Dogcows Code - chaz/openbox/blob - openbox/openbox.c

   1 #include "debug.h"
   2 #include "openbox.h"
   3 #include "session.h"
   4 #include "dock.h"
   5 #include "event.h"
   6 #include "menu.h"
   7 #include "client.h"
   8 #include "xerror.h"
   9 #include "prop.h"
  10 #include "startup.h"
  11 #include "screen.h"
  12 #include "focus.h"
  13 #include "moveresize.h"
  14 #include "frame.h"
  15 #include "keyboard.h"
  16 #include "mouse.h"
  17 #include "extensions.h"
  18 #include "grab.h"
  19 #include "group.h"
  20 #include "config.h"
  21 #include "mainloop.h"
  22 #include "gettext.h"
  23 #include "parser/parse.h"
  24 #include "render/render.h"
  25 #include "render/theme.h"
  26
  27 #ifdef HAVE_FCNTL_H
  28 #  include <fcntl.h>
  29 #endif
  30 #ifdef HAVE_SIGNAL_H
  31 #define __USE_UNIX98
  32 #  include <signal.h>
  33 #endif
  34 #ifdef HAVE_STDLIB_H
  35 #  include <stdlib.h>
  36 #endif
  37 #ifdef HAVE_LOCALE_H
  38 #  include <locale.h>
  39 #endif
  40 #ifdef HAVE_SYS_STAT_H
  41 #  include <sys/stat.h>
  42 #  include <sys/types.h>
  43 #endif
  44 #ifdef HAVE_UNISTD_H
  45 #  include <unistd.h>
  46 #endif
  47
  48 #include <X11/cursorfont.h>
  49
  50 RrInstance *ob_rr_inst;
  51 RrTheme    *ob_rr_theme;
  52 ObMainLoop *ob_main_loop;
  53 Display    *ob_display;
  54 gint        ob_screen;
  55 gboolean    ob_sm_use = TRUE;
  56 gchar      *ob_sm_id;
  57 gboolean    ob_replace_wm;
  58
  59 static ObState   state;
  60 static gboolean  xsync;
  61 static gboolean  restart;
  62 static char     *restart_path;
  63 static Cursor    cursors[OB_NUM_CURSORS];
  64 static KeyCode   keys[OB_NUM_KEYS];
  65 static gchar    *sm_save_file;
  66
  67 static void signal_handler(int signal, gpointer data);
  68 static void parse_args(int argc, char **argv);
  69
  70 int main(int argc, char **argv)
  71 {
  72     char *path;
  73     xmlDocPtr doc;
  74     xmlNodePtr node;
  75
  76 #ifdef DEBUG
  77     ob_debug_show_output(TRUE);
  78 #endif
  79
  80     state = OB_STATE_STARTING;
  81
  82     /* initialize the locale */
  83     if (!setlocale(LC_ALL, ""))
  84         g_warning("Couldn't set locale from environment.\n");
  85     bindtextdomain(PACKAGE_NAME, LOCALEDIR);
  86     bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
  87     textdomain(PACKAGE_NAME);
  88
  89     /* create the ~/.openbox dir */
  90     path = g_build_filename(g_get_home_dir(), ".openbox", NULL);
  91     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
  92                  S_IROTH | S_IWOTH | S_IXOTH));
  93     g_free(path);
  94     /* create the ~/.openbox/themes dir */
  95     path = g_build_filename(g_get_home_dir(), ".openbox", "themes", NULL);
  96     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
  97                  S_IROTH | S_IWOTH | S_IXOTH));
  98     g_free(path);
  99     /* create the ~/.openbox/sessions dir */
 100     path = g_build_filename(g_get_home_dir(), ".openbox", "sessions", NULL);
 101     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 102                  S_IROTH | S_IWOTH | S_IXOTH));
 103     g_free(path);
 104
 105     g_set_prgname(argv[0]);
 106
 107     /* parse out command line args */
 108     parse_args(argc, argv);
 109
 110     ob_display = XOpenDisplay(NULL);
 111     if (ob_display == NULL)
 112         ob_exit_with_error("Failed to open the display.");
 113     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
 114         ob_exit_with_error("Failed to set display as close-on-exec.");
 115
 116     ob_main_loop = ob_main_loop_new(ob_display);
 117
 118     /* set up signal handler */
 119     ob_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL, NULL);
 120     ob_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL, NULL);
 121     ob_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL, NULL);
 122     ob_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL, NULL);
 123     ob_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL, NULL);
 124
 125     if (sm_save_file)
 126         session_load(sm_save_file);
 127     session_startup(argc, argv);
 128
 129 #ifdef USE_LIBSN
 130     ob_sn_display = sn_display_new(ob_display, NULL, NULL);
 131 #endif
 132
 133     ob_screen = DefaultScreen(ob_display);
 134
 135     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 136     if (ob_rr_inst == NULL)
 137         ob_exit_with_error("Failed to initialize the render library.");
 138
 139     /* XXX fork self onto other screens */
 140
 141     XSynchronize(ob_display, xsync);
 142
 143     /* check for locale support */
 144     if (!XSupportsLocale())
 145         g_warning("X server does not support locale.");
 146     if (!XSetLocaleModifiers(""))
 147         g_warning("Cannot set locale modifiers for the X server.");
 148
 149     /* set our error handler */
 150     XSetErrorHandler(xerror_handler);
 151
 152     /* set the DISPLAY environment variable for any lauched children, to the
 153        display we're using, so they open in the right place. */
 154     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 155
 156     /* create available cursors */
 157     cursors[OB_CURSOR_POINTER] =
 158         XCreateFontCursor(ob_display, XC_left_ptr);
 159     cursors[OB_CURSOR_BUSY] =
 160         XCreateFontCursor(ob_display, XC_watch);
 161     cursors[OB_CURSOR_MOVE] =
 162         XCreateFontCursor(ob_display, XC_fleur);
 163     cursors[OB_CURSOR_NORTH] =
 164         XCreateFontCursor(ob_display, XC_top_side);
 165     cursors[OB_CURSOR_NORTHEAST] =
 166         XCreateFontCursor(ob_display, XC_top_right_corner);
 167     cursors[OB_CURSOR_EAST] =
 168         XCreateFontCursor(ob_display, XC_right_side);
 169     cursors[OB_CURSOR_SOUTHEAST] =
 170         XCreateFontCursor(ob_display, XC_bottom_right_corner);
 171     cursors[OB_CURSOR_SOUTH] =
 172         XCreateFontCursor(ob_display, XC_bottom_side);
 173     cursors[OB_CURSOR_SOUTHWEST] =
 174         XCreateFontCursor(ob_display, XC_bottom_left_corner);
 175     cursors[OB_CURSOR_WEST] =
 176         XCreateFontCursor(ob_display, XC_left_side);
 177     cursors[OB_CURSOR_NORTHWEST] =
 178         XCreateFontCursor(ob_display, XC_top_left_corner);
 179
 180     /* create available keycodes */
 181     keys[OB_KEY_RETURN] =
 182         XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
 183     keys[OB_KEY_ESCAPE] =
 184         XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
 185     keys[OB_KEY_LEFT] =
 186         XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
 187     keys[OB_KEY_RIGHT] =
 188         XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
 189     keys[OB_KEY_UP] =
 190         XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
 191     keys[OB_KEY_DOWN] =
 192         XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
 193
 194     prop_startup(); /* get atoms values for the display */
 195     extensions_query_all(); /* find which extensions are present */
 196
 197     /* save stuff that we can use to restore state */
 198     startup_save();
 199
 200     if (screen_annex()) { /* it will be ours! */
 201         ObParseInst *i;
 202
 203         /* startup the parsing so everything can register sections of the rc */
 204         i = parse_startup();
 205
 206         event_startup();
 207         grab_startup();
 208         /* focus_backup is used for stacking, so this needs to come before
 209            anything that calls stacking_add */
 210         focus_startup();
 211         window_startup();
 212
 213         /* set up the kernel config shit */
 214         config_startup(i);
 215         /* parse/load user options */
 216         if (parse_load_rc(&doc, &node))
 217             parse_tree(i, doc, node->xmlChildrenNode);
 218         /* we're done with parsing now, kill it */
 219         xmlFreeDoc(doc);
 220         parse_shutdown(i);
 221
 222         /* load the theme specified in the rc file */
 223         ob_rr_theme = RrThemeNew(ob_rr_inst, config_theme);
 224         if (ob_rr_theme == NULL)
 225             ob_exit_with_error("Unable to load a theme.");
 226
 227         moveresize_startup();
 228         screen_startup();
 229         group_startup();
 230         client_startup();
 231         dock_startup();
 232         keyboard_startup();
 233         mouse_startup();
 234         menu_startup();
 235
 236         /* get all the existing windows */
 237         client_manage_all();
 238
 239         state = OB_STATE_RUNNING;
 240         ob_main_loop_run(ob_main_loop);
 241         state = OB_STATE_EXITING;
 242
 243         dock_remove_all();
 244         client_unmanage_all();
 245
 246         menu_shutdown();
 247         mouse_shutdown();
 248         keyboard_shutdown();
 249         dock_shutdown();
 250         client_shutdown();
 251         group_shutdown();
 252         screen_shutdown();
 253         focus_shutdown();
 254         moveresize_shutdown();
 255         window_shutdown();
 256         grab_shutdown();
 257         event_shutdown();
 258         config_shutdown();
 259     }
 260
 261     RrThemeFree(ob_rr_theme);
 262     RrInstanceFree(ob_rr_inst);
 263
 264     session_shutdown();
 265     g_free(ob_sm_id);
 266
 267 #ifdef USE_LIBSN
 268     sn_display_unref(ob_sn_display);
 269 #endif
 270
 271     XCloseDisplay(ob_display);
 272
 273     if (restart) {
 274         if (restart_path != NULL) {
 275             int argcp;
 276             char **argvp;
 277             GError *err = NULL;
 278
 279             /* run other shit */
 280             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
 281                 execvp(argvp[0], argvp);
 282                 g_strfreev(argvp);
 283             } else {
 284                 g_warning("failed to execute '%s': %s", restart_path,
 285                           err->message);
 286             }
 287         }
 288
 289         /* re-run me */
 290         execvp(argv[0], argv); /* try how we were run */
 291     }
 292
 293     return 0;
 294 }
 295
 296 static void signal_handler(int signal, gpointer data)
 297 {
 298     if (signal == SIGUSR1) {
 299         fprintf(stderr, "Caught signal %d. Restarting.\n", signal);
 300         ob_restart();
 301     } else {
 302         fprintf(stderr, "Caught signal %d. Exiting.\n", signal);
 303         ob_exit();
 304     }
 305 }
 306
 307 static void print_version()
 308 {
 309     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 310     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 311     g_print("This is free software, and you are welcome to redistribute it\n");
 312     g_print("under certain conditions. See the file COPYING for details.\n\n");
 313 }
 314
 315 static void print_help()
 316 {
 317     print_version();
 318     g_print("Syntax: openbox [options]\n\n");
 319     g_print("Options:\n\n");
 320 #ifdef USE_SM
 321     g_print("  --sm-disable        Disable connection to session manager\n");
 322     g_print("  --sm-client-id ID   Specify session management ID\n");
 323     g_print("  --sm-save-file FILE Specify file to load a saved session\n"
 324             "                      from\n");
 325 #endif
 326     g_print("  --replace           Replace the currently running window "
 327             "manager\n");
 328     g_print("  --help              Display this help and exit\n");
 329     g_print("  --version           Display the version and exit\n");
 330     g_print("  --sync              Run in synchronous mode (this is slow and\n"
 331             "                      meant for debugging X routines)\n");
 332     g_print("  --debug             Display debugging output\n");
 333     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 334 }
 335
 336 static void parse_args(int argc, char **argv)
 337 {
 338     int i;
 339
 340     for (i = 1; i < argc; ++i) {
 341         if (!strcmp(argv[i], "--version")) {
 342             print_version();
 343             exit(0);
 344         } else if (!strcmp(argv[i], "--help")) {
 345             print_help();
 346             exit(0);
 347         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
 348             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
 349         } else if (!strcmp(argv[i], "--replace")) {
 350             ob_replace_wm = TRUE;
 351         } else if (!strcmp(argv[i], "--sync")) {
 352             xsync = TRUE;
 353         } else if (!strcmp(argv[i], "--debug")) {
 354             ob_debug_show_output(TRUE);
 355 #ifdef USE_SM
 356         } else if (!strcmp(argv[i], "--sm-client-id")) {
 357             if (i == argc - 1) /* no args left */
 358                 g_printerr(_("--sm-client-id requires an argument\n"));
 359             else
 360                 ob_sm_id = g_strdup(argv[++i]);
 361         } else if (!strcmp(argv[i], "--sm-save-file")) {
 362             if (i == argc - 1) /* no args left */
 363                 g_printerr(_("--sm-save-file requires an argument\n"));
 364             else
 365                 sm_save_file = argv[++i];
 366         } else if (!strcmp(argv[i], "--sm-disable")) {
 367             ob_sm_use = FALSE;
 368 #endif
 369         } else {
 370             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 371             print_help();
 372             exit(1);
 373         }
 374     }
 375 }
 376
 377 void ob_exit_with_error(gchar *msg)
 378 {
 379     g_critical(msg);
 380     session_shutdown();
 381     exit(EXIT_FAILURE);
 382 }
 383
 384 void ob_restart_other(const gchar *path)
 385 {
 386     restart_path = g_strdup(path);
 387     ob_restart();
 388 }
 389
 390 void ob_restart()
 391 {
 392     restart = TRUE;
 393     ob_exit();
 394 }
 395
 396 void ob_exit()
 397 {
 398     ob_main_loop_exit(ob_main_loop);
 399 }
 400
 401 Cursor ob_cursor(ObCursor cursor)
 402 {
 403     g_assert(cursor < OB_NUM_CURSORS);
 404     return cursors[cursor];
 405 }
 406
 407 KeyCode ob_keycode(ObKey key)
 408 {
 409     g_assert(key < OB_NUM_KEYS);
 410     return keys[key];
 411 }
 412
 413 ObState ob_state()
 414 {
 415     return state;
 416 }