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use glib::prelude::*;
use glib::translate::*;
use super::prelude::*;
use glib::subclass::prelude::*;
use crate::Bin;
use crate::Element;
use crate::LoggableError;
use crate::Message;
pub trait BinImpl: BinImplExt + ElementImpl {
fn add_element(&self, bin: &Self::Type, element: &Element) -> Result<(), LoggableError> {
self.parent_add_element(bin, element)
}
fn remove_element(&self, bin: &Self::Type, element: &Element) -> Result<(), LoggableError> {
self.parent_remove_element(bin, element)
}
fn handle_message(&self, bin: &Self::Type, message: Message) {
self.parent_handle_message(bin, message)
}
}
pub trait BinImplExt: ObjectSubclass {
fn parent_add_element(&self, bin: &Self::Type, element: &Element) -> Result<(), LoggableError>;
fn parent_remove_element(
&self,
bin: &Self::Type,
element: &Element,
) -> Result<(), LoggableError>;
fn parent_handle_message(&self, bin: &Self::Type, message: Message);
}
impl<T: BinImpl> BinImplExt for T {
fn parent_add_element(&self, bin: &Self::Type, element: &Element) -> Result<(), LoggableError> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBinClass;
let f = (*parent_class).add_element.ok_or_else(|| {
loggable_error!(
crate::CAT_RUST,
"Parent function `add_element` is not defined"
)
})?;
result_from_gboolean!(
f(
bin.unsafe_cast_ref::<crate::Bin>().to_glib_none().0,
element.to_glib_none().0
),
crate::CAT_RUST,
"Failed to add the element using the parent function"
)
}
}
fn parent_remove_element(
&self,
bin: &Self::Type,
element: &Element,
) -> Result<(), LoggableError> {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBinClass;
let f = (*parent_class).remove_element.ok_or_else(|| {
loggable_error!(
crate::CAT_RUST,
"Parent function `remove_element` is not defined"
)
})?;
result_from_gboolean!(
f(
bin.unsafe_cast_ref::<crate::Bin>().to_glib_none().0,
element.to_glib_none().0
),
crate::CAT_RUST,
"Failed to remove the element using the parent function"
)
}
}
fn parent_handle_message(&self, bin: &Self::Type, message: Message) {
unsafe {
let data = Self::type_data();
let parent_class = data.as_ref().parent_class() as *mut ffi::GstBinClass;
if let Some(ref f) = (*parent_class).handle_message {
f(
bin.unsafe_cast_ref::<crate::Bin>().to_glib_none().0,
message.into_ptr(),
);
}
}
}
}
unsafe impl<T: BinImpl> IsSubclassable<T> for Bin {
fn class_init(klass: &mut glib::Class<Self>) {
<crate::Element as IsSubclassable<T>>::class_init(klass);
let klass = klass.as_mut();
klass.add_element = Some(bin_add_element::<T>);
klass.remove_element = Some(bin_remove_element::<T>);
klass.handle_message = Some(bin_handle_message::<T>);
}
fn instance_init(instance: &mut glib::subclass::InitializingObject<T>) {
<crate::Element as IsSubclassable<T>>::instance_init(instance);
}
}
unsafe extern "C" fn bin_add_element<T: BinImpl>(
ptr: *mut ffi::GstBin,
element: *mut ffi::GstElement,
) -> glib::ffi::gboolean {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.impl_();
let wrap: Borrowed<Bin> = from_glib_borrow(ptr);
panic_to_error!(&wrap, imp.panicked(), false, {
match imp.add_element(wrap.unsafe_cast_ref(), &from_glib_none(element)) {
Ok(()) => true,
Err(err) => {
err.log_with_object(&*wrap);
false
}
}
})
.into_glib()
}
unsafe extern "C" fn bin_remove_element<T: BinImpl>(
ptr: *mut ffi::GstBin,
element: *mut ffi::GstElement,
) -> glib::ffi::gboolean {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.impl_();
let wrap: Borrowed<Bin> = from_glib_borrow(ptr);
if glib::gobject_ffi::g_object_is_floating(element as *mut glib::gobject_ffi::GObject)
!= glib::ffi::GFALSE
{
return glib::ffi::GFALSE;
}
panic_to_error!(&wrap, imp.panicked(), false, {
match imp.remove_element(wrap.unsafe_cast_ref(), &from_glib_none(element)) {
Ok(()) => true,
Err(err) => {
err.log_with_object(&*wrap);
false
}
}
})
.into_glib()
}
unsafe extern "C" fn bin_handle_message<T: BinImpl>(
ptr: *mut ffi::GstBin,
message: *mut ffi::GstMessage,
) {
let instance = &*(ptr as *mut T::Instance);
let imp = instance.impl_();
let wrap: Borrowed<Bin> = from_glib_borrow(ptr);
panic_to_error!(&wrap, imp.panicked(), (), {
imp.handle_message(wrap.unsafe_cast_ref(), from_glib_full(message))
});
}