using Microsoft.UI.Xaml; using Microsoft.UI.Xaml.Controls; using Wino.Mail.WinUI.Models.Personalization; namespace Wino.Mail.WinUI.Selectors; public partial class AppThemePreviewTemplateSelector : DataTemplateSelector { public DataTemplate SystemThemeTemplate { get; set; } = null!; public DataTemplate PreDefinedThemeTemplate { get; set; } = null!; public DataTemplate CustomAppTemplate { get; set; } = null!; protected override DataTemplate SelectTemplateCore(object item) { if (item is SystemAppTheme) return SystemThemeTemplate; else if (item is PreDefinedAppTheme) return PreDefinedThemeTemplate; else if (item is CustomAppTheme) return CustomAppTemplate; return base.SelectTemplateCore(item) ?? SystemThemeTemplate; } }