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 State       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 Cursors     ob_cursors;
  70 char       *ob_rc_path  = NULL;
  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     ob_state = 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     ob_root = RootWindow(ob_display, ob_screen);
 151
 152     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 153     if (ob_rr_inst == NULL)
 154         exit_with_error("Failed to initialize the render library.");
 155
 156     /* XXX fork self onto other screens */
 157
 158     XSynchronize(ob_display, ob_sync);
 159
 160     /* check for locale support */
 161     if (!XSupportsLocale())
 162         g_warning("X server does not support locale.");
 163     if (!XSetLocaleModifiers(""))
 164         g_warning("Cannot set locale modifiers for the X server.");
 165
 166     /* set our error handler */
 167     XSetErrorHandler(xerror_handler);
 168
 169     /* set the DISPLAY environment variable for any lauched children, to the
 170        display we're using, so they open in the right place. */
 171     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 172
 173     ob_cursors.ptr = XCreateFontCursor(ob_display, XC_left_ptr);
 174     ob_cursors.busy = XCreateFontCursor(ob_display, XC_watch);
 175     ob_cursors.move = XCreateFontCursor(ob_display, XC_fleur);
 176     ob_cursors.tl = XCreateFontCursor(ob_display, XC_top_left_corner);
 177     ob_cursors.tr = XCreateFontCursor(ob_display, XC_top_right_corner);
 178     ob_cursors.bl = XCreateFontCursor(ob_display, XC_bottom_left_corner);
 179     ob_cursors.br = XCreateFontCursor(ob_display, XC_bottom_right_corner);
 180     ob_cursors.t = XCreateFontCursor(ob_display, XC_top_side);
 181     ob_cursors.r = XCreateFontCursor(ob_display, XC_right_side);
 182     ob_cursors.b = XCreateFontCursor(ob_display, XC_bottom_side);
 183     ob_cursors.l = XCreateFontCursor(ob_display, XC_left_side);
 184
 185     prop_startup(); /* get atoms values for the display */
 186     extensions_query_all(); /* find which extensions are present */
 187
 188     /* save stuff that we can use to restore state */
 189     startup_save();
 190
 191     if (screen_annex()) { /* it will be ours! */
 192         /* startup the parsing so everything can register sections of the rc */
 193         parse_startup();
 194
 195         /* anything that is going to read data from the rc file needs to be
 196            in this group */
 197         timer_startup();
 198         event_startup();
 199         grab_startup();
 200         window_startup();
 201         plugin_startup();
 202         /* load the plugins specified in the pluginrc */
 203         plugin_loadall();
 204
 205         /* set up the kernel config shit */
 206         config_startup();
 207         menu_startup();
 208         /* parse/load user options */
 209         if (parse_load_rc(&doc, &node))
 210             parse_tree(doc, node->xmlChildrenNode, NULL);
 211         /* we're done with parsing now, kill it */
 212         parse_shutdown();
 213
 214         /* load the theme specified in the rc file */
 215         ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 216         if (ob_rr_theme == NULL)
 217             exit_with_error("Unable to load a theme.");
 218
 219         frame_startup();
 220         moveresize_startup();
 221         focus_startup();
 222         screen_startup();
 223         group_startup();
 224         client_startup();
 225         dock_startup();
 226
 227         /* call startup for all the plugins */
 228         plugin_startall();
 229
 230         /* get all the existing windows */
 231         client_manage_all();
 232
 233         ob_state = State_Running;
 234         while (!ob_shutdown)
 235             event_loop();
 236         ob_state = State_Exiting;
 237
 238         dock_remove_all();
 239         client_unmanage_all();
 240
 241         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 242         dock_shutdown();
 243         client_shutdown();
 244         group_shutdown();
 245         screen_shutdown();
 246         focus_shutdown();
 247         moveresize_shutdown();
 248         frame_shutdown();
 249         menu_shutdown();
 250         window_shutdown();
 251         grab_shutdown();
 252         event_shutdown();
 253         timer_shutdown();
 254         config_shutdown();
 255     }
 256
 257     dispatch_shutdown();
 258
 259     RrThemeFree(ob_rr_theme);
 260     RrInstanceFree(ob_rr_inst);
 261
 262     sm_shutdown();
 263
 264     XCloseDisplay(ob_display);
 265
 266     if (ob_restart) {
 267         if (ob_restart_path != NULL) {
 268             int argcp;
 269             char **argvp;
 270             GError *err = NULL;
 271
 272             /* run other shit */
 273             if (g_shell_parse_argv(ob_restart_path, &argcp, &argvp, &err)) {
 274                 execvp(argvp[0], argvp);
 275                 g_strfreev(argvp);
 276             } else {
 277                 g_warning("failed to execute '%s': %s", ob_restart_path,
 278                           err->message);
 279             }
 280         }
 281
 282         /* re-run me */
 283         execvp(argv[0], argv); /* try how we were run */
 284         execlp(BINARY, BINARY, NULL); /* try this as a last resort */
 285     }
 286
 287     return 0;
 288 }
 289
 290 static void sm_startup(int argc, char **argv)
 291 {
 292 #ifdef USE_SM
 293
 294 #define SM_ERR_LEN 1024
 295
 296     SmcCallbacks cb;
 297     char sm_err[SM_ERR_LEN];
 298
 299     cb.save_yourself.callback = sm_save_yourself;
 300     cb.save_yourself.client_data = NULL;
 301
 302     cb.die.callback = sm_die;
 303     cb.die.client_data = NULL;
 304
 305     cb.save_complete.callback = sm_save_complete;
 306     cb.save_complete.client_data = NULL;
 307
 308     cb.shutdown_cancelled.callback = sm_shutdown_cancelled;
 309     cb.shutdown_cancelled.client_data = NULL;
 310
 311     ob_sm_conn = SmcOpenConnection(NULL, NULL, 1, 0,
 312                                    SmcSaveYourselfProcMask |
 313                                    SmcDieProcMask |
 314                                    SmcSaveCompleteProcMask |
 315                                    SmcShutdownCancelledProcMask,
 316                                    &cb, ob_sm_id, &ob_sm_id,
 317                                    SM_ERR_LEN, sm_err);
 318     if (ob_sm_conn == NULL)
 319         g_warning("Failed to connect to session manager: %s", sm_err);
 320     else {
 321         SmPropValue val_prog;
 322         SmPropValue val_uid;
 323         SmPropValue val_hint;
 324         SmPropValue val_pri;
 325         SmPropValue val_pid;
 326         SmProp prop_cmd = { SmCloneCommand, SmLISTofARRAY8, 1, };
 327         SmProp prop_res = { SmRestartCommand, SmLISTofARRAY8, };
 328         SmProp prop_prog = { SmProgram, SmARRAY8, 1, };
 329         SmProp prop_uid = { SmUserID, SmARRAY8, 1, };
 330         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 331         SmProp prop_pid = { SmProcessID, SmARRAY8, 1, };
 332         SmProp prop_pri = { "_GSM_Priority", SmCARD8, 1, };
 333         SmProp *props[7];
 334         gulong hint, pri;
 335         gchar pid[32];
 336         gint i, j;
 337         gboolean has_id;
 338
 339         for (i = 1; i < argc - 1; ++i)
 340             if (strcmp(argv[i], "-sm-client-id") == 0)
 341                 break;
 342         has_id = (i < argc - 1);
 343
 344         prop_cmd.vals = g_new(SmPropValue, (has_id ? argc-2 : argc));
 345         prop_cmd.num_vals = (has_id ? argc-2 : argc);
 346         for (i = 0, j = 0; i < argc; ++i, ++j) {
 347             if (strcmp (argv[i], "-sm-client-id") == 0) {
 348                 ++i, --j; /* skip the next as well, keep j where it is */
 349             } else {
 350                 prop_cmd.vals[j].value = argv[i];
 351                 prop_cmd.vals[j].length = strlen(argv[i]);
 352             }
 353         }
 354
 355         prop_res.vals = g_new(SmPropValue, (has_id ? argc : argc+2));
 356         prop_res.num_vals = (has_id ? argc : argc+2);
 357         for (i = 0, j = 0; i < argc; ++i, ++j) {
 358             if (strcmp (argv[i], "-sm-client-id") == 0) {
 359                 ++i, --j; /* skip the next as well, keep j where it is */
 360             } else {
 361                 prop_res.vals[j].value = argv[i];
 362                 prop_res.vals[j].length = strlen(argv[i]);
 363             }
 364         }
 365         prop_res.vals[j].value = "-sm-client-id";
 366         prop_res.vals[j++].length = strlen("-sm-client-id");
 367         prop_res.vals[j].value = ob_sm_id;
 368         prop_res.vals[j++].length = strlen(ob_sm_id);
 369
 370         val_prog.value = argv[0];
 371         val_prog.length = strlen(argv[0]);
 372
 373         val_uid.value = g_get_user_name();
 374         val_uid.length = strlen(val_uid.value);
 375
 376         hint = SmRestartImmediately;
 377         val_hint.value = &hint;
 378         val_hint.length = 1;
 379
 380         sprintf(pid, "%ld", (long)getpid());
 381         val_pid.value = pid;
 382         val_pid.length = strlen(pid);
 383
 384         /* priority with gnome-session-manager, low to run before other apps */
 385         pri = 20;
 386         val_pri.value = &pri;
 387         val_pri.length = 1;
 388
 389         prop_prog.vals = &val_prog;
 390         prop_uid.vals = &val_uid;
 391         prop_hint.vals = &val_hint;
 392         prop_pid.vals = &val_pid;
 393         prop_pri.vals = &val_pri;
 394
 395         props[0] = &prop_prog;
 396         props[1] = &prop_cmd;
 397         props[2] = &prop_res;
 398         props[3] = &prop_uid;
 399         props[4] = &prop_hint;
 400         props[5] = &prop_pid;
 401         props[6] = &prop_pri;
 402
 403         SmcSetProperties(ob_sm_conn, 7, props);
 404
 405         g_free(prop_cmd.vals);
 406         g_free(prop_res.vals);
 407
 408         g_message("Connected to session manager with id %s", ob_sm_id);
 409     }
 410     g_free (ob_sm_id);
 411 #endif
 412 }
 413
 414 static void sm_shutdown()
 415 {
 416 #ifdef USE_SM
 417     if (ob_sm_conn) {
 418         SmPropValue val_hint;
 419         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 420         SmProp *props[1];
 421         gulong hint;
 422
 423         /* when we exit, we want to reset this to a more friendly state */
 424         hint = SmRestartIfRunning;
 425         val_hint.value = &hint;
 426         val_hint.length = 1;
 427
 428         prop_hint.vals = &val_hint;
 429
 430         props[0] = &prop_hint;
 431
 432         SmcSetProperties(ob_sm_conn, 1, props);
 433
 434         SmcCloseConnection(ob_sm_conn, 0, NULL);
 435     }
 436 #endif
 437 }
 438
 439 static void signal_handler(const ObEvent *e, void *data)
 440 {
 441     int s;
 442
 443     s = e->data.s.signal;
 444     switch (s) {
 445     case SIGUSR1:
 446         fprintf(stderr, "Caught SIGUSR1 signal. Restarting.");
 447         ob_shutdown = ob_restart = TRUE;
 448         break;
 449
 450     case SIGHUP:
 451     case SIGINT:
 452     case SIGTERM:
 453     case SIGPIPE:
 454         fprintf(stderr, "Caught signal %d. Exiting.", s);
 455         ob_shutdown = TRUE;
 456         break;
 457
 458     case SIGFPE:
 459     case SIGSEGV:
 460         fprintf(stderr, "Caught signal %d. Aborting and dumping core.", s);
 461         abort();
 462     }
 463 }
 464
 465 static void print_version()
 466 {
 467     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 468     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 469     g_print("This is free software, and you are welcome to redistribute it\n");
 470     g_print("under certain conditions. See the file COPYING for details.\n\n");
 471 }
 472
 473 static void print_help()
 474 {
 475     print_version();
 476     g_print("Syntax: %s [options]\n\n", BINARY);
 477     g_print("Options:\n\n");
 478     g_print("  -rc PATH          Specify the path to the rc file to use\n");
 479 #ifdef USE_SM
 480     g_print("  -sm-client-id ID  Specify session management ID\n");
 481     g_print("  -sm-disable       Disable connection to session manager\n");
 482 #endif
 483     g_print("  -help             Display this help and exit\n");
 484     g_print("  -version          Display the version and exit\n");
 485     g_print("  -sync             Run in synchronous mode (this is slow and\n"
 486             "                    meant for debugging X routines)\n");
 487     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 488 }
 489
 490 static void parse_args(int argc, char **argv)
 491 {
 492     int i;
 493
 494     for (i = 1; i < argc; ++i) {
 495         if (!strcmp(argv[i], "-version")) {
 496             print_version();
 497             exit(0);
 498         } else if (!strcmp(argv[i], "-help")) {
 499             print_help();
 500             exit(0);
 501         } else if (!strcmp(argv[i], "-sync")) {
 502             ob_sync = TRUE;
 503         } else if (!strcmp(argv[i], "-rc")) {
 504             if (i == argc - 1) /* no args left */
 505                 g_printerr(_("-rc requires an argument\n"));
 506             else
 507                 ob_rc_path = argv[++i];
 508 #ifdef USE_SM
 509         } else if (!strcmp(argv[i], "-sm-client-id")) {
 510             if (i == argc - 1) /* no args left */
 511                 g_printerr(_("-sm-client-id requires an argument\n"));
 512             else
 513                 ob_sm_id = argv[++i];
 514         } else if (!strcmp(argv[i], "-sm-disable")) {
 515             ob_sm_use = FALSE;
 516 #endif
 517         } else {
 518             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 519             print_help();
 520             exit(1);
 521         }
 522     }
 523 }
 524
 525 gboolean ob_pointer_pos(int *x, int *y)
 526 {
 527     Window w;
 528     int i;
 529     guint u;
 530
 531     return !!XQueryPointer(ob_display, ob_root, &w, &w, x, y, &i, &i, &u);
 532 }
 533
 534 #ifdef USE_SM
 535 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
 536                              Bool shutdown, int interact_style, Bool fast)
 537 {
 538     g_message("got SAVE YOURSELF from session manager");
 539     SmcSaveYourselfDone(conn, TRUE);
 540 }
 541
 542 static void sm_die(SmcConn conn, SmPointer data)
 543 {
 544     ob_shutdown = TRUE;
 545     g_message("got DIE from session manager");
 546 }
 547
 548 static void sm_save_complete(SmcConn conn, SmPointer data)
 549 {
 550     g_message("got SAVE COMPLETE from session manager");
 551 }
 552
 553 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data)
 554 {
 555     g_message("got SHUTDOWN CANCELLED from session manager");
 556 }
 557 #endif
 558
 559 static void exit_with_error(gchar *msg)
 560 {
 561     g_critical(msg);
 562     sm_shutdown();
 563     exit(EXIT_FAILURE);
 564 }