/* * Copyright (C) 2019 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) && PLATFORM(IOS_FAMILY) #include <WebCore/ScrollingTreeFrameScrollingNode.h> namespace WebKit { class ScrollingTreeScrollingNodeDelegateIOS; class ScrollingTreeFrameScrollingNodeRemoteIOS : public WebCore::ScrollingTreeFrameScrollingNode { public: static Ref<ScrollingTreeFrameScrollingNodeRemoteIOS> create(WebCore::ScrollingTree&, WebCore::ScrollingNodeType, WebCore::ScrollingNodeID); virtual ~ScrollingTreeFrameScrollingNodeRemoteIOS(); private: ScrollingTreeFrameScrollingNodeRemoteIOS(WebCore::ScrollingTree&, WebCore::ScrollingNodeType, WebCore::ScrollingNodeID); void commitStateBeforeChildren(const WebCore::ScrollingStateNode&) override; void commitStateAfterChildren(const WebCore::ScrollingStateNode&) override; WebCore::FloatPoint minimumScrollPosition() const override; WebCore::FloatPoint maximumScrollPosition() const override; void repositionScrollingLayers() override; void repositionRelatedLayers() override; std::unique_ptr<ScrollingTreeScrollingNodeDelegateIOS> m_scrollingNodeDelegate; RetainPtr<CALayer> m_counterScrollingLayer; RetainPtr<CALayer> m_headerLayer; RetainPtr<CALayer> m_footerLayer; }; } // namespace WebKit #endif // ENABLE(ASYNC_SCROLLING) && PLATFORM(IOS_FAMILY)