/// <summary>
/// Sets the title of the page. Uses the GetField method of the Page instructions interface
/// to get the value.
/// </summary>
protected virtual void SetTitle()
{
if (CurrentPageHead != null)
{
string title = PageAssemblyInstruction.GetField(PageAssemblyInstructionFields.HTML_Title);
CurrentPageHead.Title = title.Replace("<i>", "").Replace("</i>", "");
}
}
/// <summary>
/// Adds the specified link rel item to the head of the page.
/// </summary>
/// <param name="htmlHead">The html head of the current page.</param>
/// <param name="htmlLinkRelType">The type ofrel item to add.</param>
private void addLinkRelItem(HtmlHead htmlHead, HtmlLinkRelType htmlLinkRelType)
{
List <HtmlLink> linkList = new List <HtmlLink>();
if (htmlLinkRelType == HtmlLinkRelType.SchemaDcTerms)
{
HtmlLink hl = new HtmlLink();
hl.Attributes.Add("rel", "schema.dcterms");
hl.Href = "http://purl.org/dc/terms/";
linkList.Add(hl);
}
else if (htmlLinkRelType == HtmlLinkRelType.Alternate)
{
// only add any alternate links if some translation exists
if (PageAssemblyContext.Current.PageAssemblyInstruction.TranslationKeys.Length > 0)
{
// retrieve the current language and hostname
string pageLang = PageAssemblyContext.Current.PageAssemblyInstruction.GetField("Language");
bool hasShortLangCode = pageLang.Length <= 2;
bool foundPageLang = false;
foreach (string key in PageAssemblyContext.Current.PageAssemblyInstruction.TranslationKeys)
{
// use the two-character code for this language if the page's language is also two characters
string translationLang = hasShortLangCode ? CultureInfo.GetCultureInfoByIetfLanguageTag(key).TwoLetterISOLanguageName : key;
// track if the page's language has been found
if (!foundPageLang && translationLang.Equals(pageLang, StringComparison.OrdinalIgnoreCase))
{
foundPageLang = true;
}
// retrieve the translation URL
NciUrl url = PageAssemblyContext.Current.PageAssemblyInstruction.GetTranslationUrl(key);
// build and add htmllink to list
HtmlLink hl = new HtmlLink();
hl.Href = ContentDeliveryEngineConfig.CanonicalHostName.CanonicalUrlHostName.CanonicalHostName + url.ToString();
hl.Attributes.Add("hreflang", translationLang);
hl.Attributes.Add("rel", "alternate");
linkList.Add(hl);
}
if (!foundPageLang)
{
// add the canonical url as the rel link for the page's language
string CanonicalUrl = PageAssemblyInstruction.GetUrl(PageAssemblyInstructionUrls.CanonicalUrl).ToString();
if (!string.IsNullOrEmpty(CanonicalUrl))
{
// build and add htmllink
HtmlLink hl = new HtmlLink();
hl.Href = ContentDeliveryEngineConfig.CanonicalHostName.CanonicalUrlHostName.CanonicalHostName + CanonicalUrl;
hl.Attributes.Add("hreflang", pageLang);
hl.Attributes.Add("rel", "alternate");
linkList.Add(hl);
}
}
}
}
else if (htmlLinkRelType == HtmlLinkRelType.Next)
{
string nextUrl = PageAssemblyInstruction.GetUrl("RelNext").ToString();
if (!String.IsNullOrEmpty(nextUrl))
{
HtmlLink hl = new HtmlLink();
hl.Href = ContentDeliveryEngineConfig.CanonicalHostName.CanonicalUrlHostName.CanonicalHostName + nextUrl;
hl.Attributes.Add("rel", "next");
linkList.Add(hl);
}
}
else if (htmlLinkRelType == HtmlLinkRelType.Prev)
{
string prevUrl = PageAssemblyInstruction.GetUrl("RelPrev").ToString();
if (!String.IsNullOrEmpty(prevUrl))
{
HtmlLink hl = new HtmlLink();
hl.Href = ContentDeliveryEngineConfig.CanonicalHostName.CanonicalUrlHostName.CanonicalHostName + prevUrl;
hl.Attributes.Add("rel", "prev");
linkList.Add(hl);
}
}
foreach (HtmlLink hl in linkList)
{
htmlHead.Controls.Add(hl);
}
}
