1/* 2 * Copyright (C) 2013 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "ScrollingStateFrameScrollingNode.h" 28 29#include "GraphicsLayer.h" 30#include "Scrollbar.h" 31#include "ScrollbarThemeMac.h" 32#include "ScrollingStateTree.h" 33 34#if ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC) 35 36namespace WebCore { 37 38void ScrollingStateFrameScrollingNode::setScrollbarPaintersFromScrollbars(Scrollbar* verticalScrollbar, Scrollbar* horizontalScrollbar) 39{ 40 ScrollbarTheme* scrollbarTheme = ScrollbarTheme::theme(); 41 if (scrollbarTheme->isMockTheme()) 42 return; 43 ScrollbarThemeMac* macTheme = static_cast<ScrollbarThemeMac*>(scrollbarTheme); 44 45 ScrollbarPainter verticalPainter = verticalScrollbar && verticalScrollbar->supportsUpdateOnSecondaryThread() 46 ? macTheme->painterForScrollbar(verticalScrollbar) : 0; 47 ScrollbarPainter horizontalPainter = horizontalScrollbar && horizontalScrollbar->supportsUpdateOnSecondaryThread() 48 ? macTheme->painterForScrollbar(horizontalScrollbar) : 0; 49 50 if (m_verticalScrollbarPainter == verticalPainter && m_horizontalScrollbarPainter == horizontalPainter) 51 return; 52 53 m_verticalScrollbarPainter = verticalPainter; 54 m_horizontalScrollbarPainter = horizontalPainter; 55 56 setPropertyChanged(PainterForScrollbar); 57} 58 59} // namespace WebCore 60 61#endif // ENABLE(ASYNC_SCROLLING) && PLATFORM(MAC) 62