Fixes #734 - Add a "View logs" option to the report a problem screen

Move bug report and log viewer responsibility to a separate flow coordinator. Reuse it as a child coordinator in the authentication, userSessionFlow and settings flow coordinators.

ElementX/Resources/Localizations/en.lproj/Localizable.strings

@@ -342,6 +342,7 @@
 "screen_bug_report_include_logs" = "Allow logs";
 "screen_bug_report_include_screenshot" = "Send screenshot";
 "screen_bug_report_logs_description" = "Logs will be included with your message to make sure that everything is working properly. To send your message without logs, turn off this setting.";
+"screen_bug_report_view_logs" = "View logs";
 "screen_change_account_provider_matrix_org_subtitle" = "Matrix.org is a large, free server on the public Matrix network for secure, decentralised communication, run by the Matrix.org Foundation.";
 "screen_change_account_provider_other" = "Other";
 "screen_change_account_provider_subtitle" = "Use a different account provider, such as your own private server or a work account.";

ElementX/Sources/Application/FlowCoordinatorProtocol.swift

@@ -19,6 +19,7 @@ import Foundation
 // periphery:ignore - markdown protocol
 @MainActor
 protocol FlowCoordinatorProtocol {
+    func start()
     func handleAppRoute(_ appRoute: AppRoute, animated: Bool)
     func clearRoute(animated: Bool)
 }

ElementX/Sources/FlowCoordinators/BugReportFlowCoordinator.swift

@@ -0,0 +1,127 @@
+//
+// Copyright 2024 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+
+struct BugReportFlowCoordinatorParameters {
+    enum PresentationMode {
+        case sheet(NavigationStackCoordinator)
+        case push(NavigationStackCoordinator)
+    }
+    
+    let presentationMode: PresentationMode
+    let userIndicatorController: UserIndicatorControllerProtocol
+    let bugReportService: BugReportServiceProtocol
+    let userID: String?
+    let deviceID: String?
+}
+
+class BugReportFlowCoordinator: FlowCoordinatorProtocol {
+    private let parameters: BugReportFlowCoordinatorParameters
+    private var cancellables = Set<AnyCancellable>()
+    
+    private var internalNavigationStackCoordinator: NavigationStackCoordinator?
+    
+    private var isModallyPresented: Bool {
+        switch parameters.presentationMode {
+        case .sheet:
+            return true
+        case .push:
+            return false
+        }
+    }
+    
+    init(parameters: BugReportFlowCoordinatorParameters) {
+        self.parameters = parameters
+    }
+    
+    func start() {
+        presentBugReportScreen()
+    }
+    
+    func handleAppRoute(_ appRoute: AppRoute, animated: Bool) {
+        fatalError()
+    }
+    
+    func clearRoute(animated: Bool) {
+        fatalError()
+    }
+    
+    // MARK: - Private
+    
+    private func presentBugReportScreen() {
+        let params = BugReportScreenCoordinatorParameters(bugReportService: parameters.bugReportService,
+                                                          userID: parameters.userID,
+                                                          deviceID: parameters.deviceID,
+                                                          userIndicatorController: parameters.userIndicatorController,
+                                                          screenshot: nil,
+                                                          isModallyPresented: isModallyPresented)
+        let coordinator = BugReportScreenCoordinator(parameters: params)
+        coordinator.actions.sink { [weak self] action in
+            guard let self else { return }
+            
+            switch action {
+            case .cancel:
+                dismiss()
+            case .viewLogs:
+                presentLogViewerScreen()
+            case .finish:
+                showSuccess(label: L10n.actionDone)
+                dismiss()
+            }
+        }
+        .store(in: &cancellables)
+        
+        switch parameters.presentationMode {
+        case .sheet(let navigationStackCoordinator):
+            let internalNavigationStackCoordinator = NavigationStackCoordinator()
+            internalNavigationStackCoordinator.setRootCoordinator(coordinator)
+            navigationStackCoordinator.setSheetCoordinator(internalNavigationStackCoordinator)
+            self.internalNavigationStackCoordinator = internalNavigationStackCoordinator
+        case .push(let navigationStackCoordinator):
+            internalNavigationStackCoordinator = navigationStackCoordinator
+            navigationStackCoordinator.push(coordinator)
+        }
+    }
+    
+    private func presentLogViewerScreen() {
+        let coordinator = LogViewerScreenCoordinator(parameters: .init())
+        coordinator.actions.sink { [weak self] action in
+            guard let self else { return }
+            
+            switch action {
+            case .done:
+                internalNavigationStackCoordinator?.pop()
+            }
+        }
+        .store(in: &cancellables)
+        
+        internalNavigationStackCoordinator?.push(coordinator)
+    }
+    
+    private func dismiss() {
+        switch parameters.presentationMode {
+        case .push(let navigationStackCoordinator):
+            navigationStackCoordinator.pop()
+        case .sheet(let navigationStackCoordinator):
+            navigationStackCoordinator.setSheetCoordinator(nil)
+        }
+    }
+    
+    private func showSuccess(label: String) {
+        parameters.userIndicatorController.submitIndicator(UserIndicator(title: label))
+    }
+}

ElementX/Sources/FlowCoordinators/RoomFlowCoordinator.swift

@@ -91,6 +91,10 @@ class RoomFlowCoordinator: FlowCoordinatorProtocol {
         
     // MARK: - FlowCoordinatorProtocol
     
+    func start() {
+        fatalError("This flow coordinator expect a route")
+    }
+    
     func handleAppRoute(_ appRoute: AppRoute, animated: Bool) {
         switch appRoute {
         case .room(let roomID):

ElementX/Sources/FlowCoordinators/SettingsFlowCoordinator.swift

@@ -48,6 +48,9 @@ class SettingsFlowCoordinator: FlowCoordinatorProtocol {
     // periphery:ignore - retaining purpose
     private var appLockSetupFlowCoordinator: AppLockSetupFlowCoordinator?
     
+    // periphery:ignore - retaining purpose
+    private var bugReportFlowCoordinator: BugReportFlowCoordinator?
+    
     private let actionsSubject: PassthroughSubject<SettingsFlowCoordinatorAction, Never> = .init()
     var actions: AnyPublisher<SettingsFlowCoordinatorAction, Never> {
         actionsSubject.eraseToAnyPublisher()
@@ -57,6 +60,10 @@ class SettingsFlowCoordinator: FlowCoordinatorProtocol {
         self.parameters = parameters
     }
     
+    func start() {
+        fatalError("Unavailable")
+    }
+    
     func handleAppRoute(_ appRoute: AppRoute, animated: Bool) {
         switch appRoute {
         case .settings:
@@ -76,17 +83,17 @@ class SettingsFlowCoordinator: FlowCoordinatorProtocol {
         }
     }
     
-    func clearRoute(animated: Bool) { }
+    func clearRoute(animated: Bool) {
+        fatalError("Unavailable")
+    }
     
     // MARK: - Private
     
     private func presentSettingsScreen(animated: Bool) {
         navigationStackCoordinator = NavigationStackCoordinator()
         
-        let parameters = SettingsScreenCoordinatorParameters(userSession: parameters.userSession,
-                                                             appSettings: parameters.appSettings)
-        
-        let settingsScreenCoordinator = SettingsScreenCoordinator(parameters: parameters)
+        let settingsScreenCoordinator = SettingsScreenCoordinator(parameters: .init(userSession: parameters.userSession,
+                                                                                    appSettings: parameters.appSettings))
         
         settingsScreenCoordinator.actions
             .sink { [weak self] action in
@@ -94,9 +101,9 @@ class SettingsFlowCoordinator: FlowCoordinatorProtocol {
                 
                 switch action {
                 case .dismiss:
-                    self.parameters.navigationSplitCoordinator.setSheetCoordinator(nil)
+                    parameters.navigationSplitCoordinator.setSheetCoordinator(nil)
                 case .logout:
-                    self.parameters.navigationSplitCoordinator.setSheetCoordinator(nil)
+                    parameters.navigationSplitCoordinator.setSheetCoordinator(nil)
                     
                     // The settings sheet needs to be dismissed before the alert can be shown
                     DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) {
@@ -113,7 +120,12 @@ class SettingsFlowCoordinator: FlowCoordinatorProtocol {
                 case .appLock:
                     presentAppLockSetupFlow()
                 case .bugReport:
-                    presentBugReportScreen()
+                    bugReportFlowCoordinator = BugReportFlowCoordinator(parameters: .init(presentationMode: .push(navigationStackCoordinator),
+                                                                                          userIndicatorController: parameters.userIndicatorController,
+                                                                                          bugReportService: parameters.bugReportService,
+                                                                                          userID: parameters.userSession.userID,
+                                                                                          deviceID: parameters.userSession.deviceID))
+                    bugReportFlowCoordinator?.start()
                 case .about:
                     presentLegalInformationScreen()
                 case .sessionVerification:
@@ -132,7 +144,7 @@ class SettingsFlowCoordinator: FlowCoordinatorProtocol {
         
         navigationStackCoordinator.setRootCoordinator(settingsScreenCoordinator, animated: animated)
         
-        self.parameters.navigationSplitCoordinator.setSheetCoordinator(navigationStackCoordinator) { [weak self] in
+        parameters.navigationSplitCoordinator.setSheetCoordinator(navigationStackCoordinator) { [weak self] in
             guard let self else { return }
             
             navigationStackCoordinator = nil
@@ -187,28 +199,6 @@ class SettingsFlowCoordinator: FlowCoordinatorProtocol {
         coordinator.start()
     }
     
-    private func presentBugReportScreen() {
-        let params = BugReportScreenCoordinatorParameters(bugReportService: parameters.bugReportService,
-                                                          userID: parameters.userSession.userID,
-                                                          deviceID: parameters.userSession.deviceID,
-                                                          userIndicatorController: parameters.userIndicatorController,
-                                                          screenshot: nil,
-                                                          isModallyPresented: false)
-        let coordinator = BugReportScreenCoordinator(parameters: params)
-        coordinator.completion = { [weak self] result in
-            switch result {
-            case .finish:
-                self?.showSuccess(label: L10n.actionDone)
-            default:
-                break
-            }
-            
-            self?.navigationStackCoordinator.pop()
-        }
-        
-        navigationStackCoordinator.push(coordinator)
-    }
-    
     private func presentLegalInformationScreen() {
         navigationStackCoordinator.push(LegalInformationScreenCoordinator(appSettings: parameters.appSettings))
     }
@@ -269,10 +259,6 @@ class SettingsFlowCoordinator: FlowCoordinatorProtocol {
         navigationStackCoordinator.push(coordinator)
     }
 
-    private func showSuccess(label: String) {
-        parameters.userIndicatorController.submitIndicator(UserIndicator(title: label))
-    }
-    
     // MARK: OIDC Account Management
     
     private func presentAccountProfileURL() {

ElementX/Sources/FlowCoordinators/UserSessionFlowCoordinator.swift

@@ -33,9 +33,14 @@ class UserSessionFlowCoordinator: FlowCoordinatorProtocol {
     private let actionsSubject: PassthroughSubject<UserSessionFlowCoordinatorAction, Never> = .init()
     
     private let stateMachine: UserSessionFlowCoordinatorStateMachine
+    
     private let roomFlowCoordinator: RoomFlowCoordinator
+    
     private let settingsFlowCoordinator: SettingsFlowCoordinator
     
+    // periphery:ignore - retaining purpose
+    private var bugReportFlowCoordinator: BugReportFlowCoordinator?
+    
     private var cancellables = Set<AnyCancellable>()
     private var migrationCancellable: AnyCancellable?
     
@@ -250,7 +255,12 @@ class UserSessionFlowCoordinator: FlowCoordinatorProtocol {
                 break
                 
             case (.roomList, .feedbackScreen, .feedbackScreen):
-                presentFeedbackScreen(animated: animated)
+                bugReportFlowCoordinator = BugReportFlowCoordinator(parameters: .init(presentationMode: .sheet(sidebarNavigationStackCoordinator),
+                                                                                      userIndicatorController: ServiceLocator.shared.userIndicatorController,
+                                                                                      bugReportService: bugReportService,
+                                                                                      userID: userSession.userID,
+                                                                                      deviceID: userSession.deviceID))
+                bugReportFlowCoordinator?.start()
             case (.feedbackScreen, .dismissedFeedbackScreen, .roomList):
                 break
                 
@@ -483,30 +493,7 @@ class UserSessionFlowCoordinator: FlowCoordinatorProtocol {
             self?.stateMachine.processEvent(.dismissedStartChatScreen)
         }
     }
-    
-    // MARK: Bug reporting
-    
-    private func presentFeedbackScreen(animated: Bool, for image: UIImage? = nil) {
-        let feedbackNavigationStackCoordinator = NavigationStackCoordinator()
         
-        let parameters = BugReportScreenCoordinatorParameters(bugReportService: bugReportService,
-                                                              userID: userSession.userID,
-                                                              deviceID: userSession.deviceID,
-                                                              userIndicatorController: ServiceLocator.shared.userIndicatorController,
-                                                              screenshot: image,
-                                                              isModallyPresented: true)
-        let coordinator = BugReportScreenCoordinator(parameters: parameters)
-        coordinator.completion = { [weak self] _ in
-            self?.navigationSplitCoordinator.setSheetCoordinator(nil)
-        }
-        
-        feedbackNavigationStackCoordinator.setRootCoordinator(coordinator)
-        
-        navigationSplitCoordinator.setSheetCoordinator(feedbackNavigationStackCoordinator, animated: animated) { [weak self] in
-            self?.stateMachine.processEvent(.dismissedFeedbackScreen)
-        }
-    }
-    
     // MARK: Invites list
     
     private func presentInvitesList(animated: Bool) {

ElementX/Sources/Generated/Strings.swift

@@ -838,6 +838,8 @@ public enum L10n {
   public static func screenBugReportRashLogsAlertTitle(_ p1: Any) -> String {
     return L10n.tr("Localizable", "screen_bug_report_rash_logs_alert_title", String(describing: p1))
   }
+  /// View logs
+  public static var screenBugReportViewLogs: String { return L10n.tr("Localizable", "screen_bug_report_view_logs") }
   /// Matrix.org is a large, free server on the public Matrix network for secure, decentralised communication, run by the Matrix.org Foundation.
   public static var screenChangeAccountProviderMatrixOrgSubtitle: String { return L10n.tr("Localizable", "screen_change_account_provider_matrix_org_subtitle") }
   /// Other

ElementX/Sources/Screens/Authentication/AuthenticationCoordinator.swift

@@ -34,9 +34,13 @@ class AuthenticationCoordinator: CoordinatorProtocol {
     private var cancellables = Set<AnyCancellable>()
     
     private var oidcPresenter: OIDCAuthenticationPresenter?
+    
     // periphery: ignore - used to store the coordinator to avoid deallocation
     private var appLockFlowCoordinator: AppLockSetupFlowCoordinator?
     
+    // periphery:ignore - retaining purpose
+    private var bugReportFlowCoordinator: BugReportFlowCoordinator?
+    
     weak var delegate: AuthenticationCoordinatorDelegate?
     
     init(authenticationService: AuthenticationServiceProxyProtocol,
@@ -94,24 +98,12 @@ class AuthenticationCoordinator: CoordinatorProtocol {
     }
     
     private func showReportProblemScreen() {
-        let feedbackNavigationStackCoordinator = NavigationStackCoordinator()
-        
-        let parameters = BugReportScreenCoordinatorParameters(bugReportService: bugReportService,
-                                                              userID: nil,
-                                                              deviceID: nil,
-                                                              userIndicatorController: ServiceLocator.shared.userIndicatorController,
-                                                              screenshot: nil,
-                                                              isModallyPresented: true)
-        
-        let coordinator = BugReportScreenCoordinator(parameters: parameters)
-        
-        coordinator.completion = { [weak self] _ in
-            self?.navigationStackCoordinator.setSheetCoordinator(nil)
-        }
-        
-        feedbackNavigationStackCoordinator.setRootCoordinator(coordinator)
-        
-        navigationStackCoordinator.setSheetCoordinator(feedbackNavigationStackCoordinator, animated: true)
+        bugReportFlowCoordinator = BugReportFlowCoordinator(parameters: .init(presentationMode: .sheet(navigationStackCoordinator),
+                                                                              userIndicatorController: ServiceLocator.shared.userIndicatorController,
+                                                                              bugReportService: bugReportService,
+                                                                              userID: nil,
+                                                                              deviceID: nil))
+        bugReportFlowCoordinator?.start()
     }
     
     private func startAuthentication() async {

ElementX/Sources/Screens/BugReportScreen/BugReportScreenCoordinator.swift

@@ -17,8 +17,9 @@
 import Combine
 import SwiftUI
 
-enum BugReportScreenCoordinatorResult {
+enum BugReportScreenCoordinatorAction {
     case cancel
+    case viewLogs
     case finish
 }
 
@@ -37,7 +38,10 @@ final class BugReportScreenCoordinator: CoordinatorProtocol {
     private var viewModel: BugReportScreenViewModelProtocol
     private var cancellables = Set<AnyCancellable>()
     
-    var completion: ((BugReportScreenCoordinatorResult) -> Void)?
+    private let actionsSubject: PassthroughSubject<BugReportScreenCoordinatorAction, Never> = .init()
+    var actions: AnyPublisher<BugReportScreenCoordinatorAction, Never> {
+        actionsSubject.eraseToAnyPublisher()
+    }
     
     init(parameters: BugReportScreenCoordinatorParameters) {
         self.parameters = parameters
@@ -56,18 +60,21 @@ final class BugReportScreenCoordinator: CoordinatorProtocol {
             .actions
             .sink { [weak self] action in
                 guard let self else { return }
+                
                 MXLog.info("BugReportViewModel did complete with result: \(action).")
                 switch action {
                 case .cancel:
-                    self.completion?(.cancel)
+                    actionsSubject.send(.cancel)
+                case .viewLogs:
+                    actionsSubject.send(.viewLogs)
                 case let .submitStarted(progressPublisher):
-                    self.startLoading(label: L10n.commonSending, progressPublisher: progressPublisher)
+                    startLoading(label: L10n.commonSending, progressPublisher: progressPublisher)
                 case .submitFinished:
-                    self.stopLoading()
-                    self.completion?(.finish)
+                    stopLoading()
+                    actionsSubject.send(.finish)
                 case .submitFailed(let error):
-                    self.stopLoading()
-                    self.showError(label: error.localizedDescription)
+                    stopLoading()
+                    showError(label: error.localizedDescription)
                 }
             }
             .store(in: &cancellables)

ElementX/Sources/Screens/BugReportScreen/BugReportScreenModels.swift

@@ -19,6 +19,7 @@ import UIKit
 
 enum BugReportScreenViewModelAction {
     case cancel
+    case viewLogs
     case submitStarted(progressPublisher: CurrentValuePublisher<Double, Never>)
     case submitFinished
     case submitFailed(error: Error)
@@ -42,4 +43,5 @@ enum BugReportScreenViewAction {
     case submit
     case removeScreenshot
     case attachScreenshot(UIImage)
+    case viewLogs
 }

ElementX/Sources/Screens/BugReportScreen/BugReportScreenViewModel.swift

@@ -53,6 +53,8 @@ class BugReportScreenViewModel: BugReportScreenViewModelType, BugReportScreenVie
         case .cancel:
             uploadTask = nil
             actionsSubject.send(.cancel)
+        case .viewLogs:
+            actionsSubject.send(.viewLogs)
         case .submit:
             state.shouldDisableInteraction = true
             uploadTask = Task { await submitBugReport() }

ElementX/Sources/Screens/BugReportScreen/View/BugReportScreen.swift

@@ -68,6 +68,9 @@ struct BugReportScreen: View {
             ListRow(label: .plain(title: L10n.screenBugReportIncludeLogs),
                     kind: .toggle($context.sendingLogsEnabled))
                 .accessibilityIdentifier(A11yIdentifiers.bugReportScreen.sendLogs)
+            ListRow(label: .plain(title: L10n.screenBugReportViewLogs),
+                    kind: .navigationLink { context.send(viewAction: .viewLogs) })
+                .accessibilityIdentifier(A11yIdentifiers.bugReportScreen.sendLogs)
         } footer: {
             Text(L10n.screenBugReportLogsDescription)
                 .compoundListSectionFooter()

ElementX/Sources/Screens/LogViewerScreen/LogViewerScreenCoordinator.swift

@@ -0,0 +1,60 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+// periphery:ignore:all - this is just a logViewer remove this comment once generating the final file
+
+import Combine
+import SwiftUI
+
+struct LogViewerScreenCoordinatorParameters { }
+
+enum LogViewerScreenCoordinatorAction {
+    case done
+}
+
+final class LogViewerScreenCoordinator: CoordinatorProtocol {
+    private let parameters: LogViewerScreenCoordinatorParameters
+    private var viewModel: LogViewerScreenViewModelProtocol
+    private var cancellables = Set<AnyCancellable>()
+    
+    private let actionsSubject: PassthroughSubject<LogViewerScreenCoordinatorAction, Never> = .init()
+    var actions: AnyPublisher<LogViewerScreenCoordinatorAction, Never> {
+        actionsSubject.eraseToAnyPublisher()
+    }
+    
+    init(parameters: LogViewerScreenCoordinatorParameters) {
+        self.parameters = parameters
+        
+        viewModel = LogViewerScreenViewModel()
+    }
+    
+    func start() {
+        viewModel.actions.sink { [weak self] action in
+            MXLog.info("Coordinator: received view model action: \(action)")
+            
+            guard let self else { return }
+            switch action {
+            case .done:
+                self.actionsSubject.send(.done)
+            }
+        }
+        .store(in: &cancellables)
+    }
+        
+    func toPresentable() -> AnyView {
+        AnyView(LogViewerScreen(context: viewModel.context))
+    }
+}

ElementX/Sources/Screens/LogViewerScreen/LogViewerScreenModels.swift

@@ -0,0 +1,29 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+enum LogViewerScreenViewModelAction {
+    case done
+}
+
+struct LogViewerScreenViewState: BindableState {
+    let urls: [URL]
+}
+
+enum LogViewerScreenViewAction {
+    case done
+}

ElementX/Sources/Screens/LogViewerScreen/LogViewerScreenViewModel.swift

@@ -0,0 +1,43 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+import SwiftUI
+
+typealias LogViewerScreenViewModelType = StateStoreViewModel<LogViewerScreenViewState, LogViewerScreenViewAction>
+
+class LogViewerScreenViewModel: LogViewerScreenViewModelType, LogViewerScreenViewModelProtocol {
+    private var actionsSubject: PassthroughSubject<LogViewerScreenViewModelAction, Never> = .init()
+    
+    var actions: AnyPublisher<LogViewerScreenViewModelAction, Never> {
+        actionsSubject.eraseToAnyPublisher()
+    }
+
+    init() {
+        super.init(initialViewState: LogViewerScreenViewState(urls: MXLogger.logFiles))
+    }
+    
+    // MARK: - Public
+    
+    override func process(viewAction: LogViewerScreenViewAction) {
+        MXLog.info("View model: received view action: \(viewAction)")
+        
+        switch viewAction {
+        case .done:
+            actionsSubject.send(.done)
+        }
+    }
+}

ElementX/Sources/Screens/LogViewerScreen/LogViewerScreenViewModelProtocol.swift

@@ -0,0 +1,23 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Combine
+
+@MainActor
+protocol LogViewerScreenViewModelProtocol {
+    var actions: AnyPublisher<LogViewerScreenViewModelAction, Never> { get }
+    var context: LogViewerScreenViewModelType.Context { get }
+}

ElementX/Sources/Screens/LogViewerScreen/View/LogViewerScreen.swift

@@ -0,0 +1,85 @@
+//
+// Copyright 2022 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Compound
+import QuickLook
+import SwiftUI
+
+struct LogViewerScreen: View {
+    @ObservedObject var context: LogViewerScreenViewModel.Context
+    
+    var body: some View {
+        PreviewView(urls: context.viewState.urls)
+    }
+}
+
+private struct PreviewView: UIViewControllerRepresentable {
+    let urls: [URL]
+
+    func makeUIViewController(context: Context) -> UIViewController {
+        let previewController = QLPreviewController()
+        previewController.dataSource = context.coordinator
+        previewController.delegate = context.coordinator
+        
+        if ProcessInfo.processInfo.isiOSAppOnMac {
+            return previewController
+        } else {
+            return UINavigationController(rootViewController: previewController)
+        }
+    }
+
+    func updateUIViewController(_ uiViewController: UIViewController, context: Context) { }
+
+    func makeCoordinator() -> Coordinator {
+        Coordinator(view: self)
+    }
+    
+    class Coordinator: NSObject, QLPreviewControllerDataSource, QLPreviewControllerDelegate {
+        let view: PreviewView
+
+        init(view: PreviewView) {
+            self.view = view
+        }
+        
+        // MARK: - QLPreviewControllerDataSource
+        
+        func numberOfPreviewItems(in controller: QLPreviewController) -> Int {
+            view.urls.count
+        }
+
+        func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem {
+            let url = view.urls[index]
+            
+            return PreviewItem(previewItemURL: url, previewItemTitle: url.lastPathComponent)
+        }
+        
+        // MARK: - QLPreviewControllerDelegate
+        
+        func previewController(_ controller: QLPreviewController, editingModeFor previewItem: QLPreviewItem) -> QLPreviewItemEditingMode {
+            .disabled
+        }
+    }
+}
+
+private class PreviewItem: NSObject, QLPreviewItem {
+    var previewItemURL: URL?
+    var previewItemTitle: String?
+
+    init(previewItemURL: URL?, previewItemTitle: String?) {
+        self.previewItemURL = previewItemURL
+        self.previewItemTitle = previewItemTitle
+    }
+}

ElementX/Sources/UITests/UITestsAppCoordinator.swift

@@ -206,12 +206,12 @@ class MockScreen: Identifiable {
                 fatalError("Failed to start listening for notifications.")
             }
             
-            let coordinator = AppLockFlowCoordinator(initialState: .unlocked,
-                                                     appLockService: appLockService,
-                                                     navigationCoordinator: navigationCoordinator,
-                                                     notificationCenter: notificationCenter)
+            let flowCoordinator = AppLockFlowCoordinator(initialState: .unlocked,
+                                                         appLockService: appLockService,
+                                                         navigationCoordinator: navigationCoordinator,
+                                                         notificationCenter: notificationCenter)
             
-            coordinator.actions
+            flowCoordinator.actions
                 .sink { [weak self] action in
                     guard let self else { return }
                     
@@ -226,7 +226,9 @@ class MockScreen: Identifiable {
                 }
                 .store(in: &cancellables)
             
-            return coordinator
+            retainedState.append(flowCoordinator)
+            
+            return navigationCoordinator
         case .appLockSetupFlow, .appLockSetupFlowUnlock, .appLockSetupFlowMandatory:
             let navigationStackCoordinator = NavigationStackCoordinator()
             // The flow expects an existing root coordinator, use a blank form as a placeholder.
@@ -248,11 +250,12 @@ class MockScreen: Identifiable {
             }
             
             let flow: AppLockSetupFlowCoordinator.PresentationFlow = id == .appLockSetupFlowMandatory ? .onboarding : .settings
-            let coordinator = AppLockSetupFlowCoordinator(presentingFlow: flow,
-                                                          appLockService: appLockService,
-                                                          navigationStackCoordinator: navigationStackCoordinator)
-            coordinator.start()
-            retainedState.append(coordinator)
+            let flowCoordinator = AppLockSetupFlowCoordinator(presentingFlow: flow,
+                                                              appLockService: appLockService,
+                                                              navigationStackCoordinator: navigationStackCoordinator)
+            flowCoordinator.start()
+            
+            retainedState.append(flowCoordinator)
             
             return navigationStackCoordinator
         case .home:
@@ -559,19 +562,19 @@ class MockScreen: Identifiable {
             ServiceLocator.shared.settings.migratedAccounts[clientProxy.userID] = true
             ServiceLocator.shared.settings.hasShownWelcomeScreen = true
             
-            let coordinator = UserSessionFlowCoordinator(userSession: MockUserSession(clientProxy: clientProxy, mediaProvider: MockMediaProvider(), voiceMessageMediaManager: VoiceMessageMediaManagerMock()),
-                                                         navigationSplitCoordinator: navigationSplitCoordinator,
-                                                         windowManager: windowManager,
-                                                         appLockService: AppLockService(keychainController: KeychainControllerMock(),
-                                                                                        appSettings: ServiceLocator.shared.settings),
-                                                         bugReportService: BugReportServiceMock(),
-                                                         roomTimelineControllerFactory: MockRoomTimelineControllerFactory(),
-                                                         appSettings: appSettings,
-                                                         analytics: ServiceLocator.shared.analytics)
+            let flowCoordinator = UserSessionFlowCoordinator(userSession: MockUserSession(clientProxy: clientProxy, mediaProvider: MockMediaProvider(), voiceMessageMediaManager: VoiceMessageMediaManagerMock()),
+                                                             navigationSplitCoordinator: navigationSplitCoordinator,
+                                                             windowManager: windowManager,
+                                                             appLockService: AppLockService(keychainController: KeychainControllerMock(),
+                                                                                            appSettings: ServiceLocator.shared.settings),
+                                                             bugReportService: BugReportServiceMock(),
+                                                             roomTimelineControllerFactory: MockRoomTimelineControllerFactory(),
+                                                             appSettings: appSettings,
+                                                             analytics: ServiceLocator.shared.analytics)
             
-            coordinator.start()
+            flowCoordinator.start()
             
-            retainedState.append(coordinator)
+            retainedState.append(flowCoordinator)
             
             return navigationSplitCoordinator
         case .roomDetailsScreen: