1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ko-fx/src/main/java/org/netbeans/html/kofx/LoadWS.java Mon Dec 16 16:59:43 2013 +0100
1.3 @@ -0,0 +1,149 @@
1.4 +/**
1.5 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
1.6 + *
1.7 + * Copyright 1997-2010 Oracle and/or its affiliates. All rights reserved.
1.8 + *
1.9 + * Oracle and Java are registered trademarks of Oracle and/or its affiliates.
1.10 + * Other names may be trademarks of their respective owners.
1.11 + *
1.12 + * The contents of this file are subject to the terms of either the GNU
1.13 + * General Public License Version 2 only ("GPL") or the Common
1.14 + * Development and Distribution License("CDDL") (collectively, the
1.15 + * "License"). You may not use this file except in compliance with the
1.16 + * License. You can obtain a copy of the License at
1.17 + * http://www.netbeans.org/cddl-gplv2.html
1.18 + * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
1.19 + * specific language governing permissions and limitations under the
1.20 + * License. When distributing the software, include this License Header
1.21 + * Notice in each file and include the License file at
1.22 + * nbbuild/licenses/CDDL-GPL-2-CP. Oracle designates this
1.23 + * particular file as subject to the "Classpath" exception as provided
1.24 + * by Oracle in the GPL Version 2 section of the License file that
1.25 + * accompanied this code. If applicable, add the following below the
1.26 + * License Header, with the fields enclosed by brackets [] replaced by
1.27 + * your own identifying information:
1.28 + * "Portions Copyrighted [year] [name of copyright owner]"
1.29 + *
1.30 + * Contributor(s):
1.31 + *
1.32 + * The Original Software is NetBeans. The Initial Developer of the Original
1.33 + * Software is Oracle. Portions Copyright 2013-2013 Oracle. All Rights Reserved.
1.34 + *
1.35 + * If you wish your version of this file to be governed by only the CDDL
1.36 + * or only the GPL Version 2, indicate your decision by adding
1.37 + * "[Contributor] elects to include this software in this distribution
1.38 + * under the [CDDL or GPL Version 2] license." If you do not indicate a
1.39 + * single choice of license, a recipient has the option to distribute
1.40 + * your version of this file under either the CDDL, the GPL Version 2 or
1.41 + * to extend the choice of license to its licensees as provided above.
1.42 + * However, if you add GPL Version 2 code and therefore, elected the GPL
1.43 + * Version 2 license, then the option applies only if the new code is
1.44 + * made subject to such option by the copyright holder.
1.45 + */
1.46 +package org.netbeans.html.kofx;
1.47 +
1.48 +import net.java.html.js.JavaScriptBody;
1.49 +import org.apidesign.html.json.spi.JSONCall;
1.50 +import org.json.JSONArray;
1.51 +import org.json.JSONException;
1.52 +import org.json.JSONObject;
1.53 +import org.json.JSONTokener;
1.54 +
1.55 +/** Communication with WebSockets for WebView 1.8.
1.56 + *
1.57 + * @author Jaroslav Tulach <jtulach@netbeans.org>
1.58 + */
1.59 +final class LoadWS {
1.60 + private static final boolean SUPPORTED = isWebSocket();
1.61 + private final Object ws;
1.62 + private final JSONCall call;
1.63 +
1.64 + LoadWS(JSONCall first, String url) {
1.65 + call = first;
1.66 + ws = initWebSocket(this, url);
1.67 + if (ws == null) {
1.68 + first.notifyError(new IllegalArgumentException("Wrong URL: " + url));
1.69 + }
1.70 + }
1.71 +
1.72 + static boolean isSupported() {
1.73 + return SUPPORTED;
1.74 + }
1.75 +
1.76 + void send(JSONCall call) {
1.77 + push(call);
1.78 + }
1.79 +
1.80 + private synchronized void push(JSONCall call) {
1.81 + send(ws, call.getMessage());
1.82 + }
1.83 +
1.84 + void onOpen(Object ev) {
1.85 + if (!call.isDoOutput()) {
1.86 + call.notifySuccess(null);
1.87 + }
1.88 + }
1.89 +
1.90 + void onMessage(Object ev, String data) {
1.91 + Object json;
1.92 + try {
1.93 + data = data.trim();
1.94 +
1.95 + JSONTokener tok = new JSONTokener(data);
1.96 + Object obj;
1.97 + obj = data.startsWith("[") ? new JSONArray(tok) : new JSONObject(tok);
1.98 + json = LoadJSON.convertToArray(obj);
1.99 + } catch (JSONException ex) {
1.100 + json = data;
1.101 + }
1.102 + call.notifySuccess(json);
1.103 + }
1.104 +
1.105 + void onError(Object ev) {
1.106 + call.notifyError(new Exception(ev.toString()));
1.107 + }
1.108 +
1.109 + void onClose(boolean wasClean, int code, String reason) {
1.110 + call.notifyError(null);
1.111 + }
1.112 +
1.113 + @JavaScriptBody(args = {}, body = "if (window.WebSocket) return true; else return false;")
1.114 + private static boolean isWebSocket() {
1.115 + return false;
1.116 + }
1.117 +
1.118 + @JavaScriptBody(args = { "back", "url" }, javacall = true, body = ""
1.119 + + "if (window.WebSocket) {"
1.120 + + " try {"
1.121 + + " var ws = new window.WebSocket(url);"
1.122 + + " ws.onopen = function(ev) { back.@org.netbeans.html.kofx.LoadWS::onOpen(Ljava/lang/Object;)(ev); };"
1.123 + + " ws.onmessage = function(ev) { back.@org.netbeans.html.kofx.LoadWS::onMessage(Ljava/lang/Object;Ljava/lang/String;)(ev, ev.data); };"
1.124 + + " ws.onerror = function(ev) { back.@org.netbeans.html.kofx.LoadWS::onError(Ljava/lang/Object;)(ev); };"
1.125 + + " ws.onclose = function(ev) { back.@org.netbeans.html.kofx.LoadWS::onClose(ZILjava/lang/String;)(ev.wasClean, ev.code, ev.reason); };"
1.126 + + " return ws;"
1.127 + + " } catch (ex) {"
1.128 + + " return null;"
1.129 + + " }"
1.130 + + "} else {"
1.131 + + " return null;"
1.132 + + "}"
1.133 + )
1.134 + private static Object initWebSocket(Object back, String url) {
1.135 + return null;
1.136 + }
1.137 +
1.138 +
1.139 + @JavaScriptBody(args = { "ws", "msg" }, body = ""
1.140 + + "ws.send(msg);"
1.141 + )
1.142 + private void send(Object ws, String msg) {
1.143 + }
1.144 +
1.145 + @JavaScriptBody(args = { "ws" }, body = "ws.close();")
1.146 + private static void close(Object ws) {
1.147 + }
1.148 +
1.149 + void close() {
1.150 + close(ws);
1.151 + }
1.152 +}