ladybird/Libraries/LibWeb/Streams/WritableStreamDefaultWriter.h
2024-11-16 18:33:58 +01:00

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/*
* 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/WebIDL/Promise.h>
namespace Web::Streams {
// https://streams.spec.whatwg.org/#writablestreamdefaultwriter
class WritableStreamDefaultWriter final : public Bindings::PlatformObject {
WEB_PLATFORM_OBJECT(WritableStreamDefaultWriter, Bindings::PlatformObject);
GC_DECLARE_ALLOCATOR(WritableStreamDefaultWriter);
public:
static WebIDL::ExceptionOr<GC::Ref<WritableStreamDefaultWriter>> construct_impl(JS::Realm&, GC::Ref<WritableStream>);
virtual ~WritableStreamDefaultWriter() override = default;
GC::Ptr<WebIDL::Promise> closed();
WebIDL::ExceptionOr<Optional<double>> desired_size() const;
GC::Ptr<WebIDL::Promise> ready();
GC::Ref<WebIDL::Promise> abort(JS::Value reason);
GC::Ref<WebIDL::Promise> close();
void release_lock();
GC::Ref<WebIDL::Promise> write(JS::Value chunk);
GC::Ptr<WebIDL::Promise> closed_promise() { return m_closed_promise; }
void set_closed_promise(GC::Ptr<WebIDL::Promise> value) { m_closed_promise = value; }
GC::Ptr<WebIDL::Promise> ready_promise() { return m_ready_promise; }
void set_ready_promise(GC::Ptr<WebIDL::Promise> value) { m_ready_promise = value; }
GC::Ptr<WritableStream const> stream() const { return m_stream; }
GC::Ptr<WritableStream> stream() { return m_stream; }
void set_stream(GC::Ptr<WritableStream> value) { m_stream = value; }
private:
explicit WritableStreamDefaultWriter(JS::Realm&);
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
// https://streams.spec.whatwg.org/#writablestreamdefaultwriter-closedpromise
// A promise returned by the writers closed getter
GC::Ptr<WebIDL::Promise> m_closed_promise;
// https://streams.spec.whatwg.org/#writablestreamdefaultwriter-readypromise
// A promise returned by the writers ready getter
GC::Ptr<WebIDL::Promise> m_ready_promise;
// https://streams.spec.whatwg.org/#writablestreamdefaultwriter-stream
// A WritableStream instance that owns this reader
GC::Ptr<WritableStream> m_stream;
};
}