YouTube直播聊天的终极性能提升
目前为
// ==UserScript==
// @name YouTube Super Fast Chat
// @version 0.11.1
// @license MIT
// @name:ja YouTube スーパーファーストチャット
// @name:zh-TW YouTube 超快聊天
// @name:zh-CN YouTube 超快聊天
// @icon https://github.com/cyfung1031/userscript-supports/raw/main/icons/super-fast-chat.png
// @namespace UserScript
// @match https://www.youtube.com/live_chat*
// @author CY Fung
// @require https://gf.qytechs.cn/scripts/465819-api-for-customelements-in-youtube/code/API%20for%20CustomElements%20in%20YouTube.js?version=1215280
// @run-at document-start
// @grant none
// @unwrap
// @allFrames true
// @inject-into page
//
// @description Ultimate Performance Boost for YouTube Live Chats
// @description:ja YouTubeのライブチャットの究極のパフォーマンスブースト
// @description:zh-TW YouTube直播聊天的終極性能提升
// @description:zh-CN YouTube直播聊天的终极性能提升
//
// ==/UserScript==
((__CONTEXT__) => {
'use strict';
const ENABLE_REDUCED_MAXITEMS_FOR_FLUSH = true;
const MAX_ITEMS_FOR_TOTAL_DISPLAY = 90;
const MAX_ITEMS_FOR_FULL_FLUSH = 25;
const ENABLE_NO_SMOOTH_TRANSFORM = true;
const USE_OPTIMIZED_ON_SCROLL_ITEMS = true;
const USE_WILL_CHANGE_CONTROLLER = false;
const ENABLE_FULL_RENDER_REQUIRED_PREFERRED = true;
const ENABLE_OVERFLOW_ANCHOR_PREFERRED = true;
const FIX_SHOW_MORE_BUTTON_LOCATION = true;
const FIX_INPUT_PANEL_OVERFLOW_ISSUE = true;
const FIX_INPUT_PANEL_BORDER_ISSUE = true;
const SET_CONTAIN_FOR_CHATROOM = true;
const FORCE_CONTENT_VISIBILITY_UNSET = true;
const FORCE_WILL_CHANGE_UNSET = true;
const ENABLE_RAF_HACK_TICKERS = true; // when there is a ticker
const ENABLE_RAF_HACK_DOCKED_MESSAGE = true; // TBC
const ENABLE_RAF_HACK_INPUT_RENDERER = true; // TBC
const ENABLE_RAF_HACK_EMOJI_PICKER = true; // when change the page of emoji picker
function dr(s) {
// reserved for future use
return s;
// return window.deWeakJS ? window.deWeakJS(s) : s;
}
// necessity of cssText3_smooth_transform_position to be checked.
const cssText3_smooth_transform_position = ENABLE_NO_SMOOTH_TRANSFORM ? `
#item-offset.style-scope.yt-live-chat-item-list-renderer > #items.style-scope.yt-live-chat-item-list-renderer {
position: static !important;
}
`: '';
// fallback if dummy style fn fails
const cssText4_smooth_transform_forced_props = ENABLE_NO_SMOOTH_TRANSFORM ? `
/* optional */
#item-offset.style-scope.yt-live-chat-item-list-renderer {
height: auto !important;
min-height: unset !important;
}
#items.style-scope.yt-live-chat-item-list-renderer {
transform: translateY(0px) !important;
}
/* optional */
`: '';
const cssText5 = SET_CONTAIN_FOR_CHATROOM ? `
/* ------------------------------------------------------------------------------------------------------------- */
yt-live-chat-author-chip #chat-badges.yt-live-chat-author-chip, yt-live-chat-author-chip #chat-badges.yt-live-chat-author-chip yt-live-chat-author-badge-renderer, yt-live-chat-author-chip #chat-badges.yt-live-chat-author-chip yt-live-chat-author-badge-renderer #image, yt-live-chat-author-chip #chat-badges.yt-live-chat-author-chip yt-live-chat-author-badge-renderer #image img {
contain: layout style;
}
#items.style-scope.yt-live-chat-item-list-renderer {
contain: layout paint style;
}
#item-offset.style-scope.yt-live-chat-item-list-renderer {
contain: style;
}
#item-scroller.style-scope.yt-live-chat-item-list-renderer {
contain: size style;
}
#contents.style-scope.yt-live-chat-item-list-renderer, #chat.style-scope.yt-live-chat-renderer, img.style-scope.yt-img-shadow[width][height] {
contain: size layout paint style;
}
.style-scope.yt-live-chat-ticker-renderer[role="button"][aria-label], .style-scope.yt-live-chat-ticker-renderer[role="button"][aria-label] > #container {
contain: layout paint style;
}
yt-live-chat-text-message-renderer.style-scope.yt-live-chat-item-list-renderer, yt-live-chat-membership-item-renderer.style-scope.yt-live-chat-item-list-renderer, yt-live-chat-paid-message-renderer.style-scope.yt-live-chat-item-list-renderer, yt-live-chat-banner-manager.style-scope.yt-live-chat-item-list-renderer {
contain: layout style;
}
tp-yt-paper-tooltip[style*="inset"][role="tooltip"] {
contain: layout paint style;
}
/* ------------------------------------------------------------------------------------------------------------- */
` : '';
const cssText6b_show_more_button = FIX_SHOW_MORE_BUTTON_LOCATION ? `
yt-live-chat-renderer[has-action-panel-renderer] #show-more.yt-live-chat-item-list-renderer{
top: 4px;
transition-property: top;
bottom: unset;
}
yt-live-chat-renderer[has-action-panel-renderer] #show-more.yt-live-chat-item-list-renderer[disabled]{
top: -42px;
}
`: '';
const cssText6c_input_panel_overflow = FIX_INPUT_PANEL_OVERFLOW_ISSUE ? `
#input-panel #picker-buttons yt-live-chat-icon-toggle-button-renderer#product-picker {
contain: layout style;
}
#chat.yt-live-chat-renderer ~ #panel-pages.yt-live-chat-renderer {
overflow: visible;
}
`: '';
const cssText6d_input_panel_border = FIX_INPUT_PANEL_BORDER_ISSUE ? `
html #panel-pages.yt-live-chat-renderer > #input-panel.yt-live-chat-renderer:not(:empty) {
--yt-live-chat-action-panel-top-border: none;
}
html #panel-pages.yt-live-chat-renderer > #input-panel.yt-live-chat-renderer.iron-selected > *:first-child {
border-top: 1px solid var(--yt-live-chat-panel-pages-border-color);
}
html #panel-pages.yt-live-chat-renderer {
border-top: 0;
border-bottom: 0;
}
`: '';
const cssText7b_content_visibility_unset = FORCE_CONTENT_VISIBILITY_UNSET ? `
img,
yt-img-shadow[height][width],
yt-img-shadow {
content-visibility: visible !important;
}
` : '';
const cssText7c_will_change_unset = FORCE_WILL_CHANGE_UNSET ? `
/* remove YouTube constant will-change */
/* constant value will slow down the performance; default auto */
/* www-player.css */
html .ytp-contextmenu,
html .ytp-settings-menu {
will-change: unset;
}
/* frequently matched elements */
html .fill.yt-interaction,
html .stroke.yt-interaction,
html .yt-spec-touch-feedback-shape__fill,
html .yt-spec-touch-feedback-shape__stroke {
will-change: unset;
}
/* live_chat_polymer.js */
/*
html .toggle-button.tp-yt-paper-toggle-button,
html #primaryProgress.tp-yt-paper-progress,
html #secondaryProgress.tp-yt-paper-progress,
html #onRadio.tp-yt-paper-radio-button,
html .fill.yt-interaction,
html .stroke.yt-interaction,
html .yt-spec-touch-feedback-shape__fill,
html .yt-spec-touch-feedback-shape__stroke {
will-change: unset;
}
*/
/* desktop_polymer_enable_wil_icons.js */
/* html .fill.yt-interaction,
html .stroke.yt-interaction, */
html tp-yt-app-header::before,
html tp-yt-iron-list,
html #items.tp-yt-iron-list > *,
html #onRadio.tp-yt-paper-radio-button,
html .toggle-button.tp-yt-paper-toggle-button,
html ytd-thumbnail-overlay-toggle-button-renderer[use-expandable-tooltip] #label.ytd-thumbnail-overlay-toggle-button-renderer,
html #items.ytd-post-multi-image-renderer,
html #items.ytd-horizontal-card-list-renderer,
html #items.yt-horizontal-list-renderer,
html #left-arrow.yt-horizontal-list-renderer,
html #right-arrow.yt-horizontal-list-renderer,
html #items.ytd-video-description-infocards-section-renderer,
html #items.ytd-video-description-music-section-renderer,
html #chips.ytd-feed-filter-chip-bar-renderer,
html #chips.yt-chip-cloud-renderer,
html #items.ytd-merch-shelf-renderer,
html #items.ytd-product-details-image-carousel-renderer,
html ytd-video-preview,
html #player-container.ytd-video-preview,
html #primaryProgress.tp-yt-paper-progress,
html #secondaryProgress.tp-yt-paper-progress,
html ytd-miniplayer[enabled] /* ,
html .yt-spec-touch-feedback-shape__fill,
html .yt-spec-touch-feedback-shape__stroke */ {
will-change: unset;
}
/* other */
.ytp-videowall-still-info-content[class],
.ytp-suggestion-image[class] {
will-change: unset !important;
}
` : '';
function addCssElement() {
let s = document.createElement('style');
s.id = 'ewRvC';
return s;
}
const addCss = () => document.head.appendChild(dr(addCssElement())).textContent = `
@supports (contain: layout paint style) {
${cssText5}
}
@supports (color: var(--general)) {
html {
--yt-live-chat-item-list-renderer-padding: 0px 0px;
}
${cssText3_smooth_transform_position}
${cssText7c_will_change_unset}
${cssText7b_content_visibility_unset}
yt-live-chat-item-list-renderer:not([allow-scroll]) #item-scroller.yt-live-chat-item-list-renderer {
overflow-y: scroll;
padding-right: 0;
}
${cssText4_smooth_transform_forced_props}
yt-icon[icon="down_arrow"] > *, yt-icon-button#show-more > * {
pointer-events: none !important;
}
#continuations, #continuations * {
contain: strict;
position: fixed;
top: 2px;
height: 1px;
width: 2px;
height: 1px;
visibility: collapse;
}
${cssText6b_show_more_button}
${cssText6d_input_panel_border}
${cssText6c_input_panel_overflow}
}
@supports (overflow-anchor: auto) {
.no-anchor * {
overflow-anchor: none;
}
.no-anchor > item-anchor {
overflow-anchor: auto;
}
item-anchor {
height:1px;
width: 100%;
transform: scaleY(0.00001);
transform-origin:0 0;
contain: strict;
opacity:0;
display:flex;
position:relative;
flex-shrink:0;
flex-grow:0;
margin-bottom:0;
overflow:hidden;
box-sizing:border-box;
visibility: visible;
content-visibility: visible;
contain-intrinsic-size: auto 1px;
pointer-events:none !important;
}
#item-scroller.style-scope.yt-live-chat-item-list-renderer[class] {
overflow-anchor: initial !important; /* whenever ENABLE_OVERFLOW_ANCHOR or not */
}
html item-anchor {
height: 1px;
width: 1px;
top: auto;
left: auto;
right: auto;
bottom: auto;
transform: translateY(-1px);
position: absolute;
z-index: -1;
}
}
@supports (color: var(--pre-rendering)) {
@keyframes dontRenderAnimation {
0% {
background-position-x: 3px;
}
100% {
background-position-x: 4px;
}
}
/*html[dont-render-enabled] */ .dont-render{
visibility: collapse !important;
transform: scale(0.01) !important;
transform: scale(0.00001) !important;
transform: scale(0.0000001) !important;
transform-origin: 0 0 !important;
z-index:-1 !important;
contain: strict !important;
box-sizing: border-box !important;
height: 1px !important;
height: 0.1px !important;
height: 0.01px !important;
height: 0.0001px !important;
height: 0.000001px !important;
animation: dontRenderAnimation 1ms linear 80ms 1 normal forwards !important;
}
}
`;
const { IntersectionObserver } = __CONTEXT__;
/** @type {globalThis.PromiseConstructor} */
const Promise = (async () => { })().constructor; // YouTube hacks Promise in WaterFox Classic and "Promise.resolve(0)" nevers resolve.
if (!IntersectionObserver) return console.error("Your browser does not support IntersectionObserver.\nPlease upgrade to the latest version.")
const assertor = (f) => f() || console.assert(false, f + "");
const fnIntegrity = (f, d) => {
if (!f || typeof f !== 'function') {
console.warn('f is not a function', f);
return;
}
let p = f + "", s = 0, j = -1, w = 0;
for (let i = 0, l = p.length; i < l; i++) {
const t = p[i];
if (((t >= 'a' && t <= 'z') || (t >= 'A' && t <= 'Z'))) {
if (j < i - 1) w++;
j = i;
} else {
s++;
}
}
let itz = `${f.length}.${s}.${w}`;
if (!d) {
console.log(itz);
return null;
} else {
return itz === d;
}
}
let ENABLE_FULL_RENDER_REQUIRED_CAPABLE = false;
const isContainSupport = CSS.supports('contain', 'layout paint style');
if (!isContainSupport) {
console.warn("Your browser does not support css property 'contain'.\nPlease upgrade to the latest version.".trim());
} else {
ENABLE_FULL_RENDER_REQUIRED_CAPABLE = true; // mainly for Chromium-based browsers
}
let ENABLE_OVERFLOW_ANCHOR_CAPABLE = false;
const isOverflowAnchorSupport = CSS.supports('overflow-anchor', 'auto');
if (!isOverflowAnchorSupport) {
console.warn("Your browser does not support css property 'overflow-anchor'.\nPlease upgrade to the latest version.".trim());
} else {
ENABLE_OVERFLOW_ANCHOR_CAPABLE = true; // mainly for Chromium-based browsers
}
const ENABLE_OVERFLOW_ANCHOR = ENABLE_OVERFLOW_ANCHOR_PREFERRED && ENABLE_OVERFLOW_ANCHOR_CAPABLE && ENABLE_NO_SMOOTH_TRANSFORM;
const NOT_FIREFOX = !CSS.supports('-moz-appearance', 'none'); // 1. Firefox does not have the flicking issue; 2. Firefox's OVERFLOW_ANCHOR does not work very well as chromium.
const ENABLE_FULL_RENDER_REQUIRED = ENABLE_FULL_RENDER_REQUIRED_PREFERRED && ENABLE_FULL_RENDER_REQUIRED_CAPABLE && ENABLE_OVERFLOW_ANCHOR && ENABLE_NO_SMOOTH_TRANSFORM && NOT_FIREFOX;
const fxOperator = (proto, propertyName) => {
let propertyDescriptorGetter = null;
try {
propertyDescriptorGetter = Object.getOwnPropertyDescriptor(proto, propertyName).get;
} catch (e) { }
return typeof propertyDescriptorGetter === 'function' ? (e) => {
try {
return propertyDescriptorGetter.call(dr(e));
} catch (e) { }
return e[propertyName];
} : (e) => e[propertyName];
};
const nodeParent = fxOperator(Node.prototype, 'parentNode');
// const nFirstElem = fxOperator(HTMLElement.prototype, 'firstElementChild');
const nPrevElem = fxOperator(HTMLElement.prototype, 'previousElementSibling');
const nNextElem = fxOperator(HTMLElement.prototype, 'nextElementSibling');
const nLastElem = fxOperator(HTMLElement.prototype, 'lastElementChild');
const win = this instanceof Window ? this : window;
// Create a unique key for the script and check if it is already running
const hkey_script = 'mchbwnoasqph';
if (win[hkey_script]) throw new Error('Duplicated Userscript Calling'); // avoid duplicated scripting
win[hkey_script] = true;
const cleanContext = async (win) => {
const waitFn = requestAnimationFrame; // shall have been binded to window
try {
let mx = 16; // MAX TRIAL
const frameId = 'vanillajs-iframe-v1';
/** @type {HTMLIFrameElement | null} */
let frame = document.getElementById(frameId);
let removeIframeFn = null;
if (!frame) {
frame = document.createElement('iframe');
frame.id = 'vanillajs-iframe-v1';
frame.sandbox = 'allow-same-origin'; // script cannot be run inside iframe but API can be obtained from iframe
let n = document.createElement('noscript'); // wrap into NOSCRPIT to avoid reflow (layouting)
n.appendChild(frame);
while (!document.documentElement && mx-- > 0) await new Promise(waitFn); // requestAnimationFrame here could get modified by YouTube engine
const root = document.documentElement;
root.appendChild(n); // throw error if root is null due to exceeding MAX TRIAL
removeIframeFn = (setTimeout) => {
const removeIframeOnDocumentReady = (e) => {
e && win.removeEventListener("DOMContentLoaded", removeIframeOnDocumentReady, false);
win = null;
setTimeout(() => {
n.remove();
n = null;
}, 200);
}
if (document.readyState !== 'loading') {
removeIframeOnDocumentReady();
} else {
win.addEventListener("DOMContentLoaded", removeIframeOnDocumentReady, false);
}
}
}
while (!frame.contentWindow && mx-- > 0) await new Promise(waitFn);
const fc = frame.contentWindow;
if (!fc) throw "window is not found."; // throw error if root is null due to exceeding MAX TRIAL
const { requestAnimationFrame, setTimeout, cancelAnimationFrame } = fc;
const res = { requestAnimationFrame, setTimeout, cancelAnimationFrame };
for (let k in res) res[k] = res[k].bind(win); // necessary
if (removeIframeFn) Promise.resolve(res.setTimeout).then(removeIframeFn);
return res;
} catch (e) {
console.warn(e);
return null;
}
};
cleanContext(win).then(__CONTEXT__ => {
if (!__CONTEXT__) return null;
const { requestAnimationFrame, setTimeout, cancelAnimationFrame } = __CONTEXT__;
class RAFHub {
constructor() {
/** @type {number} */
this.startAt = 8170;
/** @type {number} */
this.counter = 0;
/** @type {number} */
this.rid = 0;
/** @type {Map<number, FrameRequestCallback>} */
this.funcs = new Map();
const funcs = this.funcs;
/** @type {FrameRequestCallback} */
this.bCallback = this.mCallback.bind(this);
this.pClear = () => funcs.clear();
}
/** @param {DOMHighResTimeStamp} highResTime */
mCallback(highResTime) {
this.rid = 0;
Promise.resolve().then(this.pClear);
this.funcs.forEach(func => Promise.resolve(highResTime).then(func).catch(console.warn));
}
/** @param {FrameRequestCallback} f */
request(f) {
if (this.counter > 1e9) this.counter = 9;
let cid = this.startAt + (++this.counter);
this.funcs.set(cid, f);
if (this.rid === 0) this.rid = requestAnimationFrame(this.bCallback);
return cid;
}
/** @param {number} cid */
cancel(cid) {
cid = +cid;
if (cid > 0) {
if (cid <= this.startAt) {
return cancelAnimationFrame(cid);
}
if (this.rid > 0) {
this.funcs.delete(cid);
if (this.funcs.size === 0) {
cancelAnimationFrame(this.rid);
this.rid = 0;
}
}
}
}
}
const sp7 = Symbol();
let dt0 = Date.now() - 2000;
const dateNow = () => Date.now() - dt0;
// let lastScroll = 0;
// let lastLShow = 0;
let lastWheel = 0;
let lastMouseDown = 0;
let lastMouseUp = 0;
let currentMouseDown = false;
let lastTouchDown = 0;
let lastTouchUp = 0;
let currentTouchDown = false;
let lastUserInteraction = 0;
let scrollChatFn = null;
ENABLE_FULL_RENDER_REQUIRED && (() => {
document.addEventListener('animationstart', (evt) => {
if (evt.animationName === 'dontRenderAnimation') {
evt.target.classList.remove('dont-render');
if (scrollChatFn) scrollChatFn();
}
}, true);
const f = (elm) => {
if (elm && elm.nodeType === 1) {
elm.classList.add('dont-render');
}
}
Node.prototype.__appendChild931__ = function (a) {
a = dr(a);
if (this.id === 'items' && this.classList.contains('yt-live-chat-item-list-renderer')) {
if (a && a.nodeType === 1) f(a);
else if (a instanceof DocumentFragment) {
for (let n = a.firstChild; n; n = n.nextSibling) {
f(n);
}
}
}
}
Node.prototype.__appendChild932__ = function () {
this.__appendChild931__.apply(this, arguments);
return Node.prototype.appendChild.apply(this, arguments);
}
})();
const proxyHelperFn = (dummy) => ({
get(target, prop) {
return (prop in dummy) ? dummy[prop] : prop === sp7 ? target : target[prop];
},
set(target, prop, value) {
if (!(prop in dummy)) {
target[prop] = value;
}
return true;
},
has(target, prop) {
return (prop in target);
},
deleteProperty(target, prop) {
return true;
},
ownKeys(target) {
return Object.keys(target);
},
defineProperty(target, key, descriptor) {
return Object.defineProperty(target, key, descriptor);
},
getOwnPropertyDescriptor(target, key) {
return Object.getOwnPropertyDescriptor(target, key);
},
});
/* globals WeakRef:false */
/** @type {(o: Object | null) => WeakRef | null} */
const mWeakRef = typeof WeakRef === 'function' ? (o => o ? new WeakRef(o) : null) : (o => o || null); // typeof InvalidVar == 'undefined'
/** @type {(wr: Object | null) => Object | null} */
const kRef = (wr => (wr && wr.deref) ? wr.deref() : wr);
const watchUserCSS = () => {
// if (!CSS.supports('contain-intrinsic-size', 'auto var(--wsr94)')) return;
const getElemFromWR = (nr) => {
const n = kRef(nr);
if (n && n.isConnected) return n;
return null;
}
const clearContentVisibilitySizing = () => {
Promise.resolve().then(() => {
let btnShowMoreWR = mWeakRef(document.querySelector('#show-more[disabled]'));
let lastVisibleItemWR = null;
for (const elm of document.querySelectorAll('[wSr93]')) {
if (elm.getAttribute('wSr93') === 'visible') lastVisibleItemWR = mWeakRef(elm);
elm.setAttribute('wSr93', '');
// custom CSS property --wsr94 not working when attribute wSr93 removed
}
requestAnimationFrame(() => {
const btnShowMore = getElemFromWR(btnShowMoreWR); btnShowMoreWR = null;
if (btnShowMore) btnShowMore.click();
else {
// would not work if switch it frequently
const lastVisibleItem = getElemFromWR(lastVisibleItemWR); lastVisibleItemWR = null;
if (lastVisibleItem) {
Promise.resolve()
.then(() => lastVisibleItem.scrollIntoView())
.then(() => lastVisibleItem.scrollIntoView(false))
.then(() => lastVisibleItem.scrollIntoView({ behavior: "instant", block: "end", inline: "nearest" }))
.catch(e => { }) // break the chain when method not callable
}
}
});
});
}
const mutObserver = new MutationObserver((mutations) => {
for (const mutation of mutations) {
if ((mutation.addedNodes || 0).length >= 1) {
for (const addedNode of mutation.addedNodes) {
if (addedNode.nodeName === 'STYLE') {
clearContentVisibilitySizing();
return;
}
}
}
if ((mutation.removedNodes || 0).length >= 1) {
for (const removedNode of mutation.removedNodes) {
if (removedNode.nodeName === 'STYLE') {
clearContentVisibilitySizing();
return;
}
}
}
}
});
mutObserver.observe(document.documentElement, {
childList: true,
subtree: false
});
mutObserver.observe(document.head, {
childList: true,
subtree: false
});
mutObserver.observe(document.body, {
childList: true,
subtree: false
});
}
const setupStyle = (m1, m2) => {
if (!ENABLE_NO_SMOOTH_TRANSFORM) return;
const dummy1v = {
transform: '',
height: '',
minHeight: '',
paddingBottom: '',
paddingTop: ''
};
const dummyStyleFn = (k) => (function () { const style = this[sp7]; return style[k](...arguments); });
for (const k of ['toString', 'getPropertyPriority', 'getPropertyValue', 'item', 'removeProperty', 'setProperty']) {
dummy1v[k] = dummyStyleFn(k);
}
const dummy1p = proxyHelperFn(dummy1v);
const sp1v = new Proxy(m1.style, dummy1p);
const sp2v = new Proxy(m2.style, dummy1p);
Object.defineProperty(m1, 'style', { get() { return sp1v }, set() { }, enumerable: true, configurable: true });
Object.defineProperty(m2, 'style', { get() { return sp2v }, set() { }, enumerable: true, configurable: true });
m1.removeAttribute("style");
m2.removeAttribute("style");
}
class WillChangeController {
constructor(itemScroller, willChangeValue) {
this.element = itemScroller;
this.counter = 0;
this.active = false;
this.willChangeValue = willChangeValue;
}
beforeOper() {
if (!this.active) {
this.active = true;
this.element.style.willChange = this.willChangeValue;
}
this.counter++;
}
afterOper() {
const c = this.counter;
requestAnimationFrame(() => {
if (c === this.counter) {
this.active = false;
this.element.style.willChange = '';
}
});
}
release() {
const element = this.element;
this.element = null;
this.counter = 1e16;
this.active = false;
try {
element.style.willChange = '';
} catch (e) { }
}
}
const { lcRendererElm, visObserver } = (() => {
let lcRendererWR = null;
const lcRendererElm = () => {
let lcRenderer = kRef(lcRendererWR);
if (!lcRenderer || !lcRenderer.isConnected) {
lcRenderer = document.querySelector('yt-live-chat-item-list-renderer.yt-live-chat-renderer');
lcRendererWR = lcRenderer ? mWeakRef(lcRenderer) : null;
}
return lcRenderer;
};
let hasFirstShowMore = false;
const visObserverFn = (entry) => {
const target = entry.target;
if (!target) return;
// if(target.classList.contains('dont-render')) return;
let isVisible = entry.isIntersecting === true && entry.intersectionRatio > 0.5;
// const h = entry.boundingClientRect.height;
/*
if (h < 16) { // wrong: 8 (padding/margin); standard: 32; test: 16 or 20
// e.g. under fullscreen. the element created but not rendered.
target.setAttribute('wSr93', '');
return;
}
*/
if (isVisible) {
// target.style.setProperty('--wsr94', h + 'px');
target.setAttribute('wSr93', 'visible');
if (nNextElem(target) === null) {
// firstVisibleItemDetected = true;
/*
if (dateNow() - lastScroll < 80) {
lastLShow = 0;
lastScroll = 0;
Promise.resolve().then(clickShowMore);
} else {
lastLShow = dateNow();
}
*/
// lastLShow = dateNow();
} else if (!hasFirstShowMore) { // should more than one item being visible
// implement inside visObserver to ensure there is sufficient delay
hasFirstShowMore = true;
requestAnimationFrame(() => {
// foreground page
// page visibly ready -> load the latest comments at initial loading
const lcRenderer = lcRendererElm();
if (lcRenderer) {
(lcRenderer.inst || lcRenderer).scrollToBottom_();
}
});
}
}
else if (target.getAttribute('wSr93') === 'visible') { // ignore target.getAttribute('wSr93') === '' to avoid wrong sizing
// target.style.setProperty('--wsr94', h + 'px');
target.setAttribute('wSr93', 'hidden');
} // note: might consider 0 < entry.intersectionRatio < 0.5 and target.getAttribute('wSr93') === '' <new last item>
}
const visObserver = new IntersectionObserver((entries) => {
for (const entry of entries) {
Promise.resolve(entry).then(visObserverFn);
}
}, {
// root: HTMLElement.prototype.closest.call(m2, '#item-scroller.yt-live-chat-item-list-renderer'), // nullable
rootMargin: "0px",
threshold: [0.05, 0.95],
});
return { lcRendererElm, visObserver }
})();
const { setupMutObserver } = (() => {
const mutFn = (items) => {
for (let node = nLastElem(items); node !== null; node = nPrevElem(node)) {
if (node.hasAttribute('wSr93')) break;
node.setAttribute('wSr93', '');
visObserver.observe(node);
}
}
const mutObserver = new MutationObserver((mutations) => {
const items = (mutations[0] || 0).target;
if (!items) return;
mutFn(items);
});
const setupMutObserver = (m2) => {
scrollChatFn = null;
mutObserver.disconnect();
mutObserver.takeRecords();
if (m2) {
if (typeof m2.__appendChild932__ === 'function') {
if (typeof m2.appendChild === 'function') m2.appendChild = m2.__appendChild932__;
if (typeof m2.__shady_native_appendChild === 'function') m2.__shady_native_appendChild = m2.__appendChild932__;
}
mutObserver.observe(m2, {
childList: true,
subtree: false
});
mutFn(m2);
if (ENABLE_OVERFLOW_ANCHOR) {
let items = m2;
let addedAnchor = false;
if (items) {
if (items.nextElementSibling === null) {
items.classList.add('no-anchor');
addedAnchor = true;
items.parentNode.appendChild(dr(document.createElement('item-anchor')));
}
}
if (addedAnchor) {
nodeParent(m2).classList.add('no-anchor'); // required
}
}
// let div = document.createElement('div');
// div.id = 'qwcc';
// HTMLElement.prototype.appendChild.call(document.querySelector('yt-live-chat-item-list-renderer'), div )
// bufferRegion =div;
// buffObserver.takeRecords();
// buffObserver.disconnect();
// buffObserver.observe(div, {
// childList: true,
// subtree: false
// })
}
}
return { setupMutObserver };
})();
const setupEvents = () => {
let scrollCount = 0;
const passiveCapture = typeof IntersectionObserver === 'function' ? { capture: true, passive: true } : true;
const delayFlushActiveItemsAfterUserActionK_ = () => {
const lcRenderer = lcRendererElm();
if (lcRenderer) {
const cnt = (lcRenderer.inst || lcRenderer);
if (!cnt.hasUserJustInteracted11_) return;
if (cnt.atBottom && cnt.allowScroll && cnt.activeItems_.length >= 1 && cnt.hasUserJustInteracted11_()) {
cnt.delayFlushActiveItemsAfterUserAction11_ && cnt.delayFlushActiveItemsAfterUserAction11_();
}
}
}
document.addEventListener('scroll', (evt) => {
if (!evt || !evt.isTrusted) return;
// lastScroll = dateNow();
if (++scrollCount > 1e9) scrollCount = 9;
}, passiveCapture); // support contain => support passive
let lastScrollCount = -1;
document.addEventListener('wheel', (evt) => {
if (!evt || !evt.isTrusted) return;
if (lastScrollCount === scrollCount) return;
lastScrollCount = scrollCount;
lastWheel = dateNow();
delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
}, passiveCapture); // support contain => support passive
document.addEventListener('mousedown', (evt) => {
if (!evt || !evt.isTrusted) return;
if (((evt || 0).target || 0).id !== 'item-scroller') return;
lastMouseDown = dateNow();
currentMouseDown = true;
lastUserInteraction = lastMouseDown;
}, passiveCapture);
document.addEventListener('pointerdown', (evt) => {
if (!evt || !evt.isTrusted) return;
if (((evt || 0).target || 0).id !== 'item-scroller') return;
lastMouseDown = dateNow();
currentMouseDown = true;
lastUserInteraction = lastMouseDown;
}, passiveCapture);
document.addEventListener('click', (evt) => {
if (!evt || !evt.isTrusted) return;
if (((evt || 0).target || 0).id !== 'item-scroller') return;
lastMouseDown = lastMouseUp = dateNow();
currentMouseDown = false;
lastUserInteraction = lastMouseDown;
delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
}, passiveCapture);
document.addEventListener('tap', (evt) => {
if (!evt || !evt.isTrusted) return;
if (((evt || 0).target || 0).id !== 'item-scroller') return;
lastMouseDown = lastMouseUp = dateNow();
currentMouseDown = false;
lastUserInteraction = lastMouseDown;
delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
}, passiveCapture);
document.addEventListener('mouseup', (evt) => {
if (!evt || !evt.isTrusted) return;
if (currentMouseDown) {
lastMouseUp = dateNow();
currentMouseDown = false;
lastUserInteraction = lastMouseUp;
delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
}
}, passiveCapture);
document.addEventListener('pointerup', (evt) => {
if (!evt || !evt.isTrusted) return;
if (currentMouseDown) {
lastMouseUp = dateNow();
currentMouseDown = false;
lastUserInteraction = lastMouseUp;
delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
}
}, passiveCapture);
document.addEventListener('touchstart', (evt) => {
if (!evt || !evt.isTrusted) return;
lastTouchDown = dateNow();
currentTouchDown = true;
lastUserInteraction = lastTouchDown;
}, passiveCapture);
document.addEventListener('touchmove', (evt) => {
if (!evt || !evt.isTrusted) return;
lastTouchDown = dateNow();
currentTouchDown = true;
lastUserInteraction = lastTouchDown;
}, passiveCapture);
document.addEventListener('touchend', (evt) => {
if (!evt || !evt.isTrusted) return;
if (currentTouchDown) {
lastTouchUp = dateNow();
currentTouchDown = false;
lastUserInteraction = lastTouchUp;
delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
}
}, passiveCapture);
document.addEventListener('touchcancel', (evt) => {
if (!evt || !evt.isTrusted) return;
if (currentTouchDown) {
lastTouchUp = dateNow();
currentTouchDown = false;
lastUserInteraction = lastTouchUp;
delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
}
}, passiveCapture);
}
const getProto = (element) => {
if (element) {
const cnt = element.inst || element;
return cnt.constructor.prototype || null;
}
return null;
}
const rafHub = (ENABLE_RAF_HACK_TICKERS || ENABLE_RAF_HACK_DOCKED_MESSAGE || ENABLE_RAF_HACK_INPUT_RENDERER || ENABLE_RAF_HACK_EMOJI_PICKER) ? new RAFHub() : null;
customYtElements.onRegistryReady(() => {
customElements.whenDefined('yt-live-chat-item-list-renderer').then(() => {
const tag = "yt-live-chat-item-list-renderer"
const dummy = document.createElement(tag);
const cProto = getProto(dummy);
if (!cProto || !cProto.attached) {
console.warn(`proto.attached for ${tag} is unavailable.`);
return;
}
console.groupCollapsed("YouTube Super Fast Check - yt-live-chat-item-list-renderer hacks");
const mclp = cProto;
try {
assertor(() => typeof mclp.scrollToBottom_ === 'function');
assertor(() => typeof mclp.flushActiveItems_ === 'function');
assertor(() => typeof mclp.canScrollToBottom_ === 'function');
assertor(() => typeof mclp.setAtBottom === 'function');
assertor(() => typeof mclp.scrollToBottom66_ === 'undefined');
assertor(() => typeof mclp.flushActiveItems66_ === 'undefined');
} catch (e) { }
try {
assertor(() => typeof mclp.attached === 'function');
assertor(() => typeof mclp.detached === 'function');
assertor(() => typeof mclp.canScrollToBottom_ === 'function');
assertor(() => typeof mclp.isSmoothScrollEnabled_ === 'function');
assertor(() => typeof mclp.maybeResizeScrollContainer_ === 'function');
assertor(() => typeof mclp.refreshOffsetContainerHeight_ === 'function');
assertor(() => typeof mclp.smoothScroll_ === 'function');
assertor(() => typeof mclp.resetSmoothScroll_ === 'function');
} catch (e) { }
mclp.__intermediate_delay__ = null;
let mzk = 0;
let myk = 0;
let mlf = 0;
let myw = 0;
let mzt = 0;
let zarr = null;
let mlg = 0;
if ((mclp.clearList || 0).length === 0) {
assertor(() => fnIntegrity(mclp.clearList, '0.106.50'));
mclp.clearList66 = mclp.clearList;
mclp.clearList = function () {
mzk++;
myk++;
mlf++;
myw++;
mzt++;
mlg++;
zarr = null;
this.__intermediate_delay__ = null;
this.clearList66();
};
console.log("clearList", "OK");
} else {
console.log("clearList", "NG");
}
let onListRendererAttachedDone = false;
function setList(itemOffset, items){
const isFirstTime = onListRendererAttachedDone === false;
if (isFirstTime) {
onListRendererAttachedDone = true;
Promise.resolve().then(watchUserCSS);
addCss();
setupEvents();
}
setupStyle(itemOffset, items);
setupMutObserver(items);
}
mclp.attached419 = async function () {
let maxTrial = 16;
while (!this.$ || !this.$['item-scroller'] || !this.$['item-offset'] || !this.$['items']) {
if (--maxTrial < 0) return;
await new Promise(requestAnimationFrame);
}
if (!this.$) {
console.warn("!this.$");
return;
}
if (!this.$) return;
/** @type {HTMLElement | null} */
const itemScroller = this.$['item-scroller'];
/** @type {HTMLElement | null} */
const itemOffset = this.$['item-offset'];
/** @type {HTMLElement | null} */
const items = this.$['items'];
if (!itemScroller || !itemOffset || !items) {
console.warn("items.parentNode !== itemOffset");
return;
}
if (nodeParent(items) !== itemOffset) {
console.warn("items.parentNode !== itemOffset");
return;
}
if (items.id !== 'items' || itemOffset.id !== "item-offset") {
console.warn("id incorrect");
return;
}
const isTargetItems = HTMLElement.prototype.matches.call(items, '#item-offset.style-scope.yt-live-chat-item-list-renderer > #items.style-scope.yt-live-chat-item-list-renderer')
if(!isTargetItems){
console.warn("!isTargetItems");
return;
}
setList(itemOffset, items);
}
mclp.attached331 = mclp.attached;
mclp.attached = function () {
this.attached419 && this.attached419();
return this.attached331();
}
mclp.detached331 = mclp.detached;
mclp.detached = function () {
setupMutObserver();
return this.detached331();
}
let t31_items = document.querySelector('#item-offset.style-scope.yt-live-chat-item-list-renderer > #items.style-scope.yt-live-chat-item-list-renderer');
let t31_itemOffset = t31_items ? nodeParent(t31_items) : null;
if (t31_items && t31_itemOffset) {
setList(t31_itemOffset, t31_items);
}
if ((mclp.async || 0).length === 2 && (mclp.cancelAsync || 0).length === 1) {
assertor(() => fnIntegrity(mclp.async, '2.24.15'));
assertor(() => fnIntegrity(mclp.cancelAsync, '1.15.8'));
/** @type {Map<number, any>} */
const aMap = new Map();
let count = 6150;
mclp.async66 = mclp.async;
mclp.async = function (e, f) {
// ensure the previous operation is done
// .async is usually after the time consuming functions like flushActiveItems_ and scrollToBottom_
const hasF = arguments.length === 2;
const stack = new Error().stack;
const isFlushAsync = stack.indexOf('flushActiveItems_') >= 0;
if (count > 1e9) count = 6159;
const resId = ++count;
aMap.set(resId, e);
(this.__intermediate_delay__ || Promise.resolve()).then(rk => {
const rp = aMap.get(resId);
if (typeof rp !== 'function') {
return;
}
let cancelCall = false;
if (isFlushAsync) {
if (rk < 0) {
cancelCall = true;
} else if (rk === 2 && arguments[0] === this.maybeScrollToBottom_) {
cancelCall = true;
}
}
if (cancelCall) {
aMap.delete(resId);
} else {
const asyncEn = function () {
aMap.delete(resId);
return rp.apply(this, arguments);
};
aMap.set(resId, hasF ? this.async66(asyncEn, f) : this.async66(asyncEn));
}
});
return resId;
}
mclp.cancelAsync66 = mclp.cancelAsync66;
mclp.cancelAsync = function (resId) {
if (resId <= 6150) {
this.cancelAsync66(resId);
} else if (aMap.has(resId)) {
const rp = aMap.get(resId);
aMap.delete(resId);
if (typeof rp !== 'function') {
this.cancelAsync66(rp);
}
}
}
console.log("async", "OK");
} else {
console.log("async", "NG");
}
if ((mclp.showNewItems_ || 0).length === 0 && ENABLE_NO_SMOOTH_TRANSFORM) {
assertor(() => fnIntegrity(mclp.showNewItems_, '0.170.79'));
mclp.showNewItems66_ = mclp.showNewItems_;
mclp.showNewItems77_ = async function () {
if (myk > 1e9) myk = 9;
let tid = ++myk;
await new Promise(requestAnimationFrame);
if (tid !== myk) {
return;
}
const cnt = this;
await Promise.resolve();
cnt.showNewItems66_();
await Promise.resolve();
}
mclp.showNewItems_ = function () {
const cnt = this;
cnt.__intermediate_delay__ = new Promise(resolve => {
cnt.showNewItems77_().then(() => {
resolve();
});
});
}
console.log("showNewItems_", "OK");
} else {
console.log("showNewItems_", "NG");
}
if ((mclp.flushActiveItems_ || 0).length === 0) {
assertor(() => fnIntegrity(mclp.flushActiveItems_, '0.137.81'));
let contensWillChangeController = null;
mclp.flushActiveItems66_ = mclp.flushActiveItems_;
mclp.flushActiveItems77_ = async function () {
try {
const cnt = this;
if (mlf > 1e9) mlf = 9;
let tid = ++mlf;
if (tid !== mlf || cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
if (!cnt.activeItems_ || cnt.activeItems_.length === 0) return;
// 4 times to maxItems to avoid frequent trimming.
// 1 ... 10 ... 20 ... 30 ... 40 ... 50 ... 60 => 16 ... 20 ... 30 ..... 60 ... => 16
this.activeItems_.length > this.data.maxItemsToDisplay * 4 && this.data.maxItemsToDisplay > 4 && this.activeItems_.splice(0, this.activeItems_.length - this.data.maxItemsToDisplay - 1);
if (cnt.canScrollToBottom_()) {
let immd = cnt.__intermediate_delay__;
await new Promise(requestAnimationFrame);
if (tid !== mlf || cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
if (!cnt.activeItems_ || cnt.activeItems_.length === 0) return;
mlf++;
if (mlg > 1e9) mlg = 9;
++mlg;
const oMaxItemsToDisplay = this.data.maxItemsToDisplay;
const reducedMaxItemsToDisplay = MAX_ITEMS_FOR_FULL_FLUSH;
let changeMaxItemsToDisplay = false;
if (ENABLE_REDUCED_MAXITEMS_FOR_FLUSH && this.activeItems_.length > this.data.maxItemsToDisplay) {
if (this.data.maxItemsToDisplay > reducedMaxItemsToDisplay) {
// as all the rendered chats are already "outdated"
// all old chats shall remove and reduced number of few chats will be rendered
// then restore to the original number
changeMaxItemsToDisplay = true;
this.data.maxItemsToDisplay = reducedMaxItemsToDisplay;
}
this.activeItems_.splice(0, this.activeItems_.length - this.data.maxItemsToDisplay);
// console.log('changeMaxItemsToDisplay 01', this.data.maxItemsToDisplay, oMaxItemsToDisplay, reducedMaxItemsToDisplay)
}
// it is found that it will render all stacked chats after switching back from background
// to avoid lagging in popular livestream with massive chats, trim first before rendering.
// this.activeItems_.length > this.data.maxItemsToDisplay && this.activeItems_.splice(0, this.activeItems_.length - this.data.maxItemsToDisplay);
const items = (cnt.$ || 0).items;
if (USE_WILL_CHANGE_CONTROLLER) {
if (contensWillChangeController && contensWillChangeController.element !== items) {
contensWillChangeController.release();
contensWillChangeController = null;
}
if (!contensWillChangeController) contensWillChangeController = new WillChangeController(items, 'contents');
}
const wcController = contensWillChangeController;
cnt.__intermediate_delay__ = Promise.all([cnt.__intermediate_delay__ || null, immd || null]);
wcController && wcController.beforeOper();
await Promise.resolve();
const len1 = cnt.activeItems_.length;
cnt.flushActiveItems66_();
const len2 = cnt.activeItems_.length;
let bAsync = len1 !== len2;
await Promise.resolve();
if (wcController) {
if (bAsync) {
cnt.async(() => {
wcController.afterOper();
});
} else {
wcController.afterOper();
}
}
if (changeMaxItemsToDisplay) {
if (this.data.maxItemsToDisplay === reducedMaxItemsToDisplay) {
this.data.maxItemsToDisplay = oMaxItemsToDisplay;
// console.log('changeMaxItemsToDisplay 02', this.data.maxItemsToDisplay, oMaxItemsToDisplay, reducedMaxItemsToDisplay)
}
}
if (!ENABLE_NO_SMOOTH_TRANSFORM) {
const ff = () => {
if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
// if (tid !== mlf || cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
if (!cnt.atBottom && cnt.allowScroll && cnt.hasUserJustInteracted11_ && !cnt.hasUserJustInteracted11_()) {
cnt.scrollToBottom_();
Promise.resolve().then(() => {
if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
if (!cnt.canScrollToBottom_()) cnt.scrollToBottom_();
});
}
}
ff();
Promise.resolve().then(ff);
// requestAnimationFrame(ff);
} else if (true) { // it might not be sticky to bottom when there is a full refresh.
const knt = cnt;
if (!scrollChatFn) {
const cnt = knt;
const f = () => {
const itemScroller = cnt.itemScroller;
if (!itemScroller || itemScroller.isConnected === false || cnt.isAttached === false) return;
if (!cnt.atBottom) {
cnt.scrollToBottom_();
} else if (itemScroller.scrollTop === 0) { // not yet interacted by user; cannot stick to bottom
itemScroller.scrollTop = itemScroller.scrollHeight;
}
};
scrollChatFn = () => Promise.resolve().then(f).then(f);
}
if (!ENABLE_FULL_RENDER_REQUIRED) scrollChatFn();
}
return 1;
} else {
// cnt.flushActiveItems66_();
// this.activeItems_.length > this.data.maxItemsToDisplay && this.activeItems_.splice(0, this.activeItems_.length - this.data.maxItemsToDisplay);
return 2;
}
} catch (e) {
console.warn(e);
}
}
mclp.flushActiveItems_ = function () {
const cnt = this;
if (arguments.length !== 0 || !cnt.activeItems_ || !cnt.canScrollToBottom_) return cnt.flushActiveItems66_.apply(this, arguments);
if (cnt.activeItems_.length === 0) {
cnt.__intermediate_delay__ = null;
return;
}
const cntData = ((cnt || 0).data || 0);
if (cntData.maxItemsToDisplay > MAX_ITEMS_FOR_TOTAL_DISPLAY) cntData.maxItemsToDisplay = MAX_ITEMS_FOR_TOTAL_DISPLAY;
// ignore previous __intermediate_delay__ and create a new one
cnt.__intermediate_delay__ = new Promise(resolve => {
cnt.flushActiveItems77_().then(rt => {
if (rt === 1) resolve(1); // success, scroll to bottom
else if (rt === 2) resolve(2); // success, trim
else resolve(-1); // skip
});
});
}
console.log("flushActiveItems_", "OK");
} else {
console.log("flushActiveItems_", "NG");
}
mclp.delayFlushActiveItemsAfterUserAction11_ = async function () {
try {
if (mlg > 1e9) mlg = 9;
const tid = ++mlg;
const keepTrialCond = () => this.atBottom && this.allowScroll && (tid === mlg) && this.isAttached === true && this.activeItems_.length >= 1 && (this.hostElement || 0).isConnected === true;
const runCond = () => this.canScrollToBottom_();
if (!keepTrialCond()) return;
if (runCond()) return this.flushActiveItems_() | 1; // avoid return promise
await new Promise(r => setTimeout(r, 80));
if (!keepTrialCond()) return;
if (runCond()) return this.flushActiveItems_() | 1;
await new Promise(requestAnimationFrame);
if (runCond()) return this.flushActiveItems_() | 1;
} catch (e) {
console.warn(e);
}
}
if ((mclp.atBottomChanged_ || 0).length === 1) {
// note: if the scrolling is too frequent, the show more visibility might get wrong.
assertor(() => fnIntegrity(mclp.atBottomChanged_, '1.75.39'));
const querySelector = HTMLElement.prototype.querySelector;
const U = (element) => ({
querySelector: (selector) => querySelector.call(element, selector)
});
let qid = 0;
mclp.atBottomChanged_ = function (a) {
let tid = ++qid;
var b = this;
a ? this.hideShowMoreAsync_ || (this.hideShowMoreAsync_ = this.async(function () {
if (tid !== qid) return;
U(b.hostElement).querySelector("#show-more").style.visibility = "hidden"
}, 200)) : (this.hideShowMoreAsync_ && this.cancelAsync(this.hideShowMoreAsync_),
this.hideShowMoreAsync_ = null,
U(this.hostElement).querySelector("#show-more").style.visibility = "visible")
}
console.log("atBottomChanged_", "OK");
} else {
console.log("atBottomChanged_", "NG");
}
if ((mclp.onScrollItems_ || 0).length === 1) {
assertor(() => fnIntegrity(mclp.onScrollItems_, '1.17.9'));
mclp.onScrollItems66_ = mclp.onScrollItems_;
mclp.onScrollItems77_ = async function (evt) {
if (myw > 1e9) myw = 9;
let tid = ++myw;
await new Promise(requestAnimationFrame);
if (tid !== myw) {
return;
}
const cnt = this;
await Promise.resolve();
if (USE_OPTIMIZED_ON_SCROLL_ITEMS) {
await Promise.resolve().then(() => {
this.ytRendererBehavior.onScroll(evt);
}).then(() => {
if (this.canScrollToBottom_()) {
const hasUserJustInteracted = this.hasUserJustInteracted11_ ? this.hasUserJustInteracted11_() : true;
if (hasUserJustInteracted) {
// only when there is an user action
this.setAtBottom();
return 1;
}
} else {
// no message inserting
this.setAtBottom();
return 1;
}
}).then((r) => {
if (this.activeItems_.length) {
if (this.canScrollToBottom_()) {
this.flushActiveItems_();
return 1 && r;
} else if (this.atBottom && this.allowScroll && (this.hasUserJustInteracted11_ && this.hasUserJustInteracted11_())) {
// delayed due to user action
this.delayFlushActiveItemsAfterUserAction11_ && this.delayFlushActiveItemsAfterUserAction11_();
return 0;
}
}
}).then((r) => {
if (r) {
// ensure setAtBottom is correctly set
this.setAtBottom();
}
});
} else {
cnt.onScrollItems66_(evt);
}
await Promise.resolve();
}
mclp.onScrollItems_ = function (evt) {
const cnt = this;
cnt.__intermediate_delay__ = new Promise(resolve => {
cnt.onScrollItems77_(evt).then(() => {
resolve();
});
});
}
console.log("onScrollItems_", "OK");
} else {
console.log("onScrollItems_", "NG");
}
if ((mclp.handleLiveChatActions_ || 0).length === 1) {
assertor(() => fnIntegrity(mclp.handleLiveChatActions_, '1.31.17'));
mclp.handleLiveChatActions66_ = mclp.handleLiveChatActions_;
mclp.handleLiveChatActions77_ = async function (arr) {
if (typeof (arr || 0).length !== 'number') {
this.handleLiveChatActions66_(arr);
return;
}
if (mzt > 1e9) mzt = 9;
let tid = ++mzt;
if (zarr === null) zarr = arr;
else Array.prototype.push.apply(zarr, arr);
arr = null;
await new Promise(requestAnimationFrame);
if (tid !== mzt || zarr === null) {
return;
}
const carr = zarr;
zarr = null;
await Promise.resolve();
this.handleLiveChatActions66_(carr);
await Promise.resolve();
}
mclp.handleLiveChatActions_ = function (arr) {
const cnt = this;
cnt.__intermediate_delay__ = new Promise(resolve => {
cnt.handleLiveChatActions77_(arr).then(() => {
resolve();
});
});
}
console.log("handleLiveChatActions_", "OK");
} else {
console.log("handleLiveChatActions_", "NG");
}
mclp.hasUserJustInteracted11_ = () => {
const t = dateNow();
return (t - lastWheel < 80) || currentMouseDown || currentTouchDown || (t - lastUserInteraction < 80);
}
if ((mclp.canScrollToBottom_ || 0).length === 0) {
assertor(() => fnIntegrity(mclp.canScrollToBottom_, '0.9.5'));
mclp.canScrollToBottom_ = function () {
return this.atBottom && this.allowScroll && !this.hasUserJustInteracted11_();
}
console.log("canScrollToBottom_", "OK");
} else {
console.log("canScrollToBottom_", "NG");
}
if (ENABLE_NO_SMOOTH_TRANSFORM) {
mclp.isSmoothScrollEnabled_ = function () {
return false;
}
mclp.maybeResizeScrollContainer_ = function () {
//
}
mclp.refreshOffsetContainerHeight_ = function () {
//
}
mclp.smoothScroll_ = function () {
//
}
mclp.resetSmoothScroll_ = function () {
//
}
console.log("ENABLE_NO_SMOOTH_TRANSFORM", "OK");
} else {
console.log("ENABLE_NO_SMOOTH_TRANSFORM", "NG");
}
console.groupEnd();
});
const tickerContainerSetAttribute = function (attrName, attrValue) { // ensure '14.30000001%'.toFixed(1)
let yd = (this.__dataHost || (this.inst || 0).__dataHost).__data;
if (arguments.length === 2 && attrName === 'style' && yd && attrValue) {
// let v = yd.containerStyle.privateDoNotAccessOrElseSafeStyleWrappedValue_;
let v = `${attrValue}`;
// conside a ticker is 101px width
// 1% = 1.01px
// 0.2% = 0.202px
const ratio1 = (yd.ratio * 100);
if (ratio1 > -1) { // avoid NaN
// countdownDurationMs
// 600000 - 0.2% <1% = 6s> <0.2% = 1.2s>
// 300000 - 0.5% <1% = 3s> <0.5% = 1.5s>
// 150000 - 1% <1% = 1.5s>
// 75000 - 2% <1% =0.75s > <2% = 1.5s>
// 30000 - 5% <1% =0.3s > <5% = 1.5s>
// 99px * 5% = 4.95px
// 15000 - 10% <1% =0.15s > <10% = 1.5s>
// 1% Duration
let ratio2 = ratio1;
const ydd = yd.data;
const d1 = ydd.durationSec;
const d2 = ydd.fullDurationSec;
if (d1 === d2 && d1 > 1) {
if (d1 > 400) ratio2 = Math.round(ratio2 * 5) / 5; // 0.2%
else if (d1 > 200) ratio2 = Math.round(ratio2 * 2) / 2; // 0.5%
else if (d1 > 100) ratio2 = Math.round(ratio2 * 1) / 1; // 1%
else if (d1 > 50) ratio2 = Math.round(ratio2 * 0.5) / 0.5; // 2%
else if (d1 > 25) ratio2 = Math.round(ratio2 * 0.2) / 0.2; // 5% (max => 99px * 5% = 4.95px)
else ratio2 = Math.round(ratio2 * 0.2) / 0.2;
} else {
ratio2 = Math.round(ratio2 * 5) / 5; // 0.2% (min)
}
// ratio2 = Math.round(ratio2 * 5) / 5;
ratio2 = ratio2.toFixed(1);
v = v.replace(`${ratio1}%`, `${ratio2}%`).replace(`${ratio1}%`, `${ratio2}%`);
if (yd.__style_last__ === v) return;
yd.__style_last__ = v;
// do not consider any delay here.
// it shall be inside the looping for all properties changes. all the css background ops are in the same microtask.
}
HTMLElement.prototype.setAttribute.call(dr(this), attrName, v);
} else {
HTMLElement.prototype.setAttribute.apply(dr(this), arguments);
}
};
const fp = (renderer) => {
const cnt = renderer.inst || renderer;
assertor(() => typeof (cnt || 0).is === 'string');
assertor(() => ((cnt || 0).hostElement || 0).nodeType === 1);
const container = (cnt.$ || 0).container;
if (container) {
assertor(() => (container || 0).nodeType === 1);
assertor(() => typeof container.setAttribute === 'function');
container.setAttribute = tickerContainerSetAttribute;
} else {
console.warn(`"container" does not exist in ${cnt.is}`);
}
};
const tags = ["yt-live-chat-ticker-paid-message-item-renderer", "yt-live-chat-ticker-paid-sticker-item-renderer",
"yt-live-chat-ticker-renderer", "yt-live-chat-ticker-sponsor-item-renderer"];
Promise.all(tags.map(tag => customElements.whenDefined(tag))).then(() => {
console.groupCollapsed("YouTube Super Fast Check - yt-live-chat-ticker-... hacks");
console.log("[Begin]");
for (const tag of tags) {
const dummy = document.createElement(tag);
const cProto = getProto(dummy);
if (!cProto || !cProto.attached) {
console.warn(`proto.attached for ${tag} is unavailable.`);
continue;
}
cProto.attached77 = cProto.attached;
cProto.attached = function () {
fp(this.hostElement || this);
return this.attached77();
}
for (const elm of document.getElementsByTagName(tag)) {
fp(elm);
}
if (ENABLE_RAF_HACK_TICKERS && rafHub !== null) {
// cancelable - this.rafId < isAnimationPausedChanged >
let doHack = false;
if (typeof cProto.startCountdown === 'function' && typeof cProto.updateTimeout === 'function' && typeof cProto.isAnimationPausedChanged === 'function') {
console.log('startCountdown', typeof cProto.startCountdown)
console.log('updateTimeout', typeof cProto.updateTimeout)
console.log('isAnimationPausedChanged', typeof cProto.isAnimationPausedChanged)
doHack = fnIntegrity(cProto.startCountdown, '2.66.37') && fnIntegrity(cProto.updateTimeout, '1.76.45') && fnIntegrity(cProto.isAnimationPausedChanged, '2.56.30')
}
if (doHack) {
cProto.startCountdown = function (a, b) {
// console.log('cProto.startCountdown', tag) // yt-live-chat-ticker-sponsor-item-renderer
if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
b = void 0 === b ? 0 : b;
void 0 !== a && (this.countdownMs = 1E3 * a,
this.countdownDurationMs = b ? 1E3 * b : this.countdownMs,
this.ratio = 1,
this.lastCountdownTimeMs || this.isAnimationPaused || (this.lastCountdownTimeMs = performance.now(),
this.rafId = rafHub.request(this.boundUpdateTimeout37_)))
};
cProto.updateTimeout = function (a) {
// console.log('cProto.updateTimeout', tag) // yt-live-chat-ticker-sponsor-item-renderer
if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
this.countdownMs = Math.max(0, this.countdownMs - (a - (this.lastCountdownTimeMs || 0)));
this.ratio = this.countdownMs / this.countdownDurationMs;
this.isAttached && this.countdownMs ? (this.lastCountdownTimeMs = a,
this.rafId = rafHub.request(this.boundUpdateTimeout37_)) : (this.lastCountdownTimeMs = null,
this.isAttached && ("auto" === this.hostElement.style.width && this.setContainerWidth(),
this.slideDown()))
};
cProto.isAnimationPausedChanged = function (a, b) {
if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
a ? rafHub.cancel(this.rafId) : !a && b && (a = this.lastCountdownTimeMs || 0,
this.detlaSincePausedSecs && (a = (this.lastCountdownTimeMs || 0) + 1E3 * this.detlaSincePausedSecs,
this.detlaSincePausedSecs = 0),
this.boundUpdateTimeout37_(a),
this.lastCountdownTimeMs = window.performance.now())
};
console.log('RAF_HACK_TICKERS', tag, "OK")
} else {
console.log('RAF_HACK_TICKERS', tag, "NG")
}
}
}
console.log("[End]");
console.groupEnd();
})
if (ENABLE_RAF_HACK_INPUT_RENDERER && rafHub !== null) {
customElements.whenDefined("yt-live-chat-message-input-renderer").then(() => {
console.groupCollapsed("YouTube Super Fast Check - yt-live-chat-message-input-renderer hacks");
console.log("[Begin]");
(() => {
const tag = "yt-live-chat-message-input-renderer"
const dummy = document.createElement(tag);
const cProto = getProto(dummy);
if (!cProto || !cProto.attached) {
console.warn(`proto.attached for ${tag} is unavailable.`);
return;
}
let doHack = false;
if (typeof cProto.handleTimeout === 'function' && typeof cProto.updateTimeout === 'function') {
// not cancellable
console.log('handleTimeout', typeof cProto.handleTimeout)
console.log('updateTimeout', typeof cProto.updateTimeout)
doHack = fnIntegrity(cProto.handleTimeout, '1.27.16') && fnIntegrity(cProto.updateTimeout, '1.50.33');
}
if (doHack) {
cProto.handleTimeout = function (a) {
console.log('cProto.handleTimeout', tag)
if (!this.boundUpdateTimeout38_) this.boundUpdateTimeout38_ = this.updateTimeout.bind(this);
this.timeoutDurationMs = this.timeoutMs = a;
this.countdownRatio = 1;
0 === this.lastTimeoutTimeMs && rafHub.request(this.boundUpdateTimeout38_)
};
cProto.updateTimeout = function (a) {
console.log('cProto.updateTimeout', tag)
if (!this.boundUpdateTimeout38_) this.boundUpdateTimeout38_ = this.updateTimeout.bind(this);
this.lastTimeoutTimeMs && (this.timeoutMs = Math.max(0, this.timeoutMs - (a - this.lastTimeoutTimeMs)),
this.countdownRatio = this.timeoutMs / this.timeoutDurationMs);
this.isAttached && this.timeoutMs ? (this.lastTimeoutTimeMs = a,
rafHub.request(this.boundUpdateTimeout38_)) : this.lastTimeoutTimeMs = 0
};
console.log('RAF_HACK_INPUT_RENDERER', tag, "OK")
} else {
console.log('RAF_HACK_INPUT_RENDERER', tag, "NG")
}
})();
console.log("[End]");
console.groupEnd();
})
}
if (ENABLE_RAF_HACK_EMOJI_PICKER && rafHub !== null) {
customElements.whenDefined("yt-emoji-picker-renderer").then(() => {
console.groupCollapsed("YouTube Super Fast Check - yt-emoji-picker-renderer hacks");
console.log("[Begin]");
(() => {
const tag = "yt-emoji-picker-renderer"
const dummy = document.createElement(tag);
const cProto = getProto(dummy);
if (!cProto || !cProto.attached) {
console.warn(`proto.attached for ${tag} is unavailable.`);
return;
}
let doHack = false;
if (typeof cProto.animateScroll_ === 'function') {
// not cancellable
console.log('animateScroll_', typeof cProto.animateScroll_)
doHack = fnIntegrity(cProto.animateScroll_, '1.102.49')
}
if (doHack) {
const querySelector = HTMLElement.prototype.querySelector;
const U = (element) => ({
querySelector: (selector) => querySelector.call(element, selector)
});
cProto.animateScroll_ = function (a) {
// console.log('cProto.animateScroll_', tag) // yt-emoji-picker-renderer
if (!this.boundAnimateScroll39_) this.boundAnimateScroll39_ = this.animateScroll_.bind(this);
this.lastAnimationTime_ || (this.lastAnimationTime_ = a);
a -= this.lastAnimationTime_;
200 > a ? (U(this.hostElement).querySelector("#categories").scrollTop = this.animationStart_ + (this.animationEnd_ - this.animationStart_) * a / 200,
rafHub.request(this.boundAnimateScroll39_)) : (null != this.animationEnd_ && (U(this.hostElement).querySelector("#categories").scrollTop = this.animationEnd_),
this.animationEnd_ = this.animationStart_ = null,
this.lastAnimationTime_ = 0);
this.updateButtons_()
}
console.log('ENABLE_RAF_HACK_EMOJI_PICKER', tag, "OK")
} else {
console.log('ENABLE_RAF_HACK_EMOJI_PICKER', tag, "NG")
}
})();
console.log("[End]");
console.groupEnd();
});
}
if (ENABLE_RAF_HACK_DOCKED_MESSAGE && rafHub !== null) {
customElements.whenDefined("yt-live-chat-docked-message").then(() => {
console.groupCollapsed("YouTube Super Fast Check - yt-live-chat-docked-message hacks");
console.log("[Begin]");
(() => {
const tag = "yt-live-chat-docked-message"
const dummy = document.createElement(tag);
const cProto = getProto(dummy);
if (!cProto || !cProto.attached) {
console.warn(`proto.attached for ${tag} is unavailable.`);
return;
}
let doHack = false;
if (typeof cProto.detached === 'function' && typeof cProto.checkIntersections === 'function' && typeof cProto.onDockableMessagesChanged === 'function' && typeof cProto.boundCheckIntersections === 'undefined') {
// cancelable - this.intersectRAF <detached>
// yt-live-chat-docked-message
// boundCheckIntersections <-> checkIntersections
// onDockableMessagesChanged
// this.intersectRAF = window.requestAnimationFrame(this.boundCheckIntersections);
console.log('detached', typeof cProto.detached)
console.log('checkIntersections', typeof cProto.checkIntersections)
console.log('onDockableMessagesChanged', typeof cProto.onDockableMessagesChanged)
doHack = fnIntegrity(cProto.detached, '0.32.22') && fnIntegrity(cProto.checkIntersections, '0.128.85') && fnIntegrity(cProto.onDockableMessagesChanged, '0.20.11')
}
if (doHack) {
cProto.checkIntersections = function () {
console.log('cProto.checkIntersections', tag)
if (this.dockableMessages.length) {
this.intersectRAF = rafHub.request(this.boundCheckIntersections);
var a = this.dockableMessages[0]
, b = this.hostElement.getBoundingClientRect();
a = a.getBoundingClientRect();
var c = a.top - b.top
, d = 8 >= c;
c = 8 >= c - this.hostElement.clientHeight;
if (d) {
for (var e; d;) {
e = this.dockableMessages.shift();
d = this.dockableMessages[0];
if (!d)
break;
d = d.getBoundingClientRect();
c = d.top - b.top;
var f = 8 >= c;
if (8 >= c - a.height)
if (f)
a = d;
else
return;
d = f
}
this.dock(e)
} else
c && this.dockedItem && this.clear()
} else
this.intersectRAF = 0
}
cProto.onDockableMessagesChanged = function () {
// console.log('cProto.onDockableMessagesChanged', tag) // yt-live-chat-docked-message
this.dockableMessages.length && !this.intersectRAF && (this.intersectRAF = rafHub.request(this.boundCheckIntersections))
}
cProto.detached = function () {
this.intersectRAF && rafHub.cancel(this.intersectRAF)
}
console.log('ENABLE_RAF_HACK_DOCKED_MESSAGE', tag, "OK")
} else {
console.log('ENABLE_RAF_HACK_DOCKED_MESSAGE', tag, "NG")
}
})();
console.log("[End]");
console.groupEnd();
});
}
});
});
})({ IntersectionObserver });
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