Implement basic UI for notification-settings-screen (IOS-14)

No functionality (yet), but all relevant classes and protocols are there.

Mastodon.xcodeproj/project.pbxproj

@@ -136,6 +136,7 @@
 		D81A22782AB4782400905D71 /* SearchResultOverviewSection.swift in Sources */ = {isa = PBXBuildFile; fileRef = D81A22772AB4782400905D71 /* SearchResultOverviewSection.swift */; };
 		D81A227B2AB47B9A00905D71 /* SearchResultDefaultSectionTableViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D81A227A2AB47B9A00905D71 /* SearchResultDefaultSectionTableViewCell.swift */; };
 		D82BD7532ABC44C2009A374A /* Coordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8F9170E2A4B47EF008A5370 /* Coordinator.swift */; };
+		D81D12462A4E1861005009D4 /* PolicySelectionViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D81D12452A4E1861005009D4 /* PolicySelectionViewController.swift */; };
 		D81D124B2A4E1914005009D4 /* ToggleTableViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D81D124A2A4E1914005009D4 /* ToggleTableViewCell.swift */; };
 		D8318A802A4466D300C0FB73 /* SettingsCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8318A7F2A4466D300C0FB73 /* SettingsCoordinator.swift */; };
 		D8318A862A4468C700C0FB73 /* SettingsViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8318A852A4468C700C0FB73 /* SettingsViewController.swift */; };
@@ -149,6 +150,10 @@
 		D886FBD329DF710F00272017 /* WelcomeSeparatorView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D886FBD229DF710F00272017 /* WelcomeSeparatorView.swift */; };
 		D8916DC029211BE500124085 /* ContentSizedTableView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8916DBF29211BE500124085 /* ContentSizedTableView.swift */; };
 		D8A6AB6C291C5136003AB663 /* MastodonLoginViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8A6AB6B291C5136003AB663 /* MastodonLoginViewController.swift */; };
+		D8B5E4EE2A4EB8930008970C /* NotificationSettingTableViewToggleCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8B5E4ED2A4EB8920008970C /* NotificationSettingTableViewToggleCell.swift */; };
+		D8B5E4F02A4EB8A00008970C /* NotificationSettingTableViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8B5E4EF2A4EB8A00008970C /* NotificationSettingTableViewCell.swift */; };
+		D8B5E4F22A4EBCF90008970C /* NotificationSettings.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8B5E4F12A4EBCF90008970C /* NotificationSettings.swift */; };
+		D8B5E4F42A4ED0240008970C /* NotificationSettingsViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8B5E4F32A4ED0240008970C /* NotificationSettingsViewModel.swift */; };
 		D8BE30B32A179E26006B8270 /* SuggestionAccountTableViewFooter.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8BE30B22A179E26006B8270 /* SuggestionAccountTableViewFooter.swift */; };
 		D8BEBCB62A1B7FFD0004F475 /* SuggestionAccountTableViewCell+ViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8BEBCB52A1B7FFD0004F475 /* SuggestionAccountTableViewCell+ViewModel.swift */; };
 		D8D688F62AB869CB000F651A /* SearchResultsProfileTableViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D8D688F52AB869CB000F651A /* SearchResultsProfileTableViewCell.swift */; };
@@ -787,6 +792,7 @@
 		D82463542A52B47B00A3DBDD /* be */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = be; path = be.lproj/InfoPlist.strings; sourceTree = "<group>"; };
 		D82463552A52B47B00A3DBDD /* be */ = {isa = PBXFileReference; lastKnownFileType = text.plist.stringsdict; name = be; path = be.lproj/Intents.stringsdict; sourceTree = "<group>"; };
 		D82BD7512ABC42D6009A374A /* Coordinator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Coordinator.swift; sourceTree = "<group>"; };
+		D81D12452A4E1861005009D4 /* PolicySelectionViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PolicySelectionViewController.swift; sourceTree = "<group>"; };
 		D81D124A2A4E1914005009D4 /* ToggleTableViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ToggleTableViewCell.swift; sourceTree = "<group>"; };
 		D8318A7F2A4466D300C0FB73 /* SettingsCoordinator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SettingsCoordinator.swift; sourceTree = "<group>"; };
 		D8318A832A4468A800C0FB73 /* GeneralSettingsViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GeneralSettingsViewController.swift; sourceTree = "<group>"; };
@@ -811,6 +817,10 @@
 		D8A6FE6429325F5900666A47 /* StringsConvertor */ = {isa = PBXFileReference; lastKnownFileType = wrapper; path = StringsConvertor; sourceTree = "<group>"; };
 		D8A6FE6529325F5900666A47 /* ios-infoPlist.json */ = {isa = PBXFileReference; lastKnownFileType = text.json; path = "ios-infoPlist.json"; sourceTree = "<group>"; };
 		D8A6FE6629325F5900666A47 /* Localizable.stringsdict */ = {isa = PBXFileReference; lastKnownFileType = text.plist.stringsdict; path = Localizable.stringsdict; sourceTree = "<group>"; };
+		D8B5E4ED2A4EB8920008970C /* NotificationSettingTableViewToggleCell.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NotificationSettingTableViewToggleCell.swift; sourceTree = "<group>"; };
+		D8B5E4EF2A4EB8A00008970C /* NotificationSettingTableViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NotificationSettingTableViewCell.swift; sourceTree = "<group>"; };
+		D8B5E4F12A4EBCF90008970C /* NotificationSettings.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NotificationSettings.swift; sourceTree = "<group>"; };
+		D8B5E4F32A4ED0240008970C /* NotificationSettingsViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NotificationSettingsViewModel.swift; sourceTree = "<group>"; };
 		D8BE30B22A179E26006B8270 /* SuggestionAccountTableViewFooter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SuggestionAccountTableViewFooter.swift; sourceTree = "<group>"; };
 		D8BEBCB52A1B7FFD0004F475 /* SuggestionAccountTableViewCell+ViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "SuggestionAccountTableViewCell+ViewModel.swift"; sourceTree = "<group>"; };
 		D8D688F52AB869CB000F651A /* SearchResultsProfileTableViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SearchResultsProfileTableViewCell.swift; sourceTree = "<group>"; };
@@ -1755,10 +1765,10 @@
 				D81D12492A4E190A005009D4 /* Shared */,
 				D8F916FF2A4AD898008A5370 /* Settings Overview */,
 				D8F917042A4B0657008A5370 /* General Settings */,
+				D81D12432A4E181C005009D4 /* Notification Settings */,
 				D8F917092A4B2AFF008A5370 /* About Mastodon */,
 				D8318A7E2A4466C900C0FB73 /* Legacy */,
 				D8318A7F2A4466D300C0FB73 /* SettingsCoordinator.swift */,
-				D8318A872A4468D300C0FB73 /* NotificationSettingsViewController.swift */,
 				D8318A8B2A4468E600C0FB73 /* SupportMastodonViewController.swift */,
 			);
 			path = Settings;
@@ -1835,6 +1845,19 @@
 			path = Cells;
 			sourceTree = "<group>";
 		};
+		D81D12432A4E181C005009D4 /* Notification Settings */ = {
+			isa = PBXGroup;
+			children = (
+				D8318A872A4468D300C0FB73 /* NotificationSettingsViewController.swift */,
+				D8B5E4ED2A4EB8920008970C /* NotificationSettingTableViewToggleCell.swift */,
+				D8B5E4EF2A4EB8A00008970C /* NotificationSettingTableViewCell.swift */,
+				D8B5E4F12A4EBCF90008970C /* NotificationSettings.swift */,
+				D8B5E4F32A4ED0240008970C /* NotificationSettingsViewModel.swift */,
+				D81D12452A4E1861005009D4 /* PolicySelectionViewController.swift */,
+			);
+			path = "Notification Settings";
+			sourceTree = "<group>";
+		};
 		D81D12492A4E190A005009D4 /* Shared */ = {
 			isa = PBXGroup;
 			children = (
@@ -3658,6 +3681,7 @@
 				DB63F767279A5EB300455B82 /* NotificationTimelineViewModel.swift in Sources */,
 				2D607AD826242FC500B70763 /* NotificationViewModel.swift in Sources */,
 				DB5B54AB2833C12A00DEF8B2 /* RebloggedByViewController.swift in Sources */,
+				D81D12462A4E1861005009D4 /* PolicySelectionViewController.swift in Sources */,
 				DB848E33282B62A800A302CC /* ReportResultView.swift in Sources */,
 				DBABE3EC25ECAC4B00879EE5 /* WelcomeIllustrationView.swift in Sources */,
 				DB0FCB9C27980AB6006C02E2 /* HashtagTimelineViewController+DataSourceProvider.swift in Sources */,
@@ -3708,6 +3732,7 @@
 				DB6180F426391D110018D199 /* MediaPreviewImageView.swift in Sources */,
 				DBF9814A265E24F500E4BA07 /* ProfileFieldCollectionViewHeaderFooterView.swift in Sources */,
 				2D939AB525EDD8A90076FA61 /* String.swift in Sources */,
+				D8B5E4F22A4EBCF90008970C /* NotificationSettings.swift in Sources */,
 				DB4481B925EE289600BEFB67 /* UITableView.swift in Sources */,
 				DB5B54B02833C24200DEF8B2 /* FavoritedByViewController+DataSourceProvider.swift in Sources */,
 				DBE3CDBB261C427900430CC6 /* TimelineHeaderTableViewCell.swift in Sources */,
@@ -3739,6 +3764,7 @@
 				DB5B549D2833A67400DEF8B2 /* FamiliarFollowersViewModel.swift in Sources */,
 				DBB9759C262462E1004620BD /* ThreadMetaView.swift in Sources */,
 				DB5B729E273113F300081888 /* FollowingListViewModel+State.swift in Sources */,
+				D8B5E4F02A4EB8A00008970C /* NotificationSettingTableViewCell.swift in Sources */,
 				DBF9814C265E339500E4BA07 /* ProfileFieldAddEntryCollectionViewCell.swift in Sources */,
 				DB63F76227996B6600455B82 /* SearchHistoryViewController+DataSourceProvider.swift in Sources */,
 				DBA5E7AB263BD3F5004598BB /* TimelineTableViewCellContextMenuConfiguration.swift in Sources */,
@@ -3921,6 +3947,7 @@
 				DB0FCB862796BDA1006C02E2 /* SearchSection.swift in Sources */,
 				DB1D61CF26F1B33600DA8662 /* WelcomeViewModel.swift in Sources */,
 				D8BEBCB62A1B7FFD0004F475 /* SuggestionAccountTableViewCell+ViewModel.swift in Sources */,
+				D8B5E4F42A4ED0240008970C /* NotificationSettingsViewModel.swift in Sources */,
 				DBD376B2269302A4007FEC24 /* UITableViewCell.swift in Sources */,
 				DB4F0966269ED52200D62E92 /* SearchResultViewModel.swift in Sources */,
 				D8F917142A4D74C3008A5370 /* GeneralSettingsDiffableTableViewDataSource.swift in Sources */,
@@ -3960,6 +3987,7 @@
 				DBDFF19A28055A1400557A48 /* DiscoveryViewController.swift in Sources */,
 				DB9D6BFF25E4F5940051B173 /* ProfileViewController.swift in Sources */,
 				D8F917112A4C6B40008A5370 /* GeneralSettingToggleTableViewCell.swift in Sources */,
+				D8B5E4EE2A4EB8930008970C /* NotificationSettingTableViewToggleCell.swift in Sources */,
 				DB3EA8F1281B9EF600598866 /* DiscoveryCommunityViewModel+Diffable.swift in Sources */,
 				D8318A8A2A4468DC00C0FB73 /* AboutViewController.swift in Sources */,
 				85BC11B32932414900E191CD /* AltTextViewController.swift in Sources */,

Mastodon/Scene/Settings/Notification Settings/NotificationSettingTableViewCell.swift

@@ -0,0 +1,24 @@
+// Copyright © 2023 Mastodon gGmbH. All rights reserved.
+
+import UIKit
+
+class NotificationSettingTableViewCell: UITableViewCell {
+    static let reuseIdentifier = "NotificationSettingTableViewCell"
+
+    func configure(with entry: NotificationSettingEntry, viewModel: NotificationSettingsViewModel) {
+
+        switch entry {
+        case.alert(_):
+            // we use toggle cells for these
+            break
+        case .policy:
+            var content = UIListContentConfiguration.valueCell()
+            //TODO: @zeitschlag Localization
+            content.text = "Get Notifications from"
+            content.secondaryText = viewModel.selectedPolicy.title
+
+            contentConfiguration = content
+        }
+    }
+
+}

Mastodon/Scene/Settings/Notification Settings/NotificationSettingTableViewToggleCell.swift

@@ -0,0 +1,37 @@
+// Copyright © 2023 Mastodon gGmbH. All rights reserved.
+
+import UIKit
+
+protocol NotificationSettingToggleCellDelegate: AnyObject {
+    
+}
+
+class NotificationSettingTableViewToggleCell: ToggleTableViewCell {
+
+    override class var reuseIdentifier: String {
+        return "NotificationSettingToggleCell"
+    }
+
+    var alert: NotificationAlert?
+
+    weak var delegate: NotificationSettingToggleCellDelegate?
+
+    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
+        super.init(style: style, reuseIdentifier: reuseIdentifier)
+
+        toggle.addTarget(self, action: #selector(NotificationSettingTableViewToggleCell.toggleValueChanged(_:)), for: .valueChanged)
+    }
+
+    required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
+
+    func configure(with alert: NotificationAlert, viewModel: NotificationSettingsViewModel) {
+        self.alert = alert
+
+        label.text = alert.title
+    }
+
+    @objc
+    func toggleValueChanged(_ sender: UISwitch) {
+        
+    }
+}

Mastodon/Scene/Settings/Notification Settings/NotificationSettings.swift

@@ -0,0 +1,53 @@
+// Copyright © 2023 Mastodon gGmbH. All rights reserved.
+
+import Foundation
+
+struct NotificationSettingsSection: Hashable {
+    let entries: [NotificationSettingEntry]
+}
+
+enum NotificationSettingEntry: Hashable {
+    case policy
+    case alert(NotificationAlert)
+}
+
+enum NotificationPolicy: Hashable {
+    case anyone
+    case followers
+    case follow
+    case noone
+
+    var title: String {
+        switch self {
+        case .anyone:
+            return "Anyone"
+        case .followers:
+            return "People who follow you"
+        case .follow:
+            return "People you follow"
+        case .noone:
+            return "No one"
+        }
+    }
+}
+
+enum NotificationAlert: Hashable, CaseIterable {
+    case mentionsAndReplies
+    case boosts
+    case favorites
+    case newFollowers
+
+    var title: String {
+        switch self {
+
+        case .mentionsAndReplies:
+            return "Mentions & Replies"
+        case .boosts:
+            return "Boosts"
+        case .favorites:
+            return "Favorites"
+        case .newFollowers:
+            return "New Followers"
+        }
+    }
+}

Mastodon/Scene/Settings/Notification Settings/NotificationSettingsViewController.swift

@@ -0,0 +1,103 @@
+// Copyright © 2023 Mastodon gGmbH. All rights reserved.
+
+import UIKit
+
+protocol NotificationSettingsViewControllerDelegate: AnyObject {
+    func showPolicyList(_ viewController: UIViewController, viewModel: NotificationSettingsViewModel)
+}
+
+class NotificationSettingsViewController: UIViewController {
+
+    weak var delegate: NotificationSettingsViewControllerDelegate?
+
+    let tableView: UITableView
+    var tableViewDataSource: UITableViewDiffableDataSource<NotificationSettingsSection, NotificationSettingEntry>?
+
+    let sections: [NotificationSettingsSection]
+    var viewModel: NotificationSettingsViewModel
+
+    init() {
+
+        //TODO: @zeitschlag Read Settings
+        viewModel = NotificationSettingsViewModel(selectedPolicy: .follow)
+        sections = [
+            NotificationSettingsSection(entries: [
+                .policy
+            ]),
+            NotificationSettingsSection(entries: NotificationAlert.allCases.map { NotificationSettingEntry.alert($0) } )
+        ]
+
+        tableView = UITableView(frame: .zero, style: .insetGrouped)
+        tableView.translatesAutoresizingMaskIntoConstraints = false
+        tableView.register(NotificationSettingTableViewCell.self, forCellReuseIdentifier: NotificationSettingTableViewCell.reuseIdentifier)
+        tableView.register(NotificationSettingTableViewToggleCell.self, forCellReuseIdentifier: NotificationSettingTableViewToggleCell.reuseIdentifier)
+
+        super.init(nibName: nil, bundle: nil)
+
+        let tableViewDataSource = UITableViewDiffableDataSource<NotificationSettingsSection, NotificationSettingEntry>(tableView: tableView) { [ weak self] tableView, indexPath, itemIdentifier in
+
+            let cell: UITableViewCell
+
+            switch itemIdentifier {
+            case .policy:
+                guard let self,
+                      let notificationCell = tableView.dequeueReusableCell(withIdentifier: NotificationSettingTableViewCell.reuseIdentifier, for: indexPath) as? NotificationSettingTableViewCell else { fatalError("WTF Wrong cell!?") }
+
+                notificationCell.configure(with: .policy, viewModel: viewModel)
+                cell = notificationCell
+
+            case .alert(let alert):
+                guard let self,
+                      let toggleCell = tableView.dequeueReusableCell(withIdentifier: NotificationSettingTableViewToggleCell.reuseIdentifier, for: indexPath) as? NotificationSettingTableViewToggleCell else { fatalError("WTF Wrong cell!?") }
+
+                toggleCell.configure(with: alert, viewModel: self.viewModel)
+                toggleCell.delegate = self
+                cell = toggleCell
+            }
+
+            return cell
+        }
+
+        tableView.dataSource = tableViewDataSource
+        tableView.delegate = self
+        self.tableViewDataSource = tableViewDataSource
+
+        view.backgroundColor = .systemGroupedBackground
+        view.addSubview(tableView)
+        tableView.pinToParent()
+
+        title = "Notifications"
+    }
+    
+    required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        var snapshot = NSDiffableDataSourceSnapshot<NotificationSettingsSection, NotificationSettingEntry>()
+
+        for section in sections {
+            snapshot.appendSections([section])
+            snapshot.appendItems(section.entries)
+        }
+
+        tableViewDataSource?.apply(snapshot, animatingDifferences: false)
+    }
+}
+
+extension NotificationSettingsViewController: UITableViewDelegate {
+    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+
+        let entry = sections[indexPath.section].entries[indexPath.row]
+
+        if case let .policy = entry {
+            delegate?.showPolicyList(self, viewModel: viewModel)
+        }
+
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+}
+
+extension NotificationSettingsViewController: NotificationSettingToggleCellDelegate {
+    
+}

Mastodon/Scene/Settings/Notification Settings/NotificationSettingsViewModel.swift

@@ -0,0 +1,7 @@
+// Copyright © 2023 Mastodon gGmbH. All rights reserved.
+
+import Foundation
+
+struct NotificationSettingsViewModel {
+    var selectedPolicy: NotificationPolicy
+}

Mastodon/Scene/Settings/Notification Settings/PolicySelectionViewController.swift

@@ -0,0 +1,21 @@
+// Copyright © 2023 Mastodon gGmbH. All rights reserved.
+
+import UIKit
+
+protocol PolicySelectionViewControllerDelegate: AnyObject {
+    
+}
+
+class PolicySelectionViewController: UIViewController {
+
+    weak var delegate: PolicySelectionViewControllerDelegate?
+
+    //TODO: TableView with SubscriptionAlerts/NotificationAlert
+    init(viewModel: NotificationSettingsViewModel) {
+        super.init(nibName: nil, bundle: nil)
+
+        view.backgroundColor = .systemGroupedBackground
+    }
+    
+    required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
+}

Mastodon/Scene/Settings/NotificationSettingsViewController.swift

@@ -1,3 +0,0 @@
-// Copyright © 2023 Mastodon gGmbH. All rights reserved.
-
-import Foundation

Mastodon/Scene/Settings/SettingsCoordinator.swift

@@ -52,8 +52,10 @@ extension SettingsCoordinator: SettingsViewControllerDelegate {
 
             navigationController.pushViewController(generalSettingsViewController, animated: true)
         case .notifications:
-            break
+            let notificationViewController = NotificationSettingsViewController()
-            // show notifications
+            notificationViewController.delegate = self
+
+            navigationController.pushViewController(notificationViewController, animated: true)
         case .aboutMastodon:
             let aboutViewController = AboutViewController()
             aboutViewController.delegate = self
@@ -111,3 +113,18 @@ extension SettingsCoordinator: GeneralSettingsViewControllerDelegate {
         setting.update(preferredUsingDefaultBrowser: viewModel.selectedOpenLinks == .browser)
     }
 }
+
+//MARK: - NotificationSettingsViewControllerDelegate
+extension SettingsCoordinator: NotificationSettingsViewControllerDelegate {
+    func showPolicyList(_ viewController: UIViewController, viewModel: NotificationSettingsViewModel) {
+        let policyListViewController = PolicySelectionViewController(viewModel: viewModel)
+        policyListViewController.delegate = self
+
+        navigationController.pushViewController(policyListViewController, animated: true)
+    }
+}
+
+//MARK: - PolicySelectionViewControllerDelegate
+extension SettingsCoordinator: PolicySelectionViewControllerDelegate {
+    
+}