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57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
/*
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* Copyright (c) 2024, Tim Flynn <trflynn89@ladybird.org>
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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/MemoryStream.h>
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#include <AK/NonnullOwnPtr.h>
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#include <AK/Variant.h>
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#include <LibCompress/Forward.h>
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#include <LibGC/Ptr.h>
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#include <LibJS/Forward.h>
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#include <LibWeb/Bindings/CompressionStreamPrototype.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/Streams/GenericTransformStream.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::Compression {
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using Compressor = Variant<
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NonnullOwnPtr<Compress::ZlibCompressor>,
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NonnullOwnPtr<Compress::DeflateCompressor>,
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NonnullOwnPtr<Compress::GzipCompressor>>;
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// https://compression.spec.whatwg.org/#compressionstream
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class CompressionStream final
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: public Bindings::PlatformObject
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, public Streams::GenericTransformStreamMixin {
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WEB_PLATFORM_OBJECT(CompressionStream, Bindings::PlatformObject);
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GC_DECLARE_ALLOCATOR(CompressionStream);
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public:
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static WebIDL::ExceptionOr<GC::Ref<CompressionStream>> construct_impl(JS::Realm&, Bindings::CompressionFormat);
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virtual ~CompressionStream() override;
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private:
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CompressionStream(JS::Realm&, GC::Ref<Streams::TransformStream>, Compressor, NonnullOwnPtr<AllocatingMemoryStream>);
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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> compress_and_enqueue_chunk(JS::Value);
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WebIDL::ExceptionOr<void> compress_flush_and_enqueue();
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enum class Finish {
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No,
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Yes,
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};
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ErrorOr<ByteBuffer> compress(ReadonlyBytes, Finish);
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Compressor m_compressor;
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NonnullOwnPtr<AllocatingMemoryStream> m_output_stream;
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};
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}
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