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 SmcConn     ob_sm_conn;
  53 gchar      *ob_sm_id = NULL;
  54 #endif
  55
  56 RrInstance *ob_rr_inst = NULL;
  57 RrTheme    *ob_rr_theme = NULL;
  58 Display    *ob_display = NULL;
  59 int         ob_screen;
  60 Window      ob_root;
  61 State       ob_state;
  62 gboolean    ob_shutdown = FALSE;
  63 gboolean    ob_restart  = FALSE;
  64 char       *ob_restart_path = NULL;
  65 gboolean    ob_remote   = TRUE;
  66 gboolean    ob_sync     = FALSE;
  67 Cursors     ob_cursors;
  68 char       *ob_rc_path  = NULL;
  69
  70 static void signal_handler(const ObEvent *e, void *data);
  71 static void parse_args(int argc, char **argv);
  72
  73 static void sm_startup(int argc, char **argv);
  74 static void sm_shutdown();
  75
  76 #ifdef USE_SM
  77 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
  78                              Bool shutdown, int interact_style, Bool fast);
  79 static void sm_die(SmcConn conn, SmPointer data);
  80 static void sm_save_complete(SmcConn conn, SmPointer data);
  81 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data);
  82 #endif
  83 static void exit_with_error(gchar *msg);
  84
  85 int main(int argc, char **argv)
  86 {
  87     struct sigaction action;
  88     sigset_t sigset;
  89     char *path;
  90     xmlDocPtr doc;
  91     xmlNodePtr node;
  92
  93     ob_state = State_Starting;
  94
  95     /* initialize the locale */
  96     if (!setlocale(LC_ALL, ""))
  97         g_warning("Couldn't set locale from environment.\n");
  98     bindtextdomain(PACKAGE_NAME, LOCALEDIR);
  99     bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
 100     textdomain(PACKAGE_NAME);
 101
 102     /* start our event dispatcher and register for signals */
 103     dispatch_startup();
 104     dispatch_register(Event_Signal, signal_handler, NULL);
 105
 106     /* set up signal handler */
 107     sigemptyset(&sigset);
 108     action.sa_handler = dispatch_signal;
 109     action.sa_mask = sigset;
 110     action.sa_flags = SA_NOCLDSTOP;
 111     sigaction(SIGUSR1, &action, (struct sigaction *) NULL);
 112     sigaction(SIGPIPE, &action, (struct sigaction *) NULL);
 113     sigaction(SIGSEGV, &action, (struct sigaction *) NULL);
 114     sigaction(SIGFPE, &action, (struct sigaction *) NULL);
 115     sigaction(SIGTERM, &action, (struct sigaction *) NULL);
 116     sigaction(SIGINT, &action, (struct sigaction *) NULL);
 117     sigaction(SIGHUP, &action, (struct sigaction *) NULL);
 118
 119     /* create the ~/.openbox dir */
 120     path = g_build_filename(g_get_home_dir(), ".openbox", NULL);
 121     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 122                  S_IROTH | S_IWOTH | S_IXOTH));
 123     g_free(path);
 124     /* create the ~/.openbox/themes dir */
 125     path = g_build_filename(g_get_home_dir(), ".openbox", "themes", NULL);
 126     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 127                  S_IROTH | S_IWOTH | S_IXOTH));
 128     g_free(path);
 129
 130     /* parse out command line args */
 131     parse_args(argc, argv);
 132
 133     ob_display = XOpenDisplay(NULL);
 134     if (ob_display == NULL)
 135         exit_with_error("Failed to open the display.");
 136     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 137         exit_with_error("Failed to set display as close-on-exec.");
 138
 139     sm_startup(argc, argv);
 140
 141 #ifdef USE_LIBSN
 142     ob_sn_display = sn_display_new(ob_display, NULL, NULL);
 143 #endif
 144
 145     ob_screen = DefaultScreen(ob_display);
 146     ob_root = RootWindow(ob_display, ob_screen);
 147
 148     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 149     if (ob_rr_inst == NULL)
 150         exit_with_error("Failed to initialize the render library.");
 151
 152     /* XXX fork self onto other screens */
 153
 154     XSynchronize(ob_display, ob_sync);
 155
 156     /* check for locale support */
 157     if (!XSupportsLocale())
 158         g_warning("X server does not support locale.");
 159     if (!XSetLocaleModifiers(""))
 160         g_warning("Cannot set locale modifiers for the X server.");
 161
 162     /* set our error handler */
 163     XSetErrorHandler(xerror_handler);
 164
 165     /* set the DISPLAY environment variable for any lauched children, to the
 166        display we're using, so they open in the right place. */
 167     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 168
 169     ob_cursors.ptr = XCreateFontCursor(ob_display, XC_left_ptr);
 170     ob_cursors.busy = XCreateFontCursor(ob_display, XC_watch);
 171     ob_cursors.move = XCreateFontCursor(ob_display, XC_fleur);
 172     ob_cursors.tl = XCreateFontCursor(ob_display, XC_top_left_corner);
 173     ob_cursors.tr = XCreateFontCursor(ob_display, XC_top_right_corner);
 174     ob_cursors.bl = XCreateFontCursor(ob_display, XC_bottom_left_corner);
 175     ob_cursors.br = XCreateFontCursor(ob_display, XC_bottom_right_corner);
 176     ob_cursors.t = XCreateFontCursor(ob_display, XC_top_side);
 177     ob_cursors.r = XCreateFontCursor(ob_display, XC_right_side);
 178     ob_cursors.b = XCreateFontCursor(ob_display, XC_bottom_side);
 179     ob_cursors.l = XCreateFontCursor(ob_display, XC_left_side);
 180
 181     prop_startup(); /* get atoms values for the display */
 182     extensions_query_all(); /* find which extensions are present */
 183
 184     /* save stuff that we can use to restore state */
 185     startup_save();
 186
 187     if (screen_annex()) { /* it will be ours! */
 188         /* startup the parsing so everything can register sections of the rc */
 189         parse_startup();
 190
 191         /* anything that is going to read data from the rc file needs to be
 192            in this group */
 193         timer_startup();
 194         event_startup();
 195         grab_startup();
 196         plugin_startup();
 197         /* load the plugins specified in the pluginrc */
 198         plugin_loadall();
 199
 200         /* set up the kernel config shit */
 201         config_startup();
 202         /* parse/load user options */
 203         if (parse_load_rc(&doc, &node))
 204             parse_tree(doc, node->xmlChildrenNode, NULL);
 205         /* we're done with parsing now, kill it */
 206         parse_shutdown();
 207
 208         /* load the theme specified in the rc file */
 209         ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 210         if (ob_rr_theme == NULL)
 211             exit_with_error("Unable to load a theme.");
 212
 213         window_startup();
 214         menu_startup();
 215         frame_startup();
 216         moveresize_startup();
 217         focus_startup();
 218         screen_startup();
 219         group_startup();
 220         client_startup();
 221         dock_startup();
 222
 223         /* call startup for all the plugins */
 224         plugin_startall();
 225
 226         /* get all the existing windows */
 227         client_manage_all();
 228
 229         ob_state = State_Running;
 230         while (!ob_shutdown)
 231             event_loop();
 232         ob_state = State_Exiting;
 233
 234         dock_remove_all();
 235         client_unmanage_all();
 236
 237         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 238         dock_shutdown();
 239         client_shutdown();
 240         group_shutdown();
 241         screen_shutdown();
 242         focus_shutdown();
 243         moveresize_shutdown();
 244         frame_shutdown();
 245         menu_shutdown();
 246         window_shutdown();
 247         grab_shutdown();
 248         event_shutdown();
 249         timer_shutdown();
 250         config_shutdown();
 251     }
 252
 253     dispatch_shutdown();
 254
 255     RrThemeFree(ob_rr_theme);
 256     RrInstanceFree(ob_rr_inst);
 257
 258     sm_shutdown();
 259
 260     XCloseDisplay(ob_display);
 261
 262     if (ob_restart) {
 263         if (ob_restart_path != NULL) {
 264             int argcp;
 265             char **argvp;
 266             GError *err = NULL;
 267
 268             /* run other shit */
 269             if (g_shell_parse_argv(ob_restart_path, &argcp, &argvp, &err)) {
 270                 execvp(argvp[0], argvp);
 271                 g_strfreev(argvp);
 272             } else {
 273                 g_warning("failed to execute '%s': %s", ob_restart_path,
 274                           err->message);
 275             }
 276         }
 277
 278         /* re-run me */
 279         execvp(argv[0], argv); /* try how we were run */
 280         execlp(BINARY, BINARY, NULL); /* try this as a last resort */
 281     }
 282
 283     return 0;
 284 }
 285
 286 static void sm_startup(int argc, char **argv)
 287 {
 288 #ifdef USE_SM
 289
 290 #define SM_ERR_LEN 1024
 291
 292     SmcCallbacks cb;
 293     char sm_err[SM_ERR_LEN];
 294
 295     cb.save_yourself.callback = sm_save_yourself;
 296     cb.save_yourself.client_data = NULL;
 297
 298     cb.die.callback = sm_die;
 299     cb.die.client_data = NULL;
 300
 301     cb.save_complete.callback = sm_save_complete;
 302     cb.save_complete.client_data = NULL;
 303
 304     cb.shutdown_cancelled.callback = sm_shutdown_cancelled;
 305     cb.shutdown_cancelled.client_data = NULL;
 306
 307     ob_sm_conn = SmcOpenConnection(NULL, NULL, 1, 0,
 308                                    SmcSaveYourselfProcMask |
 309                                    SmcDieProcMask |
 310                                    SmcSaveCompleteProcMask |
 311                                    SmcShutdownCancelledProcMask,
 312                                    &cb, ob_sm_id, &ob_sm_id,
 313                                    SM_ERR_LEN, sm_err);
 314     if (ob_sm_conn == NULL)
 315         g_warning("Failed to connect to session manager: %s", sm_err);
 316     else {
 317         SmPropValue val_cmd;
 318         SmPropValue val_res;
 319         SmPropValue val_prog;
 320         SmPropValue val_uid;
 321         SmProp prop_cmd = { SmCloneCommand, "SmLISTofARRAY8", 1, };
 322         SmProp prop_res = { SmRestartCommand, "SmLISTofARRAY8", 1, };
 323         SmProp prop_prog = { SmProgram, "SmARRAY8", 1, };
 324         SmProp prop_uid = { SmUserID, "SmARRAY8", 1, };
 325         SmProp *props[4];
 326
 327         val_cmd.value = argv[0];
 328         val_cmd.length = strlen(argv[0]);
 329         val_res.value = argv[0];
 330         val_res.length = strlen(argv[0]); /* XXX -id foo */
 331         val_prog.value = argv[0];
 332         val_prog.length = strlen(argv[0]);
 333
 334         val_uid.value = g_strdup_printf("%ld", (long)getuid());
 335         val_uid.length = strlen(val_uid.value);
 336
 337         prop_cmd.vals = &val_cmd;
 338         prop_res.vals = &val_res;
 339         prop_prog.vals = &val_prog;
 340         prop_uid.vals = &val_uid;
 341
 342         props[0] = &prop_cmd;
 343         props[1] = &prop_res;
 344         props[2] = &prop_prog;
 345         props[3] = &prop_uid;
 346
 347         SmcSetProperties(ob_sm_conn, 3, props);
 348
 349         g_free(val_uid.value);
 350
 351         g_message("Connected to session manager with id %s", ob_sm_id);
 352     }
 353     g_free (ob_sm_id);
 354 #endif
 355 }
 356
 357 static void sm_shutdown()
 358 {
 359 #ifdef USE_SM
 360     if (ob_sm_conn)
 361         SmcCloseConnection(ob_sm_conn, 0, NULL);
 362 #endif
 363 }
 364
 365 static void signal_handler(const ObEvent *e, void *data)
 366 {
 367     int s;
 368
 369     s = e->data.s.signal;
 370     switch (s) {
 371     case SIGUSR1:
 372         g_message("Caught SIGUSR1 signal. Restarting.");
 373         ob_shutdown = ob_restart = TRUE;
 374         break;
 375
 376     case SIGHUP:
 377     case SIGINT:
 378     case SIGTERM:
 379     case SIGPIPE:
 380         g_message("Caught signal %d. Exiting.", s);
 381         ob_shutdown = TRUE;
 382         break;
 383
 384     case SIGFPE:
 385     case SIGSEGV:
 386         g_message("Caught signal %d. Aborting and dumping core.", s);
 387         abort();
 388     }
 389 }
 390
 391 static void print_version()
 392 {
 393     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 394     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 395     g_print("This is free software, and you are welcome to redistribute it\n");
 396     g_print("under certain conditions. See the file COPYING for details.\n\n");
 397 }
 398
 399 static void print_help()
 400 {
 401     print_version();
 402     g_print("Syntax: %s [options]\n\n", BINARY);
 403     g_print("Options:\n\n");
 404     g_print("  -rc PATH     Specify the path to the rc file to use\n");
 405     g_print("  -help        Display this help and exit\n");
 406     g_print("  -version     Display the version and exit\n");
 407     g_print("  -sync        Run in synchronous mode (this is slow and meant\n"
 408             "               for debugging X routines)\n");
 409     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 410 }
 411
 412 static void parse_args(int argc, char **argv)
 413 {
 414     int i;
 415
 416     for (i = 1; i < argc; ++i) {
 417         if (!strcmp(argv[i], "-version")) {
 418             print_version();
 419             exit(0);
 420         } else if (!strcmp(argv[i], "-help")) {
 421             print_help();
 422             exit(0);
 423         } else if (!strcmp(argv[i], "-sync")) {
 424             ob_sync = TRUE;
 425         } else if (!strcmp(argv[i], "-rc")) {
 426             if (i == argc - 1) /* no args left */
 427                 g_printerr("-rc requires an argument\n");
 428             else
 429                 ob_rc_path = argv[++i];
 430         } else {
 431             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 432             print_help();
 433             exit(1);
 434         }
 435     }
 436 }
 437
 438 gboolean ob_pointer_pos(int *x, int *y)
 439 {
 440     Window w;
 441     int i;
 442     guint u;
 443
 444     return !!XQueryPointer(ob_display, ob_root, &w, &w, x, y, &i, &i, &u);
 445 }
 446
 447 #ifdef USE_SM
 448 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
 449                              Bool shutdown, int interact_style, Bool fast)
 450 {
 451     g_message("got SAVE YOURSELF from session manager");
 452     SmcSaveYourselfDone(conn, TRUE);
 453 }
 454
 455 static void sm_die(SmcConn conn, SmPointer data)
 456 {
 457     ob_shutdown = TRUE;
 458     g_message("got DIE from session manager");
 459 }
 460
 461 static void sm_save_complete(SmcConn conn, SmPointer data)
 462 {
 463     g_message("got SAVE COMPLETE from session manager");
 464 }
 465
 466 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data)
 467 {
 468     g_message("got SHUTDOWN CANCELLED from session manager");
 469 }
 470 #endif
 471
 472 static void exit_with_error(gchar *msg)
 473 {
 474     g_critical(msg);
 475     sm_shutdown();
 476     exit(EXIT_FAILURE);
 477 }