Dogcows Code - chaz/openbox/blob - src/openbox.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 #include "config.h"
   4
   5 #include "openbox.hh"
   6 #include "client.hh"
   7 #include "screen.hh"
   8 #include "actions.hh"
   9 #include "bindings.hh"
  10 #include "python.hh"
  11 #include "otk/property.hh"
  12 #include "otk/assassin.hh"
  13 #include "otk/property.hh"
  14 #include "otk/util.hh"
  15 #include "otk/rendercolor.hh"
  16 #include "otk/renderstyle.hh"
  17 #include "otk/messagedialog.hh"
  18
  19 extern "C" {
  20 #include <X11/cursorfont.h>
  21
  22 #ifdef    HAVE_SIGNAL_H
  23 #  include <signal.h>
  24 #endif // HAVE_SIGNAL_H
  25
  26 #ifdef    HAVE_FCNTL_H
  27 #  include <fcntl.h>
  28 #endif // HAVE_FCNTL_H
  29
  30 #ifdef    HAVE_SYS_WAIT_H
  31 #  include <sys/wait.h>
  32 #endif // HAVE_SYS_WAIT_H
  33
  34 #include "gettext.h"
  35 #define _(str) gettext(str)
  36 }
  37
  38 #include <algorithm>
  39 #include <cstdio>
  40 #include <cstdlib>
  41
  42 namespace otk {
  43 extern void initialize();
  44 extern void destroy();
  45 }
  46
  47 namespace ob {
  48
  49 Openbox *openbox = (Openbox *) 0;
  50
  51
  52 void Openbox::signalHandler(int signal)
  53 {
  54   switch (signal) {
  55   case SIGUSR1:
  56     printf("Caught SIGUSR1 signal. Restarting.\n");
  57     openbox->restart();
  58     break;
  59
  60   case SIGCHLD:
  61     wait(NULL);
  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 {
  84   struct sigaction action;
  85
  86   _state = State_Starting; // initializing everything
  87
  88   openbox = this;
  89
  90   _argv = argv;
  91   _shutdown = false;
  92   _restart = false;
  93   _rcfilepath = otk::expandTilde("~/.openbox/rc3");
  94   _scriptfilepath = otk::expandTilde("~/.openbox/user.py");
  95   _focused_client = 0;
  96   _sync = false;
  97   _single = false;
  98   _remote = false;
  99
 100   parseCommandLine(argc, argv);
 101
 102   otk::initialize();
 103
 104   XSynchronize(**otk::display, _sync);
 105
 106   // set up the signal handler
 107   action.sa_handler = Openbox::signalHandler;
 108   action.sa_mask = sigset_t();
 109   action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
 110   sigaction(SIGUSR1, &action, (struct sigaction *) 0);
 111   sigaction(SIGPIPE, &action, (struct sigaction *) 0);
 112   sigaction(SIGSEGV, &action, (struct sigaction *) 0);
 113   sigaction(SIGFPE, &action, (struct sigaction *) 0);
 114   sigaction(SIGTERM, &action, (struct sigaction *) 0);
 115   sigaction(SIGINT, &action, (struct sigaction *) 0);
 116   sigaction(SIGHUP, &action, (struct sigaction *) 0);
 117   sigaction(SIGCHLD, &action, (struct sigaction *) 0);
 118
 119   // anything that died while we were restarting won't give us a SIGCHLD
 120   while (waitpid(-1, NULL, WNOHANG) > 0);
 121
 122   _actions = new Actions();
 123   _bindings = new Bindings();
 124
 125   setMasterHandler(_actions); // set as the master event handler
 126
 127   // create the mouse cursors we'll use
 128   _cursors.session = XCreateFontCursor(**otk::display, XC_left_ptr);
 129   _cursors.move = XCreateFontCursor(**otk::display, XC_fleur);
 130   _cursors.ll_angle = XCreateFontCursor(**otk::display, XC_ll_angle);
 131   _cursors.lr_angle = XCreateFontCursor(**otk::display, XC_lr_angle);
 132   _cursors.ul_angle = XCreateFontCursor(**otk::display, XC_ul_angle);
 133   _cursors.ur_angle = XCreateFontCursor(**otk::display, XC_ur_angle);
 134
 135   // initialize all the screens
 136   _focused_screen = 0;
 137   _managed_count = 0;
 138
 139   for (int i = 0, max = ScreenCount(**otk::display); i < max; ++i) {
 140     Screen *screen;
 141     // in single mode skip the screens we don't want to manage
 142     if (_single && i != DefaultScreen(**otk::display)) {
 143       _screens.push_back(0);
 144       continue;
 145     }
 146     // try manage the screen
 147     screen = new Screen(i);
 148     if (screen->managed()) {
 149       _screens.push_back(screen);
 150       if (!_focused_screen) // set this to the first screen managed
 151         _focused_screen = screen;
 152       _managed_count++;
 153     } else {
 154       delete screen;
 155       _screens.push_back(0);
 156     }
 157   }
 158
 159   if (!_managed_count) {
 160     printf(_("No screens were found without a window manager. Exiting.\n"));
 161     ::exit(1);
 162   }
 163
 164   assert(_focused_screen);
 165
 166   // initialize scripting
 167   python_init(argv[0]);
 168
 169   // load the theme XXX TEMP SHIT
 170   otk::RenderStyle::setStyle(0, "");
 171
 172   int ret = python_exec(_scriptfilepath.c_str());
 173   if (ret == 2) {
 174       std::string msg;
 175       msg += _("An error occured while executing the python scripts.");
 176       msg += "\n\n";
 177       msg += _("See the exact error message in Openbox's output for details.");
 178       otk::MessageDialog dia(this, _("Python Error"), msg);
 179       otk::DialogButton ok(_("Okay"), true);
 180       otk::DialogButton retry(_("Restart"));
 181       dia.addButton(ok);
 182       dia.addButton(retry);
 183       dia.show();
 184       dia.focus();
 185       const otk::DialogButton &res = dia.run();
 186       if (res == retry) {
 187         _restart = _shutdown = true;
 188         return;
 189       }
 190   }
 191
 192   if (ret)
 193     python_exec(SCRIPTDIR"/defaults.py"); // system default bahaviors
 194
 195   ScreenList::iterator it, end = _screens.end();
 196   for (it = _screens.begin(); it != end; ++it)
 197     if (*it) (*it)->manageExisting();
 198
 199   // grab any keys set up before the screens existed
 200   //_bindings->grabKeys(true);
 201
 202   // set up input focus
 203   setFocusedClient(0);
 204
 205   _state = State_Normal; // done starting
 206 }
 207
 208
 209 Openbox::~Openbox()
 210 {
 211   _state = State_Exiting; // time to kill everything
 212
 213   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 214
 215   delete _bindings;
 216   delete _actions;
 217
 218   python_destroy();
 219
 220   XSetInputFocus(**otk::display, PointerRoot, RevertToNone,
 221                  CurrentTime);
 222   XSync(**otk::display, false);
 223
 224   otk::destroy();
 225 }
 226
 227
 228 void Openbox::parseCommandLine(int argc, char **argv)
 229 {
 230   bool err = false;
 231
 232   for (int i = 1; i < argc; ++i) {
 233     std::string arg(argv[i]);
 234
 235     if (arg == "-rc") {
 236       if (++i >= argc)
 237         err = true;
 238       else
 239         _rcfilepath = argv[i];
 240     } else if (arg == "-menu") {
 241       if (++i >= argc)
 242         err = true;
 243       else
 244         _menufilepath = argv[i];
 245     } else if (arg == "-script") {
 246       if (++i >= argc)
 247         err = true;
 248       else
 249         _scriptfilepath = argv[i];
 250     } else if (arg == "-sync") {
 251       _sync = true;
 252     } else if (arg == "-single") {
 253       _single = true;
 254     } else if (arg == "-remote") {
 255       _remote = true;
 256     } else if (arg == "-version") {
 257       showVersion();
 258       ::exit(0);
 259     } else if (arg == "-help") {
 260       showHelp();
 261       ::exit(0);
 262     } else
 263       err = true;
 264
 265     if (err) {
 266       showHelp();
 267       exit(1);
 268     }
 269   }
 270 }
 271
 272
 273 void Openbox::showVersion()
 274 {
 275   printf(_("Openbox - version %s\n"), VERSION);
 276   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 277 }
 278
 279
 280 void Openbox::showHelp()
 281 {
 282   showVersion(); // show the version string and copyright
 283
 284   // print program usage and command line options
 285   printf(_("Usage: %s [OPTIONS...]\n\
 286   Options:\n\
 287   -remote            optimize for a remote (low bandwidth) connection to the\n\
 288                      display/Xserver.\n\
 289   -single            run on a single screen (default is to run every one).\n\
 290   -rc <string>       use alternate resource file.\n\
 291   -menu <string>     use alternate menu file.\n\
 292   -script <string>   use alternate startup script file.\n\
 293   -sync              run in synchronous mode (for debugging X errors).\n\
 294   -version           display version and exit.\n\
 295   -help              display this help text and exit.\n\n"), _argv[0]);
 296
 297   printf(_("Compile time options:\n\
 298   Debugging: %s\n\
 299   Shape:     %s\n\
 300   Xinerama:  %s\n\
 301   Xkb:       %s\n"),
 302 #ifdef    DEBUG
 303          _("yes"),
 304 #else // !DEBUG
 305          _("no"),
 306 #endif // DEBUG
 307
 308 #ifdef    SHAPE
 309          _("yes"),
 310 #else // !SHAPE
 311          _("no"),
 312 #endif // SHAPE
 313
 314 #ifdef    XINERAMA
 315          _("yes"),
 316 #else // !XINERAMA
 317          _("no"),
 318 #endif // XINERAMA
 319
 320 #ifdef    XKB
 321          _("yes")
 322 #else // !XKB
 323          _("no")
 324 #endif // XKB
 325     );
 326 }
 327
 328
 329 void Openbox::eventLoop()
 330 {
 331   while (true) {
 332     dispatchEvents(false); // from otk::EventDispatcher
 333 //    XFlush(**otk::display); // flush here before we go wait for timers
 334                               // .. the XPending() should have done this last
 335                               // already, it does a flush when it returns 0
 336     // don't wait if we're to shutdown
 337     if (_shutdown) break;
 338     otk::Timer::dispatchTimers(!_sync); // wait if not in sync mode
 339   }
 340 }
 341
 342
 343 void Openbox::addClient(Window window, Client *client)
 344 {
 345   _clients[window] = client;
 346 }
 347
 348
 349 void Openbox::removeClient(Window window)
 350 {
 351   _clients.erase(window);
 352 }
 353
 354
 355 Client *Openbox::findClient(Window window)
 356 {
 357   /*
 358     NOTE: we dont use _clients[] to find the value because that will insert
 359     a new null into the hash, which really sucks when we want to clean up the
 360     hash at shutdown!
 361   */
 362   ClientMap::iterator it = _clients.find(window);
 363   if (it != _clients.end())
 364     return it->second;
 365   else
 366     return (Client*) 0;
 367 }
 368
 369
 370 void Openbox::setFocusedClient(Client *c)
 371 {
 372   // sometimes this is called with the already-focused window, this is
 373   // important for the python scripts to work (eg, c = 0 twice). don't just
 374   // return if _focused_client == c
 375
 376   assert(_focused_screen);
 377
 378   // uninstall the old colormap
 379   if (_focused_client)
 380     _focused_client->installColormap(false);
 381   else
 382     _focused_screen->installColormap(false);
 383
 384   _focused_client = c;
 385   if (c) {
 386     _focused_screen = _screens[c->screen()];
 387
 388     // install the client's colormap
 389     c->installColormap(true);
 390   } else {
 391     XSetInputFocus(**otk::display, _focused_screen->focuswindow(),
 392                    RevertToNone, CurrentTime);
 393
 394     // install the root window colormap
 395     _focused_screen->installColormap(true);
 396   }
 397   // set the NET_ACTIVE_WINDOW hint for all screens
 398   ScreenList::iterator it, end = _screens.end();
 399   for (it = _screens.begin(); it != end; ++it) {
 400     int num = (*it)->number();
 401     Window root = otk::display->screenInfo(num)->rootWindow();
 402     otk::Property::set(root, otk::Property::atoms.net_active_window,
 403                        otk::Property::atoms.window,
 404                        (c && _focused_screen == *it) ? c->window() : None);
 405   }
 406
 407   // call the python Focus callbacks
 408   EventData data(_focused_screen->number(), c, EventAction::Focus, 0);
 409   _bindings->fireEvent(&data);
 410 }
 411
 412 }
 413