using UnityEngine;

namespace UIWidgets
{
	public class TreeViewComponent : TreeViewComponentBase<TreeViewItem>
	{
		private TreeViewItem item;

		public TreeViewItem Item
		{
			get
			{
				return item;
			}
			set
			{
				if (item != null)
				{
					item.OnChange -= UpdateView;
				}
				item = value;
				if (item != null)
				{
					item.OnChange += UpdateView;
				}
				UpdateView();
			}
		}

		public override void SetData(TreeNode<TreeViewItem> newNode, int depth)
		{
			base.Node = newNode;
			base.SetData(base.Node, depth);
			Item = ((!(base.Node == null)) ? base.Node.Item : null);
		}

		protected virtual void UpdateView()
		{
			if (!(Icon == null) && !(Text == null))
			{
				if (Item == null)
				{
					Icon.sprite = null;
					Text.text = string.Empty;
				}
				else
				{
					Icon.sprite = Item.Icon;
					Text.text = Item.LocalizedName ?? Item.Name;
				}
				if (SetNativeSize)
				{
					Icon.SetNativeSize();
				}
				Icon.color = ((!(Icon.sprite == null)) ? Color.white : Color.clear);
			}
		}

		public override void MovedToCache()
		{
			if (Icon != null)
			{
				Icon.sprite = null;
			}
		}

		protected override void OnDestroy()
		{
			if (item != null)
			{
				item.OnChange -= UpdateView;
			}
			base.OnDestroy();
		}
	}
}