chore: initial commit

Packages/com.kybernetik.animancer/Editor/Serialization/SerializedComponentDataEditorWindow.cs

@@ -0,0 +1,81 @@
+// Animancer // https://kybernetik.com.au/animancer // Copyright 2018-2026 Kybernetik //
+
+#if UNITY_EDITOR
+
+using System;
+using UnityEditor;
+using UnityEngine;
+
+namespace Animancer.Editor
+{
+    /// <summary>[Editor-Only]
+    /// A <see cref="SerializedDataEditorWindow{TObject, TData}"/> for <see cref="Component"/>s.
+    /// </summary>
+    /// https://kybernetik.com.au/animancer/api/Animancer.Editor/SerializedComponentDataEditorWindow_2
+    public abstract class SerializedComponentDataEditorWindow<TObject, TData> :
+        SerializedDataEditorWindow<TObject, TData>
+        where TObject : Component
+        where TData : class, ICopyable<TData>, IEquatable<TData>, new()
+    {
+        /************************************************************************************************************************/
+
+        [SerializeField] private GameObject _SourceGameObject;
+        [SerializeField] private int _SourceComponentInstanceID;
+
+        /************************************************************************************************************************/
+
+        /// <inheritdoc/>
+        public override TObject SourceObject
+        {
+            get
+            {
+                // For whatever reason, component references in an EditorWindow can't survive entering Play Mode but
+                // a GameObject or Transform reference can so we use that to recover the component.
+
+                // Storing the Instance ID also works, but seems to also survive restarting the Unity Editor which is
+                // bad because the scene references inside the data don't survive that which would leave us
+                // with an open window full of empty references. Working around that isn't worth the effort.
+
+                // So if the GameObject still exists, we use the Component's Instance ID to find it.
+
+                var source = base.SourceObject;
+
+                if (source == null && _SourceGameObject != null)
+                {
+#if UNITY_6000_3_OR_NEWER
+                    var component = EditorUtility.EntityIdToObject(_SourceComponentInstanceID);
+#else
+                    var component = EditorUtility.InstanceIDToObject(_SourceComponentInstanceID);
+#endif
+                    source = base.SourceObject = component as TObject;
+                }
+
+                return source;
+            }
+        }
+
+        /************************************************************************************************************************/
+
+        /// <inheritdoc/>
+        public override bool SourceObjectMightBePrefab
+            => true;
+
+        /************************************************************************************************************************/
+
+        /// <inheritdoc/>
+        protected override void CaptureData()
+        {
+            base.CaptureData();
+
+            if (SourceObject != null)
+            {
+                _SourceGameObject = SourceObject.gameObject;
+                _SourceComponentInstanceID = SourceObject.GetInstanceID();
+            }
+        }
+
+        /************************************************************************************************************************/
+    }
+}
+
+#endif