dom/html/HTMLDataListElement.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5 #ifndef HTMLDataListElement_h___
   6 #define HTMLDataListElement_h___
   7
   8 #include "mozilla/Attributes.h"
   9 #include "nsGenericHTMLElement.h"
  10 #include "nsContentList.h"
  11
  12 namespace mozilla {
  13 namespace dom {
  14
  15 class HTMLDataListElement MOZ_FINAL : public nsGenericHTMLElement
  16 {
  17 public:
  18   explicit HTMLDataListElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
  19     : nsGenericHTMLElement(aNodeInfo)
  20   {
  21   }
  22
  23   // nsISupports
  24   NS_DECL_ISUPPORTS_INHERITED
  25
  26   nsContentList* Options()
  27   {
  28     if (!mOptions) {
  29       mOptions = new nsContentList(this, MatchOptions, nullptr, nullptr, true);
  30     }
  31
  32     return mOptions;
  33   }
  34
  35
  36   virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const MOZ_OVERRIDE;
  37
  38   // This function is used to generate the nsContentList (option elements).
  39   static bool MatchOptions(nsIContent* aContent, int32_t aNamespaceID,
  40                              nsIAtom* 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) MOZ_OVERRIDE;
  48
  49   // <option>'s list inside the datalist element.
  50   nsRefPtr<nsContentList> mOptions;
  51 };
  52
  53 } // namespace dom
  54 } // namespace mozilla
  55
  56 #endif /* HTMLDataListElement_h___ */