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

   1 #include "openbox.h"
   2 #include "event.h"
   3 #include "menu.h"
   4 #include "client.h"
   5 #include "dispatch.h"
   6 #include "xerror.h"
   7 #include "prop.h"
   8 #include "screen.h"
   9 #include "focus.h"
  10 #include "moveresize.h"
  11 #include "frame.h"
  12 #include "extensions.h"
  13 #include "parse.h"
  14 #include "grab.h"
  15 #include "plugin.h"
  16 #include "timer.h"
  17 #include "group.h"
  18 #include "config.h"
  19 #include "gettext.h"
  20 #include "render/render.h"
  21 #include "render/font.h"
  22 #include "render/theme.h"
  23
  24 #ifdef HAVE_FCNTL_H
  25 #  include <fcntl.h>
  26 #endif
  27 #ifdef HAVE_SIGNAL_H
  28 #  include <signal.h>
  29 #endif
  30 #ifdef HAVE_STDLIB_H
  31 #  include <stdlib.h>
  32 #endif
  33 #ifdef HAVE_SYS_WAIT_H
  34 #  include <sys/types.h>
  35 #  include <sys/wait.h>
  36 #endif
  37 #ifdef HAVE_LOCALE_H
  38 #  include <locale.h>
  39 #endif
  40 #ifdef HAVE_UNISTD_H
  41 #  include <unistd.h>
  42 #endif
  43 #ifdef HAVE_SYS_STAT_H
  44 #  include <sys/stat.h>
  45 #  include <sys/types.h>
  46 #endif
  47
  48 #include <X11/cursorfont.h>
  49
  50 Display *ob_display  = NULL;
  51 int      ob_screen;
  52 Window   ob_root;
  53 State    ob_state;
  54 gboolean ob_shutdown = FALSE;
  55 gboolean ob_restart  = FALSE;
  56 char    *ob_restart_path = NULL;
  57 gboolean ob_remote   = TRUE;
  58 gboolean ob_sync     = FALSE;
  59 Cursors  ob_cursors;
  60 char    *ob_rc_path  = NULL;
  61
  62 void signal_handler(const ObEvent *e, void *data);
  63 void parse_args(int argc, char **argv);
  64
  65 int main(int argc, char **argv)
  66 {
  67     struct sigaction action;
  68     sigset_t sigset;
  69     char *path;
  70     char *theme;
  71
  72     ob_state = State_Starting;
  73
  74     /* initialize the locale */
  75     if (!setlocale(LC_ALL, ""))
  76         g_warning("Couldn't set locale from environment.\n");
  77     bindtextdomain(PACKAGE_NAME, LOCALEDIR);
  78     bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
  79     textdomain(PACKAGE_NAME);
  80
  81     /* start our event dispatcher and register for signals */
  82     dispatch_startup();
  83     dispatch_register(Event_Signal, signal_handler, NULL);
  84
  85     /* set up signal handler */
  86     sigemptyset(&sigset);
  87     action.sa_handler = dispatch_signal;
  88     action.sa_mask = sigset;
  89     action.sa_flags = SA_NOCLDSTOP;
  90     sigaction(SIGUSR1, &action, (struct sigaction *) NULL);
  91     sigaction(SIGPIPE, &action, (struct sigaction *) NULL);
  92     sigaction(SIGSEGV, &action, (struct sigaction *) NULL);
  93     sigaction(SIGFPE, &action, (struct sigaction *) NULL);
  94     sigaction(SIGTERM, &action, (struct sigaction *) NULL);
  95     sigaction(SIGINT, &action, (struct sigaction *) NULL);
  96     sigaction(SIGHUP, &action, (struct sigaction *) NULL);
  97     sigaction(SIGCHLD, &action, (struct sigaction *) NULL);
  98
  99     /* anything that died while we were restarting won't give us a SIGCHLD */
 100     while (waitpid(-1, NULL, WNOHANG) > 0);
 101
 102     /* create the ~/.openbox dir */
 103     path = g_build_filename(g_get_home_dir(), ".openbox", NULL);
 104     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 105                  S_IROTH | S_IWOTH | S_IXOTH));
 106     g_free(path);
 107     /* create the ~/.openbox/themes dir */
 108     path = g_build_filename(g_get_home_dir(), ".openbox", "themes", NULL);
 109     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
 110                  S_IROTH | S_IWOTH | S_IXOTH));
 111     g_free(path);
 112
 113     /* parse out command line args */
 114     parse_args(argc, argv);
 115
 116     ob_display = XOpenDisplay(NULL);
 117     if (ob_display == NULL) {
 118         /* print a message and exit */
 119         g_critical("Failed to open the display.");
 120         exit(1);
 121     }
 122     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1) {
 123         /* print a message and exit */
 124         g_critical("Failed to set display as close-on-exec.");
 125         exit(1);
 126     }
 127
 128     ob_screen = DefaultScreen(ob_display);
 129     ob_root = RootWindow(ob_display, ob_screen);
 130
 131     /* XXX fork self onto other screens */
 132
 133     XSynchronize(ob_display, ob_sync);
 134
 135     /* check for locale support */
 136     if (!XSupportsLocale())
 137         g_warning("X server does not support locale.");
 138     if (!XSetLocaleModifiers(""))
 139         g_warning("Cannot set locale modifiers for the X server.");
 140
 141     /* set our error handler */
 142     XSetErrorHandler(xerror_handler);
 143
 144     /* set the DISPLAY environment variable for any lauched children, to the
 145        display we're using, so they open in the right place. */
 146     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 147
 148     ob_cursors.ptr = XCreateFontCursor(ob_display, XC_left_ptr);
 149     ob_cursors.move = XCreateFontCursor(ob_display, XC_fleur);
 150     ob_cursors.tl = XCreateFontCursor(ob_display, XC_top_left_corner);
 151     ob_cursors.tr = XCreateFontCursor(ob_display, XC_top_right_corner);
 152     ob_cursors.bl = XCreateFontCursor(ob_display, XC_bottom_left_corner);
 153     ob_cursors.br = XCreateFontCursor(ob_display, XC_bottom_right_corner);
 154     ob_cursors.t = XCreateFontCursor(ob_display, XC_top_side);
 155     ob_cursors.r = XCreateFontCursor(ob_display, XC_right_side);
 156     ob_cursors.b = XCreateFontCursor(ob_display, XC_bottom_side);
 157     ob_cursors.l = XCreateFontCursor(ob_display, XC_left_side);
 158
 159     prop_startup(); /* get atoms values for the display */
 160     extensions_query_all(); /* find which extensions are present */
 161
 162     if (screen_annex()) { /* it will be ours! */
 163         /* startup the parsing so everything can register sections of the rc */
 164         parse_startup();
 165
 166         /* anything that is going to read data from the rc file needs to be
 167            in this group */
 168         timer_startup();
 169         render_startup();
 170         font_startup();
 171         theme_startup();
 172         event_startup();
 173         moveresize_startup();
 174         grab_startup();
 175         plugin_startup();
 176         /* load the plugins specified in the pluginrc */
 177         plugin_loadall();
 178
 179         /* set up the kernel config shit */
 180         config_startup();
 181         /* parse/load user options */
 182         parse_rc();
 183         /* we're done with parsing now, kill it */
 184         parse_shutdown();
 185
 186         /* load the theme specified in the rc file */
 187         theme = theme_load(config_theme);
 188         g_free(theme);
 189         if (!theme) return 1;
 190
 191         menu_startup();
 192         frame_startup();
 193         stacking_startup();
 194         focus_startup();
 195         screen_startup();
 196         group_startup();
 197         client_startup();
 198
 199         /* call startup for all the plugins */
 200         plugin_startall();
 201
 202         /* get all the existing windows */
 203         client_manage_all();
 204
 205         ob_state = State_Running;
 206         while (!ob_shutdown)
 207             event_loop();
 208         ob_state = State_Exiting;
 209
 210         client_unmanage_all();
 211
 212         plugin_shutdown(); /* calls all the plugins' shutdown functions */
 213         client_shutdown();
 214         group_shutdown();
 215         screen_shutdown();
 216         focus_shutdown();
 217         stacking_shutdown();
 218         frame_shutdown();
 219         menu_shutdown();
 220         grab_shutdown();
 221         event_shutdown();
 222         theme_shutdown();
 223         render_shutdown();
 224         timer_shutdown();
 225         config_shutdown();
 226     }
 227
 228     dispatch_shutdown();
 229
 230     XCloseDisplay(ob_display);
 231
 232     if (ob_restart) {
 233         if (ob_restart_path != NULL) {
 234             int argcp;
 235             char **argvp;
 236             GError *err = NULL;
 237
 238             /* run other shit */
 239             if (g_shell_parse_argv(ob_restart_path, &argcp, &argvp, &err)) {
 240                 execvp(argvp[0], argvp);
 241                 g_strfreev(argvp);
 242             } else {
 243                 g_warning("failed to execute '%s': %s", ob_restart_path,
 244                           err->message);
 245             }
 246         }
 247
 248         /* re-run me */
 249         execvp(argv[0], argv); /* try how we were run */
 250         execlp(BINARY, BINARY, NULL); /* try this as a last resort */
 251     }
 252
 253     return 0;
 254 }
 255
 256 void signal_handler(const ObEvent *e, void *data)
 257 {
 258     int s;
 259
 260     s = e->data.s.signal;
 261     switch (s) {
 262     case SIGUSR1:
 263         g_message("Caught SIGUSR1 signal. Restarting.");
 264         ob_shutdown = ob_restart = TRUE;
 265         break;
 266
 267     case SIGCHLD:
 268         wait(NULL);
 269         break;
 270
 271     case SIGHUP:
 272     case SIGINT:
 273     case SIGTERM:
 274     case SIGPIPE:
 275         g_message("Caught signal %d. Exiting.", s);
 276         ob_shutdown = TRUE;
 277         break;
 278
 279     case SIGFPE:
 280     case SIGSEGV:
 281         g_error("Caught signal %d. Aborting and dumping core.", s);
 282     }
 283 }
 284
 285 void print_version()
 286 {
 287     g_print("Openbox %s\n\n", PACKAGE_VERSION);
 288     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
 289     g_print("This is free software, and you are welcome to redistribute it\n");
 290     g_print("under certain conditions. See the file COPYING for details.\n\n");
 291 }
 292
 293 void print_help()
 294 {
 295     print_version();
 296     g_print("Syntax: %s [options]\n\n", BINARY);
 297     g_print("Options:\n\n");
 298     g_print("  -rc PATH     Specify the path to the rc file to use\n");
 299     g_print("  -help        Display this help and exit\n");
 300     g_print("  -version     Display the version and exit\n");
 301     g_print("  -sync        Run in synchronous mode (this is slow and meant\n"
 302             "               for debugging X routines)\n");
 303     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
 304 }
 305
 306 void parse_args(int argc, char **argv)
 307 {
 308     int i;
 309
 310     for (i = 1; i < argc; ++i) {
 311         if (!strcmp(argv[i], "-version")) {
 312             print_version();
 313             exit(0);
 314         } else if (!strcmp(argv[i], "-help")) {
 315             print_help();
 316             exit(0);
 317         } else if (!strcmp(argv[i], "-sync")) {
 318             ob_sync = TRUE;
 319         } else if (!strcmp(argv[i], "-rc")) {
 320             if (i == argc - 1) /* no args left */
 321                 g_printerr("-rc requires an argument\n");
 322             else
 323                 ob_rc_path = argv[++i];
 324         } else {
 325             g_printerr("Invalid option: '%s'\n\n", argv[i]);
 326             print_help();
 327             exit(1);
 328         }
 329     }
 330 }
 331
 332 gboolean ob_pointer_pos(int *x, int *y)
 333 {
 334     Window w;
 335     int i;
 336     guint u;
 337
 338     return !!XQueryPointer(ob_display, ob_root, &w, &w, x, y, &i, &i, &u);
 339 }