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

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** 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 QSCRIPTQOBJECT_P_H

#define QSCRIPTQOBJECT_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 "qscriptobject_p.h"

#include "qscriptengine.h"

#include <QtCore/qpointer.h>

#include "InternalFunction.h"

QT_BEGIN_NAMESPACE

namespace QScript

{

enum AttributeExtension {

    // ### Make sure there's no conflict with JSC::Attribute

    QObjectMemberAttribute = 1 << 12

};

class QObjectDelegate : public QScriptObjectDelegate

{

public:

    struct Data

    {

        QPointer<QObject> value;

        QScriptEngine::ValueOwnership ownership;

        QScriptEngine::QObjectWrapOptions options;

        QHash<QByteArray, JSC::JSValue> cachedMembers;

        Data(QObject *o, QScriptEngine::ValueOwnership own,

             QScriptEngine::QObjectWrapOptions opt)

            : value(o), ownership(own), options(opt) {}

    };

    QObjectDelegate(

        QObject *object, QScriptEngine::ValueOwnership ownership,

        const QScriptEngine::QObjectWrapOptions &options);

    ~QObjectDelegate();

    virtual Type type() const;

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

                                    const JSC::Identifier& propertyName,

                                    JSC::PropertySlot&);

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

                                    const JSC::Identifier& propertyName,

                                    JSC::PropertyDescriptor&);

    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);

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

                                     JSC::PropertyNameArray&,

                                     JSC::EnumerationMode mode = JSC::ExcludeDontEnumProperties);

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

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

    inline QObject *value() const { return data->value; }

    inline void setValue(QObject* value) { data->value = value; }

    inline QScriptEngine::ValueOwnership ownership() const

        { return data->ownership; }

    inline void setOwnership(QScriptEngine::ValueOwnership ownership)

        { data->ownership = ownership; }

    inline QScriptEngine::QObjectWrapOptions options() const

        { return data->options; }

    inline void setOptions(QScriptEngine::QObjectWrapOptions options)

        { data->options = options; }

protected:

    Data *data;

};

class QObjectPrototypeObject : public QObject

{

    Q_OBJECT

public:

    QObjectPrototypeObject(QObject *parent = 0)

        : QObject(parent) { }

    ~QObjectPrototypeObject() { }

};

class QObjectPrototype : public QScriptObject

{

public:

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

                     JSC::Structure* prototypeFunctionStructure);

};

class QObjectConnectionManager;

struct QObjectWrapperInfo

{

    QObjectWrapperInfo(QScriptObject *obj,

                       QScriptEngine::ValueOwnership own,

                       const QScriptEngine::QObjectWrapOptions &opt)

        : object(obj), ownership(own), options(opt) {}

    QScriptObject *object;

    QScriptEngine::ValueOwnership ownership;

    QScriptEngine::QObjectWrapOptions options;

};

class QObjectData // : public QObjectUserData

{

public:

    QObjectData(QScriptEnginePrivate *engine);

    ~QObjectData();

    bool addSignalHandler(QObject *sender,

                          int signalIndex,

                          JSC::JSValue receiver,

                          JSC::JSValue slot,

                          JSC::JSValue senderWrapper,

                          Qt::ConnectionType type);

    bool removeSignalHandler(QObject *sender,

                             int signalIndex,

                             JSC::JSValue receiver,

                             JSC::JSValue slot);

    QScriptObject *findWrapper(QScriptEngine::ValueOwnership ownership,

                               const QScriptEngine::QObjectWrapOptions &options) const;

    void registerWrapper(QScriptObject *wrapper,

                         QScriptEngine::ValueOwnership ownership,

                         const QScriptEngine::QObjectWrapOptions &options);

    void mark(JSC::MarkStack&);

private:

    QScriptEnginePrivate *engine;

    QScript::QObjectConnectionManager *connectionManager;

    QList<QScript::QObjectWrapperInfo> wrappers;

};

class QtFunction: public JSC::InternalFunction

{

public:

    // work around CELL_SIZE limitation

    struct Data

    {

        JSC::JSValue object;

        int initialIndex;

        bool maybeOverloaded;

        Data(JSC::JSValue o, int ii, bool mo)

            : object(o), initialIndex(ii), maybeOverloaded(mo) {}

    };

    QtFunction(JSC::JSValue object, int initialIndex, bool maybeOverloaded,

               JSC::JSGlobalData*, WTF::PassRefPtr<JSC::Structure>, const JSC::Identifier&);

    virtual ~QtFunction();

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

    virtual void markChildren(JSC::MarkStack&);

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

    static const JSC::ClassInfo info;

    static JSC::JSValue JSC_HOST_CALL call(JSC::ExecState*, JSC::JSObject*,

                                           JSC::JSValue, const JSC::ArgList&);

    JSC::JSValue execute(JSC::ExecState *exec, JSC::JSValue thisValue,

                         const JSC::ArgList &args);

    QScriptObject *wrapperObject() const;

    QObject *qobject() const;

    const QMetaObject *metaObject() const;

    int initialIndex() const;

    bool maybeOverloaded() const;

    int mostGeneralMethod(QMetaMethod *out = 0) const;

    QList<int> overloadedIndexes() const;

private:

    Data *data;

};

class QtPropertyFunction: public JSC::InternalFunction

{

public:

    // work around CELL_SIZE limitation

    struct Data

    {

        const QMetaObject *meta;

        int index;

        Data(const QMetaObject *m, int i)

            : meta(m), index(i) {}

    };

    QtPropertyFunction(const QMetaObject *meta, int index,

                       JSC::JSGlobalData*, WTF::PassRefPtr<JSC::Structure>,

                       const JSC::Identifier&);

    virtual ~QtPropertyFunction();

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

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

    static const JSC::ClassInfo info;

    static JSC::JSValue JSC_HOST_CALL call(JSC::ExecState*, JSC::JSObject*,

                                           JSC::JSValue, const JSC::ArgList&);

    JSC::JSValue execute(JSC::ExecState *exec, JSC::JSValue thisValue,

                         const JSC::ArgList &args);

    const QMetaObject *metaObject() const;

    int propertyIndex() const;

private:

    Data *data;

};

class QMetaObjectWrapperObject : public JSC::JSObject

{

public:

    // work around CELL_SIZE limitation

    struct Data

    {

        const QMetaObject *value;

        JSC::JSValue ctor;

        JSC::JSValue prototype;

        Data(const QMetaObject *mo, JSC::JSValue c)

            : value(mo), ctor(c) {}

    };

    explicit QMetaObjectWrapperObject(

        JSC::ExecState *, const QMetaObject *metaobject, JSC::JSValue ctor,

        WTF::PassRefPtr<JSC::Structure> sid);

    ~QMetaObjectWrapperObject();

    virtual bool getOwnPropertySlot(JSC::ExecState*,

                                    const JSC::Identifier& propertyName,

                                    JSC::PropertySlot&);

    virtual bool getOwnPropertyDescriptor(JSC::ExecState*,

                                          const JSC::Identifier& propertyName,

                                          JSC::PropertyDescriptor&);

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

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

    virtual bool deleteProperty(JSC::ExecState*,

                                const JSC::Identifier& propertyName);

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

                                     JSC::EnumerationMode mode = JSC::ExcludeDontEnumProperties);

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

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

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

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

    static const JSC::ClassInfo info;

    static JSC::JSValue JSC_HOST_CALL call(JSC::ExecState*, JSC::JSObject*,

                                           JSC::JSValue, const JSC::ArgList&);

    static JSC::JSObject* construct(JSC::ExecState *, JSC::JSObject *, const JSC::ArgList &);

    JSC::JSValue execute(JSC::ExecState *exec, const JSC::ArgList &args);

    inline const QMetaObject *value() const { return data->value; }

    inline void setValue(const QMetaObject* value) { data->value = value; }

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

    {

        return JSC::Structure::create(prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags));

    }

protected:

    static const unsigned StructureFlags = JSC::OverridesGetOwnPropertySlot | JSC::OverridesMarkChildren | JSC::OverridesGetPropertyNames | JSC::ImplementsHasInstance | JSObject::StructureFlags;

    Data *data;

};

class QMetaObjectPrototype : public QMetaObjectWrapperObject

{

public:

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

                         JSC::Structure* prototypeFunctionStructure);

};

} // namespace QScript

QT_END_NAMESPACE

#endif