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/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** 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
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKLOADER_P_P_H
#define QQUICKLOADER_P_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 "qquickloader_p.h"
#include "qquickimplicitsizeitem_p_p.h"
#include "qquickitemchangelistener_p.h"
#include <qqmlincubator.h>
#include <private/qv4value_p.h>
QT_BEGIN_NAMESPACE
class QQuickLoaderPrivate;
class QQuickLoaderIncubator : public QQmlIncubator
{
public:
QQuickLoaderIncubator(QQuickLoaderPrivate *l, IncubationMode mode) : QQmlIncubator(mode), loader(l) {}
protected:
void statusChanged(Status) override;
void setInitialState(QObject *) override;
private:
QQuickLoaderPrivate *loader;
};
class QQmlContext;
class QQuickLoaderPrivate : public QQuickImplicitSizeItemPrivate, public QQuickItemChangeListener
{
Q_DECLARE_PUBLIC(QQuickLoader)
public:
QQuickLoaderPrivate();
~QQuickLoaderPrivate();
void itemGeometryChanged(QQuickItem *item, QQuickGeometryChange change, const QRectF &oldGeometry) override;
void itemImplicitWidthChanged(QQuickItem *) override;
void itemImplicitHeightChanged(QQuickItem *) override;
void clear();
void initResize();
void load();
void incubatorStateChanged(QQmlIncubator::Status status);
void setInitialState(QObject *o);
void disposeInitialPropertyValues();
static QUrl resolveSourceUrl(QQmlV4Function *args);
QV4::ReturnedValue extractInitialPropertyValues(QQmlV4Function *args, QObject *loader, bool *error);
QQuickLoader::Status computeStatus() const;
void updateStatus();
void createComponent();
qreal getImplicitWidth() const override;
qreal getImplicitHeight() const override;
QUrl source;
QQuickItem *item;
QObject *object;
QQmlStrongJSQObjectReference<QQmlComponent> component;
QQmlContext *itemContext;
QQuickLoaderIncubator *incubator;
QV4::PersistentValue initialPropertyValues;
QV4::PersistentValue qmlCallingContext;
bool updatingSize: 1;
bool active : 1;
bool loadingFromSource : 1;
bool asynchronous : 1;
// We need to use char instead of QQuickLoader::Status
// as otherwise the size of the class would increase
// on 32-bit systems, as sizeof(Status) == sizeof(int)
// and sizeof(int) > remaining padding on 32 bit
char status;
void _q_sourceLoaded();
void _q_updateSize(bool loaderGeometryChanged = true);
};
QT_END_NAMESPACE
#endif // QQUICKLOADER_P_P_H
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