153 lines
4.5 KiB
Swift
153 lines
4.5 KiB
Swift
// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
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import UIKit
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import SessionUIKit
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public protocol VideoPreviewDelegate: AnyObject {
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func cameraDidConfirmTurningOn()
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}
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class VideoPreviewVC: UIViewController, CameraManagerDelegate {
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weak var delegate: VideoPreviewDelegate?
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lazy var cameraManager: CameraManager = {
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let result = CameraManager()
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result.delegate = self
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return result
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}()
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// MARK: - UI Components
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private lazy var renderView: RenderView = {
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let result = RenderView()
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return result
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}()
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private lazy var fadeView: GradientView = {
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let height: CGFloat = ((UIApplication.shared.keyWindow?.safeAreaInsets.top)
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.map { $0 + Values.veryLargeSpacing })
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.defaulting(to: 64)
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let result: GradientView = GradientView()
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result.themeBackgroundGradient = [
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.value(.backgroundPrimary, alpha: 0.4),
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.value(.backgroundPrimary, alpha: 0)
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]
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result.set(.height, to: height)
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return result
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}()
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private lazy var closeButton: UIButton = {
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let result = UIButton(type: .custom)
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result.setImage(
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UIImage(named: "X")?
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.withRenderingMode(.alwaysTemplate),
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for: .normal
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)
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result.themeTintColor = .textPrimary
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result.addTarget(self, action: #selector(cancel), for: UIControl.Event.touchUpInside)
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result.set(.width, to: 60)
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result.set(.height, to: 60)
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return result
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}()
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private lazy var confirmButton: UIButton = {
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let result = UIButton(type: .custom)
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result.setImage(
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UIImage(named: "Check")?
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.withRenderingMode(.alwaysTemplate),
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for: .normal
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)
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result.themeTintColor = .textPrimary
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result.addTarget(self, action: #selector(confirm), for: UIControl.Event.touchUpInside)
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result.set(.width, to: 60)
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result.set(.height, to: 60)
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return result
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}()
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private lazy var titleLabel: UILabel = {
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let result = UILabel()
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result.font = .boldSystemFont(ofSize: Values.veryLargeFontSize)
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result.text = "Preview"
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result.themeTextColor = .textPrimary
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result.textAlignment = .center
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return result
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}()
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// MARK: - Lifecycle
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override func viewDidLoad() {
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super.viewDidLoad()
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view.themeBackgroundColor = .backgroundPrimary
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setUpViewHierarchy()
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cameraManager.prepare()
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}
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func setUpViewHierarchy() {
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// Preview video view
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view.addSubview(renderView)
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renderView.translatesAutoresizingMaskIntoConstraints = false
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renderView.pin(to: view)
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// Fade view
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view.addSubview(fadeView)
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fadeView.translatesAutoresizingMaskIntoConstraints = false
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fadeView.pin([ UIView.HorizontalEdge.left, UIView.VerticalEdge.top, UIView.HorizontalEdge.right ], to: view)
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// Close button
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view.addSubview(closeButton)
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closeButton.translatesAutoresizingMaskIntoConstraints = false
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closeButton.pin(.left, to: .left, of: view)
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closeButton.center(.vertical, in: fadeView)
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// Confirm button
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view.addSubview(confirmButton)
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confirmButton.translatesAutoresizingMaskIntoConstraints = false
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confirmButton.pin(.right, to: .right, of: view)
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confirmButton.center(.vertical, in: fadeView)
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// Title label
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view.addSubview(titleLabel)
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titleLabel.translatesAutoresizingMaskIntoConstraints = false
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titleLabel.center(.vertical, in: closeButton)
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titleLabel.center(.horizontal, in: view)
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}
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override func viewDidAppear(_ animated: Bool) {
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super.viewDidAppear(animated)
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cameraManager.start()
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}
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override func viewWillDisappear(_ animated: Bool) {
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super.viewWillDisappear(animated)
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cameraManager.stop()
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}
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// MARK: - Interaction
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@objc func confirm() {
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delegate?.cameraDidConfirmTurningOn()
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self.dismiss(animated: true, completion: nil)
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}
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@objc func cancel() {
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self.dismiss(animated: true, completion: nil)
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}
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// MARK: - CameraManagerDelegate
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func handleVideoOutputCaptured(sampleBuffer: CMSampleBuffer) {
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renderView.enqueue(sampleBuffer: sampleBuffer)
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}
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}
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