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