gecko-dev/dom/workers/ServiceWorkerRegistration.h

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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/ServiceWorkerBinding.h"
#include "mozilla/dom/ServiceWorkerCommon.h"
#include "mozilla/dom/workers/bindings/WorkerFeature.h"
class nsPIDOMWindow;
namespace mozilla {
namespace dom {
class Promise;
class PushManager;
class WorkerListener;
namespace workers {
class ServiceWorker;
class WorkerPrivate;
}
bool
ServiceWorkerRegistrationVisible(JSContext* aCx, JSObject* aObj);
// This class exists solely so that we can satisfy some WebIDL Func= attribute
// constraints. Func= converts the function name to a header file to include, in
// this case "ServiceWorkerRegistration.h".
class ServiceWorkerRegistration final
{
public:
// Something that we can feed into the Func webidl property to ensure that
// SetScope is never exposed to the user.
static bool
WebPushMethodHider(JSContext* unusedContext, JSObject* unusedObject) {
return false;
}
};
// Used by ServiceWorkerManager to notify ServiceWorkerRegistrations of
// updatefound event and invalidating ServiceWorker instances.
class ServiceWorkerRegistrationListener
{
public:
NS_IMETHOD_(MozExternalRefCountType) AddRef() = 0;
NS_IMETHOD_(MozExternalRefCountType) Release() = 0;
virtual void
UpdateFound() = 0;
virtual void
InvalidateWorkers(WhichServiceWorker aWhichOnes) = 0;
virtual void
GetScope(nsAString& aScope) const = 0;
};
class ServiceWorkerRegistrationBase : public DOMEventTargetHelper
{
public:
NS_DECL_ISUPPORTS_INHERITED
IMPL_EVENT_HANDLER(updatefound)
ServiceWorkerRegistrationBase(nsPIDOMWindow* aWindow,
const nsAString& aScope);
JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override = 0;
virtual already_AddRefed<workers::ServiceWorker>
GetInstalling() = 0;
virtual already_AddRefed<workers::ServiceWorker>
GetWaiting() = 0;
virtual already_AddRefed<workers::ServiceWorker>
GetActive() = 0;
protected:
virtual ~ServiceWorkerRegistrationBase()
{ }
const nsString mScope;
};
class ServiceWorkerRegistrationMainThread final : public ServiceWorkerRegistrationBase,
public ServiceWorkerRegistrationListener
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ServiceWorkerRegistrationMainThread,
ServiceWorkerRegistrationBase)
ServiceWorkerRegistrationMainThread(nsPIDOMWindow* aWindow,
const nsAString& aScope);
void
Update();
already_AddRefed<Promise>
Unregister(ErrorResult& aRv);
JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
already_AddRefed<workers::ServiceWorker>
GetInstalling() override;
already_AddRefed<workers::ServiceWorker>
GetWaiting() override;
already_AddRefed<workers::ServiceWorker>
GetActive() override;
already_AddRefed<PushManager>
GetPushManager(ErrorResult& aRv);
// DOMEventTargethelper
void DisconnectFromOwner() override
{
StopListeningForEvents();
ServiceWorkerRegistrationBase::DisconnectFromOwner();
}
// ServiceWorkerRegistrationListener
void
UpdateFound() override;
void
InvalidateWorkers(WhichServiceWorker aWhichOnes) override;
void
GetScope(nsAString& aScope) const override
{
aScope = mScope;
}
private:
~ServiceWorkerRegistrationMainThread();
already_AddRefed<workers::ServiceWorker>
GetWorkerReference(WhichServiceWorker aWhichOne);
void
StartListeningForEvents();
void
StopListeningForEvents();
bool mListeningForEvents;
// 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;
#ifndef MOZ_SIMPLEPUSH
nsRefPtr<PushManager> mPushManager;
#endif
};
class ServiceWorkerRegistrationWorkerThread final : public ServiceWorkerRegistrationBase
, public workers::WorkerFeature
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ServiceWorkerRegistrationWorkerThread,
ServiceWorkerRegistrationBase)
ServiceWorkerRegistrationWorkerThread(workers::WorkerPrivate* aWorkerPrivate,
const nsAString& aScope);
void
Update();
already_AddRefed<Promise>
Unregister(ErrorResult& aRv);
JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
already_AddRefed<workers::ServiceWorker>
GetInstalling() override;
already_AddRefed<workers::ServiceWorker>
GetWaiting() override;
already_AddRefed<workers::ServiceWorker>
GetActive() override;
void
GetScope(nsAString& aScope) const
{
aScope = mScope;
}
bool
Notify(JSContext* aCx, workers::Status aStatus) override;
private:
enum Reason
{
RegistrationIsGoingAway = 0,
WorkerIsGoingAway,
};
~ServiceWorkerRegistrationWorkerThread();
void
InitListener();
void
ReleaseListener(Reason aReason);
workers::WorkerPrivate* mWorkerPrivate;
nsRefPtr<WorkerListener> mListener;
};
} // namespace dom
} // namespace mozilla
#endif /* mozilla_dom_ServiceWorkerRegistration_h */