dom/html/HTMLDataListElement.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 #ifndef HTMLDataListElement_h___
   7 #define HTMLDataListElement_h___
   8
   9 #include "mozilla/Attributes.h"
  10 #include "nsGenericHTMLElement.h"
  11 #include "nsContentList.h"
  12
  13 namespace mozilla::dom {
  14
  15 class HTMLDataListElement final : public nsGenericHTMLElement {
  16  public:
  17   explicit HTMLDataListElement(
  18       already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
  19       : nsGenericHTMLElement(std::move(aNodeInfo)) {
  20     SetFlags(ELEMENT_IS_DATALIST_OR_HAS_DATALIST_ANCESTOR);
  21   }
  22
  23   NS_IMPL_FROMNODE_HTML_WITH_TAG(HTMLDataListElement, datalist)
  24
  25   // nsISupports
  26   NS_DECL_ISUPPORTS_INHERITED
  27
  28   nsContentList* Options() {
  29     if (!mOptions) {
  30       mOptions = new nsContentList(this, MatchOptions, nullptr, nullptr, true);
  31     }
  32
  33     return mOptions;
  34   }
  35
  36   virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
  37
  38   // This function is used to generate the nsContentList (option elements).
  39   static bool MatchOptions(Element* aElement, int32_t aNamespaceID,
  40                            nsAtom* aAtom, void* aData);
  41
  42   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLDataListElement,
  43                                            nsGenericHTMLElement)
  44  protected:
  45   virtual ~HTMLDataListElement();
  46
  47   virtual JSObject* WrapNode(JSContext* aCx,
  48                              JS::Handle<JSObject*> aGivenProto) override;
  49
  50   // <option>'s list inside the datalist element.
  51   RefPtr<nsContentList> mOptions;
  52 };
  53
  54 }  // namespace mozilla::dom
  55
  56 #endif /* HTMLDataListElement_h___ */