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gtk/
switch.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use crate::Switch;
4use glib::object::{Cast, IsA};
5use glib::signal::{connect_raw, SignalHandlerId};
6use glib::translate::*;
7use std::boxed::Box as Box_;
8use std::mem::transmute;
9
10mod sealed {
11    pub trait Sealed {}
12    impl<T: glib::IsA<crate::Switch>> Sealed for T {}
13}
14
15pub trait SwitchExtManual: IsA<Switch> + sealed::Sealed + 'static {
16    fn connect_changed_active<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
17        unsafe extern "C" fn changed_active_trampoline<T, F: Fn(&T) + 'static>(
18            this: *mut ffi::GtkSwitch,
19            _gparamspec: glib::ffi::gpointer,
20            f: glib::ffi::gpointer,
21        ) where
22            T: IsA<Switch>,
23        {
24            let f: &F = &*(f as *const F);
25            f(Switch::from_glib_borrow(this).unsafe_cast_ref())
26        }
27        unsafe {
28            let f: Box_<F> = Box_::new(f);
29            connect_raw(
30                self.to_glib_none().0 as *mut _,
31                b"notify::active\0".as_ptr() as *mut _,
32                Some(transmute::<_, unsafe extern "C" fn()>(
33                    changed_active_trampoline::<Self, F> as *const (),
34                )),
35                Box_::into_raw(f),
36            )
37        }
38    }
39}
40
41impl<O: IsA<Switch>> SwitchExtManual for O {}