public static PageInfo?FindPage(this IPageCatalog pageCatalog, ActionDescriptor actionDescriptor)
{
if (!(actionDescriptor is ControllerActionDescriptor controllerActionDescriptor))
{
return(null);
}
var routeNames = s_routeNameCache.GetOrAdd(controllerActionDescriptor.MethodInfo, method =>
method.GetCustomAttributes <Attribute>()
.OfType <IRouteTemplateProvider>()
.Select(provider => provider.Name)
.ToArray());
string routeName;
PageInfo?page;
for (int i = 0, n = routeNames.Length; i < n; i++)
{
if ((routeName = routeNames[i]) != null && (page = pageCatalog.GetPage(routeName)) != null)
{
return(page);
}
}
return(null);
}
public virtual void Initialize(ActionContext actionContext, IPageCatalog pages, IHtmlLocalizer htmlLocalizer)
{
PageInfo ??= pages.FindPage(actionContext.ActionDescriptor);
Title ??= (GetTitle ?? PageInfo?.GetDefaultTitle)?.Invoke(actionContext.HttpContext, htmlLocalizer);
}
