gecko-dev/dom/clients/api/ClientDOMUtil.h

49 lines
1.6 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#ifndef _mozilla_dom_ClientDOMUtil_h
#define _mozilla_dom_ClientDOMUtil_h
#include "mozilla/dom/ClientIPCTypes.h"
#include "mozilla/dom/ClientOpPromise.h"
#include "mozilla/dom/DOMMozPromiseRequestHolder.h"
#include "mozilla/dom/WorkerPrivate.h"
class nsIGlobalObject;
namespace mozilla::dom {
// Utility method to properly execute a ClientManager operation. It
// will properly hold a worker thread alive and avoid executing callbacks
// if the thread is shutting down.
template <typename Func, typename Arg, typename Resolve, typename Reject>
void StartClientManagerOp(Func aFunc, const Arg& aArg, nsIGlobalObject* aGlobal,
Resolve aResolve, Reject aReject) {
MOZ_DIAGNOSTIC_ASSERT(aGlobal);
nsCOMPtr<nsISerialEventTarget> target =
aGlobal->EventTargetFor(TaskCategory::Other);
auto holder =
MakeRefPtr<DOMMozPromiseRequestHolder<ClientOpPromise>>(aGlobal);
aFunc(aArg, target)
->Then(
target, __func__,
[aResolve, holder](const ClientOpResult& aResult) {
holder->Complete();
aResolve(aResult);
},
[aReject, holder](const CopyableErrorResult& aResult) {
holder->Complete();
aReject(aResult);
})
->Track(*holder);
}
} // namespace mozilla::dom
#endif // _mozilla_dom_ClientDOMUtil_h