dom/events/DataContainerEvent.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
   6 #ifndef mozilla_dom_DataContainerEvent_h_
   7 #define mozilla_dom_DataContainerEvent_h_
   8
   9 #include "mozilla/dom/DataContainerEventBinding.h"
  10 #include "mozilla/dom/Event.h"
  11 #include "nsIDOMDataContainerEvent.h"
  12 #include "nsInterfaceHashtable.h"
  13
  14 namespace mozilla {
  15 namespace dom {
  16
  17 class DataContainerEvent : public Event,
  18                            public nsIDOMDataContainerEvent
  19 {
  20 public:
  21   DataContainerEvent(EventTarget* aOwner,
  22                      nsPresContext* aPresContext,
  23                      WidgetEvent* aEvent);
  24
  25   NS_DECL_ISUPPORTS_INHERITED
  26
  27   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(DataContainerEvent, Event)
  28
  29   NS_FORWARD_TO_EVENT
  30
  31   NS_DECL_NSIDOMDATACONTAINEREVENT
  32
  33   virtual JSObject*
  34   WrapObject(JSContext* aCx) MOZ_OVERRIDE
  35   {
  36     return DataContainerEventBinding::Wrap(aCx, this);
  37   }
  38
  39   already_AddRefed<nsIVariant> GetData(const nsAString& aKey)
  40   {
  41     nsCOMPtr<nsIVariant> val;
  42     GetData(aKey, getter_AddRefs(val));
  43     return val.forget();
  44   }
  45
  46   void SetData(JSContext* aCx, const nsAString& aKey,
  47                JS::Handle<JS::Value> aVal, ErrorResult& aRv);
  48
  49 protected:
  50   ~DataContainerEvent() {}
  51
  52 private:
  53   static PLDHashOperator
  54     TraverseEntry(const nsAString& aKey, nsIVariant* aDataItem, void* aUserArg);
  55
  56   nsInterfaceHashtable<nsStringHashKey, nsIVariant> mData;
  57 };
  58
  59 } // namespace dom
  60 } // namespace mozilla
  61
  62 #endif // mozilla_dom_DataContainerEvent_h_