118 lines
4.0 KiB
Swift
118 lines
4.0 KiB
Swift
//
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// ImageGalleryContentViewController.swift
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// Tusker
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//
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// Created by Shadowfacts on 3/17/24.
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// Copyright © 2024 Shadowfacts. All rights reserved.
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//
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import UIKit
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import GalleryVC
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import Pachyderm
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import TuskerComponents
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@preconcurrency import VisionKit
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class ImageGalleryContentViewController: UIViewController, GalleryContentViewController {
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let url: URL
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let caption: String?
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let originalData: Data?
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let image: UIImage
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let gifController: GIFController?
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@available(iOS 16.0, macCatalyst 17.0, *)
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private static let analyzer = ImageAnalyzer()
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private var _analysisInteraction: AnyObject?
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@available(iOS 16.0, macCatalyst 17.0, *)
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private var analysisInteraction: ImageAnalysisInteraction? { _analysisInteraction as? ImageAnalysisInteraction }
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init(url: URL, caption: String?, originalData: Data?, image: UIImage, gifController: GIFController?) {
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self.url = url
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self.caption = caption
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self.originalData = originalData
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self.image = image
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self.gifController = gifController
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super.init(nibName: nil, bundle: nil)
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preferredContentSize = image.size
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}
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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let imageView = GIFImageView(image: image)
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imageView.translatesAutoresizingMaskIntoConstraints = false
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imageView.contentMode = .scaleAspectFit
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imageView.isUserInteractionEnabled = true
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view.addSubview(imageView)
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NSLayoutConstraint.activate([
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imageView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
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imageView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
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imageView.topAnchor.constraint(equalTo: view.topAnchor),
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imageView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
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])
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if let gifController {
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gifController.attach(to: imageView)
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}
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if gifController == nil,
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#available(iOS 16.0, macCatalyst 17.0, *) {
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let interaction = ImageAnalysisInteraction(self)
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self._analysisInteraction = interaction
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interaction.preferredInteractionTypes = .automatic
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imageView.addInteraction(interaction)
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Task {
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do {
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let result = try await ImageGalleryContentViewController.analyzer.analyze(image, configuration: ImageAnalyzer.Configuration([.text, .machineReadableCode]))
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interaction.analysis = result
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} catch {
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// if analysis fails, we just don't show anything
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}
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}
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}
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}
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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if let gifController {
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gifController.startAnimating()
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}
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}
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// MARK: GalleryContentViewController
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var container: (any GalleryVC.GalleryContentViewControllerContainer)?
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var contentSize: CGSize {
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image.size
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}
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var activityItemsForSharing: [Any] {
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if let data = originalData ?? image.pngData() {
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return [ImageActivityItemSource(data: data, url: url, image: image)]
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} else {
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return []
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}
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}
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func setControlsVisible(_ visible: Bool, animated: Bool) {
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if #available(iOS 16.0, macCatalyst 17.0, *),
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let analysisInteraction {
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analysisInteraction.setSupplementaryInterfaceHidden(!visible, animated: animated)
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}
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}
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}
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@available(iOS 16.0, macCatalyst 17.0, *)
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extension ImageGalleryContentViewController: ImageAnalysisInteractionDelegate {
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func interaction(_ interaction: ImageAnalysisInteraction, shouldBeginAt point: CGPoint, for interactionType: ImageAnalysisInteraction.InteractionTypes) -> Bool {
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return container?.galleryControlsVisible ?? true
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}
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}
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