rx-player
Version:
Canal+ HTML5 Video Player
50 lines (49 loc) • 1.81 kB
JavaScript
/**
* Copyright 2015 CANAL+ Group
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import EnvDetector from "./env_detector";
/**
* Add text track to the given media element.
*
* Returns an object with the following properties:
* - track {TextTrack}: the added text track
* - trackElement {HTMLElement|undefined}: the added <track> element.
* undefined if no trackElement was added.
*
* @param {HTMLMediaElement} mediaElement
* @returns {Object}
*/
export default function addTextTrack(mediaElement) {
var _a;
let track;
let trackElement;
const kind = "subtitles";
if (EnvDetector.browser === EnvDetector.BROWSERS.Ie11 ||
EnvDetector.browser === EnvDetector.BROWSERS.OtherIeOrEdgePreEdgeChromium) {
const tracksLength = mediaElement.textTracks.length;
track = (tracksLength > 0
? mediaElement.textTracks[tracksLength - 1]
: mediaElement.addTextTrack(kind));
track.mode = (_a = track.SHOWING) !== null && _a !== void 0 ? _a : "showing";
}
else {
trackElement = document.createElement("track");
mediaElement.appendChild(trackElement);
track = trackElement.track;
trackElement.kind = kind;
track.mode = "showing";
}
return { track, trackElement };
}