Dogcows Code - chaz/openbox/blob - openbox/openbox.c

   1 #include "debug.h"
   2 #include "openbox.h"
   3 #include "session.h"
   4 #include "dock.h"
   5 #include "event.h"
   6 #include "menu.h"
   7 #include "client.h"
   8 #include "xerror.h"
   9 #include "prop.h"
  10 #include "startup.h"
  11 #include "screen.h"
  12 #include "focus.h"
  13 #include "moveresize.h"
  14 #include "frame.h"
  15 #include "keyboard.h"
  16 #include "mouse.h"
  17 #include "extensions.h"
  18 #include "grab.h"
  19 #include "plugin.h"
  20 #include "timer.h"
  21 #include "group.h"
  22 #include "config.h"
  23 #include "gettext.h"
  24 #include "parser/parse.h"
  25 #include "render/render.h"
  26 #include "render/theme.h"
  27
  28 #ifdef HAVE_FCNTL_H
  29 #  include <fcntl.h>
  30 #endif
  31 #ifdef HAVE_SIGNAL_H
  32 #define __USE_UNIX98
  33 #  include <signal.h>
  34 #endif
  35 #ifdef HAVE_STDLIB_H
  36 #  include <stdlib.h>
  37 #endif
  38 #ifdef HAVE_LOCALE_H
  39 #  include <locale.h>
  40 #endif
  41 #ifdef HAVE_SYS_STAT_H
  42 #  include <sys/stat.h>
  43 #  include <sys/types.h>
  44 #endif
  45 #ifdef HAVE_UNISTD_H
  46 #  include <unistd.h>
  47 #endif
  48
  49 #include <X11/cursorfont.h>
  50
  51 RrInstance *ob_rr_inst;
  52 RrTheme    *ob_rr_theme;
  53 Display    *ob_display;
  54 gint        ob_screen;
  55 gboolean    ob_sm_use = TRUE;
  56 gchar      *ob_sm_id;
  57 gboolean    ob_replace_wm;
  58
  59 static ObState   state;
  60 static gboolean  xsync;
  61 static gboolean  shutdown;
  62 static gboolean  restart;
  63 static char     *restart_path;
  64 static Cursor    cursors[OB_NUM_CURSORS];
  65 static KeyCode   keys[OB_NUM_KEYS];
  66 static gchar    *sm_save_file;
  67
  68 static void signal_handler(int signal);
  69 static void parse_args(int argc, char **argv);
  70
  71 int main(int argc, char **argv)
  72 {
  73     struct sigaction action;
  74     sigset_t sigset;
  75     char *path;
  76     xmlDocPtr doc;
  77     xmlNodePtr node;
  78
  79 #ifdef DEBUG
  80     ob_debug_show_output(TRUE);
  81 #endif
  82
  83     state = OB_STATE_STARTING;
  84
  85     /* initialize the locale */
  86     if (!setlocale(LC_ALL, ""))
  87         g_warning("Couldn't set locale from environment.\n");
  88     bindtextdomain(PACKAGE_NAME, LOCALEDIR);
  89     bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
  90     textdomain(PACKAGE_NAME);
  91
  92     /* set up signal handler */
  93     sigemptyset(&sigset);
  94     action.sa_handler = signal_handler;
  95     action.sa_mask = sigset;
  96     action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
  97     sigaction(SIGUSR1, &action, (struct sigaction *) NULL);
  98     sigaction(SIGPIPE, &action, (struct sigaction *) NULL);
  99 /*    sigaction(SIGSEGV, &action, (struct sigaction *) NULL);*/
 100     sigaction(SIGFPE, &action, (struct sigaction *) NULL);
 101     sigaction(SIGTERM, &action, (struct sigaction *) NULL);
 102     sigaction(SIGINT, &action, (struct sigaction *) NULL);
 103     sigaction(SIGHUP, &action, (struct sigaction *) NULL);
 104
 105     /* create the ~/.openbox dir */
 106     path = g_build_filename(g_get_home_dir(), ".openbox", NULL);
 107     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 108                  S_IROTH | S_IWOTH | S_IXOTH));
 109     g_free(path);
 110     /* create the ~/.openbox/themes dir */
 111     path = g_build_filename(g_get_home_dir(), ".openbox", "themes", NULL);
 112     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 113                  S_IROTH | S_IWOTH | S_IXOTH));
 114     g_free(path);
 115     /* create the ~/.openbox/sessions dir */
 116     path = g_build_filename(g_get_home_dir(), ".openbox", "sessions", NULL);
 117     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 118                  S_IROTH | S_IWOTH | S_IXOTH));
 119     g_free(path);
 120
 121     g_set_prgname(argv[0]);
 122
 123     /* parse out command line args */
 124     parse_args(argc, argv);
 125
 126     ob_display = XOpenDisplay(NULL);
 127     if (ob_display == NULL)
 128         ob_exit_with_error("Failed to open the display.");
 129     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 130         ob_exit_with_error("Failed to set display as close-on-exec.");
 131
 132     if (sm_save_file)
 133         session_load(sm_save_file);
 134     session_startup(argc, argv);
 135
 136 #ifdef USE_LIBSN
 137     ob_sn_display = sn_display_new(ob_display, NULL, NULL);
 138 #endif
 139
 140     ob_screen = DefaultScreen(ob_display);
 141
 142     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 143     if (ob_rr_inst == NULL)
 144         ob_exit_with_error("Failed to initialize the render library.");
 145
 146     /* XXX fork self onto other screens */
 147
 148     XSynchronize(ob_display, xsync);
 149
 150     /* check for locale support */
 151     if (!XSupportsLocale())
 152         g_warning("X server does not support locale.");
 153     if (!XSetLocaleModifiers(""))
 154         g_warning("Cannot set locale modifiers for the X server.");
 155
 156     /* set our error handler */
 157     XSetErrorHandler(xerror_handler);
 158
 159     /* set the DISPLAY environment variable for any lauched children, to the
 160        display we're using, so they open in the right place. */
 161     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 162
 163     /* create available cursors */
 164     cursors[OB_CURSOR_POINTER] =
 165         XCreateFontCursor(ob_display, XC_left_ptr);
 166     cursors[OB_CURSOR_BUSY] =
 167         XCreateFontCursor(ob_display, XC_watch);
 168     cursors[OB_CURSOR_MOVE] =
 169         XCreateFontCursor(ob_display, XC_fleur);
 170     cursors[OB_CURSOR_NORTH] =
 171         XCreateFontCursor(ob_display, XC_top_side);
 172     cursors[OB_CURSOR_NORTHEAST] =
 173         XCreateFontCursor(ob_display, XC_top_right_corner);
 174     cursors[OB_CURSOR_EAST] =
 175         XCreateFontCursor(ob_display, XC_right_side);
 176     cursors[OB_CURSOR_SOUTHEAST] =
 177         XCreateFontCursor(ob_display, XC_bottom_right_corner);
 178     cursors[OB_CURSOR_SOUTH] =
 179         XCreateFontCursor(ob_display, XC_bottom_side);
 180     cursors[OB_CURSOR_SOUTHWEST] =
 181         XCreateFontCursor(ob_display, XC_bottom_left_corner);
 182     cursors[OB_CURSOR_WEST] =
 183         XCreateFontCursor(ob_display, XC_left_side);
 184     cursors[OB_CURSOR_NORTHWEST] =
 185         XCreateFontCursor(ob_display, XC_top_left_corner);
 186
 187     /* create available keycodes */
 188     keys[OB_KEY_RETURN] =
 189         XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
 190     keys[OB_KEY_ESCAPE] =
 191         XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
 192     keys[OB_KEY_LEFT] =
 193         XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
 194     keys[OB_KEY_RIGHT] =
 195         XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
 196     keys[OB_KEY_UP] =
 197         XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
 198     keys[OB_KEY_DOWN] =
 199         XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
 200
 201     prop_startup(); /* get atoms values for the display */
 202     extensions_query_all(); /* find which extensions are present */
 203
 204     /* save stuff that we can use to restore state */
 205     startup_save();
 206
 207     if (screen_annex()) { /* it will be ours! */
 208         ObParseInst *i;
 209
 210         /* startup the parsing so everything can register sections of the rc */
 211         i = parse_startup();
 212
 213         /* anything that is going to read data from the rc file needs to be
 214            in this group */
 215         timer_startup();
 216         event_startup();
 217         grab_startup();
 218         /* focus_backup is used for stacking, so this needs to come before
 219            anything that calls stacking_add */
 220         focus_startup();
 221         window_startup();
 222         plugin_startup();
 223         /* load the plugins specified in the pluginrc */
 224         plugin_loadall(i);
 225
 226         /* set up the kernel config shit */
 227         config_startup(i);
 228         menu_startup(i);
 229         /* parse/load user options */
 230         if (parse_load_rc(&doc, &node))
 231             parse_tree(i, doc, node->xmlChildrenNode);
 232         /* we're done with parsing now, kill it */
 233         xmlFreeDoc(doc);
 234         parse_shutdown(i);
 235
 236         menu_parse();
 237
 238         /* load the theme specified in the rc file */
 239         ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 240         if (ob_rr_theme == NULL)
 241             ob_exit_with_error("Unable to load a theme.");
 242
 243         moveresize_startup();
 244         screen_startup();
 245         group_startup();
 246         client_startup();
 247         dock_startup();
 248         keyboard_startup();
 249         mouse_startup();
 250
 251         /* call startup for all the plugins */
 252         plugin_startall();
 253
 254         /* get all the existing windows */
 255         client_manage_all();
 256
 257         state = OB_STATE_RUNNING;
 258         while (!shutdown)
 259             event_loop();
 260         state = OB_STATE_EXITING;
 261
 262         dock_remove_all();
 263         client_unmanage_all();
 264
 265         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 266         menu_shutdown();
 267         mouse_shutdown();
 268         keyboard_shutdown();
 269         dock_shutdown();
 270         client_shutdown();
 271         group_shutdown();
 272         screen_shutdown();
 273         focus_shutdown();
 274         moveresize_shutdown();
 275         window_shutdown();
 276         grab_shutdown();
 277         event_shutdown();
 278         timer_shutdown();
 279         config_shutdown();
 280     }
 281
 282     RrThemeFree(ob_rr_theme);
 283     RrInstanceFree(ob_rr_inst);
 284
 285     session_shutdown();
 286     g_free(ob_sm_id);
 287
 288 #ifdef USE_LIBSN
 289     sn_display_unref(ob_sn_display);
 290 #endif
 291
 292     XCloseDisplay(ob_display);
 293
 294     if (restart) {
 295         if (restart_path != NULL) {
 296             int argcp;
 297             char **argvp;
 298             GError *err = NULL;
 299
 300             /* run other shit */
 301             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
 302                 execvp(argvp[0], argvp);
 303                 g_strfreev(argvp);
 304             } else {
 305                 g_warning("failed to execute '%s': %s", restart_path,
 306                           err->message);
 307             }
 308         }
 309
 310         /* re-run me */
 311         execvp(argv[0], argv); /* try how we were run */
 312     }
 313
 314     return 0;
 315 }
 316
 317 static void signal_handler(int sig)
 318 {
 319     switch (sig) {
 320     case SIGUSR1:
 321         fprintf(stderr, "Caught SIGUSR1 signal. Restarting.");
 322         ob_restart();
 323         break;
 324
 325     case SIGHUP:
 326     case SIGINT:
 327     case SIGTERM:
 328     case SIGPIPE:
 329         fprintf(stderr, "Caught signal %d. Exiting.", sig);
 330         ob_exit();
 331         break;
 332
 333     case SIGFPE:
 334     case SIGSEGV:
 335         fprintf(stderr, "Caught signal %d. Aborting and dumping core.", sig);
 336         abort();
 337     }
 338 }
 339
 340 static void print_version()
 341 {
 342     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 343     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 344     g_print("This is free software, and you are welcome to redistribute it\n");
 345     g_print("under certain conditions. See the file COPYING for details.\n\n");
 346 }
 347
 348 static void print_help()
 349 {
 350     print_version();
 351     g_print("Syntax: openbox [options]\n\n");
 352     g_print("Options:\n\n");
 353 #ifdef USE_SM
 354     g_print("  --sm-disable        Disable connection to session manager\n");
 355     g_print("  --sm-client-id ID   Specify session management ID\n");
 356     g_print("  --sm-save-file FILE Specify file to load a saved session\n"
 357             "                      from\n");
 358 #endif
 359     g_print("  --replace           Replace the currently running window "
 360             "manager\n");
 361     g_print("  --help              Display this help and exit\n");
 362     g_print("  --version           Display the version and exit\n");
 363     g_print("  --sync              Run in synchronous mode (this is slow and\n"
 364             "                      meant for debugging X routines)\n");
 365     g_print("  --debug             Display debugging output\n");
 366     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 367 }
 368
 369 static void parse_args(int argc, char **argv)
 370 {
 371     int i;
 372
 373     for (i = 1; i < argc; ++i) {
 374         if (!strcmp(argv[i], "--version")) {
 375             print_version();
 376             exit(0);
 377         } else if (!strcmp(argv[i], "--help")) {
 378             print_help();
 379             exit(0);
 380         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
 381             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
 382         } else if (!strcmp(argv[i], "--replace")) {
 383             ob_replace_wm = TRUE;
 384         } else if (!strcmp(argv[i], "--sync")) {
 385             xsync = TRUE;
 386         } else if (!strcmp(argv[i], "--debug")) {
 387             ob_debug_show_output(TRUE);
 388 #ifdef USE_SM
 389         } else if (!strcmp(argv[i], "--sm-client-id")) {
 390             if (i == argc - 1) /* no args left */
 391                 g_printerr(_("--sm-client-id requires an argument\n"));
 392             else
 393                 ob_sm_id = g_strdup(argv[++i]);
 394         } else if (!strcmp(argv[i], "--sm-save-file")) {
 395             if (i == argc - 1) /* no args left */
 396                 g_printerr(_("--sm-save-file requires an argument\n"));
 397             else
 398                 sm_save_file = argv[++i];
 399         } else if (!strcmp(argv[i], "--sm-disable")) {
 400             ob_sm_use = FALSE;
 401 #endif
 402         } else {
 403             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 404             print_help();
 405             exit(1);
 406         }
 407     }
 408 }
 409
 410 void ob_exit_with_error(gchar *msg)
 411 {
 412     g_critical(msg);
 413     session_shutdown();
 414     exit(EXIT_FAILURE);
 415 }
 416
 417 void ob_restart_other(const gchar *path)
 418 {
 419     restart_path = g_strdup(path);
 420     ob_restart();
 421 }
 422
 423 void ob_restart()
 424 {
 425     restart = TRUE;
 426     ob_exit();
 427 }
 428
 429 void ob_exit()
 430 {
 431     shutdown = TRUE;
 432 }
 433
 434 Cursor ob_cursor(ObCursor cursor)
 435 {
 436     g_assert(cursor < OB_NUM_CURSORS);
 437     return cursors[cursor];
 438 }
 439
 440 KeyCode ob_keycode(ObKey key)
 441 {
 442     g_assert(key < OB_NUM_KEYS);
 443     return keys[key];
 444 }
 445
 446 ObState ob_state()
 447 {
 448     return state;
 449 }