56 lines
1.7 KiB
C#
56 lines
1.7 KiB
C#
using UnityEngine;
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#if UNITY_EDITOR
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using UnityEditor;
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#endif
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using System.Reflection;
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namespace Obi{
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[System.AttributeUsage(System.AttributeTargets.Field)]
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public class VisibleIf : MultiPropertyAttribute
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{
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public string MethodName { get; private set; }
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public bool Negate {get; private set;}
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private MethodInfo eventMethodInfo = null;
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private FieldInfo fieldInfo = null;
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public VisibleIf(string methodName, bool negate = false)
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{
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this.MethodName = methodName;
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this.Negate = negate;
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}
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#if UNITY_EDITOR
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internal override bool IsVisible(SerializedProperty property)
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{
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return Visibility(property) == !Negate;
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}
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private bool Visibility(SerializedProperty property)
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{
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System.Type eventOwnerType = property.serializedObject.targetObject.GetType();
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string eventName = MethodName;
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// Try finding a method with the name provided:
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if (eventMethodInfo == null)
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eventMethodInfo = eventOwnerType.GetMethod(eventName, BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic);
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// If we could not find a method with that name, look for a field:
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if (eventMethodInfo == null && fieldInfo == null)
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fieldInfo = eventOwnerType.GetField(eventName, BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic);
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if (eventMethodInfo != null)
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return (bool)eventMethodInfo.Invoke(property.serializedObject.targetObject, null);
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else if (fieldInfo != null)
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return (bool)fieldInfo.GetValue(property.serializedObject.targetObject);
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else
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Debug.LogWarning(string.Format("VisibleIf: Unable to find method or field {0} in {1}", eventName, eventOwnerType));
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return true;
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}
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#endif
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}
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} |