Add UI Toolkit support

.gitignore

@@ -71,3 +71,4 @@ crashlytics-build.properties
 /[Aa]ssets/[Ss]treamingAssets/aa.meta
 /[Aa]ssets/[Ss]treamingAssets/aa/*
 ProjectSettings/RiderScriptEditorPersistedState.asset
+/UIElementsSchema

Assets/UGF.EditorTools.Editor.Tests/Assets/New Test Asset Id Reference Asset 2.asset

@@ -0,0 +1,34 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!114 &11400000
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: bcca65976dec45a0a7cc22a47d33ec55, type: 3}
+  m_Name: New Test Asset Id Reference Asset 2
+  m_EditorClassIdentifier: 
+  m_test: {fileID: 11400000, guid: 28ca3cd16791a7d4d8239d0664e44359, type: 2}
+  m_scriptable:
+    m_guid:
+      m_first: 17862470146234317747
+      m_second: 7112672179637281834
+    m_asset: {fileID: 11400000, guid: 6550fbb33df5f7e42a6415afa949b562, type: 2}
+  m_material:
+    m_guid:
+      m_first: 15525150360673092132
+      m_second: 3862614618297821529
+    m_asset: {fileID: 2100000, guid: 4c72822469ffd7745969dfc387c39a35, type: 2}
+  m_list:
+  - m_guid:
+      m_first: 5644284074733981451
+      m_second: 8935266605448331448
+    m_asset: {fileID: 2100000, guid: 15e9cf0b86764e54b88028f7a271007c, type: 2}
+  - m_guid:
+      m_first: 0
+      m_second: 0
+    m_asset: {fileID: 0}

Assets/UGF.EditorTools.Editor.Tests/Assets/TestAssetIdReferenceAsset2.cs

@@ -0,0 +1,20 @@
+using System.Collections.Generic;
+using UGF.EditorTools.Runtime.Assets;
+using UnityEngine;
+
+namespace UGF.EditorTools.Editor.Tests.Assets
+{
+    [CreateAssetMenu(menuName = "Tests/TestAssetIdReferenceAsset2")]
+    public class TestAssetIdReferenceAsset2 : ScriptableObject
+    {
+        [SerializeField] private ScriptableObject m_test;
+        [SerializeField] private AssetIdReference<ScriptableObject> m_scriptable;
+        [SerializeField] private AssetIdReference<Material> m_material;
+        [SerializeField] private List<AssetIdReference<Material>> m_list = new List<AssetIdReference<Material>>();
+
+        public ScriptableObject Test { get { return m_test; } set { m_test = value; } }
+        public AssetIdReference<ScriptableObject> Scriptable { get { return m_scriptable; } set { m_scriptable = value; } }
+        public AssetIdReference<Material> Material { get { return m_material; } set { m_material = value; } }
+        public List<AssetIdReference<Material>> List { get { return m_list; } }
+    }
+}

Assets/UGF.EditorTools.Editor.Tests/IMGUI.AssetReferences/New Test Asset Reference Asset 2.asset

@@ -0,0 +1,22 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!114 &11400000
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 32f9c6f989b6412a9435ce6d227c9723, type: 3}
+  m_Name: New Test Asset Reference Asset 2
+  m_EditorClassIdentifier: 
+  m_scriptable:
+    m_guid: 
+    m_asset: {fileID: 0}
+  m_material:
+    m_guid: 
+    m_asset: {fileID: 0}
+  m_list: []
+  m_list2: []

Assets/UGF.EditorTools.Editor.Tests/IMGUI.AssetReferences/TestAssetReferenceAsset.cs

@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using UGF.EditorTools.Editor.IMGUI;
 using UGF.EditorTools.Editor.IMGUI.AssetReferences;
+using UGF.EditorTools.Runtime.Attributes;
 using UGF.EditorTools.Runtime.IMGUI.AssetReferences;
 using UnityEditor;
 using UnityEngine;
@@ -12,7 +13,9 @@ public class TestAssetReferenceAsset : ScriptableObject
     {
         [SerializeField] private AssetReference<ScriptableObject> m_scriptable;
         [SerializeField] private AssetReference<Material> m_material;
+        [List, HideLabel]
         [SerializeField] private List<AssetReference<Material>> m_list = new List<AssetReference<Material>>();
+        [List, HideLabel]
         [SerializeField] private List<AssetReference<Material>> m_list2 = new List<AssetReference<Material>>();
 
         public AssetReference<ScriptableObject> Scriptable { get { return m_scriptable; } set { m_scriptable = value; } }
@@ -22,7 +25,7 @@ public class TestAssetReferenceAsset : ScriptableObject
     }
 
     [CanEditMultipleObjects]
-    [CustomEditor(typeof(TestAssetReferenceAsset), true)]
+    // [CustomEditor(typeof(TestAssetReferenceAsset), true)]
     public class TestAssetReferenceAssetEditor : UnityEditor.Editor
     {
         private SerializedProperty m_propertyScriptable;

Assets/UGF.EditorTools.Editor.Tests/IMGUI.AssetReferences/TestAssetReferenceAsset2.cs

@@ -0,0 +1,20 @@
+using System.Collections.Generic;
+using UGF.EditorTools.Runtime.IMGUI.AssetReferences;
+using UnityEngine;
+
+namespace UGF.EditorTools.Editor.Tests.IMGUI.AssetReferences
+{
+    [CreateAssetMenu(menuName = "Tests/TestAssetReferenceAsset2")]
+    public class TestAssetReferenceAsset2 : ScriptableObject
+    {
+        [SerializeField] private AssetReference<ScriptableObject> m_scriptable;
+        [SerializeField] private AssetReference<Material> m_material;
+        [SerializeField] private List<AssetReference<Material>> m_list = new List<AssetReference<Material>>();
+        [SerializeField] private List<AssetReference<Material>> m_list2 = new List<AssetReference<Material>>();
+
+        public AssetReference<ScriptableObject> Scriptable { get { return m_scriptable; } set { m_scriptable = value; } }
+        public AssetReference<Material> Material { get { return m_material; } set { m_material = value; } }
+        public List<AssetReference<Material>> List { get { return m_list; } }
+        public List<AssetReference<Material>> List2 { get { return m_list2; } }
+    }
+}

Assets/UGF.EditorTools.Editor.Tests/IMGUI.Attributes/TestAttributesAsset.cs

@@ -1,4 +1,5 @@
-using UGF.EditorTools.Runtime.IMGUI.Attributes;
+using UGF.EditorTools.Runtime.Attributes;
+using UGF.EditorTools.Runtime.IMGUI.Attributes;
 using UnityEngine;
 using UnityEngine.SceneManagement;
 
@@ -39,6 +40,9 @@ public class TestAttributesAsset : ScriptableObject, ITestAttributesAsset
         [SerializeField, ResourcesPath(typeof(Scene))]
         private string m_resourcesScene;
 
+        [SerializeField, HideLabel]
+        private string m_hideLabel = "Hide Label";
+
         public string Disabled { get { return m_disabled; } set { m_disabled = value; } }
         public string AssetGuid { get { return m_assetGuid; } set { m_assetGuid = value; } }
         public string GuidMaterial { get { return m_guidMaterial; } set { m_guidMaterial = value; } }
@@ -51,6 +55,7 @@ public class TestAttributesAsset : ScriptableObject, ITestAttributesAsset
         public string ResourcesMaterial2 { get { return m_resourcesMaterial2; } set { m_resourcesMaterial2 = value; } }
         public string ResourcesMaterial3 { get { return m_resourcesMaterial3; } set { m_resourcesMaterial3 = value; } }
         public string ResourcesScene { get { return m_resourcesScene; } set { m_resourcesScene = value; } }
+        public string HideLabel { get { return m_hideLabel; } set { m_hideLabel = value; } }
     }
 
     public interface ITestAttributesAsset

Assets/UGF.EditorTools.Editor.Tests/IMGUI.EnabledProperty/TestEnabledPropertyAssetEditor.cs

@@ -5,7 +5,7 @@
 namespace UGF.EditorTools.Editor.Tests.IMGUI.EnabledProperty
 {
     [CanEditMultipleObjects]
-    [CustomEditor(typeof(TestEnabledPropertyAsset), true)]
+    // [CustomEditor(typeof(TestEnabledPropertyAsset), true)]
     public class TestEnabledPropertyAssetEditor : UnityEditor.Editor
     {
         private EnabledPropertyListDrawer m_list1;

Assets/UGF.EditorTools.Editor.Tests/IMGUI/EditorDrawerTestAsset.cs

@@ -1,8 +1,11 @@
 using UGF.EditorTools.Editor.IMGUI;
+using UGF.EditorTools.Editor.UIToolkit.Elements;
 using UGF.EditorTools.Runtime.Assets;
 using UGF.EditorTools.Runtime.Ids;
 using UnityEditor;
+using UnityEditor.UIElements;
 using UnityEngine;
+using UnityEngine.UIElements;
 using Object = UnityEngine.Object;
 
 namespace UGF.EditorTools.Editor.Tests.IMGUI
@@ -62,6 +65,26 @@ public override void OnInspectorGUI()
             m_dropAreaDrawer.DrawGUILayout();
         }
 
+        public override VisualElement CreateInspectorGUI()
+        {
+            var element = new VisualElement();
+
+            InspectorElement.FillDefaultInspector(element, serializedObject, this);
+
+            var dropArea = new DropAreaElement(typeof(ScriptableObject));
+            var dropArea2 = new DropAreaElement(typeof(Material));
+
+            dropArea.Manipulator.Accepted += OnDropAreaDrawerAccepted;
+            dropArea2.Manipulator.Accepted += OnDropAreaDrawerAccepted;
+
+            element.Add(dropArea);
+            element.Add(dropArea2);
+            element.Add(new EditorObjectReferenceElement(m_propertyTarget));
+            element.Add(new EditorObjectReferenceIdElement(m_propertyTarget2));
+
+            return element;
+        }
+
         private void OnDropAreaDrawerAccepted(Object asset)
         {
             Debug.Log($"Drop area accepted: '{asset}'.");

Assets/UGF.EditorTools.Editor.Tests/IMGUI/ReorderableListTestAsset.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using UGF.EditorTools.Editor.IMGUI;
 using UGF.EditorTools.Runtime.Assets;
+using UGF.EditorTools.Runtime.Attributes;
 using UGF.EditorTools.Runtime.Ids;
 using UGF.EditorTools.Runtime.IMGUI.References;
 using UnityEditor;
@@ -13,10 +14,16 @@ namespace UGF.EditorTools.Editor.Tests.IMGUI
     [CreateAssetMenu(menuName = "Tests/ReorderableListTestAsset")]
     public class ReorderableListTestAsset : ScriptableObject
     {
+        [List]
         [SerializeField] private List<ScriptableObject> m_list1;
+        [List, HideLabel]
+        [SerializeField] private List<ScriptableObject> m_list10;
+        [SerializeField] private List<ScriptableObject> m_list11;
+        [List]
         [SerializeField] private List<Data1> m_list2;
         [SerializeField] private List<Data2> m_list3;
         [SerializeReference, ManagedReference] private List<IData> m_list4;
+        [ListKeyAndValue]
         [SerializeField] private List<Entry> m_list5;
         [AssetId]
         [SerializeField] private List<GlobalId> m_list6;
@@ -49,7 +56,7 @@ public class Data2 : IData
         }
     }
 
-    [CustomEditor(typeof(ReorderableListTestAsset), true)]
+    // [CustomEditor(typeof(ReorderableListTestAsset), true)]
     public class ReorderableListTestAssetEditor : UnityEditor.Editor
     {
         private EditorListDrawer m_drawer1;

Assets/UGF.EditorTools.Editor.Tests/IMGUI/TestEditorElementsUtilityAsset.cs

@@ -2,9 +2,13 @@
 using UGF.EditorTools.Editor.IMGUI;
 using UGF.EditorTools.Editor.IMGUI.Dropdown;
 using UGF.EditorTools.Editor.IMGUI.Scopes;
+using UGF.EditorTools.Editor.UIToolkit;
+using UGF.EditorTools.Editor.UIToolkit.Elements;
 using UGF.EditorTools.Runtime.IMGUI.Attributes;
 using UnityEditor;
+using UnityEditor.UIElements;
 using UnityEngine;
+using UnityEngine.UIElements;
 
 namespace UGF.EditorTools.Editor.Tests.IMGUI
 {
@@ -62,6 +66,31 @@ public override void OnInspectorGUI()
             }
         }
 
+        public override VisualElement CreateInspectorGUI()
+        {
+            var element = new VisualElement();
+
+            InspectorElement.FillDefaultInspector(element, serializedObject, this);
+
+            var timeSpanTicksFieldArgumentsElement = new TimeSpanTicksFieldArgumentsElement
+            {
+                label = "Time Span Ticks Field Arguments"
+            };
+
+            var timeTicksFieldArgumentsElement = new TimeTicksFieldArgumentsElement()
+            {
+                label = "Time Ticks Field Arguments"
+            };
+
+            UIToolkitEditorUtility.AddFieldClasses(timeSpanTicksFieldArgumentsElement);
+            UIToolkitEditorUtility.AddFieldClasses(timeTicksFieldArgumentsElement);
+
+            element.Add(timeSpanTicksFieldArgumentsElement);
+            element.Add(timeTicksFieldArgumentsElement);
+
+            return element;
+        }
+
         private IEnumerable<DropdownItem<string>> OnGetItems()
         {
             var items = new List<DropdownItem<string>>();

Assets/UGF.EditorTools.Editor.Tests/Ids/TestGlobalIdAsset.cs

@@ -8,10 +8,12 @@ namespace UGF.EditorTools.Editor.Tests.Ids
     public class TestGlobalIdAsset : ScriptableObject
     {
         [SerializeField] private GlobalId m_id;
+        [SerializeField] private GlobalId m_id3;
         [AssetId(typeof(Material))]
         [SerializeField] private GlobalId m_id2;
 
         public GlobalId Id { get { return m_id; } set { m_id = value; } }
+        public GlobalId ID3 { get { return m_id3; } set { m_id3 = value; } }
         public GlobalId ID2 { get { return m_id2; } set { m_id2 = value; } }
     }
 }

Assets/UGF.EditorTools.Editor.Tests/UIToolkit/TestDocument.uxml

@@ -0,0 +1,3 @@
+<ui:UXML xmlns:ui="UnityEngine.UIElements" xmlns:uie="UnityEditor.UIElements" editor-extension-mode="False">
+    <Style src="project://database/Packages/com.ugf.editortools/Data.Editor/UGF.EditorTools.Editor.Styles.uss?fileID=7433441132597879392&amp;guid=02fc77c2456fb854f836285bba201e73&amp;type=3#UGF.EditorTools.Editor.Styles" />
+</ui:UXML>

Assets/UGF.EditorTools.Editor.Tests/UIToolkit/TestStylesAsset.asset

@@ -0,0 +1,14 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!114 &11400000
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: eb4564209910452e8e93d94f69c791b9, type: 3}
+  m_Name: TestStylesAsset
+  m_EditorClassIdentifier: