// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
namespace Microsoft.AspNetCore.Components.Web;
 
/// <summary>
/// The <see cref="DataTransfer"/> object is used to hold the data that is being dragged during a drag and drop operation.
/// It may hold one or more <see cref="DataTransferItem"/>, each of one or more data types.
/// For more information about drag and drop, see HTML Drag and Drop API.
/// </summary>
public class DataTransfer
{
    /// <summary>
    /// Gets the type of drag-and-drop operation currently selected or sets the operation to a new type.
    /// The value must be none, copy, link or move.
    /// </summary>
    public string DropEffect { get; set; } = default!;
 
    /// <summary>
    /// Provides all of the types of operations that are possible.
    /// Must be one of none, copy, copyLink, copyMove, link, linkMove, move, all or uninitialized.
    /// </summary>
    public string? EffectAllowed { get; set; }
 
    /// <summary>
    /// Contains a list of all the local files available on the data transfer.
    /// If the drag operation doesn't involve dragging files, this property is an empty list.
    /// </summary>
    public string[] Files { get; set; } = Array.Empty<string>();
 
    /// <summary>
    /// Gives a <see cref="DataTransferItem"/> array which is a list of all of the drag data.
    /// </summary>
    public DataTransferItem[] Items { get; set; } = Array.Empty<DataTransferItem>();
 
    /// <summary>
    /// An array of <see cref="string"/> giving the formats that were set in the dragstart event.
    /// </summary>
    public string[] Types { get; set; } = Array.Empty<string>();
}