274 lines
8.1 KiB
C++
274 lines
8.1 KiB
C++
/*****************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
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Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
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You can Freely distribute this program under the GNU General Public
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License. See the file "COPYING" for the exact licensing terms.
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******************************************************************/
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//#define QT_CLEAN_NAMESPACE
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#include <kconfig.h>
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#include "main.h"
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#include <klocale.h>
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#include <stdlib.h>
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#include <kcmdlineargs.h>
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#include <kaboutdata.h>
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#include <dcopclient.h>
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#include <unistd.h>
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#include <signal.h>
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#include <fcntl.h>
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#include "atoms.h"
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#include "options.h"
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#include "sm.h"
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#define INT8 _X11INT8
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#define INT32 _X11INT32
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#include <X11/Xproto.h>
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#undef INT8
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#undef INT32
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extern Time qt_x_time;
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namespace KWinInternal
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{
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Options* options;
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Atoms* atoms;
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int screen_number = -1;
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static bool initting = FALSE;
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static
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int x11ErrorHandler(Display *d, XErrorEvent *e)
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{
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char msg[80], req[80], number[80];
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bool ignore_badwindow = TRUE; //maybe temporary
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if (initting &&
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(
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e->request_code == X_ChangeWindowAttributes
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|| e->request_code == X_GrabKey
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)
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&& (e->error_code == BadAccess))
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{
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fputs(i18n("kwin: it looks like there's already a window manager running. kwin not started.\n").local8Bit(), stderr);
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exit(1);
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}
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if (ignore_badwindow && (e->error_code == BadWindow || e->error_code == BadColor))
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return 0;
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XGetErrorText(d, e->error_code, msg, sizeof(msg));
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sprintf(number, "%d", e->request_code);
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XGetErrorDatabaseText(d, "XRequest", number, "<unknown>", req, sizeof(req));
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fprintf(stderr, "kwin: %s(0x%lx): %s\n", req, e->resourceid, msg);
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if (initting)
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{
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fputs(i18n("kwin: failure during initialization; aborting").local8Bit(), stderr);
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exit(1);
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}
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return 0;
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}
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Application::Application( )
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: KApplication( ), owner( screen_number )
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{
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KCmdLineArgs* args = KCmdLineArgs::parsedArgs();
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if (!config()->isImmutable() && args->isSet("lock"))
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{
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config()->setReadOnly(true);
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config()->reparseConfiguration();
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}
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if (screen_number == -1)
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screen_number = DefaultScreen(qt_xdisplay());
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if( !owner.claim( args->isSet( "replace" ), true ))
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{
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fputs(i18n("kwin: unable to claim manager selection, another wm running? (try using --replace)\n").local8Bit(), stderr);
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::exit(1);
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}
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connect( &owner, SIGNAL( lostOwnership()), SLOT( lostSelection()));
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initting = TRUE; // startup....
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// install X11 error handler
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XSetErrorHandler( x11ErrorHandler );
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// check whether another windowmanager is running
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XSelectInput(qt_xdisplay(), qt_xrootwin(), SubstructureRedirectMask );
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syncX(); // trigger error now
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options = new Options;
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atoms = new Atoms;
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// create workspace.
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(void) new Workspace( isSessionRestored() );
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syncX(); // trigger possible errors, there's still a chance to abort
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initting = FALSE; // startup done, we are up and running now.
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dcopClient()->send( "ksplash", "", "upAndRunning(QString)", QString("wm started"));
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}
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Application::~Application()
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{
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delete Workspace::self();
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if( owner.ownerWindow() != None ) // if there was no --replace (no new WM)
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XSetInputFocus( qt_xdisplay(), PointerRoot, RevertToPointerRoot, qt_x_time );
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delete options;
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}
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void Application::lostSelection()
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{
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delete Workspace::self();
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// remove windowmanager privileges
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XSelectInput(qt_xdisplay(), qt_xrootwin(), PropertyChangeMask );
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quit();
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}
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bool Application::x11EventFilter( XEvent *e )
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{
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if ( Workspace::self()->workspaceEvent( e ) )
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return TRUE;
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return KApplication::x11EventFilter( e );
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}
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static void sighandler(int)
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{
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QApplication::exit();
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}
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} // namespace
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static const char version[] = "2.95";
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static const char description[] = I18N_NOOP( "The KDE window manager." );
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static KCmdLineOptions args[] =
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{
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{ "lock", I18N_NOOP("Disable configuration options"), 0 },
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{ "replace", I18N_NOOP("Replace already running ICCCM2.0 compliant window manager."), 0 },
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KCmdLineLastOption
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};
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extern "C"
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int kdemain( int argc, char * argv[] )
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{
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bool restored = false;
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for (int arg = 1; arg < argc; arg++)
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{
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if (! qstrcmp(argv[arg], "-session"))
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{
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restored = true;
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break;
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}
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}
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if (! restored)
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{
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// we only do the multihead fork if we are not restored by the session
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// manager, since the session manager will register multiple kwins,
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// one for each screen...
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QCString multiHead = getenv("KDE_MULTIHEAD");
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if (multiHead.lower() == "true")
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{
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Display* dpy = XOpenDisplay( NULL );
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if ( !dpy )
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{
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fprintf(stderr, "%s: FATAL ERROR while trying to open display %s\n",
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argv[0], XDisplayName(NULL ) );
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exit (1);
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}
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int number_of_screens = ScreenCount( dpy );
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KWinInternal::screen_number = DefaultScreen( dpy );
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int pos; // temporarily needed to reconstruct DISPLAY var if multi-head
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QCString display_name = XDisplayString( dpy );
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XCloseDisplay( dpy );
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dpy = 0;
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if ((pos = display_name.findRev('.')) != -1 )
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display_name.remove(pos,10); // 10 is enough to be sure we removed ".s"
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QCString envir;
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if (number_of_screens != 1)
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{
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for (int i = 0; i < number_of_screens; i++ )
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{
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// if execution doesn't pass by here, then kwin
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// acts exactly as previously
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if ( i != KWinInternal::screen_number && fork() == 0 )
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{
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KWinInternal::screen_number = i;
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// break here because we are the child process, we don't
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// want to fork() anymore
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break;
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}
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}
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// in the next statement, display_name shouldn't contain a screen
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// number. If it had it, it was removed at the "pos" check
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envir.sprintf("DISPLAY=%s.%d", display_name.data(), KWinInternal::screen_number);
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if (putenv( strdup(envir.data())) )
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{
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fprintf(stderr,
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"%s: WARNING: unable to set DISPLAY environment variable\n",
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argv[0]);
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perror("putenv()");
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}
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}
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}
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}
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KAboutData aboutData( "kwin", I18N_NOOP("KWin"),
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version, description, KAboutData::License_GPL,
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I18N_NOOP("(c) 1999-2003, The KDE Developers"));
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aboutData.addAuthor("Matthias Ettrich",0, "ettrich@kde.org");
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aboutData.addAuthor("Cristian Tibirna",0, "tibirna@kde.org");
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aboutData.addAuthor("Daniel M. Duley",0, "mosfet@kde.org");
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aboutData.addAuthor("Lubos Lunak", 0, "l.lunak@kde.org");
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KCmdLineArgs::init(argc, argv, &aboutData);
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KCmdLineArgs::addCmdLineOptions( args );
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if (signal(SIGTERM, KWinInternal::sighandler) == SIG_IGN)
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signal(SIGTERM, SIG_IGN);
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if (signal(SIGINT, KWinInternal::sighandler) == SIG_IGN)
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signal(SIGINT, SIG_IGN);
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if (signal(SIGHUP, KWinInternal::sighandler) == SIG_IGN)
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signal(SIGHUP, SIG_IGN);
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KApplication::disableAutoDcopRegistration();
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KWinInternal::Application a;
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KWinInternal::SessionManaged weAreIndeed;
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KWinInternal::SessionSaveDoneHelper helper;
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fcntl(ConnectionNumber(qt_xdisplay()), F_SETFD, 1);
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QCString appname;
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if (KWinInternal::screen_number == 0)
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appname = "kwin";
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else
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appname.sprintf("kwin-screen-%d", KWinInternal::screen_number);
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DCOPClient* client = a.dcopClient();
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client->registerAs( appname.data(), false);
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client->setDefaultObject( "KWinInterface" );
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return a.exec();
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}
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#include "main.moc"
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