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按住方向键右键倍速播放，松开右键恢复原样（参考：【视频网HTML5播放小工具】https://bbs.kafan.cn/thread-2093014-1-1.html）
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// ==UserScript==
// @name 黄金右键-按住右键倍速播放,松开右键恢复原样(支持b站、YouTube、优酷...)
// @description 按住方向键右键倍速播放，松开右键恢复原样（参考：【视频网HTML5播放小工具】https://bbs.kafan.cn/thread-2093014-1-1.html）
// @namespace http://tampermonkey.net/
// @version 0.1
// @author SkyJin
// @include https://www.bilibili.com/*
// @include https://www.youtube.com/watch?v=*
// @include https://v.youku.com/v_show/id_*
// @include https://www.iqiyi.com/*
// @grant none
// ==/UserScript==
(async function() {
'use strict';
let is_down = false
const tryPageVideo = () => Array.prototype.find.call(document.getElementsByTagName('video'), e => e.offsetWidth > 9)
const getPageVideo = () => {
return new Promise(resolve => {
const timer = setInterval(() => {
const page_video = tryPageVideo()
if (page_video) {
clearInterval(timer)
resolve(page_video)
}
}, 300);
})
};
const page_video = await getPageVideo()
console.log('获得page_video', page_video)
const rate = 3
const downEvent = e => {
if (e.keyCode !== 39) return
e.stopPropagation()
if (is_down === true && page_video.playbackRate !== rate) {
page_video.playbackRate = rate
console.log('加速播放中', page_video)
}
is_down = true
}
const upEvent = e => {
if (e.keyCode !== 39) return
e.stopPropagation()
is_down = false
page_video.playbackRate = 1
}
document.body.addEventListener('keydown', downEvent, true)
document.body.parentElement.addEventListener('keyup', upEvent, true)
})();