23e91e805a
More improvements to come. In particular, this still iterates through Shadow DOM in each_xbl_cascade_data, but that should be changed later. That allows to cleanup a bunch of stuff and finally fix Shadow DOM cascade order. We still rely on the binding parent to be setup properly in the shadow tree, but that requirement can go away later (we can walk the containing shadow chain instead). This mostly focuses on removing the XBL binding from the Shadow host. It'd be nice to do EnumerateShadowRoots faster. I think that should also be a followup, if needed. MozReview-Commit-ID: Jf2iGvLC5de
68 lines
1.8 KiB
C++
68 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/ServoStyleRule.h"
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#include "nsDataHashtable.h"
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struct RawServoStyleRule;
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class nsXBLPrototypeResources;
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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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{
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public:
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ServoStyleRuleMap() = default;
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void EnsureTable(ServoStyleSet&);
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void EnsureTable(nsXBLPrototypeResources&);
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void EnsureTable(dom::ShadowRoot&);
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ServoStyleRule* Lookup(const RawServoStyleRule* aRawRule) const
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{
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return mTable.Get(aRawRule);
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}
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void SheetAdded(ServoStyleSheet&);
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void SheetRemoved(ServoStyleSheet&);
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void RuleAdded(ServoStyleSheet& aStyleSheet, css::Rule&);
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void RuleRemoved(ServoStyleSheet& 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& aRule);
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void FillTableFromRuleList(ServoCSSRuleList& aRuleList);
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void FillTableFromStyleSheet(ServoStyleSheet& aSheet);
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typedef nsDataHashtable<nsPtrHashKey<const RawServoStyleRule>,
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WeakPtr<ServoStyleRule>> 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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