Insanely huge initial commit

Assets/Extensions/Modern UI Pack/Scripts/Tools/ElementTabbing.cs

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+using UnityEngine;
+using UnityEngine.EventSystems;
+#if ENABLE_INPUT_SYSTEM
+using UnityEngine.InputSystem;
+#endif
+
+namespace Michsky.MUIP
+{
+    [AddComponentMenu("Modern UI Pack/Tools/Element Tabbing")]
+    public class ElementTabbing : MonoBehaviour
+    {
+        // Helpers
+        int currentIndex = -1;
+        bool catchedObject = false;
+        ObjectType type;
+
+        public enum ObjectType { Button, InputField }
+
+        void Update()
+        {
+#if ENABLE_LEGACY_INPUT_MANAGER
+            if (Input.GetKeyDown(KeyCode.Tab))
+#elif ENABLE_INPUT_SYSTEM
+            if (Keyboard.current.tabKey.wasPressedThisFrame)
+#endif
+            {
+                if (currentIndex > transform.childCount - 2) { SelectElement(0); return; }
+                else if (catchedObject && type == ObjectType.Button) { transform.GetChild(currentIndex).GetComponent<ButtonManager>().OnDeselect(null); }
+                else if (catchedObject && type == ObjectType.InputField) { transform.GetChild(currentIndex).GetComponent<CustomInputField>().inputText.DeactivateInputField(); }
+
+                currentIndex++;
+
+                for (int i = 0; i < transform.childCount; ++i)
+                {
+                    if (i < currentIndex)
+                        continue;
+
+                    if (transform.GetChild(i).GetComponent<ButtonManager>() != null)
+                    {
+                        transform.GetChild(i).GetComponent<ButtonManager>().OnSelect(null);
+                        EventSystem.current.SetSelectedGameObject(transform.GetChild(i).gameObject);
+                        type = ObjectType.Button;
+                        break;
+                    }
+
+                    else if (transform.GetChild(i).GetComponent<CustomInputField>() != null)
+                    {
+                        transform.GetChild(i).GetComponent<CustomInputField>().inputText.ActivateInputField();
+                        EventSystem.current.SetSelectedGameObject(transform.GetChild(i).gameObject);
+                        type = ObjectType.InputField;
+                        break;
+                    }
+
+                    else
+                    {
+                        catchedObject = false;
+                    }
+                }
+            }
+        }
+
+        void SelectElement(int index)
+        {
+            currentIndex = index;
+
+            if (transform.GetChild(index).GetComponent<ButtonManager>() != null)
+            {
+                transform.GetChild(index).GetComponent<ButtonManager>().OnSelect(null);
+                EventSystem.current.SetSelectedGameObject(transform.GetChild(index).gameObject);
+                type = ObjectType.Button;
+            }
+
+            else if (transform.GetChild(index).GetComponent<CustomInputField>() != null)
+            {
+                transform.GetChild(index).GetComponent<CustomInputField>().inputText.ActivateInputField();
+                EventSystem.current.SetSelectedGameObject(transform.GetChild(index).gameObject);
+                type = ObjectType.InputField;
+            }
+
+            else
+            {
+                catchedObject = false;
+            }
+        }
+    }
+}

Assets/Extensions/Modern UI Pack/Scripts/Tools/ElementTabbing.cs.meta

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