152 lines
5.1 KiB
Swift
152 lines
5.1 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)
|
|
playerViewController.view.pinToParent()
|
|
playerViewController.didMove(toParent: self)
|
|
|
|
if let contentOverlayView = playerViewController.contentOverlayView {
|
|
previewImageView.translatesAutoresizingMaskIntoConstraints = false
|
|
contentOverlayView.addSubview(previewImageView)
|
|
previewImageView.pinToParent()
|
|
}
|
|
|
|
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)
|
|
}
|
|
}
|
|
|
|
override func viewDidLayoutSubviews() {
|
|
super.viewDidLayoutSubviews()
|
|
|
|
playerViewController.didMove(toParent: self)
|
|
}
|
|
|
|
}
|
|
|
|
// 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
|
|
)
|
|
}
|
|
}
|
|
|