gecko-dev/layout/style/ServoStyleSheet.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/. */
#ifndef mozilla_ServoStyleSheet_h
#define mozilla_ServoStyleSheet_h
#include "mozilla/dom/SRIMetadata.h"
#include "mozilla/RefPtr.h"
#include "mozilla/ServoBindingTypes.h"
#include "mozilla/StyleSheet.h"
#include "mozilla/StyleSheetInfo.h"
#include "mozilla/URLExtraData.h"
#include "nsStringFwd.h"
namespace mozilla {
class ServoCSSRuleList;
namespace css {
class Loader;
}
// -------------------------------
// Servo Style Sheet Inner Data Container
//
struct ServoStyleSheetInner : public StyleSheetInfo
{
ServoStyleSheetInner(CORSMode aCORSMode,
ReferrerPolicy aReferrerPolicy,
const dom::SRIMetadata& aIntegrity);
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const;
RefPtr<const RawServoStyleSheet> mSheet;
// XXX StyleSheetInfo already has mSheetURI, mBaseURI, and mPrincipal.
// Can we somehow replace them with URLExtraData directly? The issue
// is currently URLExtraData is immutable, but URIs in StyleSheetInfo
// seems to be mutable, so we probably cannot set them altogether.
// Also, this is mostly a duplicate reference of the same url data
// inside RawServoStyleSheet. We may want to just use that instead.
RefPtr<URLExtraData> mURLData;
};
/**
* CSS style sheet object that is a wrapper for a Servo Stylesheet.
*/
class ServoStyleSheet : public StyleSheet
{
public:
ServoStyleSheet(css::SheetParsingMode aParsingMode,
CORSMode aCORSMode,
net::ReferrerPolicy aReferrerPolicy,
const dom::SRIMetadata& aIntegrity);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ServoStyleSheet, StyleSheet)
bool HasRules() const;
MOZ_MUST_USE nsresult ParseSheet(css::Loader* aLoader,
const nsAString& aInput,
nsIURI* aSheetURI,
nsIURI* aBaseURI,
nsIPrincipal* aSheetPrincipal,
uint32_t aLineNumber);
/**
* Called instead of ParseSheet to initialize the Servo stylesheet object
* for a failed load. Either ParseSheet or LoadFailed must be called before
* adding a ServoStyleSheet to a ServoStyleSet.
*/
void LoadFailed();
const RawServoStyleSheet* RawSheet() const {
return Inner()->mSheet;
}
void SetSheetForImport(const RawServoStyleSheet* aSheet) {
MOZ_ASSERT(!Inner()->mSheet);
Inner()->mSheet = aSheet;
}
URLExtraData* URLData() const { return Inner()->mURLData; }
// WebIDL CSSStyleSheet API
// Can't be inline because we can't include ImportRule here. And can't be
// called GetOwnerRule because that would be ambiguous with the ImportRule
// version.
css::Rule* GetDOMOwnerRule() const final;
void WillDirty() {}
void DidDirty() {}
bool IsModified() const final { return false; }
virtual already_AddRefed<StyleSheet> Clone(StyleSheet* aCloneParent,
css::ImportRule* aCloneOwnerRule,
nsIDocument* aCloneDocument,
nsINode* aCloneOwningNode) const final;
// nsICSSLoaderObserver interface
NS_IMETHOD StyleSheetLoaded(StyleSheet* aSheet, bool aWasAlternate,
nsresult aStatus) final;
protected:
virtual ~ServoStyleSheet();
ServoStyleSheetInner* Inner() const
{
return static_cast<ServoStyleSheetInner*>(mInner);
}
// Internal methods which do not have security check and completeness check.
dom::CSSRuleList* GetCssRulesInternal(ErrorResult& aRv);
uint32_t InsertRuleInternal(const nsAString& aRule,
uint32_t aIndex, ErrorResult& aRv);
void DeleteRuleInternal(uint32_t aIndex, ErrorResult& aRv);
nsresult InsertRuleIntoGroupInternal(const nsAString& aRule,
css::GroupRule* aGroup,
uint32_t aIndex);
void EnabledStateChangedInternal() {}
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
private:
ServoStyleSheet(const ServoStyleSheet& aCopy,
ServoStyleSheet* aParentToUse,
css::ImportRule* aOwnerRuleToUse,
nsIDocument* aDocumentToUse,
nsINode* aOwningNodeToUse);
void DropRuleList();
RefPtr<ServoCSSRuleList> mRuleList;
friend class StyleSheet;
};
} // namespace mozilla
#endif // mozilla_ServoStyleSheet_h