☰

Tabview Youtube

Make comments and lists into tabs for YouTube Videos

当前为 2022-07-16 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Tabview Youtube
  3. // @name:en      Tabview Youtube
  4. // @name:jp      Tabview Youtube
  5. // @name:zh-tw   Tabview Youtube
  6. // @name:zh-cn   Tabview Youtube
  7. // @namespace    http://tampermonkey.net/
  8. // @version     2.4.13
  9. // @license     MIT https://github.com/cyfung1031/Tabview-Youtube/blob/main/LICENSE
  10. // @description     Make comments and lists into tabs for YouTube Videos
  11. // @description:en  Make comments and lists into tabs for YouTube Videos
  12. // @description:jp  YouTube動画のコメントやリストなどをタブに作成します
  13. // @description:zh-tw  把Youtube Videos中的評論及影片清單製作成Tabs
  14. // @description:zh-cn  把Youtube Videos中的评论及视频列表制作成Tabs
  15. // @author       CY Fung
  16. // @match     https://www.youtube.com/*
  17. // @icon         https://github.com/cyfung1031/Tabview-Youtube/raw/main/images/icon128p.png
  18. // @run-at      document-start
  19. // @grant       GM_getResourceText
  20. // @resource     contentCSS https://raw.githubusercontent.com/cyfung1031/Tabview-Youtube/facd1e8b883b9dbb7e1150bc3d8ee14165acdd93/css/style_content.css
  21. // @resource     injectionJS1 https://raw.githubusercontent.com/cyfung1031/Tabview-Youtube/5350c243f54ff10a47abea69b95ec5f767b138cb/js/injection_script_1.js
  22. // @resource     injectionFixAutoComplete https://raw.githubusercontent.com/cyfung1031/Tabview-Youtube/5350c243f54ff10a47abea69b95ec5f767b138cb/js/injectionScript_fixAutoComplete.js
  23. // @require      https://cdnjs.cloudflare.com/ajax/libs/cash/8.1.0/cash.min.js
  24. // @noframes
  25. // ==/UserScript==
  26.  
  27. /* jshint esversion:6 */
  28.  
  29. function main($){
  30.     // MIT License
  31.     // https://github.com/cyfung1031/Tabview-Youtube/raw/main/js/content.js
  32.  
  33.  
  34.  
  35.  
  36.  
  37.  
  38.  
  39.  
  40.  
  41.  
  42.  
  43.  
  44.  
  45.  
  46.  
  47.  
  48.  
  49.  
  50.  
  51. -(function() {
  52.  
  53.   function inIframe() {
  54.     try {
  55.       return window.self !== window.top;
  56.     } catch (e) {
  57.       return true;
  58.     }
  59.   }
  60.  
  61.   if (inIframe()) return;
  62.  
  63.   if (!$) return;
  64.  
  65.   /**
  66.    * SVG resources:
  67.    * <div>Icons made by <a href="https://www.flaticon.com/authors/smashicons" title="Smashicons">Smashicons</a> from <a href="https://www.flaticon.com/" title="Flaticon">www.flaticon.com</a></div>
  68.    */
  69.  
  70.   const scriptVersionForExternal = '2022/05/07';
  71.  
  72.   const isMyScriptInChromeRuntime = () => typeof((((window || 0).chrome || 0).runtime || 0).getURL) == 'function'
  73.  
  74.   const svgComments = `<path d="M40.068 13.465l-34.138.07A5.94 5.94 0 0 0 0 19.465v21.141a5.94 5.94 0 0 0 5.93 5.929H12v10a1 
  75.   1 0 0 0 1.74.673l9.704-10.675 16.626-.068A5.94 5.94 0 0 0 46 40.536V19.395a5.94 5.94 0 0 0-5.932-5.93zM10 23.465h13a1 
  76.   1 0 1 1 0 2H10a1 1 0 1 1 0-2zm26 14H10a1 1 0 1 1 0-2h26a1 1 0 1 1 0 2zm0-6H10a1 1 0 1 1 0-2h26a1 1 0 1 1 0 
  77.   2zm18.072-28.93l-34.142-.07A5.94 5.94 0 0 0 14 8.395v3.124l26.064-.054c4.377 0 7.936 3.557 7.936 7.93v21.07.071 
  78.   2.087l3.26 3.586a1 1 0 0 0 1.74-.673v-10h1.07A5.94 5.94 0 0 0 60 29.607V8.465a5.94 5.94 0 0 0-5.928-5.93z"/>`.trim();
  79.  
  80.   const svgVideos = `<path d="M298 33c0-13.255-10.745-24-24-24H24C10.745 9 0 19.745 0 33v232c0 13.255 10.745 24 24 
  81.   24h250c13.255 0 24-10.745 24-24V33zM91 39h43v34H91V39zM61 259H30v-34h31v34zm0-186H30V39h31v34zm73 
  82.   186H91v-34h43v34zm-11-82.292v-55.417c0-8.25 5.868-11.302 12.77-6.783l40.237 26.272c6.902 4.519 6.958 11.914.056 
  83.   16.434l-40.321 26.277c-6.902 4.52-12.742 1.467-12.742-6.783zM207 259h-43v-34h43v34zm0-186h-43V39h43v34zm61 
  84.   186h-31v-34h31v34zm0-186h-31V39h31v34z"/>`.trim();
  85.  
  86.   const svgInfo = `<path d="M11.812 0C5.289 0 0 5.289 0 11.812s5.289 11.813 11.812 11.813 11.813-5.29 11.813-11.813S18.335 
  87.   0 11.812 0zm2.459 18.307c-.608.24-1.092.422-1.455.548s-.783.189-1.262.189c-.736 
  88.   0-1.309-.18-1.717-.539s-.611-.814-.611-1.367c0-.215.015-.435.045-.659a8.23 8.23 0 0 1 
  89.   .147-.759l.761-2.688c.067-.258.125-.503.171-.731a3.24 3.24 0 0 0 
  90.   .068-.633c0-.342-.071-.582-.212-.717s-.412-.201-.813-.201c-.196 
  91.   0-.398.029-.605.09s-.383.12-.529.176l.201-.828c.498-.203.975-.377 1.43-.521s.885-.218 1.29-.218c.731 0 1.295.178 
  92.   1.692.53s.594.812.594 1.376c0 .117-.014.323-.041.617a4.13 4.13 0 0 1-.152.811l-.757 
  93.   2.68c-.062.215-.117.461-.167.736s-.073.485-.073.626c0 .356.079.599.239.728s.435.194.827.194a2.4 2.4 0 0 0 .626-.097 
  94.   3.56 3.56 0 0 0 .506-.17l-.203.827zm-.134-10.878c-.353.328-.778.492-1.275.492s-.924-.164-1.28-.492a1.57 1.57 0 
  95.   0 1-.533-1.193c0-.465.18-.865.533-1.196a1.81 1.81 0 0 1 1.28-.497 1.79 1.79 0 0 1 1.275.497c.353.331.53.731.53 
  96.   1.196s-.177.865-.53 1.193z"/>`.trim();
  97.  
  98.   const svgPlayList = `<path d="M0 64h256v42.667H0zm0 85.333h256V192H0zm0 85.334h170.667v42.667H0zm341.333 
  99.   0v-85.334h-42.666v85.334h-85.334v42.666h85.334v85.334h42.666v-85.334h85.334v-42.666z"/>`.trim();
  100.  
  101.   // --- Youtube Video Testing : 
  102.   // Square Video: https://www.youtube.com/watch?v=L0RXVnRbFg8 
  103.   // Square Video: https://www.youtube.com/watch?v=bK_rKhMIotU
  104.   // ---
  105.  
  106.  
  107.   const LAYOUT_TWO_COLUMNS = 1;
  108.   const LAYOUT_THEATER = 2;
  109.   const LAYOUT_FULLSCREEN = 4;
  110.   const LAYOUT_CHATROOM = 8;
  111.   const LAYOUT_CHATROOM_COLLASPED = 16;
  112.   const LAYOUT_TAB_EXPANDED = 32;
  113.   const LAYOUT_ENGAGEMENT_PANEL_EXPAND = 64;
  114.  
  115.   const mtoInterval1 = 40;
  116.   const mtoInterval2 = 150;
  117.  
  118.   let lastVideoURL = null; // for less attribute set only
  119.  
  120.  
  121.  
  122.   const querySelectorFromAnchor = HTMLElement.prototype.querySelector;  // nodeType==1
  123.   const querySelectorAllFromAnchor = HTMLElement.prototype.querySelectorAll; // nodeType==1
  124.   const closestDOM = HTMLElement.prototype.closest;
  125.  
  126.  
  127.  
  128.   function scriptInjector(script_id, url_chrome, response_id){
  129.  
  130.     let res={
  131.       script_id: script_id,
  132.       inject: function(){
  133.  
  134.         let res = this, script_id = this.script_id;
  135.  
  136.         if(!document.querySelector(`script#${script_id}`)){
  137.           if (res.runtime_url){
  138.             addScriptByURL(res.runtime_url).id = script_id;
  139.           } else {
  140.             addScript(`${res.injection_script}`).id = script_id;
  141.           }
  142.         }
  143.  
  144.       }
  145.     }
  146.     res.script_id = script_id;
  147.     
  148.     if (isMyScriptInChromeRuntime()){
  149.       res.runtime_url = window.chrome.runtime.getURL(url_chrome)
  150.     } else {
  151.       res.injection_script = GM_getResourceText(response_id);
  152.     }
  153.  
  154.     return res;
  155.  
  156.  
  157.  
  158.   }
  159.  
  160.   const script_inject_facp = scriptInjector(
  161.     'userscript-tabview-injection-facp',
  162.     'js/injectionScript_fixAutoComplete.js',
  163.     "injectionFixAutoComplete");
  164.     
  165.   const script_inject_js1 = scriptInjector(
  166.     'userscript-tabview-injection-1',
  167.     'js/injection_script_1.js',
  168.     "injectionJS1");
  169.     
  170.  
  171.  
  172.  
  173.   
  174.   /** @type {WeakRef | null} */ 
  175.   const WeakRef = window.WeakRef;
  176.   const mWeakRef = WeakRef ? (o => o ? new WeakRef(o) : null) : (o => o || null);
  177.   /** @type {(wr: Object | null) => Object | null} */
  178.   const kRef = (wr => (wr && wr.deref) ? wr.deref() : wr);
  179.  
  180.  
  181.  
  182.   const nonCryptoRandStr_base = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
  183.   function nonCryptoRandStr(/** @type {number} */ n){
  184.     const result = new Array(n);
  185.     const baseStr = nonCryptoRandStr_base;
  186.     const bLen = baseStr.length;
  187.     for ( let i = 0; i < n; i++ ) {
  188.       let t = null
  189.       do {
  190.         t = baseStr.charAt(Math.floor(Math.random() * bLen));
  191.       }while(i===0 && 10-t>0)
  192.       result[i]=t;
  193.    }
  194.    return result.join('');
  195.   }
  196.  
  197. /**
  198.  * Class definition
  199.  * @property {string} propName - propriety description
  200.  * ...
  201.  */
  202.   class ObserverRegister{
  203.     
  204.     constructor(/** @type {()=>MutationObserver | IntersectionObserver} */ observerCreator){
  205.       let uid = null;
  206.       const uidStore = ObserverRegister.uidStore;
  207.       do{
  208.         uid = nonCryptoRandStr(5);
  209.       }while(uidStore[uid])
  210.       uidStore[uid] = true;
  211.       
  212.       /**
  213.        * uid is the unique string for each observer
  214.        * @type {string}
  215.        * @public
  216.        */
  217.       this.uid = uid;
  218.       
  219.       /**
  220.        * observerCreator is a function to create the observer
  221.        * @type {Function}
  222.        * @public
  223.        */
  224.       this.observerCreator = observerCreator
  225.       
  226.       /**
  227.        * observer is the actual observer object
  228.        * @type {MutationObserver | IntersectionObserver}
  229.        * @public
  230.        */
  231.       this.observer = null;
  232.     }
  233.     bindElement(/** @type {HTMLElement} */ elm, ...args){
  234.       if(elm.hasAttribute(`o3r-${this.uid}`))return false;
  235.       elm.setAttribute(`o3r-${this.uid}`,'')
  236.       if(this.observer===null){
  237.         this.observer=this.observerCreator();
  238.       }
  239.       this.observer.observe(elm, ...args)
  240.       return true
  241.     }
  242.     clear(/** @type {boolean} */ flag){
  243.       if(this.observer !== null){
  244.         //const uidStore = ObserverRegister.uidStore;
  245.         if(flag === true){
  246.           this.observer.takeRecords();
  247.           this.observer.disconnect();
  248.         }
  249.         this.observer = null;
  250.         for(const s of document.querySelectorAll(`[o3r-${this.uid}]`)) s.removeAttribute(`o3r-${this.uid}`)
  251.         //uidStore[this.uid]=false;
  252.         //this.uid = null;
  253.       }
  254.     }
  255.   }
  256.  
  257.   /**
  258.  * 'uidStore' is the static store of strings used.
  259.  * @static
  260.  */
  261.   ObserverRegister.uidStore = {}; //backward compatible with FireFox 55.
  262.  
  263.   const mtoMutation_watchFlexy = new ObserverRegister(()=>{
  264.     return new MutationObserver(FP.mtoNavF)
  265.   });
  266.   const sa_wflexy = mtoMutation_watchFlexy.uid;
  267.  
  268.   const mtoMutation_body = new ObserverRegister(()=>{
  269.     return new MutationObserver(FP.mtoBodyF)
  270.   });
  271.   const sa_body = mtoMutation_body.uid;
  272.  
  273.   const mtoFlexyAttr = new ObserverRegister(()=>{
  274.     return new MutationObserver(mtf_attrFlexy)
  275.   });
  276.   const sa_flexyAttr = mtoFlexyAttr.uid;
  277.  
  278.   const mtoVisibility_EngagementPanel = new ObserverRegister(()=>{
  279.     return new MutationObserver(FP.mtf_attrEngagementPanel)
  280.   });
  281.   const sa_epanel = mtoVisibility_EngagementPanel.uid;
  282.  
  283.   const mtoVisibility_Playlist = new ObserverRegister(()=>{
  284.     return new AttributeMutationObserver({
  285.       "hidden": FP.mtf_attrPlaylist
  286.     })
  287.   })
  288.   const sa_playlist = mtoVisibility_Playlist.uid;
  289.  
  290.   const mtoVisibility_Comments = new ObserverRegister(()=>{
  291.     return new AttributeMutationObserver({
  292.       "hidden": FP.mtf_attrComments
  293.     })
  294.   })
  295.   const sa_comments = mtoVisibility_Comments.uid;
  296.  
  297.  
  298.   const mtoVisibility_Chatroom = new ObserverRegister(()=>{
  299.     return new AttributeMutationObserver({
  300.       "collapsed": FP.mtf_attrChatroom
  301.     })
  302.   })
  303.   const sa_chatroom = mtoVisibility_Chatroom.uid;
  304.  
  305.  
  306.  
  307.  
  308.  
  309.   function tracer(key, cmp) {
  310.     if (cmp > 0) return tracer[key] === cmp;
  311.     return (tracer[key] = Date.now());
  312.   }
  313.  
  314.   function racer(key, f) {
  315.     let now = Date.now();
  316.     const kTime = `${key}$$1`
  317.     let t = racer[kTime] || 0;
  318.  
  319.     if (now < t) {
  320.       const kCount = `${key}$$2`;
  321.       racer[kCount] = (racer[kCount] || 0) + 1;
  322.       if (racer[kCount] === 1) {
  323.         let g = f;
  324.         requestAnimationFrame(() => {
  325.           racer[kCount] = 0;
  326.           g();
  327.           g = null;
  328.         })
  329.       }
  330.     } else {
  331.       racer[kTime] = now + 16;
  332.       f();
  333.     }
  334.   }
  335.  
  336.   class ScriptEF {
  337.     constructor() {
  338.       this._id = scriptEC;
  339.     }
  340.     isValid() {
  341.       return this._id === scriptEC;
  342.     }
  343.   }
  344.  
  345.   class Timeout {
  346.  
  347.     set(f, d, repeatCount) {
  348.       if (this.cid > 0) return;
  349.       let sEF = new ScriptEF();
  350.       if (repeatCount > 0) {
  351.  
  352.         let rc = repeatCount;
  353.         const g = () => {
  354.           this.cid = 0;
  355.           if (!sEF.isValid()) return;
  356.           let res = f();
  357.           if (--rc <= 0) return;
  358.           if (res === true) this.cid = timeline.setTimeout(g, d);
  359.         }
  360.         g();
  361.  
  362.       } else {
  363.  
  364.         const g = () => {
  365.           this.cid = 0;
  366.           if (!sEF.isValid()) return;
  367.           if (f() === true) this.cid = timeline.setTimeout(g, d);
  368.         }
  369.         this.cid = timeline.setTimeout(g, d);
  370.       }
  371.     }
  372.  
  373.     clear() {
  374.       if (this.cid > 0) timeline.clearTimeout(this.cid);
  375.     }
  376.  
  377.     isEmpty() {
  378.       return !this.cid
  379.     }
  380.  
  381.  
  382.   }
  383.  
  384.   class Mutex {
  385.  
  386.     constructor() {
  387.       this.p = Promise.resolve()
  388.     }
  389.  
  390.     lockWith(f) {
  391.  
  392.       this.p = this.p.then(() => {
  393.         return new Promise(f)
  394.       }).catch(console.warn)
  395.     }
  396.  
  397.   }
  398.  
  399.  
  400.  
  401.   function prettyElm(/** @type {Element} */ elm) {
  402.     if (!elm || !elm.nodeName) return null;
  403.     const eId = elm.id || null;
  404.     const eClsName = elm.className || null;
  405.     return [elm.nodeName.toLowerCase(), typeof eId == 'string' ? "#" + eId : '', typeof eClsName == 'string' ? '.' + eClsName.replace(/\s+/g, '.') : ''].join('').trim();
  406.   }
  407.  
  408.   function extractTextContent(/** @type {Node} */ elm) {
  409.     return elm.textContent.replace(/\s+/g, '').replace(/[^\da-zA-Z\u4E00-\u9FFF\u00C0-\u00FF\u00C0-\u02AF\u1E00-\u1EFF\u0590-\u05FF\u0400-\u052F\u0E00-\u0E7F\u0600-\u06FF\u0750-\u077F\u1100-\u11FF\u3130-\u318F\uAC00-\uD7AF\u3040-\u30FF\u31F0-\u31FF]/g, '')
  410.   }
  411.  
  412.   function addScript(/** @type {string} */ scriptText) {
  413.     const scriptNode = document.createElement('script');
  414.     scriptNode.type = 'text/javascript';
  415.     scriptNode.textContent = scriptText;
  416.     try {
  417.       document.documentElement.appendChild(scriptNode);
  418.     } catch (e) {
  419.       console.log('addScript Error', e)
  420.     }
  421.     return scriptNode;
  422.   }
  423.  
  424.   function addScriptByURL(/** @type {string} */ scriptURL) {
  425.     const scriptNode = document.createElement('script');
  426.     scriptNode.type = 'text/javascript';
  427.     scriptNode.src = scriptURL;
  428.     try {
  429.       document.documentElement.appendChild(scriptNode);
  430.     } catch (e) {
  431.       console.log('addScriptByURL Error', e)
  432.     }
  433.     return scriptNode;
  434.   }
  435.  
  436.   function addStyle(/** @type {string} */ styleText, /** @type {HTMLElement | Document} */ container) {
  437.     const styleNode = document.createElement('style');
  438.     //styleNode.type = 'text/css';
  439.     styleNode.textContent = styleText;
  440.     (container || document.documentElement).appendChild(styleNode);
  441.     return styleNode;
  442.   }
  443.  
  444.  
  445.   const stopIframePropagation = function(/** @type {Event} */ evt){
  446.     if(scriptEnable && evt && evt.target && evt.target.nodeName=='IFRAME'){
  447.       evt.stopImmediatePropagation();
  448.       evt.stopPropagation();
  449.     }
  450.   }
  451.   document.addEventListener('mouseover', stopIframePropagation, true)
  452.   document.addEventListener('mouseout', stopIframePropagation, true)
  453.   document.addEventListener('mousedown', stopIframePropagation, true)
  454.   document.addEventListener('mouseup', stopIframePropagation, true)
  455.   document.addEventListener('keydown', stopIframePropagation, true)
  456.   document.addEventListener('keyup', stopIframePropagation, true)
  457.   document.addEventListener('mouseenter', stopIframePropagation, true)
  458.   document.addEventListener('mouseleave', stopIframePropagation, true)
  459.  
  460.  
  461.  
  462.   function isDOMVisible(/** @type {HTMLElement} */ elem) {
  463.     // jQuery version : https://github.com/jquery/jquery/blob/a684e6ba836f7c553968d7d026ed7941e1a612d8/src/css/hiddenVisibleSelectors.js
  464.     return !!(elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length);
  465.   }
  466.  
  467.   function isNonEmptyString(s) {
  468.     return typeof s == 'string' && s.length > 0;
  469.   }
  470.  
  471.  
  472.   async function nativeCall(/** @type {EventTarget} */ dom, /** @type {any[]} */ detail) {
  473.     //console.log(1231)
  474.     dom.dispatchEvent(new CustomEvent("userscript-call-dom", { detail: detail }))
  475.     //console.log(1232)
  476.   }
  477.  
  478.   async function nativeFunc(/** @type {EventTarget} */ dom, /** @type {string} */ property, /** @type {any} */ args) {
  479.     dom.dispatchEvent(new CustomEvent("userscript-call-dom-func", { detail: { property, args } }))
  480.   }
  481.  
  482.   // async function nativeValue(dom, property, args) {
  483.   //   dom.dispatchEvent(new CustomEvent("userscript-call-dom-value", { detail: { property, args } }))
  484.   // }
  485.   // async function nativeFuncStacked(/** @type {string} */ selector, /** @type {string} */ property, /** @type {any} */ args){
  486.   //   document.dispatchEvent(new CustomEvent("userscript-call-dom-func-stacked", { detail: { selector, property, args } }))
  487.   // }
  488.   // async function nativeValueStacked(selector, property, args){
  489.   //   document.dispatchEvent(new CustomEvent("userscript-call-dom-value-stacked", { detail: { selector, property, args } }))
  490.   // }
  491.   // async function nativeConstStacked(selector, property, args){
  492.   //   document.dispatchEvent(new CustomEvent("userscript-call-dom-const-stacked", { detail: { selector, property, args } }))
  493.   // }
  494.  
  495.  
  496.   function akAttr(/** @type {HTMLElement} */ cssElm, /** @type {String} */ attrName, /** @type {boolean} */ isNegative, /** @type {string | any} */ flag) {
  497.     // isNegative => incomplete loading
  498.  
  499.     let u = parseInt(cssElm.getAttribute(attrName) || 0) || 0;
  500.     let ak = Math.abs(u);
  501.  
  502.     if (ak > 100 && isNegative && u < 0) {
  503.  
  504.     } else if (ak > 100 && !isNegative && u > 0) {
  505.  
  506.     } else {
  507.       if (ak <= 100) {
  508.         ak = 101;
  509.       } else {
  510.         ak++;
  511.         if (ak >= 800) ak = 101;
  512.       }
  513.       // 101, 102, ... 799, 101 
  514.     }
  515.  
  516.     cssElm.setAttribute(attrName, `${ isNegative ? -ak : ak }${ flag || '' }`)
  517.   }
  518.  
  519.  
  520.  
  521.   let timeout_resize_for_layout_change = new Timeout();
  522.  
  523.   function dispatchWindowResize(){
  524.     // for youtube to detect layout resize for adjusting Player tools
  525.     return window.dispatchEvent(new Event('resize'));
  526.   }
  527.  
  528.  
  529.  
  530.   function layoutStatusChanged(/** @type {number} */ old_layoutStatus, /** @type {number} */ new_layoutStatus) {
  531.  
  532.  
  533.     if (old_layoutStatus === new_layoutStatus) return;
  534.  
  535.     const cssElm = kRef(ytdFlexy);
  536.  
  537.     if (!cssElm) return;
  538.  
  539.  
  540.     const new_isExpandedChat = !(new_layoutStatus & LAYOUT_CHATROOM_COLLASPED) && (new_layoutStatus & LAYOUT_CHATROOM)
  541.     const new_isCollaspedChat = (new_layoutStatus & LAYOUT_CHATROOM_COLLASPED) && (new_layoutStatus & LAYOUT_CHATROOM)
  542.  
  543.     const new_isTwoColumns = !!(new_layoutStatus & LAYOUT_TWO_COLUMNS);
  544.     const new_isTheater = !!(new_layoutStatus & LAYOUT_THEATER);
  545.     const new_isTabExpanded = !!(new_layoutStatus & LAYOUT_TAB_EXPANDED);
  546.     const new_isFullScreen = !!(new_layoutStatus & LAYOUT_FULLSCREEN);
  547.     const new_isExpandEPanel = !!(new_layoutStatus & LAYOUT_ENGAGEMENT_PANEL_EXPAND);
  548.  
  549.     
  550.  
  551.  
  552.     function showTabOrChat() {
  553.  
  554.       layoutStatusMutex.lockWith(unlock => {
  555.  
  556.         if (lastShowTab == '#chatroom') {
  557.  
  558.           if (new_isTabExpanded) switchTabActivity(null)
  559.           if (!new_isExpandedChat) ytBtnExpandChat();
  560.  
  561.         } else if (lastShowTab && lastShowTab.indexOf('#engagement-panel-') == 0) {
  562.  
  563.           if (new_isTabExpanded) switchTabActivity(null)
  564.           if (!new_isExpandEPanel) ytBtnOpenEngagementPanel(lastShowTab);
  565.  
  566.         } else {
  567.  
  568.           if (new_isExpandedChat) ytBtnCollapseChat()
  569.           if (!new_isTabExpanded) {setToActiveTab();}
  570.  
  571.         }
  572.  
  573.         timeline.setTimeout(unlock, 40);
  574.  
  575.       })
  576.     }
  577.  
  578.     function hideTabAndChat() {
  579.  
  580.       layoutStatusMutex.lockWith(unlock => {
  581.  
  582.         if (new_isTabExpanded) switchTabActivity(null)
  583.         if (new_isExpandedChat) ytBtnCollapseChat()
  584.         if (new_isExpandEPanel) ytBtnCloseEngagementPanels();
  585.  
  586.  
  587.         timeline.setTimeout(unlock, 40);
  588.  
  589.       })
  590.  
  591.     }
  592.  
  593.  
  594.     if (new_isExpandedChat || new_isTabExpanded || new_isExpandEPanel) {
  595.       if (statusCollasped !== 1) statusCollasped = 1;
  596.     } else {
  597.       if (statusCollasped === 1) statusCollasped = 2;
  598.     }
  599.  
  600.     let changes = 0;
  601.  
  602.     if (old_layoutStatus !== null) changes = old_layoutStatus ^ new_layoutStatus;
  603.  
  604.     let chat_collasped_changed = !!(changes & LAYOUT_CHATROOM_COLLASPED)
  605.     let tab_expanded_changed = !!(changes & LAYOUT_TAB_EXPANDED)
  606.     let theater_mode_changed = !!(changes & LAYOUT_THEATER)
  607.     let column_mode_changed = !!(changes & LAYOUT_TWO_COLUMNS)
  608.     let fullscreen_mode_changed = !!(changes & LAYOUT_FULLSCREEN)
  609.     let epanel_expanded_changed = !!(changes & LAYOUT_ENGAGEMENT_PANEL_EXPAND)
  610.  
  611.     let tab_change = (tab_expanded_changed ? 1 : 0) | (chat_collasped_changed ? 2 : 0) | (epanel_expanded_changed ? 4 : 0);
  612.  
  613.     let isChatOrTabExpandTriggering = tab_change == 0 ? false : (
  614.       (tab_expanded_changed && new_isTabExpanded) ||
  615.       (chat_collasped_changed && new_isExpandedChat) ||
  616.       (epanel_expanded_changed && new_isExpandEPanel)
  617.     );
  618.  
  619.     let isChatOrTabCollaspeTriggering = tab_change == 0 ? false : (
  620.       (tab_expanded_changed && !new_isTabExpanded) ||
  621.       (chat_collasped_changed && new_isCollaspedChat) ||
  622.       (epanel_expanded_changed && !new_isExpandEPanel)
  623.     );
  624.  
  625.  
  626.  
  627.     let moreThanOneShown = (new_isTabExpanded + new_isExpandedChat + new_isExpandEPanel) > 1
  628.  
  629.     let requestVideoResize = false;
  630.  
  631.     if (fullscreen_mode_changed || new_isFullScreen) {
  632.  
  633.     } else if(new_isTwoColumns && !new_isTheater && !column_mode_changed && (tab_change==2 || tab_change==4) && !new_isTabExpanded && new_isExpandedChat && new_isExpandEPanel){
  634.  
  635.       if(epanel_expanded_changed){
  636.         layoutStatusMutex.lockWith(unlock => {
  637.           ytBtnCollapseChat();
  638.           setTimeout(unlock,13)
  639.         })
  640.       }else if(chat_collasped_changed){
  641.         layoutStatusMutex.lockWith(unlock => {
  642.           ytBtnCloseEngagementPanels();
  643.           setTimeout(unlock,13)
  644.         })
  645.  
  646.       }
  647.  
  648.     } else if (tab_change == 0 && column_mode_changed && new_isTwoColumns && !new_isTheater && statusCollasped === 1 && moreThanOneShown) {
  649.  
  650.       showTabOrChat();
  651.       requestVideoResize = true;
  652.  
  653.     } else if (tab_change == 2 && new_isExpandedChat && new_isTwoColumns && !new_isTheater && statusCollasped === 1 && new_isTabExpanded && !column_mode_changed) {
  654.  
  655.       switchTabActivity(null);
  656.       requestVideoResize = true;
  657.  
  658.     } else if (isChatOrTabExpandTriggering && new_isTwoColumns && new_isTheater && statusCollasped === 1 && !theater_mode_changed && !column_mode_changed) {
  659.  
  660.       ytBtnCancelTheater();
  661.       requestVideoResize = true;
  662.  
  663.     } else if (new_isTwoColumns && new_isTheater && statusCollasped === 1) {
  664.  
  665.       hideTabAndChat();
  666.       requestVideoResize = true;
  667.  
  668.     } else if (isChatOrTabCollaspeTriggering && new_isTwoColumns && !new_isTheater && statusCollasped === 2 && !column_mode_changed) {
  669.  
  670.       ytBtnSetTheater();
  671.       requestVideoResize = true;
  672.  
  673.     } else if (tab_change == 0 && (column_mode_changed || theater_mode_changed) && new_isTwoColumns && !new_isTheater && statusCollasped !== 1) {
  674.  
  675.       showTabOrChat();
  676.       requestVideoResize = true;
  677.  
  678.     } else if (!new_isFullScreen && new_isTwoColumns && !new_isTheater && !new_isTabExpanded &&
  679.       (new_isCollaspedChat || !new_isExpandedChat) &&
  680.       !new_isExpandEPanel
  681.     ) {
  682.       // bug fix for restoring from mini player
  683.  
  684.       layoutStatusMutex.lockWith(unlock => {
  685.         setToActiveTab();
  686.         timeline.setTimeout(unlock, 40);
  687.       })
  688.  
  689.       requestVideoResize = true;
  690.  
  691.     } else if (tab_expanded_changed) {
  692.  
  693.       requestVideoResize = true;
  694.  
  695.     }
  696.  
  697.  
  698.     if (column_mode_changed && !chat_collasped_changed && new_isExpandedChat) {
  699.  
  700.       runAfterExpandChat();
  701.  
  702.     }
  703.  
  704.  
  705.  
  706.     if (requestVideoResize) {
  707.  
  708.       timeout_resize_for_layout_change.clear();
  709.       timeout_resize_for_layout_change.set(() => {
  710.         dispatchWindowResize();
  711.       }, 92)
  712.  
  713.     } else if (timeout_resize_for_layout_change.isEmpty() && (Date.now()) - lastResizeAt > 600) {
  714.       timeout_resize_for_layout_change.set(() => {
  715.         if ((Date.now()) - lastResizeAt > 600) dispatchWindowResize();
  716.       }, 62)
  717.     }
  718.  
  719.  
  720.  
  721.  
  722.   }
  723.  
  724.  
  725.  
  726.   const wls = new Proxy({
  727.     /** @type {number | null} */
  728.     layoutStatus:undefined
  729.   }, {
  730.     get: function(target, prop) {
  731.       return target[prop];
  732.     },
  733.     set: function(target, prop, value) {
  734.       if(prop=='layoutStatus'){
  735.           
  736.         if (value === null) {
  737.           statusCollasped = 0;
  738.           target[prop] = value;
  739.           return;
  740.         }else if(target[prop]===value){
  741.           return;
  742.         }else{
  743.           if (!target.layoutStatus_pending) {
  744.             target.layoutStatus_pending = true;
  745.             const old_layoutStatus = target[prop];
  746.             target[prop] = value;
  747.             layoutStatusMutex.lockWith(unlock => {
  748.               target.layoutStatus_pending = false;
  749.               layoutStatusChanged(old_layoutStatus, target[prop]);
  750.               timeline.setTimeout(unlock, 40)
  751.             })
  752.             return;
  753.           }
  754.         }
  755.       }
  756.       target[prop] = value;
  757.     },
  758.     has: function(target, prop) {
  759.       return (prop in target);
  760.     }
  761.   });
  762.  
  763.  
  764.  
  765.  
  766.  
  767.  
  768.   const svgElm = (w, h, vw, vh, p) => `<svg width="${w}" height="${h}" viewBox="0 0 ${vw} ${vh}" preserveAspectRatio="xMidYMid meet">${p}</svg>`
  769.  
  770.   let settings = {
  771.     defaultTab: "#tab-videos"
  772.   };
  773.  
  774.  
  775.   let mtoInterval = mtoInterval1;
  776.  
  777.   function isVideoPlaying(video) {
  778.     return video.currentTime > 0 && !video.paused && !video.ended && video.readyState > video.HAVE_CURRENT_DATA;
  779.   }
  780.  
  781.   function wAttr(elm, attr, kv) {
  782.     if (!elm || kv === null) {} else if (kv === true) { elm.setAttribute(attr, '') } else if (kv === false) { elm.removeAttribute(attr) } else if (typeof kv == 'string') { elm.setAttribute(attr, kv) }
  783.   }
  784.  
  785.   function hideTabBtn(tabBtn) {
  786.     let isActiveBefore = tabBtn.classList.contains('active');
  787.     tabBtn.classList.add("tab-btn-hidden");
  788.     if (isActiveBefore) {
  789.       setToActiveTab();
  790.     }
  791.   }
  792.  
  793.   function hasAttribute(obj, key) {
  794.     return obj && obj.hasAttribute(key);
  795.   }
  796.  
  797.   function isTheater() {
  798.     const cssElm = kRef(ytdFlexy);
  799.     return (cssElm && cssElm.hasAttribute('theater'))
  800.   }
  801.  
  802.   function isFullScreen() {
  803.     const cssElm = kRef(ytdFlexy);
  804.     return (cssElm && cssElm.hasAttribute('fullscreen'))
  805.   }
  806.  
  807.   function isChatExpand() {
  808.     const cssElm = kRef(ytdFlexy);
  809.     return cssElm && cssElm.hasAttribute('userscript-chatblock') && !cssElm.hasAttribute('userscript-chat-collapsed')
  810.   }
  811.  
  812.   function isWideScreenWithTwoColumns() {
  813.     const cssElm = kRef(ytdFlexy);
  814.     return (cssElm && cssElm.hasAttribute('is-two-columns_'))
  815.   }
  816.  
  817.   function isAnyActiveTab() {
  818.     return $('#right-tabs .tab-btn.active').length > 0
  819.   }
  820.  
  821.   function isEngagementPanelExpanded() { //note: not checking the visual elements
  822.     const cssElm = kRef(ytdFlexy);
  823.     return (cssElm && +cssElm.getAttribute('userscript-engagement-panel') > 0)
  824.   }
  825.  
  826.   function engagement_panels_() {
  827.  
  828.     let res = [];
  829.     let shownRes = [];
  830.  
  831.     let v = 0,
  832.       k = 1,
  833.       count = 0;
  834.       
  835.     for (const ePanel of document.querySelectorAll(
  836.       `ytd-watch-flexy ytd-engagement-panel-section-list-renderer[o3r-${sa_epanel}]`
  837.       )) {
  838.  
  839.       let visibility = ePanel.getAttribute('visibility') //ENGAGEMENT_PANEL_VISIBILITY_EXPANDED //ENGAGEMENT_PANEL_VISIBILITY_HIDDEN
  840.  
  841.       switch (visibility) {
  842.         case 'ENGAGEMENT_PANEL_VISIBILITY_EXPANDED':
  843.           v |= k;
  844.           count++;
  845.           shownRes.push(ePanel)
  846.           res.push({ ePanel, k, visible: true });
  847.           break;
  848.         case 'ENGAGEMENT_PANEL_VISIBILITY_HIDDEN':
  849.           res.push({ ePanel, k, visible: false });
  850.           break;
  851.         default:
  852.           res.push({ ePanel, k, visible: false });
  853.       }
  854.  
  855.       k = k << 1;
  856.  
  857.     }
  858.     return { list: res, value: v, count: count, shownRes };
  859.   }
  860.  
  861.  
  862.   function ytBtnOpenEngagementPanel(/** @type {number | string} */ panel_id) {
  863.  
  864.     if (typeof panel_id == 'string') {
  865.       panel_id = panel_id.replace('#engagement-panel-', '');
  866.       panel_id = parseInt(panel_id);
  867.     }
  868.     if (panel_id >= 0) {} else return false;
  869.  
  870.     let panels = engagement_panels_();
  871.  
  872.     for (const { ePanel, k, visible } of panels.list) {
  873.       if ((panel_id & k) === k) {
  874.         if (!visible) ePanel.setAttribute('visibility', "ENGAGEMENT_PANEL_VISIBILITY_EXPANDED");
  875.       } else {
  876.         if (visible) ytBtnCloseEngagementPanel(ePanel);
  877.       }
  878.     }
  879.  
  880.   }
  881.  
  882.   function ytBtnCloseEngagementPanel(/** @type {HTMLElement} */  s) {
  883.     //ePanel.setAttribute('visibility',"ENGAGEMENT_PANEL_VISIBILITY_HIDDEN");
  884.     let btn = querySelectorFromAnchor.call(s,'ytd-watch-flexy ytd-engagement-panel-title-header-renderer #header > #visibility-button > ytd-button-renderer');
  885.     if (btn) {
  886.       btn.click();
  887.     }
  888.   }
  889.  
  890.   function ytBtnCloseEngagementPanels() {
  891.     if (isEngagementPanelExpanded()) {
  892.       for (const s of document.querySelectorAll(
  893.         `ytd-watch-flexy ytd-engagement-panel-section-list-renderer[o3r-${sa_epanel}]`
  894.         )) {
  895.         if (s.getAttribute('visibility') == "ENGAGEMENT_PANEL_VISIBILITY_EXPANDED") ytBtnCloseEngagementPanel(s);
  896.       }
  897.     }
  898.   }
  899.  
  900.   function ytBtnSetTheater() {
  901.     if (!isTheater()) {
  902.       const sizeBtn = document.querySelector('ytd-watch-flexy #ytd-player button.ytp-size-button')
  903.       if (sizeBtn) sizeBtn.click();
  904.     }
  905.   }
  906.  
  907.   function ytBtnCancelTheater() {
  908.     if (isTheater()) {
  909.       const sizeBtn = document.querySelector('ytd-watch-flexy #ytd-player button.ytp-size-button')
  910.       if (sizeBtn) sizeBtn.click();
  911.     }
  912.   }
  913.  
  914.   function ytBtnExpandChat() {
  915.     let button = document.querySelector('ytd-live-chat-frame#chat[collapsed] > .ytd-live-chat-frame#show-hide-button')
  916.     if (button) querySelectorFromAnchor.call(button,'ytd-toggle-button-renderer').click();
  917.   }
  918.  
  919.   function ytBtnCollapseChat() {
  920.     let button = document.querySelector('ytd-live-chat-frame#chat:not([collapsed]) > .ytd-live-chat-frame#show-hide-button')
  921.     if (button) button.querySelector('ytd-toggle-button-renderer').click();
  922.   }
  923.  
  924. /*
  925.   function hackImgShadow(imgShadow) {
  926.     // add to #columns and add back after loaded
  927.     let img = imgShadow.querySelector('img')
  928.     if (!img) return;
  929.  
  930.     let p = imgShadow.parentNode
  931.     let z = $(imgShadow).clone()[0]; //to occupy the space
  932.     p.replaceChild(z, imgShadow)
  933.     $(imgShadow).prependTo('#columns'); // refer to css hack
  934.  
  935.     function onload(evt) {
  936.       if (evt) this.removeEventListener('load', onload, false)
  937.       p.replaceChild(imgShadow, z)
  938.       p = null;
  939.       z = null;
  940.       imgShadow = null;
  941.     }
  942.  
  943.     if (img.complete) onload();
  944.     else img.addEventListener('load', onload, false)
  945.   }
  946.   */
  947.  
  948.  
  949.   const Q = {}
  950.  
  951.  
  952.  
  953.   function chatFrameContentDocument() {
  954.     // non-null if iframe exist && contentDocument && readyState = complete
  955.     /** @type {HTMLIFrameElement | null} */ 
  956.     let iframe = document.querySelector('ytd-live-chat-frame iframe#chatframe');
  957.     if (!iframe) return null; //iframe must be there
  958.     /** @type {Document | null} */ 
  959.     let cDoc = null;
  960.     try {
  961.       cDoc = iframe.contentDocument;
  962.     } catch (e) {}
  963.     if (!cDoc) return null;
  964.     if (cDoc.readyState != 'complete') return null; //we must wait for its completion
  965.  
  966.     return cDoc;
  967.  
  968.   }
  969.  
  970.   function chatFrameElement(/** @type {string} */ cssSelector) {
  971.     let cDoc = chatFrameContentDocument();
  972.     if (!cDoc) return null;
  973.     /** @type {HTMLElement | null} */ 
  974.     let elm = null;
  975.     try {
  976.       elm = cDoc.querySelector(cssSelector)
  977.     } catch (e) {
  978.       console.log('iframe error', e)
  979.     }
  980.     return elm;
  981.   }
  982.  
  983.  
  984.  
  985.  
  986.   function fixTabs() {
  987.  
  988.  
  989.     if (!scriptEnable) return;
  990.  
  991.  
  992.     let queryElement = document.querySelector('*:not(#tab-videos) > #related:not([non-placeholder-videos]) > ytd-watch-next-secondary-results-renderer')
  993.  
  994.     let isRelocated = !!queryElement;
  995.  
  996.  
  997.  
  998.     if (isRelocated) {
  999.  
  1000.       let relocatedRelated = queryElement.parentNode; // NOT NULL
  1001.  
  1002.       let right_tabs = document.querySelector('#right-tabs');
  1003.       let tab_videos = querySelectorFromAnchor.call(right_tabs,"#tab-videos");
  1004.  
  1005.       if (!right_tabs || !tab_videos) return;
  1006.  
  1007.       for (const s of querySelectorAllFromAnchor.call(relocatedRelated,'#related')) {
  1008.         s.setAttribute('non-placeholder-videos', '')
  1009.       }
  1010.  
  1011.       let target_container = document.querySelector('ytd-watch-flexy:not([is-two-columns_]) #primary-inner, ytd-watch-flexy[is-two-columns_] #secondary-inner')
  1012.  
  1013.       if (target_container) target_container.append(right_tabs) // last-child
  1014.  
  1015.  
  1016.       let videos_related = relocatedRelated; // NOT NULL
  1017.       $('[placeholder-videos]').removeAttr('placeholder-videos');
  1018.       $('[placeholder-for-youtube-play-next-queue]').removeAttr('placeholder-for-youtube-play-next-queue');
  1019.  
  1020.       tab_videos.appendChild(videos_related);
  1021.       let videos_results_renderer = relocatedRelated.querySelector("ytd-watch-next-secondary-results-renderer");
  1022.       if (videos_results_renderer) videos_results_renderer.setAttribute('data-dom-changed-by-tabview-youtube', scriptVersionForExternal);
  1023.       videos_related.setAttribute('placeholder-for-youtube-play-next-queue', '')
  1024.       videos_related.setAttribute('placeholder-videos', '')
  1025.  
  1026.       $('[placeholder-videos]').on("scroll", makeBodyScrollByEvt);
  1027.  
  1028.  
  1029.  
  1030.  
  1031.     }
  1032.  
  1033.  
  1034.  
  1035.     /** @type {HTMLElement | null} */ 
  1036.     let chatroom = null;
  1037.     if (chatroom = document.querySelector('*:not([data-positioner="before|#chat"]) + ytd-live-chat-frame#chat, ytd-live-chat-frame#chat:first-child')) {
  1038.  
  1039.       let positioner = document.querySelector('tabview-youtube-positioner[data-positioner="before|#chat"]');
  1040.       if (positioner) positioner.remove();
  1041.  
  1042.  
  1043.       if (document.querySelector('.YouTubeLiveFilledUpView')) {
  1044.         // no relocation
  1045.       } else {
  1046.  
  1047.         $(chatroom).insertBefore('#right-tabs')
  1048.  
  1049.       }
  1050.  
  1051.  
  1052.       $(positioner ? positioner : document.createElement('tabview-youtube-positioner')).attr('data-positioner', 'before|#chat').insertBefore(chatroom)
  1053.  
  1054.  
  1055.  
  1056.     }
  1057.  
  1058.  
  1059.   }
  1060.  
  1061.   function handlerAutoCompleteExist() {
  1062.  
  1063.  
  1064.     /** @type {HTMLElement} */ 
  1065.     let autoComplete = this;
  1066.  
  1067.     autoComplete.removeEventListener('autocomplete-sc-exist', handlerAutoCompleteExist, false)
  1068.  
  1069.     let domId = autoComplete.getAttribute('data-autocomplete-input-id')
  1070.     let searchBox = autoComplete.ownerDocument.querySelector(`[data-autocomplete-results-id="${domId}"]`)
  1071.  
  1072.     if (!domId || !searchBox) return;
  1073.  
  1074.     let positioner = searchBox.nextSibling;
  1075.     if (positioner && positioner.nodeName.toLowerCase() == "autocomplete-positioner") {} else if (positioner && positioner.nodeName.toLowerCase() != "autocomplete-positioner") {
  1076.       $(positioner = document.createElement("autocomplete-positioner")).insertAfter(searchBox);
  1077.     } else {
  1078.       $(positioner = document.createElement("autocomplete-positioner")).prependTo(searchBox.parentNode);
  1079.     }
  1080.     $(autoComplete).prependTo(positioner);
  1081.  
  1082.     positioner.style.setProperty('--sb-margin-bottom', getComputedStyle(searchBox).marginBottom)
  1083.     positioner.style.setProperty('--height', searchBox.offsetHeight + 'px')
  1084.  
  1085.   }
  1086.  
  1087.   function mtf_fixAutoCompletePosition(/** @type {HTMLElement} */ elmAutoComplete) {
  1088.  
  1089.  
  1090.     elmAutoComplete.setAttribute('autocomplete-disable-updatesc', '')
  1091.     elmAutoComplete.addEventListener('autocomplete-sc-exist', handlerAutoCompleteExist, false)
  1092.  
  1093.     script_inject_facp.inject();
  1094.  
  1095.   }
  1096.  
  1097.   function mtf_AfterFixTabs() {
  1098.  
  1099.  
  1100.     /** @type {HTMLElement | null} */ 
  1101.     let ytdFlexyElm = kRef(ytdFlexy);
  1102.     if (!scriptEnable || !ytdFlexyElm) return;
  1103.  
  1104.     /** @type {HTMLElement | null} */
  1105.     const rootElement = Q.mutationTarget || ytdFlexyElm;
  1106.  
  1107.  
  1108.  
  1109.     const autocomplete = querySelectorFromAnchor.call(rootElement,'[placeholder-for-youtube-play-next-queue] input#suggestions-search + autocomplete-positioner > .autocomplete-suggestions[data-autocomplete-input-id]:not([position-fixed-by-tabview-youtube])')
  1110.  
  1111.     if (autocomplete) {
  1112.  
  1113.       const searchBox = document.querySelector('[placeholder-for-youtube-play-next-queue] input#suggestions-search')
  1114.  
  1115.  
  1116.       if (searchBox) {
  1117.  
  1118.  
  1119.         autocomplete.parentNode.setAttribute('position-fixed-by-tabview-youtube', '');
  1120.         autocomplete.setAttribute('position-fixed-by-tabview-youtube', '');
  1121.         autocomplete.setAttribute('userscript-scrollbar-render', '')
  1122.  
  1123.         if (!searchBox.hasAttribute('is-set-click-to-toggle')) {
  1124.           searchBox.setAttribute('is-set-click-to-toggle', '')
  1125.           searchBox.addEventListener('click', function() {
  1126.  
  1127.  
  1128.             setTimeout(() => {
  1129.               const autocomplete = document.querySelector(`.autocomplete-suggestions[data-autocomplete-input-id="${ this.getAttribute('data-autocomplete-results-id') }"]`)
  1130.  
  1131.               if (!autocomplete) return;
  1132.  
  1133.               const isNotEmpty = (autocomplete.textContent || '').length > 0 && (this.value || '').length > 0;
  1134.  
  1135.               if (isNotEmpty) {
  1136.  
  1137.                 let elmVisible = isDOMVisible(autocomplete)
  1138.  
  1139.                 if (elmVisible) $(autocomplete).hide();
  1140.                 else $(autocomplete).show();
  1141.  
  1142.               }
  1143.  
  1144.             }, 20);
  1145.  
  1146.           })
  1147.  
  1148.           let timeoutOnce_searchbox_keyup = new Timeout();
  1149.           searchBox.addEventListener('keyup', function() {
  1150.  
  1151.             timeoutOnce_searchbox_keyup.set(() => {
  1152.  
  1153.               const autocomplete = document.querySelector(`.autocomplete-suggestions[data-autocomplete-input-id="${ this.getAttribute('data-autocomplete-results-id') }"]`)
  1154.  
  1155.               if (!autocomplete) return;
  1156.  
  1157.  
  1158.               const isNotEmpty = (autocomplete.textContent || '').length > 0 && (this.value || '').length > 0
  1159.  
  1160.               if (isNotEmpty) {
  1161.  
  1162.                 let elmVisible = isDOMVisible(autocomplete)
  1163.  
  1164.                 if (!elmVisible) $(autocomplete).show();
  1165.  
  1166.               }
  1167.  
  1168.             }, 20);
  1169.  
  1170.           })
  1171.  
  1172.         }
  1173.  
  1174.  
  1175.  
  1176.       }
  1177.  
  1178.     }
  1179.  
  1180.  
  1181.  
  1182.  
  1183.     let currentLastVideo = querySelectorFromAnchor.call(rootElement,'[placeholder-videos] #items ytd-compact-video-renderer:last-of-type')
  1184.     let prevLastVideo = kRef(_cachedLastVideo);
  1185.  
  1186.     if (prevLastVideo !== currentLastVideo && currentLastVideo) {
  1187.       _cachedLastVideo = mWeakRef(currentLastVideo);
  1188.     }
  1189.  
  1190.     if (prevLastVideo !== currentLastVideo && currentLastVideo && prevLastVideo) {
  1191.  
  1192.       let isPrevRemoved = !prevLastVideo.parentNode
  1193.  
  1194.  
  1195.       function getVideoListHash() {
  1196.  
  1197.         let res = [...document.querySelectorAll('[placeholder-videos] #items ytd-compact-video-renderer')].map(renderer => {
  1198.           return renderer.querySelector('a[href*="watch"][href*="v="]').getAttribute('href')
  1199.  
  1200.         }).join('|')
  1201.         // /watch?v=XXXXX|/watch?v=XXXXXX|/watch?v=XXXXXX
  1202.  
  1203.         // alternative - DOM.data.videoId
  1204.         // let elms = document.querySelectorAll('[placeholder-videos] #items ytd-compact-video-renderer')
  1205.         // let res = [...elms].map(elm=>elm.data.videoId||'').join('|') ;
  1206.  
  1207.         if (res.indexOf('||') >= 0) {
  1208.           res = '';
  1209.         }
  1210.  
  1211.         return res ? res : null;
  1212.       }
  1213.  
  1214.       if (isPrevRemoved) {
  1215.  
  1216.         // this is the replacement of videos instead of addition
  1217.  
  1218.         const searchBox = document.querySelector('[placeholder-for-youtube-play-next-queue] input#suggestions-search')
  1219.  
  1220.         let currentPlayListHash = getVideoListHash() || null;
  1221.  
  1222.         if (!currentPlayListHash) {
  1223.  
  1224.         } else if (!videoListBeforeSearch && searchBox) {
  1225.  
  1226.           videoListBeforeSearch = currentPlayListHash;
  1227.           if (videoListBeforeSearch) {
  1228.             //console.log('fromSearch', videoListBeforeSearch)
  1229.  
  1230.             requestAnimationFrame(function() {
  1231.  
  1232.               let renderer = document.querySelector('[placeholder-videos] ytd-watch-next-secondary-results-renderer');
  1233.               if (searchBox && searchBox.parentNode) searchBox.blur();
  1234.  
  1235.               if (renderer) {
  1236.                 let scrollParent = renderer.parentNode;
  1237.                 if (scrollParent.scrollHeight > scrollParent.offsetHeight) {
  1238.                   let targetTop = renderer.offsetTop;
  1239.                   if (searchBox && searchBox.parentNode == scrollParent) targetTop -= searchBox.offsetHeight
  1240.                   scrollParent.scrollTop = targetTop - scrollParent.firstChild.offsetTop;
  1241.                 }
  1242.               }
  1243.  
  1244.             });
  1245.  
  1246.           }
  1247.  
  1248.         } else if (videoListBeforeSearch) {
  1249.  
  1250.           if (currentPlayListHash != videoListBeforeSearch) {
  1251.  
  1252.             videoListBeforeSearch = null;
  1253.             //console.log('fromSearch', videoListBeforeSearch)
  1254.  
  1255.  
  1256.           }
  1257.  
  1258.         }
  1259.  
  1260.  
  1261.       }
  1262.  
  1263.  
  1264.     }
  1265.  
  1266.  
  1267.  
  1268.  
  1269.   }
  1270.  
  1271.   function base_ChatExist() {
  1272.  
  1273.     let ytdFlexyElm = kRef(ytdFlexy);
  1274.     if (!scriptEnable || !ytdFlexyElm) return null;
  1275.  
  1276.     // no mutation triggering if the changes are inside the iframe 
  1277.  
  1278.     // 1) Detection of #continuations inside iframe
  1279.     // iframe ownerDocument is accessible due to same origin
  1280.     // if the chatroom is collasped, no determination of live chat or replay (as no #continuations and somehow a blank iframe doc)
  1281.  
  1282.     // 2) Detection of meta tag
  1283.     // This is fastest but not reliable. It is somehow a bug that the navigation might not update the meta tag content
  1284.  
  1285.     // 3) Detection of HTMLElement inside video player for live video
  1286.  
  1287.     // (1)+(3) = solution
  1288.  
  1289.     let attr_chatblock = null
  1290.     let attr_chatcollapsed = null;
  1291.  
  1292.     const elmChat = document.querySelector('ytd-live-chat-frame#chat')
  1293.     let elmCont = null;
  1294.     if (elmChat) {
  1295.       elmCont = chatFrameElement('yt-live-chat-renderer #continuations')
  1296.  
  1297.  
  1298.       let s = 0;
  1299.       if (elmCont) {
  1300.         //not found if it is collasped.
  1301.         s |= querySelectorFromAnchor.call(elmCont,'yt-timed-continuation') ? 1 : 0;
  1302.         s |= querySelectorFromAnchor.call(elmCont,'yt-live-chat-replay-continuation, yt-player-seek-continuation') ? 2 : 0;
  1303.         //s |= elmCont.querySelector('yt-live-chat-restricted-participation-renderer')?4:0;
  1304.         if (s == 1) {
  1305.           attr_chatblock = 'chat-live';
  1306.         }else if (s == 2) attr_chatblock = 'chat-playback';
  1307.  
  1308.         if (s == 1) $("span#tab3-txt-loader").text('');
  1309.  
  1310.       } else if (!ytdFlexyElm.hasAttribute('userscript-chatblock')) {
  1311.         // live chat frame but type not known
  1312.           
  1313.         attr_chatblock = '';
  1314.  
  1315.       }
  1316.       //keep unknown as original    
  1317.       
  1318.       
  1319.       let isCollapsed = !!elmChat.hasAttribute('collapsed');
  1320.       attr_chatcollapsed = isCollapsed;
  1321.  
  1322.     } else {
  1323.       attr_chatblock = false;
  1324.       attr_chatcollapsed = false;
  1325.  
  1326.     }
  1327.  
  1328.     return { attr_chatblock, attr_chatcollapsed }
  1329.  
  1330.   }
  1331.  
  1332.  
  1333.   function mtf_ChatExist() {
  1334.  
  1335.     let ytdFlexyElm = kRef(ytdFlexy);
  1336.     if (!scriptEnable || !ytdFlexyElm) return;
  1337.  
  1338.     if (deferredVarYTDHidden) return;
  1339.  
  1340.     const elmChat = document.querySelector('ytd-live-chat-frame#chat')
  1341.     let elmCont = null;
  1342.     if (elmChat) {
  1343.       elmCont = chatFrameElement('yt-live-chat-renderer #continuations')
  1344.     }
  1345.  
  1346.     const chatBlockR = (elmChat ? 1 : 0) + (elmCont ? 2 : 0)
  1347.     if (Q.mtf_chatBlockQ !== chatBlockR) {
  1348.       Q.mtf_chatBlockQ = chatBlockR
  1349.       let rChatExist = base_ChatExist();
  1350.       //console.log(2446, rChatExist)
  1351.       if (rChatExist) {
  1352.         let { attr_chatblock, attr_chatcollapsed } = rChatExist;
  1353.         wAttr(ytdFlexyElm, 'userscript-chatblock', attr_chatblock)
  1354.         wAttr(ytdFlexyElm, 'userscript-chat-collapsed', attr_chatcollapsed)
  1355.         
  1356.         if(attr_chatblock=='chat-live') _disableComments();
  1357.       }
  1358.     }
  1359.  
  1360.   }
  1361.  
  1362.  
  1363.  
  1364.  
  1365.   let lastScrollAt1 = 0;
  1366.  
  1367.   function makeBodyScrollByEvt() {
  1368.     let ct = Date.now();
  1369.     if (ct - lastScrollAt1 < 6) return; // avoid duplicate calling
  1370.     lastScrollAt1 = ct;
  1371.     window.dispatchEvent(new Event("scroll")); // dispatch Scroll Event to Window for content display
  1372.   }
  1373.  
  1374.   let lastScrollAt2 = 0;
  1375.  
  1376.   function makeBodyScroll() {
  1377.     let ct = Date.now();
  1378.     if (ct - lastScrollAt2 < 30) return; // avoid over triggering
  1379.     lastScrollAt2 = ct;
  1380.     requestAnimationFrame(() => {
  1381.       window.dispatchEvent(new Event("scroll")); // ask youtube to display content
  1382.     })
  1383.   }
  1384.  
  1385.   //let requestingComments = null
  1386.   //let scrollForComments_lastStart = 0;
  1387.    /*
  1388.   function scrollForComments_TF() {
  1389.  
  1390.     let comments = requestingComments;
  1391.     if (!comments) return;
  1392.     if (comments.hasAttribute('hidden')) {
  1393.       window.dispatchEvent(new Event("scroll"));
  1394.     } else requestingComments = null;
  1395.  
  1396.   }
  1397.   function scrollForComments() {
  1398.     scrollForComments_TF();
  1399.     if (!requestingComments) return;
  1400.     requestAnimationFrame(scrollForComments_TF);
  1401.     let ct = Date.now();
  1402.     if (ct - scrollForComments_lastStart < 60) return;
  1403.     scrollForComments_lastStart = ct;
  1404.     timeline.setTimeout(scrollForComments_TF, 80);
  1405.     timeline.setTimeout(scrollForComments_TF, 240);
  1406.     timeline.setTimeout(scrollForComments_TF, 870);
  1407.   
  1408.   }
  1409.   */
  1410.  
  1411.  
  1412.  
  1413.   const mtoCs = { mtoNav: null, mtoBody: null };
  1414.  
  1415.  
  1416.   const mtoVs = {}
  1417.  
  1418.   const mutation_target_id_list = ['ytp-caption-window-container', 'items', 'button', 'movie_player', 'player-ads', 'hover-overlays', 'replies'];
  1419.   const mutation_target_class_list = ['ytp-panel-menu', 'ytp-endscreen-content'];
  1420.  
  1421.   function isMtoOverallSkip(dTarget) {
  1422.  
  1423.     if (!dTarget || dTarget.nodeType !== 1) return true;
  1424.  
  1425.     if (mutation_target_id_list.includes(dTarget.id)) return true;
  1426.  
  1427.     for (const c of dTarget.classList) {
  1428.       if (mutation_target_class_list.includes(c)) return true;
  1429.     }
  1430.  
  1431.     return false;
  1432.   }
  1433.  
  1434.  
  1435.   const mutation_div_id_ignorelist = [
  1436.         'metadata-line',
  1437.         'ytp-caption-window-container',
  1438.         'top-level-buttons-computed',
  1439.         'microformat',
  1440.         'visibility-button',
  1441.         'info-strings',
  1442.         'action-menu',
  1443.         'reply-button-end'
  1444.     ];
  1445.  
  1446.   const mutation_div_class_ignorelist = [
  1447.         'badge', 'tp-yt-paper-tooltip', 'ytp-autonav-endscreen-upnext-header',
  1448.         'ytp-bound-time-left', 'ytp-bound-time-right', 'ytp-share-icon',
  1449.         'ytp-tooltip-title', 'annotation', 'ytp-copylink-icon', 'ytd-thumbnail',
  1450.         'paper-ripple',
  1451.         //caption
  1452.         'captions-text', 'caption-visual-line', 'ytp-caption-segment', 'ytp-caption-window-container',
  1453.         //menu
  1454.         'ytp-playlist-menu-button-text',
  1455.  
  1456.         'ytp-bezel-icon', 'ytp-bezel-text',
  1457.         'dropdown-content',
  1458.         'tp-yt-paper-menu-button', 'tp-yt-iron-dropdown',
  1459.  
  1460.         'ytd-metadata-row-renderer', // #content.ytd-metadata-row-renderer inside each of ytd-metadata-row-renderer (ytd-expander)
  1461.         'ytd-engagement-panel-section-list-renderer', // {div#content.style-scope.ytd-engagement-panel-section-list-renderer} inside each of ytd-engagement-panel-section-list-renderer
  1462.  
  1463.         'autocomplete-suggestions' // autocomplete-suggestions
  1464.     ];
  1465.  
  1466.   const mutation_target_tag_ignorelist = [
  1467.         'ytd-channel-name', 'tp-yt-iron-dropdown', 'tp-yt-paper-tooltip',
  1468.         'tp-yt-paper-listbox', 'yt-img-shadow', 'ytd-thumbnail', 'ytd-video-meta-block',
  1469.  
  1470.         'yt-icon-button', 'tp-yt-paper-button', 'yt-formatted-string', 'yt-icon', 'button', 'paper-ripple',
  1471.  
  1472.         'ytd-player-microformat-renderer',
  1473.         'ytd-engagement-panel-section-list-renderer', 'ytd-engagement-panel-title-header-renderer',
  1474.         'ytd-comment-renderer', 'ytd-menu-renderer', 'ytd-badge-supported-renderer',
  1475.         'ytd-subscribe-button-renderer', 'ytd-subscription-notification-toggle-button-renderer',
  1476.         'ytd-button-renderer', 'ytd-toggle-button-renderer',
  1477.         'yt-pdg-comment-chip-renderer', 'ytd-comment-action-buttons-renderer', 'ytd-comment-thread-renderer',
  1478.         'ytd-compact-radio-renderer', 'ytd-compact-video-renderer',
  1479.         'ytd-video-owner-renderer',
  1480.         'ytd-metadata-row-renderer', //ytd-metadata-row-renderer is part of the #collapsible inside ytd-expander
  1481.  
  1482.         'ytd-moving-thumbnail-renderer',
  1483.         'ytd-thumbnail-overlay-toggle-button-renderer',
  1484.         'ytd-thumbnail-overlay-bottom-panel-renderer', 'ytd-thumbnail-overlay-equalizer',
  1485.         'ytd-thumbnail-overlay-now-playing-renderer', 'ytd-thumbnail-overlay-resume-playback-renderer',
  1486.         'ytd-thumbnail-overlay-side-panel-renderer', 'ytd-thumbnail-overlay-time-status-renderer',
  1487.         'ytd-thumbnail-overlay-hover-text-renderer',
  1488.  
  1489.         'yt-interaction',
  1490.         'tp-yt-paper-spinner-lite', 'tp-yt-paper-spinner',
  1491.  
  1492.         'h1', 'h2', 'h3', 'h4', 'h5', 'span', 'a',
  1493.  
  1494.         'meta', 'br', 'script', 'style', 'link', 'dom-module', 'template'
  1495.     ];
  1496.  
  1497.   function isMtoTargetSkip(mutation) {
  1498.     //skip not important mutation tartget
  1499.  
  1500.     if (!mutation) return true;
  1501.     let { type, target } = mutation
  1502.  
  1503.     if (!target || target.nodeType !== 1 || type != 'childList') return true;
  1504.  
  1505.     let tagName = target.nodeName.toLowerCase();
  1506.  
  1507.     if (mutation_target_tag_ignorelist.includes(tagName)) return true;
  1508.  
  1509.     switch (tagName) {
  1510.  
  1511.  
  1512.       case 'ytd-expander':
  1513.         if (target.id == 'expander' && Q.comments_section_loaded == 1 && target.classList.contains('ytd-comment-renderer')) return true; // load comments
  1514.         return false;
  1515.  
  1516.       case 'div':
  1517.  
  1518.         if (target.id == 'contents') {
  1519.           return false;
  1520.         }
  1521.         if (mutation_div_id_ignorelist.includes(target.id)) return true;
  1522.  
  1523.         for (const c of target.classList) {
  1524.           if (mutation_div_class_ignorelist.includes(c)) return true;
  1525.         }
  1526.  
  1527.         return false;
  1528.  
  1529.     }
  1530.  
  1531.     return false;
  1532.  
  1533.   }
  1534.  
  1535.  
  1536.   function mtf_forceCheckLiveVideo() {
  1537.     // once per $$player-playback-timestamp$$ {#ytd-player .ytp-time-display} &&  $$chat-frame$$ {ytd-live-chat-frame#chat} detection
  1538.     // reset after popstatechange / videochange
  1539.  
  1540.     if(mtf_forceCheckLiveVideo_disable) return ;
  1541.  
  1542.     let ytdFlexyElm = kRef(ytdFlexy);
  1543.     if (!scriptEnable || !ytdFlexyElm) return ;
  1544.  
  1545.     const playerLabel = document.querySelector('ytd-watch-flexy:not([hidden]) #ytd-player .ytp-time-display') && document.querySelector('ytd-watch-flexy:not([hidden]) ytd-live-chat-frame#chat')
  1546.     if (!playerLabel) return ;
  1547.     mtf_forceCheckLiveVideo_disable = 1;
  1548.     timeline.setTimeout(FP.fireOnce_forceCheckLiveVideo_tf, 170)
  1549.     return ;
  1550.   }
  1551.  
  1552.   // continuous check for element relocation
  1553.   function mtf_append_comments() {
  1554.     
  1555.     /** @type {HTMLElement | null} */
  1556.     let ytdFlexyElm = kRef(ytdFlexy);
  1557.     if (!scriptEnable || !ytdFlexyElm) return;
  1558.  
  1559.     /** @type {HTMLElement | null} */
  1560.     const rootElement = Q.mutationTarget || ytdFlexyElm;
  1561.  
  1562.     let comments = querySelectorFromAnchor.call(rootElement,'#primary ytd-watch-metadata ~ ytd-comments#comments');
  1563.     if (comments) $(comments).appendTo('#tab-comments').attr('data-dom-changed-by-tabview-youtube', scriptVersionForExternal)
  1564.   }
  1565.  
  1566.   // continuous check for element relocation
  1567.   function mtf_liveChatBtnF() {
  1568.     
  1569.     /** @type {HTMLElement | null} */
  1570.     let ytdFlexyElm = kRef(ytdFlexy);
  1571.     if (!scriptEnable || !ytdFlexyElm) return;
  1572.  
  1573.     /** @type {HTMLElement | null} */
  1574.     const rootElement = Q.mutationTarget || ytdFlexyElm;
  1575.  
  1576.     let button = querySelectorFromAnchor.call(rootElement,'ytd-live-chat-frame#chat > .ytd-live-chat-frame#show-hide-button:nth-child(n+2)');
  1577.     if (button) button.parentNode.insertBefore(button, button.parentNode.firstChild)
  1578.   }
  1579.  
  1580.  
  1581.  
  1582.   // continuous check for element relocation
  1583.   // fired at begining & window resize, etc
  1584.   function mtf_append_playlist() {
  1585.  
  1586.     /** @type {HTMLElement | null} */
  1587.     let ytdFlexyElm = kRef(ytdFlexy);
  1588.     if (!scriptEnable || !ytdFlexyElm) return;
  1589.  
  1590.     /** @type {HTMLElement | null} */
  1591.     const rootElement = Q.mutationTarget || ytdFlexyElm;
  1592.  
  1593.     let ple1 = querySelectorFromAnchor.call(rootElement,"*:not(#ytd-userscript-playlist) > ytd-playlist-panel-renderer#playlist");
  1594.     if (ple1) {
  1595.       let ct = Date.now();
  1596.       let truePlaylist = null;
  1597.       let truePlaylist_items = document.querySelector('ytd-playlist-panel-renderer#playlist #items:not(:empty)');
  1598.       if (truePlaylist_items) {
  1599.  
  1600.         let pElm = truePlaylist_items.parentNode;
  1601.         while (pElm && pElm.nodeType === 1) {
  1602.           if (pElm.id == 'playlist') {
  1603.             pElm.setAttribute('tabview-true-playlist', ct)
  1604.             truePlaylist = pElm;
  1605.             break;
  1606.           }
  1607.           pElm = pElm.parentNode;
  1608.         }
  1609.  
  1610.       }
  1611.  
  1612.       if (!truePlaylist) truePlaylist = ple1; // NOT NULL
  1613.  
  1614.       for (const s of document.querySelectorAll(`*:not(#ytd-userscript-playlist) > ytd-playlist-panel-renderer#playlist:not([tabview-true-playlist="${ct}"])`))
  1615.         s.parentNode.removeChild(s);
  1616.  
  1617.       let $wrapper = getWrapper('ytd-userscript-playlist')
  1618.       $wrapper.append(truePlaylist).appendTo(document.querySelector("#tab-list"));
  1619.       truePlaylist.setAttribute('data-dom-changed-by-tabview-youtube', scriptVersionForExternal)
  1620.       setDisplayedPlaylist(); // relocation after re-layout
  1621.  
  1622.       requestAnimationFrame(() => {
  1623.         let ytdFlexyElm = kRef(ytdFlexy);
  1624.         if (!scriptEnable || !ytdFlexyElm) return;
  1625.         if (!switchTabActivity_lastTab && (ytdFlexyElm.getAttribute('tabview-selection') + '').indexOf('#tab-') === 0 && /https\:\/\/www\.youtube\.com\/watch.*[\?\&]list=[\w\-\_]+/.test(location.href)) {
  1626.           if (setToActiveTab('#tab-list')) switchTabActivity_lastTab = '#tab-list';
  1627.         }
  1628.       })
  1629.  
  1630.     }
  1631.   }
  1632.  
  1633.  
  1634.   // content fix - info & playlist
  1635.   // fired at begining, and keep for in case any change
  1636.   function mtf_fix_details() {
  1637.  
  1638.     if (!scriptEnable) return;
  1639.  
  1640.     let date_now = Date.now()
  1641.  
  1642.     if(no_fix_contents_until<date_now){
  1643.  
  1644.       let contentToggleBtn = document.querySelector('ytd-watch-flexy #tab-info ytd-expander tp-yt-paper-button#less.ytd-expander:not([hidden]), #tab-info ytd-expander tp-yt-paper-button#more.ytd-expander:not([hidden])')
  1645.  
  1646.       if(contentToggleBtn){
  1647.   
  1648.         no_fix_contents_until = date_now + 39;
  1649.         timeline.setTimeout(function() {
  1650.           const domElement = contentToggleBtn;
  1651.           contentToggleBtn = null;
  1652.           // if(!domElement.parentElement) return; // not working in pseudo custom element - parentNode = documentFragment
  1653.           const expander = closestDOM.call(domElement, 'ytd-watch-flexy #tab-info ytd-expander')
  1654.   
  1655.           if(!expander || expander.nodeType!==1) return; // checking whether it is still on the page
  1656.           if(expander.style.getPropertyValue('--ytd-expander-collapsed-height')){
  1657.             expander.style.setProperty('--ytd-expander-collapsed-height','')
  1658.           }
  1659.           nativeCall(expander, [
  1660.             {'property':'canToggleJobId','value':1}, // false disable calculateCanCollapse in childrenChanged
  1661.             {'property':'alwaysToggleable','value':false}, // this is checked in childrenChanged
  1662.             {'property':'recomputeOnResize','value':false}, // no need to check toggleable
  1663.             {'property':'isToggled','value':true}, // show full content
  1664.             {'property':'canToggle','value':false}, // hide show more or less btn
  1665.             {'property':'collapsedHeight','value':999999} // disable collapsed height check
  1666.           ])
  1667.   
  1668.         }, 40);
  1669.       }
  1670.  
  1671.     }
  1672.  
  1673.  
  1674.     if(no_fix_playlist_until<date_now){
  1675.  
  1676.  
  1677.       // just in case the playlist is collapsed
  1678.       let playlist = document.querySelector('#tab-list ytd-playlist-panel-renderer#playlist')
  1679.       if(playlist.matches('[collapsed], [collapsible]')) {
  1680.         no_fix_playlist_until=  date_now + 39;
  1681.         timeline.setTimeout(function() {
  1682.           const domElement = playlist;
  1683.           playlist = null;
  1684.           // if(!domElement.parentElement || domElement.nodeType!==1) return; // not working in pseudo custom element - parentNode = documentFragment
  1685.           const tablist = closestDOM.call(domElement, 'ytd-watch-flexy #tab-list')
  1686.   
  1687.           if(!tablist || tablist.nodeType!==1) return; // checking whether it is still on the page
  1688.  
  1689.           if (domElement.hasAttribute('collapsed')) wAttr(domElement, 'collapsed', false);
  1690.           if (domElement.hasAttribute('collapsible')) wAttr(domElement, 'collapsible', false);
  1691.         }, 40)
  1692.       }
  1693.  
  1694.  
  1695.     }
  1696.  
  1697.  
  1698.   }
  1699.  
  1700.  
  1701.  
  1702.   function isNullComments() {
  1703.  
  1704.     let comments = document.querySelector('ytd-comments#comments')
  1705.     if (!comments || comments.hasAttribute('hidden')) return true;
  1706.  
  1707.   }
  1708.  
  1709.   function _innerCommentsLoader( /** @type {HTMLElement} */ rootElement) {
  1710.  
  1711.     /** @type {HTMLElement | null} */
  1712.     let ytdFlexyElm = kRef(ytdFlexy);
  1713.     if (!scriptEnable || !ytdFlexyElm) return;
  1714.     
  1715.     if (deferredVarYTDHidden) return;
  1716.  
  1717.  
  1718.     let messageElm, messageStr, commentRenderer;
  1719.     let diffCSS = `[tabview-cache-time="${sect_hTime}"]`
  1720.  
  1721.     if (commentRenderer = querySelectorFromAnchor.call(rootElement,`ytd-comments#comments #count.ytd-comments-header-renderer:not(${diffCSS})`)) {
  1722.  
  1723.       scheduledCommentRefresh=false;
  1724.       let eTime = Date.now();
  1725.  
  1726.       sect_holder = mWeakRef(commentRenderer);
  1727.       sect_hText = commentRenderer.textContent;
  1728.       sect_hTime = eTime;
  1729.       commentRenderer.setAttribute('tabview-cache-time', eTime);
  1730.  
  1731.       return {
  1732.         status: 1,
  1733.         f: () => {
  1734.  
  1735.           let span = document.querySelector("span#tab3-txt-loader")
  1736.           let r = '0';
  1737.           let txt = commentRenderer.textContent
  1738.           if (typeof txt == 'string') {
  1739.             let m = txt.match(/[\d\,\s]+/)
  1740.             if (m) {
  1741.               r = m[0].trim()
  1742.  
  1743.  
  1744.             }
  1745.           }
  1746.           
  1747.           if (span){
  1748.  
  1749.             let tab_btn = closestDOM.call(span,'.tab-btn[userscript-tab-content="#tab-comments"]')
  1750.             if(tab_btn)tab_btn.setAttribute('loaded-comment','normal')
  1751.             span.textContent = r;
  1752.           } 
  1753.           //console.log(754)
  1754.           mtoInterval = mtoInterval2;
  1755.           scheduledCommentRefresh=false;
  1756.           setCommentSection(1);
  1757.           comments_section_loaded_elm = mWeakRef(document.querySelector('ytd-comments#comments div#contents'))
  1758.         }
  1759.       }
  1760.  
  1761.     } else if ((messageElm = querySelectorFromAnchor.call(rootElement,`ytd-item-section-renderer#sections #header ~ #contents > ytd-message-renderer:not(${diffCSS})`)) && (messageStr = (messageElm.textContent || '').trim())) { //ytd-message-renderer
  1762.       // it is possible to get the message before the header generation.
  1763.       // sample link - https://www.youtube.com/watch?v=PVUZ8Nvr1ic
  1764.       // sample link - https://www.youtube.com/watch?v=yz8AiQc1Bk8
  1765.  
  1766.       scheduledCommentRefresh=false;
  1767.       let eTime = Date.now();
  1768.  
  1769.       sect_holder = mWeakRef(messageElm);
  1770.       sect_hText = messageElm.textContent;
  1771.       sect_hTime = eTime;
  1772.       messageElm.setAttribute('tabview-cache-time', eTime);
  1773.  
  1774.       return {
  1775.         status: 2,
  1776.         f: () => {
  1777.           timeline.setTimeout(function() {
  1778.             let span = document.querySelector("span#tab3-txt-loader")
  1779.             const mainMsg = querySelectorFromAnchor.call(messageElm,'#message, #submessage')
  1780.             if (mainMsg && mainMsg.textContent) {
  1781.               for (const msg of querySelectorAllFromAnchor.call(mainMsg,'*:not(:empty)')) {
  1782.                 if (msg.childElementCount === 0 && msg.textContent) {
  1783.                   messageStr = msg.textContent.trim()
  1784.                   break
  1785.                 }
  1786.               }
  1787.             }
  1788.             if (span){
  1789.               let tab_btn = closestDOM.call(span,'.tab-btn[userscript-tab-content="#tab-comments"]')
  1790.               if(tab_btn)tab_btn.setAttribute('loaded-comment','message')
  1791.               span.textContent ='\u200B';
  1792.             } 
  1793.             mtoInterval = mtoInterval2;
  1794.             scheduledCommentRefresh=false;
  1795.             setCommentSection(1);
  1796.             comments_section_loaded_elm = mWeakRef(document.querySelector('ytd-comments#comments div#contents'))
  1797.           }, 40);
  1798.         }
  1799.       }
  1800.  
  1801.     }
  1802.  
  1803.   }
  1804.  
  1805.   const atChange = async ()=>{
  1806.  
  1807.     // call when video change / popstate change / switch back from mini-view
  1808.  
  1809.     let ytdFlexyElm = kRef(ytdFlexy);
  1810.     if(!ytdFlexyElm) return;
  1811.  
  1812.     mtf_forceCheckLiveVideo_disable = 0; 
  1813.     mtf_forceCheckLiveVideo();
  1814.  
  1815.     if(Q.comments_section_loaded===0){
  1816.  
  1817.       const tabBtn = document.querySelector('[userscript-tab-content="#tab-comments"].tab-btn-hidden')
  1818.       if(tabBtn) {
  1819.         tabBtn.classList.remove("tab-btn-hidden") //if contains
  1820.       }
  1821.  
  1822.     }
  1823.   }
  1824.  
  1825.  
  1826.  
  1827.   function hookSection(){
  1828.  
  1829.  
  1830.     //console.log(3300)
  1831.  
  1832.     let ytdFlexyElm = kRef(ytdFlexy);
  1833.     if (!scriptEnable || !ytdFlexyElm) return ;
  1834.  
  1835.     const comments = querySelectorFromAnchor.call(ytdFlexyElm,'ytd-comments#comments')
  1836.     if (!comments) return ;
  1837.  
  1838.     if(deferredVarYTDHidden) return;
  1839.  
  1840.     //console.log(3310)
  1841.  
  1842.     //new MutationObserver(function(){console.log(comments.querySelectorAll('*').length)}).observe(comments,{ attributes: true, childList: true, subtree: true })
  1843.     
  1844.  
  1845.     function foundSection(sections){
  1846.  
  1847.       
  1848.       //console.log(3320)
  1849.  
  1850.       function ulfx() {
  1851.         //console.log(1220)
  1852.  
  1853.  
  1854.         const rootElement = comments.parentNode
  1855.  
  1856.  
  1857.         if (pendingOne && querySelectorAllFromAnchor.call(comments,'[tabview-cache-time]').length > 1) return;
  1858.         pendingOne = false;
  1859.         if(!rootElement) return; //prevent unknown condition
  1860.         
  1861.  
  1862.  
  1863.         let innerCommentsLoaderRet = _innerCommentsLoader(rootElement);
  1864.  
  1865.         //console.log(1222,_innerCommentsLoader)
  1866.  
  1867.         if (!innerCommentsLoaderRet) {
  1868.  
  1869.  
  1870.           let holder = kRef(sect_holder);
  1871.           if (holder && comments.contains(holder)) {
  1872.  
  1873.             if (sect_lastUpdate) return;
  1874.             sect_lastUpdate = 1;
  1875.  
  1876.             timeline.setTimeout(function() {
  1877.               //console.log(2633)
  1878.               if (holder.textContent !== sect_hText && sect_hTime > 0) {
  1879.  
  1880.                 if (querySelectorAllFromAnchor.call(comments,'[tabview-cache-time]').length === 1) {
  1881.  
  1882.                   sect_hTime--;
  1883.  
  1884.                   let innerCommentsLoaderRet = _innerCommentsLoader(rootElement);
  1885.  
  1886.                   if (innerCommentsLoaderRet) {
  1887.                     //console.log(9442)
  1888.                     innerCommentsLoaderRet.f();
  1889.                     fetchCommentsFinished();
  1890.                   }
  1891.  
  1892.                   pendingOne = false;
  1893.  
  1894.                 }
  1895.  
  1896.  
  1897.               }
  1898.               sect_lastUpdate = 0
  1899.             }, 400)
  1900.  
  1901.           } else if (sect_holder) {
  1902.             sect_holder = null
  1903.             sect_hTime = 0;
  1904.             sect_lastUpdate = 0;
  1905.             pendingOne = false;
  1906.             timeline.setTimeout(()=>{
  1907.               if(!deferredVarYTDHidden && scheduledCommentRefresh && Q.comments_section_loaded>0 && comments.hasAttribute('hidden')){
  1908.  
  1909.                 scheduledCommentRefresh=false; // logic tbc
  1910.                 resetCommentSection();
  1911.                 
  1912.               }
  1913.             },142);
  1914.             
  1915.             Q.mutationTarget=null;
  1916.             FP.mtf_attrComments(); // in case for popstate
  1917.           }
  1918.  
  1919.  
  1920.         } else {
  1921.  
  1922.           //console.log(9443)
  1923.           innerCommentsLoaderRet.f();
  1924.           fetchCommentsFinished();
  1925.  
  1926.           pendingOne = true;
  1927.  
  1928.         }
  1929.  
  1930.  
  1931.  
  1932.       }
  1933.  
  1934.       function observerHook(mutationsList, observer){
  1935.  
  1936.         let valid = false
  1937.         for (const mutation of mutationsList) {
  1938.  
  1939.           let target = mutation.target;
  1940.           if (!target) break;
  1941.           if (!target.id) break;
  1942.           let classList = target.classList;
  1943.  
  1944.  
  1945.           if (
  1946.             classList.contains('ytd-item-section-renderer') ||
  1947.             classList.contains('ytd-comments-header-renderer') ||
  1948.             classList.contains('ytd-message-renderer')) {
  1949.             valid = true
  1950.             break;
  1951.           }
  1952.  
  1953.           break; // only outest mutation
  1954.  
  1955.  
  1956.         }
  1957.         if (valid) ulfx();
  1958.       }
  1959.  
  1960.       
  1961.       if(sections.hasAttribute('tabview-comment-section-checked')){
  1962.  
  1963.         //console.log(3612)
  1964.         ulfx();
  1965.         
  1966.  
  1967.       }else{
  1968.  
  1969.         pendingOne = false;
  1970.         //console.log(3611)
  1971.         const observer = new MutationObserver(observerHook)
  1972.         sections.setAttribute('tabview-comment-section-checked','')
  1973.         const config = { childList: true, subtree: true }; 
  1974.         observer.observe(sections, config);
  1975.         ulfx();
  1976.  
  1977.  
  1978.       }
  1979.  
  1980.  
  1981.  
  1982.     }
  1983.     //console.log(3241, location.href)
  1984.     
  1985.     let cid_render_section = timeline.setInterval(function() {
  1986.  
  1987.      // console.log(3244, location.href)
  1988.  
  1989.  
  1990.       const rootElement = comments.parentNode
  1991.  
  1992.       let sections = querySelectorFromAnchor.call(rootElement,'ytd-comments#comments > ytd-item-section-renderer#sections');
  1993.  
  1994.  
  1995.       if (sections) {
  1996.  
  1997.         timeline.clearInterval(cid_render_section);
  1998.         foundSection(sections);
  1999.  
  2000.       }
  2001.  
  2002.     }, 30)
  2003.  
  2004.  
  2005.  
  2006.   }
  2007.  
  2008.  
  2009.   let mtc_store=0;
  2010.   let mtc_cid = 0;
  2011.   const cssOnceFunc = {
  2012.     [`ytd-comments#comments:not([o3r-${sa_comments}])`]:(comments)=>{
  2013.       
  2014.       // once per {ytd-comments#comments} detection
  2015.  
  2016.       let ytdFlexyElm = kRef(ytdFlexy);
  2017.       if (!scriptEnable || !ytdFlexyElm) return;
  2018.  
  2019.       if (!comments) return;
  2020.  
  2021.  
  2022.  
  2023.  
  2024.       if(mtoVisibility_Comments.bindElement(comments)){
  2025.         mtoVisibility_Comments.observer.check(9);
  2026.       }
  2027.       
  2028.       pageInit_attrComments = true
  2029.       hookSection();
  2030.  
  2031.       //let dComments = comments
  2032.       //timeline.setTimeout(() => nativeFunc(dComments, "loadComments"), 20)
  2033.       //comments = null;
  2034.  
  2035.     },
  2036.     [`ytd-playlist-panel-renderer#playlist:not([o3r-${sa_playlist}])`]:(playlist)=>{
  2037.  
  2038.         // once per {ytd-playlist-panel-renderer#playlist} detection
  2039.  
  2040.         let ytdFlexyElm = kRef(ytdFlexy);
  2041.         if (!scriptEnable || !ytdFlexyElm) return;
  2042.  
  2043.         if (!playlist) return;
  2044.  
  2045.         if(mtoVisibility_Playlist.bindElement(playlist)){
  2046.           mtoVisibility_Playlist.observer.check(9)  //delay check required for browser bug - hidden changed not triggered 
  2047.         }
  2048.         playlist = null;
  2049.  
  2050.         return;
  2051.  
  2052.     },
  2053.     '#meta-contents ytd-expander:not([tabview-info-expander])':(expander)=>{
  2054.  
  2055.         // once per $$native-info-description$$ {#meta-contents ytd-expander} detection
  2056.  
  2057.         let ytdFlexyElm = kRef(ytdFlexy);
  2058.         if (!scriptEnable || !ytdFlexyElm) return ;
  2059.  
  2060.         if (!expander) return ;
  2061.         expander.setAttribute('tabview-info-expander','')
  2062.         $(expander).appendTo("#tab-info").attr('data-dom-changed-by-tabview-youtube', scriptVersionForExternal)
  2063.   
  2064.   
  2065.  
  2066.     },
  2067.     '#description-and-actions.style-scope.ytd-watch-metadata > #description ytd-text-inline-expander:not([tabview-removed-duplicate])': (teaserInfo)=>{
  2068.  
  2069.  
  2070.       // for Teaser UI
  2071.       // once per {#description-and-actions.style-scope.ytd-watch-metadata > #description > ytd-text-inline-expander} detection
  2072.  
  2073.       let ytdFlexyElm = kRef(ytdFlexy);
  2074.       if (!scriptEnable || !ytdFlexyElm) return ;
  2075.       let addedInfo = document.querySelector('#tab-info ytd-expander[tabview-info-expander]');
  2076.  
  2077.       if(!addedInfo) return;
  2078.  
  2079.       if(!document.documentElement.hasAttribute('tabview-injection-js-1-ready')) return;
  2080.  
  2081.       teaserInfo.setAttribute('tabview-removed-duplicate','')
  2082.  
  2083.  
  2084.       teaserInfo.dispatchEvent(new CustomEvent('tabview-no-duplicate-info'))
  2085.       //console.log(56)
  2086.  
  2087.     }
  2088.   }
  2089.   const cssOnce = Object.keys(cssOnceFunc).join(', ')
  2090.  
  2091.   const regularCheck = (addP, removeP, mutationTarget)=>{
  2092.  
  2093.  
  2094.     let isInvalidAdding = mutationTarget && !mutationTarget.parentNode
  2095.  
  2096.       
  2097.     let promisesForAddition = !scriptEnable ? [] : addP > 0 && !isInvalidAdding ? [
  2098.  
  2099.         (async () => {
  2100.  
  2101.           
  2102.           //$callOnce('mtf_checkFlexy');
  2103.  
  2104.           const rootElement = Q.mutationTarget || kRef(ytdFlexy);
  2105.  
  2106.           if(rootElement){
  2107.  
  2108.             let fElms = querySelectorAllFromAnchor.call(rootElement,cssOnce)
  2109.             if(fElms.length>0){
  2110.  
  2111.               for(const fElm of fElms){
  2112.                 for(let cssSelctor in cssOnceFunc){
  2113.                   if(fElm.matches(cssSelctor)){
  2114.                     let f= cssOnceFunc[cssSelctor]
  2115.                     if(typeof f=='function') f(fElm);
  2116.                     break;
  2117.                   }
  2118.  
  2119.                 }
  2120.               }
  2121.  
  2122.               //$callOnce('mtf_initalAttr_comments');
  2123.               //$callOnce('mtf_initalAttr_playlist');
  2124.               // $callOnce('mtf_checkDescriptionLoaded');
  2125.             }
  2126.  
  2127.           }
  2128.  
  2129.         })(),
  2130.     
  2131.         (async () => {
  2132.  
  2133.  
  2134.           FP.mtf_initalAttr_chatroom();
  2135.           FP.mtf_initalAttr_engagement_panel();
  2136.           
  2137.           //$callOnce('mtf_initalAttr_chatroom');
  2138.          // $callOnce('mtf_initalAttr_engagement_panel');
  2139.  
  2140.           mtf_forceCheckLiveVideo();
  2141.             mtf_append_comments();
  2142.             mtf_liveChatBtnF();
  2143.             fixTabs();
  2144.             mtf_AfterFixTabs();
  2145.             mtf_append_playlist();
  2146.  
  2147.         })()
  2148.  
  2149.     ] : [];
  2150.     
  2151.   
  2152.     
  2153.     let promisesForEveryMutation = !scriptEnable ? [] : [
  2154.         (async () => {
  2155.             mtf_fix_details();
  2156.             mtf_ChatExist();
  2157.         })()
  2158.     ];
  2159.  
  2160.     return [...promisesForAddition, ...promisesForEveryMutation]
  2161.  
  2162.  
  2163.   }
  2164.  
  2165.   function setOnlyOneEPanel(ePanel){
  2166.  
  2167.     layoutStatusMutex.lockWith(unlock => {
  2168.  
  2169.       let cPanels = engagement_panels_();
  2170.       for (const entry of cPanels.list) {
  2171.         if (entry.ePanel != ePanel && entry.visible) ytBtnCloseEngagementPanel(entry.ePanel);
  2172.       }
  2173.       setTimeout(unlock, 30)
  2174.  
  2175.     })
  2176.  
  2177.   }
  2178.  
  2179.   const FP = {
  2180.  
  2181.     mtoNav_delayedF: () => {
  2182.  
  2183.       let { addP, removeP, mutationTarget } = Q;
  2184.  
  2185.       Q.addP = 0;
  2186.       Q.removeP = 0;
  2187.       
  2188.       mtc_store=Date.now()+1870
  2189.  
  2190.  
  2191.       let regularChecks = regularCheck(addP, removeP, mutationTarget);
  2192.  
  2193.       Promise.all(regularChecks).then(() => {
  2194.         regularChecks = null;
  2195.         
  2196.         mtc_store= Date.now() + 3870 // pending Comments start to load
  2197.         
  2198.         Q.mutationTarget = null;
  2199.  
  2200.         Q.mtoNav_requestNo--;
  2201.         //console.log('motnav reduced to', mtoNav_requestNo)
  2202.         if (Q.mtoNav_requestNo > 0) {
  2203.           Q.mtoNav_requestNo = 1;
  2204.           setTimeout(FP.mtoNav_delayedF, mtoInterval);
  2205.         }
  2206.       })
  2207.  
  2208.  
  2209.     },
  2210.  
  2211.     mtoNavF: ( /** @type {MutationRecord[]} */ mutations,  /** @type {MutationObserver} */   observer) => {
  2212.       //subtree DOM mutation checker - {ytd-watch-flexy} \single \subtree
  2213.  
  2214.       newVideoPageCheck()
  2215.  
  2216.       if (!scriptEnable) return;
  2217.       if (deferredVarYTDHidden) return;
  2218.  
  2219.       let ch = false;
  2220.  
  2221.       let reg = [];
  2222.       let dTarget = null;
  2223.  
  2224.       let wAddP = 0,
  2225.         wRemoveP = 0;
  2226.  
  2227.       let _last_mto_target = null;
  2228.       let _last_mto_target_valid = null;
  2229.  
  2230.       for (const mutation of mutations) {
  2231.         if (!mutation || !mutation.target || !mutation.target.parentNode) continue;
  2232.  
  2233.         let elementalMutation = false;
  2234.         let tAddP = 0,
  2235.           tRemoveP = 0;
  2236.  
  2237.         for (const addedNode of mutation.addedNodes) { //theoretically faster: only reading of states
  2238.           if (addedNode.nodeType === 1) {
  2239.             tAddP++;
  2240.             elementalMutation = true;
  2241.           }
  2242.         }
  2243.  
  2244.         for (const removedNode of mutation.removedNodes) { //theoretically faster: only reading of states
  2245.           if (removedNode.nodeType === 1) {
  2246.             tRemoveP++;
  2247.             elementalMutation = true;
  2248.           }
  2249.         }
  2250.  
  2251.         if (elementalMutation) { //skip all addition and removal operations without elemental changes (e.g. textNode modification)
  2252.  
  2253.           if (_last_mto_target === mutation.target) {
  2254.             // due to addition and removal operations to the same DOM
  2255.             if (_last_mto_target_valid) {
  2256.               // AddP & RemoveP is still valid
  2257.               wAddP += tAddP;
  2258.               wRemoveP += tRemoveP;
  2259.             }
  2260.             continue;
  2261.           }
  2262.           _last_mto_target = mutation.target;
  2263.  
  2264.           if (isMtoTargetSkip(mutation)) {
  2265.             _last_mto_target_valid = false;
  2266.             continue; //theoretically slower: creation of string variables
  2267.           } else {
  2268.             _last_mto_target_valid = true;
  2269.             wAddP += tAddP;
  2270.             wRemoveP += tRemoveP;
  2271.           }
  2272.  
  2273.  
  2274.  
  2275.           ch = true;
  2276.  
  2277.           reg.push(mutation);
  2278.  
  2279.           if (dTarget === null) dTarget = mutation.target; //first
  2280.           else if (dTarget === true) {} //ytdFlexy
  2281.           else if (dTarget.contains(mutation.target)) {} //first node is the container to all subsequential targets
  2282.           else { dTarget = true; } //the target is not the child of first node
  2283.  
  2284.         }
  2285.  
  2286.       }
  2287.  
  2288.       if (!ch) return; // dTarget must be true OR HTMLElement
  2289.  
  2290.       if (dTarget === true) dTarget = kRef(ytdFlexy); // major mutation occurance
  2291.       else if (dTarget === kRef(comments_section_loaded_elm) && wAddP > wRemoveP) return true; // ignore if comments are loaded (adding comments)
  2292.       else if (isMtoOverallSkip(dTarget)) return; // allow for multiple mutations at the same time - determinated after looping
  2293.  
  2294.  
  2295.  
  2296.       // 4 ~ 16 times per full page loading
  2297.  
  2298.       Q.addP += wAddP;
  2299.       Q.removeP += wRemoveP;
  2300.  
  2301.       if (Q.mutationTarget === null) Q.mutationTarget = dTarget;
  2302.       else if (Q.mutationTarget != dTarget) Q.mutationTarget = kRef(ytdFlexy);
  2303.  
  2304.       //console.log(prettyElm(dTarget), wAddP , wRemoveP, mtoInterval)
  2305.       //console.log(prettyElm(dTarget), reg.map(m=>prettyElm(m.target)))
  2306.       //console.log(7015, performance.now())
  2307.  
  2308.  
  2309.  
  2310.       Q.mtoNav_requestNo++;
  2311.       if (Q.mtoNav_requestNo == 1) setTimeout(FP.mtoNav_delayedF, mtoInterval);
  2312.  
  2313.     },
  2314.  
  2315.  
  2316.     mtoBodyF: ( /** @type {MutationRecord[]} */ mutations,  /** @type {MutationObserver} */   observer) => {
  2317.       //subtree DOM mutation checker - {body} \single \subtree
  2318.  
  2319.       if (!scriptEnable) return;
  2320.       if (deferredVarYTDHidden) return;
  2321.  
  2322.       for (const mutation of mutations) {
  2323.         for (const addedNode of mutation.addedNodes)
  2324.           if (addedNode.nodeType === 1) {
  2325.             if (addedNode.nodeName == "DIV" && addedNode.matches('.autocomplete-suggestion:not([autocomplete-disable-updatesc])') ) {
  2326.               mtf_fixAutoCompletePosition(addedNode)
  2327.             }else if(addedNode.nodeName == "DIV" && (addedNode.id==='lyricscontainer' || addedNode.id==='showlyricsbutton')){
  2328.  
  2329.               goYoutubeGeniusLyrics();
  2330.  
  2331.             }
  2332.           }
  2333.       }
  2334.  
  2335.     },
  2336.  
  2337.     mtf_attrPlaylist: (attrName, newValue) => {
  2338.       //attr mutation checker - {ytd-playlist-panel-renderer#playlist} \single
  2339.       //::attr ~ hidden    
  2340.       //console.log(1210)
  2341.  
  2342.       if (!scriptEnable) return;
  2343.       if (deferredVarYTDHidden) return;
  2344.       let cssElm = kRef(ytdFlexy);
  2345.       if (!cssElm) return;
  2346.  
  2347.       let playlist = document.querySelector('ytd-playlist-panel-renderer#playlist')
  2348.       const tabBtn = document.querySelector('[userscript-tab-content="#tab-list"]');
  2349.       let isPlaylistHidden = playlist.hasAttribute('hidden')
  2350.       //console.log(1212.2, isPlaylistHidden, playlist.getAttribute('hidden'))
  2351.       if (tabBtn) {
  2352.         //console.log('attr playlist changed')
  2353.         if (tabBtn.classList.contains('tab-btn-hidden') && !isPlaylistHidden) {
  2354.           //console.log('attr playlist changed - no hide')
  2355.           tabBtn.classList.remove("tab-btn-hidden");
  2356.         } else if (!tabBtn.classList.contains('tab-btn-hidden') && isPlaylistHidden) {
  2357.           //console.log('attr playlist changed - add hide')
  2358.           hideTabBtn(tabBtn);
  2359.         }
  2360.       }
  2361.       /* visible layout for triggering hidden removal */
  2362.       akAttr(cssElm, 'tabview-youtube-playlist', isPlaylistHidden);
  2363.     },
  2364.     mtf_attrComments: (attrName, newValue) => {
  2365.       //attr mutation checker - {ytd-comments#comments} \single
  2366.       //::attr ~ hidden
  2367.  
  2368.       let ytdFlexyElm = kRef(ytdFlexy);
  2369.       if (!scriptEnable || !ytdFlexyElm) return;
  2370.       if (deferredVarYTDHidden) return;
  2371.  
  2372.       let comments = document.querySelector('ytd-comments#comments')
  2373.       const tabBtn = document.querySelector('[userscript-tab-content="#tab-comments"]');
  2374.       if (!comments || !tabBtn) return;
  2375.       let isCommentHidden = comments.hasAttribute('hidden')
  2376.       //console.log('attr comments changed')
  2377.  
  2378.       mtoInterval = mtoInterval1;
  2379.       
  2380.       mtc_store=Date.now()+2870
  2381.  
  2382.       if( mtf_forceCheckLiveVideo_disable === 2 ){
  2383.  
  2384.       }else if (!isCommentHidden) {
  2385.         
  2386.  
  2387.         akAttr(ytdFlexyElm, 'tabview-youtube-comments', false, 'K');
  2388.  
  2389.  
  2390.  
  2391.         //console.log('attr comments changed - no hide')
  2392.         tabBtn.classList.remove("tab-btn-hidden") //if contains
  2393.  
  2394.             
  2395.         
  2396.         //console.log(703)
  2397.  
  2398.         mtc_cid&&timeline.clearInterval(mtc_cid);
  2399.  
  2400.       } else if (isCommentHidden) {
  2401.  
  2402.         akAttr(ytdFlexyElm, 'tabview-youtube-comments', true, 'K'); 
  2403.         
  2404.         timeline.setTimeout(function(){
  2405.           if(!deferredVarYTDHidden && scheduledCommentRefresh && Q.comments_section_loaded>0 && comments.hasAttribute('hidden')){
  2406.             //console.log(3434)
  2407.             scheduledCommentRefresh=false;  //logic tbc
  2408.             resetCommentSection();
  2409.             //console.log(8022)
  2410.           }
  2411.         },142)
  2412.  
  2413.  
  2414.         if(!mtc_cid) mtc_cid=timeline.setInterval(()=>{
  2415.           if(mtc_store>Date.now()) return;
  2416.             timeline.clearInterval(mtc_cid)
  2417.             mtc_cid=0;
  2418.             if(mtf_forceCheckLiveVideo_disable===2)return;
  2419.             if(isNullComments()) _disableComments();
  2420.  
  2421.         },80)
  2422.  
  2423.       }
  2424.  
  2425.  
  2426.     },
  2427.  
  2428.  
  2429.     mtf_attrChatroom: (attrName, newValue) => {
  2430.       //attr mutation checker - {ytd-live-chat-frame#chat} \single
  2431.       //::attr ~ collapsed
  2432.  
  2433.       let ytdFlexyElm = kRef(ytdFlexy);
  2434.       if (!scriptEnable || !ytdFlexyElm) return;
  2435.       if (deferredVarYTDHidden) return;
  2436.  
  2437.       layoutStatusMutex.lockWith(unlock => {
  2438.  
  2439.         const chatBlock = document.querySelector('ytd-live-chat-frame#chat')
  2440.         const cssElm = kRef(ytdFlexy)
  2441.  
  2442.         if (!chatBlock || !cssElm) {
  2443.           unlock();
  2444.           return;
  2445.         }
  2446.  
  2447.         if (deferredVarYTDHidden) {
  2448.           unlock();
  2449.           return;
  2450.         }
  2451.  
  2452.         if (!cssElm.hasAttribute('userscript-chatblock')) wAttr(cssElm, 'userscript-chatblock', true);
  2453.         let isCollapsed = !!chatBlock.hasAttribute('collapsed');
  2454.         wAttr(cssElm, 'userscript-chat-collapsed', isCollapsed);
  2455.  
  2456.         if (cssElm.hasAttribute('userscript-chatblock') && !isCollapsed) lastShowTab = '#chatroom';
  2457.  
  2458.         if (!isCollapsed && document.querySelector('#right-tabs .tab-btn.active') && isWideScreenWithTwoColumns() && !isTheater()) {
  2459.           switchTabActivity(null);
  2460.           timeline.setTimeout(unlock, 40);
  2461.         } else {
  2462.           unlock();
  2463.         }
  2464.  
  2465.         if (!isCollapsed) {
  2466.           runAfterExpandChat();
  2467.         } else {
  2468.           chatBlock.removeAttribute('yt-userscript-iframe-loaded');
  2469.         }
  2470.  
  2471.       })
  2472.  
  2473.  
  2474.  
  2475.  
  2476.     },
  2477.  
  2478.     mtf_attrEngagementPanel: ( /** @type {MutationRecord[]} */ mutations,  /** @type {MutationObserver} */   observer) => {
  2479.       //attr mutation checker - {ytd-engagement-panel-section-list-renderer} \mutiple
  2480.       //::attr ~ visibility
  2481.  
  2482.       let ytdFlexyElm = kRef(ytdFlexy);
  2483.       if (!scriptEnable || !ytdFlexyElm) return;
  2484.  
  2485.       //multiple instance
  2486.       if (mutations) {
  2487.         for (const mutation of mutations) {
  2488.           let ePanel = mutation.target;
  2489.           if (ePanel.getAttribute('visibility') == 'ENGAGEMENT_PANEL_VISIBILITY_EXPANDED') {
  2490.             setOnlyOneEPanel(ePanel);
  2491.             break;
  2492.           }
  2493.         }
  2494.       }
  2495.       if (deferredVarYTDHidden) return;
  2496.  
  2497.       layoutStatusMutex.lockWith(unlock => {
  2498.  
  2499.         const ePanel = document.querySelector('ytd-watch-flexy ytd-engagement-panel-section-list-renderer')
  2500.         const cssElm = kRef(ytdFlexy)
  2501.  
  2502.         if (!ePanel || !cssElm) {
  2503.           unlock();
  2504.           return;
  2505.         }
  2506.         let previousValue = +cssElm.getAttribute('userscript-engagement-panel') || 0;
  2507.  
  2508.         let { shownRes, value, count } = engagement_panels_();
  2509.         let nextValue = value;
  2510.         let nextCount = count;
  2511.  
  2512.  
  2513.         if (nextCount == 0 && cssElm.hasAttribute('userscript-engagement-panel')) {
  2514.           storeLastPanel=null;
  2515.           wAttr(cssElm, 'userscript-engagement-panel', false);
  2516.           unlock();
  2517.         } else {
  2518.  
  2519.           if ((nextCount > 1) || (cssElm.hasAttribute('userscript-engagement-panel') && previousValue === nextValue)) {
  2520.             unlock();
  2521.             return;
  2522.           }
  2523.  
  2524.           cssElm.setAttribute('userscript-engagement-panel', nextValue);
  2525.  
  2526.           let b = false;
  2527.           if (previousValue != nextValue && nextValue > 0) {
  2528.             lastShowTab = `#engagement-panel-${nextValue}`;
  2529.             b = true;
  2530.             storeLastPanel = mWeakRef( shownRes[0])
  2531.             //console.log(9999, shownRes[0])
  2532.           }
  2533.  
  2534.           if (b && document.querySelector('#right-tabs .tab-btn.active') && isWideScreenWithTwoColumns() && !isTheater()) {
  2535.             switchTabActivity(null);
  2536.             timeline.setTimeout(unlock, 40);
  2537.           } else {
  2538.             unlock();
  2539.           }
  2540.         }
  2541.  
  2542.       })
  2543.  
  2544.  
  2545.  
  2546.  
  2547.     },
  2548.  
  2549.     mtf_initalAttr_playlist: () => {
  2550.       
  2551.     },
  2552.  
  2553.     mtf_initalAttr_comments: () => {
  2554.       
  2555.     },
  2556.  
  2557.     mtf_initalAttr_chatroom: () => {
  2558.       // every per [new] {ytd-live-chat-frame#chat} detection - reset after mini-playview
  2559.       
  2560.       let ytdFlexyElm = kRef(ytdFlexy);
  2561.       if (!scriptEnable || !ytdFlexyElm) return true;
  2562.  
  2563.       const rootElement = Q.mutationTarget || ytdFlexyElm;
  2564.  
  2565.  
  2566.       if (!mgChatFrame.inPage()) {
  2567.  
  2568.         mtoVisibility_Chatroom.clear(true);
  2569.  
  2570.         let chatroom = querySelectorFromAnchor.call(rootElement,`ytd-live-chat-frame#chat:not([${sa_chatroom}]`)
  2571.         if (chatroom) {
  2572.           mgChatFrame.setVar(chatroom);
  2573.  
  2574.           if(mtoVisibility_Chatroom.bindElement(chatroom)){
  2575.             mtoVisibility_Chatroom.observer.check(9)
  2576.           }
  2577.  
  2578.           chatroom = null
  2579.         }
  2580.       }
  2581.       return true;
  2582.  
  2583.     },
  2584.  
  2585.     mtf_initalAttr_engagement_panel: () => {
  2586.       // every per $$non-checked-section-list$$ {ytd-watch-flexy ytd-engagement-panel-section-list-renderer:not([o3r-XXXXX])} detection
  2587.       
  2588.       let ytdFlexyElm = kRef(ytdFlexy);
  2589.       if (!scriptEnable || !ytdFlexyElm) return true;
  2590.  
  2591.       const rootElement = Q.mutationTarget || ytdFlexyElm;
  2592.  
  2593.       let toCheck = false;
  2594.       for (const engagement_panel of querySelectorAllFromAnchor.call(rootElement,
  2595.         `ytd-watch-flexy ytd-engagement-panel-section-list-renderer:not([o3r-${sa_epanel}])`
  2596.         )) {
  2597.  
  2598.  
  2599.  
  2600.         let bindRes = mtoVisibility_EngagementPanel.bindElement(engagement_panel, {
  2601.           attributes: true,
  2602.           attributeFilter: ['visibility'],
  2603.           attributeOldValue: true
  2604.         })
  2605.         
  2606.  
  2607.         if(bindRes) toCheck = true;
  2608.       }
  2609.  
  2610.       if (toCheck) FP.mtf_attrEngagementPanel()
  2611.  
  2612.       return true;
  2613.     },
  2614.  
  2615.  
  2616.  
  2617.     //live-chat / chat-replay
  2618.  
  2619.     fireOnce_forceCheckLiveVideo_tf: () => {
  2620.       // once per $$player-playback-timestamp$$ {#ytd-player .ytp-time-display} &&  $$chat-frame$$ {ytd-live-chat-frame#chat} detection
  2621.  
  2622.       let ytdFlexyElm = kRef(ytdFlexy);
  2623.       if (!scriptEnable || !ytdFlexyElm) return;
  2624.  
  2625.       let elm = document.querySelector('#ytd-player .ytp-time-display');
  2626.       if (elm && elm.classList.contains('ytp-live')) {
  2627.         //console.log(7006)
  2628.         ytdFlexyElm.setAttribute('userscript-chatblock', 'chat-live')
  2629.         //console.log(2441)
  2630.         mtf_forceCheckLiveVideo_disable = 2;
  2631.         
  2632.         _disableComments();
  2633.         
  2634.        //console.log(701)
  2635.         //disableComments_LiveChat();
  2636.       }
  2637.     },
  2638.  
  2639.     
  2640.  
  2641.     //comments
  2642. /*
  2643.     mtf_advancedComments: () => {
  2644.       // once per {ytd-comments#comments #continuations} detection
  2645.  
  2646.       //let ytdFlexyElm = kRef(ytdFlexy);
  2647.       //if (!scriptEnable || !ytdFlexyElm) return true;
  2648.  
  2649.       //const rootElement = Q.mutationTarget || ytdFlexyElm;
  2650.       //const continuations = document.querySelector("ytd-comments#comments #continuations");
  2651.       //if (!continuations) return true;
  2652.       //requestingComments = document.querySelector('ytd-comments#comments');
  2653.       //scrollForComments();
  2654.       return false;
  2655.     }
  2656.     */
  2657.  
  2658.  
  2659.   }
  2660.  
  2661.  
  2662.  
  2663.  
  2664.  
  2665.   /** @type {WeakRef | null} */ 
  2666.   let displayedPlaylist = null;
  2667.   
  2668.   /** @type {WeakRef | null} */ 
  2669.   let scrollingVideosList = null;
  2670.  
  2671.   let scriptEnable = false;
  2672.   let scriptEC = 0;
  2673.   let lastShowTab = null;
  2674.  
  2675.   let _cachedLastVideo = null;
  2676.   let videoListBeforeSearch = null;
  2677.   let no_fix_contents_until = 0;
  2678.   let no_fix_playlist_until = 0;
  2679.   let statusCollasped = 0;
  2680.  
  2681.   /** @type {WeakRef | null} */ 
  2682.   let ytdFlexy = null;
  2683.  
  2684.   function pluginUnhook() {
  2685.     _pluginUnhook();
  2686.     resetCommentSection();
  2687.   }
  2688.  
  2689.   function _pluginUnhook() {
  2690.  
  2691.     sect_lastUpdate = 0;
  2692.     sect_holder = null;
  2693.     sect_hTime = 0;
  2694.  
  2695.     //console.log(8001)
  2696.  
  2697.     videoListBeforeSearch = null;
  2698.     statusCollasped = 0;
  2699.     _cachedLastVideo = null;
  2700.     lastShowTab = null;
  2701.     displayedPlaylist = null;
  2702.     scrollingVideosList = null;
  2703.     scriptEnable = false;
  2704.     scriptEC++;
  2705.     if (scriptEC > 788888888) scriptEC = 188888888;
  2706.     ytdFlexy = null;
  2707.     wls.layoutStatus = null;
  2708.  
  2709.     //console.log('unc01')
  2710.  
  2711.     mtoVisibility_EngagementPanel.clear(true)
  2712.     mtoVisibility_Playlist.clear(true)
  2713.     mtoVisibility_Comments.clear(true)
  2714.  
  2715.     mgChatFrame.kVar = null;
  2716.     mtoVisibility_Chatroom.clear(true)
  2717.     mtoFlexyAttr.clear(true)
  2718.  
  2719.     
  2720.  
  2721.     for (const elem of document.querySelectorAll(
  2722.       ['ytd-expander[tabview-info-expander]'].join(', ')
  2723.       )) {
  2724.         elem.removeAttribute('tabview-info-expander');
  2725.     }
  2726.  
  2727.     
  2728.     mtoMutation_body.clear(true)
  2729.     mtoMutation_watchFlexy.clear(true)
  2730.     //FOnce.mtf_checkFlexy = null;
  2731.     //FOnce.mtf_initalAttr_comments = null;
  2732.     //FOnce.mtf_initalAttr_playlist = null;
  2733.     //FOnce.mtf_initalAttr_chatroom = null;
  2734.     //FOnce.mtf_initalAttr_engagement_panel = null;
  2735.     //FOnce.mtf_advancedComments = null;
  2736.     //FOnce.mtf_checkDescriptionLoaded = null;
  2737.     //FOnce.mtf_forceCheckLiveVideo = null;
  2738.     Q.mtf_chatBlockQ = null;
  2739.  
  2740.  
  2741.     mtoInterval = mtoInterval1;
  2742.  
  2743.   }
  2744.  
  2745.   let comments_section_loaded_elm = null;
  2746.  
  2747.  
  2748.  
  2749.   function getTabsHTML() {
  2750.  
  2751.     const sTabBtnVideos = `${svgElm(16,16,298,298,svgVideos)}<span>Videos</span>`
  2752.     const sTabBtnInfo = `${svgElm(16,16,23.625,23.625,svgInfo)}<span>Info</span>`
  2753.     const sTabBtnPlayList = `${svgElm(16,16,426.667,426.667,svgPlayList)}<span>Playlist</span>`
  2754.  
  2755.     let str1 = `
  2756.         <paper-ripple class="style-scope yt-icon-button">
  2757.             <div id="background" class="style-scope paper-ripple" style="opacity:0;"></div>
  2758.             <div id="waves" class="style-scope paper-ripple"></div>
  2759.         </paper-ripple>
  2760.         `;
  2761.  
  2762.     let str_fbtns = `
  2763.     <div class="font-size-right">
  2764.     <div class="font-size-btn font-size-plus">
  2765.     <svg width="12" height="12" viewbox="0 0 50 50" preserveAspectRatio="xMidYMid meet" 
  2766.     stroke="currentColor" stroke-width="6" stroke-linecap="round" vector-effect="non-scaling-size">
  2767.       <path d="M12 25h26"/><path d="M25 12v26"/>
  2768.     </svg>
  2769.     </div><div class="font-size-btn font-size-minus">
  2770.     <svg width="12" height="12" viewbox="0 0 50 50" preserveAspectRatio="xMidYMid meet"
  2771.     stroke="currentColor" stroke-width="6" stroke-linecap="round" vector-effect="non-scaling-size">
  2772.       <path d="M12 25h26"/>
  2773.     </svg>
  2774.     </div>
  2775.     </div>
  2776.     `.replace(/[\r\n]+/g,'')
  2777.  
  2778.     const str_tabs = [
  2779.             `<a id="tab-btn1" data-name="info" userscript-tab-content="#tab-info" class="tab-btn">${sTabBtnInfo}${str1}${str_fbtns}</a>`,
  2780.             `<a id="tab-btn3" userscript-tab-content="#tab-comments" data-name="comments" class="tab-btn">${svgElm(16,16,60,60,svgComments)}<span id="tab3-txt-loader"></span>${str1}${str_fbtns}</a>`,
  2781.             `<a id="tab-btn4" userscript-tab-content="#tab-videos" data-name="videos" class="tab-btn">${sTabBtnVideos}${str1}${str_fbtns}</a>`,
  2782.             `<a id="tab-btn5" userscript-tab-content="#tab-list" class="tab-btn">${sTabBtnPlayList}${str1}${str_fbtns}</a>`
  2783.         ].join('')
  2784.  
  2785.     let addHTML = `
  2786.         <div id="right-tabs">
  2787.             <header>
  2788.                 <div id="material-tabs">
  2789.                     ${str_tabs}
  2790.                 </div>
  2791.             </header>
  2792.             <div class="tab-content">
  2793.                 <div id="tab-info" class="tab-content-cld tab-content-hidden" userscript-scrollbar-render></div>
  2794.                 <div id="tab-comments" class="tab-content-cld tab-content-hidden" userscript-scrollbar-render></div>
  2795.                 <div id="tab-videos" class="tab-content-cld tab-content-hidden" userscript-scrollbar-render></div>
  2796.                 <div id="tab-list" class="tab-content-cld tab-content-hidden" userscript-scrollbar-render></div>
  2797.             </div>
  2798.         </div>
  2799.         `;
  2800.  
  2801.     return addHTML
  2802.  
  2803.   }
  2804.  
  2805.  
  2806.   function onVideoChange() {
  2807.     // for popstate & next video
  2808.  
  2809.     newVideoPageCheck();
  2810.  
  2811.     scheduledCommentRefresh=true;
  2812.     let comments = document.querySelector('ytd-comments#comments')
  2813.     
  2814.     if(!deferredVarYTDHidden && scheduledCommentRefresh && Q.comments_section_loaded>0 && comments.hasAttribute('hidden')){
  2815.  
  2816.       scheduledCommentRefresh=false; 
  2817.       
  2818.       // comment tab btn - hide by timer in attribute change
  2819.       resetCommentSection();
  2820.     }
  2821.  
  2822.     mtf_forceCheckLiveVideo_disable = 0
  2823.     mtc_store= Date.now()+3870
  2824.  
  2825.     if (deferredVarYTDHidden) {  // reset info when hidden
  2826.       
  2827.       resetCommentSection();
  2828.     }else{
  2829.       checkVisibleEngagementPanel();
  2830.       atChange(); // in case no mutation occurance
  2831.     }
  2832.  
  2833.  
  2834.  
  2835.   }
  2836.  
  2837.   function onNavigationEnd(evt) {
  2838.     console.log('yt-navigate-finish')
  2839.     
  2840.     no_fix_contents_until = 0;
  2841.     no_fix_playlist_until = 0;
  2842.     
  2843.     document.documentElement.setAttribute('youtube-ready','')
  2844.     
  2845.     script_inject_js1.inject();
  2846.     document.documentElement.dispatchEvent(new CustomEvent('tabview-ce-hack'))
  2847.  
  2848.     forceConfig();
  2849.     /*
  2850.     console.log(window.ytcfg)
  2851.     try{
  2852.     window.ytcfg.set({
  2853.       "EXPERIMENT_FLAGS": {"kevlar_watch_metadata_refresh":false}})
  2854.     }catch(e){}
  2855.     */
  2856.  
  2857.     newVideoPageCheck(); // required for init
  2858.  
  2859.     let mRet =
  2860.       (/^https?\:\/\/(\w+\.)*youtube\.com\/watch\?(\w+\=[^\/\?\&]+\&|\w+\=?\&)*v=[\w\-\_]+/.test(window.location.href) ? 1 : 0) +
  2861.       (document.querySelector('ytd-watch-flexy[tabview-selection]') ? 2 : 0);
  2862.  
  2863.     if (mRet === 1) {
  2864.  
  2865.       document.addEventListener('loadedmetadata', function(evt) {
  2866.         if (evt.target.matches('video[tabview-mainvideo]')) {
  2867.           setTimeout(onVideoChange, 30)
  2868.         }
  2869.       }, true)
  2870.  
  2871.       pluginUnhook(); // in case not triggered by popstate - say mini playing
  2872.  
  2873.       let timeout = 4; // max. 4 animation frames
  2874.  
  2875.       let tf = () => {
  2876.  
  2877.         if (--timeout > 0 && !document.querySelector('#player video')) return requestAnimationFrame(tf);
  2878.  
  2879.         let ytdFlexyElm = document.querySelector('ytd-watch-flexy')
  2880.  
  2881.         if(!ytdFlexyElm) return;
  2882.  
  2883.  
  2884.         scriptEnable = true;
  2885.         scriptEC++;
  2886.  
  2887.         no_fix_contents_until = 0;
  2888.         no_fix_playlist_until = 0;
  2889.  
  2890.         ytdFlexy = mWeakRef(ytdFlexyElm)
  2891.  
  2892.         let timeoutR_findRelated = new Timeout();
  2893.         timeoutR_findRelated.set(function() {
  2894.           let ytdFlexyElm = kRef(ytdFlexy);
  2895.           if(!ytdFlexyElm) return true;
  2896.           let related = querySelectorFromAnchor.call(ytdFlexyElm,"#related");
  2897.           if (!related) return true;
  2898.           foundRelated(related);
  2899.         }, 100, 10)
  2900.  
  2901.         function foundRelated(related) {
  2902.           let promise = Promise.resolve();
  2903.           if (!document.querySelector("#right-tabs")) {
  2904.             promise = promise.then(() => {
  2905.               $(getTabsHTML()).insertBefore(related).attr('data-dom-created-by-tabview-youtube', scriptVersionForExternal);
  2906.             })
  2907.           }
  2908.           promise.then(runAfterTabAppended)
  2909.         }
  2910.  
  2911.         /*
  2912.         setTimeout(() => {
  2913.           for (const s of document.querySelectorAll('#right-tabs [userscript-scrollbar-render]')) {
  2914.             Promise.resolve(s).then(s => {
  2915.               if (s && s.scrollTop > 0) s.scrollTop = 0;
  2916.               let child = s.firstElementChild;
  2917.               if (child && child.scrollTop > 0) child.scrollTop = 0;
  2918.             });
  2919.           }
  2920.         }, 90)
  2921.         */
  2922.  
  2923.  
  2924.       }
  2925.  
  2926.       tf();
  2927.  
  2928.     } else if (mRet === 3) {
  2929.  
  2930.       if(!scriptEnable) return;
  2931.  
  2932.       let elmComments = document.querySelector('ytd-comments#comments')
  2933.  
  2934.       if (elmComments) {
  2935.         nativeFunc(elmComments, "loadComments")
  2936.       }
  2937.  
  2938.     } else if (mRet === 0) {
  2939.       
  2940.  
  2941.       pluginUnhook(); // in case not triggered by popstate - say mini playing
  2942.  
  2943.     }
  2944.  
  2945.     if(mRet & 1){
  2946.       
  2947.       setTimeout(()=>{
  2948.         
  2949.         Q.mutationTarget=null;
  2950.         atChange(); // in case no mutation occurance
  2951.         FP.mtf_attrComments()
  2952.       },160);
  2953.         
  2954.     }
  2955.  
  2956.   }
  2957.  
  2958.  
  2959.   function setToActiveTab(defaultTab) {
  2960.     if (isTheater() && isWideScreenWithTwoColumns()) return;
  2961.     const jElm = document.querySelector(`a[userscript-tab-content="${switchTabActivity_lastTab}"]:not(.tab-btn-hidden)`) ||
  2962.       document.querySelector(`a[userscript-tab-content="${(defaultTab||settings.defaultTab)}"]:not(.tab-btn-hidden)`) ||
  2963.       document.querySelector("a[userscript-tab-content]:not(.tab-btn-hidden)") ||
  2964.       null;
  2965.     switchTabActivity(jElm);
  2966.     return !!jElm;
  2967.   }
  2968.  
  2969.   function getWrapper(wrapperId) {
  2970.     let $wrapper = $(`#${wrapperId}`);
  2971.     if (!$wrapper[0]) $wrapper = $(`<div id="${wrapperId}"></div>`)
  2972.     return $wrapper.first();
  2973.   }
  2974.  
  2975.   function runAfterTabAppended() {
  2976.  
  2977.     document.documentElement.setAttribute('plugin-tabview-youtube', '')
  2978.  
  2979.     const ytdFlexyElm = kRef(ytdFlexy)
  2980.     if(!ytdFlexyElm) return;
  2981.     if (!ytdFlexyElm.hasAttribute('tabview-selection')) ytdFlexyElm.setAttribute('tabview-selection', '')
  2982.  
  2983.     
  2984.  
  2985.     
  2986.     //console.log('unc02')
  2987.  
  2988.     // append the next videos 
  2989.     // it exists as "related" is already here
  2990.     fixTabs();
  2991.  
  2992.     // just switch to the default tab
  2993.     setToActiveTab();
  2994.  
  2995.  
  2996.     prepareTabBtn();
  2997.  
  2998.  
  2999.     // append the detailed meta contents to the tab-info
  3000.     // ** FOnce.mtf_checkDescriptionLoaded = FP.mtf_checkDescriptionLoaded;
  3001.     // ** if (Q.mutationTarget === null) $callOnceAsync('mtf_checkDescriptionLoaded');
  3002.  
  3003.     // force window scroll when #continuations is first detected and #comments still [hidden]
  3004.     //FOnce.mtf_advancedComments = FP.mtf_advancedComments;
  3005.     //if (Q.mutationTarget === null) $callOnceAsync('mtf_advancedComments');
  3006.  
  3007.     // use video player's element to detect the live-chat situation (no commenting section)
  3008.     // this would be very useful if the live chat is collapsed, i.e. iframe has no indication on the where it is live or replay
  3009.     //FOnce.mtf_forceCheckLiveVideo = FP.mtf_forceCheckLiveVideo;
  3010.     //if (Q.mutationTarget === null) $callOnceAsync('mtf_forceCheckLiveVideo');
  3011.     //mtf_forceCheckLiveVideo();
  3012.  
  3013.  
  3014.     // Attr Mutation Observer - #playlist - hidden
  3015.     //clearMutationObserver(mtoVs, 'mtoVisibility_Playlist')
  3016.     // Attr Mutation Observer callback - #playlist - hidden
  3017.  
  3018.     // pending for #playlist and set Attribute Observer
  3019.     // ** FOnce.mtf_initalAttr_playlist = FP.mtf_initalAttr_playlist
  3020.     // ** if (Q.mutationTarget === null) $callOnceAsync('mtf_initalAttr_playlist');
  3021.  
  3022.     // Attr Mutation Observer - ytd-comments#comments - hidden
  3023.     //clearMutationObserver(mtoVs, 'mtoVisibility_Comments')
  3024.     // Attr Mutation Observer callback - ytd-comments#comments - hidden
  3025.  
  3026.     // pending for #comments and set Attribute Observer
  3027.     // ** FOnce.mtf_initalAttr_comments = FP.mtf_initalAttr_comments;
  3028.     // ** if (Q.mutationTarget === null) $callOnceAsync('mtf_initalAttr_comments');
  3029.  
  3030.  
  3031.     //clearMutationObserver(mtoVs, 'mtoVisibility_Chatroom');
  3032.     //FOnce.mtf_initalAttr_chatroom = FP.mtf_initalAttr_chatroom
  3033.     //if (Q.mutationTarget === null) $callOnceAsync('mtf_initalAttr_chatroom');
  3034.  
  3035.     // clearMutationObserver(mtoVs, 'mtoVisibility_EngagementPanel');
  3036.     // for (const engagement_panel of document.querySelectorAll('ytd-watch-flexy ytd-engagement-panel-section-list-renderer:not([tabview-attr-checked])')) {
  3037.     //   engagement_panel.removeAttribute('tabview-attr-checked');
  3038.     // }
  3039.     //FOnce.mtf_initalAttr_engagement_panel = FP.mtf_initalAttr_engagement_panel
  3040.     //if (Q.mutationTarget === null) $callOnceAsync('mtf_initalAttr_engagement_panel');
  3041.  
  3042.  
  3043.     mtoFlexyAttr.clear(true)
  3044.     mtf_checkFlexy()
  3045.  
  3046.  
  3047.     document.querySelector("#right-tabs .tab-content").addEventListener('scroll', makeBodyScrollByEvt, true);
  3048.  
  3049.  
  3050.     Q.addP = 0;
  3051.     Q.removeP = 0;
  3052.     Q.mutationTarget = null;
  3053.  
  3054.     Q.mtoNav_requestNo = 0;
  3055.  
  3056.  
  3057.     mtoMutation_watchFlexy.bindElement(ytdFlexyElm, {
  3058.       childList: true,
  3059.       subtree: true,
  3060.       attributes: false
  3061.     })
  3062.  
  3063.     // for automcomplete plugin or other userscript plugins
  3064.     // document.body for Firefox >= 60
  3065.     mtoMutation_body.bindElement(document.querySelector('body'), {
  3066.       childList: true,
  3067.       subtree: false,
  3068.       attributes: false
  3069.     })
  3070.  
  3071.  
  3072.     no_fix_contents_until = 0;
  3073.     no_fix_playlist_until = 0;
  3074.     scriptEnable = true;
  3075.     regularCheck(1, 0, null);
  3076.     
  3077.  
  3078.     
  3079.  
  3080.  
  3081.  
  3082.   }
  3083.  
  3084.  
  3085.   function fetchCommentsFinished() {
  3086.     let ytdFlexyElm = kRef(ytdFlexy);
  3087.     if (!scriptEnable || !ytdFlexyElm) return;
  3088.     if(mtf_forceCheckLiveVideo_disable===2) return;
  3089.     akAttr(ytdFlexyElm, 'tabview-youtube-comments', false, 'LS')
  3090.   }
  3091.  
  3092.   function setCommentSection( /** @type {number} */ value) {
  3093.  
  3094.     Q.comments_section_loaded = value;
  3095.  
  3096.     if (value === 0) {
  3097.       sect_lastUpdate = 0;
  3098.       comments_section_loaded_elm = null;
  3099.     }
  3100.  
  3101.   }
  3102.  
  3103.   function resetCommentSection(){
  3104.     
  3105.  
  3106.     let tab_btn = document.querySelector('.tab-btn[userscript-tab-content="#tab-comments"]')
  3107.  
  3108.  
  3109.     if(tab_btn){
  3110.  
  3111.       let span = querySelectorFromAnchor.call(tab_btn,'span#tab3-txt-loader');
  3112.  
  3113.       tab_btn.removeAttribute('loaded-comment')
  3114.       tab_btn.classList.remove('tab-btn-hidden')
  3115.         
  3116.       if(span){
  3117.         span.textContent='';
  3118.       }
  3119.     }
  3120.  
  3121.  
  3122.     setCommentSection(0);
  3123.  
  3124.  
  3125.   }
  3126.  
  3127.   function _disableComments() {
  3128.     
  3129.     //requestingComments = null;
  3130.     mtc_cid && timeline.clearInterval(mtc_cid)
  3131.     mtc_cid=0;
  3132.  
  3133.     if (!scriptEnable) return;
  3134.     let cssElm = kRef(ytdFlexy);
  3135.     if (!cssElm) return;
  3136.  
  3137.     mtoInterval = mtoInterval2;
  3138.  
  3139.     if(Q.comments_section_loaded>0) return; //already displayed / disabled
  3140.  
  3141.     scheduledCommentRefresh=false;
  3142.     setCommentSection(2);
  3143.  
  3144.     comments_section_loaded_elm = mWeakRef(document.querySelector('ytd-comments#comments div#contents') || null)
  3145.  
  3146.     let tabBtn = document.querySelector('.tab-btn[userscript-tab-content="#tab-comments"]');
  3147.     if(tabBtn) {
  3148.       tabBtn.removeAttribute('loaded-comment')
  3149.       if (!tabBtn.classList.contains('tab-btn-hidden')) {
  3150.         hideTabBtn(tabBtn)
  3151.       }
  3152.     }
  3153.  
  3154.     akAttr(cssElm, 'tabview-youtube-comments', true, 'D');
  3155.  
  3156.  
  3157.   }
  3158.  
  3159.  
  3160.  
  3161.  
  3162.   let layoutStatusMutex = new Mutex();
  3163.  
  3164.   function forceDisplayChatReplay() {
  3165.     let items = chatFrameElement('yt-live-chat-item-list-renderer #items');
  3166.     if (items && items.childElementCount !== 0) return;
  3167.  
  3168.     let ytd_player = document.querySelector('ytd-player#ytd-player');
  3169.     if (!ytd_player) return;
  3170.     let videoElm = querySelectorFromAnchor.call(ytd_player,'video');
  3171.     if (!videoElm) return;
  3172.  
  3173.     let video = videoElm;
  3174.     if (videoElm && video.currentTime > 0 && !video.ended && video.readyState > video.HAVE_CURRENT_DATA) {
  3175.       let chat = document.querySelector('ytd-live-chat-frame#chat');
  3176.       if (chat) {
  3177.         nativeFunc(chat, "postToContentWindow", [{ "yt-player-video-progress": videoElm.currentTime }])
  3178.       }
  3179.     }
  3180.  
  3181.   }
  3182.  
  3183.  
  3184.  
  3185.   function runAfterExpandChat() {
  3186.  
  3187.  
  3188.     if(runAfterExpandChat.cid_chatFrameCheck1) timeline.clearInterval(runAfterExpandChat.cid_chatFrameCheck1);
  3189.     if(runAfterExpandChat.cid_chatFrameCheck2) timeline.clearInterval(runAfterExpandChat.cid_chatFrameCheck2);
  3190.     runAfterExpandChat.cid_chatFrameCheck1=0;
  3191.     runAfterExpandChat.cid_chatFrameCheck2=0;
  3192.  
  3193.     new Promise(resolve => {
  3194.  
  3195.       let chatFrame_st = Date.now();
  3196.       runAfterExpandChat.cid_chatFrameCheck1 = 0;
  3197.  
  3198.       let sEF = new ScriptEF();
  3199.       runAfterExpandChat.cid_chatFrameCheck1 = timeline.setInterval(() => {
  3200.         if (!sEF.isValid()) return runAfterExpandChat.cid_chatFrameCheck1 = timeline.clearInterval(runAfterExpandChat.cid_chatFrameCheck1);
  3201.         let cDoc = chatFrameContentDocument();
  3202.         if (cDoc) {
  3203.           runAfterExpandChat.cid_chatFrameCheck1 = timeline.clearInterval(runAfterExpandChat.cid_chatFrameCheck1);
  3204.           resolve();
  3205.         } else if (!scriptEnable || !isChatExpand() || Date.now() - chatFrame_st > 6750) {
  3206.           runAfterExpandChat.cid_chatFrameCheck1 = timeline.clearInterval(runAfterExpandChat.cid_chatFrameCheck1);
  3207.         }
  3208.       }, 60);
  3209.  
  3210.  
  3211.     }).then(() => new Promise(resolve => {
  3212.  
  3213.  
  3214.       let chatFrame_st = Date.now();
  3215.       runAfterExpandChat.cid_chatFrameCheck2 = 0;
  3216.  
  3217.       let sEF = new ScriptEF();
  3218.       runAfterExpandChat.cid_chatFrameCheck2 = timeline.setInterval(() => {
  3219.         if (!sEF.isValid()) return runAfterExpandChat.cid_chatFrameCheck2 = timeline.clearInterval(runAfterExpandChat.cid_chatFrameCheck2);
  3220.         let app = chatFrameElement('yt-live-chat-app');
  3221.         if (app) {
  3222.           runAfterExpandChat.cid_chatFrameCheck2 = timeline.clearInterval(runAfterExpandChat.cid_chatFrameCheck2);
  3223.           resolve(app);
  3224.         } else if (!scriptEnable || !isChatExpand() || Date.now() - chatFrame_st > 6750*3) {
  3225.           runAfterExpandChat.cid_chatFrameCheck2 = timeline.clearInterval(runAfterExpandChat.cid_chatFrameCheck2);
  3226.         }
  3227.       }, 60);
  3228.  
  3229.  
  3230.     })).then(app => {
  3231.  
  3232.  
  3233.       let cDoc = app.ownerDocument;
  3234.  
  3235.       if (!scriptEnable || !isChatExpand()) return;
  3236.       if(cDoc.querySelector('#userscript-tabview-chatroom-css')) return;
  3237.       addStyle(`      
  3238.                 body #input-panel.yt-live-chat-renderer::after {
  3239.                     background: transparent;
  3240.                 }
  3241.                 #items.yt-live-chat-item-list-renderer{
  3242.                     contain: content;
  3243.                 }
  3244.                 yt-live-chat-text-message-renderer{
  3245.                     contain: content;
  3246.                 }
  3247.                 #item-offset.yt-live-chat-item-list-renderer{
  3248.                     contain: content;
  3249.                 }
  3250.                 #item-scroller.yt-live-chat-item-list-renderer{
  3251.                     contain: strict;
  3252.                 }
  3253.                 img[width][height]{
  3254.                     contain: strict;
  3255.                 }
  3256.                 #item-list > yt-live-chat-item-list-renderer, #item-list > yt-live-chat-item-list-renderer > #contents{
  3257.                     contain: strict;
  3258.                 }
  3259.  
  3260.  
  3261.                 #chat.style-scope.yt-live-chat-renderer,
  3262.                 yt-live-chat-text-message-renderer.style-scope.yt-live-chat-item-list-renderer,
  3263.                 #item-scroller,
  3264.                 yt-live-chat-text-message-renderer.style-scope.yt-live-chat-item-list-renderer .style-scope.yt-live-chat-text-message-renderer,
  3265.                 yt-live-chat-ticker-paid-message-item-renderer
  3266.                 {
  3267.                   contain: layout paint style;
  3268.                 }
  3269.                  
  3270.                 yt-img-shadow#author-photo.style-scope{
  3271.                   contain: layout paint style;
  3272.                   content-visibility: auto;
  3273.                   contain-intrinsic-size: 24px 24px;
  3274.                 }
  3275.                  
  3276.                 #item-offset.style-scope.yt-live-chat-item-list-renderer,
  3277.                 #items.style-scope.yt-live-chat-item-list-renderer {
  3278.                   contain: layout paint;
  3279.                 }
  3280.                  
  3281.                 .style-scope.yt-live-chat-text-message-renderer {
  3282.                   cursor: default;
  3283.                 }
  3284.                  
  3285.                 #author-photo.style-scope.yt-live-chat-text-message-renderer,
  3286.                 yt-live-chat-author-chip.style-scope.yt-live-chat-text-message-renderer,
  3287.                 yt-live-chat-author-chip.style-scope.yt-live-chat-text-message-renderer ~ span#message.style-scope.yt-live-chat-text-message-renderer
  3288.                 {
  3289.                   pointer-events: none;
  3290.                 }
  3291.                  
  3292.                 span#message.style-scope.yt-live-chat-text-message-renderer > img.emoji.yt-formatted-string.style-scope.yt-live-chat-text-message-renderer{
  3293.                   contain: layout paint style;
  3294.                   cursor: default;
  3295.                   pointer-events: none;
  3296.                 }
  3297.                  
  3298.                 body yt-live-chat-app{
  3299.                   contain: size layout paint style;
  3300.                   content-visibility: auto;
  3301.                   transform: translate3d(0,0,0);
  3302.                   overflow: hidden;
  3303.                 }
  3304.  
  3305.  
  3306.                 /*
  3307.                 yt-live-chat-text-message-renderer.style-scope.yt-live-chat-item-list-renderer:nth-last-of-type(n+20){
  3308.                   content-visibility: auto;
  3309.                 }
  3310.                 */
  3311.  
  3312.                 /*
  3313.                 @supports (contain-intrinsic-size: auto 1px){
  3314.  
  3315.                   yt-live-chat-text-message-renderer.style-scope.yt-live-chat-item-list-renderer{
  3316.                     content-visibility: auto;
  3317.                     contain-intrinsic-size: auto 24px; 
  3318.                   }
  3319.  
  3320.                 }
  3321.                 */
  3322.                  
  3323.                 .style-scope.yt-live-chat-item-list-renderer{
  3324.                   box-sizing: border-box; 
  3325.                 }
  3326.  
  3327.                 /*
  3328.                 .style-scope.yt-live-chat-item-list-renderer[style*="--tabview-crm-height"]{
  3329.                   content-visibility: auto;
  3330.                   contain-intrinsic-size: 1px var(--tabview-crm-height, 24px); 
  3331.                 }
  3332.  
  3333.                 #item-offset.style-scope.yt-live-chat-item-list-renderer{
  3334.                   height: auto !important;
  3335.                 }
  3336.                 #item-offset.style-scope.yt-live-chat-item-list-renderer > #items:only-child{
  3337.                   position: relative !important;
  3338.                 }*/
  3339.  
  3340.                 #item-offset.style-scope.yt-live-chat-item-list-renderer{
  3341.                   contain: size layout paint style;
  3342.                 }
  3343.                 #item-offset.style-scope.yt-live-chat-item-list-renderer > #items:only-child{
  3344.                   contain: layout paint style;
  3345.                 }
  3346.  
  3347.  
  3348.             `, cDoc.documentElement).id='userscript-tabview-chatroom-css'
  3349.  
  3350.             let frc= 0;
  3351.       let fullReady = ()=>{
  3352.  
  3353.  
  3354.         if(!cDoc.documentElement.hasAttribute('style') && ++frc<900) return timeline.setTimeout(fullReady,10);
  3355.  
  3356.         if (cDoc.querySelector('yt-live-chat-renderer #continuations')) {
  3357.           timeline.setTimeout(() => mtf_ChatExist(), 40);
  3358.           $(document.querySelector('ytd-live-chat-frame#chat')).attr('yt-userscript-iframe-loaded', '')
  3359.         }
  3360.  
  3361.         forceDisplayChatReplay();
  3362.  
  3363.         let iframe = document.querySelector('ytd-live-chat-frame iframe#chatframe');
  3364.  
  3365.  
  3366.         iframe.dispatchEvent(new CustomEvent("tabview-chatroom-ready"))
  3367.  
  3368.  
  3369.  
  3370.       }
  3371.       fullReady();
  3372.  
  3373.  
  3374.  
  3375.     })
  3376.  
  3377.   }
  3378.  
  3379.   function flexyAttr_toggleFlag(mFlag, b, flag) {
  3380.     if (b) mFlag = mFlag | flag;
  3381.     else mFlag = mFlag & ~flag;
  3382.     return mFlag;
  3383.   }
  3384.  
  3385.   function flexAttr_toLayoutStatus(nls, attributeName) {
  3386.  
  3387.     let attrElm, b, v;
  3388.     switch (attributeName) {
  3389.       case 'theater':
  3390.         nls = flexyAttr_toggleFlag(nls, isTheater(), LAYOUT_THEATER);
  3391.         break;
  3392.       case 'userscript-chat-collapsed':
  3393.       case 'userscript-chatblock':
  3394.         attrElm = kRef(ytdFlexy);
  3395.         if (hasAttribute(attrElm, 'userscript-chat-collapsed')) {
  3396.           nls = flexyAttr_toggleFlag(nls, true, LAYOUT_CHATROOM | LAYOUT_CHATROOM_COLLASPED);
  3397.         } else {
  3398.           nls = flexyAttr_toggleFlag(nls, hasAttribute(attrElm, 'userscript-chatblock'), LAYOUT_CHATROOM);
  3399.           nls = flexyAttr_toggleFlag(nls, false, LAYOUT_CHATROOM_COLLASPED);
  3400.         }
  3401.         break;
  3402.       case 'is-two-columns_':
  3403.         nls = flexyAttr_toggleFlag(nls, isWideScreenWithTwoColumns(), LAYOUT_TWO_COLUMNS);
  3404.         break;
  3405.  
  3406.       case 'tabview-selection':
  3407.         b = isNonEmptyString(kRef(ytdFlexy).getAttribute('tabview-selection'));
  3408.         nls = flexyAttr_toggleFlag(nls, b, LAYOUT_TAB_EXPANDED);
  3409.         break;
  3410.  
  3411.       case 'fullscreen':
  3412.         b = isNonEmptyString(kRef(ytdFlexy).getAttribute('fullscreen'));
  3413.         nls = flexyAttr_toggleFlag(nls, b, LAYOUT_FULLSCREEN);
  3414.         break;
  3415.  
  3416.       case 'userscript-engagement-panel':
  3417.         v = kRef(ytdFlexy).getAttribute('userscript-engagement-panel');
  3418.         b = (+v > 0)
  3419.         nls = flexyAttr_toggleFlag(nls, b, LAYOUT_ENGAGEMENT_PANEL_EXPAND);
  3420.         break;
  3421.  
  3422.     }
  3423.  
  3424.     return nls;
  3425.  
  3426.  
  3427.   }
  3428.  
  3429.   let mtf_attrFlexy = (mutations, observer) => {
  3430.  
  3431.     //attr mutation checker - $$ytdFlexyElm$$ {ytd-watch-flexy} \single
  3432.     //::attr    
  3433.     // ~ 'userscript-chat-collapsed', 'userscript-chatblock', 'theater', 'is-two-columns_', 
  3434.     // ~ 'tabview-selection', 'fullscreen', 'userscript-engagement-panel', 
  3435.     // ~ 'hidden'
  3436.  
  3437.     //console.log(15330, scriptEnable, kRef(ytdFlexy), mutations)
  3438.  
  3439.     if (!scriptEnable) return;
  3440.  
  3441.     const cssElm = kRef(ytdFlexy)
  3442.     if (!cssElm) return;
  3443.  
  3444.     if (!mutations) return;
  3445.  
  3446.     //console.log(15340)
  3447.     ytdFlexyHiddenCheck(mutations);
  3448.  
  3449.     const old_layoutStatus = wls.layoutStatus
  3450.     if (old_layoutStatus === null) return;
  3451.     let new_layoutStatus = old_layoutStatus;
  3452.  
  3453.     let checkedChat = false;
  3454.  
  3455.     for (const mutation of mutations) {
  3456.       new_layoutStatus = flexAttr_toLayoutStatus(new_layoutStatus, mutation.attributeName);
  3457.       if (mutation.attributeName == 'userscript-chat-collapsed' || mutation.attributeName == 'userscript-chatblock') {
  3458.  
  3459.         if(!checkedChat){
  3460.           checkedChat = true; // avoid double call
  3461.  
  3462.           if (cssElm.getAttribute('userscript-chatblock') === 'chat-live') {
  3463.             // assigned new attribute - "chat-live" => disable comments section
  3464.             _disableComments();
  3465.           }
  3466.  
  3467.           if (!cssElm.hasAttribute('userscript-chatblock')) {
  3468.             // might or might not collapsed before
  3469.             timeline.setTimeout(() => {
  3470.               if (!scriptEnable) return;
  3471.               //delayed call => check with the "no active focus" condition with chatroom status
  3472.               if (!isAnyActiveTab() && !isChatExpand() && !isTheater() && isWideScreenWithTwoColumns() && !isFullScreen()) {
  3473.                 setToActiveTab();
  3474.               }
  3475.             }, 240);
  3476.           }
  3477.         }
  3478.  
  3479.       }else if(mutation.attributeName == 'userscript-engagement-panel'){
  3480.         // assume any other active component such as tab content and chatroom
  3481.         
  3482.         if (+(cssElm.getAttribute('userscript-engagement-panel')||0)===0 && +mutation.oldValue>0) {
  3483.           timeline.setTimeout(() => {
  3484.             if (!scriptEnable) return;
  3485.             //delayed call => check with the "no active focus" condition with engagement panel status
  3486.             if (!isAnyActiveTab() && !isEngagementPanelExpanded() && !isTheater() && isWideScreenWithTwoColumns() && !isFullScreen() && !isChatExpand()) {
  3487.               setToActiveTab();
  3488.             }
  3489.           }, 240);
  3490.         }
  3491.       }
  3492.     }
  3493.  
  3494.     if (new_layoutStatus !== old_layoutStatus) wls.layoutStatus = new_layoutStatus
  3495.  
  3496.   }
  3497.  
  3498.   const mtf_checkFlexy = () => {
  3499.     // once per $$native-ytd-watch-flexy$$ {ytd-watch-flexy} detection
  3500.  
  3501.     let ytdFlexyElm = kRef(ytdFlexy);
  3502.     if (!scriptEnable || !ytdFlexyElm) return true;
  3503.  
  3504.  
  3505.     wls.layoutStatus = null;
  3506.  
  3507.     let isFlexyHidden = (deferredVarYTDHidden = ytdFlexyElm.hasAttribute('hidden'));
  3508.  
  3509.     if (!isFlexyHidden) {
  3510.       let rChatExist = base_ChatExist();
  3511.       if (rChatExist) {
  3512.         let { attr_chatblock, attr_chatcollapsed } = rChatExist;
  3513.         if (attr_chatblock === null) {
  3514.           //remove attribute if it is unknown
  3515.           attr_chatblock = false;
  3516.           attr_chatcollapsed = false;
  3517.         }
  3518.         wAttr(ytdFlexyElm, 'userscript-chatblock', attr_chatblock)
  3519.         wAttr(ytdFlexyElm, 'userscript-chat-collapsed', attr_chatcollapsed)
  3520.       }
  3521.     }
  3522.  
  3523.     let rTabSelection = [...querySelectorAllFromAnchor.call(ytdFlexyElm,'.tab-btn[userscript-tab-content]')]
  3524.       .map(elm => ({ elm, hidden: elm.classList.contains('tab-btn-hidden') }));
  3525.  
  3526.     if(rTabSelection.length === 0){
  3527.       wAttr(ytdFlexyElm, 'tabview-selection', false);
  3528.     }else{
  3529.       rTabSelection=rTabSelection.filter(entry => entry.hidden !== true); // all available tabs
  3530.       if (rTabSelection.length === 0) wAttr(ytdFlexyElm, 'tabview-selection', '');
  3531.     }
  3532.     rTabSelection = null;
  3533.       
  3534.     let rEP = engagement_panels_();
  3535.     if (rEP && rEP.count > 0) wAttr(ytdFlexyElm, 'userscript-engagement-panel', false);
  3536.     //else wAttr(ytdFlexyElm, 'userscript-engagement-panel', rEP.value + ""); // can be 0
  3537.     else if(rEP.value>0) wAttr(ytdFlexyElm, 'userscript-engagement-panel', rEP.value + ""); // can be 0
  3538.  
  3539.     let ls = 0;
  3540.     ls = flexAttr_toLayoutStatus(ls, 'theater')
  3541.     ls = flexAttr_toLayoutStatus(ls, 'userscript-chat-collapsed')
  3542.     ls = flexAttr_toLayoutStatus(ls, 'userscript-chatblock')
  3543.     ls = flexAttr_toLayoutStatus(ls, 'is-two-columns_')
  3544.     ls = flexAttr_toLayoutStatus(ls, 'tabview-selection')
  3545.     ls = flexAttr_toLayoutStatus(ls, 'fullscreen')
  3546.     ls = flexAttr_toLayoutStatus(ls, 'userscript-engagement-panel')
  3547.  
  3548.     wls.layoutStatus = ls
  3549.  
  3550.     mtoFlexyAttr.bindElement(ytdFlexyElm,{
  3551.       attributes: true,
  3552.       attributeFilter: ['userscript-chat-collapsed', 'userscript-chatblock', 'theater', 'is-two-columns_', 'tabview-selection', 'fullscreen', 'userscript-engagement-panel', 'hidden'],
  3553.       attributeOldValue: true
  3554.     })
  3555.  
  3556.     ytdFlexyHiddenCheckBasic(ytdFlexyElm);
  3557.  
  3558.  
  3559.     let columns = document.querySelector('ytd-page-manager#page-manager #columns')
  3560.     if (columns) {
  3561.       wAttr(columns, 'userscript-scrollbar-render', true);
  3562.     }
  3563.  
  3564.     return false;
  3565.   }
  3566.   
  3567.  
  3568.   function ytdFlexyHiddenCheckBasic(ytdFlexyElm){
  3569.     // for both hidden and non-hidden ytd-watch-flexy
  3570.  
  3571.     deferredVarYTDHidden = ytdFlexyElm.hasAttribute('hidden');
  3572.  
  3573.    // console.log(15403)
  3574.     document.documentElement.classList.toggle('tabview-normal-player',!deferredVarYTDHidden)
  3575.  
  3576.   }
  3577.  
  3578.   function checkVisibleEngagementPanel(){
  3579.     
  3580.     if(storeLastPanel){
  3581.  
  3582.       let elm_storeLastPanel = kRef(storeLastPanel);
  3583.  
  3584.       if(elm_storeLastPanel && !isDOMVisible(elm_storeLastPanel) ){
  3585.         storeLastPanel=null;
  3586.         ytBtnCloseEngagementPanels();
  3587.       }
  3588.  
  3589.     }
  3590.  
  3591.   }
  3592.  
  3593.   function ytdFlexyHiddenCheck(mutations) {
  3594.  
  3595.     //console.log(15350)
  3596.  
  3597.     const ytdFlexyElm = kRef(ytdFlexy)
  3598.     if (!ytdFlexyElm) return;
  3599.     let muHidden = false
  3600.  
  3601.     for (const mutation of mutations) {
  3602.       if (mutation.attributeName === 'hidden') {
  3603.         //console.log(343)
  3604.         muHidden = true;
  3605.         break;
  3606.       }
  3607.     }
  3608.  
  3609.     if (!muHidden) return;
  3610.     
  3611.  
  3612.     
  3613.     mtc_store= Date.now()+2870
  3614.     //console.log(7004)
  3615.     deferredVarYTDHidden = ytdFlexyElm.hasAttribute('hidden');
  3616.  
  3617.     
  3618.     if(deferredVarYTDHidden && scheduledCommentRefresh && Q.comments_section_loaded>0){
  3619.       scheduledCommentRefresh=false;
  3620.     } 
  3621.  
  3622.     //console.log(15400)
  3623.     if(!deferredVarYTDHidden){
  3624.       mtf_forceCheckLiveVideo_disable = 0  
  3625.       timeline.setTimeout(function() {
  3626.         mtf_ChatExist();  
  3627.         layoutStatusMutex.lockWith(unlock=>{
  3628.           atChange(); // in case no mutation occurance
  3629.           ytdFlexyHiddenCheckBasic(ytdFlexyElm);
  3630.           dispatchWindowResize(); // player control positioning
  3631.           timeline.setTimeout(unlock, 40);          
  3632.         })        
  3633.       }, 40);
  3634.     }else{
  3635.       //console.log(15401)
  3636.       timeline.setTimeout(function() {
  3637.         //console.log(15402)
  3638.         ytdFlexyHiddenCheckBasic(ytdFlexyElm);
  3639.       }, 40);
  3640.     }
  3641.  
  3642.   }
  3643.  
  3644.  
  3645.  
  3646.  
  3647.   let switchTabActivity_lastTab = null
  3648.  
  3649.   function setDisplayedPlaylist() {
  3650.     //override the default youtube coding event prevention
  3651.     let cssElm = kRef(ytdFlexy);
  3652.     if (!scriptEnable || !cssElm) return;
  3653.     displayedPlaylist = mWeakRef(document.querySelector('ytd-watch-flexy #tab-list:not(.tab-content-hidden) ytd-playlist-panel-renderer') || null);
  3654.   }
  3655.  
  3656.  
  3657.   
  3658.   let recordScrollTop = 0
  3659.  
  3660.   function switchTabActivity(activeLink) {
  3661.     if (!scriptEnable) return;
  3662.  
  3663.     const ytdFlexyElm = kRef(ytdFlexy);
  3664.  
  3665.     if (!ytdFlexyElm) return;
  3666.  
  3667.     if (activeLink && activeLink.classList.contains('tab-btn-hidden')) return; // not allow to switch to hide tab
  3668.  
  3669.     if (isTheater() && isWideScreenWithTwoColumns()) activeLink = null;
  3670.  
  3671.     /*
  3672.     let isPrevTabComments = document.querySelector('.tab-content-cld:not(.tab-content-hidden)');
  3673.     isPrevTabComments=isPrevTabComments&&isPrevTabComments.matches('#tab-comments')
  3674.  
  3675.     if(isPrevTabComments){
  3676.     
  3677.       let comments_tab = document.querySelector('#tab-comments');
  3678.       if(comments_tab){
  3679.         let st = comments_tab.scrollTop;
  3680.         if(st>=0) recordScrollTop = st;
  3681.       }
  3682.  
  3683.  
  3684.     }
  3685.     */
  3686.  
  3687.     function runAtEnd() {
  3688.  
  3689.       
  3690.     //console.log(12312)
  3691.  
  3692.       if (activeLink) lastShowTab = activeLink.getAttribute('userscript-tab-content')
  3693.  
  3694.       displayedPlaylist = null;
  3695.       scrollingVideosList = null;
  3696.  
  3697.       if (activeLink && lastShowTab == '#tab-list') {
  3698.         setDisplayedPlaylist();
  3699.       } else if (activeLink && lastShowTab == '#tab-videos') {
  3700.         scrollingVideosList = mWeakRef(document.querySelector('ytd-watch-flexy #tab-videos:not(.tab-content-hidden) [placeholder-videos]'));
  3701.       }
  3702.  
  3703.  
  3704.       ytdFlexyElm.setAttribute('tabview-selection', activeLink ? lastShowTab : '')
  3705.  
  3706.       if (lastShowTab == '#tab-comments' && (ytdFlexyElm.getAttribute('tabview-youtube-comments') || '').lastIndexOf('S') >= 0) {
  3707.  
  3708.         
  3709.         if(mtf_forceCheckLiveVideo_disable===2) {}
  3710.         else{
  3711.           akAttr(ytdFlexyElm, 'tabview-youtube-comments', false, 'L');
  3712.  
  3713.           /*
  3714.           requestAnimationFrame(() => {
  3715.             let comments_tab = document.querySelector('#tab-comments');
  3716.             if (comments_tab && comments_tab.scrollTop > 0) comments_tab.scrollTop = 0;
  3717.           });
  3718.           */
  3719.         }
  3720.  
  3721.       }
  3722.  
  3723.       /*
  3724.     let isNewTabComments = document.querySelector('.tab-content-cld:not(.tab-content-hidden)')
  3725.     
  3726.     isNewTabComments=isNewTabComments&&isNewTabComments.matches('#tab-comments')
  3727.  
  3728.     if(isNewTabComments){
  3729.       
  3730.       let comments_tab = document.querySelector('#tab-comments');
  3731.       if(comments_tab){
  3732.         let st = comments_tab.scrollTop;
  3733.         if(Math.abs(st-recordScrollTop)>0.9) comments_tab.scrollTop=recordScrollTop;
  3734.       }
  3735.  
  3736.       
  3737.       
  3738.     }
  3739.     */
  3740.  
  3741.  
  3742.     }
  3743.  
  3744.     const links = document.querySelectorAll('#material-tabs a[userscript-tab-content]');
  3745.  
  3746.  
  3747.  
  3748.     for (const link of links) {
  3749.       let content = document.querySelector(link.getAttribute('userscript-tab-content'));
  3750.       if (link && content) {
  3751.         if (link !== activeLink) {
  3752.           link.classList.remove("active");
  3753.           content.classList.add("tab-content-hidden");
  3754.         } else {
  3755.           link.classList.add("active");
  3756.           content.classList.remove("tab-content-hidden");
  3757.           //timeline.setTimeout(()=>content.focus(),400);
  3758.  
  3759.         }
  3760.       }
  3761.     }
  3762.  
  3763.     runAtEnd();
  3764.  
  3765.  
  3766.   }
  3767.  
  3768.  
  3769.   const STORE_VERSION = 1;
  3770.   const STORE_key = 'userscript-tabview-settings';
  3771.   function getStore(){
  3772.     let s = localStorage[STORE_key];
  3773.     function resetStore(){
  3774.       let ret = {
  3775.         version: 1,
  3776.       };
  3777.       localStorage[STORE_key]=JSON.stringify(ret);
  3778.       return ret;
  3779.     }
  3780.     if(!s) return resetStore();
  3781.     let obj = null;
  3782.     try{
  3783.       obj = JSON.parse(s);
  3784.     }catch(e){}
  3785.     return obj && obj.version === STORE_VERSION ? obj : resetStore();
  3786.   }
  3787.  
  3788.   function setStore(obj){
  3789.     if(!obj || typeof obj !=='object') return false;
  3790.     if(obj.version !== STORE_VERSION) return false;
  3791.     localStorage[STORE_key]=JSON.stringify(obj);
  3792.     return true;
  3793.   }
  3794.  
  3795.   let tabsUiScript_setclick = false;
  3796.  
  3797.   function prepareTabBtn() {
  3798.  
  3799.     const materialTab = document.querySelector("#material-tabs")
  3800.     if (!materialTab) return;
  3801.  
  3802.     let noActiveTab = !!document.querySelector('ytd-watch-flexy[userscript-chatblock]:not([userscript-chat-collapsed])')
  3803.  
  3804.     const activeLink = querySelectorFromAnchor.call(materialTab,'a[userscript-tab-content].active:not(.tab-btn-hidden)')
  3805.     if (activeLink) switchTabActivity(noActiveTab ? null : activeLink)
  3806.  
  3807.     if (!tabsUiScript_setclick) {
  3808.       tabsUiScript_setclick = true;
  3809.       $(materialTab).on("click", "a", function(evt) {
  3810.  
  3811.         //console.log(8510)
  3812.         let ytdFlexyElm = kRef(ytdFlexy);
  3813.         if (!scriptEnable || !ytdFlexyElm) return null;
  3814.  
  3815.         if (!this.hasAttribute('userscript-tab-content')) return;
  3816.  
  3817.         if (evt.target.matches('.font-size-btn')) return;
  3818.  
  3819.  
  3820.         evt.preventDefault();
  3821.  
  3822.         //console.log(8511)
  3823.  
  3824. /*
  3825.         if (this.getAttribute('userscript-tab-content') == '#tab-comments' && parseInt(ytdFlexyElm.getAttribute('tabview-youtube-comments') || '') < 0) {
  3826.           
  3827.         console.log(8512)
  3828.           return;
  3829.         }*/
  3830.  
  3831.         //console.log(8513)
  3832.         new Promise(requestAnimationFrame).then(() => {
  3833.  
  3834.  
  3835.           //console.log(8514)
  3836.           layoutStatusMutex.lockWith(unlock => {
  3837.  
  3838.             //console.log(8515)
  3839.             switchTabActivity_lastTab = this.getAttribute('userscript-tab-content');
  3840.  
  3841.             let isActiveAndVisible = this.classList.contains('tab-btn') && this.classList.contains('active') && !this.classList.contains('tab-btn-hidden')
  3842.  
  3843.             if (isWideScreenWithTwoColumns() && !isTheater() && isActiveAndVisible) {
  3844.               //optional
  3845.               timeline.setTimeout(unlock, 80);
  3846.               switchTabActivity(null);
  3847.               ytBtnSetTheater();
  3848.             } else if (isActiveAndVisible) {
  3849.               timeline.setTimeout(unlock, 80);
  3850.               switchTabActivity(null);
  3851.             } else {
  3852.               let pInterval = 60;
  3853.               if (isChatExpand() && isWideScreenWithTwoColumns()) {
  3854.                 ytBtnCollapseChat();
  3855.               } else if (isEngagementPanelExpanded() && isWideScreenWithTwoColumns()) {
  3856.                 ytBtnCloseEngagementPanels();
  3857.               } else if (isWideScreenWithTwoColumns() && isTheater() && !isFullScreen()) {
  3858.                 ytBtnCancelTheater();
  3859.               } else {
  3860.                 pInterval = 20;
  3861.               }
  3862.               //console.log(8518)
  3863.               timeline.setTimeout(() => {
  3864.                 timeline.setTimeout(makeBodyScroll, 20); // this is to make the image render
  3865.  
  3866.                 timeline.setTimeout(() => {
  3867.                   let rightTabs = document.querySelector('#right-tabs');
  3868.                   if (!isWideScreenWithTwoColumns() && rightTabs && rightTabs.offsetTop > 0 && this.classList.contains('active')) {
  3869.                     let tabButtonBar = document.querySelector('#material-tabs');
  3870.                     let tabButtonBarHeight = tabButtonBar ? tabButtonBar.offsetHeight : 0;
  3871.                     window.scrollTo(0, rightTabs.offsetTop - tabButtonBarHeight);
  3872.                   }
  3873.                 }, 60)
  3874.                // console.log(8519)
  3875.  
  3876.                 timeline.setTimeout(unlock, 80)
  3877.                 switchTabActivity(this)
  3878.  
  3879.               }, pInterval);
  3880.             }
  3881.  
  3882.  
  3883.           })
  3884.  
  3885.         })
  3886.  
  3887.  
  3888.  
  3889.  
  3890.       });
  3891.       /*
  3892.  
  3893.       $(materialTab).on("mousedown", ".font-size-btn", function(evt){
  3894.  
  3895.         evt.stopPropagation();
  3896.         evt.stopImmediatePropagation();
  3897.  
  3898.       });
  3899.  
  3900.       $(materialTab).on("pointerdown", ".font-size-btn", function(evt){
  3901.  
  3902.         evt.stopPropagation();
  3903.         evt.stopImmediatePropagation();
  3904.  
  3905.       });
  3906.       
  3907.       $(materialTab).on("mouseup", ".font-size-btn", function(evt){
  3908.  
  3909.         evt.stopPropagation();
  3910.         evt.stopImmediatePropagation();
  3911.  
  3912.       });
  3913.  
  3914.       $(materialTab).on("pointerup", ".font-size-btn", function(evt){
  3915.  
  3916.         evt.stopPropagation();
  3917.         evt.stopImmediatePropagation();
  3918.  
  3919.       });
  3920.       */
  3921.  
  3922.       function updateCSS_fontsize(){
  3923.  
  3924.         let store = getStore();
  3925.         
  3926.         let ytdFlexyElm = kRef(ytdFlexy);
  3927.         if(ytdFlexyElm){
  3928.           if(store['font-size-#tab-info'])
  3929.           ytdFlexyElm.style.setProperty('--ut2257-info', store['font-size-#tab-info'])
  3930.           if(store['font-size-#tab-comments'])
  3931.           ytdFlexyElm.style.setProperty('--ut2257-comments', store['font-size-#tab-comments'])
  3932.           if(store['font-size-#tab-videos'])
  3933.           ytdFlexyElm.style.setProperty('--ut2257-videos', store['font-size-#tab-videos'])
  3934.           if(store['font-size-#tab-list'])
  3935.           ytdFlexyElm.style.setProperty('--ut2257-list', store['font-size-#tab-list'])
  3936.         }
  3937.  
  3938.       }
  3939.  
  3940.       $(materialTab).on("click", ".font-size-btn", function(evt){
  3941.  
  3942.         evt.preventDefault();
  3943.         evt.stopPropagation();
  3944.         evt.stopImmediatePropagation();
  3945.  
  3946.         let value = evt.target.matches('.font-size-plus')?1: evt.target.matches('.font-size-minus')?-1 :0;
  3947.  
  3948.         let active_tab_content = closestDOM.call(evt.target,'[userscript-tab-content]').getAttribute('userscript-tab-content'); 
  3949.  
  3950.         let store = getStore();
  3951.         let settingKey = `font-size-${active_tab_content}`
  3952.         if(!store[settingKey]) store[settingKey] = 1.0;
  3953.         if(value<0) store[settingKey] -= 0.05;
  3954.         else if(value>0) store[settingKey] += 0.05;
  3955.         if(store[settingKey]<0.1) store[settingKey] = 0.1;
  3956.         else if(store[settingKey]>10) store[settingKey] = 10.0;
  3957.         setStore(store);
  3958.  
  3959.  
  3960.         updateCSS_fontsize();
  3961.  
  3962.  
  3963.         //console.log(this.textContent)
  3964.  
  3965.  
  3966.       });
  3967.  
  3968.       updateCSS_fontsize();
  3969.  
  3970.  
  3971.  
  3972.     }
  3973.  
  3974.   }
  3975.  
  3976.  
  3977.   // ---------------------------------------------------------------------------------------------
  3978.   document.addEventListener("yt-navigate-finish", onNavigationEnd)
  3979.   //yt-navigate-redirect
  3980.   //"yt-page-data-fetched"
  3981.   //yt-navigate-error
  3982.   //yt-navigate-start
  3983.   //yt-page-manager-navigate-start
  3984.   //"yt-navigate"
  3985.   //"yt-navigate-cache
  3986.  
  3987.   document.addEventListener("yt-navigate-cache",()=>{
  3988.     console.log('yt-navigate-cache')
  3989.   })
  3990.   document.addEventListener("yt-navigate-redirect",()=>{
  3991.     console.log('yt-navigate-redirect')
  3992.   })
  3993.  
  3994.   function onReady(){
  3995.     //might be earlier than yt-navigation-finish
  3996.     console.log('html-onReady')
  3997.     if(location.pathname=='/watch') script_inject_js1.inject();
  3998.   }
  3999.  
  4000.   if(document.readyState!=='loading'){
  4001.     onReady();
  4002.   }else{
  4003.     document.addEventListener('DOMContentLoaded', onReady)
  4004.   }
  4005.  
  4006.   function forceConfig(){
  4007.     
  4008.     let trial = false;
  4009.     
  4010. /*
  4011.     let f=()=>{
  4012.       if(trial) return;
  4013.       let b = true;
  4014.       try{
  4015.         document.dispatchEvent(new CustomEvent("me-func"))
  4016.         window.yt.config_.EXPERIMENT_FLAGS.kevlar_watch_metadata_refresh=true
  4017.       }catch(e){
  4018.         b=false;
  4019.       }
  4020.       if(b) trial = true;
  4021.     }
  4022.     f();
  4023.     requestAnimationFrame(f)
  4024.     setTimeout(f,30)
  4025.     setTimeout(f,300)
  4026. */
  4027.     
  4028.     
  4029.   }
  4030.  
  4031.   document.addEventListener("yt-navigate-start",()=>{
  4032.     console.log('yt-navigate-start') // not always trigger before navigate-end
  4033.     
  4034.     no_fix_contents_until = 0;
  4035.     no_fix_playlist_until = 0;
  4036.  
  4037.     script_inject_js1.inject();
  4038.     forceConfig();
  4039.   })
  4040.  
  4041.   document.addEventListener("yt-page-manager-navigate-start",()=>{
  4042.     console.log('yt-page-manager-navigate-start')
  4043.     forceConfig();
  4044.   })
  4045.  
  4046.  
  4047.   document.addEventListener("loadstart", (evt) => {
  4048.     if (!evt || !evt.target || evt.target.nodeName !== "VIDEO") return;
  4049.     let elm = evt.target;
  4050.     if (!elm.matches('#player video, #movie_player video, video[tabview-mainvideo]')) return;
  4051.  
  4052.     
  4053.     mtc_store= Date.now()+2870
  4054.  
  4055.     let src = elm.src;
  4056.     if (src !== lastVideoURL) {
  4057.       lastVideoURL = elm.src;
  4058.       elm.setAttribute('tabview-mainvideo', ''); // mainly for mini playing
  4059.       
  4060.       no_fix_contents_until = 0;
  4061.       no_fix_playlist_until = 0;
  4062.       regularCheck(1,0,null); // mutation happens when the page is not ready; call again as the page is ready.
  4063.  
  4064.     }
  4065.  
  4066.   }, true)
  4067.  
  4068.   // ---------------------------------------------------------------------------------------------
  4069.  
  4070.   let scrolling_lastD = 0;
  4071.  
  4072.   const singleColumnScrolling = function(/** @type {boolean} */  scrolling_lastF) {
  4073.     
  4074.     if (!scriptEnable || deferredVarYTDHidden) return;
  4075.  
  4076.     let pageY = scrollY;
  4077.     if (pageY < 10 && scrolling_lastD === 0 && !scrolling_lastF) return;
  4078.  
  4079.     let targetElm, header, navElm;
  4080.  
  4081.     Promise.resolve().then(() => {
  4082.  
  4083.       targetElm = document.querySelector("#right-tabs");
  4084.       if (!targetElm) return;
  4085.       header = querySelectorFromAnchor.call(targetElm,"header");
  4086.       if (!header) return;
  4087.       navElm = document.querySelector('#masthead-container, #masthead')
  4088.       if (!navElm) return;
  4089.       let navHeight = navElm ? navElm.offsetHeight : 0
  4090.  
  4091.       let elmY = targetElm.offsetTop
  4092.  
  4093.       let xyz = [elmY + navHeight, pageY, elmY - navHeight]
  4094.  
  4095.       let xyStatus = 0
  4096.       if (xyz[1] < xyz[2] && xyz[2] < xyz[0]) {
  4097.         // 1
  4098.         xyStatus = 1
  4099.       }
  4100.  
  4101.       if (xyz[0] > xyz[1] && xyz[1] > xyz[2]) {
  4102.  
  4103.         //2
  4104.         xyStatus = 2
  4105.  
  4106.       }
  4107.  
  4108.       if (xyz[2] < xyz[0] && xyz[0] < xyz[1]) {
  4109.         // 3
  4110.  
  4111.         xyStatus = 3
  4112.  
  4113.  
  4114.       }
  4115.  
  4116.       return xyStatus;
  4117.  
  4118.     }).then((xyStatus) => {
  4119.  
  4120.       if ((xyStatus == 2 || xyStatus == 3) && (scrolling_lastD === 0 || scrolling_lastF)) {
  4121.         scrolling_lastD = 1;
  4122.         let {
  4123.           offsetHeight
  4124.         } = header
  4125.         let {
  4126.           offsetWidth
  4127.         } = targetElm
  4128.  
  4129.         targetElm.style.setProperty("--userscript-sticky-width", offsetWidth + 'px')
  4130.         targetElm.style.setProperty("--userscript-sticky", offsetHeight + 'px')
  4131.  
  4132.         wAttr(targetElm, 'userscript-sticky', true);
  4133.  
  4134.       } else if ((xyStatus == 1) && (scrolling_lastD === 1 || scrolling_lastF)) {
  4135.         scrolling_lastD = 0;
  4136.  
  4137.         wAttr(targetElm, 'userscript-sticky', false);
  4138.       }
  4139.  
  4140.  
  4141.       targetElm = null;
  4142.       header = null;
  4143.       navElm = null;
  4144.  
  4145.     });
  4146.  
  4147.   };
  4148.  
  4149.   window.addEventListener("scroll", function() {
  4150.     singleColumnScrolling(false)
  4151.   }, {
  4152.     capture: false,
  4153.     passive: true
  4154.   })
  4155.  
  4156.   let lastResizeAt = 0;
  4157.   window.addEventListener('resize', function() {
  4158.  
  4159.     if (!scriptEnable) return;
  4160.     if (deferredVarYTDHidden) return;
  4161.     lastResizeAt = Date.now();
  4162.  
  4163.     requestAnimationFrame(() => {
  4164.       singleColumnScrolling(true)
  4165.     })
  4166.  
  4167.   }, {
  4168.     capture: false,
  4169.     passive: true
  4170.   })
  4171.  
  4172.  
  4173.  
  4174.   
  4175.   let hist = null
  4176.   const getHistState = (history)=>`${history.length}|${history.state?history.state.entryTime:null}`;
  4177.   function newVideoPageCheck(){
  4178.     let hState = getHistState(history)
  4179.     if(hist!==hState) {
  4180.       hist=hState;
  4181.       if(scriptEnable){
  4182.         //scriptEnable = false;
  4183.         let callTimeout = !newVideoPage.entryTime
  4184.         newVideoPage.entryTime = 1
  4185.         if(callTimeout) setTimeout(newVideoPage,0)
  4186.         
  4187.       }
  4188.       return true;
  4189.     }
  4190.   }
  4191.   function newVideoPage(){
  4192.     newVideoPage.entryTime = 0;
  4193.  
  4194.     console.log('newVideoPage')
  4195.     
  4196.     
  4197.     //console.log('newVideoPage-', 150, location.href)
  4198.  
  4199.     let ytdFlexyElm = kRef(ytdFlexy);
  4200.     if(!ytdFlexyElm) return;
  4201.  
  4202.     timeline.reset();
  4203.     layoutStatusMutex = new Mutex();
  4204.  
  4205.     //console.log('newVideoPage-', 350, location.href)
  4206.     
  4207.     let flag1= /^https?\:\/\/(\w+\.)*youtube\.com\/watch\?(\w+\=[^\/\?\&]+\&|\w+\=?\&)*v=[\w\-\_]+/.test(location.href)
  4208.     let tf = ()=>{
  4209.  
  4210.       let isFlexyHidden = (deferredVarYTDHidden = ytdFlexyElm.hasAttribute('hidden'));
  4211.  
  4212.       let flag2 = !isFlexyHidden;
  4213.  
  4214.       if(flag1^flag2) return timeline.setTimeout(tf,7); else funcVisibleWatch();
  4215.  
  4216.       tf= null;
  4217.       funcVisibleWatch = null;
  4218.       ytdFlexyElm=null
  4219.  
  4220.     }
  4221.  
  4222.     let funcVisibleWatch = ()=>{
  4223.       
  4224.       //scriptEnable = true;
  4225.  
  4226.       let isFlexyHidden = (deferredVarYTDHidden = ytdFlexyElm.hasAttribute('hidden'));
  4227.       ytdFlexyHiddenCheckBasic(ytdFlexyElm)
  4228.  
  4229.       if(!isFlexyHidden) {
  4230.  
  4231.         mtf_forceCheckLiveVideo_disable = 0;
  4232.         mtc_store= Date.now()+2870
  4233.  
  4234.         sect_lastUpdate = 0;
  4235.         if(pendingOne){
  4236.           // reset pendingOne = false if the element is already removed.
  4237.           pendingOne = document.querySelectorAll(`ytd-watch-flexy ytd-comments#comments [tabview-cache-time]`).length>1;
  4238.         }
  4239.  
  4240.         timeline.setTimeout(()=>{
  4241.           Q.mutationTarget=null;
  4242.           FP.mtf_attrComments()
  4243.         },2870)
  4244.     
  4245.         if(pageInit_attrComments) hookSection();
  4246.  
  4247.  
  4248.  
  4249.  
  4250.  
  4251.         
  4252.         let new_layoutStatus = wls.layoutStatus 
  4253.  
  4254.         const new_isExpandedChat = !(new_layoutStatus & LAYOUT_CHATROOM_COLLASPED) && (new_layoutStatus & LAYOUT_CHATROOM)
  4255.         const new_isCollaspedChat = (new_layoutStatus & LAYOUT_CHATROOM_COLLASPED) && (new_layoutStatus & LAYOUT_CHATROOM)
  4256.     
  4257.         const new_isTwoColumns = new_layoutStatus & LAYOUT_TWO_COLUMNS;
  4258.         const new_isTheater = new_layoutStatus & LAYOUT_THEATER;
  4259.         const new_isTabExpanded = new_layoutStatus & LAYOUT_TAB_EXPANDED;
  4260.         const new_isFullScreen = new_layoutStatus & LAYOUT_FULLSCREEN;
  4261.         const new_isExpandEPanel = new_layoutStatus & LAYOUT_ENGAGEMENT_PANEL_EXPAND;
  4262.  
  4263.         if( ytdFlexyElm.getAttribute('tabview-selection')==='' && new_isTwoColumns && !new_isTheater && !new_isTabExpanded && !new_isFullScreen && !new_isExpandEPanel && !new_isExpandedChat ){
  4264.           // e.g. engage panel removed after miniview and change video
  4265.           setToActiveTab();
  4266.         }else if(new_isExpandEPanel && querySelectorAllFromAnchor.call(ytdFlexyElm,'ytd-engagement-panel-section-list-renderer[visibility="ENGAGEMENT_PANEL_VISIBILITY_EXPANDED"]').length===0){
  4267.           wls.layoutStatus = new_layoutStatus & (~LAYOUT_ENGAGEMENT_PANEL_EXPAND)
  4268.         }
  4269.  
  4270.         //mtf_attrFlexy();
  4271.  
  4272.         FP.mtf_attrEngagementPanel();
  4273.       
  4274.         FP.mtf_attrPlaylist();
  4275.       
  4276.         FP.mtf_attrComments();   
  4277.       
  4278.         FP.mtf_attrChatroom();
  4279.  
  4280.  
  4281.       }
  4282.  
  4283.       no_fix_contents_until = 0;
  4284.       no_fix_playlist_until = 0;
  4285.       scriptEnable = true;
  4286.       regularCheck(1,0,null); // mutation happens when the page is not ready; call again as the page is ready.
  4287.  
  4288.  
  4289.  
  4290.       
  4291.  
  4292.     }
  4293.     
  4294.  
  4295.     
  4296.     tf();
  4297.     
  4298.  
  4299.  
  4300.   }
  4301.  
  4302.  
  4303.  
  4304.   function browserHistoryState(){
  4305.     let maxCount = 5
  4306.  
  4307.     if (!scriptEnable) return;
  4308.     
  4309.     let ytdFlexyElm = kRef(ytdFlexy);
  4310.     if(!ytdFlexyElm) return;
  4311.  
  4312.     let cid = timeline.setInterval(function(){
  4313.       if(newVideoPageCheck()){
  4314.         timeline.clearInterval(cid);
  4315.       }
  4316.       if(--maxCount===0) timeline.clearInterval(cid);
  4317.     },7)
  4318.  
  4319.   }
  4320.  
  4321.  
  4322.   window.addEventListener('hashchange', function() {
  4323.     if (!scriptEnable) return;
  4324.     console.log('hashchange');
  4325.     browserHistoryState();
  4326.   }, { capture: true })
  4327.  
  4328.   window.addEventListener('popstate', function() {
  4329.     if (!scriptEnable) return;
  4330.     console.log('popstate');
  4331.     browserHistoryState();
  4332.   }, { capture: true })
  4333.  
  4334.  
  4335.   // function clearMutationObserver(o, key) {
  4336.   //   if (o[key]) {
  4337.   //     o[key].takeRecords();
  4338.   //     o[key].disconnect();
  4339.   //     o[key] = null;
  4340.   //     return true;
  4341.   //   }
  4342.   // }
  4343.  
  4344.   // function initMutationObserver(o, key, callback) {
  4345.   //   clearMutationObserver(o, key);
  4346.   //   const mto = new MutationObserver(callback);
  4347.   //   o[key] = mto;
  4348.   //   return mto;
  4349.   // }
  4350.   // function initMutationObserver2(o, key, mtoFunc) {
  4351.   //   clearMutationObserver(o, key);
  4352.   //   const mto = mtoFunc();
  4353.   //   o[key] = mto;
  4354.   //   return mto;
  4355.   // }
  4356.  
  4357.   document.addEventListener('wheel', function(evt) {
  4358.  
  4359.     if (!scriptEnable) return;
  4360.     const displayedPlaylist_element = kRef(displayedPlaylist);
  4361.     if (displayedPlaylist_element && displayedPlaylist_element.contains(evt.target)) {
  4362.       evt.stopPropagation();
  4363.       evt.stopImmediatePropagation();
  4364.     }
  4365.   }, { capture: true, passive: true });
  4366.  
  4367.  
  4368.   function setVideosTwoColumns(/** @type {number} */ flag, /** @type {boolean} */ bool) {
  4369.  
  4370.     //two columns to one column
  4371.  
  4372.     /*
  4373.         [placeholder-videos] ytd-watch-next-secondary-results-renderer.style-scope.ytd-watch-flexy
  4374.  
  4375.         is-two-columns =""  => no is-two-columns
  4376.         
  4377.         
  4378.         
  4379.         [placeholder-videos] tp-yt-paper-spinner#spinner.style-scope.ytd-continuation-item-renderer
  4380.         
  4381.         no hidden => hidden =""
  4382.         
  4383.         
  4384.         [placeholder-videos] div#button.style-scope.ytd-continuation-item-renderer
  4385.         
  4386.         
  4387.         hidden ="" => no hidden
  4388.         
  4389.  
  4390.         */
  4391.  
  4392.     let cssSelector1 = '[placeholder-videos] ytd-watch-next-secondary-results-renderer.style-scope.ytd-watch-flexy'
  4393.  
  4394.     let cssSelector2 = '[placeholder-videos] tp-yt-paper-spinner#spinner.style-scope.ytd-continuation-item-renderer'
  4395.  
  4396.     let cssSelector3 = '[placeholder-videos] div#button.style-scope.ytd-continuation-item-renderer'
  4397.  
  4398.     let res = {}
  4399.     if (flag & 1) {
  4400.       res.m1 = document.querySelector(cssSelector1)
  4401.       if (res.m1) wAttr(res.m1, 'is-two-columns', bool ? '' : false);
  4402.     }
  4403.  
  4404.     if (flag & 2) {
  4405.       res.m2 = document.querySelector(cssSelector2)
  4406.       if (res.m2) wAttr(res.m2, 'hidden', bool ? false : '');
  4407.     }
  4408.  
  4409.     if (flag & 4) {
  4410.       res.m3 = document.querySelector(cssSelector3)
  4411.       if (res.m3) wAttr(res.m3, 'hidden', bool ? '' : false);
  4412.     }
  4413.  
  4414.  
  4415.     return res
  4416.  
  4417.  
  4418.  
  4419.  
  4420.   }
  4421.  
  4422.   let lastScrollFetch = 0;
  4423.   // function isScrolledToEnd(){
  4424.   //     return (window.innerHeight + window.pageYOffset) >= document.scrollingElement.scrollHeight - 2;
  4425.   // }
  4426.   let lastOffsetTop = 0;
  4427.   window.addEventListener('scroll', function(evt) {
  4428.  
  4429.     //console.log(evt.target)
  4430.  
  4431.     if (!scriptEnable) return;
  4432.  
  4433.  
  4434.     if (!kRef(scrollingVideosList)) return;
  4435.     if (videoListBeforeSearch) return;
  4436.  
  4437.  
  4438.  
  4439.     let visibleHeight = document.scrollingElement.clientHeight;
  4440.     let totalHeight = document.scrollingElement.scrollHeight;
  4441.  
  4442.     if (totalHeight < visibleHeight * 1.5) return; // filter out two column view;
  4443.  
  4444.     let z = window.pageYOffset + visibleHeight;
  4445.     let h_advanced = totalHeight - (visibleHeight > 5 * 40 ? visibleHeight * 0.5 : 40);
  4446.  
  4447.  
  4448.  
  4449.     if (z > h_advanced && !isWideScreenWithTwoColumns()) {
  4450.  
  4451.       let ct = Date.now();
  4452.       if (ct - lastScrollFetch < 500) return; //prevent continuous calling
  4453.  
  4454.       lastScrollFetch = ct;
  4455.  
  4456.       let res = setVideosTwoColumns(2 | 4, true)
  4457.       if (res.m3 && res.m2) {
  4458.  
  4459.         //wait for DOM change, just in case
  4460.         requestAnimationFrame(() => {
  4461.           let { offsetTop } = res.m2 // as visibility of m2 & m3 switched.
  4462.  
  4463.           if (offsetTop - lastOffsetTop < 40) return; // in case bug, or repeating calling.  // the next button shall below the this button 
  4464.           lastOffsetTop = offsetTop
  4465.  
  4466.           res.m2.parentNode.dispatchEvent(new Event('yt-service-request-sent-button-renderer'))
  4467.  
  4468.           res = null
  4469.         })
  4470.  
  4471.       } else {
  4472.  
  4473.         res = null
  4474.       }
  4475.  
  4476.  
  4477.     }
  4478.  
  4479.  
  4480.  
  4481.  
  4482.   }, { passive: true })
  4483.  
  4484.   let sect_lastUpdate = 0;
  4485.  
  4486.   let sect_holder = null;
  4487.   let sect_hText = null;
  4488.   let sect_hTime = 0;
  4489.  
  4490.   let pendingOne = false;
  4491.   let mtf_forceCheckLiveVideo_disable = 0;
  4492.  
  4493.   let storeLastPanel = null;
  4494.  
  4495.   /** @type {boolean | null} */
  4496.   let deferredVarYTDHidden = null;
  4497.   let scheduledCommentRefresh = false;
  4498.  
  4499.   let pageInit_attrComments = false;
  4500.  
  4501.  
  4502.  
  4503.   let mgChatFrame = {
  4504.     setVar(elm) {
  4505.       mgChatFrame.kVar = mWeakRef(elm)
  4506.     },
  4507.     getVar() {
  4508.       return kRef(mgChatFrame.kVar)
  4509.     },
  4510.     inPage() {
  4511.       let elm = mgChatFrame.getVar();
  4512.       if (!elm) return false;
  4513.       let ytdFlexyElm = kRef(ytdFlexy);
  4514.       if(!ytdFlexyElm) return false;
  4515.       return ytdFlexyElm.contains(elm)
  4516.     }
  4517.   };
  4518.  
  4519.   const timeline = {
  4520.     // after initialized (initObserver)
  4521.     cn1:{},
  4522.     cn2:{},
  4523.     setTimeout( /** @type {TimerHandler} */ f,/** @type {number} */ d){
  4524.       return timeline.cn1[setTimeout(f,d)]=true
  4525.     },
  4526.     clearTimeout(/** @type {number} */ cid){
  4527.       timeline.cn1[cid]=false; return clearTimeout(cid)
  4528.     },
  4529.     setInterval(/** @type {TimerHandler} */ f,/** @type {number} */ d){
  4530.       return timeline.cn2[setInterval(f,d)]=true
  4531.     },
  4532.     clearInterval(/** @type {number} */ cid){
  4533.       timeline.cn2[cid]=false; return clearInterval(cid)
  4534.     },
  4535.     reset(){
  4536.       for(let cid in timeline.cn1) timeline.cn1[cid] && clearTimeout(cid)
  4537.       for(let cid in timeline.cn2) timeline.cn2[cid] && clearInterval(cid)
  4538.       timeline.cn1={}
  4539.       timeline.cn2={}
  4540.     }
  4541.   }
  4542.  
  4543.   class AttributeMutationObserver extends MutationObserver {
  4544.     constructor(flist){
  4545.       super((mutations, observer)=>{
  4546.         for(const mutation of mutations){
  4547.           if (mutation.type === 'attributes') {
  4548.             this.checker(mutation.target, mutation.attributeName)
  4549.           }
  4550.         }
  4551.       })
  4552.       this.flist=flist;
  4553.       this.res={}
  4554.     }
  4555.     
  4556.     takeRecords(){
  4557.       super.takeRecords();
  4558.     }
  4559.     disconnect(){
  4560.       this._target = null;
  4561.       super.disconnect();
  4562.     }
  4563.     observe(/** @type {Node} */ target){
  4564.       if(this._target) return; 
  4565.       this._target = mWeakRef(target);
  4566.       const options = {
  4567.         attributes: true,
  4568.         attributeFilter: Object.keys(this.flist),
  4569.         //attributeFilter: [ "status", "username" ],
  4570.         attributeOldValue: true
  4571.       }
  4572.       super.observe(target, options)
  4573.     }
  4574.     checker(/** @type {Node} */ target,/** @type {string} */ attributeName){
  4575.       let nv = target.getAttribute(attributeName);
  4576.       if(this.res[attributeName]!==nv){
  4577.         this.res[attributeName] = nv
  4578.         let f = this.flist[attributeName];
  4579.         if(f) f(attributeName, nv);
  4580.  
  4581.       }
  4582.     }
  4583.     check(delay = 0){
  4584.       setTimeout(()=>{
  4585.         let target = kRef(this._target)
  4586.         for(const key of Object.keys(this.flist)){
  4587.           this.checker(target,key)
  4588.         }
  4589.         target = null;
  4590.       },delay)
  4591.     }
  4592.   } 
  4593.  
  4594.   function goYoutubeGeniusLyrics(){
  4595.  
  4596.     setTimeout(function $f(){
  4597.  
  4598.       if(!document.documentElement.hasAttribute('w-engagement-panel-genius-lyrics')) return setTimeout($f,100)
  4599.  
  4600.       document.documentElement.dispatchEvent(new CustomEvent('engagement-panel-genius-lyrics'))
  4601.  
  4602.  
  4603.     },100)
  4604.  
  4605.  
  4606.  
  4607.   }
  4608.  
  4609.  
  4610.   /*
  4611.  
  4612.   To be implement: timeline
  4613.  
  4614.   timeline.setTimeout
  4615.   timeline.clearTimeout
  4616.   timeline.setInterval
  4617.   timeline.clearInterval
  4618.  
  4619.   */
  4620.  
  4621.  
  4622.  
  4623.   //Object.keys($0).filter(key=>!(key in $0.constructor.prototype))
  4624.  
  4625.   //Object.getOwnPropertyNames(window).filter(k=>k.startsWith('HTML'))
  4626.   //Object.getOwnPropertyNames(window).filter(k=>k.startsWith('HTML')).filter(k=>$0 instanceof window[k])
  4627.  
  4628.  
  4629.   /* --------------------------- browser's bug in -webkit-box ----------------------------------------- */
  4630.  
  4631.   /*
  4632.    fix bug for comment section - version 1.8.7 
  4633.   This issue is the bug in browser's rendering
  4634.    I guess, this is due to the lines clamp with display:-webkit-box 
  4635.    use stupid coding to let it re-render when its content become visible
  4636.    
  4637.   /*
  4638.  
  4639.   ytd-expander[should-use-number-of-lines][collapsed] > #content.ytd-expander {
  4640.       color: var(--yt-spec-text-primary);
  4641.       display: -webkit-box;
  4642.       overflow: hidden;
  4643.       max-height: none;
  4644.       -webkit-box-orient: vertical;
  4645.       -webkit-line-clamp: var(--ytd-expander-max-lines, 4);
  4646.   }
  4647.  
  4648.   // v1.8.36 imposed a effective solution for fixing this bug
  4649.  
  4650.   */
  4651.  
  4652.   /* --------------------------- browser's bug in -webkit-box ----------------------------------------- */
  4653.  
  4654.  
  4655.   /**
  4656.    * 
  4657.  
  4658.  
  4659. f.initChildrenObserver=function(){var a=this;this.observer=new MutationObserver(function(){return a.childrenChanged()});
  4660. this.observer.observe(this.$.content,{subtree:!0,childList:!0,attributes:!0});this.childrenChanged()};
  4661. f.childrenChanged=function(){var a=this;this.alwaysToggleable?this.canToggle=this.alwaysToggleable:this.canToggleJobId||(this.canToggleJobId=window.requestAnimationFrame(function(){$h(function(){a.canToggleJobId=0;a.calculateCanCollapse()})}))};
  4662.  
  4663.  
  4664. f.onIronResize=function(){this.recomputeOnResize&&this.childrenChanged()};
  4665.  
  4666.  
  4667. onButtonClick_:function(){this.fire("yt-close-upsell-dialog")},
  4668. computeHasHeader_:function(a){return!!a.headerBackgroundImage}});var geb;var heb;var ieb;var jeb;var xI=function(){var a=L.apply(this,arguments)||this;a.alignAuto=!1;a.collapsed=!0;a.isToggled=!1;a.alwaysCollapsed=!1;a.canToggle=!0;a.collapsedHeight=80;a.disableToggle=!1;a.alwaysToggleable=!1;a.reversed=!1;a.shouldUseNumberOfLines=!1;a.recomputeOnResize=!1;a.canToggleJobId=0;return a};
  4669. n(xI,L);f=xI.prototype;f.alwaysToggleableChanged=function(){this.alwaysToggleable&&(this.canToggle=!0)};
  4670.  
  4671.  
  4672. f.calculateCanCollapse=function(){this.canToggle=this.shouldUseNumberOfLines?this.alwaysToggleable||this.$.content.offsetHeight<this.$.content.scrollHeight:this.alwaysToggleable||this.$.content.scrollHeight>this.collapsedHeight};
  4673. f.detachObserver=function(){this.observer&&this.observer.disconnect()};
  4674.  
  4675.    * 
  4676.    * 
  4677.    * 
  4678.    */
  4679.  
  4680.  
  4681.  
  4682.  
  4683. })();
  4684.  
  4685.  
  4686.  
  4687.  
  4688.  
  4689.  
  4690.  
  4691.  
  4692.  
  4693.  
  4694.  
  4695.  
  4696.  
  4697.  
  4698.  
  4699.  
  4700.  
  4701.  
  4702.  
  4703.  
  4704.  
  4705.  
  4706.  
  4707.  
  4708.  
  4709.  
  4710.  
  4711.  
  4712.  
  4713.  
  4714.  
  4715.  
  4716.  
  4717.  
  4718.  
  4719.  
  4720.  
  4721.  
  4722.  
  4723.  
  4724.  
  4725.  
  4726.     // https://github.com/cyfung1031/Tabview-Youtube/raw/main/js/content.js
  4727.  
  4728. }
  4729.  
  4730.  
  4731. ;!(function $$() {
  4732.     'use strict';
  4733.  
  4734.     if(document.documentElement==null) return window.requestAnimationFrame($$)
  4735.  
  4736.     const cssTxt = GM_getResourceText("contentCSS");
  4737.  
  4738.     function addStyle (styleText) {
  4739.       const styleNode = document.createElement('style');
  4740.       styleNode.type = 'text/css';
  4741.       styleNode.textContent = styleText;
  4742.       document.documentElement.appendChild(styleNode);
  4743.       return styleNode;
  4744.     }
  4745.  
  4746.     addStyle (cssTxt);
  4747.  
  4748.     main(window.$);
  4749.  
  4750.  
  4751.     // Your code here...
  4752. })();