/****************************************************************************
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** This file is part of the QtDeclarative module of the Qt Toolkit.
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** accordance with the commercial license agreement provided with the
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
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****************************************************************************/

#ifndef QDECLARATIVEPROPERTYCHANGES_H
#define QDECLARATIVEPROPERTYCHANGES_H

#include "private/qdeclarativestateoperations_p.h"
#include <private/qdeclarativecustomparser_p.h>

QT_BEGIN_NAMESPACE

QT_MODULE(Declarative)
    
class QDeclarativePropertyChangesPrivate;
class Q_DECLARATIVE_PRIVATE_EXPORT QDeclarativePropertyChanges : public QDeclarativeStateOperation
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QDeclarativePropertyChanges)

    Q_PROPERTY(QObject *target READ object WRITE setObject)
    Q_PROPERTY(bool restoreEntryValues READ restoreEntryValues WRITE setRestoreEntryValues)
    Q_PROPERTY(bool explicit READ isExplicit WRITE setIsExplicit)
public:
    QDeclarativePropertyChanges();
    ~QDeclarativePropertyChanges();

    QObject *object() const;
    void setObject(QObject *);

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

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

    virtual ActionList actions();

    bool containsProperty(const QString &name) const;
    bool containsValue(const QString &name) const;
    bool containsExpression(const QString &name) const;
    void changeValue(const QString &name, const QVariant &value);
    void changeExpression(const QString &name, const QString &expression);
    void removeProperty(const QString &name);
    QVariant value(const QString &name) const;
    QString expression(const QString &name) const;

    void detachFromState();
    void attachToState();

    QVariant property(const QString &name) const;
};

class QDeclarativePropertyChangesParser : public QDeclarativeCustomParser
{
public:
    QDeclarativePropertyChangesParser()
    : QDeclarativeCustomParser(AcceptsAttachedProperties) {}

    void compileList(QList<QPair<QByteArray, QVariant> > &list, const QByteArray &pre, const QDeclarativeCustomParserProperty &prop);

    virtual QByteArray compile(const QList<QDeclarativeCustomParserProperty> &);
    virtual void setCustomData(QObject *, const QByteArray &);
};


QT_END_NAMESPACE

QML_DECLARE_TYPE(QDeclarativePropertyChanges)

#endif // QDECLARATIVEPROPERTYCHANGES_H