feat: initialize control.

src/Ursa.Themes.Semi/Controls/KeyGestureInput.axaml

@@ -0,0 +1,26 @@
+<ResourceDictionary
+    xmlns="https://github.com/avaloniaui"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:converters="using:Avalonia.Controls.Converters"
+    xmlns:u="https://irihi.tech/ursa">
+    <!--  Add Resources Here  -->
+    <converters:PlatformKeyGestureConverter x:Key="KeyGestureConverter" />
+
+    <ControlTheme x:Key="{x:Type u:KeyGestureInput}" TargetType="u:KeyGestureInput">
+        <Setter Property="Template">
+            <ControlTemplate TargetType="u:KeyGestureInput">
+                <Border
+                    Name="Background"
+                    Width="100"
+                    MinHeight="32"
+                    Background="LightBlue"
+                    BorderThickness="1">
+                    <TextBlock Text="{TemplateBinding Gesture, Converter={StaticResource KeyGestureConverter}}" />
+                </Border>
+            </ControlTemplate>
+        </Setter>
+        <Style Selector="^:focus-within /template/ Border#Background">
+            <Setter Property="BorderBrush" Value="Blue" />
+        </Style>
+    </ControlTheme>
+</ResourceDictionary>

src/Ursa.Themes.Semi/Controls/_index.axaml

@@ -6,6 +6,7 @@
         <ResourceInclude Source="ButtonGroup.axaml" />
         <ResourceInclude Source="Divider.axaml" />
         <ResourceInclude Source="IPv4Box.axaml" />
+        <ResourceInclude Source="KeyGestureInput.axaml" />
         <ResourceInclude Source="Loading.axaml" />
         <ResourceInclude Source="Navigation.axaml" />
         <ResourceInclude Source="Pagination.axaml" />

src/Ursa/Controls/KeyGestureInput.cs

@@ -0,0 +1,83 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.Converters;
+using Avalonia.Controls.Primitives;
+using Avalonia.Input;
+
+namespace Ursa.Controls;
+
+public class KeyGestureInput: TemplatedControl
+{
+    static KeyGestureInput()
+    {
+        InputElement.FocusableProperty.OverrideDefaultValue<KeyGestureInput>(true);
+    }
+    
+    public static readonly StyledProperty<KeyGesture> GestureProperty = AvaloniaProperty.Register<KeyGestureInput, KeyGesture>(
+        nameof(Gesture));
+
+    public KeyGesture Gesture
+    {
+        get => GetValue(GestureProperty);
+        set => SetValue(GestureProperty, value);
+    }
+
+    public static readonly StyledProperty<IList<Key>> AcceptableKeysProperty = AvaloniaProperty.Register<KeyGestureInput, IList<Key>>(
+        nameof(AcceptableKeys));
+
+    public IList<Key> AcceptableKeys
+    {
+        get => GetValue(AcceptableKeysProperty);
+        set => SetValue(AcceptableKeysProperty, value);
+    }
+
+    public static readonly StyledProperty<bool> ConsiderKeyModifiersProperty = AvaloniaProperty.Register<KeyGestureInput, bool>(
+        nameof(ConsiderKeyModifiers));
+
+    public bool ConsiderKeyModifiers
+    {
+        get => GetValue(ConsiderKeyModifiersProperty);
+        set => SetValue(ConsiderKeyModifiersProperty, value);
+    }
+
+    protected override void OnKeyDown(KeyEventArgs e)
+    {
+        // base.OnKeyDown(e);
+        if (!AcceptableKeys.Contains(e.Key))
+        {
+            return;
+        }
+
+        if (!ConsiderKeyModifiers)
+        {
+            if(e.Key == Key.LeftCtrl || e.Key == Key.RightCtrl || e.Key == Key.LeftAlt || e.Key == Key.RightAlt || e.Key == Key.LeftShift || e.Key == Key.RightShift || e.Key == Key.LWin || e.Key == Key.RWin)
+            {
+                return;
+            }
+            Gesture = new KeyGesture(e.Key);
+        }
+        KeyGesture gesture;
+        if (e.KeyModifiers == KeyModifiers.Control && (e.Key == Key.LeftCtrl || e.Key == Key.RightCtrl))
+        {
+            gesture = new KeyGesture(e.Key);
+        }
+        else if (e.KeyModifiers == KeyModifiers.Alt && (e.Key == Key.LeftAlt || e.Key == Key.RightAlt))
+        {
+            gesture = new KeyGesture(e.Key);
+        }
+        else if (e.KeyModifiers == KeyModifiers.Shift && (e.Key == Key.LeftShift || e.Key == Key.RightShift))
+        {
+            gesture = new KeyGesture(e.Key);
+        }
+        else if (e.KeyModifiers == KeyModifiers.Meta && (e.Key == Key.LWin || e.Key == Key.RWin))
+        {
+            gesture = new KeyGesture(e.Key);
+        }
+        else
+        {
+            gesture = new KeyGesture(e.Key, e.KeyModifiers);
+        }
+        Gesture = gesture;
+        e.Handled = true;
+    }
+}