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https://github.com/RGBCube/serenity
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This is a simple helper to debounce a function call, such as an event handler. It avoids the function being called until the event as settled down (i.e. after the timeout).
29 lines
632 B
C++
29 lines
632 B
C++
/*
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* Copyright (c) 2022, MacDue <macdue@dueutil.tech>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibCore/Timer.h>
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namespace Core {
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template<typename TFunction>
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auto debounce(TFunction function, int timeout)
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{
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RefPtr<Core::Timer> timer;
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return [=]<typename... T>(T... args) mutable {
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auto apply_function = [=] { function(args...); };
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if (timer) {
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timer->stop();
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timer->on_timeout = move(apply_function);
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} else {
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timer = Core::Timer::create_single_shot(timeout, move(apply_function));
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}
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timer->start();
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};
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};
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}
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