internal async Task WriteAsync(AsyncHtmlEncodingTextWriter writer)
{
if (_shouldEncode)
{
await writer.Write(_name).ConfigureAwait(false);
if (_value != null)
{
await writer.WriteRaw("=\"").ConfigureAwait(false);
await writer.Write(_value).ConfigureAwait(false);
await writer.WriteRaw('"').ConfigureAwait(false);
}
}
else
{
await writer.WriteRaw(_name).ConfigureAwait(false);
if (_value != null)
{
await writer.WriteRaw("=\"").ConfigureAwait(false);
await writer.WriteRaw(_value).ConfigureAwait(false);
await writer.WriteRaw('"').ConfigureAwait(false);
}
}
}
internal override async Task WriteAsyncImpl(AsyncHtmlEncodingTextWriter writer)
{
await writer.WriteRaw('<').ConfigureAwait(false);
if (_shouldEncodeName)
{
await writer.Write(_tagName).ConfigureAwait(false);
}
else
{
await writer.WriteRaw(_tagName).ConfigureAwait(false);
}
foreach (var attr in _attributes)
{
await writer.WriteRaw(' ').ConfigureAwait(false);
await attr.WriteAsync(writer).ConfigureAwait(false);
}
await writer.WriteRaw('>').ConfigureAwait(false);
foreach (var child in _children)
{
await child.WriteAsyncImpl(writer).ConfigureAwait(false);
}
await writer.WriteRaw("</").ConfigureAwait(false);
await writer.Write(_tagName).ConfigureAwait(false);
await writer.WriteRaw('>').ConfigureAwait(false);
}
internal override async Task WriteAsyncImpl(AsyncHtmlEncodingTextWriter writer)
{
foreach (var child in _children)
{
await child.WriteAsyncImpl(writer).ConfigureAwait(false);
}
}
/// <summary>
/// Write the HTML to a <see cref="TextWriter"/>, using an <see cref="HtmlEncoder"/> to encode input text
/// </summary>
/// <param name="writer">The writer</param>
/// <param name="htmlEncoder">The HTML encoder</param>
/// <exception cref="InvalidOperationException">Thrown if <see cref="CanWriteAsync"/> is false (ie if this <see cref="Html"/> contains an <see cref="HtmlBuilder"/>.</exception>
public async Task WriteAsync(TextWriter writer, HtmlEncoder htmlEncoder)
{
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
if (htmlEncoder == null)
{
throw new ArgumentNullException(nameof(htmlEncoder));
}
if (!CanWriteAsync)
{
throw new InvalidOperationException("Can't write this HTML asynchronously because it contains an HtmlBuilder");
}
var htmlEncodingTextWriter = new AsyncHtmlEncodingTextWriter(writer, htmlEncoder);
await WriteAsyncImpl(htmlEncodingTextWriter).ConfigureAwait(false);
await htmlEncodingTextWriter.FlushAndClear().ConfigureAwait(false);
}
internal override Task WriteAsyncImpl(AsyncHtmlEncodingTextWriter writer)
{
throw new InvalidOperationException("Can't run an HtmlBuilder asynchronously");
}
internal abstract Task WriteAsyncImpl(AsyncHtmlEncodingTextWriter writer);
internal override Task WriteAsyncImpl(AsyncHtmlEncodingTextWriter writer) => writer.Write(_text);
internal override Task WriteAsyncImpl(AsyncHtmlEncodingTextWriter writer) => writer.WriteRaw(_rawHtml);