added onChange

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

VDS/Classes/SelectorGroupHandlerBase.swift

@@ -7,14 +7,23 @@
 
 import Foundation
 import UIKit
+import Combine
 
-public class SelectorGroupHandlerBase<HandlerType: Control>: Control {
+public class SelectorGroupHandlerBase<HandlerType: Control>: Control, Changeable {
 
     //--------------------------------------------------
     // MARK: - Public Properties
     //--------------------------------------------------
     public var selectorViews: [HandlerType] = []
             
+    public var onChangeSubscriber: AnyCancellable? {
+        willSet {
+            if let onChangeSubscriber {
+                onChangeSubscriber.cancel()
+            }
+        }
+    }
+
     //--------------------------------------------------
     // MARK: - Overrides
     //--------------------------------------------------

VDS/Components/Checkbox/Checkbox.swift

@@ -7,13 +7,13 @@
 
 import Foundation
 import UIKit
+import Combine
 import VDSColorTokens
 import VDSFormControlsTokens
-import Combine
 
 /// Checkboxes are a multi-select component through which a customer indicates a choice. If a binary choice, the component is a checkbox. If the choice has multiple options, the component is a ``CheckboxGroup``.
 @objc(VDSCheckboxBase)
-open class Checkbox: Control, Errorable {
+open class Checkbox: Control, Errorable, Changeable {
     
     //--------------------------------------------------
     // MARK: - Initializers
@@ -63,6 +63,14 @@ open class Checkbox: Control, Errorable {
     //--------------------------------------------------
     // MARK: - Public Properties
     //--------------------------------------------------
+    public var onChangeSubscriber: AnyCancellable? {
+        willSet {
+            if let onChangeSubscriber {
+                onChangeSubscriber.cancel()
+            }
+        }
+    }
+    
     open var label = Label().with {
         $0.setContentCompressionResistancePriority(.required, for: .vertical)
         $0.textPosition = .left

VDS/Components/RadioBox/RadioBox.swift

@@ -7,12 +7,12 @@
 
 import Foundation
 import UIKit
+import Combine
 import VDSColorTokens
 import VDSFormControlsTokens
-import Combine
 
 @objc(VDSRadioBox)
-open class RadioBox: Control {
+open class RadioBox: Control, Changeable {
     
     //--------------------------------------------------
     // MARK: - Initializers
@@ -56,6 +56,14 @@ open class RadioBox: Control {
     //--------------------------------------------------
     // MARK: - Public Properties
     //--------------------------------------------------
+    public var onChangeSubscriber: AnyCancellable? {
+        willSet {
+            if let onChangeSubscriber {
+                onChangeSubscriber.cancel()
+            }
+        }
+    }
+    
     open var textLabel = Label().with {
         $0.setContentCompressionResistancePriority(.required, for: .vertical)
         $0.textPosition = .left

VDS/Components/RadioButton/RadioButton.swift

@@ -7,11 +7,12 @@
 
 import Foundation
 import UIKit
+import Combine
 import VDSColorTokens
 import VDSFormControlsTokens
 
 @objc(VDSRadioButton)
-open class RadioButton: Control, Errorable {
+open class RadioButton: Control, Errorable, Changeable {
     
     //--------------------------------------------------
     // MARK: - Initializers
@@ -61,6 +62,14 @@ open class RadioButton: Control, Errorable {
     //--------------------------------------------------
     // MARK: - Public Properties
     //--------------------------------------------------
+    public var onChangeSubscriber: AnyCancellable? {
+        willSet {
+            if let onChangeSubscriber {
+                onChangeSubscriber.cancel()
+            }
+        }
+    }
+    
     open var label = Label().with {
         $0.setContentCompressionResistancePriority(.required, for: .vertical)
         $0.textPosition = .left

VDS/Components/TextFields/EntryField/EntryField.swift

@@ -12,7 +12,7 @@ import VDSFormControlsTokens
 import Combine
 
 @objc(VDSEntryField)
-open class EntryField: Control {
+open class EntryField: Control, Changeable {
     //--------------------------------------------------
     // MARK: - Enums
     //--------------------------------------------------
@@ -98,6 +98,14 @@ open class EntryField: Control {
     //--------------------------------------------------
     // MARK: - Public Properties
     //--------------------------------------------------
+    public var onChangeSubscriber: AnyCancellable? {
+        willSet {
+            if let onChangeSubscriber {
+                onChangeSubscriber.cancel()
+            }
+        }
+    }
+
     open var titleLabel = Label().with {
         $0.setContentCompressionResistancePriority(.required, for: .vertical)
         $0.attributes = []

VDS/Components/Toggle/Toggle.swift

@@ -18,7 +18,7 @@ import Combine
  Knob: The circular indicator that slides on the container.
  */
 @objc(VDSToggle)
-open class Toggle: Control {
+open class Toggle: Control, Changeable {
     //--------------------------------------------------
     // MARK: - Enums
     //--------------------------------------------------
@@ -107,6 +107,14 @@ open class Toggle: Control {
     //--------------------------------------------------
     // MARK: - Public Properties
     //--------------------------------------------------
+    public var onChangeSubscriber: AnyCancellable? {
+        willSet {
+            if let onChangeSubscriber {
+                onChangeSubscriber.cancel()
+            }
+        }
+    }
+    
     open var label = Label().with {
         $0.setContentCompressionResistancePriority(.required, for: .vertical)
     }

VDS/Protocols/Clickable.swift

@@ -15,13 +15,6 @@ public protocol Clickable: Handlerable where Self: UIControl {
 }
 
 extension Clickable {
-    public func addEvent(event: UIControl.Event, block: @escaping (Self)->()) {
-        publisher(for: event)
-            .sink(receiveValue: { c in
-                block(c)
-            }).store(in: &subscribers)
-    }
-
     public var onClick: ((Self) -> ())? {
         get { return nil }
         set {

VDS/Protocols/Handlerable.swift

@@ -34,3 +34,12 @@ extension Handlerable where Self: UIView {
         subject.send()
     }
 }
+
+extension Handlerable where Self: UIControl {
+    public func addEvent(event: UIControl.Event, block: @escaping (Self)->()) {
+        publisher(for: event)
+            .sink(receiveValue: { c in
+                block(c)
+            }).store(in: &subscribers)
+    }
+}