dom/workers/ServiceWorker.h

   1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef mozilla_dom_workers_serviceworker_h__
   7 #define mozilla_dom_workers_serviceworker_h__
   8
   9 #include "mozilla/DOMEventTargetHelper.h"
  10 #include "mozilla/dom/BindingDeclarations.h"
  11 #include "mozilla/dom/ServiceWorkerBinding.h" // For ServiceWorkerState.
  12
  13 class nsPIDOMWindow;
  14
  15 namespace mozilla {
  16 namespace dom {
  17
  18 class Promise;
  19
  20 namespace workers {
  21
  22 class SharedWorker;
  23
  24 class ServiceWorker MOZ_FINAL : public DOMEventTargetHelper
  25 {
  26   friend class RuntimeService;
  27 public:
  28   NS_DECL_ISUPPORTS_INHERITED
  29   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ServiceWorker, DOMEventTargetHelper)
  30
  31   IMPL_EVENT_HANDLER(statechange)
  32   IMPL_EVENT_HANDLER(error)
  33
  34   virtual JSObject*
  35   WrapObject(JSContext* aCx) MOZ_OVERRIDE;
  36
  37   ServiceWorkerState
  38   State() const
  39   {
  40     return mState;
  41   }
  42
  43   void
  44   GetScope(nsString& aScope) const
  45   {
  46     aScope = mScope;
  47   }
  48
  49   void
  50   GetUrl(nsString& aURL) const
  51   {
  52     aURL = mURL;
  53   }
  54
  55   WorkerPrivate*
  56   GetWorkerPrivate() const;
  57
  58 private:
  59   // This class can only be created from the RuntimeService.
  60   ServiceWorker(nsPIDOMWindow* aWindow, SharedWorker* aSharedWorker);
  61
  62   // This class is reference-counted and will be destroyed from Release().
  63   ~ServiceWorker();
  64
  65   ServiceWorkerState mState;
  66   nsString mScope;
  67   nsString mURL;
  68
  69   // To allow ServiceWorkers to potentially drop the backing DOMEventTargetHelper and
  70   // re-instantiate it later, they simply own a SharedWorker member that
  71   // can be released and recreated as required rather than re-implement some of
  72   // the SharedWorker logic.
  73   nsRefPtr<SharedWorker> mSharedWorker;
  74 };
  75
  76 } // namespace workers
  77 } // namespace dom
  78 } // namespace mozilla
  79
  80 #endif // mozilla_dom_workers_serviceworker_h__