package

lib/src/Core/IEventHandler.dart

@@ -0,0 +1,48 @@
+class IEventHandler
+{
+    Map<String, List<Function>> _events;
+
+    register(String event)
+    {
+        _events[event.toLowerCase()] = [];
+    }
+
+    IEventHandler()
+    {
+        _events = {};
+    }
+
+    emitArgs(String event, List arguments)
+    {
+        event = event.toLowerCase();
+        if (_events.containsKey(event))
+            for(var i = 0; i < _events[event].length; i++)
+                if (Function.apply(_events[event][i], arguments) != null)
+                    return true;
+
+        return false;
+    }
+
+    on(String event, Function callback)
+    {
+        event = event.toLowerCase();
+        // add
+        if (!_events.containsKey(event))
+            register(event);
+
+        _events[event].add(callback);
+        return this;
+    }
+
+    off(event, callback)
+    {
+        event = event.toString();
+        if (_events.containsKey(event))
+        {
+            if (callback != null)
+              _events[event].remove(callback);
+            else
+                this._events[event] = [];
+        }
+    }
+}