dom/requestsync/RequestSyncWifiService.cpp

   1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
   2 /* vim: set ts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "RequestSyncWifiService.h"
   8 #include "mozilla/ClearOnShutdown.h"
   9 #include "mozilla/Services.h"
  10 #include "mozilla/StaticPtr.h"
  11 #include "nsIObserverService.h"
  12
  13 namespace mozilla {
  14 namespace dom {
  15
  16 using namespace hal;
  17
  18 NS_IMPL_ISUPPORTS0(RequestSyncWifiService)
  19
  20 namespace {
  21
  22 StaticRefPtr<RequestSyncWifiService> sService;
  23
  24 } // anonymous namespace
  25
  26 /* static */ void
  27 RequestSyncWifiService::Init()
  28 {
  29   nsRefPtr<RequestSyncWifiService> service = GetInstance();
  30   if (!service) {
  31     NS_WARNING("Failed to initialize RequestSyncWifiService.");
  32   }
  33 }
  34
  35 /* static */ already_AddRefed<RequestSyncWifiService>
  36 RequestSyncWifiService::GetInstance()
  37 {
  38   if (!sService) {
  39     sService = new RequestSyncWifiService();
  40     hal::RegisterNetworkObserver(sService);
  41     ClearOnShutdown(&sService);
  42   }
  43
  44   nsRefPtr<RequestSyncWifiService> service = sService.get();
  45   return service.forget();
  46 }
  47
  48 void
  49 RequestSyncWifiService::Notify(const hal::NetworkInformation& aNetworkInfo)
  50 {
  51   bool isWifi = aNetworkInfo.isWifi();
  52   if (isWifi == mIsWifi) {
  53     return;
  54   }
  55
  56   mIsWifi = isWifi;
  57
  58   nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
  59   if (obs) {
  60     obs->NotifyObservers(nullptr, "wifi-state-changed",
  61                          mIsWifi ? MOZ_UTF16("enabled") :
  62                                    MOZ_UTF16("disabled"));
  63   }
  64 }
  65
  66 } // dom namespace
  67 } // mozilla namespace