gecko/dom/fetch/Fetch.h

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