60 lines
1.7 KiB
Dart
60 lines
1.7 KiB
Dart
import 'package:aves/services/services.dart';
|
|
import 'package:flutter/foundation.dart';
|
|
import 'package:flutter/widgets.dart';
|
|
import 'package:flutter_svg/flutter_svg.dart';
|
|
|
|
class UriPicture extends PictureProvider<UriPicture> {
|
|
const UriPicture({
|
|
required this.uri,
|
|
required this.mimeType,
|
|
ColorFilter? colorFilter,
|
|
}) : super(colorFilter);
|
|
|
|
final String uri, mimeType;
|
|
|
|
@override
|
|
Future<UriPicture> obtainKey(PictureConfiguration picture) {
|
|
return SynchronousFuture<UriPicture>(this);
|
|
}
|
|
|
|
@override
|
|
PictureStreamCompleter load(UriPicture key, {PictureErrorListener? onError}) {
|
|
return OneFramePictureStreamCompleter(_loadAsync(key, onError: onError), informationCollector: () sync* {
|
|
yield DiagnosticsProperty<String>('uri', uri);
|
|
});
|
|
}
|
|
|
|
Future<PictureInfo?> _loadAsync(UriPicture key, {PictureErrorListener? onError}) async {
|
|
assert(key == this);
|
|
|
|
final data = await imageFileService.getSvg(uri, mimeType);
|
|
if (data.isEmpty) {
|
|
return null;
|
|
}
|
|
|
|
final decoder = SvgPicture.svgByteDecoder;
|
|
if (onError != null) {
|
|
return decoder(
|
|
data,
|
|
colorFilter,
|
|
key.toString(),
|
|
).catchError((error, stack) async {
|
|
onError(error, stack);
|
|
return Future<PictureInfo>.error(error, stack);
|
|
});
|
|
}
|
|
return decoder(data, colorFilter, key.toString());
|
|
}
|
|
|
|
@override
|
|
bool operator ==(Object other) {
|
|
if (other.runtimeType != runtimeType) return false;
|
|
return other is UriPicture && other.uri == uri && other.colorFilter == colorFilter;
|
|
}
|
|
|
|
@override
|
|
int get hashCode => hashValues(uri, colorFilter);
|
|
|
|
@override
|
|
String toString() => '$runtimeType#${shortHash(this)}{uri=$uri, mimeType=$mimeType, colorFilter=$colorFilter}';
|
|
}
|