Aggiunge un pulsante per scattare uno screenshot del fotogramma video corrente su YouTube.
// ==UserScript==
// @name YouTube Screenshot Button
// @namespace https://criskkky.carrd.co/
// @version 1.0.3
// @description Adds a button to take a screenshot of the current video frame on YouTube.
// @description:es Añade un botón para tomar una captura de pantalla del fotograma actual del vídeo en YouTube.
// @description:pt Adiciona um botão para tirar uma captura de tela do fotograma atual do vídeo no YouTube.
// @description:fr Ajoute un bouton pour prendre une capture d'écran de l'image vidéo actuelle sur YouTube.
// @description:it Aggiunge un pulsante per scattare uno screenshot del fotogramma video corrente su YouTube.
// @description:uk Додає кнопку для знімка поточного кадру відео на YouTube.
// @description:ru Добавляет кнопку для снятия скриншота текущего кадра видео на YouTube.
// @description:ro Adaugă un buton pentru a face un screenshot al cadrului video curent de pe YouTube.
// @author https://criskkky.carrd.co/
// @supportURL https://github.com/criskkky/YT-SS-Button/issues
// @icon https://raw.githubusercontent.com/criskkky/YT-SS-Button/main/static/icon.svg
// @copyright https://github.com/criskkky/
// @grant none
// @match *://*.youtube.com/*
// ==/UserScript==
// v1.0.3: update selectors for YouTube's latest player UI
// (".ytp-right-controls" now splits into ".ytp-right-controls-right" in some layouts).
(() => {
const BUTTON_SELECTOR = '.ytp-screenshot-button';
let ensureTimer = null;
function isWatchPage() {
return window.location.href.includes('watch?v=');
}
function getControlsContainer() {
// YouTube recently introduced a "right-controls-left/right" split.
// Prefer inserting into the actual right-side container when present.
const player = document.querySelector('#movie_player');
const root = player || document;
return (
root.querySelector('.ytp-right-controls-right') ||
root.querySelector('.ytp-right-controls') ||
document.querySelector('.ytp-right-controls-right') ||
document.querySelector('.ytp-right-controls')
);
}
function createButton() {
const screenshotButton = document.createElement('button');
screenshotButton.className = 'ytp-button ytp-screenshot-button';
screenshotButton.setAttribute('title', 'Take screenshot');
screenshotButton.setAttribute('aria-label', 'Take screenshot');
const svgElement = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
svgElement.setAttribute('viewBox', '0 0 487 487');
svgElement.setAttribute('width', '24');
svgElement.setAttribute('height', '24');
svgElement.setAttribute('fill', '#ffffff');
const pathElement = document.createElementNS('http://www.w3.org/2000/svg', 'path');
pathElement.setAttribute(
'd',
'M308.1,277.95c0,35.7-28.9,64.6-64.6,64.6s-64.6-28.9-64.6-64.6s28.9-64.6,64.6-64.6S308.1,242.25,308.1,277.95z M440.3,116.05c25.8,0,46.7,20.9,46.7,46.7v122.4v103.8c0,27.5-22.3,49.8-49.8,49.8H49.8c-27.5,0-49.8-22.3-49.8-49.8v-103.9 v-122.3l0,0c0-25.8,20.9-46.7,46.7-46.7h93.4l4.4-18.6c6.7-28.8,32.4-49.2,62-49.2h74.1c29.6,0,55.3,20.4,62,49.2l4.3,18.6H440.3z M97.4,183.45c0-12.9-10.5-23.4-23.4-23.4c-13,0-23.5,10.5-23.5,23.4s10.5,23.4,23.4,23.4C86.9,206.95,97.4,196.45,97.4,183.45z M358.7,277.95c0-63.6-51.6-115.2-115.2-115.2s-115.2,51.6-115.2,115.2s51.6,115.2,115.2,115.2S358.7,341.55,358.7,277.95z'
);
svgElement.appendChild(pathElement);
screenshotButton.appendChild(svgElement);
screenshotButton.addEventListener('click', () => {
const video =
document.querySelector('#movie_player video.html5-main-video') ||
document.querySelector('video');
if (video) captureFrame(video);
});
return screenshotButton;
}
function addScreenshotButton() {
const controls = getControlsContainer();
if (!controls) return false;
if (document.querySelector(BUTTON_SELECTOR)) {
return true;
}
const screenshotButton = createButton();
controls.insertBefore(screenshotButton, controls.firstChild);
return true;
}
function captureFrame(video) {
const canvas = document.createElement('canvas');
canvas.width = video.videoWidth;
canvas.height = video.videoHeight;
const ctx = canvas.getContext('2d');
ctx.drawImage(video, 0, 0, canvas.width, canvas.height);
const videoTitle = document.title.replace(/\s-\sYouTube$/, '').trim();
const filename = `${videoTitle}.png`;
const link = document.createElement('a');
link.href = canvas.toDataURL('image/png');
link.download = filename;
link.click();
}
function ensureButtonEventually() {
if (ensureTimer) {
clearTimeout(ensureTimer);
ensureTimer = null;
}
if (!isWatchPage()) return;
let attempts = 0;
const maxAttempts = 40; // ~20s at 500ms
const tick = () => {
if (!isWatchPage()) return;
const ok = addScreenshotButton();
if (ok) return;
attempts += 1;
if (attempts >= maxAttempts) return;
ensureTimer = setTimeout(tick, 500);
};
tick();
}
function initialize() {
document.addEventListener('yt-navigate-finish', ensureButtonEventually);
// Initial setup
ensureButtonEventually();
}
initialize();
})();