// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
 
using System;
using System.Collections;
using System.Collections.Generic;
using System.Windows;
 
namespace System.Windows.Controls
{
    /// <summary>
    /// Workaround for UIElement.RaiseEvent(e) throws InvalidCastException when 
    ///     e is of type SelectionChangedEventArgs 
    ///     e.RoutedEvent was registered with a handler not of type System.Windows.Controls.SelectionChangedEventHandler
    /// </summary>
    internal class CalendarSelectionChangedEventArgs : SelectionChangedEventArgs
    {
        /// <summary>
        /// Constructor
        /// </summary>
        /// <param name="eventId">Routed Event</param>
        /// <param name="removedItems">Items removed from selection</param>
        /// <param name="addedItems">Items added to selection</param>
        public CalendarSelectionChangedEventArgs(RoutedEvent eventId, IList removedItems, IList addedItems) :
            base(eventId, removedItems, addedItems)
        {
        }
 
        protected override void InvokeEventHandler(Delegate genericHandler, object genericTarget)
        {
            EventHandler<SelectionChangedEventArgs> handler = genericHandler as EventHandler<SelectionChangedEventArgs>;
            if (handler != null)
            {
                handler(genericTarget, this);
            }
            else
            {
                base.InvokeEventHandler(genericHandler, genericTarget);
            }
        }
    }
}