public static HtmlString Stylesheet(this HtmlHelper helper, string cssUrl)
{
if (helper == null)
{
throw new ArgumentNullException("helper");
}
if (String.IsNullOrEmpty(cssUrl))
{
throw new ArgumentNullException("cssUrl");
}
var context = helper.ViewContext.HttpContext;
var css = CssBundleManager.GetCssBundle(cssUrl);
var included = GetIncludedCssList(context);
if (!included.Contains(css))
{
included.Add(css);
return(new HtmlString(String.Format(" <link href=\"{0}\" rel=\"stylesheet\" type=\"text/css\"/>\n",
#if !ASPNETMVC
WebUtility.HtmlEncode(ContentHashCache.ResolveWithHash(css)))));
#else
HttpUtility.HtmlAttributeEncode(ContentHashCache.ResolveWithHash(css))));
#endif
}
else
{
return(new HtmlString(""));
}
}
public static IHtmlString StyleBundle(this HtmlHelper helper, string bundleKey)
{
if (helper == null)
{
throw new ArgumentNullException("helper");
}
if (String.IsNullOrEmpty(bundleKey))
{
throw new ArgumentNullException("bundleKey");
}
var context = helper.ViewContext.HttpContext;
if (!CssBundleManager.IsEnabled)
{
StringBuilder sb = new StringBuilder();
foreach (var include in CssBundleManager.GetBundleIncludes(bundleKey))
{
var cssUrl = include;
if (string.IsNullOrEmpty(cssUrl))
{
continue;
}
if (cssUrl != null && cssUrl.StartsWith("dynamic://", StringComparison.OrdinalIgnoreCase))
{
var scriptName = cssUrl.Substring(10);
cssUrl = DynamicScriptManager.GetScriptInclude(scriptName, ".css");
cssUrl = VirtualPathUtility.ToAbsolute("~/DynJS.axd/" + cssUrl);
}
else
{
cssUrl = BundleUtils.ExpandVersionVariable(cssUrl);
cssUrl = VirtualPathUtility.ToAbsolute(cssUrl);
}
var cssList = GetIncludedCssList(context);
if (!cssList.Contains(cssUrl))
{
cssList.Add(cssUrl);
sb.AppendLine(String.Format(" <link href=\"{0}\" rel=\"stylesheet\" type=\"text/css\"/>\n",
#if !ASPNETMVC
WebUtility.HtmlEncode(ContentHashCache.ResolveWithHash(cssUrl))));
#else
HttpUtility.HtmlAttributeEncode(ContentHashCache.ResolveWithHash(cssUrl))));
#endif
}
}
return(new HtmlString(sb.ToString()));
}
return(Stylesheet(helper, "dynamic://CssBundle." + bundleKey));
}
private static void Changed(string name)
{
var extension = Path.GetExtension(name);
if (extension == null || string.Compare(extension, ".css", StringComparison.OrdinalIgnoreCase) != 0)
{
return;
}
ContentHashCache.ScriptsChanged();
CssBundleManager.CssChanged();
}
public static void CssChanged()
{
BundleUtils.ClearVersionCache();
var instance = CssBundleManager.instance;
if (instance != null &&
instance.bundleByKey != null)
{
foreach (var bundle in instance.bundleByKey.Values)
{
bundle.Changed();
}
}
instance = null;
}
