Add web socket error codes constants

runtime/bin/websocket.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.
 
 /**
+ * Web socket status codes used when closing a web socket connection.
+ */
+interface WebSocketStatus {
+  static const int NORMAL_CLOSURE = 1000;
+  static const int GOING_AWAY = 1001;
+  static const int PROTOCOL_ERROR = 1002;
+  static const int UNSUPPORTED_DATA = 1003;
+  static const int RESERVED_1004  = 1004;
+  static const int NO_STATUS_RECEIVED = 1005;
+  static const int ABNORMAL_CLOSURE = 1006;
+  static const int INVALID_FRAME_PAYLOAD_DATA = 1007;
+  static const int POLICY_VIOLATION = 1008;
+  static const int MESSAGE_TOO_BIG = 1009;
+  static const int MISSING_MANDATORY_EXTENSION = 1010;
+  static const int INTERNAL_SERVER_ERROR = 1011;
+  static const int RESERVED_1015 = 1015;
+}
+
+/**
  * The web socket protocol is implemented by a HTTP server handler
  * which can be instantiated like this:
  *
  *     WebSocketHandler wsHandler = new WebSocketHandler();
  *
  * and then its onRequest method can be assigned to the HTTP server, e.g.
  *
  *     server.defaultHandler = wsHandler.onRequest;
  *
  * or
@@ skipping 26 matching lines @@
   /**
    * Sets the callback to be called when a message have been
    * received. The type on [message] is either [:String:] or
    * [:List<int>:] depending on whether it is a text or binary
    * message. If the message is empty [message] will be [:null:].
    */
   void set onMessage(void callback(message));
 
   /**
    * Sets the callback to be called when the web socket connection is
-   * closed.
+   * closed. [status] indicate the reason for closing. For network
+   * errors the value of [status] will be
+   * WebSocketStatus.ABNORMAL_CLOSURE].
    */
   void set onClosed(void callback(int status, String reason));
 
   /**
    * Sends a message. The [message] must be a [:String:] a
    * [:List<int>:] or [:null:].
    */
   send(Object message);
 
   /**
@@ skipping 38 matching lines @@
   /**
    * Sets the callback to be called when a message have been
    * received. The type of [message] is either [:String:] or
    * [:List<int>:] depending on whether it is a text or binary
    * message. If the message is empty [message] will be [:null:].
    */
   void set onMessage(void callback(message));
 
   /**
    * Sets the callback to be called when the web socket connection is
-   * closed.
+   * closed. [status] indicate the reason for closing. For network
+   * errors the value of [status] will be
+   * WebSocketStatus.ABNORMAL_CLOSURE].
    */
   void set onClosed(void callback(int status, String reason));
 
   /**
    * Sets the callback to be called when the response object for the
    * opening handshake did not cause a web socket connection
    * upgrade. This will be called in case the response status code is
    * not 101 (Switching Protocols). If this callback is not set the
    * [:onError:] callback will be called if the server did not upgrade
    * the connection.
@@ skipping 144 matching lines @@
    */
   void send(data);
 }
 
 
 class WebSocketException implements Exception {
   const WebSocketException([String this.message = ""]);
   String toString() => "WebSocketException: $message";
   final String message;
 }