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/*
* Copyright (C) 2010, 2011 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 "WebBackForwardListCounts.h"
#include <WebCore/BackForwardClient.h>
#include <WebCore/BackForwardItemIdentifier.h>
#include <WebCore/FrameIdentifier.h>
#include <WebCore/PageIdentifier.h>
namespace WebKit {
class WebPage;
class WebBackForwardListProxy : public WebCore::BackForwardClient {
public:
static Ref<WebBackForwardListProxy> create(WebPage& page) { return adoptRef(*new WebBackForwardListProxy(page)); }
static void removeItem(WebCore::BackForwardItemIdentifier);
void clearCachedListCounts();
private:
WebBackForwardListProxy(WebPage&);
void addItem(Ref<WebCore::HistoryItem>&&) override;
void setChildItem(WebCore::BackForwardFrameItemIdentifier, Ref<WebCore::HistoryItem>&&) final;
void goToItem(WebCore::HistoryItem&) override;
void goToProvisionalItem(const WebCore::HistoryItem&) final;
void clearProvisionalItem(const WebCore::HistoryItem&) final;
RefPtr<WebCore::HistoryItem> itemAtIndex(int, WebCore::FrameIdentifier) override;
unsigned backListCount() const override;
unsigned forwardListCount() const override;
bool containsItem(const WebCore::HistoryItem&) const final;
const WebBackForwardListCounts& cacheListCountsIfNecessary() const;
void close() override;
WeakPtr<WebPage> m_page;
mutable std::optional<WebBackForwardListCounts> m_cachedBackForwardListCounts;
};
} // namespace WebKit
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