/****************************************************************************
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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****************************************************************************/

#ifndef QQMLBOUNDSIGNAL_P_H
#define QQMLBOUNDSIGNAL_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include "qqmlexpression.h"

#include <QtCore/qmetaobject.h>

#include <private/qobject_p.h>

QT_BEGIN_NAMESPACE

class Q_QML_EXPORT QQmlAbstractBoundSignal : public QObject
{
    Q_OBJECT
public:
    QQmlAbstractBoundSignal(QObject *parent = 0);
    virtual ~QQmlAbstractBoundSignal() = 0;
};

class QQmlBoundSignalParameters;
class Q_QML_EXPORT QQmlBoundSignal : public QQmlAbstractBoundSignal
{
public:
    QQmlBoundSignal(QObject *scope, const QMetaMethod &signal, QObject *parent);
    QQmlBoundSignal(QQmlContext *ctxt, const QString &val, QObject *scope, 
                   const QMetaMethod &signal, QObject *parent);
    virtual ~QQmlBoundSignal();

    int index() const;

    QQmlExpression *expression() const;
    QQmlExpression *setExpression(QQmlExpression *);

    bool isEvaluating() const { return m_isEvaluating; }

    static QQmlBoundSignal *cast(QObject *);

protected:
    virtual int qt_metacall(QMetaObject::Call c, int id, void **a);

private:
    QQmlExpression *m_expression;
    QMetaMethod m_signal;
    bool m_paramsValid : 1;
    bool m_isEvaluating : 1;
    QQmlBoundSignalParameters *m_params;
};

QT_END_NAMESPACE

#endif // QQMLBOUNDSIGNAL_P_H