Using the new Cogl API to actually modeset (because we can't
use the DRM API directly without controlling buffer swap), we
can finally have a KMS monitor backend, which means full display
configuration when running on bare metal.
https://bugzilla.gnome.org/show_bug.cgi?id=706308
Switching meta/util.h to gi18n.h was wrong, mutter is a library
and needs gi18n-lib.h, but that cannot be included from a public
header (since it depends on config.h or command line options),
so split util.h into a public and a private part.
https://bugzilla.gnome.org/show_bug.cgi?id=707897
Add a new interface, gtk_shell, than can be used by gtk to
retrieve a surface extension called gtk_surface, which will be
used to communicate with mutter all the GTK extensions to EWMH
https://bugzilla.gnome.org/show_bug.cgi?id=707128
Add support for GTK application menus
To do so, we need to be able to set surface state before creating
the MetaWindow, so we introduce MetaWaylandSurfaceInitialState as
a staging area.
The gtk-shell-surface implementation would either write to the
initial state, or directly to the window.
At the same, implement set_title and set_class too, because it's
easy enough.
https://bugzilla.gnome.org/show_bug.cgi?id=707128
Once mutter is started from weston-launch on its own VT, there is
no way to change VT again (for example to actually start an application),
because the keyboard is put in raw mode.
So introduce some keybindings mimicking the standard X ones (Ctrl+Alt+Fn)
that switch the VT manually when activated.
https://bugzilla.gnome.org/show_bug.cgi?id=705861
Now that we have a setuid launcher binary, we can make use of
using a private protocol through the socket we're passed at startup.
We also use the new hook in clutter-evdev to ask mutter-launch for
the FDs of the input devices we need, and we emulate the old X
DRM lock with a nested GMainContext without sources.
In the future, mutter-launch will be replaced with the new logind
API currently in development.
https://bugzilla.gnome.org/show_bug.cgi?id=705861
Being a setuid binary, our LD_LIBRARY_PATH is cleared by glibc at
startup, but we need the spawned binary to see it, otherwise
jhbuild doesn't work, so hardcode it using the configured libdir.
https://bugzilla.gnome.org/show_bug.cgi?id=705861
To run mutter as a display server, one needs to acquire and
release the DRM master, which is only possible for root, so
we take advantage of weston-launch, a small setuid helper binary
written for the weston project. We import our own slightly
modified copy of it, because weston-launch only launches weston,
for security reasons.
https://bugzilla.gnome.org/show_bug.cgi?id=705861
Modify all visible instances of mutter with mutter-wayland
(libraries, folders, pkgconfig, etc.), so that the wayland
branch can be installed alongside the usual X11 mutter.
https://bugzilla.gnome.org/show_bug.cgi?id=705497
In the wayland branch of mutter, we want to build a wayland version
of the mutter libraries, and that's much easier if we just build
wayland support unconditionally.
The define is kept to avoid a huge diff, but should be removed
in a later patch.
Also, wayland support can still be disable at runtime, by
launching mutter without the --nested switch.
https://bugzilla.gnome.org/show_bug.cgi?id=705497
To allow other clients (gnome-session, gnome-settings-daemon)
to monitor user activity, introduce a DBus interface for the
idle monitor inside mutter.
https://bugzilla.gnome.org/show_bug.cgi?id=706005
When running as a wayland compositor, we can't use the xserver's
IDLETIME, because that's updated only in response to X events.
But we have all the events ourselves, so we can just run the timer
in process.
https://bugzilla.gnome.org/show_bug.cgi?id=706005
Under X, we need to use XFixes to watch the cursor changing, while
on wayland, we're in charge of setting and painting the cursor.
MetaCursorTracker provides the abstraction layer for gnome-shell,
which can thus drop ShellXFixesCursor. In the future, it may grow
the ability to watch for pointer position too, especially if
CursorEvents are added to the next version of XInput2, and thus
it would also replace the PointerWatcher we use for gnome-shell's
magnifier.
https://bugzilla.gnome.org/show_bug.cgi?id=705911
Instead of keeping a forest of if backend else ..., use a subclass
and virtual functions to discriminate between XRandR and the
dummy backend (which lives in the parent class togheter with the
common code)
https://bugzilla.gnome.org/show_bug.cgi?id=705670
Add a new object, MetaMonitorConfig, that takes care of converting
between the logical configurations stored in monitors.xml and
the HW resources exposed by MonitorManager.
This commit includes loading and saving of configurations, but
still missing is the actual CRTC assignments and a default
configuration when none is found in the file.
https://bugzilla.gnome.org/show_bug.cgi?id=705670
This new interface will be used by the control center and possibly
the settings daemon to configure the screens. It is designed to
resemble a simplified XRandR, while still exposing all the quirks
of the hardware, so that the panel can limit the user choices
appropriately.
To do so, MetaMonitorMode needs to track CRTCs, outputs and modes,
so the low level objects have been decoupled from the high-level
MetaMonitorInfo, which is used by core and API and offers a simplified
view of HW, that hides away the details of what is cloned and how.
This is still not efficient as it should be, because on every
HW change we drop all data structures and rebuild them from scratch
(which is not expensive because there aren't many of them, but
at least in the XRandR path it involves a few sync X calls)
https://bugzilla.gnome.org/show_bug.cgi?id=705670
Consolidate all places that deal with output configuration in
MetaScreen, which gets it either from XRandR or from a dummy static configuration.
We still need to read the Xinerama config, even when running xwayland,
because we need the indices for _NET_WM_FULLSCREEN_MONITORS, but
now we do it only when needed.
https://bugzilla.gnome.org/show_bug.cgi?id=705670
When running Mutter under Cogl's KMS backend no cursor will be
provided so instead this makes it so the cursor will be painted as a
CoglTexture that gets moved in response to mouse motion events. The
painting is done in a subclass of ClutterStage so that we can
guarantee that the cursor will be painted on top of everything else.
This patch adds support for the set_cursor method on the pointer
interface so that clients can change the cursor image.
The set_pointer method sets a surface and a hotspot position to use
for the cursor image. The surface's buffer is converted to a
CoglTexture and attached to a pipeline to paint directly via Cogl. If
a new buffer is attached to the surface the image will be updated. The
cursor reverts back to the default image whenever to the pointer focus
is moved off of any surface.
The image for the pointer is taken from X. It gets installed into
a fixed data location for mutter.
This copies the basic input support from the Clayland demo compositor.
It adds a basic wl_seat implementation which can convert Clutter mouse
events to Wayland events. For this to work all of the wayland surface
actors need to be made reactive.
The wayland keyboard input focus surface is updated whenever Mutter
sees a FocusIn event so that it will stay in synch with whatever
surface Mutter wants as the focus. Wayland surfaces don't get this
event so for now it will just give them focus whenever they are
clicked as a hack to test the code.
Authored-by: Neil Roberts <neil@linux.intel.com>
Authored-by: Giovanni Campagna <gcampagna@src.gnome.org>
This adds support for running mutter as a hybrid X and Wayland
compositor. It runs a headless XWayland server for X applications
that presents wayland surfaces back to mutter which mutter can then
composite.
This aims to not break Mutter's existing support for the traditional X
compositing model which means a single build of Mutter can be
distributed supporting the traditional model and the new Wayland based
compositing model.
TODO: although building with --disable-wayland has at least been tested,
I still haven't actually verified that running as a traditional
compositor isn't broken currently.
Note: At this point no input is supported
Note: multiple authors have contributed to this patch:
Authored-by: Robert Bragg <robert@linux.intel.com>
Authored-by: Neil Roberts <neil@linux.intel.com>
Authored-by: Rico Tzschichholz.
Authored-by: Giovanni Campagna <gcampagna@src.gnome.org>
This adds a --with-xwayland-path configure option that can be used to
specify the absolute path of a headless X server binary supporting
the wayland xserver protocol.
This adds a --enable-wayland configure option to enable building mutter
as a hybrid X and Wayland compositor. By default the option is disabled.
If enabled then HAVE_WAYLAND is defined for C code and as an automake
conditional.
This copies the xserver.xml wayland protocol into a protocol/ directory
since wayland support will depend on this protocol for communicating
with an xwayland X server. Copying the spec like this is consistent with
Weston so we don't need a configure option to locate an external spec.
Background handling in GNOME is very roundabout at the moment.
gnome-settings-daemon uses gnome-desktop to read the background from
disk into a screen-sized pixmap. It then sets the XID of that pixmap
on the _XROOTPMAP_ID root window property.
mutter puts that pixmap into a texture/actor which gnome-shell then
uses.
Having the gnome-settings-daemon detour from disk to screen means we
can't easily let the compositor handle transition effects when
switching backgrounds. Also, having the background actor be
per-screen instead of per-monitor means we may have oversized
textures in certain multihead setups.
This commit changes mutter to read backgrounds from disk itself, and
it changes backgrounds to be per-monitor.
This way background handling/compositing is left to the compositor.
https://bugzilla.gnome.org/show_bug.cgi?id=682427
actor_is_untransformed is a function meta-window-group uses to determine
if an actor is relatively pixel aligned and not contorted. It then
returns the coordinates of the actor.
In a subsequent commit will need the function in a different file, so
this commit separates it out.
https://bugzilla.gnome.org/show_bug.cgi?id=682427
Instead of defining CLUTTER_ENABLE_EXPERIMENTAL_API and
COGL_ENABLE_EXPERIMENTAL_API in individual source files, enable
them on the command line. We weren't tracking exactly what pieces of
experimental API we were using and we were using the experimental
API in most source files that used Clutter and Cogl, so the
local #defines were annoying rather than useful.
https://bugzilla.gnome.org/show_bug.cgi?id=685463
Currently, we have a few function wrappers in the shell for pointer
barriers. If we want to implement interactive features on barriers,
we need some sort of signal to be notified of the interactivity.
In that case, we need to make a more sophisticated object-based wrapper
for a pointer barrier. Add one, and stick it in mutter.
https://bugzilla.gnome.org/show_bug.cgi?id=677215
Using ClutterEffect is not pratical on MetaBackgroundActor, as the FBO
redirection has a noticeable performance impact. Instead, allow adding
GLSL code directly to the pipeline used to draw the background texture.
At the same time, port MetaBackgroundActor to modern Cogl API.
https://bugzilla.gnome.org/show_bug.cgi?id=669798
The EXPORT_PACKAGES variable to the GIR makefile should be the
packages needed to use this gir. It's also unnecessary to set PACKAGES
(which is just used for CFLAGS at scan-time) since CFLAGS is already
pulls in all necessary CFLAGS.
https://bugzilla.gnome.org/show_bug.cgi?id=671092
After the changes in style handling in GTK+, mutter's tooltips no
longer match the tooltip style used in applications. Given that
all buttons in the default layout are well-known, killing tooltips
altogether rather than fixing the styling issues looks like a valid
approach.
https://bugzilla.gnome.org/show_bug.cgi?id=645101
ClutterTexture has many features that we simply don't use and don't make
sense for a subclass with custom drawing. Deriving directly from ClutterActor
simplifies our code by avoiding workarounds and makes things more robust.
Additionally, make it public. GNOME Shell was already assuming that any
MetaShapedTexture was also a ClutterTexture, and we need to replace these
bits with new API for GNOME Shell to use.
https://bugzilla.gnome.org/show_bug.cgi?id=660941
Rather than defining keybindings in static arrays generated at compile
time, store them in a hash table initialized in meta_display_init_keys()
and filled in init_builtin_keybindings().
This is a prerequisite for allowing to add/remove keybindings at runtime.
https://bugzilla.gnome.org/show_bug.cgi?id=663428
Move preferences to GSettings, using mainly shared schemas from
gsettings-desktop-schemas.
Unlike GConf, GSettings support is not optional, as Gio is already
a hard dependency of GTK+.
https://bugzilla.gnome.org/show_bug.cgi?id=635378
meta-texture-rectangle and meta-shaped-texture both create textures
with GL_TEXTURE_RECTANGLE_ARB as the target using direct GL
calls. This patch moves that code into a shared utility function in a
separate file instead. The function resolves the required GL symbols
dynamically instead of linking to them directly so that if Clutter
eventually stops linking to -lGL mutter will continue to build. The
function also splits the texture creation into a separate texture
creation and data upload stage so that it can use
cogl_texture_set_region to upload the data. That way it can avoid
clobbering the glPixelStore state and it can let Cogl do any necessary
format conversion. The code preserves the old value of the rectangle
texture binding instead of clobbering it because Cogl expects to be
able to cache this value to avoid redundant glBindTexture
calls. Finally, the function uses cogl_object_set_data to
automatically destroy the GL texture when the Cogl texture is
destroyed. This avoids having to have special code to destroy the cogl
texture.
https://bugzilla.gnome.org/show_bug.cgi?id=654569
This patch fixes an issue encountered when building mutter
out-of-tree:
* When generating mutter-enum-types.[ch], the glib-mkenums command is
executed from $(srcdir), so it is wrong to prepend $(srcdir) to the
template file.
https://bugzilla.gnome.org/show_bug.cgi?id=624910
Back the API version down to 3.0; since we don't make any stability
guarantees, there's no reason to have a merry-go-round of different
directories and filenames that people have to keep up with.
If mutter is going to be a "real" library, then it should install its
includes so that users can do
#include <meta/display.h>
rather than
#include <display.h>
So rename the includedir accordingly, move src/include to src/meta,
and fix up all internal references.
There were a handful of header files in src/include that were not
installed; this appears to have been part of a plan to keep core/,
ui/, and compositor/ from looking at each others' private includes,
but that wasn't really working anyway. So move all non-installed
headers back into core/ or ui/.
https://bugzilla.gnome.org/show_bug.cgi?id=643959
Move all of the mutter code into a new libmutter-wm.so, split its
main() method into meta_get_option_context(), meta_init() and
meta_run(), add methods for using in-process plugins, and add
libmutter-wm.pc pointing to the new library.
The mutter binary is now just a tiny program that links against
libmutter-wm. The --version and --mutter-plugins options are handled
at the mutter level, not in libmutter-wm, and a few strange unused
command-line options (--no-force-fullscreen and --no-tab-popup) have
been removed.
https://bugzilla.gnome.org/show_bug.cgi?id=643959
This changes the introspection configure flag from
--with/--without-introspection to --enable/--disable-introspection,
and changes it so that trying to enable introspection when g-i is not
installed results in an error, rather than being silently ignored.
https://bugzilla.gnome.org/show_bug.cgi?id=643959
We want switching between the windows of an application to be an easily
accessible operation. The convenient and memorable keybinding is the
key above the tab key - but the keysym for that key isn't consistent
across different keyboard layouts.
Add code that figures out the key from the XKB geometry and a magic
keysym name "Above_Tab" that refers to this key and switch
the default binding for cycle_group to <Alt>Above_Tab. (This will
have no effect for the normal case of getting the key binding from
GConf until this patch is applied to Metacity as well.)
https://bugzilla.gnome.org/show_bug.cgi?id=635569
Add code to track and draw the root window background. The advantage of doing
it here as compared to in a plugin is that we can use the visiblity smarts
of MetaWindowGroup to optimize out drawing the background when obscured.
If handling other than tracking the _XROOTPMAP_ID property is desired in the
future, more functionality like setting the background from a file or doing
cross-fades can be added.
The new background actor is exposed to plugins via meta_plugin_get_background_actor()
similar to other exposed actors to allow cloning the background for use in
other displays. The actual class is not installed for public consumption at
the moment since it has no useful methods.
https://bugzilla.gnome.org/show_bug.cgi?id=634833
Create new cogl-utils.[ch] and move a helper function from
MetaShadowFactory there as meta_create_texture_material(); this
allows us to create single-layer materials from different parts of
Mutter and have them share the same template material.
Also expose a function for creating a 1x1 texture of a given
color meta_create_color_texture_4ub().
https://bugzilla.gnome.org/show_bug.cgi?id=634833
The basic MetaShadowFactory type is moved to a public header, while
the functions to fetch and paint shadows are kept private.
The public object will be used for configuration of shadows by
plugins.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
The current shadow code just uses a single fixed texture (the Gaussian
blur of a rectangle with a fixed blur radius) for drawing all window
shadows. This patch adds the ability
* Implement efficient blurring of arbitrary regions by approximating
a Gaussian blur with multiple box blurs.
* Detect when multiple windows can use the same shadow texture by
converting their shape into a size-invariant MetaWindowShape.
* Add properties shadow-radius, shadow-x-offset, shadow-y-offset,
shadow-opacity to allow the shadow for a window to be configured.
* Add meta_window_actor_paint() and draw the shadow directly
from there rather than using a child actor.
* Remove TidyTextureFrame, which is no longer used
https://bugzilla.gnome.org/show_bug.cgi?id=592382
While the Meego developers agreed to switching mutter to GTK+-3.0
unconditionally a while ago, Canonical used a GTK+-2.0 build for their
Unity project. As Canonical now announced a switch to compiz as their
window manager, there is no longer a reason to maintain GTK+-2.0
compatibility.
https://bugzilla.gnome.org/show_bug.cgi?id=633133
Remove --allow-unprefixed option to the scanner, and fix resulting
problems:
* theme.h and boxes.h are split into a main -header and a private
header that includes stuff that is not generally useful and
hard to introspect. Merge theme-parser.h into theme.h.
* meta_display_get_atom() and meta_window_get_window_type_atom()
are marked as (skip)
* Fix annotation: (element-type Strut) => (element-type Meta.Strut)
https://bugzilla.gnome.org/show_bug.cgi?id=632494
Move all objects and functions namespaced with Mutter into the Meta namespace
to get a single consistent namespace. Changes that aren't simply changing mutter
to meta:
MutterWindow => MetaWindowActor
mutter_get_windows => meta_get_window_actors
mutter_plugin_get_windows => meta_plugin_get_window_actors
https://bugzilla.gnome.org/show_bug.cgi?id=628520
In many places, MetaRegion was being used entirely internally, rather
than for gtk2/gtk3 compatibility. In these cases, it's simpler to just
depend on cairo-1.10 (for both gtk2 and gtk3) and use cairo_region_t.
The few places where we did need GDK compatibility (GdkEvent.region and
gdk_window_shape_combine_mask) are replaced with a combination of
converting GdkRegion to cairo_region_t and conditional code.
https://bugzilla.gnome.org/show_bug.cgi?id=632474
This commit is in preparation for the work happening in GTK3, which will
use Cairo for drawing exclusively. So it is necessary to move all
drawing code to Cairo. In this commit the "gtk2" code is used for both
gtk2 and gtk3; compatibility with newer versions of gtk3 where different
code is needed will be added subsequently.
For compatibility with older GTK versions, the file gdk2-drawing-utils.h
provides a compatibility layer.
The commit changes the API of libmutter-private.
https://bugzilla.gnome.org/show_bug.cgi?id=630203
When dragging a window over a screen edge and dropping it there,
maximize it vertically and scale it horizontally to cover the
corresponding half of the current monitor.
Whenever a "hot area" which triggers this behavior is entered, an
indication of window's target size is displayed after a short delay
to avoid distraction when moving a window between monitors.
https://bugzilla.gnome.org/show_bug.cgi?id=606260
Cleanly build with --warn-fatal. Implementation:
* Liberally apply (skip) where the API is clearly C only, e.g. uses
XLib. The theming code and MutterPlugin are skipped too.
* Add missing (transfer) and (element-type) annotations
For a few functions that had a comment, I turned it into gtk-doc, but
I didn't (with a few exceptions) try to write new documentation in
this pass.
Libmutter-private's preview-widget.h depends on region.h, so that one
needs to be installed as well in order to keep dependees build.
Signed-off-by: Tomas Frydrych <tf@linux.intel.com>
g-ir-scanner is currently buggy and confuses the Gdk.Rectangle alias
with MetaRectangle. Since this is moderately hard to fix in
gobject-introspection and the fix would conflict with in-progress
changes, work around by doing a 'sed job' on the generated Meta.gir.
https://bugzilla.gnome.org/show_bug.cgi?id=623639
In order to replace calls to deprecated GDK code, the current
development version of GTK+ is required. Add some basic compatibility
code to allow building mutter with GTK+ 2.18.
https://bugzilla.gnome.org/show_bug.cgi?id=587991
To replace all calls to deprecated code, GTK+ 2.20 is required - add
some basic compatibility code, so that it is still possible to build
mutter with GTK+ 2.18 when not using -DGSEAL_ENABLE.
https://bugzilla.gnome.org/show_bug.cgi?id=595496
Add MutterTextureTower, an abstraction for getting a image with
the right level of detail for rendering at a particular scale,
by manually scaling down by powers of two.
This results in much better looking scaled window images when
mipmaps can't be used with texture_from_pixmap (which is the
typical case for current GL drivers.)
When framebuffer objects are available, they are used to do
the scaledown using the GPU without having to pull the data
back from video memory. A software codepath is also available
for the case when FBO's are not present, though performance
will suffer
https://bugzilla.gnome.org/show_bug.cgi?id=601032
MetaPreview is only built into libmutter-private, and not included in
the mutter executable. Linking mutter against libmutter-private was
inadvertently added when the introspection build process was set up,
but isn't actually needed, and if -Wl,-as-needed is added during the
build process, then the libmutter-private dependency will be skipped.
* Don't link mutter (or the test programs) against libmutter-private
* Exclude meta-preview.h from the set of headers we feed into the
introspection build process
Reported by Patryk Zawadzki
http://bugzilla.gnome.org/show_bug.cgi?id=587975
* Make generation of the .gir file work for srcdir != builddir
* Add files to CLEANFILES as needed
* Don't distribute the generated file mutter.schemas
When we are painting a stack of 5-10 maximized windows, the
standard bottom-to-top method of drawing every actor results
in a tremendous amount of overdraw and can easily max out
the available memory bandwidth on a low-end* graphics chipset.
It's even worse if window textures are being accessed over
the AGP bus.
When we have opaque windows, we can go ahead and compute visibility
ourselves (in classic X-server fashion) and use that information to
restrict drawing obscured actors.
* Add MutterWindowGroup - a ClutterGroup subclass with logic
for figuring out obscured regions.
* Add mutter_window_get_obscured_region() to get the region
obscured by that window.
* Add mutter_shaped_texture_set_clip_region() to hint
a clip region to the painting code; this is set based on
the computed visible region of MutterWindowGroup.
* Add tidy_texture_frame_set_needs_paint() to hint that the
paint can be skipped entirely; this is used when we detect
that the window shadow is entirely obscured.
http://bugzilla.gnome.org/show_bug.cgi?id=587344
compositor.c: Move MutterWindow code to mutter-window.c;
rename map_win() to mutter_window_map(), etc.
mutter-window-private.h: New private header file for
MutterWindow functions used internally to the compositor.
compositor-mutter.h: Move MutterWindow declarations to
mutter-window.h; move a couple of private functions to
compositor-private.h
compositor-private.h: Move MetaCompScreen declaration to here:
Conceptually it's private to compositor.c, but MutterWindow
manipulates some of the lists directly for now.
mutter-plugin.c compositor.c: Don't call mutter_window_effect_completed()
for MUTTER_PLUGIN_SWITCH_WORKSPACE, but use a new
mutter_switch_workspace_completed(), since the window is
just used to identify a screen.
http://bugzilla.gnome.org/show_bug.cgi?id=587251
Separate code related to creating the gaussian-blurred shadow texture
into a separate file.
Move the definition of MetaCompositor into a compositor-private.h
so that the shadow code can cache the source in the compositor
structure.
http://bugzilla.gnome.org/show_bug.cgi?id=587251
The patch adds GLib marshalling code to Mutter, since it's required for the "workspace-switched" signal.
The definition of MetaMotionDirection enum is moved to common.h since it's now used in workspace.c.
A little cleaning is done in workspace.c:meta_workspace_activate_with_focus(), where compositor-specific code is merged with the rest of the function (required to emit signal), removing #ifdefs.
Now that we only have one compositor, there's no reason to access the
compositor functions through a vtable. Remove the MetaCompositor virtualization
and make the clutter code implement the meta_compositor_* functions
directly.
Move the checks for the compositor being NULL from the vtable wrappers
to the calling code (most of them were already there, so just a few
needed to be added)
Note: the compositor is actually hard-coded on at the moment and the plan
is to remove the non-composited code entirely, so the checks are
added only to keep things neat: they have no practical effect.
http://bugzilla.gnome.org/show_bug.cgi?id=581813
Mutter is a Clutter-based compositing manager. So, remove the code for
the XRender-based compositor, and make it mandatory to have XComposite,
XRender and Clutter.
Run-time support for non-composited operation is left for now.
* src/compositor/mutter/: Move files from this subdirectory into
the main compositor/ directory.
* compositor/compositor-xrender.ccompositor/compositor-xrender.h:
Remove
* include/compositor-clutter.h: Remove this stray file, it had been
replaced with compositor-mutter.h some time back.
http://bugzilla.gnome.org/show_bug.cgi?id=581813
Wedging override-redirect windows into the constraint code in stack.c
results in Mutter getting confused about the stacking order of
these windows with respect to other windows, and may also in some
cases cause Mutter to restack override-redirect windows.
core/stack-tracker.c core/stack-tracker.h: MetaStackTracker - combine
events received from the X server with local changes we have made
to come up with the best possible idea of what the stacking order
is at any one point in time.
core/screen.c core/screen-private.h: Create a MetaStackTracker for
the screen.
core/display.c: Feed relevant events to MetaStackTracker
core/frame.c core/screen.c core/stack.c: When we make changes to the
stacking order or add windows, record those changes immediatley
in MetaStackTracker so we have the information without waiting
for a round-trip.
include/ui.h ui/ui.c: meta_ui_create_frame_window add a return value
for the X request serial used to create the window.
http://bugzilla.gnome.org/show_bug.cgi?id=585984
Code:
All references in the code not related to themes, keybindings, or
GConf were changed from 'metacity' to 'mutter'. This includes, among other
things, strings, comments, the atoms used in the message protocol, and
the envvars used for debugging. The GConf schema file was reduced to
the 3 settings new to mutter.
The overall version was brought up to 2.27 to match current gnome.
Structure:
All files named '*metacity*' were renamed '*mutter*' with appropriate
changes in the automake system. Files removed are
doc/creating_themes, src/themes, doc/metacity-theme.dtd,
metacity.doap. These files will eventually end up in an external
gnome-wm-data module.
Installation location:
On the filesystem the mutter-plugindir was change from
$(libdir)/metacity/plugins/clutter to just $(libdir)/mutter/plugins.
The mutter-plugins.pc.in reflects these changes.
Note:
mutter.desktop.in and mutter-wm.desktop both continue to have
X-GNOME-WMSettingsModule=metacity set. This allows
gnome-control-center to continue using libmetacity.so for
configuration. This is fine since most the general keybindings and wm
settings are being read from /apps/metacity/* in gconf.
Build a XML gir file and binary typelib file for the interfaces that
we are installing for plugin use. They are installed into $(pkglibdir)
since they are private to the application.
http://bugzilla.gnome.org/show_bug.cgi?id=580041
2008-11-22 Thomas Thurman <tthurman@gnome.org>
* src/core/all-keybindings.h: "backward", not "backwards" throughout.
2008-11-20 Thomas Thurman <tthurman@gnome.org>
* configure.in: turned on -Wall and -Werror in order to
trap as many problems as possible.
* src/ui/resizepopup.c: added correct #include.
* src/ui/theme-viewer.c: initialised variable.
* src/core/xprops.c: corrected cast.
* src/core/main.c: added warning if chdir() fails.
* src/core/schema-bindings.c: checking the return
result of fgets().
2008-11-20 Thomas Thurman <tthurman@gnome.org>
Merged screen and window keybinding tables so that
we can use just one file for the both. Also incidentally
closes#528337. Further efficiencies of scale to come.
* src/include/prefs.h: replace META_PREF_*_KEYBINDINGS
with META_PREF_KEYBINDINGS
* src/core/keybindings.c: replace *_bindings with key_bindings
and similar throughout; all window-based functions are now
guaranteed to receive a window so don't need to check for
themselves
(find_handler): moved so it can also be called from
rebuild_binding_table
* src/core/display-private.h: replace *_bindings with key_bindings
* src/core/prefs.c: update_*_binding becomes update_key_binding;
(change_notify): tidy up references to "enormous if statement"
since it's almost entirely gone now
* src/core/all-keybindings.h: new merged version of
screen-bindings.h and window-bindings.h.
svn path=/trunk/; revision=4022
ClutterActors for hidden windows (such windows on different than active
workspaces and windows that are minimized) are available, and reflect the
actual state of the window. This is intended for use in task-switchers etc.
This feature is disabled by default (due to increased demand on resources),
and can be enabled through the metacity/general/live_hidden_windows gconf key.
A trivial sample window switcher is included in the scratch plugin (activated
by clicking on the slide out panel).
2008-10-22 Thomas Thurman <tthurman@gnome.org>
Fixes to make distcheck work again.
* src/Makefile.am: include *-binding.h, and make the schema
building work when builddir != srcdir
* po/POTFILES.in (src/core/keybindings.): include *-binding.h
svn path=/trunk/; revision=3985
2008-10-21 Christian Persch <chpe@gnome.org>
* src/Makefile.am: fix build when schemas are not installed.
Closes#557335.
svn path=/trunk/; revision=3969
2008-10-12 Thomas Thurman <tthurman@gnome.org>
Make the bindings in src/core/*-bindings.h generate
GConf schemas too. Note that there's an i18n issue
(documented in schema-bindings.c) which will be fixed
next checkin.
* src/core/schema-bindings.c: major fixup to make it
ready for use as part of the actual build process.
* src/Makefile.am: added magic to make it call schema-bindings
after it builds it.
* src/core/window-bindings.h: added comments;
also, window menu was listed variously as alt-Space
and alt-Print; it should have been alt-Space.
* src/metacity.schemas.in.in: renamed from s/\.in$//,
sentinel added for the generated bindings,
warning at the top now untrue, and removed.
svn path=/trunk/; revision=3952
2008-09-12 Vincent Untz <vuntz@gnome.org>
Install desktop files in both
.../share/applications and .../share/gnome/wm-properties.
Copied in from the 2.23.x branch. Closes#549479.
* src/metacity-wm.desktop.in: new file
* src/.cvsignore: include the above
* src/Makefile.am: install the above
svn path=/trunk/; revision=3886
Fixed up the build files so we do not build xrender compositor when building
clutter backend; moved clutter initialization to meta_ui_init() so commandline
arguments can be passed into clutter_init().
2008-08-14 Patrick Niklaus <marex@compiz-fusion.org>
Icons for windows are taken from the desktop theme, not from
the Metacity theme or from the fallback icon that Metacity
provided. Closes#524343.
* src/ui/ui.c: Use GtkIconTheme to load the default window icon.
Assumes the existence of an icon called "window", otherwise
falls back to "gtk-missing-image". Fixes#524343.
* src/ui/preview-widget: See above.
* src/include/common.h: Add META_DEFAULT_ICON_NAME.
* src/Makefile.am: Remove default_icon.png from inlinepixbufs.h.
* src/default_icon.png: Removed.
svn path=/trunk/; revision=3812
2008-05-26 Thomas Thurman <tthurman@gnome.org>
* src/Makefile.am: added in two files needed for Iain's
changes earlier to work in a release tarball
svn path=/trunk/; revision=3728
2008-05-19 Iain Holmes <iain@gnome.org>
* src/include/frame.h
* src/include/display.h
* src/include/xprops.h
* src/include/compositor.h
* src/include/types.h
* src/include/window.h
* src/include/errors.h
* src/include/screen.h: New basic public API for compositor.
* src/compositor/*: Separate the compositor out into its own
separate
directory and set it up for backends. Initial XRender backend.
* src/core/compositor.[ch]: Remove
* src/core/frame.h
* src/core/screen.h
* src/core/display.h
* src/core/window.h: Rename to -private.h so as not to clash
with the
new files in include
* src/core/delete.c
* src/core/workspace.h
* src/core/stack.[ch]
* src/core/keybindings.[ch]
* src/core/errors.c
* src/core/effects.[ch]
* src/core/core.c
* src/core/group.h
* src/core/edge-resistance.[ch]
* src/core/window-props.[ch]
* src/core/constraints.h
* src/core/bell.[ch]
* src/core/iconcache.h
* src/core/session.[ch]
* src/core/main.c
* src/core/place.h
* src/core/xprops.c
* src/ui/tabpopup.c: Use the new -private headers
* src/core/display.c
* src/core/frame.c
* src/core/window.c
* src/core/screen.c: Add the API functions required by the
compositor
* src/Makefile.am: Relocate the new files
svn path=/trunk/; revision=3715
2008-05-02 Thomas Thurman <tthurman@gnome.org>
All information should live in exactly one place. This means
that the list of atoms should not be replicated anywhere.
Therefore, we include it via x-macros. Closes#530843.
* src/core/atomnames.h: added list of atom names
* src/Makefile.am: added reference to new file
* src/core/display.h
* src/core/display.c (twice)
* src/core/screen.c: #included atomnames.h instead of having
an enormous list of atoms
* src/core/group-props.c
* src/core/window.c
* src/core/compositor.c
* src/core/window-props.c
* src/core/delete.c
* src/core/workspace.c
* src/core/stack.c
* src/core/keybindings.c
* src/core/iconcache.c
* src/core/group.c
* src/core/xprops.c: changed to new, simpler identifiers
for atoms
svn path=/trunk/; revision=3702
2008-04-10 Lucas Rocha <lucasr@gnome.org>
* src/Makefile.am: no need to create a symlink to .desktop file in
default-session directory anymore as gnome-session will find
metacity's .desktop in its original place.
svn path=/trunk/; revision=3681
2008-03-29 Lucas Rocha <lucasr.at.mundo@gmail.com>
* src/metacity.desktop.in, src/Makefile.am: make Metacity
install its desktop files in the default session directory
as required by the new gnome-session. (Closes #525051.)
svn path=/trunk/; revision=3669
2008-02-27 Jim Huang <jserv.tw@gmail.com>
* src/core/spring-model.[ch]: deleted as no longer used
* src/Makefile.am: modified accordingly
svn path=/trunk/; revision=3607
2008-02-02 Thomas Thurman <tthurman@gnome.org>
* src/Makefile.am: core.h is in include, not core. (Last one, I
promise.)
svn path=/trunk/; revision=3537
2007-12-19 Havoc Pennington <hp@redhat.com>
* src/ui, src/core, src/include: sort source files into these
directories according to which part of the WM they are supposed to
be in. In an eventual plan, we should also create
src/compositor/render, src/compositor/fallback and move some of
the compositor stuff into that.
* autogen.sh: require a newer automake, so we don't have to use
a recursive build
* src/ui/tabpopup.c: put in a hack to make the build temporarily
work, want to commit the large rearrangement before fixing this
not to include workspace.h or frame.h
* src/core/iconcache.c (meta_read_icons): temporarily break this
to get the build to work, want to commit the large rearrangement
before fixing this file not to include theme.h
svn path=/trunk/; revision=3491
2006-05-15 Elijah Newren <newren gmail com>
Revert the accessibility module loading workaround from Gnome
2.6, since gtk+ has long since fixed this for us. #123372.
* src/Makefile.am: remove METACITY_LIBDIR define
* src/main.c (find_accessibility_module,
accessibility_invoke_module, accessibility_invoke, main): remove
the first three of these functions and all calls to them
* src/tabpopup.c (meta_ui_tab_popup_new): not sure if this part of
120025 needed to be reverted but doing the reversion, if wrong, is
the best way to get someone from the accessibility team to scream,
er, I mean comment. ;-)
Tue May 2 17:12:54 2006 Søren Sandmann <sandmann@redhat.com>
* src/c-window.[ch]: New files
* src/c-screen.c: Move WindowInfo struct to new c-window.[ch]
files. Delete various bits of obsolete, commented-out code.
2006-04-25 Elijah Newren <newren gmail com>
* NEWS: 2.15.1 release
* configure.in: belated post-release version bump to 2.15.1
* src/Makefile.am: Include boxes.h so that control-center won't
fail to build #339708.
2006-04-18 Björn Lindqvist <bjourne@gmail.com>
* makefile.am: Add boxes.{c,h} to libmetacity_private
* src/theme-parser.c (check_expression):
* src/theme-viewer.c (run_position_expression_tests):
Use meta_rect ().
* src/theme.c: Replace while loops iterating over sequences with
for loops.
* src/theme.c, src/theme.h (struct _MetaPositionExprEnv,
meta_draw_op_draw, meta_draw_op_list_draw,
meta_theme_draw_menu_icon): Use MetaRectangles in function
prototypes instead of x, y, with, height ints where applicable.
Wed Mar 3 13:25:03 2006 Søren Sandmann <sandmann@redhat.com>
* src/compositor.c, src/c-screen.[ch]: Split the ScreenInfo data
structure into separate, new files c-screen.[ch].
* src/errors.c (x_error_handler): Forward foreign errors to
foreign displays.
* src/errors.c (meta_errors_register_foreign_display): Implement
this function
* src/errors.h: Add new meta_errors_register_foreign_display()
Sat Feb 25 11:46:14 2006 Søren Sandmann <sandmann@redhat.com>
* src/display.c (meta_display_begin_grab_op): Call
meta_compositor_begin_move if there is a compositor
* src/compositor.c (meta_compositor_begin/update/end_move):
Implement those functions.
* src/spring-model.[ch]: New files
2005-11-18 Elijah Newren <newren@gmail.com>
Merge of all the changes on the constraints_experiments branch.
This is just a summary, to get the full ChangeLog of those
changes (approx. 2000 lines):
cvs -q -z3 update -Pd -r constraints_experiments
cvs -q -z3 diff -pu -r CONSTRAINTS_EXPERIMENTS_BRANCHPOINT ChangeLog
Bugs fixed:
unfiled - constraints.c is overly complicated[1]
unfiled - constraints.c is not robust when all constraints
cannot simultaneously be met (constraints need to be
prioritized)
unfiled - keep-titlebar-onscreen constraint is decoration
unaware (since get_outermost_onscreen_positions()
forgets to include decorations)
unfiled - keyboard snap-moving and snap-resizing snap to hidden
edges
109553 - gravity w/ simultaneous move & resize doesn't work
113601 - maximize vertical and horizontal should toggle and be
constrained
122196 - windows show up under vertical panels
122670 - jerky/random resizing of window via keyboard[2]
124582 - keyboard and mouse snap-resizing and snap-moving
erroneously moves the window multidimensionally
136307 - don't allow apps to resize themselves off the screen
(*cough* filechooser *cough*)
142016, 143784 - windows should not span multiple xineramas
unless placed there by the user
143145 - clamp new windows to screensize and force them
onscreen, if they'll fit
144126 - Handle pathological strut lists sanely[3]
149867 - fixed aspect ratio windows are difficult to resize[4]
152898 - make screen edges consistent; allow easy slamming of
windows into the left, right, and bottom edges of the
screen too.
154706 - bouncing weirdness at screen edge with keyboard moving
or resizing
156699 - avoid struts when placing windows, if possible (nasty
a11y blocker)
302456 - dragging offscreen too restrictive
304857 - wireframe moving off the top of the screen is misleading
308521 - make uni-directional resizing easier with
alt-middle-drag and prevent the occasional super
annoying resize-the-wrong-side(s) behavior
312007 - snap-resize moves windows with a minimum size
constraint
312104 - resizing the top of a window can cause the bottom to
grow
319351 - don't instantly snap on mouse-move-snapping, remove
braindeadedness of having order of releasing shift and
releasing button press matter so much
[1] fixed in my opinion, anyway.
[2] Actually, it's not totally fixed--it's just annoying
instead of almost completely unusable. Matthias had a
suggestion that may fix the remainder of the problems (see
http://tinyurl.com/bwzuu).
[3] This bug was originally about not-quite-so-pathological
cases but was left open for the worse cases. The code from
the branch handles the remainder of the cases mentioned in
this bug.
[4] Actually, although it's far better there's still some minor
issues left: a slight drift that's only noticeable after
lots of resizing, and potential problems with partially
onscreen constraints due to not clearing any
fixed_directions flags (aspect ratio windows get resized in
both directions and thus aren't fixed in one of them)
New feature:
81704 - edge resistance for user move and resize operations;
in particular 3 different kinds of resistance are
implemented:
Pixel-Distance: window movement is resisted when it
aligns with an edge unless the movement is greater than
a threshold number of pixels
Timeout: window movement past an edge is prevented until
a certain amount of time has elapsed during the
operation since the first request to move it past that
edge
Keyboard-Buildup: when moving or resizing with the
keyboard, once a window is aligned with a certain edge
it cannot move past until the correct direction has
been pressed enough times (e.g. 2 or 3 times)
Major changes:
- constraints.c has been rewritten; very few lines of code from
the old version remain. There is a comment near the top of
the function explaining the basics of how the new framework
works. A more detailed explanation can be found in
doc/how-constraints-works.txt
- edge-resistance.[ch] are new files implementing edge-resistance.
- boxes.[ch] are new files containing low-level error-prone
functions used heavily in constraints.c and edge-resistance.c,
among various places throughout the code. testboxes.c
contains a thorough testsuite for the boxes.[ch] functions
compiled into a program, testboxes.
- meta_window_move_resize_internal() *must* be told the gravity
of the associated operation (if it's just a move operation,
the gravity will be ignored, but for resize and move+resize
the correct value is needed)
- the craziness of different values that
meta_window_move_resize_internal() accepts has been documented
in a large comment at the beginning of the function. It may
be possible to clean this up some, but until then things will
remain as they were before--caller beware.
- screen and xinerama usable areas (i.e. places not covered by
e.g. panels) are cached in the workspace now, as are the
screen and xinerama edges. These get updated with the
workarea in src/workspace.c:ensure_work_areas_validated()
2004-11-10 James Henstridge <james@jamesh.id.au>
* Makefile.am (DISTCLEANFILES): remove intltool stuff on distclean.
* src/themes/Makefile.am (uninstall-local): add uninstall rule.
* src/Makefile.am (libmetacity_private_la_CFLAGS): set this
variable so that the files shared with metacity get compiled with
different names.
* configure.in: use more modern macros in some places, and make
sure that $ACLOCAL_AMFLAGS is set so that rebuilds work better.
* autogen.sh (conf_flags): use newer automake.
2003-11-15 Havoc Pennington <hp@redhat.com>
* src/main.c (main): fix warning
* src/compositor.c: add a new file to contain compositing manager
functionality; not yet implemented at all.
2003-09-26 Padraig O'Briain <padraig.obriain@sun.com>
* src/Makefile.am: Add -DMETACITY_LIBDIR to support loading of modules
* src/main.c: Add functions find_accessibility_module,
accessibility_invoke_module and accessibility_invoke
(main); Check whether GConf accessibility key is true and if so
load accessibility modules. This code is based on the libgnome code.
src/tabpopup.c (meta_ui_tab_popup_new): Set accessible role of
accessible for label containing window name to STATUSBAR so
AT can be aware of window name.
This fixes bug #120025
2003-02-27 Havoc Pennington <hp@redhat.com>
Switch over to new constraints code, unquestionably introduces
some bugs, but should get us on the right path.
* src/window.c (meta_window_get_work_area_all_xineramas): create
this function again as it turned out to be legitimate for window
position constraint
(adjust_for_gravity): use the width/height from the configure
request to compute the requested move
(meta_window_move_resize_internal): use meta_window_constrain
(update_size_hints): clamp max size to MAXSHORT to avoid worrying
about overflow stuff
* src/constraints.c (meta_window_constrain): don't base placement
on uninitialized variables, general hacking
* src/Makefile.am (metacity_SOURCES): add constraints.c,
constraints.h
* src/constraints.c (meta_window_constrain): update the
cut-and-paste aspect ratio code to have latest bugfixes
2002-12-08 Havoc Pennington <hp@pobox.com>
* README: updates
* src/window.c (MAX_RESIZES_PER_SECOND): change to 20 instead of
30, just as an experiment.
(MOVE_THRESHOLD): change 15 to 20
(RESIZE_THRESHOLD): change 15 to 20
* src/util.c (ensure_logfile): kill this function when verbose
mode is disabled.
2002-11-30 Havoc Pennington <hp@pobox.com>
* src/screen.c (STARTUP_TIMEOUT): lengthen to 15 seconds
* src/util.c (utf8_fputs): hmm, return a value
* src/screen.c (meta_screen_apply_startup_properties): new
function to apply initial workspace based on startup sequence.
* src/window.c (meta_window_new): load _NET_STARTUP_ID
(meta_window_get_startup_id): new function
* src/window-props.c (meta_display_init_window_prop_hooks): add
hooks for _NET_STARTUP_ID
* src/display.c (event_callback): send property events to
groups.
* src/xprops.c (meta_prop_get_values): make a type of INVALID
mean to ignore that property (don't fetch its value).
* src/group.c (meta_group_property_notify): new function
* src/screen.c (set_supported_hint): support _NET_STARTUP_ID
* src/display.c (meta_display_open): add _NET_STARTUP_ID to atoms
we initialize
* src/group-private.h: private header shared between
group-props.c, group.c
* src/group-props.h, src/group-props.c: new files to contain
functions for retrieving group properties
* src/window.c (meta_window_same_application): change this a bit
to work with new definition of group
* src/group.c (meta_window_get_group): always create a group for
every window, using the window's own ID as group leader if
required.
* src/window.c (update_wm_hints): handle changes to group leader
* src/group.c (meta_window_group_leader_changed): new function
* src/display.h (struct _MetaDisplay): _NET_WM_WINDOW_TYPE_SPLASH,
not SPLASHSCREEN. Reported by Gregory Merchan and Matthias Clasen.
* src/screen.c (startup_sequence_timeout): when timing out a
startup sequence, send a remove message, don't just time it out
locally.
Thu Nov 7 17:07:21 2002 Jonathan Blandford <jrb@redhat.com>
* src/libmetacity-private.pc.in: add a pc file for
libmetacity-private
* src/Makefile.am: Install a few files as a shared library so that
others can draw metacity themes.
2002-11-03 Havoc Pennington <hp@pobox.com>
* src/window.c (meta_window_new): use window-props.h stuff for a
couple of properties
(implement_showing): fix printf string
* src/xprops.c (meta_prop_free_values): new function
* src/window-props.h, src/window-props.c: start moving code that
handles loading window properties into this file.
2002-10-26 Havoc Pennington <hp@pobox.com>
* src/xprops.c (meta_prop_get_text_property): new function
(meta_prop_get_wm_hints): new function
(meta_prop_get_class_hint): new function
2002-10-26 Havoc Pennington <hp@pobox.com>
* src/window.c (meta_window_new): use multi-value-get on a couple
of properties for testing
* src/xprops.c (meta_prop_get_values): implement multi-value-get
* src/window.c (update_mwm_hints): XFree motif hints as we changed
it to use Xmalloc
* src/xprops.c: massively rework this to set up a
get-multiple-properties-at-once API.
* src/async-getprop.c (ag_Xmalloc): new function
2002-10-25 Havoc Pennington <hp@pobox.com>
Add "busy cursor on app startup" support, conditionally - works
only if libstartup-notification is found, and in practice requires
a GTK patch that's not in yet.
* src/screen.c: monitor startup events and set busy cursor if
appropriate
* src/display.c (meta_display_open): create SnDisplay
* configure.in: check for startup notification,
and add the cute "configure summary" at the end
2002-10-21 Havoc Pennington <hp@redhat.com>
Optimizations for managing new windows (do not all take effect if
METACITY_DEBUG=1). Bug #96404
* src/keybindings.c (meta_change_keygrab): use error trap nesting
and conditionalize on meta_is_verbose() to avoid a ton of XSync
* src/display.c (meta_change_button_grab): ditto
Throughout: move to new error trap setup to save on XSync calls,
new setup is:
* src/errors.c (meta_error_trap_push_with_return): new function,
an error trap that needs to care about return value and thus
sync even if an outer trap still exists
(meta_error_trap_pop_with_return): new function
(meta_error_trap_pop): add "last_request_was_roundtrip"
argument allowing us to avoid XSync() if we just did
a GetProperty or whatever.
* src/util.c (meta_warning): flush the warning file descriptor
* src/Makefile.am (INCLUDES): define G_LOG_DOMAIN
2002-10-06 Havoc Pennington <hp@pobox.com>
* src/async-getprop.c: Add wacky hack suggested by Keith Packard
to get X properties asynchronously. Not actually used by metacity
yet, but thinking about it.
2002-09-26 Havoc Pennington <hp@pobox.com>
* src/menu.c (meta_window_menu_new): use MetaAccelLabel to display
accelerators for the menu items
* src/metaaccellabel.c: cut-and-paste GtkAccelLabel and port to
use virtual modifiers
* src/Makefile.am (metacity_SOURCES): add metaaccellabel.[hc]
* src/prefs.c (meta_prefs_get_window_binding): new function
* src/core.c (meta_core_get_menu_accelerator): new function
2002-08-20 Havoc Pennington <hp@redhat.com>
* src/frames.c (get_control): if in the title rect check for y
<= TOP_RESIZE_HEIGHT
* src/display.c (meta_spew_event): put x/y coordinates in spew for
enter/leave notify
* src/frames.c (meta_frames_motion_notify_event): move cursor
changing from here to update_prelit_control so it happens on enter
notify as well
(get_control): change test "y < TOP_RESIZE_HEIGHT" to
"y <= TOP_RESIZE_HEIGHT"
* src/Makefile.am (EXTRA_DIST): include .in files in EXTRA_DIST
2002-08-12 Havoc Pennington <hp@redhat.com>
* src/stack.c (compute_layer): window is in fullscreen layer if
any member of its group is fullscreen
* src/window.c (meta_window_unmake_fullscreen): update layer for
whole window group
(meta_window_make_fullscreen): ditto
* src/util.c (meta_unsigned_long_hash): move hash/equal funcs for
Window in here.
* src/group.c: track window groups so we can do stuff with them.
