157 lines
6.6 KiB
C++
157 lines
6.6 KiB
C++
/*
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* Copyright (C) 2012, 2014-2015 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(ASYNC_SCROLLING)
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#include "ScrollSnapOffsetsInfo.h"
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#include "ScrollTypes.h"
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#include "ScrollingCoordinator.h"
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#include "ScrollingStateNode.h"
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#if PLATFORM(COCOA)
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OBJC_CLASS NSScrollerImp;
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#endif
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namespace WebCore {
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struct RequestedScrollData {
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FloatPoint scrollPosition;
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ScrollType scrollType { ScrollType::User };
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ScrollClamping clamping { ScrollClamping::Clamped };
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bool operator==(const RequestedScrollData& other) const
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{
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return scrollPosition == other.scrollPosition
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&& scrollType == other.scrollType
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&& clamping == other.clamping;
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}
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};
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class ScrollingStateScrollingNode : public ScrollingStateNode {
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public:
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virtual ~ScrollingStateScrollingNode();
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const FloatSize& scrollableAreaSize() const { return m_scrollableAreaSize; }
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WEBCORE_EXPORT void setScrollableAreaSize(const FloatSize&);
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const FloatSize& totalContentsSize() const { return m_totalContentsSize; }
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WEBCORE_EXPORT void setTotalContentsSize(const FloatSize&);
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const FloatSize& reachableContentsSize() const { return m_reachableContentsSize; }
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WEBCORE_EXPORT void setReachableContentsSize(const FloatSize&);
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const FloatPoint& scrollPosition() const { return m_scrollPosition; }
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WEBCORE_EXPORT void setScrollPosition(const FloatPoint&);
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const IntPoint& scrollOrigin() const { return m_scrollOrigin; }
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WEBCORE_EXPORT void setScrollOrigin(const IntPoint&);
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const FloatScrollSnapOffsetsInfo& snapOffsetsInfo() const { return m_snapOffsetsInfo; }
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WEBCORE_EXPORT void setSnapOffsetsInfo(const FloatScrollSnapOffsetsInfo& newOffsetsInfo);
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std::optional<unsigned> currentHorizontalSnapPointIndex() const { return m_currentHorizontalSnapPointIndex; }
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WEBCORE_EXPORT void setCurrentHorizontalSnapPointIndex(std::optional<unsigned>);
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std::optional<unsigned> currentVerticalSnapPointIndex() const { return m_currentVerticalSnapPointIndex; }
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WEBCORE_EXPORT void setCurrentVerticalSnapPointIndex(std::optional<unsigned>);
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const ScrollableAreaParameters& scrollableAreaParameters() const { return m_scrollableAreaParameters; }
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WEBCORE_EXPORT void setScrollableAreaParameters(const ScrollableAreaParameters& params);
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#if ENABLE(SCROLLING_THREAD)
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OptionSet<SynchronousScrollingReason> synchronousScrollingReasons() const { return m_synchronousScrollingReasons; }
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WEBCORE_EXPORT void setSynchronousScrollingReasons(OptionSet<SynchronousScrollingReason>);
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bool hasSynchronousScrollingReasons() const { return !m_synchronousScrollingReasons.isEmpty(); }
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#endif
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const RequestedScrollData& requestedScrollData() const { return m_requestedScrollData; }
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WEBCORE_EXPORT void setRequestedScrollData(const RequestedScrollData&);
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bool isMonitoringWheelEvents() const { return m_isMonitoringWheelEvents; }
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WEBCORE_EXPORT void setIsMonitoringWheelEvents(bool);
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const LayerRepresentation& scrollContainerLayer() const { return m_scrollContainerLayer; }
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WEBCORE_EXPORT void setScrollContainerLayer(const LayerRepresentation&);
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// This is a layer with the contents that move.
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const LayerRepresentation& scrolledContentsLayer() const { return m_scrolledContentsLayer; }
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WEBCORE_EXPORT void setScrolledContentsLayer(const LayerRepresentation&);
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const LayerRepresentation& horizontalScrollbarLayer() const { return m_horizontalScrollbarLayer; }
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WEBCORE_EXPORT void setHorizontalScrollbarLayer(const LayerRepresentation&);
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const LayerRepresentation& verticalScrollbarLayer() const { return m_verticalScrollbarLayer; }
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WEBCORE_EXPORT void setVerticalScrollbarLayer(const LayerRepresentation&);
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#if PLATFORM(MAC)
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NSScrollerImp *verticalScrollerImp() const { return m_verticalScrollerImp.get(); }
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NSScrollerImp *horizontalScrollerImp() const { return m_horizontalScrollerImp.get(); }
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#endif
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void setScrollerImpsFromScrollbars(Scrollbar* verticalScrollbar, Scrollbar* horizontalScrollbar);
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protected:
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ScrollingStateScrollingNode(ScrollingStateTree&, ScrollingNodeType, ScrollingNodeID);
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ScrollingStateScrollingNode(const ScrollingStateScrollingNode&, ScrollingStateTree&);
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OptionSet<Property> applicableProperties() const override;
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void dumpProperties(WTF::TextStream&, ScrollingStateTreeAsTextBehavior) const override;
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private:
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FloatSize m_scrollableAreaSize;
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FloatSize m_totalContentsSize;
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FloatSize m_reachableContentsSize;
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FloatPoint m_scrollPosition;
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IntPoint m_scrollOrigin;
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FloatScrollSnapOffsetsInfo m_snapOffsetsInfo;
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std::optional<unsigned> m_currentHorizontalSnapPointIndex;
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std::optional<unsigned> m_currentVerticalSnapPointIndex;
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LayerRepresentation m_scrollContainerLayer;
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LayerRepresentation m_scrolledContentsLayer;
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LayerRepresentation m_horizontalScrollbarLayer;
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LayerRepresentation m_verticalScrollbarLayer;
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#if PLATFORM(MAC)
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RetainPtr<NSScrollerImp> m_verticalScrollerImp;
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RetainPtr<NSScrollerImp> m_horizontalScrollerImp;
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#endif
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ScrollableAreaParameters m_scrollableAreaParameters;
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RequestedScrollData m_requestedScrollData;
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#if ENABLE(SCROLLING_THREAD)
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OptionSet<SynchronousScrollingReason> m_synchronousScrollingReasons;
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#endif
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bool m_isMonitoringWheelEvents { false };
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};
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} // namespace WebCore
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SPECIALIZE_TYPE_TRAITS_SCROLLING_STATE_NODE(ScrollingStateScrollingNode, isScrollingNode())
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#endif // ENABLE(ASYNC_SCROLLING)
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