gtk4/subclass/
recent_manager.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3// rustdoc-stripper-ignore-next
4//! Traits intended for subclassing [`RecentManager`](crate::RecentManager).
5
6use glib::translate::*;
7
8use crate::{ffi, prelude::*, subclass::prelude::*, RecentManager};
9
10pub trait RecentManagerImpl: RecentManagerImplExt + ObjectImpl {
11    fn changed(&self) {
12        self.parent_changed()
13    }
14}
15
16mod sealed {
17    pub trait Sealed {}
18    impl<T: super::RecentManagerImplExt> Sealed for T {}
19}
20pub trait RecentManagerImplExt: sealed::Sealed + ObjectSubclass {
21    fn parent_changed(&self) {
22        unsafe {
23            let data = Self::type_data();
24            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkRecentManagerClass;
25            if let Some(f) = (*parent_class).changed {
26                f(self
27                    .obj()
28                    .unsafe_cast_ref::<RecentManager>()
29                    .to_glib_none()
30                    .0)
31            }
32        }
33    }
34}
35
36impl<T: RecentManagerImpl> RecentManagerImplExt for T {}
37
38unsafe impl<T: RecentManagerImpl> IsSubclassable<T> for RecentManager {
39    fn class_init(class: &mut glib::Class<Self>) {
40        Self::parent_class_init::<T>(class);
41
42        assert_initialized_main_thread!();
43
44        let klass = class.as_mut();
45        klass.changed = Some(recent_manager_changed::<T>);
46    }
47}
48
49unsafe extern "C" fn recent_manager_changed<T: RecentManagerImpl>(ptr: *mut ffi::GtkRecentManager) {
50    let instance = &*(ptr as *mut T::Instance);
51    let imp = instance.imp();
52
53    imp.changed()
54}