Add indicator after leaving a room (#981)

* Refactor UserIndicatorModalView to support no progress

* Add room left indicator in HomeScreenViewModel

* Apply PR suggestion

ElementX/Sources/Other/UserIndicator/UserIndicator.swift

@@ -14,6 +14,7 @@
 // limitations under the License.
 //
 
+import Combine
 import Foundation
 
 enum UserIndicatorType {
@@ -30,10 +31,24 @@ struct UserIndicator: Equatable, Identifiable {
             lhs.persistent == rhs.persistent
     }
 
+    enum LoaderType {
+        case unknownProgress
+        case progress(ProgressPublisher)
+    }
+    
     var id: String = UUID().uuidString
     var type = UserIndicatorType.toast
     var title: String
     var iconName: String?
     var persistent = false
-    var progressPublisher: ProgressPublisher?
+    var loaderType: LoaderType? = .unknownProgress
+    
+    var progressPublisher: AnyPublisher<Double, Never> {
+        switch loaderType {
+        case .none, .unknownProgress:
+            return Empty().eraseToAnyPublisher()
+        case .some(.progress(let progress)):
+            return progress.publisher.eraseToAnyPublisher()
+        }
+    }
 }

ElementX/Sources/Other/UserIndicator/UserIndicatorModalView.swift

@@ -24,10 +24,10 @@ struct UserIndicatorModalView: View {
     var body: some View {
         ZStack {
             VStack(spacing: 12.0) {
-                if let progressFraction {
+                if case .unknownProgress = indicator.loaderType {
-                    ProgressView(value: progressFraction)
-                } else {
                     ProgressView()
+                } else if case .progress = indicator.loaderType {
+                    ProgressView(value: progressFraction)
                 }
 
                 HStack {
@@ -45,7 +45,7 @@ struct UserIndicatorModalView: View {
             .background(Color.element.quinaryContent)
             .clipShape(RoundedCornerShape(radius: 12.0, corners: .allCorners))
             .shadow(color: .black.opacity(0.1), radius: 10.0, y: 4.0)
-            .onReceive(indicator.progressPublisher?.publisher ?? Empty().eraseToAnyPublisher()) { progress in
+            .onReceive(indicator.progressPublisher) { progress in
                 progressFraction = progress
             }
             .transition(.opacity)
@@ -68,9 +68,16 @@ struct UserIndicatorModalView_Previews: PreviewProvider {
             UserIndicatorModalView(indicator: UserIndicator(type: .modal,
                                                             title: "Successfully logged in",
                                                             iconName: "checkmark",
-                                                            progressPublisher: ProgressTracker(initialValue: 0.5))
+                                                            loaderType: .progress(ProgressTracker(initialValue: 0.5)))
             )
             .previewDisplayName("Progress Bar")
+            
+            UserIndicatorModalView(indicator: UserIndicator(type: .modal,
+                                                            title: "Successfully logged in",
+                                                            iconName: "checkmark",
+                                                            loaderType: .none)
+            )
+            .previewDisplayName("No progress")
         }
     }
 }

ElementX/Sources/Screens/BugReportScreen/BugReportScreenCoordinator.swift

@@ -91,7 +91,7 @@ final class BugReportScreenCoordinator: CoordinatorProtocol {
                           type: .modal,
                           title: label,
                           persistent: true,
-                          progressPublisher: progressPublisher)
+                          loaderType: .progress(progressPublisher))
         )
     }
     

ElementX/Sources/Screens/HomeScreen/HomeScreenViewModel.swift

@@ -346,6 +346,11 @@ class HomeScreenViewModel: HomeScreenViewModelType, HomeScreenViewModelProtocol
             case .none, .some(.failure):
                 state.bindings.alertInfo = AlertInfo(id: UUID(), title: L10n.errorUnknown)
             case .some(.success):
+                ServiceLocator.shared.userIndicatorController.submitIndicator(UserIndicator(id: UUID().uuidString,
+                                                                                            type: .modal,
+                                                                                            title: L10n.commonCurrentUserLeftRoom,
+                                                                                            iconName: "checkmark",
+                                                                                            loaderType: .none))
                 callback?(.roomLeft(roomIdentifier: roomId))
             }
         }