generated from dellevin/template
629 lines
21 KiB
Dart
629 lines
21 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/user_prefs.dart';
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import '../../widgets/note_list_item.dart';
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import '../../widgets/shimmer_skeleton.dart';
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import '../../widgets/fade_in_local_image.dart';
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/// 笔记标签页
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class NoteTabPage extends StatefulWidget {
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const NoteTabPage({super.key});
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@override
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State<NoteTabPage> createState() => _NoteTabPageState();
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}
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class _NoteTabPageState extends State<NoteTabPage> {
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static const int _pageSize = 50;
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final List<Note> _displayedNotes = [];
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bool _isLoading = false;
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bool _hasMore = true;
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final ScrollController _scrollController = ScrollController();
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int _layoutStyle = 0;
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bool _firstLoad = true;
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@override
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void initState() {
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super.initState();
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_scrollController.addListener(_onScroll);
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_layoutStyle = UserPrefs().noteLayoutStyle;
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WidgetsBinding.instance.addPostFrameCallback((_) {
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_loadMoreNotes();
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if (mounted) setState(() => _firstLoad = false);
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});
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}
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int _lastNotesCount = 0;
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@override
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void didChangeDependencies() {
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super.didChangeDependencies();
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final provider = context.watch<AppProvider>();
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final allNotes = provider.notes;
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if (allNotes.length != _lastNotesCount && _displayedNotes.isNotEmpty) {
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_lastNotesCount = allNotes.length;
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setState(() {
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_displayedNotes.clear();
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_hasMore = true;
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});
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Future.microtask(() => _loadMoreNotes());
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} else {
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_lastNotesCount = allNotes.length;
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}
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}
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@override
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void dispose() {
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_scrollController.dispose();
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super.dispose();
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}
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void _onScroll() {
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if (_scrollController.position.pixels >=
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_scrollController.position.maxScrollExtent - 200) {
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_loadMoreNotes();
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}
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}
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Future<void> _loadMoreNotes() async {
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if (_isLoading || !_hasMore) return;
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setState(() => _isLoading = true);
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await Future.microtask(() {
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final provider = context.read<AppProvider>();
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final allNotes = provider.notes;
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final startIndex = _displayedNotes.length;
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final endIndex = (startIndex + _pageSize).clamp(0, allNotes.length);
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if (startIndex >= allNotes.length) {
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_hasMore = false;
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} else {
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final newNotes = allNotes.sublist(startIndex, endIndex);
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_displayedNotes.addAll(newNotes);
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_hasMore = endIndex < allNotes.length;
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}
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});
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if (mounted) {
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setState(() => _isLoading = false);
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}
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}
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Future<void> _refresh() async {
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final provider = context.read<AppProvider>();
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await provider.loadNotes();
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setState(() {
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_displayedNotes.clear();
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_hasMore = true;
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});
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await _loadMoreNotes();
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}
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@override
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Widget build(BuildContext context) {
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return Column(
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children: [
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Expanded(
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child: Consumer<AppProvider>(
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builder: (context, provider, child) {
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final allNotes = provider.notes;
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_syncDisplayedNotes(allNotes);
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if (_firstLoad) {
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return _buildSkeleton();
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}
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if (allNotes.isEmpty && _displayedNotes.isEmpty) {
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final colors = Theme.of(context).colorScheme;
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return RefreshIndicator(
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onRefresh: _refresh,
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color: colors.primary,
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backgroundColor: colors.surface,
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child: ListView(
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physics: const AlwaysScrollableScrollPhysics(),
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children: [_buildEmptyState(context)],
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),
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);
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}
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if (_layoutStyle == 1) {
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return _buildWaterfallView();
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}
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if (_layoutStyle == 2) {
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return _buildTimelineView();
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}
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return _buildListView();
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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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Widget _buildSkeleton() {
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switch (_layoutStyle) {
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case 1:
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return _buildWaterfallSkeleton();
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case 2:
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return const NoteSkeletonList();
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default:
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return const NoteSkeletonList();
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}
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}
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Widget _buildWaterfallSkeleton() {
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final colors = Theme.of(context).colorScheme;
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return SingleChildScrollView(
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padding: const EdgeInsets.fromLTRB(12, 8, 12, 100),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: List.generate(2, (_) => Expanded(
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child: Column(
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children: List.generate(4, (_) => Container(
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margin: const EdgeInsets.only(bottom: 8),
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decoration: BoxDecoration(
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color: colors.surface,
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borderRadius: BorderRadius.circular(10),
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boxShadow: [
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BoxShadow(color: Colors.black.withValues(alpha: 0.04), blurRadius: 6, offset: const Offset(0, 2)),
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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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const ShimmerSkeleton(width: double.infinity, height: 140, borderRadius: 10),
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Padding(
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padding: const EdgeInsets.all(10),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const ShimmerSkeleton(width: double.infinity, height: 14),
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const SizedBox(height: 6),
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const ShimmerSkeleton(width: double.infinity, height: 12),
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const SizedBox(height: 6),
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const ShimmerSkeleton(width: 60, height: 10),
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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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Widget _buildListView() {
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final colors = Theme.of(context).colorScheme;
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return RefreshIndicator(
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onRefresh: _refresh,
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color: colors.primary,
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backgroundColor: colors.surface,
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child: ListView.builder(
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controller: _scrollController,
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padding: const EdgeInsets.fromLTRB(12, 10, 12, 100),
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itemCount: _displayedNotes.length + (_hasMore ? 1 : 0),
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itemBuilder: (context, index) {
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if (index >= _displayedNotes.length) {
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return Padding(
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padding: const EdgeInsets.symmetric(vertical: 16),
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child: Center(
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child: SizedBox(
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width: 20, height: 20,
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child: CircularProgressIndicator(strokeWidth: 2, color: colors.primary),
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),
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),
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);
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}
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return NoteListItem(note: _displayedNotes[index]);
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},
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),
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);
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}
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Widget _buildTimelineView() {
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final colors = Theme.of(context).colorScheme;
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return RefreshIndicator(
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onRefresh: _refresh,
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color: colors.primary,
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backgroundColor: colors.surface,
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child: ListView.builder(
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controller: _scrollController,
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padding: const EdgeInsets.fromLTRB(12, 8, 12, 100),
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itemCount: _displayedNotes.length + (_hasMore ? 1 : 0),
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itemBuilder: (context, index) {
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if (index >= _displayedNotes.length) {
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return Padding(
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padding: const EdgeInsets.symmetric(vertical: 16),
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child: Center(
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child: SizedBox(width: 20, height: 20,
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child: CircularProgressIndicator(strokeWidth: 2, color: colors.primary)),
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),
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);
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}
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return _buildTimelineItem(_displayedNotes[index]);
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},
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),
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);
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}
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Widget _buildTimelineItem(Note note) {
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final colors = Theme.of(context).colorScheme;
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return GestureDetector(
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onTap: () {
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Navigator.pushNamed(context, '/note-detail', arguments: note).then((_) async {
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await context.read<AppProvider>().loadNotes();
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});
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},
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onLongPress: () => _showDeleteDialog(context, note),
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child: IntrinsicHeight(
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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SizedBox(
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width: 40,
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child: Column(
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children: [
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Container(
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width: 10,
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height: 10,
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decoration: BoxDecoration(
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color: colors.primary,
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shape: BoxShape.circle,
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border: Border.all(color: colors.surface, width: 2),
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),
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),
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Expanded(
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child: Container(
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width: 1,
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color: colors.outline,
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),
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),
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],
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),
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),
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Expanded(
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child: Container(
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margin: const EdgeInsets.only(bottom: 16),
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padding: const EdgeInsets.all(14),
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decoration: BoxDecoration(
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color: colors.surfaceContainerHigh,
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borderRadius: BorderRadius.circular(12),
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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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Text(
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_formatFullDate(note.updatedAt),
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style: TextStyle(fontSize: 11, color: colors.onSurface.withValues(alpha: 0.4)),
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),
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if (note.title.isNotEmpty) ...[
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const SizedBox(height: 6),
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Text(
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note.title,
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style: TextStyle(fontSize: 15, fontWeight: FontWeight.w600, color: colors.onSurface),
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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],
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const SizedBox(height: 6),
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Text(
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_getPreviewText(note),
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maxLines: 2,
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overflow: TextOverflow.ellipsis,
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style: TextStyle(fontSize: 13, color: colors.onSurface.withValues(alpha: 0.5), height: 1.5),
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),
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if (note.tags.isNotEmpty) ...[
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const SizedBox(height: 8),
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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) => 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.surface,
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borderRadius: BorderRadius.circular(4),
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),
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child: Text(tag, style: TextStyle(fontSize: 10, color: colors.onSurface.withValues(alpha: 0.4))),
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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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),
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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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String _formatFullDate(DateTime date) {
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return '${date.year}-${date.month.toString().padLeft(2, '0')}-${date.day.toString().padLeft(2, '0')} '
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'${date.hour.toString().padLeft(2, '0')}:${date.minute.toString().padLeft(2, '0')}';
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}
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Widget _buildWaterfallView() {
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final colors = Theme.of(context).colorScheme;
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final leftItems = <Note>[];
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final rightItems = <Note>[];
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for (int i = 0; i < _displayedNotes.length; i++) {
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if (i % 2 == 0) {
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leftItems.add(_displayedNotes[i]);
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} else {
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rightItems.add(_displayedNotes[i]);
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}
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}
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return RefreshIndicator(
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onRefresh: _refresh,
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color: colors.primary,
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backgroundColor: colors.surface,
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child: SingleChildScrollView(
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controller: _scrollController,
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padding: const EdgeInsets.fromLTRB(12, 8, 12, 100),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Expanded(child: Column(children: leftItems.map((n) => _buildWaterfallCard(n)).toList())),
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const SizedBox(width: 8),
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Expanded(child: Column(children: rightItems.map((n) => _buildWaterfallCard(n)).toList())),
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],
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),
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),
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);
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}
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Widget _buildWaterfallCard(Note note) {
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final colors = Theme.of(context).colorScheme;
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final contentText = _getPreviewText(note);
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final images = note.images;
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final hasImage = images.isNotEmpty;
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final extraCount = images.length - 1;
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return GestureDetector(
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onTap: () {
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Navigator.pushNamed(context, '/note-detail', arguments: note).then((_) async {
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await context.read<AppProvider>().loadNotes();
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});
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},
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onLongPress: () => _showDeleteDialog(context, note),
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child: Container(
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margin: const EdgeInsets.only(bottom: 8),
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decoration: BoxDecoration(
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color: colors.surface,
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borderRadius: BorderRadius.circular(10),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withValues(alpha: 0.04),
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blurRadius: 6,
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offset: const Offset(0, 2),
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),
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],
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),
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clipBehavior: Clip.antiAlias,
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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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if (hasImage)
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Stack(
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children: [
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ClipRRect(
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borderRadius: const BorderRadius.vertical(top: Radius.circular(10)),
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child: FadeInLocalImage(
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path: images.first,
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fit: BoxFit.cover,
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errorWidget: const SizedBox.shrink(),
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),
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),
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if (extraCount > 0)
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Positioned(
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top: 6,
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right: 6,
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
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decoration: BoxDecoration(
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color: Colors.black.withValues(alpha: 0.45),
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borderRadius: BorderRadius.circular(10),
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),
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child: Text(
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'+$extraCount',
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style: const TextStyle(fontSize: 11, color: Colors.white, 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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Padding(
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padding: const EdgeInsets.fromLTRB(10, 8, 10, 10),
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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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if (note.title.isNotEmpty)
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Text(
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note.title,
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maxLines: 2,
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overflow: TextOverflow.ellipsis,
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style: TextStyle(
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fontSize: 13,
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fontWeight: FontWeight.w600,
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color: colors.onSurface,
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height: 1.3,
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),
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),
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if (contentText.isNotEmpty && contentText != '(无内容)') ...[
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if (note.title.isNotEmpty) const SizedBox(height: 4),
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Text(
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contentText,
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maxLines: 2,
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overflow: TextOverflow.ellipsis,
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style: TextStyle(
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fontSize: 11,
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color: colors.onSurface.withValues(alpha: 0.4),
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height: 1.4,
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),
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),
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],
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const SizedBox(height: 6),
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Row(
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children: [
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Expanded(
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child: Text(
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_formatTime(note.updatedAt),
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style: TextStyle(fontSize: 10, color: colors.onSurface.withValues(alpha: 0.25)),
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),
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),
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if (note.tags.isNotEmpty)
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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.surfaceContainerHighest,
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borderRadius: BorderRadius.circular(3),
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),
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child: Text(
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note.tags.first,
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style: TextStyle(fontSize: 10, color: colors.onSurface.withValues(alpha: 0.4)),
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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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|
|
String _getPreviewText(Note note) {
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final text = note.content
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.replaceAll(RegExp(r'#'), '')
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.replaceAll(RegExp(r'\*'), '')
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.replaceAll(RegExp(r'`'), '')
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.replaceAll(RegExp(r'[\[\]\(\)]'), '')
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.trim();
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return text.isEmpty ? '(无内容)' : text;
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}
|
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|
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String _formatTime(DateTime date) {
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final now = DateTime.now();
|
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final diff = now.difference(date);
|
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if (diff.inMinutes < 1) return '刚刚';
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if (diff.inHours < 1) return '${diff.inMinutes}分钟前';
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if (diff.inDays < 1) return '${diff.inHours}小时前';
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if (diff.inDays < 7) return '${diff.inDays}天前';
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return '${date.year}-${date.month.toString().padLeft(2, '0')}-${date.day.toString().padLeft(2, '0')}';
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}
|
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|
|
void _showDeleteDialog(BuildContext context, Note note) {
|
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final colors = Theme.of(context).colorScheme;
|
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showDialog(
|
|
context: context,
|
|
builder: (context) => AlertDialog(
|
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backgroundColor: colors.surface,
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elevation: 0,
|
|
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
|
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title: Text('确认删除', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: colors.onSurface)),
|
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content: Text('确定要删除这条笔记吗？删除后可在回收站恢复。',
|
|
style: TextStyle(fontSize: 14, color: colors.onSurface.withValues(alpha: 0.6), height: 1.5)),
|
|
actions: [
|
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TextButton(
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|
onPressed: () => Navigator.pop(context),
|
|
style: TextButton.styleFrom(
|
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foregroundColor: colors.onSurface.withValues(alpha: 0.6),
|
|
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
|
|
),
|
|
child: const Text('取消'),
|
|
),
|
|
ElevatedButton(
|
|
onPressed: () async {
|
|
await context.read<AppProvider>().removeNote(note.id);
|
|
Navigator.pop(context);
|
|
},
|
|
style: ElevatedButton.styleFrom(
|
|
backgroundColor: colors.error,
|
|
foregroundColor: colors.onError,
|
|
elevation: 0,
|
|
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
|
|
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
|
|
),
|
|
child: const Text('删除'),
|
|
),
|
|
],
|
|
actionsPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
|
|
),
|
|
);
|
|
}
|
|
|
|
void _syncDisplayedNotes(List<Note> allNotes) {
|
|
final validNoteIds = allNotes.map((n) => n.id).toSet();
|
|
final initialLength = _displayedNotes.length;
|
|
_displayedNotes.removeWhere((note) => !validNoteIds.contains(note.id));
|
|
|
|
final displayedIds = _displayedNotes.map((n) => n.id).toSet();
|
|
final hasNewNotes = allNotes.any((note) => !displayedIds.contains(note.id));
|
|
|
|
bool hasUpdates = false;
|
|
for (int i = 0; i < _displayedNotes.length; i++) {
|
|
final localNote = _displayedNotes[i];
|
|
final providerNote = allNotes.firstWhere((n) => n.id == localNote.id);
|
|
if (localNote.updatedAt != providerNote.updatedAt) {
|
|
hasUpdates = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (_displayedNotes.length < initialLength || hasNewNotes || hasUpdates) {
|
|
_displayedNotes.clear();
|
|
_displayedNotes.addAll(allNotes);
|
|
_hasMore = false;
|
|
}
|
|
}
|
|
|
|
Widget _buildEmptyState(BuildContext context) {
|
|
final colors = Theme.of(context).colorScheme;
|
|
return Center(
|
|
child: Column(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: [
|
|
Container(
|
|
width: 80, height: 80,
|
|
decoration: BoxDecoration(
|
|
color: colors.surfaceContainerHighest,
|
|
borderRadius: BorderRadius.circular(20),
|
|
),
|
|
child: Icon(Icons.note_outlined, size: 40, color: colors.onSurface.withValues(alpha: 0.25)),
|
|
),
|
|
const SizedBox(height: 20),
|
|
Text('暂无笔记', style: TextStyle(fontSize: 16, color: colors.onSurface.withValues(alpha: 0.4))),
|
|
const SizedBox(height: 24),
|
|
InkWell(
|
|
onTap: () => Navigator.pushNamed(context, '/note-form'),
|
|
child: Container(
|
|
padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
|
|
decoration: BoxDecoration(
|
|
color: colors.primary,
|
|
borderRadius: BorderRadius.circular(8),
|
|
),
|
|
child: Text('添加记录',
|
|
style: TextStyle(fontSize: 14, fontWeight: FontWeight.w500, color: colors.onPrimary)),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|