aves/lib/model/entry_cache.dart
2021-06-06 14:48:45 +09:00

50 lines
1.4 KiB
Dart

import 'dart:async';
import 'package:aves/image_providers/thumbnail_provider.dart';
import 'package:aves/image_providers/uri_image_provider.dart';
class EntryCache {
static final requestExtents = <double>{};
static Future<void> evict(
String uri,
String mimeType,
int? dateModifiedSecs,
int oldRotationDegrees,
bool oldIsFlipped,
) async {
// TODO TLAD provide pageId parameter for multi page items, if someday image editing features are added for them
int? pageId;
// evict fullscreen image
await UriImage(
uri: uri,
mimeType: mimeType,
pageId: pageId,
rotationDegrees: oldRotationDegrees,
isFlipped: oldIsFlipped,
).evict();
// evict low quality thumbnail (without specified extents)
await ThumbnailProvider(ThumbnailProviderKey(
uri: uri,
mimeType: mimeType,
pageId: pageId,
dateModifiedSecs: dateModifiedSecs ?? 0,
rotationDegrees: oldRotationDegrees,
isFlipped: oldIsFlipped,
)).evict();
await Future.forEach<double>(
requestExtents,
(extent) => ThumbnailProvider(ThumbnailProviderKey(
uri: uri,
mimeType: mimeType,
pageId: pageId,
dateModifiedSecs: dateModifiedSecs ?? 0,
rotationDegrees: oldRotationDegrees,
isFlipped: oldIsFlipped,
extent: extent,
)).evict());
}
}