generated from dellevin/template
658 lines
23 KiB
Dart
658 lines
23 KiB
Dart
import 'dart:convert';
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import 'package:flutter/material.dart';
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import 'package:flutter_inappwebview/flutter_inappwebview.dart';
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import '../../widgets/app_overlay.dart';
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/// 豆瓣WebView页面 - 用于抓取 影视/书籍/游戏 信息
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class DoubanWebViewPage extends StatefulWidget {
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final String url;
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/// 分类：movie / book / game
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final String category;
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/// 来源：douban / fanqie（番茄小说）
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final String source;
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const DoubanWebViewPage({
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super.key,
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required this.url,
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this.category = 'movie',
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this.source = 'douban',
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});
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@override
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State<DoubanWebViewPage> createState() => _DoubanWebViewPageState();
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}
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class _DoubanWebViewPageState extends State<DoubanWebViewPage> {
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InAppWebViewController? _controller;
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bool _isLoading = true;
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bool _isExtracting = false; // 防止重复提取
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String _titleFor() {
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if (widget.source == 'fanqie') return '番茄阅读';
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return switch (widget.category) {
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'book' => '豆瓣书籍',
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'game' => '豆瓣游戏',
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_ => '豆瓣影视',
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};
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}
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@override
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Widget build(BuildContext context) {
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final colors = Theme.of(context).colorScheme;
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return Scaffold(
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backgroundColor: colors.surface,
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appBar: AppBar(
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title: Text(_titleFor()),
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leading: _buildBackButton(),
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actions: [
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// 提取按钮 - 始终显示
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_buildActionButton(
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colors: colors,
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icon: Icons.auto_fix_high_outlined,
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onPressed: _showExtractedInfo,
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tooltip: '提取信息',
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),
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// 刷新按钮
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_buildActionButton(
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colors: colors,
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icon: Icons.refresh,
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onPressed: () => _controller?.reload(),
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tooltip: '刷新',
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),
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const SizedBox(width: 8),
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],
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),
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body: Stack(
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children: [
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InAppWebView(
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initialUrlRequest: URLRequest(url: WebUri(widget.url)),
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initialSettings: InAppWebViewSettings(
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javaScriptEnabled: true,
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),
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onWebViewCreated: (controller) {
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_controller = controller;
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},
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onLoadStart: (_, __) {
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if (mounted) {
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setState(() {
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_isLoading = true;
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});
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}
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},
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onLoadStop: (_, __) {
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if (mounted) {
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setState(() {
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_isLoading = false;
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});
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}
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},
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),
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// 加载指示器
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if (_isLoading) const Center(
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child: CircularProgressIndicator(),
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),
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],
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),
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);
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}
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/// 构建返回按钮
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Widget _buildBackButton() {
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return Container(
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margin: const EdgeInsets.symmetric(horizontal: 4, vertical: 8),
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decoration: BoxDecoration(
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color: Colors.black.withValues(alpha: 0.3),
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borderRadius: BorderRadius.circular(8),
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),
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child: Material(
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color: Colors.transparent,
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child: InkWell(
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onTap: () {
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// 停止加载并返回
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_controller?.loadUrl(
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urlRequest: URLRequest(url: WebUri('about:blank')));
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Navigator.pop(context);
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},
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borderRadius: BorderRadius.circular(8),
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child: Container(
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padding: const EdgeInsets.all(8),
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child: const Icon(Icons.arrow_back, color: Colors.white, size: 22),
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),
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),
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),
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);
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}
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/// 构建右上角操作按钮
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Widget _buildActionButton({
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required ColorScheme colors,
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required IconData icon,
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required VoidCallback onPressed,
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required String tooltip,
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}) {
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return Container(
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margin: const EdgeInsets.symmetric(horizontal: 4, vertical: 8),
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decoration: BoxDecoration(
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color: Colors.white.withValues(alpha: 0.9),
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borderRadius: BorderRadius.circular(8),
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),
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child: Material(
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color: Colors.transparent,
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child: InkWell(
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onTap: onPressed,
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borderRadius: BorderRadius.circular(8),
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child: Container(
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padding: const EdgeInsets.all(8),
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child: Icon(icon, color: colors.onSurface, size: 22),
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),
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),
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),
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);
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}
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/// 显示提取的信息对话框
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Future<void> _showExtractedInfo() async {
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// 先提取信息
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final info = await _extractInfo();
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if (info == null) return;
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final secondaryLabel = switch (widget.category) {
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'book' => '作者',
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'game' => '开发商',
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_ => '导演',
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};
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// 显示提取的信息
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if (mounted) {
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appDialog(
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context: context,
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builder: (ctx) {
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final colors = Theme.of(ctx).colorScheme;
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final isFanqie = widget.source == 'fanqie';
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final rows = isFanqie
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? <Widget>[
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_buildInfoRow(colors, '书名', info['title']?.toString() ?? '未提取到'),
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_buildInfoRow(colors, '作者', info['author']?.toString() ?? '未提取到'),
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_buildInfoRow(colors, '类型', info['genres']?.toString() ?? '未提取到'),
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if (info['summary'] != null)
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_buildInfoRow(colors, '简介', _truncate(info['summary'])),
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]
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: <Widget>[
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_buildInfoRow(colors, '标题', info['title']?.toString() ?? '未提取到'),
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_buildInfoRow(colors, '评分', info['rating']?.toString() ?? '未提取到'),
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_buildInfoRow(colors, secondaryLabel, info['director']?.toString() ?? '未提取到'),
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_buildInfoRow(colors, '类型', info['genres']?.toString() ?? '未提取到'),
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_buildInfoRow(colors, '日期', info['releaseDate']?.toString() ?? '未提取到'),
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if (info['summary'] != null)
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_buildInfoRow(colors, '简介', _truncate(info['summary'])),
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];
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return AlertDialog(
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backgroundColor: colors.surface,
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
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title: Text(
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'提取的信息',
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style: TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.w600,
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color: colors.onSurface,
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),
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),
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content: SingleChildScrollView(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: rows,
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),
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),
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actions: [
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TextButton(
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onPressed: () => Navigator.pop(ctx),
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child: Text(
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'取消',
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style: TextStyle(color: colors.onSurface.withValues(alpha: 0.4)),
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),
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),
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TextButton(
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onPressed: () {
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Navigator.pop(ctx);
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Navigator.pop(context, info);
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},
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child: Text(
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'使用此信息',
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style: TextStyle(
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color: colors.onSurface, fontWeight: FontWeight.w600),
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),
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),
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],
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);
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},
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);
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}
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}
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/// 构建信息行
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Widget _buildInfoRow(ColorScheme colors, String label, String value) {
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return Padding(
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padding: const EdgeInsets.only(bottom: 8),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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SizedBox(
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width: 64,
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child: Text(
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label,
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style: TextStyle(
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fontSize: 14,
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color: colors.onSurface.withValues(alpha: 0.4),
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),
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),
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),
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Expanded(
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child: Text(
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value,
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style: TextStyle(
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fontSize: 14,
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color: colors.onSurface,
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),
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),
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),
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],
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),
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);
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}
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/// 提取信息（按分类选择抓取脚本）
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Future<Map<String, dynamic>?> _extractInfo() async {
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// 检查是否已提取过，避免重复点击
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if (_isExtracting || _controller == null) return null;
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try {
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_isExtracting = true;
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// 显示加载提示
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appDialog(
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context: context,
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barrierDismissible: false,
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builder: (dialogContext) => const Center(
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child: CircularProgressIndicator(),
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),
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);
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// 执行JavaScript代码提取页面信息
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final result = await _controller!.evaluateJavascript(source: _scriptFor(widget.source));
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// 关闭加载提示
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if (mounted) Navigator.pop(context);
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// 解析提取的信息
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// evaluateJavascript 返回 JS 值，JSON.stringify 的结果是字符串
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final String jsonStr = result?.toString() ?? '';
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if (jsonStr.isEmpty) return null;
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// result 是 JSON.stringify 的输出，可能带外层引号
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final String cleanJson = jsonStr.startsWith('"') && jsonStr.endsWith('"')
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? jsonDecode(jsonStr) as String
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: jsonStr;
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final Map<String, dynamic> movieInfo = jsonDecode(cleanJson) as Map<String, dynamic>;
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return movieInfo;
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} catch (e) {
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// 关闭加载提示
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if (mounted) Navigator.pop(context);
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('提取信息失败: $e')),
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);
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}
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return null;
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} finally {
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_isExtracting = false;
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}
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}
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/// 截断长文本用于信息预览
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String _truncate(Object? v) {
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final s = v?.toString() ?? '';
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return s.length > 100 ? '${s.substring(0, 100)}...' : s;
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}
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}
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/// 按来源/分类返回对应的抓取脚本
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String _scriptFor(String source) {
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return switch (source) {
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'fanqie' => _fanqieScript,
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'book' => _bookScript,
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'game' => _gameScript,
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_ => _movieScript,
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};
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}
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/// 影视抓取脚本（移动版豆瓣 subject 页）
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const String _movieScript = r'''
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(function() {
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const info = {};
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// 获取标题 - 移动版页面
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const titleEl = document.querySelector('.sub-title');
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info.title = titleEl ? titleEl.textContent.trim() : '';
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// 获取年份 - 从 original-title 中提取
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const originalTitleEl = document.querySelector('.sub-original-title');
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if (originalTitleEl) {
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const yearMatch = originalTitleEl.textContent.match(/\((\d{4})\)/);
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info.year = yearMatch ? yearMatch[1] : '';
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} else {
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info.year = '';
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}
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// 获取封面图 - 从 sub-cover 中的 img 标签获取
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const coverEl = document.querySelector('.sub-cover img');
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if (coverEl) {
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let coverUrl = coverEl.src;
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// 将 webp 转换为 jpg 格式，提高兼容性
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if (coverUrl && coverUrl.includes('.webp')) {
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coverUrl = coverUrl.replace('.webp', '.jpg');
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}
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info.coverUrl = coverUrl;
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} else {
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info.coverUrl = '';
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}
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// 获取评分 - 移动版可能在 mark-item 中
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const ratingEl = document.querySelector('.score-num')
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|| document.querySelector('.rating-num')
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|| document.querySelector('.score');
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info.rating = ratingEl ? ratingEl.textContent.trim() : '';
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// 获取导演 - 从演职员列表中找
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const directorEl = document.querySelector('.movie-celebrities .item__celebrity .role');
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if (directorEl && directorEl.textContent.includes('导演')) {
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const nameEl = directorEl.closest('.item__celebrity').querySelector('.name');
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info.director = nameEl ? nameEl.textContent.trim() : '';
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} else {
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info.director = '';
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}
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// 获取编剧 - 从演职员列表中找（匹配"编剧"或"剧本"）
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const writerEls = document.querySelectorAll('.movie-celebrities .item__celebrity');
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const writers = [];
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writerEls.forEach(el => {
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const roleEl = el.querySelector('.role');
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if (roleEl && (roleEl.textContent.includes('编剧') || roleEl.textContent.includes('剧本'))) {
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const nameEl = el.querySelector('.name');
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if (nameEl) writers.push(nameEl.textContent.trim());
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}
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});
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info.writers = writers;
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// 获取主演- 从演职员列表中找前5个
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const actorEls = document.querySelectorAll('.movie-celebrities .item__celebrity');
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const actors = [];
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actorEls.forEach(el => {
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const roleEl = el
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.querySelector('.role');
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if (roleEl && (
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roleEl.textContent.includes('配音') ||
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roleEl.textContent.includes('主演') ||
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roleEl.textContent.includes('演员') ||
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roleEl.textContent.includes('参演') ||
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roleEl.textContent.includes('饰')
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)) {
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const nameEl = el.querySelector('.name');
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if (nameEl) actors.push(nameEl.textContent.trim());
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}
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});
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info.actors = actors;
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// 获取类型 - 从 sub-meta 或标签中提取
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const metaEl = document.querySelector('.sub-meta');
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if (metaEl) {
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const metaText = metaEl.textContent;
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const parts = metaText.split('/').map(s => s.trim());
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// 过滤出类型（通常是中文，不是日期，不是时长）
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info.genres = parts.filter(p =>
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p && !p.match(/^\d{4}/) && !p.includes('分钟') && !p.includes('上映')
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).join(',');
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} else {
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info.genres = '';
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}
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// 获取上映日期
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if (metaEl) {
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const dateMatch = metaEl.textContent.match(/(\d{4}-\d{2}-\d{2})/);
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info.releaseDate = dateMatch ? dateMatch[1] : '';
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} else {
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info.releaseDate = '';
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}
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// 获取简介
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const summaryEl = document.querySelector('.subject-intro p');
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if (summaryEl) {
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info.summary = summaryEl.textContent.trim().substring(0, 500);
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} else {
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info.summary = '';
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}
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// 获取别名 - 从 original-title 中提取（去掉年份）
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if (originalTitleEl) {
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const fullText = originalTitleEl.textContent.trim();
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info.alternateTitles = [fullText.replace(/\s*\(\d{4}\)\s*$/, '')];
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} else {
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info.alternateTitles = [];
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}
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return JSON.stringify(info);
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})()
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''';
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/// 书籍抓取脚本（豆瓣 subject 页，兼容移动版/网页版）
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const String _bookScript = r'''
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(function() {
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const info = {};
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// 标题（多种结构回退）
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const titleEl = document.querySelector('.sub-title')
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|| document.querySelector('h1[property="v:itemreviewed"]')
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|| document.querySelector('.title h1')
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|| document.querySelector('h1');
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info.title = titleEl ? titleEl.textContent.trim() : '';
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// 封面（多种结构回退）
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const coverEl = document.querySelector('.sub-cover img')
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|| document.querySelector('#mainpic img')
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|| document.querySelector('.nbg img')
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|| document.querySelector('.pic img');
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if (coverEl) {
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let coverUrl = coverEl.src;
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if (coverUrl && coverUrl.includes('.webp')) {
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coverUrl = coverUrl.replace('.webp', '.jpg');
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}
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info.coverUrl = coverUrl;
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} else {
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info.coverUrl = '';
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}
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// 评分
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const ratingEl = document.querySelector('.score-num')
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|| document.querySelector('.rating-num')
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|| document.querySelector('.score')
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|| document.querySelector('.rating_self strong')
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|| document.querySelector('.ll.rating_num');
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info.rating = ratingEl ? ratingEl.textContent.trim() : '';
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// 简介（网页版为 section-intro_desc，另加多级回退）
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const summaryEl = document.querySelector('.section-intro_desc')
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|| document.querySelector('.subject-intro p')
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|| document.querySelector('#link-report .intro')
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|| document.querySelector('.intro');
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info.summary = summaryEl ? summaryEl.textContent.trim().substring(0, 1000) : '';
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// 副标题/别名
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const originalTitleEl = document.querySelector('.sub-original-title')
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|| document.querySelector('h2');
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info.alternateTitles = originalTitleEl ? [originalTitleEl.textContent.trim()] : [];
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// 元信息：作者 / 译者 / 出版社 / 出版日期 / ISBN / 类型
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const metaEl = document.querySelector('.sub-meta')
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|| document.querySelector('#info')
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|| document.querySelector('.pub');
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const metaText = metaEl ? metaEl.textContent.replace(/\s+/g, ' ').trim() : '';
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info.director = metaText; // 暂存整行，供解析
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info.author = '';
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info.translator = '';
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info.publisher = '';
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info.releaseDate = '';
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info.isbn = '';
|
||
info.genres = '';
|
||
|
||
if (metaText) {
|
||
// 作者
|
||
const authorMatch = metaText.match(/作者[:\s]*([^\/\n]+?)(?:\s*译者|\s*出版社|\s*出版年|\s*页数|\s*定价|\s*装帧|\s*丛书|\s*ISBN|$)/);
|
||
if (authorMatch) info.author = authorMatch[1].trim();
|
||
|
||
// 译者
|
||
const translatorMatch = metaText.match(/译者[:\s]*([^\/\n]+?)(?:\s*出版社|\s*出版年|\s*页数|\s*定价|\s*装帧|\s*丛书|\s*ISBN|$)/);
|
||
if (translatorMatch) info.translator = translatorMatch[1].trim();
|
||
|
||
// 出版社
|
||
const publisherMatch = metaText.match(/出版社[:\s]*([^\/\n]+?)(?:\s*出版年|\s*页数|\s*定价|\s*装帧|\s*丛书|\s*ISBN|$)/);
|
||
if (publisherMatch) info.publisher = publisherMatch[1].trim();
|
||
|
||
// 出版日期 / 年份
|
||
const dateMatch = metaText.match(/\d{4}-\d{1,2}(-\d{1,2})?/);
|
||
if (dateMatch) info.releaseDate = dateMatch[0];
|
||
|
||
// ISBN
|
||
const isbnMatch = metaText.match(/ISBN[:\s]*([\dXx-]+)/);
|
||
if (isbnMatch) info.isbn = isbnMatch[1].trim();
|
||
|
||
// 类型标签
|
||
const tagEls = document.querySelectorAll('.sub-tags a, .tags a, .tagCrumb a');
|
||
const tags = [];
|
||
tagEls.forEach(el => {
|
||
const t = el.textContent.trim();
|
||
if (t) tags.push(t);
|
||
});
|
||
info.genres = tags.join(',');
|
||
}
|
||
|
||
return JSON.stringify(info);
|
||
})()
|
||
''';
|
||
|
||
/// 游戏抓取脚本（豆瓣 game subject 页 card 结构）
|
||
const String _gameScript = r'''
|
||
(function() {
|
||
const info = {};
|
||
|
||
// 标题：card 内的 title
|
||
const titleEl = document.querySelector('.card h1.title')
|
||
|| document.querySelector('h1.title')
|
||
|| document.querySelector('.sub-title')
|
||
|| document.querySelector('h1[property="v:itemreviewed"]');
|
||
info.title = titleEl ? titleEl.textContent.trim() : '';
|
||
|
||
// 封面：subject-info 内的 cover 图
|
||
const coverEl = document.querySelector('.subject-info .cover')
|
||
|| document.querySelector('.sub-cover img')
|
||
|| document.querySelector('#mainpic img');
|
||
if (coverEl) {
|
||
let coverUrl = coverEl.src;
|
||
if (coverUrl && coverUrl.includes('.webp')) {
|
||
coverUrl = coverUrl.replace('.webp', '.jpg');
|
||
}
|
||
info.coverUrl = coverUrl;
|
||
} else {
|
||
info.coverUrl = '';
|
||
}
|
||
|
||
// 评分：subject-info 内 rating 的 strong
|
||
const ratingEl = document.querySelector('.subject-info .rating strong')
|
||
|| document.querySelector('.score-num')
|
||
|| document.querySelector('.rating-num');
|
||
info.rating = ratingEl ? ratingEl.textContent.trim() : '';
|
||
|
||
// 简介：subject-intro 内 bd 的 p
|
||
const summaryEl = document.querySelector('.subject-intro .bd p')
|
||
|| document.querySelector('.section-intro_desc')
|
||
|| document.querySelector('.subject-intro p')
|
||
|| document.querySelector('.intro');
|
||
info.summary = summaryEl ? summaryEl.textContent.trim().substring(0, 1000) : '';
|
||
|
||
// 元信息：subject-info 内 meta（斜杠分隔：类型 / 平台 / 发行日期）
|
||
const metaEl = document.querySelector('.subject-info .meta')
|
||
|| document.querySelector('.sub-meta');
|
||
const metaText = metaEl ? metaEl.textContent.replace(/\s+/g, ' ').trim() : '';
|
||
info.director = metaText; // 暂存整行，供解析
|
||
info.developer = '';
|
||
info.platforms = '';
|
||
info.releaseDate = '';
|
||
info.genres = '';
|
||
|
||
if (metaText) {
|
||
// 发行日期（通常在最末尾，如 "2020-07-08 发行"）
|
||
const dateMatch = metaText.match(/\d{4}-\d{1,2}(-\d{1,2})?/);
|
||
if (dateMatch) info.releaseDate = dateMatch[0];
|
||
|
||
// 按 / 切分，过滤空段和日期段
|
||
const parts = metaText.split('/').map(s => s.trim()).filter(s => s && !s.match(/^\d{4}/));
|
||
const platformNames = ['pc','ps4','ps5','psp','psv','ps3','ps2','xbox one','xbox series','xsx','xss','xbox 360','switch','wii u','wii','3ds','nds','nes','snes','steam','epic','itunes','ios','android','google play','itunes store','web','街机','街机盒'];
|
||
const genres = [];
|
||
const platforms = [];
|
||
parts.forEach(p => {
|
||
const lower = p.toLowerCase();
|
||
if (platformNames.some(n => lower.includes(n))) {
|
||
platforms.push(p);
|
||
} else {
|
||
genres.push(p);
|
||
}
|
||
});
|
||
|
||
// 孤立的日期年份（如 "2020"）单列给 releaseDate
|
||
if (!info.releaseDate) {
|
||
const yearMatch = metaText.match(/\b(19|20)\d{2}\b/);
|
||
if (yearMatch) info.releaseDate = yearMatch[0] + '-01-01';
|
||
}
|
||
|
||
info.genres = genres.join(',');
|
||
info.platforms = platforms.join(',');
|
||
}
|
||
|
||
return JSON.stringify(info);
|
||
})()
|
||
''';
|
||
|
||
/// 番茄小说抓取脚本（fanjienovel.com 书籍页）
|
||
const String _fanqieScript = r'''
|
||
(function() {
|
||
const info = {};
|
||
const q = (s) => { const el = document.querySelector(s); return el ? el.textContent.trim() : ''; };
|
||
|
||
// 书名
|
||
info.title = q('h1.info-name');
|
||
|
||
// 作者（如 "骁骑校 / 著"）
|
||
info.author = q('div.info-author');
|
||
|
||
// 封面
|
||
const coverEl = document.querySelector('img.page-header-img');
|
||
info.coverUrl = coverEl ? coverEl.src : '';
|
||
|
||
// 简介
|
||
const summaryEl = document.querySelector('.abstract-content-text p')
|
||
|| document.querySelector('.abstract-content-text')
|
||
|| document.querySelector('.abstract-content');
|
||
info.summary = summaryEl ? summaryEl.textContent.trim().substring(0, 1000) : '';
|
||
|
||
// 标签
|
||
const tagEls = document.querySelectorAll('.category-item');
|
||
const genres = [];
|
||
tagEls.forEach(el => { const t = el.textContent.trim(); if (t) genres.push(t); });
|
||
info.genres = genres.join(',');
|
||
|
||
return JSON.stringify(info);
|
||
})()
|
||
''';
|