/*

* 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.

*

*/

#ifndef MPNOWPLAYINGBACKEND_H

#define MPNOWPLAYINGBACKEND_H

//includes

#include <QObject>

#include <QMetaType>

//forward declartions

class MpNowPlayingBackEndPrivate;

enum SimplifiedPlayerState {

    NotPlaying, //When there is no source

    Playing,    //When it is playing

    Paused      //When is not in Playing State

};

// Register so type can be used in signal and slot connection

Q_DECLARE_METATYPE(SimplifiedPlayerState)

//class declaration

class MpNowPlayingBackEnd : public QObject

{

    Q_OBJECT

    friend class MpNowPlayingBackEndPrivate;

public:

    explicit MpNowPlayingBackEnd( long int playerId = 0 );

    virtual ~MpNowPlayingBackEnd();

signals:

    void stateUpdate( SimplifiedPlayerState state );

    void titleChanged( const QString &text );

    void artistChanged( const QString &text );

public slots:

    void update();

    void playPause();

private:

    Q_DISABLE_COPY(MpNowPlayingBackEnd)

    MpNowPlayingBackEndPrivate * const d_ptr;

};

#endif  // MPNOWPLAYINGBACKEND_H