public override void Process(TagHelperContext context, TagHelperOutput output)
{
string icon = null;
var ext = FileExtension.EmptyNull();
if (ext.StartsWith('.'))
{
ext = ext[1..];
public override void Process(TagHelperContext context, TagHelperOutput output)
{
output.TagName = null;
output.TagMode = TagMode.StartTagAndEndTag;
if (ShowLabel && FileExtension.IsEmpty())
{
// No icon, just "n\a" label.
output.Content.AppendHtml($"<span class='text-muted'>{string.Empty.NaIfEmpty()}</span>");
}
else
{
var ext = FileExtension.EmptyNull().TrimStart('.');
var iconClass = ext.ToLowerInvariant() switch
{
"pdf" => "far fa-file-pdf",
"doc" or "docx" or "docm" or "odt" or "dot" or "dotx" or "dotm" => "far fa-file-word",
"xls" or "xlsx" or "xlsm" or "xlsb" or "ods" => "far fa-file-excel",
"csv" or "tab" => "fa fa-file-csv",
"ppt" or "pptx" or "pptm" or "ppsx" or "odp" or "potx" or "pot" or "potm" or "pps" or "ppsm" => "far fa-file-powerpoint",
"zip" or "rar" or "7z" => "far fa-file-archive",
"png" or "jpg" or "jpeg" or "bmp" or "psd" => "far fa-file-image",
"mp3" or "wav" or "ogg" or "wma" => "far fa-file-audio",
"mp4" or "mkv" or "wmv" or "avi" or "asf" or "mpg" or "mpeg" => "far fa-file-video",
"txt" => "far fa-file-alt",
"exe" => "fa fa-cog",
"xml" or "html" or "htm" => "far fa-file-code",
_ => "far fa-file",
};
ext = ext.NaIfEmpty().ToUpper();
output.Content.AppendHtml($"<i class='fa-fw {iconClass}' title='{ext}'></i>");
if (ShowLabel)
{
output.Content.AppendHtml("<span class='ml-1{0}'>{1}</span>".FormatInvariant(
FileExtension.IsEmpty() ? " text-muted" : "",
Label ?? ext));
}
}
if (BadgeClass.HasValue())
{
output.WrapHtmlInside($"<span class='badge{BadgeClass.LeftPad()}'>", "</span>");
}
}