2020-12-15 10:53:31 +00:00
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// Take a look at the license at the top of the repository in the LICENSE file.
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2018-11-19 16:37:00 +00:00
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2020-11-14 15:34:41 +00:00
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use glib::prelude::*;
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2018-11-19 16:37:00 +00:00
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use glib::translate::*;
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use super::prelude::*;
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use glib::subclass::prelude::*;
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2020-11-21 13:46:48 +00:00
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use crate::Bin;
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use crate::Element;
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use crate::LoggableError;
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use crate::Message;
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2018-11-19 16:37:00 +00:00
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2020-07-25 08:02:04 +00:00
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pub trait BinImpl: BinImplExt + ElementImpl {
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2020-11-14 15:34:41 +00:00
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fn add_element(&self, bin: &Self::Type, element: &Element) -> Result<(), LoggableError> {
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2018-11-19 16:37:00 +00:00
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self.parent_add_element(bin, element)
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}
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2020-11-14 15:34:41 +00:00
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fn remove_element(&self, bin: &Self::Type, element: &Element) -> Result<(), LoggableError> {
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2018-11-19 16:37:00 +00:00
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self.parent_remove_element(bin, element)
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}
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2020-11-14 15:34:41 +00:00
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fn handle_message(&self, bin: &Self::Type, message: Message) {
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2018-11-19 16:37:00 +00:00
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self.parent_handle_message(bin, message)
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}
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2019-02-13 09:57:04 +00:00
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}
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2018-11-19 16:37:00 +00:00
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2020-11-14 15:34:41 +00:00
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pub trait BinImplExt: ObjectSubclass {
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fn parent_add_element(&self, bin: &Self::Type, element: &Element) -> Result<(), LoggableError>;
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2019-02-13 09:57:04 +00:00
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2020-11-14 15:34:41 +00:00
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fn parent_remove_element(
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&self,
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bin: &Self::Type,
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element: &Element,
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) -> Result<(), LoggableError>;
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2019-02-13 09:57:04 +00:00
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2020-11-14 15:34:41 +00:00
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fn parent_handle_message(&self, bin: &Self::Type, message: Message);
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2019-02-13 09:57:04 +00:00
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}
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2020-07-25 08:02:04 +00:00
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impl<T: BinImpl> BinImplExt for T {
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2020-11-14 15:34:41 +00:00
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fn parent_add_element(&self, bin: &Self::Type, element: &Element) -> Result<(), LoggableError> {
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2018-11-19 16:37:00 +00:00
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unsafe {
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2020-07-25 08:02:04 +00:00
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let data = T::type_data();
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2020-11-21 13:46:48 +00:00
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBinClass;
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2019-01-24 21:11:43 +00:00
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let f = (*parent_class).add_element.ok_or_else(|| {
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2020-12-20 15:09:22 +00:00
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loggable_error!(
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2020-11-21 13:46:48 +00:00
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crate::CAT_RUST,
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"Parent function `add_element` is not defined"
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)
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2019-01-24 21:11:43 +00:00
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})?;
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2020-12-20 15:09:22 +00:00
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result_from_gboolean!(
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2020-11-14 15:34:41 +00:00
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f(
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2020-11-21 13:46:48 +00:00
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bin.unsafe_cast_ref::<crate::Bin>().to_glib_none().0,
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2020-11-14 15:34:41 +00:00
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element.to_glib_none().0
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),
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2020-11-21 13:46:48 +00:00
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crate::CAT_RUST,
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2019-01-16 20:23:56 +00:00
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"Failed to add the element using the parent function"
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)
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2018-11-19 16:37:00 +00:00
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}
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}
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2020-11-14 15:34:41 +00:00
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fn parent_remove_element(
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&self,
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bin: &Self::Type,
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element: &Element,
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) -> Result<(), LoggableError> {
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2018-11-19 16:37:00 +00:00
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unsafe {
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2020-07-25 08:02:04 +00:00
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let data = T::type_data();
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2020-11-21 13:46:48 +00:00
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBinClass;
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2019-01-16 20:23:56 +00:00
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let f = (*parent_class).remove_element.ok_or_else(|| {
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2020-12-20 15:09:22 +00:00
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loggable_error!(
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2020-11-21 13:46:48 +00:00
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crate::CAT_RUST,
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2019-01-24 21:11:43 +00:00
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"Parent function `remove_element` is not defined"
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)
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2019-01-16 20:23:56 +00:00
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})?;
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2020-12-20 15:09:22 +00:00
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result_from_gboolean!(
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2020-11-14 15:34:41 +00:00
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f(
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2020-11-21 13:46:48 +00:00
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bin.unsafe_cast_ref::<crate::Bin>().to_glib_none().0,
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2020-11-14 15:34:41 +00:00
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element.to_glib_none().0
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),
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2020-11-21 13:46:48 +00:00
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crate::CAT_RUST,
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2019-01-16 20:23:56 +00:00
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"Failed to remove the element using the parent function"
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)
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2018-11-19 16:37:00 +00:00
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}
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}
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2020-11-14 15:34:41 +00:00
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fn parent_handle_message(&self, bin: &Self::Type, message: Message) {
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2018-11-19 16:37:00 +00:00
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unsafe {
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2020-07-25 08:02:04 +00:00
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let data = T::type_data();
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2020-11-21 13:46:48 +00:00
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let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBinClass;
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2019-02-28 08:54:32 +00:00
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if let Some(ref f) = (*parent_class).handle_message {
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2020-11-14 15:34:41 +00:00
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f(
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2020-11-21 13:46:48 +00:00
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bin.unsafe_cast_ref::<crate::Bin>().to_glib_none().0,
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2020-11-14 15:34:41 +00:00
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message.into_ptr(),
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);
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2019-02-28 08:54:32 +00:00
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}
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2018-11-19 16:37:00 +00:00
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}
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}
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}
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2021-03-09 13:37:05 +00:00
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unsafe impl<T: BinImpl> IsSubclassable<T> for Bin {
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2021-03-08 10:06:56 +00:00
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fn class_init(klass: &mut glib::Class<Self>) {
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<crate::Element as IsSubclassable<T>>::class_init(klass);
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2020-11-05 17:07:31 +00:00
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let klass = klass.as_mut();
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klass.add_element = Some(bin_add_element::<T>);
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klass.remove_element = Some(bin_remove_element::<T>);
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klass.handle_message = Some(bin_handle_message::<T>);
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2018-11-19 16:37:00 +00:00
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}
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2021-03-09 11:50:32 +00:00
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fn instance_init(instance: &mut glib::subclass::InitializingObject<T>) {
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<crate::Element as IsSubclassable<T>>::instance_init(instance);
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}
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2018-11-19 16:37:00 +00:00
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}
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2020-07-25 08:02:04 +00:00
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unsafe extern "C" fn bin_add_element<T: BinImpl>(
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2020-11-21 13:46:48 +00:00
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ptr: *mut ffi::GstBin,
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element: *mut ffi::GstElement,
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2021-03-09 13:37:05 +00:00
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) -> glib::ffi::gboolean {
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2018-11-19 16:37:00 +00:00
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.get_impl();
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2020-04-05 14:52:56 +00:00
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let wrap: Borrowed<Bin> = from_glib_borrow(ptr);
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2018-11-19 16:37:00 +00:00
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2021-03-09 13:37:05 +00:00
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panic_to_error!(&wrap, &imp.panicked(), false, {
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2020-11-14 15:34:41 +00:00
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match imp.add_element(wrap.unsafe_cast_ref(), &from_glib_none(element)) {
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2019-01-16 20:23:56 +00:00
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Ok(()) => true,
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Err(err) => {
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2020-04-05 14:52:56 +00:00
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err.log_with_object(&*wrap);
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2019-01-16 20:23:56 +00:00
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false
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}
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}
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2018-11-19 16:37:00 +00:00
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})
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.to_glib()
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}
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2020-07-25 08:02:04 +00:00
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unsafe extern "C" fn bin_remove_element<T: BinImpl>(
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2020-11-21 13:46:48 +00:00
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ptr: *mut ffi::GstBin,
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element: *mut ffi::GstElement,
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2021-03-09 13:37:05 +00:00
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) -> glib::ffi::gboolean {
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2018-11-19 16:37:00 +00:00
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.get_impl();
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2020-04-05 14:52:56 +00:00
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let wrap: Borrowed<Bin> = from_glib_borrow(ptr);
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2018-11-19 16:37:00 +00:00
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2019-12-07 20:56:11 +00:00
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// If we get a floating reference passed simply return FALSE here. It can't be
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// stored inside this bin, and if we continued to use it we would take ownership
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// of this floating reference.
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2020-11-21 13:46:48 +00:00
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if glib::gobject_ffi::g_object_is_floating(element as *mut glib::gobject_ffi::GObject)
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!= glib::ffi::GFALSE
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{
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return glib::ffi::GFALSE;
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2019-12-07 20:56:11 +00:00
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}
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2021-03-09 13:37:05 +00:00
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panic_to_error!(&wrap, &imp.panicked(), false, {
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2020-11-14 15:34:41 +00:00
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match imp.remove_element(wrap.unsafe_cast_ref(), &from_glib_none(element)) {
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2019-01-16 20:23:56 +00:00
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Ok(()) => true,
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Err(err) => {
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2020-04-05 14:52:56 +00:00
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err.log_with_object(&*wrap);
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2019-01-16 20:23:56 +00:00
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false
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}
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}
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2018-11-19 16:37:00 +00:00
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})
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.to_glib()
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}
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2020-07-25 08:02:04 +00:00
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unsafe extern "C" fn bin_handle_message<T: BinImpl>(
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2020-11-21 13:46:48 +00:00
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ptr: *mut ffi::GstBin,
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message: *mut ffi::GstMessage,
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2021-03-09 13:37:05 +00:00
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) {
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2018-11-19 16:37:00 +00:00
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.get_impl();
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2020-04-05 14:52:56 +00:00
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let wrap: Borrowed<Bin> = from_glib_borrow(ptr);
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2018-11-19 16:37:00 +00:00
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2021-03-09 13:37:05 +00:00
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panic_to_error!(&wrap, &imp.panicked(), (), {
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2020-11-14 15:34:41 +00:00
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imp.handle_message(wrap.unsafe_cast_ref(), from_glib_full(message))
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2018-11-19 16:37:00 +00:00
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});
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}
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