1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
// Take a look at the license at the top of the repository in the LICENSE file.
use crate::prelude::*;
use crate::NativeDialog;
use crate::ResponseType;
use std::cell::Cell;
use std::future::Future;
use std::pin::Pin;
pub trait NativeDialogExtManual: IsA<NativeDialog> {
// rustdoc-stripper-ignore-next
/// Shows the dialog and returns a `Future` that resolves to the
/// `ResponseType` on response.
///
/// ```no_run
/// use gtk::prelude::*;
///
/// # async fn run() {
/// let dialog = gtk::FileChooserNative::builder()
/// .title("Select a File")
/// .build();
///
/// dialog.run_future().await;
/// println!("Selected file: {:?}", dialog.file());
/// dialog.destroy();
/// # }
/// ```
fn run_future<'a>(&'a self) -> Pin<Box<dyn Future<Output = ResponseType> + 'a>> {
Box::pin(async move {
let (sender, receiver) = futures_channel::oneshot::channel();
let sender = Cell::new(Some(sender));
let response_handler = self.connect_response(move |_, response_type| {
if let Some(m) = sender.replace(None) {
let _result = m.send(response_type);
}
});
self.show();
if let Ok(response) = receiver.await {
if response != ResponseType::DeleteEvent {
self.disconnect(response_handler);
}
response
} else {
ResponseType::None
}
})
}
}
impl<O: IsA<NativeDialog>> NativeDialogExtManual for O {}