Added the guided chat to the BeyondFacts Lab (#1177)

app/MindWork AI Studio/Settings/DataModel/SendBehaviorExtensions.cs

@@ -0,0 +1,36 @@
+using Microsoft.AspNetCore.Components.Web;
+
+namespace AIStudio.Settings.DataModel;
+
+public static class SendBehaviorExtensions
+{
+    /// <param name="behavior">The shortcut the person chose for sending.</param>
+    extension(SendBehavior behavior)
+    {
+        /// <summary>
+        /// Checks whether a key released in a message field sends the message.
+        /// </summary>
+        /// <remarks>
+        /// Every message field of the app reads the keys this way, so that the shortcut chosen for the chat holds
+        /// wherever the person writes to a model.
+        /// </remarks>
+        /// <param name="keyEvent">The key released.</param>
+        /// <returns>True when the key sends the message.</returns>
+        public bool IsSendShortcut(KeyboardEventArgs keyEvent)
+        {
+            // Either enter or numpad enter:
+            var key = keyEvent.Code.ToLowerInvariant();
+            if (key is not ("enter" or "numpadenter"))
+                return false;
+
+            var isModifier = keyEvent.AltKey || keyEvent.CtrlKey || keyEvent.MetaKey || keyEvent.ShiftKey;
+            return behavior switch
+            {
+                SendBehavior.ENTER_IS_SENDING => !isModifier,
+                SendBehavior.MODIFER_ENTER_IS_SENDING => isModifier,
+
+                _ => false
+            };
+        }
+    }
+}