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 RrInstance *ob_rr_inst = NULL;
  52 RrTheme    *ob_rr_theme = NULL;
  53 Display    *ob_display = NULL;
  54 int         ob_screen;
  55 Window      ob_root;
  56 State       ob_state;
  57 gboolean    ob_shutdown = FALSE;
  58 gboolean    ob_restart  = FALSE;
  59 char       *ob_restart_path = NULL;
  60 gboolean    ob_remote   = TRUE;
  61 gboolean    ob_sync     = FALSE;
  62 Cursors     ob_cursors;
  63 char       *ob_rc_path  = NULL;
  64
  65 static void signal_handler(const ObEvent *e, void *data);
  66 static void parse_args(int argc, char **argv);
  67 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
  68                              Bool shutdown, int interact_style, Bool fast);
  69 static void sm_die(SmcConn conn, SmPointer data);
  70 static void sm_save_complete(SmcConn conn, SmPointer data);
  71 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data);
  72 static void exit_with_error(gchar *msg);
  73
  74 int main(int argc, char **argv)
  75 {
  76     struct sigaction action;
  77     sigset_t sigset;
  78     char *path;
  79     xmlDocPtr doc;
  80     xmlNodePtr node;
  81     SmcCallbacks cb;
  82     char sm_err[SM_ERR_LEN];
  83     char *sm_id;
  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, NULL, &sm_id, SM_ERR_LEN, sm_err);
 149     if (ob_sm_conn == NULL)
 150         g_warning("Failed to connect to session manager: %s", sm_err);
 151     else
 152         g_message("Connected to session manager with id %s", sm_id);
 153     g_free (sm_id);
 154
 155 #ifdef USE_LIBSN
 156     ob_sn_display = sn_display_new(ob_display, NULL, NULL);
 157 #endif
 158
 159     ob_screen = DefaultScreen(ob_display);
 160     ob_root = RootWindow(ob_display, ob_screen);
 161
 162     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
 163     if (ob_rr_inst == NULL)
 164         exit_with_error("Failed to initialize the render library.");
 165
 166     /* XXX fork self onto other screens */
 167
 168     XSynchronize(ob_display, ob_sync);
 169
 170     /* check for locale support */
 171     if (!XSupportsLocale())
 172         g_warning("X server does not support locale.");
 173     if (!XSetLocaleModifiers(""))
 174         g_warning("Cannot set locale modifiers for the X server.");
 175
 176     /* set our error handler */
 177     XSetErrorHandler(xerror_handler);
 178
 179     /* set the DISPLAY environment variable for any lauched children, to the
 180        display we're using, so they open in the right place. */
 181     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 182
 183     ob_cursors.ptr = XCreateFontCursor(ob_display, XC_left_ptr);
 184     ob_cursors.busy = XCreateFontCursor(ob_display, XC_watch);
 185     ob_cursors.move = XCreateFontCursor(ob_display, XC_fleur);
 186     ob_cursors.tl = XCreateFontCursor(ob_display, XC_top_left_corner);
 187     ob_cursors.tr = XCreateFontCursor(ob_display, XC_top_right_corner);
 188     ob_cursors.bl = XCreateFontCursor(ob_display, XC_bottom_left_corner);
 189     ob_cursors.br = XCreateFontCursor(ob_display, XC_bottom_right_corner);
 190     ob_cursors.t = XCreateFontCursor(ob_display, XC_top_side);
 191     ob_cursors.r = XCreateFontCursor(ob_display, XC_right_side);
 192     ob_cursors.b = XCreateFontCursor(ob_display, XC_bottom_side);
 193     ob_cursors.l = XCreateFontCursor(ob_display, XC_left_side);
 194
 195     prop_startup(); /* get atoms values for the display */
 196     extensions_query_all(); /* find which extensions are present */
 197
 198     /* save stuff that we can use to restore state */
 199     startup_save();
 200
 201     if (screen_annex()) { /* it will be ours! */
 202         /* startup the parsing so everything can register sections of the rc */
 203         parse_startup();
 204
 205         /* anything that is going to read data from the rc file needs to be
 206            in this group */
 207         timer_startup();
 208         event_startup();
 209         grab_startup();
 210         plugin_startup();
 211         /* load the plugins specified in the pluginrc */
 212         plugin_loadall();
 213
 214         /* set up the kernel config shit */
 215         config_startup();
 216         /* parse/load user options */
 217         if (parse_load_rc(&doc, &node))
 218             parse_tree(doc, node->xmlChildrenNode, NULL);
 219         /* we're done with parsing now, kill it */
 220         parse_shutdown();
 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             exit_with_error("Unable to load a theme.");
 226
 227         window_startup();
 228         menu_startup();
 229         frame_startup();
 230         moveresize_startup();
 231         focus_startup();
 232         screen_startup();
 233         group_startup();
 234         client_startup();
 235         dock_startup();
 236
 237         /* call startup for all the plugins */
 238         plugin_startall();
 239
 240         /* get all the existing windows */
 241         client_manage_all();
 242
 243         ob_state = State_Running;
 244         while (!ob_shutdown)
 245             event_loop();
 246         ob_state = State_Exiting;
 247
 248         dock_remove_all();
 249         client_unmanage_all();
 250
 251         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 252         dock_shutdown();
 253         client_shutdown();
 254         group_shutdown();
 255         screen_shutdown();
 256         focus_shutdown();
 257         moveresize_shutdown();
 258         frame_shutdown();
 259         menu_shutdown();
 260         window_shutdown();
 261         grab_shutdown();
 262         event_shutdown();
 263         timer_shutdown();
 264         config_shutdown();
 265     }
 266
 267     dispatch_shutdown();
 268
 269     RrThemeFree(ob_rr_theme);
 270     RrInstanceFree(ob_rr_inst);
 271
 272     if (ob_sm_conn)
 273         SmcCloseConnection(ob_sm_conn, 0, NULL);
 274     XCloseDisplay(ob_display);
 275
 276     if (ob_restart) {
 277         if (ob_restart_path != NULL) {
 278             int argcp;
 279             char **argvp;
 280             GError *err = NULL;
 281
 282             /* run other shit */
 283             if (g_shell_parse_argv(ob_restart_path, &argcp, &argvp, &err)) {
 284                 execvp(argvp[0], argvp);
 285                 g_strfreev(argvp);
 286             } else {
 287                 g_warning("failed to execute '%s': %s", ob_restart_path,
 288                           err->message);
 289             }
 290         }
 291
 292         /* re-run me */
 293         execvp(argv[0], argv); /* try how we were run */
 294         execlp(BINARY, BINARY, NULL); /* try this as a last resort */
 295     }
 296
 297     return 0;
 298 }
 299
 300 static void signal_handler(const ObEvent *e, void *data)
 301 {
 302     int s;
 303
 304     s = e->data.s.signal;
 305     switch (s) {
 306     case SIGUSR1:
 307         g_message("Caught SIGUSR1 signal. Restarting.");
 308         ob_shutdown = ob_restart = TRUE;
 309         break;
 310
 311     case SIGHUP:
 312     case SIGINT:
 313     case SIGTERM:
 314     case SIGPIPE:
 315         g_message("Caught signal %d. Exiting.", s);
 316         ob_shutdown = TRUE;
 317         break;
 318
 319     case SIGFPE:
 320     case SIGSEGV:
 321         g_message("Caught signal %d. Aborting and dumping core.", s);
 322         abort();
 323     }
 324 }
 325
 326 static void print_version()
 327 {
 328     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 329     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 330     g_print("This is free software, and you are welcome to redistribute it\n");
 331     g_print("under certain conditions. See the file COPYING for details.\n\n");
 332 }
 333
 334 static void print_help()
 335 {
 336     print_version();
 337     g_print("Syntax: %s [options]\n\n", BINARY);
 338     g_print("Options:\n\n");
 339     g_print("  -rc PATH     Specify the path to the rc file to use\n");
 340     g_print("  -help        Display this help and exit\n");
 341     g_print("  -version     Display the version and exit\n");
 342     g_print("  -sync        Run in synchronous mode (this is slow and meant\n"
 343             "               for debugging X routines)\n");
 344     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 345 }
 346
 347 static void parse_args(int argc, char **argv)
 348 {
 349     int i;
 350
 351     for (i = 1; i < argc; ++i) {
 352         if (!strcmp(argv[i], "-version")) {
 353             print_version();
 354             exit(0);
 355         } else if (!strcmp(argv[i], "-help")) {
 356             print_help();
 357             exit(0);
 358         } else if (!strcmp(argv[i], "-sync")) {
 359             ob_sync = TRUE;
 360         } else if (!strcmp(argv[i], "-rc")) {
 361             if (i == argc - 1) /* no args left */
 362                 g_printerr("-rc requires an argument\n");
 363             else
 364                 ob_rc_path = argv[++i];
 365         } else {
 366             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 367             print_help();
 368             exit(1);
 369         }
 370     }
 371 }
 372
 373 gboolean ob_pointer_pos(int *x, int *y)
 374 {
 375     Window w;
 376     int i;
 377     guint u;
 378
 379     return !!XQueryPointer(ob_display, ob_root, &w, &w, x, y, &i, &i, &u);
 380 }
 381
 382 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
 383                              Bool shutdown, int interact_style, Bool fast)
 384 {
 385     g_message("got SAVE YOURSELF from session manager");
 386     SmcSaveYourselfDone(conn, TRUE);
 387 }
 388
 389 static void sm_die(SmcConn conn, SmPointer data)
 390 {
 391     ob_shutdown = TRUE;
 392     g_message("got DIE from session manager");
 393 }
 394
 395 static void sm_save_complete(SmcConn conn, SmPointer data)
 396 {
 397     g_message("got SAVE COMPLETE from session manager");
 398 }
 399
 400 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data)
 401 {
 402     g_message("got SHUTDOWN CANCELLED from session manager");
 403 }
 404
 405 static void exit_with_error(gchar *msg)
 406 {
 407     g_critical(msg);
 408     if (ob_sm_conn)
 409         SmcCloseConnection(ob_sm_conn, 1, &msg);
 410     exit(EXIT_FAILURE);
 411 }