/*

* 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: mp engine factory.

*

*/

#include "mpengine.h"

#include "mpenginefactory.h"

#include "mptrace.h"

/*!

    \class MpEngineFactory

    \brief Music Player engine factory.

    MP Engine factory is responsible to create and mantain ownership of MP engines.

*/

/*!

 Constructs music player engine factory.

 */

MpEngineFactory::MpEngineFactory()

    : mSharedEngine( 0 )

{

    TX_LOG

}

/*!

 Destructs music player engine factory.

 */

MpEngineFactory::~MpEngineFactory()

{

}

/*!

 Returns the singleton instance of music player engine factory.

 */

MpEngineFactory * MpEngineFactory::instance()

{

    static MpEngineFactory instance;

    return &instance;

}

/*!

 Returns an instance to an engine with \a hostUid, and \a mode, if the shared engine is 

 already created parameters are ignored.

 */

MpEngine *MpEngineFactory::createSharedEngine( TUid hostUid , MpEngine::EngineMode mode )

{

    if ( !instance()->mSharedEngine ) {

        instance()->mSharedEngine = new MpEngine();

        instance()->mSharedEngine->initialize( hostUid, mode );

    }

    return instance()->mSharedEngine;

}

/*!

 Returns an instance to an isolated engine with \a mode.

 */

MpEngine *MpEngineFactory::createIsolatedEngine( MpEngine::EngineMode mode )

{

    instance()->mEngines.append( new MpEngine() );

    instance()->mEngines.last()->initialize( TUid::Uid( MpCommon::KMusicPlayerUid + instance()->mEngines.count() ), mode );

    return instance()->mEngines.last();

}

/*!

 Returns an instance to the current shared engine previously created with createEngine().

 */

MpEngine *MpEngineFactory::sharedEngine()

{

    return instance()->mSharedEngine;

}

/*!

 Closes all engines created on this process.

 */

void MpEngineFactory::close()

{

    if ( instance()->mSharedEngine ) {

        delete instance()->mSharedEngine;

        instance()->mSharedEngine = 0;

    }

    MpEngine *ptr;

    foreach ( ptr, instance()->mEngines ) {

        delete ptr;

        ptr = 0;

    }

}