133 lines
3.9 KiB
Swift
133 lines
3.9 KiB
Swift
//
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// VideoGalleryContentViewController.swift
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// Tusker
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//
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// Created by Shadowfacts on 3/19/24.
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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 AVFoundation
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class VideoGalleryContentViewController: UIViewController, GalleryContentViewController {
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private let url: URL
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let caption: String?
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private let item: AVPlayerItem
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private let player: AVPlayer
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private var presentationSizeObservation: NSKeyValueObservation?
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private var statusObservation: NSKeyValueObservation?
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private var isFirstAppearance = true
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init(url: URL, caption: String?) {
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self.url = url
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self.caption = caption
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let asset = AVAsset(url: url)
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self.item = AVPlayerItem(asset: asset)
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self.player = AVPlayer(playerItem: item)
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super.init(nibName: nil, bundle: nil)
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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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container?.setGalleryContentLoading(true)
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let playerView = PlayerView(item: item, player: player)
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playerView.translatesAutoresizingMaskIntoConstraints = false
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view.addSubview(playerView)
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NSLayoutConstraint.activate([
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playerView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
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playerView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
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playerView.topAnchor.constraint(equalTo: view.topAnchor),
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playerView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
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])
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presentationSizeObservation = item.observe(\.presentationSize, changeHandler: { [unowned self] _, _ in
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MainActor.runUnsafely {
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self.container?.galleryContentChanged()
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}
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})
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statusObservation = item.observe(\.status, changeHandler: { [unowned self] item, _ in
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MainActor.runUnsafely {
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if item.status == .readyToPlay {
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self.container?.setGalleryContentLoading(false)
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statusObservation = nil
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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 isFirstAppearance {
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isFirstAppearance = false
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player.play()
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}
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}
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override func viewWillDisappear(_ animated: Bool) {
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super.viewWillDisappear(animated)
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player.pause()
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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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item.presentationSize
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}
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var activityItemsForSharing: [Any] {
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// TODO: share videos
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[]
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}
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}
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private class PlayerView: UIView {
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override class var layerClass: AnyClass {
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AVPlayerLayer.self
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}
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private var playerLayer: AVPlayerLayer {
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layer as! AVPlayerLayer
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}
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private let player: AVPlayer
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private var presentationSizeObservation: NSKeyValueObservation?
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override var intrinsicContentSize: CGSize {
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player.currentItem?.presentationSize ?? CGSize(width: UIView.noIntrinsicMetric, height: UIView.noIntrinsicMetric)
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}
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init(item: AVPlayerItem, player: AVPlayer) {
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self.player = player
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super.init(frame: .zero)
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playerLayer.player = player
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playerLayer.videoGravity = .resizeAspect
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presentationSizeObservation = item.observe(\.presentationSize, changeHandler: { [unowned self] _, _ in
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MainActor.runUnsafely {
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self.invalidateIntrinsicContentSize()
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}
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})
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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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}
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