Macro cursive_extras::report_error

macro_rules! report_error {
    ($status_view:expr, $res_val:expr) => { ... };
}

Convenience macro that updates the specified StatusView reference with an error message and returns from the current callback if an error happens, returns the Ok value otherwise

Example

let mut root = cursive::default();
root.add_fullscreen_layer(
    hlayout!(
        Dialog::text("Yes")
            .button("Quit", |r| r.quit())
            .title("Error Reporting example")
        StatusView::new().with_name("status")
    )
);
root.set_fps(30);
root.set_global_callback(Event::Refresh, |root| {
    let error: Result<&str, &str> = Err("Error: Houston, we have a problem!");
    let mut status = root.find_name::<StatusView>("status").expect("StatusView does not exist!");
    report_error!(status, error);
    status.update();
});
root.run();