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 "../version.h"
   8 #include "openbox.hh"
   9 #include "client.hh"
  10 #include "screen.hh"
  11 #include "actions.hh"
  12 #include "bindings.hh"
  13 #include "python.hh"
  14 #include "otk/property.hh"
  15 #include "otk/display.hh"
  16 #include "otk/assassin.hh"
  17 #include "otk/util.hh" // TEMPORARY
  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_UNISTD_H
  39 #  include <sys/types.h>
  40 #  include <unistd.h>
  41 #endif // HAVE_UNISTD_H
  42
  43 #ifdef    HAVE_SYS_SELECT_H
  44 #  include <sys/select.h>
  45 #endif // HAVE_SYS_SELECT_H
  46
  47 #include "gettext.h"
  48 #define _(str) gettext(str)
  49 }
  50
  51 #include <algorithm>
  52
  53 namespace ob {
  54
  55 Openbox *Openbox::instance  = (Openbox *) 0;
  56
  57
  58 void Openbox::signalHandler(int signal)
  59 {
  60   switch (signal) {
  61   case SIGUSR1:
  62     printf("Caught SIGUSR1 signal. Restarting.\n");
  63     instance->restart();
  64     break;
  65
  66   case SIGHUP:
  67   case SIGINT:
  68   case SIGTERM:
  69   case SIGPIPE:
  70     printf("Caught signal %d. Exiting.\n", signal);
  71     instance->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::OtkEventDispatcher(),
  84     otk::OtkEventHandler()
  85 {
  86   struct sigaction action;
  87
  88   _state = State_Starting; // initializing everything
  89
  90   Openbox::instance = 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
 101   parseCommandLine(argc, argv);
 102
 103   // open the X display (and gets some info about it, and its screens)
 104   otk::OBDisplay::initialize(_displayreq);
 105   assert(otk::OBDisplay::display);
 106
 107   XSynchronize(otk::OBDisplay::display, _sync);
 108
 109   // set up the signal handler
 110   action.sa_handler = Openbox::signalHandler;
 111   action.sa_mask = sigset_t();
 112   action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
 113   sigaction(SIGUSR1, &action, (struct sigaction *) 0);
 114   sigaction(SIGPIPE, &action, (struct sigaction *) 0);
 115   sigaction(SIGSEGV, &action, (struct sigaction *) 0);
 116   sigaction(SIGFPE, &action, (struct sigaction *) 0);
 117   sigaction(SIGTERM, &action, (struct sigaction *) 0);
 118   sigaction(SIGINT, &action, (struct sigaction *) 0);
 119   sigaction(SIGHUP, &action, (struct sigaction *) 0);
 120
 121   _property = new otk::OBProperty();
 122   _actions = new OBActions();
 123   _bindings = new OBBindings();
 124
 125   setMasterHandler(_actions); // set as the master event handler
 126
 127   // create the mouse cursors we'll use
 128   _cursors.session = XCreateFontCursor(otk::OBDisplay::display, XC_left_ptr);
 129   _cursors.move = XCreateFontCursor(otk::OBDisplay::display, XC_fleur);
 130   _cursors.ll_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ll_angle);
 131   _cursors.lr_angle = XCreateFontCursor(otk::OBDisplay::display, XC_lr_angle);
 132   _cursors.ul_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ul_angle);
 133   _cursors.ur_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ur_angle);
 134
 135   // initialize scripting
 136   python_init(argv[0]);
 137
 138   // load config values
 139   python_exec(SCRIPTDIR"/config.py"); // load openbox config values
 140   // run all of the python scripts
 141   python_exec(SCRIPTDIR"/builtins.py"); // builtin callbacks
 142   // run the user's script
 143   python_exec(_scriptfilepath.c_str());
 144
 145   // initialize all the screens
 146   OBScreen *screen;
 147   screen = new OBScreen(0);
 148   if (screen->managed()) {
 149     _screens.push_back(screen);
 150     // XXX: "change to" the first workspace on the screen to initialize stuff
 151   } else
 152     delete screen;
 153
 154   if (_screens.empty()) {
 155     printf(_("No screens were found without a window manager. Exiting.\n"));
 156     ::exit(1);
 157   }
 158
 159   ScreenList::iterator it, end = _screens.end();
 160   for (it = _screens.begin(); it != end; ++it) {
 161     (*it)->manageExisting();
 162   }
 163
 164   // grab any keys set up before the screens existed
 165   _bindings->grabKeys(true);
 166
 167   // set up input focus
 168   _focused_screen = _screens[0];
 169   setFocusedClient(0);
 170
 171   _state = State_Normal; // done starting
 172 }
 173
 174
 175 Openbox::~Openbox()
 176 {
 177   _state = State_Exiting; // time to kill everything
 178
 179   int first_screen = _screens.front()->number();
 180
 181   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 182
 183   delete _bindings;
 184   delete _actions;
 185   delete _property;
 186
 187   python_destroy();
 188
 189   XSetInputFocus(otk::OBDisplay::display, PointerRoot, RevertToNone,
 190                  CurrentTime);
 191   XSync(otk::OBDisplay::display, false);
 192
 193   // this tends to block.. i honestly am not sure why. causing an x error in
 194   // the shutdown process unblocks it. blackbox simply did a ::exit(0), so
 195   // all im gunna do is the same.
 196   //otk::OBDisplay::destroy();
 197
 198   if (_restart) {
 199     if (!_restart_prog.empty()) {
 200       const std::string &dstr =
 201         otk::OBDisplay::screenInfo(first_screen)->displayString();
 202       putenv(const_cast<char *>(dstr.c_str()));
 203       execlp(_restart_prog.c_str(), _restart_prog.c_str(), NULL);
 204       perror(_restart_prog.c_str());
 205     }
 206
 207     // fall back in case the above execlp doesn't work
 208     execvp(_argv[0], _argv);
 209     execvp(otk::basename(_argv[0]).c_str(), _argv);
 210   }
 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 == "-version") {
 244       showVersion();
 245       ::exit(0);
 246     } else if (arg == "-help") {
 247       showHelp();
 248       ::exit(0);
 249     } else
 250       err = true;
 251
 252     if (err) {
 253       showHelp();
 254       exit(1);
 255     }
 256   }
 257 }
 258
 259
 260 void Openbox::showVersion()
 261 {
 262   printf(_("Openbox - version %s\n"), OPENBOX_VERSION);
 263   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 264 }
 265
 266
 267 void Openbox::showHelp()
 268 {
 269   showVersion(); // show the version string and copyright
 270
 271   // print program usage and command line options
 272   printf(_("Usage: %s [OPTIONS...]\n\
 273   Options:\n\
 274   -display <string>  use display connection.\n\
 275   -rc <string>       use alternate resource file.\n\
 276   -menu <string>     use alternate menu file.\n\
 277   -script <string>   use alternate startup script file.\n\
 278   -version           display version and exit.\n\
 279   -help              display this help text and exit.\n\n"), _argv[0]);
 280
 281   printf(_("Compile time options:\n\
 282   Debugging: %s\n\
 283   Shape:     %s\n\
 284   Xinerama:  %s\n"),
 285 #ifdef    DEBUG
 286          _("yes"),
 287 #else // !DEBUG
 288          _("no"),
 289 #endif // DEBUG
 290
 291 #ifdef    SHAPE
 292          _("yes"),
 293 #else // !SHAPE
 294          _("no"),
 295 #endif // SHAPE
 296
 297 #ifdef    XINERAMA
 298          _("yes")
 299 #else // !XINERAMA
 300          _("no")
 301 #endif // XINERAMA
 302     );
 303 }
 304
 305
 306 void Openbox::eventLoop()
 307 {
 308   while (!_shutdown) {
 309     _timermanager.fire();
 310     dispatchEvents(); // from OtkEventDispatcher
 311     XFlush(otk::OBDisplay::display); // flush here before we go wait for timers
 312   }
 313 }
 314
 315
 316 void Openbox::addClient(Window window, OBClient *client)
 317 {
 318   _clients[window] = client;
 319 }
 320
 321
 322 void Openbox::removeClient(Window window)
 323 {
 324   _clients.erase(window);
 325 }
 326
 327
 328 OBClient *Openbox::findClient(Window window)
 329 {
 330   /*
 331     NOTE: we dont use _clients[] to find the value because that will insert
 332     a new null into the hash, which really sucks when we want to clean up the
 333     hash at shutdown!
 334   */
 335   ClientMap::iterator it = _clients.find(window);
 336   if (it != _clients.end())
 337     return it->second;
 338   else
 339     return (OBClient*) 0;
 340 }
 341
 342
 343 void Openbox::setFocusedClient(OBClient *c)
 344 {
 345   _focused_client = c;
 346   if (c) {
 347     _focused_screen = _screens[c->screen()];
 348   } else {
 349     assert(_focused_screen);
 350     XSetInputFocus(otk::OBDisplay::display, _focused_screen->focuswindow(),
 351                    RevertToNone, CurrentTime);
 352   }
 353   // set the NET_ACTIVE_WINDOW hint for all screens
 354   ScreenList::iterator it, end = _screens.end();
 355   for (it = _screens.begin(); it != end; ++it) {
 356     int num = (*it)->number();
 357     Window root = otk::OBDisplay::screenInfo(num)->rootWindow();
 358     _property->set(root, otk::OBProperty::net_active_window,
 359                    otk::OBProperty::Atom_Window,
 360                    (c && _focused_screen == *it) ? c->window() : None);
 361   }
 362 }
 363
 364 void Openbox::execute(int screen, const std::string &bin)
 365 {
 366 #ifdef    __EMX__
 367   // XXX: whats this for? windows?
 368   spawnlp(P_NOWAIT, "cmd.exe", "cmd.exe", "/c", bin.c_str(), NULL);
 369 #else //  __EMX__
 370   if (screen >= ScreenCount(otk::OBDisplay::display))
 371     screen = 0;
 372   const std::string &dstr =
 373     otk::OBDisplay::screenInfo(screen)->displayString();
 374
 375   if (! fork()) {
 376       setsid();
 377       int ret = putenv(const_cast<char *>(dstr.c_str()));
 378       assert(ret != -1);
 379       ret = execl("/bin/sh", "/bin/sh", "-c", bin.c_str(), NULL);
 380       exit(ret);
 381     }
 382 #endif // __EMX__
 383 }
 384
 385 }
 386