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Diffstat (limited to 'webapp/client/webrtc_client.jsx')
| -rw-r--r-- | webapp/client/webrtc_client.jsx | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/webapp/client/webrtc_client.jsx b/webapp/client/webrtc_client.jsx new file mode 100644 index 000000000..85204c25b --- /dev/null +++ b/webapp/client/webrtc_client.jsx @@ -0,0 +1,145 @@ +// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved. +// See License.txt for license information. + +export default class WebrtcClient { + constructor() { + this.init = this.init.bind(this); + this.listDevices = this.listDevices.bind(this); + this.isExtensionEnabled = this.isExtensionEnabled.bind(this); + this.isWebrtcSupported = this.isWebrtcSupported.bind(this); + + this.initDone = false; + this.sessions = {}; + } + + noop() {} //eslint-disable-line no-empty-function + + // this function is going to be needed when we enable screen sharing + isExtensionEnabled() { + if (window.navigator.userAgent.match('Chrome')) { + const chromever = parseInt(window.navigator.userAgent.match(/Chrome\/(.*) /)[1], 10); + let maxver = 33; + if (window.navigator.userAgent.match('Linux')) { + maxver = 35; // "known" crash in chrome 34 and 35 on linux + } + if (chromever >= 26 && chromever <= maxver) { + // Older versions of Chrome don't support this extension-based approach, so lie + return true; + } + return (document.getElementById('mattermost-extension-installed') !== null); + } + + // Firefox of others, no need for the extension (but this doesn't mean it will work) + return true; + } + + init(opts) { + const options = opts || {}; + + if (this.initDone === true) { + // Already initialized + return; + } + + this.trace = this.noop; + this.debug = this.noop; + this.log = this.noop; + this.warn = this.noop; + this.error = this.noop; + + /* eslint-disable */ + if (options.debug === true || options.debug === 'all') { + // Enable all debugging levels + this.trace = console.trace.bind(console); + this.debug = console.debug.bind(console); + this.log = console.log.bind(console); + this.warn = console.warn.bind(console); + this.error = console.error.bind(console); + } else if (Array.isArray(options.debug)) { + for (const i in options.debug) { + if (options.debug.hasOwnProperty(i)) { + const d = options.debug[i]; + switch (d) { + case 'trace': + this.trace = console.trace.bind(console); + break; + case 'debug': + this.debug = console.debug.bind(console); + break; + case 'log': + this.log = console.log.bind(console); + break; + case 'warn': + this.warn = console.warn.bind(console); + break; + case 'error': + this.error = console.error.bind(console); + break; + default: + console.error("Unknown debugging option '" + d + "' (supported: 'trace', 'debug', 'log', warn', 'error')"); + break; + } + } + } + } + /* eslint-enable */ + + this.log('Initializing WebRTC Client library'); + + // Detect tab close + window.onbeforeunload = () => { + this.log('Closing window'); + for (const s in this.sessions) { + if (this.sessions.hasOwnProperty(s)) { + if (this.sessions[s] && this.sessions[s].destroyOnUnload) { + this.log('Destroying session ' + s); + this.sessions[s].destroy(); + } + } + } + }; + + this.initDone = true; + } + + // Helper method to enumerate devices + listDevices(cb) { + const callback = (typeof cb == 'function') ? cb : this.noop; + + if (navigator.mediaDevices) { + navigator.getUserMedia({audio: true, video: true}, (stream) => { + navigator.mediaDevices.enumerateDevices().then((devices) => { + this.debug(devices); + callback(devices); + + // Get rid of the now useless stream + try { + stream.stop(); + } catch (e) { + this.error(e); + } + + this.stopMedia(stream); + }); + }, (err) => { + this.error(err); + callback([]); + }); + } else { + this.warn('navigator.mediaDevices unavailable'); + callback([]); + } + } + + // Helper method to check whether WebRTC is supported by this browser + isWebrtcSupported() { + return window.RTCPeerConnection && navigator.getUserMedia; + } + + stopMedia(stream) { + const tracks = stream.getTracks(); + tracks.forEach((track) => { + track.stop(); + }); + } +}
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