filter bar: clear filter, app filter color

lib/main.dart

@@ -5,8 +5,8 @@ import 'package:aves/model/settings.dart';
 import 'package:aves/utils/android_file_utils.dart';
 import 'package:aves/utils/viewer_service.dart';
 import 'package:aves/widgets/album/collection_page.dart';
-import 'package:aves/widgets/common/providers/media_query_data_provider.dart';
-import 'package:aves/widgets/common/providers/media_store_collection_provider.dart';
+import 'package:aves/widgets/common/data_providers/media_query_data_provider.dart';
+import 'package:aves/widgets/common/data_providers/media_store_collection_provider.dart';
 import 'package:aves/widgets/fullscreen/fullscreen_page.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';

lib/model/collection_filters.dart

@@ -1,10 +1,16 @@
 import 'package:aves/model/image_entry.dart';
+import 'package:aves/utils/android_file_utils.dart';
+import 'package:aves/utils/color_utils.dart';
 import 'package:aves/widgets/common/icons.dart';
+import 'package:aves/widgets/common/image_providers/app_icon_image_provider.dart';
+import 'package:collection/collection.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 import 'package:outline_material_icons/outline_material_icons.dart';
+import 'package:palette_generator/palette_generator.dart';
 import 'package:path/path.dart';
 
-abstract class CollectionFilter {
+abstract class CollectionFilter implements Comparable<CollectionFilter> {
   static const List<String> collectionFilterOrder = [
     VideoFilter.type,
     GifFilter.type,
@@ -20,11 +26,19 @@ abstract class CollectionFilter {
 
   String get label;
 
-  Widget iconBuilder(BuildContext context);
+  Widget iconBuilder(BuildContext context, double size);
+
+  Future<Color> color(BuildContext context) => SynchronousFuture(stringToColor(label));
 
   String get typeKey;
 
   int get displayPriority => collectionFilterOrder.indexOf(typeKey);
+
+  @override
+  int compareTo(CollectionFilter other) {
+    final c = displayPriority.compareTo(other.displayPriority);
+    return c != 0 ? c : compareAsciiUpperCase(label, other.label);
+  }
 }
 
 class AlbumFilter extends CollectionFilter {
@@ -41,7 +55,23 @@ class AlbumFilter extends CollectionFilter {
   String get label => album.split(separator).last;
 
   @override
-  Widget iconBuilder(context) => IconUtils.getAlbumIcon(context, album) ?? Icon(OMIcons.photoAlbum);
+  Widget iconBuilder(context, size) {
+    return IconUtils.getAlbumIcon(context: context, album: album, size: size) ?? Icon(OMIcons.photoAlbum, size: size);
+  }
+
+  Future<Color> color(BuildContext context) async {
+    Color color;
+    if (androidFileUtils.getAlbumType(album) == AlbumType.App) {
+      final palette = await PaletteGenerator.fromImageProvider(
+        AppIconImage(
+          packageName: androidFileUtils.getAlbumAppPackageName(album),
+          size: 24,
+        ),
+      );
+      color = palette.dominantColor?.color;
+    }
+    return color ?? super.color(context);
+  }
 
   @override
   String get typeKey => type;
@@ -70,7 +100,7 @@ class TagFilter extends CollectionFilter {
   String get label => tag;
 
   @override
-  Widget iconBuilder(context) => Icon(OMIcons.localOffer);
+  Widget iconBuilder(context, size) => Icon(OMIcons.localOffer, size: size);
 
   @override
   String get typeKey => type;
@@ -99,7 +129,7 @@ class CountryFilter extends CollectionFilter {
   String get label => country;
 
   @override
-  Widget iconBuilder(context) => Icon(OMIcons.place);
+  Widget iconBuilder(context, size) => Icon(OMIcons.place, size: size);
 
   @override
   String get typeKey => type;
@@ -124,7 +154,7 @@ class VideoFilter extends CollectionFilter {
   String get label => 'Video';
 
   @override
-  Widget iconBuilder(context) => Icon(OMIcons.movie);
+  Widget iconBuilder(context, size) => Icon(OMIcons.movie, size: size);
 
   @override
   String get typeKey => type;
@@ -149,7 +179,7 @@ class GifFilter extends CollectionFilter {
   String get label => 'GIF';
 
   @override
-  Widget iconBuilder(context) => Icon(OMIcons.gif);
+  Widget iconBuilder(context, size) => Icon(OMIcons.gif, size: size);
 
   @override
   String get typeKey => type;
@@ -178,7 +208,7 @@ class QueryFilter extends CollectionFilter {
   String get label => '${query}';
 
   @override
-  Widget iconBuilder(context) => Icon(OMIcons.formatQuote);
+  Widget iconBuilder(context, size) => Icon(OMIcons.formatQuote, size: size);
 
   @override
   String get typeKey => type;

lib/model/collection_lens.dart

@@ -52,7 +52,7 @@ class CollectionLens with ChangeNotifier {
       source: source,
       filters: [
         ...filters,
-        if (filter != null) filter,
+        filter,
       ],
       groupFactor: groupFactor,
       sortFactor: sortFactor,
@@ -71,6 +71,14 @@ class CollectionLens with ChangeNotifier {
 
   Object heroTag(ImageEntry entry) => '$hashCode${entry.uri}';
 
+  void removeFilter(CollectionFilter filter) {
+    if (!filters.contains(filter)) return;
+    filters.remove(filter);
+    _applyFilters();
+    _applySort();
+    _applyGroup();
+  }
+
   void sort(SortFactor sortFactor) {
     this.sortFactor = sortFactor;
     _applySort();

lib/widgets/album/collection_drawer.dart

@@ -82,7 +82,7 @@ class _CollectionDrawerState extends State<CollectionDrawer> {
     );
     final buildAlbumEntry = (album) => _FilteredCollectionNavTile(
           source: source,
-          leading: IconUtils.getAlbumIcon(context, album),
+          leading: IconUtils.getAlbumIcon(context: context, album: album),
           title: CollectionSource.getUniqueAlbumName(album, source.sortedAlbums),
           dense: true,
           filter: AlbumFilter(album),

lib/widgets/album/collection_page.dart

@@ -3,8 +3,8 @@ import 'package:aves/widgets/album/all_collection_app_bar.dart';
 import 'package:aves/widgets/album/collection_drawer.dart';
 import 'package:aves/widgets/album/filter_bar.dart';
 import 'package:aves/widgets/album/thumbnail_collection.dart';
+import 'package:aves/widgets/common/data_providers/media_query_data_provider.dart';
 import 'package:aves/widgets/common/menu_row.dart';
-import 'package:aves/widgets/common/providers/media_query_data_provider.dart';
 import 'package:aves/widgets/stats.dart';
 import 'package:flutter/material.dart';
 import 'package:outline_material_icons/outline_material_icons.dart';
@@ -27,7 +27,7 @@ class CollectionPage extends StatelessWidget {
                 : SliverAppBar(
                     title: const Text('Aves'),
                     actions: _buildActions(),
-                    bottom: FilterBar(collection.filters),
+                    bottom: FilterBar(),
                     floating: true,
                   ),
           ),

lib/widgets/album/collection_scaling.dart

@@ -4,7 +4,7 @@ import 'dart:ui' as ui;
 import 'package:aves/model/image_entry.dart';
 import 'package:aves/widgets/album/collection_section.dart';
 import 'package:aves/widgets/album/thumbnail.dart';
-import 'package:aves/widgets/common/providers/media_query_data_provider.dart';
+import 'package:aves/widgets/common/data_providers/media_query_data_provider.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter_sticky_header/flutter_sticky_header.dart';

lib/widgets/album/collection_section.dart

@@ -162,7 +162,7 @@ class SectionHeader extends StatelessWidget {
   }
 
   Widget _buildAlbumSectionHeader(BuildContext context) {
-    Widget albumIcon = IconUtils.getAlbumIcon(context, sectionKey as String);
+    Widget albumIcon = IconUtils.getAlbumIcon(context: context, album: sectionKey as String);
     if (albumIcon != null) {
       albumIcon = Material(
         type: MaterialType.circle,

lib/widgets/album/filter_bar.dart

@@ -1,27 +1,20 @@
-import 'package:aves/model/collection_filters.dart';
+import 'package:aves/model/collection_lens.dart';
 import 'package:aves/widgets/common/aves_filter_chip.dart';
-import 'package:collection/collection.dart';
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
 
 class FilterBar extends StatelessWidget implements PreferredSizeWidget {
-  final List<CollectionFilter> filters;
-
-  final ScrollController _scrollController = ScrollController();
-
-  static const EdgeInsets padding = EdgeInsets.only(left: 8, right: 8, bottom: 8);
+  static const EdgeInsets padding = EdgeInsets.symmetric(horizontal: 8);
 
   @override
   final Size preferredSize = Size.fromHeight(kMinInteractiveDimension + padding.vertical);
 
-  FilterBar(Set<CollectionFilter> filters)
-      : this.filters = filters.toList()
-          ..sort((a, b) {
-            final c = a.displayPriority.compareTo(b.displayPriority);
-            return c != 0 ? c : compareAsciiUpperCase(a.label, b.label);
-          });
-
   @override
   Widget build(BuildContext context) {
+    debugPrint('$runtimeType build');
+    final collection = Provider.of<CollectionLens>(context);
+    final filters = collection.filters.toList()..sort();
+
     return Container(
       // specify transparent as a workaround to prevent
       // chip border clipping when the floating app bar is fading
@@ -34,16 +27,18 @@ class FilterBar extends StatelessWidget implements PreferredSizeWidget {
         onNotification: (notification) => true,
         child: ListView.separated(
           scrollDirection: Axis.horizontal,
-          controller: _scrollController,
           primary: false,
           physics: const BouncingScrollPhysics(),
           padding: const EdgeInsets.all(AvesFilterChip.buttonBorderWidth / 2),
           itemBuilder: (context, index) {
             if (index >= filters.length) return null;
             final filter = filters[index];
-            return AvesFilterChip(
-              filter,
-              onPressed: (filter) {},
+            return Center(
+              child: AvesFilterChip(
+                filter,
+                clearable: true,
+                onPressed: collection.removeFilter,
+              ),
             );
           },
           separatorBuilder: (context, index) => const SizedBox(width: 8),

lib/widgets/album/search_delegate.dart

@@ -2,7 +2,7 @@ import 'package:aves/model/collection_filters.dart';
 import 'package:aves/model/collection_lens.dart';
 import 'package:aves/model/image_entry.dart';
 import 'package:aves/widgets/album/thumbnail_collection.dart';
-import 'package:aves/widgets/common/providers/media_query_data_provider.dart';
+import 'package:aves/widgets/common/data_providers/media_query_data_provider.dart';
 import 'package:flutter/material.dart';
 import 'package:outline_material_icons/outline_material_icons.dart';
 import 'package:provider/provider.dart';

lib/widgets/album/thumbnail.dart

@@ -4,7 +4,7 @@ import 'package:aves/model/image_entry.dart';
 import 'package:aves/utils/constants.dart';
 import 'package:aves/widgets/common/icons.dart';
 import 'package:aves/widgets/common/image_preview.dart';
-import 'package:aves/widgets/fullscreen/uri_picture_provider.dart';
+import 'package:aves/widgets/common/image_providers/uri_picture_provider.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 

lib/widgets/common/app_icon.dart

@@ -1,49 +0,0 @@
-import 'dart:typed_data';
-
-import 'package:aves/utils/android_app_service.dart';
-import 'package:flutter/material.dart';
-import 'package:transparent_image/transparent_image.dart';
-
-class AppIcon extends StatefulWidget {
-  final String packageName;
-  final double size;
-  final double devicePixelRatio;
-
-  const AppIcon({
-    Key key,
-    @required this.packageName,
-    @required this.size,
-    @required this.devicePixelRatio,
-  }) : super(key: key);
-
-  @override
-  State<StatefulWidget> createState() => AppIconState();
-}
-
-class AppIconState extends State<AppIcon> {
-  Future<Uint8List> _byteLoader;
-
-  @override
-  void initState() {
-    super.initState();
-    final dim = (widget.size * widget.devicePixelRatio).round();
-    _byteLoader = AndroidAppService.getAppIcon(widget.packageName, dim);
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return FutureBuilder(
-      future: _byteLoader,
-      builder: (futureContext, AsyncSnapshot<Uint8List> snapshot) {
-        final bytes = (snapshot.connectionState == ConnectionState.done && !snapshot.hasError) ? snapshot.data : kTransparentImage;
-        return bytes.isNotEmpty
-            ? Image.memory(
-                bytes,
-                width: widget.size,
-                height: widget.size,
-              )
-            : const SizedBox.shrink();
-      },
-    );
-  }
-}

lib/widgets/common/aves_filter_chip.dart

@@ -1,56 +1,101 @@
 import 'package:aves/model/collection_filters.dart';
-import 'package:aves/utils/color_utils.dart';
 import 'package:flutter/material.dart';
+import 'package:outline_material_icons/outline_material_icons.dart';
 
 typedef FilterCallback = void Function(CollectionFilter filter);
 
-class AvesFilterChip extends StatelessWidget {
+class AvesFilterChip extends StatefulWidget {
   final CollectionFilter filter;
+  final bool clearable;
   final FilterCallback onPressed;
 
-  String get label => filter.label;
-
   static const double buttonBorderWidth = 2;
   static const double maxChipWidth = 160;
+  static const double iconSize = 20;
+  static const double padding = 6;
 
   const AvesFilterChip(
     this.filter, {
+    this.clearable = false,
     @required this.onPressed,
   });
 
+  @override
+  _AvesFilterChipState createState() => _AvesFilterChipState();
+}
+
+class _AvesFilterChipState extends State<AvesFilterChip> {
+  Future<Color> _colorFuture;
+
+  CollectionFilter get filter => widget.filter;
+
+  String get label => filter.label;
+
+  @override
+  void initState() {
+    super.initState();
+    _initColorLoader();
+  }
+
+  @override
+  void didUpdateWidget(AvesFilterChip oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (oldWidget.filter != filter) {
+      _initColorLoader();
+    }
+  }
+
+  void _initColorLoader() => _colorFuture = filter.color(context);
+
   @override
   Widget build(BuildContext context) {
-    final icon = filter.iconBuilder(context);
+    final leading = filter.iconBuilder(context, AvesFilterChip.iconSize);
+    final trailing = widget.clearable ? Icon(OMIcons.clear, size: AvesFilterChip.iconSize) : null;
+
+    final child = Row(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        if (leading != null) ...[
+          leading,
+          const SizedBox(width: AvesFilterChip.padding * 1.6),
+        ],
+        Flexible(
+          child: Text(
+            label,
+            softWrap: false,
+            overflow: TextOverflow.fade,
+            maxLines: 1,
+          ),
+        ),
+        if (trailing != null) ...[
+          const SizedBox(width: AvesFilterChip.padding),
+          trailing,
+        ],
+      ],
+    );
+
+    final shape = RoundedRectangleBorder(
+      borderRadius: BorderRadius.circular(42),
+    );
+
     return ConstrainedBox(
-      constraints: const BoxConstraints(maxWidth: maxChipWidth),
+      constraints: const BoxConstraints(maxWidth: AvesFilterChip.maxChipWidth),
       child: Tooltip(
         message: label,
-        child: OutlineButton(
-          onPressed: onPressed != null ? () => onPressed(filter) : null,
-          borderSide: BorderSide(
-            color: stringToColor(label),
-            width: buttonBorderWidth,
-          ),
-          shape: RoundedRectangleBorder(
-            borderRadius: BorderRadius.circular(42),
-          ),
-          child: Row(
-            mainAxisSize: MainAxisSize.min,
-            children: [
-              if (icon != null) ...[
-                icon,
-                const SizedBox(width: 8),
-              ],
-              Flexible(
-                child: Text(
-                  label,
-                  softWrap: false,
-                  overflow: TextOverflow.fade,
-                  maxLines: 1,
-                ),
+        child: FutureBuilder(
+          future: _colorFuture,
+          builder: (context, AsyncSnapshot<Color> snapshot) {
+            return OutlineButton(
+              onPressed: widget.onPressed != null ? () => widget.onPressed(filter) : null,
+              borderSide: BorderSide(
+                color: snapshot.hasData ? snapshot.data : Colors.transparent,
+                width: AvesFilterChip.buttonBorderWidth,
               ),
-            ],
-          ),
+              padding: const EdgeInsets.symmetric(horizontal: AvesFilterChip.padding * 2),
+              shape: shape,
+              child: child,
+            );
+          },
         ),
       ),
     );

lib/widgets/common/icons.dart

@@ -2,10 +2,9 @@ import 'dart:ui';
 
 import 'package:aves/model/image_entry.dart';
 import 'package:aves/utils/android_file_utils.dart';
-import 'package:aves/widgets/common/app_icon.dart';
+import 'package:aves/widgets/common/image_providers/app_icon_image_provider.dart';
 import 'package:flutter/material.dart';
 import 'package:outline_material_icons/outline_material_icons.dart';
-import 'package:provider/provider.dart';
 
 class VideoIcon extends StatelessWidget {
   final ImageEntry entry;
@@ -88,23 +87,27 @@ class OverlayIcon extends StatelessWidget {
 }
 
 class IconUtils {
-  static Widget getAlbumIcon(BuildContext context, String albumDirectory) {
-    switch (androidFileUtils.getAlbumType(albumDirectory)) {
+  static Widget getAlbumIcon({
+    @required BuildContext context,
+    @required String album,
+    double size = 24,
+  }) {
+    switch (androidFileUtils.getAlbumType(album)) {
       case AlbumType.Camera:
-        return Icon(OMIcons.photoCamera);
+        return Icon(OMIcons.photoCamera, size: size);
       case AlbumType.Screenshots:
       case AlbumType.ScreenRecordings:
-        return Icon(OMIcons.smartphone);
+        return Icon(OMIcons.smartphone, size: size);
       case AlbumType.Download:
-        return Icon(Icons.file_download);
+        return Icon(Icons.file_download, size: size);
       case AlbumType.App:
-        return Selector<MediaQueryData, double>(
-          selector: (c, mq) => mq.devicePixelRatio,
-          builder: (c, devicePixelRatio, child) => AppIcon(
-            packageName: androidFileUtils.getAlbumAppPackageName(albumDirectory),
-            size: IconTheme.of(context).size,
-            devicePixelRatio: devicePixelRatio,
+        return Image(
+          image: AppIconImage(
+            packageName: androidFileUtils.getAlbumAppPackageName(album),
+            size: size,
           ),
+          width: size,
+          height: size,
         );
       case AlbumType.Default:
       default:

lib/widgets/common/image_providers/app_icon_image_provider.dart

@@ -0,0 +1,69 @@
+import 'dart:typed_data';
+import 'dart:ui' as ui show Codec;
+
+import 'package:aves/utils/android_app_service.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+
+class AppIconImage extends ImageProvider<AppIconImageKey> {
+  const AppIconImage({
+    @required this.packageName,
+    @required this.size,
+    this.scale = 1.0,
+  })  : assert(packageName != null),
+        assert(scale != null);
+
+  final String packageName;
+  final double size;
+  final double scale;
+
+  @override
+  Future<AppIconImageKey> obtainKey(ImageConfiguration configuration) {
+    return SynchronousFuture<AppIconImageKey>(AppIconImageKey(
+      packageName: packageName,
+      sizePixels: (size * configuration.devicePixelRatio).round(),
+      scale: scale,
+    ));
+  }
+
+  @override
+  ImageStreamCompleter load(AppIconImageKey key, DecoderCallback decode) {
+    return MultiFrameImageStreamCompleter(
+      codec: _loadAsync(key, decode),
+      scale: key.scale,
+      informationCollector: () sync* {
+        yield ErrorDescription('uri=$packageName, size=$size');
+      },
+    );
+  }
+
+  Future<ui.Codec> _loadAsync(AppIconImageKey key, DecoderCallback decode) async {
+    final Uint8List bytes = await AndroidAppService.getAppIcon(key.packageName, key.sizePixels);
+    if (bytes.lengthInBytes == 0) {
+      return null;
+    }
+
+    return await decode(bytes);
+  }
+}
+
+class AppIconImageKey {
+  final String packageName;
+  final int sizePixels;
+  final double scale;
+
+  const AppIconImageKey({
+    @required this.packageName,
+    @required this.sizePixels,
+    this.scale,
+  });
+
+  @override
+  bool operator ==(Object other) {
+    if (other.runtimeType != runtimeType) return false;
+    return other is AppIconImageKey && other.packageName == packageName && other.sizePixels == sizePixels && other.scale == scale;
+  }
+
+  @override
+  int get hashCode => hashValues(packageName, sizePixels, scale);
+}

lib/widgets/common/image_providers/uri_image_provider.dart

@@ -47,7 +47,7 @@ class UriImage extends ImageProvider<UriImage> {
   @override
   bool operator ==(Object other) {
     if (other.runtimeType != runtimeType) return false;
-    return other is UriImage && other.uri == uri && other.scale == scale;
+    return other is UriImage && other.uri == uri && other.mimeType == mimeType && other.scale == scale;
   }
 
   @override

lib/widgets/debug_page.dart

@@ -4,9 +4,10 @@ import 'package:aves/model/image_metadata.dart';
 import 'package:aves/model/metadata_db.dart';
 import 'package:aves/model/settings.dart';
 import 'package:aves/utils/file_utils.dart';
-import 'package:aves/widgets/common/providers/media_query_data_provider.dart';
+import 'package:aves/widgets/common/data_providers/media_query_data_provider.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/scheduler.dart';
+import 'package:flutter_svg/flutter_svg.dart';
 
 class DebugPage extends StatefulWidget {
   final CollectionSource source;
@@ -86,6 +87,9 @@ class DebugPageState extends State<DebugPage> {
                 },
               ),
               const Divider(),
+              Text('Image cache: ${imageCache.currentSize} items, ${formatFilesize(imageCache.currentSizeBytes)}'),
+              Text('SVG cache: ${PictureProvider.cacheCount} items'),
+              const Divider(),
               const Text('Time dilation'),
               Slider(
                 value: timeDilation,

lib/widgets/fullscreen/fullscreen_action_delegate.dart

@@ -3,6 +3,7 @@ import 'dart:io';
 import 'package:aves/model/collection_lens.dart';
 import 'package:aves/model/image_entry.dart';
 import 'package:aves/utils/android_app_service.dart';
+import 'package:aves/widgets/common/image_providers/uri_image_provider.dart';
 import 'package:flushbar/flushbar.dart';
 import 'package:flutter/material.dart';
 import 'package:pdf/widgets.dart' as pdf;
@@ -77,7 +78,7 @@ class FullscreenActionDelegate {
     final doc = pdf.Document(title: entry.title);
     final image = await pdfImageFromImageProvider(
       pdf: doc.document,
-      image: FileImage(File(entry.path)),
+      image: UriImage(uri: entry.uri, mimeType: entry.mimeType),
     );
     doc.addPage(pdf.Page(build: (context) => pdf.Center(child: pdf.Image(image)))); // Page
     unawaited(Printing.layoutPdf(

lib/widgets/fullscreen/fullscreen_body.dart

@@ -3,13 +3,14 @@ import 'dart:math';
 
 import 'package:aves/model/collection_lens.dart';
 import 'package:aves/model/image_entry.dart';
+import 'package:aves/widgets/common/image_providers/uri_image_provider.dart';
 import 'package:aves/widgets/fullscreen/fullscreen_action_delegate.dart';
 import 'package:aves/widgets/fullscreen/image_page.dart';
 import 'package:aves/widgets/fullscreen/info/info_page.dart';
 import 'package:aves/widgets/fullscreen/overlay/bottom.dart';
 import 'package:aves/widgets/fullscreen/overlay/top.dart';
 import 'package:aves/widgets/fullscreen/overlay/video.dart';
-import 'package:aves/widgets/fullscreen/uri_image_provider.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/scheduler.dart';
 import 'package:flutter/services.dart';
@@ -126,14 +127,14 @@ class FullscreenBodyState extends State<FullscreenBody> with SingleTickerProvide
         if (_currentVerticalPage.value == infoPage) {
           // back from info to image
           _goToVerticalPage(imagePage);
-          return Future.value(false);
+          return SynchronousFuture(false);
         }
         if (!ModalRoute.of(context).canPop) {
           // exit app when trying to pop a fullscreen page that is a viewer for a single entry
           exit(0);
         }
         _onLeave();
-        return Future.value(true);
+        return SynchronousFuture(true);
       },
       child: Stack(
         children: [

lib/widgets/fullscreen/fullscreen_page.dart

@@ -1,6 +1,6 @@
 import 'package:aves/model/collection_lens.dart';
 import 'package:aves/model/image_entry.dart';
-import 'package:aves/widgets/common/providers/media_query_data_provider.dart';
+import 'package:aves/widgets/common/data_providers/media_query_data_provider.dart';
 import 'package:aves/widgets/fullscreen/fullscreen_body.dart';
 import 'package:flutter/material.dart';
 

lib/widgets/fullscreen/image_view.dart

@@ -1,7 +1,7 @@
 import 'package:aves/model/image_entry.dart';
 import 'package:aves/utils/constants.dart';
-import 'package:aves/widgets/fullscreen/uri_image_provider.dart';
-import 'package:aves/widgets/fullscreen/uri_picture_provider.dart';
+import 'package:aves/widgets/common/image_providers/uri_image_provider.dart';
+import 'package:aves/widgets/common/image_providers/uri_picture_provider.dart';
 import 'package:aves/widgets/fullscreen/video.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_svg/flutter_svg.dart';

lib/widgets/fullscreen/info/info_page.dart

@@ -3,7 +3,7 @@ import 'package:aves/model/collection_lens.dart';
 import 'package:aves/model/image_entry.dart';
 import 'package:aves/widgets/album/collection_page.dart';
 import 'package:aves/widgets/common/aves_filter_chip.dart';
-import 'package:aves/widgets/common/providers/media_query_data_provider.dart';
+import 'package:aves/widgets/common/data_providers/media_query_data_provider.dart';
 import 'package:aves/widgets/fullscreen/info/basic_section.dart';
 import 'package:aves/widgets/fullscreen/info/location_section.dart';
 import 'package:aves/widgets/fullscreen/info/metadata_section.dart';
@@ -155,11 +155,12 @@ class InfoPageState extends State<InfoPage> {
 
   void _goToFilteredCollection(CollectionFilter filter) {
     if (collection == null) return;
-    Navigator.push(
+    Navigator.pushAndRemoveUntil(
       context,
       MaterialPageRoute(
         builder: (context) => CollectionPage(collection.derive(filter)),
       ),
+      (route) => false,
     );
   }
 }

lib/widgets/stats.dart

@@ -1,7 +1,7 @@
 import 'package:aves/model/collection_lens.dart';
 import 'package:aves/model/image_entry.dart';
 import 'package:aves/utils/color_utils.dart';
-import 'package:aves/widgets/common/providers/media_query_data_provider.dart';
+import 'package:aves/widgets/common/data_providers/media_query_data_provider.dart';
 import 'package:charts_flutter/flutter.dart' as charts;
 import 'package:collection/collection.dart';
 import 'package:flutter/material.dart';

pubspec.lock

@@ -232,6 +232,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.1"
+  palette_generator:
+    dependency: "direct main"
+    description:
+      name: palette_generator
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.2"
   path:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -40,6 +40,7 @@ dependencies:
   outline_material_icons:
   path:
   pdf:
+  palette_generator:
   pedantic:
   percent_indicator:
   permission_handler: