add kcp

Src/Unity/Scripts/UX/Utils/UXTabContainerEvent.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Threading;
+using Cysharp.Threading.Tasks;
+using UnityEngine;
+using UnityEngine.Events;
+
+namespace BITKit.UX
+{
+	public class UXTabContainerEvent : UXElement<TabContainer>
+	{
+		[Tooltip("基于<see cref=\"TabBar\"/>的Tab切换事件")]
+		[SerializeField] private UnityEvent<bool>[] onEntryTab;
+
+		[SerializeField] private UnityEvent[] onEntry;
+		[SerializeField] private UnityEvent[] onExit;
+		
+		private readonly DoubleBuffer<int> tabBuffer = new();
+		private CancellationToken _cancellationToken;
+		public override void OnAwake()
+		{
+			base.OnAwake();
+			_cancellationToken = gameObject.GetCancellationTokenOnDestroy();
+		}
+
+		public override async void OnStart()
+		{
+			base.OnStart();
+			visualElement.OnTabChanged += OnTabChanged;
+			foreach (var unityEvent in onEntryTab)
+			{
+				unityEvent.Invoke(false);
+			}
+
+			try
+			{
+				await UniTask.NextFrame(_cancellationToken);
+				OnTabChanged(visualElement.CurrentTab);
+			}
+			catch(OperationCanceledException){}
+		}
+		private void OnTabChanged(int obj)
+		{
+			if(onEntryTab.TryGetElementAt(tabBuffer.Current,out var unityEvent))
+			{
+				unityEvent.Invoke(false);
+			}
+			if(onEntryTab.TryGetElementAt(obj, out unityEvent))
+			{
+				unityEvent.Invoke(true);
+			}
+			if(onExit.TryGetElementAt(tabBuffer.Current,out var exitEvent))
+			{
+				exitEvent.Invoke();
+			}
+			if(onEntry.TryGetElementAt(obj, out var entryEvent))
+			{
+				entryEvent.Invoke();
+			}
+			tabBuffer.Release(obj);
+		}
+	}
+
+}