private string RenderMacro(MacroBlockTag macroBlockTag, IEnumerable <Option <ILiquidValue> > args)
{
var macroRenderer = new MacroRenderer();
var expressionConstant = (ILiquidValue)macroRenderer.Render(this, macroBlockTag, _templateContext, args.ToList());
return(ValueCaster.RenderAsString(expressionConstant));
}
/// <summary>
/// Renders the macro with the specified alias, passing in the specified parameters.
/// </summary>
/// <param name="m">The macro.</param>
/// <param name="parameters">The parameters.</param>
/// <param name="umbracoPage">The legacy umbraco page object that is required for some macros</param>
/// <returns></returns>
internal IHtmlString RenderMacro(MacroModel m, IDictionary <string, object> parameters, page umbracoPage)
{
if (umbracoPage == null)
{
throw new ArgumentNullException(nameof(umbracoPage));
}
if (m == null)
{
throw new ArgumentNullException(nameof(m));
}
if (_umbracoContext.PageId == null)
{
throw new InvalidOperationException("Cannot render a macro when UmbracoContext.PageId is null.");
}
var macroProps = new Hashtable();
foreach (var i in parameters)
{
//TODO: We are doing at ToLower here because for some insane reason the UpdateMacroModel method of macro.cs
// looks for a lower case match. WTF. the whole macro concept needs to be rewritten.
//NOTE: the value could have html encoded values, so we need to deal with that
macroProps.Add(i.Key.ToLowerInvariant(), (i.Value is string) ? HttpUtility.HtmlDecode(i.Value.ToString()) : i.Value);
}
var renderer = new MacroRenderer(Current.ProfilingLogger);
var macroControl = renderer.Render(m, umbracoPage.Elements, _umbracoContext.PageId.Value, macroProps).GetAsControl();
string html;
if (macroControl is LiteralControl)
{
// no need to execute, we already have text
html = (macroControl as LiteralControl).Text;
}
else
{
var containerPage = new FormlessPage();
containerPage.Controls.Add(macroControl);
using (var output = new StringWriter())
{
// .Execute() does a PushTraceContext/PopTraceContext and writes trace output straight into 'output'
// and I do not see how we could wire the trace context to the current context... so it creates dirty
// trace output right in the middle of the page.
//
// The only thing we can do is fully disable trace output while .Execute() runs and restore afterwards
// which means trace output is lost if the macro is a control (.ascx or user control) that is invoked
// from within Razor -- which makes sense anyway because the control can _not_ run correctly from
// within Razor since it will never be inserted into the page pipeline (which may even not exist at all
// if we're running MVC).
//
// I'm sure there's more things that will get lost with this context changing but I guess we'll figure
// those out as we go along. One thing we lose is the content type response output.
// http://issues.umbraco.org/issue/U4-1599 if it is setup during the macro execution. So
// here we'll save the content type response and reset it after execute is called.
var contentType = _umbracoContext.HttpContext.Response.ContentType;
var traceIsEnabled = containerPage.Trace.IsEnabled;
containerPage.Trace.IsEnabled = false;
_umbracoContext.HttpContext.Server.Execute(containerPage, output, true);
containerPage.Trace.IsEnabled = traceIsEnabled;
//reset the content type
_umbracoContext.HttpContext.Response.ContentType = contentType;
//Now, we need to ensure that local links are parsed
html = TemplateUtilities.ParseInternalLinks(output.ToString(), _umbracoContext.UrlProvider);
}
}
return(new HtmlString(html));
}
/// <summary>
/// Called by the ASP.NET page framework to notify server controls that use composition-based implementation to create any child controls they contain in preparation for posting back or rendering.
/// </summary>
protected override void CreateChildControls()
{
// collect all attributes set on the control
var keys = Attributes.Keys;
foreach (string key in keys)
{
MacroAttributes.Add(key.ToLower(), HttpUtility.HtmlDecode(Attributes[key]));
}
if (MacroAttributes.ContainsKey("macroalias") == false && MacroAttributes.ContainsKey("macroAlias") == false)
{
MacroAttributes.Add("macroalias", Alias);
}
// set pageId to int.MinValue if no pageID was found,
// e.g. if the macro was rendered on a custom (non-Umbraco) page
var pageId = UmbracoContext.Current.PageId == null ? int.MinValue : UmbracoContext.Current.PageId.Value;
if ((string.IsNullOrEmpty(Language) == false && Text != "") || string.IsNullOrEmpty(FileLocation) == false)
{
var tempMacro = new MacroModel();
MacroRenderer.GenerateMacroModelPropertiesFromAttributes(tempMacro, MacroAttributes);
// executing an inline macro?
// ie the code of the macro is in the control's text body
// ok, this is not supported in v8 anymore
if (string.IsNullOrEmpty(FileLocation))
{
throw new NotSupportedException("Inline macros are not supported anymore.");
}
// executing an on-disk macro
// it has to be a partial (cshtml or vbhtml) macro in v8
var extension = System.IO.Path.GetExtension(FileLocation);
if (extension.InvariantEndsWith(".cshtml") == false && extension.InvariantEndsWith(".vbhtml") == false)
{
throw new NotSupportedException("");
}
tempMacro.MacroSource = FileLocation;
tempMacro.MacroType = MacroTypes.PartialView;
if (string.IsNullOrEmpty(Attributes["Cache"]) == false)
{
int cacheDuration;
if (int.TryParse(Attributes["Cache"], out cacheDuration))
{
tempMacro.CacheDuration = cacheDuration;
}
else
{
Context.Trace.Warn("Template", "Cache attribute is in incorect format (should be an integer).");
}
}
var renderer = new MacroRenderer(Current.ProfilingLogger);
var c = renderer.Render(tempMacro, (Hashtable)Context.Items["pageElements"], pageId).GetAsControl();
if (c != null)
{
Exceptions = renderer.Exceptions;
Controls.Add(c);
}
else
{
Context.Trace.Warn("Template", "Result of inline macro scripting is null");
}
}
else
{
var m = Current.Services.MacroService.GetByAlias(Alias);
if (m == null)
{
return;
}
var tempMacro = new MacroModel(m);
try
{
var renderer = new MacroRenderer(Current.ProfilingLogger);
var c = renderer.Render(tempMacro, (Hashtable)Context.Items["pageElements"], pageId, MacroAttributes).GetAsControl();
if (c != null)
{
Controls.Add(c);
}
else
{
Context.Trace.Warn("Template", "Result of macro " + tempMacro.Name + " is null");
}
}
catch (Exception ee)
{
Context.Trace.Warn("Template", "Error adding macro " + tempMacro.Name, ee);
throw;
}
}
}
