/*

* 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 the License "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: 

*

*/

#ifndef MVCXNSCONTENTPROVIDEROBSERVER_H

#define MVCXNSCONTENTPROVIDEROBSERVER_H

// INCLUDES

#include <e32std.h>

#include <e32base.h>

#include "CIptvUtil.h" 

class CVcxNsContent;

// CLASS DECLARATION

/**

 *  MVcxNsContentProviderObserver

 * 

 *  @lib vcxnsuiengine.lib

 */

class MVcxNsContentProviderObserver

    {

public:

    /**

     * Notify content's data has been updated.

     *

     * @param aIndex Updated item's index

     */

    virtual void ContentUpdated( TInt aIndex ) = 0;

    /**

     * Full view data needs to be updated.

     */

    virtual void RefreshView() = 0;

    /**

     * Application state needs to be updated.

     */

    virtual void HandleAppStateChangedL() = 0;

    /**

     * Epg update is ongoing, show the notification.

     * When downloading and parsing the xml, both parameters are 0.

     * 

     * @param aShow If ETrue, show the note, if EFalse, hide it.

     * @param aDownloadedTbns count of downloaded thumbnails.

     * @param aTotalTbns Total count of thumbnails to be downloaded.

     */

    virtual void ShowUpdatingNoteL( 

            TBool aShow, 

            TInt aDownloadedTbns, 

            TInt aTotalTbns ) = 0;

    /**

     * Handle error 

     * 

     * @param aError Error to handle in UI

     */

    virtual void HandleUpdateErrorL( TInt aError ) = 0;

    /**

     * Handle download error 

     * 

     * @param aError Error to handle in UI

     * @param aContent Details of the video which download has failed.

     */

    virtual void HandleDownloadErrorL( 

        TIptvDlError aError, 

        CVcxNsContent& aContent ) = 0;

    };

#endif // MVCXNSCONTENTPROVIDEROBSERVER_H