/*

* Copyright (c) 2002 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: 

*    Abstract interface for creating logs extensions.

*

*

*/

#ifndef __MLogsUiExtensionBase_H

#define __MLogsUiExtensionBase_H

// INCLUDES

#include <e32base.h>

// CLASS DECLARATION

/**

 * @internal This interface is internal to Logs.

 *

 * Base interface for Logs UI extensions.

 */

class MLogsUiExtensionBase

    {

    public:

        /**

         * Pushes this object on the cleanup stack.

         */

        void PushL();

    protected:

        /**

         * Destructor.

         */

        virtual ~MLogsUiExtensionBase() =0;

    private:

        friend void Release(MLogsUiExtensionBase*);

        static void CleanupRelease(TAny* aObj);

        /**

         * Implement to release this object and any resources it owns.

         */

        virtual void DoRelease() =0;

    };

inline void MLogsUiExtensionBase::PushL()

    { 

    CleanupStack::PushL(TCleanupItem(CleanupRelease,this)); 

    }

inline MLogsUiExtensionBase::~MLogsUiExtensionBase() 

    {

    }

/**

 * Releases aObj.

 */

inline void Release(MLogsUiExtensionBase* aObj)

    {

    if (aObj)

        {

        aObj->DoRelease();

        }

    }

inline void MLogsUiExtensionBase::CleanupRelease(TAny* aObj)

    { 

    Release(static_cast<MLogsUiExtensionBase*>(aObj)); 

    }

#endif

// End of File