Module java.desktop

Enum FocusEvent.Cause

  • All Implemented Interfaces:
    Serializable, Comparable<FocusEvent.Cause>
    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 Detail

      • 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 Detail

      • values

        public static FocusEvent.Cause[] values​()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
        for (FocusEvent.Cause c : FocusEvent.Cause.values())
            System.out.println(c);
        
        Returns:
        an array containing the constants of this enum type, in the order they are declared
      • valueOf

        public static FocusEvent.Cause valueOf​(String name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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 type has no constant with the specified name
        NullPointerException - if the argument is null