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