dom/tv/TVServiceFactory.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   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 #include "mozilla/dom/FakeTVService.h"
   7 #include "mozilla/dom/TVListeners.h"
   8 #include "mozilla/Preferences.h"
   9 #include "nsITVService.h"
  10 #include "nsServiceManagerUtils.h"
  11 #include "TVServiceFactory.h"
  12
  13 namespace mozilla {
  14 namespace dom {
  15
  16 /* static */ already_AddRefed<FakeTVService>
  17 TVServiceFactory::CreateFakeTVService()
  18 {
  19   nsRefPtr<FakeTVService> service = new FakeTVService();
  20   return service.forget();
  21 }
  22
  23 /* static */ already_AddRefed<nsITVService>
  24 TVServiceFactory::AutoCreateTVService()
  25 {
  26   nsresult rv;
  27   nsCOMPtr<nsITVService> service = do_CreateInstance(TV_SERVICE_CONTRACTID);
  28   if (!service) {
  29     // Fallback to the fake service.
  30     service = do_CreateInstance(FAKE_TV_SERVICE_CONTRACTID, &rv);
  31     if (NS_WARN_IF(NS_FAILED(rv))) {
  32       return nullptr;
  33     }
  34   }
  35
  36   rv = service->SetSourceListener(new TVSourceListener());
  37   if (NS_WARN_IF(NS_FAILED(rv))) {
  38     return nullptr;
  39   }
  40
  41   return service.forget();
  42 }
  43
  44 } // namespace dom
  45 } // namespace mozilla