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// ==UserScript==
// @name YouTube Enhancer (Loop & Screenshot Button)
// @description Integrating loop and screenshot buttons into the video and shorts player to enhance user functionality.
// @icon https://raw.githubusercontent.com/exyezed/youtube-enhancer/refs/heads/main/extras/youtube-enhancer.png
// @version 1.1
// @author exyezed
// @namespace https://github.com/exyezed/youtube-enhancer/
// @supportURL https://github.com/exyezed/youtube-enhancer/issues
// @license MIT
// @match https://www.youtube.com/*
// @grant GM_xmlhttpRequest
// ==/UserScript==
(function() {
'use strict';
// Configuration
const YouTubeEnhancerLoopScreenshotConfig = {
screenshotFormat: "png",
extension: 'png',
screenshotFunctionality: 2 // 0: download, 1: clipboard, 2: both
};
// CSS Styles
const YouTubeEnhancerLoopScreenshotCSS = `
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200');
a.YouTubeEnhancerLoopScreenshot-loop-button, a.YouTubeEnhancerLoopScreenshot-screenshot-button {
text-align: center;
}
a.YouTubeEnhancerLoopScreenshot-loop-button svg, a.YouTubeEnhancerLoopScreenshot-screenshot-button svg {
margin-bottom: 2px;
width: 52%;
vertical-align: middle;
}
a.YouTubeEnhancerLoopScreenshot-loop-button.active svg {
fill: url(#buttonGradient);
}
a.YouTubeEnhancerLoopScreenshot-screenshot-button.clicked svg {
fill: url(#buttonGradient);
}
.YouTubeEnhancerLoopScreenshot-shorts-screenshot-button {
display: flex;
align-items: center;
justify-content: center;
margin-top: 16px;
width: 48px;
height: 48px;
border-radius: 50%;
cursor: pointer;
transition: background-color 0.3s;
}
.YouTubeEnhancerLoopScreenshot-shorts-screenshot-button .material-symbols-outlined {
font-size: 24px;
font-variation-settings: 'FILL' 1;
}
/* Theme-specific styles */
html[dark] .YouTubeEnhancerLoopScreenshot-shorts-screenshot-button {
background-color: rgba(255, 255, 255, 0.1);
}
html[dark] .YouTubeEnhancerLoopScreenshot-shorts-screenshot-button:hover {
background-color: rgba(255, 255, 255, 0.2);
}
html[dark] .YouTubeEnhancerLoopScreenshot-shorts-screenshot-button .material-symbols-outlined {
color: white;
}
html:not([dark]) .YouTubeEnhancerLoopScreenshot-shorts-screenshot-button {
background-color: rgba(0, 0, 0, 0.05);
}
html:not([dark]) .YouTubeEnhancerLoopScreenshot-shorts-screenshot-button:hover {
background-color: rgba(0, 0, 0, 0.1);
}
html:not([dark]) .YouTubeEnhancerLoopScreenshot-shorts-screenshot-button .material-symbols-outlined {
color: #030303;
}
`;
// Utility Functions
const YouTubeEnhancerLoopScreenshotUtils = {
addStyle(styleString) {
const style = document.createElement('style');
style.textContent = styleString;
document.head.append(style);
},
getYouTubeVideoLoopSVG() {
const svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
svg.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
svg.setAttribute('height', '24px');
svg.setAttribute('viewBox', '0 -960 960 960');
svg.setAttribute('width', '24px');
svg.setAttribute('fill', '#e8eaed');
// Add gradient definition
const defs = document.createElementNS('http://www.w3.org/2000/svg', 'defs');
const gradient = document.createElementNS('http://www.w3.org/2000/svg', 'linearGradient');
gradient.setAttribute('id', 'buttonGradient');
gradient.setAttribute('x1', '0%');
gradient.setAttribute('y1', '0%');
gradient.setAttribute('x2', '100%');
gradient.setAttribute('y2', '100%');
const stop1 = document.createElementNS('http://www.w3.org/2000/svg', 'stop');
stop1.setAttribute('offset', '0%');
stop1.setAttribute('style', 'stop-color:#f03');
const stop2 = document.createElementNS('http://www.w3.org/2000/svg', 'stop');
stop2.setAttribute('offset', '100%');
stop2.setAttribute('style', 'stop-color:#ff2791');
gradient.appendChild(stop1);
gradient.appendChild(stop2);
defs.appendChild(gradient);
svg.appendChild(defs);
const path = document.createElementNS('http://www.w3.org/2000/svg', 'path');
path.setAttribute('d', 'M220-260q-92 0-156-64T0-480q0-92 64-156t156-64q37 0 71 13t61 37l68 62-60 54-62-56q-16-14-36-22t-42-8q-58 0-99 41t-41 99q0 58 41 99t99 41q22 0 42-8t36-22l310-280q27-24 61-37t71-13q92 0 156 64t64 156q0 92-64 156t-156 64q-37 0-71-13t-61-37l-68-62 60-54 62 56q16 14 36 22t42 8q58 0 99-41t41-99q0-58-41-99t-99-41q-22 0-42 8t-36 22L352-310q-27 24-61 37t-71 13Z');
svg.appendChild(path);
return svg;
},
getYouTubeVideoScreenshotSVG() {
const svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
svg.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
svg.setAttribute('height', '24px');
svg.setAttribute('viewBox', '0 -960 960 960');
svg.setAttribute('width', '24px');
svg.setAttribute('fill', '#e8eaed');
// Add gradient definition
const defs = document.createElementNS('http://www.w3.org/2000/svg', 'defs');
const gradient = document.createElementNS('http://www.w3.org/2000/svg', 'linearGradient');
gradient.setAttribute('id', 'buttonGradient');
gradient.setAttribute('x1', '0%');
gradient.setAttribute('y1', '0%');
gradient.setAttribute('x2', '100%');
gradient.setAttribute('y2', '100%');
const stop1 = document.createElementNS('http://www.w3.org/2000/svg', 'stop');
stop1.setAttribute('offset', '0%');
stop1.setAttribute('style', 'stop-color:#f03');
const stop2 = document.createElementNS('http://www.w3.org/2000/svg', 'stop');
stop2.setAttribute('offset', '100%');
stop2.setAttribute('style', 'stop-color:#ff2791');
gradient.appendChild(stop1);
gradient.appendChild(stop2);
defs.appendChild(gradient);
svg.appendChild(defs);
const path = document.createElementNS('http://www.w3.org/2000/svg', 'path');
path.setAttribute('d', 'M240-280h480L570-480 450-320l-90-120-120 160Zm-80 160q-33 0-56.5-23.5T80-200v-480q0-33 23.5-56.5T160-760h126l74-80h240l74 80h126q33 0 56.5 23.5T880-680v480q0 33-23.5 56.5T800-120H160Zm0-80h640v-480H638l-73-80H395l-73 80H160v480Zm320-240Z');
svg.appendChild(path);
return svg;
},
getVideoId() {
const urlParams = new URLSearchParams(window.location.search);
return urlParams.get('v') || window.location.pathname.split('/').pop();
},
getVideoTitle(callback) {
const videoId = this.getVideoId();
GM_xmlhttpRequest({
method: "GET",
url: `https://exyezed.vercel.app/api/video/${videoId}`,
onload: function(response) {
if (response.status === 200) {
const data = JSON.parse(response.responseText);
callback(data.title);
} else {
callback('YouTube Video');
}
},
onerror: function() {
callback('YouTube Video');
}
});
},
formatTime(time) {
const date = new Date();
const dateString = `${date.getFullYear()}-${String(date.getMonth() + 1).padStart(2, '0')}-${String(date.getDate()).padStart(2, '0')}`;
const timeString = [
Math.floor(time / 3600),
Math.floor((time % 3600) / 60),
Math.floor(time % 60)
].map(v => v.toString().padStart(2, '0')).join('-');
return `${dateString} ${timeString}`;
},
async copyToClipboard(blob) {
const clipboardItem = new ClipboardItem({ "image/png": blob });
await navigator.clipboard.write([clipboardItem]);
},
downloadScreenshot(blob, filename) {
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.style.display = 'none';
a.href = url;
a.download = filename;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
}
};
// Regular YouTube Video Functions
const YouTubeEnhancerLoopScreenshotRegularVideo = {
init() {
this.insertLoopElement();
this.insertScreenshotElement();
this.addObserver();
this.addContextMenuListener();
},
insertLoopElement() {
const newButton = document.createElement('a');
newButton.classList.add('ytp-button', 'YouTubeEnhancerLoopScreenshot-loop-button');
newButton.title = 'Loop Video';
newButton.appendChild(YouTubeEnhancerLoopScreenshotUtils.getYouTubeVideoLoopSVG());
newButton.addEventListener('click', this.toggleLoopState);
document.querySelector('div.ytp-left-controls').appendChild(newButton);
},
insertScreenshotElement() {
const newButton = document.createElement('a');
newButton.classList.add('ytp-button', 'YouTubeEnhancerLoopScreenshot-screenshot-button');
newButton.title = 'Take Screenshot';
newButton.appendChild(YouTubeEnhancerLoopScreenshotUtils.getYouTubeVideoScreenshotSVG());
newButton.addEventListener('click', this.handleScreenshotClick);
const loopButton = document.querySelector('.YouTubeEnhancerLoopScreenshot-loop-button');
loopButton.parentNode.insertBefore(newButton, loopButton.nextSibling);
},
toggleLoopState() {
const video = document.querySelector('video');
video.loop = !video.loop;
if (video.loop) video.play();
YouTubeEnhancerLoopScreenshotRegularVideo.updateToggleControls();
},
updateToggleControls() {
const youtubeVideoLoop = document.querySelector('.YouTubeEnhancerLoopScreenshot-loop-button');
youtubeVideoLoop.classList.toggle('active');
youtubeVideoLoop.setAttribute('title', this.isActive() ? 'Stop Looping' : 'Loop Video');
},
isActive() {
const youtubeVideoLoop = document.querySelector('.YouTubeEnhancerLoopScreenshot-loop-button');
return youtubeVideoLoop.classList.contains('active');
},
addObserver() {
const video = document.querySelector('video');
new MutationObserver((mutations) => {
mutations.forEach(() => {
if ((video.getAttribute('loop') === null && this.isActive()) ||
(video.getAttribute('loop') !== null && !this.isActive())) this.updateToggleControls();
});
}).observe(video, { attributes: true, attributeFilter: ['loop'] });
},
addContextMenuListener() {
const video = document.querySelector('video');
video.addEventListener('contextmenu', () => {
setTimeout(() => {
const checkbox = document.querySelector('[role=menuitemcheckbox]');
checkbox.setAttribute('aria-checked', this.isActive());
checkbox.addEventListener('click', this.toggleLoopState);
}, 50);
});
},
handleScreenshotClick(event) {
const button = event.currentTarget;
button.classList.add('clicked');
setTimeout(() => {
button.classList.remove('clicked');
}, 100);
YouTubeEnhancerLoopScreenshotRegularVideo.captureScreenshot();
},
captureScreenshot() {
const player = document.querySelector('video');
if (!player) return;
const canvas = document.createElement("canvas");
canvas.width = player.videoWidth;
canvas.height = player.videoHeight;
canvas.getContext('2d').drawImage(player, 0, 0, canvas.width, canvas.height);
YouTubeEnhancerLoopScreenshotUtils.getVideoTitle((title) => {
const time = player.currentTime;
const filename = `${title} ${YouTubeEnhancerLoopScreenshotUtils.formatTime(time)}.${YouTubeEnhancerLoopScreenshotConfig.extension}`;
canvas.toBlob(async (blob) => {
if (YouTubeEnhancerLoopScreenshotConfig.screenshotFunctionality === 1 || YouTubeEnhancerLoopScreenshotConfig.screenshotFunctionality === 2) {
await YouTubeEnhancerLoopScreenshotUtils.copyToClipboard(blob);
}
if (YouTubeEnhancerLoopScreenshotConfig.screenshotFunctionality === 0 || YouTubeEnhancerLoopScreenshotConfig.screenshotFunctionality === 2) {
YouTubeEnhancerLoopScreenshotUtils.downloadScreenshot(blob, filename);
}
}, `image/${YouTubeEnhancerLoopScreenshotConfig.screenshotFormat}`);
});
}
};
// YouTube Shorts Functions
const YouTubeEnhancerLoopScreenshotShorts = {
init() {
this.insertScreenshotElement();
},
insertScreenshotElement() {
const shortsContainer = document.querySelector('ytd-reel-video-renderer[is-active] #actions');
if (shortsContainer && !shortsContainer.querySelector('.YouTubeEnhancerLoopScreenshot-shorts-screenshot-button')) {
const iconDiv = document.createElement('div');
iconDiv.className = 'YouTubeEnhancerLoopScreenshot-shorts-screenshot-button';
const iconSpan = document.createElement('span');
iconSpan.className = 'material-symbols-outlined';
iconSpan.textContent =
'photo_camera_back';
iconDiv.appendChild(iconSpan);
const customShortsIcon = shortsContainer.querySelector('#custom-shorts-icon');
if (customShortsIcon) {
customShortsIcon.parentNode.insertBefore(iconDiv, customShortsIcon);
} else {
shortsContainer.insertBefore(iconDiv, shortsContainer.firstChild);
}
iconDiv.addEventListener('click', () => this.captureScreenshot());
}
},
captureScreenshot() {
const player = document.querySelector('ytd-reel-video-renderer[is-active] video');
if (!player) return;
const canvas = document.createElement("canvas");
canvas.width = player.videoWidth;
canvas.height = player.videoHeight;
canvas.getContext('2d').drawImage(player, 0, 0, canvas.width, canvas.height);
YouTubeEnhancerLoopScreenshotUtils.getVideoTitle((title) => {
const time = player.currentTime;
const filename = `${title} ${YouTubeEnhancerLoopScreenshotUtils.formatTime(time)}.${YouTubeEnhancerLoopScreenshotConfig.extension}`;
canvas.toBlob(async (blob) => {
if (YouTubeEnhancerLoopScreenshotConfig.screenshotFunctionality === 1 || YouTubeEnhancerLoopScreenshotConfig.screenshotFunctionality === 2) {
await YouTubeEnhancerLoopScreenshotUtils.copyToClipboard(blob);
}
if (YouTubeEnhancerLoopScreenshotConfig.screenshotFunctionality === 0 || YouTubeEnhancerLoopScreenshotConfig.screenshotFunctionality === 2) {
YouTubeEnhancerLoopScreenshotUtils.downloadScreenshot(blob, filename);
}
}, `image/${YouTubeEnhancerLoopScreenshotConfig.screenshotFormat}`);
});
}
};
// Theme Functions
const YouTubeEnhancerLoopScreenshotTheme = {
init() {
this.updateStyles();
this.addObserver();
},
updateStyles() {
const isDarkTheme = document.documentElement.hasAttribute('dark');
document.documentElement.classList.toggle('dark-theme', isDarkTheme);
},
addObserver() {
const observer = new MutationObserver(this.updateStyles);
observer.observe(document.documentElement, {
attributes: true,
attributeFilter: ['dark']
});
}
};
// Main Initialization
function YouTubeEnhancerLoopScreenshotInit() {
YouTubeEnhancerLoopScreenshotUtils.addStyle(YouTubeEnhancerLoopScreenshotCSS);
setTimeout(YouTubeEnhancerLoopScreenshotVideoElementPresent() ? YouTubeEnhancerLoopScreenshotInitializeFeatures : YouTubeEnhancerLoopScreenshotInit, 500);
}
function YouTubeEnhancerLoopScreenshotVideoElementPresent() {
return document.querySelector('video') !== null;
}
function YouTubeEnhancerLoopScreenshotInitializeFeatures() {
YouTubeEnhancerLoopScreenshotRegularVideo.init();
YouTubeEnhancerLoopScreenshotTheme.init();
YouTubeEnhancerLoopScreenshotInitializeShortsFeatures();
}
function YouTubeEnhancerLoopScreenshotInitializeShortsFeatures() {
if (window.location.pathname.includes('/shorts/')) {
setTimeout(YouTubeEnhancerLoopScreenshotShorts.init.bind(YouTubeEnhancerLoopScreenshotShorts), 500);
}
}
// Observers and Event Listeners
const YouTubeEnhancerLoopScreenshotShortsObserver = new MutationObserver((mutations) => {
for (let mutation of mutations) {
if (mutation.type === 'childList') {
YouTubeEnhancerLoopScreenshotInitializeShortsFeatures();
}
}
});
YouTubeEnhancerLoopScreenshotShortsObserver.observe(document.body, { childList: true, subtree: true });
window.addEventListener('yt-navigate-finish', YouTubeEnhancerLoopScreenshotInitializeShortsFeatures);
document.addEventListener('yt-action', function(event) {
if (event.detail && event.detail.actionName === 'yt-reload-continuation-items-command') {
YouTubeEnhancerLoopScreenshotInitializeShortsFeatures();
}
});
// Initialize
YouTubeEnhancerLoopScreenshotInit();
console.log('YouTubeEnhancerLoopScreenshot: Enjoy the awesome music and capture your favorite moments!');
})();