Container cleanups.

2025-10-27 01:00:38 +01:00
parent d9fc365aeb
commit 54ac07f6fb
5 changed files with 60 additions and 24 deletions
@@ -8,11 +8,12 @@ namespace Wino.Mail.WinUI.Controls.ListView;

 public partial class WinoMailItemViewModelListViewItem : ListViewItem
 {
+    private readonly long _selectionChangeCallbackToken;
    public WinoMailItemViewModelListViewItem()
    {
        DefaultStyleKey = typeof(WinoMailItemViewModelListViewItem);

-        RegisterPropertyChangedCallback(IsSelectedProperty, OnIsSelectedChanged);
+        _selectionChangeCallbackToken = RegisterPropertyChangedCallback(IsSelectedProperty, OnIsSelectedChanged);
    }

    protected override void OnContentChanged(object oldContent, object newContent)
@@ -31,6 +32,16 @@ public partial class WinoMailItemViewModelListViewItem : ListViewItem
        }
    }

+    public void Cleanup()
+    {
+        if (Content is MailItemViewModel mailItem)
+        {
+            UnregisterSelectionCallback(mailItem);
+
+            UnregisterPropertyChangedCallback(IsSelectedProperty, _selectionChangeCallbackToken);
+        }
+    }
+
    private void UnregisterSelectionCallback(IMailListItem mailItem)
    {
        mailItem.PropertyChanged -= MailPropChanged;