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/*
* Copyright (C) 2014-2015 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(ASYNC_SCROLLING)
#include "MessageReceiver.h"
#include <WebCore/AsyncScrollingCoordinator.h>
#include <WebCore/ScrollTypes.h>
#include <WebCore/ScrollingConstraints.h>
#include <WebCore/Timer.h>
namespace IPC {
class Decoder;
class Encoder;
}
namespace WebKit {
class WebPage;
class RemoteScrollingCoordinatorTransaction;
class RemoteScrollingUIState;
class RemoteScrollingCoordinator : public WebCore::AsyncScrollingCoordinator, public IPC::MessageReceiver {
public:
static Ref<RemoteScrollingCoordinator> create(WebPage* page)
{
return adoptRef(*new RemoteScrollingCoordinator(page));
}
void buildTransaction(RemoteScrollingCoordinatorTransaction&);
void scrollingStateInUIProcessChanged(const RemoteScrollingUIState&);
void addNodeWithActiveRubberBanding(WebCore::ScrollingNodeID);
void removeNodeWithActiveRubberBanding(WebCore::ScrollingNodeID);
private:
RemoteScrollingCoordinator(WebPage*);
virtual ~RemoteScrollingCoordinator();
bool isRemoteScrollingCoordinator() const override { return true; }
// ScrollingCoordinator
bool coordinatesScrollingForFrameView(const WebCore::FrameView&) const override;
void scheduleTreeStateCommit() override;
bool isRubberBandInProgress(WebCore::ScrollingNodeID) const final;
bool isUserScrollInProgress(WebCore::ScrollingNodeID) const final;
bool isScrollSnapInProgress(WebCore::ScrollingNodeID) const final;
void setScrollPinningBehavior(WebCore::ScrollPinningBehavior) override;
// IPC::MessageReceiver
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override;
// Respond to UI process changes.
void scrollPositionChangedForNode(WebCore::ScrollingNodeID, const WebCore::FloatPoint& scrollPosition, bool syncLayerPosition, CompletionHandler<void()>&&);
void animatedScrollDidEndForNode(WebCore::ScrollingNodeID);
void currentSnapPointIndicesChangedForNode(WebCore::ScrollingNodeID, std::optional<unsigned> horizontal, std::optional<unsigned> vertical);
WebPage* m_webPage;
HashSet<WebCore::ScrollingNodeID> m_nodesWithActiveRubberBanding;
HashSet<WebCore::ScrollingNodeID> m_nodesWithActiveScrollSnap;
HashSet<WebCore::ScrollingNodeID> m_nodesWithActiveUserScrolls;
};
} // namespace WebKit
SPECIALIZE_TYPE_TRAITS_SCROLLING_COORDINATOR(WebKit::RemoteScrollingCoordinator, isRemoteScrollingCoordinator());
#endif // ENABLE(ASYNC_SCROLLING)
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