marshalutils.h 2.66 KB
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/*
 * Copyright (c) 2016 - 2019 Jolla Ltd.
 * Copyright (c) 2019 Open Mobile Platform LLC.
 *
 * You may use this file under the terms of the BSD license as follows:
 *
 * "Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *   * Neither the name of Nemo Mobile nor the names of its contributors
 *     may be used to endorse or promote products derived from this
 *     software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 */

#ifndef MARSHALUTILS_H
#define MARSHALUTILS_H

#include <QVariant>
#include <QDBusArgument>

namespace MarshalUtils
{
    template <typename Argument>
    inline Argument demarshallArgument(const QVariant &argument)
    {
        if (argument.userType() == qMetaTypeId<QDBusArgument>()) {
            Argument demarshalled;
            argument.value<QDBusArgument>() >> demarshalled;
            return demarshalled;
        } else {
            return argument.value<Argument>();
        }

    }

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    typedef QVariant (*conversionFunction)(const QString &key, const QVariant &value, bool toDBus);

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    QVariantMap propertiesToQml(const QVariantMap &fromDBus);
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    QHash<QString, conversionFunction> propertyConversions();
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    QVariant convertValue(const QString &key, const QVariant &value, bool toDBus);
    QVariant convertToQml(const QString &key, const QVariant &value);
    QVariant convertToDBus(const QString &key, const QVariant &value);
    QVariantMap propertiesToDBus(const QVariantMap &fromQml);
}

#endif // MARSHALUTILS_H