Refactor: access control

BarcodeScanner.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
   s.name             = "BarcodeScanner"
   s.summary          = "Simple and beautiful barcode scanner."
-  s.version          = "3.0.0"
+  s.version          = "3.0.1"
   s.homepage         = "https://github.com/hyperoslo/BarcodeScanner"
   s.license          = 'MIT'
   s.author           = { "Hyper Interaktiv AS" => "ios@hyper.no" }

BarcodeScanner.xcodeproj/project.pbxproj

@@ -8,6 +8,7 @@
 
 /* Begin PBXBuildFile section */
 		2DBF9E0E1F169DEF006B5AA8 /* FocusViewType.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2DBF9E0D1F169DEF006B5AA8 /* FocusViewType.swift */; };
+		D504555F1FD8714700E46826 /* UIView+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = D504555E1FD8714700E46826 /* UIView+Extensions.swift */; };
 		D50BE3E91C9FE7A80000A34C /* flashOff@3x.png in Resources */ = {isa = PBXBuildFile; fileRef = D50BE3E51C9FE7A80000A34C /* flashOff@3x.png */; };
 		D50BE3EA1C9FE7A80000A34C /* flashOn@3x.png in Resources */ = {isa = PBXBuildFile; fileRef = D50BE3E61C9FE7A80000A34C /* flashOn@3x.png */; };
 		D50BE3EB1C9FE7A80000A34C /* info@3x.png in Resources */ = {isa = PBXBuildFile; fileRef = D50BE3E71C9FE7A80000A34C /* info@3x.png */; };
@@ -20,18 +21,19 @@
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
-		2DBF9E0D1F169DEF006B5AA8 /* FocusViewType.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = FocusViewType.swift; sourceTree = "<group>"; };
+		2DBF9E0D1F169DEF006B5AA8 /* FocusViewType.swift */ = {isa = PBXFileReference; fileEncoding = 4; indentWidth = 2; lastKnownFileType = sourcecode.swift; path = FocusViewType.swift; sourceTree = "<group>"; tabWidth = 2; };
+		D504555E1FD8714700E46826 /* UIView+Extensions.swift */ = {isa = PBXFileReference; indentWidth = 2; lastKnownFileType = sourcecode.swift; path = "UIView+Extensions.swift"; sourceTree = "<group>"; tabWidth = 2; };
 		D50BE3E51C9FE7A80000A34C /* flashOff@3x.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = "flashOff@3x.png"; sourceTree = "<group>"; };
 		D50BE3E61C9FE7A80000A34C /* flashOn@3x.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = "flashOn@3x.png"; sourceTree = "<group>"; };
 		D50BE3E71C9FE7A80000A34C /* info@3x.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = "info@3x.png"; sourceTree = "<group>"; };
 		D5B2E89F1C3A780C00C0327D /* BarcodeScanner.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = BarcodeScanner.framework; sourceTree = BUILT_PRODUCTS_DIR; };
-		D5C4E08C1CA0BFB9008D9269 /* InfoView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = InfoView.swift; sourceTree = "<group>"; };
-		D5C4E08D1CA0BFB9008D9269 /* TorchMode.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TorchMode.swift; sourceTree = "<group>"; };
+		D5C4E08C1CA0BFB9008D9269 /* InfoView.swift */ = {isa = PBXFileReference; fileEncoding = 4; indentWidth = 2; lastKnownFileType = sourcecode.swift; path = InfoView.swift; sourceTree = "<group>"; tabWidth = 2; };
+		D5C4E08D1CA0BFB9008D9269 /* TorchMode.swift */ = {isa = PBXFileReference; fileEncoding = 4; indentWidth = 2; lastKnownFileType = sourcecode.swift; path = TorchMode.swift; sourceTree = "<group>"; tabWidth = 2; };
 		D5C6298B1C3A8BBD007F7B7C /* Info-iOS.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "Info-iOS.plist"; sourceTree = "<group>"; };
-		D5F1C1C51C9C5113001E17A6 /* Config.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Config.swift; sourceTree = "<group>"; };
-		D5F1C1C61C9C5113001E17A6 /* BarcodeScannerController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = BarcodeScannerController.swift; sourceTree = "<group>"; };
-		D5F1C1D21C9C5809001E17A6 /* HeaderView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = HeaderView.swift; sourceTree = "<group>"; };
-		D5FC8AD61D252A12004BED88 /* State.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = State.swift; sourceTree = "<group>"; };
+		D5F1C1C51C9C5113001E17A6 /* Config.swift */ = {isa = PBXFileReference; fileEncoding = 4; indentWidth = 2; lastKnownFileType = sourcecode.swift; path = Config.swift; sourceTree = "<group>"; tabWidth = 2; };
+		D5F1C1C61C9C5113001E17A6 /* BarcodeScannerController.swift */ = {isa = PBXFileReference; fileEncoding = 4; indentWidth = 2; lastKnownFileType = sourcecode.swift; path = BarcodeScannerController.swift; sourceTree = "<group>"; tabWidth = 2; };
+		D5F1C1D21C9C5809001E17A6 /* HeaderView.swift */ = {isa = PBXFileReference; fileEncoding = 4; indentWidth = 2; lastKnownFileType = sourcecode.swift; path = HeaderView.swift; sourceTree = "<group>"; tabWidth = 2; };
+		D5FC8AD61D252A12004BED88 /* State.swift */ = {isa = PBXFileReference; fileEncoding = 4; indentWidth = 2; lastKnownFileType = sourcecode.swift; path = State.swift; sourceTree = "<group>"; tabWidth = 2; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -91,6 +93,7 @@
 				D5F1C1C51C9C5113001E17A6 /* Config.swift */,
 				D5F1C1C61C9C5113001E17A6 /* BarcodeScannerController.swift */,
 				D5F1C1D21C9C5809001E17A6 /* HeaderView.swift */,
+				D504555E1FD8714700E46826 /* UIView+Extensions.swift */,
 			);
 			path = Sources;
 			sourceTree = "<group>";
@@ -182,6 +185,7 @@
 				D5F1C1C91C9C5113001E17A6 /* Config.swift in Sources */,
 				D5F1C1CA1C9C5113001E17A6 /* BarcodeScannerController.swift in Sources */,
 				2DBF9E0E1F169DEF006B5AA8 /* FocusViewType.swift in Sources */,
+				D504555F1FD8714700E46826 /* UIView+Extensions.swift in Sources */,
 				D5FC8AD71D252A12004BED88 /* State.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

Example/BarcodeScannerExample/Podfile.lock

@@ -1,5 +1,5 @@
 PODS:
-  - BarcodeScanner (2.1.2)
+  - BarcodeScanner (3.0.1)
 
 DEPENDENCIES:
   - BarcodeScanner (from `../../`)
@@ -9,7 +9,7 @@ EXTERNAL SOURCES:
     :path: ../../
 
 SPEC CHECKSUMS:
-  BarcodeScanner: e519f9497d196f228b5c1dd96af0468c666a2880
+  BarcodeScanner: f884e5a1e0e8e6c95eb7d0c4b00d69b72fd2be83
 
 PODFILE CHECKSUM: eae1a5fa9feaba2427db94d37a48c50c283939b8
 

Sources/BarcodeScannerController.swift

@@ -28,18 +28,17 @@ public protocol BarcodeScannerDismissalDelegate: class {
  - Not found error message
  */
 open class BarcodeScannerController: UIViewController {
-
   /// Video capture device. This may be nil when running in Simulator.
-  lazy var captureDevice: AVCaptureDevice! = AVCaptureDevice.default(for: AVMediaType.video)
+  private lazy var captureDevice: AVCaptureDevice! = AVCaptureDevice.default(for: AVMediaType.video)
 
   /// Capture session.
-  lazy var captureSession: AVCaptureSession = AVCaptureSession()
+  private lazy var captureSession: AVCaptureSession = AVCaptureSession()
 
   /// Header view with title and close button.
-  lazy var headerView: HeaderView = HeaderView()
+  private lazy var headerView: HeaderView = HeaderView()
 
   /// Information view with description label.
-  lazy var infoView: InfoView = InfoView()
+  private lazy var infoView: InfoView = InfoView()
 
   /// Button to change torch mode.
   public lazy var flashButton: UIButton = { [unowned self] in
@@ -49,7 +48,7 @@ open class BarcodeScannerController: UIViewController {
     }()
 
   /// Animated focus view.
-  lazy var focusView: UIView = {
+  private lazy var focusView: UIView = {
     let view = UIView()
     view.layer.borderColor = UIColor.white.cgColor
     view.layer.borderWidth = 2
@@ -64,7 +63,7 @@ open class BarcodeScannerController: UIViewController {
   }()
 
   /// Button that opens settings to allow camera usage.
-  lazy var settingsButton: UIButton = { [unowned self] in
+  private lazy var settingsButton: UIButton = { [unowned self] in
     let button = UIButton(type: .system)
     let title = NSAttributedString(string: SettingsButton.text,
       attributes: [
@@ -80,10 +79,10 @@ open class BarcodeScannerController: UIViewController {
     }()
 
   /// Video preview layer.
-  var videoPreviewLayer: AVCaptureVideoPreviewLayer?
+  private var videoPreviewLayer: AVCaptureVideoPreviewLayer?
 
   /// The current controller's status mode.
-  var status: Status = Status(state: .scanning) {
+  private var status: Status = Status(state: .scanning) {
     didSet {
       let duration = status.animated &&
         (status.state == .processing
@@ -128,7 +127,7 @@ open class BarcodeScannerController: UIViewController {
   public var barCodeFocusViewType: FocusViewType = .animated
 
   /// The current torch mode on the capture device.
-  var torchMode: TorchMode = .off {
+  private var torchMode: TorchMode = .off {
     didSet {
       guard let captureDevice = captureDevice, captureDevice.hasFlash else { return }
 
@@ -143,7 +142,7 @@ open class BarcodeScannerController: UIViewController {
   }
 
   /// Calculated frame for the info view.
-  var infoFrame: CGRect {
+  private var infoFrame: CGRect {
     let height = status.state != .processing ? 75 : view.bounds.height
     return CGRect(x: 0, y: view.bounds.height - height,
       width: view.bounds.width, height: height)
@@ -163,7 +162,7 @@ open class BarcodeScannerController: UIViewController {
   public weak var dismissalDelegate: BarcodeScannerDismissalDelegate?
 
   /// Flag to lock session from capturing.
-  var locked = false
+  private var locked = false
 
   // MARK: - Initialization
 
@@ -228,7 +227,7 @@ open class BarcodeScannerController: UIViewController {
   /**
    `UIApplicationWillEnterForegroundNotification` action.
    */
-  @objc func appWillEnterForeground() {
+  @objc private func appWillEnterForeground() {
     torchMode = .off
     animateFocusView()
   }
@@ -238,7 +237,7 @@ open class BarcodeScannerController: UIViewController {
   /**
    Sets up camera and checks for camera permissions.
    */
-  func setupCamera() {
+  private func setupCamera() {
     let authorizationStatus = AVCaptureDevice.authorizationStatus(for: AVMediaType.video)
 
     if authorizationStatus == .authorized {
@@ -263,7 +262,7 @@ open class BarcodeScannerController: UIViewController {
   /**
    Sets up capture input, output and session.
    */
-  func setupSession() {
+  private func setupSession() {
     guard let captureDevice = captureDevice else {
       return
     }
@@ -307,7 +306,7 @@ open class BarcodeScannerController: UIViewController {
   /**
    Resets the current state.
    */
-  func resetState() {
+  private func resetState() {
     let alpha: CGFloat = status.state == .scanning ? 1 : 0
 
     torchMode = .off
@@ -323,32 +322,25 @@ open class BarcodeScannerController: UIViewController {
   }
 
   // MARK: - Layout
-  func setupFrame() {
+  private func setupFrame() {
     let flashButtonSize: CGFloat = 37
     let isLandscape = view.frame.width > view.frame.height
+    let insets = view.viewInsets
+    // On iPhone X devices, extend the size of the top nav bar
+    let navbarSize: CGFloat = isLandscape ? 32 : insets.top > 0 ? 88 : 64
 
-    var rightSafeAreaInset: CGFloat = 0
-    var topSafeAreaInset: CGFloat = 0
-    if #available(iOS 11.0, *) {
-      rightSafeAreaInset = view.safeAreaInsets.right
-      topSafeAreaInset = view.safeAreaInsets.top
-    }
-
-    var navbarSize: CGFloat = 0
-    if (isLandscape) {
-      navbarSize = 32
-    }
-    else {
-      // On iPhone X devices, extend the size of the top nav bar
-      navbarSize = topSafeAreaInset > 0 ? 88 : 64
-    }
-
     headerView.frame = CGRect(x: 0, y: 0, width: view.frame.width, height: navbarSize)
-    flashButton.frame = CGRect(x: view.frame.width - 50 - rightSafeAreaInset, y: navbarSize + 10 + (flashButtonSize / 2), width: flashButtonSize, height: flashButtonSize)
+    flashButton.frame = CGRect(
+      x: view.frame.width - 50 - insets.right,
+      y: navbarSize + 10 + (flashButtonSize / 2),
+      width: flashButtonSize,
+      height: flashButtonSize
+    )
     infoView.frame = infoFrame
 
     if let videoPreviewLayer = videoPreviewLayer {
       videoPreviewLayer.frame = view.layer.bounds
+
       if let connection = videoPreviewLayer.connection, connection.isVideoOrientationSupported {
         switch (UIApplication.shared.statusBarOrientation) {
         case .portrait: connection.videoOrientation = .portrait
@@ -365,6 +357,7 @@ open class BarcodeScannerController: UIViewController {
     } else {
         center(subview: focusView, inSize: CGSize(width: 218, height: 150))
     }
+
     center(subview: settingsButton, inSize: CGSize(width: 150, height: 50))
   }
 
@@ -374,12 +367,13 @@ open class BarcodeScannerController: UIViewController {
    - Parameter subview: The subview.
    - Parameter size: A new size.
   */
-  func center(subview: UIView, inSize size: CGSize) {
+  private func center(subview: UIView, inSize size: CGSize) {
     subview.frame = CGRect(
       x: (view.frame.width - size.width) / 2,
       y: (view.frame.height - size.height) / 2,
       width: size.width,
-      height: size.height)
+      height: size.height
+    )
   }
 
   // MARK: - Animations
@@ -389,7 +383,7 @@ open class BarcodeScannerController: UIViewController {
 
    - Parameter processing: Flag to set the current state to `.Processing`.
    */
-  func animateFlash(whenProcessing: Bool = false) {
+  private func animateFlash(whenProcessing: Bool = false) {
     let flashView = UIView(frame: view.bounds)
     flashView.backgroundColor = UIColor.white
     flashView.alpha = 1
@@ -413,7 +407,7 @@ open class BarcodeScannerController: UIViewController {
   /**
    Performs focus view animation.
    */
-  func animateFocusView() {
+  private func animateFocusView() {
     focusView.layer.removeAllAnimations()
     focusView.isHidden = false
 
@@ -434,7 +428,7 @@ open class BarcodeScannerController: UIViewController {
   /**
    Opens setting to allow camera usage.
    */
-  @objc func settingsButtonDidPress() {
+  @objc private func settingsButtonDidPress() {
     DispatchQueue.main.async {
       if let settingsURL = URL(string: UIApplicationOpenSettingsURLString) {
         UIApplication.shared.openURL(settingsURL)
@@ -445,16 +439,17 @@ open class BarcodeScannerController: UIViewController {
   /**
    Sets the next torch mode.
    */
-  @objc func flashButtonDidPress() {
+  @objc private func flashButtonDidPress() {
     torchMode = torchMode.next
   }
 }
 
 // MARK: - AVCaptureMetadataOutputObjectsDelegate
 
 extension BarcodeScannerController: AVCaptureMetadataOutputObjectsDelegate {
-
-  public func metadataOutput(_ output: AVCaptureMetadataOutput, didOutput metadataObjects: [AVMetadataObject], from connection: AVCaptureConnection) {
+  public func metadataOutput(_ output: AVCaptureMetadataOutput,
+                             didOutput metadataObjects: [AVMetadataObject],
+                             from connection: AVCaptureConnection) {
     guard !locked else { return }
     guard !metadataObjects.isEmpty else { return }
 
@@ -485,7 +480,6 @@ extension BarcodeScannerController: AVCaptureMetadataOutputObjectsDelegate {
 // MARK: - HeaderViewDelegate
 
 extension BarcodeScannerController: HeaderViewDelegate {
-
   func headerViewDidPressClose(_ headerView: HeaderView) {
     dismissalDelegate?.barcodeScannerDidDismiss(self)
   }

Sources/Config.swift

@@ -69,7 +69,6 @@ func localizedString(_ key: String) -> String {
   return key
 }
 
-
 /**
  `AVCaptureMetadataOutput` metadata object types.
  */
@@ -91,5 +90,5 @@ public var metadata = [
 ]
 
 extension AVMetadataObject.ObjectType {
-    public static let upca: AVMetadataObject.ObjectType = AVMetadataObject.ObjectType(rawValue: "org.gs1.UPC-A")
+    public static let upca: AVMetadataObject.ObjectType = .init(rawValue: "org.gs1.UPC-A")
 }

Sources/FocusViewType.swift

@@ -1,7 +1,7 @@
 import UIKit
 
 public enum FocusViewType {
-    case animated
-    case oneDimension
-    case twoDimensions
+  case animated
+  case oneDimension
+  case twoDimensions
 }