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 #include <X11/SM/SMlib.h>
  46 #include <X11/cursorfont.h>
  47
  48 #define SM_ERR_LEN 1024
  49
  50 SmcConn     ob_sm_conn;
  51 gchar      *ob_sm_id = NULL;
  52 RrInstance *ob_rr_inst = NULL;
  53 RrTheme    *ob_rr_theme = NULL;
  54 Display    *ob_display = NULL;
  55 int         ob_screen;
  56 Window      ob_root;
  57 State       ob_state;
  58 gboolean    ob_shutdown = FALSE;
  59 gboolean    ob_restart  = FALSE;
  60 char       *ob_restart_path = NULL;
  61 gboolean    ob_remote   = TRUE;
  62 gboolean    ob_sync     = FALSE;
  63 Cursors     ob_cursors;
  64 char       *ob_rc_path  = NULL;
  65
  66 static void signal_handler(const ObEvent *e, void *data);
  67 static void parse_args(int argc, char **argv);
  68 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
  69                              Bool shutdown, int interact_style, Bool fast);
  70 static void sm_die(SmcConn conn, SmPointer data);
  71 static void sm_save_complete(SmcConn conn, SmPointer data);
  72 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data);
  73 static void exit_with_error(gchar *msg);
  74
  75 int main(int argc, char **argv)
  76 {
  77     struct sigaction action;
  78     sigset_t sigset;
  79     char *path;
  80     xmlDocPtr doc;
  81     xmlNodePtr node;
  82     SmcCallbacks cb;
  83     char sm_err[SM_ERR_LEN];
  84
  85     ob_state = State_Starting;
  86
  87     /* initialize the locale */
  88     if (!setlocale(LC_ALL, ""))
  89         g_warning("Couldn't set locale from environment.\n");
  90     bindtextdomain(PACKAGE_NAME, LOCALEDIR);
  91     bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
  92     textdomain(PACKAGE_NAME);
  93
  94     /* start our event dispatcher and register for signals */
  95     dispatch_startup();
  96     dispatch_register(Event_Signal, signal_handler, NULL);
  97
  98     /* set up signal handler */
  99     sigemptyset(&sigset);
 100     action.sa_handler = dispatch_signal;
 101     action.sa_mask = sigset;
 102     action.sa_flags = SA_NOCLDSTOP;
 103     sigaction(SIGUSR1, &action, (struct sigaction *) NULL);
 104     sigaction(SIGPIPE, &action, (struct sigaction *) NULL);
 105     sigaction(SIGSEGV, &action, (struct sigaction *) NULL);
 106     sigaction(SIGFPE, &action, (struct sigaction *) NULL);
 107     sigaction(SIGTERM, &action, (struct sigaction *) NULL);
 108     sigaction(SIGINT, &action, (struct sigaction *) NULL);
 109     sigaction(SIGHUP, &action, (struct sigaction *) NULL);
 110
 111     /* create the ~/.openbox dir */
 112     path = g_build_filename(g_get_home_dir(), ".openbox", NULL);
 113     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 114                  S_IROTH | S_IWOTH | S_IXOTH));
 115     g_free(path);
 116     /* create the ~/.openbox/themes dir */
 117     path = g_build_filename(g_get_home_dir(), ".openbox", "themes", NULL);
 118     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 119                  S_IROTH | S_IWOTH | S_IXOTH));
 120     g_free(path);
 121
 122     /* parse out command line args */
 123     parse_args(argc, argv);
 124
 125     ob_display = XOpenDisplay(NULL);
 126     if (ob_display == NULL)
 127         exit_with_error("Failed to open the display.");
 128     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 129         exit_with_error("Failed to set display as close-on-exec.");
 130
 131     cb.save_yourself.callback = sm_save_yourself;
 132     cb.save_yourself.client_data = NULL;
 133
 134     cb.die.callback = sm_die;
 135     cb.die.client_data = NULL;
 136
 137     cb.save_complete.callback = sm_save_complete;
 138     cb.save_complete.client_data = NULL;
 139
 140     cb.shutdown_cancelled.callback = sm_shutdown_cancelled;
 141     cb.shutdown_cancelled.client_data = NULL;
 142
 143     ob_sm_conn = SmcOpenConnection(NULL, NULL, 1, 0,
 144                                    SmcSaveYourselfProcMask |
 145                                    SmcDieProcMask |
 146                                    SmcSaveCompleteProcMask |
 147                                    SmcShutdownCancelledProcMask,
 148                                    &cb, ob_sm_id, &ob_sm_id,
 149                                    SM_ERR_LEN, sm_err);
 150     if (ob_sm_conn == NULL)
 151         g_warning("Failed to connect to session manager: %s", sm_err);
 152     else {
 153         SmPropValue val_cmd;
 154         SmPropValue val_res;
 155         SmPropValue val_prog;
 156         SmPropValue val_uid;
 157         SmProp prop_cmd = { SmCloneCommand, "SmLISTofARRAY8", 1, };
 158         SmProp prop_res = { SmRestartCommand, "SmLISTofARRAY8", 1, };
 159         SmProp prop_prog = { SmProgram, "SmARRAY8", 1, };
 160         SmProp prop_uid = { SmUserID, "SmARRAY8", 1, };
 161         SmProp *props[4];
 162         gchar *user;
 163
 164         val_cmd.value = argv[0];
 165         val_cmd.length = strlen(argv[0]);
 166         val_res.value = argv[0];
 167         val_res.length = strlen(argv[0]); /* XXX -id foo */
 168         val_prog.value = argv[0];
 169         val_prog.length = strlen(argv[0]);
 170
 171         user = g_strdup_printf("%ld", (long)getuid());
 172         val_uid.value = user;
 173         val_uid.length = strlen(user);
 174
 175         prop_cmd.vals = &val_cmd;
 176         prop_res.vals = &val_res;
 177         prop_prog.vals = &val_prog;
 178         prop_uid.vals = &val_uid;
 179
 180         props[0] = &prop_cmd;
 181         props[1] = &prop_res;
 182         props[2] = &prop_prog;
 183         props[3] = &prop_uid;
 184
 185         SmcSetProperties(ob_sm_conn, 3, props);
 186
 187         g_free(user);
 188
 189         g_message("Connected to session manager with id %s", ob_sm_id);
 190     }
 191     g_free (ob_sm_id);
 192
 193 #ifdef USE_LIBSN
 194     ob_sn_display = sn_display_new(ob_display, NULL, NULL);
 195 #endif
 196
 197     ob_screen = DefaultScreen(ob_display);
 198     ob_root = RootWindow(ob_display, ob_screen);
 199
 200     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 201     if (ob_rr_inst == NULL)
 202         exit_with_error("Failed to initialize the render library.");
 203
 204     /* XXX fork self onto other screens */
 205
 206     XSynchronize(ob_display, ob_sync);
 207
 208     /* check for locale support */
 209     if (!XSupportsLocale())
 210         g_warning("X server does not support locale.");
 211     if (!XSetLocaleModifiers(""))
 212         g_warning("Cannot set locale modifiers for the X server.");
 213
 214     /* set our error handler */
 215     XSetErrorHandler(xerror_handler);
 216
 217     /* set the DISPLAY environment variable for any lauched children, to the
 218        display we're using, so they open in the right place. */
 219     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 220
 221     ob_cursors.ptr = XCreateFontCursor(ob_display, XC_left_ptr);
 222     ob_cursors.busy = XCreateFontCursor(ob_display, XC_watch);
 223     ob_cursors.move = XCreateFontCursor(ob_display, XC_fleur);
 224     ob_cursors.tl = XCreateFontCursor(ob_display, XC_top_left_corner);
 225     ob_cursors.tr = XCreateFontCursor(ob_display, XC_top_right_corner);
 226     ob_cursors.bl = XCreateFontCursor(ob_display, XC_bottom_left_corner);
 227     ob_cursors.br = XCreateFontCursor(ob_display, XC_bottom_right_corner);
 228     ob_cursors.t = XCreateFontCursor(ob_display, XC_top_side);
 229     ob_cursors.r = XCreateFontCursor(ob_display, XC_right_side);
 230     ob_cursors.b = XCreateFontCursor(ob_display, XC_bottom_side);
 231     ob_cursors.l = XCreateFontCursor(ob_display, XC_left_side);
 232
 233     prop_startup(); /* get atoms values for the display */
 234     extensions_query_all(); /* find which extensions are present */
 235
 236     /* save stuff that we can use to restore state */
 237     startup_save();
 238
 239     if (screen_annex()) { /* it will be ours! */
 240         /* startup the parsing so everything can register sections of the rc */
 241         parse_startup();
 242
 243         /* anything that is going to read data from the rc file needs to be
 244            in this group */
 245         timer_startup();
 246         event_startup();
 247         grab_startup();
 248         plugin_startup();
 249         /* load the plugins specified in the pluginrc */
 250         plugin_loadall();
 251
 252         /* set up the kernel config shit */
 253         config_startup();
 254         /* parse/load user options */
 255         if (parse_load_rc(&doc, &node))
 256             parse_tree(doc, node->xmlChildrenNode, NULL);
 257         /* we're done with parsing now, kill it */
 258         parse_shutdown();
 259
 260         /* load the theme specified in the rc file */
 261         ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 262         if (ob_rr_theme == NULL)
 263             exit_with_error("Unable to load a theme.");
 264
 265         window_startup();
 266         menu_startup();
 267         frame_startup();
 268         moveresize_startup();
 269         focus_startup();
 270         screen_startup();
 271         group_startup();
 272         client_startup();
 273         dock_startup();
 274
 275         /* call startup for all the plugins */
 276         plugin_startall();
 277
 278         /* get all the existing windows */
 279         client_manage_all();
 280
 281         ob_state = State_Running;
 282         while (!ob_shutdown)
 283             event_loop();
 284         ob_state = State_Exiting;
 285
 286         dock_remove_all();
 287         client_unmanage_all();
 288
 289         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 290         dock_shutdown();
 291         client_shutdown();
 292         group_shutdown();
 293         screen_shutdown();
 294         focus_shutdown();
 295         moveresize_shutdown();
 296         frame_shutdown();
 297         menu_shutdown();
 298         window_shutdown();
 299         grab_shutdown();
 300         event_shutdown();
 301         timer_shutdown();
 302         config_shutdown();
 303     }
 304
 305     dispatch_shutdown();
 306
 307     RrThemeFree(ob_rr_theme);
 308     RrInstanceFree(ob_rr_inst);
 309
 310     if (ob_sm_conn)
 311         SmcCloseConnection(ob_sm_conn, 0, NULL);
 312     XCloseDisplay(ob_display);
 313
 314     if (ob_restart) {
 315         if (ob_restart_path != NULL) {
 316             int argcp;
 317             char **argvp;
 318             GError *err = NULL;
 319
 320             /* run other shit */
 321             if (g_shell_parse_argv(ob_restart_path, &argcp, &argvp, &err)) {
 322                 execvp(argvp[0], argvp);
 323                 g_strfreev(argvp);
 324             } else {
 325                 g_warning("failed to execute '%s': %s", ob_restart_path,
 326                           err->message);
 327             }
 328         }
 329
 330         /* re-run me */
 331         execvp(argv[0], argv); /* try how we were run */
 332         execlp(BINARY, BINARY, NULL); /* try this as a last resort */
 333     }
 334
 335     return 0;
 336 }
 337
 338 static void signal_handler(const ObEvent *e, void *data)
 339 {
 340     int s;
 341
 342     s = e->data.s.signal;
 343     switch (s) {
 344     case SIGUSR1:
 345         g_message("Caught SIGUSR1 signal. Restarting.");
 346         ob_shutdown = ob_restart = TRUE;
 347         break;
 348
 349     case SIGHUP:
 350     case SIGINT:
 351     case SIGTERM:
 352     case SIGPIPE:
 353         g_message("Caught signal %d. Exiting.", s);
 354         ob_shutdown = TRUE;
 355         break;
 356
 357     case SIGFPE:
 358     case SIGSEGV:
 359         g_message("Caught signal %d. Aborting and dumping core.", s);
 360         abort();
 361     }
 362 }
 363
 364 static void print_version()
 365 {
 366     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 367     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 368     g_print("This is free software, and you are welcome to redistribute it\n");
 369     g_print("under certain conditions. See the file COPYING for details.\n\n");
 370 }
 371
 372 static void print_help()
 373 {
 374     print_version();
 375     g_print("Syntax: %s [options]\n\n", BINARY);
 376     g_print("Options:\n\n");
 377     g_print("  -rc PATH     Specify the path to the rc file to use\n");
 378     g_print("  -help        Display this help and exit\n");
 379     g_print("  -version     Display the version and exit\n");
 380     g_print("  -sync        Run in synchronous mode (this is slow and meant\n"
 381             "               for debugging X routines)\n");
 382     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 383 }
 384
 385 static void parse_args(int argc, char **argv)
 386 {
 387     int i;
 388
 389     for (i = 1; i < argc; ++i) {
 390         if (!strcmp(argv[i], "-version")) {
 391             print_version();
 392             exit(0);
 393         } else if (!strcmp(argv[i], "-help")) {
 394             print_help();
 395             exit(0);
 396         } else if (!strcmp(argv[i], "-sync")) {
 397             ob_sync = TRUE;
 398         } else if (!strcmp(argv[i], "-rc")) {
 399             if (i == argc - 1) /* no args left */
 400                 g_printerr("-rc requires an argument\n");
 401             else
 402                 ob_rc_path = argv[++i];
 403         } else {
 404             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 405             print_help();
 406             exit(1);
 407         }
 408     }
 409 }
 410
 411 gboolean ob_pointer_pos(int *x, int *y)
 412 {
 413     Window w;
 414     int i;
 415     guint u;
 416
 417     return !!XQueryPointer(ob_display, ob_root, &w, &w, x, y, &i, &i, &u);
 418 }
 419
 420 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
 421                              Bool shutdown, int interact_style, Bool fast)
 422 {
 423     g_message("got SAVE YOURSELF from session manager");
 424     SmcSaveYourselfDone(conn, TRUE);
 425 }
 426
 427 static void sm_die(SmcConn conn, SmPointer data)
 428 {
 429     ob_shutdown = TRUE;
 430     g_message("got DIE from session manager");
 431 }
 432
 433 static void sm_save_complete(SmcConn conn, SmPointer data)
 434 {
 435     g_message("got SAVE COMPLETE from session manager");
 436 }
 437
 438 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data)
 439 {
 440     g_message("got SHUTDOWN CANCELLED from session manager");
 441 }
 442
 443 static void exit_with_error(gchar *msg)
 444 {
 445     g_critical(msg);
 446     if (ob_sm_conn)
 447         SmcCloseConnection(ob_sm_conn, 1, &msg);
 448     exit(EXIT_FAILURE);
 449 }