84 lines
3.1 KiB
Swift
84 lines
3.1 KiB
Swift
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//
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// QRScannerController.swift
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// pass
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//
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// Created by Yishi Lin on 10/4/17.
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// Copyright © 2017 Yishi Lin. All rights reserved.
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//
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import UIKit
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import AVFoundation
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class OTPScannerController: QRScannerController {
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var tempPassword: Password?
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var scannedOTP: String?
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// MARK: - AVCaptureMetadataOutputObjectsDelegate Methods
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override func captureOutput(_ captureOutput: AVCaptureOutput!, didOutputMetadataObjects metadataObjects: [Any]!, from connection: AVCaptureConnection!) {
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if let metadataObj = metadataObjects.first as? AVMetadataMachineReadableCodeObject,
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supportedCodeTypes.contains(metadataObj.type),
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let barCodeObject = videoPreviewLayer?.transformedMetadataObject(for: metadataObj) {
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// draw a bounds on the found QR code
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qrCodeFrameView?.frame = barCodeObject.bounds
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// check whether it is a valid result
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if let scannedString = metadataObj.stringValue {
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if let (accept, message) = delegate?.checkScannedOutput(line: scannedString) {
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if accept == true {
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captureSession?.stopRunning()
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scannedOTP = scannedString
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tempPassword = Password(name: "empty", plainText: scannedString)
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// set scannerOutput
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setupOneTimePasswordMessage()
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} else {
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scannerOutput.text = message
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}
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} else {
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// no delegate, show the scanned result
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scannerOutput.text = scannedString
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}
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} else {
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scannerOutput.text = "No string value"
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}
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} else {
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qrCodeFrameView?.frame = CGRect.zero
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scannerOutput.text = "No QR code detected"
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}
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}
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private func setupOneTimePasswordMessage() {
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if let password = tempPassword {
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if password.otpType == .hotp {
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// hotp, no need to refresh
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let (title, content) = password.getOtpStrings()!
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scannerOutput.text = "\(title):\(content)"
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} else if password.otpType == .totp {
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// totp, refresh
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Timer.scheduledTimer(withTimeInterval: 1, repeats: true) {
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[weak weakSelf = self] timer in
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let (title, content) = password.getOtpStrings()!
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weakSelf?.scannerOutput.text = "\(title):\(content)"
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}
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}
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}
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}
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override func shouldPerformSegue(withIdentifier identifier: String, sender: Any?) -> Bool {
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if identifier == "saveAddScannedOTPSegue" {
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return tempPassword != nil
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}
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return true
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}
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// override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
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// super.prepare(for: segue, sender: sender)
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// if segue.identifier == "saveAddScannedOTPSegue" {
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// delegate?.handleScannedOutput(line: scannedOTP)
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// }
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// }
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}
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