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71 lines
3 KiB
Swift
71 lines
3 KiB
Swift
//
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// Alerts.swift
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// KeymanEngine
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//
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// Created by Joshua Horton on 1/27/20.
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// Copyright © 2020 SIL International. All rights reserved.
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//
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import Foundation
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import UIKit
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import Reachability
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import os.log
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open class Alerts {
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public typealias AcceptanceHandler = ((UIAlertAction)) -> Void
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public static func constructActivitySpinner() -> UIActivityIndicatorView {
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let activitySpinner: UIActivityIndicatorView
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activitySpinner = UIActivityIndicatorView(style: .whiteLarge)
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activitySpinner.hidesWhenStopped = true
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activitySpinner.translatesAutoresizingMaskIntoConstraints = false
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activitySpinner.backgroundColor = Colors.spinnerBackground
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activitySpinner.layer.cornerRadius = 6.0
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activitySpinner.autoresizingMask = [.flexibleLeftMargin, .flexibleRightMargin, .flexibleTopMargin,
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.flexibleBottomMargin]
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return activitySpinner
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}
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public static func showErrorAlert(in vc: UIViewController, title: String, msg: String, handler: @escaping AcceptanceHandler) {
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let alertController = UIAlertController(title: title,
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message: msg,
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preferredStyle: UIAlertController.Style.alert)
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alertController.addAction(UIAlertAction(title: NSLocalizedString("command-ok", bundle: engineBundle, comment: ""),
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style: UIAlertAction.Style.default,
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handler: handler))
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vc.present(alertController, animated: true, completion: nil)
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}
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public static func showConnectionErrorAlert(in vc: UIViewController, handler: @escaping AcceptanceHandler) {
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showErrorAlert(in: vc,
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title: NSLocalizedString("alert-no-connection-title", bundle: engineBundle, comment: ""),
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msg: NSLocalizedString("alert-no-connection-detail", bundle: engineBundle, comment: ""),
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handler: handler)
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}
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public static func showDownloadErrorAlert(in vc: UIViewController, handler: @escaping AcceptanceHandler) {
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var networkReachable: Reachability?
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do {
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try networkReachable = Reachability(hostname: KeymanHosts.KEYMAN_COM.host!)
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} catch {
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os_log("Reachability could not start", log:KeymanEngineLogger.ui, type: .debug)
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}
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if networkReachable?.connection == Reachability.Connection.unavailable || networkReachable == nil {
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showConnectionErrorAlert(in: vc, handler: handler)
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} else {
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// Show a different alert!
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showErrorAlert(in: vc,
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title: NSLocalizedString("alert-download-error-title", bundle: engineBundle, comment: ""),
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msg: NSLocalizedString("alert-download-error-detail", bundle: engineBundle, comment: ""),
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handler: handler)
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}
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}
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public static func popToNavigationRootHandler(for vc: UIViewController) -> AcceptanceHandler {
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return { alertAction in
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vc.navigationController?.popToRootViewController(animated: true)
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}
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}
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}
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