buttonview fix

haxework/gui/ButtonView.hx

@@ -42,8 +42,10 @@ class ButtonView extends LabelView {
   }
 
   private function onMouseClick(event:MouseEvent):Void {
+    #if js if (downed) { #end
       event.stopImmediatePropagation();
       if (!disabled) dispatcher.dispatch(pressCaller);
+    #if js } #end
   }
 
   private function onMouseOver(event:MouseEvent):Void {