/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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 mozilla_dom_MessageChannel_h

#define mozilla_dom_MessageChannel_h

#include "mozilla/Attributes.h"

#include "mozilla/ErrorResult.h"

#include "mozilla/dom/BindingDeclarations.h"

#include "nsCycleCollectionParticipant.h"

#include "nsWrapperCache.h"

#include "nsCOMPtr.h"

class nsIGlobalObject;

namespace mozilla {

namespace dom {

class MessagePort;

class MessageChannel final : public nsISupports

                           , public nsWrapperCache

{

public:

  NS_DECL_CYCLE_COLLECTING_ISUPPORTS

  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(MessageChannel)

  nsIGlobalObject*

  GetParentObject() const

  {

    return mGlobal;

  }

  virtual JSObject*

  WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;

  static already_AddRefed<MessageChannel>

  Constructor(const GlobalObject& aGlobal, ErrorResult& aRv);

  static already_AddRefed<MessageChannel>

  Constructor(nsIGlobalObject* aGlobal, ErrorResult& aRv);

  MessagePort*

  Port1() const

  {

    return mPort1;

  }

  MessagePort*

  Port2() const

  {

    return mPort2;

  }

private:

  explicit MessageChannel(nsIGlobalObject* aGlobal);

  ~MessageChannel();

  nsCOMPtr<nsIGlobalObject> mGlobal;

  RefPtr<MessagePort> mPort1;

  RefPtr<MessagePort> mPort2;

};

} // namespace dom

} // namespace mozilla

#endif // mozilla_dom_MessageChannel_h