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// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_ENCODING_TEXT_DECODER_STREAM_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_ENCODING_TEXT_DECODER_STREAM_H_
#include "third_party/blink/renderer/bindings/core/v8/script_value.h"
#include "third_party/blink/renderer/core/streams/transform_stream.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/bindings/trace_wrapper_member.h"
#include "third_party/blink/renderer/platform/wtf/text/text_encoding.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace blink {
class ExceptionState;
class ScriptState;
class TextDecoderOptions;
class Visitor;
// Implements the TextDecoderStream interface as specified at
// https://encoding.spec.whatwg.org/#interface-textdecoderstream.
// Converts a stream of binary data in the form of BufferSource chunks to a
// stream of text data in the form of string chunks. After construction
// functionality is delegated to the owner TransformStream.
class TextDecoderStream final : public ScriptWrappable {
DEFINE_WRAPPERTYPEINFO();
public:
static TextDecoderStream* Create(ScriptState*,
const String& label,
const TextDecoderOptions*,
ExceptionState&);
~TextDecoderStream() override;
// From text_decoder_stream.idl
String encoding() const;
bool fatal() const { return fatal_; }
bool ignoreBOM() const { return ignore_bom_; }
ReadableStream* readable() const;
ScriptValue writable(ScriptState*, ExceptionState&) const;
void Trace(Visitor* visitor) override;
private:
class Transformer;
TextDecoderStream(ScriptState*,
const WTF::TextEncoding&,
const TextDecoderOptions*,
ExceptionState&);
const TraceWrapperMember<TransformStream> transform_;
const WTF::TextEncoding encoding_;
const bool fatal_;
const bool ignore_bom_;
DISALLOW_COPY_AND_ASSIGN(TextDecoderStream);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_ENCODING_TEXT_DECODER_STREAM_H_