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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2013, 2014 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 ElementRuleCollector_h
#define ElementRuleCollector_h
#include "MediaQueryEvaluator.h"
#include "SelectorChecker.h"
#include "StyleResolver.h"
#include <memory>
#include <wtf/RefPtr.h>
#include <wtf/Vector.h>
namespace WebCore {
class DocumentRuleSets;
class MatchRequest;
class RenderRegion;
class RuleData;
class RuleSet;
class SelectorFilter;
struct MatchedRule {
const RuleData* ruleData;
unsigned specificity;
};
class ElementRuleCollector {
public:
ElementRuleCollector(Element&, RenderStyle*, const DocumentRuleSets&, const SelectorFilter*);
ElementRuleCollector(Element&, const RuleSet& authorStyle, const SelectorFilter*);
void matchAllRules(bool matchAuthorAndUserStyles, bool includeSMILProperties);
void matchUARules();
void matchAuthorRules(bool includeEmptyRules);
void matchUserRules(bool includeEmptyRules);
void setMode(SelectorChecker::Mode mode) { m_mode = mode; }
void setPseudoStyleRequest(const PseudoStyleRequest& request) { m_pseudoStyleRequest = request; }
void setSameOriginOnly(bool f) { m_sameOriginOnly = f; }
void setRegionForStyling(const RenderRegion* regionForStyling) { m_regionForStyling = regionForStyling; }
void setMedium(const MediaQueryEvaluator* medium) { m_isPrintStyle = medium->mediaTypeMatchSpecific("print"); }
bool hasAnyMatchingRules(const RuleSet*);
StyleResolver::MatchResult& matchedResult();
const Vector<RefPtr<StyleRule>>& matchedRuleList() const;
bool hasMatchedRules() const { return !m_matchedRules.isEmpty(); }
void clearMatchedRules();
private:
void addElementStyleProperties(const StyleProperties*, bool isCacheable = true);
void matchUARules(RuleSet*);
#if ENABLE(SHADOW_DOM)
void matchHostPseudoClassRules(bool includeEmptyRules);
#endif
void collectMatchingRules(const MatchRequest&, StyleResolver::RuleRange&);
void collectMatchingRulesForRegion(const MatchRequest&, StyleResolver::RuleRange&);
void collectMatchingRulesForList(const RuleSet::RuleDataVector*, const MatchRequest&, StyleResolver::RuleRange&);
bool ruleMatches(const RuleData&, unsigned &specificity);
void sortMatchedRules();
void sortAndTransferMatchedRules();
void addMatchedRule(const MatchedRule&);
void commitStyleRelations(const SelectorChecker::StyleRelations&);
Element& m_element;
RenderStyle* m_style { nullptr };
const RuleSet& m_authorStyle;
const RuleSet* m_userStyle { nullptr };
const SelectorFilter* m_selectorFilter { nullptr };
bool m_isPrintStyle { false };
const RenderRegion* m_regionForStyling { nullptr };
PseudoStyleRequest m_pseudoStyleRequest { NOPSEUDO };
bool m_sameOriginOnly { false };
SelectorChecker::Mode m_mode { SelectorChecker::Mode::ResolvingStyle };
Vector<MatchedRule, 64> m_matchedRules;
// Output.
Vector<RefPtr<StyleRule>> m_matchedRuleList;
StyleResolver::MatchResult m_result;
};
} // namespace WebCore
#endif // ElementRuleCollector_h
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