/*

* Copyright (c) 2007-2008 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:  single entry context observer implementation class

*

*/

#ifndef CIMCVENGINECONTEXTOBSERVER_H_

#define CIMCVENGINECONTEXTOBSERVER_H_

// INCLUDES

#include <e32base.h>

#include <ximpcontextobserver.h>

#include <ximpcontext.h>

#include <ximpcontextstate.h>

#include "mimcvenginenewmessagehandler.h"

// CLASS DESCRIPTION

class TIMCVStateEnums

	{

public:

	enum TIMCVOpersationState

			{

			EIMCVUnknown = -1,

			EIMCVLogging,

			EIMCVLoggingOut,

			EIMCVSendingMsg	

			};	

	};

/**

 * ximp context observer for usage scenario tests.

 */

class CIMCVEngineContextObserver : public CBase,

								  public MXIMPContextObserver,

								  public MIMCVEngineServiceSessionObserver

    {

    enum TXIMPReqType

	    {

	    EReqUnknown = -1,

	    ELoginReq,

	    ELogoutReq

	    };

public:

   /**

	* Two-phased constructor.

	*/

	static CIMCVEngineContextObserver* NewL();

	/**

	* Two-phased constructor.

	*/

    static CIMCVEngineContextObserver* NewLC();

    /**

	* CIMCVEngineContextObserver

	*/

    CIMCVEngineContextObserver();

    /**

	* ~CIMCVEngineContextObserver

	*/

    ~CIMCVEngineContextObserver();

    /**

	* GetConnectedSessionL 

	* bind to the same session to the ximpfw

	*@param aContext, context to ximpfw

	*@param aProtocolUid, uid of protocol used 

	*/

    void GetConnectedSessionL(MXIMPContext& aContext, TInt aServiceId, TUid aProtocolUid );

     /**

	* ReleaseConnectionL 

	* releasse the  session to the ximpfw

	*@param aContext, context to ximpfw

	*/

    void ReleaseConnectionL(MXIMPContext& aContext);

    /**

	* IsLoggedIn 

	* return ETrue if binded

	*/

    TBool IsLoggedIn() const;

	/**

	* SetLoggedIn 

	* ETrue if binded

	*/

    void SetLoggedIn(TBool aState) ;

public : // MIMCVEngineServiceSessionObserver 

	/**

	* RegisterObserver 

	* register to listen the new message 

	*/

	void RegisterObserver(MIMCVEngineServiceSessionHandler* aObserver)  ;

   	/**

	* UnRegisterObserver 

	* unregister the message observer

	*/

	void UnRegisterObserver(MIMCVEngineServiceSessionHandler* aObserver)  ;

public:

    /**

     * HandleximpContextEvent method from context obsrver  

     * ximp framework

     * @param aContext

     * @param aEvent, event  

     */

    void HandlePresenceContextEvent( const MXIMPContext& aContext,

                                     const MXIMPBase& aEvent );

private: 

   	/**

     *constructL 

     */

    void ConstructL();

private:  //Data

    //OWN: Result code from waited request

    // owned 

    TBool iLoggedIn;

    // login state    		

	//owned , to handle the recieving ,messages

    MIMCVEngineServiceSessionHandler* iSessionObserver;

	// owned, wait for login\logout to complete

	CActiveSchedulerWait iWait;

	// ongoing reuest id

	TIMCVStateEnums::TIMCVOpersationState iOngoingOperation;

	TXIMPRequestId iCurrentXIMPReq;

	TXIMPReqType iCurrentReqType;

    };

#endif //CConversationContextObserver_H_