gtk4/
application.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use std::{cell::RefCell, rc::Rc};
4
5use gio::ApplicationFlags;
6use glib::{signal::SignalHandlerId, translate::*};
7
8use crate::{prelude::*, rt, Application};
9
10impl Application {
11    #[doc(alias = "gtk_application_new")]
12    pub fn new(application_id: impl IntoOptionalGStr, flags: ApplicationFlags) -> Self {
13        skip_assert_initialized!();
14        let app: Application = unsafe {
15            application_id.run_with_gstr(|application_id| {
16                from_glib_full(crate::ffi::gtk_application_new(
17                    application_id.to_glib_none().0,
18                    flags.into_glib(),
19                ))
20            })
21        };
22        Self::register_startup_hook(&app);
23        app
24    }
25
26    pub(crate) fn register_startup_hook(app: &Application) {
27        skip_assert_initialized!();
28        let signalid: Rc<RefCell<Option<SignalHandlerId>>> = Rc::new(RefCell::new(None));
29        {
30            let signalid_ = signalid.clone();
31
32            let id = app.connect_startup(move |app| {
33                app.disconnect(
34                    signalid_
35                        .borrow_mut()
36                        .take()
37                        .expect("Signal ID went missing"),
38                );
39                unsafe { rt::set_initialized() }
40            });
41            *signalid.borrow_mut() = Some(id);
42        }
43    }
44}
45
46impl Default for Application {
47    fn default() -> Self {
48        let app = glib::object::Object::new::<Self>();
49        Self::register_startup_hook(&app);
50        app
51    }
52}