Initial solution

For optional confirmation dialogue box.

source/HomeAssistantConfirmation.mc

@@ -0,0 +1,48 @@
+//-----------------------------------------------------------------------------------
+//
+// Distributed under MIT Licence
+//   See https://github.com/house-of-abbey/GarminHomeAssistant/blob/main/LICENSE.
+//
+//-----------------------------------------------------------------------------------
+//
+// GarminHomeAssistant is a Garmin IQ application written in Monkey C and routinely
+// tested on a Venu 2 device. The source code is provided at:
+//            https://github.com/house-of-abbey/GarminHomeAssistant.
+//
+// P A Abbey & J D Abbey & SomeoneOnEarth, 19 November 2023
+//
+//
+// Description:
+//
+// Calling a Home Assistant confirmation dialogue view.
+//
+//-----------------------------------------------------------------------------------
+
+using Toybox.Lang;
+// Required for callback method definition
+typedef Method as Toybox.Lang.Method;
+using Toybox.WatchUi;
+
+class HomeAssistantConfirmation extends WatchUi.Confirmation {
+
+    function initialize() {
+        WatchUi.Confirmation.initialize(WatchUi.loadResource($.Rez.Strings.Confirm));
+    }
+
+}
+
+class HomeAssistantConfirmationDelegate extends WatchUi.ConfirmationDelegate {
+    private var confirmMethod;
+
+    function initialize(callback as Method() as Void) {
+        WatchUi.ConfirmationDelegate.initialize();
+        confirmMethod = callback;
+    }
+
+    function onResponse(response) as Lang.Boolean {
+        if (response == WatchUi.CONFIRM_YES) {
+            confirmMethod.invoke();
+        }
+        return true;
+    }
+}