diff -r 000000000000 -r 5e5d6b214f4f servicewidget/servicewidgetdatapublisher/inc/cservicewidgetmessagehandler.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/servicewidget/servicewidgetdatapublisher/inc/cservicewidgetmessagehandler.h	Tue Feb 02 10:12:18 2010 +0200
@@ -0,0 +1,149 @@
+/*
+* 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
+ *                
+ *
+*/
+
+ 
+
+#ifndef CSERVICEWIDGETMESSAGEHANDLER_H
+#define CSERVICEWIDGETMESSAGEHANDLER_H
+
+#include <e32base.h>
+// imcache
+#include <mimcacheeventhandler.h>
+#include <imcachedefs.h>
+
+// farword declaration
+class MIMCacheAccessor;
+class CIMCacheFactory;
+class MServiceWidgetNewMessageObserver;
+
+const TUid KConversationViewAppUid = {0x20012425};
+const TUid KIMPhoneBookUid = {0x101f4cce};
+
+/**
+ * @class im cache message handler class implementation
+ * @since 5.0
+ */
+ 
+class CServiceWidgetMessageHandler 	 : public CBase,
+                               	   public MIMCacheEventHandler
+{
+
+public:
+    
+    /**
+      * Two-phased constructor.
+      * @param aMessageObserver, refernce to content handler
+      * @param aServiceId, service id to monitor
+      * @param aOwnUserId, own user id
+      */
+     static CServiceWidgetMessageHandler* NewL(MServiceWidgetNewMessageObserver& aMessageObserver,
+     								  TInt aServiceId, 
+     								  const TDesC& aOwnUserId );
+
+      /**
+      * Two-phased constructor.
+      * @param aMessageObserver, refernce to content handler
+      * @param aServiceId, service id to monitor
+      * @param aOwnUserId, own user id
+      */
+     static CServiceWidgetMessageHandler* NewLC(MServiceWidgetNewMessageObserver& aMessageObserver,
+     									 TInt aServiceId, 
+     									 const TDesC& aOwnUserId  );
+     
+     /**
+      * Standard C++ destructor
+      */    
+     ~CServiceWidgetMessageHandler();
+     
+public : // new methods 
+	
+		/**
+		* get the unread counts
+		* @return count
+		*/
+		TInt GetUnreadMessageCountL();
+
+		/**
+		* get the unread sender
+		* @return sender
+		*/
+		const TDesC& GetUnreadSenderId() ;
+		
+		/** check if only one sender or multiple 
+		* @return ETrue or False
+		*/
+		TBool IsSingleMessageSender(); 
+
+
+public:   // from MIMCacheEventHandler
+    
+    		/**
+    	* Gets called when data update is available.
+    	* Client can then decide wether to use the old one
+    	* or the updated one.
+    	* @param aNewMessage, new message details
+       	*/
+        void HandleIMCacheEventL(TIMCacheEventType aEvent, TAny* aChatMessage = NULL ) ;
+     
+        
+              
+private: // Implementation
+
+        /**
+         * Standard C++ constructor
+         */    
+        CServiceWidgetMessageHandler(MServiceWidgetNewMessageObserver& aMessageObserver );
+        
+        /**
+         * Performs the 2nd phase of construction.
+         * @param aOwnUserId, user id
+         */        
+        void ConstructL( const TDesC& aOwnUserId, TInt aServiceId  );
+        
+        /**
+         * serach the given id in array 
+         * @param aNewSenderId, sender user id
+         * @return ETrue if found
+         */    
+        TBool IsExistInSendersArrayL( const TDesC& aNewSenderId ) ;
+        
+        /**
+         * synchronized the senders array by deleting the sender
+         * which is not having  any unread message
+         */    
+        void SynchronizeSendersArrayL() ;
+        
+        /*
+         * plays the msg tone for incoming messages
+         * 
+         */
+        void PlayMsgAlertToneL();
+
+private: // Data
+		// not owns , reference to contententpritizer
+		MServiceWidgetNewMessageObserver& iMessageObserver;
+		// owns : im cache accessor
+		MIMCacheAccessor* iAccessor;
+		//owns : im cache factory
+		CIMCacheFactory* iIMCacheFactory;
+		// owns : sender is unique or multiple sender
+		RPointerArray<HBufC> iSendersArray;
+};
+
+#endif /*CSERVICEWIDGETMESSAGEHANDLER_H*/
+