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LibWeb: Implement ByteLengthQueuingStrategy highWaterMark property

This commit is contained in:
Shannon Booth 2023-06-18 20:26:19 +12:00 committed by Andreas Kling
parent c9941ba95b
commit f86c3ab148
6 changed files with 95 additions and 0 deletions

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/*
* Copyright (c) 2023, Shannon Booth <shannon.ml.booth@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/ByteLengthQueuingStrategyPrototype.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/Streams/ByteLengthQueuingStrategy.h>
#include <LibWeb/WebIDL/ExceptionOr.h>
namespace Web::Streams {
// https://streams.spec.whatwg.org/#blqs-constructor
WebIDL::ExceptionOr<JS::NonnullGCPtr<ByteLengthQueuingStrategy>> ByteLengthQueuingStrategy::construct_impl(JS::Realm& realm, QueuingStrategyInit const& init)
{
// The new ByteLengthQueuingStrategy(init) constructor steps are:
// 1. Set this.[[highWaterMark]] to init["highWaterMark"].
return MUST_OR_THROW_OOM(realm.heap().allocate<ByteLengthQueuingStrategy>(realm, realm, init.high_water_mark));
}
ByteLengthQueuingStrategy::ByteLengthQueuingStrategy(JS::Realm& realm, double high_water_mark)
: PlatformObject(realm)
, m_high_water_mark(high_water_mark)
{
}
ByteLengthQueuingStrategy::~ByteLengthQueuingStrategy() = default;
JS::ThrowCompletionOr<void> ByteLengthQueuingStrategy::initialize(JS::Realm& realm)
{
MUST_OR_THROW_OOM(Base::initialize(realm));
set_prototype(&Bindings::ensure_web_prototype<Bindings::ByteLengthQueuingStrategyPrototype>(realm, "ByteLengthQueuingStrategy"));
return {};
}
}

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/*
* Copyright (c) 2023, Shannon Booth <shannon.ml.booth@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Forward.h>
#include <LibJS/Forward.h>
#include <LibWeb/Bindings/PlatformObject.h>
#include <LibWeb/Forward.h>
#include <LibWeb/Streams/QueuingStrategyInit.h>
namespace Web::Streams {
// https://streams.spec.whatwg.org/#bytelengthqueuingstrategy
class ByteLengthQueuingStrategy final : public Bindings::PlatformObject {
WEB_PLATFORM_OBJECT(ByteLengthQueuingStrategy, Bindings::PlatformObject);
public:
static WebIDL::ExceptionOr<JS::NonnullGCPtr<ByteLengthQueuingStrategy>> construct_impl(JS::Realm&, QueuingStrategyInit const&);
virtual ~ByteLengthQueuingStrategy() override;
// https://streams.spec.whatwg.org/#blqs-high-water-mark
double high_water_mark() const
{
// The highWaterMark getter steps are:
// 1. Return this.[[highWaterMark]].
return m_high_water_mark;
}
private:
explicit ByteLengthQueuingStrategy(JS::Realm&, double high_water_mark);
virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
// https://streams.spec.whatwg.org/#bytelengthqueuingstrategy-highwatermark
double m_high_water_mark { 0 };
};
}

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#import <Streams/QueuingStrategyInit.idl>
// https://streams.spec.whatwg.org/#blqs-class-definition
[Exposed=*]
interface ByteLengthQueuingStrategy {
constructor(QueuingStrategyInit init);
readonly attribute unrestricted double highWaterMark;
// FIXME: readonly attribute Function size;
};