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

   1 #include "debug.h"
   2 #include "openbox.h"
   3 #include "dock.h"
   4 #include "event.h"
   5 #include "menu.h"
   6 #include "client.h"
   7 #include "dispatch.h"
   8 #include "xerror.h"
   9 #include "prop.h"
  10 #include "startup.h"
  11 #include "screen.h"
  12 #include "focus.h"
  13 #include "moveresize.h"
  14 #include "frame.h"
  15 #include "extensions.h"
  16 #include "grab.h"
  17 #include "plugin.h"
  18 #include "timer.h"
  19 #include "group.h"
  20 #include "config.h"
  21 #include "gettext.h"
  22 #include "parser/parse.h"
  23 #include "render/render.h"
  24 #include "render/theme.h"
  25
  26 #ifdef HAVE_FCNTL_H
  27 #  include <fcntl.h>
  28 #endif
  29 #ifdef HAVE_SIGNAL_H
  30 #define __USE_UNIX98
  31 #  include <signal.h>
  32 #endif
  33 #ifdef HAVE_STDLIB_H
  34 #  include <stdlib.h>
  35 #endif
  36 #ifdef HAVE_LOCALE_H
  37 #  include <locale.h>
  38 #endif
  39 #ifdef HAVE_UNISTD_H
  40 #  include <unistd.h>
  41 #endif
  42 #ifdef HAVE_SYS_STAT_H
  43 #  include <sys/stat.h>
  44 #  include <sys/types.h>
  45 #endif
  46
  47 #ifdef USE_SM
  48 #include <X11/SM/SMlib.h>
  49 #endif
  50
  51 #include <X11/cursorfont.h>
  52
  53 #ifdef USE_SM
  54 gboolean    ob_sm_use = TRUE;
  55 SmcConn     ob_sm_conn;
  56 gchar      *ob_sm_id;
  57 #endif
  58
  59 RrInstance *ob_rr_inst;
  60 RrTheme    *ob_rr_theme;
  61 Display    *ob_display;
  62 gint        ob_screen;
  63 gboolean    ob_replace_wm;
  64
  65 static ObState   state;
  66 static gboolean  xsync;
  67 static gboolean  shutdown;
  68 static gboolean  restart;
  69 static char     *restart_path;
  70 static Cursor    cursors[OB_NUM_CURSORS];
  71 static KeyCode   keys[OB_NUM_KEYS];
  72
  73 static void signal_handler(const ObEvent *e, void *data);
  74 static void parse_args(int argc, char **argv);
  75
  76 static void sm_startup(int argc, char **argv);
  77 static void sm_shutdown();
  78
  79 #ifdef USE_SM
  80 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
  81                              Bool shutdown, int interact_style, Bool fast);
  82 static void sm_die(SmcConn conn, SmPointer data);
  83 static void sm_save_complete(SmcConn conn, SmPointer data);
  84 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data);
  85 #endif
  86 static void exit_with_error(gchar *msg);
  87
  88 int main(int argc, char **argv)
  89 {
  90     struct sigaction action;
  91     sigset_t sigset;
  92     char *path;
  93     xmlDocPtr doc;
  94     xmlNodePtr node;
  95
  96 #ifdef DEBUG
  97     ob_debug_show_output(TRUE);
  98 #endif
  99
 100     state = OB_STATE_STARTING;
 101
 102     /* initialize the locale */
 103     if (!setlocale(LC_ALL, ""))
 104         g_warning("Couldn't set locale from environment.\n");
 105     bindtextdomain(PACKAGE_NAME, LOCALEDIR);
 106     bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
 107     textdomain(PACKAGE_NAME);
 108
 109     /* start our event dispatcher and register for signals */
 110     dispatch_startup();
 111     dispatch_register(Event_Signal, signal_handler, NULL);
 112
 113     /* set up signal handler */
 114     sigemptyset(&sigset);
 115     action.sa_handler = dispatch_signal;
 116     action.sa_mask = sigset;
 117     action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
 118     sigaction(SIGUSR1, &action, (struct sigaction *) NULL);
 119     sigaction(SIGPIPE, &action, (struct sigaction *) NULL);
 120 /*    sigaction(SIGSEGV, &action, (struct sigaction *) NULL);*/
 121     sigaction(SIGFPE, &action, (struct sigaction *) NULL);
 122     sigaction(SIGTERM, &action, (struct sigaction *) NULL);
 123     sigaction(SIGINT, &action, (struct sigaction *) NULL);
 124     sigaction(SIGHUP, &action, (struct sigaction *) NULL);
 125
 126     /* create the ~/.openbox dir */
 127     path = g_build_filename(g_get_home_dir(), ".openbox", 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     /* create the ~/.openbox/themes dir */
 132     path = g_build_filename(g_get_home_dir(), ".openbox", "themes", NULL);
 133     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 134                  S_IROTH | S_IWOTH | S_IXOTH));
 135     g_free(path);
 136
 137     g_set_prgname(argv[0]);
 138
 139     /* parse out command line args */
 140     parse_args(argc, argv);
 141
 142     ob_display = XOpenDisplay(NULL);
 143     if (ob_display == NULL)
 144         exit_with_error("Failed to open the display.");
 145     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 146         exit_with_error("Failed to set display as close-on-exec.");
 147
 148     sm_startup(argc, argv);
 149
 150 #ifdef USE_LIBSN
 151     ob_sn_display = sn_display_new(ob_display, NULL, NULL);
 152 #endif
 153
 154     ob_screen = DefaultScreen(ob_display);
 155
 156     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 157     if (ob_rr_inst == NULL)
 158         exit_with_error("Failed to initialize the render library.");
 159
 160     /* XXX fork self onto other screens */
 161
 162     XSynchronize(ob_display, xsync);
 163
 164     /* check for locale support */
 165     if (!XSupportsLocale())
 166         g_warning("X server does not support locale.");
 167     if (!XSetLocaleModifiers(""))
 168         g_warning("Cannot set locale modifiers for the X server.");
 169
 170     /* set our error handler */
 171     XSetErrorHandler(xerror_handler);
 172
 173     /* set the DISPLAY environment variable for any lauched children, to the
 174        display we're using, so they open in the right place. */
 175     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 176
 177     /* create available cursors */
 178     cursors[OB_CURSOR_POINTER] =
 179         XCreateFontCursor(ob_display, XC_left_ptr);
 180     cursors[OB_CURSOR_BUSY] =
 181         XCreateFontCursor(ob_display, XC_watch);
 182     cursors[OB_CURSOR_MOVE] =
 183         XCreateFontCursor(ob_display, XC_fleur);
 184     cursors[OB_CURSOR_NORTH] =
 185         XCreateFontCursor(ob_display, XC_top_side);
 186     cursors[OB_CURSOR_NORTHEAST] =
 187         XCreateFontCursor(ob_display, XC_top_right_corner);
 188     cursors[OB_CURSOR_EAST] =
 189         XCreateFontCursor(ob_display, XC_right_side);
 190     cursors[OB_CURSOR_SOUTHEAST] =
 191         XCreateFontCursor(ob_display, XC_bottom_right_corner);
 192     cursors[OB_CURSOR_SOUTH] =
 193         XCreateFontCursor(ob_display, XC_bottom_side);
 194     cursors[OB_CURSOR_SOUTHWEST] =
 195         XCreateFontCursor(ob_display, XC_bottom_left_corner);
 196     cursors[OB_CURSOR_WEST] =
 197         XCreateFontCursor(ob_display, XC_left_side);
 198     cursors[OB_CURSOR_NORTHWEST] =
 199         XCreateFontCursor(ob_display, XC_top_left_corner);
 200
 201     /* create available keycodes */
 202     keys[OB_KEY_RETURN] =
 203         XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
 204     keys[OB_KEY_ESCAPE] =
 205         XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
 206     keys[OB_KEY_LEFT] =
 207         XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
 208     keys[OB_KEY_RIGHT] =
 209         XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
 210     keys[OB_KEY_UP] =
 211         XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
 212     keys[OB_KEY_DOWN] =
 213         XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
 214
 215     prop_startup(); /* get atoms values for the display */
 216     extensions_query_all(); /* find which extensions are present */
 217
 218     /* save stuff that we can use to restore state */
 219     startup_save();
 220
 221     if (screen_annex()) { /* it will be ours! */
 222         /* startup the parsing so everything can register sections of the rc */
 223         parse_startup();
 224
 225         /* anything that is going to read data from the rc file needs to be
 226            in this group */
 227         timer_startup();
 228         event_startup();
 229         grab_startup();
 230         /* focus_backup is used for stacking, so this needs to come before
 231            anything that calls stacking_add */
 232         focus_startup();
 233         window_startup();
 234         plugin_startup();
 235         /* load the plugins specified in the pluginrc */
 236         plugin_loadall();
 237
 238         /* set up the kernel config shit */
 239         config_startup();
 240         menu_startup();
 241         /* parse/load user options */
 242         if (parse_load_rc(&doc, &node))
 243             parse_tree(doc, node->xmlChildrenNode, NULL);
 244         /* we're done with parsing now, kill it */
 245         parse_shutdown();
 246
 247         /* load the theme specified in the rc file */
 248         ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 249         if (ob_rr_theme == NULL)
 250             exit_with_error("Unable to load a theme.");
 251
 252         moveresize_startup();
 253         screen_startup();
 254         group_startup();
 255         client_startup();
 256         dock_startup();
 257
 258         /* call startup for all the plugins */
 259         plugin_startall();
 260
 261         /* get all the existing windows */
 262         client_manage_all();
 263
 264         state = OB_STATE_RUNNING;
 265         while (!shutdown)
 266             event_loop();
 267         state = OB_STATE_EXITING;
 268
 269         dock_remove_all();
 270         client_unmanage_all();
 271
 272         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 273         dock_shutdown();
 274         client_shutdown();
 275         group_shutdown();
 276         screen_shutdown();
 277         focus_shutdown();
 278         moveresize_shutdown();
 279         menu_shutdown();
 280         window_shutdown();
 281         grab_shutdown();
 282         event_shutdown();
 283         timer_shutdown();
 284         config_shutdown();
 285     }
 286
 287     dispatch_shutdown();
 288
 289     RrThemeFree(ob_rr_theme);
 290     RrInstanceFree(ob_rr_inst);
 291
 292     sm_shutdown();
 293
 294     XCloseDisplay(ob_display);
 295
 296     if (restart) {
 297         if (restart_path != NULL) {
 298             int argcp;
 299             char **argvp;
 300             GError *err = NULL;
 301
 302             /* run other shit */
 303             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
 304                 execvp(argvp[0], argvp);
 305                 g_strfreev(argvp);
 306             } else {
 307                 g_warning("failed to execute '%s': %s", restart_path,
 308                           err->message);
 309             }
 310         }
 311
 312         /* re-run me */
 313         execvp(argv[0], argv); /* try how we were run */
 314     }
 315
 316     return 0;
 317 }
 318
 319 static void sm_startup(int argc, char **argv)
 320 {
 321 #ifdef USE_SM
 322
 323 #define SM_ERR_LEN 1024
 324
 325     SmcCallbacks cb;
 326     char sm_err[SM_ERR_LEN];
 327
 328     cb.save_yourself.callback = sm_save_yourself;
 329     cb.save_yourself.client_data = NULL;
 330
 331     cb.die.callback = sm_die;
 332     cb.die.client_data = NULL;
 333
 334     cb.save_complete.callback = sm_save_complete;
 335     cb.save_complete.client_data = NULL;
 336
 337     cb.shutdown_cancelled.callback = sm_shutdown_cancelled;
 338     cb.shutdown_cancelled.client_data = NULL;
 339
 340     ob_sm_conn = SmcOpenConnection(NULL, NULL, 1, 0,
 341                                    SmcSaveYourselfProcMask |
 342                                    SmcDieProcMask |
 343                                    SmcSaveCompleteProcMask |
 344                                    SmcShutdownCancelledProcMask,
 345                                    &cb, ob_sm_id, &ob_sm_id,
 346                                    SM_ERR_LEN, sm_err);
 347     if (ob_sm_conn == NULL)
 348         g_warning("Failed to connect to session manager: %s", sm_err);
 349     else {
 350         SmPropValue val_prog;
 351         SmPropValue val_uid;
 352         SmPropValue val_hint;
 353         SmPropValue val_pri;
 354         SmPropValue val_pid;
 355         SmProp prop_cmd = { SmCloneCommand, SmLISTofARRAY8, 1, };
 356         SmProp prop_res = { SmRestartCommand, SmLISTofARRAY8, };
 357         SmProp prop_prog = { SmProgram, SmARRAY8, 1, };
 358         SmProp prop_uid = { SmUserID, SmARRAY8, 1, };
 359         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 360         SmProp prop_pid = { SmProcessID, SmARRAY8, 1, };
 361         SmProp prop_pri = { "_GSM_Priority", SmCARD8, 1, };
 362         SmProp *props[7];
 363         gulong hint, pri;
 364         gchar pid[32];
 365         gint i, j;
 366         gboolean has_id;
 367
 368         for (i = 1; i < argc - 1; ++i)
 369             if (strcmp(argv[i], "--sm-client-id") == 0)
 370                 break;
 371         has_id = (i < argc - 1);
 372
 373         prop_cmd.vals = g_new(SmPropValue, (has_id ? argc-2 : argc));
 374         prop_cmd.num_vals = (has_id ? argc-2 : argc);
 375         for (i = 0, j = 0; i < argc; ++i, ++j) {
 376             if (strcmp (argv[i], "--sm-client-id") == 0) {
 377                 ++i, --j; /* skip the next as well, keep j where it is */
 378             } else {
 379                 prop_cmd.vals[j].value = argv[i];
 380                 prop_cmd.vals[j].length = strlen(argv[i]);
 381             }
 382         }
 383
 384         prop_res.vals = g_new(SmPropValue, (has_id ? argc : argc+2));
 385         prop_res.num_vals = (has_id ? argc : argc+2);
 386         for (i = 0, j = 0; i < argc; ++i, ++j) {
 387             if (strcmp (argv[i], "--sm-client-id") == 0) {
 388                 ++i, --j; /* skip the next as well, keep j where it is */
 389             } else {
 390                 prop_res.vals[j].value = argv[i];
 391                 prop_res.vals[j].length = strlen(argv[i]);
 392             }
 393         }
 394         prop_res.vals[j].value = "--sm-client-id";
 395         prop_res.vals[j++].length = strlen("--sm-client-id");
 396         prop_res.vals[j].value = ob_sm_id;
 397         prop_res.vals[j++].length = strlen(ob_sm_id);
 398
 399         val_prog.value = argv[0];
 400         val_prog.length = strlen(argv[0]);
 401
 402         val_uid.value = g_strdup(g_get_user_name());
 403         val_uid.length = strlen(val_uid.value);
 404
 405         hint = SmRestartImmediately;
 406         val_hint.value = &hint;
 407         val_hint.length = 1;
 408
 409         sprintf(pid, "%ld", (long)getpid());
 410         val_pid.value = pid;
 411         val_pid.length = strlen(pid);
 412
 413         /* priority with gnome-session-manager, low to run before other apps */
 414         pri = 20;
 415         val_pri.value = &pri;
 416         val_pri.length = 1;
 417
 418         prop_prog.vals = &val_prog;
 419         prop_uid.vals = &val_uid;
 420         prop_hint.vals = &val_hint;
 421         prop_pid.vals = &val_pid;
 422         prop_pri.vals = &val_pri;
 423
 424         props[0] = &prop_prog;
 425         props[1] = &prop_cmd;
 426         props[2] = &prop_res;
 427         props[3] = &prop_uid;
 428         props[4] = &prop_hint;
 429         props[5] = &prop_pid;
 430         props[6] = &prop_pri;
 431
 432         SmcSetProperties(ob_sm_conn, 7, props);
 433
 434         g_free(val_uid.value);
 435         g_free(prop_cmd.vals);
 436         g_free(prop_res.vals);
 437
 438         ob_debug("Connected to session manager with id %s\n", ob_sm_id);
 439     }
 440     g_free (ob_sm_id);
 441 #endif
 442 }
 443
 444 static void sm_shutdown()
 445 {
 446 #ifdef USE_SM
 447     if (ob_sm_conn) {
 448         SmPropValue val_hint;
 449         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 450         SmProp *props[1];
 451         gulong hint;
 452
 453         /* when we exit, we want to reset this to a more friendly state */
 454         hint = SmRestartIfRunning;
 455         val_hint.value = &hint;
 456         val_hint.length = 1;
 457
 458         prop_hint.vals = &val_hint;
 459
 460         props[0] = &prop_hint;
 461
 462         SmcSetProperties(ob_sm_conn, 1, props);
 463
 464         SmcCloseConnection(ob_sm_conn, 0, NULL);
 465     }
 466 #endif
 467 }
 468
 469 static void signal_handler(const ObEvent *e, void *data)
 470 {
 471     int s;
 472
 473     s = e->data.s.signal;
 474     switch (s) {
 475     case SIGUSR1:
 476         fprintf(stderr, "Caught SIGUSR1 signal. Restarting.");
 477         ob_restart();
 478         break;
 479
 480     case SIGHUP:
 481     case SIGINT:
 482     case SIGTERM:
 483     case SIGPIPE:
 484         fprintf(stderr, "Caught signal %d. Exiting.", s);
 485         ob_exit();
 486         break;
 487
 488     case SIGFPE:
 489     case SIGSEGV:
 490         fprintf(stderr, "Caught signal %d. Aborting and dumping core.", s);
 491         abort();
 492     }
 493 }
 494
 495 static void print_version()
 496 {
 497     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 498     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 499     g_print("This is free software, and you are welcome to redistribute it\n");
 500     g_print("under certain conditions. See the file COPYING for details.\n\n");
 501 }
 502
 503 static void print_help()
 504 {
 505     print_version();
 506     g_print("Syntax: openbox [options]\n\n");
 507     g_print("Options:\n\n");
 508 #ifdef USE_SM
 509     g_print("  --sm-client-id ID  Specify session management ID\n");
 510     g_print("  --sm-disable       Disable connection to session manager\n");
 511 #endif
 512     g_print("  --replace          Replace the currently running window "
 513             "manager\n");
 514     g_print("  --help             Display this help and exit\n");
 515     g_print("  --version          Display the version and exit\n");
 516     g_print("  --sync             Run in synchronous mode (this is slow and\n"
 517             "                     meant for debugging X routines)\n");
 518     g_print("  --debug            Display debugging output\n");
 519     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 520 }
 521
 522 static void parse_args(int argc, char **argv)
 523 {
 524     int i;
 525
 526     for (i = 1; i < argc; ++i) {
 527         if (!strcmp(argv[i], "--version")) {
 528             print_version();
 529             exit(0);
 530         } else if (!strcmp(argv[i], "--help")) {
 531             print_help();
 532             exit(0);
 533         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
 534             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
 535         } else if (!strcmp(argv[i], "--replace")) {
 536             ob_replace_wm = TRUE;
 537         } else if (!strcmp(argv[i], "--sync")) {
 538             xsync = TRUE;
 539         } else if (!strcmp(argv[i], "--debug")) {
 540             ob_debug_show_output(TRUE);
 541 #ifdef USE_SM
 542         } else if (!strcmp(argv[i], "--sm-client-id")) {
 543             if (i == argc - 1) /* no args left */
 544                 g_printerr(_("--sm-client-id requires an argument\n"));
 545             else
 546                 ob_sm_id = argv[++i];
 547         } else if (!strcmp(argv[i], "--sm-disable")) {
 548             ob_sm_use = FALSE;
 549 #endif
 550         } else {
 551             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 552             print_help();
 553             exit(1);
 554         }
 555     }
 556 }
 557
 558 #ifdef USE_SM
 559 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
 560                              Bool shutdown, int interact_style, Bool fast)
 561 {
 562     ob_debug("got SAVE YOURSELF from session manager\n");
 563     SmcSaveYourselfDone(conn, TRUE);
 564 }
 565
 566 static void sm_die(SmcConn conn, SmPointer data)
 567 {
 568     ob_exit();
 569     ob_debug("got DIE from session manager\n");
 570 }
 571
 572 static void sm_save_complete(SmcConn conn, SmPointer data)
 573 {
 574     ob_debug("got SAVE COMPLETE from session manager\n");
 575 }
 576
 577 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data)
 578 {
 579     ob_debug("got SHUTDOWN CANCELLED from session manager\n");
 580 }
 581 #endif
 582
 583 static void exit_with_error(gchar *msg)
 584 {
 585     g_critical(msg);
 586     sm_shutdown();
 587     exit(EXIT_FAILURE);
 588 }
 589
 590 void ob_restart_other(const gchar *path)
 591 {
 592     restart_path = g_strdup(path);
 593     ob_restart();
 594 }
 595
 596 void ob_restart()
 597 {
 598     restart = TRUE;
 599     ob_exit();
 600 }
 601
 602 void ob_exit()
 603 {
 604     shutdown = TRUE;
 605 }
 606
 607 Cursor ob_cursor(ObCursor cursor)
 608 {
 609     g_assert(cursor < OB_NUM_CURSORS);
 610     return cursors[cursor];
 611 }
 612
 613 KeyCode ob_keycode(ObKey key)
 614 {
 615     g_assert(key < OB_NUM_KEYS);
 616     return keys[key];
 617 }
 618
 619 ObState ob_state()
 620 {
 621     return state;
 622 }