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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#ifndef mozilla_CSSNestedDeclarations_h
#define mozilla_CSSNestedDeclarations_h
#include "mozilla/css/Rule.h"
#include "mozilla/ServoBindingTypes.h"
#include "nsDOMCSSDeclaration.h"
namespace mozilla {
class DeclarationBlock;
namespace dom {
class DocGroup;
class CSSNestedDeclarations;
class CSSNestedDeclarationsDeclaration final : public nsDOMCSSDeclaration {
public:
NS_DECL_ISUPPORTS_INHERITED
css::Rule* GetParentRule() final;
nsINode* GetAssociatedNode() const final;
nsISupports* GetParentObject() const final;
protected:
DeclarationBlock* GetOrCreateCSSDeclaration(
Operation aOperation, DeclarationBlock** aCreated) final;
nsresult SetCSSDeclaration(DeclarationBlock* aDecl,
MutationClosureData* aClosureData) final;
ParsingEnvironment GetParsingEnvironment(
nsIPrincipal* aSubjectPrincipal) const final;
private:
// For accessing the constructor.
friend class CSSNestedDeclarations;
explicit CSSNestedDeclarationsDeclaration(
already_AddRefed<StyleLockedDeclarationBlock> aDecls);
~CSSNestedDeclarationsDeclaration();
inline CSSNestedDeclarations* Rule();
inline const CSSNestedDeclarations* Rule() const;
void SetRawAfterClone(RefPtr<StyleLockedDeclarationBlock>);
RefPtr<DeclarationBlock> mDecls;
};
class CSSNestedDeclarations final : public css::Rule {
public:
CSSNestedDeclarations(
already_AddRefed<StyleLockedNestedDeclarationsRule> aRawRule,
StyleSheet* aSheet, css::Rule* aParentRule, uint32_t aLine,
uint32_t aColumn);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(CSSNestedDeclarations,
css::Rule)
bool IsCCLeaf() const final MOZ_MUST_OVERRIDE;
// WebIDL interface
StyleCssRuleType Type() const final;
void GetCssText(nsACString& aCssText) const final;
nsICSSDeclaration* Style() { return &mDecls; }
StyleLockedNestedDeclarationsRule* Raw() const { return mRawRule.get(); }
const StyleLockedDeclarationBlock* RawStyle() const;
void SetRawAfterClone(RefPtr<StyleLockedNestedDeclarationsRule>);
// Methods of mozilla::css::Rule
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const final;
#ifdef DEBUG
void List(FILE* out = stdout, int32_t aIndent = 0) const final;
#endif
JSObject* WrapObject(JSContext*, JS::Handle<JSObject*> aGivenProto) override;
private:
~CSSNestedDeclarations() = default;
void GetSelectorDataAtIndex(uint32_t aSelectorIndex, bool aDesugared,
nsACString* aText, uint64_t* aSpecificity);
// For computing the offset of mDecls.
friend class CSSNestedDeclarationsDeclaration;
RefPtr<StyleLockedNestedDeclarationsRule> mRawRule;
CSSNestedDeclarationsDeclaration mDecls;
};
CSSNestedDeclarations* CSSNestedDeclarationsDeclaration::Rule() {
return reinterpret_cast<CSSNestedDeclarations*>(
reinterpret_cast<uint8_t*>(this) -
offsetof(CSSNestedDeclarations, mDecls));
}
const CSSNestedDeclarations* CSSNestedDeclarationsDeclaration::Rule() const {
return reinterpret_cast<const CSSNestedDeclarations*>(
reinterpret_cast<const uint8_t*>(this) -
offsetof(CSSNestedDeclarations, mDecls));
}
// CSSNestedDeclarations is the only rule type that doesn't end up with "Rule".
// This alias helps for consistency.
using CSSNestedDeclarationsRule = CSSNestedDeclarations;
} // namespace dom
} // namespace mozilla
#endif // mozilla_CSSNestedDeclarations_h
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