/// <summary>
/// Adds a stylesheet to the page head tag.
/// </summary>
/// <param name="Header">The page head.</param>
/// <param name="href">The url of the css file you want to add to the page head.</param>
/// <remarks>Automatically replaces the token {langType} in href with ltr/rtl depending on the current language type.</remarks>
/// <remarks>Automatically replaces the token {langCode} in href with code of the target language depending on the current language.</remarks>
public static void AddCssToPageHeader(HtmlHead Header, string href)
{
string expandedHref = href;
var styleTag = string.Format("<link href='{0}' rel='stylesheet'/>", expandedHref);
Literal CustomLinks = (Literal)Header.FindControl("CssLinks");
if (!CustomLinks.Text.Contains(styleTag))
{
CustomLinks.Text += styleTag;
}
}
private void AddCssLink(string link, string cssLinkID)
{
LiteralControl cssLink = new LiteralControl(link);
cssLink.ID = cssLinkID;
HtmlHead pageHead = Page.Header;
if (pageHead.FindControl(cssLinkID) == null)
{
pageHead.Controls.Add(cssLink);
}
}
/// <summary>
/// Adds a script reference to the page head tag.
/// </summary>
/// <param name="Header">The page head.</param>
/// <param name="src">The url of the js file you want to add to the page head.</param>
/// <remarks>Automatically replaces the token {langType} in src with ltr/rtl depending on the current language type.</remarks>
/// <remarks>Automatically replaces the token {langCode} in src with code of the target language depending on the current language.</remarks>
public static void AddJsToPageHeader(HtmlHead Header, string src)
{
string expandedSrc = src;
var scriptTag = string.Format("<script src='{0}'></script>", expandedSrc);
Literal CustomLinks = (Literal)Header.FindControl("JsLinks");
if (!CustomLinks.Text.Contains(scriptTag))
{
CustomLinks.Text += scriptTag;
}
}
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
String url = Page.ResolveClientUrl(ScriptPath + @"Styles/SyntaxHighlighter.css");
String link = "<link type=\"text/css\" rel=\"stylesheet\" href=\"" + url + "\"></link>";
LiteralControl cssLink = new LiteralControl(link);
cssLink.ID = "_cssLink";
HtmlHead pageHead = Page.Header;
if (pageHead.FindControl("_cssLink") == null)
{
pageHead.Controls.Add(cssLink);
}
}
public void IncludeOn(HtmlHead header)
{
string includeStr = this.ResolveUrl(this.url);
bool alreadyExists = false;
HtmlHeaderStyleLink aHTCIncludeControl;
if (header != null)
{
foreach (Control control in header.Controls)
{
aHTCIncludeControl = control as HtmlHeaderStyleLink;
if ((aHTCIncludeControl != null) && (String.Compare(aHTCIncludeControl.Url, includeStr, StringComparison.CurrentCultureIgnoreCase) == 0))
{
alreadyExists = true;
}
}
if (!alreadyExists)
{
var IncludeCssSection = header.FindControl("IncludeCssSection");
IncludeCssSection.Controls.Add(this);
}
}
}
internal static void RegisterStyleSheetResource(Control ctl, string resourceName, string id, bool registerStyleSheetLoader)
{
Page page = ctl.Page;
bool useStyleSheetLoader = false;
string resourceUrl = GetResourceUrl(resourceName, true);
ScriptManager sm = ScriptManager.GetCurrent(ctl.Page);
if (sm != null)
{
useStyleSheetLoader = sm.IsInAsyncPostBack;
}
if (!useStyleSheetLoader)
{
HtmlHead head = page.Header;
if (head == null)
{
useStyleSheetLoader = true;
}
else if (head.FindControl(id) == null)
{
head.Controls.Add(Support.CreateStyleSheetLink(resourceUrl, id));
}
}
if (useStyleSheetLoader)
{
Type pageType = page.GetType();
if (registerStyleSheetLoader)
{
RegisterScriptResource(page, "Micajah.Common.StyleSheetLoader", StyleSheetLoader);
}
ScriptManager.RegisterStartupScript(page, pageType, resourceName, string.Format(CultureInfo.InvariantCulture, "Micajah.Common.StyleSheetLoader.getInstance().addStyleSheet(\"{0}\");\r\n", resourceUrl), true);
}
}
