cursive/examples/edit.rs
2019-05-20 15:53:22 -07:00

62 lines
2.1 KiB
Rust

use cursive::traits::*;
use cursive::views::{Dialog, EditView, TextView};
use cursive::Cursive;
fn main() {
let mut siv = Cursive::default();
// Create a dialog with an edit text and a button.
// The user can either hit the <Ok> button,
// or press Enter on the edit text.
siv.add_layer(
Dialog::new()
.title("Enter your name")
// Padding is (left, right, top, bottom)
.padding((1, 1, 1, 0))
.content(
EditView::new()
// Call `show_popup` when the user presses `Enter`
.on_submit(show_popup)
// Give the `EditView` a name so we can refer to it later.
.with_id("name")
// Wrap this in a `BoxView` with a fixed width.
// Do this _after_ `with_id` or the name will point to the
// `BoxView` instead of `EditView`!
.fixed_width(20),
)
.button("Ok", |s| {
// This will run the given closure, *ONLY* if a view with the
// correct type and the given ID is found.
let name = s
.call_on_id("name", |view: &mut EditView| {
// We can return content from the closure!
view.get_content()
})
.unwrap();
// Run the next step
show_popup(s, &name);
}),
);
siv.run();
}
// This will replace the current layer with a new popup.
// If the name is empty, we'll show an error message instead.
fn show_popup(s: &mut Cursive, name: &str) {
if name.is_empty() {
// Try again as many times as we need!
s.add_layer(Dialog::info("Please enter a name!"));
} else {
let content = format!("Hello {}!", name);
// Remove the initial popup
s.pop_layer();
// And put a new one instead
s.add_layer(
Dialog::around(TextView::new(content))
.button("Quit", |s| s.quit()),
);
}
}