Add m-esr52 at 52.6.0

1 files changed, 181 insertions, 0 deletions

diff --git a/layout/style/nsHTMLStyleSheet.h b/layout/style/nsHTMLStyleSheet.h
new file mode 100644
index 000000000..a522fc3b4
--- /dev/null
+++ b/layout/style/nsHTMLStyleSheet.h
@@ -0,0 +1,181 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * 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/. */
+
+/*
+ * style sheet and style rule processor representing data from presentational
+ * HTML attributes
+ */
+
+#ifndef nsHTMLStyleSheet_h_
+#define nsHTMLStyleSheet_h_
+
+#include "nsColor.h"
+#include "nsCOMPtr.h"
+#include "nsIStyleRule.h"
+#include "nsIStyleRuleProcessor.h"
+#include "PLDHashTable.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/MemoryReporting.h"
+#include "nsString.h"
+
+class nsIDocument;
+class nsMappedAttributes;
+
+class nsHTMLStyleSheet final : public nsIStyleRuleProcessor
+{
+public:
+  explicit nsHTMLStyleSheet(nsIDocument* aDocument);
+
+  void SetOwningDocument(nsIDocument* aDocument);
+
+  NS_DECL_ISUPPORTS
+
+  // nsIStyleRuleProcessor API
+  virtual void RulesMatching(ElementRuleProcessorData* aData) override;
+  virtual void RulesMatching(PseudoElementRuleProcessorData* aData) override;
+  virtual void RulesMatching(AnonBoxRuleProcessorData* aData) override;
+#ifdef MOZ_XUL
+  virtual void RulesMatching(XULTreeRuleProcessorData* aData) override;
+#endif
+  virtual nsRestyleHint HasStateDependentStyle(StateRuleProcessorData* aData) override;
+  virtual nsRestyleHint HasStateDependentStyle(PseudoElementStateRuleProcessorData* aData) override;
+  virtual bool HasDocumentStateDependentStyle(StateRuleProcessorData* aData) override;
+  virtual nsRestyleHint
+    HasAttributeDependentStyle(AttributeRuleProcessorData* aData,
+                               mozilla::RestyleHintData& aRestyleHintDataResult) override;
+  virtual bool MediumFeaturesChanged(nsPresContext* aPresContext) override;
+  virtual size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf)
+    const MOZ_MUST_OVERRIDE override;
+  virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf)
+    const MOZ_MUST_OVERRIDE override;
+  size_t DOMSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
+
+  void Reset();
+  nsresult SetLinkColor(nscolor aColor);
+  nsresult SetActiveLinkColor(nscolor aColor);
+  nsresult SetVisitedLinkColor(nscolor aColor);
+
+  // Mapped Attribute management methods
+  already_AddRefed<nsMappedAttributes>
+    UniqueMappedAttributes(nsMappedAttributes* aMapped);
+  void DropMappedAttributes(nsMappedAttributes* aMapped);
+
+  nsIStyleRule* LangRuleFor(const nsString& aLanguage);
+
+private: 
+  nsHTMLStyleSheet(const nsHTMLStyleSheet& aCopy) = delete;
+  nsHTMLStyleSheet& operator=(const nsHTMLStyleSheet& aCopy) = delete;
+
+  ~nsHTMLStyleSheet() {}
+
+  class HTMLColorRule;
+  friend class HTMLColorRule;
+  class HTMLColorRule final : public nsIStyleRule {
+  private:
+    ~HTMLColorRule() {}
+  public:
+    HTMLColorRule() {}
+
+    NS_DECL_ISUPPORTS
+
+    // nsIStyleRule interface
+    virtual void MapRuleInfoInto(nsRuleData* aRuleData) override;
+    virtual bool MightMapInheritedStyleData() override;
+    virtual bool GetDiscretelyAnimatedCSSValue(nsCSSPropertyID aProperty,
+                                               nsCSSValue* aValue) override;
+  #ifdef DEBUG
+    virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override;
+  #endif
+
+    nscolor             mColor;
+  };
+
+  // Implementation of SetLink/VisitedLink/ActiveLinkColor
+  nsresult ImplLinkColorSetter(RefPtr<HTMLColorRule>& aRule, nscolor aColor);
+
+  class GenericTableRule;
+  friend class GenericTableRule;
+  class GenericTableRule : public nsIStyleRule {
+  protected:
+    virtual ~GenericTableRule() {}
+  public:
+    GenericTableRule() {}
+
+    NS_DECL_ISUPPORTS
+
+    // nsIStyleRule interface
+    virtual void MapRuleInfoInto(nsRuleData* aRuleData) override = 0;
+    virtual bool MightMapInheritedStyleData() override = 0;
+    virtual bool GetDiscretelyAnimatedCSSValue(nsCSSPropertyID aProperty,
+                                               nsCSSValue* aValue) override = 0;
+  #ifdef DEBUG
+    virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override;
+  #endif
+  };
+
+  // this rule handles <th> inheritance
+  class TableTHRule;
+  friend class TableTHRule;
+  class TableTHRule final : public GenericTableRule {
+  public:
+    TableTHRule() {}
+
+    virtual void MapRuleInfoInto(nsRuleData* aRuleData) override;
+    virtual bool MightMapInheritedStyleData() override;
+    virtual bool GetDiscretelyAnimatedCSSValue(nsCSSPropertyID aProperty,
+                                               nsCSSValue* aValue) override;
+  };
+
+  // Rule to handle quirk table colors
+  class TableQuirkColorRule final : public GenericTableRule {
+  public:
+    TableQuirkColorRule() {}
+
+    virtual void MapRuleInfoInto(nsRuleData* aRuleData) override;
+    virtual bool MightMapInheritedStyleData() override;
+    virtual bool GetDiscretelyAnimatedCSSValue(nsCSSPropertyID aProperty,
+                                               nsCSSValue* aValue) override;
+  };
+
+public: // for mLangRuleTable structures only
+
+  // Rule to handle xml:lang attributes, of which we have exactly one
+  // per language string, maintained in mLangRuleTable.
+  // We also create one extra rule for the "x-math" language string, used on
+  // <math> elements.
+  class LangRule final : public nsIStyleRule {
+  private:
+    ~LangRule() {}
+  public:
+    explicit LangRule(const nsSubstring& aLang) : mLang(aLang) {}
+
+    NS_DECL_ISUPPORTS
+
+    // nsIStyleRule interface
+    virtual void MapRuleInfoInto(nsRuleData* aRuleData) override;
+    virtual bool MightMapInheritedStyleData() override;
+    virtual bool GetDiscretelyAnimatedCSSValue(nsCSSPropertyID aProperty,
+                                               nsCSSValue* aValue) override;
+  #ifdef DEBUG
+    virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override;
+  #endif
+
+    nsString mLang;
+  };
+
+private:
+  nsIDocument*            mDocument;
+  RefPtr<HTMLColorRule> mLinkRule;
+  RefPtr<HTMLColorRule> mVisitedRule;
+  RefPtr<HTMLColorRule> mActiveRule;
+  RefPtr<TableQuirkColorRule> mTableQuirkColorRule;
+  RefPtr<TableTHRule>   mTableTHRule;
+
+  PLDHashTable            mMappedAttrTable;
+  PLDHashTable            mLangRuleTable;
+};
+
+#endif /* !defined(nsHTMLStyleSheet_h_) */