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469878-youtube-chat.js
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469878-youtube-chat.js
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// ==UserScript==
// @name YouTube Super Fast Chat
// @version 0.65.1
// @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://raw.githubusercontent.com/cyfung1031/userscript-supports/main/icons/super-fast-chat.png
// @namespace UserScript
// @match https://www.youtube.com/live_chat*
// @match https://www.youtube.com/live_chat_replay*
// @author CY Fung
// @run-at document-start
// @grant none
// @unwrap
// @allFrames true
// @inject-into page
// @require https://update.greasyfork.org/scripts/475632/1361351/ytConfigHacks.js
//
// @compatible firefox Violentmonkey
// @compatible firefox Tampermonkey
// @compatible firefox FireMonkey
// @compatible chrome Violentmonkey
// @compatible chrome Tampermonkey
// @compatible opera Violentmonkey
// @compatible opera Tampermonkey
// @compatible safari Stay
// @compatible edge Violentmonkey
// @compatible edge Tampermonkey
// @compatible brave Violentmonkey
// @compatible brave Tampermonkey
//
// @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 WeakMap = window.WeakMapOriginal || window.WeakMap;
// *********** DON'T REPORT NOT WORKING DUE TO THE CHANGED SETTINGS ********************
// The settings are FIXED! You might change them to try but if the script does not work due to your change, please, don't report them as issues
const ENABLE_REDUCED_MAXITEMS_FOR_FLUSH = true; // TRUE to enable trimming down to MAX_ITEMS_FOR_FULL_FLUSH (25) messages when there are too many unrendered messages
const MAX_ITEMS_FOR_TOTAL_DISPLAY = 90; // By default, 250 latest messages will be displayed, but displaying MAX_ITEMS_FOR_TOTAL_DISPLAY (90) messages is already sufficient. (not exceeding 900)
const MAX_ITEMS_FOR_FULL_FLUSH = 25; // If there are too many new (stacked) messages not yet rendered, clean all and flush MAX_ITEMS_FOR_FULL_FLUSH (25) latest messages then incrementally added back to MAX_ITEMS_FOR_TOTAL_DISPLAY (90) messages. (not exceeding 900)
const ENABLE_NO_SMOOTH_TRANSFORM = true; // Depends on whether you want the animation effect for new chat messages <<< DON'T CHANGE >>>
const USE_OPTIMIZED_ON_SCROLL_ITEMS = true; // TRUE for the majority
const ENABLE_OVERFLOW_ANCHOR_PREFERRED = true; // Enable `overflow-anchor: auto` to lock the scroll list at the bottom for no smooth transform.
const FIX_SHOW_MORE_BUTTON_LOCATION = true; // When there are voting options (bottom panel), move the "show more" button to the top.
const FIX_INPUT_PANEL_OVERFLOW_ISSUE = true; // When the super chat button is flicking with color, the scrollbar might come out.
const FIX_INPUT_PANEL_BORDER_ISSUE = true; // No border should be allowed if there is an empty input panel.
const SET_CONTAIN_FOR_CHATROOM = true; // Rendering hacks (`contain`) for chatroom elements. [ General ]
const FORCE_CONTENT_VISIBILITY_UNSET = true; // Content-visibility should be always VISIBLE for high performance and great rendering.
const FORCE_WILL_CHANGE_UNSET = true; // Will-change should be always UNSET (auto) for high performance and low energy impact.
// Replace requestAnimationFrame timers with custom implementation
const ENABLE_RAF_HACK_TICKERS = true; // When there is a ticker
const ENABLE_RAF_HACK_DOCKED_MESSAGE = true; // To be confirmed
const ENABLE_RAF_HACK_INPUT_RENDERER = true; // To be confirmed
const ENABLE_RAF_HACK_EMOJI_PICKER = true; // When changing the page of the emoji picker
// Force rendering all the character subsets of the designated font(s) before messages come (Pre-Rendering of Text)
const ENABLE_FONT_PRE_RENDERING_PREFERRED = 1 | 2 | 4 | 8 | 16;
// Backdrop `filter: blur(4px)` inside the iframe can extend to the whole page, causing a negative visual impact on the video you are watching.
const NO_BACKDROP_FILTER_WHEN_MENU_SHOWN = true;
// Data Manipulation for Participants (Participant List)
// << if DO_PARTICIPANT_LIST_HACKS >>
const DO_PARTICIPANT_LIST_HACKS = true; // TRUE for the majority
const SHOW_PARTICIPANT_CHANGES_IN_CONSOLE = false; // Just too annoying to show them all in popular chat
const CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT = true; // Only consider changes in renderable content (not concerned with the last chat message of the participants)
const PARTICIPANT_UPDATE_ONLY_ONLY_IF_MODIFICATION_DETECTED = true;
// << end >>
// show more button
const ENABLE_SHOW_MORE_BLINKER = true; // BLINK WHEN NEW MESSAGES COME
// faster stampDomArray_ for participants list creation
const ENABLE_FLAGS_MAINTAIN_STABLE_LIST_VAL = 1; // 0 - OFF; 1 - ON; 2 - ON(PARTICIPANTS_LIST ONLY)
const USE_MAINTAIN_STABLE_LIST_ONLY_WHEN_KS_FLAG_IS_SET = false;
// reuse yt components
const ENABLE_FLAGS_REUSE_COMPONENTS = true;
// ShadyDom Free is buggy
const DISABLE_FLAGS_SHADYDOM_FREE = true;
// images <Group#I01>
const AUTHOR_PHOTO_SINGLE_THUMBNAIL = 1; // 0 - disable; 1- smallest; 2- largest
const EMOJI_IMAGE_SINGLE_THUMBNAIL = 1; // 0 - disable; 1- smallest; 2- largest
const LEAST_IMAGE_SIZE = 48; // minium size = 48px
const DO_LINK_PREFETCH = true; // DO NOT CHANGE
// << if DO_LINK_PREFETCH >>
const ENABLE_BASE_PREFETCHING = true; // (SUB-)DOMAIN | dns-prefetch & preconnect
const ENABLE_PRELOAD_THUMBNAIL = true; // subresource (prefetch) [LINK for Images]
const SKIP_PRELOAD_EMOJI = true;
const PREFETCH_LIMITED_SIZE_EMOJI = 512; // DO NOT CHANGE THIS
const PREFETCH_LIMITED_SIZE_AUTHOR_PHOTO = 68; // DO NOT CHANGE THIS
// << end >>
const FIX_SETSRC_AND_THUMBNAILCHANGE_ = true; // Function Replacement for yt-img-shadow....
const FIX_THUMBNAIL_DATACHANGED = true; // Function Replacement for yt-live-chat-author-badge-renderer..dataChanged
// const REMOVE_PRELOADAVATARFORADDACTION = false; // Function Replacement for yt-live-chat-renderer..preloadAvatarForAddAction
const FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION = true; // important [depends on <Group#I01>]
const FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT = true; // [depends on <Group#I01>]
const ATTEMPT_ANIMATED_TICKER_BACKGROUND = ''; // false OR '' for disabled, 'linear', 'steps' for easing-function
// <<<< ATTEMPT_ANIMATED_TICKER_BACKGROUND to be reviewed with memory leakage issues >>>>
// << if ATTEMPT_ANIMATED_TICKER_BACKGROUND >>
// BROWSER SUPPORT: Chrome 75+, Edge 79+, Safari 13.1+, Firefox 63+, Opera 62+
const TICKER_MAX_STEPS_LIMIT = 500; // NOT LESS THAN 5 STEPS!!
// [limiting 500 max steps] is recommended for "confortable visual change"
// min. step increment 0.2% => max steps: 500 => 800ms per each update
// min. step increment 0.5% => max steps: 200 => 1000ms per each update
// min. step increment 1.0% => max steps: 100 => 1000ms per each update
// min. step increment 2.5% => max steps: 40 => 1000ms per each update
// min. step increment 5.0% => max steps: 20 => 1250ms per each update
const ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX = true; // for video playback's ticker issue. [ Playback Replay - Pause at Middle - Backwards Seeking ]
const SKIP_VIDEO_PLAYBACK_PROGRESS_STATE_FIX_FOR_NO_TIMEFX = false; // debug use; yt-live-chat-ticker-renderer might not require ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX
// << end >>
const FIX_TOOLTIP_DISPLAY = true; // changed in 2024.05.02
const USE_VANILLA_DEREF = true;
const FIX_DROPDOWN_DERAF = true; // DONT CHANGE
const CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN = true; // cache the menu data and used for the next reopen
const ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU = false; // pause auto scroll faster when the context menu is about to show
const ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU = true; // avoid multiple requests on the same time
const BOOST_MENU_OPENCHANGED_RENDERING = true;
const FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK = true; // click again = close
const NO_ITEM_TAP_FOR_NON_STATIONARY_TAP = true; // dont open the menu (e.g. text message) if cursor is moved or long press
const TAP_ACTION_DURATION = 280; // exceeding 280ms would not consider as a tap action
const PREREQUEST_CONTEXT_MENU_ON_MOUSE_DOWN = true; // require CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN = true
// const FIX_MENU_CAPTURE_SCROLL = true;
const CHAT_MENU_REFIT_ALONG_SCROLLING = 0; // 0 for locking / default; 1 for unlocking only; 2 for unlocking and refit
const RAF_FIX_keepScrollClamped = true;
const RAF_FIX_scrollIncrementally = 2; // 0: no action; 1: basic fix; 2: also fix scroll position
// << if BOOST_MENU_OPENCHANGED_RENDERING >>
const FIX_MENU_POSITION_N_SIZING_ON_SHOWN = 1; // correct size and position when the menu dropdown opens
const CHECK_JSONPRUNE = true; // This is a bug in Brave
// << end >>
// const LIVE_CHAT_FLUSH_ON_FOREGROUND_ONLY = false;
const CHANGE_DATA_FLUSH_ASYNC = false;
// CHANGE_DATA_FLUSH_ASYNC is disabled due to bug report: https://greasyfork.org/scripts/469878/discussions/199479
// to be further investigated
const CHANGE_MANAGER_UNSUBSCRIBE = true;
const INTERACTIVITY_BACKGROUND_ANIMATION = 1; // mostly for pinned message
// 0 = default Yt animation background [= no fix];
// 1 = disable default animation background [= keep special animation];
// 2 = disable all animation backgrounds [= no animation backbround]
const CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED = true;
const MAX_TOOLTIP_NO_WRAP_WIDTH = '72vw'; // '' for disable; accept values like '60px', '25vw'
const AMEND_TICKER_handleLiveChatAction = false; // to fix ticker duplication and unresponsively fast ticker generation
// AMEND_TICKER_handleLiveChatAction to be fixed (2024.05.21)
const AMEND_TICKER_handleLiveChatAction_v3 = true; // responsiveness fix (Major Feature)
const ATTEMPT_TICKER_ANIMATION_START_TIME_DETECTION = true;
const ADJUST_TICKER_DURATION_ALIGN_RENDER_TIME = true;
const FIX_BATCH_TICKER_ORDER = true;
const DISABLE_Translation_By_Google = true;
const FASTER_ICON_RENDERING = true;
const DELAY_FOCUSEDCHANGED = true;
const skipErrorForhandleAddChatItemAction_ = true; // currently depends on ENABLE_NO_SMOOTH_TRANSFORM
const fixChildrenIssue801 = true; // if __children801__ is set [fix polymer controller method extration for `.set()`]
const SUPPRESS_refreshOffsetContainerHeight_ = true; // added in FEB 2024; true for default layout options; no effect if ENABLE_NO_SMOOTH_TRANSFORM is false
const NO_FILTER_DROPDOWN_BORDER = true; // added in 2024.03.02
const FIX_ANIMATION_TICKER_TEXT_POSITION = true; // CSS fix; experimental; added in 2024.04.07
const FIX_AUTHOR_CHIP_BADGE_POSITION = true;
const FIX_ToggleRenderPolymerControllerExtractionBug = false; // to be reviewed
const REACTION_ANIMATION_PANEL_CSS_FIX = true;
// -------------------------------
const FIX_MEMORY_LEAKAGE_TICKER_ACTIONMAP = true; // To fix Memory Leakage in yt-live-chat-ticker-...-item-renderer
const FIX_MEMORY_LEAKAGE_TICKER_STATSBAR = true; // To fix Memory Leakage in updateStatsBarAndMaybeShowAnimation
const FIX_MEMORY_LEAKAGE_TICKER_TIMER = true; // To fix Memory Leakage in setContainerWidth, slideDown, collapse
const FIX_MEMORY_LEAKAGE_TICKER_DATACHANGED_setContainerWidth = true; // To fix Memory Leakage due to _.ytLiveChatTickerItemBehavior.setContainerWidth()
// leakage in ytd-sponsorships-live-chat-gift-purchase-announcement-renderer - to be confirmed
// <<<<< FOR MEMORY LEAKAGE >>>>
const DEBUG_wmList = false;
let DEBUG_wmList_started = false;
// const FLAG_001 = true;
const FLAG_001a = false;
const FLAG_001b = false;
const FLAG_001c = false;
const FLAG_001d = false;
const FLAG_001e = false;
const FLAG_001f = false;
// const FLAG_001g = true;
/**
*
*
*
*
*
rendererStamperObserver_: function(a, b, c) {
if (c.path == a) {
if (c.value === void 0 && !this.hasDataPath_[a])
return;
this.hasDataPath_[a] = c.value !== void 0
}
this.rendererStamperApplyChangeRecord_(a, b, c)
},
addStampDomObserverFns_: function() {
for (var a in this.stampDom) {
var b = this.stampDom[a];
b.id ? (this[SQa(b.id)] = this.rendererStamperObserver_.bind(this, a, b.id),
this.hasDataPath_[a] = !1) : Er(new Dn("Bad rendererstamper config",this.is + ":" + a))
}
},
*
*
*
*
*
*/
// <<<<< FOR MEMORY LEAKAGE >>>>
// ========= EXPLANTION FOR 0.2% @ step timing [min. 0.2%] ===========
/*
### Time Approach
// all below values can make the time interval > 250ms
// 250ms (practical value) refers to the minimum frequency for timeupdate in most browsers (typically, shorter timeupdate interval in modern browsers)
if (totalDuration > 400000) stepInterval = 0.2; // 400000ms with 0.2% increment => 800ms
else if (totalDuration > 200000) stepInterval = 0.5; // 200000ms with 0.5% increment => 1000ms
else if (totalDuration > 100000) stepInterval = 1; // 100000ms with 1% increment => 1000ms
else if (totalDuration > 50000) stepInterval = 2; // 50000ms with 2% increment => 1000ms
else if (totalDuration > 25000) stepInterval = 5; // 25000ms with 5% increment => 1250ms
### Pixel Check
// Target Max Pixel Increment < 5px for Short Period Ticker (Rapid Background Change)
// Assume total width <= 99px for short period ticker, like small donation & member welcome
99px * 5% = 4.95px < 5px [Condition Fulfilled]
### Example - totalDuration = 280000
totalDuration 280000
stepInterval 0.5
numOfSteps = Math.round(100 / stepInterval) = 200
time interval = 280000 / 200 = 1400ms <acceptable>
### Example - totalDuration = 18000
totalDuration 18000
stepInterval 5
numOfSteps = Math.round(100 / stepInterval) = 20
time interval = 18000 / 20 = 900ms <acceptable>
### Example - totalDuration = 5000
totalDuration 5000
stepInterval 5
numOfSteps = Math.round(100 / stepInterval) = 20
time interval = 5000 / 20 = 250ms <threshold value>
### Example - totalDuration = 3600
totalDuration 3600
stepInterval 5
numOfSteps = Math.round(100 / stepInterval) = 20
time interval = 3600 / 20 = 180ms <reasonable for 3600ms ticker>
*/
// =======================================================================================================
// AUTOMAICALLY DETERMINED
const ENABLE_FLAGS_MAINTAIN_STABLE_LIST = ENABLE_FLAGS_MAINTAIN_STABLE_LIST_VAL === 1;
const ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST = ENABLE_FLAGS_MAINTAIN_STABLE_LIST_VAL >= 1;
const CHAT_MENU_SCROLL_UNLOCKING = CHAT_MENU_REFIT_ALONG_SCROLLING >= 1;
let runTickerClassName = 'run-ticker';
const dummyImgURL = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
/*
WebP: data:image/webp;base64,UklGRjAB
PNG: data:image/png;base64,iVBORw0KGg==
JPEG: data:image/jpeg;base64,/9j/4AA=
GIF: data:image/gif;base64,R0lGODlhAQABAIA=
BMP: data:image/bmp;base64,Qk1oAAAA
SVG: data:image/svg+xml;base64,PHN2Zy8+Cg==
WebP: data:image/webp;base64,AAAAAAA=
PNG: data:image/png;base64,AAAAAAA=
JPEG: data:image/jpeg;base64,AAAAAAA=
GIF: data:image/gif;base64,AAAAAAA=
BMP: data:image/bmp;base64,AAAAAAA=
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
*/
// image sizing code
// (d = (d = KC(a.customThumbnail.thumbnails, 16)) ? lc(oc(d)) : null)
// function KC(a, b, c, d) {
// d = void 0 === d ? "width" : d;
// if (!a || !a.length)
// return null;
// if (z("kevlar_tuner_should_always_use_device_pixel_ratio")) {
// var e = window.devicePixelRatio;
// z("kevlar_tuner_should_clamp_device_pixel_ratio") ? e = Math.min(e, zl("kevlar_tuner_clamp_device_pixel_ratio")) : z("kevlar_tuner_should_use_thumbnail_factor") && (e = zl("kevlar_tuner_thumbnail_factor"));
// HC = e
// } else
// HC || (HC = window.devicePixelRatio);
// e = HC;
// z("kevlar_tuner_should_always_use_device_pixel_ratio") ? b *= e : 1 < e && (b *= e);
// if (z("kevlar_tuner_min_thumbnail_quality"))
// return a[0].url || null;
// e = a.length;
// if (z("kevlar_tuner_max_thumbnail_quality"))
// return a[e - 1].url || null;
// if (c)
// for (var h = 0; h < e; h++)
// if (0 <= a[h].url.indexOf(c))
// return a[h].url || null;
// for (c = 0; c < e; c++)
// if (a[c][d] >= b)
// return a[c].url || null;
// for (b = e - 1; 0 < b; b--)
// if (a[b][d])
// return a[b].url || null;
// return a[0].url || null
// }
const { IntersectionObserver } = __CONTEXT__;
let _x69;
try {
_x69 = document.createAttributeNS("http://www.w3.org/2000/svg", "nil").addEventListener;
} catch (e) { }
const pureAddEventListener = _x69;
if (!pureAddEventListener) return console.warn("pureAddEventListener cannot be obtained.");
/** @type {globalThis.PromiseConstructor} */
const Promise = (async () => { })().constructor; // YouTube hacks Promise in WaterFox Classic and "Promise.resolve(0)" nevers resolve.
// let jsonParseFix = null;
if (!IntersectionObserver) return console.warn("Your browser does not support IntersectionObserver.\nPlease upgrade to the latest version.");
if (typeof WebAssembly !== 'object') return console.warn("Your browser is too old.\nPlease upgrade to the latest version."); // for passive and once
// 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;
}
` : '';
const ENABLE_FONT_PRE_RENDERING = typeof HTMLElement.prototype.append === 'function' ? (ENABLE_FONT_PRE_RENDERING_PREFERRED || 0) : 0;
const cssText8_fonts_pre_render = ENABLE_FONT_PRE_RENDERING ? `
elzm-fonts {
visibility: collapse;
position: fixed;
top: -10px;
left: -10px;
font-size: 10pt;
line-height: 100%;
width: 100px;
height: 100px;
transform: scale(0.1);
transform: scale(0.01);
transform: scale(0.001);
transform-origin: 0 0;
contain: strict;
display: block;
pointer-events: none !important;
user-select: none !important;
}
elzm-fonts[id]#elzm-fonts-yk75g {
user-select: none !important;
pointer-events: none !important;
}
elzm-font {
visibility: collapse;
position: absolute;
line-height: 100%;
width: 100px;
height: 100px;
contain: strict;
display: block;
user-select: none !important;
pointer-events: none !important;
}
elzm-font::before {
visibility: collapse;
position: absolute;
line-height: 100%;
width: 100px;
height: 100px;
contain: strict;
display: block;
content: '0aZ!@#$~^&*()_-+[]{}|;:><?\\0460\\0301\\0900\\1F00\\0370\\0102\\0100\\28EB2\\28189\\26DA0\\25A9C\\249BB\\23F61\\22E8B\\21927\\21076\\2048E\\1F6F5\\FF37\\F94F\\F0B2\\9F27\\9D9A\\9BEA\\9A6B\\98EC\\9798\\9602\\949D\\9370\\926B\\913A\\8FA9\\8E39\\8CC1\\8B26\\8983\\8804\\8696\\8511\\83BC\\828D\\8115\\7F9A\\7E5B\\7D07\\7B91\\7A2C\\78D2\\776C\\7601\\74AA\\73B9\\7265\\70FE\\6FBC\\6E88\\6D64\\6C3F\\6A9C\\6957\\67FE\\66B3\\6535\\63F2\\628E\\612F\\5FE7\\5E6C\\5CEE\\5B6D\\5A33\\58BC\\575B\\5611\\54BF\\536E\\51D0\\505D\\4F22\\4AD1\\41DB\\3B95\\3572\\2F3F\\26FD\\25A1\\2477\\208D\\1D0A\\1FB\\A1\\A3\\B4\\2CB\\60\\10C\\E22\\A5\\4E08\\B0\\627\\2500\\5E\\201C\\3C\\B7\\23\\26\\3E\\D\\20\\25EE8\\1F235\\FFD7\\FA10\\F92D\\9E8B\\9C3E\\9AE5\\98EB\\971D\\944A\\92BC\\9143\\8F52\\8DC0\\8B2D\\8973\\87E2\\8655\\84B4\\82E8\\814A\\7F77\\7D57\\7BC8\\7A17\\7851\\768C\\7511\\736C\\7166\\6F58\\6D7C\\6B85\\69DD\\6855\\667E\\64D2\\62CF\\6117\\5F6C\\5D9B\\5BBC\\598B\\57B3\\5616\\543F\\528D\\50DD\\4F57\\4093\\3395\\32B5\\31C8\\3028\\2F14\\25E4\\24D1\\2105\\2227\\A8\\2D9\\2CA\\2467\\B1\\2020\\2466\\251C\\266B\\AF\\4E91\\221E\\2464\\2266\\2207\\4E32\\25B3\\2463\\2010\\2103\\3014\\25C7\\24\\25BD\\4E18\\2460\\21D2\\2015\\2193\\4E03\\7E\\25CB\\2191\\25BC\\3D\\500D\\4E01\\25\\30F6\\2605\\266A\\40\\2B\\4E16\\7C\\A9\\4E\\21\\1F1E9\\FEE3\\F0A7\\9F3D\\9DFA\\9C3B\\9A5F\\98C8\\972A\\95B9\\94E7\\9410\\92B7\\914C\\8FE2\\8E2D\\8CAF\\8B5E\\8A02\\8869\\86E4\\8532\\83B4\\82A9\\814D\\7FFA\\7ED7\\7DC4\\7CCC\\7BC3\\7ACA\\797C\\783E\\770F\\760A\\74EF\\73E7\\72DD\\719C\\7005\\6ED8\\6DC3\\6CB2\\6A01\\68E1\\6792\\663A\\64F8\\63BC\\623B\\60FA\\5FD1\\5EA3\\5D32\\5BF5\\5AB2\\5981\\5831\\570A\\5605\\5519\\53FB\\52A2\\5110\\4FE3\\4EB8\\3127\\279C\\2650\\254B\\23E9\\207B\\1D34\\2AE\\176\\221A\\161\\200B\\300C\\4E4C\\1F921\\FF78\\FA0A\\F78A\\9EB9\\9D34\\9BD3\\9A6F\\9912\\97C6\\964E\\950C\\93E4\\92E5\\91F0\\90BB\\8F68\\8E18\\8B6C\\89F6\\889B\\874C\\8602\\84B1\\8378\\826E\\8113\\7FB1\\7EAF\\7D89\\7C20\\7AFB\\7988\\7840\\7705\\75CC\\749A\\73B3\\727F\\7113\\6FE8\\6ED6\\6DD3\\6CDA\\6BBB\\6A31\\6900\\67D9\\66A7\\655D\\6427\\630D\\61C6\\60AC\\5F78\\5E34\\5CE0\\5B80\\5A51\\590B\\57A1\\566F\\5551\\543D\\52DB\\518F\\5032\\3A17\\305C\\2749\\264A\\2567\\2476\\2139\\1EC0\\11AF\\2C8\\1AF\\E17\\2190\\2022\\2502\\2312\\2025\\50';
user-select: none !important;
pointer-events: none !important;
}
`: '';
const cssText9_no_backdrop_filter_when_menu_shown = NO_BACKDROP_FILTER_WHEN_MENU_SHOWN ? `
tp-yt-iron-dropdown.yt-live-chat-app ytd-menu-popup-renderer {
-webkit-backdrop-filter: none;
backdrop-filter: none;
}
`: '';
const cssText10_show_more_blinker = ENABLE_SHOW_MORE_BLINKER ? `
@keyframes blinker-miuzp {
0%, 60%, 100% {
opacity: 1;
}
30% {
opacity: 0.6;
}
}
yt-icon-button#show-more.has-new-messages-miuzp {
animation: blinker-miuzp 1.74s linear infinite;
}
`: '';
const cssText11_entire_message_clickable = FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK ? `
yt-live-chat-paid-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
pointer-events: none !important;
}
yt-live-chat-membership-item-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
pointer-events: none !important;
}
yt-live-chat-paid-sticker-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
pointer-events: none !important;
}
yt-live-chat-text-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
pointer-events: none !important; /* TO_BE_REVIEWED */
}
yt-live-chat-auto-mod-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
pointer-events: none !important;
}
`: '';
const cssText12_nowrap_tooltip = MAX_TOOLTIP_NO_WRAP_WIDTH && typeof MAX_TOOLTIP_NO_WRAP_WIDTH === 'string' ? `
tp-yt-paper-tooltip[role="tooltip"] {
box-sizing: content-box !important;
margin: 0px !important;
padding: 0px !important;
contain: none !important;
}
tp-yt-paper-tooltip[role="tooltip"] #tooltip[style-target="tooltip"] {
box-sizing: content-box !important;
display: inline-block;
contain: none !important;
}
tp-yt-paper-tooltip[role="tooltip"] #tooltip[style-target="tooltip"]{
max-width: ${MAX_TOOLTIP_NO_WRAP_WIDTH};
width: max-content;
text-overflow: ellipsis;
overflow: hidden;
white-space: nowrap;
}
`: '';
const cssText13_no_text_select_when_menu_visible = `
[menu-visible] {
--sfc47-text-select: none;
}
[menu-visible] #header[id][class],
[menu-visible] #content[id][class],
[menu-visible] #header[id][class] *,
[menu-visible] #content[id][class] * {
user-select: var(--sfc47-text-select) !important;
}
[menu-visible] #menu {
--sfc47-text-select: inherit;
}
`;
const cssText14_NO_FILTER_DROPDOWN_BORDER = NO_FILTER_DROPDOWN_BORDER ? `
yt-live-chat-header-renderer.yt-live-chat-renderer #label.yt-dropdown-menu::before {
border:0;
}
` : '';
const cssText15_FIX_ANIMATION_TICKER_TEXT_POSITION = FIX_ANIMATION_TICKER_TEXT_POSITION ? `
.style-scope.yt-live-chat-ticker-renderer #animation-container[id][class] {
position: relative;
display: grid;
grid-auto-columns: 1fr;
grid-auto-rows: 1fr;
grid-template-columns: repeat(1, 1fr);
gap: 7px;
padding-bottom: 0;
margin-bottom: 0;
padding-top: 0;
align-self: flex-start;
flex-wrap: nowrap;
margin-top: 1px;
}
.style-scope.yt-live-chat-ticker-renderer #animation-container > [id][class] {
margin-top: 0px;
margin-bottom: 0px;
flex-direction: row;
flex-wrap: nowrap;
align-items: center;
justify-content: flex-start;
}
.style-scope.yt-live-chat-ticker-renderer #animation-container > [id][class]:first-child::after {
content: '補';
visibility: collapse;
display: inline-block;
position: relative;
width: 0;
line-height: 22px;
}
` : '';
const cssText16_FIX_AUTHOR_CHIP_BADGE_POSITION = FIX_AUTHOR_CHIP_BADGE_POSITION ? `
#card #author-name-chip > yt-live-chat-author-chip[single-line] {
flex-wrap: nowrap;
white-space: nowrap;
display: inline-flex;
flex-direction: row;
text-wrap: nowrap;
flex-shrink: 0;
align-items: center;
}
#card #author-name-chip {
display: inline-flex;
flex-direction: row;
align-items: flex-start;
}
`: '';
// Example: https://www.youtube.com/watch?v=Xfytz-igsuc
const cssText17_FIX_overwidth_banner_message = `
yt-live-chat-banner-manager#live-chat-banner.style-scope.yt-live-chat-item-list-renderer {
max-width: 100%;
box-sizing: border-box;
}
`;
const cssText18_REACTION_ANIMATION_PANEL_CSS_FIX = REACTION_ANIMATION_PANEL_CSS_FIX ? `
#reaction-control-panel-overlay[class] {
contain: strict;
margin: 0;
padding: 0;
border: 0;
box-sizing: border-box;
will-change: initial;
}
#reaction-control-panel-overlay[class] *[class] {
will-change: initial;
}
`: ''
const addCss = () => `
@property --ticker-rtime {
syntax: "<percentage>";
inherits: false;
initial-value: 0%;
}
/*
.run-ticker {
background:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2));
}
.run-ticker-test {
background: #00000001;
}
.run-ticker-forced,
yt-live-chat-ticker-renderer #items > * > #container.run-ticker-forced,
yt-live-chat-ticker-renderer[class] #items[class] > *[class] > #container.run-ticker-forced[class]
{
background:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2)) !important;
}
*/
.run-ticker {
--ticker-bg:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2));
}
.run-ticker,
yt-live-chat-ticker-renderer #items > * > #container.run-ticker,
yt-live-chat-ticker-renderer[class] #items[class] > *[class] > #container.run-ticker[class]
{
background: var(--ticker-bg) !important;
}
yt-live-chat-ticker-dummy777-item-renderer {
background: #00000001;
}
yt-live-chat-ticker-dummy777-item-renderer[dummy777] {
position: fixed !important;
top: -1000px !important;
left: -1000px !important;
font-size: 1px !important;
color: transparent !important;
pointer-events: none !important;
z-index: -1 !important;
contain: strict !important;
box-sizing: border-box !important;
pointer-events: none !important;
user-select: none !important;
max-width: 1px !important;
max-height: 1px !important;
overflow: hidden !important;
visibility: collapse !important;
display: none !important;
}
yt-live-chat-ticker-dummy777-item-renderer #container {
background: inherit;
}
${cssText8_fonts_pre_render}
${cssText9_no_backdrop_filter_when_menu_shown}
@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;
}
}
.dont-render[class] {
/* visibility: collapse !important; */
/* visibility: collapse will make innerText become "" which conflicts with BetterStreamChat; see https://greasyfork.org/scripts/469878/discussions/197267 */
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;