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openbox/openbox/openbox.c
Dana Jansens 83e7a03e3a don't reconfigure twice
2007-06-07 22:34:05 +00:00

664 lines
21 KiB
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/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
openbox.c for the Openbox window manager
Copyright (c) 2006 Mikael Magnusson
Copyright (c) 2003-2007 Dana Jansens
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.
See the COPYING file for a copy of the GNU General Public License.
*/
#include "debug.h"
#include "openbox.h"
#include "session.h"
#include "dock.h"
#include "modkeys.h"
#include "event.h"
#include "menu.h"
#include "client.h"
#include "xerror.h"
#include "prop.h"
#include "screen.h"
#include "startupnotify.h"
#include "focus.h"
#include "focus_cycle.h"
#include "focus_cycle_indicator.h"
#include "focus_cycle_popup.h"
#include "moveresize.h"
#include "frame.h"
#include "keyboard.h"
#include "mouse.h"
#include "extensions.h"
#include "menuframe.h"
#include "grab.h"
#include "group.h"
#include "propwin.h"
#include "config.h"
#include "mainloop.h"
#include "gettext.h"
#include "parser/parse.h"
#include "render/render.h"
#include "render/theme.h"
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif
#ifdef HAVE_SIGNAL_H
# include <signal.h>
#endif
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif
#ifdef HAVE_LOCALE_H
# include <locale.h>
#endif
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_WAIT_H
# include <sys/types.h>
# include <sys/wait.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <errno.h>
#include <X11/cursorfont.h>
#if USE_XCURSOR
#include <X11/Xcursor/Xcursor.h>
#endif
#include <X11/Xlib.h>
#include <X11/keysym.h>
RrInstance *ob_rr_inst;
RrTheme *ob_rr_theme;
ObMainLoop *ob_main_loop;
Display *ob_display;
gint ob_screen;
gboolean ob_replace_wm = FALSE;
gboolean ob_sm_use = TRUE;
gchar *ob_sm_id = NULL;
gchar *ob_sm_save_file = NULL;
gboolean ob_sm_restore = TRUE;
gboolean ob_debug_xinerama = FALSE;
static ObState state;
static gboolean xsync = FALSE;
static gboolean reconfigure = FALSE;
static gboolean restart = FALSE;
static gchar *restart_path = NULL;
static Cursor cursors[OB_NUM_CURSORS];
static KeyCode keys[OB_NUM_KEYS];
static gint exitcode = 0;
static guint remote_control = 0;
static gboolean being_replaced = FALSE;
static void signal_handler(gint signal, gpointer data);
static void remove_args(gint *argc, gchar **argv, gint index, gint num);
static void parse_env();
static void parse_args(gint *argc, gchar **argv);
static Cursor load_cursor(const gchar *name, guint fontval);
gint main(gint argc, gchar **argv)
{
gchar *program_name;
state = OB_STATE_STARTING;
/* initialize the locale */
if (!setlocale(LC_ALL, ""))
g_message("Couldn't set locale from environment.");
bindtextdomain(PACKAGE_NAME, LOCALEDIR);
bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
textdomain(PACKAGE_NAME);
if (chdir(g_get_home_dir()) == -1)
g_message(_("Unable to change to home directory '%s': %s"),
g_get_home_dir(), g_strerror(errno));
/* parse the command line args, which can change the argv[0] */
parse_args(&argc, argv);
/* parse the environment variables */
parse_env();
program_name = g_path_get_basename(argv[0]);
g_set_prgname(program_name);
if (!remote_control) {
parse_paths_startup();
session_startup(argc, argv);
}
ob_display = XOpenDisplay(NULL);
if (ob_display == NULL)
ob_exit_with_error(_("Failed to open the display from the DISPLAY environment variable."));
if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
ob_exit_with_error("Failed to set display as close-on-exec");
if (remote_control) {
prop_startup();
/* Send client message telling the OB process to:
* remote_control = 1 -> reconfigure
* remote_control = 2 -> restart */
PROP_MSG(RootWindow(ob_display, ob_screen),
ob_control, remote_control, 0, 0, 0);
XCloseDisplay(ob_display);
exit(EXIT_SUCCESS);
}
ob_main_loop = ob_main_loop_new(ob_display);
/* set up signal handler */
ob_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL, NULL);
ob_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL, NULL);
ob_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL, NULL);
ob_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL, NULL);
ob_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL, NULL);
ob_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL, NULL);
ob_main_loop_signal_add(ob_main_loop, SIGCHLD, signal_handler, NULL, NULL);
ob_screen = DefaultScreen(ob_display);
ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
if (ob_rr_inst == NULL)
ob_exit_with_error(_("Failed to initialize the obrender library."));
XSynchronize(ob_display, xsync);
/* check for locale support */
if (!XSupportsLocale())
g_message(_("X server does not support locale."));
if (!XSetLocaleModifiers(""))
g_message(_("Cannot set locale modifiers for the X server."));
/* set our error handler */
XSetErrorHandler(xerror_handler);
/* set the DISPLAY environment variable for any lauched children, to the
display we're using, so they open in the right place. */
putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
/* create available cursors */
cursors[OB_CURSOR_NONE] = None;
cursors[OB_CURSOR_POINTER] = load_cursor("left_ptr", XC_left_ptr);
cursors[OB_CURSOR_BUSYPOINTER] = load_cursor("left_ptr_watch",XC_left_ptr);
cursors[OB_CURSOR_BUSY] = load_cursor("watch", XC_watch);
cursors[OB_CURSOR_MOVE] = load_cursor("fleur", XC_fleur);
cursors[OB_CURSOR_NORTH] = load_cursor("top_side", XC_top_side);
cursors[OB_CURSOR_NORTHEAST] = load_cursor("top_right_corner",
XC_top_right_corner);
cursors[OB_CURSOR_EAST] = load_cursor("right_side", XC_right_side);
cursors[OB_CURSOR_SOUTHEAST] = load_cursor("bottom_right_corner",
XC_bottom_right_corner);
cursors[OB_CURSOR_SOUTH] = load_cursor("bottom_side", XC_bottom_side);
cursors[OB_CURSOR_SOUTHWEST] = load_cursor("bottom_left_corner",
XC_bottom_left_corner);
cursors[OB_CURSOR_WEST] = load_cursor("left_side", XC_left_side);
cursors[OB_CURSOR_NORTHWEST] = load_cursor("top_left_corner",
XC_top_left_corner);
prop_startup(); /* get atoms values for the display */
extensions_query_all(); /* find which extensions are present */
if (screen_annex()) { /* it will be ours! */
do {
modkeys_startup(reconfigure);
/* get the keycodes for keys we use */
keys[OB_KEY_RETURN] = modkeys_sym_to_code(XK_Return);
keys[OB_KEY_ESCAPE] = modkeys_sym_to_code(XK_Escape);
keys[OB_KEY_LEFT] = modkeys_sym_to_code(XK_Left);
keys[OB_KEY_RIGHT] = modkeys_sym_to_code(XK_Right);
keys[OB_KEY_UP] = modkeys_sym_to_code(XK_Up);
keys[OB_KEY_DOWN] = modkeys_sym_to_code(XK_Down);
{
ObParseInst *i;
xmlDocPtr doc;
xmlNodePtr node;
/* startup the parsing so everything can register sections
of the rc */
i = parse_startup();
/* start up config which sets up with the parser */
config_startup(i);
/* parse/load user options */
if (parse_load_rc(NULL, &doc, &node)) {
parse_tree(i, doc, node->xmlChildrenNode);
parse_close(doc);
} else
g_message(_("Unable to find a valid config file, using some simple defaults"));
/*
if (config_type != NULL)
PROP_SETS(RootWindow(ob_display, ob_screen),
ob_config, config_type);
*/
/* we're done with parsing now, kill it */
parse_shutdown(i);
}
/* load the theme specified in the rc file */
{
RrTheme *theme;
if ((theme = RrThemeNew(ob_rr_inst, config_theme, TRUE,
config_font_activewindow,
config_font_inactivewindow,
config_font_menutitle,
config_font_menuitem,
config_font_osd)))
{
RrThemeFree(ob_rr_theme);
ob_rr_theme = theme;
}
if (ob_rr_theme == NULL)
ob_exit_with_error(_("Unable to load a theme."));
PROP_SETS(RootWindow(ob_display, ob_screen),
ob_theme, ob_rr_theme->name);
}
if (reconfigure) {
GList *it;
/* update all existing windows for the new theme */
for (it = client_list; it; it = g_list_next(it)) {
ObClient *c = it->data;
frame_adjust_theme(c->frame);
}
}
event_startup(reconfigure);
/* focus_backup is used for stacking, so this needs to come before
anything that calls stacking_add */
focus_startup(reconfigure);
focus_cycle_startup(reconfigure);
focus_cycle_indicator_startup(reconfigure);
focus_cycle_popup_startup(reconfigure);
window_startup(reconfigure);
sn_startup(reconfigure);
screen_startup(reconfigure);
grab_startup(reconfigure);
propwin_startup(reconfigure);
group_startup(reconfigure);
client_startup(reconfigure);
dock_startup(reconfigure);
moveresize_startup(reconfigure);
keyboard_startup(reconfigure);
mouse_startup(reconfigure);
menu_frame_startup(reconfigure);
menu_startup(reconfigure);
if (!reconfigure) {
guint32 xid;
ObWindow *w;
/* get all the existing windows */
client_manage_all();
focus_nothing();
/* focus what was focused if a wm was already running */
if (PROP_GET32(RootWindow(ob_display, ob_screen),
net_active_window, window, &xid) &&
(w = g_hash_table_lookup(window_map, &xid)) &&
WINDOW_IS_CLIENT(w))
{
client_focus(WINDOW_AS_CLIENT(w));
}
} else {
GList *it;
/* redecorate all existing windows */
for (it = client_list; it; it = g_list_next(it)) {
ObClient *c = it->data;
/* the new config can change the window's decorations */
client_setup_decor_and_functions(c, FALSE);
/* redraw the frames */
frame_adjust_area(c->frame, TRUE, TRUE, FALSE);
/* the decor sizes may have changed, so the windows may
end up in new positions */
client_reconfigure(c);
}
}
reconfigure = FALSE;
state = OB_STATE_RUNNING;
ob_main_loop_run(ob_main_loop);
state = OB_STATE_EXITING;
if (!reconfigure) {
dock_remove_all();
client_unmanage_all();
}
menu_shutdown(reconfigure);
menu_frame_shutdown(reconfigure);
mouse_shutdown(reconfigure);
keyboard_shutdown(reconfigure);
moveresize_shutdown(reconfigure);
dock_shutdown(reconfigure);
client_shutdown(reconfigure);
group_shutdown(reconfigure);
propwin_shutdown(reconfigure);
grab_shutdown(reconfigure);
screen_shutdown(reconfigure);
focus_cycle_popup_shutdown(reconfigure);
focus_cycle_indicator_shutdown(reconfigure);
focus_cycle_shutdown(reconfigure);
focus_shutdown(reconfigure);
sn_shutdown(reconfigure);
window_shutdown(reconfigure);
event_shutdown(reconfigure);
config_shutdown();
modkeys_shutdown(reconfigure);
} while (reconfigure);
}
XSync(ob_display, FALSE);
RrThemeFree(ob_rr_theme);
RrInstanceFree(ob_rr_inst);
session_shutdown(being_replaced);
XCloseDisplay(ob_display);
parse_paths_shutdown();
if (restart) {
if (restart_path != NULL) {
gint argcp;
gchar **argvp;
GError *err = NULL;
/* run other window manager */
if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
execvp(argvp[0], argvp);
g_strfreev(argvp);
} else {
g_message(
_("Restart failed to execute new executable '%s': %s"),
restart_path, err->message);
g_error_free(err);
}
}
/* we remove the session arguments from argv, so put them back,
also don't restore the session on restart */
if (ob_sm_save_file != NULL || ob_sm_id != NULL) {
gchar **nargv;
gint i, l;
l = argc + 1 +
(ob_sm_save_file != NULL ? 2 : 0) +
(ob_sm_id != NULL ? 2 : 0);
nargv = g_new0(gchar*, l+1);
for (i = 0; i < argc; ++i)
nargv[i] = argv[i];
if (ob_sm_save_file != NULL) {
nargv[i++] = g_strdup("--sm-save-file");
nargv[i++] = ob_sm_save_file;
}
if (ob_sm_id != NULL) {
nargv[i++] = g_strdup("--sm-client-id");
nargv[i++] = ob_sm_id;
}
nargv[i++] = g_strdup("--sm-no-load");
g_assert(i == l);
argv = nargv;
}
/* re-run me */
execvp(argv[0], argv); /* try how we were run */
execlp(argv[0], program_name, (gchar*)NULL); /* last resort */
}
/* free stuff passed in from the command line or environment */
g_free(ob_sm_save_file);
g_free(ob_sm_id);
g_free(program_name);
return exitcode;
}
static void signal_handler(gint signal, gpointer data)
{
switch (signal) {
case SIGUSR1:
ob_debug("Caught signal %d. Restarting.\n", signal);
ob_restart();
break;
case SIGUSR2:
ob_debug("Caught signal %d. Reconfiguring.\n", signal);
ob_reconfigure();
break;
case SIGCHLD:
/* reap children */
while (waitpid(-1, NULL, WNOHANG) > 0);
break;
default:
ob_debug("Caught signal %d. Exiting.\n", signal);
/* TERM and INT return a 0 code */
ob_exit(!(signal == SIGTERM || signal == SIGINT));
}
}
static void print_version()
{
g_print("Openbox %s\n", PACKAGE_VERSION);
g_print(_("Copyright (c)"));
g_print(" 2007 Mikael Magnusson\n");
g_print(_("Copyright (c)"));
g_print(" 2003-2007 Dana Jansens\n\n");
g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
g_print("This is free software, and you are welcome to redistribute it\n");
g_print("under certain conditions. See the file COPYING for details.\n\n");
}
static void print_help()
{
g_print(_("Syntax: openbox [options]\n"));
g_print(_("\nOptions:\n"));
g_print(_(" --help Display this help and exit\n"));
g_print(_(" --version Display the version and exit\n"));
g_print(_(" --replace Replace the currently running window manager\n"));
g_print(_(" --sm-disable Disable connection to the session manager\n"));
g_print(_("\nPassing messages to a running Openbox instance:\n"));
g_print(_(" --reconfigure Reload Openbox's configuration\n"));
g_print(_(" --restart Restart Openbox\n"));
g_print(_("\nDebugging options:\n"));
g_print(_(" --sync Run in synchronous mode\n"));
g_print(_(" --debug Display debugging output\n"));
g_print(_(" --debug-focus Display debugging output for focus handling\n"));
g_print(_(" --debug-xinerama Split the display into fake xinerama screens\n"));
g_print(_("\nPlease report bugs at %s\n"), PACKAGE_BUGREPORT);
}
static void remove_args(gint *argc, gchar **argv, gint index, gint num)
{
gint i;
for (i = index; i < *argc - num; ++i)
argv[i] = argv[i+num];
for (; i < *argc; ++i)
argv[i] = NULL;
*argc -= num;
}
static void parse_env()
{
/* unset this so we don't pass it on unknowingly */
unsetenv("DESKTOP_STARTUP_ID");
}
static void parse_args(gint *argc, gchar **argv)
{
gint i;
for (i = 1; i < *argc; ++i) {
if (!strcmp(argv[i], "--version")) {
print_version();
exit(0);
}
else if (!strcmp(argv[i], "--help")) {
print_help();
exit(0);
}
else if (!strcmp(argv[i], "--g-fatal-warnings")) {
g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
}
else if (!strcmp(argv[i], "--replace")) {
ob_replace_wm = TRUE;
remove_args(argc, argv, i, 1);
--i; /* this arg was removed so go back */
}
else if (!strcmp(argv[i], "--sync")) {
xsync = TRUE;
}
else if (!strcmp(argv[i], "--debug")) {
ob_debug_show_output(TRUE);
ob_debug_enable(OB_DEBUG_SM, TRUE);
ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
}
else if (!strcmp(argv[i], "--debug-focus")) {
ob_debug_show_output(TRUE);
ob_debug_enable(OB_DEBUG_SM, TRUE);
ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
ob_debug_enable(OB_DEBUG_FOCUS, TRUE);
}
else if (!strcmp(argv[i], "--debug-xinerama")) {
ob_debug_xinerama = TRUE;
}
else if (!strcmp(argv[i], "--reconfigure")) {
remote_control = 1;
} else if (!strcmp(argv[i], "--restart")) {
remote_control = 2;
}
else if (!strcmp(argv[i], "--sm-save-file")) {
if (i == *argc - 1) /* no args left */
/* not translated cuz it's sekret */
g_printerr("--sm-save-file requires an argument\n");
else {
ob_sm_save_file = g_strdup(argv[i+1]);
remove_args(argc, argv, i, 2);
--i; /* this arg was removed so go back */
ob_debug_type(OB_DEBUG_SM, "--sm-save-file %s\n",
ob_sm_save_file);
}
}
else if (!strcmp(argv[i], "--sm-client-id")) {
if (i == *argc - 1) /* no args left */
/* not translated cuz it's sekret */
g_printerr("--sm-client-id requires an argument\n");
else {
ob_sm_id = g_strdup(argv[i+1]);
remove_args(argc, argv, i, 2);
--i; /* this arg was removed so go back */
ob_debug_type(OB_DEBUG_SM, "--sm-client-id %s\n", ob_sm_id);
}
}
else if (!strcmp(argv[i], "--sm-disable")) {
ob_sm_use = FALSE;
}
else if (!strcmp(argv[i], "--sm-no-load")) {
ob_sm_restore = FALSE;
remove_args(argc, argv, i, 1);
--i; /* this arg was removed so go back */
}
else {
/* this is a memleak.. oh well.. heh */
gchar *err = g_strdup_printf
(_("Invalid command line argument '%s'\n"), argv[i]);
ob_exit_with_error(err);
}
}
}
static Cursor load_cursor(const gchar *name, guint fontval)
{
Cursor c = None;
#if USE_XCURSOR
c = XcursorLibraryLoadCursor(ob_display, name);
#endif
if (c == None)
c = XCreateFontCursor(ob_display, fontval);
return c;
}
void ob_exit_with_error(const gchar *msg)
{
g_message(msg);
session_shutdown(TRUE);
exit(EXIT_FAILURE);
}
void ob_restart_other(const gchar *path)
{
restart_path = g_strdup(path);
ob_restart();
}
void ob_restart()
{
restart = TRUE;
ob_exit(0);
}
void ob_reconfigure()
{
reconfigure = TRUE;
ob_exit(0);
}
void ob_exit(gint code)
{
exitcode = code;
ob_main_loop_exit(ob_main_loop);
}
void ob_exit_replace()
{
exitcode = 0;
being_replaced = TRUE;
ob_main_loop_exit(ob_main_loop);
}
Cursor ob_cursor(ObCursor cursor)
{
g_assert(cursor < OB_NUM_CURSORS);
return cursors[cursor];
}
KeyCode ob_keycode(ObKey key)
{
g_assert(key < OB_NUM_KEYS);
return keys[key];
}
ObState ob_state()
{
return state;
}
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