generated from dellevin/template
478 lines
16 KiB
Dart
478 lines
16 KiB
Dart
import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:flutter_markdown/flutter_markdown.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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/// 笔记详情页 - 极简主义设计
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class NoteDetailPage extends StatefulWidget {
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final Note note;
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const NoteDetailPage({super.key, required this.note});
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@override
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State<NoteDetailPage> createState() => _NoteDetailPageState();
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}
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class _NoteDetailPageState extends State<NoteDetailPage> {
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@override
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Widget build(BuildContext context) {
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// 从 Provider 获取最新的笔记数据
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final note = context.watch<AppProvider>().notes.firstWhere(
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(n) => n.id == widget.note.id,
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orElse: () => widget.note,
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);
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return Scaffold(
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backgroundColor: Colors.white,
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appBar: AppBar(
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title: Text(_getTitle(note.content)),
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actions: [
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// 格式指示器 - 纯文本标记
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if (note.contentType == 'markdown')
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Container(
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margin: const EdgeInsets.only(right: 8),
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padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
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decoration: BoxDecoration(
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color: const Color(0xFFF5F5F5),
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borderRadius: BorderRadius.circular(2),
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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: 10,
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fontWeight: FontWeight.w500,
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color: Color(0xFF666666),
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),
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),
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)
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else
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Container(
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margin: const EdgeInsets.only(right: 8),
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padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
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decoration: BoxDecoration(
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color: const Color(0xFFF5F5F5),
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borderRadius: BorderRadius.circular(2),
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),
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child: const Text(
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'TXT',
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style: TextStyle(
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fontSize: 10,
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fontWeight: FontWeight.w500,
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color: Color(0xFF666666),
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),
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),
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),
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IconButton(
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icon: const Icon(Icons.edit_outlined),
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onPressed: () => _navigateToEdit(context),
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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: Column(
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children: [
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// 标签区域
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if (note.tags.isNotEmpty)
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Container(
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padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 16),
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decoration: const BoxDecoration(
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border: Border(
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bottom: BorderSide(color: Color(0xFFE8E8E8), width: 0.5),
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),
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),
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child: Row(
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children: [
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Wrap(
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spacing: 10,
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runSpacing: 10,
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children: note.tags.map((tag) {
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return Container(
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padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
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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: Text(
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tag,
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style: const TextStyle(
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fontSize: 13,
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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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),
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),
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// 内容区域
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Expanded(
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child: note.contentType == 'markdown'
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? _buildMarkdownContent(note)
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: _buildPlainTextContent(note),
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),
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// 图片区域（仅在纯文本模式下显示）
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if (note.contentType == 'plain_text' && note.images.isNotEmpty)
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Container(
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padding: const EdgeInsets.fromLTRB(20, 20, 20, 24),
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decoration: const BoxDecoration(
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border: Border(
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top: BorderSide(color: Color(0xFFE8E8E8), width: 0.5),
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),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// 图片标题
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Row(
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children: [
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Container(
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width: 32,
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height: 32,
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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: const Icon(
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Icons.image_outlined,
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size: 18,
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color: Color(0xFF666666),
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),
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),
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const SizedBox(width: 12),
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Text(
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'图片 (${note.images.length})',
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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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),
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),
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],
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),
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const SizedBox(height: 16),
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// 图片列表
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SizedBox(
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height: 110,
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child: ListView.builder(
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scrollDirection: Axis.horizontal,
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itemCount: note.images.length,
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itemBuilder: (context, index) {
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return GestureDetector(
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onTap: () => _showImagePreview(context, note.images, index),
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child: Container(
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width: 110,
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height: 110,
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margin: const EdgeInsets.only(right: 12),
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(10),
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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: Image.file(
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File(note.images[index]),
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fit: BoxFit.cover,
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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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),
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// 底部操作栏
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Container(
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decoration: const BoxDecoration(
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border: Border(
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top: BorderSide(color: Color(0xFFE8E8E8), width: 0.5),
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),
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),
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child: SafeArea(
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 16),
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child: Row(
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children: [
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// 时间信息
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Expanded(
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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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Text(
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'创建 ${_formatDateTime(note.createdAt)}',
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style: const TextStyle(
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fontSize: 12,
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color: Color(0xFF999999),
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),
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),
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const SizedBox(height: 4),
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Text(
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'更新 ${_formatDateTime(note.updatedAt)}',
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style: const TextStyle(
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fontSize: 12,
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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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// 操作按钮
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Row(
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children: [
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_buildActionButton(
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icon: Icons.edit_outlined,
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color: const Color(0xFF666666),
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onTap: () => _navigateToEdit(context),
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),
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const SizedBox(width: 12),
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_buildActionButton(
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icon: Icons.delete_outline,
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color: Colors.red,
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onTap: () => _showDeleteDialog(context),
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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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],
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),
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);
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}
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/// 构建 Markdown 内容
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Widget _buildMarkdownContent(Note note) {
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return Markdown(
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data: note.content,
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styleSheet: MarkdownStyleSheet(
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h1: const TextStyle(
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fontSize: 24,
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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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h2: const TextStyle(
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fontSize: 20,
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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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h3: const TextStyle(
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fontSize: 18,
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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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p: const TextStyle(
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fontSize: 16,
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color: Color(0xFF1A1A1A),
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height: 1.8,
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),
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code: const TextStyle(
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fontSize: 14,
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color: Color(0xFF1A1A1A),
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backgroundColor: Color(0xFFF5F5F5),
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),
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codeblockDecoration: BoxDecoration(
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color: const Color(0xFFF5F5F5),
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border: Border.all(color: const Color(0xFFE5E5E5)),
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),
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blockquote: const TextStyle(
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fontSize: 16,
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color: Color(0xFF666666),
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fontStyle: FontStyle.italic,
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),
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blockquoteDecoration: BoxDecoration(
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border: Border(
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left: BorderSide(color: const Color(0xFF999999), width: 4),
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),
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),
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listBullet: const TextStyle(
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fontSize: 16,
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color: Color(0xFF1A1A1A),
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),
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a: const TextStyle(
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fontSize: 16,
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color: Color(0xFF1A1A1A),
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decoration: TextDecoration.underline,
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),
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),
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padding: const EdgeInsets.all(16),
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);
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}
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/// 构建纯文本内容
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Widget _buildPlainTextContent(Note note) {
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return SingleChildScrollView(
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padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 16),
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child: SizedBox(
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width: double.infinity,
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child: SelectableText(
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note.content,
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textAlign: TextAlign.left,
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style: const TextStyle(
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fontSize: 15,
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color: Color(0xFF1A1A1A),
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height: 1.9,
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letterSpacing: 0.2,
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),
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),
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),
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);
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}
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/// 格式化日期时间
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String _formatDateTime(DateTime dateTime) {
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return '${dateTime.year}-${dateTime.month.toString().padLeft(2, '0')}-${dateTime.day.toString().padLeft(2, '0')} ${dateTime.hour.toString().padLeft(2, '0')}:${dateTime.minute.toString().padLeft(2, '0')}';
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}
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/// 获取标题（内容前5个字）
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String _getTitle(String content) {
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if (content.isEmpty) return '无标题';
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// 移除换行符和多余空格
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final trimmed = content.replaceAll('\n', ' ').trim();
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if (trimmed.isEmpty) return '无标题';
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// 取前5个字
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if (trimmed.length <= 5) return trimmed;
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return '${trimmed.substring(0, 5)}...';
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}
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/// 跳转到编辑页面
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void _navigateToEdit(BuildContext context) {
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// 从 Provider 获取最新的笔记数据，确保图片等字段是最新的
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final currentNote = context.read<AppProvider>().notes.firstWhere(
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(n) => n.id == widget.note.id,
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orElse: () => widget.note,
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);
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Navigator.pushNamed(context, '/note-form', arguments: currentNote).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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/// 显示图片预览
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void _showImagePreview(BuildContext context, List<String> images, int initialIndex) {
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showDialog(
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context: context,
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barrierDismissible: true,
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builder: (context) => GestureDetector(
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onTap: () => Navigator.pop(context),
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child: Container(
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color: Colors.black.withOpacity(0.9),
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child: Center(
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child: InteractiveViewer(
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panEnabled: true,
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boundaryMargin: const EdgeInsets.all(20),
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minScale: 0.5,
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maxScale: 4,
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child: Image.file(
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File(images[initialIndex]),
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fit: BoxFit.contain,
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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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/// 构建操作按钮
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Widget _buildActionButton({
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required IconData icon,
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required Color color,
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required VoidCallback onTap,
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}) {
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return Container(
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width: 40,
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height: 40,
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decoration: BoxDecoration(
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color: const Color(0xFFFAFAFA),
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borderRadius: BorderRadius.circular(10),
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border: Border.all(color: const Color(0xFFE8E8E8), width: 0.5),
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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: onTap,
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borderRadius: BorderRadius.circular(10),
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child: Icon(
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icon,
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color: color,
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size: 20,
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),
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),
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),
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);
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}
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/// 显示删除对话框
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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(widget.note.id);
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// 刷新笔记列表
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await context.read<AppProvider>().loadNotes();
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if (!mounted) return;
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Navigator.pop(context);
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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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