--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/servicewidget/servicewidgetdatapublisher/src/cservicewidgetmessagehandler.cpp	Tue Feb 02 10:12:18 2010 +0200
@@ -0,0 +1,249 @@
+/*
+* Copyright (c) 2008 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:  message handler notification
+ *                
+ *
+*/
+
+ 
+#include "cservicewidgetmessagehandler.h"
+#include "mservicewidgetobservers.h"
+#include "swpdebugtrace.h"
+//im cache
+#include  <cimcachefactory.h>
+#include  <mimcacheaccessor.h>
+#include <apgtask.h> 
+#include <coemain.h>
+
+// ---------------------------------------------------------------------------
+// CServiceWidgetMessageHandler::CServiceWidgetMessageHandler
+// ---------------------------------------------------------------------------
+// 
+CServiceWidgetMessageHandler::CServiceWidgetMessageHandler(
+						MServiceWidgetNewMessageObserver& aMessageObserver )
+	:iMessageObserver( aMessageObserver )
+   {
+   TRACE_SWP(TXT("CServiceWidgetMessageHandler::CServiceWidgetMessageHandler") );
+   }
+
+// ---------------------------------------------------------------------------
+// CServiceWidgetMessageHandler::NewL
+// ---------------------------------------------------------------------------
+// 
+CServiceWidgetMessageHandler* CServiceWidgetMessageHandler::NewL( 
+						MServiceWidgetNewMessageObserver& aMessageObserver,
+						TInt aServiceId, 
+     				    const TDesC& aOwnUserId )
+    {
+    TRACE_SWP(TXT("CServiceWidgetMessageHandler::NewL() start") );
+    CServiceWidgetMessageHandler* self = NewLC(aMessageObserver,
+    									aServiceId,
+    									aOwnUserId);
+    CleanupStack::Pop(self);
+    TRACE_SWP(TXT("CServiceWidgetMessageHandler::NewL() end") );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// CServiceWidgetMessageHandler::NewLC
+// ---------------------------------------------------------------------------
+// 
+CServiceWidgetMessageHandler* CServiceWidgetMessageHandler::NewLC( 
+					   MServiceWidgetNewMessageObserver& aMessageObserver,
+						TInt aServiceId, 
+				 		const TDesC& aOwnUserId )
+    {
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::NewLC() start") );
+    CServiceWidgetMessageHandler* self =
+        new (ELeave) CServiceWidgetMessageHandler(aMessageObserver );
+    CleanupStack::PushL(self);
+    self->ConstructL( aOwnUserId ,aServiceId );
+    TRACE_SWP(TXT("CServiceWidgetMessageHandler::NewLC() end") );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// CServiceWidgetMessageHandler::ConstructL
+// ---------------------------------------------------------------------------
+// 
+void CServiceWidgetMessageHandler::ConstructL( const TDesC& aOwnUserId, TInt aServiceId )
+    {
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::ConstructL() start") );
+   	iIMCacheFactory = CIMCacheFactory::InstanceL(); 
+	iAccessor = iIMCacheFactory->CreateAccessorL( aServiceId, aOwnUserId );
+	iAccessor->RegisterObserverL(*this);
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::ConstructL() end") );
+	}
+
+// ---------------------------------------------------------------------------
+// CServiceWidgetMessageHandler::~CServiceWidgetMessageHandler
+// ---------------------------------------------------------------------------
+// 
+CServiceWidgetMessageHandler::~CServiceWidgetMessageHandler()
+    {
+    TRACE_SWP(TXT("CServiceWidgetMessageHandler::~CServiceWidgetMessageHandler() start") );
+  	if( iIMCacheFactory )
+		{
+		if( iAccessor )
+		    {
+	    	iAccessor->UnRegisterObserver(*this);	
+	    	}
+		CIMCacheFactory::Release();  	
+		}
+	iSendersArray.ResetAndDestroy();
+	
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::~CServiceWidgetMessageHandler() end") );
+    }
+
+// -----------------------------------------------------------------------------
+// CServiceWidgetMessageHandler::GetUnreadMessageCountL
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//	
+TInt CServiceWidgetMessageHandler::GetUnreadMessageCountL()
+	{
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::GetUnreadMessageCountL()") );
+	return iAccessor->GetAllUnreadMessageCountL() ;
+	}
+//-----------------------------------------------------------------------------
+// CServiceWidgetMessageHandler::HandleIMCacheEventL
+// ( Other items commented in header )
+//-----------------------------------------------------------------------------  
+
+void CServiceWidgetMessageHandler::HandleIMCacheEventL(TIMCacheEventType aEventType, TAny* aChatMessage  )
+	{
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::HandleIMCacheEventL() start") );
+	switch( aEventType )
+		{
+		case EIMCacheUnreadMessage :
+			{
+			TRACE_SWP(TXT("CServiceWidgetMessageHandler::HandleIMCacheEventL() EIMCacheUnreadMessage ") );
+			if (!aChatMessage)
+				{
+				return;	
+				}
+			SIMCacheMessageData* chatData = static_cast<SIMCacheMessageData*>( aChatMessage ) ;
+			// check that buddy id exists
+			if ( chatData->iBuddyId )
+			    {
+			    TPtrC buddyId = chatData->iBuddyId->Des();
+				TPtrC messageText = chatData->iText->Des();
+				if( !IsExistInSendersArrayL( buddyId ) ) // append only if not exist 
+					{
+					HBufC* sender = buddyId.AllocLC();
+					if( sender )
+						{
+						iSendersArray.InsertL( sender ,0 ); // ownership to array
+						CleanupStack::Pop(sender); //	
+						}
+					}
+				iMessageObserver.HandleNewMessageL( buddyId, messageText );
+			    }
+			break;	
+			}
+		case EIMCacheUnreadChange :
+			{
+			TRACE_SWP(TXT("CServiceWidgetMessageHandler::HandleIMCacheEventL() EIMCacheUnreadChange ") );
+			SynchronizeSendersArrayL();
+		    iMessageObserver.HandleCountChangedL();
+			break;	
+			}
+		default:
+			{
+			break;
+			}
+		}
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::HandleIMCacheEventL() end ") );
+	}
+
+// -----------------------------------------------------------------------------
+// CServiceWidgetMessageHandler::GetUnreadSenderId
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+const TDesC& CServiceWidgetMessageHandler::GetUnreadSenderId() 
+	{
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::GetUnreadSenderId() start") );
+	if( iSendersArray.Count() )
+		{
+		TRACE_SWP(TXT("CServiceWidgetMessageHandler::GetUnreadSenderId() end") );
+		return *( iSendersArray[ 0 ] ); //  latest sender always on top
+		}
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::GetUnreadSenderId() end") );
+	return KNullDesC;
+	}
+
+// -----------------------------------------------------------------------------
+// CServiceWidgetMessageHandler::IsSingleMessageSender
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+TBool CServiceWidgetMessageHandler::IsSingleMessageSender() 
+	{
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::IsSingleMessageSender()") );
+	return ( iSendersArray.Count() == 1 );
+	}
+	
+// -----------------------------------------------------------------------------
+// CServiceWidgetMessageHandler::IsExistInSendersArrayL
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+TBool CServiceWidgetMessageHandler::IsExistInSendersArrayL( const TDesC& aNewSenderId ) 
+	{
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::IsExistInSendersArrayL() start") );
+	TInt count = iSendersArray.Count();
+	for( TInt i=0; i<count; i++ )
+		{
+		HBufC* senderId = iSendersArray[i];
+		if( senderId && aNewSenderId.Compare( *senderId ) == 0 )	
+			{
+			TRACE_SWP(TXT("CServiceWidgetMessageHandler::IsExistInSendersArrayL() end") );
+			return  ETrue;	
+			}
+		}
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::IsExistInSendersArrayL() end") );
+	return EFalse;
+	}
+// -----------------------------------------------------------------------------
+// CServiceWidgetMessageHandler::SynchronizeSendersArrayL
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CServiceWidgetMessageHandler::SynchronizeSendersArrayL() 
+	{
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::SynchronizeSendersArrayL() start") );
+	TInt count = iSendersArray.Count();
+	for( TInt i=0; i < count; i++ )
+		{
+		HBufC* senderId = iSendersArray[i];
+		if( senderId )	
+			{
+			TInt unreadCount = iAccessor->GetUnreadMessageCountL(*senderId  ) ;
+			if( !unreadCount )
+				{
+				iSendersArray.Remove( i );
+				delete 	senderId;
+				senderId = NULL;
+				iSendersArray.Compress();
+				break;
+				}
+			}
+		}
+	TRACE_SWP(TXT("CServiceWidgetMessageHandler::SynchronizeSendersArrayL() end") );
+	}		
+	
+// end of file
+
+