Configuration.swift

import AVFoundation
import UIKit

@objc public class ImagePickerConfiguration: NSObject {

  // MARK: Colors

  @objc public var backgroundColor = UIColor(red: 0.15, green: 0.19, blue: 0.24, alpha: 1)
  @objc public var gallerySeparatorColor = UIColor.black.withAlphaComponent(0.6)
  @objc public var mainColor = UIColor(red: 0.09, green: 0.11, blue: 0.13, alpha: 1)
  @objc public var noImagesColor = UIColor(red: 0.86, green: 0.86, blue: 0.86, alpha: 1)
  @objc public var noCameraColor = UIColor(red: 0.86, green: 0.86, blue: 0.86, alpha: 1)
  @objc public var settingsColor = UIColor.white
  @objc public var bottomContainerColor = UIColor(red: 0.09, green: 0.11, blue: 0.13, alpha: 1)

  // MARK: Fonts

  @objc public var numberLabelFont = UIFont.systemFont(ofSize: 19, weight: UIFont.Weight.bold)
  @objc public var doneButton = UIFont.systemFont(ofSize: 19, weight: UIFont.Weight.medium)
  @objc public var flashButton = UIFont.systemFont(ofSize: 12, weight: UIFont.Weight.medium)
  @objc public var noImagesFont = UIFont.systemFont(ofSize: 18, weight: UIFont.Weight.medium)
  @objc public var noCameraFont = UIFont.systemFont(ofSize: 18, weight: UIFont.Weight.medium)
  @objc public var settingsFont = UIFont.systemFont(ofSize: 16, weight: UIFont.Weight.medium)

  // MARK: Titles

  @objc public var OKButtonTitle = "OK"
  @objc public var cancelButtonTitle = "Cancel"
  @objc public var doneButtonTitle = "Done"
  @objc public var noImagesTitle = "No images available"
  @objc public var noCameraTitle = "Camera is not available"
  @objc public var settingsTitle = "Settings"
  @objc public var requestPermissionTitle = "Permission denied"
  @objc public var requestPermissionMessage = "Please, allow the application to access to your photo library."

  // MARK: Dimensions

  @objc public var cellSpacing: CGFloat = 2
  @objc public var indicatorWidth: CGFloat = 41
  @objc public var indicatorHeight: CGFloat = 8

  // MARK: Custom behaviour

  @objc public var canRotateCamera = true
  @objc public var collapseCollectionViewWhileShot = true
  @objc public var recordLocation = true
  @objc public var allowMultiplePhotoSelection = true
  @objc public var allowVideoSelection = false
  @objc public var showsImageCountLabel = true
  @objc public var flashButtonAlwaysHidden = false
  @objc public var managesAudioSession = true
  @objc public var allowPinchToZoom = true
  @objc public var allowedOrientations = UIInterfaceOrientationMask.all
  @objc public var allowVolumeButtonsToTakePicture = true
  @objc public var useLowResolutionPreviewImage = false

  // MARK: Images
  @objc public var indicatorView: UIView = {
    let view = UIView()
    view.backgroundColor = UIColor.white.withAlphaComponent(0.6)
    view.layer.cornerRadius = 4
    view.translatesAutoresizingMaskIntoConstraints = false
    return view
  }()

  override public init() {}
}

// MARK: - Orientation
extension ImagePickerConfiguration {

  @objc public var rotationTransform: CGAffineTransform {
    let currentOrientation = UIDevice.current.orientation

    // check if current orientation is allowed
    switch currentOrientation {
    case .portrait:
      if allowedOrientations.contains(.portrait) {
        Helper.previousOrientation = currentOrientation
      }
    case .portraitUpsideDown:
      if allowedOrientations.contains(.portraitUpsideDown) {
        Helper.previousOrientation = currentOrientation
      }
    case .landscapeLeft:
      if allowedOrientations.contains(.landscapeLeft) {
        Helper.previousOrientation = currentOrientation
      }
    case .landscapeRight:
      if allowedOrientations.contains(.landscapeRight) {
        Helper.previousOrientation = currentOrientation
      }
    default: break
    }

    // set default orientation if current orientation is not allowed
    if Helper.previousOrientation == .unknown {
      if allowedOrientations.contains(.portrait) {
        Helper.previousOrientation = .portrait
      } else if allowedOrientations.contains(.landscapeLeft) {
        Helper.previousOrientation = .landscapeLeft
      } else if allowedOrientations.contains(.landscapeRight) {
        Helper.previousOrientation = .landscapeRight
      } else if allowedOrientations.contains(.portraitUpsideDown) {
        Helper.previousOrientation = .portraitUpsideDown
      }
    }

    return Helper.getTransform(fromDeviceOrientation: Helper.previousOrientation)
  }
}