netflix-rewind-advance.js

// ==UserScript==
// @name         netflix rewind advance
// @namespace    http://tampermonkey.net/
// @version      2024-11-28
// @description  netflix で z,x キーで巻き戻し、早送りする
// @author       hush_in
// @match        https://www.netflix.com/watch/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=netflix.com
// @grant        none
// ==/UserScript==

;(function () {
  'use strict'

  window.addEventListener(
    'keydown',
    function (event) {
      const seek = (diff) => {
        const videoPlayer =
          window.netflix.appContext.state.playerApp.getAPI().videoPlayer
        const player = videoPlayer.getVideoPlayerBySessionId(
          videoPlayer.getAllPlayerSessionIds()[0],
        )
        player.seek(player.getCurrentTime() + diff)
        event.stopImmediatePropagation()
        event.preventDefault()
      }
      if (event.key === 'z') {
        seek(-10000)
      }
      if (event.key === 'x') {
        seek(10000)
      }
    },
    true,
  )
})()