author Sylvestre Ledru <>
Fri, 30 Nov 2018 11:46:48 +0100
changeset 508163 6f3709b3878117466168c40affa7bca0b60cf75b
parent 482335 8fb94a730b6c42d4dd0c9c76a2b2d697bb4b6025
child 512431 f0a91d36587266d7454a450c6044d573664fbed5
permissions -rw-r--r--
Bug 1511181 - Reformat everything to the Google coding style r=ehsan a=clang-format # ignore-this-changeset

/* -*- 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 */

#ifndef mozilla_CSSStyleRule_h
#define mozilla_CSSStyleRule_h

#include "mozilla/BindingStyleRule.h"
#include "mozilla/ServoBindingTypes.h"
#include "mozilla/WeakPtr.h"

#include "nsDOMCSSDeclaration.h"

namespace mozilla {

class DeclarationBlock;

namespace dom {
class DocGroup;
class CSSStyleRule;

class CSSStyleRuleDeclaration final : public nsDOMCSSDeclaration {

  css::Rule* GetParentRule() final;
  nsINode* GetParentObject() final;

  mozilla::DeclarationBlock* GetOrCreateCSSDeclaration(
      Operation aOperation, mozilla::DeclarationBlock** aCreated) final;
  nsresult SetCSSDeclaration(DeclarationBlock* aDecl,
                             MutationClosureData* aClosureData) final;
  nsIDocument* DocToUpdate() final;
  ParsingEnvironment GetParsingEnvironment(
      nsIPrincipal* aSubjectPrincipal) const final;

  // For accessing the constructor.
  friend class CSSStyleRule;

  explicit CSSStyleRuleDeclaration(
      already_AddRefed<RawServoDeclarationBlock> aDecls);

  inline CSSStyleRule* Rule();
  inline const CSSStyleRule* Rule() const;

  RefPtr<DeclarationBlock> mDecls;

class CSSStyleRule final : public BindingStyleRule,
                           public SupportsWeakPtr<CSSStyleRule> {
  CSSStyleRule(already_AddRefed<RawServoStyleRule> aRawRule, StyleSheet* aSheet,
               css::Rule* aParentRule, uint32_t aLine, uint32_t aColumn);

  bool IsCCLeaf() const final MOZ_MUST_OVERRIDE;


  uint32_t GetSelectorCount() override;
  nsresult GetSelectorText(uint32_t aSelectorIndex, nsAString& aText) override;
  nsresult GetSpecificity(uint32_t aSelectorIndex,
                          uint64_t* aSpecificity) override;
  nsresult SelectorMatchesElement(dom::Element* aElement,
                                  uint32_t aSelectorIndex,
                                  const nsAString& aPseudo,
                                  bool* aMatches) override;
  NotNull<DeclarationBlock*> GetDeclarationBlock() const override;

  // WebIDL interface
  uint16_t Type() const final { return dom::CSSRule_Binding::STYLE_RULE; }
  void GetCssText(nsAString& aCssText) const final;
  void GetSelectorText(nsAString& aSelectorText) final;
  void SetSelectorText(const nsAString& aSelectorText) final;
  nsICSSDeclaration* Style() final;

  RawServoStyleRule* Raw() const { return mRawRule; }

  // 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;

  ~CSSStyleRule() {}

  // For computing the offset of mDecls.
  friend class CSSStyleRuleDeclaration;

  RefPtr<RawServoStyleRule> 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