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::{Actionable, ToggleButton, ffi, prelude::*, subclass::prelude::*};
9
10pub trait ToggleButtonImpl:
11    ButtonImpl + ObjectSubclass<Type: IsA<ToggleButton> + IsA<Actionable>>
12{
13    /// Emits the ::toggled signal on the [`ToggleButton`][crate::ToggleButton].
14    ///
15    /// # Deprecated since 4.10
16    ///
17    /// There is no good reason for an application ever to call this function.
18    fn toggled(&self) {
19        self.parent_toggled()
20    }
21}
22
23pub trait ToggleButtonImplExt: ToggleButtonImpl {
24    fn parent_toggled(&self) {
25        unsafe {
26            let data = Self::type_data();
27            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkToggleButtonClass;
28            if let Some(f) = (*parent_class).toggled {
29                f(self
30                    .obj()
31                    .unsafe_cast_ref::<ToggleButton>()
32                    .to_glib_none()
33                    .0)
34            }
35        }
36    }
37}
38
39impl<T: ToggleButtonImpl> ToggleButtonImplExt for T {}
40
41unsafe impl<T: ToggleButtonImpl> IsSubclassable<T> for ToggleButton {
42    fn class_init(class: &mut glib::Class<Self>) {
43        Self::parent_class_init::<T>(class);
44
45        let klass = class.as_mut();
46        klass.toggled = Some(toggle_button_toggled::<T>);
47    }
48}
49
50unsafe extern "C" fn toggle_button_toggled<T: ToggleButtonImpl>(ptr: *mut ffi::GtkToggleButton) {
51    unsafe {
52        let instance = &*(ptr as *mut T::Instance);
53        let imp = instance.imp();
54
55        imp.toggled()
56    }
57}
gtk4/subclass/toggle_button.rs

gtk4/subclass/
toggle_button.rs
