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https://github.com/venera-app/venera.git
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a1474ca9c3
* Refactor import function & Allow import local comics without copying them to local path. * android: use file_picker instead, support directory access for android 10 * Improve import logic * Fix sql query. * Add ability to remove invalid favorite items. * Perform sort before choosing cover * Revert changes of "use file_picker instead". * Try catch on "check update" * Added module 'flutter_saf' * gitignore * remove unsupported arch in build.gradle * Use flutter_saf to handle android's directory and files, improve import logic. * revert changes of 'requestLegacyExternalStorage' * fix cbz import * openDirectoryPlatform * Remove double check on source folder * use openFilePlatform * remove unused import * improve local comic's path handling * bump version * fix pubspec format * return null when comic folder is empty
51 lines
1.5 KiB
Dart
51 lines
1.5 KiB
Dart
import 'dart:async' show Future, StreamController;
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:venera/network/images.dart';
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import 'package:venera/utils/io.dart';
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import 'base_image_provider.dart';
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import 'cached_image.dart' as image_provider;
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class CachedImageProvider
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extends BaseImageProvider<image_provider.CachedImageProvider> {
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/// Image provider for normal image.
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///
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/// [url] is the url of the image. Local file path is also supported.
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const CachedImageProvider(this.url, {this.headers, this.sourceKey, this.cid});
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final String url;
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final Map<String, String>? headers;
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final String? sourceKey;
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final String? cid;
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@override
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Future<Uint8List> load(StreamController<ImageChunkEvent> chunkEvents) async {
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if(url.startsWith("file://")) {
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var file = openFilePlatform(url.substring(7));
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return file.readAsBytes();
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}
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await for (var progress in ImageDownloader.loadThumbnail(url, sourceKey, cid)) {
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chunkEvents.add(ImageChunkEvent(
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cumulativeBytesLoaded: progress.currentBytes,
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expectedTotalBytes: progress.totalBytes,
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));
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if(progress.imageBytes != null) {
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return progress.imageBytes!;
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}
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}
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throw "Error: Empty response body.";
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}
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@override
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Future<CachedImageProvider> obtainKey(ImageConfiguration configuration) {
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return SynchronousFuture(this);
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}
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@override
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String get key => url + (sourceKey ?? "") + (cid ?? "");
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}
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