Adjust project structure

src/Shared/HandyControl_Shared/Controls/Input/DatePicker.cs

@@ -0,0 +1,113 @@
+using System;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Input;
+using HandyControl.Data;
+using HandyControl.Interactivity;
+
+namespace HandyControl.Controls
+{
+    /// <inheritdoc cref="IDataInput" />
+    [TemplatePart(Name = ElementTextBox, Type = typeof(DatePickerTextBox))]
+    public class DatePicker : System.Windows.Controls.DatePicker, IDataInput
+    {
+        private const string ElementTextBox = "PART_TextBox";
+
+        private System.Windows.Controls.TextBox _textBox;
+
+        public DatePicker()
+        {
+            CommandBindings.Add(new CommandBinding(ControlCommands.Clear, (s, e) =>
+            {
+                ClearValue(SelectedDateProperty);
+                ClearValue(TextProperty);
+            }));
+        }
+
+        public override void OnApplyTemplate()
+        {
+            if (_textBox != null)
+            {
+                _textBox.TextChanged -= TextBox_TextChanged;
+            }
+
+            base.OnApplyTemplate();
+
+            _textBox = GetTemplateChild(ElementTextBox) as System.Windows.Controls.TextBox;
+            if (_textBox != null)
+            {
+                _textBox.TextChanged += TextBox_TextChanged;
+            }
+        }
+
+        private void TextBox_TextChanged(object sender, TextChangedEventArgs e) => VerifyData();
+
+        public Func<string, OperationResult<bool>> VerifyFunc { get; set; }
+
+        public static readonly DependencyProperty IsErrorProperty = DependencyProperty.Register(
+            "IsError", typeof(bool), typeof(DatePicker), new PropertyMetadata(ValueBoxes.FalseBox));
+
+        public bool IsError
+        {
+            get => (bool) GetValue(IsErrorProperty);
+            set => SetValue(IsErrorProperty, value);
+        }
+
+        public static readonly DependencyProperty ErrorStrProperty = DependencyProperty.Register(
+            "ErrorStr", typeof(string), typeof(DatePicker), new PropertyMetadata(default(string)));
+
+        public string ErrorStr
+        {
+            get => (string) GetValue(ErrorStrProperty);
+            set => SetValue(ErrorStrProperty, value);
+        }
+
+        public static readonly DependencyProperty TextTypeProperty = DependencyProperty.Register(
+            "TextType", typeof(TextType), typeof(DatePicker), new PropertyMetadata(default(TextType)));
+
+        public TextType TextType
+        {
+            get => (TextType) GetValue(TextTypeProperty);
+            set => SetValue(TextTypeProperty, value);
+        }
+
+        public static readonly DependencyProperty ShowClearButtonProperty = DependencyProperty.Register(
+            "ShowClearButton", typeof(bool), typeof(DatePicker), new PropertyMetadata(ValueBoxes.FalseBox));
+
+        public bool ShowClearButton
+        {
+            get => (bool) GetValue(ShowClearButtonProperty);
+            set => SetValue(ShowClearButtonProperty, value);
+        }
+
+        public virtual bool VerifyData()
+        {
+            OperationResult<bool> result;
+
+            if (VerifyFunc != null)
+            {
+                result = VerifyFunc.Invoke(Text);
+            }
+            else
+            {
+                if (!string.IsNullOrEmpty(Text))
+                {
+                    result = OperationResult.Success();
+                }
+                else if (InfoElement.GetNecessary(this))
+                {
+                    result = OperationResult.Failed(Properties.Langs.Lang.IsNecessary);
+                }
+                else
+                {
+                    result = OperationResult.Success();
+                }
+            }
+
+            IsError = !result.Data;
+            ErrorStr = result.Message;
+            return result.Data;
+        }
+    }
+}