blob: 4b7aa7f2173bd9bd763c4fba5414e1404dbc165e [file] [log] [blame]
/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
* Copyright (C) 2013 Google 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.
*
*/
#pragma once
#include "RuleFeature.h"
#include "RuleSet.h"
#include "UserAgentStyle.h"
#include <memory>
#include <wtf/HashMap.h>
#include <wtf/RefPtr.h>
#include <wtf/Vector.h>
namespace WebCore {
class CSSStyleRule;
class CSSStyleSheet;
class ExtensionStyleSheets;
class InspectorCSSOMWrappers;
class MediaQueryEvaluator;
namespace Style {
class Resolver;
struct InvalidationRuleSet {
MatchElement matchElement;
std::unique_ptr<RuleSet> ruleSet;
Vector<const CSSSelector*> invalidationSelectors;
WTF_MAKE_FAST_ALLOCATED;
};
class ScopeRuleSets {
public:
ScopeRuleSets(Resolver&);
~ScopeRuleSets();
bool isAuthorStyleDefined() const { return m_isAuthorStyleDefined; }
RuleSet* userAgentMediaQueryStyle() const;
RuleSet& authorStyle() const { return *m_authorStyle.get(); }
RuleSet* userStyle() const;
const RuleFeatureSet& features() const;
RuleSet* sibling() const { return m_siblingRuleSet.get(); }
RuleSet* uncommonAttribute() const { return m_uncommonAttributeRuleSet.get(); }
const Vector<InvalidationRuleSet>* classInvalidationRuleSets(const AtomString& className) const;
const Vector<InvalidationRuleSet>* attributeInvalidationRuleSets(const AtomString& attributeName) const;
bool hasComplexSelectorsForStyleAttribute() const;
void setIsForShadowScope() { m_isForShadowScope = true; }
void setUsesSharedUserStyle(bool b) { m_usesSharedUserStyle = b; }
void initializeUserStyle();
void resetAuthorStyle();
void appendAuthorStyleSheets(const Vector<RefPtr<CSSStyleSheet>>&, MediaQueryEvaluator*, InspectorCSSOMWrappers&);
void resetUserAgentMediaQueryStyle();
RuleFeatureSet& mutableFeatures();
bool& isInvalidatingStyleWithRuleSets() { return m_isInvalidatingStyleWithRuleSets; }
private:
void collectFeatures() const;
void collectRulesFromUserStyleSheets(const Vector<RefPtr<CSSStyleSheet>>&, RuleSet& userStyle, const MediaQueryEvaluator&);
void updateUserAgentMediaQueryStyleIfNeeded() const;
std::unique_ptr<RuleSet> m_authorStyle;
mutable std::unique_ptr<RuleSet> m_userAgentMediaQueryStyle;
std::unique_ptr<RuleSet> m_userStyle;
Resolver& m_styleResolver;
mutable RuleFeatureSet m_features;
mutable std::unique_ptr<RuleSet> m_siblingRuleSet;
mutable std::unique_ptr<RuleSet> m_uncommonAttributeRuleSet;
mutable HashMap<AtomString, std::unique_ptr<Vector<InvalidationRuleSet>>> m_classInvalidationRuleSets;
mutable HashMap<AtomString, std::unique_ptr<Vector<InvalidationRuleSet>>> m_attributeInvalidationRuleSets;
mutable Optional<bool> m_cachedHasComplexSelectorsForStyleAttribute;
mutable unsigned m_defaultStyleVersionOnFeatureCollection { 0 };
mutable unsigned m_userAgentMediaQueryRuleCountOnUpdate { 0 };
bool m_usesSharedUserStyle { false };
bool m_isForShadowScope { false };
bool m_isAuthorStyleDefined { false };
// For catching <rdar://problem/53413013>
bool m_isInvalidatingStyleWithRuleSets { false };
};
inline const RuleFeatureSet& ScopeRuleSets::features() const
{
if (m_defaultStyleVersionOnFeatureCollection < UserAgentStyle::defaultStyleVersion)
collectFeatures();
return m_features;
}
// FIXME: There should be just the const version.
inline RuleFeatureSet& ScopeRuleSets::mutableFeatures()
{
if (m_defaultStyleVersionOnFeatureCollection < UserAgentStyle::defaultStyleVersion)
collectFeatures();
return m_features;
}
} // namespace Style
} // namespace WebCore