001 /*
002 * Copyright 1998-2000 Sun Microsystems, Inc. All Rights Reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation. Sun designates this
008 * particular file as subject to the "Classpath" exception as provided
009 * by Sun in the LICENSE file that accompanied this code.
010 *
011 * This code is distributed in the hope that it will be useful, but WITHOUT
012 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
014 * version 2 for more details (a copy is included in the LICENSE file that
015 * accompanied this code).
016 *
017 * You should have received a copy of the GNU General Public License version
018 * 2 along with this work; if not, write to the Free Software Foundation,
019 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020 *
021 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022 * CA 95054 USA or visit www.sun.com if you need additional information or
023 * have any questions.
024 */
025 package javax.swing.text.html;
026
027 import java.awt.*;
028 import java.awt.event.*;
029 import java.net.URLEncoder;
030 import java.net.MalformedURLException;
031 import java.io.IOException;
032 import java.net.URL;
033 import javax.swing.text.*;
034 import javax.swing.*;
035
036 /**
037 * A view that supports the <ISINDEX< tag. This is implemented
038 * as a JPanel that contains
039 *
040 * @author Sunita Mani
041 * @version 1.18, 05/05/07
042 */
043
044 class IsindexView extends ComponentView implements ActionListener {
045
046 JTextField textField;
047
048 /**
049 * Creates an IsindexView
050 */
051 public IsindexView(Element elem) {
052 super (elem);
053 }
054
055 /**
056 * Creates the components necessary to to implement
057 * this view. The component returned is a <code>JPanel</code>,
058 * that contains the PROMPT to the left and <code>JTextField</code>
059 * to the right.
060 */
061 public Component createComponent() {
062 AttributeSet attr = getElement().getAttributes();
063
064 JPanel panel = new JPanel(new BorderLayout());
065 panel.setBackground(null);
066
067 String prompt = (String) attr
068 .getAttribute(HTML.Attribute.PROMPT);
069 if (prompt == null) {
070 prompt = UIManager.getString("IsindexView.prompt");
071 }
072 JLabel label = new JLabel(prompt);
073
074 textField = new JTextField();
075 textField.addActionListener(this );
076 panel.add(label, BorderLayout.WEST);
077 panel.add(textField, BorderLayout.CENTER);
078 panel.setAlignmentY(1.0f);
079 panel.setOpaque(false);
080 return panel;
081 }
082
083 /**
084 * Responsible for processing the ActionEvent.
085 * In this case this is hitting enter/return
086 * in the text field. This will construct the
087 * URL from the base URL of the document.
088 * To the URL is appended a '?' followed by the
089 * contents of the JTextField. The search
090 * contents are URLEncoded.
091 */
092 public void actionPerformed(ActionEvent evt) {
093
094 String data = textField.getText();
095 if (data != null) {
096 data = URLEncoder.encode(data);
097 }
098
099 AttributeSet attr = getElement().getAttributes();
100 HTMLDocument hdoc = (HTMLDocument) getElement().getDocument();
101
102 String action = (String) attr
103 .getAttribute(HTML.Attribute.ACTION);
104 if (action == null) {
105 action = hdoc.getBase().toString();
106 }
107 try {
108 URL url = new URL(action + "?" + data);
109 JEditorPane pane = (JEditorPane) getContainer();
110 pane.setPage(url);
111 } catch (MalformedURLException e1) {
112 } catch (IOException e2) {
113 }
114 }
115 }
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