private static bool HasBreadcrumb(Type type, out BreadcrumbNodeEntry entry)
{
entry = null;
if (!type.IsRazorPage())
{
return(false);
}
var attr = type.GetCustomAttribute <BreadcrumbAttribute>();
if (attr == null)
{
return(false);
}
string path = type.ExtractRazorPageKey();
entry = new BreadcrumbNodeEntry
{
Key = path,
Node = new RazorPageBreadcrumbNode(path, attr),
FromKey = attr.ExtractFromKey(type),
Default = attr.Default
};
return(true);
}
private bool TryGetBreadcrumbNodeEntry(Type type, out BreadcrumbNodeEntry entry)
{
entry = null;
if (!type.IsController())
{
return(false);
}
var attr = type.GetCustomAttribute <BreadcrumbAttribute>();
if (attr == null)
{
return(false);
}
//if no title is given, then fallback to controller name.
if (string.IsNullOrWhiteSpace(attr.Title))
{
attr.Title = type.Name.Replace("Controller", string.Empty);
}
string key = type.ExtractMvcControllerKey();
entry = new BreadcrumbNodeEntry
{
Key = key,
Node = new MvcControllerBreadcrumbNode(type.Name.Replace("Controller", string.Empty), attr),
FromKey = attr.ExtractFromKey(type),
Default = attr.Default
};
return(true);
}
private void GenerateHierarchy(Dictionary <string, BreadcrumbNodeEntry> entries)
{
// Mandatory single default entry
BreadcrumbNodeEntry defaultEntry = entries.Values.Single(e => e.Default);
DefaultNode = defaultEntry.Node;
_nodes.Add(defaultEntry.Key, DefaultNode);
foreach (var entry in entries.Values)
{
if (entry.Default)
{
continue;
}
var fromKey = entry.FromKey ?? defaultEntry.Key;
if (!entries.ContainsKey(fromKey))
{
throw new SmartBreadcrumbsException($"No node exists that has a '{fromKey}' as a key.\n" +
$"Make sure that razor page or controller action has a BreadcrumbAttribute.");
}
var fromEntry = entries[fromKey];
entry.Node.Parent = fromEntry.Node;
_nodes.Add(entry.Key, entry.Node);
}
}
private static bool HasBreadcrumb(Type type, out BreadcrumbNodeEntry entry)
{
entry = null;
if (!type.IsRazorPage())
{
return(false);
}
var attr = type.GetCustomAttribute <BreadcrumbAttribute>();
if (attr == null)
{
return(false);
}
//if no title is given, then fallback to type name (razor page name).
if (string.IsNullOrWhiteSpace(attr.Title))
{
attr.Title = type.Name.Replace("Page", string.Empty);
}
string path = type.ExtractRazorPageKey();
entry = new BreadcrumbNodeEntry
{
Key = path,
Node = new RazorPageBreadcrumbNode(path, attr),
FromKey = attr.ExtractFromKey(type),
Default = attr.Default
};
return(true);
}