To add channel name to Shorts thumbnail
/*
MIT License
Copyright 2024 CY Fung
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
// ==UserScript==
// @name YouTube: Add Channel Name to Shorts Thumbnail
// @namespace UserScript
// @match https://www.youtube.com/*
// @grant none
// @version 0.2.4
// @license MIT License
// @author CY Fung
// @description To add channel name to Shorts thumbnail
// @require https://cdn.jsdelivr.net/gh/cyfung1031/userscript-supports@8fac46500c5a916e6ed21149f6c25f8d1c56a6a3/library/ytZara.js
// @run-at document-start
// ==/UserScript==
!window.TTP && (()=>{
// credit to Benjamin Philipp
// original source: https://greasyfork.org/en/scripts/433051-trusted-types-helper
// --------------------------------------------------- Trusted Types Helper ---------------------------------------------------
const overwrite_default = false; // If a default policy already exists, it might be best not to overwrite it, but to try and set a custom policy and use it to manually generate trusted types. Try at your own risk
const prefix = `TTP`;
var passThroughFunc = function(string, sink){
return string; // Anything passing through this function will be returned without change
}
var TTPName = "passthrough";
var TTP_default, TTP = {createHTML: passThroughFunc, createScript: passThroughFunc, createScriptURL: passThroughFunc}; // We can use TTP.createHTML for all our assignments even if we don't need or even have Trusted Types; this should make fallbacks and polyfills easy
var needsTrustedHTML = false;
function doit(){
try{
if(typeof window.isSecureContext !== 'undefined' && window.isSecureContext){
if (window.trustedTypes && window.trustedTypes.createPolicy){
needsTrustedHTML = true;
if(trustedTypes.defaultPolicy){
log("TT Default Policy exists");
if(overwrite_default)
TTP = window.trustedTypes.createPolicy("default", TTP);
else
TTP = window.trustedTypes.createPolicy(TTPName, TTP); // Is the default policy permissive enough? If it already exists, best not to overwrite it
TTP_default = trustedTypes.defaultPolicy;
log("Created custom passthrough policy, in case the default policy is too restrictive: Use Policy '" + TTPName + "' in var 'TTP':", TTP);
}
else{
TTP_default = TTP = window.trustedTypes.createPolicy("default", TTP);
}
log("Trusted-Type Policies: TTP:", TTP, "TTP_default:", TTP_default);
}
}
}catch(e){
log(e);
}
}
function log(...args){
if("undefined" != typeof(prefix) && !!prefix)
args = [prefix + ":", ...args];
if("undefined" != typeof(debugging) && !!debugging)
args = [...args, new Error().stack.replace(/^\s*(Error|Stack trace):?\n/gi, "").replace(/^([^\n]*\n)/, "\n")];
console.log(...args);
}
doit();
// --------------------------------------------------- Trusted Types Helper ---------------------------------------------------
window.TTP = TTP;
})();
function createHTML(s) {
if (typeof TTP !== 'undefined' && typeof TTP.createHTML === 'function') return TTP.createHTML(s);
return s;
}
let trustHTMLErr = null;
try {
document.createElement('div').innerHTML = createHTML('1');
} catch (e) {
trustHTMLErr = e;
}
if (trustHTMLErr) {
console.log(`trustHTMLErr`, trustHTMLErr);
trustHTMLErr(); // exit userscript
}
// -----------------------------------------------------------------------------------------------------------------------------
((__CONTEXT__) => {
const { Promise, fetch } = __CONTEXT__;
class Mutex {
constructor() {
this.p = Promise.resolve()
}
/**
* @param {(lockResolve: () => void)} f
*/
lockWith(f) {
this.p = this.p.then(() => new Promise(f).catch(console.warn))
}
}
const addCSSProcess = () => {
if (document.querySelector('style#ePCWh')) return;
let style = document.createElement('style')
style.id = 'ePCWh'
style.textContent = `
#metadata-line[ePCWh]::before {
width: 100%;
content: attr(ePCWh);
display: block;
max-width: 100%;
text-overflow: ellipsis;
overflow: hidden;
white-space: nowrap;
}
[ePCWu]::before {
width: 100%;
content: attr(ePCWu);
display: block;
max-width: 100%;
text-overflow: ellipsis;
overflow: hidden;
white-space: nowrap;
}
`;
document.head.appendChild(style);
}
const { requestVideoInfoAsync } = (() => {
const mutex = new Mutex();
const resolvedValues = new Map();
const createPromise = (videoId) => {
return new Promise(resolve => {
mutex.lockWith(lockResolve => {
fetch(`/watch?v=${videoId}`, {
"method": "GET",
"mode": "same-origin",
"credentials": "omit",
referrerPolicy: "no-referrer",
cache: "default",
redirect: "error", // there shall be no redirection in this API request
integrity: "",
keepalive: false,
"headers": {
"Cache-Control": "public, max-age=900, stale-while-revalidate=1800",
// refer "Cache-Control Use Case Examples" in https://www.koyeb.com/blog/using-cache-control-and-cdns-to-improve-performance-and-reduce-latency
// seems YouTube RSS Feeds server insists its own Cache-Control.
// "Content-Type": "text/xml; charset=UTF-8",
"Accept-Encoding": "gzip, deflate, br", // YouTube Response - gzip
// X-Youtube-Bootstrap-Logged-In: false,
// X-Youtube-Client-Name: 1, // INNERTUBE_CONTEXT_CLIENT_NAME
// X-Youtube-Client-Version: "2.20230622.06.00" // INNERTUBE_CONTEXT_CLIENT_VERSION
"Accept": "text/html",
"Pragma": ""
}
}).then(res => {
lockResolve();
return res.text();
}).then(resText => {
let wIdx2 = resText.indexOf('itemprop="author"');
let wIdx1 = wIdx2 > 0 ? resText.lastIndexOf('<span', wIdx2) : -1;
let wIdx3 = wIdx1 > 0 ? resText.indexOf('<\/span>', wIdx2) : -1;
if (wIdx3 > 0) {
let mText = resText.substring(wIdx1, wIdx3 + '<\/span>'.length);
let template = document.createElement('template');
template.innerHTML = createHTML(mText);
let span = template.content.firstElementChild;
if (span && span.nodeName === "SPAN") {
let name = span.querySelector('link[itemprop="name"]')
if (name) {
name = name.getAttribute('content');
if (name) {
return name;
}
}
}
template.innerHTML = createHTML('');
}
return '';
}).then(resolve);
})
});
};
const requestVideoInfoAsync = (videoId) => {
let promise = resolvedValues.get(videoId);
if (!promise) {
promise = createPromise(videoId);
resolvedValues.set(videoId, promise);
}
return promise;
}
return { requestVideoInfoAsync };
})();
const firstKey = (obj) => {
for (const key in obj) {
if (obj.hasOwnProperty(key)) return key;
}
return null;
}
const getVideoIdvm2024Oct = (mFirstObj)=>{
let videoId = '';
if(mFirstObj.overlayMetadata && typeof mFirstObj.entityId == 'string' && (mFirstObj.inlinePlayerData||0).onVisible){
const watchEndpoint = ((mFirstObj.inlinePlayerData||0).onVisible.innertubeCommand||0).watchEndpoint || 0;
if(watchEndpoint && typeof (watchEndpoint.videoId||0) === 'string'){
videoId = watchEndpoint.videoId;
}
}
if(!videoId && mFirstObj.overlayMetadata && typeof mFirstObj.entityId == 'string' && (mFirstObj.onTap||0).innertubeCommand){
const reelWatchEndpoint = ((mFirstObj.onTap||0).innertubeCommand||0).reelWatchEndpoint || 0;
if(reelWatchEndpoint && typeof (reelWatchEndpoint.videoId||0) === 'string'){
videoId = reelWatchEndpoint.videoId;
}
}
return videoId;
}
const getSubheadElement = (mainElement) =>{
return HTMLElement.prototype.querySelector.call(mainElement, '.ShortsLockupViewModelHostMetadataSubhead, .ShortsLockupViewModelHostOutsideMetadataSubhead');
}
const __addChannelName583__ = async function () {
const cnt = this;
const hostElement = this.hostElement || this;
const data = cnt.data;
const items = data.items;
if (!items || !items.length) return;
const itemsElm = (this.$ || 0).items || 0;
if (!itemsElm) return;
const results = await Promise.all(items.map(entry => {
const mFirstKey = firstKey(entry);
const mFirstObj = entry[mFirstKey];
const rsVideoId = mFirstObj.rsVideoId;
let videoId = getVideoIdvm2024Oct(mFirstObj);
if (videoId === rsVideoId && videoId) {
return Promise.resolve({
entry,
rsVideoId,
rsChannelName: mFirstObj.rsChannelName
});
}
if (videoId !== rsVideoId && videoId) {
return requestVideoInfoAsync(videoId).then(name => {
return {
entry,
rsVideoId: videoId,
rsChannelName: name
}
});
}
return Promise.resolve({
entry,
rsVideoId: '',
rsChannelName: ''
});
}));
const mapping = new Map();
// console.log(5890, results)
for (const result of results) {
if (!result || !result.rsVideoId) continue;
const entry = (result.entry || 0);
if (!entry) continue;
const mFirstKey = firstKey(entry);
const mFirstObj = entry[mFirstKey];
const entityId = mFirstObj ? mFirstObj.entityId : null;
if (typeof entityId === 'string') {
mapping.set(entityId, result);
}
}
for (const elm of HTMLElement.prototype.querySelectorAll.call(itemsElm, 'ytm-shorts-lockup-view-model')) {
const entityId = ((elm.data || 0).entityId || 0);
let nameToAdd = '';
if (typeof entityId === 'string') {
const result = mapping.get(entityId);
if (result) {
elm.data.rsVideoId = result.rsVideoId;
elm.data.rsChannelName = result.rsChannelName;
nameToAdd = result.rsChannelName;
}
}
const subhead = getSubheadElement(elm);
if (subhead) {
if (nameToAdd) {
subhead.setAttribute('ePCWu', nameToAdd);
} else {
subhead.removeAttribute('ePCWu');
}
}
}
mapping.clear();
console.log(589, results)
}
const __addChannelName582__ = function () {
let useOldModel = true;
const cnt = this;
const hostElement = this.hostElement || this;
let nameToAdd = '';
const data = cnt.data;
const details = data && data.videoType && data.videoId ? ((this.$ || 0).details || 0) : null;
const content = data && data.videoType && data.videoId ? null : ((this.$ || 0).content || 0);
if (data && data.videoType === "REEL_VIDEO_TYPE_VIDEO" && typeof data.videoId === 'string') {
const videoId = data.videoId;
if (data.rsVideoId === videoId && typeof data.rsChannelName === 'string') {
nameToAdd = data.rsChannelName;
let ml = details ? HTMLElement.prototype.querySelector.call(details, '#details #metadata-line') : HTMLElement.prototype.querySelector.call(hostElement, 'ytd-reel-item-renderer #details #metadata-line');
if (ml) {
ml.setAttribute('ePCWh', nameToAdd);
}
} else {
requestVideoInfoAsync(videoId).then(name => {
cnt.data = Object.assign({}, cnt.data, { rsVideoId: videoId, rsChannelName: name });
});
}
} else if (data && data.content && content instanceof Element) {
useOldModel = false;
const mFirstKey = firstKey(data.content);
const mFirstObj = data.content[mFirstKey];
const rsVideoId = mFirstObj.rsVideoId;
let videoId = getVideoIdvm2024Oct(mFirstObj);
if (videoId !== rsVideoId && videoId) {
requestVideoInfoAsync(videoId).then(name => {
const newFirstObject = Object.assign({}, cnt.data.content[mFirstKey], { rsVideoId: videoId, rsChannelName: name });
const newContent = Object.assign({}, cnt.data.content, { [mFirstKey]: newFirstObject });
cnt.data = Object.assign({}, cnt.data, { content: newContent });
});
} else if (rsVideoId === videoId && rsVideoId) {
nameToAdd = mFirstObj.rsChannelName;
const subhead = getSubheadElement(content);
subhead.setAttribute('ePCWu', nameToAdd);
}
}
if (!nameToAdd) {
if (useOldModel) {
const ml = details ? HTMLElement.prototype.querySelector.call(details, '#details #metadata-line') : HTMLElement.prototype.querySelector.call(hostElement, 'ytd-reel-item-renderer #details #metadata-line');
if (ml) {
ml.removeAttribute('ePCWh');
}
} else if (content) {
const subhead = HTMLElement.prototype.querySelector.call(content, '[ePCWu]');
if (subhead) {
subhead.removeAttribute('ePCWu');
}
}
}
};
ytZara.ytProtoAsync("ytd-rich-grid-slim-media").then((cProto) => {
Promise.resolve().then(addCSSProcess);
console.log(4717);
cProto.__addChannelName582__ = __addChannelName582__;
const onDataChanged = cProto.onDataChanged;
cProto.onDataChanged = function () {
const cnt = this;
console.log(4719, 1);
Promise.resolve().then(()=>{
this.__addChannelName582__();
}).catch(console.warn);
return onDataChanged ? onDataChanged.apply(cnt, arguments) : void 0;
};
});
const onVisiblePn = (cProto) => {
Promise.resolve().then(addCSSProcess);
console.log(4718);
cProto.__addChannelName582__ = __addChannelName582__;
const onVisible = cProto.onVisible;
cProto.onVisible = function () {
const cnt = this;
console.log(4719, 2);
Promise.resolve().then(()=>{
this.__addChannelName582__();
}).catch(console.warn);
return onVisible ? onVisible.apply(cnt, arguments) : void 0;
};
};
ytZara.ytProtoAsync("ytd-reel-item-renderer").then(onVisiblePn);
ytZara.ytProtoAsync("ytd-rich-item-renderer").then(onVisiblePn);
ytZara.ytProtoAsync("yt-horizontal-list-renderer").then((cProto) => {
Promise.resolve().then(addCSSProcess);
console.log(4721);
cProto.__addChannelName583__ = __addChannelName583__;
const onVisible = cProto.onVisible;
cProto.onVisible = function () {
const cnt = this;
console.log(4719, 3);
Promise.resolve().then(()=>{
this.__addChannelName583__();
}).catch(console.warn);
return onVisible ? onVisible.apply(cnt, arguments) : void 0;
};
})
})({ Promise, fetch });