Digital ACT-191 ONEAPP-9311 story: added actions to decrement and increment buttons.

VDS/Components/InputStepper/InputStepper.swift

@@ -135,7 +135,10 @@ open class InputStepper: EntryFieldBase {
         super.setup()
         isAccessibilityElement = false
         accessibilityLabel = "Input Stepper"
-        containerView.isEnabled = false        
+        containerView.isEnabled = false
+        
+        decrementButton.onClick =  { _ in  self.decrementButtonClick() }
+        incrementButton.onClick =  { _ in  self.incrementButtonClick() }
     }
     
     open override func getFieldContainer() -> UIView {
@@ -160,6 +163,7 @@ open class InputStepper: EntryFieldBase {
         decrementButton.surface = surface
         incrementButton.surface = surface
         textLabel.surface = surface
+        updateButtonStates()
         statusIcon.isHidden = true
     }
     
@@ -179,6 +183,27 @@ open class InputStepper: EntryFieldBase {
     //--------------------------------------------------
     // MARK: - Private Methods
     //--------------------------------------------------
+    
+    internal func decrementButtonClick() {
+        defaultValue = defaultValue - 1
+        updateButtonStates()
+    }
+    
+    internal func incrementButtonClick() {
+        defaultValue = defaultValue + 1
+        updateButtonStates()
+    }
+    
+    internal func updateButtonStates() {
+        if isReadOnly || !isEnabled {
+            decrementButton.isEnabled = false
+            incrementButton.isEnabled = false
+        } else {
+            decrementButton.isEnabled = defaultValue > _minValue ? true : false
+            incrementButton.isEnabled = defaultValue < _maxValue ? true : false
+        }
+    }
+    
     internal func updateSize() {
         let value = size == .large ? 6.0 : VDSLayout.space1X
         updateConstraintsToFieldStackView(value: value)