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()
    Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
    boolean
    equals(Object o)
    Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    May cause performance issues, deadlocks and hangs.
    final Class<? extends Object>
    getClass()
    Answers the unique instance of java.lang.Class which represents the class of the receiver.
    int
    hashCode()
    Answers an integer hash code for the receiver.
    final void
    notify()
    Causes one thread which is waiting on the receiver to be made ready to run.
    final void
    notifyAll()
    Causes all threads which are waiting on the receiver to be made ready to run.
    String
    toString()
    Answers a string containing a concise, human-readable description of the receiver.
    final void
    wait()
    Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
    final void
    wait(long time)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
    final void
    wait(long time, int frac)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

  • 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