qerrorinfo_p.h

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// Copyright (C) 2023 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 QERRORINFO_P_H
#define QERRORINFO_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 <QtMultimedia/qtmultimediaglobal.h>
#include <QString>
 
QT_BEGIN_NAMESPACE
 
template <typename ErrorCode, ErrorCode NoError = ErrorCode::NoError>
class QErrorInfo
{
public:
    QErrorInfo(ErrorCode error = NoError, QString description = {})
        : m_code(error), m_description(std::move(description))
    {
    }
 
    template <typename Notifier>
    void setAndNotify(ErrorCode code, QString description, Notifier &notifier)
    {
        const bool changed = code != m_code || description != m_description;
 
        m_code = code;
        m_description = std::move(description);
 
        if (code != NoError)
            Q_EMIT notifier.errorOccurred(m_code, m_description);
 
        if (changed)
            Q_EMIT notifier.errorChanged();
    }
 
    ErrorCode code() const { return m_code; }
    QString description() const { return m_description; }
 
private:
    ErrorCode m_code;
    QString m_description;
};
 
QT_END_NAMESPACE
 
#endif // QERRORINFO_P_H