mutter/src/main.c

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/* Metacity main() */
/*
* Copyright (C) 2001 Havoc Pennington
*
* 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>
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#include "main.h"
#include "util.h"
#include "display.h"
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#include "errors.h"
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#include "ui.h"
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#include "session.h"
#include "prefs.h"
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#include <glib-object.h>
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#include <stdlib.h>
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#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <locale.h>
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static MetaExitCode meta_exit_code = META_EXIT_SUCCESS;
static GMainLoop *meta_main_loop = NULL;
static gboolean meta_restart_after_quit = FALSE;
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static void prefs_changed_callback (MetaPreference pref,
gpointer data);
static void
log_handler (const gchar *log_domain,
GLogLevelFlags log_level,
const gchar *message,
gpointer user_data)
{
meta_warning ("Log level %d: %s\n", log_level, message);
}
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static void
usage (void)
{
g_print ("metacity [--disable-sm] [--sm-save-file=FILENAME] [--display=DISPLAY]\n");
exit (1);
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}
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int
main (int argc, char **argv)
{
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struct sigaction act;
sigset_t empty_mask;
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char *display_name;
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int i;
const char *client_id;
gboolean disable_sm;
const char *prev_arg;
const char *save_file;
g_set_prgname (argv[0]);
if (setlocale (LC_ALL, "") == NULL)
meta_warning ("Locale not understood by C library, internationalization will not work\n");
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sigemptyset (&empty_mask);
act.sa_handler = SIG_IGN;
act.sa_mask = empty_mask;
act.sa_flags = 0;
if (sigaction (SIGPIPE, &act, 0) < 0)
g_printerr ("Failed to register SIGPIPE handler: %s\n",
g_strerror (errno));
#ifdef SIGXFSZ
if (sigaction (SIGXFSZ, &act, 0) < 0)
g_printerr ("Failed to register SIGXFSZ handler: %s\n",
g_strerror (errno));
#endif
if (g_getenv ("METACITY_VERBOSE"))
meta_set_verbose (TRUE);
if (g_getenv ("METACITY_DEBUG"))
meta_set_debugging (TRUE);
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meta_set_syncing (g_getenv ("METACITY_SYNC") != NULL);
{
const char *charset;
g_get_charset (&charset);
meta_verbose ("Running in locale \"%s\" with encoding \"%s\"\n",
setlocale (LC_ALL, NULL), charset);
}
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bindtextdomain (GETTEXT_PACKAGE, METACITY_LOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
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/* Parse options lamely */
display_name = NULL;
client_id = NULL;
save_file = NULL;
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disable_sm = FALSE;
prev_arg = NULL;
i = 1;
while (i < argc)
{
const char *arg = argv[i];
if (strcmp (arg, "--help") == 0 ||
strcmp (arg, "-h") == 0 ||
strcmp (arg, "-?") == 0)
usage ();
else if (strcmp (arg, "--sm-disable") == 0)
disable_sm = TRUE;
else if (strstr (arg, "--display=") == arg)
{
const char *disp;
if (display_name != NULL)
meta_fatal ("Can't specify display twice\n");
disp = strchr (arg, '=');
++disp;
display_name =
g_strconcat ("DISPLAY=", disp, NULL);
}
else if (prev_arg &&
strcmp (prev_arg, "--display") == 0)
{
if (display_name != NULL)
meta_fatal ("Can't specify display twice\n");
display_name = g_strconcat ("DISPLAY=", arg, NULL);
}
else if (strcmp (arg, "--display") == 0)
; /* wait for next arg */
else if (strstr (arg, "--sm-client-id=") == arg)
{
const char *id;
if (client_id)
meta_fatal ("Can't specify client ID twice\n");
id = strchr (arg, '=');
++id;
client_id = g_strdup (id);
}
else if (prev_arg &&
strcmp (prev_arg, "--sm-client-id") == 0)
{
if (client_id)
meta_fatal ("Can't specify client ID twice\n");
client_id = g_strdup (arg);
}
else if (strcmp (arg, "--sm-client-id") == 0)
; /* wait for next arg */
else if (strstr (arg, "--sm-save-file=") == arg)
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{
const char *file;
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if (save_file)
meta_fatal ("Can't specify SM save file twice\n");
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file = strchr (arg, '=');
++file;
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save_file = g_strdup (file);
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}
else if (prev_arg &&
strcmp (prev_arg, "--sm-save-file") == 0)
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{
if (save_file)
meta_fatal ("Can't specify SM save file twice\n");
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save_file = g_strdup (arg);
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}
else if (strcmp (arg, "--sm-save-file") == 0)
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; /* wait for next arg */
else
usage ();
prev_arg = arg;
++i;
}
if (save_file && client_id)
meta_fatal ("Can't specify both SM save file and SM client id\n");
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meta_main_loop = g_main_loop_new (NULL, FALSE);
if (display_name == NULL &&
g_getenv ("METACITY_DISPLAY"))
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{
meta_verbose ("Using METACITY_DISPLAY %s\n",
g_getenv ("METACITY_DISPLAY"));
display_name =
g_strconcat ("DISPLAY=", g_getenv ("METACITY_DISPLAY"), NULL);
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}
if (display_name)
{
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putenv (display_name);
/* DO NOT FREE display_name, putenv() sucks */
}
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g_type_init ();
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#ifdef HAVE_SHAPE
meta_verbose ("Compiled with shape extension\n");
#else
meta_verbose ("Compiled without shape extension\n");
#endif
#ifdef HAVE_XINERAMA
meta_verbose ("Compiled with Xinerama extension\n");
#else
meta_verbose ("Compiled without Xinerama extension\n");
#endif
/* Load prefs */
meta_prefs_init ();
meta_prefs_add_listener (prefs_changed_callback, NULL);
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meta_ui_init (&argc, &argv);
/* must be after UI init so we can override GDK handlers */
meta_errors_init ();
#if 0
g_log_set_handler (NULL,
G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL | G_LOG_FLAG_RECURSION,
log_handler, NULL);
g_log_set_handler ("Gtk",
G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL | G_LOG_FLAG_RECURSION,
log_handler, NULL);
g_log_set_handler ("Gdk",
G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL | G_LOG_FLAG_RECURSION,
log_handler, NULL);
g_log_set_handler ("GLib",
G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL | G_LOG_FLAG_RECURSION,
log_handler, NULL);
g_log_set_handler ("Pango",
G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL | G_LOG_FLAG_RECURSION,
log_handler, NULL);
g_log_set_handler ("GLib-GObject",
G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL | G_LOG_FLAG_RECURSION,
log_handler, NULL);
g_log_set_handler ("GThread",
G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL | G_LOG_FLAG_RECURSION,
log_handler, NULL);
#endif
if (g_getenv ("METACITY_G_FATAL_WARNINGS") != NULL)
g_log_set_always_fatal (G_LOG_LEVEL_MASK);
meta_ui_set_current_theme (meta_prefs_get_theme (), FALSE);
/* Try some panic stuff, this is lame but we really
* don't want users to lose their WM :-/
*/
if (!meta_ui_have_a_theme ())
meta_ui_set_current_theme ("Atlanta", FALSE);
if (!meta_ui_have_a_theme ())
meta_ui_set_current_theme ("Crux", FALSE);
if (!meta_ui_have_a_theme ())
meta_fatal (_("Could not find a theme! Be sure %s exits and contains the usual themes."),
METACITY_PKGDATADIR"/themes");
/* Connect to SM as late as possible - but before managing display,
* or we might try to manage a window before we have the session
* info
*/
if (!disable_sm)
meta_session_init (client_id, save_file);
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if (!meta_display_open (NULL))
meta_exit (META_EXIT_ERROR);
g_main_run (meta_main_loop);
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{
GSList *displays;
GSList *tmp;
/* we need a copy since closing the display removes it
* from the list
*/
displays = g_slist_copy (meta_displays_list ());
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tmp = displays;
while (tmp != NULL)
{
meta_display_close (tmp->data);
tmp = tmp->next;
}
g_slist_free (displays);
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}
if (meta_restart_after_quit)
{
GError *err;
err = NULL;
if (!g_spawn_async (NULL,
argv,
NULL,
G_SPAWN_SEARCH_PATH,
NULL,
NULL,
NULL,
&err))
{
meta_fatal (_("Failed to restart: %s\n"),
err->message);
g_error_free (err); /* not reached anyhow */
meta_exit_code = META_EXIT_ERROR;
}
}
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return meta_exit_code;
}
GMainLoop*
meta_get_main_loop (void)
{
return meta_main_loop;
}
void
meta_quit (MetaExitCode code)
{
meta_exit_code = code;
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if (g_main_is_running (meta_main_loop))
g_main_quit (meta_main_loop);
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}
void
meta_restart (void)
{
meta_restart_after_quit = TRUE;
meta_quit (META_EXIT_SUCCESS);
}
static void
prefs_changed_callback (MetaPreference pref,
gpointer data)
{
switch (pref)
{
case META_PREF_THEME:
meta_ui_set_current_theme (meta_prefs_get_theme (), FALSE);
meta_display_retheme_all ();
break;
default:
/* handled elsewhere or otherwise */
break;
}
}