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/*
* Copyright (C) 2010-2018 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 "DrawingAreaProxy.h"
#include "DrawingAreaMessages.h"
#include "DrawingAreaProxyMessages.h"
#include "WebPageProxy.h"
#include "WebProcessProxy.h"
#include <WebCore/ScrollView.h>
#if PLATFORM(COCOA)
#include <wtf/MachSendRight.h>
#endif
namespace WebKit {
using namespace WebCore;
DrawingAreaProxy::DrawingAreaProxy(DrawingAreaType type, WebPageProxy& webPageProxy)
: m_type(type)
, m_identifier(DrawingAreaIdentifier::generate())
, m_webPageProxy(webPageProxy)
, m_size(webPageProxy.viewSize())
#if PLATFORM(MAC)
, m_viewExposedRectChangedTimer(RunLoop::main(), this, &DrawingAreaProxy::viewExposedRectChangedTimerFired)
#endif
{
}
DrawingAreaProxy::~DrawingAreaProxy() = default;
void DrawingAreaProxy::startReceivingMessages(WebProcessProxy& process)
{
for (auto& name : messageReceiverNames())
process.addMessageReceiver(name, m_identifier, *this);
}
void DrawingAreaProxy::stopReceivingMessages(WebProcessProxy& process)
{
for (auto& name : messageReceiverNames())
process.removeMessageReceiver(name, m_identifier);
}
std::span<IPC::ReceiverName> DrawingAreaProxy::messageReceiverNames() const
{
static std::array<IPC::ReceiverName, 1> name { Messages::DrawingAreaProxy::messageReceiverName() };
return { name };
}
DelegatedScrollingMode DrawingAreaProxy::delegatedScrollingMode() const
{
return DelegatedScrollingMode::NotDelegated;
}
bool DrawingAreaProxy::setSize(const IntSize& size, const IntSize& scrollDelta)
{
if (m_size == size && scrollDelta.isZero())
return false;
m_size = size;
m_scrollOffset += scrollDelta;
sizeDidChange();
return true;
}
#if PLATFORM(COCOA)
MachSendRight DrawingAreaProxy::createFence()
{
return MachSendRight();
}
#endif
#if PLATFORM(MAC)
void DrawingAreaProxy::didChangeViewExposedRect()
{
if (!m_webPageProxy.hasRunningProcess())
return;
if (!m_viewExposedRectChangedTimer.isActive())
m_viewExposedRectChangedTimer.startOneShot(0_s);
}
void DrawingAreaProxy::viewExposedRectChangedTimerFired()
{
if (!m_webPageProxy.hasRunningProcess())
return;
auto viewExposedRect = m_webPageProxy.viewExposedRect();
if (viewExposedRect == m_lastSentViewExposedRect)
return;
m_webPageProxy.send(Messages::DrawingArea::SetViewExposedRect(viewExposedRect), m_identifier);
m_lastSentViewExposedRect = viewExposedRect;
}
#endif // PLATFORM(MAC)
} // namespace WebKit
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