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   otk::Timer::initialize();
 117   _property = new otk::Property();
 118   _actions = new Actions();
 119   _bindings = new Bindings();
 120
 121   setMasterHandler(_actions); // set as the master event handler
 122
 123   // create the mouse cursors we'll use
 124   _cursors.session = XCreateFontCursor(**otk::display, XC_left_ptr);
 125   _cursors.move = XCreateFontCursor(**otk::display, XC_fleur);
 126   _cursors.ll_angle = XCreateFontCursor(**otk::display, XC_ll_angle);
 127   _cursors.lr_angle = XCreateFontCursor(**otk::display, XC_lr_angle);
 128   _cursors.ul_angle = XCreateFontCursor(**otk::display, XC_ul_angle);
 129   _cursors.ur_angle = XCreateFontCursor(**otk::display, XC_ur_angle);
 130
 131   // initialize scripting
 132   python_init(argv[0]);
 133
 134   // load config values
 135   python_exec(SCRIPTDIR"/config.py"); // load openbox config values
 136   // run all of the python scripts
 137   python_exec(SCRIPTDIR"/builtins.py"); // builtin callbacks
 138   // run the user's script or the system defaults if that fails
 139   if (!python_exec(_scriptfilepath.c_str()))
 140     python_exec(SCRIPTDIR"/defaults.py"); // system default bahaviors
 141
 142   // initialize all the screens
 143   Screen *screen;
 144   int i = _single ? DefaultScreen(**otk::display) : 0;
 145   int max = _single ? i + 1 : ScreenCount(**otk::display);
 146   for (; i < max; ++i) {
 147     screen = new Screen(i);
 148     if (screen->managed())
 149       _screens.push_back(screen);
 150     else
 151       delete screen;
 152   }
 153
 154   if (_screens.empty()) {
 155     printf(_("No screens were found without a window manager. Exiting.\n"));
 156     ::exit(1);
 157   }
 158
 159   ScreenList::iterator it, end = _screens.end();
 160   for (it = _screens.begin(); it != end; ++it) {
 161     (*it)->manageExisting();
 162   }
 163
 164   // grab any keys set up before the screens existed
 165   _bindings->grabKeys(true);
 166
 167   // set up input focus
 168   _focused_screen = _screens[0];
 169   setFocusedClient(0);
 170
 171   _state = State_Normal; // done starting
 172 }
 173
 174
 175 Openbox::~Openbox()
 176 {
 177   _state = State_Exiting; // time to kill everything
 178
 179   int first_screen = _screens.front()->number();
 180
 181   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 182
 183   delete _bindings;
 184   delete _actions;
 185   delete _property;
 186
 187   python_destroy();
 188
 189   XSetInputFocus(**otk::display, PointerRoot, RevertToNone,
 190                  CurrentTime);
 191   XSync(**otk::display, false);
 192
 193   // this tends to block.. i honestly am not sure why. causing an x error in
 194   // the shutdown process unblocks it. blackbox simply did a ::exit(0), so
 195   // all im gunna do is the same.
 196   //otk::display->destroy();
 197
 198   otk::Timer::destroy();
 199
 200   if (_restart) {
 201     if (!_restart_prog.empty()) {
 202       const std::string &dstr =
 203         otk::display->screenInfo(first_screen)->displayString();
 204       otk::putenv(const_cast<char *>(dstr.c_str()));
 205       execlp(_restart_prog.c_str(), _restart_prog.c_str(), NULL);
 206       perror(_restart_prog.c_str());
 207     }
 208
 209     // fall back in case the above execlp doesn't work
 210     execvp(_argv[0], _argv);
 211     execvp(otk::basename(_argv[0]).c_str(), _argv);
 212   }
 213 }
 214
 215
 216 void Openbox::parseCommandLine(int argc, char **argv)
 217 {
 218   bool err = false;
 219
 220   for (int i = 1; i < argc; ++i) {
 221     std::string arg(argv[i]);
 222
 223     if (arg == "-display") {
 224       if (++i >= argc)
 225         err = true;
 226       else
 227         _displayreq = argv[i];
 228     } else if (arg == "-rc") {
 229       if (++i >= argc)
 230         err = true;
 231       else
 232         _rcfilepath = argv[i];
 233     } else if (arg == "-menu") {
 234       if (++i >= argc)
 235         err = true;
 236       else
 237         _menufilepath = argv[i];
 238     } else if (arg == "-script") {
 239       if (++i >= argc)
 240         err = true;
 241       else
 242         _scriptfilepath = argv[i];
 243     } else if (arg == "-sync") {
 244       _sync = true;
 245     } else if (arg == "-single") {
 246       _single = true;
 247     } else if (arg == "-version") {
 248       showVersion();
 249       ::exit(0);
 250     } else if (arg == "-help") {
 251       showHelp();
 252       ::exit(0);
 253     } else
 254       err = true;
 255
 256     if (err) {
 257       showHelp();
 258       exit(1);
 259     }
 260   }
 261 }
 262
 263
 264 void Openbox::showVersion()
 265 {
 266   printf(_("Openbox - version %s\n"), VERSION);
 267   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 268 }
 269
 270
 271 void Openbox::showHelp()
 272 {
 273   showVersion(); // show the version string and copyright
 274
 275   // print program usage and command line options
 276   printf(_("Usage: %s [OPTIONS...]\n\
 277   Options:\n\
 278   -display <string>  use display connection.\n\
 279   -single            run on a single screen (default is to run every one).\n\
 280   -rc <string>       use alternate resource file.\n\
 281   -menu <string>     use alternate menu file.\n\
 282   -script <string>   use alternate startup script file.\n\
 283   -sync              run in synchronous mode (for debugging).\n\
 284   -version           display version and exit.\n\
 285   -help              display this help text and exit.\n\n"), _argv[0]);
 286
 287   printf(_("Compile time options:\n\
 288   Debugging: %s\n\
 289   Shape:     %s\n\
 290   Xinerama:  %s\n\
 291   Xkb:       %s\n"),
 292 #ifdef    DEBUG
 293          _("yes"),
 294 #else // !DEBUG
 295          _("no"),
 296 #endif // DEBUG
 297
 298 #ifdef    SHAPE
 299          _("yes"),
 300 #else // !SHAPE
 301          _("no"),
 302 #endif // SHAPE
 303
 304 #ifdef    XINERAMA
 305          _("yes"),
 306 #else // !XINERAMA
 307          _("no"),
 308 #endif // XINERAMA
 309
 310 #ifdef    XKB
 311          _("yes")
 312 #else // !XKB
 313          _("no")
 314 #endif // XKB
 315     );
 316 }
 317
 318
 319 void Openbox::eventLoop()
 320 {
 321   while (true) {
 322     dispatchEvents(); // from otk::EventDispatcher
 323     XFlush(**otk::display); // flush here before we go wait for timers
 324     // don't wait if we're to shutdown
 325     if (_shutdown) break;
 326     otk::Timer::dispatchTimers(!_sync); // wait if not in sync mode
 327   }
 328 }
 329
 330
 331 void Openbox::addClient(Window window, Client *client)
 332 {
 333   _clients[window] = client;
 334 }
 335
 336
 337 void Openbox::removeClient(Window window)
 338 {
 339   _clients.erase(window);
 340 }
 341
 342
 343 Client *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 (Client*) 0;
 355 }
 356
 357
 358 void Openbox::setFocusedClient(Client *c)
 359 {
 360   _focused_client = c;
 361   if (c) {
 362     _focused_screen = _screens[c->screen()];
 363   } else {
 364     assert(_focused_screen);
 365     XSetInputFocus(**otk::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::display->screenInfo(num)->rootWindow();
 373     _property->set(root, otk::Property::net_active_window,
 374                    otk::Property::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   _bindings->fireEvent(&data);
 381 }
 382
 383 void Openbox::execute(int screen, const std::string &bin)
 384 {
 385   if (screen >= ScreenCount(**otk::display))
 386     screen = 0;
 387   otk::bexec(bin, otk::display->screenInfo(screen)->displayString());
 388 }
 389
 390 }
 391