Update views on a timer

Kordophone/Kordophone.xcodeproj/project.pbxproj

@@ -19,6 +19,8 @@
 		4F48B6B1282AD977001B669B /* ConversationView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4F48B6AF282AD977001B669B /* ConversationView.swift */; };
 		4F48B6B3282AF3A6001B669B /* MessageView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4F48B6B2282AF3A6001B669B /* MessageView.swift */; };
 		4F48B6B4282AF3A6001B669B /* MessageView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4F48B6B2282AF3A6001B669B /* MessageView.swift */; };
+		4F48B6B6282B6DB4001B669B /* IntervalUpdater.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4F48B6B5282B6DB4001B669B /* IntervalUpdater.swift */; };
+		4F48B6B7282B6DB4001B669B /* IntervalUpdater.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4F48B6B5282B6DB4001B669B /* IntervalUpdater.swift */; };
 		4F8A65FC280A93B0007A7431 /* Tests_iOS.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4F8A65FB280A93B0007A7431 /* Tests_iOS.swift */; };
 		4F8A65FE280A93B0007A7431 /* Tests_iOSLaunchTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4F8A65FD280A93B0007A7431 /* Tests_iOSLaunchTests.swift */; };
 		4F8A6608280A93B0007A7431 /* Tests_macOS.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4F8A6607280A93B0007A7431 /* Tests_macOS.swift */; };
@@ -56,6 +58,7 @@
 		4F48B6AC282A3D00001B669B /* ConversationRow.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ConversationRow.swift; sourceTree = "<group>"; };
 		4F48B6AF282AD977001B669B /* ConversationView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ConversationView.swift; sourceTree = "<group>"; };
 		4F48B6B2282AF3A6001B669B /* MessageView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MessageView.swift; sourceTree = "<group>"; };
+		4F48B6B5282B6DB4001B669B /* IntervalUpdater.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = IntervalUpdater.swift; sourceTree = "<group>"; };
 		4F8A65E3280A93AE007A7431 /* KordophoneApp.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = KordophoneApp.swift; sourceTree = "<group>"; };
 		4F8A65E4280A93AE007A7431 /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
 		4F8A65E5280A93AF007A7431 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
@@ -137,6 +140,7 @@
 			isa = PBXGroup;
 			children = (
 				4F8A65E3280A93AE007A7431 /* KordophoneApp.swift */,
+				4F48B6B5282B6DB4001B669B /* IntervalUpdater.swift */,
 				4F8A65E4280A93AE007A7431 /* ContentView.swift */,
 				4F48B6A6282A3559001B669B /* LoginView.swift */,
 				4F48B6A9282A365B001B669B /* ConversationList.swift */,
@@ -352,6 +356,7 @@
 			files = (
 				4F48B6AA282A365B001B669B /* ConversationList.swift in Sources */,
 				4F48B6A7282A3559001B669B /* LoginView.swift in Sources */,
+				4F48B6B6282B6DB4001B669B /* IntervalUpdater.swift in Sources */,
 				4F8A660D280A93B0007A7431 /* ContentView.swift in Sources */,
 				4F48B6AD282A3D00001B669B /* ConversationRow.swift in Sources */,
 				4F8A660B280A93B0007A7431 /* KordophoneApp.swift in Sources */,
@@ -366,6 +371,7 @@
 			files = (
 				4F48B6AB282A365B001B669B /* ConversationList.swift in Sources */,
 				4F48B6A8282A3559001B669B /* LoginView.swift in Sources */,
+				4F48B6B7282B6DB4001B669B /* IntervalUpdater.swift in Sources */,
 				4F8A660E280A93B0007A7431 /* ContentView.swift in Sources */,
 				4F48B6AE282A3D00001B669B /* ConversationRow.swift in Sources */,
 				4F8A660C280A93B0007A7431 /* KordophoneApp.swift in Sources */,

Kordophone/Shared/ConversationList.swift

@@ -32,6 +32,7 @@ struct ConversationListWrapper : View {
     
     @State private var conversations = [Conversation]()
     @EnvironmentObject private var connection: Connection
+    @StateObject private var updater = IntervalUpdater(5)
     
     private func refresh() {
         Task {
@@ -47,5 +48,8 @@ struct ConversationListWrapper : View {
             .onChange(of: connection.authenticated) { newValue in
                 refresh()
             }
+            .onChange(of: updater.seed) { newValue in
+                refresh()
+            }
     }
 }

Kordophone/Shared/ConversationView.swift

@@ -59,6 +59,7 @@ struct ConversationViewWrapper : View {
     var conversation: Conversation
     @State private var messages = [Message]()
     @EnvironmentObject private var connection: Connection
+    @StateObject private var updater = IntervalUpdater(5)
     
     private func refresh() {
         Task {
@@ -79,5 +80,8 @@ struct ConversationViewWrapper : View {
         .onAppear {
             refresh()
         }
+        .onChange(of: updater.seed) { newValue in
+            refresh()
+        }
     }
 }

Kordophone/Shared/IntervalUpdater.swift

@@ -0,0 +1,12 @@
+
+import Foundation
+
+class IntervalUpdater : ObservableObject {
+    @Published var seed = 0
+    init(_ interval: TimeInterval) {
+        Timer.scheduledTimer(withTimeInterval: interval,
+                             repeats: true) { [weak self] _ in
+            self?.seed += 1
+        }
+    }
+}