ui/Runtime/Tabs/TabsController.cs

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

namespace KairoEngine.UI
{
    /// <summary>
    /// The tabs controller creates and controls a set of Tabs. Under the hood it uses a MenuUi component to create and control
    /// the tab buttons.
    /// </summary>
    [HideMonoScript, RequireComponent(typeof(MenuUI))]
    public class TabsController : MonoBehaviour, IClickHandler
    {
        [BoxGroup("Settings")] public MenuUI menuUI;
        [BoxGroup("Settings")] public int currentTab = 0;
        [BoxGroup("Settings")] public bool createOnStart = false;
        [BoxGroup("Settings")] public bool debug = false;
        
        public List<TabData> tabs = new List<TabData>();


        private void Start()
        {
            if(createOnStart) 
            {
                DestroyTabMenu();
                CreateTabMenu();
            }
            else LinkButtons();
        }

        public void OnClick(string id)
        {
            int tabIndex = 0;
            for (int i = 0; i < tabs.Count; i++)
            {
                if(id == tabs[i].id)
                {
                    tabIndex = i;
                    break;
                }
            }
            if(tabIndex != currentTab && tabs[tabIndex].content.activeSelf == false) ChangeToTab(tabIndex);

        }
        public void ChangeToTab(int tabIndex)
        {
            tabs[currentTab].content.SetActive(false);
            tabs[tabIndex].content.SetActive(true);
            UpdateButton(tabs[currentTab].id, false);
            UpdateButton(tabs[tabIndex].id, true);
            currentTab = tabIndex;
            if(debug) Debug.Log("Showing tab " + tabs[currentTab].id);
        }

        [ButtonGroup("Buttons"), Button("Create Tab Menu")]
        public void CreateTabMenu()
        {
            menuUI.DestroyMenu();
            menuUI.buttons.Clear();
            List<string> categories = new List<string>();
            
            for (int i = 0; i < tabs.Count; i++)
            {
                var tab = tabs[i];
                var data = new MenuButtomData();
                data.title = tab.title;
                data.description = tab.description;
                data.action = tab.id;
                data.graphic = tab.icon;
                data.subMenuParent = false;
                data.showTooltip = true;
                data.tooltipType = "";
                menuUI.buttons.Add(data);
            }
            menuUI.CreateMenu();
            OnClick(tabs[currentTab].id);
        }

        [ButtonGroup("Buttons"), Button("Destroy Tab Menu")]
        public void DestroyTabMenu()
        {
            menuUI.DestroyMenu();
            menuUI.buttons.Clear();
            if(tabs[currentTab] == null) return;
            if(tabs[currentTab].content == null) return;
            tabs[currentTab].content.SetActive(false);
        }

        public void UpdateButton(string id, bool activate)
        {
            var btn = menuUI.GetButton(id);
            if(btn != null) 
            {
                TabButton tabButton = btn.GetComponent<TabButton>();
                if(tabButton != null) 
                {
                    if(activate) tabButton.Activate();
                    else tabButton.Deactivate();
                }
                else
                {
                    if(debug) Debug.LogError("Could not find TabButton component in button", btn);
                }
            }
            else
            {
                if(debug) Debug.LogError("Could not find button with id " + id + " in MenuUI", this.gameObject);
            }
        }

        public void LinkButtons()
        {
            for (int i = 0; i < menuUI.buttons.Count; i++)
            {
                if(menuUI.buttons[i].button != null)
                {
                    var clickHandler = menuUI.buttons[i].button.GetComponent<ClickHandler>();
                    if(clickHandler != null) 
                    {
                        clickHandler.receiver = this;
                        clickHandler.title = tabs[i].id;
                    }
                }
            }
            ChangeToTab(currentTab);
        }
    }
}