Working on machine events !

1 files changed, 17 insertions, 2 deletions

diff --git a/Software/Visual_Studio/Tango.Integration/Operation/DefaultMachineEventsStateProvider.cs b/Software/Visual_Studio/Tango.Integration/Operation/DefaultMachineEventsStateProvider.cs
index 9a5119330..afa7e74b9 100644
--- a/Software/Visual_Studio/Tango.Integration/Operation/DefaultMachineEventsStateProvider.cs
+++ b/Software/Visual_Studio/Tango.Integration/Operation/DefaultMachineEventsStateProvider.cs
@@ -55,6 +55,11 @@ namespace Tango.Integration.Operation
         public event EventHandler<IEnumerable<MachinesEvent>> EventsResolved;
 
         /// <summary>
+        /// Occurs when the collection of current events has changed.
+        /// </summary>
+        public event EventHandler<IEnumerable<MachinesEvent>> EventsChanged;
+
+        /// <summary>
         /// Initializes a new instance of the <see cref="DefaultMachineEventsStateProvider"/> class.
         /// </summary>
         public DefaultMachineEventsStateProvider()
@@ -85,14 +90,15 @@ namespace Tango.Integration.Operation
                 OnEventsResolved(oldEvents);
             }
 
-            OnEventsReceived(_events);
-
             RaisePropertyChanged(nameof(HasEvents));
 
             if (newEvents.Count > 0 || oldEvents.Count > 0)
             {
                 RaisePropertyChanged(nameof(Events));
+                OnEventsChanged(newEvents.Concat(oldEvents));
             }
+
+            OnEventsReceived(_events);
         }
 
         /// <summary>
@@ -121,5 +127,14 @@ namespace Tango.Integration.Operation
         {
             EventsResolved?.Invoke(this, events);
         }
+
+        /// <summary>
+        /// Called when the events has been changed
+        /// </summary>
+        /// <param name="events">The events.</param>
+        protected virtual void OnEventsChanged(IEnumerable<MachinesEvent> events)
+        {
+            EventsChanged?.Invoke(this, events);
+        }
     }
 }