I did a partial implementation of javax.swing.text.html.FormView and
added FIXMEs for the things to do.
2006-01-25 Roman Kennke <[EMAIL PROTECTED]>
* javax/swing/text/html/FormView.java: New file.
/Roman
Index: javax/swing/text/html/FormView.java
===================================================================
RCS file: javax/swing/text/html/FormView.java
diff -N javax/swing/text/html/FormView.java
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ javax/swing/text/html/FormView.java 25 Jan 2006 15:09:26 -0000
@@ -0,0 +1,230 @@
+/* FormView.java -- A view for a variety of HTML form elements
+ 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. */
+
+
+package javax.swing.text.html;
+
+import java.awt.Component;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+import javax.swing.JButton;
+import javax.swing.JCheckBox;
+import javax.swing.JPasswordField;
+import javax.swing.JRadioButton;
+import javax.swing.JTextField;
+import javax.swing.UIManager;
+import javax.swing.text.AttributeSet;
+import javax.swing.text.ComponentView;
+import javax.swing.text.Element;
+import javax.swing.text.StyleConstants;
+
+/**
+ * A View that renders HTML form elements like buttons and input fields.
+ * This is implemented as a [EMAIL PROTECTED] ComponentView} that creates different Swing
+ * component depending on the type and setting of the different form elements.
+ *
+ * Namely, this view creates the following components:
+ * <table>
+ * <tr><th>Element type</th><th>Swing component</th></tr>
+ * <tr><td>input, button</td><td>JButton</td></tr>
+ * <tr><td>input, checkbox</td><td>JButton</td></tr>
+ * <tr><td>input, image</td><td>JButton</td></tr>
+ * <tr><td>input, password</td><td>JButton</td></tr>
+ * <tr><td>input, radio</td><td>JButton</td></tr>
+ * <tr><td>input, reset</td><td>JButton</td></tr>
+ * <tr><td>input, submit</td><td>JButton</td></tr>
+ * <tr><td>input, text</td><td>JButton</td></tr>
+ * <tr><td>select, size > 1 or with multiple attribute</td>
+ * <td>JList in JScrollPane</td></tr>
+ * <tr><td>select, size unspecified or == 1</td><td>JComboBox</td></tr>
+ * <tr><td>textarea, text</td><td>JTextArea in JScrollPane</td></tr>
+ * <tr><td>input, file</td><td>JTextField</td></tr>
+ * </table>
+ *
+ * @author Roman Kennke ([EMAIL PROTECTED])
+ */
+public class FormView
+ extends ComponentView
+ implements ActionListener
+{
+
+ /**
+ * If the value attribute of an <code><input type="submit">>
+ * tag is not specified, then this string is used.
+ *
+ * @deprecated As of JDK1.3 the value is fetched from the UIManager property
+ * <code>FormView.submitButtonText</code>.
+ */
+ public static final String SUBMIT =
+ UIManager.getString("FormView.submitButtonText");
+
+ /**
+ * If the value attribute of an <code><input type="reset">>
+ * tag is not specified, then this string is used.
+ *
+ * @deprecated As of JDK1.3 the value is fetched from the UIManager property
+ * <code>FormView.resetButtonText</code>.
+ */
+ public static final String RESET =
+ UIManager.getString("FormView.resetButtonText");
+
+ /**
+ * Creates a new <code>FormView</code>.
+ *
+ * @param el the element that is displayed by this view.
+ */
+ public FormView(Element el)
+ {
+ super(el);
+ }
+
+ /**
+ * Creates the correct AWT component for rendering the form element.
+ */
+ protected Component createComponent()
+ {
+ Component comp = null;
+ Element el = getElement();
+ Object tag = el.getAttributes().getAttribute(StyleConstants.NameAttribute);
+ if (tag.equals(HTML.Tag.INPUT))
+ {
+ AttributeSet atts = el.getAttributes();
+ String type = (String) atts.getAttribute(HTML.Attribute.TYPE);
+ String value = (String) atts.getAttribute(HTML.Attribute.VALUE);
+ if (type.equals("button"))
+ comp = new JButton(value);
+ else if (type.equals("checkbox"))
+ comp = new JCheckBox(value);
+ else if (type.equals("image"))
+ comp = new JButton(value); // FIXME: Find out how to fetch the image.
+ else if (type.equals("password"))
+ comp = new JPasswordField(value);
+ else if (type.equals("radio"))
+ comp = new JRadioButton(value);
+ else if (type.equals("reset"))
+ {
+ if (value == null || value.equals(""))
+ value = RESET;
+ comp = new JButton(value);
+ }
+ else if (type.equals("submit"))
+ {
+ if (value == null || value.equals(""))
+ value = SUBMIT;
+ comp = new JButton(value);
+ }
+ else if (type.equals("text"))
+ comp = new JTextField(value);
+
+ }
+ // FIXME: Implement the remaining components.
+ return comp;
+ }
+
+ /**
+ * Determines the maximum span for this view on the specified axis.
+ *
+ * @param axis the axis along which to determine the span
+ *
+ * @return the maximum span for this view on the specified axis
+ *
+ * @throws IllegalArgumentException if the axis is invalid
+ */
+ public float getMaximumSpan(int axis)
+ {
+ // FIXME: The specs say that for some components the maximum span == the
+ // preferred span of the component. This should be figured out and
+ // implemented accordingly.
+ float span;
+ if (axis == X_AXIS)
+ span = getComponent().getMaximumSize().width;
+ else if (axis == Y_AXIS)
+ span = getComponent().getMaximumSize().height;
+ else
+ throw new IllegalArgumentException("Invalid axis parameter");
+ return span;
+ }
+
+ /**
+ * Processes an action from the Swing component.
+ *
+ * If the action comes from a submit button, the form is submitted by calling
+ * [EMAIL PROTECTED] #submitData}. In the case of a reset button, the form is reset to
+ * the original state. If the action comes from a password or text field,
+ * then the input focus is transferred to the next input element in the form,
+ * unless this text/password field is the last one, in which case the form
+ * is submitted.
+ *
+ * @param ev the action event
+ */
+ public void actionPerformed(ActionEvent ev)
+ {
+ Element el = getElement();
+ Object tag = el.getAttributes().getAttribute(StyleConstants.NameAttribute);
+ if (tag.equals(HTML.Tag.INPUT))
+ {
+ AttributeSet atts = el.getAttributes();
+ String type = (String) atts.getAttribute(HTML.Attribute.TYPE);
+ if (type.equals("submit"))
+ submitData(""); // FIXME: How to fetch the actual form data?
+ }
+ // FIXME: Implement the remaining actions.
+ }
+
+ /**
+ * Submits the form data. A separate thread is created to do the
+ * transmission.
+ *
+ * @param data the form data
+ */
+ protected void submitData(String data)
+ {
+ // FIXME: Implement this.
+ }
+
+ /**
+ * Submits the form data in response to a click on a
+ * <code><input type="image"></code> element.
+ *
+ * @param imageData the mouse click coordinates
+ */
+ protected void imageSubmit(String imageData)
+ {
+ // FIXME: Implement this.
+ }
+}
_______________________________________________
Classpath-patches mailing list
[email protected]
http://developer.classpath.org/mailman/listinfo/classpath-patches
