55 lines
2.1 KiB
Dart
55 lines
2.1 KiB
Dart
import 'package:flutter/foundation.dart';
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import 'package:flutter_cache_manager/flutter_cache_manager.dart';
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import '/features/core/abstracts/base_view_model.dart';
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import '/features/core/services/logging_service.dart';
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import '/features/core/services/navigation_service.dart';
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import '/features/home/data/models/image_model.dart';
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import '/features/home/services/images_service.dart';
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import '/features/home/views/image_carousel/image_carousel_view.dart';
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import '/locator.dart';
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class ImageCarouselViewModel extends BaseViewModel {
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ImageCarouselViewModel({
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required ImagesService imagesService,
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required NavigationService navigationService,
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required LoggingService loggingService,
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}) : _imagesService = imagesService,
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_navigationService = navigationService,
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_loggingService = loggingService;
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final ImagesService _imagesService;
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final NavigationService _navigationService;
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final LoggingService _loggingService;
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late final ValueNotifier<ImageModel> _currentImageModel;
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ValueListenable<ImageModel> get currentImageModel => _currentImageModel;
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@override
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Future<void> initialise(bool Function() mounted, [arguments]) async {
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_currentImageModel = ValueNotifier(_imagesService.imageModels
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.elementAt((arguments! as ImageCarouselViewArguments).imageIndexKey));
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super.initialise(mounted, arguments);
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}
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@override
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Future<void> dispose() async {
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super.dispose();
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}
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String get currentImageUrl => currentImageModel.value.uri.toString();
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String get currentImageKey => currentImageModel.value.imageIndex.toString();
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String get currentImageName => currentImageModel.value.imageName;
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double? downloadProgressValue({required DownloadProgress progress}) =>
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progress.totalSize != null ? progress.downloaded / progress.totalSize! : null;
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bool get hasPreviousImage =>
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currentImageModel.value.imageIndex > _imagesService.firstAvailableImageIndex;
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bool get hasNextImage =>
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currentImageModel.value.imageIndex < _imagesService.lastAvailableImageIndex;
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static ImageCarouselViewModel get locate => Locator.locate();
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}
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