A simple combo box autocomplete. It does not support space - it is easy to implement, probably consume the scene key event and update the filter - if you do this, send a PR
For more information see:
Portuguese: http://aprendendo-javafx.blogspot.com.br/2016/03/completar-automaticamente-combobox.html
English: http://fxapps.blogspot.com.br/2016/03/simplest-javafx-combobox-autocomplete.html
How it looks like:
