Unity UI ScrollRect Snap To Transform

SnapScrollToTransform.cs

using TMPro;
using UnityEngine;
using UnityEngine.UI;

namespace Plugins.UI.Extensions
{
	public enum XYZ
	{
		X,
		Y,
		Z
	}

	public static class RectTransformExtensions
	{
		private static Vector3[] _cache = new Vector3[4];
		private static Vector3[] _cache2 = new Vector3[4];

		public static void SnapScrollToTransform(this ScrollRect scrollRect, RectTransform target)
		{
			Canvas.ForceUpdateCanvases();

			Vector2 contentPosition = scrollRect.transform.InverseTransformPoint(scrollRect.content.position);
			Vector2 newPosition = scrollRect.transform.InverseTransformPoint(target.position);

			if (scrollRect.vertical)
			{
				if (IsBoundsDimensionMoreThen(scrollRect.viewport, target, XYZ.Y))
				{
					newPosition.y += scrollRect.viewport.rect.size.y * (1 - scrollRect.viewport.pivot.y) * 2;
					newPosition.y -= target.rect.size.y * (1 - target.pivot.y);
				}
				else
				{
					newPosition.y += target.rect.size.y * (1 - target.pivot.y);
				}
			}

			if (scrollRect.horizontal)
			{
				if (IsBoundsDimensionMoreThen(scrollRect.viewport, target, XYZ.X))
				{
					newPosition.x += scrollRect.viewport.rect.size.x * (1 - scrollRect.viewport.pivot.x) * 2;
					newPosition.x -= target.rect.size.x * (1 - target.pivot.x);
				}
				else
				{
					newPosition.x += target.rect.size.x * (1 - target.pivot.x);
				}
			}

			if (!scrollRect.horizontal)
				newPosition.x = contentPosition.x;

			if (!scrollRect.vertical)
				newPosition.y = contentPosition.y;

			scrollRect.content.anchoredPosition = contentPosition - newPosition;
		}

		public static bool IsBoundsDimensionMoreThen(this RectTransform left, RectTransform right, XYZ dimensoin = XYZ.Y)
		{
			left.GetWorldCorners(_cache);
			right.GetWorldCorners(_cache2);

			return _cache[2][(int)dimensoin] > _cache2[2][(int)dimensoin];
		}
	}
}