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