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Local image file viewer

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This commit is contained in:
Ming Ming 2022-05-06 13:23:04 +08:00
parent c38ace893d
commit 39840c8e45
1 changed files with 69 additions and 4 deletions
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73
app/lib/widget/image_viewer.dart
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@ -6,10 +6,75 @@ import 'package:nc_photos/account.dart';
import 'package:nc_photos/api/api.dart';
import 'package:nc_photos/api/api_util.dart' as api_util;
import 'package:nc_photos/cache_manager_util.dart';
import 'package:nc_photos/entity/file.dart';
import 'package:nc_photos/entity/file.dart' as app;
import 'package:nc_photos/entity/local_file.dart';
import 'package:nc_photos/k.dart' as k;
import 'package:nc_photos/mobile/android/content_uri_image_provider.dart';
import 'package:nc_photos/widget/cached_network_image_mod.dart' as mod;
class LocalImageViewer extends StatefulWidget {
const LocalImageViewer({
Key? key,
required this.file,
required this.canZoom,
this.onLoaded,
this.onHeightChanged,
this.onZoomStarted,
this.onZoomEnded,
}) : super(key: key);
@override
createState() => _LocalImageViewerState();
final LocalFile file;
final bool canZoom;
final VoidCallback? onLoaded;
final ValueChanged<double>? onHeightChanged;
final VoidCallback? onZoomStarted;
final VoidCallback? onZoomEnded;
}
class _LocalImageViewerState extends State<LocalImageViewer> {
@override
build(BuildContext context) {
final ImageProvider provider;
if (widget.file is LocalUriFile) {
provider = ContentUriImage((widget.file as LocalUriFile).uri);
} else {
throw ArgumentError("Invalid file");
}
return _ImageViewer(
canZoom: widget.canZoom,
onHeightChanged: widget.onHeightChanged,
onZoomStarted: widget.onZoomStarted,
onZoomEnded: widget.onZoomEnded,
child: Image(
image: provider,
fit: BoxFit.contain,
frameBuilder: (context, child, frame, wasSynchronouslyLoaded) {
WidgetsBinding.instance!.addPostFrameCallback((_) {
_onItemLoaded();
});
return child;
},
),
);
}
void _onItemLoaded() {
if (!_isLoaded) {
_log.info("[_onItemLoaded] ${widget.file.logTag}");
_isLoaded = true;
widget.onLoaded?.call();
}
}
var _isLoaded = false;
static final _log = Logger("widget.image_viewer._LocalImageViewerState");
}
class RemoteImageViewer extends StatefulWidget {
const RemoteImageViewer({
Key? key,
@ -25,7 +90,7 @@ class RemoteImageViewer extends StatefulWidget {
@override
createState() => _RemoteImageViewerState();
static void preloadImage(Account account, File file) {
static void preloadImage(Account account, app.File file) {
LargeImageCacheManager.inst.getFileStream(
_getImageUrl(account, file),
headers: {
@ -35,7 +100,7 @@ class RemoteImageViewer extends StatefulWidget {
}
final Account account;
final File file;
final app.File file;
final bool canZoom;
final VoidCallback? onLoaded;
final ValueChanged<double>? onHeightChanged;
@ -264,7 +329,7 @@ class _ImageViewerState extends State<_ImageViewer>
static final _log = Logger("widget.image_viewer._ImageViewerState");
}
String _getImageUrl(Account account, File file) {
String _getImageUrl(Account account, app.File file) {
if (file.contentType == "image/gif") {
return api_util.getFileUrl(account, file);
} else {