NetNewsWire/iOS/Add/AddContainerViewController....

171 lines
4.2 KiB
Swift

//
// AddContainerViewController.swift
// NetNewsWire
//
// Created by Maurice Parker on 4/16/19.
// Copyright © 2019 Ranchero Software, LLC. All rights reserved.
//
import UIKit
protocol AddContainerViewControllerChild: UIViewController {
var delegate: AddContainerViewControllerChildDelegate? {get set}
func cancel()
func add()
}
protocol AddContainerViewControllerChildDelegate: UIViewController {
func readyToAdd(state: Bool)
func processingDidBegin()
func processingDidCancel()
func processingDidEnd()
}
class AddContainerViewController: UIViewController {
static let preferredContentSizeForFormSheetDisplay = CGSize(width: 460.0, height: 400.0)
@IBOutlet weak var cancelButton: UIBarButtonItem!
@IBOutlet weak var activityIndicatorView: UIActivityIndicatorView!
@IBOutlet weak var addButton: UIBarButtonItem!
@IBOutlet weak var typeSelectorContainer: UIView!
@IBOutlet weak var typeSelectorSegmentedControl: UISegmentedControl!
@IBOutlet weak var containerView: UIView!
private var currentViewController: AddContainerViewControllerChild?
var initialControllerType: AddControllerType?
var initialFeed: String?
var initialFeedName: String?
override func viewDidLoad() {
super.viewDidLoad()
activityIndicatorView.color = UIColor.label
activityIndicatorView.isHidden = true
typeSelectorContainer.layer.cornerRadius = 10
typeSelectorSegmentedControl.selectedSegmentIndex = initialControllerType?.rawValue ?? 0
switch initialControllerType {
case .feed:
switchToFeed()
case .folder:
switchToFolder()
default:
assertionFailure()
}
}
@IBAction func typeSelectorChanged(_ sender: UISegmentedControl) {
switch sender.selectedSegmentIndex {
case 0:
switchToFeed()
default:
switchToFolder()
}
}
@IBAction func cancel(_ sender: Any) {
currentViewController?.cancel()
dismiss(animated: true)
}
@IBAction func add(_ sender: Any) {
currentViewController?.add()
}
}
extension AddContainerViewController: AddContainerViewControllerChildDelegate {
func readyToAdd(state: Bool) {
addButton.isEnabled = state
}
func processingDidBegin() {
addButton.isEnabled = false
typeSelectorSegmentedControl.isEnabled = false
activityIndicatorView.isHidden = false
activityIndicatorView.startAnimating()
}
func processingDidCancel() {
addButton.isEnabled = true
typeSelectorSegmentedControl.isEnabled = true
activityIndicatorView.isHidden = true
activityIndicatorView.stopAnimating()
}
func processingDidEnd() {
dismiss(animated: true)
}
}
private extension AddContainerViewController {
func switchToFeed() {
guard !(currentViewController is AddWebFeedViewController) else {
return
}
navigationItem.title = NSLocalizedString("Add Web Feed", comment: "Add Web Feed")
resetUI()
let addFeedController = UIStoryboard.add.instantiateController(ofType: AddWebFeedViewController.self)
addFeedController.initialFeed = initialFeed
addFeedController.initialFeedName = initialFeedName
displayContentController(addFeedController)
}
func switchToFolder() {
guard !(currentViewController is AddFolderViewController) else {
return
}
navigationItem.title = NSLocalizedString("Add Folder", comment: "Add Folder")
resetUI()
displayContentController(UIStoryboard.add.instantiateController(ofType: AddFolderViewController.self))
}
func resetUI() {
addButton.isEnabled = false
}
func displayContentController(_ controller: AddContainerViewControllerChild) {
if let currentViewController = currentViewController {
let transition = CATransition()
transition.type = .push
transition.subtype = currentViewController is AddWebFeedViewController ? .fromRight : .fromLeft
containerView.layer.add(transition, forKey: "transition")
containerView.addChildAndPin(controller.view)
addChild(controller)
controller.didMove(toParent: self)
currentViewController.willMove(toParent: nil)
currentViewController.view.removeFromSuperview()
currentViewController.removeFromParent()
} else {
containerView.addChildAndPin(controller.view)
addChild(controller)
controller.didMove(toParent: self)
}
currentViewController = controller
currentViewController?.delegate = self
}
}