Wrapping leaf nodes in non polymer elements

runtime/observatory/lib/src/elements/isolate_ref.dart

Index: runtime/observatory/lib/src/elements/isolate_ref.dart
diff --git a/runtime/observatory/lib/src/elements/isolate_ref.dart b/runtime/observatory/lib/src/elements/isolate_ref.dart
index 730a4383800b11a6be12506e3f2a086943cafa42..cf8327f6c8167cf1279f240ed8afeed718d2406a 100644
--- a/runtime/observatory/lib/src/elements/isolate_ref.dart
+++ b/runtime/observatory/lib/src/elements/isolate_ref.dart
@@ -4,10 +4,58 @@
 
 library isolate_ref_element;
 
-import 'package:polymer/polymer.dart';
-import 'service_ref.dart';
+import 'dart:html';
+import 'dart:async';
+import 'package:observatory/repositories.dart'
+  show IsolateRef, IsolateUpdateEvent;
+import 'package:observatory/src/elements/helpers/tag.dart';
+
+class IsolateRefElement extends HtmlElement {
+  static const tag = const Tag<IsolateRefElement>('isolate-ref-wrapped');
+
+  Stream<IsolateUpdateEvent> _updates;
+  StreamSubscription _updatesSubscription;
+  IsolateRef _isolate;
+
+  IsolateRef get isolate => _isolate;
+
+  factory IsolateRefElement(IsolateRef isolate,
+    Stream<IsolateUpdateEvent> updates) {
+    assert(isolate != null);
+    assert(updates != null);
+    IsolateRefElement e = document.createElement(tag.name);
+    e._isolate = isolate;
+    e._updates = updates;
+    return e;
+  }
 
-@CustomTag('isolate-ref')
-class IsolateRefElement extends ServiceRefElement {
   IsolateRefElement.created() : super.created();
+
+  @override
+  void attached() {
+    super.attached();
+    assert(_isolate != null);
+    assert(_updates != null);
+    render();
+    _updatesSubscription = _updates
+      .where((IsolateUpdateEvent e) => e.isolate.id == isolate.id)
+      .listen((IsolateUpdateEvent e) { _isolate = e.isolate; render(); });
+  }
+
+  @override
+  void detached() {
+    super.detached();
+    assert(_updatesSubscription != null);
+    _updatesSubscription.cancel();
+    _updatesSubscription = null;
+  }
+
+  void render() {
+    children = [
+      new AnchorElement(href:
+        '#/inspect?isolateId=${Uri.encodeComponent(isolate.id)}')
+        ..text = 'Isolate ${isolate.number} (${isolate.name})'
+        ..classes = ['isolate-ref']
+    ];
+  }
 }