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.Markup;

namespace Tango.DragAndDrop
{
    [ContentProperty(nameof(InnerContent))]
    public class DragAndDropContainer : ContentControl
    {
        public DragAndDropContainer()
        {
            Grid g = new Grid();
            Content = g;

            ContentControl control = new ContentControl();
            control.Bind(ContentControl.ContentProperty, this, InnerContentProperty, System.Windows.Data.BindingMode.OneWay);
            g.Children.Add(control);

            DraggingSurface = new DraggingSurface();
            g.Children.Add(DraggingSurface);
        }

        public DraggingSurface DraggingSurface
        {
            get { return (DraggingSurface)GetValue(DraggingSurfaceProperty); }
            private set { SetValue(DraggingSurfaceProperty, value); }
        }
        public static readonly DependencyProperty DraggingSurfaceProperty =
            DependencyProperty.Register("DraggingSurface", typeof(DraggingSurface), typeof(DragAndDropContainer), new PropertyMetadata(null));

        public Object InnerContent
        {
            get { return (Object)GetValue(InnerContentProperty); }
            set { SetValue(InnerContentProperty, value); }
        }
        public static readonly DependencyProperty InnerContentProperty =
            DependencyProperty.Register("InnerContent", typeof(Object), typeof(DragAndDropContainer), new PropertyMetadata(null));
    }
}