// ==UserScript==
// @name         全能防切屏防暂停
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  屏蔽切屏检测、焦点检测、页面隐藏检测，视频网课不暂停
// @author       You
// @match        *://*/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // 1. 强制篡改页面可见状态（核心欺骗）
    Object.defineProperty(document, 'hidden', {
        value: false,
        configurable: true
    });
    Object.defineProperty(document, 'visibilityState', {
        value: 'visible',
        configurable: true
    });

    // 2. 劫持事件，拦截所有检测事件
    const originAdd = EventTarget.prototype.addEventListener;
    const banEvents = [
        'visibilitychange',
        'blur',
        'focusout',
        'pagehide',
        'mouseleave',
        'mouseout'
    ];

    EventTarget.prototype.addEventListener = function(type, cb, opt) {
        if (banEvents.includes(type)) return;
        return originAdd.call(this, type, cb, opt);
    };

    // 3. 清空全局焦点监听
    window.onblur = null;
    window.onfocus = null;
    document.onvisibilitychange = null;

    console.log("✅ 防切屏脚本已常驻生效！");
})();