mastodon-ios/Mastodon/Helper/ImageProvider.swift

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2022-12-03 19:09:04 +01:00
//
// ImageProvider.swift
// Mastodon
//
// Created by Jed Fox on 2022-12-03.
//
import Foundation
import AlamofireImage
import UniformTypeIdentifiers
import UIKit
class ImageProvider: NSObject, NSItemProviderWriting {
let url: URL
let filter: ImageFilter?
init(url: URL, filter: ImageFilter? = nil) {
self.url = url
self.filter = filter
}
var itemProvider: NSItemProvider {
NSItemProvider(object: self)
}
static var writableTypeIdentifiersForItemProvider: [String] {
[UTType.png.identifier]
}
func loadData(withTypeIdentifier typeIdentifier: String, forItemProviderCompletionHandler completionHandler: @escaping @Sendable (Data?, Error?) -> Void) -> Progress? {
let receipt = UIImageView.af.sharedImageDownloader.download(URLRequest(url: url), filter: filter, completion: { response in
switch response.result {
case .failure(let error): completionHandler(nil, error)
case .success(let image): completionHandler(image.pngData(), nil)
}
})
return receipt?.request.downloadProgress
}
}