// Copyright (c) 2007-2009 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 "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members

 // which accompanies this distribution, and is available

 // at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

 //

 // Initial Contributors:

 // Nokia Corporation - initial contribution.

 //

 // Contributors:

 //

 // Description:

 //

 /**

  @file

  @publishedAll

  @released

 */

 #ifndef REMCONMEDIAINFORMATIONTARGETOBSERVER_H

 #define REMCONMEDIAINFORMATIONTARGETOBSERVER_H

 #include <e32base.h>

 enum TMediaAttributeId

 	{

 	ETitleOfMedia 			=0x1,

 	ENameOfArtist			=0x2,

 	ENameOfAlbum			=0x3,

 	ETrackNumber			=0x4,		/* for example the CD track number */

 	ENumberOfTracks			=0x5,		/* for example the total track number of the CD */

 	EGenre					=0x6,

 	EPlayingTime			=0x7

 	};

 /**

  * Provide an iterator wrapper class 

  */

 class TMediaAttributeIter

 	{

 public:

 	TMediaAttributeIter(RArray<TMediaAttributeId>& aMediaAttributeIDs);

 	IMPORT_C void Start();

 	IMPORT_C TBool Next(TMediaAttributeId& aId);

 private:

 	RArray<TMediaAttributeId>& iMediaAttributeIDs;

 	TInt iterator;

 	};

 /**

 Clients must implement this interface in order to instantiate objects of type 

 CRemConMediaInformationTarget. This interface passes incoming commands from RemCon to 

 the client. 

 */

 NONSHARABLE_CLASS(MRemConMediaInformationTargetObserver)

 	{

 public:

 	/**

 	For each element in aAttributeList for which the requested Metadata is available,

 	the client shall respond by calling CRemConMediaInformationTarget::AttributeValue(). 

 	After all attributes have been supplied the client shall call CRemConMediaInformationTarget::Completed().

 	@param aAttributeList A CMediaAttributeIDs containing a list of TMediaAttributeIds requested by the controller

 	@see CRemConMediaInformationTarget::AttributeValue()

 	@see CRemConMediaInformationTarget::Completed()

 	*/

 	virtual void MrcmitoGetCurrentlyPlayingMetadata( TMediaAttributeIter& aAttributeIter ) = 0;

 	};

 #endif // REMCONMEDIAINFORMATIONTARGETOBSERVER_H