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YouTube 超快聊天

YouTube直播聊天的终极性能提升

当前为 2024-04-07 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name                YouTube Super Fast Chat
  3. // @version             0.61.5
  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://github.com/cyfung1031/userscript-supports/raw/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/475632/1340102/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 PREFETCH_LIMITED_SIZE_EMOJI = 512;            // DO NOT CHANGE THIS
  104.   const PREFETCH_LIMITED_SIZE_AUTHOR_PHOTO = 68;      // DO NOT CHANGE THIS
  105.   // << end >>
  106.  
  107.   const FIX_SETSRC_AND_THUMBNAILCHANGE_ = true;       // Function Replacement for yt-img-shadow....
  108.   const FIX_THUMBNAIL_DATACHANGED = true;             // Function Replacement for yt-live-chat-author-badge-renderer..dataChanged
  109.   // const REMOVE_PRELOADAVATARFORADDACTION = false;      // Function Replacement for yt-live-chat-renderer..preloadAvatarForAddAction
  110.  
  111.   const FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION = true;     // important [depends on <Group#I01>]
  112.   const FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT = true;  // [depends on <Group#I01>]
  113.  
  114.   const ATTEMPT_ANIMATED_TICKER_BACKGROUND = 'steps'   // false OR '' for disabled, 'linear', 'steps' for easing-function
  115.   // << if ATTEMPT_ANIMATED_TICKER_BACKGROUND >>
  116.   // BROWSER SUPPORT: Chrome 75+, Edge 79+, Safari 13.1+, Firefox 63+, Opera 62+
  117.   const TICKER_MAX_STEPS_LIMIT = 500;                       //  NOT LESS THAN 5 STEPS!!
  118.   // [limiting 500 max steps] is recommended for "confortable visual change"
  119.   //      min. step increment 0.2% => max steps: 500 =>  800ms per each update
  120.   //      min. step increment 0.5% => max steps: 200 => 1000ms per each update
  121.   //      min. step increment 1.0% => max steps: 100 => 1000ms per each update
  122.   //      min. step increment 2.5% => max steps:  40 => 1000ms per each update
  123.   //      min. step increment 5.0% => max steps:  20 => 1250ms per each update
  124.   const ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX = true;    // for video playback's ticker issue. [ Playback Replay - Pause at Middle - Backwards Seeking ]
  125.   // << end >>
  126.  
  127.   const FIX_TOOLTIP_DISPLAY = true;
  128.   const USE_VANILLA_DEREF = true;
  129.   const FIX_DROPDOWN_DERAF = true;                        // DONT CHANGE
  130.  
  131.  
  132.   const CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN = true;                // cache the menu data and used for the next reopen
  133.   const ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU = true;   // pause auto scroll faster when the context menu is about to show
  134.   const ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU = true;                // avoid multiple requests on the same time
  135.  
  136.   const BOOST_MENU_OPENCHANGED_RENDERING = true;
  137.   const FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK = true;  // click again = close
  138.   const NO_ITEM_TAP_FOR_NON_STATIONARY_TAP = true;                // dont open the menu (e.g. text message) if cursor is moved or long press
  139.   const TAP_ACTION_DURATION = 280;                                // exceeding 280ms would not consider as a tap action
  140.   const PREREQUEST_CONTEXT_MENU_ON_MOUSE_DOWN = true;             // require CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN = true
  141.   // const FIX_MENU_CAPTURE_SCROLL = true;
  142.   const CHAT_MENU_REFIT_ALONG_SCROLLING = 0;                      // 0 for locking / default; 1 for unlocking only; 2 for unlocking and refit
  143.  
  144.   const RAF_FIX_keepScrollClamped = true;
  145.   const RAF_FIX_scrollIncrementally = 2;                          // 0: no action; 1: basic fix; 2: also fix scroll position
  146.  
  147.   // << if BOOST_MENU_OPENCHANGED_RENDERING >>
  148.   const FIX_MENU_POSITION_N_SIZING_ON_SHOWN = 1;       // correct size and position when the menu dropdown opens
  149.  
  150.   const CHECK_JSONPRUNE = true;                        // This is a bug in Brave
  151.   // << end >>
  152.  
  153.   // const LIVE_CHAT_FLUSH_ON_FOREGROUND_ONLY = false;
  154.  
  155.   const CHANGE_DATA_FLUSH_ASYNC = false;
  156.   // CHANGE_DATA_FLUSH_ASYNC is disabled due to bug report: https://greasyfork.org/scripts/469878-youtube-super-fast-chat/discussions/199479
  157.   // to be further investigated
  158.  
  159.   const CHANGE_MANAGER_UNSUBSCRIBE = true;
  160.  
  161.   const INTERACTIVITY_BACKGROUND_ANIMATION = 1;         // mostly for pinned message
  162.   // 0 = default Yt animation background [= no fix];
  163.   // 1 = disable default animation background [= keep special animation];
  164.   // 2 = disable all animation backgrounds [= no animation backbround]
  165.  
  166.   const CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED = true;
  167.  
  168.   const MAX_TOOLTIP_NO_WRAP_WIDTH = '72vw'; // '' for disable; accept values like '60px', '25vw'
  169.  
  170.   const AMEND_TICKER_handleLiveChatAction = true; // to fix ticker duplication and unresponsively fast ticker generation
  171.  
  172.   const ATTEMPT_TICKER_ANIMATION_START_TIME_DETECTION = true;
  173.   const ADJUST_TICKER_DURATION_ALIGN_RENDER_TIME = true;
  174.   const FIX_BATCH_TICKER_ORDER = true;
  175.  
  176.   const DISABLE_Translation_By_Google = true;
  177.  
  178.   const FASTER_ICON_RENDERING = true;
  179.  
  180.   const DELAY_FOCUSEDCHANGED = true;
  181.  
  182.   const skipErrorForhandleAddChatItemAction_ = true; // currently depends on ENABLE_NO_SMOOTH_TRANSFORM
  183.   const fixChildrenIssue801 = true; // if __children801__ is set [fix polymer controller method extration for `.set()`]
  184.  
  185.   const SUPPRESS_refreshOffsetContainerHeight_ = true; // added in FEB 2024; true for default layout options
  186.  
  187.   const NO_FILTER_DROPDOWN_BORDER = true; // added in 2024.03.02
  188.  
  189.   const FIX_ANIMATION_TICKER_TEXT_POSITION = true; // CSS fix; experimential; added in 2024.04.07
  190.  
  191.   // ========= EXPLANTION FOR 0.2% @ step timing [min. 0.2%] ===========
  192.   /*
  193.  
  194.     ### Time Approach
  195.  
  196.     // all below values can make the time interval > 250ms
  197.     // 250ms (practical value) refers to the minimum frequency for timeupdate in most browsers (typically, shorter timeupdate interval in modern browsers)
  198.     if (totalDuration > 400000) stepInterval = 0.2;  // 400000ms with 0.2% increment => 800ms
  199.     else if (totalDuration > 200000) stepInterval = 0.5; // 200000ms with 0.5% increment => 1000ms
  200.     else if (totalDuration > 100000) stepInterval = 1; // 100000ms with 1% increment => 1000ms
  201.     else if (totalDuration > 50000) stepInterval = 2; // 50000ms with 2% increment => 1000ms
  202.     else if (totalDuration > 25000) stepInterval = 5; // 25000ms with 5% increment => 1250ms
  203.  
  204.     ### Pixel Check
  205.     // Target Max Pixel Increment < 5px for Short Period Ticker (Rapid Background Change)
  206.     // Assume total width <= 99px for short period ticker, like small donation & member welcome
  207.     99px * 5% = 4.95px < 5px [Condition Fulfilled]
  208.  
  209.     ### Example - totalDuration = 280000
  210.     totalDuration 280000
  211.     stepInterval 0.5
  212.     numOfSteps = Math.round(100 / stepInterval) = 200
  213.     time interval = 280000 / 200 = 1400ms <acceptable>
  214.  
  215.     ### Example - totalDuration = 18000
  216.     totalDuration 18000
  217.     stepInterval 5
  218.     numOfSteps = Math.round(100 / stepInterval) = 20
  219.     time interval = 18000 / 20 = 900ms <acceptable>
  220.  
  221.     ### Example - totalDuration = 5000
  222.     totalDuration 5000
  223.     stepInterval 5
  224.     numOfSteps = Math.round(100 / stepInterval) = 20
  225.     time interval = 5000 / 20 = 250ms <threshold value>
  226.  
  227.     ### Example - totalDuration = 3600
  228.     totalDuration 3600
  229.     stepInterval 5
  230.     numOfSteps = Math.round(100 / stepInterval) = 20
  231.     time interval = 3600 / 20 = 180ms <reasonable for 3600ms ticker>
  232.  
  233.   */
  234.  
  235.   // =======================================================================================================
  236.  
  237.   // AUTOMAICALLY DETERMINED
  238.   const ENABLE_FLAGS_MAINTAIN_STABLE_LIST = ENABLE_FLAGS_MAINTAIN_STABLE_LIST_VAL === 1;
  239.   const ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST = ENABLE_FLAGS_MAINTAIN_STABLE_LIST_VAL >= 1;
  240.   const CHAT_MENU_SCROLL_UNLOCKING = CHAT_MENU_REFIT_ALONG_SCROLLING >= 1;
  241.   let runTickerClassName = 'run-ticker';
  242.  
  243.   const dummyImgURL = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
  244.   /*
  245.     WebP: data:image/webp;base64,UklGRjAB
  246.     PNG: data:image/png;base64,iVBORw0KGg==
  247.     JPEG: data:image/jpeg;base64,/9j/4AA=
  248.     GIF: data:image/gif;base64,R0lGODlhAQABAIA=
  249.     BMP: data:image/bmp;base64,Qk1oAAAA
  250.     SVG: data:image/svg+xml;base64,PHN2Zy8+Cg==
  251.  
  252.     WebP: data:image/webp;base64,AAAAAAA=
  253.     PNG:  data:image/png;base64,AAAAAAA=
  254.     JPEG: data:image/jpeg;base64,AAAAAAA=
  255.     GIF:  data:image/gif;base64,AAAAAAA=
  256.     BMP:  data:image/bmp;base64,AAAAAAA=
  257.  
  258.     data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
  259.  
  260.  
  261.   */
  262.  
  263.   // image sizing code
  264.   // (d = (d = KC(a.customThumbnail.thumbnails, 16)) ? lc(oc(d)) : null)
  265.  
  266.  
  267.   //   function KC(a, b, c, d) {
  268.   //     d = void 0 === d ? "width" : d;
  269.   //     if (!a || !a.length)
  270.   //         return null;
  271.   //     if (z("kevlar_tuner_should_always_use_device_pixel_ratio")) {
  272.   //         var e = window.devicePixelRatio;
  273.   //         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"));
  274.   //         HC = e
  275.   //     } else
  276.   //         HC || (HC = window.devicePixelRatio);
  277.   //     e = HC;
  278.   //     z("kevlar_tuner_should_always_use_device_pixel_ratio") ? b *= e : 1 < e && (b *= e);
  279.   //     if (z("kevlar_tuner_min_thumbnail_quality"))
  280.   //         return a[0].url || null;
  281.   //     e = a.length;
  282.   //     if (z("kevlar_tuner_max_thumbnail_quality"))
  283.   //         return a[e - 1].url || null;
  284.   //     if (c)
  285.   //         for (var h = 0; h < e; h++)
  286.   //             if (0 <= a[h].url.indexOf(c))
  287.   //                 return a[h].url || null;
  288.   //     for (c = 0; c < e; c++)
  289.   //         if (a[c][d] >= b)
  290.   //             return a[c].url || null;
  291.   //     for (b = e - 1; 0 < b; b--)
  292.   //         if (a[b][d])
  293.   //             return a[b].url || null;
  294.   //     return a[0].url || null
  295.   // }
  296.  
  297.   const { IntersectionObserver } = __CONTEXT__;
  298.  
  299.   /** @type {globalThis.PromiseConstructor} */
  300.   const Promise = (async () => { })().constructor; // YouTube hacks Promise in WaterFox Classic and "Promise.resolve(0)" nevers resolve.
  301.  
  302.   // let jsonParseFix = null;
  303.  
  304.   if (!IntersectionObserver) return console.warn("Your browser does not support IntersectionObserver.\nPlease upgrade to the latest version.");
  305.   if (typeof WebAssembly !== 'object') return console.warn("Your browser is too old.\nPlease upgrade to the latest version."); // for passive and once
  306.  
  307.   // necessity of cssText3_smooth_transform_position to be checked.
  308.   const cssText3_smooth_transform_position = ENABLE_NO_SMOOTH_TRANSFORM ? `
  309.  
  310.     #item-offset.style-scope.yt-live-chat-item-list-renderer > #items.style-scope.yt-live-chat-item-list-renderer {
  311.         position: static !important;
  312.     }
  313.  
  314.   `: '';
  315.  
  316.   // fallback if dummy style fn fails
  317.   const cssText4_smooth_transform_forced_props = ENABLE_NO_SMOOTH_TRANSFORM ? `
  318.  
  319.     /* optional */
  320.     #item-offset.style-scope.yt-live-chat-item-list-renderer {
  321.         height: auto !important;
  322.         min-height: unset !important;
  323.     }
  324.  
  325.     #items.style-scope.yt-live-chat-item-list-renderer {
  326.         transform: translateY(0px) !important;
  327.     }
  328.  
  329.     /* optional */
  330.  
  331.   `: '';
  332.  
  333.   const cssText5 = SET_CONTAIN_FOR_CHATROOM ? `
  334.  
  335.     /* ------------------------------------------------------------------------------------------------------------- */
  336.  
  337.     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 {
  338.         contain: layout style;
  339.     }
  340.  
  341.     #items.style-scope.yt-live-chat-item-list-renderer {
  342.         contain: layout paint style;
  343.     }
  344.  
  345.     #item-offset.style-scope.yt-live-chat-item-list-renderer {
  346.         contain: style;
  347.     }
  348.  
  349.     #item-scroller.style-scope.yt-live-chat-item-list-renderer {
  350.         contain: size style;
  351.     }
  352.  
  353.     #contents.style-scope.yt-live-chat-item-list-renderer, #chat.style-scope.yt-live-chat-renderer, img.style-scope.yt-img-shadow[width][height] {
  354.         contain: size layout paint style;
  355.     }
  356.  
  357.     .style-scope.yt-live-chat-ticker-renderer[role="button"][aria-label], .style-scope.yt-live-chat-ticker-renderer[role="button"][aria-label] > #container {
  358.         contain: layout paint style;
  359.     }
  360.  
  361.     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 {
  362.         contain: layout style;
  363.     }
  364.  
  365.     tp-yt-paper-tooltip[style*="inset"][role="tooltip"] {
  366.         contain: layout paint style;
  367.     }
  368.  
  369.     /* ------------------------------------------------------------------------------------------------------------- */
  370.  
  371.   ` : '';
  372.  
  373.   const cssText6b_show_more_button = FIX_SHOW_MORE_BUTTON_LOCATION ? `
  374.  
  375.     yt-live-chat-renderer[has-action-panel-renderer] #show-more.yt-live-chat-item-list-renderer{
  376.         top: 4px;
  377.         transition-property: top;
  378.         bottom: unset;
  379.     }
  380.  
  381.     yt-live-chat-renderer[has-action-panel-renderer] #show-more.yt-live-chat-item-list-renderer[disabled]{
  382.         top: -42px;
  383.     }
  384.  
  385.   `: '';
  386.  
  387.   const cssText6c_input_panel_overflow = FIX_INPUT_PANEL_OVERFLOW_ISSUE ? `
  388.  
  389.     #input-panel #picker-buttons yt-live-chat-icon-toggle-button-renderer#product-picker {
  390.         contain: layout style;
  391.     }
  392.  
  393.     #chat.yt-live-chat-renderer ~ #panel-pages.yt-live-chat-renderer {
  394.         overflow: visible;
  395.     }
  396.  
  397.   `: '';
  398.  
  399.   const cssText6d_input_panel_border = FIX_INPUT_PANEL_BORDER_ISSUE ? `
  400.  
  401.     html #panel-pages.yt-live-chat-renderer > #input-panel.yt-live-chat-renderer:not(:empty) {
  402.         --yt-live-chat-action-panel-top-border: none;
  403.     }
  404.  
  405.     html #panel-pages.yt-live-chat-renderer > #input-panel.yt-live-chat-renderer.iron-selected > *:first-child {
  406.         border-top: 1px solid var(--yt-live-chat-panel-pages-border-color);
  407.     }
  408.  
  409.     html #panel-pages.yt-live-chat-renderer {
  410.         border-top: 0;
  411.         border-bottom: 0;
  412.     }
  413.  
  414.   `: '';
  415.  
  416.   const cssText7b_content_visibility_unset = FORCE_CONTENT_VISIBILITY_UNSET ? `
  417.  
  418.     img,
  419.     yt-img-shadow[height][width],
  420.     yt-img-shadow {
  421.         content-visibility: visible !important;
  422.     }
  423.  
  424.   `  : '';
  425.  
  426.   const cssText7c_will_change_unset = FORCE_WILL_CHANGE_UNSET ? `
  427.  
  428.     /* remove YouTube constant will-change */
  429.     /* constant value will slow down the performance; default auto */
  430.  
  431.     /* www-player.css */
  432.     html .ytp-contextmenu,
  433.     html .ytp-settings-menu {
  434.         will-change: unset;
  435.     }
  436.  
  437.     /* frequently matched elements */
  438.     html .fill.yt-interaction,
  439.     html .stroke.yt-interaction,
  440.     html .yt-spec-touch-feedback-shape__fill,
  441.     html .yt-spec-touch-feedback-shape__stroke {
  442.         will-change: unset;
  443.     }
  444.  
  445.     /* live_chat_polymer.js */
  446.     /*
  447.     html .toggle-button.tp-yt-paper-toggle-button,
  448.     html #primaryProgress.tp-yt-paper-progress,
  449.     html #secondaryProgress.tp-yt-paper-progress,
  450.     html #onRadio.tp-yt-paper-radio-button,
  451.     html .fill.yt-interaction,
  452.     html .stroke.yt-interaction,
  453.     html .yt-spec-touch-feedback-shape__fill,
  454.     html .yt-spec-touch-feedback-shape__stroke {
  455.         will-change: unset;
  456.     }
  457.     */
  458.  
  459.     /* desktop_polymer_enable_wil_icons.js */
  460.     /* html .fill.yt-interaction,
  461.     html .stroke.yt-interaction, */
  462.     html tp-yt-app-header::before,
  463.     html tp-yt-iron-list,
  464.     html #items.tp-yt-iron-list > *,
  465.     html #onRadio.tp-yt-paper-radio-button,
  466.     html .toggle-button.tp-yt-paper-toggle-button,
  467.     html ytd-thumbnail-overlay-toggle-button-renderer[use-expandable-tooltip] #label.ytd-thumbnail-overlay-toggle-button-renderer,
  468.     html #items.ytd-post-multi-image-renderer,
  469.     html #items.ytd-horizontal-card-list-renderer,
  470.     html #items.yt-horizontal-list-renderer,
  471.     html #left-arrow.yt-horizontal-list-renderer,
  472.     html #right-arrow.yt-horizontal-list-renderer,
  473.     html #items.ytd-video-description-infocards-section-renderer,
  474.     html #items.ytd-video-description-music-section-renderer,
  475.     html #chips.ytd-feed-filter-chip-bar-renderer,
  476.     html #chips.yt-chip-cloud-renderer,
  477.     html #items.ytd-merch-shelf-renderer,
  478.     html #items.ytd-product-details-image-carousel-renderer,
  479.     html ytd-video-preview,
  480.     html #player-container.ytd-video-preview,
  481.     html #primaryProgress.tp-yt-paper-progress,
  482.     html #secondaryProgress.tp-yt-paper-progress,
  483.     html ytd-miniplayer[enabled] /* ,
  484.     html .yt-spec-touch-feedback-shape__fill,
  485.     html .yt-spec-touch-feedback-shape__stroke */ {
  486.         will-change: unset;
  487.     }
  488.  
  489.     /* other */
  490.     .ytp-videowall-still-info-content[class],
  491.     .ytp-suggestion-image[class] {
  492.         will-change: unset !important;
  493.     }
  494.  
  495.   ` : '';
  496.  
  497.   const ENABLE_FONT_PRE_RENDERING = typeof HTMLElement.prototype.append === 'function' ? (ENABLE_FONT_PRE_RENDERING_PREFERRED || 0) : 0;
  498.   const cssText8_fonts_pre_render = ENABLE_FONT_PRE_RENDERING ? `
  499.  
  500.     elzm-fonts {
  501.         visibility: collapse;
  502.         position: fixed;
  503.         top: -10px;
  504.         left: -10px;
  505.         font-size: 10pt;
  506.         line-height: 100%;
  507.         width: 100px;
  508.         height: 100px;
  509.         transform: scale(0.1);
  510.         transform: scale(0.01);
  511.         transform: scale(0.001);
  512.         transform-origin: 0 0;
  513.         contain: strict;
  514.         display: block;
  515.  
  516.         pointer-events: none !important;
  517.         user-select: none !important;
  518.     }
  519.  
  520.     elzm-fonts[id]#elzm-fonts-yk75g {
  521.         user-select: none !important;
  522.         pointer-events: none !important;
  523.     }
  524.  
  525.     elzm-font {
  526.         visibility: collapse;
  527.         position: absolute;
  528.         line-height: 100%;
  529.         width: 100px;
  530.         height: 100px;
  531.         contain: strict;
  532.         display: block;
  533.  
  534.         user-select: none !important;
  535.         pointer-events: none !important;
  536.     }
  537.  
  538.     elzm-font::before {
  539.         visibility: collapse;
  540.         position: absolute;
  541.         line-height: 100%;
  542.         width: 100px;
  543.         height: 100px;
  544.         contain: strict;
  545.         display: block;
  546.  
  547.         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';
  548.  
  549.         user-select: none !important;
  550.         pointer-events: none !important;
  551.     }
  552.  
  553.   `: '';
  554.  
  555.   const cssText9_no_backdrop_filter_when_menu_shown = NO_BACKDROP_FILTER_WHEN_MENU_SHOWN ? `
  556.     tp-yt-iron-dropdown.yt-live-chat-app ytd-menu-popup-renderer  {
  557.         -webkit-backdrop-filter: none;
  558.         backdrop-filter: none;
  559.     }
  560.   `: '';
  561.  
  562.   const cssText10_show_more_blinker = ENABLE_SHOW_MORE_BLINKER ? `
  563.  
  564.     @keyframes blinker-miuzp {
  565.         0%, 60%, 100% {
  566.             opacity: 1;
  567.         }
  568.         30% {
  569.             opacity: 0.6;
  570.         }
  571.     }
  572.  
  573.     yt-icon-button#show-more.has-new-messages-miuzp {
  574.         animation: blinker-miuzp 1.74s linear infinite;
  575.     }
  576.  
  577.   `: '';
  578.  
  579.   const cssText11_entire_message_clickable = FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK ? `
  580.  
  581.     yt-live-chat-paid-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  582.       pointer-events: none !important;
  583.     }
  584.  
  585.     yt-live-chat-membership-item-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  586.       pointer-events: none !important;
  587.     }
  588.  
  589.     yt-live-chat-paid-sticker-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  590.       pointer-events: none !important;
  591.     }
  592.  
  593.     yt-live-chat-text-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  594.       pointer-events: none !important; /* TO_BE_REVIEWED */
  595.     }
  596.  
  597.     yt-live-chat-auto-mod-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  598.       pointer-events: none !important;
  599.     }
  600.  
  601.   `: '';
  602.  
  603.   const cssText12_nowrap_tooltip = MAX_TOOLTIP_NO_WRAP_WIDTH && typeof MAX_TOOLTIP_NO_WRAP_WIDTH === 'string' ? `
  604.  
  605.  
  606.     tp-yt-paper-tooltip[role="tooltip"] {
  607.       box-sizing: content-box !important;
  608.       margin: 0px !important;
  609.       padding: 0px !important;
  610.       contain: none !important;
  611.     }
  612.  
  613.     tp-yt-paper-tooltip[role="tooltip"] #tooltip[style-target="tooltip"] {
  614.       box-sizing: content-box !important;
  615.       display: inline-block;
  616.       contain: none !important;
  617.     }
  618.  
  619.  
  620.     tp-yt-paper-tooltip[role="tooltip"] #tooltip[style-target="tooltip"]{
  621.       max-width: ${MAX_TOOLTIP_NO_WRAP_WIDTH};
  622.       width: max-content;
  623.       text-overflow: ellipsis;
  624.       overflow: hidden;
  625.       white-space: nowrap;
  626.     }
  627.  
  628.  
  629.   `: '';
  630.  
  631.  
  632.   const cssText13_no_text_select_when_menu_visible = `
  633.     [menu-visible] {
  634.       --sfc47-text-select: none;
  635.     }
  636.     [menu-visible] #header[id][class],
  637.     [menu-visible] #content[id][class],
  638.     [menu-visible] #header[id][class] *,
  639.     [menu-visible] #content[id][class] * {
  640.       user-select: var(--sfc47-text-select) !important;
  641.     }
  642.     [menu-visible] #menu {
  643.       --sfc47-text-select: inherit;
  644.     }
  645.   `;
  646.  
  647.   const cssText14_NO_FILTER_DROPDOWN_BORDER = NO_FILTER_DROPDOWN_BORDER ? `
  648.   yt-live-chat-header-renderer.yt-live-chat-renderer #label.yt-dropdown-menu::before {
  649.     border:0;
  650.   }
  651.   ` : '';
  652.  
  653.   const cssText15_FIX_ANIMATION_TICKER_TEXT_POSITION = FIX_ANIMATION_TICKER_TEXT_POSITION ? `
  654.   
  655.     .style-scope.yt-live-chat-ticker-renderer #animation-container[id][class] {
  656.       position: relative;
  657.       display: grid;
  658.       grid-auto-columns: 1fr;
  659.       grid-auto-rows: 1fr;
  660.       grid-template-columns: repeat(1, 1fr);
  661.       gap: 9px;
  662.       padding-bottom: 0;
  663.       margin-bottom: 0;
  664.       padding-top: 0;
  665.       margin-top: 0;
  666.       margin-top: -2px;
  667.     }
  668.  
  669.     .style-scope.yt-live-chat-ticker-renderer #animation-container > [id][class] {
  670.       margin-top: 0px;
  671.       margin-bottom: 0px;
  672.       display: flex;
  673.       flex-direction: column;
  674.       justify-content: center;
  675.     }
  676.   ` : '';
  677.  
  678.  
  679.   const addCss = () => `
  680.  
  681.     @property --ticker-rtime {
  682.       syntax: "<percentage>";
  683.       inherits: false;
  684.       initial-value: 0%;
  685.     }
  686.  
  687.     /*
  688.     .run-ticker {
  689.       background:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2));
  690.     }
  691.  
  692.     .run-ticker-test {
  693.       background: #00000001;
  694.     }
  695.  
  696.     .run-ticker-forced,
  697.     yt-live-chat-ticker-renderer #items > * > #container.run-ticker-forced,
  698.     yt-live-chat-ticker-renderer[class] #items[class] > *[class] > #container.run-ticker-forced[class]
  699.     {
  700.       background:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2)) !important;
  701.     }
  702.     */
  703.  
  704.     .run-ticker {
  705.       --ticker-bg:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2));
  706.     }
  707.  
  708.     .run-ticker,
  709.     yt-live-chat-ticker-renderer #items > * > #container.run-ticker,
  710.     yt-live-chat-ticker-renderer[class] #items[class] > *[class] > #container.run-ticker[class]
  711.     {
  712.       background: var(--ticker-bg) !important;
  713.     }
  714.  
  715.     yt-live-chat-ticker-dummy777-item-renderer {
  716.       background: #00000001;
  717.     }
  718.  
  719.     yt-live-chat-ticker-dummy777-item-renderer[dummy777] {
  720.       position: fixed !important;
  721.       top: -1000px !important;
  722.       left: -1000px !important;
  723.       font-size: 1px !important;
  724.       color: transparent !important;
  725.       pointer-events: none !important;
  726.       z-index: -1 !important;
  727.       contain: strict !important;
  728.       box-sizing: border-box !important;
  729.       pointer-events: none !important;
  730.       user-select: none !important;
  731.       max-width: 1px !important;
  732.       max-height: 1px !important;
  733.       overflow: hidden !important;
  734.       visibility: collapse !important;
  735.       display: none !important;
  736.     }
  737.  
  738.     yt-live-chat-ticker-dummy777-item-renderer #container {
  739.       background: inherit;
  740.     }
  741.  
  742.  
  743.     ${cssText8_fonts_pre_render}
  744.  
  745.     ${cssText9_no_backdrop_filter_when_menu_shown}
  746.  
  747.     @supports (contain: layout paint style) {
  748.  
  749.       ${cssText5}
  750.  
  751.     }
  752.  
  753.     @supports (color: var(--general)) {
  754.  
  755.       html {
  756.           --yt-live-chat-item-list-renderer-padding: 0px 0px;
  757.       }
  758.  
  759.       ${cssText3_smooth_transform_position}
  760.  
  761.       ${cssText7c_will_change_unset}
  762.  
  763.       ${cssText7b_content_visibility_unset}
  764.  
  765.       yt-live-chat-item-list-renderer:not([allow-scroll]) #item-scroller.yt-live-chat-item-list-renderer {
  766.           overflow-y: scroll;
  767.           padding-right: 0;
  768.       }
  769.  
  770.       ${cssText4_smooth_transform_forced_props}
  771.  
  772.       yt-icon[icon="down_arrow"] > *, yt-icon-button#show-more > * {
  773.           pointer-events: none !important;
  774.       }
  775.  
  776.       #continuations, #continuations * {
  777.           contain: strict;
  778.           position: fixed;
  779.           top: 2px;
  780.           height: 1px;
  781.           width: 2px;
  782.           height: 1px;
  783.           visibility: collapse;
  784.       }
  785.  
  786.       ${cssText6b_show_more_button}
  787.  
  788.       ${cssText6d_input_panel_border}
  789.  
  790.       ${cssText6c_input_panel_overflow}
  791.  
  792.     }
  793.  
  794.  
  795.     @supports (overflow-anchor: auto) {
  796.  
  797.       .no-anchor * {
  798.           overflow-anchor: none;
  799.       }
  800.       .no-anchor > item-anchor {
  801.           overflow-anchor: auto;
  802.       }
  803.  
  804.       item-anchor {
  805.  
  806.           height:1px;
  807.           width: 100%;
  808.           transform: scaleY(0.00001);
  809.           transform-origin:0 0;
  810.           contain: strict;
  811.           opacity:0;
  812.           display:flex;
  813.           position:relative;
  814.           flex-shrink:0;
  815.           flex-grow:0;
  816.           margin-bottom:0;
  817.           overflow:hidden;
  818.           box-sizing:border-box;
  819.           visibility: visible;
  820.           content-visibility: visible;
  821.           contain-intrinsic-size: auto 1px;
  822.           pointer-events:none !important;
  823.  
  824.       }
  825.  
  826.       #item-scroller.style-scope.yt-live-chat-item-list-renderer[class] {
  827.           overflow-anchor: initial !important; /* whenever ENABLE_OVERFLOW_ANCHOR or not */
  828.       }
  829.  
  830.       html item-anchor {
  831.  
  832.           height: 1px;
  833.           width: 1px;
  834.           top: auto;
  835.           left: auto;
  836.           right: auto;
  837.           bottom: auto;
  838.           transform: translateY(-1px);
  839.           position: absolute;
  840.           z-index: -1;
  841.  
  842.       }
  843.  
  844.     }
  845.  
  846.     @supports (color: var(--pre-rendering)) {
  847.  
  848.       @keyframes dontRenderAnimation {
  849.           0% {
  850.               background-position-x: 3px;
  851.           }
  852.           100% {
  853.               background-position-x: 4px;
  854.           }
  855.       }
  856.  
  857.       .dont-render[class] {
  858.           /* visibility: collapse !important; */
  859.           /* visibility: collapse will make innerText become "" which conflicts with BetterStreamChat; see https://greasyfork.org/scripts/469878/discussions/197267 */
  860.  
  861.           transform: scale(0.01) !important;
  862.           transform: scale(0.00001) !important;
  863.           transform: scale(0.0000001) !important;
  864.           transform-origin: 0 0 !important;
  865.           z-index: -1 !important;
  866.           contain: strict !important;
  867.           box-sizing: border-box !important;
  868.  
  869.           height: 1px !important;
  870.           height: 0.1px !important;
  871.           height: 0.01px !important;
  872.           height: 0.0001px !important;
  873.           height: 0.000001px !important;
  874.  
  875.           animation: dontRenderAnimation 1ms linear 80ms 1 normal forwards !important;
  876.  
  877.           pointer-events: none !important;
  878.           user-select: none !important;
  879.  
  880.       }
  881.  
  882.       #sk35z {
  883.         display: block !important;
  884.  
  885.         visibility: collapse !important;
  886.  
  887.         transform: scale(0.01) !important;
  888.         transform: scale(0.00001) !important;
  889.         transform: scale(0.0000001) !important;
  890.         transform-origin: 0 0 !important;
  891.         z-index: -1 !important;
  892.         contain: strict !important;
  893.         box-sizing: border-box !important;
  894.  
  895.         height: 1px !important;
  896.         height: 0.1px !important;
  897.         height: 0.01px !important;
  898.         height: 0.0001px !important;
  899.         height: 0.000001px !important;
  900.  
  901.         position: absolute !important;
  902.         top: -1000px !important;
  903.         left: -1000px !important;
  904.  
  905.       }
  906.  
  907.     }
  908.  
  909.     [rNgzQ] {
  910.       opacity: 0 !important;
  911.       pointer-events: none !important;
  912.     }
  913.  
  914.  
  915.     ${cssText10_show_more_blinker}
  916.  
  917.     ${cssText11_entire_message_clickable}
  918.  
  919.     ${cssText12_nowrap_tooltip}
  920.  
  921.     ${cssText13_no_text_select_when_menu_visible}
  922.  
  923.     ${cssText14_NO_FILTER_DROPDOWN_BORDER}
  924.  
  925.     ${cssText15_FIX_ANIMATION_TICKER_TEXT_POSITION}
  926.  
  927.   `;
  928.  
  929.  
  930.   const konsole = {
  931.     nil: Symbol(),
  932.     logs: [],
  933.     style: '',
  934.     log(...args) {
  935.       konsole.logs.push({
  936.         type: 'log',
  937.         msg: [konsole.tag || konsole.nil, ...args, konsole.style || konsole.nil].filter(e => e !== konsole.nil)
  938.       });
  939.     },
  940.     setTag(tag) {
  941.       konsole.tag = tag;
  942.     },
  943.     setStyle(style) {
  944.       konsole.style = style;
  945.     },
  946.     groupCollapsed(...args) {
  947.  
  948.       konsole.logs.push({
  949.         type: 'groupCollapsed',
  950.         msg: [...args].filter(e => e !== konsole.nil)
  951.       });
  952.     },
  953.     groupEnd() {
  954.  
  955.       konsole.logs.push({
  956.         type: 'groupEnd'
  957.       })
  958.     },
  959.     print() {
  960.       const copy = konsole.logs.slice(0);
  961.       konsole.logs.length = 0;
  962.       for (const { type, msg } of copy) {
  963.         if (type === 'log') {
  964.           console.log(...msg)
  965.         } else if (type === 'groupCollapsed') {
  966.  
  967.           console.groupCollapsed(...msg)
  968.         } else if (type === 'groupEnd') {
  969.           console.groupEnd();
  970.         }
  971.  
  972.       }
  973.  
  974.     }
  975.   };
  976.  
  977.   /*
  978.   konsole.groupCollapsedX = (text1, text2) => {
  979.  
  980.     if(!text2){
  981.  
  982.       konsole.groupCollapsed(`%c${text1}`,
  983.       "background-color: #010502; color: #6acafe; font-weight: 700; padding: 2px;"
  984.     );
  985.     }else{
  986.  
  987.       konsole.groupCollapsed(`%c${text1}%c${text2}`,
  988.       "background-color: #010502; color: #6acafe; font-weight: 700; padding: 2px;",
  989.       "background-color: #010502; color: #6ad9fe; font-weight: 300; padding: 2px;"
  990.     );
  991.     }
  992.   }
  993.  
  994.   konsole.groupCollapsedX('YouTube Super Fast Chat');
  995.  
  996.   setTimeout(()=>{
  997.  
  998.     konsole.setTag('[[Fonts Pre-Rendering]]');
  999.     konsole.log(123);
  1000.     konsole.log('wsd',332, 'ssa');
  1001.     konsole.setTag('');
  1002.   }, 100);
  1003.  
  1004.   setTimeout(()=>{
  1005.  
  1006.     konsole.setTag('[[Fonts Pre-Rendering 2]]');
  1007.     konsole.log(123);
  1008.     konsole.log('wsd',332, 'ssa');
  1009.     konsole.setTag('');
  1010.   }, 300);
  1011.  
  1012.   setTimeout(()=>{
  1013.  
  1014.   konsole.groupEnd();
  1015.   konsole.print();
  1016.   }, 1000);
  1017.  
  1018.   */
  1019.  
  1020.   const win = typeof unsafeWindow !== 'undefined' ? unsafeWindow : (this instanceof Window ? this : window);
  1021.  
  1022.   // Create a unique key for the script and check if it is already running
  1023.   const hkey_script = 'mchbwnoasqph';
  1024.   if (win[hkey_script]) throw new Error('Duplicated Userscript Calling'); // avoid duplicated scripting
  1025.   win[hkey_script] = true;
  1026.  
  1027.   if (!!ATTEMPT_ANIMATED_TICKER_BACKGROUND) {
  1028.  
  1029.     let te4 = setTimeout(() => { }); // dummy; skip timerId only;
  1030.     if (te4 < 3) {
  1031.       setTimeout(() => { });
  1032.       setTimeout(() => { });
  1033.     }
  1034.  
  1035.   }
  1036.  
  1037.   const firstKey = (obj) => {
  1038.     for (const key in obj) {
  1039.       if (obj.hasOwnProperty(key)) return key;
  1040.     }
  1041.     return null;
  1042.   }
  1043.  
  1044.   const firstObjectKey = (obj) => {
  1045.     for (const key in obj) {
  1046.       if (obj.hasOwnProperty(key) && typeof obj[key] === 'object') return key;
  1047.     }
  1048.     return null;
  1049.   }
  1050.   
  1051.     /**
  1052.    * Takes in a __SORTED__ array and inserts the provided value into
  1053.    * the correct, sorted, position.
  1054.    * > https://github.com/bhowell2/binary-insert-js/
  1055.    * @param array the sorted array where the provided value needs to be inserted (in order)
  1056.    * @param insertValue value to be added to the array
  1057.    * @param comparator function that helps determine where to insert the value (
  1058.    */
  1059.   function binaryInsert(array, insertValue, comparator) {
  1060.     let left = 0;
  1061.     let right = array.length;
  1062.  
  1063.     let z;
  1064.     // Directly return if array is empty or the insertValue should be at the end
  1065.     if (right === 0 || (z = comparator(array[right - 1], insertValue)) <= 0) {
  1066.       array.push(insertValue);
  1067.       return array;
  1068.     }
  1069.  
  1070.     // Check if the insertValue should be at the beginning
  1071.     if ((right === 1 ? z : comparator(array[0], insertValue)) >= 0) {
  1072.       array.unshift(insertValue);
  1073.       return array;
  1074.     }
  1075.     ++left; --right;
  1076.  
  1077.     // Main binary search loop to find the insertion position
  1078.     while (left < right) {
  1079.       const mid = Math.floor((right + left) / 2);
  1080.       const compared = comparator(array[mid], insertValue);
  1081.       if (compared < 0) {
  1082.         left = mid + 1;
  1083.       } else if (compared > 0) {
  1084.         right = mid;
  1085.       } else {
  1086.         // If equal, insert at the mid position
  1087.         left = right = mid;
  1088.         break;
  1089.       }
  1090.     }
  1091.  
  1092.     // Insertion is always at the right position due to the nature of the binary search
  1093.     array.splice(right, 0, insertValue);
  1094.     return array;
  1095.   }
  1096.     
  1097.     
  1098.     
  1099.  
  1100.   class LimitedSizeSet extends Set {
  1101.     constructor(n) {
  1102.       super();
  1103.  
  1104.       this.limit = n;
  1105.     }
  1106.  
  1107.     add(key) {
  1108.       if (!super.has(key)) {
  1109.         super.add(key); // Set the key with a dummy value (true)
  1110.         while (super.size > this.limit) {
  1111.           const firstKey = super.values().next().value; // Get the first (oldest) key
  1112.           super.delete(firstKey); // Delete the oldest key
  1113.         }
  1114.       }
  1115.     }
  1116.  
  1117.     removeAdd(key) {
  1118.       super.delete(key);
  1119.       super.add(key);
  1120.     }
  1121.  
  1122.   }
  1123.  
  1124.   // function removeElementFromArray(arr, index) {
  1125.   //   if (index >= 0 && index < arr.length) {
  1126.   //     arr.splice(index, 1);
  1127.   //   }
  1128.   // }
  1129.  
  1130.   // function getRandomInt(a, b) {
  1131.   //   // Ensure that 'a' and 'b' are integers
  1132.   //   a = Math.ceil(a);
  1133.   //   b = Math.floor(b);
  1134.  
  1135.   //   // Generate a random integer in the range [a, b]
  1136.   //   return Math.floor(Math.random() * (b - a + 1)) + a;
  1137.   // }
  1138.  
  1139.   function deepCopy(obj, skipKeys) {
  1140.     skipKeys = skipKeys || [];
  1141.     if (!obj || typeof obj !== 'object') return obj;
  1142.     if (Array.isArray(obj)) {
  1143.       return obj.map(item => deepCopy(item, skipKeys));
  1144.     }
  1145.     const copy = {};
  1146.     for (let key in obj) {
  1147.       if (!skipKeys.includes(key)) {
  1148.         copy[key] = deepCopy(obj[key], skipKeys);
  1149.       }
  1150.     }
  1151.     return copy;
  1152.   }
  1153.  
  1154.   class Mutex {
  1155.  
  1156.     constructor() {
  1157.       this.p = Promise.resolve()
  1158.     }
  1159.  
  1160.     /**
  1161.      *  @param {(lockResolve: () => void)} f
  1162.      */
  1163.     lockWith(f) {
  1164.       this.p = this.p.then(() => new Promise(f).catch(console.warn))
  1165.     }
  1166.  
  1167.   }
  1168.  
  1169.   const PromiseExternal = ((resolve_, reject_) => {
  1170.     const h = (resolve, reject) => { resolve_ = resolve; reject_ = reject };
  1171.     return class PromiseExternal extends Promise {
  1172.       constructor(cb = h) {
  1173.         super(cb);
  1174.         if (cb === h) {
  1175.           /** @type {(value: any) => void} */
  1176.           this.resolve = resolve_;
  1177.           /** @type {(reason?: any) => void} */
  1178.           this.reject = reject_;
  1179.         }
  1180.       }
  1181.     };
  1182.   })();
  1183.  
  1184.   /** @type {typeof PromiseExternal.prototype | null} */
  1185.   let relayPromise = null;
  1186.  
  1187.  
  1188.   /** @type {typeof PromiseExternal.prototype | null} */
  1189.   let onPlayStateChangePromise = null;
  1190.  
  1191.  
  1192.  
  1193.   let playEventsStack = Promise.resolve();
  1194.  
  1195.  
  1196.   let playerProgressChangedArg1 = null;
  1197.   let playerProgressChangedArg2 = null;
  1198.   let playerProgressChangedArg3 = null;
  1199.  
  1200.  
  1201.   function dr(s) {
  1202.     // reserved for future use
  1203.     return s;
  1204.     // return window.deWeakJS ? window.deWeakJS(s) : s;
  1205.   }
  1206.  
  1207.   const insp = o => o ? (o.polymerController || o.inst || o || 0) : (o || 0);
  1208.   const indr = o => insp(o).$ || o.$ || 0;
  1209.  
  1210.   const getProto = (element) => {
  1211.     if (element) {
  1212.       const cnt = insp(element);
  1213.       return cnt.constructor.prototype || null;
  1214.     }
  1215.     return null;
  1216.   }
  1217.  
  1218.   const assertor = (f) => f() || console.assert(false, f + "");
  1219.  
  1220.   const fnIntegrity = (f, d) => {
  1221.     if (!f || typeof f !== 'function') {
  1222.       console.warn('f is not a function', f);
  1223.       return;
  1224.     }
  1225.     let p = f + "", s = 0, j = -1, w = 0;
  1226.     for (let i = 0, l = p.length; i < l; i++) {
  1227.       const t = p[i];
  1228.       if (((t >= 'a' && t <= 'z') || (t >= 'A' && t <= 'Z'))) {
  1229.         if (j < i - 1) w++;
  1230.         j = i;
  1231.       } else {
  1232.         s++;
  1233.       }
  1234.     }
  1235.     let itz = `${f.length}.${s}.${w}`;
  1236.     if (!d) {
  1237.       return itz;
  1238.     } else if (itz !== d) {
  1239.       console.warn('fnIntegrity=false', itz);
  1240.       return false;
  1241.     } else {
  1242.       return true;
  1243.     }
  1244.   }
  1245.  
  1246.  
  1247.   const px2cm = (px) => px * window.devicePixelRatio * 0.026458333;
  1248.   const px2mm = (px) => px * window.devicePixelRatio * 0.26458333;
  1249.  
  1250.  
  1251.   ; (ENABLE_FLAGS_MAINTAIN_STABLE_LIST || ENABLE_FLAGS_REUSE_COMPONENTS || DISABLE_FLAGS_SHADYDOM_FREE) && (() => {
  1252.  
  1253.     const _config_ = () => {
  1254.       try {
  1255.         return ytcfg.data_;
  1256.       } catch (e) { }
  1257.       return null;
  1258.     };
  1259.  
  1260.     const flagsFn = (EXPERIMENT_FLAGS) => {
  1261.  
  1262.       // console.log(700)
  1263.  
  1264.       if (!EXPERIMENT_FLAGS) return;
  1265.  
  1266.       if (ENABLE_FLAGS_MAINTAIN_STABLE_LIST) {
  1267.         if (USE_MAINTAIN_STABLE_LIST_ONLY_WHEN_KS_FLAG_IS_SET ? EXPERIMENT_FLAGS.kevlar_should_maintain_stable_list === true : true) {
  1268.           // EXPERIMENT_FLAGS.kevlar_tuner_should_test_maintain_stable_list = true; // timestamp toggle issue
  1269.           EXPERIMENT_FLAGS.kevlar_should_maintain_stable_list = true;
  1270.           // console.log(701)
  1271.         }
  1272.       }
  1273.  
  1274.       if (ENABLE_FLAGS_REUSE_COMPONENTS) {
  1275.         EXPERIMENT_FLAGS.kevlar_tuner_should_test_reuse_components = true;
  1276.         EXPERIMENT_FLAGS.kevlar_tuner_should_reuse_components = true;
  1277.         // console.log(702);
  1278.       }
  1279.  
  1280.       if (DISABLE_FLAGS_SHADYDOM_FREE) {
  1281.         EXPERIMENT_FLAGS.enable_shadydom_free_scoped_node_methods = false;
  1282.         EXPERIMENT_FLAGS.enable_shadydom_free_scoped_query_methods = false;
  1283.         EXPERIMENT_FLAGS.enable_shadydom_free_scoped_readonly_properties_batch_one = false;
  1284.         EXPERIMENT_FLAGS.enable_shadydom_free_parent_node = false;
  1285.         EXPERIMENT_FLAGS.enable_shadydom_free_children = false;
  1286.         EXPERIMENT_FLAGS.enable_shadydom_free_last_child = false;
  1287.       }
  1288.  
  1289.     };
  1290.  
  1291.     const uf = (config_) => {
  1292.       config_ = config_ || _config_();
  1293.       if (config_) {
  1294.         const { EXPERIMENT_FLAGS, EXPERIMENTS_FORCED_FLAGS } = config_;
  1295.         if (EXPERIMENT_FLAGS) {
  1296.           flagsFn(EXPERIMENT_FLAGS);
  1297.           if (EXPERIMENTS_FORCED_FLAGS) flagsFn(EXPERIMENTS_FORCED_FLAGS);
  1298.         }
  1299.       }
  1300.     }
  1301.  
  1302.     window._ytConfigHacks.add((config_) => {
  1303.       uf(config_);
  1304.     });
  1305.  
  1306.     uf();
  1307.  
  1308.   })();
  1309.  
  1310.   if (DISABLE_Translation_By_Google) {
  1311.  
  1312.     let mo = new MutationObserver(() => {
  1313.  
  1314.       if (!mo) return;
  1315.       let h = document.head;
  1316.       if (!h) return;
  1317.       mo.disconnect();
  1318.       mo.takeRecords();
  1319.       mo = null;
  1320.  
  1321.       let meta = document.createElement('meta');
  1322.       meta.setAttribute('name', 'google');
  1323.       meta.setAttribute('content', 'notranslate');
  1324.       h.appendChild(meta);
  1325.  
  1326.  
  1327.     });
  1328.     mo.observe(document, { subtree: true, childList: true });
  1329.   }
  1330.  
  1331.  
  1332.   console.assert(MAX_ITEMS_FOR_TOTAL_DISPLAY > 0 && MAX_ITEMS_FOR_FULL_FLUSH > 0 && MAX_ITEMS_FOR_TOTAL_DISPLAY > MAX_ITEMS_FOR_FULL_FLUSH)
  1333.  
  1334.   let ENABLE_DELAYED_CHAT_OCCURRENCE_CAPABLE = false;
  1335.   const isContainSupport = CSS.supports('contain', 'layout paint style');
  1336.   if (!isContainSupport) {
  1337.     console.warn("Your browser does not support css property 'contain'.\nPlease upgrade to the latest version.".trim());
  1338.   } else {
  1339.     ENABLE_DELAYED_CHAT_OCCURRENCE_CAPABLE = true;
  1340.   }
  1341.  
  1342.   let ENABLE_OVERFLOW_ANCHOR_CAPABLE = false;
  1343.   const isOverflowAnchorSupport = CSS.supports('overflow-anchor', 'auto');
  1344.   if (!isOverflowAnchorSupport) {
  1345.     console.warn("Your browser does not support css property 'overflow-anchor'.\nPlease upgrade to the latest version.".trim());
  1346.   } else {
  1347.     ENABLE_OVERFLOW_ANCHOR_CAPABLE = true;
  1348.   }
  1349.  
  1350.   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.
  1351.  
  1352.   const ENABLE_OVERFLOW_ANCHOR = ENABLE_OVERFLOW_ANCHOR_PREFERRED && ENABLE_OVERFLOW_ANCHOR_CAPABLE && ENABLE_NO_SMOOTH_TRANSFORM;
  1353.   const ENABLE_DELAYED_CHAT_OCCURRENCE = ENABLE_DELAYED_CHAT_OCCURRENCE_PREFERRED && ENABLE_DELAYED_CHAT_OCCURRENCE_CAPABLE && ENABLE_OVERFLOW_ANCHOR && ENABLE_NO_SMOOTH_TRANSFORM && NOT_FIREFOX;
  1354.  
  1355.   let hasTimerModified = null;
  1356.   const DO_CHECK_TICKER_BACKGROUND_OVERRIDED = !!ATTEMPT_ANIMATED_TICKER_BACKGROUND || ENABLE_RAF_HACK_TICKERS;
  1357.  
  1358.   const fxOperator = (proto, propertyName) => {
  1359.     let propertyDescriptorGetter = null;
  1360.     try {
  1361.       propertyDescriptorGetter = Object.getOwnPropertyDescriptor(proto, propertyName).get;
  1362.     } catch (e) { }
  1363.     return typeof propertyDescriptorGetter === 'function' ? (e) => {
  1364.       try {
  1365.  
  1366.         return propertyDescriptorGetter.call(dr(e));
  1367.       } catch (e) { }
  1368.       return e[propertyName];
  1369.     } : (e) => e[propertyName];
  1370.   };
  1371.  
  1372.   const nodeParent = fxOperator(Node.prototype, 'parentNode');
  1373.   // const nFirstElem = fxOperator(HTMLElement.prototype, 'firstElementChild');
  1374.   const nPrevElem = fxOperator(HTMLElement.prototype, 'previousElementSibling');
  1375.   const nNextElem = fxOperator(HTMLElement.prototype, 'nextElementSibling');
  1376.   const nLastElem = fxOperator(HTMLElement.prototype, 'lastElementChild');
  1377.  
  1378.   const groupCollapsed = (text1, text2) => {
  1379.  
  1380.     console.groupCollapsed(`%c${text1}%c${text2}`,
  1381.       "background-color: #010502; color: #6acafe; font-weight: 700; padding: 2px;",
  1382.       "background-color: #010502; color: #6ad9fe; font-weight: 300; padding: 2px;"
  1383.     );
  1384.   }
  1385.  
  1386.   // const microNow = () => performance.now() + (performance.timeOrigin || performance.timing.navigationStart);
  1387.  
  1388.  
  1389.   const EVENT_KEY_ON_REGISTRY_READY = "ytI-ce-registry-created";
  1390.   const onRegistryReady = (callback) => {
  1391.     if (typeof customElements === 'undefined') {
  1392.       if (!('__CE_registry' in document)) {
  1393.         // https://github.com/webcomponents/polyfills/
  1394.         Object.defineProperty(document, '__CE_registry', {
  1395.           get() {
  1396.             // return undefined
  1397.           },
  1398.           set(nv) {
  1399.             if (typeof nv == 'object') {
  1400.               delete this.__CE_registry;
  1401.               this.__CE_registry = nv;
  1402.               this.dispatchEvent(new CustomEvent(EVENT_KEY_ON_REGISTRY_READY));
  1403.             }
  1404.             return true;
  1405.           },
  1406.           enumerable: false,
  1407.           configurable: true
  1408.         })
  1409.       }
  1410.       let eventHandler = (evt) => {
  1411.         document.removeEventListener(EVENT_KEY_ON_REGISTRY_READY, eventHandler, false);
  1412.         const f = callback;
  1413.         callback = null;
  1414.         eventHandler = null;
  1415.         f();
  1416.       };
  1417.       document.addEventListener(EVENT_KEY_ON_REGISTRY_READY, eventHandler, false);
  1418.     } else {
  1419.       callback();
  1420.     }
  1421.   };
  1422.  
  1423.   const promiseForCustomYtElementsReady = new Promise(onRegistryReady);
  1424.  
  1425.   const renderReadyPn = typeof ResizeObserver !== 'undefined' ? (sizingTarget) => {
  1426.  
  1427.     return new Promise(resolve => {
  1428.  
  1429.       let ro = new ResizeObserver(entries => {
  1430.         if (entries && entries.length >= 1) {
  1431.           resolve();
  1432.           ro.disconnect();
  1433.           ro = null;
  1434.         }
  1435.       });
  1436.       ro.observe(sizingTarget);
  1437.  
  1438.  
  1439.  
  1440.     });
  1441.  
  1442.   } : (sizingTarget) => {
  1443.  
  1444.  
  1445.     return new Promise(resolve => {
  1446.  
  1447.       let io = new IntersectionObserver(entries => {
  1448.         if (entries && entries.length >= 1) {
  1449.           resolve();
  1450.           io.disconnect();
  1451.           io = null;
  1452.         }
  1453.       });
  1454.       io.observe(sizingTarget);
  1455.  
  1456.  
  1457.  
  1458.     });
  1459.  
  1460.   };
  1461.  
  1462.   /* globals WeakRef:false */
  1463.  
  1464.   /** @type {(o: Object | null) => WeakRef | null} */
  1465.   const mWeakRef = typeof WeakRef === 'function' ? (o => o ? new WeakRef(o) : null) : (o => o || null);
  1466.  
  1467.   /** @type {(wr: Object | null) => Object | null} */
  1468.   const kRef = (wr => (wr && wr.deref) ? wr.deref() : wr);
  1469.  
  1470.   const getLCRDummy = () => {
  1471.     // direct createElement or createComponent_ will make the emoji rendering crashed. reason TBC
  1472.  
  1473.     return Promise.all([customElements.whenDefined('yt-live-chat-app'), customElements.whenDefined('yt-live-chat-renderer')]).then(async () => {
  1474.  
  1475.       const tag = "yt-live-chat-renderer"
  1476.       let dummy = document.querySelector(tag);
  1477.       if (!dummy) {
  1478.  
  1479.         let mo = null;
  1480.  
  1481.         const ytLiveChatApp = document.querySelector('yt-live-chat-app') || document.createElement('yt-live-chat-app');
  1482.  
  1483.         const lcaProto = getProto(ytLiveChatApp);
  1484.  
  1485.         dummy = await new Promise(resolve => {
  1486.  
  1487.           if (typeof lcaProto.createComponent_ === 'function' && !lcaProto.createComponent99_) {
  1488.  
  1489.             lcaProto.createComponent99_ = lcaProto.createComponent_;
  1490.             lcaProto.createComponent98_ = function (a, b, c) {
  1491.               // (3) ['yt-live-chat-renderer', {…}, true]
  1492.               const r = this.createComponent99_.apply(this, arguments);
  1493.               if (a === 'yt-live-chat-renderer') {
  1494.                 resolve(r);
  1495.               }
  1496.               return r;
  1497.             };
  1498.             lcaProto.createComponent_ = lcaProto.createComponent98_;
  1499.  
  1500.           } else {
  1501.  
  1502.             mo = new MutationObserver(() => {
  1503.               const t = document.querySelector(tag);
  1504.               if (t) {
  1505.                 resolve(t);
  1506.               }
  1507.             });
  1508.             mo.observe(document, { subtree: true, childList: true })
  1509.           }
  1510.  
  1511.         });
  1512.  
  1513.         if (mo) {
  1514.           mo.disconnect();
  1515.           mo.takeRecords();
  1516.           mo = null;
  1517.         }
  1518.  
  1519.         if (lcaProto.createComponent99_ && lcaProto.createComponent_ && lcaProto.createComponent98_ === lcaProto.createComponent_) {
  1520.           lcaProto.createComponent_ = lcaProto.createComponent99_;
  1521.           lcaProto.createComponent99_ = null;
  1522.           lcaProto.createComponent98_ = null;
  1523.         }
  1524.  
  1525.       }
  1526.       return dummy;
  1527.  
  1528.     });
  1529.   }
  1530.  
  1531.   const { addCssManaged } = (() => {
  1532.  
  1533.     const addFontPreRendering = () => {
  1534.  
  1535.       groupCollapsed("YouTube Super Fast Chat", " | Fonts Pre-Rendering");
  1536.  
  1537.       let efsContainer = document.createElement('elzm-fonts');
  1538.       efsContainer.id = 'elzm-fonts-yk75g'
  1539.  
  1540.       const arr = [];
  1541.       let p = document.createElement('elzm-font');
  1542.       arr.push(p);
  1543.  
  1544.       if (ENABLE_FONT_PRE_RENDERING & 1) {
  1545.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1546.  
  1547.           p = document.createElement('elzm-font');
  1548.           p.style.fontWeight = size;
  1549.           arr.push(p);
  1550.         }
  1551.       }
  1552.  
  1553.       if (ENABLE_FONT_PRE_RENDERING & 2) {
  1554.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1555.  
  1556.           p = document.createElement('elzm-font');
  1557.           p.style.fontFamily = 'Roboto';
  1558.           p.style.fontWeight = size;
  1559.           arr.push(p);
  1560.         }
  1561.       }
  1562.  
  1563.       if (ENABLE_FONT_PRE_RENDERING & 4) {
  1564.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1565.  
  1566.           p = document.createElement('elzm-font');
  1567.           p.style.fontFamily = '"YouTube Noto",Roboto,Arial,Helvetica,sans-serif';
  1568.           p.style.fontWeight = size;
  1569.           arr.push(p);
  1570.         }
  1571.       }
  1572.  
  1573.  
  1574.       if (ENABLE_FONT_PRE_RENDERING & 8) {
  1575.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1576.  
  1577.           p = document.createElement('elzm-font');
  1578.           p.style.fontFamily = '"Noto",Roboto,Arial,Helvetica,sans-serif';
  1579.           p.style.fontWeight = size;
  1580.           arr.push(p);
  1581.         }
  1582.       }
  1583.  
  1584.  
  1585.       if (ENABLE_FONT_PRE_RENDERING & 16) {
  1586.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1587.  
  1588.           p = document.createElement('elzm-font');
  1589.           p.style.fontFamily = 'sans-serif';
  1590.           p.style.fontWeight = size;
  1591.           arr.push(p);
  1592.         }
  1593.       }
  1594.  
  1595.       console.log('number of elzm-font elements', arr.length);
  1596.  
  1597.       HTMLElement.prototype.append.apply(efsContainer, arr);
  1598.  
  1599.       (document.body || document.documentElement).appendChild(efsContainer);
  1600.  
  1601.  
  1602.       console.log('elzm-font elements have been added to the page for rendering.');
  1603.  
  1604.       console.groupEnd();
  1605.  
  1606.     }
  1607.  
  1608.     let isCssAdded = false;
  1609.  
  1610.     function addCssElement() {
  1611.       let s = document.createElement('style');
  1612.       s.id = 'ewRvC';
  1613.       return s;
  1614.     }
  1615.  
  1616.     const addCssManaged = () => {
  1617.       if (!isCssAdded && document.documentElement && document.head) {
  1618.         isCssAdded = true;
  1619.         document.head.appendChild(dr(addCssElement())).textContent = addCss();
  1620.         if (ENABLE_FONT_PRE_RENDERING) {
  1621.           Promise.resolve().then(addFontPreRendering)
  1622.         }
  1623.       }
  1624.     }
  1625.  
  1626.     return { addCssManaged };
  1627.   })();
  1628.  
  1629.  
  1630.   const { setupStyle } = (() => {
  1631.  
  1632.     const sp7 = Symbol();
  1633.  
  1634.     const proxyHelperFn = (dummy) => ({
  1635.  
  1636.       get(target, prop) {
  1637.         return (prop in dummy) ? dummy[prop] : prop === sp7 ? target : target[prop];
  1638.       },
  1639.       set(target, prop, value) {
  1640.         if (!(prop in dummy)) {
  1641.           target[prop] = value;
  1642.         }
  1643.         return true;
  1644.       },
  1645.       has(target, prop) {
  1646.         return (prop in target);
  1647.       },
  1648.       deleteProperty(target, prop) {
  1649.         return true;
  1650.       },
  1651.       ownKeys(target) {
  1652.         return Object.keys(target);
  1653.       },
  1654.       defineProperty(target, key, descriptor) {
  1655.         return Object.defineProperty(target, key, descriptor);
  1656.       },
  1657.       getOwnPropertyDescriptor(target, key) {
  1658.         return Object.getOwnPropertyDescriptor(target, key);
  1659.       },
  1660.  
  1661.     });
  1662.  
  1663.     const setupStyle = (m1, m2) => {
  1664.       if (!ENABLE_NO_SMOOTH_TRANSFORM) return;
  1665.  
  1666.       const dummy1v = {
  1667.         transform: '',
  1668.         height: '',
  1669.         minHeight: '',
  1670.         paddingBottom: '',
  1671.         paddingTop: ''
  1672.       };
  1673.  
  1674.       const dummyStyleFn = (k) => (function () { const style = this[sp7]; return style[k](...arguments); });
  1675.       for (const k of ['toString', 'getPropertyPriority', 'getPropertyValue', 'item', 'removeProperty', 'setProperty']) {
  1676.         dummy1v[k] = dummyStyleFn(k);
  1677.       }
  1678.  
  1679.       const dummy1p = proxyHelperFn(dummy1v);
  1680.       const sp1v = new Proxy(m1.style, dummy1p);
  1681.       const sp2v = new Proxy(m2.style, dummy1p);
  1682.       Object.defineProperty(m1, 'style', { get() { return sp1v }, set() { }, enumerable: true, configurable: true });
  1683.       Object.defineProperty(m2, 'style', { get() { return sp2v }, set() { }, enumerable: true, configurable: true });
  1684.       m1.removeAttribute("style");
  1685.       m2.removeAttribute("style");
  1686.  
  1687.     }
  1688.  
  1689.     return { setupStyle };
  1690.  
  1691.   })();
  1692.  
  1693.  
  1694.  
  1695.   function setThumbnails(config) {
  1696.  
  1697.     const { baseObject, thumbnails, flag0, imageLinks } = config;
  1698.  
  1699.     if (flag0 || (ENABLE_PRELOAD_THUMBNAIL && imageLinks)) {
  1700.  
  1701.  
  1702.       if (thumbnails && thumbnails.length > 0) {
  1703.         if (flag0 > 0 && thumbnails.length > 1) {
  1704.           let pSize = 0;
  1705.           let newThumbnails = [];
  1706.           for (const thumbnail of thumbnails) {
  1707.             if (!thumbnail || !thumbnail.url) continue;
  1708.             const squarePhoto = thumbnail.width === thumbnail.height && typeof thumbnail.width === 'number';
  1709.             const condSize = pSize <= 0 || (flag0 === 1 ? pSize > thumbnail.width : pSize < thumbnail.width);
  1710.             const leastSizeFulfilled = squarePhoto ? thumbnail.width >= LEAST_IMAGE_SIZE : true;
  1711.             if ((!squarePhoto || condSize) && leastSizeFulfilled) {
  1712.               newThumbnails.push(thumbnail);
  1713.               if (imageLinks) imageLinks.add(thumbnail.url);
  1714.             }
  1715.             if (squarePhoto && condSize && leastSizeFulfilled) {
  1716.               pSize = thumbnail.width;
  1717.             }
  1718.           }
  1719.           if (thumbnails.length !== newThumbnails.length && thumbnails === baseObject.thumbnails && newThumbnails.length > 0) {
  1720.             baseObject.thumbnails = newThumbnails;
  1721.           } else {
  1722.             newThumbnails.length = 0;
  1723.           }
  1724.           newThumbnails = null;
  1725.         } else {
  1726.           for (const thumbnail of thumbnails) {
  1727.             if (thumbnail && thumbnail.url) {
  1728.               if (imageLinks) imageLinks.add(thumbnail.url);
  1729.             }
  1730.           }
  1731.         }
  1732.       }
  1733.  
  1734.     }
  1735.   }
  1736.  
  1737.   function fixLiveChatItem(item, imageLinks) {
  1738.     const liveChatTextMessageRenderer = (item || 0).liveChatTextMessageRenderer || 0;
  1739.     if (liveChatTextMessageRenderer) {
  1740.       const messageRuns = (liveChatTextMessageRenderer.message || 0).runs || 0;
  1741.       if (messageRuns && messageRuns.length > 0) {
  1742.         for (const run of messageRuns) {
  1743.           const emojiImage = (((run || 0).emoji || 0).image || 0);
  1744.           setThumbnails({
  1745.             baseObject: emojiImage,
  1746.             thumbnails: emojiImage.thumbnails,
  1747.             flag0: EMOJI_IMAGE_SINGLE_THUMBNAIL,
  1748.             imageLinks
  1749.           });
  1750.         }
  1751.       }
  1752.       const authorPhoto = liveChatTextMessageRenderer.authorPhoto || 0;
  1753.       setThumbnails({
  1754.         baseObject: authorPhoto,
  1755.         thumbnails: authorPhoto.thumbnails,
  1756.         flag0: AUTHOR_PHOTO_SINGLE_THUMBNAIL,
  1757.         imageLinks
  1758.       });
  1759.     }
  1760.   }
  1761.  
  1762.  
  1763.  
  1764.   let kptPF = null;
  1765.   const emojiPrefetched = new Set();
  1766.   const authorPhotoPrefetched = new Set();
  1767.  
  1768.   function linker(link, rel, href, _as) {
  1769.     return new Promise(resolve => {
  1770.       if (!link) link = document.createElement('link');
  1771.       link.rel = rel;
  1772.       if (_as) link.setAttribute('as', _as);
  1773.       link.onload = function () {
  1774.         resolve({
  1775.           link: this,
  1776.           success: true
  1777.         })
  1778.         this.remove();
  1779.       };
  1780.       link.onerror = function () {
  1781.         resolve({
  1782.           link: this,
  1783.           success: false
  1784.         });
  1785.         this.remove();
  1786.       };
  1787.       link.href = href;
  1788.       document.head.appendChild(link);
  1789.       link = null;
  1790.     });
  1791.   }
  1792.  
  1793.  
  1794.  
  1795.   const cleanContext = async (win) => {
  1796.     const waitFn = requestAnimationFrame; // shall have been binded to window
  1797.     try {
  1798.       let mx = 16; // MAX TRIAL
  1799.       const frameId = 'vanillajs-iframe-v1';
  1800.       /** @type {HTMLIFrameElement | null} */
  1801.       let frame = document.getElementById(frameId);
  1802.       let removeIframeFn = null;
  1803.       if (!frame) {
  1804.         frame = document.createElement('iframe');
  1805.         frame.id = frameId;
  1806.         const blobURL = typeof webkitCancelAnimationFrame === 'function' ? (frame.src = URL.createObjectURL(new Blob([], { type: 'text/html' }))) : null; // avoid Brave Crash
  1807.         frame.sandbox = 'allow-same-origin'; // script cannot be run inside iframe but API can be obtained from iframe
  1808.         let n = document.createElement('noscript'); // wrap into NOSCRPIT to avoid reflow (layouting)
  1809.         n.appendChild(frame);
  1810.         while (!document.documentElement && mx-- > 0) await new Promise(waitFn); // requestAnimationFrame here could get modified by YouTube engine
  1811.         const root = document.documentElement;
  1812.         root.appendChild(n); // throw error if root is null due to exceeding MAX TRIAL
  1813.         if (blobURL) Promise.resolve().then(() => URL.revokeObjectURL(blobURL));
  1814.  
  1815.         removeIframeFn = (setTimeout) => {
  1816.           const removeIframeOnDocumentReady = (e) => {
  1817.             e && win.removeEventListener("DOMContentLoaded", removeIframeOnDocumentReady, false);
  1818.             e = n;
  1819.             n = win = removeIframeFn = 0;
  1820.             setTimeout ? setTimeout(() => e.remove(), 200) : e.remove();
  1821.           }
  1822.           if (!setTimeout || document.readyState !== 'loading') {
  1823.             removeIframeOnDocumentReady();
  1824.           } else {
  1825.             win.addEventListener("DOMContentLoaded", removeIframeOnDocumentReady, false);
  1826.           }
  1827.         }
  1828.       }
  1829.       while (!frame.contentWindow && mx-- > 0) await new Promise(waitFn);
  1830.       const fc = frame.contentWindow;
  1831.       if (!fc) throw "window is not found."; // throw error if root is null due to exceeding MAX TRIAL
  1832.       try {
  1833.         const { requestAnimationFrame, setTimeout, cancelAnimationFrame, setInterval, clearInterval, getComputedStyle } = fc;
  1834.         const res = { requestAnimationFrame, setTimeout, cancelAnimationFrame, setInterval, clearInterval, getComputedStyle };
  1835.         for (let k in res) res[k] = res[k].bind(win); // necessary
  1836.         if (removeIframeFn) Promise.resolve(res.setTimeout).then(removeIframeFn);
  1837.  
  1838.         /** @type {HTMLElement} */
  1839.         const HTMLElementProto = fc.HTMLElement.prototype;
  1840.         /** @type {EventTarget} */
  1841.         const EventTargetProto = fc.EventTarget.prototype;
  1842.         // jsonParseFix = {
  1843.         //   _JSON: fc.JSON, _parse: fc.JSON.parse
  1844.         // }
  1845.         return {
  1846.           ...res,
  1847.           animate: HTMLElementProto.animate,
  1848.           addEventListener: EventTargetProto.addEventListener,
  1849.           removeEventListener: EventTargetProto.removeEventListener
  1850.         };
  1851.       } catch (e) {
  1852.         if (removeIframeFn) removeIframeFn();
  1853.         return null;
  1854.       }
  1855.     } catch (e) {
  1856.       console.warn(e);
  1857.       return null;
  1858.     }
  1859.   };
  1860.  
  1861.   cleanContext(win).then(__CONTEXT__ => {
  1862.     if (!__CONTEXT__) return null;
  1863.  
  1864.     const { requestAnimationFrame, setTimeout, cancelAnimationFrame, setInterval, clearInterval, animate, getComputedStyle, addEventListener, removeEventListener } = __CONTEXT__;
  1865.  
  1866.     const wmComputedStyle = new WeakMap();
  1867.     const getComputedStyleCached = (elem) => {
  1868.       let cs = wmComputedStyle.get(elem);
  1869.       if (!cs) {
  1870.         cs = getComputedStyle(elem);
  1871.         wmComputedStyle.set(elem, cs);
  1872.       }
  1873.       return cs;
  1874.     }
  1875.  
  1876.     let foregroundPromise = null;
  1877.     const foregroundPromiseFn = () => (foregroundPromise = (foregroundPromise || new Promise(resolve => {
  1878.       requestAnimationFrame(() => {
  1879.         foregroundPromise = null;
  1880.         resolve();
  1881.       });
  1882.     })));
  1883.  
  1884.     let playerState = null;
  1885.     let _playerState = null;
  1886.     let lastPlayerProgress = null;
  1887.     let relayCount = 0;
  1888.     let playerEventsByIframeRelay = false;
  1889.     let isPlayProgressTriggered = false;
  1890.     let waitForInitialDataCompletion = 0;
  1891.  
  1892.  
  1893.  
  1894.     let aeConstructor = null;
  1895.  
  1896.     // << __openedChanged82 >>
  1897.     let currentMenuPivotWR = null;
  1898.  
  1899.     // << if DO_PARTICIPANT_LIST_HACKS >>
  1900.     const beforeParticipantsMap = new WeakMap();
  1901.     // << end >>
  1902.  
  1903.  
  1904.  
  1905.     // << if onRegistryReadyForDOMOperations >>
  1906.  
  1907.     let dt0 = Date.now() - 2000;
  1908.     const dateNow = () => Date.now() - dt0;
  1909.     // let lastScroll = 0;
  1910.     // let lastLShow = 0;
  1911.     let lastWheel = 0;
  1912.     let lastMouseDown = 0;
  1913.     let lastMouseUp = 0;
  1914.     let currentMouseDown = false;
  1915.     let lastTouchDown = 0;
  1916.     let lastTouchUp = 0;
  1917.     let currentTouchDown = false;
  1918.     let lastUserInteraction = 0;
  1919.  
  1920.     let scrollChatFn = null;
  1921.  
  1922.     let skipDontRender = true; // true first; false by flushActiveItems_
  1923.     let allowDontRender = null;
  1924.  
  1925.     // ---- #items mutation ----
  1926.     let sk35zResolveFn = null;
  1927.     let firstList = true;
  1928.  
  1929.     // << end >>
  1930.  
  1931.     class RAFHub {
  1932.       constructor() {
  1933.         /** @type {number} */
  1934.         this.startAt = 8170;
  1935.         /** @type {number} */
  1936.         this.counter = 0;
  1937.         /** @type {number} */
  1938.         this.rid = 0;
  1939.         /** @type {Map<number, FrameRequestCallback>} */
  1940.         this.funcs = new Map();
  1941.         const funcs = this.funcs;
  1942.         /** @type {FrameRequestCallback} */
  1943.         this.bCallback = this.mCallback.bind(this);
  1944.         this.pClear = () => funcs.clear();
  1945.         this.keepRAF = false;
  1946.       }
  1947.       /** @param {DOMHighResTimeStamp} highResTime */
  1948.       mCallback(highResTime) {
  1949.         this.rid = 0;
  1950.         Promise.resolve().then(this.pClear);
  1951.         this.funcs.forEach(func => Promise.resolve(highResTime).then(func).catch(console.warn));
  1952.       }
  1953.       /** @param {FrameRequestCallback} f */
  1954.       request(f) {
  1955.         if (this.counter > 1e9) this.counter = 9;
  1956.         let cid = this.startAt + (++this.counter);
  1957.         this.funcs.set(cid, f);
  1958.         if (this.rid === 0) this.rid = requestAnimationFrame(this.bCallback);
  1959.         return cid;
  1960.       }
  1961.       /** @param {number} cid */
  1962.       cancel(cid) {
  1963.         cid = +cid;
  1964.         if (cid > 0) {
  1965.           if (cid <= this.startAt) {
  1966.             return cancelAnimationFrame(cid);
  1967.           }
  1968.           if (this.rid > 0) {
  1969.             this.funcs.delete(cid);
  1970.             if (this.funcs.size === 0 && !this.keepRAF) {
  1971.               cancelAnimationFrame(this.rid);
  1972.               this.rid = 0;
  1973.             }
  1974.           }
  1975.         }
  1976.       }
  1977.     }
  1978.  
  1979.     function basePrefetching() {
  1980.  
  1981.       new Promise(resolve => {
  1982.  
  1983.         if (document.readyState !== 'loading') {
  1984.           resolve();
  1985.         } else {
  1986.           win.addEventListener("DOMContentLoaded", resolve, false);
  1987.         }
  1988.  
  1989.       }).then(() => {
  1990.         const hostL1 = [
  1991.           'https://www.youtube.com', 'https://googlevideo.com',
  1992.           'https://googleapis.com', 'https://accounts.youtube.com',
  1993.           'https://www.gstatic.com', 'https://ggpht.com',
  1994.           'https://yt3.ggpht.com', 'https://yt4.ggpht.com'
  1995.         ];
  1996.  
  1997.         const hostL2 = [
  1998.           'https://youtube.com',
  1999.           'https://fonts.googleapis.com', 'https://fonts.gstatic.com'
  2000.         ];
  2001.  
  2002.         let link = null;
  2003.  
  2004.         function kn() {
  2005.  
  2006.           link = document.createElement('link');
  2007.           if (link.relList && link.relList.supports) {
  2008.             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)
  2009.           } else {
  2010.             kptPF = 0;
  2011.           }
  2012.  
  2013.           groupCollapsed("YouTube Super Fast Chat", " | PREFETCH SUPPORTS");
  2014.           if (ENABLE_BASE_PREFETCHING) console.log('dns-prefetch', (kptPF & 1) ? 'OK' : 'NG');
  2015.           if (ENABLE_BASE_PREFETCHING) console.log('preconnect', (kptPF & 2) ? 'OK' : 'NG');
  2016.           if (ENABLE_PRELOAD_THUMBNAIL) console.log('prefetch', (kptPF & 4) ? 'OK' : 'NG');
  2017.           // console.log('subresource', (kptPF & 8) ? 'OK' : 'NG');
  2018.           if (ENABLE_PRELOAD_THUMBNAIL) console.log('preload', (kptPF & 16) ? 'OK' : 'NG');
  2019.           console.groupEnd();
  2020.  
  2021.         }
  2022.  
  2023.         for (const h of hostL1) {
  2024.  
  2025.           if (kptPF === null) kn();
  2026.           if (ENABLE_BASE_PREFETCHING) {
  2027.             // if (kptPF & 1) {
  2028.             //   linker(link, 'dns-prefetch', h);
  2029.             //   link = null;
  2030.             // }
  2031.             if (kptPF & 2) {
  2032.               linker(link, 'preconnect', h);
  2033.               link = null;
  2034.             }
  2035.           }
  2036.         }
  2037.  
  2038.         for (const h of hostL2) {
  2039.           if (kptPF === null) kn();
  2040.           if (ENABLE_BASE_PREFETCHING) {
  2041.             if (kptPF & 1) {
  2042.               linker(link, 'dns-prefetch', h);
  2043.               link = null;
  2044.             }
  2045.           }
  2046.         }
  2047.  
  2048.       })
  2049.  
  2050.  
  2051.     }
  2052.  
  2053.     if (DO_LINK_PREFETCH) basePrefetching();
  2054.  
  2055.     const { notifyPath7081 } = (() => {
  2056.       // DO_PARTICIPANT_LIST_HACKS
  2057.  
  2058.       const mutexParticipants = new Mutex();
  2059.  
  2060.       let uvid = 0;
  2061.       let r95dm = 0;
  2062.       let c95dm = -1;
  2063.  
  2064.       const foundMap = (base, content) => {
  2065.         /*
  2066.           let lastSearch = 0;
  2067.           let founds = base.map(baseEntry => {
  2068.             let search = content.indexOf(baseEntry, lastSearch);
  2069.             if (search < 0) return false;
  2070.             lastSearch = search + 1;
  2071.             return true;
  2072.           });
  2073.           return founds;
  2074.         */
  2075.         const contentSet = new Set(content);
  2076.         return base.map(baseEntry => contentSet.has(baseEntry));
  2077.  
  2078.       }
  2079.  
  2080.  
  2081.  
  2082.       const spliceIndicesFunc = (beforeParticipants, participants, idsBefore, idsAfter) => {
  2083.  
  2084.         const handler1 = {
  2085.           get(target, prop, receiver) {
  2086.             if (prop === 'object') {
  2087.               return participants; // avoid memory leakage
  2088.             }
  2089.             if (prop === 'type') {
  2090.               return 'splice';
  2091.             }
  2092.             if (prop === '__proxy312__') return 1;
  2093.             return target[prop];
  2094.           }
  2095.         };
  2096.         const releaser = () => {
  2097.           participants = null;
  2098.         }
  2099.  
  2100.         let foundsForAfter = foundMap(idsAfter, idsBefore);
  2101.         let foundsForBefore = foundMap(idsBefore, idsAfter);
  2102.  
  2103.         let indexSplices = [];
  2104.         let contentUpdates = [];
  2105.         for (let i = 0, j = 0; i < foundsForBefore.length || j < foundsForAfter.length;) {
  2106.           if (beforeParticipants[i] === participants[j]) {
  2107.             i++; j++;
  2108.           } else if (idsBefore[i] === idsAfter[j]) {
  2109.             // content changed
  2110.             contentUpdates.push({ indexI: i, indexJ: j })
  2111.             i++; j++;
  2112.           } else {
  2113.             let addedCount = 0;
  2114.             for (let q = j; q < foundsForAfter.length; q++) {
  2115.               if (foundsForAfter[q] === false) addedCount++;
  2116.               else break;
  2117.             }
  2118.             let removedCount = 0;
  2119.             for (let q = i; q < foundsForBefore.length; q++) {
  2120.               if (foundsForBefore[q] === false) removedCount++;
  2121.               else break;
  2122.             }
  2123.             if (!addedCount && !removedCount) {
  2124.               throw 'ERROR(0xFF32): spliceIndicesFunc';
  2125.             }
  2126.             indexSplices.push(new Proxy({
  2127.               index: j,
  2128.               addedCount: addedCount,
  2129.               removed: removedCount >= 1 ? beforeParticipants.slice(i, i + removedCount) : []
  2130.             }, handler1));
  2131.             i += removedCount;
  2132.             j += addedCount;
  2133.           }
  2134.         }
  2135.         foundsForBefore = null;
  2136.         foundsForAfter = null;
  2137.         idsBefore = null;
  2138.         idsAfter = null;
  2139.         beforeParticipants = null;
  2140.         return { indexSplices, contentUpdates, releaser };
  2141.  
  2142.       }
  2143.  
  2144.       /*
  2145.  
  2146.       customElements.get("yt-live-chat-participant-renderer").prototype.notifyPath=function(){  console.log(123);  console.log(new Error().stack)}
  2147.  
  2148.       VM63631:1 Error
  2149.       at customElements.get.notifyPath (<anonymous>:1:122)
  2150.       at e.forwardRendererStamperChanges_ (live_chat_polymer.js:4453:35)
  2151.       at e.rendererStamperApplyChangeRecord_ (live_chat_polymer.js:4451:12)
  2152.       at e.rendererStamperObserver_ (live_chat_polymer.js:4448:149)
  2153.       at Object.pu [as fn] (live_chat_polymer.js:1692:118)
  2154.       at ju (live_chat_polymer.js:1674:217)
  2155.       at a._propertiesChanged (live_chat_polymer.js:1726:122)
  2156.       at b._flushProperties (live_chat_polymer.js:1597:200)
  2157.       at a._invalidateProperties (live_chat_polymer.js:1718:69)
  2158.       at a.notifyPath (live_chat_polymer.js:1741:182)
  2159.  
  2160.       */
  2161.  
  2162.       function convertToIds(participants) {
  2163.         return participants.map(participant => {
  2164.           if (!participant || typeof participant !== 'object') {
  2165.             console.warn('Error(0xFA41): convertToIds', participant);
  2166.             return participant; // just in case
  2167.           }
  2168.           let keys = Object.keys(participant);
  2169.           // liveChatTextMessageRenderer
  2170.           // liveChatParticipantRenderer - livestream channel owner [no authorExternalChannelId]
  2171.           // liveChatPaidMessageRenderer
  2172.           /*
  2173.  
  2174.             'yt-live-chat-participant-renderer' utilizes the following:
  2175.             authorName.simpleText: string
  2176.             authorPhoto.thumbnails: Object{url:string, width:int, height:int} []
  2177.             authorBadges[].liveChatAuthorBadgeRenderer.icon.iconType: string
  2178.             authorBadges[].liveChatAuthorBadgeRenderer.tooltip: string
  2179.             authorBadges[].liveChatAuthorBadgeRenderer.accessibility.accessibilityData: Object{label:string}
  2180.  
  2181.           */
  2182.           if (keys.length !== 1) {
  2183.             console.warn('Error(0xFA42): convertToIds', participant);
  2184.             return participant; // just in case
  2185.           }
  2186.           let key = keys[0];
  2187.           let renderer = (participant[key] || 0);
  2188.           let authorName = (renderer.authorName || 0);
  2189.           let text = `${authorName.simpleText || authorName.text}`
  2190.           let res = participant; // fallback if it is not a vaild entry
  2191.           if (typeof text !== 'string') {
  2192.             console.warn('Error(0xFA53): convertToIds', participant);
  2193.           } else {
  2194.             text = `${renderer.authorExternalChannelId || 'null'}|${text || ''}`;
  2195.             if (text.length > 1) res = text;
  2196.           }
  2197.           return res;
  2198.           // return renderer?`${renderer.id}|${renderer.authorExternalChannelId}`: '';
  2199.           // note: renderer.id will be changed if the user typed something to trigger the update of the participants' record.
  2200.         });
  2201.       }
  2202.  
  2203.       const checkChangeToParticipantRendererContent = CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT ? (p1, p2) => {
  2204.         // just update when content is changed.
  2205.         if (p1.authorName !== p2.authorName) return true;
  2206.         if (p1.authorPhoto !== p2.authorPhoto) return true;
  2207.         if (p1.authorBadges !== p2.authorBadges) return true;
  2208.         return false;
  2209.       } : (p1, p2) => {
  2210.         // keep integrity all the time.
  2211.         return p1 !== p2; // always true
  2212.       }
  2213.  
  2214.       function notifyPath7081(path) { // cnt "yt-live-chat-participant-list-renderer"
  2215.  
  2216.         if (PARTICIPANT_UPDATE_ONLY_ONLY_IF_MODIFICATION_DETECTED) {
  2217.           if (path !== "participantsManager.participants") {
  2218.             return this.__notifyPath5036__.apply(this, arguments);
  2219.           }
  2220.           if (c95dm === r95dm) return;
  2221.         } else {
  2222.           const stack = new Error().stack;
  2223.           if (path !== "participantsManager.participants" || stack.indexOf('.onParticipantsChanged') < 0) {
  2224.             return this.__notifyPath5036__.apply(this, arguments);
  2225.           }
  2226.         }
  2227.  
  2228.         if (uvid > 1e8) uvid = uvid % 100;
  2229.         let tid = ++uvid;
  2230.  
  2231.         const cnt = this; // "yt-live-chat-participant-list-renderer"
  2232.         mutexParticipants.lockWith(lockResolve => {
  2233.  
  2234.           const participants00 = cnt.participantsManager.participants;
  2235.  
  2236.           if (tid !== uvid || typeof (participants00 || 0).splice !== 'function') {
  2237.             lockResolve();
  2238.             return;
  2239.           }
  2240.  
  2241.           let doUpdate = false;
  2242.  
  2243.           if (PARTICIPANT_UPDATE_ONLY_ONLY_IF_MODIFICATION_DETECTED) {
  2244.  
  2245.             if (!participants00.r94dm) {
  2246.               participants00.r94dm = 1;
  2247.               if (++r95dm > 1e9) r95dm = 9;
  2248.               participants00.push = function () {
  2249.                 if (++r95dm > 1e9) r95dm = 9;
  2250.                 return Array.prototype.push.apply(this, arguments);
  2251.               }
  2252.               participants00.pop = function () {
  2253.                 if (++r95dm > 1e9) r95dm = 9;
  2254.                 return Array.prototype.pop.apply(this, arguments);
  2255.               }
  2256.               participants00.shift = function () {
  2257.                 if (++r95dm > 1e9) r95dm = 9;
  2258.                 return Array.prototype.shift.apply(this, arguments);
  2259.               }
  2260.               participants00.unshift = function () {
  2261.                 if (++r95dm > 1e9) r95dm = 9;
  2262.                 return Array.prototype.unshift.apply(this, arguments);
  2263.               }
  2264.               participants00.splice = function () {
  2265.                 if (++r95dm > 1e9) r95dm = 9;
  2266.                 return Array.prototype.splice.apply(this, arguments);
  2267.               }
  2268.               participants00.sort = function () {
  2269.                 if (++r95dm > 1e9) r95dm = 9;
  2270.                 return Array.prototype.sort.apply(this, arguments);
  2271.               }
  2272.               participants00.reverse = function () {
  2273.                 if (++r95dm > 1e9) r95dm = 9;
  2274.                 return Array.prototype.reverse.apply(this, arguments);
  2275.               }
  2276.             }
  2277.  
  2278.             if (c95dm !== r95dm) {
  2279.               c95dm = r95dm;
  2280.               doUpdate = true;
  2281.             }
  2282.  
  2283.           } else {
  2284.             doUpdate = true;
  2285.           }
  2286.  
  2287.           if (!doUpdate) {
  2288.             lockResolve();
  2289.             return;
  2290.           }
  2291.  
  2292.           const participants = participants00.slice(0);
  2293.           const beforeParticipants = beforeParticipantsMap.get(cnt) || [];
  2294.           beforeParticipantsMap.set(cnt, participants);
  2295.  
  2296.           const resPromise = (async () => {
  2297.  
  2298.             if (beforeParticipants.length === 0) {
  2299.               // not error
  2300.               return 0;
  2301.             }
  2302.  
  2303.             let countOfElements = cnt.__getAllParticipantsDOMRenderedLength__()
  2304.  
  2305.             // console.log(participants.length, doms.length) // different if no requestAnimationFrame
  2306.             if (beforeParticipants.length !== countOfElements) {
  2307.               // there is somewrong for the cache. - sometimes happen
  2308.               return 0;
  2309.             }
  2310.  
  2311.             const idsBefore = convertToIds(beforeParticipants);
  2312.             const idsAfter = convertToIds(participants);
  2313.  
  2314.             let { indexSplices, contentUpdates, releaser } = spliceIndicesFunc(beforeParticipants, participants, idsBefore, idsAfter);
  2315.  
  2316.             let res = 1; // default 1 for no update
  2317.  
  2318.             if (indexSplices.length >= 1) {
  2319.  
  2320.  
  2321.               // let p2 =  participants.slice(indexSplices[0].index, indexSplices[0].index+indexSplices[0].addedCount);
  2322.               // let p1 = indexSplices[0].removed;
  2323.               // console.log(indexSplices.length, indexSplices ,p1,p2,  convertToIds(p1),convertToIds(p2))
  2324.  
  2325.               /* folllow
  2326.                   a.notifyPath(c + ".splices", d);
  2327.                   a.notifyPath(c + ".length", b.length);
  2328.               */
  2329.               // stampDomArraySplices_
  2330.  
  2331.  
  2332.               await new Promise(resolve => {
  2333.                 cnt.resolveForDOMRendering781 = resolve;
  2334.  
  2335.                 cnt.__notifyPath5036__("participantsManager.participants.splices", {
  2336.                   indexSplices
  2337.                 });
  2338.                 indexSplices = null;
  2339.                 releaser();
  2340.                 releaser = null;
  2341.                 cnt.__notifyPath5036__("participantsManager.participants.length",
  2342.                   participants.length
  2343.                 );
  2344.  
  2345.               });
  2346.  
  2347.               await Promise.resolve(0); // play safe for the change of 'length'
  2348.               countOfElements = cnt.__getAllParticipantsDOMRenderedLength__();
  2349.  
  2350.               let wrongSize = participants.length !== countOfElements
  2351.               if (wrongSize) {
  2352.                 console.warn("ERROR(0xE2C3): notifyPath7081", beforeParticipants.length, participants.length, doms.length)
  2353.                 return 0;
  2354.               }
  2355.  
  2356.               res = 2 | 4;
  2357.  
  2358.             } else {
  2359.  
  2360.               indexSplices = null;
  2361.               releaser();
  2362.               releaser = null;
  2363.  
  2364.               if (participants.length !== countOfElements) {
  2365.                 // other unhandled cases
  2366.                 return 0;
  2367.               }
  2368.  
  2369.             }
  2370.  
  2371.             // participants.length === countOfElements before contentUpdates
  2372.             if (contentUpdates.length >= 1) {
  2373.               for (const contentUpdate of contentUpdates) {
  2374.                 let isChanged = checkChangeToParticipantRendererContent(beforeParticipants[contentUpdate.indexI], participants[contentUpdate.indexJ]);
  2375.                 if (isChanged) {
  2376.                   cnt.__notifyPath5036__(`participantsManager.participants[${contentUpdate.indexJ}]`);
  2377.                   res |= 4 | 8;
  2378.                 }
  2379.               }
  2380.             }
  2381.             contentUpdates = null;
  2382.  
  2383.             return res;
  2384.  
  2385.  
  2386.           })();
  2387.  
  2388.  
  2389.           resPromise.then(resValue => {
  2390.  
  2391.             const isLogRequired = SHOW_PARTICIPANT_CHANGES_IN_CONSOLE && ((resValue === 0) || ((resValue & 4) === 4));
  2392.             isLogRequired && groupCollapsed("Participant List Change", `tid = ${tid}; res = ${resValue}`);
  2393.             if (resValue === 0) {
  2394.               new Promise(resolve => {
  2395.                 cnt.resolveForDOMRendering781 = resolve;
  2396.                 isLogRequired && console.log("Full Refresh begins");
  2397.                 cnt.__notifyPath5036__("participantsManager.participants"); // full refresh
  2398.               }).then(() => {
  2399.                 isLogRequired && console.log("Full Refresh ends");
  2400.                 console.groupEnd();
  2401.               }).then(lockResolve);
  2402.               return;
  2403.             }
  2404.  
  2405.             const delayLockResolve = (resValue & 4) === 4;
  2406.  
  2407.             if (delayLockResolve) {
  2408.               isLogRequired && console.log(`Number of participants (before): ${beforeParticipants.length}`);
  2409.               isLogRequired && console.log(`Number of participants (after): ${participants.length}`);
  2410.               isLogRequired && console.log(`Total number of rendered participants: ${cnt.__getAllParticipantsDOMRenderedLength__()}`);
  2411.               isLogRequired && console.log(`Participant Renderer Content Updated: ${(resValue & 8) === 8}`);
  2412.               isLogRequired && console.groupEnd();
  2413.               // requestAnimationFrame is required to avoid particiant update during DOM changing (stampDomArraySplices_)
  2414.               // mutex lock with requestAnimationFrame can also disable participants update in background
  2415.               requestAnimationFrame(lockResolve);
  2416.             } else {
  2417.               lockResolve();
  2418.             }
  2419.  
  2420.           });
  2421.  
  2422.         });
  2423.  
  2424.       }
  2425.  
  2426.       return { notifyPath7081 };
  2427.  
  2428.     })();
  2429.  
  2430.     const whenDefinedMultiple = async (tags) => {
  2431.  
  2432.       const sTags = [...new Set(tags)];
  2433.       const len = sTags.length;
  2434.  
  2435.       const pTags = new Array(len);
  2436.       for (let i = 0; i < len; i++) {
  2437.         pTags[i] = customElements.whenDefined(sTags[i]);
  2438.       }
  2439.  
  2440.       await Promise.all(pTags);
  2441.       pTags.length = 0;
  2442.  
  2443.       return sTags;
  2444.  
  2445.     }
  2446.  
  2447.     const onRegistryReadyForDataManipulation = () => {
  2448.  
  2449.       function dummy5035(a, b, c) { }
  2450.       function dummy411(a, b, c) { }
  2451.  
  2452.  
  2453.  
  2454.       customElements.whenDefined("yt-live-chat-participant-list-renderer").then(() => {
  2455.  
  2456.         if (!DO_PARTICIPANT_LIST_HACKS) return;
  2457.  
  2458.         const tag = "yt-live-chat-participant-list-renderer";
  2459.         const cProto = getProto(document.createElement(tag));
  2460.         if (!cProto || typeof cProto.attached !== 'function') {
  2461.           // for _registered, proto.attached shall exist when the element is defined.
  2462.           // for controller extraction, attached shall exist when instance creates.
  2463.           console.warn(`proto.attached for ${tag} is unavailable.`);
  2464.           return;
  2465.         }
  2466.  
  2467.  
  2468.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-participant-list-renderer hacks");
  2469.  
  2470.         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'];
  2471.         const fgs = {};
  2472.         for (const key of fgsArr) fgs[key] = undefined;
  2473.  
  2474.         try {
  2475.           const EXPERIMENT_FLAGS = ytcfg.data_.EXPERIMENT_FLAGS;
  2476.           for (const key of fgsArr) fgs[key] = EXPERIMENT_FLAGS[key];
  2477.         } catch (e) { }
  2478.         console.log(`EXPERIMENT_FLAGS: ${JSON.stringify(fgs, null, 2)}`);
  2479.  
  2480.         const canDoReplacement = (() => {
  2481.           if (typeof cProto.__notifyPath5035__ === 'function' && cProto.__notifyPath5035__.name !== 'dummy5035') {
  2482.             console.warn('YouTube Live Chat Tamer is running.');
  2483.             return;
  2484.           }
  2485.  
  2486.           if (typeof cProto.__attached411__ === 'function' && cProto.__attached411__.name !== 'dummy411') {
  2487.             console.warn('YouTube Live Chat Tamer is running.');
  2488.             return;
  2489.           }
  2490.  
  2491.           cProto.__notifyPath5035__ = dummy5035 // just to against Live Chat Tamer
  2492.           cProto.__attached411__ = dummy411 // just to against Live Chat Tamer
  2493.  
  2494.           if (typeof cProto.flushRenderStamperComponentBindings_ !== 'function' || cProto.flushRenderStamperComponentBindings_.length !== 0) {
  2495.             console.warn("ERROR(0xE355): cProto.flushRenderStamperComponentBindings_ not found");
  2496.             return;
  2497.           }
  2498.  
  2499.           if (typeof cProto.flushRenderStamperComponentBindings66_ === 'function') {
  2500.             console.warn("ERROR(0xE356): cProto.flushRenderStamperComponentBindings66_");
  2501.             return;
  2502.           }
  2503.  
  2504.           if (typeof cProto.__getAllParticipantsDOMRenderedLength__ === 'function') {
  2505.             console.warn("ERROR(0xE357): cProto.__getAllParticipantsDOMRenderedLength__");
  2506.             return;
  2507.           }
  2508.           return true;
  2509.         })();
  2510.  
  2511.         console.log(`Data Manipulation Boost = ${canDoReplacement}`);
  2512.  
  2513.         assertor(() => fnIntegrity(cProto.attached, '0.32.22')) // just warning
  2514.         if (typeof cProto.flushRenderStamperComponentBindings_ === 'function') {
  2515.           const fiRSCB = fnIntegrity(cProto.flushRenderStamperComponentBindings_);
  2516.           const s = fiRSCB.split('.');
  2517.           // Feb 2024: 0.403.247 => NG
  2518.           // if (s[0] === '0' && +s[1] > 381 && +s[1] < 391 && +s[2] > 228 && +s[2] < 238) {
  2519.           //   console.log(`flushRenderStamperComponentBindings_ ### ${fiRSCB} ### - OK`);
  2520.           // } else {
  2521.           //   console.log(`flushRenderStamperComponentBindings_ ### ${fiRSCB} ### - NG`);
  2522.           // }
  2523.           console.log(`flushRenderStamperComponentBindings_ ### ${fiRSCB} ###`);
  2524.         } else {
  2525.           console.log("flushRenderStamperComponentBindings_ - not found");
  2526.         }
  2527.         // assertor(() => fnIntegrity(cProto.flushRenderStamperComponentBindings_, '0.386.233')) // just warning
  2528.  
  2529.         if (typeof cProto.flushRenderStamperComponentBindings_ === 'function') {
  2530.           cProto.flushRenderStamperComponentBindings66_ = cProto.flushRenderStamperComponentBindings_;
  2531.           cProto.flushRenderStamperComponentBindings_ = function () {
  2532.             // console.log('flushRenderStamperComponentBindings_')
  2533.             this.flushRenderStamperComponentBindings66_();
  2534.             if (this.resolveForDOMRendering781) {
  2535.               this.resolveForDOMRendering781();
  2536.               this.resolveForDOMRendering781 = null;
  2537.             }
  2538.           };
  2539.         }
  2540.  
  2541.         cProto.__getAllParticipantsDOMRenderedLength__ = function () {
  2542.           const container = ((this || 0).$ || 0).participants;
  2543.           if (!container) return 0;
  2544.           return HTMLElement.prototype.querySelectorAll.call(container, 'yt-live-chat-participant-renderer').length;
  2545.         }
  2546.  
  2547.         const onPageElements = [...document.querySelectorAll('yt-live-chat-participant-list-renderer:not(.n9fJ3)')];
  2548.  
  2549.         cProto.__attached412__ = cProto.attached;
  2550.         const fpPList = function (hostElement) {
  2551.           const cnt = insp(hostElement);
  2552.           if (beforeParticipantsMap.has(cnt)) return;
  2553.           hostElement.classList.add('n9fJ3');
  2554.  
  2555.           assertor(() => (cnt.__dataEnabled === true && cnt.__dataReady === true));
  2556.           if (typeof cnt.notifyPath !== 'function' || typeof cnt.__notifyPath5036__ !== 'undefined') {
  2557.             console.warn("ERROR(0xE318): yt-live-chat-participant-list-renderer")
  2558.             return;
  2559.           }
  2560.  
  2561.           groupCollapsed("Participant List attached", "");
  2562.           // cnt.$.participants.appendChild = cnt.$.participants.__shady_native_appendChild =  function(){
  2563.           //   console.log(123, 'appendChild');
  2564.           //   return HTMLElement.prototype.appendChild.apply(this, arguments)
  2565.           // }
  2566.  
  2567.           // cnt.$.participants.insertBefore =cnt.$.participants.__shady_native_insertBefore =  function(){
  2568.           //   console.log(123, 'insertBefore');
  2569.           //   return HTMLElement.prototype.insertBefore.apply(this, arguments)
  2570.           // }
  2571.  
  2572.           cnt.__notifyPath5036__ = cnt.notifyPath
  2573.           const participants = ((cnt.participantsManager || 0).participants || 0);
  2574.           assertor(() => (participants.length > -1 && typeof participants.slice === 'function'));
  2575.           console.log(`initial number of participants: ${participants.length}`);
  2576.           const newParticipants = (participants.length >= 1 && typeof participants.slice === 'function') ? participants.slice(0) : [];
  2577.           beforeParticipantsMap.set(cnt, newParticipants);
  2578.           cnt.notifyPath = notifyPath7081;
  2579.           console.log(`CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT = ${CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT}`);
  2580.           console.groupEnd();
  2581.         }
  2582.         cProto.attached = function () {
  2583.           fpPList(this.hostElement || this);
  2584.           this.__attached412__.apply(this, arguments);
  2585.         };
  2586.  
  2587.  
  2588.         if (ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST) {
  2589.  
  2590.           /** @type {boolean | (()=>boolean)} */
  2591.           let toUseMaintainStableList = USE_MAINTAIN_STABLE_LIST_ONLY_WHEN_KS_FLAG_IS_SET ? (() => ytcfg.data_.EXPERIMENT_FLAGS.kevlar_should_maintain_stable_list === true) : true;
  2592.           if (typeof cProto.stampDomArray_ === 'function' && cProto.stampDomArray_.length === 6 && !cProto.stampDomArray_.nIegT && !cProto.stampDomArray66_) {
  2593.  
  2594.             let lastMessageDate = 0;
  2595.             cProto.stampDomArray66_ = cProto.stampDomArray_;
  2596.  
  2597.             cProto.stampDomArray_ = function (...args) {
  2598.               if (args[0] && args[0].length > 0 && args[1] === "participants" && args[2] && args[3] === true && !args[5]) {
  2599.                 if (typeof toUseMaintainStableList === 'function') {
  2600.                   toUseMaintainStableList = toUseMaintainStableList();
  2601.                 }
  2602.                 args[5] = toUseMaintainStableList;
  2603.                 let currentDate = Date.now();
  2604.                 if (currentDate - lastMessageDate > 440) {
  2605.                   lastMessageDate = currentDate;
  2606.                   console.log('maintain_stable_list for participants list', toUseMaintainStableList);
  2607.                 }
  2608.               }
  2609.               return this.stampDomArray66_.apply(this, args);
  2610.             }
  2611.  
  2612.             cProto.stampDomArray_.nIegT = 1;
  2613.  
  2614.           }
  2615.           console.log(`ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST - YES`);
  2616.         } else {
  2617.           console.log(`ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST - NO`);
  2618.         }
  2619.  
  2620.         console.groupEnd();
  2621.  
  2622.         if (onPageElements.length >= 1) {
  2623.           for (const s of onPageElements) {
  2624.             if (insp(s).isAttached === true) {
  2625.               fpPList(s);
  2626.             }
  2627.           }
  2628.         }
  2629.  
  2630.       }).catch(console.warn);
  2631.  
  2632.     };
  2633.  
  2634.     if (DO_PARTICIPANT_LIST_HACKS) {
  2635.       promiseForCustomYtElementsReady.then(onRegistryReadyForDataManipulation);
  2636.     }
  2637.  
  2638.  
  2639.  
  2640.     const rafHub = (ENABLE_RAF_HACK_TICKERS || ENABLE_RAF_HACK_DOCKED_MESSAGE || ENABLE_RAF_HACK_INPUT_RENDERER || ENABLE_RAF_HACK_EMOJI_PICKER) ? new RAFHub() : null;
  2641.  
  2642.  
  2643.     const fixChildrenIssue = !!fixChildrenIssue801;
  2644.     if (fixChildrenIssue && typeof Object.getOwnPropertyDescriptor === 'function' && typeof Proxy !== 'undefined') {
  2645.       const divProto = HTMLDivElement.prototype;
  2646.       const polymerControllerSetData3 = function (c, d, e) {
  2647.         return insp(this).set(c, d, e);
  2648.       }
  2649.       const polymerControllerSetData2 = function (c, d) {
  2650.         return insp(this).set(c, d);
  2651.       }
  2652.       const dummyFn = function () {
  2653.         console.log('dummyFn', ...arguments);
  2654.       };
  2655.  
  2656.       const wm44 = new Map();
  2657.       function unPolymerSet(elem) {
  2658.         const is = elem.is;
  2659.         if (is && !elem.set) {
  2660.           let rt = wm44.get(is);
  2661.           if (!rt) {
  2662.             rt = 1;
  2663.             const cnt = insp(elem);
  2664.             if (cnt !== elem && cnt && typeof cnt.set === 'function') {
  2665.               const pcSet = cnt.constructor.prototype.set;
  2666.               if (pcSet && typeof pcSet === 'function' && pcSet.length === 3) {
  2667.                 rt = polymerControllerSetData3;
  2668.               } else if (pcSet && typeof pcSet === 'function' && pcSet.length === 2) {
  2669.                 rt = polymerControllerSetData2;
  2670.               }
  2671.             }
  2672.             wm44.set(is, rt);
  2673.           }
  2674.           if (typeof rt === 'function') {
  2675.             elem.set = rt;
  2676.           } else {
  2677.             elem.set = dummyFn;
  2678.           }
  2679.         }
  2680.       }
  2681.       if (!divProto.__children577__ && !divProto.__children578__) {
  2682.  
  2683.         const dp = Object.getOwnPropertyDescriptor(Element.prototype, 'children');
  2684.         const dp2 = Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'children');
  2685.         const dp3 = Object.getOwnPropertyDescriptor(divProto, 'children');
  2686.  
  2687.         if (dp && dp.configurable === true && dp.enumerable === true && typeof dp.get === 'function' && !dp2 && !dp3) {
  2688.  
  2689.           if (divProto instanceof HTMLElement && divProto instanceof Element) {
  2690.  
  2691.             let m = Object.assign({}, dp);
  2692.             divProto.__children577__ = dp.get;
  2693.             divProto.__children578__ = function () {
  2694.               if (this.__children803__) return this.__children803__;
  2695.               if (this.__children801__) {
  2696.                 let arr = [];
  2697.                 for (let elem = this.firstElementChild; elem !== null; elem = elem.nextElementSibling) {
  2698.                   if (elem.is) {
  2699.                     unPolymerSet(elem);
  2700.                     arr.push(elem);
  2701.                   }
  2702.                 }
  2703.                 if (this.__children801__ === 2) this.__children803__ = arr;
  2704.                 return arr;
  2705.               }
  2706.               return 577;
  2707.             };
  2708.             m.get = function () {
  2709.               const r = this.__children578__();
  2710.               if (r !== 577) return r;
  2711.               return this.__children577__();
  2712.             };
  2713.             Object.defineProperty(divProto, 'children', m);
  2714.  
  2715.             console.log('fixChildrenIssue - set OK')
  2716.  
  2717.           }
  2718.         }
  2719.  
  2720.       }
  2721.  
  2722.  
  2723.     }
  2724.  
  2725.  
  2726.     const bnForDelayChatOccurrence = () => {
  2727.  
  2728.       document.addEventListener('animationstart', (evt) => {
  2729.  
  2730.         if (evt.animationName === 'dontRenderAnimation') {
  2731.           evt.target.classList.remove('dont-render');
  2732.           if (scrollChatFn) scrollChatFn();
  2733.         }
  2734.  
  2735.       }, true);
  2736.  
  2737.       const f = (elm) => {
  2738.         if (elm && elm.nodeType === 1) {
  2739.           if (!skipDontRender && allowDontRender === true) {
  2740.             // innerTextFixFn();
  2741.             elm.classList.add('dont-render');
  2742.           }
  2743.         }
  2744.       }
  2745.  
  2746.       Node.prototype.__appendChild931__ = function (a) {
  2747.         a = dr(a);
  2748.         if (this.id === 'items' && this.classList.contains('yt-live-chat-item-list-renderer')) {
  2749.           if (a && a.nodeType === 1) f(a);
  2750.           else if (a instanceof DocumentFragment) {
  2751.             for (let n = a.firstChild; n; n = n.nextSibling) {
  2752.               f(n);
  2753.             }
  2754.           }
  2755.         }
  2756.       }
  2757.  
  2758.       Node.prototype.__appendChild932__ = function () {
  2759.         this.__appendChild931__.apply(this, arguments);
  2760.         return Node.prototype.appendChild.apply(this, arguments);
  2761.       }
  2762.  
  2763.  
  2764.     };
  2765.  
  2766.     const watchUserCSS = () => {
  2767.  
  2768.       // if (!CSS.supports('contain-intrinsic-size', 'auto var(--wsr94)')) return;
  2769.  
  2770.       const getElemFromWR = (nr) => {
  2771.         const n = kRef(nr);
  2772.         if (n && n.isConnected) return n;
  2773.         return null;
  2774.       }
  2775.  
  2776.       const clearContentVisibilitySizing = () => {
  2777.         Promise.resolve().then(() => {
  2778.  
  2779.           const e = document.querySelector('#show-more[disabled]');
  2780.           let btnShowMoreWR = e ? mWeakRef(e) : null;
  2781.  
  2782.           let lastVisibleItemWR = null;
  2783.           for (const elm of document.querySelectorAll('[wSr93]')) {
  2784.             if (elm.getAttribute('wSr93') === 'visible') lastVisibleItemWR = mWeakRef(elm);
  2785.             elm.setAttribute('wSr93', '');
  2786.             // custom CSS property --wsr94 not working when attribute wSr93 removed
  2787.           }
  2788.           requestAnimationFrame(() => {
  2789.             const btnShowMore = getElemFromWR(btnShowMoreWR); btnShowMoreWR = null;
  2790.             if (btnShowMore) btnShowMore.click();
  2791.             else {
  2792.               // would not work if switch it frequently
  2793.               const lastVisibleItem = getElemFromWR(lastVisibleItemWR); lastVisibleItemWR = null;
  2794.               if (lastVisibleItem) {
  2795.  
  2796.                 Promise.resolve()
  2797.                   .then(() => lastVisibleItem.scrollIntoView())
  2798.                   .then(() => lastVisibleItem.scrollIntoView(false))
  2799.                   .then(() => lastVisibleItem.scrollIntoView({ behavior: "instant", block: "end", inline: "nearest" }))
  2800.                   .catch(e => { }) // break the chain when method not callable
  2801.  
  2802.               }
  2803.             }
  2804.           });
  2805.  
  2806.         });
  2807.  
  2808.       }
  2809.  
  2810.       const mutObserver = new MutationObserver((mutations) => {
  2811.         for (const mutation of mutations) {
  2812.           if ((mutation.addedNodes || 0).length >= 1) {
  2813.             for (const addedNode of mutation.addedNodes) {
  2814.               if (addedNode.nodeName === 'STYLE') {
  2815.                 clearContentVisibilitySizing();
  2816.                 return;
  2817.               }
  2818.             }
  2819.           }
  2820.           if ((mutation.removedNodes || 0).length >= 1) {
  2821.             for (const removedNode of mutation.removedNodes) {
  2822.               if (removedNode.nodeName === 'STYLE') {
  2823.                 clearContentVisibilitySizing();
  2824.                 return;
  2825.               }
  2826.             }
  2827.           }
  2828.         }
  2829.       });
  2830.  
  2831.       mutObserver.observe(document.documentElement, {
  2832.         childList: true,
  2833.         subtree: false
  2834.       });
  2835.       mutObserver.observe(document.head, {
  2836.         childList: true,
  2837.         subtree: false
  2838.       });
  2839.       mutObserver.observe(document.body, {
  2840.         childList: true,
  2841.         subtree: false
  2842.       });
  2843.  
  2844.     }
  2845.  
  2846.  
  2847.     class WillChangeController {
  2848.       constructor(itemScroller, willChangeValue) {
  2849.         this.element = itemScroller;
  2850.         this.counter = 0;
  2851.         this.active = false;
  2852.         this.willChangeValue = willChangeValue;
  2853.       }
  2854.  
  2855.       beforeOper() {
  2856.         if (!this.active) {
  2857.           this.active = true;
  2858.           this.element.style.willChange = this.willChangeValue;
  2859.         }
  2860.         this.counter++;
  2861.       }
  2862.  
  2863.       afterOper() {
  2864.         const c = this.counter;
  2865.         requestAnimationFrame(() => {
  2866.           if (c === this.counter) {
  2867.             this.active = false;
  2868.             this.element.style.willChange = '';
  2869.           }
  2870.         });
  2871.       }
  2872.  
  2873.       release() {
  2874.         const element = this.element;
  2875.         this.element = null;
  2876.         this.counter = 1e16;
  2877.         this.active = false;
  2878.         try {
  2879.           element.style.willChange = '';
  2880.         } catch (e) { }
  2881.       }
  2882.  
  2883.     }
  2884.  
  2885.  
  2886.     const skzData = (skz) => skz.data = {
  2887.       "message": {
  2888.         "runs": [
  2889.           {
  2890.             "text": "em2o"
  2891.           },
  2892.           {
  2893.             "emoji": {
  2894.               "emojiId": "cm35z",
  2895.               "shortcuts": [
  2896.                 ":_s:",
  2897.                 ":s:"
  2898.               ],
  2899.               "searchTerms": [
  2900.                 "_s",
  2901.                 "s"
  2902.               ],
  2903.               "image": {
  2904.                 "thumbnails": [
  2905.                   {
  2906.                     "url": dummyImgURL,
  2907.                     "width": 48,
  2908.                     "height": 48
  2909.                   }
  2910.                 ],
  2911.                 "accessibility": {
  2912.                   "accessibilityData": {
  2913.                     "label": "s"
  2914.                   }
  2915.                 }
  2916.               },
  2917.               "isCustomEmoji": true
  2918.             }
  2919.           },
  2920.           {
  2921.             "text": "ji"
  2922.           }
  2923.         ]
  2924.       },
  2925.       "authorName": {
  2926.         "simpleText": "N"
  2927.       },
  2928.       "authorPhoto": {
  2929.         "thumbnails": [
  2930.           {
  2931.             "url": dummyImgURL,
  2932.             "width": 64,
  2933.             "height": 64
  2934.           }
  2935.         ]
  2936.       },
  2937.       "contextMenuEndpoint": {
  2938.         "commandMetadata": {
  2939.           "webCommandMetadata": {
  2940.             "ignoreNavigation": true
  2941.           }
  2942.         },
  2943.         "liveChatItemContextMenuEndpoint": {
  2944.           "params": "123=="
  2945.         }
  2946.       },
  2947.       "id": "sk35z",
  2948.       "timestampUsec": "1232302352350000",
  2949.       "authorBadges": [
  2950.         {
  2951.           "liveChatAuthorBadgeRenderer": {
  2952.             "customThumbnail": {
  2953.               "thumbnails": [
  2954.                 {
  2955.                   "url": dummyImgURL,
  2956.                   "width": 16,
  2957.                   "height": 16
  2958.                 },
  2959.                 {
  2960.                   "url": dummyImgURL,
  2961.                   "width": 32,
  2962.                   "height": 32
  2963.                 }
  2964.               ]
  2965.             },
  2966.             "tooltip": "T",
  2967.             "accessibility": {
  2968.               "accessibilityData": {
  2969.                 "label": "E"
  2970.               }
  2971.             }
  2972.           }
  2973.         }
  2974.       ],
  2975.       "authorExternalChannelId": "A",
  2976.       "contextMenuAccessibility": {
  2977.         "accessibilityData": {
  2978.           "label": "E"
  2979.         }
  2980.       },
  2981.       "timestampText": {
  2982.         "simpleText": "0:43"
  2983.       }
  2984.     };
  2985.  
  2986.  
  2987.  
  2988.     const { lcRendererElm, visObserver } = (() => {
  2989.  
  2990.  
  2991.  
  2992.       let lcRendererWR = null;
  2993.  
  2994.       const lcRendererElm = () => {
  2995.         let lcRenderer = kRef(lcRendererWR);
  2996.         if (!lcRenderer || !lcRenderer.isConnected) {
  2997.           lcRenderer = document.querySelector('yt-live-chat-item-list-renderer.yt-live-chat-renderer');
  2998.           lcRendererWR = lcRenderer ? mWeakRef(lcRenderer) : null;
  2999.         }
  3000.         return lcRenderer;
  3001.       };
  3002.  
  3003.  
  3004.       let hasFirstShowMore = false;
  3005.  
  3006.       const visObserverFn = (entry) => {
  3007.  
  3008.         const target = entry.target;
  3009.         if (!target) return;
  3010.         // if(target.classList.contains('dont-render')) return;
  3011.         let isVisible = entry.isIntersecting === true && entry.intersectionRatio > 0.5;
  3012.         // const h = entry.boundingClientRect.height;
  3013.         /*
  3014.         if (h < 16) { // wrong: 8 (padding/margin); standard: 32; test: 16 or 20
  3015.             // e.g. under fullscreen. the element created but not rendered.
  3016.             target.setAttribute('wSr93', '');
  3017.             return;
  3018.         }
  3019.         */
  3020.         if (isVisible) {
  3021.           // target.style.setProperty('--wsr94', h + 'px');
  3022.           target.setAttribute('wSr93', 'visible');
  3023.           if (nNextElem(target) === null) {
  3024.  
  3025.             // firstVisibleItemDetected = true;
  3026.             /*
  3027.               if (dateNow() - lastScroll < 80) {
  3028.                   lastLShow = 0;
  3029.                   lastScroll = 0;
  3030.                   Promise.resolve().then(clickShowMore);
  3031.               } else {
  3032.                   lastLShow = dateNow();
  3033.               }
  3034.               */
  3035.             // lastLShow = dateNow();
  3036.           } else if (!hasFirstShowMore) { // should more than one item being visible
  3037.             // implement inside visObserver to ensure there is sufficient delay
  3038.             hasFirstShowMore = true;
  3039.             requestAnimationFrame(() => {
  3040.               // foreground page
  3041.               // page visibly ready -> load the latest comments at initial loading
  3042.               const lcRenderer = lcRendererElm();
  3043.               if (lcRenderer) {
  3044.                 if (typeof window.nextBrowserTick !== 'function') {
  3045.                   insp(lcRenderer).scrollToBottom_();
  3046.                 } else {
  3047.                   nextBrowserTick(() => {
  3048.                     const cnt = insp(lcRenderer);
  3049.                     if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  3050.                     cnt.scrollToBottom_();
  3051.                   });
  3052.                 }
  3053.               }
  3054.             });
  3055.           }
  3056.         }
  3057.         else if (target.getAttribute('wSr93') === 'visible') { // ignore target.getAttribute('wSr93') === '' to avoid wrong sizing
  3058.  
  3059.           // target.style.setProperty('--wsr94', h + 'px');
  3060.           target.setAttribute('wSr93', 'hidden');
  3061.         } // note: might consider 0 < entry.intersectionRatio < 0.5 and target.getAttribute('wSr93') === '' <new last item>
  3062.  
  3063.       }
  3064.  
  3065.  
  3066.  
  3067.       const visObserver = new IntersectionObserver((entries) => {
  3068.  
  3069.         for (const entry of entries) {
  3070.  
  3071.           Promise.resolve(entry).then(visObserverFn);
  3072.  
  3073.         }
  3074.  
  3075.       }, {
  3076.         // root: HTMLElement.prototype.closest.call(m2, '#item-scroller.yt-live-chat-item-list-renderer'), // nullable
  3077.         rootMargin: "0px",
  3078.         threshold: [0.05, 0.95],
  3079.       });
  3080.  
  3081.  
  3082.       return { lcRendererElm, visObserver }
  3083.  
  3084.  
  3085.     })();
  3086.  
  3087.     const { setupMutObserver } = (() => {
  3088.  
  3089.       async function asyncTickerBackgroundOverridedChecker() {
  3090.  
  3091.         try {
  3092.           await promiseForCustomYtElementsReady.then();
  3093.           await customElements.whenDefined('yt-live-chat-text-message-renderer');
  3094.           await new Promise(r => setTimeout(r, 800));
  3095.  
  3096.           if (!hasTimerModified) return;
  3097.           const tickerRenderer = document.querySelector('#ticker yt-live-chat-ticker-renderer.style-scope.yt-live-chat-renderer');
  3098.           if (!tickerRenderer) return;
  3099.  
  3100.           const tickerRendererDollar = indr(tickerRenderer);
  3101.           const items = (tickerRendererDollar || 0).items || 0;
  3102.           if (!items) return;
  3103.           const template = document.createElement('template');
  3104.           template.innerHTML = `<yt-live-chat-ticker-dummy777-item-renderer class="style-scope yt-live-chat-ticker-renderer" whole-message-clickable=""
  3105.             modern="" aria-label="¥1,000" role="button" tabindex="0" id="Chw777" style="width: 94px; overflow: hidden;"
  3106.             dimmed="" [dummy777]>
  3107.             <div id="container" dir="ltr" class="style-scope yt-live-chat-ticker-dummy777-item-renderer"
  3108.               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));">
  3109.               <div id="content" class="style-scope yt-live-chat-ticker-dummy777-item-renderer" style="color: rgb(255, 255, 255);">
  3110.                 <yt-img-shadow777 id="author-photo" height="24" width="24"
  3111.                   class="style-scope yt-live-chat-ticker-dummy777-item-renderer no-transition"
  3112.                   style="background-color: transparent;" loaded=""><img id="img"
  3113.                     draggable="false" class="style-scope yt-img-shadow" alt="I" height="24" width="24"
  3114.                     src="${dummyImgURL}"></yt-img-shadow777>
  3115.  
  3116.                 <span id="text" dir="ltr" class="style-scope yt-live-chat-ticker-dummy777-item-renderer">¥1,000</span>
  3117.               </div>
  3118.             </div>
  3119.           </yt-live-chat-ticker-dummy777-item-renderer>`;
  3120.           const dummy777 = template.content.firstElementChild;
  3121.           await Promise.resolve().then();
  3122.           let res = 0;
  3123.           if (items instanceof HTMLElement && items.isConnected === true) {
  3124.             try {
  3125.               items.appendChild(dummy777);
  3126.               let container = HTMLElement.prototype.querySelector.call(dummy777, '#container') || 0;
  3127.               if (container.isConnected === true) {
  3128.                 const evaluated = `${getComputedStyleCached(container).background}`;
  3129.                 container = null;
  3130.                 res = evaluated.indexOf('0.') < 4 ? 1 : 2;
  3131.               }
  3132.             } catch (e) { console.warn(e) }
  3133.             HTMLElement.prototype.remove.call(dummy777);
  3134.           }
  3135.           await Promise.resolve().then();
  3136.           dummy777.textContent = '';
  3137.           if (res === 1) {
  3138.             // not fulfilling
  3139.             // rgba(0, 0, 0, 0.004) none repeat scroll 0% 0% / auto padding-box border-box
  3140.             console.groupCollapsed(`%c${"YouTube Super Fast Chat"}%c${" | Incompatibility Found"}`,
  3141.               "background-color: #010502; color: #fe806a; font-weight: 700; padding: 2px;",
  3142.               "background-color: #010502; color: #fe806a; font-weight: 300; padding: 2px;"
  3143.             );
  3144.             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');
  3145.             console.groupEnd();
  3146.             console.log('%cALLOW_ADVANCED_ANIMATED_TICKER_BACKGROUND (Overriding other scripting)', 'background-color: #7eb32b; color: #102624; padding: 2px 4px');
  3147.           } else if (res === 2) {
  3148.             console.log('%cALLOW_ADVANCED_ANIMATED_TICKER_BACKGROUND', 'background-color: #16c450; color: #102624; padding: 2px 4px');
  3149.           }
  3150.         } catch (e) {
  3151.           console.warn(e);
  3152.         }
  3153.       }
  3154.  
  3155.       async function asyncDelayChatOccurrence(m2) {
  3156.         try {
  3157.           await promiseForCustomYtElementsReady.then();
  3158.           await customElements.whenDefined('yt-live-chat-text-message-renderer');
  3159.           await new Promise(r => setTimeout(r, 1));
  3160.           const dummy888 = document.createElement('yt-live-chat-text-message-renderer');
  3161.           // const template = document.createElement('template');
  3162.           // template.innerHTML = "<yt-live-chat-text-message-renderer></yt-live-chat-text-message-renderer>"
  3163.           // const dummy888 = template.content.firstElementChild;
  3164.           const skzCnt = insp(dummy888);
  3165.           if (!(skzCnt && 'data' in skzCnt && 'attached' in skzCnt)) {
  3166.             return;
  3167.           }
  3168.           if (!skzCnt.hostElement) skzCnt.hostElement = dummy888;
  3169.           /** @type {HTMLTemplateElement} */
  3170.           const skzElem = dummy888;
  3171.           let cz1 = null;
  3172.           const deferredZy1 = new Promise(resolve => {
  3173.             skzCnt.attached = function () {
  3174.               cz1 = HTMLElement.prototype.querySelector.call(skzElem, '#message img') !== null;
  3175.               resolve(skzElem.textContent);
  3176.             }
  3177.             skzCnt.detached = function () {
  3178.             }
  3179.           });
  3180.           skzElem.id = 'sk35z';
  3181.           skzData(skzCnt);
  3182.           sk35zResolveFn = null;
  3183.           const deferredMutation = new Promise(resolve => {
  3184.             sk35zResolveFn = resolve;
  3185.             HTMLElement.prototype.appendChild.call(m2, skzElem);
  3186.           });
  3187.           const [zy1, _] = await Promise.all([deferredZy1, deferredMutation]);
  3188.           skzCnt.attached = function () { };
  3189.           function fn() {
  3190.             const zy2 = skzElem.textContent;
  3191.             const cz2 = HTMLElement.prototype.querySelector.call(skzElem, '#message img') !== null;
  3192.             if (typeof zy1 === 'string' && typeof zy2 === 'string') {
  3193.               allowDontRender = zy1 === zy2 && cz1 === cz2; // '0:43N​em2oji'
  3194.             }
  3195.             if (allowDontRender === true) return true;
  3196.             if (allowDontRender === false) {
  3197.               console.groupCollapsed(`%c${"YouTube Super Fast Chat"}%c${" | Incompatibility Found"}`,
  3198.                 "background-color: #010502; color: #fe806a; font-weight: 700; padding: 2px;",
  3199.                 "background-color: #010502; color: #fe806a; font-weight: 300; padding: 2px;"
  3200.               );
  3201.               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');
  3202.               console.groupEnd();
  3203.             }
  3204.           }
  3205.           await new Promise(r => setTimeout(r, 1));
  3206.           if (!fn()) return;
  3207.           await new Promise(r => requestAnimationFrame(r));
  3208.           if (!fn()) return;
  3209.           skzElem.remove();
  3210.           await Promise.resolve().then();
  3211.           skzElem.textContent = '';
  3212.           console.log('%cALLOW_DELAYED_CHAT_OCCURRENCE', 'background-color: #16c450; color: #102624; padding: 2px 4px');
  3213.         } catch (e) {
  3214.           console.warn(e);
  3215.         }
  3216.       }
  3217.  
  3218.       const mutFn = (items) => {
  3219.         let seqIndex = -1;
  3220.         const elementSet = new Set();
  3221.         for (let node = nLastElem(items); node !== null; node = nPrevElem(node)) {
  3222.           if (node.hasAttribute('wSr93')) {
  3223.             seqIndex = parseInt(node.getAttribute('yt-chat-item-seq'), 10);
  3224.             break;
  3225.           }
  3226.           node.setAttribute('wSr93', '');
  3227.           visObserver.observe(node);
  3228.           elementSet.add(node);
  3229.         }
  3230.         let iter = elementSet.values();
  3231.         let i = seqIndex + elementSet.size;
  3232.         for (let curr; curr = iter.next().value;) {
  3233.           curr.setAttribute('yt-chat-item-seq', i % 60);
  3234.           curr.classList.add('yt-chat-item-' + ((i % 2) ? 'odd' : 'even'));
  3235.           i--;
  3236.         }
  3237.         iter = null;
  3238.         elementSet.clear();
  3239.       }
  3240.  
  3241.       const mutObserver = new MutationObserver((mutations) => {
  3242.         const items = (mutations[0] || 0).target;
  3243.         if (!items) return;
  3244.         if (sk35zResolveFn) {
  3245.           sk35zResolveFn();
  3246.           sk35zResolveFn = null;
  3247.         }
  3248.         mutFn(items);
  3249.       });
  3250.  
  3251.       const setupMutObserver = (m2) => {
  3252.         scrollChatFn = null;
  3253.         mutObserver.disconnect();
  3254.         mutObserver.takeRecords();
  3255.         if (m2) {
  3256.           ENABLE_DELAYED_CHAT_OCCURRENCE && bnForDelayChatOccurrence();
  3257.           if (typeof m2.__appendChild932__ === 'function') {
  3258.             if (typeof m2.appendChild === 'function') m2.appendChild = m2.__appendChild932__;
  3259.             if (typeof m2.__shady_native_appendChild === 'function') m2.__shady_native_appendChild = m2.__appendChild932__;
  3260.           }
  3261.           mutObserver.observe(m2, {
  3262.             childList: true,
  3263.             subtree: false
  3264.           });
  3265.           mutFn(m2);
  3266.  
  3267.           const isFirstList = firstList;
  3268.           firstList = false;
  3269.  
  3270.           if (ENABLE_OVERFLOW_ANCHOR) {
  3271.  
  3272.             let items = m2;
  3273.             let addedAnchor = false;
  3274.             if (items) {
  3275.               if (items.nextElementSibling === null) {
  3276.                 items.classList.add('no-anchor');
  3277.                 addedAnchor = true;
  3278.                 items.parentNode.appendChild(dr(document.createElement('item-anchor')));
  3279.               }
  3280.             }
  3281.  
  3282.  
  3283.  
  3284.             if (addedAnchor) {
  3285.               nodeParent(m2).classList.add('no-anchor'); // required
  3286.             }
  3287.  
  3288.           }
  3289.  
  3290.           // let div = document.createElement('div');
  3291.           // div.id = 'qwcc';
  3292.           // HTMLElement.prototype.appendChild.call(document.querySelector('yt-live-chat-item-list-renderer'), div )
  3293.           // bufferRegion =div;
  3294.  
  3295.           // buffObserver.takeRecords();
  3296.           // buffObserver.disconnect();
  3297.           // buffObserver.observe(div,  {
  3298.           //     childList: true,
  3299.           //     subtree: false
  3300.           // })
  3301.  
  3302.           if (ENABLE_DELAYED_CHAT_OCCURRENCE && isFirstList) {
  3303.             asyncDelayChatOccurrence(m2);
  3304.           }
  3305.  
  3306.  
  3307.           if (ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX) {
  3308.  
  3309.             (() => {
  3310.  
  3311.               const tag = 'yt-iframed-player-events-relay'
  3312.               const dummy = document.createElement(tag);
  3313.  
  3314.               const cProto = getProto(dummy);
  3315.               if (!cProto || !cProto.handlePostMessage_) {
  3316.                 console.warn(`proto.handlePostMessage_ for ${tag} is unavailable.`);
  3317.                 return;
  3318.               }
  3319.  
  3320.               if (typeof cProto.handlePostMessage_ === 'function' && !cProto.handlePostMessage66_) {
  3321.  
  3322.                 cProto.handlePostMessage66_ = cProto.handlePostMessage_;
  3323.  
  3324.                 cProto.handlePostMessage67_ = function (a) {
  3325.  
  3326.                   const da = a.data;
  3327.  
  3328.  
  3329.  
  3330.                   playEventsStack = playEventsStack.then(() => {
  3331.  
  3332.  
  3333.  
  3334.                     if ('yt-player-state-change' in da) {
  3335.  
  3336.                       const qc = da['yt-player-state-change'];
  3337.  
  3338.  
  3339.                       let isQcChanged = false;
  3340.  
  3341.                       if (qc === 2) { isQcChanged = qc !== _playerState; _playerState = 2; relayCount = 0; } // paused
  3342.                       else if (qc === 3) { isQcChanged = qc !== _playerState; _playerState = 3; } // playing
  3343.                       else if (qc === 1) { isQcChanged = qc !== _playerState; _playerState = 1; } // playing
  3344.  
  3345.  
  3346.                       if ((isQcChanged) && playerState !== _playerState) {
  3347.                         playerEventsByIframeRelay = true;
  3348.                         onPlayStateChangePromise = new Promise((resolve) => {
  3349.                           let k = _playerState;
  3350.                           foregroundPromiseFn().then(() => {
  3351.                             if (k === _playerState && playerState !== _playerState) playerState = _playerState;
  3352.                             onPlayStateChangePromise = null;
  3353.                             resolve();
  3354.                           })
  3355.                         }).catch(console.warn);
  3356.  
  3357.                       }
  3358.  
  3359.                     } else if ('yt-player-video-progress' in da) {
  3360.                       const vp = da['yt-player-video-progress'];
  3361.  
  3362.  
  3363.                       relayCount++;
  3364.                       lastPlayerProgress = vp > 0 ? vp : 0;
  3365.  
  3366.  
  3367.                       if (relayPromise && vp > 0 && relayCount >= 2) {
  3368.                         if (onPlayStateChangePromise) {
  3369.                           onPlayStateChangePromise.then(() => {
  3370.                             relayPromise && relayPromise.resolve();
  3371.                             relayPromise = null;
  3372.                           })
  3373.                         } else {
  3374.                           relayPromise.resolve();
  3375.                           relayPromise = null;
  3376.                         }
  3377.                       }
  3378.  
  3379.  
  3380.  
  3381.                     }
  3382.  
  3383.  
  3384.  
  3385.  
  3386.  
  3387.  
  3388.                     return this.handlePostMessage66_(a);
  3389.  
  3390.  
  3391.  
  3392.                   }).catch(console.warn);
  3393.  
  3394.                 }
  3395.  
  3396.  
  3397.                 cProto.handlePostMessage_ = function (a) {
  3398.  
  3399.  
  3400.                   const da = (a || 0).data || 0;
  3401.  
  3402.                   if (typeof da !== 'object') return;
  3403.  
  3404.                   if (waitForInitialDataCompletion === 1) return;
  3405.  
  3406.                   if (!isPlayProgressTriggered) {
  3407.                     isPlayProgressTriggered = true;
  3408.  
  3409.                     if ('yt-player-video-progress' in da) {
  3410.                       waitForInitialDataCompletion = 1;
  3411.  
  3412.                       const wrapWith = (data) => {
  3413.                         const { origin } = a;
  3414.                         return {
  3415.                           origin,
  3416.                           data
  3417.                         };
  3418.                       }
  3419.  
  3420.                       this.handlePostMessage67_(wrapWith({
  3421.                         "yt-iframed-parent-ready": true
  3422.                       }));
  3423.  
  3424.  
  3425.  
  3426.                       playEventsStack = playEventsStack.then(() => {
  3427.  
  3428.  
  3429.  
  3430.                         const lcr = document.querySelector('yt-live-chat-renderer');
  3431.                         const psc = document.querySelector("yt-player-seek-continuation");
  3432.                         if (lcr && psc && lcr.replayBuffer_) {
  3433.  
  3434.  
  3435.                           const rbProgress = lcr.replayBuffer_.lastVideoOffsetTimeMsec;
  3436.                           const daProgress = da['yt-player-video-progress'] * 1000
  3437.                           // document.querySelector('yt-live-chat-renderer').playerProgressChanged_(1e-5);
  3438.  
  3439.  
  3440.                           const front_ = (lcr.replayBuffer_.replayQueue || 0).front_;
  3441.                           const back_ = (lcr.replayBuffer_.replayQueue || 0).back_;
  3442.  
  3443.  
  3444.                           // console.log(deepCopy( front_))
  3445.                           // console.log(deepCopy( back_))
  3446.                           // console.log(rbProgress, daProgress, )
  3447.                           if (front_ && back_ && rbProgress > daProgress && back_.length > 2 && back_.some(e => e && +e.videoOffsetTimeMsec > daProgress) && back_.some(e => e && +e.videoOffsetTimeMsec < daProgress)) {
  3448.                             // no action
  3449.                             // console.log('ss1')
  3450.                           } else if (rbProgress < daProgress + 3400 && rbProgress > daProgress - 1200) {
  3451.                             //  daProgress - 1200 < rbProgress < daProgress + 3400
  3452.                             // console.log('ss2')
  3453.                           } else {
  3454.  
  3455.                             // console.log('ss3')
  3456.                             // lcr.replayBuffer_.replayQueue.back_.length= 0;
  3457.                             // lcr.replayBuffer_.replayQueue.front_.length= 0;
  3458.  
  3459.                             // lcr
  3460.                             lcr.previousProgressSec = 1E-5;
  3461.                             // lcr._setIsSeeking(!0),
  3462.                             lcr.replayBuffer_.clear()
  3463.                             psc.fireSeekContinuation_(da['yt-player-video-progress']);
  3464.                           }
  3465.  
  3466.                         }
  3467.  
  3468.  
  3469.                         waitForInitialDataCompletion = 2;
  3470.  
  3471.                         this.handlePostMessage_(a);
  3472.  
  3473.  
  3474.                       }).catch(console.warn);
  3475.  
  3476.  
  3477.  
  3478.                       return;
  3479.  
  3480.                     }
  3481.  
  3482.                   }
  3483.  
  3484.  
  3485.  
  3486.                   this.handlePostMessage67_(a);
  3487.  
  3488.  
  3489.  
  3490.                 }
  3491.  
  3492.               }
  3493.  
  3494.  
  3495.             })();
  3496.  
  3497.           }
  3498.  
  3499.           if (isFirstList && DO_CHECK_TICKER_BACKGROUND_OVERRIDED) {
  3500.             asyncTickerBackgroundOverridedChecker();
  3501.           }
  3502.  
  3503.         }
  3504.       }
  3505.  
  3506.       return { setupMutObserver };
  3507.  
  3508.  
  3509.  
  3510.     })();
  3511.  
  3512.     const setupEvents = () => {
  3513.  
  3514.  
  3515.       let scrollCount = 0;
  3516.  
  3517.       const passiveCapture = typeof IntersectionObserver === 'function' ? { capture: true, passive: true } : true;
  3518.  
  3519.  
  3520.       const delayFlushActiveItemsAfterUserActionK_ = () => {
  3521.  
  3522.         const lcRenderer = lcRendererElm();
  3523.         if (lcRenderer) {
  3524.           const cnt = insp(lcRenderer);
  3525.           if (!cnt.hasUserJustInteracted11_) return;
  3526.           if (cnt.atBottom && cnt.allowScroll && cnt.activeItems_.length >= 1 && cnt.hasUserJustInteracted11_()) {
  3527.             cnt.delayFlushActiveItemsAfterUserAction11_ && cnt.delayFlushActiveItemsAfterUserAction11_();
  3528.           }
  3529.         }
  3530.  
  3531.       }
  3532.  
  3533.       document.addEventListener('scroll', (evt) => {
  3534.         if (!evt || !evt.isTrusted) return;
  3535.         // lastScroll = dateNow();
  3536.         if (++scrollCount > 1e9) scrollCount = 9;
  3537.       }, passiveCapture); // support contain => support passive
  3538.  
  3539.       let lastScrollCount = -1;
  3540.       document.addEventListener('wheel', (evt) => {
  3541.         if (!evt || !evt.isTrusted) return;
  3542.         if (lastScrollCount === scrollCount) return;
  3543.         lastScrollCount = scrollCount;
  3544.         lastWheel = dateNow();
  3545.         delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3546.       }, passiveCapture); // support contain => support passive
  3547.  
  3548.       document.addEventListener('mousedown', (evt) => {
  3549.         if (!evt || !evt.isTrusted) return;
  3550.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3551.         lastMouseDown = dateNow();
  3552.         currentMouseDown = true;
  3553.         lastUserInteraction = lastMouseDown;
  3554.       }, passiveCapture);
  3555.  
  3556.       document.addEventListener('pointerdown', (evt) => {
  3557.         if (!evt || !evt.isTrusted) return;
  3558.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3559.         lastMouseDown = dateNow();
  3560.         currentMouseDown = true;
  3561.         lastUserInteraction = lastMouseDown;
  3562.       }, passiveCapture);
  3563.  
  3564.       document.addEventListener('click', (evt) => {
  3565.         if (!evt || !evt.isTrusted) return;
  3566.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3567.         lastMouseDown = lastMouseUp = dateNow();
  3568.         currentMouseDown = false;
  3569.         lastUserInteraction = lastMouseDown;
  3570.         delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3571.       }, passiveCapture);
  3572.  
  3573.       document.addEventListener('tap', (evt) => {
  3574.         if (!evt || !evt.isTrusted) return;
  3575.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3576.         lastMouseDown = lastMouseUp = dateNow();
  3577.         currentMouseDown = false;
  3578.         lastUserInteraction = lastMouseDown;
  3579.         delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3580.       }, passiveCapture);
  3581.  
  3582.  
  3583.       document.addEventListener('mouseup', (evt) => {
  3584.         if (!evt || !evt.isTrusted) return;
  3585.         if (currentMouseDown) {
  3586.           lastMouseUp = dateNow();
  3587.           currentMouseDown = false;
  3588.           lastUserInteraction = lastMouseUp;
  3589.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3590.         }
  3591.       }, passiveCapture);
  3592.  
  3593.  
  3594.       document.addEventListener('pointerup', (evt) => {
  3595.         if (!evt || !evt.isTrusted) return;
  3596.         if (currentMouseDown) {
  3597.           lastMouseUp = dateNow();
  3598.           currentMouseDown = false;
  3599.           lastUserInteraction = lastMouseUp;
  3600.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3601.         }
  3602.       }, passiveCapture);
  3603.  
  3604.       document.addEventListener('touchstart', (evt) => {
  3605.         if (!evt || !evt.isTrusted) return;
  3606.         lastTouchDown = dateNow();
  3607.         currentTouchDown = true;
  3608.         lastUserInteraction = lastTouchDown;
  3609.       }, passiveCapture);
  3610.  
  3611.       document.addEventListener('touchmove', (evt) => {
  3612.         if (!evt || !evt.isTrusted) return;
  3613.         lastTouchDown = dateNow();
  3614.         currentTouchDown = true;
  3615.         lastUserInteraction = lastTouchDown;
  3616.       }, passiveCapture);
  3617.  
  3618.       document.addEventListener('touchend', (evt) => {
  3619.         if (!evt || !evt.isTrusted) return;
  3620.         if (currentTouchDown) {
  3621.           lastTouchUp = dateNow();
  3622.           currentTouchDown = false;
  3623.           lastUserInteraction = lastTouchUp;
  3624.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3625.         }
  3626.       }, passiveCapture);
  3627.  
  3628.       document.addEventListener('touchcancel', (evt) => {
  3629.         if (!evt || !evt.isTrusted) return;
  3630.         if (currentTouchDown) {
  3631.           lastTouchUp = dateNow();
  3632.           currentTouchDown = false;
  3633.           lastUserInteraction = lastTouchUp;
  3634.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3635.         }
  3636.       }, passiveCapture);
  3637.  
  3638.  
  3639.     }
  3640.  
  3641.     const getTimestampUsec = (itemRenderer) => {
  3642.       if (itemRenderer && 'timestampUsec' in itemRenderer) {
  3643.         return itemRenderer.timestampUsec
  3644.       } else if (itemRenderer && itemRenderer.showItemEndpoint) {
  3645.         const messageRenderer = ((itemRenderer.showItemEndpoint.showLiveChatItemEndpoint || 0).renderer || 0);
  3646.         if (messageRenderer) {
  3647.  
  3648.           const messageRendererKey = firstObjectKey(messageRenderer);
  3649.           if (messageRendererKey && messageRenderer[messageRendererKey]) {
  3650.             const messageRendererData = messageRenderer[messageRendererKey];
  3651.             if (messageRendererData && 'timestampUsec' in messageRendererData) {
  3652.               return messageRendererData.timestampUsec
  3653.             }
  3654.           }
  3655.         }
  3656.       }
  3657.       return null;
  3658.     }
  3659.  
  3660.     const onRegistryReadyForDOMOperations = () => {
  3661.  
  3662.       let firstCheckedOnYtInit = false;
  3663.  
  3664.       const assertorURL = () => assertor(() => location.pathname.startsWith('/live_chat') && (location.search.indexOf('continuation=') > 0 || location.search.indexOf('v=') > 0));
  3665.  
  3666.       const mightFirstCheckOnYtInit = () => {
  3667.         if (firstCheckedOnYtInit) return;
  3668.         firstCheckedOnYtInit = true;
  3669.  
  3670.         if (!document.body || !document.head) return;
  3671.         if (!assertorURL()) return;
  3672.  
  3673.         addCssManaged();
  3674.  
  3675.         let efsContainer = document.getElementById('elzm-fonts-yk75g');
  3676.         if (efsContainer && efsContainer.parentNode !== document.body) {
  3677.           document.body.appendChild(efsContainer);
  3678.         }
  3679.  
  3680.       };
  3681.  
  3682.       if (!assertorURL()) return;
  3683.       // if (!assertor(() => document.getElementById('yt-masthead') === null)) return;
  3684.  
  3685.       if (document.documentElement && document.head) {
  3686.         addCssManaged();
  3687.       }
  3688.       // console.log(document.body===null)
  3689.  
  3690.       if (ATTEMPT_TICKER_ANIMATION_START_TIME_DETECTION) {
  3691.         getLCRDummy().then(async (lcrDummy) => {
  3692.  
  3693.           const tag = "yt-live-chat-renderer"
  3694.           const dummy = lcrDummy;
  3695.  
  3696.           const cProto = getProto(dummy);
  3697.           if (!cProto || !cProto.attached) {
  3698.             console.warn(`proto.attached for ${tag} is unavailable.`);
  3699.             return;
  3700.           }
  3701.  
  3702.           mightFirstCheckOnYtInit();
  3703.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-renderer hacks");
  3704.           console.log("[Begin]");
  3705.  
  3706.  
  3707.  
  3708.  
  3709.  
  3710.  
  3711.           if (typeof cProto.playerProgressChanged_ === 'function' && !cProto.playerProgressChanged32_) {
  3712.  
  3713.             cProto.playerProgressChanged32_ = cProto.playerProgressChanged_;
  3714.  
  3715.             const pop078 = function () {
  3716.               const r = this.pop78();
  3717.  
  3718.               if (r && (r.actions || 0).length >= 1 && r.videoOffsetTimeMsec) {
  3719.                 for (const action of r.actions) {
  3720.  
  3721.                   const itemActionKey = !action ? null : 'addChatItemAction' in action ? 'addChatItemAction' : 'addLiveChatTickerItemAction' in action ? 'addLiveChatTickerItemAction' : null;
  3722.                   if (itemActionKey) {
  3723.  
  3724.                     const itemAction = action[itemActionKey];
  3725.                     const item = (itemAction || 0).item;
  3726.                     if (typeof item === 'object') {
  3727.  
  3728.                       const rendererKey = firstObjectKey(item);
  3729.                       if (rendererKey) {
  3730.                         const renderer = item[rendererKey];
  3731.                         if (renderer && typeof renderer === 'object') {
  3732.                           renderer.__videoOffsetTimeMsec__ = r.videoOffsetTimeMsec;
  3733.                           renderer.__progressAt__ = playerProgressChangedArg1;
  3734.                         }
  3735.  
  3736.                       }
  3737.  
  3738.                     }
  3739.                   }
  3740.                 }
  3741.               }
  3742.               return r;
  3743.             }
  3744.  
  3745.             cProto.playerProgressChanged_ = function (a, b, c) {
  3746.               playerProgressChangedArg1 = a;
  3747.               playerProgressChangedArg2 = b;
  3748.               playerProgressChangedArg3 = c;
  3749.               const replayBuffer_ = this.replayBuffer_;
  3750.               if (replayBuffer_) {
  3751.                 const replayQueue = replayBuffer_.replayQueue
  3752.                 if (replayQueue && typeof replayQueue === 'object' && !replayQueue.qe3) {
  3753.  
  3754.                   replayBuffer_.replayQueue = new Proxy(replayBuffer_.replayQueue, {
  3755.                     get(target, prop, receiver) {
  3756.                       if (prop === 'qe3') return 1;
  3757.                       const v = target[prop];
  3758.                       if (prop === 'front_') {
  3759.                         if (v && typeof v.length === 'number') {
  3760.                           if (!v.pop78) {
  3761.                             v.pop78 = v.pop;
  3762.                             v.pop = pop078;
  3763.                           }
  3764.                         }
  3765.                       }
  3766.                       return v;
  3767.                     }
  3768.                   });
  3769.  
  3770.                 }
  3771.               }
  3772.               return this.playerProgressChanged32_.apply(this, arguments);
  3773.             };
  3774.  
  3775.           }
  3776.  
  3777.           // if (typeof cProto.immediatelyApplyLiveChatActions === 'function' && !cProto.immediatelyApplyLiveChatActions32) {
  3778.  
  3779.           //   cProto.immediatelyApplyLiveChatActions32 = cProto.immediatelyApplyLiveChatActions;
  3780.  
  3781.           //   cProto.immediatelyApplyLiveChatActions = function (a) {
  3782.           //     // if (a.length > 8) {
  3783.           //     //   console.log(a)
  3784.           //     // }
  3785.           //     // console.log(a)
  3786.           //     /*
  3787.           //     let arr=a.slice();
  3788.  
  3789.           //     if(arr.length >= 2){
  3790.           //       arr.sort((a, b)=>{
  3791.           //         let ak = firstObjectKey(a);
  3792.           //         let bk = firstObjectKey(b);
  3793.           //         if(!ak||!bk) return 0;
  3794.           //         const ax = +a[ak]._timestampUsec57;
  3795.           //         const bx = +b[bk]._timestampUsec57;
  3796.           //         if(ax >0 && bx >0){
  3797.           //           const c =  bx - ax ;
  3798.  
  3799.           //           return c > 0.1 ? -1 : c< -0.1 ? 1 : 0;
  3800.           //         }
  3801.           //         return 0;
  3802.  
  3803.           //       });
  3804.           //       console.log('sort', JSON.parse(JSON.stringify(arr)));
  3805.           //     }
  3806.           //     a=arr;
  3807.           //     */
  3808.  
  3809.           //     if (a && typeof a === 'object' && a.length >= 1) {
  3810.           //       const d = Date.now();
  3811.           //       const m = [];
  3812.           //       for (let i = 0, l = a.length; i < l; i++) {
  3813.           //         const action = a[i];
  3814.           //         const key = !action ? null : 'addChatItemAction' in action ? 'addChatItemAction' : 'addLiveChatTickerItemAction' in action ? 'addLiveChatTickerItemAction' : null;
  3815.           //         if (key === 'addChatItemAction' || key === 'addLiveChatTickerItemAction') {
  3816.           //           const itemAction = action[key] || 0;
  3817.           //           const item = itemAction.item || 0;
  3818.           //           if (item && typeof item === 'object') {
  3819.           //             let rendererKey = firstObjectKey(item);
  3820.           //             const renderer = item[rendererKey];
  3821.           //             let timestampUsec = getTimestampUsec(renderer);
  3822.           //             if (timestampUsec !== null) {
  3823.           //               renderer._timestampUsec57 = timestampUsec;
  3824.           //             }
  3825.           //             m.push(renderer);
  3826.           //             // if(timestampUsec!==null){
  3827.           //             //   if(key==='addLiveChatTickerItemAction')console.log(renderer, rendererKey, key)
  3828.           //             //   m.push(renderer);
  3829.  
  3830.           //             // }
  3831.           //           }
  3832.           //         }
  3833.           //       }
  3834.           //       if (m.length >= 1) {
  3835.  
  3836.           //         let lastUsec = null;
  3837.           //         for (let i = 0, l = m.length; i < l; i++) {
  3838.           //           const renderer = m[i];
  3839.           //           if ('_timestampUsec57' in renderer) {
  3840.           //             lastUsec = +renderer._timestampUsec57 / 1E3;
  3841.           //             renderer.__lcrTime__ = d;
  3842.           //             renderer.__actionAt__ = d;
  3843.           //           }
  3844.           //         }
  3845.  
  3846.  
  3847.           //         if (lastUsec !== null) {
  3848.  
  3849.           //           const refUsec = lastUsec
  3850.  
  3851.           //           let prevUsec = null;
  3852.           //           for (let i = 0, l = m.length; i < l; i++) {
  3853.           //             const renderer = m[i];
  3854.           //             if ('_timestampUsec57' in renderer) {
  3855.  
  3856.           //               let actualTime = +renderer._timestampUsec57 / 1E3; // ms
  3857.           //               let lcrTime = d - Math.round(refUsec - actualTime); // ms
  3858.  
  3859.           //               renderer.__lcrTime__ = lcrTime; // ms
  3860.           //               renderer.__actionAt__ = d;
  3861.  
  3862.           //               prevUsec = lcrTime
  3863.           //             } else {
  3864.  
  3865.           //               renderer._prevUsec57 = prevUsec;
  3866.           //             }
  3867.           //           }
  3868.  
  3869.  
  3870.           //           let nextUsec = null;
  3871.           //           for (let i = m.length - 1; i >= 0; i--) {
  3872.           //             const renderer = m[i];
  3873.           //             if ('_timestampUsec57' in renderer) {
  3874.  
  3875.           //               nextUsec = renderer.__lcrTime__
  3876.           //             } else {
  3877.  
  3878.           //               renderer._nextUsec57 = nextUsec;
  3879.  
  3880.           //               if (renderer._nextUsec57 > 0 && renderer._prevUsec57 > 0 && renderer._nextUsec57 > renderer._prevUsec57) {
  3881.           //                 renderer.__lcrTime__ = (renderer._nextUsec57 + renderer._prevUsec57) / 2;
  3882.           //                 renderer.__actionAt__ = d;
  3883.           //               }
  3884.           //             }
  3885.           //           }
  3886.  
  3887.  
  3888.           //         }
  3889.  
  3890.  
  3891.           //       }
  3892.           //     }
  3893.           //     return this.immediatelyApplyLiveChatActions32.apply(this, arguments)
  3894.           //   }
  3895.  
  3896.  
  3897.           // }
  3898.  
  3899.  
  3900.  
  3901.           console.log("[End]");
  3902.           console.groupEnd();
  3903.  
  3904.  
  3905.         });
  3906.  
  3907.       }
  3908.  
  3909.       customElements.whenDefined('yt-live-chat-item-list-renderer').then(() => {
  3910.  
  3911.         const tag = "yt-live-chat-item-list-renderer"
  3912.         const dummy = document.createElement(tag);
  3913.  
  3914.         const cProto = getProto(dummy);
  3915.         if (!cProto || !cProto.attached) {
  3916.           console.warn(`proto.attached for ${tag} is unavailable.`);
  3917.           return;
  3918.         }
  3919.  
  3920.         mightFirstCheckOnYtInit();
  3921.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-item-list-renderer hacks");
  3922.         console.log("[Begin]");
  3923.  
  3924.         const mclp = cProto;
  3925.         try {
  3926.           assertor(() => typeof mclp.scrollToBottom_ === 'function');
  3927.           assertor(() => typeof mclp.flushActiveItems_ === 'function');
  3928.           assertor(() => typeof mclp.canScrollToBottom_ === 'function');
  3929.           assertor(() => typeof mclp.setAtBottom === 'function');
  3930.           assertor(() => typeof mclp.scrollToBottom66_ === 'undefined');
  3931.           assertor(() => typeof mclp.flushActiveItems66_ === 'undefined');
  3932.         } catch (e) { }
  3933.  
  3934.  
  3935.         try {
  3936.           assertor(() => typeof mclp.attached === 'function');
  3937.           assertor(() => typeof mclp.detached === 'function');
  3938.           assertor(() => typeof mclp.canScrollToBottom_ === 'function');
  3939.           assertor(() => typeof mclp.isSmoothScrollEnabled_ === 'function');
  3940.           assertor(() => typeof mclp.maybeResizeScrollContainer_ === 'function');
  3941.           assertor(() => typeof mclp.refreshOffsetContainerHeight_ === 'function');
  3942.           assertor(() => typeof mclp.smoothScroll_ === 'function');
  3943.           assertor(() => typeof mclp.resetSmoothScroll_ === 'function');
  3944.         } catch (e) { }
  3945.  
  3946.         mclp.__intermediate_delay__ = null;
  3947.  
  3948.         let mzk = 0;
  3949.         let myk = 0;
  3950.         let mlf = 0;
  3951.         let myw = 0;
  3952.         let mzt = 0;
  3953.         let zarr = null;
  3954.         let mlg = 0;
  3955.  
  3956.         if ((mclp.clearList || 0).length === 0) {
  3957.           assertor(() => fnIntegrity(mclp.clearList, '0.106.50'));
  3958.           mclp.clearList66 = mclp.clearList;
  3959.           mclp.clearList = function () {
  3960.             mzk++;
  3961.             myk++;
  3962.             mlf++;
  3963.             myw++;
  3964.             mzt++;
  3965.             mlg++;
  3966.             zarr = null;
  3967.             this.__intermediate_delay__ = null;
  3968.             this.clearList66();
  3969.           };
  3970.           console.log("clearList", "OK");
  3971.         } else {
  3972.           console.log("clearList", "NG");
  3973.         }
  3974.  
  3975.  
  3976.         let onListRendererAttachedDone = false;
  3977.  
  3978.         function setList(itemOffset, items) {
  3979.  
  3980.           const isFirstTime = onListRendererAttachedDone === false;
  3981.  
  3982.           if (isFirstTime) {
  3983.             onListRendererAttachedDone = true;
  3984.             Promise.resolve().then(watchUserCSS);
  3985.             addCssManaged();
  3986.             setupEvents();
  3987.           }
  3988.  
  3989.           setupStyle(itemOffset, items);
  3990.  
  3991.           setupMutObserver(items);
  3992.         }
  3993.  
  3994.         mclp.attached419 = async function () {
  3995.  
  3996.           if (!this.isAttached) return;
  3997.  
  3998.           let maxTrial = 16;
  3999.           while (!this.$ || !this.$['item-scroller'] || !this.$['item-offset'] || !this.$['items']) {
  4000.             if (--maxTrial < 0 || !this.isAttached) return;
  4001.             await new Promise(requestAnimationFrame);
  4002.           }
  4003.  
  4004.           if (this.isAttached !== true) return;
  4005.  
  4006.           if (!this.$) {
  4007.             console.warn("!this.$");
  4008.             return;
  4009.           }
  4010.           if (!this.$) return;
  4011.           /** @type {HTMLElement | null} */
  4012.           const itemScroller = this.$['item-scroller'];
  4013.           /** @type {HTMLElement | null} */
  4014.           const itemOffset = this.$['item-offset'];
  4015.           /** @type {HTMLElement | null} */
  4016.           const items = this.$['items'];
  4017.  
  4018.           if (!itemScroller || !itemOffset || !items) {
  4019.             console.warn("items.parentNode !== itemOffset");
  4020.             return;
  4021.           }
  4022.  
  4023.           if (nodeParent(items) !== itemOffset) {
  4024.  
  4025.             console.warn("items.parentNode !== itemOffset");
  4026.             return;
  4027.           }
  4028.  
  4029.  
  4030.           if (items.id !== 'items' || itemOffset.id !== "item-offset") {
  4031.  
  4032.             console.warn("id incorrect");
  4033.             return;
  4034.           }
  4035.  
  4036.           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')
  4037.  
  4038.           if (!isTargetItems) {
  4039.             console.warn("!isTargetItems");
  4040.             return;
  4041.           }
  4042.  
  4043.           setList(itemOffset, items);
  4044.  
  4045.         }
  4046.  
  4047.         mclp.attached331 = mclp.attached;
  4048.         mclp.attached = function () {
  4049.           this.attached419 && this.attached419();
  4050.           return this.attached331();
  4051.         }
  4052.  
  4053.         mclp.detached331 = mclp.detached;
  4054.  
  4055.         mclp.detached = function () {
  4056.           setupMutObserver();
  4057.           return this.detached331();
  4058.         }
  4059.  
  4060.         const t29s = document.querySelectorAll("yt-live-chat-item-list-renderer");
  4061.         for (const t29 of t29s) {
  4062.           if (insp(t29).isAttached === true) {
  4063.             t29.attached419();
  4064.           }
  4065.         }
  4066.  
  4067.         if ((mclp.async || 0).length === 2 && (mclp.cancelAsync || 0).length === 1) {
  4068.  
  4069.           assertor(() => fnIntegrity(mclp.async, '2.24.15'));
  4070.           assertor(() => fnIntegrity(mclp.cancelAsync, '1.15.8'));
  4071.  
  4072.           /** @type {Map<number, any>} */
  4073.           const aMap = new Map();
  4074.           let count = 6150;
  4075.           mclp.async66 = mclp.async;
  4076.           mclp.async = function (e, f) {
  4077.             // ensure the previous operation is done
  4078.             // .async is usually after the time consuming functions like flushActiveItems_ and scrollToBottom_
  4079.             const hasF = arguments.length === 2;
  4080.             const stack = new Error().stack;
  4081.             const isFlushAsync = stack.indexOf('flushActiveItems_') >= 0;
  4082.             if (count > 1e9) count = 6159;
  4083.             const resId = ++count;
  4084.             aMap.set(resId, e);
  4085.             (this.__intermediate_delay__ || Promise.resolve()).then(rk => {
  4086.               const rp = aMap.get(resId);
  4087.               if (typeof rp !== 'function') {
  4088.                 return;
  4089.               }
  4090.               let cancelCall = false;
  4091.               if (isFlushAsync) {
  4092.                 if (rk < 0) {
  4093.                   cancelCall = true;
  4094.                 } else if (rk === 2 && arguments[0] === this.maybeScrollToBottom_) {
  4095.                   cancelCall = true;
  4096.                 }
  4097.               }
  4098.               if (cancelCall) {
  4099.                 aMap.delete(resId);
  4100.               } else {
  4101.                 const asyncEn = function () {
  4102.                   aMap.delete(resId);
  4103.                   return rp.apply(this, arguments);
  4104.                 };
  4105.                 aMap.set(resId, hasF ? this.async66(asyncEn, f) : this.async66(asyncEn));
  4106.               }
  4107.             });
  4108.  
  4109.             return resId;
  4110.           }
  4111.  
  4112.           mclp.cancelAsync66 = mclp.cancelAsync;
  4113.           mclp.cancelAsync = function (resId) {
  4114.             if (resId <= 6150) {
  4115.               this.cancelAsync66(resId);
  4116.             } else if (aMap.has(resId)) {
  4117.               const rp = aMap.get(resId);
  4118.               aMap.delete(resId);
  4119.               if (typeof rp !== 'function') {
  4120.                 this.cancelAsync66(rp);
  4121.               }
  4122.             }
  4123.           }
  4124.  
  4125.           console.log("async", "OK");
  4126.         } else {
  4127.           console.log("async", "NG");
  4128.         }
  4129.  
  4130.  
  4131.         if ((mclp.showNewItems_ || 0).length === 0 && ENABLE_NO_SMOOTH_TRANSFORM) {
  4132.  
  4133.           assertor(() => fnIntegrity(mclp.showNewItems_, '0.170.79'));
  4134.           mclp.showNewItems66_ = mclp.showNewItems_;
  4135.  
  4136.           mclp.showNewItems77_ = async function () {
  4137.             if (myk > 1e9) myk = 9;
  4138.             let tid = ++myk;
  4139.  
  4140.             await new Promise(requestAnimationFrame);
  4141.  
  4142.             if (tid !== myk) {
  4143.               return;
  4144.             }
  4145.  
  4146.             const cnt = this;
  4147.  
  4148.             await Promise.resolve();
  4149.             cnt.showNewItems66_();
  4150.  
  4151.             await Promise.resolve();
  4152.  
  4153.           }
  4154.  
  4155.           mclp.showNewItems_ = function () {
  4156.  
  4157.             const cnt = this;
  4158.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4159.               cnt.showNewItems77_().then(() => {
  4160.                 resolve();
  4161.               });
  4162.             });
  4163.           }
  4164.  
  4165.           console.log("showNewItems_", "OK");
  4166.         } else {
  4167.           console.log("showNewItems_", "NG");
  4168.         }
  4169.  
  4170.  
  4171.         if ((mclp.flushActiveItems_ || 0).length === 0) {
  4172.  
  4173.           const sfi = fnIntegrity(mclp.flushActiveItems_);
  4174.           if (sfi === '0.156.86') {
  4175.             // https://www.youtube.com/s/desktop/f61c8d85/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  4176.  
  4177.             // added "refreshOffsetContainerHeight_"
  4178.  
  4179.             //   f.flushActiveItems_ = function() {
  4180.             //     var a = this;
  4181.             //     if (0 < this.activeItems_.length)
  4182.             //         if (this.canScrollToBottom_()) {
  4183.             //             var b = Math.max(this.visibleItems.length + this.activeItems_.length - this.data.maxItemsToDisplay, 0);
  4184.             //             b && this.splice("visibleItems", 0, b);
  4185.             //             if (this.isSmoothScrollEnabled_() || this.dockableMessages.length)
  4186.             //                 this.preinsertHeight_ = this.items.clientHeight;
  4187.             //             this.activeItems_.unshift("visibleItems");
  4188.             //             try {
  4189.             //                 this.push.apply(this, this.activeItems_)
  4190.             //             } catch (c) {
  4191.             //                 fm(c)
  4192.             //             }
  4193.             //             this.activeItems_ = [];
  4194.             //             this.isSmoothScrollEnabled_() ? this.canScrollToBottom_() && Mw(function() {
  4195.             //                 a.showNewItems_()
  4196.             //             }) : Mw(function() {
  4197.             //                 a.refreshOffsetContainerHeight_();
  4198.             //                 a.maybeScrollToBottom_()
  4199.             //             })
  4200.             //         } else
  4201.             //             this.activeItems_.length > this.data.maxItemsToDisplay && this.activeItems_.splice(0, this.activeItems_.length - this.data.maxItemsToDisplay)
  4202.             // }
  4203.             // ;
  4204.  
  4205.           } else if (sfi === '0.150.84') {
  4206.             // https://www.youtube.com/s/desktop/e4d15d2c/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  4207.             // var b = Math.max(this.visibleItems.length + this.activeItems_.length - this.data.maxItemsToDisplay, 0);
  4208.             //     b && this.splice("visibleItems", 0, b);
  4209.             //     if (this.isSmoothScrollEnabled_() || this.dockableMessages.length)
  4210.             //         this.preinsertHeight_ = this.items.clientHeight;
  4211.             //     this.activeItems_.unshift("visibleItems");
  4212.             //     try {
  4213.             //         this.push.apply(this, this.activeItems_)
  4214.             //     } catch (c) {
  4215.             //         nm(c)
  4216.             //     }
  4217.             //     this.activeItems_ = [];
  4218.             //     this.isSmoothScrollEnabled_() ? this.canScrollToBottom_() && zQ(function() {
  4219.             //         a.showNewItems_()
  4220.             //     }) : zQ(function() {
  4221.             //         a.maybeScrollToBottom_()
  4222.             //     })
  4223.           } else if (sfi === '0.137.81' || sfi === '0.138.81') {
  4224.             // e.g. https://www.youtube.com/yts/jsbin/live_chat_polymer-vflCyWEBP/live_chat_polymer.js
  4225.           } else {
  4226.             assertor(() => fnIntegrity(mclp.flushActiveItems_, '0.150.84'));
  4227.           }
  4228.  
  4229.           let hasMoreMessageState = !ENABLE_SHOW_MORE_BLINKER ? -1 : 0;
  4230.  
  4231.           let contensWillChangeController = null;
  4232.  
  4233.           mclp.flushActiveItems66_ = mclp.flushActiveItems_;
  4234.  
  4235.           mclp.flushActiveItems78_ = async function (tid) {
  4236.             try {
  4237.               if (tid !== mlf) return;
  4238.               const lockedMaxItemsToDisplay = this.data.maxItemsToDisplay944;
  4239.               let logger = false;
  4240.               const cnt = this;
  4241.               let immd = cnt.__intermediate_delay__;
  4242.               await new Promise(requestAnimationFrame);
  4243.  
  4244.               if (tid !== mlf || cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4245.               if (!cnt.activeItems_ || cnt.activeItems_.length === 0) return;
  4246.  
  4247.               mlf++;
  4248.               if (mlg > 1e9) mlg = 9;
  4249.               ++mlg;
  4250.  
  4251.               const tmpMaxItemsCount = this.data.maxItemsToDisplay;
  4252.               const reducedMaxItemsToDisplay = MAX_ITEMS_FOR_FULL_FLUSH;
  4253.               let changeMaxItemsToDisplay = false;
  4254.               const activeItemsLen = this.activeItems_.length;
  4255.               if (activeItemsLen > tmpMaxItemsCount && tmpMaxItemsCount > 0) {
  4256.                 logger = true;
  4257.  
  4258.                 groupCollapsed("YouTube Super Fast Chat", " | flushActiveItems78_");
  4259.  
  4260.                 logger && console.log('[Begin]')
  4261.  
  4262.                 console.log('this.activeItems_.length > N', activeItemsLen, tmpMaxItemsCount);
  4263.                 if (ENABLE_REDUCED_MAXITEMS_FOR_FLUSH && lockedMaxItemsToDisplay === tmpMaxItemsCount && lockedMaxItemsToDisplay !== reducedMaxItemsToDisplay) {
  4264.                   console.log('reduce maxitems');
  4265.                   if (tmpMaxItemsCount > reducedMaxItemsToDisplay) {
  4266.                     // as all the rendered chats are already "outdated"
  4267.                     // all old chats shall remove and reduced number of few chats will be rendered
  4268.                     // then restore to the original number
  4269.                     changeMaxItemsToDisplay = true;
  4270.                     this.data.maxItemsToDisplay = reducedMaxItemsToDisplay;
  4271.                     console.log(`'maxItemsToDisplay' is reduced from ${tmpMaxItemsCount} to ${reducedMaxItemsToDisplay}.`)
  4272.                   }
  4273.                   this.activeItems_.splice(0, activeItemsLen - this.data.maxItemsToDisplay);
  4274.                   //   console.log('changeMaxItemsToDisplay 01', this.data.maxItemsToDisplay, oMaxItemsToDisplay, reducedMaxItemsToDisplay)
  4275.  
  4276.                   console.log('new this.activeItems_.length > N', this.activeItems_.length);
  4277.                 } else {
  4278.                   this.activeItems_.splice(0, activeItemsLen - (tmpMaxItemsCount < 900 ? tmpMaxItemsCount : 900));
  4279.  
  4280.                   console.log('new this.activeItems_.length > N', this.activeItems_.length);
  4281.                 }
  4282.               }
  4283.               // it is found that it will render all stacked chats after switching back from background
  4284.               // to avoid lagging in popular livestream with massive chats, trim first before rendering.
  4285.               // this.activeItems_.length > this.data.maxItemsToDisplay && this.activeItems_.splice(0, this.activeItems_.length - this.data.maxItemsToDisplay);
  4286.  
  4287.  
  4288.               const items = (cnt.$ || 0).items;
  4289.  
  4290.               if (USE_WILL_CHANGE_CONTROLLER) {
  4291.                 if (contensWillChangeController && contensWillChangeController.element !== items) {
  4292.                   contensWillChangeController.release();
  4293.                   contensWillChangeController = null;
  4294.                 }
  4295.                 if (!contensWillChangeController) contensWillChangeController = new WillChangeController(items, 'contents');
  4296.               }
  4297.               const wcController = contensWillChangeController;
  4298.               cnt.__intermediate_delay__ = Promise.all([cnt.__intermediate_delay__ || null, immd || null]);
  4299.               wcController && wcController.beforeOper();
  4300.               await Promise.resolve();
  4301.               const acItems = cnt.activeItems_;
  4302.               const len1 = acItems.length;
  4303.               if (!len1) console.warn('cnt.activeItems_.length = 0');
  4304.               let waitFor = [];
  4305.  
  4306.  
  4307.               /** @type {Set<string>} */
  4308.               const imageLinks = new Set();
  4309.  
  4310.               if (ENABLE_PRELOAD_THUMBNAIL || EMOJI_IMAGE_SINGLE_THUMBNAIL || AUTHOR_PHOTO_SINGLE_THUMBNAIL) {
  4311.                 for (const item of acItems) {
  4312.                   fixLiveChatItem(item, imageLinks);
  4313.                 }
  4314.               }
  4315.               if (ENABLE_PRELOAD_THUMBNAIL && kptPF !== null && (kptPF & (8 | 4)) && imageLinks.size > 0) {
  4316.                 if (emojiPrefetched.size > PREFETCH_LIMITED_SIZE_EMOJI) emojiPrefetched.clear();
  4317.                 if (authorPhotoPrefetched.size > PREFETCH_LIMITED_SIZE_AUTHOR_PHOTO) authorPhotoPrefetched.clear();
  4318.  
  4319.                 // reference: https://github.com/Yuanfang-fe/Blog-X/issues/34
  4320.                 const rel = kptPF & 8 ? 'subresource' : kptPF & 16 ? 'preload' : kptPF & 4 ? 'prefetch' : '';
  4321.                 // preload performs the high priority fetching.
  4322.                 // prefetch delays the chat display if the video resoruce is demanding.
  4323.  
  4324.                 if (rel) {
  4325.  
  4326.                   imageLinks.forEach(imageLink => {
  4327.                     let d = false;
  4328.                     const isEmoji = imageLink.includes('/emoji/');
  4329.                     const pretechedSet = isEmoji ? emojiPrefetched : authorPhotoPrefetched;
  4330.                     if (!pretechedSet.has(imageLink)) {
  4331.                       pretechedSet.add(imageLink);
  4332.                       d = true;
  4333.                     }
  4334.                     if (d) {
  4335.                       waitFor.push(linker(null, rel, imageLink, 'image'));
  4336.  
  4337.                     }
  4338.                   })
  4339.  
  4340.                 }
  4341.  
  4342.               }
  4343.  
  4344.               const noVisibleItem1 = ((cnt.visibleItems || 0).length || 0) === 0;
  4345.               skipDontRender = noVisibleItem1;
  4346.               // console.log('ss1', Date.now())
  4347.               if (waitFor.length > 0) {
  4348.                 await Promise.race([new Promise(r => setTimeout(r, 250)), Promise.all(waitFor)]);
  4349.               }
  4350.               waitFor.length = 0;
  4351.               waitFor = null;
  4352.               // console.log('ss2', Date.now())
  4353.               cnt.flushActiveItems66_();
  4354.               const noVisibleItem2 = ((cnt.visibleItems || 0).length || 0) === 0;
  4355.               skipDontRender = noVisibleItem2;
  4356.               const len2 = cnt.activeItems_.length;
  4357.               const bAsync = len1 !== len2;
  4358.               await Promise.resolve();
  4359.               if (wcController) {
  4360.                 if (bAsync) {
  4361.                   cnt.async(() => {
  4362.                     wcController.afterOper();
  4363.                   });
  4364.                 } else {
  4365.                   wcController.afterOper();
  4366.                 }
  4367.               }
  4368.               if (changeMaxItemsToDisplay && this.data.maxItemsToDisplay === reducedMaxItemsToDisplay && tmpMaxItemsCount > reducedMaxItemsToDisplay) {
  4369.                 this.data.maxItemsToDisplay = tmpMaxItemsCount;
  4370.  
  4371.                 logger && console.log(`'maxItemsToDisplay' is restored from ${reducedMaxItemsToDisplay} to ${tmpMaxItemsCount}.`);
  4372.                 //   console.log('changeMaxItemsToDisplay 02', this.data.maxItemsToDisplay, oMaxItemsToDisplay, reducedMaxItemsToDisplay)
  4373.               } else if (changeMaxItemsToDisplay) {
  4374.  
  4375.                 logger && console.log(`'maxItemsToDisplay' cannot be restored`, {
  4376.                   maxItemsToDisplay: this.data.maxItemsToDisplay,
  4377.                   reducedMaxItemsToDisplay,
  4378.                   originalMaxItemsToDisplay: tmpMaxItemsCount
  4379.                 });
  4380.               }
  4381.               logger && console.log('[End]');
  4382.  
  4383.               logger && console.groupEnd();
  4384.  
  4385.               if (noVisibleItem1 && !noVisibleItem2) {
  4386.                 // fix possible no auto scroll issue.
  4387.                 setTimeout(() => cnt.setAtBottom(), 1);
  4388.               }
  4389.  
  4390.               if (!ENABLE_NO_SMOOTH_TRANSFORM) {
  4391.  
  4392.  
  4393.                 const ff = () => {
  4394.  
  4395.                   if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4396.                   //   if (tid !== mlf || cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4397.                   if (!cnt.atBottom && cnt.allowScroll && cnt.hasUserJustInteracted11_ && !cnt.hasUserJustInteracted11_()) {
  4398.  
  4399.                     if (typeof window.nextBrowserTick !== 'function') {
  4400.                       cnt.scrollToBottom_();
  4401.                       Promise.resolve().then(() => {
  4402.                         if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4403.                         if (!cnt.canScrollToBottom_()) cnt.scrollToBottom_();
  4404.                       });
  4405.                     } else {
  4406.                       nextBrowserTick(() => {
  4407.                         if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4408.                         cnt.scrollToBottom_();
  4409.                       });
  4410.                     }
  4411.  
  4412.                   }
  4413.                 }
  4414.  
  4415.                 ff();
  4416.  
  4417.  
  4418.                 Promise.resolve().then(ff);
  4419.  
  4420.                 // requestAnimationFrame(ff);
  4421.               } else if (true) { // it might not be sticky to bottom when there is a full refresh.
  4422.  
  4423.                 const knt = cnt;
  4424.                 if (!scrollChatFn) {
  4425.                   const cnt = knt;
  4426.                   const f = () => {
  4427.                     const itemScroller = cnt.itemScroller;
  4428.                     if (!itemScroller || itemScroller.isConnected === false || cnt.isAttached === false) return;
  4429.                     if (!cnt.atBottom) {
  4430.                       cnt.scrollToBottom_();
  4431.                     } else if (itemScroller.scrollTop === 0) { // not yet interacted by user; cannot stick to bottom
  4432.                       itemScroller.scrollTop = itemScroller.scrollHeight;
  4433.                     }
  4434.                   };
  4435.                   if (typeof window.nextBrowserTick !== 'function') {
  4436.                     scrollChatFn = () => Promise.resolve().then(f).then(f);
  4437.                   } else {
  4438.                     scrollChatFn = () => nextBrowserTick(f);
  4439.                   }
  4440.                 }
  4441.  
  4442.                 if (!ENABLE_DELAYED_CHAT_OCCURRENCE) scrollChatFn();
  4443.               }
  4444.  
  4445.               return 1;
  4446.  
  4447.  
  4448.             } catch (e) {
  4449.               console.warn(e);
  4450.             }
  4451.           }
  4452.  
  4453.           mclp.flushActiveItems77_ = function () {
  4454.  
  4455.             return new Promise(resResolve => {
  4456.               try {
  4457.                 const cnt = this;
  4458.                 if (mlf > 1e9) mlf = 9;
  4459.                 let tid = ++mlf;
  4460.                 const hostElement = cnt.hostElement || cnt;
  4461.                 if (tid !== mlf || cnt.isAttached === false || hostElement.isConnected === false) return resResolve();
  4462.                 if (!cnt.activeItems_ || cnt.activeItems_.length === 0) return resResolve();
  4463.  
  4464.                 // 4 times to maxItems to avoid frequent trimming.
  4465.                 // 1 ... 10 ... 20 ... 30 ... 40 ... 50 ... 60 => 16 ... 20 ... 30 ..... 60 ... => 16
  4466.  
  4467.                 const lockedMaxItemsToDisplay = this.data.maxItemsToDisplay944;
  4468.                 this.activeItems_.length > lockedMaxItemsToDisplay * 4 && lockedMaxItemsToDisplay > 4 && this.activeItems_.splice(0, this.activeItems_.length - lockedMaxItemsToDisplay - 1);
  4469.                 if (cnt.canScrollToBottom_()) {
  4470.                   cnt.mutexPromiseFA78 = (cnt.mutexPromiseFA78 || Promise.resolve())
  4471.                     .then(() => cnt.flushActiveItems78_(tid)) // async function
  4472.                     .then((asyncResult) => {
  4473.                       resResolve(asyncResult); // either undefined or 1
  4474.                       resResolve = null;
  4475.                     }).catch((e) => {
  4476.                       console.warn(e);
  4477.                       if (resResolve) resResolve();
  4478.                     });
  4479.                 } else {
  4480.                   resResolve(2);
  4481.                   resResolve = null;
  4482.                 }
  4483.               } catch (e) {
  4484.                 console.warn(e);
  4485.                 if (resResolve) resResolve();
  4486.               }
  4487.  
  4488.  
  4489.             });
  4490.  
  4491.           }
  4492.  
  4493.           mclp.flushActiveItems_ = function () {
  4494.             const cnt = this;
  4495.  
  4496.             if (arguments.length !== 0 || !cnt.activeItems_ || !cnt.canScrollToBottom_) return cnt.flushActiveItems66_.apply(this, arguments);
  4497.  
  4498.             if (cnt.activeItems_.length === 0) {
  4499.               cnt.__intermediate_delay__ = null;
  4500.               return;
  4501.             }
  4502.  
  4503.             const cntData = ((cnt || 0).data || 0);
  4504.             if (cntData.maxItemsToDisplay944 === undefined) {
  4505.               cntData.maxItemsToDisplay944 = null;
  4506.               if (cntData.maxItemsToDisplay > MAX_ITEMS_FOR_TOTAL_DISPLAY) cntData.maxItemsToDisplay = MAX_ITEMS_FOR_TOTAL_DISPLAY;
  4507.               cntData.maxItemsToDisplay944 = cntData.maxItemsToDisplay || null;
  4508.             }
  4509.  
  4510.             // ignore previous __intermediate_delay__ and create a new one
  4511.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4512.               cnt.flushActiveItems77_().then(rt => {  // either undefined or 1 or 2
  4513.                 if (rt === 1) {
  4514.                   resolve(1); // success, scroll to bottom
  4515.                   if (hasMoreMessageState === 1) {
  4516.                     hasMoreMessageState = 0;
  4517.                     const showMore = (cnt.$ || 0)['show-more'];
  4518.                     if (showMore) {
  4519.                       showMore.classList.remove('has-new-messages-miuzp');
  4520.                     }
  4521.                   }
  4522.                 }
  4523.                 else if (rt === 2) {
  4524.                   resolve(2); // success, trim
  4525.                   if (hasMoreMessageState === 0) {
  4526.                     hasMoreMessageState = 1;
  4527.                     const showMore = cnt.$['show-more'];
  4528.                     if (showMore) {
  4529.                       showMore.classList.add('has-new-messages-miuzp');
  4530.                     }
  4531.                   }
  4532.                 }
  4533.                 else resolve(-1); // skip
  4534.               }).catch(e => {
  4535.                 console.warn(e);
  4536.               });
  4537.             });
  4538.  
  4539.           }
  4540.           console.log("flushActiveItems_", "OK");
  4541.         } else {
  4542.           console.log("flushActiveItems_", "NG");
  4543.         }
  4544.  
  4545.         if (SUPPRESS_refreshOffsetContainerHeight_ && typeof mclp.refreshOffsetContainerHeight_ === 'function' && !mclp.refreshOffsetContainerHeight26_ && mclp.refreshOffsetContainerHeight_.length === 0) {
  4546.           assertor(() => fnIntegrity(mclp.refreshOffsetContainerHeight_, '0.31.21'));
  4547.           mclp.refreshOffsetContainerHeight26_ = mclp.refreshOffsetContainerHeight_;
  4548.           mclp.refreshOffsetContainerHeight_ = function () {
  4549.             // var a = this.itemScroller.clientHeight;
  4550.             // this.itemOffset.style.height = this.items.clientHeight + "px";
  4551.             // this.bottomAlignMessages && (this.itemOffset.style.minHeight = a + "px")
  4552.           }
  4553.           console.log("refreshOffsetContainerHeight_", "OK");
  4554.         } else {
  4555.           console.log("refreshOffsetContainerHeight_", "NG");
  4556.         }
  4557.  
  4558.         mclp.delayFlushActiveItemsAfterUserAction11_ = async function () {
  4559.           try {
  4560.             if (mlg > 1e9) mlg = 9;
  4561.             const tid = ++mlg;
  4562.             const keepTrialCond = () => this.atBottom && this.allowScroll && (tid === mlg) && this.isAttached === true && this.activeItems_.length >= 1 && (this.hostElement || 0).isConnected === true;
  4563.             const runCond = () => this.canScrollToBottom_();
  4564.             if (!keepTrialCond()) return;
  4565.             if (runCond()) return this.flushActiveItems_() | 1; // avoid return promise
  4566.             await new Promise(r => setTimeout(r, 80));
  4567.             if (!keepTrialCond()) return;
  4568.             if (runCond()) return this.flushActiveItems_() | 1;
  4569.             await new Promise(requestAnimationFrame);
  4570.             if (runCond()) return this.flushActiveItems_() | 1;
  4571.           } catch (e) {
  4572.             console.warn(e);
  4573.           }
  4574.         }
  4575.  
  4576.         if ((mclp.atBottomChanged_ || 0).length === 1) {
  4577.           // note: if the scrolling is too frequent, the show more visibility might get wrong.
  4578.  
  4579.           const sfi = fnIntegrity(mclp.atBottomChanged_);
  4580.           if (sfi === '1.73.37') {
  4581.             // https://www.youtube.com/s/desktop/e4d15d2c/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  4582.           } else if (sfi === '1.75.39') {
  4583.             // e.g. https://www.youtube.com/yts/jsbin/live_chat_polymer-vflCyWEBP/live_chat_polymer.js
  4584.           } else {
  4585.             assertor(() => fnIntegrity(mclp.atBottomChanged_, '1.73.37'));
  4586.           }
  4587.  
  4588.           const querySelector = HTMLElement.prototype.querySelector;
  4589.           const U = (element) => ({
  4590.             querySelector: (selector) => querySelector.call(element, selector)
  4591.           });
  4592.  
  4593.           let qid = 0;
  4594.           mclp.atBottomChanged_ = function (a) {
  4595.             let tid = ++qid;
  4596.             let b = this;
  4597.             a ? this.hideShowMoreAsync_ || (this.hideShowMoreAsync_ = this.async(function () {
  4598.               if (tid !== qid) return;
  4599.               U(b.hostElement).querySelector("#show-more").style.visibility = "hidden"
  4600.             }, 200)) : (this.hideShowMoreAsync_ && this.cancelAsync(this.hideShowMoreAsync_),
  4601.               this.hideShowMoreAsync_ = null,
  4602.               U(this.hostElement).querySelector("#show-more").style.visibility = "visible")
  4603.           }
  4604.  
  4605.           console.log("atBottomChanged_", "OK");
  4606.         } else {
  4607.           console.log("atBottomChanged_", "NG");
  4608.         }
  4609.  
  4610.         if ((mclp.onScrollItems_ || 0).length === 1) {
  4611.  
  4612.           assertor(() => fnIntegrity(mclp.onScrollItems_, '1.17.9'));
  4613.           mclp.onScrollItems66_ = mclp.onScrollItems_;
  4614.           mclp.onScrollItems77_ = async function (evt) {
  4615.             if (myw > 1e9) myw = 9;
  4616.             let tid = ++myw;
  4617.  
  4618.             await new Promise(requestAnimationFrame);
  4619.  
  4620.             if (tid !== myw) {
  4621.               return;
  4622.             }
  4623.  
  4624.             const cnt = this;
  4625.  
  4626.             await Promise.resolve();
  4627.             if (USE_OPTIMIZED_ON_SCROLL_ITEMS) {
  4628.               await Promise.resolve().then(() => {
  4629.                 this.ytRendererBehavior.onScroll(evt);
  4630.               }).then(() => {
  4631.                 if (this.canScrollToBottom_()) {
  4632.                   const hasUserJustInteracted = this.hasUserJustInteracted11_ ? this.hasUserJustInteracted11_() : true;
  4633.                   if (hasUserJustInteracted) {
  4634.                     // only when there is an user action
  4635.                     this.setAtBottom();
  4636.                     return 1;
  4637.                   }
  4638.                 } else {
  4639.                   // no message inserting
  4640.                   this.setAtBottom();
  4641.                   return 1;
  4642.                 }
  4643.               }).then((r) => {
  4644.  
  4645.                 if (this.activeItems_.length) {
  4646.  
  4647.                   if (this.canScrollToBottom_()) {
  4648.                     this.flushActiveItems_();
  4649.                     return 1 && r;
  4650.                   } else if (this.atBottom && this.allowScroll && (this.hasUserJustInteracted11_ && this.hasUserJustInteracted11_())) {
  4651.                     // delayed due to user action
  4652.                     this.delayFlushActiveItemsAfterUserAction11_ && this.delayFlushActiveItemsAfterUserAction11_();
  4653.                     return 0;
  4654.                   }
  4655.                 }
  4656.               }).then((r) => {
  4657.                 if (r) {
  4658.                   // ensure setAtBottom is correctly set
  4659.                   this.setAtBottom();
  4660.                 }
  4661.               });
  4662.             } else {
  4663.               cnt.onScrollItems66_(evt);
  4664.             }
  4665.  
  4666.             await Promise.resolve();
  4667.  
  4668.           }
  4669.  
  4670.           mclp.onScrollItems_ = function (evt) {
  4671.  
  4672.             const cnt = this;
  4673.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4674.               cnt.onScrollItems77_(evt).then(() => {
  4675.                 resolve();
  4676.               });
  4677.             });
  4678.           }
  4679.           console.log("onScrollItems_", "OK");
  4680.         } else {
  4681.           console.log("onScrollItems_", "NG");
  4682.         }
  4683.  
  4684.         if ((mclp.handleLiveChatActions_ || 0).length === 1) {
  4685.  
  4686.           const sfi = fnIntegrity(mclp.handleLiveChatActions_);
  4687.           if (sfi === '1.39.20') {
  4688.             // TBC
  4689.           } else if (sfi === '1.31.17') {
  4690.             // original
  4691.           } else {
  4692.             assertor(() => fnIntegrity(mclp.handleLiveChatActions_, '1.31.17'));
  4693.           }
  4694.  
  4695.           mclp.handleLiveChatActions66_ = mclp.handleLiveChatActions_;
  4696.  
  4697.           mclp.handleLiveChatActions77_ = async function (arr) {
  4698.             if (typeof (arr || 0).length !== 'number') {
  4699.               this.handleLiveChatActions66_(arr);
  4700.               return;
  4701.             }
  4702.             if (mzt > 1e9) mzt = 9;
  4703.             let tid = ++mzt;
  4704.  
  4705.             if (zarr === null) zarr = arr;
  4706.             else Array.prototype.push.apply(zarr, arr);
  4707.             arr = null;
  4708.  
  4709.             await new Promise(requestAnimationFrame);
  4710.  
  4711.             if (tid !== mzt || zarr === null) {
  4712.               return;
  4713.             }
  4714.  
  4715.             const carr = zarr;
  4716.             zarr = null;
  4717.  
  4718.             await Promise.resolve();
  4719.             this.handleLiveChatActions66_(carr);
  4720.             await Promise.resolve();
  4721.  
  4722.           }
  4723.  
  4724.           mclp.handleLiveChatActions_ = function (arr) {
  4725.  
  4726.             const cnt = this;
  4727.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4728.               cnt.handleLiveChatActions77_(arr).then(() => {
  4729.                 resolve();
  4730.               });
  4731.             });
  4732.           }
  4733.           console.log("handleLiveChatActions_", "OK");
  4734.         } else {
  4735.           console.log("handleLiveChatActions_", "NG");
  4736.         }
  4737.  
  4738.         mclp.hasUserJustInteracted11_ = () => {
  4739.           const t = dateNow();
  4740.           return (t - lastWheel < 80) || currentMouseDown || currentTouchDown || (t - lastUserInteraction < 80);
  4741.         }
  4742.  
  4743.         if ((mclp.canScrollToBottom_ || 0).length === 0) {
  4744.  
  4745.           assertor(() => fnIntegrity(mclp.canScrollToBottom_, '0.9.5'));
  4746.  
  4747.           mclp.canScrollToBottom_ = function () {
  4748.             return this.atBottom && this.allowScroll && !this.hasUserJustInteracted11_();
  4749.           }
  4750.  
  4751.           console.log("canScrollToBottom_", "OK");
  4752.         } else {
  4753.           console.log("canScrollToBottom_", "NG");
  4754.         }
  4755.  
  4756.         if (ENABLE_NO_SMOOTH_TRANSFORM) {
  4757.  
  4758.           mclp.isSmoothScrollEnabled_ = function () {
  4759.             return false;
  4760.           }
  4761.  
  4762.           mclp.maybeResizeScrollContainer_ = function () {
  4763.             //
  4764.           }
  4765.  
  4766.           mclp.refreshOffsetContainerHeight_ = function () {
  4767.             //
  4768.           }
  4769.  
  4770.           mclp.smoothScroll_ = function () {
  4771.             //
  4772.           }
  4773.  
  4774.           mclp.resetSmoothScroll_ = function () {
  4775.             //
  4776.           }
  4777.           console.log("ENABLE_NO_SMOOTH_TRANSFORM", "OK");
  4778.         } else {
  4779.           console.log("ENABLE_NO_SMOOTH_TRANSFORM", "NG");
  4780.         }
  4781.  
  4782.         if (typeof mclp.forEachItem_ === 'function' && !mclp.forEachItem66_ && skipErrorForhandleAddChatItemAction_ && mclp.forEachItem_.length === 1) {
  4783.  
  4784.           mclp.forEachItem66_ = mclp.forEachItem_;
  4785.           mclp.forEachItem_ = function (a) {
  4786.  
  4787.             // ƒ (a){this.visibleItems.forEach(a.bind(this,"visibleItems"));this.activeItems_.forEach(a.bind(this,"activeItems_"))}
  4788.  
  4789.             try {
  4790.  
  4791.               let items801 = false;
  4792.               if (typeof a === 'function') {
  4793.                 const items = this.items;
  4794.                 if (items instanceof HTMLDivElement) {
  4795.                   const ev = this.visibleItems;
  4796.                   const ea = this.activeItems_;
  4797.                   if (ev && ea && ev.length >= 0 && ea.length >= 0) {
  4798.                     items801 = items;
  4799.                   }
  4800.                 }
  4801.               }
  4802.  
  4803.               if (items801) {
  4804.                 items801.__children801__ = 1;
  4805.                 const res = this.forEachItem66_(a);
  4806.                 items801.__children801__ = 0;
  4807.                 return res;
  4808.               }
  4809.  
  4810.             } catch (e) { }
  4811.             return this.forEachItem66_(a);
  4812.  
  4813.  
  4814.             // this.visibleItems.forEach((val, idx, arr)=>{
  4815.             //   a.call(this, 'visibleItems', val, idx, arr);
  4816.             // });
  4817.  
  4818.             // this.activeItems_.forEach((val, idx, arr)=>{
  4819.             //   a.call(this, 'activeItems_', val, idx, arr);
  4820.             // });
  4821.  
  4822.  
  4823.  
  4824.           }
  4825.  
  4826.  
  4827.         }
  4828.  
  4829.         if (typeof mclp.handleAddChatItemAction_ === 'function' && !mclp.handleAddChatItemAction66_ && FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION && (EMOJI_IMAGE_SINGLE_THUMBNAIL || AUTHOR_PHOTO_SINGLE_THUMBNAIL)) {
  4830.  
  4831.           mclp.handleAddChatItemAction66_ = mclp.handleAddChatItemAction_;
  4832.           mclp.handleAddChatItemAction_ = function (a) {
  4833.             try {
  4834.               if (a && typeof a === 'object' && !('length' in a)) {
  4835.                 fixLiveChatItem(a.item, null);
  4836.                 console.assert(arguments[0] === a);
  4837.               }
  4838.             } catch (e) { console.warn(e) }
  4839.             let res;
  4840.             if (skipErrorForhandleAddChatItemAction_) { // YouTube Native Engine Issue
  4841.               try {
  4842.                 res = this.handleAddChatItemAction66_.apply(this, arguments);
  4843.               } catch (e) {
  4844.                 if (e && (e.message || '').includes('.querySelector(')) {
  4845.                   console.log("skipErrorForhandleAddChatItemAction_", e.message);
  4846.                 } else {
  4847.                   throw e;
  4848.                 }
  4849.               }
  4850.             } else {
  4851.               res = this.handleAddChatItemAction66_.apply(this, arguments);
  4852.             }
  4853.             return res;
  4854.           }
  4855.  
  4856.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION) console.log("handleAddChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION ]", "OK");
  4857.         } else {
  4858.  
  4859.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION) console.log("handleAddChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION ]", "OK");
  4860.         }
  4861.  
  4862.  
  4863.         if (typeof mclp.handleReplaceChatItemAction_ === 'function' && !mclp.handleReplaceChatItemAction66_ && FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT && (EMOJI_IMAGE_SINGLE_THUMBNAIL || AUTHOR_PHOTO_SINGLE_THUMBNAIL)) {
  4864.  
  4865.           mclp.handleReplaceChatItemAction66_ = mclp.handleReplaceChatItemAction_;
  4866.           mclp.handleReplaceChatItemAction_ = function (a) {
  4867.             try {
  4868.               if (a && typeof a === 'object' && !('length' in a)) {
  4869.                 fixLiveChatItem(a.replacementItem, null);
  4870.                 console.assert(arguments[0] === a);
  4871.               }
  4872.             } catch (e) { console.warn(e) }
  4873.             return this.handleReplaceChatItemAction66_.apply(this, arguments);
  4874.           }
  4875.  
  4876.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT) console.log("handleReplaceChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT ]", "OK");
  4877.         } else {
  4878.  
  4879.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT) console.log("handleReplaceChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT ]", "OK");
  4880.         }
  4881.  
  4882.         console.log("[End]");
  4883.         console.groupEnd();
  4884.  
  4885.       }).catch(console.warn);
  4886.  
  4887.  
  4888.       const tickerContainerSetAttribute = function (attrName, attrValue) { // ensure '14.30000001%'.toFixed(1)
  4889.  
  4890.         let yd = (this.__dataHost || insp(this).__dataHost || 0).__data;
  4891.  
  4892.         if (arguments.length === 2 && attrName === 'style' && yd && attrValue) {
  4893.  
  4894.           // let v = yd.containerStyle.privateDoNotAccessOrElseSafeStyleWrappedValue_;
  4895.           let v = `${attrValue}`;
  4896.           // conside a ticker is 101px width
  4897.           // 1% = 1.01px
  4898.           // 0.2% = 0.202px
  4899.  
  4900.  
  4901.           const ratio1 = (yd.ratio * 100);
  4902.           if (ratio1 > -1) { // avoid NaN
  4903.  
  4904.             // countdownDurationMs
  4905.             // 600000 - 0.2%    <1% = 6s>  <0.2% = 1.2s>
  4906.             // 300000 - 0.5%    <1% = 3s>  <0.5% = 1.5s>
  4907.             // 150000 - 1%    <1% = 1.5s>
  4908.             // 75000 - 2%    <1% =0.75s > <2% = 1.5s>
  4909.             // 30000 - 5%    <1% =0.3s > <5% = 1.5s>
  4910.  
  4911.             // 99px * 5% = 4.95px
  4912.  
  4913.             // 15000 - 10%    <1% =0.15s > <10% = 1.5s>
  4914.  
  4915.  
  4916.             // 1% Duration
  4917.  
  4918.             let ratio2 = ratio1;
  4919.  
  4920.             const ydd = yd.data;
  4921.             if (ydd) {
  4922.  
  4923.               const d1 = ydd.durationSec;
  4924.               const d2 = ydd.fullDurationSec;
  4925.  
  4926.               // @ step timing [min. 0.2%]
  4927.               let numOfSteps = 500;
  4928.               if ((d1 === d2 || (d1 + 1 === d2)) && d1 > 1) {
  4929.                 if (d2 > 400) numOfSteps = 500; // 0.2%
  4930.                 else if (d2 > 200) numOfSteps = 200; // 0.5%
  4931.                 else if (d2 > 100) numOfSteps = 100; // 1%
  4932.                 else if (d2 > 50) numOfSteps = 50; // 2%
  4933.                 else if (d2 > 25) numOfSteps = 20; // 5% (max => 99px * 5% = 4.95px)
  4934.                 else numOfSteps = 20;
  4935.               }
  4936.               if (numOfSteps > TICKER_MAX_STEPS_LIMIT) numOfSteps = TICKER_MAX_STEPS_LIMIT;
  4937.               if (numOfSteps < 5) numOfSteps = 5;
  4938.  
  4939.               const rd = numOfSteps / 100.0;
  4940.  
  4941.               ratio2 = Math.round(ratio2 * rd) / rd;
  4942.  
  4943.               // ratio2 = Math.round(ratio2 * 5) / 5;
  4944.               ratio2 = ratio2.toFixed(1);
  4945.               v = v.replace(`${ratio1}%`, `${ratio2}%`).replace(`${ratio1}%`, `${ratio2}%`);
  4946.  
  4947.               if (yd.__style_last__ === v) return;
  4948.               yd.__style_last__ = v;
  4949.               // do not consider any delay here.
  4950.               // it shall be inside the looping for all properties changes. all the css background ops are in the same microtask.
  4951.  
  4952.             }
  4953.           }
  4954.  
  4955.           HTMLElement.prototype.setAttribute.call(dr(this), attrName, v);
  4956.  
  4957.  
  4958.         } else {
  4959.           HTMLElement.prototype.setAttribute.apply(dr(this), arguments);
  4960.         }
  4961.  
  4962.       };
  4963.  
  4964.  
  4965.       const fpTicker = (renderer) => {
  4966.         const cnt = insp(renderer);
  4967.         assertor(() => typeof (cnt || 0).is === 'string');
  4968.         assertor(() => ((cnt || 0).hostElement || 0).nodeType === 1);
  4969.         const container = (cnt.$ || 0).container;
  4970.         if (container) {
  4971.           assertor(() => (container || 0).nodeType === 1);
  4972.           assertor(() => typeof container.setAttribute === 'function');
  4973.           container.setAttribute = tickerContainerSetAttribute;
  4974.         } else {
  4975.           console.warn(`"container" does not exist in ${cnt.is}`);
  4976.         }
  4977.       };
  4978.  
  4979.  
  4980.       const tags = [
  4981.         "yt-live-chat-ticker-paid-message-item-renderer",
  4982.         "yt-live-chat-ticker-paid-sticker-item-renderer",
  4983.         "yt-live-chat-ticker-renderer",
  4984.         "yt-live-chat-ticker-sponsor-item-renderer"
  4985.       ];
  4986.  
  4987.       const tagsItemRenderer = [
  4988.         "yt-live-chat-ticker-paid-message-item-renderer",
  4989.         "yt-live-chat-ticker-paid-sticker-item-renderer",
  4990.         "yt-live-chat-ticker-renderer",
  4991.         "yt-live-chat-ticker-sponsor-item-renderer"
  4992.       ];
  4993.  
  4994.  
  4995.       Promise.all(tags.map(tag => customElements.whenDefined(tag))).then(() => {
  4996.  
  4997.         mightFirstCheckOnYtInit();
  4998.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-ticker-... hacks");
  4999.         console.log("[Begin]");
  5000.  
  5001.         let dummyValueForStyleReturn = null;
  5002.  
  5003.         const genDummyValueForStyleReturn = () => {
  5004.           let s = `--nx:82;`
  5005.           let ro = {
  5006.             "privateDoNotAccessOrElseSafeStyleWrappedValue_": s,
  5007.             "implementsGoogStringTypedString": true
  5008.           };
  5009.           ro.getTypedStringValue = ro.toString = function () { return this.privateDoNotAccessOrElseSafeStyleWrappedValue_ };
  5010.           return ro;
  5011.         }
  5012.  
  5013.         let isCSSPropertySupported_ = null;
  5014.         const isCSSPropertySupported = () => {
  5015.  
  5016.           // @property --ticker-rtime
  5017.  
  5018.           if (typeof isCSSPropertySupported_ === 'boolean') return isCSSPropertySupported_;
  5019.           isCSSPropertySupported_ = false;
  5020.  
  5021.           if (typeof CSS !== 'object' || typeof (CSS || 0).registerProperty !== 'function') return false;
  5022.           const documentElement = document.documentElement;
  5023.           if (!documentElement) {
  5024.             console.warn('document.documentElement is not found');
  5025.             return false;
  5026.           }
  5027.           if (`${getComputedStyleCached(documentElement).getPropertyValue('--ticker-rtime')}`.length === 0) {
  5028.             return false;
  5029.           }
  5030.  
  5031.           const ae = animate.call(documentElement,
  5032.             [
  5033.               { '--ticker-rtime': '70%' },
  5034.               { '--ticker-rtime': '30%' }
  5035.             ],
  5036.             {
  5037.               fill: "forwards",
  5038.               duration: 1000 * 40,
  5039.               easing: 'linear'
  5040.             }
  5041.           );
  5042.  
  5043.           let animatedValue = getComputedStyleCached(document.documentElement).getPropertyValue('--ticker-rtime');
  5044.           ae.finish();
  5045.           if (`${animatedValue}`.length !== 3) return false;
  5046.  
  5047.           isCSSPropertySupported_ = true;
  5048.           return true;
  5049.  
  5050.         };
  5051.  
  5052.  
  5053.         let windowShownAt = -1;
  5054.         const setupEventForWindowShownAt = () => {
  5055.           window.addEventListener('visibilitychange', () => {
  5056.             if (document.visibilityState === 'visible') windowShownAt = Date.now();
  5057.             else windowShownAt = 0;
  5058.           }, false);
  5059.         }
  5060.  
  5061.         const dProto = {
  5062.  
  5063.           attachedForTickerInit: function () {
  5064.  
  5065.             fpTicker(this.hostElement || this);
  5066.             return this.attached77();
  5067.  
  5068.           },
  5069.  
  5070.  
  5071.           // doAnimator
  5072.  
  5073.           _makeAnimator: function () {
  5074.             if (this._r782) return;
  5075.             // if (!this.isAttached) return;
  5076.             if (!this._runnerAE) {
  5077.               /** @type {HTMLElement | null} */
  5078.               const aElement = (this.$ || 0).container;
  5079.               if (!aElement) return console.warn("this.$.container is undefined");
  5080.               const da = this.data;
  5081.               if (!da || !da.startBackgroundColor || !da.endBackgroundColor) return console.warn("this.data is undefined or incorrect");
  5082.               const c1 = this.colorFromDecimal(da.startBackgroundColor);
  5083.               const c2 = this.colorFromDecimal(da.endBackgroundColor);
  5084.               if (typeof c1 !== 'string' || typeof c2 !== 'string') return console.warn('c1, c2 is not a string');
  5085.  
  5086.               // if (!this.__tickerBackgroundInitialChecked__) {
  5087.               //   this.constructor.prototype.__tickerBackgroundInitialChecked__ = true;
  5088.               //   console.log('__tickerBackgroundInitialChecked__')
  5089.               //   this._checkTickerBackgroundChanged();
  5090.               // }
  5091.  
  5092.               aElement.style.setProperty('--ticker-c1', c1);
  5093.               aElement.style.setProperty('--ticker-c2', c2);
  5094.               aElement.classList.add(runTickerClassName);
  5095.               const p = (this.countdownMs / this.countdownDurationMs) * 100;
  5096.               // this._aeStartV = this.countdownMs;
  5097.               // this._aeStartT = this.countdownDurationMs;
  5098.               if (!(p >= 0 && p <= 100)) {
  5099.                 console.warn('incorrect time ratio', p);
  5100.               } else {
  5101.                 /*
  5102.                 const u0 = p.toFixed(4) + '%';
  5103.                 this._runnerAE = animate.call(aElement,
  5104.                   [
  5105.                     { '--ticker-rtime': u0 },
  5106.                     { '--ticker-rtime': '0%' }
  5107.                   ]
  5108.                   ,
  5109.                   {
  5110.                     fill: "forwards",
  5111.                     duration: this.countdownMs,
  5112.                     easing: "linear"
  5113.                   }
  5114.                 );
  5115.                 */
  5116.  
  5117.                 let timingFn = 'linear';
  5118.  
  5119.                 const totalDuration = this.countdownDurationMs;
  5120.  
  5121.                 if (ATTEMPT_ANIMATED_TICKER_BACKGROUND === 'steps') {
  5122.  
  5123.                   // @ step timing [min. 0.2%]
  5124.                   let stepInterval = 0.2; // unit: %
  5125.                   if (totalDuration > 400000) stepInterval = 0.2;
  5126.                   else if (totalDuration > 200000) stepInterval = 0.5;
  5127.                   else if (totalDuration > 100000) stepInterval = 1;
  5128.                   else if (totalDuration > 50000) stepInterval = 2;
  5129.                   else if (totalDuration > 25000) stepInterval = 5;
  5130.                   else stepInterval = 5;
  5131.  
  5132.                   let numOfSteps = Math.round(100 / stepInterval);
  5133.  
  5134.                   if (numOfSteps > TICKER_MAX_STEPS_LIMIT) numOfSteps = TICKER_MAX_STEPS_LIMIT;
  5135.                   if (numOfSteps < 5) numOfSteps = 5;
  5136.  
  5137.                   timingFn = `steps(${numOfSteps}, end)`;
  5138.  
  5139.                 }
  5140.  
  5141.  
  5142.                 /** @type {Animation} */
  5143.                 const ae = animate.call(aElement,
  5144.                   [
  5145.                     { '--ticker-rtime': '100%' },
  5146.                     { '--ticker-rtime': '0%' }
  5147.                   ]
  5148.                   ,
  5149.                   {
  5150.                     fill: "forwards",
  5151.                     duration: totalDuration,
  5152.                     easing: timingFn
  5153.                   }
  5154.                 );
  5155.  
  5156.                 this._runnerAE = ae;
  5157.  
  5158.                 ae.onfinish = (event) => {
  5159.                   this.onfinish = null;
  5160.                   if (this._runnerAE !== ae) return;
  5161.                   if (this.isAttached === true && !this._r782 && ((this.$ || 0).container || 0).isConnected === true) {
  5162.                     this._aeFinished(event);
  5163.                   }
  5164.                 }
  5165.  
  5166.                 let bq = (1.0 - (this.countdownMs / totalDuration)) * totalDuration;
  5167.  
  5168.                 if (bq >= 0 && bq <= totalDuration) {
  5169.  
  5170.                   if (bq > totalDuration - 1) {
  5171.                     ae.currentTime = bq;
  5172.                     // setTimeout(() => {
  5173.                     //   if (this._runnerAE === ae && ae.onfinish) ae.onfinish();
  5174.                     // }, 1);
  5175.                   } else {
  5176.                     ae.currentTime = bq;
  5177.                   }
  5178.                 } else {
  5179.                   console.warn('Error on setting _runnerAE.currentTime!');
  5180.                 }
  5181.  
  5182.  
  5183.                 aeConstructor = ae.constructor; // constructor is from iframe
  5184.                 return ae;
  5185.               }
  5186.             } else {
  5187.               if (!aeConstructor) return console.warn('aeConstructor is undefined');
  5188.               // assume just time update
  5189.               const ae = this._runnerAE;
  5190.               if (!(ae instanceof aeConstructor)) return console.warn('this._runnerAE is not Animation');
  5191.               if (ae.playState !== 'paused') console.warn('ae.playState !== paused');
  5192.               let p = (this.countdownMs / this.countdownDurationMs) * 100;
  5193.               if (!(p >= 0 && p <= 100)) {
  5194.                 console.warn('incorrect time ratio', p);
  5195.               } else {
  5196.                 // let u0 = p.toFixed(4) + '%'
  5197.                 /*
  5198.                 ae.effect.setKeyframes([
  5199.                   { '--ticker-rtime': u0 },
  5200.                   { '--ticker-rtime': '0%' }
  5201.                 ]);
  5202.                 ae.effect.updateTiming({ duration: this.countdownMs });
  5203.                 */
  5204.                 // ae.currentTime = 0;
  5205.  
  5206.  
  5207.  
  5208.                 let bq = (1.0 - (this.countdownMs / this.countdownDurationMs)) * this.countdownDurationMs;
  5209.                 if (bq >= 0 && bq <= this.countdownDurationMs) {
  5210.  
  5211.                   this._runnerAE.currentTime = bq
  5212.                 } else {
  5213.                   console.warn('Error on setting _runnerAE.currentTime!');
  5214.                 }
  5215.  
  5216.  
  5217.                 ae.play();
  5218.                 return ae;
  5219.               }
  5220.             }
  5221.           },
  5222.  
  5223.           _aeFinished: function (event) {
  5224.  
  5225.             if (this._r782) return;
  5226.  
  5227.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5228.               this._throwOut();
  5229.               return;
  5230.             }
  5231.  
  5232.             if (!this._runnerAE) console.warn('Error in .updateTimeout; this._runnerAE is undefined');
  5233.  
  5234.             let lc = window.performance.now();
  5235.             this.countdownMs = Math.max(0, this.countdownMs - (lc - this.lastCountdownTimeMs));
  5236.             if (this.countdownMs > this.countdownDurationMs) this.countdownMs = this.countdownDurationMs;
  5237.             this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = lc;
  5238.             if (this.countdownMs > 76) console.warn('Warning: this.countdownMs is not zero when finished!', this.countdownMs, this, event); // just warning.
  5239.  
  5240.             this.countdownMs = 0;
  5241.             this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = null;
  5242.  
  5243.             if (this.isAttached) {
  5244.               let fastRemoved = false;
  5245.               if (Date.now() - windowShownAt < 80 && typeof this.requestRemoval === 'function') {
  5246.                 // no animation if the video page is switched from background to foreground
  5247.                 // this.hostElement.style.display = 'none';
  5248.                 const id = (this.data || 0).id || 0;
  5249.                 if (!id) this.data = { id: 1 }
  5250.                 try {
  5251.                   this.requestRemoval();
  5252.                   fastRemoved = true;
  5253.                 } catch (e) {
  5254.  
  5255.                 }
  5256.               }
  5257.  
  5258.               if (!fastRemoved) {
  5259.                 "auto" === this.hostElement.style.width && this.setContainerWidth();
  5260.                 this.slideDown();
  5261.               }
  5262.             }
  5263.  
  5264.  
  5265.  
  5266.           },
  5267.  
  5268.  
  5269.           /** @type {()} */
  5270.           _throwOut: function () {
  5271.             this._r782 = 1;
  5272.             Promise.resolve().then(() => {
  5273.               if (typeof this.requestRemoval === 'function') {
  5274.                 const id = (this.data || 0).id;
  5275.                 if (!id) this.data = { id: 1 };
  5276.                 try {
  5277.                   this.requestRemoval();
  5278.                 } catch (e) { }
  5279.               }
  5280.               this.detached();
  5281.               if (this.__dataClientsReady === true) this.__dataClientsReady = false;
  5282.               if (this.__dataEnabled === true) this.__dataEnabled = false;
  5283.               if (this.__dataReady === true) this.__dataReady = false;
  5284.               this.data = null;
  5285.               this.countdownMs = 0;
  5286.               this.lastCountdownTimeMs = null;
  5287.               const hm = this.hostElement || this;
  5288.               if (hm.parentNode) hm.remove();
  5289.               for (let t; t = hm.firstChild;) t.remove();
  5290.             }).catch(e => {
  5291.               console.warn(e);
  5292.             });
  5293.           },
  5294.  
  5295.  
  5296.           // doTimerFnModification
  5297.  
  5298.  
  5299.           /** @type {(a, b)} */
  5300.           startCountdownForTimerFnModA: function (a, b) { // .startCountdown(a.durationSec, a.fullDurationSec)
  5301.             try {
  5302.               // a.durationSec [s] => countdownMs [ms]
  5303.               // a.fullDurationSec [s] => countdownDurationMs [ms] OR countdownMs [ms]
  5304.               // lastCountdownTimeMs => raf ongoing
  5305.               // lastCountdownTimeMs = 0 when rafId = 0 OR countdownDurationMs = 0
  5306.  
  5307.               if (this._r782) return;
  5308.  
  5309.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5310.                 this._throwOut();
  5311.                 return;
  5312.               }
  5313.  
  5314.               // TimerFnModA
  5315.  
  5316.               b = void 0 === b ? 0 : b;
  5317.               if (void 0 !== a) {
  5318.  
  5319.                 this.countdownMs = 1E3 * a; // decreasing from durationSec[s] to zero
  5320.                 this.countdownDurationMs = b ? 1E3 * b : this.countdownMs; // constant throughout the animation
  5321.                 if (!(this.lastCountdownTimeMs || this.isAnimationPaused)) {
  5322.                   this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = performance.now()
  5323.                   this.rafId = 1
  5324.                   if (this._runnerAE) console.warn('Error in .startCountdown; this._runnerAE already created.')
  5325.                   this.detlaSincePausedSecs = 0;
  5326.                   const ae = this._makeAnimator();
  5327.                   if (!ae) console.warn('Error in startCountdown._makeAnimator()');
  5328.  
  5329.                   // if (playerProgressChangedArg1 === null) {
  5330.                   //   console.log('startCountdownForTimerFnModA', this.data)
  5331.                   // }
  5332.  
  5333.                   if (isPlayProgressTriggered && this.isAnimationPaused !== true && this.__ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED__) {
  5334.  
  5335.  
  5336.  
  5337.  
  5338.                     this.playerProgressSec = lastPlayerProgress > 0 ? lastPlayerProgress : 0; // save the progress first
  5339.                     this.isAnimationPaused = true; // trigger isAnimationPausedChanged
  5340.                     this.detlaSincePausedSecs = 0;
  5341.                     this._forceNoDetlaSincePausedSecs783 = 1; // reset this.detlaSincePausedSecs = 0 when resumed
  5342.  
  5343.                     relayPromise = relayPromise || new PromiseExternal();
  5344.  
  5345.                     relayPromise.then(() => {
  5346.                       if (this.isAttached === true && this.countdownDurationMs > 0 && this.isAnimationPaused === true && this.isReplayPaused !== true) {
  5347.                         this.isAnimationPaused = false;
  5348.                       }
  5349.                     });
  5350.  
  5351.  
  5352.                   }
  5353.  
  5354.  
  5355.  
  5356.                 }
  5357.               }
  5358.  
  5359.             } catch (e) {
  5360.               console.warn(e);
  5361.             }
  5362.  
  5363.           },
  5364.  
  5365.  
  5366.  
  5367.           /** @type {(a, b)} */
  5368.           startCountdownForTimerFnModT: function (a, b) { // .startCountdown(a.durationSec, a.fullDurationSec)
  5369.             try {
  5370.               // a.durationSec [s] => countdownMs [ms]
  5371.               // a.fullDurationSec [s] => countdownDurationMs [ms] OR countdownMs [ms]
  5372.               // lastCountdownTimeMs => raf ongoing
  5373.               // lastCountdownTimeMs = 0 when rafId = 0 OR countdownDurationMs = 0
  5374.  
  5375.               if (this._r782) return;
  5376.  
  5377.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5378.                 this._throwOut();
  5379.                 return;
  5380.               }
  5381.  
  5382.               // TimerFnModT
  5383.  
  5384.               // console.log('cProto.startCountdown', tag) // yt-live-chat-ticker-sponsor-item-renderer
  5385.               if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
  5386.               b = void 0 === b ? 0 : b;
  5387.               void 0 !== a && (this.countdownMs = 1E3 * a,
  5388.                 this.countdownDurationMs = b ? 1E3 * b : this.countdownMs,
  5389.                 this.ratio = 1,
  5390.                 this.lastCountdownTimeMs || this.isAnimationPaused || (this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = performance.now(),
  5391.                   this.rafId = rafHub.request(this.boundUpdateTimeout37_)))
  5392.  
  5393.             } catch (e) {
  5394.               console.warn(e);
  5395.             }
  5396.  
  5397.           },
  5398.  
  5399.  
  5400.           /** @type {(a,)} */
  5401.           updateTimeoutForTimerFnModA: function (a) {
  5402.  
  5403.             try {
  5404.  
  5405.               // _lastCountdownTimeMsX0 is required since performance.now() is not fully the same with rAF timestamp
  5406.  
  5407.               if (this._r782) return;
  5408.  
  5409.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5410.                 this._throwOut();
  5411.                 return;
  5412.               }
  5413.  
  5414.               // TimerFnModA
  5415.  
  5416.               if (!this._runnerAE) console.warn('Error in .updateTimeout; this._runnerAE is undefined');
  5417.               if (this.lastCountdownTimeMs !== this._lastCountdownTimeMsX0) {
  5418.                 this.countdownMs = Math.max(0, this.countdownMs - (a - (this.lastCountdownTimeMs || 0)));
  5419.               }
  5420.               if (this.countdownMs > this.countdownDurationMs) this.countdownMs = this.countdownDurationMs;
  5421.               if (this.isAttached && this.countdownMs) {
  5422.                 this.lastCountdownTimeMs = a
  5423.                 const ae = this._makeAnimator(); // request raf
  5424.                 if (!ae) console.warn('Error in startCountdown._makeAnimator()');
  5425.               } else {
  5426.                 (this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = null,
  5427.                   this.isAttached && ("auto" === this.hostElement.style.width && this.setContainerWidth(),
  5428.                     this.slideDown()));
  5429.               }
  5430.  
  5431.             } catch (e) {
  5432.               console.warn(e);
  5433.             }
  5434.  
  5435.  
  5436.           },
  5437.  
  5438.           /** @type {(a,)} */
  5439.           updateTimeoutForTimerFnModT: function (a) {
  5440.  
  5441.             try {
  5442.  
  5443.               // _lastCountdownTimeMsX0 is required since performance.now() is not fully the same with rAF timestamp
  5444.  
  5445.               if (this._r782) return;
  5446.  
  5447.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5448.                 this._throwOut();
  5449.                 return;
  5450.               }
  5451.  
  5452.               // TimerFnModT
  5453.  
  5454.               // console.log('cProto.updateTimeout', tag) // yt-live-chat-ticker-sponsor-item-renderer
  5455.               if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
  5456.               if (this.lastCountdownTimeMs !== this._lastCountdownTimeMsX0) {
  5457.                 this.countdownMs = Math.max(0, this.countdownMs - (a - (this.lastCountdownTimeMs || 0)));
  5458.               }
  5459.               // console.log(703, this.countdownMs)
  5460.               this.ratio = this.countdownMs / this.countdownDurationMs;
  5461.               this.isAttached && this.countdownMs ? (this.lastCountdownTimeMs = a,
  5462.                 this.rafId = rafHub.request(this.boundUpdateTimeout37_)) : (this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = null,
  5463.                   this.isAttached && ("auto" === this.hostElement.style.width && this.setContainerWidth(),
  5464.                     this.slideDown()))
  5465.  
  5466.  
  5467.             } catch (e) {
  5468.               console.warn(e);
  5469.             }
  5470.           },
  5471.  
  5472.           /** @type {(a,b)} */
  5473.           isAnimationPausedChangedForTimerFnModA: function (a, b) {
  5474.  
  5475.             if (this._r782) return;
  5476.  
  5477.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5478.               this._throwOut();
  5479.               return;
  5480.             }
  5481.             let forceNoDetlaSincePausedSecs783 = this._forceNoDetlaSincePausedSecs783;
  5482.             this._forceNoDetlaSincePausedSecs783 = 0;
  5483.  
  5484.             Promise.resolve().then(() => {
  5485.  
  5486.               if (a) {
  5487.  
  5488.                 if (this._runnerAE && this._runnerAE.playState === 'running') {
  5489.  
  5490.                   this._runnerAE.pause()
  5491.                   let lc = window.performance.now();
  5492.                   this.countdownMs = Math.max(0, this.countdownMs - (lc - this.lastCountdownTimeMs));
  5493.                   if (this.countdownMs > this.countdownDurationMs) this.countdownMs = this.countdownDurationMs;
  5494.                   this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = lc;
  5495.                 }
  5496.  
  5497.               } else if (!a && b) {
  5498.  
  5499.  
  5500.                 if (forceNoDetlaSincePausedSecs783) this.detlaSincePausedSecs = 0;
  5501.                 a = this.detlaSincePausedSecs ? (this.lastCountdownTimeMs || 0) + 1000 * this.detlaSincePausedSecs : (this.lastCountdownTimeMs || 0);
  5502.                 this.detlaSincePausedSecs = 0;
  5503.                 this.updateTimeout(a);
  5504.                 this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = window.performance.now();
  5505.  
  5506.               }
  5507.  
  5508.  
  5509.             }).catch(e => {
  5510.               console.log(e);
  5511.             });
  5512.  
  5513.  
  5514.  
  5515.           },
  5516.  
  5517.  
  5518.           /** @type {(a,b)} */
  5519.           isAnimationPausedChangedForTimerFnModT: function (a, b) {
  5520.  
  5521.             if (this._r782) return;
  5522.  
  5523.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5524.               this._throwOut();
  5525.               return;
  5526.             }
  5527.             let forceNoDetlaSincePausedSecs783 = this._forceNoDetlaSincePausedSecs783;
  5528.             this._forceNoDetlaSincePausedSecs783 = 0;
  5529.  
  5530.             Promise.resolve().then(() => {
  5531.  
  5532.               // TimerFnModT
  5533.  
  5534.               // ez++;
  5535.               // if(ez> 1e9) ez=9;
  5536.               if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
  5537.               a ? rafHub.cancel(this.rafId) : !a && b && (a = this.lastCountdownTimeMs || 0,
  5538.                 this.detlaSincePausedSecs && (a = (this.lastCountdownTimeMs || 0) + 1E3 * this.detlaSincePausedSecs,
  5539.                   this.detlaSincePausedSecs = 0),
  5540.                 this.boundUpdateTimeout37_(a),
  5541.                 this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = window.performance.now())
  5542.  
  5543.  
  5544.             }).catch(e => {
  5545.               console.log(e);
  5546.             });
  5547.  
  5548.  
  5549.  
  5550.           },
  5551.  
  5552.  
  5553.           /** @type {(a,b)} */
  5554.           computeContainerStyleForAnimatorEnabled: function (a, b) {
  5555.  
  5556.             if (this._r782) return;
  5557.  
  5558.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5559.               this._throwOut();
  5560.               return;
  5561.             }
  5562.  
  5563.             return (dummyValueForStyleReturn || (dummyValueForStyleReturn = genDummyValueForStyleReturn()));
  5564.  
  5565.           },
  5566.  
  5567.  
  5568.  
  5569.           /** @type {()} */
  5570.           handlePauseReplayForPlaybackProgressState: function () {
  5571.             if (!playerEventsByIframeRelay) return this.handlePauseReplay66.apply(this, arguments);
  5572.  
  5573.             if (onPlayStateChangePromise) {
  5574.  
  5575.               if (this.rtu > 1e9) this.rtu = this.rtu % 1e4;
  5576.               const tid = ++this.rtu;
  5577.  
  5578.               onPlayStateChangePromise.then(() => {
  5579.                 if (tid === this.rtu && !onPlayStateChangePromise) this.handlePauseReplay.apply(this, arguments);
  5580.               });
  5581.  
  5582.               return;
  5583.             }
  5584.  
  5585.             if (playerState !== 2) return;
  5586.             if (this.isAttached) {
  5587.               if (this.rtk > 1e9) this.rtk = this.rtk % 1e4;
  5588.               const tid = ++this.rtk;
  5589.               const tc = relayCount;
  5590.               foregroundPromiseFn().then(() => {
  5591.                 if (tid === this.rtk && tc === relayCount && playerState === 2 && _playerState === playerState) {
  5592.                   this.handlePauseReplay66();
  5593.                 }
  5594.  
  5595.               })
  5596.             }
  5597.           },
  5598.  
  5599.           /** @type {()} */
  5600.           handleResumeReplayForPlaybackProgressState: function () {
  5601.             if (!playerEventsByIframeRelay) return this.handleResumeReplay66.apply(this, arguments);
  5602.  
  5603.  
  5604.             if (onPlayStateChangePromise) {
  5605.  
  5606.               if (this.rtv > 1e9) this.rtv = this.rtv % 1e4;
  5607.               const tid = ++this.rtv;
  5608.  
  5609.               onPlayStateChangePromise.then(() => {
  5610.                 if (tid === this.rtv && !onPlayStateChangePromise) this.handleResumeReplay.apply(this, arguments);
  5611.               });
  5612.  
  5613.               return;
  5614.             }
  5615.  
  5616.  
  5617.             if (playerState !== 1) return;
  5618.             if (this.isAttached) {
  5619.               const tc = relayCount;
  5620.  
  5621.               relayPromise = relayPromise || new PromiseExternal();
  5622.               relayPromise.then(() => {
  5623.                 if (relayCount > tc && playerState === 1 && _playerState === playerState) {
  5624.                   this.handleResumeReplay66();
  5625.                 }
  5626.               });
  5627.             }
  5628.           },
  5629.  
  5630.           /** @type {(a,)} */
  5631.           handleReplayProgressForPlaybackProgressState: function (a) {
  5632.             if (this.isAttached) {
  5633.               const tid = ++this.rtk;
  5634.               foregroundPromiseFn().then(() => {
  5635.                 if (tid === this.rtk) {
  5636.                   this.handleReplayProgress66(a);
  5637.                 }
  5638.               })
  5639.             }
  5640.           }
  5641.  
  5642.  
  5643.         }
  5644.  
  5645.  
  5646.         for (const tag of tagsItemRenderer) { // ##tag##
  5647.           const dummy = document.createElement(tag);
  5648.  
  5649.           const cProto = getProto(dummy);
  5650.           if (!cProto || !cProto.attached) {
  5651.             console.warn(`proto.attached for ${tag} is unavailable.`);
  5652.             continue;
  5653.           }
  5654.  
  5655.           cProto.attached77 = cProto.attached;
  5656.  
  5657.           cProto.attached = dProto.attachedForTickerInit;
  5658.  
  5659.           let rafHackState = 0;
  5660.  
  5661.           let isTimingFunctionHackable = false;
  5662.  
  5663.           let urt = 0;
  5664.  
  5665.           if (typeof cProto.startCountdown === 'function' && typeof cProto.updateTimeout === 'function' && typeof cProto.isAnimationPausedChanged === 'function') {
  5666.  
  5667.             // console.log('startCountdown', typeof cProto.startCountdown)
  5668.             // console.log('updateTimeout', typeof cProto.updateTimeout)
  5669.             // console.log('isAnimationPausedChanged', typeof cProto.isAnimationPausedChanged)
  5670.  
  5671.             isTimingFunctionHackable = fnIntegrity(cProto.startCountdown, '2.66.37') && fnIntegrity(cProto.updateTimeout, '1.76.45') && fnIntegrity(cProto.isAnimationPausedChanged, '2.56.30')
  5672.  
  5673.           } else {
  5674.             console.log("ATTEMPT_ANIMATED_TICKER_BACKGROUND", ` ${tag}`, "Skip Timing Function Modification");
  5675.             continue;
  5676.           }
  5677.  
  5678.  
  5679.           if (ENABLE_RAF_HACK_TICKERS && rafHub !== null) {
  5680.  
  5681.             // cancelable - this.rafId < isAnimationPausedChanged >
  5682.             rafHackState = 1;
  5683.  
  5684.             if (isTimingFunctionHackable) {
  5685.               rafHackState = 2;
  5686.  
  5687.             } else {
  5688.               rafHackState = 4;
  5689.             }
  5690.  
  5691.           }
  5692.  
  5693.           const doAnimator = !!ATTEMPT_ANIMATED_TICKER_BACKGROUND && isTimingFunctionHackable && typeof KeyframeEffect === 'function' && typeof animate === 'function' && typeof cProto.computeContainerStyle === 'function' && typeof cProto.colorFromDecimal === 'function' && isCSSPropertySupported();
  5694.  
  5695.           const doRAFHack = rafHackState === 2;
  5696.  
  5697.           cProto._throwOut = dProto._throwOut;
  5698.  
  5699.           cProto._makeAnimator = doAnimator ? dProto._makeAnimator : null;
  5700.  
  5701.           cProto._aeFinished = doAnimator ? dProto._aeFinished : null;
  5702.  
  5703.  
  5704.           if (ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX) {
  5705.  
  5706.  
  5707.  
  5708.             if (typeof cProto.handlePauseReplay === 'function' && !cProto.handlePauseReplay66 && cProto.handlePauseReplay.length === 0) {
  5709.               urt++;
  5710.               assertor(() => fnIntegrity(cProto.handlePauseReplay, '0.12.4'));
  5711.             } else {
  5712.               console.log('Error for setting cProto.handlePauseReplay', tag)
  5713.             }
  5714.  
  5715.             if (typeof cProto.handleResumeReplay === 'function' && !cProto.handleResumeReplay66 && cProto.handlePauseReplay.length === 0) {
  5716.               urt++;
  5717.               assertor(() => fnIntegrity(cProto.handleResumeReplay, '0.8.2'));
  5718.             } else {
  5719.               console.log('Error for setting cProto.handleResumeReplay', tag)
  5720.             }
  5721.  
  5722.             if (typeof cProto.handleReplayProgress === 'function' && !cProto.handleReplayProgress66 && cProto.handleReplayProgress.length === 1) {
  5723.               urt++;
  5724.               assertor(() => fnIntegrity(cProto.handleReplayProgress, '1.16.13'));
  5725.             } else {
  5726.               console.log('Error for setting cProto.handleReplayProgress', tag)
  5727.             }
  5728.  
  5729.  
  5730.  
  5731.           }
  5732.  
  5733.           const ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED = ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX && urt === 3;
  5734.           cProto.__ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED__ = ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED;
  5735.  
  5736.           if (ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED) {
  5737.  
  5738.             cProto.rtk = 0;
  5739.             cProto.rtu = 0;
  5740.             cProto.rtv = 0;
  5741.  
  5742.             cProto.handlePauseReplay66 = cProto.handlePauseReplay;
  5743.             cProto.handlePauseReplay = dProto.handlePauseReplayForPlaybackProgressState;
  5744.  
  5745.             cProto.handleResumeReplay66 = cProto.handleResumeReplay;
  5746.             cProto.handleResumeReplay = dProto.handleResumeReplayForPlaybackProgressState;
  5747.  
  5748.             cProto.handleReplayProgress66 = cProto.handleReplayProgress;
  5749.             cProto.handleReplayProgress = dProto.handleReplayProgressForPlaybackProgressState;
  5750.  
  5751.           }
  5752.  
  5753.           const doTimerFnModification = (doRAFHack || doAnimator);
  5754.  
  5755.           if (doAnimator && windowShownAt < 0) {
  5756.             windowShownAt = 0;
  5757.             setupEventForWindowShownAt();
  5758.           }
  5759.  
  5760.           if (doTimerFnModification) {
  5761.  
  5762.             cProto.startCountdown = (
  5763.               doAnimator ? dProto.startCountdownForTimerFnModA : dProto.startCountdownForTimerFnModT
  5764.             );
  5765.  
  5766.             // _lastCountdownTimeMsX0 is required since performance.now() is not fully the same with rAF timestamp
  5767.             cProto.updateTimeout = (
  5768.               doAnimator ? dProto.updateTimeoutForTimerFnModA : dProto.updateTimeoutForTimerFnModT
  5769.             );
  5770.  
  5771.  
  5772.             // let ez = 0;
  5773.             cProto.isAnimationPausedChanged = (
  5774.               doAnimator ? dProto.isAnimationPausedChangedForTimerFnModA : dProto.isAnimationPausedChangedForTimerFnModT
  5775.             );
  5776.  
  5777.           }
  5778.  
  5779.           if (doAnimator) {
  5780.  
  5781.             const s = fnIntegrity(cProto.computeContainerStyle);
  5782.             // 2.44.29 or 2.81.31
  5783.             if (s === '2.44.29' || s === '2.81.31') {
  5784.  
  5785.               //     var ofb = da([""])
  5786.               //         pfb = da("background:linear-gradient(90deg, {,{ {,{ {,{);".split("{"))
  5787.  
  5788.               // f.computeContainerStyle = function(a, b) {
  5789.               //     if (!a)
  5790.               //         return pi(ofb);
  5791.               //     var c = this.colorFromDecimal(a.startBackgroundColor);
  5792.               //     a = this.colorFromDecimal(a.endBackgroundColor);
  5793.               //     b = 100 * b + "%";
  5794.               //     return pi(pfb, c, c, b, a, b, a)
  5795.               // }
  5796.  
  5797.             } else {
  5798.               assertor(() => fnIntegrity(cProto.computeContainerStyle, '2.44.29'));
  5799.             }
  5800.  
  5801.             cProto.computeContainerStyle66 = cProto.computeContainerStyle;
  5802.  
  5803.             cProto.computeContainerStyle = dProto.computeContainerStyleForAnimatorEnabled;
  5804.  
  5805.           }
  5806.  
  5807.           if (doTimerFnModification === true) hasTimerModified = true;
  5808.  
  5809.           if (!!ATTEMPT_ANIMATED_TICKER_BACKGROUND) {
  5810.             console.log('ATTEMPT_ANIMATED_TICKER_BACKGROUND', tag, doAnimator ? 'OK' : 'NG');
  5811.           }
  5812.  
  5813.           if (!doAnimator && (rafHackState === 2 || rafHackState === 4)) {
  5814.             console.log('RAF_HACK_TICKERS', tag, doRAFHack ? "OK" : "NG");
  5815.           }
  5816.  
  5817.         }
  5818.  
  5819.         const selector = tags.join(', ');
  5820.         const elements = document.querySelectorAll(selector);
  5821.         if (elements.length >= 1) {
  5822.           for (const elm of elements) {
  5823.             if (insp(elm).isAttached === true) {
  5824.               fpTicker(elm);
  5825.             }
  5826.           }
  5827.         }
  5828.  
  5829.         console.log("[End]");
  5830.         console.groupEnd();
  5831.  
  5832.  
  5833.       }).catch(console.warn);
  5834.  
  5835.       customElements.whenDefined('yt-live-chat-ticker-renderer').then(() => {
  5836.  
  5837.         mightFirstCheckOnYtInit();
  5838.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-ticker-renderer hacks");
  5839.         console.log("[Begin]");
  5840.         (() => {
  5841.  
  5842.           /* pending!!
  5843.  
  5844.           handleLiveChatAction
  5845.  
  5846.           removeTickerItemById
  5847.  
  5848.           _itemsChanged
  5849.           itemsChanged
  5850.  
  5851.           handleMarkChatItemAsDeletedAction
  5852.           handleMarkChatItemsByAuthorAsDeletedAction
  5853.           handleRemoveChatItemByAuthorAction
  5854.  
  5855.  
  5856.           */
  5857.  
  5858.           const tag = "yt-live-chat-ticker-renderer"
  5859.           const dummy = document.createElement(tag);
  5860.  
  5861.           const cProto = getProto(dummy);
  5862.           if (!cProto || !cProto.attached) {
  5863.             console.warn(`proto.attached for ${tag} is unavailable.`);
  5864.             return;
  5865.           }
  5866.  
  5867.           const do_amend_ticker_handleLiveChatAction = AMEND_TICKER_handleLiveChatAction
  5868.             && typeof cProto.handleLiveChatAction === 'function' && !cProto.handleLiveChatAction45 && cProto.handleLiveChatAction.length === 1
  5869.             && typeof cProto.handleLiveChatActions === 'function' && !cProto.handleLiveChatActions45 && cProto.handleLiveChatActions.length === 1
  5870.             && typeof cProto.unshift === 'function' && cProto.unshift.length === 1
  5871.             && typeof cProto.handleMarkChatItemAsDeletedAction === 'function' && cProto.handleMarkChatItemAsDeletedAction.length === 1
  5872.             && typeof cProto.removeTickerItemById === 'function' && cProto.removeTickerItemById.length === 1
  5873.             && typeof cProto.handleMarkChatItemsByAuthorAsDeletedAction === 'function' && cProto.handleMarkChatItemsByAuthorAsDeletedAction.length === 1
  5874.             && typeof cProto.handleRemoveChatItemByAuthorAction === 'function' && cProto.handleRemoveChatItemByAuthorAction.length === 1
  5875.             ;
  5876.  
  5877.           console.log('do_amend_ticker_handleLiveChatAction', fnIntegrity(cProto.handleLiveChatAction), fnIntegrity(cProto.handleLiveChatActions))
  5878.  
  5879.  
  5880.           if (do_amend_ticker_handleLiveChatAction) {
  5881.  
  5882.  
  5883.             if (fnIntegrity(cProto.handleLiveChatActions) === '1.23.12') {
  5884.  
  5885.               console.log(`handleLiveChatActions`, 'modified');
  5886.  
  5887.               cProto.handleLiveChatActions45 = cProto.handleLiveChatActions;
  5888.  
  5889.               cProto.handleLiveChatActions = function (a) {
  5890.                 /**
  5891.                  *
  5892.                     f.handleLiveChatActions = function(a) {
  5893.                         a.length && (a.forEach(this.handleLiveChatAction, this),
  5894.                         this.updateHighlightedItem(),
  5895.                         this.shouldAnimateIn = !0)
  5896.                     }
  5897.                  *
  5898.                  */
  5899.                 const len = a.length;
  5900.                 if (len) {
  5901.                   const batchToken = String.fromCharCode(Date.now() % 26 + 97) + Math.floor(Math.random() * 19861 + 19861).toString(36);
  5902.  
  5903.                   if (FIX_BATCH_TICKER_ORDER && len >= 2) {
  5904.                     
  5905.                     // Primarily for the initial batch, this is due to replayBuffer._back.
  5906.                     const entries = [];
  5907.                     const entriesI = [];
  5908.                     for (let i = 0; i < len; i++) {
  5909.                       const item = ((a[i] || 0).addLiveChatTickerItemAction || 0).item || 0;
  5910.                       const timestampUsec = item ? parseInt(getTimestampUsec(item[firstObjectKey(item)]), 10) : 0;
  5911.                       if (timestampUsec > 0) {
  5912.                         entriesI.push(i);
  5913.                         binaryInsert(entries, { e: a[i], timestampUsec }, (a, b) => {
  5914.                           const diff = a.timestampUsec - b.timestampUsec;
  5915.                           return diff > 0.1 ? 1 : diff < -0.1 ? -1 : 0;
  5916.                         });
  5917.                       }
  5918.                     }
  5919.                     const mLen = entries.length;
  5920.                     if (mLen >= 2) {
  5921.                       for (let j = 0; j < mLen; j++) {
  5922.                         a[entriesI[j]] = entries[j].e;
  5923.                       }
  5924.                     }
  5925.                     entries.length = 0;
  5926.                     entriesI.length = 0;
  5927.                   }
  5928.                   for (const action of a) {
  5929.                     action.__batchId45__ = batchToken;
  5930.                     this.handleLiveChatAction(action);
  5931.                   }
  5932.                 }
  5933.               }
  5934.  
  5935.  
  5936.             }
  5937.  
  5938.  
  5939.             console.log(`handleLiveChatAction`, 'modified');
  5940.  
  5941.             const cacheChatActions = new LimitedSizeSet(16);
  5942.  
  5943.             cProto.handleLiveChatAction45 = cProto.handleLiveChatAction;
  5944.  
  5945.             cProto.handleLiveChatAction = function (a) {
  5946.  
  5947.               const key = firstObjectKey(a);
  5948.               if (!key) return;
  5949.  
  5950.               const val = a[key];
  5951.               let itemKey = '';
  5952.               let itemId = '';
  5953.               const valItem = val ? val.item : null;
  5954.               if (valItem) {
  5955.                 itemKey = firstObjectKey(valItem);
  5956.                 if (itemKey) {
  5957.                   const itemVal = valItem[itemKey];
  5958.                   itemId = itemVal ? itemVal.id : '';
  5959.                   if (itemId) {
  5960.  
  5961.                     const cacheKey = `${key}.${itemKey}::${itemId}`;
  5962.  
  5963.                     if (key === 'addChatItemAction' && itemId) return; // no need
  5964.  
  5965.                     if (cacheChatActions.has(cacheKey)) {
  5966.  
  5967.                       console.log('handleLiveChatAction Repeated Item', cacheKey);
  5968.                       return;
  5969.  
  5970.                     } else {
  5971.                       cacheChatActions.add(cacheKey);
  5972.  
  5973.                     }
  5974.  
  5975.  
  5976.                   }
  5977.                 }
  5978.               }
  5979.  
  5980.               return this.handleLiveChatAction45(a);
  5981.  
  5982.             };
  5983.  
  5984.             console.log("AMEND_TICKER_handleLiveChatAction - OK (v2)");
  5985.  
  5986.           } else if (0 && do_amend_ticker_handleLiveChatAction
  5987.             && '|1.63.48|1.64.48|'.includes(`|${fnIntegrity(cProto.handleLiveChatAction)}|`)
  5988.             && fnIntegrity(cProto.handleLiveChatActions) === '1.23.12'
  5989.           ) {
  5990.  
  5991.             cProto.handleLiveChatActions45 = cProto.handleLiveChatActions;
  5992.  
  5993.             cProto.handleLiveChatActions = function (a) {
  5994.               /**
  5995.                *
  5996.                   f.handleLiveChatActions = function(a) {
  5997.                       a.length && (a.forEach(this.handleLiveChatAction, this),
  5998.                       this.updateHighlightedItem(),
  5999.                       this.shouldAnimateIn = !0)
  6000.                   }
  6001.                *
  6002.                */
  6003.  
  6004.               if (a.length) {
  6005.                 const batchToken = String.fromCharCode(Date.now() % 26 + 97) + Math.floor(Math.random() * 19861 + 19861).toString(36);
  6006.                 const len = a.length;
  6007.                 if (FIX_BATCH_TICKER_ORDER && len >= 2) {
  6008.                   // Primarily for the initial batch, this is due to replayBuffer._back.
  6009.                   const entries = [];
  6010.                   const entriesI = [];
  6011.                   for (let i = 0; i < len; i++) {
  6012.                     const item = ((a[i] || 0).addLiveChatTickerItemAction || 0).item || 0;
  6013.                     if (item) {
  6014.                       const itemRendererKey = firstObjectKey(item);
  6015.                       const itemRenderer = item[itemRendererKey];
  6016.                       if (itemRenderer) {
  6017.                         let timestampUsec = getTimestampUsec(itemRenderer);
  6018.                         if (timestampUsec !== null) {
  6019.                           timestampUsec = parseInt(timestampUsec, 10);
  6020.                           if (timestampUsec > 0) {
  6021.                             entriesI.push(i);
  6022.                             entries.push({ e: a[i], timestampUsec })
  6023.                           }
  6024.                         }
  6025.                       }
  6026.                     }
  6027.                   }
  6028.                   const mLen = entries.length;
  6029.                   if (mLen >= 2) {
  6030.                     entries.sort((a, b) => {
  6031.                       const diff = a.timestampUsec - b.timestampUsec;
  6032.                       return diff > 0.1 ? 1 : diff < -0.1 ? -1 : 0;
  6033.                     });
  6034.                     for (let j = 0; j < mLen; j++) {
  6035.                       const i = entriesI[j];
  6036.                       a[i] = entries[j].e;
  6037.                     }
  6038.                   }
  6039.                   entries.length = 0;
  6040.                   entriesI.length = 0;
  6041.                 }
  6042.                 for (const action of a) {
  6043.                   action.__batchId45__ = batchToken;
  6044.                   this.handleLiveChatAction(action);
  6045.                 }
  6046.               }
  6047.             }
  6048.  
  6049.             cProto.handleLiveChatAction45 = cProto.handleLiveChatAction;
  6050.  
  6051.  
  6052.  
  6053.             cProto._nszlv_ = 0;
  6054.             cProto._stackedLCAs_ = null;
  6055.             cProto._lastAddItem_ = null;
  6056.             cProto._lastAddItemInStack_ = false;
  6057.             cProto.handleLiveChatAction = function (a) {
  6058.  
  6059.  
  6060.               /**
  6061.                *
  6062.                *
  6063.                 f.handleLiveChatAction = function(a) {
  6064.                     var b = C(a, xO)
  6065.                       , c = C(a, yO)
  6066.                       , d = C(a, o1a)
  6067.                       , e = C(a, p1a);
  6068.                     a = C(a, A1a);
  6069.                     b ? this.unshift("items", b.item) : c ? this.handleMarkChatItemAsDeletedAction(c) : d ? this.removeTickerItemById(d.targetItemId) : e ? this.handleMarkChatItemsByAuthorAsDeletedAction(e) : a && this.handleRemoveChatItemByAuthorAction(a)
  6070.                 }
  6071.                *
  6072.                */
  6073.  
  6074.               // return this.handleLiveChatAction45(a)
  6075.               const { addChatItemAction, addLiveChatTickerItemAction, markChatItemAsDeletedAction,
  6076.                 removeChatItemAction, markChatItemsByAuthorAsDeletedAction, removeChatItemByAuthorAction, __batchId45__ } = a
  6077.  
  6078.               if (addChatItemAction) return;
  6079.  
  6080.  
  6081.               const d = Date.now();
  6082.  
  6083.  
  6084.               // console.log(Object.keys(a));
  6085.  
  6086.               if (this._stackedLCAs_ === null) this._stackedLCAs_ = [];
  6087.               const stackArr = this._stackedLCAs_;
  6088.               let newStackEntry = null;
  6089.               if (addLiveChatTickerItemAction) {
  6090.                 let isDuplicated = false;
  6091.  
  6092.                 const newItem = addLiveChatTickerItemAction.item;
  6093.                 const tickerType = firstObjectKey(newItem);
  6094.                 if (!tickerType) return;
  6095.                 const tickerItem = newItem[tickerType];
  6096.                 const tickerId = tickerItem.id;
  6097.                 if (!tickerId) return;
  6098.  
  6099.                 if (this._lastAddItem_ && this._lastAddItem_.id === tickerId) {
  6100.                   let prevTickerItem = null;
  6101.                   if (this._lastAddItemInStack_) {
  6102.                     const entry = stackArr[stackArr.length - 1]; // only consider the last entry
  6103.                     if (entry && entry.action === 'addItem') {
  6104.                       prevTickerItem = entry.data; // only consider the first item;
  6105.                     }
  6106.                   } else {
  6107.                     prevTickerItem = this.items[0]; // only consider the first item;
  6108.                   }
  6109.                   if (prevTickerItem && prevTickerItem[tickerType]) {
  6110.                     if (prevTickerItem[tickerType].id === tickerId) {
  6111.                       isDuplicated = true;
  6112.                     }
  6113.                   }
  6114.                 }
  6115.                 if (!isDuplicated) {
  6116.                   this._lastAddItem_ = tickerItem;
  6117.                   this._lastAddItemInStack_ = true;
  6118.                   // console.log('newItem', newItem)
  6119.  
  6120.                   const item = newItem;
  6121.                   const key = firstObjectKey(item);
  6122.                   if (key) {
  6123.                     const itemRenderer = item[key] || 0;
  6124.                     if (itemRenderer.fullDurationSec > 0) {
  6125.                       itemRenderer.__actionAt__ = d;
  6126.                     }
  6127.                   }
  6128.  
  6129.  
  6130.                   newStackEntry = { action: 'addItem', data: newItem };
  6131.  
  6132.                 } else {
  6133.                   console.log('handleLiveChatAction Repeated Item', tickerItem.id, tickerItem); // happen in both live and playback. Reason Unknown.
  6134.                   return;
  6135.                 }
  6136.  
  6137.               } else {
  6138.                 markChatItemAsDeletedAction && (newStackEntry = { action: 'mcItemD', data: markChatItemAsDeletedAction });
  6139.                 removeChatItemAction && (newStackEntry = { action: 'removeItemById', data: removeChatItemAction.targetId });
  6140.                 markChatItemsByAuthorAsDeletedAction && (newStackEntry = { action: 'mcItemAD', data: markChatItemsByAuthorAsDeletedAction });
  6141.                 removeChatItemByAuthorAction && (newStackEntry = { action: 'removeItemA', data: removeChatItemByAuthorAction })
  6142.               }
  6143.  
  6144.  
  6145.               if (!newStackEntry) return;
  6146.               stackArr.push(newStackEntry);
  6147.  
  6148.  
  6149.               this._nszlv_++;
  6150.               if (this._nszlv_ > 1e9) this._nszlv_ = 9;
  6151.               const tid = this._nszlv_;
  6152.  
  6153.               newStackEntry.__batchId45__ = __batchId45__ || '';
  6154.               newStackEntry.dateTime = Date.now();
  6155.  
  6156.  
  6157.               foregroundPromiseFn().then(() => {
  6158.  
  6159.                 if (tid !== this._nszlv_) return;
  6160.                 const dateNow = Date.now(); // time difference to shift animation start time shall be considered. (pending)
  6161.                 const stackArr = this._stackedLCAs_.slice(0);
  6162.                 this._stackedLCAs_.length = 0;
  6163.                 this._lastAddItemInStack_ = false;
  6164.                 let lastDateTime = 0;
  6165.                 let prevBatchId = '';
  6166.                 const addItems = [];
  6167.                 // const previousShouldAnimateIn = this.shouldAnimateIn;
  6168.  
  6169.                 const addItemsFx = () => {
  6170.  
  6171.                   if (addItems.length >= 1) {
  6172.                     const eArr = addItems.slice(0);
  6173.                     addItems.length = 0;
  6174.                     if (ADJUST_TICKER_DURATION_ALIGN_RENDER_TIME) {
  6175.  
  6176.                       const arr = []; // size of arr <= size of eArr
  6177.                       const d = Date.now();
  6178.                       for (const item of eArr) {
  6179.                         const key = firstObjectKey(item);
  6180.                         if (key) {
  6181.  
  6182.  
  6183.                           const itemRenderer = item[key] || 0;
  6184.                           const { durationSec, fullDurationSec, __actionAt__ } = itemRenderer;
  6185.                           if (__actionAt__ > 0 && durationSec > 0 && fullDurationSec > 0) {
  6186.  
  6187.  
  6188.                             const offset = d - __actionAt__;
  6189.                             if (offset > 0 && typeof durationSec === 'number' && typeof fullDurationSec === 'number' && fullDurationSec >= durationSec) {
  6190.                               const adjustedDurationSec = durationSec - Math.floor(offset / 1000);
  6191.                               if (adjustedDurationSec < durationSec) { // prevent NaN
  6192.                                 // console.log('adjustedDurationSec', adjustedDurationSec);
  6193.                                 if (adjustedDurationSec > 0) {
  6194.                                   // console.log('offset Sec', Math.floor(offset / 1000));
  6195.                                   itemRenderer.durationSec = adjustedDurationSec;
  6196.                                 } else {
  6197.                                   // if adjustedDurationSec equal 0 or invalid
  6198.                                   continue; // skip adding
  6199.                                 }
  6200.                               }
  6201.  
  6202.                             }
  6203.  
  6204.                           }
  6205.  
  6206.                           if (fullDurationSec > 0 && durationSec < 1) continue; // fallback check
  6207.  
  6208.  
  6209.  
  6210.                         }
  6211.                         arr.push(item)
  6212.                         // arr.unshift(item);
  6213.                       }
  6214.  
  6215.  
  6216.                       // console.log(arr.slice(0))
  6217.                       this.unshift("items", ...arr);
  6218.                     } else {
  6219.                       this.unshift("items", ...eArr);
  6220.                     }
  6221.                   }
  6222.                 }
  6223.  
  6224.                 for (const entry of stackArr) {
  6225.  
  6226.                   const { action, data, dateTime, __batchId45__ } = entry;
  6227.  
  6228.                   const finishLastAction = (
  6229.                     (prevBatchId !== __batchId45__ && prevBatchId)
  6230.                     || (dateNow - lastDateTime >= 1000 && dateNow - dateTime < 1000)
  6231.                   );
  6232.  
  6233.                   const addPrevItems = addItems.length >= 1 && (finishLastAction || action !== 'addItem');
  6234.                   lastDateTime = dateTime;
  6235.                   prevBatchId = __batchId45__;
  6236.  
  6237.                   // if (dateNow - dateTime >= 1000 && this.shouldAnimateIn) this.shouldAnimateIn = false;
  6238.  
  6239.  
  6240.                   if (addPrevItems) {
  6241.                     addItemsFx();
  6242.                   }
  6243.                   // if (finishLastAction) {
  6244.                   //   this.updateHighlightedItem();
  6245.                   //   if (!this.shouldAnimateIn) this.shouldAnimateIn = true;
  6246.                   // }
  6247.  
  6248.  
  6249.                   if (action === 'addItem') addItems.unshift(data);
  6250.                   else if (action === 'mcItemD') this.handleMarkChatItemAsDeletedAction(data);
  6251.                   else if (action === 'removeItemById') this.removeTickerItemById(data);
  6252.                   else if (action === 'mcItemAD') this.handleMarkChatItemsByAuthorAsDeletedAction(data);
  6253.                   else if (action === 'removeItemA') this.handleRemoveChatItemByAuthorAction(data);
  6254.  
  6255.                 }
  6256.  
  6257.  
  6258.                 // if (previousShouldAnimateIn && !this.shouldAnimateIn) this.shouldAnimateIn = true;
  6259.  
  6260.                 addItemsFx();
  6261.  
  6262.                 // if (prevBatchId || dateNow - lastDateTime >= 1000) {
  6263.                 //   this.updateHighlightedItem();
  6264.                 //   if (!this.shouldAnimateIn) this.shouldAnimateIn = true;
  6265.                 // }
  6266.  
  6267.               })
  6268.  
  6269.             }
  6270.  
  6271.             console.log("AMEND_TICKER_handleLiveChatAction - OK (v1)");
  6272.           } else {
  6273.             console.log("AMEND_TICKER_handleLiveChatAction - NG");
  6274.           }
  6275.  
  6276.           if (RAF_FIX_keepScrollClamped) {
  6277.  
  6278.             // to be improved
  6279.  
  6280.             if (typeof cProto.keepScrollClamped === 'function' && !cProto.keepScrollClamped72 && fnIntegrity(cProto.keepScrollClamped) === '0.17.10') {
  6281.  
  6282.               cProto.keepScrollClamped72 = cProto.keepScrollClamped;
  6283.               cProto.keepScrollClamped = function () {
  6284.                 this._bound_keepScrollClamped = this._bound_keepScrollClamped || this.keepScrollClamped.bind(this);
  6285.                 this.scrollClampRaf = requestAnimationFrame(this._bound_keepScrollClamped);
  6286.                 this.maybeClampScroll()
  6287.               }
  6288.  
  6289.               console.log('RAF_FIX: keepScrollClamped', tag, "OK")
  6290.             } else {
  6291.  
  6292.               assertor(() => fnIntegrity(cProto.keepScrollClamped, '0.17.10'));
  6293.               console.log('RAF_FIX: keepScrollClamped', tag, "NG")
  6294.             }
  6295.  
  6296.           }
  6297.  
  6298.  
  6299.           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) {
  6300.             // to be replaced by animator
  6301.  
  6302.             cProto.startScrolling = function (a) {
  6303.               this.scrollStopHandle && this.cancelAsync(this.scrollStopHandle);
  6304.               this.asyncHandle && cancelAnimationFrame(this.asyncHandle);
  6305.               this.lastFrameTimestamp = this.scrollStartTime = performance.now();
  6306.               this.scrollRatePixelsPerSecond = a;
  6307.               this._bound_scrollIncrementally = this._bound_scrollIncrementally || this.scrollIncrementally.bind(this);
  6308.               this.asyncHandle = requestAnimationFrame(this._bound_scrollIncrementally)
  6309.             };
  6310.  
  6311.             // related functions: startScrollBack, startScrollingLeft, startScrollingRight, etc.
  6312.  
  6313.             // 2024.03.26
  6314.             // https://www.youtube.com/s/desktop/436f2749/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  6315.             /*
  6316.  
  6317.                 f.scrollIncrementally = function(a) {
  6318.                     var b = a - (this.lastFrameTimestamp || 0);
  6319.                     Q(this.hostElement).querySelector(this.tickerBarQuery).scrollLeft += b / 1E3 * (this.scrollRatePixelsPerSecond || 0);
  6320.                     this.maybeClampScroll();
  6321.                     this.updateArrows();
  6322.                     this.lastFrameTimestamp = a;
  6323.                     0 < Q(this.hostElement).querySelector(this.tickerBarQuery).scrollLeft || this.scrollRatePixelsPerSecond && 0 < this.scrollRatePixelsPerSecond ? this.asyncHandle = window.requestAnimationFrame(this.scrollIncrementally.bind(this)) : this.stopScrolling()
  6324.                 }
  6325.             */
  6326.  
  6327.             cProto.__getTickerBarQuery__ = function () {
  6328.               const tickerBarQuery = this.tickerBarQuery === '#items' ? this.$.items : this.hostElement.querySelector(this.tickerBarQuery);
  6329.               return tickerBarQuery;
  6330.             }
  6331.  
  6332.             cProto.scrollIncrementally = (RAF_FIX_scrollIncrementally === 2) ? function (a) {
  6333.               const b = a - (this.lastFrameTimestamp || 0);
  6334.               const rate = this.scrollRatePixelsPerSecond
  6335.               const q = b / 1E3 * (rate || 0);
  6336.  
  6337.               const tickerBarQuery = this.__getTickerBarQuery__();
  6338.               const sl = tickerBarQuery.scrollLeft;
  6339.               // console.log(rate, sl, q)
  6340.               if (this.lastFrameTimestamp == this.scrollStartTime) {
  6341.  
  6342.               } else if (q > -1e-5 && q < 1e-5) {
  6343.  
  6344.               } else {
  6345.                 let cond1 = sl > 0 && rate > 0 && q > 0;
  6346.                 let cond2 = sl > 0 && rate < 0 && q < 0;
  6347.                 let cond3 = sl < 1e-5 && sl > -1e-5 && rate > 0 && q > 0;
  6348.                 if (cond1 || cond2 || cond3) {
  6349.                   tickerBarQuery.scrollLeft += q;
  6350.                   this.maybeClampScroll();
  6351.                   this.updateArrows();
  6352.                 }
  6353.               }
  6354.  
  6355.               this.lastFrameTimestamp = a;
  6356.               this._bound_scrollIncrementally = this._bound_scrollIncrementally || this.scrollIncrementally.bind(this);
  6357.               0 < tickerBarQuery.scrollLeft || rate && 0 < rate ? this.asyncHandle = requestAnimationFrame(this._bound_scrollIncrementally) : this.stopScrolling()
  6358.             } : function (a) {
  6359.               const b = a - (this.lastFrameTimestamp || 0);
  6360.               const tickerBarQuery = this.__getTickerBarQuery__();
  6361.               tickerBarQuery.scrollLeft += b / 1E3 * (this.scrollRatePixelsPerSecond || 0);
  6362.               this.maybeClampScroll();
  6363.               this.updateArrows();
  6364.               this.lastFrameTimestamp = a;
  6365.               this._bound_scrollIncrementally = this._bound_scrollIncrementally || this.scrollIncrementally.bind(this);
  6366.               0 < tickerBarQuery.scrollLeft || this.scrollRatePixelsPerSecond && 0 < this.scrollRatePixelsPerSecond ? this.asyncHandle = requestAnimationFrame(this._bound_scrollIncrementally) : this.stopScrolling()
  6367.             };
  6368.  
  6369.             console.log(`RAF_FIX: scrollIncrementally${RAF_FIX_scrollIncrementally}`, tag, "OK")
  6370.           } else {
  6371.             assertor(() => fnIntegrity(cProto.startScrolling, '1.43.31'));
  6372.             assertor(() => fnIntegrity(cProto.scrollIncrementally, '1.82.43'));
  6373.             console.log('cProto.startScrolling', cProto.startScrolling);
  6374.             console.log('cProto.scrollIncrementally', cProto.scrollIncrementally);
  6375.             console.log('RAF_FIX: scrollIncrementally', tag, "NG")
  6376.           }
  6377.  
  6378.  
  6379.           if (CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED && typeof cProto.attached === 'function' && !cProto.attached37 && typeof cProto.detached === 'function' && !cProto.detached37) {
  6380.  
  6381.             cProto.attached37 = cProto.attached;
  6382.             cProto.detached37 = cProto.detached;
  6383.  
  6384.             let naohzId = 0;
  6385.             cProto.__naohzId__ = 0;
  6386.             cProto.attached = function () {
  6387.               Promise.resolve().then(() => {
  6388.  
  6389.                 const hostElement = this.hostElement || this;
  6390.                 if (!(hostElement instanceof HTMLElement)) return;
  6391.                 if (!HTMLElement.prototype.matches.call(hostElement, '.yt-live-chat-renderer')) return;
  6392.                 const ironPage = HTMLElement.prototype.closest.call(hostElement, 'iron-pages.yt-live-chat-renderer');
  6393.                 // or #chat-messages
  6394.                 if (!ironPage) return;
  6395.  
  6396.                 if (this.__naohzId__) removeEventListener.call(ironPage, 'click', this.messageBoxClickHandlerForFade, { capture: false, passive: true });
  6397.                 if (naohzId > 1e9) naohzId = naohzId % 1e4;
  6398.                 this.__naohzId__ = ++naohzId;
  6399.                 ironPage.setAttribute('naohz', `${+this.__naohzId__}`);
  6400.  
  6401.                 addEventListener.call(ironPage, 'click', this.messageBoxClickHandlerForFade, { capture: false, passive: true });
  6402.  
  6403.               });
  6404.               return this.attached37.apply(this, arguments);
  6405.             };
  6406.             cProto.detached = function () {
  6407.               Promise.resolve().then(() => {
  6408.  
  6409.                 const ironPage = document.querySelector(`iron-pages[naohz="${+this.__naohzId__}"]`);
  6410.                 if (!ironPage) return;
  6411.  
  6412.                 removeEventListener.call(ironPage, 'click', this.messageBoxClickHandlerForFade, { capture: false, passive: true });
  6413.  
  6414.               });
  6415.               return this.detached37.apply(this, arguments);
  6416.             };
  6417.  
  6418.             const clickFade = (u) => {
  6419.               u.click();
  6420.             };
  6421.             cProto.messageBoxClickHandlerForFade = async (evt) => {
  6422.  
  6423.               const target = (evt || 0).target || 0;
  6424.               if (!target) return;
  6425.  
  6426.               for (let p = target; p instanceof HTMLElement; p = nodeParent(p)) {
  6427.                 const is = p.is;
  6428.                 if (typeof is === 'string' && is) {
  6429.  
  6430.                   if (is === 'yt-live-chat-pinned-message-renderer') {
  6431.                     return;
  6432.                   }
  6433.                   if (is === 'iron-pages' || is === 'yt-live-chat-renderer' || is === 'yt-live-chat-app') {
  6434.                     const fade = HTMLElement.prototype.querySelector.call(p, 'yt-live-chat-pinned-message-renderer:not([hidden]) #fade');
  6435.                     if (fade) {
  6436.                       Promise.resolve(fade).then(clickFade);
  6437.                       evt && evt.stopPropagation();
  6438.                     }
  6439.                     return;
  6440.                   }
  6441.                   if (is !== 'yt-live-chat-ticker-renderer') {
  6442.                     if (is.startsWith('yt-live-chat-ticker-')) return;
  6443.                     if (!is.endsWith('-renderer')) return;
  6444.                   }
  6445.  
  6446.                 } else {
  6447.                   if ((p.nodeName || '').includes('BUTTON')) return;
  6448.                 }
  6449.  
  6450.               }
  6451.             };
  6452.  
  6453.             console.log("CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED - OK")
  6454.  
  6455.           } else {
  6456.             console.log("CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED - NG")
  6457.           }
  6458.  
  6459.  
  6460.         })();
  6461.  
  6462.         console.log("[End]");
  6463.  
  6464.         console.groupEnd();
  6465.  
  6466.       }).catch(console.warn);
  6467.  
  6468.  
  6469.  
  6470.       if (ENABLE_RAF_HACK_INPUT_RENDERER || DELAY_FOCUSEDCHANGED) {
  6471.  
  6472.         customElements.whenDefined("yt-live-chat-message-input-renderer").then(() => {
  6473.  
  6474.           mightFirstCheckOnYtInit();
  6475.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-message-input-renderer hacks");
  6476.           console.log("[Begin]");
  6477.           (() => {
  6478.  
  6479.  
  6480.  
  6481.             const tag = "yt-live-chat-message-input-renderer"
  6482.             const dummy = document.createElement(tag);
  6483.  
  6484.             const cProto = getProto(dummy);
  6485.             if (!cProto || !cProto.attached) {
  6486.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6487.               return;
  6488.             }
  6489.  
  6490.  
  6491.             if (ENABLE_RAF_HACK_INPUT_RENDERER && rafHub !== null) {
  6492.  
  6493.               let doHack = false;
  6494.               if (typeof cProto.handleTimeout === 'function' && typeof cProto.updateTimeout === 'function') {
  6495.  
  6496.                 // not cancellable
  6497.  
  6498.  
  6499.                 doHack = fnIntegrity(cProto.handleTimeout, '1.27.16') && fnIntegrity(cProto.updateTimeout, '1.50.33');
  6500.  
  6501.               }
  6502.  
  6503.               if (doHack) {
  6504.  
  6505.                 cProto.handleTimeout = function (a) {
  6506.                   console.log('cProto.handleTimeout', tag)
  6507.                   if (!this.boundUpdateTimeout38_) this.boundUpdateTimeout38_ = this.updateTimeout.bind(this);
  6508.                   this.timeoutDurationMs = this.timeoutMs = a;
  6509.                   this.countdownRatio = 1;
  6510.                   0 === this.lastTimeoutTimeMs && rafHub.request(this.boundUpdateTimeout38_)
  6511.                 };
  6512.                 cProto.updateTimeout = function (a) {
  6513.                   console.log('cProto.updateTimeout', tag)
  6514.                   if (!this.boundUpdateTimeout38_) this.boundUpdateTimeout38_ = this.updateTimeout.bind(this);
  6515.                   this.lastTimeoutTimeMs && (this.timeoutMs = Math.max(0, this.timeoutMs - (a - this.lastTimeoutTimeMs)),
  6516.                     this.countdownRatio = this.timeoutMs / this.timeoutDurationMs);
  6517.                   this.isAttached && this.timeoutMs ? (this.lastTimeoutTimeMs = a,
  6518.                     rafHub.request(this.boundUpdateTimeout38_)) : this.lastTimeoutTimeMs = 0
  6519.                 };
  6520.  
  6521.                 console.log('RAF_HACK_INPUT_RENDERER', tag, "OK")
  6522.               } else {
  6523.  
  6524.                 console.log('typeof handleTimeout', typeof cProto.handleTimeout)
  6525.                 console.log('typeof updateTimeout', typeof cProto.updateTimeout)
  6526.  
  6527.                 console.log('RAF_HACK_INPUT_RENDERER', tag, "NG")
  6528.               }
  6529.  
  6530.  
  6531.             }
  6532.  
  6533.             if (DELAY_FOCUSEDCHANGED && typeof cProto.onFocusedChanged === 'function' && cProto.onFocusedChanged.length === 1 && !cProto.onFocusedChanged372) {
  6534.               cProto.onFocusedChanged372 = cProto.onFocusedChanged;
  6535.               cProto.onFocusedChanged = function (a) {
  6536.                 Promise.resolve().then(() => {
  6537.                   if (this.isAttached === true) this.onFocusedChanged372(a);
  6538.                 }).catch(console.warn);
  6539.               }
  6540.             }
  6541.  
  6542.           })();
  6543.  
  6544.           console.log("[End]");
  6545.  
  6546.           console.groupEnd();
  6547.  
  6548.  
  6549.         })
  6550.  
  6551.       }
  6552.  
  6553.  
  6554.       if (ENABLE_RAF_HACK_EMOJI_PICKER && rafHub !== null) {
  6555.  
  6556.  
  6557.         customElements.whenDefined("yt-emoji-picker-renderer").then(() => {
  6558.  
  6559.           mightFirstCheckOnYtInit();
  6560.           groupCollapsed("YouTube Super Fast Chat", " | yt-emoji-picker-renderer hacks");
  6561.           console.log("[Begin]");
  6562.           (() => {
  6563.  
  6564.             const tag = "yt-emoji-picker-renderer"
  6565.             const dummy = document.createElement(tag);
  6566.  
  6567.             const cProto = getProto(dummy);
  6568.             if (!cProto || !cProto.attached) {
  6569.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6570.               return;
  6571.             }
  6572.  
  6573.             let doHack = false;
  6574.             if (typeof cProto.animateScroll_ === 'function') {
  6575.  
  6576.               // not cancellable
  6577.               console.log('animateScroll_', typeof cProto.animateScroll_)
  6578.  
  6579.               doHack = fnIntegrity(cProto.animateScroll_, '1.102.49')
  6580.  
  6581.             }
  6582.  
  6583.             if (doHack) {
  6584.  
  6585.               const querySelector = HTMLElement.prototype.querySelector;
  6586.               const U = (element) => ({
  6587.                 querySelector: (selector) => querySelector.call(element, selector)
  6588.               });
  6589.  
  6590.               cProto.animateScroll_ = function (a) {
  6591.                 // console.log('cProto.animateScroll_', tag) // yt-emoji-picker-renderer
  6592.                 if (!this.boundAnimateScroll39_) this.boundAnimateScroll39_ = this.animateScroll_.bind(this);
  6593.                 this.lastAnimationTime_ || (this.lastAnimationTime_ = a);
  6594.                 a -= this.lastAnimationTime_;
  6595.                 200 > a ? (U(this.hostElement).querySelector("#categories").scrollTop = this.animationStart_ + (this.animationEnd_ - this.animationStart_) * a / 200,
  6596.                   rafHub.request(this.boundAnimateScroll39_)) : (null != this.animationEnd_ && (U(this.hostElement).querySelector("#categories").scrollTop = this.animationEnd_),
  6597.                     this.animationEnd_ = this.animationStart_ = null,
  6598.                     this.lastAnimationTime_ = 0);
  6599.                 this.updateButtons_()
  6600.               }
  6601.  
  6602.               console.log('ENABLE_RAF_HACK_EMOJI_PICKER', tag, "OK")
  6603.             } else {
  6604.  
  6605.               console.log('ENABLE_RAF_HACK_EMOJI_PICKER', tag, "NG")
  6606.             }
  6607.  
  6608.           })();
  6609.  
  6610.           console.log("[End]");
  6611.  
  6612.           console.groupEnd();
  6613.         });
  6614.       }
  6615.  
  6616.       if (ENABLE_RAF_HACK_DOCKED_MESSAGE && rafHub !== null) {
  6617.  
  6618.  
  6619.         customElements.whenDefined("yt-live-chat-docked-message").then(() => {
  6620.  
  6621.           mightFirstCheckOnYtInit();
  6622.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-docked-message hacks");
  6623.           console.log("[Begin]");
  6624.           (() => {
  6625.  
  6626.             const tag = "yt-live-chat-docked-message"
  6627.             const dummy = document.createElement(tag);
  6628.  
  6629.             const cProto = getProto(dummy);
  6630.             if (!cProto || !cProto.attached) {
  6631.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6632.               return;
  6633.             }
  6634.  
  6635.             let doHack = false;
  6636.             if (typeof cProto.detached === 'function' && typeof cProto.checkIntersections === 'function' && typeof cProto.onDockableMessagesChanged === 'function' && typeof cProto.boundCheckIntersections === 'undefined') {
  6637.  
  6638.               // cancelable - this.intersectRAF <detached>
  6639.               // yt-live-chat-docked-message
  6640.               // boundCheckIntersections <-> checkIntersections
  6641.               // onDockableMessagesChanged
  6642.               //  this.intersectRAF = window.requestAnimationFrame(this.boundCheckIntersections);
  6643.  
  6644.               console.log('detached', typeof cProto.detached)
  6645.               console.log('checkIntersections', typeof cProto.checkIntersections)
  6646.               console.log('onDockableMessagesChanged', typeof cProto.onDockableMessagesChanged)
  6647.  
  6648.               doHack = fnIntegrity(cProto.detached, '0.32.22') && fnIntegrity(cProto.checkIntersections, '0.128.85') && fnIntegrity(cProto.onDockableMessagesChanged, '0.20.11')
  6649.  
  6650.             }
  6651.  
  6652.             if (doHack) {
  6653.  
  6654.               cProto.checkIntersections = function () {
  6655.                 // console.log('cProto.checkIntersections', tag)
  6656.                 if (this.dockableMessages.length) {
  6657.                   this.intersectRAF = rafHub.request(this.boundCheckIntersections);
  6658.                   let a = this.dockableMessages[0]
  6659.                     , b = this.hostElement.getBoundingClientRect();
  6660.                   a = a.getBoundingClientRect();
  6661.                   let c = a.top - b.top
  6662.                     , d = 8 >= c;
  6663.                   c = 8 >= c - this.hostElement.clientHeight;
  6664.                   if (d) {
  6665.                     let e;
  6666.                     for (; d;) {
  6667.                       e = this.dockableMessages.shift();
  6668.                       d = this.dockableMessages[0];
  6669.                       if (!d)
  6670.                         break;
  6671.                       d = d.getBoundingClientRect();
  6672.                       c = d.top - b.top;
  6673.                       let f = 8 >= c;
  6674.                       if (8 >= c - a.height)
  6675.                         if (f)
  6676.                           a = d;
  6677.                         else
  6678.                           return;
  6679.                       d = f
  6680.                     }
  6681.                     this.dock(e)
  6682.                   } else
  6683.                     c && this.dockedItem && this.clear()
  6684.                 } else
  6685.                   this.intersectRAF = 0
  6686.               }
  6687.  
  6688.               cProto.onDockableMessagesChanged = function () {
  6689.                 // console.log('cProto.onDockableMessagesChanged', tag) // yt-live-chat-docked-message
  6690.                 this.dockableMessages.length && !this.intersectRAF && (this.intersectRAF = rafHub.request(this.boundCheckIntersections))
  6691.               }
  6692.  
  6693.               cProto.detached = function () {
  6694.                 this.intersectRAF && rafHub.cancel(this.intersectRAF)
  6695.               }
  6696.  
  6697.               console.log('ENABLE_RAF_HACK_DOCKED_MESSAGE', tag, "OK")
  6698.             } else {
  6699.  
  6700.               console.log('ENABLE_RAF_HACK_DOCKED_MESSAGE', tag, "NG")
  6701.             }
  6702.  
  6703.           })();
  6704.  
  6705.           console.log("[End]");
  6706.  
  6707.           console.groupEnd();
  6708.  
  6709.         }).catch(console.warn);
  6710.  
  6711.       }
  6712.  
  6713.       if (FIX_SETSRC_AND_THUMBNAILCHANGE_) {
  6714.  
  6715.  
  6716.         customElements.whenDefined("yt-img-shadow").then(() => {
  6717.  
  6718.           mightFirstCheckOnYtInit();
  6719.           groupCollapsed("YouTube Super Fast Chat", " | yt-img-shadow hacks");
  6720.           console.log("[Begin]");
  6721.           (() => {
  6722.  
  6723.             const tag = "yt-img-shadow"
  6724.             const dummy = document.createElement(tag);
  6725.  
  6726.             const cProto = getProto(dummy);
  6727.             if (!cProto || !cProto.attached) {
  6728.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6729.               return;
  6730.             }
  6731.  
  6732.             if (typeof cProto.thumbnailChanged_ === 'function' && !cProto.thumbnailChanged66_) {
  6733.  
  6734.               cProto.thumbnailChanged66_ = cProto.thumbnailChanged_;
  6735.               cProto.thumbnailChanged_ = function (a) {
  6736.  
  6737.                 if (this.oldThumbnail_ && this.thumbnail && this.oldThumbnail_.thumbnails === this.thumbnail.thumbnails) return;
  6738.                 if (!this.oldThumbnail_ && !this.thumbnail) return;
  6739.  
  6740.                 return this.thumbnailChanged66_.apply(this, arguments)
  6741.  
  6742.               }
  6743.               console.log("cProto.thumbnailChanged_ - OK");
  6744.  
  6745.             } else {
  6746.               console.log("cProto.thumbnailChanged_ - NG");
  6747.  
  6748.             }
  6749.             if (typeof cProto.setSrc_ === 'function' && !cProto.setSrc66_) {
  6750.  
  6751.               cProto.setSrc66_ = cProto.setSrc_;
  6752.               cProto.setSrc_ = function (a) {
  6753.                 if ((((this || 0).$ || 0).img || 0).src === a) return;
  6754.                 return this.setSrc66_.apply(this, arguments)
  6755.               }
  6756.  
  6757.               console.log("cProto.setSrc_ - OK");
  6758.             } else {
  6759.  
  6760.               console.log("cProto.setSrc_ - NG");
  6761.             }
  6762.  
  6763.           })();
  6764.  
  6765.           console.log("[End]");
  6766.  
  6767.           console.groupEnd();
  6768.  
  6769.         }).catch(console.warn);
  6770.  
  6771.       }
  6772.  
  6773.       if (FIX_THUMBNAIL_DATACHANGED) {
  6774.  
  6775.  
  6776.  
  6777.         customElements.whenDefined("yt-live-chat-author-badge-renderer").then(() => {
  6778.  
  6779.           mightFirstCheckOnYtInit();
  6780.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-author-badge-renderer hacks");
  6781.           console.log("[Begin]");
  6782.           (() => {
  6783.  
  6784.             const tag = "yt-live-chat-author-badge-renderer"
  6785.             const dummy = document.createElement(tag);
  6786.  
  6787.             const cProto = getProto(dummy);
  6788.             if (!cProto || !cProto.attached) {
  6789.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6790.               return;
  6791.             }
  6792.  
  6793.  
  6794.             if (typeof cProto.dataChanged === 'function' && !cProto.dataChanged86 && '|1.160.97|1.159.97|'.includes(`|${fnIntegrity(cProto.dataChanged)}|`)) {
  6795.  
  6796.  
  6797.  
  6798.               cProto.dataChanged86 = cProto.dataChanged;
  6799.               cProto.dataChanged = function (a) {
  6800.  
  6801.                 /*
  6802.  
  6803.                   for (var b = xC(Z(this.hostElement).querySelector("#image")); b.firstChild; )
  6804.                       b.removeChild(b.firstChild);
  6805.                   if (a)
  6806.                       if (a.icon) {
  6807.                           var c = document.createElement("yt-icon");
  6808.                           "MODERATOR" === a.icon.iconType && this.enableNewModeratorBadge ? (c.icon = "yt-sys-icons:shield-filled",
  6809.                           c.defaultToFilled = !0) : c.icon = "live-chat-badges:" + a.icon.iconType.toLowerCase();
  6810.                           b.appendChild(c)
  6811.                       } else if (a.customThumbnail) {
  6812.                           c = document.createElement("img");
  6813.                           var d;
  6814.                           (d = (d = KC(a.customThumbnail.thumbnails, 16)) ? lc(oc(d)) : null) ? (c.src = d,
  6815.                           b.appendChild(c),
  6816.                           c.setAttribute("alt", this.hostElement.ariaLabel || "")) : lq(new tm("Could not compute URL for thumbnail",a.customThumbnail))
  6817.                       }
  6818.  
  6819.                 */
  6820.  
  6821.                 const image = ((this || 0).$ || 0).image
  6822.                 if (image && a && image.firstElementChild) {
  6823.                   let exisiting = image.firstElementChild;
  6824.                   if (exisiting === image.lastElementChild) {
  6825.  
  6826.  
  6827.                     if (a.icon && exisiting.nodeName.toUpperCase() === 'YT-ICON') {
  6828.  
  6829.                       let c = exisiting;
  6830.                       if ("MODERATOR" === a.icon.iconType && this.enableNewModeratorBadge) {
  6831.                         if (c.icon !== "yt-sys-icons:shield-filled") c.icon = "yt-sys-icons:shield-filled";
  6832.                         if (c.defaultToFilled !== true) c.defaultToFilled = true;
  6833.                       } else {
  6834.                         let p = "live-chat-badges:" + a.icon.iconType.toLowerCase();;
  6835.                         if (c.icon !== p) c.icon = p;
  6836.                         if (c.defaultToFilled !== false) c.defaultToFilled = false;
  6837.                       }
  6838.                       return;
  6839.  
  6840.  
  6841.                     } else if (a.customThumbnail && exisiting.nodeName.toUpperCase() == 'IMG') {
  6842.  
  6843.                       let c = exisiting;
  6844.                       if (a.customThumbnail.thumbnails.map(e => e.url).includes(c.src)) {
  6845.  
  6846.                         c.setAttribute("alt", this.hostElement.ariaLabel || "");
  6847.                         return;
  6848.                       }
  6849.                       /*
  6850.  
  6851.                       var d;
  6852.                       (d = (d = KC(a.customThumbnail.thumbnails, 16)) ? lc(oc(d)) : null) ? (c.src = d,
  6853.  
  6854.  
  6855.                         c.setAttribute("alt", this.hostElement.ariaLabel || "")) : lq(new tm("Could not compute URL for thumbnail", a.customThumbnail))
  6856.                         */
  6857.                     }
  6858.  
  6859.  
  6860.                   }
  6861.                 }
  6862.                 return this.dataChanged86.apply(this, arguments)
  6863.  
  6864.               }
  6865.               console.log("cProto.dataChanged - OK");
  6866.  
  6867.             } else {
  6868.               assertor(() => fnIntegrity(cProto.dataChanged, '1.160.97'));
  6869.               console.log("cProto.dataChanged - NG");
  6870.  
  6871.             }
  6872.  
  6873.           })();
  6874.  
  6875.           console.log("[End]");
  6876.  
  6877.           console.groupEnd();
  6878.  
  6879.         }).catch(console.warn);
  6880.  
  6881.  
  6882.       }
  6883.  
  6884.  
  6885.       if (FIX_TOOLTIP_DISPLAY) {
  6886.  
  6887.  
  6888.         customElements.whenDefined("tp-yt-paper-tooltip").then(() => {
  6889.  
  6890.           mightFirstCheckOnYtInit();
  6891.           groupCollapsed("YouTube Super Fast Chat", " | tp-yt-paper-tooltip hacks");
  6892.           console.log("[Begin]");
  6893.           (() => {
  6894.  
  6895.             const tag = "tp-yt-paper-tooltip"
  6896.             const dummy = document.createElement(tag);
  6897.  
  6898.             const cProto = getProto(dummy);
  6899.             if (!cProto || !cProto.attached) {
  6900.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6901.               return;
  6902.             }
  6903.  
  6904.             if (typeof cProto.attached === 'function' && typeof cProto.detached === 'function' && cProto._readyClients && cProto._attachDom && cProto.ready && !cProto._readyClients43) {
  6905.  
  6906.               cProto._readyClients43 = cProto._readyClients;
  6907.               cProto._readyClients = function () {
  6908.                 let r = cProto._readyClients43.apply(this, arguments);
  6909.                 if (this.$ && this.$$ && this.$.tooltip) this.root = null; // fix this.root = null != (b = a.root) ? b : this.host
  6910.                 return r;
  6911.               }
  6912.  
  6913.               console.log("_readyClients - OK");
  6914.  
  6915.             } else {
  6916.               console.log("_readyClients - NG");
  6917.  
  6918.             }
  6919.  
  6920.             if (typeof cProto.show === 'function' && !cProto.show17) {
  6921.               cProto.show17 = cProto.show;
  6922.               cProto.show = function () {
  6923.  
  6924.                 let r = this.show17.apply(this, arguments);
  6925.                 this._showing === true && Promise.resolve().then(() => {
  6926.                   const tooltip = (this.$ || 0).tooltip;
  6927.  
  6928.                   if (tooltip && tooltip.firstElementChild === null) {
  6929.                     let text = tooltip.textContent;
  6930.                     if (typeof text === 'string' && text.length >= 2) {
  6931.                       tooltip.textContent = text.trim();
  6932.                     }
  6933.                   }
  6934.                 }).catch(console.warn)
  6935.                 return r;
  6936.               }
  6937.  
  6938.               console.log("trim tooltip content - OK");
  6939.  
  6940.             } else {
  6941.               console.log("trim tooltip content - NG");
  6942.  
  6943.             }
  6944.  
  6945.             /*
  6946.             cProto.updatePosition61 = cProto.updatePosition;
  6947.  
  6948.  
  6949.             cProto.updatePosition = function () {
  6950.  
  6951.  
  6952.               if (this._target && this.offsetParent) {
  6953.                 var a = this.offset;
  6954.                 14 != this.marginTop && 14 == this.offset && (a = this.marginTop);
  6955.                 var b = this.offsetParent.getBoundingClientRect()
  6956.                   , c = this._target.getBoundingClientRect()
  6957.                   , d = this.getBoundingClientRect()
  6958.                   , e = (c.width - d.width) / 2
  6959.                   , h = (c.height - d.height) / 2
  6960.                   , l = c.left - b.left
  6961.                   , m = c.top - b.top;
  6962.                 switch (this.position) {
  6963.                   case "top":
  6964.                     var p = l + e;
  6965.                     var q = m - d.height - a;
  6966.                     break;
  6967.                   case "bottom":
  6968.                     p = l + e;
  6969.                     q = m + c.height + a;
  6970.                     break;
  6971.                   case "left":
  6972.                     p = l - d.width - a;
  6973.                     q = m + h;
  6974.                     break;
  6975.                   case "right":
  6976.                     p = l + c.width + a,
  6977.                       q = m + h;
  6978.                 }
  6979.  
  6980.               if(this.ascee) {
  6981.                 this.fitToVisibleBounds = false;
  6982.               }
  6983.                 this.fitToVisibleBounds ? (b.left + p + d.width > window.innerWidth ? (this.style.right = "0px",
  6984.                   this.style.left = "auto") : (this.style.left = Math.max(0, p) + "px",
  6985.                     this.style.right = "auto"),
  6986.                   b.top + q + d.height > window.innerHeight ? (this.style.bottom = b.height + "px",
  6987.                     this.style.top = "auto") : (this.style.top = Math.max(-b.top, q) + "px",
  6988.                       this.style.bottom = "auto")) : (this.style.left = p + "px",
  6989.                         this.style.top = q + "px")
  6990.               }
  6991.             }
  6992.  
  6993.             cProto.updateStyles61 = cProto.updateStyles;
  6994.             cProto.updateStyles= function(){
  6995.               if(this.ascee) return;
  6996.               return this.updateStyles61.apply(this,arguments);
  6997.             }
  6998.             */
  6999.  
  7000.  
  7001.           })();
  7002.  
  7003.           console.log("[End]");
  7004.  
  7005.           console.groupEnd();
  7006.  
  7007.         }).catch(console.warn);
  7008.  
  7009.  
  7010.  
  7011.       }
  7012.  
  7013.  
  7014.  
  7015.       if (FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK) {
  7016.  
  7017.  
  7018.         const hookDocumentMouseDownSetupFn = () => {
  7019.  
  7020.  
  7021.  
  7022.           let muzTimestamp = 0;
  7023.           let nszDropdown = null;
  7024.  
  7025.  
  7026.  
  7027.           const handlerObject = {
  7028.  
  7029.             // mdHandler282 : function (evt) {
  7030.             //   // console.log(evt, 1, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  7031.             //   if (!evt || !evt.isTrusted) return;
  7032.             //   muzTimestamp = 0;
  7033.             //   nszDropdown = null;
  7034.  
  7035.             //   const hostElement = this.hostElement || this;
  7036.             //   if (!evt || !evt.isTrusted || !hostElement.hasAttribute('menu-visible')) return;
  7037.             //   if (!hostElement.contains(evt.target)) return;
  7038.             //   let targetDropDown = null;
  7039.             //   for(const dropdown of document.querySelectorAll('tp-yt-iron-dropdown.style-scope.yt-live-chat-app')){
  7040.             //     if(dropdown && dropdown.positionTarget && hostElement.contains( dropdown.positionTarget)){
  7041.             //       targetDropDown = dropdown;
  7042.             //     }
  7043.             //   }
  7044.             //   if ((nszDropdown = targetDropDown)) {
  7045.             //     muzTimestamp = Date.now();
  7046.             //     evt.stopImmediatePropagation();
  7047.             //     evt.stopPropagation();
  7048.             //   }
  7049.  
  7050.             // },
  7051.  
  7052.  
  7053.             muHandler282: function (evt) {
  7054.               // console.log(evt, 7, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  7055.               if (!evt || !evt.isTrusted || !muzTimestamp) return;
  7056.               const dropdown = nszDropdown;
  7057.               muzTimestamp = 0;
  7058.               nszDropdown = null;
  7059.  
  7060.               const kurMPC = kRef(currentMenuPivotWR) || 0;
  7061.               const hostElement = kurMPC.hostElement || kurMPC;
  7062.               if (!hostElement.hasAttribute('menu-visible')) return;
  7063.  
  7064.               const chatBanner = HTMLElement.prototype.closest.call(hostElement, 'yt-live-chat-banner-renderer') || 0;
  7065.               if (chatBanner) return;
  7066.  
  7067.               if (dropdown && dropdown.positionTarget && hostElement.contains(dropdown.positionTarget)) {
  7068.  
  7069.                 /*
  7070.                 const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  7071.                 if(parentButton) return;
  7072.                 */
  7073.  
  7074.                 muzTimestamp = Date.now();
  7075.                 evt.stopImmediatePropagation();
  7076.                 evt.stopPropagation();
  7077.                 Promise.resolve(dropdown).then((dropdown) => {
  7078.                   dropdown.cancel();
  7079.                 });
  7080.                 // document.body.click();
  7081.               }
  7082.  
  7083.             },
  7084.  
  7085.             mlHandler282: function (evt) {
  7086.               muzTimestamp = 0;
  7087.               nszDropdown = null;
  7088.             },
  7089.  
  7090.             ckHandler282: function (evt) {
  7091.               // console.log(evt, 3, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  7092.  
  7093.               if (!evt || !evt.isTrusted || !muzTimestamp) return;
  7094.               if (Date.now() - muzTimestamp < 40) {
  7095.  
  7096.                 /*
  7097.                 const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  7098.                 if(parentButton) return;
  7099.                 */
  7100.  
  7101.                 muzTimestamp = Date.now();
  7102.                 evt.stopImmediatePropagation();
  7103.                 evt.stopPropagation();
  7104.               }
  7105.  
  7106.             },
  7107.  
  7108.             tapHandler282: function (evt) {
  7109.               // console.log(evt, 2, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  7110.  
  7111.               if (!evt || !evt.isTrusted || !muzTimestamp) return;
  7112.               if (Date.now() - muzTimestamp < 40) {
  7113.  
  7114.                 /*
  7115.                 const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  7116.                 if(parentButton) return;
  7117.                 */
  7118.  
  7119.                 muzTimestamp = Date.now();
  7120.                 evt.stopImmediatePropagation();
  7121.                 evt.stopPropagation();
  7122.               }
  7123.  
  7124.             },
  7125.  
  7126.  
  7127.             handleEvent(evt) {
  7128.  
  7129.  
  7130.               if (evt) {
  7131.                 const kurMPC = kRef(currentMenuPivotWR) || 0;
  7132.                 const cnt = insp(kurMPC);
  7133.                 const hostElement = cnt.hostElement || cnt;
  7134.                 if (!cnt || cnt.isAttached !== true || hostElement.isConnected !== true) return;
  7135.                 switch (evt.type) {
  7136.                   // case 'mousedown':
  7137.                   // return this.mdHandler282.call(kurMPC, evt);
  7138.                   case 'mouseup':
  7139.                     return this.muHandler282(evt);
  7140.                   case 'mouseleave':
  7141.                     return this.mlHandler282(evt);
  7142.                   case 'tap':
  7143.                     return this.tapHandler282(evt);
  7144.                   case 'click':
  7145.                     return this.ckHandler282(evt);
  7146.                 }
  7147.               }
  7148.  
  7149.             }
  7150.  
  7151.  
  7152.  
  7153.           }
  7154.  
  7155.           document.addEventListener('mousedown', function (evt) {
  7156.  
  7157.             if (!evt || !evt.isTrusted || !evt.target) return;
  7158.  
  7159.  
  7160.  
  7161.             muzTimestamp = 0;
  7162.             nszDropdown = null;
  7163.  
  7164.             /*
  7165.             const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  7166.             if(parentButton){
  7167.               const kurMPC = HTMLElement.prototype.closest.call(parentButton, '[whole-message-clickable]') || 0;
  7168.               if(kurMPC){
  7169.                 evt.preventDefault();
  7170.                 evt.stopImmediatePropagation();
  7171.                 evt.stopPropagation();
  7172.               }
  7173.               return;
  7174.             }
  7175.             */
  7176.  
  7177.             /** @type {HTMLElement | null} */
  7178.             const kurMP = kRef(currentMenuPivotWR);
  7179.             if (!kurMP) return;
  7180.             const kurMPC = HTMLElement.prototype.closest.call(kurMP, '[menu-visible]') || 0;
  7181.  
  7182.             if (!kurMPC || !kurMPC.hasAttribute('whole-message-clickable')) return;
  7183.  
  7184.             if (!kurMPC.isClickableChatRow111 || !kurMPC.isClickableChatRow111() || !HTMLElement.prototype.contains.call(kurMPC, evt.target)) return;
  7185.  
  7186.             const chatBanner = HTMLElement.prototype.closest.call(kurMPC, 'yt-live-chat-banner-renderer') || 0;
  7187.             if (chatBanner) return;
  7188.  
  7189.  
  7190.             let targetDropDown = null;
  7191.             for (const dropdown of document.querySelectorAll('tp-yt-iron-dropdown.style-scope.yt-live-chat-app')) {
  7192.               if (dropdown && dropdown.positionTarget === kurMP) {
  7193.                 targetDropDown = dropdown;
  7194.               }
  7195.             }
  7196.  
  7197.             if (!targetDropDown) return;
  7198.  
  7199.  
  7200.             /*
  7201.             if (parentButton) {
  7202.               evt.preventDefault();
  7203.               evt.stopImmediatePropagation();
  7204.               evt.stopPropagation();
  7205.               currentMenuPivotWR = mWeakRef(kurMPC);
  7206.               return;
  7207.             }
  7208.             */
  7209.  
  7210.             if ((nszDropdown = targetDropDown)) {
  7211.               muzTimestamp = Date.now();
  7212.               evt.stopImmediatePropagation();
  7213.               evt.stopPropagation();
  7214.               currentMenuPivotWR = mWeakRef(kurMPC);
  7215.  
  7216.               const listenOpts = { capture: true, passive: false, once: true };
  7217.  
  7218.               // remove unexcecuted eventHandler
  7219.               document.removeEventListener('mouseup', handlerObject, listenOpts);
  7220.               document.removeEventListener('mouseleave', handlerObject, listenOpts);
  7221.               document.removeEventListener('tap', handlerObject, listenOpts);
  7222.               document.removeEventListener('click', handlerObject, listenOpts);
  7223.  
  7224.               // inject one time eventHandler to by pass events
  7225.               document.addEventListener('mouseup', handlerObject, listenOpts);
  7226.               document.addEventListener('mouseleave', handlerObject, listenOpts);
  7227.               document.addEventListener('tap', handlerObject, listenOpts);
  7228.               document.addEventListener('click', handlerObject, listenOpts);
  7229.  
  7230.             }
  7231.  
  7232.           }, true);
  7233.  
  7234.         }
  7235.  
  7236.  
  7237.         // yt-live-chat-paid-message-renderer ??
  7238.  
  7239.         /*
  7240.  
  7241.         [...(new Set([...document.querySelectorAll('*')].filter(e=>e.is&&('shouldSupportWholeItemClick' in e)).map(e=>e.is))).keys()]
  7242.  
  7243.  
  7244.         "yt-live-chat-ticker-paid-message-item-renderer"
  7245.         "yt-live-chat-ticker-paid-sticker-item-renderer"
  7246.         "yt-live-chat-paid-message-renderer"
  7247.         "yt-live-chat-text-message-renderer"
  7248.         "yt-live-chat-paid-sticker-renderer"
  7249.  
  7250.         */
  7251.  
  7252.  
  7253.         whenDefinedMultiple([
  7254.  
  7255.           "yt-live-chat-paid-message-renderer",
  7256.           "yt-live-chat-membership-item-renderer",
  7257.           "yt-live-chat-paid-sticker-renderer",
  7258.           "yt-live-chat-text-message-renderer",
  7259.           "yt-live-chat-auto-mod-message-renderer",
  7260.  
  7261.           /*
  7262.           "yt-live-chat-ticker-paid-message-item-renderer",
  7263.           "yt-live-chat-ticker-paid-sticker-item-renderer",
  7264.           "yt-live-chat-paid-message-renderer",
  7265.           "yt-live-chat-text-message-renderer",
  7266.           "yt-live-chat-paid-sticker-renderer",
  7267.  
  7268.           "yt-live-chat-ticker-sponsor-item-renderer",
  7269.           "yt-live-chat-banner-header-renderer",
  7270.           "ytd-sponsorships-live-chat-gift-purchase-announcement-renderer",
  7271.           "ytd-sponsorships-live-chat-header-renderer",
  7272.           "ytd-sponsorships-live-chat-gift-redemption-announcement-renderer",
  7273.  
  7274.  
  7275.  
  7276.  
  7277.           "yt-live-chat-auto-mod-message-renderer",
  7278.           "yt-live-chat-text-message-renderer",
  7279.           "yt-live-chat-paid-message-renderer",
  7280.  
  7281.           "yt-live-chat-legacy-paid-message-renderer",
  7282.           "yt-live-chat-membership-item-renderer",
  7283.           "yt-live-chat-paid-sticker-renderer",
  7284.           "yt-live-chat-donation-announcement-renderer",
  7285.           "yt-live-chat-moderation-message-renderer",
  7286.           "ytd-sponsorships-live-chat-gift-purchase-announcement-renderer",
  7287.           "ytd-sponsorships-live-chat-gift-redemption-announcement-renderer",
  7288.           "yt-live-chat-viewer-engagement-message-renderer",
  7289.  
  7290.           */
  7291.  
  7292.  
  7293.         ]).then(sTags => {
  7294.  
  7295.  
  7296.           mightFirstCheckOnYtInit();
  7297.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-message-renderer(s)... hacks");
  7298.           console.log("[Begin]");
  7299.           let doMouseHook = false;
  7300.  
  7301.           const dProto = {
  7302.             isClickableChatRow111: function () {
  7303.               return (
  7304.                 this.data && typeof this.shouldSupportWholeItemClick === 'function' && typeof this.hasModerationOverlayVisible === 'function' &&
  7305.                 this.data.contextMenuEndpoint && this.wholeMessageClickable && this.shouldSupportWholeItemClick() && !this.hasModerationOverlayVisible()
  7306.               ); // follow .onItemTap(a)
  7307.             }
  7308.           };
  7309.  
  7310.           for (const sTag of sTags) { // ##tag##
  7311.  
  7312.  
  7313.             (() => {
  7314.  
  7315.               const tag = sTag;
  7316.               const dummy = document.createElement(tag);
  7317.  
  7318.               const cProto = getProto(dummy);
  7319.               if (!cProto || !cProto.attached) {
  7320.                 console.warn(`proto.attached for ${tag} is unavailable.`);
  7321.                 return;
  7322.               }
  7323.  
  7324.               const dCnt = insp(dummy);
  7325.               if ('wholeMessageClickable' in dCnt && typeof dCnt.hasModerationOverlayVisible === 'function' && typeof dCnt.shouldSupportWholeItemClick === 'function') {
  7326.  
  7327.                 cProto.isClickableChatRow111 = dProto.isClickableChatRow111;
  7328.  
  7329.                 const toHookDocumentMouseDown = typeof cProto.shouldSupportWholeItemClick === 'function' && typeof cProto.hasModerationOverlayVisible === 'function';
  7330.  
  7331.                 if (toHookDocumentMouseDown) {
  7332.                   doMouseHook = true;
  7333.                 }
  7334.  
  7335.                 console.log("shouldSupportWholeItemClick Y", tag);
  7336.  
  7337.               } else {
  7338.  
  7339.                 console.log("shouldSupportWholeItemClick N", tag);
  7340.               }
  7341.  
  7342.  
  7343.             })();
  7344.  
  7345.           }
  7346.  
  7347.  
  7348.           if (doMouseHook) {
  7349.  
  7350.             hookDocumentMouseDownSetupFn();
  7351.  
  7352.  
  7353.             console.log("FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK - Doc MouseEvent OK");
  7354.           }
  7355.  
  7356.           console.log("[End]");
  7357.  
  7358.           console.groupEnd();
  7359.  
  7360.  
  7361.         }).catch(console.warn);
  7362.  
  7363.  
  7364.         // https://www.youtube.com/watch?v=oQzFi1NO7io
  7365.  
  7366.  
  7367.       }
  7368.  
  7369.       if (NO_ITEM_TAP_FOR_NON_STATIONARY_TAP) {
  7370.         let targetElementCntWR = null;
  7371.         let _e0 = null;
  7372.         document.addEventListener('mousedown', (e) => {
  7373.           if (!e || !e.isTrusted) return;
  7374.           let element = e.target;
  7375.           for (; element instanceof HTMLElement; element = element.parentNode) {
  7376.             if (element.is) break;
  7377.           }
  7378.           if (!element || !element.is) return;
  7379.           const cnt = insp(element);
  7380.           if (typeof cnt.onItemTap === 'function') {
  7381.             cnt._onItemTap_isNonStationary = 0;
  7382.             const cProto = getProto(element);
  7383.             if (!cProto.onItemTap366 && typeof cProto.onItemTap === 'function' && cProto.onItemTap.length === 1) {
  7384.               cProto.onItemTap366 = cProto.onItemTap;
  7385.               cProto.onItemTap = function (a) {
  7386.                 const t = this._onItemTap_isNonStationary;
  7387.                 this._onItemTap_isNonStationary = 0;
  7388.                 if (t > Date.now()) return;
  7389.                 return this.onItemTap366.apply(this, arguments)
  7390.               }
  7391.             }
  7392.             _e0 = e;
  7393.             targetElementCntWR = mWeakRef(cnt);
  7394.           } else {
  7395.             _e0 = null;
  7396.             targetElementCntWR = null;
  7397.           }
  7398.         }, { capture: true, passive: true });
  7399.  
  7400.         document.addEventListener('mouseup', (e) => {
  7401.           if (!e || !e.isTrusted) return;
  7402.           const e0 = _e0;
  7403.           _e0 = null;
  7404.           if (!e0) return;
  7405.           const cnt = kRef(targetElementCntWR);
  7406.           targetElementCntWR = null;
  7407.           if (!cnt) return;
  7408.           if (e.timeStamp - e0.timeStamp > TAP_ACTION_DURATION) {
  7409.             cnt._onItemTap_isNonStationary = Date.now() + 40;
  7410.           } else if ((window.getSelection() + "").trim().replace(/[\u2000-\u200a\u202f\u2800\u200B\u200C\u200D\uFEFF]+/g, '').length >= 1) {
  7411.             cnt._onItemTap_isNonStationary = Date.now() + 40;
  7412.           } else {
  7413.             const dx = e.clientX - e0.clientX;
  7414.             const dy = e.clientY - e0.clientY;
  7415.             const dd = Math.sqrt(dx * dx + dy * dy);
  7416.             const ddmm = px2mm(dd);
  7417.             if (ddmm > 1.0) {
  7418.               cnt._onItemTap_isNonStationary = Date.now() + 40;
  7419.             } else {
  7420.               cnt._onItemTap_isNonStationary = 0;
  7421.             }
  7422.           }
  7423.         }, { capture: true, passive: true });
  7424.  
  7425.       }
  7426.  
  7427.  
  7428.       const __showContextMenu_assign_lock_with_external_unlock_ = function (targetCnt) {
  7429.  
  7430.         let rr = null;
  7431.         const p1 = new Promise(resolve => {
  7432.           rr = resolve;
  7433.         });
  7434.  
  7435.         const p1unlock = () => {
  7436.           const f = rr;
  7437.           if (f) {
  7438.             rr = null;
  7439.             f();
  7440.           }
  7441.         }
  7442.  
  7443.         return {
  7444.           p1,
  7445.           p1unlock,
  7446.           assignLock: (targetCnt, timeout) => {
  7447.             targetCnt.__showContextMenu_assign_lock__(p1);
  7448.             if (timeout) setTimeout(p1unlock, timeout);
  7449.           }
  7450.         }
  7451.  
  7452.       }
  7453.  
  7454.       if (PREREQUEST_CONTEXT_MENU_ON_MOUSE_DOWN) {
  7455.  
  7456.         document.addEventListener('mousedown', function (evt) {
  7457.  
  7458.           const maxloopDOMTreeElements = 4;
  7459.           const maxloopYtCompontents = 4;
  7460.           let j1 = 0;
  7461.           let j2 = 0;
  7462.           let target = (evt || 0).target || 0;
  7463.           if (!target) return;
  7464.  
  7465.  
  7466.           while (target instanceof HTMLElement) {
  7467.             if (++j1 > maxloopDOMTreeElements) break;
  7468.             if (typeof (target.is || insp(target).is || null) === 'string') break;
  7469.             target = nodeParent(target);
  7470.           }
  7471.           const components = [];
  7472.           while (target instanceof HTMLElement) {
  7473.             if (++j2 > maxloopYtCompontents) break;
  7474.             const cnt = insp(target);
  7475.             if (typeof (target.is || cnt.is || null) === 'string') {
  7476.               components.push(target);
  7477.             }
  7478.             if (typeof cnt.showContextMenu === 'function') break;
  7479.             target = target.parentComponent || cnt.parentComponent || null;
  7480.           }
  7481.           if (!(target instanceof HTMLElement)) return;
  7482.           const targetCnt = insp(target);
  7483.           if (typeof targetCnt.handleGetContextMenuResponse_ !== 'function' || typeof targetCnt.handleGetContextMenuError !== 'function') {
  7484.             console.log('Error Found: handleGetContextMenuResponse_ OR handleGetContextMenuError is not defined on a component with showContextMenu')
  7485.             return;
  7486.           }
  7487.  
  7488.           const endpoint = (targetCnt.data || 0).contextMenuEndpoint
  7489.           if (!endpoint) return;
  7490.           if (targetCnt.opened || !targetCnt.isAttached) return;
  7491.  
  7492.           if (typeof targetCnt.__cacheResolvedEndpointData__ !== 'function') {
  7493.             console.log(`preRequest for showContextMenu in ${targetCnt.is} is not yet supported.`)
  7494.           }
  7495.  
  7496.           const targetDollar = indr(target);
  7497.  
  7498.           let doPreRequest = false;
  7499.           if (components.length >= 2 && components[0].id === 'menu-button' && (targetDollar || 0)['menu-button'] === components[0]) {
  7500.             doPreRequest = true;
  7501.           } else if (components.length === 1 && components[0] === target) {
  7502.             doPreRequest = true;
  7503.           } else if (components.length >= 2 && components[0].id === 'author-photo' && (targetDollar || 0)['author-photo'] === components[0]) {
  7504.             doPreRequest = true;
  7505.           }
  7506.           if (doPreRequest === false) {
  7507.             console.log('doPreRequest = fasle on showContextMenu', components);
  7508.             return;
  7509.           }
  7510.  
  7511.           if (typeof targetCnt.__getCachedEndpointData__ !== 'function' || targetCnt.__getCachedEndpointData__(endpoint)) return;
  7512.  
  7513.           if ((typeof targetCnt.__showContextMenu_mutex_unlock_isEmpty__ === 'function') && !targetCnt.__showContextMenu_mutex_unlock_isEmpty__()) {
  7514.             console.log('preRequest on showContextMenu aborted due to stacked network request');
  7515.             return;
  7516.           }
  7517.  
  7518.  
  7519.           const onSuccess = (a) => {
  7520.             /*
  7521.  
  7522.               dQ() && (a = a.response);
  7523.               a.liveChatItemContextMenuSupportedRenderers && a.liveChatItemContextMenuSupportedRenderers.menuRenderer && this.showContextMenu_(a.liveChatItemContextMenuSupportedRenderers.menuRenderer);
  7524.               a.actions && Eu(this.hostElement, "yt-live-chat-actions", [a.actions])
  7525.  
  7526.             */
  7527.  
  7528.             a = a.response || a;
  7529.  
  7530.             if (!a) {
  7531.               console.log('unexpected error in prerequest for showContextMenu.onSuccess');
  7532.               return;
  7533.             }
  7534.  
  7535.             let z = null;
  7536.             a.liveChatItemContextMenuSupportedRenderers && a.liveChatItemContextMenuSupportedRenderers.menuRenderer && (z = a.liveChatItemContextMenuSupportedRenderers.menuRenderer);
  7537.  
  7538.             if (z) {
  7539.               a = z;
  7540.               targetCnt.__cacheResolvedEndpointData__(endpoint, a, true);
  7541.             }
  7542.  
  7543.           };
  7544.           const onFailure = (a) => {
  7545.  
  7546.             /*
  7547.  
  7548.               if (a instanceof Error || a instanceof Object || a instanceof String)
  7549.                   var b = a;
  7550.               hq(new xm("Error encountered calling GetLiveChatItemContextMenu",b))
  7551.  
  7552.             */
  7553.  
  7554.             targetCnt.__cacheResolvedEndpointData__(endpoint, null);
  7555.             // console.log('onFailure', a)
  7556.  
  7557.           };
  7558.  
  7559.           if (doPreRequest) {
  7560.  
  7561.             let propertyCounter = 0;
  7562.             const pm1 = __showContextMenu_assign_lock_with_external_unlock_(targetCnt);
  7563.             const p1Timeout = 800;
  7564.             const proxyKey = '__$$__proxy_to_this__$$__' + Date.now();
  7565.  
  7566.             try {
  7567.  
  7568.               const onSuccessHelperFn = function () {
  7569.                 pm1.p1unlock();
  7570.                 if (propertyCounter !== 5) {
  7571.                   console.log('Error in prerequest for showContextMenu.onSuccessHelperFn')
  7572.                   return;
  7573.                 }
  7574.                 if (this[proxyKey] !== targetCnt) {
  7575.                   console.log('Error in prerequest for showContextMenu.this');
  7576.                   return;
  7577.                 }
  7578.                 onSuccess(...arguments);
  7579.               };
  7580.               const onFailureHelperFn = function () {
  7581.                 pm1.p1unlock();
  7582.                 if (propertyCounter !== 5) {
  7583.                   console.log('Error in prerequest for showContextMenu.onFailureHelperFn')
  7584.                   return;
  7585.                 }
  7586.                 if (this[proxyKey] !== targetCnt) {
  7587.                   console.log('Error in prerequest for showContextMenu.this');
  7588.                   return;
  7589.                 }
  7590.                 onFailure(...arguments);
  7591.  
  7592.               }
  7593.               const fakeTargetCnt = new Proxy({
  7594.                 __showContextMenu_forceNativeRequest__: 1,
  7595.                 __showContextMenu_sync_mode_request__: 1,
  7596.                 get handleGetContextMenuResponse_() {
  7597.                   propertyCounter += 2;
  7598.                   return onSuccessHelperFn;
  7599.                 },
  7600.                 get handleGetContextMenuError() {
  7601.                   propertyCounter += 3;
  7602.                   return onFailureHelperFn;
  7603.                 }
  7604.               }, {
  7605.                 get(_, key, receiver) {
  7606.                   if (key in _) return _[key];
  7607.                   if (key === proxyKey) return targetCnt;
  7608.  
  7609.                   let giveNative = false;
  7610.                   if (key in targetCnt) {
  7611.                     if (key === 'data') giveNative = true;
  7612.                     else if (typeof targetCnt[key] === 'function') giveNative = true;
  7613.                   }
  7614.                   if (giveNative) return targetCnt[key];
  7615.                 }
  7616.               });
  7617.  
  7618.               const fakeEvent = (() => {
  7619.                 const { target, bubbles, cancelable, cancelBubble, srcElement, timeStamp, defaultPrevented, currentTarget, composed } = evt;
  7620.                 const nf = function () { }
  7621.                 const [stopPropagation, stopImmediatePropagation, preventDefault] = [nf, nf, nf];
  7622.  
  7623.                 return {
  7624.                   type: 'tap',
  7625.                   eventPhase: 0,
  7626.                   isTrusted: false,
  7627.                   __composed: true,
  7628.                   bubbles, cancelable, cancelBubble, timeStamp,
  7629.                   target, srcElement, defaultPrevented, currentTarget, composed,
  7630.                   stopPropagation, stopImmediatePropagation, preventDefault
  7631.                 };
  7632.               })(evt);
  7633.               targetCnt.showContextMenu.call(fakeTargetCnt, fakeEvent);
  7634.  
  7635.  
  7636.             } catch (e) {
  7637.               console.warn(e);
  7638.               propertyCounter = 7;
  7639.  
  7640.             }
  7641.             if (propertyCounter !== 5) {
  7642.               console.log('Error in prerequest for showContextMenu', propertyCounter);
  7643.               return;
  7644.             }
  7645.  
  7646.             pm1.assignLock(targetCnt, p1Timeout);
  7647.  
  7648.           }
  7649.  
  7650.  
  7651.  
  7652.  
  7653.  
  7654.  
  7655.         }, true);
  7656.  
  7657.  
  7658.       }
  7659.  
  7660.  
  7661.  
  7662.       /*
  7663.  
  7664.       const w=new Set(); for(const a of document.getElementsByTagName('*')) if(a.showContextMenu && a.showContextMenu_) w.add(a.is||''); console.log([...w.keys()])
  7665.  
  7666.       */
  7667.  
  7668.       whenDefinedMultiple([
  7669.         "yt-live-chat-ticker-sponsor-item-renderer",
  7670.         "yt-live-chat-banner-header-renderer",
  7671.         "yt-live-chat-text-message-renderer",
  7672.         "ytd-sponsorships-live-chat-gift-purchase-announcement-renderer",
  7673.         "ytd-sponsorships-live-chat-header-renderer",
  7674.         "ytd-sponsorships-live-chat-gift-redemption-announcement-renderer",
  7675.  
  7676.         "yt-live-chat-paid-sticker-renderer",
  7677.         "yt-live-chat-viewer-engagement-message-renderer",
  7678.         "yt-live-chat-paid-message-renderer"
  7679.  
  7680.  
  7681.  
  7682.  
  7683.       ]).then(sTags => {
  7684.  
  7685.         mightFirstCheckOnYtInit();
  7686.         groupCollapsed("YouTube Super Fast Chat", " | fixShowContextMenu");
  7687.         console.log("[Begin]");
  7688.  
  7689.  
  7690.         const __showContextMenu_mutex__ = new Mutex();
  7691.         let __showContextMenu_mutex_unlock__ = null;
  7692.         let lastShowMenuTarget = null;
  7693.  
  7694.  
  7695.  
  7696.  
  7697.         const wm37 = new WeakMap();
  7698.  
  7699.         const dProto = {
  7700.  
  7701.  
  7702.           // CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN
  7703.  
  7704.           __cacheResolvedEndpointData__: (endpoint, a, doDeepCopy) => {
  7705.             if (a) {
  7706.               if (doDeepCopy) a = deepCopy(a);
  7707.               wm37.set(endpoint, a);
  7708.             } else {
  7709.               wm37.remove(endpoint);
  7710.             }
  7711.           },
  7712.           __getCachedEndpointData__: function (endpoint) {
  7713.             endpoint = endpoint || (this.data || 0).contextMenuEndpoint || 0;
  7714.             if (endpoint) return wm37.get(endpoint);
  7715.             return null;
  7716.           },
  7717.           /** @type {(resolvedEndpoint: any) => void 0} */
  7718.           __showCachedContextMenu__: function (resolvedEndpoint) { // non-null
  7719.  
  7720.             resolvedEndpoint = deepCopy(resolvedEndpoint);
  7721.             // let b = deepCopy(resolvedEndpoint, ['trackingParams', 'clickTrackingParams'])
  7722.             Promise.resolve(resolvedEndpoint).then(() => {
  7723.               this.__showContextMenu_skip_cacheResolvedEndpointData__ = 1;
  7724.               this.showContextMenu_(resolvedEndpoint);
  7725.               this.__showContextMenu_skip_cacheResolvedEndpointData__ = 0;
  7726.             });
  7727.  
  7728.  
  7729.           },
  7730.  
  7731.  
  7732.  
  7733.           showContextMenuForCacheReopen: function (a) {
  7734.             if (!this.__showContextMenu_forceNativeRequest__) {
  7735.               const endpoint = (this.data || 0).contextMenuEndpoint || 0;
  7736.               if (endpoint) {
  7737.                 const resolvedEndpoint = this.__getCachedEndpointData__(endpoint);
  7738.                 if (resolvedEndpoint) {
  7739.                   this.__showCachedContextMenu__(resolvedEndpoint);
  7740.                   a && a.stopPropagation()
  7741.                   return;
  7742.                 }
  7743.               }
  7744.             }
  7745.             return this.showContextMenu37(a);
  7746.           },
  7747.  
  7748.           showContextMenuForCacheReopen_: function (a) {
  7749.             if (!this.__showContextMenu_skip_cacheResolvedEndpointData__) {
  7750.               const endpoint = (this.data || 0).contextMenuEndpoint || 0;
  7751.               if (endpoint) {
  7752.                 const f = this.__cacheResolvedEndpointData__;
  7753.                 if (typeof f === 'function') f(endpoint, a, true);
  7754.               }
  7755.             }
  7756.             return this.showContextMenu37_(a);
  7757.           },
  7758.  
  7759.           // ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU
  7760.  
  7761.           showContextMenuWithDisableScroll: function (a) {
  7762.  
  7763.             const endpoint = (this.data || 0).contextMenuEndpoint || 0;
  7764.             if (endpoint && typeof this.is === 'string' && this.menuVisible === false && this.menuOpen === false) {
  7765.  
  7766.               const parentComponent = this.parentComponent;
  7767.               if (parentComponent && parentComponent.is === 'yt-live-chat-item-list-renderer' && parentComponent.contextMenuOpen === false && parentComponent.allowScroll === true) {
  7768.                 parentComponent.allowScroll = false;
  7769.               }
  7770.             }
  7771.  
  7772.             return this.showContextMenu48.apply(this, arguments);
  7773.  
  7774.           },
  7775.  
  7776.           // ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU
  7777.  
  7778.           __showContextMenu_mutex_unlock_isEmpty__: () => {
  7779.             return __showContextMenu_mutex_unlock__ === null;
  7780.           },
  7781.  
  7782.           __showContextMenu_assign_lock__: function (p) {
  7783.  
  7784.             const mutex = __showContextMenu_mutex__;
  7785.  
  7786.             mutex.lockWith(unlock => {
  7787.               p.then(unlock);
  7788.             });
  7789.  
  7790.           },
  7791.  
  7792.           showContextMenuWithMutex: function (a) {
  7793.             lastShowMenuTarget = this;
  7794.  
  7795.             if (this.__showContextMenu_sync_mode_request__) {
  7796.  
  7797.               return this.showContextMenu47(a);
  7798.             } else {
  7799.  
  7800.               const mutex = __showContextMenu_mutex__;
  7801.  
  7802.               mutex.lockWith(unlock => {
  7803.                 if (lastShowMenuTarget !== this) {
  7804.                   unlock();
  7805.                   return;
  7806.                 }
  7807.  
  7808.                 setTimeout(unlock, 800); // in case network failure
  7809.                 __showContextMenu_mutex_unlock__ = unlock;
  7810.                 try {
  7811.                   this.showContextMenu47(a);
  7812.                 } catch (e) {
  7813.                   console.warn(e);
  7814.                   unlock(); // in case function script error
  7815.                 }
  7816.  
  7817.               });
  7818.  
  7819.             }
  7820.  
  7821.  
  7822.           },
  7823.  
  7824.           showContextMenuWithMutex_: function (a) {
  7825.  
  7826.             if (__showContextMenu_mutex_unlock__ && this === lastShowMenuTarget) {
  7827.               __showContextMenu_mutex_unlock__();
  7828.               __showContextMenu_mutex_unlock__ = null;
  7829.             }
  7830.             return this.showContextMenu47_(a);
  7831.  
  7832.           }
  7833.  
  7834.         }
  7835.  
  7836.         for (const tag of sTags) { // ##tag##
  7837.  
  7838.  
  7839.  
  7840.           (() => {
  7841.  
  7842.             const dummy = document.createElement(tag);
  7843.  
  7844.             const cProto = getProto(dummy);
  7845.             if (!cProto || !cProto.attached) {
  7846.               console.warn(`proto.attached for ${tag} is unavailable.`);
  7847.               return;
  7848.             }
  7849.  
  7850.  
  7851.  
  7852.  
  7853.             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) {
  7854.  
  7855.               cProto.showContextMenu37_ = cProto.showContextMenu_;
  7856.               cProto.showContextMenu37 = cProto.showContextMenu;
  7857.  
  7858.               cProto.__showContextMenu_forceNativeRequest__ = 0;
  7859.               cProto.__cacheResolvedEndpointData__ = dProto.__cacheResolvedEndpointData__
  7860.               cProto.__getCachedEndpointData__ = dProto.__getCachedEndpointData__
  7861.               cProto.__showCachedContextMenu__ = dProto.__showCachedContextMenu__
  7862.  
  7863.               cProto.showContextMenu = dProto.showContextMenuForCacheReopen;
  7864.  
  7865.               cProto.showContextMenu_ = dProto.showContextMenuForCacheReopen_;
  7866.  
  7867.  
  7868.               console.log("CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN - OK", tag);
  7869.  
  7870.  
  7871.  
  7872.             } else {
  7873.  
  7874.               console.log("CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN - NG", tag);
  7875.  
  7876.             }
  7877.  
  7878.  
  7879.  
  7880.             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) {
  7881.  
  7882.  
  7883.               cProto.showContextMenu48 = cProto.showContextMenu;
  7884.  
  7885.  
  7886.               cProto.showContextMenu = dProto.showContextMenuWithDisableScroll;
  7887.  
  7888.  
  7889.  
  7890.               console.log("ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU - OK", tag);
  7891.  
  7892.  
  7893.  
  7894.             } else {
  7895.  
  7896.               console.log("ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU - NG", tag);
  7897.  
  7898.             }
  7899.  
  7900.  
  7901.  
  7902.  
  7903.  
  7904.             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) {
  7905.  
  7906.               cProto.showContextMenu47_ = cProto.showContextMenu_;
  7907.               cProto.showContextMenu47 = cProto.showContextMenu;
  7908.  
  7909.               cProto.__showContextMenu_mutex_unlock_isEmpty__ = dProto.__showContextMenu_mutex_unlock_isEmpty__;
  7910.               cProto.__showContextMenu_assign_lock__ = dProto.__showContextMenu_assign_lock__;
  7911.               cProto.showContextMenu = dProto.showContextMenuWithMutex;
  7912.               cProto.showContextMenu_ = dProto.showContextMenuWithMutex_;
  7913.  
  7914.               console.log("ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU - OK", tag);
  7915.  
  7916.  
  7917.  
  7918.             } else {
  7919.  
  7920.               console.log("ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU - NG", tag);
  7921.  
  7922.             }
  7923.  
  7924.  
  7925.  
  7926.  
  7927.           })();
  7928.  
  7929.         }
  7930.  
  7931.  
  7932.  
  7933.         console.log("[End]");
  7934.  
  7935.         console.groupEnd();
  7936.  
  7937.       }).catch(console.warn);
  7938.  
  7939.  
  7940.  
  7941.       customElements.whenDefined('tp-yt-iron-dropdown').then(() => {
  7942.  
  7943.         mightFirstCheckOnYtInit();
  7944.         groupCollapsed("YouTube Super Fast Chat", " | tp-yt-iron-dropdown hacks");
  7945.         console.log("[Begin]");
  7946.         (() => {
  7947.  
  7948.           const tag = "tp-yt-iron-dropdown";
  7949.           const dummy = document.createElement(tag);
  7950.  
  7951.           const cProto = getProto(dummy);
  7952.           if (!cProto || !cProto.attached) {
  7953.             console.warn(`proto.attached for ${tag} is unavailable.`);
  7954.             return;
  7955.           }
  7956.  
  7957.  
  7958.           if (USE_VANILLA_DEREF && typeof cProto.__deraf === 'function' && cProto.__deraf.length === 2 && !cProto.__deraf34 && fnIntegrity(cProto.__deraf) === '2.42.24') {
  7959.             cProto.__deraf_hn__ = function (sId, fn) {
  7960.               const rhKey = `_rafHandler_${sId}`;
  7961.               const m = this[rhKey] || (this[rhKey] = new WeakMap());
  7962.               if (m.has(fn)) return m.get(fn);
  7963.               const resFn = () => {
  7964.                 this.__rafs[sId] = null;
  7965.                 fn.call(this)
  7966.               };
  7967.               m.set(fn, resFn);
  7968.               m.set(resFn, resFn);
  7969.               return resFn;
  7970.             };
  7971.             cProto.__deraf34 = cProto.__deraf;
  7972.             cProto.__deraf = function (a, b) { // sId, fn
  7973.               let c = this.__rafs;
  7974.               null !== c[a] && cancelAnimationFrame(c[a]);
  7975.               c[a] = requestAnimationFrame(this.__deraf_hn__(a, b));
  7976.             };
  7977.             console.log("USE_VANILLA_DEREF - OK");
  7978.           } else {
  7979.             console.log("USE_VANILLA_DEREF - NG");
  7980.           }
  7981.  
  7982.           if (FIX_DROPDOWN_DERAF && typeof cProto.__deraf === 'function' && cProto.__deraf.length === 2 && !cProto.__deraf66) {
  7983.             cProto.__deraf66 = cProto.__deraf;
  7984.             cProto.__deraf = function (sId, fn) {
  7985.               if (this.__byPassRAF__) {
  7986.                 Promise.resolve().then(() => {
  7987.                   fn.call(this);
  7988.                 });
  7989.               }
  7990.               let r = this.__deraf66.apply(this, arguments);
  7991.               return r;
  7992.             }
  7993.             console.log("FIX_DROPDOWN_DERAF - OK");
  7994.           } else {
  7995.             console.log("FIX_DROPDOWN_DERAF - NG");
  7996.           }
  7997.  
  7998.  
  7999.           if (BOOST_MENU_OPENCHANGED_RENDERING && typeof cProto.__openedChanged === 'function' && !cProto.__mtChanged__ && fnIntegrity(cProto.__openedChanged) === '0.46.20') {
  8000.  
  8001.             let lastClose = null;
  8002.             let lastOpen = null;
  8003.             let cid = 0;
  8004.  
  8005.             cProto.__mtChanged__ = function (b) {
  8006.  
  8007.               Promise.resolve().then(() => {
  8008.                 this._applyFocus();
  8009.               }).then(() => {
  8010.                 b ? this._renderOpened() : this._renderClosed();
  8011.               }).catch(console.warn);
  8012.  
  8013.             };
  8014.  
  8015.             const __moChanged__ = () => {
  8016.               if (!cid) return;
  8017.               // console.log(553, !!lastOpen, !!lastClose);
  8018.               cid = 0;
  8019.               if (lastOpen && !lastClose && lastOpen.isAttached) {
  8020.                 lastOpen.__mtChanged__(1)
  8021.               } else if (lastClose && !lastOpen && lastClose.isAttached) {
  8022.                 lastClose.__mtChanged__(0);
  8023.               }
  8024.               lastOpen = null;
  8025.               lastClose = null;
  8026.             };
  8027.  
  8028.  
  8029.             if (typeof cProto._openedChanged === 'function' && !cProto._openedChanged66) {
  8030.               cProto._openedChanged66 = cProto._openedChanged;
  8031.               cProto._openedChanged = function () {
  8032.                 // this.__byPassRAF__ = !lastOpen ? true : false; // or just true?
  8033.                 this.__byPassRAF__ = true;
  8034.                 let r = this._openedChanged66.apply(this, arguments);
  8035.                 this.__byPassRAF__ = false;
  8036.                 return r;
  8037.               }
  8038.             }
  8039.  
  8040.             const pSetGet = (key, pdThis, pdBase) => {
  8041.               // note: this is not really a standard way for the getOwnPropertyDescriptors; but it is sufficient to make the job done
  8042.               return {
  8043.                 get: (pdThis[key] || 0).get || (pdBase[key] || 0).get,
  8044.                 set: (pdThis[key] || 0).set || (pdBase[key] || 0).set
  8045.               };
  8046.             };
  8047.  
  8048.             cProto.__modifiedMenuPropsFn__ = function () {
  8049.               const pdThis = Object.getOwnPropertyDescriptors(this.constructor.prototype)
  8050.               const pdBase = Object.getOwnPropertyDescriptors(this)
  8051.  
  8052.               const pdAutoFitOnAttach = pSetGet('autoFitOnAttach', pdThis, pdBase);
  8053.               const pdExpandSizingTargetForScrollbars = pSetGet('expandSizingTargetForScrollbars', pdThis, pdBase);
  8054.               const pdAllowOutsideScroll = pSetGet('allowOutsideScroll', pdThis, pdBase);
  8055.  
  8056.               if (pdAutoFitOnAttach.get || pdAutoFitOnAttach.set) {
  8057.                 console.warn('there is setter/getter for autoFitOnAttach');
  8058.                 return;
  8059.               }
  8060.               if (pdExpandSizingTargetForScrollbars.get || pdExpandSizingTargetForScrollbars.set) {
  8061.                 console.warn('there is setter/getter for expandSizingTargetForScrollbars');
  8062.                 return;
  8063.               }
  8064.               if (!pdAllowOutsideScroll.get || !pdAllowOutsideScroll.set) {
  8065.                 console.warn('there is NO setter-getter for allowOutsideScroll');
  8066.                 return;
  8067.               }
  8068.  
  8069.               let { autoFitOnAttach, expandSizingTargetForScrollbars, allowOutsideScroll } = this;
  8070.  
  8071.               this.__AllowOutsideScrollPD__ = pdAllowOutsideScroll;
  8072.  
  8073.               const fitEnable = CHAT_MENU_REFIT_ALONG_SCROLLING === 2;
  8074.  
  8075.               Object.defineProperties(this, {
  8076.                 autoFitOnAttach: {
  8077.                   get() {
  8078.                     if (fitEnable && this._modifiedMenuPropOn062__) return true;
  8079.                     return autoFitOnAttach;
  8080.                   },
  8081.                   set(nv) {
  8082.                     autoFitOnAttach = nv;
  8083.                     return true;
  8084.                   },
  8085.                   enumerable: true,
  8086.                   configurable: true
  8087.                 }, expandSizingTargetForScrollbars: {
  8088.                   get() {
  8089.                     if (fitEnable && this._modifiedMenuPropOn062__) return true;
  8090.                     return expandSizingTargetForScrollbars;
  8091.                   },
  8092.                   set(nv) {
  8093.                     expandSizingTargetForScrollbars = nv;
  8094.                     return true;
  8095.                   },
  8096.                   enumerable: true,
  8097.                   configurable: true
  8098.                 }, allowOutsideScroll: {
  8099.                   get() {
  8100.                     if (this._modifiedMenuPropOn062__) return true;
  8101.                     return allowOutsideScroll;
  8102.                   },
  8103.                   set(nv) {
  8104.                     allowOutsideScroll = nv;
  8105.                     this.__AllowOutsideScrollPD__.set.call(this, nv);
  8106.                     return true;
  8107.                   },
  8108.                   enumerable: true,
  8109.                   configurable: true
  8110.                 }
  8111.               })
  8112.             };
  8113.  
  8114.             /*
  8115.                // ***** position() to be changed. *****
  8116.               tp-yt-iron-dropdown[class], tp-yt-iron-dropdown[class] #contentWrapper, tp-yt-iron-dropdown[class] ytd-menu-popup-renderer[class] {
  8117.  
  8118.                   overflow: visible !important;
  8119.                   min-width: max-content !important;
  8120.                   max-width: max-content !important;
  8121.                   max-height: max-content !important;
  8122.                   min-height: max-content !important;
  8123.                   white-space: nowrap;
  8124.               }
  8125.  
  8126.             */
  8127.             if (FIX_MENU_POSITION_N_SIZING_ON_SHOWN && typeof cProto.position === 'function' && !cProto.position34 && typeof cProto.refit === 'function') {
  8128.  
  8129.               let m34 = 0;
  8130.               cProto.__refitByPosition__ = function () {
  8131.                 m34++;
  8132.                 if (m34 <= 0) m34 = 0;
  8133.                 if (m34 !== 1) return;
  8134.                 const hostElement = this.hostElement || this;
  8135.                 if (document.visibilityState === 'visible') {
  8136.                   const sizingTarget = this.sizingTarget;
  8137.                   if (!sizingTarget) {
  8138.                     m34 = 0;
  8139.                     return;
  8140.                   }
  8141.  
  8142.                   /*
  8143.                   let useVisibilityCollapse = true;
  8144.                   if (HTMLElement.prototype.querySelector.call(sizingTarget, 'yt-icon:empty')) {
  8145.                     useVisibilityCollapse = false;
  8146.                   }
  8147.  
  8148.                   if (useVisibilityCollapse) {
  8149.                     hostElement.style.visibility = 'collapse';
  8150.                     sizingTarget.style.visibility = 'collapse';
  8151.                   } else {
  8152.                     hostElement.setAttribute('rNgzQ', '');
  8153.                     sizingTarget.setAttribute('rNgzQ', '');
  8154.                   }
  8155.                   */
  8156.                   hostElement.setAttribute('rNgzQ', '');
  8157.                   sizingTarget.setAttribute('rNgzQ', '');
  8158.  
  8159.                   const gn = () => {
  8160.                     /*
  8161.                     if (useVisibilityCollapse) {
  8162.                       hostElement.style.visibility = '';
  8163.                       sizingTarget.style.visibility = '';
  8164.                     } else {
  8165.                       hostElement.removeAttribute('rNgzQ');
  8166.                       sizingTarget.removeAttribute('rNgzQ');
  8167.                     }
  8168.                     */
  8169.                     hostElement.removeAttribute('rNgzQ');
  8170.                     sizingTarget.removeAttribute('rNgzQ');
  8171.                   }
  8172.  
  8173.                   const an = async () => {
  8174.                     while (m34 >= 1) {
  8175.                       await renderReadyPn(sizingTarget);
  8176.                       if (this.opened && this.isAttached && sizingTarget.isConnected === true && sizingTarget === this.sizingTarget) {
  8177.                         if (sizingTarget.matches('ytd-menu-popup-renderer[slot="dropdown-content"].yt-live-chat-app')) this.refit();
  8178.                       }
  8179.                       m34--;
  8180.                     }
  8181.                     m34 = 0;
  8182.                     Promise.resolve().then(gn);
  8183.                   }
  8184.                   setTimeout(an, 4); // wait those resizing function calls
  8185.  
  8186.  
  8187.                 } else {
  8188.                   m34 = 0;
  8189.                 }
  8190.               }
  8191.               cProto.position34 = cProto.position
  8192.               cProto.position = function () {
  8193.                 if (this._positionInitialize_) {
  8194.                   this._positionInitialize_ = 0;
  8195.                   this.__refitByPosition__();
  8196.                 }
  8197.                 let r = cProto.position34.apply(this, arguments);
  8198.                 return r;
  8199.               }
  8200.               console.log("FIX_MENU_POSITION_ON_SHOWN - OK");
  8201.  
  8202.             } else {
  8203.  
  8204.               console.log("FIX_MENU_POSITION_ON_SHOWN - NG");
  8205.  
  8206.             }
  8207.  
  8208.  
  8209.  
  8210.             cProto.__openedChanged = function () {
  8211.               this._positionInitialize_ = 1;
  8212.               // this.removeAttribute('horizontal-align')
  8213.               // this.removeAttribute('vertical-align')
  8214.               if (typeof this.__menuTypeCheck__ !== 'boolean') {
  8215.                 this.__menuTypeCheck__ = true;
  8216.                 if (CHAT_MENU_SCROLL_UNLOCKING) {
  8217.                   this._modifiedMenuPropOn062__ = false;
  8218.                   // console.log(513, this.positionTarget && this.positionTarget.classList.contains('yt-live-chat-text-message-renderer'))
  8219.                   // this.autoFitOnAttach = true;
  8220.                   // this.expandSizingTargetForScrollbars = true;
  8221.                   // this.allowOutsideScroll = true;
  8222.                   // console.log(519,Object.getOwnPropertyDescriptors(this.constructor.prototype))
  8223.                   this.__modifiedMenuPropsFn__();
  8224.                   // this.constrain= function(){}
  8225.                   // this.position= function(){}
  8226.  
  8227.                   // this.autoFitOnAttach = true;
  8228.                   // this.expandSizingTargetForScrollbars = true;
  8229.                   // this.allowOutsideScroll = true;
  8230.                 }
  8231.               }
  8232.               if (CHAT_MENU_SCROLL_UNLOCKING && this.opened) {
  8233.                 let newValue = null;
  8234.                 const positionTarget = this.positionTarget;
  8235.                 if (positionTarget && positionTarget.classList.contains('yt-live-chat-text-message-renderer')) {
  8236.                   if (this._modifiedMenuPropOn062__ === false) {
  8237.                     newValue = true;
  8238.                   }
  8239.                 } else if (this._modifiedMenuPropOn062__ === true) {
  8240.                   newValue = false;
  8241.                 }
  8242.                 if (newValue !== null) {
  8243.                   const beforeAllowOutsideScroll = this.allowOutsideScroll;
  8244.                   this._modifiedMenuPropOn062__ = newValue;
  8245.                   const afterAllowOutsideScroll = this.allowOutsideScroll;
  8246.                   if (beforeAllowOutsideScroll !== afterAllowOutsideScroll) this.__AllowOutsideScrollPD__.set.call(this, afterAllowOutsideScroll);
  8247.                 }
  8248.               }
  8249.  
  8250.               if (this.opened) {
  8251.  
  8252.                 Promise.resolve().then(() => {
  8253.  
  8254.                   this._prepareRenderOpened();
  8255.                 }).then(() => {
  8256.                   this._manager.addOverlay(this);
  8257.                   if (this._manager._overlays.length === 1) {
  8258.                     lastOpen = this;
  8259.                     lastClose = null;
  8260.                   } else {
  8261.                     return 1;
  8262.                   }
  8263.                   // if (cid) {
  8264.                   //   clearTimeout(cid);
  8265.                   //   cid = -1;
  8266.                   //   this.__moChanged__();
  8267.                   //   cid = 0;
  8268.                   // } else {
  8269.                   //   cid = -1;
  8270.                   //   this.__moChanged__();
  8271.                   //   cid = 0;
  8272.                   // }
  8273.                   // cid = cid > 0 ? clearTimeout(cid) : 0;
  8274.                   // console.log(580, this.positionTarget && this.positionTarget.classList.contains('yt-live-chat-text-message-renderer'))
  8275.                   // cid = cid || setTimeout(__moChanged__, delay1);
  8276.                   cid = cid || requestAnimationFrame(__moChanged__);
  8277.                 }).then((r) => {
  8278.  
  8279.                   if (r) this.__mtChanged__(1);
  8280.                 }).catch(console.warn);
  8281.  
  8282.               } else {
  8283.                 Promise.resolve().then(() => {
  8284.                   this._manager.removeOverlay(this);
  8285.                   if (this._manager._overlays.length === 0) {
  8286.                     lastClose = this;
  8287.                     lastOpen = null;
  8288.                   } else {
  8289.                     return 1;
  8290.                   }
  8291.                   // cid = cid > 0 ? clearTimeout(cid) : 0;
  8292.                   // console.log(581, this.positionTarget && this.positionTarget.classList.contains('yt-live-chat-text-message-renderer'))
  8293.                   // cid = cid || setTimeout(__moChanged__, delay1);
  8294.                   cid = cid || requestAnimationFrame(__moChanged__);
  8295.                 }).then((r) => {
  8296.                   if (r) this.__mtChanged__(0);
  8297.                 }).catch(console.warn);
  8298.  
  8299.               }
  8300.  
  8301.             }
  8302.             console.log("BOOST_MENU_OPENCHANGED_RENDERING - OK");
  8303.  
  8304.           } else {
  8305.  
  8306.             assertor(() => fnIntegrity(cProto.__openedChanged, '0.46.20'));
  8307.             console.log("FIX_MENU_REOPEN_RENDER_PERFORMANC_1 - NG");
  8308.  
  8309.           }
  8310.  
  8311.  
  8312.           if (FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK && typeof cProto.__openedChanged === 'function' && !cProto.__openedChanged82) {
  8313.  
  8314.             cProto.__openedChanged82 = cProto.__openedChanged;
  8315.  
  8316.  
  8317.             cProto.__openedChanged = function () {
  8318.  
  8319.               // currentMenuPivotWR = null;
  8320.               // console.log(1480, '__openedChanged.A', this.positionTarget)
  8321.  
  8322.  
  8323.  
  8324.               // if (this.opened && this.positionTarget) {
  8325.  
  8326.               //   const positionTarget = this.positionTarget;
  8327.               //   console.log(1480, '__openedChanged.B', positionTarget)
  8328.               //   currentMenuPivotWR = mWeakRef(positionTarget);
  8329.  
  8330.               // }
  8331.  
  8332.               const positionTarget = this.positionTarget;
  8333.               currentMenuPivotWR = positionTarget ? mWeakRef(positionTarget) : null;
  8334.               return this.__openedChanged82.apply(this, arguments);
  8335.             }
  8336.           }
  8337.  
  8338.  
  8339.           // if(FIX_MENU_CAPTURE_SCROLL && typeof cProto.__onCaptureScroll === 'function' && !cProto.__onCaptureScroll66){
  8340.  
  8341.           //   cProto.__onCaptureScroll66 = cProto.__onCaptureScroll;
  8342.  
  8343.           //   cProto.__onCaptureScroll = function(a){
  8344.  
  8345.           //     const q = true;
  8346.           //     if(this.scrollAction === 'lock'  && q && this.opened){
  8347.  
  8348.           //       // console.log(9107, this.scrollAction, this.__isAnimating, this.opened, a); // lock; __isAnimating = false
  8349.           //       async function af() {
  8350.           //         this.__isAnimating && this._finishRenderOpened();
  8351.           //         if (!this.opened) return;
  8352.           //         this.__restoreScrollPosition();
  8353.           //         await new Promise(r => requestAnimationFrame(r));
  8354.           //         if (!this.opened) return;
  8355.           //         this.opened && this.__isAnimating && this._finishRenderOpened();
  8356.           //         if (!this.opened) return;
  8357.           //         this.__restoreScrollPosition();
  8358.           //         await new Promise(r => requestAnimationFrame(r));
  8359.           //         if (!this.opened) return;
  8360.           //         this.opened && this.__isAnimating && this._finishRenderOpened();
  8361.           //         if (!this.opened) return;
  8362.           //         this.opened && !this.__isAnimating && this.refit();
  8363.           //       }
  8364.           //       Promise.resolve().then(af);
  8365.  
  8366.           //        return cProto.__onCaptureScroll66.apply(this, arguments);
  8367.           //     }else{
  8368.  
  8369.           //       // console.log(9102, this.scrollAction, this.__isAnimating, this.opened, a); // lock
  8370.  
  8371.           //       return cProto.__onCaptureScroll66.apply(this, arguments);
  8372.           //     }
  8373.           //   }
  8374.           //   console.log("FIX_MENU_CAPTURE_SCROLL - OK");
  8375.           // }else{
  8376.           //   console.log("FIX_MENU_CAPTURE_SCROLL - NG");
  8377.  
  8378.           // }
  8379.  
  8380.  
  8381.         })();
  8382.  
  8383.         console.log("[End]");
  8384.  
  8385.         console.groupEnd();
  8386.  
  8387.       }).catch(console.warn);
  8388.  
  8389.  
  8390.  
  8391.  
  8392.  
  8393.  
  8394.  
  8395.  
  8396.       /*
  8397.  
  8398.  
  8399.  
  8400.  
  8401.  
  8402.           var FU = function() {
  8403.               var a = this;
  8404.               this.nextHandle_ = 1;
  8405.               this.clients_ = {};
  8406.               this.JSC$10323_callbacks_ = {};
  8407.               this.unsubscribeAsyncHandles_ = {};
  8408.               this.subscribe = vl(function(b, c, d) {
  8409.                   var e = Geb(b);
  8410.                   if (e in a.clients_)
  8411.                       e in a.unsubscribeAsyncHandles_ && Jq.cancel(a.unsubscribeAsyncHandles_[e]);
  8412.                   else {
  8413.                       a: {
  8414.                           var h = Geb(b), l;
  8415.                           for (l in a.unsubscribeAsyncHandles_) {
  8416.                               var m = a.clients_[l];
  8417.                               if (m instanceof KO) {
  8418.                                   delete a.clients_[l];
  8419.                                   delete a.JSC$10323_callbacks_[l];
  8420.                                   Jq.cancel(a.unsubscribeAsyncHandles_[l]);
  8421.                                   delete a.unsubscribeAsyncHandles_[l];
  8422.                                   i6a(m);
  8423.                                   m.objectId_ = new FQa(h);
  8424.                                   m.register();
  8425.                                   d = m;
  8426.                                   break a
  8427.                               }
  8428.                           }
  8429.                           d.objectSource = b.invalidationId.objectSource;
  8430.                           d.objectId = h;
  8431.                           if (b = b.webAuthConfigurationData)
  8432.                               b.multiUserSessionIndex && (d.sessionIndex = parseInt(b.multiUserSessionIndex, 10)),
  8433.                               b.pageId && (d.pageId = b.pageId);
  8434.                           d = new KO(d,a.handleInvalidationData_.bind(a));
  8435.                           d.register()
  8436.                       }
  8437.                       a.clients_[e] = d;
  8438.                       a.JSC$10323_callbacks_[e] = {}
  8439.                   }
  8440.                   d = a.nextHandle_++;
  8441.                   a.JSC$10323_callbacks_[e][d] = c;
  8442.                   return d
  8443.               })
  8444.           };
  8445.           FU.prototype.unsubscribe = function(a, b) {
  8446.               var c = Geb(a);
  8447.               if (c in this.JSC$10323_callbacks_ && (delete this.JSC$10323_callbacks_[c][b],
  8448.               !this.JSC$10323_callbacks_[c].length)) {
  8449.                   var d = this.clients_[c];
  8450.                   b = Jq.run(function() {
  8451.                       ei(d);
  8452.                       delete this.clients_[c];
  8453.                       delete this.unsubscribeAsyncHandles_[c]
  8454.                   }
  8455.                   .bind(this));
  8456.                   this.unsubscribeAsyncHandles_[c] = b
  8457.               }
  8458.           }
  8459.           ;
  8460.  
  8461.  
  8462.       */
  8463.  
  8464.  
  8465.  
  8466.  
  8467.       const onManagerFound = (dummyManager) => {
  8468.         if (!dummyManager || typeof dummyManager !== 'object') return;
  8469.  
  8470.         const mgrProto = dummyManager.constructor.prototype;
  8471.  
  8472.         let keyCallbackStore = '';
  8473.         for (const [key, v] of Object.entries(dummyManager)) {
  8474.           if (key.includes('_callbacks_')) keyCallbackStore = key;
  8475.         }
  8476.  
  8477.         if (!keyCallbackStore || typeof mgrProto.unsubscribe !== 'function' || mgrProto.unsubscribe.length !== 2) return;
  8478.  
  8479.         if (mgrProto.unsubscribe16) return;
  8480.  
  8481.         mgrProto.unsubscribe16 = mgrProto.unsubscribe;
  8482.  
  8483.         groupCollapsed("YouTube Super Fast Chat", " | *live-chat-manager* hacks");
  8484.         console.log("[Begin]");
  8485.  
  8486.  
  8487.         // const isEmptyObject = (a) => Object.keys(a).length === 0;
  8488.         const isEmptyObject = ((obj) => (firstKey(obj) === null));
  8489.  
  8490.         const idMapper = new Map();
  8491.  
  8492.         const convertId = function (objectId) {
  8493.           if (!objectId || typeof objectId !== 'string') return null;
  8494.  
  8495.           let result = idMapper.get(objectId)
  8496.           if (result) return result;
  8497.           result = atob(objectId.replace(/-/g, "+").replace(/_/g, "/"));
  8498.           idMapper.set(objectId, result)
  8499.           return result;
  8500.         }
  8501.  
  8502.  
  8503.         const rafHandleHolder = [];
  8504.  
  8505.         let pzw = 0;
  8506.         let lza = 0;
  8507.         const rafHandlerFn = () => {
  8508.           pzw = 0;
  8509.           if (rafHandleHolder.length === 1) {
  8510.             const f = rafHandleHolder[0];
  8511.             rafHandleHolder.length = 0;
  8512.             f();
  8513.           } else if (rafHandleHolder.length > 1) {
  8514.             const arr = rafHandleHolder.slice(0);
  8515.             rafHandleHolder.length = 0;
  8516.             for (const fn of arr) fn();
  8517.           }
  8518.         };
  8519.  
  8520.  
  8521.         if (CHANGE_MANAGER_UNSUBSCRIBE) {
  8522.  
  8523.           const checkIntegrityForSubscribe = (mgr) => {
  8524.             if (mgr
  8525.               && typeof mgr.unsubscribe16 === 'function' && mgr.unsubscribe16.length === 2
  8526.               && typeof mgr.subscribe18 === 'function' && (mgr.subscribe18.length === 0 || mgr.subscribe18.length === 3)) {
  8527.  
  8528.               const ns = new Set(Object.keys(mgr));
  8529.               const ms = new Set(Object.keys(mgr.constructor.prototype));
  8530.  
  8531.               if (ns.size >= 6 && ms.size >= 4) {
  8532.                 // including 'subscribe18'
  8533.                 // 'unsubscribe16', 'subscribe19'
  8534.  
  8535.                 let r = 0;
  8536.                 for (const k of ['nextHandle_', 'clients_', keyCallbackStore, 'unsubscribeAsyncHandles_', 'subscribe', 'subscribe18']) {
  8537.                   r += ns.has(k) ? 1 : 0;
  8538.                 }
  8539.                 for (const k of ['unsubscribe', 'handleInvalidationData_', 'unsubscribe16', 'subscribe19']) {
  8540.                   r += ms.has(k) ? 1 : 0;
  8541.                 }
  8542.                 if (r === 10) {
  8543.                   const isObject = (c) => (c || 0).constructor === Object;
  8544.  
  8545.                   if (isObject(mgr['clients_']) && isObject(mgr[keyCallbackStore]) && isObject(mgr['unsubscribeAsyncHandles_'])) {
  8546.  
  8547.                     return true;
  8548.                   }
  8549.  
  8550.  
  8551.                 }
  8552.  
  8553.               }
  8554.  
  8555.  
  8556.             }
  8557.             return false;
  8558.           }
  8559.  
  8560.           mgrProto.subscribe19 = function (o, f, opts) {
  8561.  
  8562.             const ct_clients_ = this.clients_ || 0;
  8563.             const ct_handles_ = this.unsubscribeAsyncHandles_ || 0;
  8564.  
  8565.             if (this.__doCustomSubscribe__ !== true || !ct_clients_ || !ct_handles_) return this.subscribe18.apply(this, arguments);
  8566.  
  8567.             let objectId = ((o || 0).invalidationId || 0).objectId;
  8568.             if (!objectId) return this.subscribe18.apply(this, arguments);
  8569.             objectId = convertId(objectId);
  8570.  
  8571.             // console.log('subscribe', objectId, ct_clients_[objectId], arguments);
  8572.  
  8573.             if (ct_clients_[objectId]) {
  8574.               if (ct_handles_[objectId] < 0) delete ct_handles_[objectId];
  8575.             }
  8576.  
  8577.             return this.subscribe18.apply(this, arguments);
  8578.           }
  8579.  
  8580.           mgrProto.unsubscribe = function (o, d) {
  8581.             if (!this.subscribe18 && typeof this.subscribe === 'function') {
  8582.               this.subscribe18 = this.subscribe;
  8583.               this.subscribe = this.subscribe19;
  8584.               this.__doCustomSubscribe__ = checkIntegrityForSubscribe(this);
  8585.             }
  8586.             const ct_clients_ = this.clients_;
  8587.             const ct_handles_ = this.unsubscribeAsyncHandles_;
  8588.             if (this.__doCustomSubscribe__ !== true || !ct_clients_ || !ct_handles_) return this.unsubscribe16.apply(this, arguments);
  8589.  
  8590.             let objectId = ((o || 0).invalidationId || 0).objectId;
  8591.             if (!objectId) return this.unsubscribe16.apply(this, arguments);
  8592.  
  8593.             objectId = convertId(objectId);
  8594.  
  8595.  
  8596.             // console.log('unsubscribe', objectId, ct_clients_[objectId], arguments);
  8597.  
  8598.             const callbacks = this[keyCallbackStore] || 0;
  8599.             const callbackObj = callbacks[objectId] || 0;
  8600.  
  8601.  
  8602.             if (callbackObj && (delete callbackObj[d], isEmptyObject(callbackObj))) {
  8603.               const w = ct_clients_[objectId];
  8604.               --lza;
  8605.               if (lza < -1e9) lza = -1;
  8606.               const qta = lza;
  8607.               rafHandleHolder.push(() => {
  8608.                 if (qta === ct_handles_[objectId]) {
  8609.                   const o = {
  8610.                     callbacks, callbackObj,
  8611.                     client: ct_clients_[objectId],
  8612.                     handle: ct_handles_[objectId]
  8613.                   };
  8614.                   let p = 0;
  8615.                   try {
  8616.                     if (ct_clients_[objectId] === w) {
  8617.                       w && "function" === typeof w.dispose && w.dispose();
  8618.                       delete ct_clients_[objectId];
  8619.                       delete ct_handles_[objectId];
  8620.                       p = 1;
  8621.                     } else {
  8622.                       // w && "function" === typeof w.dispose && w.dispose();
  8623.                       // delete ct_clients_[objectId];
  8624.                       // delete ct_handles_[objectId];
  8625.                       p = 2;
  8626.                     }
  8627.                   } catch (e) {
  8628.                     console.warn(e);
  8629.                   }
  8630.                   console.log(`unsubscribed: ${p}`, this, o);
  8631.                 }
  8632.               });
  8633.               ct_handles_[objectId] = qta;
  8634.               if (pzw === 0) {
  8635.                 pzw = requestAnimationFrame(rafHandlerFn);
  8636.               }
  8637.             }
  8638.           }
  8639.  
  8640.  
  8641.           console.log("CHANGE_MANAGER_UNSUBSCRIBE - OK")
  8642.  
  8643.         } else {
  8644.  
  8645.           console.log("CHANGE_MANAGER_UNSUBSCRIBE - NG")
  8646.         }
  8647.  
  8648.         console.log("[End]");
  8649.  
  8650.         console.groupEnd();
  8651.  
  8652.       }
  8653.  
  8654.  
  8655.  
  8656.       /*
  8657.  
  8658.  
  8659.               a.prototype.async = function(e, h) {
  8660.                   return 0 < h ? Iq.run(e.bind(this), h) : ~Kq.run(e.bind(this))
  8661.               }
  8662.               ;
  8663.               a.prototype.cancelAsync = function(e) {
  8664.                   0 > e ? Kq.cancel(~e) : Iq.cancel(e)
  8665.               }
  8666.  
  8667.       */
  8668.  
  8669.  
  8670.       (FASTER_ICON_RENDERING && Promise.all(
  8671.         [
  8672.           customElements.whenDefined("yt-icon-shape"),
  8673.           customElements.whenDefined("yt-icon")
  8674.           //  document.createElement('icon-shape'),
  8675.         ]
  8676.       )).then(() => {
  8677.         let cq = 0;
  8678.         let dummys = [document.createElement('yt-icon-shape'), document.createElement('yt-icon')]
  8679.         for (const dummy of dummys) {
  8680.           let cProto = getProto(dummy);
  8681.           if (cProto && typeof cProto.shouldRenderIconShape === 'function' && !cProto.shouldRenderIconShape571 && cProto.shouldRenderIconShape.length === 1) {
  8682.             assertor(() => fnIntegrity(cProto.shouldRenderIconShape, '1.70.38'));
  8683.             cq++;
  8684.             cProto.shouldRenderIconShape571 = cProto.shouldRenderIconShape;
  8685.             cProto.shouldRenderIconShape = function (a) {
  8686.               if (this.isAnimatedIcon) return this.shouldRenderIconShape571(a);
  8687.               if (!this.iconType || !this.iconShapeData) return this.shouldRenderIconShape571(a);
  8688.               if (!this.iconName) return this.shouldRenderIconShape571(a);
  8689.               return false;
  8690.               // console.log(1051, this.iconType)
  8691.               // console.log(1052, this.iconShapeData)
  8692.               // console.log(1053, this.isAnimatedIcon)
  8693.             }
  8694.           }
  8695.           // if(cProto && cProto.switchTemplateAtRegistration){
  8696.           //   cProto.switchTemplateAtRegistration = false;
  8697.           // }
  8698.         }
  8699.         if (cq === 1) {
  8700.           console.log("modified shouldRenderIconShape - Y")
  8701.         } else {
  8702.           console.log("modified shouldRenderIconShape - N", cq)
  8703.         }
  8704.       });
  8705.  
  8706.       customElements.whenDefined("yt-invalidation-continuation").then(() => {
  8707.  
  8708.         let __dummyManager__ = null;
  8709.  
  8710.         mightFirstCheckOnYtInit();
  8711.         groupCollapsed("YouTube Super Fast Chat", " | yt-invalidation-continuation hacks");
  8712.         console.log("[Begin]");
  8713.         (() => {
  8714.  
  8715.           const tag = "yt-invalidation-continuation"
  8716.           const dummy = document.createElement(tag);
  8717.  
  8718.           const cProto = getProto(dummy);
  8719.           if (!cProto || !cProto.attached) {
  8720.             console.warn(`proto.attached for ${tag} is unavailable.`);
  8721.             return;
  8722.           }
  8723.  
  8724.           const dummyManager = insp(dummy).manager_ || 0;
  8725.           __dummyManager__ = dummyManager;
  8726.  
  8727.           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) {
  8728.  
  8729.  
  8730.             const rafHub = new RAFHub();
  8731.  
  8732.             rafHub.keepRAF = true;
  8733.             cProto.async71 = cProto.async;
  8734.             cProto.cancelAsync71 = cProto.cancelAsync;
  8735.  
  8736.             // mostly for subscription timeoutMs 10000ms
  8737.             let mcw = 1; // 1, 3, 5, ...
  8738.             let arr = new Map();
  8739.  
  8740.             let __asyncInited__ = 0;
  8741.             let __timeoutStartId__ = null;
  8742.             const __asyncInit__ = () => {
  8743.  
  8744.               if (__asyncInited__) return;
  8745.               __asyncInited__ = 1;
  8746.  
  8747.               __timeoutStartId__ = setTimeout(() => { });
  8748.               mcw = __timeoutStartId__ * 2 + 1;
  8749.  
  8750.               setInterval(() => {
  8751.  
  8752.                 if (!arr.length) return;
  8753.  
  8754.                 const p = Date.now();
  8755.                 let deleteKeys = [];
  8756.                 arr.forEach((entry, key) => {
  8757.  
  8758.  
  8759.                   if (entry.cid === -1) {
  8760.                     entry.cid = -2;
  8761.                   } else if (entry.cid === -2) {
  8762.  
  8763.                     let offset = p - entry.add
  8764.                     if (offset < 0) offset = 0;
  8765.                     let delay2 = entry.delay - offset;
  8766.                     if (delay2 < 0) delay2 = 0;
  8767.                     entry.cid = setTimeout(entry.q(), delay2);
  8768.                     entry.q = null;
  8769.  
  8770.                   } else if (entry.add + entry.delay < p) {
  8771.                     deleteKeys.push(key);
  8772.  
  8773.                   }
  8774.  
  8775.                 })
  8776.  
  8777.                 for (const key of deleteKeys) arr.delete(key);
  8778.  
  8779.               }, 2000)
  8780.  
  8781.             }
  8782.  
  8783.  
  8784.  
  8785.  
  8786.             cProto.async = function (e, h) {
  8787.  
  8788.               if (!(0 < h)) return this.async71(e, h); // unknown timing Fn
  8789.  
  8790.               if (h < 8000) return this.async71(e, h) * 2; // native setTimeout
  8791.  
  8792.               if (typeof h !== 'number') return this.async71(e, h); // exceptional case
  8793.  
  8794.  
  8795.               if (!this.__asyncInited__) {
  8796.                 this.__asyncInited__ = 1;
  8797.                 __asyncInit__();
  8798.               }
  8799.               mcw += 2; // 2K+3, 2K+4, ...
  8800.               if (mcw > 1e9) mcw = mcw % 1e4;
  8801.               const cid = mcw;
  8802.               const q = () => {
  8803.                 return () => {
  8804.                   console.log('async h > 8000');
  8805.                   e.call(this);
  8806.                 }
  8807.               }
  8808.               // setTimeout(q, delay)
  8809.               arr.set(cid, {
  8810.                 cid: -1, // -1 -> -2 -> cid
  8811.                 add: Date.now(),
  8812.                 q,
  8813.                 delay: h
  8814.               });
  8815.               // console.log('cid-async', cid)
  8816.               return cid;
  8817.  
  8818.             }
  8819.  
  8820.  
  8821.             cProto.cancelAsync = function (e) {
  8822.  
  8823.               if (typeof e !== 'number') return this.cancelAsync71(e); // exceptional case
  8824.  
  8825.               // console.log('cid-unasync', e)
  8826.  
  8827.               if (0 > e) return this.cancelAsync71(e); // unknown timing fn
  8828.  
  8829.               if (e > __timeoutStartId__ * 2) { // __timeoutStartId__ is recorded and min is 2K+1
  8830.  
  8831.                 if ((e % 2) === 0) return this.cancelAsync71(e / 2); // 2(K+1), 2(K+2), ...
  8832.  
  8833.                 if (!arr.has(e)) return; // duplciated cancel
  8834.  
  8835.                 const entry = arr.get(e);
  8836.                 if (entry.cid < 0) {
  8837.                   entry.cid = 0;
  8838.                   arr.delete(e);
  8839.                 } else {
  8840.                   clearTimeout(entry.cid); // cid >= 1
  8841.                   entry.cid = 0;
  8842.                   arr.delete(e);
  8843.                 }
  8844.  
  8845.               } else {
  8846.  
  8847.                 return this.cancelAsync71(e);
  8848.  
  8849.               }
  8850.  
  8851.             }
  8852.  
  8853.             console.log("CHANGE_DATA_FLUSH_ASYNC - OK");
  8854.  
  8855.           } else {
  8856.             console.log("CHANGE_DATA_FLUSH_ASYNC - NOT REQUIRED");
  8857.  
  8858.           }
  8859.  
  8860.         })();
  8861.  
  8862.         console.log("[End]");
  8863.  
  8864.         console.groupEnd();
  8865.  
  8866.  
  8867.  
  8868.         onManagerFound(__dummyManager__);
  8869.  
  8870.       }).catch(console.warn);
  8871.  
  8872.  
  8873.  
  8874.  
  8875.       if (INTERACTIVITY_BACKGROUND_ANIMATION >= 1) {
  8876.  
  8877.  
  8878.         customElements.whenDefined("yt-live-interactivity-component-background").then(() => {
  8879.  
  8880.  
  8881.           mightFirstCheckOnYtInit();
  8882.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-interactivity-component-background hacks");
  8883.           console.log("[Begin]");
  8884.           (() => {
  8885.  
  8886.             const tag = "yt-live-interactivity-component-background"
  8887.             const dummy = document.createElement(tag);
  8888.  
  8889.             const cProto = getProto(dummy);
  8890.             if (!cProto || !cProto.attached) {
  8891.               console.warn(`proto.attached for ${tag} is unavailable.`);
  8892.               return;
  8893.             }
  8894.  
  8895.  
  8896.             cProto.__toStopAfterRun__ = function (hostElement) {
  8897.               let mo = new MutationObserver(() => {
  8898.                 mo.disconnect();
  8899.                 mo.takeRecords();
  8900.                 mo = null;
  8901.                 this.lottieAnimation && this.lottieAnimation.stop(); // primary
  8902.                 foregroundPromiseFn().then(() => { // if the lottieAnimation is started with rAf triggering
  8903.                   this.lottieAnimation && this.lottieAnimation.stop(); // fallback
  8904.                 });
  8905.               });
  8906.               mo.observe(hostElement, { subtree: true, childList: true });
  8907.             }
  8908.  
  8909.             if (INTERACTIVITY_BACKGROUND_ANIMATION >= 1 && typeof cProto.maybeLoadAnimationBackground === 'function' && !cProto.maybeLoadAnimationBackground77 && cProto.maybeLoadAnimationBackground.length === 0) {
  8910.  
  8911.               cProto.maybeLoadAnimationBackground77 = cProto.maybeLoadAnimationBackground;
  8912.               cProto.maybeLoadAnimationBackground = function () {
  8913.                 let toRun = true;
  8914.                 let stopAfterRun = false;
  8915.                 if (!this.__bypassDisableAnimationBackground__) {
  8916.                   let doFix = false;
  8917.                   if (INTERACTIVITY_BACKGROUND_ANIMATION === 1) {
  8918.                     if (!this.lottieAnimation) {
  8919.                       doFix = true;
  8920.                     }
  8921.                   } else if (INTERACTIVITY_BACKGROUND_ANIMATION === 2) {
  8922.                     doFix = true;
  8923.                   }
  8924.                   if (doFix) {
  8925.                     if (this.useAnimationBackground === true) {
  8926.                       console.log('DISABLE_INTERACTIVITY_BACKGROUND_ANIMATION', this.lottieAnimation);
  8927.                     }
  8928.                     toRun = true;
  8929.                     stopAfterRun = true;
  8930.                   }
  8931.                 }
  8932.                 if (toRun) {
  8933.                   if (stopAfterRun && (this.hostElement instanceof HTMLElement)) {
  8934.                     this.__toStopAfterRun__(this.hostElement); // primary
  8935.                   }
  8936.                   const r = this.maybeLoadAnimationBackground77.apply(this, arguments);
  8937.                   if (stopAfterRun && this.lottieAnimation) {
  8938.                     this.lottieAnimation.stop(); // fallback if no mutation
  8939.                   }
  8940.                   return r;
  8941.                 }
  8942.               }
  8943.  
  8944.               console.log(`INTERACTIVITY_BACKGROUND_ANIMATION${INTERACTIVITY_BACKGROUND_ANIMATION} - OK`);
  8945.  
  8946.             } else {
  8947.               console.log(`INTERACTIVITY_BACKGROUND_ANIMATION${INTERACTIVITY_BACKGROUND_ANIMATION} - NG`);
  8948.  
  8949.             }
  8950.  
  8951.           })();
  8952.  
  8953.           console.log("[End]");
  8954.  
  8955.           console.groupEnd();
  8956.  
  8957.  
  8958.         }).catch(console.warn);
  8959.  
  8960.       }
  8961.  
  8962.  
  8963.       if (DELAY_FOCUSEDCHANGED) {
  8964.  
  8965.         customElements.whenDefined("yt-live-chat-text-input-field-renderer").then(() => {
  8966.  
  8967.  
  8968.           mightFirstCheckOnYtInit();
  8969.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-text-input-field-renderer hacks");
  8970.           console.log("[Begin]");
  8971.           (() => {
  8972.  
  8973.             const tag = "yt-live-chat-text-input-field-renderer"
  8974.             const dummy = document.createElement(tag);
  8975.  
  8976.             const cProto = getProto(dummy);
  8977.             if (!cProto || !cProto.attached) {
  8978.               console.warn(`proto.attached for ${tag} is unavailable.`);
  8979.               return;
  8980.             }
  8981.  
  8982.             if (DELAY_FOCUSEDCHANGED && typeof cProto.focusedChanged === 'function' && cProto.focusedChanged.length === 0 && !cProto.focusedChanged372) {
  8983.               cProto.focusedChanged372 = cProto.focusedChanged;
  8984.               cProto.focusedChanged = function () {
  8985.                 Promise.resolve().then(() => {
  8986.                   if (this.isAttached === true) this.focusedChanged372();
  8987.                 });
  8988.               }
  8989.             }
  8990.  
  8991.           })();
  8992.  
  8993.           console.log("[End]");
  8994.  
  8995.           console.groupEnd();
  8996.  
  8997.         });
  8998.  
  8999.       }
  9000.  
  9001.  
  9002.     }
  9003.  
  9004.  
  9005.  
  9006.  
  9007.     promiseForCustomYtElementsReady.then(onRegistryReadyForDOMOperations);
  9008.  
  9009.     const fixJsonParse = () => {
  9010.  
  9011.       let p1 = window.onerror;
  9012.  
  9013.       try {
  9014.         JSON.parse("{}");
  9015.       } catch (e) {
  9016.         console.warn(e);
  9017.       }
  9018.  
  9019.       let p2 = window.onerror;
  9020.  
  9021.       if (p1 !== p2) {
  9022.  
  9023.  
  9024.         console.groupCollapsed(`%c${"YouTube Super Fast Chat"}%c${" | JS Engine Issue Found"}`,
  9025.           "background-color: #010502; color: #fe806a; font-weight: 700; padding: 2px;",
  9026.           "background-color: #010502; color: #fe806a; font-weight: 300; padding: 2px;"
  9027.         );
  9028.  
  9029.         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");
  9030.  
  9031.         console.groupEnd();
  9032.  
  9033.       }
  9034.  
  9035.     }
  9036.  
  9037.     if (CHECK_JSONPRUNE) {
  9038.       promiseForCustomYtElementsReady.then(fixJsonParse);
  9039.     }
  9040.  
  9041.   });
  9042.  
  9043.  
  9044.  
  9045. })({ IntersectionObserver });