update bottom sheet. (#190)

lib/blocs/stories/stories_bloc.dart

@@ -17,11 +17,13 @@ part 'stories_state.dart';
 class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
   StoriesBloc({
     required PreferenceCubit preferenceCubit,
+    required FilterCubit filterCubit,
     OfflineRepository? offlineRepository,
     StoriesRepository? storiesRepository,
     PreferenceRepository? preferenceRepository,
     Logger? logger,
   })  : _preferenceCubit = preferenceCubit,
+        _filterCubit = filterCubit,
         _offlineRepository =
             offlineRepository ?? locator.get<OfflineRepository>(),
         _storiesRepository =
@@ -45,6 +47,7 @@ class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
   }
 
   final PreferenceCubit _preferenceCubit;
+  final FilterCubit _filterCubit;
   final OfflineRepository _offlineRepository;
   final StoriesRepository _storiesRepository;
   final PreferenceRepository _preferenceRepository;
@@ -224,10 +227,15 @@ class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
     Emitter<StoriesState> emit,
   ) async {
     final bool hasRead = await _preferenceRepository.hasRead(event.story.id);
+    final bool hidden = _filterCubit.state.keywords.any(
+      (String keyword) =>
+          event.story.title.toLowerCase().contains(keyword) ||
+          event.story.text.toLowerCase().contains(keyword),
+    );
     emit(
       state.copyWithStoryAdded(
         type: event.type,
-        story: event.story,
+        story: event.story.copyWith(hidden: hidden),
         hasRead: hasRead,
       ),
     );

lib/cubits/comments/comments_cubit.dart

@@ -6,6 +6,7 @@ import 'package:equatable/equatable.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 import 'package:hacki/config/locator.dart';
+import 'package:hacki/cubits/cubits.dart';
 import 'package:hacki/main.dart';
 import 'package:hacki/models/models.dart';
 import 'package:hacki/repositories/repositories.dart';
@@ -20,6 +21,7 @@ part 'comments_state.dart';
 
 class CommentsCubit extends Cubit<CommentsState> {
   CommentsCubit({
+    required FilterCubit filterCubit,
     required CollapseCache collapseCache,
     CommentCache? commentCache,
     OfflineRepository? offlineRepository,
@@ -30,7 +32,8 @@ class CommentsCubit extends Cubit<CommentsState> {
     required Item item,
     required FetchMode defaultFetchMode,
     required CommentsOrder defaultCommentsOrder,
-  })  : _collapseCache = collapseCache,
+  })  : _filterCubit = filterCubit,
+        _collapseCache = collapseCache,
         _commentCache = commentCache ?? locator.get<CommentCache>(),
         _offlineRepository =
             offlineRepository ?? locator.get<OfflineRepository>(),
@@ -48,6 +51,7 @@ class CommentsCubit extends Cubit<CommentsState> {
           ),
         );
 
+  final FilterCubit _filterCubit;
   final CollapseCache _collapseCache;
   final CommentCache _commentCache;
   final OfflineRepository _offlineRepository;
@@ -348,9 +352,12 @@ class CommentsCubit extends Cubit<CommentsState> {
       _commentCache.cacheComment(comment);
       _sembastRepository.cacheComment(comment);
 
+      final bool hidden = _filterCubit.state.keywords.any(
+        (String keyword) => comment.text.toLowerCase().contains(keyword),
+      );
       final List<Comment> updatedComments = <Comment>[
         ...state.comments,
-        comment
+        comment.copyWith(hidden: hidden),
       ];
 
       emit(state.copyWith(comments: updatedComments));

lib/cubits/cubits.dart

@@ -3,6 +3,7 @@ export 'collapse/collapse_cubit.dart';
 export 'comments/comments_cubit.dart';
 export 'edit/edit_cubit.dart';
 export 'fav/fav_cubit.dart';
+export 'filter/filter_cubit.dart';
 export 'history/history_cubit.dart';
 export 'notification/notification_cubit.dart';
 export 'pin/pin_cubit.dart';

lib/cubits/filter/filter_cubit.dart

@@ -0,0 +1,40 @@
+import 'package:bloc/bloc.dart';
+import 'package:equatable/equatable.dart';
+import 'package:hacki/config/locator.dart';
+import 'package:hacki/repositories/repositories.dart';
+
+part 'filter_state.dart';
+
+class FilterCubit extends Cubit<FilterState> {
+  FilterCubit({PreferenceRepository? preferenceRepository})
+      : _preferenceRepository =
+            preferenceRepository ?? locator.get<PreferenceRepository>(),
+        super(FilterState.init()) {
+    init();
+  }
+
+  final PreferenceRepository _preferenceRepository;
+
+  void init() {
+    _preferenceRepository.filterKeywords.then(
+      (List<String> keywords) => emit(
+        state.copyWith(
+          keywords: keywords.toSet(),
+        ),
+      ),
+    );
+  }
+
+  void addKeyword(String keyword) {
+    final Set<String> updated = Set<String>.from(state.keywords)..add(keyword);
+    emit(state.copyWith(keywords: updated));
+    _preferenceRepository.updateFilterKeywords(updated.toList(growable: false));
+  }
+
+  void removeKeyword(String keyword) {
+    final Set<String> updated = Set<String>.from(state.keywords)
+      ..remove(keyword);
+    emit(state.copyWith(keywords: updated));
+    _preferenceRepository.updateFilterKeywords(updated.toList(growable: false));
+  }
+}

lib/cubits/filter/filter_state.dart

@@ -0,0 +1,20 @@
+part of 'filter_cubit.dart';
+
+class FilterState extends Equatable {
+  const FilterState({
+    required this.keywords,
+  });
+
+  FilterState.init() : keywords = <String>{};
+
+  final Set<String> keywords;
+
+  FilterState copyWith({Set<String>? keywords}) {
+    return FilterState(
+      keywords: keywords ?? this.keywords,
+    );
+  }
+
+  @override
+  List<Object?> get props => <Object?>[keywords];
+}

lib/extensions/state_extension.dart

@@ -108,11 +108,12 @@ extension StateExtension on State {
       linkToShare = await showModalBottomSheet<String>(
         context: context,
         builder: (BuildContext context) {
-          return Container(
-            height: 140,
+          return SafeArea(
+            child: ColoredBox(
               color: Theme.of(context).canvasColor,
               child: Material(
                 child: Column(
+                  mainAxisSize: MainAxisSize.min,
                   children: <Widget>[
                     ListTile(
                       onTap: () => Navigator.pop(context, item.url),
@@ -128,6 +129,7 @@ extension StateExtension on State {
                   ],
                 ),
               ),
+            ),
           );
         },
       );

lib/main.dart

@@ -183,9 +183,14 @@ class HackiApp extends StatelessWidget {
           lazy: false,
           create: (BuildContext context) => PreferenceCubit(),
         ),
+        BlocProvider<FilterCubit>(
+          lazy: false,
+          create: (BuildContext context) => FilterCubit(),
+        ),
         BlocProvider<StoriesBloc>(
           create: (BuildContext context) => StoriesBloc(
             preferenceCubit: context.read<PreferenceCubit>(),
+            filterCubit: context.read<FilterCubit>(),
           ),
         ),
         BlocProvider<AuthBloc>(

lib/models/item/buildable_comment.dart

@@ -15,6 +15,7 @@ class BuildableComment extends Comment with Buildable {
     required super.kids,
     required super.dead,
     required super.deleted,
+    required super.hidden,
     required super.level,
     required this.elements,
   });
@@ -31,6 +32,7 @@ class BuildableComment extends Comment with Buildable {
           dead: comment.dead,
           deleted: comment.deleted,
           level: comment.level,
+          hidden: comment.hidden,
         );
 
   @override

lib/models/item/buildable_story.dart

@@ -17,6 +17,7 @@ class BuildableStory extends Story with Buildable {
     required super.type,
     required super.url,
     required super.parts,
+    required super.hidden,
     required this.elements,
   });
 
@@ -33,6 +34,7 @@ class BuildableStory extends Story with Buildable {
           type: story.type,
           url: story.url,
           parts: story.parts,
+          hidden: story.hidden,
         );
 
   BuildableStory.fromTitleOnlyStory(Story story)

lib/models/item/comment.dart

@@ -11,6 +11,7 @@ class Comment extends Item {
     required super.kids,
     required super.dead,
     required super.deleted,
+    required super.hidden,
     required this.level,
   }) : super(
           descendants: 0,
@@ -26,7 +27,10 @@ class Comment extends Item {
 
   String get metadata => '''by $by $timeAgo''';
 
-  Comment copyWith({int? level}) {
+  Comment copyWith({
+    int? level,
+    bool? hidden,
+  }) {
     return Comment(
       id: id,
       time: time,
@@ -37,6 +41,7 @@ class Comment extends Item {
       kids: kids,
       dead: dead,
       deleted: deleted,
+      hidden: hidden ?? this.hidden,
       level: level ?? this.level,
     );
   }

lib/models/item/item.dart

@@ -28,6 +28,7 @@ class Item extends Equatable {
     required this.type,
     required this.parts,
     required this.descendants,
+    required this.hidden,
   });
 
   Item.empty()
@@ -39,9 +40,10 @@ class Item extends Equatable {
         title = '',
         url = '',
         kids = <int>[],
-        dead = false,
         parts = <int>[],
+        dead = false,
         deleted = false,
+        hidden = false,
         parent = 0,
         text = '',
         type = '';
@@ -60,7 +62,8 @@ class Item extends Equatable {
         deleted = json['deleted'] as bool? ?? false,
         parent = json['parent'] as int? ?? 0,
         parts = (json['parts'] as List<dynamic>?)?.cast<int>() ?? <int>[],
-        type = json['type'] as String? ?? '';
+        type = json['type'] as String? ?? '',
+        hidden = json['hidden'] as bool? ?? false;
 
   final int id;
   final int time;
@@ -73,6 +76,11 @@ class Item extends Equatable {
   final bool deleted;
   final bool dead;
 
+  /// Whether or not the item should be hidden.
+  /// true if any of filter keywords set by user presents in [text]
+  /// or [title].
+  final bool hidden;
+
   final String by;
   final String text;
   final String url;
@@ -128,5 +136,6 @@ class Item extends Equatable {
         type,
         parts,
         descendants,
+        hidden,
       ];
 }

lib/models/item/poll_option.dart

@@ -20,6 +20,7 @@ class PollOption extends Item {
           descendants: 0,
           dead: false,
           deleted: false,
+          hidden: false,
         );
 
   PollOption.empty()

lib/models/item/story.dart

@@ -14,6 +14,7 @@ class Story extends Item {
     required super.text,
     required super.kids,
     required super.parts,
+    required super.hidden,
   }) : super(
           dead: false,
           deleted: false,
@@ -38,10 +39,28 @@ class Story extends Item {
           parent: 0,
           text: '',
           type: '',
+          hidden: false,
         );
 
   Story.fromJson(super.json) : super.fromJson();
 
+  Story copyWith({bool? hidden}) {
+    return Story(
+      descendants: descendants,
+      id: id,
+      score: score,
+      time: time,
+      by: by,
+      title: title,
+      type: type,
+      url: url,
+      text: text,
+      kids: kids,
+      parts: parts,
+      hidden: hidden ?? this.hidden,
+    );
+  }
+
   String get metadata =>
       '''$score point${score > 1 ? 's' : ''} by $by $timeAgo | $descendants comment${descendants > 1 ? 's' : ''}''';
 

lib/models/preference.dart

@@ -17,7 +17,7 @@ abstract class Preference<T> extends Equatable with SettingsDisplayable {
   static final List<Preference<dynamic>> allPreferences =
       UnmodifiableListView<Preference<dynamic>>(
     <Preference<dynamic>>[
-      // Order of these first four preferences does not matter.
+      // Order of these preferences does not matter.
       FetchModePreference(),
       CommentsOrderPreference(),
       FontPreference(),

lib/repositories/preference_repository.dart

@@ -22,6 +22,7 @@ class PreferenceRepository {
   static const String _usernameKey = 'username';
   static const String _passwordKey = 'password';
   static const String _blocklistKey = 'blocklist';
+  static const String _filterKeywordsKey = 'filterKeywords';
   static const String _pinnedStoriesIdsKey = 'pinnedStoriesIds';
   static const String _unreadCommentsIdsKey = 'unreadCommentsIds';
   static const String _lastReadStoryIdKey = 'lastReadStoryId';
@@ -274,6 +275,20 @@ class PreferenceRepository {
 
   //#endregion
 
+  //#region filter
+
+  Future<List<String>> get filterKeywords async => _prefs.then(
+        (SharedPreferences prefs) =>
+            prefs.getStringList(_filterKeywordsKey) ?? <String>[],
+      );
+
+  Future<void> updateFilterKeywords(List<String> keywords) async {
+    final SharedPreferences prefs = await _prefs;
+    await prefs.setStringList(_filterKeywordsKey, keywords);
+  }
+
+  //#endregion
+
   //#region pins
 
   Future<List<int>> get pinnedStoriesIds async {

lib/repositories/search_repository.dart

@@ -58,6 +58,7 @@ class SearchRepository {
           parent: parentId,
           dead: false,
           deleted: false,
+          hidden: false,
           level: 0,
         );
         yield comment;
@@ -80,6 +81,7 @@ class SearchRepository {
           // response doesn't contain kids and parts.
           kids: const <int>[],
           parts: const <int>[],
+          hidden: false,
         );
         yield story;
       }

lib/screens/item/item_screen.dart

@@ -64,6 +64,7 @@ class ItemScreen extends StatefulWidget {
           providers: <BlocProvider<dynamic>>[
             BlocProvider<CommentsCubit>(
               create: (BuildContext context) => CommentsCubit(
+                filterCubit: context.read<FilterCubit>(),
                 isOfflineReading:
                     context.read<StoriesBloc>().state.isOfflineReading,
                 item: args.item,
@@ -106,6 +107,7 @@ class ItemScreen extends StatefulWidget {
           providers: <BlocProvider<dynamic>>[
             BlocProvider<CommentsCubit>(
               create: (BuildContext context) => CommentsCubit(
+                filterCubit: context.read<FilterCubit>(),
                 isOfflineReading:
                     context.read<StoriesBloc>().state.isOfflineReading,
                 item: args.item,
@@ -434,18 +436,17 @@ class _ItemScreenState extends State<ItemScreen> with RouteAware {
   }
 
   void onRightMoreTapped(Comment comment) {
-    const double bottomSheetHeight = 140;
-
     HapticFeedback.lightImpact();
     showModalBottomSheet<void>(
       context: context,
       builder: (BuildContext context) {
-        return Container(
-          height: bottomSheetHeight,
+        return SafeArea(
+          child: ColoredBox(
             color: Theme.of(context).canvasColor,
             child: Material(
               color: Palette.transparent,
               child: Column(
+                mainAxisSize: MainAxisSize.min,
                 children: <Widget>[
                   ListTile(
                     leading: const Icon(Icons.av_timer),
@@ -475,6 +476,7 @@ class _ItemScreenState extends State<ItemScreen> with RouteAware {
                 ],
               ),
             ),
+          ),
         );
       },
     );

lib/screens/item/widgets/more_popup_menu.dart

@@ -23,9 +23,6 @@ class MorePopupMenu extends StatelessWidget {
   final bool isBlocked;
   final VoidCallback onLoginTapped;
 
-  static const double _storySheetHeight = 485;
-  static const double _commentSheetHeight = 470;
-
   @override
   Widget build(BuildContext context) {
     return BlocProvider<VoteCubit>(
@@ -69,12 +66,12 @@ class MorePopupMenu extends StatelessWidget {
         builder: (BuildContext context, VoteState voteState) {
           final bool upvoted = voteState.vote == Vote.up;
           final bool downvoted = voteState.vote == Vote.down;
-          return Container(
-            height: item is Comment ? _commentSheetHeight : _storySheetHeight,
+          return ColoredBox(
             color: Theme.of(context).canvasColor,
             child: Material(
               color: Palette.transparent,
               child: Column(
+                mainAxisSize: MainAxisSize.min,
                 children: <Widget>[
                   BlocProvider<UserCubit>(
                     create: (BuildContext context) =>

lib/screens/profile/widgets/settings.dart

@@ -232,6 +232,12 @@ class _SettingsState extends State<Settings> {
                     onTap: showThemeSettingDialog,
                   ),
                   const Divider(),
+                  ListTile(
+                    title: const Text(
+                      'Filter Keywords',
+                    ),
+                    onTap: onFilterKeywordsTapped,
+                  ),
                   ListTile(
                     title: const Text(
                       'Export Favorites',
@@ -640,6 +646,100 @@ class _SettingsState extends State<Settings> {
     }
   }
 
+  void onFilterKeywordsTapped() {
+    showDialog<void>(
+      context: context,
+      builder: (BuildContext context) {
+        return AlertDialog(
+          title: const Text(
+            'Filter Keywords',
+            style: TextStyle(
+              fontSize: TextDimens.pt16,
+            ),
+          ),
+          content: BlocBuilder<FilterCubit, FilterState>(
+            builder: (BuildContext context, FilterState state) {
+              return Column(
+                mainAxisSize: MainAxisSize.min,
+                children: <Widget>[
+                  if (state.keywords.isEmpty)
+                    const CenteredText(
+                      text:
+                          '''story or comment that contains keywords here will be hidden.''',
+                    ),
+                  Wrap(
+                    spacing: Dimens.pt4,
+                    children: <Widget>[
+                      for (final String keyword in state.keywords)
+                        ActionChip(
+                          avatar: const Icon(
+                            Icons.close,
+                            size: TextDimens.pt14,
+                          ),
+                          label: Text(keyword),
+                          onPressed: () => context
+                              .read<FilterCubit>()
+                              .removeKeyword(keyword),
+                        ),
+                    ],
+                  ),
+                ],
+              );
+            },
+          ),
+          actions: <Widget>[
+            TextButton(
+              onPressed: onAddKeywordTapped,
+              child: const Text(
+                'Add keyword',
+              ),
+            ),
+            TextButton(
+              onPressed: () => Navigator.pop(context),
+              child: const Text(
+                'Okay',
+              ),
+            ),
+          ],
+        );
+      },
+    );
+  }
+
+  void onAddKeywordTapped() {
+    final TextEditingController controller = TextEditingController();
+    showDialog<void>(
+      context: context,
+      builder: (BuildContext context) {
+        return AlertDialog(
+          content: TextField(
+            autofocus: true,
+            controller: controller,
+          ),
+          actions: <Widget>[
+            TextButton(
+              onPressed: () => Navigator.pop(context),
+              child: const Text(
+                'Cancel',
+              ),
+            ),
+            TextButton(
+              onPressed: () {
+                final String keyword = controller.text.trim();
+                if (keyword.isEmpty) return;
+                context.read<FilterCubit>().addKeyword(keyword.toLowerCase());
+                Navigator.pop(context);
+              },
+              child: const Text(
+                'Confirm',
+              ),
+            ),
+          ],
+        );
+      },
+    );
+  }
+
   Future<void> onExportFavoritesTapped() async {
     final List<int> allFavorites = context.read<FavCubit>().state.favIds;
 

lib/screens/widgets/comment_tile.dart

@@ -43,6 +43,7 @@ class CommentTile extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    if (comment.hidden) return const SizedBox.shrink();
     return BlocProvider<CollapseCubit>(
       key: ValueKey<String>('${comment.id}-BlocProvider'),
       lazy: false,

lib/screens/widgets/story_tile.dart

@@ -31,6 +31,7 @@ class StoryTile extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    if (story.hidden) return const SizedBox.shrink();
     if (showWebPreview) {
       final double height = context.storyTileHeight;
       return Semantics(

pubspec.lock

@@ -1375,4 +1375,4 @@ packages:
     version: "3.1.1"
 sdks:
   dart: ">=2.19.0 <3.0.0"
-  flutter: ">=3.7.8"
+  flutter: ">=3.7.9"

pubspec.yaml

@@ -1,11 +1,11 @@
 name: hacki
 description: A Hacker News reader.
-version: 1.3.4+103
+version: 1.4.0+104
 publish_to: none
 
 environment:
   sdk: ">=2.17.0 <3.0.0"
-  flutter: "3.7.8"
+  flutter: "3.7.9"
 
 dependencies:
   adaptive_theme: ^3.2.0