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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_CSSStyleRule_h
#define mozilla_CSSStyleRule_h
#include "mozilla/css/GroupRule.h"
#include "mozilla/ServoBindingTypes.h"
#include "mozilla/NotNull.h"
#include "mozilla/WeakPtr.h"
#include "mozilla/dom/CSSStyleRuleBinding.h"
#include "nsDOMCSSDeclaration.h"
namespace mozilla {
class DeclarationBlock;
namespace dom {
class DocGroup;
class CSSStyleRule;
class CSSStyleRuleDeclaration final : public nsDOMCSSDeclaration {
public:
NS_DECL_ISUPPORTS_INHERITED
css::Rule* GetParentRule() final;
nsINode* GetAssociatedNode() const final;
nsISupports* GetParentObject() const final;
protected:
mozilla::DeclarationBlock* GetOrCreateCSSDeclaration(
Operation aOperation, mozilla::DeclarationBlock** aCreated) final;
nsresult SetCSSDeclaration(DeclarationBlock* aDecl,
MutationClosureData* aClosureData) final;
Document* DocToUpdate() final;
ParsingEnvironment GetParsingEnvironment(
nsIPrincipal* aSubjectPrincipal) const final;
private:
// For accessing the constructor.
friend class CSSStyleRule;
explicit CSSStyleRuleDeclaration(
already_AddRefed<StyleLockedDeclarationBlock> aDecls);
~CSSStyleRuleDeclaration();
inline CSSStyleRule* Rule();
inline const CSSStyleRule* Rule() const;
void SetRawAfterClone(RefPtr<StyleLockedDeclarationBlock>);
RefPtr<DeclarationBlock> mDecls;
};
class CSSStyleRule final : public css::GroupRule, public SupportsWeakPtr {
public:
CSSStyleRule(already_AddRefed<StyleLockedStyleRule> aRawRule,
StyleSheet* aSheet, css::Rule* aParentRule, uint32_t aLine,
uint32_t aColumn);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(CSSStyleRule,
css::GroupRule)
bool IsCCLeaf() const final MOZ_MUST_OVERRIDE;
uint32_t SelectorCount() const;
void SelectorTextAt(uint32_t aSelectorIndex, bool aDesugared,
nsACString& aText);
uint64_t SelectorSpecificityAt(uint32_t aSelectorIndex, bool aDesugared);
bool SelectorMatchesElement(uint32_t aSelectorIndex, dom::Element&,
const nsAString& aPseudo,
bool aRelevantLinkVisited);
NotNull<DeclarationBlock*> GetDeclarationBlock() const;
void GetSelectorWarnings(nsTArray<SelectorWarning>& aResult) const;
// WebIDL interface
StyleCssRuleType Type() const final;
void GetCssText(nsACString& aCssText) const final;
void GetSelectorText(nsACString& aSelectorText);
void SetSelectorText(const nsACString& aSelectorText);
nsICSSDeclaration* Style();
StyleLockedStyleRule* Raw() const { return mRawRule; }
void SetRawAfterClone(RefPtr<StyleLockedStyleRule>);
already_AddRefed<StyleLockedCssRules> GetOrCreateRawRules() final;
// 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:
~CSSStyleRule() = default;
void GetSelectorDataAtIndex(uint32_t aSelectorIndex, bool aDesugared,
nsACString* aText, uint64_t* aSpecificity);
// For computing the offset of mDecls.
friend class CSSStyleRuleDeclaration;
RefPtr<StyleLockedStyleRule> mRawRule;
CSSStyleRuleDeclaration mDecls;
};
CSSStyleRule* CSSStyleRuleDeclaration::Rule() {
return reinterpret_cast<CSSStyleRule*>(reinterpret_cast<uint8_t*>(this) -
offsetof(CSSStyleRule, mDecls));
}
const CSSStyleRule* CSSStyleRuleDeclaration::Rule() const {
return reinterpret_cast<const CSSStyleRule*>(
reinterpret_cast<const uint8_t*>(this) - offsetof(CSSStyleRule, mDecls));
}
} // namespace dom
} // namespace mozilla
#endif // mozilla_CSSStyleRule_h
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