Studio/Assets/Scripts/XED/UI/TreeView/ScrollViewMenu_ImportExport.cs

using System.Collections;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
using XRLib.UI;
using XED.Asset;
using XED.Hierarchy;

namespace XED.UI
{
    public class ScrollViewMenu_ImportExport : PanelBase, IDeselectHandler
    {
        private Canvas canvas;
        private CustomScrollRect scrollRect;
        private Button btnExport;
        private Button btnImport;
        private Selectable selectable;
        private void Awake()
        { 
            canvas = GetComponentInParent<Canvas>();
            selectable = GetComponent<Selectable>();
            foreach (Button btn in GetComponentsInChildren<Button>())
            {
                if (btn.gameObject.name.Equals("Export"))
                {
                    btnExport = btn; 
                }
                else if (btn.gameObject.name.Equals("Import"))
                {
                    btnImport = btn; 
                }
            }
        }
        // Start is called once before the first execution of Update after the MonoBehaviour is created
        public override void AfterAwake()
        {
            var customAssetConnector = FindSingle<CustomAssetConnector>();
            btnExport.onClick.AddListener(customAssetConnector.SaveSelectedAssetDatasToLocal);
            btnImport.onClick.AddListener(customAssetConnector.LoadLocalAssetDatas);
            scrollRect = FindSingle<Canvas_Windows>().panel_assetlibrary.scrollRect;
            scrollRect.menuPopup = gameObject;
            SetActive(false);
        }
        protected override void OnEnable()
        {
            base.OnEnable();
            selectable.Select();
            RectTransformUtility.ScreenPointToLocalPointInRectangle(
                canvas.transform as RectTransform,
                Input.mousePosition,
                canvas.worldCamera,
                out Vector2 pos
            );
            transform.position = canvas.transform.TransformPoint(pos);
        } 
        public void OnDeselect(BaseEventData eventData)
        {
            StartCoroutine(CoroutineDelayedClose()); 
        } 
        IEnumerator CoroutineDelayedClose()
        {
            yield return new WaitForSeconds(0.1f);
            gameObject.SetActive(false);
            yield return null;
        }
    }
}