99 lines
3.5 KiB
Swift
99 lines
3.5 KiB
Swift
//
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// AlertViewController.swift
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// VDS
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//
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// Created by Matt Bruce on 6/24/24.
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//
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import Foundation
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import UIKit
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import Combine
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import VDSCoreTokens
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@objcMembers
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@objc(VDSAlertViewController)
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open class AlertViewController: UIViewController, Surfaceable {
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/// Set of Subscribers for any Publishers for this Control.
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open var subscribers = Set<AnyCancellable>()
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//--------------------------------------------------
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// MARK: - Private Properties
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//--------------------------------------------------
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private var onClickSubscriber: AnyCancellable? {
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willSet {
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if let onClickSubscriber {
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onClickSubscriber.cancel()
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}
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}
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}
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//--------------------------------------------------
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// MARK: - Public Properties
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//--------------------------------------------------
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/// Current Surface and this is used to pass down to child objects that implement Surfacable
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open var surface: Surface = .light { didSet { updateView() }}
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open var presenter: UIView? { didSet { updateView() }}
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open var dialog: UIView!
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//--------------------------------------------------
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// MARK: - Configuration
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//--------------------------------------------------
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private let backgroundColorConfiguration = SurfaceColorConfiguration(VDSColor.backgroundPrimaryDark, VDSColor.backgroundPrimaryLight)
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//--------------------------------------------------
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// MARK: - Lifecycle
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//--------------------------------------------------
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open override func viewDidLoad() {
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super.viewDidLoad()
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isModalInPresentation = true
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setup()
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}
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open override func viewDidAppear(_ animated: Bool) {
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super.viewDidAppear(animated)
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UIAccessibility.post(notification: .screenChanged, argument: dialog)
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}
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private func dismiss() {
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dismiss(animated: true) { [weak self] in
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guard let self, let presenter else { return }
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UIAccessibility.post(notification: .layoutChanged, argument: presenter)
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}
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}
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open func setup() {
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guard let dialog else { return }
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view.accessibilityElements = [dialog]
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view.addSubview(dialog)
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// Activate constraints
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NSLayoutConstraint.activate([
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// Constraints for the floating modal view
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dialog.centerXAnchor.constraint(equalTo: view.centerXAnchor),
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dialog.centerYAnchor.constraint(equalTo: view.centerYAnchor),
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dialog.leadingAnchor.constraint(greaterThanOrEqualTo: view.leadingAnchor, constant: 10),
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dialog.trailingAnchor.constraint(lessThanOrEqualTo: view.trailingAnchor, constant: -10),
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dialog.topAnchor.constraint(greaterThanOrEqualTo: view.topAnchor, constant: 10),
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dialog.bottomAnchor.constraint(lessThanOrEqualTo: view.bottomAnchor, constant: -10)
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])
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}
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open override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
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guard let touch = touches.first else { return }
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let location = touch.location(in: view)
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if dialog.frame.contains(location) {
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super.touchesBegan(touches, with: event)
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} else {
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dismiss()
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}
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}
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/// Used to make changes to the View based off a change events or from local properties.
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open func updateView() {
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view.backgroundColor = backgroundColorConfiguration.getColor(self).withAlphaComponent(0.3)
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if var dialog = dialog as? Surfaceable {
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dialog.surface = surface
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}
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}
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}
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