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Netflix长按倍速脚本

Netflix长按右箭头倍速播放

  1. // ==UserScript==
  2. // @license     AGPL License
  3. // @name        Netflix长按倍速脚本
  4. // @name:en     Netflix long press to speed up
  5. // @namespace   Violentmonkey Scripts
  6. // @match       https://www.netflix.com/*
  7. // @run-at      document-start
  8. // @grant       none
  9. // @version     1.0
  10. // @author      n1nja88888
  11. // @description Netflix长按右箭头倍速播放
  12. // @description:en Netflix long press Arrow Right to speed up
  13. // ==/UserScript==
  14. 'use strict'
  15. const speed = 2
  16. const forward = 5
  17. console.log('n1nja88888 creates this world!')
  18.  
  19. !function () {
  20.     //改变keydown事件监听器函数 忽略指定key
  21.     function keydownOmit(listener, omits) {
  22.         return (...args) => {
  23.             if (!omits.has(args[0].key))
  24.                 listener(...args)
  25.         }
  26.     }
  27.     // netflix 是keydown下的div#appaMountpoint控制
  28.     Element.prototype._addEventListener = Element.prototype.addEventListener
  29.     Element.prototype.addEventListener = function (type, listener, useCapture = false) {
  30.         if (type === 'keydown')
  31.             listener = keydownOmit(listener, new Set(['ArrowLeft', 'ArrowRight']))
  32.         this._addEventListener(type, listener, useCapture)
  33.     }
  34. }()
  35.  
  36. main()
  37.  
  38. function main() {
  39.     // 倍速定时器
  40.     let timer = null
  41.     //初始速度，松开按键后是恢复到初始速度
  42.     let initSpeed = -1
  43.     // 获取nefliex内嵌的player
  44.     let videoPlayer = null
  45.     let player = null
  46.     // 判断是否加速
  47.     let isSpeeding = false
  48.     // 复写keydown的事件监听器
  49.     document.addEventListener('keydown', (e) => {
  50.         if (isCombKey(e) || isActive('input', 'textarea') || !netflix)
  51.             return
  52.         videoPlayer = netflix.appContext.state.playerApp.getAPI().videoPlayer
  53.         const sessions = videoPlayer.getAllPlayerSessionIds()
  54.         player = videoPlayer.getVideoPlayerBySessionId(sessions[sessions.length - 1])
  55.         if (!player)
  56.             return
  57.         switch (e.key) {
  58.             case 'ArrowLeft':
  59.                 player.seek(player.getCurrentTime() - forward * 1e3)
  60.                 break
  61.             case 'ArrowRight':
  62.                 if (!timer) {
  63.                     timer = setTimeout(() => {
  64.                         isSpeeding = true
  65.                         player.play()
  66.                         initSpeed = player.getPlaybackRate()
  67.                         player.setPlaybackRate(speed)
  68.                     }, 0.15e3)
  69.                 }
  70.                 break
  71.         }
  72.     })
  73.  
  74.     document.addEventListener('keyup', (e) => {
  75.         if (e.key === 'ArrowRight') {
  76.             clearTimeout(timer)
  77.             timer = null
  78.             if (isSpeeding) {
  79.                 isSpeeding = false
  80.                 player.setPlaybackRate(initSpeed)
  81.             }
  82.             else
  83.                 player.seek(player.getCurrentTime() + forward * 1e3)
  84.         }
  85.     })
  86. }
  87.  
  88. // 判断是否是组合键
  89. function isCombKey(e) {
  90.     return e.ctrlKey || e.shiftkey || e.altKey || e.metaKey
  91. }
  92. // 判断当前页面活动元素
  93. function isActive(...eleSet) {
  94.     for (const ele of eleSet) {
  95.         if (ele instanceof HTMLElement) {
  96.             if (document.activeElement === ele)
  97.                 return true
  98.         }
  99.         else {
  100.             switch (ele.charAt(0)) {
  101.                 case '.':
  102.                     if (document.activeElement.classList.contains(ele.substring(1)))
  103.                         return true
  104.                     break
  105.                 case '#':
  106.                     if (document.activeElement.id.toLowerCase() === ele.substring(1).toLowerCase())
  107.                         return true
  108.                     break
  109.                 default:
  110.                     if (document.activeElement.tagName.toLowerCase() === ele.toLowerCase())
  111.                         return true
  112.             }
  113.         }
  114.     }
  115.     return false
  116. }
  117.  

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