VR UI issue

Unity Engine
1

I have my user interface set up in a world space canvas. When I start the game up, one of the buttons is highlighted and I can use the arrow keys to cycle through the buttons and select the option that I want. The problem is that if the mouse clicks somewhere in the screen, the UI loses its focus. Is there someway that I can disable mouse input or make sure that the UI on my world space canvas is always selected?

2

I found a solution if anyone is interested. I wrote a script that selects a button if none are selected:

using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;


public class selectButtons : MonoBehaviour {
    public Button button;
    public GameObject[] buttons;
    private int activatedButtons;

    // Use this for initialization
    void Start ()
    {
        button.Select();
    }
   
    // Update is called once per frame
    void Update ()
    {
        activatedButtons = 0;
        foreach (GameObject i in buttons)
        {
            if(i == EventSystem.current.currentSelectedGameObject)
                activatedButtons += 1;
               
        }

       
        if (activatedButtons < 1)
            button.Select();
    }
}