gtk4/
shortcuts_section.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use std::mem::transmute;
4
5use glib::{
6    signal::{connect_raw, SignalHandlerId},
7    translate::*,
8};
9
10use crate::{ffi, prelude::*, ShortcutsSection};
11
12impl ShortcutsSection {
13    // todo: figure out what the bool return value here corresponds to
14    pub fn connect_change_current_page<F: Fn(&ShortcutsSection, i32) -> bool + 'static>(
15        &self,
16        f: F,
17    ) -> SignalHandlerId {
18        unsafe {
19            unsafe extern "C" fn change_current_page_trampoline<
20                F: Fn(&ShortcutsSection, i32) -> bool + 'static,
21            >(
22                this: *mut ffi::GtkShortcutsSection,
23                object: libc::c_int,
24                f: glib::ffi::gpointer,
25            ) -> glib::ffi::gboolean {
26                let f: &F = &*(f as *const F);
27                f(&from_glib_borrow(this), object).into_glib()
28            }
29            let f = Box::new(f);
30            connect_raw(
31                self.as_ptr() as *mut _,
32                c"change-current-page".as_ptr() as *const _,
33                Some(transmute::<usize, unsafe extern "C" fn()>(
34                    change_current_page_trampoline::<F> as usize,
35                )),
36                Box::into_raw(f),
37            )
38        }
39    }
40
41    pub fn emit_change_current_page(&self, object: i32) -> bool {
42        self.emit_by_name("change-current-page", &[&object])
43    }
44}
gtk4/shortcuts_section.rs

gtk4/
shortcuts_section.rs
