gecko/dom/workers/WorkerMessagePort.h
Ben Turner b5c336a791 Bug 643325 - Implement SharedWorker. r=khuey.
--HG--
extra : transplant_source : %D6%8C%9Ajc%3C%F0%0E%DB%C6%7E2%AA%97%B8%AA%B2%7EY%B6
2013-06-05 07:04:23 -07:00

104 lines
2.2 KiB
C++

/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* 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_workers_workermessageport_h__
#define mozilla_dom_workers_workermessageport_h__
#include "js/StructuredClone.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/workers/bindings/EventTarget.h"
BEGIN_WORKERS_NAMESPACE
class WorkerPrivate;
class WorkerMessagePort : public EventTarget
{
friend class WorkerPrivate;
typedef mozilla::ErrorResult ErrorResult;
struct MessageInfo
{
JSAutoStructuredCloneBuffer mBuffer;
nsTArray<nsCOMPtr<nsISupports>> mClonedObjects;
};
nsTArray<MessageInfo> mQueuedMessages;
uint64_t mSerial;
bool mStarted;
bool mClosed;
public:
virtual void
_trace(JSTracer* aTrc) MOZ_OVERRIDE;
virtual void
_finalize(JSFreeOp* aFop) MOZ_OVERRIDE;
void
PostMessage(JSContext* aCx, JS::HandleValue aMessage,
const Optional<Sequence<JS::Value>>& aTransferable,
ErrorResult& aRv);
void
Start();
void
Close()
{
if (!IsClosed()) {
CloseInternal();
}
}
already_AddRefed<EventHandlerNonNull>
GetOnmessage(ErrorResult& aRv)
{
return GetEventListener(NS_LITERAL_STRING("message"), aRv);
}
void
SetOnmessage(EventHandlerNonNull* aListener, ErrorResult& aRv)
{
SetEventListener(NS_LITERAL_STRING("message"), aListener, aRv);
if (!aRv.Failed()) {
Start();
}
}
uint64_t
Serial() const
{
return mSerial;
}
bool
MaybeDispatchEvent(JSContext* aCx, JSAutoStructuredCloneBuffer& aBuffer,
nsTArray<nsCOMPtr<nsISupports>>& aClonedObjects);
bool
IsClosed() const
{
return mClosed;
}
private:
// Only created by WorkerPrivate.
WorkerMessagePort(JSContext* aCx, uint64_t aSerial)
: EventTarget(aCx), mSerial(aSerial), mStarted(false), mClosed(false)
{ }
virtual ~WorkerMessagePort()
{ }
void
CloseInternal();
};
END_WORKERS_NAMESPACE
#endif // mozilla_dom_workers_workermessageport_h__