com.github.abelaska.gwt.websockets.client.WebSocket.java Source code

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Here is the source code for com.github.abelaska.gwt.websockets.client.WebSocket.java

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/*
 * Copyright 2010 Richard Zschech.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.github.abelaska.gwt.websockets.client;

import com.google.gwt.core.client.JavaScriptObject;

public class WebSocket extends JavaScriptObject {

    public static final int CONNECTING = 0;
    public static final int OPEN = 1;
    public static final int CLOSING = 2;
    public static final int CLOSED = 3;

    /**
     * Creates an WebSocket object.
     * 
     * @return the created object
     */
    public static native WebSocket create(String url) /*-{
                                                      return new $wnd.WebSocket(url);
                                                      }-*/;

    public static native WebSocket create(String url, String protocol) /*-{
                                                                       return new $wnd.WebSocket(url, protocol);
                                                                       }-*/;

    protected WebSocket() {
    }

    public final native int getReadyState() /*-{
                                            return this.readyState;
                                            }-*/;

    public final native int getBufferedAmount() /*-{
                                                return this.bufferedAmount;
                                                }-*/;

    public final native void send(String data) /*-{
                                               this.send(data);
                                               }-*/;

    public final native void close() /*-{
                                     this.close();
                                     }-*/;

    public final native void setHandler(WebSocketHandler handler) /*-{
                                                                  // The 'this' context is always supposed to point to the websocket object in the
                                                                  // onreadystatechange handler, but we reference it via closure to be extra sure.
                                                                  var _this = this;
                                                                  this.onopen = $entry(function() {
                                                                  handler.@com.github.abelaska.gwt.websockets.client.WebSocketHandler::onOpen(Lcom/github/abelaska/gwt/websockets/client/WebSocket;)(_this);
                                                                  });
                                                                  this.onclose = $entry(function() {
                                                                  handler.@com.github.abelaska.gwt.websockets.client.WebSocketHandler::onClose(Lcom/github/abelaska/gwt/websockets/client/WebSocket;)(_this);
                                                                  });
                                                                  this.onerror = $entry(function() {
                                                                  handler.@com.github.abelaska.gwt.websockets.client.WebSocketHandler::onError(Lcom/github/abelaska/gwt/websockets/client/WebSocket;)(_this);
                                                                  });
                                                                  this.onmessage = $entry(function(event) {
                                                                  handler.@com.github.abelaska.gwt.websockets.client.WebSocketHandler::onMessage(Lcom/github/abelaska/gwt/websockets/client/WebSocket;Lcom/github/abelaska/gwt/websockets/client/MessageEvent;)(_this, event);
                                                                  });
                                                                  }-*/;
}