Version 1.5.0-dev.4.14

dart/pkg/polymer/lib/src/events.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /// Code from declaration/events.js
 part of polymer;
 
 /// An extension of [polymer_expressions.PolymerExpressions] that adds support
 /// for binding events using `on-eventName` using [PolymerEventBindings].
 // TODO(jmesserly): the JS layering is a bit odd, with polymer-dev implementing
@@ skipping 39 matching lines @@
     }
     return node is ShadowRoot ? node.host : null;
   }
 
   EventListener getEventHandler(controller, target, String method) => (e) {
     if (controller == null || controller is! Polymer) {
       controller = findController(target);
     }
 
     if (controller is Polymer) {
-      var args = [e, e.detail, e.currentTarget];
+      var detail = null;
+      if (e is CustomEvent) {
+        detail = e.detail;
+        // TODO(sigmund): this shouldn't be necessary. See issue 19315.
+        if (detail == null) {
+          detail = new JsObject.fromBrowserObject(e)['detail'];
+        }
+      }
+      var args = [e, detail, e.currentTarget];
       controller.dispatchMethod(controller, method, args);
     } else {
       throw new StateError('controller $controller is not a '
           'Dart polymer-element.');
     }
   };
 
   prepareEventBinding(String path, String name, Node node) {
     if (!_hasEventPrefix(name)) return null;
 
@@ skipping 69 matching lines @@
   return map;
 }();
 
 // Dart note: we need this function because we have additional renames JS does
 // not have. The JS renames are simply case differences, whereas we have ones
 // like doubleclick -> dblclick and stripping the webkit prefix.
 String _eventNameFromType(String eventType) {
   final result = _reverseEventTranslations[eventType];
   return result != null ? result : eventType;
 }