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gtk4/
editable_label.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use std::{boxed::Box as Box_, mem::transmute};
4
5use glib::{
6    signal::{SignalHandlerId, connect_raw},
7    translate::*,
8};
9
10use crate::{EditableLabel, ffi, prelude::*};
11
12impl EditableLabel {
13    #[doc(alias = "editing")]
14    pub fn connect_editing_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
15        unsafe extern "C" fn notify_editing_trampoline<F: Fn(&EditableLabel) + 'static>(
16            this: *mut ffi::GtkEditableLabel,
17            _param_spec: glib::ffi::gpointer,
18            f: glib::ffi::gpointer,
19        ) {
20            unsafe {
21                let f: &F = &*(f as *const F);
22                f(&from_glib_borrow(this))
23            }
24        }
25        unsafe {
26            let f: Box_<F> = Box_::new(f);
27            connect_raw(
28                self.as_ptr() as *mut _,
29                c"notify::editing".as_ptr() as *const _,
30                Some(transmute::<*const (), unsafe extern "C" fn()>(
31                    notify_editing_trampoline::<F> as *const (),
32                )),
33                Box_::into_raw(f),
34            )
35        }
36    }
37}