aboutsummaryrefslogtreecommitdiffhomepage
path: root/client/src/assets/player/peertube-videojs-plugin.ts
blob: 977455bffb599f8848901b5239c4a4a8e63c9f64 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
// Big thanks to: https://github.com/kmoskwiak/videojs-resolution-switcher

import videojs, { Player } from 'video.js'
import * as WebTorrent from 'webtorrent'
import { VideoFile } from '../../../../shared'

import { renderVideo } from './video-renderer'

// https://github.com/danrevah/ngx-pipes/blob/master/src/pipes/math/bytes.ts
// Don't import all Angular stuff, just copy the code with shame
const dictionaryBytes: Array<{max: number, type: string}> = [
  { max: 1024, type: 'B' },
  { max: 1048576, type: 'KB' },
  { max: 1073741824, type: 'MB' },
  { max: 1.0995116e12, type: 'GB' }
]
function bytes (value) {
  const format = dictionaryBytes.find(d => value < d.max) || dictionaryBytes[dictionaryBytes.length - 1]
  const calc = Math.floor(value / (format.max / 1024)).toString()

  return [ calc, format.type ]
}

// videojs typings don't have some method we need
const videojsUntyped = videojs as any
const webtorrent = new WebTorrent({ dht: false })

const MenuItem = videojsUntyped.getComponent('MenuItem')
const ResolutionMenuItem = videojsUntyped.extend(MenuItem, {
  constructor: function (player: Player, options) {
    options.selectable = true
    MenuItem.call(this, player, options)

    const currentResolution = this.player_.getCurrentResolution()
    this.selected(this.options_.id === currentResolution)
  },

  handleClick: function (event) {
    MenuItem.prototype.handleClick.call(this, event)
    this.player_.updateResolution(this.options_.id)
  }
})
MenuItem.registerComponent('ResolutionMenuItem', ResolutionMenuItem)

const MenuButton = videojsUntyped.getComponent('MenuButton')
const ResolutionMenuButton = videojsUntyped.extend(MenuButton, {
  constructor: function (player, options) {
    this.label = document.createElement('span')
    options.label = 'Quality'

    MenuButton.call(this, player, options)
    this.el().setAttribute('aria-label', 'Quality')
    this.controlText('Quality')

    videojsUntyped.dom.addClass(this.label, 'vjs-resolution-button-label')
    this.el().appendChild(this.label)

    player.on('videoFileUpdate', videojs.bind(this, this.update))
  },

  createItems: function () {
    const menuItems = []
    for (const videoFile of this.player_.videoFiles) {
      menuItems.push(new ResolutionMenuItem(
        this.player_,
        {
          id: videoFile.resolution,
          label: videoFile.resolutionLabel,
          src: videoFile.magnetUri,
          selected: videoFile.resolution === this.currentSelection
        })
      )
    }

    return menuItems
  },

  update: function () {
    this.label.innerHTML = this.player_.getCurrentResolutionLabel()
    this.hide()
    return MenuButton.prototype.update.call(this)
  },

  buildCSSClass: function () {
    return MenuButton.prototype.buildCSSClass.call(this) + ' vjs-resolution-button'
  }
})
MenuButton.registerComponent('ResolutionMenuButton', ResolutionMenuButton)

const Button = videojsUntyped.getComponent('Button')
const PeertubeLinkButton = videojsUntyped.extend(Button, {
  constructor: function (player) {
    Button.call(this, player)
  },

  createEl: function () {
    const link = document.createElement('a')
    link.href = window.location.href.replace('embed', 'watch')
    link.innerHTML = 'PeerTube'
    link.title = 'Go to the video page'
    link.className = 'vjs-peertube-link'
    link.target = '_blank'

    return link
  },

  handleClick: function () {
    this.player_.pause()
  }
})
Button.registerComponent('PeerTubeLinkButton', PeertubeLinkButton)

const WebTorrentButton = videojsUntyped.extend(Button, {
  constructor: function (player) {
    Button.call(this, player)
  },

  createEl: function () {
    const div = document.createElement('div')

    const downloadIcon = document.createElement('span')
    downloadIcon.classList.add('icon', 'icon-download')
    div.appendChild(downloadIcon)

    const downloadSpeedText = document.createElement('span')
    downloadSpeedText.classList.add('download-speed-text')
    const downloadSpeedNumber = document.createElement('span')
    downloadSpeedNumber.classList.add('download-speed-number')
    const downloadSpeedUnit = document.createElement('span')
    downloadSpeedText.appendChild(downloadSpeedNumber)
    downloadSpeedText.appendChild(downloadSpeedUnit)
    div.appendChild(downloadSpeedText)

    const uploadIcon = document.createElement('span')
    uploadIcon.classList.add('icon', 'icon-upload')
    div.appendChild(uploadIcon)

    const uploadSpeedText = document.createElement('span')
    uploadSpeedText.classList.add('upload-speed-text')
    const uploadSpeedNumber = document.createElement('span')
    uploadSpeedNumber.classList.add('upload-speed-number')
    const uploadSpeedUnit = document.createElement('span')
    uploadSpeedText.appendChild(uploadSpeedNumber)
    uploadSpeedText.appendChild(uploadSpeedUnit)
    div.appendChild(uploadSpeedText)

    const peersText = document.createElement('span')
    peersText.textContent = ' peers'
    peersText.classList.add('peers-text')
    const peersNumber = document.createElement('span')
    peersNumber.classList.add('peers-number')
    div.appendChild(peersNumber)
    div.appendChild(peersText)

    div.className = 'vjs-webtorrent'
    // Hide the stats before we get the info
    div.style.display = 'none'

    this.player_.on('torrentInfo', (event, data) => {
      const downloadSpeed = bytes(data.downloadSpeed)
      const uploadSpeed = bytes(data.uploadSpeed)
      const numPeers = data.numPeers

      downloadSpeedNumber.textContent = downloadSpeed[0]
      downloadSpeedUnit.textContent = ' ' + downloadSpeed[1]

      uploadSpeedNumber.textContent = uploadSpeed[0]
      uploadSpeedUnit.textContent = ' ' + uploadSpeed[1]

      peersNumber.textContent = numPeers

      div.style.display = 'block'
    })

    return div
  }
})
Button.registerComponent('WebTorrentButton', WebTorrentButton)

type PeertubePluginOptions = {
  videoFiles: VideoFile[]
  playerElement: HTMLVideoElement
  autoplay: boolean
  peerTubeLink: boolean
}
const peertubePlugin = function (options: PeertubePluginOptions) {
  const player = this
  let currentVideoFile: VideoFile = undefined
  const playerElement = options.playerElement
  player.videoFiles = options.videoFiles

  // Hack to "simulate" src link in video.js >= 6
  // Without this, we can't play the video after pausing it
  // https://github.com/videojs/video.js/blob/master/src/js/player.js#L1633
  player.src = function () {
    return true
  }

  player.getCurrentResolution = function () {
    return currentVideoFile ? currentVideoFile.resolution : -1
  }

  player.getCurrentResolutionLabel = function () {
    return currentVideoFile ? currentVideoFile.resolutionLabel : ''
  }

  player.updateVideoFile = function (videoFile: VideoFile, done: () => void) {
    if (done === undefined) {
      done = () => { /* empty */ }
    }

    // Pick the first one
    if (videoFile === undefined) {
      videoFile = player.videoFiles[0]
    }

    // Don't add the same video file once again
    if (currentVideoFile !== undefined && currentVideoFile.magnetUri === videoFile.magnetUri) {
      return
    }

    const previousVideoFile = currentVideoFile
    currentVideoFile = videoFile

    console.log('Adding ' + videoFile.magnetUri + '.')
    player.torrent = webtorrent.add(videoFile.magnetUri, torrent => {
      console.log('Added ' + videoFile.magnetUri + '.')

      this.flushVideoFile(previousVideoFile)

      const options = { autoplay: true, controls: true }
      renderVideo(torrent.files[0], playerElement, options,(err, renderer) => {
        if (err) return handleError(err)

        this.renderer = renderer
        player.play()

        return done()
      })
    })

    player.torrent.on('error', err => handleError(err))
    player.torrent.on('warning', err => {
      // We don't support HTTP tracker but we don't care -> we use the web socket tracker
      if (err.message.indexOf('Unsupported tracker protocol: http') !== -1) return
      // Users don't care about issues with WebRTC, but developers do so log it in the console
      if (err.message.indexOf('Ice connection failed') !== -1) {
        console.error(err)
        return
      }

      return handleError(err)
    })

    player.trigger('videoFileUpdate')

    return player
  }

  player.updateResolution = function (resolution) {
    // Remember player state
    const currentTime = player.currentTime()
    const isPaused = player.paused()

    // Hide bigPlayButton
    if (!isPaused && this.player_.options_.bigPlayButton) {
      this.player_.bigPlayButton.hide()
    }

    const newVideoFile = player.videoFiles.find(f => f.resolution === resolution)
    player.updateVideoFile(newVideoFile, () => {
      player.currentTime(currentTime)
      player.handleTechSeeked_()
    })
  }

  player.flushVideoFile = function (videoFile: VideoFile, destroyRenderer = true) {
    if (videoFile !== undefined && webtorrent.get(videoFile.magnetUri)) {
      if (destroyRenderer === true) this.renderer.destroy()
      webtorrent.remove(videoFile.magnetUri)
    }
  }

  player.ready(function () {
    const controlBar = player.controlBar

    const menuButton = new ResolutionMenuButton(player, options)
    const fullscreenElement = controlBar.fullscreenToggle.el()
    controlBar.resolutionSwitcher = controlBar.el().insertBefore(menuButton.el(), fullscreenElement)
    controlBar.resolutionSwitcher.dispose = function () {
      this.parentNode.removeChild(this)
    }

    player.dispose = function () {
      // Don't need to destroy renderer, video player will be destroyed
      player.flushVideoFile(currentVideoFile, false)
    }

    if (options.peerTubeLink === true) {
      const peerTubeLinkButton = new PeertubeLinkButton(player)
      controlBar.peerTubeLink = controlBar.el().insertBefore(peerTubeLinkButton.el(), fullscreenElement)

      controlBar.peerTubeLink.dispose = function () {
        this.parentNode.removeChild(this)
      }
    }

    const webTorrentButton = new WebTorrentButton(player)
    controlBar.webTorrent = controlBar.el().insertBefore(webTorrentButton.el(), controlBar.progressControl.el())
    controlBar.webTorrent.dispose = function () {
      this.parentNode.removeChild(this)
    }

    if (options.autoplay === true) {
      player.updateVideoFile()
    } else {
      player.one('play', () => {
        // Pause, we wait the video to load before
        player.pause()

        player.updateVideoFile(undefined, () => player.play())
      })
    }

    setInterval(() => {
      if (player.torrent !== undefined) {
        player.trigger('torrentInfo', {
          downloadSpeed: player.torrent.downloadSpeed,
          numPeers: player.torrent.numPeers,
          uploadSpeed: player.torrent.uploadSpeed
        })
      }
    }, 1000)
  })

  function handleError (err: Error | string) {
    return player.trigger('customError', { err })
  }
}

videojsUntyped.registerPlugin('peertube', peertubePlugin)