// https://github.com/jsakamoto/Toolbelt.Blazor.HeadElement/blob/master/Components/Title.razor
// TODO: this is unsupported. If something goes wrong this is the issue
public static string AsString(this RenderFragment renderFragment)
{
var renderTreeBuilder = new RenderTreeBuilder();
renderFragment.Invoke(renderTreeBuilder);
var frames = renderTreeBuilder.GetFrames();
var content = new StringBuilder();
#pragma warning disable BL0006 // Do not use RenderTree types
foreach (var frame in frames.Array)
{
switch (frame.FrameType)
{
case RenderTreeFrameType.Text:
content.Append(frame.TextContent);
break;
case RenderTreeFrameType.Markup:
content.Append(frame.MarkupContent);
break;
default:
break;
}
}
#pragma warning restore BL0006 // Do not use RenderTree types
return(content.ToString());
}
public void Add <T>(RenderFragment css)
{
if (!_styles.ContainsKey(typeof(T)))
{
var renderTreeBuilder = new RenderTreeBuilder();
css.Invoke(renderTreeBuilder);
var frames = renderTreeBuilder.GetFrames();
var content = frames.Array.FirstOrDefault().TextContent;
if (content == null)
{
throw new ArgumentException("RenderFragment can only contain CSS");
}
content = Regex.Replace(content, @"\s+", " ");
var prefix = $"#comp{typeof(T).FullName.GetHashCode()}";
var sections = content.Split('}').Where(x => !string.IsNullOrWhiteSpace(x));
var prefixed = string.Join("} ", sections.Select(x => prefix + x)) + "}";
_styles.Add(typeof(T), prefixed);
AddedCallback?.Invoke();
}
}
protected override void BuildRenderTree(RenderTreeBuilder builder)
{
RenderFragment applicableRenderFragment = this.CurrentParticipantInfo.IsFacilitator ? this.Facilitator : this.Participant;
applicableRenderFragment.Invoke(builder);
}
public async Task HandleSelectAsync(T item, RenderFragment <T> contentFragment)
{
tip = contentFragment.Invoke(item);
show = false;
await OnSelected.InvokeAsync(item);
}