gecko-dev/layout/style/ServoStyleRule.h

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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/. */
/* representation of CSSStyleRule for stylo */
#ifndef mozilla_ServoStyleRule_h
#define mozilla_ServoStyleRule_h
#include "mozilla/BindingStyleRule.h"
#include "mozilla/ServoBindingTypes.h"
#include "nsIDOMCSSStyleRule.h"
#include "nsDOMCSSDeclaration.h"
namespace mozilla {
class ServoDeclarationBlock;
class ServoStyleRule;
class ServoStyleRuleDeclaration final : public nsDOMCSSDeclaration
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_IMETHOD GetParentRule(nsIDOMCSSRule** aParent) final;
nsINode* GetParentObject() final;
protected:
DeclarationBlock* GetCSSDeclaration(Operation aOperation) final;
nsresult SetCSSDeclaration(DeclarationBlock* aDecl) final;
nsIDocument* DocToUpdate() final;
void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv) final;
URLExtraData* GetURLData() const final;
private:
// For accessing the constructor.
friend class ServoStyleRule;
explicit ServoStyleRuleDeclaration(
already_AddRefed<RawServoDeclarationBlock> aDecls);
~ServoStyleRuleDeclaration();
inline ServoStyleRule* Rule();
inline const ServoStyleRule* Rule() const;
RefPtr<ServoDeclarationBlock> mDecls;
};
class ServoStyleRule final : public BindingStyleRule
, public nsIDOMCSSStyleRule
{
public:
explicit ServoStyleRule(already_AddRefed<RawServoStyleRule> aRawRule);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(ServoStyleRule,
css::Rule)
virtual bool IsCCLeaf() const final MOZ_MUST_OVERRIDE;
NS_DECL_NSIDOMCSSSTYLERULE
// WebIDL interface
uint16_t Type() const final;
void GetCssTextImpl(nsAString& aCssText) const final;
virtual nsICSSDeclaration* Style() final;
RawServoStyleRule* Raw() const { return mRawRule; }
// Methods of mozilla::css::Rule
int32_t GetType() const final { return css::Rule::STYLE_RULE; }
using Rule::GetType;
already_AddRefed<Rule> Clone() const final;
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const final;
#ifdef DEBUG
void List(FILE* out = stdout, int32_t aIndent = 0) const final;
#endif
private:
~ServoStyleRule() {}
// For computing the offset of mDecls.
friend class ServoStyleRuleDeclaration;
RefPtr<RawServoStyleRule> mRawRule;
ServoStyleRuleDeclaration mDecls;
};
ServoStyleRule*
ServoStyleRuleDeclaration::Rule()
{
return reinterpret_cast<ServoStyleRule*>(
reinterpret_cast<uint8_t*>(this) - offsetof(ServoStyleRule, mDecls));
}
const ServoStyleRule*
ServoStyleRuleDeclaration::Rule() const
{
return reinterpret_cast<const ServoStyleRule*>(
reinterpret_cast<const uint8_t*>(this) - offsetof(ServoStyleRule, mDecls));
}
} // namespace mozilla
#endif // mozilla_ServoStyleRule_h