gstreamer/
child_proxy.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use std::ptr;
4
5use glib::{prelude::*, translate::*};
6
7use crate::{gobject::GObjectExtManualGst, ChildProxy};
8
9mod sealed {
10    pub trait Sealed {}
11    impl<T: super::IsA<super::ChildProxy>> Sealed for T {}
12}
13
14pub trait ChildProxyExtManual: sealed::Sealed + IsA<ChildProxy> + 'static {
15    #[doc(alias = "gst_child_proxy_lookup")]
16    fn lookup(&self, name: &str) -> Result<(glib::Object, glib::ParamSpec), glib::BoolError> {
17        unsafe {
18            let mut target = ptr::null_mut();
19            let mut pspec = ptr::null_mut();
20            let ret = from_glib(crate::ffi::gst_child_proxy_lookup(
21                self.as_ref().to_glib_none().0,
22                name.to_glib_none().0,
23                &mut target,
24                &mut pspec,
25            ));
26            if ret {
27                Ok((from_glib_full(target), from_glib_none(pspec)))
28            } else {
29                Err(glib::bool_error!("Failed to find child property '{name}'"))
30            }
31        }
32    }
33
34    #[doc(alias = "get_child_property")]
35    #[doc(alias = "gst_child_proxy_get")]
36    #[track_caller]
37    fn child_property<V: for<'b> glib::value::FromValue<'b> + 'static>(&self, name: &str) -> V {
38        let (child, pspec) = self.lookup(name).unwrap();
39        child.property(pspec.name())
40    }
41
42    #[doc(alias = "get_child_property")]
43    #[doc(alias = "gst_child_proxy_get")]
44    #[track_caller]
45    fn child_property_value(&self, name: &str) -> glib::Value {
46        let (child, pspec) = self.lookup(name).unwrap();
47        child.property_value(pspec.name())
48    }
49
50    #[doc(alias = "gst_child_proxy_set")]
51    #[track_caller]
52    fn set_child_property(&self, name: &str, value: impl Into<glib::Value>) {
53        let (child, pspec) = self.lookup(name).unwrap();
54        child.set_property(pspec.name(), value)
55    }
56
57    #[doc(alias = "gst_child_proxy_set")]
58    #[track_caller]
59    fn set_child_property_from_str(&self, name: &str, value: &str) {
60        let (child, pspec) = self.lookup(name).unwrap();
61        child.set_property_from_str(pspec.name(), value)
62    }
63
64    #[doc(alias = "gst_child_proxy_set_property")]
65    #[track_caller]
66    fn set_child_property_from_value(&self, name: &str, value: &glib::Value) {
67        let (child, pspec) = self.lookup(name).unwrap();
68        child.set_property_from_value(pspec.name(), value)
69    }
70}
71
72impl<O: IsA<ChildProxy>> ChildProxyExtManual for O {}
gstreamer/child_proxy.rs

gstreamer/
child_proxy.rs
