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295 lines
9.1 KiB
295 lines
9.1 KiB
/* This file is part of the KDE project
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Copyright (C) 1999 David Faure (maintainer)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include <kuniqueapplication.h>
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#include <klocale.h>
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#include <dcopclient.h>
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#include <kaboutdata.h>
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#include <kcmdlineargs.h>
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#include <kopenwith.h>
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#include <kcrash.h>
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#include <kdebug.h>
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#include <kglobalsettings.h>
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#include <kglobal.h>
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#include <kconfig.h>
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#include <kmanagerselection.h>
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#include "desktop.h"
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#include "lockeng.h"
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#include "init.h"
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#include "krootwm.h"
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#include "kdesktopsettings.h"
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#include "kdesktopapp.h"
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#include <signal.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#if defined(Q_WS_X11) && defined(HAVE_XRENDER) && QT_VERSION >= 0x030300
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#define COMPOSITE
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#endif
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#ifdef COMPOSITE
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# include <X11/Xlib.h>
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# include <X11/extensions/Xrender.h>
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# include <fixx11h.h>
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# include <dlfcn.h>
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#endif
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static const char description[] =
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I18N_NOOP("The KDE desktop");
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static const char version[] = VERSION;
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static KCmdLineOptions options[] =
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{
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{ "x-root", I18N_NOOP("Use this if the desktop window appears as a real window"), 0 },
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{ "noautostart", I18N_NOOP("Obsolete"), 0 },
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{ "waitforkded", I18N_NOOP("Wait for kded to finish building database"), 0 },
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#ifdef COMPOSITE
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{ "bg-transparency", I18N_NOOP("Enable background transparency"), 0 },
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#endif
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KCmdLineLastOption
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};
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bool argb_visual = false;
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KDesktopApp *myApp = NULL;
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// -----------------------------------------------------------------------------
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int kdesktop_screen_number = 0;
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QCString kdesktop_name, kicker_name, kwin_name;
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static void crashHandler(int sigId)
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{
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DCOPClient::emergencyClose(); // unregister DCOP
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sleep( 1 );
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system("kdesktop &"); // try to restart
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fprintf(stderr, "*** kdesktop (%ld) got signal %d\n", (long) getpid(), sigId);
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::exit(1);
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}
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static void signalHandler(int sigId)
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{
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fprintf(stderr, "*** kdesktop got signal %d (Exiting)\n", sigId);
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KCrash::setEmergencySaveFunction(0); // No restarts any more
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// try to cleanup all windows
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signal(SIGTERM, SIG_DFL); // next one kills
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signal(SIGHUP, SIG_DFL); // next one kills
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if (kapp)
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kapp->quit(); // turn catchable signals into clean shutdown
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}
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void KDesktop::slotUpAndRunning()
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{
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// Activate crash recovery
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if (getenv("KDE_DEBUG") == NULL)
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KCrash::setEmergencySaveFunction(crashHandler); // Try to restart on crash
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}
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extern "C" KDE_EXPORT int kdemain( int argc, char **argv )
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{
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//setup signal handling
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signal(SIGTERM, signalHandler);
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signal(SIGHUP, signalHandler);
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{
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if (KGlobalSettings::isMultiHead())
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{
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Display *dpy = XOpenDisplay(NULL);
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if (! dpy) {
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fprintf(stderr,
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"%s: FATAL ERROR: couldn't 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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kdesktop_screen_number = DefaultScreen(dpy);
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int pos;
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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);
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QCString env;
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if (number_of_screens != 1) {
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for (int i = 0; i < number_of_screens; i++) {
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if (i != kdesktop_screen_number && fork() == 0) {
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kdesktop_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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env.sprintf("DISPLAY=%s.%d", display_name.data(),
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kdesktop_screen_number);
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if (putenv(strdup(env.data()))) {
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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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KGlobal::locale()->setMainCatalogue("kdesktop");
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if (kdesktop_screen_number == 0) {
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kdesktop_name = "kdesktop";
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kicker_name = "kicker";
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kwin_name = "kwin";
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} else {
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kdesktop_name.sprintf("kdesktop-screen-%d", kdesktop_screen_number);
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kicker_name.sprintf("kicker-screen-%d", kdesktop_screen_number);
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kwin_name.sprintf("kwin-screen-%d", kdesktop_screen_number);
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}
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KAboutData aboutData( kdesktop_name, I18N_NOOP("KDesktop"),
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version, description, KAboutData::License_GPL,
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"(c) 1998-2000, The KDesktop Authors");
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aboutData.addAuthor("David Faure", 0, "faure@kde.org");
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aboutData.addAuthor("Martin Koller", 0, "m.koller@surfeu.at");
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aboutData.addAuthor("Waldo Bastian", 0, "bastian@kde.org");
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aboutData.addAuthor("Luboš Luňák", 0, "l.lunak@kde.org");
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aboutData.addAuthor("Joseph Wenninger", 0, "kde@jowenn.at");
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aboutData.addAuthor("Tim Jansen", 0, "tim@tjansen.de");
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aboutData.addAuthor("Benoit Walter", 0, "b.walter@free.fr");
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aboutData.addAuthor("Torben Weis", 0, "weis@kde.org");
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aboutData.addAuthor("Matthias Ettrich", 0, "ettrich@kde.org");
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KCmdLineArgs::init( argc, argv, &aboutData );
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KCmdLineArgs::addCmdLineOptions( options );
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if (!KUniqueApplication::start()) {
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fprintf(stderr, "kdesktop is already running!\n");
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exit(0);
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}
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DCOPClient* cl = new DCOPClient;
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cl->attach();
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DCOPRef r( "ksmserver", "ksmserver" );
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r.setDCOPClient( cl );
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r.send( "suspendStartup", QCString( "kdesktop" ));
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delete cl;
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KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
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#ifdef COMPOSITE
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KCmdLineArgs *qtargs = KCmdLineArgs::parsedArgs("qt");
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if ( args->isSet("bg-transparency")) {
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char *display = 0;
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if ( qtargs->isSet("display"))
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display = qtargs->getOption( "display" ).data();
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Display *dpy = XOpenDisplay( display );
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if ( !dpy ) {
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kdError() << "cannot connect to X server " << display << endl;
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exit( 1 );
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}
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int screen = DefaultScreen( dpy );
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Visual *visual = 0;
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int event_base, error_base;
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if ( XRenderQueryExtension( dpy, &event_base, &error_base ) ) {
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int nvi;
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XVisualInfo templ;
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templ.screen = screen;
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templ.depth = 32;
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templ.c_class = TrueColor;
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XVisualInfo *xvi = XGetVisualInfo( dpy, VisualScreenMask
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| VisualDepthMask | VisualClassMask, &templ, &nvi );
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for ( int i = 0; i < nvi; i++ ) {
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XRenderPictFormat *format =
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XRenderFindVisualFormat( dpy, xvi[i].visual );
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if ( format->type == PictTypeDirect && format->direct.alphaMask ) {
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visual = xvi[i].visual;
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kdDebug() << "found visual with alpha support" << endl;
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argb_visual = true;
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break;
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}
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}
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}
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// The QApplication ctor used is normally intended for applications not using Qt
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// as the primary toolkit (e.g. Motif apps also using Qt), with some slightly
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// unpleasant side effects (e.g. #83974). This code checks if qt-copy patch #0078
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// is applied, which allows turning this off.
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bool* qt_no_foreign_hack =
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static_cast< bool* >( dlsym( RTLD_DEFAULT, "qt_no_foreign_hack" ));
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if( qt_no_foreign_hack )
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*qt_no_foreign_hack = true;
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// else argb_visual = false ... ? *shrug*
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if( argb_visual )
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myApp = new KDesktopApp( dpy, Qt::HANDLE( visual ), 0 );
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else
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XCloseDisplay( dpy );
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}
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if( myApp == NULL )
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myApp = new KDesktopApp;
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#else
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myApp = new KDesktopApp;
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#endif
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myApp->disableSessionManagement(); // Do SM, but don't restart.
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KDesktopSettings::instance(kdesktop_name + "rc");
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bool x_root_hack = args->isSet("x-root");
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bool wait_for_kded = args->isSet("waitforkded");
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// This MUST be created before any widgets are created
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SaverEngine saver;
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// Do this before forking so that if a dialog box appears it won't
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// be covered by other apps.
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// And before creating KDesktop too, of course.
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testLocalInstallation();
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// Mark kdeskop as immutable if all of its config modules have been disabled
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if (!myApp->config()->isImmutable() &&
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kapp->authorizeControlModules(KRootWm::configModules()).isEmpty())
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{
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myApp->config()->setReadOnly(true);
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myApp->config()->reparseConfiguration();
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}
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// for the KDE-already-running check in startkde
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KSelectionOwner kde_running( "_KDE_RUNNING", 0 );
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kde_running.claim( false );
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KDesktop desktop( x_root_hack, wait_for_kded );
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args->clear();
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myApp->dcopClient()->setDefaultObject( "KDesktopIface" );
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return myApp->exec();
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}
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