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   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::OtkEventDispatcher(),
  83     otk::OtkEventHandler()
  84 {
  85   struct sigaction action;
  86
  87   _state = State_Starting; // initializing everything
  88
  89   Openbox::instance = this;
  90
  91   _displayreq = (char*) 0;
  92   _argv = argv;
  93   _shutdown = false;
  94   _restart = false;
  95   _rcfilepath = otk::expandTilde("~/.openbox/rc3");
  96   _scriptfilepath = otk::expandTilde("~/.openbox/user.py");
  97   _focused_client = 0;
  98   _sync = false;
  99
 100   parseCommandLine(argc, argv);
 101
 102   // open the X display (and gets some info about it, and its screens)
 103   otk::OBDisplay::initialize(_displayreq);
 104   assert(otk::OBDisplay::display);
 105
 106   XSynchronize(otk::OBDisplay::display, _sync);
 107
 108   // set up the signal handler
 109   action.sa_handler = Openbox::signalHandler;
 110   action.sa_mask = sigset_t();
 111   action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
 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
 119   _property = new otk::OBProperty();
 120   _actions = new OBActions();
 121   _bindings = new OBBindings();
 122
 123   setMasterHandler(_actions); // set as the master event handler
 124
 125   // create the mouse cursors we'll use
 126   _cursors.session = XCreateFontCursor(otk::OBDisplay::display, XC_left_ptr);
 127   _cursors.move = XCreateFontCursor(otk::OBDisplay::display, XC_fleur);
 128   _cursors.ll_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ll_angle);
 129   _cursors.lr_angle = XCreateFontCursor(otk::OBDisplay::display, XC_lr_angle);
 130   _cursors.ul_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ul_angle);
 131   _cursors.ur_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ur_angle);
 132
 133   // initialize scripting
 134   python_init(argv[0]);
 135
 136   // load config values
 137   python_exec(SCRIPTDIR"/config.py"); // load openbox config values
 138   // run all of the python scripts
 139   python_exec(SCRIPTDIR"/builtins.py"); // builtin callbacks
 140   // run the user's script
 141   python_exec(_scriptfilepath.c_str());
 142
 143   // initialize all the screens
 144   OBScreen *screen;
 145   screen = new OBScreen(0);
 146   if (screen->managed()) {
 147     _screens.push_back(screen);
 148     // XXX: "change to" the first workspace on the screen to initialize stuff
 149   } else
 150     delete screen;
 151
 152   if (_screens.empty()) {
 153     printf(_("No screens were found without a window manager. Exiting.\n"));
 154     ::exit(1);
 155   }
 156
 157   ScreenList::iterator it, end = _screens.end();
 158   for (it = _screens.begin(); it != end; ++it) {
 159     (*it)->manageExisting();
 160   }
 161
 162   // grab any keys set up before the screens existed
 163   _bindings->grabKeys(true);
 164
 165   // set up input focus
 166   _focused_screen = _screens[0];
 167   setFocusedClient(0);
 168
 169   _state = State_Normal; // done starting
 170 }
 171
 172
 173 Openbox::~Openbox()
 174 {
 175   _state = State_Exiting; // time to kill everything
 176
 177   int first_screen = _screens.front()->number();
 178
 179   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 180
 181   delete _bindings;
 182   delete _actions;
 183   delete _property;
 184
 185   python_destroy();
 186
 187   XSetInputFocus(otk::OBDisplay::display, PointerRoot, RevertToNone,
 188                  CurrentTime);
 189   XSync(otk::OBDisplay::display, false);
 190
 191   // this tends to block.. i honestly am not sure why. causing an x error in
 192   // the shutdown process unblocks it. blackbox simply did a ::exit(0), so
 193   // all im gunna do is the same.
 194   //otk::OBDisplay::destroy();
 195
 196   if (_restart) {
 197     if (!_restart_prog.empty()) {
 198       const std::string &dstr =
 199         otk::OBDisplay::screenInfo(first_screen)->displayString();
 200       putenv(const_cast<char *>(dstr.c_str()));
 201       execlp(_restart_prog.c_str(), _restart_prog.c_str(), NULL);
 202       perror(_restart_prog.c_str());
 203     }
 204
 205     // fall back in case the above execlp doesn't work
 206     execvp(_argv[0], _argv);
 207     execvp(otk::basename(_argv[0]).c_str(), _argv);
 208   }
 209 }
 210
 211
 212 void Openbox::parseCommandLine(int argc, char **argv)
 213 {
 214   bool err = false;
 215
 216   for (int i = 1; i < argc; ++i) {
 217     std::string arg(argv[i]);
 218
 219     if (arg == "-display") {
 220       if (++i >= argc)
 221         err = true;
 222       else
 223         _displayreq = argv[i];
 224     } else if (arg == "-rc") {
 225       if (++i >= argc)
 226         err = true;
 227       else
 228         _rcfilepath = argv[i];
 229     } else if (arg == "-menu") {
 230       if (++i >= argc)
 231         err = true;
 232       else
 233         _menufilepath = argv[i];
 234     } else if (arg == "-script") {
 235       if (++i >= argc)
 236         err = true;
 237       else
 238         _scriptfilepath = argv[i];
 239     } else if (arg == "-sync") {
 240       _sync = true;
 241     } else if (arg == "-version") {
 242       showVersion();
 243       ::exit(0);
 244     } else if (arg == "-help") {
 245       showHelp();
 246       ::exit(0);
 247     } else
 248       err = true;
 249
 250     if (err) {
 251       showHelp();
 252       exit(1);
 253     }
 254   }
 255 }
 256
 257
 258 void Openbox::showVersion()
 259 {
 260   printf(_("Openbox - version %s\n"), OPENBOX_VERSION);
 261   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 262 }
 263
 264
 265 void Openbox::showHelp()
 266 {
 267   showVersion(); // show the version string and copyright
 268
 269   // print program usage and command line options
 270   printf(_("Usage: %s [OPTIONS...]\n\
 271   Options:\n\
 272   -display <string>  use display connection.\n\
 273   -rc <string>       use alternate resource file.\n\
 274   -menu <string>     use alternate menu file.\n\
 275   -script <string>   use alternate startup script file.\n\
 276   -version           display version and exit.\n\
 277   -help              display this help text and exit.\n\n"), _argv[0]);
 278
 279   printf(_("Compile time options:\n\
 280   Debugging: %s\n\
 281   Shape:     %s\n\
 282   Xinerama:  %s\n"),
 283 #ifdef    DEBUG
 284          _("yes"),
 285 #else // !DEBUG
 286          _("no"),
 287 #endif // DEBUG
 288
 289 #ifdef    SHAPE
 290          _("yes"),
 291 #else // !SHAPE
 292          _("no"),
 293 #endif // SHAPE
 294
 295 #ifdef    XINERAMA
 296          _("yes")
 297 #else // !XINERAMA
 298          _("no")
 299 #endif // XINERAMA
 300     );
 301 }
 302
 303
 304 void Openbox::eventLoop()
 305 {
 306   while (!_shutdown) {
 307     _timermanager.fire();
 308     dispatchEvents(); // from OtkEventDispatcher
 309     XFlush(otk::OBDisplay::display); // flush here before we go wait for timers
 310   }
 311 }
 312
 313
 314 void Openbox::addClient(Window window, OBClient *client)
 315 {
 316   _clients[window] = client;
 317 }
 318
 319
 320 void Openbox::removeClient(Window window)
 321 {
 322   _clients.erase(window);
 323 }
 324
 325
 326 OBClient *Openbox::findClient(Window window)
 327 {
 328   /*
 329     NOTE: we dont use _clients[] to find the value because that will insert
 330     a new null into the hash, which really sucks when we want to clean up the
 331     hash at shutdown!
 332   */
 333   ClientMap::iterator it = _clients.find(window);
 334   if (it != _clients.end())
 335     return it->second;
 336   else
 337     return (OBClient*) 0;
 338 }
 339
 340
 341 void Openbox::setFocusedClient(OBClient *c)
 342 {
 343   _focused_client = c;
 344   if (c) {
 345     _focused_screen = _screens[c->screen()];
 346   } else {
 347     assert(_focused_screen);
 348     XSetInputFocus(otk::OBDisplay::display, _focused_screen->focuswindow(),
 349                    RevertToNone, CurrentTime);
 350   }
 351   // set the NET_ACTIVE_WINDOW hint for all screens
 352   ScreenList::iterator it, end = _screens.end();
 353   for (it = _screens.begin(); it != end; ++it) {
 354     int num = (*it)->number();
 355     Window root = otk::OBDisplay::screenInfo(num)->rootWindow();
 356     _property->set(root, otk::OBProperty::net_active_window,
 357                    otk::OBProperty::Atom_Window,
 358                    (c && _focused_screen == *it) ? c->window() : None);
 359   }
 360 }
 361
 362 void Openbox::execute(int screen, const std::string &bin)
 363 {
 364 #ifdef    __EMX__
 365   // XXX: whats this for? windows?
 366   spawnlp(P_NOWAIT, "cmd.exe", "cmd.exe", "/c", bin.c_str(), NULL);
 367 #else //  __EMX__
 368   if (screen >= ScreenCount(otk::OBDisplay::display))
 369     screen = 0;
 370   const std::string &dstr =
 371     otk::OBDisplay::screenInfo(screen)->displayString();
 372
 373   if (! fork()) {
 374       setsid();
 375       int ret = putenv(const_cast<char *>(dstr.c_str()));
 376       assert(ret != -1);
 377       ret = execl("/bin/sh", "/bin/sh", "-c", bin.c_str(), NULL);
 378       exit(ret);
 379     }
 380 #endif // __EMX__
 381 }
 382
 383 }
 384