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

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