Invite the DM recipient to a new room (#5588)

* handle the details to invite users flow.

* implemented the room creation in the invite screen, and its dismissal + navigaton to the newly created room

* updated preview and unit tests

* pr suggestions

ElementX/Sources/FlowCoordinators/RoomFlowCoordinator.swift

@@ -60,6 +60,13 @@ struct FocusEvent: Hashable {
     let shouldSetPin: Bool
 }
 
+enum InviteUsersFlow: Hashable {
+    /// Invite people into the current room.
+    case existingRoom
+    /// Start a new room with the given invitee pre-selected and mandatory.
+    case newRoom(mandatoryInvitee: UserProfileProxy)
+}
+
 // swiftlint:disable:next type_body_length
 class RoomFlowCoordinator: FlowCoordinatorProtocol {
     private let roomID: String
@@ -537,8 +544,8 @@ class RoomFlowCoordinator: FlowCoordinatorProtocol {
                 
                 presentMediaUploadPreviewScreen(for: mediaURLs, timelineController: timelineController, animated: animated)
                 
-            case (_, .presentInviteUsersScreen, .inviteUsersScreen):
+            case (_, .presentInviteUsersScreen(let flow), .inviteUsersScreen):
-                presentInviteUsersScreen()
+                presentInviteUsersScreen(flow: flow)
                 
             case (_, .presentTransferOwnershipScreen, .transferOwnershipScreen):
                 presentTransferOwnershipScreen()
@@ -955,7 +962,9 @@ class RoomFlowCoordinator: FlowCoordinatorProtocol {
             case .presentNotificationSettingsScreen:
                 stateMachine.tryEvent(.presentNotificationSettingsScreen)
             case .presentInviteUsersScreen:
-                stateMachine.tryEvent(.presentInviteUsersScreen)
+                stateMachine.tryEvent(.presentInviteUsersScreen(flow: .existingRoom))
+            case .presentInviteToNewRoom(let mandatoryInvitee):
+                stateMachine.tryEvent(.presentInviteUsersScreen(flow: .newRoom(mandatoryInvitee: mandatoryInvitee)))
             case .presentPollsHistory:
                 stateMachine.tryEvent(.presentPollsHistory)
             case .presentRolesAndPermissionsScreen:
@@ -1326,10 +1335,16 @@ class RoomFlowCoordinator: FlowCoordinatorProtocol {
         }
     }
     
-    private func presentInviteUsersScreen() {
+    private func presentInviteUsersScreen(flow: InviteUsersFlow = .existingRoom) {
         let stackCoordinator = NavigationStackCoordinator()
+
+        let roomType: InviteUsersScreenRoomType = switch flow {
+        case .existingRoom: .existingRoom(roomProxy: roomProxy)
+        case .newRoom(let mandatoryInvitee): .draft(mandatoryInvitees: [mandatoryInvitee])
+        }
+
         let inviteParameters = InviteUsersScreenCoordinatorParameters(userSession: userSession,
-                                                                      roomProxy: roomProxy,
+                                                                      roomType: roomType,
                                                                       isSkippable: false,
                                                                       userDiscoveryService: UserDiscoveryService(clientProxy: userSession.clientProxy),
                                                                       userIndicatorController: flowParameters.userIndicatorController,
@@ -1344,6 +1359,10 @@ class RoomFlowCoordinator: FlowCoordinatorProtocol {
             switch action {
             case .dismiss:
                 navigationStackCoordinator.setSheetCoordinator(nil)
+            case .openRoom(let roomID):
+                guard case .newRoom = flow else { return }
+                navigationStackCoordinator.setSheetCoordinator(nil)
+                stateMachine.tryEvent(.startChildFlow(roomID: roomID, via: [], entryPoint: .room))
             }
         }
         .store(in: &cancellables)

ElementX/Sources/FlowCoordinators/RoomFlowCoordinatorStateMachine.swift

@@ -65,7 +65,7 @@ extension RoomFlowCoordinator {
         case roomDetailsEditScreen
         case notificationSettings
         case globalNotificationSettings
-        case inviteUsersScreen(previousState: State)
+        case inviteUsersScreen(flow: InviteUsersFlow, previousState: State)
         case mediaUploadPicker(mode: MediaPickerScreenMode, previousState: State)
         case mediaUploadPreview(mediaURLs: [URL], previousState: State)
         case emojiPicker(itemID: TimelineItemIdentifier, selectedEmojis: Set<String>, previousState: State)
@@ -136,7 +136,7 @@ extension RoomFlowCoordinator {
         case presentGlobalNotificationSettingsScreen
         case dismissGlobalNotificationSettingsScreen
         
-        case presentInviteUsersScreen
+        case presentInviteUsersScreen(flow: InviteUsersFlow)
         case dismissInviteUsersScreen
                 
         case presentMediaUploadPicker(mode: MediaPickerScreenMode)
@@ -404,9 +404,9 @@ extension RoomFlowCoordinator {
             case (.mediaUploadPicker(_, let previousMediaUploadPickerState), .presentMediaUploadPreview(let mediaURLs)):
                 return .mediaUploadPreview(mediaURLs: mediaURLs, previousState: previousMediaUploadPickerState)
                 
-            case (_, .presentInviteUsersScreen):
+            case (_, .presentInviteUsersScreen(let flow)):
-                return .inviteUsersScreen(previousState: fromState)
+                return .inviteUsersScreen(flow: flow, previousState: fromState)
-            case (.inviteUsersScreen(let previousState), .dismissInviteUsersScreen):
+            case (.inviteUsersScreen(_, let previousState), .dismissInviteUsersScreen):
                 return previousState
                 
             case (_, .presentTransferOwnershipScreen):

ElementX/Sources/FlowCoordinators/RoomMembersFlowCoordinator.swift

@@ -261,7 +261,7 @@ final class RoomMembersFlowCoordinator: FlowCoordinatorProtocol {
     private func presentInviteUsersScreen() {
         let stackCoordinator = NavigationStackCoordinator()
         let inviteParameters = InviteUsersScreenCoordinatorParameters(userSession: flowParameters.userSession,
-                                                                      roomProxy: roomProxy,
+                                                                      roomType: .existingRoom(roomProxy: roomProxy),
                                                                       isSkippable: false,
                                                                       userDiscoveryService: UserDiscoveryService(clientProxy: flowParameters.userSession.clientProxy),
                                                                       userIndicatorController: flowParameters.userIndicatorController,
@@ -276,6 +276,8 @@ final class RoomMembersFlowCoordinator: FlowCoordinatorProtocol {
             switch action {
             case .dismiss:
                 navigationStackCoordinator.setSheetCoordinator(nil)
+            case .openRoom:
+                break
             }
         }
         .store(in: &cancellables)

ElementX/Sources/FlowCoordinators/SpaceSettingsFlowCoordinator.swift

@@ -240,7 +240,7 @@ final class SpaceSettingsFlowCoordinator: FlowCoordinatorProtocol {
             case .transferOwnership:
                 stateMachine.tryEvent(.presentTransferOwnership)
             case .presentRecipientDetails, .presentNotificationSettingsScreen, .presentReportRoomScreen,
-                 .presentInviteUsersScreen, .presentPollsHistory, .presentCall,
+                 .presentInviteUsersScreen, .presentInviteToNewRoom, .presentPollsHistory, .presentCall,
                  .presentPinnedEventsTimeline, .presentMediaEventsTimeline, .presentKnockingRequestsListScreen:
                 fatalError("Not handled in the space context")
             }

ElementX/Sources/FlowCoordinators/StartChatFlowCoordinator.swift

@@ -270,7 +270,7 @@ class StartChatFlowCoordinator: FlowCoordinatorProtocol {
     
     private func presentInviteUsersScreen(roomProxy: JoinedRoomProxyProtocol, spaceRoomListProxy: SpaceRoomListProxyProtocol?) {
         let inviteParameters = InviteUsersScreenCoordinatorParameters(userSession: flowParameters.userSession,
-                                                                      roomProxy: roomProxy,
+                                                                      roomType: .existingRoom(roomProxy: roomProxy),
                                                                       isSkippable: true,
                                                                       userDiscoveryService: userDiscoveryService,
                                                                       userIndicatorController: flowParameters.userIndicatorController,
@@ -285,6 +285,8 @@ class StartChatFlowCoordinator: FlowCoordinatorProtocol {
                 } else {
                     actionsSubject.send(.finished(.room(id: roomProxy.id)))
                 }
+            case .openRoom:
+                break
             }
         }
         .store(in: &cancellables)

ElementX/Sources/Mocks/Generated/GeneratedMocks.swift

@@ -3367,8 +3367,8 @@ class ClientProxyMock: ClientProxyProtocol, @unchecked Sendable {
     var createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartCalled: Bool {
         return createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartCallsCount > 0
     }
-    var createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartReceivedArguments: (name: String, topic: String?, accessType: CreateRoomAccessType, isSpace: Bool, userIDs: [String], avatarURL: URL?, aliasLocalPart: String?)?
+    var createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartReceivedArguments: (name: String?, topic: String?, accessType: CreateRoomAccessType, isSpace: Bool, userIDs: [String], avatarURL: URL?, aliasLocalPart: String?)?
-    var createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartReceivedInvocations: [(name: String, topic: String?, accessType: CreateRoomAccessType, isSpace: Bool, userIDs: [String], avatarURL: URL?, aliasLocalPart: String?)] = []
+    var createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartReceivedInvocations: [(name: String?, topic: String?, accessType: CreateRoomAccessType, isSpace: Bool, userIDs: [String], avatarURL: URL?, aliasLocalPart: String?)] = []
 
     var createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartUnderlyingReturnValue: Result<String, ClientProxyError>!
     var createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartReturnValue: Result<String, ClientProxyError>! {
@@ -3394,9 +3394,9 @@ class ClientProxyMock: ClientProxyProtocol, @unchecked Sendable {
             }
         }
     }
-    var createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartClosure: ((String, String?, CreateRoomAccessType, Bool, [String], URL?, String?) async -> Result<String, ClientProxyError>)?
+    var createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartClosure: ((String?, String?, CreateRoomAccessType, Bool, [String], URL?, String?) async -> Result<String, ClientProxyError>)?
 
-    func createRoom(name: String, topic: String?, accessType: CreateRoomAccessType, isSpace: Bool, userIDs: [String], avatarURL: URL?, aliasLocalPart: String?) async -> Result<String, ClientProxyError> {
+    func createRoom(name: String?, topic: String?, accessType: CreateRoomAccessType, isSpace: Bool, userIDs: [String], avatarURL: URL?, aliasLocalPart: String?) async -> Result<String, ClientProxyError> {
         createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartCallsCount += 1
         createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartReceivedArguments = (name: name, topic: topic, accessType: accessType, isSpace: isSpace, userIDs: userIDs, avatarURL: avatarURL, aliasLocalPart: aliasLocalPart)
         DispatchQueue.main.async {

ElementX/Sources/Screens/InviteUsersScreen/InviteUsersScreenCoordinator.swift

@@ -11,7 +11,7 @@ import SwiftUI
 
 struct InviteUsersScreenCoordinatorParameters {
     let userSession: UserSessionProtocol
-    let roomProxy: JoinedRoomProxyProtocol
+    let roomType: InviteUsersScreenRoomType
     let isSkippable: Bool
     let userDiscoveryService: UserDiscoveryServiceProtocol
     let userIndicatorController: UserIndicatorControllerProtocol
@@ -20,6 +20,7 @@ struct InviteUsersScreenCoordinatorParameters {
 
 enum InviteUsersScreenCoordinatorAction {
     case dismiss
+    case openRoom(roomID: String)
 }
 
 final class InviteUsersScreenCoordinator: CoordinatorProtocol {
@@ -33,7 +34,7 @@ final class InviteUsersScreenCoordinator: CoordinatorProtocol {
     
     init(parameters: InviteUsersScreenCoordinatorParameters) {
         viewModel = InviteUsersScreenViewModel(userSession: parameters.userSession,
-                                               roomProxy: parameters.roomProxy,
+                                               roomType: parameters.roomType,
                                                isSkippable: parameters.isSkippable,
                                                userDiscoveryService: parameters.userDiscoveryService,
                                                userIndicatorController: parameters.userIndicatorController,
@@ -46,6 +47,8 @@ final class InviteUsersScreenCoordinator: CoordinatorProtocol {
             switch action {
             case .dismiss:
                 actionsSubject.send(.dismiss)
+            case .openRoom(let roomID):
+                actionsSubject.send(.openRoom(roomID: roomID))
             }
         }
         .store(in: &cancellables)

ElementX/Sources/Screens/InviteUsersScreen/InviteUsersScreenModels.swift

@@ -16,11 +16,12 @@ enum InviteUsersScreenErrorType: Error {
 
 enum InviteUsersScreenViewModelAction {
     case dismiss
+    case openRoom(roomID: String)
 }
 
 enum InviteUsersScreenRoomType {
-    case draft
+    case draft(mandatoryInvitees: [UserProfileProxy])
-    case room(roomProxy: JoinedRoomProxyProtocol)
+    case existingRoom(roomProxy: JoinedRoomProxyProtocol)
 }
 
 struct InviteUsersScreenViewState: BindableState {
@@ -29,6 +30,7 @@ struct InviteUsersScreenViewState: BindableState {
     var usersSection: UserDiscoverySection = .init(type: .suggestions, users: [])
     
     var selectedUsers: [UserProfileProxy] = []
+    var mandatoryInvitees: [UserProfileProxy] = []
     var membershipState: [String: MembershipState] = .init()
     var usersToConfirm: [UserProfileProxy] = []
     
@@ -38,32 +40,29 @@ struct InviteUsersScreenViewState: BindableState {
         !isSearching && usersSection.type == .searchResult && usersSection.users.isEmpty
     }
     
+    var hasInvitableSelectedUsers: Bool {
+        selectedUsers.contains { !isInviteeMandatory($0) }
+    }
+    
     func isUserSelected(_ user: UserProfileProxy) -> Bool {
         isUserDisabled(user) || selectedUsers.contains { $0.userID == user.userID }
     }
     
     func isUserDisabled(_ user: UserProfileProxy) -> Bool {
+        if isInviteeMandatory(user) { return true }
         let membershipState = membershipState(user)
         return membershipState == .invite || membershipState == .join
     }
     
+    func isInviteeMandatory(_ user: UserProfileProxy) -> Bool {
+        mandatoryInvitees.contains { $0.userID == user.userID }
+    }
+    
     func membershipState(_ user: UserProfileProxy) -> MembershipState? {
         membershipState[user.userID]
     }
     
     let isSkippable: Bool
-    
-    var actionText: String {
-        if isSkippable, selectedUsers.isEmpty {
-            L10n.actionSkip
-        } else {
-            L10n.actionInvite
-        }
-    }
-    
-    var isActionDisabled: Bool {
-        isSkippable ? false : selectedUsers.isEmpty
-    }
 }
 
 struct InviteUsersScreenViewStateBindings {

ElementX/Sources/Screens/InviteUsersScreen/InviteUsersScreenViewModel.swift

@@ -14,7 +14,7 @@ typealias InviteUsersScreenViewModelType = StateStoreViewModel<InviteUsersScreen
 
 class InviteUsersScreenViewModel: InviteUsersScreenViewModelType, InviteUsersScreenViewModelProtocol {
     private let clientProxy: ClientProxyProtocol
-    private let roomProxy: JoinedRoomProxyProtocol
+    private let roomType: InviteUsersScreenRoomType
     private let userDiscoveryService: UserDiscoveryServiceProtocol
     private let userIndicatorController: UserIndicatorControllerProtocol
     private let appSettings: AppSettings
@@ -27,18 +27,21 @@ class InviteUsersScreenViewModel: InviteUsersScreenViewModelType, InviteUsersScr
     }
     
     init(userSession: UserSessionProtocol,
-         roomProxy: JoinedRoomProxyProtocol,
+         roomType: InviteUsersScreenRoomType,
          isSkippable: Bool,
          userDiscoveryService: UserDiscoveryServiceProtocol,
          userIndicatorController: UserIndicatorControllerProtocol,
          appSettings: AppSettings) {
         clientProxy = userSession.clientProxy
-        self.roomProxy = roomProxy
+        self.roomType = roomType
         self.userDiscoveryService = userDiscoveryService
         self.userIndicatorController = userIndicatorController
         self.appSettings = appSettings
 
-        super.init(initialViewState: InviteUsersScreenViewState(selectedUsers: [],
+        let mandatoryInvitees: [UserProfileProxy] = if case .draft(let invitees) = roomType { invitees } else { [] }
+
+        super.init(initialViewState: InviteUsersScreenViewState(selectedUsers: mandatoryInvitees,
+                                                                mandatoryInvitees: mandatoryInvitees,
                                                                 isSkippable: isSkippable),
                    mediaProvider: userSession.mediaProvider)
         
@@ -61,6 +64,10 @@ class InviteUsersScreenViewModel: InviteUsersScreenViewModelType, InviteUsersScr
         case .cancel:
             actionsSubject.send(.dismiss)
         case .proceed:
+            switch roomType {
+            case .draft:
+                createDraftRoom(mandatoryUserIDs: state.selectedUsers.map(\.userID))
+            case .existingRoom(let roomProxy):
                 guard roomProxy.details.historySharingState != RoomHistorySharingState.hidden,
                       !state.usersToConfirm.isEmpty,
                       !state.isSkippable else {
@@ -68,6 +75,7 @@ class InviteUsersScreenViewModel: InviteUsersScreenViewModelType, InviteUsersScr
                     return
                 }
                 state.bindings.presentConfirmationDialog = true
+            }
         case .removeUnknownUsers:
             state.bindings.presentConfirmationDialog = false
             state.selectedUsers.removeAll { user in
@@ -77,7 +85,9 @@ class InviteUsersScreenViewModel: InviteUsersScreenViewModelType, InviteUsersScr
         case .confirmUnknownUsers:
             state.bindings.presentConfirmationDialog = false
             state.usersToConfirm = []
+            if case .existingRoom(let roomProxy) = roomType {
                 inviteUsers(state.selectedUsers.map(\.userID), roomProxy: roomProxy)
+            }
         case .toggleUser(let user):
             toggleUser(user)
         }
@@ -86,6 +96,8 @@ class InviteUsersScreenViewModel: InviteUsersScreenViewModelType, InviteUsersScr
     // MARK: - Private
     
     private func toggleUser(_ user: UserProfileProxy) {
+        guard !state.isInviteeMandatory(user) else { return }
+
         if state.selectedUsers.contains(user) {
             state.selectedUsers.removeAll { $0.userID == user.userID }
         } else {
@@ -105,6 +117,29 @@ class InviteUsersScreenViewModel: InviteUsersScreenViewModelType, InviteUsersScr
         }
     }
     
+    private func createDraftRoom(mandatoryUserIDs: [String]) {
+        showLoadingIndicator(title: L10n.commonCreatingRoom)
+
+        Task {
+            defer { hideLoadingIndicator() }
+
+            switch await clientProxy.createRoom(name: nil,
+                                                topic: nil,
+                                                accessType: .private,
+                                                isSpace: false,
+                                                userIDs: mandatoryUserIDs,
+                                                avatarURL: nil,
+                                                aliasLocalPart: nil) {
+            case .success(let roomID):
+                actionsSubject.send(.openRoom(roomID: roomID))
+            case .failure:
+                state.bindings.alertInfo = .init(id: .unknown,
+                                                 title: L10n.commonError,
+                                                 message: L10n.screenStartChatErrorStartingChat)
+            }
+        }
+    }
+    
     private func inviteUsers(_ users: [String], roomProxy: JoinedRoomProxyProtocol) {
         showLoadingIndicator(title: L10n.screenRoomDetailsInvitePeoplePreparing, message: L10n.screenRoomDetailsInvitePeopleDontClose)
         
@@ -168,6 +203,8 @@ class InviteUsersScreenViewModel: InviteUsersScreenViewModelType, InviteUsersScr
     }
     
     private func fetchMembersIfNeeded() {
+        guard case .existingRoom(let roomProxy) = roomType else { return }
+        
         Task {
             showLoadingIndicator()
             await roomProxy.updateMembers()

ElementX/Sources/Screens/InviteUsersScreen/View/InviteUsersConfirmationSheetView.swift

@@ -61,7 +61,7 @@ struct InviteUsersConfirmationSheetView_Previews: PreviewProvider, TestablePrevi
     
     static func makeViewModel() -> InviteUsersScreenViewModel {
         let viewModel = InviteUsersScreenViewModel(userSession: UserSessionMock(.init(clientProxy: ClientProxyMock(.init()))),
-                                                   roomProxy: JoinedRoomProxyMock(.init(members: [])),
+                                                   roomType: .existingRoom(roomProxy: JoinedRoomProxyMock(.init(members: []))),
                                                    isSkippable: true,
                                                    userDiscoveryService: UserDiscoveryServiceMock(),
                                                    userIndicatorController: UserIndicatorControllerMock(),

ElementX/Sources/Screens/InviteUsersScreen/View/InviteUsersScreen.swift

@@ -110,7 +110,9 @@ struct InviteUsersScreen: View {
         ScrollView(.horizontal, showsIndicators: false) {
             HStack(spacing: 8) {
                 ForEach(context.viewState.selectedUsers, id: \.userID) { user in
-                    InviteUsersScreenSelectedItem(user: user, mediaProvider: context.mediaProvider) {
+                    InviteUsersScreenSelectedItem(user: user,
+                                                  mediaProvider: context.mediaProvider,
+                                                  isLocked: context.viewState.isInviteeMandatory(user)) {
                         deselect(user)
                     }
                     .frame(width: selectedUserCellWidth)
@@ -133,11 +135,18 @@ struct InviteUsersScreen: View {
         }
         
         ToolbarItem(placement: .confirmationAction) {
-            Button(context.viewState.actionText) {
+            if context.viewState.isSkippable, context.viewState.selectedUsers.isEmpty {
+                Button(L10n.actionSkip) {
                     context.send(viewAction: .proceed)
                 }
                 .accessibilityIdentifier(A11yIdentifiers.inviteUsersScreen.proceed)
-            .disabled(context.viewState.isActionDisabled)
+            } else {
+                ToolbarButton(role: .confirm(title: L10n.actionInvite)) {
+                    context.send(viewAction: .proceed)
+                }
+                .accessibilityIdentifier(A11yIdentifiers.inviteUsersScreen.proceed)
+                .disabled(!context.viewState.hasInvitableSelectedUsers)
+            }
         }
     }
     
@@ -153,6 +162,7 @@ struct InviteUsersScreen_Previews: PreviewProvider, TestablePreview {
     static let searchingViewModel = makeViewModel(searchQuery: "Alice")
     static let selectedViewModel = makeViewModel(hasSelection: true)
     static let confirmSelectedViewModel = makeViewModel(shouldConfirm: true)
+    static let draftViewModel = makeViewModel(roomType: .draft(mandatoryInvitees: [.mockAlice]), isSkippable: false)
     
     static var previews: some View {
         ElementNavigationStack {
@@ -179,9 +189,19 @@ struct InviteUsersScreen_Previews: PreviewProvider, TestablePreview {
             InviteUsersScreen(context: confirmSelectedViewModel.context)
         }
         .previewDisplayName("Confirm Selected")
+        
+        ElementNavigationStack {
+            InviteUsersScreen(context: draftViewModel.context)
+        }
+        .previewDisplayName("Draft (locked invitee)")
+        .snapshotPreferences(expect: draftViewModel.context.$viewState.map { !$0.mandatoryInvitees.isEmpty })
     }
     
-    static func makeViewModel(searchQuery: String? = nil, hasSelection: Bool = false, shouldConfirm: Bool = false) -> InviteUsersScreenViewModel {
+    static func makeViewModel(searchQuery: String? = nil,
+                              hasSelection: Bool = false,
+                              shouldConfirm: Bool = false,
+                              roomType: InviteUsersScreenRoomType? = nil,
+                              isSkippable: Bool = true) -> InviteUsersScreenViewModel {
         let clientProxy = ClientProxyMock(.init())
         clientProxy.recentConversationCounterpartsReturnValue = [.mockAlice, .mockBob, .mockCharlie, .mockDan, .mockVerbose]
 
@@ -189,8 +209,8 @@ struct InviteUsersScreen_Previews: PreviewProvider, TestablePreview {
         userDiscoveryService.searchProfilesWithReturnValue = .success([.mockAlice])
 
         let viewModel = InviteUsersScreenViewModel(userSession: UserSessionMock(.init(clientProxy: clientProxy)),
-                                                   roomProxy: JoinedRoomProxyMock(.init(members: [])),
+                                                   roomType: roomType ?? .existingRoom(roomProxy: JoinedRoomProxyMock(.init(members: []))),
-                                                   isSkippable: true,
+                                                   isSkippable: isSkippable,
                                                    userDiscoveryService: userDiscoveryService,
                                                    userIndicatorController: UserIndicatorControllerMock(),
                                                    appSettings: AppSettings())

ElementX/Sources/Screens/InviteUsersScreen/View/InviteUsersScreenSelectedItem.swift

@@ -12,6 +12,7 @@ import SwiftUI
 struct InviteUsersScreenSelectedItem: View {
     let user: UserProfileProxy
     let mediaProvider: MediaProviderProtocol?
+    var isLocked = false
     let dismissAction: () -> Void
     
     var body: some View {
@@ -25,18 +26,27 @@ struct InviteUsersScreenSelectedItem: View {
                 .lineLimit(1)
         }
         .accessibilityElement(children: .combine)
-        .accessibilityAction(named: L10n.actionRemove, dismissAction)
+        .accessibilityActions {
+            if !isLocked {
+                Button(L10n.actionRemove, action: dismissAction)
+            }
+        }
     }
     
     // MARK: - Private
     
+    @ViewBuilder
     var avatar: some View {
-        LoadableAvatarImage(url: user.avatarURL,
+        let avatarImage = LoadableAvatarImage(url: user.avatarURL,
                                               name: user.displayName,
                                               contentID: user.userID,
                                               avatarSize: .user(on: .inviteUsers),
                                               mediaProvider: mediaProvider)
-            .overlayRemoveItemButton(action: dismissAction)
+        if isLocked {
+            avatarImage
+        } else {
+            avatarImage.overlayRemoveItemButton(action: dismissAction)
+        }
     }
     
     var closeButtonLabel: some View {

ElementX/Sources/Screens/RoomDetailsScreen/RoomDetailsScreenCoordinator.swift

@@ -26,6 +26,7 @@ enum RoomDetailsScreenCoordinatorAction {
     case presentRoomDetailsEditScreen
     case presentNotificationSettingsScreen
     case presentInviteUsersScreen
+    case presentInviteToNewRoom(invitee: UserProfileProxy)
     case presentPollsHistory
     case presentRolesAndPermissionsScreen
     case presentCall(isVoiceCall: Bool)
@@ -71,6 +72,8 @@ final class RoomDetailsScreenCoordinator: CoordinatorProtocol {
                     actionsSubject.send(.presentRoomMembersList)
                 case .requestInvitePeoplePresentation:
                     actionsSubject.send(.presentInviteUsersScreen)
+                case .requestInviteToNewRoomPresentation(let invitee):
+                    actionsSubject.send(.presentInviteToNewRoom(invitee: invitee))
                 case .leftRoom:
                     actionsSubject.send(.leftRoom)
                 case .requestEditDetailsPresentation:

ElementX/Sources/Screens/RoomDetailsScreen/RoomDetailsScreenModels.swift

@@ -18,6 +18,7 @@ enum RoomDetailsScreenViewModelAction: Equatable {
     case requestMemberDetailsPresentation
     case requestRecipientDetailsPresentation(userID: String)
     case requestInvitePeoplePresentation
+    case requestInviteToNewRoomPresentation(selectedInvitee: UserProfileProxy)
     case leftRoom
     case requestEditDetailsPresentation
     case requestPollsHistoryPresentation
@@ -98,6 +99,7 @@ struct RoomDetailsScreenViewState: BindableState {
             }
             shortcuts.append(.videoCall)
         }
+        // The invite flow is different for DMs
         if dmRecipientInfo == nil, canInviteUsers {
             shortcuts.append(.invite)
         }

ElementX/Sources/Screens/RoomDetailsScreen/RoomDetailsScreenViewModel.swift

@@ -110,7 +110,11 @@ class RoomDetailsScreenViewModel: RoomDetailsScreenViewModelType, RoomDetailsScr
         case .processTapPeople:
             actionsSubject.send(.requestMemberDetailsPresentation)
         case .processTapInvite:
+            if let dmRecipient = state.dmRecipientInfo {
+                actionsSubject.send(.requestInviteToNewRoomPresentation(selectedInvitee: .init(member: dmRecipient.member)))
+            } else {
                 actionsSubject.send(.requestInvitePeoplePresentation)
+            }
         case .processTapLeave:
             processTapToLeave()
         case .confirmLeave:

ElementX/Sources/Screens/RoomDetailsScreen/View/RoomDetailsScreen.swift

@@ -22,6 +22,11 @@ struct RoomDetailsScreen: View {
             
             aboutSection
             
+            // The invitation flow is different for DMs
+            if context.viewState.dmRecipientInfo != nil {
+                inviteToNewRoomSection
+            }
+            
             configurationSection
             
             if context.viewState.dmRecipientInfo == nil {
@@ -165,6 +170,13 @@ struct RoomDetailsScreen: View {
         }
     }
     
+    private var inviteToNewRoomSection: some View {
+        ListRow(label: .default(title: L10n.actionInvite, icon: \.userAdd),
+                kind: .navigationLink {
+                    context.send(viewAction: .processTapInvite)
+                })
+    }
+    
     private var configurationSection: some View {
         Section {
             ListRow(label: .default(title: L10n.screenRoomDetailsNotificationTitle, icon: \.notifications),

ElementX/Sources/Services/Client/ClientProxy.swift

@@ -516,7 +516,7 @@ class ClientProxy: ClientProxyProtocol {
         }
     }
     
-    func createRoom(name: String,
+    func createRoom(name: String?,
                     topic: String?,
                     accessType: CreateRoomAccessType,
                     isSpace: Bool,

ElementX/Sources/Services/Client/ClientProxyProtocol.swift

@@ -183,7 +183,7 @@ protocol ClientProxyProtocol: AnyObject {
     
     func createDirectRoom(with userID: String, expectedRoomName: String?) async -> Result<String, ClientProxyError>
     
-    func createRoom(name: String,
+    func createRoom(name: String?,
                     topic: String?,
                     accessType: CreateRoomAccessType,
                     isSpace: Bool,

PreviewTests/Sources/__Snapshots__/PreviewTests/inviteUsersScreen.Draft-locked-invitee-iPad-en-GB.png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 151997

PreviewTests/Sources/__Snapshots__/PreviewTests/inviteUsersScreen.Draft-locked-invitee-iPad-pseudo.png

@@ -0,0 +1,3 @@
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+size 156413

PreviewTests/Sources/__Snapshots__/PreviewTests/inviteUsersScreen.Draft-locked-invitee-iPhone-en-GB.png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 99061

PreviewTests/Sources/__Snapshots__/PreviewTests/inviteUsersScreen.Draft-locked-invitee-iPhone-pseudo.png

@@ -0,0 +1,3 @@
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+size 102079

PreviewTests/Sources/__Snapshots__/PreviewTests/inviteUsersScreen.Selected-iPad-en-GB.png

@@ -1,3 +1,3 @@
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-size 151210
+size 149551

PreviewTests/Sources/__Snapshots__/PreviewTests/inviteUsersScreen.Selected-iPad-pseudo.png

@@ -1,3 +1,3 @@
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-size 155938
+size 153569

PreviewTests/Sources/__Snapshots__/PreviewTests/inviteUsersScreen.Selected-iPhone-en-GB.png

@@ -1,3 +1,3 @@
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-size 98426
+size 97084

PreviewTests/Sources/__Snapshots__/PreviewTests/inviteUsersScreen.Selected-iPhone-pseudo.png

@@ -1,3 +1,3 @@
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-size 101873
+size 100304

PreviewTests/Sources/__Snapshots__/PreviewTests/roomDetailsScreen.DM-Room-Verification-Violation-iPad-en-GB.png

@@ -1,3 +1,3 @@
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-size 244787
+size 236706

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@@ -1,3 +1,3 @@
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-size 253574
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PreviewTests/Sources/__Snapshots__/PreviewTests/roomDetailsScreen.DM-Room-Verified-iPad-en-GB.png

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-size 244787
+size 236706

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-size 181065
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-size 185625
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UnitTests/Sources/InviteUsersViewModelTests.swift

@@ -87,6 +87,8 @@ final class InviteUsersScreenViewModelTests {
             switch action {
             case .dismiss:
                 return true
+            case .openRoom:
+                return false
             }
         }
         
@@ -122,6 +124,8 @@ final class InviteUsersScreenViewModelTests {
             switch action {
             case .dismiss:
                 return true
+            case .openRoom:
+                return false
             }
         }
         
@@ -159,6 +163,74 @@ final class InviteUsersScreenViewModelTests {
         try await deferredState.fulfill()
     }
     
+    // MARK: - Draft (new room)
+    
+    @Test
+    func createsNewRoomInDraftMode() async throws {
+        userDiscoveryService = UserDiscoveryServiceMock()
+        userDiscoveryService.searchProfilesWithReturnValue = .success([])
+        
+        clientProxy = ClientProxyMock(.init(userID: "@mock:client.com"))
+        let newRoomID = "!newroom:example.com"
+        clientProxy.createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartReturnValue = .success(newRoomID)
+        
+        viewModel = InviteUsersScreenViewModel(userSession: UserSessionMock(.init(clientProxy: clientProxy)),
+                                               roomType: .draft(mandatoryInvitees: [.mockAlice]),
+                                               isSkippable: false,
+                                               userDiscoveryService: userDiscoveryService,
+                                               userIndicatorController: UserIndicatorControllerMock(),
+                                               appSettings: AppSettings())
+        
+        // The locked invitee starts pre-selected and locked.
+        #expect(context.viewState.selectedUsers.map(\.userID) == [UserProfileProxy.mockAlice.userID])
+        #expect(context.viewState.isInviteeMandatory(.mockAlice))
+        // The proceed button is disabled while the only selected user is the locked invitee.
+        #expect(!context.viewState.hasInvitableSelectedUsers)
+        
+        // Selecting a non-locked user enables the proceed button.
+        var deferredState = deferFulfillment(viewModel.context.$viewState) { state in
+            state.isUserSelected(.mockBob)
+        }
+        context.send(viewAction: .toggleUser(.mockBob))
+        try await deferredState.fulfill()
+        #expect(context.viewState.hasInvitableSelectedUsers)
+        
+        // Deselecting the non-locked user disables the proceed button again.
+        deferredState = deferFulfillment(viewModel.context.$viewState) { state in
+            !state.isUserSelected(.mockBob)
+        }
+        context.send(viewAction: .toggleUser(.mockBob))
+        try await deferredState.fulfill()
+        #expect(!context.viewState.hasInvitableSelectedUsers)
+        
+        // Re-select the non-locked user before proceeding.
+        deferredState = deferFulfillment(viewModel.context.$viewState) { state in
+            state.isUserSelected(.mockBob)
+        }
+        context.send(viewAction: .toggleUser(.mockBob))
+        try await deferredState.fulfill()
+        
+        let deferredAction = deferFulfillment(viewModel.actions) { action in
+            if case .openRoom(let roomID) = action, roomID == newRoomID {
+                return true
+            }
+            return false
+        }
+        
+        context.send(viewAction: .proceed)
+        
+        try await deferredAction.fulfill()
+        
+        let args = try #require(clientProxy.createRoomNameTopicAccessTypeIsSpaceUserIDsAvatarURLAliasLocalPartReceivedArguments)
+        #expect(args.name == nil)
+        #expect(args.topic == nil)
+        #expect(args.accessType == .private)
+        #expect(args.isSpace == false)
+        #expect(args.userIDs == [UserProfileProxy.mockAlice.userID, UserProfileProxy.mockBob.userID])
+        #expect(args.avatarURL == nil)
+        #expect(args.aliasLocalPart == nil)
+    }
+    
     // MARK: - Helpers
     
     private func setupViewModel(roomProxy: JoinedRoomProxyProtocol, isSkippable: Bool) {
@@ -168,7 +240,7 @@ final class InviteUsersScreenViewModelTests {
         clientProxy = ClientProxyMock(.init(userID: "@mock:client.com"))
         
         let viewModel = InviteUsersScreenViewModel(userSession: UserSessionMock(.init(clientProxy: clientProxy)),
-                                                   roomProxy: roomProxy,
+                                                   roomType: .existingRoom(roomProxy: roomProxy),
                                                    isSkippable: isSkippable,
                                                    userDiscoveryService: userDiscoveryService,
                                                    userIndicatorController: UserIndicatorControllerMock(),