Keep references to identity context in view models

View Controllers/ExploreViewController.swift

@@ -7,13 +7,11 @@ import ViewModels
 final class ExploreViewController: UICollectionViewController {
     private let viewModel: ExploreViewModel
     private let rootViewModel: RootViewModel
-    private let identityContext: IdentityContext
     private var cancellables = Set<AnyCancellable>()
 
-    init(viewModel: ExploreViewModel, rootViewModel: RootViewModel, identityContext: IdentityContext) {
+    init(viewModel: ExploreViewModel, rootViewModel: RootViewModel) {
         self.viewModel = viewModel
         self.rootViewModel = rootViewModel
-        self.identityContext = identityContext
 
         super.init(collectionViewLayout: UICollectionViewFlowLayout())
 
@@ -36,7 +34,6 @@ final class ExploreViewController: UICollectionViewController {
         let searchResultsController = TableViewController(
             viewModel: viewModel.searchViewModel,
             rootViewModel: rootViewModel,
-            identityContext: identityContext,
             insetBottom: false,
             parentNavigationController: navigationController)
 

View Controllers/MainNavigationViewController.swift

@@ -60,15 +60,13 @@ private extension MainNavigationViewController {
                 rootViewModel: rootViewModel),
             ExploreViewController(
                 viewModel: viewModel.exploreViewModel,
-                rootViewModel: rootViewModel,
-                identityContext: viewModel.identityContext)
+                rootViewModel: rootViewModel)
         ]
 
         if let notificationsViewModel = viewModel.notificationsViewModel {
             let notificationsViewController = TableViewController(
                 viewModel: notificationsViewModel,
-                rootViewModel: rootViewModel,
-                identityContext: viewModel.identityContext)
+                rootViewModel: rootViewModel)
 
             notificationsViewController.tabBarItem = NavigationViewModel.Tab.notifications.tabBarItem
 
@@ -78,8 +76,7 @@ private extension MainNavigationViewController {
         if let conversationsViewModel = viewModel.conversationsViewModel {
             let conversationsViewController = TableViewController(
                 viewModel: conversationsViewModel,
-                rootViewModel: rootViewModel,
-                identityContext: viewModel.identityContext)
+                rootViewModel: rootViewModel)
 
             conversationsViewController.tabBarItem = NavigationViewModel.Tab.messages.tabBarItem
             conversationsViewController.navigationItem.title = NavigationViewModel.Tab.messages.title

View Controllers/ProfileViewController.swift

@@ -19,7 +19,6 @@ final class ProfileViewController: TableViewController {
         super.init(
             viewModel: viewModel,
             rootViewModel: rootViewModel,
-            identityContext: identityContext,
             parentNavigationController: parentNavigationController)
     }
 

View Controllers/TableViewController.swift

@@ -13,7 +13,6 @@ class TableViewController: UITableViewController {
 
     private let viewModel: CollectionViewModel
     private let rootViewModel: RootViewModel
-    private let identityContext: IdentityContext
     private let loadingTableFooterView = LoadingTableFooterView()
     private let webfingerIndicatorView = WebfingerIndicatorView()
     @Published private var loading = false
@@ -30,12 +29,10 @@ class TableViewController: UITableViewController {
 
     init(viewModel: CollectionViewModel,
          rootViewModel: RootViewModel,
-         identityContext: IdentityContext,
          insetBottom: Bool = true,
          parentNavigationController: UINavigationController? = nil) {
         self.viewModel = viewModel
         self.rootViewModel = rootViewModel
-        self.identityContext = identityContext
         self.insetBottom = insetBottom
         self.parentNavigationController = parentNavigationController
 
@@ -130,7 +127,7 @@ class TableViewController: UITableViewController {
 
         return cellHeightCaches[tableView.frame.width]?[item]
             ?? item.estimatedHeight(width: tableView.readableContentGuide.layoutFrame.width,
-                                    identityContext: identityContext)
+                                    identityContext: viewModel.identityContext)
     }
 
     override func tableView(_ tableView: UITableView, shouldHighlightRowAt indexPath: IndexPath) -> Bool {
@@ -346,10 +343,9 @@ private extension TableViewController {
             let vc = TableViewController(
                 viewModel: CollectionItemsViewModel(
                     collectionService: collectionService,
-                    identityContext: identityContext),
+                    identityContext: viewModel.identityContext),
                 rootViewModel: rootViewModel,
-                identityContext: identityContext,
-            parentNavigationController: parentNavigationController)
+                parentNavigationController: parentNavigationController)
 
             if let parentNavigationController = parentNavigationController {
                 parentNavigationController.pushViewController(vc, animated: true)
@@ -360,9 +356,9 @@ private extension TableViewController {
             let vc = ProfileViewController(
                 viewModel: ProfileViewModel(
                     profileService: profileService,
-                    identityContext: identityContext),
+                    identityContext: viewModel.identityContext),
                 rootViewModel: rootViewModel,
-                identityContext: identityContext,
+                identityContext: viewModel.identityContext,
                 parentNavigationController: parentNavigationController)
 
             if let parentNavigationController = parentNavigationController {
@@ -420,7 +416,7 @@ private extension TableViewController {
 
     func compose(inReplyToViewModel: StatusViewModel?, redraft: Status?) {
         let newStatusViewModel = rootViewModel.newStatusViewModel(
-            identityContext: identityContext,
+            identityContext: viewModel.identityContext,
             inReplyTo: inReplyToViewModel,
             redraft: redraft)
         let newStatusViewController =  NewStatusViewController(viewModel: newStatusViewModel)

View Controllers/TimelinesViewController.swift

@@ -21,8 +21,7 @@ final class TimelinesViewController: UIPageViewController {
             timelineViewControllers.append(
                 TableViewController(
                     viewModel: viewModel.viewModel(timeline: timeline),
-                    rootViewModel: rootViewModel,
-                    identityContext: viewModel.identityContext))
+                    rootViewModel: rootViewModel))
             segmentedControl.insertSegment(withTitle: timeline.title, at: index, animated: false)
         }
 
@@ -76,8 +75,7 @@ final class TimelinesViewController: UIPageViewController {
 
             let vc = TableViewController(
                 viewModel: self.viewModel.viewModel(timeline: $0),
-                rootViewModel: self.rootViewModel,
-                identityContext: self.viewModel.identityContext)
+                rootViewModel: self.rootViewModel)
 
             vc.navigationItem.title = $0.title
 

ViewModels/Sources/ViewModels/View Models/AccountViewModel.swift

@@ -7,9 +7,9 @@ import ServiceLayer
 
 public struct AccountViewModel: CollectionItemViewModel {
     public let events: AnyPublisher<AnyPublisher<CollectionItemEvent, Error>, Never>
+    public let identityContext: IdentityContext
 
     private let accountService: AccountService
-    private let identityContext: IdentityContext
     private let eventsSubject = PassthroughSubject<AnyPublisher<CollectionItemEvent, Error>, Never>()
 
     init(accountService: AccountService, identityContext: IdentityContext) {

ViewModels/Sources/ViewModels/View Models/AttachmentViewModel.swift

@@ -10,8 +10,8 @@ public final class AttachmentViewModel: ObservableObject {
     @Published public var editingDescription: String
     @Published public var editingFocus: Attachment.Meta.Focus
     @Published public private(set) var descriptionRemainingCharacters = AttachmentViewModel.descriptionMaxCharacters
+    public let identityContext: IdentityContext
 
-    private let identityContext: IdentityContext
     private let status: Status?
 
     init(attachment: Attachment, identityContext: IdentityContext, status: Status? = nil) {

ViewModels/Sources/ViewModels/View Models/CollectionItemsViewModel.swift

@@ -7,6 +7,7 @@ import ServiceLayer
 
 // swiftlint:disable file_length
 public class CollectionItemsViewModel: ObservableObject {
+    public let identityContext: IdentityContext
     @Published public var alertItem: AlertItem?
     public private(set) var nextPageMaxId: String?
 
@@ -15,7 +16,6 @@ public class CollectionItemsViewModel: ObservableObject {
         maintainScrollPositionItemId: nil,
         shouldAdjustContentInset: false)
     private let collectionService: CollectionService
-    private let identityContext: IdentityContext
     private var viewModelCache = [CollectionItem: (viewModel: CollectionItemViewModel, events: AnyCancellable)]()
     private let eventsSubject = PassthroughSubject<CollectionItemEvent, Never>()
     private let loadingSubject = PassthroughSubject<Bool, Never>()

ViewModels/Sources/ViewModels/View Models/CollectionViewModel.swift

@@ -4,6 +4,7 @@ import Combine
 import Foundation
 
 public protocol CollectionViewModel {
+    var identityContext: IdentityContext { get }
     var updates: AnyPublisher<CollectionUpdate, Never> { get }
     var title: AnyPublisher<String, Never> { get }
     var titleLocalizationComponents: AnyPublisher<[String], Never> { get }

ViewModels/Sources/ViewModels/View Models/ConversationViewModel.swift

@@ -9,9 +9,9 @@ public final class ConversationViewModel: CollectionItemViewModel, ObservableObj
     public let accountViewModels: [AccountViewModel]
     public let statusViewModel: StatusViewModel?
     public let events: AnyPublisher<AnyPublisher<CollectionItemEvent, Error>, Never>
+    public let identityContext: IdentityContext
 
     private let conversationService: ConversationService
-    private let identityContext: IdentityContext
     private let eventsSubject = PassthroughSubject<AnyPublisher<CollectionItemEvent, Error>, Never>()
 
     init(conversationService: ConversationService, identityContext: IdentityContext) {

ViewModels/Sources/ViewModels/View Models/EditFilterViewModel.swift

@@ -10,12 +10,12 @@ public final class EditFilterViewModel: ObservableObject {
     @Published public var saving = false
     @Published public var alertItem: AlertItem?
     public let saveCompleted: AnyPublisher<Void, Never>
+    public let identityContext: IdentityContext
 
     public var date: Date {
         didSet { filter.expiresAt = date }
     }
 
-    private let identityContext: IdentityContext
     private let saveCompletedSubject = PassthroughSubject<Void, Never>()
     private var cancellables = Set<AnyCancellable>()
 

ViewModels/Sources/ViewModels/View Models/ExploreViewModel.swift

@@ -5,9 +5,9 @@ import ServiceLayer
 
 public final class ExploreViewModel: ObservableObject {
     public let searchViewModel: SearchViewModel
+    public let identityContext: IdentityContext
 
     private let exploreService: ExploreService
-    private let identityContext: IdentityContext
 
     init(service: ExploreService, identityContext: IdentityContext) {
         exploreService = service

ViewModels/Sources/ViewModels/View Models/FiltersViewModel.swift

@@ -9,8 +9,8 @@ public final class FiltersViewModel: ObservableObject {
     @Published public var activeFilters = [Filter]()
     @Published public var expiredFilters = [Filter]()
     @Published public var alertItem: AlertItem?
+    public let identityContext: IdentityContext
 
-    private let identityContext: IdentityContext
     private var cancellables = Set<AnyCancellable>()
 
     public init(identityContext: IdentityContext) {

ViewModels/Sources/ViewModels/View Models/IdentitiesViewModel.swift

@@ -10,8 +10,8 @@ public final class IdentitiesViewModel: ObservableObject {
     @Published public var unauthenticated = [Identity]()
     @Published public var pending = [Identity]()
     @Published public var alertItem: AlertItem?
+    public let identityContext: IdentityContext
 
-    private let identityContext: IdentityContext
     private var cancellables = Set<AnyCancellable>()
 
     public init(identityContext: IdentityContext) {

ViewModels/Sources/ViewModels/View Models/ListsViewModel.swift

@@ -9,8 +9,8 @@ public final class ListsViewModel: ObservableObject {
     @Published public private(set) var lists = [List]()
     @Published public private(set) var creatingList = false
     @Published public var alertItem: AlertItem?
+    public let identityContext: IdentityContext
 
-    private let identityContext: IdentityContext
     private var cancellables = Set<AnyCancellable>()
 
     public init(identityContext: IdentityContext) {

ViewModels/Sources/ViewModels/View Models/MediaPreferencesViewModel.swift

@@ -5,7 +5,7 @@ import Foundation
 import ServiceLayer
 
 public final class MediaPreferencesViewModel: ObservableObject {
-    private let identityContext: IdentityContext
+    public let identityContext: IdentityContext
 
     public init(identityContext: IdentityContext) {
         self.identityContext = identityContext

ViewModels/Sources/ViewModels/View Models/NotificationTypesPreferencesViewModel.swift

@@ -8,8 +8,8 @@ import ServiceLayer
 public final class NotificationTypesPreferencesViewModel: ObservableObject {
     @Published public var pushSubscriptionAlerts: PushSubscription.Alerts
     @Published public var alertItem: AlertItem?
+    public let identityContext: IdentityContext
 
-    private let identityContext: IdentityContext
     private var cancellables = Set<AnyCancellable>()
 
     public init(identityContext: IdentityContext) {

ViewModels/Sources/ViewModels/View Models/NotificationViewModel.swift

@@ -9,9 +9,9 @@ public final class NotificationViewModel: CollectionItemViewModel, ObservableObj
     public let accountViewModel: AccountViewModel
     public let statusViewModel: StatusViewModel?
     public let events: AnyPublisher<AnyPublisher<CollectionItemEvent, Error>, Never>
+    public let identityContext: IdentityContext
 
     private let notificationService: NotificationService
-    private let identityContext: IdentityContext
     private let eventsSubject = PassthroughSubject<AnyPublisher<CollectionItemEvent, Error>, Never>()
 
     init(notificationService: NotificationService, identityContext: IdentityContext) {

ViewModels/Sources/ViewModels/View Models/PostingReadingPreferencesViewModel.swift

@@ -7,8 +7,8 @@ import ServiceLayer
 public final class PostingReadingPreferencesViewModel: ObservableObject {
     @Published public var preferences: Identity.Preferences
     @Published public var alertItem: AlertItem?
+    public let identityContext: IdentityContext
 
-    private let identityContext: IdentityContext
     private var cancellables = Set<AnyCancellable>()
 
     public init(identityContext: IdentityContext) {

ViewModels/Sources/ViewModels/View Models/PreferencesViewModel.swift

@@ -6,8 +6,7 @@ import ServiceLayer
 public final class PreferencesViewModel: ObservableObject {
     public let handle: String
     public let shouldShowNotificationTypePreferences: Bool
-
-    private let identityContext: IdentityContext
+    public let identityContext: IdentityContext
 
     public init(identityContext: IdentityContext) {
         self.identityContext = identityContext

ViewModels/Sources/ViewModels/View Models/ProfileViewModel.swift

@@ -62,6 +62,10 @@ public extension ProfileViewModel {
 }
 
 extension ProfileViewModel: CollectionViewModel {
+    public var identityContext: IdentityContext {
+        collectionViewModel.value.identityContext
+    }
+
     public var updates: AnyPublisher<CollectionUpdate, Never> {
         collectionViewModel.flatMap(\.updates).eraseToAnyPublisher()
     }

ViewModels/Sources/ViewModels/View Models/StatusViewModel.swift

@@ -19,9 +19,9 @@ public final class StatusViewModel: CollectionItemViewModel, AttachmentsRenderin
     @Published public var pollOptionSelections = Set<Int>()
     public var configuration = CollectionItem.StatusConfiguration.default
     public let events: AnyPublisher<AnyPublisher<CollectionItemEvent, Error>, Never>
+    public let identityContext: IdentityContext
 
     private let statusService: StatusService
-    private let identityContext: IdentityContext
     private let eventsSubject = PassthroughSubject<AnyPublisher<CollectionItemEvent, Error>, Never>()
 
     init(statusService: StatusService, identityContext: IdentityContext) {

Views/FiltersView.swift

@@ -6,13 +6,12 @@ import ViewModels
 
 struct FiltersView: View {
     @StateObject var viewModel: FiltersViewModel
-    @EnvironmentObject var identityContext: IdentityContext
 
     var body: some View {
         Form {
             Section {
                 NavigationLink(destination: EditFilterView(
-                                viewModel: .init(filter: .new, identityContext: identityContext))) {
+                                viewModel: .init(filter: .new, identityContext: viewModel.identityContext))) {
                     Label("add", systemImage: "plus.circle")
                 }
             }
@@ -37,7 +36,7 @@ private extension FiltersView {
             Section(header: Text(title)) {
                 ForEach(filters) { filter in
                     NavigationLink(destination: EditFilterView(
-                                    viewModel: .init(filter: filter, identityContext: identityContext))) {
+                                    viewModel: .init(filter: filter, identityContext: viewModel.identityContext))) {
                         HStack {
                             Text(filter.phrase)
                             Spacer()

Views/MainNavigationView.swift

@@ -6,7 +6,6 @@ import ViewModels
 struct MainNavigationView: UIViewControllerRepresentable {
     let viewModelClosure: () -> NavigationViewModel
     @EnvironmentObject var rootViewModel: RootViewModel
-    @EnvironmentObject var identityContext: IdentityContext
 
     func makeUIViewController(context: Context) -> MainNavigationViewController {
         MainNavigationViewController(
@@ -25,7 +24,6 @@ import PreviewViewModels
 struct MainNavigationView_Previews: PreviewProvider {
     static var previews: some View {
         MainNavigationView { NavigationViewModel(identityContext: .preview) }
-            .environmentObject(IdentityContext.preview)
             .environmentObject(RootViewModel.preview)
     }
 }

Views/MediaPreferencesView.swift

@@ -5,9 +5,14 @@ import ViewModels
 
 struct MediaPreferencesView: View {
     @StateObject var viewModel: MediaPreferencesViewModel
-    @EnvironmentObject var identityContext: IdentityContext
+    @StateObject var identityContext: IdentityContext
     @Environment(\.accessibilityReduceMotion) var accessibilityReduceMotion
 
+    init(viewModel: MediaPreferencesViewModel) {
+        _viewModel = StateObject(wrappedValue: viewModel)
+        _identityContext = StateObject(wrappedValue: viewModel.identityContext)
+    }
+
     var body: some View {
         Form {
             if accessibilityReduceMotion {

Views/PreferencesView.swift

@@ -5,21 +5,20 @@ import ViewModels
 
 struct PreferencesView: View {
     @StateObject var viewModel: PreferencesViewModel
-    @EnvironmentObject var identityContext: IdentityContext
 
     var body: some View {
         Form {
             Section(header: Text(viewModel.handle)) {
                 NavigationLink("preferences.posting-reading",
                                destination: PostingReadingPreferencesView(
-                                viewModel: .init(identityContext: identityContext)))
+                                viewModel: .init(identityContext: viewModel.identityContext)))
                 NavigationLink("preferences.filters",
                                destination: FiltersView(
-                                viewModel: .init(identityContext: identityContext)))
+                                viewModel: .init(identityContext: viewModel.identityContext)))
                 if viewModel.shouldShowNotificationTypePreferences {
                     NavigationLink("preferences.notification-types",
                                    destination: NotificationTypesPreferencesView(
-                                    viewModel: .init(identityContext: identityContext)))
+                                    viewModel: .init(identityContext: viewModel.identityContext)))
                 }
                 NavigationLink("preferences.muted-users",
                                destination: TableView(viewModelClosure: viewModel.mutedUsersViewModel)
@@ -33,9 +32,10 @@ struct PreferencesView: View {
             Section(header: Text("preferences.app")) {
                 NavigationLink("preferences.media",
                                destination: MediaPreferencesView(
-                                viewModel: .init(identityContext: identityContext)))
+                                viewModel: .init(identityContext: viewModel.identityContext)))
                 NavigationLink("preferences.startup-and-syncing",
-                               destination: StartupAndSyncingPreferencesView())
+                               destination: StartupAndSyncingPreferencesView(
+                                identityContext: viewModel.identityContext))
             }
         }
         .navigationTitle("preferences")

Views/SecondaryNavigationView.swift

@@ -14,8 +14,7 @@ struct SecondaryNavigationView: View {
             Section {
                 NavigationLink(
                     destination: IdentitiesView(viewModel: .init(identityContext: viewModel.identityContext))
-                        .environmentObject(rootViewModel)
-                        .environmentObject(viewModel.identityContext),
+                        .environmentObject(rootViewModel),
                     label: {
                         HStack {
                             KFImage(viewModel.identityContext.identity.image)
@@ -55,8 +54,7 @@ struct SecondaryNavigationView: View {
             }
             Section {
                 NavigationLink(destination: ListsView(viewModel: .init(identityContext: viewModel.identityContext))
-                                .environmentObject(rootViewModel)
-                                .environmentObject(viewModel.identityContext)) {
+                                .environmentObject(rootViewModel)) {
                     Label("secondary-navigation.lists", systemImage: "scroll")
                 }
                 ForEach([Timeline.favorites, Timeline.bookmarks]) { timeline in
@@ -74,8 +72,7 @@ struct SecondaryNavigationView: View {
             Section {
                 NavigationLink(
                     destination: PreferencesView(viewModel: .init(identityContext: viewModel.identityContext))
-                        .environmentObject(rootViewModel)
-                        .environmentObject(viewModel.identityContext)) {
+                        .environmentObject(rootViewModel)) {
                     Label("secondary-navigation.preferences", systemImage: "gear")
                 }
             }

Views/StartupAndSyncingPreferencesView.swift

@@ -4,7 +4,7 @@ import SwiftUI
 import ViewModels
 
 struct StartupAndSyncingPreferencesView: View {
-    @EnvironmentObject var identityContext: IdentityContext
+    @StateObject var identityContext: IdentityContext
 
     var body: some View {
         Form {
@@ -46,8 +46,7 @@ import PreviewViewModels
 
 struct StartupAndSyncingPreferencesView_Previews: PreviewProvider {
     static var previews: some View {
-        StartupAndSyncingPreferencesView()
-            .environmentObject(IdentityContext.preview)
+        StartupAndSyncingPreferencesView(identityContext: .preview)
     }
 }
 #endif

Views/TableView.swift

@@ -4,14 +4,12 @@ import SwiftUI
 import ViewModels
 
 struct TableView: UIViewControllerRepresentable {
-    @EnvironmentObject var identityContext: IdentityContext
     @EnvironmentObject var rootViewModel: RootViewModel
     let viewModelClosure: () -> CollectionViewModel
 
     func makeUIViewController(context: Context) -> TableViewController {
         TableViewController(viewModel: viewModelClosure(),
-                            rootViewModel: rootViewModel,
-                            identityContext: identityContext)
+                            rootViewModel: rootViewModel)
     }
 
     func updateUIViewController(_ uiViewController: TableViewController, context: Context) {