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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use dom_struct::dom_struct;
use js::rust::HandleObject;
use servo_media::audio::node::AudioNodeInit;
use servo_media::streams::MediaStreamType;
use crate::dom::audiocontext::AudioContext;
use crate::dom::audionode::AudioNode;
use crate::dom::bindings::codegen::Bindings::MediaStreamAudioSourceNodeBinding::{
MediaStreamAudioSourceNodeMethods, MediaStreamAudioSourceOptions,
};
use crate::dom::bindings::error::{Error, Fallible};
use crate::dom::bindings::inheritance::Castable;
use crate::dom::bindings::reflector::reflect_dom_object_with_proto;
use crate::dom::bindings::root::{Dom, DomRoot};
use crate::dom::mediastream::MediaStream;
use crate::dom::window::Window;
use crate::script_runtime::CanGc;
#[dom_struct]
pub(crate) struct MediaStreamAudioSourceNode {
node: AudioNode,
stream: Dom<MediaStream>,
}
impl MediaStreamAudioSourceNode {
#[cfg_attr(crown, allow(crown::unrooted_must_root))]
pub(crate) fn new_inherited(
context: &AudioContext,
stream: &MediaStream,
) -> Fallible<MediaStreamAudioSourceNode> {
let track = stream
.get_tracks()
.iter()
.find(|t| t.ty() == MediaStreamType::Audio)
.ok_or(Error::InvalidState)?
.id();
let node = AudioNode::new_inherited(
AudioNodeInit::MediaStreamSourceNode(track),
context.upcast(),
Default::default(),
0, // inputs
1, // outputs
)?;
Ok(MediaStreamAudioSourceNode {
node,
stream: Dom::from_ref(stream),
})
}
pub(crate) fn new(
window: &Window,
context: &AudioContext,
stream: &MediaStream,
can_gc: CanGc,
) -> Fallible<DomRoot<MediaStreamAudioSourceNode>> {
Self::new_with_proto(window, None, context, stream, can_gc)
}
#[cfg_attr(crown, allow(crown::unrooted_must_root))]
fn new_with_proto(
window: &Window,
proto: Option<HandleObject>,
context: &AudioContext,
stream: &MediaStream,
can_gc: CanGc,
) -> Fallible<DomRoot<MediaStreamAudioSourceNode>> {
let node = MediaStreamAudioSourceNode::new_inherited(context, stream)?;
Ok(reflect_dom_object_with_proto(
Box::new(node),
window,
proto,
can_gc,
))
}
}
impl MediaStreamAudioSourceNodeMethods<crate::DomTypeHolder> for MediaStreamAudioSourceNode {
/// <https://webaudio.github.io/web-audio-api/#dom-mediastreamaudiosourcenode-mediastreamaudiosourcenode>
fn Constructor(
window: &Window,
proto: Option<HandleObject>,
can_gc: CanGc,
context: &AudioContext,
options: &MediaStreamAudioSourceOptions,
) -> Fallible<DomRoot<MediaStreamAudioSourceNode>> {
MediaStreamAudioSourceNode::new_with_proto(
window,
proto,
context,
&options.mediaStream,
can_gc,
)
}
/// <https://webaudio.github.io/web-audio-api/#dom-MediaStreamAudioSourceNode-stream>
fn MediaStream(&self) -> DomRoot<MediaStream> {
DomRoot::from_ref(&self.stream)
}
}
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