Interface FieldEvents.FocusNotifier

All Superinterfaces:

Serializable

All Known Implementing Classes:

AbstractTextField, Accordion, Button, CheckBox, ComboBox, DateField, InlineDateField, NativeButton, OptionGroup, PasswordField, PopupDateField, Select, TabSheet, TextArea, TextField, Window

Enclosing interface:

FieldEvents

public static interface FieldEvents.FocusNotifier
extends Serializable

The interface for adding and removing FocusEvent listeners. By implementing this interface a class explicitly announces that it will generate a FocusEvent when it receives keyboard focus.

Note: The general Java convention is not to explicitly declare that a class generates events, but to directly define the addListener and removeListener methods. That way the caller of these methods has no real way of finding out if the class really will send the events, or if it just defines the methods to be able to implement an interface.

Since:

6.2

See Also:

FieldEvents.FocusListener, FieldEvents.FocusEvent

addListener

void addListener(FieldEvents.FocusListener listener)

Adds a FocusListener to the Component which gets fired when a Field receives keyboard focus.

Parameters:

listener -

Since:

6.2

See Also:

FieldEvents.FocusListener

removeListener

void removeListener(FieldEvents.FocusListener listener)

Removes a FocusListener from the Component.

Parameters:

listener -

Since:

6.2

See Also:

FieldEvents.FocusListener