/*

* Copyright (c) 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: Music Player now playing widget backend - Private.

*

*/

#ifndef MPNOWPLAYINGBACKEND_P_H

#define MPNOWPLAYINGBACKEND_P_H

#include <mpxplaybackobserver.h>

#include "mpnowplayingbackend.h"

//forward declartions

class MMPXPlaybackUtility;

//class declaration

class MpNowPlayingBackEndPrivate : public MMPXPlaybackObserver,

                                   public MMPXPlaybackCallback

{

public:

    explicit MpNowPlayingBackEndPrivate(long int playerId,

        MpNowPlayingBackEnd *qq);

    virtual ~MpNowPlayingBackEndPrivate();

    void update();

    void playPause();

public: //from MMPXPlaybackObserver

    void HandlePlaybackMessage( CMPXMessage* aMessage, TInt aError );

public: //from MMPXPlaybackCallback

    void HandlePropertyL( TMPXPlaybackProperty aProperty,

                          TInt aValue,

                          TInt aError);

    void HandleSubPlayerNamesL( TUid aPlayer,

                                const MDesCArray* aSubPlayers,

                                TBool aComplete,

                                TInt aError );

    void HandleMediaL( const CMPXMedia& aProperties, TInt aError );

private:

    void RequestMediaL();

    void UpdateStateL();

    void DoPlayPauseL();

    void DoHandlePlaybackMessageL( const CMPXMessage& message );

private:

    MpNowPlayingBackEnd     *q_ptr;             // not owned

    SimplifiedPlayerState   mPreviousState;

    MMPXPlaybackUtility     *mPlaybackUtility;  // owned

};

#endif  // MPNOWPLAYINGBACKEND_P_H