Final changes for Room Moderation (#2576)

* Add confirmation that the user would like to discard unsaved changes.

* Update string on permissions screen.

* Fix UI tests and update snapshots.

* Fix integration tests.

* Run periphery for Moderation feature.

ElementX/Sources/Screens/RoomChangeRolesScreen/RoomChangeRolesScreenModels.swift

@@ -89,6 +89,8 @@ struct RoomChangeRolesScreenViewStateBindings {
 enum RoomChangeRolesScreenAlertType {
     /// A warning that a particular promotion can't be undone.
     case promotionWarning
+    /// A confirmation that the user would like to discard any unsaved changes.
+    case discardChanges
     /// The generic error message.
     case error
 }
@@ -100,4 +102,6 @@ enum RoomChangeRolesScreenViewAction {
     case demoteMember(RoomMemberDetails)
     /// Save all the changes that the user has made.
     case save
+    /// Discard any changes and hide the screen.
+    case cancel
 }

ElementX/Sources/Screens/RoomChangeRolesScreen/RoomChangeRolesScreenViewModel.swift

@@ -74,6 +74,8 @@ class RoomChangeRolesScreenViewModel: RoomChangeRolesScreenViewModelType, RoomCh
             } else {
                 Task { await save() }
             }
+        case .cancel:
+            confirmDiscardChanges()
         }
     }
     
@@ -148,6 +150,14 @@ class RoomChangeRolesScreenViewModel: RoomChangeRolesScreenViewModelType, RoomCh
         }
     }
     
+    private func confirmDiscardChanges() {
+        state.bindings.alertInfo = AlertInfo(id: .discardChanges,
+                                             title: L10n.screenRoomChangeRoleUnsavedChangesTitle,
+                                             message: L10n.screenRoomChangeRoleUnsavedChangesDescription,
+                                             primaryButton: .init(title: L10n.actionSave) { Task { await self.save() } },
+                                             secondaryButton: .init(title: L10n.actionDiscard, role: .cancel) { self.actionsSubject.send(.complete) })
+    }
+    
     // MARK: Loading indicator
     
     private static let indicatorID = "SavingRoomRoles"

ElementX/Sources/Screens/RoomChangeRolesScreen/View/RoomChangeRolesScreen.swift

@@ -61,15 +61,6 @@ struct RoomChangeRolesScreen: View {
         }
     }
     
-    private var noResultsContent: some View {
-        Text(L10n.commonNoResults)
-            .font(.compound.bodyLG)
-            .foregroundColor(.compound.textSecondary)
-            .frame(maxWidth: .infinity)
-            .listRowBackground(Color.clear)
-            .accessibilityIdentifier(A11yIdentifiers.startChatScreen.searchNoResults)
-    }
-    
     @ViewBuilder
     private var membersSection: some View {
         if !context.viewState.visibleMembers.isEmpty {
@@ -123,6 +114,14 @@ struct RoomChangeRolesScreen: View {
             }
             .disabled(!context.viewState.hasChanges)
         }
+        
+        if context.viewState.hasChanges {
+            ToolbarItem(placement: .cancellationAction) {
+                Button(L10n.actionCancel) {
+                    context.send(viewAction: .cancel)
+                }
+            }
+        }
     }
 }