vlc-ios/SharedSources/VLCAlertViewController.swift

/*****************************************************************************
 * VLCAlertViewController.swift
 * VLC for iOS
 *****************************************************************************
 * Copyright (c) 2018 VideoLAN. All rights reserved.
 * $Id$
 *
 * Authors: Quentin Richard <Quentinr75@gmail.com>
 *
 * Refer to the COPYING file of the official project for license.
 *****************************************************************************/

import UIKit

typealias AlertAction = (UIAlertAction) -> Void

@objcMembers class VLCAlertButton: NSObject {
    let title: String
    let style: UIAlertAction.Style
    let action: AlertAction?
    init(title: String, style: UIAlertAction.Style = .default, action: AlertAction? = nil) {
        self.title = title
        self.style = style
        self.action = action
    }

    // For Objc
    convenience init(title: String, action: AlertAction? = nil) {
        self.init(title: title, style: .default, action: action)
    }
}

@objcMembers class VLCAlertViewController: UIAlertController {

    static func alertViewManager(title: String,
                                 errorMessage: String? = nil,
                                 viewController: UIViewController) {
        VLCAlertViewController.alertViewManager(title: title,
                                                errorMessage: errorMessage,
                                                viewController: viewController,
                                                buttonsAction: nil)
    }

    static func alertViewManager(title: String,
                                 errorMessage: String? = nil,
                                 viewController: UIViewController,
                                 buttonsAction: [VLCAlertButton]?) {
        let alert = UIAlertController(title: title, message: errorMessage, preferredStyle: .alert)
        if let buttonsAction = buttonsAction {
            for buttonAction in buttonsAction {
                let action = UIAlertAction(title: buttonAction.title,
                                           style: buttonAction.style,
                                           handler: buttonAction.action)
                alert.addAction(action)
            }
        } else {
            let action = UIAlertAction(title: NSLocalizedString("BUTTON_OK", comment:""),
                                       style: .default,
                                       handler: nil)
            alert.addAction(action)
        }
        alert.show(viewController, sender: Any?.self)
        viewController.present(alert, animated: true, completion: nil)
    }

    static func alertManagerWithTextField(title: String, description: String? = nil,
                                          viewController: UIViewController,
                                          buttonsAction: [VLCAlertButton],
                                          textFieldText: String? = nil,
                                          textFieldPlaceholder: String? = nil) {
        let alert = UIAlertController(title: title, message: description, preferredStyle: .alert)
        alert.addTextField(configurationHandler: { textField in
            textField.placeholder = textFieldPlaceholder
            textField.text = textFieldText
        })
        for buttonAction in buttonsAction {
            let action = UIAlertAction(title: buttonAction.title,
                                       style: buttonAction.style,
                                       handler: buttonAction.action)
            alert.addAction(action)
        }
        alert.show(viewController, sender: Any?.self)
        viewController.present(alert, animated: true, completion: nil)
    }
}