62 lines
2.6 KiB
Plaintext
62 lines
2.6 KiB
Plaintext
/*
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* Copyright (C) 2019 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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#import "config.h"
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#import "ScrollingStateScrollingNode.h"
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#if ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC)
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#import "GraphicsLayer.h"
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#import "Scrollbar.h"
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#import "ScrollbarThemeMac.h"
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#import "ScrollingStateTree.h"
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namespace WebCore {
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void ScrollingStateScrollingNode::setScrollerImpsFromScrollbars(Scrollbar* verticalScrollbar, Scrollbar* horizontalScrollbar)
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{
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ScrollbarTheme& scrollbarTheme = ScrollbarTheme::theme();
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if (scrollbarTheme.isMockTheme())
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return;
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ScrollbarThemeMac& macTheme = static_cast<ScrollbarThemeMac&>(scrollbarTheme);
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NSScrollerImp *verticalPainter = verticalScrollbar && verticalScrollbar->supportsUpdateOnSecondaryThread()
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? macTheme.painterForScrollbar(*verticalScrollbar) : nullptr;
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NSScrollerImp *horizontalPainter = horizontalScrollbar && horizontalScrollbar->supportsUpdateOnSecondaryThread()
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? macTheme.painterForScrollbar(*horizontalScrollbar) : nullptr;
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if (m_verticalScrollerImp == verticalPainter && m_horizontalScrollerImp == horizontalPainter)
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return;
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m_verticalScrollerImp = verticalPainter;
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m_horizontalScrollerImp = horizontalPainter;
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setPropertyChanged(Property::PainterForScrollbar);
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}
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} // namespace WebCore
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#endif // ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC)
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