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YouTube 超快聊天

YouTube直播聊天的终极性能提升

当前为 2024-05-12 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name                YouTube Super Fast Chat
  3. // @version             0.61.24
  4. // @license             MIT
  5. // @name:ja             YouTube スーパーファーストチャット
  6. // @name:zh-TW          YouTube 超快聊天
  7. // @name:zh-CN          YouTube 超快聊天
  8. // @icon                https://raw.githubusercontent.com/cyfung1031/userscript-supports/main/icons/super-fast-chat.png
  9. // @namespace           UserScript
  10. // @match               https://www.youtube.com/live_chat*
  11. // @match               https://www.youtube.com/live_chat_replay*
  12. // @author              CY Fung
  13. // @run-at              document-start
  14. // @grant               none
  15. // @unwrap
  16. // @allFrames           true
  17. // @inject-into         page
  18. // @require             https://update.greasyfork.org/scripts/475632/1361351/ytConfigHacks.js
  19. //
  20. // @compatible          firefox Violentmonkey
  21. // @compatible          firefox Tampermonkey
  22. // @compatible          firefox FireMonkey
  23. // @compatible          chrome Violentmonkey
  24. // @compatible          chrome Tampermonkey
  25. // @compatible          opera Violentmonkey
  26. // @compatible          opera Tampermonkey
  27. // @compatible          safari Stay
  28. // @compatible          edge Violentmonkey
  29. // @compatible          edge Tampermonkey
  30. // @compatible          brave Violentmonkey
  31. // @compatible          brave Tampermonkey
  32. //
  33. // @description         Ultimate Performance Boost for YouTube Live Chats
  34. // @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
  35. // @description:zh-TW   YouTube直播聊天的終極性能提升
  36. // @description:zh-CN   YouTube直播聊天的终极性能提升
  37. //
  38. // ==/UserScript==
  39.  
  40. ((__CONTEXT__) => {
  41.   'use strict';
  42.  
  43.   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
  44.   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.
  45.   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
  46.  
  47.   const ENABLE_NO_SMOOTH_TRANSFORM = true;                // Depends on whether you want the animation effect for new chat messages
  48.   const USE_OPTIMIZED_ON_SCROLL_ITEMS = true;             // TRUE for the majority
  49.   const USE_WILL_CHANGE_CONTROLLER = false;               // FALSE for the majority
  50.   const ENABLE_DELAYED_CHAT_OCCURRENCE_PREFERRED = false;  // In Chrome, the rendering of new chat messages could be too fast for no smooth transform. 80ms delay of displaying new messages should be sufficient for element rendering.
  51.   const ENABLE_OVERFLOW_ANCHOR_PREFERRED = true;          // Enable `overflow-anchor: auto` to lock the scroll list at the bottom for no smooth transform.
  52.  
  53.   const FIX_SHOW_MORE_BUTTON_LOCATION = true;             // When there are voting options (bottom panel), move the "show more" button to the top.
  54.   const FIX_INPUT_PANEL_OVERFLOW_ISSUE = true;            // When the super chat button is flicking with color, the scrollbar might come out.
  55.   const FIX_INPUT_PANEL_BORDER_ISSUE = true;              // No border should be allowed if there is an empty input panel.
  56.   const SET_CONTAIN_FOR_CHATROOM = true;                  // Rendering hacks (`contain`) for chatroom elements. [ General ]
  57.  
  58.   const FORCE_CONTENT_VISIBILITY_UNSET = true;            // Content-visibility should be always VISIBLE for high performance and great rendering.
  59.   const FORCE_WILL_CHANGE_UNSET = true;                   // Will-change should be always UNSET (auto) for high performance and low energy impact.
  60.  
  61.   // Replace requestAnimationFrame timers with custom implementation
  62.   const ENABLE_RAF_HACK_TICKERS = true;           // When there is a ticker
  63.   const ENABLE_RAF_HACK_DOCKED_MESSAGE = true;    // To be confirmed
  64.   const ENABLE_RAF_HACK_INPUT_RENDERER = true;    // To be confirmed
  65.   const ENABLE_RAF_HACK_EMOJI_PICKER = true;      // When changing the page of the emoji picker
  66.  
  67.   // Force rendering all the character subsets of the designated font(s) before messages come (Pre-Rendering of Text)
  68.   const ENABLE_FONT_PRE_RENDERING_PREFERRED = 1 | 2 | 4 | 8 | 16;
  69.  
  70.   // Backdrop `filter: blur(4px)` inside the iframe can extend to the whole page, causing a negative visual impact on the video you are watching.
  71.   const NO_BACKDROP_FILTER_WHEN_MENU_SHOWN = true;
  72.  
  73.   // Data Manipulation for Participants (Participant List)
  74.   // << if DO_PARTICIPANT_LIST_HACKS >>
  75.   const DO_PARTICIPANT_LIST_HACKS = true;                     // TRUE for the majority
  76.   const SHOW_PARTICIPANT_CHANGES_IN_CONSOLE = false;          // Just too annoying to show them all in popular chat
  77.   const CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT = true;  // Only consider changes in renderable content (not concerned with the last chat message of the participants)
  78.   const PARTICIPANT_UPDATE_ONLY_ONLY_IF_MODIFICATION_DETECTED = true;
  79.   // << end >>
  80.  
  81.   // show more button
  82.   const ENABLE_SHOW_MORE_BLINKER = true;                      // BLINK WHEN NEW MESSAGES COME
  83.  
  84.   // faster stampDomArray_ for participants list creation
  85.   const ENABLE_FLAGS_MAINTAIN_STABLE_LIST_VAL = 1;            // 0 - OFF; 1 - ON; 2 - ON(PARTICIPANTS_LIST ONLY)
  86.   const USE_MAINTAIN_STABLE_LIST_ONLY_WHEN_KS_FLAG_IS_SET = false;
  87.  
  88.   // reuse yt components
  89.   const ENABLE_FLAGS_REUSE_COMPONENTS = true;
  90.  
  91.   // ShadyDom Free is buggy
  92.   const DISABLE_FLAGS_SHADYDOM_FREE = true;
  93.  
  94.   // images <Group#I01>
  95.   const AUTHOR_PHOTO_SINGLE_THUMBNAIL = 1;  // 0 - disable; 1- smallest; 2- largest
  96.   const EMOJI_IMAGE_SINGLE_THUMBNAIL = 1;   // 0 - disable; 1- smallest; 2- largest
  97.   const LEAST_IMAGE_SIZE = 48;              // minium size = 48px
  98.  
  99.   const DO_LINK_PREFETCH = true;                      // DO NOT CHANGE
  100.   // << if DO_LINK_PREFETCH >>
  101.   const ENABLE_BASE_PREFETCHING = true;               // (SUB-)DOMAIN | dns-prefetch & preconnect
  102.   const ENABLE_PRELOAD_THUMBNAIL = true;              // subresource (prefetch) [LINK for Images]
  103.   const SKIP_PRELOAD_EMOJI = true;
  104.   const PREFETCH_LIMITED_SIZE_EMOJI = 512;            // DO NOT CHANGE THIS
  105.   const PREFETCH_LIMITED_SIZE_AUTHOR_PHOTO = 68;      // DO NOT CHANGE THIS
  106.   // << end >>
  107.  
  108.   const FIX_SETSRC_AND_THUMBNAILCHANGE_ = true;       // Function Replacement for yt-img-shadow....
  109.   const FIX_THUMBNAIL_DATACHANGED = true;             // Function Replacement for yt-live-chat-author-badge-renderer..dataChanged
  110.   // const REMOVE_PRELOADAVATARFORADDACTION = false;      // Function Replacement for yt-live-chat-renderer..preloadAvatarForAddAction
  111.  
  112.   const FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION = true;     // important [depends on <Group#I01>]
  113.   const FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT = true;  // [depends on <Group#I01>]
  114.  
  115.   const ATTEMPT_ANIMATED_TICKER_BACKGROUND = 'steps'   // false OR '' for disabled, 'linear', 'steps' for easing-function
  116.   // << if ATTEMPT_ANIMATED_TICKER_BACKGROUND >>
  117.   // BROWSER SUPPORT: Chrome 75+, Edge 79+, Safari 13.1+, Firefox 63+, Opera 62+
  118.   const TICKER_MAX_STEPS_LIMIT = 500;                       //  NOT LESS THAN 5 STEPS!!
  119.   // [limiting 500 max steps] is recommended for "confortable visual change"
  120.   //      min. step increment 0.2% => max steps: 500 =>  800ms per each update
  121.   //      min. step increment 0.5% => max steps: 200 => 1000ms per each update
  122.   //      min. step increment 1.0% => max steps: 100 => 1000ms per each update
  123.   //      min. step increment 2.5% => max steps:  40 => 1000ms per each update
  124.   //      min. step increment 5.0% => max steps:  20 => 1250ms per each update
  125.   const ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX = true;    // for video playback's ticker issue. [ Playback Replay - Pause at Middle - Backwards Seeking ]
  126.   // << end >>
  127.  
  128.   const FIX_TOOLTIP_DISPLAY = true;                       // changed in 2024.05.02
  129.   const USE_VANILLA_DEREF = true;
  130.   const FIX_DROPDOWN_DERAF = true;                        // DONT CHANGE
  131.  
  132.  
  133.   const CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN = true;                // cache the menu data and used for the next reopen
  134.   const ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU = true;   // pause auto scroll faster when the context menu is about to show
  135.   const ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU = true;                // avoid multiple requests on the same time
  136.  
  137.   const BOOST_MENU_OPENCHANGED_RENDERING = true;
  138.   const FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK = true;  // click again = close
  139.   const NO_ITEM_TAP_FOR_NON_STATIONARY_TAP = true;                // dont open the menu (e.g. text message) if cursor is moved or long press
  140.   const TAP_ACTION_DURATION = 280;                                // exceeding 280ms would not consider as a tap action
  141.   const PREREQUEST_CONTEXT_MENU_ON_MOUSE_DOWN = true;             // require CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN = true
  142.   // const FIX_MENU_CAPTURE_SCROLL = true;
  143.   const CHAT_MENU_REFIT_ALONG_SCROLLING = 0;                      // 0 for locking / default; 1 for unlocking only; 2 for unlocking and refit
  144.  
  145.   const RAF_FIX_keepScrollClamped = true;
  146.   const RAF_FIX_scrollIncrementally = 2;                          // 0: no action; 1: basic fix; 2: also fix scroll position
  147.  
  148.   // << if BOOST_MENU_OPENCHANGED_RENDERING >>
  149.   const FIX_MENU_POSITION_N_SIZING_ON_SHOWN = 1;       // correct size and position when the menu dropdown opens
  150.  
  151.   const CHECK_JSONPRUNE = true;                        // This is a bug in Brave
  152.   // << end >>
  153.  
  154.   // const LIVE_CHAT_FLUSH_ON_FOREGROUND_ONLY = false;
  155.  
  156.   const CHANGE_DATA_FLUSH_ASYNC = false;
  157.   // CHANGE_DATA_FLUSH_ASYNC is disabled due to bug report: https://greasyfork.org/scripts/469878-youtube-super-fast-chat/discussions/199479
  158.   // to be further investigated
  159.  
  160.   const CHANGE_MANAGER_UNSUBSCRIBE = true;
  161.  
  162.   const INTERACTIVITY_BACKGROUND_ANIMATION = 1;         // mostly for pinned message
  163.   // 0 = default Yt animation background [= no fix];
  164.   // 1 = disable default animation background [= keep special animation];
  165.   // 2 = disable all animation backgrounds [= no animation backbround]
  166.  
  167.   const CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED = true;
  168.  
  169.   const MAX_TOOLTIP_NO_WRAP_WIDTH = '72vw'; // '' for disable; accept values like '60px', '25vw'
  170.  
  171.   const AMEND_TICKER_handleLiveChatAction = true; // to fix ticker duplication and unresponsively fast ticker generation
  172.  
  173.   const ATTEMPT_TICKER_ANIMATION_START_TIME_DETECTION = true;
  174.   const ADJUST_TICKER_DURATION_ALIGN_RENDER_TIME = true;
  175.   const FIX_BATCH_TICKER_ORDER = true;
  176.  
  177.   const DISABLE_Translation_By_Google = true;
  178.  
  179.   const FASTER_ICON_RENDERING = true;
  180.  
  181.   const DELAY_FOCUSEDCHANGED = true;
  182.  
  183.   const skipErrorForhandleAddChatItemAction_ = true; // currently depends on ENABLE_NO_SMOOTH_TRANSFORM
  184.   const fixChildrenIssue801 = true; // if __children801__ is set [fix polymer controller method extration for `.set()`]
  185.  
  186.   const SUPPRESS_refreshOffsetContainerHeight_ = true; // added in FEB 2024; true for default layout options
  187.  
  188.   const NO_FILTER_DROPDOWN_BORDER = true; // added in 2024.03.02
  189.  
  190.   const FIX_ANIMATION_TICKER_TEXT_POSITION = true; // CSS fix; experimental; added in 2024.04.07
  191.   const FIX_AUTHOR_CHIP_BADGE_POSITION = true;
  192.  
  193.   const FIX_ToggleRenderPolymerControllerExtractionBug = false; // to be reviewed
  194.  
  195.   // ========= EXPLANTION FOR 0.2% @ step timing [min. 0.2%] ===========
  196.   /*
  197.  
  198.     ### Time Approach
  199.  
  200.     // all below values can make the time interval > 250ms
  201.     // 250ms (practical value) refers to the minimum frequency for timeupdate in most browsers (typically, shorter timeupdate interval in modern browsers)
  202.     if (totalDuration > 400000) stepInterval = 0.2;  // 400000ms with 0.2% increment => 800ms
  203.     else if (totalDuration > 200000) stepInterval = 0.5; // 200000ms with 0.5% increment => 1000ms
  204.     else if (totalDuration > 100000) stepInterval = 1; // 100000ms with 1% increment => 1000ms
  205.     else if (totalDuration > 50000) stepInterval = 2; // 50000ms with 2% increment => 1000ms
  206.     else if (totalDuration > 25000) stepInterval = 5; // 25000ms with 5% increment => 1250ms
  207.  
  208.     ### Pixel Check
  209.     // Target Max Pixel Increment < 5px for Short Period Ticker (Rapid Background Change)
  210.     // Assume total width <= 99px for short period ticker, like small donation & member welcome
  211.     99px * 5% = 4.95px < 5px [Condition Fulfilled]
  212.  
  213.     ### Example - totalDuration = 280000
  214.     totalDuration 280000
  215.     stepInterval 0.5
  216.     numOfSteps = Math.round(100 / stepInterval) = 200
  217.     time interval = 280000 / 200 = 1400ms <acceptable>
  218.  
  219.     ### Example - totalDuration = 18000
  220.     totalDuration 18000
  221.     stepInterval 5
  222.     numOfSteps = Math.round(100 / stepInterval) = 20
  223.     time interval = 18000 / 20 = 900ms <acceptable>
  224.  
  225.     ### Example - totalDuration = 5000
  226.     totalDuration 5000
  227.     stepInterval 5
  228.     numOfSteps = Math.round(100 / stepInterval) = 20
  229.     time interval = 5000 / 20 = 250ms <threshold value>
  230.  
  231.     ### Example - totalDuration = 3600
  232.     totalDuration 3600
  233.     stepInterval 5
  234.     numOfSteps = Math.round(100 / stepInterval) = 20
  235.     time interval = 3600 / 20 = 180ms <reasonable for 3600ms ticker>
  236.  
  237.   */
  238.  
  239.   // =======================================================================================================
  240.  
  241.   // AUTOMAICALLY DETERMINED
  242.   const ENABLE_FLAGS_MAINTAIN_STABLE_LIST = ENABLE_FLAGS_MAINTAIN_STABLE_LIST_VAL === 1;
  243.   const ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST = ENABLE_FLAGS_MAINTAIN_STABLE_LIST_VAL >= 1;
  244.   const CHAT_MENU_SCROLL_UNLOCKING = CHAT_MENU_REFIT_ALONG_SCROLLING >= 1;
  245.   let runTickerClassName = 'run-ticker';
  246.  
  247.   const dummyImgURL = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
  248.   /*
  249.     WebP: data:image/webp;base64,UklGRjAB
  250.     PNG: data:image/png;base64,iVBORw0KGg==
  251.     JPEG: data:image/jpeg;base64,/9j/4AA=
  252.     GIF: data:image/gif;base64,R0lGODlhAQABAIA=
  253.     BMP: data:image/bmp;base64,Qk1oAAAA
  254.     SVG: data:image/svg+xml;base64,PHN2Zy8+Cg==
  255.  
  256.     WebP: data:image/webp;base64,AAAAAAA=
  257.     PNG:  data:image/png;base64,AAAAAAA=
  258.     JPEG: data:image/jpeg;base64,AAAAAAA=
  259.     GIF:  data:image/gif;base64,AAAAAAA=
  260.     BMP:  data:image/bmp;base64,AAAAAAA=
  261.  
  262.     data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
  263.  
  264.  
  265.   */
  266.  
  267.   // image sizing code
  268.   // (d = (d = KC(a.customThumbnail.thumbnails, 16)) ? lc(oc(d)) : null)
  269.  
  270.  
  271.   //   function KC(a, b, c, d) {
  272.   //     d = void 0 === d ? "width" : d;
  273.   //     if (!a || !a.length)
  274.   //         return null;
  275.   //     if (z("kevlar_tuner_should_always_use_device_pixel_ratio")) {
  276.   //         var e = window.devicePixelRatio;
  277.   //         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"));
  278.   //         HC = e
  279.   //     } else
  280.   //         HC || (HC = window.devicePixelRatio);
  281.   //     e = HC;
  282.   //     z("kevlar_tuner_should_always_use_device_pixel_ratio") ? b *= e : 1 < e && (b *= e);
  283.   //     if (z("kevlar_tuner_min_thumbnail_quality"))
  284.   //         return a[0].url || null;
  285.   //     e = a.length;
  286.   //     if (z("kevlar_tuner_max_thumbnail_quality"))
  287.   //         return a[e - 1].url || null;
  288.   //     if (c)
  289.   //         for (var h = 0; h < e; h++)
  290.   //             if (0 <= a[h].url.indexOf(c))
  291.   //                 return a[h].url || null;
  292.   //     for (c = 0; c < e; c++)
  293.   //         if (a[c][d] >= b)
  294.   //             return a[c].url || null;
  295.   //     for (b = e - 1; 0 < b; b--)
  296.   //         if (a[b][d])
  297.   //             return a[b].url || null;
  298.   //     return a[0].url || null
  299.   // }
  300.  
  301.   const { IntersectionObserver } = __CONTEXT__;
  302.   let _x69;
  303.   try {
  304.     _x69 = document.createAttributeNS("http://www.w3.org/2000/svg", "nil").addEventListener;
  305.   } catch (e) { }
  306.   const pureAddEventListener = _x69;
  307.   if (!pureAddEventListener) return console.warn("pureAddEventListener cannot be obtained.");
  308.  
  309.   /** @type {globalThis.PromiseConstructor} */
  310.   const Promise = (async () => { })().constructor; // YouTube hacks Promise in WaterFox Classic and "Promise.resolve(0)" nevers resolve.
  311.  
  312.   // let jsonParseFix = null;
  313.  
  314.   if (!IntersectionObserver) return console.warn("Your browser does not support IntersectionObserver.\nPlease upgrade to the latest version.");
  315.   if (typeof WebAssembly !== 'object') return console.warn("Your browser is too old.\nPlease upgrade to the latest version."); // for passive and once
  316.  
  317.   // necessity of cssText3_smooth_transform_position to be checked.
  318.   const cssText3_smooth_transform_position = ENABLE_NO_SMOOTH_TRANSFORM ? `
  319.  
  320.     #item-offset.style-scope.yt-live-chat-item-list-renderer > #items.style-scope.yt-live-chat-item-list-renderer {
  321.         position: static !important;
  322.     }
  323.  
  324.   `: '';
  325.  
  326.   // fallback if dummy style fn fails
  327.   const cssText4_smooth_transform_forced_props = ENABLE_NO_SMOOTH_TRANSFORM ? `
  328.  
  329.     /* optional */
  330.     #item-offset.style-scope.yt-live-chat-item-list-renderer {
  331.         height: auto !important;
  332.         min-height: unset !important;
  333.     }
  334.  
  335.     #items.style-scope.yt-live-chat-item-list-renderer {
  336.         transform: translateY(0px) !important;
  337.     }
  338.  
  339.     /* optional */
  340.  
  341.   `: '';
  342.  
  343.   const cssText5 = SET_CONTAIN_FOR_CHATROOM ? `
  344.  
  345.     /* ------------------------------------------------------------------------------------------------------------- */
  346.  
  347.     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 {
  348.         contain: layout style;
  349.     }
  350.  
  351.     #items.style-scope.yt-live-chat-item-list-renderer {
  352.         contain: layout paint style;
  353.     }
  354.  
  355.     #item-offset.style-scope.yt-live-chat-item-list-renderer {
  356.         contain: style;
  357.     }
  358.  
  359.     #item-scroller.style-scope.yt-live-chat-item-list-renderer {
  360.         contain: size style;
  361.     }
  362.  
  363.     #contents.style-scope.yt-live-chat-item-list-renderer, #chat.style-scope.yt-live-chat-renderer, img.style-scope.yt-img-shadow[width][height] {
  364.         contain: size layout paint style;
  365.     }
  366.  
  367.     .style-scope.yt-live-chat-ticker-renderer[role="button"][aria-label], .style-scope.yt-live-chat-ticker-renderer[role="button"][aria-label] > #container {
  368.         contain: layout paint style;
  369.     }
  370.  
  371.     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 {
  372.         contain: layout style;
  373.     }
  374.  
  375.     tp-yt-paper-tooltip[style*="inset"][role="tooltip"] {
  376.         contain: layout paint style;
  377.     }
  378.  
  379.     /* ------------------------------------------------------------------------------------------------------------- */
  380.  
  381.   ` : '';
  382.  
  383.   const cssText6b_show_more_button = FIX_SHOW_MORE_BUTTON_LOCATION ? `
  384.  
  385.     yt-live-chat-renderer[has-action-panel-renderer] #show-more.yt-live-chat-item-list-renderer{
  386.         top: 4px;
  387.         transition-property: top;
  388.         bottom: unset;
  389.     }
  390.  
  391.     yt-live-chat-renderer[has-action-panel-renderer] #show-more.yt-live-chat-item-list-renderer[disabled]{
  392.         top: -42px;
  393.     }
  394.  
  395.   `: '';
  396.  
  397.   const cssText6c_input_panel_overflow = FIX_INPUT_PANEL_OVERFLOW_ISSUE ? `
  398.  
  399.     #input-panel #picker-buttons yt-live-chat-icon-toggle-button-renderer#product-picker {
  400.         contain: layout style;
  401.     }
  402.  
  403.     #chat.yt-live-chat-renderer ~ #panel-pages.yt-live-chat-renderer {
  404.         overflow: visible;
  405.     }
  406.  
  407.   `: '';
  408.  
  409.   const cssText6d_input_panel_border = FIX_INPUT_PANEL_BORDER_ISSUE ? `
  410.  
  411.     html #panel-pages.yt-live-chat-renderer > #input-panel.yt-live-chat-renderer:not(:empty) {
  412.         --yt-live-chat-action-panel-top-border: none;
  413.     }
  414.  
  415.     html #panel-pages.yt-live-chat-renderer > #input-panel.yt-live-chat-renderer.iron-selected > *:first-child {
  416.         border-top: 1px solid var(--yt-live-chat-panel-pages-border-color);
  417.     }
  418.  
  419.     html #panel-pages.yt-live-chat-renderer {
  420.         border-top: 0;
  421.         border-bottom: 0;
  422.     }
  423.  
  424.   `: '';
  425.  
  426.   const cssText7b_content_visibility_unset = FORCE_CONTENT_VISIBILITY_UNSET ? `
  427.  
  428.     img,
  429.     yt-img-shadow[height][width],
  430.     yt-img-shadow {
  431.         content-visibility: visible !important;
  432.     }
  433.  
  434.   `  : '';
  435.  
  436.   const cssText7c_will_change_unset = FORCE_WILL_CHANGE_UNSET ? `
  437.  
  438.     /* remove YouTube constant will-change */
  439.     /* constant value will slow down the performance; default auto */
  440.  
  441.     /* www-player.css */
  442.     html .ytp-contextmenu,
  443.     html .ytp-settings-menu {
  444.         will-change: unset;
  445.     }
  446.  
  447.     /* frequently matched elements */
  448.     html .fill.yt-interaction,
  449.     html .stroke.yt-interaction,
  450.     html .yt-spec-touch-feedback-shape__fill,
  451.     html .yt-spec-touch-feedback-shape__stroke {
  452.         will-change: unset;
  453.     }
  454.  
  455.     /* live_chat_polymer.js */
  456.     /*
  457.     html .toggle-button.tp-yt-paper-toggle-button,
  458.     html #primaryProgress.tp-yt-paper-progress,
  459.     html #secondaryProgress.tp-yt-paper-progress,
  460.     html #onRadio.tp-yt-paper-radio-button,
  461.     html .fill.yt-interaction,
  462.     html .stroke.yt-interaction,
  463.     html .yt-spec-touch-feedback-shape__fill,
  464.     html .yt-spec-touch-feedback-shape__stroke {
  465.         will-change: unset;
  466.     }
  467.     */
  468.  
  469.     /* desktop_polymer_enable_wil_icons.js */
  470.     /* html .fill.yt-interaction,
  471.     html .stroke.yt-interaction, */
  472.     html tp-yt-app-header::before,
  473.     html tp-yt-iron-list,
  474.     html #items.tp-yt-iron-list > *,
  475.     html #onRadio.tp-yt-paper-radio-button,
  476.     html .toggle-button.tp-yt-paper-toggle-button,
  477.     html ytd-thumbnail-overlay-toggle-button-renderer[use-expandable-tooltip] #label.ytd-thumbnail-overlay-toggle-button-renderer,
  478.     html #items.ytd-post-multi-image-renderer,
  479.     html #items.ytd-horizontal-card-list-renderer,
  480.     html #items.yt-horizontal-list-renderer,
  481.     html #left-arrow.yt-horizontal-list-renderer,
  482.     html #right-arrow.yt-horizontal-list-renderer,
  483.     html #items.ytd-video-description-infocards-section-renderer,
  484.     html #items.ytd-video-description-music-section-renderer,
  485.     html #chips.ytd-feed-filter-chip-bar-renderer,
  486.     html #chips.yt-chip-cloud-renderer,
  487.     html #items.ytd-merch-shelf-renderer,
  488.     html #items.ytd-product-details-image-carousel-renderer,
  489.     html ytd-video-preview,
  490.     html #player-container.ytd-video-preview,
  491.     html #primaryProgress.tp-yt-paper-progress,
  492.     html #secondaryProgress.tp-yt-paper-progress,
  493.     html ytd-miniplayer[enabled] /* ,
  494.     html .yt-spec-touch-feedback-shape__fill,
  495.     html .yt-spec-touch-feedback-shape__stroke */ {
  496.         will-change: unset;
  497.     }
  498.  
  499.     /* other */
  500.     .ytp-videowall-still-info-content[class],
  501.     .ytp-suggestion-image[class] {
  502.         will-change: unset !important;
  503.     }
  504.  
  505.   ` : '';
  506.  
  507.   const ENABLE_FONT_PRE_RENDERING = typeof HTMLElement.prototype.append === 'function' ? (ENABLE_FONT_PRE_RENDERING_PREFERRED || 0) : 0;
  508.   const cssText8_fonts_pre_render = ENABLE_FONT_PRE_RENDERING ? `
  509.  
  510.     elzm-fonts {
  511.         visibility: collapse;
  512.         position: fixed;
  513.         top: -10px;
  514.         left: -10px;
  515.         font-size: 10pt;
  516.         line-height: 100%;
  517.         width: 100px;
  518.         height: 100px;
  519.         transform: scale(0.1);
  520.         transform: scale(0.01);
  521.         transform: scale(0.001);
  522.         transform-origin: 0 0;
  523.         contain: strict;
  524.         display: block;
  525.  
  526.         pointer-events: none !important;
  527.         user-select: none !important;
  528.     }
  529.  
  530.     elzm-fonts[id]#elzm-fonts-yk75g {
  531.         user-select: none !important;
  532.         pointer-events: none !important;
  533.     }
  534.  
  535.     elzm-font {
  536.         visibility: collapse;
  537.         position: absolute;
  538.         line-height: 100%;
  539.         width: 100px;
  540.         height: 100px;
  541.         contain: strict;
  542.         display: block;
  543.  
  544.         user-select: none !important;
  545.         pointer-events: none !important;
  546.     }
  547.  
  548.     elzm-font::before {
  549.         visibility: collapse;
  550.         position: absolute;
  551.         line-height: 100%;
  552.         width: 100px;
  553.         height: 100px;
  554.         contain: strict;
  555.         display: block;
  556.  
  557.         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';
  558.  
  559.         user-select: none !important;
  560.         pointer-events: none !important;
  561.     }
  562.  
  563.   `: '';
  564.  
  565.   const cssText9_no_backdrop_filter_when_menu_shown = NO_BACKDROP_FILTER_WHEN_MENU_SHOWN ? `
  566.     tp-yt-iron-dropdown.yt-live-chat-app ytd-menu-popup-renderer  {
  567.         -webkit-backdrop-filter: none;
  568.         backdrop-filter: none;
  569.     }
  570.   `: '';
  571.  
  572.   const cssText10_show_more_blinker = ENABLE_SHOW_MORE_BLINKER ? `
  573.  
  574.     @keyframes blinker-miuzp {
  575.         0%, 60%, 100% {
  576.             opacity: 1;
  577.         }
  578.         30% {
  579.             opacity: 0.6;
  580.         }
  581.     }
  582.  
  583.     yt-icon-button#show-more.has-new-messages-miuzp {
  584.         animation: blinker-miuzp 1.74s linear infinite;
  585.     }
  586.  
  587.   `: '';
  588.  
  589.   const cssText11_entire_message_clickable = FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK ? `
  590.  
  591.     yt-live-chat-paid-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  592.       pointer-events: none !important;
  593.     }
  594.  
  595.     yt-live-chat-membership-item-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  596.       pointer-events: none !important;
  597.     }
  598.  
  599.     yt-live-chat-paid-sticker-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  600.       pointer-events: none !important;
  601.     }
  602.  
  603.     yt-live-chat-text-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  604.       pointer-events: none !important; /* TO_BE_REVIEWED */
  605.     }
  606.  
  607.     yt-live-chat-auto-mod-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  608.       pointer-events: none !important;
  609.     }
  610.  
  611.   `: '';
  612.  
  613.   const cssText12_nowrap_tooltip = MAX_TOOLTIP_NO_WRAP_WIDTH && typeof MAX_TOOLTIP_NO_WRAP_WIDTH === 'string' ? `
  614.  
  615.  
  616.     tp-yt-paper-tooltip[role="tooltip"] {
  617.       box-sizing: content-box !important;
  618.       margin: 0px !important;
  619.       padding: 0px !important;
  620.       contain: none !important;
  621.     }
  622.  
  623.     tp-yt-paper-tooltip[role="tooltip"] #tooltip[style-target="tooltip"] {
  624.       box-sizing: content-box !important;
  625.       display: inline-block;
  626.       contain: none !important;
  627.     }
  628.  
  629.  
  630.     tp-yt-paper-tooltip[role="tooltip"] #tooltip[style-target="tooltip"]{
  631.       max-width: ${MAX_TOOLTIP_NO_WRAP_WIDTH};
  632.       width: max-content;
  633.       text-overflow: ellipsis;
  634.       overflow: hidden;
  635.       white-space: nowrap;
  636.     }
  637.  
  638.  
  639.   `: '';
  640.  
  641.  
  642.   const cssText13_no_text_select_when_menu_visible = `
  643.     [menu-visible] {
  644.       --sfc47-text-select: none;
  645.     }
  646.     [menu-visible] #header[id][class],
  647.     [menu-visible] #content[id][class],
  648.     [menu-visible] #header[id][class] *,
  649.     [menu-visible] #content[id][class] * {
  650.       user-select: var(--sfc47-text-select) !important;
  651.     }
  652.     [menu-visible] #menu {
  653.       --sfc47-text-select: inherit;
  654.     }
  655.   `;
  656.  
  657.   const cssText14_NO_FILTER_DROPDOWN_BORDER = NO_FILTER_DROPDOWN_BORDER ? `
  658.   yt-live-chat-header-renderer.yt-live-chat-renderer #label.yt-dropdown-menu::before {
  659.     border:0;
  660.   }
  661.   ` : '';
  662.  
  663.   const cssText15_FIX_ANIMATION_TICKER_TEXT_POSITION = FIX_ANIMATION_TICKER_TEXT_POSITION ? `
  664.     .style-scope.yt-live-chat-ticker-renderer #animation-container[id][class] {
  665.       position: relative;
  666.       display: grid;
  667.       grid-auto-columns: 1fr;
  668.       grid-auto-rows: 1fr;
  669.       grid-template-columns: repeat(1, 1fr);
  670.       gap: 7px;
  671.       padding-bottom: 0;
  672.       margin-bottom: 0;
  673.       padding-top: 0;
  674.       align-self: flex-start;
  675.       flex-wrap: nowrap;
  676.       margin-top: 1px;
  677.   }
  678.  
  679.   .style-scope.yt-live-chat-ticker-renderer #animation-container > [id][class] {
  680.       margin-top: 0px;
  681.       margin-bottom: 0px;
  682.       flex-direction: row;
  683.       flex-wrap: nowrap;
  684.       align-items: center;
  685.       justify-content: flex-start;
  686.   }
  687.  
  688.   .style-scope.yt-live-chat-ticker-renderer #animation-container > [id][class]:first-child::after {
  689.       content: '補';
  690.       visibility: collapse;
  691.       display: inline-block;
  692.       position: relative;
  693.       width: 0;
  694.       line-height: 22px;
  695.   }
  696.  
  697.   ` : '';
  698.  
  699.   const cssText16_FIX_AUTHOR_CHIP_BADGE_POSITION = FIX_AUTHOR_CHIP_BADGE_POSITION ? `
  700.     #card  #author-name-chip > yt-live-chat-author-chip[single-line] {
  701.         flex-wrap: nowrap;
  702.         white-space: nowrap;
  703.         display: inline-flex;
  704.         flex-direction: row;
  705.         text-wrap: nowrap;
  706.         flex-shrink: 0;
  707.         align-items: center;
  708.     }
  709.  
  710.     #card  #author-name-chip {
  711.         display: inline-flex;
  712.         flex-direction: row;
  713.         align-items: flex-start;
  714.     }
  715.   `: '';
  716.  
  717.  
  718.   // Example: https://www.youtube.com/watch?v=Xfytz-igsuc
  719.   const cssText17_FIX_overwidth_banner_message = `
  720.     yt-live-chat-banner-manager#live-chat-banner.style-scope.yt-live-chat-item-list-renderer {
  721.       max-width: 100%;
  722.       box-sizing: border-box;
  723.     }
  724.   `;
  725.  
  726.   const addCss = () => `
  727.  
  728.     @property --ticker-rtime {
  729.       syntax: "<percentage>";
  730.       inherits: false;
  731.       initial-value: 0%;
  732.     }
  733.  
  734.     /*
  735.     .run-ticker {
  736.       background:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2));
  737.     }
  738.  
  739.     .run-ticker-test {
  740.       background: #00000001;
  741.     }
  742.  
  743.     .run-ticker-forced,
  744.     yt-live-chat-ticker-renderer #items > * > #container.run-ticker-forced,
  745.     yt-live-chat-ticker-renderer[class] #items[class] > *[class] > #container.run-ticker-forced[class]
  746.     {
  747.       background:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2)) !important;
  748.     }
  749.     */
  750.  
  751.     .run-ticker {
  752.       --ticker-bg:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2));
  753.     }
  754.  
  755.     .run-ticker,
  756.     yt-live-chat-ticker-renderer #items > * > #container.run-ticker,
  757.     yt-live-chat-ticker-renderer[class] #items[class] > *[class] > #container.run-ticker[class]
  758.     {
  759.       background: var(--ticker-bg) !important;
  760.     }
  761.  
  762.     yt-live-chat-ticker-dummy777-item-renderer {
  763.       background: #00000001;
  764.     }
  765.  
  766.     yt-live-chat-ticker-dummy777-item-renderer[dummy777] {
  767.       position: fixed !important;
  768.       top: -1000px !important;
  769.       left: -1000px !important;
  770.       font-size: 1px !important;
  771.       color: transparent !important;
  772.       pointer-events: none !important;
  773.       z-index: -1 !important;
  774.       contain: strict !important;
  775.       box-sizing: border-box !important;
  776.       pointer-events: none !important;
  777.       user-select: none !important;
  778.       max-width: 1px !important;
  779.       max-height: 1px !important;
  780.       overflow: hidden !important;
  781.       visibility: collapse !important;
  782.       display: none !important;
  783.     }
  784.  
  785.     yt-live-chat-ticker-dummy777-item-renderer #container {
  786.       background: inherit;
  787.     }
  788.  
  789.  
  790.     ${cssText8_fonts_pre_render}
  791.  
  792.     ${cssText9_no_backdrop_filter_when_menu_shown}
  793.  
  794.     @supports (contain: layout paint style) {
  795.  
  796.       ${cssText5}
  797.  
  798.     }
  799.  
  800.     @supports (color: var(--general)) {
  801.  
  802.       html {
  803.           --yt-live-chat-item-list-renderer-padding: 0px 0px;
  804.       }
  805.  
  806.       ${cssText3_smooth_transform_position}
  807.  
  808.       ${cssText7c_will_change_unset}
  809.  
  810.       ${cssText7b_content_visibility_unset}
  811.  
  812.       yt-live-chat-item-list-renderer:not([allow-scroll]) #item-scroller.yt-live-chat-item-list-renderer {
  813.           overflow-y: scroll;
  814.           padding-right: 0;
  815.       }
  816.  
  817.       ${cssText4_smooth_transform_forced_props}
  818.  
  819.       yt-icon[icon="down_arrow"] > *, yt-icon-button#show-more > * {
  820.           pointer-events: none !important;
  821.       }
  822.  
  823.       #continuations, #continuations * {
  824.           contain: strict;
  825.           position: fixed;
  826.           top: 2px;
  827.           height: 1px;
  828.           width: 2px;
  829.           height: 1px;
  830.           visibility: collapse;
  831.       }
  832.  
  833.       ${cssText6b_show_more_button}
  834.  
  835.       ${cssText6d_input_panel_border}
  836.  
  837.       ${cssText6c_input_panel_overflow}
  838.  
  839.     }
  840.  
  841.  
  842.     @supports (overflow-anchor: auto) {
  843.  
  844.       .no-anchor * {
  845.           overflow-anchor: none;
  846.       }
  847.       .no-anchor > item-anchor {
  848.           overflow-anchor: auto;
  849.       }
  850.  
  851.       item-anchor {
  852.  
  853.           height:1px;
  854.           width: 100%;
  855.           transform: scaleY(0.00001);
  856.           transform-origin:0 0;
  857.           contain: strict;
  858.           opacity:0;
  859.           display:flex;
  860.           position:relative;
  861.           flex-shrink:0;
  862.           flex-grow:0;
  863.           margin-bottom:0;
  864.           overflow:hidden;
  865.           box-sizing:border-box;
  866.           visibility: visible;
  867.           content-visibility: visible;
  868.           contain-intrinsic-size: auto 1px;
  869.           pointer-events:none !important;
  870.  
  871.       }
  872.  
  873.       #item-scroller.style-scope.yt-live-chat-item-list-renderer[class] {
  874.           overflow-anchor: initial !important; /* whenever ENABLE_OVERFLOW_ANCHOR or not */
  875.       }
  876.  
  877.       html item-anchor {
  878.  
  879.           height: 1px;
  880.           width: 1px;
  881.           top: auto;
  882.           left: auto;
  883.           right: auto;
  884.           bottom: auto;
  885.           transform: translateY(-1px);
  886.           position: absolute;
  887.           z-index: -1;
  888.  
  889.       }
  890.  
  891.     }
  892.  
  893.     @supports (color: var(--pre-rendering)) {
  894.  
  895.       @keyframes dontRenderAnimation {
  896.           0% {
  897.               background-position-x: 3px;
  898.           }
  899.           100% {
  900.               background-position-x: 4px;
  901.           }
  902.       }
  903.  
  904.       .dont-render[class] {
  905.           /* visibility: collapse !important; */
  906.           /* visibility: collapse will make innerText become "" which conflicts with BetterStreamChat; see https://greasyfork.org/scripts/469878/discussions/197267 */
  907.  
  908.           transform: scale(0.01) !important;
  909.           transform: scale(0.00001) !important;
  910.           transform: scale(0.0000001) !important;
  911.           transform-origin: 0 0 !important;
  912.           z-index: -1 !important;
  913.           contain: strict !important;
  914.           box-sizing: border-box !important;
  915.  
  916.           height: 1px !important;
  917.           height: 0.1px !important;
  918.           height: 0.01px !important;
  919.           height: 0.0001px !important;
  920.           height: 0.000001px !important;
  921.  
  922.           animation: dontRenderAnimation 1ms linear 80ms 1 normal forwards !important;
  923.  
  924.           pointer-events: none !important;
  925.           user-select: none !important;
  926.  
  927.       }
  928.  
  929.       #sk35z {
  930.         display: block !important;
  931.  
  932.         visibility: collapse !important;
  933.  
  934.         transform: scale(0.01) !important;
  935.         transform: scale(0.00001) !important;
  936.         transform: scale(0.0000001) !important;
  937.         transform-origin: 0 0 !important;
  938.         z-index: -1 !important;
  939.         contain: strict !important;
  940.         box-sizing: border-box !important;
  941.  
  942.         height: 1px !important;
  943.         height: 0.1px !important;
  944.         height: 0.01px !important;
  945.         height: 0.0001px !important;
  946.         height: 0.000001px !important;
  947.  
  948.         position: absolute !important;
  949.         top: -1000px !important;
  950.         left: -1000px !important;
  951.  
  952.       }
  953.  
  954.     }
  955.  
  956.     [rNgzQ] {
  957.       opacity: 0 !important;
  958.       pointer-events: none !important;
  959.     }
  960.  
  961.  
  962.     ${cssText10_show_more_blinker}
  963.  
  964.     ${cssText11_entire_message_clickable}
  965.  
  966.     ${cssText12_nowrap_tooltip}
  967.  
  968.     ${cssText13_no_text_select_when_menu_visible}
  969.  
  970.     ${cssText14_NO_FILTER_DROPDOWN_BORDER}
  971.  
  972.     ${cssText15_FIX_ANIMATION_TICKER_TEXT_POSITION}
  973.  
  974.     ${cssText16_FIX_AUTHOR_CHIP_BADGE_POSITION}
  975.  
  976.     ${cssText17_FIX_overwidth_banner_message}
  977.  
  978.   `;
  979.  
  980.  
  981.   const konsole = {
  982.     nil: Symbol(),
  983.     logs: [],
  984.     style: '',
  985.     log(...args) {
  986.       konsole.logs.push({
  987.         type: 'log',
  988.         msg: [konsole.tag || konsole.nil, ...args, konsole.style || konsole.nil].filter(e => e !== konsole.nil)
  989.       });
  990.     },
  991.     setTag(tag) {
  992.       konsole.tag = tag;
  993.     },
  994.     setStyle(style) {
  995.       konsole.style = style;
  996.     },
  997.     groupCollapsed(...args) {
  998.  
  999.       konsole.logs.push({
  1000.         type: 'groupCollapsed',
  1001.         msg: [...args].filter(e => e !== konsole.nil)
  1002.       });
  1003.     },
  1004.     groupEnd() {
  1005.  
  1006.       konsole.logs.push({
  1007.         type: 'groupEnd'
  1008.       })
  1009.     },
  1010.     print() {
  1011.       const copy = konsole.logs.slice(0);
  1012.       konsole.logs.length = 0;
  1013.       for (const { type, msg } of copy) {
  1014.         if (type === 'log') {
  1015.           console.log(...msg)
  1016.         } else if (type === 'groupCollapsed') {
  1017.  
  1018.           console.groupCollapsed(...msg)
  1019.         } else if (type === 'groupEnd') {
  1020.           console.groupEnd();
  1021.         }
  1022.  
  1023.       }
  1024.  
  1025.     }
  1026.   };
  1027.  
  1028.   /*
  1029.   konsole.groupCollapsedX = (text1, text2) => {
  1030.  
  1031.     if(!text2){
  1032.  
  1033.       konsole.groupCollapsed(`%c${text1}`,
  1034.       "background-color: #010502; color: #6acafe; font-weight: 700; padding: 2px;"
  1035.     );
  1036.     }else{
  1037.  
  1038.       konsole.groupCollapsed(`%c${text1}%c${text2}`,
  1039.       "background-color: #010502; color: #6acafe; font-weight: 700; padding: 2px;",
  1040.       "background-color: #010502; color: #6ad9fe; font-weight: 300; padding: 2px;"
  1041.     );
  1042.     }
  1043.   }
  1044.  
  1045.   konsole.groupCollapsedX('YouTube Super Fast Chat');
  1046.  
  1047.   setTimeout(()=>{
  1048.  
  1049.     konsole.setTag('[[Fonts Pre-Rendering]]');
  1050.     konsole.log(123);
  1051.     konsole.log('wsd',332, 'ssa');
  1052.     konsole.setTag('');
  1053.   }, 100);
  1054.  
  1055.   setTimeout(()=>{
  1056.  
  1057.     konsole.setTag('[[Fonts Pre-Rendering 2]]');
  1058.     konsole.log(123);
  1059.     konsole.log('wsd',332, 'ssa');
  1060.     konsole.setTag('');
  1061.   }, 300);
  1062.  
  1063.   setTimeout(()=>{
  1064.  
  1065.   konsole.groupEnd();
  1066.   konsole.print();
  1067.   }, 1000);
  1068.  
  1069.   */
  1070.  
  1071.   const win = typeof unsafeWindow !== 'undefined' ? unsafeWindow : (this instanceof Window ? this : window);
  1072.  
  1073.   // Create a unique key for the script and check if it is already running
  1074.   const hkey_script = 'mchbwnoasqph';
  1075.   if (win[hkey_script]) throw new Error('Duplicated Userscript Calling'); // avoid duplicated scripting
  1076.   win[hkey_script] = true;
  1077.  
  1078.   if (!!ATTEMPT_ANIMATED_TICKER_BACKGROUND) {
  1079.  
  1080.     let te4 = setTimeout(() => { }); // dummy; skip timerId only;
  1081.     if (te4 < 3) {
  1082.       setTimeout(() => { });
  1083.       setTimeout(() => { });
  1084.     }
  1085.  
  1086.   }
  1087.  
  1088.   const firstKey = (obj) => {
  1089.     for (const key in obj) {
  1090.       if (obj.hasOwnProperty(key)) return key;
  1091.     }
  1092.     return null;
  1093.   }
  1094.  
  1095.   const firstObjectKey = (obj) => {
  1096.     for (const key in obj) {
  1097.       if (obj.hasOwnProperty(key) && typeof obj[key] === 'object') return key;
  1098.     }
  1099.     return null;
  1100.   }
  1101.  
  1102.   /**
  1103.  * Takes in a __SORTED__ array and inserts the provided value into
  1104.  * the correct, sorted, position.
  1105.  * > https://github.com/bhowell2/binary-insert-js/
  1106.  * @param array the sorted array where the provided value needs to be inserted (in order)
  1107.  * @param insertValue value to be added to the array
  1108.  * @param comparator function that helps determine where to insert the value (
  1109.  */
  1110.   function binaryInsert(array, insertValue, comparator) {
  1111.     let left = 0;
  1112.     let right = array.length;
  1113.  
  1114.     let z;
  1115.     // Directly return if array is empty or the insertValue should be at the end
  1116.     if (right === 0 || (z = comparator(array[right - 1], insertValue)) <= 0) {
  1117.       array.push(insertValue);
  1118.       return array;
  1119.     }
  1120.  
  1121.     // Check if the insertValue should be at the beginning
  1122.     if ((right === 1 ? z : comparator(array[0], insertValue)) >= 0) {
  1123.       array.unshift(insertValue);
  1124.       return array;
  1125.     }
  1126.     ++left; --right;
  1127.  
  1128.     // Main binary search loop to find the insertion position
  1129.     while (left < right) {
  1130.       const mid = Math.floor((right + left) / 2);
  1131.       const compared = comparator(array[mid], insertValue);
  1132.       if (compared < 0) {
  1133.         left = mid + 1;
  1134.       } else if (compared > 0) {
  1135.         right = mid;
  1136.       } else {
  1137.         // If equal, insert at the mid position
  1138.         left = right = mid;
  1139.         break;
  1140.       }
  1141.     }
  1142.  
  1143.     // Insertion is always at the right position due to the nature of the binary search
  1144.     array.splice(right, 0, insertValue);
  1145.     return array;
  1146.   }
  1147.  
  1148.  
  1149.  
  1150.  
  1151.   class LimitedSizeSet extends Set {
  1152.     constructor(n) {
  1153.       super();
  1154.       this.limit = n;
  1155.     }
  1156.  
  1157.     add(key) {
  1158.       if (!super.has(key)) {
  1159.         super.add(key);
  1160.         let n = super.size - this.limit;
  1161.         if (n > 0) {
  1162.           const iterator = super.values();
  1163.           do {
  1164.             const firstKey = iterator.next().value; // Get the first (oldest) key
  1165.             super.delete(firstKey); // Delete the oldest key
  1166.           } while (--n > 0)
  1167.         }
  1168.       }
  1169.     }
  1170.  
  1171.     removeAdd(key) {
  1172.       super.delete(key);
  1173.       super.add(key);
  1174.     }
  1175.  
  1176.   }
  1177.  
  1178.   // function removeElementFromArray(arr, index) {
  1179.   //   if (index >= 0 && index < arr.length) {
  1180.   //     arr.splice(index, 1);
  1181.   //   }
  1182.   // }
  1183.  
  1184.   // function getRandomInt(a, b) {
  1185.   //   // Ensure that 'a' and 'b' are integers
  1186.   //   a = Math.ceil(a);
  1187.   //   b = Math.floor(b);
  1188.  
  1189.   //   // Generate a random integer in the range [a, b]
  1190.   //   return Math.floor(Math.random() * (b - a + 1)) + a;
  1191.   // }
  1192.  
  1193.   function deepCopy(obj, skipKeys) {
  1194.     skipKeys = skipKeys || [];
  1195.     if (!obj || typeof obj !== 'object') return obj;
  1196.     if (Array.isArray(obj)) {
  1197.       return obj.map(item => deepCopy(item, skipKeys));
  1198.     }
  1199.     const copy = {};
  1200.     for (let key in obj) {
  1201.       if (!skipKeys.includes(key)) {
  1202.         copy[key] = deepCopy(obj[key], skipKeys);
  1203.       }
  1204.     }
  1205.     return copy;
  1206.   }
  1207.  
  1208.   class Mutex {
  1209.  
  1210.     constructor() {
  1211.       this.p = Promise.resolve()
  1212.     }
  1213.  
  1214.     /**
  1215.      *  @param {(lockResolve: () => void)} f
  1216.      */
  1217.     lockWith(f) {
  1218.       this.p = this.p.then(() => new Promise(f).catch(console.warn))
  1219.     }
  1220.  
  1221.   }
  1222.  
  1223.   const PromiseExternal = ((resolve_, reject_) => {
  1224.     const h = (resolve, reject) => { resolve_ = resolve; reject_ = reject };
  1225.     return class PromiseExternal extends Promise {
  1226.       constructor(cb = h) {
  1227.         super(cb);
  1228.         if (cb === h) {
  1229.           /** @type {(value: any) => void} */
  1230.           this.resolve = resolve_;
  1231.           /** @type {(reason?: any) => void} */
  1232.           this.reject = reject_;
  1233.         }
  1234.       }
  1235.     };
  1236.   })();
  1237.  
  1238.   /** @type {typeof PromiseExternal.prototype | null} */
  1239.   let relayPromise = null;
  1240.  
  1241.  
  1242.   /** @type {typeof PromiseExternal.prototype | null} */
  1243.   let onPlayStateChangePromise = null;
  1244.  
  1245.  
  1246.  
  1247.   let playEventsStack = Promise.resolve();
  1248.  
  1249.  
  1250.   let playerProgressChangedArg1 = null;
  1251.   let playerProgressChangedArg2 = null;
  1252.   let playerProgressChangedArg3 = null;
  1253.  
  1254.  
  1255.   function dr(s) {
  1256.     // reserved for future use
  1257.     return s;
  1258.     // return window.deWeakJS ? window.deWeakJS(s) : s;
  1259.   }
  1260.  
  1261.   const insp = o => o ? (o.polymerController || o.inst || o || 0) : (o || 0);
  1262.   const indr = o => insp(o).$ || o.$ || 0;
  1263.  
  1264.   const getProto = (element) => {
  1265.     if (element) {
  1266.       const cnt = insp(element);
  1267.       return cnt.constructor.prototype || null;
  1268.     }
  1269.     return null;
  1270.   }
  1271.  
  1272.   const assertor = (f) => f() || console.assert(false, f + "");
  1273.  
  1274.   const fnIntegrity = (f, d) => {
  1275.     if (!f || typeof f !== 'function') {
  1276.       console.warn('f is not a function', f);
  1277.       return;
  1278.     }
  1279.     let p = f + "", s = 0, j = -1, w = 0;
  1280.     for (let i = 0, l = p.length; i < l; i++) {
  1281.       const t = p[i];
  1282.       if (((t >= 'a' && t <= 'z') || (t >= 'A' && t <= 'Z'))) {
  1283.         if (j < i - 1) w++;
  1284.         j = i;
  1285.       } else {
  1286.         s++;
  1287.       }
  1288.     }
  1289.     let itz = `${f.length}.${s}.${w}`;
  1290.     if (!d) {
  1291.       return itz;
  1292.     } else if (itz !== d) {
  1293.       console.warn('fnIntegrity=false', itz);
  1294.       return false;
  1295.     } else {
  1296.       return true;
  1297.     }
  1298.   }
  1299.  
  1300.  
  1301.   const px2cm = (px) => px * window.devicePixelRatio * 0.026458333;
  1302.   const px2mm = (px) => px * window.devicePixelRatio * 0.26458333;
  1303.  
  1304.  
  1305.   ; (ENABLE_FLAGS_MAINTAIN_STABLE_LIST || ENABLE_FLAGS_REUSE_COMPONENTS || DISABLE_FLAGS_SHADYDOM_FREE) && (() => {
  1306.  
  1307.     const _config_ = () => {
  1308.       try {
  1309.         return ytcfg.data_;
  1310.       } catch (e) { }
  1311.       return null;
  1312.     };
  1313.  
  1314.     const flagsFn = (EXPERIMENT_FLAGS) => {
  1315.  
  1316.       // console.log(700)
  1317.  
  1318.       if (!EXPERIMENT_FLAGS) return;
  1319.  
  1320.       if (ENABLE_FLAGS_MAINTAIN_STABLE_LIST) {
  1321.         if (USE_MAINTAIN_STABLE_LIST_ONLY_WHEN_KS_FLAG_IS_SET ? EXPERIMENT_FLAGS.kevlar_should_maintain_stable_list === true : true) {
  1322.           // EXPERIMENT_FLAGS.kevlar_tuner_should_test_maintain_stable_list = true; // timestamp toggle issue
  1323.           EXPERIMENT_FLAGS.kevlar_should_maintain_stable_list = true;
  1324.           // console.log(701)
  1325.         }
  1326.       }
  1327.  
  1328.       if (ENABLE_FLAGS_REUSE_COMPONENTS) {
  1329.         EXPERIMENT_FLAGS.kevlar_tuner_should_test_reuse_components = true;
  1330.         EXPERIMENT_FLAGS.kevlar_tuner_should_reuse_components = true;
  1331.         // console.log(702);
  1332.       }
  1333.  
  1334.       if (DISABLE_FLAGS_SHADYDOM_FREE) {
  1335.         EXPERIMENT_FLAGS.enable_shadydom_free_scoped_node_methods = false;
  1336.         EXPERIMENT_FLAGS.enable_shadydom_free_scoped_query_methods = false;
  1337.         EXPERIMENT_FLAGS.enable_shadydom_free_scoped_readonly_properties_batch_one = false;
  1338.         EXPERIMENT_FLAGS.enable_shadydom_free_parent_node = false;
  1339.         EXPERIMENT_FLAGS.enable_shadydom_free_children = false;
  1340.         EXPERIMENT_FLAGS.enable_shadydom_free_last_child = false;
  1341.       }
  1342.  
  1343.       //   EXPERIMENT_FLAGS.enable_button_behavior_reuse = false;
  1344.  
  1345.     };
  1346.  
  1347.     const uf = (config_) => {
  1348.       config_ = config_ || _config_();
  1349.       if (config_) {
  1350.         const { EXPERIMENT_FLAGS, EXPERIMENTS_FORCED_FLAGS } = config_;
  1351.         if (EXPERIMENT_FLAGS) {
  1352.           flagsFn(EXPERIMENT_FLAGS);
  1353.           if (EXPERIMENTS_FORCED_FLAGS) flagsFn(EXPERIMENTS_FORCED_FLAGS);
  1354.         }
  1355.       }
  1356.     }
  1357.  
  1358.     window._ytConfigHacks.add((config_) => {
  1359.       uf(config_);
  1360.     });
  1361.  
  1362.     uf();
  1363.  
  1364.   })();
  1365.  
  1366.   if (DISABLE_Translation_By_Google) {
  1367.  
  1368.     let mo = new MutationObserver(() => {
  1369.  
  1370.       if (!mo) return;
  1371.       let h = document.head;
  1372.       if (!h) return;
  1373.       mo.disconnect();
  1374.       mo.takeRecords();
  1375.       mo = null;
  1376.  
  1377.       let meta = document.createElement('meta');
  1378.       meta.setAttribute('name', 'google');
  1379.       meta.setAttribute('content', 'notranslate');
  1380.       h.appendChild(meta);
  1381.  
  1382.  
  1383.     });
  1384.     mo.observe(document, { subtree: true, childList: true });
  1385.   }
  1386.  
  1387.  
  1388.   console.assert(MAX_ITEMS_FOR_TOTAL_DISPLAY > 0 && MAX_ITEMS_FOR_FULL_FLUSH > 0 && MAX_ITEMS_FOR_TOTAL_DISPLAY > MAX_ITEMS_FOR_FULL_FLUSH)
  1389.  
  1390.   let ENABLE_DELAYED_CHAT_OCCURRENCE_CAPABLE = false;
  1391.   const isContainSupport = CSS.supports('contain', 'layout paint style');
  1392.   if (!isContainSupport) {
  1393.     console.warn("Your browser does not support css property 'contain'.\nPlease upgrade to the latest version.".trim());
  1394.   } else {
  1395.     ENABLE_DELAYED_CHAT_OCCURRENCE_CAPABLE = true;
  1396.   }
  1397.  
  1398.   let ENABLE_OVERFLOW_ANCHOR_CAPABLE = false;
  1399.   const isOverflowAnchorSupport = CSS.supports('overflow-anchor', 'auto');
  1400.   if (!isOverflowAnchorSupport) {
  1401.     console.warn("Your browser does not support css property 'overflow-anchor'.\nPlease upgrade to the latest version.".trim());
  1402.   } else {
  1403.     ENABLE_OVERFLOW_ANCHOR_CAPABLE = true;
  1404.   }
  1405.  
  1406.   const NOT_FIREFOX = !CSS.supports('-moz-appearance', 'none'); // 1. Firefox does not have the flicking issue; 2. Firefox's OVERFLOW_ANCHOR is less effective than Chromium's.
  1407.  
  1408.   const ENABLE_OVERFLOW_ANCHOR = ENABLE_OVERFLOW_ANCHOR_PREFERRED && ENABLE_OVERFLOW_ANCHOR_CAPABLE && ENABLE_NO_SMOOTH_TRANSFORM;
  1409.   const ENABLE_DELAYED_CHAT_OCCURRENCE = ENABLE_DELAYED_CHAT_OCCURRENCE_PREFERRED && ENABLE_DELAYED_CHAT_OCCURRENCE_CAPABLE && ENABLE_OVERFLOW_ANCHOR && ENABLE_NO_SMOOTH_TRANSFORM && NOT_FIREFOX;
  1410.  
  1411.   let hasTimerModified = null;
  1412.   const DO_CHECK_TICKER_BACKGROUND_OVERRIDED = !!ATTEMPT_ANIMATED_TICKER_BACKGROUND || ENABLE_RAF_HACK_TICKERS;
  1413.  
  1414.   const fxOperator = (proto, propertyName) => {
  1415.     let propertyDescriptorGetter = null;
  1416.     try {
  1417.       propertyDescriptorGetter = Object.getOwnPropertyDescriptor(proto, propertyName).get;
  1418.     } catch (e) { }
  1419.     return typeof propertyDescriptorGetter === 'function' ? (e) => {
  1420.       try {
  1421.  
  1422.         return propertyDescriptorGetter.call(dr(e));
  1423.       } catch (e) { }
  1424.       return e[propertyName];
  1425.     } : (e) => e[propertyName];
  1426.   };
  1427.  
  1428.   const nodeParent = fxOperator(Node.prototype, 'parentNode');
  1429.   // const nFirstElem = fxOperator(HTMLElement.prototype, 'firstElementChild');
  1430.   const nPrevElem = fxOperator(HTMLElement.prototype, 'previousElementSibling');
  1431.   const nNextElem = fxOperator(HTMLElement.prototype, 'nextElementSibling');
  1432.   const nLastElem = fxOperator(HTMLElement.prototype, 'lastElementChild');
  1433.  
  1434.   const groupCollapsed = (text1, text2) => {
  1435.  
  1436.     console.groupCollapsed(`%c${text1}%c${text2}`,
  1437.       "background-color: #010502; color: #6acafe; font-weight: 700; padding: 2px;",
  1438.       "background-color: #010502; color: #6ad9fe; font-weight: 300; padding: 2px;"
  1439.     );
  1440.   }
  1441.  
  1442.   // const microNow = () => performance.now() + (performance.timeOrigin || performance.timing.navigationStart);
  1443.  
  1444.  
  1445.   const EVENT_KEY_ON_REGISTRY_READY = "ytI-ce-registry-created";
  1446.   const onRegistryReady = (callback) => {
  1447.     if (typeof customElements === 'undefined') {
  1448.       if (!('__CE_registry' in document)) {
  1449.         // https://github.com/webcomponents/polyfills/
  1450.         Object.defineProperty(document, '__CE_registry', {
  1451.           get() {
  1452.             // return undefined
  1453.           },
  1454.           set(nv) {
  1455.             if (typeof nv == 'object') {
  1456.               delete this.__CE_registry;
  1457.               this.__CE_registry = nv;
  1458.               this.dispatchEvent(new CustomEvent(EVENT_KEY_ON_REGISTRY_READY));
  1459.             }
  1460.             return true;
  1461.           },
  1462.           enumerable: false,
  1463.           configurable: true
  1464.         })
  1465.       }
  1466.       let eventHandler = (evt) => {
  1467.         document.removeEventListener(EVENT_KEY_ON_REGISTRY_READY, eventHandler, false);
  1468.         const f = callback;
  1469.         callback = null;
  1470.         eventHandler = null;
  1471.         f();
  1472.       };
  1473.       document.addEventListener(EVENT_KEY_ON_REGISTRY_READY, eventHandler, false);
  1474.     } else {
  1475.       callback();
  1476.     }
  1477.   };
  1478.  
  1479.   const promiseForCustomYtElementsReady = new Promise(onRegistryReady);
  1480.  
  1481.   const renderReadyPn = typeof ResizeObserver !== 'undefined' ? (sizingTarget) => {
  1482.  
  1483.     return new Promise(resolve => {
  1484.  
  1485.       let ro = new ResizeObserver(entries => {
  1486.         if (entries && entries.length >= 1) {
  1487.           resolve();
  1488.           ro.disconnect();
  1489.           ro = null;
  1490.         }
  1491.       });
  1492.       ro.observe(sizingTarget);
  1493.  
  1494.  
  1495.  
  1496.     });
  1497.  
  1498.   } : (sizingTarget) => {
  1499.  
  1500.  
  1501.     return new Promise(resolve => {
  1502.  
  1503.       let io = new IntersectionObserver(entries => {
  1504.         if (entries && entries.length >= 1) {
  1505.           resolve();
  1506.           io.disconnect();
  1507.           io = null;
  1508.         }
  1509.       });
  1510.       io.observe(sizingTarget);
  1511.  
  1512.  
  1513.  
  1514.     });
  1515.  
  1516.   };
  1517.  
  1518.   /* globals WeakRef:false */
  1519.  
  1520.   /** @type {(o: Object | null) => WeakRef | null} */
  1521.   const mWeakRef = typeof WeakRef === 'function' ? (o => o ? new WeakRef(o) : null) : (o => o || null);
  1522.  
  1523.   /** @type {(wr: Object | null) => Object | null} */
  1524.   const kRef = (wr => (wr && wr.deref) ? wr.deref() : wr);
  1525.  
  1526.   const getLCRDummy = () => {
  1527.     // direct createElement or createComponent_ will make the emoji rendering crashed. reason TBC
  1528.  
  1529.     return Promise.all([customElements.whenDefined('yt-live-chat-app'), customElements.whenDefined('yt-live-chat-renderer')]).then(async () => {
  1530.  
  1531.       const tag = "yt-live-chat-renderer"
  1532.       let dummy = document.querySelector(tag);
  1533.       if (!dummy) {
  1534.  
  1535.         let mo = null;
  1536.  
  1537.         const ytLiveChatApp = document.querySelector('yt-live-chat-app') || document.createElement('yt-live-chat-app');
  1538.  
  1539.         const lcaProto = getProto(ytLiveChatApp);
  1540.  
  1541.         dummy = await new Promise(resolve => {
  1542.  
  1543.           if (typeof lcaProto.createComponent_ === 'function' && !lcaProto.createComponent99_) {
  1544.  
  1545.             lcaProto.createComponent99_ = lcaProto.createComponent_;
  1546.             lcaProto.createComponent98_ = function (a, b, c) {
  1547.               // (3) ['yt-live-chat-renderer', {…}, true]
  1548.               const r = this.createComponent99_.apply(this, arguments);
  1549.               if (a === 'yt-live-chat-renderer') {
  1550.                 resolve(r);
  1551.               }
  1552.               return r;
  1553.             };
  1554.             lcaProto.createComponent_ = lcaProto.createComponent98_;
  1555.  
  1556.           } else {
  1557.  
  1558.             mo = new MutationObserver(() => {
  1559.               const t = document.querySelector(tag);
  1560.               if (t) {
  1561.                 resolve(t);
  1562.               }
  1563.             });
  1564.             mo.observe(document, { subtree: true, childList: true })
  1565.           }
  1566.  
  1567.         });
  1568.  
  1569.         if (mo) {
  1570.           mo.disconnect();
  1571.           mo.takeRecords();
  1572.           mo = null;
  1573.         }
  1574.  
  1575.         if (lcaProto.createComponent99_ && lcaProto.createComponent_ && lcaProto.createComponent98_ === lcaProto.createComponent_) {
  1576.           lcaProto.createComponent_ = lcaProto.createComponent99_;
  1577.           lcaProto.createComponent99_ = null;
  1578.           lcaProto.createComponent98_ = null;
  1579.         }
  1580.  
  1581.       }
  1582.       return dummy;
  1583.  
  1584.     });
  1585.   }
  1586.  
  1587.   const { addCssManaged } = (() => {
  1588.  
  1589.     const addFontPreRendering = () => {
  1590.  
  1591.       groupCollapsed("YouTube Super Fast Chat", " | Fonts Pre-Rendering");
  1592.  
  1593.       let efsContainer = document.createElement('elzm-fonts');
  1594.       efsContainer.id = 'elzm-fonts-yk75g'
  1595.  
  1596.       const arr = [];
  1597.       let p = document.createElement('elzm-font');
  1598.       arr.push(p);
  1599.  
  1600.       if (ENABLE_FONT_PRE_RENDERING & 1) {
  1601.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1602.  
  1603.           p = document.createElement('elzm-font');
  1604.           p.style.fontWeight = size;
  1605.           arr.push(p);
  1606.         }
  1607.       }
  1608.  
  1609.       if (ENABLE_FONT_PRE_RENDERING & 2) {
  1610.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1611.  
  1612.           p = document.createElement('elzm-font');
  1613.           p.style.fontFamily = 'Roboto';
  1614.           p.style.fontWeight = size;
  1615.           arr.push(p);
  1616.         }
  1617.       }
  1618.  
  1619.       if (ENABLE_FONT_PRE_RENDERING & 4) {
  1620.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1621.  
  1622.           p = document.createElement('elzm-font');
  1623.           p.style.fontFamily = '"YouTube Noto",Roboto,Arial,Helvetica,sans-serif';
  1624.           p.style.fontWeight = size;
  1625.           arr.push(p);
  1626.         }
  1627.       }
  1628.  
  1629.  
  1630.       if (ENABLE_FONT_PRE_RENDERING & 8) {
  1631.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1632.  
  1633.           p = document.createElement('elzm-font');
  1634.           p.style.fontFamily = '"Noto",Roboto,Arial,Helvetica,sans-serif';
  1635.           p.style.fontWeight = size;
  1636.           arr.push(p);
  1637.         }
  1638.       }
  1639.  
  1640.  
  1641.       if (ENABLE_FONT_PRE_RENDERING & 16) {
  1642.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1643.  
  1644.           p = document.createElement('elzm-font');
  1645.           p.style.fontFamily = 'sans-serif';
  1646.           p.style.fontWeight = size;
  1647.           arr.push(p);
  1648.         }
  1649.       }
  1650.  
  1651.       console.log('number of elzm-font elements', arr.length);
  1652.  
  1653.       HTMLElement.prototype.append.apply(efsContainer, arr);
  1654.  
  1655.       (document.body || document.documentElement).appendChild(efsContainer);
  1656.  
  1657.  
  1658.       console.log('elzm-font elements have been added to the page for rendering.');
  1659.  
  1660.       console.groupEnd();
  1661.  
  1662.     }
  1663.  
  1664.     let isCssAdded = false;
  1665.  
  1666.     function addCssElement() {
  1667.       let s = document.createElement('style');
  1668.       s.id = 'ewRvC';
  1669.       return s;
  1670.     }
  1671.  
  1672.     const addCssManaged = () => {
  1673.       if (!isCssAdded && document.documentElement && document.head) {
  1674.         isCssAdded = true;
  1675.         document.head.appendChild(dr(addCssElement())).textContent = addCss();
  1676.         if (ENABLE_FONT_PRE_RENDERING) {
  1677.           Promise.resolve().then(addFontPreRendering)
  1678.         }
  1679.       }
  1680.     }
  1681.  
  1682.     return { addCssManaged };
  1683.   })();
  1684.  
  1685.  
  1686.   const { setupStyle } = (() => {
  1687.  
  1688.     const sp7 = Symbol();
  1689.  
  1690.     const proxyHelperFn = (dummy) => ({
  1691.  
  1692.       get(target, prop) {
  1693.         return (prop in dummy) ? dummy[prop] : prop === sp7 ? target : target[prop];
  1694.       },
  1695.       set(target, prop, value) {
  1696.         if (!(prop in dummy)) {
  1697.           target[prop] = value;
  1698.         }
  1699.         return true;
  1700.       },
  1701.       has(target, prop) {
  1702.         return (prop in target);
  1703.       },
  1704.       deleteProperty(target, prop) {
  1705.         return true;
  1706.       },
  1707.       ownKeys(target) {
  1708.         return Object.keys(target);
  1709.       },
  1710.       defineProperty(target, key, descriptor) {
  1711.         return Object.defineProperty(target, key, descriptor);
  1712.       },
  1713.       getOwnPropertyDescriptor(target, key) {
  1714.         return Object.getOwnPropertyDescriptor(target, key);
  1715.       },
  1716.  
  1717.     });
  1718.  
  1719.     const setupStyle = (m1, m2) => {
  1720.       if (!ENABLE_NO_SMOOTH_TRANSFORM) return;
  1721.  
  1722.       const dummy1v = {
  1723.         transform: '',
  1724.         height: '',
  1725.         minHeight: '',
  1726.         paddingBottom: '',
  1727.         paddingTop: ''
  1728.       };
  1729.  
  1730.       const dummyStyleFn = (k) => (function () { const style = this[sp7]; return style[k](...arguments); });
  1731.       for (const k of ['toString', 'getPropertyPriority', 'getPropertyValue', 'item', 'removeProperty', 'setProperty']) {
  1732.         dummy1v[k] = dummyStyleFn(k);
  1733.       }
  1734.  
  1735.       const dummy1p = proxyHelperFn(dummy1v);
  1736.       const sp1v = new Proxy(m1.style, dummy1p);
  1737.       const sp2v = new Proxy(m2.style, dummy1p);
  1738.       Object.defineProperty(m1, 'style', { get() { return sp1v }, set() { }, enumerable: true, configurable: true });
  1739.       Object.defineProperty(m2, 'style', { get() { return sp2v }, set() { }, enumerable: true, configurable: true });
  1740.       m1.removeAttribute("style");
  1741.       m2.removeAttribute("style");
  1742.  
  1743.     }
  1744.  
  1745.     return { setupStyle };
  1746.  
  1747.   })();
  1748.  
  1749.  
  1750.  
  1751.   function setThumbnails(config) {
  1752.  
  1753.     const { baseObject, thumbnails, flag0, imageLinks } = config;
  1754.  
  1755.     if (flag0 || (ENABLE_PRELOAD_THUMBNAIL && imageLinks)) {
  1756.  
  1757.  
  1758.       if (thumbnails && thumbnails.length > 0) {
  1759.         if (flag0 > 0 && thumbnails.length > 1) {
  1760.           let pSize = 0;
  1761.           let newThumbnails = [];
  1762.           for (const thumbnail of thumbnails) {
  1763.             if (!thumbnail || !thumbnail.url) continue;
  1764.             const squarePhoto = thumbnail.width === thumbnail.height && typeof thumbnail.width === 'number';
  1765.             const condSize = pSize <= 0 || (flag0 === 1 ? pSize > thumbnail.width : pSize < thumbnail.width);
  1766.             const leastSizeFulfilled = squarePhoto ? thumbnail.width >= LEAST_IMAGE_SIZE : true;
  1767.             if ((!squarePhoto || condSize) && leastSizeFulfilled) {
  1768.               newThumbnails.push(thumbnail);
  1769.               if (imageLinks) imageLinks.add(thumbnail.url);
  1770.             }
  1771.             if (squarePhoto && condSize && leastSizeFulfilled) {
  1772.               pSize = thumbnail.width;
  1773.             }
  1774.           }
  1775.           if (thumbnails.length !== newThumbnails.length && thumbnails === baseObject.thumbnails && newThumbnails.length > 0) {
  1776.             baseObject.thumbnails = newThumbnails;
  1777.           } else {
  1778.             newThumbnails.length = 0;
  1779.           }
  1780.           newThumbnails = null;
  1781.         } else {
  1782.           for (const thumbnail of thumbnails) {
  1783.             if (thumbnail && thumbnail.url) {
  1784.               if (imageLinks) imageLinks.add(thumbnail.url);
  1785.             }
  1786.           }
  1787.         }
  1788.       }
  1789.  
  1790.     }
  1791.   }
  1792.  
  1793.   function fixLiveChatItem(item, imageLinks) {
  1794.     const liveChatTextMessageRenderer = (item || 0).liveChatTextMessageRenderer || 0;
  1795.     if (liveChatTextMessageRenderer) {
  1796.       const messageRuns = (liveChatTextMessageRenderer.message || 0).runs || 0;
  1797.       if (messageRuns && messageRuns.length > 0) {
  1798.         for (const run of messageRuns) {
  1799.           const emojiImage = (((run || 0).emoji || 0).image || 0);
  1800.           setThumbnails({
  1801.             baseObject: emojiImage,
  1802.             thumbnails: emojiImage.thumbnails,
  1803.             flag0: EMOJI_IMAGE_SINGLE_THUMBNAIL,
  1804.             imageLinks
  1805.           });
  1806.         }
  1807.       }
  1808.       const authorPhoto = liveChatTextMessageRenderer.authorPhoto || 0;
  1809.       setThumbnails({
  1810.         baseObject: authorPhoto,
  1811.         thumbnails: authorPhoto.thumbnails,
  1812.         flag0: AUTHOR_PHOTO_SINGLE_THUMBNAIL,
  1813.         imageLinks
  1814.       });
  1815.     }
  1816.   }
  1817.  
  1818.  
  1819.  
  1820.   let kptPF = null;
  1821.   const emojiPrefetched = new LimitedSizeSet(PREFETCH_LIMITED_SIZE_EMOJI);
  1822.   const authorPhotoPrefetched = new LimitedSizeSet(PREFETCH_LIMITED_SIZE_AUTHOR_PHOTO);
  1823.  
  1824.   function linker(link, rel, href, _as) {
  1825.     return new Promise(resolve => {
  1826.       if (!link) link = document.createElement('link');
  1827.       link.rel = rel;
  1828.       if (_as) link.setAttribute('as', _as);
  1829.       link.onload = function () {
  1830.         resolve({
  1831.           link: this,
  1832.           success: true
  1833.         })
  1834.         this.remove();
  1835.       };
  1836.       link.onerror = function () {
  1837.         resolve({
  1838.           link: this,
  1839.           success: false
  1840.         });
  1841.         this.remove();
  1842.       };
  1843.       link.href = href;
  1844.       document.head.appendChild(link);
  1845.       link = null;
  1846.     });
  1847.   }
  1848.  
  1849.  
  1850.  
  1851.   const cleanContext = async (win) => {
  1852.     const waitFn = requestAnimationFrame; // shall have been binded to window
  1853.     try {
  1854.       let mx = 16; // MAX TRIAL
  1855.       const frameId = 'vanillajs-iframe-v1';
  1856.       /** @type {HTMLIFrameElement | null} */
  1857.       let frame = document.getElementById(frameId);
  1858.       let removeIframeFn = null;
  1859.       if (!frame) {
  1860.         frame = document.createElement('iframe');
  1861.         frame.id = frameId;
  1862.         const blobURL = typeof webkitCancelAnimationFrame === 'function' ? (frame.src = URL.createObjectURL(new Blob([], { type: 'text/html' }))) : null; // avoid Brave Crash
  1863.         frame.sandbox = 'allow-same-origin'; // script cannot be run inside iframe but API can be obtained from iframe
  1864.         let n = document.createElement('noscript'); // wrap into NOSCRPIT to avoid reflow (layouting)
  1865.         n.appendChild(frame);
  1866.         while (!document.documentElement && mx-- > 0) await new Promise(waitFn); // requestAnimationFrame here could get modified by YouTube engine
  1867.         const root = document.documentElement;
  1868.         root.appendChild(n); // throw error if root is null due to exceeding MAX TRIAL
  1869.         if (blobURL) Promise.resolve().then(() => URL.revokeObjectURL(blobURL));
  1870.  
  1871.         removeIframeFn = (setTimeout) => {
  1872.           const removeIframeOnDocumentReady = (e) => {
  1873.             e && win.removeEventListener("DOMContentLoaded", removeIframeOnDocumentReady, false);
  1874.             e = n;
  1875.             n = win = removeIframeFn = 0;
  1876.             setTimeout ? setTimeout(() => e.remove(), 200) : e.remove();
  1877.           }
  1878.           if (!setTimeout || document.readyState !== 'loading') {
  1879.             removeIframeOnDocumentReady();
  1880.           } else {
  1881.             win.addEventListener("DOMContentLoaded", removeIframeOnDocumentReady, false);
  1882.           }
  1883.         }
  1884.       }
  1885.       while (!frame.contentWindow && mx-- > 0) await new Promise(waitFn);
  1886.       const fc = frame.contentWindow;
  1887.       if (!fc) throw "window is not found."; // throw error if root is null due to exceeding MAX TRIAL
  1888.       try {
  1889.         const { requestAnimationFrame, setTimeout, cancelAnimationFrame, setInterval, clearInterval, getComputedStyle } = fc;
  1890.         const res = { requestAnimationFrame, setTimeout, cancelAnimationFrame, setInterval, clearInterval, getComputedStyle };
  1891.         for (let k in res) res[k] = res[k].bind(win); // necessary
  1892.         if (removeIframeFn) Promise.resolve(res.setTimeout).then(removeIframeFn);
  1893.  
  1894.         /** @type {HTMLElement} */
  1895.         const HTMLElementProto = fc.HTMLElement.prototype;
  1896.         /** @type {EventTarget} */
  1897.         const EventTargetProto = fc.EventTarget.prototype;
  1898.         // jsonParseFix = {
  1899.         //   _JSON: fc.JSON, _parse: fc.JSON.parse
  1900.         // }
  1901.         return {
  1902.           ...res,
  1903.           animate: HTMLElementProto.animate,
  1904.           addEventListener: EventTargetProto.addEventListener,
  1905.           removeEventListener: EventTargetProto.removeEventListener
  1906.         };
  1907.       } catch (e) {
  1908.         if (removeIframeFn) removeIframeFn();
  1909.         return null;
  1910.       }
  1911.     } catch (e) {
  1912.       console.warn(e);
  1913.       return null;
  1914.     }
  1915.   };
  1916.  
  1917.   cleanContext(win).then(__CONTEXT__ => {
  1918.     if (!__CONTEXT__) return null;
  1919.  
  1920.     const { requestAnimationFrame, setTimeout, cancelAnimationFrame, setInterval, clearInterval, animate, getComputedStyle, addEventListener, removeEventListener } = __CONTEXT__;
  1921.  
  1922.     const wmComputedStyle = new WeakMap();
  1923.     const getComputedStyleCached = (elem) => {
  1924.       let cs = wmComputedStyle.get(elem);
  1925.       if (!cs) {
  1926.         cs = getComputedStyle(elem);
  1927.         wmComputedStyle.set(elem, cs);
  1928.       }
  1929.       return cs;
  1930.     }
  1931.  
  1932.  
  1933.     const isGPUAccelerationAvailable = (() => {
  1934.       // https://gist.github.com/cvan/042b2448fcecefafbb6a91469484cdf8
  1935.       try {
  1936.         const canvas = document.createElement('canvas');
  1937.         return !!(canvas.getContext('webgl') || canvas.getContext('experimental-webgl'));
  1938.       } catch (e) {
  1939.         return false;
  1940.       }
  1941.     })();
  1942.  
  1943.     const foregroundPromiseFn_noGPU = (() => {
  1944.  
  1945.       if (isGPUAccelerationAvailable) return null;
  1946.  
  1947.       const pd = Object.getOwnPropertyDescriptor(Document.prototype, 'visibilityState');
  1948.       if (!pd || typeof pd.get !== 'function') return null;
  1949.       const pdGet = pd.get;
  1950.  
  1951.       let pr = null;
  1952.  
  1953.       let hState = pdGet.call(document) === 'hidden';
  1954.       // let cid = 0;
  1955.       pureAddEventListener.call(document, 'visibilitychange', (evt) => {
  1956.         const newHState = pdGet.call(document) === 'hidden';
  1957.         if (hState !== newHState) {
  1958.           // if (cid > 0) cid = clearInterval(cid);
  1959.           hState = newHState;
  1960.           if (!hState && pr) pr = pr.resolve();
  1961.         }
  1962.       });
  1963.  
  1964.       // cid = setInterval(() => {
  1965.       //   const newHState = document.visibilityState === 'hidden';
  1966.       //   if (hState !== newHState) {
  1967.       //     hState = newHState;
  1968.       //     if (!hState && pr) pr = pr.resolve();
  1969.       //   }
  1970.       // }, 100);
  1971.  
  1972.  
  1973.       return (() => {
  1974.         if (pr) return pr;
  1975.         const w = ((!hState && setTimeout(() => {
  1976.           if (!hState && pr === w) pr = pr.resolve();
  1977.         })), (pr = new PromiseExternal()));
  1978.         return w;
  1979.       });
  1980.  
  1981.     })();
  1982.  
  1983.     // window.foregroundPromiseFn_noGPU = foregroundPromiseFn_noGPU;
  1984.  
  1985.     let rafPromise = null;
  1986.     const getRafPromise = () => rafPromise || (rafPromise = new Promise(resolve => {
  1987.       requestAnimationFrame(hRes => {
  1988.         rafPromise = null;
  1989.         resolve(hRes);
  1990.       });
  1991.     }));
  1992.     const foregroundPromiseFn = foregroundPromiseFn_noGPU || getRafPromise;
  1993.  
  1994.     const iAFP = foregroundPromiseFn_noGPU ? foregroundPromiseFn_noGPU : typeof IntersectionObserver === 'undefined' ? getRafPromise : (() => {
  1995.  
  1996.       const ioWM = new WeakMap();
  1997.       const ek = Symbol();
  1998.       /** @type {IntersectionObserverCallback} */
  1999.       const ioCb = (entries, observer) => {
  2000.         /** @type {PromiseExternal} */
  2001.         const pr = observer[ek];
  2002.         const resolve = pr.resolve;
  2003.         let target;
  2004.         if (resolve && (target = ((entries ? entries[0] : 0) || 0).target) instanceof Element) {
  2005.           pr.resolve = null;
  2006.           observer.unobserve(target);
  2007.           resolve();
  2008.         }
  2009.       };
  2010.       /**
  2011.        * 
  2012.        * @param {Element} elm 
  2013.        * @returns {Promise<void>}
  2014.        */
  2015.       const iAFP = (elm) => {
  2016.         let io = ioWM.get(elm);
  2017.         if (!io) {
  2018.           io = new IntersectionObserver(ioCb);
  2019.           ioWM.set(elm, io); // strong reference
  2020.         }
  2021.         let pr = io[ek];
  2022.         if (!pr) {
  2023.           pr = io[ek] = new PromiseExternal();
  2024.           io.observe(elm);
  2025.         }
  2026.         return pr;
  2027.       }
  2028.  
  2029.       return iAFP;
  2030.  
  2031.     })();
  2032.  
  2033.     let playerState = null;
  2034.     let _playerState = null;
  2035.     let lastPlayerProgress = null;
  2036.     let relayCount = 0;
  2037.     let playerEventsByIframeRelay = false;
  2038.     let isPlayProgressTriggered = false;
  2039.     let waitForInitialDataCompletion = 0;
  2040.  
  2041.  
  2042.  
  2043.     let aeConstructor = null;
  2044.  
  2045.     // << __openedChanged82 >>
  2046.     let currentMenuPivotWR = null;
  2047.  
  2048.     // << if DO_PARTICIPANT_LIST_HACKS >>
  2049.     const beforeParticipantsMap = new WeakMap();
  2050.     // << end >>
  2051.  
  2052.  
  2053.  
  2054.     // << if onRegistryReadyForDOMOperations >>
  2055.  
  2056.     let dt0 = Date.now() - 2000;
  2057.     const dateNow = () => Date.now() - dt0;
  2058.     // let lastScroll = 0;
  2059.     // let lastLShow = 0;
  2060.     let lastWheel = 0;
  2061.     let lastMouseDown = 0;
  2062.     let lastMouseUp = 0;
  2063.     let currentMouseDown = false;
  2064.     let lastTouchDown = 0;
  2065.     let lastTouchUp = 0;
  2066.     let currentTouchDown = false;
  2067.     let lastUserInteraction = 0;
  2068.  
  2069.     let scrollChatFn = null;
  2070.  
  2071.     let skipDontRender = true; // true first; false by flushActiveItems_
  2072.     let allowDontRender = null;
  2073.  
  2074.     // ---- #items mutation ----
  2075.     let sk35zResolveFn = null;
  2076.     let firstList = true;
  2077.  
  2078.     // << end >>
  2079.  
  2080.     class RAFHub {
  2081.       constructor() {
  2082.         /** @type {number} */
  2083.         this.startAt = 8170;
  2084.         /** @type {number} */
  2085.         this.counter = 0;
  2086.         /** @type {number} */
  2087.         this.rid = 0;
  2088.         /** @type {Map<number, FrameRequestCallback>} */
  2089.         this.funcs = new Map();
  2090.         const funcs = this.funcs;
  2091.         /** @type {FrameRequestCallback} */
  2092.         this.bCallback = this.mCallback.bind(this);
  2093.         this.pClear = () => funcs.clear();
  2094.         this.keepRAF = false;
  2095.       }
  2096.       /** @param {DOMHighResTimeStamp} highResTime */
  2097.       mCallback(highResTime) {
  2098.         this.rid = 0;
  2099.         Promise.resolve().then(this.pClear);
  2100.         this.funcs.forEach(func => Promise.resolve(highResTime).then(func).catch(console.warn));
  2101.       }
  2102.       /** @param {FrameRequestCallback} f */
  2103.       request(f) {
  2104.         if (this.counter > 1e9) this.counter = 9;
  2105.         let cid = this.startAt + (++this.counter);
  2106.         this.funcs.set(cid, f);
  2107.         if (this.rid === 0) this.rid = requestAnimationFrame(this.bCallback);
  2108.         return cid;
  2109.       }
  2110.       /** @param {number} cid */
  2111.       cancel(cid) {
  2112.         cid = +cid;
  2113.         if (cid > 0) {
  2114.           if (cid <= this.startAt) {
  2115.             return cancelAnimationFrame(cid);
  2116.           }
  2117.           if (this.rid > 0) {
  2118.             this.funcs.delete(cid);
  2119.             if (this.funcs.size === 0 && !this.keepRAF) {
  2120.               cancelAnimationFrame(this.rid);
  2121.               this.rid = 0;
  2122.             }
  2123.           }
  2124.         }
  2125.       }
  2126.     }
  2127.  
  2128.     function basePrefetching() {
  2129.  
  2130.       new Promise(resolve => {
  2131.  
  2132.         if (document.readyState !== 'loading') {
  2133.           resolve();
  2134.         } else {
  2135.           win.addEventListener("DOMContentLoaded", resolve, false);
  2136.         }
  2137.  
  2138.       }).then(() => {
  2139.         const hostL1 = [
  2140.           'https://www.youtube.com', 'https://googlevideo.com',
  2141.           'https://googleapis.com', 'https://accounts.youtube.com',
  2142.           'https://www.gstatic.com', 'https://ggpht.com',
  2143.           'https://yt3.ggpht.com', 'https://yt4.ggpht.com'
  2144.         ];
  2145.  
  2146.         const hostL2 = [
  2147.           'https://youtube.com',
  2148.           'https://fonts.googleapis.com', 'https://fonts.gstatic.com'
  2149.         ];
  2150.  
  2151.         let link = null;
  2152.  
  2153.         function kn() {
  2154.  
  2155.           link = document.createElement('link');
  2156.           if (link.relList && link.relList.supports) {
  2157.             kptPF = (link.relList.supports('dns-prefetch') ? 1 : 0) + (link.relList.supports('preconnect') ? 2 : 0) + (link.relList.supports('prefetch') ? 4 : 0) + (link.relList.supports('subresource') ? 8 : 0) + (link.relList.supports('preload') ? 16 : 0)
  2158.           } else {
  2159.             kptPF = 0;
  2160.           }
  2161.  
  2162.           groupCollapsed("YouTube Super Fast Chat", " | PREFETCH SUPPORTS");
  2163.           if (ENABLE_BASE_PREFETCHING) console.log('dns-prefetch', (kptPF & 1) ? 'OK' : 'NG');
  2164.           if (ENABLE_BASE_PREFETCHING) console.log('preconnect', (kptPF & 2) ? 'OK' : 'NG');
  2165.           if (ENABLE_PRELOAD_THUMBNAIL) console.log('prefetch', (kptPF & 4) ? 'OK' : 'NG');
  2166.           // console.log('subresource', (kptPF & 8) ? 'OK' : 'NG');
  2167.           if (ENABLE_PRELOAD_THUMBNAIL) console.log('preload', (kptPF & 16) ? 'OK' : 'NG');
  2168.           console.groupEnd();
  2169.  
  2170.         }
  2171.  
  2172.         for (const h of hostL1) {
  2173.  
  2174.           if (kptPF === null) kn();
  2175.           if (ENABLE_BASE_PREFETCHING) {
  2176.             // if (kptPF & 1) {
  2177.             //   linker(link, 'dns-prefetch', h);
  2178.             //   link = null;
  2179.             // }
  2180.             if (kptPF & 2) {
  2181.               linker(link, 'preconnect', h);
  2182.               link = null;
  2183.             }
  2184.           }
  2185.         }
  2186.  
  2187.         for (const h of hostL2) {
  2188.           if (kptPF === null) kn();
  2189.           if (ENABLE_BASE_PREFETCHING) {
  2190.             if (kptPF & 1) {
  2191.               linker(link, 'dns-prefetch', h);
  2192.               link = null;
  2193.             }
  2194.           }
  2195.         }
  2196.  
  2197.       })
  2198.  
  2199.  
  2200.     }
  2201.  
  2202.     if (DO_LINK_PREFETCH) basePrefetching();
  2203.  
  2204.     const { notifyPath7081 } = (() => {
  2205.       // DO_PARTICIPANT_LIST_HACKS
  2206.  
  2207.       const mutexParticipants = new Mutex();
  2208.  
  2209.       let uvid = 0;
  2210.       let r95dm = 0;
  2211.       let c95dm = -1;
  2212.  
  2213.       const foundMap = (base, content) => {
  2214.         /*
  2215.           let lastSearch = 0;
  2216.           let founds = base.map(baseEntry => {
  2217.             let search = content.indexOf(baseEntry, lastSearch);
  2218.             if (search < 0) return false;
  2219.             lastSearch = search + 1;
  2220.             return true;
  2221.           });
  2222.           return founds;
  2223.         */
  2224.         const contentSet = new Set(content);
  2225.         return base.map(baseEntry => contentSet.has(baseEntry));
  2226.  
  2227.       }
  2228.  
  2229.  
  2230.  
  2231.       let participantsForSpliceWR = null;
  2232.  
  2233.       class IndexSpliceEntry {
  2234.         /**
  2235.          *
  2236.          * @param {number} _index
  2237.          * @param {number} _addedCount
  2238.          * @param {any[]} _removed
  2239.          */
  2240.         constructor(_index, _addedCount, _removed) {
  2241.           this.index = _index;
  2242.           this.addedCount = _addedCount;
  2243.           this.removed = _removed;
  2244.         }
  2245.         get __proxy312__() {
  2246.           return 1
  2247.         }
  2248.         get type() {
  2249.           return 'splice'
  2250.         }
  2251.         get object() {
  2252.           return kRef(participantsForSpliceWR); // avoid memory leakage
  2253.         }
  2254.       }
  2255.  
  2256.       const spliceIndicesFunc = (beforeParticipants, participants, idsBefore, idsAfter) => {
  2257.  
  2258.         let foundsForAfter = foundMap(idsAfter, idsBefore);
  2259.         let foundsForBefore = foundMap(idsBefore, idsAfter);
  2260.  
  2261.         const nAfter = foundsForAfter.length;
  2262.         const nBefore = foundsForBefore.length;
  2263.  
  2264.         const indexSplices = [];
  2265.         const contentUpdates = [];
  2266.         participantsForSpliceWR = null;
  2267.         for (let i = 0, j = 0; i < nBefore || j < nAfter;) {
  2268.           if (beforeParticipants[i] === participants[j]) {
  2269.             i++; j++;
  2270.           } else if (idsBefore[i] === idsAfter[j]) {
  2271.             // content changed
  2272.             contentUpdates.push({ indexI: i, indexJ: j })
  2273.             i++; j++;
  2274.           } else {
  2275.             let addedCount = 0;
  2276.             for (let q = j; q < nAfter; q++) {
  2277.               if (foundsForAfter[q] === false) addedCount++;
  2278.               else break;
  2279.             }
  2280.             let removedCount = 0;
  2281.             for (let q = i; q < nBefore; q++) {
  2282.               if (foundsForBefore[q] === false) removedCount++;
  2283.               else break;
  2284.             }
  2285.             if (!addedCount && !removedCount) {
  2286.               throw 'ERROR(0xFF32): spliceIndicesFunc';
  2287.             }
  2288.             const entry = new IndexSpliceEntry(
  2289.               j,
  2290.               addedCount,
  2291.               removedCount >= 1 ? beforeParticipants.slice(i, i + removedCount) : []
  2292.             );
  2293.             indexSplices.push(entry);
  2294.             i += removedCount;
  2295.             j += addedCount;
  2296.           }
  2297.         }
  2298.         foundsForBefore = null;
  2299.         foundsForAfter = null;
  2300.         idsBefore = null;
  2301.         idsAfter = null;
  2302.         beforeParticipants = null;
  2303.         participantsForSpliceWR = indexSplices.length > 0 ? mWeakRef(participants) : null;
  2304.         participants = null;
  2305.         return { indexSplices, contentUpdates };
  2306.  
  2307.       }
  2308.  
  2309.       /*
  2310.  
  2311.       customElements.get("yt-live-chat-participant-renderer").prototype.notifyPath=function(){  console.log(123);  console.log(new Error().stack)}
  2312.  
  2313.       VM63631:1 Error
  2314.       at customElements.get.notifyPath (<anonymous>:1:122)
  2315.       at e.forwardRendererStamperChanges_ (live_chat_polymer.js:4453:35)
  2316.       at e.rendererStamperApplyChangeRecord_ (live_chat_polymer.js:4451:12)
  2317.       at e.rendererStamperObserver_ (live_chat_polymer.js:4448:149)
  2318.       at Object.pu [as fn] (live_chat_polymer.js:1692:118)
  2319.       at ju (live_chat_polymer.js:1674:217)
  2320.       at a._propertiesChanged (live_chat_polymer.js:1726:122)
  2321.       at b._flushProperties (live_chat_polymer.js:1597:200)
  2322.       at a._invalidateProperties (live_chat_polymer.js:1718:69)
  2323.       at a.notifyPath (live_chat_polymer.js:1741:182)
  2324.  
  2325.       */
  2326.  
  2327.       function convertToIds(participants) {
  2328.         return participants.map(participant => {
  2329.           if (!participant || typeof participant !== 'object') {
  2330.             console.warn('Error(0xFA41): convertToIds', participant);
  2331.             return participant; // just in case
  2332.           }
  2333.           let keys = Object.keys(participant);
  2334.           // liveChatTextMessageRenderer
  2335.           // liveChatParticipantRenderer - livestream channel owner [no authorExternalChannelId]
  2336.           // liveChatPaidMessageRenderer
  2337.           /*
  2338.  
  2339.             'yt-live-chat-participant-renderer' utilizes the following:
  2340.             authorName.simpleText: string
  2341.             authorPhoto.thumbnails: Object{url:string, width:int, height:int} []
  2342.             authorBadges[].liveChatAuthorBadgeRenderer.icon.iconType: string
  2343.             authorBadges[].liveChatAuthorBadgeRenderer.tooltip: string
  2344.             authorBadges[].liveChatAuthorBadgeRenderer.accessibility.accessibilityData: Object{label:string}
  2345.  
  2346.           */
  2347.           if (keys.length !== 1) {
  2348.             console.warn('Error(0xFA42): convertToIds', participant);
  2349.             return participant; // just in case
  2350.           }
  2351.           let key = keys[0];
  2352.           let renderer = (participant[key] || 0);
  2353.           let authorName = (renderer.authorName || 0);
  2354.           let text = `${authorName.simpleText || authorName.text}`
  2355.           let res = participant; // fallback if it is not a vaild entry
  2356.           if (typeof text !== 'string') {
  2357.             console.warn('Error(0xFA53): convertToIds', participant);
  2358.           } else {
  2359.             text = `${renderer.authorExternalChannelId || 'null'}|${text || ''}`;
  2360.             if (text.length > 1) res = text;
  2361.           }
  2362.           return res;
  2363.           // return renderer?`${renderer.id}|${renderer.authorExternalChannelId}`: '';
  2364.           // note: renderer.id will be changed if the user typed something to trigger the update of the participants' record.
  2365.         });
  2366.       }
  2367.  
  2368.       const checkChangeToParticipantRendererContent = CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT ? (p1, p2) => {
  2369.         // just update when content is changed.
  2370.         if (p1.authorName !== p2.authorName) return true;
  2371.         if (p1.authorPhoto !== p2.authorPhoto) return true;
  2372.         if (p1.authorBadges !== p2.authorBadges) return true;
  2373.         return false;
  2374.       } : (p1, p2) => {
  2375.         // keep integrity all the time.
  2376.         return p1 !== p2; // always true
  2377.       }
  2378.  
  2379.       function notifyPath7081(path) { // cnt "yt-live-chat-participant-list-renderer"
  2380.  
  2381.         if (PARTICIPANT_UPDATE_ONLY_ONLY_IF_MODIFICATION_DETECTED) {
  2382.           if (path !== "participantsManager.participants") {
  2383.             return this.__notifyPath5036__.apply(this, arguments);
  2384.           }
  2385.           if (c95dm === r95dm) return;
  2386.         } else {
  2387.           const stack = new Error().stack;
  2388.           if (path !== "participantsManager.participants" || stack.indexOf('.onParticipantsChanged') < 0) {
  2389.             return this.__notifyPath5036__.apply(this, arguments);
  2390.           }
  2391.         }
  2392.  
  2393.         if (uvid > 1e8) uvid = uvid % 100;
  2394.         let tid = ++uvid;
  2395.  
  2396.         const cnt = this; // "yt-live-chat-participant-list-renderer"
  2397.         mutexParticipants.lockWith(lockResolve => {
  2398.  
  2399.           const participants00 = cnt.participantsManager.participants;
  2400.  
  2401.           if (tid !== uvid || typeof (participants00 || 0).splice !== 'function') {
  2402.             lockResolve();
  2403.             return;
  2404.           }
  2405.  
  2406.           let doUpdate = false;
  2407.  
  2408.           if (PARTICIPANT_UPDATE_ONLY_ONLY_IF_MODIFICATION_DETECTED) {
  2409.  
  2410.             if (!participants00.r94dm) {
  2411.               participants00.r94dm = 1;
  2412.               if (++r95dm > 1e9) r95dm = 9;
  2413.               participants00.push = function () {
  2414.                 if (++r95dm > 1e9) r95dm = 9;
  2415.                 return Array.prototype.push.apply(this, arguments);
  2416.               }
  2417.               participants00.pop = function () {
  2418.                 if (++r95dm > 1e9) r95dm = 9;
  2419.                 return Array.prototype.pop.apply(this, arguments);
  2420.               }
  2421.               participants00.shift = function () {
  2422.                 if (++r95dm > 1e9) r95dm = 9;
  2423.                 return Array.prototype.shift.apply(this, arguments);
  2424.               }
  2425.               participants00.unshift = function () {
  2426.                 if (++r95dm > 1e9) r95dm = 9;
  2427.                 return Array.prototype.unshift.apply(this, arguments);
  2428.               }
  2429.               participants00.splice = function () {
  2430.                 if (++r95dm > 1e9) r95dm = 9;
  2431.                 return Array.prototype.splice.apply(this, arguments);
  2432.               }
  2433.               participants00.sort = function () {
  2434.                 if (++r95dm > 1e9) r95dm = 9;
  2435.                 return Array.prototype.sort.apply(this, arguments);
  2436.               }
  2437.               participants00.reverse = function () {
  2438.                 if (++r95dm > 1e9) r95dm = 9;
  2439.                 return Array.prototype.reverse.apply(this, arguments);
  2440.               }
  2441.             }
  2442.  
  2443.             if (c95dm !== r95dm) {
  2444.               c95dm = r95dm;
  2445.               doUpdate = true;
  2446.             }
  2447.  
  2448.           } else {
  2449.             doUpdate = true;
  2450.           }
  2451.  
  2452.           if (!doUpdate) {
  2453.             lockResolve();
  2454.             return;
  2455.           }
  2456.  
  2457.           const participants = participants00.slice(0);
  2458.           const beforeParticipants = beforeParticipantsMap.get(cnt) || [];
  2459.           beforeParticipantsMap.set(cnt, participants);
  2460.  
  2461.           const resPromise = (async () => {
  2462.  
  2463.             if (beforeParticipants.length === 0) {
  2464.               // not error
  2465.               return 0;
  2466.             }
  2467.  
  2468.             let countOfElements = cnt.__getAllParticipantsDOMRenderedLength__()
  2469.  
  2470.             // console.log(participants.length, doms.length) // different if no requestAnimationFrame
  2471.             if (beforeParticipants.length !== countOfElements) {
  2472.               // there is somewrong for the cache. - sometimes happen
  2473.               return 0;
  2474.             }
  2475.  
  2476.             const idsBefore = convertToIds(beforeParticipants);
  2477.             const idsAfter = convertToIds(participants);
  2478.  
  2479.             let { indexSplices, contentUpdates } = spliceIndicesFunc(beforeParticipants, participants, idsBefore, idsAfter);
  2480.  
  2481.             let res = 1; // default 1 for no update
  2482.  
  2483.             if (indexSplices.length >= 1) {
  2484.  
  2485.  
  2486.               // let p2 =  participants.slice(indexSplices[0].index, indexSplices[0].index+indexSplices[0].addedCount);
  2487.               // let p1 = indexSplices[0].removed;
  2488.               // console.log(indexSplices.length, indexSplices ,p1,p2,  convertToIds(p1),convertToIds(p2))
  2489.  
  2490.               /* folllow
  2491.                   a.notifyPath(c + ".splices", d);
  2492.                   a.notifyPath(c + ".length", b.length);
  2493.               */
  2494.               // stampDomArraySplices_
  2495.  
  2496.  
  2497.               await new Promise(resolve => {
  2498.                 cnt.resolveForDOMRendering781 = resolve;
  2499.  
  2500.                 cnt.__notifyPath5036__("participantsManager.participants.splices", {
  2501.                   indexSplices
  2502.                 });
  2503.                 indexSplices = null;
  2504.                 participantsForSpliceWR = null;
  2505.                 cnt.__notifyPath5036__("participantsManager.participants.length",
  2506.                   participants.length
  2507.                 );
  2508.  
  2509.               });
  2510.  
  2511.               // play safe for the change of 'length'
  2512.               if (typeof nextBrowserTick !== 'function') {
  2513.                 await Promise.resolve(0);
  2514.               } else {
  2515.                 await new Promise(resolve => nextBrowserTick(resolve)).then();
  2516.               }
  2517.  
  2518.               countOfElements = cnt.__getAllParticipantsDOMRenderedLength__();
  2519.  
  2520.               const wrongSize = participants.length !== countOfElements
  2521.               if (wrongSize) {
  2522.                 console.warn("ERROR(0xE2C3): notifyPath7081", beforeParticipants.length, participants.length, doms.length)
  2523.                 return 0;
  2524.               }
  2525.  
  2526.               res = 2 | 4;
  2527.  
  2528.             } else {
  2529.  
  2530.               indexSplices = null;
  2531.               participantsForSpliceWR = null;
  2532.  
  2533.               if (participants.length !== countOfElements) {
  2534.                 // other unhandled cases
  2535.                 return 0;
  2536.               }
  2537.  
  2538.             }
  2539.  
  2540.             // participants.length === countOfElements before contentUpdates
  2541.             if (contentUpdates.length >= 1) {
  2542.               for (const contentUpdate of contentUpdates) {
  2543.                 let isChanged = checkChangeToParticipantRendererContent(beforeParticipants[contentUpdate.indexI], participants[contentUpdate.indexJ]);
  2544.                 if (isChanged) {
  2545.                   cnt.__notifyPath5036__(`participantsManager.participants[${contentUpdate.indexJ}]`);
  2546.                   res |= 4 | 8;
  2547.                 }
  2548.               }
  2549.             }
  2550.             contentUpdates = null;
  2551.  
  2552.             return res;
  2553.  
  2554.  
  2555.           })();
  2556.  
  2557.  
  2558.           resPromise.then(resValue => {
  2559.  
  2560.             const isLogRequired = SHOW_PARTICIPANT_CHANGES_IN_CONSOLE && ((resValue === 0) || ((resValue & 4) === 4));
  2561.             isLogRequired && groupCollapsed("Participant List Change", `tid = ${tid}; res = ${resValue}`);
  2562.             if (resValue === 0) {
  2563.               new Promise(resolve => {
  2564.                 cnt.resolveForDOMRendering781 = resolve;
  2565.                 isLogRequired && console.log("Full Refresh begins");
  2566.                 cnt.__notifyPath5036__("participantsManager.participants"); // full refresh
  2567.               }).then(() => {
  2568.                 isLogRequired && console.log("Full Refresh ends");
  2569.                 console.groupEnd();
  2570.               }).then(lockResolve);
  2571.               return;
  2572.             }
  2573.  
  2574.             const delayLockResolve = (resValue & 4) === 4;
  2575.  
  2576.             if (delayLockResolve) {
  2577.               isLogRequired && console.log(`Number of participants (before): ${beforeParticipants.length}`);
  2578.               isLogRequired && console.log(`Number of participants (after): ${participants.length}`);
  2579.               isLogRequired && console.log(`Total number of rendered participants: ${cnt.__getAllParticipantsDOMRenderedLength__()}`);
  2580.               isLogRequired && console.log(`Participant Renderer Content Updated: ${(resValue & 8) === 8}`);
  2581.               isLogRequired && console.groupEnd();
  2582.               // requestAnimationFrame is required to avoid particiant update during DOM changing (stampDomArraySplices_)
  2583.               // mutex lock with requestAnimationFrame can also disable participants update in background
  2584.               requestAnimationFrame(lockResolve);
  2585.             } else {
  2586.               lockResolve();
  2587.             }
  2588.  
  2589.           });
  2590.  
  2591.         });
  2592.  
  2593.       }
  2594.  
  2595.       return { notifyPath7081 };
  2596.  
  2597.     })();
  2598.  
  2599.     const whenDefinedMultiple = async (tags) => {
  2600.  
  2601.       const sTags = [...new Set(tags)];
  2602.       const len = sTags.length;
  2603.  
  2604.       const pTags = new Array(len);
  2605.       for (let i = 0; i < len; i++) {
  2606.         pTags[i] = customElements.whenDefined(sTags[i]);
  2607.       }
  2608.  
  2609.       await Promise.all(pTags);
  2610.       pTags.length = 0;
  2611.  
  2612.       return sTags;
  2613.  
  2614.     }
  2615.  
  2616.     const onRegistryReadyForDataManipulation = () => {
  2617.  
  2618.       function dummy5035(a, b, c) { }
  2619.       function dummy411(a, b, c) { }
  2620.  
  2621.  
  2622.  
  2623.       customElements.whenDefined("yt-live-chat-participant-list-renderer").then(() => {
  2624.  
  2625.         if (!DO_PARTICIPANT_LIST_HACKS) return;
  2626.  
  2627.         const tag = "yt-live-chat-participant-list-renderer";
  2628.         const cProto = getProto(document.createElement(tag));
  2629.         if (!cProto || typeof cProto.attached !== 'function') {
  2630.           // for _registered, proto.attached shall exist when the element is defined.
  2631.           // for controller extraction, attached shall exist when instance creates.
  2632.           console.warn(`proto.attached for ${tag} is unavailable.`);
  2633.           return;
  2634.         }
  2635.  
  2636.  
  2637.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-participant-list-renderer hacks");
  2638.  
  2639.         const fgsArr = ['kevlar_tuner_should_test_maintain_stable_list', 'kevlar_should_maintain_stable_list', 'kevlar_tuner_should_test_reuse_components', 'kevlar_tuner_should_reuse_components'];
  2640.         const fgs = {};
  2641.         for (const key of fgsArr) fgs[key] = undefined;
  2642.  
  2643.         try {
  2644.           const EXPERIMENT_FLAGS = ytcfg.data_.EXPERIMENT_FLAGS;
  2645.           for (const key of fgsArr) fgs[key] = EXPERIMENT_FLAGS[key];
  2646.         } catch (e) { }
  2647.         console.log(`EXPERIMENT_FLAGS: ${JSON.stringify(fgs, null, 2)}`);
  2648.  
  2649.         const canDoReplacement = (() => {
  2650.           if (typeof cProto.__notifyPath5035__ === 'function' && cProto.__notifyPath5035__.name !== 'dummy5035') {
  2651.             console.warn('YouTube Live Chat Tamer is running.');
  2652.             return;
  2653.           }
  2654.  
  2655.           if (typeof cProto.__attached411__ === 'function' && cProto.__attached411__.name !== 'dummy411') {
  2656.             console.warn('YouTube Live Chat Tamer is running.');
  2657.             return;
  2658.           }
  2659.  
  2660.           cProto.__notifyPath5035__ = dummy5035 // just to against Live Chat Tamer
  2661.           cProto.__attached411__ = dummy411 // just to against Live Chat Tamer
  2662.  
  2663.           if (typeof cProto.flushRenderStamperComponentBindings_ !== 'function' || cProto.flushRenderStamperComponentBindings_.length !== 0) {
  2664.             console.warn("ERROR(0xE355): cProto.flushRenderStamperComponentBindings_ not found");
  2665.             return;
  2666.           }
  2667.  
  2668.           if (typeof cProto.flushRenderStamperComponentBindings66_ === 'function') {
  2669.             console.warn("ERROR(0xE356): cProto.flushRenderStamperComponentBindings66_");
  2670.             return;
  2671.           }
  2672.  
  2673.           if (typeof cProto.__getAllParticipantsDOMRenderedLength__ === 'function') {
  2674.             console.warn("ERROR(0xE357): cProto.__getAllParticipantsDOMRenderedLength__");
  2675.             return;
  2676.           }
  2677.           return true;
  2678.         })();
  2679.  
  2680.         console.log(`Data Manipulation Boost = ${canDoReplacement}`);
  2681.  
  2682.         assertor(() => fnIntegrity(cProto.attached, '0.32.22')) // just warning
  2683.         if (typeof cProto.flushRenderStamperComponentBindings_ === 'function') {
  2684.           const fiRSCB = fnIntegrity(cProto.flushRenderStamperComponentBindings_);
  2685.           const s = fiRSCB.split('.');
  2686.           // Feb 2024: 0.403.247 => NG
  2687.           // if (s[0] === '0' && +s[1] > 381 && +s[1] < 391 && +s[2] > 228 && +s[2] < 238) {
  2688.           //   console.log(`flushRenderStamperComponentBindings_ ### ${fiRSCB} ### - OK`);
  2689.           // } else {
  2690.           //   console.log(`flushRenderStamperComponentBindings_ ### ${fiRSCB} ### - NG`);
  2691.           // }
  2692.           console.log(`flushRenderStamperComponentBindings_ ### ${fiRSCB} ###`);
  2693.         } else {
  2694.           console.log("flushRenderStamperComponentBindings_ - not found");
  2695.         }
  2696.         // assertor(() => fnIntegrity(cProto.flushRenderStamperComponentBindings_, '0.386.233')) // just warning
  2697.  
  2698.         if (typeof cProto.flushRenderStamperComponentBindings_ === 'function') {
  2699.           cProto.flushRenderStamperComponentBindings66_ = cProto.flushRenderStamperComponentBindings_;
  2700.           cProto.flushRenderStamperComponentBindings_ = function () {
  2701.             // console.log('flushRenderStamperComponentBindings_')
  2702.             this.flushRenderStamperComponentBindings66_();
  2703.             if (this.resolveForDOMRendering781) {
  2704.               this.resolveForDOMRendering781();
  2705.               this.resolveForDOMRendering781 = null;
  2706.             }
  2707.           };
  2708.         }
  2709.  
  2710.         cProto.__getAllParticipantsDOMRenderedLength__ = function () {
  2711.           const container = ((this || 0).$ || 0).participants;
  2712.           if (!container) return 0;
  2713.           return HTMLElement.prototype.querySelectorAll.call(container, 'yt-live-chat-participant-renderer').length;
  2714.         }
  2715.  
  2716.         const onPageElements = [...document.querySelectorAll('yt-live-chat-participant-list-renderer:not(.n9fJ3)')];
  2717.  
  2718.         cProto.__attached412__ = cProto.attached;
  2719.         const fpPList = function (hostElement) {
  2720.           const cnt = insp(hostElement);
  2721.           if (beforeParticipantsMap.has(cnt)) return;
  2722.           hostElement.classList.add('n9fJ3');
  2723.  
  2724.           assertor(() => (cnt.__dataEnabled === true && cnt.__dataReady === true));
  2725.           if (typeof cnt.notifyPath !== 'function' || typeof cnt.__notifyPath5036__ !== 'undefined') {
  2726.             console.warn("ERROR(0xE318): yt-live-chat-participant-list-renderer")
  2727.             return;
  2728.           }
  2729.  
  2730.           groupCollapsed("Participant List attached", "");
  2731.           // cnt.$.participants.appendChild = cnt.$.participants.__shady_native_appendChild =  function(){
  2732.           //   console.log(123, 'appendChild');
  2733.           //   return HTMLElement.prototype.appendChild.apply(this, arguments)
  2734.           // }
  2735.  
  2736.           // cnt.$.participants.insertBefore =cnt.$.participants.__shady_native_insertBefore =  function(){
  2737.           //   console.log(123, 'insertBefore');
  2738.           //   return HTMLElement.prototype.insertBefore.apply(this, arguments)
  2739.           // }
  2740.  
  2741.           cnt.__notifyPath5036__ = cnt.notifyPath
  2742.           const participants = ((cnt.participantsManager || 0).participants || 0);
  2743.           assertor(() => (participants.length > -1 && typeof participants.slice === 'function'));
  2744.           console.log(`initial number of participants: ${participants.length}`);
  2745.           const newParticipants = (participants.length >= 1 && typeof participants.slice === 'function') ? participants.slice(0) : [];
  2746.           beforeParticipantsMap.set(cnt, newParticipants);
  2747.           cnt.notifyPath = notifyPath7081;
  2748.           console.log(`CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT = ${CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT}`);
  2749.           console.groupEnd();
  2750.         }
  2751.         cProto.attached = function () {
  2752.           fpPList(this.hostElement || this);
  2753.           this.__attached412__.apply(this, arguments);
  2754.         };
  2755.  
  2756.  
  2757.         if (ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST) {
  2758.  
  2759.           /** @type {boolean | (()=>boolean)} */
  2760.           let toUseMaintainStableList = USE_MAINTAIN_STABLE_LIST_ONLY_WHEN_KS_FLAG_IS_SET ? (() => ytcfg.data_.EXPERIMENT_FLAGS.kevlar_should_maintain_stable_list === true) : true;
  2761.           if (typeof cProto.stampDomArray_ === 'function' && cProto.stampDomArray_.length === 6 && !cProto.stampDomArray_.nIegT && !cProto.stampDomArray66_) {
  2762.  
  2763.             let lastMessageDate = 0;
  2764.             cProto.stampDomArray66_ = cProto.stampDomArray_;
  2765.  
  2766.             cProto.stampDomArray_ = function (...args) {
  2767.               if (args[0] && args[0].length > 0 && args[1] === "participants" && args[2] && args[3] === true && !args[5]) {
  2768.                 if (typeof toUseMaintainStableList === 'function') {
  2769.                   toUseMaintainStableList = toUseMaintainStableList();
  2770.                 }
  2771.                 args[5] = toUseMaintainStableList;
  2772.                 let currentDate = Date.now();
  2773.                 if (currentDate - lastMessageDate > 440) {
  2774.                   lastMessageDate = currentDate;
  2775.                   console.log('maintain_stable_list for participants list', toUseMaintainStableList);
  2776.                 }
  2777.               }
  2778.               return this.stampDomArray66_.apply(this, args);
  2779.             }
  2780.  
  2781.             cProto.stampDomArray_.nIegT = 1;
  2782.  
  2783.           }
  2784.           console.log(`ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST - YES`);
  2785.         } else {
  2786.           console.log(`ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST - NO`);
  2787.         }
  2788.  
  2789.         console.groupEnd();
  2790.  
  2791.         if (onPageElements.length >= 1) {
  2792.           for (const s of onPageElements) {
  2793.             if (insp(s).isAttached === true) {
  2794.               fpPList(s);
  2795.             }
  2796.           }
  2797.         }
  2798.  
  2799.       }).catch(console.warn);
  2800.  
  2801.     };
  2802.  
  2803.     if (DO_PARTICIPANT_LIST_HACKS) {
  2804.       promiseForCustomYtElementsReady.then(onRegistryReadyForDataManipulation);
  2805.     }
  2806.  
  2807.  
  2808.  
  2809.     const rafHub = (ENABLE_RAF_HACK_TICKERS || ENABLE_RAF_HACK_DOCKED_MESSAGE || ENABLE_RAF_HACK_INPUT_RENDERER || ENABLE_RAF_HACK_EMOJI_PICKER) ? new RAFHub() : null;
  2810.  
  2811.  
  2812.     const fixChildrenIssue = !!fixChildrenIssue801;
  2813.     if (fixChildrenIssue && typeof Object.getOwnPropertyDescriptor === 'function' && typeof Proxy !== 'undefined') {
  2814.       const divProto = HTMLDivElement.prototype;
  2815.       const polymerControllerSetData3 = function (c, d, e) {
  2816.         return insp(this).set(c, d, e);
  2817.       }
  2818.       const polymerControllerSetData2 = function (c, d) {
  2819.         return insp(this).set(c, d);
  2820.       }
  2821.       const dummyFn = function () {
  2822.         console.log('dummyFn', ...arguments);
  2823.       };
  2824.  
  2825.       const wm44 = new Map();
  2826.       function unPolymerSet(elem) {
  2827.         const is = elem.is;
  2828.         if (is && !elem.set) {
  2829.           let rt = wm44.get(is);
  2830.           if (!rt) {
  2831.             rt = 1;
  2832.             const cnt = insp(elem);
  2833.             if (cnt !== elem && cnt && typeof cnt.set === 'function') {
  2834.               const pcSet = cnt.constructor.prototype.set;
  2835.               if (pcSet && typeof pcSet === 'function' && pcSet.length === 3) {
  2836.                 rt = polymerControllerSetData3;
  2837.               } else if (pcSet && typeof pcSet === 'function' && pcSet.length === 2) {
  2838.                 rt = polymerControllerSetData2;
  2839.               }
  2840.             }
  2841.             wm44.set(is, rt);
  2842.           }
  2843.           if (typeof rt === 'function') {
  2844.             elem.set = rt;
  2845.           } else {
  2846.             elem.set = dummyFn;
  2847.           }
  2848.         }
  2849.       }
  2850.       if (!divProto.__children577__ && !divProto.__children578__) {
  2851.  
  2852.         const dp = Object.getOwnPropertyDescriptor(Element.prototype, 'children');
  2853.         const dp2 = Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'children');
  2854.         const dp3 = Object.getOwnPropertyDescriptor(divProto, 'children');
  2855.  
  2856.         if (dp && dp.configurable === true && dp.enumerable === true && typeof dp.get === 'function' && !dp2 && !dp3) {
  2857.  
  2858.           if (divProto instanceof HTMLElement && divProto instanceof Element) {
  2859.  
  2860.             let m = Object.assign({}, dp);
  2861.             divProto.__children577__ = dp.get;
  2862.             divProto.__children578__ = function () {
  2863.               if (this.__children803__) return this.__children803__;
  2864.               if (this.__children801__) {
  2865.                 let arr = [];
  2866.                 for (let elem = this.firstElementChild; elem !== null; elem = elem.nextElementSibling) {
  2867.                   if (elem.is) {
  2868.                     unPolymerSet(elem);
  2869.                     arr.push(elem);
  2870.                   }
  2871.                 }
  2872.                 if (this.__children801__ === 2) this.__children803__ = arr;
  2873.                 return arr;
  2874.               }
  2875.               return 577;
  2876.             };
  2877.             m.get = function () {
  2878.               const r = this.__children578__();
  2879.               if (r !== 577) return r;
  2880.               return this.__children577__();
  2881.             };
  2882.             Object.defineProperty(divProto, 'children', m);
  2883.  
  2884.             console.log('fixChildrenIssue - set OK')
  2885.  
  2886.           }
  2887.         }
  2888.  
  2889.       }
  2890.  
  2891.  
  2892.     }
  2893.  
  2894.  
  2895.     const bnForDelayChatOccurrence = () => {
  2896.  
  2897.       document.addEventListener('animationstart', (evt) => {
  2898.  
  2899.         if (evt.animationName === 'dontRenderAnimation') {
  2900.           evt.target.classList.remove('dont-render');
  2901.           if (scrollChatFn) scrollChatFn();
  2902.         }
  2903.  
  2904.       }, true);
  2905.  
  2906.       const f = (elm) => {
  2907.         if (elm && elm.nodeType === 1) {
  2908.           if (!skipDontRender && allowDontRender === true) {
  2909.             // innerTextFixFn();
  2910.             elm.classList.add('dont-render');
  2911.           }
  2912.         }
  2913.       }
  2914.  
  2915.       Node.prototype.__appendChild931__ = function (a) {
  2916.         a = dr(a);
  2917.         if (this.id === 'items' && this.classList.contains('yt-live-chat-item-list-renderer')) {
  2918.           if (a && a.nodeType === 1) f(a);
  2919.           else if (a instanceof DocumentFragment) {
  2920.             for (let n = a.firstChild; n; n = n.nextSibling) {
  2921.               f(n);
  2922.             }
  2923.           }
  2924.         }
  2925.       }
  2926.  
  2927.       Node.prototype.__appendChild932__ = function () {
  2928.         this.__appendChild931__.apply(this, arguments);
  2929.         return Node.prototype.appendChild.apply(this, arguments);
  2930.       }
  2931.  
  2932.  
  2933.     };
  2934.  
  2935.     const watchUserCSS = () => {
  2936.  
  2937.       // if (!CSS.supports('contain-intrinsic-size', 'auto var(--wsr94)')) return;
  2938.  
  2939.       const getElemFromWR = (nr) => {
  2940.         const n = kRef(nr);
  2941.         if (n && n.isConnected) return n;
  2942.         return null;
  2943.       }
  2944.  
  2945.       const clearContentVisibilitySizing = () => {
  2946.         Promise.resolve().then(() => {
  2947.  
  2948.           const e = document.querySelector('#show-more[disabled]');
  2949.           let btnShowMoreWR = e ? mWeakRef(e) : null;
  2950.  
  2951.           let lastVisibleItemWR = null;
  2952.           for (const elm of document.querySelectorAll('[wSr93]')) {
  2953.             if (elm.getAttribute('wSr93') === 'visible') lastVisibleItemWR = mWeakRef(elm);
  2954.             elm.setAttribute('wSr93', '');
  2955.             // custom CSS property --wsr94 not working when attribute wSr93 removed
  2956.           }
  2957.           foregroundPromiseFn().then(() => {
  2958.             const btnShowMore = getElemFromWR(btnShowMoreWR); btnShowMoreWR = null;
  2959.             if (btnShowMore) btnShowMore.click();
  2960.             else {
  2961.               // would not work if switch it frequently
  2962.               const lastVisibleItem = getElemFromWR(lastVisibleItemWR); lastVisibleItemWR = null;
  2963.               if (lastVisibleItem) {
  2964.  
  2965.                 Promise.resolve()
  2966.                   .then(() => lastVisibleItem.scrollIntoView())
  2967.                   .then(() => lastVisibleItem.scrollIntoView(false))
  2968.                   .then(() => lastVisibleItem.scrollIntoView({ behavior: "instant", block: "end", inline: "nearest" }))
  2969.                   .catch(e => { }) // break the chain when method not callable
  2970.  
  2971.               }
  2972.             }
  2973.           });
  2974.  
  2975.         });
  2976.  
  2977.       }
  2978.  
  2979.       const mutObserver = new MutationObserver((mutations) => {
  2980.         for (const mutation of mutations) {
  2981.           if ((mutation.addedNodes || 0).length >= 1) {
  2982.             for (const addedNode of mutation.addedNodes) {
  2983.               if (addedNode.nodeName === 'STYLE') {
  2984.                 clearContentVisibilitySizing();
  2985.                 return;
  2986.               }
  2987.             }
  2988.           }
  2989.           if ((mutation.removedNodes || 0).length >= 1) {
  2990.             for (const removedNode of mutation.removedNodes) {
  2991.               if (removedNode.nodeName === 'STYLE') {
  2992.                 clearContentVisibilitySizing();
  2993.                 return;
  2994.               }
  2995.             }
  2996.           }
  2997.         }
  2998.       });
  2999.  
  3000.       mutObserver.observe(document.documentElement, {
  3001.         childList: true,
  3002.         subtree: false
  3003.       });
  3004.       mutObserver.observe(document.head, {
  3005.         childList: true,
  3006.         subtree: false
  3007.       });
  3008.       mutObserver.observe(document.body, {
  3009.         childList: true,
  3010.         subtree: false
  3011.       });
  3012.  
  3013.     }
  3014.  
  3015.  
  3016.     class WillChangeController {
  3017.       constructor(itemScroller, willChangeValue) {
  3018.         this.element = itemScroller;
  3019.         this.counter = 0;
  3020.         this.active = false;
  3021.         this.willChangeValue = willChangeValue;
  3022.       }
  3023.  
  3024.       beforeOper() {
  3025.         if (!this.active) {
  3026.           this.active = true;
  3027.           this.element.style.willChange = this.willChangeValue;
  3028.         }
  3029.         this.counter++;
  3030.       }
  3031.  
  3032.       afterOper() {
  3033.         const c = this.counter;
  3034.         foregroundPromiseFn().then(() => {
  3035.           if (c === this.counter) {
  3036.             this.active = false;
  3037.             this.element.style.willChange = '';
  3038.           }
  3039.         });
  3040.       }
  3041.  
  3042.       release() {
  3043.         const element = this.element;
  3044.         this.element = null;
  3045.         this.counter = 1e16;
  3046.         this.active = false;
  3047.         try {
  3048.           element.style.willChange = '';
  3049.         } catch (e) { }
  3050.       }
  3051.  
  3052.     }
  3053.  
  3054.  
  3055.     const skzData = (skz) => skz.data = {
  3056.       "message": {
  3057.         "runs": [
  3058.           {
  3059.             "text": "em2o"
  3060.           },
  3061.           {
  3062.             "emoji": {
  3063.               "emojiId": "cm35z",
  3064.               "shortcuts": [
  3065.                 ":_s:",
  3066.                 ":s:"
  3067.               ],
  3068.               "searchTerms": [
  3069.                 "_s",
  3070.                 "s"
  3071.               ],
  3072.               "image": {
  3073.                 "thumbnails": [
  3074.                   {
  3075.                     "url": dummyImgURL,
  3076.                     "width": 48,
  3077.                     "height": 48
  3078.                   }
  3079.                 ],
  3080.                 "accessibility": {
  3081.                   "accessibilityData": {
  3082.                     "label": "s"
  3083.                   }
  3084.                 }
  3085.               },
  3086.               "isCustomEmoji": true
  3087.             }
  3088.           },
  3089.           {
  3090.             "text": "ji"
  3091.           }
  3092.         ]
  3093.       },
  3094.       "authorName": {
  3095.         "simpleText": "N"
  3096.       },
  3097.       "authorPhoto": {
  3098.         "thumbnails": [
  3099.           {
  3100.             "url": dummyImgURL,
  3101.             "width": 64,
  3102.             "height": 64
  3103.           }
  3104.         ]
  3105.       },
  3106.       "contextMenuEndpoint": {
  3107.         "commandMetadata": {
  3108.           "webCommandMetadata": {
  3109.             "ignoreNavigation": true
  3110.           }
  3111.         },
  3112.         "liveChatItemContextMenuEndpoint": {
  3113.           "params": "123=="
  3114.         }
  3115.       },
  3116.       "id": "sk35z",
  3117.       "timestampUsec": "1232302352350000",
  3118.       "authorBadges": [
  3119.         {
  3120.           "liveChatAuthorBadgeRenderer": {
  3121.             "customThumbnail": {
  3122.               "thumbnails": [
  3123.                 {
  3124.                   "url": dummyImgURL,
  3125.                   "width": 16,
  3126.                   "height": 16
  3127.                 },
  3128.                 {
  3129.                   "url": dummyImgURL,
  3130.                   "width": 32,
  3131.                   "height": 32
  3132.                 }
  3133.               ]
  3134.             },
  3135.             "tooltip": "T",
  3136.             "accessibility": {
  3137.               "accessibilityData": {
  3138.                 "label": "E"
  3139.               }
  3140.             }
  3141.           }
  3142.         }
  3143.       ],
  3144.       "authorExternalChannelId": "A",
  3145.       "contextMenuAccessibility": {
  3146.         "accessibilityData": {
  3147.           "label": "E"
  3148.         }
  3149.       },
  3150.       "timestampText": {
  3151.         "simpleText": "0:43"
  3152.       }
  3153.     };
  3154.  
  3155.  
  3156.  
  3157.     const { lcRendererElm, visObserver } = (() => {
  3158.  
  3159.  
  3160.  
  3161.       let lcRendererWR = null;
  3162.  
  3163.       const lcRendererElm = () => {
  3164.         let lcRenderer = kRef(lcRendererWR);
  3165.         if (!lcRenderer || !lcRenderer.isConnected) {
  3166.           lcRenderer = document.querySelector('yt-live-chat-item-list-renderer.yt-live-chat-renderer');
  3167.           lcRendererWR = lcRenderer ? mWeakRef(lcRenderer) : null;
  3168.         }
  3169.         return lcRenderer;
  3170.       };
  3171.  
  3172.  
  3173.       let hasFirstShowMore = false;
  3174.  
  3175.       const visObserverFn = (entry) => {
  3176.  
  3177.         const target = entry.target;
  3178.         if (!target) return;
  3179.         // if(target.classList.contains('dont-render')) return;
  3180.         let isVisible = entry.isIntersecting === true && entry.intersectionRatio > 0.5;
  3181.         // const h = entry.boundingClientRect.height;
  3182.         /*
  3183.         if (h < 16) { // wrong: 8 (padding/margin); standard: 32; test: 16 or 20
  3184.             // e.g. under fullscreen. the element created but not rendered.
  3185.             target.setAttribute('wSr93', '');
  3186.             return;
  3187.         }
  3188.         */
  3189.         if (isVisible) {
  3190.           // target.style.setProperty('--wsr94', h + 'px');
  3191.           target.setAttribute('wSr93', 'visible');
  3192.           if (nNextElem(target) === null) {
  3193.  
  3194.             // firstVisibleItemDetected = true;
  3195.             /*
  3196.               if (dateNow() - lastScroll < 80) {
  3197.                   lastLShow = 0;
  3198.                   lastScroll = 0;
  3199.                   Promise.resolve().then(clickShowMore);
  3200.               } else {
  3201.                   lastLShow = dateNow();
  3202.               }
  3203.               */
  3204.             // lastLShow = dateNow();
  3205.           } else if (!hasFirstShowMore) { // should more than one item being visible
  3206.             // implement inside visObserver to ensure there is sufficient delay
  3207.             hasFirstShowMore = true;
  3208.             foregroundPromiseFn().then(() => {
  3209.               // foreground page
  3210.               // page visibly ready -> load the latest comments at initial loading
  3211.               const lcRenderer = lcRendererElm();
  3212.               if (lcRenderer) {
  3213.                 if (typeof nextBrowserTick !== 'function') {
  3214.                   insp(lcRenderer).scrollToBottom_();
  3215.                 } else {
  3216.                   nextBrowserTick(() => {
  3217.                     const cnt = insp(lcRenderer);
  3218.                     if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  3219.                     cnt.scrollToBottom_();
  3220.                   });
  3221.                 }
  3222.               }
  3223.             });
  3224.           }
  3225.         }
  3226.         else if (target.getAttribute('wSr93') === 'visible') { // ignore target.getAttribute('wSr93') === '' to avoid wrong sizing
  3227.  
  3228.           // target.style.setProperty('--wsr94', h + 'px');
  3229.           target.setAttribute('wSr93', 'hidden');
  3230.         } // note: might consider 0 < entry.intersectionRatio < 0.5 and target.getAttribute('wSr93') === '' <new last item>
  3231.  
  3232.       }
  3233.  
  3234.  
  3235.  
  3236.       const visObserver = new IntersectionObserver((entries) => {
  3237.  
  3238.         for (const entry of entries) {
  3239.  
  3240.           Promise.resolve(entry).then(visObserverFn);
  3241.  
  3242.         }
  3243.  
  3244.       }, {
  3245.         // root: HTMLElement.prototype.closest.call(m2, '#item-scroller.yt-live-chat-item-list-renderer'), // nullable
  3246.         rootMargin: "0px",
  3247.         threshold: [0.05, 0.95],
  3248.       });
  3249.  
  3250.  
  3251.       return { lcRendererElm, visObserver }
  3252.  
  3253.  
  3254.     })();
  3255.  
  3256.     const { setupMutObserver } = (() => {
  3257.  
  3258.       async function asyncTickerBackgroundOverridedChecker() {
  3259.  
  3260.         try {
  3261.           await promiseForCustomYtElementsReady.then();
  3262.           await customElements.whenDefined('yt-live-chat-text-message-renderer');
  3263.           await new Promise(r => setTimeout(r, 800));
  3264.  
  3265.           if (!hasTimerModified) return;
  3266.           const tickerRenderer = document.querySelector('#ticker yt-live-chat-ticker-renderer.style-scope.yt-live-chat-renderer');
  3267.           if (!tickerRenderer) return;
  3268.  
  3269.           const tickerRendererDollar = indr(tickerRenderer);
  3270.           const items = (tickerRendererDollar || 0).items || 0;
  3271.           if (!items) return;
  3272.           const template = document.createElement('template');
  3273.           template.innerHTML = `<yt-live-chat-ticker-dummy777-item-renderer class="style-scope yt-live-chat-ticker-renderer" whole-message-clickable=""
  3274.             modern="" aria-label="¥1,000" role="button" tabindex="0" id="Chw777" style="width: 94px; overflow: hidden;"
  3275.             dimmed="" [dummy777]>
  3276.             <div id="container" dir="ltr" class="style-scope yt-live-chat-ticker-dummy777-item-renderer"
  3277.               style="--background:linear-gradient(90deg, rgba(1,2,3,1),rgba(1,2,3,1) 7%,rgba(4,0,0,1) 7%,rgba(4,0,0,1));">
  3278.               <div id="content" class="style-scope yt-live-chat-ticker-dummy777-item-renderer" style="color: rgb(255, 255, 255);">
  3279.                 <yt-img-shadow777 id="author-photo" height="24" width="24"
  3280.                   class="style-scope yt-live-chat-ticker-dummy777-item-renderer no-transition"
  3281.                   style="background-color: transparent;" loaded=""><img id="img"
  3282.                     draggable="false" class="style-scope yt-img-shadow" alt="I" height="24" width="24"
  3283.                     src="${dummyImgURL}"></yt-img-shadow777>
  3284.  
  3285.                 <span id="text" dir="ltr" class="style-scope yt-live-chat-ticker-dummy777-item-renderer">¥1,000</span>
  3286.               </div>
  3287.             </div>
  3288.           </yt-live-chat-ticker-dummy777-item-renderer>`;
  3289.           const dummy777 = template.content.firstElementChild;
  3290.           await Promise.resolve().then();
  3291.           let res = 0;
  3292.           if (items instanceof HTMLElement && items.isConnected === true) {
  3293.             try {
  3294.               items.appendChild(dummy777);
  3295.               let container = HTMLElement.prototype.querySelector.call(dummy777, '#container') || 0;
  3296.               if (container.isConnected === true) {
  3297.                 const evaluated = `${getComputedStyleCached(container).background}`;
  3298.                 container = null;
  3299.                 res = evaluated.indexOf('0.') < 4 ? 1 : 2;
  3300.               }
  3301.             } catch (e) { console.warn(e) }
  3302.             HTMLElement.prototype.remove.call(dummy777);
  3303.           }
  3304.           await Promise.resolve().then();
  3305.           dummy777.textContent = '';
  3306.           if (res === 1) {
  3307.             // not fulfilling
  3308.             // rgba(0, 0, 0, 0.004) none repeat scroll 0% 0% / auto padding-box border-box
  3309.             console.groupCollapsed(`%c${"YouTube Super Fast Chat"}%c${" | Incompatibility Found"}`,
  3310.               "background-color: #010502; color: #fe806a; font-weight: 700; padding: 2px;",
  3311.               "background-color: #010502; color: #fe806a; font-weight: 300; padding: 2px;"
  3312.             );
  3313.             console.warn(`%cWarning:\n\tYou might have added a userscript or extension that also modifies the ticker background.\n\tYouTube Super Fast Chat is taking over.`, 'color: #bada55');
  3314.             console.groupEnd();
  3315.             console.log('%cALLOW_ADVANCED_ANIMATED_TICKER_BACKGROUND (Overriding other scripting)', 'background-color: #7eb32b; color: #102624; padding: 2px 4px');
  3316.           } else if (res === 2) {
  3317.             console.log('%cALLOW_ADVANCED_ANIMATED_TICKER_BACKGROUND', 'background-color: #16c450; color: #102624; padding: 2px 4px');
  3318.           }
  3319.         } catch (e) {
  3320.           console.warn(e);
  3321.         }
  3322.       }
  3323.  
  3324.       async function asyncDelayChatOccurrence(m2) {
  3325.         try {
  3326.           await promiseForCustomYtElementsReady.then();
  3327.           await customElements.whenDefined('yt-live-chat-text-message-renderer');
  3328.           await new Promise(r => setTimeout(r, 1));
  3329.           const dummy888 = document.createElement('yt-live-chat-text-message-renderer');
  3330.           // const template = document.createElement('template');
  3331.           // template.innerHTML = "<yt-live-chat-text-message-renderer></yt-live-chat-text-message-renderer>"
  3332.           // const dummy888 = template.content.firstElementChild;
  3333.           const skzCnt = insp(dummy888);
  3334.           if (!(skzCnt && 'data' in skzCnt && 'attached' in skzCnt)) {
  3335.             return;
  3336.           }
  3337.           if (!skzCnt.hostElement) skzCnt.hostElement = dummy888;
  3338.           /** @type {HTMLTemplateElement} */
  3339.           const skzElem = dummy888;
  3340.           let cz1 = null;
  3341.           const deferredZy1 = new Promise(resolve => {
  3342.             skzCnt.attached = function () {
  3343.               cz1 = HTMLElement.prototype.querySelector.call(skzElem, '#message img') !== null;
  3344.               resolve(skzElem.textContent);
  3345.             }
  3346.             skzCnt.detached = function () {
  3347.             }
  3348.           });
  3349.           skzElem.id = 'sk35z';
  3350.           skzData(skzCnt);
  3351.           sk35zResolveFn = null;
  3352.           const deferredMutation = new Promise(resolve => {
  3353.             sk35zResolveFn = resolve;
  3354.             HTMLElement.prototype.appendChild.call(m2, skzElem);
  3355.           });
  3356.           const [zy1, _] = await Promise.all([deferredZy1, deferredMutation]);
  3357.           skzCnt.attached = function () { };
  3358.           function fn() {
  3359.             const zy2 = skzElem.textContent;
  3360.             const cz2 = HTMLElement.prototype.querySelector.call(skzElem, '#message img') !== null;
  3361.             if (typeof zy1 === 'string' && typeof zy2 === 'string') {
  3362.               allowDontRender = zy1 === zy2 && cz1 === cz2; // '0:43N​em2oji'
  3363.             }
  3364.             if (allowDontRender === true) return true;
  3365.             if (allowDontRender === false) {
  3366.               console.groupCollapsed(`%c${"YouTube Super Fast Chat"}%c${" | Incompatibility Found"}`,
  3367.                 "background-color: #010502; color: #fe806a; font-weight: 700; padding: 2px;",
  3368.                 "background-color: #010502; color: #fe806a; font-weight: 300; padding: 2px;"
  3369.               );
  3370.               console.warn(`%cWarning:\n\tYou might have added a userscript or extension that stops YouTube Super Fast Chat's quick loading.\n\tTo figure out which one affects the script, turn them off one by one and let the author know.`, 'color: #bada55');
  3371.               console.groupEnd();
  3372.             }
  3373.           }
  3374.           await new Promise(r => setTimeout(r, 1));
  3375.           if (!fn()) return;
  3376.           await foregroundPromiseFn().then();
  3377.           if (!fn()) return;
  3378.           skzElem.remove();
  3379.           await Promise.resolve().then();
  3380.           skzElem.textContent = '';
  3381.           console.log('%cALLOW_DELAYED_CHAT_OCCURRENCE', 'background-color: #16c450; color: #102624; padding: 2px 4px');
  3382.         } catch (e) {
  3383.           console.warn(e);
  3384.         }
  3385.       }
  3386.  
  3387.       const mutFn = (items) => {
  3388.         let seqIndex = -1;
  3389.         const elementSet = new Set();
  3390.         for (let node = nLastElem(items); node !== null; node = nPrevElem(node)) {
  3391.           if (node.hasAttribute('wSr93')) {
  3392.             seqIndex = parseInt(node.getAttribute('yt-chat-item-seq'), 10);
  3393.             break;
  3394.           }
  3395.           node.setAttribute('wSr93', '');
  3396.           visObserver.observe(node);
  3397.           elementSet.add(node);
  3398.         }
  3399.         let iter = elementSet.values();
  3400.         let i = seqIndex + elementSet.size;
  3401.         for (let curr; curr = iter.next().value;) {
  3402.           curr.setAttribute('yt-chat-item-seq', i % 60);
  3403.           curr.classList.add('yt-chat-item-' + ((i % 2) ? 'odd' : 'even'));
  3404.           i--;
  3405.         }
  3406.         iter = null;
  3407.         elementSet.clear();
  3408.       }
  3409.  
  3410.       const mutObserver = new MutationObserver((mutations) => {
  3411.         const items = (mutations[0] || 0).target;
  3412.         if (!items) return;
  3413.         if (sk35zResolveFn) {
  3414.           sk35zResolveFn();
  3415.           sk35zResolveFn = null;
  3416.         }
  3417.         mutFn(items);
  3418.       });
  3419.  
  3420.       const setupMutObserver = (m2) => {
  3421.         scrollChatFn = null;
  3422.         mutObserver.disconnect();
  3423.         mutObserver.takeRecords();
  3424.         if (m2) {
  3425.           ENABLE_DELAYED_CHAT_OCCURRENCE && bnForDelayChatOccurrence();
  3426.           if (typeof m2.__appendChild932__ === 'function') {
  3427.             if (typeof m2.appendChild === 'function') m2.appendChild = m2.__appendChild932__;
  3428.             if (typeof m2.__shady_native_appendChild === 'function') m2.__shady_native_appendChild = m2.__appendChild932__;
  3429.           }
  3430.           mutObserver.observe(m2, {
  3431.             childList: true,
  3432.             subtree: false
  3433.           });
  3434.           mutFn(m2);
  3435.  
  3436.           const isFirstList = firstList;
  3437.           firstList = false;
  3438.  
  3439.           if (ENABLE_OVERFLOW_ANCHOR) {
  3440.  
  3441.             let items = m2;
  3442.             let addedAnchor = false;
  3443.             if (items) {
  3444.               if (items.nextElementSibling === null) {
  3445.                 items.classList.add('no-anchor');
  3446.                 addedAnchor = true;
  3447.                 items.parentNode.appendChild(dr(document.createElement('item-anchor')));
  3448.               }
  3449.             }
  3450.  
  3451.  
  3452.  
  3453.             if (addedAnchor) {
  3454.               nodeParent(m2).classList.add('no-anchor'); // required
  3455.             }
  3456.  
  3457.           }
  3458.  
  3459.           // let div = document.createElement('div');
  3460.           // div.id = 'qwcc';
  3461.           // HTMLElement.prototype.appendChild.call(document.querySelector('yt-live-chat-item-list-renderer'), div )
  3462.           // bufferRegion =div;
  3463.  
  3464.           // buffObserver.takeRecords();
  3465.           // buffObserver.disconnect();
  3466.           // buffObserver.observe(div,  {
  3467.           //     childList: true,
  3468.           //     subtree: false
  3469.           // })
  3470.  
  3471.           if (ENABLE_DELAYED_CHAT_OCCURRENCE && isFirstList) {
  3472.             asyncDelayChatOccurrence(m2);
  3473.           }
  3474.  
  3475.  
  3476.           if (ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX) {
  3477.  
  3478.             (() => {
  3479.  
  3480.               const tag = 'yt-iframed-player-events-relay'
  3481.               const dummy = document.createElement(tag);
  3482.  
  3483.               const cProto = getProto(dummy);
  3484.               if (!cProto || !cProto.handlePostMessage_) {
  3485.                 console.warn(`proto.handlePostMessage_ for ${tag} is unavailable.`);
  3486.                 return;
  3487.               }
  3488.  
  3489.               if (typeof cProto.handlePostMessage_ === 'function' && !cProto.handlePostMessage66_) {
  3490.  
  3491.                 cProto.handlePostMessage66_ = cProto.handlePostMessage_;
  3492.  
  3493.                 cProto.handlePostMessage67_ = function (a) {
  3494.  
  3495.                   const da = a.data;
  3496.  
  3497.  
  3498.  
  3499.                   playEventsStack = playEventsStack.then(() => {
  3500.  
  3501.  
  3502.  
  3503.                     if ('yt-player-state-change' in da) {
  3504.  
  3505.                       const qc = da['yt-player-state-change'];
  3506.  
  3507.  
  3508.                       let isQcChanged = false;
  3509.  
  3510.                       if (qc === 2) { isQcChanged = qc !== _playerState; _playerState = 2; relayCount = 0; } // paused
  3511.                       else if (qc === 3) { isQcChanged = qc !== _playerState; _playerState = 3; } // playing
  3512.                       else if (qc === 1) { isQcChanged = qc !== _playerState; _playerState = 1; } // playing
  3513.  
  3514.  
  3515.                       if ((isQcChanged) && playerState !== _playerState) {
  3516.                         playerEventsByIframeRelay = true;
  3517.                         onPlayStateChangePromise = new Promise((resolve) => {
  3518.                           let k = _playerState;
  3519.                           foregroundPromiseFn().then(() => {
  3520.                             if (k === _playerState && playerState !== _playerState) playerState = _playerState;
  3521.                             onPlayStateChangePromise = null;
  3522.                             resolve();
  3523.                           })
  3524.                         }).catch(console.warn);
  3525.  
  3526.                       }
  3527.  
  3528.                     } else if ('yt-player-video-progress' in da) {
  3529.                       const vp = da['yt-player-video-progress'];
  3530.  
  3531.  
  3532.                       relayCount++;
  3533.                       lastPlayerProgress = vp > 0 ? vp : 0;
  3534.  
  3535.  
  3536.                       if (relayPromise && vp > 0 && relayCount >= 2) {
  3537.                         if (onPlayStateChangePromise) {
  3538.                           onPlayStateChangePromise.then(() => {
  3539.                             relayPromise && relayPromise.resolve();
  3540.                             relayPromise = null;
  3541.                           })
  3542.                         } else {
  3543.                           relayPromise.resolve();
  3544.                           relayPromise = null;
  3545.                         }
  3546.                       }
  3547.  
  3548.  
  3549.  
  3550.                     }
  3551.  
  3552.  
  3553.  
  3554.  
  3555.  
  3556.  
  3557.                     return this.handlePostMessage66_(a);
  3558.  
  3559.  
  3560.  
  3561.                   }).catch(console.warn);
  3562.  
  3563.                 }
  3564.  
  3565.  
  3566.                 cProto.handlePostMessage_ = function (a) {
  3567.  
  3568.  
  3569.                   const da = (a || 0).data || 0;
  3570.  
  3571.                   if (typeof da !== 'object') return;
  3572.  
  3573.                   if (waitForInitialDataCompletion === 1) return;
  3574.  
  3575.                   if (!isPlayProgressTriggered) {
  3576.                     isPlayProgressTriggered = true;
  3577.  
  3578.                     if ('yt-player-video-progress' in da) {
  3579.                       waitForInitialDataCompletion = 1;
  3580.  
  3581.                       const wrapWith = (data) => {
  3582.                         const { origin } = a;
  3583.                         return {
  3584.                           origin,
  3585.                           data
  3586.                         };
  3587.                       }
  3588.  
  3589.                       this.handlePostMessage67_(wrapWith({
  3590.                         "yt-iframed-parent-ready": true
  3591.                       }));
  3592.  
  3593.  
  3594.  
  3595.                       playEventsStack = playEventsStack.then(() => {
  3596.  
  3597.  
  3598.  
  3599.                         const lcr = document.querySelector('yt-live-chat-renderer');
  3600.                         const psc = document.querySelector("yt-player-seek-continuation");
  3601.                         if (lcr && psc && lcr.replayBuffer_) {
  3602.  
  3603.  
  3604.                           const rbProgress = lcr.replayBuffer_.lastVideoOffsetTimeMsec;
  3605.                           const daProgress = da['yt-player-video-progress'] * 1000
  3606.                           // document.querySelector('yt-live-chat-renderer').playerProgressChanged_(1e-5);
  3607.  
  3608.  
  3609.                           const front_ = (lcr.replayBuffer_.replayQueue || 0).front_;
  3610.                           const back_ = (lcr.replayBuffer_.replayQueue || 0).back_;
  3611.  
  3612.  
  3613.                           // console.log(deepCopy( front_))
  3614.                           // console.log(deepCopy( back_))
  3615.                           // console.log(rbProgress, daProgress, )
  3616.                           if (front_ && back_ && rbProgress > daProgress && back_.length > 2 && back_.some(e => e && +e.videoOffsetTimeMsec > daProgress) && back_.some(e => e && +e.videoOffsetTimeMsec < daProgress)) {
  3617.                             // no action
  3618.                             // console.log('ss1')
  3619.                           } else if (rbProgress < daProgress + 3400 && rbProgress > daProgress - 1200) {
  3620.                             //  daProgress - 1200 < rbProgress < daProgress + 3400
  3621.                             // console.log('ss2')
  3622.                           } else {
  3623.  
  3624.                             // console.log('ss3')
  3625.                             // lcr.replayBuffer_.replayQueue.back_.length= 0;
  3626.                             // lcr.replayBuffer_.replayQueue.front_.length= 0;
  3627.  
  3628.                             // lcr
  3629.                             lcr.previousProgressSec = 1E-5;
  3630.                             // lcr._setIsSeeking(!0),
  3631.                             lcr.replayBuffer_.clear()
  3632.                             psc.fireSeekContinuation_(da['yt-player-video-progress']);
  3633.                           }
  3634.  
  3635.                         }
  3636.  
  3637.  
  3638.                         waitForInitialDataCompletion = 2;
  3639.  
  3640.                         this.handlePostMessage_(a);
  3641.  
  3642.  
  3643.                       }).catch(console.warn);
  3644.  
  3645.  
  3646.  
  3647.                       return;
  3648.  
  3649.                     }
  3650.  
  3651.                   }
  3652.  
  3653.  
  3654.  
  3655.                   this.handlePostMessage67_(a);
  3656.  
  3657.  
  3658.  
  3659.                 }
  3660.  
  3661.               }
  3662.  
  3663.  
  3664.             })();
  3665.  
  3666.           }
  3667.  
  3668.           if (isFirstList && DO_CHECK_TICKER_BACKGROUND_OVERRIDED) {
  3669.             asyncTickerBackgroundOverridedChecker();
  3670.           }
  3671.  
  3672.         }
  3673.       }
  3674.  
  3675.       return { setupMutObserver };
  3676.  
  3677.  
  3678.  
  3679.     })();
  3680.  
  3681.     const setupEvents = () => {
  3682.  
  3683.  
  3684.       let scrollCount = 0;
  3685.  
  3686.       const passiveCapture = typeof IntersectionObserver === 'function' ? { capture: true, passive: true } : true;
  3687.  
  3688.  
  3689.       const delayFlushActiveItemsAfterUserActionK_ = () => {
  3690.  
  3691.         const lcRenderer = lcRendererElm();
  3692.         if (lcRenderer) {
  3693.           const cnt = insp(lcRenderer);
  3694.           if (!cnt.hasUserJustInteracted11_) return;
  3695.           if (cnt.atBottom && cnt.allowScroll && cnt.activeItems_.length >= 1 && cnt.hasUserJustInteracted11_()) {
  3696.             cnt.delayFlushActiveItemsAfterUserAction11_ && cnt.delayFlushActiveItemsAfterUserAction11_();
  3697.           }
  3698.         }
  3699.  
  3700.       }
  3701.  
  3702.       document.addEventListener('scroll', (evt) => {
  3703.         if (!evt || !evt.isTrusted) return;
  3704.         // lastScroll = dateNow();
  3705.         if (++scrollCount > 1e9) scrollCount = 9;
  3706.       }, passiveCapture); // support contain => support passive
  3707.  
  3708.       let lastScrollCount = -1;
  3709.       document.addEventListener('wheel', (evt) => {
  3710.         if (!evt || !evt.isTrusted) return;
  3711.         if (lastScrollCount === scrollCount) return;
  3712.         lastScrollCount = scrollCount;
  3713.         lastWheel = dateNow();
  3714.         delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3715.       }, passiveCapture); // support contain => support passive
  3716.  
  3717.       document.addEventListener('mousedown', (evt) => {
  3718.         if (!evt || !evt.isTrusted) return;
  3719.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3720.         lastMouseDown = dateNow();
  3721.         currentMouseDown = true;
  3722.         lastUserInteraction = lastMouseDown;
  3723.       }, passiveCapture);
  3724.  
  3725.       document.addEventListener('pointerdown', (evt) => {
  3726.         if (!evt || !evt.isTrusted) return;
  3727.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3728.         lastMouseDown = dateNow();
  3729.         currentMouseDown = true;
  3730.         lastUserInteraction = lastMouseDown;
  3731.       }, passiveCapture);
  3732.  
  3733.       document.addEventListener('click', (evt) => {
  3734.         if (!evt || !evt.isTrusted) return;
  3735.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3736.         lastMouseDown = lastMouseUp = dateNow();
  3737.         currentMouseDown = false;
  3738.         lastUserInteraction = lastMouseDown;
  3739.         delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3740.       }, passiveCapture);
  3741.  
  3742.       document.addEventListener('tap', (evt) => {
  3743.         if (!evt || !evt.isTrusted) return;
  3744.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3745.         lastMouseDown = lastMouseUp = dateNow();
  3746.         currentMouseDown = false;
  3747.         lastUserInteraction = lastMouseDown;
  3748.         delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3749.       }, passiveCapture);
  3750.  
  3751.  
  3752.       document.addEventListener('mouseup', (evt) => {
  3753.         if (!evt || !evt.isTrusted) return;
  3754.         if (currentMouseDown) {
  3755.           lastMouseUp = dateNow();
  3756.           currentMouseDown = false;
  3757.           lastUserInteraction = lastMouseUp;
  3758.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3759.         }
  3760.       }, passiveCapture);
  3761.  
  3762.  
  3763.       document.addEventListener('pointerup', (evt) => {
  3764.         if (!evt || !evt.isTrusted) return;
  3765.         if (currentMouseDown) {
  3766.           lastMouseUp = dateNow();
  3767.           currentMouseDown = false;
  3768.           lastUserInteraction = lastMouseUp;
  3769.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3770.         }
  3771.       }, passiveCapture);
  3772.  
  3773.       document.addEventListener('touchstart', (evt) => {
  3774.         if (!evt || !evt.isTrusted) return;
  3775.         lastTouchDown = dateNow();
  3776.         currentTouchDown = true;
  3777.         lastUserInteraction = lastTouchDown;
  3778.       }, passiveCapture);
  3779.  
  3780.       document.addEventListener('touchmove', (evt) => {
  3781.         if (!evt || !evt.isTrusted) return;
  3782.         lastTouchDown = dateNow();
  3783.         currentTouchDown = true;
  3784.         lastUserInteraction = lastTouchDown;
  3785.       }, passiveCapture);
  3786.  
  3787.       document.addEventListener('touchend', (evt) => {
  3788.         if (!evt || !evt.isTrusted) return;
  3789.         if (currentTouchDown) {
  3790.           lastTouchUp = dateNow();
  3791.           currentTouchDown = false;
  3792.           lastUserInteraction = lastTouchUp;
  3793.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3794.         }
  3795.       }, passiveCapture);
  3796.  
  3797.       document.addEventListener('touchcancel', (evt) => {
  3798.         if (!evt || !evt.isTrusted) return;
  3799.         if (currentTouchDown) {
  3800.           lastTouchUp = dateNow();
  3801.           currentTouchDown = false;
  3802.           lastUserInteraction = lastTouchUp;
  3803.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3804.         }
  3805.       }, passiveCapture);
  3806.  
  3807.  
  3808.     }
  3809.  
  3810.     const getTimestampUsec = (itemRenderer) => {
  3811.       if (itemRenderer && 'timestampUsec' in itemRenderer) {
  3812.         return itemRenderer.timestampUsec
  3813.       } else if (itemRenderer && itemRenderer.showItemEndpoint) {
  3814.         const messageRenderer = ((itemRenderer.showItemEndpoint.showLiveChatItemEndpoint || 0).renderer || 0);
  3815.         if (messageRenderer) {
  3816.  
  3817.           const messageRendererKey = firstObjectKey(messageRenderer);
  3818.           if (messageRendererKey && messageRenderer[messageRendererKey]) {
  3819.             const messageRendererData = messageRenderer[messageRendererKey];
  3820.             if (messageRendererData && 'timestampUsec' in messageRendererData) {
  3821.               return messageRendererData.timestampUsec
  3822.             }
  3823.           }
  3824.         }
  3825.       }
  3826.       return null;
  3827.     }
  3828.  
  3829.     const onRegistryReadyForDOMOperations = () => {
  3830.  
  3831.       let firstCheckedOnYtInit = false;
  3832.  
  3833.       const assertorURL = () => assertor(() => location.pathname.startsWith('/live_chat') && (location.search.indexOf('continuation=') > 0 || location.search.indexOf('v=') > 0));
  3834.  
  3835.       const mightFirstCheckOnYtInit = () => {
  3836.         if (firstCheckedOnYtInit) return;
  3837.         firstCheckedOnYtInit = true;
  3838.  
  3839.         if (!document.body || !document.head) return;
  3840.         if (!assertorURL()) return;
  3841.  
  3842.         addCssManaged();
  3843.  
  3844.         let efsContainer = document.getElementById('elzm-fonts-yk75g');
  3845.         if (efsContainer && efsContainer.parentNode !== document.body) {
  3846.           document.body.appendChild(efsContainer);
  3847.         }
  3848.  
  3849.       };
  3850.  
  3851.       if (!assertorURL()) return;
  3852.       // if (!assertor(() => document.getElementById('yt-masthead') === null)) return;
  3853.  
  3854.       if (document.documentElement && document.head) {
  3855.         addCssManaged();
  3856.       }
  3857.       // console.log(document.body===null)
  3858.  
  3859.       if (ATTEMPT_TICKER_ANIMATION_START_TIME_DETECTION) {
  3860.         getLCRDummy().then(async (lcrDummy) => {
  3861.  
  3862.           const tag = "yt-live-chat-renderer"
  3863.           const dummy = lcrDummy;
  3864.  
  3865.           const cProto = getProto(dummy);
  3866.           if (!cProto || !cProto.attached) {
  3867.             console.warn(`proto.attached for ${tag} is unavailable.`);
  3868.             return;
  3869.           }
  3870.  
  3871.           mightFirstCheckOnYtInit();
  3872.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-renderer hacks");
  3873.           console.log("[Begin]");
  3874.  
  3875.  
  3876.  
  3877.  
  3878.  
  3879.  
  3880.           if (typeof cProto.playerProgressChanged_ === 'function' && !cProto.playerProgressChanged32_) {
  3881.  
  3882.             cProto.playerProgressChanged32_ = cProto.playerProgressChanged_;
  3883.  
  3884.             const pop078 = function () {
  3885.               const r = this.pop78();
  3886.  
  3887.               if (r && (r.actions || 0).length >= 1 && r.videoOffsetTimeMsec) {
  3888.                 for (const action of r.actions) {
  3889.  
  3890.                   const itemActionKey = !action ? null : 'addChatItemAction' in action ? 'addChatItemAction' : 'addLiveChatTickerItemAction' in action ? 'addLiveChatTickerItemAction' : null;
  3891.                   if (itemActionKey) {
  3892.  
  3893.                     const itemAction = action[itemActionKey];
  3894.                     const item = (itemAction || 0).item;
  3895.                     if (typeof item === 'object') {
  3896.  
  3897.                       const rendererKey = firstObjectKey(item);
  3898.                       if (rendererKey) {
  3899.                         const renderer = item[rendererKey];
  3900.                         if (renderer && typeof renderer === 'object') {
  3901.                           renderer.__videoOffsetTimeMsec__ = r.videoOffsetTimeMsec;
  3902.                           renderer.__progressAt__ = playerProgressChangedArg1;
  3903.                         }
  3904.  
  3905.                       }
  3906.  
  3907.                     }
  3908.                   }
  3909.                 }
  3910.               }
  3911.               return r;
  3912.             }
  3913.  
  3914.             cProto.playerProgressChanged_ = function (a, b, c) {
  3915.               playerProgressChangedArg1 = a;
  3916.               playerProgressChangedArg2 = b;
  3917.               playerProgressChangedArg3 = c;
  3918.               const replayBuffer_ = this.replayBuffer_;
  3919.               if (replayBuffer_) {
  3920.                 const replayQueue = replayBuffer_.replayQueue
  3921.                 if (replayQueue && typeof replayQueue === 'object' && !replayQueue.qe3) {
  3922.  
  3923.                   replayBuffer_.replayQueue = new Proxy(replayBuffer_.replayQueue, {
  3924.                     get(target, prop, receiver) {
  3925.                       if (prop === 'qe3') return 1;
  3926.                       const v = target[prop];
  3927.                       if (prop === 'front_') {
  3928.                         if (v && typeof v.length === 'number') {
  3929.                           if (!v.pop78) {
  3930.                             v.pop78 = v.pop;
  3931.                             v.pop = pop078;
  3932.                           }
  3933.                         }
  3934.                       }
  3935.                       return v;
  3936.                     }
  3937.                   });
  3938.  
  3939.                 }
  3940.               }
  3941.               return this.playerProgressChanged32_.apply(this, arguments);
  3942.             };
  3943.  
  3944.           }
  3945.  
  3946.           // if (typeof cProto.immediatelyApplyLiveChatActions === 'function' && !cProto.immediatelyApplyLiveChatActions32) {
  3947.  
  3948.           //   cProto.immediatelyApplyLiveChatActions32 = cProto.immediatelyApplyLiveChatActions;
  3949.  
  3950.           //   cProto.immediatelyApplyLiveChatActions = function (a) {
  3951.           //     // if (a.length > 8) {
  3952.           //     //   console.log(a)
  3953.           //     // }
  3954.           //     // console.log(a)
  3955.           //     /*
  3956.           //     let arr=a.slice();
  3957.  
  3958.           //     if(arr.length >= 2){
  3959.           //       arr.sort((a, b)=>{
  3960.           //         let ak = firstObjectKey(a);
  3961.           //         let bk = firstObjectKey(b);
  3962.           //         if(!ak||!bk) return 0;
  3963.           //         const ax = +a[ak]._timestampUsec57;
  3964.           //         const bx = +b[bk]._timestampUsec57;
  3965.           //         if(ax >0 && bx >0){
  3966.           //           const c =  bx - ax ;
  3967.  
  3968.           //           return c > 0.1 ? -1 : c< -0.1 ? 1 : 0;
  3969.           //         }
  3970.           //         return 0;
  3971.  
  3972.           //       });
  3973.           //       console.log('sort', JSON.parse(JSON.stringify(arr)));
  3974.           //     }
  3975.           //     a=arr;
  3976.           //     */
  3977.  
  3978.           //     if (a && typeof a === 'object' && a.length >= 1) {
  3979.           //       const d = Date.now();
  3980.           //       const m = [];
  3981.           //       for (let i = 0, l = a.length; i < l; i++) {
  3982.           //         const action = a[i];
  3983.           //         const key = !action ? null : 'addChatItemAction' in action ? 'addChatItemAction' : 'addLiveChatTickerItemAction' in action ? 'addLiveChatTickerItemAction' : null;
  3984.           //         if (key === 'addChatItemAction' || key === 'addLiveChatTickerItemAction') {
  3985.           //           const itemAction = action[key] || 0;
  3986.           //           const item = itemAction.item || 0;
  3987.           //           if (item && typeof item === 'object') {
  3988.           //             let rendererKey = firstObjectKey(item);
  3989.           //             const renderer = item[rendererKey];
  3990.           //             let timestampUsec = getTimestampUsec(renderer);
  3991.           //             if (timestampUsec !== null) {
  3992.           //               renderer._timestampUsec57 = timestampUsec;
  3993.           //             }
  3994.           //             m.push(renderer);
  3995.           //             // if(timestampUsec!==null){
  3996.           //             //   if(key==='addLiveChatTickerItemAction')console.log(renderer, rendererKey, key)
  3997.           //             //   m.push(renderer);
  3998.  
  3999.           //             // }
  4000.           //           }
  4001.           //         }
  4002.           //       }
  4003.           //       if (m.length >= 1) {
  4004.  
  4005.           //         let lastUsec = null;
  4006.           //         for (let i = 0, l = m.length; i < l; i++) {
  4007.           //           const renderer = m[i];
  4008.           //           if ('_timestampUsec57' in renderer) {
  4009.           //             lastUsec = +renderer._timestampUsec57 / 1E3;
  4010.           //             renderer.__lcrTime__ = d;
  4011.           //             renderer.__actionAt__ = d;
  4012.           //           }
  4013.           //         }
  4014.  
  4015.  
  4016.           //         if (lastUsec !== null) {
  4017.  
  4018.           //           const refUsec = lastUsec
  4019.  
  4020.           //           let prevUsec = null;
  4021.           //           for (let i = 0, l = m.length; i < l; i++) {
  4022.           //             const renderer = m[i];
  4023.           //             if ('_timestampUsec57' in renderer) {
  4024.  
  4025.           //               let actualTime = +renderer._timestampUsec57 / 1E3; // ms
  4026.           //               let lcrTime = d - Math.round(refUsec - actualTime); // ms
  4027.  
  4028.           //               renderer.__lcrTime__ = lcrTime; // ms
  4029.           //               renderer.__actionAt__ = d;
  4030.  
  4031.           //               prevUsec = lcrTime
  4032.           //             } else {
  4033.  
  4034.           //               renderer._prevUsec57 = prevUsec;
  4035.           //             }
  4036.           //           }
  4037.  
  4038.  
  4039.           //           let nextUsec = null;
  4040.           //           for (let i = m.length - 1; i >= 0; i--) {
  4041.           //             const renderer = m[i];
  4042.           //             if ('_timestampUsec57' in renderer) {
  4043.  
  4044.           //               nextUsec = renderer.__lcrTime__
  4045.           //             } else {
  4046.  
  4047.           //               renderer._nextUsec57 = nextUsec;
  4048.  
  4049.           //               if (renderer._nextUsec57 > 0 && renderer._prevUsec57 > 0 && renderer._nextUsec57 > renderer._prevUsec57) {
  4050.           //                 renderer.__lcrTime__ = (renderer._nextUsec57 + renderer._prevUsec57) / 2;
  4051.           //                 renderer.__actionAt__ = d;
  4052.           //               }
  4053.           //             }
  4054.           //           }
  4055.  
  4056.  
  4057.           //         }
  4058.  
  4059.  
  4060.           //       }
  4061.           //     }
  4062.           //     return this.immediatelyApplyLiveChatActions32.apply(this, arguments)
  4063.           //   }
  4064.  
  4065.  
  4066.           // }
  4067.  
  4068.  
  4069.  
  4070.           console.log("[End]");
  4071.           console.groupEnd();
  4072.  
  4073.  
  4074.         });
  4075.  
  4076.       }
  4077.  
  4078.       customElements.whenDefined('yt-live-chat-item-list-renderer').then(() => {
  4079.  
  4080.         const tag = "yt-live-chat-item-list-renderer"
  4081.         const dummy = document.createElement(tag);
  4082.  
  4083.         const cProto = getProto(dummy);
  4084.         if (!cProto || !cProto.attached) {
  4085.           console.warn(`proto.attached for ${tag} is unavailable.`);
  4086.           return;
  4087.         }
  4088.  
  4089.         mightFirstCheckOnYtInit();
  4090.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-item-list-renderer hacks");
  4091.         console.log("[Begin]");
  4092.  
  4093.         const mclp = cProto;
  4094.         try {
  4095.           assertor(() => typeof mclp.scrollToBottom_ === 'function');
  4096.           assertor(() => typeof mclp.flushActiveItems_ === 'function');
  4097.           assertor(() => typeof mclp.canScrollToBottom_ === 'function');
  4098.           assertor(() => typeof mclp.setAtBottom === 'function');
  4099.           assertor(() => typeof mclp.scrollToBottom66_ === 'undefined');
  4100.           assertor(() => typeof mclp.flushActiveItems66_ === 'undefined');
  4101.         } catch (e) { }
  4102.  
  4103.  
  4104.         try {
  4105.           assertor(() => typeof mclp.attached === 'function');
  4106.           assertor(() => typeof mclp.detached === 'function');
  4107.           assertor(() => typeof mclp.canScrollToBottom_ === 'function');
  4108.           assertor(() => typeof mclp.isSmoothScrollEnabled_ === 'function');
  4109.           assertor(() => typeof mclp.maybeResizeScrollContainer_ === 'function');
  4110.           assertor(() => typeof mclp.refreshOffsetContainerHeight_ === 'function');
  4111.           assertor(() => typeof mclp.smoothScroll_ === 'function');
  4112.           assertor(() => typeof mclp.resetSmoothScroll_ === 'function');
  4113.         } catch (e) { }
  4114.  
  4115.         mclp.__intermediate_delay__ = null;
  4116.  
  4117.         let mzk = 0;
  4118.         let myk = 0;
  4119.         let mlf = 0;
  4120.         let myw = 0;
  4121.         let mzt = 0;
  4122.         let zarr = null;
  4123.         let mlg = 0;
  4124.  
  4125.         if ((mclp.clearList || 0).length === 0) {
  4126.           assertor(() => fnIntegrity(mclp.clearList, '0.106.50'));
  4127.           mclp.clearList66 = mclp.clearList;
  4128.           mclp.clearList = function () {
  4129.             mzk++;
  4130.             myk++;
  4131.             mlf++;
  4132.             myw++;
  4133.             mzt++;
  4134.             mlg++;
  4135.             zarr = null;
  4136.             this.__intermediate_delay__ = null;
  4137.             this.clearList66();
  4138.           };
  4139.           console.log("clearList", "OK");
  4140.         } else {
  4141.           console.log("clearList", "NG");
  4142.         }
  4143.  
  4144.  
  4145.         let onListRendererAttachedDone = false;
  4146.  
  4147.         function setList(itemOffset, items) {
  4148.  
  4149.           const isFirstTime = onListRendererAttachedDone === false;
  4150.  
  4151.           if (isFirstTime) {
  4152.             onListRendererAttachedDone = true;
  4153.             Promise.resolve().then(watchUserCSS);
  4154.             addCssManaged();
  4155.             setupEvents();
  4156.           }
  4157.  
  4158.           setupStyle(itemOffset, items);
  4159.  
  4160.           setupMutObserver(items);
  4161.         }
  4162.  
  4163.         mclp.attached419 = async function () {
  4164.  
  4165.           if (!this.isAttached) return;
  4166.  
  4167.           let maxTrial = 16;
  4168.           while (!this.$ || !this.$['item-scroller'] || !this.$['item-offset'] || !this.$['items']) {
  4169.             if (--maxTrial < 0 || !this.isAttached) return;
  4170.             await iAFP(this.hostElement).then();
  4171.             // await new Promise(requestAnimationFrame);
  4172.           }
  4173.  
  4174.           if (this.isAttached !== true) return;
  4175.  
  4176.           if (!this.$) {
  4177.             console.warn("!this.$");
  4178.             return;
  4179.           }
  4180.           if (!this.$) return;
  4181.           /** @type {HTMLElement | null} */
  4182.           const itemScroller = this.$['item-scroller'];
  4183.           /** @type {HTMLElement | null} */
  4184.           const itemOffset = this.$['item-offset'];
  4185.           /** @type {HTMLElement | null} */
  4186.           const items = this.$['items'];
  4187.  
  4188.           if (!itemScroller || !itemOffset || !items) {
  4189.             console.warn("items.parentNode !== itemOffset");
  4190.             return;
  4191.           }
  4192.  
  4193.           if (nodeParent(items) !== itemOffset) {
  4194.  
  4195.             console.warn("items.parentNode !== itemOffset");
  4196.             return;
  4197.           }
  4198.  
  4199.  
  4200.           if (items.id !== 'items' || itemOffset.id !== "item-offset") {
  4201.  
  4202.             console.warn("id incorrect");
  4203.             return;
  4204.           }
  4205.  
  4206.           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')
  4207.  
  4208.           if (!isTargetItems) {
  4209.             console.warn("!isTargetItems");
  4210.             return;
  4211.           }
  4212.  
  4213.           setList(itemOffset, items);
  4214.  
  4215.         }
  4216.  
  4217.         mclp.attached331 = mclp.attached;
  4218.         mclp.attached = function () {
  4219.           this.attached419 && this.attached419();
  4220.           return this.attached331();
  4221.         }
  4222.  
  4223.         mclp.detached331 = mclp.detached;
  4224.  
  4225.         mclp.detached = function () {
  4226.           setupMutObserver();
  4227.           return this.detached331();
  4228.         }
  4229.  
  4230.         const t29s = document.querySelectorAll("yt-live-chat-item-list-renderer");
  4231.         for (const t29 of t29s) {
  4232.           if (insp(t29).isAttached === true) {
  4233.             t29.attached419();
  4234.           }
  4235.         }
  4236.  
  4237.         if ((mclp.async || 0).length === 2 && (mclp.cancelAsync || 0).length === 1) {
  4238.  
  4239.           assertor(() => fnIntegrity(mclp.async, '2.24.15'));
  4240.           assertor(() => fnIntegrity(mclp.cancelAsync, '1.15.8'));
  4241.  
  4242.           /** @type {Map<number, any>} */
  4243.           const aMap = new Map();
  4244.           let count = 6150;
  4245.           mclp.async66 = mclp.async;
  4246.           mclp.async = function (e, f) {
  4247.             // ensure the previous operation is done
  4248.             // .async is usually after the time consuming functions like flushActiveItems_ and scrollToBottom_
  4249.             const hasF = arguments.length === 2;
  4250.             const stack = new Error().stack;
  4251.             const isFlushAsync = stack.indexOf('flushActiveItems_') >= 0;
  4252.             if (count > 1e9) count = 6159;
  4253.             const resId = ++count;
  4254.             aMap.set(resId, e);
  4255.             (this.__intermediate_delay__ || Promise.resolve()).then(rk => {
  4256.               const rp = aMap.get(resId);
  4257.               if (typeof rp !== 'function') {
  4258.                 return;
  4259.               }
  4260.               let cancelCall = false;
  4261.               if (isFlushAsync) {
  4262.                 if (rk < 0) {
  4263.                   cancelCall = true;
  4264.                 } else if (rk === 2 && arguments[0] === this.maybeScrollToBottom_) {
  4265.                   cancelCall = true;
  4266.                 }
  4267.               }
  4268.               if (cancelCall) {
  4269.                 aMap.delete(resId);
  4270.               } else {
  4271.                 const asyncEn = function () {
  4272.                   aMap.delete(resId);
  4273.                   return rp.apply(this, arguments);
  4274.                 };
  4275.                 aMap.set(resId, hasF ? this.async66(asyncEn, f) : this.async66(asyncEn));
  4276.               }
  4277.             });
  4278.  
  4279.             return resId;
  4280.           }
  4281.  
  4282.           mclp.cancelAsync66 = mclp.cancelAsync;
  4283.           mclp.cancelAsync = function (resId) {
  4284.             if (resId <= 6150) {
  4285.               this.cancelAsync66(resId);
  4286.             } else if (aMap.has(resId)) {
  4287.               const rp = aMap.get(resId);
  4288.               aMap.delete(resId);
  4289.               if (typeof rp !== 'function') {
  4290.                 this.cancelAsync66(rp);
  4291.               }
  4292.             }
  4293.           }
  4294.  
  4295.           console.log("async", "OK");
  4296.         } else {
  4297.           console.log("async", "NG");
  4298.         }
  4299.  
  4300.  
  4301.         if ((mclp.showNewItems_ || 0).length === 0 && ENABLE_NO_SMOOTH_TRANSFORM) {
  4302.  
  4303.           assertor(() => fnIntegrity(mclp.showNewItems_, '0.170.79'));
  4304.           mclp.showNewItems66_ = mclp.showNewItems_;
  4305.  
  4306.           mclp.showNewItems77_ = async function () {
  4307.             if (myk > 1e9) myk = 9;
  4308.             let tid = ++myk;
  4309.  
  4310.             await iAFP(this.hostElement).then();
  4311.             // await new Promise(requestAnimationFrame);
  4312.  
  4313.             if (tid !== myk) {
  4314.               return;
  4315.             }
  4316.  
  4317.             const cnt = this;
  4318.  
  4319.             await Promise.resolve();
  4320.             cnt.showNewItems66_();
  4321.  
  4322.             await Promise.resolve();
  4323.  
  4324.           }
  4325.  
  4326.           mclp.showNewItems_ = function () {
  4327.  
  4328.             const cnt = this;
  4329.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4330.               cnt.showNewItems77_().then(() => {
  4331.                 resolve();
  4332.               });
  4333.             });
  4334.           }
  4335.  
  4336.           console.log("showNewItems_", "OK");
  4337.         } else {
  4338.           console.log("showNewItems_", "NG");
  4339.         }
  4340.  
  4341.  
  4342.         if ((mclp.flushActiveItems_ || 0).length === 0) {
  4343.  
  4344.           const sfi = fnIntegrity(mclp.flushActiveItems_);
  4345.           if (sfi === '0.156.86') {
  4346.             // https://www.youtube.com/s/desktop/f61c8d85/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  4347.  
  4348.             // added "refreshOffsetContainerHeight_"
  4349.  
  4350.             //   f.flushActiveItems_ = function() {
  4351.             //     var a = this;
  4352.             //     if (0 < this.activeItems_.length)
  4353.             //         if (this.canScrollToBottom_()) {
  4354.             //             var b = Math.max(this.visibleItems.length + this.activeItems_.length - this.data.maxItemsToDisplay, 0);
  4355.             //             b && this.splice("visibleItems", 0, b);
  4356.             //             if (this.isSmoothScrollEnabled_() || this.dockableMessages.length)
  4357.             //                 this.preinsertHeight_ = this.items.clientHeight;
  4358.             //             this.activeItems_.unshift("visibleItems");
  4359.             //             try {
  4360.             //                 this.push.apply(this, this.activeItems_)
  4361.             //             } catch (c) {
  4362.             //                 fm(c)
  4363.             //             }
  4364.             //             this.activeItems_ = [];
  4365.             //             this.isSmoothScrollEnabled_() ? this.canScrollToBottom_() && Mw(function() {
  4366.             //                 a.showNewItems_()
  4367.             //             }) : Mw(function() {
  4368.             //                 a.refreshOffsetContainerHeight_();
  4369.             //                 a.maybeScrollToBottom_()
  4370.             //             })
  4371.             //         } else
  4372.             //             this.activeItems_.length > this.data.maxItemsToDisplay && this.activeItems_.splice(0, this.activeItems_.length - this.data.maxItemsToDisplay)
  4373.             // }
  4374.             // ;
  4375.  
  4376.           } else if (sfi === '0.150.84') {
  4377.             // https://www.youtube.com/s/desktop/e4d15d2c/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  4378.             // var b = Math.max(this.visibleItems.length + this.activeItems_.length - this.data.maxItemsToDisplay, 0);
  4379.             //     b && this.splice("visibleItems", 0, b);
  4380.             //     if (this.isSmoothScrollEnabled_() || this.dockableMessages.length)
  4381.             //         this.preinsertHeight_ = this.items.clientHeight;
  4382.             //     this.activeItems_.unshift("visibleItems");
  4383.             //     try {
  4384.             //         this.push.apply(this, this.activeItems_)
  4385.             //     } catch (c) {
  4386.             //         nm(c)
  4387.             //     }
  4388.             //     this.activeItems_ = [];
  4389.             //     this.isSmoothScrollEnabled_() ? this.canScrollToBottom_() && zQ(function() {
  4390.             //         a.showNewItems_()
  4391.             //     }) : zQ(function() {
  4392.             //         a.maybeScrollToBottom_()
  4393.             //     })
  4394.           } else if (sfi === '0.137.81' || sfi === '0.138.81') {
  4395.             // e.g. https://www.youtube.com/yts/jsbin/live_chat_polymer-vflCyWEBP/live_chat_polymer.js
  4396.           } else {
  4397.             assertor(() => fnIntegrity(mclp.flushActiveItems_, '0.150.84'));
  4398.           }
  4399.  
  4400.           let hasMoreMessageState = !ENABLE_SHOW_MORE_BLINKER ? -1 : 0;
  4401.  
  4402.           let contensWillChangeController = null;
  4403.  
  4404.           mclp.flushActiveItems66_ = mclp.flushActiveItems_;
  4405.  
  4406.           mclp.flushActiveItems78_ = async function (tid) {
  4407.             try {
  4408.               if (tid !== mlf) return;
  4409.               const lockedMaxItemsToDisplay = this.data.maxItemsToDisplay944;
  4410.               let logger = false;
  4411.               const cnt = this;
  4412.               let immd = cnt.__intermediate_delay__;
  4413.               await iAFP(this.hostElement).then();
  4414.               // await new Promise(requestAnimationFrame);
  4415.  
  4416.               if (tid !== mlf || cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4417.               if (!cnt.activeItems_ || cnt.activeItems_.length === 0) return;
  4418.  
  4419.               mlf++;
  4420.               if (mlg > 1e9) mlg = 9;
  4421.               ++mlg;
  4422.  
  4423.               const tmpMaxItemsCount = this.data.maxItemsToDisplay;
  4424.               const reducedMaxItemsToDisplay = MAX_ITEMS_FOR_FULL_FLUSH;
  4425.               let changeMaxItemsToDisplay = false;
  4426.               const activeItemsLen = this.activeItems_.length;
  4427.               if (activeItemsLen > tmpMaxItemsCount && tmpMaxItemsCount > 0) {
  4428.                 logger = true;
  4429.  
  4430.                 groupCollapsed("YouTube Super Fast Chat", " | flushActiveItems78_");
  4431.  
  4432.                 logger && console.log('[Begin]')
  4433.  
  4434.                 console.log('this.activeItems_.length > N', activeItemsLen, tmpMaxItemsCount);
  4435.                 if (ENABLE_REDUCED_MAXITEMS_FOR_FLUSH && lockedMaxItemsToDisplay === tmpMaxItemsCount && lockedMaxItemsToDisplay !== reducedMaxItemsToDisplay) {
  4436.                   console.log('reduce maxitems');
  4437.                   if (tmpMaxItemsCount > reducedMaxItemsToDisplay) {
  4438.                     // as all the rendered chats are already "outdated"
  4439.                     // all old chats shall remove and reduced number of few chats will be rendered
  4440.                     // then restore to the original number
  4441.                     changeMaxItemsToDisplay = true;
  4442.                     this.data.maxItemsToDisplay = reducedMaxItemsToDisplay;
  4443.                     console.log(`'maxItemsToDisplay' is reduced from ${tmpMaxItemsCount} to ${reducedMaxItemsToDisplay}.`)
  4444.                   }
  4445.                   this.activeItems_.splice(0, activeItemsLen - this.data.maxItemsToDisplay);
  4446.                   //   console.log('changeMaxItemsToDisplay 01', this.data.maxItemsToDisplay, oMaxItemsToDisplay, reducedMaxItemsToDisplay)
  4447.  
  4448.                   console.log('new this.activeItems_.length > N', this.activeItems_.length);
  4449.                 } else {
  4450.                   this.activeItems_.splice(0, activeItemsLen - (tmpMaxItemsCount < 900 ? tmpMaxItemsCount : 900));
  4451.  
  4452.                   console.log('new this.activeItems_.length > N', this.activeItems_.length);
  4453.                 }
  4454.               }
  4455.               // it is found that it will render all stacked chats after switching back from background
  4456.               // to avoid lagging in popular livestream with massive chats, trim first before rendering.
  4457.               // this.activeItems_.length > this.data.maxItemsToDisplay && this.activeItems_.splice(0, this.activeItems_.length - this.data.maxItemsToDisplay);
  4458.  
  4459.  
  4460.               const items = (cnt.$ || 0).items;
  4461.  
  4462.               if (USE_WILL_CHANGE_CONTROLLER) {
  4463.                 if (contensWillChangeController && contensWillChangeController.element !== items) {
  4464.                   contensWillChangeController.release();
  4465.                   contensWillChangeController = null;
  4466.                 }
  4467.                 if (!contensWillChangeController) contensWillChangeController = new WillChangeController(items, 'contents');
  4468.               }
  4469.               const wcController = contensWillChangeController;
  4470.               cnt.__intermediate_delay__ = Promise.all([cnt.__intermediate_delay__ || null, immd || null]);
  4471.               wcController && wcController.beforeOper();
  4472.               await Promise.resolve();
  4473.               const acItems = cnt.activeItems_;
  4474.               const len1 = acItems.length;
  4475.               if (!len1) console.warn('cnt.activeItems_.length = 0');
  4476.               let waitFor = [];
  4477.  
  4478.  
  4479.               /** @type {Set<string>} */
  4480.               const imageLinks = new Set();
  4481.  
  4482.               if (ENABLE_PRELOAD_THUMBNAIL || EMOJI_IMAGE_SINGLE_THUMBNAIL || AUTHOR_PHOTO_SINGLE_THUMBNAIL) {
  4483.                 for (const item of acItems) {
  4484.                   fixLiveChatItem(item, imageLinks);
  4485.                 }
  4486.               }
  4487.               if (ENABLE_PRELOAD_THUMBNAIL && kptPF !== null && (kptPF & (8 | 4)) && imageLinks.size > 0) {
  4488.  
  4489.                 // reference: https://github.com/Yuanfang-fe/Blog-X/issues/34
  4490.                 const rel = kptPF & 8 ? 'subresource' : kptPF & 16 ? 'preload' : kptPF & 4 ? 'prefetch' : '';
  4491.                 // preload performs the high priority fetching.
  4492.                 // prefetch delays the chat display if the video resoruce is demanding.
  4493.  
  4494.                 if (rel) {
  4495.  
  4496.                   imageLinks.forEach(imageLink => {
  4497.                     let d = false;
  4498.                     if (SKIP_PRELOAD_EMOJI && imageLink.includes('.ggpht.com/')) return;
  4499.                     const isEmoji = imageLink.includes('/emoji/');
  4500.                     const pretechedSet = isEmoji ? emojiPrefetched : authorPhotoPrefetched;
  4501.                     if (!pretechedSet.has(imageLink)) {
  4502.                       pretechedSet.add(imageLink);
  4503.                       d = true;
  4504.                     }
  4505.                     if (d) {
  4506.                       waitFor.push(linker(null, rel, imageLink, 'image'));
  4507.  
  4508.                     }
  4509.                   })
  4510.  
  4511.                 }
  4512.  
  4513.               }
  4514.  
  4515.               const noVisibleItem1 = ((cnt.visibleItems || 0).length || 0) === 0;
  4516.               skipDontRender = noVisibleItem1;
  4517.               // console.log('ss1', Date.now())
  4518.               if (waitFor.length > 0) {
  4519.                 await Promise.race([new Promise(r => setTimeout(r, 250)), Promise.all(waitFor)]);
  4520.               }
  4521.               waitFor.length = 0;
  4522.               waitFor = null;
  4523.               // console.log('ss2', Date.now())
  4524.               cnt.flushActiveItems66_();
  4525.               const noVisibleItem2 = ((cnt.visibleItems || 0).length || 0) === 0;
  4526.               skipDontRender = noVisibleItem2;
  4527.               const len2 = cnt.activeItems_.length;
  4528.               const bAsync = len1 !== len2;
  4529.               await Promise.resolve();
  4530.               if (wcController) {
  4531.                 if (bAsync) {
  4532.                   cnt.async(() => {
  4533.                     wcController.afterOper();
  4534.                   });
  4535.                 } else {
  4536.                   wcController.afterOper();
  4537.                 }
  4538.               }
  4539.               if (changeMaxItemsToDisplay && this.data.maxItemsToDisplay === reducedMaxItemsToDisplay && tmpMaxItemsCount > reducedMaxItemsToDisplay) {
  4540.                 this.data.maxItemsToDisplay = tmpMaxItemsCount;
  4541.  
  4542.                 logger && console.log(`'maxItemsToDisplay' is restored from ${reducedMaxItemsToDisplay} to ${tmpMaxItemsCount}.`);
  4543.                 //   console.log('changeMaxItemsToDisplay 02', this.data.maxItemsToDisplay, oMaxItemsToDisplay, reducedMaxItemsToDisplay)
  4544.               } else if (changeMaxItemsToDisplay) {
  4545.  
  4546.                 logger && console.log(`'maxItemsToDisplay' cannot be restored`, {
  4547.                   maxItemsToDisplay: this.data.maxItemsToDisplay,
  4548.                   reducedMaxItemsToDisplay,
  4549.                   originalMaxItemsToDisplay: tmpMaxItemsCount
  4550.                 });
  4551.               }
  4552.               logger && console.log('[End]');
  4553.  
  4554.               logger && console.groupEnd();
  4555.  
  4556.               if (noVisibleItem1 && !noVisibleItem2) {
  4557.                 // fix possible no auto scroll issue.
  4558.                 setTimeout(() => cnt.setAtBottom(), 1);
  4559.               }
  4560.  
  4561.               if (!ENABLE_NO_SMOOTH_TRANSFORM) {
  4562.  
  4563.  
  4564.                 const ff = () => {
  4565.  
  4566.                   if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4567.                   //   if (tid !== mlf || cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4568.                   if (!cnt.atBottom && cnt.allowScroll && cnt.hasUserJustInteracted11_ && !cnt.hasUserJustInteracted11_()) {
  4569.  
  4570.                     if (typeof nextBrowserTick !== 'function') {
  4571.                       cnt.scrollToBottom_();
  4572.                       Promise.resolve().then(() => {
  4573.                         if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4574.                         if (!cnt.canScrollToBottom_()) cnt.scrollToBottom_();
  4575.                       });
  4576.                     } else {
  4577.                       nextBrowserTick(() => {
  4578.                         if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4579.                         cnt.scrollToBottom_();
  4580.                       });
  4581.                     }
  4582.  
  4583.                   }
  4584.                 }
  4585.  
  4586.                 ff();
  4587.  
  4588.  
  4589.                 Promise.resolve().then(ff);
  4590.  
  4591.                 // requestAnimationFrame(ff);
  4592.               } else if (true) { // it might not be sticky to bottom when there is a full refresh.
  4593.  
  4594.                 const knt = cnt;
  4595.                 if (!scrollChatFn) {
  4596.                   const cnt = knt;
  4597.                   const f = () => {
  4598.                     const itemScroller = cnt.itemScroller;
  4599.                     if (!itemScroller || itemScroller.isConnected === false || cnt.isAttached === false) return;
  4600.                     if (!cnt.atBottom) {
  4601.                       cnt.scrollToBottom_();
  4602.                     } else if (itemScroller.scrollTop === 0) { // not yet interacted by user; cannot stick to bottom
  4603.                       itemScroller.scrollTop = itemScroller.scrollHeight;
  4604.                     }
  4605.                   };
  4606.                   if (typeof nextBrowserTick !== 'function') {
  4607.                     scrollChatFn = () => Promise.resolve().then(f).then(f);
  4608.                   } else {
  4609.                     scrollChatFn = () => nextBrowserTick(f);
  4610.                   }
  4611.                 }
  4612.  
  4613.                 if (!ENABLE_DELAYED_CHAT_OCCURRENCE) scrollChatFn();
  4614.               }
  4615.  
  4616.               return 1;
  4617.  
  4618.  
  4619.             } catch (e) {
  4620.               console.warn(e);
  4621.             }
  4622.           }
  4623.  
  4624.           mclp.flushActiveItems77_ = function () {
  4625.  
  4626.             return new Promise(resResolve => {
  4627.               try {
  4628.                 const cnt = this;
  4629.                 if (mlf > 1e9) mlf = 9;
  4630.                 let tid = ++mlf;
  4631.                 const hostElement = cnt.hostElement || cnt;
  4632.                 if (tid !== mlf || cnt.isAttached === false || hostElement.isConnected === false) return resResolve();
  4633.                 if (!cnt.activeItems_ || cnt.activeItems_.length === 0) return resResolve();
  4634.  
  4635.                 // 4 times to maxItems to avoid frequent trimming.
  4636.                 // 1 ... 10 ... 20 ... 30 ... 40 ... 50 ... 60 => 16 ... 20 ... 30 ..... 60 ... => 16
  4637.  
  4638.                 const lockedMaxItemsToDisplay = this.data.maxItemsToDisplay944;
  4639.                 this.activeItems_.length > lockedMaxItemsToDisplay * 4 && lockedMaxItemsToDisplay > 4 && this.activeItems_.splice(0, this.activeItems_.length - lockedMaxItemsToDisplay - 1);
  4640.                 if (cnt.canScrollToBottom_()) {
  4641.                   cnt.mutexPromiseFA78 = (cnt.mutexPromiseFA78 || Promise.resolve())
  4642.                     .then(() => cnt.flushActiveItems78_(tid)) // async function
  4643.                     .then((asyncResult) => {
  4644.                       resResolve(asyncResult); // either undefined or 1
  4645.                       resResolve = null;
  4646.                     }).catch((e) => {
  4647.                       console.warn(e);
  4648.                       if (resResolve) resResolve();
  4649.                     });
  4650.                 } else {
  4651.                   resResolve(2);
  4652.                   resResolve = null;
  4653.                 }
  4654.               } catch (e) {
  4655.                 console.warn(e);
  4656.                 if (resResolve) resResolve();
  4657.               }
  4658.  
  4659.  
  4660.             });
  4661.  
  4662.           }
  4663.  
  4664.           mclp.flushActiveItems_ = function () {
  4665.             const cnt = this;
  4666.  
  4667.             if (arguments.length !== 0 || !cnt.activeItems_ || !cnt.canScrollToBottom_) return cnt.flushActiveItems66_.apply(this, arguments);
  4668.  
  4669.             if (cnt.activeItems_.length === 0) {
  4670.               cnt.__intermediate_delay__ = null;
  4671.               return;
  4672.             }
  4673.  
  4674.             const cntData = ((cnt || 0).data || 0);
  4675.             if (cntData.maxItemsToDisplay944 === undefined) {
  4676.               cntData.maxItemsToDisplay944 = null;
  4677.               if (cntData.maxItemsToDisplay > MAX_ITEMS_FOR_TOTAL_DISPLAY) cntData.maxItemsToDisplay = MAX_ITEMS_FOR_TOTAL_DISPLAY;
  4678.               cntData.maxItemsToDisplay944 = cntData.maxItemsToDisplay || null;
  4679.             }
  4680.  
  4681.             // ignore previous __intermediate_delay__ and create a new one
  4682.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4683.               cnt.flushActiveItems77_().then(rt => {  // either undefined or 1 or 2
  4684.                 if (rt === 1) {
  4685.                   resolve(1); // success, scroll to bottom
  4686.                   if (hasMoreMessageState === 1) {
  4687.                     hasMoreMessageState = 0;
  4688.                     const showMore = (cnt.$ || 0)['show-more'];
  4689.                     if (showMore) {
  4690.                       showMore.classList.remove('has-new-messages-miuzp');
  4691.                     }
  4692.                   }
  4693.                 }
  4694.                 else if (rt === 2) {
  4695.                   resolve(2); // success, trim
  4696.                   if (hasMoreMessageState === 0) {
  4697.                     hasMoreMessageState = 1;
  4698.                     const showMore = cnt.$['show-more'];
  4699.                     if (showMore) {
  4700.                       showMore.classList.add('has-new-messages-miuzp');
  4701.                     }
  4702.                   }
  4703.                 }
  4704.                 else resolve(-1); // skip
  4705.               }).catch(e => {
  4706.                 console.warn(e);
  4707.               });
  4708.             });
  4709.  
  4710.           }
  4711.           console.log("flushActiveItems_", "OK");
  4712.         } else {
  4713.           console.log("flushActiveItems_", "NG");
  4714.         }
  4715.  
  4716.         if (SUPPRESS_refreshOffsetContainerHeight_ && typeof mclp.refreshOffsetContainerHeight_ === 'function' && !mclp.refreshOffsetContainerHeight26_ && mclp.refreshOffsetContainerHeight_.length === 0) {
  4717.           assertor(() => fnIntegrity(mclp.refreshOffsetContainerHeight_, '0.31.21'));
  4718.           mclp.refreshOffsetContainerHeight26_ = mclp.refreshOffsetContainerHeight_;
  4719.           mclp.refreshOffsetContainerHeight_ = function () {
  4720.             // var a = this.itemScroller.clientHeight;
  4721.             // this.itemOffset.style.height = this.items.clientHeight + "px";
  4722.             // this.bottomAlignMessages && (this.itemOffset.style.minHeight = a + "px")
  4723.           }
  4724.           console.log("refreshOffsetContainerHeight_", "OK");
  4725.         } else {
  4726.           console.log("refreshOffsetContainerHeight_", "NG");
  4727.         }
  4728.  
  4729.         mclp.delayFlushActiveItemsAfterUserAction11_ = async function () {
  4730.           try {
  4731.             if (mlg > 1e9) mlg = 9;
  4732.             const tid = ++mlg;
  4733.             const keepTrialCond = () => this.atBottom && this.allowScroll && (tid === mlg) && this.isAttached === true && this.activeItems_.length >= 1 && (this.hostElement || 0).isConnected === true;
  4734.             const runCond = () => this.canScrollToBottom_();
  4735.             if (!keepTrialCond()) return;
  4736.             if (runCond()) return this.flushActiveItems_() | 1; // avoid return promise
  4737.             await new Promise(r => setTimeout(r, 80));
  4738.             if (!keepTrialCond()) return;
  4739.             if (runCond()) return this.flushActiveItems_() | 1;
  4740.             await iAFP(this.hostElement).then();
  4741.             // await new Promise(requestAnimationFrame);
  4742.             if (runCond()) return this.flushActiveItems_() | 1;
  4743.           } catch (e) {
  4744.             console.warn(e);
  4745.           }
  4746.         }
  4747.  
  4748.         if ((mclp.atBottomChanged_ || 0).length === 1) {
  4749.           // note: if the scrolling is too frequent, the show more visibility might get wrong.
  4750.  
  4751.           const sfi = fnIntegrity(mclp.atBottomChanged_);
  4752.           if (sfi === '1.73.37') {
  4753.             // https://www.youtube.com/s/desktop/e4d15d2c/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  4754.           } else if (sfi === '1.75.39') {
  4755.             // e.g. https://www.youtube.com/yts/jsbin/live_chat_polymer-vflCyWEBP/live_chat_polymer.js
  4756.           } else {
  4757.             assertor(() => fnIntegrity(mclp.atBottomChanged_, '1.73.37'));
  4758.           }
  4759.  
  4760.           const querySelector = HTMLElement.prototype.querySelector;
  4761.           const U = (element) => ({
  4762.             querySelector: (selector) => querySelector.call(element, selector)
  4763.           });
  4764.  
  4765.           let qid = 0;
  4766.           mclp.atBottomChanged_ = function (a) {
  4767.             let tid = ++qid;
  4768.             let b = this;
  4769.             a ? this.hideShowMoreAsync_ || (this.hideShowMoreAsync_ = this.async(function () {
  4770.               if (tid !== qid) return;
  4771.               U(b.hostElement).querySelector("#show-more").style.visibility = "hidden"
  4772.             }, 200)) : (this.hideShowMoreAsync_ && this.cancelAsync(this.hideShowMoreAsync_),
  4773.               this.hideShowMoreAsync_ = null,
  4774.               U(this.hostElement).querySelector("#show-more").style.visibility = "visible")
  4775.           }
  4776.  
  4777.           console.log("atBottomChanged_", "OK");
  4778.         } else {
  4779.           console.log("atBottomChanged_", "NG");
  4780.         }
  4781.  
  4782.         if ((mclp.onScrollItems_ || 0).length === 1) {
  4783.  
  4784.           assertor(() => fnIntegrity(mclp.onScrollItems_, '1.17.9'));
  4785.           mclp.onScrollItems66_ = mclp.onScrollItems_;
  4786.           mclp.onScrollItems77_ = async function (evt) {
  4787.             if (myw > 1e9) myw = 9;
  4788.             let tid = ++myw;
  4789.  
  4790.             await iAFP(this.hostElement).then();
  4791.             // await new Promise(requestAnimationFrame);
  4792.  
  4793.             if (tid !== myw) {
  4794.               return;
  4795.             }
  4796.  
  4797.             const cnt = this;
  4798.  
  4799.             await Promise.resolve();
  4800.             if (USE_OPTIMIZED_ON_SCROLL_ITEMS) {
  4801.               await Promise.resolve().then(() => {
  4802.                 this.ytRendererBehavior.onScroll(evt);
  4803.               }).then(() => {
  4804.                 if (this.canScrollToBottom_()) {
  4805.                   const hasUserJustInteracted = this.hasUserJustInteracted11_ ? this.hasUserJustInteracted11_() : true;
  4806.                   if (hasUserJustInteracted) {
  4807.                     // only when there is an user action
  4808.                     this.setAtBottom();
  4809.                     return 1;
  4810.                   }
  4811.                 } else {
  4812.                   // no message inserting
  4813.                   this.setAtBottom();
  4814.                   return 1;
  4815.                 }
  4816.               }).then((r) => {
  4817.  
  4818.                 if (this.activeItems_.length) {
  4819.  
  4820.                   if (this.canScrollToBottom_()) {
  4821.                     this.flushActiveItems_();
  4822.                     return 1 && r;
  4823.                   } else if (this.atBottom && this.allowScroll && (this.hasUserJustInteracted11_ && this.hasUserJustInteracted11_())) {
  4824.                     // delayed due to user action
  4825.                     this.delayFlushActiveItemsAfterUserAction11_ && this.delayFlushActiveItemsAfterUserAction11_();
  4826.                     return 0;
  4827.                   }
  4828.                 }
  4829.               }).then((r) => {
  4830.                 if (r) {
  4831.                   // ensure setAtBottom is correctly set
  4832.                   this.setAtBottom();
  4833.                 }
  4834.               });
  4835.             } else {
  4836.               cnt.onScrollItems66_(evt);
  4837.             }
  4838.  
  4839.             await Promise.resolve();
  4840.  
  4841.           }
  4842.  
  4843.           mclp.onScrollItems_ = function (evt) {
  4844.  
  4845.             const cnt = this;
  4846.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4847.               cnt.onScrollItems77_(evt).then(() => {
  4848.                 resolve();
  4849.               });
  4850.             });
  4851.           }
  4852.           console.log("onScrollItems_", "OK");
  4853.         } else {
  4854.           console.log("onScrollItems_", "NG");
  4855.         }
  4856.  
  4857.         if ((mclp.handleLiveChatActions_ || 0).length === 1) {
  4858.  
  4859.           const sfi = fnIntegrity(mclp.handleLiveChatActions_);
  4860.           if (sfi === '1.39.20') {
  4861.             // TBC
  4862.           } else if (sfi === '1.31.17') {
  4863.             // original
  4864.           } else {
  4865.             assertor(() => fnIntegrity(mclp.handleLiveChatActions_, '1.31.17'));
  4866.           }
  4867.  
  4868.           mclp.handleLiveChatActions66_ = mclp.handleLiveChatActions_;
  4869.  
  4870.           mclp.handleLiveChatActions77_ = async function (arr) {
  4871.             if (typeof (arr || 0).length !== 'number') {
  4872.               this.handleLiveChatActions66_(arr);
  4873.               return;
  4874.             }
  4875.             if (mzt > 1e9) mzt = 9;
  4876.             let tid = ++mzt;
  4877.  
  4878.             if (zarr === null) zarr = arr;
  4879.             else Array.prototype.push.apply(zarr, arr);
  4880.             arr = null;
  4881.  
  4882.             await iAFP(this.hostElement).then();
  4883.             // await new Promise(requestAnimationFrame);
  4884.  
  4885.             if (tid !== mzt || zarr === null) {
  4886.               return;
  4887.             }
  4888.  
  4889.             const carr = zarr;
  4890.             zarr = null;
  4891.  
  4892.             await Promise.resolve();
  4893.             this.handleLiveChatActions66_(carr);
  4894.             await Promise.resolve();
  4895.  
  4896.           }
  4897.  
  4898.           mclp.handleLiveChatActions_ = function (arr) {
  4899.  
  4900.             const cnt = this;
  4901.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4902.               cnt.handleLiveChatActions77_(arr).then(() => {
  4903.                 resolve();
  4904.               });
  4905.             });
  4906.           }
  4907.           console.log("handleLiveChatActions_", "OK");
  4908.         } else {
  4909.           console.log("handleLiveChatActions_", "NG");
  4910.         }
  4911.  
  4912.         mclp.hasUserJustInteracted11_ = () => {
  4913.           const t = dateNow();
  4914.           return (t - lastWheel < 80) || currentMouseDown || currentTouchDown || (t - lastUserInteraction < 80);
  4915.         }
  4916.  
  4917.         if ((mclp.canScrollToBottom_ || 0).length === 0) {
  4918.  
  4919.           assertor(() => fnIntegrity(mclp.canScrollToBottom_, '0.9.5'));
  4920.  
  4921.           mclp.canScrollToBottom_ = function () {
  4922.             return this.atBottom && this.allowScroll && !this.hasUserJustInteracted11_();
  4923.           }
  4924.  
  4925.           console.log("canScrollToBottom_", "OK");
  4926.         } else {
  4927.           console.log("canScrollToBottom_", "NG");
  4928.         }
  4929.  
  4930.         if (ENABLE_NO_SMOOTH_TRANSFORM) {
  4931.  
  4932.           mclp.isSmoothScrollEnabled_ = function () {
  4933.             return false;
  4934.           }
  4935.  
  4936.           mclp.maybeResizeScrollContainer_ = function () {
  4937.             //
  4938.           }
  4939.  
  4940.           mclp.refreshOffsetContainerHeight_ = function () {
  4941.             //
  4942.           }
  4943.  
  4944.           mclp.smoothScroll_ = function () {
  4945.             //
  4946.           }
  4947.  
  4948.           mclp.resetSmoothScroll_ = function () {
  4949.             //
  4950.           }
  4951.           console.log("ENABLE_NO_SMOOTH_TRANSFORM", "OK");
  4952.         } else {
  4953.           console.log("ENABLE_NO_SMOOTH_TRANSFORM", "NG");
  4954.         }
  4955.  
  4956.         if (typeof mclp.forEachItem_ === 'function' && !mclp.forEachItem66_ && skipErrorForhandleAddChatItemAction_ && mclp.forEachItem_.length === 1) {
  4957.  
  4958.           mclp.forEachItem66_ = mclp.forEachItem_;
  4959.           mclp.forEachItem_ = function (a) {
  4960.  
  4961.             // ƒ (a){this.visibleItems.forEach(a.bind(this,"visibleItems"));this.activeItems_.forEach(a.bind(this,"activeItems_"))}
  4962.  
  4963.             try {
  4964.  
  4965.               let items801 = false;
  4966.               if (typeof a === 'function') {
  4967.                 const items = this.items;
  4968.                 if (items instanceof HTMLDivElement) {
  4969.                   const ev = this.visibleItems;
  4970.                   const ea = this.activeItems_;
  4971.                   if (ev && ea && ev.length >= 0 && ea.length >= 0) {
  4972.                     items801 = items;
  4973.                   }
  4974.                 }
  4975.               }
  4976.  
  4977.               if (items801) {
  4978.                 items801.__children801__ = 1;
  4979.                 const res = this.forEachItem66_(a);
  4980.                 items801.__children801__ = 0;
  4981.                 return res;
  4982.               }
  4983.  
  4984.             } catch (e) { }
  4985.             return this.forEachItem66_(a);
  4986.  
  4987.  
  4988.             // this.visibleItems.forEach((val, idx, arr)=>{
  4989.             //   a.call(this, 'visibleItems', val, idx, arr);
  4990.             // });
  4991.  
  4992.             // this.activeItems_.forEach((val, idx, arr)=>{
  4993.             //   a.call(this, 'activeItems_', val, idx, arr);
  4994.             // });
  4995.  
  4996.  
  4997.  
  4998.           }
  4999.  
  5000.  
  5001.         }
  5002.  
  5003.         if (typeof mclp.handleAddChatItemAction_ === 'function' && !mclp.handleAddChatItemAction66_ && FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION && (EMOJI_IMAGE_SINGLE_THUMBNAIL || AUTHOR_PHOTO_SINGLE_THUMBNAIL)) {
  5004.  
  5005.           mclp.handleAddChatItemAction66_ = mclp.handleAddChatItemAction_;
  5006.           mclp.handleAddChatItemAction_ = function (a) {
  5007.             try {
  5008.               if (a && typeof a === 'object' && !('length' in a)) {
  5009.                 fixLiveChatItem(a.item, null);
  5010.                 console.assert(arguments[0] === a);
  5011.               }
  5012.             } catch (e) { console.warn(e) }
  5013.             let res;
  5014.             if (skipErrorForhandleAddChatItemAction_) { // YouTube Native Engine Issue
  5015.               try {
  5016.                 res = this.handleAddChatItemAction66_.apply(this, arguments);
  5017.               } catch (e) {
  5018.                 if (e && (e.message || '').includes('.querySelector(')) {
  5019.                   console.log("skipErrorForhandleAddChatItemAction_", e.message);
  5020.                 } else {
  5021.                   throw e;
  5022.                 }
  5023.               }
  5024.             } else {
  5025.               res = this.handleAddChatItemAction66_.apply(this, arguments);
  5026.             }
  5027.             return res;
  5028.           }
  5029.  
  5030.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION) console.log("handleAddChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION ]", "OK");
  5031.         } else {
  5032.  
  5033.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION) console.log("handleAddChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION ]", "OK");
  5034.         }
  5035.  
  5036.  
  5037.         if (typeof mclp.handleReplaceChatItemAction_ === 'function' && !mclp.handleReplaceChatItemAction66_ && FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT && (EMOJI_IMAGE_SINGLE_THUMBNAIL || AUTHOR_PHOTO_SINGLE_THUMBNAIL)) {
  5038.  
  5039.           mclp.handleReplaceChatItemAction66_ = mclp.handleReplaceChatItemAction_;
  5040.           mclp.handleReplaceChatItemAction_ = function (a) {
  5041.             try {
  5042.               if (a && typeof a === 'object' && !('length' in a)) {
  5043.                 fixLiveChatItem(a.replacementItem, null);
  5044.                 console.assert(arguments[0] === a);
  5045.               }
  5046.             } catch (e) { console.warn(e) }
  5047.             return this.handleReplaceChatItemAction66_.apply(this, arguments);
  5048.           }
  5049.  
  5050.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT) console.log("handleReplaceChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT ]", "OK");
  5051.         } else {
  5052.  
  5053.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT) console.log("handleReplaceChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT ]", "OK");
  5054.         }
  5055.  
  5056.         console.log("[End]");
  5057.         console.groupEnd();
  5058.  
  5059.       }).catch(console.warn);
  5060.  
  5061.  
  5062.       const tickerContainerSetAttribute = function (attrName, attrValue) { // ensure '14.30000001%'.toFixed(1)
  5063.  
  5064.         let yd = (this.__dataHost || insp(this).__dataHost || 0).__data;
  5065.  
  5066.         if (arguments.length === 2 && attrName === 'style' && yd && attrValue) {
  5067.  
  5068.           // let v = yd.containerStyle.privateDoNotAccessOrElseSafeStyleWrappedValue_;
  5069.           let v = `${attrValue}`;
  5070.           // conside a ticker is 101px width
  5071.           // 1% = 1.01px
  5072.           // 0.2% = 0.202px
  5073.  
  5074.  
  5075.           const ratio1 = (yd.ratio * 100);
  5076.           if (ratio1 > -1) { // avoid NaN
  5077.  
  5078.             // countdownDurationMs
  5079.             // 600000 - 0.2%    <1% = 6s>  <0.2% = 1.2s>
  5080.             // 300000 - 0.5%    <1% = 3s>  <0.5% = 1.5s>
  5081.             // 150000 - 1%    <1% = 1.5s>
  5082.             // 75000 - 2%    <1% =0.75s > <2% = 1.5s>
  5083.             // 30000 - 5%    <1% =0.3s > <5% = 1.5s>
  5084.  
  5085.             // 99px * 5% = 4.95px
  5086.  
  5087.             // 15000 - 10%    <1% =0.15s > <10% = 1.5s>
  5088.  
  5089.  
  5090.             // 1% Duration
  5091.  
  5092.             let ratio2 = ratio1;
  5093.  
  5094.             const ydd = yd.data;
  5095.             if (ydd) {
  5096.  
  5097.               const d1 = ydd.durationSec;
  5098.               const d2 = ydd.fullDurationSec;
  5099.  
  5100.               // @ step timing [min. 0.2%]
  5101.               let numOfSteps = 500;
  5102.               if ((d1 === d2 || (d1 + 1 === d2)) && d1 > 1) {
  5103.                 if (d2 > 400) numOfSteps = 500; // 0.2%
  5104.                 else if (d2 > 200) numOfSteps = 200; // 0.5%
  5105.                 else if (d2 > 100) numOfSteps = 100; // 1%
  5106.                 else if (d2 > 50) numOfSteps = 50; // 2%
  5107.                 else if (d2 > 25) numOfSteps = 20; // 5% (max => 99px * 5% = 4.95px)
  5108.                 else numOfSteps = 20;
  5109.               }
  5110.               if (numOfSteps > TICKER_MAX_STEPS_LIMIT) numOfSteps = TICKER_MAX_STEPS_LIMIT;
  5111.               if (numOfSteps < 5) numOfSteps = 5;
  5112.  
  5113.               const rd = numOfSteps / 100.0;
  5114.  
  5115.               ratio2 = Math.round(ratio2 * rd) / rd;
  5116.  
  5117.               // ratio2 = Math.round(ratio2 * 5) / 5;
  5118.               ratio2 = ratio2.toFixed(1);
  5119.               v = v.replace(`${ratio1}%`, `${ratio2}%`).replace(`${ratio1}%`, `${ratio2}%`);
  5120.  
  5121.               if (yd.__style_last__ === v) return;
  5122.               yd.__style_last__ = v;
  5123.               // do not consider any delay here.
  5124.               // it shall be inside the looping for all properties changes. all the css background ops are in the same microtask.
  5125.  
  5126.             }
  5127.           }
  5128.  
  5129.           HTMLElement.prototype.setAttribute.call(dr(this), attrName, v);
  5130.  
  5131.  
  5132.         } else {
  5133.           HTMLElement.prototype.setAttribute.apply(dr(this), arguments);
  5134.         }
  5135.  
  5136.       };
  5137.  
  5138.  
  5139.       const fpTicker = (renderer) => {
  5140.         const cnt = insp(renderer);
  5141.         assertor(() => typeof (cnt || 0).is === 'string');
  5142.         assertor(() => ((cnt || 0).hostElement || 0).nodeType === 1);
  5143.         const container = (cnt.$ || 0).container;
  5144.         if (container) {
  5145.           assertor(() => (container || 0).nodeType === 1);
  5146.           assertor(() => typeof container.setAttribute === 'function');
  5147.           container.setAttribute = tickerContainerSetAttribute;
  5148.         } else {
  5149.           console.warn(`"container" does not exist in ${cnt.is}`);
  5150.         }
  5151.       };
  5152.  
  5153.  
  5154.       const tags = [
  5155.         "yt-live-chat-ticker-paid-message-item-renderer",
  5156.         "yt-live-chat-ticker-paid-sticker-item-renderer",
  5157.         "yt-live-chat-ticker-renderer",
  5158.         "yt-live-chat-ticker-sponsor-item-renderer"
  5159.       ];
  5160.  
  5161.       const tagsItemRenderer = [
  5162.         "yt-live-chat-ticker-paid-message-item-renderer",
  5163.         "yt-live-chat-ticker-paid-sticker-item-renderer",
  5164.         "yt-live-chat-ticker-renderer",
  5165.         "yt-live-chat-ticker-sponsor-item-renderer"
  5166.       ];
  5167.  
  5168.  
  5169.       Promise.all(tags.map(tag => customElements.whenDefined(tag))).then(() => {
  5170.  
  5171.         mightFirstCheckOnYtInit();
  5172.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-ticker-... hacks");
  5173.         console.log("[Begin]");
  5174.  
  5175.         let dummyValueForStyleReturn = null;
  5176.  
  5177.         const genDummyValueForStyleReturn = () => {
  5178.           let s = `--nx:82;`
  5179.           let ro = {
  5180.             "privateDoNotAccessOrElseSafeStyleWrappedValue_": s,
  5181.             "implementsGoogStringTypedString": true
  5182.           };
  5183.           ro.getTypedStringValue = ro.toString = function () { return this.privateDoNotAccessOrElseSafeStyleWrappedValue_ };
  5184.           return ro;
  5185.         }
  5186.  
  5187.         let isCSSPropertySupported_ = null;
  5188.         const isCSSPropertySupported = () => {
  5189.  
  5190.           // @property --ticker-rtime
  5191.  
  5192.           if (typeof isCSSPropertySupported_ === 'boolean') return isCSSPropertySupported_;
  5193.           isCSSPropertySupported_ = false;
  5194.  
  5195.           if (typeof CSS !== 'object' || typeof (CSS || 0).registerProperty !== 'function') return false;
  5196.           const documentElement = document.documentElement;
  5197.           if (!documentElement) {
  5198.             console.warn('document.documentElement is not found');
  5199.             return false;
  5200.           }
  5201.           if (`${getComputedStyleCached(documentElement).getPropertyValue('--ticker-rtime')}`.length === 0) {
  5202.             return false;
  5203.           }
  5204.  
  5205.           const ae = animate.call(documentElement,
  5206.             [
  5207.               { '--ticker-rtime': '70%' },
  5208.               { '--ticker-rtime': '30%' }
  5209.             ],
  5210.             {
  5211.               fill: "forwards",
  5212.               duration: 1000 * 40,
  5213.               easing: 'linear'
  5214.             }
  5215.           );
  5216.  
  5217.           let animatedValue = getComputedStyleCached(document.documentElement).getPropertyValue('--ticker-rtime');
  5218.           ae.finish();
  5219.           if (`${animatedValue}`.length !== 3) return false;
  5220.  
  5221.           isCSSPropertySupported_ = true;
  5222.           return true;
  5223.  
  5224.         };
  5225.  
  5226.  
  5227.         let windowShownAt = -1;
  5228.         const setupEventForWindowShownAt = () => {
  5229.           window.addEventListener('visibilitychange', () => {
  5230.             if (document.visibilityState === 'visible') windowShownAt = Date.now();
  5231.             else windowShownAt = 0;
  5232.           }, false);
  5233.         }
  5234.  
  5235.         const dProto = {
  5236.  
  5237.           attachedForTickerInit: function () {
  5238.  
  5239.             fpTicker(this.hostElement || this);
  5240.             return this.attached77();
  5241.  
  5242.           },
  5243.  
  5244.  
  5245.           // doAnimator
  5246.  
  5247.           _makeAnimator: function () {
  5248.             if (this._r782) return;
  5249.             // if (!this.isAttached) return;
  5250.             if (!this._runnerAE) {
  5251.               /** @type {HTMLElement | null} */
  5252.               const aElement = (this.$ || 0).container;
  5253.               if (!aElement) return console.warn("this.$.container is undefined");
  5254.               const da = this.data;
  5255.               if (!da || !da.startBackgroundColor || !da.endBackgroundColor) return console.warn("this.data is undefined or incorrect");
  5256.               const c1 = this.colorFromDecimal(da.startBackgroundColor);
  5257.               const c2 = this.colorFromDecimal(da.endBackgroundColor);
  5258.               if (typeof c1 !== 'string' || typeof c2 !== 'string') return console.warn('c1, c2 is not a string');
  5259.  
  5260.               // if (!this.__tickerBackgroundInitialChecked__) {
  5261.               //   this.constructor.prototype.__tickerBackgroundInitialChecked__ = true;
  5262.               //   console.log('__tickerBackgroundInitialChecked__')
  5263.               //   this._checkTickerBackgroundChanged();
  5264.               // }
  5265.  
  5266.               aElement.style.setProperty('--ticker-c1', c1);
  5267.               aElement.style.setProperty('--ticker-c2', c2);
  5268.               aElement.classList.add(runTickerClassName);
  5269.               const p = (this.countdownMs / this.countdownDurationMs) * 100;
  5270.               // this._aeStartV = this.countdownMs;
  5271.               // this._aeStartT = this.countdownDurationMs;
  5272.               if (!(p >= 0 && p <= 100)) {
  5273.                 console.warn('incorrect time ratio', p);
  5274.               } else {
  5275.                 /*
  5276.                 const u0 = p.toFixed(4) + '%';
  5277.                 this._runnerAE = animate.call(aElement,
  5278.                   [
  5279.                     { '--ticker-rtime': u0 },
  5280.                     { '--ticker-rtime': '0%' }
  5281.                   ]
  5282.                   ,
  5283.                   {
  5284.                     fill: "forwards",
  5285.                     duration: this.countdownMs,
  5286.                     easing: "linear"
  5287.                   }
  5288.                 );
  5289.                 */
  5290.  
  5291.                 let timingFn = 'linear';
  5292.  
  5293.                 const totalDuration = this.countdownDurationMs;
  5294.  
  5295.                 if (ATTEMPT_ANIMATED_TICKER_BACKGROUND === 'steps') {
  5296.  
  5297.                   // @ step timing [min. 0.2%]
  5298.                   let stepInterval = 0.2; // unit: %
  5299.                   if (totalDuration > 400000) stepInterval = 0.2;
  5300.                   else if (totalDuration > 200000) stepInterval = 0.5;
  5301.                   else if (totalDuration > 100000) stepInterval = 1;
  5302.                   else if (totalDuration > 50000) stepInterval = 2;
  5303.                   else if (totalDuration > 25000) stepInterval = 5;
  5304.                   else stepInterval = 5;
  5305.  
  5306.                   let numOfSteps = Math.round(100 / stepInterval);
  5307.  
  5308.                   if (numOfSteps > TICKER_MAX_STEPS_LIMIT) numOfSteps = TICKER_MAX_STEPS_LIMIT;
  5309.                   if (numOfSteps < 5) numOfSteps = 5;
  5310.  
  5311.                   timingFn = `steps(${numOfSteps}, end)`;
  5312.  
  5313.                 }
  5314.  
  5315.  
  5316.                 /** @type {Animation} */
  5317.                 const ae = animate.call(aElement,
  5318.                   [
  5319.                     { '--ticker-rtime': '100%' },
  5320.                     { '--ticker-rtime': '0%' }
  5321.                   ]
  5322.                   ,
  5323.                   {
  5324.                     fill: "forwards",
  5325.                     duration: totalDuration,
  5326.                     easing: timingFn
  5327.                   }
  5328.                 );
  5329.  
  5330.                 this._runnerAE = ae;
  5331.  
  5332.                 ae.onfinish = (event) => {
  5333.                   this.onfinish = null;
  5334.                   if (this._runnerAE !== ae) return;
  5335.                   if (this.isAttached === true && !this._r782 && ((this.$ || 0).container || 0).isConnected === true) {
  5336.                     this._aeFinished(event);
  5337.                   }
  5338.                 }
  5339.  
  5340.                 let bq = (1.0 - (this.countdownMs / totalDuration)) * totalDuration;
  5341.  
  5342.                 if (bq >= 0 && bq <= totalDuration) {
  5343.  
  5344.                   if (bq > totalDuration - 1) {
  5345.                     ae.currentTime = bq;
  5346.                     // setTimeout(() => {
  5347.                     //   if (this._runnerAE === ae && ae.onfinish) ae.onfinish();
  5348.                     // }, 1);
  5349.                   } else {
  5350.                     ae.currentTime = bq;
  5351.                   }
  5352.                 } else {
  5353.                   console.warn('Error on setting _runnerAE.currentTime!');
  5354.                 }
  5355.  
  5356.  
  5357.                 aeConstructor = ae.constructor; // constructor is from iframe
  5358.                 return ae;
  5359.               }
  5360.             } else {
  5361.               if (!aeConstructor) return console.warn('aeConstructor is undefined');
  5362.               // assume just time update
  5363.               const ae = this._runnerAE;
  5364.               if (!(ae instanceof aeConstructor)) return console.warn('this._runnerAE is not Animation');
  5365.               if (ae.playState !== 'paused') console.warn('ae.playState !== paused');
  5366.               let p = (this.countdownMs / this.countdownDurationMs) * 100;
  5367.               if (!(p >= 0 && p <= 100)) {
  5368.                 console.warn('incorrect time ratio', p);
  5369.               } else {
  5370.                 // let u0 = p.toFixed(4) + '%'
  5371.                 /*
  5372.                 ae.effect.setKeyframes([
  5373.                   { '--ticker-rtime': u0 },
  5374.                   { '--ticker-rtime': '0%' }
  5375.                 ]);
  5376.                 ae.effect.updateTiming({ duration: this.countdownMs });
  5377.                 */
  5378.                 // ae.currentTime = 0;
  5379.  
  5380.  
  5381.  
  5382.                 let bq = (1.0 - (this.countdownMs / this.countdownDurationMs)) * this.countdownDurationMs;
  5383.                 if (bq >= 0 && bq <= this.countdownDurationMs) {
  5384.  
  5385.                   this._runnerAE.currentTime = bq
  5386.                 } else {
  5387.                   console.warn('Error on setting _runnerAE.currentTime!');
  5388.                 }
  5389.  
  5390.  
  5391.                 ae.play();
  5392.                 return ae;
  5393.               }
  5394.             }
  5395.           },
  5396.  
  5397.           _aeFinished: function (event) {
  5398.  
  5399.             if (this._r782) return;
  5400.  
  5401.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5402.               this._throwOut();
  5403.               return;
  5404.             }
  5405.  
  5406.             if (!this._runnerAE) console.warn('Error in .updateTimeout; this._runnerAE is undefined');
  5407.  
  5408.             let lc = window.performance.now();
  5409.             this.countdownMs = Math.max(0, this.countdownMs - (lc - this.lastCountdownTimeMs));
  5410.             if (this.countdownMs > this.countdownDurationMs) this.countdownMs = this.countdownDurationMs;
  5411.             this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = lc;
  5412.             if (this.countdownMs > 76) console.warn('Warning: this.countdownMs is not zero when finished!', this.countdownMs, this, event); // just warning.
  5413.  
  5414.             this.countdownMs = 0;
  5415.             this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = null;
  5416.  
  5417.             if (this.isAttached) {
  5418.               let fastRemoved = false;
  5419.               if (Date.now() - windowShownAt < 80 && typeof this.requestRemoval === 'function') {
  5420.                 // no animation if the video page is switched from background to foreground
  5421.                 // this.hostElement.style.display = 'none';
  5422.                 const id = (this.data || 0).id || 0;
  5423.                 if (!id) this.data = { id: 1 }
  5424.                 try {
  5425.                   this.requestRemoval();
  5426.                   fastRemoved = true;
  5427.                 } catch (e) {
  5428.  
  5429.                 }
  5430.               }
  5431.  
  5432.               if (!fastRemoved) {
  5433.                 "auto" === this.hostElement.style.width && this.setContainerWidth();
  5434.                 this.slideDown();
  5435.               }
  5436.             }
  5437.  
  5438.  
  5439.  
  5440.           },
  5441.  
  5442.  
  5443.           /** @type {()} */
  5444.           _throwOut: function () {
  5445.             this._r782 = 1;
  5446.             Promise.resolve().then(() => {
  5447.               if (typeof this.requestRemoval === 'function') {
  5448.                 const id = (this.data || 0).id;
  5449.                 if (!id) this.data = { id: 1 };
  5450.                 try {
  5451.                   this.requestRemoval();
  5452.                 } catch (e) { }
  5453.               }
  5454.               this.detached();
  5455.               if (this.__dataClientsReady === true) this.__dataClientsReady = false;
  5456.               if (this.__dataEnabled === true) this.__dataEnabled = false;
  5457.               if (this.__dataReady === true) this.__dataReady = false;
  5458.               this.data = null;
  5459.               this.countdownMs = 0;
  5460.               this.lastCountdownTimeMs = null;
  5461.               const hm = this.hostElement || this;
  5462.               if (hm.parentNode) hm.remove();
  5463.               for (let t; t = hm.firstChild;) t.remove();
  5464.             }).catch(e => {
  5465.               console.warn(e);
  5466.             });
  5467.           },
  5468.  
  5469.  
  5470.           // doTimerFnModification
  5471.  
  5472.  
  5473.           /** @type {(a, b)} */
  5474.           startCountdownForTimerFnModA: function (a, b) { // .startCountdown(a.durationSec, a.fullDurationSec)
  5475.             try {
  5476.               // a.durationSec [s] => countdownMs [ms]
  5477.               // a.fullDurationSec [s] => countdownDurationMs [ms] OR countdownMs [ms]
  5478.               // lastCountdownTimeMs => raf ongoing
  5479.               // lastCountdownTimeMs = 0 when rafId = 0 OR countdownDurationMs = 0
  5480.  
  5481.               if (this._r782) return;
  5482.  
  5483.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5484.                 this._throwOut();
  5485.                 return;
  5486.               }
  5487.  
  5488.               // TimerFnModA
  5489.  
  5490.               b = void 0 === b ? 0 : b;
  5491.               if (void 0 !== a) {
  5492.  
  5493.                 this.countdownMs = 1E3 * a; // decreasing from durationSec[s] to zero
  5494.                 this.countdownDurationMs = b ? 1E3 * b : this.countdownMs; // constant throughout the animation
  5495.                 if (!(this.lastCountdownTimeMs || this.isAnimationPaused)) {
  5496.                   this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = performance.now()
  5497.                   this.rafId = 1
  5498.                   if (this._runnerAE) console.warn('Error in .startCountdown; this._runnerAE already created.')
  5499.                   this.detlaSincePausedSecs = 0;
  5500.                   const ae = this._makeAnimator();
  5501.                   if (!ae) console.warn('Error in startCountdown._makeAnimator()');
  5502.  
  5503.                   // if (playerProgressChangedArg1 === null) {
  5504.                   //   console.log('startCountdownForTimerFnModA', this.data)
  5505.                   // }
  5506.  
  5507.                   if (isPlayProgressTriggered && this.isAnimationPaused !== true && this.__ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED__) {
  5508.  
  5509.  
  5510.  
  5511.  
  5512.                     this.playerProgressSec = lastPlayerProgress > 0 ? lastPlayerProgress : 0; // save the progress first
  5513.                     this.isAnimationPaused = true; // trigger isAnimationPausedChanged
  5514.                     this.detlaSincePausedSecs = 0;
  5515.                     this._forceNoDetlaSincePausedSecs783 = 1; // reset this.detlaSincePausedSecs = 0 when resumed
  5516.  
  5517.                     relayPromise = relayPromise || new PromiseExternal();
  5518.  
  5519.                     relayPromise.then(() => {
  5520.                       if (this.isAttached === true && this.countdownDurationMs > 0 && this.isAnimationPaused === true && this.isReplayPaused !== true) {
  5521.                         this.isAnimationPaused = false;
  5522.                       }
  5523.                     });
  5524.  
  5525.  
  5526.                   }
  5527.  
  5528.  
  5529.  
  5530.                 }
  5531.               }
  5532.  
  5533.             } catch (e) {
  5534.               console.warn(e);
  5535.             }
  5536.  
  5537.           },
  5538.  
  5539.  
  5540.  
  5541.           /** @type {(a, b)} */
  5542.           startCountdownForTimerFnModT: function (a, b) { // .startCountdown(a.durationSec, a.fullDurationSec)
  5543.             try {
  5544.               // a.durationSec [s] => countdownMs [ms]
  5545.               // a.fullDurationSec [s] => countdownDurationMs [ms] OR countdownMs [ms]
  5546.               // lastCountdownTimeMs => raf ongoing
  5547.               // lastCountdownTimeMs = 0 when rafId = 0 OR countdownDurationMs = 0
  5548.  
  5549.               if (this._r782) return;
  5550.  
  5551.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5552.                 this._throwOut();
  5553.                 return;
  5554.               }
  5555.  
  5556.               // TimerFnModT
  5557.  
  5558.               // console.log('cProto.startCountdown', tag) // yt-live-chat-ticker-sponsor-item-renderer
  5559.               if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
  5560.               b = void 0 === b ? 0 : b;
  5561.               void 0 !== a && (this.countdownMs = 1E3 * a,
  5562.                 this.countdownDurationMs = b ? 1E3 * b : this.countdownMs,
  5563.                 this.ratio = 1,
  5564.                 this.lastCountdownTimeMs || this.isAnimationPaused || (this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = performance.now(),
  5565.                   this.rafId = rafHub.request(this.boundUpdateTimeout37_)))
  5566.  
  5567.             } catch (e) {
  5568.               console.warn(e);
  5569.             }
  5570.  
  5571.           },
  5572.  
  5573.  
  5574.           /** @type {(a,)} */
  5575.           updateTimeoutForTimerFnModA: function (a) {
  5576.  
  5577.             try {
  5578.  
  5579.               // _lastCountdownTimeMsX0 is required since performance.now() is not fully the same with rAF timestamp
  5580.  
  5581.               if (this._r782) return;
  5582.  
  5583.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5584.                 this._throwOut();
  5585.                 return;
  5586.               }
  5587.  
  5588.               // TimerFnModA
  5589.  
  5590.               if (!this._runnerAE) console.warn('Error in .updateTimeout; this._runnerAE is undefined');
  5591.               if (this.lastCountdownTimeMs !== this._lastCountdownTimeMsX0) {
  5592.                 this.countdownMs = Math.max(0, this.countdownMs - (a - (this.lastCountdownTimeMs || 0)));
  5593.               }
  5594.               if (this.countdownMs > this.countdownDurationMs) this.countdownMs = this.countdownDurationMs;
  5595.               if (this.isAttached && this.countdownMs) {
  5596.                 this.lastCountdownTimeMs = a
  5597.                 const ae = this._makeAnimator(); // request raf
  5598.                 if (!ae) console.warn('Error in startCountdown._makeAnimator()');
  5599.               } else {
  5600.                 (this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = null,
  5601.                   this.isAttached && ("auto" === this.hostElement.style.width && this.setContainerWidth(),
  5602.                     this.slideDown()));
  5603.               }
  5604.  
  5605.             } catch (e) {
  5606.               console.warn(e);
  5607.             }
  5608.  
  5609.  
  5610.           },
  5611.  
  5612.           /** @type {(a,)} */
  5613.           updateTimeoutForTimerFnModT: function (a) {
  5614.  
  5615.             try {
  5616.  
  5617.               // _lastCountdownTimeMsX0 is required since performance.now() is not fully the same with rAF timestamp
  5618.  
  5619.               if (this._r782) return;
  5620.  
  5621.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5622.                 this._throwOut();
  5623.                 return;
  5624.               }
  5625.  
  5626.               // TimerFnModT
  5627.  
  5628.               // console.log('cProto.updateTimeout', tag) // yt-live-chat-ticker-sponsor-item-renderer
  5629.               if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
  5630.               if (this.lastCountdownTimeMs !== this._lastCountdownTimeMsX0) {
  5631.                 this.countdownMs = Math.max(0, this.countdownMs - (a - (this.lastCountdownTimeMs || 0)));
  5632.               }
  5633.               // console.log(703, this.countdownMs)
  5634.               this.ratio = this.countdownMs / this.countdownDurationMs;
  5635.               this.isAttached && this.countdownMs ? (this.lastCountdownTimeMs = a,
  5636.                 this.rafId = rafHub.request(this.boundUpdateTimeout37_)) : (this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = null,
  5637.                   this.isAttached && ("auto" === this.hostElement.style.width && this.setContainerWidth(),
  5638.                     this.slideDown()))
  5639.  
  5640.  
  5641.             } catch (e) {
  5642.               console.warn(e);
  5643.             }
  5644.           },
  5645.  
  5646.           /** @type {(a,b)} */
  5647.           isAnimationPausedChangedForTimerFnModA: function (a, b) {
  5648.  
  5649.             if (this._r782) return;
  5650.  
  5651.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5652.               this._throwOut();
  5653.               return;
  5654.             }
  5655.             let forceNoDetlaSincePausedSecs783 = this._forceNoDetlaSincePausedSecs783;
  5656.             this._forceNoDetlaSincePausedSecs783 = 0;
  5657.  
  5658.             Promise.resolve().then(() => {
  5659.  
  5660.               if (a) {
  5661.  
  5662.                 if (this._runnerAE && this._runnerAE.playState === 'running') {
  5663.  
  5664.                   this._runnerAE.pause()
  5665.                   let lc = window.performance.now();
  5666.                   this.countdownMs = Math.max(0, this.countdownMs - (lc - this.lastCountdownTimeMs));
  5667.                   if (this.countdownMs > this.countdownDurationMs) this.countdownMs = this.countdownDurationMs;
  5668.                   this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = lc;
  5669.                 }
  5670.  
  5671.               } else if (!a && b) {
  5672.  
  5673.  
  5674.                 if (forceNoDetlaSincePausedSecs783) this.detlaSincePausedSecs = 0;
  5675.                 a = this.detlaSincePausedSecs ? (this.lastCountdownTimeMs || 0) + 1000 * this.detlaSincePausedSecs : (this.lastCountdownTimeMs || 0);
  5676.                 this.detlaSincePausedSecs = 0;
  5677.                 this.updateTimeout(a);
  5678.                 this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = window.performance.now();
  5679.  
  5680.               }
  5681.  
  5682.  
  5683.             }).catch(e => {
  5684.               console.log(e);
  5685.             });
  5686.  
  5687.  
  5688.  
  5689.           },
  5690.  
  5691.  
  5692.           /** @type {(a,b)} */
  5693.           isAnimationPausedChangedForTimerFnModT: function (a, b) {
  5694.  
  5695.             if (this._r782) return;
  5696.  
  5697.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5698.               this._throwOut();
  5699.               return;
  5700.             }
  5701.             let forceNoDetlaSincePausedSecs783 = this._forceNoDetlaSincePausedSecs783;
  5702.             this._forceNoDetlaSincePausedSecs783 = 0;
  5703.  
  5704.             Promise.resolve().then(() => {
  5705.  
  5706.               // TimerFnModT
  5707.  
  5708.               // ez++;
  5709.               // if(ez> 1e9) ez=9;
  5710.               if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
  5711.               a ? rafHub.cancel(this.rafId) : !a && b && (a = this.lastCountdownTimeMs || 0,
  5712.                 this.detlaSincePausedSecs && (a = (this.lastCountdownTimeMs || 0) + 1E3 * this.detlaSincePausedSecs,
  5713.                   this.detlaSincePausedSecs = 0),
  5714.                 this.boundUpdateTimeout37_(a),
  5715.                 this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = window.performance.now())
  5716.  
  5717.  
  5718.             }).catch(e => {
  5719.               console.log(e);
  5720.             });
  5721.  
  5722.  
  5723.  
  5724.           },
  5725.  
  5726.  
  5727.           /** @type {(a,b)} */
  5728.           computeContainerStyleForAnimatorEnabled: function (a, b) {
  5729.  
  5730.             if (this._r782) return;
  5731.  
  5732.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5733.               this._throwOut();
  5734.               return;
  5735.             }
  5736.  
  5737.             return (dummyValueForStyleReturn || (dummyValueForStyleReturn = genDummyValueForStyleReturn()));
  5738.  
  5739.           },
  5740.  
  5741.  
  5742.  
  5743.           /** @type {()} */
  5744.           handlePauseReplayForPlaybackProgressState: function () {
  5745.             if (!playerEventsByIframeRelay) return this.handlePauseReplay66.apply(this, arguments);
  5746.  
  5747.             if (onPlayStateChangePromise) {
  5748.  
  5749.               if (this.rtu > 1e9) this.rtu = this.rtu % 1e4;
  5750.               const tid = ++this.rtu;
  5751.  
  5752.               onPlayStateChangePromise.then(() => {
  5753.                 if (tid === this.rtu && !onPlayStateChangePromise) this.handlePauseReplay.apply(this, arguments);
  5754.               });
  5755.  
  5756.               return;
  5757.             }
  5758.  
  5759.             if (playerState !== 2) return;
  5760.             if (this.isAttached) {
  5761.               if (this.rtk > 1e9) this.rtk = this.rtk % 1e4;
  5762.               const tid = ++this.rtk;
  5763.               const tc = relayCount;
  5764.               foregroundPromiseFn().then(() => {
  5765.                 if (tid === this.rtk && tc === relayCount && playerState === 2 && _playerState === playerState) {
  5766.                   this.handlePauseReplay66();
  5767.                 }
  5768.  
  5769.               })
  5770.             }
  5771.           },
  5772.  
  5773.           /** @type {()} */
  5774.           handleResumeReplayForPlaybackProgressState: function () {
  5775.             if (!playerEventsByIframeRelay) return this.handleResumeReplay66.apply(this, arguments);
  5776.  
  5777.  
  5778.             if (onPlayStateChangePromise) {
  5779.  
  5780.               if (this.rtv > 1e9) this.rtv = this.rtv % 1e4;
  5781.               const tid = ++this.rtv;
  5782.  
  5783.               onPlayStateChangePromise.then(() => {
  5784.                 if (tid === this.rtv && !onPlayStateChangePromise) this.handleResumeReplay.apply(this, arguments);
  5785.               });
  5786.  
  5787.               return;
  5788.             }
  5789.  
  5790.  
  5791.             if (playerState !== 1) return;
  5792.             if (this.isAttached) {
  5793.               const tc = relayCount;
  5794.  
  5795.               relayPromise = relayPromise || new PromiseExternal();
  5796.               relayPromise.then(() => {
  5797.                 if (relayCount > tc && playerState === 1 && _playerState === playerState) {
  5798.                   this.handleResumeReplay66();
  5799.                 }
  5800.               });
  5801.             }
  5802.           },
  5803.  
  5804.           /** @type {(a,)} */
  5805.           handleReplayProgressForPlaybackProgressState: function (a) {
  5806.             if (this.isAttached) {
  5807.               const tid = ++this.rtk;
  5808.               foregroundPromiseFn().then(() => {
  5809.                 if (tid === this.rtk) {
  5810.                   this.handleReplayProgress66(a);
  5811.                 }
  5812.               })
  5813.             }
  5814.           }
  5815.  
  5816.  
  5817.         }
  5818.  
  5819.  
  5820.         for (const tag of tagsItemRenderer) { // ##tag##
  5821.           const dummy = document.createElement(tag);
  5822.  
  5823.           const cProto = getProto(dummy);
  5824.           if (!cProto || !cProto.attached) {
  5825.             console.warn(`proto.attached for ${tag} is unavailable.`);
  5826.             continue;
  5827.           }
  5828.  
  5829.           cProto.attached77 = cProto.attached;
  5830.  
  5831.           cProto.attached = dProto.attachedForTickerInit;
  5832.  
  5833.           let rafHackState = 0;
  5834.  
  5835.           let isTimingFunctionHackable = false;
  5836.  
  5837.           let urt = 0;
  5838.  
  5839.           if (typeof cProto.startCountdown === 'function' && typeof cProto.updateTimeout === 'function' && typeof cProto.isAnimationPausedChanged === 'function') {
  5840.  
  5841.             // console.log('startCountdown', typeof cProto.startCountdown)
  5842.             // console.log('updateTimeout', typeof cProto.updateTimeout)
  5843.             // console.log('isAnimationPausedChanged', typeof cProto.isAnimationPausedChanged)
  5844.  
  5845.             isTimingFunctionHackable = fnIntegrity(cProto.startCountdown, '2.66.37') && fnIntegrity(cProto.updateTimeout, '1.76.45') && fnIntegrity(cProto.isAnimationPausedChanged, '2.56.30')
  5846.  
  5847.           } else {
  5848.             console.log("ATTEMPT_ANIMATED_TICKER_BACKGROUND", ` ${tag}`, "Skip Timing Function Modification");
  5849.             continue;
  5850.           }
  5851.  
  5852.  
  5853.           if (ENABLE_RAF_HACK_TICKERS && rafHub !== null) {
  5854.  
  5855.             // cancelable - this.rafId < isAnimationPausedChanged >
  5856.             rafHackState = 1;
  5857.  
  5858.             if (isTimingFunctionHackable) {
  5859.               rafHackState = 2;
  5860.  
  5861.             } else {
  5862.               rafHackState = 4;
  5863.             }
  5864.  
  5865.           }
  5866.  
  5867.           const doAnimator = !!ATTEMPT_ANIMATED_TICKER_BACKGROUND && isTimingFunctionHackable && typeof KeyframeEffect === 'function' && typeof animate === 'function' && typeof cProto.computeContainerStyle === 'function' && typeof cProto.colorFromDecimal === 'function' && isCSSPropertySupported();
  5868.  
  5869.           const doRAFHack = rafHackState === 2;
  5870.  
  5871.           cProto._throwOut = dProto._throwOut;
  5872.  
  5873.           cProto._makeAnimator = doAnimator ? dProto._makeAnimator : null;
  5874.  
  5875.           cProto._aeFinished = doAnimator ? dProto._aeFinished : null;
  5876.  
  5877.  
  5878.           if (ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX) {
  5879.  
  5880.  
  5881.  
  5882.             if (typeof cProto.handlePauseReplay === 'function' && !cProto.handlePauseReplay66 && cProto.handlePauseReplay.length === 0) {
  5883.               urt++;
  5884.               assertor(() => fnIntegrity(cProto.handlePauseReplay, '0.12.4'));
  5885.             } else {
  5886.               console.log('Error for setting cProto.handlePauseReplay', tag)
  5887.             }
  5888.  
  5889.             if (typeof cProto.handleResumeReplay === 'function' && !cProto.handleResumeReplay66 && cProto.handlePauseReplay.length === 0) {
  5890.               urt++;
  5891.               assertor(() => fnIntegrity(cProto.handleResumeReplay, '0.8.2'));
  5892.             } else {
  5893.               console.log('Error for setting cProto.handleResumeReplay', tag)
  5894.             }
  5895.  
  5896.             if (typeof cProto.handleReplayProgress === 'function' && !cProto.handleReplayProgress66 && cProto.handleReplayProgress.length === 1) {
  5897.               urt++;
  5898.               assertor(() => fnIntegrity(cProto.handleReplayProgress, '1.16.13'));
  5899.             } else {
  5900.               console.log('Error for setting cProto.handleReplayProgress', tag)
  5901.             }
  5902.  
  5903.  
  5904.  
  5905.           }
  5906.  
  5907.           const ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED = ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX && urt === 3;
  5908.           cProto.__ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED__ = ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED;
  5909.  
  5910.           if (ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED) {
  5911.  
  5912.             cProto.rtk = 0;
  5913.             cProto.rtu = 0;
  5914.             cProto.rtv = 0;
  5915.  
  5916.             cProto.handlePauseReplay66 = cProto.handlePauseReplay;
  5917.             cProto.handlePauseReplay = dProto.handlePauseReplayForPlaybackProgressState;
  5918.  
  5919.             cProto.handleResumeReplay66 = cProto.handleResumeReplay;
  5920.             cProto.handleResumeReplay = dProto.handleResumeReplayForPlaybackProgressState;
  5921.  
  5922.             cProto.handleReplayProgress66 = cProto.handleReplayProgress;
  5923.             cProto.handleReplayProgress = dProto.handleReplayProgressForPlaybackProgressState;
  5924.  
  5925.           }
  5926.  
  5927.           const doTimerFnModification = (doRAFHack || doAnimator);
  5928.  
  5929.           if (doAnimator && windowShownAt < 0) {
  5930.             windowShownAt = 0;
  5931.             setupEventForWindowShownAt();
  5932.           }
  5933.  
  5934.           if (doTimerFnModification) {
  5935.  
  5936.             cProto.startCountdown = (
  5937.               doAnimator ? dProto.startCountdownForTimerFnModA : dProto.startCountdownForTimerFnModT
  5938.             );
  5939.  
  5940.             // _lastCountdownTimeMsX0 is required since performance.now() is not fully the same with rAF timestamp
  5941.             cProto.updateTimeout = (
  5942.               doAnimator ? dProto.updateTimeoutForTimerFnModA : dProto.updateTimeoutForTimerFnModT
  5943.             );
  5944.  
  5945.  
  5946.             // let ez = 0;
  5947.             cProto.isAnimationPausedChanged = (
  5948.               doAnimator ? dProto.isAnimationPausedChangedForTimerFnModA : dProto.isAnimationPausedChangedForTimerFnModT
  5949.             );
  5950.  
  5951.           }
  5952.  
  5953.           if (doAnimator) {
  5954.  
  5955.             const s = fnIntegrity(cProto.computeContainerStyle);
  5956.             // 2.44.29 or 2.81.31
  5957.             if (s === '2.44.29' || s === '2.81.31') {
  5958.  
  5959.               //     var ofb = da([""])
  5960.               //         pfb = da("background:linear-gradient(90deg, {,{ {,{ {,{);".split("{"))
  5961.  
  5962.               // f.computeContainerStyle = function(a, b) {
  5963.               //     if (!a)
  5964.               //         return pi(ofb);
  5965.               //     var c = this.colorFromDecimal(a.startBackgroundColor);
  5966.               //     a = this.colorFromDecimal(a.endBackgroundColor);
  5967.               //     b = 100 * b + "%";
  5968.               //     return pi(pfb, c, c, b, a, b, a)
  5969.               // }
  5970.  
  5971.             } else {
  5972.               assertor(() => fnIntegrity(cProto.computeContainerStyle, '2.44.29'));
  5973.             }
  5974.  
  5975.             cProto.computeContainerStyle66 = cProto.computeContainerStyle;
  5976.  
  5977.             cProto.computeContainerStyle = dProto.computeContainerStyleForAnimatorEnabled;
  5978.  
  5979.           }
  5980.  
  5981.           if (doTimerFnModification === true) hasTimerModified = true;
  5982.  
  5983.           if (!!ATTEMPT_ANIMATED_TICKER_BACKGROUND) {
  5984.             console.log('ATTEMPT_ANIMATED_TICKER_BACKGROUND', tag, doAnimator ? 'OK' : 'NG');
  5985.           }
  5986.  
  5987.           if (!doAnimator && (rafHackState === 2 || rafHackState === 4)) {
  5988.             console.log('RAF_HACK_TICKERS', tag, doRAFHack ? "OK" : "NG");
  5989.           }
  5990.  
  5991.         }
  5992.  
  5993.         const selector = tags.join(', ');
  5994.         const elements = document.querySelectorAll(selector);
  5995.         if (elements.length >= 1) {
  5996.           for (const elm of elements) {
  5997.             if (insp(elm).isAttached === true) {
  5998.               fpTicker(elm);
  5999.             }
  6000.           }
  6001.         }
  6002.  
  6003.         console.log("[End]");
  6004.         console.groupEnd();
  6005.  
  6006.  
  6007.       }).catch(console.warn);
  6008.  
  6009.       customElements.whenDefined('yt-live-chat-ticker-renderer').then(() => {
  6010.  
  6011.         mightFirstCheckOnYtInit();
  6012.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-ticker-renderer hacks");
  6013.         console.log("[Begin]");
  6014.         (() => {
  6015.  
  6016.           /* pending!!
  6017.  
  6018.           handleLiveChatAction
  6019.  
  6020.           removeTickerItemById
  6021.  
  6022.           _itemsChanged
  6023.           itemsChanged
  6024.  
  6025.           handleMarkChatItemAsDeletedAction
  6026.           handleMarkChatItemsByAuthorAsDeletedAction
  6027.           handleRemoveChatItemByAuthorAction
  6028.  
  6029.  
  6030.           */
  6031.  
  6032.           const tag = "yt-live-chat-ticker-renderer"
  6033.           const dummy = document.createElement(tag);
  6034.  
  6035.           const cProto = getProto(dummy);
  6036.           if (!cProto || !cProto.attached) {
  6037.             console.warn(`proto.attached for ${tag} is unavailable.`);
  6038.             return;
  6039.           }
  6040.  
  6041.           const do_amend_ticker_handleLiveChatAction = AMEND_TICKER_handleLiveChatAction
  6042.             && typeof cProto.handleLiveChatAction === 'function' && !cProto.handleLiveChatAction45 && cProto.handleLiveChatAction.length === 1
  6043.             && typeof cProto.handleLiveChatActions === 'function' && !cProto.handleLiveChatActions45 && cProto.handleLiveChatActions.length === 1
  6044.             && typeof cProto.unshift === 'function' && cProto.unshift.length === 1
  6045.             && typeof cProto.handleMarkChatItemAsDeletedAction === 'function' && cProto.handleMarkChatItemAsDeletedAction.length === 1
  6046.             && typeof cProto.removeTickerItemById === 'function' && cProto.removeTickerItemById.length === 1
  6047.             && typeof cProto.handleMarkChatItemsByAuthorAsDeletedAction === 'function' && cProto.handleMarkChatItemsByAuthorAsDeletedAction.length === 1
  6048.             && typeof cProto.handleRemoveChatItemByAuthorAction === 'function' && cProto.handleRemoveChatItemByAuthorAction.length === 1
  6049.             ;
  6050.  
  6051.           console.log('do_amend_ticker_handleLiveChatAction', fnIntegrity(cProto.handleLiveChatAction), fnIntegrity(cProto.handleLiveChatActions))
  6052.  
  6053.  
  6054.           if (do_amend_ticker_handleLiveChatAction) {
  6055.  
  6056.  
  6057.             if (fnIntegrity(cProto.handleLiveChatActions) === '1.23.12') {
  6058.  
  6059.               console.log(`handleLiveChatActions`, 'modified');
  6060.  
  6061.               cProto.handleLiveChatActions45 = cProto.handleLiveChatActions;
  6062.  
  6063.               cProto.handleLiveChatActions = function (a) {
  6064.                 /**
  6065.                  *
  6066.                     f.handleLiveChatActions = function(a) {
  6067.                         a.length && (a.forEach(this.handleLiveChatAction, this),
  6068.                         this.updateHighlightedItem(),
  6069.                         this.shouldAnimateIn = !0)
  6070.                     }
  6071.                  *
  6072.                  */
  6073.                 const len = a.length;
  6074.                 if (len) {
  6075.                   const batchToken = String.fromCharCode(Date.now() % 26 + 97) + Math.floor(Math.random() * 19861 + 19861).toString(36);
  6076.  
  6077.                   if (FIX_BATCH_TICKER_ORDER && len >= 2) {
  6078.  
  6079.                     // Primarily for the initial batch, this is due to replayBuffer._back.
  6080.                     const entries = [];
  6081.                     const entriesI = [];
  6082.                     for (let i = 0; i < len; i++) {
  6083.                       const item = ((a[i] || 0).addLiveChatTickerItemAction || 0).item || 0;
  6084.                       const timestampUsec = item ? parseInt(getTimestampUsec(item[firstObjectKey(item)]), 10) : 0;
  6085.                       if (timestampUsec > 0) {
  6086.                         entriesI.push(i);
  6087.                         binaryInsert(entries, { e: a[i], timestampUsec }, (a, b) => {
  6088.                           const diff = a.timestampUsec - b.timestampUsec;
  6089.                           return diff > 0.1 ? 1 : diff < -0.1 ? -1 : 0;
  6090.                         });
  6091.                       }
  6092.                     }
  6093.                     const mLen = entries.length;
  6094.                     if (mLen >= 2) {
  6095.                       for (let j = 0; j < mLen; j++) {
  6096.                         a[entriesI[j]] = entries[j].e;
  6097.                       }
  6098.                     }
  6099.                     entries.length = 0;
  6100.                     entriesI.length = 0;
  6101.                   }
  6102.                   for (const action of a) {
  6103.                     action.__batchId45__ = batchToken;
  6104.                     this.handleLiveChatAction(action);
  6105.                   }
  6106.                 }
  6107.               }
  6108.  
  6109.  
  6110.             }
  6111.  
  6112.  
  6113.             console.log(`handleLiveChatAction`, 'modified');
  6114.  
  6115.             const cacheChatActions = new LimitedSizeSet(16);
  6116.  
  6117.             cProto.handleLiveChatAction45 = cProto.handleLiveChatAction;
  6118.  
  6119.             cProto.handleLiveChatAction = function (a) {
  6120.  
  6121.               const key = firstObjectKey(a);
  6122.               if (!key) return;
  6123.  
  6124.               const val = a[key];
  6125.               let itemKey = '';
  6126.               let itemId = '';
  6127.               const valItem = val ? val.item : null;
  6128.               if (valItem) {
  6129.                 itemKey = firstObjectKey(valItem);
  6130.                 if (itemKey) {
  6131.                   const itemVal = valItem[itemKey];
  6132.                   itemId = itemVal ? itemVal.id : '';
  6133.                   if (itemId) {
  6134.  
  6135.                     const cacheKey = `${key}.${itemKey}::${itemId}`;
  6136.  
  6137.                     if (key === 'addChatItemAction' && itemId) return; // no need
  6138.  
  6139.                     if (cacheChatActions.has(cacheKey)) {
  6140.  
  6141.                       console.log('handleLiveChatAction Repeated Item', cacheKey);
  6142.                       return;
  6143.  
  6144.                     } else {
  6145.                       cacheChatActions.add(cacheKey);
  6146.  
  6147.                     }
  6148.  
  6149.  
  6150.                   }
  6151.                 }
  6152.               }
  6153.  
  6154.               return this.handleLiveChatAction45(a);
  6155.  
  6156.             };
  6157.  
  6158.             console.log("AMEND_TICKER_handleLiveChatAction - OK (v2)");
  6159.  
  6160.           } else if (0 && do_amend_ticker_handleLiveChatAction
  6161.             && '|1.63.48|1.64.48|'.includes(`|${fnIntegrity(cProto.handleLiveChatAction)}|`)
  6162.             && fnIntegrity(cProto.handleLiveChatActions) === '1.23.12'
  6163.           ) {
  6164.  
  6165.             cProto.handleLiveChatActions45 = cProto.handleLiveChatActions;
  6166.  
  6167.             cProto.handleLiveChatActions = function (a) {
  6168.               /**
  6169.                *
  6170.                   f.handleLiveChatActions = function(a) {
  6171.                       a.length && (a.forEach(this.handleLiveChatAction, this),
  6172.                       this.updateHighlightedItem(),
  6173.                       this.shouldAnimateIn = !0)
  6174.                   }
  6175.                *
  6176.                */
  6177.  
  6178.               if (a.length) {
  6179.                 const batchToken = String.fromCharCode(Date.now() % 26 + 97) + Math.floor(Math.random() * 19861 + 19861).toString(36);
  6180.                 const len = a.length;
  6181.                 if (FIX_BATCH_TICKER_ORDER && len >= 2) {
  6182.                   // Primarily for the initial batch, this is due to replayBuffer._back.
  6183.                   const entries = [];
  6184.                   const entriesI = [];
  6185.                   for (let i = 0; i < len; i++) {
  6186.                     const item = ((a[i] || 0).addLiveChatTickerItemAction || 0).item || 0;
  6187.                     if (item) {
  6188.                       const itemRendererKey = firstObjectKey(item);
  6189.                       const itemRenderer = item[itemRendererKey];
  6190.                       if (itemRenderer) {
  6191.                         let timestampUsec = getTimestampUsec(itemRenderer);
  6192.                         if (timestampUsec !== null) {
  6193.                           timestampUsec = parseInt(timestampUsec, 10);
  6194.                           if (timestampUsec > 0) {
  6195.                             entriesI.push(i);
  6196.                             entries.push({ e: a[i], timestampUsec })
  6197.                           }
  6198.                         }
  6199.                       }
  6200.                     }
  6201.                   }
  6202.                   const mLen = entries.length;
  6203.                   if (mLen >= 2) {
  6204.                     entries.sort((a, b) => {
  6205.                       const diff = a.timestampUsec - b.timestampUsec;
  6206.                       return diff > 0.1 ? 1 : diff < -0.1 ? -1 : 0;
  6207.                     });
  6208.                     for (let j = 0; j < mLen; j++) {
  6209.                       const i = entriesI[j];
  6210.                       a[i] = entries[j].e;
  6211.                     }
  6212.                   }
  6213.                   entries.length = 0;
  6214.                   entriesI.length = 0;
  6215.                 }
  6216.                 for (const action of a) {
  6217.                   action.__batchId45__ = batchToken;
  6218.                   this.handleLiveChatAction(action);
  6219.                 }
  6220.               }
  6221.             }
  6222.  
  6223.             cProto.handleLiveChatAction45 = cProto.handleLiveChatAction;
  6224.  
  6225.  
  6226.  
  6227.             cProto._nszlv_ = 0;
  6228.             cProto._stackedLCAs_ = null;
  6229.             cProto._lastAddItem_ = null;
  6230.             cProto._lastAddItemInStack_ = false;
  6231.             cProto.handleLiveChatAction = function (a) {
  6232.  
  6233.  
  6234.               /**
  6235.                *
  6236.                *
  6237.                 f.handleLiveChatAction = function(a) {
  6238.                     var b = C(a, xO)
  6239.                       , c = C(a, yO)
  6240.                       , d = C(a, o1a)
  6241.                       , e = C(a, p1a);
  6242.                     a = C(a, A1a);
  6243.                     b ? this.unshift("items", b.item) : c ? this.handleMarkChatItemAsDeletedAction(c) : d ? this.removeTickerItemById(d.targetItemId) : e ? this.handleMarkChatItemsByAuthorAsDeletedAction(e) : a && this.handleRemoveChatItemByAuthorAction(a)
  6244.                 }
  6245.                *
  6246.                */
  6247.  
  6248.               // return this.handleLiveChatAction45(a)
  6249.               const { addChatItemAction, addLiveChatTickerItemAction, markChatItemAsDeletedAction,
  6250.                 removeChatItemAction, markChatItemsByAuthorAsDeletedAction, removeChatItemByAuthorAction, __batchId45__ } = a
  6251.  
  6252.               if (addChatItemAction) return;
  6253.  
  6254.  
  6255.               const d = Date.now();
  6256.  
  6257.  
  6258.               // console.log(Object.keys(a));
  6259.  
  6260.               if (this._stackedLCAs_ === null) this._stackedLCAs_ = [];
  6261.               const stackArr = this._stackedLCAs_;
  6262.               let newStackEntry = null;
  6263.               if (addLiveChatTickerItemAction) {
  6264.                 let isDuplicated = false;
  6265.  
  6266.                 const newItem = addLiveChatTickerItemAction.item;
  6267.                 const tickerType = firstObjectKey(newItem);
  6268.                 if (!tickerType) return;
  6269.                 const tickerItem = newItem[tickerType];
  6270.                 const tickerId = tickerItem.id;
  6271.                 if (!tickerId) return;
  6272.  
  6273.                 if (this._lastAddItem_ && this._lastAddItem_.id === tickerId) {
  6274.                   let prevTickerItem = null;
  6275.                   if (this._lastAddItemInStack_) {
  6276.                     const entry = stackArr[stackArr.length - 1]; // only consider the last entry
  6277.                     if (entry && entry.action === 'addItem') {
  6278.                       prevTickerItem = entry.data; // only consider the first item;
  6279.                     }
  6280.                   } else {
  6281.                     prevTickerItem = this.items[0]; // only consider the first item;
  6282.                   }
  6283.                   if (prevTickerItem && prevTickerItem[tickerType]) {
  6284.                     if (prevTickerItem[tickerType].id === tickerId) {
  6285.                       isDuplicated = true;
  6286.                     }
  6287.                   }
  6288.                 }
  6289.                 if (!isDuplicated) {
  6290.                   this._lastAddItem_ = tickerItem;
  6291.                   this._lastAddItemInStack_ = true;
  6292.                   // console.log('newItem', newItem)
  6293.  
  6294.                   const item = newItem;
  6295.                   const key = firstObjectKey(item);
  6296.                   if (key) {
  6297.                     const itemRenderer = item[key] || 0;
  6298.                     if (itemRenderer.fullDurationSec > 0) {
  6299.                       itemRenderer.__actionAt__ = d;
  6300.                     }
  6301.                   }
  6302.  
  6303.  
  6304.                   newStackEntry = { action: 'addItem', data: newItem };
  6305.  
  6306.                 } else {
  6307.                   console.log('handleLiveChatAction Repeated Item', tickerItem.id, tickerItem); // happen in both live and playback. Reason Unknown.
  6308.                   return;
  6309.                 }
  6310.  
  6311.               } else {
  6312.                 markChatItemAsDeletedAction && (newStackEntry = { action: 'mcItemD', data: markChatItemAsDeletedAction });
  6313.                 removeChatItemAction && (newStackEntry = { action: 'removeItemById', data: removeChatItemAction.targetId });
  6314.                 markChatItemsByAuthorAsDeletedAction && (newStackEntry = { action: 'mcItemAD', data: markChatItemsByAuthorAsDeletedAction });
  6315.                 removeChatItemByAuthorAction && (newStackEntry = { action: 'removeItemA', data: removeChatItemByAuthorAction })
  6316.               }
  6317.  
  6318.  
  6319.               if (!newStackEntry) return;
  6320.               stackArr.push(newStackEntry);
  6321.  
  6322.  
  6323.               this._nszlv_++;
  6324.               if (this._nszlv_ > 1e9) this._nszlv_ = 9;
  6325.               const tid = this._nszlv_;
  6326.  
  6327.               newStackEntry.__batchId45__ = __batchId45__ || '';
  6328.               newStackEntry.dateTime = Date.now();
  6329.  
  6330.  
  6331.               foregroundPromiseFn().then(() => {
  6332.  
  6333.                 if (tid !== this._nszlv_) return;
  6334.                 const dateNow = Date.now(); // time difference to shift animation start time shall be considered. (pending)
  6335.                 const stackArr = this._stackedLCAs_.slice(0);
  6336.                 this._stackedLCAs_.length = 0;
  6337.                 this._lastAddItemInStack_ = false;
  6338.                 let lastDateTime = 0;
  6339.                 let prevBatchId = '';
  6340.                 const addItems = [];
  6341.                 // const previousShouldAnimateIn = this.shouldAnimateIn;
  6342.  
  6343.                 const addItemsFx = () => {
  6344.  
  6345.                   if (addItems.length >= 1) {
  6346.                     const eArr = addItems.slice(0);
  6347.                     addItems.length = 0;
  6348.                     if (ADJUST_TICKER_DURATION_ALIGN_RENDER_TIME) {
  6349.  
  6350.                       const arr = []; // size of arr <= size of eArr
  6351.                       const d = Date.now();
  6352.                       for (const item of eArr) {
  6353.                         const key = firstObjectKey(item);
  6354.                         if (key) {
  6355.  
  6356.  
  6357.                           const itemRenderer = item[key] || 0;
  6358.                           const { durationSec, fullDurationSec, __actionAt__ } = itemRenderer;
  6359.                           if (__actionAt__ > 0 && durationSec > 0 && fullDurationSec > 0) {
  6360.  
  6361.  
  6362.                             const offset = d - __actionAt__;
  6363.                             if (offset > 0 && typeof durationSec === 'number' && typeof fullDurationSec === 'number' && fullDurationSec >= durationSec) {
  6364.                               const adjustedDurationSec = durationSec - Math.floor(offset / 1000);
  6365.                               if (adjustedDurationSec < durationSec) { // prevent NaN
  6366.                                 // console.log('adjustedDurationSec', adjustedDurationSec);
  6367.                                 if (adjustedDurationSec > 0) {
  6368.                                   // console.log('offset Sec', Math.floor(offset / 1000));
  6369.                                   itemRenderer.durationSec = adjustedDurationSec;
  6370.                                 } else {
  6371.                                   // if adjustedDurationSec equal 0 or invalid
  6372.                                   continue; // skip adding
  6373.                                 }
  6374.                               }
  6375.  
  6376.                             }
  6377.  
  6378.                           }
  6379.  
  6380.                           if (fullDurationSec > 0 && durationSec < 1) continue; // fallback check
  6381.  
  6382.  
  6383.  
  6384.                         }
  6385.                         arr.push(item)
  6386.                         // arr.unshift(item);
  6387.                       }
  6388.  
  6389.  
  6390.                       // console.log(arr.slice(0))
  6391.                       this.unshift("items", ...arr);
  6392.                     } else {
  6393.                       this.unshift("items", ...eArr);
  6394.                     }
  6395.                   }
  6396.                 }
  6397.  
  6398.                 for (const entry of stackArr) {
  6399.  
  6400.                   const { action, data, dateTime, __batchId45__ } = entry;
  6401.  
  6402.                   const finishLastAction = (
  6403.                     (prevBatchId !== __batchId45__ && prevBatchId)
  6404.                     || (dateNow - lastDateTime >= 1000 && dateNow - dateTime < 1000)
  6405.                   );
  6406.  
  6407.                   const addPrevItems = addItems.length >= 1 && (finishLastAction || action !== 'addItem');
  6408.                   lastDateTime = dateTime;
  6409.                   prevBatchId = __batchId45__;
  6410.  
  6411.                   // if (dateNow - dateTime >= 1000 && this.shouldAnimateIn) this.shouldAnimateIn = false;
  6412.  
  6413.  
  6414.                   if (addPrevItems) {
  6415.                     addItemsFx();
  6416.                   }
  6417.                   // if (finishLastAction) {
  6418.                   //   this.updateHighlightedItem();
  6419.                   //   if (!this.shouldAnimateIn) this.shouldAnimateIn = true;
  6420.                   // }
  6421.  
  6422.  
  6423.                   if (action === 'addItem') addItems.unshift(data);
  6424.                   else if (action === 'mcItemD') this.handleMarkChatItemAsDeletedAction(data);
  6425.                   else if (action === 'removeItemById') this.removeTickerItemById(data);
  6426.                   else if (action === 'mcItemAD') this.handleMarkChatItemsByAuthorAsDeletedAction(data);
  6427.                   else if (action === 'removeItemA') this.handleRemoveChatItemByAuthorAction(data);
  6428.  
  6429.                 }
  6430.  
  6431.  
  6432.                 // if (previousShouldAnimateIn && !this.shouldAnimateIn) this.shouldAnimateIn = true;
  6433.  
  6434.                 addItemsFx();
  6435.  
  6436.                 // if (prevBatchId || dateNow - lastDateTime >= 1000) {
  6437.                 //   this.updateHighlightedItem();
  6438.                 //   if (!this.shouldAnimateIn) this.shouldAnimateIn = true;
  6439.                 // }
  6440.  
  6441.               })
  6442.  
  6443.             }
  6444.  
  6445.             console.log("AMEND_TICKER_handleLiveChatAction - OK (v1)");
  6446.           } else {
  6447.             console.log("AMEND_TICKER_handleLiveChatAction - NG");
  6448.           }
  6449.  
  6450.           if (RAF_FIX_keepScrollClamped) {
  6451.  
  6452.             // to be improved
  6453.  
  6454.             if (typeof cProto.keepScrollClamped === 'function' && !cProto.keepScrollClamped72 && fnIntegrity(cProto.keepScrollClamped) === '0.17.10') {
  6455.  
  6456.               cProto.keepScrollClamped72 = cProto.keepScrollClamped;
  6457.               cProto.keepScrollClamped = function () {
  6458.                 this._bound_keepScrollClamped = this._bound_keepScrollClamped || this.keepScrollClamped.bind(this);
  6459.                 this.scrollClampRaf = requestAnimationFrame(this._bound_keepScrollClamped);
  6460.                 this.maybeClampScroll()
  6461.               }
  6462.  
  6463.               console.log('RAF_FIX: keepScrollClamped', tag, "OK")
  6464.             } else {
  6465.  
  6466.               assertor(() => fnIntegrity(cProto.keepScrollClamped, '0.17.10'));
  6467.               console.log('RAF_FIX: keepScrollClamped', tag, "NG")
  6468.             }
  6469.  
  6470.           }
  6471.  
  6472.  
  6473.           if (RAF_FIX_scrollIncrementally && typeof cProto.startScrolling === 'function' && typeof cProto.scrollIncrementally === 'function' && fnIntegrity(cProto.startScrolling) === '1.43.31' && '|1.78.45|1.82.43|'.indexOf('|' + fnIntegrity(cProto.scrollIncrementally) + '|') >= 0) {
  6474.             // to be replaced by animator
  6475.  
  6476.             cProto.startScrolling = function (a) {
  6477.               this.scrollStopHandle && this.cancelAsync(this.scrollStopHandle);
  6478.               this.asyncHandle && cancelAnimationFrame(this.asyncHandle);
  6479.               this.lastFrameTimestamp = this.scrollStartTime = performance.now();
  6480.               this.scrollRatePixelsPerSecond = a;
  6481.               this._bound_scrollIncrementally = this._bound_scrollIncrementally || this.scrollIncrementally.bind(this);
  6482.               this.asyncHandle = requestAnimationFrame(this._bound_scrollIncrementally)
  6483.             };
  6484.  
  6485.             // related functions: startScrollBack, startScrollingLeft, startScrollingRight, etc.
  6486.  
  6487.             // 2024.03.26
  6488.             // https://www.youtube.com/s/desktop/436f2749/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  6489.             /*
  6490.  
  6491.                 f.scrollIncrementally = function(a) {
  6492.                     var b = a - (this.lastFrameTimestamp || 0);
  6493.                     Q(this.hostElement).querySelector(this.tickerBarQuery).scrollLeft += b / 1E3 * (this.scrollRatePixelsPerSecond || 0);
  6494.                     this.maybeClampScroll();
  6495.                     this.updateArrows();
  6496.                     this.lastFrameTimestamp = a;
  6497.                     0 < Q(this.hostElement).querySelector(this.tickerBarQuery).scrollLeft || this.scrollRatePixelsPerSecond && 0 < this.scrollRatePixelsPerSecond ? this.asyncHandle = window.requestAnimationFrame(this.scrollIncrementally.bind(this)) : this.stopScrolling()
  6498.                 }
  6499.             */
  6500.  
  6501.             cProto.__getTickerBarQuery__ = function () {
  6502.               const tickerBarQuery = this.tickerBarQuery === '#items' ? this.$.items : this.hostElement.querySelector(this.tickerBarQuery);
  6503.               return tickerBarQuery;
  6504.             }
  6505.  
  6506.             cProto.scrollIncrementally = (RAF_FIX_scrollIncrementally === 2) ? function (a) {
  6507.               const b = a - (this.lastFrameTimestamp || 0);
  6508.               const rate = this.scrollRatePixelsPerSecond
  6509.               const q = b / 1E3 * (rate || 0);
  6510.  
  6511.               const tickerBarQuery = this.__getTickerBarQuery__();
  6512.               const sl = tickerBarQuery.scrollLeft;
  6513.               // console.log(rate, sl, q)
  6514.               if (this.lastFrameTimestamp == this.scrollStartTime) {
  6515.  
  6516.               } else if (q > -1e-5 && q < 1e-5) {
  6517.  
  6518.               } else {
  6519.                 let cond1 = sl > 0 && rate > 0 && q > 0;
  6520.                 let cond2 = sl > 0 && rate < 0 && q < 0;
  6521.                 let cond3 = sl < 1e-5 && sl > -1e-5 && rate > 0 && q > 0;
  6522.                 if (cond1 || cond2 || cond3) {
  6523.                   tickerBarQuery.scrollLeft += q;
  6524.                   this.maybeClampScroll();
  6525.                   this.updateArrows();
  6526.                 }
  6527.               }
  6528.  
  6529.               this.lastFrameTimestamp = a;
  6530.               this._bound_scrollIncrementally = this._bound_scrollIncrementally || this.scrollIncrementally.bind(this);
  6531.               0 < tickerBarQuery.scrollLeft || rate && 0 < rate ? this.asyncHandle = requestAnimationFrame(this._bound_scrollIncrementally) : this.stopScrolling()
  6532.             } : function (a) {
  6533.               const b = a - (this.lastFrameTimestamp || 0);
  6534.               const tickerBarQuery = this.__getTickerBarQuery__();
  6535.               tickerBarQuery.scrollLeft += b / 1E3 * (this.scrollRatePixelsPerSecond || 0);
  6536.               this.maybeClampScroll();
  6537.               this.updateArrows();
  6538.               this.lastFrameTimestamp = a;
  6539.               this._bound_scrollIncrementally = this._bound_scrollIncrementally || this.scrollIncrementally.bind(this);
  6540.               0 < tickerBarQuery.scrollLeft || this.scrollRatePixelsPerSecond && 0 < this.scrollRatePixelsPerSecond ? this.asyncHandle = requestAnimationFrame(this._bound_scrollIncrementally) : this.stopScrolling()
  6541.             };
  6542.  
  6543.             console.log(`RAF_FIX: scrollIncrementally${RAF_FIX_scrollIncrementally}`, tag, "OK")
  6544.           } else {
  6545.             assertor(() => fnIntegrity(cProto.startScrolling, '1.43.31'));
  6546.             assertor(() => fnIntegrity(cProto.scrollIncrementally, '1.82.43'));
  6547.             console.log('cProto.startScrolling', cProto.startScrolling);
  6548.             console.log('cProto.scrollIncrementally', cProto.scrollIncrementally);
  6549.             console.log('RAF_FIX: scrollIncrementally', tag, "NG")
  6550.           }
  6551.  
  6552.  
  6553.           if (CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED && typeof cProto.attached === 'function' && !cProto.attached37 && typeof cProto.detached === 'function' && !cProto.detached37) {
  6554.  
  6555.             cProto.attached37 = cProto.attached;
  6556.             cProto.detached37 = cProto.detached;
  6557.  
  6558.             let naohzId = 0;
  6559.             cProto.__naohzId__ = 0;
  6560.             cProto.attached = function () {
  6561.               Promise.resolve().then(() => {
  6562.  
  6563.                 const hostElement = this.hostElement || this;
  6564.                 if (!(hostElement instanceof HTMLElement)) return;
  6565.                 if (!HTMLElement.prototype.matches.call(hostElement, '.yt-live-chat-renderer')) return;
  6566.                 const ironPage = HTMLElement.prototype.closest.call(hostElement, 'iron-pages.yt-live-chat-renderer');
  6567.                 // or #chat-messages
  6568.                 if (!ironPage) return;
  6569.  
  6570.                 if (this.__naohzId__) removeEventListener.call(ironPage, 'click', this.messageBoxClickHandlerForFade, { capture: false, passive: true });
  6571.                 if (naohzId > 1e9) naohzId = naohzId % 1e4;
  6572.                 this.__naohzId__ = ++naohzId;
  6573.                 ironPage.setAttribute('naohz', `${+this.__naohzId__}`);
  6574.  
  6575.                 addEventListener.call(ironPage, 'click', this.messageBoxClickHandlerForFade, { capture: false, passive: true });
  6576.  
  6577.               });
  6578.               return this.attached37.apply(this, arguments);
  6579.             };
  6580.             cProto.detached = function () {
  6581.               Promise.resolve().then(() => {
  6582.  
  6583.                 const ironPage = document.querySelector(`iron-pages[naohz="${+this.__naohzId__}"]`);
  6584.                 if (!ironPage) return;
  6585.  
  6586.                 removeEventListener.call(ironPage, 'click', this.messageBoxClickHandlerForFade, { capture: false, passive: true });
  6587.  
  6588.               });
  6589.               return this.detached37.apply(this, arguments);
  6590.             };
  6591.  
  6592.             const clickFade = (u) => {
  6593.               u.click();
  6594.             };
  6595.             cProto.messageBoxClickHandlerForFade = async (evt) => {
  6596.  
  6597.               const target = (evt || 0).target || 0;
  6598.               if (!target) return;
  6599.  
  6600.               for (let p = target; p instanceof HTMLElement; p = nodeParent(p)) {
  6601.                 const is = p.is;
  6602.                 if (typeof is === 'string' && is) {
  6603.  
  6604.                   if (is === 'yt-live-chat-pinned-message-renderer') {
  6605.                     return;
  6606.                   }
  6607.                   if (is === 'iron-pages' || is === 'yt-live-chat-renderer' || is === 'yt-live-chat-app') {
  6608.                     const fade = HTMLElement.prototype.querySelector.call(p, 'yt-live-chat-pinned-message-renderer:not([hidden]) #fade');
  6609.                     if (fade) {
  6610.                       Promise.resolve(fade).then(clickFade);
  6611.                       evt && evt.stopPropagation();
  6612.                     }
  6613.                     return;
  6614.                   }
  6615.                   if (is !== 'yt-live-chat-ticker-renderer') {
  6616.                     if (is.startsWith('yt-live-chat-ticker-')) return;
  6617.                     if (!is.endsWith('-renderer')) return;
  6618.                   }
  6619.  
  6620.                 } else {
  6621.                   if ((p.nodeName || '').includes('BUTTON')) return;
  6622.                 }
  6623.  
  6624.               }
  6625.             };
  6626.  
  6627.             console.log("CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED - OK")
  6628.  
  6629.           } else {
  6630.             console.log("CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED - NG")
  6631.           }
  6632.  
  6633.  
  6634.         })();
  6635.  
  6636.         console.log("[End]");
  6637.  
  6638.         console.groupEnd();
  6639.  
  6640.       }).catch(console.warn);
  6641.  
  6642.  
  6643.  
  6644.       if (ENABLE_RAF_HACK_INPUT_RENDERER || DELAY_FOCUSEDCHANGED) {
  6645.  
  6646.         customElements.whenDefined("yt-live-chat-message-input-renderer").then(() => {
  6647.  
  6648.           mightFirstCheckOnYtInit();
  6649.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-message-input-renderer hacks");
  6650.           console.log("[Begin]");
  6651.           (() => {
  6652.  
  6653.  
  6654.  
  6655.             const tag = "yt-live-chat-message-input-renderer"
  6656.             const dummy = document.createElement(tag);
  6657.  
  6658.             const cProto = getProto(dummy);
  6659.             if (!cProto || !cProto.attached) {
  6660.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6661.               return;
  6662.             }
  6663.  
  6664.  
  6665.             if (ENABLE_RAF_HACK_INPUT_RENDERER && rafHub !== null) {
  6666.  
  6667.               let doHack = false;
  6668.               if (typeof cProto.handleTimeout === 'function' && typeof cProto.updateTimeout === 'function') {
  6669.  
  6670.                 // not cancellable
  6671.  
  6672.  
  6673.                 doHack = fnIntegrity(cProto.handleTimeout, '1.27.16') && fnIntegrity(cProto.updateTimeout, '1.50.33');
  6674.  
  6675.               }
  6676.  
  6677.               if (doHack) {
  6678.  
  6679.                 cProto.handleTimeout = function (a) {
  6680.                   console.log('cProto.handleTimeout', tag)
  6681.                   if (!this.boundUpdateTimeout38_) this.boundUpdateTimeout38_ = this.updateTimeout.bind(this);
  6682.                   this.timeoutDurationMs = this.timeoutMs = a;
  6683.                   this.countdownRatio = 1;
  6684.                   0 === this.lastTimeoutTimeMs && rafHub.request(this.boundUpdateTimeout38_)
  6685.                 };
  6686.                 cProto.updateTimeout = function (a) {
  6687.                   console.log('cProto.updateTimeout', tag)
  6688.                   if (!this.boundUpdateTimeout38_) this.boundUpdateTimeout38_ = this.updateTimeout.bind(this);
  6689.                   this.lastTimeoutTimeMs && (this.timeoutMs = Math.max(0, this.timeoutMs - (a - this.lastTimeoutTimeMs)),
  6690.                     this.countdownRatio = this.timeoutMs / this.timeoutDurationMs);
  6691.                   this.isAttached && this.timeoutMs ? (this.lastTimeoutTimeMs = a,
  6692.                     rafHub.request(this.boundUpdateTimeout38_)) : this.lastTimeoutTimeMs = 0
  6693.                 };
  6694.  
  6695.                 console.log('RAF_HACK_INPUT_RENDERER', tag, "OK")
  6696.               } else {
  6697.  
  6698.                 console.log('typeof handleTimeout', typeof cProto.handleTimeout)
  6699.                 console.log('typeof updateTimeout', typeof cProto.updateTimeout)
  6700.  
  6701.                 console.log('RAF_HACK_INPUT_RENDERER', tag, "NG")
  6702.               }
  6703.  
  6704.  
  6705.             }
  6706.  
  6707.             if (DELAY_FOCUSEDCHANGED && typeof cProto.onFocusedChanged === 'function' && cProto.onFocusedChanged.length === 1 && !cProto.onFocusedChanged372) {
  6708.               cProto.onFocusedChanged372 = cProto.onFocusedChanged;
  6709.               cProto.onFocusedChanged = function (a) {
  6710.                 Promise.resolve().then(() => {
  6711.                   if (this.isAttached === true) this.onFocusedChanged372(a);
  6712.                 }).catch(console.warn);
  6713.               }
  6714.             }
  6715.  
  6716.           })();
  6717.  
  6718.           console.log("[End]");
  6719.  
  6720.           console.groupEnd();
  6721.  
  6722.  
  6723.         })
  6724.  
  6725.       }
  6726.  
  6727.  
  6728.       if (ENABLE_RAF_HACK_EMOJI_PICKER && rafHub !== null) {
  6729.  
  6730.  
  6731.         customElements.whenDefined("yt-emoji-picker-renderer").then(() => {
  6732.  
  6733.           mightFirstCheckOnYtInit();
  6734.           groupCollapsed("YouTube Super Fast Chat", " | yt-emoji-picker-renderer hacks");
  6735.           console.log("[Begin]");
  6736.           (() => {
  6737.  
  6738.             const tag = "yt-emoji-picker-renderer"
  6739.             const dummy = document.createElement(tag);
  6740.  
  6741.             const cProto = getProto(dummy);
  6742.             if (!cProto || !cProto.attached) {
  6743.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6744.               return;
  6745.             }
  6746.  
  6747.             let doHack = false;
  6748.             if (typeof cProto.animateScroll_ === 'function') {
  6749.  
  6750.               // not cancellable
  6751.               console.log('animateScroll_', typeof cProto.animateScroll_)
  6752.  
  6753.               doHack = fnIntegrity(cProto.animateScroll_, '1.102.49')
  6754.  
  6755.             }
  6756.  
  6757.             if (doHack) {
  6758.  
  6759.               const querySelector = HTMLElement.prototype.querySelector;
  6760.               const U = (element) => ({
  6761.                 querySelector: (selector) => querySelector.call(element, selector)
  6762.               });
  6763.  
  6764.               cProto.animateScroll_ = function (a) {
  6765.                 // console.log('cProto.animateScroll_', tag) // yt-emoji-picker-renderer
  6766.                 if (!this.boundAnimateScroll39_) this.boundAnimateScroll39_ = this.animateScroll_.bind(this);
  6767.                 this.lastAnimationTime_ || (this.lastAnimationTime_ = a);
  6768.                 a -= this.lastAnimationTime_;
  6769.                 200 > a ? (U(this.hostElement).querySelector("#categories").scrollTop = this.animationStart_ + (this.animationEnd_ - this.animationStart_) * a / 200,
  6770.                   rafHub.request(this.boundAnimateScroll39_)) : (null != this.animationEnd_ && (U(this.hostElement).querySelector("#categories").scrollTop = this.animationEnd_),
  6771.                     this.animationEnd_ = this.animationStart_ = null,
  6772.                     this.lastAnimationTime_ = 0);
  6773.                 this.updateButtons_()
  6774.               }
  6775.  
  6776.               console.log('ENABLE_RAF_HACK_EMOJI_PICKER', tag, "OK")
  6777.             } else {
  6778.  
  6779.               console.log('ENABLE_RAF_HACK_EMOJI_PICKER', tag, "NG")
  6780.             }
  6781.  
  6782.           })();
  6783.  
  6784.           console.log("[End]");
  6785.  
  6786.           console.groupEnd();
  6787.         });
  6788.       }
  6789.  
  6790.       if (ENABLE_RAF_HACK_DOCKED_MESSAGE && rafHub !== null) {
  6791.  
  6792.  
  6793.         customElements.whenDefined("yt-live-chat-docked-message").then(() => {
  6794.  
  6795.           mightFirstCheckOnYtInit();
  6796.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-docked-message hacks");
  6797.           console.log("[Begin]");
  6798.           (() => {
  6799.  
  6800.             const tag = "yt-live-chat-docked-message"
  6801.             const dummy = document.createElement(tag);
  6802.  
  6803.             const cProto = getProto(dummy);
  6804.             if (!cProto || !cProto.attached) {
  6805.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6806.               return;
  6807.             }
  6808.  
  6809.             let doHack = false;
  6810.             if (typeof cProto.detached === 'function' && typeof cProto.checkIntersections === 'function' && typeof cProto.onDockableMessagesChanged === 'function' && typeof cProto.boundCheckIntersections === 'undefined') {
  6811.  
  6812.               // cancelable - this.intersectRAF <detached>
  6813.               // yt-live-chat-docked-message
  6814.               // boundCheckIntersections <-> checkIntersections
  6815.               // onDockableMessagesChanged
  6816.               //  this.intersectRAF = window.requestAnimationFrame(this.boundCheckIntersections);
  6817.  
  6818.               console.log('detached', typeof cProto.detached)
  6819.               console.log('checkIntersections', typeof cProto.checkIntersections)
  6820.               console.log('onDockableMessagesChanged', typeof cProto.onDockableMessagesChanged)
  6821.  
  6822.               doHack = fnIntegrity(cProto.detached, '0.32.22') && fnIntegrity(cProto.checkIntersections, '0.128.85') && fnIntegrity(cProto.onDockableMessagesChanged, '0.20.11')
  6823.  
  6824.             }
  6825.  
  6826.             if (doHack) {
  6827.  
  6828.               cProto.checkIntersections = function () {
  6829.                 // console.log('cProto.checkIntersections', tag)
  6830.                 if (this.dockableMessages.length) {
  6831.                   this.intersectRAF = rafHub.request(this.boundCheckIntersections);
  6832.                   let a = this.dockableMessages[0]
  6833.                     , b = this.hostElement.getBoundingClientRect();
  6834.                   a = a.getBoundingClientRect();
  6835.                   let c = a.top - b.top
  6836.                     , d = 8 >= c;
  6837.                   c = 8 >= c - this.hostElement.clientHeight;
  6838.                   if (d) {
  6839.                     let e;
  6840.                     for (; d;) {
  6841.                       e = this.dockableMessages.shift();
  6842.                       d = this.dockableMessages[0];
  6843.                       if (!d)
  6844.                         break;
  6845.                       d = d.getBoundingClientRect();
  6846.                       c = d.top - b.top;
  6847.                       let f = 8 >= c;
  6848.                       if (8 >= c - a.height)
  6849.                         if (f)
  6850.                           a = d;
  6851.                         else
  6852.                           return;
  6853.                       d = f
  6854.                     }
  6855.                     this.dock(e)
  6856.                   } else
  6857.                     c && this.dockedItem && this.clear()
  6858.                 } else
  6859.                   this.intersectRAF = 0
  6860.               }
  6861.  
  6862.               cProto.onDockableMessagesChanged = function () {
  6863.                 // console.log('cProto.onDockableMessagesChanged', tag) // yt-live-chat-docked-message
  6864.                 this.dockableMessages.length && !this.intersectRAF && (this.intersectRAF = rafHub.request(this.boundCheckIntersections))
  6865.               }
  6866.  
  6867.               cProto.detached = function () {
  6868.                 this.intersectRAF && rafHub.cancel(this.intersectRAF)
  6869.               }
  6870.  
  6871.               console.log('ENABLE_RAF_HACK_DOCKED_MESSAGE', tag, "OK")
  6872.             } else {
  6873.  
  6874.               console.log('ENABLE_RAF_HACK_DOCKED_MESSAGE', tag, "NG")
  6875.             }
  6876.  
  6877.           })();
  6878.  
  6879.           console.log("[End]");
  6880.  
  6881.           console.groupEnd();
  6882.  
  6883.         }).catch(console.warn);
  6884.  
  6885.       }
  6886.  
  6887.       if (FIX_SETSRC_AND_THUMBNAILCHANGE_) {
  6888.  
  6889.  
  6890.         customElements.whenDefined("yt-img-shadow").then(() => {
  6891.  
  6892.           mightFirstCheckOnYtInit();
  6893.           groupCollapsed("YouTube Super Fast Chat", " | yt-img-shadow hacks");
  6894.           console.log("[Begin]");
  6895.           (() => {
  6896.  
  6897.             const tag = "yt-img-shadow"
  6898.             const dummy = document.createElement(tag);
  6899.  
  6900.             const cProto = getProto(dummy);
  6901.             if (!cProto || !cProto.attached) {
  6902.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6903.               return;
  6904.             }
  6905.  
  6906.             if (typeof cProto.thumbnailChanged_ === 'function' && !cProto.thumbnailChanged66_) {
  6907.  
  6908.               cProto.thumbnailChanged66_ = cProto.thumbnailChanged_;
  6909.               cProto.thumbnailChanged_ = function (a) {
  6910.  
  6911.                 if (this.oldThumbnail_ && this.thumbnail && this.oldThumbnail_.thumbnails === this.thumbnail.thumbnails) return;
  6912.                 if (!this.oldThumbnail_ && !this.thumbnail) return;
  6913.  
  6914.                 return this.thumbnailChanged66_.apply(this, arguments)
  6915.  
  6916.               }
  6917.               console.log("cProto.thumbnailChanged_ - OK");
  6918.  
  6919.             } else {
  6920.               console.log("cProto.thumbnailChanged_ - NG");
  6921.  
  6922.             }
  6923.             if (typeof cProto.setSrc_ === 'function' && !cProto.setSrc66_) {
  6924.  
  6925.               cProto.setSrc66_ = cProto.setSrc_;
  6926.               cProto.setSrc_ = function (a) {
  6927.                 if ((((this || 0).$ || 0).img || 0).src === a) return;
  6928.                 return this.setSrc66_.apply(this, arguments)
  6929.               }
  6930.  
  6931.               console.log("cProto.setSrc_ - OK");
  6932.             } else {
  6933.  
  6934.               console.log("cProto.setSrc_ - NG");
  6935.             }
  6936.  
  6937.           })();
  6938.  
  6939.           console.log("[End]");
  6940.  
  6941.           console.groupEnd();
  6942.  
  6943.         }).catch(console.warn);
  6944.  
  6945.       }
  6946.  
  6947.       if (FIX_THUMBNAIL_DATACHANGED) {
  6948.  
  6949.  
  6950.  
  6951.         customElements.whenDefined("yt-live-chat-author-badge-renderer").then(() => {
  6952.  
  6953.           mightFirstCheckOnYtInit();
  6954.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-author-badge-renderer hacks");
  6955.           console.log("[Begin]");
  6956.           (() => {
  6957.  
  6958.             const tag = "yt-live-chat-author-badge-renderer"
  6959.             const dummy = document.createElement(tag);
  6960.  
  6961.             const cProto = getProto(dummy);
  6962.             if (!cProto || !cProto.attached) {
  6963.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6964.               return;
  6965.             }
  6966.  
  6967.  
  6968.             if (typeof cProto.dataChanged === 'function' && !cProto.dataChanged86 && '|1.163.100|1.162.100|1.160.97|1.159.97|'.includes(`|${fnIntegrity(cProto.dataChanged)}|`)) {
  6969.  
  6970.  
  6971.  
  6972.               cProto.dataChanged86 = cProto.dataChanged;
  6973.               cProto.dataChanged = function (a) {
  6974.  
  6975.                 /*
  6976.  
  6977.                   for (var b = xC(Z(this.hostElement).querySelector("#image")); b.firstChild; )
  6978.                       b.removeChild(b.firstChild);
  6979.                   if (a)
  6980.                       if (a.icon) {
  6981.                           var c = document.createElement("yt-icon");
  6982.                           "MODERATOR" === a.icon.iconType && this.enableNewModeratorBadge ? (c.icon = "yt-sys-icons:shield-filled",
  6983.                           c.defaultToFilled = !0) : c.icon = "live-chat-badges:" + a.icon.iconType.toLowerCase();
  6984.                           b.appendChild(c)
  6985.                       } else if (a.customThumbnail) {
  6986.                           c = document.createElement("img");
  6987.                           var d;
  6988.                           (d = (d = KC(a.customThumbnail.thumbnails, 16)) ? lc(oc(d)) : null) ? (c.src = d,
  6989.                           b.appendChild(c),
  6990.                           c.setAttribute("alt", this.hostElement.ariaLabel || "")) : lq(new tm("Could not compute URL for thumbnail",a.customThumbnail))
  6991.                       }
  6992.  
  6993.                 */
  6994.  
  6995.  
  6996.                 /* 2024.04.20 */
  6997.                 /*
  6998.                   for (var b = Tx(N(this.hostElement).querySelector("#image")); b.firstChild; )
  6999.                       b.removeChild(b.firstChild);
  7000.                   if (a)
  7001.                       if (a.icon) {
  7002.                           var c = document.createElement("yt-icon");
  7003.                           "MODERATOR" === a.icon.iconType && this.enableNewModeratorBadge ? (c.polymerController.icon = "yt-sys-icons:shield-filled",
  7004.                           c.polymerController.defaultToFilled = !0) : c.polymerController.icon = "live-chat-badges:" + a.icon.iconType.toLowerCase();
  7005.                           b.appendChild(c)
  7006.                       } else if (a.customThumbnail) {
  7007.                           c = document.createElement("img");
  7008.                           var d;
  7009.                           (d = (d = WD(a.customThumbnail.thumbnails, 16)) ? Sb(ec(d)) : null) ? (c.src = d,
  7010.                           b.appendChild(c),
  7011.                           c.setAttribute("alt", this.hostElement.ariaLabel || "")) : nr(new mn("Could not compute URL for thumbnail",a.customThumbnail))
  7012.                       }
  7013.                 */
  7014.  
  7015.                 const image = ((this || 0).$ || 0).image
  7016.                 if (image && a && image.firstElementChild) {
  7017.                   const exisiting = image.firstElementChild;
  7018.                   if (exisiting === image.lastElementChild) {
  7019.  
  7020.  
  7021.                     if (a.icon && exisiting.nodeName.toUpperCase() === 'YT-ICON') {
  7022.  
  7023.                       const c = exisiting;
  7024.                       const t = insp(c);
  7025.                       const w = ('icon' in t || 'defaultToFilled' in t) ? t : c;
  7026.                       if ("MODERATOR" === a.icon.iconType && this.enableNewModeratorBadge) {
  7027.                         if (w.icon !== "yt-sys-icons:shield-filled") w.icon = "yt-sys-icons:shield-filled";
  7028.                         if (w.defaultToFilled !== true) w.defaultToFilled = true;
  7029.                       } else {
  7030.                         const p = "live-chat-badges:" + a.icon.iconType.toLowerCase();;
  7031.                         if (w.icon !== p) w.icon = p;
  7032.                         if (w.defaultToFilled !== false) w.defaultToFilled = false;
  7033.                       }
  7034.                       return;
  7035.  
  7036.  
  7037.                     } else if (a.customThumbnail && exisiting.nodeName.toUpperCase() == 'IMG') {
  7038.  
  7039.                       const c = exisiting;
  7040.                       if (a.customThumbnail.thumbnails.map(e => e.url).includes(c.src)) {
  7041.  
  7042.                         c.setAttribute("alt", this.hostElement.ariaLabel || "");
  7043.                         return;
  7044.                       }
  7045.                       /*
  7046.  
  7047.                       var d;
  7048.                       (d = (d = KC(a.customThumbnail.thumbnails, 16)) ? lc(oc(d)) : null) ? (c.src = d,
  7049.  
  7050.  
  7051.                         c.setAttribute("alt", this.hostElement.ariaLabel || "")) : lq(new tm("Could not compute URL for thumbnail", a.customThumbnail))
  7052.                         */
  7053.                     }
  7054.  
  7055.  
  7056.                   }
  7057.                 }
  7058.                 return this.dataChanged86.apply(this, arguments)
  7059.  
  7060.               }
  7061.               console.log("cProto.dataChanged - OK");
  7062.  
  7063.             } else {
  7064.               assertor(() => fnIntegrity(cProto.dataChanged, '1.162.100'));
  7065.               console.log("cProto.dataChanged - NG");
  7066.  
  7067.             }
  7068.  
  7069.           })();
  7070.  
  7071.           console.log("[End]");
  7072.  
  7073.           console.groupEnd();
  7074.  
  7075.         }).catch(console.warn);
  7076.  
  7077.  
  7078.       }
  7079.  
  7080.  
  7081.       if (FIX_TOOLTIP_DISPLAY) {
  7082.  
  7083.         // ----------------------------------------------------------------------------------------------------
  7084.  
  7085.         const checkPDGet = (pd) => {
  7086.           return pd && pd.get && !pd.set && pd.enumerable && pd.configurable;
  7087.         }
  7088.  
  7089.         const tooltipUIWM = new WeakMap();
  7090.         const tooltipInitProps = {};
  7091.         const createTooltipIfRequired_ = function () {
  7092.           let r;
  7093.           if (tooltipUIWM.get(this) === void 0) {
  7094.             const w = document.createElement;
  7095.             let EU = null;
  7096.             tooltipUIWM.set(this, null);
  7097.             document.createElement = function () {
  7098.               let r = w.apply(this, arguments);
  7099.               EU = r;
  7100.               return r;
  7101.             };
  7102.             r = this.createTooltipIfRequired14_();
  7103.             document.createElement = w;
  7104.             if (EU instanceof HTMLElement && EU.is) {
  7105.               tooltipUIWM.set(this, EU);
  7106.  
  7107.               if (typeof EU.offset === 'number') tooltipInitProps['offset'] = EU.offset;
  7108.               if (typeof EU.fitToVisibleBounds === 'boolean') tooltipInitProps['fitToVisibleBounds'] = EU.fitToVisibleBounds;
  7109.               if (typeof EU.position === 'string') tooltipInitProps['position'] = EU.position;
  7110.               if (typeof EU.for === 'string') tooltipInitProps['for'] = EU.for;
  7111.  
  7112.               // this.__mcT__ = EU.outerHTML;
  7113.               // EU.__dataX = JSON.stringify(EU.__data);
  7114.               // EU.__dataY = Object.entries(EU);
  7115.  
  7116.               // <<< FOR DEBUG >>>
  7117.               // let kx;
  7118.               // Object.defineProperty(EU, '_target', {
  7119.               //   get(){
  7120.               //     return kx;
  7121.               //   },
  7122.               //   set(nv){
  7123.               //     kx= nv;
  7124.               //     debugger;
  7125.               //     return true;
  7126.               //   }
  7127.               // });
  7128.               // <<< FOR DEBUG >>>
  7129.  
  7130.               if (typeof Polymer !== 'undefined' && Polymer.__fixedGetOwnerRoot__ && Polymer.__fixedQuerySelector__) {
  7131.  
  7132.               } else {
  7133.                 let eProto = null;
  7134.                 const euCnt = insp(EU);
  7135.                 if (checkPDGet(Object.getOwnPropertyDescriptor(euCnt.constructor.prototype || {}, 'target'))) {
  7136.  
  7137.                   eProto = euCnt.constructor.prototype;
  7138.                 } else if (checkPDGet(Object.getOwnPropertyDescriptor(EU.constructor.prototype || {}, 'target'))) {
  7139.  
  7140.                   eProto = EU.constructor.prototype;
  7141.                 }
  7142.                 if (eProto) {
  7143.                   delete eProto.target;
  7144.                   /*
  7145.     
  7146.                       get target() {
  7147.                           var a = Pv(this).parentNode, b = Pv(this).getOwnerRoot(), c;
  7148.                           this.for ? c = Pv(b).querySelector("#" + this.for) : c = a.nodeType == Node.DOCUMENT_FRAGMENT_NODE ? b.host : a;
  7149.                           return c
  7150.                       },
  7151.                   */
  7152.                   Object.defineProperty(eProto, 'target', {
  7153.                     get() {
  7154.                       let a = this.parentNode, b = this.getRootNode();
  7155.                       return (this.for ? b.querySelector("#" + this.for) : a)
  7156.                     }
  7157.                   })
  7158.                 }
  7159.               }
  7160.               // setInterval(()=>EU.updatePosition(), 100)
  7161.  
  7162.             } else {
  7163.               tooltipUIWM.set(this, null);
  7164.             }
  7165.           } else {
  7166.             r = this.createTooltipIfRequired14_();
  7167.           }
  7168.  
  7169.  
  7170.           const EU = tooltipUIWM.get(this);
  7171.           if (EU) {
  7172.  
  7173.             // EU.innerHTML='';
  7174.             // let t;
  7175.             // if(EU.parentElement instanceof HTMLElement) {
  7176.  
  7177.             //     for(const s of EU.querySelectorAll('*')){
  7178.             //      if(s.firstChild instanceof Text) s.firstChild.nodeValue = '';
  7179.             //    }
  7180.  
  7181.             //     for(const s of EU.querySelectorAll('.hidden')){
  7182.             //      s.classList.remove('hidden');
  7183.             //   //    if(s.firstChild instanceof Text) s.firstChild.nodeValue = '';
  7184.             //    }
  7185.             // }
  7186.  
  7187.             EU.remove();
  7188.             // EU.removeAttribute('class');
  7189.             // EU.removeAttribute('role');
  7190.             // EU.removeAttribute('tabindex');
  7191.             // EU.removeAttribute('style');
  7192.  
  7193.  
  7194.             if (typeof tooltipInitProps.offset === 'number') EU['offset'] = tooltipInitProps.offset;
  7195.             if (typeof tooltipInitProps.fitToVisibleBounds === 'boolean') EU['fitToVisibleBounds'] = tooltipInitProps.fitToVisibleBounds;
  7196.             try {
  7197.               if (typeof tooltipInitProps.position === 'string') EU['position'] = tooltipInitProps.position;
  7198.               if (typeof tooltipInitProps.for === 'string') EU['for'] = tooltipInitProps.for; else delete EU.for;
  7199.             } catch (e) { }
  7200.  
  7201.             // EU.__data = JSON.parse(EU.__dataX);
  7202.  
  7203.             // EU.__dataEnabled = false;
  7204.             // EU.__dataReady = false;
  7205.             // EU.__dataClientsReady = false;
  7206.             // delete EU.__templateInfo;
  7207.             // delete EU.$;
  7208.             // delete EU.__shady;
  7209.             // delete EU.__CE_shadowRoot;
  7210.             // delete EU.__boundListeners;
  7211.             // delete EU.__boundListeners;
  7212.  
  7213.             // EU.for = undefined;
  7214.  
  7215.             //  EU.animationDelay = 500;
  7216.             //  EU.position = 'bottom';
  7217.             //  Promise.resolve(()=>EU.updatePosition())
  7218.           }
  7219.  
  7220.           // console.log(192, EU, EU.for);
  7221.           // EU.innerHTML = '';
  7222.           return r;
  7223.  
  7224.  
  7225.         };
  7226.  
  7227.  
  7228.         // added in 2024.05.02
  7229.         getLCRDummy().then(async (lcrDummy) => {
  7230.  
  7231.           // console.log(8171, 99);
  7232.           const tag = "yt-live-chat-renderer"
  7233.           const dummy = lcrDummy;
  7234.  
  7235.           const cProto = getProto(dummy);
  7236.           if (!cProto || !cProto.attached) {
  7237.             console.warn(`proto.attached for ${tag} is unavailable.`);
  7238.             return;
  7239.           }
  7240.  
  7241.  
  7242.           /*
  7243.           <tp-yt-paper-tooltip class="style-scope yt-live-chat-author-badge-renderer" role="tooltip" tabindex="-1" style="--paper-tooltip-delay-in: 0ms; inset: -63.3984px auto auto 0px;
  7244.           */
  7245.  
  7246.           if (cProto && typeof cProto.createTooltipIfRequired_ === 'function' && cProto.createTooltipIfRequired_.length === 0 && !cProto.createTooltipIfRequired14_) {
  7247.             // console.log(8172);
  7248.             cProto.createTooltipIfRequired14_ = cProto.createTooltipIfRequired_;
  7249.             cProto.createTooltipIfRequired_ = createTooltipIfRequired_;
  7250.  
  7251.  
  7252.           }
  7253.  
  7254.         });
  7255.  
  7256.         // ----------------------------------------------------------------------------------------------------
  7257.  
  7258.         customElements.whenDefined("tp-yt-paper-tooltip").then(() => {
  7259.  
  7260.           mightFirstCheckOnYtInit();
  7261.           groupCollapsed("YouTube Super Fast Chat", " | tp-yt-paper-tooltip hacks");
  7262.           console.log("[Begin]");
  7263.           (() => {
  7264.  
  7265.             const tag = "tp-yt-paper-tooltip"
  7266.             const dummy = document.createElement(tag);
  7267.  
  7268.             const cProto = getProto(dummy);
  7269.             if (!cProto || !cProto.attached) {
  7270.               console.warn(`proto.attached for ${tag} is unavailable.`);
  7271.               return;
  7272.             }
  7273.  
  7274.             if (typeof cProto.attached === 'function' && typeof cProto.detached === 'function' && cProto._readyClients && cProto._attachDom && cProto.ready && !cProto._readyClients43) {
  7275.  
  7276.               cProto._readyClients43 = cProto._readyClients;
  7277.               cProto._readyClients = function () {
  7278.                 // console.log(1238)
  7279.  
  7280.                 let r = cProto._readyClients43.apply(this, arguments);
  7281.                 if (this.$ && this.$$ && this.$.tooltip) this.root = null; // fix this.root = null != (b = a.root) ? b : this.host
  7282.                 return r;
  7283.               }
  7284.  
  7285.               console.log("_readyClients - OK");
  7286.  
  7287.             } else {
  7288.               console.log("_readyClients - NG");
  7289.  
  7290.             }
  7291.  
  7292.             if (typeof cProto.show === 'function' && !cProto.show17) {
  7293.               cProto.show17 = cProto.show;
  7294.               cProto.show = function () {
  7295.  
  7296.                 let r = this.show17.apply(this, arguments);
  7297.                 this._showing === true && Promise.resolve().then(() => {
  7298.                   const tooltip = (this.$ || 0).tooltip;
  7299.  
  7300.                   if (tooltip && tooltip.firstElementChild === null) {
  7301.                     let text = tooltip.textContent;
  7302.                     if (typeof text === 'string' && text.length >= 2) {
  7303.                       tooltip.textContent = text.trim();
  7304.                     }
  7305.                   }
  7306.                 }).catch(console.warn)
  7307.                 return r;
  7308.               }
  7309.  
  7310.               console.log("trim tooltip content - OK");
  7311.  
  7312.             } else {
  7313.               console.log("trim tooltip content - NG");
  7314.  
  7315.             }
  7316.  
  7317.             /*
  7318.             cProto.updatePosition61 = cProto.updatePosition;
  7319.  
  7320.  
  7321.             cProto.updatePosition = function () {
  7322.  
  7323.  
  7324.               if (this._target && this.offsetParent) {
  7325.                 var a = this.offset;
  7326.                 14 != this.marginTop && 14 == this.offset && (a = this.marginTop);
  7327.                 var b = this.offsetParent.getBoundingClientRect()
  7328.                   , c = this._target.getBoundingClientRect()
  7329.                   , d = this.getBoundingClientRect()
  7330.                   , e = (c.width - d.width) / 2
  7331.                   , h = (c.height - d.height) / 2
  7332.                   , l = c.left - b.left
  7333.                   , m = c.top - b.top;
  7334.                 switch (this.position) {
  7335.                   case "top":
  7336.                     var p = l + e;
  7337.                     var q = m - d.height - a;
  7338.                     break;
  7339.                   case "bottom":
  7340.                     p = l + e;
  7341.                     q = m + c.height + a;
  7342.                     break;
  7343.                   case "left":
  7344.                     p = l - d.width - a;
  7345.                     q = m + h;
  7346.                     break;
  7347.                   case "right":
  7348.                     p = l + c.width + a,
  7349.                       q = m + h;
  7350.                 }
  7351.  
  7352.               if(this.ascee) {
  7353.                 this.fitToVisibleBounds = false;
  7354.               }
  7355.                 this.fitToVisibleBounds ? (b.left + p + d.width > window.innerWidth ? (this.style.right = "0px",
  7356.                   this.style.left = "auto") : (this.style.left = Math.max(0, p) + "px",
  7357.                     this.style.right = "auto"),
  7358.                   b.top + q + d.height > window.innerHeight ? (this.style.bottom = b.height + "px",
  7359.                     this.style.top = "auto") : (this.style.top = Math.max(-b.top, q) + "px",
  7360.                       this.style.bottom = "auto")) : (this.style.left = p + "px",
  7361.                         this.style.top = q + "px")
  7362.               }
  7363.             }
  7364.  
  7365.             cProto.updateStyles61 = cProto.updateStyles;
  7366.             cProto.updateStyles= function(){
  7367.               if(this.ascee) return;
  7368.               return this.updateStyles61.apply(this,arguments);
  7369.             }
  7370.             */
  7371.  
  7372.  
  7373.           })();
  7374.  
  7375.           console.log("[End]");
  7376.  
  7377.           console.groupEnd();
  7378.  
  7379.         }).catch(console.warn);
  7380.  
  7381.  
  7382.  
  7383.       }
  7384.  
  7385.  
  7386.  
  7387.       if (FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK) {
  7388.  
  7389.  
  7390.         const hookDocumentMouseDownSetupFn = () => {
  7391.  
  7392.  
  7393.  
  7394.           let muzTimestamp = 0;
  7395.           let nszDropdown = null;
  7396.  
  7397.  
  7398.  
  7399.           const handlerObject = {
  7400.  
  7401.             // mdHandler282 : function (evt) {
  7402.             //   // console.log(evt, 1, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  7403.             //   if (!evt || !evt.isTrusted) return;
  7404.             //   muzTimestamp = 0;
  7405.             //   nszDropdown = null;
  7406.  
  7407.             //   const hostElement = this.hostElement || this;
  7408.             //   if (!evt || !evt.isTrusted || !hostElement.hasAttribute('menu-visible')) return;
  7409.             //   if (!hostElement.contains(evt.target)) return;
  7410.             //   let targetDropDown = null;
  7411.             //   for(const dropdown of document.querySelectorAll('tp-yt-iron-dropdown.style-scope.yt-live-chat-app')){
  7412.             //     if(dropdown && dropdown.positionTarget && hostElement.contains( dropdown.positionTarget)){
  7413.             //       targetDropDown = dropdown;
  7414.             //     }
  7415.             //   }
  7416.             //   if ((nszDropdown = targetDropDown)) {
  7417.             //     muzTimestamp = Date.now();
  7418.             //     evt.stopImmediatePropagation();
  7419.             //     evt.stopPropagation();
  7420.             //   }
  7421.  
  7422.             // },
  7423.  
  7424.  
  7425.             muHandler282: function (evt) {
  7426.               // console.log(evt, 7, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  7427.               if (!evt || !evt.isTrusted || !muzTimestamp) return;
  7428.               const dropdown = nszDropdown;
  7429.               muzTimestamp = 0;
  7430.               nszDropdown = null;
  7431.  
  7432.               const kurMPCe = kRef(currentMenuPivotWR) || 0;
  7433.               const hostElement = kurMPCe.hostElement || kurMPCe; // should be always hostElement === kurMPCe ?
  7434.               if (!hostElement.hasAttribute('menu-visible')) return;
  7435.  
  7436.               const chatBanner = HTMLElement.prototype.closest.call(hostElement, 'yt-live-chat-banner-renderer') || 0;
  7437.               if (chatBanner) return;
  7438.  
  7439.               if (dropdown && dropdown.positionTarget && hostElement.contains(dropdown.positionTarget)) {
  7440.  
  7441.                 /*
  7442.                 const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  7443.                 if(parentButton) return;
  7444.                 */
  7445.  
  7446.                 muzTimestamp = Date.now();
  7447.                 evt.stopImmediatePropagation();
  7448.                 evt.stopPropagation();
  7449.                 Promise.resolve(dropdown).then((dropdown) => {
  7450.                   dropdown.cancel();
  7451.                 });
  7452.                 // document.body.click();
  7453.               }
  7454.  
  7455.             },
  7456.  
  7457.             mlHandler282: function (evt) {
  7458.               muzTimestamp = 0;
  7459.               nszDropdown = null;
  7460.             },
  7461.  
  7462.             ckHandler282: function (evt) {
  7463.               // console.log(evt, 3, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  7464.  
  7465.               if (!evt || !evt.isTrusted || !muzTimestamp) return;
  7466.               if (Date.now() - muzTimestamp < 40) {
  7467.  
  7468.                 /*
  7469.                 const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  7470.                 if(parentButton) return;
  7471.                 */
  7472.  
  7473.                 muzTimestamp = Date.now();
  7474.                 evt.stopImmediatePropagation();
  7475.                 evt.stopPropagation();
  7476.               }
  7477.  
  7478.             },
  7479.  
  7480.             tapHandler282: function (evt) {
  7481.               // console.log(evt, 2, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  7482.  
  7483.               if (!evt || !evt.isTrusted || !muzTimestamp) return;
  7484.               if (Date.now() - muzTimestamp < 40) {
  7485.  
  7486.                 /*
  7487.                 const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  7488.                 if(parentButton) return;
  7489.                 */
  7490.  
  7491.                 muzTimestamp = Date.now();
  7492.                 evt.stopImmediatePropagation();
  7493.                 evt.stopPropagation();
  7494.               }
  7495.  
  7496.             },
  7497.  
  7498.  
  7499.             handleEvent(evt) {
  7500.  
  7501.  
  7502.               if (evt) {
  7503.                 const kurMPCe = kRef(currentMenuPivotWR) || 0;
  7504.                 const kurMPCc = insp(kurMPCe);
  7505.                 const hostElement = kurMPCc.hostElement || kurMPCc;
  7506.                 if (!kurMPCc || kurMPCc.isAttached !== true || hostElement.isConnected !== true) return;
  7507.                 switch (evt.type) {
  7508.                   // case 'mousedown':
  7509.                   // return this.mdHandler282.call(kurMPCe, evt);
  7510.                   case 'mouseup':
  7511.                     return this.muHandler282(evt);
  7512.                   case 'mouseleave':
  7513.                     return this.mlHandler282(evt);
  7514.                   case 'tap':
  7515.                     return this.tapHandler282(evt);
  7516.                   case 'click':
  7517.                     return this.ckHandler282(evt);
  7518.                 }
  7519.               }
  7520.  
  7521.             }
  7522.  
  7523.  
  7524.  
  7525.           }
  7526.  
  7527.           document.addEventListener('mousedown', function (evt) {
  7528.  
  7529.             if (!evt || !evt.isTrusted || !evt.target) return;
  7530.  
  7531.  
  7532.  
  7533.             muzTimestamp = 0;
  7534.             nszDropdown = null;
  7535.  
  7536.             /*
  7537.             const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  7538.             if(parentButton){
  7539.               const kurMPCe = HTMLElement.prototype.closest.call(parentButton, '[whole-message-clickable]') || 0;
  7540.               if(kurMPCe){
  7541.                 evt.preventDefault();
  7542.                 evt.stopImmediatePropagation();
  7543.                 evt.stopPropagation();
  7544.               }
  7545.               return;
  7546.             }
  7547.             */
  7548.  
  7549.             /** @type {HTMLElement | null} */
  7550.             const kurMP = kRef(currentMenuPivotWR);
  7551.             if (!kurMP) return;
  7552.             const kurMPCe = HTMLElement.prototype.closest.call(kurMP, '[menu-visible]') || 0; // element
  7553.  
  7554.             if (!kurMPCe || !kurMPCe.hasAttribute('whole-message-clickable')) return;
  7555.  
  7556.             const kurMPCc = insp(kurMPCe); // controller
  7557.  
  7558.             if (!kurMPCc.isClickableChatRow111 || !kurMPCc.isClickableChatRow111() || !HTMLElement.prototype.contains.call(kurMPCe, evt.target)) return;
  7559.  
  7560.             const chatBanner = HTMLElement.prototype.closest.call(kurMPCe, 'yt-live-chat-banner-renderer') || 0;
  7561.             if (chatBanner) return;
  7562.  
  7563.  
  7564.             let targetDropDown = null;
  7565.             for (const dropdown of document.querySelectorAll('tp-yt-iron-dropdown.style-scope.yt-live-chat-app')) {
  7566.               if (dropdown && dropdown.positionTarget === kurMP) {
  7567.                 targetDropDown = dropdown;
  7568.               }
  7569.             }
  7570.  
  7571.             if (!targetDropDown) return;
  7572.  
  7573.  
  7574.             /*
  7575.             if (parentButton) {
  7576.               evt.preventDefault();
  7577.               evt.stopImmediatePropagation();
  7578.               evt.stopPropagation();
  7579.               currentMenuPivotWR = mWeakRef(kurMPCe);
  7580.               return;
  7581.             }
  7582.             */
  7583.  
  7584.             if ((nszDropdown = targetDropDown)) {
  7585.               muzTimestamp = Date.now();
  7586.               evt.stopImmediatePropagation();
  7587.               evt.stopPropagation();
  7588.               currentMenuPivotWR = mWeakRef(kurMPCe);
  7589.  
  7590.               const listenOpts = { capture: true, passive: false, once: true };
  7591.  
  7592.               // remove unexcecuted eventHandler
  7593.               document.removeEventListener('mouseup', handlerObject, listenOpts);
  7594.               document.removeEventListener('mouseleave', handlerObject, listenOpts);
  7595.               document.removeEventListener('tap', handlerObject, listenOpts);
  7596.               document.removeEventListener('click', handlerObject, listenOpts);
  7597.  
  7598.               // inject one time eventHandler to by pass events
  7599.               document.addEventListener('mouseup', handlerObject, listenOpts);
  7600.               document.addEventListener('mouseleave', handlerObject, listenOpts);
  7601.               document.addEventListener('tap', handlerObject, listenOpts);
  7602.               document.addEventListener('click', handlerObject, listenOpts);
  7603.  
  7604.             }
  7605.  
  7606.           }, true);
  7607.  
  7608.         }
  7609.  
  7610.  
  7611.         // yt-live-chat-paid-message-renderer ??
  7612.  
  7613.         /*
  7614.  
  7615.         [...(new Set([...document.querySelectorAll('*')].filter(e=>e.is&&('shouldSupportWholeItemClick' in e)).map(e=>e.is))).keys()]
  7616.  
  7617.  
  7618.         "yt-live-chat-ticker-paid-message-item-renderer"
  7619.         "yt-live-chat-ticker-paid-sticker-item-renderer"
  7620.         "yt-live-chat-paid-message-renderer"
  7621.         "yt-live-chat-text-message-renderer"
  7622.         "yt-live-chat-paid-sticker-renderer"
  7623.  
  7624.         */
  7625.  
  7626.  
  7627.         whenDefinedMultiple([
  7628.  
  7629.           "yt-live-chat-paid-message-renderer",
  7630.           "yt-live-chat-membership-item-renderer",
  7631.           "yt-live-chat-paid-sticker-renderer",
  7632.           "yt-live-chat-text-message-renderer",
  7633.           "yt-live-chat-auto-mod-message-renderer",
  7634.  
  7635.           /*
  7636.           "yt-live-chat-ticker-paid-message-item-renderer",
  7637.           "yt-live-chat-ticker-paid-sticker-item-renderer",
  7638.           "yt-live-chat-paid-message-renderer",
  7639.           "yt-live-chat-text-message-renderer",
  7640.           "yt-live-chat-paid-sticker-renderer",
  7641.  
  7642.           "yt-live-chat-ticker-sponsor-item-renderer",
  7643.           "yt-live-chat-banner-header-renderer",
  7644.           "ytd-sponsorships-live-chat-gift-purchase-announcement-renderer",
  7645.           "ytd-sponsorships-live-chat-header-renderer",
  7646.           "ytd-sponsorships-live-chat-gift-redemption-announcement-renderer",
  7647.  
  7648.  
  7649.  
  7650.  
  7651.           "yt-live-chat-auto-mod-message-renderer",
  7652.           "yt-live-chat-text-message-renderer",
  7653.           "yt-live-chat-paid-message-renderer",
  7654.  
  7655.           "yt-live-chat-legacy-paid-message-renderer",
  7656.           "yt-live-chat-membership-item-renderer",
  7657.           "yt-live-chat-paid-sticker-renderer",
  7658.           "yt-live-chat-donation-announcement-renderer",
  7659.           "yt-live-chat-moderation-message-renderer",
  7660.           "ytd-sponsorships-live-chat-gift-purchase-announcement-renderer",
  7661.           "ytd-sponsorships-live-chat-gift-redemption-announcement-renderer",
  7662.           "yt-live-chat-viewer-engagement-message-renderer",
  7663.  
  7664.           */
  7665.  
  7666.  
  7667.         ]).then(sTags => {
  7668.  
  7669.  
  7670.           mightFirstCheckOnYtInit();
  7671.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-message-renderer(s)... hacks");
  7672.           console.log("[Begin]");
  7673.           let doMouseHook = false;
  7674.  
  7675.           const dProto = {
  7676.             isClickableChatRow111: function () {
  7677.               return (
  7678.                 this.data && typeof this.shouldSupportWholeItemClick === 'function' && typeof this.hasModerationOverlayVisible === 'function' &&
  7679.                 this.data.contextMenuEndpoint && this.wholeMessageClickable && this.shouldSupportWholeItemClick() && !this.hasModerationOverlayVisible()
  7680.               ); // follow .onItemTap(a)
  7681.             }
  7682.           };
  7683.  
  7684.           for (const sTag of sTags) { // ##tag##
  7685.  
  7686.  
  7687.             (() => {
  7688.  
  7689.               const tag = sTag;
  7690.               const dummy = document.createElement(tag);
  7691.  
  7692.               const cProto = getProto(dummy);
  7693.               if (!cProto || !cProto.attached) {
  7694.                 console.warn(`proto.attached for ${tag} is unavailable.`);
  7695.                 return;
  7696.               }
  7697.  
  7698.               const dCnt = insp(dummy);
  7699.               if ('wholeMessageClickable' in dCnt && typeof dCnt.hasModerationOverlayVisible === 'function' && typeof dCnt.shouldSupportWholeItemClick === 'function') {
  7700.  
  7701.                 cProto.isClickableChatRow111 = dProto.isClickableChatRow111;
  7702.  
  7703.                 const toHookDocumentMouseDown = typeof cProto.shouldSupportWholeItemClick === 'function' && typeof cProto.hasModerationOverlayVisible === 'function';
  7704.  
  7705.                 if (toHookDocumentMouseDown) {
  7706.                   doMouseHook = true;
  7707.                 }
  7708.  
  7709.                 console.log("shouldSupportWholeItemClick Y", tag);
  7710.  
  7711.               } else {
  7712.  
  7713.                 console.log("shouldSupportWholeItemClick N", tag);
  7714.               }
  7715.  
  7716.  
  7717.             })();
  7718.  
  7719.           }
  7720.  
  7721.  
  7722.           if (doMouseHook) {
  7723.  
  7724.             hookDocumentMouseDownSetupFn();
  7725.  
  7726.  
  7727.             console.log("FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK - Doc MouseEvent OK");
  7728.           }
  7729.  
  7730.           console.log("[End]");
  7731.  
  7732.           console.groupEnd();
  7733.  
  7734.  
  7735.         }).catch(console.warn);
  7736.  
  7737.  
  7738.         // https://www.youtube.com/watch?v=oQzFi1NO7io
  7739.  
  7740.  
  7741.       }
  7742.  
  7743.       if (NO_ITEM_TAP_FOR_NON_STATIONARY_TAP) {
  7744.         let targetElementCntWR = null;
  7745.         let _e0 = null;
  7746.         document.addEventListener('mousedown', (e) => {
  7747.           if (!e || !e.isTrusted) return;
  7748.           let element = e.target;
  7749.           for (; element instanceof HTMLElement; element = element.parentNode) {
  7750.             if (element.is) break;
  7751.           }
  7752.           if (!element || !element.is) return;
  7753.           const cnt = insp(element);
  7754.           if (typeof cnt.onItemTap === 'function') {
  7755.             cnt._onItemTap_isNonStationary = 0;
  7756.             const cProto = getProto(element);
  7757.             if (!cProto.onItemTap366 && typeof cProto.onItemTap === 'function' && cProto.onItemTap.length === 1) {
  7758.               cProto.onItemTap366 = cProto.onItemTap;
  7759.               cProto.onItemTap = function (a) {
  7760.                 const t = this._onItemTap_isNonStationary;
  7761.                 this._onItemTap_isNonStationary = 0;
  7762.                 if (t > Date.now()) return;
  7763.                 return this.onItemTap366.apply(this, arguments)
  7764.               }
  7765.             }
  7766.             _e0 = e;
  7767.             targetElementCntWR = mWeakRef(cnt);
  7768.           } else {
  7769.             _e0 = null;
  7770.             targetElementCntWR = null;
  7771.           }
  7772.         }, { capture: true, passive: true });
  7773.  
  7774.         document.addEventListener('mouseup', (e) => {
  7775.           if (!e || !e.isTrusted) return;
  7776.           const e0 = _e0;
  7777.           _e0 = null;
  7778.           if (!e0) return;
  7779.           const cnt = kRef(targetElementCntWR);
  7780.           targetElementCntWR = null;
  7781.           if (!cnt) return;
  7782.           if (e.timeStamp - e0.timeStamp > TAP_ACTION_DURATION) {
  7783.             cnt._onItemTap_isNonStationary = Date.now() + 40;
  7784.           } else if ((window.getSelection() + "").trim().replace(/[\u2000-\u200a\u202f\u2800\u200B\u200C\u200D\uFEFF]+/g, '').length >= 1) {
  7785.             cnt._onItemTap_isNonStationary = Date.now() + 40;
  7786.           } else {
  7787.             const dx = e.clientX - e0.clientX;
  7788.             const dy = e.clientY - e0.clientY;
  7789.             const dd = Math.sqrt(dx * dx + dy * dy);
  7790.             const ddmm = px2mm(dd);
  7791.             if (ddmm > 1.0) {
  7792.               cnt._onItemTap_isNonStationary = Date.now() + 40;
  7793.             } else {
  7794.               cnt._onItemTap_isNonStationary = 0;
  7795.             }
  7796.           }
  7797.         }, { capture: true, passive: true });
  7798.  
  7799.       }
  7800.  
  7801.  
  7802.       const __showContextMenu_assign_lock_with_external_unlock_ = function (targetCnt) {
  7803.  
  7804.         let rr = null;
  7805.         const p1 = new Promise(resolve => {
  7806.           rr = resolve;
  7807.         });
  7808.  
  7809.         const p1unlock = () => {
  7810.           const f = rr;
  7811.           if (f) {
  7812.             rr = null;
  7813.             f();
  7814.           }
  7815.         }
  7816.  
  7817.         return {
  7818.           p1,
  7819.           p1unlock,
  7820.           assignLock: (targetCnt, timeout) => {
  7821.             targetCnt.__showContextMenu_assign_lock__(p1);
  7822.             if (timeout) setTimeout(p1unlock, timeout);
  7823.           }
  7824.         }
  7825.  
  7826.       }
  7827.  
  7828.       if (PREREQUEST_CONTEXT_MENU_ON_MOUSE_DOWN) {
  7829.  
  7830.         document.addEventListener('mousedown', function (evt) {
  7831.  
  7832.           const maxloopDOMTreeElements = 4;
  7833.           const maxloopYtCompontents = 4;
  7834.           let j1 = 0;
  7835.           let j2 = 0;
  7836.           let target = (evt || 0).target || 0;
  7837.           if (!target) return;
  7838.  
  7839.  
  7840.           while (target instanceof HTMLElement) {
  7841.             if (++j1 > maxloopDOMTreeElements) break;
  7842.             if (typeof (target.is || insp(target).is || null) === 'string') break;
  7843.             target = nodeParent(target);
  7844.           }
  7845.           const components = [];
  7846.           while (target instanceof HTMLElement) {
  7847.             if (++j2 > maxloopYtCompontents) break;
  7848.             const cnt = insp(target);
  7849.             if (typeof (target.is || cnt.is || null) === 'string') {
  7850.               components.push(target);
  7851.             }
  7852.             if (typeof cnt.showContextMenu === 'function') break;
  7853.             target = target.parentComponent || cnt.parentComponent || null;
  7854.           }
  7855.           if (!(target instanceof HTMLElement)) return;
  7856.           const targetCnt = insp(target);
  7857.           if (typeof targetCnt.handleGetContextMenuResponse_ !== 'function' || typeof targetCnt.handleGetContextMenuError !== 'function') {
  7858.             console.log('Error Found: handleGetContextMenuResponse_ OR handleGetContextMenuError is not defined on a component with showContextMenu')
  7859.             return;
  7860.           }
  7861.  
  7862.           const endpoint = (targetCnt.data || 0).contextMenuEndpoint
  7863.           if (!endpoint) return;
  7864.           if (targetCnt.opened || !targetCnt.isAttached) return;
  7865.  
  7866.           if (typeof targetCnt.__cacheResolvedEndpointData__ !== 'function') {
  7867.             console.log(`preRequest for showContextMenu in ${targetCnt.is} is not yet supported.`)
  7868.           }
  7869.  
  7870.           const targetDollar = indr(target);
  7871.  
  7872.           let doPreRequest = false;
  7873.           if (components.length >= 2 && components[0].id === 'menu-button' && (targetDollar || 0)['menu-button'] === components[0]) {
  7874.             doPreRequest = true;
  7875.           } else if (components.length === 1 && components[0] === target) {
  7876.             doPreRequest = true;
  7877.           } else if (components.length >= 2 && components[0].id === 'author-photo' && (targetDollar || 0)['author-photo'] === components[0]) {
  7878.             doPreRequest = true;
  7879.           }
  7880.           if (doPreRequest === false) {
  7881.             console.log('doPreRequest = fasle on showContextMenu', components);
  7882.             return;
  7883.           }
  7884.  
  7885.           if (typeof targetCnt.__getCachedEndpointData__ !== 'function' || targetCnt.__getCachedEndpointData__(endpoint)) return;
  7886.  
  7887.           if ((typeof targetCnt.__showContextMenu_mutex_unlock_isEmpty__ === 'function') && !targetCnt.__showContextMenu_mutex_unlock_isEmpty__()) {
  7888.             console.log('preRequest on showContextMenu aborted due to stacked network request');
  7889.             return;
  7890.           }
  7891.  
  7892.  
  7893.           const onSuccess = (a) => {
  7894.             /*
  7895.  
  7896.               dQ() && (a = a.response);
  7897.               a.liveChatItemContextMenuSupportedRenderers && a.liveChatItemContextMenuSupportedRenderers.menuRenderer && this.showContextMenu_(a.liveChatItemContextMenuSupportedRenderers.menuRenderer);
  7898.               a.actions && Eu(this.hostElement, "yt-live-chat-actions", [a.actions])
  7899.  
  7900.             */
  7901.  
  7902.             a = a.response || a;
  7903.  
  7904.             if (!a) {
  7905.               console.log('unexpected error in prerequest for showContextMenu.onSuccess');
  7906.               return;
  7907.             }
  7908.  
  7909.             let z = null;
  7910.             a.liveChatItemContextMenuSupportedRenderers && a.liveChatItemContextMenuSupportedRenderers.menuRenderer && (z = a.liveChatItemContextMenuSupportedRenderers.menuRenderer);
  7911.  
  7912.             if (z) {
  7913.               a = z;
  7914.               targetCnt.__cacheResolvedEndpointData__(endpoint, a, true);
  7915.             }
  7916.  
  7917.           };
  7918.           const onFailure = (a) => {
  7919.  
  7920.             /*
  7921.  
  7922.               if (a instanceof Error || a instanceof Object || a instanceof String)
  7923.                   var b = a;
  7924.               hq(new xm("Error encountered calling GetLiveChatItemContextMenu",b))
  7925.  
  7926.             */
  7927.  
  7928.             targetCnt.__cacheResolvedEndpointData__(endpoint, null);
  7929.             // console.log('onFailure', a)
  7930.  
  7931.           };
  7932.  
  7933.           if (doPreRequest) {
  7934.  
  7935.             let propertyCounter = 0;
  7936.             const pm1 = __showContextMenu_assign_lock_with_external_unlock_(targetCnt);
  7937.             const p1Timeout = 800;
  7938.             const proxyKey = '__$$__proxy_to_this__$$__' + Date.now();
  7939.  
  7940.             try {
  7941.  
  7942.               const onSuccessHelperFn = function () {
  7943.                 pm1.p1unlock();
  7944.                 if (propertyCounter !== 5) {
  7945.                   console.log('Error in prerequest for showContextMenu.onSuccessHelperFn')
  7946.                   return;
  7947.                 }
  7948.                 if (this[proxyKey] !== targetCnt) {
  7949.                   console.log('Error in prerequest for showContextMenu.this');
  7950.                   return;
  7951.                 }
  7952.                 onSuccess(...arguments);
  7953.               };
  7954.               const onFailureHelperFn = function () {
  7955.                 pm1.p1unlock();
  7956.                 if (propertyCounter !== 5) {
  7957.                   console.log('Error in prerequest for showContextMenu.onFailureHelperFn')
  7958.                   return;
  7959.                 }
  7960.                 if (this[proxyKey] !== targetCnt) {
  7961.                   console.log('Error in prerequest for showContextMenu.this');
  7962.                   return;
  7963.                 }
  7964.                 onFailure(...arguments);
  7965.  
  7966.               }
  7967.               const fakeTargetCnt = new Proxy({
  7968.                 __showContextMenu_forceNativeRequest__: 1,
  7969.                 __showContextMenu_sync_mode_request__: 1,
  7970.                 get handleGetContextMenuResponse_() {
  7971.                   propertyCounter += 2;
  7972.                   return onSuccessHelperFn;
  7973.                 },
  7974.                 get handleGetContextMenuError() {
  7975.                   propertyCounter += 3;
  7976.                   return onFailureHelperFn;
  7977.                 }
  7978.               }, {
  7979.                 get(_, key, receiver) {
  7980.                   if (key in _) return _[key];
  7981.                   if (key === proxyKey) return targetCnt;
  7982.  
  7983.                   let giveNative = false;
  7984.                   if (key in targetCnt) {
  7985.                     if (key === 'data') giveNative = true;
  7986.                     else if (typeof targetCnt[key] === 'function') giveNative = true;
  7987.                   }
  7988.                   if (giveNative) return targetCnt[key];
  7989.                 }
  7990.               });
  7991.  
  7992.               const fakeEvent = (() => {
  7993.                 const { target, bubbles, cancelable, cancelBubble, srcElement, timeStamp, defaultPrevented, currentTarget, composed } = evt;
  7994.                 const nf = function () { }
  7995.                 const [stopPropagation, stopImmediatePropagation, preventDefault] = [nf, nf, nf];
  7996.  
  7997.                 return {
  7998.                   type: 'tap',
  7999.                   eventPhase: 0,
  8000.                   isTrusted: false,
  8001.                   __composed: true,
  8002.                   bubbles, cancelable, cancelBubble, timeStamp,
  8003.                   target, srcElement, defaultPrevented, currentTarget, composed,
  8004.                   stopPropagation, stopImmediatePropagation, preventDefault
  8005.                 };
  8006.               })(evt);
  8007.               targetCnt.showContextMenu.call(fakeTargetCnt, fakeEvent);
  8008.  
  8009.  
  8010.             } catch (e) {
  8011.               console.warn(e);
  8012.               propertyCounter = 7;
  8013.  
  8014.             }
  8015.             if (propertyCounter !== 5) {
  8016.               console.log('Error in prerequest for showContextMenu', propertyCounter);
  8017.               return;
  8018.             }
  8019.  
  8020.             pm1.assignLock(targetCnt, p1Timeout);
  8021.  
  8022.           }
  8023.  
  8024.  
  8025.  
  8026.  
  8027.  
  8028.  
  8029.         }, true);
  8030.  
  8031.  
  8032.       }
  8033.  
  8034.  
  8035.  
  8036.       /*
  8037.  
  8038.       const w=new Set(); for(const a of document.getElementsByTagName('*')) if(a.showContextMenu && a.showContextMenu_) w.add(a.is||''); console.log([...w.keys()])
  8039.  
  8040.       */
  8041.  
  8042.       whenDefinedMultiple([
  8043.         "yt-live-chat-ticker-sponsor-item-renderer",
  8044.         "yt-live-chat-banner-header-renderer",
  8045.         "yt-live-chat-text-message-renderer",
  8046.         "ytd-sponsorships-live-chat-gift-purchase-announcement-renderer",
  8047.         "ytd-sponsorships-live-chat-header-renderer",
  8048.         "ytd-sponsorships-live-chat-gift-redemption-announcement-renderer",
  8049.  
  8050.         "yt-live-chat-paid-sticker-renderer",
  8051.         "yt-live-chat-viewer-engagement-message-renderer",
  8052.         "yt-live-chat-paid-message-renderer"
  8053.  
  8054.  
  8055.  
  8056.  
  8057.       ]).then(sTags => {
  8058.  
  8059.         mightFirstCheckOnYtInit();
  8060.         groupCollapsed("YouTube Super Fast Chat", " | fixShowContextMenu");
  8061.         console.log("[Begin]");
  8062.  
  8063.  
  8064.         const __showContextMenu_mutex__ = new Mutex();
  8065.         let __showContextMenu_mutex_unlock__ = null;
  8066.         let lastShowMenuTarget = null;
  8067.  
  8068.  
  8069.  
  8070.  
  8071.         const wm37 = new WeakMap();
  8072.  
  8073.         const dProto = {
  8074.  
  8075.  
  8076.           // CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN
  8077.  
  8078.           __cacheResolvedEndpointData__: (endpoint, a, doDeepCopy) => {
  8079.             if (a) {
  8080.               if (doDeepCopy) a = deepCopy(a);
  8081.               wm37.set(endpoint, a);
  8082.             } else {
  8083.               wm37.remove(endpoint);
  8084.             }
  8085.           },
  8086.           __getCachedEndpointData__: function (endpoint) {
  8087.             endpoint = endpoint || (this.data || 0).contextMenuEndpoint || 0;
  8088.             if (endpoint) return wm37.get(endpoint);
  8089.             return null;
  8090.           },
  8091.           /** @type {(resolvedEndpoint: any) => void 0} */
  8092.           __showCachedContextMenu__: function (resolvedEndpoint) { // non-null
  8093.  
  8094.             resolvedEndpoint = deepCopy(resolvedEndpoint);
  8095.             // let b = deepCopy(resolvedEndpoint, ['trackingParams', 'clickTrackingParams'])
  8096.             Promise.resolve(resolvedEndpoint).then(() => {
  8097.               this.__showContextMenu_skip_cacheResolvedEndpointData__ = 1;
  8098.               this.showContextMenu_(resolvedEndpoint);
  8099.               this.__showContextMenu_skip_cacheResolvedEndpointData__ = 0;
  8100.             });
  8101.  
  8102.  
  8103.           },
  8104.  
  8105.  
  8106.  
  8107.           showContextMenuForCacheReopen: function (a) {
  8108.             if (!this.__showContextMenu_forceNativeRequest__) {
  8109.               const endpoint = (this.data || 0).contextMenuEndpoint || 0;
  8110.               if (endpoint) {
  8111.                 const resolvedEndpoint = this.__getCachedEndpointData__(endpoint);
  8112.                 if (resolvedEndpoint) {
  8113.                   this.__showCachedContextMenu__(resolvedEndpoint);
  8114.                   a && a.stopPropagation()
  8115.                   return;
  8116.                 }
  8117.               }
  8118.             }
  8119.             return this.showContextMenu37(a);
  8120.           },
  8121.  
  8122.           showContextMenuForCacheReopen_: function (a) {
  8123.             if (!this.__showContextMenu_skip_cacheResolvedEndpointData__) {
  8124.               const endpoint = (this.data || 0).contextMenuEndpoint || 0;
  8125.               if (endpoint) {
  8126.                 const f = this.__cacheResolvedEndpointData__;
  8127.                 if (typeof f === 'function') f(endpoint, a, true);
  8128.               }
  8129.             }
  8130.             return this.showContextMenu37_(a);
  8131.           },
  8132.  
  8133.           // ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU
  8134.  
  8135.           showContextMenuWithDisableScroll: function (a) {
  8136.  
  8137.             const endpoint = (this.data || 0).contextMenuEndpoint || 0;
  8138.             if (endpoint && typeof this.is === 'string' && this.menuVisible === false && this.menuOpen === false) {
  8139.  
  8140.               const parentComponent = this.parentComponent;
  8141.               if (parentComponent && parentComponent.is === 'yt-live-chat-item-list-renderer' && parentComponent.contextMenuOpen === false && parentComponent.allowScroll === true) {
  8142.                 parentComponent.allowScroll = false;
  8143.               }
  8144.             }
  8145.  
  8146.             return this.showContextMenu48.apply(this, arguments);
  8147.  
  8148.           },
  8149.  
  8150.           // ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU
  8151.  
  8152.           __showContextMenu_mutex_unlock_isEmpty__: () => {
  8153.             return __showContextMenu_mutex_unlock__ === null;
  8154.           },
  8155.  
  8156.           __showContextMenu_assign_lock__: function (p) {
  8157.  
  8158.             const mutex = __showContextMenu_mutex__;
  8159.  
  8160.             mutex.lockWith(unlock => {
  8161.               p.then(unlock);
  8162.             });
  8163.  
  8164.           },
  8165.  
  8166.           showContextMenuWithMutex: function (a) {
  8167.             lastShowMenuTarget = this;
  8168.  
  8169.             if (this.__showContextMenu_sync_mode_request__) {
  8170.  
  8171.               return this.showContextMenu47(a);
  8172.             } else {
  8173.  
  8174.               const mutex = __showContextMenu_mutex__;
  8175.  
  8176.               mutex.lockWith(unlock => {
  8177.                 if (lastShowMenuTarget !== this) {
  8178.                   unlock();
  8179.                   return;
  8180.                 }
  8181.  
  8182.                 setTimeout(unlock, 800); // in case network failure
  8183.                 __showContextMenu_mutex_unlock__ = unlock;
  8184.                 try {
  8185.                   this.showContextMenu47(a);
  8186.                 } catch (e) {
  8187.                   console.warn(e);
  8188.                   unlock(); // in case function script error
  8189.                 }
  8190.  
  8191.               });
  8192.  
  8193.             }
  8194.  
  8195.  
  8196.           },
  8197.  
  8198.           showContextMenuWithMutex_: function (a) {
  8199.  
  8200.             if (__showContextMenu_mutex_unlock__ && this === lastShowMenuTarget) {
  8201.               __showContextMenu_mutex_unlock__();
  8202.               __showContextMenu_mutex_unlock__ = null;
  8203.             }
  8204.             return this.showContextMenu47_(a);
  8205.  
  8206.           }
  8207.  
  8208.         }
  8209.  
  8210.         for (const tag of sTags) { // ##tag##
  8211.  
  8212.  
  8213.  
  8214.           (() => {
  8215.  
  8216.             const dummy = document.createElement(tag);
  8217.  
  8218.             const cProto = getProto(dummy);
  8219.             if (!cProto || !cProto.attached) {
  8220.               console.warn(`proto.attached for ${tag} is unavailable.`);
  8221.               return;
  8222.             }
  8223.  
  8224.  
  8225.  
  8226.  
  8227.             if (CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN && typeof cProto.showContextMenu === 'function' && typeof cProto.showContextMenu_ === 'function' && !cProto.showContextMenu37 && !cProto.showContextMenu37_ && cProto.showContextMenu.length === 1 && cProto.showContextMenu_.length === 1) {
  8228.  
  8229.               cProto.showContextMenu37_ = cProto.showContextMenu_;
  8230.               cProto.showContextMenu37 = cProto.showContextMenu;
  8231.  
  8232.               cProto.__showContextMenu_forceNativeRequest__ = 0;
  8233.               cProto.__cacheResolvedEndpointData__ = dProto.__cacheResolvedEndpointData__
  8234.               cProto.__getCachedEndpointData__ = dProto.__getCachedEndpointData__
  8235.               cProto.__showCachedContextMenu__ = dProto.__showCachedContextMenu__
  8236.  
  8237.               cProto.showContextMenu = dProto.showContextMenuForCacheReopen;
  8238.  
  8239.               cProto.showContextMenu_ = dProto.showContextMenuForCacheReopen_;
  8240.  
  8241.  
  8242.               console.log("CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN - OK", tag);
  8243.  
  8244.  
  8245.  
  8246.             } else {
  8247.  
  8248.               console.log("CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN - NG", tag);
  8249.  
  8250.             }
  8251.  
  8252.  
  8253.  
  8254.             if (ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU && typeof cProto.showContextMenu === 'function' && typeof cProto.showContextMenu_ === 'function' && !cProto.showContextMenu48 && !cProto.showContextMenu48_ && cProto.showContextMenu.length === 1 && cProto.showContextMenu_.length === 1) {
  8255.  
  8256.  
  8257.               cProto.showContextMenu48 = cProto.showContextMenu;
  8258.  
  8259.  
  8260.               cProto.showContextMenu = dProto.showContextMenuWithDisableScroll;
  8261.  
  8262.  
  8263.  
  8264.               console.log("ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU - OK", tag);
  8265.  
  8266.  
  8267.  
  8268.             } else {
  8269.  
  8270.               console.log("ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU - NG", tag);
  8271.  
  8272.             }
  8273.  
  8274.  
  8275.  
  8276.  
  8277.  
  8278.             if (ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU && typeof cProto.showContextMenu === 'function' && typeof cProto.showContextMenu_ === 'function' && !cProto.showContextMenu47 && !cProto.showContextMenu47_ && cProto.showContextMenu.length === 1 && cProto.showContextMenu_.length === 1) {
  8279.  
  8280.               cProto.showContextMenu47_ = cProto.showContextMenu_;
  8281.               cProto.showContextMenu47 = cProto.showContextMenu;
  8282.  
  8283.               cProto.__showContextMenu_mutex_unlock_isEmpty__ = dProto.__showContextMenu_mutex_unlock_isEmpty__;
  8284.               cProto.__showContextMenu_assign_lock__ = dProto.__showContextMenu_assign_lock__;
  8285.               cProto.showContextMenu = dProto.showContextMenuWithMutex;
  8286.               cProto.showContextMenu_ = dProto.showContextMenuWithMutex_;
  8287.  
  8288.               console.log("ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU - OK", tag);
  8289.  
  8290.  
  8291.  
  8292.             } else {
  8293.  
  8294.               console.log("ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU - NG", tag);
  8295.  
  8296.             }
  8297.  
  8298.  
  8299.  
  8300.  
  8301.           })();
  8302.  
  8303.         }
  8304.  
  8305.  
  8306.  
  8307.         console.log("[End]");
  8308.  
  8309.         console.groupEnd();
  8310.  
  8311.       }).catch(console.warn);
  8312.  
  8313.  
  8314.  
  8315.       customElements.whenDefined('tp-yt-iron-dropdown').then(() => {
  8316.  
  8317.         mightFirstCheckOnYtInit();
  8318.         groupCollapsed("YouTube Super Fast Chat", " | tp-yt-iron-dropdown hacks");
  8319.         console.log("[Begin]");
  8320.         (() => {
  8321.  
  8322.           const tag = "tp-yt-iron-dropdown";
  8323.           const dummy = document.createElement(tag);
  8324.  
  8325.           const cProto = getProto(dummy);
  8326.           if (!cProto || !cProto.attached) {
  8327.             console.warn(`proto.attached for ${tag} is unavailable.`);
  8328.             return;
  8329.           }
  8330.  
  8331.  
  8332.           if (USE_VANILLA_DEREF && typeof cProto.__deraf === 'function' && cProto.__deraf.length === 2 && !cProto.__deraf34 && fnIntegrity(cProto.__deraf) === '2.42.24') {
  8333.             cProto.__deraf_hn__ = function (sId, fn) {
  8334.               const rhKey = `_rafHandler_${sId}`;
  8335.               const m = this[rhKey] || (this[rhKey] = new WeakMap());
  8336.               if (m.has(fn)) return m.get(fn);
  8337.               const resFn = () => {
  8338.                 this.__rafs[sId] = null;
  8339.                 fn.call(this)
  8340.               };
  8341.               m.set(fn, resFn);
  8342.               m.set(resFn, resFn);
  8343.               return resFn;
  8344.             };
  8345.             cProto.__deraf34 = cProto.__deraf;
  8346.             cProto.__deraf = function (a, b) { // sId, fn
  8347.               let c = this.__rafs;
  8348.               null !== c[a] && cancelAnimationFrame(c[a]);
  8349.               c[a] = requestAnimationFrame(this.__deraf_hn__(a, b));
  8350.             };
  8351.             console.log("USE_VANILLA_DEREF - OK");
  8352.           } else {
  8353.             console.log("USE_VANILLA_DEREF - NG");
  8354.           }
  8355.  
  8356.           if (FIX_DROPDOWN_DERAF && typeof cProto.__deraf === 'function' && cProto.__deraf.length === 2 && !cProto.__deraf66) {
  8357.             cProto.__deraf66 = cProto.__deraf;
  8358.             cProto.__deraf = function (sId, fn) {
  8359.               if (this.__byPassRAF__) {
  8360.                 Promise.resolve().then(() => {
  8361.                   fn.call(this);
  8362.                 });
  8363.               }
  8364.               let r = this.__deraf66.apply(this, arguments);
  8365.               return r;
  8366.             }
  8367.             console.log("FIX_DROPDOWN_DERAF - OK");
  8368.           } else {
  8369.             console.log("FIX_DROPDOWN_DERAF - NG");
  8370.           }
  8371.  
  8372.  
  8373.           if (BOOST_MENU_OPENCHANGED_RENDERING && typeof cProto.__openedChanged === 'function' && !cProto.__mtChanged__ && fnIntegrity(cProto.__openedChanged) === '0.46.20') {
  8374.  
  8375.             let lastClose = null;
  8376.             let lastOpen = null;
  8377.             let cid = 0;
  8378.  
  8379.             cProto.__mtChanged__ = function (b) {
  8380.  
  8381.               Promise.resolve().then(() => {
  8382.                 this._applyFocus();
  8383.               }).then(() => {
  8384.                 b ? this._renderOpened() : this._renderClosed();
  8385.               }).catch(console.warn);
  8386.  
  8387.             };
  8388.  
  8389.             const __moChanged__ = () => {
  8390.               if (!cid) return;
  8391.               // console.log(553, !!lastOpen, !!lastClose);
  8392.               cid = 0;
  8393.               if (lastOpen && !lastClose && lastOpen.isAttached) {
  8394.                 lastOpen.__mtChanged__(1)
  8395.               } else if (lastClose && !lastOpen && lastClose.isAttached) {
  8396.                 lastClose.__mtChanged__(0);
  8397.               }
  8398.               lastOpen = null;
  8399.               lastClose = null;
  8400.             };
  8401.  
  8402.  
  8403.             if (typeof cProto._openedChanged === 'function' && !cProto._openedChanged66) {
  8404.               cProto._openedChanged66 = cProto._openedChanged;
  8405.               cProto._openedChanged = function () {
  8406.                 // this.__byPassRAF__ = !lastOpen ? true : false; // or just true?
  8407.                 this.__byPassRAF__ = true;
  8408.                 let r = this._openedChanged66.apply(this, arguments);
  8409.                 this.__byPassRAF__ = false;
  8410.                 return r;
  8411.               }
  8412.             }
  8413.  
  8414.             const pSetGet = (key, pdThis, pdBase) => {
  8415.               // note: this is not really a standard way for the getOwnPropertyDescriptors; but it is sufficient to make the job done
  8416.               return {
  8417.                 get: (pdThis[key] || 0).get || (pdBase[key] || 0).get,
  8418.                 set: (pdThis[key] || 0).set || (pdBase[key] || 0).set
  8419.               };
  8420.             };
  8421.  
  8422.             cProto.__modifiedMenuPropsFn__ = function () {
  8423.               const pdThis = Object.getOwnPropertyDescriptors(this.constructor.prototype)
  8424.               const pdBase = Object.getOwnPropertyDescriptors(this)
  8425.  
  8426.               const pdAutoFitOnAttach = pSetGet('autoFitOnAttach', pdThis, pdBase);
  8427.               const pdExpandSizingTargetForScrollbars = pSetGet('expandSizingTargetForScrollbars', pdThis, pdBase);
  8428.               const pdAllowOutsideScroll = pSetGet('allowOutsideScroll', pdThis, pdBase);
  8429.  
  8430.               if (pdAutoFitOnAttach.get || pdAutoFitOnAttach.set) {
  8431.                 console.warn('there is setter/getter for autoFitOnAttach');
  8432.                 return;
  8433.               }
  8434.               if (pdExpandSizingTargetForScrollbars.get || pdExpandSizingTargetForScrollbars.set) {
  8435.                 console.warn('there is setter/getter for expandSizingTargetForScrollbars');
  8436.                 return;
  8437.               }
  8438.               if (!pdAllowOutsideScroll.get || !pdAllowOutsideScroll.set) {
  8439.                 console.warn('there is NO setter-getter for allowOutsideScroll');
  8440.                 return;
  8441.               }
  8442.  
  8443.               let { autoFitOnAttach, expandSizingTargetForScrollbars, allowOutsideScroll } = this;
  8444.  
  8445.               this.__AllowOutsideScrollPD__ = pdAllowOutsideScroll;
  8446.  
  8447.               const fitEnable = CHAT_MENU_REFIT_ALONG_SCROLLING === 2;
  8448.  
  8449.               Object.defineProperties(this, {
  8450.                 autoFitOnAttach: {
  8451.                   get() {
  8452.                     if (fitEnable && this._modifiedMenuPropOn062__) return true;
  8453.                     return autoFitOnAttach;
  8454.                   },
  8455.                   set(nv) {
  8456.                     autoFitOnAttach = nv;
  8457.                     return true;
  8458.                   },
  8459.                   enumerable: true,
  8460.                   configurable: true
  8461.                 }, expandSizingTargetForScrollbars: {
  8462.                   get() {
  8463.                     if (fitEnable && this._modifiedMenuPropOn062__) return true;
  8464.                     return expandSizingTargetForScrollbars;
  8465.                   },
  8466.                   set(nv) {
  8467.                     expandSizingTargetForScrollbars = nv;
  8468.                     return true;
  8469.                   },
  8470.                   enumerable: true,
  8471.                   configurable: true
  8472.                 }, allowOutsideScroll: {
  8473.                   get() {
  8474.                     if (this._modifiedMenuPropOn062__) return true;
  8475.                     return allowOutsideScroll;
  8476.                   },
  8477.                   set(nv) {
  8478.                     allowOutsideScroll = nv;
  8479.                     this.__AllowOutsideScrollPD__.set.call(this, nv);
  8480.                     return true;
  8481.                   },
  8482.                   enumerable: true,
  8483.                   configurable: true
  8484.                 }
  8485.               })
  8486.             };
  8487.  
  8488.             /*
  8489.                // ***** position() to be changed. *****
  8490.               tp-yt-iron-dropdown[class], tp-yt-iron-dropdown[class] #contentWrapper, tp-yt-iron-dropdown[class] ytd-menu-popup-renderer[class] {
  8491.  
  8492.                   overflow: visible !important;
  8493.                   min-width: max-content !important;
  8494.                   max-width: max-content !important;
  8495.                   max-height: max-content !important;
  8496.                   min-height: max-content !important;
  8497.                   white-space: nowrap;
  8498.               }
  8499.  
  8500.             */
  8501.             if (FIX_MENU_POSITION_N_SIZING_ON_SHOWN && typeof cProto.position === 'function' && !cProto.position34 && typeof cProto.refit === 'function') {
  8502.  
  8503.               let m34 = 0;
  8504.               cProto.__refitByPosition__ = function () {
  8505.                 m34++;
  8506.                 if (m34 <= 0) m34 = 0;
  8507.                 if (m34 !== 1) return;
  8508.                 const hostElement = this.hostElement || this;
  8509.                 if (document.visibilityState === 'visible') {
  8510.                   const sizingTarget = this.sizingTarget;
  8511.                   if (!sizingTarget) {
  8512.                     m34 = 0;
  8513.                     return;
  8514.                   }
  8515.  
  8516.                   /*
  8517.                   let useVisibilityCollapse = true;
  8518.                   if (HTMLElement.prototype.querySelector.call(sizingTarget, 'yt-icon:empty')) {
  8519.                     useVisibilityCollapse = false;
  8520.                   }
  8521.  
  8522.                   if (useVisibilityCollapse) {
  8523.                     hostElement.style.visibility = 'collapse';
  8524.                     sizingTarget.style.visibility = 'collapse';
  8525.                   } else {
  8526.                     hostElement.setAttribute('rNgzQ', '');
  8527.                     sizingTarget.setAttribute('rNgzQ', '');
  8528.                   }
  8529.                   */
  8530.                   hostElement.setAttribute('rNgzQ', '');
  8531.                   sizingTarget.setAttribute('rNgzQ', '');
  8532.  
  8533.                   const gn = () => {
  8534.                     /*
  8535.                     if (useVisibilityCollapse) {
  8536.                       hostElement.style.visibility = '';
  8537.                       sizingTarget.style.visibility = '';
  8538.                     } else {
  8539.                       hostElement.removeAttribute('rNgzQ');
  8540.                       sizingTarget.removeAttribute('rNgzQ');
  8541.                     }
  8542.                     */
  8543.                     hostElement.removeAttribute('rNgzQ');
  8544.                     sizingTarget.removeAttribute('rNgzQ');
  8545.                   }
  8546.  
  8547.                   const an = async () => {
  8548.                     while (m34 >= 1) {
  8549.                       await renderReadyPn(sizingTarget);
  8550.                       if (this.opened && this.isAttached && sizingTarget.isConnected === true && sizingTarget === this.sizingTarget) {
  8551.                         if (sizingTarget.matches('ytd-menu-popup-renderer[slot="dropdown-content"].yt-live-chat-app')) this.refit();
  8552.                       }
  8553.                       m34--;
  8554.                     }
  8555.                     m34 = 0;
  8556.                     Promise.resolve().then(gn);
  8557.                   }
  8558.                   setTimeout(an, 4); // wait those resizing function calls
  8559.  
  8560.  
  8561.                 } else {
  8562.                   m34 = 0;
  8563.                 }
  8564.               }
  8565.               cProto.position34 = cProto.position
  8566.               cProto.position = function () {
  8567.                 if (this._positionInitialize_) {
  8568.                   this._positionInitialize_ = 0;
  8569.                   this.__refitByPosition__();
  8570.                 }
  8571.                 let r = cProto.position34.apply(this, arguments);
  8572.                 return r;
  8573.               }
  8574.               console.log("FIX_MENU_POSITION_ON_SHOWN - OK");
  8575.  
  8576.             } else {
  8577.  
  8578.               console.log("FIX_MENU_POSITION_ON_SHOWN - NG");
  8579.  
  8580.             }
  8581.  
  8582.  
  8583.  
  8584.             cProto.__openedChanged = function () {
  8585.               this._positionInitialize_ = 1;
  8586.               // this.removeAttribute('horizontal-align')
  8587.               // this.removeAttribute('vertical-align')
  8588.               if (typeof this.__menuTypeCheck__ !== 'boolean') {
  8589.                 this.__menuTypeCheck__ = true;
  8590.                 if (CHAT_MENU_SCROLL_UNLOCKING) {
  8591.                   this._modifiedMenuPropOn062__ = false;
  8592.                   // console.log(513, this.positionTarget && this.positionTarget.classList.contains('yt-live-chat-text-message-renderer'))
  8593.                   // this.autoFitOnAttach = true;
  8594.                   // this.expandSizingTargetForScrollbars = true;
  8595.                   // this.allowOutsideScroll = true;
  8596.                   // console.log(519,Object.getOwnPropertyDescriptors(this.constructor.prototype))
  8597.                   this.__modifiedMenuPropsFn__();
  8598.                   // this.constrain= function(){}
  8599.                   // this.position= function(){}
  8600.  
  8601.                   // this.autoFitOnAttach = true;
  8602.                   // this.expandSizingTargetForScrollbars = true;
  8603.                   // this.allowOutsideScroll = true;
  8604.                 }
  8605.               }
  8606.               if (CHAT_MENU_SCROLL_UNLOCKING && this.opened) {
  8607.                 let newValue = null;
  8608.                 const positionTarget = this.positionTarget;
  8609.                 if (positionTarget && positionTarget.classList.contains('yt-live-chat-text-message-renderer')) {
  8610.                   if (this._modifiedMenuPropOn062__ === false) {
  8611.                     newValue = true;
  8612.                   }
  8613.                 } else if (this._modifiedMenuPropOn062__ === true) {
  8614.                   newValue = false;
  8615.                 }
  8616.                 if (newValue !== null) {
  8617.                   const beforeAllowOutsideScroll = this.allowOutsideScroll;
  8618.                   this._modifiedMenuPropOn062__ = newValue;
  8619.                   const afterAllowOutsideScroll = this.allowOutsideScroll;
  8620.                   if (beforeAllowOutsideScroll !== afterAllowOutsideScroll) this.__AllowOutsideScrollPD__.set.call(this, afterAllowOutsideScroll);
  8621.                 }
  8622.               }
  8623.  
  8624.               if (this.opened) {
  8625.  
  8626.                 Promise.resolve().then(() => {
  8627.  
  8628.                   this._prepareRenderOpened();
  8629.                 }).then(() => {
  8630.                   this._manager.addOverlay(this);
  8631.                   if (this._manager._overlays.length === 1) {
  8632.                     lastOpen = this;
  8633.                     lastClose = null;
  8634.                   } else {
  8635.                     return 1;
  8636.                   }
  8637.                   // if (cid) {
  8638.                   //   clearTimeout(cid);
  8639.                   //   cid = -1;
  8640.                   //   this.__moChanged__();
  8641.                   //   cid = 0;
  8642.                   // } else {
  8643.                   //   cid = -1;
  8644.                   //   this.__moChanged__();
  8645.                   //   cid = 0;
  8646.                   // }
  8647.                   // cid = cid > 0 ? clearTimeout(cid) : 0;
  8648.                   // console.log(580, this.positionTarget && this.positionTarget.classList.contains('yt-live-chat-text-message-renderer'))
  8649.                   // cid = cid || setTimeout(__moChanged__, delay1);
  8650.                   cid = cid || requestAnimationFrame(__moChanged__);
  8651.                 }).then((r) => {
  8652.  
  8653.                   if (r) this.__mtChanged__(1);
  8654.                 }).catch(console.warn);
  8655.  
  8656.               } else {
  8657.                 Promise.resolve().then(() => {
  8658.                   this._manager.removeOverlay(this);
  8659.                   if (this._manager._overlays.length === 0) {
  8660.                     lastClose = this;
  8661.                     lastOpen = null;
  8662.                   } else {
  8663.                     return 1;
  8664.                   }
  8665.                   // cid = cid > 0 ? clearTimeout(cid) : 0;
  8666.                   // console.log(581, this.positionTarget && this.positionTarget.classList.contains('yt-live-chat-text-message-renderer'))
  8667.                   // cid = cid || setTimeout(__moChanged__, delay1);
  8668.                   cid = cid || requestAnimationFrame(__moChanged__);
  8669.                 }).then((r) => {
  8670.                   if (r) this.__mtChanged__(0);
  8671.                 }).catch(console.warn);
  8672.  
  8673.               }
  8674.  
  8675.             }
  8676.             console.log("BOOST_MENU_OPENCHANGED_RENDERING - OK");
  8677.  
  8678.           } else {
  8679.  
  8680.             assertor(() => fnIntegrity(cProto.__openedChanged, '0.46.20'));
  8681.             console.log("FIX_MENU_REOPEN_RENDER_PERFORMANC_1 - NG");
  8682.  
  8683.           }
  8684.  
  8685.  
  8686.           if (FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK && typeof cProto.__openedChanged === 'function' && !cProto.__openedChanged82) {
  8687.  
  8688.             cProto.__openedChanged82 = cProto.__openedChanged;
  8689.  
  8690.  
  8691.             cProto.__openedChanged = function () {
  8692.  
  8693.               // currentMenuPivotWR = null;
  8694.               // console.log(1480, '__openedChanged.A', this.positionTarget)
  8695.  
  8696.  
  8697.  
  8698.               // if (this.opened && this.positionTarget) {
  8699.  
  8700.               //   const positionTarget = this.positionTarget;
  8701.               //   console.log(1480, '__openedChanged.B', positionTarget)
  8702.               //   currentMenuPivotWR = mWeakRef(positionTarget);
  8703.  
  8704.               // }
  8705.  
  8706.               const positionTarget = this.positionTarget;
  8707.               currentMenuPivotWR = positionTarget ? mWeakRef(positionTarget) : null;
  8708.               return this.__openedChanged82.apply(this, arguments);
  8709.             }
  8710.           }
  8711.  
  8712.  
  8713.           // if(FIX_MENU_CAPTURE_SCROLL && typeof cProto.__onCaptureScroll === 'function' && !cProto.__onCaptureScroll66){
  8714.  
  8715.           //   cProto.__onCaptureScroll66 = cProto.__onCaptureScroll;
  8716.  
  8717.           //   cProto.__onCaptureScroll = function(a){
  8718.  
  8719.           //     const q = true;
  8720.           //     if(this.scrollAction === 'lock'  && q && this.opened){
  8721.  
  8722.           //       // console.log(9107, this.scrollAction, this.__isAnimating, this.opened, a); // lock; __isAnimating = false
  8723.           //       async function af() {
  8724.           //         this.__isAnimating && this._finishRenderOpened();
  8725.           //         if (!this.opened) return;
  8726.           //         this.__restoreScrollPosition();
  8727.           //         await new Promise(r => requestAnimationFrame(r));
  8728.           //         if (!this.opened) return;
  8729.           //         this.opened && this.__isAnimating && this._finishRenderOpened();
  8730.           //         if (!this.opened) return;
  8731.           //         this.__restoreScrollPosition();
  8732.           //         await new Promise(r => requestAnimationFrame(r));
  8733.           //         if (!this.opened) return;
  8734.           //         this.opened && this.__isAnimating && this._finishRenderOpened();
  8735.           //         if (!this.opened) return;
  8736.           //         this.opened && !this.__isAnimating && this.refit();
  8737.           //       }
  8738.           //       Promise.resolve().then(af);
  8739.  
  8740.           //        return cProto.__onCaptureScroll66.apply(this, arguments);
  8741.           //     }else{
  8742.  
  8743.           //       // console.log(9102, this.scrollAction, this.__isAnimating, this.opened, a); // lock
  8744.  
  8745.           //       return cProto.__onCaptureScroll66.apply(this, arguments);
  8746.           //     }
  8747.           //   }
  8748.           //   console.log("FIX_MENU_CAPTURE_SCROLL - OK");
  8749.           // }else{
  8750.           //   console.log("FIX_MENU_CAPTURE_SCROLL - NG");
  8751.  
  8752.           // }
  8753.  
  8754.  
  8755.         })();
  8756.  
  8757.         console.log("[End]");
  8758.  
  8759.         console.groupEnd();
  8760.  
  8761.       }).catch(console.warn);
  8762.  
  8763.  
  8764.  
  8765.       FIX_ToggleRenderPolymerControllerExtractionBug && customElements.whenDefined('yt-live-chat-toggle-renderer').then(() => {
  8766.  
  8767.         mightFirstCheckOnYtInit();
  8768.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-toggle-renderer hacks");
  8769.         console.log("[Begin]");
  8770.         (() => {
  8771.  
  8772.           const tag = "yt-live-chat-toggle-renderer";
  8773.           const dummy = document.createElement(tag);
  8774.  
  8775.           const cProto = getProto(dummy);
  8776.           if (!cProto || !cProto.attached) {
  8777.             console.warn(`proto.attached for ${tag} is unavailable.`);
  8778.             return;
  8779.           }
  8780.  
  8781.           // cProto.attached718 = cProto.attached;
  8782.  
  8783.  
  8784.           // cProto.attached = function () {
  8785.           //   const dataDP = Object.getOwnPropertyDescriptor(this, 'data');
  8786.           //   if (dataDP) return cProto.attached718();
  8787.           //   let f = {};
  8788.           //   let e = f;
  8789.           //   Object.defineProperty(this, 'data', {
  8790.           //     get() {
  8791.           //       return e;
  8792.           //     },
  8793.           //     set(nv) {
  8794.           //       e = nv;
  8795.           //       return true;
  8796.           //     },
  8797.           //     enumerable: false,
  8798.           //     configurable: true
  8799.           //   });
  8800.           //   let err = null;
  8801.           //   let r;
  8802.           //   try {
  8803.           //     r = cProto.attached718();
  8804.           //   } catch (e2) {
  8805.           //     err = e2;
  8806.           //   }
  8807.           //   delete this.data;
  8808.           //   if (e !== f) this.data = e;
  8809.           //   if (err) throw err;
  8810.           //   return r;
  8811.           // }
  8812.  
  8813.           // console.log(2989, cProto.attached);
  8814.  
  8815.         })();
  8816.  
  8817.         console.log("[End]");
  8818.         console.groupEnd();
  8819.  
  8820.       });
  8821.  
  8822.  
  8823.  
  8824.  
  8825.       /*
  8826.  
  8827.  
  8828.  
  8829.  
  8830.  
  8831.           var FU = function() {
  8832.               var a = this;
  8833.               this.nextHandle_ = 1;
  8834.               this.clients_ = {};
  8835.               this.JSC$10323_callbacks_ = {};
  8836.               this.unsubscribeAsyncHandles_ = {};
  8837.               this.subscribe = vl(function(b, c, d) {
  8838.                   var e = Geb(b);
  8839.                   if (e in a.clients_)
  8840.                       e in a.unsubscribeAsyncHandles_ && Jq.cancel(a.unsubscribeAsyncHandles_[e]);
  8841.                   else {
  8842.                       a: {
  8843.                           var h = Geb(b), l;
  8844.                           for (l in a.unsubscribeAsyncHandles_) {
  8845.                               var m = a.clients_[l];
  8846.                               if (m instanceof KO) {
  8847.                                   delete a.clients_[l];
  8848.                                   delete a.JSC$10323_callbacks_[l];
  8849.                                   Jq.cancel(a.unsubscribeAsyncHandles_[l]);
  8850.                                   delete a.unsubscribeAsyncHandles_[l];
  8851.                                   i6a(m);
  8852.                                   m.objectId_ = new FQa(h);
  8853.                                   m.register();
  8854.                                   d = m;
  8855.                                   break a
  8856.                               }
  8857.                           }
  8858.                           d.objectSource = b.invalidationId.objectSource;
  8859.                           d.objectId = h;
  8860.                           if (b = b.webAuthConfigurationData)
  8861.                               b.multiUserSessionIndex && (d.sessionIndex = parseInt(b.multiUserSessionIndex, 10)),
  8862.                               b.pageId && (d.pageId = b.pageId);
  8863.                           d = new KO(d,a.handleInvalidationData_.bind(a));
  8864.                           d.register()
  8865.                       }
  8866.                       a.clients_[e] = d;
  8867.                       a.JSC$10323_callbacks_[e] = {}
  8868.                   }
  8869.                   d = a.nextHandle_++;
  8870.                   a.JSC$10323_callbacks_[e][d] = c;
  8871.                   return d
  8872.               })
  8873.           };
  8874.           FU.prototype.unsubscribe = function(a, b) {
  8875.               var c = Geb(a);
  8876.               if (c in this.JSC$10323_callbacks_ && (delete this.JSC$10323_callbacks_[c][b],
  8877.               !this.JSC$10323_callbacks_[c].length)) {
  8878.                   var d = this.clients_[c];
  8879.                   b = Jq.run(function() {
  8880.                       ei(d);
  8881.                       delete this.clients_[c];
  8882.                       delete this.unsubscribeAsyncHandles_[c]
  8883.                   }
  8884.                   .bind(this));
  8885.                   this.unsubscribeAsyncHandles_[c] = b
  8886.               }
  8887.           }
  8888.           ;
  8889.  
  8890.  
  8891.       */
  8892.  
  8893.  
  8894.  
  8895.  
  8896.       const onManagerFound = (dummyManager) => {
  8897.         if (!dummyManager || typeof dummyManager !== 'object') return;
  8898.  
  8899.         const mgrProto = dummyManager.constructor.prototype;
  8900.  
  8901.         let keyCallbackStore = '';
  8902.         for (const [key, v] of Object.entries(dummyManager)) {
  8903.           if (key.includes('_callbacks_')) keyCallbackStore = key;
  8904.         }
  8905.  
  8906.         if (!keyCallbackStore || typeof mgrProto.unsubscribe !== 'function' || mgrProto.unsubscribe.length !== 2) return;
  8907.  
  8908.         if (mgrProto.unsubscribe16) return;
  8909.  
  8910.         mgrProto.unsubscribe16 = mgrProto.unsubscribe;
  8911.  
  8912.         groupCollapsed("YouTube Super Fast Chat", " | *live-chat-manager* hacks");
  8913.         console.log("[Begin]");
  8914.  
  8915.  
  8916.         // const isEmptyObject = (a) => Object.keys(a).length === 0;
  8917.         const isEmptyObject = ((obj) => (firstKey(obj) === null));
  8918.  
  8919.         const idMapper = new Map();
  8920.  
  8921.         const convertId = function (objectId) {
  8922.           if (!objectId || typeof objectId !== 'string') return null;
  8923.  
  8924.           let result = idMapper.get(objectId)
  8925.           if (result) return result;
  8926.           result = atob(objectId.replace(/-/g, "+").replace(/_/g, "/"));
  8927.           idMapper.set(objectId, result)
  8928.           return result;
  8929.         }
  8930.  
  8931.  
  8932.         const rafHandleHolder = [];
  8933.  
  8934.         let pzw = 0;
  8935.         let lza = 0;
  8936.         const rafHandlerFn = () => {
  8937.           pzw = 0;
  8938.           if (rafHandleHolder.length === 1) {
  8939.             const f = rafHandleHolder[0];
  8940.             rafHandleHolder.length = 0;
  8941.             f();
  8942.           } else if (rafHandleHolder.length > 1) {
  8943.             const arr = rafHandleHolder.slice(0);
  8944.             rafHandleHolder.length = 0;
  8945.             for (const fn of arr) fn();
  8946.           }
  8947.         };
  8948.  
  8949.  
  8950.         if (CHANGE_MANAGER_UNSUBSCRIBE) {
  8951.  
  8952.           const checkIntegrityForSubscribe = (mgr) => {
  8953.             if (mgr
  8954.               && typeof mgr.unsubscribe16 === 'function' && mgr.unsubscribe16.length === 2
  8955.               && typeof mgr.subscribe18 === 'function' && (mgr.subscribe18.length === 0 || mgr.subscribe18.length === 3)) {
  8956.  
  8957.               const ns = new Set(Object.keys(mgr));
  8958.               const ms = new Set(Object.keys(mgr.constructor.prototype));
  8959.  
  8960.               if (ns.size >= 6 && ms.size >= 4) {
  8961.                 // including 'subscribe18'
  8962.                 // 'unsubscribe16', 'subscribe19'
  8963.  
  8964.                 let r = 0;
  8965.                 for (const k of ['nextHandle_', 'clients_', keyCallbackStore, 'unsubscribeAsyncHandles_', 'subscribe', 'subscribe18']) {
  8966.                   r += ns.has(k) ? 1 : 0;
  8967.                 }
  8968.                 for (const k of ['unsubscribe', 'handleInvalidationData_', 'unsubscribe16', 'subscribe19']) {
  8969.                   r += ms.has(k) ? 1 : 0;
  8970.                 }
  8971.                 if (r === 10) {
  8972.                   const isObject = (c) => (c || 0).constructor === Object;
  8973.  
  8974.                   if (isObject(mgr['clients_']) && isObject(mgr[keyCallbackStore]) && isObject(mgr['unsubscribeAsyncHandles_'])) {
  8975.  
  8976.                     return true;
  8977.                   }
  8978.  
  8979.  
  8980.                 }
  8981.  
  8982.               }
  8983.  
  8984.  
  8985.             }
  8986.             return false;
  8987.           }
  8988.  
  8989.           mgrProto.subscribe19 = function (o, f, opts) {
  8990.  
  8991.             const ct_clients_ = this.clients_ || 0;
  8992.             const ct_handles_ = this.unsubscribeAsyncHandles_ || 0;
  8993.  
  8994.             if (this.__doCustomSubscribe__ !== true || !ct_clients_ || !ct_handles_) return this.subscribe18.apply(this, arguments);
  8995.  
  8996.             let objectId = ((o || 0).invalidationId || 0).objectId;
  8997.             if (!objectId) return this.subscribe18.apply(this, arguments);
  8998.             objectId = convertId(objectId);
  8999.  
  9000.             // console.log('subscribe', objectId, ct_clients_[objectId], arguments);
  9001.  
  9002.             if (ct_clients_[objectId]) {
  9003.               if (ct_handles_[objectId] < 0) delete ct_handles_[objectId];
  9004.             }
  9005.  
  9006.             return this.subscribe18.apply(this, arguments);
  9007.           }
  9008.  
  9009.           mgrProto.unsubscribe = function (o, d) {
  9010.             if (!this.subscribe18 && typeof this.subscribe === 'function') {
  9011.               this.subscribe18 = this.subscribe;
  9012.               this.subscribe = this.subscribe19;
  9013.               this.__doCustomSubscribe__ = checkIntegrityForSubscribe(this);
  9014.             }
  9015.             const ct_clients_ = this.clients_;
  9016.             const ct_handles_ = this.unsubscribeAsyncHandles_;
  9017.             if (this.__doCustomSubscribe__ !== true || !ct_clients_ || !ct_handles_) return this.unsubscribe16.apply(this, arguments);
  9018.  
  9019.             let objectId = ((o || 0).invalidationId || 0).objectId;
  9020.             if (!objectId) return this.unsubscribe16.apply(this, arguments);
  9021.  
  9022.             objectId = convertId(objectId);
  9023.  
  9024.  
  9025.             // console.log('unsubscribe', objectId, ct_clients_[objectId], arguments);
  9026.  
  9027.             const callbacks = this[keyCallbackStore] || 0;
  9028.             const callbackObj = callbacks[objectId] || 0;
  9029.  
  9030.  
  9031.             if (callbackObj && (delete callbackObj[d], isEmptyObject(callbackObj))) {
  9032.               const w = ct_clients_[objectId];
  9033.               --lza;
  9034.               if (lza < -1e9) lza = -1;
  9035.               const qta = lza;
  9036.               rafHandleHolder.push(() => {
  9037.                 if (qta === ct_handles_[objectId]) {
  9038.                   const o = {
  9039.                     callbacks, callbackObj,
  9040.                     client: ct_clients_[objectId],
  9041.                     handle: ct_handles_[objectId]
  9042.                   };
  9043.                   let p = 0;
  9044.                   try {
  9045.                     if (ct_clients_[objectId] === w) {
  9046.                       w && "function" === typeof w.dispose && w.dispose();
  9047.                       delete ct_clients_[objectId];
  9048.                       delete ct_handles_[objectId];
  9049.                       p = 1;
  9050.                     } else {
  9051.                       // w && "function" === typeof w.dispose && w.dispose();
  9052.                       // delete ct_clients_[objectId];
  9053.                       // delete ct_handles_[objectId];
  9054.                       p = 2;
  9055.                     }
  9056.                   } catch (e) {
  9057.                     console.warn(e);
  9058.                   }
  9059.                   console.log(`unsubscribed: ${p}`, this, o);
  9060.                 }
  9061.               });
  9062.               ct_handles_[objectId] = qta;
  9063.               if (pzw === 0) {
  9064.                 pzw = requestAnimationFrame(rafHandlerFn);
  9065.               }
  9066.             }
  9067.           }
  9068.  
  9069.  
  9070.           console.log("CHANGE_MANAGER_UNSUBSCRIBE - OK")
  9071.  
  9072.         } else {
  9073.  
  9074.           console.log("CHANGE_MANAGER_UNSUBSCRIBE - NG")
  9075.         }
  9076.  
  9077.         console.log("[End]");
  9078.  
  9079.         console.groupEnd();
  9080.  
  9081.       }
  9082.  
  9083.  
  9084.  
  9085.       /*
  9086.  
  9087.  
  9088.               a.prototype.async = function(e, h) {
  9089.                   return 0 < h ? Iq.run(e.bind(this), h) : ~Kq.run(e.bind(this))
  9090.               }
  9091.               ;
  9092.               a.prototype.cancelAsync = function(e) {
  9093.                   0 > e ? Kq.cancel(~e) : Iq.cancel(e)
  9094.               }
  9095.  
  9096.       */
  9097.  
  9098.  
  9099.       (FASTER_ICON_RENDERING && Promise.all(
  9100.         [
  9101.           customElements.whenDefined("yt-icon-shape"),
  9102.           customElements.whenDefined("yt-icon")
  9103.           //  document.createElement('icon-shape'),
  9104.         ]
  9105.       )).then(() => {
  9106.         let cq = 0;
  9107.         let dummys = [document.createElement('yt-icon-shape'), document.createElement('yt-icon')]
  9108.         for (const dummy of dummys) {
  9109.           let cProto = getProto(dummy);
  9110.           if (cProto && typeof cProto.shouldRenderIconShape === 'function' && !cProto.shouldRenderIconShape571 && cProto.shouldRenderIconShape.length === 1) {
  9111.             assertor(() => fnIntegrity(cProto.shouldRenderIconShape, '1.70.38'));
  9112.             cq++;
  9113.             cProto.shouldRenderIconShape571 = cProto.shouldRenderIconShape;
  9114.             cProto.shouldRenderIconShape = function (a) {
  9115.               if (this.isAnimatedIcon) return this.shouldRenderIconShape571(a);
  9116.               if (!this.iconType || !this.iconShapeData) return this.shouldRenderIconShape571(a);
  9117.               if (!this.iconName) return this.shouldRenderIconShape571(a);
  9118.               return false;
  9119.               // console.log(1051, this.iconType)
  9120.               // console.log(1052, this.iconShapeData)
  9121.               // console.log(1053, this.isAnimatedIcon)
  9122.             }
  9123.           }
  9124.           // if(cProto && cProto.switchTemplateAtRegistration){
  9125.           //   cProto.switchTemplateAtRegistration = false;
  9126.           // }
  9127.         }
  9128.         if (cq === 1) {
  9129.           console.log("modified shouldRenderIconShape - Y")
  9130.         } else {
  9131.           console.log("modified shouldRenderIconShape - N", cq)
  9132.         }
  9133.       });
  9134.  
  9135.       customElements.whenDefined("yt-invalidation-continuation").then(() => {
  9136.  
  9137.         let __dummyManager__ = null;
  9138.  
  9139.         mightFirstCheckOnYtInit();
  9140.         groupCollapsed("YouTube Super Fast Chat", " | yt-invalidation-continuation hacks");
  9141.         console.log("[Begin]");
  9142.         (() => {
  9143.  
  9144.           const tag = "yt-invalidation-continuation"
  9145.           const dummy = document.createElement(tag);
  9146.  
  9147.           const cProto = getProto(dummy);
  9148.           if (!cProto || !cProto.attached) {
  9149.             console.warn(`proto.attached for ${tag} is unavailable.`);
  9150.             return;
  9151.           }
  9152.  
  9153.           const dummyManager = insp(dummy).manager_ || 0;
  9154.           __dummyManager__ = dummyManager;
  9155.  
  9156.           if (CHANGE_DATA_FLUSH_ASYNC && typeof cProto.async === 'function' && !cProto.async71 && cProto.async.length === 2 && typeof cProto.cancelAsync === 'function' && !cProto.cancelAsync71 && cProto.cancelAsync.length === 1) {
  9157.  
  9158.  
  9159.             const rafHub = new RAFHub();
  9160.  
  9161.             rafHub.keepRAF = true;
  9162.             cProto.async71 = cProto.async;
  9163.             cProto.cancelAsync71 = cProto.cancelAsync;
  9164.  
  9165.             // mostly for subscription timeoutMs 10000ms
  9166.             let mcw = 1; // 1, 3, 5, ...
  9167.             let arr = new Map();
  9168.  
  9169.             let __asyncInited__ = 0;
  9170.             let __timeoutStartId__ = null;
  9171.             const __asyncInit__ = () => {
  9172.  
  9173.               if (__asyncInited__) return;
  9174.               __asyncInited__ = 1;
  9175.  
  9176.               __timeoutStartId__ = setTimeout(() => { });
  9177.               mcw = __timeoutStartId__ * 2 + 1;
  9178.  
  9179.               setInterval(() => {
  9180.  
  9181.                 if (!arr.length) return;
  9182.  
  9183.                 const p = Date.now();
  9184.                 let deleteKeys = [];
  9185.                 arr.forEach((entry, key) => {
  9186.  
  9187.  
  9188.                   if (entry.cid === -1) {
  9189.                     entry.cid = -2;
  9190.                   } else if (entry.cid === -2) {
  9191.  
  9192.                     let offset = p - entry.add
  9193.                     if (offset < 0) offset = 0;
  9194.                     let delay2 = entry.delay - offset;
  9195.                     if (delay2 < 0) delay2 = 0;
  9196.                     entry.cid = setTimeout(entry.q(), delay2);
  9197.                     entry.q = null;
  9198.  
  9199.                   } else if (entry.add + entry.delay < p) {
  9200.                     deleteKeys.push(key);
  9201.  
  9202.                   }
  9203.  
  9204.                 })
  9205.  
  9206.                 for (const key of deleteKeys) arr.delete(key);
  9207.  
  9208.               }, 2000)
  9209.  
  9210.             }
  9211.  
  9212.  
  9213.  
  9214.  
  9215.             cProto.async = function (e, h) {
  9216.  
  9217.               if (!(0 < h)) return this.async71(e, h); // unknown timing Fn
  9218.  
  9219.               if (h < 8000) return this.async71(e, h) * 2; // native setTimeout
  9220.  
  9221.               if (typeof h !== 'number') return this.async71(e, h); // exceptional case
  9222.  
  9223.  
  9224.               if (!this.__asyncInited__) {
  9225.                 this.__asyncInited__ = 1;
  9226.                 __asyncInit__();
  9227.               }
  9228.               mcw += 2; // 2K+3, 2K+4, ...
  9229.               if (mcw > 1e9) mcw = mcw % 1e4;
  9230.               const cid = mcw;
  9231.               const q = () => {
  9232.                 return () => {
  9233.                   console.log('async h > 8000');
  9234.                   e.call(this);
  9235.                 }
  9236.               }
  9237.               // setTimeout(q, delay)
  9238.               arr.set(cid, {
  9239.                 cid: -1, // -1 -> -2 -> cid
  9240.                 add: Date.now(),
  9241.                 q,
  9242.                 delay: h
  9243.               });
  9244.               // console.log('cid-async', cid)
  9245.               return cid;
  9246.  
  9247.             }
  9248.  
  9249.  
  9250.             cProto.cancelAsync = function (e) {
  9251.  
  9252.               if (typeof e !== 'number') return this.cancelAsync71(e); // exceptional case
  9253.  
  9254.               // console.log('cid-unasync', e)
  9255.  
  9256.               if (0 > e) return this.cancelAsync71(e); // unknown timing fn
  9257.  
  9258.               if (e > __timeoutStartId__ * 2) { // __timeoutStartId__ is recorded and min is 2K+1
  9259.  
  9260.                 if ((e % 2) === 0) return this.cancelAsync71(e / 2); // 2(K+1), 2(K+2), ...
  9261.  
  9262.                 if (!arr.has(e)) return; // duplciated cancel
  9263.  
  9264.                 const entry = arr.get(e);
  9265.                 if (entry.cid < 0) {
  9266.                   entry.cid = 0;
  9267.                   arr.delete(e);
  9268.                 } else {
  9269.                   clearTimeout(entry.cid); // cid >= 1
  9270.                   entry.cid = 0;
  9271.                   arr.delete(e);
  9272.                 }
  9273.  
  9274.               } else {
  9275.  
  9276.                 return this.cancelAsync71(e);
  9277.  
  9278.               }
  9279.  
  9280.             }
  9281.  
  9282.             console.log("CHANGE_DATA_FLUSH_ASYNC - OK");
  9283.  
  9284.           } else {
  9285.             console.log("CHANGE_DATA_FLUSH_ASYNC - NOT REQUIRED");
  9286.  
  9287.           }
  9288.  
  9289.         })();
  9290.  
  9291.         console.log("[End]");
  9292.  
  9293.         console.groupEnd();
  9294.  
  9295.  
  9296.  
  9297.         onManagerFound(__dummyManager__);
  9298.  
  9299.       }).catch(console.warn);
  9300.  
  9301.  
  9302.  
  9303.  
  9304.       if (INTERACTIVITY_BACKGROUND_ANIMATION >= 1) {
  9305.  
  9306.  
  9307.         customElements.whenDefined("yt-live-interactivity-component-background").then(() => {
  9308.  
  9309.  
  9310.           mightFirstCheckOnYtInit();
  9311.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-interactivity-component-background hacks");
  9312.           console.log("[Begin]");
  9313.           (() => {
  9314.  
  9315.             const tag = "yt-live-interactivity-component-background"
  9316.             const dummy = document.createElement(tag);
  9317.  
  9318.             const cProto = getProto(dummy);
  9319.             if (!cProto || !cProto.attached) {
  9320.               console.warn(`proto.attached for ${tag} is unavailable.`);
  9321.               return;
  9322.             }
  9323.  
  9324.  
  9325.             cProto.__toStopAfterRun__ = function (hostElement) {
  9326.               let mo = new MutationObserver(() => {
  9327.                 mo.disconnect();
  9328.                 mo.takeRecords();
  9329.                 mo = null;
  9330.                 this.lottieAnimation && this.lottieAnimation.stop(); // primary
  9331.                 foregroundPromiseFn().then(() => { // if the lottieAnimation is started with rAf triggering
  9332.                   this.lottieAnimation && this.lottieAnimation.stop(); // fallback
  9333.                 });
  9334.               });
  9335.               mo.observe(hostElement, { subtree: true, childList: true });
  9336.             }
  9337.  
  9338.             if (INTERACTIVITY_BACKGROUND_ANIMATION >= 1 && typeof cProto.maybeLoadAnimationBackground === 'function' && !cProto.maybeLoadAnimationBackground77 && cProto.maybeLoadAnimationBackground.length === 0) {
  9339.  
  9340.               cProto.maybeLoadAnimationBackground77 = cProto.maybeLoadAnimationBackground;
  9341.               cProto.maybeLoadAnimationBackground = function () {
  9342.                 let toRun = true;
  9343.                 let stopAfterRun = false;
  9344.                 if (!this.__bypassDisableAnimationBackground__) {
  9345.                   let doFix = false;
  9346.                   if (INTERACTIVITY_BACKGROUND_ANIMATION === 1) {
  9347.                     if (!this.lottieAnimation) {
  9348.                       doFix = true;
  9349.                     }
  9350.                   } else if (INTERACTIVITY_BACKGROUND_ANIMATION === 2) {
  9351.                     doFix = true;
  9352.                   }
  9353.                   if (doFix) {
  9354.                     if (this.useAnimationBackground === true) {
  9355.                       console.log('DISABLE_INTERACTIVITY_BACKGROUND_ANIMATION', this.lottieAnimation);
  9356.                     }
  9357.                     toRun = true;
  9358.                     stopAfterRun = true;
  9359.                   }
  9360.                 }
  9361.                 if (toRun) {
  9362.                   if (stopAfterRun && (this.hostElement instanceof HTMLElement)) {
  9363.                     this.__toStopAfterRun__(this.hostElement); // primary
  9364.                   }
  9365.                   const r = this.maybeLoadAnimationBackground77.apply(this, arguments);
  9366.                   if (stopAfterRun && this.lottieAnimation) {
  9367.                     this.lottieAnimation.stop(); // fallback if no mutation
  9368.                   }
  9369.                   return r;
  9370.                 }
  9371.               }
  9372.  
  9373.               console.log(`INTERACTIVITY_BACKGROUND_ANIMATION${INTERACTIVITY_BACKGROUND_ANIMATION} - OK`);
  9374.  
  9375.             } else {
  9376.               console.log(`INTERACTIVITY_BACKGROUND_ANIMATION${INTERACTIVITY_BACKGROUND_ANIMATION} - NG`);
  9377.  
  9378.             }
  9379.  
  9380.           })();
  9381.  
  9382.           console.log("[End]");
  9383.  
  9384.           console.groupEnd();
  9385.  
  9386.  
  9387.         }).catch(console.warn);
  9388.  
  9389.       }
  9390.  
  9391.  
  9392.       if (DELAY_FOCUSEDCHANGED) {
  9393.  
  9394.         customElements.whenDefined("yt-live-chat-text-input-field-renderer").then(() => {
  9395.  
  9396.  
  9397.           mightFirstCheckOnYtInit();
  9398.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-text-input-field-renderer hacks");
  9399.           console.log("[Begin]");
  9400.           (() => {
  9401.  
  9402.             const tag = "yt-live-chat-text-input-field-renderer"
  9403.             const dummy = document.createElement(tag);
  9404.  
  9405.             const cProto = getProto(dummy);
  9406.             if (!cProto || !cProto.attached) {
  9407.               console.warn(`proto.attached for ${tag} is unavailable.`);
  9408.               return;
  9409.             }
  9410.  
  9411.             if (DELAY_FOCUSEDCHANGED && typeof cProto.focusedChanged === 'function' && cProto.focusedChanged.length === 0 && !cProto.focusedChanged372) {
  9412.               cProto.focusedChanged372 = cProto.focusedChanged;
  9413.               cProto.focusedChanged = function () {
  9414.                 Promise.resolve().then(() => {
  9415.                   if (this.isAttached === true) this.focusedChanged372();
  9416.                 });
  9417.               }
  9418.             }
  9419.  
  9420.           })();
  9421.  
  9422.           console.log("[End]");
  9423.  
  9424.           console.groupEnd();
  9425.  
  9426.         });
  9427.  
  9428.       }
  9429.  
  9430.  
  9431.     }
  9432.  
  9433.  
  9434.  
  9435.  
  9436.     promiseForCustomYtElementsReady.then(onRegistryReadyForDOMOperations);
  9437.  
  9438.     const fixJsonParse = () => {
  9439.  
  9440.       let p1 = window.onerror;
  9441.  
  9442.       try {
  9443.         JSON.parse("{}");
  9444.       } catch (e) {
  9445.         console.warn(e);
  9446.       }
  9447.  
  9448.       let p2 = window.onerror;
  9449.  
  9450.       if (p1 !== p2) {
  9451.  
  9452.  
  9453.         console.groupCollapsed(`%c${"YouTube Super Fast Chat"}%c${" | JS Engine Issue Found"}`,
  9454.           "background-color: #010502; color: #fe806a; font-weight: 700; padding: 2px;",
  9455.           "background-color: #010502; color: #fe806a; font-weight: 300; padding: 2px;"
  9456.         );
  9457.  
  9458.         console.warn("\nJSON.parse is hacked (e.g. Brave's script injection) which causes window.onerror changes on every JSON.parse call.\nPlease install https://greasyfork.org/scripts/473972-youtube-js-engine-tamer to fix the issue.\n");
  9459.  
  9460.         console.groupEnd();
  9461.  
  9462.       }
  9463.  
  9464.     }
  9465.  
  9466.     if (CHECK_JSONPRUNE) {
  9467.       promiseForCustomYtElementsReady.then(fixJsonParse);
  9468.     }
  9469.  
  9470.   });
  9471.  
  9472.  
  9473.  
  9474. })({ IntersectionObserver });