gecko-dev/dom/workers/ServiceWorkerRegistration.h

95 строки
2.4 KiB
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/* -*- 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_ServiceWorkerRegistration_h
#define mozilla_dom_ServiceWorkerRegistration_h
#include "mozilla/DOMEventTargetHelper.h"
#include "mozilla/dom/ServiceWorkerCommon.h"
class nsPIDOMWindow;
namespace mozilla {
namespace dom {
class Promise;
namespace workers {
class ServiceWorker;
}
class ServiceWorkerRegistration MOZ_FINAL : public DOMEventTargetHelper
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ServiceWorkerRegistration,
DOMEventTargetHelper)
IMPL_EVENT_HANDLER(updatefound)
ServiceWorkerRegistration(nsPIDOMWindow* aWindow,
const nsAString& aScope);
JSObject*
WrapObject(JSContext* aCx) MOZ_OVERRIDE;
already_AddRefed<workers::ServiceWorker>
GetInstalling();
already_AddRefed<workers::ServiceWorker>
GetWaiting();
already_AddRefed<workers::ServiceWorker>
GetActive();
void
GetScope(nsAString& aScope) const
{
aScope = mScope;
}
already_AddRefed<Promise>
Unregister(ErrorResult& aRv);
// Useful methods for ServiceWorkerManager:
void
InvalidateWorkerReference(WhichServiceWorker aWhichOnes);
void
QueueStateChangeEvent(WhichServiceWorker aWhichOne, ServiceWorkerState aState) const;
// DOMEventTargethelper
virtual void DisconnectFromOwner() MOZ_OVERRIDE;
private:
~ServiceWorkerRegistration();
already_AddRefed<workers::ServiceWorker>
GetWorkerReference(WhichServiceWorker aWhichOne);
void
StartListeningForEvents();
void
StopListeningForEvents();
// The following properties are cached here to ensure JS equality is satisfied
// instead of acquiring a new worker instance from the ServiceWorkerManager
// for every access. A null value is considered a cache miss.
// These three may change to a new worker at any time.
nsRefPtr<workers::ServiceWorker> mInstallingWorker;
nsRefPtr<workers::ServiceWorker> mWaitingWorker;
nsRefPtr<workers::ServiceWorker> mActiveWorker;
const nsString mScope;
bool mListeningForEvents;
};
} // namespace dom
} // namespace mozilla
#endif /* mozilla_dom_ServiceWorkerRegistration_h */