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     session_startup(&argc, &argv);
 105
 106     /* parse out command line args */
 107     parse_args(argc, argv);
 108
 109     ob_display = XOpenDisplay(NULL);
 110     if (ob_display == NULL)
 111         ob_exit_with_error("Failed to open the display.");
 112     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 113         ob_exit_with_error("Failed to set display as close-on-exec.");
 114
 115     ob_main_loop = ob_main_loop_new(ob_display);
 116
 117     /* set up signal handler */
 118     ob_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL, NULL);
 119     ob_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL, NULL);
 120     ob_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL, NULL);
 121     ob_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL, NULL);
 122     ob_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL, NULL);
 123     ob_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL, NULL);
 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             {
 193                 ObParseInst *i;
 194                 xmlDocPtr doc;
 195                 xmlNodePtr node;
 196
 197                 /* startup the parsing so everything can register sections
 198                    of the rc */
 199                 i = parse_startup();
 200
 201                 config_startup(i);
 202                 /* parse/load user options */
 203                 if (parse_load_rc(&doc, &node))
 204                     parse_tree(i, doc, node->xmlChildrenNode);
 205                 /* we're done with parsing now, kill it */
 206                 xmlFreeDoc(doc);
 207                 parse_shutdown(i);
 208             }
 209
 210             /* load the theme specified in the rc file */
 211             {
 212                 RrTheme *theme;
 213                 if ((theme = RrThemeNew(ob_rr_inst, config_theme))) {
 214                     RrThemeFree(ob_rr_theme);
 215                     ob_rr_theme = theme;
 216                 }
 217                 if (ob_rr_theme == NULL)
 218                     ob_exit_with_error("Unable to load a theme.");
 219             }
 220
 221             if (reconfigure) {
 222                 GList *it;
 223
 224                 /* update all existing windows for the new theme */
 225                 for (it = client_list; it; it = g_list_next(it)) {
 226                     ObClient *c = it->data;
 227                     frame_adjust_theme(c->frame);
 228                 }
 229             }
 230             event_startup(reconfigure);
 231             grab_startup(reconfigure);
 232             /* focus_backup is used for stacking, so this needs to come before
 233                anything that calls stacking_add */
 234             focus_startup(reconfigure);
 235             window_startup(reconfigure);
 236             sn_startup(reconfigure);
 237             screen_startup(reconfigure);
 238             group_startup(reconfigure);
 239             client_startup(reconfigure);
 240             dock_startup(reconfigure);
 241             moveresize_startup(reconfigure);
 242             keyboard_startup(reconfigure);
 243             mouse_startup(reconfigure);
 244             menu_startup(reconfigure);
 245
 246             if (!reconfigure) {
 247                 /* get all the existing windows */
 248                 client_manage_all();
 249             } else {
 250                 GList *it;
 251
 252                 /* redecorate all existing windows */
 253                 for (it = client_list; it; it = g_list_next(it)) {
 254                     ObClient *c = it->data;
 255                     frame_adjust_area(c->frame, TRUE, TRUE, FALSE);
 256                 }
 257             }
 258
 259             reconfigure = FALSE;
 260
 261             state = OB_STATE_RUNNING;
 262             ob_main_loop_run(ob_main_loop);
 263             state = OB_STATE_EXITING;
 264
 265             if (!reconfigure) {
 266                 dock_remove_all();
 267                 client_unmanage_all();
 268             }
 269
 270             menu_shutdown(reconfigure);
 271             mouse_shutdown(reconfigure);
 272             keyboard_shutdown(reconfigure);
 273             moveresize_shutdown(reconfigure);
 274             dock_shutdown(reconfigure);
 275             client_shutdown(reconfigure);
 276             group_shutdown(reconfigure);
 277             screen_shutdown(reconfigure);
 278             focus_shutdown(reconfigure);
 279             sn_shutdown(reconfigure);
 280             window_shutdown(reconfigure);
 281             grab_shutdown(reconfigure);
 282             event_shutdown(reconfigure);
 283             config_shutdown();
 284         } while (reconfigure);
 285     }
 286
 287     RrThemeFree(ob_rr_theme);
 288     RrInstanceFree(ob_rr_inst);
 289
 290     session_shutdown();
 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         execlp(argv[0], g_path_get_basename(argv[0])); /* last resort */
 313     }
 314
 315     return 0;
 316 }
 317
 318 static void signal_handler(int signal, gpointer data)
 319 {
 320     if (signal == SIGUSR1) {
 321         fprintf(stderr, "Caught signal %d. Restarting.\n", signal);
 322         ob_restart();
 323     } else if (signal == SIGUSR2) {
 324         fprintf(stderr, "Caught signal %d. Reconfiguring.\n", signal);
 325         ob_reconfigure();
 326     } else {
 327         fprintf(stderr, "Caught signal %d. Exiting.\n", signal);
 328         ob_exit();
 329     }
 330 }
 331
 332 static void print_version()
 333 {
 334     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 335     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 336     g_print("This is free software, and you are welcome to redistribute it\n");
 337     g_print("under certain conditions. See the file COPYING for details.\n\n");
 338 }
 339
 340 static void print_help()
 341 {
 342     print_version();
 343     g_print("Syntax: openbox [options]\n\n");
 344     g_print("Options:\n\n");
 345 #ifdef USE_SM
 346     g_print("  --sm-disable        Disable connection to session manager\n");
 347     g_print("  --sm-client-id ID   Specify session management ID\n");
 348     g_print("  --sm-save-file FILE Specify file to load a saved session\n"
 349             "                      from\n");
 350 #endif
 351     g_print("  --replace           Replace the currently running window "
 352             "manager\n");
 353     g_print("  --help              Display this help and exit\n");
 354     g_print("  --version           Display the version and exit\n");
 355     g_print("  --sync              Run in synchronous mode (this is slow and\n"
 356             "                      meant for debugging X routines)\n");
 357     g_print("  --debug             Display debugging output\n");
 358     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 359 }
 360
 361 static void parse_args(int argc, char **argv)
 362 {
 363     int i;
 364
 365     for (i = 1; i < argc; ++i) {
 366         if (!strcmp(argv[i], "--version")) {
 367             print_version();
 368             exit(0);
 369         } else if (!strcmp(argv[i], "--help")) {
 370             print_help();
 371             exit(0);
 372         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
 373             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
 374         } else if (!strcmp(argv[i], "--replace")) {
 375             ob_replace_wm = TRUE;
 376         } else if (!strcmp(argv[i], "--sync")) {
 377             xsync = TRUE;
 378         } else if (!strcmp(argv[i], "--debug")) {
 379             ob_debug_show_output(TRUE);
 380         } else {
 381             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 382             print_help();
 383             exit(1);
 384         }
 385     }
 386 }
 387
 388 void ob_exit_with_error(gchar *msg)
 389 {
 390     g_critical(msg);
 391     session_shutdown();
 392     exit(EXIT_FAILURE);
 393 }
 394
 395 void ob_restart_other(const gchar *path)
 396 {
 397     restart_path = g_strdup(path);
 398     ob_restart();
 399 }
 400
 401 void ob_restart()
 402 {
 403     restart = TRUE;
 404     ob_exit();
 405 }
 406
 407 void ob_exit()
 408 {
 409     ob_main_loop_exit(ob_main_loop);
 410 }
 411
 412 Cursor ob_cursor(ObCursor cursor)
 413 {
 414     g_assert(cursor < OB_NUM_CURSORS);
 415     return cursors[cursor];
 416 }
 417
 418 KeyCode ob_keycode(ObKey key)
 419 {
 420     g_assert(key < OB_NUM_KEYS);
 421     return keys[key];
 422 }
 423
 424 ObState ob_state()
 425 {
 426     return state;
 427 }
 428
 429 gchar *ob_expand_tilde(const gchar *f)
 430 {
 431     gchar **spl;
 432     gchar *ret;
 433
 434     if (!f)
 435         return NULL;
 436     spl = g_strsplit(f, "~", 0);
 437     ret = g_strjoinv(g_get_home_dir(), spl);
 438     g_strfreev(spl);
 439     return ret;
 440 }
 441
 442 void ob_reconfigure()
 443 {
 444     reconfigure = TRUE;
 445     ob_exit();
 446 }