455 lines
14 KiB
HTML
455 lines
14 KiB
HTML
<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
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<title>Live Catalog - 树形直播目录</title>
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<!-- HLS.js 用于播放 .m3u8 流 -->
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<script src="/static/js/hls.min.js"></script>
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<style>
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
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background: #f0f2f5;
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height: 100vh;
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overflow: hidden;
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}
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/* 主布局 */
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.app {
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display: flex;
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height: 100vh;
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width: 100%;
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}
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/* 左侧树形菜单 */
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.sidebar {
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width: 300px;
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background: #fff;
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border-right: 1px solid #e8e8e8;
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display: flex;
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flex-direction: column;
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box-shadow: 2px 0 8px rgba(0,0,0,0.02);
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overflow: auto;
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}
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.sidebar-header {
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padding: 16px 20px;
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background: #fafafa;
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border-bottom: 1px solid #e8e8e8;
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font-weight: 600;
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font-size: 16px;
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color: #1f2f3d;
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}
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.tree-container {
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flex: 1;
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overflow-y: auto;
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padding: 12px 0;
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}
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/* 树形结构样式 */
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.tree {
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list-style: none;
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margin: 0;
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padding-left: 0;
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}
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.tree-node {
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list-style: none;
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margin: 0;
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padding: 0;
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position: relative;
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}
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.tree-node-content {
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display: flex;
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align-items: center;
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padding: 8px 12px 8px 20px;
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cursor: pointer;
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transition: background 0.2s;
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font-size: 14px;
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color: #2c3e50;
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border-radius: 4px;
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margin: 2px 8px;
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}
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.tree-node-content:hover {
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background-color: #f5f7fa;
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}
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.tree-node-content.active {
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background-color: #e6f7ff;
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color: #1890ff;
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font-weight: 500;
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}
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/* 展开/折叠图标 */
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.expand-icon {
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display: inline-flex;
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align-items: center;
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justify-content: center;
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width: 20px;
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height: 20px;
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margin-right: 8px;
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font-size: 12px;
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color: #8c8c8c;
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transition: transform 0.2s;
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}
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.expand-icon.expanded {
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transform: rotate(90deg);
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}
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.node-name {
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flex: 1;
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}
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/* 加载中指示器 */
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.loading-icon {
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display: inline-block;
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width: 14px;
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height: 14px;
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margin-right: 8px;
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border: 2px solid #ddd;
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border-top-color: #1890ff;
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border-radius: 50%;
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animation: spin 0.6s linear infinite;
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}
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@keyframes spin {
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to { transform: rotate(360deg); }
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}
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/* 子节点容器 */
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.children {
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list-style: none;
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padding-left: 28px;
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margin: 0;
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display: none;
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}
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.children.show {
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display: block;
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}
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/* 右侧视频区域 */
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.video-area {
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flex: 1;
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background: #141414;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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position: relative;
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overflow: hidden;
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}
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#video-container {
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width: 100%;
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height: 100%;
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display: flex;
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align-items: center;
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justify-content: center;
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background: #000;
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}
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video {
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max-width: 100%;
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max-height: 100%;
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width: auto;
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height: auto;
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background: black;
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}
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.placeholder {
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color: #ccc;
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font-size: 16px;
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text-align: center;
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padding: 20px;
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}
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/* 响应式小屏 */
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@media (max-width: 768px) {
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.sidebar {
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width: 260px;
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}
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}
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</style>
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</head>
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<body>
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<div class="app">
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<div class="sidebar">
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<div class="sidebar-header">
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📺 直播目录
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</div>
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<div class="tree-container">
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<ul class="tree" id="tree-root">
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<!-- 根节点会动态渲染到这里 -->
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<li class="tree-node loading-placeholder" style="padding: 12px; text-align: center; color: #999;">加载中...</li>
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</ul>
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</div>
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</div>
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<div class="video-area">
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<div id="video-container">
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<div class="placeholder">👈 从左侧选择一个直播源</div>
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</div>
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</div>
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</div>
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<script>
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// API 基础路径（与后端同源）
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const API_BASE = '/api';
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// 全局状态
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let currentVideoNode = null; // 当前播放的节点对象
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let hls = null; // HLS 实例
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// 缓存已加载的子节点数据: { parentId: [childrenNodes] }
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const childrenCache = new Map();
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// 获取根节点
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async function fetchRoots() {
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try {
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const res = await fetch(`${API_BASE}/roots`);
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if (!res.ok) throw new Error(`HTTP ${res.status}`);
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return await res.json();
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} catch (err) {
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console.error('获取根节点失败:', err);
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return [];
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}
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}
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// 获取指定节点的子节点
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async function fetchChildren(parentId) {
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// 检查缓存
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if (childrenCache.has(parentId)) {
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return childrenCache.get(parentId);
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}
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try {
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const res = await fetch(`${API_BASE}/children/${parentId}`);
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if (!res.ok) throw new Error(`HTTP ${res.status}`);
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const children = await res.json();
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childrenCache.set(parentId, children);
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return children;
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} catch (err) {
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console.error(`获取节点 ${parentId} 的子节点失败:`, err);
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return [];
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}
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}
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// 获取节点详情（这里主要用来获取视频流地址，但也可以直接用子节点数据，不过为符合 API 设计，单独调用 stream 接口）
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async function fetchStreamUrl(nodeId) {
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try {
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const res = await fetch(`${API_BASE}/stream/${nodeId}`);
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if (!res.ok) throw new Error(`HTTP ${res.status}`);
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const data = await res.json();
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return data.url;
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} catch (err) {
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console.error(`获取节点 ${nodeId} 的视频地址失败:`, err);
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return null;
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}
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}
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// 播放视频
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async function playVideo(node) {
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if (!node || !node.is_leaf) return;
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// 显示加载占位
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const container = document.getElementById('video-container');
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container.innerHTML = '<div class="placeholder">📡 正在加载直播流...</div>';
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// 获取流地址
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const streamUrl = await fetchStreamUrl(node.id);
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if (!streamUrl) {
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container.innerHTML = '<div class="placeholder">❌ 无法获取视频地址，请稍后重试</div>';
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return;
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}
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// 清理旧播放器
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if (hls) {
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hls.destroy();
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hls = null;
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}
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// 创建 video 元素
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const video = document.createElement('video');
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video.controls = true;
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video.autoplay = true;
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video.style.width = '100%';
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video.style.height = '100%';
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video.style.objectFit = 'contain';
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container.innerHTML = '';
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container.appendChild(video);
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// 判断是否 HLS 流
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if (Hls.isSupported() && streamUrl.includes('.m3u8')) {
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hls = new Hls();
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hls.loadSource(streamUrl);
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hls.attachMedia(video);
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hls.on(Hls.Events.MANIFEST_PARSED, () => {
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video.play().catch(e => console.warn('自动播放被阻止:', e));
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});
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hls.on(Hls.Events.ERROR, (event, data) => {
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console.error('HLS 错误:', data);
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container.innerHTML = '<div class="placeholder">⚠️ 直播流播放失败，请检查地址或网络</div>';
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});
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} else if (video.canPlayType('application/vnd.apple.mpegurl') && streamUrl.includes('.m3u8')) {
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// 原生支持 HLS（Safari）
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video.src = streamUrl;
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video.addEventListener('loadedmetadata', () => {
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video.play().catch(e => console.warn('自动播放被阻止:', e));
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});
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} else {
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// 非 HLS 直接播放（如 mp4）
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video.src = streamUrl;
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video.addEventListener('error', () => {
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container.innerHTML = '<div class="placeholder">❌ 视频无法播放，格式可能不支持</div>';
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});
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}
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currentVideoNode = node;
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}
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// 渲染树节点（递归方式，但为了动态添加子节点，我们只渲染当前层的 ul）
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// 核心思路：为每个节点生成一个 <li>，内部包含 .tree-node-content 和一个 .children 容器
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// 点击节点时，如果已经有 .children 内容则切换显示；否则加载子节点并填充
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async function renderTree() {
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const rootContainer = document.getElementById('tree-root');
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const roots = await fetchRoots();
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if (!roots.length) {
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rootContainer.innerHTML = '<li class="tree-node" style="padding: 12px; text-align: center; color: #999;">暂无数据</li>';
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return;
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}
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// 清空并重新构建根节点
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rootContainer.innerHTML = '';
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for (const node of roots) {
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const li = createTreeNodeElement(node);
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rootContainer.appendChild(li);
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}
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}
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// 创建单个树节点的 DOM 元素（不含子节点，子节点容器为空）
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function createTreeNodeElement(node) {
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const li = document.createElement('li');
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li.className = 'tree-node';
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li.dataset.id = node.id;
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li.dataset.isLeaf = node.is_leaf;
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// 内容包装器
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const contentDiv = document.createElement('div');
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contentDiv.className = 'tree-node-content';
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if (!node.is_leaf) {
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// 非叶子节点：带展开图标
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const iconSpan = document.createElement('span');
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iconSpan.className = 'expand-icon';
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iconSpan.innerHTML = '▶'; // 初始向右，展开时旋转
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iconSpan.style.display = 'inline-block';
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contentDiv.appendChild(iconSpan);
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} else {
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// 叶子节点占位空白
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const placeholder = document.createElement('span');
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placeholder.style.width = '28px';
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placeholder.style.display = 'inline-block';
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contentDiv.appendChild(placeholder);
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}
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const nameSpan = document.createElement('span');
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nameSpan.className = 'node-name';
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nameSpan.textContent = node.name;
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contentDiv.appendChild(nameSpan);
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li.appendChild(contentDiv);
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// 子节点容器
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const childrenUl = document.createElement('ul');
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childrenUl.className = 'children';
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li.appendChild(childrenUl);
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// 绑定点击事件（在父容器上委托）
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contentDiv.addEventListener('click', (e) => {
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e.stopPropagation();
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onNodeClick(node, li, childrenUl, contentDiv);
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});
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return li;
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}
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// 处理节点点击
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async function onNodeClick(node, li, childrenUl, contentDiv) {
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// 如果是叶子节点：播放视频
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if (node.is_leaf) {
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// 高亮当前选中的节点
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clearActiveHighlight();
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contentDiv.classList.add('active');
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await playVideo(node);
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return;
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}
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// 非叶子节点：展开/折叠逻辑
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const isExpanded = childrenUl.classList.contains('show');
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if (isExpanded) {
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// 折叠
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childrenUl.classList.remove('show');
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const icon = contentDiv.querySelector('.expand-icon');
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if (icon) icon.classList.remove('expanded');
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} else {
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// 展开：检查是否已加载子节点
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if (childrenUl.children.length === 0) {
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// 显示加载动画
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const loadingSpan = document.createElement('span');
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loadingSpan.className = 'loading-icon';
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loadingSpan.style.marginLeft = '8px';
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contentDiv.appendChild(loadingSpan);
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const children = await fetchChildren(node.id);
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contentDiv.removeChild(loadingSpan);
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if (children && children.length) {
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for (const child of children) {
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const childLi = createTreeNodeElement(child);
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childrenUl.appendChild(childLi);
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}
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} else {
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// 无子节点：可显示“暂无子节点”提示
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const emptyMsg = document.createElement('li');
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emptyMsg.textContent = '（暂无下级）';
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emptyMsg.style.padding = '6px 12px';
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emptyMsg.style.color = '#999';
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emptyMsg.style.fontSize = '12px';
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childrenUl.appendChild(emptyMsg);
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}
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}
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// 展开并旋转图标
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childrenUl.classList.add('show');
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const icon = contentDiv.querySelector('.expand-icon');
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if (icon) icon.classList.add('expanded');
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}
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}
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// 清除所有高亮
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function clearActiveHighlight() {
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document.querySelectorAll('.tree-node-content.active').forEach(el => {
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el.classList.remove('active');
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});
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}
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// 初始化视频区域（可选：尝试自动播放需用户交互）
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function initVideoArea() {
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// 预留
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}
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// 启动
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(async function init() {
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await renderTree();
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initVideoArea();
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})();
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</script>
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</body>
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</html> |