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.
  64
  65   case SIGINT:
  66   case SIGTERM:
  67   case SIGPIPE:
  68     printf("Caught signal %d. Exiting.\n", signal);
  69     instance->shutdown();
  70
  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   _argv0 = argv[0];
  92   _doshutdown = false;
  93   _rcfilepath = otk::expandTilde("~/.openbox/rc3");
  94   _scriptfilepath = otk::expandTilde("~/.openbox/user.py");
  95   _focused_client = 0;
  96   _sync = false;
  97
  98   parseCommandLine(argc, argv);
  99
 100   // open the X display (and gets some info about it, and its screens)
 101   otk::OBDisplay::initialize(_displayreq);
 102   assert(otk::OBDisplay::display);
 103
 104   XSynchronize(otk::OBDisplay::display, _sync);
 105
 106   // set up the signal handler
 107   action.sa_handler = Openbox::signalHandler;
 108   action.sa_mask = sigset_t();
 109   action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
 110   sigaction(SIGPIPE, &action, (struct sigaction *) 0);
 111   sigaction(SIGSEGV, &action, (struct sigaction *) 0);
 112   sigaction(SIGFPE, &action, (struct sigaction *) 0);
 113   sigaction(SIGTERM, &action, (struct sigaction *) 0);
 114   sigaction(SIGINT, &action, (struct sigaction *) 0);
 115   sigaction(SIGHUP, &action, (struct sigaction *) 0);
 116
 117   _property = new otk::OBProperty();
 118   _actions = new OBActions();
 119   _bindings = new OBBindings();
 120
 121   setMasterHandler(_actions); // set as the master event handler
 122
 123   // create the mouse cursors we'll use
 124   _cursors.session = XCreateFontCursor(otk::OBDisplay::display, XC_left_ptr);
 125   _cursors.move = XCreateFontCursor(otk::OBDisplay::display, XC_fleur);
 126   _cursors.ll_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ll_angle);
 127   _cursors.lr_angle = XCreateFontCursor(otk::OBDisplay::display, XC_lr_angle);
 128   _cursors.ul_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ul_angle);
 129   _cursors.ur_angle = XCreateFontCursor(otk::OBDisplay::display, XC_ur_angle);
 130
 131   // initialize scripting
 132   python_init(argv[0]);
 133
 134   // load config values
 135   python_exec(SCRIPTDIR"/config.py"); // load openbox config values
 136   // run all of the python scripts
 137   python_exec(SCRIPTDIR"/builtins.py"); // builtin callbacks
 138   // run the user's script
 139   python_exec(_scriptfilepath.c_str());
 140
 141   // initialize all the screens
 142   OBScreen *screen;
 143   screen = new OBScreen(0);
 144   if (screen->managed()) {
 145     _screens.push_back(screen);
 146     // XXX: "change to" the first workspace on the screen to initialize stuff
 147   } else
 148     delete screen;
 149
 150   if (_screens.empty()) {
 151     printf(_("No screens were found without a window manager. Exiting.\n"));
 152     ::exit(1);
 153   }
 154
 155   ScreenList::iterator it, end = _screens.end();
 156   for (it = _screens.begin(); it != end; ++it) {
 157     (*it)->manageExisting();
 158   }
 159
 160   // grab any keys set up before the screens existed
 161   _bindings->grabKeys(true);
 162
 163   // set up input focus
 164   _focused_screen = _screens[0];
 165   setFocusedClient(0);
 166
 167   _state = State_Normal; // done starting
 168 }
 169
 170
 171 Openbox::~Openbox()
 172 {
 173   _state = State_Exiting; // time to kill everything
 174
 175   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 176
 177   delete _bindings;
 178   delete _actions;
 179   delete _property;
 180
 181   python_destroy();
 182
 183   // close the X display
 184   otk::OBDisplay::destroy();
 185 }
 186
 187
 188 void Openbox::parseCommandLine(int argc, char **argv)
 189 {
 190   bool err = false;
 191
 192   for (int i = 1; i < argc; ++i) {
 193     std::string arg(argv[i]);
 194
 195     if (arg == "-display") {
 196       if (++i >= argc)
 197         err = true;
 198       else
 199         _displayreq = argv[i];
 200     } else if (arg == "-rc") {
 201       if (++i >= argc)
 202         err = true;
 203       else
 204         _rcfilepath = argv[i];
 205     } else if (arg == "-menu") {
 206       if (++i >= argc)
 207         err = true;
 208       else
 209         _menufilepath = argv[i];
 210     } else if (arg == "-script") {
 211       if (++i >= argc)
 212         err = true;
 213       else
 214         _scriptfilepath = argv[i];
 215     } else if (arg == "-sync") {
 216       _sync = true;
 217     } else if (arg == "-version") {
 218       showVersion();
 219       ::exit(0);
 220     } else if (arg == "-help") {
 221       showHelp();
 222       ::exit(0);
 223     } else
 224       err = true;
 225
 226     if (err) {
 227       showHelp();
 228       exit(1);
 229     }
 230   }
 231 }
 232
 233
 234 void Openbox::showVersion()
 235 {
 236   printf(_("Openbox - version %s\n"), OPENBOX_VERSION);
 237   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 238 }
 239
 240
 241 void Openbox::showHelp()
 242 {
 243   showVersion(); // show the version string and copyright
 244
 245   // print program usage and command line options
 246   printf(_("Usage: %s [OPTIONS...]\n\
 247   Options:\n\
 248   -display <string>  use display connection.\n\
 249   -rc <string>       use alternate resource file.\n\
 250   -menu <string>     use alternate menu file.\n\
 251   -script <string>   use alternate startup script file.\n\
 252   -version           display version and exit.\n\
 253   -help              display this help text and exit.\n\n"), _argv0);
 254
 255   printf(_("Compile time options:\n\
 256   Debugging: %s\n\
 257   Shape:     %s\n\
 258   Xinerama:  %s\n"),
 259 #ifdef    DEBUG
 260          _("yes"),
 261 #else // !DEBUG
 262          _("no"),
 263 #endif // DEBUG
 264
 265 #ifdef    SHAPE
 266          _("yes"),
 267 #else // !SHAPE
 268          _("no"),
 269 #endif // SHAPE
 270
 271 #ifdef    XINERAMA
 272          _("yes")
 273 #else // !XINERAMA
 274          _("no")
 275 #endif // XINERAMA
 276     );
 277 }
 278
 279
 280 void Openbox::eventLoop()
 281 {
 282   while (!_doshutdown) {
 283     dispatchEvents(); // from OtkEventDispatcher
 284     XFlush(otk::OBDisplay::display); // flush here before we go wait for timers
 285     _timermanager.fire();
 286   }
 287 }
 288
 289
 290 void Openbox::addClient(Window window, OBClient *client)
 291 {
 292   _clients[window] = client;
 293 }
 294
 295
 296 void Openbox::removeClient(Window window)
 297 {
 298   _clients.erase(window);
 299 }
 300
 301
 302 OBClient *Openbox::findClient(Window window)
 303 {
 304   /*
 305     NOTE: we dont use _clients[] to find the value because that will insert
 306     a new null into the hash, which really sucks when we want to clean up the
 307     hash at shutdown!
 308   */
 309   ClientMap::iterator it = _clients.find(window);
 310   if (it != _clients.end())
 311     return it->second;
 312   else
 313     return (OBClient*) 0;
 314 }
 315
 316
 317 void Openbox::setFocusedClient(OBClient *c)
 318 {
 319   _focused_client = c;
 320   if (c) {
 321     _focused_screen = _screens[c->screen()];
 322   } else {
 323     assert(_focused_screen);
 324     XSetInputFocus(otk::OBDisplay::display, _focused_screen->focuswindow(),
 325                    RevertToNone, CurrentTime);
 326   }
 327 }
 328
 329 void Openbox::execute(int screen, const std::string &bin)
 330 {
 331 #ifdef    __EMX__
 332   // XXX: whats this for? windows?
 333   spawnlp(P_NOWAIT, "cmd.exe", "cmd.exe", "/c", bin.c_str(), NULL);
 334 #else //  __EMX__
 335   if (screen >= ScreenCount(otk::OBDisplay::display))
 336     screen = 0;
 337   const std::string &dstr =
 338     otk::OBDisplay::screenInfo(screen)->displayString();
 339
 340   if (! fork()) {
 341       setsid();
 342       int ret = putenv(const_cast<char *>(dstr.c_str()));
 343       assert(ret != -1);
 344       ret = execl("/bin/sh", "/bin/sh", "-c", bin.c_str(), NULL);
 345       exit(ret);
 346     }
 347 #endif // __EMX__
 348 }
 349
 350 }
 351