☰

skip audio intro

a helper for skiping audio intro

  1. // ==UserScript==
  2. // @name        skip audio intro
  3. // @name:zh-CN  音频片头和片尾跳过
  4. // @namespace   https://github.com/22earth
  5. // @description a helper for skiping audio intro
  6. // @description:zh-cn 跳过音频片头和片尾
  7. // @author      22earth
  8. // @include     https://www.ximalaya.com/*
  9. // @version     0.0.1
  10. // @grant       GM_registerMenuCommand
  11. // @grant       GM_setValue
  12. // @grant       GM_getValue
  13. // @run-at      document-start
  14. // @license     MIT
  15. // ==/UserScript==
  16.  
  17.  
  18. const SKIP_START_CONFIG = 'e_user_skip_start_config';
  19. const SKIP_END_CONFIG = 'e_user_skip_end_config';
  20. function setStart() {
  21.     var start = +prompt('设置跳过片头秒数', '20');
  22.     skipStartSec = start;
  23.     GM_setValue(SKIP_START_CONFIG, start);
  24. }
  25. function setEnd() {
  26.     var sec = +prompt('设置跳过片尾秒数', '10');
  27.     skipEndSec = +sec;
  28.     GM_setValue(SKIP_END_CONFIG, sec);
  29. }
  30. if (GM_registerMenuCommand) {
  31.     GM_registerMenuCommand('设置跳过片头秒数', setStart);
  32.     GM_registerMenuCommand('设置跳过片尾秒数', setEnd);
  33. }
  34. let skipStartSec = GM_getValue(SKIP_START_CONFIG, 20);
  35. let skipEndSec = GM_getValue(SKIP_END_CONFIG, 10);
  36. function setAudioEvents(audio) {
  37.     audio.addEventListener('canplaythrough', function () {
  38.         if (this.currentTime < skipStartSec) {
  39.             this.currentTime = skipStartSec;
  40.         }
  41.     });
  42.     audio.addEventListener('timeupdate', function () {
  43.         if (this.currentTime >= this.duration) {
  44.             return;
  45.         }
  46.         if (this.currentTime + skipEndSec > this.duration) {
  47.             this.currentTime = this.duration;
  48.         }
  49.     });
  50. }
  51. (function (window) {
  52.     function hookAudioContructor() {
  53.         var fakeObj = new Proxy(window.Audio, {
  54.             get: function (target, p) {
  55.                 return Reflect.get(target, p);
  56.             },
  57.             construct(target, args) {
  58.                 let inst = new target(...args);
  59.                 setAudioEvents(inst);
  60.                 return inst;
  61.             },
  62.         });
  63.         return fakeObj;
  64.     }
  65.     function setDescriptor(fakeObj, prop) {
  66.         Object.defineProperty(window, prop, {
  67.             get: function () {
  68.                 return fakeObj;
  69.             },
  70.             set: function (v) {
  71.                 console.log(`检测到修改 ${prop}`);
  72.             },
  73.         });
  74.     }
  75.     setDescriptor(hookAudioContructor(), 'Audio');
  76. })(unsafeWindow);