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 SIGHUP:
  62     printf("Caught HUP signal. Restarting.\n");
  63     instance->restart();
  64     break;
  65
  66   case SIGINT:
  67   case SIGTERM:
  68   case SIGPIPE:
  69     printf("Caught signal %d. Exiting.\n", signal);
  70     instance->shutdown();
  71     break;
  72   case SIGFPE:
  73   case SIGSEGV:
  74     printf("Caught signal %d. Aborting and dumping core.\n", signal);
  75     abort();
  76   }
  77 }
  78
  79
  80 Openbox::Openbox(int argc, char **argv)
  81   : otk::OtkEventDispatcher(),
  82     otk::OtkEventHandler()
  83 {
  84   struct sigaction action;
  85
  86   _state = State_Starting; // initializing everything
  87
  88   Openbox::instance = this;
  89
  90   _displayreq = (char*) 0;
  91   _argv = argv;
  92   _shutdown = false;
  93   _restart = false;
  94   _rcfilepath = otk::expandTilde("~/.openbox/rc3");
  95   _scriptfilepath = otk::expandTilde("~/.openbox/user.py");
  96   _focused_client = 0;
  97   _sync = false;
  98
  99   parseCommandLine(argc, argv);
 100
 101   // open the X display (and gets some info about it, and its screens)
 102   otk::OBDisplay::initialize(_displayreq);
 103   assert(otk::OBDisplay::display);
 104
 105   XSynchronize(otk::OBDisplay::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(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
 118   _property = new otk::OBProperty();
 119   _actions = new OBActions();
 120   _bindings = new OBBindings();
 121
 122   setMasterHandler(_actions); // set as the master event handler
 123
 124   // create the mouse cursors we'll use
 125   _cursors.session = XCreateFontCursor(otk::OBDisplay::display, XC_left_ptr);
 126   _cursors.move = XCreateFontCursor(otk::OBDisplay::display, XC_fleur);
 127   _cursors.ll_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ll_angle);
 128   _cursors.lr_angle = XCreateFontCursor(otk::OBDisplay::display, XC_lr_angle);
 129   _cursors.ul_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ul_angle);
 130   _cursors.ur_angle = XCreateFontCursor(otk::OBDisplay::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   // run the user's script
 140   python_exec(_scriptfilepath.c_str());
 141
 142   // initialize all the screens
 143   OBScreen *screen;
 144   screen = new OBScreen(0);
 145   if (screen->managed()) {
 146     _screens.push_back(screen);
 147     // XXX: "change to" the first workspace on the screen to initialize stuff
 148   } else
 149     delete screen;
 150
 151   if (_screens.empty()) {
 152     printf(_("No screens were found without a window manager. Exiting.\n"));
 153     ::exit(1);
 154   }
 155
 156   ScreenList::iterator it, end = _screens.end();
 157   for (it = _screens.begin(); it != end; ++it) {
 158     (*it)->manageExisting();
 159   }
 160
 161   // grab any keys set up before the screens existed
 162   _bindings->grabKeys(true);
 163
 164   // set up input focus
 165   _focused_screen = _screens[0];
 166   setFocusedClient(0);
 167
 168   _state = State_Normal; // done starting
 169 }
 170
 171
 172 Openbox::~Openbox()
 173 {
 174   _state = State_Exiting; // time to kill everything
 175
 176   int first_screen = _screens.front()->number();
 177
 178   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 179
 180   delete _bindings;
 181   delete _actions;
 182   delete _property;
 183
 184   python_destroy();
 185
 186   XSetInputFocus(otk::OBDisplay::display, PointerRoot, RevertToNone,
 187                  CurrentTime);
 188   XSync(otk::OBDisplay::display, false);
 189
 190   // this tends to block.. i honestly am not sure why. causing an x error in
 191   // the shutdown process unblocks it. blackbox simply did a ::exit(0), so
 192   // all im gunna do is the same.
 193   //otk::OBDisplay::destroy();
 194
 195   if (_restart) {
 196     if (!_restart_prog.empty()) {
 197       const std::string &dstr =
 198         otk::OBDisplay::screenInfo(first_screen)->displayString();
 199       putenv(const_cast<char *>(dstr.c_str()));
 200       execlp(_restart_prog.c_str(), _restart_prog.c_str(), NULL);
 201       perror(_restart_prog.c_str());
 202     }
 203
 204     // fall back in case the above execlp doesn't work
 205     execvp(_argv[0], _argv);
 206     execvp(otk::basename(_argv[0]).c_str(), _argv);
 207   }
 208 }
 209
 210
 211 void Openbox::parseCommandLine(int argc, char **argv)
 212 {
 213   bool err = false;
 214
 215   for (int i = 1; i < argc; ++i) {
 216     std::string arg(argv[i]);
 217
 218     if (arg == "-display") {
 219       if (++i >= argc)
 220         err = true;
 221       else
 222         _displayreq = argv[i];
 223     } else if (arg == "-rc") {
 224       if (++i >= argc)
 225         err = true;
 226       else
 227         _rcfilepath = argv[i];
 228     } else if (arg == "-menu") {
 229       if (++i >= argc)
 230         err = true;
 231       else
 232         _menufilepath = argv[i];
 233     } else if (arg == "-script") {
 234       if (++i >= argc)
 235         err = true;
 236       else
 237         _scriptfilepath = argv[i];
 238     } else if (arg == "-sync") {
 239       _sync = true;
 240     } else if (arg == "-version") {
 241       showVersion();
 242       ::exit(0);
 243     } else if (arg == "-help") {
 244       showHelp();
 245       ::exit(0);
 246     } else
 247       err = true;
 248
 249     if (err) {
 250       showHelp();
 251       exit(1);
 252     }
 253   }
 254 }
 255
 256
 257 void Openbox::showVersion()
 258 {
 259   printf(_("Openbox - version %s\n"), OPENBOX_VERSION);
 260   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 261 }
 262
 263
 264 void Openbox::showHelp()
 265 {
 266   showVersion(); // show the version string and copyright
 267
 268   // print program usage and command line options
 269   printf(_("Usage: %s [OPTIONS...]\n\
 270   Options:\n\
 271   -display <string>  use display connection.\n\
 272   -rc <string>       use alternate resource file.\n\
 273   -menu <string>     use alternate menu file.\n\
 274   -script <string>   use alternate startup script file.\n\
 275   -version           display version and exit.\n\
 276   -help              display this help text and exit.\n\n"), _argv[0]);
 277
 278   printf(_("Compile time options:\n\
 279   Debugging: %s\n\
 280   Shape:     %s\n\
 281   Xinerama:  %s\n"),
 282 #ifdef    DEBUG
 283          _("yes"),
 284 #else // !DEBUG
 285          _("no"),
 286 #endif // DEBUG
 287
 288 #ifdef    SHAPE
 289          _("yes"),
 290 #else // !SHAPE
 291          _("no"),
 292 #endif // SHAPE
 293
 294 #ifdef    XINERAMA
 295          _("yes")
 296 #else // !XINERAMA
 297          _("no")
 298 #endif // XINERAMA
 299     );
 300 }
 301
 302
 303 void Openbox::eventLoop()
 304 {
 305   while (!_shutdown) {
 306     _timermanager.fire();
 307     dispatchEvents(); // from OtkEventDispatcher
 308     XFlush(otk::OBDisplay::display); // flush here before we go wait for timers
 309   }
 310 }
 311
 312
 313 void Openbox::addClient(Window window, OBClient *client)
 314 {
 315   _clients[window] = client;
 316 }
 317
 318
 319 void Openbox::removeClient(Window window)
 320 {
 321   _clients.erase(window);
 322 }
 323
 324
 325 OBClient *Openbox::findClient(Window window)
 326 {
 327   /*
 328     NOTE: we dont use _clients[] to find the value because that will insert
 329     a new null into the hash, which really sucks when we want to clean up the
 330     hash at shutdown!
 331   */
 332   ClientMap::iterator it = _clients.find(window);
 333   if (it != _clients.end())
 334     return it->second;
 335   else
 336     return (OBClient*) 0;
 337 }
 338
 339
 340 void Openbox::setFocusedClient(OBClient *c)
 341 {
 342   _focused_client = c;
 343   if (c) {
 344     _focused_screen = _screens[c->screen()];
 345   } else {
 346     assert(_focused_screen);
 347     XSetInputFocus(otk::OBDisplay::display, _focused_screen->focuswindow(),
 348                    RevertToNone, CurrentTime);
 349   }
 350   // set the NET_ACTIVE_WINDOW hint for all screens
 351   ScreenList::iterator it, end = _screens.end();
 352   for (it = _screens.begin(); it != end; ++it) {
 353     int num = (*it)->number();
 354     Window root = otk::OBDisplay::screenInfo(num)->rootWindow();
 355     _property->set(root, otk::OBProperty::net_active_window,
 356                    otk::OBProperty::Atom_Window,
 357                    (c && _focused_screen == *it) ? c->window() : None);
 358   }
 359 }
 360
 361 void Openbox::execute(int screen, const std::string &bin)
 362 {
 363 #ifdef    __EMX__
 364   // XXX: whats this for? windows?
 365   spawnlp(P_NOWAIT, "cmd.exe", "cmd.exe", "/c", bin.c_str(), NULL);
 366 #else //  __EMX__
 367   if (screen >= ScreenCount(otk::OBDisplay::display))
 368     screen = 0;
 369   const std::string &dstr =
 370     otk::OBDisplay::screenInfo(screen)->displayString();
 371
 372   if (! fork()) {
 373       setsid();
 374       int ret = putenv(const_cast<char *>(dstr.c_str()));
 375       assert(ret != -1);
 376       ret = execl("/bin/sh", "/bin/sh", "-c", bin.c_str(), NULL);
 377       exit(ret);
 378     }
 379 #endif // __EMX__
 380 }
 381
 382 }
 383