diff -r 33a5d2bbf6fc -r 73a1feb507fb mmsharing/mmshengine/src/musengsessionmanager.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmsharing/mmshengine/src/musengsessionmanager.cpp	Tue Aug 31 15:12:07 2010 +0300
@@ -0,0 +1,186 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+#include "musengsessionmanager.h"
+#include "musenglivesession.h"
+#include "musengclipsession.h"
+#include "musengreceivesession.h"
+#include "musengtwowaysession.h"
+#include "musengtwowayrecvsession.h"
+#include "mussessionproperties.h"
+#include "muspropertywatch.h"
+#include <lcsession.h>
+#include <lcuiprovider.h>
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+//
+CMusEngSessionManager* CMusEngSessionManager::NewL()
+    {
+    CMusEngSessionManager* self = new( ELeave )CMusEngSessionManager();
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+        
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+//  
+CMusEngSessionManager::~CMusEngSessionManager()
+    {
+    delete iUseCaseWatch;
+    delete iSession;
+    }
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+//
+CMusEngSessionManager::CMusEngSessionManager()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+//
+void CMusEngSessionManager::ConstructL()
+    {
+    TInt useCase;
+    User::LeaveIfError( RProperty::Get( NMusSessionApi::KCategoryUid, 
+                                        NMusSessionApi::KUseCase, 
+                                        useCase ) );    
+    iSession = CreateMusSessionL( 
+        static_cast< MultimediaSharing::TMusUseCase >( useCase ) );
+    
+    iUseCaseWatch = CMusPropertyWatch::NewL( 
+        *this, NMusSessionApi::KCategoryUid, NMusSessionApi::KUseCase );
+    }
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+//
+MLcSession& CMusEngSessionManager::Session()
+    {
+    return *iSession;
+    }
+
+// -----------------------------------------------------------------------------
+// If usecase changes while background startup is active, client is
+// notified about change by bringing it to foreground and changing current
+// active session. Old session is terminated immediately after notification.
+// -----------------------------------------------------------------------------
+//
+void CMusEngSessionManager::PropertyChanged( 
+    const TUint /*aKey*/, 
+    const TInt aValue )
+    {
+    MUS_LOG1( "mus: [ENGINE] -> CMusEngSessionManager::PropertyChanged, val:%d", 
+              aValue )
+    
+    if ( iSession->IsBackgroundStartup() && aValue != iCurrentUseCase )
+        {
+        MUS_LOG( "mus: [ENGINE]    Usecase changed!" )
+        MLcUiProvider* uiProvider = iSession->LcUiProvider();
+        if ( uiProvider )
+            {
+            CMusEngMceSession* newSession = NULL;
+            TRAP_IGNORE( newSession = CreateMusSessionL( 
+                    static_cast< MultimediaSharing::TMusUseCase >( aValue ) ) );
+            if ( newSession )
+                {
+                MUS_LOG( "mus: [ENGINE]     Set new active session" )
+                CMusEngMceSession* oldSession = iSession;
+                iSession = newSession;
+                iSession->SetForegroundStatus( ETrue );
+                uiProvider->HandleForegroundStatus( ETrue );
+                delete oldSession;
+                }
+            }
+        }
+    
+    MUS_LOG( "mus: [ENGINE] <- CMusEngSessionManager::PropertyChanged" )
+    }
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+//
+void CMusEngSessionManager::HandlePropertyError( const TInt /*aReason*/ )
+    {
+    // NOP
+    }
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+//
+TBool CMusEngSessionManager::IsFeatureSupported( TLcFeature aLcFeature )
+    {
+    return ( aLcFeature == ELcShowInvitingNote ||
+             aLcFeature == ELcShowWaitingNote ||
+             aLcFeature == ELcShowAcceptQuery );
+    }
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+//
+CMusEngMceSession* CMusEngSessionManager::CreateMusSessionL( 
+    MultimediaSharing::TMusUseCase aUseCase )
+    {
+    CMusEngMceSession* session = NULL;
+    switch ( aUseCase ) 
+        {
+        case MultimediaSharing::EMusLiveVideo:
+            {
+            session = CMusEngLiveSession::NewL();
+            break;
+            }
+        case MultimediaSharing::EMusClipVideo:
+            {
+            session = CMusEngClipSession::NewL();
+            break;
+            }            
+        case MultimediaSharing::EMusReceive:
+            {
+            session = CMusEngReceiveSession::NewL();
+            break;
+            }
+        case MultimediaSharing::EMusTwoWayVideo:    
+            {
+            session = CMusEngTwoWaySession::NewL();
+            break;
+            }
+        case MultimediaSharing::EMusReceiveTwoWayVideo:    
+            {
+            session = CMusEngTwoWayRecvSession::NewL();
+            break;
+            }
+        default:
+            User::Leave( KErrNotSupported );
+            break;
+        }
+    iCurrentUseCase = aUseCase;
+    return session;
+    }
+
+// End of File