import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/workers/SharedWorker.h

@@ -0,0 +1,105 @@
+/* -*- 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_workers_sharedworker_h__
+#define mozilla_dom_workers_sharedworker_h__
+
+#include "Workers.h"
+
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/DOMEventTargetHelper.h"
+
+class nsIDOMEvent;
+class nsPIDOMWindowInner;
+
+namespace mozilla {
+class EventChainPreVisitor;
+
+namespace dom {
+class MessagePort;
+}
+} // namespace mozilla
+
+BEGIN_WORKERS_NAMESPACE
+
+class RuntimeService;
+class WorkerPrivate;
+
+class SharedWorker final : public DOMEventTargetHelper
+{
+  friend class RuntimeService;
+
+  typedef mozilla::ErrorResult ErrorResult;
+  typedef mozilla::dom::GlobalObject GlobalObject;
+
+  RefPtr<WorkerPrivate> mWorkerPrivate;
+  RefPtr<MessagePort> mMessagePort;
+  nsTArray<nsCOMPtr<nsIDOMEvent>> mFrozenEvents;
+  bool mFrozen;
+
+public:
+  static already_AddRefed<SharedWorker>
+  Constructor(const GlobalObject& aGlobal, JSContext* aCx,
+              const nsAString& aScriptURL, const Optional<nsAString>& aName,
+              ErrorResult& aRv);
+
+  MessagePort*
+  Port();
+
+  bool
+  IsFrozen() const
+  {
+    return mFrozen;
+  }
+
+  void
+  Freeze();
+
+  void
+  Thaw();
+
+  void
+  QueueEvent(nsIDOMEvent* aEvent);
+
+  void
+  Close();
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SharedWorker, DOMEventTargetHelper)
+
+  IMPL_EVENT_HANDLER(error)
+
+  virtual JSObject*
+  WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+  virtual nsresult
+  PreHandleEvent(EventChainPreVisitor& aVisitor) override;
+
+  WorkerPrivate*
+  GetWorkerPrivate() const
+  {
+    return mWorkerPrivate;
+  }
+
+private:
+  // This class can only be created from the RuntimeService.
+  SharedWorker(nsPIDOMWindowInner* aWindow,
+               WorkerPrivate* aWorkerPrivate,
+               MessagePort* aMessagePort);
+
+  // This class is reference-counted and will be destroyed from Release().
+  ~SharedWorker();
+
+  // Only called by MessagePort.
+  void
+  PostMessage(JSContext* aCx, JS::Handle<JS::Value> aMessage,
+              const Optional<Sequence<JS::Value>>& aTransferable,
+              ErrorResult& aRv);
+};
+
+END_WORKERS_NAMESPACE
+
+#endif // mozilla_dom_workers_sharedworker_h__