gtk4/subclass/
dialog.rs

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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 [`Dialog`].
5
6use glib::translate::*;
7
8use crate::{ffi, prelude::*, subclass::prelude::*, Dialog, ResponseType};
9
10pub trait DialogImpl: WindowImpl + ObjectSubclass<Type: IsA<Dialog>> {
11    /// Emits the ::response signal with the given response ID.
12    ///
13    /// Used to indicate that the user has responded to the dialog in some way.
14    ///
15    /// # Deprecated since 4.10
16    ///
17    /// Use [`Window`][crate::Window] instead
18    /// ## `response_id`
19    /// response ID
20    fn response(&self, response: ResponseType) {
21        self.parent_response(response)
22    }
23
24    /// Signal emitted when the user uses a keybinding to close the dialog.
25    fn close(&self) {
26        self.parent_close()
27    }
28}
29
30pub trait DialogImplExt: DialogImpl {
31    fn parent_response(&self, response: ResponseType) {
32        unsafe {
33            let data = Self::type_data();
34            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkDialogClass;
35            if let Some(f) = (*parent_class).response {
36                f(
37                    self.obj().unsafe_cast_ref::<Dialog>().to_glib_none().0,
38                    response.into_glib(),
39                )
40            }
41        }
42    }
43
44    fn parent_close(&self) {
45        unsafe {
46            let data = Self::type_data();
47            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkDialogClass;
48            if let Some(f) = (*parent_class).close {
49                f(self.obj().unsafe_cast_ref::<Dialog>().to_glib_none().0)
50            }
51        }
52    }
53}
54
55impl<T: DialogImpl> DialogImplExt for T {}
56
57unsafe impl<T: DialogImpl> IsSubclassable<T> for Dialog {
58    fn class_init(class: &mut glib::Class<Self>) {
59        Self::parent_class_init::<T>(class);
60
61        let klass = class.as_mut();
62        klass.response = Some(dialog_response::<T>);
63        klass.close = Some(dialog_close::<T>);
64    }
65}
66
67unsafe extern "C" fn dialog_response<T: DialogImpl>(ptr: *mut ffi::GtkDialog, responseptr: i32) {
68    let instance = &*(ptr as *mut T::Instance);
69    let imp = instance.imp();
70    let res: ResponseType = from_glib(responseptr);
71
72    imp.response(res)
73}
74
75unsafe extern "C" fn dialog_close<T: DialogImpl>(ptr: *mut ffi::GtkDialog) {
76    let instance = &*(ptr as *mut T::Instance);
77    let imp = instance.imp();
78
79    imp.close()
80}
gtk4/subclass/dialog.rs

gtk4/subclass/
dialog.rs
