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Fix: Avoid redundant fetch for imageInfo

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This commit is contained in:
Neeraj Gupta 2023-08-30 11:35:11 +05:30
parent 6ee182ecec
commit d1f3e2d313
1 changed files with 49 additions and 33 deletions
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82
lib/ui/viewer/file/zoomable_image.dart
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@ -1,6 +1,7 @@
import 'dart:async';
import 'dart:io';
import "package:flutter/foundation.dart";
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:logging/logging.dart';
@ -12,6 +13,7 @@ import 'package:photos/core/event_bus.dart';
import 'package:photos/db/files_db.dart';
import 'package:photos/events/files_updated_event.dart';
import 'package:photos/events/local_photos_updated_event.dart';
import "package:photos/models/file/extensions/file_props.dart";
import 'package:photos/models/file/file.dart';
import "package:photos/models/metadata/file_magic.dart";
import "package:photos/services/file_magic_service.dart";
@ -19,6 +21,7 @@ import 'package:photos/ui/common/loading_widget.dart';
import 'package:photos/utils/file_util.dart';
import 'package:photos/utils/image_util.dart';
import 'package:photos/utils/thumbnail_util.dart';
import "package:photos/utils/toast_util.dart";
class ZoomableImage extends StatefulWidget {
final EnteFile photo;
@ -251,45 +254,58 @@ class _ZoomableImageState extends State<ZoomableImage>
required ImageProvider? previewImageProvider,
required ImageProvider finalImageProvider,
}) async {
if (_photoViewController.scale == null || previewImageProvider == null) {
return;
final bool shouldFixPosition = previewImageProvider != null &&
_isZooming &&
_photoViewController.scale != null;
ImageInfo? finalImageInfo;
if(shouldFixPosition) {
if (kDebugMode) {
showToast(context,
'Updating photo scale zooming: $_isZooming and scale: ${_photoViewController.scale}');
}
final prevImageInfo = await getImageInfo(previewImageProvider);
finalImageInfo = await getImageInfo(finalImageProvider);
final scale = _photoViewController.scale! /
(finalImageInfo.image.width / prevImageInfo.image.width);
final currentPosition = _photoViewController.value.position;
final positionScaleFactor = 1 / scale;
final newPosition = currentPosition.scale(
positionScaleFactor,
positionScaleFactor,
);
_photoViewController = PhotoViewController(
initialPosition: newPosition,
initialScale: scale,
);
}
final bool canUpdateMetadata = _photo.canEditMetaInfo;
// forcefully get finalImageInfo is dimensions are not available in metadata
if (finalImageInfo == null && canUpdateMetadata && !_photo.hasDimensions) {
finalImageInfo = await getImageInfo(finalImageProvider);
}
if (finalImageInfo != null && canUpdateMetadata) {
_updateAspectRatioIfNeeded(_photo, finalImageInfo).ignore();
}
final prevImageInfo = await getImageInfo(previewImageProvider);
final finalImageInfo = await getImageInfo(finalImageProvider);
final scale = _photoViewController.scale! /
(finalImageInfo.image.width / prevImageInfo.image.width);
final currentPosition = _photoViewController.value.position;
final positionScaleFactor = 1 / scale;
final newPosition = currentPosition.scale(
positionScaleFactor,
positionScaleFactor,
);
_photoViewController = PhotoViewController(
initialPosition: newPosition,
initialScale: scale,
);
_updateAspectRatioIfNeeded(finalImageInfo).ignore();
}
// Fallback logic to finish back fill and update aspect
// ratio if needed.
Future<void> _updateAspectRatioIfNeeded(ImageInfo imageInfo) async {
if (_imageProvider != null &&
widget.photo.isUploaded &&
widget.photo.ownerID == _currentUserID) {
final int h = imageInfo.image.height, w = imageInfo.image.width;
if (h != 0 &&
w != 0 &&
(h != widget.photo.height || w != widget.photo.width)) {
_logger.info('Updating aspect ratio for ${widget.photo} to $h:$w');
await FileMagicService.instance.updatePublicMagicMetadata([
widget.photo,
], {
heightKey: h,
widthKey: w,
});
Future<void> _updateAspectRatioIfNeeded(
EnteFile enteFile,
ImageInfo imageInfo,
) async {
final int h = imageInfo.image.height, w = imageInfo.image.width;
if (h != enteFile.height || w != enteFile.width) {
if (kDebugMode) {
showToast(context, 'Updating aspect ratio');
}
_logger.info('Updating aspect ratio for $enteFile to $h:$w');
await FileMagicService.instance.updatePublicMagicMetadata([
enteFile,
], {
heightKey: h,
widthKey: w,
});
}
}