The Tor Browser: layout/style/nsCSSRules.h@925c144e1f1f (annotated)

layout/style/nsCSSRules.h@925c144e1f1f (annotated)

layout/style/nsCSSRules.h

Fri, 16 Jan 2015 18:13:44 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Fri, 16 Jan 2015 18:13:44 +0100
branch: TOR_BUG_9701
changeset 14: 925c144e1f1f
permissions: -rw-r--r--

Integrate suggestion from review to improve consistency with existing code.

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 // vim:cindent:ts=2:et:sw=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/. */
 /* rules in a CSS stylesheet other than style rules (e.g., @import rules) */
 #ifndef nsCSSRules_h_
 #define nsCSSRules_h_
 #include "mozilla/Attributes.h"
 #include "mozilla/MemoryReporting.h"
 #include "mozilla/css/GroupRule.h"
 #include "mozilla/Preferences.h"
 #include "nsIDOMCSSConditionRule.h"
 #include "nsIDOMCSSFontFaceRule.h"
 #include "nsIDOMCSSFontFeatureValuesRule.h"
 #include "nsIDOMCSSGroupingRule.h"
 #include "nsIDOMCSSMediaRule.h"
 #include "nsIDOMCSSMozDocumentRule.h"
 #include "nsIDOMCSSSupportsRule.h"
 #include "nsIDOMMozCSSKeyframeRule.h"
 #include "nsIDOMMozCSSKeyframesRule.h"
 #include "nsAutoPtr.h"
 #include "nsCSSProperty.h"
 #include "nsCSSValue.h"
 #include "nsIDOMCSSCharsetRule.h"
 #include "nsTArray.h"
 #include "nsDOMCSSDeclaration.h"
 #include "Declaration.h"
 #include "nsIDOMCSSPageRule.h"
 #include "StyleRule.h"
 #include "gfxFontFeatures.h"
 class nsMediaList;
 namespace mozilla {
 class ErrorResult;
 namespace css {
 class MediaRule MOZ_FINAL : public GroupRule,
                             public nsIDOMCSSMediaRule
 {
 public:
   MediaRule();
 private:
   MediaRule(const MediaRule& aCopy);
   ~MediaRule();
 public:
   NS_DECL_ISUPPORTS_INHERITED
   // nsIStyleRule methods
 #ifdef DEBUG
   virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
 #endif
   // Rule methods
   virtual void SetStyleSheet(nsCSSStyleSheet* aSheet); //override GroupRule
   virtual int32_t GetType() const;
   virtual already_AddRefed<Rule> Clone() const;
   virtual nsIDOMCSSRule* GetDOMRule()
   {
     return this;
   }
   virtual nsIDOMCSSRule* GetExistingDOMRule()
   {
     return this;
   }
   // nsIDOMCSSRule interface
   NS_DECL_NSIDOMCSSRULE
   // nsIDOMCSSGroupingRule interface
   NS_DECL_NSIDOMCSSGROUPINGRULE
   // nsIDOMCSSConditionRule interface
   NS_DECL_NSIDOMCSSCONDITIONRULE
   // nsIDOMCSSMediaRule interface
   NS_DECL_NSIDOMCSSMEDIARULE
   // rest of GroupRule
   virtual bool UseForPresentation(nsPresContext* aPresContext,
                                     nsMediaQueryResultCacheKey& aKey);
   // @media rule methods
   nsresult SetMedia(nsMediaList* aMedia);
   virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf)
     const MOZ_MUST_OVERRIDE;
 protected:
   void AppendConditionText(nsAString& aOutput);
   nsRefPtr<nsMediaList> mMedia;
 };
 class DocumentRule MOZ_FINAL : public GroupRule,
                                public nsIDOMCSSMozDocumentRule
 {
 public:
   DocumentRule();
 private:
   DocumentRule(const DocumentRule& aCopy);
   ~DocumentRule();
 public:
   NS_DECL_ISUPPORTS_INHERITED
   // nsIStyleRule methods
 #ifdef DEBUG
   virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
 #endif
   // Rule methods
   virtual int32_t GetType() const;
   virtual already_AddRefed<Rule> Clone() const;
   virtual nsIDOMCSSRule* GetDOMRule()
   {
     return this;
   }
   virtual nsIDOMCSSRule* GetExistingDOMRule()
   {
     return this;
   }
   // nsIDOMCSSRule interface
   NS_DECL_NSIDOMCSSRULE
   // nsIDOMCSSGroupingRule interface
   NS_DECL_NSIDOMCSSGROUPINGRULE
   // nsIDOMCSSConditionRule interface
   NS_DECL_NSIDOMCSSCONDITIONRULE
   // nsIDOMCSSMozDocumentRule interface
   NS_DECL_NSIDOMCSSMOZDOCUMENTRULE
   // rest of GroupRule
   virtual bool UseForPresentation(nsPresContext* aPresContext,
                                     nsMediaQueryResultCacheKey& aKey);
   enum Function {
     eURL,
     eURLPrefix,
     eDomain,
     eRegExp
   };
   struct URL {
     Function func;
     nsCString url;
     URL *next;
     URL() : next(nullptr) {}
     URL(const URL& aOther)
       : func(aOther.func)
       , url(aOther.url)
       , next(aOther.next ? new URL(*aOther.next) : nullptr)
     {
     }
     ~URL();
   };
   void SetURLs(URL *aURLs) { mURLs = aURLs; }
   virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf)
     const MOZ_MUST_OVERRIDE;
 protected:
   void AppendConditionText(nsAString& aOutput);
   nsAutoPtr<URL> mURLs; // linked list of |struct URL| above.
 };
 } // namespace css
 } // namespace mozilla
 // A nsCSSFontFaceStyleDecl is always embedded in a nsCSSFontFaceRule.
 class nsCSSFontFaceRule;
 class nsCSSFontFaceStyleDecl : public nsICSSDeclaration
 {
 public:
   NS_DECL_ISUPPORTS_INHERITED
   NS_DECL_NSIDOMCSSSTYLEDECLARATION_HELPER
   NS_DECL_NSICSSDECLARATION
   virtual already_AddRefed<mozilla::dom::CSSValue>
   GetPropertyCSSValue(const nsAString& aProp, mozilla::ErrorResult& aRv)
     MOZ_OVERRIDE;
   using nsICSSDeclaration::GetPropertyCSSValue;
   nsCSSFontFaceStyleDecl()
   {
     SetIsDOMBinding();
   }
   virtual nsINode *GetParentObject() MOZ_OVERRIDE;
   virtual void IndexedGetter(uint32_t aIndex, bool& aFound, nsAString& aPropName) MOZ_OVERRIDE;
   nsresult GetPropertyValue(nsCSSFontDesc aFontDescID,
                             nsAString & aResult) const;
   virtual JSObject* WrapObject(JSContext *cx) MOZ_OVERRIDE;
 protected:
   friend class nsCSSFontFaceRule;
 #define CSS_FONT_DESC(name_, method_) nsCSSValue m##method_;
 #include "nsCSSFontDescList.h"
 #undef CSS_FONT_DESC
   static nsCSSValue nsCSSFontFaceStyleDecl::* const Fields[];
   inline nsCSSFontFaceRule* ContainingRule();
   inline const nsCSSFontFaceRule* ContainingRule() const;
 private:
   // NOT TO BE IMPLEMENTED
   // This object cannot be allocated on its own, only as part of
   // nsCSSFontFaceRule.
   void* operator new(size_t size) CPP_THROW_NEW;
 };
 class nsCSSFontFaceRule MOZ_FINAL : public mozilla::css::Rule,
                                     public nsIDOMCSSFontFaceRule
 {
 public:
   nsCSSFontFaceRule() {}
   nsCSSFontFaceRule(const nsCSSFontFaceRule& aCopy)
     // copy everything except our reference count
     : mozilla::css::Rule(aCopy), mDecl(aCopy.mDecl) {}
   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsCSSFontFaceRule,
                                                          mozilla::css::Rule)
   // nsIStyleRule methods
 #ifdef DEBUG
   virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
 #endif
   // Rule methods
   DECL_STYLE_RULE_INHERIT
   virtual int32_t GetType() const MOZ_OVERRIDE;
   virtual already_AddRefed<mozilla::css::Rule> Clone() const;
   // nsIDOMCSSRule interface
   NS_DECL_NSIDOMCSSRULE
   // nsIDOMCSSFontFaceRule interface
   NS_DECL_NSIDOMCSSFONTFACERULE
   void SetDesc(nsCSSFontDesc aDescID, nsCSSValue const & aValue);
   void GetDesc(nsCSSFontDesc aDescID, nsCSSValue & aValue);
   virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
 protected:
   friend class nsCSSFontFaceStyleDecl;
   nsCSSFontFaceStyleDecl mDecl;
 };
 // nsFontFaceRuleContainer - used for associating sheet type with
 // specific @font-face rules
 struct nsFontFaceRuleContainer {
   nsRefPtr<nsCSSFontFaceRule> mRule;
   uint8_t mSheetType;
 };
 inline nsCSSFontFaceRule*
 nsCSSFontFaceStyleDecl::ContainingRule()
 {
   return reinterpret_cast<nsCSSFontFaceRule*>
     (reinterpret_cast<char*>(this) - offsetof(nsCSSFontFaceRule, mDecl));
 }
 inline const nsCSSFontFaceRule*
 nsCSSFontFaceStyleDecl::ContainingRule() const
 {
   return reinterpret_cast<const nsCSSFontFaceRule*>
     (reinterpret_cast<const char*>(this) - offsetof(nsCSSFontFaceRule, mDecl));
 }
 class nsCSSFontFeatureValuesRule MOZ_FINAL :
                                        public mozilla::css::Rule,
                                        public nsIDOMCSSFontFeatureValuesRule
 {
 public:
   nsCSSFontFeatureValuesRule() {}
   nsCSSFontFeatureValuesRule(const nsCSSFontFeatureValuesRule& aCopy)
     // copy everything except our reference count
     : mozilla::css::Rule(aCopy),
       mFamilyList(aCopy.mFamilyList),
       mFeatureValues(aCopy.mFeatureValues) {}
   NS_DECL_ISUPPORTS
   // nsIStyleRule methods
 #ifdef DEBUG
   virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
 #endif
   // Rule methods
   DECL_STYLE_RULE_INHERIT
   virtual int32_t GetType() const MOZ_OVERRIDE;
   virtual already_AddRefed<mozilla::css::Rule> Clone() const MOZ_OVERRIDE;
   // nsIDOMCSSRule interface
   NS_DECL_NSIDOMCSSRULE
   // nsIDOMCSSFontFaceRule interface
   NS_DECL_NSIDOMCSSFONTFEATUREVALUESRULE
   const nsTArray<nsString>& GetFamilyList() { return mFamilyList; }
   void SetFamilyList(const nsAString& aFamilyList, bool& aContainsGeneric);
   void AddValueList(int32_t aVariantAlternate,
                     nsTArray<gfxFontFeatureValueSet::ValueList>& aValueList);
   const nsTArray<gfxFontFeatureValueSet::FeatureValues>& GetFeatureValues()
   {
     return mFeatureValues;
   }
   virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
   static bool PrefEnabled()
   {
     // font-variant-alternates enabled ==> layout.css.font-features.enabled is true
     bool fontFeaturesEnabled =
       nsCSSProps::IsEnabled(eCSSProperty_font_variant_alternates);
     return fontFeaturesEnabled;
   }
 protected:
   nsTArray<nsString> mFamilyList;
   nsTArray<gfxFontFeatureValueSet::FeatureValues> mFeatureValues;
 };
 namespace mozilla {
 namespace css {
 class CharsetRule MOZ_FINAL : public Rule,
                               public nsIDOMCSSCharsetRule
 {
 public:
   CharsetRule(const nsAString& aEncoding);
 private:
   // For |Clone|
   CharsetRule(const CharsetRule& aCopy);
   ~CharsetRule() {}
 public:
   NS_DECL_ISUPPORTS
   DECL_STYLE_RULE_INHERIT
   // nsIStyleRule methods
 #ifdef DEBUG
   virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
 #endif
   // Rule methods
   virtual int32_t GetType() const;
   virtual already_AddRefed<Rule> Clone() const;
   // nsIDOMCSSRule interface
   NS_DECL_NSIDOMCSSRULE
   // nsIDOMCSSCharsetRule methods
   NS_IMETHOD GetEncoding(nsAString& aEncoding) MOZ_OVERRIDE;
   NS_IMETHOD SetEncoding(const nsAString& aEncoding) MOZ_OVERRIDE;
   virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
 private:
   nsString  mEncoding;
 };
 } // namespace css
 } // namespace mozilla
 class nsCSSKeyframeRule;
 class nsCSSKeyframeStyleDeclaration MOZ_FINAL : public nsDOMCSSDeclaration
 {
 public:
   nsCSSKeyframeStyleDeclaration(nsCSSKeyframeRule *aRule);
   virtual ~nsCSSKeyframeStyleDeclaration();
   NS_IMETHOD GetParentRule(nsIDOMCSSRule **aParent) MOZ_OVERRIDE;
   void DropReference() { mRule = nullptr; }
   virtual mozilla::css::Declaration* GetCSSDeclaration(bool aAllocate) MOZ_OVERRIDE;
   virtual nsresult SetCSSDeclaration(mozilla::css::Declaration* aDecl) MOZ_OVERRIDE;
   virtual void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv) MOZ_OVERRIDE;
   virtual nsIDocument* DocToUpdate() MOZ_OVERRIDE;
   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsCSSKeyframeStyleDeclaration,
                                                          nsICSSDeclaration)
   virtual nsINode* GetParentObject() MOZ_OVERRIDE;
 protected:
   // This reference is not reference-counted. The rule object tells us
   // when it's about to go away.
   nsCSSKeyframeRule *mRule;
 };
 class nsCSSKeyframeRule MOZ_FINAL : public mozilla::css::Rule,
                                     public nsIDOMMozCSSKeyframeRule
 {
 public:
   // WARNING: Steals the contents of aKeys *and* aDeclaration
   nsCSSKeyframeRule(InfallibleTArray<float>& aKeys,
                     nsAutoPtr<mozilla::css::Declaration> aDeclaration)
     : mDeclaration(aDeclaration)
   {
     mKeys.SwapElements(aKeys);
   }
 private:
   nsCSSKeyframeRule(const nsCSSKeyframeRule& aCopy);
   ~nsCSSKeyframeRule();
 public:
   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
   NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsCSSKeyframeRule, nsIStyleRule)
   // nsIStyleRule methods
 #ifdef DEBUG
   virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
 #endif
   // Rule methods
   DECL_STYLE_RULE_INHERIT
   virtual int32_t GetType() const MOZ_OVERRIDE;
   virtual already_AddRefed<mozilla::css::Rule> Clone() const;
   // nsIDOMCSSRule interface
   NS_DECL_NSIDOMCSSRULE
   // nsIDOMMozCSSKeyframeRule interface
   NS_DECL_NSIDOMMOZCSSKEYFRAMERULE
   const nsTArray<float>& GetKeys() const     { return mKeys; }
   mozilla::css::Declaration* Declaration()   { return mDeclaration; }
   void ChangeDeclaration(mozilla::css::Declaration* aDeclaration);
   virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
   void DoGetKeyText(nsAString &aKeyText) const;
 private:
   nsTArray<float>                            mKeys;
   nsAutoPtr<mozilla::css::Declaration>       mDeclaration;
   // lazily created when needed:
   nsRefPtr<nsCSSKeyframeStyleDeclaration>    mDOMDeclaration;
 };
 class nsCSSKeyframesRule MOZ_FINAL : public mozilla::css::GroupRule,
                                      public nsIDOMMozCSSKeyframesRule
 {
 public:
   nsCSSKeyframesRule(const nsSubstring& aName)
     : mName(aName)
   {
   }
 private:
   nsCSSKeyframesRule(const nsCSSKeyframesRule& aCopy);
   ~nsCSSKeyframesRule();
 public:
   NS_DECL_ISUPPORTS_INHERITED
   // nsIStyleRule methods
 #ifdef DEBUG
   virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
 #endif
   // Rule methods
   virtual int32_t GetType() const;
   virtual already_AddRefed<mozilla::css::Rule> Clone() const;
   virtual nsIDOMCSSRule* GetDOMRule()
   {
     return this;
   }
   virtual nsIDOMCSSRule* GetExistingDOMRule()
   {
     return this;
   }
   // nsIDOMCSSRule interface
   NS_DECL_NSIDOMCSSRULE
   // nsIDOMMozCSSKeyframesRule interface
   NS_DECL_NSIDOMMOZCSSKEYFRAMESRULE
   // rest of GroupRule
   virtual bool UseForPresentation(nsPresContext* aPresContext,
                                     nsMediaQueryResultCacheKey& aKey) MOZ_OVERRIDE;
   const nsString& GetName() { return mName; }
   virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
 private:
   uint32_t FindRuleIndexForKey(const nsAString& aKey);
   nsString                                   mName;
 };
 class nsCSSPageRule;
 class nsCSSPageStyleDeclaration MOZ_FINAL : public nsDOMCSSDeclaration
 {
 public:
   nsCSSPageStyleDeclaration(nsCSSPageRule *aRule);
   virtual ~nsCSSPageStyleDeclaration();
   NS_IMETHOD GetParentRule(nsIDOMCSSRule **aParent) MOZ_OVERRIDE;
   void DropReference() { mRule = nullptr; }
   virtual mozilla::css::Declaration* GetCSSDeclaration(bool aAllocate) MOZ_OVERRIDE;
   virtual nsresult SetCSSDeclaration(mozilla::css::Declaration* aDecl) MOZ_OVERRIDE;
   virtual void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv) MOZ_OVERRIDE;
   virtual nsIDocument* DocToUpdate() MOZ_OVERRIDE;
   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsCSSPageStyleDeclaration,
                                                          nsICSSDeclaration)
   virtual nsINode *GetParentObject() MOZ_OVERRIDE;
 protected:
   // This reference is not reference-counted. The rule object tells us
   // when it's about to go away.
   nsCSSPageRule *mRule;
 };
 class nsCSSPageRule MOZ_FINAL : public mozilla::css::Rule,
                                 public nsIDOMCSSPageRule
 {
 public:
   // WARNING: Steals the contents of aDeclaration
   nsCSSPageRule(nsAutoPtr<mozilla::css::Declaration> aDeclaration)
     : mDeclaration(aDeclaration),
       mImportantRule(nullptr)
   {
   }
 private:
   nsCSSPageRule(const nsCSSPageRule& aCopy);
   ~nsCSSPageRule();
 public:
   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
   NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsCSSPageRule, nsIDOMCSSPageRule)
   // nsIStyleRule methods
 #ifdef DEBUG
   virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
 #endif
   // Rule methods
   DECL_STYLE_RULE_INHERIT
   virtual int32_t GetType() const MOZ_OVERRIDE;
   virtual already_AddRefed<mozilla::css::Rule> Clone() const;
   // nsIDOMCSSRule interface
   NS_DECL_NSIDOMCSSRULE
   // nsIDOMCSSPageRule interface
   NS_DECL_NSIDOMCSSPAGERULE
   mozilla::css::Declaration* Declaration()   { return mDeclaration; }
   void ChangeDeclaration(mozilla::css::Declaration* aDeclaration);
   mozilla::css::ImportantRule* GetImportantRule();
   virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
 private:
   nsAutoPtr<mozilla::css::Declaration>    mDeclaration;
   // lazily created when needed:
   nsRefPtr<nsCSSPageStyleDeclaration>     mDOMDeclaration;
   nsRefPtr<mozilla::css::ImportantRule>   mImportantRule;
 };
 namespace mozilla {
 class CSSSupportsRule : public css::GroupRule,
                         public nsIDOMCSSSupportsRule
 {
 public:
   CSSSupportsRule(bool aConditionMet, const nsString& aCondition);
   CSSSupportsRule(const CSSSupportsRule& aCopy);
   // nsIStyleRule methods
 #ifdef DEBUG
   virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
 #endif
   // Rule methods
   virtual int32_t GetType() const;
   virtual already_AddRefed<mozilla::css::Rule> Clone() const;
   virtual bool UseForPresentation(nsPresContext* aPresContext,
                                   nsMediaQueryResultCacheKey& aKey);
   virtual nsIDOMCSSRule* GetDOMRule()
   {
     return this;
   }
   virtual nsIDOMCSSRule* GetExistingDOMRule()
   {
     return this;
   }
   NS_DECL_ISUPPORTS_INHERITED
   // nsIDOMCSSRule interface
   NS_DECL_NSIDOMCSSRULE
   // nsIDOMCSSGroupingRule interface
   NS_DECL_NSIDOMCSSGROUPINGRULE
   // nsIDOMCSSConditionRule interface
   NS_DECL_NSIDOMCSSCONDITIONRULE
   // nsIDOMCSSSupportsRule interface
   NS_DECL_NSIDOMCSSSUPPORTSRULE
   virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
   static bool PrefEnabled()
   {
     return Preferences::GetBool("layout.css.supports-rule.enabled");
   }
 protected:
   bool mUseGroup;
   nsString mCondition;
 };
 } // namespace mozilla
 #endif /* !defined(nsCSSRules_h_) */

The Tor Browser / annotate

layout/style/nsCSSRules.h@925c144e1f1f (annotated)

layout/style/nsCSSRules.h