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     session_load(sm_save_file);
 138     session_startup(argc, argv);
 139
 140 #ifdef USE_LIBSN
 141     ob_sn_display = sn_display_new(ob_display, NULL, NULL);
 142 #endif
 143
 144     ob_screen = DefaultScreen(ob_display);
 145
 146     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 147     if (ob_rr_inst == NULL)
 148         exit_with_error("Failed to initialize the render library.");
 149
 150     /* XXX fork self onto other screens */
 151
 152     XSynchronize(ob_display, xsync);
 153
 154     /* check for locale support */
 155     if (!XSupportsLocale())
 156         g_warning("X server does not support locale.");
 157     if (!XSetLocaleModifiers(""))
 158         g_warning("Cannot set locale modifiers for the X server.");
 159
 160     /* set our error handler */
 161     XSetErrorHandler(xerror_handler);
 162
 163     /* set the DISPLAY environment variable for any lauched children, to the
 164        display we're using, so they open in the right place. */
 165     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 166
 167     /* create available cursors */
 168     cursors[OB_CURSOR_POINTER] =
 169         XCreateFontCursor(ob_display, XC_left_ptr);
 170     cursors[OB_CURSOR_BUSY] =
 171         XCreateFontCursor(ob_display, XC_watch);
 172     cursors[OB_CURSOR_MOVE] =
 173         XCreateFontCursor(ob_display, XC_fleur);
 174     cursors[OB_CURSOR_NORTH] =
 175         XCreateFontCursor(ob_display, XC_top_side);
 176     cursors[OB_CURSOR_NORTHEAST] =
 177         XCreateFontCursor(ob_display, XC_top_right_corner);
 178     cursors[OB_CURSOR_EAST] =
 179         XCreateFontCursor(ob_display, XC_right_side);
 180     cursors[OB_CURSOR_SOUTHEAST] =
 181         XCreateFontCursor(ob_display, XC_bottom_right_corner);
 182     cursors[OB_CURSOR_SOUTH] =
 183         XCreateFontCursor(ob_display, XC_bottom_side);
 184     cursors[OB_CURSOR_SOUTHWEST] =
 185         XCreateFontCursor(ob_display, XC_bottom_left_corner);
 186     cursors[OB_CURSOR_WEST] =
 187         XCreateFontCursor(ob_display, XC_left_side);
 188     cursors[OB_CURSOR_NORTHWEST] =
 189         XCreateFontCursor(ob_display, XC_top_left_corner);
 190
 191     /* create available keycodes */
 192     keys[OB_KEY_RETURN] =
 193         XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
 194     keys[OB_KEY_ESCAPE] =
 195         XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
 196     keys[OB_KEY_LEFT] =
 197         XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
 198     keys[OB_KEY_RIGHT] =
 199         XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
 200     keys[OB_KEY_UP] =
 201         XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
 202     keys[OB_KEY_DOWN] =
 203         XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
 204
 205     prop_startup(); /* get atoms values for the display */
 206     extensions_query_all(); /* find which extensions are present */
 207
 208     /* save stuff that we can use to restore state */
 209     startup_save();
 210
 211     if (screen_annex()) { /* it will be ours! */
 212         /* startup the parsing so everything can register sections of the rc */
 213         parse_startup();
 214
 215         /* anything that is going to read data from the rc file needs to be
 216            in this group */
 217         timer_startup();
 218         event_startup();
 219         grab_startup();
 220         /* focus_backup is used for stacking, so this needs to come before
 221            anything that calls stacking_add */
 222         focus_startup();
 223         window_startup();
 224         plugin_startup();
 225         /* load the plugins specified in the pluginrc */
 226         plugin_loadall();
 227
 228         /* set up the kernel config shit */
 229         config_startup();
 230         menu_startup();
 231         /* parse/load user options */
 232         if (parse_load_rc(&doc, &node))
 233             parse_tree(doc, node->xmlChildrenNode, NULL);
 234         /* we're done with parsing now, kill it */
 235         parse_shutdown();
 236
 237         /* load the theme specified in the rc file */
 238         ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 239         if (ob_rr_theme == NULL)
 240             exit_with_error("Unable to load a theme.");
 241
 242         moveresize_startup();
 243         screen_startup();
 244         group_startup();
 245         client_startup();
 246         dock_startup();
 247
 248         /* call startup for all the plugins */
 249         plugin_startall();
 250
 251         /* get all the existing windows */
 252         client_manage_all();
 253
 254         state = OB_STATE_RUNNING;
 255         while (!shutdown)
 256             event_loop();
 257         state = OB_STATE_EXITING;
 258
 259         dock_remove_all();
 260         client_unmanage_all();
 261
 262         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 263         dock_shutdown();
 264         client_shutdown();
 265         group_shutdown();
 266         screen_shutdown();
 267         focus_shutdown();
 268         moveresize_shutdown();
 269         menu_shutdown();
 270         window_shutdown();
 271         grab_shutdown();
 272         event_shutdown();
 273         timer_shutdown();
 274         config_shutdown();
 275     }
 276
 277     dispatch_shutdown();
 278
 279     RrThemeFree(ob_rr_theme);
 280     RrInstanceFree(ob_rr_inst);
 281
 282     session_shutdown();
 283     g_free(ob_sm_id);
 284
 285     XCloseDisplay(ob_display);
 286
 287     if (restart) {
 288         if (restart_path != NULL) {
 289             int argcp;
 290             char **argvp;
 291             GError *err = NULL;
 292
 293             /* run other shit */
 294             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
 295                 execvp(argvp[0], argvp);
 296                 g_strfreev(argvp);
 297             } else {
 298                 g_warning("failed to execute '%s': %s", restart_path,
 299                           err->message);
 300             }
 301         }
 302
 303         /* re-run me */
 304         execvp(argv[0], argv); /* try how we were run */
 305     }
 306
 307     return 0;
 308 }
 309
 310 static void signal_handler(const ObEvent *e, void *data)
 311 {
 312     int s;
 313
 314     s = e->data.s.signal;
 315     switch (s) {
 316     case SIGUSR1:
 317         fprintf(stderr, "Caught SIGUSR1 signal. Restarting.");
 318         ob_restart();
 319         break;
 320
 321     case SIGHUP:
 322     case SIGINT:
 323     case SIGTERM:
 324     case SIGPIPE:
 325         fprintf(stderr, "Caught signal %d. Exiting.", s);
 326         ob_exit();
 327         break;
 328
 329     case SIGFPE:
 330     case SIGSEGV:
 331         fprintf(stderr, "Caught signal %d. Aborting and dumping core.", s);
 332         abort();
 333     }
 334 }
 335
 336 static void print_version()
 337 {
 338     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 339     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 340     g_print("This is free software, and you are welcome to redistribute it\n");
 341     g_print("under certain conditions. See the file COPYING for details.\n\n");
 342 }
 343
 344 static void print_help()
 345 {
 346     print_version();
 347     g_print("Syntax: openbox [options]\n\n");
 348     g_print("Options:\n\n");
 349 #ifdef USE_SM
 350     g_print("  --sm-disable        Disable connection to session manager\n");
 351     g_print("  --sm-client-id ID   Specify session management ID\n");
 352     g_print("  --sm-save-file FILE Specify file to load a saved session\n"
 353             "                      from\n");
 354 #endif
 355     g_print("  --replace           Replace the currently running window "
 356             "manager\n");
 357     g_print("  --help              Display this help and exit\n");
 358     g_print("  --version           Display the version and exit\n");
 359     g_print("  --sync              Run in synchronous mode (this is slow and\n"
 360             "                      meant for debugging X routines)\n");
 361     g_print("  --debug             Display debugging output\n");
 362     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 363 }
 364
 365 static void parse_args(int argc, char **argv)
 366 {
 367     int i;
 368
 369     for (i = 1; i < argc; ++i) {
 370         if (!strcmp(argv[i], "--version")) {
 371             print_version();
 372             exit(0);
 373         } else if (!strcmp(argv[i], "--help")) {
 374             print_help();
 375             exit(0);
 376         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
 377             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
 378         } else if (!strcmp(argv[i], "--replace")) {
 379             ob_replace_wm = TRUE;
 380         } else if (!strcmp(argv[i], "--sync")) {
 381             xsync = TRUE;
 382         } else if (!strcmp(argv[i], "--debug")) {
 383             ob_debug_show_output(TRUE);
 384 #ifdef USE_SM
 385         } else if (!strcmp(argv[i], "--sm-client-id")) {
 386             if (i == argc - 1) /* no args left */
 387                 g_printerr(_("--sm-client-id requires an argument\n"));
 388             else
 389                 ob_sm_id = g_strdup(argv[++i]);
 390         } else if (!strcmp(argv[i], "--sm-save-file")) {
 391             if (i == argc - 1) /* no args left */
 392                 g_printerr(_("--sm-save-file requires an argument\n"));
 393             else
 394                 sm_save_file = argv[++i];
 395         } else if (!strcmp(argv[i], "--sm-disable")) {
 396             ob_sm_use = FALSE;
 397 #endif
 398         } else {
 399             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 400             print_help();
 401             exit(1);
 402         }
 403     }
 404 }
 405
 406 static void exit_with_error(gchar *msg)
 407 {
 408     g_critical(msg);
 409     session_shutdown();
 410     exit(EXIT_FAILURE);
 411 }
 412
 413 void ob_restart_other(const gchar *path)
 414 {
 415     restart_path = g_strdup(path);
 416     ob_restart();
 417 }
 418
 419 void ob_restart()
 420 {
 421     restart = TRUE;
 422     ob_exit();
 423 }
 424
 425 void ob_exit()
 426 {
 427     shutdown = TRUE;
 428 }
 429
 430 Cursor ob_cursor(ObCursor cursor)
 431 {
 432     g_assert(cursor < OB_NUM_CURSORS);
 433     return cursors[cursor];
 434 }
 435
 436 KeyCode ob_keycode(ObKey key)
 437 {
 438     g_assert(key < OB_NUM_KEYS);
 439     return keys[key];
 440 }
 441
 442 ObState ob_state()
 443 {
 444     return state;
 445 }