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/* -*- 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_cache_CacheOpChild_h
#define mozilla_dom_cache_CacheOpChild_h
#include "mozilla/InitializedOnce.h"
#include "mozilla/RefPtr.h"
#include "mozilla/dom/cache/ActorChild.h"
#include "mozilla/dom/cache/BoundStorageKey.h"
#include "mozilla/dom/cache/PCacheOpChild.h"
#include "mozilla/dom/cache/TypeUtils.h"
class nsIGlobalObject;
namespace mozilla::dom {
class Promise;
namespace cache {
class CacheOpChild final : public PCacheOpChild,
public CacheActorChild,
public TypeUtils {
friend class CacheChild;
friend class CacheStorageChild;
friend class PCacheOpChild;
public:
NS_INLINE_DECL_REFCOUNTING(CacheOpChild, override)
private:
// CacheOpChild can be used by Cache, CacheStorage and BoundStorageKey APIs.
// It can handle two promise types; where Cache works with dom::Promise,
// BoundStorageKey APIs works with MozPromise (represented by
// CacheStoragePromise below)
using PromiseType =
Variant<RefPtr<mozilla::dom::Promise>, RefPtr<CacheStoragePromise>>;
template <typename T>
struct PromiseTrait;
// This class must be constructed by CacheChild or CacheStorageChild using
// their ExecuteOp() factory method.
CacheOpChild(SafeRefPtr<CacheWorkerRef> aWorkerRef, nsIGlobalObject* aGlobal,
nsISupports* aParent, RefPtr<Promise>& aPromise,
ActorChild* aParentActor);
// Below overload is used by BoundStorageKey APIs; passing in
// CacheStoragePromise
CacheOpChild(SafeRefPtr<CacheWorkerRef> aWorkerRef, nsIGlobalObject* aGlobal,
nsISupports* aParent, RefPtr<CacheStoragePromise>& aPromise,
ActorChild* aParentActor);
~CacheOpChild();
// PCacheOpChild methods
virtual void ActorDestroy(ActorDestroyReason aReason) override;
mozilla::ipc::IPCResult Recv__delete__(ErrorResult&& aRv,
const CacheOpResult& aResult);
// ActorChild methods
virtual void StartDestroy() override;
// TypeUtils methods
virtual nsIGlobalObject* GetGlobalObject() const override;
#ifdef DEBUG
virtual void AssertOwningThread() const override;
#endif
// Utility methods
/* Generic method to handle all response types, formats responses before
* resolving for the underlying promises */
template <CacheOpResult::Type OP_TYPE, typename TResponse>
void HandleAndSettle(TResponse&& aRes);
// generic settle overload which routes the control to one of two
// SettlePromise method overloads below depending if we are resolving for
// native JS promise vs MozPromise
template <CacheOpResult::Type OP_TYPE, typename ResultType>
void Settle(ResultType&& aRes, ErrorResult&& aRv = ErrorResult(NS_OK));
// settles promise for BoundStorageKeyCache; which is of type MozPromise
template <CacheOpResult::Type OP_TYPE, typename ResultType>
void SettlePromise(ResultType&& aRes, ErrorResult&& aRv,
const RefPtr<CacheStoragePromise>& aThePromise);
// settles promise for cache, which is of type dom::Promise
template <typename CacheOpResult::Type OP_TYPE, typename ResultType>
void SettlePromise(ResultType&& aRes, ErrorResult&& aRv,
const RefPtr<Promise>& aThePromise);
nsCOMPtr<nsIGlobalObject> mGlobal;
// Hold the parent Cache or CacheStorage object alive until this async
// operation completes.
nsCOMPtr<nsISupports> mParent;
LazyInitializedOnceEarlyDestructible<const PromiseType> mPromise;
ActorChild* mParentActor;
};
} // namespace cache
} // namespace mozilla::dom
#endif // mozilla_dom_cache_CacheOpChild_h
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