src/third_party/WebKit/Source/modules/serviceworkers/NavigatorServiceWorker.cpp

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "config.h"
   6 #include "modules/serviceworkers/NavigatorServiceWorker.h"
   7
   8 #include "core/frame/Navigator.h"
   9 #include "modules/serviceworkers/ServiceWorkerContainer.h"
  10
  11 namespace WebCore {
  12
  13 NavigatorServiceWorker::NavigatorServiceWorker(Navigator& navigator)
  14     : DOMWindowProperty(navigator.frame())
  15 {
  16 }
  17
  18 NavigatorServiceWorker::~NavigatorServiceWorker()
  19 {
  20 }
  21
  22 NavigatorServiceWorker& NavigatorServiceWorker::from(Navigator& navigator)
  23 {
  24     NavigatorServiceWorker* supplement = toNavigatorServiceWorker(navigator);
  25     if (!supplement) {
  26         supplement = new NavigatorServiceWorker(navigator);
  27         provideTo(navigator, supplementName(), adoptPtrWillBeNoop(supplement));
  28     }
  29     return *supplement;
  30 }
  31
  32 NavigatorServiceWorker* NavigatorServiceWorker::toNavigatorServiceWorker(Navigator& navigator)
  33 {
  34     return static_cast<NavigatorServiceWorker*>(WillBeHeapSupplement<Navigator>::from(navigator, supplementName()));
  35 }
  36
  37 const char* NavigatorServiceWorker::supplementName()
  38 {
  39     return "NavigatorServiceWorker";
  40 }
  41
  42 ServiceWorkerContainer* NavigatorServiceWorker::serviceWorker(ExecutionContext* executionContext, Navigator& navigator)
  43 {
  44     return NavigatorServiceWorker::from(navigator).serviceWorker(executionContext);
  45 }
  46
  47 ServiceWorkerContainer* NavigatorServiceWorker::serviceWorker(ExecutionContext* executionContext)
  48 {
  49     if (!m_serviceWorker && frame())
  50         m_serviceWorker = ServiceWorkerContainer::create(executionContext);
  51     return m_serviceWorker.get();
  52 }
  53
  54 void NavigatorServiceWorker::willDetachGlobalObjectFromFrame()
  55 {
  56     m_serviceWorker->detachClient();
  57     m_serviceWorker = nullptr;
  58 }
  59
  60 } // namespace WebCore