mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-07-09 18:41:53 +00:00
c14d5f27f9
ReadLoop requests require the chunks to be Uint8Array objects, however, TextEncoderStream requires a String (Convertible) value. This is fixed by implementing read_all_chunks as a loop of DefaultReader requests instead, which is an identity transformation. This should be okay to do, as stream chunk steps expect a JS::Value, and convert it to the type they want.
111 lines
3.6 KiB
C++
111 lines
3.6 KiB
C++
/*
|
|
* Copyright (c) 2023, Matthew Olsson <mattco@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Function.h>
|
|
#include <AK/SinglyLinkedList.h>
|
|
#include <LibJS/Forward.h>
|
|
#include <LibWeb/Bindings/PlatformObject.h>
|
|
#include <LibWeb/Forward.h>
|
|
#include <LibWeb/Streams/ReadableStreamGenericReader.h>
|
|
|
|
namespace Web::Streams {
|
|
|
|
struct ReadableStreamReadResult {
|
|
JS::Value value;
|
|
bool done;
|
|
};
|
|
|
|
class ReadRequest : public JS::Cell {
|
|
GC_CELL(ReadRequest, JS::Cell);
|
|
|
|
public:
|
|
virtual ~ReadRequest() = default;
|
|
|
|
virtual void on_chunk(JS::Value chunk) = 0;
|
|
virtual void on_close() = 0;
|
|
virtual void on_error(JS::Value error) = 0;
|
|
};
|
|
|
|
class ReadLoopReadRequest final : public ReadRequest {
|
|
GC_CELL(ReadLoopReadRequest, ReadRequest);
|
|
GC_DECLARE_ALLOCATOR(ReadLoopReadRequest);
|
|
|
|
public:
|
|
// successSteps, which is an algorithm accepting a byte sequence
|
|
using SuccessSteps = GC::Function<void(ByteBuffer)>;
|
|
|
|
// failureSteps, which is an algorithm accepting a JavaScript value
|
|
using FailureSteps = GC::Function<void(JS::Value error)>;
|
|
|
|
// AD-HOC: callback triggered on every chunk received from the stream.
|
|
using ChunkSteps = GC::Function<void(ByteBuffer)>;
|
|
|
|
ReadLoopReadRequest(JS::VM& vm, JS::Realm& realm, ReadableStreamDefaultReader& reader, GC::Ref<SuccessSteps> success_steps, GC::Ref<FailureSteps> failure_steps, GC::Ptr<ChunkSteps> chunk_steps = {});
|
|
|
|
virtual void on_chunk(JS::Value chunk) override;
|
|
|
|
virtual void on_close() override;
|
|
|
|
virtual void on_error(JS::Value error) override;
|
|
|
|
private:
|
|
virtual void visit_edges(Visitor&) override;
|
|
|
|
JS::VM& m_vm;
|
|
GC::Ref<JS::Realm> m_realm;
|
|
GC::Ref<ReadableStreamDefaultReader> m_reader;
|
|
ByteBuffer m_bytes;
|
|
GC::Ref<SuccessSteps> m_success_steps;
|
|
GC::Ref<FailureSteps> m_failure_steps;
|
|
GC::Ptr<ChunkSteps> m_chunk_steps;
|
|
};
|
|
|
|
// https://streams.spec.whatwg.org/#readablestreamdefaultreader
|
|
class ReadableStreamDefaultReader final
|
|
: public Bindings::PlatformObject
|
|
, public ReadableStreamGenericReaderMixin {
|
|
WEB_PLATFORM_OBJECT(ReadableStreamDefaultReader, Bindings::PlatformObject);
|
|
GC_DECLARE_ALLOCATOR(ReadableStreamDefaultReader);
|
|
|
|
public:
|
|
static WebIDL::ExceptionOr<GC::Ref<ReadableStreamDefaultReader>> construct_impl(JS::Realm&, GC::Ref<ReadableStream>);
|
|
|
|
// AD-HOC: Callback functions for read_all_chunks
|
|
// successSteps, which is an algorithm accepting a JavaScript value
|
|
using ReadAllOnSuccessSteps = GC::Function<void()>;
|
|
|
|
// failureSteps, which is an algorithm accepting a JavaScript value
|
|
using ReadAllOnFailureSteps = GC::Function<void(JS::Value error)>;
|
|
|
|
// AD-HOC: callback triggered on every chunk received from the stream.
|
|
using ReadAllOnChunkSteps = GC::Function<void(JS::Value chunk)>;
|
|
|
|
virtual ~ReadableStreamDefaultReader() override = default;
|
|
|
|
GC::Ref<WebIDL::Promise> read();
|
|
|
|
void read_a_chunk(Fetch::Infrastructure::IncrementalReadLoopReadRequest& read_request);
|
|
void read_all_bytes(GC::Ref<ReadLoopReadRequest::SuccessSteps>, GC::Ref<ReadLoopReadRequest::FailureSteps>);
|
|
void read_all_chunks(GC::Ref<ReadAllOnChunkSteps>, GC::Ref<ReadAllOnSuccessSteps>, GC::Ref<ReadAllOnFailureSteps>);
|
|
GC::Ref<WebIDL::Promise> read_all_bytes_deprecated();
|
|
|
|
void release_lock();
|
|
|
|
SinglyLinkedList<GC::Ref<ReadRequest>>& read_requests() { return m_read_requests; }
|
|
|
|
private:
|
|
explicit ReadableStreamDefaultReader(JS::Realm&);
|
|
|
|
virtual void initialize(JS::Realm&) override;
|
|
|
|
virtual void visit_edges(Cell::Visitor&) override;
|
|
|
|
SinglyLinkedList<GC::Ref<ReadRequest>> m_read_requests;
|
|
};
|
|
|
|
}
|