add InteractableUIElement

EasyInteractive/InteractableUIElement.cs

@@ -0,0 +1,50 @@
+using UnityEngine;
+using UnityEngine.EventSystems;
+
+namespace HalfDog.EasyInteractive
+{
+    public abstract class InteractableUIElement : MonoBehaviour, 
+        IPointerEnterHandler,
+        IPointerExitHandler
+    {
+        public bool enableInteract = true;
+        public void OnPointerEnter(PointerEventData eventData)
+        {
+            if (!enableInteract) return;
+            if ((this as IFocusable) != null && (this as IFocusable).enableFocus) 
+            {
+                EasyInteractive.Instance.SetCurrentFocused(this as IFocusable,true);
+            }
+            if ((this as ISelectable) != null && (this as ISelectable).enableSelect)
+            {
+                EasyInteractive.Instance.readySelect = (this as ISelectable);
+            }
+            if ((this as IDragable) != null && (this as IDragable).enableDrag) 
+            {
+                EasyInteractive.Instance.readyDrag = (this as IDragable);
+            }
+        }
+
+        public void OnPointerExit(PointerEventData eventData)
+        {
+            if (!enableInteract) return;
+            if ((this as IFocusable) != null && (this as IFocusable).enableFocus)
+            {
+                if (EasyInteractive.Instance.currentFocused == (this as IFocusable)) 
+                {
+                    EasyInteractive.Instance.SetCurrentFocused(null,true);
+                }
+            }
+            if ((this as ISelectable) != null && (this as ISelectable).enableSelect)
+            {
+                if((this as ISelectable) == EasyInteractive.Instance.readySelect)
+                    EasyInteractive.Instance.readySelect = null;
+            }
+            if ((this as IDragable) != null && (this as IDragable).enableDrag)
+            {
+                if ((this as IDragable) == EasyInteractive.Instance.readyDrag)
+                    EasyInteractive.Instance.readyDrag = null;
+            }
+        }
+    }
+}