/******************************************************************************
 * Copyright (C) Ultraleap, Inc. 2011-2021.                                   *
 *                                                                            *
 * Use subject to the terms of the Apache License 2.0 available at            *
 * http://www.apache.org/licenses/LICENSE-2.0, or another agreement           *
 * between Ultraleap and you, your company or other organization.             *
 ******************************************************************************/

namespace Leap
{
    using System.Collections.Generic;

    /// <summary>
    /// The list of FailedDevice objects contains an entry for every failed Leap Motion
    /// hardware device connected to the client computer. FailedDevice objects report
    /// the device pnpID string and reason for failure.
    /// 
    /// Get the list of FailedDevice objects from Controller.FailedDevices().
    /// 
    /// @since 3.0
    /// </summary>
    public class FailedDeviceList : List<FailedDevice>
    {

        /// <summary>
        /// Constructs an empty list.
        /// </summary>
        public FailedDeviceList() { }

        /// <summary>
        /// Appends the contents of another FailedDeviceList to this one.
        /// </summary>
        public FailedDeviceList Append(FailedDeviceList other)
        {
            AddRange(other);
            return this;
        }

        /// <summary>
        /// Reports whether the list is empty.
        /// </summary>
        public bool IsEmpty
        {
            get { return Count == 0; }
        }
    }
}