1 /*

     2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:   Blocking attribute retriever

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef C_GLXATTRIBUTERETRIEVER_H

    21 #define C_GLXATTRIBUTERETRIEVER_H

    22 

    23 #include <e32std.h>

    24 #include "mglxmedialistobserver.h"

    25 

    26 // Forward declarations

    27 class MGlxFetchContext;

    28 class MGlxMediaList;

    29 class CGlxAttributeRetrieverObj;

    30 

    31 const TInt KGlxFetchContextPriorityBlocking = KMaxTInt32;

    32 

    33 /**

    34  *  GlxAttributeRetriever

    35  *

    36  *  This class blocks until all requested metadata has been retrieved

    37  *

    38  *	@ingroup mlm_media_list_manager_design

    39  *  @lib glxuiutilities.lib

    40  */

    41 NONSHARABLE_CLASS( GlxAttributeRetriever )

    42 	{

    43 public:

    44 	/**

    45 	 * Retrieves all metadata required by the context

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

    47 	 * @param aList List for which metadata is required for

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

    49 	 *                    be false if there is another wait dialog already active

    50 	 * @return Error code

    51 	 */

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

    53 	};

    54 

    55 #endif // C_GLXATTRIBUTERETRIEVER_H

    56