[FIX] ADF-3: child items of the class should show file property

helpers/form/ElementMapFactory.php

@@ -66,11 +66,6 @@ public function create(core_kernel_classes_Property $property): ?tao_helpers_for
             return null;
         }
 
-        // horrible hack to fix file widget
-        if ($widgetUri === AsyncFile::WIDGET_ID) {
-            $widgetResource = new core_kernel_classes_Resource(GenerisAsyncFile::WIDGET_ID);
-        }
-
         $element = tao_helpers_form_FormFactory::getElementByWidget(
             tao_helpers_Uri::encode($propertyUri),
             $widgetResource

helpers/form/class.Form.php

@@ -1,4 +1,5 @@
 <?php
+
 /**
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -617,6 +618,16 @@ public function hasFileUpload()
 
         return $returnValue;
     }
+
+    public function hasAsyncFileUpload(): bool
+    {
+        foreach ($this->elements as $element) {
+            if ($element instanceof tao_helpers_form_elements_xhtml_AsyncFile) {
+                return true;
+            }
+        }
+        return false;
+    }
 
     /**
      * Enables you to know if the form is valid