103 lines
2.9 KiB
Swift
103 lines
2.9 KiB
Swift
//
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// ExperimentalFeaturesView.swift
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// Delta
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//
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// Created by Riley Testut on 4/5/23.
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// Copyright © 2023 Riley Testut. All rights reserved.
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//
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import SwiftUI
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import Combine
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import DeltaFeatures
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extension ExperimentalFeaturesView
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{
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private class ViewModel: ObservableObject
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{
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@Published
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var sortedFeatures: [any AnyFeature]
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init()
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{
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// Sort features alphabetically by name.
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self.sortedFeatures = ExperimentalFeatures.shared.allFeatures.sorted { (featureA, featureB) in
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return String(describing: featureA.name) < String(describing: featureB.name)
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}
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}
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}
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}
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struct ExperimentalFeaturesView: View
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{
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@StateObject
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private var viewModel: ViewModel = ViewModel()
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private var localizedTitle: String { NSLocalizedString("Experimental Features", comment: "") }
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var body: some View {
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Form {
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Section(content: {}, footer: {
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Text("These features have been added by contributors to the open-source Delta project on GitHub and are currently being tested.\n\nYou may encounter bugs when using these features.")
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.font(.subheadline)
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})
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ForEach(viewModel.sortedFeatures, id: \.key) { feature in
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section(for: feature)
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}
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}
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.listStyle(.insetGrouped)
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.navigationTitle(localizedTitle)
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.navigationBarTitleDisplayMode(.inline)
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}
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// Cannot open existential if return type uses concrete type T in non-covariant position (e.g. Box<T>).
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// So instead we erase return type to AnyView.
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private func section<T: AnyFeature>(for feature: T) -> AnyView
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{
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let section = FeatureSection(feature: feature)
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return AnyView(section)
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}
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}
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extension ExperimentalFeaturesView
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{
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static func makeViewController() -> UIHostingController<some View>
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{
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let experimentalFeaturesView = ExperimentalFeaturesView()
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let hostingController = UIHostingController(rootView: experimentalFeaturesView)
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hostingController.navigationItem.largeTitleDisplayMode = .never
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hostingController.navigationItem.title = experimentalFeaturesView.localizedTitle
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return hostingController
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}
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}
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private struct FeatureSection<T: AnyFeature>: View
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{
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@ObservedObject
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var feature: T
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var body: some View {
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Section {
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NavigationLink(destination: FeatureDetailView(feature: feature)) {
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HStack {
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Text(feature.name)
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Spacer()
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if feature.isEnabled
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{
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Text("On")
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.foregroundColor(.secondary)
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}
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}
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}
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} footer: {
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if let description = feature.description
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{
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Text(description)
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}
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}
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}
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}
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