Source/WebCore/page/HandleUserInputEventResult.h

/*
 * Copyright (C) 2023 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
 */

#pragma once

#include "RemoteUserInputEventData.h"

namespace WebCore {

class HandleUserInputEventResult {
public:
    HandleUserInputEventResult(bool handled)
        : m_result(handled)
    {
    }

    HandleUserInputEventResult(RemoteUserInputEventData remoteUserInputEventData)
        : m_result(makeUnexpected(remoteUserInputEventData))
    {
    }

    bool wasHandled() { return m_result ? *m_result : false; }
    void setHandled(bool handled)
    {
        if (m_result.has_value())
            m_result = handled;
    }

    std::optional<RemoteUserInputEventData> remoteUserInputEventData()
    {
        return m_result ? std::nullopt : std::optional<RemoteUserInputEventData>(m_result.error());
    }
private:
    Expected<bool, RemoteUserInputEventData> m_result;
};

}