feat(ui): add reusable ModalShell control

2026-05-30 16:38:02 +02:00
parent 16b0d1177a
commit c20fbe3613
3 changed files with 82 additions and 0 deletions
@@ -0,0 +1,38 @@
+using System;
+using System.Windows.Input;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.Primitives;
+using Avalonia.Input;
+
+namespace ClaudeDo.Ui.Views.Controls;
+
+/// <summary>Reusable modal chrome: titlebar (drag + close) wrapping a body and optional footer.</summary>
+public class ModalShell : ContentControl
+{
+    public static readonly StyledProperty<string?> TitleProperty =
+        AvaloniaProperty.Register<ModalShell, string?>(nameof(Title));
+
+    public static readonly StyledProperty<object?> FooterProperty =
+        AvaloniaProperty.Register<ModalShell, object?>(nameof(Footer));
+
+    public static readonly StyledProperty<ICommand?> CloseCommandProperty =
+        AvaloniaProperty.Register<ModalShell, ICommand?>(nameof(CloseCommand));
+
+    public string? Title { get => GetValue(TitleProperty); set => SetValue(TitleProperty, value); }
+    public object? Footer { get => GetValue(FooterProperty); set => SetValue(FooterProperty, value); }
+    public ICommand? CloseCommand { get => GetValue(CloseCommandProperty); set => SetValue(CloseCommandProperty, value); }
+
+    protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
+    {
+        base.OnApplyTemplate(e);
+        if (e.NameScope.Find<Border>("PART_TitleBar") is { } bar)
+            bar.PointerPressed += OnTitleBarPressed;
+    }
+
+    private void OnTitleBarPressed(object? sender, PointerPressedEventArgs e)
+    {
+        if (e.GetCurrentPoint(this).Properties.IsLeftButtonPressed && VisualRoot is Window w)
+            w.BeginMoveDrag(e);
+    }
+}