65 lines
2.5 KiB
Dart
65 lines
2.5 KiB
Dart
import 'package:carousel_slider/carousel_controller.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter_cache_manager/flutter_cache_manager.dart';
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import 'package:mc_gallery/features/home/views/image_carousel/image_carousel_view.dart';
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import '/features/core/abstracts/base_view_model.dart';
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import '/features/home/services/images_service.dart';
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import '/locator.dart';
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import '../../data/models/image_model.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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}) : _imagesService = imagesService;
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final ImagesService _imagesService;
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late final ValueNotifier<ImageModel> _currentImageModelNotifier;
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ValueListenable<ImageModel> get currentImageModelListenable => _currentImageModelNotifier;
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final CarouselController carouselController = CarouselController();
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@override
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Future<void> initialise(bool Function() mounted, [Object? arguments]) async {
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_currentImageModelNotifier = ValueNotifier(
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_imagesService.imageModels
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.elementAt((arguments! as ImageCarouselViewArguments).imageIndexKey),
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);
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log.info('Initialized with image: ${_currentImageModelNotifier.value.imageIndex}');
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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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void swipedTo({required int newIndex}) {
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_currentImageModelNotifier.value = _imagesService.imageModelAt(index: newIndex);
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log.info('Swiped to image: ${_currentImageModelNotifier.value.imageIndex}');
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}
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void onPreviousPressed() => carouselController.previousPage();
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void onNextPressed() => carouselController.nextPage();
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String get currentImageUrl => currentImageModelListenable.value.uri.toString();
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String get currentImageKey => currentImageModelListenable.value.imageIndex.toString();
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String get currentImageName => currentImageModelListenable.value.imageName;
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int get currentImageIndex => currentImageModelListenable.value.imageIndex;
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int get numberOfImages => _imagesService.numberOfImages;
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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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currentImageModelListenable.value.imageIndex > _imagesService.firstAvailableImageIndex;
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bool get hasNextImage =>
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currentImageModelListenable.value.imageIndex < _imagesService.lastAvailableImageIndex;
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static ImageCarouselViewModel get locate => Locator.locate();
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}
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