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49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
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/* -*- 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_ReadIntoRequest_h
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#define mozilla_dom_ReadIntoRequest_h
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#include "js/TypeDecls.h"
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#include "js/Value.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/LinkedList.h"
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#include "mozilla/RefPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsISupportsImpl.h"
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namespace mozilla::dom {
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// This list element needs to be cycle collected by owning structures.
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struct ReadIntoRequest : public nsISupports,
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public LinkedListElement<RefPtr<ReadIntoRequest>> {
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_CLASS(ReadIntoRequest)
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// An algorithm taking a chunk, called when a chunk is available for reading
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virtual void ChunkSteps(JSContext* aCx, JS::Handle<JS::Value> aChunk,
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ErrorResult& aRv) = 0;
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// An algorithm taking a chunk or undefined, called when no chunks are
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// available because the stream is closed
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MOZ_CAN_RUN_SCRIPT
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virtual void CloseSteps(JSContext* aCx, JS::Handle<JS::Value> aChunk,
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ErrorResult& aRv) = 0;
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// An algorithm taking a JavaScript value, called when no chunks are available
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// because the stream is errored
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virtual void ErrorSteps(JSContext* aCx, JS::Handle<JS::Value> e,
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ErrorResult& aRv) = 0;
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protected:
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virtual ~ReadIntoRequest() = default;
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};
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} // namespace mozilla::dom
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#endif
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