Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 442 insertions, 0 deletions

diff --git a/ksmserver/startup.cpp b/ksmserver/startup.cpp
new file mode 100644
index 000000000..9bc984a79
--- /dev/null
+++ b/ksmserver/startup.cpp
@@ -0,0 +1,442 @@
+/*****************************************************************
+ksmserver - the KDE session management server
+
+Copyright (C) 2000 Matthias Ettrich <ettrich@kde.org>
+Copyright (C) 2005 Lubos Lunak <l.lunak@kde.org>
+
+relatively small extensions by Oswald Buddenhagen <ob6@inf.tu-dresden.de>
+
+some code taken from the dcopserver (part of the KDE libraries), which is
+Copyright (c) 1999 Matthias Ettrich <ettrich@kde.org>
+Copyright (c) 1999 Preston Brown <pbrown@kde.org>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+******************************************************************/
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <pwd.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <time.h>
+#include <errno.h>
+#include <string.h>
+#include <assert.h>
+
+#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
+
+#include <qfile.h>
+#include <qtextstream.h>
+#include <qdatastream.h>
+#include <qptrstack.h>
+#include <qpushbutton.h>
+#include <qmessagebox.h>
+#include <qguardedptr.h>
+#include <qtimer.h>
+
+#include <klocale.h>
+#include <kglobal.h>
+#include <kconfig.h>
+#include <kstandarddirs.h>
+#include <unistd.h>
+#include <kapplication.h>
+#include <kstaticdeleter.h>
+#include <ktempfile.h>
+#include <kprocess.h>
+#include <dcopclient.h>
+#include <dcopref.h>
+#include <kwinmodule.h>
+#include <knotifyclient.h>
+
+#include "server.h"
+#include "global.h"
+#include "client.h"
+
+#include <kdebug.h>
+
+/*!  Restores the previous session. Ensures the window manager is
+  running (if specified).
+ */
+void KSMServer::restoreSession( QString sessionName )
+{
+    if( state != Idle )
+        return;
+    state = LaunchingWM;
+
+    kdDebug( 1218 ) << "KSMServer::restoreSession " << sessionName << endl;
+    upAndRunning( "restore session");
+    KConfig* config = KGlobal::config();
+
+    sessionGroup = "Session: " + sessionName;
+
+    config->setGroup( sessionGroup );
+    int count =  config->readNumEntry( "count" );
+    appsToStart = count;
+
+    QValueList<QStringList> wmCommands;
+    if ( !wm.isEmpty() ) {
+	for ( int i = 1; i <= count; i++ ) {
+	    QString n = QString::number(i);
+	    if ( wm == config->readEntry( QString("program")+n ) ) {
+		wmCommands << config->readListEntry( QString("restartCommand")+n );
+	    }
+	}
+    }
+    if ( wmCommands.isEmpty() )
+        wmCommands << ( QStringList() << wm );
+
+    publishProgress( appsToStart, true );
+    connectDCOPSignal( launcher, launcher, "autoStart0Done()",
+                       "autoStart0Done()", true);
+    connectDCOPSignal( launcher, launcher, "autoStart1Done()",
+                       "autoStart1Done()", true);
+    connectDCOPSignal( launcher, launcher, "autoStart2Done()",
+                       "autoStart2Done()", true);
+    upAndRunning( "ksmserver" );
+
+    if ( !wmCommands.isEmpty() ) {
+        // when we have a window manager, we start it first and give
+        // it some time before launching other processes. Results in a
+        // visually more appealing startup.
+        for (uint i = 0; i < wmCommands.count(); i++)
+            startApplication( wmCommands[i] );
+        QTimer::singleShot( 4000, this, SLOT( autoStart0() ) );
+    } else {
+        autoStart0();
+    }
+}
+
+/*!
+  Starts the default session.
+
+  Currently, that's the window manager only (if specified).
+ */
+void KSMServer::startDefaultSession()
+{
+    if( state != Idle )
+        return;
+
+    state = LaunchingWM;
+    sessionGroup = "";
+    publishProgress( 0, true );
+    upAndRunning( "ksmserver" );
+    connectDCOPSignal( launcher, launcher, "autoStart0Done()",
+                       "autoStart0Done()", true);
+    connectDCOPSignal( launcher, launcher, "autoStart1Done()",
+                       "autoStart1Done()", true);
+    connectDCOPSignal( launcher, launcher, "autoStart2Done()",
+                       "autoStart2Done()", true);
+    startApplication( wm );
+    QTimer::singleShot( 4000, this, SLOT( autoStart0() ) );
+}
+
+
+void KSMServer::clientSetProgram( KSMClient* client )
+{
+    if ( !wm.isEmpty() && client->program() == wm )
+        autoStart0();
+}
+
+void KSMServer::autoStart0()
+{
+    if( state != LaunchingWM )
+        return;
+    if( !checkStartupSuspend())
+        return;
+    state = AutoStart0;
+    DCOPRef( launcher ).send( "autoStart", (int) 0 );
+}
+
+void KSMServer::autoStart0Done()
+{
+    if( state != AutoStart0 )
+        return;
+    disconnectDCOPSignal( launcher, launcher, "autoStart0Done()",
+                          "autoStart0Done()");
+    if( !checkStartupSuspend())
+        return;
+    kdDebug( 1218 ) << "Autostart 0 done" << endl;
+    upAndRunning( "kdesktop" );
+    upAndRunning( "kicker" );
+    connectDCOPSignal( "kcminit", "kcminit", "phase1Done()",
+                       "kcmPhase1Done()", true);
+    state = KcmInitPhase1;
+    QTimer::singleShot( 10000, this, SLOT( kcmPhase1Timeout())); // protection
+    DCOPRef( "kcminit", "kcminit" ).send( "runPhase1" );
+}
+
+void KSMServer::kcmPhase1Done()
+{
+    if( state != KcmInitPhase1 )
+        return;
+    kdDebug( 1218 ) << "Kcminit phase 1 done" << endl;
+    disconnectDCOPSignal( "kcminit", "kcminit", "phase1Done()",
+                       "kcmPhase1Done()" );
+    autoStart1();
+}
+
+void KSMServer::kcmPhase1Timeout()
+{
+    if( state != KcmInitPhase1 )
+        return;
+    kdDebug( 1218 ) << "Kcminit phase 1 timeout" << endl;
+    kcmPhase1Done();
+}
+
+void KSMServer::autoStart1()
+{
+    if( state != KcmInitPhase1 )
+        return;
+    state = AutoStart1;
+    DCOPRef( launcher ).send( "autoStart", (int) 1 );
+}
+
+void KSMServer::autoStart1Done()
+{
+    if( state != AutoStart1 )
+        return;
+    disconnectDCOPSignal( launcher, launcher, "autoStart1Done()",
+                          "autoStart1Done()");
+    if( !checkStartupSuspend())
+        return;
+    kdDebug( 1218 ) << "Autostart 1 done" << endl;
+    lastAppStarted = 0;
+    lastIdStarted = QString::null;
+    state = Restoring;
+    if( defaultSession()) {
+        autoStart2();
+        return;
+    }
+    tryRestoreNext();
+}
+
+void KSMServer::clientRegistered( const char* previousId )
+{
+    if ( previousId && lastIdStarted == previousId )
+        tryRestoreNext();
+}
+
+void KSMServer::tryRestoreNext()
+{
+    if( state != Restoring )
+        return;
+    restoreTimer.stop();
+    KConfig* config = KGlobal::config();
+    config->setGroup( sessionGroup );
+
+    while ( lastAppStarted < appsToStart ) {
+        publishProgress ( appsToStart - lastAppStarted );
+        lastAppStarted++;
+        QString n = QString::number(lastAppStarted);
+        QStringList restartCommand = config->readListEntry( QString("restartCommand")+n );
+        if ( restartCommand.isEmpty() ||
+             (config->readNumEntry( QString("restartStyleHint")+n ) == SmRestartNever)) {
+            continue;
+        }
+        if ( wm == config->readEntry( QString("program")+n ) )
+            continue; // wm already started
+        if( config->readBoolEntry( QString( "wasWm" )+n, false ))
+            continue; // it was wm before, but not now, don't run it (some have --replace in command :(  )
+        startApplication( restartCommand,
+                          config->readEntry( QString("clientMachine")+n ),
+                          config->readEntry( QString("userId")+n ));
+        lastIdStarted = config->readEntry( QString("clientId")+n );
+        if ( !lastIdStarted.isEmpty() ) {
+            restoreTimer.start( 2000, TRUE );
+            return; // we get called again from the clientRegistered handler
+        }
+    }
+
+    appsToStart = 0;
+    lastIdStarted = QString::null;
+    publishProgress( 0 );
+
+    autoStart2();
+}
+
+void KSMServer::autoStart2()
+{
+    if( state != Restoring )
+        return;
+    if( !checkStartupSuspend())
+        return;
+    state = FinishingStartup;
+    waitAutoStart2 = true;
+    waitKcmInit2 = true;
+    DCOPRef( launcher ).send( "autoStart", (int) 2 );
+    DCOPRef( "kded", "kded" ).send( "loadSecondPhase" );
+    DCOPRef( "kdesktop", "KDesktopIface" ).send( "runAutoStart" );
+    connectDCOPSignal( "kcminit", "kcminit", "phase2Done()",
+                       "kcmPhase2Done()", true);
+    QTimer::singleShot( 10000, this, SLOT( kcmPhase2Timeout())); // protection
+    DCOPRef( "kcminit", "kcminit" ).send( "runPhase2" );
+    if( !defaultSession())
+        restoreLegacySession( KGlobal::config());
+    KNotifyClient::event( 0, "startkde" ); // this is the time KDE is up, more or less
+}
+
+void KSMServer::autoStart2Done()
+{
+    if( state != FinishingStartup )
+        return;
+    disconnectDCOPSignal( launcher, launcher, "autoStart2Done()",
+                          "autoStart2Done()");
+    kdDebug( 1218 ) << "Autostart 2 done" << endl;
+    waitAutoStart2 = false;
+    finishStartup();
+}
+
+void KSMServer::kcmPhase2Done()
+{
+    if( state != FinishingStartup )
+        return;
+    kdDebug( 1218 ) << "Kcminit phase 2 done" << endl;
+    disconnectDCOPSignal( "kcminit", "kcminit", "phase2Done()",
+                          "kcmPhase2Done()");
+    waitKcmInit2 = false;
+    finishStartup();
+}
+
+void KSMServer::kcmPhase2Timeout()
+{
+    if( !waitKcmInit2 )
+        return;
+    kdDebug( 1218 ) << "Kcminit phase 2 timeout" << endl;
+    kcmPhase2Done();
+}
+
+void KSMServer::finishStartup()
+{
+    if( state != FinishingStartup )
+        return;
+    if( waitAutoStart2 || waitKcmInit2 )
+        return;
+
+    upAndRunning( "session ready" );
+    DCOPRef( "knotify" ).send( "sessionReady" ); // knotify startup optimization
+
+    state = Idle;
+
+    setupXIOErrorHandler(); // From now on handle X errors as normal shutdown.
+}
+
+bool KSMServer::checkStartupSuspend()
+{
+    if( startupSuspendCount.isEmpty())
+        return true;
+    // wait for the phase to finish
+    if( !startupSuspendTimeoutTimer.isActive())
+        startupSuspendTimeoutTimer.start( 10000, true );
+    return false;
+}
+
+void KSMServer::suspendStartup( QCString app )
+{
+    if( !startupSuspendCount.contains( app ))
+        startupSuspendCount[ app ] = 0;
+    ++startupSuspendCount[ app ];
+}
+
+void KSMServer::resumeStartup( QCString app )
+{
+    if( !startupSuspendCount.contains( app ))
+        return;
+    if( --startupSuspendCount[ app ] == 0 ) {
+        startupSuspendCount.remove( app );
+        if( startupSuspendCount.isEmpty() && startupSuspendTimeoutTimer.isActive()) {
+            startupSuspendTimeoutTimer.stop();
+            resumeStartupInternal();
+        }
+    }
+}
+
+void KSMServer::startupSuspendTimeout()
+{
+    kdDebug( 1218 ) << "Startup suspend timeout:" << state << endl;
+    resumeStartupInternal();
+}
+
+void KSMServer::resumeStartupInternal()
+{
+    startupSuspendCount.clear();
+    switch( state ) {
+        case LaunchingWM:
+            autoStart0();
+          break;
+        case AutoStart0:
+            autoStart0Done();
+          break;
+        case AutoStart1:
+            autoStart1Done();
+          break;
+        case Restoring:
+            autoStart2();
+          break;
+        default:
+            kdWarning( 1218 ) << "Unknown resume startup state" << endl;
+          break;
+    }
+}
+
+void KSMServer::publishProgress( int progress, bool max  )
+{
+    DCOPRef( "ksplash" ).send( max ? "setMaxProgress" : "setProgress", progress );
+}
+
+
+void KSMServer::upAndRunning( const QString& msg )
+{
+    DCOPRef( "ksplash" ).send( "upAndRunning", msg );
+    XEvent e;
+    e.xclient.type = ClientMessage;
+    e.xclient.message_type = XInternAtom( qt_xdisplay(), "_KDE_SPLASH_PROGRESS", False );
+    e.xclient.display = qt_xdisplay();
+    e.xclient.window = qt_xrootwin();
+    e.xclient.format = 8;
+    assert( strlen( msg.latin1()) < 20 );
+    strcpy( e.xclient.data.b, msg.latin1());
+    XSendEvent( qt_xdisplay(), qt_xrootwin(), False, SubstructureNotifyMask, &e );
+}
+
+// these two are in the DCOP interface but I have no idea what uses them
+// Remove for KDE4
+void KSMServer::restoreSessionInternal()
+{
+    autoStart1Done();
+}
+
+void KSMServer::restoreSessionDoneInternal()
+{
+    autoStart2Done();
+}