| /* |
| * 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. |
| */ |
| |
| #import "config.h" |
| #import "ScrollingStateScrollingNode.h" |
| |
| #if ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC) |
| |
| #import "GraphicsLayer.h" |
| #import "Scrollbar.h" |
| #import "ScrollbarThemeMac.h" |
| #import "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(Property::PainterForScrollbar); |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC) |