1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // 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

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 

    17 

    18 /**

    19  @file

    20  @publishedAll

    21  @released

    22 */

    23 

    24 #ifndef REMCONMEDIAINFORMATIONTARGETOBSERVER_H

    25 #define REMCONMEDIAINFORMATIONTARGETOBSERVER_H

    26 

    27 #include <e32base.h>

    28 

    29 enum TMediaAttributeId

    30 	{

    31 	ETitleOfMedia 			=0x1,

    32 	ENameOfArtist			=0x2,

    33 	ENameOfAlbum			=0x3,

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

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

    36 	EGenre					=0x6,

    37 	EPlayingTime			=0x7

    38 	};

    39 

    40 /**

    41  * Provide an iterator wrapper class 

    42  */

    43 class TMediaAttributeIter

    44 	{

    45 public:

    46 	TMediaAttributeIter(RArray<TMediaAttributeId>& aMediaAttributeIDs);

    47 	IMPORT_C void Start();

    48 	IMPORT_C TBool Next(TMediaAttributeId& aId);

    49 	

    50 private:

    51 	RArray<TMediaAttributeId>& iMediaAttributeIDs;

    52 	TInt iterator;

    53 	};

    54 

    55 

    56 /**

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

    58 CRemConMediaInformationTarget. This interface passes incoming commands from RemCon to 

    59 the client. 

    60 */

    61 NONSHARABLE_CLASS(MRemConMediaInformationTargetObserver)

    62 	{

    63 public:

    64 

    65 	/**

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

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

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

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

    70 	@see CRemConMediaInformationTarget::AttributeValue()

    71 	@see CRemConMediaInformationTarget::Completed()

    72 	*/

    73 	virtual void MrcmitoGetCurrentlyPlayingMetadata( TMediaAttributeIter& aAttributeIter ) = 0;

    74 

    75 	};

    76 

    77 #endif // REMCONMEDIAINFORMATIONTARGETOBSERVER_H