// Copyright (c) 2017 schick Informatik
// Description: Eigene routed commands. Damit können "globale" Commands definiert werden, die überall in XAML
// an Objekte attached werden können. Erste Verwendung war das Kontextmenü "löschen" für DateTimePicker, um den
// ausgewählten Wert zu leeren.

using System.Windows;
using System.Windows.Input;
using System.Windows.Media;

namespace ENI2
{
    public static class CustomCommands
    {

        public static readonly RoutedUICommand Clear = new RoutedUICommand(
                Properties.Resources.textClear,
                "Clear",
                typeof(CustomCommands),
                new InputGestureCollection()
                {
                    new KeyGesture(Key.Delete)
                }

            );

        public static T FindParent<T>(DependencyObject child) where T : DependencyObject
        {
            if (child == null) return null;

            //get parent item
            DependencyObject parentObject = VisualTreeHelper.GetParent(child);

            //we've reached the end of the tree
            if (parentObject == null) return null;

            //check if the parent matches the type we're looking for
            if (parentObject is T parent)
                return parent;
            else
                return FindParent<T>(parentObject);
        }

    }
}