65 lines
1.6 KiB
Swift
65 lines
1.6 KiB
Swift
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// AttachmentView.swift
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// Tusker
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//
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// Created by Shadowfacts on 8/31/18.
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// Copyright © 2018 Shadowfacts. All rights reserved.
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//
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import UIKit
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import MastodonKit
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protocol AttachmentViewDelegate {
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func showLargeAttachment(for attachmentView: AttachmentView)
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}
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class AttachmentView: UIImageView {
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var delegate: AttachmentViewDelegate?
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var attachment: Attachment!
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var task: URLSessionDataTask?
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required init?(coder aDecoder: NSCoder) {
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super.init(coder: aDecoder)
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commonInit()
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}
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override init(frame: CGRect) {
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super.init(frame: frame)
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commonInit()
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}
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convenience init(frame: CGRect, attachment: Attachment) {
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self.init(frame: frame)
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self.attachment = attachment
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loadImage()
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}
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func commonInit() {
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contentMode = .scaleAspectFill
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layer.masksToBounds = true
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isUserInteractionEnabled = true
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addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(imagePressed)))
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}
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func loadImage() {
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guard let url = URL(string: attachment.url) else { fatalError("Invalid URL: \(attachment.url)") }
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task = URLSession.shared.dataTask(with: url) { data, response, error in
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guard error == nil, let data = data, let image = UIImage(data: data) else { return }
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DispatchQueue.main.async {
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self.image = image
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}
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}
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task!.resume()
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}
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@objc func imagePressed() {
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if image != nil {
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delegate?.showLargeAttachment(for: self)
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}
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}
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}
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