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