gtk4/subclass/
toggle_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 [`ToggleButton`].
5
6use glib::translate::*;
7
8use crate::{ffi, prelude::*, subclass::prelude::*, Actionable, ToggleButton};
9
10pub trait ToggleButtonImpl:
11    ButtonImpl + ObjectSubclass<Type: IsA<ToggleButton> + IsA<Actionable>>
12{
13    fn toggled(&self) {
14        self.parent_toggled()
15    }
16}
17
18pub trait ToggleButtonImplExt: ToggleButtonImpl {
19    fn parent_toggled(&self) {
20        unsafe {
21            let data = Self::type_data();
22            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkToggleButtonClass;
23            if let Some(f) = (*parent_class).toggled {
24                f(self
25                    .obj()
26                    .unsafe_cast_ref::<ToggleButton>()
27                    .to_glib_none()
28                    .0)
29            }
30        }
31    }
32}
33
34impl<T: ToggleButtonImpl> ToggleButtonImplExt for T {}
35
36unsafe impl<T: ToggleButtonImpl> IsSubclassable<T> for ToggleButton {
37    fn class_init(class: &mut glib::Class<Self>) {
38        Self::parent_class_init::<T>(class);
39
40        let klass = class.as_mut();
41        klass.toggled = Some(toggle_button_toggled::<T>);
42    }
43}
44
45unsafe extern "C" fn toggle_button_toggled<T: ToggleButtonImpl>(ptr: *mut ffi::GtkToggleButton) {
46    let instance = &*(ptr as *mut T::Instance);
47    let imp = instance.imp();
48
49    imp.toggled()
50}
gtk4/subclass/toggle_button.rs

gtk4/subclass/
toggle_button.rs
