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