private void UpdateLinks(MarkdownObject markdownObject)
{
switch (markdownObject)
{
case TabTitleBlock _:
break;
case LinkInline linkInline:
linkInline.Url = linkInline.IsImage
? _context.GetImageLink(linkInline.Url, linkInline, null)
: _context.GetLink(linkInline.Url, linkInline);
foreach (var subBlock in linkInline)
{
UpdateLinks(subBlock);
}
break;
case ContainerBlock containerBlock:
foreach (var subBlock in containerBlock)
{
UpdateLinks(subBlock);
}
break;
case LeafBlock leafBlock when leafBlock.Inline != null:
foreach (var subInline in leafBlock.Inline)
{
UpdateLinks(subInline);
}
break;
case ContainerInline containerInline:
foreach (var subInline in containerInline)
{
UpdateLinks(subInline);
}
break;
default:
break;
}
}
public bool TryProcessAttributes(IDictionary <string, string> attributes, out HtmlAttributes htmlAttributes, out IDictionary <string, string> renderProperties, Action <string> logError, Action <string> logWarning, MarkdownObject markdownObject)
{
htmlAttributes = null;
renderProperties = new Dictionary <string, string>();
var src = string.Empty;
var alt = string.Empty;
var type = string.Empty;
var loc_scope = string.Empty;
foreach (var attribute in attributes)
{
var name = attribute.Key;
var value = attribute.Value;
switch (name)
{
case "alt-text":
alt = value;
break;
case "type":
type = value;
break;
case "loc-scope":
loc_scope = value;
break;
case "source":
src = value;
break;
case "border":
break;
case "lightbox":
break;
case "link":
break;
default:
logError($"Image reference '{src}' is invalid per the schema. Unexpected attribute: '{name}'.");
return(false);
}
}
if (string.IsNullOrEmpty(type))
{
type = "content";
}
if (string.IsNullOrEmpty(src))
{
logError("source is a required attribute. Please ensure you have specified a source attribute.");
}
if (string.IsNullOrEmpty(alt) && type != "icon")
{
logError("alt-text is a required attribute. Please ensure you have specified an alt-text attribute.");
}
// add loc scope missing/invalid validation here
if ((string.IsNullOrEmpty(alt) && type != "icon") || string.IsNullOrEmpty(src))
{
return(false);
}
htmlAttributes = new HtmlAttributes();
// alt is allowed to be empty for icon type image
if (string.IsNullOrEmpty(alt) && type == "icon")
{
htmlAttributes.AddProperty("src", _context.GetLink(src, markdownObject));
}
else
{
htmlAttributes.AddProperty("src", _context.GetImageLink(src, markdownObject, alt));
}
if (type == "icon")
{
htmlAttributes.AddProperty("role", "presentation");
}
else
{
htmlAttributes.AddProperty("alt", alt);
}
var id = GetHtmlId(markdownObject);
if (type == "complex")
{
htmlAttributes.AddProperty("aria-describedby", id);
}
return(true);
}