/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
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** Alternatively, this file may be used under the terms of the GNU
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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#ifndef EXTENSIONLOADER_H
#define EXTENSIONLOADER_H

#include <QMutex>
#include <QtVirtualKeyboard/QVirtualKeyboardExtensionPlugin>

QT_BEGIN_NAMESPACE
namespace QtVirtualKeyboard {

class ExtensionLoader
{
    Q_DISABLE_COPY(ExtensionLoader)
public:
    static QHash<QString, QJsonObject> plugins(bool reload = false);
    static QJsonObject loadMeta(const QString &extensionName);
    static QVirtualKeyboardExtensionPlugin *loadPlugin(QJsonObject metaData);

private:
    static void loadPluginMetadata();

private:
    static QMutex m_mutex;
    static QHash<QString, QJsonObject> m_plugins;
    static bool m_alreadyDiscovered;
};

} // namespace QtVirtualKeyboard
QT_END_NAMESPACE

#endif // EXTENSIONLOADER_H