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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 crate::dom::audionode::{AudioNode, MAX_CHANNEL_COUNT};
use crate::dom::baseaudiocontext::BaseAudioContext;
use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{
ChannelCountMode, ChannelInterpretation,
};
use crate::dom::bindings::codegen::Bindings::ChannelSplitterNodeBinding::ChannelSplitterOptions;
use crate::dom::bindings::error::{Error, Fallible};
use crate::dom::bindings::reflector::reflect_dom_object2;
use crate::dom::bindings::root::DomRoot;
use crate::dom::window::Window;
use dom_struct::dom_struct;
use js::rust::HandleObject;
use servo_media::audio::node::AudioNodeInit;
#[dom_struct]
pub struct ChannelSplitterNode {
node: AudioNode,
}
impl ChannelSplitterNode {
#[allow(unrooted_must_root)]
pub fn new_inherited(
_: &Window,
context: &BaseAudioContext,
options: &ChannelSplitterOptions,
) -> Fallible<ChannelSplitterNode> {
if options.numberOfOutputs < 1 || options.numberOfOutputs > MAX_CHANNEL_COUNT {
return Err(Error::IndexSize);
}
let node_options = options.parent.unwrap_or(
options.numberOfOutputs,
ChannelCountMode::Explicit,
ChannelInterpretation::Discrete,
);
if node_options.count != options.numberOfOutputs ||
node_options.mode != ChannelCountMode::Explicit ||
node_options.interpretation != ChannelInterpretation::Discrete
{
return Err(Error::InvalidState);
}
let node = AudioNode::new_inherited(
AudioNodeInit::ChannelSplitterNode,
context,
node_options,
1, // inputs
options.numberOfOutputs, // outputs
)?;
Ok(ChannelSplitterNode { node })
}
pub fn new(
window: &Window,
context: &BaseAudioContext,
options: &ChannelSplitterOptions,
) -> Fallible<DomRoot<ChannelSplitterNode>> {
Self::new_with_proto(window, None, context, options)
}
#[allow(unrooted_must_root)]
fn new_with_proto(
window: &Window,
proto: Option<HandleObject>,
context: &BaseAudioContext,
options: &ChannelSplitterOptions,
) -> Fallible<DomRoot<ChannelSplitterNode>> {
let node = ChannelSplitterNode::new_inherited(window, context, options)?;
Ok(reflect_dom_object2(Box::new(node), window, proto))
}
#[allow(non_snake_case)]
pub fn Constructor(
window: &Window,
proto: Option<HandleObject>,
context: &BaseAudioContext,
options: &ChannelSplitterOptions,
) -> Fallible<DomRoot<ChannelSplitterNode>> {
ChannelSplitterNode::new_with_proto(window, proto, context, options)
}
}
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