MnemonicHandler

java.lang.Object
- com.formdev.flatlaf.MnemonicHandler

All Implemented Interfaces:

java.awt.KeyEventPostProcessor, java.util.EventListener, javax.swing.event.ChangeListener
```
class MnemonicHandler
extends java.lang.Object
implements java.awt.KeyEventPostProcessor, javax.swing.event.ChangeListener
```
Show/hide mnemonics.

Field Summary

Fields
Modifier and Type	Field	Description
`private static int`	`altPressedEventCount`
`private static java.lang.ref.WeakReference<java.awt.Window>`	`lastShowMnemonicWindow`
`private static boolean`	`selectMenuOnAltReleased`
`private static boolean`	`showMnemonics`
`private static java.awt.event.WindowListener`	`windowListener`

Constructor Summary

Constructors
Constructor Description

MnemonicHandler()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private static boolean`	`hasMnemonic(java.awt.Component c)`
`(package private) void`	`install()`
`(package private) static boolean`	`isShowMnemonics()`
`boolean`	`postProcessKeyEvent(java.awt.event.KeyEvent e)`
`private boolean`	`processKeyEventOnWindows(java.awt.event.KeyEvent e)`	Special Alt key behavior on Windows.
`private static void`	`repaintMnemonics(java.awt.Container container)`
`private boolean`	`shouldShowMnemonics(java.awt.event.KeyEvent e)`
`(package private) static void`	`showMnemonics(boolean show, java.awt.Component c)`
`void`	`stateChanged(javax.swing.event.ChangeEvent e)`
`(package private) void`	`uninstall()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

showMnemonics
```
private static boolean showMnemonics
```

lastShowMnemonicWindow

private static java.lang.ref.WeakReference<java.awt.Window> lastShowMnemonicWindow

windowListener

private static java.awt.event.WindowListener windowListener

altPressedEventCount

private static int altPressedEventCount

selectMenuOnAltReleased

private static boolean selectMenuOnAltReleased

Constructor Detail
- MnemonicHandler
```
MnemonicHandler()
```

Method Detail
- isShowMnemonics
```
static boolean isShowMnemonics()
```
- install
```
void install()
```
- uninstall
```
void uninstall()
```
- postProcessKeyEvent
```
public boolean postProcessKeyEvent(java.awt.event.KeyEvent e)
```
  Specified by:
  
  postProcessKeyEvent in interface java.awt.KeyEventPostProcessor
- shouldShowMnemonics
```
private boolean shouldShowMnemonics(java.awt.event.KeyEvent e)
```
- processKeyEventOnWindows
```
private boolean processKeyEventOnWindows(java.awt.event.KeyEvent e)
```
  Special Alt key behavior on Windows. Press-and-release Alt key selects first menu (if available) and moves focus temporary to menu bar. If menu bar has focus (some menu is selected), pressing Alt key unselects menu and moves focus back to permanent focus owner.
- stateChanged
```
public void stateChanged(javax.swing.event.ChangeEvent e)
```
  Specified by:
  
  stateChanged in interface javax.swing.event.ChangeListener
- showMnemonics
```
static void showMnemonics(boolean show,
                          java.awt.Component c)
```
- repaintMnemonics
```
private static void repaintMnemonics(java.awt.Container container)
```
- hasMnemonic
```
private static boolean hasMnemonic(java.awt.Component c)
```