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