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a helper for skiping audio intro
// ==UserScript==
// @name skip audio intro
// @name:zh-CN 音频片头和片尾跳过
// @namespace https://github.com/22earth
// @description a helper for skiping audio intro
// @description:zh-cn 跳过音频片头和片尾
// @author 22earth
// @include https://www.ximalaya.com/*
// @version 0.0.1
// @grant GM_registerMenuCommand
// @grant GM_setValue
// @grant GM_getValue
// @run-at document-start
// @license MIT
// ==/UserScript==
const SKIP_START_CONFIG = 'e_user_skip_start_config';
const SKIP_END_CONFIG = 'e_user_skip_end_config';
function setStart() {
var start = +prompt('设置跳过片头秒数', '20');
skipStartSec = start;
GM_setValue(SKIP_START_CONFIG, start);
}
function setEnd() {
var sec = +prompt('设置跳过片尾秒数', '10');
skipEndSec = +sec;
GM_setValue(SKIP_END_CONFIG, sec);
}
if (GM_registerMenuCommand) {
GM_registerMenuCommand('设置跳过片头秒数', setStart);
GM_registerMenuCommand('设置跳过片尾秒数', setEnd);
}
let skipStartSec = GM_getValue(SKIP_START_CONFIG, 20);
let skipEndSec = GM_getValue(SKIP_END_CONFIG, 10);
function setAudioEvents(audio) {
audio.addEventListener('canplaythrough', function () {
if (this.currentTime < skipStartSec) {
this.currentTime = skipStartSec;
}
});
audio.addEventListener('timeupdate', function () {
if (this.currentTime >= this.duration) {
return;
}
if (this.currentTime + skipEndSec > this.duration) {
this.currentTime = this.duration;
}
});
}
(function (window) {
function hookAudioContructor() {
var fakeObj = new Proxy(window.Audio, {
get: function (target, p) {
return Reflect.get(target, p);
},
construct(target, args) {
let inst = new target(...args);
setAudioEvents(inst);
return inst;
},
});
return fakeObj;
}
function setDescriptor(fakeObj, prop) {
Object.defineProperty(window, prop, {
get: function () {
return fakeObj;
},
set: function (v) {
console.log(`检测到修改 ${prop}`);
},
});
}
setDescriptor(hookAudioContructor(), 'Audio');
})(unsafeWindow);