зеркало из https://github.com/mozilla/gecko-dev.git
91 строка
3.7 KiB
C++
91 строка
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "ClientHandleOpParent.h"
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#include "ClientHandleParent.h"
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#include "ClientSourceParent.h"
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#include "mozilla/dom/ipc/StructuredCloneData.h"
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#include "mozilla/dom/PClientManagerParent.h"
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namespace mozilla::dom {
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ClientSourceParent* ClientHandleOpParent::GetSource() const {
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auto handle = static_cast<ClientHandleParent*>(Manager());
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return handle->GetSource();
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}
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void ClientHandleOpParent::ActorDestroy(ActorDestroyReason aReason) {
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mPromiseRequestHolder.DisconnectIfExists();
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mSourcePromiseRequestHolder.DisconnectIfExists();
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}
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void ClientHandleOpParent::Init(ClientOpConstructorArgs&& aArgs) {
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auto handle = static_cast<ClientHandleParent*>(Manager());
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handle->EnsureSource()
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->Then(
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GetCurrentSerialEventTarget(), __func__,
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[this, args = std::move(aArgs)](ClientSourceParent* source) mutable {
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mSourcePromiseRequestHolder.Complete();
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RefPtr<ClientOpPromise> p;
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// ClientPostMessageArgs can contain PBlob actors. This means we
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// can't just forward the args from one PBackground manager to
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// another. Instead, unpack the structured clone data and repack
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// it into a new set of arguments.
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if (args.type() ==
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ClientOpConstructorArgs::TClientPostMessageArgs) {
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const ClientPostMessageArgs& orig =
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args.get_ClientPostMessageArgs();
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ClientPostMessageArgs rebuild;
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rebuild.serviceWorker() = orig.serviceWorker();
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ipc::StructuredCloneData data;
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data.BorrowFromClonedMessageDataForBackgroundParent(
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orig.clonedData());
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if (!data.BuildClonedMessageDataForBackgroundParent(
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source->Manager()->Manager(), rebuild.clonedData())) {
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CopyableErrorResult rv;
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rv.ThrowAbortError("Aborting client operation");
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Unused << PClientHandleOpParent::Send__delete__(this, rv);
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return;
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}
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p = source->StartOp(std::move(rebuild));
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}
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// Other argument types can just be forwarded straight through.
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else {
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p = source->StartOp(std::move(args));
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}
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// Capturing 'this' is safe here because we disconnect the promise
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// in ActorDestroy() which ensures neither lambda is called if the
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// actor is destroyed before the source operation completes.
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p->Then(
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GetCurrentSerialEventTarget(), __func__,
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[this](const ClientOpResult& aResult) {
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mPromiseRequestHolder.Complete();
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Unused << PClientHandleOpParent::Send__delete__(this,
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aResult);
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},
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[this](const CopyableErrorResult& aRv) {
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mPromiseRequestHolder.Complete();
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Unused << PClientHandleOpParent::Send__delete__(this, aRv);
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})
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->Track(mPromiseRequestHolder);
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},
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[=](const CopyableErrorResult& failure) {
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mSourcePromiseRequestHolder.Complete();
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Unused << PClientHandleOpParent::Send__delete__(this, failure);
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return;
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})
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->Track(mSourcePromiseRequestHolder);
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}
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} // namespace mozilla::dom
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