mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer-rs.git
synced 2024-05-19 16:58:22 +00:00
110 lines
3.3 KiB
Rust
110 lines
3.3 KiB
Rust
// Take a look at the license at the top of the repository in the LICENSE file.
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use glib::{prelude::*, subclass::prelude::*, translate::*};
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use crate::Navigation;
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pub trait NavigationImpl: ObjectImpl {
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fn send_event(&self, structure: gst::Structure);
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#[cfg(feature = "v1_22")]
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#[cfg_attr(docsrs, doc(cfg(feature = "v1_22")))]
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fn send_event_simple(&self, event: gst::Event) {
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if let Some(structure) = event.structure() {
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self.send_event(structure.to_owned());
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}
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}
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}
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pub trait NavigationImplExt: ObjectSubclass {
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fn parent_send_event(&self, structure: gst::Structure);
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#[cfg(feature = "v1_22")]
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#[cfg_attr(docsrs, doc(cfg(feature = "v1_22")))]
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fn parent_send_event_simple(&self, event: gst::Event) {
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if let Some(structure) = event.structure() {
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self.parent_send_event(structure.to_owned());
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}
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}
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}
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impl<T: NavigationImpl> NavigationImplExt for T {
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fn parent_send_event(&self, structure: gst::Structure) {
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unsafe {
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let type_data = Self::type_data();
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let parent_iface = type_data.as_ref().parent_interface::<Navigation>()
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as *const ffi::GstNavigationInterface;
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let func = match (*parent_iface).send_event {
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Some(func) => func,
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None => return,
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};
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func(
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self.obj().unsafe_cast_ref::<Navigation>().to_glib_none().0,
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structure.into_glib_ptr(),
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);
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}
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}
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#[cfg(feature = "v1_22")]
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#[cfg_attr(docsrs, doc(cfg(feature = "v1_22")))]
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fn parent_send_event_simple(&self, event: gst::Event) {
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unsafe {
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let type_data = Self::type_data();
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let parent_iface = type_data.as_ref().parent_interface::<Navigation>()
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as *const ffi::GstNavigationInterface;
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let func = match (*parent_iface).send_event_simple {
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Some(func) => func,
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None => return,
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};
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func(
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self.obj().unsafe_cast_ref::<Navigation>().to_glib_none().0,
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event.into_glib_ptr(),
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);
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}
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}
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}
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unsafe impl<T: NavigationImpl> IsImplementable<T> for Navigation {
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#[cfg(not(any(feature = "v1_22", docsrs)))]
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fn interface_init(iface: &mut glib::Interface<Self>) {
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let iface = iface.as_mut();
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iface.send_event = Some(navigation_send_event::<T>);
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}
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#[cfg(feature = "v1_22")]
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#[cfg_attr(docsrs, doc(cfg(feature = "v1_22")))]
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fn interface_init(iface: &mut glib::Interface<Self>) {
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let iface = iface.as_mut();
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iface.send_event = Some(navigation_send_event::<T>);
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iface.send_event_simple = Some(navigation_send_event_simple::<T>);
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}
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}
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unsafe extern "C" fn navigation_send_event<T: NavigationImpl>(
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nav: *mut ffi::GstNavigation,
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structure: *mut gst::ffi::GstStructure,
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) {
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let instance = &*(nav as *mut T::Instance);
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let imp = instance.imp();
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imp.send_event(from_glib_full(structure));
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}
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#[cfg(feature = "v1_22")]
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#[cfg_attr(docsrs, doc(cfg(feature = "v1_22")))]
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unsafe extern "C" fn navigation_send_event_simple<T: NavigationImpl>(
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nav: *mut ffi::GstNavigation,
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event: *mut gst::ffi::GstEvent,
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) {
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let instance = &*(nav as *mut T::Instance);
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let imp = instance.imp();
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imp.send_event_simple(from_glib_full(event));
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}
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