Source/WebKit/UIProcess/LegacySessionStateCodingNone.cpp

/*
 * Copyright (C) 2014 Apple Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *
 * 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
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#include "config.h"
#include "LegacySessionStateCoding.h"

#include "APIData.h"
#include "DataReference.h"
#include "Decoder.h"
#include "Encoder.h"
#include "SessionState.h"
#include "WebCoreArgumentCoders.h"

namespace WebKit {

RefPtr<API::Data> encodeLegacySessionState(const SessionState& sessionState)
{
    // FIXME: I'm not sure whether these are the proper arguments for the encoder.
    IPC::Encoder encoder("IPC", "LegacySessionState", 0);
    encoder << sessionState.backForwardListState;
    encoder << sessionState.renderTreeSize;
    encoder << sessionState.provisionalURL;
    return API::Data::create(encoder.buffer(), encoder.bufferSize());
}

bool decodeLegacySessionState(const uint8_t* data, size_t dataSize, SessionState& sessionState)
{
    IPC::Decoder decoder(data, dataSize, nullptr, Vector<IPC::Attachment>());
    Optional<BackForwardListState> backForwardListState;
    decoder >> backForwardListState;
    if (!backForwardListState)
        return false;
    sessionState.backForwardListState = WTFMove(*backForwardListState);
    if (!decoder.decode(sessionState.renderTreeSize))
        return false;
    if (!decoder.decode(sessionState.provisionalURL))
        return false;
    return true;
}

} // namespace WebKit