fix: view in timeline does not jump to the timeline correctly

mobile/lib/constants/constants.dart

@@ -53,3 +53,8 @@ const int kMinMonthsToEnableScrubberSnap = 12;
 const String kImmichAppStoreLink = "https://apps.apple.com/app/immich/id6449244941";
 const String kImmichPlayStoreLink = "https://play.google.com/store/apps/details?id=app.alextran.immich";
 const String kImmichLatestRelease = "https://github.com/immich-app/immich/releases/latest";
+
+const int kPhotoTabIndex = 0;
+const int kSearchTabIndex = 1;
+const int kAlbumTabIndex = 2;
+const int kLibraryTabIndex = 3;

mobile/lib/pages/common/tab_shell.page.dart

@@ -4,6 +4,7 @@ import 'package:auto_route/auto_route.dart';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/constants/constants.dart';
 import 'package:immich_mobile/domain/models/timeline.model.dart';
 import 'package:immich_mobile/domain/utils/event_stream.dart';
 import 'package:immich_mobile/extensions/build_context_extensions.dart';
@@ -13,6 +14,7 @@ import 'package:immich_mobile/providers/infrastructure/album.provider.dart';
 import 'package:immich_mobile/providers/infrastructure/memory.provider.dart';
 import 'package:immich_mobile/providers/infrastructure/people.provider.dart';
 import 'package:immich_mobile/providers/infrastructure/readonly_mode.provider.dart';
+import 'package:immich_mobile/providers/routes.provider.dart';
 import 'package:immich_mobile/providers/search/search_input_focus.provider.dart';
 import 'package:immich_mobile/providers/tab.provider.dart';
 import 'package:immich_mobile/providers/timeline/multiselect.provider.dart';
@@ -106,31 +108,33 @@ class _TabShellPageState extends ConsumerState<TabShellPage> {
 }
 
 void _onNavigationSelected(TabsRouter router, int index, WidgetRef ref) {
+  ref.read(currentTabIndexProvider.notifier).state = index;
+
   // On Photos page menu tapped
-  if (router.activeIndex == 0 && index == 0) {
+  if (router.activeIndex == kPhotoTabIndex && index == kPhotoTabIndex) {
     EventStream.shared.emit(const ScrollToTopEvent());
   }
 
-  if (index == 0) {
+  if (index == kPhotoTabIndex) {
     ref.invalidate(driftMemoryFutureProvider);
   }
 
-  if (router.activeIndex != 1 && index == 1) {
+  if (router.activeIndex != kSearchTabIndex && index == kSearchTabIndex) {
     ref.read(searchPreFilterProvider.notifier).clear();
   }
 
   // On Search page tapped
-  if (router.activeIndex == 1 && index == 1) {
+  if (router.activeIndex == kSearchTabIndex && index == kSearchTabIndex) {
     ref.read(searchInputFocusProvider).requestFocus();
   }
 
   // Album page
-  if (index == 2) {
+  if (index == kAlbumTabIndex) {
     ref.read(remoteAlbumProvider.notifier).refresh();
   }
 
   // Library page
-  if (index == 3) {
+  if (index == kLibraryTabIndex) {
     ref.invalidate(localAlbumProvider);
     ref.invalidate(driftGetAllPeopleProvider);
   }

mobile/lib/presentation/widgets/action_buttons/similar_photos_action_button.widget.dart

@@ -3,12 +3,14 @@ import 'dart:async';
 import 'package:auto_route/auto_route.dart';
 import 'package:flutter/material.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/constants/constants.dart';
 import 'package:immich_mobile/entities/asset.entity.dart';
 import 'package:immich_mobile/extensions/translate_extensions.dart';
 import 'package:immich_mobile/models/search/search_filter.model.dart';
 import 'package:immich_mobile/presentation/pages/search/paginated_search.provider.dart';
 import 'package:immich_mobile/presentation/widgets/action_buttons/base_action_button.widget.dart';
 import 'package:immich_mobile/presentation/widgets/asset_viewer/asset_viewer.state.dart';
+import 'package:immich_mobile/providers/routes.provider.dart';
 import 'package:immich_mobile/routing/router.dart';
 
 class SimilarPhotosActionButton extends ConsumerWidget {
@@ -35,7 +37,21 @@ class SimilarPhotosActionButton extends ConsumerWidget {
             mediaType: AssetType.image,
           ),
         );
-    unawaited(context.router.popAndPush(const DriftSearchRoute()));
+
+    /// Using and currentTabIndex to make sure we are using the correct
+    /// navigation behavior. We want to be able to navigate back to the
+    /// main timline using View In Timeline button without the need of
+    /// waiting for the timeline to be rebuild. At the same time, we want
+    /// to refresh the search page when tapping the Similar Photos button
+    /// while already in the Search tab.
+    final currentTabIndex = (ref.read(currentTabIndexProvider.notifier).state);
+
+    if (currentTabIndex != kSearchTabIndex) {
+      unawaited(context.router.navigate(const DriftSearchRoute()));
+      ref.read(currentTabIndexProvider.notifier).state = kSearchTabIndex;
+    } else {
+      unawaited(context.router.popAndPush(const DriftSearchRoute()));
+    }
   }
 
   @override

mobile/lib/presentation/widgets/timeline/timeline.widget.dart

@@ -228,6 +228,8 @@ class _SliverTimelineState extends ConsumerState<_SliverTimeline> {
               curve: Curves.easeInOut,
             )
             .whenComplete(() => ref.read(timelineStateProvider.notifier).setScrubbing(false));
+      } else {
+        ref.read(timelineStateProvider.notifier).setScrubbing(false);
       }
     });
   }

mobile/lib/providers/routes.provider.dart

@@ -5,3 +5,4 @@ final inLockedViewProvider = StateProvider<bool>((ref) => false);
 final currentRouteNameProvider = StateProvider<String?>((ref) => null);
 final previousRouteNameProvider = StateProvider<String?>((ref) => null);
 final previousRouteDataProvider = StateProvider<RouteSettings?>((ref) => null);
+final currentTabIndexProvider = StateProvider<int>((ref) => 0);