gtk4/subclass/
entry.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 [`Entry`](crate::Entry).
5
6use glib::translate::*;
7
8use crate::{ffi, prelude::*, subclass::prelude::*, Entry};
9
10pub trait EntryImpl: EntryImplExt + WidgetImpl {
11    /// Class handler for the `GtkEntry::activate` signal. The default
12    ///   implementation activates the gtk.activate-default action.
13    fn activate(&self) {
14        self.parent_activate()
15    }
16}
17
18mod sealed {
19    pub trait Sealed {}
20    impl<T: super::EntryImplExt> Sealed for T {}
21}
22
23pub trait EntryImplExt: sealed::Sealed + ObjectSubclass {
24    fn parent_activate(&self) {
25        unsafe {
26            let data = Self::type_data();
27            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkEntryClass;
28            if let Some(f) = (*parent_class).activate {
29                f(self.obj().unsafe_cast_ref::<Entry>().to_glib_none().0)
30            }
31        }
32    }
33}
34
35impl<T: EntryImpl> EntryImplExt for T {}
36
37unsafe impl<T: EntryImpl> IsSubclassable<T> for Entry {
38    fn class_init(class: &mut glib::Class<Self>) {
39        Self::parent_class_init::<T>(class);
40
41        let klass = class.as_mut();
42        klass.activate = Some(entry_activate::<T>);
43    }
44}
45
46unsafe extern "C" fn entry_activate<T: EntryImpl>(ptr: *mut ffi::GtkEntry) {
47    let instance = &*(ptr as *mut T::Instance);
48    let imp = instance.imp();
49
50    imp.activate()
51}