author Dave Townsend <>
Fri, 26 Sep 2014 08:32:55 -0700
changeset 230683 8f7dd750e75fafc6460edd7f9fe6455029419f6c
parent 213794 ad2e6df5024093e92e8d4befd34733b7f1b00066
child 235405 cde524d5ce6411c5183342dda8442a2be564dfcf
permissions -rw-r--r--
Bug 1068440: Uplift Add-on SDK to Firefox.

/* -*- 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 */

#ifndef mozilla_dom_MessageEvent_h_
#define mozilla_dom_MessageEvent_h_

#include "mozilla/dom/Event.h"
#include "nsCycleCollectionParticipant.h"
#include "nsIDOMMessageEvent.h"
#include "mozilla/dom/MessagePortList.h"

namespace mozilla {
namespace dom {

struct MessageEventInit;
class MessagePort;
class MessagePortBase;
class MessagePortList;
class OwningWindowProxyOrMessagePort;

 * Implements the MessageEvent event, used for cross-document messaging and
 * server-sent events.
 * See for
 * further details.
class MessageEvent : public Event,
                     public nsIDOMMessageEvent
  MessageEvent(EventTarget* aOwner,
               nsPresContext* aPresContext,
               WidgetEvent* aEvent);



  // Forward to base class

  virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;

  void GetData(JSContext* aCx, JS::MutableHandle<JS::Value> aData,
               ErrorResult& aRv);

  void GetSource(Nullable<OwningWindowProxyOrMessagePort>& aValue) const;

  MessagePortList* GetPorts()
    return mPorts;

  void SetPorts(MessagePortList* aPorts);

  // Non WebIDL methods
  void SetSource(mozilla::dom::MessagePort* aPort)
    mPortSource = aPort;

  void SetSource(nsPIDOMWindow* aWindow)
    mWindowSource = aWindow;

  static already_AddRefed<MessageEvent>
  Constructor(const GlobalObject& aGlobal,
              const nsAString& aType,
              const MessageEventInit& aEventInit,
              ErrorResult& aRv);


  JS::Heap<JS::Value> mData;
  nsString mOrigin;
  nsString mLastEventId;
  nsCOMPtr<nsIDOMWindow> mWindowSource;
  nsRefPtr<MessagePortBase> mPortSource;
  nsRefPtr<MessagePortList> mPorts;

} // namespace dom
} // namespace mozilla

#endif // mozilla_dom_MessageEvent_h_