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https://github.com/LadybirdBrowser/ladybird.git
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a6dfc74e93
Before this change, we were going through the chain of base classes for each IDL interface object and having them set the prototype to their prototype. Instead of doing that, reorder things so that we set the right prototype immediately in Foo::initialize(), and then don't bother in all the base class overrides. This knocks off a ~1% profile item on Speedometer 3.
55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
/*
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* Copyright (c) 2021, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Bindings/IdleDeadlinePrototype.h>
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#include <LibWeb/HTML/EventLoop/EventLoop.h>
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#include <LibWeb/HTML/Window.h>
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#include <LibWeb/HighResolutionTime/TimeOrigin.h>
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#include <LibWeb/RequestIdleCallback/IdleDeadline.h>
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namespace Web::RequestIdleCallback {
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GC_DEFINE_ALLOCATOR(IdleDeadline);
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GC::Ref<IdleDeadline> IdleDeadline::create(JS::Realm& realm, bool did_timeout)
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{
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return realm.create<IdleDeadline>(realm, did_timeout);
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}
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IdleDeadline::IdleDeadline(JS::Realm& realm, bool did_timeout)
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: PlatformObject(realm)
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, m_did_timeout(did_timeout)
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{
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}
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void IdleDeadline::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(IdleDeadline);
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Base::initialize(realm);
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}
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IdleDeadline::~IdleDeadline() = default;
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// https://w3c.github.io/requestidlecallback/#dom-idledeadline-timeremaining
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double IdleDeadline::time_remaining() const
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{
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auto const& event_loop = HTML::main_thread_event_loop();
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// 1. Let now be a DOMHighResTimeStamp representing current high resolution time in milliseconds.
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auto now = HighResolutionTime::current_high_resolution_time(HTML::relevant_global_object(*this));
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// 2. Let deadline be the result of calling IdleDeadline's get deadline time algorithm.
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auto deadline = event_loop.compute_deadline();
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// 3. Let timeRemaining be deadline - now.
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auto time_remaining = deadline - now;
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// 4. If timeRemaining is negative, set it to 0.
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if (time_remaining < 0)
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time_remaining = 0;
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// 5. Return timeRemaining.
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// NOTE: coarsening to milliseconds
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return ceil(time_remaining);
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}
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}
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