Dogcows Code - chaz/openbox/blob - openbox/openbox.c

   1 #include "openbox.h"
   2 #include "dock.h"
   3 #include "event.h"
   4 #include "menu.h"
   5 #include "client.h"
   6 #include "dispatch.h"
   7 #include "xerror.h"
   8 #include "prop.h"
   9 #include "startup.h"
  10 #include "screen.h"
  11 #include "focus.h"
  12 #include "moveresize.h"
  13 #include "frame.h"
  14 #include "extensions.h"
  15 #include "grab.h"
  16 #include "plugin.h"
  17 #include "timer.h"
  18 #include "group.h"
  19 #include "config.h"
  20 #include "gettext.h"
  21 #include "parser/parse.h"
  22 #include "render/render.h"
  23 #include "render/theme.h"
  24
  25 #ifdef HAVE_FCNTL_H
  26 #  include <fcntl.h>
  27 #endif
  28 #ifdef HAVE_SIGNAL_H
  29 #define __USE_UNIX98
  30 #  include <signal.h>
  31 #endif
  32 #ifdef HAVE_STDLIB_H
  33 #  include <stdlib.h>
  34 #endif
  35 #ifdef HAVE_LOCALE_H
  36 #  include <locale.h>
  37 #endif
  38 #ifdef HAVE_UNISTD_H
  39 #  include <unistd.h>
  40 #endif
  41 #ifdef HAVE_SYS_STAT_H
  42 #  include <sys/stat.h>
  43 #  include <sys/types.h>
  44 #endif
  45
  46 #ifdef USE_SM
  47 #include <X11/SM/SMlib.h>
  48 #endif
  49
  50 #include <X11/cursorfont.h>
  51
  52 #ifdef USE_SM
  53 gboolean    ob_sm_use = TRUE;
  54 SmcConn     ob_sm_conn;
  55 gchar      *ob_sm_id;
  56 #endif
  57
  58 RrInstance *ob_rr_inst;
  59 RrTheme    *ob_rr_theme;
  60 Display    *ob_display;
  61 gint        ob_screen;
  62 gboolean    ob_replace_wm;
  63
  64 static ObState   state;
  65 static gboolean  xsync;
  66 static gboolean  shutdown;
  67 static gboolean  restart;
  68 static char     *restart_path;
  69 static Cursor    cursors[OB_NUM_CURSORS];
  70 static KeyCode   keys[OB_NUM_KEYS];
  71
  72 static void signal_handler(const ObEvent *e, void *data);
  73 static void parse_args(int argc, char **argv);
  74
  75 static void sm_startup(int argc, char **argv);
  76 static void sm_shutdown();
  77
  78 #ifdef USE_SM
  79 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
  80                              Bool shutdown, int interact_style, Bool fast);
  81 static void sm_die(SmcConn conn, SmPointer data);
  82 static void sm_save_complete(SmcConn conn, SmPointer data);
  83 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data);
  84 #endif
  85 static void exit_with_error(gchar *msg);
  86
  87 int main(int argc, char **argv)
  88 {
  89     struct sigaction action;
  90     sigset_t sigset;
  91     char *path;
  92     xmlDocPtr doc;
  93     xmlNodePtr node;
  94
  95     state = OB_STATE_STARTING;
  96
  97     /* initialize the locale */
  98     if (!setlocale(LC_ALL, ""))
  99         g_warning("Couldn't set locale from environment.\n");
 100     bindtextdomain(PACKAGE_NAME, LOCALEDIR);
 101     bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
 102     textdomain(PACKAGE_NAME);
 103
 104     /* start our event dispatcher and register for signals */
 105     dispatch_startup();
 106     dispatch_register(Event_Signal, signal_handler, NULL);
 107
 108     /* set up signal handler */
 109     sigemptyset(&sigset);
 110     action.sa_handler = dispatch_signal;
 111     action.sa_mask = sigset;
 112     action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
 113     sigaction(SIGUSR1, &action, (struct sigaction *) NULL);
 114     sigaction(SIGPIPE, &action, (struct sigaction *) NULL);
 115 /*    sigaction(SIGSEGV, &action, (struct sigaction *) NULL);*/
 116     sigaction(SIGFPE, &action, (struct sigaction *) NULL);
 117     sigaction(SIGTERM, &action, (struct sigaction *) NULL);
 118     sigaction(SIGINT, &action, (struct sigaction *) NULL);
 119     sigaction(SIGHUP, &action, (struct sigaction *) NULL);
 120
 121     /* create the ~/.openbox dir */
 122     path = g_build_filename(g_get_home_dir(), ".openbox", NULL);
 123     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 124                  S_IROTH | S_IWOTH | S_IXOTH));
 125     g_free(path);
 126     /* create the ~/.openbox/themes dir */
 127     path = g_build_filename(g_get_home_dir(), ".openbox", "themes", NULL);
 128     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 129                  S_IROTH | S_IWOTH | S_IXOTH));
 130     g_free(path);
 131
 132     g_set_prgname(argv[0]);
 133
 134     /* parse out command line args */
 135     parse_args(argc, argv);
 136
 137     ob_display = XOpenDisplay(NULL);
 138     if (ob_display == NULL)
 139         exit_with_error("Failed to open the display.");
 140     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 141         exit_with_error("Failed to set display as close-on-exec.");
 142
 143     sm_startup(argc, argv);
 144
 145 #ifdef USE_LIBSN
 146     ob_sn_display = sn_display_new(ob_display, NULL, NULL);
 147 #endif
 148
 149     ob_screen = DefaultScreen(ob_display);
 150
 151     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 152     if (ob_rr_inst == NULL)
 153         exit_with_error("Failed to initialize the render library.");
 154
 155     /* XXX fork self onto other screens */
 156
 157     XSynchronize(ob_display, xsync);
 158
 159     /* check for locale support */
 160     if (!XSupportsLocale())
 161         g_warning("X server does not support locale.");
 162     if (!XSetLocaleModifiers(""))
 163         g_warning("Cannot set locale modifiers for the X server.");
 164
 165     /* set our error handler */
 166     XSetErrorHandler(xerror_handler);
 167
 168     /* set the DISPLAY environment variable for any lauched children, to the
 169        display we're using, so they open in the right place. */
 170     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 171
 172     /* create available cursors */
 173     cursors[OB_CURSOR_POINTER] =
 174         XCreateFontCursor(ob_display, XC_left_ptr);
 175     cursors[OB_CURSOR_BUSY] =
 176         XCreateFontCursor(ob_display, XC_watch);
 177     cursors[OB_CURSOR_MOVE] =
 178         XCreateFontCursor(ob_display, XC_fleur);
 179     cursors[OB_CURSOR_NORTH] =
 180         XCreateFontCursor(ob_display, XC_top_side);
 181     cursors[OB_CURSOR_NORTHEAST] =
 182         XCreateFontCursor(ob_display, XC_top_right_corner);
 183     cursors[OB_CURSOR_EAST] =
 184         XCreateFontCursor(ob_display, XC_right_side);
 185     cursors[OB_CURSOR_SOUTHEAST] =
 186         XCreateFontCursor(ob_display, XC_bottom_right_corner);
 187     cursors[OB_CURSOR_SOUTH] =
 188         XCreateFontCursor(ob_display, XC_bottom_side);
 189     cursors[OB_CURSOR_SOUTHWEST] =
 190         XCreateFontCursor(ob_display, XC_bottom_left_corner);
 191     cursors[OB_CURSOR_WEST] =
 192         XCreateFontCursor(ob_display, XC_left_side);
 193     cursors[OB_CURSOR_NORTHWEST] =
 194         XCreateFontCursor(ob_display, XC_top_left_corner);
 195
 196     /* create available keycodes */
 197     keys[OB_KEY_RETURN] =
 198         XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
 199     keys[OB_KEY_ESCAPE] =
 200         XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
 201     keys[OB_KEY_LEFT] =
 202         XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
 203     keys[OB_KEY_RIGHT] =
 204         XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
 205     keys[OB_KEY_UP] =
 206         XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
 207     keys[OB_KEY_DOWN] =
 208         XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
 209
 210     prop_startup(); /* get atoms values for the display */
 211     extensions_query_all(); /* find which extensions are present */
 212
 213     /* save stuff that we can use to restore state */
 214     startup_save();
 215
 216     if (screen_annex()) { /* it will be ours! */
 217         /* startup the parsing so everything can register sections of the rc */
 218         parse_startup();
 219
 220         /* anything that is going to read data from the rc file needs to be
 221            in this group */
 222         timer_startup();
 223         event_startup();
 224         grab_startup();
 225         /* focus_backup is used for stacking, so this needs to come before
 226            anything that calls stacking_add */
 227         focus_startup();
 228         window_startup();
 229         plugin_startup();
 230         /* load the plugins specified in the pluginrc */
 231         plugin_loadall();
 232
 233         /* set up the kernel config shit */
 234         config_startup();
 235         menu_startup();
 236         /* parse/load user options */
 237         if (parse_load_rc(&doc, &node))
 238             parse_tree(doc, node->xmlChildrenNode, NULL);
 239         /* we're done with parsing now, kill it */
 240         parse_shutdown();
 241
 242         /* load the theme specified in the rc file */
 243         ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 244         if (ob_rr_theme == NULL)
 245             exit_with_error("Unable to load a theme.");
 246
 247         moveresize_startup();
 248         screen_startup();
 249         group_startup();
 250         client_startup();
 251         dock_startup();
 252
 253         /* call startup for all the plugins */
 254         plugin_startall();
 255
 256         /* get all the existing windows */
 257         client_manage_all();
 258
 259         state = OB_STATE_RUNNING;
 260         while (!shutdown)
 261             event_loop();
 262         state = OB_STATE_EXITING;
 263
 264         dock_remove_all();
 265         client_unmanage_all();
 266
 267         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 268         dock_shutdown();
 269         client_shutdown();
 270         group_shutdown();
 271         screen_shutdown();
 272         focus_shutdown();
 273         moveresize_shutdown();
 274         menu_shutdown();
 275         window_shutdown();
 276         grab_shutdown();
 277         event_shutdown();
 278         timer_shutdown();
 279         config_shutdown();
 280     }
 281
 282     dispatch_shutdown();
 283
 284     RrThemeFree(ob_rr_theme);
 285     RrInstanceFree(ob_rr_inst);
 286
 287     sm_shutdown();
 288
 289     XCloseDisplay(ob_display);
 290
 291     if (restart) {
 292         if (restart_path != NULL) {
 293             int argcp;
 294             char **argvp;
 295             GError *err = NULL;
 296
 297             /* run other shit */
 298             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
 299                 execvp(argvp[0], argvp);
 300                 g_strfreev(argvp);
 301             } else {
 302                 g_warning("failed to execute '%s': %s", restart_path,
 303                           err->message);
 304             }
 305         }
 306
 307         /* re-run me */
 308         execvp(argv[0], argv); /* try how we were run */
 309     }
 310
 311     return 0;
 312 }
 313
 314 static void sm_startup(int argc, char **argv)
 315 {
 316 #ifdef USE_SM
 317
 318 #define SM_ERR_LEN 1024
 319
 320     SmcCallbacks cb;
 321     char sm_err[SM_ERR_LEN];
 322
 323     cb.save_yourself.callback = sm_save_yourself;
 324     cb.save_yourself.client_data = NULL;
 325
 326     cb.die.callback = sm_die;
 327     cb.die.client_data = NULL;
 328
 329     cb.save_complete.callback = sm_save_complete;
 330     cb.save_complete.client_data = NULL;
 331
 332     cb.shutdown_cancelled.callback = sm_shutdown_cancelled;
 333     cb.shutdown_cancelled.client_data = NULL;
 334
 335     ob_sm_conn = SmcOpenConnection(NULL, NULL, 1, 0,
 336                                    SmcSaveYourselfProcMask |
 337                                    SmcDieProcMask |
 338                                    SmcSaveCompleteProcMask |
 339                                    SmcShutdownCancelledProcMask,
 340                                    &cb, ob_sm_id, &ob_sm_id,
 341                                    SM_ERR_LEN, sm_err);
 342     if (ob_sm_conn == NULL)
 343         g_warning("Failed to connect to session manager: %s", sm_err);
 344     else {
 345         SmPropValue val_prog;
 346         SmPropValue val_uid;
 347         SmPropValue val_hint;
 348         SmPropValue val_pri;
 349         SmPropValue val_pid;
 350         SmProp prop_cmd = { SmCloneCommand, SmLISTofARRAY8, 1, };
 351         SmProp prop_res = { SmRestartCommand, SmLISTofARRAY8, };
 352         SmProp prop_prog = { SmProgram, SmARRAY8, 1, };
 353         SmProp prop_uid = { SmUserID, SmARRAY8, 1, };
 354         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 355         SmProp prop_pid = { SmProcessID, SmARRAY8, 1, };
 356         SmProp prop_pri = { "_GSM_Priority", SmCARD8, 1, };
 357         SmProp *props[7];
 358         gulong hint, pri;
 359         gchar pid[32];
 360         gint i, j;
 361         gboolean has_id;
 362
 363         for (i = 1; i < argc - 1; ++i)
 364             if (strcmp(argv[i], "--sm-client-id") == 0)
 365                 break;
 366         has_id = (i < argc - 1);
 367
 368         prop_cmd.vals = g_new(SmPropValue, (has_id ? argc-2 : argc));
 369         prop_cmd.num_vals = (has_id ? argc-2 : argc);
 370         for (i = 0, j = 0; i < argc; ++i, ++j) {
 371             if (strcmp (argv[i], "--sm-client-id") == 0) {
 372                 ++i, --j; /* skip the next as well, keep j where it is */
 373             } else {
 374                 prop_cmd.vals[j].value = argv[i];
 375                 prop_cmd.vals[j].length = strlen(argv[i]);
 376             }
 377         }
 378
 379         prop_res.vals = g_new(SmPropValue, (has_id ? argc : argc+2));
 380         prop_res.num_vals = (has_id ? argc : argc+2);
 381         for (i = 0, j = 0; i < argc; ++i, ++j) {
 382             if (strcmp (argv[i], "--sm-client-id") == 0) {
 383                 ++i, --j; /* skip the next as well, keep j where it is */
 384             } else {
 385                 prop_res.vals[j].value = argv[i];
 386                 prop_res.vals[j].length = strlen(argv[i]);
 387             }
 388         }
 389         prop_res.vals[j].value = "--sm-client-id";
 390         prop_res.vals[j++].length = strlen("--sm-client-id");
 391         prop_res.vals[j].value = ob_sm_id;
 392         prop_res.vals[j++].length = strlen(ob_sm_id);
 393
 394         val_prog.value = argv[0];
 395         val_prog.length = strlen(argv[0]);
 396
 397         val_uid.value = g_strdup(g_get_user_name());
 398         val_uid.length = strlen(val_uid.value);
 399
 400         hint = SmRestartImmediately;
 401         val_hint.value = &hint;
 402         val_hint.length = 1;
 403
 404         sprintf(pid, "%ld", (long)getpid());
 405         val_pid.value = pid;
 406         val_pid.length = strlen(pid);
 407
 408         /* priority with gnome-session-manager, low to run before other apps */
 409         pri = 20;
 410         val_pri.value = &pri;
 411         val_pri.length = 1;
 412
 413         prop_prog.vals = &val_prog;
 414         prop_uid.vals = &val_uid;
 415         prop_hint.vals = &val_hint;
 416         prop_pid.vals = &val_pid;
 417         prop_pri.vals = &val_pri;
 418
 419         props[0] = &prop_prog;
 420         props[1] = &prop_cmd;
 421         props[2] = &prop_res;
 422         props[3] = &prop_uid;
 423         props[4] = &prop_hint;
 424         props[5] = &prop_pid;
 425         props[6] = &prop_pri;
 426
 427         SmcSetProperties(ob_sm_conn, 7, props);
 428
 429         g_free(val_uid.value);
 430         g_free(prop_cmd.vals);
 431         g_free(prop_res.vals);
 432
 433         g_message("Connected to session manager with id %s", ob_sm_id);
 434     }
 435     g_free (ob_sm_id);
 436 #endif
 437 }
 438
 439 static void sm_shutdown()
 440 {
 441 #ifdef USE_SM
 442     if (ob_sm_conn) {
 443         SmPropValue val_hint;
 444         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 445         SmProp *props[1];
 446         gulong hint;
 447
 448         /* when we exit, we want to reset this to a more friendly state */
 449         hint = SmRestartIfRunning;
 450         val_hint.value = &hint;
 451         val_hint.length = 1;
 452
 453         prop_hint.vals = &val_hint;
 454
 455         props[0] = &prop_hint;
 456
 457         SmcSetProperties(ob_sm_conn, 1, props);
 458
 459         SmcCloseConnection(ob_sm_conn, 0, NULL);
 460     }
 461 #endif
 462 }
 463
 464 static void signal_handler(const ObEvent *e, void *data)
 465 {
 466     int s;
 467
 468     s = e->data.s.signal;
 469     switch (s) {
 470     case SIGUSR1:
 471         fprintf(stderr, "Caught SIGUSR1 signal. Restarting.");
 472         ob_restart();
 473         break;
 474
 475     case SIGHUP:
 476     case SIGINT:
 477     case SIGTERM:
 478     case SIGPIPE:
 479         fprintf(stderr, "Caught signal %d. Exiting.", s);
 480         ob_exit();
 481         break;
 482
 483     case SIGFPE:
 484     case SIGSEGV:
 485         fprintf(stderr, "Caught signal %d. Aborting and dumping core.", s);
 486         abort();
 487     }
 488 }
 489
 490 static void print_version()
 491 {
 492     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 493     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 494     g_print("This is free software, and you are welcome to redistribute it\n");
 495     g_print("under certain conditions. See the file COPYING for details.\n\n");
 496 }
 497
 498 static void print_help()
 499 {
 500     print_version();
 501     g_print("Syntax: openbox [options]\n\n");
 502     g_print("Options:\n\n");
 503 #ifdef USE_SM
 504     g_print("  --sm-client-id ID  Specify session management ID\n");
 505     g_print("  --sm-disable       Disable connection to session manager\n");
 506 #endif
 507     g_print("  --replace          Replace the currently running window "
 508             "manager\n");
 509     g_print("  --help             Display this help and exit\n");
 510     g_print("  --version          Display the version and exit\n");
 511     g_print("  --sync             Run in synchronous mode (this is slow and\n"
 512             "                     meant for debugging X routines)\n");
 513     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 514 }
 515
 516 static void parse_args(int argc, char **argv)
 517 {
 518     int i;
 519
 520     for (i = 1; i < argc; ++i) {
 521         if (!strcmp(argv[i], "--version")) {
 522             print_version();
 523             exit(0);
 524         } else if (!strcmp(argv[i], "--help")) {
 525             print_help();
 526             exit(0);
 527         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
 528             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
 529         } else if (!strcmp(argv[i], "--replace")) {
 530             ob_replace_wm = TRUE;
 531         } else if (!strcmp(argv[i], "--sync")) {
 532             xsync = TRUE;
 533 #ifdef USE_SM
 534         } else if (!strcmp(argv[i], "--sm-client-id")) {
 535             if (i == argc - 1) /* no args left */
 536                 g_printerr(_("--sm-client-id requires an argument\n"));
 537             else
 538                 ob_sm_id = argv[++i];
 539         } else if (!strcmp(argv[i], "--sm-disable")) {
 540             ob_sm_use = FALSE;
 541 #endif
 542         } else {
 543             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 544             print_help();
 545             exit(1);
 546         }
 547     }
 548 }
 549
 550 #ifdef USE_SM
 551 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
 552                              Bool shutdown, int interact_style, Bool fast)
 553 {
 554     g_message("got SAVE YOURSELF from session manager");
 555     SmcSaveYourselfDone(conn, TRUE);
 556 }
 557
 558 static void sm_die(SmcConn conn, SmPointer data)
 559 {
 560     ob_exit();
 561     g_message("got DIE from session manager");
 562 }
 563
 564 static void sm_save_complete(SmcConn conn, SmPointer data)
 565 {
 566     g_message("got SAVE COMPLETE from session manager");
 567 }
 568
 569 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data)
 570 {
 571     g_message("got SHUTDOWN CANCELLED from session manager");
 572 }
 573 #endif
 574
 575 static void exit_with_error(gchar *msg)
 576 {
 577     g_critical(msg);
 578     sm_shutdown();
 579     exit(EXIT_FAILURE);
 580 }
 581
 582 void ob_restart_other(const gchar *path)
 583 {
 584     restart_path = g_strdup(path);
 585     ob_restart();
 586 }
 587
 588 void ob_restart()
 589 {
 590     restart = TRUE;
 591     ob_exit();
 592 }
 593
 594 void ob_exit()
 595 {
 596     shutdown = TRUE;
 597 }
 598
 599 Cursor ob_cursor(ObCursor cursor)
 600 {
 601     g_assert(cursor < OB_NUM_CURSORS);
 602     return cursors[cursor];
 603 }
 604
 605 KeyCode ob_keycode(ObKey key)
 606 {
 607     g_assert(key < OB_NUM_KEYS);
 608     return keys[key];
 609 }
 610
 611 ObState ob_state()
 612 {
 613     return state;
 614 }