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 #  include <signal.h>
  30 #endif
  31 #ifdef HAVE_STDLIB_H
  32 #  include <stdlib.h>
  33 #endif
  34 #ifdef HAVE_LOCALE_H
  35 #  include <locale.h>
  36 #endif
  37 #ifdef HAVE_UNISTD_H
  38 #  include <unistd.h>
  39 #endif
  40 #ifdef HAVE_SYS_STAT_H
  41 #  include <sys/stat.h>
  42 #  include <sys/types.h>
  43 #endif
  44
  45 #ifdef USE_SM
  46 #include <X11/SM/SMlib.h>
  47 #endif
  48
  49 #include <X11/cursorfont.h>
  50
  51 #ifdef USE_SM
  52 gboolean    ob_sm_use = TRUE;
  53 SmcConn     ob_sm_conn;
  54 gchar      *ob_sm_id = NULL;
  55 #endif
  56
  57 RrInstance *ob_rr_inst = NULL;
  58 RrTheme    *ob_rr_theme = NULL;
  59 Display    *ob_display = NULL;
  60 int         ob_screen;
  61 Window      ob_root;
  62 State       ob_state;
  63 gboolean    ob_shutdown = FALSE;
  64 gboolean    ob_restart  = FALSE;
  65 char       *ob_restart_path = NULL;
  66 gboolean    ob_remote   = TRUE;
  67 gboolean    ob_sync     = FALSE;
  68 Cursors     ob_cursors;
  69 char       *ob_rc_path  = NULL;
  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     ob_state = 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;
 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     /* parse out command line args */
 132     parse_args(argc, argv);
 133
 134     ob_display = XOpenDisplay(NULL);
 135     if (ob_display == NULL)
 136         exit_with_error("Failed to open the display.");
 137     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 138         exit_with_error("Failed to set display as close-on-exec.");
 139
 140     sm_startup(argc, argv);
 141
 142 #ifdef USE_LIBSN
 143     ob_sn_display = sn_display_new(ob_display, NULL, NULL);
 144 #endif
 145
 146     ob_screen = DefaultScreen(ob_display);
 147     ob_root = RootWindow(ob_display, ob_screen);
 148
 149     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 150     if (ob_rr_inst == NULL)
 151         exit_with_error("Failed to initialize the render library.");
 152
 153     /* XXX fork self onto other screens */
 154
 155     XSynchronize(ob_display, ob_sync);
 156
 157     /* check for locale support */
 158     if (!XSupportsLocale())
 159         g_warning("X server does not support locale.");
 160     if (!XSetLocaleModifiers(""))
 161         g_warning("Cannot set locale modifiers for the X server.");
 162
 163     /* set our error handler */
 164     XSetErrorHandler(xerror_handler);
 165
 166     /* set the DISPLAY environment variable for any lauched children, to the
 167        display we're using, so they open in the right place. */
 168     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 169
 170     ob_cursors.ptr = XCreateFontCursor(ob_display, XC_left_ptr);
 171     ob_cursors.busy = XCreateFontCursor(ob_display, XC_watch);
 172     ob_cursors.move = XCreateFontCursor(ob_display, XC_fleur);
 173     ob_cursors.tl = XCreateFontCursor(ob_display, XC_top_left_corner);
 174     ob_cursors.tr = XCreateFontCursor(ob_display, XC_top_right_corner);
 175     ob_cursors.bl = XCreateFontCursor(ob_display, XC_bottom_left_corner);
 176     ob_cursors.br = XCreateFontCursor(ob_display, XC_bottom_right_corner);
 177     ob_cursors.t = XCreateFontCursor(ob_display, XC_top_side);
 178     ob_cursors.r = XCreateFontCursor(ob_display, XC_right_side);
 179     ob_cursors.b = XCreateFontCursor(ob_display, XC_bottom_side);
 180     ob_cursors.l = XCreateFontCursor(ob_display, XC_left_side);
 181
 182     prop_startup(); /* get atoms values for the display */
 183     extensions_query_all(); /* find which extensions are present */
 184
 185     /* save stuff that we can use to restore state */
 186     startup_save();
 187
 188     if (screen_annex()) { /* it will be ours! */
 189         /* startup the parsing so everything can register sections of the rc */
 190         parse_startup();
 191
 192         /* anything that is going to read data from the rc file needs to be
 193            in this group */
 194         timer_startup();
 195         event_startup();
 196         grab_startup();
 197         plugin_startup();
 198         /* load the plugins specified in the pluginrc */
 199         plugin_loadall();
 200
 201         /* set up the kernel config shit */
 202         config_startup();
 203         /* parse/load user options */
 204         if (parse_load_rc(&doc, &node))
 205             parse_tree(doc, node->xmlChildrenNode, NULL);
 206         /* we're done with parsing now, kill it */
 207         parse_shutdown();
 208
 209         /* load the theme specified in the rc file */
 210         ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 211         if (ob_rr_theme == NULL)
 212             exit_with_error("Unable to load a theme.");
 213
 214         window_startup();
 215         menu_startup();
 216         frame_startup();
 217         moveresize_startup();
 218         focus_startup();
 219         screen_startup();
 220         group_startup();
 221         client_startup();
 222         dock_startup();
 223
 224         /* call startup for all the plugins */
 225         plugin_startall();
 226
 227         /* get all the existing windows */
 228         client_manage_all();
 229
 230         ob_state = State_Running;
 231         while (!ob_shutdown)
 232             event_loop();
 233         ob_state = State_Exiting;
 234
 235         dock_remove_all();
 236         client_unmanage_all();
 237
 238         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 239         dock_shutdown();
 240         client_shutdown();
 241         group_shutdown();
 242         screen_shutdown();
 243         focus_shutdown();
 244         moveresize_shutdown();
 245         frame_shutdown();
 246         menu_shutdown();
 247         window_shutdown();
 248         grab_shutdown();
 249         event_shutdown();
 250         timer_shutdown();
 251         config_shutdown();
 252     }
 253
 254     dispatch_shutdown();
 255
 256     RrThemeFree(ob_rr_theme);
 257     RrInstanceFree(ob_rr_inst);
 258
 259     sm_shutdown();
 260
 261     XCloseDisplay(ob_display);
 262
 263     if (ob_restart) {
 264         if (ob_restart_path != NULL) {
 265             int argcp;
 266             char **argvp;
 267             GError *err = NULL;
 268
 269             /* run other shit */
 270             if (g_shell_parse_argv(ob_restart_path, &argcp, &argvp, &err)) {
 271                 execvp(argvp[0], argvp);
 272                 g_strfreev(argvp);
 273             } else {
 274                 g_warning("failed to execute '%s': %s", ob_restart_path,
 275                           err->message);
 276             }
 277         }
 278
 279         /* re-run me */
 280         execvp(argv[0], argv); /* try how we were run */
 281         execlp(BINARY, BINARY, NULL); /* try this as a last resort */
 282     }
 283
 284     return 0;
 285 }
 286
 287 static void sm_startup(int argc, char **argv)
 288 {
 289 #ifdef USE_SM
 290
 291 #define SM_ERR_LEN 1024
 292
 293     SmcCallbacks cb;
 294     char sm_err[SM_ERR_LEN];
 295
 296     cb.save_yourself.callback = sm_save_yourself;
 297     cb.save_yourself.client_data = NULL;
 298
 299     cb.die.callback = sm_die;
 300     cb.die.client_data = NULL;
 301
 302     cb.save_complete.callback = sm_save_complete;
 303     cb.save_complete.client_data = NULL;
 304
 305     cb.shutdown_cancelled.callback = sm_shutdown_cancelled;
 306     cb.shutdown_cancelled.client_data = NULL;
 307
 308     ob_sm_conn = SmcOpenConnection(NULL, NULL, 1, 0,
 309                                    SmcSaveYourselfProcMask |
 310                                    SmcDieProcMask |
 311                                    SmcSaveCompleteProcMask |
 312                                    SmcShutdownCancelledProcMask,
 313                                    &cb, ob_sm_id, &ob_sm_id,
 314                                    SM_ERR_LEN, sm_err);
 315     if (ob_sm_conn == NULL)
 316         g_warning("Failed to connect to session manager: %s", sm_err);
 317     else {
 318         SmPropValue val_prog;
 319         SmPropValue val_uid;
 320         SmPropValue val_hint;
 321         SmPropValue val_pri;
 322         SmPropValue val_pid;
 323         SmProp prop_cmd = { SmCloneCommand, SmLISTofARRAY8, 1, };
 324         SmProp prop_res = { SmRestartCommand, SmLISTofARRAY8, };
 325         SmProp prop_prog = { SmProgram, SmARRAY8, 1, };
 326         SmProp prop_uid = { SmUserID, SmARRAY8, 1, };
 327         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 328         SmProp prop_pid = { SmProcessID, SmARRAY8, 1, };
 329         SmProp prop_pri = { "_GSM_Priority", SmCARD8, 1, };
 330         SmProp *props[7];
 331         gulong hint, pri;
 332         gchar pid[32];
 333         gint i;
 334         gboolean has_id;
 335
 336         for (i = 1; i < argc - 1; ++i)
 337             if (strcmp(argv[i], "-sm-client-id") == 0)
 338                 break;
 339         has_id = (i < argc - 1);
 340
 341         prop_cmd.vals = g_new(SmPropValue, (has_id ? argc-2 : argc));
 342         prop_cmd.num_vals = (has_id ? argc-2 : argc);
 343         for (i = 0; i < argc; ++i) {
 344             if (strcmp (argv[i], "-sm-client-id") == 0) {
 345                 ++i; /* skip the next as well */
 346             } else {
 347                 prop_cmd.vals[i].value = argv[i];
 348                 prop_cmd.vals[i].length = strlen(argv[i]);
 349             }
 350         }
 351
 352         prop_res.vals = g_new(SmPropValue, (has_id ? argc : argc+2));
 353         prop_res.num_vals = (has_id ? argc : argc+2);
 354         for (i = 0; i < argc; ++i) {
 355             prop_res.vals[i].value = argv[i];
 356             prop_res.vals[i].length = strlen(argv[i]);
 357         }
 358         if (!has_id) {
 359             prop_res.vals[i].value = "-sm-client-id";
 360             prop_res.vals[i++].length = strlen("-sm-client-id");
 361             prop_res.vals[i].value = ob_sm_id;
 362             prop_res.vals[i++].length = strlen(ob_sm_id);
 363         }
 364
 365         val_prog.value = argv[0];
 366         val_prog.length = strlen(argv[0]);
 367
 368         val_uid.value = g_get_user_name();
 369         val_uid.length = strlen(val_uid.value);
 370
 371         hint = SmRestartImmediately;
 372         val_hint.value = &hint;
 373         val_hint.length = 1;
 374
 375         sprintf(pid, "%ld", (long)getpid());
 376         val_pid.value = pid;
 377         val_pid.length = strlen(pid);
 378
 379         /* priority with gnome-session-manager, low to run before other apps */
 380         pri = 20;
 381         val_pri.value = &pri;
 382         val_pri.length = 1;
 383
 384         prop_prog.vals = &val_prog;
 385         prop_uid.vals = &val_uid;
 386         prop_hint.vals = &val_hint;
 387         prop_pid.vals = &val_pid;
 388         prop_pri.vals = &val_pri;
 389
 390         props[0] = &prop_prog;
 391         props[1] = &prop_cmd;
 392         props[2] = &prop_res;
 393         props[3] = &prop_uid;
 394         props[4] = &prop_hint;
 395         props[5] = &prop_pid;
 396         props[6] = &prop_pri;
 397
 398         SmcSetProperties(ob_sm_conn, 7, props);
 399
 400         g_free(prop_cmd.vals);
 401         g_free(prop_res.vals);
 402
 403         g_message("Connected to session manager with id %s", ob_sm_id);
 404     }
 405     g_free (ob_sm_id);
 406 #endif
 407 }
 408
 409 static void sm_shutdown()
 410 {
 411 #ifdef USE_SM
 412     if (ob_sm_conn) {
 413         SmPropValue val_hint;
 414         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 415         SmProp *props[1];
 416         gulong hint;
 417
 418         /* when we exit, we want to reset this to a more friendly state */
 419         hint = SmRestartIfRunning;
 420         val_hint.value = &hint;
 421         val_hint.length = 1;
 422
 423         prop_hint.vals = &val_hint;
 424
 425         props[0] = &prop_hint;
 426
 427         SmcSetProperties(ob_sm_conn, 1, props);
 428
 429         SmcCloseConnection(ob_sm_conn, 0, NULL);
 430     }
 431 #endif
 432 }
 433
 434 static void signal_handler(const ObEvent *e, void *data)
 435 {
 436     int s;
 437
 438     s = e->data.s.signal;
 439     switch (s) {
 440     case SIGUSR1:
 441         g_message("Caught SIGUSR1 signal. Restarting.");
 442         ob_shutdown = ob_restart = TRUE;
 443         break;
 444
 445     case SIGHUP:
 446     case SIGINT:
 447     case SIGTERM:
 448     case SIGPIPE:
 449         g_message("Caught signal %d. Exiting.", s);
 450         ob_shutdown = TRUE;
 451         break;
 452
 453     case SIGFPE:
 454     case SIGSEGV:
 455         g_message("Caught signal %d. Aborting and dumping core.", s);
 456         abort();
 457     }
 458 }
 459
 460 static void print_version()
 461 {
 462     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 463     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 464     g_print("This is free software, and you are welcome to redistribute it\n");
 465     g_print("under certain conditions. See the file COPYING for details.\n\n");
 466 }
 467
 468 static void print_help()
 469 {
 470     print_version();
 471     g_print("Syntax: %s [options]\n\n", BINARY);
 472     g_print("Options:\n\n");
 473     g_print("  -rc PATH          Specify the path to the rc file to use\n");
 474 #ifdef USE_SM
 475     g_print("  -sm-client-id ID  Specify session management ID\n");
 476     g_print("  -sm-disable       Disable connection to session manager\n");
 477 #endif
 478     g_print("  -help             Display this help and exit\n");
 479     g_print("  -version          Display the version and exit\n");
 480     g_print("  -sync             Run in synchronous mode (this is slow and\n"
 481             "                    meant for debugging X routines)\n");
 482     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 483 }
 484
 485 static void parse_args(int argc, char **argv)
 486 {
 487     int i;
 488
 489     for (i = 1; i < argc; ++i) {
 490         if (!strcmp(argv[i], "-version")) {
 491             print_version();
 492             exit(0);
 493         } else if (!strcmp(argv[i], "-help")) {
 494             print_help();
 495             exit(0);
 496         } else if (!strcmp(argv[i], "-sync")) {
 497             ob_sync = TRUE;
 498         } else if (!strcmp(argv[i], "-rc")) {
 499             if (i == argc - 1) /* no args left */
 500                 g_printerr(_("-rc requires an argument\n"));
 501             else
 502                 ob_rc_path = argv[++i];
 503 #ifdef USE_SM
 504         } else if (!strcmp(argv[i], "-sm-client-id")) {
 505             if (i == argc - 1) /* no args left */
 506                 g_printerr(_("-sm-client-id requires an argument\n"));
 507             else
 508                 ob_sm_id = argv[++i];
 509         } else if (!strcmp(argv[i], "-sm-disable")) {
 510             ob_sm_use = FALSE;
 511 #endif
 512         } else {
 513             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 514             print_help();
 515             exit(1);
 516         }
 517     }
 518 }
 519
 520 gboolean ob_pointer_pos(int *x, int *y)
 521 {
 522     Window w;
 523     int i;
 524     guint u;
 525
 526     return !!XQueryPointer(ob_display, ob_root, &w, &w, x, y, &i, &i, &u);
 527 }
 528
 529 #ifdef USE_SM
 530 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
 531                              Bool shutdown, int interact_style, Bool fast)
 532 {
 533     g_message("got SAVE YOURSELF from session manager");
 534     SmcSaveYourselfDone(conn, TRUE);
 535 }
 536
 537 static void sm_die(SmcConn conn, SmPointer data)
 538 {
 539     ob_shutdown = TRUE;
 540     g_message("got DIE from session manager");
 541 }
 542
 543 static void sm_save_complete(SmcConn conn, SmPointer data)
 544 {
 545     g_message("got SAVE COMPLETE from session manager");
 546 }
 547
 548 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data)
 549 {
 550     g_message("got SHUTDOWN CANCELLED from session manager");
 551 }
 552 #endif
 553
 554 static void exit_with_error(gchar *msg)
 555 {
 556     g_critical(msg);
 557     sm_shutdown();
 558     exit(EXIT_FAILURE);
 559 }