Unity UI Extension: Set OnClick handler for GameObject

using System;
using UnityEngine;
using UnityEngine.EventSystems;

//Example:
// GameObject _btnPlay; // set anywhere
// ...
// _btnPlay.SetOnClick((sender)=>{ Debug.Log(sender.name); });
//
public static class UnityUIExtensions
{
    public static void SetOnClick(this GameObject go, Action<GameObject> handler)
    {
        var eventHandler = go.GetComponent<EventTrigger>();

        if(eventHandler == null)
            eventHandler = go.AddComponent<EventTrigger>();

        EventTrigger.Entry entry = new EventTrigger.Entry();
        entry.eventID = EventTriggerType.PointerClick;
        entry.callback.AddListener( (eventData) => { handler(go); } );
        eventHandler.triggers.Add(entry);
    }
}