Kurdtvs-Live-Kurdish-TV-Kur.../Mastodon/Scene/MediaPreview/Video/MediaPreviewVideoViewContro...

156 lines
5.7 KiB
Swift

//
// MediaPreviewVideoViewController.swift
// Mastodon
//
// Created by MainasuK on 2022-2-9.
//
import os.log
import UIKit
import AVKit
import Combine
import func AVFoundation.AVMakeRect
final class MediaPreviewVideoViewController: UIViewController {
let logger = Logger(subsystem: "MediaPreviewVideoViewController", category: "ViewController")
var disposeBag = Set<AnyCancellable>()
var viewModel: MediaPreviewVideoViewModel!
let playerViewController = AVPlayerViewController()
let previewImageView = UIImageView()
deinit {
os_log("%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
playerViewController.player?.pause()
try? AVAudioSession.sharedInstance().setCategory(.ambient)
try? AVAudioSession.sharedInstance().setActive(false, options: .notifyOthersOnDeactivation)
}
}
extension MediaPreviewVideoViewController {
override func viewDidLoad() {
super.viewDidLoad()
addChild(playerViewController)
playerViewController.view.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(playerViewController.view)
NSLayoutConstraint.activate([
playerViewController.view.centerXAnchor.constraint(equalTo: view.centerXAnchor),
playerViewController.view.centerYAnchor.constraint(equalTo: view.centerYAnchor),
playerViewController.view.widthAnchor.constraint(equalTo: view.widthAnchor),
playerViewController.view.heightAnchor.constraint(equalTo: view.heightAnchor),
])
playerViewController.didMove(toParent: self)
if let contentOverlayView = playerViewController.contentOverlayView {
previewImageView.translatesAutoresizingMaskIntoConstraints = false
contentOverlayView.addSubview(previewImageView)
NSLayoutConstraint.activate([
previewImageView.topAnchor.constraint(equalTo: contentOverlayView.topAnchor),
previewImageView.leadingAnchor.constraint(equalTo: contentOverlayView.leadingAnchor),
previewImageView.trailingAnchor.constraint(equalTo: contentOverlayView.trailingAnchor),
previewImageView.bottomAnchor.constraint(equalTo: contentOverlayView.bottomAnchor),
])
}
playerViewController.delegate = self
playerViewController.view.backgroundColor = .clear
playerViewController.player = viewModel.player
playerViewController.allowsPictureInPicturePlayback = true
switch viewModel.item {
case .video:
break
case .gif:
playerViewController.showsPlaybackControls = false
}
viewModel.player?.play()
viewModel.playbackState = .playing
if let previewURL = viewModel.item.previewURL {
previewImageView.contentMode = .scaleAspectFit
previewImageView.af.setImage(
withURL: previewURL,
placeholderImage: .placeholder(color: .systemFill)
)
playerViewController.publisher(for: \.isReadyForDisplay)
.receive(on: DispatchQueue.main)
.sink { [weak self] isReadyForDisplay in
guard let self = self else { return }
self.previewImageView.isHidden = isReadyForDisplay
}
.store(in: &disposeBag)
}
}
}
// MARK: - ShareActivityProvider
//extension MediaPreviewVideoViewController: ShareActivityProvider {
// var activities: [Any] {
// return []
// }
//
// var applicationActivities: [UIActivity] {
// switch viewModel.item {
// case .gif(let mediaContext):
// guard let url = mediaContext.assetURL else { return [] }
// return [
// SavePhotoActivity(context: viewModel.context, url: url, resourceType: .video)
// ]
// default:
// return []
// }
// }
//}
// MARK: - AVPlayerViewControllerDelegate
extension MediaPreviewVideoViewController: AVPlayerViewControllerDelegate {
}
// MARK: - MediaPreviewTransitionViewController
extension MediaPreviewVideoViewController: MediaPreviewTransitionViewController {
var mediaPreviewTransitionContext: MediaPreviewTransitionContext? {
guard let playerView = playerViewController.view else { return nil }
let _currentFrame: UIImage? = {
guard let player = playerViewController.player else { return nil }
guard let asset = player.currentItem?.asset else { return nil }
let assetImageGenerator = AVAssetImageGenerator(asset: asset)
assetImageGenerator.appliesPreferredTrackTransform = true // fix orientation
do {
let cgImage = try assetImageGenerator.copyCGImage(at: player.currentTime(), actualTime: nil)
let image = UIImage(cgImage: cgImage)
return image
} catch {
return previewImageView.image
}
}()
let _snapshot: UIView? = {
guard let currentFrame = _currentFrame else { return nil }
let size = AVMakeRect(aspectRatio: currentFrame.size, insideRect: view.frame).size
let imageView = UIImageView(frame: CGRect(origin: .zero, size: size))
imageView.image = currentFrame
return imageView
}()
guard let snapshot = _snapshot else {
return nil
}
return MediaPreviewTransitionContext(
transitionView: playerView,
snapshot: snapshot,
snapshotTransitioning: snapshot
)
}
}