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ad01a10a3b
Note that this patch only transforms the use of the nsDataHashtable type alias to a directly equivalent use of nsTHashMap. It does not change the specification of the hash key type to make use of the key class deduction that nsTHashMap allows for in some cases. That can be done in a separate step, but requires more attention. Differential Revision: https://phabricator.services.mozilla.com/D106008
66 lines
1.8 KiB
C++
66 lines
1.8 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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#ifndef mozilla_ServoStyleRuleMap_h
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#define mozilla_ServoStyleRuleMap_h
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#include "mozilla/dom/CSSStyleRule.h"
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#include "mozilla/StyleSheet.h"
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#include "nsTHashMap.h"
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struct RawServoStyleRule;
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namespace mozilla {
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class ServoCSSRuleList;
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class ServoStyleSet;
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namespace css {
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class Rule;
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} // namespace css
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namespace dom {
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class ShadowRoot;
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}
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class ServoStyleRuleMap {
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public:
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ServoStyleRuleMap() = default;
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void EnsureTable(ServoStyleSet&);
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void EnsureTable(dom::ShadowRoot&);
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dom::CSSStyleRule* Lookup(const RawServoStyleRule* aRawRule) const {
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return mTable.Get(aRawRule);
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}
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void SheetAdded(StyleSheet&);
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void SheetRemoved(StyleSheet&);
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void RuleAdded(StyleSheet& aStyleSheet, css::Rule&);
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void RuleRemoved(StyleSheet& aStyleSheet, css::Rule&);
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size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const;
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~ServoStyleRuleMap() = default;
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private:
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// Since we would never have a document which contains no style rule,
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// we use IsEmpty as an indication whether we need to walk through
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// all stylesheets to fill the table.
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bool IsEmpty() const { return mTable.Count() == 0; }
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void FillTableFromRule(css::Rule&);
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void FillTableFromRuleList(ServoCSSRuleList&);
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void FillTableFromStyleSheet(StyleSheet&);
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typedef nsTHashMap<nsPtrHashKey<const RawServoStyleRule>,
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WeakPtr<dom::CSSStyleRule>>
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Hashtable;
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Hashtable mTable;
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};
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} // namespace mozilla
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#endif // mozilla_ServoStyleRuleMap_h
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