mirror of
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205 lines
5.2 KiB
C++
205 lines
5.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_workers_serviceworkerregistrationinfo_h
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#define mozilla_dom_workers_serviceworkerregistrationinfo_h
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#include "mozilla/dom/workers/ServiceWorkerInfo.h"
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namespace mozilla {
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namespace dom {
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namespace workers {
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class ServiceWorkerRegistrationInfo final
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: public nsIServiceWorkerRegistrationInfo
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{
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uint32_t mControlledDocumentsCounter;
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enum
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{
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NoUpdate,
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NeedTimeCheckAndUpdate,
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NeedUpdate
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} mUpdateState;
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uint64_t mLastUpdateCheckTime;
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RefPtr<ServiceWorkerInfo> mEvaluatingWorker;
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RefPtr<ServiceWorkerInfo> mActiveWorker;
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RefPtr<ServiceWorkerInfo> mWaitingWorker;
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RefPtr<ServiceWorkerInfo> mInstallingWorker;
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virtual ~ServiceWorkerRegistrationInfo();
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSISERVICEWORKERREGISTRATIONINFO
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const nsCString mScope;
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nsCOMPtr<nsIPrincipal> mPrincipal;
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nsTArray<nsCOMPtr<nsIServiceWorkerRegistrationInfoListener>> mListeners;
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// When unregister() is called on a registration, it is not immediately
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// removed since documents may be controlled. It is marked as
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// pendingUninstall and when all controlling documents go away, removed.
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bool mPendingUninstall;
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ServiceWorkerRegistrationInfo(const nsACString& aScope,
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nsIPrincipal* aPrincipal);
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already_AddRefed<ServiceWorkerInfo>
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Newest() const
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{
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RefPtr<ServiceWorkerInfo> newest;
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if (mInstallingWorker) {
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newest = mInstallingWorker;
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} else if (mWaitingWorker) {
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newest = mWaitingWorker;
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} else {
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newest = mActiveWorker;
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}
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return newest.forget();
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}
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already_AddRefed<ServiceWorkerInfo>
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GetServiceWorkerInfoById(uint64_t aId);
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void
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StartControllingADocument()
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{
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++mControlledDocumentsCounter;
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}
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void
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StopControllingADocument()
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{
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MOZ_ASSERT(mControlledDocumentsCounter);
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--mControlledDocumentsCounter;
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}
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bool
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IsControllingDocuments() const
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{
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return mActiveWorker && mControlledDocumentsCounter;
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}
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void
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Clear();
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void
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TryToActivateAsync();
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void
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TryToActivate();
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void
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Activate();
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void
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FinishActivate(bool aSuccess);
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void
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RefreshLastUpdateCheckTime();
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bool
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IsLastUpdateCheckTimeOverOneDay() const;
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void
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MaybeScheduleTimeCheckAndUpdate();
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void
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MaybeScheduleUpdate();
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bool
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CheckAndClearIfUpdateNeeded();
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ServiceWorkerInfo*
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GetEvaluating() const;
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ServiceWorkerInfo*
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GetInstalling() const;
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ServiceWorkerInfo*
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GetWaiting() const;
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ServiceWorkerInfo*
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GetActive() const;
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// Set the given worker as the evaluating service worker. The worker
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// state is not changed.
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void
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SetEvaluating(ServiceWorkerInfo* aServiceWorker);
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// Remove an existing evaluating worker, if present. The worker will
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// be transitioned to the Redundant state.
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void
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ClearEvaluating();
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// Remove an existing installing worker, if present. The worker will
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// be transitioned to the Redundant state.
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void
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ClearInstalling();
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// Transition the current evaluating worker to be the installing worker. The
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// worker's state is update to Installing.
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void
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TransitionEvaluatingToInstalling();
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// Transition the current installing worker to be the waiting worker. The
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// worker's state is updated to Installed.
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void
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TransitionInstallingToWaiting();
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// Override the current active worker. This is used during browser
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// initialization to load persisted workers. Its also used to propagate
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// active workers across child processes in e10s. This second use will
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// go away once the ServiceWorkerManager moves to the parent process.
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// The worker is transitioned to the Activated state.
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void
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SetActive(ServiceWorkerInfo* aServiceWorker);
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// Transition the current waiting worker to be the new active worker. The
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// worker is updated to the Activating state.
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void
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TransitionWaitingToActive();
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// Determine if the registration is actively performing work.
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bool
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IsIdle() const;
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private:
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enum TransitionType {
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TransitionToNextState = 0,
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Invalidate
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};
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// Queued as a runnable from UpdateRegistrationStateProperties.
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void
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AsyncUpdateRegistrationStateProperties(WhichServiceWorker aWorker, TransitionType aType);
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// Roughly equivalent to [[Update Registration State algorithm]]. Make sure
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// this is called *before* updating SW instances' state, otherwise they
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// may get CC-ed.
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void
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UpdateRegistrationStateProperties(WhichServiceWorker aWorker, TransitionType aType);
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// Used by devtools to track changes to the properties of *nsIServiceWorkerRegistrationInfo*.
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// Note, this doesn't necessarily need to be in sync with the DOM registration objects, but
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// it does need to be called in the same task that changed |mInstallingWorker|,
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// |mWaitingWorker| or |mActiveWorker|.
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void
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NotifyChromeRegistrationListeners();
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};
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} // namespace workers
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_workers_serviceworkerregistrationinfo_h
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