dom/html/HTMLMetaElement.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 #ifndef mozilla_dom_HTMLMetaElement_h
   8 #define mozilla_dom_HTMLMetaElement_h
   9
  10 #include "mozilla/Attributes.h"
  11 #include "nsGenericHTMLElement.h"
  12
  13 namespace mozilla::dom {
  14
  15 class HTMLMetaElement final : public nsGenericHTMLElement {
  16  public:
  17   explicit HTMLMetaElement(
  18       already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
  19
  20   // nsISupports
  21   NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLMetaElement, nsGenericHTMLElement)
  22
  23   nsresult BindToTree(BindContext&, nsINode& aParent) override;
  24   void UnbindFromTree(UnbindContext&) override;
  25
  26   void AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
  27                     const nsAttrValue* aValue, const nsAttrValue* aOldValue,
  28                     nsIPrincipal* aSubjectPrincipal, bool aNotify) override;
  29
  30   void CreateAndDispatchEvent(Document&, const nsAString& aEventName);
  31
  32   virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
  33
  34   void GetName(nsAString& aValue) { GetHTMLAttr(nsGkAtoms::name, aValue); }
  35   void SetName(const nsAString& aName, ErrorResult& aRv) {
  36     SetHTMLAttr(nsGkAtoms::name, aName, aRv);
  37   }
  38   void GetHttpEquiv(nsAString& aValue) {
  39     GetHTMLAttr(nsGkAtoms::httpEquiv, aValue);
  40   }
  41   void SetHttpEquiv(const nsAString& aHttpEquiv, ErrorResult& aRv) {
  42     SetHTMLAttr(nsGkAtoms::httpEquiv, aHttpEquiv, aRv);
  43   }
  44   void GetContent(nsAString& aValue) {
  45     GetHTMLAttr(nsGkAtoms::content, aValue);
  46   }
  47   void SetContent(const nsAString& aContent, ErrorResult& aRv) {
  48     SetHTMLAttr(nsGkAtoms::content, aContent, aRv);
  49   }
  50   void GetScheme(nsAString& aValue) { GetHTMLAttr(nsGkAtoms::scheme, aValue); }
  51   void SetScheme(const nsAString& aScheme, ErrorResult& aRv) {
  52     SetHTMLAttr(nsGkAtoms::scheme, aScheme, aRv);
  53   }
  54   void GetMedia(nsAString& aValue) { GetHTMLAttr(nsGkAtoms::media, aValue); }
  55   void SetMedia(const nsAString& aMedia, ErrorResult& aRv) {
  56     SetHTMLAttr(nsGkAtoms::media, aMedia, aRv);
  57   }
  58
  59   JSObject* WrapNode(JSContext*, JS::Handle<JSObject*> aGivenProto) override;
  60
  61  protected:
  62   virtual ~HTMLMetaElement();
  63
  64  private:
  65   enum class ChangeKind : uint8_t { TreeChange, NameChange, ContentChange };
  66   void MetaRemoved(Document& aDoc, const nsAttrValue& aName,
  67                    ChangeKind aChangeKind);
  68   void MetaAddedOrChanged(Document& aDoc, const nsAttrValue& aName,
  69                           ChangeKind aChangeKind);
  70 };
  71
  72 }  // namespace mozilla::dom
  73
  74 #endif  // mozilla_dom_HTMLMetaElement_h