/*

* Copyright (c) 2005-2007 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:  Transaction element for publishing empty content

*

*/

#ifndef C_EMPTYCONTENTTRANSACTIONELEMENT_H

#define C_EMPTYCONTENTTRANSACTIONELEMENT_H

#include "transactionelement.h"

namespace AiUtility

    {

    class CContentPriorityMap;

    }

namespace AiXmlUiController

{

/**

 *  @ingroup group_xmluicontroller

 * 

 *  Transaction element for publishing empty content to UI element.

 *  Empty content is published by applying empty content policy

 *

 *  @lib AiXmlUiMain

 */

class CEmptyContentTransactionElement : public CTransactionElement

    {

public:

    static CEmptyContentTransactionElement*

        NewL( AiUtility::CContentPriorityMap& aContentPriorityMap );

    virtual ~CEmptyContentTransactionElement();

    /**

     * Initializes this element to publish into the given UI element.

     *

     * @param aTarget target UI element.

     * @param aIndex Newsticker title index to clean

     */

    void InitializeL( CXnNodeAppIf& aTarget,

                      TInt aIndex );

protected:  // from base class CTransactionElement

    void Reset();

    void UpdateDataL();

private:

    CEmptyContentTransactionElement(

        AiUtility::CContentPriorityMap& aContentPriorityMap );

    // Index for newsticker title to clean.

    TInt iIndex;

    };

}   // namespace AiXmlUiController

#endif // C_EMPTYCONTENTTRANSACTIONELEMENT_H