/*
 * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package javax.swing.text.html;

import java.awt.*;
import java.awt.event.*;
import java.net.URLEncoder;
import java.net.MalformedURLException;
import java.io.IOException;
import java.net.URL;
import javax.swing.text.*;
import javax.swing.*;


A view that supports the <ISINDEX< tag. This is implemented as a JPanel that contains
Author:Sunita Mani
/** * A view that supports the &lt;ISINDEX&lt; tag. This is implemented * as a JPanel that contains * * @author Sunita Mani */
class IsindexView extends ComponentView implements ActionListener { JTextField textField;
Creates an IsindexView
/** * Creates an IsindexView */
public IsindexView(Element elem) { super(elem); }
Creates the components necessary to implement this view. The component returned is a JPanel, that contains the PROMPT to the left and JTextField to the right.
/** * Creates the components necessary to implement * this view. The component returned is a <code>JPanel</code>, * that contains the PROMPT to the left and <code>JTextField</code> * to the right. */
public Component createComponent() { AttributeSet attr = getElement().getAttributes(); JPanel panel = new JPanel(new BorderLayout()); panel.setBackground(null); String prompt = (String)attr.getAttribute(HTML.Attribute.PROMPT); if (prompt == null) { prompt = UIManager.getString("IsindexView.prompt"); } JLabel label = new JLabel(prompt); textField = new JTextField(); textField.addActionListener(this); panel.add(label, BorderLayout.WEST); panel.add(textField, BorderLayout.CENTER); panel.setAlignmentY(1.0f); panel.setOpaque(false); return panel; }
Responsible for processing the ActionEvent. In this case this is hitting enter/return in the text field. This will construct the URL from the base URL of the document. To the URL is appended a '?' followed by the contents of the JTextField. The search contents are URLEncoded.
/** * Responsible for processing the ActionEvent. * In this case this is hitting enter/return * in the text field. This will construct the * URL from the base URL of the document. * To the URL is appended a '?' followed by the * contents of the JTextField. The search * contents are URLEncoded. */
@SuppressWarnings("deprecation") public void actionPerformed(ActionEvent evt) { String data = textField.getText(); if (data != null) { data = URLEncoder.encode(data); } AttributeSet attr = getElement().getAttributes(); HTMLDocument hdoc = (HTMLDocument)getElement().getDocument(); String action = (String) attr.getAttribute(HTML.Attribute.ACTION); if (action == null) { action = hdoc.getBase().toString(); } try { URL url = new URL(action+"?"+data); JEditorPane pane = (JEditorPane)getContainer(); pane.setPage(url); } catch (MalformedURLException e1) { } catch (IOException e2) { } } }