nc-photos/lib/widget/viewer_detail_pane.dart
2021-04-20 00:16:13 +08:00

427 lines
13 KiB
Dart

import 'dart:io';
import 'package:android_intent/android_intent.dart';
import 'package:exifdart/exifdart.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';
import 'package:intl/intl.dart';
import 'package:logging/logging.dart';
import 'package:nc_photos/account.dart';
import 'package:nc_photos/double_extension.dart';
import 'package:nc_photos/entity/album.dart';
import 'package:nc_photos/entity/exif.dart';
import 'package:nc_photos/entity/file.dart';
import 'package:nc_photos/exception_util.dart' as exception_util;
import 'package:nc_photos/iterable_extension.dart';
import 'package:nc_photos/k.dart' as k;
import 'package:nc_photos/mobile/platform.dart'
if (dart.library.html) 'package:nc_photos/web/platform.dart' as platform;
import 'package:nc_photos/platform/features.dart' as features;
import 'package:nc_photos/snack_bar_manager.dart';
import 'package:nc_photos/theme.dart';
import 'package:nc_photos/use_case/remove.dart';
import 'package:nc_photos/use_case/update_album.dart';
import 'package:nc_photos/widget/album_picker_dialog.dart';
import 'package:path/path.dart';
import 'package:tuple/tuple.dart';
class ViewerDetailPane extends StatefulWidget {
const ViewerDetailPane({
Key key,
@required this.account,
@required this.file,
}) : super(key: key);
@override
createState() => _ViewerDetailPaneState();
final Account account;
final File file;
}
class _ViewerDetailPaneState extends State<ViewerDetailPane> {
@override
initState() {
super.initState();
if (widget.file.metadata == null) {
_log.info("[initState] Metadata missing in File");
} else {
_log.info("[initState] Metadata exists in File");
WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
_updateMetadata(widget.file.metadata.imageWidth,
widget.file.metadata.imageHeight, widget.file.metadata.exif);
});
}
}
@override
build(BuildContext context) {
final dateTime = (_dateTime ?? widget.file.lastModified).toLocal();
final dateStr = DateFormat(DateFormat.YEAR_ABBR_MONTH_DAY).format(dateTime);
final timeStr = DateFormat(DateFormat.HOUR_MINUTE).format(dateTime);
String sizeSubStr = "";
const space = " ";
if (_width != null && _height != null) {
final pixelCount = _width * _height;
if (pixelCount >= 500000) {
final mpCount = pixelCount / 1000000.0;
sizeSubStr += AppLocalizations.of(context)
.megapixelCount(mpCount.toStringAsFixed(1));
sizeSubStr += space;
}
sizeSubStr += _byteSizeToString(widget.file.contentLength);
}
String cameraSubStr = "";
if (_fNumber != null) {
cameraSubStr += "f/${_fNumber.toStringAsFixed(1)}$space";
}
if (_exposureTime != null) {
cameraSubStr +=
AppLocalizations.of(context).secondCountSymbol(_exposureTime);
cameraSubStr += space;
}
if (_focalLength != null) {
cameraSubStr += AppLocalizations.of(context)
.millimeterCountSymbol(_focalLength.toStringAsFixedTruncated(2));
cameraSubStr += space;
}
if (_isoSpeedRatings != null) {
cameraSubStr += "ISO$_isoSpeedRatings$space";
}
cameraSubStr = cameraSubStr.trim();
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
_DetailPaneButton(
icon: Icons.playlist_add_outlined,
label: AppLocalizations.of(context).addToAlbumTooltip,
onPressed: () => _onAddToAlbumPressed(context),
),
_DetailPaneButton(
icon: Icons.delete_outline,
label: AppLocalizations.of(context).deleteTooltip,
onPressed: () => _onDeletePressed(context),
),
],
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 32),
child: const Divider(),
),
ListTile(
leading: Icon(
Icons.image_outlined,
color: AppTheme.getSecondaryTextColor(context),
),
title: Text(basenameWithoutExtension(widget.file.path)),
subtitle: Text(widget.file.strippedPath),
),
ListTile(
leading: Icon(
Icons.calendar_today_outlined,
color: AppTheme.getSecondaryTextColor(context),
),
title: Text("$dateStr $timeStr"),
),
if (_width != null && _height != null)
ListTile(
leading: Icon(
Icons.aspect_ratio,
color: AppTheme.getSecondaryTextColor(context),
),
title: Text("$_width x $_height"),
subtitle: Text(sizeSubStr),
)
else
ListTile(
leading: Icon(
Icons.aspect_ratio,
color: AppTheme.getSecondaryTextColor(context),
),
title: Text(_byteSizeToString(widget.file.contentLength)),
),
if (_model != null)
ListTile(
leading: Icon(
Icons.camera_outlined,
color: AppTheme.getSecondaryTextColor(context),
),
title: Text(_model),
subtitle: cameraSubStr.isNotEmpty ? Text(cameraSubStr) : null,
),
if (features.isSupportMapView && _gps != null)
SizedBox(
height: 256,
child: platform.Map(
center: _gps,
zoom: 16,
onTap: _onMapTap,
),
),
],
);
}
void _onAddToAlbumPressed(BuildContext context) {
showDialog(
context: context,
builder: (_) => AlbumPickerDialog(
account: widget.account,
),
).then((value) {
if (value == null) {
// user cancelled the dialog
} else if (value is Album) {
_log.info("[_onAddToAlbumPressed] Album picked: ${value.name}");
_addToAlbum(context, value).then((_) {
SnackBarManager().showSnackBar(SnackBar(
content: Text(AppLocalizations.of(context)
.addToAlbumSuccessNotification(value.name)),
duration: k.snackBarDurationNormal,
));
}).catchError((_) {});
} else {
SnackBarManager().showSnackBar(SnackBar(
content:
Text(AppLocalizations.of(context).addToAlbumFailureNotification),
duration: k.snackBarDurationNormal,
));
}
}).catchError((e, stacktrace) {
_log.severe(
"[_onAddToAlbumPressed] Failed while showDialog", e, stacktrace);
SnackBarManager().showSnackBar(SnackBar(
content: Text(
"${AppLocalizations.of(context).addToAlbumFailureNotification}: "
"${exception_util.toUserString(e, context)}"),
duration: k.snackBarDurationNormal,
));
});
}
void _onDeletePressed(BuildContext context) async {
_log.info("[_onDeletePressed] Removing file: ${widget.file.path}");
var controller = SnackBarManager().showSnackBar(SnackBar(
content: Text(AppLocalizations.of(context).deleteProcessingNotification),
duration: k.snackBarDurationShort,
));
controller?.closed?.whenComplete(() {
controller = null;
});
try {
await Remove(FileRepo(FileCachedDataSource()),
AlbumRepo(AlbumCachedDataSource()))(widget.account, widget.file);
controller?.close();
SnackBarManager().showSnackBar(SnackBar(
content: Text(AppLocalizations.of(context).deleteSuccessNotification),
duration: k.snackBarDurationNormal,
));
Navigator.of(context).pop();
} catch (e, stacktrace) {
_log.severe("[_onDeletePressed] Failed while remove: ${widget.file.path}",
e, stacktrace);
controller?.close();
SnackBarManager().showSnackBar(SnackBar(
content:
Text("${AppLocalizations.of(context).deleteFailureNotification}: "
"${exception_util.toUserString(e, context)}"),
duration: k.snackBarDurationNormal,
));
}
}
void _onMapTap() {
if (Platform.isAndroid) {
final intent = AndroidIntent(
action: "action_view",
data: Uri.encodeFull("geo:${_gps.item1},${_gps.item2}?z=16"),
);
intent.launch();
}
}
void _updateMetadata(int imageWidth, int imageHeight, Exif exif) {
if (imageWidth != null && imageHeight != null) {
setState(() {
_width = imageWidth;
_height = imageHeight;
});
}
if (exif != null) {
_updateMetadataExif(exif);
}
}
void _updateMetadataExif(Exif exif) {
_log.info("[_updateMetadataExif] $exif");
if (exif.dateTimeOriginal != null) {
setState(() {
_dateTime = exif.dateTimeOriginal;
});
}
if (exif.make != null && exif.model != null) {
setState(() {
_model = "${exif.make} ${exif.model}";
});
}
if (exif.fNumber != null) {
setState(() {
_fNumber = exif.fNumber.toDouble();
});
}
if (exif.exposureTime != null) {
setState(() {
if (exif.exposureTime.denominator == 1) {
_exposureTime = exif.exposureTime.numerator.toString();
} else {
_exposureTime = exif.exposureTime.toString();
}
});
}
if (exif.focalLength != null) {
setState(() {
_focalLength = exif.focalLength.toDouble();
});
}
if (exif.isoSpeedRatings != null) {
setState(() {
_isoSpeedRatings = exif.isoSpeedRatings;
});
}
if (exif.gpsLatitudeRef != null &&
exif.gpsLatitude != null &&
exif.gpsLongitudeRef != null &&
exif.gpsLongitude != null) {
final lat = _gpsDmsToDouble(exif.gpsLatitude) *
(exif.gpsLatitudeRef == "S" ? -1 : 1);
final lng = _gpsDmsToDouble(exif.gpsLongitude) *
(exif.gpsLongitudeRef == "W" ? -1 : 1);
_log.fine("GPS: ($lat, $lng)");
setState(() {
_gps = Tuple2(lat, lng);
});
}
}
static double _gpsDmsToDouble(List<Rational> dms) {
double product = dms[0].toDouble();
if (dms.length > 1) {
product += dms[1].toDouble() / 60;
}
if (dms.length > 2) {
product += dms[2].toDouble() / 3600;
}
return product;
}
Future<void> _addToAlbum(BuildContext context, Album album) async {
try {
final albumRepo = AlbumRepo(AlbumCachedDataSource());
final newItem = AlbumFileItem(file: widget.file);
if (album.items
.whereType<AlbumFileItem>()
.containsIf(newItem, (a, b) => a.file.path == b.file.path)) {
// already added, do nothing
_log.info("[_addToAlbum] File already in album: ${widget.file.path}");
SnackBarManager().showSnackBar(SnackBar(
content: Text(
"${AppLocalizations.of(context).addToAlbumAlreadyAddedNotification}"),
duration: k.snackBarDurationNormal,
));
return Future.error(ArgumentError("File already in album"));
}
await UpdateAlbum(albumRepo)(
widget.account,
album.copyWith(
items: [...album.items, AlbumFileItem(file: widget.file)],
));
} catch (e, stacktrace) {
_log.severe("[_addToAlbum] Failed while updating album", e, stacktrace);
SnackBarManager().showSnackBar(SnackBar(
content: Text(
"${AppLocalizations.of(context).addToAlbumFailureNotification}: "
"${exception_util.toUserString(e, context)}"),
duration: k.snackBarDurationNormal,
));
rethrow;
}
}
// metadata
int _width;
int _height;
// EXIF data
DateTime _dateTime;
String _model;
double _fNumber;
String _exposureTime;
double _focalLength;
int _isoSpeedRatings;
Tuple2<double, double> _gps;
static final _log =
Logger("widget.viewer_detail_pane._ViewerDetailPaneState");
}
class _DetailPaneButton extends StatelessWidget {
const _DetailPaneButton({Key key, this.icon, this.label, this.onPressed})
: super(key: key);
@override
build(BuildContext context) {
return TextButton(
onPressed: onPressed,
child: SizedBox(
width: 96,
height: 96,
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
children: [
Icon(
icon,
color: AppTheme.getPrimaryTextColor(context),
),
const SizedBox(height: 4),
Text(
label,
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 12,
color: AppTheme.getSecondaryTextColor(context),
),
),
],
),
),
),
);
}
final IconData icon;
final String label;
final VoidCallback onPressed;
}
String _byteSizeToString(int byteSize) {
const units = ["B", "KB", "MB", "GB"];
var remain = byteSize.toDouble();
int i = 0;
while (i < units.length) {
final next = remain / 1024;
if (next < 1) {
break;
}
remain = next;
++i;
}
return "${remain.toStringAsFixed(2)}${units[i]}";
}