replace event.HasListeners() with property

2 files changed, 8 insertions, 6 deletions

diff --git a/src/SMAPI/Framework/Events/IManagedEvent.cs b/src/SMAPI/Framework/Events/IManagedEvent.cs
index 0ae8c55a..55994c04 100644
--- a/src/SMAPI/Framework/Events/IManagedEvent.cs
+++ b/src/SMAPI/Framework/Events/IManagedEvent.cs
@@ -8,5 +8,8 @@ namespace StardewModdingAPI.Framework.Events
         *********/
         /// <summary>A human-readable name for the event.</summary>
         string EventName { get; }
+
+        /// <summary>Whether any handlers are listening to the event.</summary>
+        bool HasListeners { get; }
     }
 }
diff --git a/src/SMAPI/Framework/Events/ManagedEvent.cs b/src/SMAPI/Framework/Events/ManagedEvent.cs
index a34106ce..8a3ca839 100644
--- a/src/SMAPI/Framework/Events/ManagedEvent.cs
+++ b/src/SMAPI/Framework/Events/ManagedEvent.cs
@@ -39,6 +39,9 @@ namespace StardewModdingAPI.Framework.Events
         /// <inheritdoc />
         public string EventName { get; }
 
+        /// <inheritdoc />
+        public bool HasListeners { get; private set; }
+
 
         /*********
         ** Public methods
@@ -52,12 +55,6 @@ namespace StardewModdingAPI.Framework.Events
             this.ModRegistry = modRegistry;
         }
 
-        /// <summary>Get whether anything is listening to the event.</summary>
-        public bool HasListeners()
-        {
-            return this.Handlers.Count > 0;
-        }
-
         /// <summary>Add an event handler.</summary>
         /// <param name="handler">The event handler.</param>
         /// <param name="mod">The mod which added the event handler.</param>
@@ -70,6 +67,7 @@ namespace StardewModdingAPI.Framework.Events
 
                 this.Handlers.Add(managedHandler);
                 this.CachedHandlers = null;
+                this.HasListeners = true;
                 this.HasPriorities |= priority != EventPriority.Normal;
             }
         }
@@ -88,6 +86,7 @@ namespace StardewModdingAPI.Framework.Events
 
                     this.Handlers.RemoveAt(i);
                     this.CachedHandlers = null;
+                    this.HasListeners = this.Handlers.Count != 0;
                     this.HasRemovedHandlers = true;
                     break;
                 }