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/*
* Copyright (C) 2017-2020 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 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. ``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. OR
* 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 "ExceptionOr.h"
#include "JSDOMBinding.h"
#include "JSDOMConvert.h"
#include "JSDOMGuardedObject.h"
#include "JSReadableStream.h"
namespace WebCore {
class ReadableStreamSink;
class ReadableStreamSource;
class ReadableStream final : public DOMGuarded<JSReadableStream> {
public:
static Ref<ReadableStream> create(JSDOMGlobalObject& globalObject, JSReadableStream& readableStream) { return adoptRef(*new ReadableStream(globalObject, readableStream)); }
static ExceptionOr<Ref<ReadableStream>> create(JSC::JSGlobalObject&, RefPtr<ReadableStreamSource>&&);
static ExceptionOr<Ref<ReadableStream>> create(JSC::JSGlobalObject& lexicalGlobalObject, RefPtr<ReadableStreamSource>&& source, JSC::JSValue nativePtr);
WEBCORE_EXPORT static bool isDisturbed(JSC::JSGlobalObject*, JSReadableStream*);
WEBCORE_EXPORT static bool isLocked(JSC::JSGlobalObject*, JSReadableStream*);
std::optional<std::pair<Ref<ReadableStream>, Ref<ReadableStream>>> tee();
void cancel(const Exception&);
void lock();
void pipeTo(ReadableStreamSink&);
bool isLocked() const;
bool isDisturbed() const;
JSReadableStream* readableStream() const
{
return guarded();
}
private:
ReadableStream(JSDOMGlobalObject& globalObject, JSReadableStream& readableStream)
: DOMGuarded<JSReadableStream>(globalObject, readableStream)
{
}
};
struct JSReadableStreamWrapperConverter {
static RefPtr<ReadableStream> toWrapped(JSC::JSGlobalObject& lexicalGlobalObject, JSC::JSValue value)
{
auto* globalObject = JSC::jsDynamicCast<JSDOMGlobalObject*>(&lexicalGlobalObject);
if (!globalObject)
return nullptr;
auto* readableStream = JSC::jsDynamicCast<JSReadableStream*>(value);
if (!readableStream)
return nullptr;
return ReadableStream::create(*globalObject, *readableStream);
}
};
template<> struct JSDOMWrapperConverterTraits<ReadableStream> {
using WrapperClass = JSReadableStreamWrapperConverter;
using ToWrappedReturnType = RefPtr<ReadableStream>;
static constexpr bool needsState = true;
};
inline JSC::JSValue toJS(JSC::JSGlobalObject*, JSC::JSGlobalObject*, ReadableStream* stream)
{
return stream ? stream->readableStream() : JSC::jsUndefined();
}
inline JSC::JSValue toJS(JSC::JSGlobalObject*, JSC::JSGlobalObject*, ReadableStream& stream)
{
return stream.readableStream();
}
inline JSC::JSValue toJSNewlyCreated(JSC::JSGlobalObject*, JSDOMGlobalObject*, Ref<ReadableStream>&& stream)
{
return stream->readableStream();
}
}
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