1 /* 2 * Copyright (C) 2013 Google, Inc. 3 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 4 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22 #ifndef CachedUAStyle_h 23 #define CachedUAStyle_h 24 25 #include "core/rendering/style/RenderStyle.h" 26 27 namespace WebCore { 28 29 // RenderTheme::adjustStyle wants the background and borders 30 // as specified by the UA sheets, excluding any author rules. 31 // We use this class to cache those values during 32 // applyMatchedProperties for later use during adjustRenderStyle. 33 class CachedUAStyle { 34 public: CachedUAStyle()35 CachedUAStyle() 36 : hasAppearance(false) 37 , backgroundLayers(BackgroundFillLayer) 38 { } 39 CachedUAStyle(const RenderStyle * style)40 explicit CachedUAStyle(const RenderStyle* style) 41 : hasAppearance(style->hasAppearance()) 42 , backgroundLayers(BackgroundFillLayer) 43 { 44 // RenderTheme::adjustStyle is the only consumer of this data. 45 // It only cares about the styles if appearance is set, 46 // so we cheat and don't bother to copy them when !hasAppearance. 47 if (!hasAppearance) 48 return; 49 border = style->border(); 50 backgroundLayers = *style->backgroundLayers(); 51 backgroundColor = style->backgroundColor(); 52 } 53 54 bool hasAppearance; 55 BorderData border; 56 FillLayer backgroundLayers; 57 Color backgroundColor; 58 }; 59 60 61 } // namespace WebCore 62 63 #endif // CachedUAStyle_h 64