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import './embed.scss'
import 'core-js/es6/symbol'
import 'core-js/es6/object'
import 'core-js/es6/function'
import 'core-js/es6/parse-int'
import 'core-js/es6/parse-float'
import 'core-js/es6/number'
import 'core-js/es6/math'
import 'core-js/es6/string'
import 'core-js/es6/date'
import 'core-js/es6/array'
import 'core-js/es6/regexp'
import 'core-js/es6/map'
import 'core-js/es6/weak-map'
import 'core-js/es6/set'
// For google bot that uses Chrome 41 and does not understand fetch
import 'whatwg-fetch'
import * as Channel from 'jschannel'
import { peertubeTranslate, ResultList, VideoDetails } from '../../../../shared'
import { PeerTubeResolution } from '../player/definitions'
import { VideoJSCaption } from '../../assets/player/peertube-videojs-typings'
import { VideoCaption } from '../../../../shared/models/videos/caption/video-caption.model'
import {
P2PMediaLoaderOptions,
PeertubePlayerManager,
PeertubePlayerManagerOptions,
PlayerMode
} from '../../assets/player/peertube-player-manager'
import { VideoStreamingPlaylistType } from '../../../../shared/models/videos/video-streaming-playlist.type'
/**
* Embed API exposes control of the embed player to the outside world via
* JSChannels and window.postMessage
*/
class PeerTubeEmbedApi {
private channel: Channel.MessagingChannel
private isReady = false
private resolutions: PeerTubeResolution[] = null
constructor (private embed: PeerTubeEmbed) {
}
initialize () {
this.constructChannel()
this.setupStateTracking()
// We're ready!
this.notifyReady()
}
private get element () {
return this.embed.videoElement
}
private constructChannel () {
let channel = Channel.build({ window: window.parent, origin: '*', scope: this.embed.scope })
channel.bind('play', (txn, params) => this.embed.player.play())
channel.bind('pause', (txn, params) => this.embed.player.pause())
channel.bind('seek', (txn, time) => this.embed.player.currentTime(time))
channel.bind('setVolume', (txn, value) => this.embed.player.volume(value))
channel.bind('getVolume', (txn, value) => this.embed.player.volume())
channel.bind('isReady', (txn, params) => this.isReady)
channel.bind('setResolution', (txn, resolutionId) => this.setResolution(resolutionId))
channel.bind('getResolutions', (txn, params) => this.resolutions)
channel.bind('setPlaybackRate', (txn, playbackRate) => this.embed.player.playbackRate(playbackRate))
channel.bind('getPlaybackRate', (txn, params) => this.embed.player.playbackRate())
channel.bind('getPlaybackRates', (txn, params) => this.embed.playerOptions.playbackRates)
this.channel = channel
}
private setResolution (resolutionId: number) {
if (resolutionId === -1 && this.embed.player.webtorrent().isAutoResolutionForbidden()) return
// Auto resolution
if (resolutionId === -1) {
this.embed.player.webtorrent().enableAutoResolution()
return
}
this.embed.player.webtorrent().disableAutoResolution()
this.embed.player.webtorrent().updateResolution(resolutionId)
}
/**
* Let the host know that we're ready to go!
*/
private notifyReady () {
this.isReady = true
this.channel.notify({ method: 'ready', params: true })
}
private setupStateTracking () {
let currentState: 'playing' | 'paused' | 'unstarted' = 'unstarted'
setInterval(() => {
let position = this.element.currentTime
let volume = this.element.volume
this.channel.notify({
method: 'playbackStatusUpdate',
params: {
position,
volume,
playbackState: currentState
}
})
}, 500)
this.element.addEventListener('play', ev => {
currentState = 'playing'
this.channel.notify({ method: 'playbackStatusChange', params: 'playing' })
})
this.element.addEventListener('pause', ev => {
currentState = 'paused'
this.channel.notify({ method: 'playbackStatusChange', params: 'paused' })
})
// PeerTube specific capabilities
if (this.embed.player.webtorrent) {
this.embed.player.webtorrent().on('autoResolutionUpdate', () => this.loadWebTorrentResolutions())
this.embed.player.webtorrent().on('videoFileUpdate', () => this.loadWebTorrentResolutions())
}
}
private loadWebTorrentResolutions () {
let resolutions = []
let currentResolutionId = this.embed.player.webtorrent().getCurrentResolutionId()
for (const videoFile of this.embed.player.webtorrent().videoFiles) {
let label = videoFile.resolution.label
if (videoFile.fps && videoFile.fps >= 50) {
label += videoFile.fps
}
resolutions.push({
id: videoFile.resolution.id,
label,
src: videoFile.magnetUri,
active: videoFile.resolution.id === currentResolutionId
})
}
this.resolutions = resolutions
this.channel.notify({
method: 'resolutionUpdate',
params: this.resolutions
})
}
}
class PeerTubeEmbed {
videoElement: HTMLVideoElement
player: any
playerOptions: any
api: PeerTubeEmbedApi = null
autoplay: boolean
controls: boolean
muted: boolean
loop: boolean
subtitle: string
enableApi = false
startTime: number | string = 0
mode: PlayerMode
scope = 'peertube'
static async main () {
const videoContainerId = 'video-container'
const embed = new PeerTubeEmbed(videoContainerId)
await embed.init()
}
constructor (private videoContainerId: string) {
this.videoElement = document.getElementById(videoContainerId) as HTMLVideoElement
}
getVideoUrl (id: string) {
return window.location.origin + '/api/v1/videos/' + id
}
loadVideoInfo (videoId: string): Promise<Response> {
return fetch(this.getVideoUrl(videoId))
}
loadVideoCaptions (videoId: string): Promise<Response> {
return fetch(this.getVideoUrl(videoId) + '/captions')
}
removeElement (element: HTMLElement) {
element.parentElement.removeChild(element)
}
displayError (text: string, translations?: { [ id: string ]: string }) {
// Remove video element
if (this.videoElement) this.removeElement(this.videoElement)
const translatedText = peertubeTranslate(text, translations)
const translatedSorry = peertubeTranslate('Sorry', translations)
document.title = translatedSorry + ' - ' + translatedText
const errorBlock = document.getElementById('error-block')
errorBlock.style.display = 'flex'
const errorTitle = document.getElementById('error-title')
errorTitle.innerHTML = peertubeTranslate('Sorry', translations)
const errorText = document.getElementById('error-content')
errorText.innerHTML = translatedText
}
videoNotFound (translations?: { [ id: string ]: string }) {
const text = 'This video does not exist.'
this.displayError(text, translations)
}
videoFetchError (translations?: { [ id: string ]: string }) {
const text = 'We cannot fetch the video. Please try again later.'
this.displayError(text, translations)
}
getParamToggle (params: URLSearchParams, name: string, defaultValue?: boolean) {
return params.has(name) ? (params.get(name) === '1' || params.get(name) === 'true') : defaultValue
}
getParamString (params: URLSearchParams, name: string, defaultValue?: string) {
return params.has(name) ? params.get(name) : defaultValue
}
async init () {
try {
await this.initCore()
} catch (e) {
console.error(e)
}
}
private initializeApi () {
if (!this.enableApi) return
this.api = new PeerTubeEmbedApi(this)
this.api.initialize()
}
private loadParams () {
try {
let params = new URL(window.location.toString()).searchParams
this.autoplay = this.getParamToggle(params, 'autoplay')
this.controls = this.getParamToggle(params, 'controls')
this.muted = this.getParamToggle(params, 'muted')
this.loop = this.getParamToggle(params, 'loop')
this.enableApi = this.getParamToggle(params, 'api', this.enableApi)
this.scope = this.getParamString(params, 'scope', this.scope)
this.subtitle = this.getParamString(params, 'subtitle')
this.startTime = this.getParamString(params, 'start')
this.mode = this.getParamString(params, 'mode') === 'p2p-media-loader' ? 'p2p-media-loader' : 'webtorrent'
} catch (err) {
console.error('Cannot get params from URL.', err)
}
}
private async initCore () {
const urlParts = window.location.pathname.split('/')
const videoId = urlParts[ urlParts.length - 1 ]
const [ serverTranslations, videoResponse, captionsResponse ] = await Promise.all([
PeertubePlayerManager.getServerTranslations(window.location.origin, navigator.language),
this.loadVideoInfo(videoId),
this.loadVideoCaptions(videoId)
])
if (!videoResponse.ok) {
if (videoResponse.status === 404) return this.videoNotFound(serverTranslations)
return this.videoFetchError(serverTranslations)
}
const videoInfo: VideoDetails = await videoResponse.json()
let videoCaptions: VideoJSCaption[] = []
if (captionsResponse.ok) {
const { data } = (await captionsResponse.json()) as ResultList<VideoCaption>
videoCaptions = data.map(c => ({
label: peertubeTranslate(c.language.label, serverTranslations),
language: c.language.id,
src: window.location.origin + c.captionPath
}))
}
this.loadParams()
const options: PeertubePlayerManagerOptions = {
common: {
autoplay: this.autoplay,
controls: this.controls,
muted: this.muted,
loop: this.loop,
captions: videoCaptions.length !== 0,
startTime: this.startTime,
subtitle: this.subtitle,
videoCaptions,
inactivityTimeout: 1500,
videoViewUrl: this.getVideoUrl(videoId) + '/views',
playerElement: this.videoElement,
onPlayerElementChange: (element: HTMLVideoElement) => this.videoElement = element,
videoDuration: videoInfo.duration,
enableHotkeys: true,
peertubeLink: true,
poster: window.location.origin + videoInfo.previewPath,
theaterMode: false,
serverUrl: window.location.origin,
language: navigator.language,
embedUrl: window.location.origin + videoInfo.embedPath
},
webtorrent: {
videoFiles: videoInfo.files
}
}
if (this.mode === 'p2p-media-loader') {
const hlsPlaylist = videoInfo.streamingPlaylists.find(p => p.type === VideoStreamingPlaylistType.HLS)
Object.assign(options, {
p2pMediaLoader: {
playlistUrl: hlsPlaylist.playlistUrl,
segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
trackerAnnounce: videoInfo.trackerUrls,
videoFiles: videoInfo.files
} as P2PMediaLoaderOptions
})
}
this.player = await PeertubePlayerManager.initialize(this.mode, options)
this.player.on('customError', (event: any, data: any) => this.handleError(data.err, serverTranslations))
window[ 'videojsPlayer' ] = this.player
if (this.controls) {
this.player.dock({
title: videoInfo.name,
description: this.player.localize('Uses P2P, others may know your IP is downloading this video.')
})
}
this.initializeApi()
}
private handleError (err: Error, translations?: { [ id: string ]: string }) {
if (err.message.indexOf('from xs param') !== -1) {
this.player.dispose()
this.videoElement = null
this.displayError('This video is not available because the remote instance is not responding.', translations)
return
}
}
}
PeerTubeEmbed.main()
.catch(err => console.error('Cannot init embed.', err))
|