Sylvestre Ledru
9eb1a31a98
replaced by .editorconfig # ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D287843
92 lines
3.5 KiB
C++
92 lines
3.5 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef DOM_COMPRESSION_BASEALGORITHMS_H_
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#define DOM_COMPRESSION_BASEALGORITHMS_H_
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#include "js/TypeDecls.h"
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#include "mozilla/dom/TransformerCallbackHelpers.h"
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namespace mozilla::dom::compression {
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// A top-level, library-agnostic flush enum that should be converted
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// into the native flush values for a given (de)compression library
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// with a function defined below.
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enum class Flush : bool { No, Yes };
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class CompressionStreamAlgorithms : public TransformerAlgorithmsWrapper {
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public:
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// Step 3 of
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// https://wicg.github.io/compression/#dom-decompressionstream-decompressionstream
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// Let transformAlgorithm be an algorithm which takes a chunk argument and
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// runs the compress and enqueue a chunk algorithm with this and chunk.
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MOZ_CAN_RUN_SCRIPT
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void TransformCallbackImpl(JS::Handle<JS::Value> aChunk,
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TransformStreamDefaultController& aController,
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ErrorResult& aRv) override;
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// Step 4 of
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// https://compression.spec.whatwg.org/#dom-decompressionstream-decompressionstream
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// Let flushAlgorithm be an algorithm which takes no argument and runs the
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// compress flush and enqueue algorithm with this.
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MOZ_CAN_RUN_SCRIPT void FlushCallbackImpl(
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TransformStreamDefaultController& aController, ErrorResult& aRv) override;
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protected:
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static const uint16_t kBufferSize = 16384;
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~CompressionStreamAlgorithms() = default;
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virtual void Compress(JSContext* aCx, Span<const uint8_t> aInput,
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JS::MutableHandleVector<JSObject*> aOutput,
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Flush aFlush, ErrorResult& aRv) = 0;
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private:
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MOZ_CAN_RUN_SCRIPT void CompressAndEnqueue(
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JSContext* aCx, Span<const uint8_t> aInput, Flush aFlush,
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TransformStreamDefaultController& aController, ErrorResult& aRv);
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};
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class DecompressionStreamAlgorithms : public TransformerAlgorithmsWrapper {
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public:
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// Step 3 of
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// https://wicg.github.io/compression/#dom-decompressionstream-decompressionstream
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// Let transformAlgorithm be an algorithm which takes a chunk argument and
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// runs the compress and enqueue a chunk algorithm with this and chunk.
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MOZ_CAN_RUN_SCRIPT
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void TransformCallbackImpl(JS::Handle<JS::Value> aChunk,
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TransformStreamDefaultController& aController,
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ErrorResult& aRv) override;
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// Step 4 of
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// https://compression.spec.whatwg.org/#dom-decompressionstream-decompressionstream
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// Let flushAlgorithm be an algorithm which takes no argument and runs the
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// compress flush and enqueue algorithm with this.
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MOZ_CAN_RUN_SCRIPT void FlushCallbackImpl(
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TransformStreamDefaultController& aController, ErrorResult& aRv) override;
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protected:
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static const uint16_t kBufferSize = 16384;
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~DecompressionStreamAlgorithms() = default;
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/**
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* @return true if the input is fully consumed, else false
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*/
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virtual bool Decompress(JSContext* aCx, Span<const uint8_t> aInput,
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JS::MutableHandleVector<JSObject*> aOutput,
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Flush aFlush, ErrorResult& aRv) = 0;
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bool mObservedStreamEnd = false;
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private:
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MOZ_CAN_RUN_SCRIPT void DecompressAndEnqueue(
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JSContext* aCx, Span<const uint8_t> aInput, Flush aFlush,
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TransformStreamDefaultController& aController, ErrorResult& aRv);
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};
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} // namespace mozilla::dom::compression
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#endif // DOM_COMPRESSION_BASEALGORITHMS_H_
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