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     // in single mode skip the screens we don't want to manage
 156     if (_single && i != DefaultScreen(**otk::display)) {
 157       _screens.push_back(0);
 158       continue;
 159     }
 160     // try manage the screen
 161     screen = new Screen(i);
 162     if (screen->managed()) {
 163       _screens.push_back(screen);
 164       if (!_focused_screen) // set this to the first screen managed
 165         _focused_screen = screen;
 166     } else {
 167       delete screen;
 168       _screens.push_back(0);
 169     }
 170   }
 171
 172   assert(_focused_screen);
 173
 174   if (_screens.empty()) {
 175     printf(_("No screens were found without a window manager. Exiting.\n"));
 176     ::exit(1);
 177   }
 178
 179   ScreenList::iterator it, end = _screens.end();
 180   for (it = _screens.begin(); it != end; ++it) {
 181     (*it)->manageExisting();
 182   }
 183
 184   // grab any keys set up before the screens existed
 185   _bindings->grabKeys(true);
 186
 187   // set up input focus
 188   setFocusedClient(0);
 189
 190   _state = State_Normal; // done starting
 191 }
 192
 193
 194 Openbox::~Openbox()
 195 {
 196   _state = State_Exiting; // time to kill everything
 197
 198   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 199
 200   delete _bindings;
 201   delete _actions;
 202
 203   python_destroy();
 204
 205   XSetInputFocus(**otk::display, PointerRoot, RevertToNone,
 206                  CurrentTime);
 207   XSync(**otk::display, false);
 208
 209   // this tends to block.. i honestly am not sure why. causing an x error in
 210   // the shutdown process unblocks it. blackbox simply did a ::exit(0), so
 211   // all im gunna do is the same.
 212   //delete _display;
 213
 214   otk::Timer::destroy();
 215   otk::RenderColor::destroy();
 216 }
 217
 218
 219 void Openbox::parseCommandLine(int argc, char **argv)
 220 {
 221   bool err = false;
 222
 223   for (int i = 1; i < argc; ++i) {
 224     std::string arg(argv[i]);
 225
 226     if (arg == "-display") {
 227       if (++i >= argc)
 228         err = true;
 229       else
 230         _displayreq = argv[i];
 231     } else if (arg == "-rc") {
 232       if (++i >= argc)
 233         err = true;
 234       else
 235         _rcfilepath = argv[i];
 236     } else if (arg == "-menu") {
 237       if (++i >= argc)
 238         err = true;
 239       else
 240         _menufilepath = argv[i];
 241     } else if (arg == "-script") {
 242       if (++i >= argc)
 243         err = true;
 244       else
 245         _scriptfilepath = argv[i];
 246     } else if (arg == "-sync") {
 247       _sync = true;
 248     } else if (arg == "-single") {
 249       _single = true;
 250     } else if (arg == "-version") {
 251       showVersion();
 252       ::exit(0);
 253     } else if (arg == "-help") {
 254       showHelp();
 255       ::exit(0);
 256     } else
 257       err = true;
 258
 259     if (err) {
 260       showHelp();
 261       exit(1);
 262     }
 263   }
 264 }
 265
 266
 267 void Openbox::showVersion()
 268 {
 269   printf(_("Openbox - version %s\n"), VERSION);
 270   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 271 }
 272
 273
 274 void Openbox::showHelp()
 275 {
 276   showVersion(); // show the version string and copyright
 277
 278   // print program usage and command line options
 279   printf(_("Usage: %s [OPTIONS...]\n\
 280   Options:\n\
 281   -display <string>  use display connection.\n\
 282   -single            run on a single screen (default is to run every one).\n\
 283   -rc <string>       use alternate resource file.\n\
 284   -menu <string>     use alternate menu file.\n\
 285   -script <string>   use alternate startup script file.\n\
 286   -sync              run in synchronous mode (for debugging X errors).\n\
 287   -version           display version and exit.\n\
 288   -help              display this help text and exit.\n\n"), _argv[0]);
 289
 290   printf(_("Compile time options:\n\
 291   Debugging: %s\n\
 292   Shape:     %s\n\
 293   Xinerama:  %s\n\
 294   Xkb:       %s\n"),
 295 #ifdef    DEBUG
 296          _("yes"),
 297 #else // !DEBUG
 298          _("no"),
 299 #endif // DEBUG
 300
 301 #ifdef    SHAPE
 302          _("yes"),
 303 #else // !SHAPE
 304          _("no"),
 305 #endif // SHAPE
 306
 307 #ifdef    XINERAMA
 308          _("yes"),
 309 #else // !XINERAMA
 310          _("no"),
 311 #endif // XINERAMA
 312
 313 #ifdef    XKB
 314          _("yes")
 315 #else // !XKB
 316          _("no")
 317 #endif // XKB
 318     );
 319 }
 320
 321
 322 void Openbox::eventLoop()
 323 {
 324   while (true) {
 325     dispatchEvents(); // from otk::EventDispatcher
 326     XFlush(**otk::display); // flush here before we go wait for timers
 327     // don't wait if we're to shutdown
 328     if (_shutdown) break;
 329     otk::Timer::dispatchTimers(!_sync); // wait if not in sync mode
 330   }
 331 }
 332
 333
 334 void Openbox::addClient(Window window, Client *client)
 335 {
 336   _clients[window] = client;
 337 }
 338
 339
 340 void Openbox::removeClient(Window window)
 341 {
 342   _clients.erase(window);
 343 }
 344
 345
 346 Client *Openbox::findClient(Window window)
 347 {
 348   /*
 349     NOTE: we dont use _clients[] to find the value because that will insert
 350     a new null into the hash, which really sucks when we want to clean up the
 351     hash at shutdown!
 352   */
 353   ClientMap::iterator it = _clients.find(window);
 354   if (it != _clients.end())
 355     return it->second;
 356   else
 357     return (Client*) 0;
 358 }
 359
 360
 361 void Openbox::setFocusedClient(Client *c)
 362 {
 363   // sometimes this is called with the already-focused window, this is
 364   // important for the python scripts to work (eg, c = 0 twice). don't just
 365   // return if _focused_client == c
 366
 367   assert(_focused_screen);
 368
 369   // uninstall the old colormap
 370   if (_focused_client)
 371     _focused_client->installColormap(false);
 372   else
 373     _focused_screen->installColormap(false);
 374
 375   _focused_client = c;
 376   if (c) {
 377     _focused_screen = _screens[c->screen()];
 378
 379     // install the client's colormap
 380     c->installColormap(true);
 381   } else {
 382     XSetInputFocus(**otk::display, _focused_screen->focuswindow(),
 383                    RevertToNone, CurrentTime);
 384
 385     // install the root window colormap
 386     _focused_screen->installColormap(true);
 387   }
 388   // set the NET_ACTIVE_WINDOW hint for all screens
 389   ScreenList::iterator it, end = _screens.end();
 390   for (it = _screens.begin(); it != end; ++it) {
 391     int num = (*it)->number();
 392     Window root = otk::display->screenInfo(num)->rootWindow();
 393     otk::Property::set(root, otk::Property::atoms.net_active_window,
 394                        otk::Property::atoms.window,
 395                        (c && _focused_screen == *it) ? c->window() : None);
 396   }
 397
 398   // call the python Focus callbacks
 399   EventData data(_focused_screen->number(), c, EventAction::Focus, 0);
 400   _bindings->fireEvent(&data);
 401 }
 402
 403 }
 404