Files
venera/lib/pages/reader/scaffold.dart
2025-08-24 17:57:35 +08:00

1046 lines
29 KiB
Dart

part of 'reader.dart';
class _ReaderScaffold extends StatefulWidget {
const _ReaderScaffold({required this.child});
final Widget child;
@override
State<_ReaderScaffold> createState() => _ReaderScaffoldState();
}
class _ReaderScaffoldState extends State<_ReaderScaffold> {
bool _isOpen = false;
static const kTopBarHeight = 56.0;
static const kBottomBarHeight = 105.0;
bool get isOpen => _isOpen;
bool get isReversed =>
context.reader.mode == ReaderMode.galleryRightToLeft ||
context.reader.mode == ReaderMode.continuousRightToLeft;
int showFloatingButtonValue = 0;
var lastValue = 0;
_ReaderGestureDetectorState? _gestureDetectorState;
void setFloatingButton(int value) {
lastValue = showFloatingButtonValue;
if (value == 0) {
if (showFloatingButtonValue != 0) {
showFloatingButtonValue = 0;
update();
}
}
if (value == 1 && showFloatingButtonValue == 0) {
showFloatingButtonValue = 1;
update();
} else if (value == -1 && showFloatingButtonValue == 0) {
showFloatingButtonValue = -1;
update();
}
}
_DragListener? _imageFavoriteDragListener;
void addDragListener() async {
if (!mounted) return;
var readerMode = context.reader.mode;
// 横向阅读的时候, 如果纵向滑就触发收藏, 纵向阅读的时候, 如果横向滑动就触发收藏
if (appdata.settings['quickCollectImage'] == 'Swipe') {
if (_imageFavoriteDragListener == null) {
double distance = 0;
_imageFavoriteDragListener = _DragListener(
onMove: (offset) {
switch (readerMode) {
case ReaderMode.continuousTopToBottom:
case ReaderMode.galleryTopToBottom:
distance += offset.dx;
case ReaderMode.continuousLeftToRight:
case ReaderMode.galleryLeftToRight:
case ReaderMode.galleryRightToLeft:
case ReaderMode.continuousRightToLeft:
distance += offset.dy;
}
},
onEnd: () {
if (distance.abs() > 150) {
addImageFavorite();
}
distance = 0;
},
);
}
_gestureDetectorState!.addDragListener(_imageFavoriteDragListener!);
} else if (_imageFavoriteDragListener != null) {
_gestureDetectorState!.removeDragListener(_imageFavoriteDragListener!);
}
}
@override
void initState() {
sliderFocus.canRequestFocus = false;
sliderFocus.addListener(() {
if (sliderFocus.hasFocus) {
sliderFocus.nextFocus();
}
});
if (rotation != null) {
SystemChrome.setPreferredOrientations(DeviceOrientation.values);
}
super.initState();
Future.delayed(const Duration(milliseconds: 200), addDragListener);
}
@override
void dispose() {
sliderFocus.dispose();
super.dispose();
}
void openOrClose() {
if (!_isOpen) {
SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
} else {
if (!appdata.settings['showSystemStatusBar']) {
SystemChrome.setEnabledSystemUIMode(SystemUiMode.immersive);
} else {
SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
}
}
setState(() {
_isOpen = !_isOpen;
});
}
bool? rotation;
void update() {
setState(() {});
}
@override
Widget build(BuildContext context) {
return Stack(
children: [
Positioned.fill(child: widget.child),
if (appdata.settings['showPageNumberInReader'] == true)
buildPageInfoText(),
buildStatusInfo(),
AnimatedPositioned(
duration: const Duration(milliseconds: 180),
right: 16,
bottom: showFloatingButtonValue == 0 ? -58 : 36,
child: buildEpChangeButton(),
),
AnimatedPositioned(
duration: const Duration(milliseconds: 180),
top: _isOpen ? 0 : -(kTopBarHeight + context.padding.top),
left: 0,
right: 0,
height: kTopBarHeight + context.padding.top,
child: buildTop(),
),
AnimatedPositioned(
duration: const Duration(milliseconds: 180),
bottom: _isOpen
? 0
: -(kBottomBarHeight + MediaQuery.of(context).padding.bottom),
left: 0,
right: 0,
child: buildBottom(),
),
],
);
}
Widget buildTop() {
return BlurEffect(
child: Container(
padding: EdgeInsets.only(top: context.padding.top),
decoration: BoxDecoration(
color: context.colorScheme.surface.toOpacity(0.92),
border: Border(
bottom: BorderSide(color: Colors.grey.toOpacity(0.5), width: 0.5),
),
),
child: Row(
children: [
const SizedBox(width: 8),
const BackButton(),
const SizedBox(width: 8),
Expanded(
child: Text(
context.reader.widget.name,
style: ts.s18,
maxLines: 1,
overflow: TextOverflow.ellipsis,
),
),
const SizedBox(width: 8),
Tooltip(
message: "Settings".tl,
child: IconButton(
icon: const Icon(Icons.settings),
onPressed: openSetting,
),
),
const SizedBox(width: 8),
],
),
),
);
}
bool isLiked() {
return ImageFavoriteManager().has(
context.reader.cid,
context.reader.type.sourceKey,
context.reader.eid,
context.reader.page,
context.reader.chapter,
);
}
void addImageFavorite() async {
try {
if (context.reader.images![0].contains('file://')) {
showToast(
message: "Local comic collection is not supported at present".tl,
context: context,
);
return;
}
String id = context.reader.cid;
int ep = context.reader.chapter;
String eid = context.reader.eid;
String title = context.reader.history!.title;
String subTitle = context.reader.history!.subtitle;
int maxPage = context.reader.images!.length;
int? page = await selectImage();
if (page == null) return;
page += 1;
String sourceKey = context.reader.type.sourceKey;
String imageKey = context.reader.images![page - 1];
List<String> tags = context.reader.widget.tags;
String author = context.reader.widget.author;
var epName =
context.reader.widget.chapters?.titles.elementAtOrNull(
context.reader.chapter - 1,
) ??
"E${context.reader.chapter}";
var translatedTags = tags.map((e) => e.translateTagsToCN).toList();
if (isLiked()) {
if (page == firstPage) {
showToast(
message: "The cover cannot be uncollected here".tl,
context: context,
);
return;
}
ImageFavoriteManager().deleteImageFavorite([
ImageFavorite(page, imageKey, null, eid, id, ep, sourceKey, epName),
]);
showToast(
message: "Uncollected the image".tl,
context: context,
seconds: 1,
);
} else {
var imageFavoritesComic =
ImageFavoriteManager().find(id, sourceKey) ??
ImageFavoritesComic(
id,
[],
title,
sourceKey,
tags,
translatedTags,
DateTime.now(),
author,
{},
subTitle,
maxPage,
);
ImageFavorite imageFavorite = ImageFavorite(
page,
imageKey,
null,
eid,
id,
ep,
sourceKey,
epName,
);
ImageFavoritesEp? imageFavoritesEp = imageFavoritesComic
.imageFavoritesEp
.firstWhereOrNull((e) {
return e.ep == ep;
});
if (imageFavoritesEp == null) {
if (page != firstPage) {
var copy = imageFavorite.copyWith(
page: firstPage,
isAutoFavorite: true,
imageKey: context.reader.images![0],
);
// 不是第一页的话, 自动塞一个封面进去
imageFavoritesEp = ImageFavoritesEp(
eid,
ep,
[copy, imageFavorite],
epName,
maxPage,
);
} else {
imageFavoritesEp = ImageFavoritesEp(
eid,
ep,
[imageFavorite],
epName,
maxPage,
);
}
imageFavoritesComic.imageFavoritesEp.add(imageFavoritesEp);
} else {
if (imageFavoritesEp.eid != eid) {
// 空字符串说明是从pica导入的, 那我们就手动刷一遍保证一致
if (imageFavoritesEp.eid == "") {
imageFavoritesEp.eid == eid;
} else {
// 避免多章节漫画源的章节顺序发生变化, 如果情况比较多, 做一个以eid为准更新ep的功能
showToast(
message:
"The chapter order of the comic may have changed, temporarily not supported for collection"
.tl,
context: context,
);
return;
}
}
imageFavoritesEp.imageFavorites.add(imageFavorite);
}
ImageFavoriteManager().addOrUpdateOrDelete(imageFavoritesComic);
showToast(
message: "Successfully collected".tl,
context: context,
seconds: 1,
);
}
update();
} catch (e, stackTrace) {
Log.error("Image Favorite", e, stackTrace);
showToast(message: e.toString(), context: context, seconds: 1);
}
}
Widget buildBottom() {
var text = "E${context.reader.chapter} : P${context.reader.page}";
if (context.reader.widget.chapters == null) {
text = "P${context.reader.page}";
}
final buttons = [
Tooltip(
message: "Collect the image".tl,
child: IconButton(
icon: Icon(isLiked() ? Icons.favorite : Icons.favorite_border),
onPressed: addImageFavorite,
),
),
if (App.isDesktop)
Tooltip(
message: "${"Full Screen".tl}(F12)",
child: IconButton(
icon: const Icon(Icons.fullscreen),
onPressed: () {
context.reader.fullscreen();
},
),
),
if (App.isAndroid)
Tooltip(
message: "Screen Rotation".tl,
child: IconButton(
icon: () {
if (rotation == null) {
return const Icon(Icons.screen_rotation);
} else if (rotation == false) {
return const Icon(Icons.screen_lock_portrait);
} else {
return const Icon(Icons.screen_lock_landscape);
}
}.call(),
onPressed: () {
if (rotation == null) {
setState(() {
rotation = false;
});
SystemChrome.setPreferredOrientations([
DeviceOrientation.portraitUp,
DeviceOrientation.portraitDown,
]);
} else if (rotation == false) {
setState(() {
rotation = true;
});
SystemChrome.setPreferredOrientations([
DeviceOrientation.landscapeLeft,
DeviceOrientation.landscapeRight,
]);
} else {
setState(() {
rotation = null;
});
SystemChrome.setPreferredOrientations(DeviceOrientation.values);
}
},
),
),
Tooltip(
message: "Auto Page Turning".tl,
child: IconButton(
icon: context.reader.autoPageTurningTimer != null
? const Icon(Icons.timer)
: const Icon(Icons.timer_sharp),
onPressed: () {
context.reader.autoPageTurning(
context.reader.cid,
context.reader.type,
);
update();
},
),
),
if (context.reader.widget.chapters != null)
Tooltip(
message: "Chapters".tl,
child: IconButton(
icon: const Icon(Icons.library_books),
onPressed: openChapterDrawer,
),
),
Tooltip(
message: "Save Image".tl,
child: IconButton(
icon: const Icon(Icons.download),
onPressed: saveCurrentImage,
),
),
Tooltip(
message: "Share".tl,
child: IconButton(icon: const Icon(Icons.share), onPressed: share),
),
];
Widget child = SizedBox(
height: kBottomBarHeight,
child: Column(
children: [
const SizedBox(height: 8),
Row(
children: [
const SizedBox(width: 8),
IconButton.filledTonal(
onPressed: () => !isReversed
? context.reader.chapter > 1
? context.reader.toPrevChapter()
: context.reader.toPage(
context.reader.cid,
context.reader.type,
1,
)
: context.reader.chapter < context.reader.maxChapter
? context.reader.toNextChapter()
: context.reader.toPage(
context.reader.cid,
context.reader.type,
context.reader.maxPage,
),
icon: const Icon(Icons.first_page),
),
Expanded(child: buildSlider()),
IconButton.filledTonal(
onPressed: () => !isReversed
? context.reader.chapter < context.reader.maxChapter
? context.reader.toNextChapter()
: context.reader.toPage(
context.reader.cid,
context.reader.type,
context.reader.maxPage,
)
: context.reader.chapter > 1
? context.reader.toPrevChapter()
: context.reader.toPage(
context.reader.cid,
context.reader.type,
1,
),
icon: const Icon(Icons.last_page),
),
const SizedBox(width: 8),
],
),
LayoutBuilder(
builder: (context, constrains) {
return Row(
children: [
if ((constrains.maxWidth - buttons.length * 42) > 80)
Container(
height: 24,
padding: const EdgeInsets.fromLTRB(6, 2, 6, 0),
decoration: BoxDecoration(
color: Theme.of(context).colorScheme.tertiaryContainer,
borderRadius: BorderRadius.circular(8),
),
child: Center(child: Text(text)),
).paddingLeft(16),
const Spacer(),
...buttons,
const SizedBox(width: 4),
],
);
},
),
],
),
);
return BlurEffect(
child: Container(
decoration: BoxDecoration(
color: context.colorScheme.surface.toOpacity(0.92),
border: isOpen
? Border(
top: BorderSide(
color: Colors.grey.toOpacity(0.5),
width: 0.5,
),
)
: null,
),
padding: EdgeInsets.only(bottom: context.padding.bottom),
child: child,
),
);
}
var sliderFocus = FocusNode();
Widget buildSlider() {
return CustomSlider(
focusNode: sliderFocus,
value: context.reader.page.toDouble(),
min: 1,
max: context.reader.maxPage
.clamp(context.reader.page, 1 << 16)
.toDouble(),
reversed: isReversed,
divisions: (context.reader.maxPage - 1).clamp(2, 1 << 16),
onChanged: (i) {
context.reader.toPage(
context.reader.cid,
context.reader.type,
i.toInt(),
);
},
);
}
Widget buildPageInfoText() {
var epName =
context.reader.widget.chapters?.titles.elementAtOrNull(
context.reader.chapter - 1,
) ??
"E${context.reader.chapter}";
if (epName.length > 8) {
epName = "${epName.substring(0, 8)}...";
}
var pageText = "${context.reader.page}/${context.reader.maxPage}";
var text = context.reader.widget.chapters != null
? "$epName : $pageText"
: pageText;
return Positioned(
bottom: 13,
left: 25,
child: Stack(
children: [
Text(
text,
style: TextStyle(
fontSize: 14,
foreground: Paint()
..style = PaintingStyle.stroke
..strokeWidth = 1.4
..color = context.colorScheme.onInverseSurface,
),
),
Text(text),
],
),
);
}
Widget buildStatusInfo() {
if (appdata.settings['enableClockAndBatteryInfoInReader']) {
return Positioned(
bottom: 13,
right: 25,
child: Row(
children: [
_ClockWidget(),
const SizedBox(width: 10),
_BatteryWidget(),
],
),
);
} else {
return const SizedBox.shrink();
}
}
void openChapterDrawer() {
showSideBar(
context,
context.reader.widget.chapters!.isGrouped
? _GroupedChaptersView(context.reader)
: _ChaptersView(context.reader),
width: 400,
);
}
void saveCurrentImage() async {
var data = await selectImageToData();
if (data == null) {
return;
}
var fileType = detectFileType(data);
var filename = "${context.reader.page}${fileType.ext}";
saveFile(data: data, filename: filename);
}
void share() async {
var data = await selectImageToData();
if (data == null) {
return;
}
var fileType = detectFileType(data);
var filename = "${context.reader.page}${fileType.ext}";
Share.shareFile(data: data, filename: filename, mime: fileType.mime);
}
void openSetting() {
showSideBar(
context,
ReaderSettings(
comicId: context.reader.cid,
comicSource: context.reader.type.sourceKey,
onChanged: (key) {
if (key == "readerMode") {
context.reader.mode = ReaderMode.fromKey(
appdata.settings.getReaderSetting(
context.reader.cid,
context.reader.type.sourceKey,
key,
),
);
}
if (key == "enableTurnPageByVolumeKey") {
if (appdata.settings.getReaderSetting(
context.reader.cid,
context.reader.type.sourceKey,
key,
)) {
context.reader.handleVolumeEvent(
context.reader.cid,
context.reader.type,
);
} else {
context.reader.stopVolumeEvent();
}
}
if (key == "quickCollectImage") {
addDragListener();
}
context.reader.update();
},
),
width: 400,
);
}
Widget buildEpChangeButton() {
if (context.reader.widget.chapters == null) return const SizedBox();
switch (showFloatingButtonValue) {
case 0:
return Container(
width: 58,
height: 58,
clipBehavior: Clip.antiAlias,
decoration: BoxDecoration(
color: Theme.of(context).colorScheme.primaryContainer,
borderRadius: BorderRadius.circular(16),
),
child: Icon(
lastValue == 1
? Icons.arrow_forward_ios
: Icons.arrow_back_ios_outlined,
size: 24,
color: Theme.of(context).colorScheme.onPrimaryContainer,
),
);
case -1:
case 1:
return SizedBox(
width: 58,
height: 58,
child: Material(
color: Theme.of(context).colorScheme.primaryContainer,
borderRadius: BorderRadius.circular(16),
elevation: 2,
child: InkWell(
onTap: () {
if (showFloatingButtonValue == 1) {
context.reader.toNextChapter();
} else if (showFloatingButtonValue == -1) {
context.reader.toPrevChapter();
}
setFloatingButton(0);
},
borderRadius: BorderRadius.circular(16),
child: Center(
child: Icon(
showFloatingButtonValue == 1
? Icons.arrow_forward_ios
: Icons.arrow_back_ios_outlined,
size: 24,
color: Theme.of(context).colorScheme.onPrimaryContainer,
),
),
),
),
);
}
return const SizedBox();
}
/// If there is only one image on screen, return it.
///
/// If there are multiple images on screen,
/// show an overlay to let the user select an image.
///
/// The return value is the index of the selected image.
Future<int?> selectImage() async {
var reader = context.reader;
var imageViewController = context.reader._imageViewController;
if (imageViewController is _GalleryModeState && reader.imagesPerPage == 1) {
return reader.page - 1;
} else {
var location = await _showSelectImageOverlay();
if (location == null) {
return null;
}
var imageKey = imageViewController!.getImageKeyByOffset(location);
if (imageKey == null) {
return null;
}
return reader.images!.indexOf(imageKey);
}
}
/// Same as [selectImage], but return the image data.
Future<Uint8List?> selectImageToData() async {
var i = await selectImage();
if (i == null) {
return null;
}
var imageKey = context.reader.images![i];
if (imageKey.startsWith("file://")) {
return await File(imageKey.substring(7)).readAsBytes();
} else {
return (await CacheManager().findCache(
"$imageKey@${context.reader.type.sourceKey}@${context.reader.cid}@${context.reader.eid}",
))!.readAsBytes();
}
}
Future<Offset?> _showSelectImageOverlay() {
if (_isOpen) {
openOrClose();
}
var completer = Completer<Offset?>();
var overlay = Overlay.of(context);
OverlayEntry? entry;
entry = OverlayEntry(
builder: (context) {
return Positioned.fill(
child: _SelectImageOverlayContent(
onTap: (offset) {
completer.complete(offset);
entry!.remove();
},
onDispose: () {
if (!completer.isCompleted) {
completer.complete(null);
}
},
),
);
},
);
overlay.insert(entry);
return completer.future;
}
}
class _BatteryWidget extends StatefulWidget {
@override
_BatteryWidgetState createState() => _BatteryWidgetState();
}
class _BatteryWidgetState extends State<_BatteryWidget> {
late Battery _battery;
late int _batteryLevel = 100;
Timer? _timer;
bool _hasBattery = false;
BatteryState state = BatteryState.unknown;
@override
void initState() {
super.initState();
_battery = Battery();
_checkBatteryAvailability();
}
void _checkBatteryAvailability() async {
try {
_batteryLevel = await _battery.batteryLevel;
state = await _battery.batteryState;
if (_batteryLevel > 0 && state != BatteryState.unknown) {
setState(() {
_hasBattery = true;
});
_timer = Timer.periodic(const Duration(seconds: 1), (timer) {
_battery.batteryLevel.then((level) {
if (_batteryLevel != level) {
setState(() {
_batteryLevel = level;
});
}
});
});
}
} catch (_) {
// ignore
}
}
@override
Widget build(BuildContext context) {
if (!_hasBattery) {
return const SizedBox.shrink(); //Empty Widget
}
return _batteryInfo(_batteryLevel);
}
@override
void dispose() {
_timer?.cancel();
super.dispose();
}
Widget _batteryInfo(int batteryLevel) {
IconData batteryIcon;
Color batteryColor = context.colorScheme.onSurface;
if (state == BatteryState.charging) {
batteryIcon = Icons.battery_charging_full;
} else if (batteryLevel >= 96) {
batteryIcon = Icons.battery_full_sharp;
} else if (batteryLevel >= 84) {
batteryIcon = Icons.battery_6_bar_sharp;
} else if (batteryLevel >= 72) {
batteryIcon = Icons.battery_5_bar_sharp;
} else if (batteryLevel >= 60) {
batteryIcon = Icons.battery_4_bar_sharp;
} else if (batteryLevel >= 48) {
batteryIcon = Icons.battery_3_bar_sharp;
} else if (batteryLevel >= 36) {
batteryIcon = Icons.battery_2_bar_sharp;
} else if (batteryLevel >= 24) {
batteryIcon = Icons.battery_1_bar_sharp;
} else if (batteryLevel >= 12) {
batteryIcon = Icons.battery_0_bar_sharp;
} else {
batteryIcon = Icons.battery_alert_sharp;
batteryColor = Colors.red;
}
return Row(
children: [
Icon(
batteryIcon,
size: 16,
color: batteryColor,
// Stroke
shadows: List.generate(9, (index) {
if (index == 4) {
return null;
}
double offsetX = (index % 3 - 1) * 0.8;
double offsetY = ((index / 3).floor() - 1) * 0.8;
return Shadow(
color: context.colorScheme.onInverseSurface,
offset: Offset(offsetX, offsetY),
);
}).whereType<Shadow>().toList(),
),
Stack(
children: [
Text(
'$batteryLevel%',
style: TextStyle(
fontSize: 14,
foreground: Paint()
..style = PaintingStyle.stroke
..strokeWidth = 1.4
..color = context.colorScheme.onInverseSurface,
),
),
Text('$batteryLevel%'),
],
),
],
);
}
}
class _ClockWidget extends StatefulWidget {
@override
_ClockWidgetState createState() => _ClockWidgetState();
}
class _ClockWidgetState extends State<_ClockWidget> {
late String _currentTime;
late Timer _timer;
@override
void initState() {
super.initState();
_currentTime = _getCurrentTime();
_timer = Timer.periodic(const Duration(seconds: 1), (timer) {
final time = _getCurrentTime();
if (_currentTime != time) {
setState(() {
_currentTime = time;
});
}
});
}
String _getCurrentTime() {
final now = DateTime.now();
return "${now.hour.toString().padLeft(2, '0')}:${now.minute.toString().padLeft(2, '0')}";
}
@override
void dispose() {
_timer.cancel();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Stack(
children: [
Text(
_currentTime,
style: TextStyle(
fontSize: 14,
foreground: Paint()
..style = PaintingStyle.stroke
..strokeWidth = 1.4
..color = context.colorScheme.onInverseSurface,
),
),
Text(_currentTime),
],
);
}
}
class _SelectImageOverlayContent extends StatefulWidget {
const _SelectImageOverlayContent({
required this.onTap,
required this.onDispose,
});
final void Function(Offset) onTap;
final void Function() onDispose;
@override
State<_SelectImageOverlayContent> createState() =>
_SelectImageOverlayContentState();
}
class _SelectImageOverlayContentState
extends State<_SelectImageOverlayContent> {
@override
void dispose() {
widget.onDispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return GestureDetector(
behavior: HitTestBehavior.opaque,
onTapUp: (details) {
widget.onTap(details.globalPosition);
},
child: Container(
color: Colors.black.withAlpha(50),
child: Align(
alignment: Alignment(0, -0.8),
child: Container(
width: 232,
height: 42,
decoration: BoxDecoration(
color: context.colorScheme.surface,
borderRadius: BorderRadius.circular(8),
border: Border.all(color: context.colorScheme.outlineVariant),
),
child: Row(
children: [
const SizedBox(width: 8),
const Icon(Icons.info_outline),
const SizedBox(width: 16),
Text(
"Click to select an image".tl,
style: TextStyle(
fontSize: 16,
color: context.colorScheme.onSurface,
),
),
],
),
),
),
),
);
}
}