/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.nokia.com)
**
**
** 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.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
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**************************************************************************/

#ifndef QMLPROPERTYCHANGESNODEINSTANCE_H
#define QMLPROPERTYCHANGESNODEINSTANCE_H

#include "objectnodeinstance.h"
#include <private/qdeclarativestateoperations_p.h>
#include <private/qdeclarativepropertychanges_p.h>

#include <QPair>
#include <QWeakPointer>

QT_BEGIN_NAMESPACE
class QDeclarativeProperty;
QT_END_NAMESPACE

namespace QmlDesigner {

namespace Internal {

class QmlPropertyChangesNodeInstance;

// Original QmlPropertyChanges class requires a custom parser
// work around this by writing a replacement class
//class QmlPropertyChangesObject : public QDeclarativeStateOperation
//{
//    Q_OBJECT
//    Q_PROPERTY(QObject *target READ targetObject WRITE setTargetObject)
//    Q_PROPERTY(bool restoreEntryValues READ restoreEntryValues WRITE setRestoreEntryValues)
//    Q_PROPERTY(bool explicit READ isExplicit WRITE setIsExplicit)

//    typedef QPair<QString, QWeakPointer<QDeclarativeBinding> >  ExpressionPair;
//public:
//    ~QmlPropertyChangesObject();
//    QObject *targetObject() const;
//    void setTargetObject(QObject *object);

//    bool restoreEntryValues() const;
//    void setRestoreEntryValues(bool restore);

//    bool isExplicit() const;
//    void setIsExplicit(bool isExplicit);

//    virtual ActionList actions();

//    void setVariantValue(const QString &name, const QVariant & value);
//    void setExpression(const QString &name, const QString &expression);
//    void removeVariantValue(const QString &name);
//    void removeExpression(const QString &name);

//    void resetProperty(const QString &name);

//    QVariant variantValue(const QString &name) const;
//    QString expression(const QString &name) const;

//    bool hasVariantValue(const QString &name) const;
//    bool hasExpression(const QString &name) const;

//    QmlPropertyChangesObject();

//    bool updateStateVariant(const QString &propertyName, const QVariant &value);
//    bool updateStateBinding(const QString &propertyName, const QString &expression);
//    bool resetStateProperty(const QString &propertyName, const QVariant &resetValue);

//    QDeclarativeState *state() const;
//    void updateRevertValueAndBinding(const QString &name);

//    void removeFromStateRevertList();
//    void addToStateRevertList();

//private: // functions
//    bool isActive() const;

//    QDeclarativeStatePrivate *statePrivate() const;

//    QDeclarativeStateGroup *stateGroup() const;
//    QDeclarativeProperty createMetaProperty(const QString &property);

//    QDeclarativeAction &qmlActionForProperty(const QString &propertyName) const;
//    bool hasActionForProperty(const QString &propertyName) const;
//    void removeActionForProperty(const QString &propertyName);

//    QDeclarativeAction createQDeclarativeAction(const QString &propertyName);

//private: // variables
//    QWeakPointer<QObject> m_targetObject;
//    bool m_restoreEntryValues;
//    bool m_isExplicit;

//    mutable ActionList m_qmlActionList;
//    QHash<QString, ExpressionPair> m_expressionHash;
//};

class QmlPropertyChangesNodeInstance : public ObjectNodeInstance
{
public:
    typedef QSharedPointer<QmlPropertyChangesNodeInstance> Pointer;
    typedef QWeakPointer<QmlPropertyChangesNodeInstance> WeakPointer;

    static Pointer create(QObject *objectToBeWrapped);

    virtual void setPropertyVariant(const QString &name, const QVariant &value);
    virtual void setPropertyBinding(const QString &name, const QString &expression);
    virtual QVariant property(const QString &name) const;
    virtual void resetProperty(const QString &name);

    using ObjectNodeInstance::reparent; // keep the virtual reparent(...) method around
    void reparent(const ServerNodeInstance &oldParentInstance, const QString &oldParentProperty, const ServerNodeInstance &newParentInstance, const QString &newParentProperty);

protected:
    QmlPropertyChangesNodeInstance(QDeclarativePropertyChanges *object);
    QDeclarativePropertyChanges *changesObject() const;
};

} // namespace Internal
} // namespace QmlDesigner

//QML_DECLARE_TYPE(QmlDesigner::Internal::QmlPropertyChangesObject)

#endif // QMLPROPERTYCHANGESNODEINSTANCE_H