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BigScreenRootViewController.swift
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BigScreenRootViewController.swift
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import UIKit
import CoreLocation
import ReSwift
struct BigScreenRootViewControllerState: Equatable {
var accessGranted: Bool
var geocoderQueueCount: Int
var mapSelectedContact: MapContactSelection?
var mapSelectedPersonLocationForEdit: PersonLocation?
init(newState: AppState) {
accessGranted = (
newState.contactsAuthStatus == .authorized &&
newState.locationAuthStatus == .authorized
)
geocoderQueueCount = newState.geocoderQueueCount
mapSelectedContact = newState.mapSelection
mapSelectedPersonLocationForEdit = newState.mapPersonLocationForEdit
}
}
class BigScreenRootViewController: UISplitViewController, StoreSubscriber, UISheetPresentationControllerDelegate, UISplitViewControllerDelegate {
private var currentState: BigScreenRootViewControllerState?
private let mapVC = MapViewController()
private let contactListVC = MapContactListViewController()
private var contactDetailVC: ContactDetailViewController?
private var personLocationEditVC: LocationEditViewController?
private var onboardingVC: OnboardingViewController?
init() {
super.init(style: .doubleColumn)
primaryBackgroundStyle = .sidebar
preferredDisplayMode = .oneBesideSecondary
displayModeButtonVisibility = .never
setViewController(contactListVC, for: .primary)
setViewController(mapVC, for: .secondary)
self.delegate = self
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
presentOrDismissOnboarding()
app.store.subscribe(self) { subscription in
return subscription.select(BigScreenRootViewControllerState.init)
}
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
app.store.unsubscribe(self)
}
func newState(state: BigScreenRootViewControllerState) {
let prevState = currentState
currentState = state
if state.mapSelectedContact != prevState?.mapSelectedContact {
if let mapSelectedPersonLocation = state.mapSelectedContact?.personLocation {
presentContactDetails(mapSelectedPersonLocation)
} else {
dismissContactDetails()
}
}
if state.mapSelectedPersonLocationForEdit != prevState?.mapSelectedPersonLocationForEdit {
if let location = state.mapSelectedPersonLocationForEdit {
presentPersonLocationForEdit(personLocation: location)
} else {
dismissPersonLocationForEdit()
}
}
presentOrDismissOnboarding()
}
private func presentOrDismissOnboarding() {
var needsOnboarding = false
if let currentState = currentState {
needsOnboarding = (
!currentState.accessGranted ||
currentState.geocoderQueueCount > 3 ||
(currentState.geocoderQueueCount > 0 && onboardingVC != nil)
)
}
if needsOnboarding {
presentOnboarding()
} else {
dismissOnboarding()
}
}
private func presentOnboarding() {
if self.onboardingVC != nil {
return
}
let onboardingVC = OnboardingViewController()
onboardingVC.modalPresentationStyle = .overFullScreen
self.onboardingVC = onboardingVC
let keyWindow = UIApplication.shared.connectedScenes
.flatMap { ($0 as? UIWindowScene)?.windows ?? [] }
.first { $0.isKeyWindow }
guard let keyWindow = keyWindow else {
fatalError("No key window")
}
guard var topVC = keyWindow.rootViewController else {
fatalError("No top view controller")
}
while let presentedViewController = topVC.presentedViewController {
topVC = presentedViewController
}
topVC.present(onboardingVC, animated: false)
}
private func dismissOnboarding() {
if let onboardingVC = onboardingVC {
onboardingVC.dismiss(animated: true)
self.onboardingVC = nil
}
}
private func presentContactDetails(_ personLocation: PersonLocation) {
if let contactDetailVC = contactDetailVC {
contactDetailVC.personLocation = personLocation
return // already presented
}
let contactDetailVC = ContactDetailViewController(personLocation: personLocation)
setViewController(contactDetailVC, for: .primary)
self.contactDetailVC = contactDetailVC
}
private func dismissContactDetails() {
setViewController(contactListVC, for: .primary)
contactDetailVC = nil
}
private func presentPersonLocationForEdit(personLocation: PersonLocation) {
if personLocationEditVC != nil {
return // already presented
}
guard let contactDetailVC = contactDetailVC else {
fatalError("No contact details presented; cannot edit location")
}
let personLocationEditVC = LocationEditViewController(personLocation: personLocation)
personLocationEditVC.isModalInPresentation = true // prevent dismissal
if let sheet = personLocationEditVC.sheetPresentationController {
sheet.delegate = self
}
contactDetailVC.present(personLocationEditVC, animated: true)
self.personLocationEditVC = personLocationEditVC
}
private func dismissPersonLocationForEdit() {
personLocationEditVC?.dismiss(animated: true)
personLocationEditVC = nil
}
}