137 lines
4.0 KiB
JavaScript
137 lines
4.0 KiB
JavaScript
/* global APP */
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var StreamEventTypes = require("../../service/RTC/StreamEventTypes.js");
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var RTCEvents = require("../../service/RTC/RTCEvents");
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var RTCBrowserType = require("./RTCBrowserType");
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/**
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* This implements 'onended' callback normally fired by WebRTC after the stream
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* is stopped. There is no such behaviour yet in FF, so we have to add it.
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* @param stream original WebRTC stream object to which 'onended' handling
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* will be added.
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*/
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function implementOnEndedHandling(localStream) {
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var stream = localStream.getOriginalStream();
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var originalStop = stream.stop;
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stream.stop = function () {
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originalStop.apply(stream);
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if (localStream.isActive()) {
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stream.ended = true;
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stream.onended();
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}
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};
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}
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function LocalStream(stream, type, eventEmitter, videoType, isGUMStream) {
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this.stream = stream;
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this.eventEmitter = eventEmitter;
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this.type = type;
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this.videoType = videoType;
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this.isGUMStream = true;
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if(isGUMStream === false)
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this.isGUMStream = isGUMStream;
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var self = this;
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if(type == "audio") {
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this.getTracks = function () {
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return self.stream.getAudioTracks();
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};
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} else {
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this.getTracks = function () {
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return self.stream.getVideoTracks();
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};
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}
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APP.RTC.addMediaStreamInactiveHandler(
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this.stream,
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function () {
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self.streamEnded();
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});
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if (RTCBrowserType.isFirefox()) {
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implementOnEndedHandling(this);
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}
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}
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LocalStream.prototype.streamEnded = function () {
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this.eventEmitter.emit(StreamEventTypes.EVENT_TYPE_LOCAL_ENDED, this);
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};
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LocalStream.prototype.getOriginalStream = function()
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{
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return this.stream;
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};
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LocalStream.prototype.isAudioStream = function () {
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return this.type === "audio";
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};
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LocalStream.prototype.setMute = function (mute)
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{
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var isAudio = this.isAudioStream();
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var eventType = isAudio ? RTCEvents.AUDIO_MUTE : RTCEvents.VIDEO_MUTE;
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if ((window.location.protocol != "https:" && this.isGUMStream) ||
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(isAudio && this.isGUMStream) || this.videoType === "screen" ||
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// FIXME FF does not support 'removeStream' method used to mute
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RTCBrowserType.isFirefox()) {
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var tracks = this.getTracks();
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for (var idx = 0; idx < tracks.length; idx++) {
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tracks[idx].enabled = !mute;
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}
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this.eventEmitter.emit(eventType, mute);
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} else {
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if (mute) {
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APP.xmpp.removeStream(this.stream);
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APP.RTC.stopMediaStream(this.stream);
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this.eventEmitter.emit(eventType, true);
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} else {
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var self = this;
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APP.RTC.rtcUtils.obtainAudioAndVideoPermissions(
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(this.isAudioStream() ? ["audio"] : ["video"]),
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function (stream) {
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if (isAudio) {
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APP.RTC.changeLocalAudio(stream,
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function () {
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self.eventEmitter.emit(eventType, false);
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});
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} else {
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APP.RTC.changeLocalVideo(stream, false,
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function () {
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self.eventEmitter.emit(eventType, false);
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});
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}
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});
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}
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}
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};
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LocalStream.prototype.isMuted = function () {
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var tracks = [];
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if (this.isAudioStream()) {
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tracks = this.stream.getAudioTracks();
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} else {
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if (!this.isActive())
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return true;
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tracks = this.stream.getVideoTracks();
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}
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for (var idx = 0; idx < tracks.length; idx++) {
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if(tracks[idx].enabled)
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return false;
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}
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return true;
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};
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LocalStream.prototype.getId = function () {
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return this.stream.getTracks()[0].id;
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};
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/**
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* Checks whether the MediaStream is avtive/not ended.
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* @returns {boolean} whether MediaStream is active.
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*/
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LocalStream.prototype.isActive = function () {
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return !this.stream.ended;
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};
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module.exports = LocalStream;
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