/*

* 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.

*

*/

#include "mpnowplayingbackend.h"

#include "mpnowplayingbackend_p.h"

#include "mptrace.h"

/*!

    \internal

    \class MpNowPlayingBackEnd

    \brief Wraps the playback utility and provides separation for QT and Symbian code.

    This class wraps the playback utility on the MPX Framework to provide a simple 

    interface and separation of QT and Symbian code.

*/

/*!

    \internal

    \fn MpNowPlayingBackEnd::stateUpdate( SimplifiedPlayerState state )

    MpNowPlayingBackEndPrivate emits this signal when the simplified playback 

    state changes.

*/

/*!

    \internal

    \fn MpNowPlayingBackEnd::titleChanged( const QString &text )

    MpNowPlayingBackEndPrivate emits this signal when there is a new song

    playing and the title becomes available.

*/

/*!

    \internal

    \fn MpNowPlayingBackEnd::artistChanged( const QString &text )

    MpNowPlayingBackEndPrivate emits this signal when there is a new song

    playing and the artist name becomes available.

*/

/*!

    \internal

    \enum SimplifiedPlayerState

    This enum defines a set of simplified playback states.

 */

/*!

 \internal

 Constructs the now playing back end.

 */

MpNowPlayingBackEnd::MpNowPlayingBackEnd( long int playerId )

    :d_ptr( new MpNowPlayingBackEndPrivate( playerId, this ) )

{

    TX_ENTRY_ARGS( "Player ID =" << playerId )

    TX_EXIT

}

/*!

 \internal

 Destructs the now playing back end.

 */

MpNowPlayingBackEnd::~MpNowPlayingBackEnd()

{

    TX_ENTRY

    delete d_ptr;

    TX_EXIT

}

/*!

 \internal

 Updates the widget with the latest playback information.

 */

void MpNowPlayingBackEnd::update()

{

    TX_ENTRY

    d_ptr->update();

    TX_EXIT

}

/*!

 \internal

 Sends a play/pause command.

 */

void MpNowPlayingBackEnd::playPause()

{

    TX_ENTRY

     d_ptr->playPause();

    TX_EXIT

}