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