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
  18 extern "C" {
  19 #include <X11/cursorfont.h>
  20
  21 #ifdef    HAVE_SIGNAL_H
  22 #  include <signal.h>
  23 #endif // HAVE_SIGNAL_H
  24
  25 #ifdef    HAVE_FCNTL_H
  26 #  include <fcntl.h>
  27 #endif // HAVE_FCNTL_H
  28
  29 #ifdef    HAVE_SYS_WAIT_H
  30 #  include <sys/wait.h>
  31 #endif // HAVE_SYS_WAIT_H
  32
  33 #include "gettext.h"
  34 #define _(str) gettext(str)
  35 }
  36
  37 #include <algorithm>
  38 #include <cstdio>
  39 #include <cstdlib>
  40
  41 namespace otk {
  42 extern void initialize();
  43 extern void destroy();
  44 }
  45
  46 namespace ob {
  47
  48 Openbox *openbox = (Openbox *) 0;
  49
  50
  51 void Openbox::signalHandler(int signal)
  52 {
  53   switch (signal) {
  54   case SIGUSR1:
  55     printf("Caught SIGUSR1 signal. Restarting.\n");
  56     openbox->restart();
  57     break;
  58
  59   case SIGCHLD:
  60     wait(NULL);
  61     break;
  62
  63   case SIGHUP:
  64   case SIGINT:
  65   case SIGTERM:
  66   case SIGPIPE:
  67     printf("Caught signal %d. Exiting.\n", signal);
  68     openbox->shutdown();
  69     break;
  70
  71   case SIGFPE:
  72   case SIGSEGV:
  73     printf("Caught signal %d. Aborting and dumping core.\n", signal);
  74     abort();
  75   }
  76 }
  77
  78
  79 Openbox::Openbox(int argc, char **argv)
  80   : otk::EventDispatcher(),
  81     otk::EventHandler()
  82 {
  83   struct sigaction action;
  84
  85   _state = State_Starting; // initializing everything
  86
  87   openbox = this;
  88
  89   _argv = argv;
  90   _shutdown = false;
  91   _restart = false;
  92   _rcfilepath = otk::expandTilde("~/.openbox/rc3");
  93   _scriptfilepath = otk::expandTilde("~/.openbox/user.py");
  94   _focused_client = 0;
  95   _sync = false;
  96   _single = false;
  97
  98   parseCommandLine(argc, argv);
  99
 100   otk::initialize();
 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   sigaction(SIGCHLD, &action, (struct sigaction *) 0);
 116
 117   // anything that died while we were restarting won't give us a SIGCHLD
 118   while (waitpid(-1, NULL, WNOHANG) > 0);
 119
 120   _actions = new Actions();
 121   _bindings = new Bindings();
 122
 123   setMasterHandler(_actions); // set as the master event handler
 124
 125   // create the mouse cursors we'll use
 126   _cursors.session = XCreateFontCursor(**otk::display, XC_left_ptr);
 127   _cursors.move = XCreateFontCursor(**otk::display, XC_fleur);
 128   _cursors.ll_angle = XCreateFontCursor(**otk::display, XC_ll_angle);
 129   _cursors.lr_angle = XCreateFontCursor(**otk::display, XC_lr_angle);
 130   _cursors.ul_angle = XCreateFontCursor(**otk::display, XC_ul_angle);
 131   _cursors.ur_angle = XCreateFontCursor(**otk::display, XC_ur_angle);
 132
 133   // initialize scripting
 134   python_init(argv[0]);
 135
 136   // load config values
 137   //python_exec(SCRIPTDIR"/config.py"); // load openbox config values
 138   // run all of the python scripts
 139   //python_exec(SCRIPTDIR"/builtins.py"); // builtin callbacks
 140   //python_exec(SCRIPTDIR"/focus.py"); // focus helpers
 141   // run the user's script or the system defaults if that fails
 142   if (!python_exec(_scriptfilepath.c_str()))
 143     python_exec(SCRIPTDIR"/defaults.py"); // system default bahaviors
 144
 145   // initialize all the screens
 146   _focused_screen = 0;
 147
 148   for (int i = 0, max = ScreenCount(**otk::display); i < max; ++i) {
 149     Screen *screen;
 150     // in single mode skip the screens we don't want to manage
 151     if (_single && i != DefaultScreen(**otk::display)) {
 152       _screens.push_back(0);
 153       continue;
 154     }
 155     // try manage the screen
 156     screen = new Screen(i);
 157     if (screen->managed()) {
 158       _screens.push_back(screen);
 159       if (!_focused_screen) // set this to the first screen managed
 160         _focused_screen = screen;
 161     } else {
 162       delete screen;
 163       _screens.push_back(0);
 164     }
 165   }
 166
 167   assert(_focused_screen);
 168
 169   if (_screens.empty()) {
 170     printf(_("No screens were found without a window manager. Exiting.\n"));
 171     ::exit(1);
 172   }
 173
 174   ScreenList::iterator it, end = _screens.end();
 175   for (it = _screens.begin(); it != end; ++it) {
 176     (*it)->manageExisting();
 177   }
 178
 179   // grab any keys set up before the screens existed
 180   _bindings->grabKeys(true);
 181
 182   // set up input focus
 183   setFocusedClient(0);
 184
 185   _state = State_Normal; // done starting
 186 }
 187
 188
 189 Openbox::~Openbox()
 190 {
 191   _state = State_Exiting; // time to kill everything
 192
 193   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 194
 195   delete _bindings;
 196   delete _actions;
 197
 198   python_destroy();
 199
 200   XSetInputFocus(**otk::display, PointerRoot, RevertToNone,
 201                  CurrentTime);
 202   XSync(**otk::display, false);
 203
 204   otk::destroy();
 205 }
 206
 207
 208 void Openbox::parseCommandLine(int argc, char **argv)
 209 {
 210   bool err = false;
 211
 212   for (int i = 1; i < argc; ++i) {
 213     std::string arg(argv[i]);
 214
 215     if (arg == "-rc") {
 216       if (++i >= argc)
 217         err = true;
 218       else
 219         _rcfilepath = argv[i];
 220     } else if (arg == "-menu") {
 221       if (++i >= argc)
 222         err = true;
 223       else
 224         _menufilepath = argv[i];
 225     } else if (arg == "-script") {
 226       if (++i >= argc)
 227         err = true;
 228       else
 229         _scriptfilepath = argv[i];
 230     } else if (arg == "-sync") {
 231       _sync = true;
 232     } else if (arg == "-single") {
 233       _single = true;
 234     } else if (arg == "-version") {
 235       showVersion();
 236       ::exit(0);
 237     } else if (arg == "-help") {
 238       showHelp();
 239       ::exit(0);
 240     } else
 241       err = true;
 242
 243     if (err) {
 244       showHelp();
 245       exit(1);
 246     }
 247   }
 248 }
 249
 250
 251 void Openbox::showVersion()
 252 {
 253   printf(_("Openbox - version %s\n"), VERSION);
 254   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 255 }
 256
 257
 258 void Openbox::showHelp()
 259 {
 260   showVersion(); // show the version string and copyright
 261
 262   // print program usage and command line options
 263   printf(_("Usage: %s [OPTIONS...]\n\
 264   Options:\n\
 265   -display <string>  use display connection.\n\
 266   -single            run on a single screen (default is to run every one).\n\
 267   -rc <string>       use alternate resource file.\n\
 268   -menu <string>     use alternate menu file.\n\
 269   -script <string>   use alternate startup script file.\n\
 270   -sync              run in synchronous mode (for debugging X errors).\n\
 271   -version           display version and exit.\n\
 272   -help              display this help text and exit.\n\n"), _argv[0]);
 273
 274   printf(_("Compile time options:\n\
 275   Debugging: %s\n\
 276   Shape:     %s\n\
 277   Xinerama:  %s\n\
 278   Xkb:       %s\n"),
 279 #ifdef    DEBUG
 280          _("yes"),
 281 #else // !DEBUG
 282          _("no"),
 283 #endif // DEBUG
 284
 285 #ifdef    SHAPE
 286          _("yes"),
 287 #else // !SHAPE
 288          _("no"),
 289 #endif // SHAPE
 290
 291 #ifdef    XINERAMA
 292          _("yes"),
 293 #else // !XINERAMA
 294          _("no"),
 295 #endif // XINERAMA
 296
 297 #ifdef    XKB
 298          _("yes")
 299 #else // !XKB
 300          _("no")
 301 #endif // XKB
 302     );
 303 }
 304
 305
 306 void Openbox::eventLoop()
 307 {
 308   while (true) {
 309     dispatchEvents(); // from otk::EventDispatcher
 310     XFlush(**otk::display); // flush here before we go wait for timers
 311     // don't wait if we're to shutdown
 312     if (_shutdown) break;
 313     otk::Timer::dispatchTimers(!_sync); // wait if not in sync mode
 314   }
 315 }
 316
 317
 318 void Openbox::addClient(Window window, Client *client)
 319 {
 320   _clients[window] = client;
 321 }
 322
 323
 324 void Openbox::removeClient(Window window)
 325 {
 326   _clients.erase(window);
 327 }
 328
 329
 330 Client *Openbox::findClient(Window window)
 331 {
 332   /*
 333     NOTE: we dont use _clients[] to find the value because that will insert
 334     a new null into the hash, which really sucks when we want to clean up the
 335     hash at shutdown!
 336   */
 337   ClientMap::iterator it = _clients.find(window);
 338   if (it != _clients.end())
 339     return it->second;
 340   else
 341     return (Client*) 0;
 342 }
 343
 344
 345 void Openbox::setFocusedClient(Client *c)
 346 {
 347   // sometimes this is called with the already-focused window, this is
 348   // important for the python scripts to work (eg, c = 0 twice). don't just
 349   // return if _focused_client == c
 350
 351   assert(_focused_screen);
 352
 353   // uninstall the old colormap
 354   if (_focused_client)
 355     _focused_client->installColormap(false);
 356   else
 357     _focused_screen->installColormap(false);
 358
 359   _focused_client = c;
 360   if (c) {
 361     _focused_screen = _screens[c->screen()];
 362
 363     // install the client's colormap
 364     c->installColormap(true);
 365   } else {
 366     XSetInputFocus(**otk::display, _focused_screen->focuswindow(),
 367                    RevertToNone, CurrentTime);
 368
 369     // install the root window colormap
 370     _focused_screen->installColormap(true);
 371   }
 372   // set the NET_ACTIVE_WINDOW hint for all screens
 373   ScreenList::iterator it, end = _screens.end();
 374   for (it = _screens.begin(); it != end; ++it) {
 375     int num = (*it)->number();
 376     Window root = otk::display->screenInfo(num)->rootWindow();
 377     otk::Property::set(root, otk::Property::atoms.net_active_window,
 378                        otk::Property::atoms.window,
 379                        (c && _focused_screen == *it) ? c->window() : None);
 380   }
 381
 382   // call the python Focus callbacks
 383   EventData data(_focused_screen->number(), c, EventAction::Focus, 0);
 384   _bindings->fireEvent(&data);
 385 }
 386
 387 }
 388