mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 01:02:45 +00:00
cdcdc095df
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++
/*
|
|
* Copyright (c) 2022, MacDue <macdue@dueutil.tech>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <LibCore/Timer.h>
|
|
|
|
namespace Core {
|
|
|
|
template<typename TFunction>
|
|
auto debounce(TFunction function, int timeout)
|
|
{
|
|
RefPtr<Core::Timer> timer;
|
|
return [=]<typename... T>(T... args) mutable {
|
|
auto apply_function = [=] { function(args...); };
|
|
if (timer) {
|
|
timer->stop();
|
|
timer->on_timeout = move(apply_function);
|
|
} else {
|
|
timer = Core::Timer::create_single_shot(timeout, move(apply_function));
|
|
}
|
|
timer->start();
|
|
};
|
|
};
|
|
|
|
}
|