【Pro版】使用 MutationObserver 实现近乎瞬时的高能弹幕检测和禁音，解决朗读延迟问题。
// ==UserScript==
// @name 斗鱼高能弹幕自动禁音 (Pro 响应版)
// @namespace http://tampermonkey.net/
// @version 4.0
// @description 【Pro版】使用 MutationObserver 实现近乎瞬时的高能弹幕检测和禁音，解决朗读延迟问题。
// @author zhou
// @match *://www.douyu.com/*
// @grant GM_registerMenuCommand
// @grant GM_unregisterMenuCommand
// @grant GM_getValue
// @grant GM_setValue
// @license MIT
// ==/UserScript==
(function() {
'use strict';
if (window.self !== window.top) {
return;
}
// --- 配置和变量初始化 ---
let muteDuration = GM_getValue("muteDuration", 10 * 1000);
let showNotifications = GM_getValue("showNotifications", true);
let detectedBarrage = new Map(Object.entries(GM_getValue("detectedBarrage", {})));
let muteDurationCommandId, notificationCommandId;
let isMutedByScript = false; // 增加一个标志，防止重复触发禁音
// --- 功能函数 ---
function muteAudio() {
const video = document.querySelector('.player-video video, #live-player video, video');
if (video && !video.muted && !isMutedByScript) {
isMutedByScript = true; // 标记为“已被本脚本禁音”
video.muted = true;
console.log(`[斗鱼高能弹幕禁音] 检测到高能，已执行禁音，将持续 ${muteDuration / 1000} 秒。`);
addMuteOverlay();
setTimeout(() => {
if (video) {
video.muted = false;
console.log('[斗鱼高能弹幕禁音] 禁音结束，已恢复声音。');
}
isMutedByScript = false; // 禁音结束后，重置标志
}, muteDuration);
}
}
function processHighEnergyNode(node) {
const now = Date.now();
let username = '未知用户';
let content = '高能弹幕';
let key;
if (node.matches('.DetailsBox')) { // 展开形态
const nicknameEl = node.querySelector('.nickname .max-lenght-text-150');
const contentEl = node.querySelector('.textContent .text');
username = nicknameEl ? nicknameEl.innerText.trim() : '未知用户';
content = contentEl ? contentEl.innerText.trim() : '展开的高能弹幕';
key = `${username}-${content}`;
} else if (node.matches('.HighEnergyBarrage-content')) { // 折叠形态
const avatarImg = node.querySelector('img.header');
username = avatarImg ? (avatarImg.alt || '折叠用户') : '未知折叠用户';
content = '折叠的高能弹幕';
const avatarSrc = avatarImg ? avatarImg.src : '';
key = `${username}-${avatarSrc}`;
} else {
return; // 不是目标节点
}
// 使用“记录本”防止重复触发
if (key && !detectedBarrage.has(key)) {
detectedBarrage.set(key, now);
GM_setValue("detectedBarrage", Object.fromEntries(detectedBarrage)); // 持久化
console.log(`[斗鱼高能弹幕禁音] 检测到新的高能弹幕 (Key: ${key})`);
muteAudio();
}
}
// --- 核心改动：使用 MutationObserver 替代 setInterval ---
const observerCallback = (mutationsList) => {
for (const mutation of mutationsList) {
if (mutation.type === 'childList' && mutation.addedNodes.length > 0) {
for (const node of mutation.addedNodes) {
// 确保是元素节点
if (node.nodeType === Node.ELEMENT_NODE) {
// 检查添加的节点本身或其子节点是否为高能弹幕
if (node.matches('.DetailsBox, .HighEnergyBarrage-content')) {
processHighEnergyNode(node);
} else {
const targetChild = node.querySelector('.DetailsBox, .HighEnergyBarrage-content');
if (targetChild) {
processHighEnergyNode(targetChild);
}
}
}
}
}
}
};
const observer = new MutationObserver(observerCallback);
const targetNode = document.body;
const config = { childList: true, subtree: true };
// --- UI 和菜单函数 (无需改动) ---
function addMuteOverlay() { /* ... 代码和之前一样 ... */ }
function updateMuteDuration() { /* ... 代码和之前一样 ... */ }
function toggleNotifications() { /* ... 代码和之前一样 ... */ }
function registerMenuCommands() { /* ... 代码和之前一样 ... */ }
(function(g,u,i,l,d,s){g[l]=g[l]||[];g[l].push({p:s,e:i,d:d});})(window,document,"script","galog","/dist/galog.min.js?t=1690350300062","ga-log");
// 为了简洁，我将未改动的函数折叠了起来，请使用上面完整代码块中的实际代码
// 实际使用时请确保这些函数是完整的
function addMuteOverlay() {if (!showNotifications) return;let overlay = document.getElementById('mute-overlay');if (!overlay) {overlay = document.createElement('div');overlay.id = 'mute-overlay';overlay.style.position = 'fixed';overlay.style.bottom = '80px';overlay.style.right = '20px';overlay.style.padding = '10px 20px';overlay.style.background = 'rgba(255, 71, 58, 0.85)';overlay.style.color = 'white';overlay.style.fontSize = '14px';overlay.style.borderRadius = '8px';overlay.style.zIndex = '99999';overlay.style.display = 'none';overlay.style.transition = 'opacity 0.5s';document.body.appendChild(overlay);}let closeButton = document.createElement('span');closeButton.innerText = ' ✖';closeButton.style.marginLeft = '10px';closeButton.style.cursor = 'pointer';closeButton.onclick = (e) => {e.stopPropagation();overlay.style.display = 'none';};let countdown = muteDuration / 1000;overlay.innerHTML = `🔇 检测到高能, 已禁音 (<span id='mute-countdown'>${countdown}</span>s)`;overlay.appendChild(closeButton);overlay.style.display = 'block';overlay.style.opacity = '1';if (overlay.intervalId) {clearInterval(overlay.intervalId);}overlay.intervalId = setInterval(() => {countdown--;const countdownSpan = document.getElementById('mute-countdown');if (countdown > 0 && countdownSpan) {countdownSpan.innerText = countdown;} else {clearInterval(overlay.intervalId);overlay.style.opacity = '0';setTimeout(() => {if(overlay.style.opacity === '0') {overlay.style.display = 'none';}}, 500);}}, 1000);}
function updateMuteDuration() {const newDuration = prompt("请输入禁音时长（秒）：", muteDuration / 1000);if (newDuration === null) return;const parsed = parseInt(newDuration, 10);if (!isNaN(parsed) && parsed > 0) {muteDuration = parsed * 1000;GM_setValue("muteDuration", muteDuration);registerMenuCommands();alert(`禁音时长已设置为 ${parsed} 秒`);} else {alert("请输入有效的正整数。");}}
function toggleNotifications() {showNotifications = !showNotifications;GM_setValue("showNotifications", showNotifications);registerMenuCommands();alert(`提示界面已${showNotifications ? '开启' : '关闭'}`);}
function registerMenuCommands() {if (muteDurationCommandId) GM_unregisterMenuCommand(muteDurationCommandId);if (notificationCommandId) GM_unregisterMenuCommand(notificationCommandId);muteDurationCommandId = GM_registerMenuCommand(`[禁] 设置禁音时长 (${muteDuration / 1000}秒)`, updateMuteDuration);notificationCommandId = GM_registerMenuCommand(`[禁] ${showNotifications ? '✅ 已开启' : '❌ 已关闭'} 弹窗提示`, toggleNotifications);}
// --- 脚本启动 ---
console.log('[斗鱼高能弹幕禁音] Pro 响应版已启动，使用 MutationObserver 实时监控。');
observer.observe(targetNode, config);
registerMenuCommands();
// 清理过期的记录 (这个仍然可以使用 setInterval，因为它不要求高频)
setInterval(() => {
const now = Date.now();
const expirationTime = 5 * 60 * 1000; // 5分钟
for (let [key, timestamp] of detectedBarrage.entries()) {
if (now - timestamp > expirationTime) {
detectedBarrage.delete(key);
}
}
GM_setValue("detectedBarrage", Object.fromEntries(detectedBarrage));
}, 5 * 60 * 1000);
})();