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Youtube Downloader

Add video download button in combo menu.

目前为 2023-12-11 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name                Youtube Downloader
  3. // @version             1.0.2
  4. // @description         Add video download button in combo menu.
  5. // @author              FawayTT
  6. // @namespace           FawayTT
  7. // @icon                https://i.imgur.com/D57wQrY.png
  8. // @match               https://www.youtube.com/watch*
  9. // @grant               none
  10. // @license             MIT
  11. // ==/UserScript==
  12.  
  13. (function () {
  14.   let timeout;
  15.   let replaced = false;
  16.  
  17.   function addButton() {
  18.     if (document.location.href.includes('playlist') || document.getElementsByTagName('custom-dwn-button').length !== 0) return;
  19.       const menu = document.getElementsByTagName('ytd-menu-popup-renderer')[0];
  20.       const downButton = document.createElement('custom-dwn-button');
  21.       const icon = document.createElement('div');
  22.       const text = document.createElement('div');
  23.       menu.style.minHeight = '100px';
  24.       downButton.style.cssText = `
  25.           cursor: pointer;
  26.           margin-top: 8px;
  27.           font-size: 1.4rem;
  28.           line-height: 2rem;
  29.           font-weight: 400;
  30.           position: relative;
  31.           color: var(--yt-spec-text-primary);
  32.           font-family: "Roboto","Arial",sans-serif;
  33.           white-space: nowrap;
  34.           display: flex;
  35.           padding: 10px 0 10px 21px;
  36.           gap: 21px;
  37.           align-items: center;`;
  38.       icon.innerText = '⇩';
  39.       text.innerText = 'Download';
  40.       icon.style.cssText = `
  41.             font-size: 2.1rem;`
  42.       downButton.appendChild(icon);
  43.       downButton.appendChild(text);
  44.       downButton.addEventListener('click', onClick);
  45.       downButton.addEventListener('mouseenter', ()=>{
  46.         downButton.style.backgroundColor = 'rgba(255,255,255,0.1)';
  47.       });
  48.       downButton.addEventListener('mouseleave', ()=>{
  49.         downButton.style.backgroundColor = '';
  50.       });
  51.       menu.insertBefore(downButton, menu.firstChild);
  52.   }
  53.  
  54.   function watchMenu() {
  55.       const menu = document.getElementById('button-shape');
  56.       menu.addEventListener('click', addButton);
  57.       replaced = true;
  58.       clearTimeout(timeout);
  59.   }
  60.  
  61.   function onClick() {
  62.       window.open(document.location.href.replace('youtube', 'youtubepp'));
  63.   }
  64.  
  65.   if (document.hidden) {
  66.     window.addEventListener("visibilitychange", ()=>{
  67.       if (document.hidden) return;
  68.       for (let i = 0; i < 10; i++) {
  69.          if (replaced) break;
  70.          timeout = setTimeout(watchMenu, 500 * i);
  71.       }
  72.     })
  73.   } else {
  74.       for (let i = 0; i < 10; i++) {
  75.          if (replaced) break;
  76.          timeout = setTimeout(watchMenu, 500 * i);
  77.       }
  78.   }
  79. })();