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.awt.Desktop;
29 import java.io.File;
30 import java.lang.reflect.Method;
31 import java.net.URI;
32 import java.security.AccessController;
33 import java.security.PrivilegedActionException;
34 import java.security.PrivilegedExceptionAction;
35 import javafx.application.Application;
36 import netscape.javascript.JSObject;
37
38
39 public abstract class HostServicesDelegate {
40
41 private static Method getInstanceMeth = null;
42
43 public static HostServicesDelegate getInstance(final Application app) {
44 // Call into the deploy code to get the delegate class
45 HostServicesDelegate instance = null;
46 try {
47 instance = AccessController.doPrivileged(
48 (PrivilegedExceptionAction<HostServicesDelegate>) () -> {
49 if (getInstanceMeth == null) {
50 try {
51 final String factoryClassName =
52 "com.sun.deploy.uitoolkit.impl.fx.HostServicesFactory";
53
54 Class factoryClass = Class.forName(factoryClassName,
55 true,
56 HostServicesDelegate.class.getClassLoader());
57 getInstanceMeth = factoryClass.getMethod(
58 "getInstance", Application.class);
59 } catch (Exception ex) {
60 return null;
61 }
62 }
63 return (HostServicesDelegate)
64 getInstanceMeth.invoke(null, app);
65 }
66 );
67 } catch (PrivilegedActionException pae) {
68 System.err.println(pae.getException().toString());
69 return null;
70 }
71 if (instance == null) {
72 // in this case we are in standalone mode
73 instance = StandaloneHostService.getInstance(app);
74 }
75 return instance;
76 }
77
78 protected HostServicesDelegate() {
79 }
80
81 public abstract String getCodeBase();
82
83 public abstract String getDocumentBase();
84
85 public abstract void showDocument(String uri);
86
87 public abstract JSObject getWebContext();
88
89 // StandaloneHostService implementation
90 private static class StandaloneHostService extends HostServicesDelegate {
91
92 private static HostServicesDelegate instance = null;
93
94 private Class appClass = null;
95
96 public static HostServicesDelegate getInstance(Application app) {
97 synchronized (StandaloneHostService.class) {
98 if (instance == null) {
99 instance = new StandaloneHostService(app);
100 }
101 return instance;
102 }
103 }
104
105 private StandaloneHostService(Application app) {
106 appClass = app.getClass();
107 }
108
109 @Override
110 public String getCodeBase() {
111 // If the application was launched in standalone mode, this method
112 // returns the directory containing the application jar file.
113 // If the application is not packaged in a jar file, this method
114 // returns the empty string.
115 String theClassFile = appClass.getName();
116 int idx = theClassFile.lastIndexOf(".");
117 if (idx >= 0) {
118 // Strip off package name prefix in class name if exists
119 // getResoruce will automatically add in package name during
120 // lookup; see Class.getResource javadoc for more details
121 theClassFile = theClassFile.substring(idx + 1);
122 }
123 theClassFile = theClassFile + ".class";
124
125 String classUrlString = appClass.getResource(theClassFile).toString();
126 if (!classUrlString.startsWith("jar:file:") ||
127 classUrlString.indexOf("!") == -1) {
128 return "";
129 }
130 // Strip out the "jar:" and everything after and including the "!"
131 String urlString = classUrlString.substring(4,
132 classUrlString.lastIndexOf("!"));
133 File jarFile = null;
134 try {
135 jarFile = new File(new URI(urlString).getPath());
136 } catch (Exception e) {
137 // should not happen
138 }
139 if (jarFile != null) {
140 String codebase = jarFile.getParent();
141 if (codebase != null) {
142 return toURIString(codebase);
143 }
144 }
145
146 return "";
147 }
148
149 private String toURIString(String filePath) {
150 try {
151 return new File(filePath).toURI().toString();
152 } catch (Exception e) {
153 // should not happen
154 // dump stack for debug purpose
155 e.printStackTrace();
156 }
157 return "";
158 }
159
160 @Override public String getDocumentBase() {
161 // If the application was launched in standalone mode,
162 // this method returns the URI of the current directory.
163 return toURIString(System.getProperty("user.dir"));
164 }
165
166 static final String[] browsers = {"google-chrome", "firefox", "opera",
167 "konqueror", "mozilla"};
168
169 @Override
170 public void showDocument(final String uri) {
171 String osName = System.getProperty("os.name");
172 try {
173 if (osName.startsWith("Mac OS")) {
174 Desktop.getDesktop().browse(URI.create(uri));
175 } else if (osName.startsWith("Windows")) {
176 Runtime.getRuntime().exec(
177 "rundll32 url.dll,FileProtocolHandler " + uri);
178 } else { //assume Unix or Linux
179 String browser = null;
180 for (String b : browsers) {
181 if (browser == null && Runtime.getRuntime().exec(
182 new String[]{"which", b}).getInputStream().read() != -1) {
183 Runtime.getRuntime().exec(new String[]{browser = b, uri});
184 }
185 }
186 if (browser == null) {
187 throw new Exception("No web browser found");
188 }
189 }
190 } catch (Exception e) {
191 // should not happen
192 // dump stack for debug purpose
193 e.printStackTrace();
194 }
195 }
196
197 @Override public JSObject getWebContext() {
198 return null;
199 }
200 }
201 }