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https://github.com/RGBCube/serenity
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834202aeb9
This needs to happen before prototype/constructor intitialization can be made lazy. Otherwise, GC could run during the C++ constructor and try to collect the object currently being created.
50 lines
1.2 KiB
C++
50 lines
1.2 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/Event.h>
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#include <LibWeb/DOM/EventDispatcher.h>
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#include <LibWeb/HTML/Window.h>
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#include <LibWeb/HighResolutionTime/Performance.h>
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#include <LibWeb/NavigationTiming/PerformanceTiming.h>
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namespace Web::HighResolutionTime {
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Performance::Performance(HTML::Window& window)
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: DOM::EventTarget(window.realm())
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, m_window(window)
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{
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m_timer.start();
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}
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Performance::~Performance() = default;
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void Performance::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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set_prototype(&Bindings::ensure_web_prototype<Bindings::PerformancePrototype>(realm, "Performance"));
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}
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void Performance::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_window.ptr());
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visitor.visit(m_timing.ptr());
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}
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JS::GCPtr<NavigationTiming::PerformanceTiming> Performance::timing()
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{
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if (!m_timing)
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m_timing = heap().allocate<NavigationTiming::PerformanceTiming>(realm(), *m_window);
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return m_timing;
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}
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double Performance::time_origin() const
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{
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return static_cast<double>(m_timer.origin_time().to_milliseconds());
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}
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}
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