Kurdtvs-Live-Kurdish-TV-Kur.../Mastodon/Scene/Wizard/WizardViewController.swift

214 lines
6.1 KiB
Swift

//
// WizardViewController.swift
// Mastodon
//
// Created by Cirno MainasuK on 2021-11-2.
//
import os.log
import UIKit
import Combine
import MastodonAsset
import MastodonLocalization
protocol WizardViewControllerDelegate: AnyObject {
func readyToLayoutItem(_ wizardViewController: WizardViewController, item: WizardViewController.Item) -> Bool
func layoutSpotlight(_ wizardViewController: WizardViewController, item: WizardViewController.Item) -> UIBezierPath
func layoutWizardCard(_ wizardViewController: WizardViewController, item: WizardViewController.Item)
}
class WizardViewController: UIViewController {
let logger = Logger(subsystem: "Wizard", category: "UI")
var disposeBag = Set<AnyCancellable>()
weak var delegate: WizardViewControllerDelegate?
private(set) var items: [Item] = {
var items: [Item] = []
if !UserDefaults.shared.didShowMultipleAccountSwitchWizard {
items.append(.multipleAccountSwitch)
}
return items
}()
let pendingItem = CurrentValueSubject<Item?, Never>(nil)
let currentItem = CurrentValueSubject<Item?, Never>(nil)
let backgroundView: UIView = {
let view = UIView()
view.backgroundColor = UIColor.black.withAlphaComponent(0.5)
return view
}()
deinit {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
}
}
extension WizardViewController {
override func viewDidLoad() {
super.viewDidLoad()
setup()
let backgroundTapGestureRecognizer = UITapGestureRecognizer.singleTapGestureRecognizer
backgroundTapGestureRecognizer.addTarget(self, action: #selector(WizardViewController.backgroundTapGestureRecognizerHandler(_:)))
backgroundView.addGestureRecognizer(backgroundTapGestureRecognizer)
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
// Create a timer to consume pending item
Timer.publish(every: 0.5, on: .main, in: .default)
.autoconnect()
.receive(on: DispatchQueue.main)
.sink { [weak self] _ in
guard let self = self else { return }
guard self.pendingItem.value != nil else { return }
self.consume()
}
.store(in: &disposeBag)
consume()
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
invalidLayoutForCurrentItem()
}
override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
super.viewWillTransition(to: size, with: coordinator)
coordinator.animate { context in
} completion: { [weak self] context in
guard let self = self else { return }
self.invalidLayoutForCurrentItem()
}
}
}
extension WizardViewController {
enum Item {
case multipleAccountSwitch
var title: String {
return L10n.Scene.Wizard.newInMastodon
}
var description: String {
switch self {
case .multipleAccountSwitch:
return L10n.Scene.Wizard.multipleAccountSwitchIntroDescription
}
}
func markAsRead() {
switch self {
case .multipleAccountSwitch:
UserDefaults.shared.didShowMultipleAccountSwitchWizard = true
}
}
}
}
extension WizardViewController {
func setup() {
assert(delegate != nil, "need set delegate before use")
guard !items.isEmpty else { return }
backgroundView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
backgroundView.frame = view.bounds
view.addSubview(backgroundView)
}
func destroy() {
view.removeFromSuperview()
}
func consume() {
guard !items.isEmpty else {
destroy()
return
}
guard let first = items.first else { return }
guard delegate?.readyToLayoutItem(self, item: first) == true else {
pendingItem.value = first
return
}
pendingItem.value = nil
currentItem.value = nil
let item = items.removeFirst()
perform(item: item)
}
private func perform(item: Item) {
guard let delegate = delegate else {
assertionFailure()
return
}
// prepare for reuse
prepareForReuse()
// set wizard item read
item.markAsRead()
// add spotlight
let spotlight = delegate.layoutSpotlight(self, item: item)
let maskLayer = CAShapeLayer()
// expand rect to make sure view always fill the screen when device rotate
let expandRect: CGRect = {
var rect = backgroundView.bounds
rect.size.width *= 2
rect.size.height *= 2
return rect
}()
let path = UIBezierPath(rect: expandRect)
path.append(spotlight)
maskLayer.fillRule = .evenOdd
maskLayer.path = path.cgPath
backgroundView.layer.mask = maskLayer
// layout wizard card
delegate.layoutWizardCard(self, item: item)
currentItem.value = item
}
private func prepareForReuse() {
backgroundView.subviews.forEach { subview in
subview.removeFromSuperview()
}
backgroundView.mask = nil
backgroundView.layer.mask = nil
}
private func invalidLayoutForCurrentItem() {
if let item = currentItem.value {
perform(item: item)
}
}
}
extension WizardViewController {
@objc private func backgroundTapGestureRecognizerHandler(_ sender: UITapGestureRecognizer) {
logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public)")
consume()
}
}