gecko-dev/layout/style/ServoPageRule.h

108 строки
2.7 KiB
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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 CSSPageRule for stylo */
#ifndef mozilla_ServoPageRule_h
#define mozilla_ServoPageRule_h
#include "mozilla/dom/CSSPageRule.h"
#include "mozilla/ServoBindingTypes.h"
#include "nsDOMCSSDeclaration.h"
namespace mozilla {
namespace dom {
class DocGroup;
} // namespace dom
class DeclarationBlock;
class ServoPageRule;
class ServoPageRuleDeclaration final : public nsDOMCSSDeclaration
{
public:
NS_DECL_ISUPPORTS_INHERITED
css::Rule* GetParentRule() final;
nsINode* GetParentObject() final;
protected:
DeclarationBlock* GetCSSDeclaration(Operation aOperation) final;
nsresult SetCSSDeclaration(DeclarationBlock* aDecl) final;
nsIDocument* DocToUpdate() final;
nsDOMCSSDeclaration::ParsingEnvironment
GetParsingEnvironment(nsIPrincipal* aSubjectPrincipal) const final;
private:
// For accessing the constructor.
friend class ServoPageRule;
explicit ServoPageRuleDeclaration(
already_AddRefed<RawServoDeclarationBlock> aDecls);
~ServoPageRuleDeclaration();
inline ServoPageRule* Rule();
inline const ServoPageRule* Rule() const;
RefPtr<DeclarationBlock> mDecls;
};
class ServoPageRule final : public dom::CSSPageRule
{
public:
ServoPageRule(RefPtr<RawServoPageRule> aRawRule,
uint32_t aLine, uint32_t aColumn);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(
ServoPageRule, dom::CSSPageRule
)
bool IsCCLeaf() const final;
RawServoPageRule* Raw() const { return mRawRule; }
// WebIDL interface
void GetCssText(nsAString& aCssText) const final;
nsICSSDeclaration* Style() final;
// Methods of mozilla::css::Rule
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf)
const final;
#ifdef DEBUG
void List(FILE* out = stdout, int32_t aIndent = 0) const final;
#endif
private:
virtual ~ServoPageRule();
// For computing the offset of mDecls.
friend class ServoPageRuleDeclaration;
RefPtr<RawServoPageRule> mRawRule;
ServoPageRuleDeclaration mDecls;
};
ServoPageRule*
ServoPageRuleDeclaration::Rule()
{
return reinterpret_cast<ServoPageRule*>(
reinterpret_cast<uint8_t*>(this) - offsetof(ServoPageRule, mDecls));
}
const ServoPageRule*
ServoPageRuleDeclaration::Rule() const
{
return reinterpret_cast<const ServoPageRule*>(
reinterpret_cast<const uint8_t*>(this) - offsetof(ServoPageRule, mDecls));
}
} // namespace mozilla
#endif // mozilla_ServoPageRule_h