Editor stuff

Assets/Plugins/com.unity.uiextensions/Runtime/Scripts/Utilities/InputFieldEnterSubmit.cs

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+/// Credit Vicente Russo  
+/// Sourced from - https://bitbucket.org/SimonDarksideJ/unity-ui-extensions/issues/23/returnkeytriggersbutton
+
+using UnityEngine.Events;
+
+namespace UnityEngine.UI.Extensions
+{
+    /// <summary>
+    /// Usage: Add this component to the input and add the function to execute to the EnterSubmit event of this script
+    /// </summary>
+    [RequireComponent(typeof(InputField))]
+    [AddComponentMenu("UI/Extensions/Input Field Submit")]
+    public class InputFieldEnterSubmit : MonoBehaviour
+    {
+        [System.Serializable]
+        public class EnterSubmitEvent : UnityEvent<string>
+        {
+
+        }
+
+        public EnterSubmitEvent EnterSubmit;
+        public bool defocusInput = true;
+        private InputField _input;
+
+        void Awake()
+        {
+            _input = GetComponent<InputField>();
+            _input.onEndEdit.AddListener(OnEndEdit);
+        }
+
+        public void OnEndEdit(string txt)
+        {
+            if (!UIExtensionsInputManager.GetKeyDown(KeyCode.Return) && !UIExtensionsInputManager.GetKeyDown(KeyCode.KeypadEnter))
+                return;
+            EnterSubmit.Invoke(txt);
+            if (defocusInput)
+            {
+                UnityEngine.EventSystems.EventSystem.current.SetSelectedGameObject(null);
+            }
+        }
+    }
+}