jaroslav@1041
|
1 |
/**
|
jaroslav@1041
|
2 |
* Back 2 Browser Bytecode Translator
|
jaroslav@1041
|
3 |
* Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
|
jaroslav@1041
|
4 |
*
|
jaroslav@1041
|
5 |
* This program is free software: you can redistribute it and/or modify
|
jaroslav@1041
|
6 |
* it under the terms of the GNU General Public License as published by
|
jaroslav@1041
|
7 |
* the Free Software Foundation, version 2 of the License.
|
jaroslav@1041
|
8 |
*
|
jaroslav@1041
|
9 |
* This program is distributed in the hope that it will be useful,
|
jaroslav@1041
|
10 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
jaroslav@1041
|
11 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
jaroslav@1041
|
12 |
* GNU General Public License for more details.
|
jaroslav@1041
|
13 |
*
|
jaroslav@1041
|
14 |
* You should have received a copy of the GNU General Public License
|
jaroslav@1041
|
15 |
* along with this program. Look for COPYING file in the top folder.
|
jaroslav@1041
|
16 |
* If not, see http://opensource.org/licenses/GPL-2.0.
|
jaroslav@1041
|
17 |
*/
|
jaroslav@1041
|
18 |
package org.apidesign.bck2brwsr.launcher.fximpl;
|
jaroslav@1041
|
19 |
|
jaroslav@1174
|
20 |
import java.net.URL;
|
jaroslav@1175
|
21 |
import java.util.ArrayList;
|
jaroslav@1175
|
22 |
import java.util.Collections;
|
jaroslav@1175
|
23 |
import java.util.Enumeration;
|
jaroslav@1175
|
24 |
import java.util.List;
|
jaroslav@1041
|
25 |
import java.util.TooManyListenersException;
|
jaroslav@1041
|
26 |
import javafx.beans.value.ChangeListener;
|
jaroslav@1174
|
27 |
import javafx.scene.web.WebEngine;
|
jaroslav@1174
|
28 |
import netscape.javascript.JSObject;
|
jaroslav@1041
|
29 |
|
jaroslav@1041
|
30 |
/**
|
jaroslav@1041
|
31 |
*
|
jaroslav@1041
|
32 |
* @author Jaroslav Tulach <jtulach@netbeans.org>
|
jaroslav@1041
|
33 |
*/
|
jaroslav@1041
|
34 |
public final class JVMBridge {
|
jaroslav@1174
|
35 |
private final WebEngine engine;
|
jaroslav@1174
|
36 |
private final WebClassLoader cl;
|
jaroslav@1174
|
37 |
|
jaroslav@1041
|
38 |
private static ClassLoader[] ldrs;
|
jaroslav@1041
|
39 |
private static ChangeListener<Void> onBck2BrwsrLoad;
|
jaroslav@1174
|
40 |
|
jaroslav@1174
|
41 |
JVMBridge(WebEngine eng) {
|
jaroslav@1174
|
42 |
this.engine = eng;
|
jaroslav@1179
|
43 |
this.cl = new WebClassLoader(JVMBridge.class.getClassLoader().getParent());
|
jaroslav@1174
|
44 |
}
|
jaroslav@1041
|
45 |
|
jaroslav@1041
|
46 |
public static void registerClassLoaders(ClassLoader[] loaders) {
|
jaroslav@1041
|
47 |
ldrs = loaders.clone();
|
jaroslav@1041
|
48 |
}
|
jaroslav@1041
|
49 |
|
jaroslav@1041
|
50 |
public static void addBck2BrwsrLoad(ChangeListener<Void> l) throws TooManyListenersException {
|
jaroslav@1041
|
51 |
if (onBck2BrwsrLoad != null) {
|
jaroslav@1041
|
52 |
throw new TooManyListenersException();
|
jaroslav@1041
|
53 |
}
|
jaroslav@1041
|
54 |
onBck2BrwsrLoad = l;
|
jaroslav@1041
|
55 |
}
|
jaroslav@1041
|
56 |
|
jaroslav@1041
|
57 |
public static void onBck2BrwsrLoad() {
|
jaroslav@1041
|
58 |
ChangeListener<Void> l = onBck2BrwsrLoad;
|
jaroslav@1041
|
59 |
if (l != null) {
|
jaroslav@1041
|
60 |
l.changed(null, null, null);
|
jaroslav@1041
|
61 |
}
|
jaroslav@1041
|
62 |
}
|
jaroslav@1041
|
63 |
|
jaroslav@1041
|
64 |
public Class<?> loadClass(String name) throws ClassNotFoundException {
|
jaroslav@1174
|
65 |
return Class.forName(name, true, cl);
|
jaroslav@1174
|
66 |
}
|
jaroslav@1174
|
67 |
|
jaroslav@1174
|
68 |
private final class WebClassLoader extends JsClassLoader {
|
jaroslav@1174
|
69 |
public WebClassLoader(ClassLoader parent) {
|
jaroslav@1174
|
70 |
super(parent);
|
jaroslav@1174
|
71 |
}
|
jaroslav@1174
|
72 |
|
jaroslav@1174
|
73 |
@Override
|
jaroslav@1174
|
74 |
protected URL findResource(String name) {
|
jaroslav@1174
|
75 |
if (ldrs != null) for (ClassLoader l : ldrs) {
|
jaroslav@1174
|
76 |
URL u = l.getResource(name);
|
jaroslav@1174
|
77 |
if (u != null) {
|
jaroslav@1174
|
78 |
return u;
|
jaroslav@1174
|
79 |
}
|
jaroslav@1041
|
80 |
}
|
jaroslav@1174
|
81 |
return null;
|
jaroslav@1041
|
82 |
}
|
jaroslav@1175
|
83 |
|
jaroslav@1175
|
84 |
@Override
|
jaroslav@1175
|
85 |
protected Enumeration<URL> findResources(String name) {
|
jaroslav@1175
|
86 |
List<URL> arr = new ArrayList<URL>();
|
jaroslav@1175
|
87 |
if (ldrs != null) {
|
jaroslav@1175
|
88 |
for (ClassLoader l : ldrs) {
|
jaroslav@1175
|
89 |
URL u = l.getResource(name);
|
jaroslav@1175
|
90 |
if (u != null) {
|
jaroslav@1175
|
91 |
arr.add(u);
|
jaroslav@1175
|
92 |
}
|
jaroslav@1175
|
93 |
}
|
jaroslav@1175
|
94 |
}
|
jaroslav@1175
|
95 |
return Collections.enumeration(arr);
|
jaroslav@1175
|
96 |
}
|
jaroslav@1174
|
97 |
|
jaroslav@1174
|
98 |
@Override
|
jaroslav@1174
|
99 |
protected Fn defineFn(String code, String... names) {
|
jaroslav@1174
|
100 |
StringBuilder sb = new StringBuilder();
|
jaroslav@1174
|
101 |
sb.append("(function() {");
|
jaroslav@1174
|
102 |
sb.append(" var x = {};");
|
jaroslav@1174
|
103 |
sb.append(" x.fn = function(");
|
jaroslav@1174
|
104 |
String sep = "";
|
jaroslav@1174
|
105 |
for (String n : names) {
|
jaroslav@1174
|
106 |
sb.append(sep).append(n);
|
jaroslav@1174
|
107 |
sep = ",";
|
jaroslav@1174
|
108 |
}
|
jaroslav@1174
|
109 |
sb.append(") {\n");
|
jaroslav@1174
|
110 |
sb.append(code);
|
jaroslav@1174
|
111 |
sb.append("};");
|
jaroslav@1174
|
112 |
sb.append("return x;");
|
jaroslav@1174
|
113 |
sb.append("})()");
|
jaroslav@1174
|
114 |
|
jaroslav@1174
|
115 |
JSObject x = (JSObject) engine.executeScript(sb.toString());
|
jaroslav@1174
|
116 |
return new JSFn(x);
|
jaroslav@1041
|
117 |
}
|
jaroslav@1174
|
118 |
}
|
jaroslav@1174
|
119 |
|
jaroslav@1174
|
120 |
private static final class JSFn extends Fn {
|
jaroslav@1174
|
121 |
private final JSObject fn;
|
jaroslav@1174
|
122 |
|
jaroslav@1174
|
123 |
public JSFn(JSObject fn) {
|
jaroslav@1174
|
124 |
this.fn = fn;
|
jaroslav@1174
|
125 |
}
|
jaroslav@1174
|
126 |
|
jaroslav@1174
|
127 |
@Override
|
jaroslav@1181
|
128 |
public Object invoke(Object thiz, Object... args) throws Exception {
|
jaroslav@1179
|
129 |
try {
|
jaroslav@1179
|
130 |
return fn.call("fn", args); // NOI18N
|
jaroslav@1179
|
131 |
} catch (Error t) {
|
jaroslav@1179
|
132 |
t.printStackTrace();
|
jaroslav@1179
|
133 |
throw t;
|
jaroslav@1179
|
134 |
} catch (Exception t) {
|
jaroslav@1179
|
135 |
t.printStackTrace();
|
jaroslav@1179
|
136 |
throw t;
|
jaroslav@1179
|
137 |
}
|
jaroslav@1174
|
138 |
}
|
jaroslav@1041
|
139 |
}
|
jaroslav@1041
|
140 |
}
|