sourceview5/subclass/
style_scheme_chooser.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 implementing the [`StyleSchemeChooser`](crate::StyleSchemeChooser) interface.
5
6use super::PtrHolder;
7use crate::{StyleScheme, StyleSchemeChooser};
8use glib::subclass::prelude::*;
9use glib::{prelude::*, translate::*};
10
11pub trait StyleSchemeChooserImpl: ObjectImpl + ObjectSubclass<Type: IsA<glib::Object>> {
12    fn style_scheme(&self) -> StyleScheme {
13        self.parent_style_scheme()
14    }
15
16    fn set_style_scheme(&self, style_scheme: &StyleScheme) {
17        self.parent_set_style_scheme(style_scheme)
18    }
19}
20
21pub trait StyleSchemeChooserImplExt: StyleSchemeChooserImpl {
22    fn parent_style_scheme(&self) -> StyleScheme {
23        unsafe {
24            let type_data = Self::type_data();
25            let parent_iface = type_data.as_ref().parent_interface::<StyleSchemeChooser>()
26                as *const ffi::GtkSourceStyleSchemeChooserInterface;
27
28            let func = (*parent_iface)
29                .get_style_scheme
30                .expect("no parent \"get_style_scheme\" implementation");
31
32            from_glib_none(func(
33                self.obj()
34                    .unsafe_cast_ref::<StyleSchemeChooser>()
35                    .to_glib_none()
36                    .0,
37            ))
38        }
39    }
40
41    fn parent_set_style_scheme(&self, style_scheme: &StyleScheme) {
42        unsafe {
43            let type_data = Self::type_data();
44            let parent_iface = type_data.as_ref().parent_interface::<StyleSchemeChooser>()
45                as *const ffi::GtkSourceStyleSchemeChooserInterface;
46
47            let func = (*parent_iface)
48                .set_style_scheme
49                .expect("no parent \"set_style_scheme\" implementation");
50
51            func(
52                self.obj()
53                    .unsafe_cast_ref::<StyleSchemeChooser>()
54                    .to_glib_none()
55                    .0,
56                style_scheme.to_glib_none().0,
57            )
58        }
59    }
60}
61
62impl<T: StyleSchemeChooserImpl> StyleSchemeChooserImplExt for T {}
63
64unsafe impl<T: StyleSchemeChooserImpl> IsImplementable<T> for StyleSchemeChooser {
65    fn interface_init(iface: &mut glib::Interface<Self>) {
66        let iface = iface.as_mut();
67
68        iface.get_style_scheme = Some(style_scheme_chooser_get_style_scheme::<T>);
69        iface.set_style_scheme = Some(style_scheme_chooser_set_style_scheme::<T>);
70    }
71}
72
73unsafe extern "C" fn style_scheme_chooser_get_style_scheme<T: StyleSchemeChooserImpl>(
74    style_scheme_chooser: *mut ffi::GtkSourceStyleSchemeChooser,
75) -> *mut ffi::GtkSourceStyleScheme {
76    unsafe {
77        let instance = &*(style_scheme_chooser as *mut T::Instance);
78        let imp = instance.imp();
79
80        let style_scheme = imp.style_scheme().to_glib_full();
81
82        let quark = {
83            static QUARK: std::sync::OnceLock<glib::Quark> = std::sync::OnceLock::new();
84            QUARK.get_or_init(|| {
85                glib::Quark::from_str(
86                    "sourceview5-rs-subclass-style-scheme-chooser-get-style-scheme",
87                )
88            })
89        };
90        // It's a transfer none so we have to keep an instance of it around
91        imp.obj().set_qdata(
92            *quark,
93            PtrHolder(style_scheme, |ptr| {
94                glib::gobject_ffi::g_object_unref(ptr as *mut _)
95            }),
96        );
97
98        style_scheme
99    }
100}
101
102unsafe extern "C" fn style_scheme_chooser_set_style_scheme<T: StyleSchemeChooserImpl>(
103    style_scheme_chooser: *mut ffi::GtkSourceStyleSchemeChooser,
104    style_scheme: *mut ffi::GtkSourceStyleScheme,
105) {
106    unsafe {
107        let instance = &*(style_scheme_chooser as *mut T::Instance);
108        let imp = instance.imp();
109
110        imp.set_style_scheme(&from_glib_borrow::<_, StyleScheme>(style_scheme))
111    }
112}
sourceview5/subclass/style_scheme_chooser.rs

sourceview5/subclass/
style_scheme_chooser.rs
