/// <summary>
/// Return a javascript block containing the contents of <paramref name="script" />
/// if <paramref name="condition" /> is true
/// with an optional execution deferment.
/// </summary>
/// <param name="helper">The HTML helper instance that this method extends.</param>
/// <param name="condition">The condition that must be met to display the script block.</param>
/// <param name="script">The script to write to the script block.</param>
/// <param name="defer">Whether or not to defer script execution until after page load completion.</param>
/// <returns></returns>
public static MvcHtmlString JSBlock(this HtmlHelper helper, bool condition, string script, bool defer)
{
if (condition)
{
return(MvcHtmlString.Create(JavaScriptHelper.BuildJavaScriptFragment(null, script, defer)));
}
else
{
return(MvcHtmlString.Empty);
}
}
/// <summary>
/// Returns an MVC string with all the required JS script block fragments.
/// Clears the requires list to prevent duplicate emission.
/// </summary>
/// <returns></returns>
public static MvcHtmlString WriteRequiredJsFragments(this HtmlHelper helper)
{
var requires = GetRequires <JsFragmentResource>(KEY_JSFRAGMENTS);
if (requires == null)
{
return(MvcHtmlString.Empty);
}
var result = new StringBuilder();
foreach (var fragment in requires)
{
result.AppendLine(JavaScriptHelper.BuildJavaScriptFragment(null, fragment.JsFragment, fragment.Defer, fragment.Type));
}
requires.Clear();
return(MvcHtmlString.Create(result.ToString()));
}
