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use cursive::align::HAlign;
use cursive::event::EventResult;
use cursive::traits::*;
use cursive::views::{Dialog, OnEventView, SelectView, TextView};
use cursive::Cursive;
// We'll use a SelectView here.
//
// A SelectView is a scrollable list of items, from which the user can select
// one.
fn main() {
let mut select = SelectView::new()
// Center the text horizontally
.h_align(HAlign::Center)
// Use keyboard to jump to the pressed letters
.autojump();
// Read the list of cities from separate file, and fill the view with it.
// (We include the file at compile-time to avoid runtime read errors.)
let content = include_str!("assets/cities.txt");
select.add_all_str(content.lines());
// Sets the callback for when "Enter" is pressed.
select.set_on_submit(show_next_window);
// Let's override the `j` and `k` keys for navigation
let select = OnEventView::new(select)
.on_pre_event_inner('k', |s, _| {
let cb = s.select_up(1);
Some(EventResult::Consumed(Some(cb)))
})
.on_pre_event_inner('j', |s, _| {
let cb = s.select_down(1);
Some(EventResult::Consumed(Some(cb)))
});
let mut siv = cursive::default();
// Let's add a ResizedView to keep the list at a reasonable size
// (it can scroll anyway).
siv.add_layer(
Dialog::around(select.scrollable().fixed_size((20, 10)))
.title("Where are you from?"),
);
siv.run();
}
// Let's put the callback in a separate function to keep it clean,
// but it's not required.
fn show_next_window(siv: &mut Cursive, city: &str) {
siv.pop_layer();
let text = format!("{} is a great city!", city);
siv.add_layer(
Dialog::around(TextView::new(text)).button("Quit", |s| s.quit()),
);
}