/*

* Copyright (c) 2006 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:    Data Source Task MDE Thumbnail

*

*/

#ifndef GLXDATASOURCETASKMDETHUMBNAIL_H_

#define GLXDATASOURCETASKMDETHUMBNAIL_H_

/**

 * @author Simon Brooks, Alex Birkett

 */

#include "glxdatasourcetaskmdeattribute.h"

#ifdef USE_S60_TNM

#include "mthumbnailfetchrequestobserver.h"

#endif

#include <mglxtnthumbnailcreatorclient.h>

#include <glxthumbnailrequest.h>

/**

 *  CGlxDataSourceTaskMdeThumnail class 

 *  Services thumbnail requests

 */

NONSHARABLE_CLASS(CGlxDataSourceTaskMdeThumbnail) : public CGlxDataSourceTaskMde 

#ifdef USE_S60_TNM

									                , public MThumbnailFetchRequestObserver

#else									                

									                , public MGlxtnThumbnailCreatorClient

#endif									                

	{

public:

    /**

	 * Constructor

	 * @param aRequest thumbnail request to service

	 * @param aObserver observer

	 * @param aDataSource data source

	 */

	CGlxDataSourceTaskMdeThumbnail(CGlxThumbnailRequest* aRequest, 

			MGlxDataSourceRequestObserver& aObserver, CGlxDataSource* aDataSource);

    /**

     * Destructor

     */

    ~CGlxDataSourceTaskMdeThumbnail();

private: // From CGlxDataSourceTask     

    /**

     * See @ref CGlxDataSourceTask::ExecuteRequestL

     */ 

    void ExecuteRequestL();

    /**

     * See @ref CGlxDataSourceTask::HandleRequestComplete

     */ 

    void HandleRequestComplete(TInt aError);

private: // From CGlxDataSourceTaskMde

    /**

     * See @ref CGlxDataSourceTaskMde::DoHandleQueryCompletedL

     */ 

    void DoHandleQueryCompletedL(CMdEQuery& aQuery);

#ifdef USE_S60_TNM

private: //MThumbnailFetchRequestObserver

    void ThumbnailFetchComplete(TInt aError);

    void FetchFileInfoL();

#endif

private: // From MGlxtnThumbnailCreatorClient

    /**

     * See @ref MGlxtnThumbnailCreatorClient::ThumbnailFetchComplete

     */ 

    void ThumbnailFetchComplete(const TGlxMediaId& aItemId,

                            TGlxThumbnailQuality aQuality, TInt aErrorCode);

    /**

     * See @ref MGlxtnThumbnailCreatorClient::ThumbnailDeletionComplete

     */

    void ThumbnailDeletionComplete(const TGlxMediaId& aItemId, TInt aErrorCode);

    /**

     * See @ref MGlxtnThumbnailCreatorClient::FilterAvailableComplete

     */

    void FilterAvailableComplete(const RArray<TGlxMediaId>& aIdArray, TInt aErrorCode);

    /**

     * See @ref MGlxtnThumbnailCreatorClient::FetchFileInfoL

     */

    void FetchFileInfoL(CGlxtnFileInfo* aInfo, const TGlxMediaId& aItemId,

                    TRequestStatus* aStatus);

    /**

     * See @ref MGlxtnThumbnailCreatorClient::CancelFetchUri

     */

    void CancelFetchUri(const TGlxMediaId& aItemId);

    /**

     * See @ref MGlxtnThumbnailCreatorClient::ThumbnailStorage

     */

    MGlxtnThumbnailStorage* ThumbnailStorage();

private:

 	void HandleThumbnailFetchCompleteL(const TGlxMediaId& aId,

		TGlxThumbnailQuality aQuality);	

 	void DoHandleContainerFirstItemQueryCompletedL();

 	void CompleteFetchFileInfoL(CMdEObject* aItem);

private:

	void CompleteThumbnailRequest(TInt aError);

private:

    CGlxtnFileInfo* iTnFileInfo;

    TRequestStatus* iTnRequestStatus;

    TBool iTnRequestInProgress;

	};

#endif // GLXDATASOURCETASKMDETHUMBNAIL_H_