Add share link in start chat flow (#926)

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

@@ -0,0 +1,43 @@
+//
+// Copyright 2023 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 SwiftUI
+
+struct MatrixUserShareLink<Label: View>: View {
+    private let permalink: URL?
+    private let label: Label
+    
+    init(userID: String, @ViewBuilder label: () -> Label) {
+        self.label = label()
+        permalink = try? PermalinkBuilder.permalinkTo(userIdentifier: userID)
+    }
+    
+    var body: some View {
+        if let permalink {
+            ShareLink(item: L10n.inviteFriendsText(InfoPlistReader.main.bundleDisplayName, permalink.absoluteString)) {
+                label
+            }
+        }
+    }
+}
+
+struct MatrixUserPermalink_Previews: PreviewProvider {
+    static var previews: some View {
+        MatrixUserShareLink(userID: "@someone:somewhere.org") {
+            Label("Share", systemImage: "square.and.arrow.up")
+        }
+    }
+}

ElementX/Sources/Screens/HomeScreen/HomeScreenModels.swift

@@ -71,9 +71,6 @@ struct HomeScreenViewState: BindableState {
     var rooms: [HomeScreenRoom] = []
     var roomListMode: HomeScreenRoomListMode = .skeletons
     
-    /// The URL that will be shared when inviting friends to use the app.
-    let invitePermalink: URL?
-    
     var hasPendingInvitations = false
     var hasUnreadPendingInvitations = false
     

ElementX/Sources/Screens/HomeScreen/HomeScreenViewModel.swift

@@ -40,8 +40,7 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
         allRoomsSummaryProvider = userSession.clientProxy.allRoomsSummaryProvider
         invitesSummaryProvider = userSession.clientProxy.invitesSummaryProvider
         
-        let invitePermalink = try? PermalinkBuilder.permalinkTo(userIdentifier: userSession.userID)
-        super.init(initialViewState: HomeScreenViewState(userID: userSession.userID, invitePermalink: invitePermalink),
+        super.init(initialViewState: HomeScreenViewState(userID: userSession.userID),
                    imageProvider: userSession.mediaProvider)
         
         userSession.callbacks

ElementX/Sources/Screens/HomeScreen/View/HomeScreen.swift

@@ -139,10 +139,8 @@ struct HomeScreen: View {
                 }
             }
             Section {
-                if let permalink = context.viewState.invitePermalink {
-                    ShareLink(item: permalink) {
-                        Label(L10n.actionInvite, systemImage: "square.and.arrow.up")
-                    }
+                MatrixUserShareLink(userID: context.viewState.userID) {
+                    Label(L10n.actionInvite, systemImage: "square.and.arrow.up")
                 }
                 Button(action: feedback) {
                     Label(L10n.commonReportABug, systemImage: "questionmark.circle")

ElementX/Sources/Screens/StartChatScreen/StartChatScreenModels.swift

@@ -28,6 +28,7 @@ enum StartChatScreenViewModelAction {
 }
 
 struct StartChatScreenViewState: BindableState {
+    let userID: String
     var bindings = StartChatScreenViewStateBindings()
     var usersSection: UserDiscoverySection = .init(type: .suggestions, users: [])
 
@@ -50,6 +51,5 @@ struct StartChatScreenViewStateBindings {
 enum StartChatScreenViewAction {
     case close
     case createRoom
-    case inviteFriends
     case selectUser(UserProfile)
 }

ElementX/Sources/Screens/StartChatScreen/StartChatScreenViewModel.swift

@@ -34,7 +34,7 @@ class StartChatScreenViewModel: StartChatScreenViewModelType, StartChatScreenVie
         self.userSession = userSession
         self.userIndicatorController = userIndicatorController
         self.userDiscoveryService = userDiscoveryService
-        super.init(initialViewState: StartChatScreenViewState(), imageProvider: userSession.mediaProvider)
+        super.init(initialViewState: StartChatScreenViewState(userID: userSession.userID), imageProvider: userSession.mediaProvider)
         
         setupBindings()
     }
@@ -47,8 +47,6 @@ class StartChatScreenViewModel: StartChatScreenViewModelType, StartChatScreenVie
             actionsSubject.send(.close)
         case .createRoom:
             actionsSubject.send(.createRoom)
-        case .inviteFriends:
-            break
         case .selectUser(let user):
             showLoadingIndicator()
             Task {

ElementX/Sources/Screens/StartChatScreen/View/StartChatScreen.swift

@@ -74,7 +74,7 @@ struct StartChatScreen: View {
     
     private var inviteFriendsSection: some View {
         Section {
-            Button(action: inviteFriends) {
+            MatrixUserShareLink(userID: context.viewState.userID) {
                 Label(L10n.actionInviteFriendsToApp(InfoPlistReader.main.bundleDisplayName), systemImage: "square.and.arrow.up")
             }
             .buttonStyle(FormButtonStyle())
@@ -121,10 +121,6 @@ struct StartChatScreen: View {
         context.send(viewAction: .createRoom)
     }
     
-    private func inviteFriends() {
-        context.send(viewAction: .inviteFriends)
-    }
-    
     private func close() {
         context.send(viewAction: .close)
     }