feat: add popconfirm.

src/Ursa/Controls/PopConfirm/PopConfirm.cs

@@ -0,0 +1,125 @@
+using System.Windows.Input;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.Presenters;
+using Avalonia.Controls.Primitives;
+using Avalonia.Controls.Templates;
+
+namespace Ursa.Controls;
+
+public class PopConfirm: ContentControl
+{
+    public static readonly StyledProperty<object?> PopupHeaderProperty = AvaloniaProperty.Register<PopConfirm, object?>(
+        nameof(PopupHeader));
+
+    public object? PopupHeader
+    {
+        get => GetValue(PopupHeaderProperty);
+        set => SetValue(PopupHeaderProperty, value);
+    }
+
+    public static readonly StyledProperty<IDataTemplate?> PopupHeaderTemplateProperty = AvaloniaProperty.Register<PopConfirm, IDataTemplate?>(
+        nameof(PopupHeaderTemplate));
+
+    public IDataTemplate? PopupHeaderTemplate
+    {
+        get => GetValue(PopupHeaderTemplateProperty);
+        set => SetValue(PopupHeaderTemplateProperty, value);
+    }
+
+    public static readonly StyledProperty<object?> PopupContentProperty = AvaloniaProperty.Register<PopConfirm, object?>(
+        nameof(PopupContent));
+
+    public object? PopupContent
+    {
+        get => GetValue(PopupContentProperty);
+        set => SetValue(PopupContentProperty, value);
+    }
+
+    public static readonly StyledProperty<IDataTemplate?> PopupContentTemplateProperty = AvaloniaProperty.Register<PopConfirm, IDataTemplate?>(
+        nameof(PopupContentTemplate));
+
+    public IDataTemplate? PopupContentTemplate
+    {
+        get => GetValue(PopupContentTemplateProperty);
+        set => SetValue(PopupContentTemplateProperty, value);
+    }
+
+    public static readonly StyledProperty<ICommand?> ConfirmCommandProperty = AvaloniaProperty.Register<PopConfirm, ICommand?>(
+        nameof(ConfirmCommand));
+
+    public ICommand? ConfirmCommand
+    {
+        get => GetValue(ConfirmCommandProperty);
+        set => SetValue(ConfirmCommandProperty, value);
+    }
+
+    public static readonly StyledProperty<ICommand?> CancelCommandProperty = AvaloniaProperty.Register<PopConfirm, ICommand?>(
+        nameof(CancelCommand));
+
+    public ICommand? CancelCommand
+    {
+        get => GetValue(CancelCommandProperty);
+        set => SetValue(CancelCommandProperty, value);
+    }
+
+    public static readonly StyledProperty<object?> ConfirmCommandParameterProperty = AvaloniaProperty.Register<PopConfirm, object?>(
+        nameof(ConfirmCommandParameter));
+
+    public object? ConfirmCommandParameter
+    {
+        get => GetValue(ConfirmCommandParameterProperty);
+        set => SetValue(ConfirmCommandParameterProperty, value);
+    }
+
+    public static readonly StyledProperty<object?> CancelCommandParameterProperty = AvaloniaProperty.Register<PopConfirm, object?>(
+        nameof(CancelCommandParameter));
+
+    public object? CancelCommandParameter
+    {
+        get => GetValue(CancelCommandParameterProperty);
+        set => SetValue(CancelCommandParameterProperty, value);
+    }
+
+    public static readonly StyledProperty<PopConfirmTriggerMode> TriggerModeProperty =
+        AvaloniaProperty.Register<PopConfirm, PopConfirmTriggerMode>(
+            nameof(TriggerMode));
+
+    public PopConfirmTriggerMode TriggerMode
+    {
+        get => GetValue(TriggerModeProperty);
+        set => SetValue(TriggerModeProperty, value);
+    }
+
+    static PopConfirm()
+    {
+        ConfirmCommandProperty.Changed.AddClassHandler<PopConfirm, ICommand?>((popconfirm, args) => popconfirm.OnCommandChanged(args));
+    }
+
+    private void OnCommandChanged(AvaloniaPropertyChangedEventArgs<ICommand?> args)
+    {
+        var newValue = args.GetNewValue<ICommand>();
+        newValue.CanExecuteChanged += (sender, e) =>
+        {
+            if (args.Sender is PopConfirm popconfirm)
+            {
+                var b = newValue.CanExecute(this.ConfirmCommandParameter);
+            }
+        };
+    }
+
+    public PopConfirm()
+    {
+        
+    }
+
+    protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
+    {
+        base.OnApplyTemplate(e);
+    }
+
+    protected override bool RegisterContentPresenter(ContentPresenter presenter)
+    {
+        return base.RegisterContentPresenter(presenter);
+    }
+}

src/Ursa/Controls/PopConfirm/PopConfirmTriggerMode.cs

@@ -0,0 +1,8 @@
+namespace Ursa.Controls;
+
+public enum PopConfirmTriggerMode
+{
+    Tap,
+    Hover,
+    Focus,
+}