Emilio Cobos Álvarez
e4ecfea530
This will make being more granular with cloning easier, and we don't need it after the previous patch. This leaves DeclarationBlock only for the style attribute for now, we need it for the AttrStyles stuff. But I plan to move that to MiscContainer instead or so. Differential Revision: https://phabricator.services.mozilla.com/D300052
112 lines
3.6 KiB
C++
112 lines
3.6 KiB
C++
/* 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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#ifndef mozilla_CSSNestedDeclarations_h
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#define mozilla_CSSNestedDeclarations_h
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#include "mozilla/ServoBindingTypes.h"
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#include "mozilla/css/Rule.h"
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#include "nsDOMCSSDeclaration.h"
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namespace mozilla {
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class DeclarationBlock;
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namespace dom {
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class DocGroup;
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class CSSNestedDeclarations;
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class CSSNestedDeclarationsDeclaration final : public nsDOMCSSDeclaration {
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public:
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NS_DECL_ISUPPORTS_INHERITED
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css::Rule* GetParentRule() final;
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nsINode* GetAssociatedNode() const final;
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nsISupports* GetParentObject() const final;
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protected:
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Block* GetOrCreateCSSDeclaration(Operation aOperation,
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Block** aCreated) final;
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nsresult SetCSSDeclaration(Block* aDecl,
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MutationClosureData* aClosureData) final;
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ParsingEnvironment GetParsingEnvironment(
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nsIPrincipal* aSubjectPrincipal) const final;
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private:
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// For accessing the constructor.
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friend class CSSNestedDeclarations;
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explicit CSSNestedDeclarationsDeclaration(already_AddRefed<Block> aDecls);
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~CSSNestedDeclarationsDeclaration();
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inline CSSNestedDeclarations* Rule();
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inline const CSSNestedDeclarations* Rule() const;
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void SetRawAfterClone(RefPtr<Block>);
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RefPtr<Block> mDecls;
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};
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class CSSNestedDeclarations final : public css::Rule {
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public:
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CSSNestedDeclarations(
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already_AddRefed<StyleLockedNestedDeclarationsRule> aRawRule,
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StyleSheet* aSheet, css::Rule* aParentRule, uint32_t aLine,
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uint32_t aColumn);
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(CSSNestedDeclarations,
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css::Rule)
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bool IsCCLeaf() const final MOZ_MUST_OVERRIDE;
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// WebIDL interface
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StyleCssRuleType Type() const final;
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void GetCssText(nsACString& aCssText) const final;
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nsDOMCSSDeclaration* Style() { return &mDecls; }
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StyleLockedNestedDeclarationsRule* Raw() const { return mRawRule.get(); }
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const StyleLockedDeclarationBlock* RawStyle() const;
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void SetRawAfterClone(RefPtr<StyleLockedNestedDeclarationsRule>);
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// Methods of mozilla::css::Rule
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size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const final;
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#ifdef DEBUG
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void List(FILE* out = stdout, int32_t aIndent = 0) const final;
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#endif
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JSObject* WrapObject(JSContext*, JS::Handle<JSObject*> aGivenProto) override;
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private:
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~CSSNestedDeclarations() = default;
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void GetSelectorDataAtIndex(uint32_t aSelectorIndex, bool aDesugared,
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nsACString* aText, uint64_t* aSpecificity);
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// For computing the offset of mDecls.
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friend class CSSNestedDeclarationsDeclaration;
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RefPtr<StyleLockedNestedDeclarationsRule> mRawRule;
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CSSNestedDeclarationsDeclaration mDecls;
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};
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CSSNestedDeclarations* CSSNestedDeclarationsDeclaration::Rule() {
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return reinterpret_cast<CSSNestedDeclarations*>(
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reinterpret_cast<uint8_t*>(this) -
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offsetof(CSSNestedDeclarations, mDecls));
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}
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const CSSNestedDeclarations* CSSNestedDeclarationsDeclaration::Rule() const {
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return reinterpret_cast<const CSSNestedDeclarations*>(
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reinterpret_cast<const uint8_t*>(this) -
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offsetof(CSSNestedDeclarations, mDecls));
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}
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// CSSNestedDeclarations is the only rule type that doesn't end up with "Rule".
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// This alias helps for consistency.
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using CSSNestedDeclarationsRule = CSSNestedDeclarations;
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_CSSNestedDeclarations_h
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