gtk4/subclass/
media_file.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 [`MediaFile`].
5
6use gdk::Paintable;
7use glib::translate::*;
8
9use crate::{ffi, prelude::*, subclass::prelude::*, MediaFile};
10
11pub trait MediaFileImpl:
12    MediaStreamImpl + ObjectSubclass<Type: IsA<MediaFile> + IsA<Paintable>>
13{
14    fn close(&self) {
15        self.parent_close()
16    }
17    fn open(&self) {
18        self.parent_open()
19    }
20}
21
22pub trait MediaFileImplExt: MediaFileImpl {
23    fn parent_close(&self) {
24        unsafe {
25            let data = Self::type_data();
26            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkMediaFileClass;
27            if let Some(f) = (*parent_class).close {
28                f(self.obj().unsafe_cast_ref::<MediaFile>().to_glib_none().0)
29            }
30        }
31    }
32
33    fn parent_open(&self) {
34        unsafe {
35            let data = Self::type_data();
36            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkMediaFileClass;
37            if let Some(f) = (*parent_class).open {
38                f(self.obj().unsafe_cast_ref::<MediaFile>().to_glib_none().0)
39            }
40        }
41    }
42}
43
44impl<T: MediaFileImpl> MediaFileImplExt for T {}
45
46unsafe impl<T: MediaFileImpl> IsSubclassable<T> for MediaFile {
47    fn class_init(class: &mut glib::Class<Self>) {
48        Self::parent_class_init::<T>(class);
49
50        let klass = class.as_mut();
51        klass.close = Some(media_file_close::<T>);
52        klass.open = Some(media_file_open::<T>);
53    }
54}
55
56unsafe extern "C" fn media_file_close<T: MediaFileImpl>(ptr: *mut ffi::GtkMediaFile) {
57    let instance = &*(ptr as *mut T::Instance);
58    let imp = instance.imp();
59
60    imp.close()
61}
62
63unsafe extern "C" fn media_file_open<T: MediaFileImpl>(ptr: *mut ffi::GtkMediaFile) {
64    let instance = &*(ptr as *mut T::Instance);
65    let imp = instance.imp();
66
67    imp.open()
68}
gtk4/subclass/media_file.rs

gtk4/subclass/
media_file.rs
