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mobile: use grey placeholders on thumb scroll

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This commit is contained in:
shalong-tanwen 2023-10-24 20:56:51 +05:30
parent f14880ba53
commit 785fc2af90
1 changed files with 62 additions and 61 deletions
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123
mobile/lib/modules/home/ui/asset_grid/immich_asset_grid_view.dart
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@ -4,7 +4,6 @@ import 'dart:math';
import 'package:collection/collection.dart';
import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/material.dart';
import 'package:flutter_thumbhash/flutter_thumbhash.dart';
import 'package:immich_mobile/modules/asset_viewer/providers/scroll_notifier.provider.dart';
import 'package:immich_mobile/modules/home/ui/asset_grid/thumbnail_image.dart';
import 'package:immich_mobile/shared/models/asset.dart';
@ -121,57 +120,35 @@ class ImmichAssetGridViewState extends State<ImmichAssetGridView> {
assets.firstWhereOrNull((e) => !_selectedAssets.contains(e)) == null;
}
Widget _getPlaceholder(Asset asset) {
if (asset.thumbhash != null) {
return FittedBox(
fit: BoxFit.fill,
child: Image(
image: ThumbHash.fromIntList(asset.thumbhash!).toImage(),
),
);
}
return Container(
color: Colors.grey,
Widget _buildThumbnailOrPlaceholder(Asset asset, int index) {
return RepaintBoundary(
child: ThumbnailImage(
asset: asset,
index: index,
loadAsset: widget.renderList.loadAsset,
totalAssets: widget.renderList.totalAssets,
multiselectEnabled: widget.selectionActive,
isSelected: widget.selectionActive && _selectedAssets.contains(asset),
onSelect: () => _selectAssets([asset]),
onDeselect: widget.canDeselect ||
widget.preselectedAssets == null ||
!widget.preselectedAssets!.contains(asset)
? () => _deselectAssets([asset])
: null,
useGrayBoxPlaceholder: true,
showStorageIndicator: widget.showStorageIndicator,
heroOffset: widget.heroOffset,
showStack: widget.showStack,
),
);
}
Widget _buildThumbnailOrPlaceholder(
Asset asset,
int index,
bool isScrolling,
) {
return isScrolling
? _getPlaceholder(asset)
: RepaintBoundary(
child: ThumbnailImage(
asset: asset,
index: index,
loadAsset: widget.renderList.loadAsset,
totalAssets: widget.renderList.totalAssets,
multiselectEnabled: widget.selectionActive,
isSelected:
widget.selectionActive && _selectedAssets.contains(asset),
onSelect: () => _selectAssets([asset]),
onDeselect: widget.canDeselect ||
widget.preselectedAssets == null ||
!widget.preselectedAssets!.contains(asset)
? () => _deselectAssets([asset])
: null,
useGrayBoxPlaceholder: true,
showStorageIndicator: widget.showStorageIndicator,
heroOffset: widget.heroOffset,
showStack: widget.showStack,
),
);
}
Widget _buildAssetRow(
Key key,
BuildContext context,
List<Asset> assets,
int absoluteOffset,
double width,
bool isScrolling,
) {
// Default: All assets have the same width
final widthDistribution = List.filled(assets.length, 1.0);
@ -210,11 +187,7 @@ class ImmichAssetGridViewState extends State<ImmichAssetGridView> {
bottom: widget.margin,
right: last ? 0.0 : widget.margin,
),
child: _buildThumbnailOrPlaceholder(
asset,
absoluteOffset + index,
isScrolling,
),
child: _buildThumbnailOrPlaceholder(asset, absoluteOffset + index),
);
}).toList(),
);
@ -253,6 +226,25 @@ class ImmichAssetGridViewState extends State<ImmichAssetGridView> {
);
}
Widget _buildPlaceHolderRow(Key key, int num, double width, double height) {
return Row(
key: key,
children: [
for (int i = 0; i < num; i++)
Container(
key: ValueKey(i),
width: width,
height: height,
margin: EdgeInsets.only(
bottom: widget.margin,
right: i + 1 == num ? 0.0 : widget.margin,
),
color: Colors.grey,
),
],
);
}
Widget _buildSection(
BuildContext context,
RenderAssetGridElement section,
@ -264,8 +256,9 @@ class ImmichAssetGridViewState extends State<ImmichAssetGridView> {
widget.margin * (widget.assetsPerRow - 1) / widget.assetsPerRow;
final rows =
(section.count + widget.assetsPerRow - 1) ~/ widget.assetsPerRow;
final List<Asset> assetsToRender =
widget.renderList.loadAssets(section.offset, section.count);
final List<Asset> assetsToRender = scrolling
? []
: widget.renderList.loadAssets(section.offset, section.count);
return Column(
key: ValueKey(section.offset),
crossAxisAlignment: CrossAxisAlignment.start,
@ -283,17 +276,25 @@ class ImmichAssetGridViewState extends State<ImmichAssetGridView> {
.loadAssets(section.offset, section.totalCount),
),
for (int i = 0; i < rows; i++)
_buildAssetRow(
ValueKey(i),
context,
assetsToRender.nestedSlice(
i * widget.assetsPerRow,
min((i + 1) * widget.assetsPerRow, section.count),
),
section.offset + i * widget.assetsPerRow,
width,
scrolling,
),
scrolling
? _buildPlaceHolderRow(
ValueKey(i),
i + 1 == rows
? section.count - i * widget.assetsPerRow
: widget.assetsPerRow,
width,
width,
)
: _buildAssetRow(
ValueKey(i),
context,
assetsToRender.nestedSlice(
i * widget.assetsPerRow,
min((i + 1) * widget.assetsPerRow, section.count),
),
section.offset + i * widget.assetsPerRow,
width,
),
],
);
},