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/*
* Copyright (C) 2012, 2014, 2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "RuleFeature.h"
#include "RuleSet.h"
#include <wtf/Forward.h>
#include <wtf/HashMap.h>
namespace WebCore {
class Document;
class Element;
class ShadowRoot;
class StyleSheetContents;
namespace MQ {
class MediaQueryEvaluator;
}
namespace Style {
class Scope;
struct InvalidationRuleSet;
struct SelectorMatchingState;
class Invalidator {
public:
Invalidator(const Vector<StyleSheetContents*>&, const MQ::MediaQueryEvaluator&);
Invalidator(const InvalidationRuleSetVector&);
~Invalidator();
bool dirtiesAllStyle() const { return m_dirtiesAllStyle; }
void invalidateStyle(Document&);
void invalidateStyle(Scope&);
void invalidateStyle(ShadowRoot&);
void invalidateStyle(Element&);
static void invalidateShadowParts(ShadowRoot&);
using MatchElementRuleSets = HashMap<MatchElement, InvalidationRuleSetVector, IntHash<MatchElement>, WTF::StrongEnumHashTraits<MatchElement>>;
static void addToMatchElementRuleSets(Invalidator::MatchElementRuleSets&, const InvalidationRuleSet&);
static void invalidateWithMatchElementRuleSets(Element&, const MatchElementRuleSets&);
static void invalidateAllStyle(Scope&);
static void invalidateHostAndSlottedStyleIfNeeded(ShadowRoot&);
private:
enum class CheckDescendants : bool { No, Yes };
CheckDescendants invalidateIfNeeded(Element&, SelectorMatchingState*);
void invalidateStyleForTree(Element&, SelectorMatchingState*);
void invalidateStyleForDescendants(Element&, SelectorMatchingState*);
void invalidateInShadowTreeIfNeeded(Element&);
void invalidateShadowPseudoElements(ShadowRoot&);
void invalidateStyleWithMatchElement(Element&, MatchElement);
struct RuleInformation {
bool hasSlottedPseudoElementRules { false };
bool hasHostPseudoClassRules { false };
bool hasShadowPseudoElementRules { false };
bool hasCuePseudoElementRules { false };
bool hasPartPseudoElementRules { false };
};
RuleInformation collectRuleInformation();
RefPtr<RuleSet> m_ownedRuleSet;
const InvalidationRuleSetVector m_ruleSets;
RuleInformation m_ruleInformation;
bool m_dirtiesAllStyle { false };
};
}
}
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