/*

* 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 NMOPERATION_H_

#define NMOPERATION_H_

#include <QObject>

#include "nmuienginedef.h"

class NMUIENGINE_EXPORT NmOperation: public QObject

{

    Q_OBJECT

public:

    NmOperation();  

    bool isRunning() const;

    void addPreliminaryOperation(NmOperation *operation);

signals:

    void operationProgressChanged(int progress);

    void operationCompleted(int result = 0);

    void operationCancelled();

public slots:

    void completeOperation(int result);

    void cancelOperation();

    void updateOperationProgress(int progress);

protected slots:

    virtual void runAsyncOperation();

    virtual void handlePreliminaryOperationFinished();

private slots:

    void deleteOperation();

protected:

    virtual ~NmOperation();  

    virtual void doCompleteOperation();

    virtual void doCancelOperation();

    virtual void doUpdateOperationProgress();

    virtual void doRunAsyncOperation() = 0;

private:

    int mProgress;

    bool mIsRunning;

    QList<NmOperation *> mPreliminaryOperations;

};

#endif /* NMOPERATION_H_ */