Focusable GetNextFocusable(Focusable currentFocusable, FocusChangeDirection direction)

Focusable

FocusChangeDirection

For example, in a VisualElementFocusRing, the next element in the _right by default is the element to the right of the current element. More precisely, the next element is the focusable element whose _tabIndex is the closest to the current element in increasing order. If no such element is found, the process wraps around and continues looking for a focusable element starting at tabIndex=0 and proceeding in increasing order.

When the EventDispatcher processes navigation and pointer events, it automatically calls this method to generate Focus events.

The Focus event's _target matches the value returned by this method to generate it.