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7bddcf9e5a
Instead, lazily schedule evaluation of them before styling, much like we were doing for SVG. A subtle tweak is that we only remain scheduled while in the document. This allows us to use the "in document" bit plus the "mapped attributes dirty" bit to know our scheduled status. It also prevents doing silly work for disconnected elements, and having to do hashmap lookups on adoption and node destruction. Differential Revision: https://phabricator.services.mozilla.com/D181549
87 lines
2.7 KiB
C++
87 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* style sheet and style rule processor representing data from presentational
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* HTML attributes
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*/
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#ifndef mozilla_AttributeStyles_h_
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#define mozilla_AttributeStyles_h_
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#include "nsColor.h"
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#include "nsCOMPtr.h"
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#include "nsAtom.h"
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#include "PLDHashTable.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/MemoryReporting.h"
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#include "nsTHashMap.h"
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#include "nsString.h"
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struct MiscContainer;
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namespace mozilla {
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struct StyleLockedDeclarationBlock;
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namespace dom {
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class Document;
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} // namespace dom
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class AttributeStyles final {
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public:
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explicit AttributeStyles(dom::Document* aDocument);
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void SetOwningDocument(dom::Document* aDocument);
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NS_INLINE_DECL_REFCOUNTING(AttributeStyles)
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size_t DOMSizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const;
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void Reset();
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nsresult SetLinkColor(nscolor aColor);
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nsresult SetActiveLinkColor(nscolor aColor);
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nsresult SetVisitedLinkColor(nscolor aColor);
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const StyleLockedDeclarationBlock* GetServoUnvisitedLinkDecl() const {
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return mServoUnvisitedLinkDecl;
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}
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const StyleLockedDeclarationBlock* GetServoVisitedLinkDecl() const {
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return mServoVisitedLinkDecl;
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}
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const StyleLockedDeclarationBlock* GetServoActiveLinkDecl() const {
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return mServoActiveLinkDecl;
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}
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void CacheStyleAttr(const nsAString& aSerialized, MiscContainer* aValue) {
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mCachedStyleAttrs.InsertOrUpdate(aSerialized, aValue);
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}
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void EvictStyleAttr(const nsAString& aSerialized, MiscContainer* aValue) {
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NS_ASSERTION(LookupStyleAttr(aSerialized) == aValue,
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"Cached value doesn't match?");
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mCachedStyleAttrs.Remove(aSerialized);
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}
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MiscContainer* LookupStyleAttr(const nsAString& aSerialized) {
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return mCachedStyleAttrs.Get(aSerialized);
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}
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AttributeStyles(const AttributeStyles& aCopy) = delete;
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AttributeStyles& operator=(const AttributeStyles& aCopy) = delete;
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private:
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~AttributeStyles();
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// Implementation of SetLink/VisitedLink/ActiveLinkColor
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nsresult ImplLinkColorSetter(RefPtr<StyleLockedDeclarationBlock>& aDecl,
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nscolor aColor);
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dom::Document* mDocument;
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RefPtr<StyleLockedDeclarationBlock> mServoUnvisitedLinkDecl;
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RefPtr<StyleLockedDeclarationBlock> mServoVisitedLinkDecl;
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RefPtr<StyleLockedDeclarationBlock> mServoActiveLinkDecl;
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nsTHashMap<nsStringHashKey, MiscContainer*> mCachedStyleAttrs;
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};
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} // namespace mozilla
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#endif
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