Add in-built editors for DateTime and TimeSpan

Source/Editor/CustomEditors/Editors/TimeSpanEditor.cs

@@ -0,0 +1,90 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+using FlaxEngine;
+using FlaxEngine.GUI;
+using System;
+
+namespace FlaxEditor.CustomEditors.Editors
+{
+    /// <summary>
+    /// Default implementation of the inspector used to edit TimeSpan value type properties.
+    /// </summary>
+    [CustomEditor(typeof(TimeSpan)), DefaultEditor]
+    class TimeSpanEditor : CustomEditor
+    {
+        private TextBox _textBox;
+        private bool _isRefreshing;
+
+        /// <inheritdoc />
+        public override DisplayStyle Style => DisplayStyle.Inline;
+
+        /// <inheritdoc />
+        public override void Initialize(LayoutElementsContainer layout)
+        {
+            if (HasDifferentTypes)
+                return;
+
+            _textBox = layout.Custom<TextBox>().CustomControl;
+            _textBox.EditEnd += OnEditEnd;
+        }
+
+        private void OnEditEnd()
+        {
+            if (_isRefreshing)
+                return;
+            if (TimeSpan.TryParse(_textBox.Text, out var timeSpan))
+                SetValue(timeSpan);
+        }
+
+        /// <inheritdoc />
+        public override void Refresh()
+        {
+            base.Refresh();
+
+            _isRefreshing = true;
+            _textBox.Text = HasDifferentValues ? "Multiple Values" : ((TimeSpan)Values[0]).ToString("g");
+            _isRefreshing = false;
+        }
+    }
+
+    /// <summary>
+    /// Default implementation of the inspector used to edit DateTime value type properties.
+    /// </summary>
+    [CustomEditor(typeof(DateTime)), DefaultEditor]
+    class DateTimeEditor : CustomEditor
+    {
+        private TextBox _textBox;
+        private bool _isRefreshing;
+
+        /// <inheritdoc />
+        public override DisplayStyle Style => DisplayStyle.Inline;
+
+        /// <inheritdoc />
+        public override void Initialize(LayoutElementsContainer layout)
+        {
+            if (HasDifferentTypes)
+                return;
+
+            _textBox = layout.Custom<TextBox>().CustomControl;
+            _textBox.EditEnd += OnEditEnd;
+        }
+
+        private void OnEditEnd()
+        {
+            if (_isRefreshing)
+                return;
+            if (DateTime.TryParse(_textBox.Text, out var timeSpan))
+                SetValue(timeSpan);
+        }
+
+        /// <inheritdoc />
+        public override void Refresh()
+        {
+            base.Refresh();
+
+            _isRefreshing = true;
+            _textBox.Text = HasDifferentValues ? "Multiple Values" : ((DateTime)Values[0]).ToString("g");
+            _isRefreshing = false;
+        }
+    }
+}