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-rw-r--r--layout/inspector/ServoStyleRuleMap.h66
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diff --git a/layout/inspector/ServoStyleRuleMap.h b/layout/inspector/ServoStyleRuleMap.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_ServoStyleRuleMap_h
+#define mozilla_ServoStyleRuleMap_h
+
+#include "mozilla/dom/CSSStyleRule.h"
+#include "mozilla/StyleSheet.h"
+
+#include "nsTHashMap.h"
+
+struct StyleLockedStyleRule;
+
+namespace mozilla {
+class ServoCSSRuleList;
+class ServoStyleSet;
+namespace css {
+class Rule;
+} // namespace css
+namespace dom {
+class ShadowRoot;
+}
+class ServoStyleRuleMap {
+ public:
+ ServoStyleRuleMap() = default;
+
+ void EnsureTable(ServoStyleSet&);
+ void EnsureTable(dom::ShadowRoot&);
+
+ dom::CSSStyleRule* Lookup(const StyleLockedStyleRule* aRawRule) const {
+ return mTable.Get(aRawRule);
+ }
+
+ void SheetAdded(StyleSheet&);
+ void SheetRemoved(StyleSheet&);
+ void SheetCloned(StyleSheet&);
+
+ void RuleAdded(StyleSheet& aStyleSheet, css::Rule&);
+ void RuleRemoved(StyleSheet& aStyleSheet, css::Rule&);
+
+ size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const;
+
+ ~ServoStyleRuleMap() = default;
+
+ private:
+ // Since we would never have a document which contains no style rule,
+ // we use IsEmpty as an indication whether we need to walk through
+ // all stylesheets to fill the table.
+ bool IsEmpty() const { return mTable.Count() == 0; }
+
+ void FillTableFromRule(css::Rule&);
+ void FillTableFromRuleList(ServoCSSRuleList&);
+ void FillTableFromStyleSheet(StyleSheet&);
+
+ typedef nsTHashMap<nsPtrHashKey<const StyleLockedStyleRule>,
+ WeakPtr<dom::CSSStyleRule>>
+ Hashtable;
+ Hashtable mTable;
+};
+
+} // namespace mozilla
+
+#endif // mozilla_ServoStyleRuleMap_h