BasicPopupMenuUI (Java SE 12 & JDK 12 )

java.lang.Object
- javax.swing.plaf.ComponentUI
- - javax.swing.plaf.PopupMenuUI
  - - javax.swing.plaf.basic.BasicPopupMenuUI

Direct Known Subclasses:

SynthPopupMenuUI
```
public class BasicPopupMenuUI
extends PopupMenuUI
```
A Windows L&F implementation of PopupMenuUI. This implementation is a "combined" view/controller.

Field Summary

Fields
Modifier and Type Field Description

protected JPopupMenu popupMenu
The instance of JPopupMenu.

Constructor Summary

Constructors
Constructor Description

BasicPopupMenuUI()
Constructs a new instance of BasicPopupMenuUI.

Method Summary

Modifier and Type	Method	Description
`static ComponentUI`	`createUI(JComponent x)`	Constructs a new instance of `BasicPopupMenuUI`.
`void`	`installDefaults()`	Installs default properties.
`protected void`	`installKeyboardActions()`	Registers keyboard actions.
`protected void`	`installListeners()`	Registers listeners.
`protected void`	`uninstallDefaults()`	Uninstalls default properties.
`protected void`	`uninstallKeyboardActions()`	Unregisters keyboard actions.
`protected void`	`uninstallListeners()`	Unregisters listeners.

Methods declared in class javax.swing.plaf.PopupMenuUI
getPopup, isPopupTrigger

Methods declared in class javax.swing.plaf.ComponentUI
contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMaximumSize, getMinimumSize, getPreferredSize, installUI, paint, uninstallUI, update

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

- Field Detail
  - popupMenu
```
protected JPopupMenu popupMenu
```
    The instance of JPopupMenu.
- Constructor Detail
  - BasicPopupMenuUI
```
public BasicPopupMenuUI()
```
    Constructs a new instance of BasicPopupMenuUI.
- Method Detail
  - createUI
```
public static ComponentUI createUI(JComponent x)
```
    Constructs a new instance of BasicPopupMenuUI.
    
    Parameters:
    
    x - a component
    
    Returns:
    
    a new instance of BasicPopupMenuUI
  - installDefaults
```
public void installDefaults()
```
    Installs default properties.
  - installListeners
```
protected void installListeners()
```
    Registers listeners.
  - installKeyboardActions
```
protected void installKeyboardActions()
```
    Registers keyboard actions.
  - uninstallDefaults
```
protected void uninstallDefaults()
```
    Uninstalls default properties.
  - uninstallListeners
```
protected void uninstallListeners()
```
    Unregisters listeners.
  - uninstallKeyboardActions
```
protected void uninstallKeyboardActions()
```
    Unregisters keyboard actions.