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}