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 "dispatch.h"
   9 #include "xerror.h"
  10 #include "prop.h"
  11 #include "startup.h"
  12 #include "screen.h"
  13 #include "focus.h"
  14 #include "moveresize.h"
  15 #include "frame.h"
  16 #include "keyboard.h"
  17 #include "mouse.h"
  18 #include "extensions.h"
  19 #include "grab.h"
  20 #include "plugin.h"
  21 #include "timer.h"
  22 #include "group.h"
  23 #include "config.h"
  24 #include "gettext.h"
  25 #include "parser/parse.h"
  26 #include "render/render.h"
  27 #include "render/theme.h"
  28
  29 #ifdef HAVE_FCNTL_H
  30 #  include <fcntl.h>
  31 #endif
  32 #ifdef HAVE_SIGNAL_H
  33 #define __USE_UNIX98
  34 #  include <signal.h>
  35 #endif
  36 #ifdef HAVE_STDLIB_H
  37 #  include <stdlib.h>
  38 #endif
  39 #ifdef HAVE_LOCALE_H
  40 #  include <locale.h>
  41 #endif
  42 #ifdef HAVE_SYS_STAT_H
  43 #  include <sys/stat.h>
  44 #  include <sys/types.h>
  45 #endif
  46 #ifdef HAVE_UNISTD_H
  47 #  include <unistd.h>
  48 #endif
  49
  50 #include <X11/cursorfont.h>
  51
  52 RrInstance *ob_rr_inst;
  53 RrTheme    *ob_rr_theme;
  54 Display    *ob_display;
  55 gint        ob_screen;
  56 gboolean    ob_sm_use = TRUE;
  57 gchar      *ob_sm_id;
  58 gboolean    ob_replace_wm;
  59
  60 static ObState   state;
  61 static gboolean  xsync;
  62 static gboolean  shutdown;
  63 static gboolean  restart;
  64 static char     *restart_path;
  65 static Cursor    cursors[OB_NUM_CURSORS];
  66 static KeyCode   keys[OB_NUM_KEYS];
  67 static gchar    *sm_save_file;
  68
  69 static void signal_handler(const ObEvent *e, void *data);
  70 static void parse_args(int argc, char **argv);
  71
  72 int main(int argc, char **argv)
  73 {
  74     struct sigaction action;
  75     sigset_t sigset;
  76     char *path;
  77     xmlDocPtr doc;
  78     xmlNodePtr node;
  79
  80 #ifdef DEBUG
  81     ob_debug_show_output(TRUE);
  82 #endif
  83
  84     state = OB_STATE_STARTING;
  85
  86     /* initialize the locale */
  87     if (!setlocale(LC_ALL, ""))
  88         g_warning("Couldn't set locale from environment.\n");
  89     bindtextdomain(PACKAGE_NAME, LOCALEDIR);
  90     bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
  91     textdomain(PACKAGE_NAME);
  92
  93     /* start our event dispatcher and register for signals */
  94     dispatch_startup();
  95     dispatch_register(Event_Signal, signal_handler, NULL);
  96
  97     /* set up signal handler */
  98     sigemptyset(&sigset);
  99     action.sa_handler = dispatch_signal;
 100     action.sa_mask = sigset;
 101     action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
 102     sigaction(SIGUSR1, &action, (struct sigaction *) NULL);
 103     sigaction(SIGPIPE, &action, (struct sigaction *) NULL);
 104 /*    sigaction(SIGSEGV, &action, (struct sigaction *) NULL);*/
 105     sigaction(SIGFPE, &action, (struct sigaction *) NULL);
 106     sigaction(SIGTERM, &action, (struct sigaction *) NULL);
 107     sigaction(SIGINT, &action, (struct sigaction *) NULL);
 108     sigaction(SIGHUP, &action, (struct sigaction *) NULL);
 109
 110     /* create the ~/.openbox dir */
 111     path = g_build_filename(g_get_home_dir(), ".openbox", 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/themes dir */
 116     path = g_build_filename(g_get_home_dir(), ".openbox", "themes", 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     /* create the ~/.openbox/sessions dir */
 121     path = g_build_filename(g_get_home_dir(), ".openbox", "sessions", NULL);
 122     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 123                  S_IROTH | S_IWOTH | S_IXOTH));
 124     g_free(path);
 125
 126     g_set_prgname(argv[0]);
 127
 128     /* parse out command line args */
 129     parse_args(argc, argv);
 130
 131     ob_display = XOpenDisplay(NULL);
 132     if (ob_display == NULL)
 133         ob_exit_with_error("Failed to open the display.");
 134     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 135         ob_exit_with_error("Failed to set display as close-on-exec.");
 136
 137     if (sm_save_file)
 138         session_load(sm_save_file);
 139     session_startup(argc, argv);
 140
 141 #ifdef USE_LIBSN
 142     ob_sn_display = sn_display_new(ob_display, NULL, NULL);
 143 #endif
 144
 145     ob_screen = DefaultScreen(ob_display);
 146
 147     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 148     if (ob_rr_inst == NULL)
 149         ob_exit_with_error("Failed to initialize the render library.");
 150
 151     /* XXX fork self onto other screens */
 152
 153     XSynchronize(ob_display, xsync);
 154
 155     /* check for locale support */
 156     if (!XSupportsLocale())
 157         g_warning("X server does not support locale.");
 158     if (!XSetLocaleModifiers(""))
 159         g_warning("Cannot set locale modifiers for the X server.");
 160
 161     /* set our error handler */
 162     XSetErrorHandler(xerror_handler);
 163
 164     /* set the DISPLAY environment variable for any lauched children, to the
 165        display we're using, so they open in the right place. */
 166     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 167
 168     /* create available cursors */
 169     cursors[OB_CURSOR_POINTER] =
 170         XCreateFontCursor(ob_display, XC_left_ptr);
 171     cursors[OB_CURSOR_BUSY] =
 172         XCreateFontCursor(ob_display, XC_watch);
 173     cursors[OB_CURSOR_MOVE] =
 174         XCreateFontCursor(ob_display, XC_fleur);
 175     cursors[OB_CURSOR_NORTH] =
 176         XCreateFontCursor(ob_display, XC_top_side);
 177     cursors[OB_CURSOR_NORTHEAST] =
 178         XCreateFontCursor(ob_display, XC_top_right_corner);
 179     cursors[OB_CURSOR_EAST] =
 180         XCreateFontCursor(ob_display, XC_right_side);
 181     cursors[OB_CURSOR_SOUTHEAST] =
 182         XCreateFontCursor(ob_display, XC_bottom_right_corner);
 183     cursors[OB_CURSOR_SOUTH] =
 184         XCreateFontCursor(ob_display, XC_bottom_side);
 185     cursors[OB_CURSOR_SOUTHWEST] =
 186         XCreateFontCursor(ob_display, XC_bottom_left_corner);
 187     cursors[OB_CURSOR_WEST] =
 188         XCreateFontCursor(ob_display, XC_left_side);
 189     cursors[OB_CURSOR_NORTHWEST] =
 190         XCreateFontCursor(ob_display, XC_top_left_corner);
 191
 192     /* create available keycodes */
 193     keys[OB_KEY_RETURN] =
 194         XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
 195     keys[OB_KEY_ESCAPE] =
 196         XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
 197     keys[OB_KEY_LEFT] =
 198         XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
 199     keys[OB_KEY_RIGHT] =
 200         XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
 201     keys[OB_KEY_UP] =
 202         XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
 203     keys[OB_KEY_DOWN] =
 204         XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
 205
 206     prop_startup(); /* get atoms values for the display */
 207     extensions_query_all(); /* find which extensions are present */
 208
 209     /* save stuff that we can use to restore state */
 210     startup_save();
 211
 212     if (screen_annex()) { /* it will be ours! */
 213         ObParseInst *i;
 214
 215         /* startup the parsing so everything can register sections of the rc */
 216         i = parse_startup();
 217
 218         /* anything that is going to read data from the rc file needs to be
 219            in this group */
 220         timer_startup();
 221         event_startup();
 222         grab_startup();
 223         /* focus_backup is used for stacking, so this needs to come before
 224            anything that calls stacking_add */
 225         focus_startup();
 226         window_startup();
 227         plugin_startup();
 228         /* load the plugins specified in the pluginrc */
 229         plugin_loadall(i);
 230
 231         /* set up the kernel config shit */
 232         config_startup(i);
 233         menu_startup(i);
 234         /* parse/load user options */
 235         if (parse_load_rc(&doc, &node))
 236             parse_tree(i, doc, node->xmlChildrenNode);
 237         /* we're done with parsing now, kill it */
 238         parse_shutdown(i);
 239
 240         menu_parse();
 241
 242         /* load the theme specified in the rc file */
 243         ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 244         if (ob_rr_theme == NULL)
 245             ob_exit_with_error("Unable to load a theme.");
 246
 247         moveresize_startup();
 248         screen_startup();
 249         group_startup();
 250         client_startup();
 251         dock_startup();
 252         keyboard_startup();
 253         mouse_startup();
 254
 255         /* call startup for all the plugins */
 256         plugin_startall();
 257
 258         /* get all the existing windows */
 259         client_manage_all();
 260
 261         state = OB_STATE_RUNNING;
 262         while (!shutdown)
 263             event_loop();
 264         state = OB_STATE_EXITING;
 265
 266         dock_remove_all();
 267         client_unmanage_all();
 268
 269         menu_shutdown(); /* destroy menus before unloading plugins */
 270         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 271         mouse_shutdown();
 272         keyboard_shutdown();
 273         dock_shutdown();
 274         client_shutdown();
 275         group_shutdown();
 276         screen_shutdown();
 277         focus_shutdown();
 278         moveresize_shutdown();
 279         window_shutdown();
 280         grab_shutdown();
 281         event_shutdown();
 282         timer_shutdown();
 283         config_shutdown();
 284     }
 285
 286     dispatch_shutdown();
 287
 288     RrThemeFree(ob_rr_theme);
 289     RrInstanceFree(ob_rr_inst);
 290
 291     session_shutdown();
 292     g_free(ob_sm_id);
 293
 294     XCloseDisplay(ob_display);
 295
 296     if (restart) {
 297         if (restart_path != NULL) {
 298             int argcp;
 299             char **argvp;
 300             GError *err = NULL;
 301
 302             /* run other shit */
 303             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
 304                 execvp(argvp[0], argvp);
 305                 g_strfreev(argvp);
 306             } else {
 307                 g_warning("failed to execute '%s': %s", restart_path,
 308                           err->message);
 309             }
 310         }
 311
 312         /* re-run me */
 313         execvp(argv[0], argv); /* try how we were run */
 314     }
 315
 316     return 0;
 317 }
 318
 319 static void signal_handler(const ObEvent *e, void *data)
 320 {
 321     int s;
 322
 323     s = e->data.s.signal;
 324     switch (s) {
 325     case SIGUSR1:
 326         fprintf(stderr, "Caught SIGUSR1 signal. Restarting.");
 327         ob_restart();
 328         break;
 329
 330     case SIGHUP:
 331     case SIGINT:
 332     case SIGTERM:
 333     case SIGPIPE:
 334         fprintf(stderr, "Caught signal %d. Exiting.", s);
 335         ob_exit();
 336         break;
 337
 338     case SIGFPE:
 339     case SIGSEGV:
 340         fprintf(stderr, "Caught signal %d. Aborting and dumping core.", s);
 341         abort();
 342     }
 343 }
 344
 345 static void print_version()
 346 {
 347     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 348     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 349     g_print("This is free software, and you are welcome to redistribute it\n");
 350     g_print("under certain conditions. See the file COPYING for details.\n\n");
 351 }
 352
 353 static void print_help()
 354 {
 355     print_version();
 356     g_print("Syntax: openbox [options]\n\n");
 357     g_print("Options:\n\n");
 358 #ifdef USE_SM
 359     g_print("  --sm-disable        Disable connection to session manager\n");
 360     g_print("  --sm-client-id ID   Specify session management ID\n");
 361     g_print("  --sm-save-file FILE Specify file to load a saved session\n"
 362             "                      from\n");
 363 #endif
 364     g_print("  --replace           Replace the currently running window "
 365             "manager\n");
 366     g_print("  --help              Display this help and exit\n");
 367     g_print("  --version           Display the version and exit\n");
 368     g_print("  --sync              Run in synchronous mode (this is slow and\n"
 369             "                      meant for debugging X routines)\n");
 370     g_print("  --debug             Display debugging output\n");
 371     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 372 }
 373
 374 static void parse_args(int argc, char **argv)
 375 {
 376     int i;
 377
 378     for (i = 1; i < argc; ++i) {
 379         if (!strcmp(argv[i], "--version")) {
 380             print_version();
 381             exit(0);
 382         } else if (!strcmp(argv[i], "--help")) {
 383             print_help();
 384             exit(0);
 385         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
 386             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
 387         } else if (!strcmp(argv[i], "--replace")) {
 388             ob_replace_wm = TRUE;
 389         } else if (!strcmp(argv[i], "--sync")) {
 390             xsync = TRUE;
 391         } else if (!strcmp(argv[i], "--debug")) {
 392             ob_debug_show_output(TRUE);
 393 #ifdef USE_SM
 394         } else if (!strcmp(argv[i], "--sm-client-id")) {
 395             if (i == argc - 1) /* no args left */
 396                 g_printerr(_("--sm-client-id requires an argument\n"));
 397             else
 398                 ob_sm_id = g_strdup(argv[++i]);
 399         } else if (!strcmp(argv[i], "--sm-save-file")) {
 400             if (i == argc - 1) /* no args left */
 401                 g_printerr(_("--sm-save-file requires an argument\n"));
 402             else
 403                 sm_save_file = argv[++i];
 404         } else if (!strcmp(argv[i], "--sm-disable")) {
 405             ob_sm_use = FALSE;
 406 #endif
 407         } else {
 408             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 409             print_help();
 410             exit(1);
 411         }
 412     }
 413 }
 414
 415 void ob_exit_with_error(gchar *msg)
 416 {
 417     g_critical(msg);
 418     session_shutdown();
 419     exit(EXIT_FAILURE);
 420 }
 421
 422 void ob_restart_other(const gchar *path)
 423 {
 424     restart_path = g_strdup(path);
 425     ob_restart();
 426 }
 427
 428 void ob_restart()
 429 {
 430     restart = TRUE;
 431     ob_exit();
 432 }
 433
 434 void ob_exit()
 435 {
 436     shutdown = TRUE;
 437 }
 438
 439 Cursor ob_cursor(ObCursor cursor)
 440 {
 441     g_assert(cursor < OB_NUM_CURSORS);
 442     return cursors[cursor];
 443 }
 444
 445 KeyCode ob_keycode(ObKey key)
 446 {
 447     g_assert(key < OB_NUM_KEYS);
 448     return keys[key];
 449 }
 450
 451 ObState ob_state()
 452 {
 453     return state;
 454 }