/* This file is part of the KDE project Copyright (C) 1999 David Faure (maintainer) This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include "desktop.h" #include "lockeng.h" #include "init.h" #include "krootwm.h" #include "kdesktopsettings.h" #include "kdesktopapp.h" #include #include #include #include #if defined(Q_WS_X11) && defined(HAVE_XRENDER) && TQT_VERSION >= 0x030300 #define COMPOSITE #endif #ifdef COMPOSITE # include # include # include # include #endif static const char description[] = I18N_NOOP("The KDE desktop"); static const char version[] = VERSION; static KCmdLineOptions options[] = { { "x-root", I18N_NOOP("Use this if the desktop window appears as a real window"), 0 }, { "noautostart", I18N_NOOP("Obsolete"), 0 }, { "waitforkded", I18N_NOOP("Wait for kded to finish building database"), 0 }, #ifdef COMPOSITE { "bg-transparency", I18N_NOOP("Enable background transparency"), 0 }, #endif KCmdLineLastOption }; bool argb_visual = false; KDesktopApp *myApp = NULL; // ----------------------------------------------------------------------------- int kdesktop_screen_number = 0; TQCString kdesktop_name, kicker_name, twin_name; static void crashHandler(int sigId) { DCOPClient::emergencyClose(); // unregister DCOP sleep( 1 ); system("kdesktop &"); // try to restart fprintf(stderr, "*** kdesktop (%ld) got signal %d\n", (long) getpid(), sigId); ::exit(1); } static void signalHandler(int sigId) { fprintf(stderr, "*** kdesktop got signal %d (Exiting)\n", sigId); KCrash::setEmergencySaveFunction(0); // No restarts any more // try to cleanup all windows signal(SIGTERM, SIG_DFL); // next one kills signal(SIGHUP, SIG_DFL); // next one kills if (kapp) kapp->quit(); // turn catchable signals into clean shutdown } void KDesktop::slotUpAndRunning() { // Activate crash recovery if (getenv("KDE_DEBUG") == NULL) KCrash::setEmergencySaveFunction(crashHandler); // Try to restart on crash } extern "C" KDE_EXPORT int kdemain( int argc, char **argv ) { //setup signal handling signal(SIGTERM, signalHandler); signal(SIGHUP, signalHandler); { if (KGlobalSettings::isMultiHead()) { Display *dpy = XOpenDisplay(NULL); if (! dpy) { fprintf(stderr, "%s: FATAL ERROR: couldn't open display '%s'\n", argv[0], XDisplayName(NULL)); exit(1); } int number_of_screens = ScreenCount(dpy); kdesktop_screen_number = DefaultScreen(dpy); int pos; TQCString display_name = XDisplayString(dpy); XCloseDisplay(dpy); dpy = 0; if ((pos = display_name.findRev('.')) != -1) display_name.remove(pos, 10); TQCString env; if (number_of_screens != 1) { for (int i = 0; i < number_of_screens; i++) { if (i != kdesktop_screen_number && fork() == 0) { kdesktop_screen_number = i; // break here because we are the child process, we don't // want to fork() anymore break; } } env.sprintf("DISPLAY=%s.%d", display_name.data(), kdesktop_screen_number); if (putenv(strdup(env.data()))) { fprintf(stderr, "%s: WARNING: unable to set DISPLAY environment variable\n", argv[0]); perror("putenv()"); } } } } KGlobal::locale()->setMainCatalogue("kdesktop"); if (kdesktop_screen_number == 0) { kdesktop_name = "kdesktop"; kicker_name = "kicker"; twin_name = "twin"; } else { kdesktop_name.sprintf("kdesktop-screen-%d", kdesktop_screen_number); kicker_name.sprintf("kicker-screen-%d", kdesktop_screen_number); twin_name.sprintf("twin-screen-%d", kdesktop_screen_number); } KAboutData aboutData( kdesktop_name, I18N_NOOP("KDesktop"), version, description, KAboutData::License_GPL, "(c) 1998-2000, The KDesktop Authors"); aboutData.addAuthor("David Faure", 0, "faure@kde.org"); aboutData.addAuthor("Martin Koller", 0, "m.koller@surfeu.at"); aboutData.addAuthor("Waldo Bastian", 0, "bastian@kde.org"); aboutData.addAuthor("Luboš Luňák", 0, "l.lunak@kde.org"); aboutData.addAuthor("Joseph Wenninger", 0, "kde@jowenn.at"); aboutData.addAuthor("Tim Jansen", 0, "tim@tjansen.de"); aboutData.addAuthor("Benoit Walter", 0, "b.walter@free.fr"); aboutData.addAuthor("Torben Weis", 0, "weis@kde.org"); aboutData.addAuthor("Matthias Ettrich", 0, "ettrich@kde.org"); KCmdLineArgs::init( argc, argv, &aboutData ); KCmdLineArgs::addCmdLineOptions( options ); if (!KUniqueApplication::start()) { fprintf(stderr, "kdesktop is already running!\n"); exit(0); } DCOPClient* cl = new DCOPClient; cl->attach(); DCOPRef r( "ksmserver", "ksmserver" ); r.setDCOPClient( cl ); r.send( "suspendStartup", TQCString( "kdesktop" )); delete cl; KCmdLineArgs *args = KCmdLineArgs::parsedArgs(); #ifdef COMPOSITE KCmdLineArgs *qtargs = KCmdLineArgs::parsedArgs("qt"); if ( args->isSet("bg-transparency")) { char *display = 0; if ( qtargs->isSet("display")) display = qtargs->getOption( "display" ).data(); Display *dpy = XOpenDisplay( display ); if ( !dpy ) { kdError() << "cannot connect to X server " << display << endl; exit( 1 ); } int screen = DefaultScreen( dpy ); Visual *visual = 0; int event_base, error_base; if ( XRenderQueryExtension( dpy, &event_base, &error_base ) ) { int nvi; XVisualInfo templ; templ.screen = screen; templ.depth = 32; templ.c_class = TrueColor; XVisualInfo *xvi = XGetVisualInfo( dpy, VisualScreenMask | VisualDepthMask | VisualClassMask, &templ, &nvi ); for ( int i = 0; i < nvi; i++ ) { XRenderPictFormat *format = XRenderFindVisualFormat( dpy, xvi[i].visual ); if ( format->type == PictTypeDirect && format->direct.alphaMask ) { visual = xvi[i].visual; kdDebug() << "found visual with alpha support" << endl; argb_visual = true; break; } } } // The TQApplication ctor used is normally intended for applications not using Qt // as the primary toolkit (e.g. Motif apps also using Qt), with some slightly // unpleasant side effects (e.g. #83974). This code checks if qt-copy patch #0078 // is applied, which allows turning this off. bool* qt_no_foreign_hack = static_cast< bool* >( dlsym( RTLD_DEFAULT, "qt_no_foreign_hack" )); if( qt_no_foreign_hack ) *qt_no_foreign_hack = true; // else argb_visual = false ... ? *shrug* if( argb_visual ) myApp = new KDesktopApp( dpy, Qt::HANDLE( visual ), 0 ); else XCloseDisplay( dpy ); } if( myApp == NULL ) myApp = new KDesktopApp; #else myApp = new KDesktopApp; #endif myApp->disableSessionManagement(); // Do SM, but don't restart. KDesktopSettings::instance(kdesktop_name + "rc"); bool x_root_hack = args->isSet("x-root"); bool wait_for_kded = args->isSet("waitforkded"); // This MUST be created before any widgets are created SaverEngine saver; // Do this before forking so that if a dialog box appears it won't // be covered by other apps. // And before creating KDesktop too, of course. testLocalInstallation(); // Mark kdeskop as immutable if all of its config modules have been disabled if (!myApp->config()->isImmutable() && kapp->authorizeControlModules(KRootWm::configModules()).isEmpty()) { myApp->config()->setReadOnly(true); myApp->config()->reparseConfiguration(); } // for the KDE-already-running check in starttde KSelectionOwner kde_running( "_KDE_RUNNING", 0 ); kde_running.claim( false ); KDesktop desktop( x_root_hack, wait_for_kded ); args->clear(); myApp->dcopClient()->setDefaultObject( "KDesktopIface" ); return myApp->exec(); }