/*

* Copyright (c) 2010 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:   CVcxHgMyVideosThumbnailManager class definition*

*/

#ifndef VCXHGMYVIDEOSTHUMBNAILMANAGER_H

#define VCXHGMYVIDEOSTHUMBNAILMANAGER_H

// INCLUDE FILES

#include <thumbnailmanager.h>

#include <thumbnailmanagerobserver.h>

// FORWARD DECLARATIONS

// CLASS DECLARATION

/**

 *

 * @lib vcxhgmyvideos.lib

 */

NONSHARABLE_CLASS( CVcxHgMyVideosThumbnailManager ) :

        public CBase,

        public MThumbnailManagerObserver 

    {

    public:

        /**

         * Two-phased constructor.

         * 

         * @return New object.

         */

        static CVcxHgMyVideosThumbnailManager* NewL();

        /**

         * Two-phased constructor.

         * 

         * @return New object. 

         */

        static CVcxHgMyVideosThumbnailManager* NewLC();

        /**

         * Destructor.

         */

        virtual ~CVcxHgMyVideosThumbnailManager();

    private: // From MThumbnailManagerObserver

        /**

         * Preview thumbnail generation or loading is complete.

         *

         * @param aThumbnail An object representing the resulting thumbnail.

         * @param aId Request ID for the operation

         */

        void ThumbnailPreviewReady( MThumbnailData& aThumbnail, TThumbnailRequestId aId );

        /**

         * Final thumbnail bitmap generation or loading is complete.

         *

         * @param aError         Error code.

         * @param aThumbnail     An object representing the resulting thumbnail.

         * @param aId            Request ID for the operation.

         */

        void ThumbnailReady( TInt aError, MThumbnailData& aThumbnail, TThumbnailRequestId aId );

    public: // New methods

        /**

         * Peeks if there is thumbnail and fetches it if it exist.

         * No thumbnail creation is started when thumbnail does not exist.

         *

         * @param aSource 

         * @return TThumbnailRequestId.

         */

        TThumbnailRequestId PeekL( CThumbnailObjectSource& aSource );

        /**

         * Gets thumbnail and creates it if it does not exist.

         *

         * @param aSource 

         * @return TThumbnailRequestId.

         */

        TThumbnailRequestId GetL( CThumbnailObjectSource& aSource );

        /**

         * Cancels thumbnail request

         *

         * @param aRequestId

         */

        void Cancel( TThumbnailRequestId aRequestId );

        /**

         * Adds observer.

         *

         * @param aObserver 

         */

        void AddObserverL( MThumbnailManagerObserver& aObserver );

        /**

         * Removes observer.

         *

         * @param aObserver 

         */

        void RemoveObserver( MThumbnailManagerObserver& aObserver );

    private:    

        /**

         * Default constructor

         */

        CVcxHgMyVideosThumbnailManager();

        /**

         * SessionL

         * @return CThumbnailManager ref.

         */

        CThumbnailManager& SessionL();

    private:

        /**

         * S60 Thumbnail Manager.

         * Own.

         */

        CThumbnailManager* iTnManager;

        /** 

         * Used for storing the observers. Pointers are not own.

         */ 

        RPointerArray<MThumbnailManagerObserver> iTnObservers;

        /** 

         * Stores current thumbnail generation flags

         */ 

        CThumbnailManager::TThumbnailFlags iCurrentFlags;

    };

#endif // VCXHGMYVIDEOSTHUMBNAILMANAGER_H