Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim: set ts=8 sts=2 et sw=2 tw=80: */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : /* representation of CSSPageRule for stylo */
       8             : 
       9             : #ifndef mozilla_ServoPageRule_h
      10             : #define mozilla_ServoPageRule_h
      11             : 
      12             : #include "mozilla/dom/CSSPageRule.h"
      13             : #include "mozilla/ServoBindingTypes.h"
      14             : 
      15             : #include "nsDOMCSSDeclaration.h"
      16             : 
      17             : namespace mozilla {
      18             : 
      19             : class ServoDeclarationBlock;
      20             : class ServoPageRule;
      21             : 
      22             : class ServoPageRuleDeclaration final : public nsDOMCSSDeclaration
      23             : {
      24             : public:
      25             :   NS_DECL_ISUPPORTS_INHERITED
      26             : 
      27             :   NS_IMETHOD GetParentRule(nsIDOMCSSRule** aParent) final;
      28             :   nsINode* GetParentObject() final;
      29             : 
      30             : protected:
      31             :   DeclarationBlock* GetCSSDeclaration(Operation aOperation) final;
      32             :   nsresult SetCSSDeclaration(DeclarationBlock* aDecl) final;
      33             :   nsIDocument* DocToUpdate() final;
      34             :   void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv) final;
      35             :   nsDOMCSSDeclaration::ServoCSSParsingEnvironment GetServoCSSParsingEnvironment() const final;
      36             : 
      37             : private:
      38             :   // For accessing the constructor.
      39             :   friend class ServoPageRule;
      40             : 
      41             :   explicit ServoPageRuleDeclaration(
      42             :     already_AddRefed<RawServoDeclarationBlock> aDecls);
      43             :   ~ServoPageRuleDeclaration();
      44             : 
      45             :   inline ServoPageRule* Rule();
      46             :   inline const ServoPageRule* Rule() const;
      47             : 
      48             :   RefPtr<ServoDeclarationBlock> mDecls;
      49             : };
      50             : 
      51             : class ServoPageRule final : public dom::CSSPageRule
      52             : {
      53             : public:
      54             :   ServoPageRule(RefPtr<RawServoPageRule> aRawRule,
      55             :                 uint32_t aLine, uint32_t aColumn);
      56             : 
      57             :   NS_DECL_ISUPPORTS_INHERITED
      58           0 :   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(
      59             :     ServoPageRule, dom::CSSPageRule
      60             :   )
      61             :   bool IsCCLeaf() const final;
      62             : 
      63           0 :   RawServoPageRule* Raw() const { return mRawRule; }
      64             : 
      65             :   // WebIDL interface
      66             :   void GetCssTextImpl(nsAString& aCssText) const final;
      67             :   nsICSSDeclaration* Style() final;
      68             : 
      69             :   // Methods of mozilla::css::Rule
      70             :   already_AddRefed<css::Rule> Clone() const final;
      71             :   size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf)
      72             :     const final;
      73             : #ifdef DEBUG
      74             :   void List(FILE* out = stdout, int32_t aIndent = 0) const final;
      75             : #endif
      76             : 
      77             : private:
      78             :   virtual ~ServoPageRule();
      79             : 
      80             :   // For computing the offset of mDecls.
      81             :   friend class ServoPageRuleDeclaration;
      82             : 
      83             :   RefPtr<RawServoPageRule> mRawRule;
      84             :   ServoPageRuleDeclaration mDecls;
      85             : };
      86             : 
      87             : ServoPageRule*
      88           0 : ServoPageRuleDeclaration::Rule()
      89             : {
      90             :   return reinterpret_cast<ServoPageRule*>(
      91           0 :     reinterpret_cast<uint8_t*>(this) - offsetof(ServoPageRule, mDecls));
      92             : }
      93             : 
      94             : const ServoPageRule*
      95           0 : ServoPageRuleDeclaration::Rule() const
      96             : {
      97             :   return reinterpret_cast<const ServoPageRule*>(
      98           0 :     reinterpret_cast<const uint8_t*>(this) - offsetof(ServoPageRule, mDecls));
      99             : }
     100             : 
     101             : } // namespace mozilla
     102             : 
     103             : #endif // mozilla_ServoPageRule_h