gecko-dev/dom/tv/TVServiceFactory.cpp

46 строки
1.2 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#include "mozilla/dom/FakeTVService.h"
#include "mozilla/dom/TVListeners.h"
#include "mozilla/Preferences.h"
#include "nsITVService.h"
#include "nsServiceManagerUtils.h"
#include "TVServiceFactory.h"
namespace mozilla {
namespace dom {
/* static */ already_AddRefed<FakeTVService>
TVServiceFactory::CreateFakeTVService()
{
nsRefPtr<FakeTVService> service = new FakeTVService();
return service.forget();
}
/* static */ already_AddRefed<nsITVService>
TVServiceFactory::AutoCreateTVService()
{
nsresult rv;
nsCOMPtr<nsITVService> service = do_CreateInstance(TV_SERVICE_CONTRACTID);
if (!service) {
// Fallback to the fake service.
service = do_CreateInstance(FAKE_TV_SERVICE_CONTRACTID, &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
}
rv = service->SetSourceListener(new TVSourceListener());
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
return service.forget();
}
} // namespace dom
} // namespace mozilla