/// <summary>
/// Generates a <link > tag.
/// </summary>
public static void GenerateLink(this OutputHelper @this, string href)
{
var e = new Element("link", ClosingTagKind.None);
e.Attributes.Add(new ElementAttribute("rel", "stylesheet"));
e.Attributes.Add(new ElementAttribute("href", href));
@this.Add(e);
}
public HtmlString Render(Element element)
{
if (element == null)
{
throw new ArgumentNullException(nameof(element));
}
return new HtmlString(RenderCore(element));
}
/// <summary>
/// Generates a <script></script> tag.
/// </summary>
public static void GenerateScript(this OutputHelper @this, string src, string type = null)
{
var e = new Element("script", ClosingTagKind.Normal);
e.Attributes.Add(new ElementAttribute("src", src));
if (type != null)
{
e.Attributes.Add(new ElementAttribute("type", type));
}
@this.Add(e);
}
private string RenderCore(Element element)
{
var sb = new StringBuilder();
sb.Append($"<{element.TagName}");
if (element.Attributes.Any())
{
sb.Append(" ");
}
for (int i = 0; i < element.Attributes.Count; i++)
{
var attribute = element.Attributes[i];
sb.Append($"{attribute.Name}=\"{attribute.Value}\"");
if (i != element.Attributes.Count - 1)
{
sb.Append(" ");
}
}
if (!string.IsNullOrWhiteSpace(element.Content) && element.ClosingTagKind != ClosingTagKind.Normal)
{
throw new InvalidOperationException(
"Elements with a non-normal closing tag kind cannot have content.");
}
switch (element.ClosingTagKind)
{
case ClosingTagKind.None:
sb.Append(" >");
break;
case ClosingTagKind.SelfClosing:
sb.Append(" />");
break;
case ClosingTagKind.Normal:
sb.Append(">");
if (!string.IsNullOrWhiteSpace(element.Content))
{
sb.Append(element.Content);
}
sb.Append($"</{element.TagName}>");
break;
}
return sb.ToString();
}
public void Add(Element element)
{
_elements.Add(element);
}
