Refactor lifecycle vars

ios/CameraView.swift

@@ -6,8 +6,6 @@
 //  Copyright © 2020 Facebook. All rights reserved.
 //
 
-// swiftlint:disable file_length
-
 import AVFoundation
 import Foundation
 import UIKit
@@ -39,6 +37,7 @@ private let propsThatRequireDeviceReconfiguration = ["fps",
 final class CameraView: UIView {
   // MARK: Lifecycle
 
+  // pragma MARK: Setup
   override init(frame: CGRect) {
     super.init(frame: frame)
     videoPreviewLayer.session = captureSession
@@ -69,6 +68,83 @@ final class CameraView: UIView {
     fatalError("init(coder:) is not implemented.")
   }
 
+  // MARK: Internal
+
+  override class var layerClass: AnyClass {
+    return AVCaptureVideoPreviewLayer.self
+  }
+
+  // pragma MARK: Exported Properties
+  // props that require reconfiguring
+  @objc var cameraId: NSString?
+  @objc var enableDepthData = false
+  @objc var enableHighResolutionCapture: NSNumber? // nullable bool
+  @objc var enablePortraitEffectsMatteDelivery = false
+  @objc var preset: String?
+  @objc var scannableCodes: [String]?
+  // props that require format reconfiguring
+  @objc var format: NSDictionary?
+  @objc var fps: NSNumber?
+  @objc var hdr: NSNumber? // nullable bool
+  @objc var lowLightBoost: NSNumber? // nullable bool
+  @objc var colorSpace: NSString?
+  // other props
+  @objc var isActive = false
+  @objc var torch = "off"
+  @objc var zoom: NSNumber = 0.0 // in percent
+  // events
+  @objc var onInitialized: RCTDirectEventBlock?
+  @objc var onError: RCTDirectEventBlock?
+  @objc var onCodeScanned: RCTBubblingEventBlock?
+
+  // pragma MARK: Private Properties
+  internal var isReady = false
+  /// The serial execution queue for the camera preview layer (input stream) as well as output processing (take photo, record video, process metadata/barcodes)
+  internal let queue = DispatchQueue(label: "com.mrousavy.camera-queue", qos: .userInteractive, attributes: [], autoreleaseFrequency: .inherit, target: nil)
+  // Capture Session
+  internal let captureSession = AVCaptureSession()
+  // Inputs
+  internal var videoDeviceInput: AVCaptureDeviceInput?
+  internal var audioDeviceInput: AVCaptureDeviceInput?
+  // Outputs
+  internal var photoOutput: AVCapturePhotoOutput?
+  internal var movieOutput: AVCaptureMovieFileOutput?
+  internal var metadataOutput: AVCaptureMetadataOutput?
+  // CameraView+TakePhoto
+  internal var photoCaptureDelegates: [PhotoCaptureDelegate] = []
+  // CameraView+RecordVideo
+  internal var recordingDelegateResolver: RCTPromiseResolveBlock?
+  internal var recordingDelegateRejecter: RCTPromiseRejectBlock?
+  // CameraView+Zoom
+  internal var pinchGestureRecognizer: UIPinchGestureRecognizer?
+  internal var pinchScaleOffset: CGFloat = 1.0
+
+  @objc var enableZoomGesture = false {
+    didSet {
+      if enableZoomGesture {
+        addPinchGestureRecognizer()
+      } else {
+        removePinchGestureRecognizer()
+      }
+    }
+  }
+
+  var isRunning: Bool {
+    return captureSession.isRunning
+  }
+
+  /// Convenience wrapper to get layer as its statically known type.
+  var videoPreviewLayer: AVCaptureVideoPreviewLayer {
+    // swiftlint:disable force_cast
+    return layer as! AVCaptureVideoPreviewLayer
+  }
+
+  override func removeFromSuperview() {
+    ReactLogger.log(level: .info, message: "Removing Camera View...")
+    captureSession.stopRunning()
+    super.removeFromSuperview()
+  }
+
   // pragma MARK: Props updating
   override final func didSetProps(_ changedProps: [String]!) {
     ReactLogger.log(level: .info, message: "Updating \(changedProps.count) prop(s)...")
@@ -124,81 +200,6 @@ final class CameraView: UIView {
     }
   }
 
-  override func removeFromSuperview() {
-    ReactLogger.log(level: .info, message: "Removing Camera View...")
-    captureSession.stopRunning()
-    super.removeFromSuperview()
-  }
-
-  // MARK: Internal
-
-  // pragma MARK: Setup
-  override class var layerClass: AnyClass {
-    return AVCaptureVideoPreviewLayer.self
-  }
-  
-  internal let captureSession = AVCaptureSession()
-
-  // pragma MARK: Exported Properties
-  // props that require reconfiguring
-  @objc var cameraId: NSString?
-  @objc var enableDepthData = false
-  @objc var enableHighResolutionCapture: NSNumber? // nullable bool
-  @objc var enablePortraitEffectsMatteDelivery = false
-  @objc var preset: String?
-  @objc var scannableCodes: [String]?
-  // props that require format reconfiguring
-  @objc var format: NSDictionary?
-  @objc var fps: NSNumber?
-  @objc var hdr: NSNumber? // nullable bool
-  @objc var lowLightBoost: NSNumber? // nullable bool
-  @objc var colorSpace: NSString?
-  // other props
-  @objc var isActive = false
-  @objc var torch = "off"
-  @objc var zoom: NSNumber = 0.0 // in percent
-  // events
-  @objc var onInitialized: RCTDirectEventBlock?
-  @objc var onError: RCTDirectEventBlock?
-  @objc var onCodeScanned: RCTBubblingEventBlock?
-  var isReady = false
-  // pragma MARK: Private Properties
-  /// The serial execution queue for the camera preview layer (input stream) as well as output processing (take photo, record video, process metadata/barcodes)
-  internal let queue = DispatchQueue(label: "com.mrousavy.camera-queue", qos: .userInteractive, attributes: [], autoreleaseFrequency: .inherit, target: nil)
-  internal var videoDeviceInput: AVCaptureDeviceInput?
-  internal var audioDeviceInput: AVCaptureDeviceInput?
-  internal var photoOutput: AVCapturePhotoOutput?
-  internal var movieOutput: AVCaptureMovieFileOutput?
-  internal var metadataOutput: AVCaptureMetadataOutput?
-  // CameraView+TakePhoto
-  internal var photoCaptureDelegates: [PhotoCaptureDelegate] = []
-  // CameraView+RecordVideo
-  internal var recordingDelegateResolver: RCTPromiseResolveBlock?
-  internal var recordingDelegateRejecter: RCTPromiseRejectBlock?
-  // CameraView+Zoom
-  internal var pinchGestureRecognizer: UIPinchGestureRecognizer?
-  internal var pinchScaleOffset: CGFloat = 1.0
-
-  @objc var enableZoomGesture = false {
-    didSet {
-      if enableZoomGesture {
-        addPinchGestureRecognizer()
-      } else {
-        removePinchGestureRecognizer()
-      }
-    }
-  }
-
-  var isRunning: Bool {
-    return captureSession.isRunning
-  }
-
-  /// Convenience wrapper to get layer as its statically known type.
-  var videoPreviewLayer: AVCaptureVideoPreviewLayer {
-    // swiftlint:disable force_cast
-    return layer as! AVCaptureVideoPreviewLayer
-  }
-
   internal final func setTorchMode(_ torchMode: String) {
     guard let device = videoDeviceInput?.device else {
       return invokeOnError(.session(.cameraNotReady))
@@ -260,5 +261,4 @@ final class CameraView: UIView {
     guard let onInitialized = self.onInitialized else { return }
     onInitialized([String: Any]())
   }
-
 }