Class BasicComboBoxUI.FocusHandler

java.lang.Object
javax.swing.plaf.basic.BasicComboBoxUI.FocusHandler
All Implemented Interfaces:
FocusListener, EventListener
Enclosing class:
BasicComboBoxUI
public class BasicComboBoxUI.FocusHandler extends Object implements FocusListener
This listener hides the popup when the focus is lost. It also repaints when focus is gained or lost. This public inner class should be treated as protected. Instantiate it only within subclasses of BasicComboBoxUI.

  • Constructor Summary

    Constructors
    Constructor
    Description
    FocusHandler()
    Constructs a FocusHandler.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    focusGained(FocusEvent e)
    Invoked when a component gains the keyboard focus.
    void
    focusLost(FocusEvent e)
    Invoked when a component loses the keyboard focus.

    Methods declared in class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Creates and returns a copy of this object.
    boolean
    equals(Object obj)
    Indicates whether some other object is "equal to" this one.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    Finalization is deprecated and subject to removal in a future release.
    final Class<?>
    getClass()
    Returns the runtime class of this Object.
    int
    hashCode()
    Returns a hash code value for this object.
    final void
    notify()
    Wakes up a single thread that is waiting on this object's monitor.
    final void
    notifyAll()
    Wakes up all threads that are waiting on this object's monitor.
    String
    toString()
    Returns a string representation of the object.
    final void
    wait()
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
    final void
    wait(long timeoutMillis)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
    final void
    wait(long timeoutMillis, int nanos)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

  • Constructor Details

    • FocusHandler

      public FocusHandler()
      Constructs a FocusHandler.

  • Method Details

    • focusGained

      public void focusGained(FocusEvent e)
      Description copied from interface: FocusListener
      Invoked when a component gains the keyboard focus.
      Specified by:
      focusGained in interface FocusListener
      Parameters:
      e - the event to be processed

    • focusLost

      public void focusLost(FocusEvent e)
      Description copied from interface: FocusListener
      Invoked when a component loses the keyboard focus.
      Specified by:
      focusLost in interface FocusListener
      Parameters:
      e - the event to be processed