1 /*
2 * Copyright (c) 1995, 2005, 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 sun.applet;
27
28 import java.util.*;
29 import java.io.*;
30 import java.net.URL;
31 import java.net.MalformedURLException;
32 import java.awt.*;
33 import java.applet.*;
34
35
36 /**
37 * Sample applet panel class. The panel manages and manipulates the
38 * applet as it is being loaded. It forks a seperate thread in a new
39 * thread group to call the applet's init(), start(), stop(), and
40 * destroy() methods.
41 *
42 * @author Arthur van Hoff
43 *
44 * @deprecated The Applet API is deprecated. See the
45 * <a href="../../java/applet/package-summary.html"> java.applet package
46 * documentation</a> for further information.
47 */
48 @Deprecated(since = "9")
49 class AppletViewerPanel extends AppletPanel {
50
51 /* Are we debugging? */
52 static boolean debug = false;
53
54 /**
55 * The document url.
56 */
57 URL documentURL;
58
59 /**
60 * The base url.
61 */
62 URL baseURL;
63
64 /**
65 * The attributes of the applet.
66 */
67 Hashtable<String, String> atts;
68
69 /*
70 * JDK 1.1 serialVersionUID
71 */
72 private static final long serialVersionUID = 8890989370785545619L;
73
74 /**
75 * Construct an applet viewer and start the applet.
76 */
77 AppletViewerPanel(URL documentURL, Hashtable<String, String> atts) {
78 this.documentURL = documentURL;
79 this.atts = atts;
80
81 String att = getParameter("codebase");
82 if (att != null) {
83 if (!att.endsWith("/")) {
84 att += "/";
85 }
86 try {
87 baseURL = new URL(documentURL, att);
88 } catch (MalformedURLException e) {
89 }
90 }
91 if (baseURL == null) {
92 String file = documentURL.getFile();
93 int i = file.lastIndexOf('/');
94 if (i >= 0 && i < file.length() - 1) {
95 try {
96 baseURL = new URL(documentURL, file.substring(0, i + 1));
97 } catch (MalformedURLException e) {
98 }
99 }
100 }
101
102 // when all is said & done, baseURL shouldn't be null
103 if (baseURL == null)
104 baseURL = documentURL;
105
106
107 }
108
109 /**
110 * Get an applet parameter.
111 */
112 public String getParameter(String name) {
113 return atts.get(name.toLowerCase());
114 }
115
116 /**
117 * Get the document url.
118 */
119 public URL getDocumentBase() {
120 return documentURL;
121
122 }
123
124 /**
125 * Get the base url.
126 */
127 public URL getCodeBase() {
128 return baseURL;
129 }
130
131 /**
132 * Get the width.
133 */
134 public int getWidth() {
135 String w = getParameter("width");
136 if (w != null) {
137 return Integer.valueOf(w).intValue();
138 }
139 return 0;
140 }
141
142
143 /**
144 * Get the height.
145 */
146 public int getHeight() {
147 String h = getParameter("height");
148 if (h != null) {
149 return Integer.valueOf(h).intValue();
150 }
151 return 0;
152 }
153
154 /**
155 * Get initial_focus
156 */
157 public boolean hasInitialFocus()
158 {
159
160 // 6234219: Do not set initial focus on an applet
161 // during startup if applet is targeted for
162 // JDK 1.1/1.2. [stanley.ho]
163 if (isJDK11Applet() || isJDK12Applet())
164 return false;
165
166 String initialFocus = getParameter("initial_focus");
167
168 if (initialFocus != null)
169 {
170 if (initialFocus.toLowerCase().equals("false"))
171 return false;
172 }
173
174 return true;
175 }
176
177 /**
178 * Get the code parameter
179 */
180 public String getCode() {
181 return getParameter("code");
182 }
183
184
185 /**
186 * Return the list of jar files if specified.
187 * Otherwise return null.
188 */
189 public String getJarFiles() {
190 return getParameter("archive");
191 }
192
193 /**
194 * Return the value of the object param
195 */
196 public String getSerializedObject() {
197 return getParameter("object");// another name?
198 }
199
200
201 /**
202 * Get the applet context. For now this is
203 * also implemented by the AppletPanel class.
204 */
205 @SuppressWarnings("deprecation")
206 public AppletContext getAppletContext() {
207 return (AppletContext)getParent();
208 }
209
210 static void debug(String s) {
211 if(debug)
212 System.err.println("AppletViewerPanel:::" + s);
213 }
214
215 static void debug(String s, Throwable t) {
216 if(debug) {
217 t.printStackTrace();
218 debug(s);
219 }
220 }
221 }