/*

* Copyright (c) 2008-2009 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:    Blocking attribute retriever

*

*/

#ifndef C_GLXATTRIBUTERETRIEVER_H

#define C_GLXATTRIBUTERETRIEVER_H

#include <e32std.h>

#include "mglxmedialistobserver.h"

// Forward declarations

class MGlxFetchContext;

class MGlxMediaList;

class CGlxAttributeRetrieverObj;

const TInt KGlxFetchContextPriorityBlocking = KMaxTInt32;

/**

 *  GlxAttributeRetriever

 *

 *  This class blocks until all requested metadata has been retrieved

 *

 *	@ingroup mlm_media_list_manager_design

 *  @lib glxuiutilities.lib

 */

NONSHARABLE_CLASS( GlxAttributeRetriever )

	{

public:

	/**

	 * Retrieves all metadata required by the context

	 * @param aContext Fetch context that informs what metadata needs to be retrieved

	 * @param aList List for which metadata is required for

	 * @param aShowDialog Whether to show a wait dialog while retrieval takes place. Should only

	 *                    be false if there is another wait dialog already active

	 * @return Error code

	 */

	IMPORT_C static TInt RetrieveL(const MGlxFetchContext& aContext, MGlxMediaList& aList, TBool aShowDialog = ETrue);

	};

#endif // C_GLXATTRIBUTERETRIEVER_H