1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use glib::{prelude::*, subclass::prelude::*, translate::*};
4
5use crate::{ffi, Navigation};
6
7pub trait NavigationImpl: ObjectImpl {
8 fn send_event(&self, structure: gst::Structure);
9
10 #[cfg(feature = "v1_22")]
11 #[cfg_attr(docsrs, doc(cfg(feature = "v1_22")))]
12 fn send_event_simple(&self, event: gst::Event) {
13 if let Some(structure) = event.structure() {
14 self.send_event(structure.to_owned());
15 }
16 }
17}
18
19mod sealed {
20 pub trait Sealed {}
21 impl<T: super::NavigationImplExt> Sealed for T {}
22}
23
24pub trait NavigationImplExt: sealed::Sealed + ObjectSubclass {
25 fn parent_send_event(&self, structure: gst::Structure) {
26 unsafe {
27 let type_data = Self::type_data();
28 let parent_iface = type_data.as_ref().parent_interface::<Navigation>()
29 as *const ffi::GstNavigationInterface;
30
31 let func = match (*parent_iface).send_event {
32 Some(func) => func,
33 None => return,
34 };
35
36 func(
37 self.obj().unsafe_cast_ref::<Navigation>().to_glib_none().0,
38 structure.into_glib_ptr(),
39 );
40 }
41 }
42
43 #[cfg(feature = "v1_22")]
44 #[cfg_attr(docsrs, doc(cfg(feature = "v1_22")))]
45 fn parent_send_event_simple(&self, event: gst::Event) {
46 unsafe {
47 let type_data = Self::type_data();
48 let parent_iface = type_data.as_ref().parent_interface::<Navigation>()
49 as *const ffi::GstNavigationInterface;
50
51 let func = match (*parent_iface).send_event_simple {
52 Some(func) => func,
53 None => return,
54 };
55
56 func(
57 self.obj().unsafe_cast_ref::<Navigation>().to_glib_none().0,
58 event.into_glib_ptr(),
59 );
60 }
61 }
62}
63
64impl<T: NavigationImpl> NavigationImplExt for T {}
65
66unsafe impl<T: NavigationImpl> IsImplementable<T> for Navigation {
67 #[cfg(not(any(feature = "v1_22", docsrs)))]
68 fn interface_init(iface: &mut glib::Interface<Self>) {
69 let iface: &mut GstNavigationInterface = iface.as_mut();
70
71 iface.send_event = Some(navigation_send_event::<T>);
72 }
73
74 #[cfg(feature = "v1_22")]
75 #[cfg_attr(docsrs, doc(cfg(feature = "v1_22")))]
76 fn interface_init(iface: &mut glib::Interface<Self>) {
77 let iface = iface.as_mut();
78
79 iface.send_event = Some(navigation_send_event::<T>);
80 iface.send_event_simple = Some(navigation_send_event_simple::<T>);
81 }
82}
83
84unsafe extern "C" fn navigation_send_event<T: NavigationImpl>(
85 nav: *mut ffi::GstNavigation,
86 structure: *mut gst::ffi::GstStructure,
87) {
88 let instance: &::Instance = &*(nav as *mut T::Instance);
89 let imp: &T = instance.imp();
90
91 imp.send_event(structure:from_glib_full(ptr:structure));
92}
93
94#[cfg(feature = "v1_22")]
95#[cfg_attr(docsrs, doc(cfg(feature = "v1_22")))]
96unsafe extern "C" fn navigation_send_event_simple<T: NavigationImpl>(
97 nav: *mut ffi::GstNavigation,
98 event: *mut gst::ffi::GstEvent,
99) {
100 let instance = &*(nav as *mut T::Instance);
101 let imp = instance.imp();
102
103 imp.send_event_simple(from_glib_full(event));
104}
105