From f66babd8b8368ada3e5aa29cdef1c77291ee4ddd Mon Sep 17 00:00:00 2001
From: Moonchild <moonchild@palemoon.org>
Date: Sat, 12 Feb 2022 17:47:03 +0000
Subject: Create the Goanna Runtime Environment

---
 dom/workers/ServiceWorkerRegistrationInfo.h | 184 ++++++++++++++++++++++++++++
 1 file changed, 184 insertions(+)
 create mode 100644 dom/workers/ServiceWorkerRegistrationInfo.h

(limited to 'dom/workers/ServiceWorkerRegistrationInfo.h')

diff --git a/dom/workers/ServiceWorkerRegistrationInfo.h b/dom/workers/ServiceWorkerRegistrationInfo.h
new file mode 100644
index 000000000..54eda6266
--- /dev/null
+++ b/dom/workers/ServiceWorkerRegistrationInfo.h
@@ -0,0 +1,184 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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_serviceworkerregistrationinfo_h
+#define mozilla_dom_workers_serviceworkerregistrationinfo_h
+
+#include "mozilla/dom/workers/ServiceWorkerInfo.h"
+#include "mozilla/dom/workers/ServiceWorkerCommon.h"
+
+namespace mozilla {
+namespace dom {
+namespace workers {
+
+class ServiceWorkerRegistrationInfo final
+  : public nsIServiceWorkerRegistrationInfo
+{
+  uint32_t mControlledDocumentsCounter;
+
+  enum
+  {
+    NoUpdate,
+    NeedTimeCheckAndUpdate,
+    NeedUpdate
+  } mUpdateState;
+
+  uint64_t mLastUpdateCheckTime;
+
+  RefPtr<ServiceWorkerInfo> mEvaluatingWorker;
+  RefPtr<ServiceWorkerInfo> mActiveWorker;
+  RefPtr<ServiceWorkerInfo> mWaitingWorker;
+  RefPtr<ServiceWorkerInfo> mInstallingWorker;
+
+  virtual ~ServiceWorkerRegistrationInfo();
+
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSISERVICEWORKERREGISTRATIONINFO
+
+  const nsCString mScope;
+
+  nsCOMPtr<nsIPrincipal> mPrincipal;
+
+  nsTArray<nsCOMPtr<nsIServiceWorkerRegistrationInfoListener>> mListeners;
+
+  // When unregister() is called on a registration, it is not immediately
+  // removed since documents may be controlled. It is marked as
+  // pendingUninstall and when all controlling documents go away, removed.
+  bool mPendingUninstall;
+
+  ServiceWorkerRegistrationInfo(const nsACString& aScope,
+                                nsIPrincipal* aPrincipal);
+
+  already_AddRefed<ServiceWorkerInfo>
+  Newest() const
+  {
+    RefPtr<ServiceWorkerInfo> newest;
+    if (mInstallingWorker) {
+      newest = mInstallingWorker;
+    } else if (mWaitingWorker) {
+      newest = mWaitingWorker;
+    } else {
+      newest = mActiveWorker;
+    }
+
+    return newest.forget();
+  }
+
+  already_AddRefed<ServiceWorkerInfo>
+  GetServiceWorkerInfoById(uint64_t aId);
+
+  void
+  StartControllingADocument()
+  {
+    ++mControlledDocumentsCounter;
+  }
+
+  void
+  StopControllingADocument()
+  {
+    MOZ_ASSERT(mControlledDocumentsCounter);
+    --mControlledDocumentsCounter;
+  }
+
+  bool
+  IsControllingDocuments() const
+  {
+    return mActiveWorker && mControlledDocumentsCounter;
+  }
+
+  void
+  Clear();
+
+  void
+  TryToActivateAsync();
+
+  void
+  TryToActivate();
+
+  void
+  Activate();
+
+  void
+  FinishActivate(bool aSuccess);
+
+  void
+  RefreshLastUpdateCheckTime();
+
+  bool
+  IsLastUpdateCheckTimeOverOneDay() const;
+
+  void
+  NotifyListenersOnChange(WhichServiceWorker aChangedWorkers);
+
+  void
+  MaybeScheduleTimeCheckAndUpdate();
+
+  void
+  MaybeScheduleUpdate();
+
+  bool
+  CheckAndClearIfUpdateNeeded();
+
+  ServiceWorkerInfo*
+  GetEvaluating() const;
+
+  ServiceWorkerInfo*
+  GetInstalling() const;
+
+  ServiceWorkerInfo*
+  GetWaiting() const;
+
+  ServiceWorkerInfo*
+  GetActive() const;
+
+  // Set the given worker as the evaluating service worker.  The worker
+  // state is not changed.
+  void
+  SetEvaluating(ServiceWorkerInfo* aServiceWorker);
+
+  // Remove an existing evaluating worker, if present.  The worker will
+  // be transitioned to the Redundant state.
+  void
+  ClearEvaluating();
+
+  // Remove an existing installing worker, if present.  The worker will
+  // be transitioned to the Redundant state.
+  void
+  ClearInstalling();
+
+  // Transition the current evaluating worker to be the installing worker.  The
+  // worker's state is update to Installing.
+  void
+  TransitionEvaluatingToInstalling();
+
+  // Transition the current installing worker to be the waiting worker.  The
+  // worker's state is updated to Installed.
+  void
+  TransitionInstallingToWaiting();
+
+  // Override the current active worker.  This is used during browser
+  // initialization to load persisted workers.  Its also used to propagate
+  // active workers across child processes in e10s.  This second use will
+  // go away once the ServiceWorkerManager moves to the parent process.
+  // The worker is transitioned to the Activated state.
+  void
+  SetActive(ServiceWorkerInfo* aServiceWorker);
+
+  // Transition the current waiting worker to be the new active worker.  The
+  // worker is updated to the Activating state.
+  void
+  TransitionWaitingToActive();
+
+  // Determine if the registration is actively performing work.
+  bool
+  IsIdle() const;
+};
+
+} // namespace workers
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_workers_serviceworkerregistrationinfo_h
-- 
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