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|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
*
* Copyright (C) 2007 William Jon McCann <mccann@jhu.edu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdlib.h>
#include <unistd.h>
#include <libintl.h>
#include <errno.h>
#include <locale.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/wait.h>
#include <glib/gi18n.h>
#include <glib/gstdio.h>
#include <gtk/gtk.h>
#include <libnotify/notify.h>
#include "gnome-settings-manager.h"
#include "gnome-settings-plugin.h"
#include "gnome-settings-profile.h"
#include "gnome-settings-bus.h"
#include "gsd-idle-monitor-private.h"
#define GNOME_SESSION_DBUS_NAME "org.gnome.SessionManager"
#define GNOME_SESSION_CLIENT_PRIVATE_DBUS_INTERFACE "org.gnome.SessionManager.ClientPrivate"
static gboolean replace = FALSE;
static gboolean debug = FALSE;
static gboolean do_timed_exit = FALSE;
static int term_signal_pipe_fds[2];
static guint name_id = 0;
static GnomeSettingsManager *manager = NULL;
static GOptionEntry entries[] = {
{"debug", 0, 0, G_OPTION_ARG_NONE, &debug, N_("Enable debugging code"), NULL },
{ "replace", 'r', 0, G_OPTION_ARG_NONE, &replace, N_("Replace existing daemon"), NULL },
{ "timed-exit", 0, 0, G_OPTION_ARG_NONE, &do_timed_exit, N_("Exit after a time (for debugging)"), NULL },
{NULL}
};
static gboolean
timed_exit_cb (void)
{
g_debug ("Doing timed exit");
gtk_main_quit ();
return FALSE;
}
static void
stop_manager (GnomeSettingsManager *manager)
{
gnome_settings_manager_stop (manager);
gtk_main_quit ();
}
static void
on_session_over (GDBusProxy *proxy,
gchar *sender_name,
gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
if (g_strcmp0 (signal_name, "SessionOver") == 0) {
g_debug ("Got a SessionOver signal - stopping");
stop_manager (manager);
}
}
static void
respond_to_end_session (GDBusProxy *proxy)
{
/* we must answer with "EndSessionResponse" */
g_dbus_proxy_call (proxy, "EndSessionResponse",
g_variant_new ("(bs)",
TRUE, ""),
G_DBUS_CALL_FLAGS_NONE,
-1, NULL, NULL, NULL);
}
static void
client_proxy_signal_cb (GDBusProxy *proxy,
gchar *sender_name,
gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
if (g_strcmp0 (signal_name, "QueryEndSession") == 0) {
g_debug ("Got QueryEndSession signal");
respond_to_end_session (proxy);
} else if (g_strcmp0 (signal_name, "EndSession") == 0) {
g_debug ("Got EndSession signal");
respond_to_end_session (proxy);
} else if (g_strcmp0 (signal_name, "Stop") == 0) {
g_debug ("Got Stop signal");
stop_manager (manager);
}
}
static void
got_client_proxy (GObject *object,
GAsyncResult *res,
gpointer user_data)
{
GDBusProxy *client_proxy;
GError *error = NULL;
client_proxy = g_dbus_proxy_new_for_bus_finish (res, &error);
if (error != NULL) {
g_debug ("Unable to get the session client proxy: %s", error->message);
g_error_free (error);
return;
}
g_signal_connect (client_proxy, "g-signal",
G_CALLBACK (client_proxy_signal_cb), manager);
}
static void
start_settings_manager (void)
{
gboolean res;
GError *error;
gnome_settings_profile_start ("gnome_settings_manager_new");
manager = gnome_settings_manager_new ();
gnome_settings_profile_end ("gnome_settings_manager_new");
if (manager == NULL) {
g_warning ("Unable to register object");
gtk_main_quit ();
}
error = NULL;
res = gnome_settings_manager_start (manager, &error);
if (! res) {
g_warning ("Unable to start: %s", error->message);
g_error_free (error);
gtk_main_quit ();
}
}
static void
on_client_registered (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
GVariant *variant;
GError *error = NULL;
gchar *object_path = NULL;
variant = g_dbus_proxy_call_finish (G_DBUS_PROXY (source_object), res, &error);
if (error != NULL) {
g_warning ("Unable to register client: %s", error->message);
g_error_free (error);
} else {
g_variant_get (variant, "(o)", &object_path);
g_debug ("Registered client at path %s", object_path);
g_dbus_proxy_new_for_bus (G_BUS_TYPE_SESSION, 0, NULL,
GNOME_SESSION_DBUS_NAME,
object_path,
GNOME_SESSION_CLIENT_PRIVATE_DBUS_INTERFACE,
NULL,
got_client_proxy,
manager);
g_free (object_path);
g_variant_unref (variant);
}
}
static void
session_env_done (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
GVariant *result;
GError *error = NULL;
result = g_dbus_proxy_call_finish (G_DBUS_PROXY (source_object), res, &error);
if (result == NULL) {
g_debug ("Failed to set the environment: %s", error->message);
g_error_free (error);
return;
}
g_variant_unref (result);
}
static void
set_session_env (GDBusProxy *proxy,
const gchar *name,
const gchar *value)
{
g_dbus_proxy_call (proxy,
"Setenv",
g_variant_new ("(ss)", name, value),
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
(GAsyncReadyCallback) session_env_done,
NULL);
}
static void
set_locale (GDBusProxy *proxy)
{
GSettings *locale_settings;
gchar *region;
/* Set locale environment */
locale_settings = g_settings_new ("org.gnome.system.locale");
region = g_settings_get_string (locale_settings, "region");
if (region[0]) {
/* Only set the locale settings if the user has ever customized them */
set_session_env (proxy, "LC_TIME", region);
set_session_env (proxy, "LC_NUMERIC", region);
set_session_env (proxy, "LC_MONETARY", region);
set_session_env (proxy, "LC_MEASUREMENT", region);
set_session_env (proxy, "LC_PAPER", region);
}
g_free (region);
g_object_unref (locale_settings);
}
#ifdef HAVE_IBUS
static gboolean
is_program_in_path (const char *binary)
{
char *path;
path = g_find_program_in_path (binary);
if (path == NULL)
return FALSE;
g_free (path);
return TRUE;
}
static gboolean
keyboard_plugin_is_enabled (void)
{
GSettings *settings;
gboolean enabled;
settings = g_settings_new ("com.canonical.unity.settings-daemon.plugins.keyboard");
enabled = g_settings_get_boolean (settings, "active");
g_object_unref (settings);
return enabled;
}
static void
set_legacy_ibus_env_vars (GDBusProxy *proxy)
{
if (is_program_in_path ("ibus-daemon") &&
keyboard_plugin_is_enabled ()) {
set_session_env (proxy, "QT_IM_MODULE", "ibus");
set_session_env (proxy, "XMODIFIERS", "@im=ibus");
}
}
#endif
static void
register_with_gnome_session (GDBusProxy *proxy)
{
const char *startup_id;
g_signal_connect (G_OBJECT (proxy), "g-signal",
G_CALLBACK (on_session_over), NULL);
startup_id = g_getenv ("DESKTOP_AUTOSTART_ID");
g_dbus_proxy_call (proxy,
"RegisterClient",
g_variant_new ("(ss)", "gnome-settings-daemon", startup_id ? startup_id : ""),
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
(GAsyncReadyCallback) on_client_registered,
manager);
}
static gboolean
on_term_signal_pipe_closed (GIOChannel *source,
GIOCondition condition,
gpointer data)
{
term_signal_pipe_fds[0] = -1;
g_debug ("Received SIGTERM - shutting down");
/* Got SIGTERM, time to clean up and get out
*/
gtk_main_quit ();
return FALSE;
}
static void
on_term_signal (int signal)
{
/* Wake up main loop to tell it to shutdown */
close (term_signal_pipe_fds[1]);
term_signal_pipe_fds[1] = -1;
}
static void
watch_for_term_signal (GnomeSettingsManager *manager)
{
GIOChannel *channel;
if (-1 == pipe (term_signal_pipe_fds) ||
-1 == fcntl (term_signal_pipe_fds[0], F_SETFD, FD_CLOEXEC) ||
-1 == fcntl (term_signal_pipe_fds[1], F_SETFD, FD_CLOEXEC)) {
g_error ("Could not create pipe: %s", g_strerror (errno));
exit (EXIT_FAILURE);
}
channel = g_io_channel_unix_new (term_signal_pipe_fds[0]);
g_io_channel_set_encoding (channel, NULL, NULL);
g_io_channel_set_buffered (channel, FALSE);
g_io_add_watch (channel, G_IO_HUP, on_term_signal_pipe_closed, manager);
g_io_channel_unref (channel);
signal (SIGTERM, on_term_signal);
}
static void
name_acquired_handler (GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
GDBusProxy *proxy;
proxy = G_DBUS_PROXY (gnome_settings_bus_get_session_proxy ());
#ifdef HAVE_IBUS
set_legacy_ibus_env_vars (proxy);
#endif
start_settings_manager ();
register_with_gnome_session (proxy);
watch_for_term_signal (manager);
}
static void
name_lost_handler (GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
/* Name was already taken, or the bus went away */
g_warning ("Name taken or bus went away - shutting down");
if (manager != NULL)
stop_manager (manager);
gtk_main_quit ();
}
static void
bus_register (void)
{
GBusNameOwnerFlags flags;
flags = G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT;
if (replace)
flags |= G_BUS_NAME_OWNER_FLAGS_REPLACE;
name_id = g_bus_own_name (G_BUS_TYPE_SESSION,
GSD_DBUS_NAME,
flags,
NULL,
(GBusNameAcquiredCallback) name_acquired_handler,
(GBusNameLostCallback) name_lost_handler,
NULL,
NULL);
}
static void
gsd_log_default_handler (const gchar *log_domain,
GLogLevelFlags log_level,
const gchar *message,
gpointer unused_data)
{
/* filter out DEBUG messages if debug isn't set */
if ((log_level & G_LOG_LEVEL_MASK) == G_LOG_LEVEL_DEBUG
&& ! debug) {
return;
}
g_log_default_handler (log_domain,
log_level,
message,
unused_data);
}
static void
parse_args (int *argc, char ***argv)
{
GError *error;
GOptionContext *context;
gnome_settings_profile_start (NULL);
context = g_option_context_new (NULL);
g_option_context_add_main_entries (context, entries, NULL);
g_option_context_add_group (context, gtk_get_option_group (FALSE));
error = NULL;
if (!g_option_context_parse (context, argc, argv, &error)) {
if (error != NULL) {
g_warning ("%s", error->message);
g_error_free (error);
} else {
g_warning ("Unable to initialize GTK+");
}
exit (EXIT_FAILURE);
}
g_option_context_free (context);
gnome_settings_profile_end (NULL);
if (debug)
g_setenv ("G_MESSAGES_DEBUG", "all", FALSE);
}
int
main (int argc, char *argv[])
{
gnome_settings_profile_start (NULL);
bindtextdomain (GETTEXT_PACKAGE, GNOME_SETTINGS_LOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
setlocale (LC_ALL, "");
parse_args (&argc, &argv);
gnome_settings_profile_start ("opening gtk display");
if (! gtk_init_check (NULL, NULL)) {
g_warning ("Unable to initialize GTK+");
exit (EXIT_FAILURE);
}
gnome_settings_profile_end ("opening gtk display");
g_log_set_default_handler (gsd_log_default_handler, NULL);
notify_init ("gnome-settings-daemon");
bus_register ();
if (do_timed_exit) {
g_timeout_add_seconds (30, (GSourceFunc) timed_exit_cb, NULL);
}
gsd_idle_monitor_init_dbus (replace);
gtk_main ();
g_debug ("Shutting down");
if (name_id > 0) {
g_bus_unown_name (name_id);
name_id = 0;
}
if (manager != NULL) {
g_object_unref (manager);
}
g_debug ("SettingsDaemon finished");
gnome_settings_profile_end (NULL);
return 0;
}
|