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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 */
* style sheet and style rule processor representing data from presentational
* HTML attributes
#ifndef mozilla_AttributeStyles_h_
#define mozilla_AttributeStyles_h_
#include "nsColor.h"
#include "nsCOMPtr.h"
#include "nsAtom.h"
#include "PLDHashTable.h"
#include "mozilla/Attributes.h"
#include "mozilla/MemoryReporting.h"
#include "nsTHashMap.h"
#include "nsString.h"
struct MiscContainer;
namespace mozilla {
struct StyleLockedDeclarationBlock;
namespace dom {
class Document;
} // namespace dom
class AttributeStyles final {
explicit AttributeStyles(dom::Document* aDocument);
void SetOwningDocument(dom::Document* aDocument);
size_t DOMSizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const;
void Reset();
nsresult SetLinkColor(nscolor aColor);
nsresult SetActiveLinkColor(nscolor aColor);
nsresult SetVisitedLinkColor(nscolor aColor);
const StyleLockedDeclarationBlock* GetServoUnvisitedLinkDecl() const {
return mServoUnvisitedLinkDecl;
const StyleLockedDeclarationBlock* GetServoVisitedLinkDecl() const {
return mServoVisitedLinkDecl;
const StyleLockedDeclarationBlock* GetServoActiveLinkDecl() const {
return mServoActiveLinkDecl;
void CacheStyleAttr(const nsAString& aSerialized, MiscContainer* aValue) {
mCachedStyleAttrs.InsertOrUpdate(aSerialized, aValue);
void EvictStyleAttr(const nsAString& aSerialized, MiscContainer* aValue) {
NS_ASSERTION(LookupStyleAttr(aSerialized) == aValue,
"Cached value doesn't match?");
MiscContainer* LookupStyleAttr(const nsAString& aSerialized) {
return mCachedStyleAttrs.Get(aSerialized);
AttributeStyles(const AttributeStyles& aCopy) = delete;
AttributeStyles& operator=(const AttributeStyles& aCopy) = delete;
// Implementation of SetLink/VisitedLink/ActiveLinkColor
nsresult ImplLinkColorSetter(RefPtr<StyleLockedDeclarationBlock>& aDecl,
nscolor aColor);
dom::Document* mDocument;
RefPtr<StyleLockedDeclarationBlock> mServoUnvisitedLinkDecl;
RefPtr<StyleLockedDeclarationBlock> mServoVisitedLinkDecl;
RefPtr<StyleLockedDeclarationBlock> mServoActiveLinkDecl;
nsTHashMap<nsStringHashKey, MiscContainer*> mCachedStyleAttrs;
} // namespace mozilla