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Instead of trying to match the actual attribute rules, lets just look at the HashSet of attribute names. This is faster, though possibly less optimal if you use compound rules like .foo[attr]. That's rare though, and removing this extra RuleSet will allow simplifying SelectorChecker since hasAnyMatchingRules required a special mode where it tried to match selectors but ignored if the scope could really match. This paves the way to moving the RuleFeatureSet to be per-TreeScope instead of per-Document. I also made the API of classNamesAffectedByRules match the newly added attributesAffectedByRules to make SharedStyleFinder consistent. R=ojan@chromium.org Review URL: https://codereview.chromium.org/796583002
85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef SKY_ENGINE_CORE_CSS_RULEFEATURE_H_
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#define SKY_ENGINE_CORE_CSS_RULEFEATURE_H_
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#include "sky/engine/core/css/CSSSelector.h"
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#include "sky/engine/wtf/Forward.h"
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#include "sky/engine/wtf/HashSet.h"
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#include "sky/engine/wtf/text/AtomicStringHash.h"
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namespace blink {
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class CSSSelectorList;
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class Element;
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class QualifiedName;
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class RuleData;
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class SpaceSplitString;
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class RuleFeatureSet {
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public:
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RuleFeatureSet();
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~RuleFeatureSet();
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void add(const RuleFeatureSet&);
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void clear();
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void collectFeaturesFromSelector(const CSSSelector&);
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inline bool hasSelectorForAttribute(const AtomicString& attributeName) const
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{
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ASSERT(!attributeName.isEmpty());
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return m_attributeNames.contains(attributeName);
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}
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inline bool hasSelectorForClass(const AtomicString& classValue) const
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{
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ASSERT(!classValue.isEmpty());
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return m_classNames.contains(classValue);
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}
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inline bool hasSelectorForId(const AtomicString& idValue) const
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{
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ASSERT(!idValue.isEmpty());
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return m_idNames.contains(idValue);
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}
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void scheduleStyleInvalidationForClassChange(const SpaceSplitString& changedClasses, Element&);
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void scheduleStyleInvalidationForClassChange(const SpaceSplitString& oldClasses, const SpaceSplitString& newClasses, Element&);
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void scheduleStyleInvalidationForClassChange(const AtomicString& className, Element& element);
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void scheduleStyleInvalidationForAttributeChange(const QualifiedName& attributeName, Element&);
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void scheduleStyleInvalidationForIdChange(const AtomicString& oldId, const AtomicString& newId, Element&);
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private:
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void addSelectorFeatures(const CSSSelector&);
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void collectFeaturesFromSelectorList(const CSSSelectorList*);
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HashSet<AtomicString> m_classNames;
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HashSet<AtomicString> m_attributeNames;
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HashSet<AtomicString> m_idNames;
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};
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} // namespace blink
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#endif // SKY_ENGINE_CORE_CSS_RULEFEATURE_H_
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