Collect subscribed channel links from https://www.youtube.com/feed/channels, show count at bottom-right, auto language detection (Chinese/English).
// ==UserScript==
// @name:zh-CN YouTube 关注的频道导出
// @name YouTube Subscribed Channels Exporter
// @namespace http://tampermonkey.net/
// @version 1.0.1
// @description:zh-CN 在 https://www.youtube.com/feed/channels 采集关注的频道链接，页面右下显示数量。中/英自动适配浏览器语言。
// @description Collect subscribed channel links from https://www.youtube.com/feed/channels, show count at bottom-right, auto language detection (Chinese/English).
// @match https://*.youtube.com/feed/channels
// @author kaesinol
// @grant GM_registerMenuCommand
// @grant GM_setClipboard
// @grant GM_download
// @license MIT
// ==/UserScript==
(function () {
'use strict';
// ===== i18n =====
const lang = (navigator.language || navigator.userLanguage || 'en').toLowerCase();
const zh = lang.startsWith('zh');
const T = {
start: zh ? '开始采集' : 'Start collecting',
stop: zh ? '停止采集' : 'Stop collecting',
copied: zh ? '已复制到剪贴板' : 'Copied to clipboard',
downloaded: zh ? '开始下载' : 'Download started',
done: (n, r) => zh ? `采集完成，共 ${n} 个频道链接（rounds=${r}）` : `Collection done: ${n} channels (rounds=${r})`,
panel: zh ? '频道数量: ' : 'Channels: ',
alreadyRunning: zh ? '脚本已在运行' : 'Collector already running',
};
// ===== 参数 & 状态 =====
const collected = new Set();
let running = false;
let stopRequested = false;
const AFTER_SCROLL_WAIT_MS = 1200; // 滚动到底后等待加载时间
const SECOND_TRY_WAIT_MS = 800; // 再试一次后等待时间
const MAX_ROUNDS = 6; // 防止无限循环（每轮尝试滚到底并再试一次）
// ===== 简单面板（右下） =====
const panel = (() => {
const el = document.createElement('div');
el.style.cssText = [
'position:fixed',
'right:12px',
'bottom:12px',
'z-index:2147483647',
'padding:8px 10px',
'background:rgba(0,0,0,0.65)',
'color:#fff',
'border-radius:8px',
'font-size:12px',
'font-family:system-ui,Segoe UI,Roboto,Arial,sans-serif',
'pointer-events:auto'
].join(';');
el.textContent = T.panel + '0';
document.body.appendChild(el);
return el;
})();
function updatePanel() { panel.textContent = T.panel + collected.size; }
// ===== 简单帮助函数 =====
const sleep = ms => new Promise(r => setTimeout(r, ms));
// 返回滚动容器（尽量使用 document.scrollingElement）
function getScrollable() {
return document.scrollingElement || document.documentElement || document.body;
}
function scanLinks() {
const nodes = document.querySelectorAll(
'a#main-link.channel-link, ytd-channel-renderer a#main-link, ytd-channel-renderer a.yt-simple-endpoint'
);
const out = new Set();
for (const a of nodes) {
if (!a || !a.href) continue;
let href = a.href.split('?')[0]; // 去掉 query 参数
try {
// 找到 @ 开头的部分并解码
const atIndex = href.indexOf('/@');
if (atIndex !== -1) {
const before = href.slice(0, atIndex + 2); // 包含 "/@"
const after = href.slice(atIndex + 2); // 之后的 handle
try {
const decoded = decodeURIComponent(after);
href = before + decoded;
} catch (e) {
// 解码失败则保留原始
}
}
} catch (e) {
// 忽略异常
}
out.add(href);
}
return Array.from(out);
}
// 主采集流程：每轮滚动到底，等待，滚动一次微动，再等待，扫描新链接
async function collectOnceRound() {
const container = getScrollable();
// 滚到底（平滑或瞬时均可）
try {
container.scrollTo({ top: container.scrollHeight, behavior: 'smooth' });
} catch (e) {
try { container.scrollTop = container.scrollHeight; } catch (e) { }
}
await sleep(AFTER_SCROLL_WAIT_MS);
// 再尝试微微滚动一次以触发可能需要的额外加载
try {
// 微动：若能用 scrollBy 就用；否则直接设置 scrollTop
if (typeof container.scrollBy === 'function') {
container.scrollBy(0, 50);
} else {
container.scrollTop = Math.min(container.scrollHeight, (container.scrollTop || 0) + 50);
}
} catch (e) { }
await sleep(SECOND_TRY_WAIT_MS);
// 扫描并加入
const found = scanLinks();
found.forEach(h => collected.add(h));
updatePanel();
return found.length;
}
// 外部可调用的启动函数
async function startCollect() {
if (running) {
console.warn(T.alreadyRunning);
return alert(T.alreadyRunning);
}
running = true;
stopRequested = false;
collected.clear();
updatePanel();
// 初次扫描（页面已渲染的）
scanLinks().forEach(h => collected.add(h));
updatePanel();
let rounds = 0;
while (!stopRequested && rounds < MAX_ROUNDS) {
rounds++;
const before = collected.size;
const addedCount = await collectOnceRound();
const after = collected.size;
// 若本轮没有实际新增，可继续下一轮，直到达到 MAX_ROUNDS
if (after > before) {
// 有新增：继续（有时需要多轮加载）
} else {
// 无新增
}
}
running = false;
alert(T.done(collected.size, rounds));
}
function stopCollect() {
stopRequested = true;
}
// 菜单项
GM_registerMenuCommand(T.start, startCollect);
GM_registerMenuCommand(T.stop, stopCollect);
GM_registerMenuCommand(zh ? '复制到剪贴板' : 'Copy to clipboard', () => {
const text = Array.from(collected).join('\n');
try {
GM_setClipboard(text);
alert(T.copied);
} catch (e) {
// 回退：使用 clipboard API（部分环境受限）
navigator.clipboard?.writeText(text).then(() => alert(T.copied), () => alert('Clipboard failed'));
}
});
GM_registerMenuCommand(zh ? '下载 TXT' : 'Download TXT', () => {
const blob = new Blob([Array.from(collected).join('\n')], { type: 'text/plain' });
const url = URL.createObjectURL(blob);
try {
GM_download({ url, name: 'youtube_channels.txt', saveAs: true });
alert(T.downloaded);
} catch (e) {
// 回退：用 a 标签下载
const a = document.createElement('a');
a.href = url;
a.download = 'youtube_channels.txt';
document.body.appendChild(a);
a.click();
a.remove();
URL.revokeObjectURL(url);
alert(T.downloaded);
}
});
// 页面卸载时清理面板
window.addEventListener('beforeunload', () => { try { panel.remove(); } catch (e) { } });
// 如需自动开始（可注释掉）： startCollect();
})();