MinMaxRangeSliderAttribute.cs

using System;
using UnityEngine;
using System.Diagnostics;

#if UNITY_EDITOR
using Sirenix.OdinInspector.Editor;
using Sirenix.OdinInspector.Editor.ActionResolvers;
using Sirenix.OdinInspector.Editor.ValueResolvers;
using Sirenix.Utilities.Editor;
using NamedValue = Sirenix.OdinInspector.Editor.ActionResolvers.NamedValue;
#endif

[Conditional("UNITY_EDITOR")]
[AttributeUsage(AttributeTargets.All, AllowMultiple = false, Inherited = true)]
public class MinMaxRangeSliderAttribute : Attribute
{
    public readonly string Limits;
    public readonly string Getter;
    public readonly string Setter;
    public readonly bool ShowFields;

    public MinMaxRangeSliderAttribute(
        string getter, string setter, string limits, bool showFields = false)
    {
        Getter = getter;
        Setter = setter;
        Limits = limits;
        ShowFields = showFields;
    }
}

#if UNITY_EDITOR
public class MinMaxRangeSliderAttributeDrawer
    : OdinAttributeDrawer<MinMaxRangeSliderAttribute, Range>
{
    private ValueResolver<Vector2> limitsResolver;
    private ValueResolver<Vector2> getterResolver;
    private ActionResolver setterResolver;

    protected override void Initialize()
    {
        limitsResolver = ValueResolver.Get<Vector2>(Property, Attribute.Limits);
        getterResolver = ValueResolver.Get<Vector2>(Property, Attribute.Getter);

        var namedValue = new NamedValue("value", typeof(Vector2));
        setterResolver = ActionResolver.Get(Property, Attribute.Setter, namedValue);
    }

    protected override void DrawPropertyLayout(GUIContent label)
    {
        ValueResolver.DrawErrors(limitsResolver, getterResolver, setterResolver);

        var limits = limitsResolver.GetValue();
        var value = getterResolver.GetValue();

        var newValue = SirenixEditorFields.MinMaxSlider(
            label, value, limits, Attribute.ShowFields);

        setterResolver.Context.NamedValues.Set("value", newValue);
        setterResolver.DoActionForAllSelectionIndices();
    }
}
#endif