michael@0: /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_dom_workers_messageport_h_
michael@0: #define mozilla_dom_workers_messageport_h_
michael@0: 
michael@0: #include "Workers.h"
michael@0: 
michael@0: #include "mozilla/DOMEventTargetHelper.h"
michael@0: #include "mozilla/dom/BindingDeclarations.h"
michael@0: #include "mozilla/dom/MessagePort.h"
michael@0: 
michael@0: class nsIDOMEvent;
michael@0: class nsPIDOMWindow;
michael@0: 
michael@0: namespace mozilla {
michael@0: class EventChainPreVisitor;
michael@0: } // namespace mozilla
michael@0: 
michael@0: BEGIN_WORKERS_NAMESPACE
michael@0: 
michael@0: class SharedWorker;
michael@0: class WorkerPrivate;
michael@0: 
michael@0: class MessagePort MOZ_FINAL : public mozilla::dom::MessagePortBase
michael@0: {
michael@0:   friend class SharedWorker;
michael@0:   friend class WorkerPrivate;
michael@0: 
michael@0:   typedef mozilla::ErrorResult ErrorResult;
michael@0: 
michael@0:   nsRefPtr<SharedWorker> mSharedWorker;
michael@0:   WorkerPrivate* mWorkerPrivate;
michael@0:   nsTArray<nsCOMPtr<nsIDOMEvent>> mQueuedEvents;
michael@0:   uint64_t mSerial;
michael@0:   bool mStarted;
michael@0: 
michael@0: public:
michael@0:   static bool
michael@0:   PrefEnabled();
michael@0: 
michael@0:   virtual void
michael@0:   PostMessageMoz(JSContext* aCx, JS::Handle<JS::Value> aMessage,
michael@0:                  const Optional<Sequence<JS::Value>>& aTransferable,
michael@0:                  ErrorResult& aRv) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void
michael@0:   Start() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void
michael@0:   Close() MOZ_OVERRIDE;
michael@0: 
michael@0:   uint64_t
michael@0:   Serial() const
michael@0:   {
michael@0:     return mSerial;
michael@0:   }
michael@0: 
michael@0:   void
michael@0:   QueueEvent(nsIDOMEvent* aEvent);
michael@0: 
michael@0:   NS_DECL_ISUPPORTS_INHERITED
michael@0:   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(MessagePort, DOMEventTargetHelper)
michael@0: 
michael@0:   virtual EventHandlerNonNull*
michael@0:   GetOnmessage() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void
michael@0:   SetOnmessage(EventHandlerNonNull* aCallback) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual already_AddRefed<MessagePortBase>
michael@0:   Clone() MOZ_OVERRIDE;
michael@0: 
michael@0:   bool
michael@0:   IsClosed() const
michael@0:   {
michael@0:     return !mSharedWorker && !mWorkerPrivate;
michael@0:   }
michael@0: 
michael@0:   virtual JSObject*
michael@0:   WrapObject(JSContext* aCx) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsresult
michael@0:   PreHandleEvent(EventChainPreVisitor& aVisitor) MOZ_OVERRIDE;
michael@0: 
michael@0: #ifdef DEBUG
michael@0:   void
michael@0:   AssertCorrectThread() const;
michael@0: #else
michael@0:   void
michael@0:   AssertCorrectThread() const { }
michael@0: #endif
michael@0: 
michael@0: private:
michael@0:   // This class can only be created by SharedWorker or WorkerPrivate.
michael@0:   MessagePort(nsPIDOMWindow* aWindow, SharedWorker* aSharedWorker,
michael@0:               uint64_t aSerial);
michael@0:   MessagePort(WorkerPrivate* aWorkerPrivate, uint64_t aSerial);
michael@0: 
michael@0:   // This class is reference-counted and will be destroyed from Release().
michael@0:   ~MessagePort();
michael@0: 
michael@0:   void
michael@0:   CloseInternal();
michael@0: };
michael@0: 
michael@0: END_WORKERS_NAMESPACE
michael@0: 
michael@0: #endif // mozilla_dom_workers_messageport_h_