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This commit is contained in:
Mehul Ahal 2022-12-23 11:20:46 +01:00 • committed by Mguy13
parent 47945dbec7
commit 4ade7f1682
19 changed files with 503 additions and 59 deletions
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48
lib/features/home/views/gallery/gallery_view_model.dart
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@ -1,3 +1,5 @@
import 'dart:async';
import 'package:flutter/foundation.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_cache_manager/flutter_cache_manager.dart';
@ -10,6 +12,7 @@ import '/features/home/services/image_cache_manager_service.dart';
import '/features/home/services/images_service.dart';
import '/features/home/views/image_carousel/image_carousel_view.dart';
import '/locator.dart';
import '../../data/enums/search_option.dart';
class GalleryViewModel extends BaseViewModel {
GalleryViewModel({
@ -30,6 +33,13 @@ class GalleryViewModel extends BaseViewModel {
final ValueNotifier<bool> _isDisplayingPressingPrompt = ValueNotifier(true);
ValueListenable<bool> get isDisplayingPressingPrompt => _isDisplayingPressingPrompt;
final ValueNotifier<bool> _isSearchingNotifier = ValueNotifier(false);
ValueListenable<bool> get isSearchingListenable => _isSearchingNotifier;
final ValueNotifier<SearchOption> _searchOptionNotifier = ValueNotifier(SearchOption.web);
ValueListenable<SearchOption> get searchOptionListenable => _searchOptionNotifier;
final ValueNotifier<List<ImageModel>> _imageSearchResultsNotifier = ValueNotifier([]);
ValueListenable<List<ImageModel>> get imageSearchResultsListenable => _imageSearchResultsNotifier;
@override
Future<void> initialise(bool Function() mounted, [arguments]) async {
super.initialise(mounted, arguments);
@ -40,9 +50,44 @@ class GalleryViewModel extends BaseViewModel {
super.dispose();
}
Future<void> onSearchTermUpdate(String searchTerm) async {
// If empty-string (from backspacing) -> reset state.
if (searchTerm.isEmpty) {
_imageSearchResultsNotifier.value = [];
return;
}
// Detached call to prevent UI blocking
unawaited(_imagesService
.searchImages(
imageNamePart: searchTerm,
searchOption: searchOptionListenable.value,
)
.then(
(final fetchedImageModels) => _imageSearchResultsNotifier.value = fetchedImageModels));
// Force-update to trigger listening to `lastQueryResultDone()`.
_imageSearchResultsNotifier.notifyListeners();
}
void searchPressed() {
// If transitioning from 'Searching', clear previous results immediately
if (_isSearchingNotifier.value) _imageSearchResultsNotifier.value = [];
_isSearchingNotifier.value = !_isSearchingNotifier.value;
}
Future<void> get lastQueryResultDone => _imagesService.lastQueryIsCompleted;
void onSearchOptionChanged(SearchOption? option) => _searchOptionNotifier.value = option!;
void onPromptPressed() => _isDisplayingPressingPrompt.value = false;
Iterable<ImageModel> get imageModels => _imagesService.imageModels;
Future<void> get initImageFetchIsDone => _imagesService.initAwaiter;
double? downloadProgressValue({required DownloadProgress progress}) =>
progress.totalSize != null ? progress.downloaded / progress.totalSize! : null;
void pushImageCarouselView(BuildContext context, {required ImageModel imageModel}) =>
_navigationService.pushImageCarouselView(
@ -53,7 +98,4 @@ class GalleryViewModel extends BaseViewModel {
);
static GalleryViewModel get locate => Locator.locate();
double? downloadProgressValue({required DownloadProgress progress}) =>
progress.totalSize != null ? progress.downloaded / progress.totalSize! : null;
}