Cursor disappears when using SIGINT (ctrl-c).

[mainrs]

I use this crate over at https://github.com/SirWindfield/git-cm and a user opened an issue stating that after they press ctrl-c, their cursor disappears:

mainrs/git-cm#40

I think this is a bug/oversight inside of dialoguer or console and not my crate to be honest 🤔

[s2terminal]

I just have the same problem. This is reproduct code. (dialoguer = "0.6.2")

fn main() {
    if Confirm::new().with_prompt("Do you want to continue?").interact().unwrap() {
        println!("Looks like you want to continue");
    } else {
        println!("nevermind then :(");
    }
}

[jgilchrist]

@sirwindfield @s2terminal At the moment I'm working around this with a combination of the ctrlc and console crates:

ctrlc::set_handler(move || {
    let term = console::Term::stdout();
    let _ = term.show_cursor();
})?;

[pksunkara]

This is intentional. Ctrl-c and other stuff are not supposed to be handled by dialoguer when prompting.

[mainrs]

Fair enough. I was pretty sure that dialoguer did actually use ctrl-c handling but after checking the crates it seems that I was wrong :)

I'll close this then.

[Ekleog]

@sirwindfield Maybe it'd make sense to reopen this as a documentation issue to let people know of this limitation? IMO this should be documented in the front page of dialoguer. I recently hit it too with Ekleog/nixpkgs-check#20

[mainrs]

No need to re-open. Documentation only changes are probably fine with a PR only :)

_{I mean technically this issue is resolved. But I do agree that a notice inside the docs/readme would be good!}

[chenyan2002]

This is intentional. Ctrl-c and other stuff are not supposed to be handled by dialoguer when prompting.

@pksunkara I understand dialoguer doesn't want to insert any signal handler. But would it be cleaner to intercept Ctrl+C here: https://github.com/console-rs/dialoguer/blob/master/src/prompts/select.rs#L236?

dialoguer sets term.hide_cursor() at the beginning, it makes sense to restore the cursor up on seeing ctrl+c.