Function on_pre_access_text 

pub fn on_pre_access_text(
    child: impl IntoUiNode,
    handler: Box<dyn FnMut(&AccessTextArgs) -> HandlerResult + Send>,
) -> UiNode

Access requested a text input/replace.

Note that the text widget already handles this event.

Route

This event property uses the preview route, that is, the handler is called before the children widget handlers and before the $pn_ident handlers.