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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::bindings::cell::{DomRefCell, Ref};
use crate::dom::bindings::codegen::Bindings::MediaStreamBinding::{self, MediaStreamMethods};
use crate::dom::bindings::error::Fallible;
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
use crate::dom::bindings::root::{Dom, DomRoot};
use crate::dom::bindings::str::DOMString;
use crate::dom::eventtarget::EventTarget;
use crate::dom::globalscope::GlobalScope;
use crate::dom::mediastreamtrack::MediaStreamTrack;
use crate::dom::window::Window;
use dom_struct::dom_struct;
use servo_media::streams::MediaStreamType;
#[dom_struct]
pub struct MediaStream {
eventtarget: EventTarget,
tracks: DomRefCell<Vec<Dom<MediaStreamTrack>>>,
}
impl MediaStream {
pub fn new_inherited() -> MediaStream {
MediaStream {
eventtarget: EventTarget::new_inherited(),
tracks: DomRefCell::new(vec![]),
}
}
pub fn new(global: &GlobalScope) -> DomRoot<MediaStream> {
reflect_dom_object(
Box::new(MediaStream::new_inherited()),
global,
MediaStreamBinding::Wrap,
)
}
pub fn Constructor(global: &Window) -> Fallible<DomRoot<MediaStream>> {
Ok(MediaStream::new(&global.global()))
}
pub fn Constructor_(_: &Window, stream: &MediaStream) -> Fallible<DomRoot<MediaStream>> {
Ok(stream.Clone())
}
pub fn Constructor__(
global: &Window,
tracks: Vec<DomRoot<MediaStreamTrack>>,
) -> Fallible<DomRoot<MediaStream>> {
let new = MediaStream::new(&global.global());
for track in tracks {
// this is quadratic, but shouldn't matter much
// if this becomes a problem we can use a hash map
new.AddTrack(&track)
}
Ok(new)
}
pub fn get_tracks(&self) -> Ref<[Dom<MediaStreamTrack>]> {
Ref::map(self.tracks.borrow(), |tracks| &**tracks)
}
pub fn add_track(&self, track: &MediaStreamTrack) {
self.tracks.borrow_mut().push(Dom::from_ref(track))
}
}
impl MediaStreamMethods for MediaStream {
/// https://w3c.github.io/mediacapture-main/#dom-mediastream-gettracks
fn GetTracks(&self) -> Vec<DomRoot<MediaStreamTrack>> {
self.tracks
.borrow()
.iter()
.map(|x| DomRoot::from_ref(&**x))
.collect()
}
/// https://w3c.github.io/mediacapture-main/#dom-mediastream-getaudiotracks
fn GetAudioTracks(&self) -> Vec<DomRoot<MediaStreamTrack>> {
self.tracks
.borrow()
.iter()
.filter(|x| x.ty() == MediaStreamType::Audio)
.map(|x| DomRoot::from_ref(&**x))
.collect()
}
/// https://w3c.github.io/mediacapture-main/#dom-mediastream-getvideotracks
fn GetVideoTracks(&self) -> Vec<DomRoot<MediaStreamTrack>> {
self.tracks
.borrow()
.iter()
.filter(|x| x.ty() == MediaStreamType::Video)
.map(|x| DomRoot::from_ref(&**x))
.collect()
}
/// https://w3c.github.io/mediacapture-main/#dom-mediastream-gettrackbyid
fn GetTrackById(&self, id: DOMString) -> Option<DomRoot<MediaStreamTrack>> {
self.tracks
.borrow()
.iter()
.find(|x| x.id().id().to_string() == &*id)
.map(|x| DomRoot::from_ref(&**x))
}
/// https://w3c.github.io/mediacapture-main/#dom-mediastream-addtrack
fn AddTrack(&self, track: &MediaStreamTrack) {
let existing = self.tracks.borrow().iter().find(|x| *x == &track).is_some();
if existing {
return;
}
self.add_track(track)
}
/// https://w3c.github.io/mediacapture-main/#dom-mediastream-removetrack
fn RemoveTrack(&self, track: &MediaStreamTrack) {
self.tracks.borrow_mut().retain(|x| *x != track);
}
/// https://w3c.github.io/mediacapture-main/#dom-mediastream-clone
fn Clone(&self) -> DomRoot<MediaStream> {
let new = MediaStream::new(&self.global());
for track in &*self.tracks.borrow() {
new.add_track(&track)
}
new
}
}
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