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