jaroslav@1033: /**
jaroslav@1033:  * Back 2 Browser Bytecode Translator
jaroslav@1033:  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jaroslav@1033:  *
jaroslav@1033:  * This program is free software: you can redistribute it and/or modify
jaroslav@1033:  * it under the terms of the GNU General Public License as published by
jaroslav@1033:  * the Free Software Foundation, version 2 of the License.
jaroslav@1033:  *
jaroslav@1033:  * This program is distributed in the hope that it will be useful,
jaroslav@1033:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@1033:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jaroslav@1033:  * GNU General Public License for more details.
jaroslav@1033:  *
jaroslav@1033:  * You should have received a copy of the GNU General Public License
jaroslav@1033:  * along with this program. Look for COPYING file in the top folder.
jaroslav@1033:  * If not, see http://opensource.org/licenses/GPL-2.0.
jaroslav@1033:  */
jaroslav@1033: package org.apidesign.bck2brwsr.launcher;
jaroslav@1033: 
jaroslav@1033: import java.io.IOException;
jaroslav@1033: import java.io.InputStream;
jaroslav@1033: import org.apidesign.vm4brwsr.Bck2Brwsr;
jaroslav@1033: 
jaroslav@1033: /**
jaroslav@1033:  * Lightweight server to launch Bck2Brwsr applications and tests.
jaroslav@1033:  * Supports execution in native browser as well as Java's internal 
jaroslav@1033:  * execution engine.
jaroslav@1033:  */
jaroslav@1088: final class Bck2BrwsrLauncher extends BaseHTTPLauncher {
jaroslav@1033:     
jaroslav@1033:     public Bck2BrwsrLauncher(String cmd) {
jaroslav@1088:         super(cmd);
jaroslav@1033:     }
jaroslav@1033:     
jaroslav@1033:     @Override
jaroslav@1088:     String harnessResource() {
jaroslav@1088:         return "org/apidesign/bck2brwsr/launcher/harness.xhtml";
jaroslav@1033:     }
jaroslav@1033:     
jaroslav@1033:     @Override
jaroslav@1088:     void generateBck2BrwsrJS(StringBuilder sb, final Res loader) throws IOException {
jaroslav@1088:         class R implements Bck2Brwsr.Resources {
jaroslav@1088:             @Override
jaroslav@1088:             public InputStream get(String resource) throws IOException {
jaroslav@1088:                 return loader.get(resource);
jaroslav@1033:             }
jaroslav@1033:         }
jaroslav@1033: 
jaroslav@1088:         Bck2Brwsr.generate(sb, new R());
jaroslav@1088:         sb.append(
jaroslav@1088:               "(function WrapperVM(global) {"
jaroslav@1088:             + "  function ldCls(res) {\n"
jaroslav@1088:             + "    var request = new XMLHttpRequest();\n"
jaroslav@1295:             + "    console.log('Loading ' + res);\n"
jaroslav@1088:             + "    request.open('GET', '/classes/' + res, false);\n"
jaroslav@1088:             + "    request.send();\n"
jaroslav@1295:             + "    if (request.status !== 200) {\n"
jaroslav@1295:             + "      console.warn('  cannot load ' + res);\n"
jaroslav@1295:             + "      return null;\n"
jaroslav@1295:             + "    }\n"
jaroslav@1088:             + "    var arr = eval('(' + request.responseText + ')');\n"
jaroslav@1088:             + "    return arr;\n"
jaroslav@1088:             + "  }\n"
jaroslav@1088:             + "  var prevvm = global.bck2brwsr;\n"
jaroslav@1088:             + "  global.bck2brwsr = function() {\n"
jaroslav@1088:             + "    var args = Array.prototype.slice.apply(arguments);\n"
jaroslav@1088:             + "    args.unshift(ldCls);\n"
jaroslav@1088:             + "    return prevvm.apply(null, args);\n"
jaroslav@1088:             + "  };\n"
jaroslav@1088:             + "})(this);\n"
jaroslav@1088:         );
jaroslav@1033:     }
jaroslav@1033: 
jaroslav@1033: }