Module java.desktop

Package javax.swing.text.html

Class FormView

java.lang.Object

javax.swing.text.View

javax.swing.text.ComponentView

javax.swing.text.html.FormView

All Implemented Interfaces:

ActionListener, EventListener, SwingConstants

public class FormView
extends ComponentView
implements ActionListener

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 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.

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

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	FormView.MouseEventListener	MouseEventListener class to handle form submissions when an input with type equal to image is clicked on.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	RESET	Deprecated. As of 1.3, value comes from UIManager UIManager property FormView.resetButtonText
static final String	SUBMIT	Deprecated. As of 1.3, value now comes from UIManager property FormView.submitButtonText

Fields declared in class javax.swing.text.View

BadBreakWeight, ExcellentBreakWeight, ForcedBreakWeight, GoodBreakWeight, X_AXIS, Y_AXIS

Fields declared in interface javax.swing.SwingConstants

BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST

Constructor Summary

Constructors

Constructor	Description
FormView(Element elem)	Creates a new FormView object.

Method Summary

Modifier and Type	Method	Description
void	actionPerformed(ActionEvent evt)	Responsible for processing the ActionEvent.
protected Component	createComponent()	Create the component.
float	getMaximumSpan(int axis)	Determines the maximum span for this view along an axis.
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".
protected void	submitData(String data)	This method is responsible for submitting the form data.

Methods declared in class javax.swing.text.ComponentView

getAlignment, getComponent, getMinimumSpan, getPreferredSpan, modelToView, paint, setParent, viewToModel

Methods declared in class javax.swing.text.View

append, breakView, changedUpdate, createFragment, forwardUpdate, forwardUpdateToView, getAttributes, getBreakWeight, getChildAllocation, getContainer, getDocument, getElement, getEndOffset, getGraphics, getNextVisualPositionFrom, getParent, getResizeWeight, getStartOffset, getToolTipText, getView, getViewCount, getViewFactory, getViewIndex, getViewIndex, insert, insertUpdate, isVisible, modelToView, modelToView, preferenceChanged, remove, removeAll, removeUpdate, replace, setSize, updateChildren, updateLayout, viewToModel

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

SUBMIT

@Deprecated
public static final String SUBMIT

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.

RESET

@Deprecated
public static final String RESET

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.

Constructor Details

FormView

public FormView(Element elem)

Creates a new FormView object.

Parameters:

elem - the element to decorate

Method Details

createComponent

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.

Overrides:

createComponent in class ComponentView

Returns:

the component that is associated with this view

getMaximumSpan

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.

Overrides:

getMaximumSpan in class ComponentView

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

See Also:

• View.getPreferredSpan(int)

actionPerformed

public void actionPerformed(ActionEvent evt)

Responsible for processing 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.

Specified by:

actionPerformed in interface ActionListener

Parameters:

evt - the ActionEvent.

submitData

protected void submitData(String data)

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

Parameters:

data - data to submit

imageSubmit

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.