dom/base/nsMappedAttributeElement.h

   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 /**
   8  * nsMappedAttributeElement is the base for elements supporting style mapped
   9  * attributes via nsMappedAttributes (HTML and MathML).
  10  */
  11
  12 #ifndef NS_MAPPEDATTRIBUTEELEMENT_H_
  13 #define NS_MAPPEDATTRIBUTEELEMENT_H_
  14
  15 #include "mozilla/Attributes.h"
  16 #include "nsStyledElement.h"
  17
  18 namespace mozilla {
  19 class MappedDeclarations;
  20 }
  21
  22 class nsMappedAttributes;
  23 struct nsRuleData;
  24
  25 using nsMapRuleToAttributesFunc = void (*)(
  26     const nsMappedAttributes* aAttributes, mozilla::MappedDeclarations&);
  27
  28 using nsMappedAttributeElementBase = nsStyledElement;
  29
  30 class nsMappedAttributeElement : public nsMappedAttributeElementBase {
  31  protected:
  32   explicit nsMappedAttributeElement(
  33       already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
  34       : nsMappedAttributeElementBase(std::move(aNodeInfo)) {}
  35
  36  public:
  37   virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const;
  38
  39   static void MapNoAttributesInto(const nsMappedAttributes* aAttributes,
  40                                   mozilla::MappedDeclarations&);
  41
  42   virtual bool SetAndSwapMappedAttribute(nsAtom* aName, nsAttrValue& aValue,
  43                                          bool* aValueWasSet,
  44                                          nsresult* aRetval) override;
  45
  46   virtual void NodeInfoChanged(mozilla::dom::Document* aOldDoc) override;
  47 };
  48
  49 #endif  // NS_MAPPEDATTRIBUTEELEMENT_H_