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YouTube Check Out Updated Channels

Open channels with updates in new tabs

当前为 2021-02-20 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         YouTube Check Out Updated Channels
  3. // @namespace    http://tampermonkey.net/
  4. // @version      0.4
  5. // @description  Open channels with updates in new tabs
  6. // @author       Nathaniel Wu
  7. // @include      *www.youtube.com/*
  8. // @license      Apache-2.0
  9. // @supportURL   https://gist.github.com/Nathaniel-Wu/fabd62df2d6146121fa4b9cfcae08763
  10. // @grant        GM_getValue
  11. // @grant        GM_setValue
  12. // @run-at       document-idle
  13. // ==/UserScript==
  14.  
  15. (function () {
  16.     'use strict';
  17.  
  18.     function is_channel_updated(channel) {
  19.         return window.getComputedStyle(channel.querySelector('div#newness-dot')).display == "block";
  20.     }
  21.     function check_for_updates(subscriptions) {
  22.         subscriptions.querySelectorAll('ytd-guide-entry-renderer').forEach(channel => {
  23.             if (is_channel_updated(channel)) {
  24.                 let link = channel.querySelector('a').href;
  25.                 if (!Boolean(link.match(/\/videos($|\/$)/)))
  26.                     link += '/videos'
  27.                 window.open(link);
  28.             }
  29.         });
  30.     }
  31.     function checkout_updated_channels() {
  32.         let subscriptions = document.querySelector('div#content > tp-yt-app-drawer#guide div#sections > ytd-guide-section-renderer:nth-of-type(2) > div#items');//subject to change
  33.         if (subscriptions == null)
  34.             return false;
  35.         let channels = subscriptions.querySelectorAll(':scope > ytd-guide-entry-renderer');
  36.         if (is_channel_updated(channels[channels.length - 1])) {
  37.             let active_DOMNodeInsertion = 0;
  38.             subscriptions.addEventListener("DOMNodeInserted", () => {
  39.                 active_DOMNodeInsertion++;
  40.                 setTimeout(() => {
  41.                     active_DOMNodeInsertion--;
  42.                     if (active_DOMNodeInsertion == 0)
  43.                         check_for_updates(subscriptions);
  44.                 }, 100);
  45.             });
  46.             subscriptions.querySelector('ytd-guide-collapsible-entry-renderer > ytd-guide-entry-renderer#expander-item').click();
  47.         } else
  48.             check_for_updates(subscriptions);
  49.         return true;
  50.     }
  51.     function repeat_until_successful(function_ptr, interval) {
  52.         if (!function_ptr())
  53.             setTimeout(() => {
  54.                 repeat_until_successful(function_ptr, interval);
  55.             }, interval);
  56.     }
  57.     function in_iframe() {
  58.         try {
  59.             return window.self !== window.top;
  60.         } catch (e) {
  61.             return true;
  62.         }
  63.     }
  64.     if (!in_iframe()) {
  65.         setTimeout(() => {
  66.             let timestamp_now = (new Date()).getTime();
  67.             let timestamp_last_check = GM_getValue('timestampLastYouTubeUpdateCheck', Number.MIN_SAFE_INTEGER);
  68.             if (timestamp_last_check < 0 || timestamp_now - timestamp_last_check > 120000/* 2 minutes */)
  69.                 GM_setValue('timestampLastYouTubeUpdateCheck', timestamp_now);
  70.             else
  71.                 return;
  72.             repeat_until_successful(checkout_updated_channels, 1000);
  73.         }, 5000);// 5 seconds delay to avoid possible conflict with other scripts
  74.     }
  75. })();