/*

* Copyright (c) 2008-2009 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:  Openchats 

*

*/

#ifndef CIMCVENGINEOPENCHATS_H

#define CIMCVENGINEOPENCHATS_H

//includes

#include <e32std.h>

#include <e32base.h>

#include "mimcvengineopenchats.h"

#include "mimcvenginenewmsgobserver.h"

#include "mimcvenginechatlistobserver.h"

//forward declarations

class CCAConversationItemPC;

class CIMCVEngineMessageHandler;

class MIMCVEngineChatInterface;

class MIMCVEngineMessageReadInterface;

// CLASS DECLARATION

/**

 *  CIMCVEngineOpenChats

 *

 *  @lib imcvuiengine.dll

 *  @since 5.0

 */

class CIMCVEngineOpenChats : public CBase,

								 public MIMCVEngineOpenChats,

								 public MIMCVEngineNewMsgObserver,

								 public MIMCVEngineChatListObserver

    {    

	public: // From MIMCVEngineOpenChats

		/**

         * @see MIMCVEngineOpenChats

         */

		TPtrC GetDisplayNameL(TInt aIndex) const;

		/**

         * @see MIMCVEngineOpenChats

         */

		const TDesC& GetTargetIdL(TInt aIndex) const;

		/**

         * @see MIMCVEngineOpenChats

         */

		TInt Count() const;

		/**

         * @see MIMCVEngineOpenChats

         */		

		void SetActiveItemL( const TInt aIndex );

		/**

         * @see MIMCVEngineOpenChats

         */		

		const TDesC& GetActiveItem() const;

		/**

         * @see MIMCVEngineOpenChats

         */	    

	    TBool IsMsgPendingL( const TInt aIndex ) const;

	    /**

         * @see MIMCVEngineOpenChats

         */	    

	    TInt FindIndexL(const TDesC& aItem);

	    /**

         * @see MIMCVEngineOpenChats

         */

	    void RegisterObserver(MIMCVEngineOpenChatsObserver* aChatObserver);

	    /**

         * @see MIMCVEngineOpenChats

         */

	    void UnRegisterObserver();

	    void ResetL();

	private:

	    /** 

		 * Inserts the chat container into the Conversations List

		 * @param aContainerInfo - Conversation/Chat Container Info

		 */	    

	    void Insert( MIMCVEngineMessageReadInterface* aContainerInfo );

	    /** 

		 * Delets the chat container from the Conversations List

		 * @param aContainerInfo - Conversation/Chat Container Info

		 */

	   	void RemoveL( MIMCVEngineMessageReadInterface& aContainerInfo );	    

	private:

		/**

         * @see MIMCVEngineChatListObserver

         */	

		void HandleChatListEvent( TInt aServiceId , TChatListEventType aEvent, 

						MIMCVEngineMessageReadInterface* aContainerInfo

						) ;

    public:                     

		/**

		* NewL - returns the instance to CIMCVEngineOpenChats

		*/

		static CIMCVEngineOpenChats* NewL(CIMCVEngineMessageHandler& aMessageHandler, 

										MIMCVEngineChatInterface& aChatInterface,

										TInt aServiceId );

		/**

		* Destructor

		*/

		virtual ~CIMCVEngineOpenChats();

	private:

		/**

         * @see MIMCVEngineNewMsgObserver

         */	

		void HandleChatEventL( TChatEventType aEvent, MIMCVEngineMessage* aMessage = NULL ) ;

	private: //Two phased ctor

		/**

		*CIMCVEngineOpenChats - ctor

		*/		

		CIMCVEngineOpenChats(CIMCVEngineMessageHandler& aMessageHandler,

							MIMCVEngineChatInterface& aChatInterface);

		/**

		*ConstructL 

		*/

		void ConstructL( TInt aServiceId );

    private: //Data 

		//Doesn't own

		RPointerArray <MIMCVEngineMessageReadInterface> iOpenChatsArray;

		//holds the index of the active tab item

		TInt iActiveItem;		

		CIMCVEngineMessageHandler& iMessageHandler;	

		//Doesnt Own

		MIMCVEngineOpenChatsObserver* iChatObserver;

		//Doesnt Own- Chat Interface

		MIMCVEngineChatInterface& iChatInterface;			

    };

#endif      // CIMCVENGINEOPENCHATS_H

// End of File