1 files changed, 8 insertions, 0 deletions
diff --git a/ext/mixed/js/core.js b/ext/mixed/js/core.js
index c5c6fef2..8b044a67 100644
--- a/ext/mixed/js/core.js
+++ b/ext/mixed/js/core.js
@@ -341,6 +341,14 @@ class EventListenerCollection {
         return this._eventListeners.length;
     }
 
+    addGeneric(type, object, ...args) {
+        switch (type) {
+            case 'addEventListener': return this.addEventListener(object, ...args);
+            case 'addListener': return this.addListener(object, ...args);
+            case 'on': return this.on(object, ...args);
+        }
+    }
+
     addEventListener(object, ...args) {
         object.addEventListener(...args);
         this._eventListeners.push(['removeEventListener', object, ...args]);