@Override
        public void focusGained(FocusEvent e) {
          //do not select all on OSX after suggestion is selected
          if (e.getOppositeComponent() == null) {
            clearTextFieldSelectionAsync(textComponent);
          }
        }
Add popup with suggestion to text component
@param textComponent  text component
@param suggestionSource source of suggestions
@param suggestionRenderer renderer for suggestions
@param selectionListener suggestion listener to be executed after suggestion is selected
@param clearFocusAfterSelection true if text selection should be removed and caret set to end of text after selecting suggestion
@param <T> Suggestion type
olv-gui/src/main/java/pl/otros/swing/suggest/SuggestDecorator.java