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_SYS_WAIT_H
  39 #  include <sys/wait.h>
  40 #endif // HAVE_SYS_WAIT_H
  41
  42 #include "gettext.h"
  43 #define _(str) gettext(str)
  44 }
  45
  46 #include <algorithm>
  47
  48 namespace ob {
  49
  50 Openbox *openbox = (Openbox *) 0;
  51
  52
  53 void Openbox::signalHandler(int signal)
  54 {
  55   switch (signal) {
  56   case SIGUSR1:
  57     printf("Caught SIGUSR1 signal. Restarting.\n");
  58     openbox->restart();
  59     break;
  60
  61   case SIGCHLD:
  62     wait(NULL);
  63     break;
  64
  65   case SIGHUP:
  66   case SIGINT:
  67   case SIGTERM:
  68   case SIGPIPE:
  69     printf("Caught signal %d. Exiting.\n", signal);
  70     openbox->shutdown();
  71     break;
  72
  73   case SIGFPE:
  74   case SIGSEGV:
  75     printf("Caught signal %d. Aborting and dumping core.\n", signal);
  76     abort();
  77   }
  78 }
  79
  80
  81 Openbox::Openbox(int argc, char **argv)
  82   : otk::EventDispatcher(),
  83     otk::EventHandler(),
  84     _display()
  85 {
  86   struct sigaction action;
  87
  88   _state = State_Starting; // initializing everything
  89
  90   openbox = this;
  91
  92   _displayreq = (char*) 0;
  93   _argv = argv;
  94   _shutdown = false;
  95   _restart = false;
  96   _rcfilepath = otk::expandTilde("~/.openbox/rc3");
  97   _scriptfilepath = otk::expandTilde("~/.openbox/user.py");
  98   _focused_client = 0;
  99   _sync = false;
 100   _single = false;
 101
 102   parseCommandLine(argc, argv);
 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   otk::RenderColor::initialize();
 123   otk::Timer::initialize();
 124   otk::Property::initialize();
 125   _actions = new Actions();
 126   _bindings = new Bindings();
 127
 128   setMasterHandler(_actions); // set as the master event handler
 129
 130   // create the mouse cursors we'll use
 131   _cursors.session = XCreateFontCursor(**otk::display, XC_left_ptr);
 132   _cursors.move = XCreateFontCursor(**otk::display, XC_fleur);
 133   _cursors.ll_angle = XCreateFontCursor(**otk::display, XC_ll_angle);
 134   _cursors.lr_angle = XCreateFontCursor(**otk::display, XC_lr_angle);
 135   _cursors.ul_angle = XCreateFontCursor(**otk::display, XC_ul_angle);
 136   _cursors.ur_angle = XCreateFontCursor(**otk::display, XC_ur_angle);
 137
 138   // initialize scripting
 139   python_init(argv[0]);
 140
 141   // load config values
 142   //python_exec(SCRIPTDIR"/config.py"); // load openbox config values
 143   // run all of the python scripts
 144   //python_exec(SCRIPTDIR"/builtins.py"); // builtin callbacks
 145   //python_exec(SCRIPTDIR"/focus.py"); // focus helpers
 146   // run the user's script or the system defaults if that fails
 147   if (!python_exec(_scriptfilepath.c_str()))
 148     python_exec(SCRIPTDIR"/defaults.py"); // system default bahaviors
 149
 150   // initialize all the screens
 151   _focused_screen = 0;
 152
 153   for (int i = 0, max = ScreenCount(**otk::display); i < max; ++i) {
 154     Screen *screen;
 155     if (_single && i != DefaultScreen(**otk::display)) {
 156       _screens.push_back(0);
 157       continue;
 158     }
 159     screen = new Screen(i);
 160     if (screen->managed()) {
 161       _screens.push_back(screen);
 162       if (!_focused_screen) // set this to the first screen managed
 163         _focused_screen = screen;
 164     } else {
 165       delete screen;
 166       _screens.push_back(0);
 167     }
 168   }
 169
 170   assert(_focused_screen);
 171
 172   if (_screens.empty()) {
 173     printf(_("No screens were found without a window manager. Exiting.\n"));
 174     ::exit(1);
 175   }
 176
 177   ScreenList::iterator it, end = _screens.end();
 178   for (it = _screens.begin(); it != end; ++it) {
 179     (*it)->manageExisting();
 180   }
 181
 182   // grab any keys set up before the screens existed
 183   _bindings->grabKeys(true);
 184
 185   // set up input focus
 186   setFocusedClient(0);
 187
 188   _state = State_Normal; // done starting
 189 }
 190
 191
 192 Openbox::~Openbox()
 193 {
 194   _state = State_Exiting; // time to kill everything
 195
 196   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 197
 198   delete _bindings;
 199   delete _actions;
 200
 201   python_destroy();
 202
 203   XSetInputFocus(**otk::display, PointerRoot, RevertToNone,
 204                  CurrentTime);
 205   XSync(**otk::display, false);
 206
 207   // this tends to block.. i honestly am not sure why. causing an x error in
 208   // the shutdown process unblocks it. blackbox simply did a ::exit(0), so
 209   // all im gunna do is the same.
 210   //delete _display;
 211
 212   otk::Timer::destroy();
 213   otk::RenderColor::destroy();
 214 }
 215
 216
 217 void Openbox::parseCommandLine(int argc, char **argv)
 218 {
 219   bool err = false;
 220
 221   for (int i = 1; i < argc; ++i) {
 222     std::string arg(argv[i]);
 223
 224     if (arg == "-display") {
 225       if (++i >= argc)
 226         err = true;
 227       else
 228         _displayreq = argv[i];
 229     } else if (arg == "-rc") {
 230       if (++i >= argc)
 231         err = true;
 232       else
 233         _rcfilepath = argv[i];
 234     } else if (arg == "-menu") {
 235       if (++i >= argc)
 236         err = true;
 237       else
 238         _menufilepath = argv[i];
 239     } else if (arg == "-script") {
 240       if (++i >= argc)
 241         err = true;
 242       else
 243         _scriptfilepath = argv[i];
 244     } else if (arg == "-sync") {
 245       _sync = true;
 246     } else if (arg == "-single") {
 247       _single = true;
 248     } else if (arg == "-version") {
 249       showVersion();
 250       ::exit(0);
 251     } else if (arg == "-help") {
 252       showHelp();
 253       ::exit(0);
 254     } else
 255       err = true;
 256
 257     if (err) {
 258       showHelp();
 259       exit(1);
 260     }
 261   }
 262 }
 263
 264
 265 void Openbox::showVersion()
 266 {
 267   printf(_("Openbox - version %s\n"), VERSION);
 268   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 269 }
 270
 271
 272 void Openbox::showHelp()
 273 {
 274   showVersion(); // show the version string and copyright
 275
 276   // print program usage and command line options
 277   printf(_("Usage: %s [OPTIONS...]\n\
 278   Options:\n\
 279   -display <string>  use display connection.\n\
 280   -single            run on a single screen (default is to run every one).\n\
 281   -rc <string>       use alternate resource file.\n\
 282   -menu <string>     use alternate menu file.\n\
 283   -script <string>   use alternate startup script file.\n\
 284   -sync              run in synchronous mode (for debugging X errors).\n\
 285   -version           display version and exit.\n\
 286   -help              display this help text and exit.\n\n"), _argv[0]);
 287
 288   printf(_("Compile time options:\n\
 289   Debugging: %s\n\
 290   Shape:     %s\n\
 291   Xinerama:  %s\n\
 292   Xkb:       %s\n"),
 293 #ifdef    DEBUG
 294          _("yes"),
 295 #else // !DEBUG
 296          _("no"),
 297 #endif // DEBUG
 298
 299 #ifdef    SHAPE
 300          _("yes"),
 301 #else // !SHAPE
 302          _("no"),
 303 #endif // SHAPE
 304
 305 #ifdef    XINERAMA
 306          _("yes"),
 307 #else // !XINERAMA
 308          _("no"),
 309 #endif // XINERAMA
 310
 311 #ifdef    XKB
 312          _("yes")
 313 #else // !XKB
 314          _("no")
 315 #endif // XKB
 316     );
 317 }
 318
 319
 320 void Openbox::eventLoop()
 321 {
 322   while (true) {
 323     dispatchEvents(); // from otk::EventDispatcher
 324     XFlush(**otk::display); // flush here before we go wait for timers
 325     // don't wait if we're to shutdown
 326     if (_shutdown) break;
 327     otk::Timer::dispatchTimers(!_sync); // wait if not in sync mode
 328   }
 329 }
 330
 331
 332 void Openbox::addClient(Window window, Client *client)
 333 {
 334   _clients[window] = client;
 335 }
 336
 337
 338 void Openbox::removeClient(Window window)
 339 {
 340   _clients.erase(window);
 341 }
 342
 343
 344 Client *Openbox::findClient(Window window)
 345 {
 346   /*
 347     NOTE: we dont use _clients[] to find the value because that will insert
 348     a new null into the hash, which really sucks when we want to clean up the
 349     hash at shutdown!
 350   */
 351   ClientMap::iterator it = _clients.find(window);
 352   if (it != _clients.end())
 353     return it->second;
 354   else
 355     return (Client*) 0;
 356 }
 357
 358
 359 void Openbox::setFocusedClient(Client *c)
 360 {
 361   _focused_client = c;
 362   if (c) {
 363     _focused_screen = _screens[c->screen()];
 364   } else {
 365     assert(_focused_screen);
 366     XSetInputFocus(**otk::display, _focused_screen->focuswindow(),
 367                    RevertToNone, CurrentTime);
 368   }
 369   // set the NET_ACTIVE_WINDOW hint for all screens
 370   ScreenList::iterator it, end = _screens.end();
 371   for (it = _screens.begin(); it != end; ++it) {
 372     int num = (*it)->number();
 373     Window root = otk::display->screenInfo(num)->rootWindow();
 374     otk::Property::set(root, otk::Property::atoms.net_active_window,
 375                        otk::Property::atoms.window,
 376                        (c && _focused_screen == *it) ? c->window() : None);
 377   }
 378
 379   // call the python Focus callbacks
 380   EventData data(_focused_screen->number(), c, EventAction::Focus, 0);
 381   _bindings->fireEvent(&data);
 382 }
 383
 384 }
 385