mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-05-11 17:37:33 +02:00
4762c4fa5c
Introduce IncrementalDocumentParser, which streams the response body through a TextCodec::StreamingDecoder into the HTMLTokenizer one chunk at a time. The tokenizer pauses when it runs out of input and resumes once the next chunk is appended; when the body closes we close the tokenizer's input stream so it can finish the parse. DocumentLoading routes HTML responses through the new parser instead of buffering the full body before handing it to HTMLParser.
59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
/*
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* Copyright (c) 2026, Ladybird contributors
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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/ByteBuffer.h>
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#include <AK/Optional.h>
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#include <AK/OwnPtr.h>
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#include <AK/StringBuilder.h>
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#include <LibJS/Heap/Cell.h>
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#include <LibTextCodec/Decoder.h>
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#include <LibURL/URL.h>
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#include <LibWeb/Export.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/MimeSniff/MimeType.h>
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namespace Web::HTML {
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class WEB_API IncrementalDocumentParser final : public JS::Cell {
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GC_CELL(IncrementalDocumentParser, JS::Cell);
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GC_DECLARE_ALLOCATOR(IncrementalDocumentParser);
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public:
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static GC::Ref<IncrementalDocumentParser> create(GC::Ref<DOM::Document>, GC::Ref<Fetch::Infrastructure::Body>, URL::URL, Optional<MimeSniff::MimeType>);
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void start();
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private:
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IncrementalDocumentParser(GC::Ref<DOM::Document>, GC::Ref<Fetch::Infrastructure::Body>, URL::URL, Optional<MimeSniff::MimeType>);
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virtual void visit_edges(Cell::Visitor&) override;
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void initialize_parser(ReadonlyBytes sniff_bytes);
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void start_incremental_read();
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void process_body_chunk(ByteBuffer);
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void process_end_of_body();
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void process_body_error(JS::Value);
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void append_decoded(StringView);
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void pump();
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void register_deferred_start();
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bool should_continue() const;
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GC::Ref<DOM::Document> m_document;
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GC::Ref<Fetch::Infrastructure::Body> m_body;
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URL::URL m_url;
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Optional<MimeSniff::MimeType> m_mime_type;
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GC::Ptr<HTMLParser> m_parser;
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OwnPtr<TextCodec::StreamingDecoder> m_decoder;
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StringBuilder m_source;
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};
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}
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