text: /****************************************************************************
  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the QtQuick module of the Qt Toolkit.
  **
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  ** accordance with the commercial license agreement provided with the
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  ** GNU Lesser General Public License Usage
  ** Alternatively, this file may be used under the terms of the GNU Lesser
  ** General Public License version 3 as published by the Free Software
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  ** packaging of this file. Please review the following information to
  ** ensure the GNU Lesser General Public License version 3 requirements
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  ** Alternatively, this file may be used under the terms of the GNU
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  ****************************************************************************/
  
  #ifndef QQUICKPROPERTYCHANGES_H
  #define QQUICKPROPERTYCHANGES_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 "qquickstatechangescript_p.h"
  #include <private/qqmlcustomparser_p.h>
  
  QT_BEGIN_NAMESPACE
  
  class QQuickPropertyChangesPrivate;
  class Q_QUICK_PRIVATE_EXPORT QQuickPropertyChanges : public QQuickStateOperation
  {
      Q_OBJECT
      Q_DECLARE_PRIVATE(QQuickPropertyChanges)
  
      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:
      QQuickPropertyChanges();
      ~QQuickPropertyChanges();
  
      QObject *object() const;
      void setObject(QObject *);
  
      bool restoreEntryValues() const;
      void setRestoreEntryValues(bool);
  
      bool isExplicit() const;
      void setIsExplicit(bool);
  
      ActionList actions() override;
  
      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 QQuickPropertyChangesParser : public QQmlCustomParser
  {
  public:
      QQuickPropertyChangesParser()
      : QQmlCustomParser(AcceptsAttachedProperties) {}
  
      void verifyList(const QV4::CompiledData::Unit *qmlUnit, const QV4::CompiledData::Binding *binding);
  
      void verifyBindings(const QV4::CompiledData::Unit *qmlUnit, const QList<const QV4::CompiledData::Binding *> &props) override;
      void applyBindings(QObject *obj, QV4::CompiledData::CompilationUnit *compilationUnit, const QList<const QV4::CompiledData::Binding *> &bindings) override;
  };
  
  
  QT_END_NAMESPACE
  
  QML_DECLARE_TYPE(QQuickPropertyChanges)
  
  #endif // QQUICKPROPERTYCHANGES_H
  