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feat: Enhance chapter list and TTS functionality
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- Introduced ChapterListQuery and ChapterListPage classes for better chapter management.
- Updated chapterListProvider to handle pagination and canonical ID resolution.
- Improved ReaderScreen with enhanced TTS features, including auto-scroll to active paragraph and better handling of TTS state.
- Added TtsPlayerWidget with compact mode and improved UI for TTS controls.
- Enhanced TtsService to manage speech segments and background mode for TTS.
- Implemented battery optimization checks for TTS background mode on Android.
- Updated main.dart to ensure proper error handling in a zoned environment.
This commit is contained in:
virtus
2026-04-07 18:49:29 +07:00
parent 1afff18f4d
commit 6946083aee
27 changed files with 1590 additions and 157 deletions
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lib/features/reader/presentation/reader_screen.dart
+278 -13
View File
@@ -1,6 +1,7 @@
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/services.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:go_router/go_router.dart';
@@ -33,6 +34,10 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
double _lastScrollOffset = 0;
double _scrollDeltaSinceToggle = 0;
int _chapterDirection = 0; // -1: previous, 1: next
int _lastAutoScrolledParagraph = -1;
int _lastTtsCompletedCount = 0;
String? _autoStartQueuedChapterId;
final List<GlobalKey> _paragraphKeys = [];
List<String> _paragraphsOf(String content) => content
.split(RegExp(r'\n+'))
@@ -61,6 +66,112 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
}
}
Widget _buildParagraphText({
required BuildContext context,
required String paragraph,
required TextStyle style,
required TextAlign textAlign,
required bool isActiveParagraph,
required int highlightStart,
required int highlightEnd,
}) {
if (!isActiveParagraph || highlightStart < 0 || highlightEnd <= highlightStart) {
return SelectableText(
paragraph,
textAlign: textAlign,
style: style,
);
}
final safeStart = highlightStart.clamp(0, paragraph.length);
final safeEnd = highlightEnd.clamp(0, paragraph.length);
if (safeEnd <= safeStart) {
return SelectableText(
paragraph,
textAlign: textAlign,
style: style,
);
}
final highlightStyle = style.copyWith(
backgroundColor: Theme.of(context).colorScheme.primary.withAlpha(80),
fontWeight: FontWeight.w600,
);
return RichText(
textAlign: textAlign,
text: TextSpan(
style: style,
children: [
if (safeStart > 0) TextSpan(text: paragraph.substring(0, safeStart)),
TextSpan(text: paragraph.substring(safeStart, safeEnd), style: highlightStyle),
if (safeEnd < paragraph.length) TextSpan(text: paragraph.substring(safeEnd)),
],
),
);
}
void _ensureParagraphKeys(int count) {
if (_paragraphKeys.length == count) return;
_paragraphKeys
..clear()
..addAll(List.generate(count, (_) => GlobalKey()));
_lastAutoScrolledParagraph = -1;
}
void _maybeAutoScrollToTtsParagraph(TtsState tts, int paragraphCount) {
if (tts.status == TtsStatus.idle) return;
final index = tts.activeParagraphIndex;
if (index < 0 || index >= paragraphCount) return;
if (index == _lastAutoScrolledParagraph) return;
_lastAutoScrolledParagraph = index;
WidgetsBinding.instance.addPostFrameCallback((_) {
if (!mounted) return;
final ctx = _paragraphKeys[index].currentContext;
if (ctx == null) return;
Scrollable.ensureVisible(
ctx,
alignment: 0.22,
duration: const Duration(milliseconds: 280),
curve: Curves.easeOutCubic,
);
});
}
int _firstVisibleParagraphIndex() {
if (!_scrollCtrl.hasClients || _paragraphKeys.isEmpty) return 0;
final viewportTop = _scrollCtrl.offset + 8;
final viewportBottom =
_scrollCtrl.offset + _scrollCtrl.position.viewportDimension - 8;
int? partiallyVisibleIndex;
for (var i = 0; i < _paragraphKeys.length; i++) {
final ctx = _paragraphKeys[i].currentContext;
if (ctx == null) continue;
final renderObject = ctx.findRenderObject();
if (renderObject == null || !renderObject.attached) continue;
final viewport = RenderAbstractViewport.of(renderObject);
final top = viewport.getOffsetToReveal(renderObject, 0).offset;
final bottom = viewport.getOffsetToReveal(renderObject, 1).offset;
final fullyVisible = top >= viewportTop && bottom <= viewportBottom;
if (fullyVisible) return i;
final partiallyVisible = bottom > viewportTop && top < viewportBottom;
if (partiallyVisible && partiallyVisibleIndex == null) {
partiallyVisibleIndex = i;
}
}
return partiallyVisibleIndex ?? 0;
}
@override
void initState() {
super.initState();
@@ -191,7 +302,12 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
builder: (sheetContext) {
return Consumer(
builder: (context, ref, _) {
final chaptersAsync = ref.watch(chapterListProvider(currentChapter.novelId));
final tocPage = ((currentChapter.number - 1) ~/ chapterPageSize) + 1;
final chaptersAsync = ref.watch(
chapterListProvider(
ChapterListQuery(novelId: currentChapter.novelId, page: tocPage),
),
);
return FractionallySizedBox(
heightFactor: 0.82,
child: SafeArea(
@@ -220,13 +336,14 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
child: chaptersAsync.when(
loading: () => const Center(child: CircularProgressIndicator()),
error: (e, _) => Center(child: Text('Không tải được mục lục: $e')),
data: (chapters) {
data: (pageData) {
final chapters = pageData.chapters;
if (chapters.isEmpty) {
return const Center(child: Text('Chưa có danh sách chương.'));
}
return ListView.separated(
itemCount: chapters.length,
separatorBuilder: (_, __) => const Divider(height: 1),
separatorBuilder: (_, _) => const Divider(height: 1),
itemBuilder: (context, index) {
final item = chapters[index];
final isCurrent = item.id == currentChapter.id;
@@ -264,7 +381,11 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
);
}
Future<void> _openReadingSettingsSheet(String previewContent) async {
Future<void> _openReadingSettingsSheet(
String previewContent,
String chapterId,
String chapterTitle,
) async {
await showModalBottomSheet<void>(
context: context,
isScrollControlled: true,
@@ -277,6 +398,16 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
final tts = ref.watch(ttsProvider);
final ttsNotifier = ref.read(ttsProvider.notifier);
void closeSettingsSheet() {
if (!sheetContext.mounted) return;
final route = ModalRoute.of(sheetContext);
if (route != null) {
Navigator.of(sheetContext).removeRoute(route);
return;
}
Navigator.of(sheetContext).maybePop();
}
Future<void> update(dynamic next) async {
await ref.read(readingSettingsProvider.notifier).update(next);
}
@@ -314,7 +445,7 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
child: const Text('Mặc định'),
),
IconButton(
onPressed: () => Navigator.of(context).pop(),
onPressed: closeSettingsSheet,
icon: const Icon(Icons.close),
),
],
@@ -544,7 +675,10 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
color: Theme.of(context).colorScheme.secondaryContainer,
borderRadius: BorderRadius.circular(999),
),
child: Text('${tts.speed}x', style: Theme.of(context).textTheme.labelLarge),
child: Text(
formatTtsSpeedLabel(tts.speed),
style: Theme.of(context).textTheme.labelLarge,
),
),
],
),
@@ -552,17 +686,83 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
Wrap(
spacing: 8,
runSpacing: 8,
children: [0.75, 1.0, 1.25, 1.5, 1.75].map((speed) {
children: [0.35, 0.45, 0.55, 0.65, 0.8, 1.0].map((speed) {
final selected = tts.speed == speed;
return ChoiceChip(
label: Text('${speed}x'),
label: Text(formatTtsSpeedLabel(speed)),
selected: selected,
onSelected: (_) => ttsNotifier.setSpeed(speed),
);
}).toList(),
),
const SizedBox(height: 12),
TtsPlayerWidget(content: previewContent),
SwitchListTile.adaptive(
contentPadding: EdgeInsets.zero,
title: const Text('Chạy nền cho TTS'),
subtitle: const Text(
'Tiếp tục đọc khi chuyển app hoặc tắt màn hình (Android)',
),
value: tts.backgroundModeEnabled,
onChanged: ttsNotifier.setBackgroundModeEnabled,
),
if (tts.backgroundModeEnabled)
ListTile(
contentPadding: EdgeInsets.zero,
title: const Text('Loại trừ tối ưu pin'),
subtitle: Text(
tts.batteryOptimizationIgnored
? 'Đã bật: Android sẽ ít khả năng dừng TTS khi chạy nền.'
: 'Nên bật để Android không chặn TTS khi tắt màn hình.',
),
trailing: tts.batteryOptimizationIgnored
? const Icon(Icons.verified, color: Colors.green)
: OutlinedButton(
onPressed: ttsNotifier
.ensureBatteryOptimizationIgnored,
child: const Text('Bật ngay'),
),
),
const SizedBox(height: 12),
if (tts.availableVietnameseVoices.isNotEmpty)
DropdownButtonFormField<String>(
initialValue: tts.voiceName,
isExpanded: true,
decoration: const InputDecoration(
labelText: 'Giọng đọc tiếng Việt',
border: OutlineInputBorder(),
),
items: tts.availableVietnameseVoices
.map(
(v) => DropdownMenuItem<String>(
value: v.name,
child: Text(
v.displayName,
overflow: TextOverflow.ellipsis,
),
),
)
.toList(),
onChanged: (value) {
if (value != null) {
ttsNotifier.setVoiceByName(value);
}
},
)
else
Text(
'Thiết bị không cung cấp nhiều giọng tiếng Việt. Đang dùng ${tts.voiceName ?? tts.language}.',
style: Theme.of(context).textTheme.bodySmall,
),
const SizedBox(height: 12),
TtsPlayerWidget(
content: previewContent,
contentKey: chapterId,
title: 'Chương $chapterTitle',
includeTitleOnStart: false,
resolveStartParagraphIndex:
_firstVisibleParagraphIndex,
onStarted: closeSettingsSheet,
),
],
),
),
@@ -628,8 +828,42 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
),
data: (chapter) {
final paragraphs = _paragraphsOf(chapter.content);
_ensureParagraphKeys(paragraphs.length);
final textAlign = _textAlignFor(settings.textAlign);
final novelAsync = ref.watch(novelDetailProvider(chapter.novelId));
final tts = ref.watch(ttsProvider);
final shouldHighlightTts = tts.contentKey == chapter.id &&
(tts.status == TtsStatus.playing || tts.status == TtsStatus.paused);
if (tts.completedCount > _lastTtsCompletedCount) {
_lastTtsCompletedCount = tts.completedCount;
if (tts.contentKey == chapter.id && chapter.nextChapterId != null) {
final nextChapterId = chapter.nextChapterId!;
WidgetsBinding.instance.addPostFrameCallback((_) {
if (!mounted) return;
ref.read(ttsProvider.notifier).scheduleAutoStartForChapter(nextChapterId);
context.pushReplacement(RouteNames.readerChapter(nextChapterId));
});
}
}
if (tts.pendingAutoStartChapterId == chapter.id &&
_autoStartQueuedChapterId != chapter.id) {
_autoStartQueuedChapterId = chapter.id;
WidgetsBinding.instance.addPostFrameCallback((_) {
if (!mounted) return;
final notifier = ref.read(ttsProvider.notifier);
notifier.clearPendingAutoStartChapter();
notifier.startReading(
chapter.content,
contentKey: chapter.id,
title: 'Chương ${chapter.number}: ${chapter.title}',
);
_autoStartQueuedChapterId = null;
});
}
_maybeAutoScrollToTtsParagraph(tts, paragraphs.length);
WidgetsBinding.instance.addPostFrameCallback((_) {
_initializeChapterSession(chapter);
});
@@ -645,7 +879,11 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
_TopBar(
title: _chapterTopBarTitle(chapter),
progress: _readingProgress,
onOpenSettings: () => _openReadingSettingsSheet(chapter.content),
onOpenSettings: () => _openReadingSettingsSheet(
chapter.content,
chapter.id,
'Chương ${chapter.number}: ${chapter.title}',
),
barBackgroundColor: readerBackground,
foregroundColor: readerTextColor,
),
@@ -693,7 +931,7 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
color: readerMutedColor,
),
),
error: (_, __) => const SizedBox.shrink(),
error: (_, _) => const SizedBox.shrink(),
data: (novel) => Text(
novel.title,
maxLines: 1,
@@ -727,13 +965,15 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
children: [
for (var index = 0; index < paragraphs.length; index++)
Padding(
key: _paragraphKeys[index],
padding: EdgeInsets.only(
bottom: index == paragraphs.length - 1
? 0
: settings.paragraphSpacing,
),
child: SelectableText(
paragraphs[index],
child: _buildParagraphText(
context: context,
paragraph: paragraphs[index],
textAlign: textAlign,
style: TextStyle(
color: readerTextColor,
@@ -746,6 +986,10 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
? 'Courier'
: null,
),
isActiveParagraph: shouldHighlightTts &&
tts.activeParagraphIndex == index,
highlightStart: tts.progressStart,
highlightEnd: tts.progressEnd,
),
),
],
@@ -801,6 +1045,27 @@ class _ReaderScreenState extends ConsumerState<ReaderScreen> {
),
)
: null,
bottomNavigationBar: chapterAsync.whenOrNull(
data: (chapter) {
final tts = ref.watch(ttsProvider);
final showMini = tts.contentKey == chapter.id &&
(tts.status == TtsStatus.playing || tts.status == TtsStatus.paused);
if (!showMini) return const SizedBox.shrink();
return SafeArea(
top: false,
child: Padding(
padding: const EdgeInsets.fromLTRB(12, 4, 12, 10),
child: TtsPlayerWidget(
compact: true,
content: chapter.content,
contentKey: chapter.id,
title: 'Chương ${chapter.number}: ${chapter.title}',
),
),
);
},
),
);
}
}