use crate::{Caps, Object, Pad, PadDirection, PadPresence};
use glib::{
prelude::*,
signal::{connect_raw, SignalHandlerId},
translate::*,
};
use std::boxed::Box as Box_;
glib::wrapper! {
#[doc(alias = "GstPadTemplate")]
pub struct PadTemplate(Object<ffi::GstPadTemplate, ffi::GstPadTemplateClass>) @extends Object;
match fn {
type_ => || ffi::gst_pad_template_get_type(),
}
}
impl PadTemplate {
#[doc(alias = "gst_pad_template_new")]
pub fn new(
name_template: &str,
direction: PadDirection,
presence: PadPresence,
caps: &Caps,
) -> Result<PadTemplate, glib::BoolError> {
assert_initialized_main_thread!();
unsafe {
Option::<_>::from_glib_none(ffi::gst_pad_template_new(
name_template.to_glib_none().0,
direction.into_glib(),
presence.into_glib(),
caps.to_glib_none().0,
))
.ok_or_else(|| glib::bool_error!("Failed to create pad template"))
}
}
#[doc(alias = "gst_pad_template_new_with_gtype")]
#[doc(alias = "new_with_gtype")]
pub fn with_gtype(
name_template: &str,
direction: PadDirection,
presence: PadPresence,
caps: &Caps,
pad_type: glib::types::Type,
) -> Result<PadTemplate, glib::BoolError> {
assert_initialized_main_thread!();
unsafe {
Option::<_>::from_glib_none(ffi::gst_pad_template_new_with_gtype(
name_template.to_glib_none().0,
direction.into_glib(),
presence.into_glib(),
caps.to_glib_none().0,
pad_type.into_glib(),
))
.ok_or_else(|| glib::bool_error!("Failed to create pad template"))
}
}
#[doc(alias = "gst_pad_template_pad_created")]
pub fn pad_created(&self, pad: &impl IsA<Pad>) {
unsafe {
ffi::gst_pad_template_pad_created(self.to_glib_none().0, pad.as_ref().to_glib_none().0);
}
}
#[doc(alias = "pad-created")]
pub fn connect_pad_created<F: Fn(&Self, &Pad) + Send + Sync + 'static>(
&self,
f: F,
) -> SignalHandlerId {
unsafe extern "C" fn pad_created_trampoline<
F: Fn(&PadTemplate, &Pad) + Send + Sync + 'static,
>(
this: *mut ffi::GstPadTemplate,
pad: *mut ffi::GstPad,
f: glib::ffi::gpointer,
) {
let f: &F = &*(f as *const F);
f(&from_glib_borrow(this), &from_glib_borrow(pad))
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"pad-created\0".as_ptr() as *const _,
Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
pad_created_trampoline::<F> as *const (),
)),
Box_::into_raw(f),
)
}
}
}
unsafe impl Send for PadTemplate {}
unsafe impl Sync for PadTemplate {}