143 lines
3.5 KiB
Swift
143 lines
3.5 KiB
Swift
//
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// AddContainerViewController.swift
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// NetNewsWire
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//
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// Created by Maurice Parker on 4/16/19.
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// Copyright © 2019 Ranchero Software, LLC. All rights reserved.
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//
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import UIKit
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protocol AddContainerViewControllerChild: UIViewController {
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var delegate: AddContainerViewControllerChildDelegate? {get set}
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func cancel()
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func add()
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}
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protocol AddContainerViewControllerChildDelegate: UIViewController {
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func readyToAdd(state: Bool)
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func processingDidBegin()
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func processingDidCancel()
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func processingDidEnd()
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}
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class AddContainerViewController: UIViewController {
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@IBOutlet weak var cancelButton: UIBarButtonItem!
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@IBOutlet weak var activityIndicatorView: UIActivityIndicatorView!
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@IBOutlet weak var addButton: UIBarButtonItem!
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@IBOutlet weak var typeSelectorSegmentedControl: UISegmentedControl!
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@IBOutlet weak var containerView: UIView!
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private var currentViewController: AddContainerViewControllerChild?
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override func viewDidLoad() {
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super.viewDidLoad()
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activityIndicatorView.isHidden = true
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switchToFeed()
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}
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@IBAction func typeSelectorChanged(_ sender: UISegmentedControl) {
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switch sender.selectedSegmentIndex {
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case 0:
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switchToFeed()
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default:
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switchToFolder()
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}
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}
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@IBAction func cancel(_ sender: Any) {
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currentViewController?.cancel()
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dismiss(animated: true)
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}
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@IBAction func add(_ sender: Any) {
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currentViewController?.add()
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}
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}
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extension AddContainerViewController: AddContainerViewControllerChildDelegate {
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func readyToAdd(state: Bool) {
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addButton.isEnabled = state
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}
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func processingDidBegin() {
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addButton.isEnabled = false
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typeSelectorSegmentedControl.isEnabled = false
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activityIndicatorView.isHidden = false
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activityIndicatorView.startAnimating()
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}
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func processingDidCancel() {
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addButton.isEnabled = true
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typeSelectorSegmentedControl.isEnabled = true
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activityIndicatorView.isHidden = true
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activityIndicatorView.stopAnimating()
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}
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func processingDidEnd() {
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dismiss(animated: true)
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}
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}
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private extension AddContainerViewController {
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func switchToFeed() {
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guard !(currentViewController is AddFeedViewController) else {
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return
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}
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resetUI()
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hideCurrentController()
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displayContentController(UIStoryboard.add.instantiateController(ofType: AddFeedViewController.self))
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}
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func switchToFolder() {
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guard !(currentViewController is AddFolderViewController) else {
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return
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}
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resetUI()
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hideCurrentController()
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displayContentController(UIStoryboard.add.instantiateController(ofType: AddFolderViewController.self))
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}
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func resetUI() {
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addButton.isEnabled = false
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}
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func displayContentController(_ controller: AddContainerViewControllerChild) {
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currentViewController = controller
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controller.delegate = self
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addChild(controller)
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containerView.addSubview(controller.view)
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controller.view.translatesAutoresizingMaskIntoConstraints = false
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controller.view.topAnchor.constraint(equalTo: containerView.topAnchor).isActive = true
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controller.view.bottomAnchor.constraint(equalTo: containerView.bottomAnchor).isActive = true
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controller.view.leadingAnchor.constraint(equalTo: containerView.leadingAnchor).isActive = true
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controller.view.trailingAnchor.constraint(equalTo: containerView.trailingAnchor).isActive = true
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controller.didMove(toParent: self)
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}
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func hideCurrentController() {
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guard let currentViewController = currentViewController else {
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return
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}
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currentViewController.willMove(toParent: nil)
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currentViewController.view.removeFromSuperview()
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currentViewController.removeFromParent()
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}
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}
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