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/OpenJDK 21

Class BasicTreeUI.KeyHandler

java.lang.Object
java.awt.event.KeyAdapter
javax.swing.plaf.basic.BasicTreeUI.KeyHandler
All Implemented Interfaces:
KeyListener, EventListener
Enclosing class:
BasicTreeUI
public class BasicTreeUI.KeyHandler extends KeyAdapter
This is used to get multiple key down events to appropriately generate events.

Field Summary

Modifier and Type Field Description
protected boolean isKeyDown
Set to true while keyPressed is active.
protected Action repeatKeyAction
Key code that is being generated for.

Constructor Summary

Constructor Description
KeyHandler()
Constructs a KeyHandler.

Method Summary

Modifier and Type Method Description
void keyTyped(KeyEvent e)
Invoked when a key has been typed.

Methods declared in class java.awt.event.KeyAdapter

keyPressed, keyReleased

Methods declared in class java.lang.Object

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

Field Details

repeatKeyAction

protected Action repeatKeyAction
Key code that is being generated for.

isKeyDown

protected boolean isKeyDown
Set to true while keyPressed is active.

Constructor Details

KeyHandler

public KeyHandler()
Constructs a KeyHandler.

Method Details

keyTyped

public void keyTyped(KeyEvent e)
Invoked when a key has been typed. Moves the keyboard focus to the first element whose first letter matches the alphanumeric key pressed by the user. Subsequent same key presses move the keyboard focus to the next object that starts with the same letter.
Specified by:
keyTyped in interface KeyListener
Overrides:
keyTyped in class KeyAdapter
Parameters:
e - the event to be processed

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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/javax/swing/plaf/basic/BasicTreeUI.KeyHandler.html