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107 lines
2.2 KiB
C++
107 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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_Fetch_h
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#define mozilla_dom_Fetch_h
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#include "mozilla/dom/UnionTypes.h"
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class nsIInputStream;
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namespace mozilla {
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namespace dom {
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class Promise;
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/*
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* Creates an nsIInputStream based on the fetch specifications 'extract a byte
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* stream algorithm' - http://fetch.spec.whatwg.org/#concept-bodyinit-extract.
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* Stores content type in out param aContentType.
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*/
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nsresult
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ExtractByteStreamFromBody(const OwningArrayBufferOrArrayBufferViewOrScalarValueStringOrURLSearchParams& aBodyInit,
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nsIInputStream** aStream,
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nsCString& aContentType);
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/*
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* Non-owning version.
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*/
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nsresult
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ExtractByteStreamFromBody(const ArrayBufferOrArrayBufferViewOrScalarValueStringOrURLSearchParams& aBodyInit,
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nsIInputStream** aStream,
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nsCString& aContentType);
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template <class Derived>
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class FetchBody {
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public:
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bool
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BodyUsed() { return mBodyUsed; }
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already_AddRefed<Promise>
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ArrayBuffer(ErrorResult& aRv)
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{
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return ConsumeBody(CONSUME_ARRAYBUFFER, aRv);
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}
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already_AddRefed<Promise>
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Blob(ErrorResult& aRv)
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{
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return ConsumeBody(CONSUME_BLOB, aRv);
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}
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already_AddRefed<Promise>
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Json(ErrorResult& aRv)
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{
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return ConsumeBody(CONSUME_JSON, aRv);
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}
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already_AddRefed<Promise>
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Text(ErrorResult& aRv)
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{
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return ConsumeBody(CONSUME_TEXT, aRv);
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}
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protected:
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FetchBody()
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: mBodyUsed(false)
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{
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}
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void
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SetBodyUsed()
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{
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mBodyUsed = true;
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}
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void
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SetMimeType(ErrorResult& aRv);
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private:
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enum ConsumeType
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{
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CONSUME_ARRAYBUFFER,
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CONSUME_BLOB,
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// FormData not supported right now,
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CONSUME_JSON,
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CONSUME_TEXT,
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};
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Derived*
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DerivedClass() const
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{
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return static_cast<Derived*>(const_cast<FetchBody*>(this));
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}
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already_AddRefed<Promise>
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ConsumeBody(ConsumeType aType, ErrorResult& aRv);
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bool mBodyUsed;
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nsCString mMimeType;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_Fetch_h
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