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Youtube Scroll Volume

Use the scroll wheel to adjust volume of youtube videos

当前为 2020-05-08 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Youtube Scroll Volume
  3. // @namespace    https://greasyfork.org/users/649
  4. // @version      1.1.9
  5. // @description  Use the scroll wheel to adjust volume of youtube videos
  6. // @author       Adrien Pyke
  7. // @match        *://www.youtube.com/*
  8. // @grant        GM_addStyle
  9. // @grant        GM_getValue
  10. // @grant        GM_setValue
  11. // @grant        GM_registerMenuCommand
  12. // @require      https://gitcdn.link/repo/kufii/My-UserScripts/fa4555701cf5a22eae44f06d9848df6966788fa8/libs/gm_config.js
  13. // @require      https://gitcdn.link/repo/fuzetsu/userscripts/b38eabf72c20fa3cf7da84ecd2cefe0d4a2116be/wait-for-elements/wait-for-elements.js
  14. // @require      https://gitcdn.link/repo/kufii/quick-query.js/2993f91ae90f3b2aff4af7e9ce0b08504f5c8060/dist/window/qq.js
  15. // ==/UserScript==
  16.  
  17. (() => {
  18.   'use strict';
  19.  
  20.   const { q } = window.QuickQuery;
  21.  
  22.   const Util = {
  23.     bound: (num, min, max) => Math.max(Math.min(num, max), min)
  24.   };
  25.  
  26.   const Config = GM_config([
  27.     { key: 'reverse', label: 'Reverse Scroll', default: false, type: 'bool' },
  28.     { key: 'horizontal', label: 'Use Horizontal Scroll', default: false, type: 'bool' },
  29.     { key: 'step', label: 'Change By', default: 5, type: 'number', min: 1, max: 100 },
  30.     { key: 'hud', label: 'Display HUD', default: true, type: 'bool' },
  31.     {
  32.       key: 'requireShift',
  33.       label: 'Only handle scroll if holding "Shift" key',
  34.       default: false,
  35.       type: 'bool'
  36.     }
  37.   ]);
  38.   GM_registerMenuCommand('Youtube Scroll Volume Settings', Config.setup);
  39.  
  40.   let config = Config.load();
  41.   Config.onsave = (newConf) => (config = newConf);
  42.  
  43.   GM_addStyle(/* css */ `
  44. 		.YSV_hud {
  45. 			display: flex;
  46. 			flex-direction: column;
  47. 			justify-content: flex-end;
  48. 			align-items: center;
  49. 			position: absolute;
  50. 			top: 0;
  51. 			bottom: 0;
  52. 			left: 0;
  53. 			right: 0;
  54. 			opacity: 0;
  55. 			transition: opacity 500ms ease 0s;
  56. 			z-index: 10;
  57. 			pointer-events: none;
  58. 		}
  59. 		.YSV_bar {
  60. 			background-color: #444;
  61. 			border: 2px solid white;
  62. 			width: 80%;
  63. 			max-width: 600px;
  64. 			margin-bottom: 10%;
  65. 		}
  66. 		.YSV_progress {
  67. 			transition: width 100ms ease-out 0s;
  68. 			background-color: #888;
  69. 			height: 20px;
  70. 		}
  71. 	`);
  72.  
  73.   const createHud = () => {
  74.     const hud = document.createElement('div');
  75.     hud.classList.add('YSV_hud');
  76.     hud.innerHTML = '<div class="YSV_bar"><div class="YSV_progress"></div></div>';
  77.     return hud;
  78.   };
  79.  
  80.   waitForElems({
  81.     sel: 'ytd-player',
  82.     onmatch(node) {
  83.       let id;
  84.  
  85.       const hud = createHud();
  86.       const progress = q(hud).q('.YSV_progress');
  87.       node.appendChild(hud);
  88.  
  89.       const showHud = (volume) => {
  90.         clearTimeout(id);
  91.         progress.style.width = `${volume}%`;
  92.         hud.style.opacity = 1;
  93.         id = setTimeout(() => (hud.style.opacity = 0), 800);
  94.       };
  95.  
  96.       node.onwheel = (e) => {
  97.         if (config.requireShift && !e.shiftKey) return;
  98.         const player = node.getPlayer();
  99.         const dir =
  100.           ((config.horizontal ? -e.deltaX : e.deltaY) > 0 ? -1 : 1) * (config.reverse ? -1 : 1);
  101.  
  102.         const vol = Util.bound(player.getVolume() + config.step * dir, 0, 100);
  103.         if (vol > 0 && player.isMuted()) player.unMute();
  104.         player.setVolume(vol);
  105.         if (config.hud) showHud(vol);
  106.  
  107.         e.preventDefault();
  108.         e.stopImmediatePropagation();
  109.       };
  110.     }
  111.   });
  112. })();