gecko/dom/events/nsDOMDataContainerEvent.h

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsDOMDataContainerEvent_h___
#define nsDOMDataContainerEvent_h___

#include "nsIDOMDataContainerEvent.h"
#include "nsDOMEvent.h"
#include "nsInterfaceHashtable.h"
#include "mozilla/dom/DataContainerEventBinding.h"

class nsDOMDataContainerEvent : public nsDOMEvent,
                                public nsIDOMDataContainerEvent
{
public:
  nsDOMDataContainerEvent(mozilla::dom::EventTarget* aOwner,
                          nsPresContext* aPresContext,
                          mozilla::WidgetEvent* aEvent);

  NS_DECL_ISUPPORTS_INHERITED

  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsDOMDataContainerEvent, nsDOMEvent)

  NS_FORWARD_TO_NSDOMEVENT

  NS_DECL_NSIDOMDATACONTAINEREVENT

  virtual JSObject*
  WrapObject(JSContext* aCx, JS::Handle<JSObject*> aScope) MOZ_OVERRIDE
  {
    return mozilla::dom::DataContainerEventBinding::Wrap(aCx, aScope, this);
  }

  already_AddRefed<nsIVariant> GetData(const nsAString& aKey)
  {
    nsCOMPtr<nsIVariant> val;
    GetData(aKey, getter_AddRefs(val));
    return val.forget();
  }

  void SetData(JSContext* aCx, const nsAString& aKey,
               JS::Handle<JS::Value> aVal, mozilla::ErrorResult& aRv);

private:
  static PLDHashOperator
    TraverseEntry(const nsAString& aKey, nsIVariant *aDataItem, void* aUserArg);

  nsInterfaceHashtable<nsStringHashKey, nsIVariant> mData;
};

#endif