fix #234: port retail appraisal floaty and inscriptions

tests/AcDream.App.Tests/UI/UiFieldTests.cs

@@ -94,4 +94,52 @@ public class UiFieldTests
 
         Assert.Equal("5", input.Text);
     }
+
+    [Fact]
+    public void ReadOnlyField_RejectsMutationsButReportsClick()
+    {
+        int clicks = 0;
+        var input = new UiField
+        {
+            Editable = false,
+            OnReadOnlyClick = () => clicks++,
+        };
+        input.SetText("fixed");
+
+        input.InsertChar('!');
+        input.Backspace();
+        input.OnEvent(new UiEvent(0u, input, UiEventType.Click));
+
+        Assert.Equal("fixed", input.Text);
+        Assert.Equal(1, clicks);
+        Assert.False(input.AcceptsFocus);
+        Assert.False(input.IsEditControl);
+    }
+
+    [Fact]
+    public void MultiLineField_EnterAddsNewlineInsteadOfSubmitting()
+    {
+        int submissions = 0;
+        var input = new UiField
+        {
+            OneLine = false,
+            OnSubmit = _ => submissions++,
+        };
+        input.InsertChar('a');
+
+        input.OnEvent(new UiEvent(
+            0u,
+            input,
+            UiEventType.KeyDown,
+            Data0: (int)Silk.NET.Input.Key.Enter));
+        input.OnEvent(new UiEvent(
+            0u,
+            input,
+            UiEventType.Char,
+            Data0: '\r'));
+        input.InsertChar('b');
+
+        Assert.Equal("a\nb", input.Text);
+        Assert.Equal(0, submissions);
+    }
 }