Add OnValueChanged attribute

Editor/TriProperty.cs

@@ -277,6 +277,17 @@ namespace TriInspector
 
         void ITriPropertyParent.NotifyValueChanged(TriProperty property)
         {
+            if (_definition.OnValueChanged != null)
+            {
+                _serializedProperty?.serializedObject.ApplyModifiedProperties();
+
+                for (var targetIndex = 0; targetIndex < PropertyTree.TargetObjects.Length; targetIndex++)
+                {
+                    _definition.OnValueChanged.InvokeForTarget(this, targetIndex);
+                    EditorUtility.SetDirty(PropertyTree.TargetObjects[targetIndex]);
+                }
+            }
+
             _parent.NotifyValueChanged(property);
         }
 

Editor/TriPropertyDefinition.cs

@@ -4,6 +4,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
 using JetBrains.Annotations;
+using TriInspector.Resolvers;
 using TriInspector.Utilities;
 using UnityEngine;
 
@@ -62,6 +63,11 @@ namespace TriInspector
                 IsArray = true;
                 ArrayElementType = elementType;
             }
+
+            if (Attributes.TryGet(out OnValueChangedAttribute onValueChangedAttribute))
+            {
+                OnValueChanged = ActionResolver.Resolve(this, onValueChangedAttribute.Method);
+            }
         }
 
         public MemberInfo MemberInfo { get; }
@@ -81,6 +87,8 @@ namespace TriInspector
 
         public bool IsArray { get; }
 
+        [CanBeNull] public ActionResolver OnValueChanged { get; }
+
         public IReadOnlyList<TriPropertyHideProcessor> HideProcessors
         {
             get

README.md

@@ -19,6 +19,7 @@ public class BasicSample : MonoBehaviour
     public float unityField;
     
     [Required]
+    [OnValueChanged(nameof(OnMaterialChanged))]
     public Material mat;
     
     [ValidateInput(nameof(ValidateTexture))]
@@ -61,6 +62,11 @@ public class BasicSample : MonoBehaviour
         public float rotation;
     }
     
+    private void OnMaterialChanged()
+    {
+        Debug.Log("Material changed!");
+    }
+    
     private TriValidationResult ValidateTexture()
     {
         if (tex == null) return TriValidationResult.Error("Tex is null");

Runtime/Attributes/OnValueChangedAttribute.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Diagnostics;
+
+namespace TriInspector
+{
+    [AttributeUsage(AttributeTargets.Field | AttributeTargets.Property)]
+    [Conditional("UNITY_EDITOR")]
+    public sealed class OnValueChangedAttribute : Attribute
+    {
+        public OnValueChangedAttribute(string method)
+        {
+            Method = method;
+        }
+
+        public string Method { get; }
+    }
+}

Runtime/Attributes/OnValueChangedAttribute.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: ae1fa081898a4d13b8612da57bc9a349
+timeCreated: 1652265504