112 lines
4.6 KiB
Swift
112 lines
4.6 KiB
Swift
// Copyright © 2023 Rangeproof Pty Ltd. All rights reserved.
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import UIKit
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import Combine
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import SessionUIKit
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import SessionUtilitiesKit
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import SignalUtilitiesKit
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// MARK: - NavigatableStateHolder
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public protocol NavigatableStateHolder {
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var navigatableState: NavigatableState { get }
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}
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public extension NavigatableStateHolder {
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func showToast(text: String, backgroundColor: ThemeValue = .backgroundPrimary) {
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navigatableState._showToast.send((text, backgroundColor))
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}
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func dismissScreen(type: DismissType = .auto) {
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navigatableState._dismissScreen.send(type)
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}
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func transitionToScreen(_ viewController: UIViewController, transitionType: TransitionType = .push) {
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navigatableState._transitionToScreen.send((viewController, transitionType))
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}
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}
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// MARK: - NavigatableState
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public struct NavigatableState {
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let showToast: AnyPublisher<(String, ThemeValue), Never>
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let transitionToScreen: AnyPublisher<(UIViewController, TransitionType), Never>
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let dismissScreen: AnyPublisher<DismissType, Never>
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// MARK: - Internal Variables
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fileprivate let _showToast: PassthroughSubject<(String, ThemeValue), Never> = PassthroughSubject()
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fileprivate let _transitionToScreen: PassthroughSubject<(UIViewController, TransitionType), Never> = PassthroughSubject()
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fileprivate let _dismissScreen: PassthroughSubject<DismissType, Never> = PassthroughSubject()
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// MARK: - Initialization
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init() {
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self.showToast = _showToast.shareReplay(0)
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self.transitionToScreen = _transitionToScreen.shareReplay(0)
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self.dismissScreen = _dismissScreen.shareReplay(0)
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}
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// MARK: - Functions
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public func setupBindings(
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viewController: UIViewController,
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disposables: inout Set<AnyCancellable>
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) {
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self.showToast
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.receive(on: DispatchQueue.main)
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.sink { [weak viewController] text, color in
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guard let view: UIView = viewController?.view else { return }
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let toastController: ToastController = ToastController(text: text, background: color)
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toastController.presentToastView(fromBottomOfView: view, inset: Values.largeSpacing)
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}
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.store(in: &disposables)
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self.transitionToScreen
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.receive(on: DispatchQueue.main)
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.sink { [weak viewController] targetViewController, transitionType in
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switch transitionType {
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case .push:
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viewController?.navigationController?.pushViewController(targetViewController, animated: true)
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case .present:
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let presenter: UIViewController? = (viewController?.presentedViewController ?? viewController)
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if UIDevice.current.isIPad {
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targetViewController.popoverPresentationController?.permittedArrowDirections = []
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targetViewController.popoverPresentationController?.sourceView = presenter?.view
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targetViewController.popoverPresentationController?.sourceRect = (presenter?.view.bounds ?? UIScreen.main.bounds)
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}
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presenter?.present(targetViewController, animated: true)
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}
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}
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.store(in: &disposables)
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self.dismissScreen
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.receive(on: DispatchQueue.main)
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.sink { [weak viewController] dismissType in
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switch dismissType {
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case .auto:
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guard
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let viewController: UIViewController = viewController,
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(viewController.navigationController?.viewControllers
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.firstIndex(of: viewController))
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.defaulting(to: 0) > 0
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else {
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viewController?.dismiss(animated: true)
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return
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}
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viewController.navigationController?.popViewController(animated: true)
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case .dismiss: viewController?.dismiss(animated: true)
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case .pop: viewController?.navigationController?.popViewController(animated: true)
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case .popToRoot: viewController?.navigationController?.popToRootViewController(animated: true)
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}
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}
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.store(in: &disposables)
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}
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}
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