NotifyUtilsCommon.cpp (1424B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=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 "mozilla/dom/quota/NotifyUtilsCommon.h" 8 9 #include "mozilla/Services.h" 10 #include "mozilla/dom/quota/QuotaCommon.h" 11 #include "mozilla/dom/quota/ResultExtensions.h" 12 #include "nsCOMPtr.h" 13 #include "nsError.h" 14 #include "nsIObserverService.h" 15 #include "nsThreadUtils.h" 16 17 namespace mozilla::dom::quota { 18 19 void NotifyObserversOnMainThread( 20 const char* aTopic, 21 std::function<already_AddRefed<nsISupports>()>&& aSubjectGetter) { 22 auto mainThreadFunction = [topic = aTopic, 23 subjectGetter = std::move(aSubjectGetter)]() { 24 nsCOMPtr<nsIObserverService> observerService = 25 mozilla::services::GetObserverService(); 26 QM_TRY(MOZ_TO_RESULT(observerService), QM_VOID); 27 28 nsCOMPtr<nsISupports> subject; 29 if (subjectGetter) { 30 subject = subjectGetter(); 31 } 32 33 observerService->NotifyObservers(subject, topic, u""); 34 }; 35 36 MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread( 37 NS_NewRunnableFunction("dom::quota::NotifyObserversOnMainThread", 38 std::move(mainThreadFunction)))); 39 } 40 41 } // namespace mozilla::dom::quota