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YouTube 超快聊天

YouTube直播聊天的终极性能提升

当前为 2024-03-09 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name                YouTube Super Fast Chat
  3. // @version             0.61.2
  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/475632/1340102/ytConfigHacks.js
  19. //
  20. // @compatible          firefox Violentmonkey
  21. // @compatible          firefox Tampermonkey
  22. // @compatible          firefox FireMonkey
  23. // @compatible          chrome Violentmonkey
  24. // @compatible          chrome Tampermonkey
  25. // @compatible          opera Violentmonkey
  26. // @compatible          opera Tampermonkey
  27. // @compatible          safari Stay
  28. // @compatible          edge Violentmonkey
  29. // @compatible          edge Tampermonkey
  30. // @compatible          brave Violentmonkey
  31. // @compatible          brave Tampermonkey
  32. //
  33. // @description         Ultimate Performance Boost for YouTube Live Chats
  34. // @description:ja      YouTubeのライブチャットの究極のパフォーマンスブースト
  35. // @description:zh-TW   YouTube直播聊天的終極性能提升
  36. // @description:zh-CN   YouTube直播聊天的终极性能提升
  37. //
  38. // ==/UserScript==
  39.  
  40. ((__CONTEXT__) => {
  41.   'use strict';
  42.  
  43.   const ENABLE_REDUCED_MAXITEMS_FOR_FLUSH = true;         // TRUE to enable trimming down to MAX_ITEMS_FOR_FULL_FLUSH (25) messages when there are too many unrendered messages
  44.   const MAX_ITEMS_FOR_TOTAL_DISPLAY = 90;                 // By default, 250 latest messages will be displayed, but displaying MAX_ITEMS_FOR_TOTAL_DISPLAY (90) messages is already sufficient.
  45.   const MAX_ITEMS_FOR_FULL_FLUSH = 25;                    // If there are too many new (stacked) messages not yet rendered, clean all and flush MAX_ITEMS_FOR_FULL_FLUSH (25) latest messages then incrementally added back to MAX_ITEMS_FOR_TOTAL_DISPLAY (90) messages
  46.  
  47.   const ENABLE_NO_SMOOTH_TRANSFORM = true;                // Depends on whether you want the animation effect for new chat messages
  48.   const USE_OPTIMIZED_ON_SCROLL_ITEMS = true;             // TRUE for the majority
  49.   const USE_WILL_CHANGE_CONTROLLER = false;               // FALSE for the majority
  50.   const ENABLE_DELAYED_CHAT_OCCURRENCE_PREFERRED = false;  // In Chrome, the rendering of new chat messages could be too fast for no smooth transform. 80ms delay of displaying new messages should be sufficient for element rendering.
  51.   const ENABLE_OVERFLOW_ANCHOR_PREFERRED = true;          // Enable `overflow-anchor: auto` to lock the scroll list at the bottom for no smooth transform.
  52.  
  53.   const FIX_SHOW_MORE_BUTTON_LOCATION = true;             // When there are voting options (bottom panel), move the "show more" button to the top.
  54.   const FIX_INPUT_PANEL_OVERFLOW_ISSUE = true;            // When the super chat button is flicking with color, the scrollbar might come out.
  55.   const FIX_INPUT_PANEL_BORDER_ISSUE = true;              // No border should be allowed if there is an empty input panel.
  56.   const SET_CONTAIN_FOR_CHATROOM = true;                  // Rendering hacks (`contain`) for chatroom elements. [ General ]
  57.  
  58.   const FORCE_CONTENT_VISIBILITY_UNSET = true;            // Content-visibility should be always VISIBLE for high performance and great rendering.
  59.   const FORCE_WILL_CHANGE_UNSET = true;                   // Will-change should be always UNSET (auto) for high performance and low energy impact.
  60.  
  61.   // Replace requestAnimationFrame timers with custom implementation
  62.   const ENABLE_RAF_HACK_TICKERS = true;           // When there is a ticker
  63.   const ENABLE_RAF_HACK_DOCKED_MESSAGE = true;    // To be confirmed
  64.   const ENABLE_RAF_HACK_INPUT_RENDERER = true;    // To be confirmed
  65.   const ENABLE_RAF_HACK_EMOJI_PICKER = true;      // When changing the page of the emoji picker
  66.  
  67.   // Force rendering all the character subsets of the designated font(s) before messages come (Pre-Rendering of Text)
  68.   const ENABLE_FONT_PRE_RENDERING_PREFERRED = 1 | 2 | 4 | 8 | 16;
  69.  
  70.   // Backdrop `filter: blur(4px)` inside the iframe can extend to the whole page, causing a negative visual impact on the video you are watching.
  71.   const NO_BACKDROP_FILTER_WHEN_MENU_SHOWN = true;
  72.  
  73.   // Data Manipulation for Participants (Participant List)
  74.   // << if DO_PARTICIPANT_LIST_HACKS >>
  75.   const DO_PARTICIPANT_LIST_HACKS = true;                     // TRUE for the majority
  76.   const SHOW_PARTICIPANT_CHANGES_IN_CONSOLE = false;          // Just too annoying to show them all in popular chat
  77.   const CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT = true;  // Only consider changes in renderable content (not concerned with the last chat message of the participants)
  78.   const PARTICIPANT_UPDATE_ONLY_ONLY_IF_MODIFICATION_DETECTED = true;
  79.   // << end >>
  80.  
  81.   // show more button
  82.   const ENABLE_SHOW_MORE_BLINKER = true;                      // BLINK WHEN NEW MESSAGES COME
  83.  
  84.   // faster stampDomArray_ for participants list creation
  85.   const ENABLE_FLAGS_MAINTAIN_STABLE_LIST_VAL = 1;            // 0 - OFF; 1 - ON; 2 - ON(PARTICIPANTS_LIST ONLY)
  86.   const USE_MAINTAIN_STABLE_LIST_ONLY_WHEN_KS_FLAG_IS_SET = false;
  87.  
  88.   // reuse yt components
  89.   const ENABLE_FLAGS_REUSE_COMPONENTS = true;
  90.  
  91.   // 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.   const NO_FILTER_DROPDOWN_BORDER = true; // added in 2024.03.02
  185.  
  186.   // ========= EXPLANTION FOR 0.2% @ step timing [min. 0.2%] ===========
  187.   /*
  188.  
  189.     ### Time Approach
  190.  
  191.     // all below values can make the time interval > 250ms
  192.     // 250ms (practical value) refers to the minimum frequency for timeupdate in most browsers (typically, shorter timeupdate interval in modern browsers)
  193.     if (totalDuration > 400000) stepInterval = 0.2;  // 400000ms with 0.2% increment => 800ms
  194.     else if (totalDuration > 200000) stepInterval = 0.5; // 200000ms with 0.5% increment => 1000ms
  195.     else if (totalDuration > 100000) stepInterval = 1; // 100000ms with 1% increment => 1000ms
  196.     else if (totalDuration > 50000) stepInterval = 2; // 50000ms with 2% increment => 1000ms
  197.     else if (totalDuration > 25000) stepInterval = 5; // 25000ms with 5% increment => 1250ms
  198.  
  199.     ### Pixel Check
  200.     // Target Max Pixel Increment < 5px for Short Period Ticker (Rapid Background Change)
  201.     // Assume total width <= 99px for short period ticker, like small donation & member welcome
  202.     99px * 5% = 4.95px < 5px [Condition Fulfilled]
  203.  
  204.     ### Example - totalDuration = 280000
  205.     totalDuration 280000
  206.     stepInterval 0.5
  207.     numOfSteps = Math.round(100 / stepInterval) = 200
  208.     time interval = 280000 / 200 = 1400ms <acceptable>
  209.  
  210.     ### Example - totalDuration = 18000
  211.     totalDuration 18000
  212.     stepInterval 5
  213.     numOfSteps = Math.round(100 / stepInterval) = 20
  214.     time interval = 18000 / 20 = 900ms <acceptable>
  215.  
  216.     ### Example - totalDuration = 5000
  217.     totalDuration 5000
  218.     stepInterval 5
  219.     numOfSteps = Math.round(100 / stepInterval) = 20
  220.     time interval = 5000 / 20 = 250ms <threshold value>
  221.  
  222.     ### Example - totalDuration = 3600
  223.     totalDuration 3600
  224.     stepInterval 5
  225.     numOfSteps = Math.round(100 / stepInterval) = 20
  226.     time interval = 3600 / 20 = 180ms <reasonable for 3600ms ticker>
  227.  
  228.   */
  229.  
  230.   // =======================================================================================================
  231.  
  232.   // AUTOMAICALLY DETERMINED
  233.   const ENABLE_FLAGS_MAINTAIN_STABLE_LIST = ENABLE_FLAGS_MAINTAIN_STABLE_LIST_VAL === 1;
  234.   const ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST = ENABLE_FLAGS_MAINTAIN_STABLE_LIST_VAL >= 1;
  235.   const CHAT_MENU_SCROLL_UNLOCKING = CHAT_MENU_REFIT_ALONG_SCROLLING >= 1;
  236.   let runTickerClassName = 'run-ticker';
  237.  
  238.   const dummyImgURL = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
  239.   /*
  240.     WebP: data:image/webp;base64,UklGRjAB
  241.     PNG: data:image/png;base64,iVBORw0KGg==
  242.     JPEG: data:image/jpeg;base64,/9j/4AA=
  243.     GIF: data:image/gif;base64,R0lGODlhAQABAIA=
  244.     BMP: data:image/bmp;base64,Qk1oAAAA
  245.     SVG: data:image/svg+xml;base64,PHN2Zy8+Cg==
  246.  
  247.     WebP: data:image/webp;base64,AAAAAAA=
  248.     PNG:  data:image/png;base64,AAAAAAA=
  249.     JPEG: data:image/jpeg;base64,AAAAAAA=
  250.     GIF:  data:image/gif;base64,AAAAAAA=
  251.     BMP:  data:image/bmp;base64,AAAAAAA=
  252.  
  253.     data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
  254.  
  255.  
  256.   */
  257.  
  258.   // image sizing code
  259.   // (d = (d = KC(a.customThumbnail.thumbnails, 16)) ? lc(oc(d)) : null)
  260.  
  261.  
  262.   //   function KC(a, b, c, d) {
  263.   //     d = void 0 === d ? "width" : d;
  264.   //     if (!a || !a.length)
  265.   //         return null;
  266.   //     if (z("kevlar_tuner_should_always_use_device_pixel_ratio")) {
  267.   //         var e = window.devicePixelRatio;
  268.   //         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"));
  269.   //         HC = e
  270.   //     } else
  271.   //         HC || (HC = window.devicePixelRatio);
  272.   //     e = HC;
  273.   //     z("kevlar_tuner_should_always_use_device_pixel_ratio") ? b *= e : 1 < e && (b *= e);
  274.   //     if (z("kevlar_tuner_min_thumbnail_quality"))
  275.   //         return a[0].url || null;
  276.   //     e = a.length;
  277.   //     if (z("kevlar_tuner_max_thumbnail_quality"))
  278.   //         return a[e - 1].url || null;
  279.   //     if (c)
  280.   //         for (var h = 0; h < e; h++)
  281.   //             if (0 <= a[h].url.indexOf(c))
  282.   //                 return a[h].url || null;
  283.   //     for (c = 0; c < e; c++)
  284.   //         if (a[c][d] >= b)
  285.   //             return a[c].url || null;
  286.   //     for (b = e - 1; 0 < b; b--)
  287.   //         if (a[b][d])
  288.   //             return a[b].url || null;
  289.   //     return a[0].url || null
  290.   // }
  291.  
  292.   const { IntersectionObserver } = __CONTEXT__;
  293.  
  294.   /** @type {globalThis.PromiseConstructor} */
  295.   const Promise = (async () => { })().constructor; // YouTube hacks Promise in WaterFox Classic and "Promise.resolve(0)" nevers resolve.
  296.  
  297.   // let jsonParseFix = null;
  298.  
  299.   if (!IntersectionObserver) return console.warn("Your browser does not support IntersectionObserver.\nPlease upgrade to the latest version.");
  300.   if (typeof WebAssembly !== 'object') return console.warn("Your browser is too old.\nPlease upgrade to the latest version."); // for passive and once
  301.  
  302.   // necessity of cssText3_smooth_transform_position to be checked.
  303.   const cssText3_smooth_transform_position = ENABLE_NO_SMOOTH_TRANSFORM ? `
  304.  
  305.     #item-offset.style-scope.yt-live-chat-item-list-renderer > #items.style-scope.yt-live-chat-item-list-renderer {
  306.         position: static !important;
  307.     }
  308.  
  309.   `: '';
  310.  
  311.   // fallback if dummy style fn fails
  312.   const cssText4_smooth_transform_forced_props = ENABLE_NO_SMOOTH_TRANSFORM ? `
  313.  
  314.     /* optional */
  315.     #item-offset.style-scope.yt-live-chat-item-list-renderer {
  316.         height: auto !important;
  317.         min-height: unset !important;
  318.     }
  319.  
  320.     #items.style-scope.yt-live-chat-item-list-renderer {
  321.         transform: translateY(0px) !important;
  322.     }
  323.  
  324.     /* optional */
  325.  
  326.   `: '';
  327.  
  328.   const cssText5 = SET_CONTAIN_FOR_CHATROOM ? `
  329.  
  330.     /* ------------------------------------------------------------------------------------------------------------- */
  331.  
  332.     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 {
  333.         contain: layout style;
  334.     }
  335.  
  336.     #items.style-scope.yt-live-chat-item-list-renderer {
  337.         contain: layout paint style;
  338.     }
  339.  
  340.     #item-offset.style-scope.yt-live-chat-item-list-renderer {
  341.         contain: style;
  342.     }
  343.  
  344.     #item-scroller.style-scope.yt-live-chat-item-list-renderer {
  345.         contain: size style;
  346.     }
  347.  
  348.     #contents.style-scope.yt-live-chat-item-list-renderer, #chat.style-scope.yt-live-chat-renderer, img.style-scope.yt-img-shadow[width][height] {
  349.         contain: size layout paint style;
  350.     }
  351.  
  352.     .style-scope.yt-live-chat-ticker-renderer[role="button"][aria-label], .style-scope.yt-live-chat-ticker-renderer[role="button"][aria-label] > #container {
  353.         contain: layout paint style;
  354.     }
  355.  
  356.     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 {
  357.         contain: layout style;
  358.     }
  359.  
  360.     tp-yt-paper-tooltip[style*="inset"][role="tooltip"] {
  361.         contain: layout paint style;
  362.     }
  363.  
  364.     /* ------------------------------------------------------------------------------------------------------------- */
  365.  
  366.   ` : '';
  367.  
  368.   const cssText6b_show_more_button = FIX_SHOW_MORE_BUTTON_LOCATION ? `
  369.  
  370.     yt-live-chat-renderer[has-action-panel-renderer] #show-more.yt-live-chat-item-list-renderer{
  371.         top: 4px;
  372.         transition-property: top;
  373.         bottom: unset;
  374.     }
  375.  
  376.     yt-live-chat-renderer[has-action-panel-renderer] #show-more.yt-live-chat-item-list-renderer[disabled]{
  377.         top: -42px;
  378.     }
  379.  
  380.   `: '';
  381.  
  382.   const cssText6c_input_panel_overflow = FIX_INPUT_PANEL_OVERFLOW_ISSUE ? `
  383.  
  384.     #input-panel #picker-buttons yt-live-chat-icon-toggle-button-renderer#product-picker {
  385.         contain: layout style;
  386.     }
  387.  
  388.     #chat.yt-live-chat-renderer ~ #panel-pages.yt-live-chat-renderer {
  389.         overflow: visible;
  390.     }
  391.  
  392.   `: '';
  393.  
  394.   const cssText6d_input_panel_border = FIX_INPUT_PANEL_BORDER_ISSUE ? `
  395.  
  396.     html #panel-pages.yt-live-chat-renderer > #input-panel.yt-live-chat-renderer:not(:empty) {
  397.         --yt-live-chat-action-panel-top-border: none;
  398.     }
  399.  
  400.     html #panel-pages.yt-live-chat-renderer > #input-panel.yt-live-chat-renderer.iron-selected > *:first-child {
  401.         border-top: 1px solid var(--yt-live-chat-panel-pages-border-color);
  402.     }
  403.  
  404.     html #panel-pages.yt-live-chat-renderer {
  405.         border-top: 0;
  406.         border-bottom: 0;
  407.     }
  408.  
  409.   `: '';
  410.  
  411.   const cssText7b_content_visibility_unset = FORCE_CONTENT_VISIBILITY_UNSET ? `
  412.  
  413.     img,
  414.     yt-img-shadow[height][width],
  415.     yt-img-shadow {
  416.         content-visibility: visible !important;
  417.     }
  418.  
  419.   `  : '';
  420.  
  421.   const cssText7c_will_change_unset = FORCE_WILL_CHANGE_UNSET ? `
  422.  
  423.     /* remove YouTube constant will-change */
  424.     /* constant value will slow down the performance; default auto */
  425.  
  426.     /* www-player.css */
  427.     html .ytp-contextmenu,
  428.     html .ytp-settings-menu {
  429.         will-change: unset;
  430.     }
  431.  
  432.     /* frequently matched elements */
  433.     html .fill.yt-interaction,
  434.     html .stroke.yt-interaction,
  435.     html .yt-spec-touch-feedback-shape__fill,
  436.     html .yt-spec-touch-feedback-shape__stroke {
  437.         will-change: unset;
  438.     }
  439.  
  440.     /* live_chat_polymer.js */
  441.     /*
  442.     html .toggle-button.tp-yt-paper-toggle-button,
  443.     html #primaryProgress.tp-yt-paper-progress,
  444.     html #secondaryProgress.tp-yt-paper-progress,
  445.     html #onRadio.tp-yt-paper-radio-button,
  446.     html .fill.yt-interaction,
  447.     html .stroke.yt-interaction,
  448.     html .yt-spec-touch-feedback-shape__fill,
  449.     html .yt-spec-touch-feedback-shape__stroke {
  450.         will-change: unset;
  451.     }
  452.     */
  453.  
  454.     /* desktop_polymer_enable_wil_icons.js */
  455.     /* html .fill.yt-interaction,
  456.     html .stroke.yt-interaction, */
  457.     html tp-yt-app-header::before,
  458.     html tp-yt-iron-list,
  459.     html #items.tp-yt-iron-list > *,
  460.     html #onRadio.tp-yt-paper-radio-button,
  461.     html .toggle-button.tp-yt-paper-toggle-button,
  462.     html ytd-thumbnail-overlay-toggle-button-renderer[use-expandable-tooltip] #label.ytd-thumbnail-overlay-toggle-button-renderer,
  463.     html #items.ytd-post-multi-image-renderer,
  464.     html #items.ytd-horizontal-card-list-renderer,
  465.     html #items.yt-horizontal-list-renderer,
  466.     html #left-arrow.yt-horizontal-list-renderer,
  467.     html #right-arrow.yt-horizontal-list-renderer,
  468.     html #items.ytd-video-description-infocards-section-renderer,
  469.     html #items.ytd-video-description-music-section-renderer,
  470.     html #chips.ytd-feed-filter-chip-bar-renderer,
  471.     html #chips.yt-chip-cloud-renderer,
  472.     html #items.ytd-merch-shelf-renderer,
  473.     html #items.ytd-product-details-image-carousel-renderer,
  474.     html ytd-video-preview,
  475.     html #player-container.ytd-video-preview,
  476.     html #primaryProgress.tp-yt-paper-progress,
  477.     html #secondaryProgress.tp-yt-paper-progress,
  478.     html ytd-miniplayer[enabled] /* ,
  479.     html .yt-spec-touch-feedback-shape__fill,
  480.     html .yt-spec-touch-feedback-shape__stroke */ {
  481.         will-change: unset;
  482.     }
  483.  
  484.     /* other */
  485.     .ytp-videowall-still-info-content[class],
  486.     .ytp-suggestion-image[class] {
  487.         will-change: unset !important;
  488.     }
  489.  
  490.   ` : '';
  491.  
  492.   const ENABLE_FONT_PRE_RENDERING = typeof HTMLElement.prototype.append === 'function' ? (ENABLE_FONT_PRE_RENDERING_PREFERRED || 0) : 0;
  493.   const cssText8_fonts_pre_render = ENABLE_FONT_PRE_RENDERING ? `
  494.  
  495.     elzm-fonts {
  496.         visibility: collapse;
  497.         position: fixed;
  498.         top: -10px;
  499.         left: -10px;
  500.         font-size: 10pt;
  501.         line-height: 100%;
  502.         width: 100px;
  503.         height: 100px;
  504.         transform: scale(0.1);
  505.         transform: scale(0.01);
  506.         transform: scale(0.001);
  507.         transform-origin: 0 0;
  508.         contain: strict;
  509.         display: block;
  510.  
  511.         pointer-events: none !important;
  512.         user-select: none !important;
  513.     }
  514.  
  515.     elzm-fonts[id]#elzm-fonts-yk75g {
  516.         user-select: none !important;
  517.         pointer-events: none !important;
  518.     }
  519.  
  520.     elzm-font {
  521.         visibility: collapse;
  522.         position: absolute;
  523.         line-height: 100%;
  524.         width: 100px;
  525.         height: 100px;
  526.         contain: strict;
  527.         display: block;
  528.  
  529.         user-select: none !important;
  530.         pointer-events: none !important;
  531.     }
  532.  
  533.     elzm-font::before {
  534.         visibility: collapse;
  535.         position: absolute;
  536.         line-height: 100%;
  537.         width: 100px;
  538.         height: 100px;
  539.         contain: strict;
  540.         display: block;
  541.  
  542.         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';
  543.  
  544.         user-select: none !important;
  545.         pointer-events: none !important;
  546.     }
  547.  
  548.   `: '';
  549.  
  550.   const cssText9_no_backdrop_filter_when_menu_shown = NO_BACKDROP_FILTER_WHEN_MENU_SHOWN ? `
  551.     tp-yt-iron-dropdown.yt-live-chat-app ytd-menu-popup-renderer  {
  552.         -webkit-backdrop-filter: none;
  553.         backdrop-filter: none;
  554.     }
  555.   `: '';
  556.  
  557.   const cssText10_show_more_blinker = ENABLE_SHOW_MORE_BLINKER ? `
  558.  
  559.     @keyframes blinker-miuzp {
  560.         0%, 60%, 100% {
  561.             opacity: 1;
  562.         }
  563.         30% {
  564.             opacity: 0.6;
  565.         }
  566.     }
  567.  
  568.     yt-icon-button#show-more.has-new-messages-miuzp {
  569.         animation: blinker-miuzp 1.74s linear infinite;
  570.     }
  571.  
  572.   `: '';
  573.  
  574.   const cssText11_entire_message_clickable = FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK ? `
  575.  
  576.     yt-live-chat-paid-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  577.       pointer-events: none !important;
  578.     }
  579.  
  580.     yt-live-chat-membership-item-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  581.       pointer-events: none !important;
  582.     }
  583.  
  584.     yt-live-chat-paid-sticker-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  585.       pointer-events: none !important;
  586.     }
  587.  
  588.     yt-live-chat-text-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  589.       pointer-events: none !important; /* TO_BE_REVIEWED */
  590.     }
  591.  
  592.     yt-live-chat-auto-mod-message-renderer.yt-live-chat-item-list-renderer[whole-message-clickable] #menu.style-scope[class] {
  593.       pointer-events: none !important;
  594.     }
  595.  
  596.   `: '';
  597.  
  598.   const cssText12_nowrap_tooltip = MAX_TOOLTIP_NO_WRAP_WIDTH && typeof MAX_TOOLTIP_NO_WRAP_WIDTH === 'string' ? `
  599.  
  600.  
  601.     tp-yt-paper-tooltip[role="tooltip"] {
  602.       box-sizing: content-box !important;
  603.       margin: 0px !important;
  604.       padding: 0px !important;
  605.       contain: none !important;
  606.     }
  607.  
  608.     tp-yt-paper-tooltip[role="tooltip"] #tooltip[style-target="tooltip"] {
  609.       box-sizing: content-box !important;
  610.       display: inline-block;
  611.       contain: none !important;
  612.     }
  613.  
  614.  
  615.     tp-yt-paper-tooltip[role="tooltip"] #tooltip[style-target="tooltip"]{
  616.       max-width: ${MAX_TOOLTIP_NO_WRAP_WIDTH};
  617.       width: max-content;
  618.       text-overflow: ellipsis;
  619.       overflow: hidden;
  620.       white-space: nowrap;
  621.     }
  622.  
  623.  
  624.   `: '';
  625.  
  626.  
  627.   const cssText13_no_text_select_when_menu_visible = `
  628.     [menu-visible] {
  629.       --sfc47-text-select: none;
  630.     }
  631.     [menu-visible] #header[id][class],
  632.     [menu-visible] #content[id][class],
  633.     [menu-visible] #header[id][class] *,
  634.     [menu-visible] #content[id][class] * {
  635.       user-select: var(--sfc47-text-select) !important;
  636.     }
  637.     [menu-visible] #menu {
  638.       --sfc47-text-select: inherit;
  639.     }
  640.   `;
  641.  
  642.   const cssText14_NO_FILTER_DROPDOWN_BORDER = NO_FILTER_DROPDOWN_BORDER ? `
  643.   yt-live-chat-header-renderer.yt-live-chat-renderer #label.yt-dropdown-menu::before {
  644.     border:0;
  645.   }
  646.   ` : '';
  647.  
  648.  
  649.   const addCss = () => `
  650.  
  651.     @property --ticker-rtime {
  652.       syntax: "<percentage>";
  653.       inherits: false;
  654.       initial-value: 0%;
  655.     }
  656.  
  657.     /*
  658.     .run-ticker {
  659.       background:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2));
  660.     }
  661.  
  662.     .run-ticker-test {
  663.       background: #00000001;
  664.     }
  665.  
  666.     .run-ticker-forced,
  667.     yt-live-chat-ticker-renderer #items > * > #container.run-ticker-forced,
  668.     yt-live-chat-ticker-renderer[class] #items[class] > *[class] > #container.run-ticker-forced[class]
  669.     {
  670.       background:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2)) !important;
  671.     }
  672.     */
  673.  
  674.     .run-ticker {
  675.       --ticker-bg:linear-gradient(90deg, var(--ticker-c1),var(--ticker-c1) var(--ticker-rtime),var(--ticker-c2) var(--ticker-rtime),var(--ticker-c2));
  676.     }
  677.  
  678.     .run-ticker,
  679.     yt-live-chat-ticker-renderer #items > * > #container.run-ticker,
  680.     yt-live-chat-ticker-renderer[class] #items[class] > *[class] > #container.run-ticker[class]
  681.     {
  682.       background: var(--ticker-bg) !important;
  683.     }
  684.  
  685.     yt-live-chat-ticker-dummy777-item-renderer {
  686.       background: #00000001;
  687.     }
  688.  
  689.     yt-live-chat-ticker-dummy777-item-renderer[dummy777] {
  690.       position: fixed !important;
  691.       top: -1000px !important;
  692.       left: -1000px !important;
  693.       font-size: 1px !important;
  694.       color: transparent !important;
  695.       pointer-events: none !important;
  696.       z-index: -1 !important;
  697.       contain: strict !important;
  698.       box-sizing: border-box !important;
  699.       pointer-events: none !important;
  700.       user-select: none !important;
  701.       max-width: 1px !important;
  702.       max-height: 1px !important;
  703.       overflow: hidden !important;
  704.       visibility: collapse !important;
  705.       display: none !important;
  706.     }
  707.  
  708.     yt-live-chat-ticker-dummy777-item-renderer #container {
  709.       background: inherit;
  710.     }
  711.  
  712.  
  713.     ${cssText8_fonts_pre_render}
  714.  
  715.     ${cssText9_no_backdrop_filter_when_menu_shown}
  716.  
  717.     @supports (contain: layout paint style) {
  718.  
  719.       ${cssText5}
  720.  
  721.     }
  722.  
  723.     @supports (color: var(--general)) {
  724.  
  725.       html {
  726.           --yt-live-chat-item-list-renderer-padding: 0px 0px;
  727.       }
  728.  
  729.       ${cssText3_smooth_transform_position}
  730.  
  731.       ${cssText7c_will_change_unset}
  732.  
  733.       ${cssText7b_content_visibility_unset}
  734.  
  735.       yt-live-chat-item-list-renderer:not([allow-scroll]) #item-scroller.yt-live-chat-item-list-renderer {
  736.           overflow-y: scroll;
  737.           padding-right: 0;
  738.       }
  739.  
  740.       ${cssText4_smooth_transform_forced_props}
  741.  
  742.       yt-icon[icon="down_arrow"] > *, yt-icon-button#show-more > * {
  743.           pointer-events: none !important;
  744.       }
  745.  
  746.       #continuations, #continuations * {
  747.           contain: strict;
  748.           position: fixed;
  749.           top: 2px;
  750.           height: 1px;
  751.           width: 2px;
  752.           height: 1px;
  753.           visibility: collapse;
  754.       }
  755.  
  756.       ${cssText6b_show_more_button}
  757.  
  758.       ${cssText6d_input_panel_border}
  759.  
  760.       ${cssText6c_input_panel_overflow}
  761.  
  762.     }
  763.  
  764.  
  765.     @supports (overflow-anchor: auto) {
  766.  
  767.       .no-anchor * {
  768.           overflow-anchor: none;
  769.       }
  770.       .no-anchor > item-anchor {
  771.           overflow-anchor: auto;
  772.       }
  773.  
  774.       item-anchor {
  775.  
  776.           height:1px;
  777.           width: 100%;
  778.           transform: scaleY(0.00001);
  779.           transform-origin:0 0;
  780.           contain: strict;
  781.           opacity:0;
  782.           display:flex;
  783.           position:relative;
  784.           flex-shrink:0;
  785.           flex-grow:0;
  786.           margin-bottom:0;
  787.           overflow:hidden;
  788.           box-sizing:border-box;
  789.           visibility: visible;
  790.           content-visibility: visible;
  791.           contain-intrinsic-size: auto 1px;
  792.           pointer-events:none !important;
  793.  
  794.       }
  795.  
  796.       #item-scroller.style-scope.yt-live-chat-item-list-renderer[class] {
  797.           overflow-anchor: initial !important; /* whenever ENABLE_OVERFLOW_ANCHOR or not */
  798.       }
  799.  
  800.       html item-anchor {
  801.  
  802.           height: 1px;
  803.           width: 1px;
  804.           top: auto;
  805.           left: auto;
  806.           right: auto;
  807.           bottom: auto;
  808.           transform: translateY(-1px);
  809.           position: absolute;
  810.           z-index: -1;
  811.  
  812.       }
  813.  
  814.     }
  815.  
  816.     @supports (color: var(--pre-rendering)) {
  817.  
  818.       @keyframes dontRenderAnimation {
  819.           0% {
  820.               background-position-x: 3px;
  821.           }
  822.           100% {
  823.               background-position-x: 4px;
  824.           }
  825.       }
  826.  
  827.       .dont-render[class] {
  828.           /* visibility: collapse !important; */
  829.           /* visibility: collapse will make innerText become "" which conflicts with BetterStreamChat; see https://gf.qytechs.cn/scripts/469878/discussions/197267 */
  830.  
  831.           transform: scale(0.01) !important;
  832.           transform: scale(0.00001) !important;
  833.           transform: scale(0.0000001) !important;
  834.           transform-origin: 0 0 !important;
  835.           z-index: -1 !important;
  836.           contain: strict !important;
  837.           box-sizing: border-box !important;
  838.  
  839.           height: 1px !important;
  840.           height: 0.1px !important;
  841.           height: 0.01px !important;
  842.           height: 0.0001px !important;
  843.           height: 0.000001px !important;
  844.  
  845.           animation: dontRenderAnimation 1ms linear 80ms 1 normal forwards !important;
  846.  
  847.           pointer-events: none !important;
  848.           user-select: none !important;
  849.  
  850.       }
  851.  
  852.       #sk35z {
  853.         display: block !important;
  854.  
  855.         visibility: collapse !important;
  856.  
  857.         transform: scale(0.01) !important;
  858.         transform: scale(0.00001) !important;
  859.         transform: scale(0.0000001) !important;
  860.         transform-origin: 0 0 !important;
  861.         z-index: -1 !important;
  862.         contain: strict !important;
  863.         box-sizing: border-box !important;
  864.  
  865.         height: 1px !important;
  866.         height: 0.1px !important;
  867.         height: 0.01px !important;
  868.         height: 0.0001px !important;
  869.         height: 0.000001px !important;
  870.  
  871.         position: absolute !important;
  872.         top: -1000px !important;
  873.         left: -1000px !important;
  874.  
  875.       }
  876.  
  877.     }
  878.  
  879.     [rNgzQ] {
  880.       opacity: 0 !important;
  881.       pointer-events: none !important;
  882.     }
  883.  
  884.  
  885.     ${cssText10_show_more_blinker}
  886.  
  887.     ${cssText11_entire_message_clickable}
  888.  
  889.     ${cssText12_nowrap_tooltip}
  890.  
  891.     ${cssText13_no_text_select_when_menu_visible}
  892.  
  893.     ${cssText14_NO_FILTER_DROPDOWN_BORDER}
  894.  
  895.   `;
  896.  
  897.  
  898.   const konsole = {
  899.     nil: Symbol(),
  900.     logs: [],
  901.     style: '',
  902.     log(...args) {
  903.       konsole.logs.push({
  904.         type: 'log',
  905.         msg: [konsole.tag || konsole.nil, ...args, konsole.style || konsole.nil].filter(e => e !== konsole.nil)
  906.       });
  907.     },
  908.     setTag(tag) {
  909.       konsole.tag = tag;
  910.     },
  911.     setStyle(style){
  912.       konsole.style = style;
  913.     },
  914.     groupCollapsed(...args){
  915.  
  916.       konsole.logs.push({
  917.         type:'groupCollapsed',
  918.         msg: [...args].filter(e => e !== konsole.nil)
  919.       });
  920.     },
  921.     groupEnd(){
  922.  
  923.       konsole.logs.push({
  924.         type:'groupEnd'
  925.       })
  926.     },
  927.     print() {
  928.       const copy = konsole.logs.slice(0);
  929.       konsole.logs.length = 0;
  930.       for (const {type, msg} of copy) {
  931.         if(type ==='log'){
  932.           console.log(...msg)
  933.         }else if (type === 'groupCollapsed'){
  934.  
  935.           console.groupCollapsed(...msg)
  936.         }else if(type ==='groupEnd'){
  937.           console.groupEnd();
  938.         }
  939.         
  940.       }
  941.  
  942.     }
  943.   };
  944.  
  945.   /*
  946.   konsole.groupCollapsedX = (text1, text2) => {
  947.  
  948.     if(!text2){
  949.  
  950.       konsole.groupCollapsed(`%c${text1}`,
  951.       "background-color: #010502; color: #6acafe; font-weight: 700; padding: 2px;"
  952.     );
  953.     }else{
  954.  
  955.       konsole.groupCollapsed(`%c${text1}%c${text2}`,
  956.       "background-color: #010502; color: #6acafe; font-weight: 700; padding: 2px;",
  957.       "background-color: #010502; color: #6ad9fe; font-weight: 300; padding: 2px;"
  958.     );
  959.     }
  960.   }
  961.  
  962.   konsole.groupCollapsedX('YouTube Super Fast Chat');
  963.  
  964.   setTimeout(()=>{
  965.  
  966.     konsole.setTag('[[Fonts Pre-Rendering]]');
  967.     konsole.log(123);
  968.     konsole.log('wsd',332, 'ssa');
  969.     konsole.setTag('');
  970.   }, 100);
  971.  
  972.   setTimeout(()=>{
  973.  
  974.     konsole.setTag('[[Fonts Pre-Rendering 2]]');
  975.     konsole.log(123);
  976.     konsole.log('wsd',332, 'ssa');
  977.     konsole.setTag('');
  978.   }, 300);
  979.  
  980.   setTimeout(()=>{
  981.  
  982.   konsole.groupEnd();
  983.   konsole.print();
  984.   }, 1000);
  985.  
  986.   */
  987.  
  988.   const win = typeof unsafeWindow !== 'undefined' ? unsafeWindow : (this instanceof Window ? this : window);
  989.  
  990.   // Create a unique key for the script and check if it is already running
  991.   const hkey_script = 'mchbwnoasqph';
  992.   if (win[hkey_script]) throw new Error('Duplicated Userscript Calling'); // avoid duplicated scripting
  993.   win[hkey_script] = true;
  994.  
  995.   if (!!ATTEMPT_ANIMATED_TICKER_BACKGROUND) {
  996.  
  997.     let te4 = setTimeout(() => { }); // dummy; skip timerId only;
  998.     if (te4 < 3) {
  999.       setTimeout(() => { });
  1000.       setTimeout(() => { });
  1001.     }
  1002.  
  1003.   }
  1004.  
  1005.   const firstKey = (obj) => {
  1006.     for (const key in obj) {
  1007.       if (obj.hasOwnProperty(key)) return key;
  1008.     }
  1009.     return null;
  1010.   }
  1011.  
  1012.   const firstObjectKey = (obj) => {
  1013.     for (const key in obj) {
  1014.       if (obj.hasOwnProperty(key) && typeof obj[key] === 'object') return key;
  1015.     }
  1016.     return null;
  1017.   }
  1018.  
  1019.   // function removeElementFromArray(arr, index) {
  1020.   //   if (index >= 0 && index < arr.length) {
  1021.   //     arr.splice(index, 1);
  1022.   //   }
  1023.   // }
  1024.  
  1025.   // function getRandomInt(a, b) {
  1026.   //   // Ensure that 'a' and 'b' are integers
  1027.   //   a = Math.ceil(a);
  1028.   //   b = Math.floor(b);
  1029.  
  1030.   //   // Generate a random integer in the range [a, b]
  1031.   //   return Math.floor(Math.random() * (b - a + 1)) + a;
  1032.   // }
  1033.  
  1034.   function deepCopy(obj, skipKeys) {
  1035.     skipKeys = skipKeys || [];
  1036.     if (!obj || typeof obj !== 'object') return obj;
  1037.     if (Array.isArray(obj)) {
  1038.       return obj.map(item => deepCopy(item, skipKeys));
  1039.     }
  1040.     const copy = {};
  1041.     for (let key in obj) {
  1042.       if (!skipKeys.includes(key)) {
  1043.         copy[key] = deepCopy(obj[key], skipKeys);
  1044.       }
  1045.     }
  1046.     return copy;
  1047.   }
  1048.  
  1049.   class Mutex {
  1050.  
  1051.     constructor() {
  1052.       this.p = Promise.resolve()
  1053.     }
  1054.  
  1055.     /**
  1056.      *  @param {(lockResolve: () => void)} f
  1057.      */
  1058.     lockWith(f) {
  1059.       this.p = this.p.then(() => new Promise(f).catch(console.warn))
  1060.     }
  1061.  
  1062.   }
  1063.  
  1064.   const PromiseExternal = ((resolve_, reject_) => {
  1065.     const h = (resolve, reject) => { resolve_ = resolve; reject_ = reject };
  1066.     return class PromiseExternal extends Promise {
  1067.       constructor(cb = h) {
  1068.         super(cb);
  1069.         if (cb === h) {
  1070.           /** @type {(value: any) => void} */
  1071.           this.resolve = resolve_;
  1072.           /** @type {(reason?: any) => void} */
  1073.           this.reject = reject_;
  1074.         }
  1075.       }
  1076.     };
  1077.   })();
  1078.  
  1079.   /** @type {typeof PromiseExternal.prototype | null} */
  1080.   let relayPromise = null;
  1081.  
  1082.  
  1083.   /** @type {typeof PromiseExternal.prototype | null} */
  1084.   let onPlayStateChangePromise = null;
  1085.  
  1086.  
  1087.  
  1088.   let playEventsStack = Promise.resolve();
  1089.  
  1090.  
  1091.   let playerProgressChangedArg1 = null;
  1092.   let playerProgressChangedArg2 = null;
  1093.   let playerProgressChangedArg3 = null;
  1094.  
  1095.  
  1096.   function dr(s) {
  1097.     // reserved for future use
  1098.     return s;
  1099.     // return window.deWeakJS ? window.deWeakJS(s) : s;
  1100.   }
  1101.  
  1102.   const insp = o => o ? (o.polymerController || o.inst || o || 0) : (o || 0);
  1103.   const indr = o => insp(o).$ || o.$ || 0;
  1104.  
  1105.   const getProto = (element) => {
  1106.     if (element) {
  1107.       const cnt = insp(element);
  1108.       return cnt.constructor.prototype || null;
  1109.     }
  1110.     return null;
  1111.   }
  1112.  
  1113.   const assertor = (f) => f() || console.assert(false, f + "");
  1114.  
  1115.   const fnIntegrity = (f, d) => {
  1116.     if (!f || typeof f !== 'function') {
  1117.       console.warn('f is not a function', f);
  1118.       return;
  1119.     }
  1120.     let p = f + "", s = 0, j = -1, w = 0;
  1121.     for (let i = 0, l = p.length; i < l; i++) {
  1122.       const t = p[i];
  1123.       if (((t >= 'a' && t <= 'z') || (t >= 'A' && t <= 'Z'))) {
  1124.         if (j < i - 1) w++;
  1125.         j = i;
  1126.       } else {
  1127.         s++;
  1128.       }
  1129.     }
  1130.     let itz = `${f.length}.${s}.${w}`;
  1131.     if (!d) {
  1132.       return itz;
  1133.     } else if (itz !== d) {
  1134.       console.warn('fnIntegrity=false', itz);
  1135.       return false;
  1136.     } else {
  1137.       return true;
  1138.     }
  1139.   }
  1140.  
  1141.  
  1142.   const px2cm = (px) => px * window.devicePixelRatio * 0.026458333;
  1143.   const px2mm = (px) => px * window.devicePixelRatio * 0.26458333;
  1144.  
  1145.  
  1146.   ; (ENABLE_FLAGS_MAINTAIN_STABLE_LIST || ENABLE_FLAGS_REUSE_COMPONENTS) && (() => {
  1147.  
  1148.     const _config_ = () => {
  1149.       try {
  1150.         return ytcfg.data_;
  1151.       } catch (e) { }
  1152.       return null;
  1153.     };
  1154.  
  1155.     const flagsFn = (EXPERIMENT_FLAGS) => {
  1156.  
  1157.       // console.log(700)
  1158.  
  1159.       if (!EXPERIMENT_FLAGS) return;
  1160.  
  1161.       if (ENABLE_FLAGS_MAINTAIN_STABLE_LIST) {
  1162.         if (USE_MAINTAIN_STABLE_LIST_ONLY_WHEN_KS_FLAG_IS_SET ? EXPERIMENT_FLAGS.kevlar_should_maintain_stable_list === true : true) {
  1163.           // EXPERIMENT_FLAGS.kevlar_tuner_should_test_maintain_stable_list = true; // timestamp toggle issue
  1164.           EXPERIMENT_FLAGS.kevlar_should_maintain_stable_list = true;
  1165.           // console.log(701)
  1166.         }
  1167.       }
  1168.  
  1169.       if (ENABLE_FLAGS_REUSE_COMPONENTS) {
  1170.         EXPERIMENT_FLAGS.kevlar_tuner_should_test_reuse_components = true;
  1171.         EXPERIMENT_FLAGS.kevlar_tuner_should_reuse_components = true;
  1172.         // console.log(702);
  1173.       }
  1174.  
  1175.     };
  1176.  
  1177.     const uf = (config_) => {
  1178.       config_ = config_ || _config_();
  1179.       if (config_) {
  1180.         const { EXPERIMENT_FLAGS, EXPERIMENTS_FORCED_FLAGS } = config_;
  1181.         if (EXPERIMENT_FLAGS) {
  1182.           flagsFn(EXPERIMENT_FLAGS);
  1183.           if (EXPERIMENTS_FORCED_FLAGS) flagsFn(EXPERIMENTS_FORCED_FLAGS);
  1184.         }
  1185.       }
  1186.     }
  1187.  
  1188.     window._ytConfigHacks.add((config_) => {
  1189.       uf(config_);
  1190.     });
  1191.  
  1192.     uf();
  1193.  
  1194.   })();
  1195.  
  1196.   if (DISABLE_Translation_By_Google) {
  1197.  
  1198.     let mo = new MutationObserver(() => {
  1199.  
  1200.       if (!mo) return;
  1201.       let h = document.head;
  1202.       if (!h) return;
  1203.       mo.disconnect();
  1204.       mo.takeRecords();
  1205.       mo = null;
  1206.  
  1207.       let meta = document.createElement('meta');
  1208.       meta.setAttribute('name', 'google');
  1209.       meta.setAttribute('content', 'notranslate');
  1210.       h.appendChild(meta);
  1211.  
  1212.  
  1213.     });
  1214.     mo.observe(document, { subtree: true, childList: true });
  1215.   }
  1216.  
  1217.  
  1218.   console.assert(MAX_ITEMS_FOR_TOTAL_DISPLAY > 0 && MAX_ITEMS_FOR_FULL_FLUSH > 0 && MAX_ITEMS_FOR_TOTAL_DISPLAY > MAX_ITEMS_FOR_FULL_FLUSH)
  1219.  
  1220.   let ENABLE_DELAYED_CHAT_OCCURRENCE_CAPABLE = false;
  1221.   const isContainSupport = CSS.supports('contain', 'layout paint style');
  1222.   if (!isContainSupport) {
  1223.     console.warn("Your browser does not support css property 'contain'.\nPlease upgrade to the latest version.".trim());
  1224.   } else {
  1225.     ENABLE_DELAYED_CHAT_OCCURRENCE_CAPABLE = true;
  1226.   }
  1227.  
  1228.   let ENABLE_OVERFLOW_ANCHOR_CAPABLE = false;
  1229.   const isOverflowAnchorSupport = CSS.supports('overflow-anchor', 'auto');
  1230.   if (!isOverflowAnchorSupport) {
  1231.     console.warn("Your browser does not support css property 'overflow-anchor'.\nPlease upgrade to the latest version.".trim());
  1232.   } else {
  1233.     ENABLE_OVERFLOW_ANCHOR_CAPABLE = true;
  1234.   }
  1235.  
  1236.   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.
  1237.  
  1238.   const ENABLE_OVERFLOW_ANCHOR = ENABLE_OVERFLOW_ANCHOR_PREFERRED && ENABLE_OVERFLOW_ANCHOR_CAPABLE && ENABLE_NO_SMOOTH_TRANSFORM;
  1239.   const ENABLE_DELAYED_CHAT_OCCURRENCE = ENABLE_DELAYED_CHAT_OCCURRENCE_PREFERRED && ENABLE_DELAYED_CHAT_OCCURRENCE_CAPABLE && ENABLE_OVERFLOW_ANCHOR && ENABLE_NO_SMOOTH_TRANSFORM && NOT_FIREFOX;
  1240.  
  1241.   let hasTimerModified = null;
  1242.   const DO_CHECK_TICKER_BACKGROUND_OVERRIDED = !!ATTEMPT_ANIMATED_TICKER_BACKGROUND || ENABLE_RAF_HACK_TICKERS;
  1243.  
  1244.   const fxOperator = (proto, propertyName) => {
  1245.     let propertyDescriptorGetter = null;
  1246.     try {
  1247.       propertyDescriptorGetter = Object.getOwnPropertyDescriptor(proto, propertyName).get;
  1248.     } catch (e) { }
  1249.     return typeof propertyDescriptorGetter === 'function' ? (e) => {
  1250.       try {
  1251.  
  1252.         return propertyDescriptorGetter.call(dr(e));
  1253.       } catch (e) { }
  1254.       return e[propertyName];
  1255.     } : (e) => e[propertyName];
  1256.   };
  1257.  
  1258.   const nodeParent = fxOperator(Node.prototype, 'parentNode');
  1259.   // const nFirstElem = fxOperator(HTMLElement.prototype, 'firstElementChild');
  1260.   const nPrevElem = fxOperator(HTMLElement.prototype, 'previousElementSibling');
  1261.   const nNextElem = fxOperator(HTMLElement.prototype, 'nextElementSibling');
  1262.   const nLastElem = fxOperator(HTMLElement.prototype, 'lastElementChild');
  1263.  
  1264.   const groupCollapsed = (text1, text2) => {
  1265.  
  1266.     console.groupCollapsed(`%c${text1}%c${text2}`,
  1267.       "background-color: #010502; color: #6acafe; font-weight: 700; padding: 2px;",
  1268.       "background-color: #010502; color: #6ad9fe; font-weight: 300; padding: 2px;"
  1269.     );
  1270.   }
  1271.  
  1272.   // const microNow = () => performance.now() + (performance.timeOrigin || performance.timing.navigationStart);
  1273.  
  1274.  
  1275.   const EVENT_KEY_ON_REGISTRY_READY = "ytI-ce-registry-created";
  1276.   const onRegistryReady = (callback) => {
  1277.     if (typeof customElements === 'undefined') {
  1278.       if (!('__CE_registry' in document)) {
  1279.         // https://github.com/webcomponents/polyfills/
  1280.         Object.defineProperty(document, '__CE_registry', {
  1281.           get() {
  1282.             // return undefined
  1283.           },
  1284.           set(nv) {
  1285.             if (typeof nv == 'object') {
  1286.               delete this.__CE_registry;
  1287.               this.__CE_registry = nv;
  1288.               this.dispatchEvent(new CustomEvent(EVENT_KEY_ON_REGISTRY_READY));
  1289.             }
  1290.             return true;
  1291.           },
  1292.           enumerable: false,
  1293.           configurable: true
  1294.         })
  1295.       }
  1296.       let eventHandler = (evt) => {
  1297.         document.removeEventListener(EVENT_KEY_ON_REGISTRY_READY, eventHandler, false);
  1298.         const f = callback;
  1299.         callback = null;
  1300.         eventHandler = null;
  1301.         f();
  1302.       };
  1303.       document.addEventListener(EVENT_KEY_ON_REGISTRY_READY, eventHandler, false);
  1304.     } else {
  1305.       callback();
  1306.     }
  1307.   };
  1308.  
  1309.   const promiseForCustomYtElementsReady = new Promise(onRegistryReady);
  1310.  
  1311.   const renderReadyPn = typeof ResizeObserver !== 'undefined' ? (sizingTarget) => {
  1312.  
  1313.     return new Promise(resolve => {
  1314.  
  1315.       let ro = new ResizeObserver(entries => {
  1316.         if (entries && entries.length >= 1) {
  1317.           resolve();
  1318.           ro.disconnect();
  1319.           ro = null;
  1320.         }
  1321.       });
  1322.       ro.observe(sizingTarget);
  1323.  
  1324.  
  1325.  
  1326.     });
  1327.  
  1328.   } : (sizingTarget) => {
  1329.  
  1330.  
  1331.     return new Promise(resolve => {
  1332.  
  1333.       let io = new IntersectionObserver(entries => {
  1334.         if (entries && entries.length >= 1) {
  1335.           resolve();
  1336.           io.disconnect();
  1337.           io = null;
  1338.         }
  1339.       });
  1340.       io.observe(sizingTarget);
  1341.  
  1342.  
  1343.  
  1344.     });
  1345.  
  1346.   };
  1347.  
  1348.   /* globals WeakRef:false */
  1349.  
  1350.   /** @type {(o: Object | null) => WeakRef | null} */
  1351.   const mWeakRef = typeof WeakRef === 'function' ? (o => o ? new WeakRef(o) : null) : (o => o || null);
  1352.  
  1353.   /** @type {(wr: Object | null) => Object | null} */
  1354.   const kRef = (wr => (wr && wr.deref) ? wr.deref() : wr);
  1355.  
  1356.   const getLCRDummy = () => {
  1357.     // direct createElement or createComponent_ will make the emoji rendering crashed. reason TBC
  1358.  
  1359.     return Promise.all([customElements.whenDefined('yt-live-chat-app'), customElements.whenDefined('yt-live-chat-renderer')]).then(async () => {
  1360.  
  1361.       const tag = "yt-live-chat-renderer"
  1362.       let dummy = document.querySelector(tag);
  1363.       if (!dummy) {
  1364.  
  1365.         let mo = null;
  1366.  
  1367.         const ytLiveChatApp = document.querySelector('yt-live-chat-app') || document.createElement('yt-live-chat-app');
  1368.  
  1369.         const lcaProto = getProto(ytLiveChatApp);
  1370.  
  1371.         dummy = await new Promise(resolve => {
  1372.  
  1373.           if (typeof lcaProto.createComponent_ === 'function' && !lcaProto.createComponent99_) {
  1374.  
  1375.             lcaProto.createComponent99_ = lcaProto.createComponent_;
  1376.             lcaProto.createComponent98_ = function (a, b, c) {
  1377.               // (3) ['yt-live-chat-renderer', {…}, true]
  1378.               const r = this.createComponent99_.apply(this, arguments);
  1379.               if (a === 'yt-live-chat-renderer') {
  1380.                 resolve(r);
  1381.               }
  1382.               return r;
  1383.             };
  1384.             lcaProto.createComponent_ = lcaProto.createComponent98_;
  1385.  
  1386.           } else {
  1387.  
  1388.             mo = new MutationObserver(() => {
  1389.               const t = document.querySelector(tag);
  1390.               if (t) {
  1391.                 resolve(t);
  1392.               }
  1393.             });
  1394.             mo.observe(document, { subtree: true, childList: true })
  1395.           }
  1396.  
  1397.         });
  1398.  
  1399.         if (mo) {
  1400.           mo.disconnect();
  1401.           mo.takeRecords();
  1402.           mo = null;
  1403.         }
  1404.  
  1405.         if (lcaProto.createComponent99_ && lcaProto.createComponent_ && lcaProto.createComponent98_ === lcaProto.createComponent_) {
  1406.           lcaProto.createComponent_ = lcaProto.createComponent99_;
  1407.           lcaProto.createComponent99_ = null;
  1408.           lcaProto.createComponent98_ = null;
  1409.         }
  1410.  
  1411.       }
  1412.       return dummy;
  1413.  
  1414.     });
  1415.   }
  1416.  
  1417.   const { addCssManaged } = (() => {
  1418.  
  1419.     const addFontPreRendering = () => {
  1420.  
  1421.       groupCollapsed("YouTube Super Fast Chat", " | Fonts Pre-Rendering");
  1422.  
  1423.       let efsContainer = document.createElement('elzm-fonts');
  1424.       efsContainer.id = 'elzm-fonts-yk75g'
  1425.  
  1426.       const arr = [];
  1427.       let p = document.createElement('elzm-font');
  1428.       arr.push(p);
  1429.  
  1430.       if (ENABLE_FONT_PRE_RENDERING & 1) {
  1431.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1432.  
  1433.           p = document.createElement('elzm-font');
  1434.           p.style.fontWeight = size;
  1435.           arr.push(p);
  1436.         }
  1437.       }
  1438.  
  1439.       if (ENABLE_FONT_PRE_RENDERING & 2) {
  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 = 'Roboto';
  1444.           p.style.fontWeight = size;
  1445.           arr.push(p);
  1446.         }
  1447.       }
  1448.  
  1449.       if (ENABLE_FONT_PRE_RENDERING & 4) {
  1450.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1451.  
  1452.           p = document.createElement('elzm-font');
  1453.           p.style.fontFamily = '"YouTube Noto",Roboto,Arial,Helvetica,sans-serif';
  1454.           p.style.fontWeight = size;
  1455.           arr.push(p);
  1456.         }
  1457.       }
  1458.  
  1459.  
  1460.       if (ENABLE_FONT_PRE_RENDERING & 8) {
  1461.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1462.  
  1463.           p = document.createElement('elzm-font');
  1464.           p.style.fontFamily = '"Noto",Roboto,Arial,Helvetica,sans-serif';
  1465.           p.style.fontWeight = size;
  1466.           arr.push(p);
  1467.         }
  1468.       }
  1469.  
  1470.  
  1471.       if (ENABLE_FONT_PRE_RENDERING & 16) {
  1472.         for (const size of [100, 200, 300, 400, 500, 600, 700, 800, 900]) {
  1473.  
  1474.           p = document.createElement('elzm-font');
  1475.           p.style.fontFamily = 'sans-serif';
  1476.           p.style.fontWeight = size;
  1477.           arr.push(p);
  1478.         }
  1479.       }
  1480.  
  1481.       console.log('number of elzm-font elements', arr.length);
  1482.  
  1483.       HTMLElement.prototype.append.apply(efsContainer, arr);
  1484.  
  1485.       (document.body || document.documentElement).appendChild(efsContainer);
  1486.  
  1487.  
  1488.       console.log('elzm-font elements have been added to the page for rendering.');
  1489.  
  1490.       console.groupEnd();
  1491.  
  1492.     }
  1493.  
  1494.     let isCssAdded = false;
  1495.  
  1496.     function addCssElement() {
  1497.       let s = document.createElement('style');
  1498.       s.id = 'ewRvC';
  1499.       return s;
  1500.     }
  1501.  
  1502.     const addCssManaged = () => {
  1503.       if (!isCssAdded && document.documentElement && document.head) {
  1504.         isCssAdded = true;
  1505.         document.head.appendChild(dr(addCssElement())).textContent = addCss();
  1506.         if (ENABLE_FONT_PRE_RENDERING) {
  1507.           Promise.resolve().then(addFontPreRendering)
  1508.         }
  1509.       }
  1510.     }
  1511.  
  1512.     return { addCssManaged };
  1513.   })();
  1514.  
  1515.  
  1516.   const { setupStyle } = (() => {
  1517.  
  1518.     const sp7 = Symbol();
  1519.  
  1520.     const proxyHelperFn = (dummy) => ({
  1521.  
  1522.       get(target, prop) {
  1523.         return (prop in dummy) ? dummy[prop] : prop === sp7 ? target : target[prop];
  1524.       },
  1525.       set(target, prop, value) {
  1526.         if (!(prop in dummy)) {
  1527.           target[prop] = value;
  1528.         }
  1529.         return true;
  1530.       },
  1531.       has(target, prop) {
  1532.         return (prop in target);
  1533.       },
  1534.       deleteProperty(target, prop) {
  1535.         return true;
  1536.       },
  1537.       ownKeys(target) {
  1538.         return Object.keys(target);
  1539.       },
  1540.       defineProperty(target, key, descriptor) {
  1541.         return Object.defineProperty(target, key, descriptor);
  1542.       },
  1543.       getOwnPropertyDescriptor(target, key) {
  1544.         return Object.getOwnPropertyDescriptor(target, key);
  1545.       },
  1546.  
  1547.     });
  1548.  
  1549.     const setupStyle = (m1, m2) => {
  1550.       if (!ENABLE_NO_SMOOTH_TRANSFORM) return;
  1551.  
  1552.       const dummy1v = {
  1553.         transform: '',
  1554.         height: '',
  1555.         minHeight: '',
  1556.         paddingBottom: '',
  1557.         paddingTop: ''
  1558.       };
  1559.  
  1560.       const dummyStyleFn = (k) => (function () { const style = this[sp7]; return style[k](...arguments); });
  1561.       for (const k of ['toString', 'getPropertyPriority', 'getPropertyValue', 'item', 'removeProperty', 'setProperty']) {
  1562.         dummy1v[k] = dummyStyleFn(k);
  1563.       }
  1564.  
  1565.       const dummy1p = proxyHelperFn(dummy1v);
  1566.       const sp1v = new Proxy(m1.style, dummy1p);
  1567.       const sp2v = new Proxy(m2.style, dummy1p);
  1568.       Object.defineProperty(m1, 'style', { get() { return sp1v }, set() { }, enumerable: true, configurable: true });
  1569.       Object.defineProperty(m2, 'style', { get() { return sp2v }, set() { }, enumerable: true, configurable: true });
  1570.       m1.removeAttribute("style");
  1571.       m2.removeAttribute("style");
  1572.  
  1573.     }
  1574.  
  1575.     return { setupStyle };
  1576.  
  1577.   })();
  1578.  
  1579.  
  1580.  
  1581.   function setThumbnails(config) {
  1582.  
  1583.     const { baseObject, thumbnails, flag0, imageLinks } = config;
  1584.  
  1585.     if (flag0 || (ENABLE_PRELOAD_THUMBNAIL && imageLinks)) {
  1586.  
  1587.  
  1588.       if (thumbnails && thumbnails.length > 0) {
  1589.         if (flag0 > 0 && thumbnails.length > 1) {
  1590.           let pSize = 0;
  1591.           let newThumbnails = [];
  1592.           for (const thumbnail of thumbnails) {
  1593.             if (!thumbnail || !thumbnail.url) continue;
  1594.             const squarePhoto = thumbnail.width === thumbnail.height && typeof thumbnail.width === 'number';
  1595.             const condSize = pSize <= 0 || (flag0 === 1 ? pSize > thumbnail.width : pSize < thumbnail.width);
  1596.             const leastSizeFulfilled = squarePhoto ? thumbnail.width >= LEAST_IMAGE_SIZE : true;
  1597.             if ((!squarePhoto || condSize) && leastSizeFulfilled) {
  1598.               newThumbnails.push(thumbnail);
  1599.               if (imageLinks) imageLinks.add(thumbnail.url);
  1600.             }
  1601.             if (squarePhoto && condSize && leastSizeFulfilled) {
  1602.               pSize = thumbnail.width;
  1603.             }
  1604.           }
  1605.           if (thumbnails.length !== newThumbnails.length && thumbnails === baseObject.thumbnails && newThumbnails.length > 0) {
  1606.             baseObject.thumbnails = newThumbnails;
  1607.           } else {
  1608.             newThumbnails.length = 0;
  1609.           }
  1610.           newThumbnails = null;
  1611.         } else {
  1612.           for (const thumbnail of thumbnails) {
  1613.             if (thumbnail && thumbnail.url) {
  1614.               if (imageLinks) imageLinks.add(thumbnail.url);
  1615.             }
  1616.           }
  1617.         }
  1618.       }
  1619.  
  1620.     }
  1621.   }
  1622.  
  1623.   function fixLiveChatItem(item, imageLinks) {
  1624.     const liveChatTextMessageRenderer = (item || 0).liveChatTextMessageRenderer || 0;
  1625.     if (liveChatTextMessageRenderer) {
  1626.       const messageRuns = (liveChatTextMessageRenderer.message || 0).runs || 0;
  1627.       if (messageRuns && messageRuns.length > 0) {
  1628.         for (const run of messageRuns) {
  1629.           const emojiImage = (((run || 0).emoji || 0).image || 0);
  1630.           setThumbnails({
  1631.             baseObject: emojiImage,
  1632.             thumbnails: emojiImage.thumbnails,
  1633.             flag0: EMOJI_IMAGE_SINGLE_THUMBNAIL,
  1634.             imageLinks
  1635.           });
  1636.         }
  1637.       }
  1638.       const authorPhoto = liveChatTextMessageRenderer.authorPhoto || 0;
  1639.       setThumbnails({
  1640.         baseObject: authorPhoto,
  1641.         thumbnails: authorPhoto.thumbnails,
  1642.         flag0: AUTHOR_PHOTO_SINGLE_THUMBNAIL,
  1643.         imageLinks
  1644.       });
  1645.     }
  1646.   }
  1647.  
  1648.  
  1649.  
  1650.   let kptPF = null;
  1651.   const emojiPrefetched = new Set();
  1652.   const authorPhotoPrefetched = new Set();
  1653.  
  1654.   function linker(link, rel, href, _as) {
  1655.     return new Promise(resolve => {
  1656.       if (!link) link = document.createElement('link');
  1657.       link.rel = rel;
  1658.       if (_as) link.setAttribute('as', _as);
  1659.       link.onload = function () {
  1660.         resolve({
  1661.           link: this,
  1662.           success: true
  1663.         })
  1664.         this.remove();
  1665.       };
  1666.       link.onerror = function () {
  1667.         resolve({
  1668.           link: this,
  1669.           success: false
  1670.         });
  1671.         this.remove();
  1672.       };
  1673.       link.href = href;
  1674.       document.head.appendChild(link);
  1675.       link = null;
  1676.     });
  1677.   }
  1678.  
  1679.  
  1680.  
  1681.   const cleanContext = async (win) => {
  1682.     const waitFn = requestAnimationFrame; // shall have been binded to window
  1683.     try {
  1684.       let mx = 16; // MAX TRIAL
  1685.       const frameId = 'vanillajs-iframe-v1';
  1686.       /** @type {HTMLIFrameElement | null} */
  1687.       let frame = document.getElementById(frameId);
  1688.       let removeIframeFn = null;
  1689.       if (!frame) {
  1690.         frame = document.createElement('iframe');
  1691.         frame.id = frameId;
  1692.         const blobURL = typeof webkitCancelAnimationFrame === 'function' ? (frame.src = URL.createObjectURL(new Blob([], { type: 'text/html' }))) : null; // avoid Brave Crash
  1693.         frame.sandbox = 'allow-same-origin'; // script cannot be run inside iframe but API can be obtained from iframe
  1694.         let n = document.createElement('noscript'); // wrap into NOSCRPIT to avoid reflow (layouting)
  1695.         n.appendChild(frame);
  1696.         while (!document.documentElement && mx-- > 0) await new Promise(waitFn); // requestAnimationFrame here could get modified by YouTube engine
  1697.         const root = document.documentElement;
  1698.         root.appendChild(n); // throw error if root is null due to exceeding MAX TRIAL
  1699.         if (blobURL) Promise.resolve().then(() => URL.revokeObjectURL(blobURL));
  1700.  
  1701.         removeIframeFn = (setTimeout) => {
  1702.           const removeIframeOnDocumentReady = (e) => {
  1703.             e && win.removeEventListener("DOMContentLoaded", removeIframeOnDocumentReady, false);
  1704.             e = n;
  1705.             n = win = removeIframeFn = 0;
  1706.             setTimeout ? setTimeout(() => e.remove(), 200) : e.remove();
  1707.           }
  1708.           if (!setTimeout || document.readyState !== 'loading') {
  1709.             removeIframeOnDocumentReady();
  1710.           } else {
  1711.             win.addEventListener("DOMContentLoaded", removeIframeOnDocumentReady, false);
  1712.           }
  1713.         }
  1714.       }
  1715.       while (!frame.contentWindow && mx-- > 0) await new Promise(waitFn);
  1716.       const fc = frame.contentWindow;
  1717.       if (!fc) throw "window is not found."; // throw error if root is null due to exceeding MAX TRIAL
  1718.       try {
  1719.         const { requestAnimationFrame, setTimeout, cancelAnimationFrame, setInterval, clearInterval, getComputedStyle } = fc;
  1720.         const res = { requestAnimationFrame, setTimeout, cancelAnimationFrame, setInterval, clearInterval, getComputedStyle };
  1721.         for (let k in res) res[k] = res[k].bind(win); // necessary
  1722.         if (removeIframeFn) Promise.resolve(res.setTimeout).then(removeIframeFn);
  1723.  
  1724.         /** @type {HTMLElement} */
  1725.         const HTMLElementProto = fc.HTMLElement.prototype;
  1726.         /** @type {EventTarget} */
  1727.         const EventTargetProto = fc.EventTarget.prototype;
  1728.         // jsonParseFix = {
  1729.         //   _JSON: fc.JSON, _parse: fc.JSON.parse
  1730.         // }
  1731.         return {
  1732.           ...res,
  1733.           animate: HTMLElementProto.animate,
  1734.           addEventListener: EventTargetProto.addEventListener,
  1735.           removeEventListener: EventTargetProto.removeEventListener
  1736.         };
  1737.       } catch (e) {
  1738.         if (removeIframeFn) removeIframeFn();
  1739.         return null;
  1740.       }
  1741.     } catch (e) {
  1742.       console.warn(e);
  1743.       return null;
  1744.     }
  1745.   };
  1746.  
  1747.   cleanContext(win).then(__CONTEXT__ => {
  1748.     if (!__CONTEXT__) return null;
  1749.  
  1750.     const { requestAnimationFrame, setTimeout, cancelAnimationFrame, setInterval, clearInterval, animate, getComputedStyle, addEventListener, removeEventListener } = __CONTEXT__;
  1751.  
  1752.     const wmComputedStyle = new WeakMap();
  1753.     const getComputedStyleCached = (elem) => {
  1754.         let cs = wmComputedStyle.get(elem);
  1755.         if (!cs) {
  1756.             cs = getComputedStyle(elem);
  1757.             wmComputedStyle.set(elem, cs);
  1758.         }
  1759.         return cs;
  1760.     }
  1761.  
  1762.     let foregroundPromise = null;
  1763.     const foregroundPromiseFn = () => (foregroundPromise = (foregroundPromise || new Promise(resolve => {
  1764.       requestAnimationFrame(() => {
  1765.         foregroundPromise = null;
  1766.         resolve();
  1767.       });
  1768.     })));
  1769.  
  1770.     let playerState = null;
  1771.     let _playerState = null;
  1772.     let lastPlayerProgress = null;
  1773.     let relayCount = 0;
  1774.     let playerEventsByIframeRelay = false;
  1775.     let isPlayProgressTriggered = false;
  1776.     let waitForInitialDataCompletion = 0;
  1777.  
  1778.  
  1779.  
  1780.     let aeConstructor = null;
  1781.  
  1782.     // << __openedChanged82 >>
  1783.     let currentMenuPivotWR = null;
  1784.  
  1785.     // << if DO_PARTICIPANT_LIST_HACKS >>
  1786.     const beforeParticipantsMap = new WeakMap();
  1787.     // << end >>
  1788.  
  1789.  
  1790.  
  1791.     // << if onRegistryReadyForDOMOperations >>
  1792.  
  1793.     let dt0 = Date.now() - 2000;
  1794.     const dateNow = () => Date.now() - dt0;
  1795.     // let lastScroll = 0;
  1796.     // let lastLShow = 0;
  1797.     let lastWheel = 0;
  1798.     let lastMouseDown = 0;
  1799.     let lastMouseUp = 0;
  1800.     let currentMouseDown = false;
  1801.     let lastTouchDown = 0;
  1802.     let lastTouchUp = 0;
  1803.     let currentTouchDown = false;
  1804.     let lastUserInteraction = 0;
  1805.  
  1806.     let scrollChatFn = null;
  1807.  
  1808.     let skipDontRender = true; // true first; false by flushActiveItems_
  1809.     let allowDontRender = null;
  1810.  
  1811.     // ---- #items mutation ----
  1812.     let sk35zResolveFn = null;
  1813.     let firstList = true;
  1814.  
  1815.     // << end >>
  1816.  
  1817.     class RAFHub {
  1818.       constructor() {
  1819.         /** @type {number} */
  1820.         this.startAt = 8170;
  1821.         /** @type {number} */
  1822.         this.counter = 0;
  1823.         /** @type {number} */
  1824.         this.rid = 0;
  1825.         /** @type {Map<number, FrameRequestCallback>} */
  1826.         this.funcs = new Map();
  1827.         const funcs = this.funcs;
  1828.         /** @type {FrameRequestCallback} */
  1829.         this.bCallback = this.mCallback.bind(this);
  1830.         this.pClear = () => funcs.clear();
  1831.         this.keepRAF = false;
  1832.       }
  1833.       /** @param {DOMHighResTimeStamp} highResTime */
  1834.       mCallback(highResTime) {
  1835.         this.rid = 0;
  1836.         Promise.resolve().then(this.pClear);
  1837.         this.funcs.forEach(func => Promise.resolve(highResTime).then(func).catch(console.warn));
  1838.       }
  1839.       /** @param {FrameRequestCallback} f */
  1840.       request(f) {
  1841.         if (this.counter > 1e9) this.counter = 9;
  1842.         let cid = this.startAt + (++this.counter);
  1843.         this.funcs.set(cid, f);
  1844.         if (this.rid === 0) this.rid = requestAnimationFrame(this.bCallback);
  1845.         return cid;
  1846.       }
  1847.       /** @param {number} cid */
  1848.       cancel(cid) {
  1849.         cid = +cid;
  1850.         if (cid > 0) {
  1851.           if (cid <= this.startAt) {
  1852.             return cancelAnimationFrame(cid);
  1853.           }
  1854.           if (this.rid > 0) {
  1855.             this.funcs.delete(cid);
  1856.             if (this.funcs.size === 0 && !this.keepRAF) {
  1857.               cancelAnimationFrame(this.rid);
  1858.               this.rid = 0;
  1859.             }
  1860.           }
  1861.         }
  1862.       }
  1863.     }
  1864.  
  1865.     function basePrefetching() {
  1866.  
  1867.       new Promise(resolve => {
  1868.  
  1869.         if (document.readyState !== 'loading') {
  1870.           resolve();
  1871.         } else {
  1872.           win.addEventListener("DOMContentLoaded", resolve, false);
  1873.         }
  1874.  
  1875.       }).then(() => {
  1876.         const hostL1 = [
  1877.           'https://www.youtube.com', 'https://googlevideo.com',
  1878.           'https://googleapis.com', 'https://accounts.youtube.com',
  1879.           'https://www.gstatic.com', 'https://ggpht.com',
  1880.           'https://yt3.ggpht.com', 'https://yt4.ggpht.com'
  1881.         ];
  1882.  
  1883.         const hostL2 = [
  1884.           'https://youtube.com',
  1885.           'https://fonts.googleapis.com', 'https://fonts.gstatic.com'
  1886.         ];
  1887.  
  1888.         let link = null;
  1889.  
  1890.         function kn() {
  1891.  
  1892.           link = document.createElement('link');
  1893.           if (link.relList && link.relList.supports) {
  1894.             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)
  1895.           } else {
  1896.             kptPF = 0;
  1897.           }
  1898.  
  1899.           groupCollapsed("YouTube Super Fast Chat", " | PREFETCH SUPPORTS");
  1900.           if (ENABLE_BASE_PREFETCHING) console.log('dns-prefetch', (kptPF & 1) ? 'OK' : 'NG');
  1901.           if (ENABLE_BASE_PREFETCHING) console.log('preconnect', (kptPF & 2) ? 'OK' : 'NG');
  1902.           if (ENABLE_PRELOAD_THUMBNAIL) console.log('prefetch', (kptPF & 4) ? 'OK' : 'NG');
  1903.           // console.log('subresource', (kptPF & 8) ? 'OK' : 'NG');
  1904.           if (ENABLE_PRELOAD_THUMBNAIL) console.log('preload', (kptPF & 16) ? 'OK' : 'NG');
  1905.           console.groupEnd();
  1906.  
  1907.         }
  1908.  
  1909.         for (const h of hostL1) {
  1910.  
  1911.           if (kptPF === null) kn();
  1912.           if (ENABLE_BASE_PREFETCHING) {
  1913.             // if (kptPF & 1) {
  1914.             //   linker(link, 'dns-prefetch', h);
  1915.             //   link = null;
  1916.             // }
  1917.             if (kptPF & 2) {
  1918.               linker(link, 'preconnect', h);
  1919.               link = null;
  1920.             }
  1921.           }
  1922.         }
  1923.  
  1924.         for (const h of hostL2) {
  1925.           if (kptPF === null) kn();
  1926.           if (ENABLE_BASE_PREFETCHING) {
  1927.             if (kptPF & 1) {
  1928.               linker(link, 'dns-prefetch', h);
  1929.               link = null;
  1930.             }
  1931.           }
  1932.         }
  1933.  
  1934.       })
  1935.  
  1936.  
  1937.     }
  1938.  
  1939.     if (DO_LINK_PREFETCH) basePrefetching();
  1940.  
  1941.     const { notifyPath7081 } = (() => {
  1942.       // DO_PARTICIPANT_LIST_HACKS
  1943.  
  1944.       const mutexParticipants = new Mutex();
  1945.  
  1946.       let uvid = 0;
  1947.       let r95dm = 0;
  1948.       let c95dm = -1;
  1949.  
  1950.       const foundMap = (base, content) => {
  1951.         /*
  1952.           let lastSearch = 0;
  1953.           let founds = base.map(baseEntry => {
  1954.             let search = content.indexOf(baseEntry, lastSearch);
  1955.             if (search < 0) return false;
  1956.             lastSearch = search + 1;
  1957.             return true;
  1958.           });
  1959.           return founds;
  1960.         */
  1961.         const contentSet = new Set(content);
  1962.         return base.map(baseEntry => contentSet.has(baseEntry));
  1963.  
  1964.       }
  1965.  
  1966.  
  1967.  
  1968.       const spliceIndicesFunc = (beforeParticipants, participants, idsBefore, idsAfter) => {
  1969.  
  1970.         const handler1 = {
  1971.           get(target, prop, receiver) {
  1972.             if (prop === 'object') {
  1973.               return participants; // avoid memory leakage
  1974.             }
  1975.             if (prop === 'type') {
  1976.               return 'splice';
  1977.             }
  1978.             if (prop === '__proxy312__') return 1;
  1979.             return target[prop];
  1980.           }
  1981.         };
  1982.         const releaser = () => {
  1983.           participants = null;
  1984.         }
  1985.  
  1986.         let foundsForAfter = foundMap(idsAfter, idsBefore);
  1987.         let foundsForBefore = foundMap(idsBefore, idsAfter);
  1988.  
  1989.         let indexSplices = [];
  1990.         let contentUpdates = [];
  1991.         for (let i = 0, j = 0; i < foundsForBefore.length || j < foundsForAfter.length;) {
  1992.           if (beforeParticipants[i] === participants[j]) {
  1993.             i++; j++;
  1994.           } else if (idsBefore[i] === idsAfter[j]) {
  1995.             // content changed
  1996.             contentUpdates.push({ indexI: i, indexJ: j })
  1997.             i++; j++;
  1998.           } else {
  1999.             let addedCount = 0;
  2000.             for (let q = j; q < foundsForAfter.length; q++) {
  2001.               if (foundsForAfter[q] === false) addedCount++;
  2002.               else break;
  2003.             }
  2004.             let removedCount = 0;
  2005.             for (let q = i; q < foundsForBefore.length; q++) {
  2006.               if (foundsForBefore[q] === false) removedCount++;
  2007.               else break;
  2008.             }
  2009.             if (!addedCount && !removedCount) {
  2010.               throw 'ERROR(0xFF32): spliceIndicesFunc';
  2011.             }
  2012.             indexSplices.push(new Proxy({
  2013.               index: j,
  2014.               addedCount: addedCount,
  2015.               removed: removedCount >= 1 ? beforeParticipants.slice(i, i + removedCount) : []
  2016.             }, handler1));
  2017.             i += removedCount;
  2018.             j += addedCount;
  2019.           }
  2020.         }
  2021.         foundsForBefore = null;
  2022.         foundsForAfter = null;
  2023.         idsBefore = null;
  2024.         idsAfter = null;
  2025.         beforeParticipants = null;
  2026.         return { indexSplices, contentUpdates, releaser };
  2027.  
  2028.       }
  2029.  
  2030.       /*
  2031.  
  2032.       customElements.get("yt-live-chat-participant-renderer").prototype.notifyPath=function(){  console.log(123);  console.log(new Error().stack)}
  2033.  
  2034.       VM63631:1 Error
  2035.       at customElements.get.notifyPath (<anonymous>:1:122)
  2036.       at e.forwardRendererStamperChanges_ (live_chat_polymer.js:4453:35)
  2037.       at e.rendererStamperApplyChangeRecord_ (live_chat_polymer.js:4451:12)
  2038.       at e.rendererStamperObserver_ (live_chat_polymer.js:4448:149)
  2039.       at Object.pu [as fn] (live_chat_polymer.js:1692:118)
  2040.       at ju (live_chat_polymer.js:1674:217)
  2041.       at a._propertiesChanged (live_chat_polymer.js:1726:122)
  2042.       at b._flushProperties (live_chat_polymer.js:1597:200)
  2043.       at a._invalidateProperties (live_chat_polymer.js:1718:69)
  2044.       at a.notifyPath (live_chat_polymer.js:1741:182)
  2045.  
  2046.       */
  2047.  
  2048.       function convertToIds(participants) {
  2049.         return participants.map(participant => {
  2050.           if (!participant || typeof participant !== 'object') {
  2051.             console.warn('Error(0xFA41): convertToIds', participant);
  2052.             return participant; // just in case
  2053.           }
  2054.           let keys = Object.keys(participant);
  2055.           // liveChatTextMessageRenderer
  2056.           // liveChatParticipantRenderer - livestream channel owner [no authorExternalChannelId]
  2057.           // liveChatPaidMessageRenderer
  2058.           /*
  2059.  
  2060.             'yt-live-chat-participant-renderer' utilizes the following:
  2061.             authorName.simpleText: string
  2062.             authorPhoto.thumbnails: Object{url:string, width:int, height:int} []
  2063.             authorBadges[].liveChatAuthorBadgeRenderer.icon.iconType: string
  2064.             authorBadges[].liveChatAuthorBadgeRenderer.tooltip: string
  2065.             authorBadges[].liveChatAuthorBadgeRenderer.accessibility.accessibilityData: Object{label:string}
  2066.  
  2067.           */
  2068.           if (keys.length !== 1) {
  2069.             console.warn('Error(0xFA42): convertToIds', participant);
  2070.             return participant; // just in case
  2071.           }
  2072.           let key = keys[0];
  2073.           let renderer = (participant[key] || 0);
  2074.           let authorName = (renderer.authorName || 0);
  2075.           let text = `${authorName.simpleText || authorName.text}`
  2076.           let res = participant; // fallback if it is not a vaild entry
  2077.           if (typeof text !== 'string') {
  2078.             console.warn('Error(0xFA53): convertToIds', participant);
  2079.           } else {
  2080.             text = `${renderer.authorExternalChannelId || 'null'}|${text || ''}`;
  2081.             if (text.length > 1) res = text;
  2082.           }
  2083.           return res;
  2084.           // return renderer?`${renderer.id}|${renderer.authorExternalChannelId}`: '';
  2085.           // note: renderer.id will be changed if the user typed something to trigger the update of the participants' record.
  2086.         });
  2087.       }
  2088.  
  2089.       const checkChangeToParticipantRendererContent = CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT ? (p1, p2) => {
  2090.         // just update when content is changed.
  2091.         if (p1.authorName !== p2.authorName) return true;
  2092.         if (p1.authorPhoto !== p2.authorPhoto) return true;
  2093.         if (p1.authorBadges !== p2.authorBadges) return true;
  2094.         return false;
  2095.       } : (p1, p2) => {
  2096.         // keep integrity all the time.
  2097.         return p1 !== p2; // always true
  2098.       }
  2099.  
  2100.       function notifyPath7081(path) { // cnt "yt-live-chat-participant-list-renderer"
  2101.  
  2102.         if (PARTICIPANT_UPDATE_ONLY_ONLY_IF_MODIFICATION_DETECTED) {
  2103.           if (path !== "participantsManager.participants") {
  2104.             return this.__notifyPath5036__.apply(this, arguments);
  2105.           }
  2106.           if (c95dm === r95dm) return;
  2107.         } else {
  2108.           const stack = new Error().stack;
  2109.           if (path !== "participantsManager.participants" || stack.indexOf('.onParticipantsChanged') < 0) {
  2110.             return this.__notifyPath5036__.apply(this, arguments);
  2111.           }
  2112.         }
  2113.  
  2114.         if (uvid > 1e8) uvid = uvid % 100;
  2115.         let tid = ++uvid;
  2116.  
  2117.         const cnt = this; // "yt-live-chat-participant-list-renderer"
  2118.         mutexParticipants.lockWith(lockResolve => {
  2119.  
  2120.           const participants00 = cnt.participantsManager.participants;
  2121.  
  2122.           if (tid !== uvid || typeof (participants00 || 0).splice !== 'function') {
  2123.             lockResolve();
  2124.             return;
  2125.           }
  2126.  
  2127.           let doUpdate = false;
  2128.  
  2129.           if (PARTICIPANT_UPDATE_ONLY_ONLY_IF_MODIFICATION_DETECTED) {
  2130.  
  2131.             if (!participants00.r94dm) {
  2132.               participants00.r94dm = 1;
  2133.               if (++r95dm > 1e9) r95dm = 9;
  2134.               participants00.push = function () {
  2135.                 if (++r95dm > 1e9) r95dm = 9;
  2136.                 return Array.prototype.push.apply(this, arguments);
  2137.               }
  2138.               participants00.pop = function () {
  2139.                 if (++r95dm > 1e9) r95dm = 9;
  2140.                 return Array.prototype.pop.apply(this, arguments);
  2141.               }
  2142.               participants00.shift = function () {
  2143.                 if (++r95dm > 1e9) r95dm = 9;
  2144.                 return Array.prototype.shift.apply(this, arguments);
  2145.               }
  2146.               participants00.unshift = function () {
  2147.                 if (++r95dm > 1e9) r95dm = 9;
  2148.                 return Array.prototype.unshift.apply(this, arguments);
  2149.               }
  2150.               participants00.splice = function () {
  2151.                 if (++r95dm > 1e9) r95dm = 9;
  2152.                 return Array.prototype.splice.apply(this, arguments);
  2153.               }
  2154.               participants00.sort = function () {
  2155.                 if (++r95dm > 1e9) r95dm = 9;
  2156.                 return Array.prototype.sort.apply(this, arguments);
  2157.               }
  2158.               participants00.reverse = function () {
  2159.                 if (++r95dm > 1e9) r95dm = 9;
  2160.                 return Array.prototype.reverse.apply(this, arguments);
  2161.               }
  2162.             }
  2163.  
  2164.             if (c95dm !== r95dm) {
  2165.               c95dm = r95dm;
  2166.               doUpdate = true;
  2167.             }
  2168.  
  2169.           } else {
  2170.             doUpdate = true;
  2171.           }
  2172.  
  2173.           if (!doUpdate) {
  2174.             lockResolve();
  2175.             return;
  2176.           }
  2177.  
  2178.           const participants = participants00.slice(0);
  2179.           const beforeParticipants = beforeParticipantsMap.get(cnt) || [];
  2180.           beforeParticipantsMap.set(cnt, participants);
  2181.  
  2182.           const resPromise = (async () => {
  2183.  
  2184.             if (beforeParticipants.length === 0) {
  2185.               // not error
  2186.               return 0;
  2187.             }
  2188.  
  2189.             let countOfElements = cnt.__getAllParticipantsDOMRenderedLength__()
  2190.  
  2191.             // console.log(participants.length, doms.length) // different if no requestAnimationFrame
  2192.             if (beforeParticipants.length !== countOfElements) {
  2193.               // there is somewrong for the cache. - sometimes happen
  2194.               return 0;
  2195.             }
  2196.  
  2197.             const idsBefore = convertToIds(beforeParticipants);
  2198.             const idsAfter = convertToIds(participants);
  2199.  
  2200.             let { indexSplices, contentUpdates, releaser } = spliceIndicesFunc(beforeParticipants, participants, idsBefore, idsAfter);
  2201.  
  2202.             let res = 1; // default 1 for no update
  2203.  
  2204.             if (indexSplices.length >= 1) {
  2205.  
  2206.  
  2207.               // let p2 =  participants.slice(indexSplices[0].index, indexSplices[0].index+indexSplices[0].addedCount);
  2208.               // let p1 = indexSplices[0].removed;
  2209.               // console.log(indexSplices.length, indexSplices ,p1,p2,  convertToIds(p1),convertToIds(p2))
  2210.  
  2211.               /* folllow
  2212.                   a.notifyPath(c + ".splices", d);
  2213.                   a.notifyPath(c + ".length", b.length);
  2214.               */
  2215.               // stampDomArraySplices_
  2216.  
  2217.  
  2218.               await new Promise(resolve => {
  2219.                 cnt.resolveForDOMRendering781 = resolve;
  2220.  
  2221.                 cnt.__notifyPath5036__("participantsManager.participants.splices", {
  2222.                   indexSplices
  2223.                 });
  2224.                 indexSplices = null;
  2225.                 releaser();
  2226.                 releaser = null;
  2227.                 cnt.__notifyPath5036__("participantsManager.participants.length",
  2228.                   participants.length
  2229.                 );
  2230.  
  2231.               });
  2232.  
  2233.               await Promise.resolve(0); // play safe for the change of 'length'
  2234.               countOfElements = cnt.__getAllParticipantsDOMRenderedLength__();
  2235.  
  2236.               let wrongSize = participants.length !== countOfElements
  2237.               if (wrongSize) {
  2238.                 console.warn("ERROR(0xE2C3): notifyPath7081", beforeParticipants.length, participants.length, doms.length)
  2239.                 return 0;
  2240.               }
  2241.  
  2242.               res = 2 | 4;
  2243.  
  2244.             } else {
  2245.  
  2246.               indexSplices = null;
  2247.               releaser();
  2248.               releaser = null;
  2249.  
  2250.               if (participants.length !== countOfElements) {
  2251.                 // other unhandled cases
  2252.                 return 0;
  2253.               }
  2254.  
  2255.             }
  2256.  
  2257.             // participants.length === countOfElements before contentUpdates
  2258.             if (contentUpdates.length >= 1) {
  2259.               for (const contentUpdate of contentUpdates) {
  2260.                 let isChanged = checkChangeToParticipantRendererContent(beforeParticipants[contentUpdate.indexI], participants[contentUpdate.indexJ]);
  2261.                 if (isChanged) {
  2262.                   cnt.__notifyPath5036__(`participantsManager.participants[${contentUpdate.indexJ}]`);
  2263.                   res |= 4 | 8;
  2264.                 }
  2265.               }
  2266.             }
  2267.             contentUpdates = null;
  2268.  
  2269.             return res;
  2270.  
  2271.  
  2272.           })();
  2273.  
  2274.  
  2275.           resPromise.then(resValue => {
  2276.  
  2277.             const isLogRequired = SHOW_PARTICIPANT_CHANGES_IN_CONSOLE && ((resValue === 0) || ((resValue & 4) === 4));
  2278.             isLogRequired && groupCollapsed("Participant List Change", `tid = ${tid}; res = ${resValue}`);
  2279.             if (resValue === 0) {
  2280.               new Promise(resolve => {
  2281.                 cnt.resolveForDOMRendering781 = resolve;
  2282.                 isLogRequired && console.log("Full Refresh begins");
  2283.                 cnt.__notifyPath5036__("participantsManager.participants"); // full refresh
  2284.               }).then(() => {
  2285.                 isLogRequired && console.log("Full Refresh ends");
  2286.                 console.groupEnd();
  2287.               }).then(lockResolve);
  2288.               return;
  2289.             }
  2290.  
  2291.             const delayLockResolve = (resValue & 4) === 4;
  2292.  
  2293.             if (delayLockResolve) {
  2294.               isLogRequired && console.log(`Number of participants (before): ${beforeParticipants.length}`);
  2295.               isLogRequired && console.log(`Number of participants (after): ${participants.length}`);
  2296.               isLogRequired && console.log(`Total number of rendered participants: ${cnt.__getAllParticipantsDOMRenderedLength__()}`);
  2297.               isLogRequired && console.log(`Participant Renderer Content Updated: ${(resValue & 8) === 8}`);
  2298.               isLogRequired && console.groupEnd();
  2299.               // requestAnimationFrame is required to avoid particiant update during DOM changing (stampDomArraySplices_)
  2300.               // mutex lock with requestAnimationFrame can also disable participants update in background
  2301.               requestAnimationFrame(lockResolve);
  2302.             } else {
  2303.               lockResolve();
  2304.             }
  2305.  
  2306.           });
  2307.  
  2308.         });
  2309.  
  2310.       }
  2311.  
  2312.       return { notifyPath7081 };
  2313.  
  2314.     })();
  2315.  
  2316.     const whenDefinedMultiple = async (tags) => {
  2317.  
  2318.       const sTags = [...new Set(tags)];
  2319.       const len = sTags.length;
  2320.  
  2321.       const pTags = new Array(len);
  2322.       for (let i = 0; i < len; i++) {
  2323.         pTags[i] = customElements.whenDefined(sTags[i]);
  2324.       }
  2325.  
  2326.       await Promise.all(pTags);
  2327.       pTags.length = 0;
  2328.  
  2329.       return sTags;
  2330.  
  2331.     }
  2332.  
  2333.     const onRegistryReadyForDataManipulation = () => {
  2334.  
  2335.       function dummy5035(a, b, c) { }
  2336.       function dummy411(a, b, c) { }
  2337.  
  2338.  
  2339.  
  2340.       customElements.whenDefined("yt-live-chat-participant-list-renderer").then(() => {
  2341.  
  2342.         if (!DO_PARTICIPANT_LIST_HACKS) return;
  2343.  
  2344.         const tag = "yt-live-chat-participant-list-renderer";
  2345.         const cProto = getProto(document.createElement(tag));
  2346.         if (!cProto || typeof cProto.attached !== 'function') {
  2347.           // for _registered, proto.attached shall exist when the element is defined.
  2348.           // for controller extraction, attached shall exist when instance creates.
  2349.           console.warn(`proto.attached for ${tag} is unavailable.`);
  2350.           return;
  2351.         }
  2352.  
  2353.  
  2354.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-participant-list-renderer hacks");
  2355.  
  2356.         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'];
  2357.         const fgs = {};
  2358.         for (const key of fgsArr) fgs[key] = undefined;
  2359.  
  2360.         try {
  2361.           const EXPERIMENT_FLAGS = ytcfg.data_.EXPERIMENT_FLAGS;
  2362.           for (const key of fgsArr) fgs[key] = EXPERIMENT_FLAGS[key];
  2363.         } catch (e) { }
  2364.         console.log(`EXPERIMENT_FLAGS: ${JSON.stringify(fgs, null, 2)}`);
  2365.  
  2366.         const canDoReplacement = (() => {
  2367.           if (typeof cProto.__notifyPath5035__ === 'function' && cProto.__notifyPath5035__.name !== 'dummy5035') {
  2368.             console.warn('YouTube Live Chat Tamer is running.');
  2369.             return;
  2370.           }
  2371.  
  2372.           if (typeof cProto.__attached411__ === 'function' && cProto.__attached411__.name !== 'dummy411') {
  2373.             console.warn('YouTube Live Chat Tamer is running.');
  2374.             return;
  2375.           }
  2376.  
  2377.           cProto.__notifyPath5035__ = dummy5035 // just to against Live Chat Tamer
  2378.           cProto.__attached411__ = dummy411 // just to against Live Chat Tamer
  2379.  
  2380.           if (typeof cProto.flushRenderStamperComponentBindings_ !== 'function' || cProto.flushRenderStamperComponentBindings_.length !== 0) {
  2381.             console.warn("ERROR(0xE355): cProto.flushRenderStamperComponentBindings_ not found");
  2382.             return;
  2383.           }
  2384.  
  2385.           if (typeof cProto.flushRenderStamperComponentBindings66_ === 'function') {
  2386.             console.warn("ERROR(0xE356): cProto.flushRenderStamperComponentBindings66_");
  2387.             return;
  2388.           }
  2389.  
  2390.           if (typeof cProto.__getAllParticipantsDOMRenderedLength__ === 'function') {
  2391.             console.warn("ERROR(0xE357): cProto.__getAllParticipantsDOMRenderedLength__");
  2392.             return;
  2393.           }
  2394.           return true;
  2395.         })();
  2396.  
  2397.         console.log(`Data Manipulation Boost = ${canDoReplacement}`);
  2398.  
  2399.         assertor(() => fnIntegrity(cProto.attached, '0.32.22')) // just warning
  2400.         if (typeof cProto.flushRenderStamperComponentBindings_ === 'function') {
  2401.           const fiRSCB = fnIntegrity(cProto.flushRenderStamperComponentBindings_);
  2402.           const s = fiRSCB.split('.');
  2403.           // Feb 2024: 0.403.247 => NG
  2404.           // if (s[0] === '0' && +s[1] > 381 && +s[1] < 391 && +s[2] > 228 && +s[2] < 238) {
  2405.           //   console.log(`flushRenderStamperComponentBindings_ ### ${fiRSCB} ### - OK`);
  2406.           // } else {
  2407.           //   console.log(`flushRenderStamperComponentBindings_ ### ${fiRSCB} ### - NG`);
  2408.           // }
  2409.           console.log(`flushRenderStamperComponentBindings_ ### ${fiRSCB} ###`);
  2410.         } else {
  2411.           console.log("flushRenderStamperComponentBindings_ - not found");
  2412.         }
  2413.         // assertor(() => fnIntegrity(cProto.flushRenderStamperComponentBindings_, '0.386.233')) // just warning
  2414.  
  2415.         if (typeof cProto.flushRenderStamperComponentBindings_ === 'function') {
  2416.           cProto.flushRenderStamperComponentBindings66_ = cProto.flushRenderStamperComponentBindings_;
  2417.           cProto.flushRenderStamperComponentBindings_ = function () {
  2418.             // console.log('flushRenderStamperComponentBindings_')
  2419.             this.flushRenderStamperComponentBindings66_();
  2420.             if (this.resolveForDOMRendering781) {
  2421.               this.resolveForDOMRendering781();
  2422.               this.resolveForDOMRendering781 = null;
  2423.             }
  2424.           };
  2425.         }
  2426.  
  2427.         cProto.__getAllParticipantsDOMRenderedLength__ = function () {
  2428.           const container = ((this || 0).$ || 0).participants;
  2429.           if (!container) return 0;
  2430.           return HTMLElement.prototype.querySelectorAll.call(container, 'yt-live-chat-participant-renderer').length;
  2431.         }
  2432.  
  2433.         const onPageElements = [...document.querySelectorAll('yt-live-chat-participant-list-renderer:not(.n9fJ3)')];
  2434.  
  2435.         cProto.__attached412__ = cProto.attached;
  2436.         const fpPList = function (hostElement) {
  2437.           const cnt = insp(hostElement);
  2438.           if (beforeParticipantsMap.has(cnt)) return;
  2439.           hostElement.classList.add('n9fJ3');
  2440.  
  2441.           assertor(() => (cnt.__dataEnabled === true && cnt.__dataReady === true));
  2442.           if (typeof cnt.notifyPath !== 'function' || typeof cnt.__notifyPath5036__ !== 'undefined') {
  2443.             console.warn("ERROR(0xE318): yt-live-chat-participant-list-renderer")
  2444.             return;
  2445.           }
  2446.  
  2447.           groupCollapsed("Participant List attached", "");
  2448.           // cnt.$.participants.appendChild = cnt.$.participants.__shady_native_appendChild =  function(){
  2449.           //   console.log(123, 'appendChild');
  2450.           //   return HTMLElement.prototype.appendChild.apply(this, arguments)
  2451.           // }
  2452.  
  2453.           // cnt.$.participants.insertBefore =cnt.$.participants.__shady_native_insertBefore =  function(){
  2454.           //   console.log(123, 'insertBefore');
  2455.           //   return HTMLElement.prototype.insertBefore.apply(this, arguments)
  2456.           // }
  2457.  
  2458.           cnt.__notifyPath5036__ = cnt.notifyPath
  2459.           const participants = ((cnt.participantsManager || 0).participants || 0);
  2460.           assertor(() => (participants.length > -1 && typeof participants.slice === 'function'));
  2461.           console.log(`initial number of participants: ${participants.length}`);
  2462.           const newParticipants = (participants.length >= 1 && typeof participants.slice === 'function') ? participants.slice(0) : [];
  2463.           beforeParticipantsMap.set(cnt, newParticipants);
  2464.           cnt.notifyPath = notifyPath7081;
  2465.           console.log(`CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT = ${CHECK_CHANGE_TO_PARTICIPANT_RENDERER_CONTENT}`);
  2466.           console.groupEnd();
  2467.         }
  2468.         cProto.attached = function () {
  2469.           fpPList(this.hostElement || this);
  2470.           this.__attached412__.apply(this, arguments);
  2471.         };
  2472.  
  2473.  
  2474.         if (ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST) {
  2475.  
  2476.           /** @type {boolean | (()=>boolean)} */
  2477.           let toUseMaintainStableList = USE_MAINTAIN_STABLE_LIST_ONLY_WHEN_KS_FLAG_IS_SET ? (() => ytcfg.data_.EXPERIMENT_FLAGS.kevlar_should_maintain_stable_list === true) : true;
  2478.           if (typeof cProto.stampDomArray_ === 'function' && cProto.stampDomArray_.length === 6 && !cProto.stampDomArray_.nIegT && !cProto.stampDomArray66_) {
  2479.  
  2480.             let lastMessageDate = 0;
  2481.             cProto.stampDomArray66_ = cProto.stampDomArray_;
  2482.  
  2483.             cProto.stampDomArray_ = function (...args) {
  2484.               if (args[0] && args[0].length > 0 && args[1] === "participants" && args[2] && args[3] === true && !args[5]) {
  2485.                 if (typeof toUseMaintainStableList === 'function') {
  2486.                   toUseMaintainStableList = toUseMaintainStableList();
  2487.                 }
  2488.                 args[5] = toUseMaintainStableList;
  2489.                 let currentDate = Date.now();
  2490.                 if (currentDate - lastMessageDate > 440) {
  2491.                   lastMessageDate = currentDate;
  2492.                   console.log('maintain_stable_list for participants list', toUseMaintainStableList);
  2493.                 }
  2494.               }
  2495.               return this.stampDomArray66_.apply(this, args);
  2496.             }
  2497.  
  2498.             cProto.stampDomArray_.nIegT = 1;
  2499.  
  2500.           }
  2501.           console.log(`ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST - YES`);
  2502.         } else {
  2503.           console.log(`ENABLE_FLAGS_MAINTAIN_STABLE_LIST_FOR_PARTICIPANTS_LIST - NO`);
  2504.         }
  2505.  
  2506.         console.groupEnd();
  2507.  
  2508.         if (onPageElements.length >= 1) {
  2509.           for (const s of onPageElements) {
  2510.             if (insp(s).isAttached === true) {
  2511.               fpPList(s);
  2512.             }
  2513.           }
  2514.         }
  2515.  
  2516.       }).catch(console.warn);
  2517.  
  2518.     };
  2519.  
  2520.     if (DO_PARTICIPANT_LIST_HACKS) {
  2521.       promiseForCustomYtElementsReady.then(onRegistryReadyForDataManipulation);
  2522.     }
  2523.  
  2524.  
  2525.  
  2526.     const rafHub = (ENABLE_RAF_HACK_TICKERS || ENABLE_RAF_HACK_DOCKED_MESSAGE || ENABLE_RAF_HACK_INPUT_RENDERER || ENABLE_RAF_HACK_EMOJI_PICKER) ? new RAFHub() : null;
  2527.  
  2528.  
  2529.     const fixChildrenIssue = !!fixChildrenIssue801;
  2530.     if (fixChildrenIssue && typeof Object.getOwnPropertyDescriptor === 'function' && typeof Proxy !== 'undefined') {
  2531.       const divProto = HTMLDivElement.prototype;
  2532.       const polymerControllerSetData3 = function (c, d, e) {
  2533.         return insp(this).set(c, d, e);
  2534.       }
  2535.       const polymerControllerSetData2 = function (c, d) {
  2536.         return insp(this).set(c, d);
  2537.       }
  2538.       const dummyFn = function () {
  2539.         console.log('dummyFn', ...arguments);
  2540.       };
  2541.  
  2542.       const wm44 = new Map();
  2543.       function unPolymerSet(elem) {
  2544.         const is = elem.is;
  2545.         if (is && !elem.set) {
  2546.           let rt = wm44.get(is);
  2547.           if (!rt) {
  2548.             rt = 1;
  2549.             const cnt = insp(elem);
  2550.             if (cnt !== elem && cnt && typeof cnt.set === 'function') {
  2551.               const pcSet = cnt.constructor.prototype.set;
  2552.               if (pcSet && typeof pcSet === 'function' && pcSet.length === 3) {
  2553.                 rt = polymerControllerSetData3;
  2554.               } else if (pcSet && typeof pcSet === 'function' && pcSet.length === 2) {
  2555.                 rt = polymerControllerSetData2;
  2556.               }
  2557.             }
  2558.             wm44.set(is, rt);
  2559.           }
  2560.           if (typeof rt === 'function') {
  2561.             elem.set = rt;
  2562.           } else {
  2563.             elem.set = dummyFn;
  2564.           }
  2565.         }
  2566.       }
  2567.       if (!divProto.__children577__ && !divProto.__children578__) {
  2568.  
  2569.         const dp = Object.getOwnPropertyDescriptor(Element.prototype, 'children');
  2570.         const dp2 = Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'children');
  2571.         const dp3 = Object.getOwnPropertyDescriptor(divProto, 'children');
  2572.  
  2573.         if (dp && dp.configurable === true && dp.enumerable === true && typeof dp.get === 'function' && !dp2 && !dp3) {
  2574.  
  2575.           if (divProto instanceof HTMLElement && divProto instanceof Element) {
  2576.  
  2577.             let m = Object.assign({}, dp);
  2578.             divProto.__children577__ = dp.get;
  2579.             divProto.__children578__ = function () {
  2580.               if (this.__children803__) return this.__children803__;
  2581.               if (this.__children801__) {
  2582.                 let arr = [];
  2583.                 for (let elem = this.firstElementChild; elem !== null; elem = elem.nextElementSibling) {
  2584.                   if (elem.is) {
  2585.                     unPolymerSet(elem);
  2586.                     arr.push(elem);
  2587.                   }
  2588.                 }
  2589.                 if (this.__children801__ === 2) this.__children803__ = arr;
  2590.                 return arr;
  2591.               }
  2592.               return 577;
  2593.             };
  2594.             m.get = function () {
  2595.               const r = this.__children578__();
  2596.               if (r !== 577) return r;
  2597.               return this.__children577__();
  2598.             };
  2599.             Object.defineProperty(divProto, 'children', m);
  2600.  
  2601.             console.log('fixChildrenIssue - set OK')
  2602.  
  2603.           }
  2604.         }
  2605.  
  2606.       }
  2607.  
  2608.  
  2609.     }
  2610.  
  2611.  
  2612.     const bnForDelayChatOccurrence = () => {
  2613.  
  2614.       document.addEventListener('animationstart', (evt) => {
  2615.  
  2616.         if (evt.animationName === 'dontRenderAnimation') {
  2617.           evt.target.classList.remove('dont-render');
  2618.           if (scrollChatFn) scrollChatFn();
  2619.         }
  2620.  
  2621.       }, true);
  2622.  
  2623.       const f = (elm) => {
  2624.         if (elm && elm.nodeType === 1) {
  2625.           if (!skipDontRender && allowDontRender === true) {
  2626.             // innerTextFixFn();
  2627.             elm.classList.add('dont-render');
  2628.           }
  2629.         }
  2630.       }
  2631.  
  2632.       Node.prototype.__appendChild931__ = function (a) {
  2633.         a = dr(a);
  2634.         if (this.id === 'items' && this.classList.contains('yt-live-chat-item-list-renderer')) {
  2635.           if (a && a.nodeType === 1) f(a);
  2636.           else if (a instanceof DocumentFragment) {
  2637.             for (let n = a.firstChild; n; n = n.nextSibling) {
  2638.               f(n);
  2639.             }
  2640.           }
  2641.         }
  2642.       }
  2643.  
  2644.       Node.prototype.__appendChild932__ = function () {
  2645.         this.__appendChild931__.apply(this, arguments);
  2646.         return Node.prototype.appendChild.apply(this, arguments);
  2647.       }
  2648.  
  2649.  
  2650.     };
  2651.  
  2652.     const watchUserCSS = () => {
  2653.  
  2654.       // if (!CSS.supports('contain-intrinsic-size', 'auto var(--wsr94)')) return;
  2655.  
  2656.       const getElemFromWR = (nr) => {
  2657.         const n = kRef(nr);
  2658.         if (n && n.isConnected) return n;
  2659.         return null;
  2660.       }
  2661.  
  2662.       const clearContentVisibilitySizing = () => {
  2663.         Promise.resolve().then(() => {
  2664.  
  2665.           const e = document.querySelector('#show-more[disabled]');
  2666.           let btnShowMoreWR = e ? mWeakRef(e) : null;
  2667.  
  2668.           let lastVisibleItemWR = null;
  2669.           for (const elm of document.querySelectorAll('[wSr93]')) {
  2670.             if (elm.getAttribute('wSr93') === 'visible') lastVisibleItemWR = mWeakRef(elm);
  2671.             elm.setAttribute('wSr93', '');
  2672.             // custom CSS property --wsr94 not working when attribute wSr93 removed
  2673.           }
  2674.           requestAnimationFrame(() => {
  2675.             const btnShowMore = getElemFromWR(btnShowMoreWR); btnShowMoreWR = null;
  2676.             if (btnShowMore) btnShowMore.click();
  2677.             else {
  2678.               // would not work if switch it frequently
  2679.               const lastVisibleItem = getElemFromWR(lastVisibleItemWR); lastVisibleItemWR = null;
  2680.               if (lastVisibleItem) {
  2681.  
  2682.                 Promise.resolve()
  2683.                   .then(() => lastVisibleItem.scrollIntoView())
  2684.                   .then(() => lastVisibleItem.scrollIntoView(false))
  2685.                   .then(() => lastVisibleItem.scrollIntoView({ behavior: "instant", block: "end", inline: "nearest" }))
  2686.                   .catch(e => { }) // break the chain when method not callable
  2687.  
  2688.               }
  2689.             }
  2690.           });
  2691.  
  2692.         });
  2693.  
  2694.       }
  2695.  
  2696.       const mutObserver = new MutationObserver((mutations) => {
  2697.         for (const mutation of mutations) {
  2698.           if ((mutation.addedNodes || 0).length >= 1) {
  2699.             for (const addedNode of mutation.addedNodes) {
  2700.               if (addedNode.nodeName === 'STYLE') {
  2701.                 clearContentVisibilitySizing();
  2702.                 return;
  2703.               }
  2704.             }
  2705.           }
  2706.           if ((mutation.removedNodes || 0).length >= 1) {
  2707.             for (const removedNode of mutation.removedNodes) {
  2708.               if (removedNode.nodeName === 'STYLE') {
  2709.                 clearContentVisibilitySizing();
  2710.                 return;
  2711.               }
  2712.             }
  2713.           }
  2714.         }
  2715.       });
  2716.  
  2717.       mutObserver.observe(document.documentElement, {
  2718.         childList: true,
  2719.         subtree: false
  2720.       });
  2721.       mutObserver.observe(document.head, {
  2722.         childList: true,
  2723.         subtree: false
  2724.       });
  2725.       mutObserver.observe(document.body, {
  2726.         childList: true,
  2727.         subtree: false
  2728.       });
  2729.  
  2730.     }
  2731.  
  2732.  
  2733.     class WillChangeController {
  2734.       constructor(itemScroller, willChangeValue) {
  2735.         this.element = itemScroller;
  2736.         this.counter = 0;
  2737.         this.active = false;
  2738.         this.willChangeValue = willChangeValue;
  2739.       }
  2740.  
  2741.       beforeOper() {
  2742.         if (!this.active) {
  2743.           this.active = true;
  2744.           this.element.style.willChange = this.willChangeValue;
  2745.         }
  2746.         this.counter++;
  2747.       }
  2748.  
  2749.       afterOper() {
  2750.         const c = this.counter;
  2751.         requestAnimationFrame(() => {
  2752.           if (c === this.counter) {
  2753.             this.active = false;
  2754.             this.element.style.willChange = '';
  2755.           }
  2756.         });
  2757.       }
  2758.  
  2759.       release() {
  2760.         const element = this.element;
  2761.         this.element = null;
  2762.         this.counter = 1e16;
  2763.         this.active = false;
  2764.         try {
  2765.           element.style.willChange = '';
  2766.         } catch (e) { }
  2767.       }
  2768.  
  2769.     }
  2770.  
  2771.  
  2772.     const skzData = (skz) => skz.data = {
  2773.       "message": {
  2774.         "runs": [
  2775.           {
  2776.             "text": "em2o"
  2777.           },
  2778.           {
  2779.             "emoji": {
  2780.               "emojiId": "cm35z",
  2781.               "shortcuts": [
  2782.                 ":_s:",
  2783.                 ":s:"
  2784.               ],
  2785.               "searchTerms": [
  2786.                 "_s",
  2787.                 "s"
  2788.               ],
  2789.               "image": {
  2790.                 "thumbnails": [
  2791.                   {
  2792.                     "url": dummyImgURL,
  2793.                     "width": 48,
  2794.                     "height": 48
  2795.                   }
  2796.                 ],
  2797.                 "accessibility": {
  2798.                   "accessibilityData": {
  2799.                     "label": "s"
  2800.                   }
  2801.                 }
  2802.               },
  2803.               "isCustomEmoji": true
  2804.             }
  2805.           },
  2806.           {
  2807.             "text": "ji"
  2808.           }
  2809.         ]
  2810.       },
  2811.       "authorName": {
  2812.         "simpleText": "N"
  2813.       },
  2814.       "authorPhoto": {
  2815.         "thumbnails": [
  2816.           {
  2817.             "url": dummyImgURL,
  2818.             "width": 64,
  2819.             "height": 64
  2820.           }
  2821.         ]
  2822.       },
  2823.       "contextMenuEndpoint": {
  2824.         "commandMetadata": {
  2825.           "webCommandMetadata": {
  2826.             "ignoreNavigation": true
  2827.           }
  2828.         },
  2829.         "liveChatItemContextMenuEndpoint": {
  2830.           "params": "123=="
  2831.         }
  2832.       },
  2833.       "id": "sk35z",
  2834.       "timestampUsec": "1232302352350000",
  2835.       "authorBadges": [
  2836.         {
  2837.           "liveChatAuthorBadgeRenderer": {
  2838.             "customThumbnail": {
  2839.               "thumbnails": [
  2840.                 {
  2841.                   "url": dummyImgURL,
  2842.                   "width": 16,
  2843.                   "height": 16
  2844.                 },
  2845.                 {
  2846.                   "url": dummyImgURL,
  2847.                   "width": 32,
  2848.                   "height": 32
  2849.                 }
  2850.               ]
  2851.             },
  2852.             "tooltip": "T",
  2853.             "accessibility": {
  2854.               "accessibilityData": {
  2855.                 "label": "E"
  2856.               }
  2857.             }
  2858.           }
  2859.         }
  2860.       ],
  2861.       "authorExternalChannelId": "A",
  2862.       "contextMenuAccessibility": {
  2863.         "accessibilityData": {
  2864.           "label": "E"
  2865.         }
  2866.       },
  2867.       "timestampText": {
  2868.         "simpleText": "0:43"
  2869.       }
  2870.     };
  2871.  
  2872.  
  2873.  
  2874.     const { lcRendererElm, visObserver } = (() => {
  2875.  
  2876.  
  2877.  
  2878.       let lcRendererWR = null;
  2879.  
  2880.       const lcRendererElm = () => {
  2881.         let lcRenderer = kRef(lcRendererWR);
  2882.         if (!lcRenderer || !lcRenderer.isConnected) {
  2883.           lcRenderer = document.querySelector('yt-live-chat-item-list-renderer.yt-live-chat-renderer');
  2884.           lcRendererWR = lcRenderer ? mWeakRef(lcRenderer) : null;
  2885.         }
  2886.         return lcRenderer;
  2887.       };
  2888.  
  2889.  
  2890.       let hasFirstShowMore = false;
  2891.  
  2892.       const visObserverFn = (entry) => {
  2893.  
  2894.         const target = entry.target;
  2895.         if (!target) return;
  2896.         // if(target.classList.contains('dont-render')) return;
  2897.         let isVisible = entry.isIntersecting === true && entry.intersectionRatio > 0.5;
  2898.         // const h = entry.boundingClientRect.height;
  2899.         /*
  2900.         if (h < 16) { // wrong: 8 (padding/margin); standard: 32; test: 16 or 20
  2901.             // e.g. under fullscreen. the element created but not rendered.
  2902.             target.setAttribute('wSr93', '');
  2903.             return;
  2904.         }
  2905.         */
  2906.         if (isVisible) {
  2907.           // target.style.setProperty('--wsr94', h + 'px');
  2908.           target.setAttribute('wSr93', 'visible');
  2909.           if (nNextElem(target) === null) {
  2910.  
  2911.             // firstVisibleItemDetected = true;
  2912.             /*
  2913.               if (dateNow() - lastScroll < 80) {
  2914.                   lastLShow = 0;
  2915.                   lastScroll = 0;
  2916.                   Promise.resolve().then(clickShowMore);
  2917.               } else {
  2918.                   lastLShow = dateNow();
  2919.               }
  2920.               */
  2921.             // lastLShow = dateNow();
  2922.           } else if (!hasFirstShowMore) { // should more than one item being visible
  2923.             // implement inside visObserver to ensure there is sufficient delay
  2924.             hasFirstShowMore = true;
  2925.             requestAnimationFrame(() => {
  2926.               // foreground page
  2927.               // page visibly ready -> load the latest comments at initial loading
  2928.               const lcRenderer = lcRendererElm();
  2929.               if (lcRenderer) {
  2930.                 if (typeof window.nextBrowserTick !== 'function') {
  2931.                   insp(lcRenderer).scrollToBottom_();
  2932.                 } else {
  2933.                   nextBrowserTick(() => {
  2934.                     const cnt = insp(lcRenderer);
  2935.                     if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  2936.                     cnt.scrollToBottom_();
  2937.                   });
  2938.                 }
  2939.               }
  2940.             });
  2941.           }
  2942.         }
  2943.         else if (target.getAttribute('wSr93') === 'visible') { // ignore target.getAttribute('wSr93') === '' to avoid wrong sizing
  2944.  
  2945.           // target.style.setProperty('--wsr94', h + 'px');
  2946.           target.setAttribute('wSr93', 'hidden');
  2947.         } // note: might consider 0 < entry.intersectionRatio < 0.5 and target.getAttribute('wSr93') === '' <new last item>
  2948.  
  2949.       }
  2950.  
  2951.  
  2952.  
  2953.       const visObserver = new IntersectionObserver((entries) => {
  2954.  
  2955.         for (const entry of entries) {
  2956.  
  2957.           Promise.resolve(entry).then(visObserverFn);
  2958.  
  2959.         }
  2960.  
  2961.       }, {
  2962.         // root: HTMLElement.prototype.closest.call(m2, '#item-scroller.yt-live-chat-item-list-renderer'), // nullable
  2963.         rootMargin: "0px",
  2964.         threshold: [0.05, 0.95],
  2965.       });
  2966.  
  2967.  
  2968.       return { lcRendererElm, visObserver }
  2969.  
  2970.  
  2971.     })();
  2972.  
  2973.     const { setupMutObserver } = (() => {
  2974.  
  2975.       async function asyncTickerBackgroundOverridedChecker() {
  2976.  
  2977.         try {
  2978.           await promiseForCustomYtElementsReady.then();
  2979.           await customElements.whenDefined('yt-live-chat-text-message-renderer');
  2980.           await new Promise(r => setTimeout(r, 800));
  2981.  
  2982.           if (!hasTimerModified) return;
  2983.           const tickerRenderer = document.querySelector('#ticker yt-live-chat-ticker-renderer.style-scope.yt-live-chat-renderer');
  2984.           if (!tickerRenderer) return;
  2985.  
  2986.           const tickerRendererDollar = indr(tickerRenderer);
  2987.           const items = (tickerRendererDollar || 0).items || 0;
  2988.           if (!items) return;
  2989.           const template = document.createElement('template');
  2990.           template.innerHTML = `<yt-live-chat-ticker-dummy777-item-renderer class="style-scope yt-live-chat-ticker-renderer" whole-message-clickable=""
  2991.             modern="" aria-label="¥1,000" role="button" tabindex="0" id="Chw777" style="width: 94px; overflow: hidden;"
  2992.             dimmed="" [dummy777]>
  2993.             <div id="container" dir="ltr" class="style-scope yt-live-chat-ticker-dummy777-item-renderer"
  2994.               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));">
  2995.               <div id="content" class="style-scope yt-live-chat-ticker-dummy777-item-renderer" style="color: rgb(255, 255, 255);">
  2996.                 <yt-img-shadow777 id="author-photo" height="24" width="24"
  2997.                   class="style-scope yt-live-chat-ticker-dummy777-item-renderer no-transition"
  2998.                   style="background-color: transparent;" loaded=""><img id="img"
  2999.                     draggable="false" class="style-scope yt-img-shadow" alt="I" height="24" width="24"
  3000.                     src="${dummyImgURL}"></yt-img-shadow777>
  3001.  
  3002.                 <span id="text" dir="ltr" class="style-scope yt-live-chat-ticker-dummy777-item-renderer">¥1,000</span>
  3003.               </div>
  3004.             </div>
  3005.           </yt-live-chat-ticker-dummy777-item-renderer>`;
  3006.           const dummy777 = template.content.firstElementChild;
  3007.           await Promise.resolve().then();
  3008.           let res = 0;
  3009.           if (items instanceof HTMLElement && items.isConnected === true) {
  3010.             try {
  3011.               items.appendChild(dummy777);
  3012.               let container = HTMLElement.prototype.querySelector.call(dummy777, '#container') || 0;
  3013.               if (container.isConnected === true) {
  3014.                 const evaluated = `${getComputedStyleCached(container).background}`;
  3015.                 container = null;
  3016.                 res = evaluated.indexOf('0.') < 4 ? 1 : 2;
  3017.               }
  3018.             } catch (e) { console.warn(e) }
  3019.             HTMLElement.prototype.remove.call(dummy777);
  3020.           }
  3021.           await Promise.resolve().then();
  3022.           dummy777.textContent = '';
  3023.           if (res === 1) {
  3024.             // not fulfilling
  3025.             // rgba(0, 0, 0, 0.004) none repeat scroll 0% 0% / auto padding-box border-box
  3026.             console.groupCollapsed(`%c${"YouTube Super Fast Chat"}%c${" | Incompatibility Found"}`,
  3027.               "background-color: #010502; color: #fe806a; font-weight: 700; padding: 2px;",
  3028.               "background-color: #010502; color: #fe806a; font-weight: 300; padding: 2px;"
  3029.             );
  3030.             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');
  3031.             console.groupEnd();
  3032.             console.log('%cALLOW_ADVANCED_ANIMATED_TICKER_BACKGROUND (Overriding other scripting)', 'background-color: #7eb32b; color: #102624; padding: 2px 4px');
  3033.           } else if (res === 2) {
  3034.             console.log('%cALLOW_ADVANCED_ANIMATED_TICKER_BACKGROUND', 'background-color: #16c450; color: #102624; padding: 2px 4px');
  3035.           }
  3036.         } catch (e) {
  3037.           console.warn(e);
  3038.         }
  3039.       }
  3040.  
  3041.       async function asyncDelayChatOccurrence(m2) {
  3042.         try {
  3043.           await promiseForCustomYtElementsReady.then();
  3044.           await customElements.whenDefined('yt-live-chat-text-message-renderer');
  3045.           await new Promise(r => setTimeout(r, 1));
  3046.           const dummy888 = document.createElement('yt-live-chat-text-message-renderer');
  3047.           // const template = document.createElement('template');
  3048.           // template.innerHTML = "<yt-live-chat-text-message-renderer></yt-live-chat-text-message-renderer>"
  3049.           // const dummy888 = template.content.firstElementChild;
  3050.           const skzCnt = insp(dummy888);
  3051.           if (!(skzCnt && 'data' in skzCnt && 'attached' in skzCnt)) {
  3052.             return;
  3053.           }
  3054.           if (!skzCnt.hostElement) skzCnt.hostElement = dummy888;
  3055.           /** @type {HTMLTemplateElement} */
  3056.           const skzElem = dummy888;
  3057.           let cz1 = null;
  3058.           const deferredZy1 = new Promise(resolve => {
  3059.             skzCnt.attached = function () {
  3060.               cz1 = HTMLElement.prototype.querySelector.call(skzElem, '#message img') !== null;
  3061.               resolve(skzElem.textContent);
  3062.             }
  3063.             skzCnt.detached = function () {
  3064.             }
  3065.           });
  3066.           skzElem.id = 'sk35z';
  3067.           skzData(skzCnt);
  3068.           sk35zResolveFn = null;
  3069.           const deferredMutation = new Promise(resolve => {
  3070.             sk35zResolveFn = resolve;
  3071.             HTMLElement.prototype.appendChild.call(m2, skzElem);
  3072.           });
  3073.           const [zy1, _] = await Promise.all([deferredZy1, deferredMutation]);
  3074.           skzCnt.attached = function () { };
  3075.           function fn() {
  3076.             const zy2 = skzElem.textContent;
  3077.             const cz2 = HTMLElement.prototype.querySelector.call(skzElem, '#message img') !== null;
  3078.             if (typeof zy1 === 'string' && typeof zy2 === 'string') {
  3079.               allowDontRender = zy1 === zy2 && cz1 === cz2; // '0:43N​em2oji'
  3080.             }
  3081.             if (allowDontRender === true) return true;
  3082.             if (allowDontRender === false) {
  3083.               console.groupCollapsed(`%c${"YouTube Super Fast Chat"}%c${" | Incompatibility Found"}`,
  3084.                 "background-color: #010502; color: #fe806a; font-weight: 700; padding: 2px;",
  3085.                 "background-color: #010502; color: #fe806a; font-weight: 300; padding: 2px;"
  3086.               );
  3087.               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');
  3088.               console.groupEnd();
  3089.             }
  3090.           }
  3091.           await new Promise(r => setTimeout(r, 1));
  3092.           if (!fn()) return;
  3093.           await new Promise(r => requestAnimationFrame(r));
  3094.           if (!fn()) return;
  3095.           skzElem.remove();
  3096.           await Promise.resolve().then();
  3097.           skzElem.textContent = '';
  3098.           console.log('%cALLOW_DELAYED_CHAT_OCCURRENCE', 'background-color: #16c450; color: #102624; padding: 2px 4px');
  3099.         } catch (e) {
  3100.           console.warn(e);
  3101.         }
  3102.       }
  3103.  
  3104.       const mutFn = (items) => {
  3105.         let seqIndex = -1;
  3106.         const elementSet = new Set();
  3107.         for (let node = nLastElem(items); node !== null; node = nPrevElem(node)) {
  3108.           if (node.hasAttribute('wSr93')) {
  3109.             seqIndex = parseInt(node.getAttribute('yt-chat-item-seq'));
  3110.             break;
  3111.           }
  3112.           node.setAttribute('wSr93', '');
  3113.           visObserver.observe(node);
  3114.           elementSet.add(node);
  3115.         }
  3116.         let iter = elementSet.values();
  3117.         let i = seqIndex + elementSet.size;
  3118.         for (let curr; curr = iter.next().value;) {
  3119.           curr.setAttribute('yt-chat-item-seq', i % 60);
  3120.           curr.classList.add('yt-chat-item-' + ((i % 2) ? 'odd' : 'even'));
  3121.           i--;
  3122.         }
  3123.         iter = null;
  3124.         elementSet.clear();
  3125.       }
  3126.  
  3127.       const mutObserver = new MutationObserver((mutations) => {
  3128.         const items = (mutations[0] || 0).target;
  3129.         if (!items) return;
  3130.         if (sk35zResolveFn) {
  3131.           sk35zResolveFn();
  3132.           sk35zResolveFn = null;
  3133.         }
  3134.         mutFn(items);
  3135.       });
  3136.  
  3137.       const setupMutObserver = (m2) => {
  3138.         scrollChatFn = null;
  3139.         mutObserver.disconnect();
  3140.         mutObserver.takeRecords();
  3141.         if (m2) {
  3142.           ENABLE_DELAYED_CHAT_OCCURRENCE && bnForDelayChatOccurrence();
  3143.           if (typeof m2.__appendChild932__ === 'function') {
  3144.             if (typeof m2.appendChild === 'function') m2.appendChild = m2.__appendChild932__;
  3145.             if (typeof m2.__shady_native_appendChild === 'function') m2.__shady_native_appendChild = m2.__appendChild932__;
  3146.           }
  3147.           mutObserver.observe(m2, {
  3148.             childList: true,
  3149.             subtree: false
  3150.           });
  3151.           mutFn(m2);
  3152.  
  3153.           const isFirstList = firstList;
  3154.           firstList = false;
  3155.  
  3156.           if (ENABLE_OVERFLOW_ANCHOR) {
  3157.  
  3158.             let items = m2;
  3159.             let addedAnchor = false;
  3160.             if (items) {
  3161.               if (items.nextElementSibling === null) {
  3162.                 items.classList.add('no-anchor');
  3163.                 addedAnchor = true;
  3164.                 items.parentNode.appendChild(dr(document.createElement('item-anchor')));
  3165.               }
  3166.             }
  3167.  
  3168.  
  3169.  
  3170.             if (addedAnchor) {
  3171.               nodeParent(m2).classList.add('no-anchor'); // required
  3172.             }
  3173.  
  3174.           }
  3175.  
  3176.           // let div = document.createElement('div');
  3177.           // div.id = 'qwcc';
  3178.           // HTMLElement.prototype.appendChild.call(document.querySelector('yt-live-chat-item-list-renderer'), div )
  3179.           // bufferRegion =div;
  3180.  
  3181.           // buffObserver.takeRecords();
  3182.           // buffObserver.disconnect();
  3183.           // buffObserver.observe(div,  {
  3184.           //     childList: true,
  3185.           //     subtree: false
  3186.           // })
  3187.  
  3188.           if (ENABLE_DELAYED_CHAT_OCCURRENCE && isFirstList) {
  3189.             asyncDelayChatOccurrence(m2);
  3190.           }
  3191.  
  3192.  
  3193.           if (ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX) {
  3194.  
  3195.             (() => {
  3196.  
  3197.               const tag = 'yt-iframed-player-events-relay'
  3198.               const dummy = document.createElement(tag);
  3199.  
  3200.               const cProto = getProto(dummy);
  3201.               if (!cProto || !cProto.handlePostMessage_) {
  3202.                 console.warn(`proto.handlePostMessage_ for ${tag} is unavailable.`);
  3203.                 return;
  3204.               }
  3205.  
  3206.               if (typeof cProto.handlePostMessage_ === 'function' && !cProto.handlePostMessage66_) {
  3207.  
  3208.                 cProto.handlePostMessage66_ = cProto.handlePostMessage_;
  3209.  
  3210.                 cProto.handlePostMessage67_ = function (a) {
  3211.  
  3212.                   const da = a.data;
  3213.  
  3214.  
  3215.  
  3216.                   playEventsStack = playEventsStack.then(() => {
  3217.  
  3218.  
  3219.  
  3220.                     if ('yt-player-state-change' in da) {
  3221.  
  3222.                       const qc = da['yt-player-state-change'];
  3223.  
  3224.  
  3225.                       let isQcChanged = false;
  3226.  
  3227.                       if (qc === 2) { isQcChanged = qc !== _playerState; _playerState = 2; relayCount = 0; } // paused
  3228.                       else if (qc === 3) { isQcChanged = qc !== _playerState; _playerState = 3; } // playing
  3229.                       else if (qc === 1) { isQcChanged = qc !== _playerState; _playerState = 1; } // playing
  3230.  
  3231.  
  3232.                       if ((isQcChanged) && playerState !== _playerState) {
  3233.                         playerEventsByIframeRelay = true;
  3234.                         onPlayStateChangePromise = new Promise((resolve) => {
  3235.                           let k = _playerState;
  3236.                           foregroundPromiseFn().then(() => {
  3237.                             if (k === _playerState && playerState !== _playerState) playerState = _playerState;
  3238.                             onPlayStateChangePromise = null;
  3239.                             resolve();
  3240.                           })
  3241.                         }).catch(console.warn);
  3242.  
  3243.                       }
  3244.  
  3245.                     } else if ('yt-player-video-progress' in da) {
  3246.                       const vp = da['yt-player-video-progress'];
  3247.  
  3248.  
  3249.                       relayCount++;
  3250.                       lastPlayerProgress = vp > 0 ? vp : 0;
  3251.  
  3252.  
  3253.                       if (relayPromise && vp > 0 && relayCount >= 2) {
  3254.                         if (onPlayStateChangePromise) {
  3255.                           onPlayStateChangePromise.then(() => {
  3256.                             relayPromise && relayPromise.resolve();
  3257.                             relayPromise = null;
  3258.                           })
  3259.                         } else {
  3260.                           relayPromise.resolve();
  3261.                           relayPromise = null;
  3262.                         }
  3263.                       }
  3264.  
  3265.  
  3266.  
  3267.                     }
  3268.  
  3269.  
  3270.  
  3271.  
  3272.  
  3273.  
  3274.                     return this.handlePostMessage66_(a);
  3275.  
  3276.  
  3277.  
  3278.                   }).catch(console.warn);
  3279.  
  3280.                 }
  3281.  
  3282.  
  3283.                 cProto.handlePostMessage_ = function (a) {
  3284.  
  3285.  
  3286.                   const da = (a || 0).data || 0;
  3287.  
  3288.                   if (typeof da !== 'object') return;
  3289.  
  3290.                   if (waitForInitialDataCompletion === 1) return;
  3291.  
  3292.                   if (!isPlayProgressTriggered) {
  3293.                     isPlayProgressTriggered = true;
  3294.  
  3295.                     if ('yt-player-video-progress' in da) {
  3296.                       waitForInitialDataCompletion = 1;
  3297.  
  3298.                       const wrapWith = (data) => {
  3299.                         const { origin } = a;
  3300.                         return {
  3301.                           origin,
  3302.                           data
  3303.                         };
  3304.                       }
  3305.  
  3306.                       this.handlePostMessage67_(wrapWith({
  3307.                         "yt-iframed-parent-ready": true
  3308.                       }));
  3309.  
  3310.  
  3311.  
  3312.                       playEventsStack = playEventsStack.then(() => {
  3313.  
  3314.  
  3315.  
  3316.                         const lcr = document.querySelector('yt-live-chat-renderer');
  3317.                         const psc = document.querySelector("yt-player-seek-continuation");
  3318.                         if (lcr && psc && lcr.replayBuffer_) {
  3319.  
  3320.  
  3321.                           const rbProgress = lcr.replayBuffer_.lastVideoOffsetTimeMsec;
  3322.                           const daProgress = da['yt-player-video-progress'] * 1000
  3323.                           // document.querySelector('yt-live-chat-renderer').playerProgressChanged_(1e-5);
  3324.  
  3325.  
  3326.                           const front_ = (lcr.replayBuffer_.replayQueue || 0).front_;
  3327.                           const back_ = (lcr.replayBuffer_.replayQueue || 0).back_;
  3328.  
  3329.  
  3330.                           // console.log(deepCopy( front_))
  3331.                           // console.log(deepCopy( back_))
  3332.                           // console.log(rbProgress, daProgress, )
  3333.                           if (front_ && back_ && rbProgress > daProgress && back_.length > 2 && back_.some(e => e && +e.videoOffsetTimeMsec > daProgress) && back_.some(e => e && +e.videoOffsetTimeMsec < daProgress)) {
  3334.                             // no action
  3335.                             // console.log('ss1')
  3336.                           } else if (rbProgress < daProgress + 3400 && rbProgress > daProgress - 1200) {
  3337.                             //  daProgress - 1200 < rbProgress < daProgress + 3400
  3338.                             // console.log('ss2')
  3339.                           } else {
  3340.  
  3341.                             // console.log('ss3')
  3342.                             // lcr.replayBuffer_.replayQueue.back_.length= 0;
  3343.                             // lcr.replayBuffer_.replayQueue.front_.length= 0;
  3344.  
  3345.                             // lcr
  3346.                             lcr.previousProgressSec = 1E-5;
  3347.                             // lcr._setIsSeeking(!0),
  3348.                             lcr.replayBuffer_.clear()
  3349.                             psc.fireSeekContinuation_(da['yt-player-video-progress']);
  3350.                           }
  3351.  
  3352.                         }
  3353.  
  3354.  
  3355.                         waitForInitialDataCompletion = 2;
  3356.  
  3357.                         this.handlePostMessage_(a);
  3358.  
  3359.  
  3360.                       }).catch(console.warn);
  3361.  
  3362.  
  3363.  
  3364.                       return;
  3365.  
  3366.                     }
  3367.  
  3368.                   }
  3369.  
  3370.  
  3371.  
  3372.                   this.handlePostMessage67_(a);
  3373.  
  3374.  
  3375.  
  3376.                 }
  3377.  
  3378.               }
  3379.  
  3380.  
  3381.             })();
  3382.  
  3383.           }
  3384.  
  3385.           if (isFirstList && DO_CHECK_TICKER_BACKGROUND_OVERRIDED) {
  3386.             asyncTickerBackgroundOverridedChecker();
  3387.           }
  3388.  
  3389.         }
  3390.       }
  3391.  
  3392.       return { setupMutObserver };
  3393.  
  3394.  
  3395.  
  3396.     })();
  3397.  
  3398.     const setupEvents = () => {
  3399.  
  3400.  
  3401.       let scrollCount = 0;
  3402.  
  3403.       const passiveCapture = typeof IntersectionObserver === 'function' ? { capture: true, passive: true } : true;
  3404.  
  3405.  
  3406.       const delayFlushActiveItemsAfterUserActionK_ = () => {
  3407.  
  3408.         const lcRenderer = lcRendererElm();
  3409.         if (lcRenderer) {
  3410.           const cnt = insp(lcRenderer);
  3411.           if (!cnt.hasUserJustInteracted11_) return;
  3412.           if (cnt.atBottom && cnt.allowScroll && cnt.activeItems_.length >= 1 && cnt.hasUserJustInteracted11_()) {
  3413.             cnt.delayFlushActiveItemsAfterUserAction11_ && cnt.delayFlushActiveItemsAfterUserAction11_();
  3414.           }
  3415.         }
  3416.  
  3417.       }
  3418.  
  3419.       document.addEventListener('scroll', (evt) => {
  3420.         if (!evt || !evt.isTrusted) return;
  3421.         // lastScroll = dateNow();
  3422.         if (++scrollCount > 1e9) scrollCount = 9;
  3423.       }, passiveCapture); // support contain => support passive
  3424.  
  3425.       let lastScrollCount = -1;
  3426.       document.addEventListener('wheel', (evt) => {
  3427.         if (!evt || !evt.isTrusted) return;
  3428.         if (lastScrollCount === scrollCount) return;
  3429.         lastScrollCount = scrollCount;
  3430.         lastWheel = dateNow();
  3431.         delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3432.       }, passiveCapture); // support contain => support passive
  3433.  
  3434.       document.addEventListener('mousedown', (evt) => {
  3435.         if (!evt || !evt.isTrusted) return;
  3436.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3437.         lastMouseDown = dateNow();
  3438.         currentMouseDown = true;
  3439.         lastUserInteraction = lastMouseDown;
  3440.       }, passiveCapture);
  3441.  
  3442.       document.addEventListener('pointerdown', (evt) => {
  3443.         if (!evt || !evt.isTrusted) return;
  3444.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3445.         lastMouseDown = dateNow();
  3446.         currentMouseDown = true;
  3447.         lastUserInteraction = lastMouseDown;
  3448.       }, passiveCapture);
  3449.  
  3450.       document.addEventListener('click', (evt) => {
  3451.         if (!evt || !evt.isTrusted) return;
  3452.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3453.         lastMouseDown = lastMouseUp = dateNow();
  3454.         currentMouseDown = false;
  3455.         lastUserInteraction = lastMouseDown;
  3456.         delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3457.       }, passiveCapture);
  3458.  
  3459.       document.addEventListener('tap', (evt) => {
  3460.         if (!evt || !evt.isTrusted) return;
  3461.         if (((evt || 0).target || 0).id !== 'item-scroller') return;
  3462.         lastMouseDown = lastMouseUp = dateNow();
  3463.         currentMouseDown = false;
  3464.         lastUserInteraction = lastMouseDown;
  3465.         delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3466.       }, passiveCapture);
  3467.  
  3468.  
  3469.       document.addEventListener('mouseup', (evt) => {
  3470.         if (!evt || !evt.isTrusted) return;
  3471.         if (currentMouseDown) {
  3472.           lastMouseUp = dateNow();
  3473.           currentMouseDown = false;
  3474.           lastUserInteraction = lastMouseUp;
  3475.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3476.         }
  3477.       }, passiveCapture);
  3478.  
  3479.  
  3480.       document.addEventListener('pointerup', (evt) => {
  3481.         if (!evt || !evt.isTrusted) return;
  3482.         if (currentMouseDown) {
  3483.           lastMouseUp = dateNow();
  3484.           currentMouseDown = false;
  3485.           lastUserInteraction = lastMouseUp;
  3486.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3487.         }
  3488.       }, passiveCapture);
  3489.  
  3490.       document.addEventListener('touchstart', (evt) => {
  3491.         if (!evt || !evt.isTrusted) return;
  3492.         lastTouchDown = dateNow();
  3493.         currentTouchDown = true;
  3494.         lastUserInteraction = lastTouchDown;
  3495.       }, passiveCapture);
  3496.  
  3497.       document.addEventListener('touchmove', (evt) => {
  3498.         if (!evt || !evt.isTrusted) return;
  3499.         lastTouchDown = dateNow();
  3500.         currentTouchDown = true;
  3501.         lastUserInteraction = lastTouchDown;
  3502.       }, passiveCapture);
  3503.  
  3504.       document.addEventListener('touchend', (evt) => {
  3505.         if (!evt || !evt.isTrusted) return;
  3506.         if (currentTouchDown) {
  3507.           lastTouchUp = dateNow();
  3508.           currentTouchDown = false;
  3509.           lastUserInteraction = lastTouchUp;
  3510.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3511.         }
  3512.       }, passiveCapture);
  3513.  
  3514.       document.addEventListener('touchcancel', (evt) => {
  3515.         if (!evt || !evt.isTrusted) return;
  3516.         if (currentTouchDown) {
  3517.           lastTouchUp = dateNow();
  3518.           currentTouchDown = false;
  3519.           lastUserInteraction = lastTouchUp;
  3520.           delayFlushActiveItemsAfterUserActionK_ && delayFlushActiveItemsAfterUserActionK_();
  3521.         }
  3522.       }, passiveCapture);
  3523.  
  3524.  
  3525.     }
  3526.  
  3527.     const getTimestampUsec = (itemRenderer) => {
  3528.       if (itemRenderer && 'timestampUsec' in itemRenderer) {
  3529.         return itemRenderer.timestampUsec
  3530.       } else if (itemRenderer && itemRenderer.showItemEndpoint) {
  3531.         const messageRenderer = ((itemRenderer.showItemEndpoint.showLiveChatItemEndpoint || 0).renderer || 0);
  3532.         if (messageRenderer) {
  3533.  
  3534.           const messageRendererKey = firstObjectKey(messageRenderer);
  3535.           if (messageRendererKey && messageRenderer[messageRendererKey]) {
  3536.             const messageRendererData = messageRenderer[messageRendererKey];
  3537.             if (messageRendererData && 'timestampUsec' in messageRendererData) {
  3538.               return messageRendererData.timestampUsec
  3539.             }
  3540.           }
  3541.         }
  3542.       }
  3543.       return null;
  3544.     }
  3545.  
  3546.     const onRegistryReadyForDOMOperations = () => {
  3547.  
  3548.       let firstCheckedOnYtInit = false;
  3549.  
  3550.       const assertorURL = () => assertor(() => location.pathname.startsWith('/live_chat') && (location.search.indexOf('continuation=') > 0 || location.search.indexOf('v=') > 0));
  3551.  
  3552.       const mightFirstCheckOnYtInit = () => {
  3553.         if (firstCheckedOnYtInit) return;
  3554.         firstCheckedOnYtInit = true;
  3555.  
  3556.         if (!document.body || !document.head) return;
  3557.         if (!assertorURL()) return;
  3558.  
  3559.         addCssManaged();
  3560.  
  3561.         let efsContainer = document.getElementById('elzm-fonts-yk75g');
  3562.         if (efsContainer && efsContainer.parentNode !== document.body) {
  3563.           document.body.appendChild(efsContainer);
  3564.         }
  3565.  
  3566.       };
  3567.  
  3568.       if (!assertorURL()) return;
  3569.       // if (!assertor(() => document.getElementById('yt-masthead') === null)) return;
  3570.  
  3571.       if (document.documentElement && document.head) {
  3572.         addCssManaged();
  3573.       }
  3574.       // console.log(document.body===null)
  3575.  
  3576.       if (ATTEMPT_TICKER_ANIMATION_START_TIME_DETECTION) {
  3577.         getLCRDummy().then(async (lcrDummy) => {
  3578.  
  3579.           const tag = "yt-live-chat-renderer"
  3580.           const dummy = lcrDummy;
  3581.  
  3582.           const cProto = getProto(dummy);
  3583.           if (!cProto || !cProto.attached) {
  3584.             console.warn(`proto.attached for ${tag} is unavailable.`);
  3585.             return;
  3586.           }
  3587.  
  3588.           mightFirstCheckOnYtInit();
  3589.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-renderer hacks");
  3590.           console.log("[Begin]");
  3591.  
  3592.  
  3593.  
  3594.  
  3595.  
  3596.  
  3597.           if (typeof cProto.playerProgressChanged_ === 'function' && !cProto.playerProgressChanged32_) {
  3598.  
  3599.             cProto.playerProgressChanged32_ = cProto.playerProgressChanged_;
  3600.  
  3601.             const pop078 = function () {
  3602.               const r = this.pop78();
  3603.  
  3604.               if (r && (r.actions || 0).length >= 1 && r.videoOffsetTimeMsec) {
  3605.                 for (const action of r.actions) {
  3606.  
  3607.                   const itemActionKey = !action ? null : 'addChatItemAction' in action ? 'addChatItemAction' : 'addLiveChatTickerItemAction' in action ? 'addLiveChatTickerItemAction' : null;
  3608.                   if (itemActionKey) {
  3609.  
  3610.                     const itemAction = action[itemActionKey];
  3611.                     const item = (itemAction || 0).item;
  3612.                     if (typeof item === 'object') {
  3613.  
  3614.                       const rendererKey = firstObjectKey(item);
  3615.                       if (rendererKey) {
  3616.                         const renderer = item[rendererKey];
  3617.                         if (renderer && typeof renderer === 'object') {
  3618.                           renderer.__videoOffsetTimeMsec__ = r.videoOffsetTimeMsec;
  3619.                           renderer.__progressAt__ = playerProgressChangedArg1;
  3620.                         }
  3621.  
  3622.                       }
  3623.  
  3624.                     }
  3625.                   }
  3626.                 }
  3627.               }
  3628.               return r;
  3629.             }
  3630.  
  3631.             cProto.playerProgressChanged_ = function (a, b, c) {
  3632.               playerProgressChangedArg1 = a;
  3633.               playerProgressChangedArg2 = b;
  3634.               playerProgressChangedArg3 = c;
  3635.               const replayBuffer_ = this.replayBuffer_;
  3636.               if (replayBuffer_) {
  3637.                 const replayQueue = replayBuffer_.replayQueue
  3638.                 if (replayQueue && typeof replayQueue === 'object' && !replayQueue.qe3) {
  3639.  
  3640.                   replayBuffer_.replayQueue = new Proxy(replayBuffer_.replayQueue, {
  3641.                     get(target, prop, receiver) {
  3642.                       if (prop === 'qe3') return 1;
  3643.                       const v = target[prop];
  3644.                       if (prop === 'front_') {
  3645.                         if (v && typeof v.length === 'number') {
  3646.                           if (!v.pop78) {
  3647.                             v.pop78 = v.pop;
  3648.                             v.pop = pop078;
  3649.                           }
  3650.                         }
  3651.                       }
  3652.                       return v;
  3653.                     }
  3654.                   });
  3655.  
  3656.                 }
  3657.               }
  3658.               return this.playerProgressChanged32_.apply(this, arguments);
  3659.             };
  3660.  
  3661.           }
  3662.  
  3663.           // if (typeof cProto.immediatelyApplyLiveChatActions === 'function' && !cProto.immediatelyApplyLiveChatActions32) {
  3664.  
  3665.           //   cProto.immediatelyApplyLiveChatActions32 = cProto.immediatelyApplyLiveChatActions;
  3666.  
  3667.           //   cProto.immediatelyApplyLiveChatActions = function (a) {
  3668.           //     // if (a.length > 8) {
  3669.           //     //   console.log(a)
  3670.           //     // }
  3671.           //     // console.log(a)
  3672.           //     /*
  3673.           //     let arr=a.slice();
  3674.  
  3675.           //     if(arr.length >= 2){
  3676.           //       arr.sort((a, b)=>{
  3677.           //         let ak = firstObjectKey(a);
  3678.           //         let bk = firstObjectKey(b);
  3679.           //         if(!ak||!bk) return 0;
  3680.           //         const ax = +a[ak]._timestampUsec57;
  3681.           //         const bx = +b[bk]._timestampUsec57;
  3682.           //         if(ax >0 && bx >0){
  3683.           //           const c =  bx - ax ;
  3684.  
  3685.           //           return c > 0.1 ? -1 : c< -0.1 ? 1 : 0;
  3686.           //         }
  3687.           //         return 0;
  3688.  
  3689.           //       });
  3690.           //       console.log('sort', JSON.parse(JSON.stringify(arr)));
  3691.           //     }
  3692.           //     a=arr;
  3693.           //     */
  3694.  
  3695.           //     if (a && typeof a === 'object' && a.length >= 1) {
  3696.           //       const d = Date.now();
  3697.           //       const m = [];
  3698.           //       for (let i = 0, l = a.length; i < l; i++) {
  3699.           //         const action = a[i];
  3700.           //         const key = !action ? null : 'addChatItemAction' in action ? 'addChatItemAction' : 'addLiveChatTickerItemAction' in action ? 'addLiveChatTickerItemAction' : null;
  3701.           //         if (key === 'addChatItemAction' || key === 'addLiveChatTickerItemAction') {
  3702.           //           const itemAction = action[key] || 0;
  3703.           //           const item = itemAction.item || 0;
  3704.           //           if (item && typeof item === 'object') {
  3705.           //             let rendererKey = firstObjectKey(item);
  3706.           //             const renderer = item[rendererKey];
  3707.           //             let timestampUsec = getTimestampUsec(renderer);
  3708.           //             if (timestampUsec !== null) {
  3709.           //               renderer._timestampUsec57 = timestampUsec;
  3710.           //             }
  3711.           //             m.push(renderer);
  3712.           //             // if(timestampUsec!==null){
  3713.           //             //   if(key==='addLiveChatTickerItemAction')console.log(renderer, rendererKey, key)
  3714.           //             //   m.push(renderer);
  3715.  
  3716.           //             // }
  3717.           //           }
  3718.           //         }
  3719.           //       }
  3720.           //       if (m.length >= 1) {
  3721.  
  3722.           //         let lastUsec = null;
  3723.           //         for (let i = 0, l = m.length; i < l; i++) {
  3724.           //           const renderer = m[i];
  3725.           //           if ('_timestampUsec57' in renderer) {
  3726.           //             lastUsec = +renderer._timestampUsec57 / 1E3;
  3727.           //             renderer.__lcrTime__ = d;
  3728.           //             renderer.__actionAt__ = d;
  3729.           //           }
  3730.           //         }
  3731.  
  3732.  
  3733.           //         if (lastUsec !== null) {
  3734.  
  3735.           //           const refUsec = lastUsec
  3736.  
  3737.           //           let prevUsec = null;
  3738.           //           for (let i = 0, l = m.length; i < l; i++) {
  3739.           //             const renderer = m[i];
  3740.           //             if ('_timestampUsec57' in renderer) {
  3741.  
  3742.           //               let actualTime = +renderer._timestampUsec57 / 1E3; // ms
  3743.           //               let lcrTime = d - Math.round(refUsec - actualTime); // ms
  3744.  
  3745.           //               renderer.__lcrTime__ = lcrTime; // ms
  3746.           //               renderer.__actionAt__ = d;
  3747.  
  3748.           //               prevUsec = lcrTime
  3749.           //             } else {
  3750.  
  3751.           //               renderer._prevUsec57 = prevUsec;
  3752.           //             }
  3753.           //           }
  3754.  
  3755.  
  3756.           //           let nextUsec = null;
  3757.           //           for (let i = m.length - 1; i >= 0; i--) {
  3758.           //             const renderer = m[i];
  3759.           //             if ('_timestampUsec57' in renderer) {
  3760.  
  3761.           //               nextUsec = renderer.__lcrTime__
  3762.           //             } else {
  3763.  
  3764.           //               renderer._nextUsec57 = nextUsec;
  3765.  
  3766.           //               if (renderer._nextUsec57 > 0 && renderer._prevUsec57 > 0 && renderer._nextUsec57 > renderer._prevUsec57) {
  3767.           //                 renderer.__lcrTime__ = (renderer._nextUsec57 + renderer._prevUsec57) / 2;
  3768.           //                 renderer.__actionAt__ = d;
  3769.           //               }
  3770.           //             }
  3771.           //           }
  3772.  
  3773.  
  3774.           //         }
  3775.  
  3776.  
  3777.           //       }
  3778.           //     }
  3779.           //     return this.immediatelyApplyLiveChatActions32.apply(this, arguments)
  3780.           //   }
  3781.  
  3782.  
  3783.           // }
  3784.  
  3785.  
  3786.  
  3787.           console.log("[End]");
  3788.           console.groupEnd();
  3789.  
  3790.  
  3791.         });
  3792.  
  3793.       }
  3794.  
  3795.       customElements.whenDefined('yt-live-chat-item-list-renderer').then(() => {
  3796.  
  3797.         const tag = "yt-live-chat-item-list-renderer"
  3798.         const dummy = document.createElement(tag);
  3799.  
  3800.         const cProto = getProto(dummy);
  3801.         if (!cProto || !cProto.attached) {
  3802.           console.warn(`proto.attached for ${tag} is unavailable.`);
  3803.           return;
  3804.         }
  3805.  
  3806.         mightFirstCheckOnYtInit();
  3807.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-item-list-renderer hacks");
  3808.         console.log("[Begin]");
  3809.  
  3810.         const mclp = cProto;
  3811.         try {
  3812.           assertor(() => typeof mclp.scrollToBottom_ === 'function');
  3813.           assertor(() => typeof mclp.flushActiveItems_ === 'function');
  3814.           assertor(() => typeof mclp.canScrollToBottom_ === 'function');
  3815.           assertor(() => typeof mclp.setAtBottom === 'function');
  3816.           assertor(() => typeof mclp.scrollToBottom66_ === 'undefined');
  3817.           assertor(() => typeof mclp.flushActiveItems66_ === 'undefined');
  3818.         } catch (e) { }
  3819.  
  3820.  
  3821.         try {
  3822.           assertor(() => typeof mclp.attached === 'function');
  3823.           assertor(() => typeof mclp.detached === 'function');
  3824.           assertor(() => typeof mclp.canScrollToBottom_ === 'function');
  3825.           assertor(() => typeof mclp.isSmoothScrollEnabled_ === 'function');
  3826.           assertor(() => typeof mclp.maybeResizeScrollContainer_ === 'function');
  3827.           assertor(() => typeof mclp.refreshOffsetContainerHeight_ === 'function');
  3828.           assertor(() => typeof mclp.smoothScroll_ === 'function');
  3829.           assertor(() => typeof mclp.resetSmoothScroll_ === 'function');
  3830.         } catch (e) { }
  3831.  
  3832.         mclp.__intermediate_delay__ = null;
  3833.  
  3834.         let mzk = 0;
  3835.         let myk = 0;
  3836.         let mlf = 0;
  3837.         let myw = 0;
  3838.         let mzt = 0;
  3839.         let zarr = null;
  3840.         let mlg = 0;
  3841.  
  3842.         if ((mclp.clearList || 0).length === 0) {
  3843.           assertor(() => fnIntegrity(mclp.clearList, '0.106.50'));
  3844.           mclp.clearList66 = mclp.clearList;
  3845.           mclp.clearList = function () {
  3846.             mzk++;
  3847.             myk++;
  3848.             mlf++;
  3849.             myw++;
  3850.             mzt++;
  3851.             mlg++;
  3852.             zarr = null;
  3853.             this.__intermediate_delay__ = null;
  3854.             this.clearList66();
  3855.           };
  3856.           console.log("clearList", "OK");
  3857.         } else {
  3858.           console.log("clearList", "NG");
  3859.         }
  3860.  
  3861.  
  3862.         let onListRendererAttachedDone = false;
  3863.  
  3864.         function setList(itemOffset, items) {
  3865.  
  3866.           const isFirstTime = onListRendererAttachedDone === false;
  3867.  
  3868.           if (isFirstTime) {
  3869.             onListRendererAttachedDone = true;
  3870.             Promise.resolve().then(watchUserCSS);
  3871.             addCssManaged();
  3872.             setupEvents();
  3873.           }
  3874.  
  3875.           setupStyle(itemOffset, items);
  3876.  
  3877.           setupMutObserver(items);
  3878.         }
  3879.  
  3880.         mclp.attached419 = async function () {
  3881.  
  3882.           if (!this.isAttached) return;
  3883.  
  3884.           let maxTrial = 16;
  3885.           while (!this.$ || !this.$['item-scroller'] || !this.$['item-offset'] || !this.$['items']) {
  3886.             if (--maxTrial < 0 || !this.isAttached) return;
  3887.             await new Promise(requestAnimationFrame);
  3888.           }
  3889.  
  3890.           if (this.isAttached !== true) return;
  3891.  
  3892.           if (!this.$) {
  3893.             console.warn("!this.$");
  3894.             return;
  3895.           }
  3896.           if (!this.$) return;
  3897.           /** @type {HTMLElement | null} */
  3898.           const itemScroller = this.$['item-scroller'];
  3899.           /** @type {HTMLElement | null} */
  3900.           const itemOffset = this.$['item-offset'];
  3901.           /** @type {HTMLElement | null} */
  3902.           const items = this.$['items'];
  3903.  
  3904.           if (!itemScroller || !itemOffset || !items) {
  3905.             console.warn("items.parentNode !== itemOffset");
  3906.             return;
  3907.           }
  3908.  
  3909.           if (nodeParent(items) !== itemOffset) {
  3910.  
  3911.             console.warn("items.parentNode !== itemOffset");
  3912.             return;
  3913.           }
  3914.  
  3915.  
  3916.           if (items.id !== 'items' || itemOffset.id !== "item-offset") {
  3917.  
  3918.             console.warn("id incorrect");
  3919.             return;
  3920.           }
  3921.  
  3922.           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')
  3923.  
  3924.           if (!isTargetItems) {
  3925.             console.warn("!isTargetItems");
  3926.             return;
  3927.           }
  3928.  
  3929.           setList(itemOffset, items);
  3930.  
  3931.         }
  3932.  
  3933.         mclp.attached331 = mclp.attached;
  3934.         mclp.attached = function () {
  3935.           this.attached419 && this.attached419();
  3936.           return this.attached331();
  3937.         }
  3938.  
  3939.         mclp.detached331 = mclp.detached;
  3940.  
  3941.         mclp.detached = function () {
  3942.           setupMutObserver();
  3943.           return this.detached331();
  3944.         }
  3945.  
  3946.         const t29s = document.querySelectorAll("yt-live-chat-item-list-renderer");
  3947.         for (const t29 of t29s) {
  3948.           if (insp(t29).isAttached === true) {
  3949.             t29.attached419();
  3950.           }
  3951.         }
  3952.  
  3953.         if ((mclp.async || 0).length === 2 && (mclp.cancelAsync || 0).length === 1) {
  3954.  
  3955.           assertor(() => fnIntegrity(mclp.async, '2.24.15'));
  3956.           assertor(() => fnIntegrity(mclp.cancelAsync, '1.15.8'));
  3957.  
  3958.           /** @type {Map<number, any>} */
  3959.           const aMap = new Map();
  3960.           let count = 6150;
  3961.           mclp.async66 = mclp.async;
  3962.           mclp.async = function (e, f) {
  3963.             // ensure the previous operation is done
  3964.             // .async is usually after the time consuming functions like flushActiveItems_ and scrollToBottom_
  3965.             const hasF = arguments.length === 2;
  3966.             const stack = new Error().stack;
  3967.             const isFlushAsync = stack.indexOf('flushActiveItems_') >= 0;
  3968.             if (count > 1e9) count = 6159;
  3969.             const resId = ++count;
  3970.             aMap.set(resId, e);
  3971.             (this.__intermediate_delay__ || Promise.resolve()).then(rk => {
  3972.               const rp = aMap.get(resId);
  3973.               if (typeof rp !== 'function') {
  3974.                 return;
  3975.               }
  3976.               let cancelCall = false;
  3977.               if (isFlushAsync) {
  3978.                 if (rk < 0) {
  3979.                   cancelCall = true;
  3980.                 } else if (rk === 2 && arguments[0] === this.maybeScrollToBottom_) {
  3981.                   cancelCall = true;
  3982.                 }
  3983.               }
  3984.               if (cancelCall) {
  3985.                 aMap.delete(resId);
  3986.               } else {
  3987.                 const asyncEn = function () {
  3988.                   aMap.delete(resId);
  3989.                   return rp.apply(this, arguments);
  3990.                 };
  3991.                 aMap.set(resId, hasF ? this.async66(asyncEn, f) : this.async66(asyncEn));
  3992.               }
  3993.             });
  3994.  
  3995.             return resId;
  3996.           }
  3997.  
  3998.           mclp.cancelAsync66 = mclp.cancelAsync;
  3999.           mclp.cancelAsync = function (resId) {
  4000.             if (resId <= 6150) {
  4001.               this.cancelAsync66(resId);
  4002.             } else if (aMap.has(resId)) {
  4003.               const rp = aMap.get(resId);
  4004.               aMap.delete(resId);
  4005.               if (typeof rp !== 'function') {
  4006.                 this.cancelAsync66(rp);
  4007.               }
  4008.             }
  4009.           }
  4010.  
  4011.           console.log("async", "OK");
  4012.         } else {
  4013.           console.log("async", "NG");
  4014.         }
  4015.  
  4016.  
  4017.         if ((mclp.showNewItems_ || 0).length === 0 && ENABLE_NO_SMOOTH_TRANSFORM) {
  4018.  
  4019.           assertor(() => fnIntegrity(mclp.showNewItems_, '0.170.79'));
  4020.           mclp.showNewItems66_ = mclp.showNewItems_;
  4021.  
  4022.           mclp.showNewItems77_ = async function () {
  4023.             if (myk > 1e9) myk = 9;
  4024.             let tid = ++myk;
  4025.  
  4026.             await new Promise(requestAnimationFrame);
  4027.  
  4028.             if (tid !== myk) {
  4029.               return;
  4030.             }
  4031.  
  4032.             const cnt = this;
  4033.  
  4034.             await Promise.resolve();
  4035.             cnt.showNewItems66_();
  4036.  
  4037.             await Promise.resolve();
  4038.  
  4039.           }
  4040.  
  4041.           mclp.showNewItems_ = function () {
  4042.  
  4043.             const cnt = this;
  4044.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4045.               cnt.showNewItems77_().then(() => {
  4046.                 resolve();
  4047.               });
  4048.             });
  4049.           }
  4050.  
  4051.           console.log("showNewItems_", "OK");
  4052.         } else {
  4053.           console.log("showNewItems_", "NG");
  4054.         }
  4055.  
  4056.  
  4057.         if ((mclp.flushActiveItems_ || 0).length === 0) {
  4058.  
  4059.           const sfi = fnIntegrity(mclp.flushActiveItems_);
  4060.           if (sfi === '0.156.86') {
  4061.             // https://www.youtube.com/s/desktop/f61c8d85/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  4062.             
  4063.             // added "refreshOffsetContainerHeight_"
  4064.  
  4065.             //   f.flushActiveItems_ = function() {
  4066.             //     var a = this;
  4067.             //     if (0 < this.activeItems_.length)
  4068.             //         if (this.canScrollToBottom_()) {
  4069.             //             var b = Math.max(this.visibleItems.length + this.activeItems_.length - this.data.maxItemsToDisplay, 0);
  4070.             //             b && this.splice("visibleItems", 0, b);
  4071.             //             if (this.isSmoothScrollEnabled_() || this.dockableMessages.length)
  4072.             //                 this.preinsertHeight_ = this.items.clientHeight;
  4073.             //             this.activeItems_.unshift("visibleItems");
  4074.             //             try {
  4075.             //                 this.push.apply(this, this.activeItems_)
  4076.             //             } catch (c) {
  4077.             //                 fm(c)
  4078.             //             }
  4079.             //             this.activeItems_ = [];
  4080.             //             this.isSmoothScrollEnabled_() ? this.canScrollToBottom_() && Mw(function() {
  4081.             //                 a.showNewItems_()
  4082.             //             }) : Mw(function() {
  4083.             //                 a.refreshOffsetContainerHeight_();
  4084.             //                 a.maybeScrollToBottom_()
  4085.             //             })
  4086.             //         } else
  4087.             //             this.activeItems_.length > this.data.maxItemsToDisplay && this.activeItems_.splice(0, this.activeItems_.length - this.data.maxItemsToDisplay)
  4088.             // }
  4089.             // ;
  4090.  
  4091.           } else if (sfi === '0.150.84') {
  4092.             // https://www.youtube.com/s/desktop/e4d15d2c/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  4093.             // var b = Math.max(this.visibleItems.length + this.activeItems_.length - this.data.maxItemsToDisplay, 0);
  4094.             //     b && this.splice("visibleItems", 0, b);
  4095.             //     if (this.isSmoothScrollEnabled_() || this.dockableMessages.length)
  4096.             //         this.preinsertHeight_ = this.items.clientHeight;
  4097.             //     this.activeItems_.unshift("visibleItems");
  4098.             //     try {
  4099.             //         this.push.apply(this, this.activeItems_)
  4100.             //     } catch (c) {
  4101.             //         nm(c)
  4102.             //     }
  4103.             //     this.activeItems_ = [];
  4104.             //     this.isSmoothScrollEnabled_() ? this.canScrollToBottom_() && zQ(function() {
  4105.             //         a.showNewItems_()
  4106.             //     }) : zQ(function() {
  4107.             //         a.maybeScrollToBottom_()
  4108.             //     })
  4109.           } else if (sfi === '0.137.81' || sfi === '0.138.81') {
  4110.             // e.g. https://www.youtube.com/yts/jsbin/live_chat_polymer-vflCyWEBP/live_chat_polymer.js
  4111.           } else {
  4112.             assertor(() => fnIntegrity(mclp.flushActiveItems_, '0.150.84'));
  4113.           }
  4114.  
  4115.           let hasMoreMessageState = !ENABLE_SHOW_MORE_BLINKER ? -1 : 0;
  4116.  
  4117.           let contensWillChangeController = null;
  4118.  
  4119.           mclp.flushActiveItems66_ = mclp.flushActiveItems_;
  4120.  
  4121.           mclp.flushActiveItems78_ = async function (tid) {
  4122.             try {
  4123.               if (tid !== mlf) return;
  4124.               const lockedMaxItemsToDisplay = this.data.maxItemsToDisplay944;
  4125.               let logger = false;
  4126.               const cnt = this;
  4127.               let immd = cnt.__intermediate_delay__;
  4128.               await new Promise(requestAnimationFrame);
  4129.  
  4130.               if (tid !== mlf || cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4131.               if (!cnt.activeItems_ || cnt.activeItems_.length === 0) return;
  4132.  
  4133.               mlf++;
  4134.               if (mlg > 1e9) mlg = 9;
  4135.               ++mlg;
  4136.  
  4137.               const tmpMaxItemsCount = this.data.maxItemsToDisplay;
  4138.               const reducedMaxItemsToDisplay = MAX_ITEMS_FOR_FULL_FLUSH;
  4139.               let changeMaxItemsToDisplay = false;
  4140.               const activeItemsLen = this.activeItems_.length;
  4141.               if (activeItemsLen > tmpMaxItemsCount && tmpMaxItemsCount > 0) {
  4142.                 logger = true;
  4143.  
  4144.                 groupCollapsed("YouTube Super Fast Chat", " | flushActiveItems78_");
  4145.  
  4146.                 logger && console.log('[Begin]')
  4147.  
  4148.                 console.log('this.activeItems_.length > N', activeItemsLen, tmpMaxItemsCount);
  4149.                 if (ENABLE_REDUCED_MAXITEMS_FOR_FLUSH && lockedMaxItemsToDisplay === tmpMaxItemsCount && lockedMaxItemsToDisplay !== reducedMaxItemsToDisplay) {
  4150.                   console.log('reduce maxitems');
  4151.                   if (tmpMaxItemsCount > reducedMaxItemsToDisplay) {
  4152.                     // as all the rendered chats are already "outdated"
  4153.                     // all old chats shall remove and reduced number of few chats will be rendered
  4154.                     // then restore to the original number
  4155.                     changeMaxItemsToDisplay = true;
  4156.                     this.data.maxItemsToDisplay = reducedMaxItemsToDisplay;
  4157.                     console.log(`'maxItemsToDisplay' is reduced from ${tmpMaxItemsCount} to ${reducedMaxItemsToDisplay}.`)
  4158.                   }
  4159.                   this.activeItems_.splice(0, activeItemsLen - this.data.maxItemsToDisplay);
  4160.                   //   console.log('changeMaxItemsToDisplay 01', this.data.maxItemsToDisplay, oMaxItemsToDisplay, reducedMaxItemsToDisplay)
  4161.  
  4162.                   console.log('new this.activeItems_.length > N', this.activeItems_.length);
  4163.                 } else {
  4164.                   this.activeItems_.splice(0, activeItemsLen - (tmpMaxItemsCount < 900 ? tmpMaxItemsCount : 900));
  4165.  
  4166.                   console.log('new this.activeItems_.length > N', this.activeItems_.length);
  4167.                 }
  4168.               }
  4169.               // it is found that it will render all stacked chats after switching back from background
  4170.               // to avoid lagging in popular livestream with massive chats, trim first before rendering.
  4171.               // this.activeItems_.length > this.data.maxItemsToDisplay && this.activeItems_.splice(0, this.activeItems_.length - this.data.maxItemsToDisplay);
  4172.  
  4173.  
  4174.               const items = (cnt.$ || 0).items;
  4175.  
  4176.               if (USE_WILL_CHANGE_CONTROLLER) {
  4177.                 if (contensWillChangeController && contensWillChangeController.element !== items) {
  4178.                   contensWillChangeController.release();
  4179.                   contensWillChangeController = null;
  4180.                 }
  4181.                 if (!contensWillChangeController) contensWillChangeController = new WillChangeController(items, 'contents');
  4182.               }
  4183.               const wcController = contensWillChangeController;
  4184.               cnt.__intermediate_delay__ = Promise.all([cnt.__intermediate_delay__ || null, immd || null]);
  4185.               wcController && wcController.beforeOper();
  4186.               await Promise.resolve();
  4187.               const acItems = cnt.activeItems_;
  4188.               const len1 = acItems.length;
  4189.               if (!len1) console.warn('cnt.activeItems_.length = 0');
  4190.               let waitFor = [];
  4191.  
  4192.  
  4193.               /** @type {Set<string>} */
  4194.               const imageLinks = new Set();
  4195.  
  4196.               if (ENABLE_PRELOAD_THUMBNAIL || EMOJI_IMAGE_SINGLE_THUMBNAIL || AUTHOR_PHOTO_SINGLE_THUMBNAIL) {
  4197.                 for (const item of acItems) {
  4198.                   fixLiveChatItem(item, imageLinks);
  4199.                 }
  4200.               }
  4201.               if (ENABLE_PRELOAD_THUMBNAIL && kptPF !== null && (kptPF & (8 | 4)) && imageLinks.size > 0) {
  4202.                 if (emojiPrefetched.size > PREFETCH_LIMITED_SIZE_EMOJI) emojiPrefetched.clear();
  4203.                 if (authorPhotoPrefetched.size > PREFETCH_LIMITED_SIZE_AUTHOR_PHOTO) authorPhotoPrefetched.clear();
  4204.  
  4205.                 // reference: https://github.com/Yuanfang-fe/Blog-X/issues/34
  4206.                 const rel = kptPF & 8 ? 'subresource' : kptPF & 16 ? 'preload' : kptPF & 4 ? 'prefetch' : '';
  4207.                 // preload performs the high priority fetching.
  4208.                 // prefetch delays the chat display if the video resoruce is demanding.
  4209.  
  4210.                 if (rel) {
  4211.  
  4212.                   imageLinks.forEach(imageLink => {
  4213.                     let d = false;
  4214.                     const isEmoji = imageLink.includes('/emoji/');
  4215.                     const pretechedSet = isEmoji ? emojiPrefetched : authorPhotoPrefetched;
  4216.                     if (!pretechedSet.has(imageLink)) {
  4217.                       pretechedSet.add(imageLink);
  4218.                       d = true;
  4219.                     }
  4220.                     if (d) {
  4221.                       waitFor.push(linker(null, rel, imageLink, 'image'));
  4222.  
  4223.                     }
  4224.                   })
  4225.  
  4226.                 }
  4227.  
  4228.               }
  4229.  
  4230.               const noVisibleItem1 = ((cnt.visibleItems || 0).length || 0) === 0;
  4231.               skipDontRender = noVisibleItem1;
  4232.               // console.log('ss1', Date.now())
  4233.               if (waitFor.length > 0) {
  4234.                 await Promise.race([new Promise(r => setTimeout(r, 250)), Promise.all(waitFor)]);
  4235.               }
  4236.               waitFor.length = 0;
  4237.               waitFor = null;
  4238.               // console.log('ss2', Date.now())
  4239.               cnt.flushActiveItems66_();
  4240.               const noVisibleItem2 = ((cnt.visibleItems || 0).length || 0) === 0;
  4241.               skipDontRender = noVisibleItem2;
  4242.               const len2 = cnt.activeItems_.length;
  4243.               const bAsync = len1 !== len2;
  4244.               await Promise.resolve();
  4245.               if (wcController) {
  4246.                 if (bAsync) {
  4247.                   cnt.async(() => {
  4248.                     wcController.afterOper();
  4249.                   });
  4250.                 } else {
  4251.                   wcController.afterOper();
  4252.                 }
  4253.               }
  4254.               if (changeMaxItemsToDisplay && this.data.maxItemsToDisplay === reducedMaxItemsToDisplay && tmpMaxItemsCount > reducedMaxItemsToDisplay) {
  4255.                 this.data.maxItemsToDisplay = tmpMaxItemsCount;
  4256.  
  4257.                 logger && console.log(`'maxItemsToDisplay' is restored from ${reducedMaxItemsToDisplay} to ${tmpMaxItemsCount}.`);
  4258.                 //   console.log('changeMaxItemsToDisplay 02', this.data.maxItemsToDisplay, oMaxItemsToDisplay, reducedMaxItemsToDisplay)
  4259.               } else if (changeMaxItemsToDisplay) {
  4260.  
  4261.                 logger && console.log(`'maxItemsToDisplay' cannot be restored`, {
  4262.                   maxItemsToDisplay: this.data.maxItemsToDisplay,
  4263.                   reducedMaxItemsToDisplay,
  4264.                   originalMaxItemsToDisplay: tmpMaxItemsCount
  4265.                 });
  4266.               }
  4267.               logger && console.log('[End]');
  4268.  
  4269.               logger && console.groupEnd();
  4270.  
  4271.               if (noVisibleItem1 && !noVisibleItem2) {
  4272.                 // fix possible no auto scroll issue.
  4273.                 setTimeout(() => cnt.setAtBottom(), 1);
  4274.               }
  4275.  
  4276.               if (!ENABLE_NO_SMOOTH_TRANSFORM) {
  4277.  
  4278.  
  4279.                 const ff = () => {
  4280.  
  4281.                   if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4282.                   //   if (tid !== mlf || cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4283.                   if (!cnt.atBottom && cnt.allowScroll && cnt.hasUserJustInteracted11_ && !cnt.hasUserJustInteracted11_()) {
  4284.  
  4285.                     if (typeof window.nextBrowserTick !== 'function') {
  4286.                       cnt.scrollToBottom_();
  4287.                       Promise.resolve().then(() => {
  4288.                         if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4289.                         if (!cnt.canScrollToBottom_()) cnt.scrollToBottom_();
  4290.                       });
  4291.                     } else {
  4292.                       nextBrowserTick(() => {
  4293.                         if (cnt.isAttached === false || (cnt.hostElement || cnt).isConnected === false) return;
  4294.                         cnt.scrollToBottom_();
  4295.                       });
  4296.                     }
  4297.  
  4298.                   }
  4299.                 }
  4300.  
  4301.                 ff();
  4302.  
  4303.  
  4304.                 Promise.resolve().then(ff);
  4305.  
  4306.                 // requestAnimationFrame(ff);
  4307.               } else if (true) { // it might not be sticky to bottom when there is a full refresh.
  4308.  
  4309.                 const knt = cnt;
  4310.                 if (!scrollChatFn) {
  4311.                   const cnt = knt;
  4312.                   const f = () => {
  4313.                     const itemScroller = cnt.itemScroller;
  4314.                     if (!itemScroller || itemScroller.isConnected === false || cnt.isAttached === false) return;
  4315.                     if (!cnt.atBottom) {
  4316.                       cnt.scrollToBottom_();
  4317.                     } else if (itemScroller.scrollTop === 0) { // not yet interacted by user; cannot stick to bottom
  4318.                       itemScroller.scrollTop = itemScroller.scrollHeight;
  4319.                     }
  4320.                   };
  4321.                   if (typeof window.nextBrowserTick !== 'function') {
  4322.                     scrollChatFn = () => Promise.resolve().then(f).then(f);
  4323.                   } else {
  4324.                     scrollChatFn = () => nextBrowserTick(f);
  4325.                   }
  4326.                 }
  4327.  
  4328.                 if (!ENABLE_DELAYED_CHAT_OCCURRENCE) scrollChatFn();
  4329.               }
  4330.  
  4331.               return 1;
  4332.  
  4333.  
  4334.             } catch (e) {
  4335.               console.warn(e);
  4336.             }
  4337.           }
  4338.  
  4339.           mclp.flushActiveItems77_ = function () {
  4340.  
  4341.             return new Promise(resResolve => {
  4342.               try {
  4343.                 const cnt = this;
  4344.                 if (mlf > 1e9) mlf = 9;
  4345.                 let tid = ++mlf;
  4346.                 const hostElement = cnt.hostElement || cnt;
  4347.                 if (tid !== mlf || cnt.isAttached === false || hostElement.isConnected === false) return resResolve();
  4348.                 if (!cnt.activeItems_ || cnt.activeItems_.length === 0) return resResolve();
  4349.  
  4350.                 // 4 times to maxItems to avoid frequent trimming.
  4351.                 // 1 ... 10 ... 20 ... 30 ... 40 ... 50 ... 60 => 16 ... 20 ... 30 ..... 60 ... => 16
  4352.  
  4353.                 const lockedMaxItemsToDisplay = this.data.maxItemsToDisplay944;
  4354.                 this.activeItems_.length > lockedMaxItemsToDisplay * 4 && lockedMaxItemsToDisplay > 4 && this.activeItems_.splice(0, this.activeItems_.length - lockedMaxItemsToDisplay - 1);
  4355.                 if (cnt.canScrollToBottom_()) {
  4356.                   cnt.mutexPromiseFA78 = (cnt.mutexPromiseFA78 || Promise.resolve())
  4357.                     .then(() => cnt.flushActiveItems78_(tid)) // async function
  4358.                     .then((asyncResult) => {
  4359.                       resResolve(asyncResult); // either undefined or 1
  4360.                       resResolve = null;
  4361.                     }).catch((e) => {
  4362.                       console.warn(e);
  4363.                       if (resResolve) resResolve();
  4364.                     });
  4365.                 } else {
  4366.                   resResolve(2);
  4367.                   resResolve = null;
  4368.                 }
  4369.               } catch (e) {
  4370.                 console.warn(e);
  4371.                 if (resResolve) resResolve();
  4372.               }
  4373.  
  4374.  
  4375.             });
  4376.  
  4377.           }
  4378.  
  4379.           mclp.flushActiveItems_ = function () {
  4380.             const cnt = this;
  4381.  
  4382.             if (arguments.length !== 0 || !cnt.activeItems_ || !cnt.canScrollToBottom_) return cnt.flushActiveItems66_.apply(this, arguments);
  4383.  
  4384.             if (cnt.activeItems_.length === 0) {
  4385.               cnt.__intermediate_delay__ = null;
  4386.               return;
  4387.             }
  4388.  
  4389.             const cntData = ((cnt || 0).data || 0);
  4390.             if (cntData.maxItemsToDisplay944 === undefined) {
  4391.               cntData.maxItemsToDisplay944 = null;
  4392.               if (cntData.maxItemsToDisplay > MAX_ITEMS_FOR_TOTAL_DISPLAY) cntData.maxItemsToDisplay = MAX_ITEMS_FOR_TOTAL_DISPLAY;
  4393.               cntData.maxItemsToDisplay944 = cntData.maxItemsToDisplay || null;
  4394.             }
  4395.  
  4396.             // ignore previous __intermediate_delay__ and create a new one
  4397.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4398.               cnt.flushActiveItems77_().then(rt => {  // either undefined or 1 or 2
  4399.                 if (rt === 1) {
  4400.                   resolve(1); // success, scroll to bottom
  4401.                   if (hasMoreMessageState === 1) {
  4402.                     hasMoreMessageState = 0;
  4403.                     const showMore = (cnt.$ || 0)['show-more'];
  4404.                     if (showMore) {
  4405.                       showMore.classList.remove('has-new-messages-miuzp');
  4406.                     }
  4407.                   }
  4408.                 }
  4409.                 else if (rt === 2) {
  4410.                   resolve(2); // success, trim
  4411.                   if (hasMoreMessageState === 0) {
  4412.                     hasMoreMessageState = 1;
  4413.                     const showMore = cnt.$['show-more'];
  4414.                     if (showMore) {
  4415.                       showMore.classList.add('has-new-messages-miuzp');
  4416.                     }
  4417.                   }
  4418.                 }
  4419.                 else resolve(-1); // skip
  4420.               }).catch(e => {
  4421.                 console.warn(e);
  4422.               });
  4423.             });
  4424.  
  4425.           }
  4426.           console.log("flushActiveItems_", "OK");
  4427.         } else {
  4428.           console.log("flushActiveItems_", "NG");
  4429.         }
  4430.  
  4431.         if (SUPPRESS_refreshOffsetContainerHeight_ && typeof mclp.refreshOffsetContainerHeight_ === 'function' && !mclp.refreshOffsetContainerHeight26_ && mclp.refreshOffsetContainerHeight_.length === 0) {
  4432.           assertor(() => fnIntegrity(mclp.refreshOffsetContainerHeight_, '0.31.21'));
  4433.           mclp.refreshOffsetContainerHeight26_ = mclp.refreshOffsetContainerHeight_;
  4434.           mclp.refreshOffsetContainerHeight_ = function () {
  4435.             // var a = this.itemScroller.clientHeight;
  4436.             // this.itemOffset.style.height = this.items.clientHeight + "px";
  4437.             // this.bottomAlignMessages && (this.itemOffset.style.minHeight = a + "px")
  4438.           }
  4439.           console.log("refreshOffsetContainerHeight_", "OK");
  4440.         } else {
  4441.           console.log("refreshOffsetContainerHeight_", "NG");
  4442.         }
  4443.  
  4444.         mclp.delayFlushActiveItemsAfterUserAction11_ = async function () {
  4445.           try {
  4446.             if (mlg > 1e9) mlg = 9;
  4447.             const tid = ++mlg;
  4448.             const keepTrialCond = () => this.atBottom && this.allowScroll && (tid === mlg) && this.isAttached === true && this.activeItems_.length >= 1 && (this.hostElement || 0).isConnected === true;
  4449.             const runCond = () => this.canScrollToBottom_();
  4450.             if (!keepTrialCond()) return;
  4451.             if (runCond()) return this.flushActiveItems_() | 1; // avoid return promise
  4452.             await new Promise(r => setTimeout(r, 80));
  4453.             if (!keepTrialCond()) return;
  4454.             if (runCond()) return this.flushActiveItems_() | 1;
  4455.             await new Promise(requestAnimationFrame);
  4456.             if (runCond()) return this.flushActiveItems_() | 1;
  4457.           } catch (e) {
  4458.             console.warn(e);
  4459.           }
  4460.         }
  4461.  
  4462.         if ((mclp.atBottomChanged_ || 0).length === 1) {
  4463.           // note: if the scrolling is too frequent, the show more visibility might get wrong.
  4464.  
  4465.           const sfi = fnIntegrity(mclp.atBottomChanged_);
  4466.           if (sfi === '1.73.37') {
  4467.             // https://www.youtube.com/s/desktop/e4d15d2c/jsbin/live_chat_polymer.vflset/live_chat_polymer.js
  4468.           } else if (sfi === '1.75.39') {
  4469.             // e.g. https://www.youtube.com/yts/jsbin/live_chat_polymer-vflCyWEBP/live_chat_polymer.js
  4470.           } else {
  4471.             assertor(() => fnIntegrity(mclp.atBottomChanged_, '1.73.37'));
  4472.           }
  4473.  
  4474.           const querySelector = HTMLElement.prototype.querySelector;
  4475.           const U = (element) => ({
  4476.             querySelector: (selector) => querySelector.call(element, selector)
  4477.           });
  4478.  
  4479.           let qid = 0;
  4480.           mclp.atBottomChanged_ = function (a) {
  4481.             let tid = ++qid;
  4482.             let b = this;
  4483.             a ? this.hideShowMoreAsync_ || (this.hideShowMoreAsync_ = this.async(function () {
  4484.               if (tid !== qid) return;
  4485.               U(b.hostElement).querySelector("#show-more").style.visibility = "hidden"
  4486.             }, 200)) : (this.hideShowMoreAsync_ && this.cancelAsync(this.hideShowMoreAsync_),
  4487.               this.hideShowMoreAsync_ = null,
  4488.               U(this.hostElement).querySelector("#show-more").style.visibility = "visible")
  4489.           }
  4490.  
  4491.           console.log("atBottomChanged_", "OK");
  4492.         } else {
  4493.           console.log("atBottomChanged_", "NG");
  4494.         }
  4495.  
  4496.         if ((mclp.onScrollItems_ || 0).length === 1) {
  4497.  
  4498.           assertor(() => fnIntegrity(mclp.onScrollItems_, '1.17.9'));
  4499.           mclp.onScrollItems66_ = mclp.onScrollItems_;
  4500.           mclp.onScrollItems77_ = async function (evt) {
  4501.             if (myw > 1e9) myw = 9;
  4502.             let tid = ++myw;
  4503.  
  4504.             await new Promise(requestAnimationFrame);
  4505.  
  4506.             if (tid !== myw) {
  4507.               return;
  4508.             }
  4509.  
  4510.             const cnt = this;
  4511.  
  4512.             await Promise.resolve();
  4513.             if (USE_OPTIMIZED_ON_SCROLL_ITEMS) {
  4514.               await Promise.resolve().then(() => {
  4515.                 this.ytRendererBehavior.onScroll(evt);
  4516.               }).then(() => {
  4517.                 if (this.canScrollToBottom_()) {
  4518.                   const hasUserJustInteracted = this.hasUserJustInteracted11_ ? this.hasUserJustInteracted11_() : true;
  4519.                   if (hasUserJustInteracted) {
  4520.                     // only when there is an user action
  4521.                     this.setAtBottom();
  4522.                     return 1;
  4523.                   }
  4524.                 } else {
  4525.                   // no message inserting
  4526.                   this.setAtBottom();
  4527.                   return 1;
  4528.                 }
  4529.               }).then((r) => {
  4530.  
  4531.                 if (this.activeItems_.length) {
  4532.  
  4533.                   if (this.canScrollToBottom_()) {
  4534.                     this.flushActiveItems_();
  4535.                     return 1 && r;
  4536.                   } else if (this.atBottom && this.allowScroll && (this.hasUserJustInteracted11_ && this.hasUserJustInteracted11_())) {
  4537.                     // delayed due to user action
  4538.                     this.delayFlushActiveItemsAfterUserAction11_ && this.delayFlushActiveItemsAfterUserAction11_();
  4539.                     return 0;
  4540.                   }
  4541.                 }
  4542.               }).then((r) => {
  4543.                 if (r) {
  4544.                   // ensure setAtBottom is correctly set
  4545.                   this.setAtBottom();
  4546.                 }
  4547.               });
  4548.             } else {
  4549.               cnt.onScrollItems66_(evt);
  4550.             }
  4551.  
  4552.             await Promise.resolve();
  4553.  
  4554.           }
  4555.  
  4556.           mclp.onScrollItems_ = function (evt) {
  4557.  
  4558.             const cnt = this;
  4559.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4560.               cnt.onScrollItems77_(evt).then(() => {
  4561.                 resolve();
  4562.               });
  4563.             });
  4564.           }
  4565.           console.log("onScrollItems_", "OK");
  4566.         } else {
  4567.           console.log("onScrollItems_", "NG");
  4568.         }
  4569.  
  4570.         if ((mclp.handleLiveChatActions_ || 0).length === 1) {
  4571.  
  4572.           const sfi = fnIntegrity(mclp.handleLiveChatActions_);
  4573.           if (sfi === '1.39.20') {
  4574.             // TBC
  4575.           } else if (sfi === '1.31.17') {
  4576.             // original
  4577.           } else {
  4578.             assertor(() => fnIntegrity(mclp.handleLiveChatActions_, '1.31.17'));
  4579.           }
  4580.  
  4581.           mclp.handleLiveChatActions66_ = mclp.handleLiveChatActions_;
  4582.  
  4583.           mclp.handleLiveChatActions77_ = async function (arr) {
  4584.             if (typeof (arr || 0).length !== 'number') {
  4585.               this.handleLiveChatActions66_(arr);
  4586.               return;
  4587.             }
  4588.             if (mzt > 1e9) mzt = 9;
  4589.             let tid = ++mzt;
  4590.  
  4591.             if (zarr === null) zarr = arr;
  4592.             else Array.prototype.push.apply(zarr, arr);
  4593.             arr = null;
  4594.  
  4595.             await new Promise(requestAnimationFrame);
  4596.  
  4597.             if (tid !== mzt || zarr === null) {
  4598.               return;
  4599.             }
  4600.  
  4601.             const carr = zarr;
  4602.             zarr = null;
  4603.  
  4604.             await Promise.resolve();
  4605.             this.handleLiveChatActions66_(carr);
  4606.             await Promise.resolve();
  4607.  
  4608.           }
  4609.  
  4610.           mclp.handleLiveChatActions_ = function (arr) {
  4611.  
  4612.             const cnt = this;
  4613.             cnt.__intermediate_delay__ = new Promise(resolve => {
  4614.               cnt.handleLiveChatActions77_(arr).then(() => {
  4615.                 resolve();
  4616.               });
  4617.             });
  4618.           }
  4619.           console.log("handleLiveChatActions_", "OK");
  4620.         } else {
  4621.           console.log("handleLiveChatActions_", "NG");
  4622.         }
  4623.  
  4624.         mclp.hasUserJustInteracted11_ = () => {
  4625.           const t = dateNow();
  4626.           return (t - lastWheel < 80) || currentMouseDown || currentTouchDown || (t - lastUserInteraction < 80);
  4627.         }
  4628.  
  4629.         if ((mclp.canScrollToBottom_ || 0).length === 0) {
  4630.  
  4631.           assertor(() => fnIntegrity(mclp.canScrollToBottom_, '0.9.5'));
  4632.  
  4633.           mclp.canScrollToBottom_ = function () {
  4634.             return this.atBottom && this.allowScroll && !this.hasUserJustInteracted11_();
  4635.           }
  4636.  
  4637.           console.log("canScrollToBottom_", "OK");
  4638.         } else {
  4639.           console.log("canScrollToBottom_", "NG");
  4640.         }
  4641.  
  4642.         if (ENABLE_NO_SMOOTH_TRANSFORM) {
  4643.  
  4644.           mclp.isSmoothScrollEnabled_ = function () {
  4645.             return false;
  4646.           }
  4647.  
  4648.           mclp.maybeResizeScrollContainer_ = function () {
  4649.             //
  4650.           }
  4651.  
  4652.           mclp.refreshOffsetContainerHeight_ = function () {
  4653.             //
  4654.           }
  4655.  
  4656.           mclp.smoothScroll_ = function () {
  4657.             //
  4658.           }
  4659.  
  4660.           mclp.resetSmoothScroll_ = function () {
  4661.             //
  4662.           }
  4663.           console.log("ENABLE_NO_SMOOTH_TRANSFORM", "OK");
  4664.         } else {
  4665.           console.log("ENABLE_NO_SMOOTH_TRANSFORM", "NG");
  4666.         }
  4667.  
  4668.         if (typeof mclp.forEachItem_ === 'function' && !mclp.forEachItem66_ && skipErrorForhandleAddChatItemAction_ && mclp.forEachItem_.length === 1) {
  4669.  
  4670.           mclp.forEachItem66_ = mclp.forEachItem_;
  4671.           mclp.forEachItem_ = function (a) {
  4672.  
  4673.             // ƒ (a){this.visibleItems.forEach(a.bind(this,"visibleItems"));this.activeItems_.forEach(a.bind(this,"activeItems_"))}
  4674.  
  4675.             try {
  4676.  
  4677.               let items801 = false;
  4678.               if (typeof a === 'function') {
  4679.                 const items = this.items;
  4680.                 if (items instanceof HTMLDivElement) {
  4681.                   const ev = this.visibleItems;
  4682.                   const ea = this.activeItems_;
  4683.                   if (ev && ea && ev.length >= 0 && ea.length >= 0) {
  4684.                     items801 = items;
  4685.                   }
  4686.                 }
  4687.               }
  4688.  
  4689.               if (items801) {
  4690.                 items801.__children801__ = 1;
  4691.                 const res = this.forEachItem66_(a);
  4692.                 items801.__children801__ = 0;
  4693.                 return res;
  4694.               }
  4695.  
  4696.             } catch (e) { }
  4697.             return this.forEachItem66_(a);
  4698.  
  4699.  
  4700.             // this.visibleItems.forEach((val, idx, arr)=>{
  4701.             //   a.call(this, 'visibleItems', val, idx, arr);
  4702.             // });
  4703.  
  4704.             // this.activeItems_.forEach((val, idx, arr)=>{
  4705.             //   a.call(this, 'activeItems_', val, idx, arr);
  4706.             // });
  4707.  
  4708.  
  4709.  
  4710.           }
  4711.  
  4712.  
  4713.         }
  4714.  
  4715.         if (typeof mclp.handleAddChatItemAction_ === 'function' && !mclp.handleAddChatItemAction66_ && FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION && (EMOJI_IMAGE_SINGLE_THUMBNAIL || AUTHOR_PHOTO_SINGLE_THUMBNAIL)) {
  4716.  
  4717.           mclp.handleAddChatItemAction66_ = mclp.handleAddChatItemAction_;
  4718.           mclp.handleAddChatItemAction_ = function (a) {
  4719.             try {
  4720.               if (a && typeof a === 'object' && !('length' in a)) {
  4721.                 fixLiveChatItem(a.item, null);
  4722.                 console.assert(arguments[0] === a);
  4723.               }
  4724.             } catch (e) { console.warn(e) }
  4725.             let res;
  4726.             if (skipErrorForhandleAddChatItemAction_) { // YouTube Native Engine Issue
  4727.               try {
  4728.                 res = this.handleAddChatItemAction66_.apply(this, arguments);
  4729.               } catch (e) {
  4730.                 if (e && (e.message || '').includes('.querySelector(')) {
  4731.                   console.log("skipErrorForhandleAddChatItemAction_", e.message);
  4732.                 } else {
  4733.                   throw e;
  4734.                 }
  4735.               }
  4736.             } else {
  4737.               res = this.handleAddChatItemAction66_.apply(this, arguments);
  4738.             }
  4739.             return res;
  4740.           }
  4741.  
  4742.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION) console.log("handleAddChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION ]", "OK");
  4743.         } else {
  4744.  
  4745.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION) console.log("handleAddChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_ADDITION ]", "OK");
  4746.         }
  4747.  
  4748.  
  4749.         if (typeof mclp.handleReplaceChatItemAction_ === 'function' && !mclp.handleReplaceChatItemAction66_ && FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT && (EMOJI_IMAGE_SINGLE_THUMBNAIL || AUTHOR_PHOTO_SINGLE_THUMBNAIL)) {
  4750.  
  4751.           mclp.handleReplaceChatItemAction66_ = mclp.handleReplaceChatItemAction_;
  4752.           mclp.handleReplaceChatItemAction_ = function (a) {
  4753.             try {
  4754.               if (a && typeof a === 'object' && !('length' in a)) {
  4755.                 fixLiveChatItem(a.replacementItem, null);
  4756.                 console.assert(arguments[0] === a);
  4757.               }
  4758.             } catch (e) { console.warn(e) }
  4759.             return this.handleReplaceChatItemAction66_.apply(this, arguments);
  4760.           }
  4761.  
  4762.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT) console.log("handleReplaceChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT ]", "OK");
  4763.         } else {
  4764.  
  4765.           if (FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT) console.log("handleReplaceChatItemAction_ [ FIX_THUMBNAIL_SIZE_ON_ITEM_REPLACEMENT ]", "OK");
  4766.         }
  4767.  
  4768.         console.log("[End]");
  4769.         console.groupEnd();
  4770.  
  4771.       }).catch(console.warn);
  4772.  
  4773.  
  4774.       const tickerContainerSetAttribute = function (attrName, attrValue) { // ensure '14.30000001%'.toFixed(1)
  4775.  
  4776.         let yd = (this.__dataHost || insp(this).__dataHost || 0).__data;
  4777.  
  4778.         if (arguments.length === 2 && attrName === 'style' && yd && attrValue) {
  4779.  
  4780.           // let v = yd.containerStyle.privateDoNotAccessOrElseSafeStyleWrappedValue_;
  4781.           let v = `${attrValue}`;
  4782.           // conside a ticker is 101px width
  4783.           // 1% = 1.01px
  4784.           // 0.2% = 0.202px
  4785.  
  4786.  
  4787.           const ratio1 = (yd.ratio * 100);
  4788.           if (ratio1 > -1) { // avoid NaN
  4789.  
  4790.             // countdownDurationMs
  4791.             // 600000 - 0.2%    <1% = 6s>  <0.2% = 1.2s>
  4792.             // 300000 - 0.5%    <1% = 3s>  <0.5% = 1.5s>
  4793.             // 150000 - 1%    <1% = 1.5s>
  4794.             // 75000 - 2%    <1% =0.75s > <2% = 1.5s>
  4795.             // 30000 - 5%    <1% =0.3s > <5% = 1.5s>
  4796.  
  4797.             // 99px * 5% = 4.95px
  4798.  
  4799.             // 15000 - 10%    <1% =0.15s > <10% = 1.5s>
  4800.  
  4801.  
  4802.             // 1% Duration
  4803.  
  4804.             let ratio2 = ratio1;
  4805.  
  4806.             const ydd = yd.data;
  4807.             if (ydd) {
  4808.  
  4809.               const d1 = ydd.durationSec;
  4810.               const d2 = ydd.fullDurationSec;
  4811.  
  4812.               // @ step timing [min. 0.2%]
  4813.               let numOfSteps = 500;
  4814.               if ((d1 === d2 || (d1 + 1 === d2)) && d1 > 1) {
  4815.                 if (d2 > 400) numOfSteps = 500; // 0.2%
  4816.                 else if (d2 > 200) numOfSteps = 200; // 0.5%
  4817.                 else if (d2 > 100) numOfSteps = 100; // 1%
  4818.                 else if (d2 > 50) numOfSteps = 50; // 2%
  4819.                 else if (d2 > 25) numOfSteps = 20; // 5% (max => 99px * 5% = 4.95px)
  4820.                 else numOfSteps = 20;
  4821.               }
  4822.               if (numOfSteps > TICKER_MAX_STEPS_LIMIT) numOfSteps = TICKER_MAX_STEPS_LIMIT;
  4823.               if (numOfSteps < 5) numOfSteps = 5;
  4824.  
  4825.               const rd = numOfSteps / 100.0;
  4826.  
  4827.               ratio2 = Math.round(ratio2 * rd) / rd;
  4828.  
  4829.               // ratio2 = Math.round(ratio2 * 5) / 5;
  4830.               ratio2 = ratio2.toFixed(1);
  4831.               v = v.replace(`${ratio1}%`, `${ratio2}%`).replace(`${ratio1}%`, `${ratio2}%`);
  4832.  
  4833.               if (yd.__style_last__ === v) return;
  4834.               yd.__style_last__ = v;
  4835.               // do not consider any delay here.
  4836.               // it shall be inside the looping for all properties changes. all the css background ops are in the same microtask.
  4837.  
  4838.             }
  4839.           }
  4840.  
  4841.           HTMLElement.prototype.setAttribute.call(dr(this), attrName, v);
  4842.  
  4843.  
  4844.         } else {
  4845.           HTMLElement.prototype.setAttribute.apply(dr(this), arguments);
  4846.         }
  4847.  
  4848.       };
  4849.  
  4850.  
  4851.       const fpTicker = (renderer) => {
  4852.         const cnt = insp(renderer);
  4853.         assertor(() => typeof (cnt || 0).is === 'string');
  4854.         assertor(() => ((cnt || 0).hostElement || 0).nodeType === 1);
  4855.         const container = (cnt.$ || 0).container;
  4856.         if (container) {
  4857.           assertor(() => (container || 0).nodeType === 1);
  4858.           assertor(() => typeof container.setAttribute === 'function');
  4859.           container.setAttribute = tickerContainerSetAttribute;
  4860.         } else {
  4861.           console.warn(`"container" does not exist in ${cnt.is}`);
  4862.         }
  4863.       };
  4864.  
  4865.  
  4866.       const tags = [
  4867.         "yt-live-chat-ticker-paid-message-item-renderer",
  4868.         "yt-live-chat-ticker-paid-sticker-item-renderer",
  4869.         "yt-live-chat-ticker-renderer",
  4870.         "yt-live-chat-ticker-sponsor-item-renderer"
  4871.       ];
  4872.  
  4873.       const tagsItemRenderer = [
  4874.         "yt-live-chat-ticker-paid-message-item-renderer",
  4875.         "yt-live-chat-ticker-paid-sticker-item-renderer",
  4876.         "yt-live-chat-ticker-renderer",
  4877.         "yt-live-chat-ticker-sponsor-item-renderer"
  4878.       ];
  4879.  
  4880.  
  4881.       Promise.all(tags.map(tag => customElements.whenDefined(tag))).then(() => {
  4882.  
  4883.         mightFirstCheckOnYtInit();
  4884.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-ticker-... hacks");
  4885.         console.log("[Begin]");
  4886.  
  4887.         let dummyValueForStyleReturn = null;
  4888.  
  4889.         const genDummyValueForStyleReturn = () => {
  4890.           let s = `--nx:82;`
  4891.           let ro = {
  4892.             "privateDoNotAccessOrElseSafeStyleWrappedValue_": s,
  4893.             "implementsGoogStringTypedString": true
  4894.           };
  4895.           ro.getTypedStringValue = ro.toString = function () { return this.privateDoNotAccessOrElseSafeStyleWrappedValue_ };
  4896.           return ro;
  4897.         }
  4898.  
  4899.         let isCSSPropertySupported_ = null;
  4900.         const isCSSPropertySupported = () => {
  4901.  
  4902.           // @property --ticker-rtime
  4903.  
  4904.           if (typeof isCSSPropertySupported_ === 'boolean') return isCSSPropertySupported_;
  4905.           isCSSPropertySupported_ = false;
  4906.  
  4907.           if (typeof CSS !== 'object' || typeof (CSS || 0).registerProperty !== 'function') return false;
  4908.           const documentElement = document.documentElement;
  4909.           if (!documentElement) {
  4910.             console.warn('document.documentElement is not found');
  4911.             return false;
  4912.           }
  4913.           if (`${getComputedStyleCached(documentElement).getPropertyValue('--ticker-rtime')}`.length === 0) {
  4914.             return false;
  4915.           }
  4916.  
  4917.           const ae = animate.call(documentElement,
  4918.             [
  4919.               { '--ticker-rtime': '70%' },
  4920.               { '--ticker-rtime': '30%' }
  4921.             ],
  4922.             {
  4923.               fill: "forwards",
  4924.               duration: 1000 * 40,
  4925.               easing: 'linear'
  4926.             }
  4927.           );
  4928.  
  4929.           let animatedValue = getComputedStyleCached(document.documentElement).getPropertyValue('--ticker-rtime');
  4930.           ae.finish();
  4931.           if (`${animatedValue}`.length !== 3) return false;
  4932.  
  4933.           isCSSPropertySupported_ = true;
  4934.           return true;
  4935.  
  4936.         };
  4937.  
  4938.  
  4939.         let windowShownAt = -1;
  4940.         const setupEventForWindowShownAt = () => {
  4941.           window.addEventListener('visibilitychange', () => {
  4942.             if (document.visibilityState === 'visible') windowShownAt = Date.now();
  4943.             else windowShownAt = 0;
  4944.           }, false);
  4945.         }
  4946.  
  4947.         const dProto = {
  4948.  
  4949.           attachedForTickerInit: function () {
  4950.  
  4951.             fpTicker(this.hostElement || this);
  4952.             return this.attached77();
  4953.  
  4954.           },
  4955.  
  4956.  
  4957.           // doAnimator
  4958.  
  4959.           _makeAnimator: function () {
  4960.             if (this._r782) return;
  4961.             // if (!this.isAttached) return;
  4962.             if (!this._runnerAE) {
  4963.               /** @type {HTMLElement | null} */
  4964.               const aElement = (this.$ || 0).container;
  4965.               if (!aElement) return console.warn("this.$.container is undefined");
  4966.               const da = this.data;
  4967.               if (!da || !da.startBackgroundColor || !da.endBackgroundColor) return console.warn("this.data is undefined or incorrect");
  4968.               const c1 = this.colorFromDecimal(da.startBackgroundColor);
  4969.               const c2 = this.colorFromDecimal(da.endBackgroundColor);
  4970.               if (typeof c1 !== 'string' || typeof c2 !== 'string') return console.warn('c1, c2 is not a string');
  4971.  
  4972.               // if (!this.__tickerBackgroundInitialChecked__) {
  4973.               //   this.constructor.prototype.__tickerBackgroundInitialChecked__ = true;
  4974.               //   console.log('__tickerBackgroundInitialChecked__')
  4975.               //   this._checkTickerBackgroundChanged();
  4976.               // }
  4977.  
  4978.               aElement.style.setProperty('--ticker-c1', c1);
  4979.               aElement.style.setProperty('--ticker-c2', c2);
  4980.               aElement.classList.add(runTickerClassName);
  4981.               const p = (this.countdownMs / this.countdownDurationMs) * 100;
  4982.               // this._aeStartV = this.countdownMs;
  4983.               // this._aeStartT = this.countdownDurationMs;
  4984.               if (!(p >= 0 && p <= 100)) {
  4985.                 console.warn('incorrect time ratio', p);
  4986.               } else {
  4987.                 /*
  4988.                 const u0 = p.toFixed(4) + '%';
  4989.                 this._runnerAE = animate.call(aElement,
  4990.                   [
  4991.                     { '--ticker-rtime': u0 },
  4992.                     { '--ticker-rtime': '0%' }
  4993.                   ]
  4994.                   ,
  4995.                   {
  4996.                     fill: "forwards",
  4997.                     duration: this.countdownMs,
  4998.                     easing: "linear"
  4999.                   }
  5000.                 );
  5001.                 */
  5002.  
  5003.                 let timingFn = 'linear';
  5004.  
  5005.                 const totalDuration = this.countdownDurationMs;
  5006.  
  5007.                 if (ATTEMPT_ANIMATED_TICKER_BACKGROUND === 'steps') {
  5008.  
  5009.                   // @ step timing [min. 0.2%]
  5010.                   let stepInterval = 0.2; // unit: %
  5011.                   if (totalDuration > 400000) stepInterval = 0.2;
  5012.                   else if (totalDuration > 200000) stepInterval = 0.5;
  5013.                   else if (totalDuration > 100000) stepInterval = 1;
  5014.                   else if (totalDuration > 50000) stepInterval = 2;
  5015.                   else if (totalDuration > 25000) stepInterval = 5;
  5016.                   else stepInterval = 5;
  5017.  
  5018.                   let numOfSteps = Math.round(100 / stepInterval);
  5019.  
  5020.                   if (numOfSteps > TICKER_MAX_STEPS_LIMIT) numOfSteps = TICKER_MAX_STEPS_LIMIT;
  5021.                   if (numOfSteps < 5) numOfSteps = 5;
  5022.  
  5023.                   timingFn = `steps(${numOfSteps}, end)`;
  5024.  
  5025.                 }
  5026.  
  5027.  
  5028.                 /** @type {Animation} */
  5029.                 const ae = animate.call(aElement,
  5030.                   [
  5031.                     { '--ticker-rtime': '100%' },
  5032.                     { '--ticker-rtime': '0%' }
  5033.                   ]
  5034.                   ,
  5035.                   {
  5036.                     fill: "forwards",
  5037.                     duration: totalDuration,
  5038.                     easing: timingFn
  5039.                   }
  5040.                 );
  5041.  
  5042.                 this._runnerAE = ae;
  5043.  
  5044.                 ae.onfinish = (event) => {
  5045.                   this.onfinish = null;
  5046.                   if (this._runnerAE !== ae) return;
  5047.                   if (this.isAttached === true && !this._r782 && ((this.$ || 0).container || 0).isConnected === true) {
  5048.                     this._aeFinished(event);
  5049.                   }
  5050.                 }
  5051.  
  5052.                 let bq = (1.0 - (this.countdownMs / totalDuration)) * totalDuration;
  5053.  
  5054.                 if (bq >= 0 && bq <= totalDuration) {
  5055.  
  5056.                   if (bq > totalDuration - 1) {
  5057.                     ae.currentTime = bq;
  5058.                     // setTimeout(() => {
  5059.                     //   if (this._runnerAE === ae && ae.onfinish) ae.onfinish();
  5060.                     // }, 1);
  5061.                   } else {
  5062.                     ae.currentTime = bq;
  5063.                   }
  5064.                 } else {
  5065.                   console.warn('Error on setting _runnerAE.currentTime!');
  5066.                 }
  5067.  
  5068.  
  5069.                 aeConstructor = ae.constructor; // constructor is from iframe
  5070.                 return ae;
  5071.               }
  5072.             } else {
  5073.               if (!aeConstructor) return console.warn('aeConstructor is undefined');
  5074.               // assume just time update
  5075.               const ae = this._runnerAE;
  5076.               if (!(ae instanceof aeConstructor)) return console.warn('this._runnerAE is not Animation');
  5077.               if (ae.playState !== 'paused') console.warn('ae.playState !== paused');
  5078.               let p = (this.countdownMs / this.countdownDurationMs) * 100;
  5079.               if (!(p >= 0 && p <= 100)) {
  5080.                 console.warn('incorrect time ratio', p);
  5081.               } else {
  5082.                 // let u0 = p.toFixed(4) + '%'
  5083.                 /*
  5084.                 ae.effect.setKeyframes([
  5085.                   { '--ticker-rtime': u0 },
  5086.                   { '--ticker-rtime': '0%' }
  5087.                 ]);
  5088.                 ae.effect.updateTiming({ duration: this.countdownMs });
  5089.                 */
  5090.                 // ae.currentTime = 0;
  5091.  
  5092.  
  5093.  
  5094.                 let bq = (1.0 - (this.countdownMs / this.countdownDurationMs)) * this.countdownDurationMs;
  5095.                 if (bq >= 0 && bq <= this.countdownDurationMs) {
  5096.  
  5097.                   this._runnerAE.currentTime = bq
  5098.                 } else {
  5099.                   console.warn('Error on setting _runnerAE.currentTime!');
  5100.                 }
  5101.  
  5102.  
  5103.                 ae.play();
  5104.                 return ae;
  5105.               }
  5106.             }
  5107.           },
  5108.  
  5109.           _aeFinished: function (event) {
  5110.  
  5111.             if (this._r782) return;
  5112.  
  5113.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5114.               this._throwOut();
  5115.               return;
  5116.             }
  5117.  
  5118.             if (!this._runnerAE) console.warn('Error in .updateTimeout; this._runnerAE is undefined');
  5119.  
  5120.             let lc = window.performance.now();
  5121.             this.countdownMs = Math.max(0, this.countdownMs - (lc - this.lastCountdownTimeMs));
  5122.             if (this.countdownMs > this.countdownDurationMs) this.countdownMs = this.countdownDurationMs;
  5123.             this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = lc;
  5124.             if (this.countdownMs > 76) console.warn('Warning: this.countdownMs is not zero when finished!', this.countdownMs, this, event); // just warning.
  5125.  
  5126.             this.countdownMs = 0;
  5127.             this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = null;
  5128.  
  5129.             if (this.isAttached) {
  5130.               let fastRemoved = false;
  5131.               if (Date.now() - windowShownAt < 80 && typeof this.requestRemoval === 'function') {
  5132.                 // no animation if the video page is switched from background to foreground
  5133.                 // this.hostElement.style.display = 'none';
  5134.                 const id = (this.data || 0).id || 0;
  5135.                 if (!id) this.data = { id: 1 }
  5136.                 try {
  5137.                   this.requestRemoval();
  5138.                   fastRemoved = true;
  5139.                 } catch (e) {
  5140.  
  5141.                 }
  5142.               }
  5143.  
  5144.               if (!fastRemoved) {
  5145.                 "auto" === this.hostElement.style.width && this.setContainerWidth();
  5146.                 this.slideDown();
  5147.               }
  5148.             }
  5149.  
  5150.  
  5151.  
  5152.           },
  5153.  
  5154.  
  5155.           /** @type {()} */
  5156.           _throwOut: function () {
  5157.             this._r782 = 1;
  5158.             Promise.resolve().then(() => {
  5159.               if (typeof this.requestRemoval === 'function') {
  5160.                 const id = (this.data || 0).id;
  5161.                 if (!id) this.data = { id: 1 };
  5162.                 try {
  5163.                   this.requestRemoval();
  5164.                 } catch (e) { }
  5165.               }
  5166.               this.detached();
  5167.               if (this.__dataClientsReady === true) this.__dataClientsReady = false;
  5168.               if (this.__dataEnabled === true) this.__dataEnabled = false;
  5169.               if (this.__dataReady === true) this.__dataReady = false;
  5170.               this.data = null;
  5171.               this.countdownMs = 0;
  5172.               this.lastCountdownTimeMs = null;
  5173.               const hm = this.hostElement || this;
  5174.               if (hm.parentNode) hm.remove();
  5175.               for (let t; t = hm.firstChild;) t.remove();
  5176.             }).catch(e => {
  5177.               console.warn(e);
  5178.             });
  5179.           },
  5180.  
  5181.  
  5182.           // doTimerFnModification
  5183.  
  5184.  
  5185.           /** @type {(a, b)} */
  5186.           startCountdownForTimerFnModA: function (a, b) { // .startCountdown(a.durationSec, a.fullDurationSec)
  5187.             try {
  5188.               // a.durationSec [s] => countdownMs [ms]
  5189.               // a.fullDurationSec [s] => countdownDurationMs [ms] OR countdownMs [ms]
  5190.               // lastCountdownTimeMs => raf ongoing
  5191.               // lastCountdownTimeMs = 0 when rafId = 0 OR countdownDurationMs = 0
  5192.  
  5193.               if (this._r782) return;
  5194.  
  5195.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5196.                 this._throwOut();
  5197.                 return;
  5198.               }
  5199.  
  5200.               // TimerFnModA
  5201.  
  5202.               b = void 0 === b ? 0 : b;
  5203.               if (void 0 !== a) {
  5204.  
  5205.                 this.countdownMs = 1E3 * a; // decreasing from durationSec[s] to zero
  5206.                 this.countdownDurationMs = b ? 1E3 * b : this.countdownMs; // constant throughout the animation
  5207.                 if (!(this.lastCountdownTimeMs || this.isAnimationPaused)) {
  5208.                   this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = performance.now()
  5209.                   this.rafId = 1
  5210.                   if (this._runnerAE) console.warn('Error in .startCountdown; this._runnerAE already created.')
  5211.                   this.detlaSincePausedSecs = 0;
  5212.                   const ae = this._makeAnimator();
  5213.                   if (!ae) console.warn('Error in startCountdown._makeAnimator()');
  5214.  
  5215.                   // if (playerProgressChangedArg1 === null) {
  5216.                   //   console.log('startCountdownForTimerFnModA', this.data)
  5217.                   // }
  5218.  
  5219.                   if (isPlayProgressTriggered && this.isAnimationPaused !== true && this.__ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED__) {
  5220.  
  5221.  
  5222.  
  5223.  
  5224.                     this.playerProgressSec = lastPlayerProgress > 0 ? lastPlayerProgress : 0; // save the progress first
  5225.                     this.isAnimationPaused = true; // trigger isAnimationPausedChanged
  5226.                     this.detlaSincePausedSecs = 0;
  5227.                     this._forceNoDetlaSincePausedSecs783 = 1; // reset this.detlaSincePausedSecs = 0 when resumed
  5228.  
  5229.                     relayPromise = relayPromise || new PromiseExternal();
  5230.  
  5231.                     relayPromise.then(() => {
  5232.                       if (this.isAttached === true && this.countdownDurationMs > 0 && this.isAnimationPaused === true && this.isReplayPaused !== true) {
  5233.                         this.isAnimationPaused = false;
  5234.                       }
  5235.                     });
  5236.  
  5237.  
  5238.                   }
  5239.  
  5240.  
  5241.  
  5242.                 }
  5243.               }
  5244.  
  5245.             } catch (e) {
  5246.               console.warn(e);
  5247.             }
  5248.  
  5249.           },
  5250.  
  5251.  
  5252.  
  5253.           /** @type {(a, b)} */
  5254.           startCountdownForTimerFnModT: function (a, b) { // .startCountdown(a.durationSec, a.fullDurationSec)
  5255.             try {
  5256.               // a.durationSec [s] => countdownMs [ms]
  5257.               // a.fullDurationSec [s] => countdownDurationMs [ms] OR countdownMs [ms]
  5258.               // lastCountdownTimeMs => raf ongoing
  5259.               // lastCountdownTimeMs = 0 when rafId = 0 OR countdownDurationMs = 0
  5260.  
  5261.               if (this._r782) return;
  5262.  
  5263.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5264.                 this._throwOut();
  5265.                 return;
  5266.               }
  5267.  
  5268.               // TimerFnModT
  5269.  
  5270.               // console.log('cProto.startCountdown', tag) // yt-live-chat-ticker-sponsor-item-renderer
  5271.               if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
  5272.               b = void 0 === b ? 0 : b;
  5273.               void 0 !== a && (this.countdownMs = 1E3 * a,
  5274.                 this.countdownDurationMs = b ? 1E3 * b : this.countdownMs,
  5275.                 this.ratio = 1,
  5276.                 this.lastCountdownTimeMs || this.isAnimationPaused || (this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = performance.now(),
  5277.                   this.rafId = rafHub.request(this.boundUpdateTimeout37_)))
  5278.  
  5279.             } catch (e) {
  5280.               console.warn(e);
  5281.             }
  5282.  
  5283.           },
  5284.  
  5285.  
  5286.           /** @type {(a,)} */
  5287.           updateTimeoutForTimerFnModA: function (a) {
  5288.  
  5289.             try {
  5290.  
  5291.               // _lastCountdownTimeMsX0 is required since performance.now() is not fully the same with rAF timestamp
  5292.  
  5293.               if (this._r782) return;
  5294.  
  5295.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5296.                 this._throwOut();
  5297.                 return;
  5298.               }
  5299.  
  5300.               // TimerFnModA
  5301.  
  5302.               if (!this._runnerAE) console.warn('Error in .updateTimeout; this._runnerAE is undefined');
  5303.               if (this.lastCountdownTimeMs !== this._lastCountdownTimeMsX0) {
  5304.                 this.countdownMs = Math.max(0, this.countdownMs - (a - (this.lastCountdownTimeMs || 0)));
  5305.               }
  5306.               if (this.countdownMs > this.countdownDurationMs) this.countdownMs = this.countdownDurationMs;
  5307.               if (this.isAttached && this.countdownMs) {
  5308.                 this.lastCountdownTimeMs = a
  5309.                 const ae = this._makeAnimator(); // request raf
  5310.                 if (!ae) console.warn('Error in startCountdown._makeAnimator()');
  5311.               } else {
  5312.                 (this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = null,
  5313.                   this.isAttached && ("auto" === this.hostElement.style.width && this.setContainerWidth(),
  5314.                     this.slideDown()));
  5315.               }
  5316.  
  5317.             } catch (e) {
  5318.               console.warn(e);
  5319.             }
  5320.  
  5321.  
  5322.           },
  5323.  
  5324.           /** @type {(a,)} */
  5325.           updateTimeoutForTimerFnModT: function (a) {
  5326.  
  5327.             try {
  5328.  
  5329.               // _lastCountdownTimeMsX0 is required since performance.now() is not fully the same with rAF timestamp
  5330.  
  5331.               if (this._r782) return;
  5332.  
  5333.               if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5334.                 this._throwOut();
  5335.                 return;
  5336.               }
  5337.  
  5338.               // TimerFnModT
  5339.  
  5340.               // console.log('cProto.updateTimeout', tag) // yt-live-chat-ticker-sponsor-item-renderer
  5341.               if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
  5342.               if (this.lastCountdownTimeMs !== this._lastCountdownTimeMsX0) {
  5343.                 this.countdownMs = Math.max(0, this.countdownMs - (a - (this.lastCountdownTimeMs || 0)));
  5344.               }
  5345.               // console.log(703, this.countdownMs)
  5346.               this.ratio = this.countdownMs / this.countdownDurationMs;
  5347.               this.isAttached && this.countdownMs ? (this.lastCountdownTimeMs = a,
  5348.                 this.rafId = rafHub.request(this.boundUpdateTimeout37_)) : (this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = null,
  5349.                   this.isAttached && ("auto" === this.hostElement.style.width && this.setContainerWidth(),
  5350.                     this.slideDown()))
  5351.  
  5352.  
  5353.             } catch (e) {
  5354.               console.warn(e);
  5355.             }
  5356.           },
  5357.  
  5358.           /** @type {(a,b)} */
  5359.           isAnimationPausedChangedForTimerFnModA: function (a, b) {
  5360.  
  5361.             if (this._r782) return;
  5362.  
  5363.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5364.               this._throwOut();
  5365.               return;
  5366.             }
  5367.             let forceNoDetlaSincePausedSecs783 = this._forceNoDetlaSincePausedSecs783;
  5368.             this._forceNoDetlaSincePausedSecs783 = 0;
  5369.  
  5370.             Promise.resolve().then(() => {
  5371.  
  5372.               if (a) {
  5373.  
  5374.                 if (this._runnerAE && this._runnerAE.playState === 'running') {
  5375.  
  5376.                   this._runnerAE.pause()
  5377.                   let lc = window.performance.now();
  5378.                   this.countdownMs = Math.max(0, this.countdownMs - (lc - this.lastCountdownTimeMs));
  5379.                   if (this.countdownMs > this.countdownDurationMs) this.countdownMs = this.countdownDurationMs;
  5380.                   this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = lc;
  5381.                 }
  5382.  
  5383.               } else if (!a && b) {
  5384.  
  5385.  
  5386.                 if (forceNoDetlaSincePausedSecs783) this.detlaSincePausedSecs = 0;
  5387.                 a = this.detlaSincePausedSecs ? (this.lastCountdownTimeMs || 0) + 1000 * this.detlaSincePausedSecs : (this.lastCountdownTimeMs || 0);
  5388.                 this.detlaSincePausedSecs = 0;
  5389.                 this.updateTimeout(a);
  5390.                 this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = window.performance.now();
  5391.  
  5392.               }
  5393.  
  5394.  
  5395.             }).catch(e => {
  5396.               console.log(e);
  5397.             });
  5398.  
  5399.  
  5400.  
  5401.           },
  5402.  
  5403.  
  5404.           /** @type {(a,b)} */
  5405.           isAnimationPausedChangedForTimerFnModT: function (a, b) {
  5406.  
  5407.             if (this._r782) return;
  5408.  
  5409.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5410.               this._throwOut();
  5411.               return;
  5412.             }
  5413.             let forceNoDetlaSincePausedSecs783 = this._forceNoDetlaSincePausedSecs783;
  5414.             this._forceNoDetlaSincePausedSecs783 = 0;
  5415.  
  5416.             Promise.resolve().then(() => {
  5417.  
  5418.               // TimerFnModT
  5419.  
  5420.               // ez++;
  5421.               // if(ez> 1e9) ez=9;
  5422.               if (!this.boundUpdateTimeout37_) this.boundUpdateTimeout37_ = this.updateTimeout.bind(this);
  5423.               a ? rafHub.cancel(this.rafId) : !a && b && (a = this.lastCountdownTimeMs || 0,
  5424.                 this.detlaSincePausedSecs && (a = (this.lastCountdownTimeMs || 0) + 1E3 * this.detlaSincePausedSecs,
  5425.                   this.detlaSincePausedSecs = 0),
  5426.                 this.boundUpdateTimeout37_(a),
  5427.                 this.lastCountdownTimeMs = this._lastCountdownTimeMsX0 = window.performance.now())
  5428.  
  5429.  
  5430.             }).catch(e => {
  5431.               console.log(e);
  5432.             });
  5433.  
  5434.  
  5435.  
  5436.           },
  5437.  
  5438.  
  5439.           /** @type {(a,b)} */
  5440.           computeContainerStyleForAnimatorEnabled: function (a, b) {
  5441.  
  5442.             if (this._r782) return;
  5443.  
  5444.             if (this.isAttached === false && ((this.$ || 0).container || 0).isConnected === false) {
  5445.               this._throwOut();
  5446.               return;
  5447.             }
  5448.  
  5449.             return (dummyValueForStyleReturn || (dummyValueForStyleReturn = genDummyValueForStyleReturn()));
  5450.  
  5451.           },
  5452.  
  5453.  
  5454.  
  5455.           /** @type {()} */
  5456.           handlePauseReplayForPlaybackProgressState: function () {
  5457.             if (!playerEventsByIframeRelay) return this.handlePauseReplay66.apply(this, arguments);
  5458.  
  5459.             if (onPlayStateChangePromise) {
  5460.  
  5461.               if (this.rtu > 1e9) this.rtu = this.rtu % 1e4;
  5462.               const tid = ++this.rtu;
  5463.  
  5464.               onPlayStateChangePromise.then(() => {
  5465.                 if (tid === this.rtu && !onPlayStateChangePromise) this.handlePauseReplay.apply(this, arguments);
  5466.               });
  5467.  
  5468.               return;
  5469.             }
  5470.  
  5471.             if (playerState !== 2) return;
  5472.             if (this.isAttached) {
  5473.               if (this.rtk > 1e9) this.rtk = this.rtk % 1e4;
  5474.               const tid = ++this.rtk;
  5475.               const tc = relayCount;
  5476.               foregroundPromiseFn().then(() => {
  5477.                 if (tid === this.rtk && tc === relayCount && playerState === 2 && _playerState === playerState) {
  5478.                   this.handlePauseReplay66();
  5479.                 }
  5480.  
  5481.               })
  5482.             }
  5483.           },
  5484.  
  5485.           /** @type {()} */
  5486.           handleResumeReplayForPlaybackProgressState: function () {
  5487.             if (!playerEventsByIframeRelay) return this.handleResumeReplay66.apply(this, arguments);
  5488.  
  5489.  
  5490.             if (onPlayStateChangePromise) {
  5491.  
  5492.               if (this.rtv > 1e9) this.rtv = this.rtv % 1e4;
  5493.               const tid = ++this.rtv;
  5494.  
  5495.               onPlayStateChangePromise.then(() => {
  5496.                 if (tid === this.rtv && !onPlayStateChangePromise) this.handleResumeReplay.apply(this, arguments);
  5497.               });
  5498.  
  5499.               return;
  5500.             }
  5501.  
  5502.  
  5503.             if (playerState !== 1) return;
  5504.             if (this.isAttached) {
  5505.               const tc = relayCount;
  5506.  
  5507.               relayPromise = relayPromise || new PromiseExternal();
  5508.               relayPromise.then(() => {
  5509.                 if (relayCount > tc && playerState === 1 && _playerState === playerState) {
  5510.                   this.handleResumeReplay66();
  5511.                 }
  5512.               });
  5513.             }
  5514.           },
  5515.  
  5516.           /** @type {(a,)} */
  5517.           handleReplayProgressForPlaybackProgressState: function (a) {
  5518.             if (this.isAttached) {
  5519.               const tid = ++this.rtk;
  5520.               foregroundPromiseFn().then(() => {
  5521.                 if (tid === this.rtk) {
  5522.                   this.handleReplayProgress66(a);
  5523.                 }
  5524.               })
  5525.             }
  5526.           }
  5527.  
  5528.  
  5529.         }
  5530.  
  5531.  
  5532.         for (const tag of tagsItemRenderer) { // ##tag##
  5533.           const dummy = document.createElement(tag);
  5534.  
  5535.           const cProto = getProto(dummy);
  5536.           if (!cProto || !cProto.attached) {
  5537.             console.warn(`proto.attached for ${tag} is unavailable.`);
  5538.             continue;
  5539.           }
  5540.  
  5541.           cProto.attached77 = cProto.attached;
  5542.  
  5543.           cProto.attached = dProto.attachedForTickerInit;
  5544.  
  5545.           let rafHackState = 0;
  5546.  
  5547.           let isTimingFunctionHackable = false;
  5548.  
  5549.           let urt = 0;
  5550.  
  5551.           if (typeof cProto.startCountdown === 'function' && typeof cProto.updateTimeout === 'function' && typeof cProto.isAnimationPausedChanged === 'function') {
  5552.  
  5553.             // console.log('startCountdown', typeof cProto.startCountdown)
  5554.             // console.log('updateTimeout', typeof cProto.updateTimeout)
  5555.             // console.log('isAnimationPausedChanged', typeof cProto.isAnimationPausedChanged)
  5556.  
  5557.             isTimingFunctionHackable = fnIntegrity(cProto.startCountdown, '2.66.37') && fnIntegrity(cProto.updateTimeout, '1.76.45') && fnIntegrity(cProto.isAnimationPausedChanged, '2.56.30')
  5558.  
  5559.           } else {
  5560.             console.log("ATTEMPT_ANIMATED_TICKER_BACKGROUND", ` ${tag}`, "Skip Timing Function Modification");
  5561.             continue;
  5562.           }
  5563.  
  5564.  
  5565.           if (ENABLE_RAF_HACK_TICKERS && rafHub !== null) {
  5566.  
  5567.             // cancelable - this.rafId < isAnimationPausedChanged >
  5568.             rafHackState = 1;
  5569.  
  5570.             if (isTimingFunctionHackable) {
  5571.               rafHackState = 2;
  5572.  
  5573.             } else {
  5574.               rafHackState = 4;
  5575.             }
  5576.  
  5577.           }
  5578.  
  5579.           const doAnimator = !!ATTEMPT_ANIMATED_TICKER_BACKGROUND && isTimingFunctionHackable && typeof KeyframeEffect === 'function' && typeof animate === 'function' && typeof cProto.computeContainerStyle === 'function' && typeof cProto.colorFromDecimal === 'function' && isCSSPropertySupported();
  5580.  
  5581.           const doRAFHack = rafHackState === 2;
  5582.  
  5583.           cProto._throwOut = dProto._throwOut;
  5584.  
  5585.           cProto._makeAnimator = doAnimator ? dProto._makeAnimator : null;
  5586.  
  5587.           cProto._aeFinished = doAnimator ? dProto._aeFinished : null;
  5588.  
  5589.  
  5590.           if (ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX) {
  5591.  
  5592.  
  5593.  
  5594.             if (typeof cProto.handlePauseReplay === 'function' && !cProto.handlePauseReplay66 && cProto.handlePauseReplay.length === 0) {
  5595.               urt++;
  5596.               assertor(() => fnIntegrity(cProto.handlePauseReplay, '0.12.4'));
  5597.             } else {
  5598.               console.log('Error for setting cProto.handlePauseReplay', tag)
  5599.             }
  5600.  
  5601.             if (typeof cProto.handleResumeReplay === 'function' && !cProto.handleResumeReplay66 && cProto.handlePauseReplay.length === 0) {
  5602.               urt++;
  5603.               assertor(() => fnIntegrity(cProto.handleResumeReplay, '0.8.2'));
  5604.             } else {
  5605.               console.log('Error for setting cProto.handleResumeReplay', tag)
  5606.             }
  5607.  
  5608.             if (typeof cProto.handleReplayProgress === 'function' && !cProto.handleReplayProgress66 && cProto.handleReplayProgress.length === 1) {
  5609.               urt++;
  5610.               assertor(() => fnIntegrity(cProto.handleReplayProgress, '1.16.13'));
  5611.             } else {
  5612.               console.log('Error for setting cProto.handleReplayProgress', tag)
  5613.             }
  5614.  
  5615.  
  5616.  
  5617.           }
  5618.  
  5619.           const ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED = ENABLE_VIDEO_PLAYBACK_PROGRESS_STATE_FIX && urt === 3;
  5620.           cProto.__ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED__ = ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED;
  5621.  
  5622.           if (ENABLE_VIDEO_PROGRESS_STATE_FIX_AND_URT_PASSED) {
  5623.  
  5624.             cProto.rtk = 0;
  5625.             cProto.rtu = 0;
  5626.             cProto.rtv = 0;
  5627.  
  5628.             cProto.handlePauseReplay66 = cProto.handlePauseReplay;
  5629.             cProto.handlePauseReplay = dProto.handlePauseReplayForPlaybackProgressState;
  5630.  
  5631.             cProto.handleResumeReplay66 = cProto.handleResumeReplay;
  5632.             cProto.handleResumeReplay = dProto.handleResumeReplayForPlaybackProgressState;
  5633.  
  5634.             cProto.handleReplayProgress66 = cProto.handleReplayProgress;
  5635.             cProto.handleReplayProgress = dProto.handleReplayProgressForPlaybackProgressState;
  5636.  
  5637.           }
  5638.  
  5639.           const doTimerFnModification = (doRAFHack || doAnimator);
  5640.  
  5641.           if (doAnimator && windowShownAt < 0) {
  5642.             windowShownAt = 0;
  5643.             setupEventForWindowShownAt();
  5644.           }
  5645.  
  5646.           if (doTimerFnModification) {
  5647.  
  5648.             cProto.startCountdown = (
  5649.               doAnimator ? dProto.startCountdownForTimerFnModA : dProto.startCountdownForTimerFnModT
  5650.             );
  5651.  
  5652.             // _lastCountdownTimeMsX0 is required since performance.now() is not fully the same with rAF timestamp
  5653.             cProto.updateTimeout = (
  5654.               doAnimator ? dProto.updateTimeoutForTimerFnModA : dProto.updateTimeoutForTimerFnModT
  5655.             );
  5656.  
  5657.  
  5658.             // let ez = 0;
  5659.             cProto.isAnimationPausedChanged = (
  5660.               doAnimator ? dProto.isAnimationPausedChangedForTimerFnModA : dProto.isAnimationPausedChangedForTimerFnModT
  5661.             );
  5662.  
  5663.           }
  5664.  
  5665.           if (doAnimator) {
  5666.  
  5667.             const s = fnIntegrity(cProto.computeContainerStyle);
  5668.             // 2.44.29 or 2.81.31
  5669.             if (s === '2.44.29' || s === '2.81.31') {
  5670.  
  5671.               //     var ofb = da([""])
  5672.               //         pfb = da("background:linear-gradient(90deg, {,{ {,{ {,{);".split("{"))
  5673.  
  5674.               // f.computeContainerStyle = function(a, b) {
  5675.               //     if (!a)
  5676.               //         return pi(ofb);
  5677.               //     var c = this.colorFromDecimal(a.startBackgroundColor);
  5678.               //     a = this.colorFromDecimal(a.endBackgroundColor);
  5679.               //     b = 100 * b + "%";
  5680.               //     return pi(pfb, c, c, b, a, b, a)
  5681.               // }
  5682.  
  5683.             } else {
  5684.               assertor(() => fnIntegrity(cProto.computeContainerStyle, '2.44.29'));
  5685.             }
  5686.  
  5687.             cProto.computeContainerStyle66 = cProto.computeContainerStyle;
  5688.  
  5689.             cProto.computeContainerStyle = dProto.computeContainerStyleForAnimatorEnabled;
  5690.  
  5691.           }
  5692.  
  5693.           if (doTimerFnModification === true) hasTimerModified = true;
  5694.  
  5695.           if (!!ATTEMPT_ANIMATED_TICKER_BACKGROUND) {
  5696.             console.log('ATTEMPT_ANIMATED_TICKER_BACKGROUND', tag, doAnimator ? 'OK' : 'NG');
  5697.           }
  5698.  
  5699.           if (!doAnimator && (rafHackState === 2 || rafHackState === 4)) {
  5700.             console.log('RAF_HACK_TICKERS', tag, doRAFHack ? "OK" : "NG");
  5701.           }
  5702.  
  5703.         }
  5704.  
  5705.         const selector = tags.join(', ');
  5706.         const elements = document.querySelectorAll(selector);
  5707.         if (elements.length >= 1) {
  5708.           for (const elm of elements) {
  5709.             if (insp(elm).isAttached === true) {
  5710.               fpTicker(elm);
  5711.             }
  5712.           }
  5713.         }
  5714.  
  5715.         console.log("[End]");
  5716.         console.groupEnd();
  5717.  
  5718.  
  5719.       }).catch(console.warn);
  5720.  
  5721.       customElements.whenDefined('yt-live-chat-ticker-renderer').then(() => {
  5722.  
  5723.         mightFirstCheckOnYtInit();
  5724.         groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-ticker-renderer hacks");
  5725.         console.log("[Begin]");
  5726.         (() => {
  5727.  
  5728.           /* pending!!
  5729.  
  5730.           handleLiveChatAction
  5731.  
  5732.           removeTickerItemById
  5733.  
  5734.           _itemsChanged
  5735.           itemsChanged
  5736.  
  5737.           handleMarkChatItemAsDeletedAction
  5738.           handleMarkChatItemsByAuthorAsDeletedAction
  5739.           handleRemoveChatItemByAuthorAction
  5740.  
  5741.  
  5742.           */
  5743.  
  5744.           const tag = "yt-live-chat-ticker-renderer"
  5745.           const dummy = document.createElement(tag);
  5746.  
  5747.           const cProto = getProto(dummy);
  5748.           if (!cProto || !cProto.attached) {
  5749.             console.warn(`proto.attached for ${tag} is unavailable.`);
  5750.             return;
  5751.           }
  5752.  
  5753.           if (AMEND_TICKER_handleLiveChatAction
  5754.             && typeof cProto.handleLiveChatAction === 'function' && !cProto.handleLiveChatAction45 && '|1.63.48|1.64.48|'.includes(`|${fnIntegrity(cProto.handleLiveChatAction)}|`)
  5755.             && typeof cProto.handleLiveChatActions === 'function' && !cProto.handleLiveChatActions45 && fnIntegrity(cProto.handleLiveChatActions) === '1.23.12'
  5756.             && typeof cProto.unshift === 'function' && cProto.unshift.length === 1
  5757.             && typeof cProto.handleMarkChatItemAsDeletedAction === 'function' && cProto.handleMarkChatItemAsDeletedAction.length === 1
  5758.             && typeof cProto.removeTickerItemById === 'function' && cProto.removeTickerItemById.length === 1
  5759.             && typeof cProto.handleMarkChatItemsByAuthorAsDeletedAction === 'function' && cProto.handleMarkChatItemsByAuthorAsDeletedAction.length === 1
  5760.             && typeof cProto.handleRemoveChatItemByAuthorAction === 'function' && cProto.handleRemoveChatItemByAuthorAction.length === 1
  5761.           ) {
  5762.  
  5763.             cProto.handleLiveChatActions45 = cProto.handleLiveChatActions;
  5764.  
  5765.             cProto.handleLiveChatActions = function (a) {
  5766.               /**
  5767.                *
  5768.                   f.handleLiveChatActions = function(a) {
  5769.                       a.length && (a.forEach(this.handleLiveChatAction, this),
  5770.                       this.updateHighlightedItem(),
  5771.                       this.shouldAnimateIn = !0)
  5772.                   }
  5773.                *
  5774.                */
  5775.  
  5776.               if (a.length) {
  5777.                 const batchToken = String.fromCharCode(Date.now() % 26 + 97) + Math.floor(Math.random() * 19861 + 19861).toString(36);
  5778.                 const len = a.length;
  5779.                 if (FIX_BATCH_TICKER_ORDER && len >= 2) {
  5780.                   // Primarily for the initial batch, this is due to replayBuffer._back.
  5781.                   const entries = [];
  5782.                   const entriesI = [];
  5783.                   for (let i = 0; i < len; i++) {
  5784.                     const item = ((a[i] || 0).addLiveChatTickerItemAction || 0).item || 0;
  5785.                     if (item) {
  5786.                       const itemRendererKey = firstObjectKey(item);
  5787.                       const itemRenderer = item[itemRendererKey];
  5788.                       if (itemRenderer) {
  5789.                         let timestampUsec = getTimestampUsec(itemRenderer);
  5790.                         if (timestampUsec !== null) {
  5791.                           timestampUsec = parseInt(timestampUsec);
  5792.                           if (timestampUsec > 0) {
  5793.                             entriesI.push(i);
  5794.                             entries.push({ e: a[i], timestampUsec })
  5795.                           }
  5796.                         }
  5797.                       }
  5798.                     }
  5799.                   }
  5800.                   const mLen = entries.length;
  5801.                   if (mLen >= 2) {
  5802.                     entries.sort((a, b) => {
  5803.                       const diff = a.timestampUsec - b.timestampUsec;
  5804.                       return diff > 0.1 ? 1 : diff < -0.1 ? -1 : 0;
  5805.                     });
  5806.                     for (let j = 0; j < mLen; j++) {
  5807.                       const i = entriesI[j];
  5808.                       a[i] = entries[j].e;
  5809.                     }
  5810.                   }
  5811.                   entries.length = 0;
  5812.                   entriesI.length = 0;
  5813.                 }
  5814.                 for (const action of a) {
  5815.                   action.__batchId45__ = batchToken;
  5816.                   this.handleLiveChatAction(action);
  5817.                 }
  5818.               }
  5819.             }
  5820.  
  5821.             cProto.handleLiveChatAction45 = cProto.handleLiveChatAction;
  5822.  
  5823.  
  5824.  
  5825.             cProto._nszlv_ = 0;
  5826.             cProto._stackedLCAs_ = null;
  5827.             cProto._lastAddItem_ = null;
  5828.             cProto._lastAddItemInStack_ = false;
  5829.             cProto.handleLiveChatAction = function (a) {
  5830.  
  5831.  
  5832.               /**
  5833.                *
  5834.                *
  5835.                 f.handleLiveChatAction = function(a) {
  5836.                     var b = C(a, xO)
  5837.                       , c = C(a, yO)
  5838.                       , d = C(a, o1a)
  5839.                       , e = C(a, p1a);
  5840.                     a = C(a, A1a);
  5841.                     b ? this.unshift("items", b.item) : c ? this.handleMarkChatItemAsDeletedAction(c) : d ? this.removeTickerItemById(d.targetItemId) : e ? this.handleMarkChatItemsByAuthorAsDeletedAction(e) : a && this.handleRemoveChatItemByAuthorAction(a)
  5842.                 }
  5843.                *
  5844.                */
  5845.  
  5846.               // return this.handleLiveChatAction45(a)
  5847.               const { addChatItemAction, addLiveChatTickerItemAction, markChatItemAsDeletedAction,
  5848.                 removeChatItemAction, markChatItemsByAuthorAsDeletedAction, removeChatItemByAuthorAction, __batchId45__ } = a
  5849.  
  5850.               if (addChatItemAction) return;
  5851.  
  5852.  
  5853.               const d = Date.now();
  5854.  
  5855.  
  5856.               // console.log(Object.keys(a));
  5857.  
  5858.               if (this._stackedLCAs_ === null) this._stackedLCAs_ = [];
  5859.               const stackArr = this._stackedLCAs_;
  5860.               let newStackEntry = null;
  5861.               if (addLiveChatTickerItemAction) {
  5862.                 let isDuplicated = false;
  5863.  
  5864.                 const newItem = addLiveChatTickerItemAction.item;
  5865.                 const tickerType = firstObjectKey(newItem);
  5866.                 if (!tickerType) return;
  5867.                 const tickerItem = newItem[tickerType];
  5868.                 const tickerId = tickerItem.id;
  5869.                 if (!tickerId) return;
  5870.  
  5871.                 if (this._lastAddItem_ && this._lastAddItem_.id === tickerId) {
  5872.                   let prevTickerItem = null;
  5873.                   if (this._lastAddItemInStack_) {
  5874.                     const entry = stackArr[stackArr.length - 1]; // only consider the last entry
  5875.                     if (entry && entry.action === 'addItem') {
  5876.                       prevTickerItem = entry.data; // only consider the first item;
  5877.                     }
  5878.                   } else {
  5879.                     prevTickerItem = this.items[0]; // only consider the first item;
  5880.                   }
  5881.                   if (prevTickerItem && prevTickerItem[tickerType]) {
  5882.                     if (prevTickerItem[tickerType].id === tickerId) {
  5883.                       isDuplicated = true;
  5884.                     }
  5885.                   }
  5886.                 }
  5887.                 if (!isDuplicated) {
  5888.                   this._lastAddItem_ = tickerItem;
  5889.                   this._lastAddItemInStack_ = true;
  5890.                   // console.log('newItem', newItem)
  5891.  
  5892.                   const item = newItem;
  5893.                   const key = firstObjectKey(item);
  5894.                   if (key) {
  5895.                     const itemRenderer = item[key] || 0;
  5896.                     if (itemRenderer.fullDurationSec > 0) {
  5897.                       itemRenderer.__actionAt__ = d;
  5898.                     }
  5899.                   }
  5900.  
  5901.  
  5902.                   newStackEntry = { action: 'addItem', data: newItem };
  5903.  
  5904.                 } else {
  5905.                   console.log('handleLiveChatAction Repeated Item', tickerItem.id, tickerItem); // happen in both live and playback. Reason Unknown.
  5906.                   return;
  5907.                 }
  5908.  
  5909.               } else {
  5910.                 markChatItemAsDeletedAction && (newStackEntry = { action: 'mcItemD', data: markChatItemAsDeletedAction });
  5911.                 removeChatItemAction && (newStackEntry = { action: 'removeItemById', data: removeChatItemAction.targetId });
  5912.                 markChatItemsByAuthorAsDeletedAction && (newStackEntry = { action: 'mcItemAD', data: markChatItemsByAuthorAsDeletedAction });
  5913.                 removeChatItemByAuthorAction && (newStackEntry = { action: 'removeItemA', data: removeChatItemByAuthorAction })
  5914.               }
  5915.  
  5916.  
  5917.               if (!newStackEntry) return;
  5918.               stackArr.push(newStackEntry);
  5919.  
  5920.  
  5921.               this._nszlv_++;
  5922.               if (this._nszlv_ > 1e9) this._nszlv_ = 9;
  5923.               const tid = this._nszlv_;
  5924.  
  5925.               newStackEntry.__batchId45__ = __batchId45__ || '';
  5926.               newStackEntry.dateTime = Date.now();
  5927.  
  5928.  
  5929.               foregroundPromiseFn().then(() => {
  5930.  
  5931.                 if (tid !== this._nszlv_) return;
  5932.                 const dateNow = Date.now(); // time difference to shift animation start time shall be considered. (pending)
  5933.                 const stackArr = this._stackedLCAs_.slice(0);
  5934.                 this._stackedLCAs_.length = 0;
  5935.                 this._lastAddItemInStack_ = false;
  5936.                 let lastDateTime = 0;
  5937.                 let prevBatchId = '';
  5938.                 const addItems = [];
  5939.                 // const previousShouldAnimateIn = this.shouldAnimateIn;
  5940.  
  5941.                 const addItemsFx = () => {
  5942.  
  5943.                   if (addItems.length >= 1) {
  5944.                     const eArr = addItems.slice(0);
  5945.                     addItems.length = 0;
  5946.                     if (ADJUST_TICKER_DURATION_ALIGN_RENDER_TIME) {
  5947.  
  5948.                       const arr = []; // size of arr <= size of eArr
  5949.                       const d = Date.now();
  5950.                       for (const item of eArr) {
  5951.                         const key = firstObjectKey(item);
  5952.                         if (key) {
  5953.  
  5954.  
  5955.                           const itemRenderer = item[key] || 0;
  5956.                           const { durationSec, fullDurationSec, __actionAt__ } = itemRenderer;
  5957.                           if (__actionAt__ > 0 && durationSec > 0 && fullDurationSec > 0) {
  5958.  
  5959.  
  5960.                             const offset = d - __actionAt__;
  5961.                             if (offset > 0 && typeof durationSec === 'number' && typeof fullDurationSec === 'number' && fullDurationSec >= durationSec) {
  5962.                               const adjustedDurationSec = durationSec - Math.floor(offset / 1000);
  5963.                               if (adjustedDurationSec < durationSec) { // prevent NaN
  5964.                                 // console.log('adjustedDurationSec', adjustedDurationSec);
  5965.                                 if (adjustedDurationSec > 0) {
  5966.                                   // console.log('offset Sec', Math.floor(offset / 1000));
  5967.                                   itemRenderer.durationSec = adjustedDurationSec;
  5968.                                 } else {
  5969.                                   // if adjustedDurationSec equal 0 or invalid
  5970.                                   continue; // skip adding
  5971.                                 }
  5972.                               }
  5973.  
  5974.                             }
  5975.  
  5976.                           }
  5977.  
  5978.                           if (fullDurationSec > 0 && durationSec < 1) continue; // fallback check
  5979.  
  5980.  
  5981.  
  5982.                         }
  5983.                         arr.push(item)
  5984.                         // arr.unshift(item);
  5985.                       }
  5986.  
  5987.  
  5988.                       // console.log(arr.slice(0))
  5989.                       this.unshift("items", ...arr);
  5990.                     } else {
  5991.                       this.unshift("items", ...eArr);
  5992.                     }
  5993.                   }
  5994.                 }
  5995.  
  5996.                 for (const entry of stackArr) {
  5997.  
  5998.                   const { action, data, dateTime, __batchId45__ } = entry;
  5999.  
  6000.                   const finishLastAction = (
  6001.                     (prevBatchId !== __batchId45__ && prevBatchId)
  6002.                     || (dateNow - lastDateTime >= 1000 && dateNow - dateTime < 1000)
  6003.                   );
  6004.  
  6005.                   const addPrevItems = addItems.length >= 1 && (finishLastAction || action !== 'addItem');
  6006.                   lastDateTime = dateTime;
  6007.                   prevBatchId = __batchId45__;
  6008.  
  6009.                   // if (dateNow - dateTime >= 1000 && this.shouldAnimateIn) this.shouldAnimateIn = false;
  6010.  
  6011.  
  6012.                   if (addPrevItems) {
  6013.                     addItemsFx();
  6014.                   }
  6015.                   // if (finishLastAction) {
  6016.                   //   this.updateHighlightedItem();
  6017.                   //   if (!this.shouldAnimateIn) this.shouldAnimateIn = true;
  6018.                   // }
  6019.  
  6020.  
  6021.                   if (action === 'addItem') addItems.unshift(data);
  6022.                   else if (action === 'mcItemD') this.handleMarkChatItemAsDeletedAction(data);
  6023.                   else if (action === 'removeItemById') this.removeTickerItemById(data);
  6024.                   else if (action === 'mcItemAD') this.handleMarkChatItemsByAuthorAsDeletedAction(data);
  6025.                   else if (action === 'removeItemA') this.handleRemoveChatItemByAuthorAction(data);
  6026.  
  6027.                 }
  6028.  
  6029.  
  6030.                 // if (previousShouldAnimateIn && !this.shouldAnimateIn) this.shouldAnimateIn = true;
  6031.  
  6032.                 addItemsFx();
  6033.  
  6034.                 // if (prevBatchId || dateNow - lastDateTime >= 1000) {
  6035.                 //   this.updateHighlightedItem();
  6036.                 //   if (!this.shouldAnimateIn) this.shouldAnimateIn = true;
  6037.                 // }
  6038.  
  6039.               })
  6040.  
  6041.             }
  6042.  
  6043.             console.log("AMEND_TICKER_handleLiveChatAction - OK");
  6044.           } else {
  6045.             console.log("AMEND_TICKER_handleLiveChatAction - NG");
  6046.           }
  6047.  
  6048.           if (RAF_FIX_keepScrollClamped) {
  6049.  
  6050.             // to be improved
  6051.  
  6052.             if (typeof cProto.keepScrollClamped === 'function' && !cProto.keepScrollClamped72 && fnIntegrity(cProto.keepScrollClamped) === '0.17.10') {
  6053.  
  6054.               cProto.keepScrollClamped72 = cProto.keepScrollClamped;
  6055.               cProto.keepScrollClamped = function () {
  6056.                 this._bound_keepScrollClamped = this._bound_keepScrollClamped || this.keepScrollClamped.bind(this);
  6057.                 this.scrollClampRaf = requestAnimationFrame(this._bound_keepScrollClamped);
  6058.                 this.maybeClampScroll()
  6059.               }
  6060.  
  6061.               console.log('RAF_FIX: keepScrollClamped', tag, "OK")
  6062.             } else {
  6063.  
  6064.               assertor(() => fnIntegrity(cProto.keepScrollClamped, '0.17.10'));
  6065.               console.log('RAF_FIX: keepScrollClamped', tag, "NG")
  6066.             }
  6067.  
  6068.           }
  6069.  
  6070.  
  6071.           if (RAF_FIX_scrollIncrementally && typeof cProto.startScrolling === 'function' && typeof cProto.scrollIncrementally === 'function' && fnIntegrity(cProto.startScrolling) === '1.43.31' && fnIntegrity(cProto.scrollIncrementally) === '1.82.43') {
  6072.             // to be replaced by animator
  6073.  
  6074.             cProto.startScrolling = function (a) {
  6075.               this.scrollStopHandle && this.cancelAsync(this.scrollStopHandle);
  6076.               this.asyncHandle && cancelAnimationFrame(this.asyncHandle);
  6077.               this.lastFrameTimestamp = this.scrollStartTime = performance.now();
  6078.               this.scrollRatePixelsPerSecond = a;
  6079.               this._bound_scrollIncrementally = this._bound_scrollIncrementally || this.scrollIncrementally.bind(this);
  6080.               this.asyncHandle = requestAnimationFrame(this._bound_scrollIncrementally)
  6081.             };
  6082.  
  6083.             // related functions: startScrollBack, startScrollingLeft, startScrollingRight, etc.
  6084.  
  6085.             cProto.scrollIncrementally = (RAF_FIX_scrollIncrementally === 2) ? function (a) {
  6086.               const b = a - (this.lastFrameTimestamp || 0);
  6087.               const rate = this.scrollRatePixelsPerSecond
  6088.               const q = b / 1E3 * (rate || 0);
  6089.  
  6090.               const sl = this.$.items.scrollLeft;
  6091.               // console.log(rate, sl, q)
  6092.               if (this.lastFrameTimestamp == this.scrollStartTime) {
  6093.  
  6094.               } else if (q > -1e-5 && q < 1e-5) {
  6095.  
  6096.               } else {
  6097.                 let cond1 = sl > 0 && rate > 0 && q > 0;
  6098.                 let cond2 = sl > 0 && rate < 0 && q < 0;
  6099.                 let cond3 = sl < 1e-5 && sl > -1e-5 && rate > 0 && q > 0;
  6100.                 if (cond1 || cond2 || cond3) {
  6101.                   this.$.items.scrollLeft += q;
  6102.                   this.maybeClampScroll();
  6103.                   this.updateArrows();
  6104.                 }
  6105.               }
  6106.  
  6107.               this.lastFrameTimestamp = a;
  6108.               this._bound_scrollIncrementally = this._bound_scrollIncrementally || this.scrollIncrementally.bind(this);
  6109.               0 < this.$.items.scrollLeft || rate && 0 < rate ? this.asyncHandle = requestAnimationFrame(this._bound_scrollIncrementally) : this.stopScrolling()
  6110.             } : function (a) {
  6111.               const b = a - (this.lastFrameTimestamp || 0);
  6112.               this.$.items.scrollLeft += b / 1E3 * (this.scrollRatePixelsPerSecond || 0);
  6113.               this.maybeClampScroll();
  6114.               this.updateArrows();
  6115.               this.lastFrameTimestamp = a;
  6116.               this._bound_scrollIncrementally = this._bound_scrollIncrementally || this.scrollIncrementally.bind(this);
  6117.               0 < this.$.items.scrollLeft || this.scrollRatePixelsPerSecond && 0 < this.scrollRatePixelsPerSecond ? this.asyncHandle = requestAnimationFrame(this._bound_scrollIncrementally) : this.stopScrolling()
  6118.             };
  6119.  
  6120.             console.log(`RAF_FIX: scrollIncrementally${RAF_FIX_scrollIncrementally}`, tag, "OK")
  6121.           } else {
  6122.             assertor(() => fnIntegrity(cProto.startScrolling, '1.43.31'));
  6123.             assertor(() => fnIntegrity(cProto.scrollIncrementally, '1.82.43'));
  6124.             console.log('RAF_FIX: scrollIncrementally', tag, "NG")
  6125.           }
  6126.  
  6127.  
  6128.           if (CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED && typeof cProto.attached === 'function' && !cProto.attached37 && typeof cProto.detached === 'function' && !cProto.detached37) {
  6129.  
  6130.             cProto.attached37 = cProto.attached;
  6131.             cProto.detached37 = cProto.detached;
  6132.  
  6133.             let naohzId = 0;
  6134.             cProto.__naohzId__ = 0;
  6135.             cProto.attached = function () {
  6136.               Promise.resolve().then(() => {
  6137.  
  6138.                 const hostElement = this.hostElement || this;
  6139.                 if (!(hostElement instanceof HTMLElement)) return;
  6140.                 if (!HTMLElement.prototype.matches.call(hostElement, '.yt-live-chat-renderer')) return;
  6141.                 const ironPage = HTMLElement.prototype.closest.call(hostElement, 'iron-pages.yt-live-chat-renderer');
  6142.                 // or #chat-messages
  6143.                 if (!ironPage) return;
  6144.  
  6145.                 if (this.__naohzId__) removeEventListener.call(ironPage, 'click', this.messageBoxClickHandlerForFade, { capture: false, passive: true });
  6146.                 if (naohzId > 1e9) naohzId = naohzId % 1e4;
  6147.                 this.__naohzId__ = ++naohzId;
  6148.                 ironPage.setAttribute('naohz', `${+this.__naohzId__}`);
  6149.  
  6150.                 addEventListener.call(ironPage, 'click', this.messageBoxClickHandlerForFade, { capture: false, passive: true });
  6151.  
  6152.               });
  6153.               return this.attached37.apply(this, arguments);
  6154.             };
  6155.             cProto.detached = function () {
  6156.               Promise.resolve().then(() => {
  6157.  
  6158.                 const ironPage = document.querySelector(`iron-pages[naohz="${+this.__naohzId__}"]`);
  6159.                 if (!ironPage) return;
  6160.  
  6161.                 removeEventListener.call(ironPage, 'click', this.messageBoxClickHandlerForFade, { capture: false, passive: true });
  6162.  
  6163.               });
  6164.               return this.detached37.apply(this, arguments);
  6165.             };
  6166.  
  6167.             const clickFade = (u) => {
  6168.               u.click();
  6169.             };
  6170.             cProto.messageBoxClickHandlerForFade = async (evt) => {
  6171.  
  6172.               const target = (evt || 0).target || 0;
  6173.               if (!target) return;
  6174.  
  6175.               for (let p = target; p instanceof HTMLElement; p = nodeParent(p)) {
  6176.                 const is = p.is;
  6177.                 if (typeof is === 'string' && is) {
  6178.  
  6179.                   if (is === 'yt-live-chat-pinned-message-renderer') {
  6180.                     return;
  6181.                   }
  6182.                   if (is === 'iron-pages' || is === 'yt-live-chat-renderer' || is === 'yt-live-chat-app') {
  6183.                     const fade = HTMLElement.prototype.querySelector.call(p, 'yt-live-chat-pinned-message-renderer:not([hidden]) #fade');
  6184.                     if (fade) {
  6185.                       Promise.resolve(fade).then(clickFade);
  6186.                       evt && evt.stopPropagation();
  6187.                     }
  6188.                     return;
  6189.                   }
  6190.                   if (is !== 'yt-live-chat-ticker-renderer') {
  6191.                     if (is.startsWith('yt-live-chat-ticker-')) return;
  6192.                     if (!is.endsWith('-renderer')) return;
  6193.                   }
  6194.  
  6195.                 } else {
  6196.                   if ((p.nodeName || '').includes('BUTTON')) return;
  6197.                 }
  6198.  
  6199.               }
  6200.             };
  6201.  
  6202.             console.log("CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED - OK")
  6203.  
  6204.           } else {
  6205.             console.log("CLOSE_TICKER_PINNED_MESSAGE_WHEN_HEADER_CLICKED - NG")
  6206.           }
  6207.  
  6208.  
  6209.         })();
  6210.  
  6211.         console.log("[End]");
  6212.  
  6213.         console.groupEnd();
  6214.  
  6215.       }).catch(console.warn);
  6216.  
  6217.  
  6218.  
  6219.       if (ENABLE_RAF_HACK_INPUT_RENDERER || DELAY_FOCUSEDCHANGED) {
  6220.  
  6221.         customElements.whenDefined("yt-live-chat-message-input-renderer").then(() => {
  6222.  
  6223.           mightFirstCheckOnYtInit();
  6224.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-message-input-renderer hacks");
  6225.           console.log("[Begin]");
  6226.           (() => {
  6227.  
  6228.  
  6229.  
  6230.             const tag = "yt-live-chat-message-input-renderer"
  6231.             const dummy = document.createElement(tag);
  6232.  
  6233.             const cProto = getProto(dummy);
  6234.             if (!cProto || !cProto.attached) {
  6235.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6236.               return;
  6237.             }
  6238.  
  6239.  
  6240.             if (ENABLE_RAF_HACK_INPUT_RENDERER && rafHub !== null) {
  6241.  
  6242.               let doHack = false;
  6243.               if (typeof cProto.handleTimeout === 'function' && typeof cProto.updateTimeout === 'function') {
  6244.  
  6245.                 // not cancellable
  6246.  
  6247.  
  6248.                 doHack = fnIntegrity(cProto.handleTimeout, '1.27.16') && fnIntegrity(cProto.updateTimeout, '1.50.33');
  6249.  
  6250.               }
  6251.  
  6252.               if (doHack) {
  6253.  
  6254.                 cProto.handleTimeout = function (a) {
  6255.                   console.log('cProto.handleTimeout', tag)
  6256.                   if (!this.boundUpdateTimeout38_) this.boundUpdateTimeout38_ = this.updateTimeout.bind(this);
  6257.                   this.timeoutDurationMs = this.timeoutMs = a;
  6258.                   this.countdownRatio = 1;
  6259.                   0 === this.lastTimeoutTimeMs && rafHub.request(this.boundUpdateTimeout38_)
  6260.                 };
  6261.                 cProto.updateTimeout = function (a) {
  6262.                   console.log('cProto.updateTimeout', tag)
  6263.                   if (!this.boundUpdateTimeout38_) this.boundUpdateTimeout38_ = this.updateTimeout.bind(this);
  6264.                   this.lastTimeoutTimeMs && (this.timeoutMs = Math.max(0, this.timeoutMs - (a - this.lastTimeoutTimeMs)),
  6265.                     this.countdownRatio = this.timeoutMs / this.timeoutDurationMs);
  6266.                   this.isAttached && this.timeoutMs ? (this.lastTimeoutTimeMs = a,
  6267.                     rafHub.request(this.boundUpdateTimeout38_)) : this.lastTimeoutTimeMs = 0
  6268.                 };
  6269.  
  6270.                 console.log('RAF_HACK_INPUT_RENDERER', tag, "OK")
  6271.               } else {
  6272.  
  6273.                 console.log('typeof handleTimeout', typeof cProto.handleTimeout)
  6274.                 console.log('typeof updateTimeout', typeof cProto.updateTimeout)
  6275.  
  6276.                 console.log('RAF_HACK_INPUT_RENDERER', tag, "NG")
  6277.               }
  6278.  
  6279.  
  6280.             }
  6281.  
  6282.             if (DELAY_FOCUSEDCHANGED && typeof cProto.onFocusedChanged === 'function' && cProto.onFocusedChanged.length === 1 && !cProto.onFocusedChanged372) {
  6283.               cProto.onFocusedChanged372 = cProto.onFocusedChanged;
  6284.               cProto.onFocusedChanged = function (a) {
  6285.                 Promise.resolve().then(() => {
  6286.                   if (this.isAttached === true) this.onFocusedChanged372(a);
  6287.                 }).catch(console.warn);
  6288.               }
  6289.             }
  6290.  
  6291.           })();
  6292.  
  6293.           console.log("[End]");
  6294.  
  6295.           console.groupEnd();
  6296.  
  6297.  
  6298.         })
  6299.  
  6300.       }
  6301.  
  6302.  
  6303.       if (ENABLE_RAF_HACK_EMOJI_PICKER && rafHub !== null) {
  6304.  
  6305.  
  6306.         customElements.whenDefined("yt-emoji-picker-renderer").then(() => {
  6307.  
  6308.           mightFirstCheckOnYtInit();
  6309.           groupCollapsed("YouTube Super Fast Chat", " | yt-emoji-picker-renderer hacks");
  6310.           console.log("[Begin]");
  6311.           (() => {
  6312.  
  6313.             const tag = "yt-emoji-picker-renderer"
  6314.             const dummy = document.createElement(tag);
  6315.  
  6316.             const cProto = getProto(dummy);
  6317.             if (!cProto || !cProto.attached) {
  6318.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6319.               return;
  6320.             }
  6321.  
  6322.             let doHack = false;
  6323.             if (typeof cProto.animateScroll_ === 'function') {
  6324.  
  6325.               // not cancellable
  6326.               console.log('animateScroll_', typeof cProto.animateScroll_)
  6327.  
  6328.               doHack = fnIntegrity(cProto.animateScroll_, '1.102.49')
  6329.  
  6330.             }
  6331.  
  6332.             if (doHack) {
  6333.  
  6334.               const querySelector = HTMLElement.prototype.querySelector;
  6335.               const U = (element) => ({
  6336.                 querySelector: (selector) => querySelector.call(element, selector)
  6337.               });
  6338.  
  6339.               cProto.animateScroll_ = function (a) {
  6340.                 // console.log('cProto.animateScroll_', tag) // yt-emoji-picker-renderer
  6341.                 if (!this.boundAnimateScroll39_) this.boundAnimateScroll39_ = this.animateScroll_.bind(this);
  6342.                 this.lastAnimationTime_ || (this.lastAnimationTime_ = a);
  6343.                 a -= this.lastAnimationTime_;
  6344.                 200 > a ? (U(this.hostElement).querySelector("#categories").scrollTop = this.animationStart_ + (this.animationEnd_ - this.animationStart_) * a / 200,
  6345.                   rafHub.request(this.boundAnimateScroll39_)) : (null != this.animationEnd_ && (U(this.hostElement).querySelector("#categories").scrollTop = this.animationEnd_),
  6346.                     this.animationEnd_ = this.animationStart_ = null,
  6347.                     this.lastAnimationTime_ = 0);
  6348.                 this.updateButtons_()
  6349.               }
  6350.  
  6351.               console.log('ENABLE_RAF_HACK_EMOJI_PICKER', tag, "OK")
  6352.             } else {
  6353.  
  6354.               console.log('ENABLE_RAF_HACK_EMOJI_PICKER', tag, "NG")
  6355.             }
  6356.  
  6357.           })();
  6358.  
  6359.           console.log("[End]");
  6360.  
  6361.           console.groupEnd();
  6362.         });
  6363.       }
  6364.  
  6365.       if (ENABLE_RAF_HACK_DOCKED_MESSAGE && rafHub !== null) {
  6366.  
  6367.  
  6368.         customElements.whenDefined("yt-live-chat-docked-message").then(() => {
  6369.  
  6370.           mightFirstCheckOnYtInit();
  6371.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-docked-message hacks");
  6372.           console.log("[Begin]");
  6373.           (() => {
  6374.  
  6375.             const tag = "yt-live-chat-docked-message"
  6376.             const dummy = document.createElement(tag);
  6377.  
  6378.             const cProto = getProto(dummy);
  6379.             if (!cProto || !cProto.attached) {
  6380.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6381.               return;
  6382.             }
  6383.  
  6384.             let doHack = false;
  6385.             if (typeof cProto.detached === 'function' && typeof cProto.checkIntersections === 'function' && typeof cProto.onDockableMessagesChanged === 'function' && typeof cProto.boundCheckIntersections === 'undefined') {
  6386.  
  6387.               // cancelable - this.intersectRAF <detached>
  6388.               // yt-live-chat-docked-message
  6389.               // boundCheckIntersections <-> checkIntersections
  6390.               // onDockableMessagesChanged
  6391.               //  this.intersectRAF = window.requestAnimationFrame(this.boundCheckIntersections);
  6392.  
  6393.               console.log('detached', typeof cProto.detached)
  6394.               console.log('checkIntersections', typeof cProto.checkIntersections)
  6395.               console.log('onDockableMessagesChanged', typeof cProto.onDockableMessagesChanged)
  6396.  
  6397.               doHack = fnIntegrity(cProto.detached, '0.32.22') && fnIntegrity(cProto.checkIntersections, '0.128.85') && fnIntegrity(cProto.onDockableMessagesChanged, '0.20.11')
  6398.  
  6399.             }
  6400.  
  6401.             if (doHack) {
  6402.  
  6403.               cProto.checkIntersections = function () {
  6404.                 // console.log('cProto.checkIntersections', tag)
  6405.                 if (this.dockableMessages.length) {
  6406.                   this.intersectRAF = rafHub.request(this.boundCheckIntersections);
  6407.                   let a = this.dockableMessages[0]
  6408.                     , b = this.hostElement.getBoundingClientRect();
  6409.                   a = a.getBoundingClientRect();
  6410.                   let c = a.top - b.top
  6411.                     , d = 8 >= c;
  6412.                   c = 8 >= c - this.hostElement.clientHeight;
  6413.                   if (d) {
  6414.                     let e;
  6415.                     for (; d;) {
  6416.                       e = this.dockableMessages.shift();
  6417.                       d = this.dockableMessages[0];
  6418.                       if (!d)
  6419.                         break;
  6420.                       d = d.getBoundingClientRect();
  6421.                       c = d.top - b.top;
  6422.                       let f = 8 >= c;
  6423.                       if (8 >= c - a.height)
  6424.                         if (f)
  6425.                           a = d;
  6426.                         else
  6427.                           return;
  6428.                       d = f
  6429.                     }
  6430.                     this.dock(e)
  6431.                   } else
  6432.                     c && this.dockedItem && this.clear()
  6433.                 } else
  6434.                   this.intersectRAF = 0
  6435.               }
  6436.  
  6437.               cProto.onDockableMessagesChanged = function () {
  6438.                 // console.log('cProto.onDockableMessagesChanged', tag) // yt-live-chat-docked-message
  6439.                 this.dockableMessages.length && !this.intersectRAF && (this.intersectRAF = rafHub.request(this.boundCheckIntersections))
  6440.               }
  6441.  
  6442.               cProto.detached = function () {
  6443.                 this.intersectRAF && rafHub.cancel(this.intersectRAF)
  6444.               }
  6445.  
  6446.               console.log('ENABLE_RAF_HACK_DOCKED_MESSAGE', tag, "OK")
  6447.             } else {
  6448.  
  6449.               console.log('ENABLE_RAF_HACK_DOCKED_MESSAGE', tag, "NG")
  6450.             }
  6451.  
  6452.           })();
  6453.  
  6454.           console.log("[End]");
  6455.  
  6456.           console.groupEnd();
  6457.  
  6458.         }).catch(console.warn);
  6459.  
  6460.       }
  6461.  
  6462.       if (FIX_SETSRC_AND_THUMBNAILCHANGE_) {
  6463.  
  6464.  
  6465.         customElements.whenDefined("yt-img-shadow").then(() => {
  6466.  
  6467.           mightFirstCheckOnYtInit();
  6468.           groupCollapsed("YouTube Super Fast Chat", " | yt-img-shadow hacks");
  6469.           console.log("[Begin]");
  6470.           (() => {
  6471.  
  6472.             const tag = "yt-img-shadow"
  6473.             const dummy = document.createElement(tag);
  6474.  
  6475.             const cProto = getProto(dummy);
  6476.             if (!cProto || !cProto.attached) {
  6477.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6478.               return;
  6479.             }
  6480.  
  6481.             if (typeof cProto.thumbnailChanged_ === 'function' && !cProto.thumbnailChanged66_) {
  6482.  
  6483.               cProto.thumbnailChanged66_ = cProto.thumbnailChanged_;
  6484.               cProto.thumbnailChanged_ = function (a) {
  6485.  
  6486.                 if (this.oldThumbnail_ && this.thumbnail && this.oldThumbnail_.thumbnails === this.thumbnail.thumbnails) return;
  6487.                 if (!this.oldThumbnail_ && !this.thumbnail) return;
  6488.  
  6489.                 return this.thumbnailChanged66_.apply(this, arguments)
  6490.  
  6491.               }
  6492.               console.log("cProto.thumbnailChanged_ - OK");
  6493.  
  6494.             } else {
  6495.               console.log("cProto.thumbnailChanged_ - NG");
  6496.  
  6497.             }
  6498.             if (typeof cProto.setSrc_ === 'function' && !cProto.setSrc66_) {
  6499.  
  6500.               cProto.setSrc66_ = cProto.setSrc_;
  6501.               cProto.setSrc_ = function (a) {
  6502.                 if ((((this || 0).$ || 0).img || 0).src === a) return;
  6503.                 return this.setSrc66_.apply(this, arguments)
  6504.               }
  6505.  
  6506.               console.log("cProto.setSrc_ - OK");
  6507.             } else {
  6508.  
  6509.               console.log("cProto.setSrc_ - NG");
  6510.             }
  6511.  
  6512.           })();
  6513.  
  6514.           console.log("[End]");
  6515.  
  6516.           console.groupEnd();
  6517.  
  6518.         }).catch(console.warn);
  6519.  
  6520.       }
  6521.  
  6522.       if (FIX_THUMBNAIL_DATACHANGED) {
  6523.  
  6524.  
  6525.  
  6526.         customElements.whenDefined("yt-live-chat-author-badge-renderer").then(() => {
  6527.  
  6528.           mightFirstCheckOnYtInit();
  6529.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-author-badge-renderer hacks");
  6530.           console.log("[Begin]");
  6531.           (() => {
  6532.  
  6533.             const tag = "yt-live-chat-author-badge-renderer"
  6534.             const dummy = document.createElement(tag);
  6535.  
  6536.             const cProto = getProto(dummy);
  6537.             if (!cProto || !cProto.attached) {
  6538.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6539.               return;
  6540.             }
  6541.  
  6542.  
  6543.             if (typeof cProto.dataChanged === 'function' && !cProto.dataChanged86 && '|1.160.97|1.159.97|'.includes(`|${fnIntegrity(cProto.dataChanged)}|`)) {
  6544.  
  6545.  
  6546.  
  6547.               cProto.dataChanged86 = cProto.dataChanged;
  6548.               cProto.dataChanged = function (a) {
  6549.  
  6550.                 /*
  6551.  
  6552.                   for (var b = xC(Z(this.hostElement).querySelector("#image")); b.firstChild; )
  6553.                       b.removeChild(b.firstChild);
  6554.                   if (a)
  6555.                       if (a.icon) {
  6556.                           var c = document.createElement("yt-icon");
  6557.                           "MODERATOR" === a.icon.iconType && this.enableNewModeratorBadge ? (c.icon = "yt-sys-icons:shield-filled",
  6558.                           c.defaultToFilled = !0) : c.icon = "live-chat-badges:" + a.icon.iconType.toLowerCase();
  6559.                           b.appendChild(c)
  6560.                       } else if (a.customThumbnail) {
  6561.                           c = document.createElement("img");
  6562.                           var d;
  6563.                           (d = (d = KC(a.customThumbnail.thumbnails, 16)) ? lc(oc(d)) : null) ? (c.src = d,
  6564.                           b.appendChild(c),
  6565.                           c.setAttribute("alt", this.hostElement.ariaLabel || "")) : lq(new tm("Could not compute URL for thumbnail",a.customThumbnail))
  6566.                       }
  6567.  
  6568.                 */
  6569.  
  6570.                 const image = ((this || 0).$ || 0).image
  6571.                 if (image && a && image.firstElementChild) {
  6572.                   let exisiting = image.firstElementChild;
  6573.                   if (exisiting === image.lastElementChild) {
  6574.  
  6575.  
  6576.                     if (a.icon && exisiting.nodeName.toUpperCase() === 'YT-ICON') {
  6577.  
  6578.                       let c = exisiting;
  6579.                       if ("MODERATOR" === a.icon.iconType && this.enableNewModeratorBadge) {
  6580.                         if (c.icon !== "yt-sys-icons:shield-filled") c.icon = "yt-sys-icons:shield-filled";
  6581.                         if (c.defaultToFilled !== true) c.defaultToFilled = true;
  6582.                       } else {
  6583.                         let p = "live-chat-badges:" + a.icon.iconType.toLowerCase();;
  6584.                         if (c.icon !== p) c.icon = p;
  6585.                         if (c.defaultToFilled !== false) c.defaultToFilled = false;
  6586.                       }
  6587.                       return;
  6588.  
  6589.  
  6590.                     } else if (a.customThumbnail && exisiting.nodeName.toUpperCase() == 'IMG') {
  6591.  
  6592.                       let c = exisiting;
  6593.                       if (a.customThumbnail.thumbnails.map(e => e.url).includes(c.src)) {
  6594.  
  6595.                         c.setAttribute("alt", this.hostElement.ariaLabel || "");
  6596.                         return;
  6597.                       }
  6598.                       /*
  6599.  
  6600.                       var d;
  6601.                       (d = (d = KC(a.customThumbnail.thumbnails, 16)) ? lc(oc(d)) : null) ? (c.src = d,
  6602.  
  6603.  
  6604.                         c.setAttribute("alt", this.hostElement.ariaLabel || "")) : lq(new tm("Could not compute URL for thumbnail", a.customThumbnail))
  6605.                         */
  6606.                     }
  6607.  
  6608.  
  6609.                   }
  6610.                 }
  6611.                 return this.dataChanged86.apply(this, arguments)
  6612.  
  6613.               }
  6614.               console.log("cProto.dataChanged - OK");
  6615.  
  6616.             } else {
  6617.               assertor(() => fnIntegrity(cProto.dataChanged, '1.160.97'));
  6618.               console.log("cProto.dataChanged - NG");
  6619.  
  6620.             }
  6621.  
  6622.           })();
  6623.  
  6624.           console.log("[End]");
  6625.  
  6626.           console.groupEnd();
  6627.  
  6628.         }).catch(console.warn);
  6629.  
  6630.  
  6631.       }
  6632.  
  6633.  
  6634.       if (FIX_TOOLTIP_DISPLAY) {
  6635.  
  6636.  
  6637.         customElements.whenDefined("tp-yt-paper-tooltip").then(() => {
  6638.  
  6639.           mightFirstCheckOnYtInit();
  6640.           groupCollapsed("YouTube Super Fast Chat", " | tp-yt-paper-tooltip hacks");
  6641.           console.log("[Begin]");
  6642.           (() => {
  6643.  
  6644.             const tag = "tp-yt-paper-tooltip"
  6645.             const dummy = document.createElement(tag);
  6646.  
  6647.             const cProto = getProto(dummy);
  6648.             if (!cProto || !cProto.attached) {
  6649.               console.warn(`proto.attached for ${tag} is unavailable.`);
  6650.               return;
  6651.             }
  6652.  
  6653.             if (typeof cProto.attached === 'function' && typeof cProto.detached === 'function' && cProto._readyClients && cProto._attachDom && cProto.ready && !cProto._readyClients43) {
  6654.  
  6655.               cProto._readyClients43 = cProto._readyClients;
  6656.               cProto._readyClients = function () {
  6657.                 let r = cProto._readyClients43.apply(this, arguments);
  6658.                 if (this.$ && this.$$ && this.$.tooltip) this.root = null; // fix this.root = null != (b = a.root) ? b : this.host
  6659.                 return r;
  6660.               }
  6661.  
  6662.               console.log("_readyClients - OK");
  6663.  
  6664.             } else {
  6665.               console.log("_readyClients - NG");
  6666.  
  6667.             }
  6668.  
  6669.             if (typeof cProto.show === 'function' && !cProto.show17) {
  6670.               cProto.show17 = cProto.show;
  6671.               cProto.show = function () {
  6672.  
  6673.                 let r = this.show17.apply(this, arguments);
  6674.                 this._showing === true && Promise.resolve().then(() => {
  6675.                   const tooltip = (this.$ || 0).tooltip;
  6676.  
  6677.                   if (tooltip && tooltip.firstElementChild === null) {
  6678.                     let text = tooltip.textContent;
  6679.                     if (typeof text === 'string' && text.length >= 2) {
  6680.                       tooltip.textContent = text.trim();
  6681.                     }
  6682.                   }
  6683.                 }).catch(console.warn)
  6684.                 return r;
  6685.               }
  6686.  
  6687.               console.log("trim tooltip content - OK");
  6688.  
  6689.             } else {
  6690.               console.log("trim tooltip content - NG");
  6691.  
  6692.             }
  6693.  
  6694.             /*
  6695.             cProto.updatePosition61 = cProto.updatePosition;
  6696.  
  6697.  
  6698.             cProto.updatePosition = function () {
  6699.  
  6700.  
  6701.               if (this._target && this.offsetParent) {
  6702.                 var a = this.offset;
  6703.                 14 != this.marginTop && 14 == this.offset && (a = this.marginTop);
  6704.                 var b = this.offsetParent.getBoundingClientRect()
  6705.                   , c = this._target.getBoundingClientRect()
  6706.                   , d = this.getBoundingClientRect()
  6707.                   , e = (c.width - d.width) / 2
  6708.                   , h = (c.height - d.height) / 2
  6709.                   , l = c.left - b.left
  6710.                   , m = c.top - b.top;
  6711.                 switch (this.position) {
  6712.                   case "top":
  6713.                     var p = l + e;
  6714.                     var q = m - d.height - a;
  6715.                     break;
  6716.                   case "bottom":
  6717.                     p = l + e;
  6718.                     q = m + c.height + a;
  6719.                     break;
  6720.                   case "left":
  6721.                     p = l - d.width - a;
  6722.                     q = m + h;
  6723.                     break;
  6724.                   case "right":
  6725.                     p = l + c.width + a,
  6726.                       q = m + h;
  6727.                 }
  6728.  
  6729.               if(this.ascee) {
  6730.                 this.fitToVisibleBounds = false;
  6731.               }
  6732.                 this.fitToVisibleBounds ? (b.left + p + d.width > window.innerWidth ? (this.style.right = "0px",
  6733.                   this.style.left = "auto") : (this.style.left = Math.max(0, p) + "px",
  6734.                     this.style.right = "auto"),
  6735.                   b.top + q + d.height > window.innerHeight ? (this.style.bottom = b.height + "px",
  6736.                     this.style.top = "auto") : (this.style.top = Math.max(-b.top, q) + "px",
  6737.                       this.style.bottom = "auto")) : (this.style.left = p + "px",
  6738.                         this.style.top = q + "px")
  6739.               }
  6740.             }
  6741.  
  6742.             cProto.updateStyles61 = cProto.updateStyles;
  6743.             cProto.updateStyles= function(){
  6744.               if(this.ascee) return;
  6745.               return this.updateStyles61.apply(this,arguments);
  6746.             }
  6747.             */
  6748.  
  6749.  
  6750.           })();
  6751.  
  6752.           console.log("[End]");
  6753.  
  6754.           console.groupEnd();
  6755.  
  6756.         }).catch(console.warn);
  6757.  
  6758.  
  6759.  
  6760.       }
  6761.  
  6762.  
  6763.  
  6764.       if (FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK) {
  6765.  
  6766.  
  6767.         const hookDocumentMouseDownSetupFn = () => {
  6768.  
  6769.  
  6770.  
  6771.           let muzTimestamp = 0;
  6772.           let nszDropdown = null;
  6773.  
  6774.  
  6775.  
  6776.           const handlerObject = {
  6777.  
  6778.             // mdHandler282 : function (evt) {
  6779.             //   // console.log(evt, 1, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  6780.             //   if (!evt || !evt.isTrusted) return;
  6781.             //   muzTimestamp = 0;
  6782.             //   nszDropdown = null;
  6783.  
  6784.             //   const hostElement = this.hostElement || this;
  6785.             //   if (!evt || !evt.isTrusted || !hostElement.hasAttribute('menu-visible')) return;
  6786.             //   if (!hostElement.contains(evt.target)) return;
  6787.             //   let targetDropDown = null;
  6788.             //   for(const dropdown of document.querySelectorAll('tp-yt-iron-dropdown.style-scope.yt-live-chat-app')){
  6789.             //     if(dropdown && dropdown.positionTarget && hostElement.contains( dropdown.positionTarget)){
  6790.             //       targetDropDown = dropdown;
  6791.             //     }
  6792.             //   }
  6793.             //   if ((nszDropdown = targetDropDown)) {
  6794.             //     muzTimestamp = Date.now();
  6795.             //     evt.stopImmediatePropagation();
  6796.             //     evt.stopPropagation();
  6797.             //   }
  6798.  
  6799.             // },
  6800.  
  6801.  
  6802.             muHandler282: function (evt) {
  6803.               // console.log(evt, 7, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  6804.               if (!evt || !evt.isTrusted || !muzTimestamp) return;
  6805.               const dropdown = nszDropdown;
  6806.               muzTimestamp = 0;
  6807.               nszDropdown = null;
  6808.  
  6809.               const kurMPC = kRef(currentMenuPivotWR) || 0;
  6810.               const hostElement = kurMPC.hostElement || kurMPC;
  6811.               if (!hostElement.hasAttribute('menu-visible')) return;
  6812.  
  6813.               const chatBanner = HTMLElement.prototype.closest.call(hostElement, 'yt-live-chat-banner-renderer') || 0;
  6814.               if (chatBanner) return;
  6815.  
  6816.               if (dropdown && dropdown.positionTarget && hostElement.contains(dropdown.positionTarget)) {
  6817.  
  6818.                 /*
  6819.                 const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  6820.                 if(parentButton) return;
  6821.                 */
  6822.  
  6823.                 muzTimestamp = Date.now();
  6824.                 evt.stopImmediatePropagation();
  6825.                 evt.stopPropagation();
  6826.                 Promise.resolve(dropdown).then((dropdown) => {
  6827.                   dropdown.cancel();
  6828.                 });
  6829.                 // document.body.click();
  6830.               }
  6831.  
  6832.             },
  6833.  
  6834.             mlHandler282: function (evt) {
  6835.               muzTimestamp = 0;
  6836.               nszDropdown = null;
  6837.             },
  6838.  
  6839.             ckHandler282: function (evt) {
  6840.               // console.log(evt, 3, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  6841.  
  6842.               if (!evt || !evt.isTrusted || !muzTimestamp) return;
  6843.               if (Date.now() - muzTimestamp < 40) {
  6844.  
  6845.                 /*
  6846.                 const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  6847.                 if(parentButton) return;
  6848.                 */
  6849.  
  6850.                 muzTimestamp = Date.now();
  6851.                 evt.stopImmediatePropagation();
  6852.                 evt.stopPropagation();
  6853.               }
  6854.  
  6855.             },
  6856.  
  6857.             tapHandler282: function (evt) {
  6858.               // console.log(evt, 2, document.querySelector('tp-yt-iron-dropdown[focused].style-scope.yt-live-chat-app'))
  6859.  
  6860.               if (!evt || !evt.isTrusted || !muzTimestamp) return;
  6861.               if (Date.now() - muzTimestamp < 40) {
  6862.  
  6863.                 /*
  6864.                 const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  6865.                 if(parentButton) return;
  6866.                 */
  6867.  
  6868.                 muzTimestamp = Date.now();
  6869.                 evt.stopImmediatePropagation();
  6870.                 evt.stopPropagation();
  6871.               }
  6872.  
  6873.             },
  6874.  
  6875.  
  6876.             handleEvent(evt) {
  6877.  
  6878.  
  6879.               if (evt) {
  6880.                 const kurMPC = kRef(currentMenuPivotWR) || 0;
  6881.                 const cnt = insp(kurMPC);
  6882.                 const hostElement = cnt.hostElement || cnt;
  6883.                 if (!cnt || cnt.isAttached !== true || hostElement.isConnected !== true) return;
  6884.                 switch (evt.type) {
  6885.                   // case 'mousedown':
  6886.                   // return this.mdHandler282.call(kurMPC, evt);
  6887.                   case 'mouseup':
  6888.                     return this.muHandler282(evt);
  6889.                   case 'mouseleave':
  6890.                     return this.mlHandler282(evt);
  6891.                   case 'tap':
  6892.                     return this.tapHandler282(evt);
  6893.                   case 'click':
  6894.                     return this.ckHandler282(evt);
  6895.                 }
  6896.               }
  6897.  
  6898.             }
  6899.  
  6900.  
  6901.  
  6902.           }
  6903.  
  6904.           document.addEventListener('mousedown', function (evt) {
  6905.  
  6906.             if (!evt || !evt.isTrusted || !evt.target) return;
  6907.  
  6908.  
  6909.  
  6910.             muzTimestamp = 0;
  6911.             nszDropdown = null;
  6912.  
  6913.             /*
  6914.             const parentButton = HTMLElement.prototype.closest.call(evt.target, 'button, yt-icon, yt-icon-shape, icon-shape');
  6915.             if(parentButton){
  6916.               const kurMPC = HTMLElement.prototype.closest.call(parentButton, '[whole-message-clickable]') || 0;
  6917.               if(kurMPC){
  6918.                 evt.preventDefault();
  6919.                 evt.stopImmediatePropagation();
  6920.                 evt.stopPropagation();
  6921.               }
  6922.               return;
  6923.             }
  6924.             */
  6925.  
  6926.             /** @type {HTMLElement | null} */
  6927.             const kurMP = kRef(currentMenuPivotWR);
  6928.             if (!kurMP) return;
  6929.             const kurMPC = HTMLElement.prototype.closest.call(kurMP, '[menu-visible]') || 0;
  6930.  
  6931.             if (!kurMPC || !kurMPC.hasAttribute('whole-message-clickable')) return;
  6932.  
  6933.             if (!kurMPC.isClickableChatRow111 || !kurMPC.isClickableChatRow111() || !HTMLElement.prototype.contains.call(kurMPC, evt.target)) return;
  6934.  
  6935.             const chatBanner = HTMLElement.prototype.closest.call(kurMPC, 'yt-live-chat-banner-renderer') || 0;
  6936.             if (chatBanner) return;
  6937.  
  6938.  
  6939.             let targetDropDown = null;
  6940.             for (const dropdown of document.querySelectorAll('tp-yt-iron-dropdown.style-scope.yt-live-chat-app')) {
  6941.               if (dropdown && dropdown.positionTarget === kurMP) {
  6942.                 targetDropDown = dropdown;
  6943.               }
  6944.             }
  6945.  
  6946.             if (!targetDropDown) return;
  6947.  
  6948.  
  6949.             /*
  6950.             if (parentButton) {
  6951.               evt.preventDefault();
  6952.               evt.stopImmediatePropagation();
  6953.               evt.stopPropagation();
  6954.               currentMenuPivotWR = mWeakRef(kurMPC);
  6955.               return;
  6956.             }
  6957.             */
  6958.  
  6959.             if ((nszDropdown = targetDropDown)) {
  6960.               muzTimestamp = Date.now();
  6961.               evt.stopImmediatePropagation();
  6962.               evt.stopPropagation();
  6963.               currentMenuPivotWR = mWeakRef(kurMPC);
  6964.  
  6965.               const listenOpts = { capture: true, passive: false, once: true };
  6966.  
  6967.               // remove unexcecuted eventHandler
  6968.               document.removeEventListener('mouseup', handlerObject, listenOpts);
  6969.               document.removeEventListener('mouseleave', handlerObject, listenOpts);
  6970.               document.removeEventListener('tap', handlerObject, listenOpts);
  6971.               document.removeEventListener('click', handlerObject, listenOpts);
  6972.  
  6973.               // inject one time eventHandler to by pass events
  6974.               document.addEventListener('mouseup', handlerObject, listenOpts);
  6975.               document.addEventListener('mouseleave', handlerObject, listenOpts);
  6976.               document.addEventListener('tap', handlerObject, listenOpts);
  6977.               document.addEventListener('click', handlerObject, listenOpts);
  6978.  
  6979.             }
  6980.  
  6981.           }, true);
  6982.  
  6983.         }
  6984.  
  6985.  
  6986.         // yt-live-chat-paid-message-renderer ??
  6987.  
  6988.         /*
  6989.  
  6990.         [...(new Set([...document.querySelectorAll('*')].filter(e=>e.is&&('shouldSupportWholeItemClick' in e)).map(e=>e.is))).keys()]
  6991.  
  6992.  
  6993.         "yt-live-chat-ticker-paid-message-item-renderer"
  6994.         "yt-live-chat-ticker-paid-sticker-item-renderer"
  6995.         "yt-live-chat-paid-message-renderer"
  6996.         "yt-live-chat-text-message-renderer"
  6997.         "yt-live-chat-paid-sticker-renderer"
  6998.  
  6999.         */
  7000.  
  7001.  
  7002.         whenDefinedMultiple([
  7003.  
  7004.           "yt-live-chat-paid-message-renderer",
  7005.           "yt-live-chat-membership-item-renderer",
  7006.           "yt-live-chat-paid-sticker-renderer",
  7007.           "yt-live-chat-text-message-renderer",
  7008.           "yt-live-chat-auto-mod-message-renderer",
  7009.  
  7010.           /*
  7011.           "yt-live-chat-ticker-paid-message-item-renderer",
  7012.           "yt-live-chat-ticker-paid-sticker-item-renderer",
  7013.           "yt-live-chat-paid-message-renderer",
  7014.           "yt-live-chat-text-message-renderer",
  7015.           "yt-live-chat-paid-sticker-renderer",
  7016.  
  7017.           "yt-live-chat-ticker-sponsor-item-renderer",
  7018.           "yt-live-chat-banner-header-renderer",
  7019.           "ytd-sponsorships-live-chat-gift-purchase-announcement-renderer",
  7020.           "ytd-sponsorships-live-chat-header-renderer",
  7021.           "ytd-sponsorships-live-chat-gift-redemption-announcement-renderer",
  7022.  
  7023.  
  7024.  
  7025.  
  7026.           "yt-live-chat-auto-mod-message-renderer",
  7027.           "yt-live-chat-text-message-renderer",
  7028.           "yt-live-chat-paid-message-renderer",
  7029.  
  7030.           "yt-live-chat-legacy-paid-message-renderer",
  7031.           "yt-live-chat-membership-item-renderer",
  7032.           "yt-live-chat-paid-sticker-renderer",
  7033.           "yt-live-chat-donation-announcement-renderer",
  7034.           "yt-live-chat-moderation-message-renderer",
  7035.           "ytd-sponsorships-live-chat-gift-purchase-announcement-renderer",
  7036.           "ytd-sponsorships-live-chat-gift-redemption-announcement-renderer",
  7037.           "yt-live-chat-viewer-engagement-message-renderer",
  7038.  
  7039.           */
  7040.  
  7041.  
  7042.         ]).then(sTags => {
  7043.  
  7044.  
  7045.           mightFirstCheckOnYtInit();
  7046.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-message-renderer(s)... hacks");
  7047.           console.log("[Begin]");
  7048.           let doMouseHook = false;
  7049.  
  7050.           const dProto = {
  7051.             isClickableChatRow111: function () {
  7052.               return (
  7053.                 this.data && typeof this.shouldSupportWholeItemClick === 'function' && typeof this.hasModerationOverlayVisible === 'function' &&
  7054.                 this.data.contextMenuEndpoint && this.wholeMessageClickable && this.shouldSupportWholeItemClick() && !this.hasModerationOverlayVisible()
  7055.               ); // follow .onItemTap(a)
  7056.             }
  7057.           };
  7058.  
  7059.           for (const sTag of sTags) { // ##tag##
  7060.  
  7061.  
  7062.             (() => {
  7063.  
  7064.               const tag = sTag;
  7065.               const dummy = document.createElement(tag);
  7066.  
  7067.               const cProto = getProto(dummy);
  7068.               if (!cProto || !cProto.attached) {
  7069.                 console.warn(`proto.attached for ${tag} is unavailable.`);
  7070.                 return;
  7071.               }
  7072.  
  7073.               const dCnt = insp(dummy);
  7074.               if ('wholeMessageClickable' in dCnt && typeof dCnt.hasModerationOverlayVisible === 'function' && typeof dCnt.shouldSupportWholeItemClick === 'function') {
  7075.  
  7076.                 cProto.isClickableChatRow111 = dProto.isClickableChatRow111;
  7077.  
  7078.                 const toHookDocumentMouseDown = typeof cProto.shouldSupportWholeItemClick === 'function' && typeof cProto.hasModerationOverlayVisible === 'function';
  7079.  
  7080.                 if (toHookDocumentMouseDown) {
  7081.                   doMouseHook = true;
  7082.                 }
  7083.  
  7084.                 console.log("shouldSupportWholeItemClick Y", tag);
  7085.  
  7086.               } else {
  7087.  
  7088.                 console.log("shouldSupportWholeItemClick N", tag);
  7089.               }
  7090.  
  7091.  
  7092.             })();
  7093.  
  7094.           }
  7095.  
  7096.  
  7097.           if (doMouseHook) {
  7098.  
  7099.             hookDocumentMouseDownSetupFn();
  7100.  
  7101.  
  7102.             console.log("FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK - Doc MouseEvent OK");
  7103.           }
  7104.  
  7105.           console.log("[End]");
  7106.  
  7107.           console.groupEnd();
  7108.  
  7109.  
  7110.         }).catch(console.warn);
  7111.  
  7112.  
  7113.         // https://www.youtube.com/watch?v=oQzFi1NO7io
  7114.  
  7115.  
  7116.       }
  7117.  
  7118.       if (NO_ITEM_TAP_FOR_NON_STATIONARY_TAP) {
  7119.         let targetElementCntWR = null;
  7120.         let _e0 = null;
  7121.         document.addEventListener('mousedown', (e) => {
  7122.           if (!e || !e.isTrusted) return;
  7123.           let element = e.target;
  7124.           for (; element instanceof HTMLElement; element = element.parentNode) {
  7125.             if (element.is) break;
  7126.           }
  7127.           if (!element || !element.is) return;
  7128.           const cnt = insp(element);
  7129.           if (typeof cnt.onItemTap === 'function') {
  7130.             cnt._onItemTap_isNonStationary = 0;
  7131.             const cProto = getProto(element);
  7132.             if (!cProto.onItemTap366 && typeof cProto.onItemTap === 'function' && cProto.onItemTap.length === 1) {
  7133.               cProto.onItemTap366 = cProto.onItemTap;
  7134.               cProto.onItemTap = function (a) {
  7135.                 const t = this._onItemTap_isNonStationary;
  7136.                 this._onItemTap_isNonStationary = 0;
  7137.                 if (t > Date.now()) return;
  7138.                 return this.onItemTap366.apply(this, arguments)
  7139.               }
  7140.             }
  7141.             _e0 = e;
  7142.             targetElementCntWR = mWeakRef(cnt);
  7143.           } else {
  7144.             _e0 = null;
  7145.             targetElementCntWR = null;
  7146.           }
  7147.         }, { capture: true, passive: true });
  7148.  
  7149.         document.addEventListener('mouseup', (e) => {
  7150.           if (!e || !e.isTrusted) return;
  7151.           const e0 = _e0;
  7152.           _e0 = null;
  7153.           if (!e0) return;
  7154.           const cnt = kRef(targetElementCntWR);
  7155.           targetElementCntWR = null;
  7156.           if (!cnt) return;
  7157.           if (e.timeStamp - e0.timeStamp > TAP_ACTION_DURATION) {
  7158.             cnt._onItemTap_isNonStationary = Date.now() + 40;
  7159.           } else if ((window.getSelection() + "").trim().replace(/[\u2000-\u200a\u202f\u2800\u200B\u200C\u200D\uFEFF]+/g, '').length >= 1) {
  7160.             cnt._onItemTap_isNonStationary = Date.now() + 40;
  7161.           } else {
  7162.             const dx = e.clientX - e0.clientX;
  7163.             const dy = e.clientY - e0.clientY;
  7164.             const dd = Math.sqrt(dx * dx + dy * dy);
  7165.             const ddmm = px2mm(dd);
  7166.             if (ddmm > 1.0) {
  7167.               cnt._onItemTap_isNonStationary = Date.now() + 40;
  7168.             } else {
  7169.               cnt._onItemTap_isNonStationary = 0;
  7170.             }
  7171.           }
  7172.         }, { capture: true, passive: true });
  7173.  
  7174.       }
  7175.  
  7176.  
  7177.       const __showContextMenu_assign_lock_with_external_unlock_ = function (targetCnt) {
  7178.  
  7179.         let rr = null;
  7180.         const p1 = new Promise(resolve => {
  7181.           rr = resolve;
  7182.         });
  7183.  
  7184.         const p1unlock = () => {
  7185.           const f = rr;
  7186.           if (f) {
  7187.             rr = null;
  7188.             f();
  7189.           }
  7190.         }
  7191.  
  7192.         return {
  7193.           p1,
  7194.           p1unlock,
  7195.           assignLock: (targetCnt, timeout) => {
  7196.             targetCnt.__showContextMenu_assign_lock__(p1);
  7197.             if (timeout) setTimeout(p1unlock, timeout);
  7198.           }
  7199.         }
  7200.  
  7201.       }
  7202.  
  7203.       if (PREREQUEST_CONTEXT_MENU_ON_MOUSE_DOWN) {
  7204.  
  7205.         document.addEventListener('mousedown', function (evt) {
  7206.  
  7207.           const maxloopDOMTreeElements = 4;
  7208.           const maxloopYtCompontents = 4;
  7209.           let j1 = 0;
  7210.           let j2 = 0;
  7211.           let target = (evt || 0).target || 0;
  7212.           if (!target) return;
  7213.  
  7214.  
  7215.           while (target instanceof HTMLElement) {
  7216.             if (++j1 > maxloopDOMTreeElements) break;
  7217.             if (typeof (target.is || insp(target).is || null) === 'string') break;
  7218.             target = nodeParent(target);
  7219.           }
  7220.           const components = [];
  7221.           while (target instanceof HTMLElement) {
  7222.             if (++j2 > maxloopYtCompontents) break;
  7223.             const cnt = insp(target);
  7224.             if (typeof (target.is || cnt.is || null) === 'string') {
  7225.               components.push(target);
  7226.             }
  7227.             if (typeof cnt.showContextMenu === 'function') break;
  7228.             target = target.parentComponent || cnt.parentComponent || null;
  7229.           }
  7230.           if (!(target instanceof HTMLElement)) return;
  7231.           const targetCnt = insp(target);
  7232.           if (typeof targetCnt.handleGetContextMenuResponse_ !== 'function' || typeof targetCnt.handleGetContextMenuError !== 'function') {
  7233.             console.log('Error Found: handleGetContextMenuResponse_ OR handleGetContextMenuError is not defined on a component with showContextMenu')
  7234.             return;
  7235.           }
  7236.  
  7237.           const endpoint = (targetCnt.data || 0).contextMenuEndpoint
  7238.           if (!endpoint) return;
  7239.           if (targetCnt.opened || !targetCnt.isAttached) return;
  7240.  
  7241.           if (typeof targetCnt.__cacheResolvedEndpointData__ !== 'function') {
  7242.             console.log(`preRequest for showContextMenu in ${targetCnt.is} is not yet supported.`)
  7243.           }
  7244.  
  7245.           const targetDollar = indr(target);
  7246.  
  7247.           let doPreRequest = false;
  7248.           if (components.length >= 2 && components[0].id === 'menu-button' && (targetDollar || 0)['menu-button'] === components[0]) {
  7249.             doPreRequest = true;
  7250.           } else if (components.length === 1 && components[0] === target) {
  7251.             doPreRequest = true;
  7252.           } else if (components.length >= 2 && components[0].id === 'author-photo' && (targetDollar || 0)['author-photo'] === components[0]) {
  7253.             doPreRequest = true;
  7254.           }
  7255.           if (doPreRequest === false) {
  7256.             console.log('doPreRequest = fasle on showContextMenu', components);
  7257.             return;
  7258.           }
  7259.  
  7260.           if (typeof targetCnt.__getCachedEndpointData__ !== 'function' || targetCnt.__getCachedEndpointData__(endpoint)) return;
  7261.  
  7262.           if ((typeof targetCnt.__showContextMenu_mutex_unlock_isEmpty__ === 'function') && !targetCnt.__showContextMenu_mutex_unlock_isEmpty__()) {
  7263.             console.log('preRequest on showContextMenu aborted due to stacked network request');
  7264.             return;
  7265.           }
  7266.  
  7267.  
  7268.           const onSuccess = (a) => {
  7269.             /*
  7270.  
  7271.               dQ() && (a = a.response);
  7272.               a.liveChatItemContextMenuSupportedRenderers && a.liveChatItemContextMenuSupportedRenderers.menuRenderer && this.showContextMenu_(a.liveChatItemContextMenuSupportedRenderers.menuRenderer);
  7273.               a.actions && Eu(this.hostElement, "yt-live-chat-actions", [a.actions])
  7274.  
  7275.             */
  7276.  
  7277.             a = a.response || a;
  7278.  
  7279.             if (!a) {
  7280.               console.log('unexpected error in prerequest for showContextMenu.onSuccess');
  7281.               return;
  7282.             }
  7283.  
  7284.             let z = null;
  7285.             a.liveChatItemContextMenuSupportedRenderers && a.liveChatItemContextMenuSupportedRenderers.menuRenderer && (z = a.liveChatItemContextMenuSupportedRenderers.menuRenderer);
  7286.  
  7287.             if (z) {
  7288.               a = z;
  7289.               targetCnt.__cacheResolvedEndpointData__(endpoint, a, true);
  7290.             }
  7291.  
  7292.           };
  7293.           const onFailure = (a) => {
  7294.  
  7295.             /*
  7296.  
  7297.               if (a instanceof Error || a instanceof Object || a instanceof String)
  7298.                   var b = a;
  7299.               hq(new xm("Error encountered calling GetLiveChatItemContextMenu",b))
  7300.  
  7301.             */
  7302.  
  7303.             targetCnt.__cacheResolvedEndpointData__(endpoint, null);
  7304.             // console.log('onFailure', a)
  7305.  
  7306.           };
  7307.  
  7308.           if (doPreRequest) {
  7309.  
  7310.             let propertyCounter = 0;
  7311.             const pm1 = __showContextMenu_assign_lock_with_external_unlock_(targetCnt);
  7312.             const p1Timeout = 800;
  7313.             const proxyKey = '__$$__proxy_to_this__$$__' + Date.now();
  7314.  
  7315.             try {
  7316.  
  7317.               const onSuccessHelperFn = function () {
  7318.                 pm1.p1unlock();
  7319.                 if (propertyCounter !== 5) {
  7320.                   console.log('Error in prerequest for showContextMenu.onSuccessHelperFn')
  7321.                   return;
  7322.                 }
  7323.                 if (this[proxyKey] !== targetCnt) {
  7324.                   console.log('Error in prerequest for showContextMenu.this');
  7325.                   return;
  7326.                 }
  7327.                 onSuccess(...arguments);
  7328.               };
  7329.               const onFailureHelperFn = function () {
  7330.                 pm1.p1unlock();
  7331.                 if (propertyCounter !== 5) {
  7332.                   console.log('Error in prerequest for showContextMenu.onFailureHelperFn')
  7333.                   return;
  7334.                 }
  7335.                 if (this[proxyKey] !== targetCnt) {
  7336.                   console.log('Error in prerequest for showContextMenu.this');
  7337.                   return;
  7338.                 }
  7339.                 onFailure(...arguments);
  7340.  
  7341.               }
  7342.               const fakeTargetCnt = new Proxy({
  7343.                 __showContextMenu_forceNativeRequest__: 1,
  7344.                 __showContextMenu_sync_mode_request__: 1,
  7345.                 get handleGetContextMenuResponse_() {
  7346.                   propertyCounter += 2;
  7347.                   return onSuccessHelperFn;
  7348.                 },
  7349.                 get handleGetContextMenuError() {
  7350.                   propertyCounter += 3;
  7351.                   return onFailureHelperFn;
  7352.                 }
  7353.               }, {
  7354.                 get(_, key, receiver) {
  7355.                   if (key in _) return _[key];
  7356.                   if (key === proxyKey) return targetCnt;
  7357.  
  7358.                   let giveNative = false;
  7359.                   if (key in targetCnt) {
  7360.                     if (key === 'data') giveNative = true;
  7361.                     else if (typeof targetCnt[key] === 'function') giveNative = true;
  7362.                   }
  7363.                   if (giveNative) return targetCnt[key];
  7364.                 }
  7365.               });
  7366.  
  7367.               const fakeEvent = (() => {
  7368.                 const { target, bubbles, cancelable, cancelBubble, srcElement, timeStamp, defaultPrevented, currentTarget, composed } = evt;
  7369.                 const nf = function () { }
  7370.                 const [stopPropagation, stopImmediatePropagation, preventDefault] = [nf, nf, nf];
  7371.  
  7372.                 return {
  7373.                   type: 'tap',
  7374.                   eventPhase: 0,
  7375.                   isTrusted: false,
  7376.                   __composed: true,
  7377.                   bubbles, cancelable, cancelBubble, timeStamp,
  7378.                   target, srcElement, defaultPrevented, currentTarget, composed,
  7379.                   stopPropagation, stopImmediatePropagation, preventDefault
  7380.                 };
  7381.               })(evt);
  7382.               targetCnt.showContextMenu.call(fakeTargetCnt, fakeEvent);
  7383.  
  7384.  
  7385.             } catch (e) {
  7386.               console.warn(e);
  7387.               propertyCounter = 7;
  7388.  
  7389.             }
  7390.             if (propertyCounter !== 5) {
  7391.               console.log('Error in prerequest for showContextMenu', propertyCounter);
  7392.               return;
  7393.             }
  7394.  
  7395.             pm1.assignLock(targetCnt, p1Timeout);
  7396.  
  7397.           }
  7398.  
  7399.  
  7400.  
  7401.  
  7402.  
  7403.  
  7404.         }, true);
  7405.  
  7406.  
  7407.       }
  7408.  
  7409.  
  7410.  
  7411.       /*
  7412.  
  7413.       const w=new Set(); for(const a of document.getElementsByTagName('*')) if(a.showContextMenu && a.showContextMenu_) w.add(a.is||''); console.log([...w.keys()])
  7414.  
  7415.       */
  7416.  
  7417.       whenDefinedMultiple([
  7418.         "yt-live-chat-ticker-sponsor-item-renderer",
  7419.         "yt-live-chat-banner-header-renderer",
  7420.         "yt-live-chat-text-message-renderer",
  7421.         "ytd-sponsorships-live-chat-gift-purchase-announcement-renderer",
  7422.         "ytd-sponsorships-live-chat-header-renderer",
  7423.         "ytd-sponsorships-live-chat-gift-redemption-announcement-renderer",
  7424.  
  7425.         "yt-live-chat-paid-sticker-renderer",
  7426.         "yt-live-chat-viewer-engagement-message-renderer",
  7427.         "yt-live-chat-paid-message-renderer"
  7428.  
  7429.  
  7430.  
  7431.  
  7432.       ]).then(sTags => {
  7433.  
  7434.         mightFirstCheckOnYtInit();
  7435.         groupCollapsed("YouTube Super Fast Chat", " | fixShowContextMenu");
  7436.         console.log("[Begin]");
  7437.  
  7438.  
  7439.         const __showContextMenu_mutex__ = new Mutex();
  7440.         let __showContextMenu_mutex_unlock__ = null;
  7441.         let lastShowMenuTarget = null;
  7442.  
  7443.  
  7444.  
  7445.  
  7446.         const wm37 = new WeakMap();
  7447.  
  7448.         const dProto = {
  7449.  
  7450.  
  7451.           // CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN
  7452.  
  7453.           __cacheResolvedEndpointData__: (endpoint, a, doDeepCopy) => {
  7454.             if (a) {
  7455.               if (doDeepCopy) a = deepCopy(a);
  7456.               wm37.set(endpoint, a);
  7457.             } else {
  7458.               wm37.remove(endpoint);
  7459.             }
  7460.           },
  7461.           __getCachedEndpointData__: function (endpoint) {
  7462.             endpoint = endpoint || (this.data || 0).contextMenuEndpoint || 0;
  7463.             if (endpoint) return wm37.get(endpoint);
  7464.             return null;
  7465.           },
  7466.           /** @type {(resolvedEndpoint: any) => void 0} */
  7467.           __showCachedContextMenu__: function (resolvedEndpoint) { // non-null
  7468.  
  7469.             resolvedEndpoint = deepCopy(resolvedEndpoint);
  7470.             // let b = deepCopy(resolvedEndpoint, ['trackingParams', 'clickTrackingParams'])
  7471.             Promise.resolve(resolvedEndpoint).then(() => {
  7472.               this.__showContextMenu_skip_cacheResolvedEndpointData__ = 1;
  7473.               this.showContextMenu_(resolvedEndpoint);
  7474.               this.__showContextMenu_skip_cacheResolvedEndpointData__ = 0;
  7475.             });
  7476.  
  7477.  
  7478.           },
  7479.  
  7480.  
  7481.  
  7482.           showContextMenuForCacheReopen: function (a) {
  7483.             if (!this.__showContextMenu_forceNativeRequest__) {
  7484.               const endpoint = (this.data || 0).contextMenuEndpoint || 0;
  7485.               if (endpoint) {
  7486.                 const resolvedEndpoint = this.__getCachedEndpointData__(endpoint);
  7487.                 if (resolvedEndpoint) {
  7488.                   this.__showCachedContextMenu__(resolvedEndpoint);
  7489.                   a && a.stopPropagation()
  7490.                   return;
  7491.                 }
  7492.               }
  7493.             }
  7494.             return this.showContextMenu37(a);
  7495.           },
  7496.  
  7497.           showContextMenuForCacheReopen_: function (a) {
  7498.             if (!this.__showContextMenu_skip_cacheResolvedEndpointData__) {
  7499.               const endpoint = (this.data || 0).contextMenuEndpoint || 0;
  7500.               if (endpoint) {
  7501.                 const f = this.__cacheResolvedEndpointData__;
  7502.                 if (typeof f === 'function') f(endpoint, a, true);
  7503.               }
  7504.             }
  7505.             return this.showContextMenu37_(a);
  7506.           },
  7507.  
  7508.           // ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU
  7509.  
  7510.           showContextMenuWithDisableScroll: function (a) {
  7511.  
  7512.             const endpoint = (this.data || 0).contextMenuEndpoint || 0;
  7513.             if (endpoint && typeof this.is === 'string' && this.menuVisible === false && this.menuOpen === false) {
  7514.  
  7515.               const parentComponent = this.parentComponent;
  7516.               if (parentComponent && parentComponent.is === 'yt-live-chat-item-list-renderer' && parentComponent.contextMenuOpen === false && parentComponent.allowScroll === true) {
  7517.                 parentComponent.allowScroll = false;
  7518.               }
  7519.             }
  7520.  
  7521.             return this.showContextMenu48.apply(this, arguments);
  7522.  
  7523.           },
  7524.  
  7525.           // ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU
  7526.  
  7527.           __showContextMenu_mutex_unlock_isEmpty__: () => {
  7528.             return __showContextMenu_mutex_unlock__ === null;
  7529.           },
  7530.  
  7531.           __showContextMenu_assign_lock__: function (p) {
  7532.  
  7533.             const mutex = __showContextMenu_mutex__;
  7534.  
  7535.             mutex.lockWith(unlock => {
  7536.               p.then(unlock);
  7537.             });
  7538.  
  7539.           },
  7540.  
  7541.           showContextMenuWithMutex: function (a) {
  7542.             lastShowMenuTarget = this;
  7543.  
  7544.             if (this.__showContextMenu_sync_mode_request__) {
  7545.  
  7546.               return this.showContextMenu47(a);
  7547.             } else {
  7548.  
  7549.               const mutex = __showContextMenu_mutex__;
  7550.  
  7551.               mutex.lockWith(unlock => {
  7552.                 if (lastShowMenuTarget !== this) {
  7553.                   unlock();
  7554.                   return;
  7555.                 }
  7556.  
  7557.                 setTimeout(unlock, 800); // in case network failure
  7558.                 __showContextMenu_mutex_unlock__ = unlock;
  7559.                 try {
  7560.                   this.showContextMenu47(a);
  7561.                 } catch (e) {
  7562.                   console.warn(e);
  7563.                   unlock(); // in case function script error
  7564.                 }
  7565.  
  7566.               });
  7567.  
  7568.             }
  7569.  
  7570.  
  7571.           },
  7572.  
  7573.           showContextMenuWithMutex_: function (a) {
  7574.  
  7575.             if (__showContextMenu_mutex_unlock__ && this === lastShowMenuTarget) {
  7576.               __showContextMenu_mutex_unlock__();
  7577.               __showContextMenu_mutex_unlock__ = null;
  7578.             }
  7579.             return this.showContextMenu47_(a);
  7580.  
  7581.           }
  7582.  
  7583.         }
  7584.  
  7585.         for (const tag of sTags) { // ##tag##
  7586.  
  7587.  
  7588.  
  7589.           (() => {
  7590.  
  7591.             const dummy = document.createElement(tag);
  7592.  
  7593.             const cProto = getProto(dummy);
  7594.             if (!cProto || !cProto.attached) {
  7595.               console.warn(`proto.attached for ${tag} is unavailable.`);
  7596.               return;
  7597.             }
  7598.  
  7599.  
  7600.  
  7601.  
  7602.             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) {
  7603.  
  7604.               cProto.showContextMenu37_ = cProto.showContextMenu_;
  7605.               cProto.showContextMenu37 = cProto.showContextMenu;
  7606.  
  7607.               cProto.__showContextMenu_forceNativeRequest__ = 0;
  7608.               cProto.__cacheResolvedEndpointData__ = dProto.__cacheResolvedEndpointData__
  7609.               cProto.__getCachedEndpointData__ = dProto.__getCachedEndpointData__
  7610.               cProto.__showCachedContextMenu__ = dProto.__showCachedContextMenu__
  7611.  
  7612.               cProto.showContextMenu = dProto.showContextMenuForCacheReopen;
  7613.  
  7614.               cProto.showContextMenu_ = dProto.showContextMenuForCacheReopen_;
  7615.  
  7616.  
  7617.               console.log("CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN - OK", tag);
  7618.  
  7619.  
  7620.  
  7621.             } else {
  7622.  
  7623.               console.log("CACHE_SHOW_CONTEXT_MENU_FOR_REOPEN - NG", tag);
  7624.  
  7625.             }
  7626.  
  7627.  
  7628.  
  7629.             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) {
  7630.  
  7631.  
  7632.               cProto.showContextMenu48 = cProto.showContextMenu;
  7633.  
  7634.  
  7635.               cProto.showContextMenu = dProto.showContextMenuWithDisableScroll;
  7636.  
  7637.  
  7638.  
  7639.               console.log("ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU - OK", tag);
  7640.  
  7641.  
  7642.  
  7643.             } else {
  7644.  
  7645.               console.log("ADVANCED_NOT_ALLOW_SCROLL_FOR_SHOW_CONTEXT_MENU - NG", tag);
  7646.  
  7647.             }
  7648.  
  7649.  
  7650.  
  7651.  
  7652.  
  7653.             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) {
  7654.  
  7655.               cProto.showContextMenu47_ = cProto.showContextMenu_;
  7656.               cProto.showContextMenu47 = cProto.showContextMenu;
  7657.  
  7658.               cProto.__showContextMenu_mutex_unlock_isEmpty__ = dProto.__showContextMenu_mutex_unlock_isEmpty__;
  7659.               cProto.__showContextMenu_assign_lock__ = dProto.__showContextMenu_assign_lock__;
  7660.               cProto.showContextMenu = dProto.showContextMenuWithMutex;
  7661.               cProto.showContextMenu_ = dProto.showContextMenuWithMutex_;
  7662.  
  7663.               console.log("ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU - OK", tag);
  7664.  
  7665.  
  7666.  
  7667.             } else {
  7668.  
  7669.               console.log("ENABLE_MUTEX_FOR_SHOW_CONTEXT_MENU - NG", tag);
  7670.  
  7671.             }
  7672.  
  7673.  
  7674.  
  7675.  
  7676.           })();
  7677.  
  7678.         }
  7679.  
  7680.  
  7681.  
  7682.         console.log("[End]");
  7683.  
  7684.         console.groupEnd();
  7685.  
  7686.       }).catch(console.warn);
  7687.  
  7688.  
  7689.  
  7690.       customElements.whenDefined('tp-yt-iron-dropdown').then(() => {
  7691.  
  7692.         mightFirstCheckOnYtInit();
  7693.         groupCollapsed("YouTube Super Fast Chat", " | tp-yt-iron-dropdown hacks");
  7694.         console.log("[Begin]");
  7695.         (() => {
  7696.  
  7697.           const tag = "tp-yt-iron-dropdown";
  7698.           const dummy = document.createElement(tag);
  7699.  
  7700.           const cProto = getProto(dummy);
  7701.           if (!cProto || !cProto.attached) {
  7702.             console.warn(`proto.attached for ${tag} is unavailable.`);
  7703.             return;
  7704.           }
  7705.  
  7706.  
  7707.           if (USE_VANILLA_DEREF && typeof cProto.__deraf === 'function' && cProto.__deraf.length === 2 && !cProto.__deraf34 && fnIntegrity(cProto.__deraf) === '2.42.24') {
  7708.             cProto.__deraf_hn__ = function (sId, fn) {
  7709.               const rhKey = `_rafHandler_${sId}`;
  7710.               const m = this[rhKey] || (this[rhKey] = new WeakMap());
  7711.               if (m.has(fn)) return m.get(fn);
  7712.               const resFn = () => {
  7713.                 this.__rafs[sId] = null;
  7714.                 fn.call(this)
  7715.               };
  7716.               m.set(fn, resFn);
  7717.               m.set(resFn, resFn);
  7718.               return resFn;
  7719.             };
  7720.             cProto.__deraf34 = cProto.__deraf;
  7721.             cProto.__deraf = function (a, b) { // sId, fn
  7722.               let c = this.__rafs;
  7723.               null !== c[a] && cancelAnimationFrame(c[a]);
  7724.               c[a] = requestAnimationFrame(this.__deraf_hn__(a, b));
  7725.             };
  7726.             console.log("USE_VANILLA_DEREF - OK");
  7727.           } else {
  7728.             console.log("USE_VANILLA_DEREF - NG");
  7729.           }
  7730.  
  7731.           if (FIX_DROPDOWN_DERAF && typeof cProto.__deraf === 'function' && cProto.__deraf.length === 2 && !cProto.__deraf66) {
  7732.             cProto.__deraf66 = cProto.__deraf;
  7733.             cProto.__deraf = function (sId, fn) {
  7734.               if (this.__byPassRAF__) {
  7735.                 Promise.resolve().then(() => {
  7736.                   fn.call(this);
  7737.                 });
  7738.               }
  7739.               let r = this.__deraf66.apply(this, arguments);
  7740.               return r;
  7741.             }
  7742.             console.log("FIX_DROPDOWN_DERAF - OK");
  7743.           } else {
  7744.             console.log("FIX_DROPDOWN_DERAF - NG");
  7745.           }
  7746.  
  7747.  
  7748.           if (BOOST_MENU_OPENCHANGED_RENDERING && typeof cProto.__openedChanged === 'function' && !cProto.__mtChanged__ && fnIntegrity(cProto.__openedChanged) === '0.46.20') {
  7749.  
  7750.             let lastClose = null;
  7751.             let lastOpen = null;
  7752.             let cid = 0;
  7753.  
  7754.             cProto.__mtChanged__ = function (b) {
  7755.  
  7756.               Promise.resolve().then(() => {
  7757.                 this._applyFocus();
  7758.               }).then(() => {
  7759.                 b ? this._renderOpened() : this._renderClosed();
  7760.               }).catch(console.warn);
  7761.  
  7762.             };
  7763.  
  7764.             const __moChanged__ = () => {
  7765.               if (!cid) return;
  7766.               // console.log(553, !!lastOpen, !!lastClose);
  7767.               cid = 0;
  7768.               if (lastOpen && !lastClose && lastOpen.isAttached) {
  7769.                 lastOpen.__mtChanged__(1)
  7770.               } else if (lastClose && !lastOpen && lastClose.isAttached) {
  7771.                 lastClose.__mtChanged__(0);
  7772.               }
  7773.               lastOpen = null;
  7774.               lastClose = null;
  7775.             };
  7776.  
  7777.  
  7778.             if (typeof cProto._openedChanged === 'function' && !cProto._openedChanged66) {
  7779.               cProto._openedChanged66 = cProto._openedChanged;
  7780.               cProto._openedChanged = function () {
  7781.                 // this.__byPassRAF__ = !lastOpen ? true : false; // or just true?
  7782.                 this.__byPassRAF__ = true;
  7783.                 let r = this._openedChanged66.apply(this, arguments);
  7784.                 this.__byPassRAF__ = false;
  7785.                 return r;
  7786.               }
  7787.             }
  7788.  
  7789.             const pSetGet = (key, pdThis, pdBase) => {
  7790.               // note: this is not really a standard way for the getOwnPropertyDescriptors; but it is sufficient to make the job done
  7791.               return {
  7792.                 get: (pdThis[key] || 0).get || (pdBase[key] || 0).get,
  7793.                 set: (pdThis[key] || 0).set || (pdBase[key] || 0).set
  7794.               };
  7795.             };
  7796.  
  7797.             cProto.__modifiedMenuPropsFn__ = function () {
  7798.               const pdThis = Object.getOwnPropertyDescriptors(this.constructor.prototype)
  7799.               const pdBase = Object.getOwnPropertyDescriptors(this)
  7800.  
  7801.               const pdAutoFitOnAttach = pSetGet('autoFitOnAttach', pdThis, pdBase);
  7802.               const pdExpandSizingTargetForScrollbars = pSetGet('expandSizingTargetForScrollbars', pdThis, pdBase);
  7803.               const pdAllowOutsideScroll = pSetGet('allowOutsideScroll', pdThis, pdBase);
  7804.  
  7805.               if (pdAutoFitOnAttach.get || pdAutoFitOnAttach.set) {
  7806.                 console.warn('there is setter/getter for autoFitOnAttach');
  7807.                 return;
  7808.               }
  7809.               if (pdExpandSizingTargetForScrollbars.get || pdExpandSizingTargetForScrollbars.set) {
  7810.                 console.warn('there is setter/getter for expandSizingTargetForScrollbars');
  7811.                 return;
  7812.               }
  7813.               if (!pdAllowOutsideScroll.get || !pdAllowOutsideScroll.set) {
  7814.                 console.warn('there is NO setter-getter for allowOutsideScroll');
  7815.                 return;
  7816.               }
  7817.  
  7818.               let { autoFitOnAttach, expandSizingTargetForScrollbars, allowOutsideScroll } = this;
  7819.  
  7820.               this.__AllowOutsideScrollPD__ = pdAllowOutsideScroll;
  7821.  
  7822.               const fitEnable = CHAT_MENU_REFIT_ALONG_SCROLLING === 2;
  7823.  
  7824.               Object.defineProperties(this, {
  7825.                 autoFitOnAttach: {
  7826.                   get() {
  7827.                     if (fitEnable && this._modifiedMenuPropOn062__) return true;
  7828.                     return autoFitOnAttach;
  7829.                   },
  7830.                   set(nv) {
  7831.                     autoFitOnAttach = nv;
  7832.                     return true;
  7833.                   },
  7834.                   enumerable: true,
  7835.                   configurable: true
  7836.                 }, expandSizingTargetForScrollbars: {
  7837.                   get() {
  7838.                     if (fitEnable && this._modifiedMenuPropOn062__) return true;
  7839.                     return expandSizingTargetForScrollbars;
  7840.                   },
  7841.                   set(nv) {
  7842.                     expandSizingTargetForScrollbars = nv;
  7843.                     return true;
  7844.                   },
  7845.                   enumerable: true,
  7846.                   configurable: true
  7847.                 }, allowOutsideScroll: {
  7848.                   get() {
  7849.                     if (this._modifiedMenuPropOn062__) return true;
  7850.                     return allowOutsideScroll;
  7851.                   },
  7852.                   set(nv) {
  7853.                     allowOutsideScroll = nv;
  7854.                     this.__AllowOutsideScrollPD__.set.call(this, nv);
  7855.                     return true;
  7856.                   },
  7857.                   enumerable: true,
  7858.                   configurable: true
  7859.                 }
  7860.               })
  7861.             };
  7862.  
  7863.             /*
  7864.                // ***** position() to be changed. *****
  7865.               tp-yt-iron-dropdown[class], tp-yt-iron-dropdown[class] #contentWrapper, tp-yt-iron-dropdown[class] ytd-menu-popup-renderer[class] {
  7866.  
  7867.                   overflow: visible !important;
  7868.                   min-width: max-content !important;
  7869.                   max-width: max-content !important;
  7870.                   max-height: max-content !important;
  7871.                   min-height: max-content !important;
  7872.                   white-space: nowrap;
  7873.               }
  7874.  
  7875.             */
  7876.             if (FIX_MENU_POSITION_N_SIZING_ON_SHOWN && typeof cProto.position === 'function' && !cProto.position34 && typeof cProto.refit === 'function') {
  7877.  
  7878.               let m34 = 0;
  7879.               cProto.__refitByPosition__ = function () {
  7880.                 m34++;
  7881.                 if (m34 <= 0) m34 = 0;
  7882.                 if (m34 !== 1) return;
  7883.                 const hostElement = this.hostElement || this;
  7884.                 if (document.visibilityState === 'visible') {
  7885.                   const sizingTarget = this.sizingTarget;
  7886.                   if (!sizingTarget) {
  7887.                     m34 = 0;
  7888.                     return;
  7889.                   }
  7890.  
  7891.                   /*
  7892.                   let useVisibilityCollapse = true;
  7893.                   if (HTMLElement.prototype.querySelector.call(sizingTarget, 'yt-icon:empty')) {
  7894.                     useVisibilityCollapse = false;
  7895.                   }
  7896.  
  7897.                   if (useVisibilityCollapse) {
  7898.                     hostElement.style.visibility = 'collapse';
  7899.                     sizingTarget.style.visibility = 'collapse';
  7900.                   } else {
  7901.                     hostElement.setAttribute('rNgzQ', '');
  7902.                     sizingTarget.setAttribute('rNgzQ', '');
  7903.                   }
  7904.                   */
  7905.                   hostElement.setAttribute('rNgzQ', '');
  7906.                   sizingTarget.setAttribute('rNgzQ', '');
  7907.  
  7908.                   const gn = () => {
  7909.                     /*
  7910.                     if (useVisibilityCollapse) {
  7911.                       hostElement.style.visibility = '';
  7912.                       sizingTarget.style.visibility = '';
  7913.                     } else {
  7914.                       hostElement.removeAttribute('rNgzQ');
  7915.                       sizingTarget.removeAttribute('rNgzQ');
  7916.                     }
  7917.                     */
  7918.                     hostElement.removeAttribute('rNgzQ');
  7919.                     sizingTarget.removeAttribute('rNgzQ');
  7920.                   }
  7921.  
  7922.                   const an = async () => {
  7923.                     while (m34 >= 1) {
  7924.                       await renderReadyPn(sizingTarget);
  7925.                       if (this.opened && this.isAttached && sizingTarget.isConnected === true && sizingTarget === this.sizingTarget) {
  7926.                         if (sizingTarget.matches('ytd-menu-popup-renderer[slot="dropdown-content"].yt-live-chat-app')) this.refit();
  7927.                       }
  7928.                       m34--;
  7929.                     }
  7930.                     m34 = 0;
  7931.                     Promise.resolve().then(gn);
  7932.                   }
  7933.                   setTimeout(an, 4); // wait those resizing function calls
  7934.  
  7935.  
  7936.                 } else {
  7937.                   m34 = 0;
  7938.                 }
  7939.               }
  7940.               cProto.position34 = cProto.position
  7941.               cProto.position = function () {
  7942.                 if (this._positionInitialize_) {
  7943.                   this._positionInitialize_ = 0;
  7944.                   this.__refitByPosition__();
  7945.                 }
  7946.                 let r = cProto.position34.apply(this, arguments);
  7947.                 return r;
  7948.               }
  7949.               console.log("FIX_MENU_POSITION_ON_SHOWN - OK");
  7950.  
  7951.             } else {
  7952.  
  7953.               console.log("FIX_MENU_POSITION_ON_SHOWN - NG");
  7954.  
  7955.             }
  7956.  
  7957.  
  7958.  
  7959.             cProto.__openedChanged = function () {
  7960.               this._positionInitialize_ = 1;
  7961.               // this.removeAttribute('horizontal-align')
  7962.               // this.removeAttribute('vertical-align')
  7963.               if (typeof this.__menuTypeCheck__ !== 'boolean') {
  7964.                 this.__menuTypeCheck__ = true;
  7965.                 if (CHAT_MENU_SCROLL_UNLOCKING) {
  7966.                   this._modifiedMenuPropOn062__ = false;
  7967.                   // console.log(513, this.positionTarget && this.positionTarget.classList.contains('yt-live-chat-text-message-renderer'))
  7968.                   // this.autoFitOnAttach = true;
  7969.                   // this.expandSizingTargetForScrollbars = true;
  7970.                   // this.allowOutsideScroll = true;
  7971.                   // console.log(519,Object.getOwnPropertyDescriptors(this.constructor.prototype))
  7972.                   this.__modifiedMenuPropsFn__();
  7973.                   // this.constrain= function(){}
  7974.                   // this.position= function(){}
  7975.  
  7976.                   // this.autoFitOnAttach = true;
  7977.                   // this.expandSizingTargetForScrollbars = true;
  7978.                   // this.allowOutsideScroll = true;
  7979.                 }
  7980.               }
  7981.               if (CHAT_MENU_SCROLL_UNLOCKING && this.opened) {
  7982.                 let newValue = null;
  7983.                 const positionTarget = this.positionTarget;
  7984.                 if (positionTarget && positionTarget.classList.contains('yt-live-chat-text-message-renderer')) {
  7985.                   if (this._modifiedMenuPropOn062__ === false) {
  7986.                     newValue = true;
  7987.                   }
  7988.                 } else if (this._modifiedMenuPropOn062__ === true) {
  7989.                   newValue = false;
  7990.                 }
  7991.                 if (newValue !== null) {
  7992.                   const beforeAllowOutsideScroll = this.allowOutsideScroll;
  7993.                   this._modifiedMenuPropOn062__ = newValue;
  7994.                   const afterAllowOutsideScroll = this.allowOutsideScroll;
  7995.                   if (beforeAllowOutsideScroll !== afterAllowOutsideScroll) this.__AllowOutsideScrollPD__.set.call(this, afterAllowOutsideScroll);
  7996.                 }
  7997.               }
  7998.  
  7999.               if (this.opened) {
  8000.  
  8001.                 Promise.resolve().then(() => {
  8002.  
  8003.                   this._prepareRenderOpened();
  8004.                 }).then(() => {
  8005.                   this._manager.addOverlay(this);
  8006.                   if (this._manager._overlays.length === 1) {
  8007.                     lastOpen = this;
  8008.                     lastClose = null;
  8009.                   } else {
  8010.                     return 1;
  8011.                   }
  8012.                   // if (cid) {
  8013.                   //   clearTimeout(cid);
  8014.                   //   cid = -1;
  8015.                   //   this.__moChanged__();
  8016.                   //   cid = 0;
  8017.                   // } else {
  8018.                   //   cid = -1;
  8019.                   //   this.__moChanged__();
  8020.                   //   cid = 0;
  8021.                   // }
  8022.                   // cid = cid > 0 ? clearTimeout(cid) : 0;
  8023.                   // console.log(580, this.positionTarget && this.positionTarget.classList.contains('yt-live-chat-text-message-renderer'))
  8024.                   // cid = cid || setTimeout(__moChanged__, delay1);
  8025.                   cid = cid || requestAnimationFrame(__moChanged__);
  8026.                 }).then((r) => {
  8027.  
  8028.                   if (r) this.__mtChanged__(1);
  8029.                 }).catch(console.warn);
  8030.  
  8031.               } else {
  8032.                 Promise.resolve().then(() => {
  8033.                   this._manager.removeOverlay(this);
  8034.                   if (this._manager._overlays.length === 0) {
  8035.                     lastClose = this;
  8036.                     lastOpen = null;
  8037.                   } else {
  8038.                     return 1;
  8039.                   }
  8040.                   // cid = cid > 0 ? clearTimeout(cid) : 0;
  8041.                   // console.log(581, this.positionTarget && this.positionTarget.classList.contains('yt-live-chat-text-message-renderer'))
  8042.                   // cid = cid || setTimeout(__moChanged__, delay1);
  8043.                   cid = cid || requestAnimationFrame(__moChanged__);
  8044.                 }).then((r) => {
  8045.                   if (r) this.__mtChanged__(0);
  8046.                 }).catch(console.warn);
  8047.  
  8048.               }
  8049.  
  8050.             }
  8051.             console.log("BOOST_MENU_OPENCHANGED_RENDERING - OK");
  8052.  
  8053.           } else {
  8054.  
  8055.             assertor(() => fnIntegrity(cProto.__openedChanged, '0.46.20'));
  8056.             console.log("FIX_MENU_REOPEN_RENDER_PERFORMANC_1 - NG");
  8057.  
  8058.           }
  8059.  
  8060.  
  8061.           if (FIX_CLICKING_MESSAGE_MENU_DISPLAY_ON_MOUSE_CLICK && typeof cProto.__openedChanged === 'function' && !cProto.__openedChanged82) {
  8062.  
  8063.             cProto.__openedChanged82 = cProto.__openedChanged;
  8064.  
  8065.  
  8066.             cProto.__openedChanged = function () {
  8067.  
  8068.               // currentMenuPivotWR = null;
  8069.               // console.log(1480, '__openedChanged.A', this.positionTarget)
  8070.  
  8071.  
  8072.  
  8073.               // if (this.opened && this.positionTarget) {
  8074.  
  8075.               //   const positionTarget = this.positionTarget;
  8076.               //   console.log(1480, '__openedChanged.B', positionTarget)
  8077.               //   currentMenuPivotWR = mWeakRef(positionTarget);
  8078.  
  8079.               // }
  8080.  
  8081.               const positionTarget = this.positionTarget;
  8082.               currentMenuPivotWR = positionTarget ? mWeakRef(positionTarget) : null;
  8083.               return this.__openedChanged82.apply(this, arguments);
  8084.             }
  8085.           }
  8086.  
  8087.  
  8088.           // if(FIX_MENU_CAPTURE_SCROLL && typeof cProto.__onCaptureScroll === 'function' && !cProto.__onCaptureScroll66){
  8089.  
  8090.           //   cProto.__onCaptureScroll66 = cProto.__onCaptureScroll;
  8091.  
  8092.           //   cProto.__onCaptureScroll = function(a){
  8093.  
  8094.           //     const q = true;
  8095.           //     if(this.scrollAction === 'lock'  && q && this.opened){
  8096.  
  8097.           //       // console.log(9107, this.scrollAction, this.__isAnimating, this.opened, a); // lock; __isAnimating = false
  8098.           //       async function af() {
  8099.           //         this.__isAnimating && this._finishRenderOpened();
  8100.           //         if (!this.opened) return;
  8101.           //         this.__restoreScrollPosition();
  8102.           //         await new Promise(r => requestAnimationFrame(r));
  8103.           //         if (!this.opened) return;
  8104.           //         this.opened && this.__isAnimating && this._finishRenderOpened();
  8105.           //         if (!this.opened) return;
  8106.           //         this.__restoreScrollPosition();
  8107.           //         await new Promise(r => requestAnimationFrame(r));
  8108.           //         if (!this.opened) return;
  8109.           //         this.opened && this.__isAnimating && this._finishRenderOpened();
  8110.           //         if (!this.opened) return;
  8111.           //         this.opened && !this.__isAnimating && this.refit();
  8112.           //       }
  8113.           //       Promise.resolve().then(af);
  8114.  
  8115.           //        return cProto.__onCaptureScroll66.apply(this, arguments);
  8116.           //     }else{
  8117.  
  8118.           //       // console.log(9102, this.scrollAction, this.__isAnimating, this.opened, a); // lock
  8119.  
  8120.           //       return cProto.__onCaptureScroll66.apply(this, arguments);
  8121.           //     }
  8122.           //   }
  8123.           //   console.log("FIX_MENU_CAPTURE_SCROLL - OK");
  8124.           // }else{
  8125.           //   console.log("FIX_MENU_CAPTURE_SCROLL - NG");
  8126.  
  8127.           // }
  8128.  
  8129.  
  8130.         })();
  8131.  
  8132.         console.log("[End]");
  8133.  
  8134.         console.groupEnd();
  8135.  
  8136.       }).catch(console.warn);
  8137.  
  8138.  
  8139.  
  8140.  
  8141.  
  8142.  
  8143.  
  8144.  
  8145.       /*
  8146.  
  8147.  
  8148.  
  8149.  
  8150.  
  8151.           var FU = function() {
  8152.               var a = this;
  8153.               this.nextHandle_ = 1;
  8154.               this.clients_ = {};
  8155.               this.JSC$10323_callbacks_ = {};
  8156.               this.unsubscribeAsyncHandles_ = {};
  8157.               this.subscribe = vl(function(b, c, d) {
  8158.                   var e = Geb(b);
  8159.                   if (e in a.clients_)
  8160.                       e in a.unsubscribeAsyncHandles_ && Jq.cancel(a.unsubscribeAsyncHandles_[e]);
  8161.                   else {
  8162.                       a: {
  8163.                           var h = Geb(b), l;
  8164.                           for (l in a.unsubscribeAsyncHandles_) {
  8165.                               var m = a.clients_[l];
  8166.                               if (m instanceof KO) {
  8167.                                   delete a.clients_[l];
  8168.                                   delete a.JSC$10323_callbacks_[l];
  8169.                                   Jq.cancel(a.unsubscribeAsyncHandles_[l]);
  8170.                                   delete a.unsubscribeAsyncHandles_[l];
  8171.                                   i6a(m);
  8172.                                   m.objectId_ = new FQa(h);
  8173.                                   m.register();
  8174.                                   d = m;
  8175.                                   break a
  8176.                               }
  8177.                           }
  8178.                           d.objectSource = b.invalidationId.objectSource;
  8179.                           d.objectId = h;
  8180.                           if (b = b.webAuthConfigurationData)
  8181.                               b.multiUserSessionIndex && (d.sessionIndex = parseInt(b.multiUserSessionIndex, 10)),
  8182.                               b.pageId && (d.pageId = b.pageId);
  8183.                           d = new KO(d,a.handleInvalidationData_.bind(a));
  8184.                           d.register()
  8185.                       }
  8186.                       a.clients_[e] = d;
  8187.                       a.JSC$10323_callbacks_[e] = {}
  8188.                   }
  8189.                   d = a.nextHandle_++;
  8190.                   a.JSC$10323_callbacks_[e][d] = c;
  8191.                   return d
  8192.               })
  8193.           };
  8194.           FU.prototype.unsubscribe = function(a, b) {
  8195.               var c = Geb(a);
  8196.               if (c in this.JSC$10323_callbacks_ && (delete this.JSC$10323_callbacks_[c][b],
  8197.               !this.JSC$10323_callbacks_[c].length)) {
  8198.                   var d = this.clients_[c];
  8199.                   b = Jq.run(function() {
  8200.                       ei(d);
  8201.                       delete this.clients_[c];
  8202.                       delete this.unsubscribeAsyncHandles_[c]
  8203.                   }
  8204.                   .bind(this));
  8205.                   this.unsubscribeAsyncHandles_[c] = b
  8206.               }
  8207.           }
  8208.           ;
  8209.  
  8210.  
  8211.       */
  8212.  
  8213.  
  8214.  
  8215.  
  8216.       const onManagerFound = (dummyManager) => {
  8217.         if (!dummyManager || typeof dummyManager !== 'object') return;
  8218.  
  8219.         const mgrProto = dummyManager.constructor.prototype;
  8220.  
  8221.         let keyCallbackStore = '';
  8222.         for (const [key, v] of Object.entries(dummyManager)) {
  8223.           if (key.includes('_callbacks_')) keyCallbackStore = key;
  8224.         }
  8225.  
  8226.         if (!keyCallbackStore || typeof mgrProto.unsubscribe !== 'function' || mgrProto.unsubscribe.length !== 2) return;
  8227.  
  8228.         if (mgrProto.unsubscribe16) return;
  8229.  
  8230.         mgrProto.unsubscribe16 = mgrProto.unsubscribe;
  8231.  
  8232.         groupCollapsed("YouTube Super Fast Chat", " | *live-chat-manager* hacks");
  8233.         console.log("[Begin]");
  8234.  
  8235.  
  8236.         // const isEmptyObject = (a) => Object.keys(a).length === 0;
  8237.         const isEmptyObject = ((obj) => (firstKey(obj) === null));
  8238.  
  8239.         const idMapper = new Map();
  8240.  
  8241.         const convertId = function (objectId) {
  8242.           if (!objectId || typeof objectId !== 'string') return null;
  8243.  
  8244.           let result = idMapper.get(objectId)
  8245.           if (result) return result;
  8246.           result = atob(objectId.replace(/-/g, "+").replace(/_/g, "/"));
  8247.           idMapper.set(objectId, result)
  8248.           return result;
  8249.         }
  8250.  
  8251.  
  8252.         const rafHandleHolder = [];
  8253.  
  8254.         let pzw = 0;
  8255.         let lza = 0;
  8256.         const rafHandlerFn = () => {
  8257.           pzw = 0;
  8258.           if (rafHandleHolder.length === 1) {
  8259.             const f = rafHandleHolder[0];
  8260.             rafHandleHolder.length = 0;
  8261.             f();
  8262.           } else if (rafHandleHolder.length > 1) {
  8263.             const arr = rafHandleHolder.slice(0);
  8264.             rafHandleHolder.length = 0;
  8265.             for (const fn of arr) fn();
  8266.           }
  8267.         };
  8268.  
  8269.  
  8270.         if (CHANGE_MANAGER_UNSUBSCRIBE) {
  8271.  
  8272.           const checkIntegrityForSubscribe = (mgr) => {
  8273.             if (mgr
  8274.               && typeof mgr.unsubscribe16 === 'function' && mgr.unsubscribe16.length === 2
  8275.               && typeof mgr.subscribe18 === 'function' && (mgr.subscribe18.length === 0 || mgr.subscribe18.length === 3)) {
  8276.  
  8277.               const ns = new Set(Object.keys(mgr));
  8278.               const ms = new Set(Object.keys(mgr.constructor.prototype));
  8279.  
  8280.               if (ns.size >= 6 && ms.size >= 4) {
  8281.                 // including 'subscribe18'
  8282.                 // 'unsubscribe16', 'subscribe19'
  8283.  
  8284.                 let r = 0;
  8285.                 for (const k of ['nextHandle_', 'clients_', keyCallbackStore, 'unsubscribeAsyncHandles_', 'subscribe', 'subscribe18']) {
  8286.                   r += ns.has(k) ? 1 : 0;
  8287.                 }
  8288.                 for (const k of ['unsubscribe', 'handleInvalidationData_', 'unsubscribe16', 'subscribe19']) {
  8289.                   r += ms.has(k) ? 1 : 0;
  8290.                 }
  8291.                 if (r === 10) {
  8292.                   const isObject = (c) => (c || 0).constructor === Object;
  8293.  
  8294.                   if (isObject(mgr['clients_']) && isObject(mgr[keyCallbackStore]) && isObject(mgr['unsubscribeAsyncHandles_'])) {
  8295.  
  8296.                     return true;
  8297.                   }
  8298.  
  8299.  
  8300.                 }
  8301.  
  8302.               }
  8303.  
  8304.  
  8305.             }
  8306.             return false;
  8307.           }
  8308.  
  8309.           mgrProto.subscribe19 = function (o, f, opts) {
  8310.  
  8311.             const ct_clients_ = this.clients_ || 0;
  8312.             const ct_handles_ = this.unsubscribeAsyncHandles_ || 0;
  8313.  
  8314.             if (this.__doCustomSubscribe__ !== true || !ct_clients_ || !ct_handles_) return this.subscribe18.apply(this, arguments);
  8315.  
  8316.             let objectId = ((o || 0).invalidationId || 0).objectId;
  8317.             if (!objectId) return this.subscribe18.apply(this, arguments);
  8318.             objectId = convertId(objectId);
  8319.  
  8320.             // console.log('subscribe', objectId, ct_clients_[objectId], arguments);
  8321.  
  8322.             if (ct_clients_[objectId]) {
  8323.               if (ct_handles_[objectId] < 0) delete ct_handles_[objectId];
  8324.             }
  8325.  
  8326.             return this.subscribe18.apply(this, arguments);
  8327.           }
  8328.  
  8329.           mgrProto.unsubscribe = function (o, d) {
  8330.             if (!this.subscribe18 && typeof this.subscribe === 'function') {
  8331.               this.subscribe18 = this.subscribe;
  8332.               this.subscribe = this.subscribe19;
  8333.               this.__doCustomSubscribe__ = checkIntegrityForSubscribe(this);
  8334.             }
  8335.             const ct_clients_ = this.clients_;
  8336.             const ct_handles_ = this.unsubscribeAsyncHandles_;
  8337.             if (this.__doCustomSubscribe__ !== true || !ct_clients_ || !ct_handles_) return this.unsubscribe16.apply(this, arguments);
  8338.  
  8339.             let objectId = ((o || 0).invalidationId || 0).objectId;
  8340.             if (!objectId) return this.unsubscribe16.apply(this, arguments);
  8341.  
  8342.             objectId = convertId(objectId);
  8343.  
  8344.  
  8345.             // console.log('unsubscribe', objectId, ct_clients_[objectId], arguments);
  8346.  
  8347.             const callbacks = this[keyCallbackStore] || 0;
  8348.             const callbackObj = callbacks[objectId] || 0;
  8349.  
  8350.  
  8351.             if (callbackObj && (delete callbackObj[d], isEmptyObject(callbackObj))) {
  8352.               const w = ct_clients_[objectId];
  8353.               --lza;
  8354.               if (lza < -1e9) lza = -1;
  8355.               const qta = lza;
  8356.               rafHandleHolder.push(() => {
  8357.                 if (qta === ct_handles_[objectId]) {
  8358.                   const o = {
  8359.                     callbacks, callbackObj,
  8360.                     client: ct_clients_[objectId],
  8361.                     handle: ct_handles_[objectId]
  8362.                   };
  8363.                   let p = 0;
  8364.                   try {
  8365.                     if (ct_clients_[objectId] === w) {
  8366.                       w && "function" === typeof w.dispose && w.dispose();
  8367.                       delete ct_clients_[objectId];
  8368.                       delete ct_handles_[objectId];
  8369.                       p = 1;
  8370.                     } else {
  8371.                       // w && "function" === typeof w.dispose && w.dispose();
  8372.                       // delete ct_clients_[objectId];
  8373.                       // delete ct_handles_[objectId];
  8374.                       p = 2;
  8375.                     }
  8376.                   } catch (e) {
  8377.                     console.warn(e);
  8378.                   }
  8379.                   console.log(`unsubscribed: ${p}`, this, o);
  8380.                 }
  8381.               });
  8382.               ct_handles_[objectId] = qta;
  8383.               if (pzw === 0) {
  8384.                 pzw = requestAnimationFrame(rafHandlerFn);
  8385.               }
  8386.             }
  8387.           }
  8388.  
  8389.  
  8390.           console.log("CHANGE_MANAGER_UNSUBSCRIBE - OK")
  8391.  
  8392.         } else {
  8393.  
  8394.           console.log("CHANGE_MANAGER_UNSUBSCRIBE - NG")
  8395.         }
  8396.  
  8397.         console.log("[End]");
  8398.  
  8399.         console.groupEnd();
  8400.  
  8401.       }
  8402.  
  8403.  
  8404.  
  8405.       /*
  8406.  
  8407.  
  8408.               a.prototype.async = function(e, h) {
  8409.                   return 0 < h ? Iq.run(e.bind(this), h) : ~Kq.run(e.bind(this))
  8410.               }
  8411.               ;
  8412.               a.prototype.cancelAsync = function(e) {
  8413.                   0 > e ? Kq.cancel(~e) : Iq.cancel(e)
  8414.               }
  8415.  
  8416.       */
  8417.  
  8418.  
  8419.       (FASTER_ICON_RENDERING && Promise.all(
  8420.         [
  8421.           customElements.whenDefined("yt-icon-shape"),
  8422.           customElements.whenDefined("yt-icon")
  8423.           //  document.createElement('icon-shape'),
  8424.         ]
  8425.       )).then(() => {
  8426.         let cq = 0;
  8427.         let dummys = [document.createElement('yt-icon-shape'), document.createElement('yt-icon')]
  8428.         for (const dummy of dummys) {
  8429.           let cProto = getProto(dummy);
  8430.           if (cProto && typeof cProto.shouldRenderIconShape === 'function' && !cProto.shouldRenderIconShape571 && cProto.shouldRenderIconShape.length === 1) {
  8431.             assertor(() => fnIntegrity(cProto.shouldRenderIconShape, '1.70.38'));
  8432.             cq++;
  8433.             cProto.shouldRenderIconShape571 = cProto.shouldRenderIconShape;
  8434.             cProto.shouldRenderIconShape = function (a) {
  8435.               if (this.isAnimatedIcon) return this.shouldRenderIconShape571(a);
  8436.               if (!this.iconType || !this.iconShapeData) return this.shouldRenderIconShape571(a);
  8437.               if (!this.iconName) return this.shouldRenderIconShape571(a);
  8438.               return false;
  8439.               // console.log(1051, this.iconType)
  8440.               // console.log(1052, this.iconShapeData)
  8441.               // console.log(1053, this.isAnimatedIcon)
  8442.             }
  8443.           }
  8444.           // if(cProto && cProto.switchTemplateAtRegistration){
  8445.           //   cProto.switchTemplateAtRegistration = false;
  8446.           // }
  8447.         }
  8448.         if (cq === 1) {
  8449.           console.log("modified shouldRenderIconShape - Y")
  8450.         } else {
  8451.           console.log("modified shouldRenderIconShape - N", cq)
  8452.         }
  8453.       });
  8454.  
  8455.       customElements.whenDefined("yt-invalidation-continuation").then(() => {
  8456.  
  8457.         let __dummyManager__ = null;
  8458.  
  8459.         mightFirstCheckOnYtInit();
  8460.         groupCollapsed("YouTube Super Fast Chat", " | yt-invalidation-continuation hacks");
  8461.         console.log("[Begin]");
  8462.         (() => {
  8463.  
  8464.           const tag = "yt-invalidation-continuation"
  8465.           const dummy = document.createElement(tag);
  8466.  
  8467.           const cProto = getProto(dummy);
  8468.           if (!cProto || !cProto.attached) {
  8469.             console.warn(`proto.attached for ${tag} is unavailable.`);
  8470.             return;
  8471.           }
  8472.  
  8473.           const dummyManager = insp(dummy).manager_ || 0;
  8474.           __dummyManager__ = dummyManager;
  8475.  
  8476.           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) {
  8477.  
  8478.  
  8479.             const rafHub = new RAFHub();
  8480.  
  8481.             rafHub.keepRAF = true;
  8482.             cProto.async71 = cProto.async;
  8483.             cProto.cancelAsync71 = cProto.cancelAsync;
  8484.  
  8485.             // mostly for subscription timeoutMs 10000ms
  8486.             let mcw = 1; // 1, 3, 5, ...
  8487.             let arr = new Map();
  8488.  
  8489.             let __asyncInited__ = 0;
  8490.             let __timeoutStartId__ = null;
  8491.             const __asyncInit__ = () => {
  8492.  
  8493.               if (__asyncInited__) return;
  8494.               __asyncInited__ = 1;
  8495.  
  8496.               __timeoutStartId__ = setTimeout(() => { });
  8497.               mcw = __timeoutStartId__ * 2 + 1;
  8498.  
  8499.               setInterval(() => {
  8500.  
  8501.                 if (!arr.length) return;
  8502.  
  8503.                 const p = Date.now();
  8504.                 let deleteKeys = [];
  8505.                 arr.forEach((entry, key) => {
  8506.  
  8507.  
  8508.                   if (entry.cid === -1) {
  8509.                     entry.cid = -2;
  8510.                   } else if (entry.cid === -2) {
  8511.  
  8512.                     let offset = p - entry.add
  8513.                     if (offset < 0) offset = 0;
  8514.                     let delay2 = entry.delay - offset;
  8515.                     if (delay2 < 0) delay2 = 0;
  8516.                     entry.cid = setTimeout(entry.q(), delay2);
  8517.                     entry.q = null;
  8518.  
  8519.                   } else if (entry.add + entry.delay < p) {
  8520.                     deleteKeys.push(key);
  8521.  
  8522.                   }
  8523.  
  8524.                 })
  8525.  
  8526.                 for (const key of deleteKeys) arr.delete(key);
  8527.  
  8528.               }, 2000)
  8529.  
  8530.             }
  8531.  
  8532.  
  8533.  
  8534.  
  8535.             cProto.async = function (e, h) {
  8536.  
  8537.               if (!(0 < h)) return this.async71(e, h); // unknown timing Fn
  8538.  
  8539.               if (h < 8000) return this.async71(e, h) * 2; // native setTimeout
  8540.  
  8541.               if (typeof h !== 'number') return this.async71(e, h); // exceptional case
  8542.  
  8543.  
  8544.               if (!this.__asyncInited__) {
  8545.                 this.__asyncInited__ = 1;
  8546.                 __asyncInit__();
  8547.               }
  8548.               mcw += 2; // 2K+3, 2K+4, ...
  8549.               if (mcw > 1e9) mcw = mcw % 1e4;
  8550.               const cid = mcw;
  8551.               const q = () => {
  8552.                 return () => {
  8553.                   console.log('async h > 8000');
  8554.                   e.call(this);
  8555.                 }
  8556.               }
  8557.               // setTimeout(q, delay)
  8558.               arr.set(cid, {
  8559.                 cid: -1, // -1 -> -2 -> cid
  8560.                 add: Date.now(),
  8561.                 q,
  8562.                 delay: h
  8563.               });
  8564.               // console.log('cid-async', cid)
  8565.               return cid;
  8566.  
  8567.             }
  8568.  
  8569.  
  8570.             cProto.cancelAsync = function (e) {
  8571.  
  8572.               if (typeof e !== 'number') return this.cancelAsync71(e); // exceptional case
  8573.  
  8574.               // console.log('cid-unasync', e)
  8575.  
  8576.               if (0 > e) return this.cancelAsync71(e); // unknown timing fn
  8577.  
  8578.               if (e > __timeoutStartId__ * 2) { // __timeoutStartId__ is recorded and min is 2K+1
  8579.  
  8580.                 if ((e % 2) === 0) return this.cancelAsync71(e / 2); // 2(K+1), 2(K+2), ...
  8581.  
  8582.                 if (!arr.has(e)) return; // duplciated cancel
  8583.  
  8584.                 const entry = arr.get(e);
  8585.                 if (entry.cid < 0) {
  8586.                   entry.cid = 0;
  8587.                   arr.delete(e);
  8588.                 } else {
  8589.                   clearTimeout(entry.cid); // cid >= 1
  8590.                   entry.cid = 0;
  8591.                   arr.delete(e);
  8592.                 }
  8593.  
  8594.               } else {
  8595.  
  8596.                 return this.cancelAsync71(e);
  8597.  
  8598.               }
  8599.  
  8600.             }
  8601.  
  8602.             console.log("CHANGE_DATA_FLUSH_ASYNC - OK");
  8603.  
  8604.           } else {
  8605.             console.log("CHANGE_DATA_FLUSH_ASYNC - NOT REQUIRED");
  8606.  
  8607.           }
  8608.  
  8609.         })();
  8610.  
  8611.         console.log("[End]");
  8612.  
  8613.         console.groupEnd();
  8614.  
  8615.  
  8616.  
  8617.         onManagerFound(__dummyManager__);
  8618.  
  8619.       }).catch(console.warn);
  8620.  
  8621.  
  8622.  
  8623.  
  8624.       if (INTERACTIVITY_BACKGROUND_ANIMATION >= 1) {
  8625.  
  8626.  
  8627.         customElements.whenDefined("yt-live-interactivity-component-background").then(() => {
  8628.  
  8629.  
  8630.           mightFirstCheckOnYtInit();
  8631.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-interactivity-component-background hacks");
  8632.           console.log("[Begin]");
  8633.           (() => {
  8634.  
  8635.             const tag = "yt-live-interactivity-component-background"
  8636.             const dummy = document.createElement(tag);
  8637.  
  8638.             const cProto = getProto(dummy);
  8639.             if (!cProto || !cProto.attached) {
  8640.               console.warn(`proto.attached for ${tag} is unavailable.`);
  8641.               return;
  8642.             }
  8643.  
  8644.  
  8645.             cProto.__toStopAfterRun__ = function (hostElement) {
  8646.               let mo = new MutationObserver(() => {
  8647.                 mo.disconnect();
  8648.                 mo.takeRecords();
  8649.                 mo = null;
  8650.                 this.lottieAnimation && this.lottieAnimation.stop(); // primary
  8651.                 foregroundPromiseFn().then(() => { // if the lottieAnimation is started with rAf triggering
  8652.                   this.lottieAnimation && this.lottieAnimation.stop(); // fallback
  8653.                 });
  8654.               });
  8655.               mo.observe(hostElement, { subtree: true, childList: true });
  8656.             }
  8657.  
  8658.             if (INTERACTIVITY_BACKGROUND_ANIMATION >= 1 && typeof cProto.maybeLoadAnimationBackground === 'function' && !cProto.maybeLoadAnimationBackground77 && cProto.maybeLoadAnimationBackground.length === 0) {
  8659.  
  8660.               cProto.maybeLoadAnimationBackground77 = cProto.maybeLoadAnimationBackground;
  8661.               cProto.maybeLoadAnimationBackground = function () {
  8662.                 let toRun = true;
  8663.                 let stopAfterRun = false;
  8664.                 if (!this.__bypassDisableAnimationBackground__) {
  8665.                   let doFix = false;
  8666.                   if (INTERACTIVITY_BACKGROUND_ANIMATION === 1) {
  8667.                     if (!this.lottieAnimation) {
  8668.                       doFix = true;
  8669.                     }
  8670.                   } else if (INTERACTIVITY_BACKGROUND_ANIMATION === 2) {
  8671.                     doFix = true;
  8672.                   }
  8673.                   if (doFix) {
  8674.                     if (this.useAnimationBackground === true) {
  8675.                       console.log('DISABLE_INTERACTIVITY_BACKGROUND_ANIMATION', this.lottieAnimation);
  8676.                     }
  8677.                     toRun = true;
  8678.                     stopAfterRun = true;
  8679.                   }
  8680.                 }
  8681.                 if (toRun) {
  8682.                   if (stopAfterRun && (this.hostElement instanceof HTMLElement)) {
  8683.                     this.__toStopAfterRun__(this.hostElement); // primary
  8684.                   }
  8685.                   const r = this.maybeLoadAnimationBackground77.apply(this, arguments);
  8686.                   if (stopAfterRun && this.lottieAnimation) {
  8687.                     this.lottieAnimation.stop(); // fallback if no mutation
  8688.                   }
  8689.                   return r;
  8690.                 }
  8691.               }
  8692.  
  8693.               console.log(`INTERACTIVITY_BACKGROUND_ANIMATION${INTERACTIVITY_BACKGROUND_ANIMATION} - OK`);
  8694.  
  8695.             } else {
  8696.               console.log(`INTERACTIVITY_BACKGROUND_ANIMATION${INTERACTIVITY_BACKGROUND_ANIMATION} - NG`);
  8697.  
  8698.             }
  8699.  
  8700.           })();
  8701.  
  8702.           console.log("[End]");
  8703.  
  8704.           console.groupEnd();
  8705.  
  8706.  
  8707.         }).catch(console.warn);
  8708.  
  8709.       }
  8710.  
  8711.  
  8712.       if (DELAY_FOCUSEDCHANGED) {
  8713.  
  8714.         customElements.whenDefined("yt-live-chat-text-input-field-renderer").then(() => {
  8715.  
  8716.  
  8717.           mightFirstCheckOnYtInit();
  8718.           groupCollapsed("YouTube Super Fast Chat", " | yt-live-chat-text-input-field-renderer hacks");
  8719.           console.log("[Begin]");
  8720.           (() => {
  8721.  
  8722.             const tag = "yt-live-chat-text-input-field-renderer"
  8723.             const dummy = document.createElement(tag);
  8724.  
  8725.             const cProto = getProto(dummy);
  8726.             if (!cProto || !cProto.attached) {
  8727.               console.warn(`proto.attached for ${tag} is unavailable.`);
  8728.               return;
  8729.             }
  8730.  
  8731.             if (DELAY_FOCUSEDCHANGED && typeof cProto.focusedChanged === 'function' && cProto.focusedChanged.length === 0 && !cProto.focusedChanged372) {
  8732.               cProto.focusedChanged372 = cProto.focusedChanged;
  8733.               cProto.focusedChanged = function () {
  8734.                 Promise.resolve().then(() => {
  8735.                   if (this.isAttached === true) this.focusedChanged372();
  8736.                 });
  8737.               }
  8738.             }
  8739.  
  8740.           })();
  8741.  
  8742.           console.log("[End]");
  8743.  
  8744.           console.groupEnd();
  8745.  
  8746.         });
  8747.  
  8748.       }
  8749.  
  8750.  
  8751.     }
  8752.  
  8753.  
  8754.  
  8755.  
  8756.     promiseForCustomYtElementsReady.then(onRegistryReadyForDOMOperations);
  8757.  
  8758.     const fixJsonParse = () => {
  8759.  
  8760.       let p1 = window.onerror;
  8761.  
  8762.       try {
  8763.         JSON.parse("{}");
  8764.       } catch (e) {
  8765.         console.warn(e);
  8766.       }
  8767.  
  8768.       let p2 = window.onerror;
  8769.  
  8770.       if (p1 !== p2) {
  8771.  
  8772.  
  8773.         console.groupCollapsed(`%c${"YouTube Super Fast Chat"}%c${" | JS Engine Issue Found"}`,
  8774.           "background-color: #010502; color: #fe806a; font-weight: 700; padding: 2px;",
  8775.           "background-color: #010502; color: #fe806a; font-weight: 300; padding: 2px;"
  8776.         );
  8777.  
  8778.         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");
  8779.  
  8780.         console.groupEnd();
  8781.  
  8782.       }
  8783.  
  8784.     }
  8785.  
  8786.     if (CHECK_JSONPRUNE) {
  8787.       promiseForCustomYtElementsReady.then(fixJsonParse);
  8788.     }
  8789.  
  8790.   });
  8791.  
  8792.  
  8793.  
  8794. })({ IntersectionObserver });

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