generated from dellevin/template
778 lines
29 KiB
Dart
778 lines
29 KiB
Dart
import 'dart:convert';
|
||
import 'dart:io';
|
||
import 'package:flutter/material.dart';
|
||
import 'package:url_launcher/url_launcher.dart';
|
||
import 'package:http/http.dart' as http;
|
||
import 'package:path/path.dart' as p;
|
||
import 'package:provider/provider.dart';
|
||
import 'package:uuid/uuid.dart';
|
||
import '../../utils/server_config.dart';
|
||
import '../../utils/user_prefs.dart';
|
||
import '../../models/data_models.dart';
|
||
import '../../providers/app_provider.dart';
|
||
import '../../utils/image_path_helper.dart';
|
||
import '../../utils/toast_util.dart';
|
||
|
||
/// 书籍详情页 - 在线版
|
||
class BookDetailPage extends StatefulWidget {
|
||
final String bookId;
|
||
const BookDetailPage({super.key, required this.bookId});
|
||
|
||
@override
|
||
State<BookDetailPage> createState() => _BookDetailPageState();
|
||
}
|
||
|
||
class _BookDetailPageState extends State<BookDetailPage> {
|
||
Map<String, dynamic>? _data;
|
||
bool _loading = true;
|
||
String? _error;
|
||
Book? _localBook;
|
||
String? _catalog;
|
||
bool _catalogLoading = false;
|
||
int _currentTab = 0;
|
||
|
||
@override
|
||
void initState() {
|
||
super.initState();
|
||
_load();
|
||
}
|
||
|
||
String _resolveCoverUrl(String cover) {
|
||
if (cover.startsWith('http')) return cover;
|
||
return '${ServerConfig.vipBaseUrl}/mk_book$cover';
|
||
}
|
||
|
||
Future<void> _load() async {
|
||
final token = UserPrefs().bookSearchToken;
|
||
try {
|
||
final url = '${ServerConfig.vipBaseUrl}/api/book/detail?id=${widget.bookId}&token=$token';
|
||
final resp = await http.get(Uri.parse(url)).timeout(const Duration(seconds: 10));
|
||
if (!mounted) return;
|
||
if (resp.statusCode == 200) {
|
||
final json_ = json.decode(resp.body);
|
||
if (json_['code'] == 0 && json_['data'] != null) {
|
||
setState(() {
|
||
_data = json_['data'];
|
||
_loading = false;
|
||
});
|
||
_checkLocal();
|
||
_loadCatalog();
|
||
return;
|
||
}
|
||
}
|
||
setState(() {
|
||
_error = '加载失败';
|
||
_loading = false;
|
||
});
|
||
} catch (_) {
|
||
if (mounted) setState(() {
|
||
_error = '网络错误';
|
||
_loading = false;
|
||
});
|
||
}
|
||
}
|
||
|
||
void _checkLocal() {
|
||
final title = _data?['title'] ?? '';
|
||
if (title.toString().isEmpty) return;
|
||
final provider = context.read<AppProvider>();
|
||
final match = provider.books.where((b) => !b.isDeleted && b.title == title).toList();
|
||
if (match.isNotEmpty) {
|
||
setState(() => _localBook = match.first);
|
||
}
|
||
}
|
||
|
||
String _decodeText(List<int> bytes) {
|
||
if (bytes.length >= 2) {
|
||
// UTF-16 LE BOM: FF FE
|
||
if (bytes[0] == 0xFF && bytes[1] == 0xFE) {
|
||
final codes = <int>[];
|
||
for (var i = 2; i + 1 < bytes.length; i += 2) {
|
||
codes.add(bytes[i] | (bytes[i + 1] << 8));
|
||
}
|
||
return String.fromCharCodes(codes);
|
||
}
|
||
// UTF-16 BE BOM: FE FF
|
||
if (bytes[0] == 0xFE && bytes[1] == 0xFF) {
|
||
final codes = <int>[];
|
||
for (var i = 2; i + 1 < bytes.length; i += 2) {
|
||
codes.add((bytes[i] << 8) | bytes[i + 1]);
|
||
}
|
||
return String.fromCharCodes(codes);
|
||
}
|
||
}
|
||
// 无 BOM，按 UTF-16 LE 尝试（大部分中文 txt 是这种）
|
||
if (bytes.length >= 2 && bytes.length % 2 == 0) {
|
||
final codes = <int>[];
|
||
for (var i = 0; i + 1 < bytes.length; i += 2) {
|
||
codes.add(bytes[i] | (bytes[i + 1] << 8));
|
||
}
|
||
final text = String.fromCharCodes(codes);
|
||
// 检查解码结果是否包含大量不可打印字符（说明不是 UTF-16）
|
||
final printable = text.runes.where((r) => r >= 0x20 && r < 0xFFFF).length;
|
||
if (printable > text.length * 0.8) return text;
|
||
}
|
||
// fallback: UTF-8
|
||
try {
|
||
return utf8.decode(bytes);
|
||
} catch (_) {
|
||
return String.fromCharCodes(bytes);
|
||
}
|
||
}
|
||
|
||
Future<void> _loadCatalog() async {
|
||
final bookmark = _data?['bookmark'] ?? '';
|
||
if (bookmark.toString().isEmpty) return;
|
||
setState(() => _catalogLoading = true);
|
||
try {
|
||
final bookmarkStr = bookmark.toString();
|
||
final bookmarkUrl = bookmarkStr.startsWith('http')
|
||
? bookmarkStr
|
||
: '${ServerConfig.vipBaseUrl}/mk_book/$bookmarkStr';
|
||
final resp = await http.get(
|
||
Uri.parse(bookmarkUrl),
|
||
headers: {'Accept-Encoding': 'identity'},
|
||
).timeout(const Duration(seconds: 10));
|
||
if (!mounted) return;
|
||
if (resp.statusCode == 200) {
|
||
final bytes = resp.bodyBytes;
|
||
final text = _decodeText(bytes);
|
||
setState(() {
|
||
_catalog = text;
|
||
_catalogLoading = false;
|
||
});
|
||
return;
|
||
}
|
||
} catch (_) {}
|
||
if (mounted) setState(() => _catalogLoading = false);
|
||
}
|
||
|
||
Future<void> _addBook(String status) async {
|
||
final m = _data!;
|
||
final title = m['title'] ?? '';
|
||
final author = m['author'] ?? '';
|
||
final press = m['press'] ?? '';
|
||
final isbn = m['isbn'] ?? '';
|
||
final yearStr = m['publishedDate'] ?? '';
|
||
final cover = m['cover'] ?? '';
|
||
|
||
DateTime? publishDate;
|
||
if (yearStr.toString().isNotEmpty) {
|
||
publishDate = DateTime.tryParse('${yearStr}-01-01');
|
||
}
|
||
|
||
final bookId = const Uuid().v4();
|
||
String? coverPath;
|
||
|
||
if (cover.toString().isNotEmpty) {
|
||
try {
|
||
final coverUrl = _resolveCoverUrl(cover.toString());
|
||
final resp = await http.get(Uri.parse(coverUrl), headers: {
|
||
'User-Agent': 'Mozilla/5.0'
|
||
}).timeout(const Duration(seconds: 15));
|
||
if (resp.statusCode == 200 && resp.bodyBytes.length < 10 * 1024 * 1024) {
|
||
final fileName = 'cover_${DateTime.now().millisecondsSinceEpoch}.jpg';
|
||
final targetPath = await ImagePathHelper.instance.getBookCoverPath(bookId, fileName);
|
||
await ImagePathHelper.instance.ensureDirExists(p.dirname(targetPath));
|
||
await File(targetPath).writeAsBytes(resp.bodyBytes);
|
||
coverPath = targetPath;
|
||
}
|
||
} catch (_) {}
|
||
}
|
||
|
||
final book = Book(
|
||
id: bookId,
|
||
title: title.toString(),
|
||
coverPath: coverPath,
|
||
authors: _splitStr(author.toString()),
|
||
publisher: press.toString(),
|
||
isbn: isbn.toString(),
|
||
publishDate: publishDate,
|
||
status: status,
|
||
createdAt: DateTime.now(),
|
||
updatedAt: DateTime.now(),
|
||
);
|
||
|
||
if (!mounted) return;
|
||
final provider = context.read<AppProvider>();
|
||
await provider.addBook(book);
|
||
await provider.loadBooks();
|
||
|
||
if (mounted) {
|
||
setState(() {
|
||
_localBook = provider.books.firstWhere((b) => b.id == book.id);
|
||
});
|
||
ToastUtil.show(context, '已添加到${_statusLabel(status)}');
|
||
}
|
||
}
|
||
|
||
List<String> _splitStr(String s) => s
|
||
.split(RegExp(r'[,，/、]'))
|
||
.map((e) => e.trim())
|
||
.where((e) => e.isNotEmpty)
|
||
.toList();
|
||
|
||
String _statusLabel(String status) {
|
||
switch (status) {
|
||
case 'read':
|
||
return '已读';
|
||
case 'reading':
|
||
return '在读';
|
||
case 'want_to_read':
|
||
return '想读';
|
||
default:
|
||
return '';
|
||
}
|
||
}
|
||
|
||
void _showAddSheet() {
|
||
final colors = Theme.of(context).colorScheme;
|
||
showModalBottomSheet(
|
||
context: context,
|
||
backgroundColor: colors.surface,
|
||
shape: const RoundedRectangleBorder(
|
||
borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
|
||
builder: (ctx) => SafeArea(
|
||
child: Padding(
|
||
padding: const EdgeInsets.fromLTRB(16, 6, 16, 16),
|
||
child: Column(mainAxisSize: MainAxisSize.min, children: [
|
||
Center(
|
||
child: Container(
|
||
width: 36,
|
||
height: 4,
|
||
margin: const EdgeInsets.only(bottom: 14),
|
||
decoration: BoxDecoration(
|
||
color: colors.onSurface.withValues(alpha: 0.15),
|
||
borderRadius: BorderRadius.circular(2)))),
|
||
Text('添加到',
|
||
style: TextStyle(
|
||
fontSize: 15,
|
||
fontWeight: FontWeight.w600,
|
||
color: colors.onSurface)),
|
||
const SizedBox(height: 14),
|
||
_sheetItem(ctx, colors, Icons.check_circle_outline, '已读', 'read'),
|
||
_sheetItem(ctx, colors, Icons.play_circle_outline, '在读', 'reading'),
|
||
_sheetItem(ctx, colors, Icons.bookmark_outline, '想读', 'want_to_read'),
|
||
]),
|
||
),
|
||
),
|
||
);
|
||
}
|
||
|
||
Widget _sheetItem(BuildContext ctx, ColorScheme colors, IconData icon,
|
||
String label, String status) {
|
||
return InkWell(
|
||
onTap: () {
|
||
Navigator.pop(ctx);
|
||
_addBook(status);
|
||
},
|
||
borderRadius: BorderRadius.circular(10),
|
||
child: Container(
|
||
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 14),
|
||
margin: const EdgeInsets.only(bottom: 4),
|
||
child: Row(children: [
|
||
Icon(icon, size: 22, color: colors.onSurface.withValues(alpha: 0.6)),
|
||
const SizedBox(width: 12),
|
||
Text(label,
|
||
style: TextStyle(
|
||
fontSize: 14,
|
||
fontWeight: FontWeight.w500,
|
||
color: colors.onSurface)),
|
||
]),
|
||
),
|
||
);
|
||
}
|
||
|
||
// ── Build ──────────────────────────────────────────────
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
final colors = Theme.of(context).colorScheme;
|
||
return Scaffold(
|
||
backgroundColor: colors.surface,
|
||
floatingActionButton:
|
||
(!_loading && _error == null && _localBook == null && _data != null)
|
||
? FloatingActionButton(
|
||
onPressed: _showAddSheet,
|
||
backgroundColor: colors.primary,
|
||
child: Icon(Icons.add, color: colors.onPrimary))
|
||
: null,
|
||
body: _loading
|
||
? Center(child: CircularProgressIndicator(color: colors.primary, strokeWidth: 2))
|
||
: _error != null
|
||
? _buildError(colors)
|
||
: _buildBody(colors),
|
||
);
|
||
}
|
||
|
||
Widget _buildError(ColorScheme colors) {
|
||
return Center(
|
||
child: Column(
|
||
mainAxisAlignment: MainAxisAlignment.center,
|
||
children: [
|
||
Icon(Icons.error_outline, size: 48, color: colors.onSurface.withValues(alpha: 0.2)),
|
||
const SizedBox(height: 16),
|
||
Text(_error!, style: TextStyle(fontSize: 14, color: colors.onSurface.withValues(alpha: 0.4))),
|
||
const SizedBox(height: 16),
|
||
TextButton(
|
||
onPressed: () {
|
||
setState(() { _loading = true; _error = null; });
|
||
_load();
|
||
},
|
||
child: Text('重试', style: TextStyle(color: colors.primary))),
|
||
],
|
||
));
|
||
}
|
||
|
||
Widget _buildBody(ColorScheme colors) {
|
||
final m = _data!;
|
||
final cover = m['cover'] ?? '';
|
||
final title = m['title'] ?? '';
|
||
final author = m['author'] ?? '';
|
||
final press = m['press'] ?? '';
|
||
final isbn = m['isbn'] ?? '';
|
||
final year = m['publishedDate'] ?? '';
|
||
final pages = m['pagination'];
|
||
final coverUrl = cover.toString().isNotEmpty ? _resolveCoverUrl(cover.toString()) : '';
|
||
|
||
return NestedScrollView(
|
||
headerSliverBuilder: (context, _) => [
|
||
SliverToBoxAdapter(
|
||
child: Container(
|
||
color: colors.surface,
|
||
child: SafeArea(
|
||
bottom: false,
|
||
child: Column(children: [
|
||
Padding(
|
||
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
|
||
child: Row(children: [
|
||
GestureDetector(
|
||
onTap: () => Navigator.pop(context),
|
||
child: Container(
|
||
width: 36,
|
||
height: 36,
|
||
decoration: BoxDecoration(
|
||
color: colors.surfaceContainerHigh,
|
||
shape: BoxShape.circle),
|
||
child: Icon(Icons.arrow_back, size: 20, color: colors.onSurface)),
|
||
),
|
||
]),
|
||
),
|
||
Padding(
|
||
padding: const EdgeInsets.fromLTRB(16, 4, 16, 16),
|
||
child: Row(
|
||
crossAxisAlignment: CrossAxisAlignment.start,
|
||
children: [
|
||
ClipRRect(
|
||
borderRadius: BorderRadius.circular(10),
|
||
child: SizedBox(
|
||
width: 110,
|
||
height: 160,
|
||
child: coverUrl.isNotEmpty
|
||
? Image.network(coverUrl,
|
||
fit: BoxFit.cover,
|
||
errorBuilder: (_, __, ___) => _coverPlaceholder(colors))
|
||
: _coverPlaceholder(colors),
|
||
),
|
||
),
|
||
const SizedBox(width: 16),
|
||
Expanded(
|
||
child: Column(
|
||
crossAxisAlignment: CrossAxisAlignment.start,
|
||
children: [
|
||
Text(title, style: TextStyle(fontSize: 18, fontWeight: FontWeight.w700, color: colors.onSurface)),
|
||
if (author.toString().isNotEmpty) ...[
|
||
const SizedBox(height: 8),
|
||
Text(author, style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.6))),
|
||
],
|
||
if (press.toString().isNotEmpty) ...[
|
||
const SizedBox(height: 6),
|
||
Text(press, style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.45))),
|
||
],
|
||
if (year.toString().isNotEmpty) ...[
|
||
const SizedBox(height: 6),
|
||
Text('出版年份：$year', style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.4))),
|
||
],
|
||
if (isbn.toString().isNotEmpty) ...[
|
||
const SizedBox(height: 4),
|
||
Text('ISBN：$isbn', style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.4))),
|
||
],
|
||
if (pages != null && pages != 0) ...[
|
||
const SizedBox(height: 4),
|
||
Text('页数：$pages', style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.4))),
|
||
],
|
||
if (_localBook != null) ...[
|
||
const SizedBox(height: 10),
|
||
_buildLocalStatus(colors),
|
||
],
|
||
]),
|
||
),
|
||
]),
|
||
),
|
||
]),
|
||
),
|
||
),
|
||
),
|
||
// Tab 栏：吸顶
|
||
SliverPersistentHeader(
|
||
pinned: true,
|
||
delegate: _StickyTabBarDelegate(
|
||
child: Container(
|
||
decoration: BoxDecoration(
|
||
color: colors.surface,
|
||
border: Border(
|
||
bottom: BorderSide(color: colors.outlineVariant, width: 0.5))),
|
||
child: Row(children: [
|
||
_buildTabButton('基础信息', 0),
|
||
_buildTabButton('国图信息', 1),
|
||
_buildTabButton('网购地址', 2),
|
||
_buildTabButton('书籍目录', 3),
|
||
]),
|
||
),
|
||
),
|
||
),
|
||
],
|
||
body: _currentTab == 0
|
||
? _buildBasicInfo(colors)
|
||
: _currentTab == 1
|
||
? _buildOpacTab(colors)
|
||
: _currentTab == 2
|
||
? _buildOnlineTab(colors)
|
||
: _buildCatalogTab(colors),
|
||
);
|
||
}
|
||
|
||
Widget _buildTabButton(String label, int index) {
|
||
final colors = Theme.of(context).colorScheme;
|
||
final selected = _currentTab == index;
|
||
return GestureDetector(
|
||
onTap: () => setState(() => _currentTab = index),
|
||
child: Container(
|
||
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 11),
|
||
decoration: BoxDecoration(
|
||
border: Border(
|
||
bottom: BorderSide(
|
||
color: selected ? colors.primary : Colors.transparent,
|
||
width: 2))),
|
||
child: Text(label,
|
||
style: TextStyle(
|
||
fontSize: 13,
|
||
fontWeight: selected ? FontWeight.w600 : FontWeight.w400,
|
||
color: selected
|
||
? colors.primary
|
||
: colors.onSurface.withValues(alpha: 0.4))),
|
||
),
|
||
);
|
||
}
|
||
|
||
// ── 基础信息 Tab ──────────────────────────────────────────
|
||
|
||
Widget _buildBasicInfo(ColorScheme colors) {
|
||
final m = _data!;
|
||
final tags = m['tags'] ?? '';
|
||
final sub1 = m['sub1'] ?? '';
|
||
final sub2 = m['sub2'] ?? '';
|
||
|
||
return ListView(
|
||
padding: const EdgeInsets.fromLTRB(16, 14, 16, 40),
|
||
children: [
|
||
// 分类
|
||
_buildSectionTitle(colors, '分类', Icons.category_outlined),
|
||
const SizedBox(height: 6),
|
||
if (sub1.toString().isNotEmpty)
|
||
_buildChipWrap(colors, sub1.toString().split(RegExp(r'[,，]')))
|
||
else
|
||
_buildEmptyHint(colors),
|
||
const SizedBox(height: 16),
|
||
// 标签
|
||
_buildSectionTitle(colors, '标签', Icons.sell_outlined),
|
||
const SizedBox(height: 6),
|
||
if (tags.toString().isNotEmpty)
|
||
_buildChipWrap(colors, tags.toString().split(RegExp(r'[,，]')))
|
||
else
|
||
_buildEmptyHint(colors),
|
||
const SizedBox(height: 16),
|
||
// 内容简介
|
||
_buildSectionTitle(colors, '内容简介', Icons.article_outlined),
|
||
const SizedBox(height: 8),
|
||
if (sub2.toString().isNotEmpty)
|
||
Text(sub2.toString().replaceAll(RegExp(r'<[^>]*>'), ''),
|
||
style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.7), height: 1.7))
|
||
else
|
||
_buildEmptyHint(colors),
|
||
],
|
||
);
|
||
}
|
||
|
||
Widget _buildEmptyHint(ColorScheme colors) {
|
||
return Text('暂无该信息数据',
|
||
style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.3)));
|
||
}
|
||
|
||
// ── 国图信息 Tab ──────────────────────────────────────────
|
||
|
||
Widget _buildOpacTab(ColorScheme colors) {
|
||
final opacStr = _data?['opacInfo'];
|
||
Map<String, dynamic>? opac;
|
||
if (opacStr != null && opacStr.toString().isNotEmpty) {
|
||
try { opac = json.decode(opacStr.toString()); } catch (_) {}
|
||
}
|
||
if (opac == null) {
|
||
return Center(
|
||
child: Text('暂无国图信息',
|
||
style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.35))));
|
||
}
|
||
return ListView(
|
||
padding: const EdgeInsets.fromLTRB(16, 14, 16, 40),
|
||
children: [
|
||
_buildOpacInfo(colors, opac),
|
||
],
|
||
);
|
||
}
|
||
|
||
// ── 网购地址 Tab ──────────────────────────────────────────
|
||
|
||
Widget _buildOnlineTab(ColorScheme colors) {
|
||
final onlineStr = _data?['online'];
|
||
List<Map<String, dynamic>> links = [];
|
||
if (onlineStr != null && onlineStr.toString().isNotEmpty) {
|
||
try {
|
||
final list = json.decode(onlineStr.toString()) as List;
|
||
links = list.map((e) => e as Map<String, dynamic>).toList();
|
||
} catch (_) {}
|
||
}
|
||
if (links.isEmpty) {
|
||
return Center(
|
||
child: Text('暂无网购地址',
|
||
style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.35))));
|
||
}
|
||
return ListView.separated(
|
||
padding: const EdgeInsets.fromLTRB(16, 14, 16, 40),
|
||
itemCount: links.length,
|
||
separatorBuilder: (_, __) => const SizedBox(height: 8),
|
||
itemBuilder: (context, index) => _buildOnlineLink(colors, links[index]),
|
||
);
|
||
}
|
||
|
||
// ── 书籍目录 Tab ──────────────────────────────────────────
|
||
|
||
Widget _buildCatalogTab(ColorScheme colors) {
|
||
if (_catalogLoading) {
|
||
return Center(child: SizedBox(width: 20, height: 20, child: CircularProgressIndicator(strokeWidth: 2, color: colors.primary)));
|
||
}
|
||
if (_catalog == null || _catalog!.isEmpty) {
|
||
return Center(
|
||
child: Text('暂无目录信息',
|
||
style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.35))));
|
||
}
|
||
final lines = _catalog!.split('\n').where((l) => l.trim().isNotEmpty).toList();
|
||
return ListView.builder(
|
||
padding: const EdgeInsets.fromLTRB(16, 10, 16, 40),
|
||
itemCount: lines.length,
|
||
itemBuilder: (context, index) {
|
||
final text = lines[index].trim();
|
||
final level = _detectLevel(text);
|
||
final indent = level * 16.0;
|
||
final isMain = level == 0;
|
||
return Padding(
|
||
padding: EdgeInsets.only(left: 8 + indent, top: isMain ? 10 : 4, bottom: isMain ? 2 : 1),
|
||
child: Row(
|
||
crossAxisAlignment: CrossAxisAlignment.start,
|
||
children: [
|
||
if (isMain)
|
||
Container(
|
||
width: 3, height: 14,
|
||
margin: const EdgeInsets.only(right: 8, top: 2),
|
||
decoration: BoxDecoration(
|
||
color: colors.primary.withValues(alpha: 0.5),
|
||
borderRadius: BorderRadius.circular(1.5),
|
||
),
|
||
),
|
||
Expanded(
|
||
child: Text(text, style: TextStyle(
|
||
fontSize: isMain ? 13.5 : 12.5,
|
||
fontWeight: isMain ? FontWeight.w600 : FontWeight.w400,
|
||
color: isMain ? colors.onSurface.withValues(alpha: 0.85) : colors.onSurface.withValues(alpha: 0.55),
|
||
height: 1.4,
|
||
)),
|
||
),
|
||
],
|
||
),
|
||
);
|
||
},
|
||
);
|
||
}
|
||
|
||
// ── 通用组件 ──────────────────────────────────────────────
|
||
|
||
Widget _buildSectionTitle(ColorScheme colors, String title, IconData icon) {
|
||
return Row(
|
||
children: [
|
||
Icon(icon, size: 15, color: colors.primary.withValues(alpha: 0.7)),
|
||
const SizedBox(width: 6),
|
||
Text(title, style: TextStyle(fontSize: 14, fontWeight: FontWeight.w600, color: colors.onSurface)),
|
||
],
|
||
);
|
||
}
|
||
|
||
Widget _buildChipWrap(ColorScheme colors, List<String> items) {
|
||
return Wrap(
|
||
spacing: 6,
|
||
runSpacing: 6,
|
||
children: items.where((t) => t.trim().isNotEmpty).map((t) => Container(
|
||
padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
|
||
decoration: BoxDecoration(
|
||
color: colors.surfaceContainerHigh,
|
||
borderRadius: BorderRadius.circular(16),
|
||
border: Border.all(color: colors.outlineVariant, width: 0.5),
|
||
),
|
||
child: Text(t.trim(), style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.65))),
|
||
)).toList(),
|
||
);
|
||
}
|
||
|
||
Widget _buildOpacInfo(ColorScheme colors, Map<String, dynamic> opac) {
|
||
final items = <List<String>>[];
|
||
if (opac['title'] != null && opac['title'].toString().isNotEmpty) items.add(['题名', opac['title'].toString()]);
|
||
if (opac['authors'] != null) {
|
||
final authors = (opac['authors'] as List).map((e) => e.toString()).join('；');
|
||
if (authors.isNotEmpty) items.add(['作者', authors]);
|
||
}
|
||
if (opac['publisher'] != null && opac['publisher'].toString().isNotEmpty) items.add(['出版社', opac['publisher'].toString()]);
|
||
if (opac['pubdate'] != null && opac['pubdate'].toString().isNotEmpty) items.add(['出版日期', opac['pubdate'].toString()]);
|
||
if (opac['isbn'] != null && opac['isbn'].toString().isNotEmpty) items.add(['ISBN', opac['isbn'].toString()]);
|
||
if (opac['clc'] != null && opac['clc'].toString().isNotEmpty) items.add(['中图分类号', opac['clc'].toString()]);
|
||
if (opac['tags'] != null && opac['tags'].toString().isNotEmpty) items.add(['主题词', opac['tags'].toString()]);
|
||
|
||
if (items.isEmpty) return const SizedBox.shrink();
|
||
|
||
return Container(
|
||
padding: const EdgeInsets.all(12),
|
||
decoration: BoxDecoration(
|
||
color: colors.surfaceContainerHigh,
|
||
borderRadius: BorderRadius.circular(10),
|
||
),
|
||
child: Column(
|
||
children: items.map((pair) => Padding(
|
||
padding: const EdgeInsets.only(bottom: 6),
|
||
child: Row(
|
||
crossAxisAlignment: CrossAxisAlignment.start,
|
||
children: [
|
||
SizedBox(
|
||
width: 72,
|
||
child: Text(pair[0], style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.4))),
|
||
),
|
||
Expanded(
|
||
child: Text(pair[1], style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.75), height: 1.4)),
|
||
),
|
||
],
|
||
),
|
||
)).toList(),
|
||
),
|
||
);
|
||
}
|
||
|
||
Widget _buildOnlineLink(ColorScheme colors, Map<String, dynamic> link) {
|
||
final source = link['source'] ?? '';
|
||
final url = link['url'] ?? '';
|
||
if (source.toString().isEmpty || url.toString().isEmpty) return const SizedBox.shrink();
|
||
return GestureDetector(
|
||
onTap: () => launchUrl(Uri.parse(url.toString()), mode: LaunchMode.externalApplication),
|
||
child: Container(
|
||
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 12),
|
||
decoration: BoxDecoration(
|
||
color: colors.surfaceContainerHigh,
|
||
borderRadius: BorderRadius.circular(10),
|
||
),
|
||
child: Row(
|
||
children: [
|
||
Icon(Icons.link, size: 16, color: colors.primary.withValues(alpha: 0.6)),
|
||
const SizedBox(width: 10),
|
||
Expanded(
|
||
child: Column(
|
||
crossAxisAlignment: CrossAxisAlignment.start,
|
||
children: [
|
||
Text(source.toString(), style: TextStyle(fontSize: 13, fontWeight: FontWeight.w500, color: colors.onSurface)),
|
||
const SizedBox(height: 2),
|
||
Text(url.toString(), style: TextStyle(fontSize: 11, color: colors.onSurface.withValues(alpha: 0.35)), maxLines: 1, overflow: TextOverflow.ellipsis),
|
||
],
|
||
),
|
||
),
|
||
Icon(Icons.chevron_right, size: 16, color: colors.onSurface.withValues(alpha: 0.3)),
|
||
],
|
||
),
|
||
),
|
||
);
|
||
}
|
||
|
||
/// 检测目录层级：0=主章节, 1=子章节
|
||
int _detectLevel(String line) {
|
||
// 主章节：第X章、第X篇、Chapter X、数字+点开头（如 "1. "）
|
||
if (RegExp(r'^第[一二三四五六七八九十百千\d]+[章篇部回卷]').hasMatch(line)) return 0;
|
||
if (RegExp(r'^Chapter\s+\d+', caseSensitive: false).hasMatch(line)) return 0;
|
||
if (RegExp(r'^\d+[\.\s、]').hasMatch(line)) return 0;
|
||
if (RegExp(r'^[一二三四五六七八九十]+[、．.]').hasMatch(line)) return 0;
|
||
// 子章节：第X节、数字.数字（如 "1.1 "）
|
||
if (RegExp(r'^第[一二三四五六七八九十百千\d]+[节]').hasMatch(line)) return 1;
|
||
if (RegExp(r'^\d+\.\d+[\.\s、]').hasMatch(line)) return 1;
|
||
if (RegExp(r'^[（(]\d+[）)]').hasMatch(line)) return 1;
|
||
if (line.startsWith(' ') || line.startsWith('\t')) return 1;
|
||
// 默认主章节
|
||
return 0;
|
||
}
|
||
|
||
Widget _coverPlaceholder(ColorScheme colors) {
|
||
return Container(
|
||
color: colors.surfaceContainerHighest,
|
||
child: Center(
|
||
child: Icon(Icons.menu_book_outlined,
|
||
size: 32, color: colors.onSurface.withValues(alpha: 0.15))));
|
||
}
|
||
|
||
Widget _buildLocalStatus(ColorScheme colors) {
|
||
final status = _localBook!.status;
|
||
final label = _statusLabel(status);
|
||
Color dotColor;
|
||
switch (status) {
|
||
case 'read':
|
||
dotColor = colors.primary;
|
||
break;
|
||
case 'reading':
|
||
dotColor = const Color(0xFF666666);
|
||
break;
|
||
default:
|
||
dotColor = const Color(0xFF999999);
|
||
break;
|
||
}
|
||
return Row(children: [
|
||
Container(
|
||
width: 6,
|
||
height: 6,
|
||
decoration: BoxDecoration(color: dotColor, shape: BoxShape.circle)),
|
||
const SizedBox(width: 6),
|
||
Text('已在本地 · $label',
|
||
style: TextStyle(
|
||
fontSize: 11,
|
||
fontWeight: FontWeight.w500,
|
||
color: colors.onSurface.withValues(alpha: 0.6))),
|
||
]);
|
||
}
|
||
}
|
||
|
||
class _StickyTabBarDelegate extends SliverPersistentHeaderDelegate {
|
||
final Widget child;
|
||
_StickyTabBarDelegate({required this.child});
|
||
|
||
@override
|
||
Widget build(BuildContext context, double shrinkOffset, bool overlapsContent) => child;
|
||
|
||
@override
|
||
double get minExtent => 44;
|
||
|
||
@override
|
||
double get maxExtent => 44;
|
||
|
||
@override
|
||
bool shouldRebuild(_StickyTabBarDelegate oldDelegate) => child != oldDelegate.child;
|
||
}
|