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Added lazy loading bookmarks per tag

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This commit is contained in:
Juan Gilsanz Polo
2024-02-25 04:16:36 +01:00
parent 826ca58f85
commit 119c165bc8
4 changed files with 232 additions and 235 deletions
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18
lib/screens/tag_bookmarks/model/tag_bookmarks.model.dart
View File

@@ -1,9 +1,25 @@
import 'package:linkdy/constants/enums.dart';
import 'package:linkdy/models/data/bookmarks.dart';
import 'package:linkdy/models/data/tags.dart';
class TagBookmarksModel {
String? tagId;
Tag? tag;
int currentPage;
int limit;
LoadStatus initialLoadStatus;
List<Bookmark> bookmarks;
int maxNumber;
bool loadingMore;
TagBookmarksModel({
this.tagId,
this.tag,
this.currentPage = 0,
this.limit = 100,
this.limit = 30,
this.initialLoadStatus = LoadStatus.loading,
required this.bookmarks,
this.maxNumber = 0,
this.loadingMore = false,
});
}

83
lib/screens/tag_bookmarks/provider/tag_bookmarks.provider.dart
View File

@@ -2,39 +2,68 @@ import 'package:riverpod_annotation/riverpod_annotation.dart';
import 'package:linkdy/screens/tag_bookmarks/model/tag_bookmarks.model.dart';
import 'package:linkdy/constants/enums.dart';
import 'package:linkdy/models/data/tags.dart';
import 'package:linkdy/models/data/bookmarks.dart';
import 'package:linkdy/models/api_response.dart';
import 'package:linkdy/models/data/tag_bookmarks.dart';
import 'package:linkdy/providers/api_client_provider.dart';
part 'tag_bookmarks.provider.g.dart';
@riverpod
FutureOr<ApiResponse<TagBookmarksResponse?>> tagIdBookmarksRequest(TagIdBookmarksRequestRef ref, String tagId) async {
final tagResult = await ref.watch(apiClientProvider)!.fetchTagById(tagId);
if (tagResult.content == null) return const ApiResponse(successful: false);
final bookmarksResult = await ref.watch(apiClientProvider)!.fetchBookmarks(q: tagResult.content!.name);
return ApiResponse(
successful: bookmarksResult.successful,
content: TagBookmarksResponse(
bookmarksResponse: bookmarksResult.content,
tag: tagResult.content,
),
);
FutureOr<void> tagBookmarksRequest(TagBookmarksRequestRef ref, Tag? tag, String? tagId, int limit) async {
final tagResult = tag == null ? await ref.watch(apiClientProvider)!.fetchTagById(tagId!) : null;
if (tagResult != null && tagResult.successful == false) {
ref.read(tagBookmarksProvider.notifier).setInitialLoadStatus(LoadStatus.error);
return;
}
final bookmarksResult = await ref.watch(apiClientProvider)!.fetchBookmarks(
q: tag != null ? tag.name : tagResult!.content!.name,
limit: limit,
offset: 0,
);
if (bookmarksResult.successful == true) {
ref.read(tagBookmarksProvider).bookmarks = bookmarksResult.content!.results!;
ref.read(tagBookmarksProvider).maxNumber = bookmarksResult.content!.count!;
if (tag == null) ref.read(tagBookmarksProvider).tag = tagResult!.content!;
ref.read(tagBookmarksProvider).currentPage = 0;
ref.read(tagBookmarksProvider).loadingMore = false;
ref.read(tagBookmarksProvider).initialLoadStatus = LoadStatus.loaded;
} else {
ref.read(tagBookmarksProvider).initialLoadStatus = LoadStatus.error;
}
ref.read(tagBookmarksProvider.notifier).notifyListeners();
}
@riverpod
FutureOr<ApiResponse<BookmarksResponse>> tagBookmarksRequest(TagBookmarksRequestRef ref, Tag tag) async {
final bookmarksResult = await ref.watch(apiClientProvider)!.fetchBookmarks(q: tag.name);
return bookmarksResult;
FutureOr<void> tagBookmarksRequestLoadMore(TagBookmarksRequestLoadMoreRef ref) async {
final provider = ref.watch(tagBookmarksProvider);
final newOffset = provider.limit * (provider.currentPage + 1);
final result = await ref.watch(apiClientProvider)!.fetchBookmarks(
q: provider.tag!.name,
limit: provider.limit,
offset: newOffset,
);
await Future.delayed(Duration(seconds: 4));
if (result.successful == true) {
provider.bookmarks = [...provider.bookmarks, ...result.content!.results!];
provider.maxNumber = result.content!.count!;
provider.currentPage = provider.currentPage + 1;
}
ref.read(tagBookmarksProvider.notifier).setLoadingMore(false);
}
@riverpod
class TagBookmarks extends _$TagBookmarks {
@override
TagBookmarksModel build() {
return TagBookmarksModel();
return TagBookmarksModel(
bookmarks: [],
);
}
void setCurrentPage(int page) {
@@ -44,4 +73,22 @@ class TagBookmarks extends _$TagBookmarks {
void setLimit(int limit) {
state.limit = limit;
}
void setInitialLoadStatus(LoadStatus status) {
state.initialLoadStatus = status;
ref.notifyListeners();
}
void setLoadingMore(bool status) {
state.loadingMore = status;
ref.notifyListeners();
}
Future<void> refresh() async {
await ref.read(tagBookmarksRequestProvider(state.tag, state.tagId, state.limit).future);
}
void notifyListeners() {
ref.notifyListeners();
}
}

223
lib/screens/tag_bookmarks/provider/tag_bookmarks.provider.g.dart
View File

@@ -6,8 +6,8 @@ part of 'tag_bookmarks.provider.dart';
// RiverpodGenerator
// **************************************************************************
String _$tagIdBookmarksRequestHash() =>
r'2deadbe50293503ac94cd5d8656d6055c6bdc190';
String _$tagBookmarksRequestHash() =>
r'92613aa119dadb65b7b399b9c779197673689908';
/// Copied from Dart SDK
class _SystemHash {
@@ -30,158 +30,25 @@ class _SystemHash {
}
}
/// See also [tagIdBookmarksRequest].
@ProviderFor(tagIdBookmarksRequest)
const tagIdBookmarksRequestProvider = TagIdBookmarksRequestFamily();
/// See also [tagIdBookmarksRequest].
class TagIdBookmarksRequestFamily
extends Family<AsyncValue<ApiResponse<TagBookmarksResponse?>>> {
/// See also [tagIdBookmarksRequest].
const TagIdBookmarksRequestFamily();
/// See also [tagIdBookmarksRequest].
TagIdBookmarksRequestProvider call(
String tagId,
) {
return TagIdBookmarksRequestProvider(
tagId,
);
}
@override
TagIdBookmarksRequestProvider getProviderOverride(
covariant TagIdBookmarksRequestProvider provider,
) {
return call(
provider.tagId,
);
}
static const Iterable<ProviderOrFamily>? _dependencies = null;
@override
Iterable<ProviderOrFamily>? get dependencies => _dependencies;
static const Iterable<ProviderOrFamily>? _allTransitiveDependencies = null;
@override
Iterable<ProviderOrFamily>? get allTransitiveDependencies =>
_allTransitiveDependencies;
@override
String? get name => r'tagIdBookmarksRequestProvider';
}
/// See also [tagIdBookmarksRequest].
class TagIdBookmarksRequestProvider
extends AutoDisposeFutureProvider<ApiResponse<TagBookmarksResponse?>> {
/// See also [tagIdBookmarksRequest].
TagIdBookmarksRequestProvider(
String tagId,
) : this._internal(
(ref) => tagIdBookmarksRequest(
ref as TagIdBookmarksRequestRef,
tagId,
),
from: tagIdBookmarksRequestProvider,
name: r'tagIdBookmarksRequestProvider',
debugGetCreateSourceHash:
const bool.fromEnvironment('dart.vm.product')
? null
: _$tagIdBookmarksRequestHash,
dependencies: TagIdBookmarksRequestFamily._dependencies,
allTransitiveDependencies:
TagIdBookmarksRequestFamily._allTransitiveDependencies,
tagId: tagId,
);
TagIdBookmarksRequestProvider._internal(
super._createNotifier, {
required super.name,
required super.dependencies,
required super.allTransitiveDependencies,
required super.debugGetCreateSourceHash,
required super.from,
required this.tagId,
}) : super.internal();
final String tagId;
@override
Override overrideWith(
FutureOr<ApiResponse<TagBookmarksResponse?>> Function(
TagIdBookmarksRequestRef provider)
create,
) {
return ProviderOverride(
origin: this,
override: TagIdBookmarksRequestProvider._internal(
(ref) => create(ref as TagIdBookmarksRequestRef),
from: from,
name: null,
dependencies: null,
allTransitiveDependencies: null,
debugGetCreateSourceHash: null,
tagId: tagId,
),
);
}
@override
AutoDisposeFutureProviderElement<ApiResponse<TagBookmarksResponse?>>
createElement() {
return _TagIdBookmarksRequestProviderElement(this);
}
@override
bool operator ==(Object other) {
return other is TagIdBookmarksRequestProvider && other.tagId == tagId;
}
@override
int get hashCode {
var hash = _SystemHash.combine(0, runtimeType.hashCode);
hash = _SystemHash.combine(hash, tagId.hashCode);
return _SystemHash.finish(hash);
}
}
mixin TagIdBookmarksRequestRef
on AutoDisposeFutureProviderRef<ApiResponse<TagBookmarksResponse?>> {
/// The parameter `tagId` of this provider.
String get tagId;
}
class _TagIdBookmarksRequestProviderElement
extends AutoDisposeFutureProviderElement<ApiResponse<TagBookmarksResponse?>>
with TagIdBookmarksRequestRef {
_TagIdBookmarksRequestProviderElement(super.provider);
@override
String get tagId => (origin as TagIdBookmarksRequestProvider).tagId;
}
String _$tagBookmarksRequestHash() =>
r'd198a94eafd0a78ef19de4064da4ddfba26ec1d3';
/// See also [tagBookmarksRequest].
@ProviderFor(tagBookmarksRequest)
const tagBookmarksRequestProvider = TagBookmarksRequestFamily();
/// See also [tagBookmarksRequest].
class TagBookmarksRequestFamily
extends Family<AsyncValue<ApiResponse<BookmarksResponse>>> {
class TagBookmarksRequestFamily extends Family<AsyncValue<void>> {
/// See also [tagBookmarksRequest].
const TagBookmarksRequestFamily();
/// See also [tagBookmarksRequest].
TagBookmarksRequestProvider call(
Tag tag,
Tag? tag,
String? tagId,
int limit,
) {
return TagBookmarksRequestProvider(
tag,
tagId,
limit,
);
}
@@ -191,6 +58,8 @@ class TagBookmarksRequestFamily
) {
return call(
provider.tag,
provider.tagId,
provider.limit,
);
}
@@ -210,15 +79,18 @@ class TagBookmarksRequestFamily
}
/// See also [tagBookmarksRequest].
class TagBookmarksRequestProvider
extends AutoDisposeFutureProvider<ApiResponse<BookmarksResponse>> {
class TagBookmarksRequestProvider extends AutoDisposeFutureProvider<void> {
/// See also [tagBookmarksRequest].
TagBookmarksRequestProvider(
Tag tag,
Tag? tag,
String? tagId,
int limit,
) : this._internal(
(ref) => tagBookmarksRequest(
ref as TagBookmarksRequestRef,
tag,
tagId,
limit,
),
from: tagBookmarksRequestProvider,
name: r'tagBookmarksRequestProvider',
@@ -230,6 +102,8 @@ class TagBookmarksRequestProvider
allTransitiveDependencies:
TagBookmarksRequestFamily._allTransitiveDependencies,
tag: tag,
tagId: tagId,
limit: limit,
);
TagBookmarksRequestProvider._internal(
@@ -240,15 +114,17 @@ class TagBookmarksRequestProvider
required super.debugGetCreateSourceHash,
required super.from,
required this.tag,
required this.tagId,
required this.limit,
}) : super.internal();
final Tag tag;
final Tag? tag;
final String? tagId;
final int limit;
@override
Override overrideWith(
FutureOr<ApiResponse<BookmarksResponse>> Function(
TagBookmarksRequestRef provider)
create,
FutureOr<void> Function(TagBookmarksRequestRef provider) create,
) {
return ProviderOverride(
origin: this,
@@ -260,46 +136,77 @@ class TagBookmarksRequestProvider
allTransitiveDependencies: null,
debugGetCreateSourceHash: null,
tag: tag,
tagId: tagId,
limit: limit,
),
);
}
@override
AutoDisposeFutureProviderElement<ApiResponse<BookmarksResponse>>
createElement() {
AutoDisposeFutureProviderElement<void> createElement() {
return _TagBookmarksRequestProviderElement(this);
}
@override
bool operator ==(Object other) {
return other is TagBookmarksRequestProvider && other.tag == tag;
return other is TagBookmarksRequestProvider &&
other.tag == tag &&
other.tagId == tagId &&
other.limit == limit;
}
@override
int get hashCode {
var hash = _SystemHash.combine(0, runtimeType.hashCode);
hash = _SystemHash.combine(hash, tag.hashCode);
hash = _SystemHash.combine(hash, tagId.hashCode);
hash = _SystemHash.combine(hash, limit.hashCode);
return _SystemHash.finish(hash);
}
}
mixin TagBookmarksRequestRef
on AutoDisposeFutureProviderRef<ApiResponse<BookmarksResponse>> {
mixin TagBookmarksRequestRef on AutoDisposeFutureProviderRef<void> {
/// The parameter `tag` of this provider.
Tag get tag;
Tag? get tag;
/// The parameter `tagId` of this provider.
String? get tagId;
/// The parameter `limit` of this provider.
int get limit;
}
class _TagBookmarksRequestProviderElement
extends AutoDisposeFutureProviderElement<ApiResponse<BookmarksResponse>>
with TagBookmarksRequestRef {
extends AutoDisposeFutureProviderElement<void> with TagBookmarksRequestRef {
_TagBookmarksRequestProviderElement(super.provider);
@override
Tag get tag => (origin as TagBookmarksRequestProvider).tag;
Tag? get tag => (origin as TagBookmarksRequestProvider).tag;
@override
String? get tagId => (origin as TagBookmarksRequestProvider).tagId;
@override
int get limit => (origin as TagBookmarksRequestProvider).limit;
}
String _$tagBookmarksHash() => r'bcfcc986b8d58ccff54ed6dec3ab2a1a8c33a4f7';
String _$tagBookmarksRequestLoadMoreHash() =>
r'3235c66b13a41c52611b86c2b26ecf9376ca1524';
/// See also [tagBookmarksRequestLoadMore].
@ProviderFor(tagBookmarksRequestLoadMore)
final tagBookmarksRequestLoadMoreProvider =
AutoDisposeFutureProvider<void>.internal(
tagBookmarksRequestLoadMore,
name: r'tagBookmarksRequestLoadMoreProvider',
debugGetCreateSourceHash: const bool.fromEnvironment('dart.vm.product')
? null
: _$tagBookmarksRequestLoadMoreHash,
dependencies: null,
allTransitiveDependencies: null,
);
typedef TagBookmarksRequestLoadMoreRef = AutoDisposeFutureProviderRef<void>;
String _$tagBookmarksHash() => r'74e6463830052de2f05c628455d5ccca9faef765';
/// See also [TagBookmarks].
@ProviderFor(TagBookmarks)

143
lib/screens/tag_bookmarks/ui/tag_bookmarks.dart
View File

@@ -1,5 +1,4 @@
import 'package:flutter/material.dart';
import 'package:flutter/scheduler.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:linkdy/screens/bookmarks/ui/bookmark_item.dart';
@@ -7,15 +6,13 @@ import 'package:linkdy/screens/tag_bookmarks/provider/tag_bookmarks.provider.dar
import 'package:linkdy/widgets/error_screen.dart';
import 'package:linkdy/widgets/no_data_screen.dart';
import 'package:linkdy/models/api_response.dart';
import 'package:linkdy/models/data/bookmarks.dart';
import 'package:linkdy/models/data/tag_bookmarks.dart';
import 'package:linkdy/models/data/tags.dart';
import 'package:linkdy/constants/enums.dart';
import 'package:linkdy/providers/router_provider.dart';
import 'package:linkdy/router/paths.dart';
import 'package:linkdy/i18n/strings.g.dart';
class TagBookmarksScreen extends ConsumerWidget {
class TagBookmarksScreen extends ConsumerStatefulWidget {
final String? tagId;
final Tag? tag;
@@ -26,31 +23,48 @@ class TagBookmarksScreen extends ConsumerWidget {
}) : super(key: key);
@override
Widget build(BuildContext context, WidgetRef ref) {
// Redirect to initial screen if no tagId or tag
SchedulerBinding.instance.addPostFrameCallback((_) {
if (tag == null && tagId == null) {
final router = ref.watch(routerProvider);
while (router.canPop() == true) {
router.pop();
}
router.pushReplacement(RoutesPaths.bookmarks);
TagBookmarksScreenState createState() => TagBookmarksScreenState();
}
class TagBookmarksScreenState extends ConsumerState<TagBookmarksScreen> {
@override
void initState() {
if (widget.tag == null && widget.tagId == null) {
final router = ref.watch(routerProvider);
while (router.canPop() == true) {
router.pop();
}
});
router.pushReplacement(RoutesPaths.bookmarks);
return;
}
if (widget.tag != null) {
ref.read(tagBookmarksProvider).tag = widget.tag;
}
if (widget.tagId != null) {
ref.read(tagBookmarksProvider).tagId = widget.tagId;
}
ref.read(tagBookmarksRequestProvider(widget.tag, widget.tagId, ref.read(tagBookmarksProvider).limit));
if (tag == null && tagId == null) return const Material();
super.initState();
}
final bookmarksResponse =
tag != null ? ref.watch(tagBookmarksRequestProvider(tag!)) : ref.watch(tagIdBookmarksRequestProvider(tagId!));
@override
Widget build(BuildContext context) {
if (widget.tag == null && widget.tagId == null) return const Material();
final bookmarks = tag != null
? (bookmarksResponse.value as ApiResponse<BookmarksResponse>?)?.content
: (bookmarksResponse.value as ApiResponse<TagBookmarksResponse?>?)?.content?.bookmarksResponse;
final provider = ref.watch(tagBookmarksProvider);
final title = tag != null
? tag!.name!
: ((bookmarksResponse.value as ApiResponse<TagBookmarksResponse?>?)?.content?.tag?.name ?? '');
bool scrollListener(ScrollUpdateNotification scrollNotification) {
if (scrollNotification.metrics.extentAfter < 100 &&
provider.loadingMore == false &&
provider.bookmarks.length < provider.maxNumber) {
ref.read(tagBookmarksProvider.notifier).setLoadingMore(true);
ref.watch(tagBookmarksRequestLoadMoreProvider);
}
return false;
}
print(provider.maxNumber);
return Scaffold(
body: NestedScrollView(
headerSliverBuilder: (context, innerBoxIsScrolled) => [
@@ -61,52 +75,65 @@ class TagBookmarksScreen extends ConsumerWidget {
floating: true,
centerTitle: false,
forceElevated: innerBoxIsScrolled,
title: Text(title != "" ? "#$title" : ""),
title: Text(
widget.tag != null
? "#${widget.tag!.name}"
: provider.tag != null
? "#${provider.tag!.name}"
: '',
),
),
),
],
body: SafeArea(
top: false,
bottom: false,
child: Builder(
builder: (context) => RefreshIndicator(
displacement: 120,
onRefresh: () => tag != null
? ref.watch(tagBookmarksRequestProvider(tag!).future)
: ref.watch(tagIdBookmarksRequestProvider(tagId!).future),
child: CustomScrollView(
slivers: [
SliverOverlapInjector(
handle: NestedScrollView.sliverOverlapAbsorberHandleFor(context),
),
if (bookmarksResponse.isLoading && !bookmarksResponse.isRefreshing)
const SliverFillRemaining(
child: Center(child: CircularProgressIndicator()),
onRefresh: () => ref.read(tagBookmarksProvider.notifier).refresh(),
child: NotificationListener(
onNotification: scrollListener,
child: CustomScrollView(
slivers: [
SliverOverlapInjector(
handle: NestedScrollView.sliverOverlapAbsorberHandleFor(context),
),
if (bookmarksResponse.value != null && bookmarksResponse.value!.successful == false)
SliverFillRemaining(
child: ErrorScreen(
error: t.bookmarks.cannotLoadBookmarks,
if (provider.initialLoadStatus == LoadStatus.loading)
const SliverFillRemaining(
child: Center(child: CircularProgressIndicator()),
),
),
if (bookmarksResponse.value != null &&
bookmarksResponse.value!.successful == true &&
bookmarks!.results!.isEmpty)
SliverFillRemaining(
child: NoDataScreen(
message: t.tags.tagBookmarks.noBookmarksWithThisTag,
if (provider.initialLoadStatus == LoadStatus.error)
SliverFillRemaining(
child: ErrorScreen(
error: t.bookmarks.cannotLoadBookmarks,
),
),
),
if (bookmarksResponse.value != null &&
bookmarksResponse.value!.successful == true &&
bookmarks!.results!.isNotEmpty)
SliverList.builder(
itemCount: bookmarks.results!.length,
itemBuilder: (context, index) => BookmarkItem(
bookmark: bookmarks.results![index],
if (provider.bookmarks.isEmpty)
SliverFillRemaining(
child: NoDataScreen(
message: t.tags.tagBookmarks.noBookmarksWithThisTag,
),
),
),
],
if (provider.bookmarks.isNotEmpty)
SliverList.builder(
itemCount:
provider.loadingMore == true ? provider.bookmarks.length + 1 : provider.bookmarks.length,
itemBuilder: (context, index) {
if (provider.loadingMore == true && index == provider.bookmarks.length) {
return const Padding(
padding: EdgeInsets.all(16),
child: Center(
child: CircularProgressIndicator(),
),
);
}
return BookmarkItem(
bookmark: provider.bookmarks[index],
);
},
),
],
),
),
),
),