Implementation would usually check blocksInput and call focusIO.focus on self for this to take effect.
A node may override this method to redirect the focus to another node (by calling its focus() method),
or ignore the request.
Focus should do nothing if the node isDisabled is true or if
Set focus to this node.
Implementation would usually check blocksInput and call focusIO.focus on self for this to take effect. A node may override this method to redirect the focus to another node (by calling its focus() method), or ignore the request.
Focus should do nothing if the node isDisabled is true or if