1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ko4j/src/main/java/org/netbeans/html/ko4j/ComponentLoader.java Tue Dec 15 23:19:35 2015 +0100
1.3 @@ -0,0 +1,155 @@
1.4 +/**
1.5 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
1.6 + *
1.7 + * Copyright 2013-2014 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 2013-2014 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.ko4j;
1.47 +
1.48 +import java.io.ByteArrayOutputStream;
1.49 +import java.io.IOException;
1.50 +import java.io.InputStream;
1.51 +import java.lang.reflect.Method;
1.52 +import java.net.URL;
1.53 +import java.util.Enumeration;
1.54 +import java.util.Properties;
1.55 +import net.java.html.BrwsrCtx;
1.56 +import net.java.html.js.JavaScriptBody;
1.57 +import net.java.html.json.Models;
1.58 +
1.59 +final class ComponentLoader {
1.60 + @JavaScriptBody(args = {}, wait4js = false, javacall = true, body =
1.61 + "var myLoader = {\n" +
1.62 + "};\n" +
1.63 + "myLoader.getConfig = function(name, callback) { \n" +
1.64 + " function myClbk(config) {\n" +
1.65 + " console.log('myClbk: ' + config.ko4j + ' ' + config.properties);\n" +
1.66 + " callback(config);\n" +
1.67 + " }\n" +
1.68 + " @org.netbeans.html.ko4j.ComponentLoader::loadConfig(Ljava/lang/String;Ljava/lang/Object;)(name, myClbk);\n" +
1.69 + "}\n" +
1.70 + "myLoader.loadComponent = function(name, componentConfig, callback) {\n" +
1.71 + " console.log('loadComponent: ' + componentConfig.ko4j + ' ' + componentConfig.properties);\n" +
1.72 + " callback(null);\n" +
1.73 + "}\n" +
1.74 + "myLoader.loadTemplate = function(name, templateConfig, callback) {\n" +
1.75 + " console.log('loadTemplate: ' + templateConfig.ko4j + ' ' + templateConfig.properties);\n" +
1.76 + " if (templateConfig !== null) {\n" +
1.77 + " @org.netbeans.html.ko4j.ComponentLoader::loadTemplate(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Object;)(name, templateConfig, callback);\n" +
1.78 + " } else {\n" +
1.79 + " callback(null);\n" +
1.80 + " }\n" +
1.81 + "}\n" +
1.82 + "myLoader.loadViewModel = function(name, config, callback) { \n" +
1.83 + " console.log('loadViewModel ' + name + ' temp: ' + config);\n" +
1.84 + " var f = function(params, info) {\n" +
1.85 + " if (!params) params = null;\n" +
1.86 + " return @org.netbeans.html.ko4j.ComponentLoader::loadViewModel(Ljava/lang/String;Ljava/util/Properties;Ljava/lang/Object;Ljava/lang/Object;)(name, config, params, info);\n" +
1.87 + " };\n" +
1.88 + " callback(f);\n" +
1.89 + "}\n" +
1.90 + "ko.components.loaders.unshift(myLoader);\n"
1.91 + )
1.92 + public static native void initialize();
1.93 +
1.94 + static void loadConfig(String name, Object callback) throws IOException {
1.95 + System.err.println("config for " + name);
1.96 + Enumeration<URL> en = ComponentLoader.class.getClassLoader().getResources("META-INF/html+java/components/" + name);
1.97 + while (en.hasMoreElements()) {
1.98 + URL u = en.nextElement();
1.99 + InputStream is = u.openStream();
1.100 + Properties p = new Properties();
1.101 + p.load(is);
1.102 + is.close();
1.103 + callbackConfig(callback, p, p.getProperty("template"));
1.104 + return;
1.105 + }
1.106 + callbackConfig(callback, null, null);
1.107 + }
1.108 + static void loadTemplate(String name, String template, Object callback) throws IOException {
1.109 + InputStream is = ComponentLoader.class.getClassLoader().getResourceAsStream(template);
1.110 + ByteArrayOutputStream os = new ByteArrayOutputStream();
1.111 + for (;;) {
1.112 + int ch = is.read();
1.113 + if (ch == -1) {
1.114 + break;
1.115 + }
1.116 + os.write(ch);
1.117 + }
1.118 + is.close();
1.119 + String text = os.toString("UTF-8");
1.120 + callbackTemplate(callback, text);
1.121 + }
1.122 +
1.123 + @JavaScriptBody(args = { "callback", "param", "template" }, body =
1.124 + "callback(param ? {\n"
1.125 + + " 'ko4j': true,\n"
1.126 + + " 'viewModel': param,\n"
1.127 + + " 'template': template\n"
1.128 + + " } : null);", wait4js = false)
1.129 + private static native void callbackConfig(Object callback, Properties param, String template);
1.130 +
1.131 + @JavaScriptBody(args = { "callback", "param" }, body = "callback(ko.utils.parseHtmlFragment(param));", wait4js = false)
1.132 + private static native void callbackTemplate(Object callback, String param);
1.133 +
1.134 + static Object loadViewModel(String name, Properties props, Object params, Object config) throws IOException {
1.135 + Object res = null;
1.136 + try {
1.137 + String paramName = props.getProperty("paramName");
1.138 + Class<?> paramType = Class.forName(paramName);
1.139 + String className = props.getProperty("className");
1.140 + Class<?> classType = Class.forName(className);
1.141 + Method m = classType.getMethod(props.getProperty("methodName"), paramType);
1.142 +
1.143 + BrwsrCtx ctx = BrwsrCtx.findDefault(ComponentLoader.class);
1.144 + Object data;
1.145 + if (params == null) {
1.146 + data = paramType.newInstance();
1.147 + } else {
1.148 + data = Models.fromRaw(ctx, paramType, params);
1.149 + }
1.150 + m.setAccessible(true);
1.151 + res = m.invoke(null, data);
1.152 + props.put(res, res);
1.153 + } catch (Exception ex) {
1.154 + throw new IOException(ex);
1.155 + }
1.156 + return Models.toRaw(res);
1.157 + }
1.158 +}