YouTube element blocker

Block specific elements of YouTube, like the Feed, Comments, Subscriptions bar and more
当前为 2021-01-05 提交的版本，查看最新版本。
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// ==UserScript==
// @name        YouTube element blocker
// @namespace   Syndamia
// @description Block specific elements of YouTube, like the Feed, Comments, Subscriptions bar and more
// @version     1.4.1
// @author      Kamen Mladenov
// @match       *://*.youtube.com/*
// @run-at      document-start
// ==/UserScript==

/* For suggestions, questions and reporting problems, 
 * open (if it doesn't exist) a new issue here: 
 * https://github.com/Syndamia/min-youtube-element-blocker/issues
 */

/* Change the word after the name of a setting (and after the column character) to
 * true to enable it and to false to disable it (DO NOT REMOVE THE COMMA AFTER THE WORD)
 * For example, enabled hideFeed will look like this: "hideFeed" : true,
 */

var generalSettings = {
  // The feed is the collection of videos, shown on the home page
  "hideFeed"        : false,

  // The guide drawer is the drawer (sidebar) to the left
  // which is used for navigating Playlists, Subscriptions, ...
  "hideGuideDrawer" : false,

    "hideGuideHomeTab"         : false,

    "hideGuideTrendingTab"     : false,

    "hideGuideMoreFromYouTube" : false,

    // The last section is the part under "More from YouTube",
    // where you can find the buttons for "Help", "Send Feedback", ...
    "hideGuideLastSection"     : false,

    // The footer is the part at the very bottom of the guide drawer 
    // that shows links like "About", "Terms", "Contact us", ...
    "hideGuideFooter"          : false,

  // Related videos are the recommendations at the end of a video
  "hideRelated"  : false,

  "hideChat"     : false,

  // The sidebar is the section to the right of a video
  // where you can find video and playlist suggestions
  "hideSidebar"  : false,

  "hideMerch"    : false,

  "hideComments" : false,
};

/* The whole YouTube website can also be blocked (independently of the other settings)
 * depending on the time of day and the day in the week. This feature is called timeout.
 */

var timeout = {
  "enabled"    : false,
  // Determines days, in which the timeout will be active. Each day is separated
  // by a comma. Can be 0 to 6, where 0 is Sunday, 1 is Monday and 6 is Saturday.
  "activeDays" : [0, 1, 2, 3, 4, 5, 6],

  // Determines time from which the timeout will block YouTube.
  // Must be numbers, from 0 to 24 for hour and from 0 to 59 for minutes.
  "startHour"    : 09,
  "startMinutes" : 00,

  // Determines end of time from which the timeout will block YouTube.
  // Must be numbers, from 0 to 24 for hour and from 0 to 59 for minutes.
  "endHour"    : 17,
  "endMinutes" : 00,
};

/************************************/
/* END OF USER CONFIGURABLE OPTIONS */
/************************************/

/* CSS that is added to page for hiding the elements */

var css = {
  "hideFeed": `
    #feed, ytd-browse[page-subtype=home] {
      display: none !important;
    }`,

  "hideGuideDrawer": `
    #appbar-guide-menu {
      width: 0; 
    }
    app-drawer#guide {
      display: none !important;
    }
    ytd-mini-guide-renderer {
      display: none !important; 
    }
    #guide-button {
      display: none !important;
    }`,

  "hideGuideHomeTab": `
    #home-guide-item {
      display: none !important;
    }
    ytd-guide-section-renderer:first-child #items > ytd-guide-entry-renderer:first-child {
      display: none !important;
    }
    #appbar-nav li:first-child {
      display: none !important;
    }
    ytd-mini-guide-renderer #items ytd-mini-guide-entry-renderer:first-child {
      display: none !important;
    }`,

  "hideGuideTrendingTab": `
    #trending-guide-item {
      display: none !important;
    }
    ytd-guide-section-renderer:first-child #items > ytd-guide-entry-renderer:nth-child(2) {
      display: none !important;
    }
    #appbar-nav li:nth-child(2) {
      display: none !important;
    }
    ytd-mini-guide-renderer #items ytd-mini-guide-entry-renderer:nth-child(2) {
      display: none !important;
    }`,

  "hideGuideMoreFromYouTube": `
    ytd-guide-section-renderer:nth-last-child(2) {
      display: none !important;
    }`,

  "hideGuideLastSection": `
    ytd-guide-section-renderer:last-child {
      display: none !important;
    }`,

  "hideGuideFooter": `
    #footer {
      display: none !important;
    }`,

  "hideRelated": `
    .ytp-endscreen-content {
      display: none !important;
    }
    .ytp-ce-video {
      display: none !important;
    }`,

  "hideChat": `
    ytd-live-chat-frame {
        display: none !important;
    }`,

  "hideSidebar": `
    #watch7-sidebar-contents, #related {
      display: none !important;
    }`,

  "hideMerch": `
    .ytd-merch-shelf-renderer {
      display: none !important;
    }`,

  "hideComments": `
    #watch-discussion, #comments {
      display: none !important; 
    }`,
};

// Element, that will contain CSS of activated settings
var style = document.createElement('style');

if(timeout["enabled"]) {
  var now = new Date(), 
      start = new Date(), 
      end = new Date();

  start.setHours(timeout["startHour"], timeout["startMinutes"], 0);
  end.setHours(timeout["endHour"], timeout["endMinutes"], 0);

  if (now >= start && now < end && timeout["activeDays"].includes(now.getDay())) {
    style.textContent = "body { display: none !important; }"
  }
}

// Execute general settings, only if the timeout isn't active
if (style.textContent === "") {
  for (var setting in generalSettings) {
    if (!generalSettings[setting]) continue;
  
    style.textContent += css[setting];
  }
}

document.head.appendChild(style);
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