gtk4/subclass/
check_button.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 [`CheckButton`](crate::CheckButton).
5
6use glib::translate::*;
7
8use crate::{ffi, prelude::*, subclass::prelude::*, CheckButton};
9
10pub trait CheckButtonImpl: CheckButtonImplExt + WidgetImpl {
11    fn toggled(&self) {
12        self.parent_toggled()
13    }
14
15    #[cfg(feature = "v4_2")]
16    #[cfg_attr(docsrs, doc(cfg(feature = "v4_2")))]
17    fn activate(&self) {
18        self.parent_activate()
19    }
20}
21
22mod sealed {
23    pub trait Sealed {}
24    impl<T: super::CheckButtonImplExt> Sealed for T {}
25}
26
27pub trait CheckButtonImplExt: sealed::Sealed + ObjectSubclass {
28    fn parent_toggled(&self) {
29        unsafe {
30            let data = Self::type_data();
31            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkCheckButtonClass;
32            if let Some(f) = (*parent_class).toggled {
33                f(self.obj().unsafe_cast_ref::<CheckButton>().to_glib_none().0)
34            }
35        }
36    }
37
38    #[cfg(feature = "v4_2")]
39    #[cfg_attr(docsrs, doc(cfg(feature = "v4_2")))]
40    fn parent_activate(&self) {
41        unsafe {
42            let data = Self::type_data();
43            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkCheckButtonClass;
44            if let Some(f) = (*parent_class).activate {
45                f(self.obj().unsafe_cast_ref::<CheckButton>().to_glib_none().0)
46            }
47        }
48    }
49}
50
51impl<T: CheckButtonImpl> CheckButtonImplExt for T {}
52
53unsafe impl<T: CheckButtonImpl> IsSubclassable<T> for CheckButton {
54    fn class_init(class: &mut glib::Class<Self>) {
55        Self::parent_class_init::<T>(class);
56
57        let klass = class.as_mut();
58        klass.toggled = Some(check_button_toggled::<T>);
59
60        #[cfg(feature = "v4_2")]
61        #[cfg_attr(docsrs, doc(cfg(feature = "v4_2")))]
62        {
63            klass.activate = Some(check_button_activate::<T>);
64        };
65    }
66}
67
68unsafe extern "C" fn check_button_toggled<T: CheckButtonImpl>(ptr: *mut ffi::GtkCheckButton) {
69    let instance = &*(ptr as *mut T::Instance);
70    let imp = instance.imp();
71
72    imp.toggled()
73}
74
75#[cfg(feature = "v4_2")]
76#[cfg_attr(docsrs, doc(cfg(feature = "v4_2")))]
77unsafe extern "C" fn check_button_activate<T: CheckButtonImpl>(ptr: *mut ffi::GtkCheckButton) {
78    let instance = &*(ptr as *mut T::Instance);
79    let imp = instance.imp();
80
81    imp.activate()
82}