1 /* 2 * Copyright (c) 1998, 2000, 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 package javax.swing.text.html; 26 27 import java.awt.*; 28 import java.awt.event.*; 29 import java.net.URLEncoder; 30 import java.net.MalformedURLException; 31 import java.io.IOException; 32 import java.net.URL; 33 import javax.swing.text.*; 34 import javax.swing.*; 35 36 37 /** 38 * A view that supports the <ISINDEX< tag. This is implemented 39 * as a JPanel that contains 40 * 41 * @author Sunita Mani 42 */ 43 44 class IsindexView extends ComponentView implements ActionListener { 45 46 JTextField textField; 47 48 /** 49 * Creates an IsindexView 50 */ 51 public IsindexView(Element elem) { 52 super(elem); 53 } 54 55 /** 56 * Creates the components necessary to to implement 57 * this view. The component returned is a <code>JPanel</code>, 58 * that contains the PROMPT to the left and <code>JTextField</code> 59 * to the right. 60 */ 61 public Component createComponent() { 62 AttributeSet attr = getElement().getAttributes(); 63 64 JPanel panel = new JPanel(new BorderLayout()); 65 panel.setBackground(null); 66 67 String prompt = (String)attr.getAttribute(HTML.Attribute.PROMPT); 68 if (prompt == null) { 69 prompt = UIManager.getString("IsindexView.prompt"); 70 } 71 JLabel label = new JLabel(prompt); 72 73 textField = new JTextField(); 74 textField.addActionListener(this); 75 panel.add(label, BorderLayout.WEST); 76 panel.add(textField, BorderLayout.CENTER); 77 panel.setAlignmentY(1.0f); 78 panel.setOpaque(false); 79 return panel; 80 } 81 82 /** 83 * Responsible for processing the ActionEvent. 84 * In this case this is hitting enter/return 85 * in the text field. This will construct the 86 * URL from the base URL of the document. 87 * To the URL is appended a '?' followed by the 88 * contents of the JTextField. The search 89 * contents are URLEncoded. 90 */ 91 public void actionPerformed(ActionEvent evt) { 92 93 String data = textField.getText(); 94 if (data != null) { 95 data = URLEncoder.encode(data); 96 } 97 98 99 AttributeSet attr = getElement().getAttributes(); 100 HTMLDocument hdoc = (HTMLDocument)getElement().getDocument(); 101 102 String action = (String) attr.getAttribute(HTML.Attribute.ACTION); 103 if (action == null) { 104 action = hdoc.getBase().toString(); 105 } 106 try { 107 URL url = new URL(action+"?"+data); 108 JEditorPane pane = (JEditorPane)getContainer(); 109 pane.setPage(url); 110 } catch (MalformedURLException e1) { 111 } catch (IOException e2) { 112 } 113 } 114 }