public static Task RegisterDropEventsAsync(this IFileReaderRef source, Action <DropEventsOptions> dropEventsModifier)
{
if (source is null)
{
throw new ArgumentNullException(nameof(source));
}
if (dropEventsModifier is null)
{
throw new ArgumentNullException(nameof(dropEventsModifier));
}
var options = new DropEventsOptions();
dropEventsModifier(options);
return(source.RegisterDropEventsAsync(options));
}
/// <summary>
/// Sets the specified <see cref="dropEffect"/> value on the dataTransfer property in the dragover event to the specified value.
/// </summary>
/// <param name="source"></param>
/// <param name="dropEffect"></param>
/// <remarks>https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/dropEffect</remarks>
/// <returns></returns>
public static DropEventsOptions SetDragOverDataTransferDropEffect(this DropEventsOptions source, DropEffect dropEffect)
{
if (source is null)
{
throw new System.ArgumentNullException(nameof(source));
}
if (!dropeffectDomstringValues.TryGetValue(dropEffect, out var value))
{
throw new System.ArgumentException($"{dropEffect} is not a valid value for parameter {nameof(dropEffect)}", nameof(dropEffect));
}
source.OnDragOverScript = @$ "(dragEvent) => {{
if (dragEvent.dataTransfer) {{
dragEvent.dataTransfer.dropEffect = " "{value}" ";
}}
}}";
