Replaces presence based Typing Indicators with Ephemeral Typing Indicators as per [1].

Co-authored-by: Lawrence Forooghian <lawrence@forooghian.com>

[1] - All commits up to and including ably/specification@2aa9fc2

Author: umair-ably

AblyChat.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -413,7 +413,7 @@ struct ContentView: View {
         if newMessage.isEmpty {
             try await room().typing.stop()
         } else {
-            try await room().typing.start()
+            try await room().typing.keystroke()
         }
     }
 }

Example/AblyChatExample/ContentView.swift

@@ -247,10 +247,13 @@ class MockTyping: Typing {
 
     private func createSubscription() -> MockSubscription<TypingEvent> {
         mockSubscriptions.create(randomElement: {
-            TypingEvent(currentlyTyping: [
-                MockStrings.names.randomElement()!,
-                MockStrings.names.randomElement()!,
-            ])
+            TypingEvent(
+                currentlyTyping: [
+                    MockStrings.names.randomElement()!,
+                    MockStrings.names.randomElement()!,
+                ],
+                change: .init(clientId: MockStrings.names.randomElement()!, type: .started)
+            )
         }, interval: 2)
     }
 
@@ -262,12 +265,12 @@ class MockTyping: Typing {
         Set(MockStrings.names.shuffled().prefix(2))
     }
 
-    func start() async throws(ARTErrorInfo) {
-        mockSubscriptions.emit(TypingEvent(currentlyTyping: [clientID]))
+    func keystroke() async throws(ARTErrorInfo) {
+        mockSubscriptions.emit(TypingEvent(currentlyTyping: [clientID], change: .init(clientId: clientID, type: .started)))
     }
 
     func stop() async throws(ARTErrorInfo) {
-        mockSubscriptions.emit(TypingEvent(currentlyTyping: []))
+        mockSubscriptions.emit(TypingEvent(currentlyTyping: [], change: .init(clientId: clientID, type: .stopped)))
     }
 
     func onDiscontinuity(bufferingPolicy _: BufferingPolicy) -> Subscription<DiscontinuityEvent> {

Example/AblyChatExample/Mocks/MockClients.swift

@@ -38,6 +38,14 @@ let package = Package(
             url: "https://github.com/apple/swift-docc-plugin",
             from: "1.0.0"
         ),
+        .package(
+            url: "https://github.com/groue/Semaphore",
+            from: "0.1.0"
+        ),
+        .package(
+            url: "https://github.com/pointfreeco/swift-clocks",
+            from: "1.0.0"
+        ),
     ],
     targets: [
         .target(
@@ -51,6 +59,10 @@ let package = Package(
                     name: "AsyncAlgorithms",
                     package: "swift-async-algorithms"
                 ),
+                .product(
+                    name: "Semaphore",
+                    package: "Semaphore"
+                ),
             ]
         ),
         .testTarget(
@@ -61,6 +73,10 @@ let package = Package(
                     name: "AsyncAlgorithms",
                     package: "swift-async-algorithms"
                 ),
+                .product(
+                    name: "Clocks",
+                    package: "swift-clocks"
+                ),
             ],
             resources: [
                 .copy("ably-common"),
@@ -81,6 +97,10 @@ let package = Package(
                     name: "Table",
                     package: "Table"
                 ),
+                .product(
+                    name: "Semaphore",
+                    package: "Semaphore"
+                ),
             ]
         ),
     ]