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 #include "otk/renderstyle.hh"
  19
  20 extern "C" {
  21 #include <X11/cursorfont.h>
  22
  23 #ifdef    HAVE_STDIO_H
  24 #  include <stdio.h>
  25 #endif // HAVE_STDIO_H
  26
  27 #ifdef    HAVE_STDLIB_H
  28 #  include <stdlib.h>
  29 #endif // HAVE_STDLIB_H
  30
  31 #ifdef    HAVE_SIGNAL_H
  32 #  include <signal.h>
  33 #endif // HAVE_SIGNAL_H
  34
  35 #ifdef    HAVE_FCNTL_H
  36 #  include <fcntl.h>
  37 #endif // HAVE_FCNTL_H
  38
  39 #ifdef    HAVE_SYS_WAIT_H
  40 #  include <sys/wait.h>
  41 #endif // HAVE_SYS_WAIT_H
  42
  43 #include "gettext.h"
  44 #define _(str) gettext(str)
  45 }
  46
  47 #include <algorithm>
  48
  49 namespace ob {
  50
  51 Openbox *openbox = (Openbox *) 0;
  52
  53
  54 void Openbox::signalHandler(int signal)
  55 {
  56   switch (signal) {
  57   case SIGUSR1:
  58     printf("Caught SIGUSR1 signal. Restarting.\n");
  59     openbox->restart();
  60     break;
  61
  62   case SIGCHLD:
  63     wait(NULL);
  64     break;
  65
  66   case SIGHUP:
  67   case SIGINT:
  68   case SIGTERM:
  69   case SIGPIPE:
  70     printf("Caught signal %d. Exiting.\n", signal);
  71     openbox->shutdown();
  72     break;
  73
  74   case SIGFPE:
  75   case SIGSEGV:
  76     printf("Caught signal %d. Aborting and dumping core.\n", signal);
  77     abort();
  78   }
  79 }
  80
  81
  82 Openbox::Openbox(int argc, char **argv)
  83   : otk::EventDispatcher(),
  84     otk::EventHandler(),
  85     _display()
  86 {
  87   struct sigaction action;
  88
  89   _state = State_Starting; // initializing everything
  90
  91   openbox = this;
  92
  93   _displayreq = (char*) 0;
  94   _argv = argv;
  95   _shutdown = false;
  96   _restart = false;
  97   _rcfilepath = otk::expandTilde("~/.openbox/rc3");
  98   _scriptfilepath = otk::expandTilde("~/.openbox/user.py");
  99   _focused_client = 0;
 100   _sync = false;
 101   _single = false;
 102
 103   parseCommandLine(argc, argv);
 104
 105   XSynchronize(**otk::display, _sync);
 106
 107   // set up the signal handler
 108   action.sa_handler = Openbox::signalHandler;
 109   action.sa_mask = sigset_t();
 110   action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
 111   sigaction(SIGUSR1, &action, (struct sigaction *) 0);
 112   sigaction(SIGPIPE, &action, (struct sigaction *) 0);
 113   sigaction(SIGSEGV, &action, (struct sigaction *) 0);
 114   sigaction(SIGFPE, &action, (struct sigaction *) 0);
 115   sigaction(SIGTERM, &action, (struct sigaction *) 0);
 116   sigaction(SIGINT, &action, (struct sigaction *) 0);
 117   sigaction(SIGHUP, &action, (struct sigaction *) 0);
 118   sigaction(SIGCHLD, &action, (struct sigaction *) 0);
 119
 120   // anything that died while we were restarting won't give us a SIGCHLD
 121   while (waitpid(-1, NULL, WNOHANG) > 0);
 122
 123   otk::RenderColor::initialize();
 124   otk::RenderStyle::initialize();
 125   otk::Timer::initialize();
 126   otk::Property::initialize();
 127   _actions = new Actions();
 128   _bindings = new Bindings();
 129
 130   setMasterHandler(_actions); // set as the master event handler
 131
 132   // create the mouse cursors we'll use
 133   _cursors.session = XCreateFontCursor(**otk::display, XC_left_ptr);
 134   _cursors.move = XCreateFontCursor(**otk::display, XC_fleur);
 135   _cursors.ll_angle = XCreateFontCursor(**otk::display, XC_ll_angle);
 136   _cursors.lr_angle = XCreateFontCursor(**otk::display, XC_lr_angle);
 137   _cursors.ul_angle = XCreateFontCursor(**otk::display, XC_ul_angle);
 138   _cursors.ur_angle = XCreateFontCursor(**otk::display, XC_ur_angle);
 139
 140   // initialize scripting
 141   python_init(argv[0]);
 142
 143   // load config values
 144   //python_exec(SCRIPTDIR"/config.py"); // load openbox config values
 145   // run all of the python scripts
 146   //python_exec(SCRIPTDIR"/builtins.py"); // builtin callbacks
 147   //python_exec(SCRIPTDIR"/focus.py"); // focus helpers
 148   // run the user's script or the system defaults if that fails
 149   if (!python_exec(_scriptfilepath.c_str()))
 150     python_exec(SCRIPTDIR"/defaults.py"); // system default bahaviors
 151
 152   // initialize all the screens
 153   _focused_screen = 0;
 154
 155   for (int i = 0, max = ScreenCount(**otk::display); i < max; ++i) {
 156     Screen *screen;
 157     // in single mode skip the screens we don't want to manage
 158     if (_single && i != DefaultScreen(**otk::display)) {
 159       _screens.push_back(0);
 160       continue;
 161     }
 162     // try manage the screen
 163     screen = new Screen(i);
 164     if (screen->managed()) {
 165       _screens.push_back(screen);
 166       if (!_focused_screen) // set this to the first screen managed
 167         _focused_screen = screen;
 168     } else {
 169       delete screen;
 170       _screens.push_back(0);
 171     }
 172   }
 173
 174   assert(_focused_screen);
 175
 176   if (_screens.empty()) {
 177     printf(_("No screens were found without a window manager. Exiting.\n"));
 178     ::exit(1);
 179   }
 180
 181   ScreenList::iterator it, end = _screens.end();
 182   for (it = _screens.begin(); it != end; ++it) {
 183     (*it)->manageExisting();
 184   }
 185
 186   // grab any keys set up before the screens existed
 187   _bindings->grabKeys(true);
 188
 189   // set up input focus
 190   setFocusedClient(0);
 191
 192   _state = State_Normal; // done starting
 193 }
 194
 195
 196 Openbox::~Openbox()
 197 {
 198   _state = State_Exiting; // time to kill everything
 199
 200   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 201
 202   delete _bindings;
 203   delete _actions;
 204
 205   python_destroy();
 206
 207   XSetInputFocus(**otk::display, PointerRoot, RevertToNone,
 208                  CurrentTime);
 209   XSync(**otk::display, false);
 210
 211   // this tends to block.. i honestly am not sure why. causing an x error in
 212   // the shutdown process unblocks it. blackbox simply did a ::exit(0), so
 213   // all im gunna do is the same.
 214   //delete _display;
 215
 216   otk::Timer::destroy();
 217   otk::RenderStyle::destroy();
 218   otk::RenderColor::destroy();
 219 }
 220
 221
 222 void Openbox::parseCommandLine(int argc, char **argv)
 223 {
 224   bool err = false;
 225
 226   for (int i = 1; i < argc; ++i) {
 227     std::string arg(argv[i]);
 228
 229     if (arg == "-display") {
 230       if (++i >= argc)
 231         err = true;
 232       else
 233         _displayreq = argv[i];
 234     } else if (arg == "-rc") {
 235       if (++i >= argc)
 236         err = true;
 237       else
 238         _rcfilepath = argv[i];
 239     } else if (arg == "-menu") {
 240       if (++i >= argc)
 241         err = true;
 242       else
 243         _menufilepath = argv[i];
 244     } else if (arg == "-script") {
 245       if (++i >= argc)
 246         err = true;
 247       else
 248         _scriptfilepath = argv[i];
 249     } else if (arg == "-sync") {
 250       _sync = true;
 251     } else if (arg == "-single") {
 252       _single = true;
 253     } else if (arg == "-version") {
 254       showVersion();
 255       ::exit(0);
 256     } else if (arg == "-help") {
 257       showHelp();
 258       ::exit(0);
 259     } else
 260       err = true;
 261
 262     if (err) {
 263       showHelp();
 264       exit(1);
 265     }
 266   }
 267 }
 268
 269
 270 void Openbox::showVersion()
 271 {
 272   printf(_("Openbox - version %s\n"), VERSION);
 273   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 274 }
 275
 276
 277 void Openbox::showHelp()
 278 {
 279   showVersion(); // show the version string and copyright
 280
 281   // print program usage and command line options
 282   printf(_("Usage: %s [OPTIONS...]\n\
 283   Options:\n\
 284   -display <string>  use display connection.\n\
 285   -single            run on a single screen (default is to run every one).\n\
 286   -rc <string>       use alternate resource file.\n\
 287   -menu <string>     use alternate menu file.\n\
 288   -script <string>   use alternate startup script file.\n\
 289   -sync              run in synchronous mode (for debugging X errors).\n\
 290   -version           display version and exit.\n\
 291   -help              display this help text and exit.\n\n"), _argv[0]);
 292
 293   printf(_("Compile time options:\n\
 294   Debugging: %s\n\
 295   Shape:     %s\n\
 296   Xinerama:  %s\n\
 297   Xkb:       %s\n"),
 298 #ifdef    DEBUG
 299          _("yes"),
 300 #else // !DEBUG
 301          _("no"),
 302 #endif // DEBUG
 303
 304 #ifdef    SHAPE
 305          _("yes"),
 306 #else // !SHAPE
 307          _("no"),
 308 #endif // SHAPE
 309
 310 #ifdef    XINERAMA
 311          _("yes"),
 312 #else // !XINERAMA
 313          _("no"),
 314 #endif // XINERAMA
 315
 316 #ifdef    XKB
 317          _("yes")
 318 #else // !XKB
 319          _("no")
 320 #endif // XKB
 321     );
 322 }
 323
 324
 325 void Openbox::eventLoop()
 326 {
 327   while (true) {
 328     dispatchEvents(); // from otk::EventDispatcher
 329     XFlush(**otk::display); // flush here before we go wait for timers
 330     // don't wait if we're to shutdown
 331     if (_shutdown) break;
 332     otk::Timer::dispatchTimers(!_sync); // wait if not in sync mode
 333   }
 334 }
 335
 336
 337 void Openbox::addClient(Window window, Client *client)
 338 {
 339   _clients[window] = client;
 340 }
 341
 342
 343 void Openbox::removeClient(Window window)
 344 {
 345   _clients.erase(window);
 346 }
 347
 348
 349 Client *Openbox::findClient(Window window)
 350 {
 351   /*
 352     NOTE: we dont use _clients[] to find the value because that will insert
 353     a new null into the hash, which really sucks when we want to clean up the
 354     hash at shutdown!
 355   */
 356   ClientMap::iterator it = _clients.find(window);
 357   if (it != _clients.end())
 358     return it->second;
 359   else
 360     return (Client*) 0;
 361 }
 362
 363
 364 void Openbox::setFocusedClient(Client *c)
 365 {
 366   // sometimes this is called with the already-focused window, this is
 367   // important for the python scripts to work (eg, c = 0 twice). don't just
 368   // return if _focused_client == c
 369
 370   assert(_focused_screen);
 371
 372   // uninstall the old colormap
 373   if (_focused_client)
 374     _focused_client->installColormap(false);
 375   else
 376     _focused_screen->installColormap(false);
 377
 378   _focused_client = c;
 379   if (c) {
 380     _focused_screen = _screens[c->screen()];
 381
 382     // install the client's colormap
 383     c->installColormap(true);
 384   } else {
 385     XSetInputFocus(**otk::display, _focused_screen->focuswindow(),
 386                    RevertToNone, CurrentTime);
 387
 388     // install the root window colormap
 389     _focused_screen->installColormap(true);
 390   }
 391   // set the NET_ACTIVE_WINDOW hint for all screens
 392   ScreenList::iterator it, end = _screens.end();
 393   for (it = _screens.begin(); it != end; ++it) {
 394     int num = (*it)->number();
 395     Window root = otk::display->screenInfo(num)->rootWindow();
 396     otk::Property::set(root, otk::Property::atoms.net_active_window,
 397                        otk::Property::atoms.window,
 398                        (c && _focused_screen == *it) ? c->window() : None);
 399   }
 400
 401   // call the python Focus callbacks
 402   EventData data(_focused_screen->number(), c, EventAction::Focus, 0);
 403   _bindings->fireEvent(&data);
 404 }
 405
 406 }
 407