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YouTube 超快聊天

YouTube直播聊天的終極性能提升

目前為 2024-02-23 提交的版本，檢視 最新版本。

  1. // ==UserScript==
  2. // @name                YouTube Super Fast Chat
  3. // @version             0.60.44
  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.gf.qytechs.cn/scripts/475632/1252746/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.   // images <Group#I01>
  92.   const AUTHOR_PHOTO_SINGLE_THUMBNAIL = 1;  // 0 - disable; 1- smallest; 2- largest
  93.   const EMOJI_IMAGE_SINGLE_THUMBNAIL = 1;   // 0 - disable; 1- smallest; 2- largest
  94.   const LEAST_IMAGE_SIZE = 48;              // minium size = 48px
  95.  
  96.   const DO_LINK_PREFETCH = true;                      // DO NOT CHANGE
  97.   // << if DO_LINK_PREFETCH >>
  98.   const ENABLE_BASE_PREFETCHING = true;               // (SUB-)DOMAIN | dns-prefetch & preconnect
  99.   const ENABLE_PRELOAD_THUMBNAIL = true;              // subresource (prefetch) [LINK for Images]
  100.   const PREFETCH_LIMITED_SIZE_EMOJI = 512;            // DO NOT CHANGE THIS
  101.   const PREFETCH_LIMITED_SIZE_AUTHOR_PHOTO = 68;      // DO NOT CHANGE THIS
  102.   // << end >>
  103.  
  104.   const FIX_SETSRC_AND_THUMBNAILCHANGE_ = true;       // Function Replacement for yt-img-shadow....
  105.   const FIX_THUMBNAIL_DATACHANGED = true;             // Function Replacement for yt-live-chat-author-badge-renderer..dataChanged
  106.   // const REMOVE_PRELOADAVATARFORADDACTION = false;      // Function Replacement for yt-live-chat-renderer..preloadAvatarForAddAction
  107.  
  108.   const FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION = true;     // important [depends on <Group#I01>]
  109.   const FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT = true;  // [depends on <Group#I01>]
  110.  
  111.   const ATTEMPT_ANIMATED_TICKER_BACKGROUND = 'steps'   // false OR '' for disabled, 'linear', 'steps' for easing-function
  112.   // << if ATTEMPT_ANIMATED_TICKER_BACKGROUND >>
  113.   // BROWSER SUPPORT: Chrome 75+, Edge 79+, Safari 13.1+, Firefox 63+, Opera 62+
  114.   const TICKER_MAX_STEPS_LIMIT = 500;                       //  NOT LESS THAN 5 STEPS!!
  115.   // [limiting 500 max steps] is recommended for "confortable visual change"
  116.   //      min. step increment 0.2% => max steps: 500 =>  800ms per each update
  117.   //      min. step increment 0.5% => max steps: 200 => 1000ms per each update
  118.   //      min. step increment 1.0% => max steps: 100 => 1000ms per each update
  119.   //      min. step increment 2.5% => max steps:  40 => 1000ms per each update
  120.   //      min. step increment 5.0% => max steps:  20 => 1250ms per each update
  121.   const ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX = true;    // for video playback's ticker issue. [ Playback Replay - Pause at Middle - Backwards Seeking ]
  122.   // << end >>
  123.  
  124.   const FIX_TOOLTIP_DISPLAY = true;
  125.   const USE_VANILLA_DEREF = true;
  126.   const FIX_DROPDOWN_DERAF = true;                        // DONT CHANGE
  127.  
  128.  
  129.   const CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN = true;                // cache the menu data and used for the next reopen
  130.   const ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU = true;   // pause auto scroll faster when the context menu is about to show
  131.   const ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU = true;                // avoid multiple requests on the same time
  132.  
  133.   const BOOST_MENU_OPENCHANGED_RENDERING = true;
  134.   const FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK = true;  // click again = close
  135.   const NO_ITEM_TAP_FOR_NON_STATIONARY_TAP = true;                // dont open the menu (e.g. text message) if cursor is moved or long press
  136.   const TAP_ACTION_DURATION = 280;                                // exceeding 280ms would not consider as a tap action
  137.   const PREREQUEST_CONTEXT_MENU_ON_MOUSE_DOWN = true;             // require CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN = true
  138.   // const FIX_MENU_CAPTURE_SCROLL = true;
  139.   const CHAT_MENU_REFIT_ALONG_SCROLLING = 0;                      // 0 for locking / default; 1 for unlocking only; 2 for unlocking and refit
  140.  
  141.   const RAF_FIX_keepScrollClamped = true;
  142.   const RAF_FIX_scrollIncrementally = 2;                          // 0: no action; 1: basic fix; 2: also fix scroll position
  143.  
  144.   // << if BOOST_MENU_OPENCHANGED_RENDERING >>
  145.   const FIX_MENU_POSITION_N_SIZING_ON_SHOWN = 1;       // correct size and position when the menu dropdown opens
  146.  
  147.   const CHECK_JSONPRUNE = true;                        // This is a bug in Brave
  148.   // << end >>
  149.  
  150.   // const LIVE_CHAT_FLUSH_ON_FOREGROUND_ONLY = false;
  151.  
  152.   const CHANGE_DATA_FLUSH_ASYNC = false;
  153.   // CHANGE_DATA_FLUSH_ASYNC is disabled due to bug report: https://gf.qytechs.cn/scripts/469878-youtube-super-fast-chat/discussions/199479
  154.   // to be further investigated
  155.  
  156.   const CHANGE_MANAGER_UNSUBSCRIBE = true;
  157.  
  158.   const INTERACTIVITY_BACKGROUND_ANIMATION = 1;         // mostly for pinned message
  159.   // 0 = default Yt animation background [= no fix];
  160.   // 1 = disable default animation background [= keep special animation];
  161.   // 2 = disable all animation backgrounds [= no animation backbround]
  162.  
  163.   const CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED = true;
  164.  
  165.   const MAX_TOOLTIP_NO_WRAP_WIDTH = '72vw'; // '' for disable; accept values like '60px', '25vw'
  166.  
  167.   const AMEND_TICKER_handleLiveChatAction = true; // to fix ticker duplication and unresponsively fast ticker generation
  168.  
  169.   const ATTEMPT_TICKER_ANIMATION_START_TIME_DETECTION = true;
  170.   const ADJUST_TICKER_DURATION_ALIGN_RENDER_TIME = true;
  171.   const FIX_BATCH_TICKER_ORDER = true;
  172.  
  173.   const DISABLE_Translation_By_Google = true;
  174.  
  175.   const FASTER_ICON_RENDERING = true;
  176.  
  177.   const DELAY_FOCUSEDCHANGED = true;
  178.  
  179.   const skipErrorForhandleAddChatItemAction_ = true; // currently depends on ENABLE_NO_SMOOTH_TRANSFORM
  180.   const fixChildrenIssue801 = true; // if __children801__ is set [fix polymer controller method extration for `.set()`]
  181.  
  182.   const SUPPRESS_refreshOffsetContainerHeight_ = true; // added in FEB 2024; true for default layout options
  183.  
  184.   // ========= EXPLANTION FOR 0.2% @ step timing [min. 0.2%] ===========
  185.   /*
  186.  
  187.     ### Time Approach
  188.  
  189.     // all below values can make the time interval > 250ms
  190.     // 250ms (practical value) refers to the minimum frequency for timeupdate in most browsers (typically, shorter timeupdate interval in modern browsers)
  191.     if (totalDuration > 400000) stepInterval = 0.2;  // 400000ms with 0.2% increment => 800ms
  192.     else if (totalDuration > 200000) stepInterval = 0.5; // 200000ms with 0.5% increment => 1000ms
  193.     else if (totalDuration > 100000) stepInterval = 1; // 100000ms with 1% increment => 1000ms
  194.     else if (totalDuration > 50000) stepInterval = 2; // 50000ms with 2% increment => 1000ms
  195.     else if (totalDuration > 25000) stepInterval = 5; // 25000ms with 5% increment => 1250ms
  196.  
  197.     ### Pixel Check
  198.     // Target Max Pixel Increment < 5px for Short Period Ticker (Rapid Background Change)
  199.     // Assume total width <= 99px for short period ticker, like small donation & member welcome
  200.     99px * 5% = 4.95px < 5px [Condition Fulfilled]
  201.  
  202.     ### Example - totalDuration = 280000
  203.     totalDuration 280000
  204.     stepInterval 0.5
  205.     numOfSteps = Math.round(100 / stepInterval) = 200
  206.     time interval = 280000 / 200 = 1400ms <acceptable>
  207.  
  208.     ### Example - totalDuration = 18000
  209.     totalDuration 18000
  210.     stepInterval 5
  211.     numOfSteps = Math.round(100 / stepInterval) = 20
  212.     time interval = 18000 / 20 = 900ms <acceptable>
  213.  
  214.     ### Example - totalDuration = 5000
  215.     totalDuration 5000
  216.     stepInterval 5
  217.     numOfSteps = Math.round(100 / stepInterval) = 20
  218.     time interval = 5000 / 20 = 250ms <threshold value>
  219.  
  220.     ### Example - totalDuration = 3600
  221.     totalDuration 3600
  222.     stepInterval 5
  223.     numOfSteps = Math.round(100 / stepInterval) = 20
  224.     time interval = 3600 / 20 = 180ms <reasonable for 3600ms ticker>
  225.  
  226.   */
  227.  
  228.   // =======================================================================================================
  229.  
  230.   // AUTOMAICALLY DETERMINED
  231.   const ENABLE_FLAGS_MAINTAIN_STABLE_LIST = ENABLE_FLAGS_MAINTAIN_STABLE_LIST_VAL === 1;
  232.   const ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST = ENABLE_FLAGS_MAINTAIN_STABLE_LIST_VAL >= 1;
  233.   const CHAT_MENU_SCROLL_UNLOCKING = CHAT_MENU_REFIT_ALONG_SCROLLING >= 1;
  234.   let runTickerClassName = 'run-ticker';
  235.  
  236.   const dummyImgURL = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
  237.   /*
  238.     WebP: data:image/webp;base64,UklGRjAB
  239.     PNG: data:image/png;base64,iVBORw0KGg==
  240.     JPEG: data:image/jpeg;base64,/9j/4AA=
  241.     GIF: data:image/gif;base64,R0lGODlhAQABAIA=
  242.     BMP: data:image/bmp;base64,Qk1oAAAA
  243.     SVG: data:image/svg+xml;base64,PHN2Zy8+Cg==
  244.  
  245.     WebP: data:image/webp;base64,AAAAAAA=
  246.     PNG:  data:image/png;base64,AAAAAAA=
  247.     JPEG: data:image/jpeg;base64,AAAAAAA=
  248.     GIF:  data:image/gif;base64,AAAAAAA=
  249.     BMP:  data:image/bmp;base64,AAAAAAA=
  250.  
  251.     data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
  252.  
  253.  
  254.   */
  255.  
  256.   // image sizing code
  257.   // (d = (d = KC(a.customThumbnail.thumbnails, 16)) ? lc(oc(d)) : null)
  258.  
  259.  
  260.   //   function KC(a, b, c, d) {
  261.   //     d = void 0 === d ? "width" : d;
  262.   //     if (!a || !a.length)
  263.   //         return null;
  264.   //     if (z("kevlar_tuner_should_always_use_device_pixel_ratio")) {
  265.   //         var e = window.devicePixelRatio;
  266.   //         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"));
  267.   //         HC = e
  268.   //     } else
  269.   //         HC || (HC = window.devicePixelRatio);
  270.   //     e = HC;
  271.   //     z("kevlar_tuner_should_always_use_device_pixel_ratio") ? b *= e : 1 < e && (b *= e);
  272.   //     if (z("kevlar_tuner_min_thumbnail_quality"))
  273.   //         return a[0].url || null;
  274.   //     e = a.length;
  275.   //     if (z("kevlar_tuner_max_thumbnail_quality"))
  276.   //         return a[e - 1].url || null;
  277.   //     if (c)
  278.   //         for (var h = 0; h < e; h++)
  279.   //             if (0 <= a[h].url.indexOf(c))
  280.   //                 return a[h].url || null;
  281.   //     for (c = 0; c < e; c++)
  282.   //         if (a[c][d] >= b)
  283.   //             return a[c].url || null;
  284.   //     for (b = e - 1; 0 < b; b--)
  285.   //         if (a[b][d])
  286.   //             return a[b].url || null;
  287.   //     return a[0].url || null
  288.   // }
  289.  
  290.   const { IntersectionObserver } = __CONTEXT__;
  291.  
  292.   /** @type {globalThis.PromiseConstructor} */
  293.   const Promise = (async () => { })().constructor; // YouTube hacks Promise in WaterFox Classic and "Promise.resolve(0)" nevers resolve.
  294.  
  295.   // let jsonParseFix = null;
  296.  
  297.   if (!IntersectionObserver) return console.warn("Your browser does not support IntersectionObserver.\nPlease upgrade to the latest version.");
  298.   if (typeof WebAssembly !== 'object') return console.warn("Your browser is too old.\nPlease upgrade to the latest version."); // for passive and once
  299.  
  300.   // necessity of cssText3_smooth_transform_position to be checked.
  301.   const cssText3_smooth_transform_position = ENABLE_NO_SMOOTH_TRANSFORM ? `
  302.  
  303.     #item-offset.style-scope.yt-live-chat-item-list-renderer > #items.style-scope.yt-live-chat-item-list-renderer {
  304.         position: static !important;
  305.     }
  306.  
  307.   `: '';
  308.  
  309.   // fallback if dummy style fn fails
  310.   const cssText4_smooth_transform_forced_props = ENABLE_NO_SMOOTH_TRANSFORM ? `
  311.  
  312.     /* optional */
  313.     #item-offset.style-scope.yt-live-chat-item-list-renderer {
  314.         height: auto !important;
  315.         min-height: unset !important;
  316.     }
  317.  
  318.     #items.style-scope.yt-live-chat-item-list-renderer {
  319.         transform: translateY(0px) !important;
  320.     }
  321.  
  322.     /* optional */
  323.  
  324.   `: '';
  325.  
  326.   const cssText5 = SET_CONTAIN_FOR_CHATROOM ? `
  327.  
  328.     /* ------------------------------------------------------------------------------------------------------------- */
  329.  
  330.     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 {
  331.         contain: layout style;
  332.     }
  333.  
  334.     #items.style-scope.yt-live-chat-item-list-renderer {
  335.         contain: layout paint style;
  336.     }
  337.  
  338.     #item-offset.style-scope.yt-live-chat-item-list-renderer {
  339.         contain: style;
  340.     }
  341.  
  342.     #item-scroller.style-scope.yt-live-chat-item-list-renderer {
  343.         contain: size style;
  344.     }
  345.  
  346.     #contents.style-scope.yt-live-chat-item-list-renderer, #chat.style-scope.yt-live-chat-renderer, img.style-scope.yt-img-shadow[width][height] {
  347.         contain: size layout paint style;
  348.     }
  349.  
  350.     .style-scope.yt-live-chat-ticker-renderer[role="button"][aria-label], .style-scope.yt-live-chat-ticker-renderer[role="button"][aria-label] > #container {
  351.         contain: layout paint style;
  352.     }
  353.  
  354.     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 {
  355.         contain: layout style;
  356.     }
  357.  
  358.     tp-yt-paper-tooltip[style*="inset"][role="tooltip"] {
  359.         contain: layout paint style;
  360.     }
  361.  
  362.     /* ------------------------------------------------------------------------------------------------------------- */
  363.  
  364.   ` : '';
  365.  
  366.   const cssText6b_show_more_button = FIX_SHOW_MORE_BUTTON_LOCATION ? `
  367.  
  368.     yt-live-chat-renderer[has-action-panel-renderer] #show-more.yt-live-chat-item-list-renderer{
  369.         top: 4px;
  370.         transition-property: top;
  371.         bottom: unset;
  372.     }
  373.  
  374.     yt-live-chat-renderer[has-action-panel-renderer] #show-more.yt-live-chat-item-list-renderer[disabled]{
  375.         top: -42px;
  376.     }
  377.  
  378.   `: '';
  379.  
  380.   const cssText6c_input_panel_overflow = FIX_INPUT_PANEL_OVERFLOW_ISSUE ? `
  381.  
  382.     #input-panel #picker-buttons yt-live-chat-icon-toggle-button-renderer#product-picker {
  383.         contain: layout style;
  384.     }
  385.  
  386.     #chat.yt-live-chat-renderer ~ #panel-pages.yt-live-chat-renderer {
  387.         overflow: visible;
  388.     }
  389.  
  390.   `: '';
  391.  
  392.   const cssText6d_input_panel_border = FIX_INPUT_PANEL_BORDER_ISSUE ? `
  393.  
  394.     html #panel-pages.yt-live-chat-renderer > #input-panel.yt-live-chat-renderer:not(:empty) {
  395.         --yt-live-chat-action-panel-top-border: none;
  396.     }
  397.  
  398.     html #panel-pages.yt-live-chat-renderer > #input-panel.yt-live-chat-renderer.iron-selected > *:first-child {
  399.         border-top: 1px solid var(--yt-live-chat-panel-pages-border-color);
  400.     }
  401.  
  402.     html #panel-pages.yt-live-chat-renderer {
  403.         border-top: 0;
  404.         border-bottom: 0;
  405.     }
  406.  
  407.   `: '';
  408.  
  409.   const cssText7b_content_visibility_unset = FORCE_CONTENT_VISIBILITY_UNSET ? `
  410.  
  411.     img,
  412.     yt-img-shadow[height][width],
  413.     yt-img-shadow {
  414.         content-visibility: visible !important;
  415.     }
  416.  
  417.   `  : '';
  418.  
  419.   const cssText7c_will_change_unset = FORCE_WILL_CHANGE_UNSET ? `
  420.  
  421.     /* remove YouTube constant will-change */
  422.     /* constant value will slow down the performance; default auto */
  423.  
  424.     /* www-player.css */
  425.     html .ytp-contextmenu,
  426.     html .ytp-settings-menu {
  427.         will-change: unset;
  428.     }
  429.  
  430.     /* frequently matched elements */
  431.     html .fill.yt-interaction,
  432.     html .stroke.yt-interaction,
  433.     html .yt-spec-touch-feedback-shape__fill,
  434.     html .yt-spec-touch-feedback-shape__stroke {
  435.         will-change: unset;
  436.     }
  437.  
  438.     /* live_chat_polymer.js */
  439.     /*
  440.     html .toggle-button.tp-yt-paper-toggle-button,
  441.     html #primaryProgress.tp-yt-paper-progress,
  442.     html #secondaryProgress.tp-yt-paper-progress,
  443.     html #onRadio.tp-yt-paper-radio-button,
  444.     html .fill.yt-interaction,
  445.     html .stroke.yt-interaction,
  446.     html .yt-spec-touch-feedback-shape__fill,
  447.     html .yt-spec-touch-feedback-shape__stroke {
  448.         will-change: unset;
  449.     }
  450.     */
  451.  
  452.     /* desktop_polymer_enable_wil_icons.js */
  453.     /* html .fill.yt-interaction,
  454.     html .stroke.yt-interaction, */
  455.     html tp-yt-app-header::before,
  456.     html tp-yt-iron-list,
  457.     html #items.tp-yt-iron-list > *,
  458.     html #onRadio.tp-yt-paper-radio-button,
  459.     html .toggle-button.tp-yt-paper-toggle-button,
  460.     html ytd-thumbnail-overlay-toggle-button-renderer[use-expandable-tooltip] #label.ytd-thumbnail-overlay-toggle-button-renderer,
  461.     html #items.ytd-post-multi-image-renderer,
  462.     html #items.ytd-horizontal-card-list-renderer,
  463.     html #items.yt-horizontal-list-renderer,
  464.     html #left-arrow.yt-horizontal-list-renderer,
  465.     html #right-arrow.yt-horizontal-list-renderer,
  466.     html #items.ytd-video-description-infocards-section-renderer,
  467.     html #items.ytd-video-description-music-section-renderer,
  468.     html #chips.ytd-feed-filter-chip-bar-renderer,
  469.     html #chips.yt-chip-cloud-renderer,
  470.     html #items.ytd-merch-shelf-renderer,
  471.     html #items.ytd-product-details-image-carousel-renderer,
  472.     html ytd-video-preview,
  473.     html #player-container.ytd-video-preview,
  474.     html #primaryProgress.tp-yt-paper-progress,
  475.     html #secondaryProgress.tp-yt-paper-progress,
  476.     html ytd-miniplayer[enabled] /* ,
  477.     html .yt-spec-touch-feedback-shape__fill,
  478.     html .yt-spec-touch-feedback-shape__stroke */ {
  479.         will-change: unset;
  480.     }
  481.  
  482.     /* other */
  483.     .ytp-videowall-still-info-content[class],
  484.     .ytp-suggestion-image[class] {
  485.         will-change: unset !important;
  486.     }
  487.  
  488.   ` : '';
  489.  
  490.   const ENABLE_FONT_PRE_RENDERING = typeof HTMLElement.prototype.append === 'function' ? (ENABLE_FONT_PRE_RENDERING_PREFERRED || 0) : 0;
  491.   const cssText8_fonts_pre_render = ENABLE_FONT_PRE_RENDERING ? `
  492.  
  493.     elzm-fonts {
  494.         visibility: collapse;
  495.         position: fixed;
  496.         top: -10px;
  497.         left: -10px;
  498.         font-size: 10pt;
  499.         line-height: 100%;
  500.         width: 100px;
  501.         height: 100px;
  502.         transform: scale(0.1);
  503.         transform: scale(0.01);
  504.         transform: scale(0.001);
  505.         transform-origin: 0 0;
  506.         contain: strict;
  507.         display: block;
  508.  
  509.         pointer-events: none !important;
  510.         user-select: none !important;
  511.     }
  512.  
  513.     elzm-fonts[id]#elzm-fonts-yk75g {
  514.         user-select: none !important;
  515.         pointer-events: none !important;
  516.     }
  517.  
  518.     elzm-font {
  519.         visibility: collapse;
  520.         position: absolute;
  521.         line-height: 100%;
  522.         width: 100px;
  523.         height: 100px;
  524.         contain: strict;
  525.         display: block;
  526.  
  527.         user-select: none !important;
  528.         pointer-events: none !important;
  529.     }
  530.  
  531.     elzm-font::before {
  532.         visibility: collapse;
  533.         position: absolute;
  534.         line-height: 100%;
  535.         width: 100px;
  536.         height: 100px;
  537.         contain: strict;
  538.         display: block;
  539.  
  540.         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';
  541.  
  542.         user-select: none !important;
  543.         pointer-events: none !important;
  544.     }
  545.  
  546.   `: '';
  547.  
  548.   const cssText9_no_backdrop_filter_when_menu_shown = NO_BACKDROP_FILTER_WHEN_MENU_SHOWN ? `
  549.     tp-yt-iron-dropdown.yt-live-chat-app ytd-menu-popup-renderer  {
  550.         -webkit-backdrop-filter: none;
  551.         backdrop-filter: none;
  552.     }
  553.   `: '';
  554.  
  555.   const cssText10_show_more_blinker = ENABLE_SHOW_MORE_BLINKER ? `
  556.  
  557.     @keyframes blinker-miuzp {
  558.         0%, 60%, 100% {
  559.             opacity: 1;
  560.         }
  561.         30% {
  562.             opacity: 0.6;
  563.         }
  564.     }
  565.  
  566.     yt-icon-button#show-more.has-new-messages-miuzp {
  567.         animation: blinker-miuzp 1.74s linear infinite;
  568.     }
  569.  
  570.   `: '';
  571.  
  572.   const cssText11_entire_message_clickable = FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK ? `
  573.  
  574.     yt-live-chat-paid-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  575.       pointer-events: none !important;
  576.     }
  577.  
  578.     yt-live-chat-membership-item-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  579.       pointer-events: none !important;
  580.     }
  581.  
  582.     yt-live-chat-paid-sticker-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  583.       pointer-events: none !important;
  584.     }
  585.  
  586.     yt-live-chat-text-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  587.       pointer-events: none !important; /* TO_BE_REVIEWED */
  588.     }
  589.  
  590.     yt-live-chat-auto-mod-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  591.       pointer-events: none !important;
  592.     }
  593.  
  594.   `: '';
  595.  
  596.   const cssText12_nowrap_tooltip = MAX_TOOLTIP_NO_WRAP_WIDTH && typeof MAX_TOOLTIP_NO_WRAP_WIDTH === 'string' ? `
  597.  
  598.  
  599.     tp-yt-paper-tooltip[role="tooltip"] {
  600.       box-sizing: content-box !important;
  601.       margin: 0px !important;
  602.       padding: 0px !important;
  603.       contain: none !important;
  604.     }
  605.  
  606.     tp-yt-paper-tooltip[role="tooltip"] #tooltip[style-target="tooltip"] {
  607.       box-sizing: content-box !important;
  608.       display: inline-block;
  609.       contain: none !important;
  610.     }
  611.  
  612.  
  613.     tp-yt-paper-tooltip[role="tooltip"] #tooltip[style-target="tooltip"]{
  614.       max-width: ${MAX_TOOLTIP_NO_WRAP_WIDTH};
  615.       width: max-content;
  616.       text-overflow: ellipsis;
  617.       overflow: hidden;
  618.       white-space: nowrap;
  619.     }
  620.  
  621.  
  622.   `: '';
  623.  
  624.  
  625.   const cssText13_no_text_select_when_menu_visible = `
  626.     [menu-visible] {
  627.       --sfc47-text-select: none;
  628.     }
  629.     [menu-visible] #header[id][class],
  630.     [menu-visible] #content[id][class],
  631.     [menu-visible] #header[id][class] *,
  632.     [menu-visible] #content[id][class] * {
  633.       user-select: var(--sfc47-text-select) !important;
  634.     }
  635.     [menu-visible] #menu {
  636.       --sfc47-text-select: inherit;
  637.     }
  638.   `
  639.  
  640.  
  641.   const addCss = () => `
  642.  
  643.     @property --ticker-rtime {
  644.       syntax: "<percentage>";
  645.       inherits: false;
  646.       initial-value: 0%;
  647.     }
  648.  
  649.     /*
  650.     .run-ticker {
  651.       background:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2));
  652.     }
  653.  
  654.     .run-ticker-test {
  655.       background: #00000001;
  656.     }
  657.  
  658.     .run-ticker-forced,
  659.     yt-live-chat-ticker-renderer #items > * > #container.run-ticker-forced,
  660.     yt-live-chat-ticker-renderer[class] #items[class] > *[class] > #container.run-ticker-forced[class]
  661.     {
  662.       background:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2)) !important;
  663.     }
  664.     */
  665.  
  666.     .run-ticker {
  667.       --ticker-bg:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2));
  668.     }
  669.  
  670.     .run-ticker,
  671.     yt-live-chat-ticker-renderer #items > * > #container.run-ticker,
  672.     yt-live-chat-ticker-renderer[class] #items[class] > *[class] > #container.run-ticker[class]
  673.     {
  674.       background: var(--ticker-bg) !important;
  675.     }
  676.  
  677.     yt-live-chat-ticker-dummy777-item-renderer {
  678.       background: #00000001;
  679.     }
  680.  
  681.     yt-live-chat-ticker-dummy777-item-renderer[dummy777] {
  682.       position: fixed !important;
  683.       top: -1000px !important;
  684.       left: -1000px !important;
  685.       font-size: 1px !important;
  686.       color: transparent !important;
  687.       pointer-events: none !important;
  688.       z-index: -1 !important;
  689.       contain: strict !important;
  690.       box-sizing: border-box !important;
  691.       pointer-events: none !important;
  692.       user-select: none !important;
  693.       max-width: 1px !important;
  694.       max-height: 1px !important;
  695.       overflow: hidden !important;
  696.       visibility: collapse !important;
  697.       display: none !important;
  698.     }
  699.  
  700.     yt-live-chat-ticker-dummy777-item-renderer #container {
  701.       background: inherit;
  702.     }
  703.  
  704.  
  705.     ${cssText8_fonts_pre_render}
  706.  
  707.     ${cssText9_no_backdrop_filter_when_menu_shown}
  708.  
  709.     @supports (contain: layout paint style) {
  710.  
  711.       ${cssText5}
  712.  
  713.     }
  714.  
  715.     @supports (color: var(--general)) {
  716.  
  717.       html {
  718.           --yt-live-chat-item-list-renderer-padding: 0px 0px;
  719.       }
  720.  
  721.       ${cssText3_smooth_transform_position}
  722.  
  723.       ${cssText7c_will_change_unset}
  724.  
  725.       ${cssText7b_content_visibility_unset}
  726.  
  727.       yt-live-chat-item-list-renderer:not([allow-scroll]) #item-scroller.yt-live-chat-item-list-renderer {
  728.           overflow-y: scroll;
  729.           padding-right: 0;
  730.       }
  731.  
  732.       ${cssText4_smooth_transform_forced_props}
  733.  
  734.       yt-icon[icon="down_arrow"] > *, yt-icon-button#show-more > * {
  735.           pointer-events: none !important;
  736.       }
  737.  
  738.       #continuations, #continuations * {
  739.           contain: strict;
  740.           position: fixed;
  741.           top: 2px;
  742.           height: 1px;
  743.           width: 2px;
  744.           height: 1px;
  745.           visibility: collapse;
  746.       }
  747.  
  748.       ${cssText6b_show_more_button}
  749.  
  750.       ${cssText6d_input_panel_border}
  751.  
  752.       ${cssText6c_input_panel_overflow}
  753.  
  754.     }
  755.  
  756.  
  757.     @supports (overflow-anchor: auto) {
  758.  
  759.       .no-anchor * {
  760.           overflow-anchor: none;
  761.       }
  762.       .no-anchor > item-anchor {
  763.           overflow-anchor: auto;
  764.       }
  765.  
  766.       item-anchor {
  767.  
  768.           height:1px;
  769.           width: 100%;
  770.           transform: scaleY(0.00001);
  771.           transform-origin:0 0;
  772.           contain: strict;
  773.           opacity:0;
  774.           display:flex;
  775.           position:relative;
  776.           flex-shrink:0;
  777.           flex-grow:0;
  778.           margin-bottom:0;
  779.           overflow:hidden;
  780.           box-sizing:border-box;
  781.           visibility: visible;
  782.           content-visibility: visible;
  783.           contain-intrinsic-size: auto 1px;
  784.           pointer-events:none !important;
  785.  
  786.       }
  787.  
  788.       #item-scroller.style-scope.yt-live-chat-item-list-renderer[class] {
  789.           overflow-anchor: initial !important; /* whenever ENABLE_OVERFLOW_ANCHOR or not */
  790.       }
  791.  
  792.       html item-anchor {
  793.  
  794.           height: 1px;
  795.           width: 1px;
  796.           top: auto;
  797.           left: auto;
  798.           right: auto;
  799.           bottom: auto;
  800.           transform: translateY(-1px);
  801.           position: absolute;
  802.           z-index: -1;
  803.  
  804.       }
  805.  
  806.     }
  807.  
  808.     @supports (color: var(--pre-rendering)) {
  809.  
  810.       @keyframes dontRenderAnimation {
  811.           0% {
  812.               background-position-x: 3px;
  813.           }
  814.           100% {
  815.               background-position-x: 4px;
  816.           }
  817.       }
  818.  
  819.       .dont-render[class] {
  820.           /* visibility: collapse !important; */
  821.           /* visibility: collapse will make innerText become "" which conflicts with BetterStreamChat; see https://gf.qytechs.cn/scripts/469878/discussions/197267 */
  822.  
  823.           transform: scale(0.01) !important;
  824.           transform: scale(0.00001) !important;
  825.           transform: scale(0.0000001) !important;
  826.           transform-origin: 0 0 !important;
  827.           z-index: -1 !important;
  828.           contain: strict !important;
  829.           box-sizing: border-box !important;
  830.  
  831.           height: 1px !important;
  832.           height: 0.1px !important;
  833.           height: 0.01px !important;
  834.           height: 0.0001px !important;
  835.           height: 0.000001px !important;
  836.  
  837.           animation: dontRenderAnimation 1ms linear 80ms 1 normal forwards !important;
  838.  
  839.           pointer-events: none !important;
  840.           user-select: none !important;
  841.  
  842.       }
  843.  
  844.       #sk35z {
  845.         display: block !important;
  846.  
  847.         visibility: collapse !important;
  848.  
  849.         transform: scale(0.01) !important;
  850.         transform: scale(0.00001) !important;
  851.         transform: scale(0.0000001) !important;
  852.         transform-origin: 0 0 !important;
  853.         z-index: -1 !important;
  854.         contain: strict !important;
  855.         box-sizing: border-box !important;
  856.  
  857.         height: 1px !important;
  858.         height: 0.1px !important;
  859.         height: 0.01px !important;
  860.         height: 0.0001px !important;
  861.         height: 0.000001px !important;
  862.  
  863.         position: absolute !important;
  864.         top: -1000px !important;
  865.         left: -1000px !important;
  866.  
  867.       }
  868.  
  869.     }
  870.  
  871.     [rNgzQ] {
  872.       opacity: 0 !important;
  873.       pointer-events: none !important;
  874.     }
  875.  
  876.  
  877.     ${cssText10_show_more_blinker}
  878.  
  879.     ${cssText11_entire_message_clickable}
  880.  
  881.     ${cssText12_nowrap_tooltip}
  882.  
  883.     ${cssText13_no_text_select_when_menu_visible}
  884.  
  885.   `;
  886.  
  887.  
  888.   const konsole = {
  889.     nil: Symbol(),
  890.     logs: [],
  891.     style: '',
  892.     log(...args) {
  893.       konsole.logs.push({
  894.         type: 'log',
  895.         msg: [konsole.tag || konsole.nil, ...args, konsole.style || konsole.nil].filter(e => e !== konsole.nil)
  896.       });
  897.     },
  898.     setTag(tag) {
  899.       konsole.tag = tag;
  900.     },
  901.     setStyle(style){
  902.       konsole.style = style;
  903.     },
  904.     groupCollapsed(...args){
  905.  
  906.       konsole.logs.push({
  907.         type:'groupCollapsed',
  908.         msg: [...args].filter(e => e !== konsole.nil)
  909.       });
  910.     },
  911.     groupEnd(){
  912.  
  913.       konsole.logs.push({
  914.         type:'groupEnd'
  915.       })
  916.     },
  917.     print() {
  918.       const copy = konsole.logs.slice(0);
  919.       konsole.logs.length = 0;
  920.       for (const {type, msg} of copy) {
  921.         if(type ==='log'){
  922.           console.log(...msg)
  923.         }else if (type === 'groupCollapsed'){
  924.  
  925.           console.groupCollapsed(...msg)
  926.         }else if(type ==='groupEnd'){
  927.           console.groupEnd();
  928.         }
  929.         
  930.       }
  931.  
  932.     }
  933.   };
  934.  
  935.   /*
  936.   konsole.groupCollapsedX = (text1, text2) => {
  937.  
  938.     if(!text2){
  939.  
  940.       konsole.groupCollapsed(`%c${text1}`,
  941.       "background-color: #010502; color: #6acafe; font-weight: 700; padding: 2px;"
  942.     );
  943.     }else{
  944.  
  945.       konsole.groupCollapsed(`%c${text1}%c${text2}`,
  946.       "background-color: #010502; color: #6acafe; font-weight: 700; padding: 2px;",
  947.       "background-color: #010502; color: #6ad9fe; font-weight: 300; padding: 2px;"
  948.     );
  949.     }
  950.   }
  951.  
  952.   konsole.groupCollapsedX('YouTube Super Fast Chat');
  953.  
  954.   setTimeout(()=>{
  955.  
  956.     konsole.setTag('[[Fonts Pre-Rendering]]');
  957.     konsole.log(123);
  958.     konsole.log('wsd',332, 'ssa');
  959.     konsole.setTag('');
  960.   }, 100);
  961.  
  962.   setTimeout(()=>{
  963.  
  964.     konsole.setTag('[[Fonts Pre-Rendering 2]]');
  965.     konsole.log(123);
  966.     konsole.log('wsd',332, 'ssa');
  967.     konsole.setTag('');
  968.   }, 300);
  969.  
  970.   setTimeout(()=>{
  971.  
  972.   konsole.groupEnd();
  973.   konsole.print();
  974.   }, 1000);
  975.  
  976.   */
  977.  
  978.   const win = typeof unsafeWindow !== 'undefined' ? unsafeWindow : (this instanceof Window ? this : window);
  979.  
  980.   // Create a unique key for the script and check if it is already running
  981.   const hkey_script = 'mchbwnoasqph';
  982.   if (win[hkey_script]) throw new Error('Duplicated Userscript Calling'); // avoid duplicated scripting
  983.   win[hkey_script] = true;
  984.  
  985.   if (!!ATTEMPT_ANIMATED_TICKER_BACKGROUND) {
  986.  
  987.     let te4 = setTimeout(() => { }); // dummy; skip timerId only;
  988.     if (te4 < 3) {
  989.       setTimeout(() => { });
  990.       setTimeout(() => { });
  991.     }
  992.  
  993.   }
  994.  
  995.   const firstKey = (obj) => {
  996.     for (const key in obj) {
  997.       if (obj.hasOwnProperty(key)) return key;
  998.     }
  999.     return null;
  1000.   }
  1001.  
  1002.   const firstObjectKey = (obj) => {
  1003.     for (const key in obj) {
  1004.       if (obj.hasOwnProperty(key) && typeof obj[key] === 'object') return key;
  1005.     }
  1006.     return null;
  1007.   }
  1008.  
  1009.   // function removeElementFromArray(arr, index) {
  1010.   //   if (index >= 0 && index < arr.length) {
  1011.   //     arr.splice(index, 1);
  1012.   //   }
  1013.   // }
  1014.  
  1015.   // function getRandomInt(a, b) {
  1016.   //   // Ensure that 'a' and 'b' are integers
  1017.   //   a = Math.ceil(a);
  1018.   //   b = Math.floor(b);
  1019.  
  1020.   //   // Generate a random integer in the range [a, b]
  1021.   //   return Math.floor(Math.random() * (b - a + 1)) + a;
  1022.   // }
  1023.  
  1024.   function deepCopy(obj, skipKeys) {
  1025.     skipKeys = skipKeys || [];
  1026.     if (!obj || typeof obj !== 'object') return obj;
  1027.     if (Array.isArray(obj)) {
  1028.       return obj.map(item => deepCopy(item, skipKeys));
  1029.     }
  1030.     const copy = {};
  1031.     for (let key in obj) {
  1032.       if (!skipKeys.includes(key)) {
  1033.         copy[key] = deepCopy(obj[key], skipKeys);
  1034.       }
  1035.     }
  1036.     return copy;
  1037.   }
  1038.  
  1039.   class Mutex {
  1040.  
  1041.     constructor() {
  1042.       this.p = Promise.resolve()
  1043.     }
  1044.  
  1045.     /**
  1046.      *  @param {(lockResolve: () => void)} f
  1047.      */
  1048.     lockWith(f) {
  1049.       this.p = this.p.then(() => new Promise(f).catch(console.warn))
  1050.     }
  1051.  
  1052.   }
  1053.  
  1054.   const PromiseExternal = ((resolve_, reject_) => {
  1055.     const h = (resolve, reject) => { resolve_ = resolve; reject_ = reject };
  1056.     return class PromiseExternal extends Promise {
  1057.       constructor(cb = h) {
  1058.         super(cb);
  1059.         if (cb === h) {
  1060.           /** @type {(value: any) => void} */
  1061.           this.resolve = resolve_;
  1062.           /** @type {(reason?: any) => void} */
  1063.           this.reject = reject_;
  1064.         }
  1065.       }
  1066.     };
  1067.   })();
  1068.  
  1069.   /** @type {typeof PromiseExternal.prototype | null} */
  1070.   let relayPromise = null;
  1071.  
  1072.  
  1073.   /** @type {typeof PromiseExternal.prototype | null} */
  1074.   let onPlayStateChangePromise = null;
  1075.  
  1076.  
  1077.  
  1078.   let playEventsStack = Promise.resolve();
  1079.  
  1080.  
  1081.   let playerProgressChangedArg1 = null;
  1082.   let playerProgressChangedArg2 = null;
  1083.   let playerProgressChangedArg3 = null;
  1084.  
  1085.  
  1086.   function dr(s) {
  1087.     // reserved for future use
  1088.     return s;
  1089.     // return window.deWeakJS ? window.deWeakJS(s) : s;
  1090.   }
  1091.  
  1092.   const insp = o => o ? (o.polymerController || o.inst || o || 0) : (o || 0);
  1093.   const indr = o => insp(o).$ || o.$ || 0;
  1094.  
  1095.   const getProto = (element) => {
  1096.     if (element) {
  1097.       const cnt = insp(element);
  1098.       return cnt.constructor.prototype || null;
  1099.     }
  1100.     return null;
  1101.   }
  1102.  
  1103.   const assertor = (f) => f() || console.assert(false, f + "");
  1104.  
  1105.   const fnIntegrity = (f, d) => {
  1106.     if (!f || typeof f !== 'function') {
  1107.       console.warn('f is not a function', f);
  1108.       return;
  1109.     }
  1110.     let p = f + "", s = 0, j = -1, w = 0;
  1111.     for (let i = 0, l = p.length; i < l; i++) {
  1112.       const t = p[i];
  1113.       if (((t >= 'a' && t <= 'z') || (t >= 'A' && t <= 'Z'))) {
  1114.         if (j < i - 1) w++;
  1115.         j = i;
  1116.       } else {
  1117.         s++;
  1118.       }
  1119.     }
  1120.     let itz = `${f.length}.${s}.${w}`;
  1121.     if (!d) {
  1122.       return itz;
  1123.     } else if (itz !== d) {
  1124.       console.warn('fnIntegrity=false', itz);
  1125.       return false;
  1126.     } else {
  1127.       return true;
  1128.     }
  1129.   }
  1130.  
  1131.  
  1132.   const px2cm = (px) => px * window.devicePixelRatio * 0.026458333;
  1133.   const px2mm = (px) => px * window.devicePixelRatio * 0.26458333;
  1134.  
  1135.  
  1136.   ; (ENABLE_FLAGS_MAINTAIN_STABLE_LIST || ENABLE_FLAGS_REUSE_COMPONENTS) && (() => {
  1137.  
  1138.     const _config_ = () => {
  1139.       try {
  1140.         return ytcfg.data_;
  1141.       } catch (e) { }
  1142.       return null;
  1143.     };
  1144.  
  1145.     const flagsFn = (EXPERIMENT_FLAGS) => {
  1146.  
  1147.       // console.log(700)
  1148.  
  1149.       if (!EXPERIMENT_FLAGS) return;
  1150.  
  1151.       if (ENABLE_FLAGS_MAINTAIN_STABLE_LIST) {
  1152.         if (USE_MAINTAIN_STABLE_LIST_ONLY_WHEN_KS_FLAG_IS_SET ? EXPERIMENT_FLAGS.kevlar_should_maintain_stable_list === true : true) {
  1153.           // EXPERIMENT_FLAGS.kevlar_tuner_should_test_maintain_stable_list = true; // timestamp toggle issue
  1154.           EXPERIMENT_FLAGS.kevlar_should_maintain_stable_list = true;
  1155.           // console.log(701)
  1156.         }
  1157.       }
  1158.  
  1159.       if (ENABLE_FLAGS_REUSE_COMPONENTS) {
  1160.         EXPERIMENT_FLAGS.kevlar_tuner_should_test_reuse_components = true;
  1161.         EXPERIMENT_FLAGS.kevlar_tuner_should_reuse_components = true;
  1162.         // console.log(702);
  1163.       }
  1164.  
  1165.     };
  1166.  
  1167.     const uf = (config_) => {
  1168.       config_ = config_ || _config_();
  1169.       if (config_) {
  1170.         const { EXPERIMENT_FLAGS, EXPERIMENTS_FORCED_FLAGS } = config_;
  1171.         if (EXPERIMENT_FLAGS) {
  1172.           flagsFn(EXPERIMENT_FLAGS);
  1173.           if (EXPERIMENTS_FORCED_FLAGS) flagsFn(EXPERIMENTS_FORCED_FLAGS);
  1174.         }
  1175.       }
  1176.     }
  1177.  
  1178.     window._ytConfigHacks.add((config_) => {
  1179.       uf(config_);
  1180.     });
  1181.  
  1182.     uf();
  1183.  
  1184.   })();
  1185.  
  1186.   if (DISABLE_Translation_By_Google) {
  1187.  
  1188.     let mo = new MutationObserver(() => {
  1189.  
  1190.       if (!mo) return;
  1191.       let h = document.head;
  1192.       if (!h) return;
  1193.       mo.disconnect();
  1194.       mo.takeRecords();
  1195.       mo = null;
  1196.  
  1197.       let meta = document.createElement('meta');
  1198.       meta.setAttribute('name', 'google');
  1199.       meta.setAttribute('content', 'notranslate');
  1200.       h.appendChild(meta);
  1201.  
  1202.  
  1203.     });
  1204.     mo.observe(document, { subtree: true, childList: true });
  1205.   }
  1206.  
  1207.  
  1208.   console.assert(MAX_ITEMS_FOR_TOTAL_DISPLAY > 0 && MAX_ITEMS_FOR_FULL_FLUSH > 0 && MAX_ITEMS_FOR_TOTAL_DISPLAY > MAX_ITEMS_FOR_FULL_FLUSH)
  1209.  
  1210.   let ENABLE_DELAYED_CHAT_OCCURRENCE_CAPABLE = false;
  1211.   const isContainSupport = CSS.supports('contain', 'layout paint style');
  1212.   if (!isContainSupport) {
  1213.     console.warn("Your browser does not support css property 'contain'.\nPlease upgrade to the latest version.".trim());
  1214.   } else {
  1215.     ENABLE_DELAYED_CHAT_OCCURRENCE_CAPABLE = true;
  1216.   }
  1217.  
  1218.   let ENABLE_OVERFLOW_ANCHOR_CAPABLE = false;
  1219.   const isOverflowAnchorSupport = CSS.supports('overflow-anchor', 'auto');
  1220.   if (!isOverflowAnchorSupport) {
  1221.     console.warn("Your browser does not support css property 'overflow-anchor'.\nPlease upgrade to the latest version.".trim());
  1222.   } else {
  1223.     ENABLE_OVERFLOW_ANCHOR_CAPABLE = true;
  1224.   }
  1225.  
  1226.   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.
  1227.  
  1228.   const ENABLE_OVERFLOW_ANCHOR = ENABLE_OVERFLOW_ANCHOR_PREFERRED && ENABLE_OVERFLOW_ANCHOR_CAPABLE && ENABLE_NO_SMOOTH_TRANSFORM;
  1229.   const ENABLE_DELAYED_CHAT_OCCURRENCE = ENABLE_DELAYED_CHAT_OCCURRENCE_PREFERRED && ENABLE_DELAYED_CHAT_OCCURRENCE_CAPABLE && ENABLE_OVERFLOW_ANCHOR && ENABLE_NO_SMOOTH_TRANSFORM && NOT_FIREFOX;
  1230.  
  1231.   let hasTimerModified = null;
  1232.   const DO_CHECK_TICKER_BACKGROUND_OVERRIDED = !!ATTEMPT_ANIMATED_TICKER_BACKGROUND || ENABLE_RAF_HACK_TICKERS;
  1233.  
  1234.   const fxOperator = (proto, propertyName) => {
  1235.     let propertyDescriptorGetter = null;
  1236.     try {
  1237.       propertyDescriptorGetter = Object.getOwnPropertyDescriptor(proto, propertyName).get;
  1238.     } catch (e) { }
  1239.     return typeof propertyDescriptorGetter === 'function' ? (e) => {
  1240.       try {
  1241.  
  1242.         return propertyDescriptorGetter.call(dr(e));
  1243.       } catch (e) { }
  1244.       return e[propertyName];
  1245.     } : (e) => e[propertyName];
  1246.   };
  1247.  
  1248.   const nodeParent = fxOperator(Node.prototype, 'parentNode');
  1249.   // const nFirstElem = fxOperator(HTMLElement.prototype, 'firstElementChild');
  1250.   const nPrevElem = fxOperator(HTMLElement.prototype, 'previousElementSibling');
  1251.   const nNextElem = fxOperator(HTMLElement.prototype, 'nextElementSibling');
  1252.   const nLastElem = fxOperator(HTMLElement.prototype, 'lastElementChild');
  1253.  
  1254.   const groupCollapsed = (text1, text2) => {
  1255.  
  1256.     console.groupCollapsed(`%c${text1}%c${text2}`,
  1257.       "background-color: #010502; color: #6acafe; font-weight: 700; padding: 2px;",
  1258.       "background-color: #010502; color: #6ad9fe; font-weight: 300; padding: 2px;"
  1259.     );
  1260.   }
  1261.  
  1262.   // const microNow = () => performance.now() + (performance.timeOrigin || performance.timing.navigationStart);
  1263.  
  1264.  
  1265.   const EVENT_KEY_ON_REGISTRY_READY = "ytI-ce-registry-created";
  1266.   const onRegistryReady = (callback) => {
  1267.     if (typeof customElements === 'undefined') {
  1268.       if (!('__CE_registry' in document)) {
  1269.         // https://github.com/webcomponents/polyfills/
  1270.         Object.defineProperty(document, '__CE_registry', {
  1271.           get() {
  1272.             // return undefined
  1273.           },
  1274.           set(nv) {
  1275.             if (typeof nv == 'object') {
  1276.               delete this.__CE_registry;
  1277.               this.__CE_registry = nv;
  1278.               this.dispatchEvent(new CustomEvent(EVENT_KEY_ON_REGISTRY_READY));
  1279.             }
  1280.             return true;
  1281.           },
  1282.           enumerable: false,
  1283.           configurable: true
  1284.         })
  1285.       }
  1286.       let eventHandler = (evt) => {
  1287.         document.removeEventListener(EVENT_KEY_ON_REGISTRY_READY, eventHandler, false);
  1288.         const f = callback;
  1289.         callback = null;
  1290.         eventHandler = null;
  1291.         f();
  1292.       };
  1293.       document.addEventListener(EVENT_KEY_ON_REGISTRY_READY, eventHandler, false);
  1294.     } else {
  1295.       callback();
  1296.     }
  1297.   };
  1298.  
  1299.   const promiseForCustomYtElementsReady = new Promise(onRegistryReady);
  1300.  
  1301.   const renderReadyPn = typeof ResizeObserver !== 'undefined' ? (sizingTarget) => {
  1302.  
  1303.     return new Promise(resolve => {
  1304.  
  1305.       let ro = new ResizeObserver(entries => {
  1306.         if (entries && entries.length >= 1) {
  1307.           resolve();
  1308.           ro.disconnect();
  1309.           ro = null;
  1310.         }
  1311.       });
  1312.       ro.observe(sizingTarget);
  1313.  
  1314.  
  1315.  
  1316.     });
  1317.  
  1318.   } : (sizingTarget) => {
  1319.  
  1320.  
  1321.     return new Promise(resolve => {
  1322.  
  1323.       let io = new IntersectionObserver(entries => {
  1324.         if (entries && entries.length >= 1) {
  1325.           resolve();
  1326.           io.disconnect();
  1327.           io = null;
  1328.         }
  1329.       });
  1330.       io.observe(sizingTarget);
  1331.  
  1332.  
  1333.  
  1334.     });
  1335.  
  1336.   };
  1337.  
  1338.   /* globals WeakRef:false */
  1339.  
  1340.   /** @type {(o: Object | null) => WeakRef | null} */
  1341.   const mWeakRef = typeof WeakRef === 'function' ? (o => o ? new WeakRef(o) : null) : (o => o || null);
  1342.  
  1343.   /** @type {(wr: Object | null) => Object | null} */
  1344.   const kRef = (wr => (wr && wr.deref) ? wr.deref() : wr);
  1345.  
  1346.   const getLCRDummy = () => {
  1347.     // direct createElement or createComponent_ will make the emoji rendering crashed. reason TBC
  1348.  
  1349.     return Promise.all([customElements.whenDefined('yt-live-chat-app'), customElements.whenDefined('yt-live-chat-renderer')]).then(async () => {
  1350.  
  1351.       const tag = "yt-live-chat-renderer"
  1352.       let dummy = document.querySelector(tag);
  1353.       if (!dummy) {
  1354.  
  1355.         let mo = null;
  1356.  
  1357.         const ytLiveChatApp = document.querySelector('yt-live-chat-app') || document.createElement('yt-live-chat-app');
  1358.  
  1359.         const lcaProto = getProto(ytLiveChatApp);
  1360.  
  1361.         dummy = await new Promise(resolve => {
  1362.  
  1363.           if (typeof lcaProto.createComponent_ === 'function' && !lcaProto.createComponent99_) {
  1364.  
  1365.             lcaProto.createComponent99_ = lcaProto.createComponent_;
  1366.             lcaProto.createComponent98_ = function (a, b, c) {
  1367.               // (3) ['yt-live-chat-renderer', {…}, true]
  1368.               const r = this.createComponent99_.apply(this, arguments);
  1369.               if (a === 'yt-live-chat-renderer') {
  1370.                 resolve(r);
  1371.               }
  1372.               return r;
  1373.             };
  1374.             lcaProto.createComponent_ = lcaProto.createComponent98_;
  1375.  
  1376.           } else {
  1377.  
  1378.             mo = new MutationObserver(() => {
  1379.               const t = document.querySelector(tag);
  1380.               if (t) {
  1381.                 resolve(t);
  1382.               }
  1383.             });
  1384.             mo.observe(document, { subtree: true, childList: true })
  1385.           }
  1386.  
  1387.         });
  1388.  
  1389.         if (mo) {
  1390.           mo.disconnect();
  1391.           mo.takeRecords();
  1392.           mo = null;
  1393.         }
  1394.  
  1395.         if (lcaProto.createComponent99_ && lcaProto.createComponent_ && lcaProto.createComponent98_ === lcaProto.createComponent_) {
  1396.           lcaProto.createComponent_ = lcaProto.createComponent99_;
  1397.           lcaProto.createComponent99_ = null;
  1398.           lcaProto.createComponent98_ = null;
  1399.         }
  1400.  
  1401.       }
  1402.       return dummy;
  1403.  
  1404.     });
  1405.   }
  1406.  
  1407.   const { addCssManaged } = (() => {
  1408.  
  1409.     const addFontPreRendering = () => {
  1410.  
  1411.       groupCollapsed("YouTube Super Fast Chat", " | Fonts Pre-Rendering");
  1412.  
  1413.       let efsContainer = document.createElement('elzm-fonts');
  1414.       efsContainer.id = 'elzm-fonts-yk75g'
  1415.  
  1416.       const arr = [];
  1417.       let p = document.createElement('elzm-font');
  1418.       arr.push(p);
  1419.  
  1420.       if (ENABLE_FONT_PRE_RENDERING & 1) {
  1421.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1422.  
  1423.           p = document.createElement('elzm-font');
  1424.           p.style.fontWeight = size;
  1425.           arr.push(p);
  1426.         }
  1427.       }
  1428.  
  1429.       if (ENABLE_FONT_PRE_RENDERING & 2) {
  1430.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1431.  
  1432.           p = document.createElement('elzm-font');
  1433.           p.style.fontFamily = 'Roboto';
  1434.           p.style.fontWeight = size;
  1435.           arr.push(p);
  1436.         }
  1437.       }
  1438.  
  1439.       if (ENABLE_FONT_PRE_RENDERING & 4) {
  1440.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1441.  
  1442.           p = document.createElement('elzm-font');
  1443.           p.style.fontFamily = '"YouTube Noto",Roboto,Arial,Helvetica,sans-serif';
  1444.           p.style.fontWeight = size;
  1445.           arr.push(p);
  1446.         }
  1447.       }
  1448.  
  1449.  
  1450.       if (ENABLE_FONT_PRE_RENDERING & 8) {
  1451.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1452.  
  1453.           p = document.createElement('elzm-font');
  1454.           p.style.fontFamily = '"Noto",Roboto,Arial,Helvetica,sans-serif';
  1455.           p.style.fontWeight = size;
  1456.           arr.push(p);
  1457.         }
  1458.       }
  1459.  
  1460.  
  1461.       if (ENABLE_FONT_PRE_RENDERING & 16) {
  1462.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1463.  
  1464.           p = document.createElement('elzm-font');
  1465.           p.style.fontFamily = 'sans-serif';
  1466.           p.style.fontWeight = size;
  1467.           arr.push(p);
  1468.         }
  1469.       }
  1470.  
  1471.       console.log('number of elzm-font elements', arr.length);
  1472.  
  1473.       HTMLElement.prototype.append.apply(efsContainer, arr);
  1474.  
  1475.       (document.body || document.documentElement).appendChild(efsContainer);
  1476.  
  1477.  
  1478.       console.log('elzm-font elements have been added to the page for rendering.');
  1479.  
  1480.       console.groupEnd();
  1481.  
  1482.     }
  1483.  
  1484.     let isCssAdded = false;
  1485.  
  1486.     function addCssElement() {
  1487.       let s = document.createElement('style');
  1488.       s.id = 'ewRvC';
  1489.       return s;
  1490.     }
  1491.  
  1492.     const addCssManaged = () => {
  1493.       if (!isCssAdded && document.documentElement && document.head) {
  1494.         isCssAdded = true;
  1495.         document.head.appendChild(dr(addCssElement())).textContent = addCss();
  1496.         if (ENABLE_FONT_PRE_RENDERING) {
  1497.           Promise.resolve().then(addFontPreRendering)
  1498.         }
  1499.       }
  1500.     }
  1501.  
  1502.     return { addCssManaged };
  1503.   })();
  1504.  
  1505.  
  1506.   const { setupStyle } = (() => {
  1507.  
  1508.     const sp7 = Symbol();
  1509.  
  1510.     const proxyHelperFn = (dummy) => ({
  1511.  
  1512.       get(target, prop) {
  1513.         return (prop in dummy) ? dummy[prop] : prop === sp7 ? target : target[prop];
  1514.       },
  1515.       set(target, prop, value) {
  1516.         if (!(prop in dummy)) {
  1517.           target[prop] = value;
  1518.         }
  1519.         return true;
  1520.       },
  1521.       has(target, prop) {
  1522.         return (prop in target);
  1523.       },
  1524.       deleteProperty(target, prop) {
  1525.         return true;
  1526.       },
  1527.       ownKeys(target) {
  1528.         return Object.keys(target);
  1529.       },
  1530.       defineProperty(target, key, descriptor) {
  1531.         return Object.defineProperty(target, key, descriptor);
  1532.       },
  1533.       getOwnPropertyDescriptor(target, key) {
  1534.         return Object.getOwnPropertyDescriptor(target, key);
  1535.       },
  1536.  
  1537.     });
  1538.  
  1539.     const setupStyle = (m1, m2) => {
  1540.       if (!ENABLE_NO_SMOOTH_TRANSFORM) return;
  1541.  
  1542.       const dummy1v = {
  1543.         transform: '',
  1544.         height: '',
  1545.         minHeight: '',
  1546.         paddingBottom: '',
  1547.         paddingTop: ''
  1548.       };
  1549.  
  1550.       const dummyStyleFn = (k) => (function () { const style = this[sp7]; return style[k](...arguments); });
  1551.       for (const k of ['toString', 'getPropertyPriority', 'getPropertyValue', 'item', 'removeProperty', 'setProperty']) {
  1552.         dummy1v[k] = dummyStyleFn(k);
  1553.       }
  1554.  
  1555.       const dummy1p = proxyHelperFn(dummy1v);
  1556.       const sp1v = new Proxy(m1.style, dummy1p);
  1557.       const sp2v = new Proxy(m2.style, dummy1p);
  1558.       Object.defineProperty(m1, 'style', { get() { return sp1v }, set() { }, enumerable: true, configurable: true });
  1559.       Object.defineProperty(m2, 'style', { get() { return sp2v }, set() { }, enumerable: true, configurable: true });
  1560.       m1.removeAttribute("style");
  1561.       m2.removeAttribute("style");
  1562.  
  1563.     }
  1564.  
  1565.     return { setupStyle };
  1566.  
  1567.   })();
  1568.  
  1569.  
  1570.  
  1571.   function setThumbnails(config) {
  1572.  
  1573.     const { baseObject, thumbnails, flag0, imageLinks } = config;
  1574.  
  1575.     if (flag0 || (ENABLE_PRELOAD_THUMBNAIL && imageLinks)) {
  1576.  
  1577.  
  1578.       if (thumbnails && thumbnails.length > 0) {
  1579.         if (flag0 > 0 && thumbnails.length > 1) {
  1580.           let pSize = 0;
  1581.           let newThumbnails = [];
  1582.           for (const thumbnail of thumbnails) {
  1583.             if (!thumbnail || !thumbnail.url) continue;
  1584.             const squarePhoto = thumbnail.width === thumbnail.height && typeof thumbnail.width === 'number';
  1585.             const condSize = pSize <= 0 || (flag0 === 1 ? pSize > thumbnail.width : pSize < thumbnail.width);
  1586.             const leastSizeFulfilled = squarePhoto ? thumbnail.width >= LEAST_IMAGE_SIZE : true;
  1587.             if ((!squarePhoto || condSize) && leastSizeFulfilled) {
  1588.               newThumbnails.push(thumbnail);
  1589.               if (imageLinks) imageLinks.add(thumbnail.url);
  1590.             }
  1591.             if (squarePhoto && condSize && leastSizeFulfilled) {
  1592.               pSize = thumbnail.width;
  1593.             }
  1594.           }
  1595.           if (thumbnails.length !== newThumbnails.length && thumbnails === baseObject.thumbnails && newThumbnails.length > 0) {
  1596.             baseObject.thumbnails = newThumbnails;
  1597.           } else {
  1598.             newThumbnails.length = 0;
  1599.           }
  1600.           newThumbnails = null;
  1601.         } else {
  1602.           for (const thumbnail of thumbnails) {
  1603.             if (thumbnail && thumbnail.url) {
  1604.               if (imageLinks) imageLinks.add(thumbnail.url);
  1605.             }
  1606.           }
  1607.         }
  1608.       }
  1609.  
  1610.     }
  1611.   }
  1612.  
  1613.   function fixLiveChatItem(item, imageLinks) {
  1614.     const liveChatTextMessageRenderer = (item || 0).liveChatTextMessageRenderer || 0;
  1615.     if (liveChatTextMessageRenderer) {
  1616.       const messageRuns = (liveChatTextMessageRenderer.message || 0).runs || 0;
  1617.       if (messageRuns && messageRuns.length > 0) {
  1618.         for (const run of messageRuns) {
  1619.           const emojiImage = (((run || 0).emoji || 0).image || 0);
  1620.           setThumbnails({
  1621.             baseObject: emojiImage,
  1622.             thumbnails: emojiImage.thumbnails,
  1623.             flag0: EMOJI_IMAGE_SINGLE_THUMBNAIL,
  1624.             imageLinks
  1625.           });
  1626.         }
  1627.       }
  1628.       const authorPhoto = liveChatTextMessageRenderer.authorPhoto || 0;
  1629.       setThumbnails({
  1630.         baseObject: authorPhoto,
  1631.         thumbnails: authorPhoto.thumbnails,
  1632.         flag0: AUTHOR_PHOTO_SINGLE_THUMBNAIL,
  1633.         imageLinks
  1634.       });
  1635.     }
  1636.   }
  1637.  
  1638.  
  1639.  
  1640.   let kptPF = null;
  1641.   const emojiPrefetched = new Set();
  1642.   const authorPhotoPrefetched = new Set();
  1643.  
  1644.   function linker(link, rel, href, _as) {
  1645.     return new Promise(resolve => {
  1646.       if (!link) link = document.createElement('link');
  1647.       link.rel = rel;
  1648.       if (_as) link.setAttribute('as', _as);
  1649.       link.onload = function () {
  1650.         resolve({
  1651.           link: this,
  1652.           success: true
  1653.         })
  1654.         this.remove();
  1655.       };
  1656.       link.onerror = function () {
  1657.         resolve({
  1658.           link: this,
  1659.           success: false
  1660.         });
  1661.         this.remove();
  1662.       };
  1663.       link.href = href;
  1664.       document.head.appendChild(link);
  1665.       link = null;
  1666.     });
  1667.   }
  1668.  
  1669.  
  1670.  
  1671.   const cleanContext = async (win) => {
  1672.     const waitFn = requestAnimationFrame; // shall have been binded to window
  1673.     try {
  1674.       let mx = 16; // MAX TRIAL
  1675.       const frameId = 'vanillajs-iframe-v1';
  1676.       /** @type {HTMLIFrameElement | null} */
  1677.       let frame = document.getElementById(frameId);
  1678.       let removeIframeFn = null;
  1679.       if (!frame) {
  1680.         frame = document.createElement('iframe');
  1681.         frame.id = frameId;
  1682.         const blobURL = typeof webkitCancelAnimationFrame === 'function' ? (frame.src = URL.createObjectURL(new Blob([], { type: 'text/html' }))) : null; // avoid Brave Crash
  1683.         frame.sandbox = 'allow-same-origin'; // script cannot be run inside iframe but API can be obtained from iframe
  1684.         let n = document.createElement('noscript'); // wrap into NOSCRPIT to avoid reflow (layouting)
  1685.         n.appendChild(frame);
  1686.         while (!document.documentElement && mx-- > 0) await new Promise(waitFn); // requestAnimationFrame here could get modified by YouTube engine
  1687.         const root = document.documentElement;
  1688.         root.appendChild(n); // throw error if root is null due to exceeding MAX TRIAL
  1689.         if (blobURL) Promise.resolve().then(() => URL.revokeObjectURL(blobURL));
  1690.  
  1691.         removeIframeFn = (setTimeout) => {
  1692.           const removeIframeOnDocumentReady = (e) => {
  1693.             e && win.removeEventListener("DOMContentLoaded", removeIframeOnDocumentReady, false);
  1694.             e = n;
  1695.             n = win = removeIframeFn = 0;
  1696.             setTimeout ? setTimeout(() => e.remove(), 200) : e.remove();
  1697.           }
  1698.           if (!setTimeout || document.readyState !== 'loading') {
  1699.             removeIframeOnDocumentReady();
  1700.           } else {
  1701.             win.addEventListener("DOMContentLoaded", removeIframeOnDocumentReady, false);
  1702.           }
  1703.         }
  1704.       }
  1705.       while (!frame.contentWindow && mx-- > 0) await new Promise(waitFn);
  1706.       const fc = frame.contentWindow;
  1707.       if (!fc) throw "window is not found."; // throw error if root is null due to exceeding MAX TRIAL
  1708.       try {
  1709.         const { requestAnimationFrame, setTimeout, cancelAnimationFrame, setInterval, clearInterval, getComputedStyle } = fc;
  1710.         const res = { requestAnimationFrame, setTimeout, cancelAnimationFrame, setInterval, clearInterval, getComputedStyle };
  1711.         for (let k in res) res[k] = res[k].bind(win); // necessary
  1712.         if (removeIframeFn) Promise.resolve(res.setTimeout).then(removeIframeFn);
  1713.  
  1714.         /** @type {HTMLElement} */
  1715.         const HTMLElementProto = fc.HTMLElement.prototype;
  1716.         /** @type {EventTarget} */
  1717.         const EventTargetProto = fc.EventTarget.prototype;
  1718.         // jsonParseFix = {
  1719.         //   _JSON: fc.JSON, _parse: fc.JSON.parse
  1720.         // }
  1721.         return {
  1722.           ...res,
  1723.           animate: HTMLElementProto.animate,
  1724.           addEventListener: EventTargetProto.addEventListener,
  1725.           removeEventListener: EventTargetProto.removeEventListener
  1726.         };
  1727.       } catch (e) {
  1728.         if (removeIframeFn) removeIframeFn();
  1729.         return null;
  1730.       }
  1731.     } catch (e) {
  1732.       console.warn(e);
  1733.       return null;
  1734.     }
  1735.   };
  1736.  
  1737.   cleanContext(win).then(__CONTEXT__ => {
  1738.     if (!__CONTEXT__) return null;
  1739.  
  1740.     const { requestAnimationFrame, setTimeout, cancelAnimationFrame, setInterval, clearInterval, animate, getComputedStyle, addEventListener, removeEventListener } = __CONTEXT__;
  1741.  
  1742.     const wmComputedStyle = new WeakMap();
  1743.     const getComputedStyleCached = (elem) => {
  1744.         let cs = wmComputedStyle.get(elem);
  1745.         if (!cs) {
  1746.             cs = getComputedStyle(elem);
  1747.             wmComputedStyle.set(elem, cs);
  1748.         }
  1749.         return cs;
  1750.     }
  1751.  
  1752.     let foregroundPromise = null;
  1753.     const foregroundPromiseFn = () => (foregroundPromise = (foregroundPromise || new Promise(resolve => {
  1754.       requestAnimationFrame(() => {
  1755.         foregroundPromise = null;
  1756.         resolve();
  1757.       });
  1758.     })));
  1759.  
  1760.     let playerState = null;
  1761.     let _playerState = null;
  1762.     let lastPlayerProgress = null;
  1763.     let relayCount = 0;
  1764.     let playerEventsByIframeRelay = false;
  1765.     let isPlayProgressTriggered = false;
  1766.     let waitForInitialDataCompletion = 0;
  1767.  
  1768.  
  1769.  
  1770.     let aeConstructor = null;
  1771.  
  1772.     // << __openedChanged82 >>
  1773.     let currentMenuPivotWR = null;
  1774.  
  1775.     // << if DO_PARTICIPANT_LIST_HACKS >>
  1776.     const beforeParticipantsMap = new WeakMap();
  1777.     // << end >>
  1778.  
  1779.  
  1780.  
  1781.     // << if onRegistryReadyForDOMOperations >>
  1782.  
  1783.     let dt0 = Date.now() - 2000;
  1784.     const dateNow = () => Date.now() - dt0;
  1785.     // let lastScroll = 0;
  1786.     // let lastLShow = 0;
  1787.     let lastWheel = 0;
  1788.     let lastMouseDown = 0;
  1789.     let lastMouseUp = 0;
  1790.     let currentMouseDown = false;
  1791.     let lastTouchDown = 0;
  1792.     let lastTouchUp = 0;
  1793.     let currentTouchDown = false;
  1794.     let lastUserInteraction = 0;
  1795.  
  1796.     let scrollChatFn = null;
  1797.  
  1798.     let skipDontRender = true; // true first; false by flushActiveItems_
  1799.     let allowDontRender = null;
  1800.  
  1801.     // ---- #items mutation ----
  1802.     let sk35zResolveFn = null;
  1803.     let firstList = true;
  1804.  
  1805.     // << end >>
  1806.  
  1807.     class RAFHub {
  1808.       constructor() {
  1809.         /** @type {number} */
  1810.         this.startAt = 8170;
  1811.         /** @type {number} */
  1812.         this.counter = 0;
  1813.         /** @type {number} */
  1814.         this.rid = 0;
  1815.         /** @type {Map<number, FrameRequestCallback>} */
  1816.         this.funcs = new Map();
  1817.         const funcs = this.funcs;
  1818.         /** @type {FrameRequestCallback} */
  1819.         this.bCallback = this.mCallback.bind(this);
  1820.         this.pClear = () => funcs.clear();
  1821.         this.keepRAF = false;
  1822.       }
  1823.       /** @param {DOMHighResTimeStamp} highResTime */
  1824.       mCallback(highResTime) {
  1825.         this.rid = 0;
  1826.         Promise.resolve().then(this.pClear);
  1827.         this.funcs.forEach(func => Promise.resolve(highResTime).then(func).catch(console.warn));
  1828.       }
  1829.       /** @param {FrameRequestCallback} f */
  1830.       request(f) {
  1831.         if (this.counter > 1e9) this.counter = 9;
  1832.         let cid = this.startAt + (++this.counter);
  1833.         this.funcs.set(cid, f);
  1834.         if (this.rid === 0) this.rid = requestAnimationFrame(this.bCallback);
  1835.         return cid;
  1836.       }
  1837.       /** @param {number} cid */
  1838.       cancel(cid) {
  1839.         cid = +cid;
  1840.         if (cid > 0) {
  1841.           if (cid <= this.startAt) {
  1842.             return cancelAnimationFrame(cid);
  1843.           }
  1844.           if (this.rid > 0) {
  1845.             this.funcs.delete(cid);
  1846.             if (this.funcs.size === 0 && !this.keepRAF) {
  1847.               cancelAnimationFrame(this.rid);
  1848.               this.rid = 0;
  1849.             }
  1850.           }
  1851.         }
  1852.       }
  1853.     }
  1854.  
  1855.     function basePrefetching() {
  1856.  
  1857.       new Promise(resolve => {
  1858.  
  1859.         if (document.readyState !== 'loading') {
  1860.           resolve();
  1861.         } else {
  1862.           win.addEventListener("DOMContentLoaded", resolve, false);
  1863.         }
  1864.  
  1865.       }).then(() => {
  1866.         const hostL1 = [
  1867.           'https://www.youtube.com', 'https://googlevideo.com',
  1868.           'https://googleapis.com', 'https://accounts.youtube.com',
  1869.           'https://www.gstatic.com', 'https://ggpht.com',
  1870.           'https://yt3.ggpht.com', 'https://yt4.ggpht.com'
  1871.         ];
  1872.  
  1873.         const hostL2 = [
  1874.           'https://youtube.com',
  1875.           'https://fonts.googleapis.com', 'https://fonts.gstatic.com'
  1876.         ];
  1877.  
  1878.         let link = null;
  1879.  
  1880.         function kn() {
  1881.  
  1882.           link = document.createElement('link');
  1883.           if (link.relList && link.relList.supports) {
  1884.             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)
  1885.           } else {
  1886.             kptPF = 0;
  1887.           }
  1888.  
  1889.           groupCollapsed("YouTube Super Fast Chat", " | PREFETCH SUPPORTS");
  1890.           if (ENABLE_BASE_PREFETCHING) console.log('dns-prefetch', (kptPF & 1) ? 'OK' : 'NG');
  1891.           if (ENABLE_BASE_PREFETCHING) console.log('preconnect', (kptPF & 2) ? 'OK' : 'NG');
  1892.           if (ENABLE_PRELOAD_THUMBNAIL) console.log('prefetch', (kptPF & 4) ? 'OK' : 'NG');
  1893.           // console.log('subresource', (kptPF & 8) ? 'OK' : 'NG');
  1894.           if (ENABLE_PRELOAD_THUMBNAIL) console.log('preload', (kptPF & 16) ? 'OK' : 'NG');
  1895.           console.groupEnd();
  1896.  
  1897.         }
  1898.  
  1899.         for (const h of hostL1) {
  1900.  
  1901.           if (kptPF === null) kn();
  1902.           if (ENABLE_BASE_PREFETCHING) {
  1903.             // if (kptPF & 1) {
  1904.             //   linker(link, 'dns-prefetch', h);
  1905.             //   link = null;
  1906.             // }
  1907.             if (kptPF & 2) {
  1908.               linker(link, 'preconnect', h);
  1909.               link = null;
  1910.             }
  1911.           }
  1912.         }
  1913.  
  1914.         for (const h of hostL2) {
  1915.           if (kptPF === null) kn();
  1916.           if (ENABLE_BASE_PREFETCHING) {
  1917.             if (kptPF & 1) {
  1918.               linker(link, 'dns-prefetch', h);
  1919.               link = null;
  1920.             }
  1921.           }
  1922.         }
  1923.  
  1924.       })
  1925.  
  1926.  
  1927.     }
  1928.  
  1929.     if (DO_LINK_PREFETCH) basePrefetching();
  1930.  
  1931.     const { notifyPath7081 } = (() => {
  1932.       // DO_PARTICIPANT_LIST_HACKS
  1933.  
  1934.       const mutexParticipants = new Mutex();
  1935.  
  1936.       let uvid = 0;
  1937.       let r95dm = 0;
  1938.       let c95dm = -1;
  1939.  
  1940.       const foundMap = (base, content) => {
  1941.         /*
  1942.           let lastSearch = 0;
  1943.           let founds = base.map(baseEntry => {
  1944.             let search = content.indexOf(baseEntry, lastSearch);
  1945.             if (search < 0) return false;
  1946.             lastSearch = search + 1;
  1947.             return true;
  1948.           });
  1949.           return founds;
  1950.         */
  1951.         const contentSet = new Set(content);
  1952.         return base.map(baseEntry => contentSet.has(baseEntry));
  1953.  
  1954.       }
  1955.  
  1956.  
  1957.  
  1958.       const spliceIndicesFunc = (beforeParticipants, participants, idsBefore, idsAfter) => {
  1959.  
  1960.         const handler1 = {
  1961.           get(target, prop, receiver) {
  1962.             if (prop === 'object') {
  1963.               return participants; // avoid memory leakage
  1964.             }
  1965.             if (prop === 'type') {
  1966.               return 'splice';
  1967.             }
  1968.             if (prop === '__proxy312__') return 1;
  1969.             return target[prop];
  1970.           }
  1971.         };
  1972.         const releaser = () => {
  1973.           participants = null;
  1974.         }
  1975.  
  1976.         let foundsForAfter = foundMap(idsAfter, idsBefore);
  1977.         let foundsForBefore = foundMap(idsBefore, idsAfter);
  1978.  
  1979.         let indexSplices = [];
  1980.         let contentUpdates = [];
  1981.         for (let i = 0, j = 0; i < foundsForBefore.length || j < foundsForAfter.length;) {
  1982.           if (beforeParticipants[i] === participants[j]) {
  1983.             i++; j++;
  1984.           } else if (idsBefore[i] === idsAfter[j]) {
  1985.             // content changed
  1986.             contentUpdates.push({ indexI: i, indexJ: j })
  1987.             i++; j++;
  1988.           } else {
  1989.             let addedCount = 0;
  1990.             for (let q = j; q < foundsForAfter.length; q++) {
  1991.               if (foundsForAfter[q] === false) addedCount++;
  1992.               else break;
  1993.             }
  1994.             let removedCount = 0;
  1995.             for (let q = i; q < foundsForBefore.length; q++) {
  1996.               if (foundsForBefore[q] === false) removedCount++;
  1997.               else break;
  1998.             }
  1999.             if (!addedCount && !removedCount) {
  2000.               throw 'ERROR(0xFF32): spliceIndicesFunc';
  2001.             }
  2002.             indexSplices.push(new Proxy({
  2003.               index: j,
  2004.               addedCount: addedCount,
  2005.               removed: removedCount >= 1 ? beforeParticipants.slice(i, i + removedCount) : []
  2006.             }, handler1));
  2007.             i += removedCount;
  2008.             j += addedCount;
  2009.           }
  2010.         }
  2011.         foundsForBefore = null;
  2012.         foundsForAfter = null;
  2013.         idsBefore = null;
  2014.         idsAfter = null;
  2015.         beforeParticipants = null;
  2016.         return { indexSplices, contentUpdates, releaser };
  2017.  
  2018.       }
  2019.  
  2020.       /*
  2021.  
  2022.       customElements.get("yt-live-chat-participant-renderer").prototype.notifyPath=function(){  console.log(123);  console.log(new Error().stack)}
  2023.  
  2024.       VM63631:1 Error
  2025.       at customElements.get.notifyPath (<anonymous>:1:122)
  2026.       at e.forwardRendererStamperChanges_ (live_chat_polymer.js:4453:35)
  2027.       at e.rendererStamperApplyChangeRecord_ (live_chat_polymer.js:4451:12)
  2028.       at e.rendererStamperObserver_ (live_chat_polymer.js:4448:149)
  2029.       at Object.pu [as fn] (live_chat_polymer.js:1692:118)
  2030.       at ju (live_chat_polymer.js:1674:217)
  2031.       at a._propertiesChanged (live_chat_polymer.js:1726:122)
  2032.       at b._flushProperties (live_chat_polymer.js:1597:200)
  2033.       at a._invalidateProperties (live_chat_polymer.js:1718:69)
  2034.       at a.notifyPath (live_chat_polymer.js:1741:182)
  2035.  
  2036.       */
  2037.  
  2038.       function convertToIds(participants) {
  2039.         return participants.map(participant => {
  2040.           if (!participant || typeof participant !== 'object') {
  2041.             console.warn('Error(0xFA41): convertToIds', participant);
  2042.             return participant; // just in case
  2043.           }
  2044.           let keys = Object.keys(participant);
  2045.           // liveChatTextMessageRenderer
  2046.           // liveChatParticipantRenderer - livestream channel owner [no authorExternalChannelId]
  2047.           // liveChatPaidMessageRenderer
  2048.           /*
  2049.  
  2050.             'yt-live-chat-participant-renderer' utilizes the following:
  2051.             authorName.simpleText: string
  2052.             authorPhoto.thumbnails: Object{url:string, width:int, height:int} []
  2053.             authorBadges[].liveChatAuthorBadgeRenderer.icon.iconType: string
  2054.             authorBadges[].liveChatAuthorBadgeRenderer.tooltip: string
  2055.             authorBadges[].liveChatAuthorBadgeRenderer.accessibility.accessibilityData: Object{label:string}
  2056.  
  2057.           */
  2058.           if (keys.length !== 1) {
  2059.             console.warn('Error(0xFA42): convertToIds', participant);
  2060.             return participant; // just in case
  2061.           }
  2062.           let key = keys[0];
  2063.           let renderer = (participant[key] || 0);
  2064.           let authorName = (renderer.authorName || 0);
  2065.           let text = `${authorName.simpleText || authorName.text}`
  2066.           let res = participant; // fallback if it is not a vaild entry
  2067.           if (typeof text !== 'string') {
  2068.             console.warn('Error(0xFA53): convertToIds', participant);
  2069.           } else {
  2070.             text = `${renderer.authorExternalChannelId || 'null'}|${text || ''}`;
  2071.             if (text.length > 1) res = text;
  2072.           }
  2073.           return res;
  2074.           // return renderer?`${renderer.id}|${renderer.authorExternalChannelId}`: '';
  2075.           // note: renderer.id will be changed if the user typed something to trigger the update of the participants' record.
  2076.         });
  2077.       }
  2078.  
  2079.       const checkChangeToParticipantRendererContent = CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT ? (p1, p2) => {
  2080.         // just update when content is changed.
  2081.         if (p1.authorName !== p2.authorName) return true;
  2082.         if (p1.authorPhoto !== p2.authorPhoto) return true;
  2083.         if (p1.authorBadges !== p2.authorBadges) return true;
  2084.         return false;
  2085.       } : (p1, p2) => {
  2086.         // keep integrity all the time.
  2087.         return p1 !== p2; // always true
  2088.       }
  2089.  
  2090.       function notifyPath7081(path) { // cnt "yt-live-chat-participant-list-renderer"
  2091.  
  2092.         if (PARTICIPANT_UPDATE_ONLY_ONLY_IF_MODIFICATION_DETECTED) {
  2093.           if (path !== "participantsManager.participants") {
  2094.             return this.__notifyPath5036__.apply(this, arguments);
  2095.           }
  2096.           if (c95dm === r95dm) return;
  2097.         } else {
  2098.           const stack = new Error().stack;
  2099.           if (path !== "participantsManager.participants" || stack.indexOf('.onParticipantsChanged') < 0) {
  2100.             return this.__notifyPath5036__.apply(this, arguments);
  2101.           }
  2102.         }
  2103.  
  2104.         if (uvid > 1e8) uvid = uvid % 100;
  2105.         let tid = ++uvid;
  2106.  
  2107.         const cnt = this; // "yt-live-chat-participant-list-renderer"
  2108.         mutexParticipants.lockWith(lockResolve => {
  2109.  
  2110.           const participants00 = cnt.participantsManager.participants;
  2111.  
  2112.           if (tid !== uvid || typeof (participants00 || 0).splice !== 'function') {
  2113.             lockResolve();
  2114.             return;
  2115.           }
  2116.  
  2117.           let doUpdate = false;
  2118.  
  2119.           if (PARTICIPANT_UPDATE_ONLY_ONLY_IF_MODIFICATION_DETECTED) {
  2120.  
  2121.             if (!participants00.r94dm) {
  2122.               participants00.r94dm = 1;
  2123.               if (++r95dm > 1e9) r95dm = 9;
  2124.               participants00.push = function () {
  2125.                 if (++r95dm > 1e9) r95dm = 9;
  2126.                 return Array.prototype.push.apply(this, arguments);
  2127.               }
  2128.               participants00.pop = function () {
  2129.                 if (++r95dm > 1e9) r95dm = 9;
  2130.                 return Array.prototype.pop.apply(this, arguments);
  2131.               }
  2132.               participants00.shift = function () {
  2133.                 if (++r95dm > 1e9) r95dm = 9;
  2134.                 return Array.prototype.shift.apply(this, arguments);
  2135.               }
  2136.               participants00.unshift = function () {
  2137.                 if (++r95dm > 1e9) r95dm = 9;
  2138.                 return Array.prototype.unshift.apply(this, arguments);
  2139.               }
  2140.               participants00.splice = function () {
  2141.                 if (++r95dm > 1e9) r95dm = 9;
  2142.                 return Array.prototype.splice.apply(this, arguments);
  2143.               }
  2144.               participants00.sort = function () {
  2145.                 if (++r95dm > 1e9) r95dm = 9;
  2146.                 return Array.prototype.sort.apply(this, arguments);
  2147.               }
  2148.               participants00.reverse = function () {
  2149.                 if (++r95dm > 1e9) r95dm = 9;
  2150.                 return Array.prototype.reverse.apply(this, arguments);
  2151.               }
  2152.             }
  2153.  
  2154.             if (c95dm !== r95dm) {
  2155.               c95dm = r95dm;
  2156.               doUpdate = true;
  2157.             }
  2158.  
  2159.           } else {
  2160.             doUpdate = true;
  2161.           }
  2162.  
  2163.           if (!doUpdate) {
  2164.             lockResolve();
  2165.             return;
  2166.           }
  2167.  
  2168.           const participants = participants00.slice(0);
  2169.           const beforeParticipants = beforeParticipantsMap.get(cnt) || [];
  2170.           beforeParticipantsMap.set(cnt, participants);
  2171.  
  2172.           const resPromise = (async () => {
  2173.  
  2174.             if (beforeParticipants.length === 0) {
  2175.               // not error
  2176.               return 0;
  2177.             }
  2178.  
  2179.             let countOfElements = cnt.__getAllParticipantsDOMRenderedLength__()
  2180.  
  2181.             // console.log(participants.length, doms.length) // different if no requestAnimationFrame
  2182.             if (beforeParticipants.length !== countOfElements) {
  2183.               // there is somewrong for the cache. - sometimes happen
  2184.               return 0;
  2185.             }
  2186.  
  2187.             const idsBefore = convertToIds(beforeParticipants);
  2188.             const idsAfter = convertToIds(participants);
  2189.  
  2190.             let { indexSplices, contentUpdates, releaser } = spliceIndicesFunc(beforeParticipants, participants, idsBefore, idsAfter);
  2191.  
  2192.             let res = 1; // default 1 for no update
  2193.  
  2194.             if (indexSplices.length >= 1) {
  2195.  
  2196.  
  2197.               // let p2 =  participants.slice(indexSplices[0].index, indexSplices[0].index+indexSplices[0].addedCount);
  2198.               // let p1 = indexSplices[0].removed;
  2199.               // console.log(indexSplices.length, indexSplices ,p1,p2,  convertToIds(p1),convertToIds(p2))
  2200.  
  2201.               /* folllow
  2202.                   a.notifyPath(c + ".splices", d);
  2203.                   a.notifyPath(c + ".length", b.length);
  2204.               */
  2205.               // stampDomArraySplices_
  2206.  
  2207.  
  2208.               await new Promise(resolve => {
  2209.                 cnt.resolveForDOMRendering781 = resolve;
  2210.  
  2211.                 cnt.__notifyPath5036__("participantsManager.participants.splices", {
  2212.                   indexSplices
  2213.                 });
  2214.                 indexSplices = null;
  2215.                 releaser();
  2216.                 releaser = null;
  2217.                 cnt.__notifyPath5036__("participantsManager.participants.length",
  2218.                   participants.length
  2219.                 );
  2220.  
  2221.               });
  2222.  
  2223.               await Promise.resolve(0); // play safe for the change of 'length'
  2224.               countOfElements = cnt.__getAllParticipantsDOMRenderedLength__();
  2225.  
  2226.               let wrongSize = participants.length !== countOfElements
  2227.               if (wrongSize) {
  2228.                 console.warn("ERROR(0xE2C3): notifyPath7081", beforeParticipants.length, participants.length, doms.length)
  2229.                 return 0;
  2230.               }
  2231.  
  2232.               res = 2 | 4;
  2233.  
  2234.             } else {
  2235.  
  2236.               indexSplices = null;
  2237.               releaser();
  2238.               releaser = null;
  2239.  
  2240.               if (participants.length !== countOfElements) {
  2241.                 // other unhandled cases
  2242.                 return 0;
  2243.               }
  2244.  
  2245.             }
  2246.  
  2247.             // participants.length === countOfElements before contentUpdates
  2248.             if (contentUpdates.length >= 1) {
  2249.               for (const contentUpdate of contentUpdates) {
  2250.                 let isChanged = checkChangeToParticipantRendererContent(beforeParticipants[contentUpdate.indexI], participants[contentUpdate.indexJ]);
  2251.                 if (isChanged) {
  2252.                   cnt.__notifyPath5036__(`participantsManager.participants[${contentUpdate.indexJ}]`);
  2253.                   res |= 4 | 8;
  2254.                 }
  2255.               }
  2256.             }
  2257.             contentUpdates = null;
  2258.  
  2259.             return res;
  2260.  
  2261.  
  2262.           })();
  2263.  
  2264.  
  2265.           resPromise.then(resValue => {
  2266.  
  2267.             const isLogRequired = SHOW_PARTICIPANT_CHANGES_IN_CONSOLE && ((resValue === 0) || ((resValue & 4) === 4));
  2268.             isLogRequired && groupCollapsed("Participant List Change", `tid = ${tid}; res = ${resValue}`);
  2269.             if (resValue === 0) {
  2270.               new Promise(resolve => {
  2271.                 cnt.resolveForDOMRendering781 = resolve;
  2272.                 isLogRequired && console.log("Full Refresh begins");
  2273.                 cnt.__notifyPath5036__("participantsManager.participants"); // full refresh
  2274.               }).then(() => {
  2275.                 isLogRequired && console.log("Full Refresh ends");
  2276.                 console.groupEnd();
  2277.               }).then(lockResolve);
  2278.               return;
  2279.             }
  2280.  
  2281.             const delayLockResolve = (resValue & 4) === 4;
  2282.  
  2283.             if (delayLockResolve) {
  2284.               isLogRequired && console.log(`Number of participants (before): ${beforeParticipants.length}`);
  2285.               isLogRequired && console.log(`Number of participants (after): ${participants.length}`);
  2286.               isLogRequired && console.log(`Total number of rendered participants: ${cnt.__getAllParticipantsDOMRenderedLength__()}`);
  2287.               isLogRequired && console.log(`Participant Renderer Content Updated: ${(resValue & 8) === 8}`);
  2288.               isLogRequired && console.groupEnd();
  2289.               // requestAnimationFrame is required to avoid particiant update during DOM changing (stampDomArraySplices_)
  2290.               // mutex lock with requestAnimationFrame can also disable participants update in background
  2291.               requestAnimationFrame(lockResolve);
  2292.             } else {
  2293.               lockResolve();
  2294.             }
  2295.  
  2296.           });
  2297.  
  2298.         });
  2299.  
  2300.       }
  2301.  
  2302.       return { notifyPath7081 };
  2303.  
  2304.     })();
  2305.  
  2306.     const whenDefinedMultiple = async (tags) => {
  2307.  
  2308.       const sTags = [...new Set(tags)];
  2309.       const len = sTags.length;
  2310.  
  2311.       const pTags = new Array(len);
  2312.       for (let i = 0; i < len; i++) {
  2313.         pTags[i] = customElements.whenDefined(sTags[i]);
  2314.       }
  2315.  
  2316.       await Promise.all(pTags);
  2317.       pTags.length = 0;
  2318.  
  2319.       return sTags;
  2320.  
  2321.     }
  2322.  
  2323.     const onRegistryReadyForDataManipulation = () => {
  2324.  
  2325.       function dummy5035(a, b, c) { }
  2326.       function dummy411(a, b, c) { }
  2327.  
  2328.  
  2329.  
  2330.       customElements.whenDefined("yt-live-chat-participant-list-renderer").then(() => {
  2331.  
  2332.         if (!DO_PARTICIPANT_LIST_HACKS) return;
  2333.  
  2334.         const tag = "yt-live-chat-participant-list-renderer";
  2335.         const cProto = getProto(document.createElement(tag));
  2336.         if (!cProto || typeof cProto.attached !== 'function') {
  2337.           // for _registered, proto.attached shall exist when the element is defined.
  2338.           // for controller extraction, attached shall exist when instance creates.
  2339.           console.warn(`proto.attached for ${tag} is unavailable.`);
  2340.           return;
  2341.         }
  2342.  
  2343.  
  2344.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-participant-list-renderer hacks");
  2345.  
  2346.         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'];
  2347.         const fgs = {};
  2348.         for (const key of fgsArr) fgs[key] = undefined;
  2349.  
  2350.         try {
  2351.           const EXPERIMENT_FLAGS = ytcfg.data_.EXPERIMENT_FLAGS;
  2352.           for (const key of fgsArr) fgs[key] = EXPERIMENT_FLAGS[key];
  2353.         } catch (e) { }
  2354.         console.log(`EXPERIMENT_FLAGS: ${JSON.stringify(fgs, null, 2)}`);
  2355.  
  2356.         const canDoReplacement = (() => {
  2357.           if (typeof cProto.__notifyPath5035__ === 'function' && cProto.__notifyPath5035__.name !== 'dummy5035') {
  2358.             console.warn('YouTube Live Chat Tamer is running.');
  2359.             return;
  2360.           }
  2361.  
  2362.           if (typeof cProto.__attached411__ === 'function' && cProto.__attached411__.name !== 'dummy411') {
  2363.             console.warn('YouTube Live Chat Tamer is running.');
  2364.             return;
  2365.           }
  2366.  
  2367.           cProto.__notifyPath5035__ = dummy5035 // just to against Live Chat Tamer
  2368.           cProto.__attached411__ = dummy411 // just to against Live Chat Tamer
  2369.  
  2370.           if (typeof cProto.flushRenderStamperComponentBindings_ !== 'function' || cProto.flushRenderStamperComponentBindings_.length !== 0) {
  2371.             console.warn("ERROR(0xE355): cProto.flushRenderStamperComponentBindings_ not found");
  2372.             return;
  2373.           }
  2374.  
  2375.           if (typeof cProto.flushRenderStamperComponentBindings66_ === 'function') {
  2376.             console.warn("ERROR(0xE356): cProto.flushRenderStamperComponentBindings66_");
  2377.             return;
  2378.           }
  2379.  
  2380.           if (typeof cProto.__getAllParticipantsDOMRenderedLength__ === 'function') {
  2381.             console.warn("ERROR(0xE357): cProto.__getAllParticipantsDOMRenderedLength__");
  2382.             return;
  2383.           }
  2384.           return true;
  2385.         })();
  2386.  
  2387.         console.log(`Data Manipulation Boost = ${canDoReplacement}`);
  2388.  
  2389.         assertor(() => fnIntegrity(cProto.attached, '0.32.22')) // just warning
  2390.         if (typeof cProto.flushRenderStamperComponentBindings_ === 'function') {
  2391.           const fiRSCB = fnIntegrity(cProto.flushRenderStamperComponentBindings_);
  2392.           const s = fiRSCB.split('.');
  2393.           // Feb 2024: 0.403.247 => NG
  2394.           // if (s[0] === '0' && +s[1] > 381 && +s[1] < 391 && +s[2] > 228 && +s[2] < 238) {
  2395.           //   console.log(`flushRenderStamperComponentBindings_ ### ${fiRSCB} ### - OK`);
  2396.           // } else {
  2397.           //   console.log(`flushRenderStamperComponentBindings_ ### ${fiRSCB} ### - NG`);
  2398.           // }
  2399.           console.log(`flushRenderStamperComponentBindings_ ### ${fiRSCB} ###`);
  2400.         } else {
  2401.           console.log("flushRenderStamperComponentBindings_ - not found");
  2402.         }
  2403.         // assertor(() => fnIntegrity(cProto.flushRenderStamperComponentBindings_, '0.386.233')) // just warning
  2404.  
  2405.         if (typeof cProto.flushRenderStamperComponentBindings_ === 'function') {
  2406.           cProto.flushRenderStamperComponentBindings66_ = cProto.flushRenderStamperComponentBindings_;
  2407.           cProto.flushRenderStamperComponentBindings_ = function () {
  2408.             // console.log('flushRenderStamperComponentBindings_')
  2409.             this.flushRenderStamperComponentBindings66_();
  2410.             if (this.resolveForDOMRendering781) {
  2411.               this.resolveForDOMRendering781();
  2412.               this.resolveForDOMRendering781 = null;
  2413.             }
  2414.           };
  2415.         }
  2416.  
  2417.         cProto.__getAllParticipantsDOMRenderedLength__ = function () {
  2418.           const container = ((this || 0).$ || 0).participants;
  2419.           if (!container) return 0;
  2420.           return HTMLElement.prototype.querySelectorAll.call(container, 'yt-live-chat-participant-renderer').length;
  2421.         }
  2422.  
  2423.         const onPageElements = [...document.querySelectorAll('yt-live-chat-participant-list-renderer:not(.n9fJ3)')];
  2424.  
  2425.         cProto.__attached412__ = cProto.attached;
  2426.         const fpPList = function (hostElement) {
  2427.           const cnt = insp(hostElement);
  2428.           if (beforeParticipantsMap.has(cnt)) return;
  2429.           hostElement.classList.add('n9fJ3');
  2430.  
  2431.           assertor(() => (cnt.__dataEnabled === true && cnt.__dataReady === true));
  2432.           if (typeof cnt.notifyPath !== 'function' || typeof cnt.__notifyPath5036__ !== 'undefined') {
  2433.             console.warn("ERROR(0xE318): yt-live-chat-participant-list-renderer")
  2434.             return;
  2435.           }
  2436.  
  2437.           groupCollapsed("Participant List attached", "");
  2438.           // cnt.$.participants.appendChild = cnt.$.participants.__shady_native_appendChild =  function(){
  2439.           //   console.log(123, 'appendChild');
  2440.           //   return HTMLElement.prototype.appendChild.apply(this, arguments)
  2441.           // }
  2442.  
  2443.           // cnt.$.participants.insertBefore =cnt.$.participants.__shady_native_insertBefore =  function(){
  2444.           //   console.log(123, 'insertBefore');
  2445.           //   return HTMLElement.prototype.insertBefore.apply(this, arguments)
  2446.           // }
  2447.  
  2448.           cnt.__notifyPath5036__ = cnt.notifyPath
  2449.           const participants = ((cnt.participantsManager || 0).participants || 0);
  2450.           assertor(() => (participants.length > -1 && typeof participants.slice === 'function'));
  2451.           console.log(`initial number of participants: ${participants.length}`);
  2452.           const newParticipants = (participants.length >= 1 && typeof participants.slice === 'function') ? participants.slice(0) : [];
  2453.           beforeParticipantsMap.set(cnt, newParticipants);
  2454.           cnt.notifyPath = notifyPath7081;
  2455.           console.log(`CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT = ${CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT}`);
  2456.           console.groupEnd();
  2457.         }
  2458.         cProto.attached = function () {
  2459.           fpPList(this.hostElement || this);
  2460.           this.__attached412__.apply(this, arguments);
  2461.         };
  2462.  
  2463.  
  2464.         if (ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST) {
  2465.  
  2466.           /** @type {boolean | (()=>boolean)} */
  2467.           let toUseMaintainStableList = USE_MAINTAIN_STABLE_LIST_ONLY_WHEN_KS_FLAG_IS_SET ? (() => ytcfg.data_.EXPERIMENT_FLAGS.kevlar_should_maintain_stable_list === true) : true;
  2468.           if (typeof cProto.stampDomArray_ === 'function' && cProto.stampDomArray_.length === 6 && !cProto.stampDomArray_.nIegT && !cProto.stampDomArray66_) {
  2469.  
  2470.             let lastMessageDate = 0;
  2471.             cProto.stampDomArray66_ = cProto.stampDomArray_;
  2472.  
  2473.             cProto.stampDomArray_ = function (...args) {
  2474.               if (args[0] && args[0].length > 0 && args[1] === "participants" && args[2] && args[3] === true && !args[5]) {
  2475.                 if (typeof toUseMaintainStableList === 'function') {
  2476.                   toUseMaintainStableList = toUseMaintainStableList();
  2477.                 }
  2478.                 args[5] = toUseMaintainStableList;
  2479.                 let currentDate = Date.now();
  2480.                 if (currentDate - lastMessageDate > 440) {
  2481.                   lastMessageDate = currentDate;
  2482.                   console.log('maintain_stable_list for participants list', toUseMaintainStableList);
  2483.                 }
  2484.               }
  2485.               return this.stampDomArray66_.apply(this, args);
  2486.             }
  2487.  
  2488.             cProto.stampDomArray_.nIegT = 1;
  2489.  
  2490.           }
  2491.           console.log(`ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST - YES`);
  2492.         } else {
  2493.           console.log(`ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST - NO`);
  2494.         }
  2495.  
  2496.         console.groupEnd();
  2497.  
  2498.         if (onPageElements.length >= 1) {
  2499.           for (const s of onPageElements) {
  2500.             if (insp(s).isAttached === true) {
  2501.               fpPList(s);
  2502.             }
  2503.           }
  2504.         }
  2505.  
  2506.       }).catch(console.warn);
  2507.  
  2508.     };
  2509.  
  2510.     if (DO_PARTICIPANT_LIST_HACKS) {
  2511.       promiseForCustomYtElementsReady.then(onRegistryReadyForDataManipulation);
  2512.     }
  2513.  
  2514.  
  2515.  
  2516.     const rafHub = (ENABLE_RAF_HACK_TICKERS || ENABLE_RAF_HACK_DOCKED_MESSAGE || ENABLE_RAF_HACK_INPUT_RENDERER || ENABLE_RAF_HACK_EMOJI_PICKER) ? new RAFHub() : null;
  2517.  
  2518.  
  2519.     const fixChildrenIssue = !!fixChildrenIssue801;
  2520.     if (fixChildrenIssue && typeof Object.getOwnPropertyDescriptor === 'function' && typeof Proxy !== 'undefined') {
  2521.       const divProto = HTMLDivElement.prototype;
  2522.       const polymerControllerSetData3 = function (c, d, e) {
  2523.         return insp(this).set(c, d, e);
  2524.       }
  2525.       const polymerControllerSetData2 = function (c, d) {
  2526.         return insp(this).set(c, d);
  2527.       }
  2528.       const dummyFn = function () {
  2529.         console.log('dummyFn', ...arguments);
  2530.       };
  2531.  
  2532.       const wm44 = new Map();
  2533.       function unPolymerSet(elem) {
  2534.         const is = elem.is;
  2535.         if (is && !elem.set) {
  2536.           let rt = wm44.get(is);
  2537.           if (!rt) {
  2538.             rt = 1;
  2539.             const cnt = insp(elem);
  2540.             if (cnt !== elem && cnt && typeof cnt.set === 'function') {
  2541.               const pcSet = cnt.constructor.prototype.set;
  2542.               if (pcSet && typeof pcSet === 'function' && pcSet.length === 3) {
  2543.                 rt = polymerControllerSetData3;
  2544.               } else if (pcSet && typeof pcSet === 'function' && pcSet.length === 2) {
  2545.                 rt = polymerControllerSetData2;
  2546.               }
  2547.             }
  2548.             wm44.set(is, rt);
  2549.           }
  2550.           if (typeof rt === 'function') {
  2551.             elem.set = rt;
  2552.           } else {
  2553.             elem.set = dummyFn;
  2554.           }
  2555.         }
  2556.       }
  2557.       if (!divProto.__children577__ && !divProto.__children578__) {
  2558.  
  2559.         const dp = Object.getOwnPropertyDescriptor(Element.prototype, 'children');
  2560.         const dp2 = Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'children');
  2561.         const dp3 = Object.getOwnPropertyDescriptor(divProto, 'children');
  2562.  
  2563.         if (dp && dp.configurable === true && dp.enumerable === true && typeof dp.get === 'function' && !dp2 && !dp3) {
  2564.  
  2565.           if (divProto instanceof HTMLElement && divProto instanceof Element) {
  2566.  
  2567.             let m = Object.assign({}, dp);
  2568.             divProto.__children577__ = dp.get;
  2569.             divProto.__children578__ = function () {
  2570.               if (this.__children803__) return this.__children803__;
  2571.               if (this.__children801__) {
  2572.                 let arr = [];
  2573.                 for (let elem = this.firstElementChild; elem !== null; elem = elem.nextElementSibling) {
  2574.                   if (elem.is) {
  2575.                     unPolymerSet(elem);
  2576.                     arr.push(elem);
  2577.                   }
  2578.                 }
  2579.                 if (this.__children801__ === 2) this.__children803__ = arr;
  2580.                 return arr;
  2581.               }
  2582.               return 577;
  2583.             };
  2584.             m.get = function () {
  2585.               const r = this.__children578__();
  2586.               if (r !== 577) return r;
  2587.               return this.__children577__();
  2588.             };
  2589.             Object.defineProperty(divProto, 'children', m);
  2590.  
  2591.             console.log('fixChildrenIssue - set OK')
  2592.  
  2593.           }
  2594.         }
  2595.  
  2596.       }
  2597.  
  2598.  
  2599.     }
  2600.  
  2601.  
  2602.     const bnForDelayChatOccurrence = () => {
  2603.  
  2604.       document.addEventListener('animationstart', (evt) => {
  2605.  
  2606.         if (evt.animationName === 'dontRenderAnimation') {
  2607.           evt.target.classList.remove('dont-render');
  2608.           if (scrollChatFn) scrollChatFn();
  2609.         }
  2610.  
  2611.       }, true);
  2612.  
  2613.       const f = (elm) => {
  2614.         if (elm && elm.nodeType === 1) {
  2615.           if (!skipDontRender && allowDontRender === true) {
  2616.             // innerTextFixFn();
  2617.             elm.classList.add('dont-render');
  2618.           }
  2619.         }
  2620.       }
  2621.  
  2622.       Node.prototype.__appendChild931__ = function (a) {
  2623.         a = dr(a);
  2624.         if (this.id === 'items' && this.classList.contains('yt-live-chat-item-list-renderer')) {
  2625.           if (a && a.nodeType === 1) f(a);
  2626.           else if (a instanceof DocumentFragment) {
  2627.             for (let n = a.firstChild; n; n = n.nextSibling) {
  2628.               f(n);
  2629.             }
  2630.           }
  2631.         }
  2632.       }
  2633.  
  2634.       Node.prototype.__appendChild932__ = function () {
  2635.         this.__appendChild931__.apply(this, arguments);
  2636.         return Node.prototype.appendChild.apply(this, arguments);
  2637.       }
  2638.  
  2639.  
  2640.     };
  2641.  
  2642.     const watchUserCSS = () => {
  2643.  
  2644.       // if (!CSS.supports('contain-intrinsic-size', 'auto var(--wsr94)')) return;
  2645.  
  2646.       const getElemFromWR = (nr) => {
  2647.         const n = kRef(nr);
  2648.         if (n && n.isConnected) return n;
  2649.         return null;
  2650.       }
  2651.  
  2652.       const clearContentVisibilitySizing = () => {
  2653.         Promise.resolve().then(() => {
  2654.  
  2655.           const e = document.querySelector('#show-more[disabled]');
  2656.           let btnShowMoreWR = e ? mWeakRef(e) : null;
  2657.  
  2658.           let lastVisibleItemWR = null;
  2659.           for (const elm of document.querySelectorAll('[wSr93]')) {
  2660.             if (elm.getAttribute('wSr93') === 'visible') lastVisibleItemWR = mWeakRef(elm);
  2661.             elm.setAttribute('wSr93', '');
  2662.             // custom CSS property --wsr94 not working when attribute wSr93 removed
  2663.           }
  2664.           requestAnimationFrame(() => {
  2665.             const btnShowMore = getElemFromWR(btnShowMoreWR); btnShowMoreWR = null;
  2666.             if (btnShowMore) btnShowMore.click();
  2667.             else {
  2668.               // would not work if switch it frequently
  2669.               const lastVisibleItem = getElemFromWR(lastVisibleItemWR); lastVisibleItemWR = null;
  2670.               if (lastVisibleItem) {
  2671.  
  2672.                 Promise.resolve()
  2673.                   .then(() => lastVisibleItem.scrollIntoView())
  2674.                   .then(() => lastVisibleItem.scrollIntoView(false))
  2675.                   .then(() => lastVisibleItem.scrollIntoView({ behavior: "instant", block: "end", inline: "nearest" }))
  2676.                   .catch(e => { }) // break the chain when method not callable
  2677.  
  2678.               }
  2679.             }
  2680.           });
  2681.  
  2682.         });
  2683.  
  2684.       }
  2685.  
  2686.       const mutObserver = new MutationObserver((mutations) => {
  2687.         for (const mutation of mutations) {
  2688.           if ((mutation.addedNodes || 0).length >= 1) {
  2689.             for (const addedNode of mutation.addedNodes) {
  2690.               if (addedNode.nodeName === 'STYLE') {
  2691.                 clearContentVisibilitySizing();
  2692.                 return;
  2693.               }
  2694.             }
  2695.           }
  2696.           if ((mutation.removedNodes || 0).length >= 1) {
  2697.             for (const removedNode of mutation.removedNodes) {
  2698.               if (removedNode.nodeName === 'STYLE') {
  2699.                 clearContentVisibilitySizing();
  2700.                 return;
  2701.               }
  2702.             }
  2703.           }
  2704.         }
  2705.       });
  2706.  
  2707.       mutObserver.observe(document.documentElement, {
  2708.         childList: true,
  2709.         subtree: false
  2710.       });
  2711.       mutObserver.observe(document.head, {
  2712.         childList: true,
  2713.         subtree: false
  2714.       });
  2715.       mutObserver.observe(document.body, {
  2716.         childList: true,
  2717.         subtree: false
  2718.       });
  2719.  
  2720.     }
  2721.  
  2722.  
  2723.     class WillChangeController {
  2724.       constructor(itemScroller, willChangeValue) {
  2725.         this.element = itemScroller;
  2726.         this.counter = 0;
  2727.         this.active = false;
  2728.         this.willChangeValue = willChangeValue;
  2729.       }
  2730.  
  2731.       beforeOper() {
  2732.         if (!this.active) {
  2733.           this.active = true;
  2734.           this.element.style.willChange = this.willChangeValue;
  2735.         }
  2736.         this.counter++;
  2737.       }
  2738.  
  2739.       afterOper() {
  2740.         const c = this.counter;
  2741.         requestAnimationFrame(() => {
  2742.           if (c === this.counter) {
  2743.             this.active = false;
  2744.             this.element.style.willChange = '';
  2745.           }
  2746.         });
  2747.       }
  2748.  
  2749.       release() {
  2750.         const element = this.element;
  2751.         this.element = null;
  2752.         this.counter = 1e16;
  2753.         this.active = false;
  2754.         try {
  2755.           element.style.willChange = '';
  2756.         } catch (e) { }
  2757.       }
  2758.  
  2759.     }
  2760.  
  2761.  
  2762.     const skzData = (skz) => skz.data = {
  2763.       "message": {
  2764.         "runs": [
  2765.           {
  2766.             "text": "em2o"
  2767.           },
  2768.           {
  2769.             "emoji": {
  2770.               "emojiId": "cm35z",
  2771.               "shortcuts": [
  2772.                 ":_s:",
  2773.                 ":s:"
  2774.               ],
  2775.               "searchTerms": [
  2776.                 "_s",
  2777.                 "s"
  2778.               ],
  2779.               "image": {
  2780.                 "thumbnails": [
  2781.                   {
  2782.                     "url": dummyImgURL,
  2783.                     "width": 48,
  2784.                     "height": 48
  2785.                   }
  2786.                 ],
  2787.                 "accessibility": {
  2788.                   "accessibilityData": {
  2789.                     "label": "s"
  2790.                   }
  2791.                 }
  2792.               },
  2793.               "isCustomEmoji": true
  2794.             }
  2795.           },
  2796.           {
  2797.             "text": "ji"
  2798.           }
  2799.         ]
  2800.       },
  2801.       "authorName": {
  2802.         "simpleText": "N"
  2803.       },
  2804.       "authorPhoto": {
  2805.         "thumbnails": [
  2806.           {
  2807.             "url": dummyImgURL,
  2808.             "width": 64,
  2809.             "height": 64
  2810.           }
  2811.         ]
  2812.       },
  2813.       "contextMenuEndpoint": {
  2814.         "commandMetadata": {
  2815.           "webCommandMetadata": {
  2816.             "ignoreNavigation": true
  2817.           }
  2818.         },
  2819.         "liveChatItemContextMenuEndpoint": {
  2820.           "params": "123=="
  2821.         }
  2822.       },
  2823.       "id": "sk35z",
  2824.       "timestampUsec": "1232302352350000",
  2825.       "authorBadges": [
  2826.         {
  2827.           "liveChatAuthorBadgeRenderer": {
  2828.             "customThumbnail": {
  2829.               "thumbnails": [
  2830.                 {
  2831.                   "url": dummyImgURL,
  2832.                   "width": 16,
  2833.                   "height": 16
  2834.                 },
  2835.                 {
  2836.                   "url": dummyImgURL,
  2837.                   "width": 32,
  2838.                   "height": 32
  2839.                 }
  2840.               ]
  2841.             },
  2842.             "tooltip": "T",
  2843.             "accessibility": {
  2844.               "accessibilityData": {
  2845.                 "label": "E"
  2846.               }
  2847.             }
  2848.           }
  2849.         }
  2850.       ],
  2851.       "authorExternalChannelId": "A",
  2852.       "contextMenuAccessibility": {
  2853.         "accessibilityData": {
  2854.           "label": "E"
  2855.         }
  2856.       },
  2857.       "timestampText": {
  2858.         "simpleText": "0:43"
  2859.       }
  2860.     };
  2861.  
  2862.  
  2863.  
  2864.     const { lcRendererElm, visObserver } = (() => {
  2865.  
  2866.  
  2867.  
  2868.       let lcRendererWR = null;
  2869.  
  2870.       const lcRendererElm = () => {
  2871.         let lcRenderer = kRef(lcRendererWR);
  2872.         if (!lcRenderer || !lcRenderer.isConnected) {
  2873.           lcRenderer = document.querySelector('yt-live-chat-item-list-renderer.yt-live-chat-renderer');
  2874.           lcRendererWR = lcRenderer ? mWeakRef(lcRenderer) : null;
  2875.         }
  2876.         return lcRenderer;
  2877.       };
  2878.  
  2879.  
  2880.       let hasFirstShowMore = false;
  2881.  
  2882.       const visObserverFn = (entry) => {
  2883.  
  2884.         const target = entry.target;
  2885.         if (!target) return;
  2886.         // if(target.classList.contains('dont-render')) return;
  2887.         let isVisible = entry.isIntersecting === true && entry.intersectionRatio > 0.5;
  2888.         // const h = entry.boundingClientRect.height;
  2889.         /*
  2890.         if (h < 16) { // wrong: 8 (padding/margin); standard: 32; test: 16 or 20
  2891.             // e.g. under fullscreen. the element created but not rendered.
  2892.             target.setAttribute('wSr93', '');
  2893.             return;
  2894.         }
  2895.         */
  2896.         if (isVisible) {
  2897.           // target.style.setProperty('--wsr94', h + 'px');
  2898.           target.setAttribute('wSr93', 'visible');
  2899.           if (nNextElem(target) === null) {
  2900.  
  2901.             // firstVisibleItemDetected = true;
  2902.             /*
  2903.               if (dateNow() - lastScroll < 80) {
  2904.                   lastLShow = 0;
  2905.                   lastScroll = 0;
  2906.                   Promise.resolve().then(clickShowMore);
  2907.               } else {
  2908.                   lastLShow = dateNow();
  2909.               }
  2910.               */
  2911.             // lastLShow = dateNow();
  2912.           } else if (!hasFirstShowMore) { // should more than one item being visible
  2913.             // implement inside visObserver to ensure there is sufficient delay
  2914.             hasFirstShowMore = true;
  2915.             requestAnimationFrame(() => {
  2916.               // foreground page
  2917.               // page visibly ready -> load the latest comments at initial loading
  2918.               const lcRenderer = lcRendererElm();
  2919.               if (lcRenderer) {
  2920.                 if (typeof window.nextBrowserTick !== 'function') {
  2921.                   insp(lcRenderer).scrollToBottom_();
  2922.                 } else {
  2923.                   nextBrowserTick(() => {
  2924.                     const cnt = insp(lcRenderer);
  2925.                     if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  2926.                     cnt.scrollToBottom_();
  2927.                   });
  2928.                 }
  2929.               }
  2930.             });
  2931.           }
  2932.         }
  2933.         else if (target.getAttribute('wSr93') === 'visible') { // ignore target.getAttribute('wSr93') === '' to avoid wrong sizing
  2934.  
  2935.           // target.style.setProperty('--wsr94', h + 'px');
  2936.           target.setAttribute('wSr93', 'hidden');
  2937.         } // note: might consider 0 < entry.intersectionRatio < 0.5 and target.getAttribute('wSr93') === '' <new last item>
  2938.  
  2939.       }
  2940.  
  2941.  
  2942.  
  2943.       const visObserver = new IntersectionObserver((entries) => {
  2944.  
  2945.         for (const entry of entries) {
  2946.  
  2947.           Promise.resolve(entry).then(visObserverFn);
  2948.  
  2949.         }
  2950.  
  2951.       }, {
  2952.         // root: HTMLElement.prototype.closest.call(m2, '#item-scroller.yt-live-chat-item-list-renderer'), // nullable
  2953.         rootMargin: "0px",
  2954.         threshold: [0.05, 0.95],
  2955.       });
  2956.  
  2957.  
  2958.       return { lcRendererElm, visObserver }
  2959.  
  2960.  
  2961.     })();
  2962.  
  2963.     const { setupMutObserver } = (() => {
  2964.  
  2965.       async function asyncTickerBackgroundOverridedChecker() {
  2966.  
  2967.         try {
  2968.           await promiseForCustomYtElementsReady.then();
  2969.           await customElements.whenDefined('yt-live-chat-text-message-renderer');
  2970.           await new Promise(r => setTimeout(r, 800));
  2971.  
  2972.           if (!hasTimerModified) return;
  2973.           const tickerRenderer = document.querySelector('#ticker yt-live-chat-ticker-renderer.style-scope.yt-live-chat-renderer');
  2974.           if (!tickerRenderer) return;
  2975.  
  2976.           const tickerRendererDollar = indr(tickerRenderer);
  2977.           const items = (tickerRendererDollar || 0).items || 0;
  2978.           if (!items) return;
  2979.           const template = document.createElement('template');
  2980.           template.innerHTML = `<yt-live-chat-ticker-dummy777-item-renderer class="style-scope yt-live-chat-ticker-renderer" whole-message-clickable=""
  2981.             modern="" aria-label="¥1,000" role="button" tabindex="0" id="Chw777" style="width: 94px; overflow: hidden;"
  2982.             dimmed="" [dummy777]>
  2983.             <div id="container" dir="ltr" class="style-scope yt-live-chat-ticker-dummy777-item-renderer"
  2984.               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));">
  2985.               <div id="content" class="style-scope yt-live-chat-ticker-dummy777-item-renderer" style="color: rgb(255, 255, 255);">
  2986.                 <yt-img-shadow777 id="author-photo" height="24" width="24"
  2987.                   class="style-scope yt-live-chat-ticker-dummy777-item-renderer no-transition"
  2988.                   style="background-color: transparent;" loaded=""><img id="img"
  2989.                     draggable="false" class="style-scope yt-img-shadow" alt="I" height="24" width="24"
  2990.                     src="${dummyImgURL}"></yt-img-shadow777>
  2991.  
  2992.                 <span id="text" dir="ltr" class="style-scope yt-live-chat-ticker-dummy777-item-renderer">¥1,000</span>
  2993.               </div>
  2994.             </div>
  2995.           </yt-live-chat-ticker-dummy777-item-renderer>`;
  2996.           const dummy777 = template.content.firstElementChild;
  2997.           await Promise.resolve().then();
  2998.           let res = 0;
  2999.           if (items instanceof HTMLElement && items.isConnected === true) {
  3000.             try {
  3001.               items.appendChild(dummy777);
  3002.               let container = HTMLElement.prototype.querySelector.call(dummy777, '#container') || 0;
  3003.               if (container.isConnected === true) {
  3004.                 const evaluated = `${getComputedStyleCached(container).background}`;
  3005.                 container = null;
  3006.                 res = evaluated.indexOf('0.') < 4 ? 1 : 2;
  3007.               }
  3008.             } catch (e) { console.warn(e) }
  3009.             HTMLElement.prototype.remove.call(dummy777);
  3010.           }
  3011.           await Promise.resolve().then();
  3012.           dummy777.textContent = '';
  3013.           if (res === 1) {
  3014.             // not fulfilling
  3015.             // rgba(0, 0, 0, 0.004) none repeat scroll 0% 0% / auto padding-box border-box
  3016.             console.groupCollapsed(`%c${"YouTube Super Fast Chat"}%c${" | Incompatibility Found"}`,
  3017.               "background-color: #010502; color: #fe806a; font-weight: 700; padding: 2px;",
  3018.               "background-color: #010502; color: #fe806a; font-weight: 300; padding: 2px;"
  3019.             );
  3020.             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');
  3021.             console.groupEnd();
  3022.             console.log('%cALLOW_ADVANCED_ANIMATED_TICKER_BACKGROUND (Overriding other scripting)', 'background-color: #7eb32b; color: #102624; padding: 2px 4px');
  3023.           } else if (res === 2) {
  3024.             console.log('%cALLOW_ADVANCED_ANIMATED_TICKER_BACKGROUND', 'background-color: #16c450; color: #102624; padding: 2px 4px');
  3025.           }
  3026.         } catch (e) {
  3027.           console.warn(e);
  3028.         }
  3029.       }
  3030.  
  3031.       async function asyncDelayChatOccurrence(m2) {
  3032.         try {
  3033.           await promiseForCustomYtElementsReady.then();
  3034.           await customElements.whenDefined('yt-live-chat-text-message-renderer');
  3035.           await new Promise(r => setTimeout(r, 1));
  3036.           const dummy888 = document.createElement('yt-live-chat-text-message-renderer');
  3037.           // const template = document.createElement('template');
  3038.           // template.innerHTML = "<yt-live-chat-text-message-renderer></yt-live-chat-text-message-renderer>"
  3039.           // const dummy888 = template.content.firstElementChild;
  3040.           const skzCnt = insp(dummy888);
  3041.           if (!(skzCnt && 'data' in skzCnt && 'attached' in skzCnt)) {
  3042.             return;
  3043.           }
  3044.           if (!skzCnt.hostElement) skzCnt.hostElement = dummy888;
  3045.           /** @type {HTMLTemplateElement} */
  3046.           const skzElem = dummy888;
  3047.           let cz1 = null;
  3048.           const deferredZy1 = new Promise(resolve => {
  3049.             skzCnt.attached = function () {
  3050.               cz1 = HTMLElement.prototype.querySelector.call(skzElem, '#message img') !== null;
  3051.               resolve(skzElem.textContent);
  3052.             }
  3053.             skzCnt.detached = function () {
  3054.             }
  3055.           });
  3056.           skzElem.id = 'sk35z';
  3057.           skzData(skzCnt);
  3058.           sk35zResolveFn = null;
  3059.           const deferredMutation = new Promise(resolve => {
  3060.             sk35zResolveFn = resolve;
  3061.             HTMLElement.prototype.appendChild.call(m2, skzElem);
  3062.           });
  3063.           const [zy1, _] = await Promise.all([deferredZy1, deferredMutation]);
  3064.           skzCnt.attached = function () { };
  3065.           function fn() {
  3066.             const zy2 = skzElem.textContent;
  3067.             const cz2 = HTMLElement.prototype.querySelector.call(skzElem, '#message img') !== null;
  3068.             if (typeof zy1 === 'string' && typeof zy2 === 'string') {
  3069.               allowDontRender = zy1 === zy2 && cz1 === cz2; // '0:43N​em2oji'
  3070.             }
  3071.             if (allowDontRender === true) return true;
  3072.             if (allowDontRender === false) {
  3073.               console.groupCollapsed(`%c${"YouTube Super Fast Chat"}%c${" | Incompatibility Found"}`,
  3074.                 "background-color: #010502; color: #fe806a; font-weight: 700; padding: 2px;",
  3075.                 "background-color: #010502; color: #fe806a; font-weight: 300; padding: 2px;"
  3076.               );
  3077.               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');
  3078.               console.groupEnd();
  3079.             }
  3080.           }
  3081.           await new Promise(r => setTimeout(r, 1));
  3082.           if (!fn()) return;
  3083.           await new Promise(r => requestAnimationFrame(r));
  3084.           if (!fn()) return;
  3085.           skzElem.remove();
  3086.           await Promise.resolve().then();
  3087.           skzElem.textContent = '';
  3088.           console.log('%cALLOW_DELAYED_CHAT_OCCURRENCE', 'background-color: #16c450; color: #102624; padding: 2px 4px');
  3089.         } catch (e) {
  3090.           console.warn(e);
  3091.         }
  3092.       }
  3093.  
  3094.       const mutFn = (items) => {
  3095.         for (let node = nLastElem(items); node !== null; node = nPrevElem(node)) {
  3096.           if (node.hasAttribute('wSr93')) break;
  3097.           node.setAttribute('wSr93', '');
  3098.           visObserver.observe(node);
  3099.         }
  3100.       }
  3101.  
  3102.       const mutObserver = new MutationObserver((mutations) => {
  3103.         const items = (mutations[0] || 0).target;
  3104.         if (!items) return;
  3105.         if (sk35zResolveFn) {
  3106.           sk35zResolveFn();
  3107.           sk35zResolveFn = null;
  3108.         }
  3109.         mutFn(items);
  3110.       });
  3111.  
  3112.       const setupMutObserver = (m2) => {
  3113.         scrollChatFn = null;
  3114.         mutObserver.disconnect();
  3115.         mutObserver.takeRecords();
  3116.         if (m2) {
  3117.           ENABLE_DELAYED_CHAT_OCCURRENCE && bnForDelayChatOccurrence();
  3118.           if (typeof m2.__appendChild932__ === 'function') {
  3119.             if (typeof m2.appendChild === 'function') m2.appendChild = m2.__appendChild932__;
  3120.             if (typeof m2.__shady_native_appendChild === 'function') m2.__shady_native_appendChild = m2.__appendChild932__;
  3121.           }
  3122.           mutObserver.observe(m2, {
  3123.             childList: true,
  3124.             subtree: false
  3125.           });
  3126.           mutFn(m2);
  3127.  
  3128.           const isFirstList = firstList;
  3129.           firstList = false;
  3130.  
  3131.           if (ENABLE_OVERFLOW_ANCHOR) {
  3132.  
  3133.             let items = m2;
  3134.             let addedAnchor = false;
  3135.             if (items) {
  3136.               if (items.nextElementSibling === null) {
  3137.                 items.classList.add('no-anchor');
  3138.                 addedAnchor = true;
  3139.                 items.parentNode.appendChild(dr(document.createElement('item-anchor')));
  3140.               }
  3141.             }
  3142.  
  3143.  
  3144.  
  3145.             if (addedAnchor) {
  3146.               nodeParent(m2).classList.add('no-anchor'); // required
  3147.             }
  3148.  
  3149.           }
  3150.  
  3151.           // let div = document.createElement('div');
  3152.           // div.id = 'qwcc';
  3153.           // HTMLElement.prototype.appendChild.call(document.querySelector('yt-live-chat-item-list-renderer'), div )
  3154.           // bufferRegion =div;
  3155.  
  3156.           // buffObserver.takeRecords();
  3157.           // buffObserver.disconnect();
  3158.           // buffObserver.observe(div,  {
  3159.           //     childList: true,
  3160.           //     subtree: false
  3161.           // })
  3162.  
  3163.           if (ENABLE_DELAYED_CHAT_OCCURRENCE && isFirstList) {
  3164.             asyncDelayChatOccurrence(m2);
  3165.           }
  3166.  
  3167.  
  3168.           if (ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX) {
  3169.  
  3170.             (() => {
  3171.  
  3172.               const tag = 'yt-iframed-player-events-relay'
  3173.               const dummy = document.createElement(tag);
  3174.  
  3175.               const cProto = getProto(dummy);
  3176.               if (!cProto || !cProto.handlePostMessage_) {
  3177.                 console.warn(`proto.handlePostMessage_ for ${tag} is unavailable.`);
  3178.                 return;
  3179.               }
  3180.  
  3181.               if (typeof cProto.handlePostMessage_ === 'function' && !cProto.handlePostMessage66_) {
  3182.  
  3183.                 cProto.handlePostMessage66_ = cProto.handlePostMessage_;
  3184.  
  3185.                 cProto.handlePostMessage67_ = function (a) {
  3186.  
  3187.                   const da = a.data;
  3188.  
  3189.  
  3190.  
  3191.                   playEventsStack = playEventsStack.then(() => {
  3192.  
  3193.  
  3194.  
  3195.                     if ('yt-player-state-change' in da) {
  3196.  
  3197.                       const qc = da['yt-player-state-change'];
  3198.  
  3199.  
  3200.                       let isQcChanged = false;
  3201.  
  3202.                       if (qc === 2) { isQcChanged = qc !== _playerState; _playerState = 2; relayCount = 0; } // paused
  3203.                       else if (qc === 3) { isQcChanged = qc !== _playerState; _playerState = 3; } // playing
  3204.                       else if (qc === 1) { isQcChanged = qc !== _playerState; _playerState = 1; } // playing
  3205.  
  3206.  
  3207.                       if ((isQcChanged) && playerState !== _playerState) {
  3208.                         playerEventsByIframeRelay = true;
  3209.                         onPlayStateChangePromise = new Promise((resolve) => {
  3210.                           let k = _playerState;
  3211.                           foregroundPromiseFn().then(() => {
  3212.                             if (k === _playerState && playerState !== _playerState) playerState = _playerState;
  3213.                             onPlayStateChangePromise = null;
  3214.                             resolve();
  3215.                           })
  3216.                         }).catch(console.warn);
  3217.  
  3218.                       }
  3219.  
  3220.                     } else if ('yt-player-video-progress' in da) {
  3221.                       const vp = da['yt-player-video-progress'];
  3222.  
  3223.  
  3224.                       relayCount++;
  3225.                       lastPlayerProgress = vp > 0 ? vp : 0;
  3226.  
  3227.  
  3228.                       if (relayPromise && vp > 0 && relayCount >= 2) {
  3229.                         if (onPlayStateChangePromise) {
  3230.                           onPlayStateChangePromise.then(() => {
  3231.                             relayPromise && relayPromise.resolve();
  3232.                             relayPromise = null;
  3233.                           })
  3234.                         } else {
  3235.                           relayPromise.resolve();
  3236.                           relayPromise = null;
  3237.                         }
  3238.                       }
  3239.  
  3240.  
  3241.  
  3242.                     }
  3243.  
  3244.  
  3245.  
  3246.  
  3247.  
  3248.  
  3249.                     return this.handlePostMessage66_(a);
  3250.  
  3251.  
  3252.  
  3253.                   }).catch(console.warn);
  3254.  
  3255.                 }
  3256.  
  3257.  
  3258.                 cProto.handlePostMessage_ = function (a) {
  3259.  
  3260.  
  3261.                   const da = (a || 0).data || 0;
  3262.  
  3263.                   if (typeof da !== 'object') return;
  3264.  
  3265.                   if (waitForInitialDataCompletion === 1) return;
  3266.  
  3267.                   if (!isPlayProgressTriggered) {
  3268.                     isPlayProgressTriggered = true;
  3269.  
  3270.                     if ('yt-player-video-progress' in da) {
  3271.                       waitForInitialDataCompletion = 1;
  3272.  
  3273.                       const wrapWith = (data) => {
  3274.                         const { origin } = a;
  3275.                         return {
  3276.                           origin,
  3277.                           data
  3278.                         };
  3279.                       }
  3280.  
  3281.                       this.handlePostMessage67_(wrapWith({
  3282.                         "yt-iframed-parent-ready": true
  3283.                       }));
  3284.  
  3285.  
  3286.  
  3287.                       playEventsStack = playEventsStack.then(() => {
  3288.  
  3289.  
  3290.  
  3291.                         const lcr = document.querySelector('yt-live-chat-renderer');
  3292.                         const psc = document.querySelector("yt-player-seek-continuation");
  3293.                         if (lcr && psc && lcr.replayBuffer_) {
  3294.  
  3295.  
  3296.                           const rbProgress = lcr.replayBuffer_.lastVideoOffsetTimeMsec;
  3297.                           const daProgress = da['yt-player-video-progress'] * 1000
  3298.                           // document.querySelector('yt-live-chat-renderer').playerProgressChanged_(1e-5);
  3299.  
  3300.  
  3301.                           const front_ = (lcr.replayBuffer_.replayQueue || 0).front_;
  3302.                           const back_ = (lcr.replayBuffer_.replayQueue || 0).back_;
  3303.  
  3304.  
  3305.                           // console.log(deepCopy( front_))
  3306.                           // console.log(deepCopy( back_))
  3307.                           // console.log(rbProgress, daProgress, )
  3308.                           if (front_ && back_ && rbProgress > daProgress && back_.length > 2 && back_.some(e => e && +e.videoOffsetTimeMsec > daProgress) && back_.some(e => e && +e.videoOffsetTimeMsec < daProgress)) {
  3309.                             // no action
  3310.                             // console.log('ss1')
  3311.                           } else if (rbProgress < daProgress + 3400 && rbProgress > daProgress - 1200) {
  3312.                             //  daProgress - 1200 < rbProgress < daProgress + 3400
  3313.                             // console.log('ss2')
  3314.                           } else {
  3315.  
  3316.                             // console.log('ss3')
  3317.                             // lcr.replayBuffer_.replayQueue.back_.length= 0;
  3318.                             // lcr.replayBuffer_.replayQueue.front_.length= 0;
  3319.  
  3320.                             // lcr
  3321.                             lcr.previousProgressSec = 1E-5;
  3322.                             // lcr._setIsSeeking(!0),
  3323.                             lcr.replayBuffer_.clear()
  3324.                             psc.fireSeekContinuation_(da['yt-player-video-progress']);
  3325.                           }
  3326.  
  3327.                         }
  3328.  
  3329.  
  3330.                         waitForInitialDataCompletion = 2;
  3331.  
  3332.                         this.handlePostMessage_(a);
  3333.  
  3334.  
  3335.                       }).catch(console.warn);
  3336.  
  3337.  
  3338.  
  3339.                       return;
  3340.  
  3341.                     }
  3342.  
  3343.                   }
  3344.  
  3345.  
  3346.  
  3347.                   this.handlePostMessage67_(a);
  3348.  
  3349.  
  3350.  
  3351.                 }
  3352.  
  3353.               }
  3354.  
  3355.  
  3356.             })();
  3357.  
  3358.           }
  3359.  
  3360.           if (isFirstList && DO_CHECK_TICKER_BACKGROUND_OVERRIDED) {
  3361.             asyncTickerBackgroundOverridedChecker();
  3362.           }
  3363.  
  3364.         }
  3365.       }
  3366.  
  3367.       return { setupMutObserver };
  3368.  
  3369.  
  3370.  
  3371.     })();
  3372.  
  3373.     const setupEvents = () => {
  3374.  
  3375.  
  3376.       let scrollCount = 0;
  3377.  
  3378.       const passiveCapture = typeof IntersectionObserver === 'function' ? { capture: true, passive: true } : true;
  3379.  
  3380.  
  3381.       const delayFlushActiveItemsAfterUserActionK_ = () => {
  3382.  
  3383.         const lcRenderer = lcRendererElm();
  3384.         if (lcRenderer) {
  3385.           const cnt = insp(lcRenderer);
  3386.           if (!cnt.hasUserJustInteracted11_) return;
  3387.           if (cnt.atBottom && cnt.allowScroll && cnt.activeItems_.length >= 1 && cnt.hasUserJustInteracted11_()) {
  3388.             cnt.delayFlushActiveItemsAfterUserAction11_ && cnt.delayFlushActiveItemsAfterUserAction11_();
  3389.           }
  3390.         }
  3391.  
  3392.       }
  3393.  
  3394.       document.addEventListener('scroll', (evt) => {
  3395.         if (!evt || !evt.isTrusted) return;
  3396.         // lastScroll = dateNow();
  3397.         if (++scrollCount > 1e9) scrollCount = 9;
  3398.       }, passiveCapture); // support contain => support passive
  3399.  
  3400.       let lastScrollCount = -1;
  3401.       document.addEventListener('wheel', (evt) => {
  3402.         if (!evt || !evt.isTrusted) return;
  3403.         if (lastScrollCount === scrollCount) return;
  3404.         lastScrollCount = scrollCount;
  3405.         lastWheel = dateNow();
  3406.         delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3407.       }, passiveCapture); // support contain => support passive
  3408.  
  3409.       document.addEventListener('mousedown', (evt) => {
  3410.         if (!evt || !evt.isTrusted) return;
  3411.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3412.         lastMouseDown = dateNow();
  3413.         currentMouseDown = true;
  3414.         lastUserInteraction = lastMouseDown;
  3415.       }, passiveCapture);
  3416.  
  3417.       document.addEventListener('pointerdown', (evt) => {
  3418.         if (!evt || !evt.isTrusted) return;
  3419.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3420.         lastMouseDown = dateNow();
  3421.         currentMouseDown = true;
  3422.         lastUserInteraction = lastMouseDown;
  3423.       }, passiveCapture);
  3424.  
  3425.       document.addEventListener('click', (evt) => {
  3426.         if (!evt || !evt.isTrusted) return;
  3427.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3428.         lastMouseDown = lastMouseUp = dateNow();
  3429.         currentMouseDown = false;
  3430.         lastUserInteraction = lastMouseDown;
  3431.         delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3432.       }, passiveCapture);
  3433.  
  3434.       document.addEventListener('tap', (evt) => {
  3435.         if (!evt || !evt.isTrusted) return;
  3436.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3437.         lastMouseDown = lastMouseUp = dateNow();
  3438.         currentMouseDown = false;
  3439.         lastUserInteraction = lastMouseDown;
  3440.         delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3441.       }, passiveCapture);
  3442.  
  3443.  
  3444.       document.addEventListener('mouseup', (evt) => {
  3445.         if (!evt || !evt.isTrusted) return;
  3446.         if (currentMouseDown) {
  3447.           lastMouseUp = dateNow();
  3448.           currentMouseDown = false;
  3449.           lastUserInteraction = lastMouseUp;
  3450.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3451.         }
  3452.       }, passiveCapture);
  3453.  
  3454.  
  3455.       document.addEventListener('pointerup', (evt) => {
  3456.         if (!evt || !evt.isTrusted) return;
  3457.         if (currentMouseDown) {
  3458.           lastMouseUp = dateNow();
  3459.           currentMouseDown = false;
  3460.           lastUserInteraction = lastMouseUp;
  3461.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3462.         }
  3463.       }, passiveCapture);
  3464.  
  3465.       document.addEventListener('touchstart', (evt) => {
  3466.         if (!evt || !evt.isTrusted) return;
  3467.         lastTouchDown = dateNow();
  3468.         currentTouchDown = true;
  3469.         lastUserInteraction = lastTouchDown;
  3470.       }, passiveCapture);
  3471.  
  3472.       document.addEventListener('touchmove', (evt) => {
  3473.         if (!evt || !evt.isTrusted) return;
  3474.         lastTouchDown = dateNow();
  3475.         currentTouchDown = true;
  3476.         lastUserInteraction = lastTouchDown;
  3477.       }, passiveCapture);
  3478.  
  3479.       document.addEventListener('touchend', (evt) => {
  3480.         if (!evt || !evt.isTrusted) return;
  3481.         if (currentTouchDown) {
  3482.           lastTouchUp = dateNow();
  3483.           currentTouchDown = false;
  3484.           lastUserInteraction = lastTouchUp;
  3485.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3486.         }
  3487.       }, passiveCapture);
  3488.  
  3489.       document.addEventListener('touchcancel', (evt) => {
  3490.         if (!evt || !evt.isTrusted) return;
  3491.         if (currentTouchDown) {
  3492.           lastTouchUp = dateNow();
  3493.           currentTouchDown = false;
  3494.           lastUserInteraction = lastTouchUp;
  3495.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3496.         }
  3497.       }, passiveCapture);
  3498.  
  3499.  
  3500.     }
  3501.  
  3502.     const getTimestampUsec = (itemRenderer) => {
  3503.       if (itemRenderer && 'timestampUsec' in itemRenderer) {
  3504.         return itemRenderer.timestampUsec
  3505.       } else if (itemRenderer && itemRenderer.showItemEndpoint) {
  3506.         const messageRenderer = ((itemRenderer.showItemEndpoint.showLiveChatItemEndpoint || 0).renderer || 0);
  3507.         if (messageRenderer) {
  3508.  
  3509.           const messageRendererKey = firstObjectKey(messageRenderer);
  3510.           if (messageRendererKey && messageRenderer[messageRendererKey]) {
  3511.             const messageRendererData = messageRenderer[messageRendererKey];
  3512.             if (messageRendererData && 'timestampUsec' in messageRendererData) {
  3513.               return messageRendererData.timestampUsec
  3514.             }
  3515.           }
  3516.         }
  3517.       }
  3518.       return null;
  3519.     }
  3520.  
  3521.     const onRegistryReadyForDOMOperations = () => {
  3522.  
  3523.       let firstCheckedOnYtInit = false;
  3524.  
  3525.       const assertorURL = () => assertor(() => location.pathname.startsWith('/live_chat') && (location.search.indexOf('continuation=') > 0 || location.search.indexOf('v=') > 0));
  3526.  
  3527.       const mightFirstCheckOnYtInit = () => {
  3528.         if (firstCheckedOnYtInit) return;
  3529.         firstCheckedOnYtInit = true;
  3530.  
  3531.         if (!document.body || !document.head) return;
  3532.         if (!assertorURL()) return;
  3533.  
  3534.         addCssManaged();
  3535.  
  3536.         let efsContainer = document.getElementById('elzm-fonts-yk75g');
  3537.         if (efsContainer && efsContainer.parentNode !== document.body) {
  3538.           document.body.appendChild(efsContainer);
  3539.         }
  3540.  
  3541.       };
  3542.  
  3543.       if (!assertorURL()) return;
  3544.       // if (!assertor(() => document.getElementById('yt-masthead') === null)) return;
  3545.  
  3546.       if (document.documentElement && document.head) {
  3547.         addCssManaged();
  3548.       }
  3549.       // console.log(document.body===null)
  3550.  
  3551.       if (ATTEMPT_TICKER_ANIMATION_START_TIME_DETECTION) {
  3552.         getLCRDummy().then(async (lcrDummy) => {
  3553.  
  3554.           const tag = "yt-live-chat-renderer"
  3555.           const dummy = lcrDummy;
  3556.  
  3557.           const cProto = getProto(dummy);
  3558.           if (!cProto || !cProto.attached) {
  3559.             console.warn(`proto.attached for ${tag} is unavailable.`);
  3560.             return;
  3561.           }
  3562.  
  3563.           mightFirstCheckOnYtInit();
  3564.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-renderer hacks");
  3565.           console.log("[Begin]");
  3566.  
  3567.  
  3568.  
  3569.  
  3570.  
  3571.  
  3572.           if (typeof cProto.playerProgressChanged_ === 'function' && !cProto.playerProgressChanged32_) {
  3573.  
  3574.             cProto.playerProgressChanged32_ = cProto.playerProgressChanged_;
  3575.  
  3576.             const pop078 = function () {
  3577.               const r = this.pop78();
  3578.  
  3579.               if (r && (r.actions || 0).length >= 1 && r.videoOffsetTimeMsec) {
  3580.                 for (const action of r.actions) {
  3581.  
  3582.                   const itemActionKey = !action ? null : 'addChatItemAction' in action ? 'addChatItemAction' : 'addLiveChatTickerItemAction' in action ? 'addLiveChatTickerItemAction' : null;
  3583.                   if (itemActionKey) {
  3584.  
  3585.                     const itemAction = action[itemActionKey];
  3586.                     const item = (itemAction || 0).item;
  3587.                     if (typeof item === 'object') {
  3588.  
  3589.                       const rendererKey = firstObjectKey(item);
  3590.                       if (rendererKey) {
  3591.                         const renderer = item[rendererKey];
  3592.                         if (renderer && typeof renderer === 'object') {
  3593.                           renderer.__videoOffsetTimeMsec__ = r.videoOffsetTimeMsec;
  3594.                           renderer.__progressAt__ = playerProgressChangedArg1;
  3595.                         }
  3596.  
  3597.                       }
  3598.  
  3599.                     }
  3600.                   }
  3601.                 }
  3602.               }
  3603.               return r;
  3604.             }
  3605.  
  3606.             cProto.playerProgressChanged_ = function (a, b, c) {
  3607.               playerProgressChangedArg1 = a;
  3608.               playerProgressChangedArg2 = b;
  3609.               playerProgressChangedArg3 = c;
  3610.               const replayBuffer_ = this.replayBuffer_;
  3611.               if (replayBuffer_) {
  3612.                 const replayQueue = replayBuffer_.replayQueue
  3613.                 if (replayQueue && typeof replayQueue === 'object' && !replayQueue.qe3) {
  3614.  
  3615.                   replayBuffer_.replayQueue = new Proxy(replayBuffer_.replayQueue, {
  3616.                     get(target, prop, receiver) {
  3617.                       if (prop === 'qe3') return 1;
  3618.                       const v = target[prop];
  3619.                       if (prop === 'front_') {
  3620.                         if (v && typeof v.length === 'number') {
  3621.                           if (!v.pop78) {
  3622.                             v.pop78 = v.pop;
  3623.                             v.pop = pop078;
  3624.                           }
  3625.                         }
  3626.                       }
  3627.                       return v;
  3628.                     }
  3629.                   });
  3630.  
  3631.                 }
  3632.               }
  3633.               return this.playerProgressChanged32_.apply(this, arguments);
  3634.             };
  3635.  
  3636.           }
  3637.  
  3638.           // if (typeof cProto.immediatelyApplyLiveChatActions === 'function' && !cProto.immediatelyApplyLiveChatActions32) {
  3639.  
  3640.           //   cProto.immediatelyApplyLiveChatActions32 = cProto.immediatelyApplyLiveChatActions;
  3641.  
  3642.           //   cProto.immediatelyApplyLiveChatActions = function (a) {
  3643.           //     // if (a.length > 8) {
  3644.           //     //   console.log(a)
  3645.           //     // }
  3646.           //     // console.log(a)
  3647.           //     /*
  3648.           //     let arr=a.slice();
  3649.  
  3650.           //     if(arr.length >= 2){
  3651.           //       arr.sort((a, b)=>{
  3652.           //         let ak = firstObjectKey(a);
  3653.           //         let bk = firstObjectKey(b);
  3654.           //         if(!ak||!bk) return 0;
  3655.           //         const ax = +a[ak]._timestampUsec57;
  3656.           //         const bx = +b[bk]._timestampUsec57;
  3657.           //         if(ax >0 && bx >0){
  3658.           //           const c =  bx - ax ;
  3659.  
  3660.           //           return c > 0.1 ? -1 : c< -0.1 ? 1 : 0;
  3661.           //         }
  3662.           //         return 0;
  3663.  
  3664.           //       });
  3665.           //       console.log('sort', JSON.parse(JSON.stringify(arr)));
  3666.           //     }
  3667.           //     a=arr;
  3668.           //     */
  3669.  
  3670.           //     if (a && typeof a === 'object' && a.length >= 1) {
  3671.           //       const d = Date.now();
  3672.           //       const m = [];
  3673.           //       for (let i = 0, l = a.length; i < l; i++) {
  3674.           //         const action = a[i];
  3675.           //         const key = !action ? null : 'addChatItemAction' in action ? 'addChatItemAction' : 'addLiveChatTickerItemAction' in action ? 'addLiveChatTickerItemAction' : null;
  3676.           //         if (key === 'addChatItemAction' || key === 'addLiveChatTickerItemAction') {
  3677.           //           const itemAction = action[key] || 0;
  3678.           //           const item = itemAction.item || 0;
  3679.           //           if (item && typeof item === 'object') {
  3680.           //             let rendererKey = firstObjectKey(item);
  3681.           //             const renderer = item[rendererKey];
  3682.           //             let timestampUsec = getTimestampUsec(renderer);
  3683.           //             if (timestampUsec !== null) {
  3684.           //               renderer._timestampUsec57 = timestampUsec;
  3685.           //             }
  3686.           //             m.push(renderer);
  3687.           //             // if(timestampUsec!==null){
  3688.           //             //   if(key==='addLiveChatTickerItemAction')console.log(renderer, rendererKey, key)
  3689.           //             //   m.push(renderer);
  3690.  
  3691.           //             // }
  3692.           //           }
  3693.           //         }
  3694.           //       }
  3695.           //       if (m.length >= 1) {
  3696.  
  3697.           //         let lastUsec = null;
  3698.           //         for (let i = 0, l = m.length; i < l; i++) {
  3699.           //           const renderer = m[i];
  3700.           //           if ('_timestampUsec57' in renderer) {
  3701.           //             lastUsec = +renderer._timestampUsec57 / 1E3;
  3702.           //             renderer.__lcrTime__ = d;
  3703.           //             renderer.__actionAt__ = d;
  3704.           //           }
  3705.           //         }
  3706.  
  3707.  
  3708.           //         if (lastUsec !== null) {
  3709.  
  3710.           //           const refUsec = lastUsec
  3711.  
  3712.           //           let prevUsec = null;
  3713.           //           for (let i = 0, l = m.length; i < l; i++) {
  3714.           //             const renderer = m[i];
  3715.           //             if ('_timestampUsec57' in renderer) {
  3716.  
  3717.           //               let actualTime = +renderer._timestampUsec57 / 1E3; // ms
  3718.           //               let lcrTime = d - Math.round(refUsec - actualTime); // ms
  3719.  
  3720.           //               renderer.__lcrTime__ = lcrTime; // ms
  3721.           //               renderer.__actionAt__ = d;
  3722.  
  3723.           //               prevUsec = lcrTime
  3724.           //             } else {
  3725.  
  3726.           //               renderer._prevUsec57 = prevUsec;
  3727.           //             }
  3728.           //           }
  3729.  
  3730.  
  3731.           //           let nextUsec = null;
  3732.           //           for (let i = m.length - 1; i >= 0; i--) {
  3733.           //             const renderer = m[i];
  3734.           //             if ('_timestampUsec57' in renderer) {
  3735.  
  3736.           //               nextUsec = renderer.__lcrTime__
  3737.           //             } else {
  3738.  
  3739.           //               renderer._nextUsec57 = nextUsec;
  3740.  
  3741.           //               if (renderer._nextUsec57 > 0 && renderer._prevUsec57 > 0 && renderer._nextUsec57 > renderer._prevUsec57) {
  3742.           //                 renderer.__lcrTime__ = (renderer._nextUsec57 + renderer._prevUsec57) / 2;
  3743.           //                 renderer.__actionAt__ = d;
  3744.           //               }
  3745.           //             }
  3746.           //           }
  3747.  
  3748.  
  3749.           //         }
  3750.  
  3751.  
  3752.           //       }
  3753.           //     }
  3754.           //     return this.immediatelyApplyLiveChatActions32.apply(this, arguments)
  3755.           //   }
  3756.  
  3757.  
  3758.           // }
  3759.  
  3760.  
  3761.  
  3762.           console.log("[End]");
  3763.           console.groupEnd();
  3764.  
  3765.  
  3766.         });
  3767.  
  3768.       }
  3769.  
  3770.       customElements.whenDefined('yt-live-chat-item-list-renderer').then(() => {
  3771.  
  3772.         const tag = "yt-live-chat-item-list-renderer"
  3773.         const dummy = document.createElement(tag);
  3774.  
  3775.         const cProto = getProto(dummy);
  3776.         if (!cProto || !cProto.attached) {
  3777.           console.warn(`proto.attached for ${tag} is unavailable.`);
  3778.           return;
  3779.         }
  3780.  
  3781.         mightFirstCheckOnYtInit();
  3782.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-item-list-renderer hacks");
  3783.         console.log("[Begin]");
  3784.  
  3785.         const mclp = cProto;
  3786.         try {
  3787.           assertor(() => typeof mclp.scrollToBottom_ === 'function');
  3788.           assertor(() => typeof mclp.flushActiveItems_ === 'function');
  3789.           assertor(() => typeof mclp.canScrollToBottom_ === 'function');
  3790.           assertor(() => typeof mclp.setAtBottom === 'function');
  3791.           assertor(() => typeof mclp.scrollToBottom66_ === 'undefined');
  3792.           assertor(() => typeof mclp.flushActiveItems66_ === 'undefined');
  3793.         } catch (e) { }
  3794.  
  3795.  
  3796.         try {
  3797.           assertor(() => typeof mclp.attached === 'function');
  3798.           assertor(() => typeof mclp.detached === 'function');
  3799.           assertor(() => typeof mclp.canScrollToBottom_ === 'function');
  3800.           assertor(() => typeof mclp.isSmoothScrollEnabled_ === 'function');
  3801.           assertor(() => typeof mclp.maybeResizeScrollContainer_ === 'function');
  3802.           assertor(() => typeof mclp.refreshOffsetContainerHeight_ === 'function');
  3803.           assertor(() => typeof mclp.smoothScroll_ === 'function');
  3804.           assertor(() => typeof mclp.resetSmoothScroll_ === 'function');
  3805.         } catch (e) { }
  3806.  
  3807.         mclp.__intermediate_delay__ = null;
  3808.  
  3809.         let mzk = 0;
  3810.         let myk = 0;
  3811.         let mlf = 0;
  3812.         let myw = 0;
  3813.         let mzt = 0;
  3814.         let zarr = null;
  3815.         let mlg = 0;
  3816.  
  3817.         if ((mclp.clearList || 0).length === 0) {
  3818.           assertor(() => fnIntegrity(mclp.clearList, '0.106.50'));
  3819.           mclp.clearList66 = mclp.clearList;
  3820.           mclp.clearList = function () {
  3821.             mzk++;
  3822.             myk++;
  3823.             mlf++;
  3824.             myw++;
  3825.             mzt++;
  3826.             mlg++;
  3827.             zarr = null;
  3828.             this.__intermediate_delay__ = null;
  3829.             this.clearList66();
  3830.           };
  3831.           console.log("clearList", "OK");
  3832.         } else {
  3833.           console.log("clearList", "NG");
  3834.         }
  3835.  
  3836.  
  3837.         let onListRendererAttachedDone = false;
  3838.  
  3839.         function setList(itemOffset, items) {
  3840.  
  3841.           const isFirstTime = onListRendererAttachedDone === false;
  3842.  
  3843.           if (isFirstTime) {
  3844.             onListRendererAttachedDone = true;
  3845.             Promise.resolve().then(watchUserCSS);
  3846.             addCssManaged();
  3847.             setupEvents();
  3848.           }
  3849.  
  3850.           setupStyle(itemOffset, items);
  3851.  
  3852.           setupMutObserver(items);
  3853.         }
  3854.  
  3855.         mclp.attached419 = async function () {
  3856.  
  3857.           if (!this.isAttached) return;
  3858.  
  3859.           let maxTrial = 16;
  3860.           while (!this.$ || !this.$['item-scroller'] || !this.$['item-offset'] || !this.$['items']) {
  3861.             if (--maxTrial < 0 || !this.isAttached) return;
  3862.             await new Promise(requestAnimationFrame);
  3863.           }
  3864.  
  3865.           if (this.isAttached !== true) return;
  3866.  
  3867.           if (!this.$) {
  3868.             console.warn("!this.$");
  3869.             return;
  3870.           }
  3871.           if (!this.$) return;
  3872.           /** @type {HTMLElement | null} */
  3873.           const itemScroller = this.$['item-scroller'];
  3874.           /** @type {HTMLElement | null} */
  3875.           const itemOffset = this.$['item-offset'];
  3876.           /** @type {HTMLElement | null} */
  3877.           const items = this.$['items'];
  3878.  
  3879.           if (!itemScroller || !itemOffset || !items) {
  3880.             console.warn("items.parentNode !== itemOffset");
  3881.             return;
  3882.           }
  3883.  
  3884.           if (nodeParent(items) !== itemOffset) {
  3885.  
  3886.             console.warn("items.parentNode !== itemOffset");
  3887.             return;
  3888.           }
  3889.  
  3890.  
  3891.           if (items.id !== 'items' || itemOffset.id !== "item-offset") {
  3892.  
  3893.             console.warn("id incorrect");
  3894.             return;
  3895.           }
  3896.  
  3897.           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')
  3898.  
  3899.           if (!isTargetItems) {
  3900.             console.warn("!isTargetItems");
  3901.             return;
  3902.           }
  3903.  
  3904.           setList(itemOffset, items);
  3905.  
  3906.         }
  3907.  
  3908.         mclp.attached331 = mclp.attached;
  3909.         mclp.attached = function () {
  3910.           this.attached419 && this.attached419();
  3911.           return this.attached331();
  3912.         }
  3913.  
  3914.         mclp.detached331 = mclp.detached;
  3915.  
  3916.         mclp.detached = function () {
  3917.           setupMutObserver();
  3918.           return this.detached331();
  3919.         }
  3920.  
  3921.         const t29s = document.querySelectorAll("yt-live-chat-item-list-renderer");
  3922.         for (const t29 of t29s) {
  3923.           if (insp(t29).isAttached === true) {
  3924.             t29.attached419();
  3925.           }
  3926.         }
  3927.  
  3928.         if ((mclp.async || 0).length === 2 && (mclp.cancelAsync || 0).length === 1) {
  3929.  
  3930.           assertor(() => fnIntegrity(mclp.async, '2.24.15'));
  3931.           assertor(() => fnIntegrity(mclp.cancelAsync, '1.15.8'));
  3932.  
  3933.           /** @type {Map<number, any>} */
  3934.           const aMap = new Map();
  3935.           let count = 6150;
  3936.           mclp.async66 = mclp.async;
  3937.           mclp.async = function (e, f) {
  3938.             // ensure the previous operation is done
  3939.             // .async is usually after the time consuming functions like flushActiveItems_ and scrollToBottom_
  3940.             const hasF = arguments.length === 2;
  3941.             const stack = new Error().stack;
  3942.             const isFlushAsync = stack.indexOf('flushActiveItems_') >= 0;
  3943.             if (count > 1e9) count = 6159;
  3944.             const resId = ++count;
  3945.             aMap.set(resId, e);
  3946.             (this.__intermediate_delay__ || Promise.resolve()).then(rk => {
  3947.               const rp = aMap.get(resId);
  3948.               if (typeof rp !== 'function') {
  3949.                 return;
  3950.               }
  3951.               let cancelCall = false;
  3952.               if (isFlushAsync) {
  3953.                 if (rk < 0) {
  3954.                   cancelCall = true;
  3955.                 } else if (rk === 2 && arguments[0] === this.maybeScrollToBottom_) {
  3956.                   cancelCall = true;
  3957.                 }
  3958.               }
  3959.               if (cancelCall) {
  3960.                 aMap.delete(resId);
  3961.               } else {
  3962.                 const asyncEn = function () {
  3963.                   aMap.delete(resId);
  3964.                   return rp.apply(this, arguments);
  3965.                 };
  3966.                 aMap.set(resId, hasF ? this.async66(asyncEn, f) : this.async66(asyncEn));
  3967.               }
  3968.             });
  3969.  
  3970.             return resId;
  3971.           }
  3972.  
  3973.           mclp.cancelAsync66 = mclp.cancelAsync;
  3974.           mclp.cancelAsync = function (resId) {
  3975.             if (resId <= 6150) {
  3976.               this.cancelAsync66(resId);
  3977.             } else if (aMap.has(resId)) {
  3978.               const rp = aMap.get(resId);
  3979.               aMap.delete(resId);
  3980.               if (typeof rp !== 'function') {
  3981.                 this.cancelAsync66(rp);
  3982.               }
  3983.             }
  3984.           }
  3985.  
  3986.           console.log("async", "OK");
  3987.         } else {
  3988.           console.log("async", "NG");
  3989.         }
  3990.  
  3991.  
  3992.         if ((mclp.showNewItems_ || 0).length === 0 && ENABLE_NO_SMOOTH_TRANSFORM) {
  3993.  
  3994.           assertor(() => fnIntegrity(mclp.showNewItems_, '0.170.79'));
  3995.           mclp.showNewItems66_ = mclp.showNewItems_;
  3996.  
  3997.           mclp.showNewItems77_ = async function () {
  3998.             if (myk > 1e9) myk = 9;
  3999.             let tid = ++myk;
  4000.  
  4001.             await new Promise(requestAnimationFrame);
  4002.  
  4003.             if (tid !== myk) {
  4004.               return;
  4005.             }
  4006.  
  4007.             const cnt = this;
  4008.  
  4009.             await Promise.resolve();
  4010.             cnt.showNewItems66_();
  4011.  
  4012.             await Promise.resolve();
  4013.  
  4014.           }
  4015.  
  4016.           mclp.showNewItems_ = function () {
  4017.  
  4018.             const cnt = this;
  4019.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4020.               cnt.showNewItems77_().then(() => {
  4021.                 resolve();
  4022.               });
  4023.             });
  4024.           }
  4025.  
  4026.           console.log("showNewItems_", "OK");
  4027.         } else {
  4028.           console.log("showNewItems_", "NG");
  4029.         }
  4030.  
  4031.  
  4032.         if ((mclp.flushActiveItems_ || 0).length === 0) {
  4033.  
  4034.           const sfi = fnIntegrity(mclp.flushActiveItems_);
  4035.           if (sfi === '0.156.86') {
  4036.             // https://www.youtube.com/s/desktop/f61c8d85/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  4037.             
  4038.             // added "refreshOffsetContainerHeight_"
  4039.  
  4040.             //   f.flushActiveItems_ = function() {
  4041.             //     var a = this;
  4042.             //     if (0 < this.activeItems_.length)
  4043.             //         if (this.canScrollToBottom_()) {
  4044.             //             var b = Math.max(this.visibleItems.length + this.activeItems_.length - this.data.maxItemsToDisplay, 0);
  4045.             //             b && this.splice("visibleItems", 0, b);
  4046.             //             if (this.isSmoothScrollEnabled_() || this.dockableMessages.length)
  4047.             //                 this.preinsertHeight_ = this.items.clientHeight;
  4048.             //             this.activeItems_.unshift("visibleItems");
  4049.             //             try {
  4050.             //                 this.push.apply(this, this.activeItems_)
  4051.             //             } catch (c) {
  4052.             //                 fm(c)
  4053.             //             }
  4054.             //             this.activeItems_ = [];
  4055.             //             this.isSmoothScrollEnabled_() ? this.canScrollToBottom_() && Mw(function() {
  4056.             //                 a.showNewItems_()
  4057.             //             }) : Mw(function() {
  4058.             //                 a.refreshOffsetContainerHeight_();
  4059.             //                 a.maybeScrollToBottom_()
  4060.             //             })
  4061.             //         } else
  4062.             //             this.activeItems_.length > this.data.maxItemsToDisplay && this.activeItems_.splice(0, this.activeItems_.length - this.data.maxItemsToDisplay)
  4063.             // }
  4064.             // ;
  4065.  
  4066.           } else if (sfi === '0.150.84') {
  4067.             // https://www.youtube.com/s/desktop/e4d15d2c/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  4068.             // var b = Math.max(this.visibleItems.length + this.activeItems_.length - this.data.maxItemsToDisplay, 0);
  4069.             //     b && this.splice("visibleItems", 0, b);
  4070.             //     if (this.isSmoothScrollEnabled_() || this.dockableMessages.length)
  4071.             //         this.preinsertHeight_ = this.items.clientHeight;
  4072.             //     this.activeItems_.unshift("visibleItems");
  4073.             //     try {
  4074.             //         this.push.apply(this, this.activeItems_)
  4075.             //     } catch (c) {
  4076.             //         nm(c)
  4077.             //     }
  4078.             //     this.activeItems_ = [];
  4079.             //     this.isSmoothScrollEnabled_() ? this.canScrollToBottom_() && zQ(function() {
  4080.             //         a.showNewItems_()
  4081.             //     }) : zQ(function() {
  4082.             //         a.maybeScrollToBottom_()
  4083.             //     })
  4084.           } else if (sfi === '0.137.81' || sfi === '0.138.81') {
  4085.             // e.g. https://www.youtube.com/yts/jsbin/live_chat_polymer-vflCyWEBP/live_chat_polymer.js
  4086.           } else {
  4087.             assertor(() => fnIntegrity(mclp.flushActiveItems_, '0.150.84'));
  4088.           }
  4089.  
  4090.           let hasMoreMessageState = !ENABLE_SHOW_MORE_BLINKER ? -1 : 0;
  4091.  
  4092.           let contensWillChangeController = null;
  4093.  
  4094.           mclp.flushActiveItems66_ = mclp.flushActiveItems_;
  4095.  
  4096.           mclp.flushActiveItems78_ = async function (tid) {
  4097.             try {
  4098.               if (tid !== mlf) return;
  4099.               const lockedMaxItemsToDisplay = this.data.maxItemsToDisplay944;
  4100.               let logger = false;
  4101.               const cnt = this;
  4102.               let immd = cnt.__intermediate_delay__;
  4103.               await new Promise(requestAnimationFrame);
  4104.  
  4105.               if (tid !== mlf || cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4106.               if (!cnt.activeItems_ || cnt.activeItems_.length === 0) return;
  4107.  
  4108.               mlf++;
  4109.               if (mlg > 1e9) mlg = 9;
  4110.               ++mlg;
  4111.  
  4112.               const tmpMaxItemsCount = this.data.maxItemsToDisplay;
  4113.               const reducedMaxItemsToDisplay = MAX_ITEMS_FOR_FULL_FLUSH;
  4114.               let changeMaxItemsToDisplay = false;
  4115.               const activeItemsLen = this.activeItems_.length;
  4116.               if (activeItemsLen > tmpMaxItemsCount && tmpMaxItemsCount > 0) {
  4117.                 logger = true;
  4118.  
  4119.                 groupCollapsed("YouTube Super Fast Chat", " | flushActiveItems78_");
  4120.  
  4121.                 logger && console.log('[Begin]')
  4122.  
  4123.                 console.log('this.activeItems_.length > N', activeItemsLen, tmpMaxItemsCount);
  4124.                 if (ENABLE_REDUCED_MAXITEMS_FOR_FLUSH && lockedMaxItemsToDisplay === tmpMaxItemsCount && lockedMaxItemsToDisplay !== reducedMaxItemsToDisplay) {
  4125.                   console.log('reduce maxitems');
  4126.                   if (tmpMaxItemsCount > reducedMaxItemsToDisplay) {
  4127.                     // as all the rendered chats are already "outdated"
  4128.                     // all old chats shall remove and reduced number of few chats will be rendered
  4129.                     // then restore to the original number
  4130.                     changeMaxItemsToDisplay = true;
  4131.                     this.data.maxItemsToDisplay = reducedMaxItemsToDisplay;
  4132.                     console.log(`'maxItemsToDisplay' is reduced from ${tmpMaxItemsCount} to ${reducedMaxItemsToDisplay}.`)
  4133.                   }
  4134.                   this.activeItems_.splice(0, activeItemsLen - this.data.maxItemsToDisplay);
  4135.                   //   console.log('changeMaxItemsToDisplay 01', this.data.maxItemsToDisplay, oMaxItemsToDisplay, reducedMaxItemsToDisplay)
  4136.  
  4137.                   console.log('new this.activeItems_.length > N', this.activeItems_.length);
  4138.                 } else {
  4139.                   this.activeItems_.splice(0, activeItemsLen - (tmpMaxItemsCount < 900 ? tmpMaxItemsCount : 900));
  4140.  
  4141.                   console.log('new this.activeItems_.length > N', this.activeItems_.length);
  4142.                 }
  4143.               }
  4144.               // it is found that it will render all stacked chats after switching back from background
  4145.               // to avoid lagging in popular livestream with massive chats, trim first before rendering.
  4146.               // this.activeItems_.length > this.data.maxItemsToDisplay && this.activeItems_.splice(0, this.activeItems_.length - this.data.maxItemsToDisplay);
  4147.  
  4148.  
  4149.               const items = (cnt.$ || 0).items;
  4150.  
  4151.               if (USE_WILL_CHANGE_CONTROLLER) {
  4152.                 if (contensWillChangeController && contensWillChangeController.element !== items) {
  4153.                   contensWillChangeController.release();
  4154.                   contensWillChangeController = null;
  4155.                 }
  4156.                 if (!contensWillChangeController) contensWillChangeController = new WillChangeController(items, 'contents');
  4157.               }
  4158.               const wcController = contensWillChangeController;
  4159.               cnt.__intermediate_delay__ = Promise.all([cnt.__intermediate_delay__ || null, immd || null]);
  4160.               wcController && wcController.beforeOper();
  4161.               await Promise.resolve();
  4162.               const acItems = cnt.activeItems_;
  4163.               const len1 = acItems.length;
  4164.               if (!len1) console.warn('cnt.activeItems_.length = 0');
  4165.               let waitFor = [];
  4166.  
  4167.  
  4168.               /** @type {Set<string>} */
  4169.               const imageLinks = new Set();
  4170.  
  4171.               if (ENABLE_PRELOAD_THUMBNAIL || EMOJI_IMAGE_SINGLE_THUMBNAIL || AUTHOR_PHOTO_SINGLE_THUMBNAIL) {
  4172.                 for (const item of acItems) {
  4173.                   fixLiveChatItem(item, imageLinks);
  4174.                 }
  4175.               }
  4176.               if (ENABLE_PRELOAD_THUMBNAIL && kptPF !== null && (kptPF & (8 | 4)) && imageLinks.size > 0) {
  4177.                 if (emojiPrefetched.size > PREFETCH_LIMITED_SIZE_EMOJI) emojiPrefetched.clear();
  4178.                 if (authorPhotoPrefetched.size > PREFETCH_LIMITED_SIZE_AUTHOR_PHOTO) authorPhotoPrefetched.clear();
  4179.  
  4180.                 // reference: https://github.com/Yuanfang-fe/Blog-X/issues/34
  4181.                 const rel = kptPF & 8 ? 'subresource' : kptPF & 16 ? 'preload' : kptPF & 4 ? 'prefetch' : '';
  4182.                 // preload performs the high priority fetching.
  4183.                 // prefetch delays the chat display if the video resoruce is demanding.
  4184.  
  4185.                 if (rel) {
  4186.  
  4187.                   imageLinks.forEach(imageLink => {
  4188.                     let d = false;
  4189.                     const isEmoji = imageLink.includes('/emoji/');
  4190.                     const pretechedSet = isEmoji ? emojiPrefetched : authorPhotoPrefetched;
  4191.                     if (!pretechedSet.has(imageLink)) {
  4192.                       pretechedSet.add(imageLink);
  4193.                       d = true;
  4194.                     }
  4195.                     if (d) {
  4196.                       waitFor.push(linker(null, rel, imageLink, 'image'));
  4197.  
  4198.                     }
  4199.                   })
  4200.  
  4201.                 }
  4202.  
  4203.               }
  4204.  
  4205.               const noVisibleItem1 = ((cnt.visibleItems || 0).length || 0) === 0;
  4206.               skipDontRender = noVisibleItem1;
  4207.               // console.log('ss1', Date.now())
  4208.               if (waitFor.length > 0) {
  4209.                 await Promise.race([new Promise(r => setTimeout(r, 250)), Promise.all(waitFor)]);
  4210.               }
  4211.               waitFor.length = 0;
  4212.               waitFor = null;
  4213.               // console.log('ss2', Date.now())
  4214.               cnt.flushActiveItems66_();
  4215.               const noVisibleItem2 = ((cnt.visibleItems || 0).length || 0) === 0;
  4216.               skipDontRender = noVisibleItem2;
  4217.               const len2 = cnt.activeItems_.length;
  4218.               const bAsync = len1 !== len2;
  4219.               await Promise.resolve();
  4220.               if (wcController) {
  4221.                 if (bAsync) {
  4222.                   cnt.async(() => {
  4223.                     wcController.afterOper();
  4224.                   });
  4225.                 } else {
  4226.                   wcController.afterOper();
  4227.                 }
  4228.               }
  4229.               if (changeMaxItemsToDisplay && this.data.maxItemsToDisplay === reducedMaxItemsToDisplay && tmpMaxItemsCount > reducedMaxItemsToDisplay) {
  4230.                 this.data.maxItemsToDisplay = tmpMaxItemsCount;
  4231.  
  4232.                 logger && console.log(`'maxItemsToDisplay' is restored from ${reducedMaxItemsToDisplay} to ${tmpMaxItemsCount}.`);
  4233.                 //   console.log('changeMaxItemsToDisplay 02', this.data.maxItemsToDisplay, oMaxItemsToDisplay, reducedMaxItemsToDisplay)
  4234.               } else if (changeMaxItemsToDisplay) {
  4235.  
  4236.                 logger && console.log(`'maxItemsToDisplay' cannot be restored`, {
  4237.                   maxItemsToDisplay: this.data.maxItemsToDisplay,
  4238.                   reducedMaxItemsToDisplay,
  4239.                   originalMaxItemsToDisplay: tmpMaxItemsCount
  4240.                 });
  4241.               }
  4242.               logger && console.log('[End]');
  4243.  
  4244.               logger && console.groupEnd();
  4245.  
  4246.               if (noVisibleItem1 && !noVisibleItem2) {
  4247.                 // fix possible no auto scroll issue.
  4248.                 setTimeout(() => cnt.setAtBottom(), 1);
  4249.               }
  4250.  
  4251.               if (!ENABLE_NO_SMOOTH_TRANSFORM) {
  4252.  
  4253.  
  4254.                 const ff = () => {
  4255.  
  4256.                   if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4257.                   //   if (tid !== mlf || cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4258.                   if (!cnt.atBottom && cnt.allowScroll && cnt.hasUserJustInteracted11_ && !cnt.hasUserJustInteracted11_()) {
  4259.  
  4260.                     if (typeof window.nextBrowserTick !== 'function') {
  4261.                       cnt.scrollToBottom_();
  4262.                       Promise.resolve().then(() => {
  4263.                         if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4264.                         if (!cnt.canScrollToBottom_()) cnt.scrollToBottom_();
  4265.                       });
  4266.                     } else {
  4267.                       nextBrowserTick(() => {
  4268.                         if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4269.                         cnt.scrollToBottom_();
  4270.                       });
  4271.                     }
  4272.  
  4273.                   }
  4274.                 }
  4275.  
  4276.                 ff();
  4277.  
  4278.  
  4279.                 Promise.resolve().then(ff);
  4280.  
  4281.                 // requestAnimationFrame(ff);
  4282.               } else if (true) { // it might not be sticky to bottom when there is a full refresh.
  4283.  
  4284.                 const knt = cnt;
  4285.                 if (!scrollChatFn) {
  4286.                   const cnt = knt;
  4287.                   const f = () => {
  4288.                     const itemScroller = cnt.itemScroller;
  4289.                     if (!itemScroller || itemScroller.isConnected === false || cnt.isAttached === false) return;
  4290.                     if (!cnt.atBottom) {
  4291.                       cnt.scrollToBottom_();
  4292.                     } else if (itemScroller.scrollTop === 0) { // not yet interacted by user; cannot stick to bottom
  4293.                       itemScroller.scrollTop = itemScroller.scrollHeight;
  4294.                     }
  4295.                   };
  4296.                   if (typeof window.nextBrowserTick !== 'function') {
  4297.                     scrollChatFn = () => Promise.resolve().then(f).then(f);
  4298.                   } else {
  4299.                     scrollChatFn = () => nextBrowserTick(f);
  4300.                   }
  4301.                 }
  4302.  
  4303.                 if (!ENABLE_DELAYED_CHAT_OCCURRENCE) scrollChatFn();
  4304.               }
  4305.  
  4306.               return 1;
  4307.  
  4308.  
  4309.             } catch (e) {
  4310.               console.warn(e);
  4311.             }
  4312.           }
  4313.  
  4314.           mclp.flushActiveItems77_ = function () {
  4315.  
  4316.             return new Promise(resResolve => {
  4317.               try {
  4318.                 const cnt = this;
  4319.                 if (mlf > 1e9) mlf = 9;
  4320.                 let tid = ++mlf;
  4321.                 const hostElement = cnt.hostElement || cnt;
  4322.                 if (tid !== mlf || cnt.isAttached === false || hostElement.isConnected === false) return resResolve();
  4323.                 if (!cnt.activeItems_ || cnt.activeItems_.length === 0) return resResolve();
  4324.  
  4325.                 // 4 times to maxItems to avoid frequent trimming.
  4326.                 // 1 ... 10 ... 20 ... 30 ... 40 ... 50 ... 60 => 16 ... 20 ... 30 ..... 60 ... => 16
  4327.  
  4328.                 const lockedMaxItemsToDisplay = this.data.maxItemsToDisplay944;
  4329.                 this.activeItems_.length > lockedMaxItemsToDisplay * 4 && lockedMaxItemsToDisplay > 4 && this.activeItems_.splice(0, this.activeItems_.length - lockedMaxItemsToDisplay - 1);
  4330.                 if (cnt.canScrollToBottom_()) {
  4331.                   cnt.mutexPromiseFA78 = (cnt.mutexPromiseFA78 || Promise.resolve())
  4332.                     .then(() => cnt.flushActiveItems78_(tid)) // async function
  4333.                     .then((asyncResult) => {
  4334.                       resResolve(asyncResult); // either undefined or 1
  4335.                       resResolve = null;
  4336.                     }).catch((e) => {
  4337.                       console.warn(e);
  4338.                       if (resResolve) resResolve();
  4339.                     });
  4340.                 } else {
  4341.                   resResolve(2);
  4342.                   resResolve = null;
  4343.                 }
  4344.               } catch (e) {
  4345.                 console.warn(e);
  4346.                 if (resResolve) resResolve();
  4347.               }
  4348.  
  4349.  
  4350.             });
  4351.  
  4352.           }
  4353.  
  4354.           mclp.flushActiveItems_ = function () {
  4355.             const cnt = this;
  4356.  
  4357.             if (arguments.length !== 0 || !cnt.activeItems_ || !cnt.canScrollToBottom_) return cnt.flushActiveItems66_.apply(this, arguments);
  4358.  
  4359.             if (cnt.activeItems_.length === 0) {
  4360.               cnt.__intermediate_delay__ = null;
  4361.               return;
  4362.             }
  4363.  
  4364.             const cntData = ((cnt || 0).data || 0);
  4365.             if (cntData.maxItemsToDisplay944 === undefined) {
  4366.               cntData.maxItemsToDisplay944 = null;
  4367.               if (cntData.maxItemsToDisplay > MAX_ITEMS_FOR_TOTAL_DISPLAY) cntData.maxItemsToDisplay = MAX_ITEMS_FOR_TOTAL_DISPLAY;
  4368.               cntData.maxItemsToDisplay944 = cntData.maxItemsToDisplay || null;
  4369.             }
  4370.  
  4371.             // ignore previous __intermediate_delay__ and create a new one
  4372.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4373.               cnt.flushActiveItems77_().then(rt => {  // either undefined or 1 or 2
  4374.                 if (rt === 1) {
  4375.                   resolve(1); // success, scroll to bottom
  4376.                   if (hasMoreMessageState === 1) {
  4377.                     hasMoreMessageState = 0;
  4378.                     const showMore = (cnt.$ || 0)['show-more'];
  4379.                     if (showMore) {
  4380.                       showMore.classList.remove('has-new-messages-miuzp');
  4381.                     }
  4382.                   }
  4383.                 }
  4384.                 else if (rt === 2) {
  4385.                   resolve(2); // success, trim
  4386.                   if (hasMoreMessageState === 0) {
  4387.                     hasMoreMessageState = 1;
  4388.                     const showMore = cnt.$['show-more'];
  4389.                     if (showMore) {
  4390.                       showMore.classList.add('has-new-messages-miuzp');
  4391.                     }
  4392.                   }
  4393.                 }
  4394.                 else resolve(-1); // skip
  4395.               }).catch(e => {
  4396.                 console.warn(e);
  4397.               });
  4398.             });
  4399.  
  4400.           }
  4401.           console.log("flushActiveItems_", "OK");
  4402.         } else {
  4403.           console.log("flushActiveItems_", "NG");
  4404.         }
  4405.  
  4406.         if (SUPPRESS_refreshOffsetContainerHeight_ && typeof mclp.refreshOffsetContainerHeight_ === 'function' && !mclp.refreshOffsetContainerHeight26_ && mclp.refreshOffsetContainerHeight_.length === 0) {
  4407.           assertor(() => fnIntegrity(mclp.refreshOffsetContainerHeight_, '0.31.21'));
  4408.           mclp.refreshOffsetContainerHeight26_ = mclp.refreshOffsetContainerHeight_;
  4409.           mclp.refreshOffsetContainerHeight_ = function () {
  4410.             // var a = this.itemScroller.clientHeight;
  4411.             // this.itemOffset.style.height = this.items.clientHeight + "px";
  4412.             // this.bottomAlignMessages && (this.itemOffset.style.minHeight = a + "px")
  4413.           }
  4414.           console.log("refreshOffsetContainerHeight_", "OK");
  4415.         } else {
  4416.           console.log("refreshOffsetContainerHeight_", "NG");
  4417.         }
  4418.  
  4419.         mclp.delayFlushActiveItemsAfterUserAction11_ = async function () {
  4420.           try {
  4421.             if (mlg > 1e9) mlg = 9;
  4422.             const tid = ++mlg;
  4423.             const keepTrialCond = () => this.atBottom && this.allowScroll && (tid === mlg) && this.isAttached === true && this.activeItems_.length >= 1 && (this.hostElement || 0).isConnected === true;
  4424.             const runCond = () => this.canScrollToBottom_();
  4425.             if (!keepTrialCond()) return;
  4426.             if (runCond()) return this.flushActiveItems_() | 1; // avoid return promise
  4427.             await new Promise(r => setTimeout(r, 80));
  4428.             if (!keepTrialCond()) return;
  4429.             if (runCond()) return this.flushActiveItems_() | 1;
  4430.             await new Promise(requestAnimationFrame);
  4431.             if (runCond()) return this.flushActiveItems_() | 1;
  4432.           } catch (e) {
  4433.             console.warn(e);
  4434.           }
  4435.         }
  4436.  
  4437.         if ((mclp.atBottomChanged_ || 0).length === 1) {
  4438.           // note: if the scrolling is too frequent, the show more visibility might get wrong.
  4439.  
  4440.           const sfi = fnIntegrity(mclp.atBottomChanged_);
  4441.           if (sfi === '1.73.37') {
  4442.             // https://www.youtube.com/s/desktop/e4d15d2c/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  4443.           } else if (sfi === '1.75.39') {
  4444.             // e.g. https://www.youtube.com/yts/jsbin/live_chat_polymer-vflCyWEBP/live_chat_polymer.js
  4445.           } else {
  4446.             assertor(() => fnIntegrity(mclp.atBottomChanged_, '1.73.37'));
  4447.           }
  4448.  
  4449.           const querySelector = HTMLElement.prototype.querySelector;
  4450.           const U = (element) => ({
  4451.             querySelector: (selector) => querySelector.call(element, selector)
  4452.           });
  4453.  
  4454.           let qid = 0;
  4455.           mclp.atBottomChanged_ = function (a) {
  4456.             let tid = ++qid;
  4457.             let b = this;
  4458.             a ? this.hideShowMoreAsync_ || (this.hideShowMoreAsync_ = this.async(function () {
  4459.               if (tid !== qid) return;
  4460.               U(b.hostElement).querySelector("#show-more").style.visibility = "hidden"
  4461.             }, 200)) : (this.hideShowMoreAsync_ && this.cancelAsync(this.hideShowMoreAsync_),
  4462.               this.hideShowMoreAsync_ = null,
  4463.               U(this.hostElement).querySelector("#show-more").style.visibility = "visible")
  4464.           }
  4465.  
  4466.           console.log("atBottomChanged_", "OK");
  4467.         } else {
  4468.           console.log("atBottomChanged_", "NG");
  4469.         }
  4470.  
  4471.         if ((mclp.onScrollItems_ || 0).length === 1) {
  4472.  
  4473.           assertor(() => fnIntegrity(mclp.onScrollItems_, '1.17.9'));
  4474.           mclp.onScrollItems66_ = mclp.onScrollItems_;
  4475.           mclp.onScrollItems77_ = async function (evt) {
  4476.             if (myw > 1e9) myw = 9;
  4477.             let tid = ++myw;
  4478.  
  4479.             await new Promise(requestAnimationFrame);
  4480.  
  4481.             if (tid !== myw) {
  4482.               return;
  4483.             }
  4484.  
  4485.             const cnt = this;
  4486.  
  4487.             await Promise.resolve();
  4488.             if (USE_OPTIMIZED_ON_SCROLL_ITEMS) {
  4489.               await Promise.resolve().then(() => {
  4490.                 this.ytRendererBehavior.onScroll(evt);
  4491.               }).then(() => {
  4492.                 if (this.canScrollToBottom_()) {
  4493.                   const hasUserJustInteracted = this.hasUserJustInteracted11_ ? this.hasUserJustInteracted11_() : true;
  4494.                   if (hasUserJustInteracted) {
  4495.                     // only when there is an user action
  4496.                     this.setAtBottom();
  4497.                     return 1;
  4498.                   }
  4499.                 } else {
  4500.                   // no message inserting
  4501.                   this.setAtBottom();
  4502.                   return 1;
  4503.                 }
  4504.               }).then((r) => {
  4505.  
  4506.                 if (this.activeItems_.length) {
  4507.  
  4508.                   if (this.canScrollToBottom_()) {
  4509.                     this.flushActiveItems_();
  4510.                     return 1 && r;
  4511.                   } else if (this.atBottom && this.allowScroll && (this.hasUserJustInteracted11_ && this.hasUserJustInteracted11_())) {
  4512.                     // delayed due to user action
  4513.                     this.delayFlushActiveItemsAfterUserAction11_ && this.delayFlushActiveItemsAfterUserAction11_();
  4514.                     return 0;
  4515.                   }
  4516.                 }
  4517.               }).then((r) => {
  4518.                 if (r) {
  4519.                   // ensure setAtBottom is correctly set
  4520.                   this.setAtBottom();
  4521.                 }
  4522.               });
  4523.             } else {
  4524.               cnt.onScrollItems66_(evt);
  4525.             }
  4526.  
  4527.             await Promise.resolve();
  4528.  
  4529.           }
  4530.  
  4531.           mclp.onScrollItems_ = function (evt) {
  4532.  
  4533.             const cnt = this;
  4534.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4535.               cnt.onScrollItems77_(evt).then(() => {
  4536.                 resolve();
  4537.               });
  4538.             });
  4539.           }
  4540.           console.log("onScrollItems_", "OK");
  4541.         } else {
  4542.           console.log("onScrollItems_", "NG");
  4543.         }
  4544.  
  4545.         if ((mclp.handleLiveChatActions_ || 0).length === 1) {
  4546.  
  4547.           const sfi = fnIntegrity(mclp.handleLiveChatActions_);
  4548.           if (sfi === '1.39.20') {
  4549.             // TBC
  4550.           } else if (sfi === '1.31.17') {
  4551.             // original
  4552.           } else {
  4553.             assertor(() => fnIntegrity(mclp.handleLiveChatActions_, '1.31.17'));
  4554.           }
  4555.  
  4556.           mclp.handleLiveChatActions66_ = mclp.handleLiveChatActions_;
  4557.  
  4558.           mclp.handleLiveChatActions77_ = async function (arr) {
  4559.             if (typeof (arr || 0).length !== 'number') {
  4560.               this.handleLiveChatActions66_(arr);
  4561.               return;
  4562.             }
  4563.             if (mzt > 1e9) mzt = 9;
  4564.             let tid = ++mzt;
  4565.  
  4566.             if (zarr === null) zarr = arr;
  4567.             else Array.prototype.push.apply(zarr, arr);
  4568.             arr = null;
  4569.  
  4570.             await new Promise(requestAnimationFrame);
  4571.  
  4572.             if (tid !== mzt || zarr === null) {
  4573.               return;
  4574.             }
  4575.  
  4576.             const carr = zarr;
  4577.             zarr = null;
  4578.  
  4579.             await Promise.resolve();
  4580.             this.handleLiveChatActions66_(carr);
  4581.             await Promise.resolve();
  4582.  
  4583.           }
  4584.  
  4585.           mclp.handleLiveChatActions_ = function (arr) {
  4586.  
  4587.             const cnt = this;
  4588.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4589.               cnt.handleLiveChatActions77_(arr).then(() => {
  4590.                 resolve();
  4591.               });
  4592.             });
  4593.           }
  4594.           console.log("handleLiveChatActions_", "OK");
  4595.         } else {
  4596.           console.log("handleLiveChatActions_", "NG");
  4597.         }
  4598.  
  4599.         mclp.hasUserJustInteracted11_ = () => {
  4600.           const t = dateNow();
  4601.           return (t - lastWheel < 80) || currentMouseDown || currentTouchDown || (t - lastUserInteraction < 80);
  4602.         }
  4603.  
  4604.         if ((mclp.canScrollToBottom_ || 0).length === 0) {
  4605.  
  4606.           assertor(() => fnIntegrity(mclp.canScrollToBottom_, '0.9.5'));
  4607.  
  4608.           mclp.canScrollToBottom_ = function () {
  4609.             return this.atBottom && this.allowScroll && !this.hasUserJustInteracted11_();
  4610.           }
  4611.  
  4612.           console.log("canScrollToBottom_", "OK");
  4613.         } else {
  4614.           console.log("canScrollToBottom_", "NG");
  4615.         }
  4616.  
  4617.         if (ENABLE_NO_SMOOTH_TRANSFORM) {
  4618.  
  4619.           mclp.isSmoothScrollEnabled_ = function () {
  4620.             return false;
  4621.           }
  4622.  
  4623.           mclp.maybeResizeScrollContainer_ = function () {
  4624.             //
  4625.           }
  4626.  
  4627.           mclp.refreshOffsetContainerHeight_ = function () {
  4628.             //
  4629.           }
  4630.  
  4631.           mclp.smoothScroll_ = function () {
  4632.             //
  4633.           }
  4634.  
  4635.           mclp.resetSmoothScroll_ = function () {
  4636.             //
  4637.           }
  4638.           console.log("ENABLE_NO_SMOOTH_TRANSFORM", "OK");
  4639.         } else {
  4640.           console.log("ENABLE_NO_SMOOTH_TRANSFORM", "NG");
  4641.         }
  4642.  
  4643.         if (typeof mclp.forEachItem_ === 'function' && !mclp.forEachItem66_ && skipErrorForhandleAddChatItemAction_ && mclp.forEachItem_.length === 1) {
  4644.  
  4645.           mclp.forEachItem66_ = mclp.forEachItem_;
  4646.           mclp.forEachItem_ = function (a) {
  4647.  
  4648.             // ƒ (a){this.visibleItems.forEach(a.bind(this,"visibleItems"));this.activeItems_.forEach(a.bind(this,"activeItems_"))}
  4649.  
  4650.             try {
  4651.  
  4652.               let items801 = false;
  4653.               if (typeof a === 'function') {
  4654.                 const items = this.items;
  4655.                 if (items instanceof HTMLDivElement) {
  4656.                   const ev = this.visibleItems;
  4657.                   const ea = this.activeItems_;
  4658.                   if (ev && ea && ev.length >= 0 && ea.length >= 0) {
  4659.                     items801 = items;
  4660.                   }
  4661.                 }
  4662.               }
  4663.  
  4664.               if (items801) {
  4665.                 items801.__children801__ = 1;
  4666.                 const res = this.forEachItem66_(a);
  4667.                 items801.__children801__ = 0;
  4668.                 return res;
  4669.               }
  4670.  
  4671.             } catch (e) { }
  4672.             return this.forEachItem66_(a);
  4673.  
  4674.  
  4675.             // this.visibleItems.forEach((val, idx, arr)=>{
  4676.             //   a.call(this, 'visibleItems', val, idx, arr);
  4677.             // });
  4678.  
  4679.             // this.activeItems_.forEach((val, idx, arr)=>{
  4680.             //   a.call(this, 'activeItems_', val, idx, arr);
  4681.             // });
  4682.  
  4683.  
  4684.  
  4685.           }
  4686.  
  4687.  
  4688.         }
  4689.  
  4690.         if (typeof mclp.handleAddChatItemAction_ === 'function' && !mclp.handleAddChatItemAction66_ && FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION && (EMOJI_IMAGE_SINGLE_THUMBNAIL || AUTHOR_PHOTO_SINGLE_THUMBNAIL)) {
  4691.  
  4692.           mclp.handleAddChatItemAction66_ = mclp.handleAddChatItemAction_;
  4693.           mclp.handleAddChatItemAction_ = function (a) {
  4694.             try {
  4695.               if (a && typeof a === 'object' && !('length' in a)) {
  4696.                 fixLiveChatItem(a.item, null);
  4697.                 console.assert(arguments[0] === a);
  4698.               }
  4699.             } catch (e) { console.warn(e) }
  4700.             let res;
  4701.             if (skipErrorForhandleAddChatItemAction_) { // YouTube Native Engine Issue
  4702.               try {
  4703.                 res = this.handleAddChatItemAction66_.apply(this, arguments);
  4704.               } catch (e) {
  4705.                 if (e && (e.message || '').includes('.querySelector(')) {
  4706.                   console.log("skipErrorForhandleAddChatItemAction_", e.message);
  4707.                 } else {
  4708.                   throw e;
  4709.                 }
  4710.               }
  4711.             } else {
  4712.               res = this.handleAddChatItemAction66_.apply(this, arguments);
  4713.             }
  4714.             return res;
  4715.           }
  4716.  
  4717.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION) console.log("handleAddChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION ]", "OK");
  4718.         } else {
  4719.  
  4720.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION) console.log("handleAddChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION ]", "OK");
  4721.         }
  4722.  
  4723.  
  4724.         if (typeof mclp.handleReplaceChatItemAction_ === 'function' && !mclp.handleReplaceChatItemAction66_ && FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT && (EMOJI_IMAGE_SINGLE_THUMBNAIL || AUTHOR_PHOTO_SINGLE_THUMBNAIL)) {
  4725.  
  4726.           mclp.handleReplaceChatItemAction66_ = mclp.handleReplaceChatItemAction_;
  4727.           mclp.handleReplaceChatItemAction_ = function (a) {
  4728.             try {
  4729.               if (a && typeof a === 'object' && !('length' in a)) {
  4730.                 fixLiveChatItem(a.replacementItem, null);
  4731.                 console.assert(arguments[0] === a);
  4732.               }
  4733.             } catch (e) { console.warn(e) }
  4734.             return this.handleReplaceChatItemAction66_.apply(this, arguments);
  4735.           }
  4736.  
  4737.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT) console.log("handleReplaceChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT ]", "OK");
  4738.         } else {
  4739.  
  4740.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT) console.log("handleReplaceChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT ]", "OK");
  4741.         }
  4742.  
  4743.         console.log("[End]");
  4744.         console.groupEnd();
  4745.  
  4746.       }).catch(console.warn);
  4747.  
  4748.  
  4749.       const tickerContainerSetAttribute = function (attrName, attrValue) { // ensure '14.30000001%'.toFixed(1)
  4750.  
  4751.         let yd = (this.__dataHost || insp(this).__dataHost || 0).__data;
  4752.  
  4753.         if (arguments.length === 2 && attrName === 'style' && yd && attrValue) {
  4754.  
  4755.           // let v = yd.containerStyle.privateDoNotAccessOrElseSafeStyleWrappedValue_;
  4756.           let v = `${attrValue}`;
  4757.           // conside a ticker is 101px width
  4758.           // 1% = 1.01px
  4759.           // 0.2% = 0.202px
  4760.  
  4761.  
  4762.           const ratio1 = (yd.ratio * 100);
  4763.           if (ratio1 > -1) { // avoid NaN
  4764.  
  4765.             // countdownDurationMs
  4766.             // 600000 - 0.2%    <1% = 6s>  <0.2% = 1.2s>
  4767.             // 300000 - 0.5%    <1% = 3s>  <0.5% = 1.5s>
  4768.             // 150000 - 1%    <1% = 1.5s>
  4769.             // 75000 - 2%    <1% =0.75s > <2% = 1.5s>
  4770.             // 30000 - 5%    <1% =0.3s > <5% = 1.5s>
  4771.  
  4772.             // 99px * 5% = 4.95px
  4773.  
  4774.             // 15000 - 10%    <1% =0.15s > <10% = 1.5s>
  4775.  
  4776.  
  4777.             // 1% Duration
  4778.  
  4779.             let ratio2 = ratio1;
  4780.  
  4781.             const ydd = yd.data;
  4782.             if (ydd) {
  4783.  
  4784.               const d1 = ydd.durationSec;
  4785.               const d2 = ydd.fullDurationSec;
  4786.  
  4787.               // @ step timing [min. 0.2%]
  4788.               let numOfSteps = 500;
  4789.               if ((d1 === d2 || (d1 + 1 === d2)) && d1 > 1) {
  4790.                 if (d2 > 400) numOfSteps = 500; // 0.2%
  4791.                 else if (d2 > 200) numOfSteps = 200; // 0.5%
  4792.                 else if (d2 > 100) numOfSteps = 100; // 1%
  4793.                 else if (d2 > 50) numOfSteps = 50; // 2%
  4794.                 else if (d2 > 25) numOfSteps = 20; // 5% (max => 99px * 5% = 4.95px)
  4795.                 else numOfSteps = 20;
  4796.               }
  4797.               if (numOfSteps > TICKER_MAX_STEPS_LIMIT) numOfSteps = TICKER_MAX_STEPS_LIMIT;
  4798.               if (numOfSteps < 5) numOfSteps = 5;
  4799.  
  4800.               const rd = numOfSteps / 100.0;
  4801.  
  4802.               ratio2 = Math.round(ratio2 * rd) / rd;
  4803.  
  4804.               // ratio2 = Math.round(ratio2 * 5) / 5;
  4805.               ratio2 = ratio2.toFixed(1);
  4806.               v = v.replace(`${ratio1}%`, `${ratio2}%`).replace(`${ratio1}%`, `${ratio2}%`);
  4807.  
  4808.               if (yd.__style_last__ === v) return;
  4809.               yd.__style_last__ = v;
  4810.               // do not consider any delay here.
  4811.               // it shall be inside the looping for all properties changes. all the css background ops are in the same microtask.
  4812.  
  4813.             }
  4814.           }
  4815.  
  4816.           HTMLElement.prototype.setAttribute.call(dr(this), attrName, v);
  4817.  
  4818.  
  4819.         } else {
  4820.           HTMLElement.prototype.setAttribute.apply(dr(this), arguments);
  4821.         }
  4822.  
  4823.       };
  4824.  
  4825.  
  4826.       const fpTicker = (renderer) => {
  4827.         const cnt = insp(renderer);
  4828.         assertor(() => typeof (cnt || 0).is === 'string');
  4829.         assertor(() => ((cnt || 0).hostElement || 0).nodeType === 1);
  4830.         const container = (cnt.$ || 0).container;
  4831.         if (container) {
  4832.           assertor(() => (container || 0).nodeType === 1);
  4833.           assertor(() => typeof container.setAttribute === 'function');
  4834.           container.setAttribute = tickerContainerSetAttribute;
  4835.         } else {
  4836.           console.warn(`"container" does not exist in ${cnt.is}`);
  4837.         }
  4838.       };
  4839.  
  4840.  
  4841.       const tags = [
  4842.         "yt-live-chat-ticker-paid-message-item-renderer",
  4843.         "yt-live-chat-ticker-paid-sticker-item-renderer",
  4844.         "yt-live-chat-ticker-renderer",
  4845.         "yt-live-chat-ticker-sponsor-item-renderer"
  4846.       ];
  4847.  
  4848.       const tagsItemRenderer = [
  4849.         "yt-live-chat-ticker-paid-message-item-renderer",
  4850.         "yt-live-chat-ticker-paid-sticker-item-renderer",
  4851.         "yt-live-chat-ticker-renderer",
  4852.         "yt-live-chat-ticker-sponsor-item-renderer"
  4853.       ];
  4854.  
  4855.  
  4856.       Promise.all(tags.map(tag => customElements.whenDefined(tag))).then(() => {
  4857.  
  4858.         mightFirstCheckOnYtInit();
  4859.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-ticker-... hacks");
  4860.         console.log("[Begin]");
  4861.  
  4862.         let dummyValueForStyleReturn = null;
  4863.  
  4864.         const genDummyValueForStyleReturn = () => {
  4865.           let s = `--nx:82;`
  4866.           let ro = {
  4867.             "privateDoNotAccessOrElseSafeStyleWrappedValue_": s,
  4868.             "implementsGoogStringTypedString": true
  4869.           };
  4870.           ro.getTypedStringValue = ro.toString = function () { return this.privateDoNotAccessOrElseSafeStyleWrappedValue_ };
  4871.           return ro;
  4872.         }
  4873.  
  4874.         let isCSSPropertySupported_ = null;
  4875.         const isCSSPropertySupported = () => {
  4876.  
  4877.           // @property --ticker-rtime
  4878.  
  4879.           if (typeof isCSSPropertySupported_ === 'boolean') return isCSSPropertySupported_;
  4880.           isCSSPropertySupported_ = false;
  4881.  
  4882.           if (typeof CSS !== 'object' || typeof (CSS || 0).registerProperty !== 'function') return false;
  4883.           const documentElement = document.documentElement;
  4884.           if (!documentElement) {
  4885.             console.warn('document.documentElement is not found');
  4886.             return false;
  4887.           }
  4888.           if (`${getComputedStyleCached(documentElement).getPropertyValue('--ticker-rtime')}`.length === 0) {
  4889.             return false;
  4890.           }
  4891.  
  4892.           const ae = animate.call(documentElement,
  4893.             [
  4894.               { '--ticker-rtime': '70%' },
  4895.               { '--ticker-rtime': '30%' }
  4896.             ],
  4897.             {
  4898.               fill: "forwards",
  4899.               duration: 1000 * 40,
  4900.               easing: 'linear'
  4901.             }
  4902.           );
  4903.  
  4904.           let animatedValue = getComputedStyleCached(document.documentElement).getPropertyValue('--ticker-rtime');
  4905.           ae.finish();
  4906.           if (`${animatedValue}`.length !== 3) return false;
  4907.  
  4908.           isCSSPropertySupported_ = true;
  4909.           return true;
  4910.  
  4911.         };
  4912.  
  4913.  
  4914.         let windowShownAt = -1;
  4915.         const setupEventForWindowShownAt = () => {
  4916.           window.addEventListener('visibilitychange', () => {
  4917.             if (document.visibilityState === 'visible') windowShownAt = Date.now();
  4918.             else windowShownAt = 0;
  4919.           }, false);
  4920.         }
  4921.  
  4922.         const dProto = {
  4923.  
  4924.           attachedForTickerInit: function () {
  4925.  
  4926.             fpTicker(this.hostElement || this);
  4927.             return this.attached77();
  4928.  
  4929.           },
  4930.  
  4931.  
  4932.           // doAnimator
  4933.  
  4934.           _makeAnimator: function () {
  4935.             if (this._r782) return;
  4936.             // if (!this.isAttached) return;
  4937.             if (!this._runnerAE) {
  4938.               /** @type {HTMLElement | null} */
  4939.               const aElement = (this.$ || 0).container;
  4940.               if (!aElement) return console.warn("this.$.container is undefined");
  4941.               const da = this.data;
  4942.               if (!da || !da.startBackgroundColor || !da.endBackgroundColor) return console.warn("this.data is undefined or incorrect");
  4943.               const c1 = this.colorFromDecimal(da.startBackgroundColor);
  4944.               const c2 = this.colorFromDecimal(da.endBackgroundColor);
  4945.               if (typeof c1 !== 'string' || typeof c2 !== 'string') return console.warn('c1, c2 is not a string');
  4946.  
  4947.               // if (!this.__tickerBackgroundInitialChecked__) {
  4948.               //   this.constructor.prototype.__tickerBackgroundInitialChecked__ = true;
  4949.               //   console.log('__tickerBackgroundInitialChecked__')
  4950.               //   this._checkTickerBackgroundChanged();
  4951.               // }
  4952.  
  4953.               aElement.style.setProperty('--ticker-c1', c1);
  4954.               aElement.style.setProperty('--ticker-c2', c2);
  4955.               aElement.classList.add(runTickerClassName);
  4956.               const p = (this.countdownMs / this.countdownDurationMs) * 100;
  4957.               // this._aeStartV = this.countdownMs;
  4958.               // this._aeStartT = this.countdownDurationMs;
  4959.               if (!(p >= 0 && p <= 100)) {
  4960.                 console.warn('incorrect time ratio', p);
  4961.               } else {
  4962.                 /*
  4963.                 const u0 = p.toFixed(4) + '%';
  4964.                 this._runnerAE = animate.call(aElement,
  4965.                   [
  4966.                     { '--ticker-rtime': u0 },
  4967.                     { '--ticker-rtime': '0%' }
  4968.                   ]
  4969.                   ,
  4970.                   {
  4971.                     fill: "forwards",
  4972.                     duration: this.countdownMs,
  4973.                     easing: "linear"
  4974.                   }
  4975.                 );
  4976.                 */
  4977.  
  4978.                 let timingFn = 'linear';
  4979.  
  4980.                 const totalDuration = this.countdownDurationMs;
  4981.  
  4982.                 if (ATTEMPT_ANIMATED_TICKER_BACKGROUND === 'steps') {
  4983.  
  4984.                   // @ step timing [min. 0.2%]
  4985.                   let stepInterval = 0.2; // unit: %
  4986.                   if (totalDuration > 400000) stepInterval = 0.2;
  4987.                   else if (totalDuration > 200000) stepInterval = 0.5;
  4988.                   else if (totalDuration > 100000) stepInterval = 1;
  4989.                   else if (totalDuration > 50000) stepInterval = 2;
  4990.                   else if (totalDuration > 25000) stepInterval = 5;
  4991.                   else stepInterval = 5;
  4992.  
  4993.                   let numOfSteps = Math.round(100 / stepInterval);
  4994.  
  4995.                   if (numOfSteps > TICKER_MAX_STEPS_LIMIT) numOfSteps = TICKER_MAX_STEPS_LIMIT;
  4996.                   if (numOfSteps < 5) numOfSteps = 5;
  4997.  
  4998.                   timingFn = `steps(${numOfSteps}, end)`;
  4999.  
  5000.                 }
  5001.  
  5002.  
  5003.                 /** @type {Animation} */
  5004.                 const ae = animate.call(aElement,
  5005.                   [
  5006.                     { '--ticker-rtime': '100%' },
  5007.                     { '--ticker-rtime': '0%' }
  5008.                   ]
  5009.                   ,
  5010.                   {
  5011.                     fill: "forwards",
  5012.                     duration: totalDuration,
  5013.                     easing: timingFn
  5014.                   }
  5015.                 );
  5016.  
  5017.                 this._runnerAE = ae;
  5018.  
  5019.                 ae.onfinish = (event) => {
  5020.                   this.onfinish = null;
  5021.                   if (this._runnerAE !== ae) return;
  5022.                   if (this.isAttached === true && !this._r782 && ((this.$ || 0).container || 0).isConnected === true) {
  5023.                     this._aeFinished(event);
  5024.                   }
  5025.                 }
  5026.  
  5027.                 let bq = (1.0 - (this.countdownMs / totalDuration)) * totalDuration;
  5028.  
  5029.                 if (bq >= 0 && bq <= totalDuration) {
  5030.  
  5031.                   if (bq > totalDuration - 1) {
  5032.                     ae.currentTime = bq;
  5033.                     // setTimeout(() => {
  5034.                     //   if (this._runnerAE === ae && ae.onfinish) ae.onfinish();
  5035.                     // }, 1);
  5036.                   } else {
  5037.                     ae.currentTime = bq;
  5038.                   }
  5039.                 } else {
  5040.                   console.warn('Error on setting _runnerAE.currentTime!');
  5041.                 }
  5042.  
  5043.  
  5044.                 aeConstructor = ae.constructor; // constructor is from iframe
  5045.                 return ae;
  5046.               }
  5047.             } else {
  5048.               if (!aeConstructor) return console.warn('aeConstructor is undefined');
  5049.               // assume just time update
  5050.               const ae = this._runnerAE;
  5051.               if (!(ae instanceof aeConstructor)) return console.warn('this._runnerAE is not Animation');
  5052.               if (ae.playState !== 'paused') console.warn('ae.playState !== paused');
  5053.               let p = (this.countdownMs / this.countdownDurationMs) * 100;
  5054.               if (!(p >= 0 && p <= 100)) {
  5055.                 console.warn('incorrect time ratio', p);
  5056.               } else {
  5057.                 // let u0 = p.toFixed(4) + '%'
  5058.                 /*
  5059.                 ae.effect.setKeyframes([
  5060.                   { '--ticker-rtime': u0 },
  5061.                   { '--ticker-rtime': '0%' }
  5062.                 ]);
  5063.                 ae.effect.updateTiming({ duration: this.countdownMs });
  5064.                 */
  5065.                 // ae.currentTime = 0;
  5066.  
  5067.  
  5068.  
  5069.                 let bq = (1.0 - (this.countdownMs / this.countdownDurationMs)) * this.countdownDurationMs;
  5070.                 if (bq >= 0 && bq <= this.countdownDurationMs) {
  5071.  
  5072.                   this._runnerAE.currentTime = bq
  5073.                 } else {
  5074.                   console.warn('Error on setting _runnerAE.currentTime!');
  5075.                 }
  5076.  
  5077.  
  5078.                 ae.play();
  5079.                 return ae;
  5080.               }
  5081.             }
  5082.           },
  5083.  
  5084.           _aeFinished: function (event) {
  5085.  
  5086.             if (this._r782) return;
  5087.  
  5088.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5089.               this._throwOut();
  5090.               return;
  5091.             }
  5092.  
  5093.             if (!this._runnerAE) console.warn('Error in .updateTimeout; this._runnerAE is undefined');
  5094.  
  5095.             let lc = window.performance.now();
  5096.             this.countdownMs = Math.max(0, this.countdownMs - (lc - this.lastCountdownTimeMs));
  5097.             if (this.countdownMs > this.countdownDurationMs) this.countdownMs = this.countdownDurationMs;
  5098.             this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = lc;
  5099.             if (this.countdownMs > 76) console.warn('Warning: this.countdownMs is not zero when finished!', this.countdownMs, this, event); // just warning.
  5100.  
  5101.             this.countdownMs = 0;
  5102.             this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = null;
  5103.  
  5104.             if (this.isAttached) {
  5105.               let fastRemoved = false;
  5106.               if (Date.now() - windowShownAt < 80 && typeof this.requestRemoval === 'function') {
  5107.                 // no animation if the video page is switched from background to foreground
  5108.                 // this.hostElement.style.display = 'none';
  5109.                 const id = (this.data || 0).id || 0;
  5110.                 if (!id) this.data = { id: 1 }
  5111.                 try {
  5112.                   this.requestRemoval();
  5113.                   fastRemoved = true;
  5114.                 } catch (e) {
  5115.  
  5116.                 }
  5117.               }
  5118.  
  5119.               if (!fastRemoved) {
  5120.                 "auto" === this.hostElement.style.width && this.setContainerWidth();
  5121.                 this.slideDown();
  5122.               }
  5123.             }
  5124.  
  5125.  
  5126.  
  5127.           },
  5128.  
  5129.  
  5130.           /** @type {()} */
  5131.           _throwOut: function () {
  5132.             this._r782 = 1;
  5133.             Promise.resolve().then(() => {
  5134.               if (typeof this.requestRemoval === 'function') {
  5135.                 const id = (this.data || 0).id;
  5136.                 if (!id) this.data = { id: 1 };
  5137.                 try {
  5138.                   this.requestRemoval();
  5139.                 } catch (e) { }
  5140.               }
  5141.               this.detached();
  5142.               if (this.__dataClientsReady === true) this.__dataClientsReady = false;
  5143.               if (this.__dataEnabled === true) this.__dataEnabled = false;
  5144.               if (this.__dataReady === true) this.__dataReady = false;
  5145.               this.data = null;
  5146.               this.countdownMs = 0;
  5147.               this.lastCountdownTimeMs = null;
  5148.               const hm = this.hostElement || this;
  5149.               if (hm.parentNode) hm.remove();
  5150.               for (let t; t = hm.firstChild;) t.remove();
  5151.             }).catch(e => {
  5152.               console.warn(e);
  5153.             });
  5154.           },
  5155.  
  5156.  
  5157.           // doTimerFnModification
  5158.  
  5159.  
  5160.           /** @type {(a, b)} */
  5161.           startCountdownForTimerFnModA: function (a, b) { // .startCountdown(a.durationSec, a.fullDurationSec)
  5162.             try {
  5163.               // a.durationSec [s] => countdownMs [ms]
  5164.               // a.fullDurationSec [s] => countdownDurationMs [ms] OR countdownMs [ms]
  5165.               // lastCountdownTimeMs => raf ongoing
  5166.               // lastCountdownTimeMs = 0 when rafId = 0 OR countdownDurationMs = 0
  5167.  
  5168.               if (this._r782) return;
  5169.  
  5170.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5171.                 this._throwOut();
  5172.                 return;
  5173.               }
  5174.  
  5175.               // TimerFnModA
  5176.  
  5177.               b = void 0 === b ? 0 : b;
  5178.               if (void 0 !== a) {
  5179.  
  5180.                 this.countdownMs = 1E3 * a; // decreasing from durationSec[s] to zero
  5181.                 this.countdownDurationMs = b ? 1E3 * b : this.countdownMs; // constant throughout the animation
  5182.                 if (!(this.lastCountdownTimeMs || this.isAnimationPaused)) {
  5183.                   this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = performance.now()
  5184.                   this.rafId = 1
  5185.                   if (this._runnerAE) console.warn('Error in .startCountdown; this._runnerAE already created.')
  5186.                   this.detlaSincePausedSecs = 0;
  5187.                   const ae = this._makeAnimator();
  5188.                   if (!ae) console.warn('Error in startCountdown._makeAnimator()');
  5189.  
  5190.                   // if (playerProgressChangedArg1 === null) {
  5191.                   //   console.log('startCountdownForTimerFnModA', this.data)
  5192.                   // }
  5193.  
  5194.                   if (isPlayProgressTriggered && this.isAnimationPaused !== true && this.__ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED__) {
  5195.  
  5196.  
  5197.  
  5198.  
  5199.                     this.playerProgressSec = lastPlayerProgress > 0 ? lastPlayerProgress : 0; // save the progress first
  5200.                     this.isAnimationPaused = true; // trigger isAnimationPausedChanged
  5201.                     this.detlaSincePausedSecs = 0;
  5202.                     this._forceNoDetlaSincePausedSecs783 = 1; // reset this.detlaSincePausedSecs = 0 when resumed
  5203.  
  5204.                     relayPromise = relayPromise || new PromiseExternal();
  5205.  
  5206.                     relayPromise.then(() => {
  5207.                       if (this.isAttached === true && this.countdownDurationMs > 0 && this.isAnimationPaused === true && this.isReplayPaused !== true) {
  5208.                         this.isAnimationPaused = false;
  5209.                       }
  5210.                     });
  5211.  
  5212.  
  5213.                   }
  5214.  
  5215.  
  5216.  
  5217.                 }
  5218.               }
  5219.  
  5220.             } catch (e) {
  5221.               console.warn(e);
  5222.             }
  5223.  
  5224.           },
  5225.  
  5226.  
  5227.  
  5228.           /** @type {(a, b)} */
  5229.           startCountdownForTimerFnModT: function (a, b) { // .startCountdown(a.durationSec, a.fullDurationSec)
  5230.             try {
  5231.               // a.durationSec [s] => countdownMs [ms]
  5232.               // a.fullDurationSec [s] => countdownDurationMs [ms] OR countdownMs [ms]
  5233.               // lastCountdownTimeMs => raf ongoing
  5234.               // lastCountdownTimeMs = 0 when rafId = 0 OR countdownDurationMs = 0
  5235.  
  5236.               if (this._r782) return;
  5237.  
  5238.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5239.                 this._throwOut();
  5240.                 return;
  5241.               }
  5242.  
  5243.               // TimerFnModT
  5244.  
  5245.               // console.log('cProto.startCountdown', tag) // yt-live-chat-ticker-sponsor-item-renderer
  5246.               if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
  5247.               b = void 0 === b ? 0 : b;
  5248.               void 0 !== a && (this.countdownMs = 1E3 * a,
  5249.                 this.countdownDurationMs = b ? 1E3 * b : this.countdownMs,
  5250.                 this.ratio = 1,
  5251.                 this.lastCountdownTimeMs || this.isAnimationPaused || (this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = performance.now(),
  5252.                   this.rafId = rafHub.request(this.boundUpdateTimeout37_)))
  5253.  
  5254.             } catch (e) {
  5255.               console.warn(e);
  5256.             }
  5257.  
  5258.           },
  5259.  
  5260.  
  5261.           /** @type {(a,)} */
  5262.           updateTimeoutForTimerFnModA: function (a) {
  5263.  
  5264.             try {
  5265.  
  5266.               // _lastCountdownTimeMsX0 is required since performance.now() is not fully the same with rAF timestamp
  5267.  
  5268.               if (this._r782) return;
  5269.  
  5270.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5271.                 this._throwOut();
  5272.                 return;
  5273.               }
  5274.  
  5275.               // TimerFnModA
  5276.  
  5277.               if (!this._runnerAE) console.warn('Error in .updateTimeout; this._runnerAE is undefined');
  5278.               if (this.lastCountdownTimeMs !== this._lastCountdownTimeMsX0) {
  5279.                 this.countdownMs = Math.max(0, this.countdownMs - (a - (this.lastCountdownTimeMs || 0)));
  5280.               }
  5281.               if (this.countdownMs > this.countdownDurationMs) this.countdownMs = this.countdownDurationMs;
  5282.               if (this.isAttached && this.countdownMs) {
  5283.                 this.lastCountdownTimeMs = a
  5284.                 const ae = this._makeAnimator(); // request raf
  5285.                 if (!ae) console.warn('Error in startCountdown._makeAnimator()');
  5286.               } else {
  5287.                 (this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = null,
  5288.                   this.isAttached && ("auto" === this.hostElement.style.width && this.setContainerWidth(),
  5289.                     this.slideDown()));
  5290.               }
  5291.  
  5292.             } catch (e) {
  5293.               console.warn(e);
  5294.             }
  5295.  
  5296.  
  5297.           },
  5298.  
  5299.           /** @type {(a,)} */
  5300.           updateTimeoutForTimerFnModT: function (a) {
  5301.  
  5302.             try {
  5303.  
  5304.               // _lastCountdownTimeMsX0 is required since performance.now() is not fully the same with rAF timestamp
  5305.  
  5306.               if (this._r782) return;
  5307.  
  5308.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5309.                 this._throwOut();
  5310.                 return;
  5311.               }
  5312.  
  5313.               // TimerFnModT
  5314.  
  5315.               // console.log('cProto.updateTimeout', tag) // yt-live-chat-ticker-sponsor-item-renderer
  5316.               if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
  5317.               if (this.lastCountdownTimeMs !== this._lastCountdownTimeMsX0) {
  5318.                 this.countdownMs = Math.max(0, this.countdownMs - (a - (this.lastCountdownTimeMs || 0)));
  5319.               }
  5320.               // console.log(703, this.countdownMs)
  5321.               this.ratio = this.countdownMs / this.countdownDurationMs;
  5322.               this.isAttached && this.countdownMs ? (this.lastCountdownTimeMs = a,
  5323.                 this.rafId = rafHub.request(this.boundUpdateTimeout37_)) : (this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = null,
  5324.                   this.isAttached && ("auto" === this.hostElement.style.width && this.setContainerWidth(),
  5325.                     this.slideDown()))
  5326.  
  5327.  
  5328.             } catch (e) {
  5329.               console.warn(e);
  5330.             }
  5331.           },
  5332.  
  5333.           /** @type {(a,b)} */
  5334.           isAnimationPausedChangedForTimerFnModA: function (a, b) {
  5335.  
  5336.             if (this._r782) return;
  5337.  
  5338.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5339.               this._throwOut();
  5340.               return;
  5341.             }
  5342.             let forceNoDetlaSincePausedSecs783 = this._forceNoDetlaSincePausedSecs783;
  5343.             this._forceNoDetlaSincePausedSecs783 = 0;
  5344.  
  5345.             Promise.resolve().then(() => {
  5346.  
  5347.               if (a) {
  5348.  
  5349.                 if (this._runnerAE && this._runnerAE.playState === 'running') {
  5350.  
  5351.                   this._runnerAE.pause()
  5352.                   let lc = window.performance.now();
  5353.                   this.countdownMs = Math.max(0, this.countdownMs - (lc - this.lastCountdownTimeMs));
  5354.                   if (this.countdownMs > this.countdownDurationMs) this.countdownMs = this.countdownDurationMs;
  5355.                   this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = lc;
  5356.                 }
  5357.  
  5358.               } else if (!a && b) {
  5359.  
  5360.  
  5361.                 if (forceNoDetlaSincePausedSecs783) this.detlaSincePausedSecs = 0;
  5362.                 a = this.detlaSincePausedSecs ? (this.lastCountdownTimeMs || 0) + 1000 * this.detlaSincePausedSecs : (this.lastCountdownTimeMs || 0);
  5363.                 this.detlaSincePausedSecs = 0;
  5364.                 this.updateTimeout(a);
  5365.                 this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = window.performance.now();
  5366.  
  5367.               }
  5368.  
  5369.  
  5370.             }).catch(e => {
  5371.               console.log(e);
  5372.             });
  5373.  
  5374.  
  5375.  
  5376.           },
  5377.  
  5378.  
  5379.           /** @type {(a,b)} */
  5380.           isAnimationPausedChangedForTimerFnModT: function (a, b) {
  5381.  
  5382.             if (this._r782) return;
  5383.  
  5384.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5385.               this._throwOut();
  5386.               return;
  5387.             }
  5388.             let forceNoDetlaSincePausedSecs783 = this._forceNoDetlaSincePausedSecs783;
  5389.             this._forceNoDetlaSincePausedSecs783 = 0;
  5390.  
  5391.             Promise.resolve().then(() => {
  5392.  
  5393.               // TimerFnModT
  5394.  
  5395.               // ez++;
  5396.               // if(ez> 1e9) ez=9;
  5397.               if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
  5398.               a ? rafHub.cancel(this.rafId) : !a && b && (a = this.lastCountdownTimeMs || 0,
  5399.                 this.detlaSincePausedSecs && (a = (this.lastCountdownTimeMs || 0) + 1E3 * this.detlaSincePausedSecs,
  5400.                   this.detlaSincePausedSecs = 0),
  5401.                 this.boundUpdateTimeout37_(a),
  5402.                 this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = window.performance.now())
  5403.  
  5404.  
  5405.             }).catch(e => {
  5406.               console.log(e);
  5407.             });
  5408.  
  5409.  
  5410.  
  5411.           },
  5412.  
  5413.  
  5414.           /** @type {(a,b)} */
  5415.           computeContainerStyleForAnimatorEnabled: function (a, b) {
  5416.  
  5417.             if (this._r782) return;
  5418.  
  5419.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5420.               this._throwOut();
  5421.               return;
  5422.             }
  5423.  
  5424.             return (dummyValueForStyleReturn || (dummyValueForStyleReturn = genDummyValueForStyleReturn()));
  5425.  
  5426.           },
  5427.  
  5428.  
  5429.  
  5430.           /** @type {()} */
  5431.           handlePauseReplayForPlaybackProgressState: function () {
  5432.             if (!playerEventsByIframeRelay) return this.handlePauseReplay66.apply(this, arguments);
  5433.  
  5434.             if (onPlayStateChangePromise) {
  5435.  
  5436.               if (this.rtu > 1e9) this.rtu = this.rtu % 1e4;
  5437.               const tid = ++this.rtu;
  5438.  
  5439.               onPlayStateChangePromise.then(() => {
  5440.                 if (tid === this.rtu && !onPlayStateChangePromise) this.handlePauseReplay.apply(this, arguments);
  5441.               });
  5442.  
  5443.               return;
  5444.             }
  5445.  
  5446.             if (playerState !== 2) return;
  5447.             if (this.isAttached) {
  5448.               if (this.rtk > 1e9) this.rtk = this.rtk % 1e4;
  5449.               const tid = ++this.rtk;
  5450.               const tc = relayCount;
  5451.               foregroundPromiseFn().then(() => {
  5452.                 if (tid === this.rtk && tc === relayCount && playerState === 2 && _playerState === playerState) {
  5453.                   this.handlePauseReplay66();
  5454.                 }
  5455.  
  5456.               })
  5457.             }
  5458.           },
  5459.  
  5460.           /** @type {()} */
  5461.           handleResumeReplayForPlaybackProgressState: function () {
  5462.             if (!playerEventsByIframeRelay) return this.handleResumeReplay66.apply(this, arguments);
  5463.  
  5464.  
  5465.             if (onPlayStateChangePromise) {
  5466.  
  5467.               if (this.rtv > 1e9) this.rtv = this.rtv % 1e4;
  5468.               const tid = ++this.rtv;
  5469.  
  5470.               onPlayStateChangePromise.then(() => {
  5471.                 if (tid === this.rtv && !onPlayStateChangePromise) this.handleResumeReplay.apply(this, arguments);
  5472.               });
  5473.  
  5474.               return;
  5475.             }
  5476.  
  5477.  
  5478.             if (playerState !== 1) return;
  5479.             if (this.isAttached) {
  5480.               const tc = relayCount;
  5481.  
  5482.               relayPromise = relayPromise || new PromiseExternal();
  5483.               relayPromise.then(() => {
  5484.                 if (relayCount > tc && playerState === 1 && _playerState === playerState) {
  5485.                   this.handleResumeReplay66();
  5486.                 }
  5487.               });
  5488.             }
  5489.           },
  5490.  
  5491.           /** @type {(a,)} */
  5492.           handleReplayProgressForPlaybackProgressState: function (a) {
  5493.             if (this.isAttached) {
  5494.               const tid = ++this.rtk;
  5495.               foregroundPromiseFn().then(() => {
  5496.                 if (tid === this.rtk) {
  5497.                   this.handleReplayProgress66(a);
  5498.                 }
  5499.               })
  5500.             }
  5501.           }
  5502.  
  5503.  
  5504.         }
  5505.  
  5506.  
  5507.         for (const tag of tagsItemRenderer) { // ##tag##
  5508.           const dummy = document.createElement(tag);
  5509.  
  5510.           const cProto = getProto(dummy);
  5511.           if (!cProto || !cProto.attached) {
  5512.             console.warn(`proto.attached for ${tag} is unavailable.`);
  5513.             continue;
  5514.           }
  5515.  
  5516.           cProto.attached77 = cProto.attached;
  5517.  
  5518.           cProto.attached = dProto.attachedForTickerInit;
  5519.  
  5520.           let rafHackState = 0;
  5521.  
  5522.           let isTimingFunctionHackable = false;
  5523.  
  5524.           let urt = 0;
  5525.  
  5526.           if (typeof cProto.startCountdown === 'function' && typeof cProto.updateTimeout === 'function' && typeof cProto.isAnimationPausedChanged === 'function') {
  5527.  
  5528.             // console.log('startCountdown', typeof cProto.startCountdown)
  5529.             // console.log('updateTimeout', typeof cProto.updateTimeout)
  5530.             // console.log('isAnimationPausedChanged', typeof cProto.isAnimationPausedChanged)
  5531.  
  5532.             isTimingFunctionHackable = fnIntegrity(cProto.startCountdown, '2.66.37') && fnIntegrity(cProto.updateTimeout, '1.76.45') && fnIntegrity(cProto.isAnimationPausedChanged, '2.56.30')
  5533.  
  5534.           } else {
  5535.             console.log("ATTEMPT_ANIMATED_TICKER_BACKGROUND", ` ${tag}`, "Skip Timing Function Modification");
  5536.             continue;
  5537.           }
  5538.  
  5539.  
  5540.           if (ENABLE_RAF_HACK_TICKERS && rafHub !== null) {
  5541.  
  5542.             // cancelable - this.rafId < isAnimationPausedChanged >
  5543.             rafHackState = 1;
  5544.  
  5545.             if (isTimingFunctionHackable) {
  5546.               rafHackState = 2;
  5547.  
  5548.             } else {
  5549.               rafHackState = 4;
  5550.             }
  5551.  
  5552.           }
  5553.  
  5554.           const doAnimator = !!ATTEMPT_ANIMATED_TICKER_BACKGROUND && isTimingFunctionHackable && typeof KeyframeEffect === 'function' && typeof animate === 'function' && typeof cProto.computeContainerStyle === 'function' && typeof cProto.colorFromDecimal === 'function' && isCSSPropertySupported();
  5555.  
  5556.           const doRAFHack = rafHackState === 2;
  5557.  
  5558.           cProto._throwOut = dProto._throwOut;
  5559.  
  5560.           cProto._makeAnimator = doAnimator ? dProto._makeAnimator : null;
  5561.  
  5562.           cProto._aeFinished = doAnimator ? dProto._aeFinished : null;
  5563.  
  5564.  
  5565.           if (ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX) {
  5566.  
  5567.  
  5568.  
  5569.             if (typeof cProto.handlePauseReplay === 'function' && !cProto.handlePauseReplay66 && cProto.handlePauseReplay.length === 0) {
  5570.               urt++;
  5571.               assertor(() => fnIntegrity(cProto.handlePauseReplay, '0.12.4'));
  5572.             } else {
  5573.               console.log('Error for setting cProto.handlePauseReplay', tag)
  5574.             }
  5575.  
  5576.             if (typeof cProto.handleResumeReplay === 'function' && !cProto.handleResumeReplay66 && cProto.handlePauseReplay.length === 0) {
  5577.               urt++;
  5578.               assertor(() => fnIntegrity(cProto.handleResumeReplay, '0.8.2'));
  5579.             } else {
  5580.               console.log('Error for setting cProto.handleResumeReplay', tag)
  5581.             }
  5582.  
  5583.             if (typeof cProto.handleReplayProgress === 'function' && !cProto.handleReplayProgress66 && cProto.handleReplayProgress.length === 1) {
  5584.               urt++;
  5585.               assertor(() => fnIntegrity(cProto.handleReplayProgress, '1.16.13'));
  5586.             } else {
  5587.               console.log('Error for setting cProto.handleReplayProgress', tag)
  5588.             }
  5589.  
  5590.  
  5591.  
  5592.           }
  5593.  
  5594.           const ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED = ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX && urt === 3;
  5595.           cProto.__ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED__ = ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED;
  5596.  
  5597.           if (ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED) {
  5598.  
  5599.             cProto.rtk = 0;
  5600.             cProto.rtu = 0;
  5601.             cProto.rtv = 0;
  5602.  
  5603.             cProto.handlePauseReplay66 = cProto.handlePauseReplay;
  5604.             cProto.handlePauseReplay = dProto.handlePauseReplayForPlaybackProgressState;
  5605.  
  5606.             cProto.handleResumeReplay66 = cProto.handleResumeReplay;
  5607.             cProto.handleResumeReplay = dProto.handleResumeReplayForPlaybackProgressState;
  5608.  
  5609.             cProto.handleReplayProgress66 = cProto.handleReplayProgress;
  5610.             cProto.handleReplayProgress = dProto.handleReplayProgressForPlaybackProgressState;
  5611.  
  5612.           }
  5613.  
  5614.           const doTimerFnModification = (doRAFHack || doAnimator);
  5615.  
  5616.           if (doAnimator && windowShownAt < 0) {
  5617.             windowShownAt = 0;
  5618.             setupEventForWindowShownAt();
  5619.           }
  5620.  
  5621.           if (doTimerFnModification) {
  5622.  
  5623.             cProto.startCountdown = (
  5624.               doAnimator ? dProto.startCountdownForTimerFnModA : dProto.startCountdownForTimerFnModT
  5625.             );
  5626.  
  5627.             // _lastCountdownTimeMsX0 is required since performance.now() is not fully the same with rAF timestamp
  5628.             cProto.updateTimeout = (
  5629.               doAnimator ? dProto.updateTimeoutForTimerFnModA : dProto.updateTimeoutForTimerFnModT
  5630.             );
  5631.  
  5632.  
  5633.             // let ez = 0;
  5634.             cProto.isAnimationPausedChanged = (
  5635.               doAnimator ? dProto.isAnimationPausedChangedForTimerFnModA : dProto.isAnimationPausedChangedForTimerFnModT
  5636.             );
  5637.  
  5638.           }
  5639.  
  5640.           if (doAnimator) {
  5641.  
  5642.             const s = fnIntegrity(cProto.computeContainerStyle);
  5643.             // 2.44.29 or 2.81.31
  5644.             if (s === '2.44.29' || s === '2.81.31') {
  5645.  
  5646.               //     var ofb = da([""])
  5647.               //         pfb = da("background:linear-gradient(90deg, {,{ {,{ {,{);".split("{"))
  5648.  
  5649.               // f.computeContainerStyle = function(a, b) {
  5650.               //     if (!a)
  5651.               //         return pi(ofb);
  5652.               //     var c = this.colorFromDecimal(a.startBackgroundColor);
  5653.               //     a = this.colorFromDecimal(a.endBackgroundColor);
  5654.               //     b = 100 * b + "%";
  5655.               //     return pi(pfb, c, c, b, a, b, a)
  5656.               // }
  5657.  
  5658.             } else {
  5659.               assertor(() => fnIntegrity(cProto.computeContainerStyle, '2.44.29'));
  5660.             }
  5661.  
  5662.             cProto.computeContainerStyle66 = cProto.computeContainerStyle;
  5663.  
  5664.             cProto.computeContainerStyle = dProto.computeContainerStyleForAnimatorEnabled;
  5665.  
  5666.           }
  5667.  
  5668.           if (doTimerFnModification === true) hasTimerModified = true;
  5669.  
  5670.           if (!!ATTEMPT_ANIMATED_TICKER_BACKGROUND) {
  5671.             console.log('ATTEMPT_ANIMATED_TICKER_BACKGROUND', tag, doAnimator ? 'OK' : 'NG');
  5672.           }
  5673.  
  5674.           if (!doAnimator && (rafHackState === 2 || rafHackState === 4)) {
  5675.             console.log('RAF_HACK_TICKERS', tag, doRAFHack ? "OK" : "NG");
  5676.           }
  5677.  
  5678.         }
  5679.  
  5680.         const selector = tags.join(', ');
  5681.         const elements = document.querySelectorAll(selector);
  5682.         if (elements.length >= 1) {
  5683.           for (const elm of elements) {
  5684.             if (insp(elm).isAttached === true) {
  5685.               fpTicker(elm);
  5686.             }
  5687.           }
  5688.         }
  5689.  
  5690.         console.log("[End]");
  5691.         console.groupEnd();
  5692.  
  5693.  
  5694.       }).catch(console.warn);
  5695.  
  5696.       customElements.whenDefined('yt-live-chat-ticker-renderer').then(() => {
  5697.  
  5698.         mightFirstCheckOnYtInit();
  5699.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-ticker-renderer hacks");
  5700.         console.log("[Begin]");
  5701.         (() => {
  5702.  
  5703.           /* pending!!
  5704.  
  5705.           handleLiveChatAction
  5706.  
  5707.           removeTickerItemById
  5708.  
  5709.           _itemsChanged
  5710.           itemsChanged
  5711.  
  5712.           handleMarkChatItemAsDeletedAction
  5713.           handleMarkChatItemsByAuthorAsDeletedAction
  5714.           handleRemoveChatItemByAuthorAction
  5715.  
  5716.  
  5717.           */
  5718.  
  5719.           const tag = "yt-live-chat-ticker-renderer"
  5720.           const dummy = document.createElement(tag);
  5721.  
  5722.           const cProto = getProto(dummy);
  5723.           if (!cProto || !cProto.attached) {
  5724.             console.warn(`proto.attached for ${tag} is unavailable.`);
  5725.             return;
  5726.           }
  5727.  
  5728.           if (AMEND_TICKER_handleLiveChatAction
  5729.             && typeof cProto.handleLiveChatAction === 'function' && !cProto.handleLiveChatAction45 && '|1.63.48|1.64.48|'.includes(`|${fnIntegrity(cProto.handleLiveChatAction)}|`)
  5730.             && typeof cProto.handleLiveChatActions === 'function' && !cProto.handleLiveChatActions45 && fnIntegrity(cProto.handleLiveChatActions) === '1.23.12'
  5731.             && typeof cProto.unshift === 'function' && cProto.unshift.length === 1
  5732.             && typeof cProto.handleMarkChatItemAsDeletedAction === 'function' && cProto.handleMarkChatItemAsDeletedAction.length === 1
  5733.             && typeof cProto.removeTickerItemById === 'function' && cProto.removeTickerItemById.length === 1
  5734.             && typeof cProto.handleMarkChatItemsByAuthorAsDeletedAction === 'function' && cProto.handleMarkChatItemsByAuthorAsDeletedAction.length === 1
  5735.             && typeof cProto.handleRemoveChatItemByAuthorAction === 'function' && cProto.handleRemoveChatItemByAuthorAction.length === 1
  5736.           ) {
  5737.  
  5738.             cProto.handleLiveChatActions45 = cProto.handleLiveChatActions;
  5739.  
  5740.             cProto.handleLiveChatActions = function (a) {
  5741.               /**
  5742.                *
  5743.                   f.handleLiveChatActions = function(a) {
  5744.                       a.length && (a.forEach(this.handleLiveChatAction, this),
  5745.                       this.updateHighlightedItem(),
  5746.                       this.shouldAnimateIn = !0)
  5747.                   }
  5748.                *
  5749.                */
  5750.  
  5751.               if (a.length) {
  5752.                 const batchToken = String.fromCharCode(Date.now() % 26 + 97) + Math.floor(Math.random() * 19861 + 19861).toString(36);
  5753.                 const len = a.length;
  5754.                 if (FIX_BATCH_TICKER_ORDER && len >= 2) {
  5755.                   // Primarily for the initial batch, this is due to replayBuffer._back.
  5756.                   const entries = [];
  5757.                   const entriesI = [];
  5758.                   for (let i = 0; i < len; i++) {
  5759.                     const item = ((a[i] || 0).addLiveChatTickerItemAction || 0).item || 0;
  5760.                     if (item) {
  5761.                       const itemRendererKey = firstObjectKey(item);
  5762.                       const itemRenderer = item[itemRendererKey];
  5763.                       if (itemRenderer) {
  5764.                         let timestampUsec = getTimestampUsec(itemRenderer);
  5765.                         if (timestampUsec !== null) {
  5766.                           timestampUsec = parseInt(timestampUsec);
  5767.                           if (timestampUsec > 0) {
  5768.                             entriesI.push(i);
  5769.                             entries.push({ e: a[i], timestampUsec })
  5770.                           }
  5771.                         }
  5772.                       }
  5773.                     }
  5774.                   }
  5775.                   const mLen = entries.length;
  5776.                   if (mLen >= 2) {
  5777.                     entries.sort((a, b) => {
  5778.                       const diff = a.timestampUsec - b.timestampUsec;
  5779.                       return diff > 0.1 ? 1 : diff < -0.1 ? -1 : 0;
  5780.                     });
  5781.                     for (let j = 0; j < mLen; j++) {
  5782.                       const i = entriesI[j];
  5783.                       a[i] = entries[j].e;
  5784.                     }
  5785.                   }
  5786.                   entries.length = 0;
  5787.                   entriesI.length = 0;
  5788.                 }
  5789.                 for (const action of a) {
  5790.                   action.__batchId45__ = batchToken;
  5791.                   this.handleLiveChatAction(action);
  5792.                 }
  5793.               }
  5794.             }
  5795.  
  5796.             cProto.handleLiveChatAction45 = cProto.handleLiveChatAction;
  5797.  
  5798.  
  5799.  
  5800.             cProto._nszlv_ = 0;
  5801.             cProto._stackedLCAs_ = null;
  5802.             cProto._lastAddItem_ = null;
  5803.             cProto._lastAddItemInStack_ = false;
  5804.             cProto.handleLiveChatAction = function (a) {
  5805.  
  5806.  
  5807.               /**
  5808.                *
  5809.                *
  5810.                 f.handleLiveChatAction = function(a) {
  5811.                     var b = C(a, xO)
  5812.                       , c = C(a, yO)
  5813.                       , d = C(a, o1a)
  5814.                       , e = C(a, p1a);
  5815.                     a = C(a, A1a);
  5816.                     b ? this.unshift("items", b.item) : c ? this.handleMarkChatItemAsDeletedAction(c) : d ? this.removeTickerItemById(d.targetItemId) : e ? this.handleMarkChatItemsByAuthorAsDeletedAction(e) : a && this.handleRemoveChatItemByAuthorAction(a)
  5817.                 }
  5818.                *
  5819.                */
  5820.  
  5821.               // return this.handleLiveChatAction45(a)
  5822.               const { addChatItemAction, addLiveChatTickerItemAction, markChatItemAsDeletedAction,
  5823.                 removeChatItemAction, markChatItemsByAuthorAsDeletedAction, removeChatItemByAuthorAction, __batchId45__ } = a
  5824.  
  5825.               if (addChatItemAction) return;
  5826.  
  5827.  
  5828.               const d = Date.now();
  5829.  
  5830.  
  5831.               // console.log(Object.keys(a));
  5832.  
  5833.               if (this._stackedLCAs_ === null) this._stackedLCAs_ = [];
  5834.               const stackArr = this._stackedLCAs_;
  5835.               let newStackEntry = null;
  5836.               if (addLiveChatTickerItemAction) {
  5837.                 let isDuplicated = false;
  5838.  
  5839.                 const newItem = addLiveChatTickerItemAction.item;
  5840.                 const tickerType = firstObjectKey(newItem);
  5841.                 if (!tickerType) return;
  5842.                 const tickerItem = newItem[tickerType];
  5843.                 const tickerId = tickerItem.id;
  5844.                 if (!tickerId) return;
  5845.  
  5846.                 if (this._lastAddItem_ && this._lastAddItem_.id === tickerId) {
  5847.                   let prevTickerItem = null;
  5848.                   if (this._lastAddItemInStack_) {
  5849.                     const entry = stackArr[stackArr.length - 1]; // only consider the last entry
  5850.                     if (entry && entry.action === 'addItem') {
  5851.                       prevTickerItem = entry.data; // only consider the first item;
  5852.                     }
  5853.                   } else {
  5854.                     prevTickerItem = this.items[0]; // only consider the first item;
  5855.                   }
  5856.                   if (prevTickerItem && prevTickerItem[tickerType]) {
  5857.                     if (prevTickerItem[tickerType].id === tickerId) {
  5858.                       isDuplicated = true;
  5859.                     }
  5860.                   }
  5861.                 }
  5862.                 if (!isDuplicated) {
  5863.                   this._lastAddItem_ = tickerItem;
  5864.                   this._lastAddItemInStack_ = true;
  5865.                   // console.log('newItem', newItem)
  5866.  
  5867.                   const item = newItem;
  5868.                   const key = firstObjectKey(item);
  5869.                   if (key) {
  5870.                     const itemRenderer = item[key] || 0;
  5871.                     if (itemRenderer.fullDurationSec > 0) {
  5872.                       itemRenderer.__actionAt__ = d;
  5873.                     }
  5874.                   }
  5875.  
  5876.  
  5877.                   newStackEntry = { action: 'addItem', data: newItem };
  5878.  
  5879.                 } else {
  5880.                   console.log('handleLiveChatAction Repeated Item', tickerItem.id, tickerItem); // happen in both live and playback. Reason Unknown.
  5881.                   return;
  5882.                 }
  5883.  
  5884.               } else {
  5885.                 markChatItemAsDeletedAction && (newStackEntry = { action: 'mcItemD', data: markChatItemAsDeletedAction });
  5886.                 removeChatItemAction && (newStackEntry = { action: 'removeItemById', data: removeChatItemAction.targetId });
  5887.                 markChatItemsByAuthorAsDeletedAction && (newStackEntry = { action: 'mcItemAD', data: markChatItemsByAuthorAsDeletedAction });
  5888.                 removeChatItemByAuthorAction && (newStackEntry = { action: 'removeItemA', data: removeChatItemByAuthorAction })
  5889.               }
  5890.  
  5891.  
  5892.               if (!newStackEntry) return;
  5893.               stackArr.push(newStackEntry);
  5894.  
  5895.  
  5896.               this._nszlv_++;
  5897.               if (this._nszlv_ > 1e9) this._nszlv_ = 9;
  5898.               const tid = this._nszlv_;
  5899.  
  5900.               newStackEntry.__batchId45__ = __batchId45__ || '';
  5901.               newStackEntry.dateTime = Date.now();
  5902.  
  5903.  
  5904.               foregroundPromiseFn().then(() => {
  5905.  
  5906.                 if (tid !== this._nszlv_) return;
  5907.                 const dateNow = Date.now(); // time difference to shift animation start time shall be considered. (pending)
  5908.                 const stackArr = this._stackedLCAs_.slice(0);
  5909.                 this._stackedLCAs_.length = 0;
  5910.                 this._lastAddItemInStack_ = false;
  5911.                 let lastDateTime = 0;
  5912.                 let prevBatchId = '';
  5913.                 const addItems = [];
  5914.                 // const previousShouldAnimateIn = this.shouldAnimateIn;
  5915.  
  5916.                 const addItemsFx = () => {
  5917.  
  5918.                   if (addItems.length >= 1) {
  5919.                     const eArr = addItems.slice(0);
  5920.                     addItems.length = 0;
  5921.                     if (ADJUST_TICKER_DURATION_ALIGN_RENDER_TIME) {
  5922.  
  5923.                       const arr = []; // size of arr <= size of eArr
  5924.                       const d = Date.now();
  5925.                       for (const item of eArr) {
  5926.                         const key = firstObjectKey(item);
  5927.                         if (key) {
  5928.  
  5929.  
  5930.                           const itemRenderer = item[key] || 0;
  5931.                           const { durationSec, fullDurationSec, __actionAt__ } = itemRenderer;
  5932.                           if (__actionAt__ > 0 && durationSec > 0 && fullDurationSec > 0) {
  5933.  
  5934.  
  5935.                             const offset = d - __actionAt__;
  5936.                             if (offset > 0 && typeof durationSec === 'number' && typeof fullDurationSec === 'number' && fullDurationSec >= durationSec) {
  5937.                               const adjustedDurationSec = durationSec - Math.floor(offset / 1000);
  5938.                               if (adjustedDurationSec < durationSec) { // prevent NaN
  5939.                                 // console.log('adjustedDurationSec', adjustedDurationSec);
  5940.                                 if (adjustedDurationSec > 0) {
  5941.                                   // console.log('offset Sec', Math.floor(offset / 1000));
  5942.                                   itemRenderer.durationSec = adjustedDurationSec;
  5943.                                 } else {
  5944.                                   // if adjustedDurationSec equal 0 or invalid
  5945.                                   continue; // skip adding
  5946.                                 }
  5947.                               }
  5948.  
  5949.                             }
  5950.  
  5951.                           }
  5952.  
  5953.                           if (fullDurationSec > 0 && durationSec < 1) continue; // fallback check
  5954.  
  5955.  
  5956.  
  5957.                         }
  5958.                         arr.push(item)
  5959.                         // arr.unshift(item);
  5960.                       }
  5961.  
  5962.  
  5963.                       // console.log(arr.slice(0))
  5964.                       this.unshift("items", ...arr);
  5965.                     } else {
  5966.                       this.unshift("items", ...eArr);
  5967.                     }
  5968.                   }
  5969.                 }
  5970.  
  5971.                 for (const entry of stackArr) {
  5972.  
  5973.                   const { action, data, dateTime, __batchId45__ } = entry;
  5974.  
  5975.                   const finishLastAction = (
  5976.                     (prevBatchId !== __batchId45__ && prevBatchId)
  5977.                     || (dateNow - lastDateTime >= 1000 && dateNow - dateTime < 1000)
  5978.                   );
  5979.  
  5980.                   const addPrevItems = addItems.length >= 1 && (finishLastAction || action !== 'addItem');
  5981.                   lastDateTime = dateTime;
  5982.                   prevBatchId = __batchId45__;
  5983.  
  5984.                   // if (dateNow - dateTime >= 1000 && this.shouldAnimateIn) this.shouldAnimateIn = false;
  5985.  
  5986.  
  5987.                   if (addPrevItems) {
  5988.                     addItemsFx();
  5989.                   }
  5990.                   // if (finishLastAction) {
  5991.                   //   this.updateHighlightedItem();
  5992.                   //   if (!this.shouldAnimateIn) this.shouldAnimateIn = true;
  5993.                   // }
  5994.  
  5995.  
  5996.                   if (action === 'addItem') addItems.unshift(data);
  5997.                   else if (action === 'mcItemD') this.handleMarkChatItemAsDeletedAction(data);
  5998.                   else if (action === 'removeItemById') this.removeTickerItemById(data);
  5999.                   else if (action === 'mcItemAD') this.handleMarkChatItemsByAuthorAsDeletedAction(data);
  6000.                   else if (action === 'removeItemA') this.handleRemoveChatItemByAuthorAction(data);
  6001.  
  6002.                 }
  6003.  
  6004.  
  6005.                 // if (previousShouldAnimateIn && !this.shouldAnimateIn) this.shouldAnimateIn = true;
  6006.  
  6007.                 addItemsFx();
  6008.  
  6009.                 // if (prevBatchId || dateNow - lastDateTime >= 1000) {
  6010.                 //   this.updateHighlightedItem();
  6011.                 //   if (!this.shouldAnimateIn) this.shouldAnimateIn = true;
  6012.                 // }
  6013.  
  6014.               })
  6015.  
  6016.             }
  6017.  
  6018.             console.log("AMEND_TICKER_handleLiveChatAction - OK");
  6019.           } else {
  6020.             console.log("AMEND_TICKER_handleLiveChatAction - NG");
  6021.           }
  6022.  
  6023.           if (RAF_FIX_keepScrollClamped) {
  6024.  
  6025.             // to be improved
  6026.  
  6027.             if (typeof cProto.keepScrollClamped === 'function' && !cProto.keepScrollClamped72 && fnIntegrity(cProto.keepScrollClamped) === '0.17.10') {
  6028.  
  6029.               cProto.keepScrollClamped72 = cProto.keepScrollClamped;
  6030.               cProto.keepScrollClamped = function () {
  6031.                 this._bound_keepScrollClamped = this._bound_keepScrollClamped || this.keepScrollClamped.bind(this);
  6032.                 this.scrollClampRaf = requestAnimationFrame(this._bound_keepScrollClamped);
  6033.                 this.maybeClampScroll()
  6034.               }
  6035.  
  6036.               console.log('RAF_FIX: keepScrollClamped', tag, "OK")
  6037.             } else {
  6038.  
  6039.               assertor(() => fnIntegrity(cProto.keepScrollClamped, '0.17.10'));
  6040.               console.log('RAF_FIX: keepScrollClamped', tag, "NG")
  6041.             }
  6042.  
  6043.           }
  6044.  
  6045.  
  6046.           if (RAF_FIX_scrollIncrementally && typeof cProto.startScrolling === 'function' && typeof cProto.scrollIncrementally === 'function' && fnIntegrity(cProto.startScrolling) === '1.43.31' && fnIntegrity(cProto.scrollIncrementally) === '1.82.43') {
  6047.             // to be replaced by animator
  6048.  
  6049.             cProto.startScrolling = function (a) {
  6050.               this.scrollStopHandle && this.cancelAsync(this.scrollStopHandle);
  6051.               this.asyncHandle && cancelAnimationFrame(this.asyncHandle);
  6052.               this.lastFrameTimestamp = this.scrollStartTime = performance.now();
  6053.               this.scrollRatePixelsPerSecond = a;
  6054.               this._bound_scrollIncrementally = this._bound_scrollIncrementally || this.scrollIncrementally.bind(this);
  6055.               this.asyncHandle = requestAnimationFrame(this._bound_scrollIncrementally)
  6056.             };
  6057.  
  6058.             // related functions: startScrollBack, startScrollingLeft, startScrollingRight, etc.
  6059.  
  6060.             cProto.scrollIncrementally = (RAF_FIX_scrollIncrementally === 2) ? function (a) {
  6061.               const b = a - (this.lastFrameTimestamp || 0);
  6062.               const rate = this.scrollRatePixelsPerSecond
  6063.               const q = b / 1E3 * (rate || 0);
  6064.  
  6065.               const sl = this.$.items.scrollLeft;
  6066.               // console.log(rate, sl, q)
  6067.               if (this.lastFrameTimestamp == this.scrollStartTime) {
  6068.  
  6069.               } else if (q > -1e-5 && q < 1e-5) {
  6070.  
  6071.               } else {
  6072.                 let cond1 = sl > 0 && rate > 0 && q > 0;
  6073.                 let cond2 = sl > 0 && rate < 0 && q < 0;
  6074.                 let cond3 = sl < 1e-5 && sl > -1e-5 && rate > 0 && q > 0;
  6075.                 if (cond1 || cond2 || cond3) {
  6076.                   this.$.items.scrollLeft += q;
  6077.                   this.maybeClampScroll();
  6078.                   this.updateArrows();
  6079.                 }
  6080.               }
  6081.  
  6082.               this.lastFrameTimestamp = a;
  6083.               this._bound_scrollIncrementally = this._bound_scrollIncrementally || this.scrollIncrementally.bind(this);
  6084.               0 < this.$.items.scrollLeft || rate && 0 < rate ? this.asyncHandle = requestAnimationFrame(this._bound_scrollIncrementally) : this.stopScrolling()
  6085.             } : function (a) {
  6086.               const b = a - (this.lastFrameTimestamp || 0);
  6087.               this.$.items.scrollLeft += b / 1E3 * (this.scrollRatePixelsPerSecond || 0);
  6088.               this.maybeClampScroll();
  6089.               this.updateArrows();
  6090.               this.lastFrameTimestamp = a;
  6091.               this._bound_scrollIncrementally = this._bound_scrollIncrementally || this.scrollIncrementally.bind(this);
  6092.               0 < this.$.items.scrollLeft || this.scrollRatePixelsPerSecond && 0 < this.scrollRatePixelsPerSecond ? this.asyncHandle = requestAnimationFrame(this._bound_scrollIncrementally) : this.stopScrolling()
  6093.             };
  6094.  
  6095.             console.log(`RAF_FIX: scrollIncrementally${RAF_FIX_scrollIncrementally}`, tag, "OK")
  6096.           } else {
  6097.             assertor(() => fnIntegrity(cProto.startScrolling, '1.43.31'));
  6098.             assertor(() => fnIntegrity(cProto.scrollIncrementally, '1.82.43'));
  6099.             console.log('RAF_FIX: scrollIncrementally', tag, "NG")
  6100.           }
  6101.  
  6102.  
  6103.           if (CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED && typeof cProto.attached === 'function' && !cProto.attached37 && typeof cProto.detached === 'function' && !cProto.detached37) {
  6104.  
  6105.             cProto.attached37 = cProto.attached;
  6106.             cProto.detached37 = cProto.detached;
  6107.  
  6108.             let naohzId = 0;
  6109.             cProto.__naohzId__ = 0;
  6110.             cProto.attached = function () {
  6111.               Promise.resolve().then(() => {
  6112.  
  6113.                 const hostElement = this.hostElement || this;
  6114.                 if (!(hostElement instanceof HTMLElement)) return;
  6115.                 if (!HTMLElement.prototype.matches.call(hostElement, '.yt-live-chat-renderer')) return;
  6116.                 const ironPage = HTMLElement.prototype.closest.call(hostElement, 'iron-pages.yt-live-chat-renderer');
  6117.                 // or #chat-messages
  6118.                 if (!ironPage) return;
  6119.  
  6120.                 if (this.__naohzId__) removeEventListener.call(ironPage, 'click', this.messageBoxClickHandlerForFade, { capture: false, passive: true });
  6121.                 if (naohzId > 1e9) naohzId = naohzId % 1e4;
  6122.                 this.__naohzId__ = ++naohzId;
  6123.                 ironPage.setAttribute('naohz', `${+this.__naohzId__}`);
  6124.  
  6125.                 addEventListener.call(ironPage, 'click', this.messageBoxClickHandlerForFade, { capture: false, passive: true });
  6126.  
  6127.               });
  6128.               return this.attached37.apply(this, arguments);
  6129.             };
  6130.             cProto.detached = function () {
  6131.               Promise.resolve().then(() => {
  6132.  
  6133.                 const ironPage = document.querySelector(`iron-pages[naohz="${+this.__naohzId__}"]`);
  6134.                 if (!ironPage) return;
  6135.  
  6136.                 removeEventListener.call(ironPage, 'click', this.messageBoxClickHandlerForFade, { capture: false, passive: true });
  6137.  
  6138.               });
  6139.               return this.detached37.apply(this, arguments);
  6140.             };
  6141.  
  6142.             const clickFade = (u) => {
  6143.               u.click();
  6144.             };
  6145.             cProto.messageBoxClickHandlerForFade = async (evt) => {
  6146.  
  6147.               const target = (evt || 0).target || 0;
  6148.               if (!target) return;
  6149.  
  6150.               for (let p = target; p instanceof HTMLElement; p = nodeParent(p)) {
  6151.                 const is = p.is;
  6152.                 if (typeof is === 'string' && is) {
  6153.  
  6154.                   if (is === 'yt-live-chat-pinned-message-renderer') {
  6155.                     return;
  6156.                   }
  6157.                   if (is === 'iron-pages' || is === 'yt-live-chat-renderer' || is === 'yt-live-chat-app') {
  6158.                     const fade = HTMLElement.prototype.querySelector.call(p, 'yt-live-chat-pinned-message-renderer:not([hidden]) #fade');
  6159.                     if (fade) {
  6160.                       Promise.resolve(fade).then(clickFade);
  6161.                       evt && evt.stopPropagation();
  6162.                     }
  6163.                     return;
  6164.                   }
  6165.                   if (is !== 'yt-live-chat-ticker-renderer') {
  6166.                     if (is.startsWith('yt-live-chat-ticker-')) return;
  6167.                     if (!is.endsWith('-renderer')) return;
  6168.                   }
  6169.  
  6170.                 } else {
  6171.                   if ((p.nodeName || '').includes('BUTTON')) return;
  6172.                 }
  6173.  
  6174.               }
  6175.             };
  6176.  
  6177.             console.log("CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED - OK")
  6178.  
  6179.           } else {
  6180.             console.log("CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED - NG")
  6181.           }
  6182.  
  6183.  
  6184.         })();
  6185.  
  6186.         console.log("[End]");
  6187.  
  6188.         console.groupEnd();
  6189.  
  6190.       }).catch(console.warn);
  6191.  
  6192.  
  6193.  
  6194.       if (ENABLE_RAF_HACK_INPUT_RENDERER || DELAY_FOCUSEDCHANGED) {
  6195.  
  6196.         customElements.whenDefined("yt-live-chat-message-input-renderer").then(() => {
  6197.  
  6198.           mightFirstCheckOnYtInit();
  6199.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-message-input-renderer hacks");
  6200.           console.log("[Begin]");
  6201.           (() => {
  6202.  
  6203.  
  6204.  
  6205.             const tag = "yt-live-chat-message-input-renderer"
  6206.             const dummy = document.createElement(tag);
  6207.  
  6208.             const cProto = getProto(dummy);
  6209.             if (!cProto || !cProto.attached) {
  6210.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6211.               return;
  6212.             }
  6213.  
  6214.  
  6215.             if (ENABLE_RAF_HACK_INPUT_RENDERER && rafHub !== null) {
  6216.  
  6217.               let doHack = false;
  6218.               if (typeof cProto.handleTimeout === 'function' && typeof cProto.updateTimeout === 'function') {
  6219.  
  6220.                 // not cancellable
  6221.  
  6222.  
  6223.                 doHack = fnIntegrity(cProto.handleTimeout, '1.27.16') && fnIntegrity(cProto.updateTimeout, '1.50.33');
  6224.  
  6225.               }
  6226.  
  6227.               if (doHack) {
  6228.  
  6229.                 cProto.handleTimeout = function (a) {
  6230.                   console.log('cProto.handleTimeout', tag)
  6231.                   if (!this.boundUpdateTimeout38_) this.boundUpdateTimeout38_ = this.updateTimeout.bind(this);
  6232.                   this.timeoutDurationMs = this.timeoutMs = a;
  6233.                   this.countdownRatio = 1;
  6234.                   0 === this.lastTimeoutTimeMs && rafHub.request(this.boundUpdateTimeout38_)
  6235.                 };
  6236.                 cProto.updateTimeout = function (a) {
  6237.                   console.log('cProto.updateTimeout', tag)
  6238.                   if (!this.boundUpdateTimeout38_) this.boundUpdateTimeout38_ = this.updateTimeout.bind(this);
  6239.                   this.lastTimeoutTimeMs && (this.timeoutMs = Math.max(0, this.timeoutMs - (a - this.lastTimeoutTimeMs)),
  6240.                     this.countdownRatio = this.timeoutMs / this.timeoutDurationMs);
  6241.                   this.isAttached && this.timeoutMs ? (this.lastTimeoutTimeMs = a,
  6242.                     rafHub.request(this.boundUpdateTimeout38_)) : this.lastTimeoutTimeMs = 0
  6243.                 };
  6244.  
  6245.                 console.log('RAF_HACK_INPUT_RENDERER', tag, "OK")
  6246.               } else {
  6247.  
  6248.                 console.log('typeof handleTimeout', typeof cProto.handleTimeout)
  6249.                 console.log('typeof updateTimeout', typeof cProto.updateTimeout)
  6250.  
  6251.                 console.log('RAF_HACK_INPUT_RENDERER', tag, "NG")
  6252.               }
  6253.  
  6254.  
  6255.             }
  6256.  
  6257.             if (DELAY_FOCUSEDCHANGED && typeof cProto.onFocusedChanged === 'function' && cProto.onFocusedChanged.length === 1 && !cProto.onFocusedChanged372) {
  6258.               cProto.onFocusedChanged372 = cProto.onFocusedChanged;
  6259.               cProto.onFocusedChanged = function (a) {
  6260.                 Promise.resolve().then(() => {
  6261.                   if (this.isAttached === true) this.onFocusedChanged372(a);
  6262.                 }).catch(console.warn);
  6263.               }
  6264.             }
  6265.  
  6266.           })();
  6267.  
  6268.           console.log("[End]");
  6269.  
  6270.           console.groupEnd();
  6271.  
  6272.  
  6273.         })
  6274.  
  6275.       }
  6276.  
  6277.  
  6278.       if (ENABLE_RAF_HACK_EMOJI_PICKER && rafHub !== null) {
  6279.  
  6280.  
  6281.         customElements.whenDefined("yt-emoji-picker-renderer").then(() => {
  6282.  
  6283.           mightFirstCheckOnYtInit();
  6284.           groupCollapsed("YouTube Super Fast Chat", " | yt-emoji-picker-renderer hacks");
  6285.           console.log("[Begin]");
  6286.           (() => {
  6287.  
  6288.             const tag = "yt-emoji-picker-renderer"
  6289.             const dummy = document.createElement(tag);
  6290.  
  6291.             const cProto = getProto(dummy);
  6292.             if (!cProto || !cProto.attached) {
  6293.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6294.               return;
  6295.             }
  6296.  
  6297.             let doHack = false;
  6298.             if (typeof cProto.animateScroll_ === 'function') {
  6299.  
  6300.               // not cancellable
  6301.               console.log('animateScroll_', typeof cProto.animateScroll_)
  6302.  
  6303.               doHack = fnIntegrity(cProto.animateScroll_, '1.102.49')
  6304.  
  6305.             }
  6306.  
  6307.             if (doHack) {
  6308.  
  6309.               const querySelector = HTMLElement.prototype.querySelector;
  6310.               const U = (element) => ({
  6311.                 querySelector: (selector) => querySelector.call(element, selector)
  6312.               });
  6313.  
  6314.               cProto.animateScroll_ = function (a) {
  6315.                 // console.log('cProto.animateScroll_', tag) // yt-emoji-picker-renderer
  6316.                 if (!this.boundAnimateScroll39_) this.boundAnimateScroll39_ = this.animateScroll_.bind(this);
  6317.                 this.lastAnimationTime_ || (this.lastAnimationTime_ = a);
  6318.                 a -= this.lastAnimationTime_;
  6319.                 200 > a ? (U(this.hostElement).querySelector("#categories").scrollTop = this.animationStart_ + (this.animationEnd_ - this.animationStart_) * a / 200,
  6320.                   rafHub.request(this.boundAnimateScroll39_)) : (null != this.animationEnd_ && (U(this.hostElement).querySelector("#categories").scrollTop = this.animationEnd_),
  6321.                     this.animationEnd_ = this.animationStart_ = null,
  6322.                     this.lastAnimationTime_ = 0);
  6323.                 this.updateButtons_()
  6324.               }
  6325.  
  6326.               console.log('ENABLE_RAF_HACK_EMOJI_PICKER', tag, "OK")
  6327.             } else {
  6328.  
  6329.               console.log('ENABLE_RAF_HACK_EMOJI_PICKER', tag, "NG")
  6330.             }
  6331.  
  6332.           })();
  6333.  
  6334.           console.log("[End]");
  6335.  
  6336.           console.groupEnd();
  6337.         });
  6338.       }
  6339.  
  6340.       if (ENABLE_RAF_HACK_DOCKED_MESSAGE && rafHub !== null) {
  6341.  
  6342.  
  6343.         customElements.whenDefined("yt-live-chat-docked-message").then(() => {
  6344.  
  6345.           mightFirstCheckOnYtInit();
  6346.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-docked-message hacks");
  6347.           console.log("[Begin]");
  6348.           (() => {
  6349.  
  6350.             const tag = "yt-live-chat-docked-message"
  6351.             const dummy = document.createElement(tag);
  6352.  
  6353.             const cProto = getProto(dummy);
  6354.             if (!cProto || !cProto.attached) {
  6355.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6356.               return;
  6357.             }
  6358.  
  6359.             let doHack = false;
  6360.             if (typeof cProto.detached === 'function' && typeof cProto.checkIntersections === 'function' && typeof cProto.onDockableMessagesChanged === 'function' && typeof cProto.boundCheckIntersections === 'undefined') {
  6361.  
  6362.               // cancelable - this.intersectRAF <detached>
  6363.               // yt-live-chat-docked-message
  6364.               // boundCheckIntersections <-> checkIntersections
  6365.               // onDockableMessagesChanged
  6366.               //  this.intersectRAF = window.requestAnimationFrame(this.boundCheckIntersections);
  6367.  
  6368.               console.log('detached', typeof cProto.detached)
  6369.               console.log('checkIntersections', typeof cProto.checkIntersections)
  6370.               console.log('onDockableMessagesChanged', typeof cProto.onDockableMessagesChanged)
  6371.  
  6372.               doHack = fnIntegrity(cProto.detached, '0.32.22') && fnIntegrity(cProto.checkIntersections, '0.128.85') && fnIntegrity(cProto.onDockableMessagesChanged, '0.20.11')
  6373.  
  6374.             }
  6375.  
  6376.             if (doHack) {
  6377.  
  6378.               cProto.checkIntersections = function () {
  6379.                 // console.log('cProto.checkIntersections', tag)
  6380.                 if (this.dockableMessages.length) {
  6381.                   this.intersectRAF = rafHub.request(this.boundCheckIntersections);
  6382.                   let a = this.dockableMessages[0]
  6383.                     , b = this.hostElement.getBoundingClientRect();
  6384.                   a = a.getBoundingClientRect();
  6385.                   let c = a.top - b.top
  6386.                     , d = 8 >= c;
  6387.                   c = 8 >= c - this.hostElement.clientHeight;
  6388.                   if (d) {
  6389.                     let e;
  6390.                     for (; d;) {
  6391.                       e = this.dockableMessages.shift();
  6392.                       d = this.dockableMessages[0];
  6393.                       if (!d)
  6394.                         break;
  6395.                       d = d.getBoundingClientRect();
  6396.                       c = d.top - b.top;
  6397.                       let f = 8 >= c;
  6398.                       if (8 >= c - a.height)
  6399.                         if (f)
  6400.                           a = d;
  6401.                         else
  6402.                           return;
  6403.                       d = f
  6404.                     }
  6405.                     this.dock(e)
  6406.                   } else
  6407.                     c && this.dockedItem && this.clear()
  6408.                 } else
  6409.                   this.intersectRAF = 0
  6410.               }
  6411.  
  6412.               cProto.onDockableMessagesChanged = function () {
  6413.                 // console.log('cProto.onDockableMessagesChanged', tag) // yt-live-chat-docked-message
  6414.                 this.dockableMessages.length && !this.intersectRAF && (this.intersectRAF = rafHub.request(this.boundCheckIntersections))
  6415.               }
  6416.  
  6417.               cProto.detached = function () {
  6418.                 this.intersectRAF && rafHub.cancel(this.intersectRAF)
  6419.               }
  6420.  
  6421.               console.log('ENABLE_RAF_HACK_DOCKED_MESSAGE', tag, "OK")
  6422.             } else {
  6423.  
  6424.               console.log('ENABLE_RAF_HACK_DOCKED_MESSAGE', tag, "NG")
  6425.             }
  6426.  
  6427.           })();
  6428.  
  6429.           console.log("[End]");
  6430.  
  6431.           console.groupEnd();
  6432.  
  6433.         }).catch(console.warn);
  6434.  
  6435.       }
  6436.  
  6437.       if (FIX_SETSRC_AND_THUMBNAILCHANGE_) {
  6438.  
  6439.  
  6440.         customElements.whenDefined("yt-img-shadow").then(() => {
  6441.  
  6442.           mightFirstCheckOnYtInit();
  6443.           groupCollapsed("YouTube Super Fast Chat", " | yt-img-shadow hacks");
  6444.           console.log("[Begin]");
  6445.           (() => {
  6446.  
  6447.             const tag = "yt-img-shadow"
  6448.             const dummy = document.createElement(tag);
  6449.  
  6450.             const cProto = getProto(dummy);
  6451.             if (!cProto || !cProto.attached) {
  6452.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6453.               return;
  6454.             }
  6455.  
  6456.             if (typeof cProto.thumbnailChanged_ === 'function' && !cProto.thumbnailChanged66_) {
  6457.  
  6458.               cProto.thumbnailChanged66_ = cProto.thumbnailChanged_;
  6459.               cProto.thumbnailChanged_ = function (a) {
  6460.  
  6461.                 if (this.oldThumbnail_ && this.thumbnail && this.oldThumbnail_.thumbnails === this.thumbnail.thumbnails) return;
  6462.                 if (!this.oldThumbnail_ && !this.thumbnail) return;
  6463.  
  6464.                 return this.thumbnailChanged66_.apply(this, arguments)
  6465.  
  6466.               }
  6467.               console.log("cProto.thumbnailChanged_ - OK");
  6468.  
  6469.             } else {
  6470.               console.log("cProto.thumbnailChanged_ - NG");
  6471.  
  6472.             }
  6473.             if (typeof cProto.setSrc_ === 'function' && !cProto.setSrc66_) {
  6474.  
  6475.               cProto.setSrc66_ = cProto.setSrc_;
  6476.               cProto.setSrc_ = function (a) {
  6477.                 if ((((this || 0).$ || 0).img || 0).src === a) return;
  6478.                 return this.setSrc66_.apply(this, arguments)
  6479.               }
  6480.  
  6481.               console.log("cProto.setSrc_ - OK");
  6482.             } else {
  6483.  
  6484.               console.log("cProto.setSrc_ - NG");
  6485.             }
  6486.  
  6487.           })();
  6488.  
  6489.           console.log("[End]");
  6490.  
  6491.           console.groupEnd();
  6492.  
  6493.         }).catch(console.warn);
  6494.  
  6495.       }
  6496.  
  6497.       if (FIX_THUMBNAIL_DATACHANGED) {
  6498.  
  6499.  
  6500.  
  6501.         customElements.whenDefined("yt-live-chat-author-badge-renderer").then(() => {
  6502.  
  6503.           mightFirstCheckOnYtInit();
  6504.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-author-badge-renderer hacks");
  6505.           console.log("[Begin]");
  6506.           (() => {
  6507.  
  6508.             const tag = "yt-live-chat-author-badge-renderer"
  6509.             const dummy = document.createElement(tag);
  6510.  
  6511.             const cProto = getProto(dummy);
  6512.             if (!cProto || !cProto.attached) {
  6513.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6514.               return;
  6515.             }
  6516.  
  6517.  
  6518.             if (typeof cProto.dataChanged === 'function' && !cProto.dataChanged86 && '|1.160.97|1.159.97|'.includes(`|${fnIntegrity(cProto.dataChanged)}|`)) {
  6519.  
  6520.  
  6521.  
  6522.               cProto.dataChanged86 = cProto.dataChanged;
  6523.               cProto.dataChanged = function (a) {
  6524.  
  6525.                 /*
  6526.  
  6527.                   for (var b = xC(Z(this.hostElement).querySelector("#image")); b.firstChild; )
  6528.                       b.removeChild(b.firstChild);
  6529.                   if (a)
  6530.                       if (a.icon) {
  6531.                           var c = document.createElement("yt-icon");
  6532.                           "MODERATOR" === a.icon.iconType && this.enableNewModeratorBadge ? (c.icon = "yt-sys-icons:shield-filled",
  6533.                           c.defaultToFilled = !0) : c.icon = "live-chat-badges:" + a.icon.iconType.toLowerCase();
  6534.                           b.appendChild(c)
  6535.                       } else if (a.customThumbnail) {
  6536.                           c = document.createElement("img");
  6537.                           var d;
  6538.                           (d = (d = KC(a.customThumbnail.thumbnails, 16)) ? lc(oc(d)) : null) ? (c.src = d,
  6539.                           b.appendChild(c),
  6540.                           c.setAttribute("alt", this.hostElement.ariaLabel || "")) : lq(new tm("Could not compute URL for thumbnail",a.customThumbnail))
  6541.                       }
  6542.  
  6543.                 */
  6544.  
  6545.                 const image = ((this || 0).$ || 0).image
  6546.                 if (image && a && image.firstElementChild) {
  6547.                   let exisiting = image.firstElementChild;
  6548.                   if (exisiting === image.lastElementChild) {
  6549.  
  6550.  
  6551.                     if (a.icon && exisiting.nodeName.toUpperCase() === 'YT-ICON') {
  6552.  
  6553.                       let c = exisiting;
  6554.                       if ("MODERATOR" === a.icon.iconType && this.enableNewModeratorBadge) {
  6555.                         if (c.icon !== "yt-sys-icons:shield-filled") c.icon = "yt-sys-icons:shield-filled";
  6556.                         if (c.defaultToFilled !== true) c.defaultToFilled = true;
  6557.                       } else {
  6558.                         let p = "live-chat-badges:" + a.icon.iconType.toLowerCase();;
  6559.                         if (c.icon !== p) c.icon = p;
  6560.                         if (c.defaultToFilled !== false) c.defaultToFilled = false;
  6561.                       }
  6562.                       return;
  6563.  
  6564.  
  6565.                     } else if (a.customThumbnail && exisiting.nodeName.toUpperCase() == 'IMG') {
  6566.  
  6567.                       let c = exisiting;
  6568.                       if (a.customThumbnail.thumbnails.map(e => e.url).includes(c.src)) {
  6569.  
  6570.                         c.setAttribute("alt", this.hostElement.ariaLabel || "");
  6571.                         return;
  6572.                       }
  6573.                       /*
  6574.  
  6575.                       var d;
  6576.                       (d = (d = KC(a.customThumbnail.thumbnails, 16)) ? lc(oc(d)) : null) ? (c.src = d,
  6577.  
  6578.  
  6579.                         c.setAttribute("alt", this.hostElement.ariaLabel || "")) : lq(new tm("Could not compute URL for thumbnail", a.customThumbnail))
  6580.                         */
  6581.                     }
  6582.  
  6583.  
  6584.                   }
  6585.                 }
  6586.                 return this.dataChanged86.apply(this, arguments)
  6587.  
  6588.               }
  6589.               console.log("cProto.dataChanged - OK");
  6590.  
  6591.             } else {
  6592.               assertor(() => fnIntegrity(cProto.dataChanged, '1.160.97'));
  6593.               console.log("cProto.dataChanged - NG");
  6594.  
  6595.             }
  6596.  
  6597.           })();
  6598.  
  6599.           console.log("[End]");
  6600.  
  6601.           console.groupEnd();
  6602.  
  6603.         }).catch(console.warn);
  6604.  
  6605.  
  6606.       }
  6607.  
  6608.  
  6609.       if (FIX_TOOLTIP_DISPLAY) {
  6610.  
  6611.  
  6612.         customElements.whenDefined("tp-yt-paper-tooltip").then(() => {
  6613.  
  6614.           mightFirstCheckOnYtInit();
  6615.           groupCollapsed("YouTube Super Fast Chat", " | tp-yt-paper-tooltip hacks");
  6616.           console.log("[Begin]");
  6617.           (() => {
  6618.  
  6619.             const tag = "tp-yt-paper-tooltip"
  6620.             const dummy = document.createElement(tag);
  6621.  
  6622.             const cProto = getProto(dummy);
  6623.             if (!cProto || !cProto.attached) {
  6624.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6625.               return;
  6626.             }
  6627.  
  6628.             if (typeof cProto.attached === 'function' && typeof cProto.detached === 'function' && cProto._readyClients && cProto._attachDom && cProto.ready && !cProto._readyClients43) {
  6629.  
  6630.               cProto._readyClients43 = cProto._readyClients;
  6631.               cProto._readyClients = function () {
  6632.                 let r = cProto._readyClients43.apply(this, arguments);
  6633.                 if (this.$ && this.$$ && this.$.tooltip) this.root = null; // fix this.root = null != (b = a.root) ? b : this.host
  6634.                 return r;
  6635.               }
  6636.  
  6637.               console.log("_readyClients - OK");
  6638.  
  6639.             } else {
  6640.               console.log("_readyClients - NG");
  6641.  
  6642.             }
  6643.  
  6644.             if (typeof cProto.show === 'function' && !cProto.show17) {
  6645.               cProto.show17 = cProto.show;
  6646.               cProto.show = function () {
  6647.  
  6648.                 let r = this.show17.apply(this, arguments);
  6649.                 this._showing === true && Promise.resolve().then(() => {
  6650.                   const tooltip = (this.$ || 0).tooltip;
  6651.  
  6652.                   if (tooltip && tooltip.firstElementChild === null) {
  6653.                     let text = tooltip.textContent;
  6654.                     if (typeof text === 'string' && text.length >= 2) {
  6655.                       tooltip.textContent = text.trim();
  6656.                     }
  6657.                   }
  6658.                 }).catch(console.warn)
  6659.                 return r;
  6660.               }
  6661.  
  6662.               console.log("trim tooltip content - OK");
  6663.  
  6664.             } else {
  6665.               console.log("trim tooltip content - NG");
  6666.  
  6667.             }
  6668.  
  6669.             /*
  6670.             cProto.updatePosition61 = cProto.updatePosition;
  6671.  
  6672.  
  6673.             cProto.updatePosition = function () {
  6674.  
  6675.  
  6676.               if (this._target && this.offsetParent) {
  6677.                 var a = this.offset;
  6678.                 14 != this.marginTop && 14 == this.offset && (a = this.marginTop);
  6679.                 var b = this.offsetParent.getBoundingClientRect()
  6680.                   , c = this._target.getBoundingClientRect()
  6681.                   , d = this.getBoundingClientRect()
  6682.                   , e = (c.width - d.width) / 2
  6683.                   , h = (c.height - d.height) / 2
  6684.                   , l = c.left - b.left
  6685.                   , m = c.top - b.top;
  6686.                 switch (this.position) {
  6687.                   case "top":
  6688.                     var p = l + e;
  6689.                     var q = m - d.height - a;
  6690.                     break;
  6691.                   case "bottom":
  6692.                     p = l + e;
  6693.                     q = m + c.height + a;
  6694.                     break;
  6695.                   case "left":
  6696.                     p = l - d.width - a;
  6697.                     q = m + h;
  6698.                     break;
  6699.                   case "right":
  6700.                     p = l + c.width + a,
  6701.                       q = m + h;
  6702.                 }
  6703.  
  6704.               if(this.ascee) {
  6705.                 this.fitToVisibleBounds = false;
  6706.               }
  6707.                 this.fitToVisibleBounds ? (b.left + p + d.width > window.innerWidth ? (this.style.right = "0px",
  6708.                   this.style.left = "auto") : (this.style.left = Math.max(0, p) + "px",
  6709.                     this.style.right = "auto"),
  6710.                   b.top + q + d.height > window.innerHeight ? (this.style.bottom = b.height + "px",
  6711.                     this.style.top = "auto") : (this.style.top = Math.max(-b.top, q) + "px",
  6712.                       this.style.bottom = "auto")) : (this.style.left = p + "px",
  6713.                         this.style.top = q + "px")
  6714.               }
  6715.             }
  6716.  
  6717.             cProto.updateStyles61 = cProto.updateStyles;
  6718.             cProto.updateStyles= function(){
  6719.               if(this.ascee) return;
  6720.               return this.updateStyles61.apply(this,arguments);
  6721.             }
  6722.             */
  6723.  
  6724.  
  6725.           })();
  6726.  
  6727.           console.log("[End]");
  6728.  
  6729.           console.groupEnd();
  6730.  
  6731.         }).catch(console.warn);
  6732.  
  6733.  
  6734.  
  6735.       }
  6736.  
  6737.  
  6738.  
  6739.       if (FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK) {
  6740.  
  6741.  
  6742.         const hookDocumentMouseDownSetupFn = () => {
  6743.  
  6744.  
  6745.  
  6746.           let muzTimestamp = 0;
  6747.           let nszDropdown = null;
  6748.  
  6749.  
  6750.  
  6751.           const handlerObject = {
  6752.  
  6753.             // mdHandler282 : function (evt) {
  6754.             //   // console.log(evt, 1, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  6755.             //   if (!evt || !evt.isTrusted) return;
  6756.             //   muzTimestamp = 0;
  6757.             //   nszDropdown = null;
  6758.  
  6759.             //   const hostElement = this.hostElement || this;
  6760.             //   if (!evt || !evt.isTrusted || !hostElement.hasAttribute('menu-visible')) return;
  6761.             //   if (!hostElement.contains(evt.target)) return;
  6762.             //   let targetDropDown = null;
  6763.             //   for(const dropdown of document.querySelectorAll('tp-yt-iron-dropdown.style-scope.yt-live-chat-app')){
  6764.             //     if(dropdown && dropdown.positionTarget && hostElement.contains( dropdown.positionTarget)){
  6765.             //       targetDropDown = dropdown;
  6766.             //     }
  6767.             //   }
  6768.             //   if ((nszDropdown = targetDropDown)) {
  6769.             //     muzTimestamp = Date.now();
  6770.             //     evt.stopImmediatePropagation();
  6771.             //     evt.stopPropagation();
  6772.             //   }
  6773.  
  6774.             // },
  6775.  
  6776.  
  6777.             muHandler282: function (evt) {
  6778.               // console.log(evt, 7, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  6779.               if (!evt || !evt.isTrusted || !muzTimestamp) return;
  6780.               const dropdown = nszDropdown;
  6781.               muzTimestamp = 0;
  6782.               nszDropdown = null;
  6783.  
  6784.               const kurMPC = kRef(currentMenuPivotWR) || 0;
  6785.               const hostElement = kurMPC.hostElement || kurMPC;
  6786.               if (!hostElement.hasAttribute('menu-visible')) return;
  6787.  
  6788.               const chatBanner = HTMLElement.prototype.closest.call(hostElement, 'yt-live-chat-banner-renderer') || 0;
  6789.               if (chatBanner) return;
  6790.  
  6791.               if (dropdown && dropdown.positionTarget && hostElement.contains(dropdown.positionTarget)) {
  6792.  
  6793.                 /*
  6794.                 const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  6795.                 if(parentButton) return;
  6796.                 */
  6797.  
  6798.                 muzTimestamp = Date.now();
  6799.                 evt.stopImmediatePropagation();
  6800.                 evt.stopPropagation();
  6801.                 Promise.resolve(dropdown).then((dropdown) => {
  6802.                   dropdown.cancel();
  6803.                 });
  6804.                 // document.body.click();
  6805.               }
  6806.  
  6807.             },
  6808.  
  6809.             mlHandler282: function (evt) {
  6810.               muzTimestamp = 0;
  6811.               nszDropdown = null;
  6812.             },
  6813.  
  6814.             ckHandler282: function (evt) {
  6815.               // console.log(evt, 3, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  6816.  
  6817.               if (!evt || !evt.isTrusted || !muzTimestamp) return;
  6818.               if (Date.now() - muzTimestamp < 40) {
  6819.  
  6820.                 /*
  6821.                 const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  6822.                 if(parentButton) return;
  6823.                 */
  6824.  
  6825.                 muzTimestamp = Date.now();
  6826.                 evt.stopImmediatePropagation();
  6827.                 evt.stopPropagation();
  6828.               }
  6829.  
  6830.             },
  6831.  
  6832.             tapHandler282: function (evt) {
  6833.               // console.log(evt, 2, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  6834.  
  6835.               if (!evt || !evt.isTrusted || !muzTimestamp) return;
  6836.               if (Date.now() - muzTimestamp < 40) {
  6837.  
  6838.                 /*
  6839.                 const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  6840.                 if(parentButton) return;
  6841.                 */
  6842.  
  6843.                 muzTimestamp = Date.now();
  6844.                 evt.stopImmediatePropagation();
  6845.                 evt.stopPropagation();
  6846.               }
  6847.  
  6848.             },
  6849.  
  6850.  
  6851.             handleEvent(evt) {
  6852.  
  6853.  
  6854.               if (evt) {
  6855.                 const kurMPC = kRef(currentMenuPivotWR) || 0;
  6856.                 const cnt = insp(kurMPC);
  6857.                 const hostElement = cnt.hostElement || cnt;
  6858.                 if (!cnt || cnt.isAttached !== true || hostElement.isConnected !== true) return;
  6859.                 switch (evt.type) {
  6860.                   // case 'mousedown':
  6861.                   // return this.mdHandler282.call(kurMPC, evt);
  6862.                   case 'mouseup':
  6863.                     return this.muHandler282(evt);
  6864.                   case 'mouseleave':
  6865.                     return this.mlHandler282(evt);
  6866.                   case 'tap':
  6867.                     return this.tapHandler282(evt);
  6868.                   case 'click':
  6869.                     return this.ckHandler282(evt);
  6870.                 }
  6871.               }
  6872.  
  6873.             }
  6874.  
  6875.  
  6876.  
  6877.           }
  6878.  
  6879.           document.addEventListener('mousedown', function (evt) {
  6880.  
  6881.             if (!evt || !evt.isTrusted || !evt.target) return;
  6882.  
  6883.  
  6884.  
  6885.             muzTimestamp = 0;
  6886.             nszDropdown = null;
  6887.  
  6888.             /*
  6889.             const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  6890.             if(parentButton){
  6891.               const kurMPC = HTMLElement.prototype.closest.call(parentButton, '[whole-message-clickable]') || 0;
  6892.               if(kurMPC){
  6893.                 evt.preventDefault();
  6894.                 evt.stopImmediatePropagation();
  6895.                 evt.stopPropagation();
  6896.               }
  6897.               return;
  6898.             }
  6899.             */
  6900.  
  6901.             /** @type {HTMLElement | null} */
  6902.             const kurMP = kRef(currentMenuPivotWR);
  6903.             if (!kurMP) return;
  6904.             const kurMPC = HTMLElement.prototype.closest.call(kurMP, '[menu-visible]') || 0;
  6905.  
  6906.             if (!kurMPC || !kurMPC.hasAttribute('whole-message-clickable')) return;
  6907.  
  6908.             if (!kurMPC.isClickableChatRow111 || !kurMPC.isClickableChatRow111() || !HTMLElement.prototype.contains.call(kurMPC, evt.target)) return;
  6909.  
  6910.             const chatBanner = HTMLElement.prototype.closest.call(kurMPC, 'yt-live-chat-banner-renderer') || 0;
  6911.             if (chatBanner) return;
  6912.  
  6913.  
  6914.             let targetDropDown = null;
  6915.             for (const dropdown of document.querySelectorAll('tp-yt-iron-dropdown.style-scope.yt-live-chat-app')) {
  6916.               if (dropdown && dropdown.positionTarget === kurMP) {
  6917.                 targetDropDown = dropdown;
  6918.               }
  6919.             }
  6920.  
  6921.             if (!targetDropDown) return;
  6922.  
  6923.  
  6924.             /*
  6925.             if (parentButton) {
  6926.               evt.preventDefault();
  6927.               evt.stopImmediatePropagation();
  6928.               evt.stopPropagation();
  6929.               currentMenuPivotWR = mWeakRef(kurMPC);
  6930.               return;
  6931.             }
  6932.             */
  6933.  
  6934.             if ((nszDropdown = targetDropDown)) {
  6935.               muzTimestamp = Date.now();
  6936.               evt.stopImmediatePropagation();
  6937.               evt.stopPropagation();
  6938.               currentMenuPivotWR = mWeakRef(kurMPC);
  6939.  
  6940.               const listenOpts = { capture: true, passive: false, once: true };
  6941.  
  6942.               // remove unexcecuted eventHandler
  6943.               document.removeEventListener('mouseup', handlerObject, listenOpts);
  6944.               document.removeEventListener('mouseleave', handlerObject, listenOpts);
  6945.               document.removeEventListener('tap', handlerObject, listenOpts);
  6946.               document.removeEventListener('click', handlerObject, listenOpts);
  6947.  
  6948.               // inject one time eventHandler to by pass events
  6949.               document.addEventListener('mouseup', handlerObject, listenOpts);
  6950.               document.addEventListener('mouseleave', handlerObject, listenOpts);
  6951.               document.addEventListener('tap', handlerObject, listenOpts);
  6952.               document.addEventListener('click', handlerObject, listenOpts);
  6953.  
  6954.             }
  6955.  
  6956.           }, true);
  6957.  
  6958.         }
  6959.  
  6960.  
  6961.         // yt-live-chat-paid-message-renderer ??
  6962.  
  6963.         /*
  6964.  
  6965.         [...(new Set([...document.querySelectorAll('*')].filter(e=>e.is&&('shouldSupportWholeItemClick' in e)).map(e=>e.is))).keys()]
  6966.  
  6967.  
  6968.         "yt-live-chat-ticker-paid-message-item-renderer"
  6969.         "yt-live-chat-ticker-paid-sticker-item-renderer"
  6970.         "yt-live-chat-paid-message-renderer"
  6971.         "yt-live-chat-text-message-renderer"
  6972.         "yt-live-chat-paid-sticker-renderer"
  6973.  
  6974.         */
  6975.  
  6976.  
  6977.         whenDefinedMultiple([
  6978.  
  6979.           "yt-live-chat-paid-message-renderer",
  6980.           "yt-live-chat-membership-item-renderer",
  6981.           "yt-live-chat-paid-sticker-renderer",
  6982.           "yt-live-chat-text-message-renderer",
  6983.           "yt-live-chat-auto-mod-message-renderer",
  6984.  
  6985.           /*
  6986.           "yt-live-chat-ticker-paid-message-item-renderer",
  6987.           "yt-live-chat-ticker-paid-sticker-item-renderer",
  6988.           "yt-live-chat-paid-message-renderer",
  6989.           "yt-live-chat-text-message-renderer",
  6990.           "yt-live-chat-paid-sticker-renderer",
  6991.  
  6992.           "yt-live-chat-ticker-sponsor-item-renderer",
  6993.           "yt-live-chat-banner-header-renderer",
  6994.           "ytd-sponsorships-live-chat-gift-purchase-announcement-renderer",
  6995.           "ytd-sponsorships-live-chat-header-renderer",
  6996.           "ytd-sponsorships-live-chat-gift-redemption-announcement-renderer",
  6997.  
  6998.  
  6999.  
  7000.  
  7001.           "yt-live-chat-auto-mod-message-renderer",
  7002.           "yt-live-chat-text-message-renderer",
  7003.           "yt-live-chat-paid-message-renderer",
  7004.  
  7005.           "yt-live-chat-legacy-paid-message-renderer",
  7006.           "yt-live-chat-membership-item-renderer",
  7007.           "yt-live-chat-paid-sticker-renderer",
  7008.           "yt-live-chat-donation-announcement-renderer",
  7009.           "yt-live-chat-moderation-message-renderer",
  7010.           "ytd-sponsorships-live-chat-gift-purchase-announcement-renderer",
  7011.           "ytd-sponsorships-live-chat-gift-redemption-announcement-renderer",
  7012.           "yt-live-chat-viewer-engagement-message-renderer",
  7013.  
  7014.           */
  7015.  
  7016.  
  7017.         ]).then(sTags => {
  7018.  
  7019.  
  7020.           mightFirstCheckOnYtInit();
  7021.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-message-renderer(s)... hacks");
  7022.           console.log("[Begin]");
  7023.           let doMouseHook = false;
  7024.  
  7025.           const dProto = {
  7026.             isClickableChatRow111: function () {
  7027.               return (
  7028.                 this.data && typeof this.shouldSupportWholeItemClick === 'function' && typeof this.hasModerationOverlayVisible === 'function' &&
  7029.                 this.data.contextMenuEndpoint && this.wholeMessageClickable && this.shouldSupportWholeItemClick() && !this.hasModerationOverlayVisible()
  7030.               ); // follow .onItemTap(a)
  7031.             }
  7032.           };
  7033.  
  7034.           for (const sTag of sTags) { // ##tag##
  7035.  
  7036.  
  7037.             (() => {
  7038.  
  7039.               const tag = sTag;
  7040.               const dummy = document.createElement(tag);
  7041.  
  7042.               const cProto = getProto(dummy);
  7043.               if (!cProto || !cProto.attached) {
  7044.                 console.warn(`proto.attached for ${tag} is unavailable.`);
  7045.                 return;
  7046.               }
  7047.  
  7048.               const dCnt = insp(dummy);
  7049.               if ('wholeMessageClickable' in dCnt && typeof dCnt.hasModerationOverlayVisible === 'function' && typeof dCnt.shouldSupportWholeItemClick === 'function') {
  7050.  
  7051.                 cProto.isClickableChatRow111 = dProto.isClickableChatRow111;
  7052.  
  7053.                 const toHookDocumentMouseDown = typeof cProto.shouldSupportWholeItemClick === 'function' && typeof cProto.hasModerationOverlayVisible === 'function';
  7054.  
  7055.                 if (toHookDocumentMouseDown) {
  7056.                   doMouseHook = true;
  7057.                 }
  7058.  
  7059.                 console.log("shouldSupportWholeItemClick Y", tag);
  7060.  
  7061.               } else {
  7062.  
  7063.                 console.log("shouldSupportWholeItemClick N", tag);
  7064.               }
  7065.  
  7066.  
  7067.             })();
  7068.  
  7069.           }
  7070.  
  7071.  
  7072.           if (doMouseHook) {
  7073.  
  7074.             hookDocumentMouseDownSetupFn();
  7075.  
  7076.  
  7077.             console.log("FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK - Doc MouseEvent OK");
  7078.           }
  7079.  
  7080.           console.log("[End]");
  7081.  
  7082.           console.groupEnd();
  7083.  
  7084.  
  7085.         }).catch(console.warn);
  7086.  
  7087.  
  7088.         // https://www.youtube.com/watch?v=oQzFi1NO7io
  7089.  
  7090.  
  7091.       }
  7092.  
  7093.       if (NO_ITEM_TAP_FOR_NON_STATIONARY_TAP) {
  7094.         let targetElementCntWR = null;
  7095.         let _e0 = null;
  7096.         document.addEventListener('mousedown', (e) => {
  7097.           if (!e || !e.isTrusted) return;
  7098.           let element = e.target;
  7099.           for (; element instanceof HTMLElement; element = element.parentNode) {
  7100.             if (element.is) break;
  7101.           }
  7102.           if (!element || !element.is) return;
  7103.           const cnt = insp(element);
  7104.           if (typeof cnt.onItemTap === 'function') {
  7105.             cnt._onItemTap_isNonStationary = 0;
  7106.             const cProto = getProto(element);
  7107.             if (!cProto.onItemTap366 && typeof cProto.onItemTap === 'function' && cProto.onItemTap.length === 1) {
  7108.               cProto.onItemTap366 = cProto.onItemTap;
  7109.               cProto.onItemTap = function (a) {
  7110.                 const t = this._onItemTap_isNonStationary;
  7111.                 this._onItemTap_isNonStationary = 0;
  7112.                 if (t > Date.now()) return;
  7113.                 return this.onItemTap366.apply(this, arguments)
  7114.               }
  7115.             }
  7116.             _e0 = e;
  7117.             targetElementCntWR = mWeakRef(cnt);
  7118.           } else {
  7119.             _e0 = null;
  7120.             targetElementCntWR = null;
  7121.           }
  7122.         }, { capture: true, passive: true });
  7123.  
  7124.         document.addEventListener('mouseup', (e) => {
  7125.           if (!e || !e.isTrusted) return;
  7126.           const e0 = _e0;
  7127.           _e0 = null;
  7128.           if (!e0) return;
  7129.           const cnt = kRef(targetElementCntWR);
  7130.           targetElementCntWR = null;
  7131.           if (!cnt) return;
  7132.           if (e.timeStamp - e0.timeStamp > TAP_ACTION_DURATION) {
  7133.             cnt._onItemTap_isNonStationary = Date.now() + 40;
  7134.           } else if ((window.getSelection() + "").trim().replace(/[\u2000-\u200a\u202f\u2800\u200B\u200C\u200D\uFEFF]+/g, '').length >= 1) {
  7135.             cnt._onItemTap_isNonStationary = Date.now() + 40;
  7136.           } else {
  7137.             const dx = e.clientX - e0.clientX;
  7138.             const dy = e.clientY - e0.clientY;
  7139.             const dd = Math.sqrt(dx * dx + dy * dy);
  7140.             const ddmm = px2mm(dd);
  7141.             if (ddmm > 1.0) {
  7142.               cnt._onItemTap_isNonStationary = Date.now() + 40;
  7143.             } else {
  7144.               cnt._onItemTap_isNonStationary = 0;
  7145.             }
  7146.           }
  7147.         }, { capture: true, passive: true });
  7148.  
  7149.       }
  7150.  
  7151.  
  7152.       const __showContextMenu_assign_lock_with_external_unlock_ = function (targetCnt) {
  7153.  
  7154.         let rr = null;
  7155.         const p1 = new Promise(resolve => {
  7156.           rr = resolve;
  7157.         });
  7158.  
  7159.         const p1unlock = () => {
  7160.           const f = rr;
  7161.           if (f) {
  7162.             rr = null;
  7163.             f();
  7164.           }
  7165.         }
  7166.  
  7167.         return {
  7168.           p1,
  7169.           p1unlock,
  7170.           assignLock: (targetCnt, timeout) => {
  7171.             targetCnt.__showContextMenu_assign_lock__(p1);
  7172.             if (timeout) setTimeout(p1unlock, timeout);
  7173.           }
  7174.         }
  7175.  
  7176.       }
  7177.  
  7178.       if (PREREQUEST_CONTEXT_MENU_ON_MOUSE_DOWN) {
  7179.  
  7180.         document.addEventListener('mousedown', function (evt) {
  7181.  
  7182.           const maxloopDOMTreeElements = 4;
  7183.           const maxloopYtCompontents = 4;
  7184.           let j1 = 0;
  7185.           let j2 = 0;
  7186.           let target = (evt || 0).target || 0;
  7187.           if (!target) return;
  7188.  
  7189.  
  7190.           while (target instanceof HTMLElement) {
  7191.             if (++j1 > maxloopDOMTreeElements) break;
  7192.             if (typeof (target.is || insp(target).is || null) === 'string') break;
  7193.             target = nodeParent(target);
  7194.           }
  7195.           const components = [];
  7196.           while (target instanceof HTMLElement) {
  7197.             if (++j2 > maxloopYtCompontents) break;
  7198.             const cnt = insp(target);
  7199.             if (typeof (target.is || cnt.is || null) === 'string') {
  7200.               components.push(target);
  7201.             }
  7202.             if (typeof cnt.showContextMenu === 'function') break;
  7203.             target = target.parentComponent || cnt.parentComponent || null;
  7204.           }
  7205.           if (!(target instanceof HTMLElement)) return;
  7206.           const targetCnt = insp(target);
  7207.           if (typeof targetCnt.handleGetContextMenuResponse_ !== 'function' || typeof targetCnt.handleGetContextMenuError !== 'function') {
  7208.             console.log('Error Found: handleGetContextMenuResponse_ OR handleGetContextMenuError is not defined on a component with showContextMenu')
  7209.             return;
  7210.           }
  7211.  
  7212.           const endpoint = (targetCnt.data || 0).contextMenuEndpoint
  7213.           if (!endpoint) return;
  7214.           if (targetCnt.opened || !targetCnt.isAttached) return;
  7215.  
  7216.           if (typeof targetCnt.__cacheResolvedEndpointData__ !== 'function') {
  7217.             console.log(`preRequest for showContextMenu in ${targetCnt.is} is not yet supported.`)
  7218.           }
  7219.  
  7220.           const targetDollar = indr(target);
  7221.  
  7222.           let doPreRequest = false;
  7223.           if (components.length >= 2 && components[0].id === 'menu-button' && (targetDollar || 0)['menu-button'] === components[0]) {
  7224.             doPreRequest = true;
  7225.           } else if (components.length === 1 && components[0] === target) {
  7226.             doPreRequest = true;
  7227.           } else if (components.length >= 2 && components[0].id === 'author-photo' && (targetDollar || 0)['author-photo'] === components[0]) {
  7228.             doPreRequest = true;
  7229.           }
  7230.           if (doPreRequest === false) {
  7231.             console.log('doPreRequest = fasle on showContextMenu', components);
  7232.             return;
  7233.           }
  7234.  
  7235.           if (typeof targetCnt.__getCachedEndpointData__ !== 'function' || targetCnt.__getCachedEndpointData__(endpoint)) return;
  7236.  
  7237.           if ((typeof targetCnt.__showContextMenu_mutex_unlock_isEmpty__ === 'function') && !targetCnt.__showContextMenu_mutex_unlock_isEmpty__()) {
  7238.             console.log('preRequest on showContextMenu aborted due to stacked network request');
  7239.             return;
  7240.           }
  7241.  
  7242.  
  7243.           const onSuccess = (a) => {
  7244.             /*
  7245.  
  7246.               dQ() && (a = a.response);
  7247.               a.liveChatItemContextMenuSupportedRenderers && a.liveChatItemContextMenuSupportedRenderers.menuRenderer && this.showContextMenu_(a.liveChatItemContextMenuSupportedRenderers.menuRenderer);
  7248.               a.actions && Eu(this.hostElement, "yt-live-chat-actions", [a.actions])
  7249.  
  7250.             */
  7251.  
  7252.             a = a.response || a;
  7253.  
  7254.             if (!a) {
  7255.               console.log('unexpected error in prerequest for showContextMenu.onSuccess');
  7256.               return;
  7257.             }
  7258.  
  7259.             let z = null;
  7260.             a.liveChatItemContextMenuSupportedRenderers && a.liveChatItemContextMenuSupportedRenderers.menuRenderer && (z = a.liveChatItemContextMenuSupportedRenderers.menuRenderer);
  7261.  
  7262.             if (z) {
  7263.               a = z;
  7264.               targetCnt.__cacheResolvedEndpointData__(endpoint, a, true);
  7265.             }
  7266.  
  7267.           };
  7268.           const onFailure = (a) => {
  7269.  
  7270.             /*
  7271.  
  7272.               if (a instanceof Error || a instanceof Object || a instanceof String)
  7273.                   var b = a;
  7274.               hq(new xm("Error encountered calling GetLiveChatItemContextMenu",b))
  7275.  
  7276.             */
  7277.  
  7278.             targetCnt.__cacheResolvedEndpointData__(endpoint, null);
  7279.             // console.log('onFailure', a)
  7280.  
  7281.           };
  7282.  
  7283.           if (doPreRequest) {
  7284.  
  7285.             let propertyCounter = 0;
  7286.             const pm1 = __showContextMenu_assign_lock_with_external_unlock_(targetCnt);
  7287.             const p1Timeout = 800;
  7288.             const proxyKey = '__$$__proxy_to_this__$$__' + Date.now();
  7289.  
  7290.             try {
  7291.  
  7292.               const onSuccessHelperFn = function () {
  7293.                 pm1.p1unlock();
  7294.                 if (propertyCounter !== 5) {
  7295.                   console.log('Error in prerequest for showContextMenu.onSuccessHelperFn')
  7296.                   return;
  7297.                 }
  7298.                 if (this[proxyKey] !== targetCnt) {
  7299.                   console.log('Error in prerequest for showContextMenu.this');
  7300.                   return;
  7301.                 }
  7302.                 onSuccess(...arguments);
  7303.               };
  7304.               const onFailureHelperFn = function () {
  7305.                 pm1.p1unlock();
  7306.                 if (propertyCounter !== 5) {
  7307.                   console.log('Error in prerequest for showContextMenu.onFailureHelperFn')
  7308.                   return;
  7309.                 }
  7310.                 if (this[proxyKey] !== targetCnt) {
  7311.                   console.log('Error in prerequest for showContextMenu.this');
  7312.                   return;
  7313.                 }
  7314.                 onFailure(...arguments);
  7315.  
  7316.               }
  7317.               const fakeTargetCnt = new Proxy({
  7318.                 __showContextMenu_forceNativeRequest__: 1,
  7319.                 __showContextMenu_sync_mode_request__: 1,
  7320.                 get handleGetContextMenuResponse_() {
  7321.                   propertyCounter += 2;
  7322.                   return onSuccessHelperFn;
  7323.                 },
  7324.                 get handleGetContextMenuError() {
  7325.                   propertyCounter += 3;
  7326.                   return onFailureHelperFn;
  7327.                 }
  7328.               }, {
  7329.                 get(_, key, receiver) {
  7330.                   if (key in _) return _[key];
  7331.                   if (key === proxyKey) return targetCnt;
  7332.  
  7333.                   let giveNative = false;
  7334.                   if (key in targetCnt) {
  7335.                     if (key === 'data') giveNative = true;
  7336.                     else if (typeof targetCnt[key] === 'function') giveNative = true;
  7337.                   }
  7338.                   if (giveNative) return targetCnt[key];
  7339.                 }
  7340.               });
  7341.  
  7342.               const fakeEvent = (() => {
  7343.                 const { target, bubbles, cancelable, cancelBubble, srcElement, timeStamp, defaultPrevented, currentTarget, composed } = evt;
  7344.                 const nf = function () { }
  7345.                 const [stopPropagation, stopImmediatePropagation, preventDefault] = [nf, nf, nf];
  7346.  
  7347.                 return {
  7348.                   type: 'tap',
  7349.                   eventPhase: 0,
  7350.                   isTrusted: false,
  7351.                   __composed: true,
  7352.                   bubbles, cancelable, cancelBubble, timeStamp,
  7353.                   target, srcElement, defaultPrevented, currentTarget, composed,
  7354.                   stopPropagation, stopImmediatePropagation, preventDefault
  7355.                 };
  7356.               })(evt);
  7357.               targetCnt.showContextMenu.call(fakeTargetCnt, fakeEvent);
  7358.  
  7359.  
  7360.             } catch (e) {
  7361.               console.warn(e);
  7362.               propertyCounter = 7;
  7363.  
  7364.             }
  7365.             if (propertyCounter !== 5) {
  7366.               console.log('Error in prerequest for showContextMenu', propertyCounter);
  7367.               return;
  7368.             }
  7369.  
  7370.             pm1.assignLock(targetCnt, p1Timeout);
  7371.  
  7372.           }
  7373.  
  7374.  
  7375.  
  7376.  
  7377.  
  7378.  
  7379.         }, true);
  7380.  
  7381.  
  7382.       }
  7383.  
  7384.  
  7385.  
  7386.       /*
  7387.  
  7388.       const w=new Set(); for(const a of document.getElementsByTagName('*')) if(a.showContextMenu && a.showContextMenu_) w.add(a.is||''); console.log([...w.keys()])
  7389.  
  7390.       */
  7391.  
  7392.       whenDefinedMultiple([
  7393.         "yt-live-chat-ticker-sponsor-item-renderer",
  7394.         "yt-live-chat-banner-header-renderer",
  7395.         "yt-live-chat-text-message-renderer",
  7396.         "ytd-sponsorships-live-chat-gift-purchase-announcement-renderer",
  7397.         "ytd-sponsorships-live-chat-header-renderer",
  7398.         "ytd-sponsorships-live-chat-gift-redemption-announcement-renderer",
  7399.  
  7400.         "yt-live-chat-paid-sticker-renderer",
  7401.         "yt-live-chat-viewer-engagement-message-renderer",
  7402.         "yt-live-chat-paid-message-renderer"
  7403.  
  7404.  
  7405.  
  7406.  
  7407.       ]).then(sTags => {
  7408.  
  7409.         mightFirstCheckOnYtInit();
  7410.         groupCollapsed("YouTube Super Fast Chat", " | fixShowContextMenu");
  7411.         console.log("[Begin]");
  7412.  
  7413.  
  7414.         const __showContextMenu_mutex__ = new Mutex();
  7415.         let __showContextMenu_mutex_unlock__ = null;
  7416.         let lastShowMenuTarget = null;
  7417.  
  7418.  
  7419.  
  7420.  
  7421.         const wm37 = new WeakMap();
  7422.  
  7423.         const dProto = {
  7424.  
  7425.  
  7426.           // CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN
  7427.  
  7428.           __cacheResolvedEndpointData__: (endpoint, a, doDeepCopy) => {
  7429.             if (a) {
  7430.               if (doDeepCopy) a = deepCopy(a);
  7431.               wm37.set(endpoint, a);
  7432.             } else {
  7433.               wm37.remove(endpoint);
  7434.             }
  7435.           },
  7436.           __getCachedEndpointData__: function (endpoint) {
  7437.             endpoint = endpoint || (this.data || 0).contextMenuEndpoint || 0;
  7438.             if (endpoint) return wm37.get(endpoint);
  7439.             return null;
  7440.           },
  7441.           /** @type {(resolvedEndpoint: any) => void 0} */
  7442.           __showCachedContextMenu__: function (resolvedEndpoint) { // non-null
  7443.  
  7444.             resolvedEndpoint = deepCopy(resolvedEndpoint);
  7445.             // let b = deepCopy(resolvedEndpoint, ['trackingParams', 'clickTrackingParams'])
  7446.             Promise.resolve(resolvedEndpoint).then(() => {
  7447.               this.__showContextMenu_skip_cacheResolvedEndpointData__ = 1;
  7448.               this.showContextMenu_(resolvedEndpoint);
  7449.               this.__showContextMenu_skip_cacheResolvedEndpointData__ = 0;
  7450.             });
  7451.  
  7452.  
  7453.           },
  7454.  
  7455.  
  7456.  
  7457.           showContextMenuForCacheReopen: function (a) {
  7458.             if (!this.__showContextMenu_forceNativeRequest__) {
  7459.               const endpoint = (this.data || 0).contextMenuEndpoint || 0;
  7460.               if (endpoint) {
  7461.                 const resolvedEndpoint = this.__getCachedEndpointData__(endpoint);
  7462.                 if (resolvedEndpoint) {
  7463.                   this.__showCachedContextMenu__(resolvedEndpoint);
  7464.                   a && a.stopPropagation()
  7465.                   return;
  7466.                 }
  7467.               }
  7468.             }
  7469.             return this.showContextMenu37(a);
  7470.           },
  7471.  
  7472.           showContextMenuForCacheReopen_: function (a) {
  7473.             if (!this.__showContextMenu_skip_cacheResolvedEndpointData__) {
  7474.               const endpoint = (this.data || 0).contextMenuEndpoint || 0;
  7475.               if (endpoint) {
  7476.                 const f = this.__cacheResolvedEndpointData__;
  7477.                 if (typeof f === 'function') f(endpoint, a, true);
  7478.               }
  7479.             }
  7480.             return this.showContextMenu37_(a);
  7481.           },
  7482.  
  7483.           // ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU
  7484.  
  7485.           showContextMenuWithDisableScroll: function (a) {
  7486.  
  7487.             const endpoint = (this.data || 0).contextMenuEndpoint || 0;
  7488.             if (endpoint && typeof this.is === 'string' && this.menuVisible === false && this.menuOpen === false) {
  7489.  
  7490.               const parentComponent = this.parentComponent;
  7491.               if (parentComponent && parentComponent.is === 'yt-live-chat-item-list-renderer' && parentComponent.contextMenuOpen === false && parentComponent.allowScroll === true) {
  7492.                 parentComponent.allowScroll = false;
  7493.               }
  7494.             }
  7495.  
  7496.             return this.showContextMenu48.apply(this, arguments);
  7497.  
  7498.           },
  7499.  
  7500.           // ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU
  7501.  
  7502.           __showContextMenu_mutex_unlock_isEmpty__: () => {
  7503.             return __showContextMenu_mutex_unlock__ === null;
  7504.           },
  7505.  
  7506.           __showContextMenu_assign_lock__: function (p) {
  7507.  
  7508.             const mutex = __showContextMenu_mutex__;
  7509.  
  7510.             mutex.lockWith(unlock => {
  7511.               p.then(unlock);
  7512.             });
  7513.  
  7514.           },
  7515.  
  7516.           showContextMenuWithMutex: function (a) {
  7517.             lastShowMenuTarget = this;
  7518.  
  7519.             if (this.__showContextMenu_sync_mode_request__) {
  7520.  
  7521.               return this.showContextMenu47(a);
  7522.             } else {
  7523.  
  7524.               const mutex = __showContextMenu_mutex__;
  7525.  
  7526.               mutex.lockWith(unlock => {
  7527.                 if (lastShowMenuTarget !== this) {
  7528.                   unlock();
  7529.                   return;
  7530.                 }
  7531.  
  7532.                 setTimeout(unlock, 800); // in case network failure
  7533.                 __showContextMenu_mutex_unlock__ = unlock;
  7534.                 try {
  7535.                   this.showContextMenu47(a);
  7536.                 } catch (e) {
  7537.                   console.warn(e);
  7538.                   unlock(); // in case function script error
  7539.                 }
  7540.  
  7541.               });
  7542.  
  7543.             }
  7544.  
  7545.  
  7546.           },
  7547.  
  7548.           showContextMenuWithMutex_: function (a) {
  7549.  
  7550.             if (__showContextMenu_mutex_unlock__ && this === lastShowMenuTarget) {
  7551.               __showContextMenu_mutex_unlock__();
  7552.               __showContextMenu_mutex_unlock__ = null;
  7553.             }
  7554.             return this.showContextMenu47_(a);
  7555.  
  7556.           }
  7557.  
  7558.         }
  7559.  
  7560.         for (const tag of sTags) { // ##tag##
  7561.  
  7562.  
  7563.  
  7564.           (() => {
  7565.  
  7566.             const dummy = document.createElement(tag);
  7567.  
  7568.             const cProto = getProto(dummy);
  7569.             if (!cProto || !cProto.attached) {
  7570.               console.warn(`proto.attached for ${tag} is unavailable.`);
  7571.               return;
  7572.             }
  7573.  
  7574.  
  7575.  
  7576.  
  7577.             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) {
  7578.  
  7579.               cProto.showContextMenu37_ = cProto.showContextMenu_;
  7580.               cProto.showContextMenu37 = cProto.showContextMenu;
  7581.  
  7582.               cProto.__showContextMenu_forceNativeRequest__ = 0;
  7583.               cProto.__cacheResolvedEndpointData__ = dProto.__cacheResolvedEndpointData__
  7584.               cProto.__getCachedEndpointData__ = dProto.__getCachedEndpointData__
  7585.               cProto.__showCachedContextMenu__ = dProto.__showCachedContextMenu__
  7586.  
  7587.               cProto.showContextMenu = dProto.showContextMenuForCacheReopen;
  7588.  
  7589.               cProto.showContextMenu_ = dProto.showContextMenuForCacheReopen_;
  7590.  
  7591.  
  7592.               console.log("CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN - OK", tag);
  7593.  
  7594.  
  7595.  
  7596.             } else {
  7597.  
  7598.               console.log("CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN - NG", tag);
  7599.  
  7600.             }
  7601.  
  7602.  
  7603.  
  7604.             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) {
  7605.  
  7606.  
  7607.               cProto.showContextMenu48 = cProto.showContextMenu;
  7608.  
  7609.  
  7610.               cProto.showContextMenu = dProto.showContextMenuWithDisableScroll;
  7611.  
  7612.  
  7613.  
  7614.               console.log("ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU - OK", tag);
  7615.  
  7616.  
  7617.  
  7618.             } else {
  7619.  
  7620.               console.log("ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU - NG", tag);
  7621.  
  7622.             }
  7623.  
  7624.  
  7625.  
  7626.  
  7627.  
  7628.             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) {
  7629.  
  7630.               cProto.showContextMenu47_ = cProto.showContextMenu_;
  7631.               cProto.showContextMenu47 = cProto.showContextMenu;
  7632.  
  7633.               cProto.__showContextMenu_mutex_unlock_isEmpty__ = dProto.__showContextMenu_mutex_unlock_isEmpty__;
  7634.               cProto.__showContextMenu_assign_lock__ = dProto.__showContextMenu_assign_lock__;
  7635.               cProto.showContextMenu = dProto.showContextMenuWithMutex;
  7636.               cProto.showContextMenu_ = dProto.showContextMenuWithMutex_;
  7637.  
  7638.               console.log("ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU - OK", tag);
  7639.  
  7640.  
  7641.  
  7642.             } else {
  7643.  
  7644.               console.log("ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU - NG", tag);
  7645.  
  7646.             }
  7647.  
  7648.  
  7649.  
  7650.  
  7651.           })();
  7652.  
  7653.         }
  7654.  
  7655.  
  7656.  
  7657.         console.log("[End]");
  7658.  
  7659.         console.groupEnd();
  7660.  
  7661.       }).catch(console.warn);
  7662.  
  7663.  
  7664.  
  7665.       customElements.whenDefined('tp-yt-iron-dropdown').then(() => {
  7666.  
  7667.         mightFirstCheckOnYtInit();
  7668.         groupCollapsed("YouTube Super Fast Chat", " | tp-yt-iron-dropdown hacks");
  7669.         console.log("[Begin]");
  7670.         (() => {
  7671.  
  7672.           const tag = "tp-yt-iron-dropdown";
  7673.           const dummy = document.createElement(tag);
  7674.  
  7675.           const cProto = getProto(dummy);
  7676.           if (!cProto || !cProto.attached) {
  7677.             console.warn(`proto.attached for ${tag} is unavailable.`);
  7678.             return;
  7679.           }
  7680.  
  7681.  
  7682.           if (USE_VANILLA_DEREF && typeof cProto.__deraf === 'function' && cProto.__deraf.length === 2 && !cProto.__deraf34 && fnIntegrity(cProto.__deraf) === '2.42.24') {
  7683.             cProto.__deraf_hn__ = function (sId, fn) {
  7684.               const rhKey = `_rafHandler_${sId}`;
  7685.               const m = this[rhKey] || (this[rhKey] = new WeakMap());
  7686.               if (m.has(fn)) return m.get(fn);
  7687.               const resFn = () => {
  7688.                 this.__rafs[sId] = null;
  7689.                 fn.call(this)
  7690.               };
  7691.               m.set(fn, resFn);
  7692.               m.set(resFn, resFn);
  7693.               return resFn;
  7694.             };
  7695.             cProto.__deraf34 = cProto.__deraf;
  7696.             cProto.__deraf = function (a, b) { // sId, fn
  7697.               let c = this.__rafs;
  7698.               null !== c[a] && cancelAnimationFrame(c[a]);
  7699.               c[a] = requestAnimationFrame(this.__deraf_hn__(a, b));
  7700.             };
  7701.             console.log("USE_VANILLA_DEREF - OK");
  7702.           } else {
  7703.             console.log("USE_VANILLA_DEREF - NG");
  7704.           }
  7705.  
  7706.           if (FIX_DROPDOWN_DERAF && typeof cProto.__deraf === 'function' && cProto.__deraf.length === 2 && !cProto.__deraf66) {
  7707.             cProto.__deraf66 = cProto.__deraf;
  7708.             cProto.__deraf = function (sId, fn) {
  7709.               if (this.__byPassRAF__) {
  7710.                 Promise.resolve().then(() => {
  7711.                   fn.call(this);
  7712.                 });
  7713.               }
  7714.               let r = this.__deraf66.apply(this, arguments);
  7715.               return r;
  7716.             }
  7717.             console.log("FIX_DROPDOWN_DERAF - OK");
  7718.           } else {
  7719.             console.log("FIX_DROPDOWN_DERAF - NG");
  7720.           }
  7721.  
  7722.  
  7723.           if (BOOST_MENU_OPENCHANGED_RENDERING && typeof cProto.__openedChanged === 'function' && !cProto.__mtChanged__ && fnIntegrity(cProto.__openedChanged) === '0.46.20') {
  7724.  
  7725.             let lastClose = null;
  7726.             let lastOpen = null;
  7727.             let cid = 0;
  7728.  
  7729.             cProto.__mtChanged__ = function (b) {
  7730.  
  7731.               Promise.resolve().then(() => {
  7732.                 this._applyFocus();
  7733.               }).then(() => {
  7734.                 b ? this._renderOpened() : this._renderClosed();
  7735.               }).catch(console.warn);
  7736.  
  7737.             };
  7738.  
  7739.             const __moChanged__ = () => {
  7740.               if (!cid) return;
  7741.               // console.log(553, !!lastOpen, !!lastClose);
  7742.               cid = 0;
  7743.               if (lastOpen && !lastClose && lastOpen.isAttached) {
  7744.                 lastOpen.__mtChanged__(1)
  7745.               } else if (lastClose && !lastOpen && lastClose.isAttached) {
  7746.                 lastClose.__mtChanged__(0);
  7747.               }
  7748.               lastOpen = null;
  7749.               lastClose = null;
  7750.             };
  7751.  
  7752.  
  7753.             if (typeof cProto._openedChanged === 'function' && !cProto._openedChanged66) {
  7754.               cProto._openedChanged66 = cProto._openedChanged;
  7755.               cProto._openedChanged = function () {
  7756.                 // this.__byPassRAF__ = !lastOpen ? true : false; // or just true?
  7757.                 this.__byPassRAF__ = true;
  7758.                 let r = this._openedChanged66.apply(this, arguments);
  7759.                 this.__byPassRAF__ = false;
  7760.                 return r;
  7761.               }
  7762.             }
  7763.  
  7764.             const pSetGet = (key, pdThis, pdBase) => {
  7765.               // note: this is not really a standard way for the getOwnPropertyDescriptors; but it is sufficient to make the job done
  7766.               return {
  7767.                 get: (pdThis[key] || 0).get || (pdBase[key] || 0).get,
  7768.                 set: (pdThis[key] || 0).set || (pdBase[key] || 0).set
  7769.               };
  7770.             };
  7771.  
  7772.             cProto.__modifiedMenuPropsFn__ = function () {
  7773.               const pdThis = Object.getOwnPropertyDescriptors(this.constructor.prototype)
  7774.               const pdBase = Object.getOwnPropertyDescriptors(this)
  7775.  
  7776.               const pdAutoFitOnAttach = pSetGet('autoFitOnAttach', pdThis, pdBase);
  7777.               const pdExpandSizingTargetForScrollbars = pSetGet('expandSizingTargetForScrollbars', pdThis, pdBase);
  7778.               const pdAllowOutsideScroll = pSetGet('allowOutsideScroll', pdThis, pdBase);
  7779.  
  7780.               if (pdAutoFitOnAttach.get || pdAutoFitOnAttach.set) {
  7781.                 console.warn('there is setter/getter for autoFitOnAttach');
  7782.                 return;
  7783.               }
  7784.               if (pdExpandSizingTargetForScrollbars.get || pdExpandSizingTargetForScrollbars.set) {
  7785.                 console.warn('there is setter/getter for expandSizingTargetForScrollbars');
  7786.                 return;
  7787.               }
  7788.               if (!pdAllowOutsideScroll.get || !pdAllowOutsideScroll.set) {
  7789.                 console.warn('there is NO setter-getter for allowOutsideScroll');
  7790.                 return;
  7791.               }
  7792.  
  7793.               let { autoFitOnAttach, expandSizingTargetForScrollbars, allowOutsideScroll } = this;
  7794.  
  7795.               this.__AllowOutsideScrollPD__ = pdAllowOutsideScroll;
  7796.  
  7797.               const fitEnable = CHAT_MENU_REFIT_ALONG_SCROLLING === 2;
  7798.  
  7799.               Object.defineProperties(this, {
  7800.                 autoFitOnAttach: {
  7801.                   get() {
  7802.                     if (fitEnable && this._modifiedMenuPropOn062__) return true;
  7803.                     return autoFitOnAttach;
  7804.                   },
  7805.                   set(nv) {
  7806.                     autoFitOnAttach = nv;
  7807.                     return true;
  7808.                   },
  7809.                   enumerable: true,
  7810.                   configurable: true
  7811.                 }, expandSizingTargetForScrollbars: {
  7812.                   get() {
  7813.                     if (fitEnable && this._modifiedMenuPropOn062__) return true;
  7814.                     return expandSizingTargetForScrollbars;
  7815.                   },
  7816.                   set(nv) {
  7817.                     expandSizingTargetForScrollbars = nv;
  7818.                     return true;
  7819.                   },
  7820.                   enumerable: true,
  7821.                   configurable: true
  7822.                 }, allowOutsideScroll: {
  7823.                   get() {
  7824.                     if (this._modifiedMenuPropOn062__) return true;
  7825.                     return allowOutsideScroll;
  7826.                   },
  7827.                   set(nv) {
  7828.                     allowOutsideScroll = nv;
  7829.                     this.__AllowOutsideScrollPD__.set.call(this, nv);
  7830.                     return true;
  7831.                   },
  7832.                   enumerable: true,
  7833.                   configurable: true
  7834.                 }
  7835.               })
  7836.             };
  7837.  
  7838.             /*
  7839.                // ***** position() to be changed. *****
  7840.               tp-yt-iron-dropdown[class], tp-yt-iron-dropdown[class] #contentWrapper, tp-yt-iron-dropdown[class] ytd-menu-popup-renderer[class] {
  7841.  
  7842.                   overflow: visible !important;
  7843.                   min-width: max-content !important;
  7844.                   max-width: max-content !important;
  7845.                   max-height: max-content !important;
  7846.                   min-height: max-content !important;
  7847.                   white-space: nowrap;
  7848.               }
  7849.  
  7850.             */
  7851.             if (FIX_MENU_POSITION_N_SIZING_ON_SHOWN && typeof cProto.position === 'function' && !cProto.position34 && typeof cProto.refit === 'function') {
  7852.  
  7853.               let m34 = 0;
  7854.               cProto.__refitByPosition__ = function () {
  7855.                 m34++;
  7856.                 if (m34 <= 0) m34 = 0;
  7857.                 if (m34 !== 1) return;
  7858.                 const hostElement = this.hostElement || this;
  7859.                 if (document.visibilityState === 'visible') {
  7860.                   const sizingTarget = this.sizingTarget;
  7861.                   if (!sizingTarget) {
  7862.                     m34 = 0;
  7863.                     return;
  7864.                   }
  7865.  
  7866.                   /*
  7867.                   let useVisibilityCollapse = true;
  7868.                   if (HTMLElement.prototype.querySelector.call(sizingTarget, 'yt-icon:empty')) {
  7869.                     useVisibilityCollapse = false;
  7870.                   }
  7871.  
  7872.                   if (useVisibilityCollapse) {
  7873.                     hostElement.style.visibility = 'collapse';
  7874.                     sizingTarget.style.visibility = 'collapse';
  7875.                   } else {
  7876.                     hostElement.setAttribute('rNgzQ', '');
  7877.                     sizingTarget.setAttribute('rNgzQ', '');
  7878.                   }
  7879.                   */
  7880.                   hostElement.setAttribute('rNgzQ', '');
  7881.                   sizingTarget.setAttribute('rNgzQ', '');
  7882.  
  7883.                   const gn = () => {
  7884.                     /*
  7885.                     if (useVisibilityCollapse) {
  7886.                       hostElement.style.visibility = '';
  7887.                       sizingTarget.style.visibility = '';
  7888.                     } else {
  7889.                       hostElement.removeAttribute('rNgzQ');
  7890.                       sizingTarget.removeAttribute('rNgzQ');
  7891.                     }
  7892.                     */
  7893.                     hostElement.removeAttribute('rNgzQ');
  7894.                     sizingTarget.removeAttribute('rNgzQ');
  7895.                   }
  7896.  
  7897.                   const an = async () => {
  7898.                     while (m34 >= 1) {
  7899.                       await renderReadyPn(sizingTarget);
  7900.                       if (this.opened && this.isAttached && sizingTarget.isConnected === true && sizingTarget === this.sizingTarget) {
  7901.                         if (sizingTarget.matches('ytd-menu-popup-renderer[slot="dropdown-content"].yt-live-chat-app')) this.refit();
  7902.                       }
  7903.                       m34--;
  7904.                     }
  7905.                     m34 = 0;
  7906.                     Promise.resolve().then(gn);
  7907.                   }
  7908.                   setTimeout(an, 4); // wait those resizing function calls
  7909.  
  7910.  
  7911.                 } else {
  7912.                   m34 = 0;
  7913.                 }
  7914.               }
  7915.               cProto.position34 = cProto.position
  7916.               cProto.position = function () {
  7917.                 if (this._positionInitialize_) {
  7918.                   this._positionInitialize_ = 0;
  7919.                   this.__refitByPosition__();
  7920.                 }
  7921.                 let r = cProto.position34.apply(this, arguments);
  7922.                 return r;
  7923.               }
  7924.               console.log("FIX_MENU_POSITION_ON_SHOWN - OK");
  7925.  
  7926.             } else {
  7927.  
  7928.               console.log("FIX_MENU_POSITION_ON_SHOWN - NG");
  7929.  
  7930.             }
  7931.  
  7932.  
  7933.  
  7934.             cProto.__openedChanged = function () {
  7935.               this._positionInitialize_ = 1;
  7936.               // this.removeAttribute('horizontal-align')
  7937.               // this.removeAttribute('vertical-align')
  7938.               if (typeof this.__menuTypeCheck__ !== 'boolean') {
  7939.                 this.__menuTypeCheck__ = true;
  7940.                 if (CHAT_MENU_SCROLL_UNLOCKING) {
  7941.                   this._modifiedMenuPropOn062__ = false;
  7942.                   // console.log(513, this.positionTarget && this.positionTarget.classList.contains('yt-live-chat-text-message-renderer'))
  7943.                   // this.autoFitOnAttach = true;
  7944.                   // this.expandSizingTargetForScrollbars = true;
  7945.                   // this.allowOutsideScroll = true;
  7946.                   // console.log(519,Object.getOwnPropertyDescriptors(this.constructor.prototype))
  7947.                   this.__modifiedMenuPropsFn__();
  7948.                   // this.constrain= function(){}
  7949.                   // this.position= function(){}
  7950.  
  7951.                   // this.autoFitOnAttach = true;
  7952.                   // this.expandSizingTargetForScrollbars = true;
  7953.                   // this.allowOutsideScroll = true;
  7954.                 }
  7955.               }
  7956.               if (CHAT_MENU_SCROLL_UNLOCKING && this.opened) {
  7957.                 let newValue = null;
  7958.                 const positionTarget = this.positionTarget;
  7959.                 if (positionTarget && positionTarget.classList.contains('yt-live-chat-text-message-renderer')) {
  7960.                   if (this._modifiedMenuPropOn062__ === false) {
  7961.                     newValue = true;
  7962.                   }
  7963.                 } else if (this._modifiedMenuPropOn062__ === true) {
  7964.                   newValue = false;
  7965.                 }
  7966.                 if (newValue !== null) {
  7967.                   const beforeAllowOutsideScroll = this.allowOutsideScroll;
  7968.                   this._modifiedMenuPropOn062__ = newValue;
  7969.                   const afterAllowOutsideScroll = this.allowOutsideScroll;
  7970.                   if (beforeAllowOutsideScroll !== afterAllowOutsideScroll) this.__AllowOutsideScrollPD__.set.call(this, afterAllowOutsideScroll);
  7971.                 }
  7972.               }
  7973.  
  7974.               if (this.opened) {
  7975.  
  7976.                 Promise.resolve().then(() => {
  7977.  
  7978.                   this._prepareRenderOpened();
  7979.                 }).then(() => {
  7980.                   this._manager.addOverlay(this);
  7981.                   if (this._manager._overlays.length === 1) {
  7982.                     lastOpen = this;
  7983.                     lastClose = null;
  7984.                   } else {
  7985.                     return 1;
  7986.                   }
  7987.                   // if (cid) {
  7988.                   //   clearTimeout(cid);
  7989.                   //   cid = -1;
  7990.                   //   this.__moChanged__();
  7991.                   //   cid = 0;
  7992.                   // } else {
  7993.                   //   cid = -1;
  7994.                   //   this.__moChanged__();
  7995.                   //   cid = 0;
  7996.                   // }
  7997.                   // cid = cid > 0 ? clearTimeout(cid) : 0;
  7998.                   // console.log(580, this.positionTarget && this.positionTarget.classList.contains('yt-live-chat-text-message-renderer'))
  7999.                   // cid = cid || setTimeout(__moChanged__, delay1);
  8000.                   cid = cid || requestAnimationFrame(__moChanged__);
  8001.                 }).then((r) => {
  8002.  
  8003.                   if (r) this.__mtChanged__(1);
  8004.                 }).catch(console.warn);
  8005.  
  8006.               } else {
  8007.                 Promise.resolve().then(() => {
  8008.                   this._manager.removeOverlay(this);
  8009.                   if (this._manager._overlays.length === 0) {
  8010.                     lastClose = this;
  8011.                     lastOpen = null;
  8012.                   } else {
  8013.                     return 1;
  8014.                   }
  8015.                   // cid = cid > 0 ? clearTimeout(cid) : 0;
  8016.                   // console.log(581, this.positionTarget && this.positionTarget.classList.contains('yt-live-chat-text-message-renderer'))
  8017.                   // cid = cid || setTimeout(__moChanged__, delay1);
  8018.                   cid = cid || requestAnimationFrame(__moChanged__);
  8019.                 }).then((r) => {
  8020.                   if (r) this.__mtChanged__(0);
  8021.                 }).catch(console.warn);
  8022.  
  8023.               }
  8024.  
  8025.             }
  8026.             console.log("BOOST_MENU_OPENCHANGED_RENDERING - OK");
  8027.  
  8028.           } else {
  8029.  
  8030.             assertor(() => fnIntegrity(cProto.__openedChanged, '0.46.20'));
  8031.             console.log("FIX_MENU_REOPEN_RENDER_PERFORMANC_1 - NG");
  8032.  
  8033.           }
  8034.  
  8035.  
  8036.           if (FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK && typeof cProto.__openedChanged === 'function' && !cProto.__openedChanged82) {
  8037.  
  8038.             cProto.__openedChanged82 = cProto.__openedChanged;
  8039.  
  8040.  
  8041.             cProto.__openedChanged = function () {
  8042.  
  8043.               // currentMenuPivotWR = null;
  8044.               // console.log(1480, '__openedChanged.A', this.positionTarget)
  8045.  
  8046.  
  8047.  
  8048.               // if (this.opened && this.positionTarget) {
  8049.  
  8050.               //   const positionTarget = this.positionTarget;
  8051.               //   console.log(1480, '__openedChanged.B', positionTarget)
  8052.               //   currentMenuPivotWR = mWeakRef(positionTarget);
  8053.  
  8054.               // }
  8055.  
  8056.               const positionTarget = this.positionTarget;
  8057.               currentMenuPivotWR = positionTarget ? mWeakRef(positionTarget) : null;
  8058.               return this.__openedChanged82.apply(this, arguments);
  8059.             }
  8060.           }
  8061.  
  8062.  
  8063.           // if(FIX_MENU_CAPTURE_SCROLL && typeof cProto.__onCaptureScroll === 'function' && !cProto.__onCaptureScroll66){
  8064.  
  8065.           //   cProto.__onCaptureScroll66 = cProto.__onCaptureScroll;
  8066.  
  8067.           //   cProto.__onCaptureScroll = function(a){
  8068.  
  8069.           //     const q = true;
  8070.           //     if(this.scrollAction === 'lock'  && q && this.opened){
  8071.  
  8072.           //       // console.log(9107, this.scrollAction, this.__isAnimating, this.opened, a); // lock; __isAnimating = false
  8073.           //       async function af() {
  8074.           //         this.__isAnimating && this._finishRenderOpened();
  8075.           //         if (!this.opened) return;
  8076.           //         this.__restoreScrollPosition();
  8077.           //         await new Promise(r => requestAnimationFrame(r));
  8078.           //         if (!this.opened) return;
  8079.           //         this.opened && this.__isAnimating && this._finishRenderOpened();
  8080.           //         if (!this.opened) return;
  8081.           //         this.__restoreScrollPosition();
  8082.           //         await new Promise(r => requestAnimationFrame(r));
  8083.           //         if (!this.opened) return;
  8084.           //         this.opened && this.__isAnimating && this._finishRenderOpened();
  8085.           //         if (!this.opened) return;
  8086.           //         this.opened && !this.__isAnimating && this.refit();
  8087.           //       }
  8088.           //       Promise.resolve().then(af);
  8089.  
  8090.           //        return cProto.__onCaptureScroll66.apply(this, arguments);
  8091.           //     }else{
  8092.  
  8093.           //       // console.log(9102, this.scrollAction, this.__isAnimating, this.opened, a); // lock
  8094.  
  8095.           //       return cProto.__onCaptureScroll66.apply(this, arguments);
  8096.           //     }
  8097.           //   }
  8098.           //   console.log("FIX_MENU_CAPTURE_SCROLL - OK");
  8099.           // }else{
  8100.           //   console.log("FIX_MENU_CAPTURE_SCROLL - NG");
  8101.  
  8102.           // }
  8103.  
  8104.  
  8105.         })();
  8106.  
  8107.         console.log("[End]");
  8108.  
  8109.         console.groupEnd();
  8110.  
  8111.       }).catch(console.warn);
  8112.  
  8113.  
  8114.  
  8115.  
  8116.  
  8117.  
  8118.  
  8119.  
  8120.       /*
  8121.  
  8122.  
  8123.  
  8124.  
  8125.  
  8126.           var FU = function() {
  8127.               var a = this;
  8128.               this.nextHandle_ = 1;
  8129.               this.clients_ = {};
  8130.               this.JSC$10323_callbacks_ = {};
  8131.               this.unsubscribeAsyncHandles_ = {};
  8132.               this.subscribe = vl(function(b, c, d) {
  8133.                   var e = Geb(b);
  8134.                   if (e in a.clients_)
  8135.                       e in a.unsubscribeAsyncHandles_ && Jq.cancel(a.unsubscribeAsyncHandles_[e]);
  8136.                   else {
  8137.                       a: {
  8138.                           var h = Geb(b), l;
  8139.                           for (l in a.unsubscribeAsyncHandles_) {
  8140.                               var m = a.clients_[l];
  8141.                               if (m instanceof KO) {
  8142.                                   delete a.clients_[l];
  8143.                                   delete a.JSC$10323_callbacks_[l];
  8144.                                   Jq.cancel(a.unsubscribeAsyncHandles_[l]);
  8145.                                   delete a.unsubscribeAsyncHandles_[l];
  8146.                                   i6a(m);
  8147.                                   m.objectId_ = new FQa(h);
  8148.                                   m.register();
  8149.                                   d = m;
  8150.                                   break a
  8151.                               }
  8152.                           }
  8153.                           d.objectSource = b.invalidationId.objectSource;
  8154.                           d.objectId = h;
  8155.                           if (b = b.webAuthConfigurationData)
  8156.                               b.multiUserSessionIndex && (d.sessionIndex = parseInt(b.multiUserSessionIndex, 10)),
  8157.                               b.pageId && (d.pageId = b.pageId);
  8158.                           d = new KO(d,a.handleInvalidationData_.bind(a));
  8159.                           d.register()
  8160.                       }
  8161.                       a.clients_[e] = d;
  8162.                       a.JSC$10323_callbacks_[e] = {}
  8163.                   }
  8164.                   d = a.nextHandle_++;
  8165.                   a.JSC$10323_callbacks_[e][d] = c;
  8166.                   return d
  8167.               })
  8168.           };
  8169.           FU.prototype.unsubscribe = function(a, b) {
  8170.               var c = Geb(a);
  8171.               if (c in this.JSC$10323_callbacks_ && (delete this.JSC$10323_callbacks_[c][b],
  8172.               !this.JSC$10323_callbacks_[c].length)) {
  8173.                   var d = this.clients_[c];
  8174.                   b = Jq.run(function() {
  8175.                       ei(d);
  8176.                       delete this.clients_[c];
  8177.                       delete this.unsubscribeAsyncHandles_[c]
  8178.                   }
  8179.                   .bind(this));
  8180.                   this.unsubscribeAsyncHandles_[c] = b
  8181.               }
  8182.           }
  8183.           ;
  8184.  
  8185.  
  8186.       */
  8187.  
  8188.  
  8189.  
  8190.  
  8191.       const onManagerFound = (dummyManager) => {
  8192.         if (!dummyManager || typeof dummyManager !== 'object') return;
  8193.  
  8194.         const mgrProto = dummyManager.constructor.prototype;
  8195.  
  8196.         let keyCallbackStore = '';
  8197.         for (const [key, v] of Object.entries(dummyManager)) {
  8198.           if (key.includes('_callbacks_')) keyCallbackStore = key;
  8199.         }
  8200.  
  8201.         if (!keyCallbackStore || typeof mgrProto.unsubscribe !== 'function' || mgrProto.unsubscribe.length !== 2) return;
  8202.  
  8203.         if (mgrProto.unsubscribe16) return;
  8204.  
  8205.         mgrProto.unsubscribe16 = mgrProto.unsubscribe;
  8206.  
  8207.         groupCollapsed("YouTube Super Fast Chat", " | *live-chat-manager* hacks");
  8208.         console.log("[Begin]");
  8209.  
  8210.  
  8211.         // const isEmptyObject = (a) => Object.keys(a).length === 0;
  8212.         const isEmptyObject = ((obj) => (firstKey(obj) === null));
  8213.  
  8214.         const idMapper = new Map();
  8215.  
  8216.         const convertId = function (objectId) {
  8217.           if (!objectId || typeof objectId !== 'string') return null;
  8218.  
  8219.           let result = idMapper.get(objectId)
  8220.           if (result) return result;
  8221.           result = atob(objectId.replace(/-/g, "+").replace(/_/g, "/"));
  8222.           idMapper.set(objectId, result)
  8223.           return result;
  8224.         }
  8225.  
  8226.  
  8227.         const rafHandleHolder = [];
  8228.  
  8229.         let pzw = 0;
  8230.         let lza = 0;
  8231.         const rafHandlerFn = () => {
  8232.           pzw = 0;
  8233.           if (rafHandleHolder.length === 1) {
  8234.             const f = rafHandleHolder[0];
  8235.             rafHandleHolder.length = 0;
  8236.             f();
  8237.           } else if (rafHandleHolder.length > 1) {
  8238.             const arr = rafHandleHolder.slice(0);
  8239.             rafHandleHolder.length = 0;
  8240.             for (const fn of arr) fn();
  8241.           }
  8242.         };
  8243.  
  8244.  
  8245.         if (CHANGE_MANAGER_UNSUBSCRIBE) {
  8246.  
  8247.           const checkIntegrityForSubscribe = (mgr) => {
  8248.             if (mgr
  8249.               && typeof mgr.unsubscribe16 === 'function' && mgr.unsubscribe16.length === 2
  8250.               && typeof mgr.subscribe18 === 'function' && (mgr.subscribe18.length === 0 || mgr.subscribe18.length === 3)) {
  8251.  
  8252.               const ns = new Set(Object.keys(mgr));
  8253.               const ms = new Set(Object.keys(mgr.constructor.prototype));
  8254.  
  8255.               if (ns.size >= 6 && ms.size >= 4) {
  8256.                 // including 'subscribe18'
  8257.                 // 'unsubscribe16', 'subscribe19'
  8258.  
  8259.                 let r = 0;
  8260.                 for (const k of ['nextHandle_', 'clients_', keyCallbackStore, 'unsubscribeAsyncHandles_', 'subscribe', 'subscribe18']) {
  8261.                   r += ns.has(k) ? 1 : 0;
  8262.                 }
  8263.                 for (const k of ['unsubscribe', 'handleInvalidationData_', 'unsubscribe16', 'subscribe19']) {
  8264.                   r += ms.has(k) ? 1 : 0;
  8265.                 }
  8266.                 if (r === 10) {
  8267.                   const isObject = (c) => (c || 0).constructor === Object;
  8268.  
  8269.                   if (isObject(mgr['clients_']) && isObject(mgr[keyCallbackStore]) && isObject(mgr['unsubscribeAsyncHandles_'])) {
  8270.  
  8271.                     return true;
  8272.                   }
  8273.  
  8274.  
  8275.                 }
  8276.  
  8277.               }
  8278.  
  8279.  
  8280.             }
  8281.             return false;
  8282.           }
  8283.  
  8284.           mgrProto.subscribe19 = function (o, f, opts) {
  8285.  
  8286.             const ct_clients_ = this.clients_ || 0;
  8287.             const ct_handles_ = this.unsubscribeAsyncHandles_ || 0;
  8288.  
  8289.             if (this.__doCustomSubscribe__ !== true || !ct_clients_ || !ct_handles_) return this.subscribe18.apply(this, arguments);
  8290.  
  8291.             let objectId = ((o || 0).invalidationId || 0).objectId;
  8292.             if (!objectId) return this.subscribe18.apply(this, arguments);
  8293.             objectId = convertId(objectId);
  8294.  
  8295.             // console.log('subscribe', objectId, ct_clients_[objectId], arguments);
  8296.  
  8297.             if (ct_clients_[objectId]) {
  8298.               if (ct_handles_[objectId] < 0) delete ct_handles_[objectId];
  8299.             }
  8300.  
  8301.             return this.subscribe18.apply(this, arguments);
  8302.           }
  8303.  
  8304.           mgrProto.unsubscribe = function (o, d) {
  8305.             if (!this.subscribe18 && typeof this.subscribe === 'function') {
  8306.               this.subscribe18 = this.subscribe;
  8307.               this.subscribe = this.subscribe19;
  8308.               this.__doCustomSubscribe__ = checkIntegrityForSubscribe(this);
  8309.             }
  8310.             const ct_clients_ = this.clients_;
  8311.             const ct_handles_ = this.unsubscribeAsyncHandles_;
  8312.             if (this.__doCustomSubscribe__ !== true || !ct_clients_ || !ct_handles_) return this.unsubscribe16.apply(this, arguments);
  8313.  
  8314.             let objectId = ((o || 0).invalidationId || 0).objectId;
  8315.             if (!objectId) return this.unsubscribe16.apply(this, arguments);
  8316.  
  8317.             objectId = convertId(objectId);
  8318.  
  8319.  
  8320.             // console.log('unsubscribe', objectId, ct_clients_[objectId], arguments);
  8321.  
  8322.             const callbacks = this[keyCallbackStore] || 0;
  8323.             const callbackObj = callbacks[objectId] || 0;
  8324.  
  8325.  
  8326.             if (callbackObj && (delete callbackObj[d], isEmptyObject(callbackObj))) {
  8327.               const w = ct_clients_[objectId];
  8328.               --lza;
  8329.               if (lza < -1e9) lza = -1;
  8330.               const qta = lza;
  8331.               rafHandleHolder.push(() => {
  8332.                 if (qta === ct_handles_[objectId]) {
  8333.                   const o = {
  8334.                     callbacks, callbackObj,
  8335.                     client: ct_clients_[objectId],
  8336.                     handle: ct_handles_[objectId]
  8337.                   };
  8338.                   let p = 0;
  8339.                   try {
  8340.                     if (ct_clients_[objectId] === w) {
  8341.                       w && "function" === typeof w.dispose && w.dispose();
  8342.                       delete ct_clients_[objectId];
  8343.                       delete ct_handles_[objectId];
  8344.                       p = 1;
  8345.                     } else {
  8346.                       // w && "function" === typeof w.dispose && w.dispose();
  8347.                       // delete ct_clients_[objectId];
  8348.                       // delete ct_handles_[objectId];
  8349.                       p = 2;
  8350.                     }
  8351.                   } catch (e) {
  8352.                     console.warn(e);
  8353.                   }
  8354.                   console.log(`unsubscribed: ${p}`, this, o);
  8355.                 }
  8356.               });
  8357.               ct_handles_[objectId] = qta;
  8358.               if (pzw === 0) {
  8359.                 pzw = requestAnimationFrame(rafHandlerFn);
  8360.               }
  8361.             }
  8362.           }
  8363.  
  8364.  
  8365.           console.log("CHANGE_MANAGER_UNSUBSCRIBE - OK")
  8366.  
  8367.         } else {
  8368.  
  8369.           console.log("CHANGE_MANAGER_UNSUBSCRIBE - NG")
  8370.         }
  8371.  
  8372.         console.log("[End]");
  8373.  
  8374.         console.groupEnd();
  8375.  
  8376.       }
  8377.  
  8378.  
  8379.  
  8380.       /*
  8381.  
  8382.  
  8383.               a.prototype.async = function(e, h) {
  8384.                   return 0 < h ? Iq.run(e.bind(this), h) : ~Kq.run(e.bind(this))
  8385.               }
  8386.               ;
  8387.               a.prototype.cancelAsync = function(e) {
  8388.                   0 > e ? Kq.cancel(~e) : Iq.cancel(e)
  8389.               }
  8390.  
  8391.       */
  8392.  
  8393.  
  8394.       (FASTER_ICON_RENDERING && Promise.all(
  8395.         [
  8396.           customElements.whenDefined("yt-icon-shape"),
  8397.           customElements.whenDefined("yt-icon")
  8398.           //  document.createElement('icon-shape'),
  8399.         ]
  8400.       )).then(() => {
  8401.         let cq = 0;
  8402.         let dummys = [document.createElement('yt-icon-shape'), document.createElement('yt-icon')]
  8403.         for (const dummy of dummys) {
  8404.           let cProto = getProto(dummy);
  8405.           if (cProto && typeof cProto.shouldRenderIconShape === 'function' && !cProto.shouldRenderIconShape571 && cProto.shouldRenderIconShape.length === 1) {
  8406.             assertor(() => fnIntegrity(cProto.shouldRenderIconShape, '1.70.38'));
  8407.             cq++;
  8408.             cProto.shouldRenderIconShape571 = cProto.shouldRenderIconShape;
  8409.             cProto.shouldRenderIconShape = function (a) {
  8410.               if (this.isAnimatedIcon) return this.shouldRenderIconShape571(a);
  8411.               if (!this.iconType || !this.iconShapeData) return this.shouldRenderIconShape571(a);
  8412.               if (!this.iconName) return this.shouldRenderIconShape571(a);
  8413.               return false;
  8414.               // console.log(1051, this.iconType)
  8415.               // console.log(1052, this.iconShapeData)
  8416.               // console.log(1053, this.isAnimatedIcon)
  8417.             }
  8418.           }
  8419.           // if(cProto && cProto.switchTemplateAtRegistration){
  8420.           //   cProto.switchTemplateAtRegistration = false;
  8421.           // }
  8422.         }
  8423.         if (cq === 1) {
  8424.           console.log("modified shouldRenderIconShape - Y")
  8425.         } else {
  8426.           console.log("modified shouldRenderIconShape - N", cq)
  8427.         }
  8428.       });
  8429.  
  8430.       customElements.whenDefined("yt-invalidation-continuation").then(() => {
  8431.  
  8432.         let __dummyManager__ = null;
  8433.  
  8434.         mightFirstCheckOnYtInit();
  8435.         groupCollapsed("YouTube Super Fast Chat", " | yt-invalidation-continuation hacks");
  8436.         console.log("[Begin]");
  8437.         (() => {
  8438.  
  8439.           const tag = "yt-invalidation-continuation"
  8440.           const dummy = document.createElement(tag);
  8441.  
  8442.           const cProto = getProto(dummy);
  8443.           if (!cProto || !cProto.attached) {
  8444.             console.warn(`proto.attached for ${tag} is unavailable.`);
  8445.             return;
  8446.           }
  8447.  
  8448.           const dummyManager = insp(dummy).manager_ || 0;
  8449.           __dummyManager__ = dummyManager;
  8450.  
  8451.           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) {
  8452.  
  8453.  
  8454.             const rafHub = new RAFHub();
  8455.  
  8456.             rafHub.keepRAF = true;
  8457.             cProto.async71 = cProto.async;
  8458.             cProto.cancelAsync71 = cProto.cancelAsync;
  8459.  
  8460.             // mostly for subscription timeoutMs 10000ms
  8461.             let mcw = 1; // 1, 3, 5, ...
  8462.             let arr = new Map();
  8463.  
  8464.             let __asyncInited__ = 0;
  8465.             let __timeoutStartId__ = null;
  8466.             const __asyncInit__ = () => {
  8467.  
  8468.               if (__asyncInited__) return;
  8469.               __asyncInited__ = 1;
  8470.  
  8471.               __timeoutStartId__ = setTimeout(() => { });
  8472.               mcw = __timeoutStartId__ * 2 + 1;
  8473.  
  8474.               setInterval(() => {
  8475.  
  8476.                 if (!arr.length) return;
  8477.  
  8478.                 const p = Date.now();
  8479.                 let deleteKeys = [];
  8480.                 arr.forEach((entry, key) => {
  8481.  
  8482.  
  8483.                   if (entry.cid === -1) {
  8484.                     entry.cid = -2;
  8485.                   } else if (entry.cid === -2) {
  8486.  
  8487.                     let offset = p - entry.add
  8488.                     if (offset < 0) offset = 0;
  8489.                     let delay2 = entry.delay - offset;
  8490.                     if (delay2 < 0) delay2 = 0;
  8491.                     entry.cid = setTimeout(entry.q(), delay2);
  8492.                     entry.q = null;
  8493.  
  8494.                   } else if (entry.add + entry.delay < p) {
  8495.                     deleteKeys.push(key);
  8496.  
  8497.                   }
  8498.  
  8499.                 })
  8500.  
  8501.                 for (const key of deleteKeys) arr.delete(key);
  8502.  
  8503.               }, 2000)
  8504.  
  8505.             }
  8506.  
  8507.  
  8508.  
  8509.  
  8510.             cProto.async = function (e, h) {
  8511.  
  8512.               if (!(0 < h)) return this.async71(e, h); // unknown timing Fn
  8513.  
  8514.               if (h < 8000) return this.async71(e, h) * 2; // native setTimeout
  8515.  
  8516.               if (typeof h !== 'number') return this.async71(e, h); // exceptional case
  8517.  
  8518.  
  8519.               if (!this.__asyncInited__) {
  8520.                 this.__asyncInited__ = 1;
  8521.                 __asyncInit__();
  8522.               }
  8523.               mcw += 2; // 2K+3, 2K+4, ...
  8524.               if (mcw > 1e9) mcw = mcw % 1e4;
  8525.               const cid = mcw;
  8526.               const q = () => {
  8527.                 return () => {
  8528.                   console.log('async h > 8000');
  8529.                   e.call(this);
  8530.                 }
  8531.               }
  8532.               // setTimeout(q, delay)
  8533.               arr.set(cid, {
  8534.                 cid: -1, // -1 -> -2 -> cid
  8535.                 add: Date.now(),
  8536.                 q,
  8537.                 delay: h
  8538.               });
  8539.               // console.log('cid-async', cid)
  8540.               return cid;
  8541.  
  8542.             }
  8543.  
  8544.  
  8545.             cProto.cancelAsync = function (e) {
  8546.  
  8547.               if (typeof e !== 'number') return this.cancelAsync71(e); // exceptional case
  8548.  
  8549.               // console.log('cid-unasync', e)
  8550.  
  8551.               if (0 > e) return this.cancelAsync71(e); // unknown timing fn
  8552.  
  8553.               if (e > __timeoutStartId__ * 2) { // __timeoutStartId__ is recorded and min is 2K+1
  8554.  
  8555.                 if ((e % 2) === 0) return this.cancelAsync71(e / 2); // 2(K+1), 2(K+2), ...
  8556.  
  8557.                 if (!arr.has(e)) return; // duplciated cancel
  8558.  
  8559.                 const entry = arr.get(e);
  8560.                 if (entry.cid < 0) {
  8561.                   entry.cid = 0;
  8562.                   arr.delete(e);
  8563.                 } else {
  8564.                   clearTimeout(entry.cid); // cid >= 1
  8565.                   entry.cid = 0;
  8566.                   arr.delete(e);
  8567.                 }
  8568.  
  8569.               } else {
  8570.  
  8571.                 return this.cancelAsync71(e);
  8572.  
  8573.               }
  8574.  
  8575.             }
  8576.  
  8577.             console.log("CHANGE_DATA_FLUSH_ASYNC - OK");
  8578.  
  8579.           } else {
  8580.             console.log("CHANGE_DATA_FLUSH_ASYNC - NOT REQUIRED");
  8581.  
  8582.           }
  8583.  
  8584.         })();
  8585.  
  8586.         console.log("[End]");
  8587.  
  8588.         console.groupEnd();
  8589.  
  8590.  
  8591.  
  8592.         onManagerFound(__dummyManager__);
  8593.  
  8594.       }).catch(console.warn);
  8595.  
  8596.  
  8597.  
  8598.  
  8599.       if (INTERACTIVITY_BACKGROUND_ANIMATION >= 1) {
  8600.  
  8601.  
  8602.         customElements.whenDefined("yt-live-interactivity-component-background").then(() => {
  8603.  
  8604.  
  8605.           mightFirstCheckOnYtInit();
  8606.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-interactivity-component-background hacks");
  8607.           console.log("[Begin]");
  8608.           (() => {
  8609.  
  8610.             const tag = "yt-live-interactivity-component-background"
  8611.             const dummy = document.createElement(tag);
  8612.  
  8613.             const cProto = getProto(dummy);
  8614.             if (!cProto || !cProto.attached) {
  8615.               console.warn(`proto.attached for ${tag} is unavailable.`);
  8616.               return;
  8617.             }
  8618.  
  8619.  
  8620.             cProto.__toStopAfterRun__ = function (hostElement) {
  8621.               let mo = new MutationObserver(() => {
  8622.                 mo.disconnect();
  8623.                 mo.takeRecords();
  8624.                 mo = null;
  8625.                 this.lottieAnimation && this.lottieAnimation.stop(); // primary
  8626.                 foregroundPromiseFn().then(() => { // if the lottieAnimation is started with rAf triggering
  8627.                   this.lottieAnimation && this.lottieAnimation.stop(); // fallback
  8628.                 });
  8629.               });
  8630.               mo.observe(hostElement, { subtree: true, childList: true });
  8631.             }
  8632.  
  8633.             if (INTERACTIVITY_BACKGROUND_ANIMATION >= 1 && typeof cProto.maybeLoadAnimationBackground === 'function' && !cProto.maybeLoadAnimationBackground77 && cProto.maybeLoadAnimationBackground.length === 0) {
  8634.  
  8635.               cProto.maybeLoadAnimationBackground77 = cProto.maybeLoadAnimationBackground;
  8636.               cProto.maybeLoadAnimationBackground = function () {
  8637.                 let toRun = true;
  8638.                 let stopAfterRun = false;
  8639.                 if (!this.__bypassDisableAnimationBackground__) {
  8640.                   let doFix = false;
  8641.                   if (INTERACTIVITY_BACKGROUND_ANIMATION === 1) {
  8642.                     if (!this.lottieAnimation) {
  8643.                       doFix = true;
  8644.                     }
  8645.                   } else if (INTERACTIVITY_BACKGROUND_ANIMATION === 2) {
  8646.                     doFix = true;
  8647.                   }
  8648.                   if (doFix) {
  8649.                     if (this.useAnimationBackground === true) {
  8650.                       console.log('DISABLE_INTERACTIVITY_BACKGROUND_ANIMATION', this.lottieAnimation);
  8651.                     }
  8652.                     toRun = true;
  8653.                     stopAfterRun = true;
  8654.                   }
  8655.                 }
  8656.                 if (toRun) {
  8657.                   if (stopAfterRun && (this.hostElement instanceof HTMLElement)) {
  8658.                     this.__toStopAfterRun__(this.hostElement); // primary
  8659.                   }
  8660.                   const r = this.maybeLoadAnimationBackground77.apply(this, arguments);
  8661.                   if (stopAfterRun && this.lottieAnimation) {
  8662.                     this.lottieAnimation.stop(); // fallback if no mutation
  8663.                   }
  8664.                   return r;
  8665.                 }
  8666.               }
  8667.  
  8668.               console.log(`INTERACTIVITY_BACKGROUND_ANIMATION${INTERACTIVITY_BACKGROUND_ANIMATION} - OK`);
  8669.  
  8670.             } else {
  8671.               console.log(`INTERACTIVITY_BACKGROUND_ANIMATION${INTERACTIVITY_BACKGROUND_ANIMATION} - NG`);
  8672.  
  8673.             }
  8674.  
  8675.           })();
  8676.  
  8677.           console.log("[End]");
  8678.  
  8679.           console.groupEnd();
  8680.  
  8681.  
  8682.         }).catch(console.warn);
  8683.  
  8684.       }
  8685.  
  8686.  
  8687.       if (DELAY_FOCUSEDCHANGED) {
  8688.  
  8689.         customElements.whenDefined("yt-live-chat-text-input-field-renderer").then(() => {
  8690.  
  8691.  
  8692.           mightFirstCheckOnYtInit();
  8693.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-text-input-field-renderer hacks");
  8694.           console.log("[Begin]");
  8695.           (() => {
  8696.  
  8697.             const tag = "yt-live-chat-text-input-field-renderer"
  8698.             const dummy = document.createElement(tag);
  8699.  
  8700.             const cProto = getProto(dummy);
  8701.             if (!cProto || !cProto.attached) {
  8702.               console.warn(`proto.attached for ${tag} is unavailable.`);
  8703.               return;
  8704.             }
  8705.  
  8706.             if (DELAY_FOCUSEDCHANGED && typeof cProto.focusedChanged === 'function' && cProto.focusedChanged.length === 0 && !cProto.focusedChanged372) {
  8707.               cProto.focusedChanged372 = cProto.focusedChanged;
  8708.               cProto.focusedChanged = function () {
  8709.                 Promise.resolve().then(() => {
  8710.                   if (this.isAttached === true) this.focusedChanged372();
  8711.                 });
  8712.               }
  8713.             }
  8714.  
  8715.           })();
  8716.  
  8717.           console.log("[End]");
  8718.  
  8719.           console.groupEnd();
  8720.  
  8721.         });
  8722.  
  8723.       }
  8724.  
  8725.  
  8726.     }
  8727.  
  8728.  
  8729.  
  8730.  
  8731.     promiseForCustomYtElementsReady.then(onRegistryReadyForDOMOperations);
  8732.  
  8733.     const fixJsonParse = () => {
  8734.  
  8735.       let p1 = window.onerror;
  8736.  
  8737.       try {
  8738.         JSON.parse("{}");
  8739.       } catch (e) {
  8740.         console.warn(e);
  8741.       }
  8742.  
  8743.       let p2 = window.onerror;
  8744.  
  8745.       if (p1 !== p2) {
  8746.  
  8747.  
  8748.         console.groupCollapsed(`%c${"YouTube Super Fast Chat"}%c${" | JS Engine Issue Found"}`,
  8749.           "background-color: #010502; color: #fe806a; font-weight: 700; padding: 2px;",
  8750.           "background-color: #010502; color: #fe806a; font-weight: 300; padding: 2px;"
  8751.         );
  8752.  
  8753.         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://gf.qytechs.cn/scripts/473972-youtube-js-engine-tamer to fix the issue.\n");
  8754.  
  8755.         console.groupEnd();
  8756.  
  8757.       }
  8758.  
  8759.     }
  8760.  
  8761.     if (CHECK_JSONPRUNE) {
  8762.       promiseForCustomYtElementsReady.then(fixJsonParse);
  8763.     }
  8764.  
  8765.   });
  8766.  
  8767.  
  8768.  
  8769. })({ IntersectionObserver });

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