// NOT thread-safe over a request because it modifies the
// global UmbracoContext.Current.InPreviewMode status. So it
// should never execute in // over the same UmbracoContext with
// different preview modes.
private string RenderRteMacros(string source, bool preview)
{
IUmbracoContext umbracoContext = _umbracoContextAccessor.GetRequiredUmbracoContext();
using (umbracoContext.ForcedPreview(preview)) // force for macro rendering
{
var sb = new StringBuilder();
MacroTagParser.ParseMacros(
source,
// callback for when text block is found
textBlock => sb.Append(textBlock),
// callback for when macro syntax is found
(macroAlias, macroAttributes) => sb.Append(_macroRenderer.RenderAsync(
macroAlias,
umbracoContext.PublishedRequest?.PublishedContent,
// needs to be explicitly casted to Dictionary<string, object>
macroAttributes.ConvertTo(x => (string)x, x => x) !).GetAwaiter().GetResult().Text));
return(sb.ToString());
}
}
/// <summary>
/// Renders the macro with the specified alias, passing in the specified parameters.
/// </summary>
private async Task <IHtmlEncodedString> RenderMacroAsync(IPublishedContent content, string alias, IDictionary <string, object>?parameters)
{
if (content == null)
{
throw new ArgumentNullException(nameof(content));
}
// TODO: We are doing at ToLower here because for some insane reason the UpdateMacroModel method looks for a lower case match. the whole macro concept needs to be rewritten.
// NOTE: the value could have HTML encoded values, so we need to deal with that
var macroProps = parameters?.ToDictionary(
x => x.Key.ToLowerInvariant(),
i => i.Value is string?WebUtility.HtmlDecode(i.Value.ToString()) : i.Value);
var html = (await _macroRenderer.RenderAsync(alias, content, macroProps)).Text;
return(new HtmlEncodedString(html !));
}