QR Code Login Initial view state

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

@@ -476,6 +476,13 @@
 "screen_polls_history_filter_ongoing" = "Ongoing";
 "screen_polls_history_filter_past" = "Past";
 "screen_polls_history_title" = "Polls";
+"screen_qr_code_login_initial_state_item_1" = "Open Element on a desktop device";
+"screen_qr_code_login_initial_state_item_2" = "Click on your avatar";
+"screen_qr_code_login_initial_state_item_3" = "Select %1$@";
+"screen_qr_code_login_initial_state_item_3_action" = "“Link new device”";
+"screen_qr_code_login_initial_state_item_4" = "Select %1$@";
+"screen_qr_code_login_initial_state_item_4_action" = "“Show QR code”";
+"screen_qr_code_login_initial_state_title" = "Open Element on another device to get the QR code";
 "screen_recovery_key_change_description" = "Get a new recovery key if you've lost your existing one. After changing your recovery key, your old one will no longer work.";
 "screen_recovery_key_change_generate_key" = "Generate a new recovery key";
 "screen_recovery_key_change_generate_key_description" = "Make sure you can store your recovery key somewhere safe";
@@ -485,7 +492,7 @@
 "screen_recovery_key_confirm_description" = "Make sure nobody can see this screen!";
 "screen_recovery_key_confirm_error_content" = "Please try again to confirm access to your chat backup.";
 "screen_recovery_key_confirm_error_title" = "Incorrect recovery key";
-"screen_recovery_key_confirm_key_description" = "If you have a recovery passphrase or secret passphrase/key, this will work too.";
+"screen_recovery_key_confirm_key_description" = "If you have a security key or security phrase, this will work too.";
 "screen_recovery_key_confirm_key_label" = "Recovery key or passcode";
 "screen_recovery_key_confirm_key_placeholder" = "Enter…";
 "screen_recovery_key_confirm_success" = "Recovery key confirmed";

ElementX/Sources/FlowCoordinators/AuthenticationFlowCoordinator.swift

@@ -90,8 +90,7 @@ class AuthenticationFlowCoordinator: FlowCoordinatorProtocol {
                 case .loginManually:
                     Task { await self.startAuthentication() }
                 case .loginWithQR:
-                    // TODO: Implement QR code login navigation
-                    break
+                    startQrCodeLogin()
                 case .reportProblem:
                     showReportProblemScreen()
                 }
@@ -103,6 +102,21 @@ class AuthenticationFlowCoordinator: FlowCoordinatorProtocol {
         navigationRootCoordinator.setRootCoordinator(navigationStackCoordinator)
     }
 
+    private func startQrCodeLogin() {
+        let coordinator = QRCodeLoginScreenCoordinator(parameters: .init(qrCodeLoginController: QRCodeLoginController()))
+        coordinator.actionsPublisher.sink { [weak self] action in
+            guard let self else {
+                return
+            }
+            switch action {
+            case .cancel:
+                navigationStackCoordinator.setSheetCoordinator(nil)
+            }
+        }
+        .store(in: &cancellables)
+        navigationStackCoordinator.setSheetCoordinator(coordinator)
+    }
+
     private func showReportProblemScreen() {
         bugReportFlowCoordinator = BugReportFlowCoordinator(parameters: .init(presentationMode: .sheet(navigationStackCoordinator),
                                                                               userIndicatorController: userIndicatorController,

ElementX/Sources/Generated/Strings.swift

@@ -1167,6 +1167,24 @@ internal enum L10n {
   internal static var screenPollsHistoryFilterPast: String { return L10n.tr("Localizable", "screen_polls_history_filter_past") }
   /// Polls
   internal static var screenPollsHistoryTitle: String { return L10n.tr("Localizable", "screen_polls_history_title") }
+  /// Open Element on a desktop device
+  internal static var screenQrCodeLoginInitialStateItem1: String { return L10n.tr("Localizable", "screen_qr_code_login_initial_state_item_1") }
+  /// Click on your avatar
+  internal static var screenQrCodeLoginInitialStateItem2: String { return L10n.tr("Localizable", "screen_qr_code_login_initial_state_item_2") }
+  /// Select %1$@
+  internal static func screenQrCodeLoginInitialStateItem3(_ p1: Any) -> String {
+    return L10n.tr("Localizable", "screen_qr_code_login_initial_state_item_3", String(describing: p1))
+  }
+  /// “Link new device”
+  internal static var screenQrCodeLoginInitialStateItem3Action: String { return L10n.tr("Localizable", "screen_qr_code_login_initial_state_item_3_action") }
+  /// Select %1$@
+  internal static func screenQrCodeLoginInitialStateItem4(_ p1: Any) -> String {
+    return L10n.tr("Localizable", "screen_qr_code_login_initial_state_item_4", String(describing: p1))
+  }
+  /// “Show QR code”
+  internal static var screenQrCodeLoginInitialStateItem4Action: String { return L10n.tr("Localizable", "screen_qr_code_login_initial_state_item_4_action") }
+  /// Open Element on another device to get the QR code
+  internal static var screenQrCodeLoginInitialStateTitle: String { return L10n.tr("Localizable", "screen_qr_code_login_initial_state_title") }
   /// Get a new recovery key if you've lost your existing one. After changing your recovery key, your old one will no longer work.
   internal static var screenRecoveryKeyChangeDescription: String { return L10n.tr("Localizable", "screen_recovery_key_change_description") }
   /// Generate a new recovery key
@@ -1185,7 +1203,7 @@ internal enum L10n {
   internal static var screenRecoveryKeyConfirmErrorContent: String { return L10n.tr("Localizable", "screen_recovery_key_confirm_error_content") }
   /// Incorrect recovery key
   internal static var screenRecoveryKeyConfirmErrorTitle: String { return L10n.tr("Localizable", "screen_recovery_key_confirm_error_title") }
-  /// If you have a recovery passphrase or secret passphrase/key, this will work too.
+  /// If you have a security key or security phrase, this will work too.
   internal static var screenRecoveryKeyConfirmKeyDescription: String { return L10n.tr("Localizable", "screen_recovery_key_confirm_key_description") }
   /// Recovery key or passcode
   internal static var screenRecoveryKeyConfirmKeyLabel: String { return L10n.tr("Localizable", "screen_recovery_key_confirm_key_label") }

ElementX/Sources/Mocks/Generated/GeneratedMocks.swift

@@ -2338,6 +2338,26 @@ class PollInteractionHandlerMock: PollInteractionHandlerProtocol {
         }
     }
 }
+class QRCodeLoginControllerMock: QRCodeLoginControllerProtocol {
+
+    //MARK: - requestAuthorizationIfNeeded
+
+    var requestAuthorizationIfNeededCallsCount = 0
+    var requestAuthorizationIfNeededCalled: Bool {
+        return requestAuthorizationIfNeededCallsCount > 0
+    }
+    var requestAuthorizationIfNeededReturnValue: Bool!
+    var requestAuthorizationIfNeededClosure: (() async -> Bool)?
+
+    func requestAuthorizationIfNeeded() async -> Bool {
+        requestAuthorizationIfNeededCallsCount += 1
+        if let requestAuthorizationIfNeededClosure = requestAuthorizationIfNeededClosure {
+            return await requestAuthorizationIfNeededClosure()
+        } else {
+            return requestAuthorizationIfNeededReturnValue
+        }
+    }
+}
 class RoomDirectorySearchProxyMock: RoomDirectorySearchProxyProtocol {
     var resultsPublisher: CurrentValuePublisher<[RoomDirectorySearchResult], Never> {
         get { return underlyingResultsPublisher }

ElementX/Sources/Other/SwiftUI/Views/SFNumberedListView.swift

@@ -0,0 +1,81 @@
+//
+// 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 SFSafeSymbols
+import SwiftUI
+
+/// The view can only display a max 9 items as of right now
+struct SFNumberedListView: View {
+    let items: [AttributedString]
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 24) {
+            ForEach(0..<items.count, id: \.self) { index in
+                Label {
+                    Text(items[index])
+                } icon: {
+                    Image(systemSymbol: getSymbol(for: index))
+                        .imageScale(.large)
+                        .fontWeight(.light)
+                        .foregroundColor(.compound.textPlaceholder)
+                }
+                .foregroundColor(.compound.textPrimary)
+                .font(.compound.bodyMD)
+            }
+        }
+    }
+
+    private func getSymbol(for index: Int) -> SFSymbol {
+        switch index {
+        case 0:
+            return ._1Circle
+        case 1:
+            return ._2Circle
+        case 2:
+            return ._3Circle
+        case 3:
+            return ._4Circle
+        case 4:
+            return ._5Circle
+        case 5:
+            return ._6Circle
+        case 6:
+            return ._7Circle
+        case 7:
+            return ._8Circle
+        case 8:
+            return ._9Circle
+        default:
+            return ._0Circle
+        }
+    }
+}
+
+struct SFNumberedListView_Previews: PreviewProvider, TestablePreview {
+    static let items = {
+        var results: [AttributedString] = []
+        for index in 1...9 {
+            results.append(AttributedString("Item \(index)"))
+        }
+        return results
+    }()
+
+    static var previews: some View {
+        SFNumberedListView(items: items)
+            .padding()
+            .previewLayout(.sizeThatFits)
+    }
+}

ElementX/Sources/Screens/AuthenticationStartScreen/View/AuthenticationStartScreen.swift

@@ -96,7 +96,7 @@ struct AuthenticationStartScreen: View {
     var buttons: some View {
         VStack(spacing: 16) {
             if context.viewState.isQRCodeLoginEnabled {
-                Button { context.send(viewAction: .loginManually) } label: {
+                Button { context.send(viewAction: .loginWithQR) } label: {
                     Label(L10n.screenOnboardingSignInWithQrCode, icon: \.qrCode)
                 }
                 .buttonStyle(.compound(.primary))

ElementX/Sources/Screens/QRCodeLoginScreen/QRCodeLoginScreenCoordinator.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 qRCodeLogin remove this comment once generating the final file
+
+import Combine
+import SwiftUI
+
+struct QRCodeLoginScreenCoordinatorParameters {
+    let qrCodeLoginController: QRCodeLoginControllerProtocol
+}
+
+enum QRCodeLoginScreenCoordinatorAction {
+    case cancel
+}
+
+final class QRCodeLoginScreenCoordinator: CoordinatorProtocol {
+    private let viewModel: QRCodeLoginScreenViewModelProtocol
+
+    private var cancellables = Set<AnyCancellable>()
+
+    private let actionsSubject: PassthroughSubject<QRCodeLoginScreenCoordinatorAction, Never> = .init()
+    var actionsPublisher: AnyPublisher<QRCodeLoginScreenCoordinatorAction, Never> {
+        actionsSubject.eraseToAnyPublisher()
+    }
+
+    init(parameters: QRCodeLoginScreenCoordinatorParameters) {
+        viewModel = QRCodeLoginScreenViewModel(qrCodeLoginController: parameters.qrCodeLoginController)
+    }
+
+    func start() {
+        viewModel.actionsPublisher.sink { [weak self] action in
+            MXLog.info("Coordinator: received view model action: \(action)")
+
+            guard let self else { return }
+            switch action {
+            case .cancel:
+                self.actionsSubject.send(.cancel)
+            }
+        }
+        .store(in: &cancellables)
+    }
+
+    func toPresentable() -> AnyView {
+        AnyView(QRCodeLoginScreen(context: viewModel.context))
+    }
+}

ElementX/Sources/Screens/QRCodeLoginScreen/QRCodeLoginScreenModels.swift

@@ -0,0 +1,67 @@
+//
+// 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 QRCodeLoginScreenViewModelAction {
+    case cancel
+}
+
+struct QRCodeLoginScreenViewState: BindableState {
+    var state: QRCodeLoginState = .initial
+
+    private let listItem3AttributedText = {
+        let boldPlaceholder = "{bold}"
+        var finalString = AttributedString(L10n.screenQrCodeLoginInitialStateItem3(boldPlaceholder))
+        var boldString = AttributedString(L10n.screenQrCodeLoginInitialStateItem3Action)
+        boldString.bold()
+        finalString.replace(boldPlaceholder, with: boldString)
+        return finalString
+    }()
+
+    private let listItem4AttributedText = {
+        let boldPlaceholder = "{bold}"
+        var finalString = AttributedString(L10n.screenQrCodeLoginInitialStateItem4(boldPlaceholder))
+        var boldString = AttributedString(L10n.screenQrCodeLoginInitialStateItem4Action)
+        boldString.bold()
+        finalString.replace(boldPlaceholder, with: boldString)
+        return finalString
+    }()
+
+    var listItems: [AttributedString] {
+        [
+            AttributedString(L10n.screenQrCodeLoginInitialStateItem1),
+            AttributedString(L10n.screenQrCodeLoginInitialStateItem2),
+            listItem3AttributedText,
+            listItem4AttributedText
+        ]
+    }
+}
+
+enum QRCodeLoginScreenViewAction {
+    case cancel
+    case startScan
+}
+
+enum QRCodeLoginState {
+    case initial
+    case scanning
+    case error(QRCodeLoginErrorState)
+
+    enum QRCodeLoginErrorState {
+        case noCameraPermission
+    }
+}

ElementX/Sources/Screens/QRCodeLoginScreen/QRCodeLoginScreenViewModel.swift

@@ -0,0 +1,61 @@
+//
+// 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 AVFoundation
+import Combine
+import SwiftUI
+
+typealias QRCodeLoginScreenViewModelType = StateStoreViewModel<QRCodeLoginScreenViewState, QRCodeLoginScreenViewAction>
+
+class QRCodeLoginScreenViewModel: QRCodeLoginScreenViewModelType, QRCodeLoginScreenViewModelProtocol {
+    private let qrCodeLoginController: QRCodeLoginControllerProtocol
+
+    private let actionsSubject: PassthroughSubject<QRCodeLoginScreenViewModelAction, Never> = .init()
+    var actionsPublisher: AnyPublisher<QRCodeLoginScreenViewModelAction, Never> {
+        actionsSubject.eraseToAnyPublisher()
+    }
+
+    init(qrCodeLoginController: QRCodeLoginControllerProtocol) {
+        self.qrCodeLoginController = qrCodeLoginController
+        super.init(initialViewState: QRCodeLoginScreenViewState())
+    }
+
+    // MARK: - Public
+
+    override func process(viewAction: QRCodeLoginScreenViewAction) {
+        switch viewAction {
+        case .cancel:
+            actionsSubject.send(.cancel)
+        case .startScan:
+            Task { await startScanIfPossible() }
+        }
+    }
+
+    private func startScanIfPossible() async {
+        let status = AVCaptureDevice.authorizationStatus(for: .video)
+
+        // Determine if the user previously authorized camera access.
+        var isAuthorized = status == .authorized
+
+        // If the system hasn't determined the user's authorization status,
+        // explicitly prompt them for approval.
+        if status == .notDetermined {
+            isAuthorized = await AVCaptureDevice.requestAccess(for: .video)
+        }
+
+        state.state = isAuthorized ? .scanning : .error(.noCameraPermission)
+    }
+}