launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Console.java
branchlauncher
changeset 323 d41cfd77842d
child 332 6949044415df
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Console.java	Sat Dec 15 16:25:28 2012 +0100
     1.3 @@ -0,0 +1,65 @@
     1.4 +/**
     1.5 + * Back 2 Browser Bytecode Translator
     1.6 + * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
     1.7 + *
     1.8 + * This program is free software: you can redistribute it and/or modify
     1.9 + * it under the terms of the GNU General Public License as published by
    1.10 + * the Free Software Foundation, version 2 of the License.
    1.11 + *
    1.12 + * This program is distributed in the hope that it will be useful,
    1.13 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.14 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.15 + * GNU General Public License for more details.
    1.16 + *
    1.17 + * You should have received a copy of the GNU General Public License
    1.18 + * along with this program. Look for COPYING file in the top folder.
    1.19 + * If not, see http://opensource.org/licenses/GPL-2.0.
    1.20 + */
    1.21 +package org.apidesign.bck2brwsr.launcher;
    1.22 +
    1.23 +import java.lang.reflect.Method;
    1.24 +import org.apidesign.bck2brwsr.core.JavaScriptBody;
    1.25 +
    1.26 +/**
    1.27 + *
    1.28 + * @author Jaroslav Tulach <jtulach@netbeans.org>
    1.29 + */
    1.30 +public class Console {
    1.31 +    public static String welcome() {
    1.32 +        final String msg = "Hello from Bck2Brwsr!";
    1.33 +        alert(msg);
    1.34 +        return msg;
    1.35 +    }
    1.36 +    
    1.37 +    @JavaScriptBody(args = "msg", body = "alert(msg);")
    1.38 +    private static native void alert(String msg);
    1.39 +    
    1.40 +    @JavaScriptBody(args = {"id", "attr"}, body = 
    1.41 +        "return window.document.getElementById(id)[attr].toString();")
    1.42 +    private static native Object getAttr(String id, String attr);
    1.43 +
    1.44 +    @JavaScriptBody(args = {"id", "attr", "value"}, body = 
    1.45 +        "window.document.getElementById(id)[attr] = value;")
    1.46 +    private static native void setAttr(String id, String attr, Object value);
    1.47 +    
    1.48 +    public static void execute() throws Exception {
    1.49 +        String clazz = (String) getAttr("clazz", "value");
    1.50 +        String method = (String) getAttr("method", "value");
    1.51 +
    1.52 +        Method found = null;
    1.53 +        Class<?> c = Class.forName(clazz);
    1.54 +        for (Method m : c.getMethods()) {
    1.55 +            if (m.getName().equals(method)) {
    1.56 +                found = m;
    1.57 +            }
    1.58 +        }
    1.59 +        Object res;
    1.60 +        if (found != null) {
    1.61 +            res = found.invoke(null);
    1.62 +        } else {
    1.63 +            res = "Can't find method " + method + " in " + clazz;
    1.64 +        }
    1.65 +        
    1.66 +        setAttr("result", "value", res);
    1.67 +    }
    1.68 +}