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/*
* Copyright (C) 2019 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 <WebCore/BackForwardItemIdentifier.h>
#include <WebCore/ProcessIdentifier.h>
#include <wtf/CheckedRef.h>
#include <wtf/Forward.h>
#include <wtf/RefCounted.h>
#include <wtf/RunLoop.h>
#include <wtf/TZoneMalloc.h>
namespace WebKit {
class SuspendedPageProxy;
class WebBackForwardCache;
class WebProcessProxy;
class WebBackForwardCacheEntry : public RefCounted<WebBackForwardCacheEntry> {
WTF_MAKE_TZONE_ALLOCATED(WebBackForwardCacheEntry);
public:
static Ref<WebBackForwardCacheEntry> create(WebBackForwardCache&, WebCore::BackForwardItemIdentifier, WebCore::ProcessIdentifier, RefPtr<SuspendedPageProxy>&&);
~WebBackForwardCacheEntry();
WebBackForwardCache* backForwardCache() const;
SuspendedPageProxy* suspendedPage() const { return m_suspendedPage.get(); }
Ref<SuspendedPageProxy> takeSuspendedPage();
WebCore::ProcessIdentifier processIdentifier() const { return m_processIdentifier; }
RefPtr<WebProcessProxy> process() const;
private:
WebBackForwardCacheEntry(WebBackForwardCache&, WebCore::BackForwardItemIdentifier, WebCore::ProcessIdentifier, RefPtr<SuspendedPageProxy>&&);
void expirationTimerFired();
WeakPtr<WebBackForwardCache> m_backForwardCache;
WebCore::ProcessIdentifier m_processIdentifier;
Markable<WebCore::BackForwardItemIdentifier> m_backForwardItemID;
RefPtr<SuspendedPageProxy> m_suspendedPage;
RunLoop::Timer m_expirationTimer;
};
} // namespace WebKit
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