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diff --git a/layout/style/CounterStyleManager.h b/layout/style/CounterStyleManager.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_CounterStyleManager_h_
+#define mozilla_CounterStyleManager_h_
+
+#include "nsStringFwd.h"
+#include "nsRefPtrHashtable.h"
+#include "nsHashKeys.h"
+
+#include "nsStyleConsts.h"
+
+#include "mozilla/Attributes.h"
+
+#include "nsCSSValue.h"
+
+class nsPresContext;
+
+namespace mozilla {
+
+class WritingMode;
+
+typedef int32_t CounterValue;
+
+class CounterStyleManager;
+class AnonymousCounterStyle;
+
+struct NegativeType;
+struct PadType;
+
+class CounterStyle
+{
+protected:
+ explicit constexpr CounterStyle(int32_t aStyle)
+ : mStyle(aStyle)
+ {
+ }
+
+private:
+ CounterStyle(const CounterStyle& aOther) = delete;
+ void operator=(const CounterStyle& other) = delete;
+
+public:
+ int32_t GetStyle() const { return mStyle; }
+ bool IsNone() const { return mStyle == NS_STYLE_LIST_STYLE_NONE; }
+ bool IsCustomStyle() const { return mStyle == NS_STYLE_LIST_STYLE_CUSTOM; }
+ // A style is dependent if it depends on the counter style manager.
+ // Custom styles are certainly dependent. In addition, some builtin
+ // styles are dependent for fallback.
+ bool IsDependentStyle() const;
+
+ virtual void GetStyleName(nsSubstring& aResult) = 0;
+ virtual void GetPrefix(nsSubstring& aResult) = 0;
+ virtual void GetSuffix(nsSubstring& aResult) = 0;
+ void GetCounterText(CounterValue aOrdinal,
+ WritingMode aWritingMode,
+ nsSubstring& aResult,
+ bool& aIsRTL);
+ virtual void GetSpokenCounterText(CounterValue aOrdinal,
+ WritingMode aWritingMode,
+ nsSubstring& aResult,
+ bool& aIsBullet);
+
+ // XXX This method could be removed once ::-moz-list-bullet and
+ // ::-moz-list-number are completely merged into ::marker.
+ virtual bool IsBullet() = 0;
+
+ virtual void GetNegative(NegativeType& aResult) = 0;
+ /**
+ * This method returns whether an ordinal is in the range of this
+ * counter style. Note that, it is possible that an ordinal in range
+ * is rejected by the generating algorithm.
+ */
+ virtual bool IsOrdinalInRange(CounterValue aOrdinal) = 0;
+ /**
+ * This method returns whether an ordinal is in the default range of
+ * this counter style. This is the effective range when no 'range'
+ * descriptor is specified.
+ */
+ virtual bool IsOrdinalInAutoRange(CounterValue aOrdinal) = 0;
+ virtual void GetPad(PadType& aResult) = 0;
+ virtual CounterStyle* GetFallback() = 0;
+ virtual uint8_t GetSpeakAs() = 0;
+ virtual bool UseNegativeSign() = 0;
+
+ virtual void CallFallbackStyle(CounterValue aOrdinal,
+ WritingMode aWritingMode,
+ nsSubstring& aResult,
+ bool& aIsRTL);
+ virtual bool GetInitialCounterText(CounterValue aOrdinal,
+ WritingMode aWritingMode,
+ nsSubstring& aResult,
+ bool& aIsRTL) = 0;
+
+ virtual AnonymousCounterStyle* AsAnonymous() { return nullptr; }
+
+ NS_IMETHOD_(MozExternalRefCountType) AddRef() = 0;
+ NS_IMETHOD_(MozExternalRefCountType) Release() = 0;
+
+protected:
+ int32_t mStyle;
+};
+
+class AnonymousCounterStyle final : public CounterStyle
+{
+public:
+ explicit AnonymousCounterStyle(const nsSubstring& aContent);
+ explicit AnonymousCounterStyle(const nsCSSValue::Array* aValue);
+
+ virtual void GetStyleName(nsAString& aResult) override;
+ virtual void GetPrefix(nsAString& aResult) override;
+ virtual void GetSuffix(nsAString& aResult) override;
+ virtual bool IsBullet() override;
+
+ virtual void GetNegative(NegativeType& aResult) override;
+ virtual bool IsOrdinalInRange(CounterValue aOrdinal) override;
+ virtual bool IsOrdinalInAutoRange(CounterValue aOrdinal) override;
+ virtual void GetPad(PadType& aResult) override;
+ virtual CounterStyle* GetFallback() override;
+ virtual uint8_t GetSpeakAs() override;
+ virtual bool UseNegativeSign() override;
+
+ virtual bool GetInitialCounterText(CounterValue aOrdinal,
+ WritingMode aWritingMode,
+ nsSubstring& aResult,
+ bool& aIsRTL) override;
+
+ virtual AnonymousCounterStyle* AsAnonymous() override { return this; }
+
+ bool IsSingleString() const { return mSingleString; }
+ uint8_t GetSystem() const { return mSystem; }
+ const nsTArray<nsString>& GetSymbols() const { return mSymbols; }
+
+ NS_INLINE_DECL_REFCOUNTING(AnonymousCounterStyle, override)
+
+private:
+ ~AnonymousCounterStyle() {}
+
+ bool mSingleString;
+ uint8_t mSystem;
+ nsTArray<nsString> mSymbols;
+};
+
+class CounterStyleManager final
+{
+private:
+ ~CounterStyleManager();
+public:
+ explicit CounterStyleManager(nsPresContext* aPresContext);
+
+ static void InitializeBuiltinCounterStyles();
+
+ void Disconnect();
+
+ bool IsInitial() const
+ {
+ // only 'none' and 'decimal'
+ return mCacheTable.Count() == 2;
+ }
+
+ CounterStyle* BuildCounterStyle(const nsSubstring& aName);
+
+ static CounterStyle* GetBuiltinStyle(int32_t aStyle);
+ static CounterStyle* GetNoneStyle()
+ {
+ return GetBuiltinStyle(NS_STYLE_LIST_STYLE_NONE);
+ }
+ static CounterStyle* GetDecimalStyle()
+ {
+ return GetBuiltinStyle(NS_STYLE_LIST_STYLE_DECIMAL);
+ }
+
+ // This method will scan all existing counter styles generated by this
+ // manager, and remove or mark data dirty accordingly. It returns true
+ // if any counter style is changed, false elsewise. This method should
+ // be called when any counter style may be affected.
+ bool NotifyRuleChanged();
+
+ nsPresContext* PresContext() const { return mPresContext; }
+
+ NS_INLINE_DECL_REFCOUNTING(CounterStyleManager)
+
+private:
+ nsPresContext* mPresContext;
+ nsRefPtrHashtable<nsStringHashKey, CounterStyle> mCacheTable;
+};
+
+} // namespace mozilla
+
+#endif /* !defined(mozilla_CounterStyleManager_h_) */