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@mayoralito
Created February 10, 2018 22:22
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/**
* MIT License
*
* Copyright (c) 2017-present, Adrian Mayoral.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import Foundation
typealias Mapping<S> = (S) -> S
class Delayer {
var timer: Timer?
var exec: Mapping<Any>?
init() {
}
func start(delay value: Double, executer: @escaping Mapping<Any>) {
if timer != nil {
self.timer?.invalidate()
}
timer = Timer.scheduledTimer(
timeInterval: TimeInterval(value),
target: self,
selector: #selector(executerHandler(timer:)),
userInfo: nil,
repeats: true
)
exec = executer
}
@objc func executerHandler(timer: Timer) {
self.timer?.invalidate()
self.timer = nil
let _ = exec!([])
}
}
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