Add m-esr52 at 52.6.0

1 files changed, 192 insertions, 0 deletions

diff --git a/layout/style/CounterStyleManager.h b/layout/style/CounterStyleManager.h
new file mode 100644
index 000000000..2f760f340
--- /dev/null
+++ b/layout/style/CounterStyleManager.h
@@ -0,0 +1,192 @@
+/* -*- 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_) */