UIWindowHelper: Focus Window on title click

UIWindowHelper.cs

Create new UIWindowHelper.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class UIWindowHelper : MonoBehaviour {

    public static void bringToFront(Transform window)
    {
        RectTransform theRectTransform = window.transform as RectTransform; // Cast it to RectTransform
        theRectTransform.SetAsLastSibling(); // Make the panel show on top.
    }
}

Open UIWindow.cs

a) Add "IPointerClickHandler" Interface to the class definition
b) Add "UIWindowHelper.bringToFront(transform.parent.transform.parent);" in OnBeginDrag() method before HandleDrag method
c) Add new method:

    public void OnPointerClick(PointerEventData d)
    {
        UIWindowHelper.bringToFront(transform.parent.transform.parent);
    }

Now, if you click a window title, it will come to front. Easy and fast.

Tipp: Add this method if ummorpg opens a window to bring it to the front (see UIShortcuts.cs).

For some UI (like NPCTRading) you have to rearrange the UI in the Inspector. It will be used a parent container like in Inventory. This is "Inventory -> InventoryPanel", but in some UI it is only "NpcTrading", so that the code "transform.parent.transform.parent" does not work. But i think you get the idea.