/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Solutions component.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
**     of its contributors may be used to endorse or promote products derived
**     from this software without specific prior written permission.
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**
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****************************************************************************/


#ifndef QSCRIPTENGINEAGENT_H
#define QSCRIPTENGINEAGENT_H

#include <qobjectdefs.h>


#include <qvariant.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Script)

class QScriptEngine;
class QScriptValue;

class QScriptEngineAgentPrivate;
class Q_SCRIPT_EXPORT QScriptEngineAgent
{
public:
    enum Extension {
        DebuggerInvocationRequest
    };

    QScriptEngineAgent(QScriptEngine *engine);
    virtual ~QScriptEngineAgent();

    virtual void scriptLoad(qint64 id, const QString &program,
                            const QString &fileName, int baseLineNumber);
    virtual void scriptUnload(qint64 id);

    virtual void contextPush();
    virtual void contextPop();

    virtual void functionEntry(qint64 scriptId);
    virtual void functionExit(qint64 scriptId,
                              const QScriptValue &returnValue);

    virtual void positionChange(qint64 scriptId,
                                int lineNumber, int columnNumber);

    virtual void exceptionThrow(qint64 scriptId,
                                const QScriptValue &exception,
                                bool hasHandler);
    virtual void exceptionCatch(qint64 scriptId,
                                const QScriptValue &exception);

    virtual bool supportsExtension(Extension extension) const;
    virtual QVariant extension(Extension extension,
                               const QVariant &argument = QVariant());

    QScriptEngine *engine() const;

protected:
    QScriptEngineAgent(QScriptEngineAgentPrivate &dd, QScriptEngine *engine);
    QScriptEngineAgentPrivate *d_ptr;

private:
    Q_DECLARE_PRIVATE(QScriptEngineAgent)
    Q_DISABLE_COPY(QScriptEngineAgent)
};

QT_END_NAMESPACE

QT_END_HEADER


#endif