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ddddb6363f
* Add merge status tests * Introduce containsAll and containsNone * Rename containsAll to containsOnly
39 lines
1.0 KiB
Swift
39 lines
1.0 KiB
Swift
//
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// UIViewController+CancelAction.swift
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// Freetime
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//
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// Created by Ryan Nystrom on 10/8/17.
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// Copyright © 2017 Ryan Nystrom. All rights reserved.
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//
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import UIKit
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extension UIViewController {
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func cancelAction_onCancel(
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texts: [String?],
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title: String = NSLocalizedString("Unsaved Changes", comment: ""),
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message: String
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) {
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let dismissBlock = {
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self.dismiss(animated: trueUnlessReduceMotionEnabled)
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}
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// dismiss if all text entries are empty
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let canDismissNow = texts.containsOnly { $0 == nil || $0!.isEmpty }
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if canDismissNow {
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dismissBlock()
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} else {
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let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
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alert.addActions([
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AlertAction.goBack(),
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AlertAction.discard { _ in
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dismissBlock()
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}
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])
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present(alert, animated: trueUnlessReduceMotionEnabled)
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}
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}
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}
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