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/*
* 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.
*/
#pragma once
#if ENABLE(UI_SIDE_COMPOSITING)
#include "MessageReceiver.h"
#include "VisibleContentRectUpdateInfo.h"
#include <WebCore/PageIdentifier.h>
#include <wtf/CheckedRef.h>
#include <wtf/HashMap.h>
#include <wtf/Lock.h>
#include <wtf/Ref.h>
namespace WTF {
class WorkQueue;
}
namespace WebKit {
class WebProcess;
class ViewUpdateDispatcher final: private IPC::MessageReceiver {
public:
ViewUpdateDispatcher(WebProcess&);
~ViewUpdateDispatcher();
void ref() const final;
void deref() const final;
void initializeConnection(IPC::Connection&);
private:
// IPC::MessageReceiver overrides.
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override;
void visibleContentRectUpdate(WebCore::PageIdentifier, const VisibleContentRectUpdateInfo&);
void dispatchVisibleContentRectUpdate();
struct UpdateData {
WTF_MAKE_STRUCT_FAST_ALLOCATED;
UpdateData(const VisibleContentRectUpdateInfo& info, MonotonicTime timestamp)
: visibleContentRectUpdateInfo(info)
, oldestTimestamp(timestamp) { }
VisibleContentRectUpdateInfo visibleContentRectUpdateInfo;
MonotonicTime oldestTimestamp;
};
CheckedRef<WebProcess> m_process;
Ref<WTF::WorkQueue> m_queue;
Lock m_latestUpdateLock;
HashMap<WebCore::PageIdentifier, UniqueRef<UpdateData>> m_latestUpdate WTF_GUARDED_BY_LOCK(m_latestUpdateLock);
};
} // namespace WebKit
#endif // ENABLE(UI_SIDE_COMPOSITING)
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