/* * Copyright (C) 2019 Apple Inc. All rights reserved. * Copyright (C) 2019 Igalia S.L. * * 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT * HOLDER OR 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) && USE(NICOSIA) #include "ScrollingTreeOverflowScrollingNode.h" namespace WebCore { class ScrollAnimationKinetic; class ScrollingTreeOverflowScrollingNodeNicosia final : public ScrollingTreeOverflowScrollingNode { public: static Ref<ScrollingTreeOverflowScrollingNode> create(ScrollingTree&, ScrollingNodeID); virtual ~ScrollingTreeOverflowScrollingNodeNicosia(); private: ScrollingTreeOverflowScrollingNodeNicosia(ScrollingTree&, ScrollingNodeID); void commitStateAfterChildren(const ScrollingStateNode&) override; FloatPoint adjustedScrollPosition(const FloatPoint&, ScrollClamping) const override; void repositionScrollingLayers() override; WheelEventHandlingResult handleWheelEvent(const PlatformWheelEvent&) override; void stopScrollAnimations() override; #if ENABLE(KINETIC_SCROLLING) std::unique_ptr<ScrollAnimationKinetic> m_kineticAnimation; #endif }; } // namespace WebCore #endif // ENABLE(ASYNC_SCROLLING) && USE(NICOSIA)