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