openbox/openbox.c (raw)
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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 Ben 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 "event.h" #include "menu.h" #include "client.h" #include "xerror.h" #include "prop.h" #include "screen.h" #include "startupnotify.h" #include "focus.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 "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> RrInstance *ob_rr_inst; RrTheme *ob_rr_theme; ObMainLoop *ob_main_loop; Display *ob_display; gint ob_screen; gboolean ob_replace_wm = 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 gboolean reconfigure_and_exit = FALSE; static void signal_handler(gint signal, gpointer data); static void parse_args(gint argc, gchar **argv); gint main(gint argc, gchar **argv) { #ifdef DEBUG ob_debug_show_output(TRUE); #endif state = OB_STATE_STARTING; /* initialize the locale */ if (!setlocale(LC_ALL, "")) g_warning("Couldn't set locale from environment.\n"); bindtextdomain(PACKAGE_NAME, LOCALEDIR); bind_textdomain_codeset(PACKAGE_NAME, "UTF-8"); textdomain(PACKAGE_NAME); g_set_prgname(argv[0]); if (chdir(g_get_home_dir()) == -1) g_warning("Unable to change to home directory (%s): %s", g_get_home_dir(), g_strerror(errno)); /* parse out command line args */ parse_args(argc, argv); if (!reconfigure_and_exit) { parse_paths_startup(); session_startup(argc, argv); } ob_display = XOpenDisplay(NULL); if (ob_display == NULL) ob_exit_with_error("Failed to open the display."); if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1) ob_exit_with_error("Failed to set display as close-on-exec."); if (reconfigure_and_exit) { guint32 pid; gboolean ret; prop_startup(); /* get atoms values for the display */ ret = PROP_GET32(RootWindow(ob_display, DefaultScreen(ob_display)), openbox_pid, cardinal, &pid); XCloseDisplay(ob_display); if (!ret) { g_print("Openbox does not appear to be running on this " "display.\n"); } else { g_print("Telling the Openbox process # %u to reconfigure.\n", pid); ret = (kill(pid, SIGUSR2) == 0); if (!ret) g_print("Error: %s.\n", strerror(errno)); } exit(ret ? EXIT_SUCCESS : EXIT_FAILURE); } 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 render library."); XSynchronize(ob_display, xsync); /* check for locale support */ if (!XSupportsLocale()) g_warning("X server does not support locale."); if (!XSetLocaleModifiers("")) g_warning("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] = XCreateFontCursor(ob_display, XC_left_ptr); cursors[OB_CURSOR_BUSY] = XCreateFontCursor(ob_display, XC_watch); cursors[OB_CURSOR_MOVE] = XCreateFontCursor(ob_display, XC_fleur); cursors[OB_CURSOR_NORTH] = XCreateFontCursor(ob_display, XC_top_side); cursors[OB_CURSOR_NORTHEAST] = XCreateFontCursor(ob_display, XC_top_right_corner); cursors[OB_CURSOR_EAST] = XCreateFontCursor(ob_display, XC_right_side); cursors[OB_CURSOR_SOUTHEAST] = XCreateFontCursor(ob_display, XC_bottom_right_corner); cursors[OB_CURSOR_SOUTH] = XCreateFontCursor(ob_display, XC_bottom_side); cursors[OB_CURSOR_SOUTHWEST] = XCreateFontCursor(ob_display, XC_bottom_left_corner); cursors[OB_CURSOR_WEST] = XCreateFontCursor(ob_display, XC_left_side); cursors[OB_CURSOR_NORTHWEST] = XCreateFontCursor(ob_display, XC_top_left_corner); /* create available keycodes */ keys[OB_KEY_RETURN] = XKeysymToKeycode(ob_display, XStringToKeysym("Return")); keys[OB_KEY_ESCAPE] = XKeysymToKeycode(ob_display, XStringToKeysym("Escape")); keys[OB_KEY_LEFT] = XKeysymToKeycode(ob_display, XStringToKeysym("Left")); keys[OB_KEY_RIGHT] = XKeysymToKeycode(ob_display, XStringToKeysym("Right")); keys[OB_KEY_UP] = XKeysymToKeycode(ob_display, XStringToKeysym("Up")); keys[OB_KEY_DOWN] = XKeysymToKeycode(ob_display, XStringToKeysym("Down")); prop_startup(); /* get atoms values for the display */ extensions_query_all(); /* find which extensions are present */ if (screen_annex()) { /* it will be ours! */ do { { ObParseInst *i; xmlDocPtr doc; xmlNodePtr node; /* startup the parsing so everything can register sections of the rc */ i = parse_startup(); config_startup(i); /* parse/load user options */ if (parse_load_rc(&doc, &node)) parse_tree(i, doc, node->xmlChildrenNode); /* we're done with parsing now, kill it */ parse_close(doc); parse_shutdown(i); } /* load the theme specified in the rc file */ { RrTheme *theme; if ((theme = RrThemeNew(ob_rr_inst, config_theme))) { RrThemeFree(ob_rr_theme); ob_rr_theme = theme; } if (ob_rr_theme == NULL) ob_exit_with_error("Unable to load a theme."); } 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); window_startup(reconfigure); sn_startup(reconfigure); screen_startup(reconfigure); grab_startup(reconfigure); group_startup(reconfigure); client_startup(reconfigure); dock_startup(reconfigure); moveresize_startup(reconfigure); keyboard_startup(reconfigure); mouse_startup(reconfigure); menu_startup(reconfigure); if (!reconfigure) { /* get all the existing windows */ client_manage_all(); focus_fallback(OB_FOCUS_FALLBACK_NOFOCUS); } 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); /* redraw the frames */ frame_adjust_area(c->frame, TRUE, TRUE, FALSE); } } 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); mouse_shutdown(reconfigure); keyboard_shutdown(reconfigure); moveresize_shutdown(reconfigure); dock_shutdown(reconfigure); client_shutdown(reconfigure); group_shutdown(reconfigure); grab_shutdown(reconfigure); screen_shutdown(reconfigure); focus_shutdown(reconfigure); sn_shutdown(reconfigure); window_shutdown(reconfigure); event_shutdown(reconfigure); config_shutdown(); } while (reconfigure); } XSync(ob_display, FALSE); RrThemeFree(ob_rr_theme); RrInstanceFree(ob_rr_inst); session_shutdown(); 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_warning("failed to execute '%s': %s", restart_path, err->message); g_error_free(err); } } /* re-run me */ execvp(argv[0], argv); /* try how we were run */ execlp(argv[0], g_path_get_basename(argv[0]), (char *)NULL); /* last resort */ } 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) 2006 Mikael Magnusson\n"); g_print("Copyright (c) 2003 Ben 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\n"); g_print("Options:\n\n"); g_print(" --reconfigure Tell the currently running instance of " "Openbox to\n" " reconfigure (and then exit immediately)\n"); #ifdef USE_SM g_print(" --sm-disable Disable connection to session manager\n"); g_print(" --sm-client-id ID Specify session management ID\n"); g_print(" --sm-save-file FILE Specify file to load a saved session" "from\n"); #endif g_print(" --replace Replace the currently running window " "manager\n"); g_print(" --help Display this help and exit\n"); g_print(" --version Display the version and exit\n"); g_print(" --sync Run in synchronous mode (this is slow and " "meant for\n" " debugging X routines)\n"); g_print(" --debug Display debugging output\n"); g_print("\nPlease report bugs at %s\n\n", PACKAGE_BUGREPORT); } 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; } else if (!strcmp(argv[i], "--sync")) { xsync = TRUE; } else if (!strcmp(argv[i], "--debug")) { ob_debug_show_output(TRUE); } else if (!strcmp(argv[i], "--reconfigure")) { reconfigure_and_exit = TRUE; } } } void ob_exit_with_error(gchar *msg) { g_critical(msg); session_shutdown(); 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); } 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; } |