/*

* Copyright (c) 2009 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:   CVideoThumbnailData stub -class definition for unit testing CVideoListData*

*/

#ifndef __VIDEOTHUMBNAILDATA_H__

#define __VIDEOTHUMBNAILDATA_H__

// INCLUDES

#include <QObject>

#include <QMap>

#include <QPair>

#include <QIcon>

#include <QList>

#include <e32const.h>

#include <mpxitemid.h>

// FORWARD DECLARATIONS

class VideoThumbnailData : public QObject 

{

    Q_OBJECT

public:

    /* 

     * Thumbnail fetch priorities

     */

    enum VideoThumbnailPriority

    {

        VideoThumbnailPriorityLow = 2000,

        VideoThumbnailPriorityMedium = 3000,

        VideoThumbnailPriorityHigh = 5000 

    };

    /**

     * Returns singleton instance for this class.

     *

     * @return The singleton instance.

     * 

     */

    static VideoThumbnailData &instance();

    /**

     * stub:

     * increases gStartFetchingCounter by the count of indexes.     

     * return -1 if gFailFetchTn is true

     * return  0 if gFailFetchTn is false 

     */

    int startFetchingThumbnails(const QList<int> &indexes, VideoThumbnailPriority priority, bool setFetchIndex = true);

    /**

     * stub:

     * increases gStartFetchingCounter by one

     * return -1 if gFailFetchTn is true

     * return  0 if gFailFetchTn is false

     * 

     */

    int startFetchingThumbnail(int mediaId, int priority);

    /**

     * 

     * 

     * 

     */

    const QIcon* getThumbnail( TMPXItemId mediaId );

    /**

    * stub:

    * return -1 if gFailRemoveTn is true

    * return  0 if gFailRemoveTn is false

    * 

    */

    int removeThumbnail( TMPXItemId mediaId );

    /**

     * 

     * 

     */

    const QIcon* defaultThumbnail();

private:

    /**

    * stub:

    * return -1 if gFailInitilize is true

    * return  0 if gFailInitilize is false

    * 

    */

    int initialize();

    /**

     * Default constructor

     */

    VideoThumbnailData();  

    /**

     * Destructor

     */

    ~VideoThumbnailData(); 

public:

    // Testing methods.

    /**

     * sets gFailInitilize 

     */

    static void setInitializationFail(bool fail);

    /**

     * zeroes gStartFetchingCounter 

     */

    static void resetStartFetchingCount();

    /**

     * returns gStartFetchingCounter 

     */

    static int getStartFetchingCount();

    /**

     * zeroes gRemoveCounter 

     */

    static void resetRemoveCount();

    /**

     * returns gRemoveCounter 

     */

    static int getRemoveCount();

signals:

    /**

     * This signal is emitted from thumbnailReadySlot, when 

     * thumbnail generatio nis ready from the tn manager.

     * 

     * Media id for the video is passed along with the signal.

     * 

     * 

     * @param mediaId: id of the video whose thumbnail is ready.

     * 

     */

    void thumbnailsFetched( QList<TMPXItemId>& mediaId );  

private:

    /**

     * empty icon 

     */

    QIcon emptyIcon;

};

#endif  // __VIDEOTHUMBNAILDATA_H__

// End of file