using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Tango.Core.EventArguments;

namespace Tango.Touch.Controls
{
    public class TouchDatePicker : DatePicker
    {
        static TouchDatePicker()
        {
            DefaultStyleKeyProperty.OverrideMetadata(typeof(TouchDatePicker), new FrameworkPropertyMetadata(typeof(TouchDatePicker)));
        }

        public TouchDatePicker()
        {
            this.RegisterForPreviewMouseOrTouchDown(OnMouseDown);
            this.RegisterForPreviewMouseOrTouchUp(OnMouseUp);
        }

        private void OnMouseUp(object sender, MouseOrTouchEventArgs e)
        {
            ShowSelectionOnTouchPanel();
        }

        private void OnMouseDown(object sender, MouseOrTouchEventArgs e)
        {
            System.Windows.Input.Keyboard.Focus(this);
        }

        private void ShowSelectionOnTouchPanel()
        {
            TouchPanel touchPanel = this.FindAncestor<TouchPanel>();

            if (touchPanel != null)
            {
                touchPanel.CurrentDatePicker = this;
            }
        }

        internal void SetResultFromTouchPanel(DateTime selectedDate)
        {
            SelectedDate = selectedDate;
        }
    }
}