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     // XXX: Do something with HUP? Really shouldn't, we get this when X shuts
  63     //      down and hangs-up on us. we also get a SIGPIPE.
  64     printf("Caught HUP signal. Restarting.\n");
  65     instance->restart();
  66     break;
  67
  68   case SIGINT:
  69   case SIGTERM:
  70   case SIGPIPE:
  71     printf("Caught signal %d. Exiting.\n", signal);
  72     instance->shutdown();
  73     break;
  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(SIGPIPE, &action, (struct sigaction *) 0);
 114   sigaction(SIGSEGV, &action, (struct sigaction *) 0);
 115   sigaction(SIGFPE, &action, (struct sigaction *) 0);
 116   sigaction(SIGTERM, &action, (struct sigaction *) 0);
 117   sigaction(SIGINT, &action, (struct sigaction *) 0);
 118   sigaction(SIGHUP, &action, (struct sigaction *) 0);
 119
 120   _property = new otk::OBProperty();
 121   _actions = new OBActions();
 122   _bindings = new OBBindings();
 123
 124   setMasterHandler(_actions); // set as the master event handler
 125
 126   // create the mouse cursors we'll use
 127   _cursors.session = XCreateFontCursor(otk::OBDisplay::display, XC_left_ptr);
 128   _cursors.move = XCreateFontCursor(otk::OBDisplay::display, XC_fleur);
 129   _cursors.ll_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ll_angle);
 130   _cursors.lr_angle = XCreateFontCursor(otk::OBDisplay::display, XC_lr_angle);
 131   _cursors.ul_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ul_angle);
 132   _cursors.ur_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ur_angle);
 133
 134   // initialize scripting
 135   python_init(argv[0]);
 136
 137   // load config values
 138   python_exec(SCRIPTDIR"/config.py"); // load openbox config values
 139   // run all of the python scripts
 140   python_exec(SCRIPTDIR"/builtins.py"); // builtin callbacks
 141   // run the user's script
 142   python_exec(_scriptfilepath.c_str());
 143
 144   // initialize all the screens
 145   OBScreen *screen;
 146   screen = new OBScreen(0);
 147   if (screen->managed()) {
 148     _screens.push_back(screen);
 149     // XXX: "change to" the first workspace on the screen to initialize stuff
 150   } else
 151     delete screen;
 152
 153   if (_screens.empty()) {
 154     printf(_("No screens were found without a window manager. Exiting.\n"));
 155     ::exit(1);
 156   }
 157
 158   ScreenList::iterator it, end = _screens.end();
 159   for (it = _screens.begin(); it != end; ++it) {
 160     (*it)->manageExisting();
 161   }
 162
 163   // grab any keys set up before the screens existed
 164   _bindings->grabKeys(true);
 165
 166   // set up input focus
 167   _focused_screen = _screens[0];
 168   setFocusedClient(0);
 169
 170   _state = State_Normal; // done starting
 171 }
 172
 173
 174 Openbox::~Openbox()
 175 {
 176   _state = State_Exiting; // time to kill everything
 177
 178   int first_screen = _screens.front()->number();
 179
 180   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 181
 182   delete _bindings;
 183   delete _actions;
 184   delete _property;
 185
 186   python_destroy();
 187
 188   XSetInputFocus(otk::OBDisplay::display, PointerRoot, RevertToNone,
 189                  CurrentTime);
 190   XSync(otk::OBDisplay::display, false);
 191
 192   // this tends to block.. i honestly am not sure why. causing an x error in
 193   // the shutdown process unblocks it. blackbox simply did a ::exit(0), so
 194   // all im gunna do is the same.
 195   //otk::OBDisplay::destroy();
 196
 197   if (_restart) {
 198     if (!_restart_prog.empty()) {
 199       const std::string &dstr =
 200         otk::OBDisplay::screenInfo(first_screen)->displayString();
 201       putenv(const_cast<char *>(dstr.c_str()));
 202       execlp(_restart_prog.c_str(), _restart_prog.c_str(), NULL);
 203       perror(_restart_prog.c_str());
 204     }
 205
 206     // fall back in case the above execlp doesn't work
 207     execvp(_argv[0], _argv);
 208     execvp(otk::basename(_argv[0]).c_str(), _argv);
 209   }
 210 }
 211
 212
 213 void Openbox::parseCommandLine(int argc, char **argv)
 214 {
 215   bool err = false;
 216
 217   for (int i = 1; i < argc; ++i) {
 218     std::string arg(argv[i]);
 219
 220     if (arg == "-display") {
 221       if (++i >= argc)
 222         err = true;
 223       else
 224         _displayreq = argv[i];
 225     } else if (arg == "-rc") {
 226       if (++i >= argc)
 227         err = true;
 228       else
 229         _rcfilepath = argv[i];
 230     } else if (arg == "-menu") {
 231       if (++i >= argc)
 232         err = true;
 233       else
 234         _menufilepath = argv[i];
 235     } else if (arg == "-script") {
 236       if (++i >= argc)
 237         err = true;
 238       else
 239         _scriptfilepath = argv[i];
 240     } else if (arg == "-sync") {
 241       _sync = true;
 242     } else if (arg == "-version") {
 243       showVersion();
 244       ::exit(0);
 245     } else if (arg == "-help") {
 246       showHelp();
 247       ::exit(0);
 248     } else
 249       err = true;
 250
 251     if (err) {
 252       showHelp();
 253       exit(1);
 254     }
 255   }
 256 }
 257
 258
 259 void Openbox::showVersion()
 260 {
 261   printf(_("Openbox - version %s\n"), OPENBOX_VERSION);
 262   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 263 }
 264
 265
 266 void Openbox::showHelp()
 267 {
 268   showVersion(); // show the version string and copyright
 269
 270   // print program usage and command line options
 271   printf(_("Usage: %s [OPTIONS...]\n\
 272   Options:\n\
 273   -display <string>  use display connection.\n\
 274   -rc <string>       use alternate resource file.\n\
 275   -menu <string>     use alternate menu file.\n\
 276   -script <string>   use alternate startup script file.\n\
 277   -version           display version and exit.\n\
 278   -help              display this help text and exit.\n\n"), _argv[0]);
 279
 280   printf(_("Compile time options:\n\
 281   Debugging: %s\n\
 282   Shape:     %s\n\
 283   Xinerama:  %s\n"),
 284 #ifdef    DEBUG
 285          _("yes"),
 286 #else // !DEBUG
 287          _("no"),
 288 #endif // DEBUG
 289
 290 #ifdef    SHAPE
 291          _("yes"),
 292 #else // !SHAPE
 293          _("no"),
 294 #endif // SHAPE
 295
 296 #ifdef    XINERAMA
 297          _("yes")
 298 #else // !XINERAMA
 299          _("no")
 300 #endif // XINERAMA
 301     );
 302 }
 303
 304
 305 void Openbox::eventLoop()
 306 {
 307   while (!_shutdown) {
 308     _timermanager.fire();
 309     dispatchEvents(); // from OtkEventDispatcher
 310     XFlush(otk::OBDisplay::display); // flush here before we go wait for timers
 311   }
 312 }
 313
 314
 315 void Openbox::addClient(Window window, OBClient *client)
 316 {
 317   _clients[window] = client;
 318 }
 319
 320
 321 void Openbox::removeClient(Window window)
 322 {
 323   _clients.erase(window);
 324 }
 325
 326
 327 OBClient *Openbox::findClient(Window window)
 328 {
 329   /*
 330     NOTE: we dont use _clients[] to find the value because that will insert
 331     a new null into the hash, which really sucks when we want to clean up the
 332     hash at shutdown!
 333   */
 334   ClientMap::iterator it = _clients.find(window);
 335   if (it != _clients.end())
 336     return it->second;
 337   else
 338     return (OBClient*) 0;
 339 }
 340
 341
 342 void Openbox::setFocusedClient(OBClient *c)
 343 {
 344   _focused_client = c;
 345   if (c) {
 346     _focused_screen = _screens[c->screen()];
 347   } else {
 348     assert(_focused_screen);
 349     XSetInputFocus(otk::OBDisplay::display, _focused_screen->focuswindow(),
 350                    RevertToNone, CurrentTime);
 351   }
 352   // set the NET_ACTIVE_WINDOW hint for all screens
 353   ScreenList::iterator it, end = _screens.end();
 354   for (it = _screens.begin(); it != end; ++it) {
 355     int num = (*it)->number();
 356     Window root = otk::OBDisplay::screenInfo(num)->rootWindow();
 357     _property->set(root, otk::OBProperty::net_active_window,
 358                    otk::OBProperty::Atom_Window,
 359                    (c && _focused_screen == *it) ? c->window() : None);
 360   }
 361 }
 362
 363 void Openbox::execute(int screen, const std::string &bin)
 364 {
 365 #ifdef    __EMX__
 366   // XXX: whats this for? windows?
 367   spawnlp(P_NOWAIT, "cmd.exe", "cmd.exe", "/c", bin.c_str(), NULL);
 368 #else //  __EMX__
 369   if (screen >= ScreenCount(otk::OBDisplay::display))
 370     screen = 0;
 371   const std::string &dstr =
 372     otk::OBDisplay::screenInfo(screen)->displayString();
 373
 374   if (! fork()) {
 375       setsid();
 376       int ret = putenv(const_cast<char *>(dstr.c_str()));
 377       assert(ret != -1);
 378       ret = execl("/bin/sh", "/bin/sh", "-c", bin.c_str(), NULL);
 379       exit(ret);
 380     }
 381 #endif // __EMX__
 382 }
 383
 384 }
 385