public static async Task <TagHelperContent> ToTagHelperContentAsync(this IEnumerable <ITagHelper> tagHelpers, Options options)
{
var tagHelperList = tagHelpers as List <ITagHelper> ?? tagHelpers.ToList();
if (options.Context == null)
{
options.Context = new TagHelperContext(new TagHelperAttributeList(), new Dictionary <object, object>(), Guid.NewGuid().ToString("N"));
}
if (options.Attributes == null)
{
options.Attributes = new List <TagHelperAttribute>();
}
if (options.TagName == null)
{
options.TagName = tagHelpers.GetTagName();
}
var output = new TagHelperOutput(options.TagName, new TagHelperAttributeList(options.Attributes), (b, e) => Task.Factory.StartNew(() => options.Content))
{
TagMode = options.TagMode
};
if (options.InitTagHelper)
{
tagHelperList.ForEach(tH => tH.Init(options.Context));
}
foreach (var tagHelper in tagHelperList)
{
await tagHelper.ProcessAsync(options.Context, output);
}
if (options.Content != null && !output.IsContentModified)
{
output.Content.SetHtmlContent(options.Content);
}
return(output.ToTagHelperContent());
}
public static TagHelperContent Prepend(this TagHelperContent content, TagHelperOutput output) => content.Prepend(output.ToTagHelperContent());
