1/* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 * 20 */ 21 22#ifndef RuleFeature_h 23#define RuleFeature_h 24 25#include <wtf/Forward.h> 26#include <wtf/HashMap.h> 27#include <wtf/HashSet.h> 28#include <wtf/text/AtomicString.h> 29 30namespace WebCore { 31 32class StyleRule; 33class CSSSelector; 34 35struct RuleFeature { 36 RuleFeature(StyleRule* rule, unsigned selectorIndex, bool hasDocumentSecurityOrigin) 37 : rule(rule) 38 , selectorIndex(selectorIndex) 39 , hasDocumentSecurityOrigin(hasDocumentSecurityOrigin) 40 { 41 } 42 StyleRule* rule; 43 unsigned selectorIndex; 44 bool hasDocumentSecurityOrigin; 45}; 46 47struct RuleFeatureSet { 48 RuleFeatureSet() 49 : usesFirstLineRules(false) 50 , usesFirstLetterRules(false) 51 , usesBeforeAfterRules(false) 52 { } 53 54 void add(const RuleFeatureSet&); 55 void clear(); 56 57 void collectFeaturesFromSelector(const CSSSelector*); 58 59 HashSet<AtomicStringImpl*> idsInRules; 60 HashSet<AtomicStringImpl*> classesInRules; 61 HashSet<AtomicStringImpl*> attrsInRules; 62 Vector<RuleFeature> siblingRules; 63 Vector<RuleFeature> uncommonAttributeRules; 64 bool usesFirstLineRules; 65 bool usesFirstLetterRules; 66 bool usesBeforeAfterRules; 67}; 68 69} // namespace WebCore 70 71#endif // RuleFeature_h 72