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104 lines
2.2 KiB
C++
104 lines
2.2 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_workers_workermessageport_h__
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#define mozilla_dom_workers_workermessageport_h__
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#include "js/StructuredClone.h"
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#include "mozilla/dom/BindingDeclarations.h"
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#include "mozilla/dom/workers/bindings/EventTarget.h"
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BEGIN_WORKERS_NAMESPACE
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class WorkerPrivate;
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class WorkerMessagePort : public EventTarget
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{
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friend class WorkerPrivate;
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typedef mozilla::ErrorResult ErrorResult;
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struct MessageInfo
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{
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JSAutoStructuredCloneBuffer mBuffer;
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nsTArray<nsCOMPtr<nsISupports>> mClonedObjects;
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};
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nsTArray<MessageInfo> mQueuedMessages;
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uint64_t mSerial;
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bool mStarted;
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bool mClosed;
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public:
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virtual void
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_trace(JSTracer* aTrc) MOZ_OVERRIDE;
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virtual void
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_finalize(JSFreeOp* aFop) MOZ_OVERRIDE;
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void
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PostMessage(JSContext* aCx, JS::HandleValue aMessage,
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const Optional<Sequence<JS::Value>>& aTransferable,
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ErrorResult& aRv);
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void
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Start();
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void
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Close()
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{
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if (!IsClosed()) {
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CloseInternal();
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}
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}
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already_AddRefed<EventHandlerNonNull>
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GetOnmessage(ErrorResult& aRv)
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{
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return GetEventListener(NS_LITERAL_STRING("message"), aRv);
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}
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void
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SetOnmessage(EventHandlerNonNull* aListener, ErrorResult& aRv)
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{
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SetEventListener(NS_LITERAL_STRING("message"), aListener, aRv);
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if (!aRv.Failed()) {
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Start();
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}
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}
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uint64_t
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Serial() const
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{
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return mSerial;
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}
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bool
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MaybeDispatchEvent(JSContext* aCx, JSAutoStructuredCloneBuffer& aBuffer,
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nsTArray<nsCOMPtr<nsISupports>>& aClonedObjects);
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bool
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IsClosed() const
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{
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return mClosed;
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}
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private:
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// Only created by WorkerPrivate.
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WorkerMessagePort(JSContext* aCx, uint64_t aSerial)
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: EventTarget(aCx), mSerial(aSerial), mStarted(false), mClosed(false)
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{ }
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virtual ~WorkerMessagePort()
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{ }
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void
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CloseInternal();
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};
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END_WORKERS_NAMESPACE
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#endif // mozilla_dom_workers_workermessageport_h__
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