Revert "refactor: Move back to cached network image for better avatar performance"
This reverts commit d9ab6ad8b3.
pull/998/head
Krille
10 months ago
parent
d9ab6ad8b3
commit
938e1a91ae
@ -1,69 +1,192 @@
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import 'dart:typed_data';
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import 'package:flutter/material.dart';
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import 'package:cached_network_image/cached_network_image.dart';
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import 'package:http/http.dart' as http;
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import 'package:matrix/matrix.dart';
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import 'package:fluffychat/config/themes.dart';
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import 'package:fluffychat/utils/matrix_sdk_extensions/matrix_file_extension.dart';
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import 'package:fluffychat/widgets/matrix.dart';
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class MxcImage extends StatelessWidget {
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class MxcImage extends StatefulWidget {
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final Uri? uri;
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final Event? event;
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final double? width;
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final double? height;
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final BoxFit? fit;
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final bool isThumbnail;
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final bool animated;
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final Duration retryDuration;
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final Duration animationDuration;
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final Curve animationCurve;
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final ThumbnailMethod thumbnailMethod;
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final Widget Function(BuildContext context)? placeholder;
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final String? cacheKey;
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const MxcImage({
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this.uri,
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this.event,
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this.width,
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this.height,
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this.fit,
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this.placeholder,
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this.isThumbnail = true,
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this.animated = false,
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this.animationDuration = FluffyThemes.animationDuration,
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this.retryDuration = const Duration(seconds: 2),
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this.animationCurve = FluffyThemes.animationCurve,
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this.thumbnailMethod = ThumbnailMethod.scale,
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this.cacheKey,
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super.key,
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});
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@override
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Widget build(BuildContext context) {
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final uri = this.uri;
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if (uri == null) {
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return placeholder?.call(context) ?? const Placeholder();
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}
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State<MxcImage> createState() => _MxcImageState();
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}
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class _MxcImageState extends State<MxcImage> {
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static final Map<String, Uint8List> _imageDataCache = {};
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Uint8List? _imageDataNoCache;
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Uint8List? get _imageData {
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final cacheKey = widget.cacheKey;
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return cacheKey == null ? _imageDataNoCache : _imageDataCache[cacheKey];
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}
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set _imageData(Uint8List? data) {
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if (data == null) return;
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final cacheKey = widget.cacheKey;
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cacheKey == null
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? _imageDataNoCache = data
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: _imageDataCache[cacheKey] = data;
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}
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bool? _isCached;
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Future<void> _load() async {
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final client = Matrix.of(context).client;
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final uri = widget.uri;
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final event = widget.event;
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if (uri != null) {
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final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;
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final width = widget.width;
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final realWidth = width == null ? null : width * devicePixelRatio;
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final height = widget.height;
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final realHeight = height == null ? null : height * devicePixelRatio;
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final httpUri = widget.isThumbnail
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? uri.getThumbnail(
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client,
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width: realWidth,
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height: realHeight,
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animated: widget.animated,
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method: widget.thumbnailMethod,
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)
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: uri.getDownloadLink(client);
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final storeKey = widget.isThumbnail ? httpUri : uri;
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if (_isCached == null) {
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final cachedData = await client.database?.getFile(storeKey);
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if (cachedData != null) {
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if (!mounted) return;
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setState(() {
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_imageData = cachedData;
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_isCached = true;
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});
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return;
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}
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_isCached = false;
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}
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final response = await http.get(httpUri);
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if (response.statusCode != 200) {
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if (response.statusCode == 404) {
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return;
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}
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throw Exception();
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}
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final remoteData = response.bodyBytes;
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if (!mounted) return;
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setState(() {
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_imageData = remoteData;
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});
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await client.database?.storeFile(storeKey, remoteData, 0);
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}
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if (event != null) {
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final data = await event.downloadAndDecryptAttachment(
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getThumbnail: widget.isThumbnail,
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);
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if (data.detectFileType is MatrixImageFile) {
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if (!mounted) return;
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setState(() {
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_imageData = data.bytes;
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});
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return;
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}
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}
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}
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void _tryLoad(_) async {
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if (_imageData != null) {
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return;
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}
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try {
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await _load();
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} catch (_) {
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if (!mounted) return;
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await Future.delayed(widget.retryDuration);
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_tryLoad(_);
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}
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}
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@override
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void initState() {
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super.initState();
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WidgetsBinding.instance.addPostFrameCallback(_tryLoad);
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}
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Widget placeholder(BuildContext context) =>
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widget.placeholder?.call(context) ??
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Container(
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width: widget.width,
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height: widget.height,
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alignment: Alignment.center,
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child: const CircularProgressIndicator.adaptive(strokeWidth: 2),
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);
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@override
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Widget build(BuildContext context) {
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final data = _imageData;
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final hasData = data != null && data.isNotEmpty;
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final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;
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final width = this.width;
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final realWidth = width == null ? null : width * devicePixelRatio;
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final height = this.height;
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final realHeight = height == null ? null : height * devicePixelRatio;
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final imageUrl = isThumbnail
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? uri.getThumbnail(
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client,
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width: realWidth,
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height: realHeight,
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animated: animated,
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method: thumbnailMethod,
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)
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: uri.getDownloadLink(client);
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return CachedNetworkImage(
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imageUrl: imageUrl.toString(),
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width: width,
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height: height,
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fit: fit,
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cacheKey: cacheKey,
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filterQuality: isThumbnail ? FilterQuality.low : FilterQuality.medium,
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errorWidget: placeholder == null
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? null
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: (context, __, ___) => placeholder!.call(context),
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return AnimatedCrossFade(
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crossFadeState:
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hasData ? CrossFadeState.showSecond : CrossFadeState.showFirst,
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duration: FluffyThemes.animationDuration,
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firstChild: placeholder(context),
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secondChild: hasData
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? Image.memory(
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data,
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width: widget.width,
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height: widget.height,
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fit: widget.fit,
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filterQuality:
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widget.isThumbnail ? FilterQuality.low : FilterQuality.medium,
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errorBuilder: (context, __, ___) {
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_isCached = false;
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_imageData = null;
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WidgetsBinding.instance.addPostFrameCallback(_tryLoad);
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return placeholder(context);
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},
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)
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: SizedBox(
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width: widget.width,
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height: widget.height,
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),
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);
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}
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}
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