dom/messagechannel/MessageChannel.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_MessageChannel_h
   8 #define mozilla_dom_MessageChannel_h
   9
  10 #include "mozilla/Attributes.h"
  11 #include "mozilla/dom/BindingDeclarations.h"
  12 #include "nsCycleCollectionParticipant.h"
  13 #include "nsWrapperCache.h"
  14 #include "nsCOMPtr.h"
  15
  16 class nsIGlobalObject;
  17
  18 namespace mozilla {
  19 class ErrorResult;
  20
  21 namespace dom {
  22
  23 class MessagePort;
  24
  25 class MessageChannel final : public nsISupports, public nsWrapperCache {
  26  public:
  27   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  28   NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(MessageChannel)
  29
  30   nsIGlobalObject* GetParentObject() const { return mGlobal; }
  31
  32   virtual JSObject* WrapObject(JSContext* aCx,
  33                                JS::Handle<JSObject*> aGivenProto) override;
  34
  35   static already_AddRefed<MessageChannel> Constructor(
  36       const GlobalObject& aGlobal, ErrorResult& aRv);
  37
  38   static already_AddRefed<MessageChannel> Constructor(nsIGlobalObject* aGlobal,
  39                                                       ErrorResult& aRv);
  40
  41   MessagePort* Port1() const { return mPort1; }
  42
  43   MessagePort* Port2() const { return mPort2; }
  44
  45  private:
  46   explicit MessageChannel(nsIGlobalObject* aGlobal);
  47   ~MessageChannel();
  48
  49   nsCOMPtr<nsIGlobalObject> mGlobal;
  50
  51   RefPtr<MessagePort> mPort1;
  52   RefPtr<MessagePort> mPort2;
  53 };
  54
  55 }  // namespace dom
  56 }  // namespace mozilla
  57
  58 #endif  // mozilla_dom_MessageChannel_h