git.r.bdr.sh - rbdr/map/blob - Map/Debouncer.swift

   1 import Foundation
   2
   3 class Debouncer {
   4
   5   // MARK: - Properties
   6   private let queue = DispatchQueue.global(qos: .utility)
   7   private var workItem = DispatchWorkItem(block: {})
   8   private var interval: TimeInterval
   9
  10   // MARK: - Initializer
  11   init(seconds: TimeInterval) {
  12     self.interval = seconds
  13   }
  14
  15   // MARK: - Debouncing function
  16   func debounce(action: @escaping (() -> Void)) {
  17     workItem.cancel()
  18     workItem = DispatchWorkItem(block: { action() })
  19     queue.asyncAfter(deadline: .now() + interval, execute: workItem)
  20   }
  21 }