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