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;
  56 #endif
  57
  58 RrInstance *ob_rr_inst;
  59 RrTheme    *ob_rr_theme;
  60 Display    *ob_display;
  61 int         ob_screen;
  62 Window      ob_root;
  63 ObState     ob_state;
  64 Cursor      ob_cursors[OB_NUM_CURSORS];
  65 KeyCode     ob_keys[OB_NUM_KEYS];
  66
  67 static gboolean  sync;
  68 static gboolean  shutdown;
  69 static gboolean  restart;
  70 static char     *restart_path;
  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 = OB_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, 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     /* create available cursors */
 174     ob_cursors[OB_CURSOR_POINTER] =
 175         XCreateFontCursor(ob_display, XC_left_ptr);
 176     ob_cursors[OB_CURSOR_BUSY] =
 177         XCreateFontCursor(ob_display, XC_watch);
 178     ob_cursors[OB_CURSOR_MOVE] =
 179         XCreateFontCursor(ob_display, XC_fleur);
 180     ob_cursors[OB_CURSOR_NORTH] =
 181         XCreateFontCursor(ob_display, XC_top_side);
 182     ob_cursors[OB_CURSOR_NORTHEAST] =
 183         XCreateFontCursor(ob_display, XC_top_right_corner);
 184     ob_cursors[OB_CURSOR_EAST] =
 185         XCreateFontCursor(ob_display, XC_right_side);
 186     ob_cursors[OB_CURSOR_SOUTHEAST] =
 187         XCreateFontCursor(ob_display, XC_bottom_right_corner);
 188     ob_cursors[OB_CURSOR_SOUTH] =
 189         XCreateFontCursor(ob_display, XC_bottom_side);
 190     ob_cursors[OB_CURSOR_SOUTHWEST] =
 191         XCreateFontCursor(ob_display, XC_bottom_left_corner);
 192     ob_cursors[OB_CURSOR_WEST] =
 193         XCreateFontCursor(ob_display, XC_left_side);
 194     ob_cursors[OB_CURSOR_NORTHWEST] =
 195         XCreateFontCursor(ob_display, XC_top_left_corner);
 196
 197     /* create available keycodes */
 198     ob_keys[OB_KEY_RETURN] =
 199         XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
 200     ob_keys[OB_KEY_ESCAPE] =
 201         XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
 202     ob_keys[OB_KEY_LEFT] =
 203         XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
 204     ob_keys[OB_KEY_RIGHT] =
 205         XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
 206     ob_keys[OB_KEY_UP] =
 207         XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
 208     ob_keys[OB_KEY_DOWN] =
 209         XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
 210
 211     prop_startup(); /* get atoms values for the display */
 212     extensions_query_all(); /* find which extensions are present */
 213
 214     /* save stuff that we can use to restore state */
 215     startup_save();
 216
 217     if (screen_annex()) { /* it will be ours! */
 218         /* startup the parsing so everything can register sections of the rc */
 219         parse_startup();
 220
 221         /* anything that is going to read data from the rc file needs to be
 222            in this group */
 223         timer_startup();
 224         event_startup();
 225         grab_startup();
 226         /* focus_backup is used for stacking, so this needs to come before
 227            anything that calls stacking_add */
 228         focus_startup();
 229         window_startup();
 230         plugin_startup();
 231         /* load the plugins specified in the pluginrc */
 232         plugin_loadall();
 233
 234         /* set up the kernel config shit */
 235         config_startup();
 236         menu_startup();
 237         /* parse/load user options */
 238         if (parse_load_rc(&doc, &node))
 239             parse_tree(doc, node->xmlChildrenNode, NULL);
 240         /* we're done with parsing now, kill it */
 241         parse_shutdown();
 242
 243         /* load the theme specified in the rc file */
 244         ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 245         if (ob_rr_theme == NULL)
 246             exit_with_error("Unable to load a theme.");
 247
 248         frame_startup();
 249         moveresize_startup();
 250         screen_startup();
 251         group_startup();
 252         client_startup();
 253         dock_startup();
 254
 255         /* call startup for all the plugins */
 256         plugin_startall();
 257
 258         /* get all the existing windows */
 259         client_manage_all();
 260
 261         ob_state = OB_STATE_RUNNING;
 262         while (!shutdown)
 263             event_loop();
 264         ob_state = OB_STATE_EXITING;
 265
 266         dock_remove_all();
 267         client_unmanage_all();
 268
 269         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 270         dock_shutdown();
 271         client_shutdown();
 272         group_shutdown();
 273         screen_shutdown();
 274         focus_shutdown();
 275         moveresize_shutdown();
 276         frame_shutdown();
 277         menu_shutdown();
 278         window_shutdown();
 279         grab_shutdown();
 280         event_shutdown();
 281         timer_shutdown();
 282         config_shutdown();
 283     }
 284
 285     dispatch_shutdown();
 286
 287     RrThemeFree(ob_rr_theme);
 288     RrInstanceFree(ob_rr_inst);
 289
 290     sm_shutdown();
 291
 292     XCloseDisplay(ob_display);
 293
 294     if (restart) {
 295         if (restart_path != NULL) {
 296             int argcp;
 297             char **argvp;
 298             GError *err = NULL;
 299
 300             /* run other shit */
 301             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
 302                 execvp(argvp[0], argvp);
 303                 g_strfreev(argvp);
 304             } else {
 305                 g_warning("failed to execute '%s': %s", restart_path,
 306                           err->message);
 307             }
 308         }
 309
 310         /* re-run me */
 311         execvp(argv[0], argv); /* try how we were run */
 312     }
 313
 314     return 0;
 315 }
 316
 317 static void sm_startup(int argc, char **argv)
 318 {
 319 #ifdef USE_SM
 320
 321 #define SM_ERR_LEN 1024
 322
 323     SmcCallbacks cb;
 324     char sm_err[SM_ERR_LEN];
 325
 326     cb.save_yourself.callback = sm_save_yourself;
 327     cb.save_yourself.client_data = NULL;
 328
 329     cb.die.callback = sm_die;
 330     cb.die.client_data = NULL;
 331
 332     cb.save_complete.callback = sm_save_complete;
 333     cb.save_complete.client_data = NULL;
 334
 335     cb.shutdown_cancelled.callback = sm_shutdown_cancelled;
 336     cb.shutdown_cancelled.client_data = NULL;
 337
 338     ob_sm_conn = SmcOpenConnection(NULL, NULL, 1, 0,
 339                                    SmcSaveYourselfProcMask |
 340                                    SmcDieProcMask |
 341                                    SmcSaveCompleteProcMask |
 342                                    SmcShutdownCancelledProcMask,
 343                                    &cb, ob_sm_id, &ob_sm_id,
 344                                    SM_ERR_LEN, sm_err);
 345     if (ob_sm_conn == NULL)
 346         g_warning("Failed to connect to session manager: %s", sm_err);
 347     else {
 348         SmPropValue val_prog;
 349         SmPropValue val_uid;
 350         SmPropValue val_hint;
 351         SmPropValue val_pri;
 352         SmPropValue val_pid;
 353         SmProp prop_cmd = { SmCloneCommand, SmLISTofARRAY8, 1, };
 354         SmProp prop_res = { SmRestartCommand, SmLISTofARRAY8, };
 355         SmProp prop_prog = { SmProgram, SmARRAY8, 1, };
 356         SmProp prop_uid = { SmUserID, SmARRAY8, 1, };
 357         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 358         SmProp prop_pid = { SmProcessID, SmARRAY8, 1, };
 359         SmProp prop_pri = { "_GSM_Priority", SmCARD8, 1, };
 360         SmProp *props[7];
 361         gulong hint, pri;
 362         gchar pid[32];
 363         gint i, j;
 364         gboolean has_id;
 365
 366         for (i = 1; i < argc - 1; ++i)
 367             if (strcmp(argv[i], "--sm-client-id") == 0)
 368                 break;
 369         has_id = (i < argc - 1);
 370
 371         prop_cmd.vals = g_new(SmPropValue, (has_id ? argc-2 : argc));
 372         prop_cmd.num_vals = (has_id ? argc-2 : argc);
 373         for (i = 0, j = 0; i < argc; ++i, ++j) {
 374             if (strcmp (argv[i], "--sm-client-id") == 0) {
 375                 ++i, --j; /* skip the next as well, keep j where it is */
 376             } else {
 377                 prop_cmd.vals[j].value = argv[i];
 378                 prop_cmd.vals[j].length = strlen(argv[i]);
 379             }
 380         }
 381
 382         prop_res.vals = g_new(SmPropValue, (has_id ? argc : argc+2));
 383         prop_res.num_vals = (has_id ? argc : argc+2);
 384         for (i = 0, j = 0; i < argc; ++i, ++j) {
 385             if (strcmp (argv[i], "--sm-client-id") == 0) {
 386                 ++i, --j; /* skip the next as well, keep j where it is */
 387             } else {
 388                 prop_res.vals[j].value = argv[i];
 389                 prop_res.vals[j].length = strlen(argv[i]);
 390             }
 391         }
 392         prop_res.vals[j].value = "--sm-client-id";
 393         prop_res.vals[j++].length = strlen("--sm-client-id");
 394         prop_res.vals[j].value = ob_sm_id;
 395         prop_res.vals[j++].length = strlen(ob_sm_id);
 396
 397         val_prog.value = argv[0];
 398         val_prog.length = strlen(argv[0]);
 399
 400         val_uid.value = g_strdup(g_get_user_name());
 401         val_uid.length = strlen(val_uid.value);
 402
 403         hint = SmRestartImmediately;
 404         val_hint.value = &hint;
 405         val_hint.length = 1;
 406
 407         sprintf(pid, "%ld", (long)getpid());
 408         val_pid.value = pid;
 409         val_pid.length = strlen(pid);
 410
 411         /* priority with gnome-session-manager, low to run before other apps */
 412         pri = 20;
 413         val_pri.value = &pri;
 414         val_pri.length = 1;
 415
 416         prop_prog.vals = &val_prog;
 417         prop_uid.vals = &val_uid;
 418         prop_hint.vals = &val_hint;
 419         prop_pid.vals = &val_pid;
 420         prop_pri.vals = &val_pri;
 421
 422         props[0] = &prop_prog;
 423         props[1] = &prop_cmd;
 424         props[2] = &prop_res;
 425         props[3] = &prop_uid;
 426         props[4] = &prop_hint;
 427         props[5] = &prop_pid;
 428         props[6] = &prop_pri;
 429
 430         SmcSetProperties(ob_sm_conn, 7, props);
 431
 432         g_free(val_uid.value);
 433         g_free(prop_cmd.vals);
 434         g_free(prop_res.vals);
 435
 436         g_message("Connected to session manager with id %s", ob_sm_id);
 437     }
 438     g_free (ob_sm_id);
 439 #endif
 440 }
 441
 442 static void sm_shutdown()
 443 {
 444 #ifdef USE_SM
 445     if (ob_sm_conn) {
 446         SmPropValue val_hint;
 447         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 448         SmProp *props[1];
 449         gulong hint;
 450
 451         /* when we exit, we want to reset this to a more friendly state */
 452         hint = SmRestartIfRunning;
 453         val_hint.value = &hint;
 454         val_hint.length = 1;
 455
 456         prop_hint.vals = &val_hint;
 457
 458         props[0] = &prop_hint;
 459
 460         SmcSetProperties(ob_sm_conn, 1, props);
 461
 462         SmcCloseConnection(ob_sm_conn, 0, NULL);
 463     }
 464 #endif
 465 }
 466
 467 static void signal_handler(const ObEvent *e, void *data)
 468 {
 469     int s;
 470
 471     s = e->data.s.signal;
 472     switch (s) {
 473     case SIGUSR1:
 474         fprintf(stderr, "Caught SIGUSR1 signal. Restarting.");
 475         ob_restart();
 476         break;
 477
 478     case SIGHUP:
 479     case SIGINT:
 480     case SIGTERM:
 481     case SIGPIPE:
 482         fprintf(stderr, "Caught signal %d. Exiting.", s);
 483         ob_exit();
 484         break;
 485
 486     case SIGFPE:
 487     case SIGSEGV:
 488         fprintf(stderr, "Caught signal %d. Aborting and dumping core.", s);
 489         abort();
 490     }
 491 }
 492
 493 static void print_version()
 494 {
 495     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 496     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 497     g_print("This is free software, and you are welcome to redistribute it\n");
 498     g_print("under certain conditions. See the file COPYING for details.\n\n");
 499 }
 500
 501 static void print_help()
 502 {
 503     print_version();
 504     g_print("Syntax: openbox [options]\n\n");
 505     g_print("Options:\n\n");
 506 #ifdef USE_SM
 507     g_print("  --sm-client-id ID  Specify session management ID\n");
 508     g_print("  --sm-disable       Disable connection to session manager\n");
 509 #endif
 510     g_print("  --help             Display this help and exit\n");
 511     g_print("  --version          Display the version and exit\n");
 512     g_print("  --sync             Run in synchronous mode (this is slow and\n"
 513             "                     meant for debugging X routines)\n");
 514     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 515 }
 516
 517 static void parse_args(int argc, char **argv)
 518 {
 519     int i;
 520
 521     for (i = 1; i < argc; ++i) {
 522         if (!strcmp(argv[i], "--version")) {
 523             print_version();
 524             exit(0);
 525         } else if (!strcmp(argv[i], "--help")) {
 526             print_help();
 527             exit(0);
 528         } else if (!strcmp(argv[i], "--sync")) {
 529             sync = TRUE;
 530 #ifdef USE_SM
 531         } else if (!strcmp(argv[i], "--sm-client-id")) {
 532             if (i == argc - 1) /* no args left */
 533                 g_printerr(_("--sm-client-id requires an argument\n"));
 534             else
 535                 ob_sm_id = argv[++i];
 536         } else if (!strcmp(argv[i], "--sm-disable")) {
 537             ob_sm_use = FALSE;
 538 #endif
 539         } else {
 540             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 541             print_help();
 542             exit(1);
 543         }
 544     }
 545 }
 546
 547 gboolean ob_pointer_pos(int *x, int *y)
 548 {
 549     Window w;
 550     int i;
 551     guint u;
 552
 553     return !!XQueryPointer(ob_display, ob_root, &w, &w, x, y, &i, &i, &u);
 554 }
 555
 556 #ifdef USE_SM
 557 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
 558                              Bool shutdown, int interact_style, Bool fast)
 559 {
 560     g_message("got SAVE YOURSELF from session manager");
 561     SmcSaveYourselfDone(conn, TRUE);
 562 }
 563
 564 static void sm_die(SmcConn conn, SmPointer data)
 565 {
 566     ob_exit();
 567     g_message("got DIE from session manager");
 568 }
 569
 570 static void sm_save_complete(SmcConn conn, SmPointer data)
 571 {
 572     g_message("got SAVE COMPLETE from session manager");
 573 }
 574
 575 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data)
 576 {
 577     g_message("got SHUTDOWN CANCELLED from session manager");
 578 }
 579 #endif
 580
 581 static void exit_with_error(gchar *msg)
 582 {
 583     g_critical(msg);
 584     sm_shutdown();
 585     exit(EXIT_FAILURE);
 586 }
 587
 588 void ob_restart_other(const gchar *path)
 589 {
 590     restart_path = g_strdup(path);
 591     ob_restart();
 592 }
 593
 594 void ob_restart()
 595 {
 596     restart = TRUE;
 597     ob_exit();
 598 }
 599
 600 void ob_exit()
 601 {
 602     shutdown = TRUE;
 603 }
 604
 605 Cursor ob_cursor(ObCursor cursor)
 606 {
 607     g_assert(cursor < OB_NUM_CURSORS);
 608     return ob_cursors[cursor];
 609 }
 610
 611 KeyCode ob_keycode(ObKey key)
 612 {
 613     g_assert(key < OB_NUM_KEYS);
 614     return ob_keys[key];
 615 }