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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
* style sheet and style rule processor representing style attributes
*/
#ifndef nsHTMLCSSStyleSheet_h_
#define nsHTMLCSSStyleSheet_h_
#include "mozilla/Attributes.h"
#include "mozilla/MemoryReporting.h"
#include "nsDataHashtable.h"
#include "nsIStyleRuleProcessor.h"
class nsRuleWalker;
struct MiscContainer;
namespace mozilla {
enum class CSSPseudoElementType : uint8_t;
namespace dom {
class Element;
} // namespace dom
} // namespace mozilla
class nsHTMLCSSStyleSheet final : public nsIStyleRuleProcessor
{
public:
nsHTMLCSSStyleSheet();
NS_DECL_ISUPPORTS
// nsIStyleRuleProcessor
virtual void RulesMatching(ElementRuleProcessorData* aData) override;
virtual void RulesMatching(PseudoElementRuleProcessorData* aData) override;
virtual void RulesMatching(AnonBoxRuleProcessorData* aData) override;
#ifdef MOZ_XUL
virtual void RulesMatching(XULTreeRuleProcessorData* aData) override;
#endif
virtual nsRestyleHint HasStateDependentStyle(StateRuleProcessorData* aData) override;
virtual nsRestyleHint HasStateDependentStyle(PseudoElementStateRuleProcessorData* aData) override;
virtual bool HasDocumentStateDependentStyle(StateRuleProcessorData* aData) override;
virtual nsRestyleHint
HasAttributeDependentStyle(AttributeRuleProcessorData* aData,
mozilla::RestyleHintData& aRestyleHintDataResult) override;
virtual bool MediumFeaturesChanged(nsPresContext* aPresContext) override;
virtual size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf)
const MOZ_MUST_OVERRIDE override;
virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf)
const MOZ_MUST_OVERRIDE override;
// Variants of RulesMatching method above that is specific to this
// rule processor.
void ElementRulesMatching(nsPresContext* aPresContext,
mozilla::dom::Element* aElement,
nsRuleWalker* aRuleWalker);
// aPseudoElement here is the content node for the pseudo-element, not
// its corresponding real element.
void PseudoElementRulesMatching(mozilla::dom::Element* aPseudoElement,
mozilla::CSSPseudoElementType aPseudoType,
nsRuleWalker* aRuleWalker);
void CacheStyleAttr(const nsAString& aSerialized, MiscContainer* aValue);
void EvictStyleAttr(const nsAString& aSerialized, MiscContainer* aValue);
MiscContainer* LookupStyleAttr(const nsAString& aSerialized);
private:
~nsHTMLCSSStyleSheet();
nsHTMLCSSStyleSheet(const nsHTMLCSSStyleSheet& aCopy) = delete;
nsHTMLCSSStyleSheet& operator=(const nsHTMLCSSStyleSheet& aCopy) = delete;
protected:
nsDataHashtable<nsStringHashKey, MiscContainer*> mCachedStyleAttrs;
};
#endif /* !defined(nsHTMLCSSStyleSheet_h_) */
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