Dogcows Code - chaz/openbox/blob - src/openbox.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; -*-
   2
   3 #ifdef HAVE_CONFIG_H
   4 # include "../config.h"
   5 #endif
   6
   7 #include "../version.h"
   8 #include "openbox.hh"
   9 #include "screen.hh"
  10 #include "otk/property.hh"
  11 #include "otk/display.hh"
  12 #include "otk/assassin.hh"
  13 #include "otk/util.hh" // TEMPORARY
  14
  15 extern "C" {
  16 #include <X11/cursorfont.h>
  17
  18 #ifdef    HAVE_STDIO_H
  19 #  include <stdio.h>
  20 #endif // HAVE_STDIO_H
  21
  22 #ifdef    HAVE_STDLIB_H
  23 #  include <stdlib.h>
  24 #endif // HAVE_STDLIB_H
  25
  26 #ifdef    HAVE_SIGNAL_H
  27 #  include <signal.h>
  28 #endif // HAVE_SIGNAL_H
  29
  30 #ifdef    HAVE_FCNTL_H
  31 #  include <fcntl.h>
  32 #endif // HAVE_FCNTL_H
  33
  34 #ifdef    HAVE_UNISTD_H
  35 #  include <sys/types.h>
  36 #  include <unistd.h>
  37 #endif // HAVE_UNISTD_H
  38
  39 #ifdef    HAVE_SYS_SELECT_H
  40 #  include <sys/select.h>
  41 #endif // HAVE_SYS_SELECT_H
  42
  43 #include "gettext.h"
  44 #define _(str) gettext(str)
  45 }
  46
  47 #include <algorithm>
  48
  49 namespace ob {
  50
  51 Openbox *Openbox::instance = (Openbox *) 0;
  52
  53
  54 void Openbox::signalHandler(int signal)
  55 {
  56   switch (signal) {
  57   case SIGHUP:
  58     // XXX: Do something with HUP? Really shouldn't, we get this when X shuts
  59     //      down and hangs-up on us.
  60
  61   case SIGINT:
  62   case SIGTERM:
  63   case SIGPIPE:
  64     printf("Caught signal %d. Exiting.\n", signal);
  65     instance->shutdown();
  66
  67     break;
  68   case SIGFPE:
  69   case SIGSEGV:
  70     printf("Caught signal %d. Aborting and dumping core.\n", signal);
  71     abort();
  72   }
  73 }
  74
  75
  76 Openbox::Openbox(int argc, char **argv)
  77   : otk::OtkEventDispatcher(),
  78     otk::OtkEventHandler()
  79 {
  80   struct sigaction action;
  81
  82   _state = State_Starting; // initializing everything
  83
  84   Openbox::instance = this;
  85
  86   _displayreq = (char*) 0;
  87   _argv0 = argv[0];
  88   _doshutdown = false;
  89   _rcfilepath = otk::expandTilde("~/.openbox/rc3");
  90
  91   parseCommandLine(argc, argv);
  92
  93   // TEMPORARY: using the xrdb rc3
  94   _config.setFile(_rcfilepath);
  95   if (!_config.load()) {
  96     printf("failed to load rc file %s\n", _config.file().c_str());
  97     ::exit(2);
  98   }
  99   std::string s;
 100   _config.getValue("session.styleFile", s);
 101   _config.setFile(s);
 102   if (!_config.load()) {
 103     printf("failed to load style %s\n", _config.file().c_str());
 104     ::exit(2);
 105   }
 106
 107   // open the X display (and gets some info about it, and its screens)
 108   otk::OBDisplay::initialize(_displayreq);
 109   assert(otk::OBDisplay::display);
 110
 111   // set up the signal handler
 112   action.sa_handler = Openbox::signalHandler;
 113   action.sa_mask = sigset_t();
 114   action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
 115   sigaction(SIGPIPE, &action, (struct sigaction *) 0);
 116   sigaction(SIGSEGV, &action, (struct sigaction *) 0);
 117   sigaction(SIGFPE, &action, (struct sigaction *) 0);
 118   sigaction(SIGTERM, &action, (struct sigaction *) 0);
 119   sigaction(SIGINT, &action, (struct sigaction *) 0);
 120   sigaction(SIGHUP, &action, (struct sigaction *) 0);
 121
 122   _property = new otk::OBProperty();
 123
 124   // set this class as the fallback event handler (for map events)
 125   setFallbackHandler(this);
 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 all the screens
 136   OBScreen *screen;
 137   screen = new OBScreen(0, _config);
 138   if (screen->managed()) {
 139     _screens.push_back(screen);
 140     _screens[0]->manageExisting();
 141     // XXX: "change to" the first workspace on the screen to initialize stuff
 142   } else
 143     delete screen;
 144
 145   if (_screens.empty()) {
 146     printf(_("No screens were found without a window manager. Exiting.\n"));
 147     ::exit(1);
 148   }
 149
 150   _state = State_Normal; // done starting
 151 }
 152
 153
 154 Openbox::~Openbox()
 155 {
 156   _state = State_Exiting; // time to kill everything
 157
 158   std::for_each(_screens.begin(), _screens.end(), otk::PointerAssassin());
 159
 160   // close the X display
 161   otk::OBDisplay::destroy();
 162 }
 163
 164
 165 void Openbox::parseCommandLine(int argc, char **argv)
 166 {
 167   bool err = false;
 168
 169   for (int i = 1; i < argc; ++i) {
 170     std::string arg(argv[i]);
 171
 172     if (arg == "-display") {
 173       if (++i >= argc)
 174         err = true;
 175       else
 176         _displayreq = argv[i];
 177     } else if (arg == "-rc") {
 178       if (++i >= argc)
 179         err = true;
 180       else
 181         _rcfilepath = argv[i];
 182     } else if (arg == "-menu") {
 183       if (++i >= argc)
 184         err = true;
 185       else
 186         _menufilepath = argv[i];
 187     } else if (arg == "-version") {
 188       showVersion();
 189       ::exit(0);
 190     } else if (arg == "-help") {
 191       showHelp();
 192       ::exit(0);
 193     } else
 194       err = true;
 195
 196     if (err) {
 197       showHelp();
 198       exit(1);
 199     }
 200   }
 201 }
 202
 203
 204 void Openbox::showVersion()
 205 {
 206   printf(_("Openbox - version %s\n"), OPENBOX_VERSION);
 207   printf("    (c) 2002 - 2002 Ben Jansens\n\n");
 208 }
 209
 210
 211 void Openbox::showHelp()
 212 {
 213   showVersion(); // show the version string and copyright
 214
 215   // print program usage and command line options
 216   printf(_("Usage: %s [OPTIONS...]\n\
 217   Options:\n\
 218   -display <string>  use display connection.\n\
 219   -rc <string>       use alternate resource file.\n\
 220   -menu <string>     use alternate menu file.\n\
 221   -version           display version and exit.\n\
 222   -help              display this help text and exit.\n\n"), _argv0);
 223
 224   printf(_("Compile time options:\n\
 225   Debugging: %s\n\
 226   Shape:     %s\n\
 227   Xinerama:  %s\n"),
 228 #ifdef    DEBUG
 229          _("yes"),
 230 #else // !DEBUG
 231          _("no"),
 232 #endif // DEBUG
 233
 234 #ifdef    SHAPE
 235          _("yes"),
 236 #else // !SHAPE
 237          _("no"),
 238 #endif // SHAPE
 239
 240 #ifdef    XINERAMA
 241          _("yes")
 242 #else // !XINERAMA
 243          _("no")
 244 #endif // XINERAMA
 245     );
 246 }
 247
 248
 249 void Openbox::eventLoop()
 250 {
 251   while (!_doshutdown) {
 252     dispatchEvents(); // from OtkEventDispatcher
 253     _timermanager.fire();
 254   }
 255 }
 256
 257
 258 void Openbox::addClient(Window window, OBClient *client)
 259 {
 260   _clients[window] = client;
 261 }
 262
 263
 264 void Openbox::removeClient(Window window)
 265 {
 266   ClientMap::iterator it = _clients.find(window);
 267   if (it != _clients.end())
 268     _clients.erase(it);
 269 }
 270
 271
 272 OBClient *Openbox::findClient(Window window)
 273 {
 274   /*
 275     NOTE: we dont use _clients[] to find the value because that will insert
 276     a new null into the hash, which really sucks when we want to clean up the
 277     hash at shutdown!
 278   */
 279   ClientMap::iterator it = _clients.find(window);
 280   if (it != _clients.end())
 281     return it->second;
 282   else
 283     return (OBClient*) 0;
 284 }
 285
 286
 287 void Openbox::mapRequestHandler(const XMapRequestEvent &e)
 288 {
 289 #ifdef    DEBUG
 290   printf("MapRequest for 0x%lx\n", e.window);
 291 #endif // DEBUG
 292
 293   otk::OtkEventHandler::mapRequestHandler(e);
 294
 295   OBClient *client = findClient(e.window);
 296
 297   if (client) {
 298     // XXX: uniconify and/or unshade the window
 299   } else {
 300     int screen = INT_MAX;
 301
 302     for (int i = 0; i < ScreenCount(otk::OBDisplay::display); ++i)
 303       if (otk::OBDisplay::screenInfo(i)->getRootWindow() == e.parent) {
 304         screen = i;
 305         break;
 306       }
 307
 308     if (screen >= ScreenCount(otk::OBDisplay::display)) {
 309       /*
 310         we got a map request for a window who's parent isn't root. this
 311         can happen in only one circumstance:
 312
 313         a client window unmapped a managed window, and then remapped it
 314         somewhere between unmapping the client window and reparenting it
 315         to root.
 316
 317         regardless of how it happens, we need to find the screen that
 318         the window is on
 319       */
 320       XWindowAttributes wattrib;
 321       if (! XGetWindowAttributes(otk::OBDisplay::display, e.window,
 322                                  &wattrib)) {
 323         // failed to get the window attributes, perhaps the window has
 324         // now been destroyed?
 325         return;
 326       }
 327
 328       for (int i = 0; i < ScreenCount(otk::OBDisplay::display); ++i)
 329         if (otk::OBDisplay::screenInfo(i)->getRootWindow() == wattrib.root) {
 330           screen = i;
 331           break;
 332         }
 333     }
 334
 335     assert(screen < static_cast<int>(_screens.size()));
 336     _screens[screen]->manageWindow(e.window);
 337   }
 338 }
 339
 340 }
 341