happy-dom
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Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.
100 lines • 2.72 kB
JavaScript
import * as PropertySymbol from '../../PropertySymbol.js';
import Crypto from 'crypto';
import EventTarget from '../../event/EventTarget.js';
import MediaStreamTrackEvent from '../../event/events/MediaStreamTrackEvent.js';
/**
* MediaStream.
*
* @see https://developer.mozilla.org/en-US/docs/Web/API/MediaStream
*/
export default class MediaStream extends EventTarget {
// Public properties
active = true;
id = Crypto.randomUUID();
// Events
onaddtrack = null;
onremovetrack = null;
// Internal properties
[PropertySymbol.tracks] = [];
/**
* Constructor.
*
* @param [streamOrTracks] Stream or tracks.
*/
constructor(streamOrTracks) {
super();
if (!this[PropertySymbol.window]) {
throw new TypeError(`Failed to construct '${this.constructor.name}': '${this.constructor.name}' was constructed outside a Window context.`);
}
if (streamOrTracks !== undefined) {
this[PropertySymbol.tracks] =
streamOrTracks instanceof MediaStream
? streamOrTracks[PropertySymbol.tracks].slice()
: streamOrTracks;
}
}
/**
* Adds a track.
*
* @param track Track.
*/
addTrack(track) {
if (this[PropertySymbol.tracks].includes(track)) {
return;
}
this[PropertySymbol.tracks].push(track);
this.dispatchEvent(new MediaStreamTrackEvent('addtrack', { track }));
}
/**
* Returns a clone.
*
* @returns Clone.
*/
clone() {
return new this.constructor(this);
}
/**
* Returns audio tracks.
*
* @returns Audio tracks.
*/
getAudioTracks() {
return this[PropertySymbol.tracks].filter((track) => track.kind === 'audio');
}
/**
* Returns track by id.
*
* @param id Id.
* @returns Track.
*/
getTrackById(id) {
for (const track of this[PropertySymbol.tracks]) {
if (track.id === id) {
return track;
}
}
return null;
}
/**
* Returns video tracks.
*
* @returns Video tracks.
*/
getVideoTracks() {
return this[PropertySymbol.tracks].filter((track) => track.kind === 'video');
}
/**
* Removes a track.
*
* @param track Track.
*/
removeTrack(track) {
const index = this[PropertySymbol.tracks].indexOf(track);
if (index === -1) {
return;
}
this[PropertySymbol.tracks].splice(index, 1);
this.dispatchEvent(new MediaStreamTrackEvent('removetrack', { track }));
}
}
//# sourceMappingURL=MediaStream.js.map