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/*
* Copyright (C) 2016 Canon Inc.
* Copyright (C) 2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted, provided that the following conditions
* are required to be met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY CANON INC. AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL CANON INC. AND ITS CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "ReadableStreamSource.h"
#include <WebCore/ActiveDOMObject.h>
namespace JSC {
class ArrayBuffer;
};
namespace WebCore {
class DOMPromise;
class FetchBodyOwner;
class ReadableByteStreamController;
class FetchBodySource final : public RefCounted<FetchBodySource> {
public:
static std::pair<Ref<FetchBodySource>, Ref<RefCountedReadableStreamSource>> createNonByteSource(FetchBodyOwner&);
static Ref<FetchBodySource> createByteSource(FetchBodyOwner&);
~FetchBodySource();
bool enqueue(RefPtr<JSC::ArrayBuffer>&&);
void close();
void error(const Exception&);
bool isPulling() const;
bool isCancelling() const;
void resolvePullPromise();
void detach();
void setByteController(ReadableByteStreamController&);
Ref<DOMPromise> pull(JSDOMGlobalObject&, ReadableByteStreamController&);
Ref<DOMPromise> cancel(JSDOMGlobalObject&, ReadableByteStreamController&, std::optional<JSC::JSValue>&&);
private:
class NonByteSource;
FetchBodySource(FetchBodyOwner&, RefPtr<NonByteSource>&& = { });
class NonByteSource : public RefCountedReadableStreamSource {
public:
static Ref<NonByteSource> create(FetchBodyOwner& owner) { return adoptRef(*new NonByteSource(owner)); }
bool enqueue(RefPtr<JSC::ArrayBuffer>&& chunk) { return controller().enqueue(WTFMove(chunk)); }
void close();
void error(const Exception&);
bool isCancelling() const { return m_isCancelling; }
void resolvePullPromise() { pullFinished(); }
void detach() { m_bodyOwner = nullptr; }
private:
explicit NonByteSource(FetchBodyOwner&);
void doStart() final;
void doPull() final;
void doCancel(JSC::JSValue) final;
void setActive() final;
void setInactive() final;
WeakPtr<FetchBodyOwner> m_bodyOwner;
bool m_isCancelling { false };
#if ASSERT_ENABLED
bool m_isClosed { false };
#endif
RefPtr<ActiveDOMObject::PendingActivity<FetchBodyOwner>> m_pendingActivity;
};
WeakPtr<FetchBodyOwner> m_bodyOwner;
bool m_isCancelling { false };
bool m_isPulling { false };
const RefPtr<NonByteSource> m_nonByteSource;
WeakPtr<ReadableByteStreamController> m_byteController;
RefPtr<DeferredPromise> m_pullPromise;
};
} // namespace WebCore
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