public async Task <IViewComponentResult> InvokeAsync(Widget widget)
{
if (widget == null || !Request.Path.HasValue)
{
return(await Task.FromResult <IViewComponentResult>(Content(string.Empty)));
}
// slugs
var slugs = Request.Path.Value.Split('/', StringSplitOptions.RemoveEmptyEntries);
// if no slugs or first slug is reserved when it's not preview, return empty
if (slugs.Length <= 0 ||
(slugs[0].ToLower() != "preview" && Array.IndexOf(PageService.Reserved_Slugs, slugs[0].ToLower()) != -1))
{
return(await Task.FromResult <IViewComponentResult>(Content(string.Empty)));
}
// page
Page page;
if (slugs[0].ToLower() == "preview")
{
var composePageId = GetComposeUrlPageId();
if (composePageId == 0)
{
return(await Task.FromResult <IViewComponentResult>(Content(string.Empty)));
}
page = await pageService.GetAsync(composePageId);
}
else
{
page = await pageService.GetAsync(slugs);
}
// visible only parent has children
if (page.IsParent && !page.HasChildren)
{
return(await Task.FromResult <IViewComponentResult>(Content(string.Empty)));
}
// nav str
string navBody;
int pageId;
if (page.IsParent)
{
navBody = PageService.NavMdToHtml(page.Nav, page.Slug);
pageId = page.Id;
}
else
{
var parent = await pageService.GetAsync(page.ParentId.Value);
navBody = PageService.NavMdToHtml(parent.Nav, parent.Slug);
pageId = parent.Id;
}
// edit link
var editNavLink = BlogRoutes.GetPageNavEditLink(pageId);
// wid
var pageNavigationWidget = (PageNavigationWidget)widget;
return(View("~/Components/PageNavigation.cshtml",
new PageNavigationVM {
NavBody = navBody,
NavEditLink = editNavLink,
WidgetTitle = pageNavigationWidget.Title
}));
}
