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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;
class ElementRuleCollector {
public:
ElementRuleCollector(Element& element, RenderStyle* style, const DocumentRuleSets& ruleSets, const SelectorFilter& selectorFilter)
: m_element(element)
, m_style(style)
, m_ruleSets(ruleSets)
, m_selectorFilter(selectorFilter)
, m_isPrintStyle(false)
, m_regionForStyling(0)
, m_pseudoStyleRequest(NOPSEUDO)
, m_sameOriginOnly(false)
, m_mode(SelectorChecker::Mode::ResolvingStyle)
, m_canUseFastReject(m_selectorFilter.parentStackIsConsistent(element.parentNode()))
{
}
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(RenderRegion* regionForStyling) { m_regionForStyling = regionForStyling; }
void setMedium(const MediaQueryEvaluator* medium) { m_isPrintStyle = medium->mediaTypeMatchSpecific("print"); }
bool hasAnyMatchingRules(RuleSet*);
StyleResolver::MatchResult& matchedResult();
const Vector<RefPtr<StyleRule>>& matchedRuleList() const;
bool hasMatchedRules() const { return m_matchedRules && !m_matchedRules->isEmpty(); }
void clearMatchedRules();
private:
void addElementStyleProperties(const StyleProperties*, bool isCacheable = true);
void matchUARules(RuleSet*);
void collectMatchingRules(const MatchRequest&, StyleResolver::RuleRange&);
void collectMatchingRulesForRegion(const MatchRequest&, StyleResolver::RuleRange&);
void collectMatchingRulesForList(const Vector<RuleData>*, const MatchRequest&, StyleResolver::RuleRange&);
bool ruleMatches(const RuleData&);
void sortMatchedRules();
void sortAndTransferMatchedRules();
void addMatchedRule(const RuleData*);
Element& m_element;
RenderStyle* m_style;
const DocumentRuleSets& m_ruleSets;
const SelectorFilter& m_selectorFilter;
bool m_isPrintStyle;
RenderRegion* m_regionForStyling;
PseudoStyleRequest m_pseudoStyleRequest;
bool m_sameOriginOnly;
SelectorChecker::Mode m_mode;
bool m_canUseFastReject;
std::unique_ptr<Vector<const RuleData*, 32>> m_matchedRules;
// Output.
Vector<RefPtr<StyleRule>> m_matchedRuleList;
StyleResolver::MatchResult m_result;
};
} // namespace WebCore
#endif // ElementRuleCollector_h
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