| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #ifndef RuleFeature_h |
| #define RuleFeature_h |
| |
| #include "wtf/Forward.h" |
| #include "wtf/HashSet.h" |
| #include "wtf/text/AtomicStringHash.h" |
| |
| namespace WebCore { |
| |
| class StyleRule; |
| class CSSSelector; |
| class CSSSelectorList; |
| |
| struct RuleFeature { |
| RuleFeature(StyleRule* rule, unsigned selectorIndex, bool hasDocumentSecurityOrigin) |
| : rule(rule) |
| , selectorIndex(selectorIndex) |
| , hasDocumentSecurityOrigin(hasDocumentSecurityOrigin) |
| { |
| } |
| StyleRule* rule; |
| unsigned selectorIndex; |
| bool hasDocumentSecurityOrigin; |
| }; |
| |
| class RuleFeatureSet { |
| public: |
| RuleFeatureSet() |
| : m_usesFirstLineRules(false) |
| , m_usesBeforeAfterRules(false) |
| { } |
| |
| void add(const RuleFeatureSet&); |
| void clear(); |
| |
| void collectFeaturesFromSelector(const CSSSelector*); |
| |
| bool usesSiblingRules() const { return !siblingRules.isEmpty(); } |
| bool usesFirstLineRules() const { return m_usesFirstLineRules; } |
| bool usesBeforeAfterRules() const { return m_usesBeforeAfterRules; } |
| |
| inline bool hasSelectorForAttribute(const AtomicString& attributeName) const |
| { |
| ASSERT(!attributeName.isEmpty()); |
| return attrsInRules.contains(attributeName); |
| } |
| |
| inline bool hasSelectorForClass(const AtomicString& classValue) const |
| { |
| ASSERT(!classValue.isEmpty()); |
| return classesInRules.contains(classValue); |
| } |
| |
| inline bool hasSelectorForId(const AtomicString& idValue) const |
| { |
| ASSERT(!idValue.isEmpty()); |
| return idsInRules.contains(idValue); |
| } |
| |
| HashSet<AtomicString> idsInRules; |
| HashSet<AtomicString> classesInRules; |
| HashSet<AtomicString> attrsInRules; |
| Vector<RuleFeature> siblingRules; |
| Vector<RuleFeature> uncommonAttributeRules; |
| private: |
| void collectFeaturesFromSelectorList(const CSSSelectorList*); |
| |
| bool m_usesFirstLineRules; |
| bool m_usesBeforeAfterRules; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // RuleFeature_h |