BasicTreeUI.FocusHandler (Java SE 9 & JDK 9 )
Keywords: javax.swing.plaf.basic.BasicTreeUI.FocusHandler class

Module java.desktop
Package javax.swing.plaf.basic

## Class BasicTreeUI.FocusHandler

- java.lang.Object
- - javax.swing.plaf.basic.BasicTreeUI.FocusHandler

- All Implemented Interfaces:
    `FocusListener`, `EventListener`
  Enclosing class:
    BasicTreeUI

      public class BasicTreeUI.FocusHandler
      extends Object
      implements FocusListener

  Repaints the lead selection row when focus is lost/gained.

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `FocusHandler​()` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `focusGained​(FocusEvent e)` | Invoked when focus is activated on the tree we're in, redraws the lead row.
    `void` | `focusLost​(FocusEvent e)` | Invoked when focus is activated on the tree we're in, redraws the lead row.

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### FocusHandler

          public FocusHandler​()

  - ### Method Detail

    - #### focusGained

          public void focusGained​(FocusEvent e)

      Invoked when focus is activated on the tree we're in, redraws the lead row.
      Specified by:
        `focusGained` in interface `FocusListener`
      Parameters:
        `e` - the event to be processed

    - #### focusLost

          public void focusLost​(FocusEvent e)

      Invoked when focus is activated on the tree we're in, redraws the lead row.
      Specified by:
        `focusLost` in interface `FocusListener`
      Parameters:
        `e` - the event to be processed