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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.
*/
#ifndef RemoteScrollingTree_h
#define RemoteScrollingTree_h
#if ENABLE(ASYNC_SCROLLING)
#include "RemoteScrollingCoordinator.h"
#include <WebCore/ScrollingConstraints.h>
#include <WebCore/ScrollingTree.h>
namespace WebKit {
class RemoteScrollingCoordinatorProxy;
class RemoteScrollingTree : public WebCore::ScrollingTree {
public:
static Ref<RemoteScrollingTree> create(RemoteScrollingCoordinatorProxy&);
virtual ~RemoteScrollingTree();
virtual bool isRemoteScrollingTree() const override { return true; }
virtual EventResult tryToHandleWheelEvent(const WebCore::PlatformWheelEvent&) override;
const RemoteScrollingCoordinatorProxy& scrollingCoordinatorProxy() const { return m_scrollingCoordinatorProxy; }
virtual void scrollingTreeNodeDidScroll(WebCore::ScrollingNodeID, const WebCore::FloatPoint& scrollPosition, WebCore::SetOrSyncScrollingLayerPosition = WebCore::SyncScrollingLayerPosition) override;
virtual void scrollingTreeNodeRequestsScroll(WebCore::ScrollingNodeID, const WebCore::FloatPoint& scrollPosition, bool representsProgrammaticScroll) override;
void currentSnapPointIndicesDidChange(WebCore::ScrollingNodeID, unsigned horizontal, unsigned vertical) override;
private:
explicit RemoteScrollingTree(RemoteScrollingCoordinatorProxy&);
#if PLATFORM(MAC)
virtual void handleWheelEventPhase(WebCore::PlatformWheelEventPhase) override;
#endif
#if PLATFORM(IOS)
virtual WebCore::FloatRect fixedPositionRect() override;
virtual void scrollingTreeNodeWillStartPanGesture() override;
virtual void scrollingTreeNodeWillStartScroll() override;
virtual void scrollingTreeNodeDidEndScroll() override;
#endif
virtual PassRefPtr<WebCore::ScrollingTreeNode> createScrollingTreeNode(WebCore::ScrollingNodeType, WebCore::ScrollingNodeID) override;
RemoteScrollingCoordinatorProxy& m_scrollingCoordinatorProxy;
};
} // namespace WebKit
SPECIALIZE_TYPE_TRAITS_SCROLLING_TREE(WebKit::RemoteScrollingTree, isRemoteScrollingTree());
#endif // ENABLE(ASYNC_SCROLLING)
#endif // RemoteScrollingTree_h
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