Source/WebKit2/UIProcess/UserContent/WebScriptMessageHandler.cpp

/*
 * Copyright (C) 2014 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.
 */

#include "config.h"
#include "WebScriptMessageHandler.h"

#include "ArgumentCoders.h"

namespace WebKit {

void WebScriptMessageHandlerHandle::encode(IPC::ArgumentEncoder& encoder) const
{
    encoder << identifier;
    encoder << name;
}

bool WebScriptMessageHandlerHandle::decode(IPC::ArgumentDecoder& decoder, WebScriptMessageHandlerHandle& handle)
{
    if (!decoder.decode(handle.identifier))
        return false;

    if (!decoder.decode(handle.name))
        return false;

    return true;
}

static uint64_t generateIdentifier()
{
    static uint64_t identifier;

    return ++identifier;
}

PassRefPtr<WebScriptMessageHandler> WebScriptMessageHandler::create(std::unique_ptr<Client> client, const String& name)
{
    return adoptRef(new WebScriptMessageHandler(WTF::move(client), name));
}

WebScriptMessageHandler::WebScriptMessageHandler(std::unique_ptr<Client> client, const String& name)
    : m_identifier(generateIdentifier())
    , m_client(WTF::move(client))
    , m_name(name)
{
}

WebScriptMessageHandler::~WebScriptMessageHandler()
{
}

} // namespace WebKit