memory leak tracking & fixes

lib/widgets/collection/app_bar.dart

@@ -123,7 +123,6 @@ class _CollectionAppBarState extends State<CollectionAppBar> with SingleTickerPr
     _unregisterWidget(widget);
     _queryBarFocusNode.dispose();
     _queryFocusRequestNotifier.removeListener(_onQueryFocusRequest);
-    _isSelectingNotifier.removeListener(_onActivityChanged);
     _isSelectingNotifier.dispose();
     _browseToSelectAnimation.dispose();
     _subscriptions

lib/widgets/collection/collection_grid.dart

@@ -302,7 +302,7 @@ class _CollectionSectionedContentState extends State<_CollectionSectionedContent
 
   @override
   void dispose() {
-    _appBarHeightNotifier.removeListener(_onAppBarHeightChanged);
+    _appBarHeightNotifier.dispose();
     super.dispose();
   }
 

lib/widgets/common/action_controls/togglers/favourite.dart

@@ -29,7 +29,7 @@ class FavouriteToggler extends StatefulWidget {
 }
 
 class _FavouriteTogglerState extends State<FavouriteToggler> {
-  final ValueNotifier<bool> isFavouriteNotifier = ValueNotifier(false);
+  final ValueNotifier<bool> _isFavouriteNotifier = ValueNotifier(false);
 
   Set<AvesEntry> get entries => widget.entries;
 
@@ -53,14 +53,14 @@ class _FavouriteTogglerState extends State<FavouriteToggler> {
   @override
   void dispose() {
     favourites.removeListener(_onChanged);
-    isFavouriteNotifier.dispose();
+    _isFavouriteNotifier.dispose();
     super.dispose();
   }
 
   @override
   Widget build(BuildContext context) {
     return ValueListenableBuilder<bool>(
-      valueListenable: isFavouriteNotifier,
+      valueListenable: _isFavouriteNotifier,
       builder: (context, isFavourite, child) {
         if (widget.isMenuItem) {
           return isFavourite
@@ -88,7 +88,7 @@ class _FavouriteTogglerState extends State<FavouriteToggler> {
                 favouriteSweeperIcon,
                 color: context.select<AvesColorsData, Color>((v) => v.favourite),
               ),
-              toggledNotifier: isFavouriteNotifier,
+              toggledNotifier: _isFavouriteNotifier,
             ),
           ],
         );
@@ -97,7 +97,7 @@ class _FavouriteTogglerState extends State<FavouriteToggler> {
   }
 
   void _onChanged() {
-    isFavouriteNotifier.value = entries.isNotEmpty && entries.every((entry) => entry.isFavourite);
+    _isFavouriteNotifier.value = entries.isNotEmpty && entries.every((entry) => entry.isFavourite);
   }
 }
 
@@ -116,7 +116,7 @@ class FavouriteTogglerCaption extends StatefulWidget {
 }
 
 class _FavouriteTogglerCaptionState extends State<FavouriteTogglerCaption> {
-  final ValueNotifier<bool> isFavouriteNotifier = ValueNotifier(false);
+  final ValueNotifier<bool> _isFavouriteNotifier = ValueNotifier(false);
 
   Set<AvesEntry> get entries => widget.entries;
 
@@ -136,14 +136,14 @@ class _FavouriteTogglerCaptionState extends State<FavouriteTogglerCaption> {
   @override
   void dispose() {
     favourites.removeListener(_onChanged);
-    isFavouriteNotifier.dispose();
+    _isFavouriteNotifier.dispose();
     super.dispose();
   }
 
   @override
   Widget build(BuildContext context) {
     return ValueListenableBuilder<bool>(
-      valueListenable: isFavouriteNotifier,
+      valueListenable: _isFavouriteNotifier,
       builder: (context, isFavourite, child) {
         return CaptionedButtonText(
           text: isFavourite ? context.l10n.entryActionRemoveFavourite : context.l10n.entryActionAddFavourite,
@@ -154,6 +154,6 @@ class _FavouriteTogglerCaptionState extends State<FavouriteTogglerCaption> {
   }
 
   void _onChanged() {
-    isFavouriteNotifier.value = entries.isNotEmpty && entries.every((entry) => entry.isFavourite);
+    _isFavouriteNotifier.value = entries.isNotEmpty && entries.every((entry) => entry.isFavourite);
   }
 }

lib/widgets/common/action_mixins/entry_storage.dart

@@ -391,12 +391,15 @@ mixin EntryStorageMixin on FeedbackMixin, PermissionAwareMixin, SizeAwareMixin {
       return dateMillis == null || dateMillis == 0;
     }).toSet();
     if (undatedItems.isNotEmpty) {
-      if (!await showSkippableConfirmationDialog(
+      final confirmationDialogDelegate = MoveUndatedConfirmationDialogDelegate();
+      final confirmed = await showSkippableConfirmationDialog(
         context: context,
         type: ConfirmationDialog.moveUndatedItems,
-        delegate: MoveUndatedConfirmationDialogDelegate(),
+        delegate: confirmationDialogDelegate,
         confirmationButtonLabel: context.l10n.continueButtonLabel,
-      )) return false;
+      );
+      confirmationDialogDelegate.dispose();
+      if (!confirmed) return false;
 
       if (settings.setMetadataDateBeforeFileOp) {
         final entriesToDate = undatedItems.where((entry) => entry.canEditDate).toSet();
@@ -461,6 +464,10 @@ class MoveUndatedConfirmationDialogDelegate extends ConfirmationDialogDelegate {
     _setMetadataDate.value = settings.setMetadataDateBeforeFileOp;
   }
 
+  void dispose() {
+    _setMetadataDate.dispose();
+  }
+
   @override
   List<Widget> build(BuildContext context) => [
         Padding(

lib/widgets/common/identity/aves_app_bar.dart

@@ -190,6 +190,7 @@ class _AvesFloatingBarState extends State<AvesFloatingBar> with RouteAware {
   @override
   void dispose() {
     AvesApp.pageRouteObserver.unsubscribe(this);
+    _isBlurAllowedNotifier.dispose();
     super.dispose();
   }
 

lib/widgets/common/thumbnail/overlay.dart

@@ -53,6 +53,12 @@ class _ThumbnailHighlightOverlayState extends State<ThumbnailHighlightOverlay> {
 
   static const startAngle = pi * -3 / 4;
 
+  @override
+  void dispose() {
+    _highlightedNotifier.dispose();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     final highlightInfo = context.watch<HighlightInfo>();

lib/widgets/common/thumbnail/scroller.dart

@@ -36,7 +36,7 @@ class ThumbnailScroller extends StatefulWidget {
 }
 
 class _ThumbnailScrollerState extends State<ThumbnailScroller> {
-  final _cancellableNotifier = ValueNotifier(true);
+  final ValueNotifier<bool> _cancellableNotifier = ValueNotifier(true);
   late ScrollController _scrollController;
   bool _isAnimating = false, _isScrolling = false;
 
@@ -71,6 +71,7 @@ class _ThumbnailScrollerState extends State<ThumbnailScroller> {
   @override
   void dispose() {
     _unregisterWidget(widget);
+    _cancellableNotifier.dispose();
     super.dispose();
   }
 

lib/widgets/dialogs/add_shortcut_dialog.dart

@@ -50,6 +50,7 @@ class _AddShortcutDialogState extends State<AddShortcutDialog> {
   @override
   void dispose() {
     _nameController.dispose();
+    _isValidNotifier.dispose();
     super.dispose();
   }
 

lib/widgets/dialogs/aves_confirmation_dialog.dart

@@ -119,7 +119,13 @@ class _SkippableConfirmationDialog extends StatefulWidget {
 }
 
 class _SkippableConfirmationDialogState extends State<_SkippableConfirmationDialog> {
-  final ValueNotifier<bool> _skip = ValueNotifier(false);
+  final ValueNotifier<bool> _skipNotifier = ValueNotifier(false);
+
+  @override
+  void dispose() {
+    _skipNotifier.dispose();
+    super.dispose();
+  }
 
   @override
   Widget build(BuildContext context) {
@@ -127,10 +133,10 @@ class _SkippableConfirmationDialogState extends State<_SkippableConfirmationDial
       scrollableContent: [
         ...widget.delegate.build(context),
         ValueListenableBuilder<bool>(
-          valueListenable: _skip,
+          valueListenable: _skipNotifier,
           builder: (context, flag, child) => SwitchListTile(
             value: flag,
-            onChanged: (v) => _skip.value = v,
+            onChanged: (v) => _skipNotifier.value = v,
             title: Text(context.l10n.doNotAskAgain),
           ),
         ),
@@ -139,7 +145,7 @@ class _SkippableConfirmationDialogState extends State<_SkippableConfirmationDial
         const CancelButton(),
         TextButton(
           onPressed: () {
-            if (_skip.value) {
+            if (_skipNotifier.value) {
               _skipConfirmation(widget.type);
             }
             Navigator.maybeOf(context)?.pop(true);

lib/widgets/dialogs/convert_entry_dialog.dart

@@ -88,6 +88,8 @@ class _ConvertEntryDialogState extends State<ConvertEntryDialog> {
   void dispose() {
     _widthController.dispose();
     _heightController.dispose();
+    _isValidNotifier.dispose();
+    _mimeTypeNotifier.dispose();
     super.dispose();
   }
 

lib/widgets/dialogs/duration_dialog.dart

@@ -28,6 +28,13 @@ class _DurationDialogState extends State<DurationDialog> {
     _seconds = ValueNotifier(seconds % secondsInMinute);
   }
 
+  @override
+  void dispose() {
+    _minutes.dispose();
+    _seconds.dispose();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     return MediaQueryDataProvider(

lib/widgets/dialogs/entry_editors/edit_date_dialog.dart

@@ -60,6 +60,9 @@ class _EditEntryDateDialogState extends State<EditEntryDateDialog> {
   @override
   void dispose() {
     _isValidNotifier.dispose();
+    _shiftHour.dispose();
+    _shiftMinute.dispose();
+    _shiftSign.dispose();
     super.dispose();
   }
 

lib/widgets/dialogs/entry_editors/edit_location_dialog.dart

@@ -82,6 +82,7 @@ class _EditEntryLocationDialogState extends State<EditEntryLocationDialog> {
   void dispose() {
     _latitudeController.dispose();
     _longitudeController.dispose();
+    _isValidNotifier.dispose();
     super.dispose();
   }
 

lib/widgets/dialogs/entry_editors/remove_metadata_dialog.dart

@@ -45,6 +45,12 @@ class _RemoveEntryMetadataDialogState extends State<RemoveEntryMetadataDialog> {
     _validate();
   }
 
+  @override
+  void dispose() {
+    _isValidNotifier.dispose();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     final l10n = context.l10n;

lib/widgets/dialogs/entry_editors/rename_entry_dialog.dart

@@ -37,6 +37,7 @@ class _RenameEntryDialogState extends State<RenameEntryDialog> {
   @override
   void dispose() {
     _nameController.dispose();
+    _isValidNotifier.dispose();
     super.dispose();
   }
 

lib/widgets/dialogs/pick_dialogs/album_pick_page.dart

@@ -89,6 +89,12 @@ class _AlbumPickPageState extends State<_AlbumPickPage> {
     ChipSetAction.createVault,
   ];
 
+  @override
+  void dispose() {
+    _appBarHeightNotifier.dispose();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     return ListenableProvider<ValueNotifier<AppMode>>.value(

lib/widgets/dialogs/pick_dialogs/location_pick_page.dart

@@ -96,8 +96,10 @@ class _ContentState extends State<_Content> with SingleTickerProviderStateMixin
     _subscriptions
       ..forEach((sub) => sub.cancel())
       ..clear();
-    _dotLocationNotifier.removeListener(_updateLocationInfo);
     _mapController.dispose();
+    _isPageAnimatingNotifier.dispose();
+    _dotLocationNotifier.dispose();
+    _infoLocationNotifier.dispose();
     super.dispose();
   }
 

lib/widgets/dialogs/tile_view_dialog.dart

@@ -73,6 +73,12 @@ class _TileViewDialogState<S, G, L> extends State<TileViewDialog<S, G, L>> with
     _columnMax = columnRange.$2;
   }
 
+  @override
+  void dispose() {
+    _columnCountNotifier.dispose();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     final l10n = context.l10n;

lib/widgets/filter_grids/common/app_bar.dart

@@ -111,7 +111,6 @@ class _FilterGridAppBarState<T extends CollectionFilter, CSAD extends ChipSetAct
   void dispose() {
     _queryBarFocusNode.dispose();
     _queryFocusRequestNotifier.removeListener(_onQueryFocusRequest);
-    _isSelectingNotifier.removeListener(_onActivityChanged);
     _isSelectingNotifier.dispose();
     _browseToSelectAnimation.dispose();
     _subscriptions

lib/widgets/filter_grids/common/filter_nav_page.dart

@@ -99,6 +99,12 @@ class FilterNavigationPage<T extends CollectionFilter, CSAD extends ChipSetActio
 class _FilterNavigationPageState<T extends CollectionFilter, CSAD extends ChipSetActionDelegate<T>> extends State<FilterNavigationPage<T, CSAD>> {
   final ValueNotifier<double> _appBarHeightNotifier = ValueNotifier(0);
 
+  @override
+  void dispose() {
+    _appBarHeightNotifier.dispose();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     return SelectionProvider<FilterGridItem<T>>(

lib/widgets/filter_grids/common/overlay.dart

@@ -27,6 +27,12 @@ class _ChipHighlightOverlayState extends State<ChipHighlightOverlay> {
 
   CollectionFilter get filter => widget.filter;
 
+  @override
+  void dispose() {
+    _highlightedNotifier.dispose();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     final highlightInfo = context.watch<HighlightInfo>();

lib/widgets/map/map_page.dart

@@ -159,12 +159,18 @@ class _ContentState extends State<_Content> with SingleTickerProviderStateMixin
     _subscriptions
       ..forEach((sub) => sub.cancel())
       ..clear();
-    _dotEntryNotifier.value?.metadataChangeNotifier.removeListener(_onMarkerEntryMetadataChanged);
-    _overlayAnimationController.dispose();
-    _overlayVisible.removeListener(_onOverlayVisibleChanged);
     _mapController.dispose();
+    _isPageAnimatingNotifier.dispose();
     _selectedIndexNotifier.dispose();
-    regionCollection?.dispose();
+    _regionCollectionNotifier.value?.dispose();
+    _regionCollectionNotifier.dispose();
+    _dotLocationNotifier.dispose();
+    _dotEntryNotifier.value?.metadataChangeNotifier.removeListener(_onMarkerEntryMetadataChanged);
+    _dotEntryNotifier.dispose();
+    _overlayOpacityNotifier.dispose();
+    _overlayVisible.dispose();
+    _overlayAnimationController.dispose();
+
     // provided collection should be a new instance specifically created
     // for the `MapPage` widget, so it can be safely disposed here
     widget.collection.dispose();

lib/widgets/settings/common/quick_actions/editor_page.dart

@@ -104,7 +104,13 @@ class _QuickActionEditorBodyState<T extends Object> extends State<QuickActionEdi
 
   @override
   void dispose() {
+    _draggedQuickAction.dispose();
+    _draggedAvailableAction.dispose();
+    _quickActionHighlight.dispose();
+    _availableActionHighlight.dispose();
     _quickActionsChangeNotifier.dispose();
+    _availableActionPageController.dispose();
+
     _stopLeavingTimer();
     super.dispose();
   }

lib/widgets/stats/stats_page.dart

@@ -108,6 +108,12 @@ class _StatsPageState extends State<StatsPage> with FeedbackMixin, VaultAwareMix
     });
   }
 
+  @override
+  void dispose() {
+    _isPageAnimatingNotifier.dispose();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     final useTvLayout = settings.useTvLayout;

lib/widgets/viewer/controls/controller.dart

@@ -65,7 +65,7 @@ class ViewerController {
     if (kFlutterMemoryAllocationsEnabled) {
       MemoryAllocations.instance.dispatchObjectDisposed(object: this);
     }
-    _autopilotNotifier.removeListener(_onAutopilotChanged);
+    _autopilotNotifier.dispose();
     _clearAutopilotAnimations();
     _stopPlayTimer();
     _streamController.close();

lib/widgets/viewer/info/metadata/xmp_card.dart

@@ -61,6 +61,12 @@ class _XmpCardState extends State<XmpCard> {
     }
   }
 
+  @override
+  void dispose() {
+    _indexNotifier.dispose();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     final _isIndexed = isIndexed;

lib/widgets/viewer/panorama_page.dart

@@ -50,7 +50,8 @@ class _PanoramaPageState extends State<PanoramaPage> {
 
   @override
   void dispose() {
-    _overlayVisible.removeListener(_onOverlayVisibleChanged);
+    _overlayVisible.dispose();
+    _sensorControl.dispose();
     super.dispose();
   }
 

lib/widgets/viewer/visual/raster.dart

@@ -88,6 +88,7 @@ class _RasterImageViewState extends State<RasterImageView> {
 
   @override
   void dispose() {
+    _fullImageLoaded.dispose();
     _unregisterFullImage();
     super.dispose();
   }

lib/widgets/viewer/visual/vector.dart

@@ -78,6 +78,7 @@ class _VectorImageViewState extends State<VectorImageView> {
 
   @override
   void dispose() {
+    _fullImageLoaded.dispose();
     _unregisterFullImage();
     super.dispose();
   }

lib/widgets/wallpaper_page.dart

@@ -119,10 +119,10 @@ class _EntryEditorState extends State<EntryEditor> with EntryViewControllerMixin
   @override
   void dispose() {
     cleanEntryControllers(entry);
-    _viewerController.dispose();
-    _videoActionDelegate.dispose();
+    _overlayVisible.dispose();
     _overlayAnimationController.dispose();
-    _overlayVisible.removeListener(_onOverlayVisibleChanged);
+    _videoActionDelegate.dispose();
+    _viewerController.dispose();
     super.dispose();
   }
 

plugins/aves_video/lib/src/controller.dart

@@ -19,6 +19,7 @@ abstract class AvesVideoController {
   final AvesEntryBase _entry;
   final PlaybackStateHandler playbackStateHandler;
   final VideoSettings settings;
+  bool _disposed = false;
 
   AvesEntryBase get entry => _entry;
 
@@ -41,6 +42,8 @@ abstract class AvesVideoController {
 
   @mustCallSuper
   Future<void> dispose() async {
+    assert(!_disposed);
+    _disposed = true;
     if (kFlutterMemoryAllocationsEnabled) {
       MemoryAllocations.instance.dispatchObjectDisposed(object: this);
     }

plugins/aves_video_ijk/lib/src/controller.dart

@@ -80,12 +80,19 @@ class IjkVideoController extends AvesVideoController {
   @override
   Future<void> dispose() async {
     await super.dispose();
+
     _initialPlayTimer?.cancel();
     _stopListening();
     await _valueStreamController.close();
     await _timedTextStreamController.close();
     await _instance.release();
+
     _completedNotifier.dispose();
+    canCaptureFrameNotifier.dispose();
+    canMuteNotifier.dispose();
+    canSetSpeedNotifier.dispose();
+    canSelectStreamNotifier.dispose();
+    sarNotifier.dispose();
   }
 
   void _startListening() {

plugins/aves_video_mpv/lib/src/controller.dart

@@ -12,7 +12,7 @@ import 'package:media_kit_video/media_kit_video.dart';
 class MpvVideoController extends AvesVideoController {
   late Player _instance;
   late VideoStatus _status;
-  bool _disposed = false, _firstFrameRendered = false;
+  bool _firstFrameRendered = false;
   final ValueNotifier<VideoController?> _controllerNotifier = ValueNotifier(null);
   final List<StreamSubscription> _subscriptions = [];
   final StreamController<VideoStatus> _statusStreamController = StreamController.broadcast();
@@ -63,16 +63,21 @@ class MpvVideoController extends AvesVideoController {
 
   @override
   Future<void> dispose() async {
-    assert(!_disposed);
-    _disposed = true;
     await super.dispose();
+
     _stopListening();
     _stopStreamFetchTimer();
     await _statusStreamController.close();
     await _timedTextStreamController.close();
     await _instance.dispose();
     _controllerNotifier.dispose();
+
     _completedNotifier.dispose();
+    canCaptureFrameNotifier.dispose();
+    canMuteNotifier.dispose();
+    canSetSpeedNotifier.dispose();
+    canSelectStreamNotifier.dispose();
+    sarNotifier.dispose();
   }
 
   void _startListening() {