1 files changed, 143 insertions, 0 deletions
diff --git a/dom/serviceworkers/ServiceWorkerContainer.h b/dom/serviceworkers/ServiceWorkerContainer.h
new file mode 100644
index 0000000000..3a5dd5fa5d
--- /dev/null
+++ b/dom/serviceworkers/ServiceWorkerContainer.h
@@ -0,0 +1,143 @@
+/* -*- 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_serviceworkercontainer_h__
+#define mozilla_dom_serviceworkercontainer_h__
+
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/ErrorResult.h"
+#include "mozilla/dom/ServiceWorkerUtils.h"
+
+class nsIGlobalWindow;
+
+namespace mozilla::dom {
+
+class ClientPostMessageArgs;
+struct MessageEventInit;
+class Promise;
+struct RegistrationOptions;
+class ServiceWorker;
+class ServiceWorkerContainerChild;
+
+// Lightweight serviceWorker APIs collection.
+class ServiceWorkerContainer final : public DOMEventTargetHelper {
+ public:
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ServiceWorkerContainer,
+                                           DOMEventTargetHelper)
+
+  IMPL_EVENT_HANDLER(controllerchange)
+  IMPL_EVENT_HANDLER(messageerror)
+
+  // Almost a manual expansion of IMPL_EVENT_HANDLER(message), but
+  // with the additional StartMessages() when setting the handler, as
+  // required by the spec.
+  inline mozilla::dom::EventHandlerNonNull* GetOnmessage() {
+    return GetEventHandler(nsGkAtoms::onmessage);
+  }
+  inline void SetOnmessage(mozilla::dom::EventHandlerNonNull* aCallback) {
+    SetEventHandler(nsGkAtoms::onmessage, aCallback);
+    StartMessages();
+  }
+
+  static bool IsEnabled(JSContext* aCx, JSObject* aGlobal);
+
+  static already_AddRefed<ServiceWorkerContainer> Create(
+      nsIGlobalObject* aGlobal);
+
+  virtual JSObject* WrapObject(JSContext* aCx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+
+  already_AddRefed<Promise> Register(const nsAString& aScriptURL,
+                                     const RegistrationOptions& aOptions,
+                                     const CallerType aCallerType,
+                                     ErrorResult& aRv);
+
+  already_AddRefed<ServiceWorker> GetController();
+
+  already_AddRefed<Promise> GetRegistration(const nsAString& aDocumentURL,
+                                            ErrorResult& aRv);
+
+  already_AddRefed<Promise> GetRegistrations(ErrorResult& aRv);
+
+  void StartMessages();
+
+  Promise* GetReady(ErrorResult& aRv);
+
+  // Testing only.
+  void GetScopeForUrl(const nsAString& aUrl, nsString& aScope,
+                      ErrorResult& aRv);
+
+  // DOMEventTargetHelper
+  void DisconnectFromOwner() override;
+
+  // Invalidates |mControllerWorker| and dispatches a "controllerchange"
+  // event.
+  void ControllerChanged(ErrorResult& aRv);
+
+  void ReceiveMessage(const ClientPostMessageArgs& aArgs);
+
+  void RevokeActor(ServiceWorkerContainerChild* aActor);
+
+ private:
+  explicit ServiceWorkerContainer(nsIGlobalObject* aGlobal);
+
+  ~ServiceWorkerContainer();
+
+  // Utility method to get the global if its present and if certain
+  // additional validaty checks pass.  One of these additional checks
+  // verifies the global can access storage.  Since storage access can
+  // vary based on user settings we want to often provide some error
+  // message if the storage check fails.  This method takes an optional
+  // callback that can be used to report the storage failure to the
+  // devtools console.
+  nsIGlobalObject* GetGlobalIfValid(
+      ErrorResult& aRv,
+      const std::function<void(Document*)>&& aStorageFailureCB = nullptr) const;
+
+  struct ReceivedMessage;
+
+  // Dispatch a Runnable that dispatches the given message on this
+  // object. When the owner of this object is a Window, the Runnable
+  // is dispatched on the corresponding TabGroup.
+  void EnqueueReceivedMessageDispatch(RefPtr<ReceivedMessage> aMessage);
+
+  template <typename F>
+  void RunWithJSContext(F&& aCallable);
+
+  void DispatchMessage(RefPtr<ReceivedMessage> aMessage);
+
+  // When it fails, returning boolean means whether it's because deserailization
+  // failed or not.
+  static Result<Ok, bool> FillInMessageEventInit(JSContext* aCx,
+                                                 nsIGlobalObject* aGlobal,
+                                                 ReceivedMessage& aMessage,
+                                                 MessageEventInit& aInit,
+                                                 ErrorResult& aRv);
+
+  void Shutdown();
+
+  RefPtr<ServiceWorkerContainerChild> mActor;
+  bool mShutdown;
+
+  // This only changes when a worker hijacks everything in its scope by calling
+  // claim.
+  RefPtr<ServiceWorker> mControllerWorker;
+
+  RefPtr<Promise> mReadyPromise;
+  MozPromiseRequestHolder<ServiceWorkerRegistrationPromise> mReadyPromiseHolder;
+
+  // Set after StartMessages() has been called.
+  bool mMessagesStarted = false;
+
+  // Queue holding messages posted from service worker as long as
+  // StartMessages() hasn't been called.
+  nsTArray<RefPtr<ReceivedMessage>> mPendingMessages;
+};
+
+}  // namespace mozilla::dom
+
+#endif /* mozilla_dom_serviceworkercontainer_h__ */