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_replace_wm;
  57
  58 static ObState   state;
  59 static gboolean  xsync;
  60 static gboolean  reconfigure;
  61 static gboolean  restart;
  62 static char     *restart_path;
  63 static Cursor    cursors[OB_NUM_CURSORS];
  64 static KeyCode   keys[OB_NUM_KEYS];
  65
  66 static void signal_handler(int signal, gpointer data);
  67 static void parse_args(int argc, char **argv);
  68
  69 int main(int argc, char **argv)
  70 {
  71     char *path;
  72
  73 #ifdef DEBUG
  74     ob_debug_show_output(TRUE);
  75 #endif
  76
  77     state = OB_STATE_STARTING;
  78
  79     /* initialize the locale */
  80     if (!setlocale(LC_ALL, ""))
  81         g_warning("Couldn't set locale from environment.\n");
  82     bindtextdomain(PACKAGE_NAME, LOCALEDIR);
  83     bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
  84     textdomain(PACKAGE_NAME);
  85
  86     /* create the ~/.openbox dir */
  87     path = g_build_filename(g_get_home_dir(), ".openbox", NULL);
  88     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
  89                  S_IROTH | S_IWOTH | S_IXOTH));
  90     g_free(path);
  91     /* create the ~/.openbox/themes dir */
  92     path = g_build_filename(g_get_home_dir(), ".openbox", "themes", NULL);
  93     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
  94                  S_IROTH | S_IWOTH | S_IXOTH));
  95     g_free(path);
  96     /* create the ~/.openbox/sessions dir */
  97     path = g_build_filename(g_get_home_dir(), ".openbox", "sessions", NULL);
  98     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
  99                  S_IROTH | S_IWOTH | S_IXOTH));
 100     g_free(path);
 101
 102     g_set_prgname(argv[0]);
 103
 104     /* parse out command line args */
 105     parse_args(argc, argv);
 106
 107     ob_display = XOpenDisplay(NULL);
 108     if (ob_display == NULL)
 109         ob_exit_with_error("Failed to open the display.");
 110     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 111         ob_exit_with_error("Failed to set display as close-on-exec.");
 112
 113     ob_main_loop = ob_main_loop_new(ob_display);
 114
 115     /* set up signal handler */
 116     ob_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL, NULL);
 117     ob_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL, NULL);
 118     ob_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL, NULL);
 119     ob_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL, NULL);
 120     ob_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL, NULL);
 121     ob_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL, NULL);
 122
 123     session_startup(&argc, &argv);
 124
 125     ob_screen = DefaultScreen(ob_display);
 126
 127     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 128     if (ob_rr_inst == NULL)
 129         ob_exit_with_error("Failed to initialize the render library.");
 130
 131     /* XXX fork self onto other screens */
 132
 133     XSynchronize(ob_display, xsync);
 134
 135     /* check for locale support */
 136     if (!XSupportsLocale())
 137         g_warning("X server does not support locale.");
 138     if (!XSetLocaleModifiers(""))
 139         g_warning("Cannot set locale modifiers for the X server.");
 140
 141     /* set our error handler */
 142     XSetErrorHandler(xerror_handler);
 143
 144     /* set the DISPLAY environment variable for any lauched children, to the
 145        display we're using, so they open in the right place. */
 146     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 147
 148     /* create available cursors */
 149     cursors[OB_CURSOR_NONE] = None;
 150     cursors[OB_CURSOR_POINTER] =
 151         XCreateFontCursor(ob_display, XC_left_ptr);
 152     cursors[OB_CURSOR_BUSY] =
 153         XCreateFontCursor(ob_display, XC_watch);
 154     cursors[OB_CURSOR_MOVE] =
 155         XCreateFontCursor(ob_display, XC_fleur);
 156     cursors[OB_CURSOR_NORTH] =
 157         XCreateFontCursor(ob_display, XC_top_side);
 158     cursors[OB_CURSOR_NORTHEAST] =
 159         XCreateFontCursor(ob_display, XC_top_right_corner);
 160     cursors[OB_CURSOR_EAST] =
 161         XCreateFontCursor(ob_display, XC_right_side);
 162     cursors[OB_CURSOR_SOUTHEAST] =
 163         XCreateFontCursor(ob_display, XC_bottom_right_corner);
 164     cursors[OB_CURSOR_SOUTH] =
 165         XCreateFontCursor(ob_display, XC_bottom_side);
 166     cursors[OB_CURSOR_SOUTHWEST] =
 167         XCreateFontCursor(ob_display, XC_bottom_left_corner);
 168     cursors[OB_CURSOR_WEST] =
 169         XCreateFontCursor(ob_display, XC_left_side);
 170     cursors[OB_CURSOR_NORTHWEST] =
 171         XCreateFontCursor(ob_display, XC_top_left_corner);
 172
 173     /* create available keycodes */
 174     keys[OB_KEY_RETURN] =
 175         XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
 176     keys[OB_KEY_ESCAPE] =
 177         XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
 178     keys[OB_KEY_LEFT] =
 179         XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
 180     keys[OB_KEY_RIGHT] =
 181         XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
 182     keys[OB_KEY_UP] =
 183         XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
 184     keys[OB_KEY_DOWN] =
 185         XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
 186
 187     prop_startup(); /* get atoms values for the display */
 188     extensions_query_all(); /* find which extensions are present */
 189
 190     if (screen_annex()) { /* it will be ours! */
 191         do {
 192             event_startup(reconfigure);
 193             grab_startup(reconfigure);
 194             /* focus_backup is used for stacking, so this needs to come before
 195                anything that calls stacking_add */
 196             focus_startup(reconfigure);
 197             window_startup(reconfigure);
 198             sn_startup(reconfigure);
 199
 200             {
 201                 ObParseInst *i;
 202                 xmlDocPtr doc;
 203                 xmlNodePtr node;
 204
 205                 /* startup the parsing so everything can register sections
 206                    of the rc */
 207                 i = parse_startup();
 208
 209                 config_startup(i);
 210                 /* parse/load user options */
 211                 if (parse_load_rc(&doc, &node))
 212                     parse_tree(i, doc, node->xmlChildrenNode);
 213                 /* we're done with parsing now, kill it */
 214                 xmlFreeDoc(doc);
 215                 parse_shutdown(i);
 216             }
 217
 218             /* load the theme specified in the rc file */
 219             {
 220                 RrTheme *theme;
 221                 if ((theme = RrThemeNew(ob_rr_inst, config_theme)))
 222                     ob_rr_theme = theme;
 223                 if (ob_rr_theme == NULL)
 224                     ob_exit_with_error("Unable to load a theme.");
 225             }
 226
 227             moveresize_startup(reconfigure);
 228             screen_startup(reconfigure);
 229             group_startup(reconfigure);
 230             client_startup(reconfigure);
 231             dock_startup(reconfigure);
 232             keyboard_startup(reconfigure);
 233             mouse_startup(reconfigure);
 234             menu_startup(reconfigure);
 235
 236             if (!reconfigure) {
 237                 /* get all the existing windows */
 238                 client_manage_all();
 239             } else {
 240                 GList *it;
 241
 242                 /* redecorate all existing windows */
 243                 for (it = client_list; it; it = g_list_next(it)) {
 244                     ObClient *c = it->data;
 245                     frame_adjust_theme(c->frame);
 246                 }
 247             }
 248
 249             reconfigure = FALSE;
 250
 251             state = OB_STATE_RUNNING;
 252             ob_main_loop_run(ob_main_loop);
 253             state = OB_STATE_EXITING;
 254
 255             if (!reconfigure) {
 256                 dock_remove_all();
 257                 client_unmanage_all();
 258             }
 259
 260             menu_shutdown(reconfigure);
 261             mouse_shutdown(reconfigure);
 262             keyboard_shutdown(reconfigure);
 263             dock_shutdown(reconfigure);
 264             client_shutdown(reconfigure);
 265             group_shutdown(reconfigure);
 266             screen_shutdown(reconfigure);
 267             focus_shutdown(reconfigure);
 268             moveresize_shutdown(reconfigure);
 269             sn_shutdown(reconfigure);
 270             window_shutdown(reconfigure);
 271             grab_shutdown(reconfigure);
 272             event_shutdown(reconfigure);
 273             config_shutdown();
 274         } while (reconfigure);
 275     }
 276
 277     RrThemeFree(ob_rr_theme);
 278     RrInstanceFree(ob_rr_inst);
 279
 280     session_shutdown();
 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         execlp(argv[0], g_path_get_basename(argv[0])); /* last resort */
 303     }
 304
 305     return 0;
 306 }
 307
 308 static void signal_handler(int signal, gpointer data)
 309 {
 310     if (signal == SIGUSR1) {
 311         fprintf(stderr, "Caught signal %d. Restarting.\n", signal);
 312         ob_restart();
 313     } else if (signal == SIGUSR2) {
 314         fprintf(stderr, "Caught signal %d. Reconfiguring.\n", signal);
 315         ob_reconfigure();
 316     } else {
 317         fprintf(stderr, "Caught signal %d. Exiting.\n", signal);
 318         ob_exit();
 319     }
 320 }
 321
 322 static void print_version()
 323 {
 324     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 325     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 326     g_print("This is free software, and you are welcome to redistribute it\n");
 327     g_print("under certain conditions. See the file COPYING for details.\n\n");
 328 }
 329
 330 static void print_help()
 331 {
 332     print_version();
 333     g_print("Syntax: openbox [options]\n\n");
 334     g_print("Options:\n\n");
 335 #ifdef USE_SM
 336     g_print("  --sm-disable        Disable connection to session manager\n");
 337     g_print("  --sm-client-id ID   Specify session management ID\n");
 338     g_print("  --sm-save-file FILE Specify file to load a saved session\n"
 339             "                      from\n");
 340 #endif
 341     g_print("  --replace           Replace the currently running window "
 342             "manager\n");
 343     g_print("  --help              Display this help and exit\n");
 344     g_print("  --version           Display the version and exit\n");
 345     g_print("  --sync              Run in synchronous mode (this is slow and\n"
 346             "                      meant for debugging X routines)\n");
 347     g_print("  --debug             Display debugging output\n");
 348     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 349 }
 350
 351 static void parse_args(int argc, char **argv)
 352 {
 353     int i;
 354
 355     for (i = 1; i < argc; ++i) {
 356         if (!strcmp(argv[i], "--version")) {
 357             print_version();
 358             exit(0);
 359         } else if (!strcmp(argv[i], "--help")) {
 360             print_help();
 361             exit(0);
 362         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
 363             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
 364         } else if (!strcmp(argv[i], "--replace")) {
 365             ob_replace_wm = TRUE;
 366         } else if (!strcmp(argv[i], "--sync")) {
 367             xsync = TRUE;
 368         } else if (!strcmp(argv[i], "--debug")) {
 369             ob_debug_show_output(TRUE);
 370         } else {
 371             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 372             print_help();
 373             exit(1);
 374         }
 375     }
 376 }
 377
 378 void ob_exit_with_error(gchar *msg)
 379 {
 380     g_critical(msg);
 381     session_shutdown();
 382     exit(EXIT_FAILURE);
 383 }
 384
 385 void ob_restart_other(const gchar *path)
 386 {
 387     restart_path = g_strdup(path);
 388     ob_restart();
 389 }
 390
 391 void ob_restart()
 392 {
 393     restart = TRUE;
 394     ob_exit();
 395 }
 396
 397 void ob_exit()
 398 {
 399     ob_main_loop_exit(ob_main_loop);
 400 }
 401
 402 Cursor ob_cursor(ObCursor cursor)
 403 {
 404     g_assert(cursor < OB_NUM_CURSORS);
 405     return cursors[cursor];
 406 }
 407
 408 KeyCode ob_keycode(ObKey key)
 409 {
 410     g_assert(key < OB_NUM_KEYS);
 411     return keys[key];
 412 }
 413
 414 ObState ob_state()
 415 {
 416     return state;
 417 }
 418
 419 gchar *ob_expand_tilde(const gchar *f)
 420 {
 421     gchar **spl;
 422     gchar *ret;
 423
 424     if (!f)
 425         return NULL;
 426     spl = g_strsplit(f, "~", 0);
 427     ret = g_strjoinv(g_get_home_dir(), spl);
 428     g_strfreev(spl);
 429     return ret;
 430 }
 431
 432 void ob_reconfigure()
 433 {
 434     reconfigure = TRUE;
 435     ob_exit();
 436 }