This changes the HtmlDemo to be a minimalistic web browser. I also added
a view example pages to look at. Of course, nothing is preventing you
from typing in http:// addresses in the location bar. Don't expect too
much from it though :-/
2006-11-06 Roman Kennke <[EMAIL PROTECTED]>
* examples/gnu/classpath/examples/swing/HtmlDemo.java:
Changed to implement a minimalistic browser.
* examples/gnu/classpath/examples/swing/forms.html,
* examples/gnu/classpath/examples/swing/textstyles.html,
* examples/gnu/classpath/examples/swing/welcome.html:
Some example content.
/Roman
Index: examples/gnu/classpath/examples/swing/HtmlDemo.java
===================================================================
RCS file: /cvsroot/classpath/classpath/examples/gnu/classpath/examples/swing/HtmlDemo.java,v
retrieving revision 1.5
diff -u -1 -5 -r1.5 HtmlDemo.java
--- examples/gnu/classpath/examples/swing/HtmlDemo.java 25 Aug 2006 12:00:08 -0000 1.5
+++ examples/gnu/classpath/examples/swing/HtmlDemo.java 6 Nov 2006 16:26:12 -0000
@@ -28,296 +28,168 @@
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version. */
package gnu.classpath.examples.swing;
import java.awt.BorderLayout;
import java.awt.Dimension;
-import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
+import java.io.IOException;
+import java.net.URL;
+import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
-import javax.swing.JTextArea;
+import javax.swing.JTextField;
import javax.swing.JTextPane;
import javax.swing.SwingUtilities;
-import javax.swing.text.AbstractDocument;
-import javax.swing.text.Element;
-import javax.swing.text.html.HTMLDocument;
+import javax.swing.event.HyperlinkEvent;
+import javax.swing.event.HyperlinkListener;
/**
* Parses and displays HTML content.
*
* @author Audrius Meskauskas ([EMAIL PROTECTED])
*/
public class HtmlDemo extends JPanel
{
+ private class LoadActionListener
+ implements ActionListener
+ {
+
+ public void actionPerformed(ActionEvent event)
+ {
+ String urlStr = url.getText();
+ try
+ {
+ html.setPage(url.getText());
+ }
+ catch (IOException ex)
+ {
+ System.err.println("exception while loading: " + ex);
+ ex.printStackTrace();
+ }
+ }
+ }
+
/**
* Setting this to true causes the parsed element structure to be dumped.
*/
private static final boolean DEBUG = true;
- JTextPane html = new JTextPane();
-
- JTextArea text = new JTextArea("<html><body>\n"
+ /**
+ * The URL entry field.
+ */
+ JTextField url = new JTextField();
- + "<h1>H1 Headline</h1>\n"
- + "<h2>H2 Headline</h2>\n"
- + "<h3>H3 Headline</h3>\n"
- + "<h4>H4 Headline</h3>\n"
- + "<h5>H5 Headline</h5>\n"
- + "<h6>H6 Headline</h6>\n"
- + "<h1>CSS colors via font tag</h1>\n"
- + "<p>"
- + "<font color=\"maroon\">maroon</font>\n"
- + "<font color=\"red\">red</font>\n"
- + "<font color=\"orange\">orange</font>\n"
- + "<font color=\"yellow\">yellow</font>\n"
- + "<font color=\"olive\">olive</font>\n"
- + "<font color=\"purple\">purlpe</font>\n"
- + "<font color=\"fuchsia\">fuchsia</font>\n"
- + "<font color=\"white\">white</font>\n"
- + "<font color=\"lime\">lime</font>\n"
- + "<font color=\"green\">green</font>\n"
- + "<font color=\"navy\">navy</font>\n"
- + "<font color=\"blue\">blue</font>\n"
- + "<font color=\"aqua\">aqua</font>\n"
- + "<font color=\"teal\">teal</font>\n"
- + "<font color=\"black\">black</font>\n"
- + "<font color=\"silver\">silver</font>\n"
- + "<font color=\"gray\">gray</font>\n"
- + "</p>"
- + "<h1>Some HTML formatting tags</h1>\n"
- + "<p>Normal <b>Bold</b> <i>Italic</i> <b><i>Bold + Italic</i></b></p>\n"
- + "<p><big>Big</big> <em>Emphasized</em> <small>Small</small>\n"
- + "<strike>Strike</strike> <strong>Strong</strong> <u>Underline</u></p>\n"
- + "<p>Normal vs <sup>Superscript</sup> vs <sub>Subscript</sub> text</p>\n"
- + "</body></html>\n");
-
- JPanel buttons;
+ JTextPane html = new JTextPane();
int n;
public HtmlDemo()
{
super();
html.setContentType("text/html"); // not now.
createContent();
}
-
+
/**
* Returns a panel with the demo content. The panel uses a BorderLayout(), and
* the BorderLayout.SOUTH area is empty, to allow callers to add controls to
* the bottom of the panel if they want to (a close button is added if this
* demo is being run as a standalone demo).
*/
private void createContent()
{
setLayout(new BorderLayout());
-
- JPanel center = new JPanel();
- GridLayout layout = new GridLayout();
- layout.setRows(2);
- center.setLayout(layout);
- center.add(new JScrollPane(text));
- center.add(new JScrollPane(html));
-
- buttons = new JPanel();
-
- JButton parse = new JButton("parse");
- parse.addActionListener(new ActionListener()
- {
- public void actionPerformed(ActionEvent event)
- {
- String t = text.getText();
- System.out.println("HtmlDemo.java.createContent:Parsing started");
- html.setText(t);
- System.out.println("HtmlDemo.java.createContent:Parsing completed");
- if (DEBUG)
- ((AbstractDocument) html.getDocument()).dump(System.out);
- }
- });
-
- buttons.add(parse);
-
- JButton insertBeforeEnd = new JButton("before end");
- insertBeforeEnd.addActionListener(new ActionListener()
- {
- public void actionPerformed(ActionEvent event)
- {
- HTMLDocument doc = (HTMLDocument) html.getDocument();
- Element el = doc.getElement("insertHere");
- System.out.println("Element found:"+el);
- try
- {
- doc.insertBeforeEnd(el,"before end "+(n++));
- }
- catch (Exception e)
- {
- e.printStackTrace();
- }
- }
- });
-
- JButton insertBeforeStart = new JButton("before start");
- insertBeforeStart.addActionListener(new ActionListener()
- {
- public void actionPerformed(ActionEvent event)
- {
- HTMLDocument doc = (HTMLDocument) html.getDocument();
- Element el = doc.getElement("insertHere");
- System.out.println("Element found:"+el);
- try
- {
- doc.insertBeforeStart(el,"before start "+(n++));
- }
- catch (Exception e)
- {
- e.printStackTrace();
- }
- }
- });
-
- JButton insertAfterEnd = new JButton("after end");
- insertAfterEnd.addActionListener(new ActionListener()
- {
- public void actionPerformed(ActionEvent event)
- {
- HTMLDocument doc = (HTMLDocument) html.getDocument();
- Element el = doc.getElement("insertHere");
- System.out.println("Element found:"+el);
- try
- {
- doc.insertAfterEnd(el,"after end "+(n++));
- }
- catch (Exception e)
- {
- e.printStackTrace();
- }
- }
- });
-
- JButton insertAfterStart = new JButton("after start");
- insertAfterStart.addActionListener(new ActionListener()
+
+ html.setEditable(false);
+ html.addHyperlinkListener(new HyperlinkListener()
+ {
+
+ public void hyperlinkUpdate(HyperlinkEvent event)
{
- public void actionPerformed(ActionEvent event)
+ URL u = event.getURL();
+ if (u != null)
{
- HTMLDocument doc = (HTMLDocument) html.getDocument();
- Element el = doc.getElement("insertHere");
- System.out.println("Element found:"+el);
+ url.setText(u.toString());
try
{
- doc.insertAfterStart(el,"after start "+(n++));
+ html.setPage(u);
}
- catch (Exception e)
+ catch (IOException ex)
{
- e.printStackTrace();
+ ex.printStackTrace();
}
}
- });
-
+ }
+
+ });
- JButton setInner = new JButton("inner");
- setInner.addActionListener(new ActionListener()
+ JScrollPane scroller = new JScrollPane(html);
+ JPanel urlPanel = new JPanel();
+ urlPanel.setLayout(new BoxLayout(urlPanel, BoxLayout.X_AXIS));
+ url.setMaximumSize(new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE));
+ LoadActionListener action = new LoadActionListener();
+ url.addActionListener(action);
+ urlPanel.add(url);
+ JButton loadButton = new JButton("go");
+ urlPanel.add(loadButton);
+ loadButton.addActionListener(action);
+ add(urlPanel, BorderLayout.NORTH);
+ add(scroller, BorderLayout.CENTER);
+
+ // Load start page.
+ URL startpage = getClass().getResource("forms.html");
+ try
{
- public void actionPerformed(ActionEvent event)
- {
- HTMLDocument doc = (HTMLDocument) html.getDocument();
- Element el = doc.getElement("insertHere");
- System.out.println("Element found:"+el);
- try
- {
- doc.setInnerHTML(el,"inner "+(n++));
- }
- catch (Exception e)
- {
- e.printStackTrace();
- }
- }
- });
-
- JButton setOuter = new JButton("outer");
- setOuter.addActionListener(new ActionListener()
+ html.setPage(startpage);
+ url.setText(startpage.toString());
+ }
+ catch (IOException ex)
{
- public void actionPerformed(ActionEvent event)
- {
- HTMLDocument doc = (HTMLDocument) html.getDocument();
- Element el = doc.getElement("insertHere");
- System.out.println("Element found:"+el);
- try
- {
- doc.setOuterHTML(el,"outer "+(n++));
- }
- catch (Exception e)
- {
- e.printStackTrace();
- }
- }
- });
-
-
- buttons.add(insertBeforeStart);
- buttons.add(insertAfterStart);
- buttons.add(insertBeforeEnd);
- buttons.add(insertAfterEnd);
-
- buttons.add(setInner);
- buttons.add(setOuter);
-
- add(center, BorderLayout.CENTER);
- add(buttons, BorderLayout.SOUTH);
+ System.err.println("couldn't load page: " + startpage);
+ }
}
/**
* The executable method to display the editable table.
*
* @param args
* unused.
*/
public static void main(String[] args)
{
SwingUtilities.invokeLater
(new Runnable()
{
public void run()
{
HtmlDemo demo = new HtmlDemo();
-
- JButton exit = new JButton("exit");
- exit.addActionListener(new ActionListener()
- {
- public void actionPerformed(ActionEvent event)
- {
- System.exit(0);
- }
- });
-
- demo.buttons.add(exit);
-
JFrame frame = new JFrame();
frame.getContentPane().add(demo);
frame.setSize(new Dimension(700, 480));
frame.setVisible(true);
}
});
}
/**
* Returns a DemoFactory that creates a HtmlDemo.
*
* @return a DemoFactory that creates a HtmlDemo
*/
public static DemoFactory createDemoFactory()
{
Index: examples/gnu/classpath/examples/swing/forms.html
===================================================================
RCS file: examples/gnu/classpath/examples/swing/forms.html
diff -N examples/gnu/classpath/examples/swing/forms.html
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ examples/gnu/classpath/examples/swing/forms.html 6 Nov 2006 16:26:12 -0000
@@ -0,0 +1,69 @@
+<!-- welcome.html -- Some HTML stuff to show Swing HTML
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. -->
+
+<html>
+
+ <head>
+ <title>HTML text styles</title>
+ </head>
+ <body>
+ <a href="welcome.html">Back to start page</a>
+ <h1>Some form elements</h1>
+ <h2>Textarea</h2>
+ <textarea cols="30" rows="5">
+ Hello GNU Classpath world. This text should show up in a text area
+ that has a size of 30 columns and 5 rows
+ </textarea>
+
+ <h2>Buttons</h2>
+ <p>
+ <input type="submit"></input>
+ <input type="reset"></input>
+ <input type="button" value="Some button"></input>
+ </p>
+
+ <h2>Checkboxes and Radiobuttons</h2>
+ <p>
+ <input type="checkbox">Check this!</input>
+ <input type="checkbox">Or this</input>
+ </p>
+ <p>
+ <input type="radio">A radio button</input>
+ <input type="radio">Another radio</input>
+ </p>
+ </body>
+</html>
\ No newline at end of file
Index: examples/gnu/classpath/examples/swing/textstyles.html
===================================================================
RCS file: examples/gnu/classpath/examples/swing/textstyles.html
diff -N examples/gnu/classpath/examples/swing/textstyles.html
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ examples/gnu/classpath/examples/swing/textstyles.html 6 Nov 2006 16:26:12 -0000
@@ -0,0 +1,78 @@
+<!-- welcome.html -- Some HTML stuff to show Swing HTML
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. -->
+
+<html>
+
+ <head>
+ <title>HTML text styles</title>
+ </head>
+ <body>
+ <a href="welcome.html">Back to start page</a>
+ <h1>Colors</h1>
+ <p>The following are the 16 named colors in HTML. Of course you can also
+ use all RGB colors by specifying a value in the <code>#RRGGBB</code>
+ notation.</p>
+ <p>
+ <font color="black">Black</font>, <font color="gray">Gray</font>,
+ <font color="maroon">Maroon</font>, <font color="red">Red</font>,
+ <font color="green">Green</font>, <font color="lime">Lime</font>,
+ <font color="olive">Olive</font>, <font color="yellow">Yellow</font>,
+ <font color="navy">Navy</font>, <font color="blue">Blue</font>,
+ <font color="purple">Purple</font>, <font color="fuchsia">Fuchsia</font>,
+ <font color="teal">Teal</font>, <font color="aque">Aqua</font>,
+ <font color="silver">Silver</font>, <font color="white">White</font></p>
+ <h1>Font styles</h1>
+ <p>The following lists the logical and physical font styles that can be set
+ by certain HTML tags</p>
+ <p>
+ <!--<abbr>Abbreviation</abbr>, <acronym>Acronym</acronym>,-->
+ <address>Address</address>, <b>Bold</b>, <big>Big</big>,
+ <cite>Citation</cite>, <code>Code</code>, <del>Deleted</del>,
+ <em>Emphasized<em>, <i>Italic</i>, <ins>Inserted</ins>, <q>Quote</q>,
+ <s>Stroke-Through</s>, <samp>Example</samp>, <small>Small</small>,
+ <strike>Strike</strike>, <strong>Strong</strong>, <sub>Subscript</sub>,
+ <sup>Superscript</sup>, <u>Underlined</u>, <var>Variable</var>
+ </p>
+ <h1>Header Level 1</h1>
+ <h2>Header Level 2</h2>
+ <h3>Header Level 3</h3>
+ <h4>Header Level 4</h4>
+ <h5>Header Level 5</h5>
+ <h6>Header Level 6</h6>
+ <center>Some centered Text</center>
+ </body>
+</html>
\ No newline at end of file
Index: examples/gnu/classpath/examples/swing/welcome.html
===================================================================
RCS file: examples/gnu/classpath/examples/swing/welcome.html
diff -N examples/gnu/classpath/examples/swing/welcome.html
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ examples/gnu/classpath/examples/swing/welcome.html 6 Nov 2006 16:26:12 -0000
@@ -0,0 +1,52 @@
+<!-- welcome.html -- Some HTML stuff to show Swing HTML
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. -->
+
+<html>
+ <head>
+ <title>GNU Classpath HTML Browser</title>
+ </head>
+ <body>
+ <img src="../icons/badge.png">
+ <h1>Welcome to GNU Classpath</h1>
+ <p>These pages are here to demonstrate the HTML rendering capabilities
+ of GNU Classpath's Swing.</p>
+ <ul>
+ <li><a href="textstyles.html">Text styles</li>
+ <li><a href="forms.html">Form elements</li>
+ </ul>
+ </body>
+</html>
\ No newline at end of file
