session-ios/Session/Shared/ScanQRCodeWrapperVC.swift

81 lines
2.9 KiB
Swift

final class ScanQRCodeWrapperVC : BaseVC {
var delegate: (UIViewController & OWSQRScannerDelegate)? = nil
var isPresentedModally = false
private let message: String
private let scanQRCodeVC = OWSQRCodeScanningViewController()
// MARK: Settings
override var supportedInterfaceOrientations: UIInterfaceOrientationMask { return .portrait }
// MARK: Lifecycle
init(message: String) {
self.message = message
super.init(nibName: nil, bundle: nil)
}
required init?(coder: NSCoder) {
preconditionFailure("Use init(message:) instead.")
}
override init(nibName: String?, bundle: Bundle?) {
preconditionFailure("Use init(message:) instead.")
}
override func viewDidLoad() {
super.viewDidLoad()
// Set up navigation bar if needed
if isPresentedModally {
navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: .stop, target: self, action: #selector(close))
}
setUpGradientBackground()
// Set up scan QR code VC
scanQRCodeVC.scanDelegate = delegate
let scanQRCodeVCView = scanQRCodeVC.view!
view.addSubview(scanQRCodeVCView)
scanQRCodeVCView.pin(.leading, to: .leading, of: view)
scanQRCodeVCView.pin(.trailing, to: .trailing, of: view)
scanQRCodeVCView.autoPinEdge(.top, to: .top, of: view)
scanQRCodeVCView.autoPinToSquareAspectRatio()
// Set up bottom view
let bottomView = UIView()
view.addSubview(bottomView)
bottomView.pin(.top, to: .bottom, of: scanQRCodeVCView)
bottomView.pin(.leading, to: .leading, of: view)
bottomView.pin(.trailing, to: .trailing, of: view)
bottomView.pin(.bottom, to: .bottom, of: view)
// Set up explanation label
let explanationLabel = UILabel()
explanationLabel.text = message
explanationLabel.textColor = Colors.text
explanationLabel.font = .systemFont(ofSize: Values.smallFontSize)
explanationLabel.numberOfLines = 0
explanationLabel.lineBreakMode = .byWordWrapping
explanationLabel.textAlignment = .center
bottomView.addSubview(explanationLabel)
explanationLabel.autoPinWidthToSuperview(withMargin: 32)
explanationLabel.autoPinHeightToSuperview(withMargin: 32)
// Title
title = "Scan QR Code"
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
UIDevice.current.ows_setOrientation(.portrait)
DispatchQueue.main.async { [weak self] in
self?.scanQRCodeVC.startCapture()
}
}
// MARK: Interaction
@objc private func close() {
presentingViewController?.dismiss(animated: true, completion: nil)
}
public func startCapture() {
DispatchQueue.main.async { [weak self] in
self?.scanQRCodeVC.startCapture()
}
}
}