576 lines
17 KiB
Dart
576 lines
17 KiB
Dart
// 手账编辑器页面 — 三层 Stack 架构
|
||
//
|
||
// Layer 1 (底层): HandwritingCanvas — 手写画布
|
||
// Layer 2 (中层): DraggableElements — 贴纸/照片/文字元素
|
||
// Layer 3 (顶层): EditorToolbar — 底部工具栏 + 顶栏操作
|
||
//
|
||
// 交互逻辑：
|
||
// - 画笔模式 → Layer 1 接收手势，Layer 2 透传
|
||
// - 选择模式 → Layer 2 接收手势，Layer 1 透传
|
||
// - 工具栏 → 始终在最顶层
|
||
|
||
import 'package:flutter/material.dart';
|
||
import 'package:flutter_bloc/flutter_bloc.dart';
|
||
import 'package:go_router/go_router.dart';
|
||
|
||
import '../../../core/constants/design_tokens.dart';
|
||
import '../../../data/models/journal_element.dart';
|
||
import '../../../data/models/journal_entry.dart';
|
||
import '../../../data/repositories/journal_repository.dart';
|
||
import '../../../data/repositories/class_repository.dart';
|
||
import '../bloc/editor_bloc.dart';
|
||
import '../widgets/handwriting_canvas.dart';
|
||
import '../widgets/stroke_model.dart';
|
||
import '../widgets/draggable_element.dart';
|
||
import '../widgets/editor_toolbar.dart';
|
||
import '../widgets/text_input_overlay.dart';
|
||
import '../widgets/image_picker_handler.dart';
|
||
import '../widgets/sticker_picker_sheet.dart';
|
||
import '../widgets/share_bottom_sheet.dart';
|
||
|
||
/// 手账编辑器页面
|
||
class EditorPage extends StatelessWidget {
|
||
final String? journalId;
|
||
final String? templateId;
|
||
|
||
const EditorPage({super.key, this.journalId, this.templateId});
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
// 从 Provider 树获取 JournalRepository（IsarJournalRepository）
|
||
final repo = context.read<JournalRepository>();
|
||
|
||
// 可变闭包变量：跟踪已保存的日记 ID
|
||
// 新建日记首次保存后赋值，后续自动更新使用此 ID
|
||
String? savedJournalId = journalId;
|
||
|
||
return BlocProvider(
|
||
create: (_) => EditorBloc(
|
||
onSave: (state) async {
|
||
try {
|
||
await _persistState(repo, state, (id) => savedJournalId = id, savedJournalId);
|
||
} catch (e) {
|
||
debugPrint('自动保存失败: $e');
|
||
}
|
||
},
|
||
),
|
||
child: _EditorView(
|
||
journalId: journalId,
|
||
templateId: templateId,
|
||
savedJournalId: savedJournalId,
|
||
repo: repo,
|
||
onSaveComplete: () {
|
||
_showShareSheetAndNavigate(context, repo, savedJournalId);
|
||
},
|
||
),
|
||
);
|
||
}
|
||
|
||
/// 持久化编辑器状态到 Isar
|
||
///
|
||
/// 策略：
|
||
/// - 首次保存（savedJournalId == null）→ createJournal + addElement
|
||
/// - 后续保存 → updateJournal + upsert 元素
|
||
/// - 笔画序列化为 handwriting_ref 元素
|
||
Future<void> _persistState(
|
||
JournalRepository repo,
|
||
EditorState state,
|
||
void Function(String) setId,
|
||
String? savedJournalId,
|
||
) async {
|
||
final now = DateTime.now();
|
||
|
||
if (savedJournalId == null) {
|
||
// --- 新建日记 ---
|
||
final entry = JournalEntry.create(
|
||
authorId: 'local', // TODO: 从 AuthBloc 获取真实用户 ID
|
||
title: '${now.month}月${now.day}日的日记',
|
||
date: now,
|
||
);
|
||
await repo.createJournal(entry);
|
||
setId(entry.id);
|
||
|
||
// 保存笔画
|
||
if (state.strokes.isNotEmpty) {
|
||
await _saveStrokesAsElement(repo, entry.id, state.strokes);
|
||
}
|
||
|
||
// 保存其他元素
|
||
for (final element in state.elements) {
|
||
await repo.addElement(element.copyWith(journalId: entry.id));
|
||
}
|
||
} else {
|
||
// --- 更新已有日记 ---
|
||
final existing = await repo.getJournal(savedJournalId);
|
||
if (existing != null) {
|
||
await repo.updateJournal(existing);
|
||
}
|
||
|
||
// 更新笔画
|
||
if (state.strokes.isNotEmpty) {
|
||
await _saveStrokesAsElement(repo, savedJournalId, state.strokes);
|
||
}
|
||
|
||
// upsert 元素（先尝试更新，失败则新建）
|
||
for (final element in state.elements) {
|
||
try {
|
||
await repo.updateElement(element);
|
||
} catch (_) {
|
||
await repo.addElement(element);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/// 将笔画列表序列化为 handwriting_ref 元素并保存
|
||
///
|
||
/// 每次保存都替换整个笔画集（Phase 1 简化策略）。
|
||
Future<void> _saveStrokesAsElement(
|
||
JournalRepository repo,
|
||
String journalId,
|
||
List<Stroke> strokes,
|
||
) async {
|
||
final now = DateTime.now();
|
||
final strokesJson = strokes.map((s) => s.toJson()).toList();
|
||
|
||
final element = JournalElement(
|
||
id: '${journalId}_strokes', // 固定 ID，保证每次覆盖
|
||
journalId: journalId,
|
||
elementType: ElementType.handwritingRef,
|
||
content: {
|
||
'strokes': strokesJson,
|
||
'strokeCount': strokes.length,
|
||
},
|
||
version: 1,
|
||
createdAt: now,
|
||
updatedAt: now,
|
||
);
|
||
|
||
try {
|
||
await repo.updateElement(element);
|
||
} catch (_) {
|
||
await repo.addElement(element);
|
||
}
|
||
}
|
||
|
||
/// 显示分享面板并在用户选择后导航
|
||
static void _showShareSheetAndNavigate(
|
||
BuildContext context,
|
||
JournalRepository repo,
|
||
String? savedJournalId,
|
||
) {
|
||
// 尝试获取用户的班级信息
|
||
String? userClassId;
|
||
String userClassName = '我的班级';
|
||
|
||
try {
|
||
context.read<ClassRepository>();
|
||
// Phase 1 简化：不等待异步调用，使用默认值
|
||
userClassId = null; // TODO: 从 AuthBloc/ClassBloc 获取真实班级 ID
|
||
} catch (_) {
|
||
// ClassRepository 不可用（未注入）
|
||
}
|
||
|
||
showModalBottomSheet(
|
||
context: context,
|
||
isScrollControlled: true,
|
||
builder: (sheetContext) => ShareBottomSheet(
|
||
classId: userClassId,
|
||
className: userClassName,
|
||
onDecision: (shareToClass) async {
|
||
// 更新日记的 sharedToClass 状态
|
||
if (savedJournalId != null) {
|
||
try {
|
||
final entry = await repo.getJournal(savedJournalId);
|
||
if (entry != null) {
|
||
await repo.updateJournal(
|
||
entry.copyWith(sharedToClass: shareToClass),
|
||
);
|
||
}
|
||
} catch (e) {
|
||
debugPrint('更新分享状态失败: $e');
|
||
}
|
||
}
|
||
|
||
// 导航返回
|
||
if (!context.mounted) return;
|
||
if (context.canPop()) {
|
||
context.pop();
|
||
} else {
|
||
context.go('/home');
|
||
}
|
||
},
|
||
),
|
||
);
|
||
}
|
||
}
|
||
|
||
class _EditorView extends StatelessWidget {
|
||
final String? journalId;
|
||
final String? templateId;
|
||
final String? savedJournalId;
|
||
final JournalRepository repo;
|
||
final VoidCallback onSaveComplete;
|
||
|
||
const _EditorView({
|
||
this.journalId,
|
||
this.templateId,
|
||
this.savedJournalId,
|
||
required this.repo,
|
||
required this.onSaveComplete,
|
||
});
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
final colorScheme = Theme.of(context).colorScheme;
|
||
|
||
return Scaffold(
|
||
backgroundColor: colorScheme.surface,
|
||
body: SafeArea(
|
||
child: Column(
|
||
children: [
|
||
// 顶栏
|
||
_buildTopBar(context),
|
||
|
||
// 编辑区域（三层 Stack）
|
||
Expanded(
|
||
child: BlocBuilder<EditorBloc, EditorState>(
|
||
builder: (context, state) {
|
||
return _EditorStack(state: state, journalId: journalId);
|
||
},
|
||
),
|
||
),
|
||
|
||
// 底部工具栏
|
||
BlocBuilder<EditorBloc, EditorState>(
|
||
builder: (context, state) {
|
||
return EditorToolbar(
|
||
state: state,
|
||
onEvent: (event) => context.read<EditorBloc>().add(event),
|
||
);
|
||
},
|
||
),
|
||
],
|
||
),
|
||
),
|
||
);
|
||
}
|
||
|
||
/// 顶部操作栏 — 返回/日记标题/完成
|
||
Widget _buildTopBar(BuildContext context) {
|
||
final colorScheme = Theme.of(context).colorScheme;
|
||
|
||
return Container(
|
||
height: 52,
|
||
padding: const EdgeInsets.symmetric(horizontal: DesignTokens.spacing8),
|
||
decoration: BoxDecoration(
|
||
color: colorScheme.surface,
|
||
border: Border(
|
||
bottom: BorderSide(color: colorScheme.outline.withValues(alpha: 0.1)),
|
||
),
|
||
),
|
||
child: Row(
|
||
children: [
|
||
// 返回按钮
|
||
IconButton(
|
||
onPressed: () {
|
||
if (context.canPop()) {
|
||
context.pop();
|
||
} else {
|
||
context.go('/home');
|
||
}
|
||
},
|
||
icon: const Icon(Icons.arrow_back_rounded),
|
||
tooltip: '返回',
|
||
),
|
||
|
||
const SizedBox(width: DesignTokens.spacing8),
|
||
|
||
// 日记标题
|
||
Expanded(
|
||
child: Text(
|
||
journalId != null
|
||
? '编辑日记'
|
||
: templateId != null
|
||
? '从模板新建'
|
||
: '新建日记',
|
||
style: Theme.of(context).textTheme.titleMedium?.copyWith(
|
||
fontWeight: FontWeight.w600,
|
||
),
|
||
),
|
||
),
|
||
|
||
// 完成按钮
|
||
FilledButton.tonal(
|
||
onPressed: onSaveComplete,
|
||
style: FilledButton.styleFrom(
|
||
padding: const EdgeInsets.symmetric(horizontal: DesignTokens.spacing16),
|
||
minimumSize: const Size(0, 36),
|
||
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
|
||
),
|
||
child: const Text('完成'),
|
||
),
|
||
],
|
||
),
|
||
);
|
||
}
|
||
}
|
||
|
||
// ============================================================
|
||
// 编辑器三层 Stack
|
||
// ============================================================
|
||
|
||
/// 编辑器 Stack — 三层叠加结构
|
||
///
|
||
/// Layer 1 (底层): HandwritingCanvas
|
||
/// Layer 2 (中层): 可拖拽元素（贴纸/照片/文字）
|
||
/// Layer 3 (顶层): 由 _EditorView 中的工具栏处理
|
||
class _EditorStack extends StatefulWidget {
|
||
final EditorState state;
|
||
final String? journalId;
|
||
|
||
const _EditorStack({required this.state, this.journalId});
|
||
|
||
@override
|
||
State<_EditorStack> createState() => _EditorStackState();
|
||
}
|
||
|
||
class _EditorStackState extends State<_EditorStack> {
|
||
EditorTool? _lastTool;
|
||
|
||
@override
|
||
void didUpdateWidget(covariant _EditorStack oldWidget) {
|
||
super.didUpdateWidget(oldWidget);
|
||
final currentTool = widget.state.activeTool;
|
||
|
||
// 贴纸工具刚被激活时弹出底部面板（防止重复弹窗）
|
||
if (currentTool == EditorTool.sticker && _lastTool != EditorTool.sticker) {
|
||
WidgetsBinding.instance.addPostFrameCallback((_) {
|
||
if (mounted) _showStickerPicker();
|
||
});
|
||
}
|
||
_lastTool = currentTool;
|
||
}
|
||
|
||
/// 显示贴纸选择底部面板
|
||
void _showStickerPicker() {
|
||
showModalBottomSheet(
|
||
context: context,
|
||
isScrollControlled: true,
|
||
builder: (_) => StickerPickerSheet(
|
||
onStickerSelected: (emoji) {
|
||
final center = Offset(
|
||
MediaQuery.of(context).size.width / 2 - 24,
|
||
MediaQuery.of(context).size.height / 3,
|
||
);
|
||
context.read<EditorBloc>().add(ElementAdded(
|
||
JournalElement.createSticker(
|
||
journalId: widget.journalId ?? '',
|
||
emoji: emoji,
|
||
position: center,
|
||
),
|
||
));
|
||
context.read<EditorBloc>().add(ToolChanged(EditorTool.select));
|
||
},
|
||
),
|
||
);
|
||
}
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
final state = widget.state;
|
||
|
||
return Stack(
|
||
fit: StackFit.expand,
|
||
children: [
|
||
// Layer 1: 手写画布（底层）
|
||
IgnorePointer(
|
||
ignoring: !state.isDrawingMode,
|
||
child: HandwritingCanvas(
|
||
brushType: state.brushType,
|
||
brushColor: state.brushColor,
|
||
brushWidth: state.brushWidth,
|
||
strokes: state.strokes,
|
||
onStrokeCompleted: (stroke) {
|
||
context.read<EditorBloc>().add(StrokeCompleted(stroke));
|
||
},
|
||
),
|
||
),
|
||
|
||
// Layer 2: 可拖拽元素（中层）
|
||
if (state.elements.isNotEmpty)
|
||
_buildElementLayer(context, state),
|
||
|
||
// 文字输入覆盖层（文字工具激活时显示）
|
||
if (state.activeTool == EditorTool.text)
|
||
TextInputOverlay(
|
||
onConfirmed: (text, fontSize, fontColor) {
|
||
final center = Offset(
|
||
MediaQuery.of(context).size.width / 2 - 80,
|
||
MediaQuery.of(context).size.height / 3,
|
||
);
|
||
context.read<EditorBloc>().add(ElementAdded(
|
||
JournalElement.createText(
|
||
journalId: widget.journalId ?? '',
|
||
text: text,
|
||
position: center,
|
||
fontSize: fontSize,
|
||
fontColor: fontColor,
|
||
),
|
||
));
|
||
context.read<EditorBloc>().add(ToolChanged(EditorTool.select));
|
||
},
|
||
onCancelled: () {
|
||
context.read<EditorBloc>().add(ToolChanged(EditorTool.select));
|
||
},
|
||
),
|
||
|
||
// 图片选择覆盖层（图片工具激活时显示）
|
||
if (state.activeTool == EditorTool.image)
|
||
Center(
|
||
child: Row(
|
||
mainAxisAlignment: MainAxisAlignment.center,
|
||
children: [
|
||
_ImageSourceButton(
|
||
icon: Icons.camera_alt_outlined,
|
||
label: '拍照',
|
||
onTap: () => _pickImage(fromCamera: true),
|
||
),
|
||
const SizedBox(width: 24),
|
||
_ImageSourceButton(
|
||
icon: Icons.photo_library_outlined,
|
||
label: '从相册',
|
||
onTap: () => _pickImage(fromCamera: false),
|
||
),
|
||
],
|
||
),
|
||
),
|
||
|
||
// 空状态提示
|
||
if (state.strokes.isEmpty && state.elements.isEmpty && state.activeTool == EditorTool.select)
|
||
_buildEmptyHint(context),
|
||
],
|
||
);
|
||
}
|
||
|
||
/// 图片选择逻辑
|
||
Future<void> _pickImage({required bool fromCamera}) async {
|
||
final filePath = await ImagePickerHandler.pickImage(fromCamera: fromCamera);
|
||
if (filePath == null || !mounted) return;
|
||
|
||
final thumbnailPath = await ImagePickerHandler.generateThumbnail(filePath);
|
||
if (!mounted) return;
|
||
|
||
final center = Offset(
|
||
MediaQuery.of(context).size.width / 2 - 80,
|
||
MediaQuery.of(context).size.height / 3,
|
||
);
|
||
|
||
context.read<EditorBloc>().add(ElementAdded(
|
||
JournalElement.createImage(
|
||
journalId: widget.journalId ?? '',
|
||
filePath: filePath,
|
||
position: center,
|
||
thumbnailPath: thumbnailPath,
|
||
),
|
||
));
|
||
context.read<EditorBloc>().add(ToolChanged(EditorTool.select));
|
||
}
|
||
|
||
/// 元素层 — 所有日记元素叠加显示
|
||
Widget _buildElementLayer(BuildContext context, EditorState state) {
|
||
// 按 zIndex 排序
|
||
final sorted = List<JournalElement>.from(state.elements)
|
||
..sort((a, b) => a.zIndex.compareTo(b.zIndex));
|
||
|
||
return Stack(
|
||
children: sorted.map((element) {
|
||
return DraggableElement(
|
||
key: ValueKey(element.id),
|
||
element: element,
|
||
isSelected: state.selectedElementId == element.id,
|
||
onTap: (id) {
|
||
context.read<EditorBloc>().add(ElementSelected(id));
|
||
},
|
||
onMoved: (id, x, y) {
|
||
context.read<EditorBloc>().add(ElementMoved(
|
||
elementId: id,
|
||
positionX: x,
|
||
positionY: y,
|
||
));
|
||
},
|
||
onDeleted: (id) {
|
||
context.read<EditorBloc>().add(ElementRemoved(id));
|
||
},
|
||
);
|
||
}).toList(),
|
||
);
|
||
}
|
||
|
||
/// 空状态提示
|
||
Widget _buildEmptyHint(BuildContext context) {
|
||
return Center(
|
||
child: Column(
|
||
mainAxisSize: MainAxisSize.min,
|
||
children: [
|
||
Icon(
|
||
Icons.draw_rounded,
|
||
size: 48,
|
||
color: Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.15),
|
||
),
|
||
const SizedBox(height: DesignTokens.spacing12),
|
||
Text(
|
||
'在这里开始书写吧 ✏️',
|
||
style: Theme.of(context).textTheme.bodyLarge?.copyWith(
|
||
color: Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.3),
|
||
),
|
||
),
|
||
],
|
||
),
|
||
);
|
||
}
|
||
}
|
||
|
||
/// 图片来源按钮 — 拍照 / 从相册
|
||
class _ImageSourceButton extends StatelessWidget {
|
||
final IconData icon;
|
||
final String label;
|
||
final VoidCallback onTap;
|
||
|
||
const _ImageSourceButton({
|
||
required this.icon,
|
||
required this.label,
|
||
required this.onTap,
|
||
});
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
return GestureDetector(
|
||
onTap: onTap,
|
||
child: Container(
|
||
width: 100,
|
||
height: 100,
|
||
decoration: BoxDecoration(
|
||
color: Theme.of(context).colorScheme.surface,
|
||
borderRadius: BorderRadius.circular(16),
|
||
boxShadow: [
|
||
BoxShadow(
|
||
color: Colors.black.withValues(alpha: 0.1),
|
||
blurRadius: 10,
|
||
offset: const Offset(0, 2),
|
||
),
|
||
],
|
||
),
|
||
child: Column(
|
||
mainAxisAlignment: MainAxisAlignment.center,
|
||
children: [
|
||
Icon(icon, size: 32, color: Theme.of(context).colorScheme.primary),
|
||
const SizedBox(height: 8),
|
||
Text(label, style: Theme.of(context).textTheme.bodySmall),
|
||
],
|
||
),
|
||
),
|
||
);
|
||
}
|
||
}
|