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snakeinabox/Assets/NaughtyAttributes/Scripts/Editor/PropertyMetas/OnValueChangedPropertyMeta.cs
2020-07-09 11:41:01 -07:00

31 lines
1.3 KiB
C#

using System.Reflection;
using UnityEditor;
using UnityEngine;
namespace NaughtyAttributes.Editor
{
[PropertyMeta(typeof(OnValueChangedAttribute))]
public class OnValueChangedPropertyMeta : PropertyMeta
{
public override void ApplyPropertyMeta(SerializedProperty property, MetaAttribute metaAttribute)
{
OnValueChangedAttribute onValueChangedAttribute = (OnValueChangedAttribute)metaAttribute;
UnityEngine.Object target = PropertyUtility.GetTargetObject(property);
MethodInfo callbackMethod = ReflectionUtility.GetMethod(target, onValueChangedAttribute.CallbackName);
if (callbackMethod != null &&
callbackMethod.ReturnType == typeof(void) &&
callbackMethod.GetParameters().Length == 0)
{
property.serializedObject.ApplyModifiedProperties(); // We must apply modifications so that the callback can be invoked with up-to-date data
callbackMethod.Invoke(target, null);
}
else
{
string warning = onValueChangedAttribute.GetType().Name + " can invoke only action methods - with void return type and no parameters";
Debug.LogWarning(warning, target);
}
}
}
}