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[rbdr/map] / Map / Logic / Debouncer.swift
1 /*
2 Copyright (C) 2024 Rubén Beltrán del Río
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see https://map.tranquil.systems.
16 */
17 import Foundation
18
19 class Debouncer {
20
21 // MARK: - Properties
22 private let queue = DispatchQueue.global(qos: .utility)
23 private var workItem = DispatchWorkItem(block: {})
24 private var interval: TimeInterval
25
26 // MARK: - Initializer
27 init(seconds: TimeInterval) {
28 self.interval = seconds
29 }
30
31 // MARK: - Debouncing function
32 func debounce(action: @escaping (() -> Void)) {
33 workItem.cancel()
34 workItem = DispatchWorkItem(block: { action() })
35 queue.asyncAfter(deadline: .now() + interval, execute: workItem)
36 }
37 }