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LibWeb: Implement performance.{measure,clearMeasures}

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Luke Wilde 2023-05-13 13:34:28 +01:00 • committed by Andreas Kling
parent d088619560
commit 036e1e1bcf
10 changed files with 371 additions and 4 deletions
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57
Userland/Libraries/LibWeb/UserTiming/PerformanceMeasure.h Normal file
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/*
* Copyright (c) 2023, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/PerformanceTimeline/PerformanceEntry.h>
namespace Web::UserTiming {
// https://w3c.github.io/user-timing/#dom-performancemeasureoptions
struct PerformanceMeasureOptions {
JS::Value detail { JS::js_undefined() };
Optional<Variant<String, HighResolutionTime::DOMHighResTimeStamp>> start;
Optional<HighResolutionTime::DOMHighResTimeStamp> duration;
Optional<Variant<String, HighResolutionTime::DOMHighResTimeStamp>> end;
};
// https://w3c.github.io/user-timing/#dom-performancemeasure
class PerformanceMeasure final : public PerformanceTimeline::PerformanceEntry {
WEB_PLATFORM_OBJECT(PerformanceMeasure, PerformanceTimeline::PerformanceEntry);
public:
virtual ~PerformanceMeasure();
static WebIDL::ExceptionOr<JS::NonnullGCPtr<PerformanceMeasure>> create(JS::Realm&, String const& measure_name, HighResolutionTime::DOMHighResTimeStamp start_time, HighResolutionTime::DOMHighResTimeStamp duration, JS::Value detail);
// NOTE: These three functions are answered by the registry for the given entry type.
// https://w3c.github.io/timing-entrytypes-registry/#registry
// https://w3c.github.io/timing-entrytypes-registry/#dfn-availablefromtimeline
static PerformanceTimeline::AvailableFromTimeline available_from_timeline() { return PerformanceTimeline::AvailableFromTimeline::Yes; }
// https://w3c.github.io/timing-entrytypes-registry/#dfn-maxbuffersize
// NOTE: The empty state represents Infinite size.
static Optional<u64> max_buffer_size() { return OptionalNone {}; }
// https://w3c.github.io/timing-entrytypes-registry/#dfn-should-add-entry
virtual PerformanceTimeline::ShouldAddEntry should_add_entry() const override { return PerformanceTimeline::ShouldAddEntry::Yes; }
virtual FlyString const& entry_type() const override;
JS::Value detail() const { return m_detail; }
private:
PerformanceMeasure(JS::Realm&, String const& name, HighResolutionTime::DOMHighResTimeStamp start_time, HighResolutionTime::DOMHighResTimeStamp duration, JS::Value detail);
virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
virtual void visit_edges(JS::Cell::Visitor&) override;
// https://w3c.github.io/user-timing/#dom-performancemeasure-detail
JS::Value m_detail { JS::js_null() };
};
}