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 "popup.h"
  21 #include "group.h"
  22 #include "config.h"
  23 #include "mainloop.h"
  24 #include "gettext.h"
  25 #include "parser/parse.h"
  26 #include "render/render.h"
  27 #include "render/theme.h"
  28
  29 #ifdef HAVE_FCNTL_H
  30 #  include <fcntl.h>
  31 #endif
  32 #ifdef HAVE_SIGNAL_H
  33 #define __USE_UNIX98
  34 #  include <signal.h>
  35 #endif
  36 #ifdef HAVE_STDLIB_H
  37 #  include <stdlib.h>
  38 #endif
  39 #ifdef HAVE_LOCALE_H
  40 #  include <locale.h>
  41 #endif
  42 #ifdef HAVE_SYS_STAT_H
  43 #  include <sys/stat.h>
  44 #  include <sys/types.h>
  45 #endif
  46 #ifdef HAVE_UNISTD_H
  47 #  include <unistd.h>
  48 #endif
  49
  50 #include <X11/cursorfont.h>
  51
  52 RrInstance *ob_rr_inst;
  53 RrTheme    *ob_rr_theme;
  54 ObMainLoop *ob_main_loop;
  55 Display    *ob_display;
  56 gint        ob_screen;
  57 gboolean    ob_sm_use = TRUE;
  58 gchar      *ob_sm_id;
  59 gboolean    ob_replace_wm;
  60
  61 static ObState   state;
  62 static gboolean  xsync;
  63 static gboolean  reconfigure;
  64 static gboolean  restart;
  65 static char     *restart_path;
  66 static Cursor    cursors[OB_NUM_CURSORS];
  67 static KeyCode   keys[OB_NUM_KEYS];
  68 static gchar    *sm_save_file;
  69
  70 static void signal_handler(int signal, gpointer data);
  71 static void parse_args(int argc, char **argv);
  72
  73 int main(int argc, char **argv)
  74 {
  75     char *path;
  76
  77 #ifdef DEBUG
  78     ob_debug_show_output(TRUE);
  79 #endif
  80
  81     state = OB_STATE_STARTING;
  82
  83     /* initialize the locale */
  84     if (!setlocale(LC_ALL, ""))
  85         g_warning("Couldn't set locale from environment.\n");
  86     bindtextdomain(PACKAGE_NAME, LOCALEDIR);
  87     bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
  88     textdomain(PACKAGE_NAME);
  89
  90     /* create the ~/.openbox dir */
  91     path = g_build_filename(g_get_home_dir(), ".openbox", NULL);
  92     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
  93                  S_IROTH | S_IWOTH | S_IXOTH));
  94     g_free(path);
  95     /* create the ~/.openbox/themes dir */
  96     path = g_build_filename(g_get_home_dir(), ".openbox", "themes", NULL);
  97     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
  98                  S_IROTH | S_IWOTH | S_IXOTH));
  99     g_free(path);
 100     /* create the ~/.openbox/sessions dir */
 101     path = g_build_filename(g_get_home_dir(), ".openbox", "sessions", NULL);
 102     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 103                  S_IROTH | S_IWOTH | S_IXOTH));
 104     g_free(path);
 105
 106     g_set_prgname(argv[0]);
 107
 108     /* parse out command line args */
 109     parse_args(argc, argv);
 110
 111     ob_display = XOpenDisplay(NULL);
 112     if (ob_display == NULL)
 113         ob_exit_with_error("Failed to open the display.");
 114     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 115         ob_exit_with_error("Failed to set display as close-on-exec.");
 116
 117     ob_main_loop = ob_main_loop_new(ob_display);
 118
 119     /* set up signal handler */
 120     ob_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL, NULL);
 121     ob_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL, NULL);
 122     ob_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL, NULL);
 123     ob_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL, NULL);
 124     ob_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL, NULL);
 125     ob_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL, NULL);
 126
 127     if (sm_save_file)
 128         session_load(sm_save_file);
 129     session_startup(argc, argv);
 130
 131     ob_screen = DefaultScreen(ob_display);
 132
 133     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 134     if (ob_rr_inst == NULL)
 135         ob_exit_with_error("Failed to initialize the render library.");
 136
 137     /* XXX fork self onto other screens */
 138
 139     XSynchronize(ob_display, xsync);
 140
 141     /* check for locale support */
 142     if (!XSupportsLocale())
 143         g_warning("X server does not support locale.");
 144     if (!XSetLocaleModifiers(""))
 145         g_warning("Cannot set locale modifiers for the X server.");
 146
 147     /* set our error handler */
 148     XSetErrorHandler(xerror_handler);
 149
 150     /* set the DISPLAY environment variable for any lauched children, to the
 151        display we're using, so they open in the right place. */
 152     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 153
 154     /* create available cursors */
 155     cursors[OB_CURSOR_NONE] = None;
 156     cursors[OB_CURSOR_POINTER] =
 157         XCreateFontCursor(ob_display, XC_left_ptr);
 158     cursors[OB_CURSOR_BUSY] =
 159         XCreateFontCursor(ob_display, XC_watch);
 160     cursors[OB_CURSOR_MOVE] =
 161         XCreateFontCursor(ob_display, XC_fleur);
 162     cursors[OB_CURSOR_NORTH] =
 163         XCreateFontCursor(ob_display, XC_top_side);
 164     cursors[OB_CURSOR_NORTHEAST] =
 165         XCreateFontCursor(ob_display, XC_top_right_corner);
 166     cursors[OB_CURSOR_EAST] =
 167         XCreateFontCursor(ob_display, XC_right_side);
 168     cursors[OB_CURSOR_SOUTHEAST] =
 169         XCreateFontCursor(ob_display, XC_bottom_right_corner);
 170     cursors[OB_CURSOR_SOUTH] =
 171         XCreateFontCursor(ob_display, XC_bottom_side);
 172     cursors[OB_CURSOR_SOUTHWEST] =
 173         XCreateFontCursor(ob_display, XC_bottom_left_corner);
 174     cursors[OB_CURSOR_WEST] =
 175         XCreateFontCursor(ob_display, XC_left_side);
 176     cursors[OB_CURSOR_NORTHWEST] =
 177         XCreateFontCursor(ob_display, XC_top_left_corner);
 178
 179     /* create available keycodes */
 180     keys[OB_KEY_RETURN] =
 181         XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
 182     keys[OB_KEY_ESCAPE] =
 183         XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
 184     keys[OB_KEY_LEFT] =
 185         XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
 186     keys[OB_KEY_RIGHT] =
 187         XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
 188     keys[OB_KEY_UP] =
 189         XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
 190     keys[OB_KEY_DOWN] =
 191         XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
 192
 193     prop_startup(); /* get atoms values for the display */
 194     extensions_query_all(); /* find which extensions are present */
 195
 196     if (screen_annex()) { /* it will be ours! */
 197         do {
 198             Window reconfig_window;
 199             Popup *reconfig_popup;
 200
 201             if (reconfigure) {
 202                 gint w, h;
 203
 204                 w = WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen));
 205                 h = HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen));
 206
 207                 reconfig_popup = popup_new(FALSE);
 208                 popup_position(reconfig_popup, CenterGravity, w / 2, h / 2);
 209                 popup_show(reconfig_popup, _("Reloading . . ."), NULL);
 210
 211                 reconfig_window = XCreateWindow
 212                     (ob_display, RootWindow(ob_display, ob_screen),
 213                      0, 0, w, h,
 214                      0, CopyFromParent, InputOnly, CopyFromParent, 0, NULL);
 215                 XMapWindow(ob_display, reconfig_window);
 216
 217                 XFlush(ob_display);
 218             }
 219
 220             event_startup(reconfigure);
 221             grab_startup(reconfigure);
 222             /* focus_backup is used for stacking, so this needs to come before
 223                anything that calls stacking_add */
 224             focus_startup(reconfigure);
 225             window_startup(reconfigure);
 226             sn_startup(reconfigure);
 227
 228             {
 229                 ObParseInst *i;
 230                 xmlDocPtr doc;
 231                 xmlNodePtr node;
 232
 233                 /* startup the parsing so everything can register sections
 234                    of the rc */
 235                 i = parse_startup();
 236
 237                 config_startup(i);
 238                 /* parse/load user options */
 239                 if (parse_load_rc(&doc, &node))
 240                     parse_tree(i, doc, node->xmlChildrenNode);
 241                 /* we're done with parsing now, kill it */
 242                 xmlFreeDoc(doc);
 243                 parse_shutdown(i);
 244             }
 245
 246             /* load the theme specified in the rc file */
 247             ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 248             if (ob_rr_theme == NULL)
 249                 ob_exit_with_error("Unable to load a theme.");
 250
 251             moveresize_startup(reconfigure);
 252             screen_startup(reconfigure);
 253             group_startup(reconfigure);
 254             client_startup(reconfigure);
 255             dock_startup(reconfigure);
 256             keyboard_startup(reconfigure);
 257             mouse_startup(reconfigure);
 258             menu_startup(reconfigure);
 259
 260             if (!reconfigure) {
 261                 /* get all the existing windows */
 262                 client_manage_all();
 263             } else {
 264                 GList *it;
 265
 266                 /* redecorate all existing windows */
 267                 for (it = client_list; it; it = g_list_next(it)) {
 268                     ObClient *c = it->data;
 269                     frame_adjust_theme(c->frame);
 270                 }
 271
 272                 XFlush(ob_display);
 273
 274                 /* destroy the hiding window */
 275                 XDestroyWindow(ob_display, reconfig_window);
 276                 popup_free(reconfig_popup);
 277             }
 278
 279             reconfigure = FALSE;
 280
 281             state = OB_STATE_RUNNING;
 282             ob_main_loop_run(ob_main_loop);
 283             state = OB_STATE_EXITING;
 284
 285             if (!reconfigure) {
 286                 dock_remove_all();
 287                 client_unmanage_all();
 288             }
 289
 290             menu_shutdown(reconfigure);
 291             mouse_shutdown(reconfigure);
 292             keyboard_shutdown(reconfigure);
 293             dock_shutdown(reconfigure);
 294             client_shutdown(reconfigure);
 295             group_shutdown(reconfigure);
 296             screen_shutdown(reconfigure);
 297             focus_shutdown(reconfigure);
 298             moveresize_shutdown(reconfigure);
 299             sn_shutdown(reconfigure);
 300             window_shutdown(reconfigure);
 301             grab_shutdown(reconfigure);
 302             event_shutdown(reconfigure);
 303             config_shutdown();
 304         } while (reconfigure);
 305     }
 306
 307     RrThemeFree(ob_rr_theme);
 308     RrInstanceFree(ob_rr_inst);
 309
 310     session_shutdown();
 311     g_free(ob_sm_id);
 312
 313     XCloseDisplay(ob_display);
 314
 315     if (restart) {
 316         if (restart_path != NULL) {
 317             int argcp;
 318             char **argvp;
 319             GError *err = NULL;
 320
 321             /* run other shit */
 322             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
 323                 execvp(argvp[0], argvp);
 324                 g_strfreev(argvp);
 325             } else {
 326                 g_warning("failed to execute '%s': %s", restart_path,
 327                           err->message);
 328             }
 329         }
 330
 331         /* re-run me */
 332         execvp(argv[0], argv); /* try how we were run */
 333     }
 334
 335     return 0;
 336 }
 337
 338 static void signal_handler(int signal, gpointer data)
 339 {
 340     if (signal == SIGUSR1) {
 341         fprintf(stderr, "Caught signal %d. Restarting.\n", signal);
 342         ob_restart();
 343     } else if (signal == SIGUSR2) {
 344         fprintf(stderr, "Caught signal %d. Reconfiguring.\n", signal);
 345         ob_reconfigure();
 346     } else {
 347         fprintf(stderr, "Caught signal %d. Exiting.\n", signal);
 348         ob_exit();
 349     }
 350 }
 351
 352 static void print_version()
 353 {
 354     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 355     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 356     g_print("This is free software, and you are welcome to redistribute it\n");
 357     g_print("under certain conditions. See the file COPYING for details.\n\n");
 358 }
 359
 360 static void print_help()
 361 {
 362     print_version();
 363     g_print("Syntax: openbox [options]\n\n");
 364     g_print("Options:\n\n");
 365 #ifdef USE_SM
 366     g_print("  --sm-disable        Disable connection to session manager\n");
 367     g_print("  --sm-client-id ID   Specify session management ID\n");
 368     g_print("  --sm-save-file FILE Specify file to load a saved session\n"
 369             "                      from\n");
 370 #endif
 371     g_print("  --replace           Replace the currently running window "
 372             "manager\n");
 373     g_print("  --help              Display this help and exit\n");
 374     g_print("  --version           Display the version and exit\n");
 375     g_print("  --sync              Run in synchronous mode (this is slow and\n"
 376             "                      meant for debugging X routines)\n");
 377     g_print("  --debug             Display debugging output\n");
 378     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 379 }
 380
 381 static void parse_args(int argc, char **argv)
 382 {
 383     int i;
 384
 385     for (i = 1; i < argc; ++i) {
 386         if (!strcmp(argv[i], "--version")) {
 387             print_version();
 388             exit(0);
 389         } else if (!strcmp(argv[i], "--help")) {
 390             print_help();
 391             exit(0);
 392         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
 393             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
 394         } else if (!strcmp(argv[i], "--replace")) {
 395             ob_replace_wm = TRUE;
 396         } else if (!strcmp(argv[i], "--sync")) {
 397             xsync = TRUE;
 398         } else if (!strcmp(argv[i], "--debug")) {
 399             ob_debug_show_output(TRUE);
 400 #ifdef USE_SM
 401         } else if (!strcmp(argv[i], "--sm-client-id")) {
 402             if (i == argc - 1) /* no args left */
 403                 g_printerr(_("--sm-client-id requires an argument\n"));
 404             else
 405                 ob_sm_id = g_strdup(argv[++i]);
 406         } else if (!strcmp(argv[i], "--sm-save-file")) {
 407             if (i == argc - 1) /* no args left */
 408                 g_printerr(_("--sm-save-file requires an argument\n"));
 409             else
 410                 sm_save_file = argv[++i];
 411         } else if (!strcmp(argv[i], "--sm-disable")) {
 412             ob_sm_use = FALSE;
 413 #endif
 414         } else {
 415             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 416             print_help();
 417             exit(1);
 418         }
 419     }
 420 }
 421
 422 void ob_exit_with_error(gchar *msg)
 423 {
 424     g_critical(msg);
 425     session_shutdown();
 426     exit(EXIT_FAILURE);
 427 }
 428
 429 void ob_restart_other(const gchar *path)
 430 {
 431     restart_path = g_strdup(path);
 432     ob_restart();
 433 }
 434
 435 void ob_restart()
 436 {
 437     restart = TRUE;
 438     ob_exit();
 439 }
 440
 441 void ob_exit()
 442 {
 443     ob_main_loop_exit(ob_main_loop);
 444 }
 445
 446 Cursor ob_cursor(ObCursor cursor)
 447 {
 448     g_assert(cursor < OB_NUM_CURSORS);
 449     return cursors[cursor];
 450 }
 451
 452 KeyCode ob_keycode(ObKey key)
 453 {
 454     g_assert(key < OB_NUM_KEYS);
 455     return keys[key];
 456 }
 457
 458 ObState ob_state()
 459 {
 460     return state;
 461 }
 462
 463 gchar *ob_expand_tilde(const gchar *f)
 464 {
 465     gchar **spl;
 466     gchar *ret, *mid;
 467
 468     if (!f)
 469         return NULL;
 470     spl = g_strsplit(f, "~", 0);
 471     mid = g_strconcat(g_get_home_dir(), G_DIR_SEPARATOR_S, NULL);
 472     ret = g_strjoinv(mid, spl);
 473     g_free(mid);
 474     g_strfreev(spl);
 475     return ret;
 476 }
 477
 478 void ob_reconfigure()
 479 {
 480     reconfigure = TRUE;
 481     ob_exit();
 482 }