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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QQMLINCUBATOR_H
#define QQMLINCUBATOR_H
#include <QtQml/qtqmlglobal.h>
#include <QtQml/qqmlerror.h>
#include <atomic>
QT_BEGIN_NAMESPACE
class QQmlEngine;
class QQmlPropertyData;
class QVariant;
class QQmlIncubatorPrivate;
class Q_QML_EXPORT QQmlIncubator
{
Q_DISABLE_COPY(QQmlIncubator)
public:
enum IncubationMode {
Asynchronous,
AsynchronousIfNested,
Synchronous
};
enum Status {
Null,
Ready,
Loading,
Error
};
QQmlIncubator(IncubationMode = Asynchronous);
virtual ~QQmlIncubator();
void clear();
void forceCompletion();
bool isNull() const;
bool isReady() const;
bool isError() const;
bool isLoading() const;
QList<QQmlError> errors() const;
IncubationMode incubationMode() const;
Status status() const;
QObject *object() const;
void setInitialProperties(const QVariantMap &initialProperties);
protected:
virtual void statusChanged(Status);
virtual void setInitialState(QObject *);
private:
friend class QQmlComponent;
friend class QQmlEnginePrivate;
friend class QQmlIncubatorPrivate;
QQmlIncubatorPrivate *d;
};
class QQmlEnginePrivate;
class Q_QML_EXPORT QQmlIncubationController
{
Q_DISABLE_COPY(QQmlIncubationController)
public:
QQmlIncubationController();
virtual ~QQmlIncubationController();
QQmlEngine *engine() const;
int incubatingObjectCount() const;
void incubateFor(int msecs);
void incubateWhile(std::atomic<bool> *flag, int msecs = 0);
protected:
virtual void incubatingObjectCountChanged(int);
private:
friend class QQmlEngine;
friend class QQmlEnginePrivate;
friend class QQmlIncubatorPrivate;
QQmlEnginePrivate *d;
};
QT_END_NAMESPACE
#endif // QQMLINCUBATOR_H
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