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 "menuframe.h"
  19 #include "grab.h"
  20 #include "group.h"
  21 #include "config.h"
  22 #include "mainloop.h"
  23 #include "gettext.h"
  24 #include "parser/parse.h"
  25 #include "render/render.h"
  26 #include "render/theme.h"
  27
  28 #ifdef HAVE_FCNTL_H
  29 #  include <fcntl.h>
  30 #endif
  31 #ifdef HAVE_SIGNAL_H
  32 #define __USE_UNIX98
  33 #  include <signal.h>
  34 #endif
  35 #ifdef HAVE_STDLIB_H
  36 #  include <stdlib.h>
  37 #endif
  38 #ifdef HAVE_LOCALE_H
  39 #  include <locale.h>
  40 #endif
  41 #ifdef HAVE_SYS_STAT_H
  42 #  include <sys/stat.h>
  43 #  include <sys/types.h>
  44 #endif
  45 #ifdef HAVE_UNISTD_H
  46 #  include <unistd.h>
  47 #endif
  48
  49 #include <X11/cursorfont.h>
  50
  51 RrInstance *ob_rr_inst;
  52 RrTheme    *ob_rr_theme;
  53 ObMainLoop *ob_main_loop;
  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  reconfigure;
  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(int signal, gpointer data);
  70 static void parse_args(int argc, char **argv);
  71
  72 int main(int argc, char **argv)
  73 {
  74     char *path;
  75
  76 #ifdef DEBUG
  77     ob_debug_show_output(TRUE);
  78 #endif
  79
  80     state = OB_STATE_STARTING;
  81
  82     /* initialize the locale */
  83     if (!setlocale(LC_ALL, ""))
  84         g_warning("Couldn't set locale from environment.\n");
  85     bindtextdomain(PACKAGE_NAME, LOCALEDIR);
  86     bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
  87     textdomain(PACKAGE_NAME);
  88
  89     /* create the ~/.openbox dir */
  90     path = g_build_filename(g_get_home_dir(), ".openbox", NULL);
  91     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
  92                  S_IROTH | S_IWOTH | S_IXOTH));
  93     g_free(path);
  94     /* create the ~/.openbox/themes dir */
  95     path = g_build_filename(g_get_home_dir(), ".openbox", "themes", NULL);
  96     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
  97                  S_IROTH | S_IWOTH | S_IXOTH));
  98     g_free(path);
  99     /* create the ~/.openbox/sessions dir */
 100     path = g_build_filename(g_get_home_dir(), ".openbox", "sessions", NULL);
 101     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 102                  S_IROTH | S_IWOTH | S_IXOTH));
 103     g_free(path);
 104
 105     g_set_prgname(argv[0]);
 106
 107     /* parse out command line args */
 108     parse_args(argc, argv);
 109
 110     ob_display = XOpenDisplay(NULL);
 111     if (ob_display == NULL)
 112         ob_exit_with_error("Failed to open the display.");
 113     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 114         ob_exit_with_error("Failed to set display as close-on-exec.");
 115
 116     ob_main_loop = ob_main_loop_new(ob_display);
 117
 118     /* set up signal handler */
 119     ob_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL, NULL);
 120     ob_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL, NULL);
 121     ob_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL, NULL);
 122     ob_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL, NULL);
 123     ob_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL, NULL);
 124     ob_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL, NULL);
 125
 126     if (sm_save_file)
 127         session_load(sm_save_file);
 128     session_startup(argc, argv);
 129
 130 #ifdef USE_LIBSN
 131     ob_sn_display = sn_display_new(ob_display, NULL, NULL);
 132 #endif
 133
 134     ob_screen = DefaultScreen(ob_display);
 135
 136     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 137     if (ob_rr_inst == NULL)
 138         ob_exit_with_error("Failed to initialize the render library.");
 139
 140     /* XXX fork self onto other screens */
 141
 142     XSynchronize(ob_display, xsync);
 143
 144     /* check for locale support */
 145     if (!XSupportsLocale())
 146         g_warning("X server does not support locale.");
 147     if (!XSetLocaleModifiers(""))
 148         g_warning("Cannot set locale modifiers for the X server.");
 149
 150     /* set our error handler */
 151     XSetErrorHandler(xerror_handler);
 152
 153     /* set the DISPLAY environment variable for any lauched children, to the
 154        display we're using, so they open in the right place. */
 155     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 156
 157     /* create available cursors */
 158     cursors[OB_CURSOR_POINTER] =
 159         XCreateFontCursor(ob_display, XC_left_ptr);
 160     cursors[OB_CURSOR_BUSY] =
 161         XCreateFontCursor(ob_display, XC_watch);
 162     cursors[OB_CURSOR_MOVE] =
 163         XCreateFontCursor(ob_display, XC_fleur);
 164     cursors[OB_CURSOR_NORTH] =
 165         XCreateFontCursor(ob_display, XC_top_side);
 166     cursors[OB_CURSOR_NORTHEAST] =
 167         XCreateFontCursor(ob_display, XC_top_right_corner);
 168     cursors[OB_CURSOR_EAST] =
 169         XCreateFontCursor(ob_display, XC_right_side);
 170     cursors[OB_CURSOR_SOUTHEAST] =
 171         XCreateFontCursor(ob_display, XC_bottom_right_corner);
 172     cursors[OB_CURSOR_SOUTH] =
 173         XCreateFontCursor(ob_display, XC_bottom_side);
 174     cursors[OB_CURSOR_SOUTHWEST] =
 175         XCreateFontCursor(ob_display, XC_bottom_left_corner);
 176     cursors[OB_CURSOR_WEST] =
 177         XCreateFontCursor(ob_display, XC_left_side);
 178     cursors[OB_CURSOR_NORTHWEST] =
 179         XCreateFontCursor(ob_display, XC_top_left_corner);
 180
 181     /* create available keycodes */
 182     keys[OB_KEY_RETURN] =
 183         XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
 184     keys[OB_KEY_ESCAPE] =
 185         XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
 186     keys[OB_KEY_LEFT] =
 187         XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
 188     keys[OB_KEY_RIGHT] =
 189         XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
 190     keys[OB_KEY_UP] =
 191         XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
 192     keys[OB_KEY_DOWN] =
 193         XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
 194
 195     prop_startup(); /* get atoms values for the display */
 196     extensions_query_all(); /* find which extensions are present */
 197
 198     /* save stuff that we can use to restore state */
 199     startup_save();
 200
 201     if (screen_annex()) { /* it will be ours! */
 202         do {
 203             event_startup(reconfigure);
 204             grab_startup(reconfigure);
 205             /* focus_backup is used for stacking, so this needs to come before
 206                anything that calls stacking_add */
 207             focus_startup(reconfigure);
 208             window_startup(reconfigure);
 209
 210             {
 211                 ObParseInst *i;
 212                 xmlDocPtr doc;
 213                 xmlNodePtr node;
 214
 215                 /* startup the parsing so everything can register sections
 216                    of the rc */
 217                 i = parse_startup();
 218
 219                 config_startup(i);
 220                 /* parse/load user options */
 221                 if (parse_load_rc(&doc, &node))
 222                     parse_tree(i, doc, node->xmlChildrenNode);
 223                 /* we're done with parsing now, kill it */
 224                 xmlFreeDoc(doc);
 225                 parse_shutdown(i);
 226             }
 227
 228             /* load the theme specified in the rc file */
 229             ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 230             if (ob_rr_theme == NULL)
 231                 ob_exit_with_error("Unable to load a theme.");
 232
 233             moveresize_startup(reconfigure);
 234             screen_startup(reconfigure);
 235             group_startup(reconfigure);
 236             client_startup(reconfigure);
 237             dock_startup(reconfigure);
 238             keyboard_startup(reconfigure);
 239             mouse_startup(reconfigure);
 240             menu_startup(reconfigure);
 241
 242             if (!reconfigure) {
 243                 /* get all the existing windows */
 244                 client_manage_all();
 245             } else {
 246                 GList *it;
 247
 248                 /* redecorate all existing windows */
 249                 for (it = client_list; it; it = g_list_next(it)) {
 250                     ObClient *c = it->data;
 251                     frame_adjust_theme(c->frame);
 252                 }
 253             }
 254
 255             reconfigure = FALSE;
 256
 257             state = OB_STATE_RUNNING;
 258             ob_main_loop_run(ob_main_loop);
 259             state = OB_STATE_EXITING;
 260
 261             if (!reconfigure) {
 262                 dock_remove_all();
 263                 client_unmanage_all();
 264             }
 265
 266             menu_shutdown(reconfigure);
 267             mouse_shutdown(reconfigure);
 268             keyboard_shutdown(reconfigure);
 269             dock_shutdown(reconfigure);
 270             client_shutdown(reconfigure);
 271             group_shutdown(reconfigure);
 272             screen_shutdown(reconfigure);
 273             focus_shutdown(reconfigure);
 274             moveresize_shutdown(reconfigure);
 275             window_shutdown(reconfigure);
 276             grab_shutdown(reconfigure);
 277             event_shutdown(reconfigure);
 278             config_shutdown();
 279         } while (reconfigure);
 280     }
 281
 282     RrThemeFree(ob_rr_theme);
 283     RrInstanceFree(ob_rr_inst);
 284
 285     session_shutdown();
 286     g_free(ob_sm_id);
 287
 288 #ifdef USE_LIBSN
 289     sn_display_unref(ob_sn_display);
 290 #endif
 291
 292     XCloseDisplay(ob_display);
 293
 294     if (restart) {
 295         if (restart_path != NULL) {
 296             int argcp;
 297             char **argvp;
 298             GError *err = NULL;
 299
 300             /* run other shit */
 301             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
 302                 execvp(argvp[0], argvp);
 303                 g_strfreev(argvp);
 304             } else {
 305                 g_warning("failed to execute '%s': %s", restart_path,
 306                           err->message);
 307             }
 308         }
 309
 310         /* re-run me */
 311         execvp(argv[0], argv); /* try how we were run */
 312     }
 313
 314     return 0;
 315 }
 316
 317 static void signal_handler(int signal, gpointer data)
 318 {
 319     if (signal == SIGUSR1) {
 320         fprintf(stderr, "Caught signal %d. Restarting.\n", signal);
 321         ob_restart();
 322     } else if (signal == SIGUSR2) {
 323         fprintf(stderr, "Caught signal %d. Reconfiguring.\n", signal);
 324         ob_reconfigure();
 325     } else {
 326         fprintf(stderr, "Caught signal %d. Exiting.\n", signal);
 327         ob_exit();
 328     }
 329 }
 330
 331 static void print_version()
 332 {
 333     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 334     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 335     g_print("This is free software, and you are welcome to redistribute it\n");
 336     g_print("under certain conditions. See the file COPYING for details.\n\n");
 337 }
 338
 339 static void print_help()
 340 {
 341     print_version();
 342     g_print("Syntax: openbox [options]\n\n");
 343     g_print("Options:\n\n");
 344 #ifdef USE_SM
 345     g_print("  --sm-disable        Disable connection to session manager\n");
 346     g_print("  --sm-client-id ID   Specify session management ID\n");
 347     g_print("  --sm-save-file FILE Specify file to load a saved session\n"
 348             "                      from\n");
 349 #endif
 350     g_print("  --replace           Replace the currently running window "
 351             "manager\n");
 352     g_print("  --help              Display this help and exit\n");
 353     g_print("  --version           Display the version and exit\n");
 354     g_print("  --sync              Run in synchronous mode (this is slow and\n"
 355             "                      meant for debugging X routines)\n");
 356     g_print("  --debug             Display debugging output\n");
 357     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 358 }
 359
 360 static void parse_args(int argc, char **argv)
 361 {
 362     int i;
 363
 364     for (i = 1; i < argc; ++i) {
 365         if (!strcmp(argv[i], "--version")) {
 366             print_version();
 367             exit(0);
 368         } else if (!strcmp(argv[i], "--help")) {
 369             print_help();
 370             exit(0);
 371         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
 372             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
 373         } else if (!strcmp(argv[i], "--replace")) {
 374             ob_replace_wm = TRUE;
 375         } else if (!strcmp(argv[i], "--sync")) {
 376             xsync = TRUE;
 377         } else if (!strcmp(argv[i], "--debug")) {
 378             ob_debug_show_output(TRUE);
 379 #ifdef USE_SM
 380         } else if (!strcmp(argv[i], "--sm-client-id")) {
 381             if (i == argc - 1) /* no args left */
 382                 g_printerr(_("--sm-client-id requires an argument\n"));
 383             else
 384                 ob_sm_id = g_strdup(argv[++i]);
 385         } else if (!strcmp(argv[i], "--sm-save-file")) {
 386             if (i == argc - 1) /* no args left */
 387                 g_printerr(_("--sm-save-file requires an argument\n"));
 388             else
 389                 sm_save_file = argv[++i];
 390         } else if (!strcmp(argv[i], "--sm-disable")) {
 391             ob_sm_use = FALSE;
 392 #endif
 393         } else {
 394             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 395             print_help();
 396             exit(1);
 397         }
 398     }
 399 }
 400
 401 void ob_exit_with_error(gchar *msg)
 402 {
 403     g_critical(msg);
 404     session_shutdown();
 405     exit(EXIT_FAILURE);
 406 }
 407
 408 void ob_restart_other(const gchar *path)
 409 {
 410     restart_path = g_strdup(path);
 411     ob_restart();
 412 }
 413
 414 void ob_restart()
 415 {
 416     restart = TRUE;
 417     ob_exit();
 418 }
 419
 420 void ob_exit()
 421 {
 422     ob_main_loop_exit(ob_main_loop);
 423 }
 424
 425 Cursor ob_cursor(ObCursor cursor)
 426 {
 427     g_assert(cursor < OB_NUM_CURSORS);
 428     return cursors[cursor];
 429 }
 430
 431 KeyCode ob_keycode(ObKey key)
 432 {
 433     g_assert(key < OB_NUM_KEYS);
 434     return keys[key];
 435 }
 436
 437 ObState ob_state()
 438 {
 439     return state;
 440 }
 441
 442 gchar *ob_expand_tilde(const gchar *f)
 443 {
 444     gchar **spl;
 445     gchar *ret, *mid;
 446
 447     if (!f)
 448         return NULL;
 449     spl = g_strsplit(f, "~", 0);
 450     mid = g_strconcat(g_get_home_dir(), G_DIR_SEPARATOR_S, NULL);
 451     ret = g_strjoinv(mid, spl);
 452     g_free(mid);
 453     g_strfreev(spl);
 454     return ret;
 455 }
 456
 457 void ob_reconfigure()
 458 {
 459     reconfigure = TRUE;
 460     ob_exit();
 461 }