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 "screen.h"
  11 #include "startupnotify.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     ob_screen = DefaultScreen(ob_display);
 131
 132     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 133     if (ob_rr_inst == NULL)
 134         ob_exit_with_error("Failed to initialize the render library.");
 135
 136     /* XXX fork self onto other screens */
 137
 138     XSynchronize(ob_display, xsync);
 139
 140     /* check for locale support */
 141     if (!XSupportsLocale())
 142         g_warning("X server does not support locale.");
 143     if (!XSetLocaleModifiers(""))
 144         g_warning("Cannot set locale modifiers for the X server.");
 145
 146     /* set our error handler */
 147     XSetErrorHandler(xerror_handler);
 148
 149     /* set the DISPLAY environment variable for any lauched children, to the
 150        display we're using, so they open in the right place. */
 151     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 152
 153     /* create available cursors */
 154     cursors[OB_CURSOR_NONE] = None;
 155     cursors[OB_CURSOR_POINTER] =
 156         XCreateFontCursor(ob_display, XC_left_ptr);
 157     cursors[OB_CURSOR_BUSY] =
 158         XCreateFontCursor(ob_display, XC_watch);
 159     cursors[OB_CURSOR_MOVE] =
 160         XCreateFontCursor(ob_display, XC_fleur);
 161     cursors[OB_CURSOR_NORTH] =
 162         XCreateFontCursor(ob_display, XC_top_side);
 163     cursors[OB_CURSOR_NORTHEAST] =
 164         XCreateFontCursor(ob_display, XC_top_right_corner);
 165     cursors[OB_CURSOR_EAST] =
 166         XCreateFontCursor(ob_display, XC_right_side);
 167     cursors[OB_CURSOR_SOUTHEAST] =
 168         XCreateFontCursor(ob_display, XC_bottom_right_corner);
 169     cursors[OB_CURSOR_SOUTH] =
 170         XCreateFontCursor(ob_display, XC_bottom_side);
 171     cursors[OB_CURSOR_SOUTHWEST] =
 172         XCreateFontCursor(ob_display, XC_bottom_left_corner);
 173     cursors[OB_CURSOR_WEST] =
 174         XCreateFontCursor(ob_display, XC_left_side);
 175     cursors[OB_CURSOR_NORTHWEST] =
 176         XCreateFontCursor(ob_display, XC_top_left_corner);
 177
 178     /* create available keycodes */
 179     keys[OB_KEY_RETURN] =
 180         XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
 181     keys[OB_KEY_ESCAPE] =
 182         XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
 183     keys[OB_KEY_LEFT] =
 184         XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
 185     keys[OB_KEY_RIGHT] =
 186         XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
 187     keys[OB_KEY_UP] =
 188         XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
 189     keys[OB_KEY_DOWN] =
 190         XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
 191
 192     prop_startup(); /* get atoms values for the display */
 193     extensions_query_all(); /* find which extensions are present */
 194
 195     if (screen_annex()) { /* it will be ours! */
 196         do {
 197             event_startup(reconfigure);
 198             grab_startup(reconfigure);
 199             /* focus_backup is used for stacking, so this needs to come before
 200                anything that calls stacking_add */
 201             focus_startup(reconfigure);
 202             window_startup(reconfigure);
 203             sn_startup(reconfigure);
 204
 205             {
 206                 ObParseInst *i;
 207                 xmlDocPtr doc;
 208                 xmlNodePtr node;
 209
 210                 /* startup the parsing so everything can register sections
 211                    of the rc */
 212                 i = parse_startup();
 213
 214                 config_startup(i);
 215                 /* parse/load user options */
 216                 if (parse_load_rc(&doc, &node))
 217                     parse_tree(i, doc, node->xmlChildrenNode);
 218                 /* we're done with parsing now, kill it */
 219                 xmlFreeDoc(doc);
 220                 parse_shutdown(i);
 221             }
 222
 223             /* load the theme specified in the rc file */
 224             {
 225                 RrTheme *theme;
 226                 if ((theme = RrThemeNew(ob_rr_inst, config_theme)))
 227                     ob_rr_theme = theme;
 228                 if (ob_rr_theme == NULL)
 229                     ob_exit_with_error("Unable to load a theme.");
 230             }
 231
 232             moveresize_startup(reconfigure);
 233             screen_startup(reconfigure);
 234             group_startup(reconfigure);
 235             client_startup(reconfigure);
 236             dock_startup(reconfigure);
 237             keyboard_startup(reconfigure);
 238             mouse_startup(reconfigure);
 239             menu_startup(reconfigure);
 240
 241             if (!reconfigure) {
 242                 /* get all the existing windows */
 243                 client_manage_all();
 244             } else {
 245                 GList *it;
 246
 247                 /* redecorate all existing windows */
 248                 for (it = client_list; it; it = g_list_next(it)) {
 249                     ObClient *c = it->data;
 250                     frame_adjust_theme(c->frame);
 251                 }
 252             }
 253
 254             reconfigure = FALSE;
 255
 256             state = OB_STATE_RUNNING;
 257             ob_main_loop_run(ob_main_loop);
 258             state = OB_STATE_EXITING;
 259
 260             if (!reconfigure) {
 261                 dock_remove_all();
 262                 client_unmanage_all();
 263             }
 264
 265             menu_shutdown(reconfigure);
 266             mouse_shutdown(reconfigure);
 267             keyboard_shutdown(reconfigure);
 268             dock_shutdown(reconfigure);
 269             client_shutdown(reconfigure);
 270             group_shutdown(reconfigure);
 271             screen_shutdown(reconfigure);
 272             focus_shutdown(reconfigure);
 273             moveresize_shutdown(reconfigure);
 274             sn_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     XCloseDisplay(ob_display);
 289
 290     if (restart) {
 291         if (restart_path != NULL) {
 292             int argcp;
 293             char **argvp;
 294             GError *err = NULL;
 295
 296             /* run other shit */
 297             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
 298                 execvp(argvp[0], argvp);
 299                 g_strfreev(argvp);
 300             } else {
 301                 g_warning("failed to execute '%s': %s", restart_path,
 302                           err->message);
 303             }
 304         }
 305
 306         /* re-run me */
 307         execvp(argv[0], argv); /* try how we were run */
 308     }
 309
 310     return 0;
 311 }
 312
 313 static void signal_handler(int signal, gpointer data)
 314 {
 315     if (signal == SIGUSR1) {
 316         fprintf(stderr, "Caught signal %d. Restarting.\n", signal);
 317         ob_restart();
 318     } else if (signal == SIGUSR2) {
 319         fprintf(stderr, "Caught signal %d. Reconfiguring.\n", signal);
 320         ob_reconfigure();
 321     } else {
 322         fprintf(stderr, "Caught signal %d. Exiting.\n", signal);
 323         ob_exit();
 324     }
 325 }
 326
 327 static void print_version()
 328 {
 329     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 330     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 331     g_print("This is free software, and you are welcome to redistribute it\n");
 332     g_print("under certain conditions. See the file COPYING for details.\n\n");
 333 }
 334
 335 static void print_help()
 336 {
 337     print_version();
 338     g_print("Syntax: openbox [options]\n\n");
 339     g_print("Options:\n\n");
 340 #ifdef USE_SM
 341     g_print("  --sm-disable        Disable connection to session manager\n");
 342     g_print("  --sm-client-id ID   Specify session management ID\n");
 343     g_print("  --sm-save-file FILE Specify file to load a saved session\n"
 344             "                      from\n");
 345 #endif
 346     g_print("  --replace           Replace the currently running window "
 347             "manager\n");
 348     g_print("  --help              Display this help and exit\n");
 349     g_print("  --version           Display the version and exit\n");
 350     g_print("  --sync              Run in synchronous mode (this is slow and\n"
 351             "                      meant for debugging X routines)\n");
 352     g_print("  --debug             Display debugging output\n");
 353     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 354 }
 355
 356 static void parse_args(int argc, char **argv)
 357 {
 358     int i;
 359
 360     for (i = 1; i < argc; ++i) {
 361         if (!strcmp(argv[i], "--version")) {
 362             print_version();
 363             exit(0);
 364         } else if (!strcmp(argv[i], "--help")) {
 365             print_help();
 366             exit(0);
 367         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
 368             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
 369         } else if (!strcmp(argv[i], "--replace")) {
 370             ob_replace_wm = TRUE;
 371         } else if (!strcmp(argv[i], "--sync")) {
 372             xsync = TRUE;
 373         } else if (!strcmp(argv[i], "--debug")) {
 374             ob_debug_show_output(TRUE);
 375 #ifdef USE_SM
 376         } else if (!strcmp(argv[i], "--sm-client-id")) {
 377             if (i == argc - 1) /* no args left */
 378                 g_printerr(_("--sm-client-id requires an argument\n"));
 379             else
 380                 ob_sm_id = g_strdup(argv[++i]);
 381         } else if (!strcmp(argv[i], "--sm-save-file")) {
 382             if (i == argc - 1) /* no args left */
 383                 g_printerr(_("--sm-save-file requires an argument\n"));
 384             else
 385                 sm_save_file = argv[++i];
 386         } else if (!strcmp(argv[i], "--sm-disable")) {
 387             ob_sm_use = FALSE;
 388 #endif
 389         } else {
 390             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 391             print_help();
 392             exit(1);
 393         }
 394     }
 395 }
 396
 397 void ob_exit_with_error(gchar *msg)
 398 {
 399     g_critical(msg);
 400     session_shutdown();
 401     exit(EXIT_FAILURE);
 402 }
 403
 404 void ob_restart_other(const gchar *path)
 405 {
 406     restart_path = g_strdup(path);
 407     ob_restart();
 408 }
 409
 410 void ob_restart()
 411 {
 412     restart = TRUE;
 413     ob_exit();
 414 }
 415
 416 void ob_exit()
 417 {
 418     ob_main_loop_exit(ob_main_loop);
 419 }
 420
 421 Cursor ob_cursor(ObCursor cursor)
 422 {
 423     g_assert(cursor < OB_NUM_CURSORS);
 424     return cursors[cursor];
 425 }
 426
 427 KeyCode ob_keycode(ObKey key)
 428 {
 429     g_assert(key < OB_NUM_KEYS);
 430     return keys[key];
 431 }
 432
 433 ObState ob_state()
 434 {
 435     return state;
 436 }
 437
 438 gchar *ob_expand_tilde(const gchar *f)
 439 {
 440     gchar **spl;
 441     gchar *ret, *mid;
 442
 443     if (!f)
 444         return NULL;
 445     spl = g_strsplit(f, "~", 0);
 446     mid = g_strconcat(g_get_home_dir(), G_DIR_SEPARATOR_S, NULL);
 447     ret = g_strjoinv(mid, spl);
 448     g_free(mid);
 449     g_strfreev(spl);
 450     return ret;
 451 }
 452
 453 void ob_reconfigure()
 454 {
 455     reconfigure = TRUE;
 456     ob_exit();
 457 }