * @stex: The #MetaShapedTexture
@@ -773,41 +705,6 @@ meta_shaped_texture_get_texture (MetaShapedTexture *stex)
   return COGL_TEXTURE (stex->priv->texture);
 }
 
-/**
- * meta_shaped_texture_set_input_shape_region:
- * @stex: a #MetaShapedTexture
- * @shape_region: the region of the texture that should respond to
- *    input.
- *
- * Determines what region of the texture should accept input. For
- * X based windows this is defined by the ShapeInput region of the
- * window.
- */
-void
-meta_shaped_texture_set_input_shape_region (MetaShapedTexture *stex,
-                                            cairo_region_t    *shape_region)
-{
-  MetaShapedTexturePrivate *priv;
-
-  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
-
-  priv = stex->priv;
-
-  if (priv->input_shape_region != NULL)
-    {
-      cairo_region_destroy (priv->input_shape_region);
-      priv->input_shape_region = NULL;
-    }
-
-  if (shape_region != NULL)
-    {
-      cairo_region_reference (shape_region);
-      priv->input_shape_region = shape_region;
-    }
-
-  clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
-}
-
 /**
  * meta_shaped_texture_set_opaque_region:
  * @stex: a #MetaShapedTexture

src/compositor/meta-surface-actor-wayland.c

@@ -0,0 +1,165 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright (C) 2013 Red Hat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Written by:
+ *     Jasper St. Pierre <jstpierre@mecheye.net>
+ */
+
+#include "config.h"
+
+#include "meta-surface-actor-wayland.h"
+
+#include <cogl/cogl-wayland-server.h>
+#include "meta-shaped-texture-private.h"
+
+#include "wayland/meta-wayland-private.h"
+
+struct _MetaSurfaceActorWaylandPrivate
+{
+  MetaWaylandSurface *surface;
+  MetaWaylandBuffer *buffer;
+};
+typedef struct _MetaSurfaceActorWaylandPrivate MetaSurfaceActorWaylandPrivate;
+
+G_DEFINE_TYPE_WITH_PRIVATE (MetaSurfaceActorWayland, meta_surface_actor_wayland, META_TYPE_SURFACE_ACTOR)
+
+static void
+meta_surface_actor_wayland_process_damage (MetaSurfaceActor *actor,
+                                           int x, int y, int width, int height)
+{
+  MetaSurfaceActorWayland *self = META_SURFACE_ACTOR_WAYLAND (actor);
+  MetaSurfaceActorWaylandPrivate *priv = meta_surface_actor_wayland_get_instance_private (self);
+
+  struct wl_resource *resource = priv->buffer->resource;
+  struct wl_shm_buffer *shm_buffer = wl_shm_buffer_get (resource);
+
+  if (shm_buffer)
+    {
+      CoglTexture2D *texture = COGL_TEXTURE_2D (priv->buffer->texture);
+      cogl_wayland_texture_set_region_from_shm_buffer (texture, x, y, width, height, shm_buffer, x, y, 0, NULL);
+    }
+
+  meta_surface_actor_update_area (META_SURFACE_ACTOR (self), x, y, width, height);
+}
+
+static void
+meta_surface_actor_wayland_pre_paint (MetaSurfaceActor *actor)
+{
+}
+
+static gboolean
+meta_surface_actor_wayland_is_argb32 (MetaSurfaceActor *actor)
+{
+  /* XXX -- look at the SHM buffer format. */
+  return TRUE;
+}
+
+static gboolean
+meta_surface_actor_wayland_is_visible (MetaSurfaceActor *actor)
+{
+  /* TODO: ensure that the buffer isn't NULL, implement
+   * wayland mapping semantics */
+  return TRUE;
+}
+
+static gboolean
+meta_surface_actor_wayland_should_unredirect (MetaSurfaceActor *actor)
+{
+  return FALSE;
+}
+
+static void
+meta_surface_actor_wayland_set_unredirected (MetaSurfaceActor *actor,
+                                             gboolean          unredirected)
+{
+  /* Do nothing. In the future, we'll use KMS to set this
+   * up as a hardware overlay or something. */
+}
+
+static gboolean
+meta_surface_actor_wayland_is_unredirected (MetaSurfaceActor *actor)
+{
+  return FALSE;
+}
+
+static MetaWindow *
+meta_surface_actor_wayland_get_window (MetaSurfaceActor *actor)
+{
+  MetaSurfaceActorWaylandPrivate *priv = meta_surface_actor_wayland_get_instance_private (META_SURFACE_ACTOR_WAYLAND (actor));
+
+  return priv->surface->window;
+}
+
+static void
+meta_surface_actor_wayland_class_init (MetaSurfaceActorWaylandClass *klass)
+{
+  MetaSurfaceActorClass *surface_actor_class = META_SURFACE_ACTOR_CLASS (klass);
+
+  surface_actor_class->process_damage = meta_surface_actor_wayland_process_damage;
+  surface_actor_class->pre_paint = meta_surface_actor_wayland_pre_paint;
+  surface_actor_class->is_argb32 = meta_surface_actor_wayland_is_argb32;
+  surface_actor_class->is_visible = meta_surface_actor_wayland_is_visible;
+
+  surface_actor_class->should_unredirect = meta_surface_actor_wayland_should_unredirect;
+  surface_actor_class->set_unredirected = meta_surface_actor_wayland_set_unredirected;
+  surface_actor_class->is_unredirected = meta_surface_actor_wayland_is_unredirected;
+
+  surface_actor_class->get_window = meta_surface_actor_wayland_get_window;
+}
+
+static void
+meta_surface_actor_wayland_init (MetaSurfaceActorWayland *self)
+{
+}
+
+MetaSurfaceActor *
+meta_surface_actor_wayland_new (MetaWaylandSurface *surface)
+{
+  MetaSurfaceActorWayland *self = g_object_new (META_TYPE_SURFACE_ACTOR_WAYLAND, NULL);
+  MetaSurfaceActorWaylandPrivate *priv = meta_surface_actor_wayland_get_instance_private (self);
+
+  g_assert (meta_is_wayland_compositor ());
+
+  priv->surface = surface;
+
+  return META_SURFACE_ACTOR (self);
+}
+
+void
+meta_surface_actor_wayland_set_buffer (MetaSurfaceActorWayland *self,
+                                       MetaWaylandBuffer       *buffer)
+{
+  MetaSurfaceActorWaylandPrivate *priv = meta_surface_actor_wayland_get_instance_private (self);
+  MetaShapedTexture *stex = meta_surface_actor_get_texture (META_SURFACE_ACTOR (self));
+
+  priv->buffer = buffer;
+
+  if (buffer)
+    meta_shaped_texture_set_texture (stex, buffer->texture);
+  else
+    meta_shaped_texture_set_texture (stex, NULL);
+}
+
+MetaWaylandSurface *
+meta_surface_actor_wayland_get_surface (MetaSurfaceActorWayland *self)
+{
+  MetaSurfaceActorWaylandPrivate *priv = meta_surface_actor_wayland_get_instance_private (self);
+  return priv->surface;
+}

src/compositor/meta-surface-actor-wayland.h

@@ -0,0 +1,66 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright (C) 2013 Red Hat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Written by:
+ *     Jasper St. Pierre <jstpierre@mecheye.net>
+ */
+
+#ifndef __META_SURFACE_ACTOR_WAYLAND_H__
+#define __META_SURFACE_ACTOR_WAYLAND_H__
+
+#include <glib-object.h>
+
+#include "meta-surface-actor.h"
+
+#include "wayland/meta-wayland.h"
+
+G_BEGIN_DECLS
+
+#define META_TYPE_SURFACE_ACTOR_WAYLAND            (meta_surface_actor_wayland_get_type ())
+#define META_SURFACE_ACTOR_WAYLAND(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_SURFACE_ACTOR_WAYLAND, MetaSurfaceActorWayland))
+#define META_SURFACE_ACTOR_WAYLAND_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_SURFACE_ACTOR_WAYLAND, MetaSurfaceActorWaylandClass))
+#define META_IS_SURFACE_ACTOR_WAYLAND(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_SURFACE_ACTOR_WAYLAND))
+#define META_IS_SURFACE_ACTOR_WAYLAND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_SURFACE_ACTOR_WAYLAND))
+#define META_SURFACE_ACTOR_WAYLAND_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_SURFACE_ACTOR_WAYLAND, MetaSurfaceActorWaylandClass))
+
+typedef struct _MetaSurfaceActorWayland      MetaSurfaceActorWayland;
+typedef struct _MetaSurfaceActorWaylandClass MetaSurfaceActorWaylandClass;
+
+struct _MetaSurfaceActorWayland
+{
+  MetaSurfaceActor parent;
+};
+
+struct _MetaSurfaceActorWaylandClass
+{
+  MetaSurfaceActorClass parent_class;
+};
+
+GType meta_surface_actor_wayland_get_type (void);
+
+MetaSurfaceActor * meta_surface_actor_wayland_new (MetaWaylandSurface *surface);
+MetaWaylandSurface * meta_surface_actor_wayland_get_surface (MetaSurfaceActorWayland *self);
+
+void meta_surface_actor_wayland_set_buffer (MetaSurfaceActorWayland *self,
+                                            MetaWaylandBuffer         *buffer);
+
+G_END_DECLS
+
+#endif /* __META_SURFACE_ACTOR_WAYLAND_H__ */

src/compositor/meta-surface-actor-x11.c

@@ -0,0 +1,486 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright (C) 2013 Red Hat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Written by:
+ *     Owen Taylor <otaylor@redhat.com>
+ *     Jasper St. Pierre <jstpierre@mecheye.net>
+ */
+
+#include "config.h"
+
+#include "meta-surface-actor-x11.h"
+
+#include <X11/extensions/Xcomposite.h>
+#include <X11/extensions/Xrender.h>
+#include <cogl/cogl-texture-pixmap-x11.h>
+
+#include <meta/errors.h>
+#include "window-private.h"
+#include "meta-shaped-texture-private.h"
+#include "meta-cullable.h"
+
+struct _MetaSurfaceActorX11Private
+{
+  MetaWindow *window;
+
+  MetaDisplay *display;
+
+  CoglTexture *texture;
+  Pixmap pixmap;
+  Damage damage;
+
+  int last_width;
+  int last_height;
+
+  /* This is used to detect fullscreen windows that need to be unredirected */
+  guint full_damage_frames_count;
+  guint does_full_damage  : 1;
+
+  /* Other state... */
+  guint argb32 : 1;
+  guint received_damage : 1;
+  guint size_changed : 1;
+
+  guint unredirected   : 1;
+};
+typedef struct _MetaSurfaceActorX11Private MetaSurfaceActorX11Private;
+
+G_DEFINE_TYPE_WITH_PRIVATE (MetaSurfaceActorX11, meta_surface_actor_x11, META_TYPE_SURFACE_ACTOR)
+
+static void
+free_damage (MetaSurfaceActorX11 *self)
+{
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+  MetaDisplay *display = priv->display;
+  Display *xdisplay = meta_display_get_xdisplay (display);
+
+  if (priv->damage == None)
+    return;
+
+  meta_error_trap_push (display);
+  XDamageDestroy (xdisplay, priv->damage);
+  priv->damage = None;
+  meta_error_trap_pop (display);
+}
+
+static void
+detach_pixmap (MetaSurfaceActorX11 *self)
+{
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+  MetaDisplay *display = priv->display;
+  Display *xdisplay = meta_display_get_xdisplay (display);
+  MetaShapedTexture *stex = meta_surface_actor_get_texture (META_SURFACE_ACTOR (self));
+
+  if (priv->pixmap == None)
+    return;
+
+  /* Get rid of all references to the pixmap before freeing it; it's unclear whether
+   * you are supposed to be able to free a GLXPixmap after freeing the underlying
+   * pixmap, but it certainly doesn't work with current DRI/Mesa
+   */
+  meta_shaped_texture_set_texture (stex, NULL);
+  cogl_flush ();
+
+  meta_error_trap_push (display);
+  XFreePixmap (xdisplay, priv->pixmap);
+  priv->pixmap = None;
+  meta_error_trap_pop (display);
+
+  cogl_object_unref (priv->texture);
+  priv->texture = NULL;
+}
+
+static void
+set_pixmap (MetaSurfaceActorX11 *self,
+            Pixmap               pixmap)
+{
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+
+  CoglContext *ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
+  MetaShapedTexture *stex = meta_surface_actor_get_texture (META_SURFACE_ACTOR (self));
+  CoglTexture *texture;
+
+  g_assert (priv->pixmap == None);
+  priv->pixmap = pixmap;
+
+  texture = COGL_TEXTURE (cogl_texture_pixmap_x11_new (ctx, priv->pixmap, FALSE, NULL));
+
+  if (G_UNLIKELY (!cogl_texture_pixmap_x11_is_using_tfp_extension (COGL_TEXTURE_PIXMAP_X11 (texture))))
+    g_warning ("NOTE: Not using GLX TFP!\n");
+
+  priv->texture = texture;
+  meta_shaped_texture_set_texture (stex, texture);
+}
+
+static void
+update_pixmap (MetaSurfaceActorX11 *self)
+{
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+  MetaDisplay *display = priv->display;
+  Display *xdisplay = meta_display_get_xdisplay (display);
+
+  if (priv->size_changed)
+    {
+      detach_pixmap (self);
+      priv->size_changed = FALSE;
+    }
+
+  if (priv->pixmap == None)
+    {
+      Pixmap new_pixmap;
+      Window xwindow = meta_window_get_toplevel_xwindow (priv->window);
+
+      meta_error_trap_push (display);
+      new_pixmap = XCompositeNameWindowPixmap (xdisplay, xwindow);
+
+      if (meta_error_trap_pop_with_return (display) != Success)
+        {
+          /* Probably a BadMatch if the window isn't viewable; we could
+           * GrabServer/GetWindowAttributes/NameWindowPixmap/UngrabServer/Sync
+           * to avoid this, but there's no reason to take two round trips
+           * when one will do. (We need that Sync if we want to handle failures
+           * for any reason other than !viewable. That's unlikely, but maybe
+           * we'll BadAlloc or something.)
+           */
+          new_pixmap = None;
+        }
+
+      if (new_pixmap == None)
+        {
+          meta_verbose ("Unable to get named pixmap for %s\n",
+                        meta_window_get_description (priv->window));
+          return;
+        }
+
+      set_pixmap (self, new_pixmap);
+    }
+}
+
+static gboolean
+is_visible (MetaSurfaceActorX11 *self)
+{
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+  return (priv->pixmap != None) && !priv->unredirected;
+}
+
+static void
+damage_area (MetaSurfaceActorX11 *self,
+             int x, int y, int width, int height)
+{
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+
+  if (!is_visible (self))
+    return;
+
+  cogl_texture_pixmap_x11_update_area (priv->texture, x, y, width, height);
+  meta_surface_actor_update_area (META_SURFACE_ACTOR (self), x, y, width, height);
+}
+
+static void
+meta_surface_actor_x11_process_damage (MetaSurfaceActor *actor,
+                                       int x, int y, int width, int height)
+{
+  MetaSurfaceActorX11 *self = META_SURFACE_ACTOR_X11 (actor);
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+
+  priv->received_damage = TRUE;
+
+  if (meta_window_is_fullscreen (priv->window) && !priv->unredirected && !priv->does_full_damage)
+    {
+      MetaRectangle window_rect;
+      meta_window_get_frame_rect (priv->window, &window_rect);
+
+      if (window_rect.x == x &&
+          window_rect.y == y &&
+          window_rect.width == width &&
+          window_rect.height == height)
+        priv->full_damage_frames_count++;
+      else
+        priv->full_damage_frames_count = 0;
+
+      if (priv->full_damage_frames_count >= 100)
+        priv->does_full_damage = TRUE;
+    }
+
+  /* Drop damage event for unredirected windows */
+  if (priv->unredirected)
+    return;
+
+  damage_area (self, x, y, width, height);
+}
+
+static void
+meta_surface_actor_x11_pre_paint (MetaSurfaceActor *actor)
+{
+  MetaSurfaceActorX11 *self = META_SURFACE_ACTOR_X11 (actor);
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+  MetaDisplay *display = priv->display;
+  Display *xdisplay = meta_display_get_xdisplay (display);
+
+  if (priv->received_damage)
+    {
+      meta_error_trap_push (display);
+      XDamageSubtract (xdisplay, priv->damage, None, None);
+      meta_error_trap_pop (display);
+
+      /* We need to make sure that any X drawing that happens before the
+       * XDamageSubtract() above is visible to subsequent GL rendering;
+       * the only standardized way to do this is EXT_x11_sync_object,
+       * which isn't yet widely available. For now, we count on details
+       * of Xorg and the open source drivers, and hope for the best
+       * otherwise.
+       *
+       * Xorg and open source driver specifics:
+       *
+       * The X server makes sure to flush drawing to the kernel before
+       * sending out damage events, but since we use DamageReportBoundingBox
+       * there may be drawing between the last damage event and the
+       * XDamageSubtract() that needs to be flushed as well.
+       *
+       * Xorg always makes sure that drawing is flushed to the kernel
+       * before writing events or responses to the client, so any round trip
+       * request at this point is sufficient to flush the GLX buffers.
+       */
+      XSync (xdisplay, False);
+
+      priv->received_damage = FALSE;
+    }
+
+  update_pixmap (self);
+}
+
+static void
+update_is_argb32 (MetaSurfaceActorX11 *self)
+{
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+  MetaDisplay *display = priv->display;
+  Display *xdisplay = meta_display_get_xdisplay (display);
+
+  XRenderPictFormat *format;
+  format = XRenderFindVisualFormat (xdisplay, priv->window->xvisual);
+
+  priv->argb32 = (format && format->type == PictTypeDirect && format->direct.alphaMask);
+}
+
+static gboolean
+meta_surface_actor_x11_is_argb32 (MetaSurfaceActor *actor)
+{
+  MetaSurfaceActorX11 *self = META_SURFACE_ACTOR_X11 (actor);
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+
+  return priv->argb32;
+}
+
+static gboolean
+meta_surface_actor_x11_is_visible (MetaSurfaceActor *actor)
+{
+  MetaSurfaceActorX11 *self = META_SURFACE_ACTOR_X11 (actor);
+  return is_visible (self);
+}
+
+static gboolean
+meta_surface_actor_x11_should_unredirect (MetaSurfaceActor *actor)
+{
+  MetaSurfaceActorX11 *self = META_SURFACE_ACTOR_X11 (actor);
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+
+  MetaWindow *window = priv->window;
+
+  if (meta_window_requested_dont_bypass_compositor (window))
+    return FALSE;
+
+  if (window->opacity != 0xFF)
+    return FALSE;
+
+  if (window->shape_region != NULL)
+    return FALSE;
+
+  if (priv->argb32 && !meta_window_requested_bypass_compositor (window))
+    return FALSE;
+
+  if (!meta_window_is_monitor_sized (window))
+    return FALSE;
+
+  if (meta_window_requested_bypass_compositor (window))
+    return TRUE;
+
+  if (meta_window_is_override_redirect (window))
+    return TRUE;
+
+  if (priv->does_full_damage)
+    return TRUE;
+
+  return FALSE;
+}
+
+static void
+sync_unredirected (MetaSurfaceActorX11 *self)
+{
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+  MetaDisplay *display = priv->display;
+  Display *xdisplay = meta_display_get_xdisplay (display);
+  Window xwindow = meta_window_get_toplevel_xwindow (priv->window);
+
+  meta_error_trap_push (display);
+
+  if (priv->unredirected)
+    {
+      detach_pixmap (self);
+      XCompositeUnredirectWindow (xdisplay, xwindow, CompositeRedirectManual);
+    }
+  else
+    {
+      XCompositeRedirectWindow (xdisplay, xwindow, CompositeRedirectManual);
+    }
+
+  meta_error_trap_pop (display);
+}
+
+static void
+meta_surface_actor_x11_set_unredirected (MetaSurfaceActor *actor,
+                                         gboolean          unredirected)
+{
+  MetaSurfaceActorX11 *self = META_SURFACE_ACTOR_X11 (actor);
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+
+  if (priv->unredirected == unredirected)
+    return;
+
+  priv->unredirected = unredirected;
+  sync_unredirected (self);
+}
+
+static gboolean
+meta_surface_actor_x11_is_unredirected (MetaSurfaceActor *actor)
+{
+  MetaSurfaceActorX11 *self = META_SURFACE_ACTOR_X11 (actor);
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+
+  return priv->unredirected;
+}
+
+static void
+meta_surface_actor_x11_dispose (GObject *object)
+{
+  MetaSurfaceActorX11 *self = META_SURFACE_ACTOR_X11 (object);
+
+  detach_pixmap (self);
+  free_damage (self);
+
+  G_OBJECT_CLASS (meta_surface_actor_x11_parent_class)->dispose (object);
+}
+
+static MetaWindow *
+meta_surface_actor_x11_get_window (MetaSurfaceActor *actor)
+{
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (META_SURFACE_ACTOR_X11 (actor));
+
+  return priv->window;
+}
+
+static void
+meta_surface_actor_x11_class_init (MetaSurfaceActorX11Class *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  MetaSurfaceActorClass *surface_actor_class = META_SURFACE_ACTOR_CLASS (klass);
+
+  object_class->dispose = meta_surface_actor_x11_dispose;
+
+  surface_actor_class->process_damage = meta_surface_actor_x11_process_damage;
+  surface_actor_class->pre_paint = meta_surface_actor_x11_pre_paint;
+  surface_actor_class->is_argb32 = meta_surface_actor_x11_is_argb32;
+  surface_actor_class->is_visible = meta_surface_actor_x11_is_visible;
+
+  surface_actor_class->should_unredirect = meta_surface_actor_x11_should_unredirect;
+  surface_actor_class->set_unredirected = meta_surface_actor_x11_set_unredirected;
+  surface_actor_class->is_unredirected = meta_surface_actor_x11_is_unredirected;
+
+  surface_actor_class->get_window = meta_surface_actor_x11_get_window;
+}
+
+static void
+meta_surface_actor_x11_init (MetaSurfaceActorX11 *self)
+{
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+
+  priv->last_width = -1;
+  priv->last_height = -1;
+}
+
+static void
+create_damage (MetaSurfaceActorX11 *self)
+{
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+  Display *xdisplay = meta_display_get_xdisplay (priv->display);
+  Window xwindow = meta_window_get_toplevel_xwindow (priv->window);
+
+  priv->damage = XDamageCreate (xdisplay, xwindow, XDamageReportBoundingBox);
+}
+
+static void
+window_decorated_notify (MetaWindow *window,
+                         GParamSpec *pspec,
+                         gpointer    user_data)
+{
+  MetaSurfaceActorX11 *self = META_SURFACE_ACTOR_X11 (user_data);
+
+  free_damage (self);
+  create_damage (self);
+}
+
+MetaSurfaceActor *
+meta_surface_actor_x11_new (MetaWindow *window)
+{
+  MetaSurfaceActorX11 *self = g_object_new (META_TYPE_SURFACE_ACTOR_X11, NULL);
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+  MetaDisplay *display = meta_window_get_display (window);
+
+  g_assert (!meta_is_wayland_compositor ());
+
+  priv->window = window;
+  priv->display = display;
+
+  create_damage (self);
+  g_signal_connect_object (priv->window, "notify::decorated",
+                           G_CALLBACK (window_decorated_notify), self, 0);
+
+  update_is_argb32 (self);
+
+  priv->unredirected = FALSE;
+  sync_unredirected (self);
+
+  clutter_actor_set_reactive (CLUTTER_ACTOR (self), TRUE);
+  return META_SURFACE_ACTOR (self);
+}
+
+void
+meta_surface_actor_x11_set_size (MetaSurfaceActorX11 *self,
+                                 int width, int height)
+{
+  MetaSurfaceActorX11Private *priv = meta_surface_actor_x11_get_instance_private (self);
+
+  if (priv->last_width == width &&
+      priv->last_height == height)
+    return;
+
+  priv->size_changed = TRUE;
+  priv->last_width = width;
+  priv->last_height = height;
+}

src/compositor/meta-surface-actor-x11.h

@@ -0,0 +1,69 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright (C) 2013 Red Hat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Written by:
+ *     Owen Taylor <otaylor@redhat.com>
+ *     Jasper St. Pierre <jstpierre@mecheye.net>
+ */
+
+#ifndef __META_SURFACE_ACTOR_X11_H__
+#define __META_SURFACE_ACTOR_X11_H__
+
+#include <glib-object.h>
+
+#include "meta-surface-actor.h"
+
+#include <X11/extensions/Xdamage.h>
+
+#include <meta/display.h>
+#include <meta/window.h>
+
+G_BEGIN_DECLS
+
+#define META_TYPE_SURFACE_ACTOR_X11            (meta_surface_actor_x11_get_type ())
+#define META_SURFACE_ACTOR_X11(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_SURFACE_ACTOR_X11, MetaSurfaceActorX11))
+#define META_SURFACE_ACTOR_X11_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_SURFACE_ACTOR_X11, MetaSurfaceActorX11Class))
+#define META_IS_SURFACE_ACTOR_X11(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_SURFACE_ACTOR_X11))
+#define META_IS_SURFACE_ACTOR_X11_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_SURFACE_ACTOR_X11))
+#define META_SURFACE_ACTOR_X11_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_SURFACE_ACTOR_X11, MetaSurfaceActorX11Class))
+
+typedef struct _MetaSurfaceActorX11      MetaSurfaceActorX11;
+typedef struct _MetaSurfaceActorX11Class MetaSurfaceActorX11Class;
+
+struct _MetaSurfaceActorX11
+{
+  MetaSurfaceActor parent;
+};
+
+struct _MetaSurfaceActorX11Class
+{
+  MetaSurfaceActorClass parent_class;
+};
+
+GType meta_surface_actor_x11_get_type (void);
+
+MetaSurfaceActor * meta_surface_actor_x11_new (MetaWindow *window);
+
+void meta_surface_actor_x11_set_size (MetaSurfaceActorX11 *self,
+                                      int width, int height);
+
+G_END_DECLS
+
+#endif /* __META_SURFACE_ACTOR_X11_H__ */

src/compositor/meta-surface-actor.c

@@ -0,0 +1,319 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/**
+ * SECTION:meta-surface-actor
+ * @title: MetaSurfaceActor
+ * @short_description: An actor representing a surface in the scene graph
+ *
+ * A surface can be either a shaped texture, or a group of shaped texture,
+ * used to draw the content of a window.
+ */
+
+#include <config.h>
+
+#include "meta-surface-actor.h"
+
+#include <clutter/clutter.h>
+#include <meta/meta-shaped-texture.h>
+#include "meta-cullable.h"
+#include "meta-shaped-texture-private.h"
+
+struct _MetaSurfaceActorPrivate
+{
+  MetaShapedTexture *texture;
+
+  cairo_region_t *input_region;
+
+  /* Freeze/thaw accounting */
+  guint needs_damage_all : 1;
+  guint frozen : 1;
+};
+
+static void cullable_iface_init (MetaCullableInterface *iface);
+
+G_DEFINE_ABSTRACT_TYPE_WITH_CODE (MetaSurfaceActor, meta_surface_actor, CLUTTER_TYPE_ACTOR,
+                                  G_IMPLEMENT_INTERFACE (META_TYPE_CULLABLE, cullable_iface_init));
+
+enum {
+  REPAINT_SCHEDULED,
+
+  LAST_SIGNAL,
+};
+
+static guint signals[LAST_SIGNAL];
+
+gboolean
+meta_surface_actor_get_unobscured_bounds (MetaSurfaceActor      *self,
+                                          cairo_rectangle_int_t *unobscured_bounds)
+{
+  MetaSurfaceActorPrivate *priv = self->priv;
+  return meta_shaped_texture_get_unobscured_bounds (priv->texture, unobscured_bounds);
+}
+
+static void
+meta_surface_actor_pick (ClutterActor       *actor,
+                         const ClutterColor *color)
+{
+  MetaSurfaceActor *self = META_SURFACE_ACTOR (actor);
+  MetaSurfaceActorPrivate *priv = self->priv;
+
+  if (!clutter_actor_should_pick_paint (actor))
+    return;
+
+  /* If there is no region then use the regular pick */
+  if (priv->input_region == NULL)
+    CLUTTER_ACTOR_CLASS (meta_surface_actor_parent_class)->pick (actor, color);
+  else
+    {
+      int n_rects;
+      float *rectangles;
+      int i;
+      CoglPipeline *pipeline;
+      CoglContext *ctx;
+      CoglFramebuffer *fb;
+      CoglColor cogl_color;
+
+      n_rects = cairo_region_num_rectangles (priv->input_region);
+      rectangles = g_alloca (sizeof (float) * 4 * n_rects);
+
+      for (i = 0; i < n_rects; i++)
+        {
+          cairo_rectangle_int_t rect;
+          int pos = i * 4;
+
+          cairo_region_get_rectangle (priv->input_region, i, &rect);
+
+          rectangles[pos + 0] = rect.x;
+          rectangles[pos + 1] = rect.y;
+          rectangles[pos + 2] = rect.x + rect.width;
+          rectangles[pos + 3] = rect.y + rect.height;
+        }
+
+      ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
+      fb = cogl_get_draw_framebuffer ();
+
+      cogl_color_init_from_4ub (&cogl_color, color->red, color->green, color->blue, color->alpha);
+
+      pipeline = cogl_pipeline_new (ctx);
+      cogl_pipeline_set_color (pipeline, &cogl_color);
+      cogl_framebuffer_draw_rectangles (fb, pipeline, rectangles, n_rects);
+      cogl_object_unref (pipeline);
+    }
+}
+
+static void
+meta_surface_actor_dispose (GObject *object)
+{
+  MetaSurfaceActor *self = META_SURFACE_ACTOR (object);
+  MetaSurfaceActorPrivate *priv = self->priv;
+
+  g_clear_pointer (&priv->input_region, cairo_region_destroy);
+
+  G_OBJECT_CLASS (meta_surface_actor_parent_class)->dispose (object);
+}
+
+static void
+meta_surface_actor_class_init (MetaSurfaceActorClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
+
+  object_class->dispose = meta_surface_actor_dispose;
+  actor_class->pick = meta_surface_actor_pick;
+
+  signals[REPAINT_SCHEDULED] = g_signal_new ("repaint-scheduled",
+                                             G_TYPE_FROM_CLASS (object_class),
+                                             G_SIGNAL_RUN_LAST,
+                                             0,
+                                             NULL, NULL, NULL,
+                                             G_TYPE_NONE, 0);
+
+  g_type_class_add_private (klass, sizeof (MetaSurfaceActorPrivate));
+}
+
+static void
+meta_surface_actor_cull_out (MetaCullable   *cullable,
+                             cairo_region_t *unobscured_region,
+                             cairo_region_t *clip_region)
+{
+  meta_cullable_cull_out_children (cullable, unobscured_region, clip_region);
+}
+
+static void
+meta_surface_actor_reset_culling (MetaCullable *cullable)
+{
+  meta_cullable_reset_culling_children (cullable);
+}
+
+static void
+cullable_iface_init (MetaCullableInterface *iface)
+{
+  iface->cull_out = meta_surface_actor_cull_out;
+  iface->reset_culling = meta_surface_actor_reset_culling;
+}
+
+static void
+meta_surface_actor_init (MetaSurfaceActor *self)
+{
+  MetaSurfaceActorPrivate *priv;
+
+  priv = self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
+                                                   META_TYPE_SURFACE_ACTOR,
+                                                   MetaSurfaceActorPrivate);
+
+  priv->texture = META_SHAPED_TEXTURE (meta_shaped_texture_new ());
+  clutter_actor_add_child (CLUTTER_ACTOR (self), CLUTTER_ACTOR (priv->texture));
+}
+
+cairo_surface_t *
+meta_surface_actor_get_image (MetaSurfaceActor      *self,
+                              cairo_rectangle_int_t *clip)
+{
+  return meta_shaped_texture_get_image (self->priv->texture, clip);
+}
+
+MetaShapedTexture *
+meta_surface_actor_get_texture (MetaSurfaceActor *self)
+{
+  return self->priv->texture;
+}
+
+void
+meta_surface_actor_update_area (MetaSurfaceActor *self,
+                                int x, int y, int width, int height)
+{
+  MetaSurfaceActorPrivate *priv = self->priv;
+
+  if (meta_shaped_texture_update_area (priv->texture, x, y, width, height))
+    g_signal_emit (self, signals[REPAINT_SCHEDULED], 0);
+}
+
+gboolean
+meta_surface_actor_is_obscured (MetaSurfaceActor *self)
+{
+  MetaSurfaceActorPrivate *priv = self->priv;
+  return meta_shaped_texture_is_obscured (priv->texture);
+}
+
+void
+meta_surface_actor_set_input_region (MetaSurfaceActor *self,
+                                     cairo_region_t   *region)
+{
+  MetaSurfaceActorPrivate *priv = self->priv;
+
+  if (priv->input_region)
+    cairo_region_destroy (priv->input_region);
+
+  if (region)
+    priv->input_region = cairo_region_reference (region);
+  else
+    priv->input_region = NULL;
+}
+
+void
+meta_surface_actor_set_opaque_region (MetaSurfaceActor *self,
+                                      cairo_region_t   *region)
+{
+  MetaSurfaceActorPrivate *priv = self->priv;
+  meta_shaped_texture_set_opaque_region (priv->texture, region);
+}
+
+static gboolean
+is_frozen (MetaSurfaceActor *self)
+{
+  MetaSurfaceActorPrivate *priv = self->priv;
+  return priv->frozen;
+}
+
+void
+meta_surface_actor_process_damage (MetaSurfaceActor *self,
+                                   int x, int y, int width, int height)
+{
+  MetaSurfaceActorPrivate *priv = self->priv;
+
+  if (is_frozen (self))
+    {
+      /* The window is frozen due to an effect in progress: we ignore damage
+       * here on the off chance that this will stop the corresponding
+       * texture_from_pixmap from being update.
+       *
+       * needs_damage_all tracks that some unknown damage happened while the
+       * window was frozen so that when the window becomes unfrozen we can
+       * issue a full window update to cover any lost damage.
+       *
+       * It should be noted that this is an unreliable mechanism since it's
+       * quite likely that drivers will aim to provide a zero-copy
+       * implementation of the texture_from_pixmap extension and in those cases
+       * any drawing done to the window is always immediately reflected in the
+       * texture regardless of damage event handling.
+       */
+      priv->needs_damage_all = TRUE;
+      return;
+    }
+
+  META_SURFACE_ACTOR_GET_CLASS (self)->process_damage (self, x, y, width, height);
+}
+
+void
+meta_surface_actor_pre_paint (MetaSurfaceActor *self)
+{
+  META_SURFACE_ACTOR_GET_CLASS (self)->pre_paint (self);
+}
+
+gboolean
+meta_surface_actor_is_argb32 (MetaSurfaceActor *self)
+{
+  return META_SURFACE_ACTOR_GET_CLASS (self)->is_argb32 (self);
+}
+
+gboolean
+meta_surface_actor_is_visible (MetaSurfaceActor *self)
+{
+  return META_SURFACE_ACTOR_GET_CLASS (self)->is_visible (self);
+}
+
+void
+meta_surface_actor_set_frozen (MetaSurfaceActor *self,
+                               gboolean          frozen)
+{
+  MetaSurfaceActorPrivate *priv = self->priv;
+
+  priv->frozen = frozen;
+
+  if (!frozen && priv->needs_damage_all)
+    {
+      /* Since we ignore damage events while a window is frozen for certain effects
+       * we may need to issue an update_area() covering the whole pixmap if we
+       * don't know what real damage has happened. */
+
+      meta_surface_actor_process_damage (self, 0, 0,
+                                         clutter_actor_get_width (CLUTTER_ACTOR (priv->texture)),
+                                         clutter_actor_get_height (CLUTTER_ACTOR (priv->texture)));
+      priv->needs_damage_all = FALSE;
+    }
+}
+
+gboolean
+meta_surface_actor_should_unredirect (MetaSurfaceActor *self)
+{
+  return META_SURFACE_ACTOR_GET_CLASS (self)->should_unredirect (self);
+}
+
+void
+meta_surface_actor_set_unredirected (MetaSurfaceActor *self,
+                                     gboolean          unredirected)
+{
+  META_SURFACE_ACTOR_GET_CLASS (self)->set_unredirected (self, unredirected);
+}
+
+gboolean
+meta_surface_actor_is_unredirected (MetaSurfaceActor *self)
+{
+  return META_SURFACE_ACTOR_GET_CLASS (self)->is_unredirected (self);
+}
+
+MetaWindow *
+meta_surface_actor_get_window (MetaSurfaceActor *self)
+{
+  return META_SURFACE_ACTOR_GET_CLASS (self)->get_window (self);
+}

src/compositor/meta-surface-actor.h

@@ -0,0 +1,86 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+#ifndef META_SURFACE_ACTOR_PRIVATE_H
+#define META_SURFACE_ACTOR_PRIVATE_H
+
+#include <config.h>
+
+#include <meta/meta-shaped-texture.h>
+#include <meta/window.h>
+
+G_BEGIN_DECLS
+
+#define META_TYPE_SURFACE_ACTOR            (meta_surface_actor_get_type())
+#define META_SURFACE_ACTOR(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_SURFACE_ACTOR, MetaSurfaceActor))
+#define META_SURFACE_ACTOR_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_SURFACE_ACTOR, MetaSurfaceActorClass))
+#define META_IS_SURFACE_ACTOR(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_SURFACE_ACTOR))
+#define META_IS_SURFACE_ACTOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_SURFACE_ACTOR))
+#define META_SURFACE_ACTOR_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_SURFACE_ACTOR, MetaSurfaceActorClass))
+
+typedef struct _MetaSurfaceActor        MetaSurfaceActor;
+typedef struct _MetaSurfaceActorClass   MetaSurfaceActorClass;
+typedef struct _MetaSurfaceActorPrivate MetaSurfaceActorPrivate;
+
+struct _MetaSurfaceActorClass
+{
+  /*< private >*/
+  ClutterActorClass parent_class;
+
+  void     (* process_damage)    (MetaSurfaceActor *actor,
+                                  int x, int y, int width, int height);
+  void     (* pre_paint)         (MetaSurfaceActor *actor);
+  gboolean (* is_argb32)         (MetaSurfaceActor *actor);
+  gboolean (* is_visible)        (MetaSurfaceActor *actor);
+
+  gboolean (* should_unredirect) (MetaSurfaceActor *actor);
+  void     (* set_unredirected)  (MetaSurfaceActor *actor,
+                                  gboolean          unredirected);
+  gboolean (* is_unredirected)   (MetaSurfaceActor *actor);
+
+  MetaWindow *(* get_window)      (MetaSurfaceActor *actor);
+};
+
+struct _MetaSurfaceActor
+{
+  ClutterActor            parent;
+
+  MetaSurfaceActorPrivate *priv;
+};
+
+GType meta_surface_actor_get_type (void);
+
+cairo_surface_t *meta_surface_actor_get_image (MetaSurfaceActor      *self,
+                                               cairo_rectangle_int_t *clip);
+
+MetaShapedTexture *meta_surface_actor_get_texture (MetaSurfaceActor *self);
+MetaWindow        *meta_surface_actor_get_window  (MetaSurfaceActor *self);
+
+gboolean meta_surface_actor_is_obscured (MetaSurfaceActor *self);
+gboolean meta_surface_actor_get_unobscured_bounds (MetaSurfaceActor      *self,
+                                                   cairo_rectangle_int_t *unobscured_bounds);
+
+void meta_surface_actor_set_input_region (MetaSurfaceActor *self,
+                                          cairo_region_t   *region);
+void meta_surface_actor_set_opaque_region (MetaSurfaceActor *self,
+                                           cairo_region_t   *region);
+
+void meta_surface_actor_update_area (MetaSurfaceActor *actor,
+                                     int x, int y, int width, int height);
+
+void meta_surface_actor_process_damage (MetaSurfaceActor *actor,
+                                        int x, int y, int width, int height);
+void meta_surface_actor_pre_paint (MetaSurfaceActor *actor);
+gboolean meta_surface_actor_is_argb32 (MetaSurfaceActor *actor);
+gboolean meta_surface_actor_is_visible (MetaSurfaceActor *actor);
+
+void meta_surface_actor_set_frozen (MetaSurfaceActor *actor,
+                                    gboolean          frozen);
+
+gboolean meta_surface_actor_should_unredirect (MetaSurfaceActor *actor);
+void meta_surface_actor_set_unredirected (MetaSurfaceActor *actor,
+                                          gboolean          unredirected);
+gboolean meta_surface_actor_is_unredirected (MetaSurfaceActor *actor);
+
+G_END_DECLS
+
+#endif /* META_SURFACE_ACTOR_PRIVATE_H */

src/compositor/meta-texture-tower.c

@@ -60,7 +60,6 @@ struct _MetaTextureTower
   CoglTexture *textures[MAX_TEXTURE_LEVELS];
   CoglOffscreen *fbos[MAX_TEXTURE_LEVELS];
   Box invalid[MAX_TEXTURE_LEVELS];
-  CoglPipeline *pipeline_template;
 };
 
 /**
@@ -92,9 +91,6 @@ meta_texture_tower_free (MetaTextureTower *tower)
 {
   g_return_if_fail (tower != NULL);
 
-  if (tower->pipeline_template != NULL)
-    cogl_object_unref (tower->pipeline_template);
-
   meta_texture_tower_set_base_texture (tower, NULL);
 
   g_slice_free (MetaTextureTower, tower);
@@ -377,7 +373,7 @@ texture_tower_create_texture (MetaTextureTower *tower,
   tower->invalid[level].y2 = height;
 }
 
-static void
+static gboolean
 texture_tower_revalidate_fbo (MetaTextureTower *tower,
                               int               level)
 {
@@ -388,50 +384,174 @@ texture_tower_revalidate_fbo (MetaTextureTower *tower,
   int dest_texture_width = cogl_texture_get_width (dest_texture);
   int dest_texture_height = cogl_texture_get_height (dest_texture);
   Box *invalid = &tower->invalid[level];
-  CoglFramebuffer *fb;
-  CoglError *catch_error = NULL;
-  CoglPipeline *pipeline;
+  CoglMatrix modelview;
 
   if (tower->fbos[level] == NULL)
-    tower->fbos[level] = cogl_offscreen_new_with_texture (dest_texture);
+    tower->fbos[level] = cogl_offscreen_new_to_texture (dest_texture);
 
-  fb = COGL_FRAMEBUFFER (tower->fbos[level]);
+  if (tower->fbos[level] == NULL)
+    return FALSE;
 
-  if (!cogl_framebuffer_allocate (fb, &catch_error))
+  cogl_push_framebuffer (COGL_FRAMEBUFFER (tower->fbos[level]));
+
+  cogl_ortho (0, dest_texture_width, dest_texture_height, 0, -1., 1.);
+
+  cogl_matrix_init_identity (&modelview);
+  cogl_set_modelview_matrix (&modelview);
+
+  cogl_set_source_texture (tower->textures[level - 1]);
+  cogl_rectangle_with_texture_coords (invalid->x1, invalid->y1,
+                                      invalid->x2, invalid->y2,
+                                      (2. * invalid->x1) / source_texture_width,
+                                      (2. * invalid->y1) / source_texture_height,
+                                      (2. * invalid->x2) / source_texture_width,
+                                      (2. * invalid->y2) / source_texture_height);
+
+  cogl_pop_framebuffer ();
+
+  return TRUE;
+}
+
+static void
+fill_copy (guchar       *buf,
+           const guchar *source,
+           int           width)
+{
+  memcpy (buf, source, width * 4);
+}
+
+static void
+fill_scale_down (guchar       *buf,
+                 const guchar *source,
+                 int           width)
+{
+  while (width > 1)
     {
-      cogl_error_free (catch_error);
-      return;
+      buf[0] = (source[0] + source[4]) / 2;
+      buf[1] = (source[1] + source[5]) / 2;
+      buf[2] = (source[2] + source[6]) / 2;
+      buf[3] = (source[3] + source[7]) / 2;
+
+      buf += 4;
+      source += 8;
+      width -= 2;
     }
 
-  cogl_framebuffer_orthographic (fb, 0, 0, dest_texture_width, dest_texture_height, -1., 1.);
-
-  if (!tower->pipeline_template)
+  if (width > 0)
     {
-      CoglContext *ctx =
-        clutter_backend_get_cogl_context (clutter_get_default_backend ());
-      tower->pipeline_template = cogl_pipeline_new (ctx);
-      cogl_pipeline_set_blend (tower->pipeline_template, "RGBA = ADD (SRC_COLOR, 0)", NULL);
+      buf[0] = source[0] / 2;
+      buf[1] = source[1] / 2;
+      buf[2] = source[2] / 2;
+      buf[3] = source[3] / 2;
+    }
+}
+
+static void
+texture_tower_revalidate_client (MetaTextureTower *tower,
+                                 int               level)
+{
+  CoglTexture *source_texture = tower->textures[level - 1];
+  int source_texture_width = cogl_texture_get_width (source_texture);
+  int source_texture_height = cogl_texture_get_height (source_texture);
+  guint source_rowstride;
+  guchar *source_data;
+  CoglTexture *dest_texture = tower->textures[level];
+  int dest_texture_width = cogl_texture_get_width (dest_texture);
+  int dest_texture_height = cogl_texture_get_height (dest_texture);
+  int dest_x = tower->invalid[level].x1;
+  int dest_y = tower->invalid[level].y1;
+  int dest_width = tower->invalid[level].x2 - tower->invalid[level].x1;
+  int dest_height = tower->invalid[level].y2 - tower->invalid[level].y1;
+  guchar *dest_data;
+  guchar *source_tmp1 = NULL, *source_tmp2 = NULL;
+  int i, j;
+
+  source_rowstride = source_texture_width * 4;
+
+  source_data = g_malloc (source_texture_height * source_rowstride);
+  cogl_texture_get_data (source_texture, TEXTURE_FORMAT, source_rowstride,
+                         source_data);
+
+  dest_data = g_malloc (dest_height * dest_width * 4);
+
+  if (dest_texture_height < source_texture_height)
+    {
+      source_tmp1 = g_malloc (dest_width * 4);
+      source_tmp2 = g_malloc (dest_width * 4);
     }
 
-  pipeline = cogl_pipeline_copy (tower->pipeline_template);
-  cogl_pipeline_set_layer_texture (pipeline, 0, tower->textures[level - 1]);
+  for (i = 0; i < dest_height; i++)
+    {
+      guchar *dest_row = dest_data + i * dest_width * 4;
+      if (dest_texture_height < source_texture_height)
+        {
+          guchar *source1, *source2;
+          guchar *dest;
 
-  cogl_framebuffer_draw_textured_rectangle (fb, pipeline,
-                                            invalid->x1, invalid->y1,
-                                            invalid->x2, invalid->y2,
-                                            (2. * invalid->x1) / source_texture_width,
-                                            (2. * invalid->y1) / source_texture_height,
-                                            (2. * invalid->x2) / source_texture_width,
-                                            (2. * invalid->y2) / source_texture_height);
+          if (dest_texture_width < source_texture_width)
+            {
+              fill_scale_down (source_tmp1,
+                               source_data + ((i + dest_y) * 2) * source_rowstride + dest_x * 2 * 4,
+                               dest_width * 2);
+              fill_scale_down (source_tmp2,
+                               source_data + ((i + dest_y) * 2 + 1) * source_rowstride + dest_x * 2 * 4,
+                               dest_width * 2);
+            }
+          else
+            {
+              fill_copy (source_tmp1,
+                         source_data + ((i + dest_y) * 2) * source_rowstride + dest_x * 4,
+                         dest_width);
+              fill_copy (source_tmp2,
+                         source_data + ((i + dest_y) * 2 + 1) * source_rowstride + dest_x * 4,
+                         dest_width);
+            }
 
-  cogl_object_unref (pipeline);
+          source1 = source_tmp1;
+          source2 = source_tmp2;
+
+          dest = dest_row;
+          for (j = 0; j < dest_width * 4; j++)
+            *(dest++) = (*(source1++) + *(source2++)) / 2;
+        }
+      else
+        {
+          if (dest_texture_width < source_texture_width)
+            fill_scale_down (dest_row,
+                             source_data + (i + dest_y) * source_rowstride + dest_x * 2 * 4,
+                             dest_width * 2);
+          else
+            fill_copy (dest_row,
+                       source_data + (i + dest_y) * source_rowstride,
+                       dest_width);
+        }
+    }
+
+  cogl_texture_set_region (dest_texture,
+                           0, 0,
+                           dest_x, dest_y,
+                           dest_width, dest_height,
+                           dest_width, dest_height,
+                           TEXTURE_FORMAT,
+                           4 * dest_width,
+                           dest_data);
+
+  if (dest_texture_height < source_texture_height)
+    {
+      g_free (source_tmp1);
+      g_free (source_tmp2);
+    }
+
+  g_free (source_data);
+  g_free (dest_data);
 }
 
 static void
 texture_tower_revalidate (MetaTextureTower *tower,
                           int               level)
 {
-  texture_tower_revalidate_fbo (tower, level);
+  if (!texture_tower_revalidate_fbo (tower, level))
+    texture_tower_revalidate_client (tower, level);
 }
 
 /**

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

@@ -7,6 +7,7 @@
 
 #include <X11/extensions/Xdamage.h>
 #include <meta/compositor-mutter.h>
+#include "meta-surface-actor.h"
 
 MetaWindowActor *meta_window_actor_new (MetaWindow *window);
 
@@ -24,8 +25,8 @@ void meta_window_actor_unmaximize (MetaWindowActor *self,
                                    MetaRectangle   *old_rect,
                                    MetaRectangle   *new_rect);
 
-void meta_window_actor_process_damage (MetaWindowActor    *self,
-                                       XDamageNotifyEvent *event);
+void meta_window_actor_process_x11_damage (MetaWindowActor    *self,
+                                           XDamageNotifyEvent *event);
 
 void meta_window_actor_pre_paint      (MetaWindowActor    *self);
 void meta_window_actor_post_paint     (MetaWindowActor    *self);
@@ -58,4 +59,7 @@ void     meta_window_actor_queue_frame_drawn   (MetaWindowActor *self,
 void meta_window_actor_effect_completed (MetaWindowActor *actor,
                                          gulong           event);
 
+MetaSurfaceActor *meta_window_actor_get_surface (MetaWindowActor *self);
+void meta_window_actor_update_surface (MetaWindowActor *self);
+
 #endif /* META_WINDOW_ACTOR_PRIVATE_H */

src/compositor/meta-window-group.c

@@ -122,7 +122,6 @@ meta_window_group_paint (ClutterActor *actor)
 
   MetaWindowGroup *window_group = META_WINDOW_GROUP (actor);
   ClutterActor *stage = clutter_actor_get_stage (actor);
-  MetaCompScreen *info = meta_screen_get_compositor_data (window_group->screen);
 
   /* Normally we expect an actor to be drawn at it's position on the screen.
    * However, if we're inside the paint of a ClutterClone, that won't be the
@@ -165,15 +164,6 @@ meta_window_group_paint (ClutterActor *actor)
   paint_y_offset = paint_y_origin - actor_y_origin;
   cairo_region_translate (clip_region, -paint_x_offset, -paint_y_offset);
 
-  if (info->unredirected_window != NULL)
-    {
-      cairo_rectangle_int_t unredirected_rect;
-
-      meta_window_get_frame_rect (info->unredirected_window, (MetaRectangle *)&unredirected_rect);
-      cairo_region_subtract_rectangle (unobscured_region, &unredirected_rect);
-      cairo_region_subtract_rectangle (clip_region, &unredirected_rect);
-    }
-
   meta_cullable_cull_out (META_CULLABLE (window_group), unobscured_region, clip_region);
 
   cairo_region_destroy (unobscured_region);

src/compositor/plugins/default.c

@@ -32,7 +32,7 @@
 #include <gmodule.h>
 #include <string.h>
 
-#define DESTROY_TIMEOUT   250
+#define DESTROY_TIMEOUT   100
 #define MINIMIZE_TIMEOUT  250
 #define MAXIMIZE_TIMEOUT  250
 #define MAP_TIMEOUT       250
@@ -488,8 +488,6 @@ on_minimize_effect_complete (ClutterTimeline *timeline, EffectCompleteData *data
   /* FIXME - we shouldn't assume the original scale, it should be saved
    * at the start of the effect */
   clutter_actor_set_scale (data->actor, 1.0, 1.0);
-  clutter_actor_move_anchor_point_from_gravity (data->actor,
-                                                CLUTTER_GRAVITY_NORTH_WEST);
 
   /* Now notify the manager that we are done with this effect */
   meta_plugin_minimize_completed (plugin, window_actor);
@@ -526,9 +524,6 @@ minimize (MetaPlugin *plugin, MetaWindowActor *window_actor)
 
       apriv->is_minimized = TRUE;
 
-      clutter_actor_move_anchor_point_from_gravity (actor,
-                                                    CLUTTER_GRAVITY_CENTER);
-
       animation = clutter_actor_animate (actor,
                                          CLUTTER_EASE_IN_SINE,
                                          MINIMIZE_TIMEOUT,
@@ -567,8 +562,6 @@ on_maximize_effect_complete (ClutterTimeline *timeline, EffectCompleteData *data
 
   /* FIXME - don't assume the original scale was 1.0 */
   clutter_actor_set_scale (data->actor, 1.0, 1.0);
-  clutter_actor_move_anchor_point_from_gravity (data->actor,
-                                                CLUTTER_GRAVITY_NORTH_WEST);
 
   /* Now notify the manager that we are done with this effect */
   meta_plugin_maximize_completed (plugin, window_actor);
@@ -593,10 +586,8 @@ maximize (MetaPlugin *plugin,
   ClutterActor *actor = CLUTTER_ACTOR (window_actor);
   MetaWindow *meta_window = meta_window_actor_get_meta_window (window_actor);
 
-  gdouble  scale_x    = 1.0;
-  gdouble  scale_y    = 1.0;
-  gfloat   anchor_x   = 0;
-  gfloat   anchor_y   = 0;
+  gdouble  scale_x = 1.0;
+  gdouble  scale_y = 1.0;
 
   type = meta_window_get_window_type (meta_window);
 
@@ -620,13 +611,6 @@ maximize (MetaPlugin *plugin,
       scale_x = (gdouble)end_width / (gdouble) width;
       scale_y = (gdouble)end_height / (gdouble) height;
 
-      anchor_x = (gdouble)(x - end_x)*(gdouble)width /
-        ((gdouble)(end_width - width));
-      anchor_y = (gdouble)(y - end_y)*(gdouble)height /
-        ((gdouble)(end_height - height));
-
-      clutter_actor_move_anchor_point (actor, anchor_x, anchor_y);
-
       animation = clutter_actor_animate (actor,
                                          CLUTTER_EASE_IN_SINE,
                                          MAXIMIZE_TIMEOUT,
@@ -681,9 +665,6 @@ on_map_effect_complete (ClutterTimeline *timeline, EffectCompleteData *data)
 
   apriv->tml_map = NULL;
 
-  clutter_actor_move_anchor_point_from_gravity (data->actor,
-                                                CLUTTER_GRAVITY_NORTH_WEST);
-
   /* Now notify the manager that we are done with this effect */
   meta_plugin_map_completed (plugin, window_actor);
 
@@ -769,14 +750,12 @@ destroy (MetaPlugin *plugin, MetaWindowActor *window_actor)
       EffectCompleteData *data = g_new0 (EffectCompleteData, 1);
       ActorPrivate *apriv = get_actor_private (window_actor);
 
-      clutter_actor_move_anchor_point_from_gravity (actor,
-                                                    CLUTTER_GRAVITY_CENTER);
-
       animation = clutter_actor_animate (actor,
-                                         CLUTTER_EASE_IN_SINE,
+                                         CLUTTER_EASE_OUT_QUAD,
                                          DESTROY_TIMEOUT,
-                                         "scale-x", 0.0,
-                                         "scale-y", 1.0,
+                                         "opacity", 0,
+                                         "scale-x", 0.8,
+                                         "scale-y", 0.8,
                                          NULL);
       apriv->tml_destroy = clutter_animation_get_timeline (animation);
       data->plugin = plugin;

src/core/barrier.c

@@ -366,11 +366,25 @@ meta_barrier_fire_event (MetaBarrier    *barrier,
 }
 
 gboolean
-meta_display_process_barrier_event (MetaDisplay    *display,
-                                    XIBarrierEvent *xev)
+meta_display_process_barrier_event (MetaDisplay *display,
+                                    XIEvent     *event)
 {
   MetaBarrier *barrier;
+  XIBarrierEvent *xev;
 
+  if (event == NULL)
+    return FALSE;
+
+  switch (event->evtype)
+    {
+    case XI_BarrierHit:
+    case XI_BarrierLeave:
+      break;
+    default:
+      return FALSE;
+    }
+
+  xev = (XIBarrierEvent *) event;
   barrier = g_hash_table_lookup (display->xids, &xev->barrier);
   if (barrier != NULL)
     {

src/core/bell.c

@@ -58,88 +58,6 @@
 #include <canberra-gtk.h>
 #endif
 
-/**
- * bell_flash_screen:
- * @display:  The display which owns the screen (rather redundant)
- * @screen:   The screen to flash
- *
- * Flashes one entire screen.  This is done by making a window the size of the
- * whole screen (or reusing the old one, if it's still around), mapping it,
- * painting it white and then black, and then unmapping it. We set saveunder so
- * that all the windows behind it come back immediately.
- *
- * Unlike frame flashes, we don't do fullscreen flashes with a timeout; rather,
- * we do them in one go, because we don't have to rely on the theme code
- * redrawing the frame for us in order to do the flash.
- */
-/*
- * Bug: The way I read it, this appears not to do the flash
- * the first time we flash a particular display. Am I wrong?
- *
- * Bug: This appears to destroy our current XSync status.
- */
-static void
-bell_flash_screen (MetaDisplay *display, 
-			MetaScreen  *screen)
-{
-  Window root = screen->xroot;
-  int width = screen->rect.width;
-  int height = screen->rect.height;
-  
-  if (screen->flash_window == None)
-    {
-      Visual *visual = (Visual *)CopyFromParent;
-      XSetWindowAttributes xswa;
-      int depth = CopyFromParent;
-      xswa.save_under = True;
-      xswa.override_redirect = True;
-      /* 
-       * TODO: use XGetVisualInfo and determine which is an
-       * overlay, if one is present, and use the Overlay visual
-       * for this window (for performance reasons).  
-       * Not sure how to tell this yet... 
-       */
-      screen->flash_window = XCreateWindow (display->xdisplay, root,
-					    0, 0, width, height,
-					    0, depth,
-					    InputOutput,
-					    visual,
-				    /* note: XSun doesn't like SaveUnder here */
-					    CWSaveUnder | CWOverrideRedirect,
-					    &xswa);
-      XSelectInput (display->xdisplay, screen->flash_window, ExposureMask);
-      XMapWindow (display->xdisplay, screen->flash_window);
-      XSync (display->xdisplay, False);
-      XFlush (display->xdisplay);
-      XUnmapWindow (display->xdisplay, screen->flash_window);
-    }
-  else
-    {
-      /* just draw something in the window */
-      GC gc = XCreateGC (display->xdisplay, screen->flash_window, 0, NULL);
-      XMapWindow (display->xdisplay, screen->flash_window);
-      XSetForeground (display->xdisplay, gc,
-		      WhitePixel (display->xdisplay, 
-				  XScreenNumberOfScreen (screen->xscreen)));
-      XFillRectangle (display->xdisplay, screen->flash_window, gc,
-		      0, 0, width, height);
-      XSetForeground (display->xdisplay, gc,
-		      BlackPixel (display->xdisplay, 
-				  XScreenNumberOfScreen (screen->xscreen)));
-      XFillRectangle (display->xdisplay, screen->flash_window, gc,
-		      0, 0, width, height);
-      XFlush (display->xdisplay);
-      XSync (display->xdisplay, False);
-      XUnmapWindow (display->xdisplay, screen->flash_window);
-      XFreeGC (display->xdisplay, gc);
-    }
-
-  if (meta_prefs_get_focus_mode () != G_DESKTOP_FOCUS_MODE_CLICK &&
-      !display->mouse_mode)
-    meta_display_increment_focus_sentinel (display);
-  XFlush (display->xdisplay);
-}
-
 /**
  * bell_flash_fullscreen:
  * @display: The display the event came in on
@@ -164,12 +82,7 @@ bell_flash_fullscreen (MetaDisplay *display,
     {
       screen = meta_display_screen_for_xwindow (display, xkb_bell_ev->window);
       if (screen)
-        {
-          if (display->compositor)
-            meta_compositor_flash_screen (display->compositor, screen);
-          else
-            bell_flash_screen (display, screen);
-        }
+        meta_compositor_flash_screen (display->compositor, screen);
     }
   else 
     {
@@ -177,10 +90,7 @@ bell_flash_fullscreen (MetaDisplay *display,
       while (screen_list) 
 	{
 	  screen = (MetaScreen *) screen_list->data;
-          if (display->compositor)
-            meta_compositor_flash_screen (display->compositor, screen);
-          else
-            bell_flash_screen (display, screen);
+          meta_compositor_flash_screen (display->compositor, screen);
 	  screen_list = screen_list->next;
 	}
     }

src/core/constraints.c

@@ -425,6 +425,7 @@ setup_constraint_info (ConstraintInfo      *info,
    * the monitor.
    */
   if (meta_prefs_get_force_fullscreen() &&
+      window->client_type != META_WINDOW_CLIENT_TYPE_WAYLAND &&
       !window->hide_titlebar_when_maximized &&
       (window->decorated || !meta_window_is_client_decorated (window)) &&
       meta_rectangle_equal (new, &monitor_info->rect) &&

src/core/constraints.h

@@ -33,7 +33,8 @@ typedef enum
   META_DO_GRAVITY_ADJUST    = 1 << 1,
   META_IS_USER_ACTION       = 1 << 2,
   META_IS_MOVE_ACTION       = 1 << 3,
-  META_IS_RESIZE_ACTION     = 1 << 4
+  META_IS_RESIZE_ACTION     = 1 << 4,
+  META_IS_WAYLAND_RESIZE    = 1 << 5
 } MetaMoveResizeFlags;
 
 void meta_window_constrain (MetaWindow          *window,

src/core/core.c

@@ -153,7 +153,7 @@ meta_core_get (Display *xdisplay,
         break;
 
       default:
-        meta_warning(_("Unknown window information request: %d"), request);
+        meta_warning("Unknown window information request: %d\n", request);
     }
 
     request = va_arg (args, MetaCoreGetType);
@@ -270,6 +270,8 @@ meta_core_lower_beneath_grab_window (Display *xdisplay,
   MetaDisplay *display;
   MetaScreen *screen;
   MetaWindow *grab_window;
+  MetaStackWindow stack_window;
+  MetaStackWindow stack_sibling;
 
   display = meta_display_for_x_display (xdisplay);
   screen = meta_display_screen_for_xwindow (display, xwindow);
@@ -281,9 +283,13 @@ meta_core_lower_beneath_grab_window (Display *xdisplay,
   changes.stack_mode = Below;
   changes.sibling = meta_window_get_toplevel_xwindow (grab_window);
 
+  stack_window.any.type = META_WINDOW_CLIENT_TYPE_X11;
+  stack_window.x11.xwindow = xwindow;
+  stack_sibling.any.type = META_WINDOW_CLIENT_TYPE_X11;
+  stack_sibling.x11.xwindow = changes.sibling;
   meta_stack_tracker_record_lower_below (screen->stack_tracker,
-                                         xwindow,
-                                         changes.sibling,
+                                         &stack_window,
+                                         &stack_sibling,
                                          XNextRequest (screen->display->xdisplay));
 
   meta_error_trap_push (display);
@@ -712,16 +718,6 @@ meta_core_set_screen_cursor (Display *xdisplay,
   meta_frame_set_screen_cursor (window->frame, cursor);
 }
 
-void
-meta_core_increment_event_serial (Display *xdisplay)
-{
-  MetaDisplay *display;
-  
-  display = meta_display_for_x_display (xdisplay);
-
-  meta_display_increment_event_serial (display);
-}
-
 void
 meta_invalidate_default_icons (void)
 {

src/core/core.h

@@ -193,12 +193,6 @@ void       meta_core_set_screen_cursor (Display *xdisplay,
                                         Window   frame_on_screen,
                                         MetaCursor cursor);
 
-/* Used because we ignore EnterNotify when a window is unmapped that
- * really shouldn't cause focus changes, by comparing the event serial
- * of the EnterNotify and the UnmapNotify.
- */
-void meta_core_increment_event_serial (Display *display);
-
 void meta_invalidate_default_icons (void);
 
 void meta_core_add_old_event_mask (Display     *xdisplay,

src/core/delete.c

@@ -37,18 +37,17 @@
 #include <stdlib.h>
 #include <stdio.h>
 
+#include "wayland/meta-wayland-surface.h"
+
 static void meta_window_present_delete_dialog (MetaWindow *window,
                                                guint32     timestamp);
 
 static void
-delete_ping_reply_func (MetaDisplay *display,
-                        Window       xwindow,
+delete_ping_reply_func (MetaWindow  *window,
                         guint32      timestamp,
                         void        *user_data)
 {
-  meta_topic (META_DEBUG_PING,
-              "Got reply to delete ping for %s\n",
-              ((MetaWindow*)user_data)->desc);
+  meta_topic (META_DEBUG_PING, "Got reply to delete ping for %s\n", window->desc);
 
   /* we do nothing */
 }
@@ -66,12 +65,10 @@ dialog_exited (GPid pid, int status, gpointer user_data)
 }
 
 static void
-delete_ping_timeout_func (MetaDisplay *display,
-                          Window       xwindow,
+delete_ping_timeout_func (MetaWindow  *window,
                           guint32      timestamp,
                           void        *user_data)
 {
-  MetaWindow *window = user_data;
   char *window_title;
   gchar *window_content, *tmp;
   GPid dialog_pid;
@@ -135,36 +132,42 @@ void
 meta_window_check_alive (MetaWindow *window,
                          guint32     timestamp)
 {
-  meta_display_ping_window (window->display,
-                            window,
+  meta_display_ping_window (window,
                             timestamp,
                             delete_ping_reply_func,
                             delete_ping_timeout_func,
-                            window);
+                            NULL);
 }
 
 void
 meta_window_delete (MetaWindow  *window,
                     guint32      timestamp)
 {
-  meta_error_trap_push (window->display);
-  if (window->delete_window)
+  if (window->client_type == META_WINDOW_CLIENT_TYPE_X11)
     {
-      meta_topic (META_DEBUG_WINDOW_OPS,
-                  "Deleting %s with delete_window request\n",
-                  window->desc);
-      meta_window_send_icccm_message (window,
-                                      window->display->atom_WM_DELETE_WINDOW,
-                                      timestamp);
+      meta_error_trap_push (window->display);
+      if (window->delete_window)
+        {
+          meta_topic (META_DEBUG_WINDOW_OPS,
+                      "Deleting %s with delete_window request\n",
+                      window->desc);
+          meta_window_send_icccm_message (window,
+                                          window->display->atom_WM_DELETE_WINDOW,
+                                          timestamp);
+        }
+      else
+        {
+          meta_topic (META_DEBUG_WINDOW_OPS,
+                      "Deleting %s with explicit kill\n",
+                      window->desc);
+          XKillClient (window->display->xdisplay, window->xwindow);
+        }
+      meta_error_trap_pop (window->display);
     }
   else
     {
-      meta_topic (META_DEBUG_WINDOW_OPS,
-                  "Deleting %s with explicit kill\n",
-                  window->desc);
-      XKillClient (window->display->xdisplay, window->xwindow);
+      meta_wayland_surface_delete (window->surface);
     }
-  meta_error_trap_pop (window->display);
 
   meta_window_check_alive (window, timestamp);
 
@@ -258,8 +261,7 @@ meta_window_present_delete_dialog (MetaWindow *window, guint32 timestamp)
         {
           MetaWindow *w = tmp->data;
 
-          if (w->xtransient_for == window->xwindow &&
-              w->res_class &&
+          if (w->transient_for == window && w->res_class &&
               g_ascii_strcasecmp (w->res_class, "mutter-dialog") == 0)
             {
               meta_window_activate (w, timestamp);

src/core/display-private.h

@@ -37,6 +37,7 @@
 #include "keybindings-private.h"
 #include <meta/prefs.h>
 #include <meta/barrier.h>
+#include <clutter/clutter.h>
 
 #ifdef HAVE_STARTUP_NOTIFICATION
 #include <libsn/sn.h>
@@ -54,10 +55,9 @@ typedef struct _MetaWindowPropHooks MetaWindowPropHooks;
 
 typedef struct MetaEdgeResistanceData MetaEdgeResistanceData;
 
-typedef void (* MetaWindowPingFunc) (MetaDisplay *display,
-				     Window       xwindow,
-				     guint32      timestamp,
-				     gpointer     user_data);
+typedef void (* MetaWindowPingFunc) (MetaWindow  *window,
+                                     guint32      timestamp,
+                                     gpointer     user_data);
 
 typedef enum {
   META_LIST_DEFAULT                   = 0,      /* normal windows */
@@ -91,6 +91,8 @@ struct _MetaDisplay
   char *name;
   Display *xdisplay;
 
+  int clutter_event_filter;
+
   Window leader_window;
   Window timestamp_pinging_window;
 
@@ -151,6 +153,7 @@ struct _MetaDisplay
   GSList *screens;
   MetaScreen *active_screen;
   GHashTable *xids;
+  GHashTable *wayland_windows;
   int error_traps;
   int (* error_trap_handler) (Display     *display,
                               XErrorEvent *error);  
@@ -185,7 +188,7 @@ struct _MetaDisplay
   MetaWindow* autoraise_window;
 
   /* Alt+click button grabs */
-  unsigned int window_grab_modifiers;
+  ClutterModifierType window_grab_modifiers;
   
   /* current window operation */
   MetaGrabOp  grab_op;
@@ -212,7 +215,6 @@ struct _MetaDisplay
   gboolean    grab_threshold_movement_reached; /* raise_on_click == FALSE.    */
   MetaResizePopup *grab_resize_popup;
   GTimeVal    grab_last_moveresize_time;
-  guint32     grab_motion_notify_time;
   GList*      grab_old_window_stacking;
   MetaEdgeResistanceData *grab_edge_resistance_data;
   unsigned int grab_last_user_action_was_snap;
@@ -377,6 +379,11 @@ void        meta_display_register_x_window   (MetaDisplay *display,
 void        meta_display_unregister_x_window (MetaDisplay *display,
                                               Window       xwindow);
 
+void        meta_display_register_wayland_window   (MetaDisplay *display,
+                                                    MetaWindow  *window);
+void        meta_display_unregister_wayland_window (MetaDisplay *display,
+                                                    MetaWindow  *window);
+
 #ifdef HAVE_XSYNC
 MetaWindow* meta_display_lookup_sync_alarm     (MetaDisplay *display,
                                                 XSyncAlarm   alarm);
@@ -436,14 +443,13 @@ void meta_display_retheme_all (void);
 void meta_display_set_cursor_theme (const char *theme, 
 				    int         size);
 
-void meta_display_ping_window      (MetaDisplay        *display,
-                                    MetaWindow         *window,
+void meta_display_ping_window      (MetaWindow         *window,
                                     guint32             timestamp,
                                     MetaWindowPingFunc  ping_reply_func,
                                     MetaWindowPingFunc  ping_timeout_func,
                                     void               *user_data);
-gboolean meta_display_window_has_pending_pings (MetaDisplay        *display,
-						MetaWindow         *window);
+void meta_display_pong_for_serial  (MetaDisplay        *display,
+                                    guint32             serial);
 
 int meta_resize_gravity_from_grab_op (MetaGrabOp op);
 
@@ -464,18 +470,17 @@ void meta_display_queue_autoraise_callback  (MetaDisplay *display,
 void meta_display_remove_autoraise_callback (MetaDisplay *display);
 
 void meta_display_overlay_key_activate (MetaDisplay *display);
-void meta_display_accelerator_activate (MetaDisplay *display,
-                                        guint        action,
-                                        guint        deviceid,
-                                        guint        timestamp);
+void meta_display_accelerator_activate (MetaDisplay     *display,
+                                        guint            action,
+                                        ClutterKeyEvent *event);
 gboolean meta_display_modifiers_accelerator_activate (MetaDisplay *display);
 
 /* In above-tab-keycode.c */
 guint meta_display_get_above_tab_keycode (MetaDisplay *display);
 
 #ifdef HAVE_XI23
-gboolean meta_display_process_barrier_event (MetaDisplay    *display,
-                                             XIBarrierEvent *event);
+gboolean meta_display_process_barrier_event (MetaDisplay *display,
+                                             XIEvent     *event);
 #endif /* HAVE_XI23 */
 
 void meta_display_set_input_focus_xwindow (MetaDisplay *display,

src/core/frame.c

@@ -45,6 +45,7 @@ meta_window_ensure_frame (MetaWindow *window)
   XSetWindowAttributes attrs;
   Visual *visual;
   gulong create_serial;
+  MetaStackWindow stack_window;
   
   if (window->frame)
     return;
@@ -100,8 +101,10 @@ meta_window_ensure_frame (MetaWindow *window)
 						frame->rect.height,
 						frame->window->screen->number,
                                                 &create_serial);
+  stack_window.any.type = META_WINDOW_CLIENT_TYPE_X11;
+  stack_window.x11.xwindow = frame->xwindow;
   meta_stack_tracker_record_add (window->screen->stack_tracker,
-                                 frame->xwindow,
+                                 &stack_window,
                                  create_serial);
 
   meta_verbose ("Frame for %s is 0x%lx\n", frame->window->desc, frame->xwindow);
@@ -125,8 +128,9 @@ meta_window_ensure_frame (MetaWindow *window)
   window->rect.x = 0;
   window->rect.y = 0;
 
+  stack_window.x11.xwindow = window->xwindow;
   meta_stack_tracker_record_remove (window->screen->stack_tracker,
-                                    window->xwindow,
+                                    &stack_window,
                                     XNextRequest (window->display->xdisplay));
   XReparentWindow (window->display->xdisplay,
                    window->xwindow,
@@ -161,6 +165,7 @@ meta_window_destroy_frame (MetaWindow *window)
 {
   MetaFrame *frame;
   MetaFrameBorders borders;
+  MetaStackWindow stack_window;
   
   if (window->frame == NULL)
     return;
@@ -187,8 +192,10 @@ meta_window_destroy_frame (MetaWindow *window)
                   "Incrementing unmaps_pending on %s for reparent back to root\n", window->desc);
       window->unmaps_pending += 1;
     }
+  stack_window.any.type = META_WINDOW_CLIENT_TYPE_X11;
+  stack_window.x11.xwindow = window->xwindow;
   meta_stack_tracker_record_add (window->screen->stack_tracker,
-                                 window->xwindow,
+                                 &stack_window,
                                  XNextRequest (window->display->xdisplay));
   XReparentWindow (window->display->xdisplay,
                    window->xwindow,

src/core/keybindings-private.h

@@ -104,9 +104,9 @@ gboolean meta_window_grab_all_keys          (MetaWindow  *window,
                                              guint32      timestamp);
 void     meta_window_ungrab_all_keys        (MetaWindow  *window,
                                              guint32      timestamp);
-gboolean meta_display_process_key_event     (MetaDisplay   *display,
-                                             MetaWindow    *window,
-                                             XIDeviceEvent *event);
+gboolean meta_display_process_key_event     (MetaDisplay     *display,
+                                             MetaWindow      *window,
+                                             ClutterKeyEvent *event);
 void     meta_display_process_mapping_event (MetaDisplay *display,
                                              XEvent      *event);
 
@@ -122,7 +122,3 @@ void meta_prefs_get_overlay_binding (MetaKeyCombo *combo);
 const char *meta_prefs_get_iso_next_group_option (void);
 
 #endif
-
-
-
-

src/core/main.c

@@ -50,11 +50,11 @@
 #include "display-private.h"
 #include <meta/errors.h>
 #include "ui.h"
-#include "session.h"
 #include <meta/prefs.h>
 #include <meta/compositor.h>
 
 #include <glib-object.h>
+#include <glib-unix.h>
 #include <gdk/gdkx.h>
 
 #include <stdlib.h>
@@ -77,6 +77,10 @@
 #include <girepository.h>
 #endif
 
+#include "x11/session.h"
+
+#include "wayland/meta-wayland.h"
+
 /*
  * The exit code we'll return to our parent process when we eventually die.
  */
@@ -187,6 +191,8 @@ static gchar    *opt_client_id;
 static gboolean  opt_replace_wm;
 static gboolean  opt_disable_sm;
 static gboolean  opt_sync;
+static gboolean  opt_wayland;
+static gboolean  opt_display_server;
 
 static GOptionEntry meta_options[] = {
   {
@@ -224,6 +230,17 @@ static GOptionEntry meta_options[] = {
     N_("Make X calls synchronous"),
     NULL
   },
+  {
+    "wayland", 0, 0, G_OPTION_ARG_NONE,
+    &opt_wayland,
+    N_("Run as a wayland compositor"),
+    NULL
+  },
+  {
+    "display-server", 0, 0, G_OPTION_ARG_NONE,
+    &opt_display_server,
+    N_("Run as a full display server, rather than nested")
+  },
   {NULL}
 };
 
@@ -247,9 +264,6 @@ meta_get_option_context (void)
 
   ctx = g_option_context_new (NULL);
   g_option_context_add_main_entries (ctx, meta_options, GETTEXT_PACKAGE);
-  g_option_context_add_group (ctx, clutter_get_option_group_without_init ());
-  g_option_context_add_group (ctx, cogl_get_option_group ());
-
   return ctx;
 }
 
@@ -328,16 +342,17 @@ meta_clutter_init (void)
  * also is %NULL, use the default - :0.0
  */
 static void
-meta_select_display (gchar *display_name)
+meta_select_display (char *display_arg)
 {
-  gchar *envVar = "";
+  const char *display_name;
+
+  if (display_arg)
+    display_name = (const char *) display_arg;
+  else
+    display_name = g_getenv ("MUTTER_DISPLAY");
+
   if (display_name)
-    envVar = g_strconcat ("DISPLAY=", display_name, NULL);
-  else if (g_getenv ("MUTTER_DISPLAY"))
-    envVar = g_strconcat ("DISPLAY=",
-      g_getenv ("MUTTER_DISPLAY"), NULL);
-  /* DO NOT FREE envVar, putenv() sucks */
-  putenv (envVar);
+    g_setenv ("DISPLAY", display_name, TRUE);
 }
 
 static void
@@ -348,28 +363,17 @@ meta_finalize (void)
   if (display)
     meta_display_close (display,
                         CurrentTime); /* I doubt correct timestamps matter here */
-}
 
-static int sigterm_pipe_fds[2] = { -1, -1 };
-
-static void
-sigterm_handler (int signum)
-{
-  if (sigterm_pipe_fds[1] >= 0)
-    {
-      int G_GNUC_UNUSED dummy;
-
-      dummy = write (sigterm_pipe_fds[1], "", 1);
-      close (sigterm_pipe_fds[1]);
-      sigterm_pipe_fds[1] = -1;
-    }
+  if (meta_is_wayland_compositor ())
+    meta_wayland_finalize ();
 }
 
 static gboolean
-on_sigterm (void)
+on_sigterm (gpointer user_data)
 {
-  meta_quit (META_EXIT_SUCCESS);
-  return FALSE;
+  meta_quit (EXIT_SUCCESS);
+
+  return G_SOURCE_REMOVE;
 }
 
 /**
@@ -383,9 +387,8 @@ meta_init (void)
 {
   struct sigaction act;
   sigset_t empty_mask;
-  GIOChannel *channel;
   ClutterSettings *clutter_settings;
-  
+
   sigemptyset (&empty_mask);
   act.sa_handler = SIG_IGN;
   act.sa_mask    = empty_mask;
@@ -399,26 +402,18 @@ meta_init (void)
                 g_strerror (errno));
 #endif
 
-  if (pipe (sigterm_pipe_fds) != 0)
-    g_printerr ("Failed to create SIGTERM pipe: %s\n",
-                g_strerror (errno));
-
-  channel = g_io_channel_unix_new (sigterm_pipe_fds[0]);
-  g_io_channel_set_flags (channel, G_IO_FLAG_NONBLOCK, NULL);
-  g_io_add_watch (channel, G_IO_IN, (GIOFunc) on_sigterm, NULL);
-  g_io_channel_set_close_on_unref (channel, TRUE);
-  g_io_channel_unref (channel);
-
-  act.sa_handler = &sigterm_handler;
-  if (sigaction (SIGTERM, &act, NULL) < 0)
-    g_printerr ("Failed to register SIGTERM handler: %s\n",
-		g_strerror (errno));
+  g_unix_signal_add (SIGTERM, on_sigterm, NULL);
 
   if (g_getenv ("MUTTER_VERBOSE"))
     meta_set_verbose (TRUE);
   if (g_getenv ("MUTTER_DEBUG"))
     meta_set_debugging (TRUE);
 
+  if (opt_display_server)
+    clutter_set_windowing_backend (CLUTTER_WINDOWING_EGL);
+
+  meta_set_is_wayland_compositor (opt_wayland);
+
   if (g_get_home_dir ())
     if (chdir (g_get_home_dir ()) < 0)
       meta_warning ("Could not change to home directory %s.\n",
@@ -430,9 +425,16 @@ meta_init (void)
   g_irepository_prepend_search_path (MUTTER_PKGLIBDIR);
 #endif
 
-  meta_set_syncing (opt_sync || (g_getenv ("MUTTER_SYNC") != NULL));
+  if (meta_is_wayland_compositor ())
+    {
+      /* NB: When running as a hybrid wayland compositor we run our own headless X
+       * server so the user can't control the X display to connect too. */
+      meta_wayland_init ();
+    }
+  else
+    meta_select_display (opt_display_name);
 
-  meta_select_display (opt_display_name);
+  meta_set_syncing (opt_sync || (g_getenv ("MUTTER_SYNC") != NULL));
   
   if (opt_replace_wm)
     meta_set_replace_current_wm (TRUE);
@@ -441,13 +443,20 @@ meta_init (void)
     meta_fatal ("Can't specify both SM save file and SM client id\n");
   
   meta_main_loop = g_main_loop_new (NULL, FALSE);
-  
+
   meta_ui_init ();
 
-  /*
-   * Clutter can only be initialized after the UI.
-   */
-  meta_clutter_init ();
+  /* If we are running with wayland then we don't wait until we have
+   * an X connection before initializing clutter we instead initialize
+   * it earlier since we need to initialize the GL driver so the driver
+   * can register any needed wayland extensions. */
+  if (!meta_is_wayland_compositor ())
+    {
+      /*
+       * Clutter can only be initialized after the UI.
+       */
+      meta_clutter_init ();
+    }
 
   /*
    * XXX: We cannot handle high dpi scaling yet, so fix the scale to 1
@@ -495,6 +504,32 @@ meta_register_with_session (void)
   g_free (opt_client_id);
 }
 
+/**
+ * meta_activate_session:
+ *
+ * Tells mutter to activate the session. When mutter is a
+ * Wayland compositor, this tells logind to switch over to
+ * the new session.
+ */
+gboolean
+meta_activate_session (void)
+{
+  if (meta_is_wayland_compositor ())
+    {
+      MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
+      GError *error = NULL;
+
+      if (!meta_wayland_compositor_activate_session (compositor, &error))
+        {
+          g_warning ("Could not activate session: %s\n", error->message);
+          g_error_free (error);
+          return FALSE;
+        }
+    }
+
+  return TRUE;
+}
+
 /**
  * meta_run: (skip)
  *

src/core/meta-cursor-tracker-private.h

@@ -1,7 +1,7 @@
 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
 
 /*
- * Copyright (C) 2013 Red Hat, Inc.
+ * 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
@@ -23,10 +23,27 @@
 #define META_CURSOR_TRACKER_PRIVATE_H
 
 #include <meta/meta-cursor-tracker.h>
+#include <wayland-server.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_set_grab_cursor     (MetaCursorTracker  *tracker,
+                                                  MetaCursor          cursor);
+void     meta_cursor_tracker_set_window_cursor   (MetaCursorTracker  *tracker,
+                                                  struct wl_resource *buffer,
+                                                  int                 hot_x,
+                                                  int                 hot_y);
+void     meta_cursor_tracker_unset_window_cursor (MetaCursorTracker  *tracker);
+void     meta_cursor_tracker_set_root_cursor     (MetaCursorTracker  *tracker,
+                                                  MetaCursor          cursor);
+
+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_force_update (MetaCursorTracker *tracker);
+
 #endif

src/core/meta-cursor-tracker.c

@@ -22,16 +22,21 @@
 /**
  * SECTION:cursor-tracker
  * @title: MetaCursorTracker
- * @short_description: Mutter cursor tracking helper
+ * @short_description: Mutter cursor tracking helper. Originally only
+ *                     tracking the cursor image, now more of a "core
+ *                     pointer abstraction"
  */
 
 #include <config.h>
+#include <string.h>
 #include <meta/main.h>
 #include <meta/util.h>
 #include <meta/errors.h>
 
 #include <cogl/cogl.h>
+#include <cogl/cogl-wayland-server.h>
 #include <clutter/clutter.h>
+#include <gbm.h>
 
 #include <gdk/gdk.h>
 #include <gdk/gdkx.h>
@@ -42,19 +47,65 @@
 
 #include "meta-cursor-tracker-private.h"
 #include "screen-private.h"
+#include "monitor-private.h"
+
+#include "wayland/meta-wayland-private.h"
 
 #define META_WAYLAND_DEFAULT_CURSOR_HOTSPOT_X 7
 #define META_WAYLAND_DEFAULT_CURSOR_HOTSPOT_Y 4
 
+typedef struct {
+  CoglTexture2D *texture;
+  struct gbm_bo *bo;
+  int hot_x, hot_y;
+
+  int ref_count;
+} MetaCursorReference;
+
 struct _MetaCursorTracker {
   GObject parent_instance;
 
   MetaScreen *screen;
 
   gboolean is_showing;
+  gboolean has_hw_cursor;
 
-  CoglTexture2D *sprite;
-  int hot_x, hot_y;
+  /* The cursor tracker stores the cursor for the current grab
+   * operation, the cursor for the window with pointer focus, and
+   * the cursor for the root window, which contains either the
+   * default arrow cursor or the 'busy' hourglass if we're launching
+   * an app.
+   *
+   * We choose the first one available -- if there's a grab cursor,
+   * we choose that cursor, if there's window cursor, we choose that,
+   * otherwise we choose the root cursor.
+   *
+   * The displayed_cursor contains the chosen cursor.
+   */
+  MetaCursorReference *displayed_cursor;
+
+  MetaCursorReference *grab_cursor;
+
+  /* Wayland clients can set a NULL buffer as their cursor 
+   * explicitly, which means that we shouldn't display anything.
+   * So, we can't simply store a NULL in window_cursor to
+   * determine an unset window cursor; we need an extra boolean.
+   */
+  gboolean has_window_cursor;
+  MetaCursorReference *window_cursor;
+
+  MetaCursorReference *root_cursor;
+
+  MetaCursorReference *default_cursors[META_CURSOR_LAST];
+
+  int current_x, current_y;
+  MetaRectangle current_rect;
+  MetaRectangle previous_rect;
+  gboolean previous_is_valid;
+
+  CoglPipeline *pipeline;
+  int drm_fd;
+  struct gbm_device *gbm;
 };
 
 struct _MetaCursorTrackerClass {
@@ -70,6 +121,35 @@ enum {
 
 static guint signals[LAST_SIGNAL];
 
+static void meta_cursor_tracker_set_crtc_has_hw_cursor (MetaCursorTracker *tracker,
+                                                        MetaCRTC          *crtc,
+                                                        gboolean           has_hw_cursor);
+static void sync_cursor (MetaCursorTracker *tracker);
+
+static MetaCursorReference *
+meta_cursor_reference_ref (MetaCursorReference *self)
+{
+  g_assert (self->ref_count > 0);
+  self->ref_count++;
+
+  return self;
+}
+
+static void
+meta_cursor_reference_unref (MetaCursorReference *self)
+{
+  self->ref_count--;
+
+  if (self->ref_count == 0)
+    {
+      cogl_object_unref (self->texture);
+      if (self->bo)
+        gbm_bo_destroy (self->bo);
+
+      g_slice_free (MetaCursorReference, self);
+    }
+}
+
 static void
 translate_meta_cursor (MetaCursor   cursor,
                        guint       *glyph_out,
@@ -170,14 +250,244 @@ meta_display_create_x_cursor (MetaDisplay *display,
   return load_cursor_on_server (display, cursor);
 }
 
+static XcursorImage *
+load_cursor_on_client (MetaDisplay *display,
+                       MetaCursor   cursor)
+{
+  XcursorImage *image;
+  guint glyph;
+  const char *name;
+  const char *theme = XcursorGetTheme (display->xdisplay);
+  int size = XcursorGetDefaultSize (display->xdisplay);
+
+  translate_meta_cursor (cursor, &glyph, &name);
+
+  if (name != NULL)
+    image = XcursorLibraryLoadImage (name, theme, size);
+  else
+    image = XcursorShapeLoadImage (glyph, theme, size);
+
+  return image;
+}
+
+static MetaCursorReference *
+meta_cursor_reference_from_theme (MetaCursorTracker  *tracker,
+                                  MetaCursor          cursor)
+{
+  XcursorImage *image;
+  int width, height, rowstride;
+  CoglPixelFormat cogl_format;
+  uint32_t gbm_format;
+  ClutterBackend *clutter_backend;
+  CoglContext *cogl_context;
+  MetaCursorReference *self;
+
+  image = load_cursor_on_client (tracker->screen->display, cursor);
+  if (!image)
+    return NULL;
+
+  width           = image->width;
+  height          = image->height;
+  rowstride       = width * 4;
+
+  gbm_format = GBM_FORMAT_ARGB8888;
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+  cogl_format = COGL_PIXEL_FORMAT_BGRA_8888;
+#else
+  cogl_format = COGL_PIXEL_FORMAT_ARGB_8888;
+#endif
+
+  self = g_slice_new0 (MetaCursorReference);
+  self->ref_count = 1;
+  self->hot_x = image->xhot;
+  self->hot_y = image->yhot;
+
+  clutter_backend = clutter_get_default_backend ();
+  cogl_context = clutter_backend_get_cogl_context (clutter_backend);
+  self->texture = cogl_texture_2d_new_from_data (cogl_context,
+                                                 width, height,
+                                                 cogl_format,
+                                                 rowstride,
+                                                 (uint8_t*)image->pixels,
+                                                 NULL);
+
+  if (tracker->gbm)
+    {
+      if (width > 64 || height > 64)
+        {
+          meta_warning ("Invalid theme cursor size (must be at most 64x64)\n");
+          goto out;
+        }
+
+      if (gbm_device_is_format_supported (tracker->gbm, gbm_format,
+                                          GBM_BO_USE_CURSOR_64X64 | GBM_BO_USE_WRITE))
+        {
+          uint32_t buf[64 * 64];
+          int i;
+
+          self->bo = gbm_bo_create (tracker->gbm, 64, 64,
+                                    gbm_format, GBM_BO_USE_CURSOR_64X64 | GBM_BO_USE_WRITE);
+
+          memset (buf, 0, sizeof(buf));
+          for (i = 0; i < height; i++)
+            memcpy (buf + i * 64, image->pixels + i * width, width * 4);
+
+          gbm_bo_write (self->bo, buf, 64 * 64 * 4);
+        }
+      else
+        meta_warning ("HW cursor for format %d not supported\n", gbm_format);
+    }
+
+ out:
+  XcursorImageDestroy (image);
+
+  return self;
+}
+
+static MetaCursorReference *
+meta_cursor_reference_take_texture (CoglTexture2D *texture)
+{
+  MetaCursorReference *self;
+
+  self = g_slice_new0 (MetaCursorReference);
+  self->ref_count = 1;
+
+  self->texture = texture;
+
+  return self;
+}
+
+static MetaCursorReference *
+meta_cursor_reference_from_buffer (MetaCursorTracker  *tracker,
+                                   struct wl_resource *buffer,
+                                   int                 hot_x,
+                                   int                 hot_y)
+{
+  ClutterBackend *backend;
+  CoglContext *cogl_context;
+  MetaCursorReference *self;
+  CoglPixelFormat cogl_format;
+  struct wl_shm_buffer *shm_buffer;
+  uint32_t gbm_format;
+
+  self = g_slice_new0 (MetaCursorReference);
+  self->ref_count = 1;
+  self->hot_x = hot_x;
+  self->hot_y = hot_y;
+
+  backend = clutter_get_default_backend ();
+  cogl_context = clutter_backend_get_cogl_context (backend);
+
+  shm_buffer = wl_shm_buffer_get (buffer);
+  if (shm_buffer)
+    {
+      int rowstride = wl_shm_buffer_get_stride (shm_buffer);
+      int width = wl_shm_buffer_get_width (shm_buffer);
+      int height = wl_shm_buffer_get_height (shm_buffer);
+
+      switch (wl_shm_buffer_get_format (shm_buffer))
+        {
+#if G_BYTE_ORDER == G_BIG_ENDIAN
+          case WL_SHM_FORMAT_ARGB8888:
+            cogl_format = COGL_PIXEL_FORMAT_ARGB_8888_PRE;
+            gbm_format = GBM_FORMAT_ARGB8888;
+            break;
+          case WL_SHM_FORMAT_XRGB8888:
+            cogl_format = COGL_PIXEL_FORMAT_ARGB_8888;
+            gbm_format = GBM_FORMAT_XRGB8888;
+            break;
+#else
+          case WL_SHM_FORMAT_ARGB8888:
+            cogl_format = COGL_PIXEL_FORMAT_BGRA_8888_PRE;
+            gbm_format = GBM_FORMAT_ARGB8888;
+            break;
+          case WL_SHM_FORMAT_XRGB8888:
+            cogl_format = COGL_PIXEL_FORMAT_BGRA_8888;
+            gbm_format = GBM_FORMAT_XRGB8888;
+            break;
+#endif
+          default:
+            g_warn_if_reached ();
+            cogl_format = COGL_PIXEL_FORMAT_ARGB_8888;
+            gbm_format = GBM_FORMAT_ARGB8888;
+        }
+
+      self->texture = cogl_texture_2d_new_from_data (cogl_context,
+                                                     width, height,
+                                                     cogl_format,
+                                                     rowstride,
+                                                     wl_shm_buffer_get_data (shm_buffer),
+                                                     NULL);
+
+      if (width > 64 || height > 64)
+        {
+          meta_warning ("Invalid cursor size (must be at most 64x64), falling back to software (GL) cursors\n");
+          return self;
+        }
+
+      if (tracker->gbm)
+        {
+          if (gbm_device_is_format_supported (tracker->gbm, gbm_format,
+                                              GBM_BO_USE_CURSOR_64X64 | GBM_BO_USE_WRITE))
+            {
+              uint8_t *data;
+              uint8_t buf[4 * 64 * 64];
+              int i;
+
+              self->bo = gbm_bo_create (tracker->gbm, 64, 64,
+                                        gbm_format, GBM_BO_USE_CURSOR_64X64 | GBM_BO_USE_WRITE);
+
+              data = wl_shm_buffer_get_data (shm_buffer);
+              memset (buf, 0, sizeof(buf));
+              for (i = 0; i < height; i++)
+                memcpy (buf + i * 4 * 64, data + i * rowstride, 4 * width);
+
+              gbm_bo_write (self->bo, buf, 64 * 64 * 4);
+            }
+          else
+            meta_warning ("HW cursor for format %d not supported\n", gbm_format);
+        }
+    }
+  else
+    {
+      int width, height;
+
+      self->texture = cogl_wayland_texture_2d_new_from_buffer (cogl_context, buffer, NULL);
+      width = cogl_texture_get_width (COGL_TEXTURE (self->texture));
+      height = cogl_texture_get_height (COGL_TEXTURE (self->texture));
+
+      /* HW cursors must be 64x64, but 64x64 is huge, and no cursor theme actually uses
+         that, so themed cursors must be padded with transparent pixels to fill the
+         overlay. This is trivial if we have CPU access to the data, but it's not
+         possible if the buffer is in GPU memory (and possibly tiled too), so if we
+         don't get the right size, we fallback to GL.
+      */
+      if (width != 64 || height != 64)
+        {
+          meta_warning ("Invalid cursor size (must be 64x64), falling back to software (GL) cursors\n");
+          return self;
+        }
+
+      if (tracker->gbm)
+        {
+          self->bo = gbm_bo_import (tracker->gbm, GBM_BO_IMPORT_WL_BUFFER,
+                                    buffer, GBM_BO_USE_CURSOR_64X64);
+          if (!self->bo)
+            meta_warning ("Importing HW cursor from wl_buffer failed\n");
+        }
+     }
+
+  return self;
+}
+
 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
-   */
+     detecting if the system mouse cursor is showing or not.
+
+     On wayland we start with the cursor showing
+  */
   self->is_showing = TRUE;
 }
 
@@ -185,9 +495,21 @@ static void
 meta_cursor_tracker_finalize (GObject *object)
 {
   MetaCursorTracker *self = META_CURSOR_TRACKER (object);
+  int i;
 
-  if (self->sprite)
-    cogl_object_unref (self->sprite);
+  if (self->displayed_cursor)
+    meta_cursor_reference_unref (self->displayed_cursor);
+  if (self->root_cursor)
+    meta_cursor_reference_unref (self->root_cursor);
+
+  for (i = 0; i < META_CURSOR_LAST; i++)
+    if (self->default_cursors[i])
+      meta_cursor_reference_unref (self->default_cursors[i]);
+
+  if (self->pipeline)
+    cogl_object_unref (self->pipeline);
+  if (self->gbm)
+    gbm_device_destroy (self->gbm);
 
   G_OBJECT_CLASS (meta_cursor_tracker_parent_class)->finalize (object);
 }
@@ -207,6 +529,68 @@ meta_cursor_tracker_class_init (MetaCursorTrackerClass *klass)
                                           G_TYPE_NONE, 0);
 }
 
+static void
+on_monitors_changed (MetaMonitorManager *monitors,
+                     MetaCursorTracker  *tracker)
+{
+  MetaCRTC *crtcs;
+  unsigned int i, n_crtcs;
+
+  if (!tracker->has_hw_cursor)
+    return;
+
+  /* Go through the new list of monitors, find out where the cursor is */
+  meta_monitor_manager_get_resources (monitors, NULL, NULL, &crtcs, &n_crtcs, NULL, NULL);
+
+  for (i = 0; i < n_crtcs; i++)
+    {
+      MetaRectangle *rect = &crtcs[i].rect;
+      gboolean has;
+
+      has = meta_rectangle_overlap (&tracker->current_rect, rect);
+
+      /* Need to do it unconditionally here, our tracking is
+         wrong because we reloaded the CRTCs */
+      meta_cursor_tracker_set_crtc_has_hw_cursor (tracker, &crtcs[i], has);
+    }
+}
+
+static MetaCursorTracker *
+make_wayland_cursor_tracker (MetaScreen *screen)
+{
+  MetaWaylandCompositor *compositor;
+  CoglContext *ctx;
+  MetaMonitorManager *monitors;
+  MetaCursorTracker *self;
+
+  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;
+  meta_cursor_tracker_update_position (self,
+                                       wl_fixed_to_int (compositor->seat->pointer.x),
+                                       wl_fixed_to_int (compositor->seat->pointer.y));
+
+#if defined(CLUTTER_WINDOWING_EGL)
+  if (clutter_check_windowing_backend (CLUTTER_WINDOWING_EGL))
+    {
+      CoglRenderer *cogl_renderer = cogl_display_get_renderer (cogl_context_get_display (ctx));
+      self->drm_fd = cogl_kms_renderer_get_kms_fd (cogl_renderer);
+      self->gbm = gbm_create_device (self->drm_fd);
+    }
+#endif
+
+  monitors = meta_monitor_manager_get ();
+  g_signal_connect_object (monitors, "monitors-changed",
+                           G_CALLBACK (on_monitors_changed), self, 0);
+
+  return self;
+}
+
 static MetaCursorTracker *
 make_x11_cursor_tracker (MetaScreen *screen)
 {
@@ -236,18 +620,36 @@ meta_cursor_tracker_get_for_screen (MetaScreen *screen)
   if (screen->cursor_tracker)
     return screen->cursor_tracker;
 
-  self = make_x11_cursor_tracker (screen);
+  if (meta_is_wayland_compositor ())
+    self = make_wayland_cursor_tracker (screen);
+  else
+    self = make_x11_cursor_tracker (screen);
 
   screen->cursor_tracker = self;
   return self;
 }
 
+static void
+set_window_cursor (MetaCursorTracker   *tracker,
+                   gboolean             has_cursor,
+                   MetaCursorReference *cursor)
+{
+  g_clear_pointer (&tracker->window_cursor, meta_cursor_reference_unref);
+  if (cursor)
+    tracker->window_cursor = meta_cursor_reference_ref (cursor);
+  tracker->has_window_cursor = has_cursor;
+  sync_cursor (tracker);
+}
+
 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;
 
@@ -255,8 +657,7 @@ meta_cursor_tracker_handle_xevent (MetaCursorTracker *tracker,
   if (notify_event->subtype != XFixesDisplayCursorNotify)
     return FALSE;
 
-  g_clear_pointer (&tracker->sprite, cogl_object_unref);
-  g_signal_emit (tracker, signals[CURSOR_CHANGED], 0);
+  set_window_cursor (tracker, FALSE, NULL);
 
   return TRUE;
 }
@@ -270,7 +671,7 @@ ensure_xfixes_cursor (MetaCursorTracker *tracker)
   gboolean free_cursor_data;
   CoglContext *ctx;
 
-  if (tracker->sprite)
+  if (tracker->has_window_cursor)
     return;
 
   cursor_image = XFixesGetCursorImage (tracker->screen->display->xdisplay);
@@ -317,9 +718,11 @@ ensure_xfixes_cursor (MetaCursorTracker *tracker)
 
   if (sprite != NULL)
     {
-      tracker->sprite = sprite;
-      tracker->hot_x = cursor_image->xhot;
-      tracker->hot_y = cursor_image->yhot;
+      MetaCursorReference *cursor = meta_cursor_reference_take_texture (sprite);
+      cursor->hot_x = cursor_image->xhot;
+      cursor->hot_y = cursor_image->yhot;
+
+      set_window_cursor (tracker, TRUE, cursor);
     }
   XFree (cursor_image);
 }
@@ -334,9 +737,13 @@ meta_cursor_tracker_get_sprite (MetaCursorTracker *tracker)
 {
   g_return_val_if_fail (META_IS_CURSOR_TRACKER (tracker), NULL);
 
-  ensure_xfixes_cursor (tracker);
+  if (!meta_is_wayland_compositor ())
+    ensure_xfixes_cursor (tracker);
 
-  return COGL_TEXTURE (tracker->sprite);
+  if (tracker->displayed_cursor)
+    return COGL_TEXTURE (tracker->displayed_cursor->texture);
+  else
+    return NULL;
 }
 
 /**
@@ -353,12 +760,70 @@ meta_cursor_tracker_get_hot (MetaCursorTracker *tracker,
 {
   g_return_if_fail (META_IS_CURSOR_TRACKER (tracker));
 
-  ensure_xfixes_cursor (tracker);
+  if (!meta_is_wayland_compositor ())
+    ensure_xfixes_cursor (tracker);
 
-  if (x)
-    *x = tracker->hot_x;
-  if (y)
-    *y = tracker->hot_y;
+  if (tracker->displayed_cursor)
+    {
+      MetaCursorReference *displayed_cursor = tracker->displayed_cursor;
+      if (x)
+        *x = displayed_cursor->hot_x;
+      if (y)
+        *y = displayed_cursor->hot_y;
+    }
+  else
+    {
+      if (x)
+        *x = 0;
+      if (y)
+        *y = 0;
+    }
+}
+
+static MetaCursorReference *
+ensure_wayland_cursor (MetaCursorTracker *tracker,
+                       MetaCursor         cursor)
+{
+  if (!tracker->default_cursors[cursor])
+    {
+      tracker->default_cursors[cursor] = meta_cursor_reference_from_theme (tracker, cursor);
+      if (!tracker->default_cursors[cursor])
+        meta_warning ("Failed to load cursor from theme\n");
+    }
+
+  return meta_cursor_reference_ref (tracker->default_cursors[cursor]);
+}
+
+void
+meta_cursor_tracker_set_grab_cursor (MetaCursorTracker *tracker,
+                                     MetaCursor         cursor)
+{
+  g_clear_pointer (&tracker->grab_cursor, meta_cursor_reference_unref);
+  if (cursor != META_CURSOR_DEFAULT)
+    tracker->grab_cursor = ensure_wayland_cursor (tracker, cursor);
+  sync_cursor (tracker);
+}
+
+void
+meta_cursor_tracker_set_window_cursor (MetaCursorTracker  *tracker,
+                                       struct wl_resource *buffer,
+                                       int                 hot_x,
+                                       int                 hot_y)
+{
+  MetaCursorReference *cursor;
+
+  if (buffer)
+    cursor = meta_cursor_reference_from_buffer (tracker, buffer, hot_x, hot_y);
+  else
+    cursor = NULL;
+
+  set_window_cursor (tracker, TRUE, cursor);
+}
+
+void
+meta_cursor_tracker_unset_window_cursor (MetaCursorTracker *tracker)
+{
+  set_window_cursor (tracker, FALSE, NULL);
 }
 
 void
@@ -374,13 +839,240 @@ meta_cursor_tracker_set_root_cursor (MetaCursorTracker *tracker,
   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 ())
+    {
+      g_clear_pointer (&tracker->root_cursor, meta_cursor_reference_unref);
+      tracker->root_cursor = ensure_wayland_cursor (tracker, cursor);
+      sync_cursor (tracker);
+    }
+}
+
+static void
+update_hw_cursor (MetaCursorTracker *tracker)
+{
+  MetaMonitorManager *monitors;
+  MetaCRTC *crtcs;
+  unsigned int i, n_crtcs;
+  gboolean enabled;
+
+  enabled = tracker->displayed_cursor && tracker->displayed_cursor->bo != NULL;
+  tracker->has_hw_cursor = enabled;
+
+  monitors = meta_monitor_manager_get ();
+  meta_monitor_manager_get_resources (monitors, NULL, NULL, &crtcs, &n_crtcs, NULL, NULL);
+
+  for (i = 0; i < n_crtcs; i++)
+    {
+      MetaRectangle *rect = &crtcs[i].rect;
+      gboolean has;
+
+      has = enabled && meta_rectangle_overlap (&tracker->current_rect, rect);
+
+      if (has || crtcs[i].has_hw_cursor)
+        meta_cursor_tracker_set_crtc_has_hw_cursor (tracker, &crtcs[i], has);
+    }
+}
+
+static void
+move_hw_cursor (MetaCursorTracker *tracker)
+{
+  MetaMonitorManager *monitors;
+  MetaCRTC *crtcs;
+  unsigned int i, n_crtcs;
+
+  monitors = meta_monitor_manager_get ();
+  meta_monitor_manager_get_resources (monitors, NULL, NULL, &crtcs, &n_crtcs, NULL, NULL);
+
+  g_assert (tracker->has_hw_cursor);
+
+  for (i = 0; i < n_crtcs; i++)
+    {
+      MetaRectangle *rect = &crtcs[i].rect;
+      gboolean has;
+
+      has = meta_rectangle_overlap (&tracker->current_rect, rect);
+
+      if (has != crtcs[i].has_hw_cursor)
+        meta_cursor_tracker_set_crtc_has_hw_cursor (tracker, &crtcs[i], has);
+      if (has)
+        drmModeMoveCursor (tracker->drm_fd, crtcs[i].crtc_id,
+                           tracker->current_rect.x - rect->x,
+                           tracker->current_rect.y - rect->y);
+    }
+}
+
+static MetaCursorReference *
+get_displayed_cursor (MetaCursorTracker *tracker)
+{
+  if (!tracker->is_showing)
+    return NULL;
+
+  if (tracker->grab_cursor)
+    return tracker->grab_cursor;
+
+  if (tracker->has_window_cursor)
+    return tracker->window_cursor;
+
+  return tracker->root_cursor;
+}
+
+static void
+sync_displayed_cursor (MetaCursorTracker *tracker)
+{
+  MetaCursorReference *displayed_cursor = get_displayed_cursor (tracker);
+
+  if (tracker->displayed_cursor == displayed_cursor)
+    return;
+
+  g_clear_pointer (&tracker->displayed_cursor, meta_cursor_reference_unref);
+  if (displayed_cursor)
+    tracker->displayed_cursor = meta_cursor_reference_ref (displayed_cursor);
+
+  if (meta_is_wayland_compositor ())
+    {
+      if (displayed_cursor)
+        cogl_pipeline_set_layer_texture (tracker->pipeline, 0, COGL_TEXTURE (displayed_cursor->texture));
+      else
+        cogl_pipeline_set_layer_texture (tracker->pipeline, 0, NULL);
+
+      update_hw_cursor (tracker);
+    }
+
+  g_signal_emit (tracker, signals[CURSOR_CHANGED], 0);
+}
+
+static void
+meta_cursor_tracker_queue_redraw (MetaCursorTracker *tracker)
+{
+  MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
+  ClutterActor *stage = compositor->stage;
+  cairo_rectangle_int_t clip;
+
+  g_assert (meta_is_wayland_compositor ());
+
+  if (tracker->previous_is_valid)
+    {
+      cairo_rectangle_int_t clip = {
+        .x = tracker->previous_rect.x,
+        .y = tracker->previous_rect.y,
+        .width = tracker->previous_rect.width,
+        .height = tracker->previous_rect.height
+      };
+      clutter_actor_queue_redraw_with_clip (stage, &clip);
+      tracker->previous_is_valid = FALSE;
+    }
+
+  if (tracker->has_hw_cursor || !tracker->displayed_cursor)
+    return;
+
+  clip.x = tracker->current_rect.x;
+  clip.y = tracker->current_rect.y;
+  clip.width = tracker->current_rect.width;
+  clip.height = tracker->current_rect.height;
+  clutter_actor_queue_redraw_with_clip (stage, &clip);
+}
+
+static void
+sync_cursor (MetaCursorTracker *tracker)
+{
+  MetaCursorReference *displayed_cursor;
+
+  sync_displayed_cursor (tracker);
+  displayed_cursor = tracker->displayed_cursor;
+
+  if (displayed_cursor)
+    {
+      tracker->current_rect.x = tracker->current_x - displayed_cursor->hot_x;
+      tracker->current_rect.y = tracker->current_y - displayed_cursor->hot_y;
+      tracker->current_rect.width = cogl_texture_get_width (COGL_TEXTURE (displayed_cursor->texture));
+      tracker->current_rect.height = cogl_texture_get_height (COGL_TEXTURE (displayed_cursor->texture));
+    }
+  else
+    {
+      tracker->current_rect.x = 0;
+      tracker->current_rect.y = 0;
+      tracker->current_rect.width = 0;
+      tracker->current_rect.height = 0;
+    }
+
+  if (meta_is_wayland_compositor ())
+    {
+      if (tracker->has_hw_cursor)
+        move_hw_cursor (tracker);
+      else
+        meta_cursor_tracker_queue_redraw (tracker);
+    }
 }
 
 void
-meta_cursor_tracker_get_pointer (MetaCursorTracker   *tracker,
-                                 int                 *x,
-                                 int                 *y,
-                                 ClutterModifierType *mods)
+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;
+
+  sync_cursor (tracker);
+}
+
+void
+meta_cursor_tracker_paint (MetaCursorTracker *tracker)
+{
+  g_assert (meta_is_wayland_compositor ());
+
+  if (tracker->has_hw_cursor || !tracker->displayed_cursor)
+    return;
+
+  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;
+}
+
+static void
+meta_cursor_tracker_set_crtc_has_hw_cursor (MetaCursorTracker *tracker,
+                                            MetaCRTC          *crtc,
+                                            gboolean           has)
+{
+  if (has)
+    {
+      MetaCursorReference *displayed_cursor = tracker->displayed_cursor;
+      union gbm_bo_handle handle;
+      int width, height;
+      int hot_x, hot_y;
+
+      handle = gbm_bo_get_handle (displayed_cursor->bo);
+      width = gbm_bo_get_width (displayed_cursor->bo);
+      height = gbm_bo_get_height (displayed_cursor->bo);
+      hot_x = displayed_cursor->hot_x;
+      hot_y = displayed_cursor->hot_y;
+
+      drmModeSetCursor2 (tracker->drm_fd, crtc->crtc_id, handle.u32,
+                         width, height, hot_x, hot_y);
+      crtc->has_hw_cursor = TRUE;
+    }
+  else
+    {
+      drmModeSetCursor2 (tracker->drm_fd, crtc->crtc_id, 0, 0, 0, 0, 0);
+      crtc->has_hw_cursor = FALSE;
+    }
+}
+
+static void
+get_pointer_position_gdk (int         *x,
+                          int         *y,
+                          int         *mods)
 {
   GdkDeviceManager *gmanager;
   GdkDevice *gdevice;
@@ -390,9 +1082,48 @@ meta_cursor_tracker_get_pointer (MetaCursorTracker   *tracker,
   gdevice = gdk_x11_device_manager_lookup (gmanager, META_VIRTUAL_CORE_POINTER_ID);
 
   gdk_device_get_position (gdevice, &gscreen, x, y);
-  gdk_device_get_state (gdevice,
-                        gdk_screen_get_root_window (gscreen),
-                        NULL, (GdkModifierType*)mods);
+  if (mods)
+    gdk_device_get_state (gdevice,
+                          gdk_screen_get_root_window (gscreen),
+                          NULL, (GdkModifierType*)mods);
+}
+
+static void
+get_pointer_position_clutter (int         *x,
+                              int         *y,
+                              int         *mods)
+{
+  ClutterDeviceManager *cmanager;
+  ClutterInputDevice *cdevice;
+  ClutterPoint point;
+
+  cmanager = clutter_device_manager_get_default ();
+  cdevice = clutter_device_manager_get_core_device (cmanager, CLUTTER_POINTER_DEVICE);
+
+  clutter_input_device_get_coords (cdevice, NULL, &point);
+  if (x)
+    *x = point.x;
+  if (y)
+    *y = point.y;
+  if (mods)
+    *mods = clutter_input_device_get_modifier_state (cdevice);
+}
+
+void
+meta_cursor_tracker_get_pointer (MetaCursorTracker   *tracker,
+                                 int                 *x,
+                                 int                 *y,
+                                 ClutterModifierType *mods)
+{
+  /* We can't use the clutter interface when not running as a wayland compositor,
+     because we need to query the server, rather than using the last cached value.
+     OTOH, on wayland we can't use GDK, because that only sees the events
+     we forward to xwayland.
+  */
+  if (meta_is_wayland_compositor ())
+    get_pointer_position_clutter (x, y, (int*)mods);
+  else
+    get_pointer_position_gdk (x, y, (int*)mods);
 }
 
 void
@@ -403,10 +1134,26 @@ meta_cursor_tracker_set_pointer_visible (MetaCursorTracker *tracker,
     return;
   tracker->is_showing = visible;
 
-  if (visible)
-    XFixesShowCursor (tracker->screen->display->xdisplay,
-                      tracker->screen->xroot);
+  if (meta_is_wayland_compositor ())
+    {
+      sync_cursor (tracker);
+    }
   else
-    XFixesHideCursor (tracker->screen->display->xdisplay,
-                      tracker->screen->xroot);
+    {
+      if (visible)
+        XFixesShowCursor (tracker->screen->display->xdisplay,
+                          tracker->screen->xroot);
+      else
+        XFixesHideCursor (tracker->screen->display->xdisplay,
+                          tracker->screen->xroot);
+    }
+}
+
+void
+meta_cursor_tracker_force_update (MetaCursorTracker *tracker)
+{
+  g_assert (meta_is_wayland_compositor ());
+
+  update_hw_cursor (tracker);
+  sync_cursor (tracker);
 }

src/core/meta-idle-monitor-private.h

@@ -24,5 +24,6 @@
 
 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

@@ -55,6 +55,9 @@ struct _MetaIdleMonitor
   int          sync_event_base;
   XSyncCounter counter;
   XSyncAlarm   user_active_alarm;
+
+  /* Wayland implementation */
+  guint64      last_event_time;
 };
 
 struct _MetaIdleMonitorClass
@@ -74,6 +77,9 @@ typedef struct
   /* x11 */
   XSyncAlarm                xalarm;
   int                       idle_source_id;
+
+  /* wayland */
+  GSource                  *timeout_source;
 } MetaIdleMonitorWatch;
 
 enum
@@ -303,6 +309,9 @@ idle_monitor_watch_free (MetaIdleMonitorWatch *watch)
       g_hash_table_remove (monitor->alarms, (gpointer) watch->xalarm);
     }
 
+  if (watch->timeout_source != NULL)
+    g_source_destroy (watch->timeout_source);
+
   g_object_unref (monitor);
   g_slice_free (MetaIdleMonitorWatch, watch);
 }
@@ -382,8 +391,11 @@ meta_idle_monitor_constructed (GObject *object)
 {
   MetaIdleMonitor *monitor = META_IDLE_MONITOR (object);
 
-  monitor->display = meta_get_display ()->xdisplay;
-  init_xsync (monitor);
+  if (!meta_is_wayland_compositor ())
+    {
+      monitor->display = meta_get_display ()->xdisplay;
+      init_xsync (monitor);
+    }
 }
 
 static void
@@ -462,6 +474,25 @@ meta_idle_monitor_get_for_device (int 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 gboolean
 fire_watch_idle (gpointer data)
 {
@@ -490,20 +521,37 @@ make_watch (MetaIdleMonitor           *monitor,
   watch->notify = notify;
   watch->timeout_msec = timeout_msec;
 
-  if (timeout_msec != 0)
+  if (meta_is_wayland_compositor ())
     {
-      watch->xalarm = _xsync_alarm_set (monitor, XSyncPositiveTransition, timeout_msec, TRUE);
+      if (timeout_msec != 0)
+        {
+          GSource *source = g_source_new (&wayland_source_funcs, sizeof (GSource));
 
-      g_hash_table_add (monitor->alarms, (gpointer) watch->xalarm);
+          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);
 
-      if (meta_idle_monitor_get_idletime (monitor) > (gint64)timeout_msec)
-        watch->idle_source_id = g_idle_add (fire_watch_idle, watch);
+          watch->timeout_source = source;
+        }
     }
   else if (monitor->user_active_alarm != None)
     {
-      watch->xalarm = monitor->user_active_alarm;
+      if (timeout_msec != 0)
+        {
+          watch->xalarm = _xsync_alarm_set (monitor, XSyncPositiveTransition, timeout_msec, TRUE);
 
-      set_alarm_enabled (monitor->display, monitor->user_active_alarm, TRUE);
+          g_hash_table_add (monitor->alarms, (gpointer) watch->xalarm);
+
+          if (meta_idle_monitor_get_idletime (monitor) > (gint64)timeout_msec)
+            watch->idle_source_id = g_idle_add (fire_watch_idle, watch);
+        }
+      else
+        {
+          watch->xalarm = monitor->user_active_alarm;
+
+          set_alarm_enabled (monitor->display, monitor->user_active_alarm, TRUE);
+        }
     }
 
   g_hash_table_insert (monitor->watches,
@@ -622,10 +670,69 @@ meta_idle_monitor_get_idletime (MetaIdleMonitor *monitor)
 {
   XSyncValue value;
 
-  if (!XSyncQueryCounter (monitor->display, monitor->counter, &value))
-    return -1;
+  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);
+      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
@@ -778,9 +885,6 @@ create_monitor_skeleton (GDBusObjectManagerServer *manager,
   meta_dbus_object_skeleton_set_idle_monitor (object, skeleton);
 
   g_dbus_object_manager_server_export (manager, G_DBUS_OBJECT_SKELETON (object));
-
-  g_object_unref (skeleton);
-  g_object_unref (object);
 }
 
 static void

src/core/monitor-config.c

@@ -77,7 +77,6 @@ struct _MetaMonitorConfig {
   GHashTable *configs;
   MetaConfiguration *current;
   gboolean current_is_stored;
-  gboolean current_is_for_laptop_lid;
   MetaConfiguration *previous;
 
   GFile *file;
@@ -840,9 +839,6 @@ meta_monitor_config_get_stored (MetaMonitorConfig *self,
   MetaConfiguration key;
   MetaConfiguration *stored;
 
-  if (n_outputs == 0)
-    return NULL;
-
   make_config_key (&key, outputs, n_outputs, -1);
   stored = g_hash_table_lookup (self->configs, &key);
 
@@ -877,8 +873,7 @@ apply_configuration (MetaMonitorConfig  *self,
 
   /* Stored (persistent) configurations override the previous one always.
      Also, we clear the previous configuration if the current one (which is
-     about to become previous) is stored, or if the current one has
-     different outputs.
+     about to become previous) is stored.
   */
   if (stored ||
       (self->current && self->current_is_stored))
@@ -889,27 +884,11 @@ apply_configuration (MetaMonitorConfig  *self,
     }
   else
     {
-      /* Despite the name, config_equal() only checks the set of outputs,
-         not their modes
-      */
-      if (self->current && config_equal (self->current, config))
-        {
-          self->previous = self->current;
-        }
-      else
-        {
-          if (self->current)
-            config_free (self->current);
-          self->previous = NULL;
-        }
+      self->previous = self->current;
     }
 
   self->current = config;
   self->current_is_stored = stored;
-  /* If true, we'll be overridden at the end of this call
-     inside turn_off_laptop_display()
-  */
-  self->current_is_for_laptop_lid = FALSE;
 
   if (self->current == self->previous)
     self->previous = NULL;
@@ -1026,16 +1005,8 @@ meta_monitor_config_apply_stored (MetaMonitorConfig  *self,
       if (self->lid_is_closed &&
           stored->n_outputs > 1 &&
           laptop_display_is_on (stored))
-        {
-          if (apply_configuration (self, make_laptop_lid_config (stored),
-                                   manager, FALSE))
-            {
-              self->current_is_for_laptop_lid = TRUE;
-              return TRUE;
-            }
-          else
-            return FALSE;
-        }
+        return apply_configuration (self, make_laptop_lid_config (stored),
+                                    manager, FALSE);
       else
         return apply_configuration (self, stored, manager, TRUE);
     }
@@ -1275,12 +1246,6 @@ meta_monitor_config_make_default (MetaMonitorConfig  *self,
   outputs = meta_monitor_manager_get_outputs (manager, &n_outputs);
   meta_monitor_manager_get_screen_limits (manager, &max_width, &max_height);
 
-  if (n_outputs == 0)
-    {
-      meta_verbose ("No output connected, not applying configuration\n");
-      return;
-    }
-
   default_config = make_default_config (self, outputs, n_outputs, max_width, max_height);
 
   if (default_config != NULL)
@@ -1382,7 +1347,6 @@ turn_off_laptop_display (MetaMonitorConfig  *self,
 
   new = make_laptop_lid_config (self->current);
   apply_configuration (self, new, manager, FALSE);
-  self->current_is_for_laptop_lid = TRUE;
 }
 
 static void
@@ -1402,7 +1366,7 @@ power_client_changed_cb (UpClient   *client,
 
       if (is_closed)
         turn_off_laptop_display (self, manager);
-      else if (self->current_is_for_laptop_lid)
+      else
         meta_monitor_config_restore_previous (self, manager);
     }
 }

src/core/monitor-kms.c

@@ -0,0 +1,938 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* 
+ * Copyright (C) 2013 Red Hat Inc.
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Author: Giovanni Campagna <gcampagn@redhat.com>
+ */
+
+#include "config.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <clutter/clutter.h>
+
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+#include <meta/main.h>
+#include <meta/errors.h>
+#include "monitor-private.h"
+#include "edid.h"
+
+#define ALL_WL_TRANSFORMS ((1 << (WL_OUTPUT_TRANSFORM_FLIPPED_270 + 1)) - 1)
+
+typedef struct {
+  drmModeConnector *connector;
+
+  unsigned n_encoders;
+  drmModeEncoderPtr *encoders;
+  drmModeEncoderPtr  current_encoder;
+
+  /* bitmasks of encoder position in the resources array */
+  uint32_t encoder_mask;
+  uint32_t enc_clone_mask;
+
+  uint32_t dpms_prop_id;
+  uint32_t edid_blob_id;
+} MetaOutputKms;
+
+struct _MetaMonitorManagerKms
+{
+  MetaMonitorManager parent_instance;
+
+  int fd;
+
+  drmModeConnector **connectors;
+  unsigned int       n_connectors;
+
+  drmModeEncoder   **encoders;
+  unsigned int       n_encoders;
+
+  drmModeEncoder    *current_encoder;
+};
+
+struct _MetaMonitorManagerKmsClass
+{
+  MetaMonitorManagerClass parent_class;
+};
+
+G_DEFINE_TYPE (MetaMonitorManagerKms, meta_monitor_manager_kms, META_TYPE_MONITOR_MANAGER);
+
+static void
+free_resources (MetaMonitorManagerKms *manager_kms)
+{
+  unsigned i;
+
+  for (i = 0; i < manager_kms->n_encoders; i++)
+    drmModeFreeEncoder (manager_kms->encoders[i]);
+  for (i = 0; i < manager_kms->n_connectors; i++)
+    drmModeFreeConnector (manager_kms->connectors[i]);
+
+  g_free (manager_kms->encoders);
+  g_free (manager_kms->connectors);
+}
+
+static int
+compare_outputs (const void *one,
+                 const void *two)
+{
+  const MetaOutput *o_one = one, *o_two = two;
+
+  return strcmp (o_one->name, o_two->name);
+}
+
+static char *
+make_output_name (drmModeConnector *connector)
+{
+  static const char * const connector_type_names[] = {
+    "unknown", "VGA", "DVII", "DVID", "DVID", "Composite",
+    "SVIDEO", "LVDS", "Component", "9PinDIN", "DisplayPort",
+    "HDMIA", "HDMIB", "TV", "eDP"
+  };
+  const char *connector_type_name;
+
+  if (connector->connector_type < G_N_ELEMENTS (connector_type_names))
+    connector_type_name = connector_type_names[connector->connector_type];
+  else
+    connector_type_name = "unknown";
+
+  return g_strdup_printf ("%s%d", connector_type_name, connector->connector_id);
+}
+
+static void
+meta_output_destroy_notify (MetaOutput *output)
+{
+  MetaOutputKms *output_kms;
+  unsigned i;
+
+  output_kms = output->driver_private;
+
+  for (i = 0; i < output_kms->n_encoders; i++)
+    drmModeFreeEncoder (output_kms->encoders[i]);
+  g_free (output_kms->encoders);
+
+  g_slice_free (MetaOutputKms, output_kms);
+}
+
+static void
+meta_monitor_mode_destroy_notify (MetaMonitorMode *output)
+{
+  g_slice_free (drmModeModeInfo, output->driver_private);
+}
+
+static gboolean
+drm_mode_equal (gconstpointer one,
+                gconstpointer two)
+{
+  const drmModeModeInfo *m_one = one;
+  const drmModeModeInfo *m_two = two;
+
+  return m_one->clock == m_two->clock &&
+    m_one->hdisplay == m_two->hdisplay &&
+    m_one->hsync_start == m_two->hsync_start &&
+    m_one->hsync_end == m_two->hsync_end &&
+    m_one->htotal == m_two->htotal &&
+    m_one->hskew == m_two->hskew &&
+    m_one->vdisplay == m_two->vdisplay &&
+    m_one->vsync_start == m_two->vsync_start &&
+    m_one->vsync_end == m_two->vsync_end &&
+    m_one->vtotal == m_two->vtotal &&
+    m_one->vscan == m_two->vscan &&
+    m_one->vrefresh == m_two->vrefresh &&
+    m_one->flags == m_two->flags &&
+    m_one->type == m_two->type &&
+    strncmp (m_one->name, m_two->name, DRM_DISPLAY_MODE_LEN) == 0;
+}
+
+static guint
+drm_mode_hash (gconstpointer ptr)
+{
+  const drmModeModeInfo *mode = ptr;
+  guint hash = 0;
+
+  /* We don't include the name in the hash because it's generally
+     derived from the other fields (hdisplay, vdisplay and flags)
+  */
+
+  hash ^= mode->clock;
+  hash ^= mode->hdisplay ^ mode->hsync_start ^ mode->hsync_end;
+  hash ^= mode->vdisplay ^ mode->vsync_start ^ mode->vsync_end;
+  hash ^= mode->vrefresh;
+  hash ^= mode->flags ^ mode->type;
+
+  return hash;
+}
+
+static void
+find_properties (MetaMonitorManagerKms *manager_kms,
+                 MetaOutputKms         *output_kms)
+{
+  drmModePropertyPtr prop;
+  int i;
+
+  for (i = 0; i < output_kms->connector->count_props; i++)
+    {
+      prop = drmModeGetProperty (manager_kms->fd, output_kms->connector->props[i]);
+      if (!prop)
+        continue;
+
+      if ((prop->flags & DRM_MODE_PROP_ENUM) &&
+          strcmp(prop->name, "DPMS") == 0)
+        output_kms->dpms_prop_id = prop->prop_id;
+      else if ((prop->flags & DRM_MODE_PROP_BLOB) &&
+               strcmp (prop->name, "EDID") == 0)
+        output_kms->edid_blob_id = output_kms->connector->prop_values[i];
+
+      drmModeFreeProperty(prop);
+    }
+}
+
+static GBytes *
+read_output_edid (MetaMonitorManagerKms *manager_kms,
+                  MetaOutput            *output)
+{
+  MetaOutputKms *output_kms = output->driver_private;
+  drmModePropertyBlobPtr edid_blob = NULL;
+
+  if (output_kms->edid_blob_id == 0)
+    return NULL;
+
+  edid_blob = drmModeGetPropertyBlob (manager_kms->fd, output_kms->edid_blob_id);
+  if (!edid_blob)
+    {
+      meta_warning ("Failed to read EDID of output %s: %s\n", output->name, strerror(errno));
+      return NULL;
+    }
+
+  if (edid_blob->length > 0)
+    return g_bytes_new_with_free_func (edid_blob->data, edid_blob->length,
+                                       (GDestroyNotify)drmModeFreePropertyBlob, edid_blob);
+  else
+    {
+      drmModeFreePropertyBlob (edid_blob);
+      return NULL;
+    }
+}
+
+static MetaMonitorMode *
+find_meta_mode (MetaMonitorManager    *manager,
+                const drmModeModeInfo *drm_mode)
+{
+  unsigned k;
+
+  for (k = 0; k < manager->n_modes; k++)
+    {
+      if (drm_mode_equal (drm_mode, manager->modes[k].driver_private))
+        return &manager->modes[k];
+    }
+
+  g_assert_not_reached ();
+  return NULL;
+}
+
+static MetaOutput *
+find_output_by_id (MetaOutput *outputs,
+                   unsigned    n_outputs,
+                   glong       id)
+{
+  unsigned i;
+
+  for (i = 0; i < n_outputs; i++)
+    if (outputs[i].output_id == id)
+      return &outputs[i];
+
+  return NULL;
+}
+
+static void
+meta_monitor_manager_kms_read_current (MetaMonitorManager *manager)
+{
+  MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
+  drmModeRes *resources;
+  GHashTable *modes;
+  GHashTableIter iter;
+  drmModeModeInfo *mode;
+  unsigned int i, j, k;
+  unsigned int n_actual_outputs;
+  int width, height;
+  MetaOutput *old_outputs;
+  unsigned int n_old_outputs;
+
+  resources = drmModeGetResources(manager_kms->fd);
+  modes = g_hash_table_new (drm_mode_hash, drm_mode_equal);
+
+  manager->max_screen_width = resources->max_width;
+  manager->max_screen_height = resources->max_height;
+
+  manager->power_save_mode = META_POWER_SAVE_ON;
+
+  old_outputs = manager->outputs;
+  n_old_outputs = manager->n_outputs;
+
+  /* Note: we must not free the public structures (output, crtc, monitor
+     mode and monitor info) here, they must be kept alive until the API
+     users are done with them after we emit monitors-changed, and thus
+     are freed by the platform-independent layer. */
+  free_resources (manager_kms);
+
+  manager_kms->n_connectors = resources->count_connectors;
+  manager_kms->connectors = g_new (drmModeConnector *, manager_kms->n_connectors);
+  for (i = 0; i < manager_kms->n_connectors; i++)
+    {
+      drmModeConnector *connector;
+
+      connector = drmModeGetConnector (manager_kms->fd, resources->connectors[i]);
+      manager_kms->connectors[i] = connector;
+
+      if (connector->connection == DRM_MODE_CONNECTED)
+        {
+          /* Collect all modes for this connector */
+          for (j = 0; j < (unsigned)connector->count_modes; j++)
+            g_hash_table_add (modes, &connector->modes[j]);
+        }
+    }
+
+  manager_kms->n_encoders = resources->count_encoders;
+  manager_kms->encoders = g_new (drmModeEncoder *, manager_kms->n_encoders);
+  for (i = 0; i < manager_kms->n_encoders; i++)
+    {
+      manager_kms->encoders[i] = drmModeGetEncoder (manager_kms->fd,
+                                                    resources->encoders[i]);
+    }
+
+  manager->n_modes = g_hash_table_size (modes);
+  manager->modes = g_new0 (MetaMonitorMode, manager->n_modes);
+  g_hash_table_iter_init (&iter, modes);
+  i = 0;
+  while (g_hash_table_iter_next (&iter, NULL, (gpointer)&mode))
+    {
+      MetaMonitorMode *meta_mode;
+
+      meta_mode = &manager->modes[i];
+
+      meta_mode->mode_id = i;
+      meta_mode->name = g_strndup (mode->name, DRM_DISPLAY_MODE_LEN);
+      meta_mode->width = mode->hdisplay;
+      meta_mode->height = mode->vdisplay;
+      meta_mode->refresh_rate = (1000 * mode->clock /
+                                 ((float)mode->htotal * mode->vtotal));
+
+      meta_mode->driver_private = g_slice_dup (drmModeModeInfo, mode);
+      meta_mode->driver_notify = (GDestroyNotify)meta_monitor_mode_destroy_notify;
+
+      i++;
+    }
+  g_hash_table_destroy (modes);
+
+  manager->n_crtcs = resources->count_crtcs;
+  manager->crtcs = g_new0 (MetaCRTC, manager->n_crtcs);
+  width = 0; height = 0;
+  for (i = 0; i < (unsigned)resources->count_crtcs; i++)
+    {
+      drmModeCrtc *crtc;
+      MetaCRTC *meta_crtc;
+
+      crtc = drmModeGetCrtc (manager_kms->fd, resources->crtcs[i]);
+
+      meta_crtc = &manager->crtcs[i];
+
+      meta_crtc->crtc_id = crtc->crtc_id;
+      meta_crtc->rect.x = crtc->x;
+      meta_crtc->rect.y = crtc->y;
+      meta_crtc->rect.width = crtc->width;
+      meta_crtc->rect.height = crtc->height;
+      meta_crtc->is_dirty = FALSE;
+      meta_crtc->transform = WL_OUTPUT_TRANSFORM_NORMAL;
+      /* FIXME: implement! */
+      meta_crtc->all_transforms = 1 << WL_OUTPUT_TRANSFORM_NORMAL;
+
+      if (crtc->mode_valid)
+        {
+          for (j = 0; j < manager->n_modes; j++)
+            {
+              if (drm_mode_equal (&crtc->mode, manager->modes[j].driver_private))
+                {
+                  meta_crtc->current_mode = &manager->modes[j];
+                  break;
+                }
+            }
+
+          width = MAX (width, meta_crtc->rect.x + meta_crtc->rect.width);
+          height = MAX (height, meta_crtc->rect.y + meta_crtc->rect.height);
+        }
+
+      drmModeFreeCrtc (crtc);
+    }
+
+  manager->screen_width = width;
+  manager->screen_height = height;
+
+  manager->outputs = g_new0 (MetaOutput, manager_kms->n_connectors);
+  n_actual_outputs = 0;
+
+  for (i = 0; i < manager_kms->n_connectors; i++)
+    {
+      MetaOutput *meta_output, *old_output;
+      MetaOutputKms *output_kms;
+      drmModeConnector *connector;
+      GArray *crtcs;
+      unsigned int crtc_mask;
+      GBytes *edid;
+
+      connector = manager_kms->connectors[i];
+      meta_output = &manager->outputs[n_actual_outputs];
+
+      if (connector->connection == DRM_MODE_CONNECTED)
+	{
+          meta_output->driver_private = output_kms = g_slice_new0 (MetaOutputKms);
+          meta_output->driver_notify = (GDestroyNotify)meta_output_destroy_notify;
+
+	  meta_output->output_id = connector->connector_id;
+	  meta_output->name = make_output_name (connector);
+	  meta_output->width_mm = connector->mmWidth;
+	  meta_output->height_mm = connector->mmHeight;
+
+          switch (connector->subpixel)
+            {
+            case DRM_MODE_SUBPIXEL_NONE:
+              meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_NONE;
+              break;
+            case DRM_MODE_SUBPIXEL_HORIZONTAL_RGB:
+              meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_HORIZONTAL_RGB;
+              break;
+            case DRM_MODE_SUBPIXEL_HORIZONTAL_BGR:
+              meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_HORIZONTAL_BGR;
+              break;
+            case DRM_MODE_SUBPIXEL_VERTICAL_RGB:
+              meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_VERTICAL_RGB;
+              break;
+            case DRM_MODE_SUBPIXEL_VERTICAL_BGR:
+              meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_VERTICAL_BGR;
+              break;
+            case DRM_MODE_SUBPIXEL_UNKNOWN:
+            default:
+              meta_output->subpixel_order = COGL_SUBPIXEL_ORDER_UNKNOWN;
+              break;
+            }
+
+	  meta_output->n_modes = connector->count_modes;
+	  meta_output->modes = g_new0 (MetaMonitorMode *, meta_output->n_modes);
+	  for (j = 0; j < meta_output->n_modes; j++)
+            meta_output->modes[j] = find_meta_mode (manager, &connector->modes[j]);
+	  meta_output->preferred_mode = meta_output->modes[0];
+
+          output_kms->connector = connector;
+          output_kms->n_encoders = connector->count_encoders;
+          output_kms->encoders = g_new0 (drmModeEncoderPtr, output_kms->n_encoders);
+
+          crtc_mask = ~(unsigned int)0;
+	  for (j = 0; j < output_kms->n_encoders; j++)
+	    {
+              output_kms->encoders[j] = drmModeGetEncoder (manager_kms->fd, connector->encoders[j]);
+
+              /* We only list CRTCs as supported if they are supported by all encoders
+                 for this connectors.
+
+                 This is what xf86-video-modesetting does (see drmmode_output_init())
+              */
+              crtc_mask &= output_kms->encoders[j]->possible_crtcs;
+
+              if (output_kms->encoders[j]->encoder_id == connector->encoder_id)
+                output_kms->current_encoder = output_kms->encoders[j];
+            }
+
+          crtcs = g_array_new (FALSE, FALSE, sizeof (MetaCRTC*));
+
+          for (j = 0; j < manager->n_crtcs; j++)
+            {
+              if (crtc_mask & (1 << j))
+                {
+                  MetaCRTC *crtc = &manager->crtcs[j];
+                  g_array_append_val (crtcs, crtc);
+		}
+	    }
+
+	  meta_output->n_possible_crtcs = crtcs->len;
+	  meta_output->possible_crtcs = (void*)g_array_free (crtcs, FALSE);
+
+          if (output_kms->current_encoder && output_kms->current_encoder->crtc_id != 0)
+            {
+              for (j = 0; j < manager->n_crtcs; j++)
+                {
+                  if (manager->crtcs[j].crtc_id == output_kms->current_encoder->crtc_id)
+                    {
+                      meta_output->crtc = &manager->crtcs[j];
+                      break;
+                    }
+                }
+            }
+          else
+            meta_output->crtc = NULL;
+
+          old_output = find_output_by_id (old_outputs, n_old_outputs,
+                                          meta_output->output_id);
+          if (old_output)
+            {
+              meta_output->is_primary = old_output->is_primary;
+              meta_output->is_presentation = old_output->is_presentation;
+            }
+          else
+            {
+              meta_output->is_primary = FALSE;
+              meta_output->is_presentation = FALSE;
+            }
+
+          find_properties (manager_kms, output_kms);
+
+          edid = read_output_edid (manager_kms, meta_output);
+          if (edid)
+            {
+              MonitorInfo *parsed_edid;
+              gsize len;
+
+              parsed_edid = decode_edid (g_bytes_get_data (edid, &len));
+              if (parsed_edid)
+                {
+                  meta_output->vendor = g_strndup (parsed_edid->manufacturer_code, 4);
+                  meta_output->product = g_strndup (parsed_edid->dsc_product_name, 14);
+                  meta_output->serial = g_strndup (parsed_edid->dsc_serial_number, 14);
+
+                  g_free (parsed_edid);
+                }
+
+              g_bytes_unref (edid);
+            }
+          if (!meta_output->vendor)
+            {
+              meta_output->vendor = g_strdup ("unknown");
+              meta_output->product = g_strdup ("unknown");
+              meta_output->serial = g_strdup ("unknown");
+            }
+
+          /* FIXME: backlight is a very driver specific thing unfortunately,
+             every DDX does its own thing, and the dumb KMS API does not include it.
+
+             For example, xf86-video-intel has a list of paths to probe in /sys/class/backlight
+             (one for each major HW maker, and then some).
+             We can't do the same because we're not root.
+             It might be best to leave backlight out of the story and rely on the setuid
+             helper in gnome-settings-daemon.
+          */
+	  meta_output->backlight_min = 0;
+          meta_output->backlight_max = 0;
+          meta_output->backlight = -1;
+
+	  n_actual_outputs++;
+	}
+    }
+
+  manager->n_outputs = n_actual_outputs;
+  manager->outputs = g_renew (MetaOutput, manager->outputs, manager->n_outputs);
+
+  /* Sort the outputs for easier handling in MetaMonitorConfig */
+  qsort (manager->outputs, manager->n_outputs, sizeof (MetaOutput), compare_outputs);
+
+  /* Now fix the clones.
+     Code mostly inspired by xf86-video-modesetting. */
+
+  /* XXX: intel hardware doesn't usually have clones, but I only have laptops with
+     intel cards, so this code was never tested! */
+  for (i = 0; i < manager->n_outputs; i++)
+    {
+      MetaOutput *meta_output;
+      MetaOutputKms *output_kms;
+
+      meta_output = &manager->outputs[i];
+      output_kms = meta_output->driver_private;
+
+      output_kms->enc_clone_mask = 0xff;
+      output_kms->encoder_mask = 0;
+
+      for (j = 0; j < output_kms->n_encoders; j++)
+	{
+	  for (k = 0; k < manager_kms->n_encoders; k++)
+	    {
+	      if (output_kms->encoders[j]->encoder_id == manager_kms->encoders[k]->encoder_id)
+		{
+                  output_kms->encoder_mask |= (1 << k);
+		  break;
+		}
+	    }
+
+          output_kms->enc_clone_mask &= output_kms->encoders[j]->possible_clones;
+	}
+    }
+
+  for (i = 0; i < manager->n_outputs; i++)
+    {
+      MetaOutput *meta_output;
+      MetaOutputKms *output_kms;
+
+      meta_output = &manager->outputs[i];
+      output_kms = meta_output->driver_private;
+
+      if (output_kms->enc_clone_mask == 0)
+        continue;
+
+      for (j = 0; j < manager->n_outputs; j++)
+        {
+          MetaOutput *meta_clone;
+          MetaOutputKms *clone_kms;
+
+          meta_clone = &manager->outputs[i];
+          clone_kms = meta_clone->driver_private;
+
+          if (meta_clone == meta_output)
+            continue;
+
+          if (clone_kms->encoder_mask == 0)
+            continue;
+
+          if (clone_kms->encoder_mask == output_kms->enc_clone_mask)
+            {
+              meta_output->n_possible_clones++;
+              meta_output->possible_clones = g_renew (MetaOutput *,
+                                                      meta_output->possible_clones,
+                                                      meta_output->n_possible_clones);
+              meta_output->possible_clones[meta_output->n_possible_clones - 1] = meta_clone;
+            }
+        }
+    }
+
+  drmModeFreeResources (resources);
+}
+
+static GBytes *
+meta_monitor_manager_kms_read_edid (MetaMonitorManager *manager,
+                                    MetaOutput         *output)
+{
+  MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
+
+  return read_output_edid (manager_kms, output);
+}
+
+static void
+meta_monitor_manager_kms_set_power_save_mode (MetaMonitorManager *manager,
+                                              MetaPowerSave       mode)
+{
+  MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
+  uint64_t state;
+  unsigned i;
+
+  switch (mode) {
+  case META_POWER_SAVE_ON:
+    state = DRM_MODE_DPMS_ON;
+    break;
+  case META_POWER_SAVE_STANDBY:
+    state = DRM_MODE_DPMS_STANDBY;
+    break;
+  case META_POWER_SAVE_SUSPEND:
+    state = DRM_MODE_DPMS_SUSPEND;
+    break;
+  case META_POWER_SAVE_OFF:
+    state = DRM_MODE_DPMS_OFF;
+    break;
+  default:
+    return;
+  }
+
+  for (i = 0; i < manager->n_outputs; i++)
+    {
+      MetaOutput *meta_output;
+      MetaOutputKms *output_kms;
+
+      meta_output = &manager->outputs[i];
+      output_kms = meta_output->driver_private;
+
+      if (output_kms->dpms_prop_id != 0)
+        {
+          int ok = drmModeConnectorSetProperty(manager_kms->fd, meta_output->output_id,
+                                               output_kms->dpms_prop_id, state);
+
+          if (ok < 0)
+            meta_warning ("Failed to set power save mode for output %s: %s\n",
+                          meta_output->name, strerror (errno));
+        }
+    }
+}
+
+static void
+crtc_free (CoglKmsCrtc *crtc)
+{
+  g_free (crtc->connectors);
+  g_slice_free (CoglKmsCrtc, crtc);
+}
+
+static void
+meta_monitor_manager_kms_apply_configuration (MetaMonitorManager *manager,
+                                              MetaCRTCInfo       **crtcs,
+                                              unsigned int         n_crtcs,
+                                              MetaOutputInfo     **outputs,
+                                              unsigned int         n_outputs)
+{
+  ClutterBackend *backend;
+  CoglContext *cogl_context;
+  CoglDisplay *cogl_display;
+  unsigned i;
+  GPtrArray *cogl_crtcs;
+  int screen_width, screen_height;
+  gboolean ok;
+  GError *error;
+
+  cogl_crtcs = g_ptr_array_new_full (manager->n_crtcs, (GDestroyNotify)crtc_free);
+  screen_width = 0; screen_height = 0;
+  for (i = 0; i < n_crtcs; i++)
+    {
+      MetaCRTCInfo *crtc_info = crtcs[i];
+      MetaCRTC *crtc = crtc_info->crtc;
+      CoglKmsCrtc *cogl_crtc;
+
+      crtc->is_dirty = TRUE;
+
+      cogl_crtc = g_slice_new0 (CoglKmsCrtc);
+      g_ptr_array_add (cogl_crtcs, cogl_crtc);
+
+      if (crtc_info->mode == NULL)
+        {
+          cogl_crtc->id = crtc->crtc_id;
+          cogl_crtc->x = 0;
+          cogl_crtc->y = 0;
+          cogl_crtc->count = 0;
+          memset (&cogl_crtc->mode, 0, sizeof (drmModeModeInfo));
+          cogl_crtc->connectors = NULL;
+          cogl_crtc->count = 0;
+
+          crtc->rect.x = 0;
+          crtc->rect.y = 0;
+          crtc->rect.width = 0;
+          crtc->rect.height = 0;
+          crtc->current_mode = NULL;
+        }
+      else
+        {
+          MetaMonitorMode *mode;
+          uint32_t *connectors;
+          unsigned int j, n_connectors;
+          int width, height;
+
+          mode = crtc_info->mode;
+
+          cogl_crtc->id = crtc->crtc_id;
+          cogl_crtc->x = crtc_info->x;
+          cogl_crtc->y = crtc_info->y;
+          cogl_crtc->count = n_connectors = crtc_info->outputs->len;
+          cogl_crtc->connectors = connectors = g_new (uint32_t, n_connectors);
+
+          for (j = 0; j < n_connectors; j++)
+            {
+              MetaOutput *output = g_ptr_array_index (crtc_info->outputs, j);
+
+              connectors[j] = output->output_id;
+
+              output->is_dirty = TRUE;
+              output->crtc = crtc;
+            }
+
+          memcpy (&cogl_crtc->mode, crtc_info->mode->driver_private,
+                  sizeof (drmModeModeInfo));
+
+          if (meta_monitor_transform_is_rotated (crtc_info->transform))
+            {
+              width = mode->height;
+              height = mode->width;
+            }
+          else
+            {
+              width = mode->width;
+              height = mode->height;
+            }
+
+          screen_width = MAX (screen_width, crtc_info->x + width);
+          screen_height = MAX (screen_height, crtc_info->y + height);
+
+          crtc->rect.x = crtc_info->x;
+          crtc->rect.y = crtc_info->y;
+          crtc->rect.width = width;
+          crtc->rect.height = height;
+          crtc->current_mode = mode;
+          crtc->transform = crtc_info->transform;
+        }
+    }
+
+  /* Disable CRTCs not mentioned in the list (they have is_dirty == FALSE,
+     because they weren't seen in the first loop) */
+  for (i = 0; i < manager->n_crtcs; i++)
+    {
+      MetaCRTC *crtc = &manager->crtcs[i];
+      CoglKmsCrtc *cogl_crtc;
+
+      crtc->logical_monitor = NULL;
+
+      if (crtc->is_dirty)
+        {
+          crtc->is_dirty = FALSE;
+          continue;
+        }
+
+      cogl_crtc = g_slice_new0 (CoglKmsCrtc);
+      g_ptr_array_add (cogl_crtcs, cogl_crtc);
+
+      cogl_crtc->id = crtc->crtc_id;
+      cogl_crtc->x = 0;
+      cogl_crtc->y = 0;
+      cogl_crtc->count = 0;
+      memset (&cogl_crtc->mode, 0, sizeof (drmModeModeInfo));
+      cogl_crtc->connectors = NULL;
+      cogl_crtc->count = 0;
+
+      crtc->rect.x = 0;
+      crtc->rect.y = 0;
+      crtc->rect.width = 0;
+      crtc->rect.height = 0;
+      crtc->current_mode = NULL;
+    }
+
+  backend = clutter_get_default_backend ();
+  cogl_context = clutter_backend_get_cogl_context (backend);
+  cogl_display = cogl_context_get_display (cogl_context);
+
+  error = NULL;
+  ok = cogl_kms_display_set_layout (cogl_display, screen_width, screen_height,
+                                    (CoglKmsCrtc**)cogl_crtcs->pdata, cogl_crtcs->len, &error);
+  g_ptr_array_unref (cogl_crtcs);
+
+  if (!ok)
+    {
+      meta_warning ("Applying display configuration failed: %s\n", error->message);
+      g_error_free (error);
+      return;
+    }
+
+  for (i = 0; i < n_outputs; i++)
+    {
+      MetaOutputInfo *output_info = outputs[i];
+      MetaOutput *output = output_info->output;
+
+      output->is_primary = output_info->is_primary;
+      output->is_presentation = output_info->is_presentation;
+    }
+
+  /* Disable outputs not mentioned in the list */
+  for (i = 0; i < manager->n_outputs; i++)
+    {
+      MetaOutput *output = &manager->outputs[i];
+
+      if (output->is_dirty)
+        {
+          output->is_dirty = FALSE;
+          continue;
+        }
+
+      output->crtc = NULL;
+      output->is_primary = FALSE;
+    }
+
+  manager->screen_width = screen_width;
+  manager->screen_height = screen_height;
+
+  meta_monitor_manager_rebuild_derived (manager);
+}
+
+static void
+meta_monitor_manager_kms_get_crtc_gamma (MetaMonitorManager  *manager,
+                                         MetaCRTC            *crtc,
+                                         gsize               *size,
+                                         unsigned short     **red,
+                                         unsigned short     **green,
+                                         unsigned short     **blue)
+{
+  MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
+  drmModeCrtc *kms_crtc;
+
+  kms_crtc = drmModeGetCrtc (manager_kms->fd, crtc->crtc_id);
+
+  *size = kms_crtc->gamma_size;
+  *red = g_new (unsigned short, *size);
+  *green = g_new (unsigned short, *size);
+  *blue = g_new (unsigned short, *size);
+
+  drmModeCrtcGetGamma (manager_kms->fd, crtc->crtc_id, *size, *red, *green, *blue);
+
+  drmModeFreeCrtc (kms_crtc);
+}
+
+static void
+meta_monitor_manager_kms_set_crtc_gamma (MetaMonitorManager *manager,
+                                         MetaCRTC           *crtc,
+                                         gsize               size,
+                                         unsigned short     *red,
+                                         unsigned short     *green,
+                                         unsigned short     *blue)
+{
+  MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (manager);
+
+  drmModeCrtcSetGamma (manager_kms->fd, crtc->crtc_id, size, red, green, blue);
+}
+
+static void
+meta_monitor_manager_kms_init (MetaMonitorManagerKms *manager_kms)
+{
+  ClutterBackend *backend;
+  CoglContext *cogl_context;
+  CoglDisplay *cogl_display;
+  CoglRenderer *cogl_renderer;
+
+  backend = clutter_get_default_backend ();
+  cogl_context = clutter_backend_get_cogl_context (backend);
+  cogl_display = cogl_context_get_display (cogl_context);
+  cogl_renderer = cogl_display_get_renderer (cogl_display);
+
+  manager_kms->fd = cogl_kms_renderer_get_kms_fd (cogl_renderer);
+}
+
+static void
+meta_monitor_manager_kms_finalize (GObject *object)
+{
+  MetaMonitorManagerKms *manager_kms = META_MONITOR_MANAGER_KMS (object);
+
+  free_resources (manager_kms);
+
+  G_OBJECT_CLASS (meta_monitor_manager_kms_parent_class)->finalize (object);
+}
+
+static void
+meta_monitor_manager_kms_class_init (MetaMonitorManagerKmsClass *klass)
+{
+  MetaMonitorManagerClass *manager_class = META_MONITOR_MANAGER_CLASS (klass);
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = meta_monitor_manager_kms_finalize;
+
+  manager_class->read_current = meta_monitor_manager_kms_read_current;
+  manager_class->read_edid = meta_monitor_manager_kms_read_edid;
+  manager_class->apply_configuration = meta_monitor_manager_kms_apply_configuration;
+  manager_class->set_power_save_mode = meta_monitor_manager_kms_set_power_save_mode;
+  manager_class->get_crtc_gamma = meta_monitor_manager_kms_get_crtc_gamma;
+  manager_class->set_crtc_gamma = meta_monitor_manager_kms_set_crtc_gamma;
+}
+

src/core/monitor-private.h

@@ -42,9 +42,7 @@
 #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"
@@ -54,19 +52,6 @@ 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;
@@ -115,6 +100,9 @@ struct _MetaOutput
   gboolean is_primary;
   gboolean is_presentation;
 
+  gpointer driver_private;
+  GDestroyNotify driver_notify;
+
   /* get a new preferred mode on hotplug events, to handle dynamic guest resizing */
   gboolean hotplug_mode_update;
 };
@@ -134,16 +122,23 @@ struct _MetaCRTC
 
   /* Used when changing configuration */
   gboolean is_dirty;
+
+  /* Updated by MetaCursorTracker */
+  gboolean has_hw_cursor;
 };
 
 struct _MetaMonitorMode
 {
   /* The low-level ID of this mode, used to apply back configuration */
   glong mode_id;
+  char *name;
 
   int width;
   int height;
   float refresh_rate;
+
+  gpointer driver_private;
+  GDestroyNotify driver_notify;
 };
 
 /**
@@ -352,6 +347,18 @@ typedef struct _MetaMonitorManagerXrandr         MetaMonitorManagerXrandr;
 
 GType meta_monitor_manager_xrandr_get_type (void);
 
+#define META_TYPE_MONITOR_MANAGER_KMS            (meta_monitor_manager_kms_get_type ())
+#define META_MONITOR_MANAGER_KMS(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_MONITOR_MANAGER_KMS, MetaMonitorManagerKms))
+#define META_MONITOR_MANAGER_KMS_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_MONITOR_MANAGER_KMS, MetaMonitorManagerKmsClass))
+#define META_IS_MONITOR_MANAGER_KMS(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_MONITOR_MANAGER_KMS))
+#define META_IS_MONITOR_MANAGER_KMS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_MONITOR_MANAGER_KMS))
+#define META_MONITOR_MANAGER_KMS_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_MONITOR_MANAGER_KMS, MetaMonitorManagerKmsClass))
+
+typedef struct _MetaMonitorManagerKmsClass    MetaMonitorManagerKmsClass;
+typedef struct _MetaMonitorManagerKms         MetaMonitorManagerKms;
+
+GType meta_monitor_manager_kms_get_type (void);
+
 #define META_TYPE_MONITOR_CONFIG            (meta_monitor_config_get_type ())
 #define META_MONITOR_CONFIG(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_MONITOR_CONFIG, MetaMonitorConfig))
 #define META_MONITOR_CONFIG_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_MONITOR_CONFIG, MetaMonitorConfigClass))
@@ -384,6 +391,8 @@ void               meta_output_info_free (MetaOutputInfo *info);
 
 void               meta_monitor_manager_free_output_array (MetaOutput *old_outputs,
                                                            int         n_old_outputs);
+void               meta_monitor_manager_free_mode_array (MetaMonitorMode *old_modes,
+                                                         int              n_old_modes);
 gboolean           meta_monitor_manager_has_hotplug_mode_update (MetaMonitorManager *manager);
 
 /* Returns true if transform causes width and height to be inverted

src/core/monitor-xrandr.c

@@ -185,7 +185,7 @@ output_get_backlight_xrandr (MetaMonitorManagerXrandr *manager_xrandr,
 
   XRRGetOutputProperty (manager_xrandr->xdisplay,
                         (XID)output->output_id,
-                        display->atom_Backlight,
+                        display->atom_BACKLIGHT,
                         0, G_MAXLONG, False, False, XA_INTEGER,
                         &actual_type, &actual_format,
                         &nitems, &bytes_after, &buffer);
@@ -210,7 +210,7 @@ output_get_backlight_limits_xrandr (MetaMonitorManagerXrandr *manager_xrandr,
   meta_error_trap_push (display);
   info = XRRQueryOutputProperty (manager_xrandr->xdisplay,
                                  (XID)output->output_id,
-                                 display->atom_Backlight);
+                                 display->atom_BACKLIGHT);
   meta_error_trap_pop (display);
 
   if (info == NULL)
@@ -676,13 +676,11 @@ output_set_presentation_xrandr (MetaMonitorManagerXrandr *manager_xrandr,
   MetaDisplay *display = meta_get_display ();
   int value = presentation;
 
-  meta_error_trap_push (display);
   XRRChangeOutputProperty (manager_xrandr->xdisplay,
                            (XID)output->output_id,
                            display->atom__MUTTER_PRESENTATION_OUTPUT,
                            XA_CARDINAL, 32, PropModeReplace,
                            (unsigned char*) &value, 1);
-  meta_error_trap_pop (display);
 }
 
 static void
@@ -948,7 +946,7 @@ meta_monitor_manager_xrandr_change_backlight (MetaMonitorManager *manager,
   meta_error_trap_push (display);
   XRRChangeOutputProperty (manager_xrandr->xdisplay,
                            (XID)output->output_id,
-                           display->atom_Backlight,
+                           display->atom_BACKLIGHT,
                            XA_INTEGER, 32, PropModeReplace,
                            (unsigned char *) &hw_value, 1);
   meta_error_trap_pop (display);
@@ -1017,7 +1015,7 @@ meta_monitor_manager_xrandr_handle_xevent (MetaMonitorManager *manager,
   MetaOutput *old_outputs;
   MetaCRTC *old_crtcs;
   MetaMonitorMode *old_modes;
-  int n_old_outputs;
+  unsigned int n_old_outputs, n_old_modes;
   gboolean new_config;
 
   if ((event->type - manager_xrandr->rr_event_base) != RRScreenChangeNotify)
@@ -1029,6 +1027,7 @@ meta_monitor_manager_xrandr_handle_xevent (MetaMonitorManager *manager,
   old_outputs = manager->outputs;
   n_old_outputs = manager->n_outputs;
   old_modes = manager->modes;
+  n_old_modes = manager->n_modes;
   old_crtcs = manager->crtcs;
 
   manager->serial++;
@@ -1068,7 +1067,7 @@ meta_monitor_manager_xrandr_handle_xevent (MetaMonitorManager *manager,
     }
 
   meta_monitor_manager_free_output_array (old_outputs, n_old_outputs);
-  g_free (old_modes);
+  meta_monitor_manager_free_mode_array (old_modes, n_old_modes);
   g_free (old_crtcs);
 
   return TRUE;

src/core/monitor.c

@@ -62,59 +62,23 @@ static void initialize_dbus_interface (MetaMonitorManager *manager);
 static void
 read_current_dummy (MetaMonitorManager *manager)
 {
-  /* The dummy monitor config has:
-     - one enabled output, LVDS, primary, at 0x0 and 1024x768
-     - one free CRTC
-     - two disabled outputs
-     - three modes, 1024x768, 800x600 and 640x480
-     - no clones are possible (use different CRTCs)
-
-     Low-level IDs should be assigned sequentially, to
-     mimick what XRandR and KMS do
-  */
-
   manager->max_screen_width = 65535;
   manager->max_screen_height = 65535;
   manager->screen_width = 1024;
   manager->screen_height = 768;
 
-  manager->modes = g_new0 (MetaMonitorMode, 6);
-  manager->n_modes = 6;
+  manager->modes = g_new0 (MetaMonitorMode, 1);
+  manager->n_modes = 1;
 
-  manager->modes[0].mode_id = 1;
+  manager->modes[0].mode_id = 0;
   manager->modes[0].width = 1024;
   manager->modes[0].height = 768;
   manager->modes[0].refresh_rate = 60.0;
 
-  manager->modes[1].mode_id = 2;
-  manager->modes[1].width = 800;
-  manager->modes[1].height = 600;
-  manager->modes[1].refresh_rate = 60.0;
+  manager->crtcs = g_new0 (MetaCRTC, 1);
+  manager->n_crtcs = 1;
 
-  manager->modes[2].mode_id = 3;
-  manager->modes[2].width = 640;
-  manager->modes[2].height = 480;
-  manager->modes[2].refresh_rate = 60.0;
-
-  manager->modes[3].mode_id = 4;
-  manager->modes[3].width = 1920;
-  manager->modes[3].height = 1080;
-  manager->modes[3].refresh_rate = 60.0;
-
-  manager->modes[4].mode_id = 5;
-  manager->modes[4].width = 1920;
-  manager->modes[4].height = 1080;
-  manager->modes[4].refresh_rate = 55.0;
-
-  manager->modes[5].mode_id = 6;
-  manager->modes[5].width = 1600;
-  manager->modes[5].height = 900;
-  manager->modes[5].refresh_rate = 60.0;
-
-  manager->crtcs = g_new0 (MetaCRTC, 3);
-  manager->n_crtcs = 3;
-
-  manager->crtcs[0].crtc_id = 4;
+  manager->crtcs[0].crtc_id = 1;
   manager->crtcs[0].rect.x = 0;
   manager->crtcs[0].rect.y = 0;
   manager->crtcs[0].rect.width = manager->modes[0].width;
@@ -125,111 +89,30 @@ read_current_dummy (MetaMonitorManager *manager)
   manager->crtcs[0].is_dirty = FALSE;
   manager->crtcs[0].logical_monitor = NULL;
 
-  manager->crtcs[1].crtc_id = 5;
-  manager->crtcs[1].rect.x = 0;
-  manager->crtcs[1].rect.y = 0;
-  manager->crtcs[1].rect.width = 0;
-  manager->crtcs[1].rect.height = 0;
-  manager->crtcs[1].current_mode = NULL;
-  manager->crtcs[1].transform = WL_OUTPUT_TRANSFORM_NORMAL;
-  manager->crtcs[1].all_transforms = ALL_WL_TRANSFORMS;
-  manager->crtcs[1].is_dirty = FALSE;
-  manager->crtcs[1].logical_monitor = NULL;
+  manager->outputs = g_new0 (MetaOutput, 1);
+  manager->n_outputs = 1;
 
-  manager->crtcs[2].crtc_id = 5;
-  manager->crtcs[2].rect.x = 0;
-  manager->crtcs[2].rect.y = 0;
-  manager->crtcs[2].rect.width = 0;
-  manager->crtcs[2].rect.height = 0;
-  manager->crtcs[2].current_mode = NULL;
-  manager->crtcs[2].transform = WL_OUTPUT_TRANSFORM_NORMAL;
-  manager->crtcs[2].all_transforms = ALL_WL_TRANSFORMS;
-  manager->crtcs[2].is_dirty = FALSE;
-  manager->crtcs[2].logical_monitor = NULL;
-
-  manager->outputs = g_new0 (MetaOutput, 3);
-  manager->n_outputs = 3;
-
-  manager->outputs[0].crtc = NULL;
-  manager->outputs[0].output_id = 6;
-  manager->outputs[0].name = g_strdup ("HDMI");
+  manager->outputs[0].crtc = &manager->crtcs[0];
+  manager->outputs[0].output_id = 1;
+  manager->outputs[0].name = g_strdup ("LVDS");
   manager->outputs[0].vendor = g_strdup ("MetaProducts Inc.");
   manager->outputs[0].product = g_strdup ("unknown");
-  manager->outputs[0].serial = g_strdup ("0xC0F01A");
-  manager->outputs[0].width_mm = 510;
-  manager->outputs[0].height_mm = 287;
+  manager->outputs[0].serial = g_strdup ("0xC0FFEE");
+  manager->outputs[0].width_mm = 222;
+  manager->outputs[0].height_mm = 125;
   manager->outputs[0].subpixel_order = COGL_SUBPIXEL_ORDER_UNKNOWN;
-  manager->outputs[0].preferred_mode = &manager->modes[3];
-  manager->outputs[0].n_modes = 5;
-  manager->outputs[0].modes = g_new0 (MetaMonitorMode *, 5);
+  manager->outputs[0].preferred_mode = &manager->modes[0];
+  manager->outputs[0].n_modes = 1;
+  manager->outputs[0].modes = g_new0 (MetaMonitorMode *, 1);
   manager->outputs[0].modes[0] = &manager->modes[0];
-  manager->outputs[0].modes[1] = &manager->modes[1];
-  manager->outputs[0].modes[2] = &manager->modes[2];
-  manager->outputs[0].modes[3] = &manager->modes[3];
-  manager->outputs[0].modes[4] = &manager->modes[4];
-  manager->outputs[0].n_possible_crtcs = 3;
-  manager->outputs[0].possible_crtcs = g_new0 (MetaCRTC *, 3);
+  manager->outputs[0].n_possible_crtcs = 1;
+  manager->outputs[0].possible_crtcs = g_new0 (MetaCRTC *, 1);
   manager->outputs[0].possible_crtcs[0] = &manager->crtcs[0];
-  manager->outputs[0].possible_crtcs[1] = &manager->crtcs[1];
-  manager->outputs[0].possible_crtcs[2] = &manager->crtcs[2];
   manager->outputs[0].n_possible_clones = 0;
   manager->outputs[0].possible_clones = g_new0 (MetaOutput *, 0);
   manager->outputs[0].backlight = -1;
   manager->outputs[0].backlight_min = 0;
   manager->outputs[0].backlight_max = 0;
-
-  manager->outputs[1].crtc = &manager->crtcs[0];
-  manager->outputs[1].output_id = 7;
-  manager->outputs[1].name = g_strdup ("LVDS");
-  manager->outputs[1].vendor = g_strdup ("MetaProducts Inc.");
-  manager->outputs[1].product = g_strdup ("unknown");
-  manager->outputs[1].serial = g_strdup ("0xC0FFEE");
-  manager->outputs[1].width_mm = 222;
-  manager->outputs[1].height_mm = 125;
-  manager->outputs[1].subpixel_order = COGL_SUBPIXEL_ORDER_UNKNOWN;
-  manager->outputs[1].preferred_mode = &manager->modes[5];
-  manager->outputs[1].n_modes = 4;
-  manager->outputs[1].modes = g_new0 (MetaMonitorMode *, 4);
-  manager->outputs[1].modes[0] = &manager->modes[0];
-  manager->outputs[1].modes[1] = &manager->modes[1];
-  manager->outputs[1].modes[2] = &manager->modes[2];
-  manager->outputs[1].modes[3] = &manager->modes[5];
-  manager->outputs[1].n_possible_crtcs = 3;
-  manager->outputs[1].possible_crtcs = g_new0 (MetaCRTC *, 3);
-  manager->outputs[1].possible_crtcs[0] = &manager->crtcs[0];
-  manager->outputs[1].possible_crtcs[1] = &manager->crtcs[1];
-  manager->outputs[1].possible_crtcs[2] = &manager->crtcs[2];
-  manager->outputs[1].n_possible_clones = 0;
-  manager->outputs[1].possible_clones = g_new0 (MetaOutput *, 0);
-  manager->outputs[1].backlight = -1;
-  manager->outputs[1].backlight_min = 0;
-  manager->outputs[1].backlight_max = 0;
-
-  manager->outputs[2].crtc = NULL;
-  manager->outputs[2].output_id = 8;
-  manager->outputs[2].name = g_strdup ("VGA");
-  manager->outputs[2].vendor = g_strdup ("MetaProducts Inc.");
-  manager->outputs[2].product = g_strdup ("unknown");
-  manager->outputs[2].serial = g_strdup ("0xC4FE");
-  manager->outputs[2].width_mm = 309;
-  manager->outputs[2].height_mm = 174;
-  manager->outputs[2].subpixel_order = COGL_SUBPIXEL_ORDER_UNKNOWN;
-  manager->outputs[2].preferred_mode = &manager->modes[0];
-  manager->outputs[2].n_modes = 3;
-  manager->outputs[2].modes = g_new0 (MetaMonitorMode *, 3);
-  manager->outputs[2].modes[0] = &manager->modes[0];
-  manager->outputs[2].modes[1] = &manager->modes[1];
-  manager->outputs[2].modes[2] = &manager->modes[2];
-  manager->outputs[2].n_possible_crtcs = 3;
-  manager->outputs[2].possible_crtcs = g_new0 (MetaCRTC *, 3);
-  manager->outputs[2].possible_crtcs[0] = &manager->crtcs[0];
-  manager->outputs[2].possible_crtcs[1] = &manager->crtcs[1];
-  manager->outputs[2].possible_crtcs[2] = &manager->crtcs[2];
-  manager->outputs[2].n_possible_clones = 0;
-  manager->outputs[2].possible_clones = g_new0 (MetaOutput *, 0);
-  manager->outputs[2].backlight = -1;
-  manager->outputs[2].backlight_min = 0;
-  manager->outputs[2].backlight_max = 0;
 }
 
 static void
@@ -469,6 +352,40 @@ make_logical_config (MetaMonitorManager *manager)
   manager->monitor_infos = (void*)g_array_free (monitor_infos, FALSE);
 }
 
+static GType
+get_default_backend (void)
+{
+#if defined(CLUTTER_WINDOWING_EGL)
+  if (clutter_check_windowing_backend (CLUTTER_WINDOWING_EGL))
+    return META_TYPE_MONITOR_MANAGER_KMS;
+#endif
+
+#if defined(CLUTTER_WINDOWING_X11)
+  if (clutter_check_windowing_backend (CLUTTER_WINDOWING_X11))
+    {
+      /* If we're a Wayland compositor using the X11 backend,
+       * we're a nested configuration, so return the dummy
+       * monitor setup. */
+      if (meta_is_wayland_compositor ())
+        return META_TYPE_MONITOR_MANAGER;
+      else
+        return META_TYPE_MONITOR_MANAGER_XRANDR;
+    }
+#endif
+
+#if defined(CLUTTER_WINDOWING_WAYLAND)
+  if (clutter_check_windowing_backend (CLUTTER_WINDOWING_WAYLAND))
+    {
+      /* Use the dummy implementation on Wayland for now.
+       * In the future, we should support wl_fullscreen_output
+       * which will have CRTC management in the protocol. */
+      return META_TYPE_MONITOR_MANAGER;
+    }
+#endif
+
+  g_assert_not_reached ();
+}
+
 static MetaMonitorManager *
 meta_monitor_manager_new (void)
 {
@@ -478,7 +395,7 @@ meta_monitor_manager_new (void)
   env = g_getenv ("META_DEBUG_MULTIMONITOR");
 
   if (env == NULL)
-    type = META_TYPE_MONITOR_MANAGER_XRANDR;
+    type = get_default_backend ();
   else if (strcmp (env, "xrandr") == 0)
     type = META_TYPE_MONITOR_MANAGER_XRANDR;
   else
@@ -513,17 +430,18 @@ meta_monitor_manager_constructed (GObject *object)
       MetaOutput *old_outputs;
       MetaCRTC *old_crtcs;
       MetaMonitorMode *old_modes;
-      int n_old_outputs;
+      unsigned int n_old_outputs, n_old_modes;
 
       old_outputs = manager->outputs;
       n_old_outputs = manager->n_outputs;
       old_modes = manager->modes;
+      n_old_modes = manager->n_modes;
       old_crtcs = manager->crtcs;
 
       read_current_config (manager);
 
       meta_monitor_manager_free_output_array (old_outputs, n_old_outputs);
-      g_free (old_modes);
+      meta_monitor_manager_free_mode_array (old_modes, n_old_modes);
       g_free (old_crtcs);
     }
 
@@ -565,19 +483,39 @@ meta_monitor_manager_free_output_array (MetaOutput *old_outputs,
       g_free (old_outputs[i].modes);
       g_free (old_outputs[i].possible_crtcs);
       g_free (old_outputs[i].possible_clones);
+
+      if (old_outputs[i].driver_notify)
+        old_outputs[i].driver_notify (&old_outputs[i]);
     }
 
   g_free (old_outputs);
 }
 
+void
+meta_monitor_manager_free_mode_array (MetaMonitorMode *old_modes,
+                                      int              n_old_modes)
+{
+  int i;
+
+  for (i = 0; i < n_old_modes; i++)
+    {
+      g_free (old_modes[i].name);
+
+      if (old_modes[i].driver_notify)
+        old_modes[i].driver_notify (&old_modes[i]);
+    }
+
+  g_free (old_modes);
+}
+
 static void
 meta_monitor_manager_finalize (GObject *object)
 {
   MetaMonitorManager *manager = META_MONITOR_MANAGER (object);
 
   meta_monitor_manager_free_output_array (manager->outputs, manager->n_outputs);
+  meta_monitor_manager_free_mode_array (manager->modes, manager->n_modes);
   g_free (manager->monitor_infos);
-  g_free (manager->modes);
   g_free (manager->crtcs);
 
   G_OBJECT_CLASS (meta_monitor_manager_parent_class)->finalize (object);
@@ -770,13 +708,13 @@ meta_monitor_manager_handle_get_resources (MetaDBusDisplayConfig *skeleton,
 
       g_variant_builder_add (&crtc_builder, "(uxiiiiiuaua{sv})",
                              i, /* ID */
-                             (gint64)crtc->crtc_id,
+                             crtc->crtc_id,
                              (int)crtc->rect.x,
                              (int)crtc->rect.y,
                              (int)crtc->rect.width,
                              (int)crtc->rect.height,
                              (int)(crtc->current_mode ? crtc->current_mode - manager->modes : -1),
-                             (guint32)crtc->transform,
+                             crtc->transform,
                              &transforms,
                              NULL /* properties */);
     }
@@ -847,7 +785,7 @@ meta_monitor_manager_handle_get_resources (MetaDBusDisplayConfig *skeleton,
 
       g_variant_builder_add (&output_builder, "(uxiausauaua{sv})",
                              i, /* ID */
-                             (gint64)output->output_id,
+                             output->output_id,
                              (int)(output->crtc ? output->crtc - manager->crtcs : -1),
                              &crtcs,
                              output->name,
@@ -862,9 +800,9 @@ meta_monitor_manager_handle_get_resources (MetaDBusDisplayConfig *skeleton,
 
       g_variant_builder_add (&mode_builder, "(uxuud)",
                              i, /* ID */
-                             (gint64)mode->mode_id,
-                             (guint32)mode->width,
-                             (guint32)mode->height,
+                             mode->mode_id,
+                             mode->width,
+                             mode->height,
                              (double)mode->refresh_rate);
     }
 
@@ -1453,12 +1391,21 @@ meta_monitor_manager_get_resources (MetaMonitorManager  *manager,
                                     MetaOutput         **outputs,
                                     unsigned int        *n_outputs)
 {
-  *modes = manager->modes;
-  *n_modes = manager->n_modes;
-  *crtcs = manager->crtcs;
-  *n_crtcs = manager->n_crtcs;
-  *outputs = manager->outputs;
-  *n_outputs = manager->n_outputs;
+  if (modes)
+    {
+      *modes = manager->modes;
+      *n_modes = manager->n_modes;
+    }
+  if (crtcs)
+    {
+      *crtcs = manager->crtcs;
+      *n_crtcs = manager->n_crtcs;
+    }
+  if (outputs)
+    {
+      *outputs = manager->outputs;
+      *n_outputs = manager->n_outputs;
+    }
 }
 
 int

src/core/mutter.c

@@ -75,7 +75,6 @@ main (int argc, char **argv)
       g_printerr ("mutter: %s\n", error->message);
       exit (1);
     }
-  g_option_context_free (ctx);
 
   if (plugin)
     meta_plugin_manager_load (plugin);

src/core/place.c

@@ -344,7 +344,7 @@ avoid_being_obscured_as_second_modal_dialog (MetaWindow *window,
   /* denied_focus_and_not_transient is only set when focus_window != NULL */
 
   if (window->denied_focus_and_not_transient &&
-      window->wm_state_modal && /* FIXME: Maybe do this for all transients? */
+      window->type == META_WINDOW_MODAL_DIALOG &&
       meta_window_same_application (window, focus_window) &&
       window_overlaps_focus_window (window))
     {
@@ -610,7 +610,7 @@ meta_window_place (MetaWindow        *window,
   meta_topic (META_DEBUG_PLACEMENT, "Placing window %s\n", window->desc);
 
   windows = NULL;
-  
+
   switch (window->type)
     {
       /* Run placement algorithm on these. */
@@ -638,7 +638,7 @@ meta_window_place (MetaWindow        *window,
     case META_WINDOW_OVERRIDE_OTHER:
       goto done_no_constraints;
     }
-  
+
   if (meta_prefs_get_disable_workarounds ())
     {
       switch (window->type)
@@ -699,18 +699,11 @@ meta_window_place (MetaWindow        *window,
           goto done_no_constraints;
         }
     }
-  
-  if ((window->type == META_WINDOW_DIALOG ||
-       window->type == META_WINDOW_MODAL_DIALOG) &&
-      window->xtransient_for != None)
-    {
-      /* Center horizontally, at top of parent vertically */
 
-      MetaWindow *parent;
-          
-      parent =
-        meta_display_lookup_x_window (window->display,
-                                      window->xtransient_for);
+  if (window->type == META_WINDOW_DIALOG ||
+      window->type == META_WINDOW_MODAL_DIALOG)
+    {
+      MetaWindow *parent = meta_window_get_transient_for (window);
 
       if (parent)
         {

src/core/prefs.c

@@ -1187,8 +1187,8 @@ maybe_give_disable_workarounds_warning (void)
     {
       first_disable = FALSE;
 
-      meta_warning (_("Workarounds for broken applications disabled. "
-                      "Some applications may not behave properly.\n"));
+      meta_warning ("Workarounds for broken applications disabled. "
+                    "Some applications may not behave properly.\n");
     }
 }
 
@@ -1262,8 +1262,8 @@ titlebar_handler (GVariant *value,
 
   if (desc == NULL)
     {
-      meta_warning (_("Could not parse font description "
-                      "\"%s\" from GSettings key %s\n"),
+      meta_warning ("Could not parse font description "
+                    "\"%s\" from GSettings key %s\n",
                     string_value ? string_value : "(null)",
                     KEY_TITLEBAR_FONT);
       return FALSE;
@@ -1328,8 +1328,8 @@ mouse_button_mods_handler (GVariant *value,
       meta_topic (META_DEBUG_KEYBINDINGS,
                   "Failed to parse new GSettings value\n");
           
-      meta_warning (_("\"%s\" found in configuration database is "
-                      "not a valid value for mouse button modifier\n"),
+      meta_warning ("\"%s\" found in configuration database is "
+                    "not a valid value for mouse button modifier\n",
                     string_value);
 
       return FALSE;
@@ -1891,7 +1891,7 @@ update_binding (MetaKeyPref *binding,
         {
           meta_topic (META_DEBUG_KEYBINDINGS,
                       "Failed to parse new GSettings value\n");
-          meta_warning (_("\"%s\" found in configuration database is not a valid value for keybinding \"%s\"\n"),
+          meta_warning ("\"%s\" found in configuration database is not a valid value for keybinding \"%s\"\n",
                         strokes[i], binding->name);
 
           /* Value is kept and will thus be removed next time we save the key.

src/core/screen-private.h

@@ -223,12 +223,14 @@ void     meta_screen_workspace_switched (MetaScreen         *screen,
 
 void meta_screen_set_active_workspace_hint (MetaScreen *screen);
 
+void meta_screen_create_guard_window (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);
 
-gboolean meta_screen_handle_xevent (MetaScreen *screen,
-                                    XEvent     *xevent);
-
 #endif

src/core/screen.c

@@ -39,7 +39,6 @@
 #include "workspace-private.h"
 #include "keybindings-private.h"
 #include "stack.h"
-#include "xprops.h"
 #include <meta/compositor.h>
 #include "mutter-enum-types.h"
 #include "core.h"
@@ -53,6 +52,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include "x11/xprops.h"
+
 static char* get_screen_name (MetaDisplay *display,
                               int          number);
 
@@ -454,6 +455,7 @@ create_guard_window (Display *xdisplay, MetaScreen *screen)
   XSetWindowAttributes attributes;
   Window guard_window;
   gulong create_serial;
+  MetaStackWindow stack_window;
 
   attributes.event_mask = NoEventMask;
   attributes.override_redirect = True;
@@ -475,9 +477,6 @@ create_guard_window (Display *xdisplay, MetaScreen *screen)
 		   CWEventMask|CWOverrideRedirect,
 		   &attributes);
 
-  /* https://bugzilla.gnome.org/show_bug.cgi?id=710346 */
-  XStoreName (xdisplay, guard_window, "mutter guard window");
-
   {
     unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
     XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
@@ -488,12 +487,14 @@ create_guard_window (Display *xdisplay, MetaScreen *screen)
     XISelectEvents (xdisplay, guard_window, &mask, 1);
   }
 
+  stack_window.any.type = META_WINDOW_CLIENT_TYPE_X11;
+  stack_window.x11.xwindow = guard_window;
   meta_stack_tracker_record_add (screen->stack_tracker,
-                                 guard_window,
+                                 &stack_window,
                                  create_serial);
 
   meta_stack_tracker_record_lower (screen->stack_tracker,
-                                   guard_window,
+                                   &stack_window,
                                    XNextRequest (xdisplay));
   XLowerWindow (xdisplay, guard_window);
   XMapWindow (xdisplay, guard_window);
@@ -579,7 +580,7 @@ meta_screen_new (MetaDisplay *display,
 
   if (XGetSelectionOwner (xdisplay, wm_sn_atom) != new_wm_sn_owner)
     {
-      meta_warning (_("Could not acquire window manager selection on screen %d display \"%s\"\n"),
+      meta_warning ("Could not acquire window manager selection on screen %d display \"%s\"\n",
                     number, display->name);
 
       XDestroyWindow (xdisplay, new_wm_sn_owner);
@@ -674,8 +675,9 @@ meta_screen_new (MetaDisplay *display,
   screen->xscreen = ScreenOfDisplay (xdisplay, number);
   screen->xroot = xroot;
   screen->rect.x = screen->rect.y = 0;
-  
-  meta_monitor_manager_initialize ();
+
+  if (!meta_is_wayland_compositor ())
+    meta_monitor_manager_initialize ();
 
   manager = meta_monitor_manager_get ();
   g_signal_connect (manager, "monitors-changed",
@@ -807,11 +809,8 @@ meta_screen_free (MetaScreen *screen,
   
   meta_display_grab (display);
 
-  if (screen->display->compositor)
-    {
-      meta_compositor_unmanage_screen (screen->display->compositor,
-				       screen);
-    }
+  meta_compositor_unmanage_screen (screen->display->compositor,
+                                   screen);
   
   meta_display_unmanage_windows_for_screen (display, screen, timestamp);
   
@@ -845,7 +844,7 @@ meta_screen_free (MetaScreen *screen,
   meta_error_trap_push_with_return (screen->display);
   XSelectInput (screen->display->xdisplay, screen->xroot, 0);
   if (meta_error_trap_pop_with_return (screen->display) != Success)
-    meta_warning (_("Could not release screen %d on display \"%s\"\n"),
+    meta_warning ("Could not release screen %d on display \"%s\"\n",
                   screen->number, screen->display->name);
 
   unset_wm_check_hint (screen);
@@ -872,27 +871,30 @@ meta_screen_free (MetaScreen *screen,
   meta_display_ungrab (display);
 }
 
+void
+meta_screen_create_guard_window (MetaScreen *screen)
+{
+  if (screen->guard_window == None)
+    screen->guard_window = create_guard_window (screen->display->xdisplay, screen);
+}
+
 void
 meta_screen_manage_all_windows (MetaScreen *screen)
 {
-  Window *_children;
-  Window *children;
+  MetaStackWindow *_children;
+  MetaStackWindow *children;
   int n_children, i;
 
-  if (screen->guard_window == None)
-    screen->guard_window = create_guard_window (screen->display->xdisplay,
-                                                screen);
-
   meta_stack_freeze (screen->stack);
   meta_stack_tracker_get_stack (screen->stack_tracker, &_children, &n_children);
 
   /* Copy the stack as it will be modified as part of the loop */
-  children = g_memdup (_children, sizeof (Window) * n_children);
+  children = g_memdup (_children, sizeof (MetaStackWindow) * n_children);
 
   for (i = 0; i < n_children; ++i)
     {
-      meta_window_new (screen->display, children[i], TRUE,
-                       META_COMP_EFFECT_NONE);
+      meta_window_x11_new (screen->display, children[i].x11.xwindow, TRUE,
+                           META_COMP_EFFECT_NONE);
     }
 
   g_free (children);
@@ -1509,38 +1511,19 @@ meta_screen_get_mouse_window (MetaScreen  *screen,
                               MetaWindow  *not_this_one)
 {
   MetaWindow *window;
-  Window root_return, child_return;
-  double root_x_return, root_y_return;
-  double win_x_return, win_y_return;
-  XIButtonState buttons;
-  XIModifierState mods;
-  XIGroupState group;
+  int x, y;
 
   if (not_this_one)
     meta_topic (META_DEBUG_FOCUS,
                 "Focusing mouse window excluding %s\n", not_this_one->desc);
 
-  meta_error_trap_push (screen->display);
-  XIQueryPointer (screen->display->xdisplay,
-                  META_VIRTUAL_CORE_POINTER_ID,
-                  screen->xroot,
-                  &root_return,
-                  &child_return,
-                  &root_x_return,
-                  &root_y_return,
-                  &win_x_return,
-                  &win_y_return,
-                  &buttons,
-                  &mods,
-                  &group);
-  meta_error_trap_pop (screen->display);
-  free (buttons.mask);
+  meta_cursor_tracker_get_pointer (screen->cursor_tracker,
+                                   &x, &y, NULL);
 
   window = meta_stack_get_default_focus_window_at_point (screen->stack,
                                                          screen->active_workspace,
                                                          not_this_one,
-                                                         root_x_return,
-                                                         root_y_return);
+                                                         x, y);
 
   return window;
 }
@@ -1822,28 +1805,11 @@ meta_screen_get_current_monitor (MetaScreen *screen)
   
   if (screen->display->monitor_cache_invalidated)
     {
-      Window root_return, child_return;
-      double win_x_return, win_y_return;
-      double root_x_return, root_y_return;
-      XIButtonState buttons;
-      XIModifierState mods;
-      XIGroupState group;
+      int x, y;
 
-      XIQueryPointer (screen->display->xdisplay,
-                      META_VIRTUAL_CORE_POINTER_ID,
-                      screen->xroot,
-                      &root_return,
-                      &child_return,
-                      &root_x_return,
-                      &root_y_return,
-                      &win_x_return,
-                      &win_y_return,
-                      &buttons,
-                      &mods,
-                      &group);
-      free (buttons.mask);
-
-      meta_screen_get_current_monitor_for_pos (screen, root_x_return, root_y_return);
+      meta_cursor_tracker_get_pointer (screen->cursor_tracker,
+                                       &x, &y, NULL);
+      meta_screen_get_current_monitor_for_pos (screen, x, y);
     }
 
   return screen->last_monitor_index;
@@ -2554,10 +2520,9 @@ on_monitors_changed (MetaMonitorManager *manager,
                        &changes);
     }
 
-  if (screen->display->compositor)
-    meta_compositor_sync_screen_size (screen->display->compositor,
-				      screen,
-                                      screen->rect.width, screen->rect.height);
+  meta_compositor_sync_screen_size (screen->display->compositor,
+                                    screen,
+                                    screen->rect.width, screen->rect.height);
 
   /* Queue a resize on all the windows */
   meta_screen_foreach_window (screen, meta_screen_resize_func, 0);
@@ -3373,10 +3338,6 @@ gboolean
 meta_screen_handle_xevent (MetaScreen *screen,
                            XEvent     *xevent)
 {
-  /* Go through our helpers and see if they want this event.
-     Currently, only MetaCursorTracker.
-  */
-
   if (meta_cursor_tracker_handle_xevent (screen->cursor_tracker, xevent))
     return TRUE;
 

src/core/stack-tracker.h

@@ -35,36 +35,55 @@
 #define META_STACK_TRACKER_H
 
 #include <meta/screen.h>
+#include <meta/window.h>
 
 typedef struct _MetaStackTracker MetaStackTracker;
 
+typedef union _MetaStackWindow
+{
+  struct {
+    MetaWindowClientType type;
+  } any;
+  struct {
+    MetaWindowClientType type;
+    Window xwindow;
+  } x11;
+  struct {
+    MetaWindowClientType type;
+    MetaWindow *meta_window;
+  } wayland;
+} MetaStackWindow;
+
+gboolean meta_stack_window_equal (const MetaStackWindow *a,
+                                  const MetaStackWindow *b);
+
 MetaStackTracker *meta_stack_tracker_new  (MetaScreen       *screen);
 void              meta_stack_tracker_free (MetaStackTracker *tracker);
 
 /* These functions are called when we make an X call that changes the
  * stacking order; this allows MetaStackTracker to predict stacking
  * order before it receives events back from the X server */
-void meta_stack_tracker_record_add             (MetaStackTracker *tracker,
-						Window            window,
-                                                gulong            serial);
-void meta_stack_tracker_record_remove          (MetaStackTracker *tracker,
-						Window            window,
-                                                gulong            serial);
-void meta_stack_tracker_record_restack_windows (MetaStackTracker *tracker,
-						Window           *windows,
-						int               n_windows,
-                                                gulong            serial);
-void meta_stack_tracker_record_raise_above     (MetaStackTracker *tracker,
-						Window            window,
-						Window            sibling,
-                                                gulong            serial);
-void meta_stack_tracker_record_lower_below    (MetaStackTracker *tracker,
-						Window            window,
-						Window            sibling,
-                                                gulong            serial);
-void meta_stack_tracker_record_lower           (MetaStackTracker *tracker,
-						Window            window,
-                                                gulong            serial);
+void meta_stack_tracker_record_add             (MetaStackTracker      *tracker,
+                                                const MetaStackWindow *window,
+                                                gulong                 serial);
+void meta_stack_tracker_record_remove          (MetaStackTracker      *tracker,
+                                                const MetaStackWindow *window,
+                                                gulong                 serial);
+void meta_stack_tracker_record_restack_windows (MetaStackTracker      *tracker,
+                                                const MetaStackWindow *windows,
+						int                    n_windows,
+                                                gulong                 serial);
+void meta_stack_tracker_record_raise_above     (MetaStackTracker      *tracker,
+                                                const MetaStackWindow *window,
+                                                const MetaStackWindow *sibling,
+                                                gulong                 serial);
+void meta_stack_tracker_record_lower_below    (MetaStackTracker       *tracker,
+                                               const MetaStackWindow  *window,
+                                               const MetaStackWindow  *sibling,
+                                               gulong                  serial);
+void meta_stack_tracker_record_lower           (MetaStackTracker      *tracker,
+                                                const MetaStackWindow *window,
+                                                gulong                 serial);
 
 /* These functions are used to update the stack when we get events
  * reflecting changes to the stacking order */
@@ -77,9 +96,9 @@ void meta_stack_tracker_reparent_event  (MetaStackTracker    *tracker,
 void meta_stack_tracker_configure_event (MetaStackTracker    *tracker,
 					 XConfigureEvent     *event);
 
-void meta_stack_tracker_get_stack  (MetaStackTracker  *tracker,
-                                    Window           **windows,
-                                    int               *n_windows);
+void meta_stack_tracker_get_stack  (MetaStackTracker      *tracker,
+                                    MetaStackWindow      **windows,
+                                    int                   *n_entries);
 
 void meta_stack_tracker_sync_stack       (MetaStackTracker *tracker);
 void meta_stack_tracker_queue_sync_stack (MetaStackTracker *tracker);

src/core/stack.c

@@ -36,6 +36,8 @@
 
 #include <X11/Xatom.h>
 
+#include "x11/group-private.h"
+
 #define WINDOW_HAS_TRANSIENT_TYPE(w)                    \
           (w->type == META_WINDOW_DIALOG ||             \
 	   w->type == META_WINDOW_MODAL_DIALOG ||       \
@@ -50,7 +52,7 @@
 
 #define WINDOW_IN_STACK(w) (w->stack_position >= 0)
 
-static void stack_sync_to_server (MetaStack *stack);
+static void stack_sync_to_xserver (MetaStack *stack);
 static void meta_window_set_stack_position_no_sync (MetaWindow *window,
                                                     int         position);
 static void stack_do_window_deletions (MetaStack *stack);
@@ -69,14 +71,14 @@ meta_stack_new (MetaScreen *screen)
   stack = g_new (MetaStack, 1);
 
   stack->screen = screen;
-  stack->windows = g_array_new (FALSE, FALSE, sizeof (Window));
+  stack->xwindows = g_array_new (FALSE, FALSE, sizeof (Window));
 
   stack->sorted = NULL;
   stack->added = NULL;
   stack->removed = NULL;
 
   stack->freeze_count = 0;
-  stack->last_root_children_stacked = NULL;
+  stack->last_all_root_children_stacked = NULL;
 
   stack->n_positions = 0;
 
@@ -87,17 +89,24 @@ meta_stack_new (MetaScreen *screen)
   return stack;
 }
 
+static void
+free_last_all_root_children_stacked_cache (MetaStack *stack)
+{
+  g_array_free (stack->last_all_root_children_stacked, TRUE);
+  stack->last_all_root_children_stacked = NULL;
+}
+
 void
 meta_stack_free (MetaStack *stack)
 {
-  g_array_free (stack->windows, TRUE);
+  g_array_free (stack->xwindows, TRUE);
 
   g_list_free (stack->sorted);
   g_list_free (stack->added);
   g_list_free (stack->removed);
 
-  if (stack->last_root_children_stacked)
-    g_array_free (stack->last_root_children_stacked, TRUE);
+  if (stack->last_all_root_children_stacked)
+    free_last_all_root_children_stacked_cache (stack);
   
   g_free (stack);
 }
@@ -119,7 +128,7 @@ meta_stack_add (MetaStack  *stack,
               "Window %s has stack_position initialized to %d\n",
               window->desc, window->stack_position);
   
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
   meta_stack_update_window_tile_matches (stack, window->screen->active_workspace);
 }
 
@@ -155,7 +164,7 @@ meta_stack_remove (MetaStack  *stack,
     stack->removed = g_list_prepend (stack->removed,
                                      GUINT_TO_POINTER (window->frame->xwindow));
   
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
   meta_stack_update_window_tile_matches (stack, window->screen->active_workspace);
 }
 
@@ -165,7 +174,7 @@ meta_stack_update_layer (MetaStack  *stack,
 {
   stack->need_relayer = TRUE;
   
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
   meta_stack_update_window_tile_matches (stack, window->screen->active_workspace);
 }
 
@@ -175,7 +184,7 @@ meta_stack_update_transient (MetaStack  *stack,
 {
   stack->need_constrain = TRUE;
   
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
   meta_stack_update_window_tile_matches (stack, window->screen->active_workspace);
 }
 
@@ -204,7 +213,7 @@ meta_stack_raise (MetaStack  *stack,
 
   meta_window_set_stack_position_no_sync (window, max_stack_position);
 
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
   meta_stack_update_window_tile_matches (stack, window->screen->active_workspace);
 }
 
@@ -232,7 +241,7 @@ meta_stack_lower (MetaStack  *stack,
 
   meta_window_set_stack_position_no_sync (window, min_stack_position);
   
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
   meta_stack_update_window_tile_matches (stack, window->screen->active_workspace);
 }
 
@@ -248,7 +257,7 @@ meta_stack_thaw (MetaStack *stack)
   g_return_if_fail (stack->freeze_count > 0);
   
   stack->freeze_count -= 1;
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
   meta_stack_update_window_tile_matches (stack, NULL);
 }
 
@@ -827,7 +836,7 @@ stack_do_window_deletions (MetaStack *stack)
       /* We go from the end figuring removals are more
        * likely to be recent.
        */
-      i = stack->windows->len;
+      i = stack->xwindows->len;
       while (i > 0)
         {
           --i;
@@ -838,9 +847,9 @@ stack_do_window_deletions (MetaStack *stack)
            * both the window->xwindow and window->frame->xwindow
            * in the removal list.
            */
-          if (xwindow == g_array_index (stack->windows, Window, i))
+          if (xwindow == g_array_index (stack->xwindows, Window, i))
             {
-              g_array_remove_index (stack->windows, i);
+              g_array_remove_index (stack->xwindows, i);
               goto next;
             }
         }
@@ -869,10 +878,10 @@ stack_do_window_additions (MetaStack *stack)
                   "Adding %d windows to sorted list\n",
                   n_added);
       
-      old_size = stack->windows->len;
-      g_array_set_size (stack->windows, old_size + n_added);
+      old_size = stack->xwindows->len;
+      g_array_set_size (stack->xwindows, old_size + n_added);
       
-      end = &g_array_index (stack->windows, Window, old_size);
+      end = &g_array_index (stack->xwindows, Window, old_size);
 
       /* stack->added has the most recent additions at the
        * front of the list, so we need to reverse it
@@ -1027,6 +1036,102 @@ stack_ensure_sorted (MetaStack *stack)
   stack_do_resort (stack);
 }
 
+static MetaStackWindow *
+find_top_most_managed_window (MetaScreen *screen,
+                              const MetaStackWindow *ignore)
+{
+  MetaStackTracker *stack_tracker = screen->stack_tracker;
+  MetaStackWindow *windows;
+  int n_windows;
+  int i;
+
+  meta_stack_tracker_get_stack (stack_tracker,
+                                &windows, &n_windows);
+
+  /* Children are in order from bottom to top. We want to
+   * find the topmost managed child, then configure
+   * our window to be above it.
+   */
+  for (i = n_windows -1; i >= 0; i--)
+    {
+      MetaStackWindow *other_window = &windows[i];
+
+      if (other_window->any.type == ignore->any.type &&
+          ((other_window->any.type == META_WINDOW_CLIENT_TYPE_X11 &&
+            other_window->x11.xwindow == ignore->x11.xwindow) ||
+           other_window->wayland.meta_window == ignore->wayland.meta_window))
+        {
+          /* Do nothing. This means we're already the topmost managed
+           * window, but it DOES NOT mean we are already just above
+           * the topmost managed window. This is important because if
+           * an override redirect window is up, and we map a new
+           * managed window, the new window is probably above the old
+           * popup by default, and we want to push it below that
+           * popup. So keep looking for a sibling managed window
+           * to be moved below.
+           */
+        }
+      else
+        {
+          if (other_window->any.type == META_WINDOW_CLIENT_TYPE_X11)
+            {
+              MetaWindow *other = meta_display_lookup_x_window (screen->display,
+                                                                other_window->x11.xwindow);
+
+              if (other != NULL && !other->override_redirect)
+                return other_window;
+            }
+          else
+            {
+              /* All wayland windows are currently considered "managed"
+               * TODO: consider wayland pop-up windows like override
+               * redirect windows here. */
+              return other_window;
+            }
+        }
+    }
+
+  return NULL;
+}
+
+/* When moving an X window we sometimes need an X based sibling.
+ *
+ * If the given sibling is X based this function returns it back
+ * otherwise it searches downwards looking for the nearest X window.
+ *
+ * If no X based sibling could be found return NULL. */
+static MetaStackWindow *
+find_x11_sibling_downwards (MetaScreen *screen,
+                            MetaStackWindow *sibling)
+{
+  MetaStackTracker *stack_tracker = screen->stack_tracker;
+  MetaStackWindow *windows;
+  int n_windows;
+  int i;
+
+  if (sibling->any.type == META_WINDOW_CLIENT_TYPE_X11)
+    return sibling;
+
+  meta_stack_tracker_get_stack (stack_tracker,
+                                &windows, &n_windows);
+
+  /* NB: Children are in order from bottom to top and we
+   * want to search downwards for the nearest X window.
+   */
+
+  for (i = n_windows - 1; i >= 0; i--)
+    if (meta_stack_window_equal (&windows[i], sibling))
+      break;
+
+  for (; i >= 0; i--)
+    {
+      if (windows[i].any.type == META_WINDOW_CLIENT_TYPE_X11)
+        return &windows[i];
+    }
+
+  return NULL;
+}
+
 /**
  * raise_window_relative_to_managed_windows:
  *
@@ -1051,84 +1156,74 @@ stack_ensure_sorted (MetaStack *stack)
  */
 static void
 raise_window_relative_to_managed_windows (MetaScreen *screen,
-                                          Window      xwindow)
+                                          const MetaStackWindow *window)
 {
+  gulong serial = 0;
+  MetaStackWindow *sibling;
 
-  Window *children;
-  int n_children;
-  int i;
-
-  meta_stack_tracker_get_stack (screen->stack_tracker,
-                                &children, &n_children);
-
-  /* Children are in order from bottom to top. We want to
-   * find the topmost managed child, then configure
-   * our window to be above it.
-   */
-  i = n_children - 1;
-  while (i >= 0)
+  sibling = find_top_most_managed_window (screen, window);
+  if (!sibling)
     {
-      if (children[i] == xwindow)
+      if (window->any.type == META_WINDOW_CLIENT_TYPE_X11)
         {
-          /* Do nothing. This means we're already the topmost managed
-           * window, but it DOES NOT mean we are already just above
-           * the topmost managed window. This is important because if
-           * an override redirect window is up, and we map a new
-           * managed window, the new window is probably above the old
-           * popup by default, and we want to push it below that
-           * popup. So keep looking for a sibling managed window
-           * to be moved below.
-           */
+          serial = XNextRequest (screen->display->xdisplay);
+          meta_error_trap_push (screen->display);
+          XLowerWindow (screen->display->xdisplay,
+                        window->x11.xwindow);
+          meta_error_trap_pop (screen->display);
         }
-      else
-        {
-          MetaWindow *other = meta_display_lookup_x_window (screen->display,
-                                                            children[i]);
-          if (other != NULL && !other->override_redirect)
-            {
-              XWindowChanges changes;
 
-              /* children[i] is the topmost managed child */
+      /* No sibling to use, just lower ourselves to the bottom
+       * to be sure we're below any override redirect windows.
+           */
+      meta_stack_tracker_record_lower (screen->stack_tracker,
+                                       window,
+                                       serial);
+      return;
+        }
+
+  /* window is the topmost managed child */
               meta_topic (META_DEBUG_STACK,
                           "Moving 0x%lx above topmost managed child window 0x%lx\n",
-                          xwindow, children[i]);
+              window->any.type == META_WINDOW_CLIENT_TYPE_X11 ? window->x11.xwindow: 0,
+              sibling->any.type == META_WINDOW_CLIENT_TYPE_X11 ? sibling->x11.xwindow: 0);
 
-              changes.sibling = children[i];
+  if (window->any.type == META_WINDOW_CLIENT_TYPE_X11)
+    {
+      XWindowChanges changes;
+      MetaStackWindow *x11_sibling = find_x11_sibling_downwards (screen, sibling);
+      serial = XNextRequest (screen->display->xdisplay);
+
+      if (x11_sibling)
+        {
+          changes.sibling = x11_sibling->x11.xwindow;
               changes.stack_mode = Above;
 
               meta_error_trap_push (screen->display);
-              meta_stack_tracker_record_raise_above (screen->stack_tracker,
-                                                     xwindow,
-                                                     children[i],
-                                                     XNextRequest (screen->display->xdisplay));
               XConfigureWindow (screen->display->xdisplay,
-                                xwindow,
+                            window->x11.xwindow,
                                 CWSibling | CWStackMode,
                                 &changes);
               meta_error_trap_pop (screen->display);
-
-              break;
-            }
         }
-
-      --i;
-    }
-
-  if (i < 0)
+      else
     {
       /* No sibling to use, just lower ourselves to the bottom
        * to be sure we're below any override redirect windows.
        */
       meta_error_trap_push (screen->display);
-      meta_stack_tracker_record_lower (screen->stack_tracker,
-                                       xwindow,
-                                       XNextRequest (screen->display->xdisplay));
       XLowerWindow (screen->display->xdisplay,
-                    xwindow);
+                        window->x11.xwindow);
       meta_error_trap_pop (screen->display);
     }
 }
 
+  meta_stack_tracker_record_raise_above (screen->stack_tracker,
+                                         window,
+                                         sibling,
+                                         serial);
+}
+
 /**
  * stack_sync_to_server:
  *
@@ -1143,13 +1238,16 @@ raise_window_relative_to_managed_windows (MetaScreen *screen,
  * job of computing the minimal set of stacking requests needed.
  */
 static void
-stack_sync_to_server (MetaStack *stack)
+stack_sync_to_xserver (MetaStack *stack)
 {
-  GArray *stacked;
-  GArray *root_children_stacked;
+  GArray *x11_stacked;
+  GArray *x11_root_children_stacked;
+  GArray *all_root_children_stacked; /* wayland OR x11 */
   GList *tmp;
-  GArray *all_hidden;
+  GArray *x11_hidden;
+  GArray *x11_hidden_stack_windows;
   int n_override_redirect = 0;
+  MetaStackWindow guard_stack_window;
   
   /* Bail out if frozen */
   if (stack->freeze_count > 0)
@@ -1164,13 +1262,17 @@ stack_sync_to_server (MetaStack *stack)
    * _NET hints, and "root_children_stacked" is in top-to-bottom
    * order for XRestackWindows()
    */
-  stacked = g_array_new (FALSE, FALSE, sizeof (Window));
-  root_children_stacked = g_array_new (FALSE, FALSE, sizeof (Window));
-  all_hidden = g_array_new (FALSE, FALSE, sizeof (Window));
+  x11_stacked = g_array_new (FALSE, FALSE, sizeof (Window));
+
+  all_root_children_stacked = g_array_new (FALSE, FALSE, sizeof (MetaStackWindow));
+  x11_root_children_stacked = g_array_new (FALSE, FALSE, sizeof (Window));
+
+  x11_hidden_stack_windows = g_array_new (FALSE, FALSE, sizeof (MetaStackWindow));
+  x11_hidden = g_array_new (FALSE, FALSE, sizeof (Window));
 
   /* The screen guard window sits above all hidden windows and acts as
    * a barrier to input reaching these windows. */
-  g_array_append_val (all_hidden, stack->screen->guard_window);
+  g_array_append_val (x11_hidden, stack->screen->guard_window);
 
   meta_topic (META_DEBUG_STACK, "Top to bottom: ");
   meta_push_no_msg_prefix ();
@@ -1179,6 +1281,9 @@ stack_sync_to_server (MetaStack *stack)
     {
       MetaWindow *w = tmp->data;
       Window top_level_window;
+      MetaStackWindow stack_window;
+
+      stack_window.any.type = w->client_type;
       
       meta_topic (META_DEBUG_STACK, "%u:%d - %s ",
 		  w->layer, w->stack_position, w->desc);
@@ -1187,60 +1292,82 @@ stack_sync_to_server (MetaStack *stack)
       if (w->override_redirect)
 	n_override_redirect++;
       else
-	g_array_prepend_val (stacked, w->xwindow);
+	g_array_prepend_val (x11_stacked, w->xwindow);
       
       if (w->frame)
 	top_level_window = w->frame->xwindow;
       else
 	top_level_window = w->xwindow;
 
+      if (w->client_type == META_WINDOW_CLIENT_TYPE_X11)
+        stack_window.x11.xwindow = top_level_window;
+      else
+        stack_window.wayland.meta_window = w;
+
       /* We don't restack hidden windows along with the rest, though they are
        * reflected in the _NET hints. Hidden windows all get pushed below
        * the screens fullscreen guard_window. */
       if (w->hidden)
 	{
-	  g_array_append_val (all_hidden, top_level_window);
+          if (w->client_type == META_WINDOW_CLIENT_TYPE_X11)
+            {
+              MetaStackWindow stack_window;
+
+              stack_window.any.type = META_WINDOW_CLIENT_TYPE_X11;
+              stack_window.x11.xwindow = top_level_window;
+
+              g_array_append_val (x11_hidden_stack_windows, stack_window);
+              g_array_append_val (x11_hidden, top_level_window);
+            }
 	  continue;
 	}
 
+      g_array_append_val (all_root_children_stacked, stack_window);
+
       /* build XRestackWindows() array from top to bottom */
-      g_array_append_val (root_children_stacked, top_level_window);
+      if (w->client_type == META_WINDOW_CLIENT_TYPE_X11)
+        g_array_append_val (x11_root_children_stacked, top_level_window);
     }
 
   meta_topic (META_DEBUG_STACK, "\n");
   meta_pop_no_msg_prefix ();
 
-  /* All windows should be in some stacking order */
-  if (stacked->len != stack->windows->len - n_override_redirect)
+  /* All X windows should be in some stacking order */
+  if (x11_stacked->len != stack->xwindows->len - n_override_redirect)
     meta_bug ("%u windows stacked, %u windows exist in stack\n",
-              stacked->len, stack->windows->len);
+              x11_stacked->len, stack->xwindows->len);
   
   /* Sync to server */
 
   meta_topic (META_DEBUG_STACK, "Restacking %u windows\n",
-              root_children_stacked->len);
+              all_root_children_stacked->len);
   
   meta_error_trap_push (stack->screen->display);
 
-  if (stack->last_root_children_stacked == NULL)
+  if (stack->last_all_root_children_stacked == NULL)
     {
       /* Just impose our stack, we don't know the previous state.
        * This involves a ton of circulate requests and may flicker.
        */
       meta_topic (META_DEBUG_STACK, "Don't know last stack state, restacking everything\n");
 
-      if (root_children_stacked->len > 0)
+      if (all_root_children_stacked->len > 1)
         {
-          meta_stack_tracker_record_restack_windows (stack->screen->stack_tracker,
-                                                     (Window *) root_children_stacked->data,
-                                                     root_children_stacked->len,
-                                                     XNextRequest (stack->screen->display->xdisplay));
+          gulong serial = 0;
+          if (x11_root_children_stacked->len > 1)
+            {
+              serial = XNextRequest (stack->screen->display->xdisplay);
           XRestackWindows (stack->screen->display->xdisplay,
-                           (Window *) root_children_stacked->data,
-                           root_children_stacked->len);
+                               (Window *) x11_root_children_stacked->data,
+                               x11_root_children_stacked->len);
+            }
+          meta_stack_tracker_record_restack_windows (stack->screen->stack_tracker,
+                                                     (MetaStackWindow *) all_root_children_stacked->data,
+                                                     all_root_children_stacked->len,
+                                                     serial);
         }
     }
-  else if (root_children_stacked->len > 0)
+  else if (all_root_children_stacked->len > 0)
     {
       /* Try to do minimal window moves to get the stack in order */
       /* A point of note: these arrays include frames not client windows,
@@ -1248,28 +1375,34 @@ stack_sync_to_server (MetaStack *stack)
        * was saved, then we may have inefficiency, but I don't think things
        * break...
        */
-      const Window *old_stack = (Window *) stack->last_root_children_stacked->data;
-      const Window *new_stack = (Window *) root_children_stacked->data;
-      const int old_len = stack->last_root_children_stacked->len;
-      const int new_len = root_children_stacked->len;
-      const Window *oldp = old_stack;
-      const Window *newp = new_stack;
-      const Window *old_end = old_stack + old_len;
-      const Window *new_end = new_stack + new_len;
-      Window last_window = None;
-      
+      const MetaStackWindow *old_stack = (MetaStackWindow *) stack->last_all_root_children_stacked->data;
+      const MetaStackWindow *new_stack = (MetaStackWindow *) all_root_children_stacked->data;
+      const int old_len = stack->last_all_root_children_stacked->len;
+      const int new_len = all_root_children_stacked->len;
+      const MetaStackWindow *oldp = old_stack;
+      const MetaStackWindow *newp = new_stack;
+      const MetaStackWindow *old_end = old_stack + old_len;
+      const MetaStackWindow *new_end = new_stack + new_len;
+      Window last_xwindow = None;
+      const MetaStackWindow *last_window = NULL;
+
       while (oldp != old_end &&
              newp != new_end)
         {
-          if (*oldp == *newp)
+          if (meta_stack_window_equal (oldp, newp))
             {
               /* Stacks are the same here, move on */
               ++oldp;
-              last_window = *newp;
+              if (newp->any.type == META_WINDOW_CLIENT_TYPE_X11)
+                last_xwindow = newp->x11.xwindow;
+              last_window = newp;
               ++newp;
             }
-          else if (meta_display_lookup_x_window (stack->screen->display,
-                                                 *oldp) == NULL)
+          else if ((oldp->any.type == META_WINDOW_CLIENT_TYPE_X11 &&
+                    meta_display_lookup_x_window (stack->screen->display,
+                                                  oldp->x11.xwindow) == NULL) ||
+                   (oldp->any.type == META_WINDOW_CLIENT_TYPE_WAYLAND &&
+                    oldp->wayland.meta_window == NULL))
             {
               /* *oldp is no longer known to us (probably destroyed),
                * so we can just skip it
@@ -1278,75 +1411,161 @@ stack_sync_to_server (MetaStack *stack)
             }
           else
             {
-              /* Move *newp below last_window */
-              if (last_window == None)
+              /* Move *newp below the last_window */
+              if (!last_window)
                 {
-                  meta_topic (META_DEBUG_STACK, "Using window 0x%lx as topmost (but leaving it in-place)\n", *newp);
+                  meta_topic (META_DEBUG_STACK, "Using window 0x%lx as topmost (but leaving it in-place)\n",
+                              newp->x11.xwindow);
 
-                  raise_window_relative_to_managed_windows (stack->screen,
-                                                            *newp);
+                  raise_window_relative_to_managed_windows (stack->screen, newp);
+                }
+              else if (newp->any.type == META_WINDOW_CLIENT_TYPE_X11 &&
+                       last_xwindow == None)
+                {
+                  /* In this case we have an X window that we need to
+                   * put below a wayland window and this is the
+                   * topmost X window. */
+                  
+                  /* In X terms (because this is the topmost X window)
+                   * we want to
+                   * raise_window_relative_to_managed_windows() to
+                   * ensure the X window is below override-redirect
+                   * pop-up windows.
+                   *
+                   * In Wayland terms we just want to ensure
+                   * newp is lowered below last_window (which
+                   * notably doesn't require an X request because we
+                   * know last_window isn't an X window).
+                   */
+
+                  raise_window_relative_to_managed_windows (stack->screen, newp);
+
+                  meta_stack_tracker_record_lower_below (stack->screen->stack_tracker,
+                                                         newp, last_window,
+                                                         0); /* no x request serial */
                 }
               else
                 {
-                  /* This means that if last_window is dead, but not
+                  gulong serial = 0;
+
+                  /* This means that if last_xwindow is dead, but not
                    * *newp, then we fail to restack *newp; but on
-                   * unmanaging last_window, we'll fix it up.
+                   * unmanaging last_xwindow, we'll fix it up.
                    */
                   
-                  XWindowChanges changes;
+                  meta_topic (META_DEBUG_STACK, "Placing window 0x%lx below 0x%lx\n",
+                              newp->any.type == META_WINDOW_CLIENT_TYPE_X11 ? newp->x11.xwindow : 0,
+                              last_xwindow);
 
-                  changes.sibling = last_window;
+                  if (newp->any.type == META_WINDOW_CLIENT_TYPE_X11)
+                    {
+                  XWindowChanges changes;
+                      serial = XNextRequest (stack->screen->display->xdisplay);
+
+                      changes.sibling = last_xwindow;
                   changes.stack_mode = Below;
 
-                  meta_topic (META_DEBUG_STACK, "Placing window 0x%lx below 0x%lx\n",
-                              *newp, last_window);
-
-                  meta_stack_tracker_record_lower_below (stack->screen->stack_tracker,
-                                                         *newp, last_window,
-                                                         XNextRequest (stack->screen->display->xdisplay));
                   XConfigureWindow (stack->screen->display->xdisplay,
-                                    *newp,
+                                        newp->x11.xwindow,
                                     CWSibling | CWStackMode,
                                     &changes);
                 }
 
-              last_window = *newp;
+                  meta_stack_tracker_record_lower_below (stack->screen->stack_tracker,
+                                                         newp, last_window,
+                                                         serial);
+                }
+
+              if (newp->any.type == META_WINDOW_CLIENT_TYPE_X11)
+                last_xwindow = newp->x11.xwindow;
+              last_window = newp;
               ++newp;
             }
         }
 
       if (newp != new_end)
         {
+          const MetaStackWindow *x_ref;
+          unsigned long serial = 0;
+
           /* Restack remaining windows */
           meta_topic (META_DEBUG_STACK, "Restacking remaining %d windows\n",
                         (int) (new_end - newp));
+
+          /* rewind until we find the last stacked X window that we can use
+           * as a reference point for re-stacking remaining X windows */
+          if (newp != new_stack)
+            for (x_ref = newp - 1;
+                 x_ref->any.type != META_WINDOW_CLIENT_TYPE_X11 && x_ref > new_stack;
+                 x_ref--)
+              ;
+          else
+            x_ref = new_stack;
+
+          /* If we didn't find an X window looking backwards then walk forwards
+           * through the remaining windows to find the first remaining X window
+           * instead. */
+          if (x_ref->any.type != META_WINDOW_CLIENT_TYPE_X11)
+            {
+              for (x_ref = newp;
+                   x_ref->any.type != META_WINDOW_CLIENT_TYPE_X11 && x_ref > new_stack;
+                   x_ref++)
+                ;
+            }
+
+          /* If there are any X windows remaining unstacked then restack them */
+          if (x_ref->any.type == META_WINDOW_CLIENT_TYPE_X11)
+            {
+              int i;
+
+              for (i = x11_root_children_stacked->len - 1; i; i--)
+                {
+                  Window *reference = &g_array_index (x11_root_children_stacked, Window, i);
+
+                  if (*reference == x_ref->x11.xwindow)
+                    {
+                      int n = x11_root_children_stacked->len - i;
+
+                      /* There's no point restacking if there's only one X window */
+                      if (n == 1)
+                        break;
+
+                      serial = XNextRequest (stack->screen->display->xdisplay);
+                      XRestackWindows (stack->screen->display->xdisplay,
+                                       reference, n);
+                      break;
+                    }
+                }
+            }
+
           /* We need to include an already-stacked window
            * in the restack call, so we get in the proper position
            * with respect to it.
            */
           if (newp != new_stack)
-            --newp;
+            newp = MIN (newp - 1, x_ref);
           meta_stack_tracker_record_restack_windows (stack->screen->stack_tracker,
-                                                     (Window *) newp, new_end - newp,
-                                                     XNextRequest (stack->screen->display->xdisplay));
-          XRestackWindows (stack->screen->display->xdisplay,
-                           (Window *) newp, new_end - newp);
+                                                     newp, new_end - newp,
+                                                     serial);
         }
     }
 
-  /* Push hidden windows to the bottom of the stack under the guard window */
+  /* Push hidden X windows to the bottom of the stack under the guard window */
+  guard_stack_window.any.type = META_WINDOW_CLIENT_TYPE_X11;
+  guard_stack_window.x11.xwindow = stack->screen->guard_window;
   meta_stack_tracker_record_lower (stack->screen->stack_tracker,
-                                   stack->screen->guard_window,
+                                   &guard_stack_window,
                                    XNextRequest (stack->screen->display->xdisplay));
   XLowerWindow (stack->screen->display->xdisplay, stack->screen->guard_window);
   meta_stack_tracker_record_restack_windows (stack->screen->stack_tracker,
-                                             (Window *)all_hidden->data,
-                                             all_hidden->len,
+                                             (MetaStackWindow *)x11_hidden_stack_windows->data,
+                                             x11_hidden_stack_windows->len,
                                              XNextRequest (stack->screen->display->xdisplay));
   XRestackWindows (stack->screen->display->xdisplay,
-		   (Window *)all_hidden->data,
-		   all_hidden->len);
-  g_array_free (all_hidden, TRUE);
+		   (Window *)x11_hidden->data,
+		   x11_hidden->len);
+  g_array_free (x11_hidden, TRUE);
+  g_array_free (x11_hidden_stack_windows, TRUE);
 
   meta_error_trap_pop (stack->screen->display);
   /* on error, a window was destroyed; it should eventually
@@ -1361,21 +1580,23 @@ stack_sync_to_server (MetaStack *stack)
                    stack->screen->display->atom__NET_CLIENT_LIST,
                    XA_WINDOW,
                    32, PropModeReplace,
-                   (unsigned char *)stack->windows->data,
-                   stack->windows->len);
+                   (unsigned char *)stack->xwindows->data,
+                   stack->xwindows->len);
   XChangeProperty (stack->screen->display->xdisplay,
                    stack->screen->xroot,
                    stack->screen->display->atom__NET_CLIENT_LIST_STACKING,
                    XA_WINDOW,
                    32, PropModeReplace,
-                   (unsigned char *)stacked->data,
-                   stacked->len);
+                   (unsigned char *)x11_stacked->data,
+                   x11_stacked->len);
 
-  g_array_free (stacked, TRUE);
+  g_array_free (x11_stacked, TRUE);
 
-  if (stack->last_root_children_stacked)
-    g_array_free (stack->last_root_children_stacked, TRUE);
-  stack->last_root_children_stacked = root_children_stacked;
+  if (stack->last_all_root_children_stacked)
+    free_last_all_root_children_stacked_cache (stack);
+  stack->last_all_root_children_stacked = all_root_children_stacked;
+
+  g_array_free (x11_root_children_stacked, TRUE);
 
   /* That was scary... */
 }
@@ -1486,8 +1707,8 @@ get_default_focus_window (MetaStack     *stack,
   MetaWindow *topmost_in_group;
   MetaWindow *topmost_overall;
   MetaGroup *not_this_one_group;
-  GList *link;
-  
+  GList *l;
+
   transient_parent = NULL;
   topmost_in_group = NULL;
   topmost_overall = NULL;
@@ -1499,49 +1720,49 @@ get_default_focus_window (MetaStack     *stack,
   stack_ensure_sorted (stack);
 
   /* top of this layer is at the front of the list */
-  link = stack->sorted;
-      
-  while (link)
+  for (l = stack->sorted; l != NULL; l = l->next)
     {
-      MetaWindow *window = link->data;
+      MetaWindow *window = l->data;
 
-      if (window &&
-          window != not_this_one &&
-          (window->unmaps_pending == 0) &&
-          !window->minimized &&
-          (window->input || window->take_focus) &&
-          (workspace == NULL ||
-           meta_window_located_on_workspace (window, workspace)))
+      if (!window)
+        continue;
+
+      if (window == not_this_one)
+        continue;
+
+      if (window->unmaps_pending > 0)
+        continue;
+
+      if (window->minimized)
+        continue;
+
+      if (!(window->input || window->take_focus))
+        continue;
+
+      if (workspace != NULL && !meta_window_located_on_workspace (window, workspace))
+        continue;
+
+      if (must_be_at_point && !window_contains_point (window, root_x, root_y))
+        continue;
+
+      if (not_this_one != NULL)
         {
-          if (not_this_one != NULL)
-            {
-              if (transient_parent == NULL &&
-                  not_this_one->xtransient_for != None &&
-                  not_this_one->xtransient_for == window->xwindow &&
-                  (!must_be_at_point ||
-                   window_contains_point (window, root_x, root_y)))
-                transient_parent = window;
+          if (transient_parent == NULL &&
+              meta_window_get_transient_for (not_this_one) == window)
+            transient_parent = window;
 
-              if (topmost_in_group == NULL &&
-                  not_this_one_group != NULL &&
-                  not_this_one_group == meta_window_get_group (window) &&
-                  (!must_be_at_point ||
-                   window_contains_point (window, root_x, root_y)))
-                topmost_in_group = window;
-            }
-
-          if (topmost_overall == NULL &&
-              window->type != META_WINDOW_DOCK &&
-              (!must_be_at_point ||
-               window_contains_point (window, root_x, root_y)))
-            topmost_overall = window;
-
-          /* We could try to bail out early here for efficiency in
-           * some cases, but it's just not worth the code.
-           */
+          if (topmost_in_group == NULL &&
+              not_this_one_group != NULL &&
+              not_this_one_group == meta_window_get_group (window))
+            topmost_in_group = window;
         }
 
-      link = link->next;
+      if (topmost_overall == NULL && window->type != META_WINDOW_DOCK)
+        topmost_overall = window;
+
+      /* We could try to bail out early here for efficiency in
+       * some cases, but it's just not worth the code.
+       */
     }
 
   if (transient_parent)
@@ -1726,7 +1947,7 @@ meta_stack_set_positions (MetaStack *stack,
   meta_topic (META_DEBUG_STACK,
               "Reset the stack positions of (nearly) all windows\n");
 
-  stack_sync_to_server (stack);
+  stack_sync_to_xserver (stack);
   meta_stack_update_window_tile_matches (stack, NULL);
 }
 
@@ -1789,7 +2010,7 @@ meta_window_set_stack_position (MetaWindow *window,
                                 int         position)
 {
   meta_window_set_stack_position_no_sync (window, position);
-  stack_sync_to_server (window->screen->stack);
+  stack_sync_to_xserver (window->screen->stack);
   meta_stack_update_window_tile_matches (window->screen->stack,
                                          window->screen->active_workspace);
 }

src/core/stack.h

@@ -58,7 +58,7 @@ struct _MetaStack
    * A sequence of all the Windows (X handles, not MetaWindows) of the windows
    * we manage, sorted in order.  Suitable to be passed into _NET_CLIENT_LIST.
    */
-  GArray *windows;
+  GArray *xwindows;
 
   /** The MetaWindows of the windows we manage, sorted in order. */
   GList *sorted;
@@ -97,7 +97,7 @@ struct _MetaStack
    * The last-known stack of all windows, bottom to top.  We cache it here
    * so that subsequent times we'll be able to do incremental moves.
    */
-  GArray *last_root_children_stacked;
+  GArray *last_all_root_children_stacked;
 
   /**
    * Number of stack positions; same as the length of added, but

src/core/util-private.h

@@ -32,5 +32,6 @@ void     meta_set_verbose (gboolean setting);
 void     meta_set_debugging (gboolean setting);
 void     meta_set_syncing (gboolean setting);
 void     meta_set_replace_current_wm (gboolean setting);
+void     meta_set_is_wayland_compositor (gboolean setting);
 
 #endif