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 static void exit_with_error(gchar *msg);
  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         exit_with_error("Failed to open the display.");
 134     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 135         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         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         /* startup the parsing so everything can register sections of the rc */
 214         parse_startup();
 215
 216         /* anything that is going to read data from the rc file needs to be
 217            in this group */
 218         timer_startup();
 219         event_startup();
 220         grab_startup();
 221         /* focus_backup is used for stacking, so this needs to come before
 222            anything that calls stacking_add */
 223         focus_startup();
 224         window_startup();
 225         plugin_startup();
 226         /* load the plugins specified in the pluginrc */
 227         plugin_loadall();
 228
 229         /* set up the kernel config shit */
 230         config_startup();
 231         menu_startup();
 232         /* parse/load user options */
 233         if (parse_load_rc(&doc, &node))
 234             parse_tree(doc, node->xmlChildrenNode, NULL);
 235         /* we're done with parsing now, kill it */
 236         parse_shutdown();
 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             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
 249         /* call startup for all the plugins */
 250         plugin_startall();
 251
 252         /* get all the existing windows */
 253         client_manage_all();
 254
 255         state = OB_STATE_RUNNING;
 256         while (!shutdown)
 257             event_loop();
 258         state = OB_STATE_EXITING;
 259
 260         dock_remove_all();
 261         client_unmanage_all();
 262
 263         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 264         dock_shutdown();
 265         client_shutdown();
 266         group_shutdown();
 267         screen_shutdown();
 268         focus_shutdown();
 269         moveresize_shutdown();
 270         menu_shutdown();
 271         window_shutdown();
 272         grab_shutdown();
 273         event_shutdown();
 274         timer_shutdown();
 275         config_shutdown();
 276     }
 277
 278     dispatch_shutdown();
 279
 280     RrThemeFree(ob_rr_theme);
 281     RrInstanceFree(ob_rr_inst);
 282
 283     session_shutdown();
 284     g_free(ob_sm_id);
 285
 286     XCloseDisplay(ob_display);
 287
 288     if (restart) {
 289         if (restart_path != NULL) {
 290             int argcp;
 291             char **argvp;
 292             GError *err = NULL;
 293
 294             /* run other shit */
 295             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
 296                 execvp(argvp[0], argvp);
 297                 g_strfreev(argvp);
 298             } else {
 299                 g_warning("failed to execute '%s': %s", restart_path,
 300                           err->message);
 301             }
 302         }
 303
 304         /* re-run me */
 305         execvp(argv[0], argv); /* try how we were run */
 306     }
 307
 308     return 0;
 309 }
 310
 311 static void signal_handler(const ObEvent *e, void *data)
 312 {
 313     int s;
 314
 315     s = e->data.s.signal;
 316     switch (s) {
 317     case SIGUSR1:
 318         fprintf(stderr, "Caught SIGUSR1 signal. Restarting.");
 319         ob_restart();
 320         break;
 321
 322     case SIGHUP:
 323     case SIGINT:
 324     case SIGTERM:
 325     case SIGPIPE:
 326         fprintf(stderr, "Caught signal %d. Exiting.", s);
 327         ob_exit();
 328         break;
 329
 330     case SIGFPE:
 331     case SIGSEGV:
 332         fprintf(stderr, "Caught signal %d. Aborting and dumping core.", s);
 333         abort();
 334     }
 335 }
 336
 337 static void print_version()
 338 {
 339     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 340     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 341     g_print("This is free software, and you are welcome to redistribute it\n");
 342     g_print("under certain conditions. See the file COPYING for details.\n\n");
 343 }
 344
 345 static void print_help()
 346 {
 347     print_version();
 348     g_print("Syntax: openbox [options]\n\n");
 349     g_print("Options:\n\n");
 350 #ifdef USE_SM
 351     g_print("  --sm-disable        Disable connection to session manager\n");
 352     g_print("  --sm-client-id ID   Specify session management ID\n");
 353     g_print("  --sm-save-file FILE Specify file to load a saved session\n"
 354             "                      from\n");
 355 #endif
 356     g_print("  --replace           Replace the currently running window "
 357             "manager\n");
 358     g_print("  --help              Display this help and exit\n");
 359     g_print("  --version           Display the version and exit\n");
 360     g_print("  --sync              Run in synchronous mode (this is slow and\n"
 361             "                      meant for debugging X routines)\n");
 362     g_print("  --debug             Display debugging output\n");
 363     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 364 }
 365
 366 static void parse_args(int argc, char **argv)
 367 {
 368     int i;
 369
 370     for (i = 1; i < argc; ++i) {
 371         if (!strcmp(argv[i], "--version")) {
 372             print_version();
 373             exit(0);
 374         } else if (!strcmp(argv[i], "--help")) {
 375             print_help();
 376             exit(0);
 377         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
 378             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
 379         } else if (!strcmp(argv[i], "--replace")) {
 380             ob_replace_wm = TRUE;
 381         } else if (!strcmp(argv[i], "--sync")) {
 382             xsync = TRUE;
 383         } else if (!strcmp(argv[i], "--debug")) {
 384             ob_debug_show_output(TRUE);
 385 #ifdef USE_SM
 386         } else if (!strcmp(argv[i], "--sm-client-id")) {
 387             if (i == argc - 1) /* no args left */
 388                 g_printerr(_("--sm-client-id requires an argument\n"));
 389             else
 390                 ob_sm_id = g_strdup(argv[++i]);
 391         } else if (!strcmp(argv[i], "--sm-save-file")) {
 392             if (i == argc - 1) /* no args left */
 393                 g_printerr(_("--sm-save-file requires an argument\n"));
 394             else
 395                 sm_save_file = argv[++i];
 396         } else if (!strcmp(argv[i], "--sm-disable")) {
 397             ob_sm_use = FALSE;
 398 #endif
 399         } else {
 400             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 401             print_help();
 402             exit(1);
 403         }
 404     }
 405 }
 406
 407 static void exit_with_error(gchar *msg)
 408 {
 409     g_critical(msg);
 410     session_shutdown();
 411     exit(EXIT_FAILURE);
 412 }
 413
 414 void ob_restart_other(const gchar *path)
 415 {
 416     restart_path = g_strdup(path);
 417     ob_restart();
 418 }
 419
 420 void ob_restart()
 421 {
 422     restart = TRUE;
 423     ob_exit();
 424 }
 425
 426 void ob_exit()
 427 {
 428     shutdown = TRUE;
 429 }
 430
 431 Cursor ob_cursor(ObCursor cursor)
 432 {
 433     g_assert(cursor < OB_NUM_CURSORS);
 434     return cursors[cursor];
 435 }
 436
 437 KeyCode ob_keycode(ObKey key)
 438 {
 439     g_assert(key < OB_NUM_KEYS);
 440     return keys[key];
 441 }
 442
 443 ObState ob_state()
 444 {
 445     return state;
 446 }