generated from dellevin/template
306 lines
9.7 KiB
Dart
306 lines
9.7 KiB
Dart
import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import '../providers/app_provider.dart';
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import '../models/data_models.dart';
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import '../utils/toast_util.dart';
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import 'fade_in_local_image.dart';
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/// 笔记列表项组件 - 极简主义设计
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class NoteListItem extends StatelessWidget {
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final Note note;
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const NoteListItem({super.key, required this.note});
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@override
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Widget build(BuildContext context) {
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// 使用 RepaintBoundary 减少重绘
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return RepaintBoundary(
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child: _NoteListItemContent(note: note),
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);
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}
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}
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/// 笔记列表项内容 - 分离出来便于优化
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class _NoteListItemContent extends StatelessWidget {
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final Note note;
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const _NoteListItemContent({required this.note});
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@override
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Widget build(BuildContext context) {
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return InkWell(
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onTap: () {
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Navigator.pushNamed(context, '/note-detail', arguments: note).then((_) async {
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// 返回时刷新笔记列表
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await context.read<AppProvider>().loadNotes();
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});
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},
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onLongPress: () => _showDeleteDialog(context),
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child: Container(
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margin: const EdgeInsets.only(bottom: 8),
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padding: const EdgeInsets.fromLTRB(12, 10, 12, 10),
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decoration: BoxDecoration(
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color: const Color(0xFFFAFAFA),
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borderRadius: BorderRadius.circular(8),
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border: Border.all(color: const Color(0xFFE8E8E8), width: 0.5),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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mainAxisSize: MainAxisSize.min,
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children: [
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// 顶部：时间 + MD标记
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Row(
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children: [
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// 时间
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Text(
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_formatDateCached(note.updatedAt),
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style: const TextStyle(
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fontSize: 11,
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color: Color(0xFF999999),
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),
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),
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const SizedBox(width: 8),
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// MD标记
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Container(
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padding: const EdgeInsets.symmetric(horizontal: 5, vertical: 1),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(3),
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border: Border.all(color: const Color(0xFFE8E8E8), width: 0.5),
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),
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child: const Text(
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'MD',
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style: TextStyle(
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fontSize: 9,
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fontWeight: FontWeight.w600,
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color: Color(0xFF999999),
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),
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),
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),
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],
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),
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const SizedBox(height: 6),
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// 标题
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if (note.title.isNotEmpty) ...[
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Text(
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note.title,
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style: const TextStyle(
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fontSize: 15,
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fontWeight: FontWeight.w600,
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color: Color(0xFF1A1A1A),
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height: 1.4,
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),
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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const SizedBox(height: 4),
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],
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// 内容摘要（去除Markdown标记），内容为空则不显示
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if (_collapseBlankLines(_cleanMarkdown(note.content).trim()).isNotEmpty)
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Text(
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_collapseBlankLines(_cleanMarkdown(note.content).trim()),
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style: const TextStyle(
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fontSize: 13,
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color: Color(0xFF666666),
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height: 1.5,
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),
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maxLines: 2,
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overflow: TextOverflow.ellipsis,
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),
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// 底部标签
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if (note.tags.isNotEmpty) ...[
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const SizedBox(height: 6),
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Wrap(
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spacing: 6,
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runSpacing: 4,
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children: note.tags.map((tag) {
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return Container(
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padding: const EdgeInsets.symmetric(horizontal: 7, vertical: 2),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(4),
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border: Border.all(color: const Color(0xFFE8E8E8), width: 0.5),
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),
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child: Text(
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tag,
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style: const TextStyle(
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fontSize: 11,
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color: Color(0xFF666666),
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),
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),
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);
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}).toList(),
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),
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],
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// 图片预览
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if (note.images.isNotEmpty) ...[
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const SizedBox(height: 8),
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_buildImagePreviewRow(),
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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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/// 图片预览行
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Widget _buildImagePreviewRow() {
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final images = note.images;
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final count = images.length.clamp(0, 3);
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return Row(
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children: [
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for (int i = 0; i < count; i++)
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Container(
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width: 48,
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height: 48,
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margin: const EdgeInsets.only(right: 6),
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(6),
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border: Border.all(color: const Color(0xFFE8E8E8), width: 0.5),
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),
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clipBehavior: Clip.antiAlias,
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child: FadeInLocalImage(
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path: images[i],
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fit: BoxFit.cover,
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errorWidget: Container(
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color: const Color(0xFFF5F5F5),
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),
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),
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),
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if (images.length > 3)
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Container(
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width: 48,
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height: 48,
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decoration: BoxDecoration(
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color: const Color(0xFFF5F5F5),
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borderRadius: BorderRadius.circular(6),
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),
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child: Center(
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child: Text(
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'+${images.length - 3}',
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style: const TextStyle(fontSize: 12, color: Color(0xFF999999), fontWeight: FontWeight.w500),
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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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/// 清理 Markdown 标记，提取纯文本
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String _cleanMarkdown(String text) {
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return text
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.replaceAll(RegExp(r'^#+\s+', multiLine: true), '') // 标题
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.replaceAll(RegExp(r'\*\*(.+?)\*\*'), r'$1') // 粗体
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.replaceAll(RegExp(r'\*(.+?)\*'), r'$1') // 斜体
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.replaceAll(RegExp(r'`(.+?)`'), r'$1') // 行内代码
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.replaceAll(RegExp(r'^\s*[-*+]\s', multiLine: true), '') // 列表
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.replaceAll(RegExp(r'^\s*>\s', multiLine: true), '') // 引用
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.replaceAll(RegExp(r'\[([^\]]+)\]\([^)]+\)'), r'$1') // 链接
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.replaceAll(RegExp(r'!\[([^\]]*)\]\([^)]+\)'), '') // 图片
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.trim();
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}
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/// 合并连续空行为单行
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String _collapseBlankLines(String text) {
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return text.replaceAll(RegExp(r'\n\s*\n+'), '\n');
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}
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/// 显示删除确认对话框
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void _showDeleteDialog(BuildContext context) {
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showDialog(
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context: context,
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builder: (context) => AlertDialog(
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backgroundColor: Colors.white,
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elevation: 0,
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
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title: const Text(
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'确认删除',
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style: TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.w600,
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),
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),
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content: const Text(
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'确定要删除这条笔记吗？删除后可在回收站恢复。',
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style: TextStyle(
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fontSize: 14,
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color: Color(0xFF666666),
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height: 1.5,
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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(context),
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style: TextButton.styleFrom(
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foregroundColor: const Color(0xFF666666),
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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),
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child: const Text('取消'),
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),
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ElevatedButton(
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onPressed: () async {
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await context.read<AppProvider>().removeNote(note.id);
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Navigator.pop(context);
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ToastUtil.show(context, '已删除');
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},
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.red,
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foregroundColor: Colors.white,
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elevation: 0,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8),
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),
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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),
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child: const Text('删除'),
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),
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],
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actionsPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
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),
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);
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}
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}
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// 日期格式化缓存
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final Map<DateTime, String> _dateFormatCache = {};
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/// 格式化日期（带缓存）
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String _formatDateCached(DateTime date) {
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// 使用日期部分作为缓存键（忽略时分秒）
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final cacheKey = DateTime(date.year, date.month, date.day);
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if (_dateFormatCache.containsKey(cacheKey)) {
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return _dateFormatCache[cacheKey]!;
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}
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final result = _formatDate(date);
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_dateFormatCache[cacheKey] = result;
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return result;
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}
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/// 格式化日期
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String _formatDate(DateTime date) {
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final now = DateTime.now();
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final difference = now.difference(date);
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if (difference.inDays == 0) {
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if (difference.inHours == 0) {
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if (difference.inMinutes == 0) {
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return '刚刚';
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}
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return '${difference.inMinutes}分钟前';
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}
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return '${difference.inHours}小时前';
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} else if (difference.inDays < 7) {
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return '${difference.inDays}天前';
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} else {
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return '${date.year}-${date.month.toString().padLeft(2, '0')}-${date.day.toString().padLeft(2, '0')}';
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}
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}
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