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Dhruv1797Dhruv1797
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feat: added-image-library-section.
1 parent 1c6f8fc commit dde65b1

25 files changed

Lines changed: 2627 additions & 4 deletions

‎lib/image_library/image_library.dart‎

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import 'package:flutter/material.dart';
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import 'package:magic_epaper_app/image_library/model/saved_image_model.dart';
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import 'package:magic_epaper_app/image_library/provider/image_library_provider.dart';
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import 'package:magic_epaper_app/image_library/services/image_operations_service.dart';
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import 'package:magic_epaper_app/image_library/widgets/app_bar_widget.dart';
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import 'package:magic_epaper_app/image_library/widgets/dialogs/batch_delete_confirmation_dialog.dart';
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import 'package:magic_epaper_app/image_library/widgets/dialogs/delete_confirmation_dialog.dart';
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import 'package:magic_epaper_app/image_library/widgets/empty_state_widget.dart';
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import 'package:magic_epaper_app/image_library/widgets/image_grid_widget.dart';
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import 'package:magic_epaper_app/image_library/widgets/dialogs/image_preview_dialog.dart';
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import 'package:magic_epaper_app/image_library/widgets/search_and_filter_widget.dart';
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import 'package:magic_epaper_app/constants/color_constants.dart';
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import 'package:provider/provider.dart';
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class ImageLibraryScreen extends StatefulWidget {
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const ImageLibraryScreen({super.key});
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@override
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State<ImageLibraryScreen> createState() => _ImageLibraryScreenState();
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}
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class _ImageLibraryScreenState extends State<ImageLibraryScreen> {
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final TextEditingController _searchController = TextEditingController();
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bool _isDeleteMode = false;
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Set<String> _selectedImages = <String>{};
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late ImageOperationsService _operationsService;
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@override
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void initState() {
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super.initState();
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_operationsService = ImageOperationsService(context);
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WidgetsBinding.instance.addPostFrameCallback((_) {
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context.read<ImageLibraryProvider>().loadSavedImages();
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});
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}
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@override
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void dispose() {
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_searchController.dispose();
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super.dispose();
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}
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void _handleImageTap(SavedImage image) {
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if (_isDeleteMode) {
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_toggleImageSelection(image.id);
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} else {
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_showImagePreview(image);
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}
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}
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void _toggleImageSelection(String imageId) {
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setState(() {
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if (_selectedImages.contains(imageId)) {
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_selectedImages.remove(imageId);
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} else {
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_selectedImages.add(imageId);
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}
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});
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}
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void _showImagePreview(SavedImage image) {
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final provider = context.read<ImageLibraryProvider>();
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showDialog(
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context: context,
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builder: (context) => ImagePreviewDialog(
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image: image,
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epd: _operationsService.getEpdFromImage(image),
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onDelete: () => _showDeleteDialog(image, provider),
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onRename: (newName) =>
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_operationsService.renameImage(image, newName, provider),
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onTransfer: () => _operationsService.transferSingleImage(image),
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),
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);
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}
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void _showDeleteDialog(SavedImage image, ImageLibraryProvider provider) {
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showDialog(
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context: context,
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barrierDismissible: false,
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builder: (context) => DeleteConfirmationDialog(
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image: image,
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onConfirm: () => _operationsService.deleteImage(image, provider),
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),
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);
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}
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void _showBatchDeleteDialog() {
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final provider = context.read<ImageLibraryProvider>();
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final selectedImageObjects = provider.savedImages
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.where((image) => _selectedImages.contains(image.id))
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.toList();
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showDialog(
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context: context,
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barrierDismissible: false,
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builder: (context) => BatchDeleteConfirmationDialog(
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selectedImages: selectedImageObjects,
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onConfirm: () => _performBatchDelete(selectedImageObjects, provider),
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),
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);
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}
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Future<void> _performBatchDelete(
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List<SavedImage> selectedImages,
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ImageLibraryProvider provider,
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) async {
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await _operationsService.batchDeleteImages(selectedImages, provider);
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_exitDeleteMode();
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}
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void _exitDeleteMode() {
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setState(() {
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_isDeleteMode = false;
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_selectedImages.clear();
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});
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}
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void _enterDeleteMode() {
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setState(() {
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_isDeleteMode = true;
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_selectedImages.clear();
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});
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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backgroundColor: Colors.white,
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appBar: LibraryAppBar(
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isDeleteMode: _isDeleteMode,
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selectedCount: _selectedImages.length,
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onDeletePressed: _showBatchDeleteDialog,
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onExitDeleteMode: _exitDeleteMode,
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onEnterDeleteMode: _enterDeleteMode,
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),
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body: Consumer<ImageLibraryProvider>(
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builder: (context, provider, child) {
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if (provider.isLoading) {
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return const Center(
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child: CircularProgressIndicator(color: colorAccent),
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);
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}
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if (provider.savedImages.isEmpty) {
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return const EmptyStateWidget();
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}
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return Column(
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children: [
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SearchAndFilterWidget(
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searchController: _searchController,
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provider: provider,
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),
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Expanded(
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child: ImageGridWidget(
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images: provider.filteredImages,
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isDeleteMode: _isDeleteMode,
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selectedImages: _selectedImages,
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onImageTap: _handleImageTap,
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),
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),
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],
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);
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},
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),
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);
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}
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}

‎lib/image_library/model/saved_image_model.dart‎

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import 'dart:typed_data';
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import 'dart:convert';
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class SavedImage {
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final String id;
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final String name;
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final Uint8List imageData;
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final DateTime createdAt;
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final String source;
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final Map<String, dynamic>? metadata;
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SavedImage({
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required this.id,
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required this.name,
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required this.imageData,
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required this.createdAt,
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required this.source,
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this.metadata,
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});
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Map<String, dynamic> toJson() {
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return {
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'id': id,
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'name': name,
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'imageData': base64Encode(imageData),
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'createdAt': createdAt.toIso8601String(),
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'source': source,
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'metadata': metadata,
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};
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}
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factory SavedImage.fromJson(Map<String, dynamic> json) {
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Uint8List imageData;
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final imageDataJson = json['imageData'];
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if (imageDataJson is String) {
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imageData = base64Decode(imageDataJson);
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} else if (imageDataJson is List) {
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print("this method");
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imageData = Uint8List.fromList(List<int>.from(imageDataJson));
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} else {
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throw FormatException('Invalid imageData format');
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}
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return SavedImage(
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id: json['id'],
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name: json['name'],
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imageData: imageData,
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createdAt: DateTime.parse(json['createdAt']),
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source: json['source'],
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metadata: json['metadata'],
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);
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}
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}

‎lib/image_library/provider/image_library_provider.dart‎

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import 'dart:typed_data';
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import 'package:flutter/material.dart';
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import 'package:magic_epaper_app/image_library/model/saved_image_model.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'dart:convert';
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class ImageLibraryProvider extends ChangeNotifier {
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List<SavedImage> _savedImages = [];
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List<SavedImage> get savedImages => _savedImages;
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bool _isLoading = false;
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bool get isLoading => _isLoading;
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String _searchQuery = '';
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String get searchQuery => _searchQuery;
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String _selectedSource = 'all';
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String get selectedSource => _selectedSource;
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List<SavedImage> get filteredImages {
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var filtered = _savedImages.where((image) {
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final matchesSearch =
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image.name.toLowerCase().contains(_searchQuery.toLowerCase());
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final matchesSource =
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_selectedSource == 'all' || image.source == _selectedSource;
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return matchesSearch && matchesSource;
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}).toList();
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filtered.sort((a, b) => b.createdAt.compareTo(a.createdAt));
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return filtered;
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}
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Future<void> loadSavedImages() async {
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_isLoading = true;
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notifyListeners();
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try {
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final prefs = await SharedPreferences.getInstance();
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final savedImagesJson = prefs.getStringList('saved_images') ?? [];
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_savedImages = savedImagesJson
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.map((json) => SavedImage.fromJson(jsonDecode(json)))
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.toList();
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} catch (e) {
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debugPrint('Error loading saved images: $e');
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}
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_isLoading = false;
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notifyListeners();
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}
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Future<void> saveImage({
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required String name,
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required Uint8List imageData,
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required String source,
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Map<String, dynamic>? metadata,
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}) async {
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final savedImage = SavedImage(
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id: DateTime.now().millisecondsSinceEpoch.toString(),
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name: name,
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imageData: imageData,
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createdAt: DateTime.now(),
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source: source,
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metadata: metadata,
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);
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_savedImages.add(savedImage);
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await _persistImages();
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notifyListeners();
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}
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Future<void> deleteImage(String id) async {
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_savedImages.removeWhere((image) => image.id == id);
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await _persistImages();
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notifyListeners();
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}
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Future<void> renameImage(String id, String newName) async {
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final index = _savedImages.indexWhere((image) => image.id == id);
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if (index != -1) {
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final oldImage = _savedImages[index];
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_savedImages[index] = SavedImage(
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id: oldImage.id,
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name: newName,
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imageData: oldImage.imageData,
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createdAt: oldImage.createdAt,
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source: oldImage.source,
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metadata: oldImage.metadata,
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);
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await _persistImages();
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notifyListeners();
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}
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}
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void updateSearchQuery(String query) {
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_searchQuery = query;
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notifyListeners();
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}
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void updateSourceFilter(String source) {
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_selectedSource = source;
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notifyListeners();
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}
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Future<void> _persistImages() async {
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try {
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final prefs = await SharedPreferences.getInstance();
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final savedImagesJson =
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_savedImages.map((image) => jsonEncode(image.toJson())).toList();
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await prefs.setStringList('saved_images', savedImagesJson);
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} catch (e) {
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debugPrint('Error persisting images: $e');
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}
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}
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}

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