Update

Assets/Invector-3rdPersonController/ItemManager/Scripts/vToolbarButton.cs

@@ -0,0 +1,52 @@
+using UnityEngine;
+using UnityEngine.EventSystems;
+using UnityEngine.UI;
+namespace Invector.vItemManager
+{
+    [RequireComponent(typeof(Image))]
+    public class vToolbarButton : MonoBehaviour, IPointerClickHandler
+    {
+        public GameObject targetWindow;
+        public Image image;
+        public Color selectedColor = Color.white;
+        public Color unSelectedColor = Color.grey;
+        public UnityEngine.Events.UnityEvent onSelect, onDeselect;
+        bool isSelected;
+        public virtual void Reset()
+        {
+            image = GetComponent<Image>();
+            if (!image) image = gameObject.AddComponent<Image>();
+        }
+        protected virtual void OnDisable()
+        {
+            image.color = unSelectedColor;
+            image.SetAllDirty();
+            onDeselect.Invoke(); isSelected = false;
+        }
+        public virtual void OnSelectTool(vToolbarButton toolbarButton)
+        {
+            if (toolbarButton.Equals(this))
+            {
+                image.color = selectedColor;
+                if (!isSelected)
+                {
+                    isSelected = true;
+                    onSelect.Invoke();
+                }
+                image.SetAllDirty();
+            }
+            else
+            {
+                image.color = unSelectedColor;
+                image.SetAllDirty();
+                onDeselect.Invoke(); isSelected = false;
+            }
+        }
+
+        public virtual void OnPointerClick(PointerEventData eventData)
+        {
+            onSelect.Invoke();
+            isSelected = true;
+        }
+    }
+}