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YouTube Hide Chat by Default

Hides chat on YouTube live streams by default

当前为 2022-11-02 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         YouTube Hide Chat by Default
  3. // @namespace    https://skoshy.com
  4. // @version      0.6.1
  5. // @description  Hides chat on YouTube live streams by default
  6. // @author       Stefan K.
  7. // @match        https://*.youtube.com/*
  8. // @grant        none
  9. // @icon         https://youtube.com/favicon.ico
  10. // ==/UserScript==
  11.  
  12. (function() {
  13.   "use strict";
  14.   const scriptId = "youtube-hide-chat-by-default";
  15.  
  16.   // configurable vars
  17.   // - if youtube decides to use a new button type, add it here
  18.   const buttonSelectors = ["button"];
  19.   // - for different languages for the HIDE CHAT text, add them here
  20.   const hideChatTexts = [
  21.     'HIDE CHAT', // english
  22.     'HIDE CHAT REPLAY', // english, chat replay
  23.     'OCULTAR CHAT', // spanish
  24.     'MASQUER LA CONVERSATION PAR CHAT', // french
  25.     'MASQUER LE CLAVARDAGE', // french canada
  26.     'NASCONDI CHAT', // italian
  27.     'OCULTAR CONVERSA', // portuguese
  28.     'চ্চাট লুকুৱাওক', // bengali
  29.     'च्याट लुकाउनुहोस्', // nepali
  30.     'चैट छिपाएं', // hindi
  31.     'チャットを非表示', // japanese
  32.     '隐藏聊天记录', // zh-Hans-CN
  33.     '隱藏即時通訊', // zh-Hant-TW and zh-Hant-HK
  34.   ];
  35.  
  36.   const nodeIdString = `${scriptId}-id`;
  37.  
  38.   function log(...toLog) {
  39.     console.log(`[${scriptId}]:`, ...toLog);
  40.   }
  41.  
  42.   function getUrlSearchParams() {
  43.     return new URLSearchParams(document.location.search.substring(1));
  44.   }
  45.  
  46.   function isHideChatButton(node) {
  47.     return hideChatTexts.includes(node.innerText.toUpperCase().trim());
  48.   }
  49.  
  50.   function getNodeId(node) {
  51.     let nodeId = node.getAttribute(nodeIdString);
  52.  
  53.     return nodeId;
  54.   }
  55.  
  56.   function setAndGetNodeId(node, setIdTo) {
  57.     const originalNodeId = getNodeId(node);
  58.  
  59.     const nodeId = setIdTo ? setIdTo : Math.random().toString();
  60.     node.setAttribute(nodeIdString, nodeId);
  61.  
  62.     return { originalNodeId, nodeId };
  63.   }
  64.  
  65.   function addedNodeHandler(node) {
  66.     if (
  67.       !node.matches ||
  68.       !buttonSelectors.some(b => node.matches(b))
  69.     ) {
  70.       return;
  71.     }
  72.  
  73.     if (isHideChatButton(node)) {
  74.       log(`Found a hide-chat button`, node);
  75.  
  76.       const { nodeId, originalNodeId } = setAndGetNodeId(node, getUrlSearchParams().get('v'));
  77.  
  78.       if (originalNodeId === nodeId) return; // we've already automatically triggered hide chat
  79.  
  80.       log(`Hid the chat by default`, document.querySelector('yt-live-chat-message-input-renderer'));
  81.  
  82.       const tryToHideChatDetails = {
  83.         interval: null,
  84.         triedAttempts: 0,
  85.       };
  86.  
  87.       tryToHideChatDetails.interval = setInterval(() => {
  88.         tryToHideChatDetails.triedAttempts++;
  89.  
  90.         if (document.querySelector('ytd-live-chat-frame iframe')?.offsetHeight ?? 0 > 0) {
  91.           log('Clicking again because live chat still there');
  92.           node.click();
  93.           tryToHideChatDetails.triedAttempts = 0;
  94.         }
  95.  
  96.         if (tryToHideChatDetails.triedAttempts > 6) {
  97.           clearInterval(tryToHideChatDetails.interval);
  98.         }
  99.       }, 250);
  100.  
  101.       return;
  102.     }
  103.   }
  104.  
  105.   const bodyObserver = new MutationObserver(function(mutations) {
  106.     mutations.forEach(function(mutation) {
  107.       const newNodes = [];
  108.  
  109.       mutation.addedNodes.forEach(addedNode => {
  110.         newNodes.push(addedNode);
  111.  
  112.         // it might be text node or comment node which don't have querySelectorAll
  113.         if (addedNode.querySelectorAll) {
  114.           buttonSelectors.forEach(bs => {
  115.             addedNode.querySelectorAll(bs).forEach((n) => {
  116.               newNodes.push(n);
  117.             });
  118.           });
  119.         }
  120.       });
  121.  
  122.       newNodes.forEach(n => addedNodeHandler(n));
  123.     });
  124.   });
  125.  
  126.   setInterval(() =>
  127.     Array.from(
  128.       document.querySelectorAll(buttonSelectors.join(', '))
  129.     ).forEach(n => addedNodeHandler(n))
  130.   , 3000);
  131.  
  132.   bodyObserver.observe(document.body, {
  133.     attributes: true,
  134.     childList: true,
  135.     subtree: true,
  136.     characterData: true
  137.   });
  138. })();