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         /* 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             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         mouse_shutdown();
 267         keyboard_shutdown();
 268         dock_shutdown();
 269         client_shutdown();
 270         group_shutdown();
 271         screen_shutdown();
 272         focus_shutdown();
 273         moveresize_shutdown();
 274         menu_shutdown();
 275         window_shutdown();
 276         grab_shutdown();
 277         event_shutdown();
 278         timer_shutdown();
 279         config_shutdown();
 280     }
 281
 282     dispatch_shutdown();
 283
 284     RrThemeFree(ob_rr_theme);
 285     RrInstanceFree(ob_rr_inst);
 286
 287     session_shutdown();
 288     g_free(ob_sm_id);
 289
 290     XCloseDisplay(ob_display);
 291
 292     if (restart) {
 293         if (restart_path != NULL) {
 294             int argcp;
 295             char **argvp;
 296             GError *err = NULL;
 297
 298             /* run other shit */
 299             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
 300                 execvp(argvp[0], argvp);
 301                 g_strfreev(argvp);
 302             } else {
 303                 g_warning("failed to execute '%s': %s", restart_path,
 304                           err->message);
 305             }
 306         }
 307
 308         /* re-run me */
 309         execvp(argv[0], argv); /* try how we were run */
 310     }
 311
 312     return 0;
 313 }
 314
 315 static void signal_handler(const ObEvent *e, void *data)
 316 {
 317     int s;
 318
 319     s = e->data.s.signal;
 320     switch (s) {
 321     case SIGUSR1:
 322         fprintf(stderr, "Caught SIGUSR1 signal. Restarting.");
 323         ob_restart();
 324         break;
 325
 326     case SIGHUP:
 327     case SIGINT:
 328     case SIGTERM:
 329     case SIGPIPE:
 330         fprintf(stderr, "Caught signal %d. Exiting.", s);
 331         ob_exit();
 332         break;
 333
 334     case SIGFPE:
 335     case SIGSEGV:
 336         fprintf(stderr, "Caught signal %d. Aborting and dumping core.", s);
 337         abort();
 338     }
 339 }
 340
 341 static void print_version()
 342 {
 343     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 344     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 345     g_print("This is free software, and you are welcome to redistribute it\n");
 346     g_print("under certain conditions. See the file COPYING for details.\n\n");
 347 }
 348
 349 static void print_help()
 350 {
 351     print_version();
 352     g_print("Syntax: openbox [options]\n\n");
 353     g_print("Options:\n\n");
 354 #ifdef USE_SM
 355     g_print("  --sm-disable        Disable connection to session manager\n");
 356     g_print("  --sm-client-id ID   Specify session management ID\n");
 357     g_print("  --sm-save-file FILE Specify file to load a saved session\n"
 358             "                      from\n");
 359 #endif
 360     g_print("  --replace           Replace the currently running window "
 361             "manager\n");
 362     g_print("  --help              Display this help and exit\n");
 363     g_print("  --version           Display the version and exit\n");
 364     g_print("  --sync              Run in synchronous mode (this is slow and\n"
 365             "                      meant for debugging X routines)\n");
 366     g_print("  --debug             Display debugging output\n");
 367     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 368 }
 369
 370 static void parse_args(int argc, char **argv)
 371 {
 372     int i;
 373
 374     for (i = 1; i < argc; ++i) {
 375         if (!strcmp(argv[i], "--version")) {
 376             print_version();
 377             exit(0);
 378         } else if (!strcmp(argv[i], "--help")) {
 379             print_help();
 380             exit(0);
 381         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
 382             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
 383         } else if (!strcmp(argv[i], "--replace")) {
 384             ob_replace_wm = TRUE;
 385         } else if (!strcmp(argv[i], "--sync")) {
 386             xsync = TRUE;
 387         } else if (!strcmp(argv[i], "--debug")) {
 388             ob_debug_show_output(TRUE);
 389 #ifdef USE_SM
 390         } else if (!strcmp(argv[i], "--sm-client-id")) {
 391             if (i == argc - 1) /* no args left */
 392                 g_printerr(_("--sm-client-id requires an argument\n"));
 393             else
 394                 ob_sm_id = g_strdup(argv[++i]);
 395         } else if (!strcmp(argv[i], "--sm-save-file")) {
 396             if (i == argc - 1) /* no args left */
 397                 g_printerr(_("--sm-save-file requires an argument\n"));
 398             else
 399                 sm_save_file = argv[++i];
 400         } else if (!strcmp(argv[i], "--sm-disable")) {
 401             ob_sm_use = FALSE;
 402 #endif
 403         } else {
 404             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 405             print_help();
 406             exit(1);
 407         }
 408     }
 409 }
 410
 411 void ob_exit_with_error(gchar *msg)
 412 {
 413     g_critical(msg);
 414     session_shutdown();
 415     exit(EXIT_FAILURE);
 416 }
 417
 418 void ob_restart_other(const gchar *path)
 419 {
 420     restart_path = g_strdup(path);
 421     ob_restart();
 422 }
 423
 424 void ob_restart()
 425 {
 426     restart = TRUE;
 427     ob_exit();
 428 }
 429
 430 void ob_exit()
 431 {
 432     shutdown = TRUE;
 433 }
 434
 435 Cursor ob_cursor(ObCursor cursor)
 436 {
 437     g_assert(cursor < OB_NUM_CURSORS);
 438     return cursors[cursor];
 439 }
 440
 441 KeyCode ob_keycode(ObKey key)
 442 {
 443     g_assert(key < OB_NUM_KEYS);
 444     return keys[key];
 445 }
 446
 447 ObState ob_state()
 448 {
 449     return state;
 450 }