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Assets/VRTemplateAssets/Scripts/BooleanToggleVisualsController.cs

@@ -0,0 +1,91 @@
+using UnityEngine;
+using UnityEngine.EventSystems;
+using UnityEngine.UI;
+
+namespace Unity.VRTemplate
+{
+    /// <summary>
+    /// Controls the visual states of a boolean toggle switch UI
+    /// </summary>
+    [RequireComponent(typeof(Toggle))]
+    public class BooleanToggleVisualsController : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler
+    {
+        const float k_TargetPositionX = 17f;
+
+#pragma warning disable 649
+        [SerializeField, Tooltip("The boolean toggle knob.")]
+        RectTransform m_Knob;
+
+        [SerializeField, Tooltip("How much to translate the button imagery on the z on hover.")]
+        float m_ZTranslation = 5f;
+#pragma warning restore 649
+
+        Toggle m_Toggle;
+        float m_InitialBackground;
+        Coroutine m_ColorFade;
+        Coroutine m_LocalMove;
+
+        void Awake()
+        {
+            m_Toggle = gameObject.GetComponent<Toggle>();
+
+            //Add listener for when the state of the Toggle changes, to take action
+            m_Toggle.onValueChanged.AddListener(ToggleValueChanged);
+
+            if (m_Knob != null)
+            {
+                m_InitialBackground = m_Knob.localPosition.z;
+            }
+        }
+
+        void OnEnable()
+        {
+            ToggleValueChanged(m_Toggle.isOn);
+        }
+
+        /// <inheritdoc />
+        void IPointerEnterHandler.OnPointerEnter(PointerEventData eventData)
+        {
+            PerformEntranceActions();
+        }
+
+        /// <inheritdoc />
+        void IPointerExitHandler.OnPointerExit(PointerEventData eventData)
+        {
+            PerformExitActions();
+        }
+
+        void ToggleValueChanged(bool value)
+        {
+            if (value)
+            {
+                m_Knob.localPosition = new Vector3(k_TargetPositionX, m_Knob.localPosition.y, m_Knob.localPosition.z);
+            }
+            else
+            {
+                m_Knob.localPosition = new Vector3(-k_TargetPositionX, m_Knob.localPosition.y, m_Knob.localPosition.z);
+            }
+        }
+
+        void PerformEntranceActions()
+        {
+            if (m_Knob != null)
+            {
+                var backgroundLocalPosition = m_Knob.localPosition;
+                backgroundLocalPosition.z = m_InitialBackground - m_ZTranslation;
+                m_Knob.localPosition = backgroundLocalPosition;
+            }
+        }
+
+        void PerformExitActions()
+        {
+            if (m_Knob != null)
+            {
+                var backgroundLocalPosition = m_Knob.localPosition;
+                backgroundLocalPosition.z = m_InitialBackground;
+                m_Knob.localPosition = backgroundLocalPosition;
+                m_Knob.localScale = Vector3.one;
+            }
+        }
+    }
+}