public Result <IDisposable> AddText(Identity identity, RenderedText text)
{
if (renderedText.ContainsKey(identity))
{
return(Result.FailWith <IDisposable>(State.Forbidden, $"TargetRenderer already contains text {identity.Id}."));
}
renderedText.Add(identity, text);
TextAdded?.Invoke(this, new RenderedTextEventArgs(identity, text));
return(Result.Ok(Disposable.For(() =>
{
if (renderedText.ContainsKey(identity))
{
renderedText.Remove(identity);
TextRemoved?.Invoke(this, new RenderedTextEventArgs(identity, text));
}
})));
}
public RenderedTextEventArgs(Identity identity, RenderedText text)
{
Identity = identity;
Text = text;
}