added comments

Signed-off-by: Matt Bruce <matt.bruce@verizon.com>

VDS/Components/Loader/LoaderLaunchable.swift

@@ -8,12 +8,18 @@
 import Foundation
 import UIKit
 
+/// Protocol used for any object to be able to launch a loader
 public protocol LoaderLaunchable {
     func presentLoader(surface: Surface, size: Int?)
     func dismissLoader()
 }
 
 extension LoaderLaunchable {
+    
+    /// Default implementation for presenting
+    /// - Parameters:
+    ///   - surface: Surface for the Loader
+    ///   - size: Size for the loader, nil is default.
     public func presentLoader(surface: Surface, size: Int? = nil) {
         if let presenting = UIApplication.topViewController() {
             let viewController = LoaderViewController(nibName: nil, bundle: nil).with {
@@ -28,6 +34,7 @@ extension LoaderLaunchable {
         }
     }
     
+    /// Dismisses the Loader
     public func dismissLoader() {
         if let presenting = UIApplication.topViewController() as? LoaderViewController {
             presenting.dismiss(animated: true)

VDS/Components/Loader/LoaderViewController.swift

@@ -9,23 +9,41 @@ import Foundation
 import UIKit
 import VDSColorTokens
 
-public class LoaderViewController: UIViewController, Surfaceable {
+/// ViewController to show the Loader, this will be presented using the LoaderLaunchable Protocl.
+open class LoaderViewController: UIViewController, Surfaceable {
+    //--------------------------------------------------
+    // MARK: - Private Properties
+    //--------------------------------------------------
     private var loader = Loader()
     private var backgroundColorConfiguration = SurfaceColorConfiguration(VDSColor.backgroundPrimaryLight, VDSColor.backgroundPrimaryDark)
-
-    public var surface: Surface = .light
-    public var size: Int?
     
-    public override func viewDidLoad() {
+    //--------------------------------------------------
+    // MARK: - Public Properties
+    //--------------------------------------------------
+    /// Current Surface used within this Control and used to passdown to child views
+    open var surface: Surface = .light { didSet { updateView() }}
+    
+    /// Size of the Height and Width of the Loader view.
+    open var size: Int? { didSet { updateView() }}
+    
+    //--------------------------------------------------
+    // MARK: - Lifecycle
+    //--------------------------------------------------
+    open override func viewDidLoad() {
         super.viewDidLoad()
-        setup()
+        view.addSubview(loader)
+        NSLayoutConstraint.activate([
+            loader.centerXAnchor.constraint(equalTo: view.centerXAnchor),
+            loader.centerYAnchor.constraint(equalTo: view.centerYAnchor)
+        ])
     }
     
-    public override func viewWillAppear(_ animated: Bool) {
+    open override func viewWillAppear(_ animated: Bool) {
         super.viewWillAppear(animated)
         updateView()
     }
-   
+    
+    /// Update this view based off of property chang
     open func updateView() {
         view.backgroundColor = backgroundColorConfiguration.getColor(self).withAlphaComponent(0.8)
         if let size {
@@ -33,12 +51,4 @@ public class LoaderViewController: UIViewController, Surfaceable {
         }
         loader.surface = surface
     }
-    
-    private func setup() {
-        view.addSubview(loader)
-        NSLayoutConstraint.activate([
-            loader.centerXAnchor.constraint(equalTo: view.centerXAnchor),
-            loader.centerYAnchor.constraint(equalTo: view.centerYAnchor)
-        ])
-    }
 }