Added TaskDialog

2024-10-06 21:15:02 +01:00
parent 434c0634e9
commit 9b59add673
13 changed files with 164 additions and 60 deletions
@@ -0,0 +1,61 @@
+using Avalonia.Controls;
+using FluentAvalonia.Core;
+using Toolkit.Foundation;
+using Toolkit.UI.Controls.Avalonia;
+
+namespace Toolkit.Avalonia;
+
+public class TaskDialogHandler(ITopLevelProvider topLevelProvider) :
+    INotificationHandler<NavigateEventArgs<TaskDialog>>
+{
+    public async Task Handle(NavigateEventArgs<TaskDialog> args)
+    {
+        if (args.Template is TaskDialog dialog)
+        {
+            if (topLevelProvider.Get() is TopLevel topLevel)
+            {
+                dialog.XamlRoot = topLevel;
+                dialog.DataContext = args.Content;
+
+                async void HandleClosing(FluentAvalonia.UI.Controls.TaskDialog sender, 
+                    FluentAvalonia.UI.Controls.TaskDialogClosingEventArgs args)
+                {
+                    dialog.Closing -= HandleClosing;
+                    if (dialog.DataContext is object content)
+                    {
+                        bool cancelled = false;
+
+                        if (args.Result is TaskDialogResult result)
+                        {
+                            if (result is TaskDialogResult.OK && content is 
+                                IPrimaryConfirmation primaryConfirmation)
+                            {
+                                Deferral deferral = args.GetDeferral();
+                                if (!await primaryConfirmation.ConfirmPrimary())
+                                {
+                                    args.Cancel = true;
+                                    cancelled = true;
+
+                                    dialog.Closing += HandleClosing;
+                                }
+
+                                deferral.Complete();
+                            }
+                        }
+
+                        if (!cancelled)
+                        {
+                            if (content is IDeactivating deactivating)
+                            {
+                                await deactivating.OnDeactivating();
+                            }
+                        }
+                    }
+                }
+
+                dialog.Closing += HandleClosing;
+                await dialog.ShowAsync();
+            }
+        }
+    }
+}