ef6753a9f9
Add explicit IgnoreBOM and ErrorMode options to LibTextCodec decoders, and thread them through TextDecoder and TextDecoderStream. This lets Web-facing decoder APIs preserve BOMs when requested and use fatal error handling without post-processing decoded output. NB: RemoveBOM was renamed to IgnoreBOM as "RemoveBOM" is the name used by encoding_rs and was previously an implementation detail. The new name matches what is used by the encoding standard as it is now also used in LibWeb.
44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
/*
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* Copyright (c) 2026-present, the Ladybird developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/OwnPtr.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/Encoding/TextDecoder.h>
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#include <LibWeb/Encoding/TextDecoderCommon.h>
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#include <LibWeb/Streams/GenericTransformStream.h>
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namespace Web::Encoding {
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// https://encoding.spec.whatwg.org/#textdecoderstream
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class TextDecoderStream final
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: public Bindings::PlatformObject
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, public Streams::GenericTransformStreamMixin
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, public TextDecoderCommonMixin {
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WEB_PLATFORM_OBJECT(TextDecoderStream, Bindings::PlatformObject);
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GC_DECLARE_ALLOCATOR(TextDecoderStream);
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public:
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static WebIDL::ExceptionOr<GC::Ref<TextDecoderStream>> construct_impl(JS::Realm&, FlyString label, Bindings::TextDecoderOptions const&);
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virtual ~TextDecoderStream() override;
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private:
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TextDecoderStream(JS::Realm&, GC::Ref<Streams::TransformStream>, TextCodec::Decoder&, FlyString encoding, TextCodec::ErrorMode, bool ignore_bom);
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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WebIDL::ExceptionOr<void> decode_and_enqueue_chunk(JS::Value);
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WebIDL::ExceptionOr<void> flush_and_enqueue();
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WebIDL::ExceptionOr<void> enqueue_decoded_output(String const&);
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// https://encoding.spec.whatwg.org/#textdecodercommon-i-o-queue
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NonnullOwnPtr<TextCodec::StreamingDecoder> m_streaming_decoder;
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};
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}
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