Combine window.setTimeout/setInterval with Timer and Timer.repeating. Also

samples/swarm/App.dart

 // Copyright (c) 2011, 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.
 
 part of swarmlib;
 
 /**
  * The base class that should be extended by all HTML applications.
  *
  * It should both be easy to use for users coming over from JavaScript, but
  * also offer a clear notion of OO encapsulation.
  *
  * This class or something similar belongs in the standard DOM library.
  */
 class App {
 
   App() {}
 
   /** Begins executing code in this [App]. */
   void run() {
     // If the script is async, by the time we get here the DOM content may
     // already be loaded, so waiting on the DOMContentLoaded event is a no-op.
     // Guard against this by checking whether the document readiness state has
     // gotten as far as "interactive".  (We believe the transition to
     // "interactive" is when the DOMContentLoaded event fires, but haven't
     // found that specified; if that's not true it leaves a race bug.)
     if (document.readyState == "interactive" ||
         document.readyState == "complete" ||
         document.readyState == "loaded") {
-      // We use setTimeout to insure that onLoad is always called in an async
+      // We use a timer to insure that onLoad is always called in an async
       // manner even if the document is already loaded.
-      window.setTimeout(() => onLoad(), 0);
+      Timer.run(onLoad);
     } else {
       window.onContentLoaded.listen(
         // TODO(sigmund):  Consider eliminating the call to "wrap", for
         // instance, modify event listeners to always wrap, or extend DOM code
         // to intercept the beginning & end of each event loop
         EventBatch.wrap((Event event) => onLoad()));
     }
   }
 
   /**
@@ skipping 59 matching lines @@
       // TODO(jmesserly): Several problems with this:
       //   * How do we authenticate against the server?
       //   * How do we talk to a server other than thump?
       assert(url.startsWith('/'));
       return 'http://thump.googleplex.com$url';
     } else {
       return url;
     }
   }
 }