--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/upnpavcontrolpoint/avcontrolframework/src/upnpstateupdatehandler.cpp	Thu Dec 17 08:52:00 2009 +0200
@@ -0,0 +1,248 @@
+/** @file
+* Copyright (c) 2005-2006 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:  CUpnpStateUpdateHandler
+*
+*/
+
+
+// INCLUDE FILES
+#include "upnpstateupdatehandler.h"
+#include "upnpavcpstring.h"
+
+// CONSTANTS
+using namespace UpnpAVCPStrings;
+// ================= MEMBER FUNCTIONS =======================
+
+// -----------------------------------------------------------------------------
+// CUpnpStateUpdateHandler::CUpnpStateUpdateHandler
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CUpnpStateUpdateHandler::CUpnpStateUpdateHandler( 
+                                         MUpnpAVControlPointObserver& aAVCPObserver,
+                                         CUpnpAVControlPoint& aAVCP )
+    :iAVControlPointObserver( aAVCPObserver ), iAVCP( aAVCP )
+    {
+	}
+
+// -----------------------------------------------------------------------------
+// CUpnpStateUpdateHandler::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CUpnpStateUpdateHandler::ConstructL() 
+	{
+	}
+
+// -----------------------------------------------------------------------------
+// CSuperDir::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CUpnpStateUpdateHandler* CUpnpStateUpdateHandler::NewL(
+            MUpnpAVControlPointObserver& aAVCPObserver,
+            CUpnpAVControlPoint& aAVCP )
+    {
+	CUpnpStateUpdateHandler* self = new (ELeave) CUpnpStateUpdateHandler( 
+        aAVCPObserver, aAVCP );
+	CleanupStack::PushL( self );
+	self->ConstructL();
+	CleanupStack::Pop( self );
+	return self;
+	}
+
+// -----------------------------------------------------------------------------
+// CUpnpStateUpdateHandler::~CUpnpStateUpdateHandler
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CUpnpStateUpdateHandler::~CUpnpStateUpdateHandler()	
+	{
+	}
+
+// -----------------------------------------------------------------------------
+// CUpnpStateUpdateHandler::ContentDirectoryStateUpdated
+// In this function are update events from content directory handled.
+// (other items were commented in a header)
+// -----------------------------------------------------------------------------
+//
+TInt CUpnpStateUpdateHandler::ContentDirectoryStateUpdated( CUpnpDevice& aDevice, 
+                                                   CUpnpService*& aService)
+    {
+    CUpnpStateVariable* systemUpdateId = 
+        aService->StateVariable( KSystemUpdateID );
+    CUpnpStateVariable* containerUpdateIds = 
+        aService->StateVariable( KContainerUpdateIDs );
+    CUpnpStateVariable* transferIds = 
+        aService->StateVariable( KTransferIds );       
+
+    if( !(systemUpdateId || containerUpdateIds || transferIds) )
+        {
+        return KErrArgument;
+        }
+        
+    //
+    if( systemUpdateId )
+        {
+        TLex8 updateidLex( systemUpdateId->Value() );
+        TInt systemUpdate;
+        updateidLex.Val( systemUpdate );
+        iAVControlPointObserver.CdsUpdateEvent(
+            aDevice.Uuid(),
+            systemUpdate
+            );
+        }
+    if( containerUpdateIds )
+        {
+        iAVControlPointObserver.CdsContainerEvent( 
+            aDevice.Uuid(),
+            containerUpdateIds->Value() 
+            );
+        }
+    if( transferIds )
+        {
+        iAVControlPointObserver.CdsTransferEvent( 
+            aDevice.Uuid(),
+            transferIds->Value() 
+            );
+        }
+    return KErrNone;
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpStateUpdateHandler::StateUpdatedL
+// This is the place to start handling state updates
+// (other items were commented in a header)
+// -----------------------------------------------------------------------------
+//
+TInt CUpnpStateUpdateHandler::StateUpdated(CUpnpService*& aService)
+	{
+    TInt err( KErrNone );
+	CUpnpDevice& device = aService->Device();
+    if (aService->ServiceType().Match( KRenderingControl ) != KErrNotFound )
+        {
+        err =  RenderingControlStateUpdated( device, aService );
+        }
+    else if (aService->ServiceType().Match( KConnectionManager ) != KErrNotFound )
+        {
+        err = ConnectionManagerStateUpdated( device, aService );
+        }
+    else if (aService->ServiceType().Match( KAVTransport ) != KErrNotFound )
+        {
+        err = AVTransportStateUpdated( device, aService );        
+        }
+    else if (aService->ServiceType().Match( KContentDirectory ) != KErrNotFound )
+        {
+        err = ContentDirectoryStateUpdated( device, aService );        
+        }
+    else
+        {
+        err = KErrGeneral;
+        }
+    return err;
+
+    }
+// -----------------------------------------------------------------------------
+// CUpnpStateUpdateHandler::RenderingControlStateUpdated
+// In this function are rendering control events are handled.
+// (other items were commented in a header)
+// -----------------------------------------------------------------------------
+//
+TInt CUpnpStateUpdateHandler::RenderingControlStateUpdated( CUpnpDevice& aDevice,
+                                                        CUpnpService*& aService )
+    {
+    CUpnpStateVariable* lastChange = aService->StateVariable( KLastChange );
+    if( !lastChange )
+        {
+        return KErrArgument;
+        }
+    else
+        {
+        iAVControlPointObserver.RcLastChangeEvent(
+            aDevice.Uuid(),
+            lastChange->Value() 
+            );
+        return KErrNone;
+        }
+    }
+// -----------------------------------------------------------------------------
+// CUpnpStateUpdateHandler::KAVTransportStateUpdatedL
+// In this function are updates for mediarenderer handled.
+// (other items were commented in a header)
+// -----------------------------------------------------------------------------
+//
+TInt CUpnpStateUpdateHandler::AVTransportStateUpdated( CUpnpDevice& aDevice,
+                                                   CUpnpService*& aService )
+    {
+    CUpnpStateVariable* lastChange = aService->StateVariable( KLastChange );
+    if( !lastChange )
+        {
+        return KErrArgument;
+        }
+    else
+        {
+        iAVControlPointObserver.AvtLastChangeEvent(
+            aDevice.Uuid(),
+            lastChange->Value() 
+            );
+        return KErrNone;
+        }
+    }
+// -----------------------------------------------------------------------------
+// CUpnpStateUpdateHandler::ConnectionManagerStateUpdated
+// In this function are update events from rendering control handled.
+// (other items were commented in a header)
+// -----------------------------------------------------------------------------
+//
+TInt CUpnpStateUpdateHandler::ConnectionManagerStateUpdated(CUpnpDevice& aDevice, 
+                                                        CUpnpService*& aService)
+    {
+    CUpnpStateVariable* source = 
+        aService->StateVariable( KSourceProtocolInfo );
+    CUpnpStateVariable* sink = 
+        aService->StateVariable( KSinkProtocolInfo );
+    CUpnpStateVariable* connections = 
+        aService->StateVariable( KCurrentConnectionIds );       
+    
+    if( !(source || sink || connections) )
+        {
+        return KErrArgument;
+        }
+        
+    if( source )
+        {
+        iAVControlPointObserver.CmSourceEvent(
+            aDevice.Uuid(),
+            source->Value()
+            );
+        }
+    if( sink )
+        {
+        iAVControlPointObserver.CmSinkEvent( 
+            aDevice.Uuid(),
+            sink->Value() 
+            );
+        }
+    if( connections )
+        {
+        iAVControlPointObserver.CmConnectionsEvent( 
+            aDevice.Uuid(),
+            connections->Value() 
+            );
+        }
+
+    return KErrNone;
+    }
+