/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Metacity main() */
/*
* Copyright (C) 2001 Havoc Pennington
* Copyright (C) 2006 Elijah Newren
*
* 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 "main.h"
#include "util.h"
#include "display.h"
#include "errors.h"
#include "ui.h"
#include "session.h"
#include "prefs.h"
#include <glib-object.h>
#include <stdlib.h>
#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>
#include <time.h>
static MetaExitCode meta_exit_code = META_EXIT_SUCCESS;
static GMainLoop *meta_main_loop = NULL;
static gboolean meta_restart_after_quit = FALSE;
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);
meta_print_backtrace ();
}
static void
version (void)
{
g_print (_("metacity %s\n"
"Copyright (C) 2001-2007 Havoc Pennington, Red Hat, Inc., and others\n"
"This is free software; see the source for copying conditions.\n"
"There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"),
VERSION);
exit (0);
}
static void
meta_print_compilation_info (void)
{
#ifdef HAVE_SHAPE
meta_verbose ("Compiled with shape extension\n");
#else
meta_verbose ("Compiled without shape extension\n");
#endif
#ifdef HAVE_XINERAMA
meta_topic (META_DEBUG_XINERAMA, "Compiled with Xinerama extension\n");
#else
meta_topic (META_DEBUG_XINERAMA, "Compiled without Xinerama extension\n");
#endif
#ifdef HAVE_XFREE_XINERAMA
meta_topic (META_DEBUG_XINERAMA, " (using XFree86 Xinerama)\n");
#else
meta_topic (META_DEBUG_XINERAMA, " (not using XFree86 Xinerama)\n");
#endif
#ifdef HAVE_SOLARIS_XINERAMA
meta_topic (META_DEBUG_XINERAMA, " (using Solaris Xinerama)\n");
#else
meta_topic (META_DEBUG_XINERAMA, " (not using Solaris Xinerama)\n");
#endif
#ifdef HAVE_XSYNC
meta_verbose ("Compiled with sync extension\n");
#else
meta_verbose ("Compiled without sync extension\n");
#endif
#ifdef HAVE_RANDR
meta_verbose ("Compiled with randr extension\n");
#else
meta_verbose ("Compiled without randr extension\n");
#endif
#ifdef HAVE_STARTUP_NOTIFICATION
meta_verbose ("Compiled with startup notification\n");
#else
meta_verbose ("Compiled without startup notification\n");
#endif
#ifdef HAVE_COMPOSITE_EXTENSIONS
meta_verbose ("Compiled with composite extensions\n");
#else
meta_verbose ("Compiled without composite extensions\n");
#endif
}
static void
meta_print_self_identity (void)
{
char buf[256];
GDate d;
const char *charset;
/* Version and current date. */
g_date_clear (&d, 1);
g_date_set_time_t (&d, time (NULL));
g_date_strftime (buf, sizeof (buf), "%x", &d);
meta_verbose ("Metacity version %s running on %s\n",
VERSION, buf);
/* Locale and encoding. */
g_get_charset (&charset);
meta_verbose ("Running in locale \"%s\" with encoding \"%s\"\n",
setlocale (LC_ALL, NULL), charset);
/* Compilation settings. */
meta_print_compilation_info ();
}
typedef struct
{
gchar *save_file;
gchar *display_name;
gchar *client_id;
gboolean replace_wm;
gboolean disable_sm;
gboolean print_version;
} MetaArguments;
/**
* meta_parse_options() parses argc and argv and returns the
* arguments that Metacity understands in struct
* MetaArguments. In meta_args.
*
* The strange call signature has to be written like it is so
* that g_option_context_parse() gets a chance to modify argc and
* argv.
**/
static void
meta_parse_options (int *argc, char ***argv,
MetaArguments *meta_args)
{
MetaArguments my_args = {NULL, NULL, NULL, FALSE, FALSE, FALSE};
GOptionEntry options[] = {
{
"sm-disable", 0, 0, G_OPTION_ARG_NONE,
&my_args.disable_sm,
N_("Disable connection to session manager"),
NULL
},
{
"replace", 0, 0, G_OPTION_ARG_NONE,
&my_args.replace_wm,
N_("Replace the running window manager with Metacity"),
NULL
},
{
"sm-client-id", 0, 0, G_OPTION_ARG_STRING,
&my_args.client_id,
N_("Specify session management ID"),
"ID"
},
{
"display", 0, 0, G_OPTION_ARG_STRING,
&my_args.display_name, N_("X Display to use"),
"DISPLAY"
},
{
"sm-save-file", 0, 0, G_OPTION_ARG_FILENAME,
&my_args.save_file,
N_("Initialize session from savefile"),
"FILE"
},
{
"version", 0, 0, G_OPTION_ARG_NONE,
&my_args.print_version,
N_("Print version"),
NULL
},
{NULL}
};
GOptionContext *ctx;
GError *error = NULL;
ctx = g_option_context_new (NULL);
g_option_context_add_main_entries (ctx, options, "metacity");
if (!g_option_context_parse (ctx, argc, argv, &error))
{
g_print ("metacity: %s\n", error->message);
exit(1);
}
g_option_context_free (ctx);
/* Return the parsed options through the meta_args param. */
*meta_args = my_args;
}
/**
* meta_select_display() is a helper function that selects
* which display Metacity should use. It first tries to use
* display_name as the display. If display_name is NULL then
* try to use the environment variable METACITY_DISPLAY. If that
* also is NULL, use the default - :0.0
*/
static
void meta_select_display (gchar *display_name)
{
gchar *envVar = "";
if (display_name)
envVar = g_strconcat ("DISPLAY=", display_name, NULL);
else if (g_getenv ("METACITY_DISPLAY"))
envVar = g_strconcat ("DISPLAY=",
g_getenv ("METACITY_DISPLAY"), NULL);
/* DO NOT FREE envVar, putenv() sucks */
putenv (envVar);
}
int
main (int argc, char **argv)
{
struct sigaction act;
sigset_t empty_mask;
MetaArguments meta_args;
if (setlocale (LC_ALL, "") == NULL)
meta_warning ("Locale not understood by C library, internationalization will not work\n");
sigemptyset (&empty_mask);
act.sa_handler = SIG_IGN;
act.sa_mask = empty_mask;
act.sa_flags = 0;
if (sigaction (SIGPIPE, &act, NULL) < 0)
g_printerr ("Failed to register SIGPIPE handler: %s\n",
g_strerror (errno));
#ifdef SIGXFSZ
if (sigaction (SIGXFSZ, &act, NULL) < 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);
meta_set_syncing (g_getenv ("METACITY_SYNC") != NULL);
if (g_get_home_dir ())
chdir (g_get_home_dir ());
meta_print_self_identity ();
bindtextdomain (GETTEXT_PACKAGE, METACITY_LOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
/* Parse command line arguments.*/
meta_parse_options (&argc, &argv, &meta_args);
if (meta_args.print_version)
version ();
meta_select_display (meta_args.display_name);
if (meta_args.replace_wm)
meta_set_replace_current_wm (TRUE);
if (meta_args.save_file && meta_args.client_id)
meta_fatal ("Can't specify both SM save file and SM client id\n");
meta_main_loop = g_main_loop_new (NULL, FALSE);
g_type_init ();
meta_ui_init (&argc, &argv);
/* must be after UI init so we can override GDK handlers */
meta_errors_init ();
/* Load prefs */
meta_prefs_init ();
meta_prefs_add_listener (prefs_changed_callback, NULL);
#if 1
g_log_set_handler (NULL,
G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL | G_LOG_FLAG_RECURSION,
log_handler, NULL);
g_log_set_handler (G_LOG_DOMAIN,
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 to find some theme that'll work if the theme preference
* doesn't exist. First try Simple (the default theme) then just
* try anything in the themes directory.
*/
if (!meta_ui_have_a_theme ())
meta_ui_set_current_theme ("Simple", FALSE);
if (!meta_ui_have_a_theme ())
{
const char *dir_entry = NULL;
GError *err = NULL;
GDir *themes_dir = NULL;
if (!(themes_dir = g_dir_open (METACITY_DATADIR"/themes", 0, &err)))
{
meta_fatal (_("Failed to scan themes directory: %s\n"), err->message);
g_error_free (err);
}
else
{
while (((dir_entry = g_dir_read_name (themes_dir)) != NULL) &&
(!meta_ui_have_a_theme ()))
{
meta_ui_set_current_theme (dir_entry, FALSE);
}
g_dir_close (themes_dir);
}
}
if (!meta_ui_have_a_theme ())
meta_fatal (_("Could not find a theme! Be sure %s exists and contains the usual themes.\n"),
METACITY_DATADIR"/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 (!meta_args.disable_sm)
meta_session_init (meta_args.client_id, meta_args.save_file);
/* Free memory possibly allocated by the argument parsing which are
* no longer needed.
*/
if (meta_args.save_file)
g_free (meta_args.save_file);
if (meta_args.display_name)
g_free (meta_args.display_name);
if (meta_args.client_id)
g_free (meta_args.client_id);
if (!meta_display_open ())
meta_exit (META_EXIT_ERROR);
g_main_loop_run (meta_main_loop);
{
GSList *displays;
GSList *tmp;
/* we need a copy since closing the display removes it
* from the list
*/
displays = g_slist_copy (meta_displays_list ());
tmp = displays;
while (tmp != NULL)
{
guint32 timestamp;
timestamp = CurrentTime; /* I doubt correct timestamps matter here */
meta_display_close (tmp->data, timestamp);
tmp = tmp->next;
}
g_slist_free (displays);
}
meta_session_shutdown ();
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;
}
}
return meta_exit_code;
}
GMainLoop*
meta_get_main_loop (void)
{
return meta_main_loop;
}
void
meta_quit (MetaExitCode code)
{
meta_exit_code = code;
if (g_main_loop_is_running (meta_main_loop))
g_main_loop_quit (meta_main_loop);
}
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;
case META_PREF_CURSOR_THEME:
case META_PREF_CURSOR_SIZE:
meta_display_set_cursor_theme (meta_prefs_get_cursor_theme (),
meta_prefs_get_cursor_size ());
break;
default:
/* handled elsewhere or otherwise */
break;
}
}
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