Module java.desktop
Package java.awt.event

Enum Class FocusEvent.Cause

java.lang.Object
java.lang.Enum<FocusEvent.Cause>
java.awt.event.FocusEvent.Cause
All Implemented Interfaces:
Serializable, Comparable<FocusEvent.Cause>, Constable
Enclosing class:
FocusEvent
public static enum FocusEvent.Cause extends Enum<FocusEvent.Cause>
This enum represents the cause of a FocusEvent- the reason why it occurred. Possible reasons include mouse events, keyboard focus traversal, window activation. If no cause is provided then the reason is UNKNOWN.
Since:
9

  • Enum Constant Details

    • UNKNOWN

      public static final FocusEvent.Cause UNKNOWN
      The default value.

    • MOUSE_EVENT

      public static final FocusEvent.Cause MOUSE_EVENT
      An activating mouse event.

    • TRAVERSAL

      public static final FocusEvent.Cause TRAVERSAL
      A focus traversal action with unspecified direction.

    • TRAVERSAL_UP

      public static final FocusEvent.Cause TRAVERSAL_UP
      An up-cycle focus traversal action.

    • TRAVERSAL_DOWN

      public static final FocusEvent.Cause TRAVERSAL_DOWN
      A down-cycle focus traversal action.

    • TRAVERSAL_FORWARD

      public static final FocusEvent.Cause TRAVERSAL_FORWARD
      A forward focus traversal action.

    • TRAVERSAL_BACKWARD

      public static final FocusEvent.Cause TRAVERSAL_BACKWARD
      A backward focus traversal action.

    • ROLLBACK

      public static final FocusEvent.Cause ROLLBACK
      Restoring focus after a focus request has been rejected.

    • UNEXPECTED

      public static final FocusEvent.Cause UNEXPECTED
      A system action causing an unexpected focus change.

    • ACTIVATION

      public static final FocusEvent.Cause ACTIVATION
      An activation of a toplevel window.

    • CLEAR_GLOBAL_FOCUS_OWNER

      public static final FocusEvent.Cause CLEAR_GLOBAL_FOCUS_OWNER
      Clearing global focus owner.

  • Method Details

    • values

      public static FocusEvent.Cause[] values()
      Returns an array containing the constants of this enum class, in the order they are declared.
      Returns:
      an array containing the constants of this enum class, in the order they are declared

    • valueOf

      public static FocusEvent.Cause valueOf(String name)
      Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)
      Parameters:
      name - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      IllegalArgumentException - if this enum class has no constant with the specified name
      NullPointerException - if the argument is null