gtk4/subclass/
popover.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 [`Popover`](crate::Popover).
5
6use glib::translate::*;
7
8use crate::{ffi, prelude::*, subclass::prelude::*, Popover};
9
10pub trait PopoverImpl: PopoverImplExt + WidgetImpl {
11    fn activate_default(&self) {
12        self.parent_activate_default()
13    }
14
15    fn closed(&self) {
16        self.parent_closed()
17    }
18}
19
20mod sealed {
21    pub trait Sealed {}
22    impl<T: super::PopoverImplExt> Sealed for T {}
23}
24
25pub trait PopoverImplExt: sealed::Sealed + ObjectSubclass {
26    fn parent_activate_default(&self) {
27        unsafe {
28            let data = Self::type_data();
29            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkPopoverClass;
30            if let Some(f) = (*parent_class).activate_default {
31                f(self.obj().unsafe_cast_ref::<Popover>().to_glib_none().0)
32            }
33        }
34    }
35
36    fn parent_closed(&self) {
37        unsafe {
38            let data = Self::type_data();
39            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkPopoverClass;
40            if let Some(f) = (*parent_class).closed {
41                f(self.obj().unsafe_cast_ref::<Popover>().to_glib_none().0)
42            }
43        }
44    }
45}
46
47impl<T: PopoverImpl> PopoverImplExt for T {}
48
49unsafe impl<T: PopoverImpl> IsSubclassable<T> for Popover {
50    fn class_init(class: &mut glib::Class<Self>) {
51        Self::parent_class_init::<T>(class);
52
53        let klass = class.as_mut();
54        klass.activate_default = Some(popover_activate_default::<T>);
55        klass.closed = Some(popover_closed::<T>);
56    }
57}
58
59unsafe extern "C" fn popover_activate_default<T: PopoverImpl>(ptr: *mut ffi::GtkPopover) {
60    let instance = &*(ptr as *mut T::Instance);
61    let imp = instance.imp();
62
63    imp.activate_default()
64}
65
66unsafe extern "C" fn popover_closed<T: PopoverImpl>(ptr: *mut ffi::GtkPopover) {
67    let instance = &*(ptr as *mut T::Instance);
68    let imp = instance.imp();
69
70    imp.closed()
71}
gtk4/subclass/popover.rs

gtk4/subclass/
popover.rs
