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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.
*/
#include "config.h"
#include "ViewUpdateDispatcher.h"
#if ENABLE(UI_SIDE_COMPOSITING)
#include "Connection.h"
#include "ViewUpdateDispatcherMessages.h"
#include "WebPage.h"
#include "WebProcess.h"
#include <WebCore/PageIdentifier.h>
#include <wtf/RunLoop.h>
#include <wtf/WorkQueue.h>
namespace WebKit {
ViewUpdateDispatcher::ViewUpdateDispatcher()
: m_queue(WorkQueue::create("com.apple.WebKit.ViewUpdateDispatcher"))
{
}
ViewUpdateDispatcher::~ViewUpdateDispatcher()
{
ASSERT_NOT_REACHED();
}
void ViewUpdateDispatcher::initializeConnection(IPC::Connection& connection)
{
connection.addMessageReceiver(m_queue.get(), *this, Messages::ViewUpdateDispatcher::messageReceiverName());
}
void ViewUpdateDispatcher::visibleContentRectUpdate(WebCore::PageIdentifier pageID, const VisibleContentRectUpdateInfo& visibleContentRectUpdateInfo)
{
bool updateListWasEmpty;
{
Locker locker { m_latestUpdateLock };
updateListWasEmpty = m_latestUpdate.isEmpty();
auto iterator = m_latestUpdate.find(pageID);
if (iterator == m_latestUpdate.end())
m_latestUpdate.set(pageID, makeUniqueRef<UpdateData>(visibleContentRectUpdateInfo, visibleContentRectUpdateInfo.timestamp()));
else
iterator->value.get().visibleContentRectUpdateInfo = visibleContentRectUpdateInfo;
}
if (updateListWasEmpty) {
RunLoop::main().dispatch([this] {
dispatchVisibleContentRectUpdate();
});
}
}
void ViewUpdateDispatcher::dispatchVisibleContentRectUpdate()
{
HashMap<WebCore::PageIdentifier, UniqueRef<UpdateData>> update;
{
Locker locker { m_latestUpdateLock };
update = std::exchange(m_latestUpdate, { });
}
for (auto& slot : update) {
if (WebPage* webPage = WebProcess::singleton().webPage(slot.key))
webPage->updateVisibleContentRects(slot.value.get().visibleContentRectUpdateInfo, slot.value.get().oldestTimestamp);
}
}
} // namespace WebKit
#endif // ENABLE(UI_SIDE_COMPOSITING)
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