Remove spawnDomFunction from dart:html

samples/isolate_html/isolate_sample.dart

-// Copyright (c) 2012, 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 isolate_sample;
-
-import 'dart:html';
-import 'dart:isolate';
-
-/*
- * This is a simple sample application showing how to create two isolates
- * and send messages to them, and receive replies back.
- */
-
-/**
- * These are the messages we are going to send to the isolates that we create.
- */
-class MessageId {
-  static const INIT = 'init';
-  static const GREETING = 'greeting';
-}
-
-/**
- * Create a new isolate with a given name.  (In this sample app
- * we only have two isolates, and they are named 'A' and 'B').
- * Note, isolates aren't normally named, but it's useful to give
- * them names in this app so we can show which isolate is doing
- * what.
- */
-Future<SendPort> createIsolate(String name) {
-  return spawnDomFunction(isolateMain).then((sendPort) {
-    var message = {
-      'id' : MessageId.INIT,
-      'args' : [name, port.toSendPort()]
-    };
-    sendPort.send(message, null);
-    return sendPort;
-  });
-}
-
-// TODO(mattsh) get this off the System object once it's available
-// see http://dartbug.com/3357
-bool isVm() => 1234567890123456789 % 2 > 0;
-
-/**
- * This function will run in a separate isolate, which shares almost
- * no state with the main isolate. They will both run in the main
- * UI thread, though, so that they can share DOM state.
- */
-void isolateMain() {
-  Element div;
-  String isolateName;
-  SendPort chirpPort;
-
-  void init(String isolateName_, SendPort chirpPort_) {
-    isolateName = isolateName_;
-    chirpPort = chirpPort_;
-    div = new DivElement()
-      ..classes = ['isolate', 'isolate${isolateName}']
-      ..innerHtml = query('#isolateTemplate').innerHtml
-      ..query('.isolateName').text = isolateName
-      ..query('.chirpButton').onClick.listen((event) {
-          chirpPort.send(
-            'this is a chirp message from isolate $isolateName', null);
-        });
-    query('#isolateParent').nodes.add(div);
-  }
-
-  /**
-   * Display the message we received, and send back a simple reply (unless
-   * the user has unchecked the reply checkbox).
-   */
-  void greeting(String message, SendPort replyTo) {
-    div.query('.messageBox').innerHtml =
-      'received message: <span class="messageText">"${message}"</span>';
-    if (div.query('input.replyCheckbox').checked) {
-      InputElement element = div.query('.delayTextbox');
-      int millis = int.parse(element.value);
-      new Timer(new Duration(milliseconds: millis), () {
-        replyTo.send('this is a reply from isolate "${isolateName}"', null);
-      });
-    }
-  }
-
-  port.receive((message, SendPort replyTo) {
-    switch(message['id']) {
-      case MessageId.INIT:
-        init(message['args'][0], message['args'][1]);
-      break;
-      case MessageId.GREETING:
-        greeting(message['args'][0], replyTo);
-      break;
-    }
-  });
-}
-
-main() {
-  //Map from isolate name to the port used to send messages to that isolate.
-  final Map<String, SendPort> ports = new Map();
-
-  // Do initialization and set up event handlers.
-  query('#appTitle').text = 'Hello, isolates.';
-  query('#vmStatus').text = '${isVm()}';
-
-  var replyElement = query('.isolateMain .replyText');
-
-  createIsolate('A').then((sendPortA) {
-    ports['A'] = sendPortA;
-    createIsolate('B').then((sendPortB) {
-      ports['B'] = sendPortB;
-
-      for (var element in queryAll('.sendButton')) {
-        element.onClick.listen((Event e) {
-          replyElement.text = 'waiting for reply...';
-
-          var isolateName =
-              (e.currentTarget as Element).attributes['data-isolate-name'];
-          var greeting = query('input#greetingText').value;
-          var message = {'id': MessageId.GREETING, 'args': [greeting]};
-          ports[isolateName].call(message).then((var msg) {
-            replyElement.text = msg;
-          });
-        });
-      }
-
-      port.receive((var message, SendPort replyTo) {
-        replyElement.text = message;
-      });
-    });
-  });
-}