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