Controlling ListBox visibility from outside of the component

[cyoanton]

I am building a UI that requires the ability to open/close the ListBox programmatically from a different component. The documentation for ListBox has a section on controlling open/close states, but the solution it provides involves passing an open boolean argument to the ListBox child, which allows determining the open status, but not for changing it, as far as I can tell.

I tried to work around this by introducing my own open state variable, and using it to set the visibility CSS property of Listbox.Options, but this introduces a strange issue where the ListBox is sometimes not in focus when it is opened, and so the hover styling effects don't work. Is there any other way around this problem?