Merge branch 'awaitablerun-animations' of https://github.com/AvaloniaUI/Avalonia into pr/1774-wip-code-behind-animation-trigger

samples/ControlCatalog/Pages/TextBoxPage.xaml

@@ -9,6 +9,7 @@
               Gap="16">
       <StackPanel Orientation="Vertical" Gap="8">
         <TextBox Text="Lorem ipsum dolor sit amet, consectetur adipiscing elit." Width="200" />
+        <TextBox Watermark="ReadOnly" IsReadOnly="True" Text="This is read only"/>
         <TextBox Width="200" Watermark="Watermark" />
         <TextBox Width="200"
                  Watermark="Floating Watermark"

src/Avalonia.Controls/Presenters/TextPresenter.cs

@@ -189,6 +189,12 @@ namespace Avalonia.Controls.Presenters
                     _caretTimer.Start();
                     InvalidateVisual();
                 }
+                else
+                {
+                    _caretTimer.Start();
+                    InvalidateVisual();
+                    _caretTimer.Stop();
+                }
 
                 if (IsMeasureValid)
                 {

src/Avalonia.Controls/TextBox.cs

@@ -124,7 +124,7 @@ namespace Avalonia.Controls
                 ScrollViewer.HorizontalScrollBarVisibilityProperty,
                 horizontalScrollBarVisibility,
                 BindingPriority.Style);
-            _undoRedoHelper = new UndoRedoHelper<UndoRedoState>(this);            
+            _undoRedoHelper = new UndoRedoHelper<UndoRedoState>(this);
         }
 
         public bool AcceptsReturn
@@ -262,7 +262,7 @@ namespace Avalonia.Controls
 
             if (IsFocused)
             {
-                _presenter.ShowCaret();
+                DecideCaretVisibility();
             }
         }
 
@@ -282,12 +282,20 @@ namespace Avalonia.Controls
             }
             else
             {
-                _presenter?.ShowCaret();
+                DecideCaretVisibility();
             }
 
             e.Handled = true;
         }
 
+        private void DecideCaretVisibility()
+        {
+            if (!IsReadOnly)
+                _presenter?.ShowCaret();
+            else
+                _presenter?.HideCaret();
+        }
+
         protected override void OnLostFocus(RoutedEventArgs e)
         {
             base.OnLostFocus(e);