public class

FormView

extends ComponentView
implements ActionListener
java.lang.Object
   ↳ javax.swing.text.View
     ↳ javax.swing.text.ComponentView
       ↳ javax.swing.text.html.FormView

Class Overview

Component decorator that implements the view interface for form elements, <input>, <textarea>, and <select>. The model for the component is stored as an attribute of the the element (using StyleConstants.ModelAttribute), and is used to build the component of the view. The type of the model is assumed to of the type that would be set by HTMLDocument.HTMLReader.FormAction. If there are multiple views mapped over the document, they will share the embedded component models.

The following table shows what components get built by this view.

Element Type Component built
input, type button JButton
input, type checkbox JCheckBox
input, type image JButton
input, type password JPasswordField
input, type radio JRadioButton
input, type reset JButton
input, type submit JButton
input, type text JTextField
select, size > 1 or multiple attribute defined JList in a JScrollPane
select, size unspecified or 1 JComboBox
textarea JTextArea in a JScrollPane
input, type file JTextField

Summary

Nested Classes
class FormView.MouseEventListener MouseEventListener class to handle form submissions when an input with type equal to image is clicked on. 
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Inherited Constants
From class javax.swing.text.View
From interface javax.swing.SwingConstants
Fields
public static final String RESET This field is deprecated. As of 1.3, value comes from UIManager UIManager property FormView.resetButtonText
public static final String SUBMIT This field is deprecated. As of 1.3, value now comes from UIManager property FormView.submitButtonText
Public Constructors
FormView(Element elem)
Creates a new FormView object.
Public Methods
void actionPerformed(ActionEvent evt)
Responsible for processeing the ActionEvent.
float getMaximumSpan(int axis)
Determines the maximum span for this view along an axis.
Protected Methods
Component createComponent()
Create the component.
void imageSubmit(String imageData)
This method is called to submit a form in response to a click on an image -- an <INPUT> form element of type "image".
void submitData(String data)
This method is responsible for submitting the form data.
[Expand]
Inherited Methods
From class javax.swing.text.ComponentView
From class javax.swing.text.View
From class java.lang.Object
From interface java.awt.event.ActionListener

Fields

public static final String RESET

This field is deprecated.
As of 1.3, value comes from UIManager UIManager property FormView.resetButtonText

If a value attribute is not specified for a FORM input element of type "reset", then this default string is used.

public static final String SUBMIT

This field is deprecated.
As of 1.3, value now comes from UIManager property FormView.submitButtonText

If a value attribute is not specified for a FORM input element of type "submit", then this default string is used.

Public Constructors

public FormView (Element elem)

Creates a new FormView object.

Parameters
elem the element to decorate

Public Methods

public void actionPerformed (ActionEvent evt)

Responsible for processeing the ActionEvent. If the element associated with the FormView, has a type of "submit", "reset", "text" or "password" then the action is processed. In the case of a "submit" the form is submitted. In the case of a "reset" the form is reset to its original state. In the case of "text" or "password", if the element is the last one of type "text" or "password", the form is submitted. Otherwise, focus is transferred to the next component in the form.

Parameters
evt the ActionEvent.

public float getMaximumSpan (int axis)

Determines the maximum span for this view along an axis. For certain components, the maximum and preferred span are the same. For others this will return the value returned by Component.getMaximumSize along the axis of interest.

Parameters
axis may be either View.X_AXIS or View.Y_AXIS
Returns
  • the span the view would like to be rendered into >= 0. Typically the view is told to render into the span that is returned, although there is no guarantee. The parent may choose to resize or break the view.
Throws
IllegalArgumentException for an invalid axis

Protected Methods

protected Component createComponent ()

Create the component. This is basically a big switch statement based upon the tag type and html attributes of the associated element.

protected void imageSubmit (String imageData)

This method is called to submit a form in response to a click on an image -- an <INPUT> form element of type "image".

Parameters
imageData the mouse click coordinates.

protected void submitData (String data)

This method is responsible for submitting the form data. A thread is forked to undertake the submission.