Init TEngine4.0.0

Init TEngine4.0.0

UnityProject/Packages/YooAsset/Editor/UxmlLoader.cs

@@ -0,0 +1,55 @@
+#if UNITY_2019_4_OR_NEWER
+using System.Collections;
+using System.Collections.Generic;
+using UnityEditor;
+using UnityEngine;
+using UnityEditor.UIElements;
+using UnityEngine.UIElements;
+
+namespace YooAsset.Editor
+{
+	public class UxmlLoader
+	{
+		private readonly static Dictionary<System.Type, string> _uxmlDic = new Dictionary<System.Type, string>();
+
+		/// <summary>
+		/// 加载窗口的布局文件
+		/// </summary>
+		public static UnityEngine.UIElements.VisualTreeAsset LoadWindowUXML<TWindow>() where TWindow : class
+		{
+			var windowType = typeof(TWindow);
+
+			// 缓存里查询并加载
+			if (_uxmlDic.TryGetValue(windowType, out string uxmlGUID))
+			{
+				string assetPath = AssetDatabase.GUIDToAssetPath(uxmlGUID);
+				if (string.IsNullOrEmpty(assetPath))
+				{
+					_uxmlDic.Clear();
+					throw new System.Exception($"Invalid UXML GUID : {uxmlGUID} ! Please close the window and open it again !");
+				}
+				var treeAsset = AssetDatabase.LoadAssetAtPath<UnityEngine.UIElements.VisualTreeAsset>(assetPath);
+				return treeAsset;
+			}
+
+			// 全局搜索并加载
+			string[] guids = AssetDatabase.FindAssets(windowType.Name);
+			if (guids.Length == 0)
+				throw new System.Exception($"Not found any assets : {windowType.Name}");
+
+			foreach (string assetGUID in guids)
+			{
+				string assetPath = AssetDatabase.GUIDToAssetPath(assetGUID);
+				var assetType = AssetDatabase.GetMainAssetTypeAtPath(assetPath);
+				if (assetType == typeof(UnityEngine.UIElements.VisualTreeAsset))
+				{
+					_uxmlDic.Add(windowType, assetGUID);
+					var treeAsset = AssetDatabase.LoadAssetAtPath<UnityEngine.UIElements.VisualTreeAsset>(assetPath);
+					return treeAsset;
+				}
+			}
+			throw new System.Exception($"Not found UXML file : {windowType.Name}");
+		}
+	}
+}
+#endif