import videojs from 'video.js' import './videojs-components/settings-menu-button' import { PeerTubePluginOptions, ResolutionUpdateData, UserWatching, VideoJSCaption } from './peertube-videojs-typings' import { isMobile, timeToInt } from './utils' import { getStoredLastSubtitle, getStoredMute, getStoredVolume, saveLastSubtitle, saveMuteInStore, saveVolumeInStore } from './peertube-player-local-storage' const Plugin = videojs.getPlugin('plugin') class PeerTubePlugin extends Plugin { private readonly videoViewUrl: string private readonly videoDuration: number private readonly CONSTANTS = { USER_WATCHING_VIDEO_INTERVAL: 5000 // Every 5 seconds, notify the user is watching the video } private videoCaptions: VideoJSCaption[] private defaultSubtitle: string private videoViewInterval: any private userWatchingVideoInterval: any private lastResolutionChange: ResolutionUpdateData private menuOpened = false private mouseInControlBar = false private readonly savedInactivityTimeout: number constructor (player: videojs.Player, options?: PeerTubePluginOptions) { super(player) this.videoViewUrl = options.videoViewUrl this.videoDuration = options.videoDuration this.videoCaptions = options.videoCaptions this.savedInactivityTimeout = player.options_.inactivityTimeout if (options.autoplay === true) this.player.addClass('vjs-has-autoplay') this.player.on('autoplay-failure', () => { this.player.removeClass('vjs-has-autoplay') }) this.player.ready(() => { const playerOptions = this.player.options_ if (options.mode === 'webtorrent') { this.player.webtorrent().on('resolutionChange', (_: any, d: any) => this.handleResolutionChange(d)) this.player.webtorrent().on('autoResolutionChange', (_: any, d: any) => this.trigger('autoResolutionChange', d)) } if (options.mode === 'p2p-media-loader') { this.player.p2pMediaLoader().on('resolutionChange', (_: any, d: any) => this.handleResolutionChange(d)) } this.player.tech(true).on('loadedqualitydata', () => { setTimeout(() => { // Replay a resolution change, now we loaded all quality data if (this.lastResolutionChange) this.handleResolutionChange(this.lastResolutionChange) }, 0) }) const volume = getStoredVolume() if (volume !== undefined) this.player.volume(volume) const muted = playerOptions.muted !== undefined ? playerOptions.muted : getStoredMute() if (muted !== undefined) this.player.muted(muted) this.defaultSubtitle = options.subtitle || getStoredLastSubtitle() this.player.on('volumechange', () => { saveVolumeInStore(this.player.volume()) saveMuteInStore(this.player.muted()) }) if (options.stopTime) { const stopTime = timeToInt(options.stopTime) const self = this this.player.on('timeupdate', function onTimeUpdate () { if (self.player.currentTime() > stopTime) { self.player.pause() self.player.trigger('stopped') self.player.off('timeupdate', onTimeUpdate) } }) } this.player.textTracks().on('change', () => { const showing = this.player.textTracks().tracks_.find(t => { return t.kind === 'captions' && t.mode === 'showing' }) if (!showing) { saveLastSubtitle('off') return } saveLastSubtitle(showing.language) }) this.player.on('sourcechange', () => this.initCaptions()) this.player.duration(options.videoDuration) this.initializePlayer() this.runViewAdd() if (options.userWatching) this.runUserWatchVideo(options.userWatching) }) } dispose () { if (this.videoViewInterval) clearInterval(this.videoViewInterval) if (this.userWatchingVideoInterval) clearInterval(this.userWatchingVideoInterval) } onMenuOpen () { this.menuOpened = false this.alterInactivity() } onMenuClosed () { this.menuOpened = true this.alterInactivity() } private initializePlayer () { if (isMobile()) this.player.addClass('vjs-is-mobile') this.initSmoothProgressBar() this.initCaptions() this.listenControlBarMouse() } private runViewAdd () { this.clearVideoViewInterval() // After 30 seconds (or 3/4 of the video), add a view to the video let minSecondsToView = 30 if (this.videoDuration < minSecondsToView) minSecondsToView = (this.videoDuration * 3) / 4 let secondsViewed = 0 this.videoViewInterval = setInterval(() => { if (this.player && !this.player.paused()) { secondsViewed += 1 if (secondsViewed > minSecondsToView) { this.clearVideoViewInterval() this.addViewToVideo().catch(err => console.error(err)) } } }, 1000) } private runUserWatchVideo (options: UserWatching) { let lastCurrentTime = 0 this.userWatchingVideoInterval = setInterval(() => { const currentTime = Math.floor(this.player.currentTime()) if (currentTime - lastCurrentTime >= 1) { lastCurrentTime = currentTime this.notifyUserIsWatching(currentTime, options.url, options.authorizationHeader) .catch(err => console.error('Cannot notify user is watching.', err)) } }, this.CONSTANTS.USER_WATCHING_VIDEO_INTERVAL) } private clearVideoViewInterval () { if (this.videoViewInterval !== undefined) { clearInterval(this.videoViewInterval) this.videoViewInterval = undefined } } private addViewToVideo () { if (!this.videoViewUrl) return Promise.resolve(undefined) return fetch(this.videoViewUrl, { method: 'POST' }) } private notifyUserIsWatching (currentTime: number, url: string, authorizationHeader: string) { const body = new URLSearchParams() body.append('currentTime', currentTime.toString()) const headers = new Headers({ 'Authorization': authorizationHeader }) return fetch(url, { method: 'PUT', body, headers }) } private handleResolutionChange (data: ResolutionUpdateData) { this.lastResolutionChange = data const qualityLevels = this.player.qualityLevels() for (let i = 0; i < qualityLevels.length; i++) { if (qualityLevels[i].height === data.resolutionId) { data.id = qualityLevels[i].id break } } this.trigger('resolutionChange', data) } private listenControlBarMouse () { this.player.controlBar.on('mouseenter', () => { this.mouseInControlBar = true this.alterInactivity() }) this.player.controlBar.on('mouseleave', () => { this.mouseInControlBar = false this.alterInactivity() }) } private alterInactivity () { if (this.menuOpened || this.mouseInControlBar) { this.player.options_.inactivityTimeout = this.savedInactivityTimeout return } this.player.options_.inactivityTimeout = 1 } private initCaptions () { for (const caption of this.videoCaptions) { this.player.addRemoteTextTrack({ kind: 'captions', label: caption.label, language: caption.language, id: caption.language, src: caption.src, default: this.defaultSubtitle === caption.language }, false) } this.player.trigger('captionsChanged') } // Thanks: https://github.com/videojs/video.js/issues/4460#issuecomment-312861657 private initSmoothProgressBar () { const SeekBar = videojs.getComponent('SeekBar') as any SeekBar.prototype.getPercent = function getPercent () { // Allows for smooth scrubbing, when player can't keep up. // const time = (this.player_.scrubbing()) ? // this.player_.getCache().currentTime : // this.player_.currentTime() const time = this.player_.currentTime() const percent = time / this.player_.duration() return percent >= 1 ? 1 : percent } SeekBar.prototype.handleMouseMove = function handleMouseMove (event: any) { let newTime = this.calculateDistance(event) * this.player_.duration() if (newTime === this.player_.duration()) { newTime = newTime - 0.1 } this.player_.currentTime(newTime) this.update() } } } videojs.registerPlugin('peertube', PeerTubePlugin) export { PeerTubePlugin }