Mock up code completion.

dart/site/try/src/leap.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.
 
 library trydart.main;
 
 import 'dart:html' show
     HttpRequest,
     LinkElement,
-    query,
+    querySelector,
     window;
 
 import 'dart:isolate' show
     ReceivePort,
     SendPort;
 
 import 'compilation.dart' show
     compilerIsolate,
     compilerPort;
 
-import 'editor.dart' show
-    onMutation;
-
 import 'isolate_legacy.dart' show
     spawnDomFunction,
     spawnFunction;
 
 import 'samples.dart' show
     EXAMPLE_HELLO;
 
 import 'ui.dart' show
     buildUI,
+    interaction,
     observer;
 
+import 'user_option.dart' show
+    UserOption;
+
 int count = 0;
 
 const String HAS_NON_DOM_HTTP_REQUEST = 'spawnFunction supports HttpRequest';
 const String NO_NON_DOM_HTTP_REQUEST =
     'spawnFunction does not support HttpRequest';
 
 checkHttpRequest(SendPort replyTo) {
   try {
     new HttpRequest();
     replyTo.send(HAS_NON_DOM_HTTP_REQUEST);
   } catch (e, trace) {
     replyTo.send(NO_NON_DOM_HTTP_REQUEST);
   }
 }
 
 main() {
+  UserOption.storage = window.localStorage;
   if (window.localStorage['currentSource'] == null) {
     window.localStorage['currentSource'] = EXAMPLE_HELLO;
   }
 
   buildUI();
   spawnFunction(checkHttpRequest).first.then((reply) {
     ReceivePort port;
     if (reply == HAS_NON_DOM_HTTP_REQUEST) {
       port = spawnFunction(compilerIsolate);
     } else {
       port = spawnDomFunction(compilerIsolate);
     }
-    LinkElement link = query('link[rel="dart-sdk"]');
+    LinkElement link = querySelector('link[rel="dart-sdk"]');
     String sdk = link.href;
     print('Using Dart SDK: $sdk');
     int messageCount = 0;
     SendPort sendPort;
     port.listen((message) {
       messageCount++;
       switch (messageCount) {
         case 1:
           sendPort = message as SendPort;
           sendPort.send([sdk, port.sendPort]);
           break;
         case 2:
           // Acknowledged Receiving the SDK URI.
           compilerPort = sendPort;
-          onMutation([], observer);
+          interaction.onMutation([], observer);
           break;
         default:
           // TODO(ahe): Close [port]?
           print('Unexpected message received: $message');
           break;
       }
     });
   });
 }