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A plugin for metacity-clutter (mutter) that initializes Javascript
and via Javascript adds an object to the mutter scene graph.

src/gnome-shell-plugin.c: metacity-clutter-plugin
src/shell-global.[ch]: Simple global-information object
js/: Directory for javascript
scripts/start-in-Xephyr: Launch metacity with our plugin
  "nested" within an Xephy X server

svn path=/trunk/; revision=2
This commit is contained in:
Owen Taylor 2008-10-31 04:22:44 +00:00
commit 4ba985b484
15 changed files with 1544 additions and 0 deletions
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
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License is intended to guarantee your freedom to share and change free
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
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convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
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(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
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
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mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

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Owen Taylor
E-mail: otaylor@redhat.com
Userid: otaylor
Colin Walters
E-mail: walters@redhat.com
Userid: walters

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SUBDIRS = src

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#!/bin/sh
(cd $(dirname $0);
touch ChangeLog NEWS &&
autoreconf --install --symlink &&
autoreconf &&
./configure --enable-maintainer-mode $@
)

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AC_INIT(gnome-shell, 0.0.1)
AC_CONFIG_AUX_DIR(config)
AM_INIT_AUTOMAKE([dist-bzip2 no-dist-gzip])
AM_MAINTAINER_MODE
AC_CONFIG_HEADERS(config.h)
AC_PROG_CC
AM_PROG_LIBTOOL
AC_DISABLE_STATIC
GETTEXT_PACKAGE=gnome-shell
AC_SUBST(GETTEXT_PACKAGE)
AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE, "$GETTEXT_PACKAGE",
[The prefix for our gettext translation domains.])
PKG_CHECK_MODULES(MUTTER_PLUGIN, metacity-plugins gjs-gi-1.0)
changequote(,)dnl
if test "x$GCC" = "xyes"; then
case " $CFLAGS " in
*[\ \ ]-Wall[\ \ ]*) ;;
*) CFLAGS="$CFLAGS -Wall" ;;
esac
case " $OBJCFLAGS " in
*[\ \ ]-Wall[\ \ ]*) ;;
*) OBJCFLAGS="$OBJCFLAGS -Wall" ;;
esac
fi
changequote([,])dnl
AC_OUTPUT([
Makefile
src/Makefile
])

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const Shell = imports.gi.Shell;
const Clutter = imports.gi.Clutter;
function start() {
let global = Shell.global_get();
let message = new Clutter.Label({font_name: "Sans Bold 64px", text: "DRAFT"});
message.set_opacity(75);
// Not working for unclear reasons
// message.set_rotation(Clutter.RotateAxis.Z_AXIS, - 45, 0, 0, 0);
message.set_position(100, 100);
global.get_overlay_group().add_actor(message);
}

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#!/usr/bin/python
import os,sys,subprocess,signal
import random
import shutil
import tempfile
import time
# Uninstalled paths
scripts_dir = os.path.dirname(os.path.abspath(sys.argv[0]))
top_dir = os.path.dirname(scripts_dir)
plugin_dir = os.path.join(top_dir, "src")
plugin = os.path.join(plugin_dir, "libgnome-shell.la")
js_dir = os.path.join(top_dir, "js")
tmpdir = tempfile.mkdtemp("", "gnome-shell.")
try:
display = ":" + str(random.randint(10, 99))
xauth_file = os.path.join(tmpdir, "database")
# Create a random 128-byte key and format it as hex
f = open("/dev/urandom", "r")
key = f.read(16)
f.close()
hexkey = "".join(("%02x" % ord(byte) for byte in key))
# Store that in an xauthority file as the key for connecting to our Xephyr
os.environ['XAUTHORITY'] = xauth_file
retcode = subprocess.call(["xauth", "add", display, "MIT-MAGIC-COOKIE-1", hexkey])
if retcode != 0:
raise RuntimeError("xauth failed")
# Launch Xephyr
xephyr = subprocess.Popen(["Xephyr", display, "-screen", "800x600", "-host-cursor"])
os.environ['DISPLAY'] = display
# Wait for server to get going: LAME
time.sleep(1)
# Start xterm to have some window in our session
subprocess.Popen(["xterm"])
# Now launch metacity-clutter with our plugin
env=dict(os.environ)
env.update({'GNOME_SHELL_JS' : js_dir,
'GI_TYPELIB_PATH' : plugin_dir,
'LD_LIBRARY_PATH' : os.environ.get('LD_LIBRARY_PATH', '') + ':' + plugin_dir})
args = 'DEBUG' in os.environ and os.environ['DEBUG'].split() or []
args.extend(['metacity', '--clutter-plugins=' + plugin, '--replace'])
print args
subprocess.Popen(args, env=env)
# Wait for Xephyr to exit
try:
retcode = xephyr.wait()
except KeyboardInterrupt, e:
os.kill(xephyr.pid, signal.SIGKILL)
finally:
shutil.rmtree(tmpdir)

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INCLUDES = \
$(MUTTER_PLUGIN_CFLAGS) \
-DGETTEXT_PACKAGE=gnome-shell \
-DJSDIR=\"$(pkgdatadir)/js\"
plugindir = $(libdir)/metacity/plugins/clutter
plugin_LTLIBRARIES = libgnome-shell.la
libgnome_shell_la_SOURCES = \
gnome-shell-plugin.c \
shell-global.c \
shell-global.h
libgnome_shell_la_LDFLAGS = -avoid-version -module
libgnome_shell_la_LIBADD = $(MUTTER_PLUGIN_LIBS)
# We can't have any undefined symbols when g-ir-scanner dlopens the library
# to introspect it, so we link everything a _second_ time, including a
# stub file that just defines all the symbols that we use from metacity
noinst_LTLIBRARIES = libgnome-shell-introspect.la
libgnome_shell_introspect_la_SOURCES = \
$(libgnome_shell_la_SOURCES) \
metacity-symbols.c
# The dummy -rpath here is needed to convince libtool to build a
# noinst_LTLIBRARY shared
libgnome_shell_introspect_la_LDFLAGS = -avoid-version -module -rpath $(libdir)
libgnome_shell_introspect_la_LIBADD = $(MUTTER_PLUGIN_LIBS)
typelibdir = $(libdir)/girepository
typelib_DATA = Shell-0.1.typelib
# After we run g-ir-scanner, we need to change the library name written in
# the .gir file from the "fake" second copy of the library to the real name
Shell-0.1.gir: libgnome-shell-introspect.la $(libgnome_shell_la_SOURCES)
g-ir-scanner \
--namespace=Shell \
--nsversion=0.1 \
--include=GObject-2.0 \
--include=Clutter-0.8 \
--library=gnome-shell-introspect \
$(libgnome_shell_la_SOURCES) \
$(INCLUDES) \
-o $@.tmp
sed 's/gnome-shell-introspect/gnome-shell/' < $@.tmp > $@ && rm $@.tmp
# The dependency on libgnome-shell.la here is because g-ir-compiler opens it
# (not the fake library, since we've already done the rewriting)
Shell-0.1.typelib: libgnome-shell.la Shell-0.1.gir
LD_LIBRARY_PATH=. g-ir-compiler Shell-0.1.gir -o $@

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (c) 2008 Intel Corp.
*
* Author: Tomas Frydrych <tf@linux.intel.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#define MUTTER_BUILDING_PLUGIN 1
#include "mutter-plugin.h"
#include <libintl.h>
#define _(x) dgettext (GETTEXT_PACKAGE, x)
#define N_(x) x
#include <clutter/clutter.h>
#include <gmodule.h>
#include <string.h>
#define DESTROY_TIMEOUT 250
#define MINIMIZE_TIMEOUT 250
#define MAXIMIZE_TIMEOUT 250
#define MAP_TIMEOUT 250
#define SWITCH_TIMEOUT 500
#define ACTOR_DATA_KEY "MCCP-Default-actor-data"
static GQuark actor_data_quark = 0;
static gboolean do_init (const char *params);
static void minimize (MutterWindow *actor);
static void map (MutterWindow *actor);
static void destroy (MutterWindow *actor);
static void maximize (MutterWindow *actor,
gint x, gint y, gint width, gint height);
static void unmaximize (MutterWindow *actor,
gint x, gint y, gint width, gint height);
static void switch_workspace (const GList **actors, gint from, gint to,
MetaMotionDirection direction);
static void kill_effect (MutterWindow *actor, gulong event);
static gboolean reload (const char *params);
/*
* Create the plugin struct; function pointers initialized in
* g_module_check_init().
*/
MUTTER_DECLARE_PLUGIN();
/*
* Plugin private data that we store in the .plugin_private member.
*/
typedef struct _PluginState
{
ClutterEffectTemplate *destroy_effect;
ClutterEffectTemplate *minimize_effect;
ClutterEffectTemplate *maximize_effect;
ClutterEffectTemplate *map_effect;
ClutterEffectTemplate *switch_workspace_effect;
/* Valid only when switch_workspace effect is in progress */
ClutterTimeline *tml_switch_workspace1;
ClutterTimeline *tml_switch_workspace2;
GList **actors;
ClutterActor *desktop1;
ClutterActor *desktop2;
gboolean debug_mode : 1;
} PluginState;
/*
* Per actor private data we attach to each actor.
*/
typedef struct _ActorPrivate
{
ClutterActor *orig_parent;
ClutterTimeline *tml_minimize;
ClutterTimeline *tml_maximize;
ClutterTimeline *tml_destroy;
ClutterTimeline *tml_map;
gboolean is_minimized : 1;
gboolean is_maximized : 1;
} ActorPrivate;
static PluginState *plugin_state;
/*
* Actor private data accessor
*/
static void
free_actor_private (gpointer data)
{
if (G_LIKELY (data != NULL))
g_slice_free (ActorPrivate, data);
}
static ActorPrivate *
get_actor_private (MutterWindow *actor)
{
ActorPrivate *priv = g_object_get_qdata (G_OBJECT (actor), actor_data_quark);
if (G_UNLIKELY (actor_data_quark == 0))
actor_data_quark = g_quark_from_static_string (ACTOR_DATA_KEY);
if (G_UNLIKELY (!priv))
{
priv = g_slice_new0 (ActorPrivate);
g_object_set_qdata_full (G_OBJECT (actor),
actor_data_quark, priv,
free_actor_private);
}
return priv;
}
static void
on_switch_workspace_effect_complete (ClutterActor *group, gpointer data)
{
PluginState *state = plugin_state;
GList *l = *((GList**)data);
MutterWindow *actor_for_cb = l->data;
while (l)
{
ClutterActor *a = l->data;
MutterWindow *mc_window = MUTTER_WINDOW (a);
ActorPrivate *priv = get_actor_private (mc_window);
if (priv->orig_parent)
{
clutter_actor_reparent (a, priv->orig_parent);
priv->orig_parent = NULL;
}
l = l->next;
}
clutter_actor_destroy (state->desktop1);
clutter_actor_destroy (state->desktop2);
state->actors = NULL;
state->tml_switch_workspace1 = NULL;
state->tml_switch_workspace2 = NULL;
state->desktop1 = NULL;
state->desktop2 = NULL;
mutter_plugin_effect_completed (mutter_get_plugin(), actor_for_cb,
MUTTER_PLUGIN_SWITCH_WORKSPACE);
}
static void
switch_workspace (const GList **actors, gint from, gint to,
MetaMotionDirection direction)
{
MutterPlugin *plugin = mutter_get_plugin();
PluginState *state = plugin_state;
GList *l;
gint n_workspaces;
ClutterActor *workspace0 = clutter_group_new ();
ClutterActor *workspace1 = clutter_group_new ();
ClutterActor *stage;
int screen_width, screen_height;
stage = mutter_plugin_get_stage (plugin);
mutter_plugin_query_screen_size (plugin,
&screen_width,
&screen_height);
clutter_actor_set_anchor_point (workspace1,
screen_width,
screen_height);
clutter_actor_set_position (workspace1,
screen_width,
screen_height);
clutter_actor_set_scale (workspace1, 0.0, 0.0);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), workspace1);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), workspace0);
if (from == to)
{
mutter_plugin_effect_completed (mutter_get_plugin(), NULL,
MUTTER_PLUGIN_SWITCH_WORKSPACE);
return;
}
n_workspaces = g_list_length (plugin->work_areas);
l = g_list_last (*((GList**) actors));
while (l)
{
MutterWindow *mc_window = l->data;
ActorPrivate *priv = get_actor_private (mc_window);
ClutterActor *window = CLUTTER_ACTOR (mc_window);
gint win_workspace;
win_workspace = mutter_window_get_workspace (mc_window);
if (win_workspace == to || win_workspace == from)
{
gint x, y;
guint w, h;
clutter_actor_get_position (window, &x, &y);
clutter_actor_get_size (window, &w, &h);
priv->orig_parent = clutter_actor_get_parent (window);
clutter_actor_reparent (window,
win_workspace == to ? workspace1 : workspace0);
clutter_actor_show_all (window);
clutter_actor_raise_top (window);
}
else if (win_workspace < 0)
{
/* Sticky window */
priv->orig_parent = NULL;
}
else
{
/* Window on some other desktop */
clutter_actor_hide (window);
priv->orig_parent = NULL;
}
l = l->prev;
}
state->actors = (GList **)actors;
state->desktop1 = workspace0;
state->desktop2 = workspace1;
state->tml_switch_workspace2 =
clutter_effect_scale (state->switch_workspace_effect,
workspace1, 1.0, 1.0,
on_switch_workspace_effect_complete,
(gpointer)actors);
state->tml_switch_workspace1 =
clutter_effect_scale (state->switch_workspace_effect,
workspace0, 0.0, 0.0,
NULL, NULL);
}
/*
* Minimize effect completion callback; this function restores actor state, and
* calls the manager callback function.
*/
static void
on_minimize_effect_complete (ClutterActor *actor, gpointer data)
{
/*
* Must reverse the effect of the effect; must hide it first to ensure
* that the restoration will not be visible.
*/
ActorPrivate *apriv;
MutterWindow *mc_window = MUTTER_WINDOW (actor);
apriv = get_actor_private (MUTTER_WINDOW (actor));
apriv->tml_minimize = NULL;
clutter_actor_hide (actor);
/* FIXME - we shouldn't assume the original scale, it should be saved
* at the start of the effect */
clutter_actor_set_scale (actor, 1.0, 1.0);
clutter_actor_move_anchor_point_from_gravity (actor,
CLUTTER_GRAVITY_NORTH_WEST);
/* Now notify the manager that we are done with this effect */
mutter_plugin_effect_completed (mutter_get_plugin(), mc_window,
MUTTER_PLUGIN_MINIMIZE);
}
/*
* Simple minimize handler: it applies a scale effect (which must be reversed on
* completion).
*/
static void
minimize (MutterWindow *mc_window)
{
PluginState *state = plugin_state;
MetaCompWindowType type;
ClutterActor *actor = CLUTTER_ACTOR (mc_window);
type = mutter_window_get_window_type (mc_window);
if (type == META_COMP_WINDOW_NORMAL)
{
ActorPrivate *apriv = get_actor_private (mc_window);
apriv->is_minimized = TRUE;
clutter_actor_move_anchor_point_from_gravity (actor,
CLUTTER_GRAVITY_CENTER);
apriv->tml_minimize = clutter_effect_scale (state->minimize_effect,
actor,
0.0,
0.0,
(ClutterEffectCompleteFunc)
on_minimize_effect_complete,
NULL);
}
else
mutter_plugin_effect_completed (mutter_get_plugin(), mc_window,
MUTTER_PLUGIN_MINIMIZE);
}
/*
* Minimize effect completion callback; this function restores actor state, and
* calls the manager callback function.
*/
static void
on_maximize_effect_complete (ClutterActor *actor, gpointer data)
{
/*
* Must reverse the effect of the effect.
*/
MutterWindow *mc_window = MUTTER_WINDOW (actor);
ActorPrivate *apriv = get_actor_private (mc_window);
apriv->tml_maximize = NULL;
/* FIXME - don't assume the original scale was 1.0 */
clutter_actor_set_scale (actor, 1.0, 1.0);
clutter_actor_move_anchor_point_from_gravity (actor,
CLUTTER_GRAVITY_NORTH_WEST);
/* Now notify the manager that we are done with this effect */
mutter_plugin_effect_completed (mutter_get_plugin(), mc_window,
MUTTER_PLUGIN_MAXIMIZE);
}
/*
* The Nature of Maximize operation is such that it is difficult to do a visual
* effect that would work well. Scaling, the obvious effect, does not work that
* well, because at the end of the effect we end up with window content bigger
* and differently laid out than in the real window; this is a proof concept.
*
* (Something like a sound would be more appropriate.)
*/
static void
maximize (MutterWindow *mc_window,
gint end_x, gint end_y, gint end_width, gint end_height)
{
MetaCompWindowType type;
ClutterActor *actor = CLUTTER_ACTOR (mc_window);
gdouble scale_x = 1.0;
gdouble scale_y = 1.0;
gint anchor_x = 0;
gint anchor_y = 0;
type = mutter_window_get_window_type (mc_window);
if (type == META_COMP_WINDOW_NORMAL)
{
ActorPrivate *apriv = get_actor_private (mc_window);
guint width, height;
gint x, y;
apriv->is_maximized = TRUE;
clutter_actor_get_size (actor, &width, &height);
clutter_actor_get_position (actor, &x, &y);
/*
* Work out the scale and anchor point so that the window is expanding
* smoothly into the target size.
*/
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);
apriv->tml_maximize =
clutter_effect_scale (plugin_state->maximize_effect,
actor,
scale_x,
scale_y,
(ClutterEffectCompleteFunc)
on_maximize_effect_complete,
NULL);
return;
}
mutter_plugin_effect_completed (mutter_get_plugin(), mc_window,
MUTTER_PLUGIN_MAXIMIZE);
}
/*
* See comments on the maximize() function.
*
* (Just a skeleton code.)
*/
static void
unmaximize (MutterWindow *mc_window,
gint end_x, gint end_y, gint end_width, gint end_height)
{
MetaCompWindowType type = mutter_window_get_window_type (mc_window);
if (type == META_COMP_WINDOW_NORMAL)
{
ActorPrivate *apriv = get_actor_private (mc_window);
apriv->is_maximized = FALSE;
}
/* Do this conditionally, if the effect requires completion callback. */
mutter_plugin_effect_completed (mutter_get_plugin(), mc_window,
MUTTER_PLUGIN_UNMAXIMIZE);
}
static void
on_map_effect_complete (ClutterActor *actor, gpointer data)
{
/*
* Must reverse the effect of the effect.
*/
MutterWindow *mc_window = MUTTER_WINDOW (actor);
ActorPrivate *apriv = get_actor_private (mc_window);
apriv->tml_map = NULL;
clutter_actor_move_anchor_point_from_gravity (actor,
CLUTTER_GRAVITY_NORTH_WEST);
/* Now notify the manager that we are done with this effect */
mutter_plugin_effect_completed (mutter_get_plugin(), mc_window, MUTTER_PLUGIN_MAP);
}
/*
* Simple map handler: it applies a scale effect which must be reversed on
* completion).
*/
static void
map (MutterWindow *mc_window)
{
MetaCompWindowType type;
ClutterActor *actor = CLUTTER_ACTOR (mc_window);
type = mutter_window_get_window_type (mc_window);
if (type == META_COMP_WINDOW_NORMAL)
{
ActorPrivate *apriv = get_actor_private (mc_window);
clutter_actor_move_anchor_point_from_gravity (actor,
CLUTTER_GRAVITY_CENTER);
clutter_actor_set_scale (actor, 0.0, 0.0);
clutter_actor_show (actor);
apriv->tml_map = clutter_effect_scale (plugin_state->map_effect,
actor,
1.0,
1.0,
(ClutterEffectCompleteFunc)
on_map_effect_complete,
NULL);
apriv->is_minimized = FALSE;
}
else
mutter_plugin_effect_completed (mutter_get_plugin(), mc_window,
MUTTER_PLUGIN_MAP);
}
/*
* Destroy effect completion callback; this is a simple effect that requires no
* further action than notifying the manager that the effect is completed.
*/
static void
on_destroy_effect_complete (ClutterActor *actor, gpointer data)
{
MutterPlugin *plugin = mutter_get_plugin();
MutterWindow *mc_window = MUTTER_WINDOW (actor);
ActorPrivate *apriv = get_actor_private (mc_window);
apriv->tml_destroy = NULL;
mutter_plugin_effect_completed (plugin, mc_window,
MUTTER_PLUGIN_DESTROY);
}
/*
* Simple TV-out like effect.
*/
static void
destroy (MutterWindow *mc_window)
{
MetaCompWindowType type;
ClutterActor *actor = CLUTTER_ACTOR (mc_window);
type = mutter_window_get_window_type (mc_window);
if (type == META_COMP_WINDOW_NORMAL)
{
ActorPrivate *apriv = get_actor_private (mc_window);
clutter_actor_move_anchor_point_from_gravity (actor,
CLUTTER_GRAVITY_CENTER);
apriv->tml_destroy = clutter_effect_scale (plugin_state->destroy_effect,
actor,
1.0,
0.0,
(ClutterEffectCompleteFunc)
on_destroy_effect_complete,
NULL);
}
else
mutter_plugin_effect_completed (mutter_get_plugin(), mc_window,
MUTTER_PLUGIN_DESTROY);
}
static void
kill_effect (MutterWindow *mc_window, gulong event)
{
ActorPrivate *apriv;
ClutterActor *actor = CLUTTER_ACTOR (mc_window);
if (event & MUTTER_PLUGIN_SWITCH_WORKSPACE)
{
PluginState *state = plugin_state;
if (state->tml_switch_workspace1)
{
clutter_timeline_stop (state->tml_switch_workspace1);
clutter_timeline_stop (state->tml_switch_workspace2);
on_switch_workspace_effect_complete (state->desktop1, state->actors);
}
if (!(event & ~MUTTER_PLUGIN_SWITCH_WORKSPACE))
{
/* Workspace switch only, nothing more to do */
return;
}
}
apriv = get_actor_private (mc_window);
if ((event & MUTTER_PLUGIN_MINIMIZE) && apriv->tml_minimize)
{
clutter_timeline_stop (apriv->tml_minimize);
on_minimize_effect_complete (actor, NULL);
}
if ((event & MUTTER_PLUGIN_MAXIMIZE) && apriv->tml_maximize)
{
clutter_timeline_stop (apriv->tml_maximize);
on_maximize_effect_complete (actor, NULL);
}
if ((event & MUTTER_PLUGIN_MAP) && apriv->tml_map)
{
clutter_timeline_stop (apriv->tml_map);
on_map_effect_complete (actor, NULL);
}
if ((event & MUTTER_PLUGIN_DESTROY) && apriv->tml_destroy)
{
clutter_timeline_stop (apriv->tml_destroy);
on_destroy_effect_complete (actor, NULL);
}
}
const gchar * g_module_check_init (GModule *module);
const gchar *
g_module_check_init (GModule *module)
{
MutterPlugin *plugin = mutter_get_plugin ();
/* Human readable name (for use in UI) */
plugin->name = "Default Effects";
/* Plugin load time initialiser */
plugin->do_init = do_init;
/* Effect handlers */
plugin->minimize = minimize;
plugin->destroy = destroy;
plugin->map = map;
plugin->maximize = maximize;
plugin->unmaximize = unmaximize;
plugin->switch_workspace = switch_workspace;
plugin->kill_effect = kill_effect;
/* The reload handler */
plugin->reload = reload;
return NULL;
}
/*
* Core of the plugin init function, called for initial initialization and
* by the reload() function. Returns TRUE on success.
*/
static gboolean
do_init (const char *params)
{
guint destroy_timeout = DESTROY_TIMEOUT;
guint minimize_timeout = MINIMIZE_TIMEOUT;
guint maximize_timeout = MAXIMIZE_TIMEOUT;
guint map_timeout = MAP_TIMEOUT;
guint switch_timeout = SWITCH_TIMEOUT;
plugin_state = g_new0 (PluginState, 1);
if (params)
{
if (strstr (params, "debug"))
{
g_debug ("%s: Entering debug mode.", mutter_get_plugin()->name);
plugin_state->debug_mode = TRUE;
/*
* Double the effect duration to make them easier to observe.
*/
destroy_timeout *= 2;
minimize_timeout *= 2;
maximize_timeout *= 2;
map_timeout *= 2;
switch_timeout *= 2;
}
}
plugin_state->destroy_effect
= clutter_effect_template_new (clutter_timeline_new_for_duration (
destroy_timeout),
CLUTTER_ALPHA_SINE_INC);
plugin_state->minimize_effect
= clutter_effect_template_new (clutter_timeline_new_for_duration (
minimize_timeout),
CLUTTER_ALPHA_SINE_INC);
plugin_state->maximize_effect
= clutter_effect_template_new (clutter_timeline_new_for_duration (
maximize_timeout),
CLUTTER_ALPHA_SINE_INC);
plugin_state->map_effect
= clutter_effect_template_new (clutter_timeline_new_for_duration (
map_timeout),
CLUTTER_ALPHA_SINE_INC);
plugin_state->switch_workspace_effect
= clutter_effect_template_new (clutter_timeline_new_for_duration (
switch_timeout),
CLUTTER_ALPHA_SINE_INC);
return TRUE;
}
static void
free_plugin_private (PluginState *state)
{
if (!state)
return;
g_object_unref (state->destroy_effect);
g_object_unref (state->minimize_effect);
g_object_unref (state->maximize_effect);
g_object_unref (state->switch_workspace_effect);
g_free (state);
}
/*
* Called by the plugin manager when we stuff like the command line parameters
* changed.
*/
static gboolean
reload (const char *params)
{
PluginState *state;
state = plugin_state;
if (do_init (params))
{
/* Success; free the old state */
free_plugin_private (plugin_state);
return TRUE;
}
else
{
/* Fail -- fall back to the old state. */
plugin_state = state;
}
return FALSE;
}
/*
* GModule unload function -- do any cleanup required.
*/
G_MODULE_EXPORT void g_module_unload (GModule *module);
G_MODULE_EXPORT void
g_module_unload (GModule *module)
{
free_plugin_private (plugin_state);
}

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (c) 2008 Red Hat, Inc.
* Copyright (c) 2008 Intel Corp.
*
* Based on plugin skeleton by:
* Author: Tomas Frydrych <tf@linux.intel.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#define MUTTER_BUILDING_PLUGIN 1
#include <mutter-plugin.h>
#include <glib/gi18n-lib.h>
#include <clutter/clutter.h>
#include <gjs/gjs.h>
#include <gmodule.h>
#include <string.h>
#include "shell-global.h"
static gboolean do_init (const char *params);
static gboolean reload (const char *params);
/*
* Create the plugin struct; function pointers initialized in
* g_module_check_init().
*/
MUTTER_DECLARE_PLUGIN();
/*
* Plugin private data that we store in the .plugin_private member.
*/
typedef struct _PluginState
{
gboolean debug_mode : 1;
GjsContext *gjs_context;
} PluginState;
static PluginState *plugin_state;
const gchar * g_module_check_init (GModule *module);
const gchar *
g_module_check_init (GModule *module)
{
MutterPlugin *plugin = mutter_get_plugin ();
/* Human readable name (for use in UI) */
plugin->name = "GNOME Shell";
/* Plugin load time initialiser */
plugin->do_init = do_init;
/* The reload handler */
plugin->reload = reload;
return NULL;
}
/*
* Core of the plugin init function, called for initial initialization and
* by the reload() function. Returns TRUE on success.
*/
static gboolean
do_init (const char *params)
{
MutterPlugin *plugin = mutter_get_plugin();
ClutterActor *overlay_group;
GError *error = NULL;
int status;
const char *shell_js;
char **search_path;
plugin_state = g_new0 (PluginState, 1);
if (params)
{
if (strstr (params, "debug"))
{
g_debug ("%s: Entering debug mode.", mutter_get_plugin()->name);
plugin_state->debug_mode = TRUE;
}
}
overlay_group = mutter_plugin_get_overlay_group (plugin);
shell_global_set_overlay_group (shell_global_get(), overlay_group);
shell_js = g_getenv("GNOME_SHELL_JS");
if (!shell_js)
shell_js = JSDIR;
search_path = g_strsplit(shell_js, ":", -1);
plugin_state->gjs_context = gjs_context_new_with_search_path(search_path);
g_strfreev(search_path);
if (!gjs_context_eval (plugin_state->gjs_context,
"const Main = imports.ui.main; Main.start();",
-1,
"<main>",
&status,
&error))
{
g_warning ("Evaling main.js failed: %s", error->message);
g_error_free (error);
}
return TRUE;
}
static void
free_plugin_private (PluginState *state)
{
if (!state)
return;
g_free (state);
}
/*
* Called by the plugin manager when we stuff like the command line parameters
* changed.
*/
static gboolean
reload (const char *params)
{
PluginState *state;
state = plugin_state;
if (do_init (params))
{
/* Success; free the old state */
free_plugin_private (plugin_state);
return TRUE;
}
else
{
/* Fail -- fall back to the old state. */
plugin_state = state;
}
return FALSE;
}
/*
* GModule unload function -- do any cleanup required.
*/
G_MODULE_EXPORT void g_module_unload (GModule *module);
G_MODULE_EXPORT void
g_module_unload (GModule *module)
{
free_plugin_private (plugin_state);
}

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
#include <mutter-plugin.h>
void
mutter_plugin_query_screen_size (MutterPlugin *plugin,
int *width,
int *height)
{
}
ClutterActor *
mutter_plugin_get_overlay_group (MutterPlugin *plugin)
{
return NULL;
}
ClutterActor *
mutter_plugin_get_stage (MutterPlugin *plugin)
{
return NULL;
}

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#include "shell-global.h"
struct _ShellGlobal {
GObject parent;
ClutterActor *overlay_group;
};
struct _ShellGlobalClass {
GObjectClass parent_class;
};
G_DEFINE_TYPE(ShellGlobal, shell_global, G_TYPE_OBJECT);
static void
shell_global_init(ShellGlobal *global)
{
}
static void
shell_global_class_init(ShellGlobalClass *klass)
{
}
ShellGlobal *
shell_global_get (void)
{
static ShellGlobal *the_object = NULL;
if (!the_object)
the_object = g_object_new (SHELL_TYPE_GLOBAL, 0);
return the_object;
}
void
shell_global_set_overlay_group (ShellGlobal *global,
ClutterActor *overlay_group)
{
g_object_ref (overlay_group);
if (global->overlay_group)
g_object_unref(global->overlay_group);
global->overlay_group = overlay_group;
}
ClutterActor *
shell_global_get_overlay_group (ShellGlobal *global)
{
return global->overlay_group;
}
void
shell_global_print_hello (ShellGlobal *global)
{
g_print("Hello World!\n");
}

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#ifndef __SHELL_GLOBAL_H__
#define __SHELL_GLOBAL_H__
#include <clutter/clutter.h>
#include <glib-object.h>
G_BEGIN_DECLS
typedef struct _ShellGlobal ShellGlobal;
typedef struct _ShellGlobalClass ShellGlobalClass;
#define SHELL_TYPE_GLOBAL (shell_global_get_type ())
#define SHELL_GLOBAL(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), SHELL_TYPE_GLOBAL, ShellGlobal))
#define SHELL_GLOBAL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), SHELL_TYPE_GLOBAL, ShellGlobalClass))
#define SHELL_IS_GLOBAL(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), SHELL_TYPE_GLOBAL))
#define SHELL_IS_GLOBAL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), SHELL_TYPE_GLOBAL))
#define SHELL_GLOBAL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), SHELL_TYPE_GLOBAL, ShellGlobalClass))
GType shell_global_get_type (void) G_GNUC_CONST;
ShellGlobal *shell_global_get (void);
void shell_global_set_overlay_group (ShellGlobal *global,
ClutterActor *overlay_group);
ClutterActor *shell_global_get_overlay_group (ShellGlobal *global);
void shell_global_print_hello (ShellGlobal *global);
G_END_DECLS
#endif /* __SHELL_GLOBAL_H__ */