feat: implement single date selector.

src/Ursa/Controls/DateTimePicker/DatePickerBase.cs

@@ -1,46 +1,115 @@
 using Avalonia;
 using Avalonia.Collections;
 using Avalonia.Controls.Primitives;
-using Avalonia.Controls.Templates;
+using Avalonia.Data;
+using Irihi.Avalonia.Shared.Contracts;
 
 namespace Ursa.Controls;
 
-public class DatePickerBase: TemplatedControl
+public class DatePickerBase : TemplatedControl, IInnerContentControl, IPopupInnerContent
 {
+    public static readonly StyledProperty<string?> DisplayFormatProperty =
+        AvaloniaProperty.Register<TimePicker, string?>(
+            nameof(DisplayFormat), "yyyy-MM-dd");
+    
     public static readonly StyledProperty<AvaloniaList<DateRange>> BlackoutDatesProperty =
         AvaloniaProperty.Register<DatePickerBase, AvaloniaList<DateRange>>(nameof(BlackoutDates));
 
+    public static readonly StyledProperty<IDateSelector?> BlackoutDateRuleProperty =
+        AvaloniaProperty.Register<DatePickerBase, IDateSelector?>(nameof(BlackoutDateRule));
+
+    public static readonly StyledProperty<DayOfWeek> FirstDayOfWeekProperty =
+        AvaloniaProperty.Register<DatePickerBase, DayOfWeek>(
+            nameof(FirstDayOfWeek), DateTimeHelper.GetCurrentDateTimeFormatInfo().FirstDayOfWeek);
+
+    public static readonly StyledProperty<bool> IsTodayHighlightedProperty =
+        AvaloniaProperty.Register<DatePickerBase, bool>(nameof(IsTodayHighlighted), true);
+
+    public static readonly StyledProperty<object?> InnerLeftContentProperty =
+        AvaloniaProperty.Register<DatePickerBase, object?>(
+            nameof(InnerLeftContent));
+
+    public static readonly StyledProperty<object?> InnerRightContentProperty =
+        AvaloniaProperty.Register<DatePickerBase, object?>(
+            nameof(InnerRightContent));
+    
+    public static readonly StyledProperty<object?> PopupInnerTopContentProperty =
+        AvaloniaProperty.Register<DatePickerBase, object?>(
+            nameof(PopupInnerTopContent));
+
+    public static readonly StyledProperty<object?> PopupInnerBottomContentProperty =
+        AvaloniaProperty.Register<DatePickerBase, object?>(
+            nameof(PopupInnerBottomContent));
+
+    public static readonly StyledProperty<bool> IsDropdownOpenProperty = AvaloniaProperty.Register<DatePickerBase, bool>(
+        nameof(IsDropdownOpen), defaultBindingMode: BindingMode.TwoWay);
+
+    public static readonly StyledProperty<bool> IsReadonlyProperty = AvaloniaProperty.Register<DatePickerBase, bool>(
+        nameof(IsReadonly));
+
     public AvaloniaList<DateRange> BlackoutDates
     {
         get => GetValue(BlackoutDatesProperty);
         set => SetValue(BlackoutDatesProperty, value);
     }
 
-    public static readonly StyledProperty<IDateSelector?> BlackoutDateRuleProperty =
-        AvaloniaProperty.Register<DatePickerBase, IDateSelector?>(nameof(BlackoutDateRule));
-
     public IDateSelector? BlackoutDateRule
     {
         get => GetValue(BlackoutDateRuleProperty);
         set => SetValue(BlackoutDateRuleProperty, value);
     }
 
-    public static readonly StyledProperty<DayOfWeek> FirstDayOfWeekProperty =
-        AvaloniaProperty.Register<DatePickerBase, DayOfWeek>(
-            nameof(FirstDayOfWeek), DateTimeHelper.GetCurrentDateTimeFormatInfo().FirstDayOfWeek);
-
     public DayOfWeek FirstDayOfWeek
     {
         get => GetValue(FirstDayOfWeekProperty);
         set => SetValue(FirstDayOfWeekProperty, value);
     }
-    
-    public static readonly StyledProperty<bool> IsTodayHighlightedProperty =
-        AvaloniaProperty.Register<DatePickerBase, bool>(nameof(IsTodayHighlighted), true);
+
     public bool IsTodayHighlighted
     {
         get => GetValue(IsTodayHighlightedProperty);
         set => SetValue(IsTodayHighlightedProperty, value);
     }
+
+    public bool IsReadonly
+    {
+        get => GetValue(IsReadonlyProperty);
+        set => SetValue(IsReadonlyProperty, value);
+    }
+
+    public bool IsDropdownOpen
+    {
+        get => GetValue(IsDropdownOpenProperty);
+        set => SetValue(IsDropdownOpenProperty, value);
+    }
+
+    public object? InnerLeftContent
+    {
+        get => GetValue(InnerLeftContentProperty);
+        set => SetValue(InnerLeftContentProperty, value);
+    }
+
+    public object? InnerRightContent
+    {
+        get => GetValue(InnerRightContentProperty);
+        set => SetValue(InnerRightContentProperty, value);
+    }
+
+    public object? PopupInnerTopContent
+    {
+        get => GetValue(PopupInnerTopContentProperty);
+        set => SetValue(PopupInnerTopContentProperty, value);
+    }
+
+    public object? PopupInnerBottomContent
+    {
+        get => GetValue(PopupInnerBottomContentProperty);
+        set => SetValue(PopupInnerBottomContentProperty, value);
+    }
     
+    public string? DisplayFormat
+    {
+        get => GetValue(DisplayFormatProperty);
+        set => SetValue(DisplayFormatProperty, value);
+    }
 }