ui/Runtime/Tooltips/Tooltip.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;
using KairoEngine.UI;
using Sirenix.OdinInspector;

namespace KairoEngine.UI.Tooltips
{
    [HideMonoScript, ExecuteInEditMode()]
    public class Tooltip : MonoBehaviour
    {
        public TextMeshProUGUI headerField;
        public TextMeshProUGUI contentField;
        public LayoutElement layoutElement;
        public RectTransform rectTransform;
        public int characterWrapLimit;
        public Vector2 positionOffset = new Vector2(10, 10);
        public string header = "";

        private void Awake()
        {
            if(rectTransform == null) rectTransform = GetComponent<RectTransform>();
        }


        private void Update()
        {
            if(headerField == null || contentField == null || layoutElement == null || rectTransform == null) return;
            if(Application.isEditor) UpdateLayout();
            Vector2 position = Input.mousePosition;
            // Todo: Position tooltip left/right/up/donw the mouse pointer dependending on size and screen position.
            float pivotX = position.x / Screen.width;
            float pivotY = position.y / Screen.height;
            rectTransform.pivot = new Vector2(pivotX, pivotY);
            position += positionOffset;
            transform.position = position;
        }

        public void SetText(string content, string header = "")
        {
            if(string.IsNullOrEmpty(header)) headerField.gameObject.SetActive(false);
            else 
            {
                this.header = header;
                headerField.text = header;
                headerField.gameObject.SetActive(true);
            }
            contentField.text = content;
            UpdateLayout();
        }

        public void UpdateLayout()
        {
            
            int headerLength = headerField.text.Length;
            int contentLength = contentField.text.Length;

            layoutElement.enabled = (headerLength > characterWrapLimit || contentLength > characterWrapLimit) ? true : false;
        }
    }
}