1.4.5

lib/src/Core/AsyncBag.dart

@@ -23,7 +23,14 @@ class AsyncBag<T> extends AsyncReply<List<T>> {
     if (_sealedBag) return;
     _sealedBag = true;
 
-    if (_replies.length == 0) trigger(<T>[]);
+    if (_replies.length == 0) {
+      if (arrayType != null) {
+        var ar = Warehouse.createArray(arrayType as Type);
+        trigger(ar as List<T>);
+      } else {
+        trigger(<T>[]);
+      }
+    }
 
     var results = List<T?>.filled(_replies.length, null);
 
@@ -31,21 +38,23 @@ class AsyncBag<T> extends AsyncReply<List<T>> {
       var k = _replies[i];
       var index = i;
 
-      k..then((r) {
-        results[index] = r;
-        _count++;
-        if (_count == _replies.length) {
-          if (arrayType != null) {
-            var ar = Warehouse.createArray(arrayType as Type);
-            results.forEach(ar.add);
-            trigger(ar as List<T>);
-          } else {
-            trigger(results.cast<T>());
+      k
+        ..then((r) {
+          results[index] = r;
+          _count++;
+          if (_count == _replies.length) {
+            if (arrayType != null) {
+              var ar = Warehouse.createArray(arrayType as Type);
+              results.forEach(ar.add);
+              trigger(ar as List<T>);
+            } else {
+              trigger(results.cast<T>());
+            }
           }
-        }
-      })..error((ex) {
-        triggerError(ex);
-      });
+        })
+        ..error((ex) {
+          triggerError(ex);
+        });
     }
   }
 

lib/src/Core/IEventHandler.dart

@@ -1,4 +1,8 @@
+import 'dart:async';
+
 class IEventHandler {
+  final _propertyModifiedController = StreamController<String>();
+
   Map<String, List<Function>> _events = {};
 
   register(String event) {
@@ -7,6 +11,12 @@ class IEventHandler {
 
   IEventHandler() {}
 
+  Stream get properyModified => _propertyModifiedController.stream;
+
+  emitProperty(String name) {
+    _propertyModifiedController.add(name);
+  }
+
   emitArgs(String event, List arguments) {
     //event = event.toLowerCase();
 
@@ -21,13 +31,13 @@ class IEventHandler {
 
   on(String event, Function callback) {
     event = event.toLowerCase();
-    if (_events.containsKey(event)) register(event);
+    if (!_events.containsKey(event)) register(event);
     _events[event]?.add(callback);
     return this;
   }
 
-  off(event, callback) {
-    event = event.toString();
+  off(String event, callback) {
+    event = event.toLowerCase();
     if (_events.containsKey(event)) {
       if (callback != null)
         _events[event]?.remove(callback);