/****************************************************************************

**

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the QtScript module of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL-ONLY$

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

** $QT_END_LICENSE$

**

****************************************************************************/

#ifndef QSCRIPTOBJECT_P_H

#define QSCRIPTOBJECT_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 <QtCore/qobjectdefs.h>

#include "JSObject.h"

QT_BEGIN_NAMESPACE

class QScriptObjectDelegate;

class QScriptObject : public JSC::JSObject

{

public:

     // work around CELL_SIZE limitation

    struct Data

    {

        JSC::JSValue data; // QScriptValue::data

        QScriptObjectDelegate *delegate;

        bool isMarking; // recursion guard

        Data() : delegate(0), isMarking(false) {}

        ~Data();

    };

    explicit QScriptObject(WTF::PassRefPtr<JSC::Structure> sid);

    virtual ~QScriptObject();

    virtual bool getOwnPropertySlot(JSC::ExecState*,

                                    const JSC::Identifier& propertyName,

                                    JSC::PropertySlot&);

    virtual void put(JSC::ExecState* exec, const JSC::Identifier& propertyName,

                     JSC::JSValue, JSC::PutPropertySlot&);

    virtual bool deleteProperty(JSC::ExecState*,

                                const JSC::Identifier& propertyName,

                                bool checkDontDelete = true);

    virtual bool getPropertyAttributes(JSC::ExecState*, const JSC::Identifier&,

                                       unsigned&) const;

    virtual void getOwnPropertyNames(JSC::ExecState*, JSC::PropertyNameArray&,

                                     bool includeNonEnumerable = false);

    virtual void markChildren(JSC::MarkStack& markStack);

    virtual JSC::CallType getCallData(JSC::CallData&);

    virtual JSC::ConstructType getConstructData(JSC::ConstructData&);

    virtual bool hasInstance(JSC::ExecState*, JSC::JSValue value, JSC::JSValue proto);

    virtual bool compareToObject(JSC::ExecState*, JSC::JSObject*);

    virtual const JSC::ClassInfo* classInfo() const { return &info; }

    static const JSC::ClassInfo info;

    static WTF::PassRefPtr<JSC::Structure> createStructure(JSC::JSValue prototype)

    {

        return JSC::Structure::create(prototype, JSC::TypeInfo(JSC::ObjectType, JSC::ImplementsHasInstance | JSC::OverridesHasInstance));

    }

    inline JSC::JSValue data() const;

    inline void setData(JSC::JSValue data);

    inline QScriptObjectDelegate *delegate() const;

    inline void setDelegate(QScriptObjectDelegate *delegate);

protected:

    Data *d;

};

class QScriptObjectPrototype : public QScriptObject

{

public:

    QScriptObjectPrototype(JSC::ExecState*, WTF::PassRefPtr<JSC::Structure>,

                           JSC::Structure* prototypeFunctionStructure);

};

class QScriptObjectDelegate

{

public:

    enum Type {

        QtObject,

        Variant,

        ClassObject,

        DeclarativeClassObject

    };

    QScriptObjectDelegate();

    virtual ~QScriptObjectDelegate();

    virtual Type type() const = 0;

    virtual bool getOwnPropertySlot(QScriptObject*, JSC::ExecState*,

                                    const JSC::Identifier& propertyName,

                                    JSC::PropertySlot&);

    virtual void put(QScriptObject*, JSC::ExecState* exec, const JSC::Identifier& propertyName,

                     JSC::JSValue, JSC::PutPropertySlot&);

    virtual bool deleteProperty(QScriptObject*, JSC::ExecState*,

                                const JSC::Identifier& propertyName,

                                bool checkDontDelete = true);

    virtual bool getPropertyAttributes(const QScriptObject*, JSC::ExecState*,

                                       const JSC::Identifier&, unsigned&) const;

    virtual void getOwnPropertyNames(QScriptObject*, JSC::ExecState*, JSC::PropertyNameArray&,

                                     bool includeNonEnumerable = false);

    virtual void markChildren(QScriptObject*, JSC::MarkStack& markStack);

    virtual JSC::CallType getCallData(QScriptObject*, JSC::CallData&);

    virtual JSC::ConstructType getConstructData(QScriptObject*, JSC::ConstructData&);

    virtual bool hasInstance(QScriptObject*, JSC::ExecState*,

                             JSC::JSValue value, JSC::JSValue proto);

    virtual bool compareToObject(QScriptObject*, JSC::ExecState*, JSC::JSObject*);

private:

    Q_DISABLE_COPY(QScriptObjectDelegate)

};

inline JSC::JSValue QScriptObject::data() const

{

    if (!d)

        return JSC::JSValue();

    return d->data;

}

inline void QScriptObject::setData(JSC::JSValue data)

{

    if (!d)

        d = new Data();

    d->data = data;

}

inline QScriptObjectDelegate *QScriptObject::delegate() const

{

    if (!d)

        return 0;

    return d->delegate;

}

inline void QScriptObject::setDelegate(QScriptObjectDelegate *delegate)

{

    if (!d)

        d = new Data();

    else

        delete d->delegate;

    d->delegate = delegate;

}

QT_END_NAMESPACE

#endif