136 lines
4.2 KiB
Dart
136 lines
4.2 KiB
Dart
import 'dart:convert';
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import 'dart:typed_data';
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import 'package:didvan/services/storage/storage.dart';
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import 'package:didvan/widgets/shimmer_placeholder.dart';
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import 'package:http/http.dart' as http;
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import 'package:cached_network_image/cached_network_image.dart';
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import 'package:didvan/config/design_config.dart';
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import 'package:didvan/config/theme_data.dart';
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import 'package:didvan/services/network/request.dart';
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import 'package:didvan/services/network/request_helper.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:skeleton_text/skeleton_text.dart';
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class SkeletonImage extends StatefulWidget {
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final String imageUrl;
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final double width;
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final double height;
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final BorderRadius? borderRadius;
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final double? aspectRatio;
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const SkeletonImage({
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Key? key,
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required this.imageUrl,
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this.width = 300,
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this.height = 140,
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this.borderRadius = DesignConfig.lowBorderRadius,
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this.aspectRatio,
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}) : super(key: key);
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@override
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State<SkeletonImage> createState() => _SkeletonImageState();
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}
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class _SkeletonImageState extends State<SkeletonImage> {
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Uint8List? _bytes;
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@override
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void initState() {
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if (kIsWeb) _getImage();
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super.initState();
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}
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Future<void> _getImage() async {
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final url = RequestHelper.baseUrl + widget.imageUrl;
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final storage = StorageService.webStorage;
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String? imageCache = storage['image-cache'];
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final Map data = imageCache == null ? {} : jsonDecode(imageCache);
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if (data.containsKey(url)) {
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_bytes = Uint8List.fromList(
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List<int>.from(data[url]),
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);
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} else {
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_bytes = (await http.get(
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Uri.parse(url),
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headers: {'Authorization': 'Bearer ${RequestService.token}'},
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))
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.bodyBytes;
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addImageToStorage();
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}
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if (mounted) {
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setState(() {});
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}
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}
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void addImageToStorage() {
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final storage = StorageService.webStorage;
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String? imageCache = storage['image-cache'];
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final Map data = imageCache == null ? {} : Map.from(jsonDecode(imageCache));
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data.addAll({RequestHelper.baseUrl + widget.imageUrl: _bytes});
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StorageService.webStorage.addAll({'image-cache': jsonEncode(data)});
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}
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@override
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Widget build(BuildContext context) {
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return _aspectRatioGenerator(
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child: Builder(builder: (context) {
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if (kIsWeb) {
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return Builder(
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builder: (context) {
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if (_bytes == null || _bytes!.isEmpty) {
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return ShimmerPlaceholder(
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borderRadius: widget.borderRadius,
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);
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}
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return ClipRRect(
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borderRadius: widget.borderRadius,
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child: Image.memory(
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_bytes!,
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width: widget.width,
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height: widget.height,
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fit: BoxFit.cover,
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),
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);
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},
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);
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}
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return CachedNetworkImage(
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httpHeaders: {'Authorization': 'Bearer ${RequestService.token}'},
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width: widget.width,
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height: widget.height,
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imageUrl: RequestHelper.baseUrl + widget.imageUrl,
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imageBuilder: (context, imageProvider) => Container(
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decoration: BoxDecoration(
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borderRadius: widget.borderRadius ?? DesignConfig.lowBorderRadius,
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image: DecorationImage(
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image: imageProvider,
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fit: BoxFit.cover,
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),
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),
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),
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progressIndicatorBuilder: (context, url, progress) =>
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SkeletonAnimation(
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shimmerColor: Theme.of(context).colorScheme.border,
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borderRadius: widget.borderRadius ?? DesignConfig.lowBorderRadius,
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child: Container(
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decoration: BoxDecoration(
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color: Theme.of(context).colorScheme.disabledBackground,
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borderRadius: widget.borderRadius,
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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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Widget _aspectRatioGenerator({required Widget child}) =>
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widget.aspectRatio == null
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? SizedBox(child: child)
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: AspectRatio(
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aspectRatio: widget.aspectRatio!,
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child: child,
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);
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}
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