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 "../version.h"
   8 #include "openbox.hh"
   9 #include "client.hh"
  10 #include "screen.hh"
  11 #include "actions.hh"
  12 #include "bindings.hh"
  13 #include "python.hh"
  14 #include "otk/property.hh"
  15 #include "otk/display.hh"
  16 #include "otk/assassin.hh"
  17 #include "otk/util.hh" // TEMPORARY
  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 #include "gettext.h"
  48 #define _(str) gettext(str)
  49 }
  50
  51 #include <algorithm>
  52
  53 namespace ob {
  54
  55 Openbox *Openbox::instance  = (Openbox *) 0;
  56
  57
  58 void Openbox::signalHandler(int signal)
  59 {
  60   switch (signal) {
  61   case SIGUSR1:
  62     printf("Caught SIGUSR1 signal. Restarting.\n");
  63     instance->restart();
  64     break;
  65
  66   case SIGHUP:
  67   case SIGINT:
  68   case SIGTERM:
  69   case SIGPIPE:
  70     printf("Caught signal %d. Exiting.\n", signal);
  71     instance->shutdown();
  72     break;
  73
  74   case SIGFPE:
  75   case SIGSEGV:
  76     printf("Caught signal %d. Aborting and dumping core.\n", signal);
  77     abort();
  78   }
  79 }
  80
  81
  82 Openbox::Openbox(int argc, char **argv)
  83   : otk::OtkEventDispatcher(),
  84     otk::OtkEventHandler()
  85 {
  86   struct sigaction action;
  87
  88   _state = State_Starting; // initializing everything
  89
  90   Openbox::instance = this;
  91
  92   _displayreq = (char*) 0;
  93   _argv = argv;
  94   _shutdown = false;
  95   _restart = false;
  96   _rcfilepath = otk::expandTilde("~/.openbox/rc3");
  97   _scriptfilepath = otk::expandTilde("~/.openbox/user.py");
  98   _focused_client = 0;
  99   _sync = false;
 100
 101   parseCommandLine(argc, argv);
 102
 103   // open the X display (and gets some info about it, and its screens)
 104   otk::OBDisplay::initialize(_displayreq);
 105   assert(otk::OBDisplay::display);
 106
 107   XSynchronize(otk::OBDisplay::display, _sync);
 108
 109   // set up the signal handler
 110   action.sa_handler = Openbox::signalHandler;
 111   action.sa_mask = sigset_t();
 112   action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
 113   sigaction(SIGUSR1, &action, (struct sigaction *) 0);
 114   sigaction(SIGPIPE, &action, (struct sigaction *) 0);
 115   sigaction(SIGSEGV, &action, (struct sigaction *) 0);
 116   sigaction(SIGFPE, &action, (struct sigaction *) 0);
 117   sigaction(SIGTERM, &action, (struct sigaction *) 0);
 118   sigaction(SIGINT, &action, (struct sigaction *) 0);
 119   sigaction(SIGHUP, &action, (struct sigaction *) 0);
 120
 121   _property = new otk::OBProperty();
 122   _actions = new OBActions();
 123   _bindings = new OBBindings();
 124
 125   setMasterHandler(_actions); // set as the master event handler
 126
 127   // create the mouse cursors we'll use
 128   _cursors.session = XCreateFontCursor(otk::OBDisplay::display, XC_left_ptr);
 129   _cursors.move = XCreateFontCursor(otk::OBDisplay::display, XC_fleur);
 130   _cursors.ll_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ll_angle);
 131   _cursors.lr_angle = XCreateFontCursor(otk::OBDisplay::display, XC_lr_angle);
 132   _cursors.ul_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ul_angle);
 133   _cursors.ur_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ur_angle);
 134
 135   // initialize scripting
 136   python_init(argv[0]);
 137
 138   // load config values
 139   python_exec(SCRIPTDIR"/config.py"); // load openbox config values
 140   // run all of the python scripts
 141   python_exec(SCRIPTDIR"/builtins.py"); // builtin callbacks
 142   // run the user's script or the system defaults if that fails
 143   if (!python_exec(_scriptfilepath.c_str()))
 144     python_exec(SCRIPTDIR"/defaults.py"); // system default bahaviors
 145
 146   // initialize all the screens
 147   OBScreen *screen;
 148   int i = _single ? DefaultScreen(otk::OBDisplay::display) : 0;
 149   int max = _single ? i + 1 : ScreenCount(otk::OBDisplay::display);
 150   for (; i < max; ++i) {
 151     screen = new OBScreen(i);
 152     if (screen->managed())
 153       _screens.push_back(screen);
 154     else
 155       delete screen;
 156   }
 157
 158   if (_screens.empty()) {
 159     printf(_("No screens were found without a window manager. Exiting.\n"));
 160     ::exit(1);
 161   }
 162
 163   ScreenList::iterator it, end = _screens.end();
 164   for (it = _screens.begin(); it != end; ++it) {
 165     (*it)->manageExisting();
 166   }
 167
 168   // grab any keys set up before the screens existed
 169   _bindings->grabKeys(true);
 170
 171   // set up input focus
 172   _focused_screen = _screens[0];
 173   setFocusedClient(0);
 174
 175   _state = State_Normal; // done starting
 176 }
 177
 178
 179 Openbox::~Openbox()
 180 {
 181   _state = State_Exiting; // time to kill everything
 182
 183   int first_screen = _screens.front()->number();
 184
 185   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 186
 187   delete _bindings;
 188   delete _actions;
 189   delete _property;
 190
 191   python_destroy();
 192
 193   XSetInputFocus(otk::OBDisplay::display, PointerRoot, RevertToNone,
 194                  CurrentTime);
 195   XSync(otk::OBDisplay::display, false);
 196
 197   // this tends to block.. i honestly am not sure why. causing an x error in
 198   // the shutdown process unblocks it. blackbox simply did a ::exit(0), so
 199   // all im gunna do is the same.
 200   //otk::OBDisplay::destroy();
 201
 202   if (_restart) {
 203     if (!_restart_prog.empty()) {
 204       const std::string &dstr =
 205         otk::OBDisplay::screenInfo(first_screen)->displayString();
 206       putenv(const_cast<char *>(dstr.c_str()));
 207       execlp(_restart_prog.c_str(), _restart_prog.c_str(), NULL);
 208       perror(_restart_prog.c_str());
 209     }
 210
 211     // fall back in case the above execlp doesn't work
 212     execvp(_argv[0], _argv);
 213     execvp(otk::basename(_argv[0]).c_str(), _argv);
 214   }
 215 }
 216
 217
 218 void Openbox::parseCommandLine(int argc, char **argv)
 219 {
 220   bool err = false;
 221
 222   for (int i = 1; i < argc; ++i) {
 223     std::string arg(argv[i]);
 224
 225     if (arg == "-display") {
 226       if (++i >= argc)
 227         err = true;
 228       else
 229         _displayreq = argv[i];
 230     } else if (arg == "-rc") {
 231       if (++i >= argc)
 232         err = true;
 233       else
 234         _rcfilepath = argv[i];
 235     } else if (arg == "-menu") {
 236       if (++i >= argc)
 237         err = true;
 238       else
 239         _menufilepath = argv[i];
 240     } else if (arg == "-script") {
 241       if (++i >= argc)
 242         err = true;
 243       else
 244         _scriptfilepath = argv[i];
 245     } else if (arg == "-sync") {
 246       _sync = true;
 247     } else if (arg == "-single") {
 248       _single = true;
 249     } else if (arg == "-version") {
 250       showVersion();
 251       ::exit(0);
 252     } else if (arg == "-help") {
 253       showHelp();
 254       ::exit(0);
 255     } else
 256       err = true;
 257
 258     if (err) {
 259       showHelp();
 260       exit(1);
 261     }
 262   }
 263 }
 264
 265
 266 void Openbox::showVersion()
 267 {
 268   printf(_("Openbox - version %s\n"), OPENBOX_VERSION);
 269   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 270 }
 271
 272
 273 void Openbox::showHelp()
 274 {
 275   showVersion(); // show the version string and copyright
 276
 277   // print program usage and command line options
 278   printf(_("Usage: %s [OPTIONS...]\n\
 279   Options:\n\
 280   -display <string>  use display connection.\n\
 281   -single            run on a single screen (default is to run every one).\n\
 282   -rc <string>       use alternate resource file.\n\
 283   -menu <string>     use alternate menu file.\n\
 284   -script <string>   use alternate startup script file.\n\
 285   -sync              run in synchronous mode (for debugging).\n\
 286   -version           display version and exit.\n\
 287   -help              display this help text and exit.\n\n"), _argv[0]);
 288
 289   printf(_("Compile time options:\n\
 290   Debugging: %s\n\
 291   Shape:     %s\n\
 292   Xinerama:  %s\n\
 293   Xkb:       %s\n"),
 294 #ifdef    DEBUG
 295          _("yes"),
 296 #else // !DEBUG
 297          _("no"),
 298 #endif // DEBUG
 299
 300 #ifdef    SHAPE
 301          _("yes"),
 302 #else // !SHAPE
 303          _("no"),
 304 #endif // SHAPE
 305
 306 #ifdef    XINERAMA
 307          _("yes"),
 308 #else // !XINERAMA
 309          _("no"),
 310 #endif // XINERAMA
 311
 312 #ifdef    XKB
 313          _("yes")
 314 #else // !XKB
 315          _("no")
 316 #endif // XKB
 317     );
 318 }
 319
 320
 321 void Openbox::eventLoop()
 322 {
 323   while (!_shutdown) {
 324     _timermanager.fire(!_sync); // wait if not in sync mode
 325     dispatchEvents(); // from OtkEventDispatcher
 326     XFlush(otk::OBDisplay::display); // flush here before we go wait for timers
 327   }
 328 }
 329
 330
 331 void Openbox::addClient(Window window, OBClient *client)
 332 {
 333   _clients[window] = client;
 334 }
 335
 336
 337 void Openbox::removeClient(Window window)
 338 {
 339   _clients.erase(window);
 340 }
 341
 342
 343 OBClient *Openbox::findClient(Window window)
 344 {
 345   /*
 346     NOTE: we dont use _clients[] to find the value because that will insert
 347     a new null into the hash, which really sucks when we want to clean up the
 348     hash at shutdown!
 349   */
 350   ClientMap::iterator it = _clients.find(window);
 351   if (it != _clients.end())
 352     return it->second;
 353   else
 354     return (OBClient*) 0;
 355 }
 356
 357
 358 void Openbox::setFocusedClient(OBClient *c)
 359 {
 360   _focused_client = c;
 361   if (c) {
 362     _focused_screen = _screens[c->screen()];
 363   } else {
 364     assert(_focused_screen);
 365     XSetInputFocus(otk::OBDisplay::display, _focused_screen->focuswindow(),
 366                    RevertToNone, CurrentTime);
 367   }
 368   // set the NET_ACTIVE_WINDOW hint for all screens
 369   ScreenList::iterator it, end = _screens.end();
 370   for (it = _screens.begin(); it != end; ++it) {
 371     int num = (*it)->number();
 372     Window root = otk::OBDisplay::screenInfo(num)->rootWindow();
 373     _property->set(root, otk::OBProperty::net_active_window,
 374                    otk::OBProperty::Atom_Window,
 375                    (c && _focused_screen == *it) ? c->window() : None);
 376   }
 377
 378   // call the python Focus callbacks
 379   EventData data(_focused_screen->number(), c, EventFocus, 0);
 380   Openbox::instance->bindings()->fireEvent(&data);
 381 }
 382
 383 void Openbox::execute(int screen, const std::string &bin)
 384 {
 385 #ifdef    __EMX__
 386   // XXX: whats this for? windows?
 387   spawnlp(P_NOWAIT, "cmd.exe", "cmd.exe", "/c", bin.c_str(), NULL);
 388 #else //  __EMX__
 389   if (screen >= ScreenCount(otk::OBDisplay::display))
 390     screen = 0;
 391   const std::string &dstr =
 392     otk::OBDisplay::screenInfo(screen)->displayString();
 393
 394   if (! fork()) {
 395       setsid();
 396       int ret = putenv(const_cast<char *>(dstr.c_str()));
 397       assert(ret != -1);
 398       ret = execl("/bin/sh", "/bin/sh", "-c", bin.c_str(), NULL);
 399       exit(ret);
 400     }
 401 #endif // __EMX__
 402 }
 403
 404 }
 405