1 /*
2 * Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.javafx.application;
27
28 import java.io.File;
29 import java.lang.reflect.Method;
30 import java.net.URI;
31 import java.security.AccessController;
32 import java.security.PrivilegedActionException;
33 import java.security.PrivilegedExceptionAction;
34 import javafx.application.Application;
35 import netscape.javascript.JSObject;
36
37
38 public abstract class HostServicesDelegate {
39
40 private static Method getInstanceMeth = null;
41
42 public static HostServicesDelegate getInstance(final Application app) {
43 // Call into the deploy code to get the delegate class
44 HostServicesDelegate instance = null;
45 try {
46 instance = AccessController.doPrivileged(
47 (PrivilegedExceptionAction<HostServicesDelegate>) () -> {
48 if (getInstanceMeth == null) {
49 try {
50 final String factoryClassName =
51 "com.sun.deploy.uitoolkit.impl.fx.HostServicesFactory";
52
53 Class factoryClass = Class.forName(factoryClassName,
54 true,
55 HostServicesDelegate.class.getClassLoader());
56 getInstanceMeth = factoryClass.getMethod(
57 "getInstance", Application.class);
58 } catch (Exception ex) {
59 return null;
60 }
61 }
62 return (HostServicesDelegate)
63 getInstanceMeth.invoke(null, app);
64 }
65 );
66 } catch (PrivilegedActionException pae) {
67 System.err.println(pae.getException().toString());
68 return null;
69 }
70 if (instance == null) {
71 // in this case we are in standalone mode
72 instance = StandaloneHostService.getInstance(app);
73 }
74 return instance;
75 }
76
77 protected HostServicesDelegate() {
78 }
79
80 public abstract String getCodeBase();
81
82 public abstract String getDocumentBase();
83
84 public abstract void showDocument(String uri);
85
86 public abstract JSObject getWebContext();
87
88 // StandaloneHostService implementation
89 private static class StandaloneHostService extends HostServicesDelegate {
90
91 private static HostServicesDelegate instance = null;
92
93 private Class appClass = null;
94
95 public static HostServicesDelegate getInstance(Application app) {
96 synchronized (StandaloneHostService.class) {
97 if (instance == null) {
98 instance = new StandaloneHostService(app);
99 }
100 return instance;
101 }
102 }
103
104 private StandaloneHostService(Application app) {
105 appClass = app.getClass();
106 }
107
108 @Override
109 public String getCodeBase() {
110 // If the application was launched in standalone mode, this method
111 // returns the directory containing the application jar file.
112 // If the application is not packaged in a jar file, this method
113 // returns the empty string.
114 String theClassFile = appClass.getName();
115 int idx = theClassFile.lastIndexOf(".");
116 if (idx >= 0) {
117 // Strip off package name prefix in class name if exists
118 // getResoruce will automatically add in package name during
119 // lookup; see Class.getResource javadoc for more details
120 theClassFile = theClassFile.substring(idx + 1);
121 }
122 theClassFile = theClassFile + ".class";
123
124 String classUrlString = appClass.getResource(theClassFile).toString();
125 if (!classUrlString.startsWith("jar:file:") ||
126 classUrlString.indexOf("!") == -1) {
127 return "";
128 }
129 // Strip out the "jar:" and everything after and including the "!"
130 String urlString = classUrlString.substring(4,
131 classUrlString.lastIndexOf("!"));
132 File jarFile = null;
133 try {
134 jarFile = new File(new URI(urlString).getPath());
135 } catch (Exception e) {
136 // should not happen
137 }
138 if (jarFile != null) {
139 String codebase = jarFile.getParent();
140 if (codebase != null) {
141 return toURIString(codebase);
142 }
143 }
144
145 return "";
146 }
147
148 private String toURIString(String filePath) {
149 try {
150 return new File(filePath).toURI().toString();
151 } catch (Exception e) {
152 // should not happen
153 // dump stack for debug purpose
154 e.printStackTrace();
155 }
156 return "";
157 }
158
159 @Override public String getDocumentBase() {
160 // If the application was launched in standalone mode,
161 // this method returns the URI of the current directory.
162 return toURIString(System.getProperty("user.dir"));
163 }
164
165 static final String[] browsers = {"google-chrome", "firefox", "opera",
166 "konqueror", "mozilla"};
167
168 @Override
169 public void showDocument(final String uri) {
170 String osName = System.getProperty("os.name");
171 try {
172 if (osName.startsWith("Mac OS")) {
173 Class.forName("com.apple.eio.FileManager").getDeclaredMethod(
174 "openURL", new Class[]{String.class}).invoke(null,
175 new Object[]{uri});
176 } else if (osName.startsWith("Windows")) {
177 Runtime.getRuntime().exec(
178 "rundll32 url.dll,FileProtocolHandler " + uri);
179 } else { //assume Unix or Linux
180 String browser = null;
181 for (String b : browsers) {
182 if (browser == null && Runtime.getRuntime().exec(
183 new String[]{"which", b}).getInputStream().read() != -1) {
184 Runtime.getRuntime().exec(new String[]{browser = b, uri});
185 }
186 }
187 if (browser == null) {
188 throw new Exception("No web browser found");
189 }
190 }
191 } catch (Exception e) {
192 // should not happen
193 // dump stack for debug purpose
194 e.printStackTrace();
195 }
196 }
197
198 @Override public JSObject getWebContext() {
199 return null;
200 }
201 }
202 }