/*

* 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:  Class handling CCH connection

*

*/

#ifndef     C_LOGSEXTENSIONCCHHANDLER_H

#define     C_LOGSEXTENSIONCCHHANDLER_H

#include <e32base.h>

#include <cchclientserver.h>

#include "mlogsextensioncchhandlerobserver.h"

class RCCHServer;

class RCCHClient;

// CLASS DECLARATION

NONSHARABLE_CLASS( CLogsExtensionCchHandler ) : public CActive

    {

public:

    /**

     * Two-phased constructor.

     *

     * @param aObserver Observer for CCH events

     * @param aServiceId, service id to monitor

     */

    static CLogsExtensionCchHandler* NewL( 

        MLogsExtensionCchHandlerObserver* aObserver,

        TUint aServiceId );

    /**

     * Two-phased constructor

     *

     * @param aObserver Observer for CCH events

     * @param aServiceId, service id to monitor

     */

    static CLogsExtensionCchHandler* NewLC( 

        MLogsExtensionCchHandlerObserver* aObserver,

        TUint aServiceId );

    /**

     * Standard C++ destructor

     */    

    ~CLogsExtensionCchHandler();

    /**

     * Resolves sub service state for given service id

     *

     * @since S60 3.2

     * @param aServiceId, service id

     * @param aCchErr, service error is stored here

     */                                    

    void ResolveSubServiceState( TUint aServiceId, TInt& aCchErr );

private: // From CActive

    /**

     * From CActive

     * Called when asynchronous event occures

     *

     * @since S60 3.2

     */

    void RunL();

    /**

     * From CActive

     * Called when this active object is cancelled.

     *

     * @since S60 3.2

     */

    void DoCancel();

    /**

     * From CActive

     * Asynchronous error

     *

     * @since S60 3.2

     * @param aError, error code

     * @return TInt, error 

     */

    TInt RunError( TInt aError );

private: // Implementation

    /**

     * Standard C++ constructor

     */    

    CLogsExtensionCchHandler();

    /**

     * Performs the 2nd phase of construction.

     *

     * @param aObserver, Observer

     * @param aServiceId, serviceId

     */        

    void ConstructL( 

        MLogsExtensionCchHandlerObserver* aObserver,

        TUint aServiceId );

    /**

     * Gets service state

     *

     * @since S60 3.2

     * @param aServiceSelection service selection for query

     * @param aServiceState service state (result)

     * @return TInt Standard Symbian error code

     */

    TInt GetServiceState( 

        TServiceSelection aServiceSelection, 

        TCCHSubserviceState& aServiceState );

private: // Data

    /** 

     * NOT OWNED

     */

    MLogsExtensionCchHandlerObserver* iObserver;

    /**

     * Own: CCH Server

     */

    RCCHServer* iCchServer;

    /**

     * Own: CCH Client

     */

    RCCHClient* iCchClient;

    /**

     * Stores service status information

     */

    TPckgBuf<TServiceStatus> iServiceStatus;

    /**

     * Stores service selection (ie. sub services we are

     * interested in

     */

    TServiceSelection iServiceSelection;

    };

#endif // C_LOGSEXTENSIONCCHHANDLER_H

// End of file