Prevent PySimpleGUI InputText event from executing while element is disabled when using FocusIn bind?

Question

My GUI has an InputText box with default text that is to be cleared upon focus; however, the InputText is disabled until a ListBox selection is made. Even if a ListBox selection has not been made and the InputText box is disabled, the default text will still be cleared if the InputText box is clicked. Is there a way to prevent this? Or to check if the InputText is disabled when clicked?

Sample Code:

import PySimpleGUI as sg

def main():
    layout = [[sg.Input("Search", s=(30,1), disabled=True, k="-SEARCH-")],
              [sg.Listbox(values=["One", "Two", "Three"], s=(30,5), k='-LIST-', enable_events=True)]]

    window = sg.Window("Test", layout, use_default_focus=False, finalize=True)
    window['-SEARCH-'].bind('<FocusIn>', '_Focus')

    while True:
        event, values = window.read()
        if event == sg.WIN_CLOSED or event == 'Cancel':
            break
        if event == '-LIST-':
            window['-SEARCH-'].Update(disabled=False)
        if event == '-SEARCH-' + "_Focus":
            window['-SEARCH-'].Update("")
            window.refresh()

    window.close()

if __name__ == "__main__":
    main()

Answer 1

Per Jason Yang's comment, the solution was to simply add the following to my Input declaration:

use_readonly_for_disable=False

Such that:

layout = [[sg.Input("Search", s=(30,1), disabled=True, use_readonly_for_disable=False, k="-SEARCH-")],
          [sg.Listbox(values=["One", "Two", "Three"], s=(30,5), k='-LIST-', enable_events=True)]]