gecko-dev/dom/workers/SharedWorker.h

115 строки
2.6 KiB
C++

/* -*- 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_workers_sharedworker_h__
#define mozilla_dom_workers_sharedworker_h__
#include "Workers.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/workers/bindings/MessagePort.h"
#include "mozilla/DOMEventTargetHelper.h"
class nsIDOMEvent;
class nsPIDOMWindow;
namespace mozilla {
class EventChainPreVisitor;
} // namespace mozilla
BEGIN_WORKERS_NAMESPACE
class MessagePort;
class RuntimeService;
class WorkerPrivate;
class SharedWorker final : public DOMEventTargetHelper
{
friend class MessagePort;
friend class RuntimeService;
typedef mozilla::ErrorResult ErrorResult;
typedef mozilla::dom::GlobalObject GlobalObject;
nsRefPtr<WorkerPrivate> mWorkerPrivate;
nsRefPtr<MessagePort> mMessagePort;
nsTArray<nsCOMPtr<nsIDOMEvent>> mFrozenEvents;
uint64_t mSerial;
bool mFrozen;
public:
static already_AddRefed<SharedWorker>
Constructor(const GlobalObject& aGlobal, JSContext* aCx,
const nsAString& aScriptURL, const Optional<nsAString>& aName,
ErrorResult& aRv);
already_AddRefed<mozilla::dom::workers::MessagePort>
Port();
uint64_t
Serial() const
{
return mSerial;
}
bool
IsFrozen() const
{
return mFrozen;
}
void
Freeze();
void
Thaw();
void
QueueEvent(nsIDOMEvent* aEvent);
void
Close();
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SharedWorker, DOMEventTargetHelper)
IMPL_EVENT_HANDLER(error)
virtual JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
virtual nsresult
PreHandleEvent(EventChainPreVisitor& aVisitor) override;
WorkerPrivate*
GetWorkerPrivate() const
{
return mWorkerPrivate;
}
private:
// This class can only be created from the RuntimeService.
SharedWorker(nsPIDOMWindow* aWindow,
WorkerPrivate* aWorkerPrivate);
// This class is reference-counted and will be destroyed from Release().
~SharedWorker();
// Only called by MessagePort.
void
PostMessage(JSContext* aCx, JS::Handle<JS::Value> aMessage,
const Optional<Sequence<JS::Value>>& aTransferable,
ErrorResult& aRv);
// Only called by RuntimeService.
void
NoteDeadWorker(JSContext* aCx);
};
END_WORKERS_NAMESPACE
#endif // mozilla_dom_workers_sharedworker_h__