Dogcows Code - chaz/openbox/blob - src/openbox.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 #ifdef HAVE_CONFIG_H
   4 # include "../config.h"
   5 #endif
   6
   7 #include "openbox.hh"
   8 #include "client.hh"
   9 #include "screen.hh"
  10 #include "actions.hh"
  11 #include "bindings.hh"
  12 #include "python.hh"
  13 #include "otk/property.hh"
  14 #include "otk/assassin.hh"
  15 #include "otk/property.hh"
  16 #include "otk/util.hh"
  17 #include "otk/rendercolor.hh"
  18
  19 extern "C" {
  20 #include <X11/cursorfont.h>
  21
  22 #ifdef    HAVE_STDIO_H
  23 #  include <stdio.h>
  24 #endif // HAVE_STDIO_H
  25
  26 #ifdef    HAVE_STDLIB_H
  27 #  include <stdlib.h>
  28 #endif // HAVE_STDLIB_H
  29
  30 #ifdef    HAVE_SIGNAL_H
  31 #  include <signal.h>
  32 #endif // HAVE_SIGNAL_H
  33
  34 #ifdef    HAVE_FCNTL_H
  35 #  include <fcntl.h>
  36 #endif // HAVE_FCNTL_H
  37
  38 #ifdef    HAVE_UNISTD_H
  39 #  include <sys/types.h>
  40 #  include <unistd.h>
  41 #endif // HAVE_UNISTD_H
  42
  43 #ifdef    HAVE_SYS_SELECT_H
  44 #  include <sys/select.h>
  45 #endif // HAVE_SYS_SELECT_H
  46
  47 #ifdef    HAVE_SYS_WAIT_H
  48 #  include <sys/wait.h>
  49 #endif // HAVE_SYS_WAIT_H
  50
  51 #include "gettext.h"
  52 #define _(str) gettext(str)
  53 }
  54
  55 #include <algorithm>
  56
  57 namespace ob {
  58
  59 Openbox *openbox = (Openbox *) 0;
  60
  61
  62 void Openbox::signalHandler(int signal)
  63 {
  64   switch (signal) {
  65   case SIGUSR1:
  66     printf("Caught SIGUSR1 signal. Restarting.\n");
  67     openbox->restart();
  68     break;
  69
  70   case SIGCHLD:
  71     wait(NULL);
  72     break;
  73
  74   case SIGHUP:
  75   case SIGINT:
  76   case SIGTERM:
  77   case SIGPIPE:
  78     printf("Caught signal %d. Exiting.\n", signal);
  79     openbox->shutdown();
  80     break;
  81
  82   case SIGFPE:
  83   case SIGSEGV:
  84     printf("Caught signal %d. Aborting and dumping core.\n", signal);
  85     abort();
  86   }
  87 }
  88
  89
  90 Openbox::Openbox(int argc, char **argv)
  91   : otk::EventDispatcher(),
  92     otk::EventHandler(),
  93     _display()
  94 {
  95   struct sigaction action;
  96
  97   _state = State_Starting; // initializing everything
  98
  99   openbox = this;
 100
 101   _displayreq = (char*) 0;
 102   _argv = argv;
 103   _shutdown = false;
 104   _restart = false;
 105   _rcfilepath = otk::expandTilde("~/.openbox/rc3");
 106   _scriptfilepath = otk::expandTilde("~/.openbox/user.py");
 107   _focused_client = 0;
 108   _sync = false;
 109
 110   parseCommandLine(argc, argv);
 111
 112   XSynchronize(**otk::display, _sync);
 113
 114   // set up the signal handler
 115   action.sa_handler = Openbox::signalHandler;
 116   action.sa_mask = sigset_t();
 117   action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
 118   sigaction(SIGUSR1, &action, (struct sigaction *) 0);
 119   sigaction(SIGPIPE, &action, (struct sigaction *) 0);
 120   sigaction(SIGSEGV, &action, (struct sigaction *) 0);
 121   sigaction(SIGFPE, &action, (struct sigaction *) 0);
 122   sigaction(SIGTERM, &action, (struct sigaction *) 0);
 123   sigaction(SIGINT, &action, (struct sigaction *) 0);
 124   sigaction(SIGHUP, &action, (struct sigaction *) 0);
 125   sigaction(SIGCHLD, &action, (struct sigaction *) 0);
 126
 127   // anything that died while we were restarting won't give us a SIGCHLD
 128   while (waitpid(-1, NULL, WNOHANG) > 0);
 129
 130   otk::RenderColor::initialize();
 131   otk::Timer::initialize();
 132   otk::Property::initialize();
 133   _actions = new Actions();
 134   _bindings = new Bindings();
 135
 136   setMasterHandler(_actions); // set as the master event handler
 137
 138   // create the mouse cursors we'll use
 139   _cursors.session = XCreateFontCursor(**otk::display, XC_left_ptr);
 140   _cursors.move = XCreateFontCursor(**otk::display, XC_fleur);
 141   _cursors.ll_angle = XCreateFontCursor(**otk::display, XC_ll_angle);
 142   _cursors.lr_angle = XCreateFontCursor(**otk::display, XC_lr_angle);
 143   _cursors.ul_angle = XCreateFontCursor(**otk::display, XC_ul_angle);
 144   _cursors.ur_angle = XCreateFontCursor(**otk::display, XC_ur_angle);
 145
 146   // initialize scripting
 147   python_init(argv[0]);
 148
 149   // load config values
 150   python_exec(SCRIPTDIR"/config.py"); // load openbox config values
 151   // run all of the python scripts
 152   python_exec(SCRIPTDIR"/builtins.py"); // builtin callbacks
 153   // run the user's script or the system defaults if that fails
 154   if (!python_exec(_scriptfilepath.c_str()))
 155     python_exec(SCRIPTDIR"/defaults.py"); // system default bahaviors
 156
 157   // initialize all the screens
 158   Screen *screen;
 159   int i = _single ? DefaultScreen(**otk::display) : 0;
 160   int max = _single ? i + 1 : ScreenCount(**otk::display);
 161   for (; i < max; ++i) {
 162     screen = new Screen(i);
 163     if (screen->managed())
 164       _screens.push_back(screen);
 165     else
 166       delete screen;
 167   }
 168
 169   if (_screens.empty()) {
 170     printf(_("No screens were found without a window manager. Exiting.\n"));
 171     ::exit(1);
 172   }
 173
 174   ScreenList::iterator it, end = _screens.end();
 175   for (it = _screens.begin(); it != end; ++it) {
 176     (*it)->manageExisting();
 177   }
 178
 179   // grab any keys set up before the screens existed
 180   _bindings->grabKeys(true);
 181
 182   // set up input focus
 183   _focused_screen = _screens[0];
 184   setFocusedClient(0);
 185
 186   _state = State_Normal; // done starting
 187 }
 188
 189
 190 Openbox::~Openbox()
 191 {
 192   _state = State_Exiting; // time to kill everything
 193
 194   int first_screen = _screens.front()->number();
 195
 196   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 197
 198   delete _bindings;
 199   delete _actions;
 200
 201   python_destroy();
 202
 203   XSetInputFocus(**otk::display, PointerRoot, RevertToNone,
 204                  CurrentTime);
 205   XSync(**otk::display, false);
 206
 207   // this tends to block.. i honestly am not sure why. causing an x error in
 208   // the shutdown process unblocks it. blackbox simply did a ::exit(0), so
 209   // all im gunna do is the same.
 210   //otk::display->destroy();
 211
 212   otk::Timer::destroy();
 213   otk::RenderColor::destroy();
 214
 215   if (_restart) {
 216     if (!_restart_prog.empty()) {
 217       otk::putenv(otk::display->screenInfo(first_screen)->displayString());
 218       execl("/bin/sh", "/bin/sh", "-c", _restart_prog.c_str(), NULL);
 219       perror(_restart_prog.c_str());
 220     }
 221
 222     // fall back in case the above execlp doesn't work
 223     execvp(_argv[0], _argv);
 224     execvp(otk::basename(_argv[0]).c_str(), _argv);
 225   }
 226 }
 227
 228
 229 void Openbox::parseCommandLine(int argc, char **argv)
 230 {
 231   bool err = false;
 232
 233   for (int i = 1; i < argc; ++i) {
 234     std::string arg(argv[i]);
 235
 236     if (arg == "-display") {
 237       if (++i >= argc)
 238         err = true;
 239       else
 240         _displayreq = argv[i];
 241     } else if (arg == "-rc") {
 242       if (++i >= argc)
 243         err = true;
 244       else
 245         _rcfilepath = argv[i];
 246     } else if (arg == "-menu") {
 247       if (++i >= argc)
 248         err = true;
 249       else
 250         _menufilepath = argv[i];
 251     } else if (arg == "-script") {
 252       if (++i >= argc)
 253         err = true;
 254       else
 255         _scriptfilepath = argv[i];
 256     } else if (arg == "-sync") {
 257       _sync = true;
 258     } else if (arg == "-single") {
 259       _single = true;
 260     } else if (arg == "-version") {
 261       showVersion();
 262       ::exit(0);
 263     } else if (arg == "-help") {
 264       showHelp();
 265       ::exit(0);
 266     } else
 267       err = true;
 268
 269     if (err) {
 270       showHelp();
 271       exit(1);
 272     }
 273   }
 274 }
 275
 276
 277 void Openbox::showVersion()
 278 {
 279   printf(_("Openbox - version %s\n"), VERSION);
 280   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 281 }
 282
 283
 284 void Openbox::showHelp()
 285 {
 286   showVersion(); // show the version string and copyright
 287
 288   // print program usage and command line options
 289   printf(_("Usage: %s [OPTIONS...]\n\
 290   Options:\n\
 291   -display <string>  use display connection.\n\
 292   -single            run on a single screen (default is to run every one).\n\
 293   -rc <string>       use alternate resource file.\n\
 294   -menu <string>     use alternate menu file.\n\
 295   -script <string>   use alternate startup script file.\n\
 296   -sync              run in synchronous mode (for debugging).\n\
 297   -version           display version and exit.\n\
 298   -help              display this help text and exit.\n\n"), _argv[0]);
 299
 300   printf(_("Compile time options:\n\
 301   Debugging: %s\n\
 302   Shape:     %s\n\
 303   Xinerama:  %s\n\
 304   Xkb:       %s\n"),
 305 #ifdef    DEBUG
 306          _("yes"),
 307 #else // !DEBUG
 308          _("no"),
 309 #endif // DEBUG
 310
 311 #ifdef    SHAPE
 312          _("yes"),
 313 #else // !SHAPE
 314          _("no"),
 315 #endif // SHAPE
 316
 317 #ifdef    XINERAMA
 318          _("yes"),
 319 #else // !XINERAMA
 320          _("no"),
 321 #endif // XINERAMA
 322
 323 #ifdef    XKB
 324          _("yes")
 325 #else // !XKB
 326          _("no")
 327 #endif // XKB
 328     );
 329 }
 330
 331
 332 void Openbox::eventLoop()
 333 {
 334   while (true) {
 335     dispatchEvents(); // from otk::EventDispatcher
 336     XFlush(**otk::display); // flush here before we go wait for timers
 337     // don't wait if we're to shutdown
 338     if (_shutdown) break;
 339     otk::Timer::dispatchTimers(!_sync); // wait if not in sync mode
 340   }
 341 }
 342
 343
 344 void Openbox::addClient(Window window, Client *client)
 345 {
 346   _clients[window] = client;
 347 }
 348
 349
 350 void Openbox::removeClient(Window window)
 351 {
 352   _clients.erase(window);
 353 }
 354
 355
 356 Client *Openbox::findClient(Window window)
 357 {
 358   /*
 359     NOTE: we dont use _clients[] to find the value because that will insert
 360     a new null into the hash, which really sucks when we want to clean up the
 361     hash at shutdown!
 362   */
 363   ClientMap::iterator it = _clients.find(window);
 364   if (it != _clients.end())
 365     return it->second;
 366   else
 367     return (Client*) 0;
 368 }
 369
 370
 371 void Openbox::setFocusedClient(Client *c)
 372 {
 373   _focused_client = c;
 374   if (c) {
 375     _focused_screen = _screens[c->screen()];
 376   } else {
 377     assert(_focused_screen);
 378     XSetInputFocus(**otk::display, _focused_screen->focuswindow(),
 379                    RevertToNone, CurrentTime);
 380   }
 381   // set the NET_ACTIVE_WINDOW hint for all screens
 382   ScreenList::iterator it, end = _screens.end();
 383   for (it = _screens.begin(); it != end; ++it) {
 384     int num = (*it)->number();
 385     Window root = otk::display->screenInfo(num)->rootWindow();
 386     otk::Property::set(root, otk::Property::atoms.net_active_window,
 387                        otk::Property::atoms.window,
 388                        (c && _focused_screen == *it) ? c->window() : None);
 389   }
 390
 391   // call the python Focus callbacks
 392   EventData data(_focused_screen->number(), c, EventFocus, 0);
 393   _bindings->fireEvent(&data);
 394 }
 395
 396 void Openbox::execute(int screen, const std::string &bin)
 397 {
 398   if (screen >= ScreenCount(**otk::display))
 399     screen = 0;
 400   otk::bexec(bin, otk::display->screenInfo(screen)->displayString());
 401 }
 402
 403 }
 404