YouTube Helper

YouTube 1.Loop playback of YouTube videos 2.screenshot download 3.themed progress bar.

Versión del día 14/3/2025. Echa un vistazo a la versión más reciente.

Tendrás que instalar una extensión para tu navegador como Tampermonkey, Greasemonkey o Violentmonkey si quieres utilizar este script.

You will need to install an extension such as Tampermonkey to install this script.

Necesitarás instalar una extensión como Tampermonkey o Violentmonkey para instalar este script.

Necesitarás instalar una extensión como Tampermonkey o Userscripts para instalar este script.

Necesitará instalar una extensión como Tampermonkey para instalar este script.

Necesitarás instalar una extensión para administrar scripts de usuario si quieres instalar este script.

(Ya tengo un administrador de scripts de usuario, déjame instalarlo)

Necesitará instalar una extensión como Stylus para instalar este estilo.

Necesitará instalar una extensión como Stylus para instalar este estilo.

Necesitará instalar una extensión como Stylus para instalar este estilo.

Necesitará instalar una extensión del gestor de estilos de usuario para instalar este estilo.

Necesitará instalar una extensión del gestor de estilos de usuario para instalar este estilo.

Necesitará instalar una extensión del gestor de estilos de usuario para instalar este estilo.

(Ya tengo un administrador de estilos de usuario, déjame instalarlo)

// ==UserScript==
// @name         YouTube  Helper
// @name:zh-CN   YouTube 小助手
// @description  YouTube  1.Loop playback of YouTube videos 2.screenshot download 3.themed progress bar.
// @description:zh-CN YouTube 1.视频循环播放 2.截图下载 3.主题进度条
// @author       Carokahn,bernzrdo,FunnyMonkey,人民的勤务员 <[email protected]>
// @namespace    https://github.com/ChinaGodMan/UserScripts
// @supportURL   https://github.com/ChinaGodMan/UserScripts/issues
// @homepageURL  https://github.com/ChinaGodMan/UserScripts
// @license      MIT
// @icon         https://www.youtube.com/s/desktop/ee47b5e0/img/logos/favicon_144x144.png
// @match       https://www.youtube.com/*
// @match       https://m.youtube.com/*
// @compatible   chrome
// @compatible   firefox
// @compatible   edge
// @compatible   opera
// @compatible   safari
// @compatible   kiwi
// @compatible   qq
// @compatible   via
// @compatible   brave
// @version      2025.03.15.0436
// @grant        GM_addStyle
// @created      2025-03-14 20:36:01
// @modified     2025-03-14 20:36:01
// ==/UserScript==
/**
 * File: youtube-helper.user.js
 * Project: UserScripts
 * File Created: 2025/03/15,Saturday 04:36:02
 * Author: 人民的勤务员@ChinaGodMan ([email protected])
 * -----
 * Last Modified: 2025/03/15,Saturday 05:57:23
 * Modified By: 人民的勤务员@ChinaGodMan ([email protected])
 * -----
 * License: MIT License
 * Copyright © 2024 - 2025 ChinaGodMan,Inc
 */
const directDownload = true
const infiniteLool = true





const loopVideo = () => {
    const video = document.querySelector('video')
    if (video && !video.loop) {
        video.loop = true
    }
}
const ThemeProgressbar = () => {
    const css_248z = '.html5-play-progress,.ytp-play-progress{background:url("data:image/png;base64,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") repeat-x!important;background:linear-gradient(180deg,red 0,red 16.5%,#f90 0,#f90 33%,#ff0 0,#ff0 50%,#3f0 0,#3f0 66%,#09f 0,#09f 83.5%,#63f 0,#63f)!important;background:-webkit-linear-gradient(top,red,red 16.5%,#f90 0,#f90 33%,#ff0 0,#ff0 50%,#3f0 0,#3f0 66%,#09f 0,#09f 83.5%,#63f 0,#63f)!important;background:-moz-linear-gradient(top,red 0,red 16.5%,#f90 16.5%,#f90 33%,#ff0 33%,#ff0 50%,#3f0 50%,#3f0 66%,#09f 66%,#09f 83.5%,#63f 83.5%,#63f 100%)!important}.html5-load-progress,.ytp-load-progress{background:url("data:image/gif;base64,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")!important}.html5-scrubber-button,.ytp-scrubber-button{background:url("data:image/gif;base64,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")!important;border:none!important;height:21px!important;margin-left:-18px!important;margin-top:0!important;transform:scale(.8);-webkit-transform:scale(.8);-moz-transform:scale(.8);-ms-transform:scale(.8);width:34px!important}.ytp-progress-bar-container:hover .ytp-load-progress,.ytp-progress-bar-container:hover .ytp-scrubber-button{image-rendering:pixelated}.html5-progress-bar-container,.ytp-progress-bar-container{height:12px!important}.html5-progress-bar,.ytp-progress-bar{margin-top:12px!important}.html5-progress-list,.video-ads .html5-progress-list.html5-ad-progress-list,.video-ads .ytp-progress-list.ytp-ad-progress-list,.ytp-progress-list{height:12px!important}.ytp-volume-slider-track{background:#0c4177!important}'
    GM_addStyle(css_248z)
}

let escapeHTMLPolicy = 'trustedTypes' in window
    ? trustedTypes.createPolicy('forceInner', { createHTML: html => html })
    : { createHTML: html => html }
function screenBtnUpdate() {
    let $miniplayerBtn = document.querySelector('button.ytp-miniplayer-button')
    if ($miniplayerBtn && !document.getElementById('ytp-screenshot-button')) {
        const $btn = document.createElement('button')
        $btn.id = 'ytp-screenshot-button'
        $btn.classList.add('ytp-screenshot-button', 'ytp-button')
        $btn.dataset.priority = '5'
        $btn.dataset.tooltipTargetId = 'ytp-screenshot-button'
        $btn.dataset.titleNoTooltip = 'Screenshot'
        $btn.ariaLabel = 'Screenshot'
        $btn.title = 'Screenshot'
        $btn.innerHTML = escapeHTMLPolicy.createHTML(`<svg height="100%" version="1.1" viewBox="-300 -1260 1560 1560" width="100%">
            <use class="ytp-svg-shadow" xlink:href="#ytp-id-screenshot-svg"></use>
            <path
                d="M200-120q-33 0-56.5-23.5T120-200v-560q0-33 23.5-56.5T200-840h560q33 0 56.5 23.5T840-760v560q0 33-23.5 56.5T760-120H200Zm0-80h560v-560H200v560Zm40-80h480L570-480 450-320l-90-120-120 160Zm-40 80v-560 560Z"
                fill="#fff" id="ytp-id-screenshot-svg"></path>
        </svg>`)
        $btn.addEventListener('click', screenshot)

        insertBefore($btn, $miniplayerBtn)
    }

    requestAnimationFrame(screenBtnUpdate)
}
function insertBefore($element, $sibling) {
    $sibling.parentElement.insertBefore($element, $sibling)
}
function screenshot() {

    const $video = document.querySelector('#player video')
    if (!$video) {
        console.error('No video found to screenshot!')
        return
    }

    let wasPlaying = !$video.paused
    if (wasPlaying) $video.pause()

    const $canvas = document.createElement('canvas')
    $canvas.width = $video.videoWidth
    $canvas.height = $video.videoHeight

    let oldCss = $video.style.cssText
    $video.style.width = $video.videoWidth + 'px'
    $video.style.height = $video.videoHeight + 'px'

    const ctx = $canvas.getContext('2d')
    ctx.drawImage($video, 0, 0, $video.videoWidth, $video.videoHeight)

    $canvas.toBlob(blob => {

        if (directDownload) {
            const a = document.createElement('a')
            a.href = URL.createObjectURL(blob)
            a.download = `${getFileName()}.png`
            a.click()
        } else {
            const item = new ClipboardItem({ 'image/png': blob })
            navigator.clipboard.write([item])
        }

        $video.style.cssText = oldCss
        $canvas.remove()
        if (wasPlaying) $video.play()

    })

}
function getFileName() {
    const safeFileName = document.title.replace(/[\\/:*?"<>|]/g, '').replace(' - YouTube', '')
    return safeFileName
}
if (infiniteLool) {
    const observer = new MutationObserver(loopVideo)
    observer.observe(document.body, { childList: true, subtree: true })
}

requestAnimationFrame(screenBtnUpdate)
ThemeProgressbar()