Show Document
/* From http://java.sun.com/docs/books/tutorial/index.html */
/*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* -Redistribution of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* -Redistribution in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
* ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
* OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
* AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
* AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
* REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
* INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
* OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,
* EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or intended
* for use in the design, construction, operation or maintenance of any
* nuclear facility.
*/
/*
* 1.1 version.
*/
import java.applet.Applet;
import java.applet.AppletContext;
import java.awt.Button;
import java.awt.Choice;
import java.awt.Frame;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.Label;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.net.MalformedURLException;
import java.net.URL;
public class ShowDocument extends Applet implements ActionListener {
URLWindow urlWindow;
public void init() {
Button button = new Button("Bring up URL window");
button.addActionListener(this);
add(button);
urlWindow = new URLWindow(getAppletContext());
urlWindow.pack();
}
public void destroy() {
urlWindow.setVisible(false);
urlWindow = null;
}
public void actionPerformed(ActionEvent event) {
urlWindow.setVisible(true);
}
}
class URLWindow extends Frame implements ActionListener {
TextField urlField;
Choice choice;
AppletContext appletContext;
public URLWindow(AppletContext appletContext) {
super("Show a Document!");
this.appletContext = appletContext;
GridBagLayout gridBag = new GridBagLayout();
GridBagConstraints c = new GridBagConstraints();
setLayout(gridBag);
Label label1 = new Label("URL of document to show:", Label.RIGHT);
gridBag.setConstraints(label1, c);
add(label1);
urlField = new TextField("http://java.sun.com/", 40);
urlField.addActionListener(this);
c.gridwidth = GridBagConstraints.REMAINDER;
c.fill = GridBagConstraints.HORIZONTAL;
c.weightx = 1.0;
gridBag.setConstraints(urlField, c);
add(urlField);
Label label2 = new Label("Window/frame to show it in:", Label.RIGHT);
c.gridwidth = 1;
c.weightx = 0.0;
gridBag.setConstraints(label2, c);
add(label2);
choice = new Choice();
choice.addItem("(browser's choice)"); //don't specify
choice.addItem("My Personal Window"); //a window named
//"My Personal Window"
choice.addItem("_blank"); //a new, unnamed window
choice.addItem("_self");
choice.addItem("_parent");
choice.addItem("_top"); //the Frame that contained this
//applet
c.fill = GridBagConstraints.NONE;
c.gridwidth = GridBagConstraints.REMAINDER;
c.anchor = GridBagConstraints.WEST;
gridBag.setConstraints(choice, c);
add(choice);
Button button = new Button("Show document");
button.addActionListener(this);
c.weighty = 1.0;
c.ipadx = 10;
c.ipady = 10;
c.insets = new Insets(5, 0, 0, 0);
c.anchor = GridBagConstraints.SOUTH;
gridBag.setConstraints(button, c);
add(button);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent event) {
setVisible(false);
}
});
}
public void actionPerformed(ActionEvent event) {
String urlString = urlField.getText();
URL url = null;
try {
url = new URL(urlString);
} catch (MalformedURLException e) {
System.err.println("Malformed URL: " + urlString);
}
if (url != null) {
if (choice.getSelectedIndex() == 0) {
appletContext.showDocument(url);
} else {
appletContext.showDocument(url, choice.getSelectedItem());
}
}
}
}
//<applet code="ShowDocument.class" width=200 height=30>
//</applet>
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