/*

* 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:

*

*/

#ifndef NMDATAPLUGINFACTORY_H_

#define NMDATAPLUGINFACTORY_H_

#include "nmuienginedef.h"

class NmDataPluginInterface;

class NmApplicationStateInterface;

class QDir;

class QPluginLoader;

/*!

    \class NmDataPluginFactory

    \brief The class NmDataPluginFactory provides interface to create NmDataPluginInterface

    instance.

 */

class NMUIENGINE_EXPORT NmDataPluginFactory

{

public:

    static NmDataPluginFactory *instance();

    static void releaseInstance(NmDataPluginFactory *&instance);

    NmDataPluginInterface *interfaceInstance(QObject *plugin);

    NmDataPluginInterface *interfaceInstance(NmId mailboxId);

    NmApplicationStateInterface *applicationStateInterfaceInstance(NmId mailboxId);

    QObject *pluginInstance(NmId mailboxId);

    QList<QObject*> *pluginInstances();

    QObject *loadPlugin(

        const QDir &pluginDir,

        const QString& pluginName);

private:

    NmApplicationStateInterface *applicationStateInterfaceInstance(QObject *plugin);

    NmDataPluginFactory();

    virtual ~NmDataPluginFactory();

    static NmDataPluginFactory   *mInstance;         // owned

    static int                   mReferenceCount;

    static QList<QObject*>       *mPluginArray;      // owned

    static QList<QPluginLoader*> mPluginLoaderArray; // owned

};

#endif /* NMDATAPLUGINFACTORY_H_ */