forked from mirrors/gecko-dev
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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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#ifndef mozilla_dom_ReadableStreamController_h
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#define mozilla_dom_ReadableStreamController_h
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#include "mozilla/ErrorResult.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsIGlobalObject.h"
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#include "nsISupports.h"
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#include "UnderlyingSourceCallbackHelpers.h"
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namespace mozilla::dom {
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struct ReadRequest;
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class ReadableStream;
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class ReadableStreamDefaultController;
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class ReadableByteStreamController;
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class ReadableStreamController : public nsISupports {
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_CLASS(ReadableStreamController)
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ReadableStreamController(nsIGlobalObject* aGlobal);
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nsIGlobalObject* GetParentObject() const { return mGlobal; }
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virtual bool IsDefault() = 0;
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virtual bool IsByte() = 0;
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virtual ReadableStreamDefaultController* AsDefault() = 0;
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virtual ReadableByteStreamController* AsByte() = 0;
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MOZ_CAN_RUN_SCRIPT
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virtual already_AddRefed<Promise> CancelSteps(JSContext* aCx,
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JS::Handle<JS::Value> aReason,
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ErrorResult& aRv) = 0;
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MOZ_CAN_RUN_SCRIPT
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virtual void PullSteps(JSContext* aCx, ReadRequest* aReadRequest,
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ErrorResult& aRv) = 0;
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// No JS implementable UnderlyingSource callback exists for this.
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virtual void ReleaseSteps() = 0;
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UnderlyingSourceAlgorithmsBase* GetAlgorithms() const { return mAlgorithms; }
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void SetAlgorithms(UnderlyingSourceAlgorithmsBase& aAlgorithms) {
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mAlgorithms = &aAlgorithms;
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}
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void ClearAlgorithms() {
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MOZ_ASSERT(mAlgorithms);
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mAlgorithms->ReleaseObjects();
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mAlgorithms = nullptr;
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}
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ReadableStream* Stream() const { return mStream; }
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void SetStream(ReadableStream* aStream);
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protected:
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nsCOMPtr<nsIGlobalObject> mGlobal;
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// The algorithms for the underlying source
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RefPtr<UnderlyingSourceAlgorithmsBase> mAlgorithms;
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RefPtr<ReadableStream> mStream;
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virtual ~ReadableStreamController() = default;
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};
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} // namespace mozilla::dom
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#endif
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