[News] support location event

skills/csharp/experimental/newsskill/Dialogs/MainDialog.cs

@@ -167,6 +167,42 @@ public MainDialog(
             return result;
         }
 
+        protected override async Task OnEventActivityAsync(DialogContext dc, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            var ev = dc.Context.Activity.AsEventActivity();
+            var value = ev.Value?.ToString();
+
+            var state = await _stateAccessor.GetAsync(dc.Context, () => new NewsSkillState());
+
+            switch (ev.Name)
+            {
+                case Events.Location:
+                    {
+                        // Test trigger with
+                        // /event:{ "Name": "Location", "Value": "34.05222222222222,-118.2427777777777" }
+                        if (!string.IsNullOrEmpty(value))
+                        {
+                            var coords = value.Split(',');
+                            if (coords.Length == 2)
+                            {
+                                if (double.TryParse(coords[0], out var lat) && double.TryParse(coords[1], out var lng))
+                                {
+                                    state.CurrentCoordinates = value;
+                                }
+                            }
+                        }
+
+                        break;
+                    }
+
+                default:
+                    {
+                        await dc.Context.SendActivityAsync(new Activity(type: ActivityTypes.Trace, text: $"Unknown Event '{ev.Name ?? "undefined"}' was received but not processed."));
+                        break;
+                    }
+            }
+        }
+
         private async Task<InterruptionAction> OnCancel(DialogContext dc)
         {
             await _responder.ReplyWith(dc.Context, MainResponses.Cancelled);
@@ -193,5 +229,10 @@ private async Task PopulateStateFromSemanticAction(ITurnContext context)
                 state.CurrentCoordinates = locationObj;
             }
         }
+
+        public class Events
+        {
+            public const string Location = "Location";
+        }
     }
 }