feat: start to refactor.

src/Ursa/Controls/Timeline/TimelineItem.cs

@@ -1,101 +1,41 @@
-using System.Globalization;
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Controls.Metadata;
+using Avalonia.Controls.Primitives;
 using Avalonia.Controls.Templates;
 using Avalonia.Data;
 using Avalonia.Media;
 
 namespace Ursa.Controls;
 
-[PseudoClasses(PC_First, PC_Last, PC_Default, PC_Ongoing, PC_Success, PC_Warning, PC_Error, PC_None)]
-public class TimelineItem: ContentControl
+public class TimelineItem: HeaderedContentControl
 {
-    private const string PC_First = ":first";
-    private const string PC_Last = ":last";
-    private const string PC_Default = ":default";
-    private const string PC_Ongoing = ":ongoing";
-    private const string PC_Success = ":success";
-    private const string PC_Warning = ":warning";
-    private const string PC_Error = ":error";
-    private const string PC_None = ":none";
+    public static readonly StyledProperty<object?> IconProperty = AvaloniaProperty.Register<TimelineItem, object?>(
+        nameof(Icon));
 
-    private static readonly IReadOnlyDictionary<TimelineItemType, string> _itemTypeMapping = new Dictionary<TimelineItemType, string>
+    public object? Icon
     {
-        {TimelineItemType.Default, PC_Default},
-        {TimelineItemType.Ongoing, PC_Ongoing},
-        {TimelineItemType.Success, PC_Success},
-        {TimelineItemType.Warning, PC_Warning},
-        {TimelineItemType.Error, PC_Error},
-    };
-
-    public static readonly StyledProperty<IBrush> IconForegroundProperty =
-        AvaloniaProperty.Register<TimelineItem, IBrush>(nameof(IconForeground));
-
-    public IBrush IconForeground
-    {
-        get => GetValue(IconForegroundProperty);
-        set => SetValue(IconForegroundProperty, value);
+        get => GetValue(IconProperty);
+        set => SetValue(IconProperty, value);
     }
 
-    public static readonly StyledProperty<DateTime> TimeProperty = AvaloniaProperty.Register<TimelineItem, DateTime>(
-        nameof(Time));
-    public DateTime Time
+    public static readonly StyledProperty<IDataTemplate?> IconTemplateProperty = AvaloniaProperty.Register<TimelineItem, IDataTemplate?>(
+        nameof(IconTemplate));
+
+    public IDataTemplate? IconTemplate
     {
-        get => GetValue(TimeProperty);
-        set => SetValue(TimeProperty, value);
+        get => GetValue(IconTemplateProperty);
+        set => SetValue(IconTemplateProperty, value);
     }
 
-    public static readonly StyledProperty<string?> TimeFormatProperty = AvaloniaProperty.Register<TimelineItem, string?>(
-        nameof(TimeFormat), defaultValue:CultureInfo.CurrentUICulture.DateTimeFormat.ShortDatePattern);
+    public static readonly StyledProperty<TimelineItemType> TypeProperty = AvaloniaProperty.Register<TimelineItem, TimelineItemType>(
+        nameof(Type));
 
-    public string? TimeFormat
+    public TimelineItemType Type
     {
-        get => GetValue(TimeFormatProperty);
-        set => SetValue(TimeFormatProperty, value);
-    }
-
-    public static readonly StyledProperty<IDataTemplate> DescriptionTemplateProperty = AvaloniaProperty.Register<TimelineItem, IDataTemplate>(
-        nameof(DescriptionTemplate));
-
-    public IDataTemplate DescriptionTemplate
-    {
-        get => GetValue(DescriptionTemplateProperty);
-        set => SetValue(DescriptionTemplateProperty, value);
-    }
-
-    public static readonly StyledProperty<TimelineItemType> ItemTypeProperty = AvaloniaProperty.Register<TimelineItem, TimelineItemType>(
-        nameof(ItemType));
-
-    public TimelineItemType ItemType
-    {
-        get => GetValue(ItemTypeProperty);
-        set => SetValue(ItemTypeProperty, value);
-    }
-
-    internal void SetIndex(bool isFirst, bool isLast)
-    {
-        PseudoClasses.Set(PC_First, isFirst);
-        PseudoClasses.Set(PC_Last, isLast);
-    }
-
-    static TimelineItem()
-    {
-        ItemTypeProperty.Changed.AddClassHandler<TimelineItem>((o, e) => { o.OnItemTypeChanged(e); });
-        IconForegroundProperty.Changed.AddClassHandler<TimelineItem>((o, e) => { o.OnIconForegroundChanged(e); });
-    }
-
-    private void OnItemTypeChanged(AvaloniaPropertyChangedEventArgs args)
-    {
-        var oldValue = args.GetOldValue<TimelineItemType>();
-        var newValue = args.GetNewValue<TimelineItemType>();
-        PseudoClasses.Set(_itemTypeMapping[oldValue], false);
-        PseudoClasses.Set(_itemTypeMapping[newValue], true);
-    }
-
-    private void OnIconForegroundChanged(AvaloniaPropertyChangedEventArgs args)
-    {
-        IBrush? newValue = args.GetOldValue<IBrush?>();
-        PseudoClasses.Set(PC_None, newValue is null);
+        get => GetValue(TypeProperty);
+        set => SetValue(TypeProperty, value);
     }
+    
+    
 }