private static string AddLayoutToPage(ApplicationDbContext context, RenderedTemplate renderedTemplate, List <string> assemblies, Page page)
{
IncludeRazorEngine engine = new IncludeRazorEngine(assemblies);
RazorEngine razorEngine = new RazorEngine();
RazorEngineCompiledTemplate <LayoutTemplateBase> compiledLayout =
razorEngine.Compile <LayoutTemplateBase>(context.Layouts.Find(renderedTemplate.Layout).Contents,
engine.GetOptionsBuilder);
string renderCss = page.CssContents;
string renderJs = page.JsContents;
foreach (var component in renderedTemplate.ComponentDependencies.Distinct().Select(componentDependency =>
context.Components.Find(componentDependency)))
{
renderCss += "\n" + component.CssContents;
renderJs += "\n" + component.JsContents;
}
return(engine.RenderLayout(compiledLayout, new
{
RenderBody = renderedTemplate.HtmlContents,
RenderCss = renderCss,
// InnerJsContents already has a \n at the beginning of it
RenderJs = renderJs + renderedTemplate.InnerJsContents,
ViewData = renderedTemplate.ViewData
}));
}
private static string RenderPage(ApplicationDbContext context,
Dictionary <string, RazorEngineCompiledTemplate <IncludeTemplateBase> > compiledIncludes, List <string> assemblies, Page page)
{
IncludeRazorEngine engine = new IncludeRazorEngine(assemblies);
RazorEngine razorEngine = new RazorEngine();
RazorEngineCompiledTemplate <IncludeTemplateBase> compiledTemplate =
razorEngine.Compile <IncludeTemplateBase>(page.HtmlContents, engine.GetOptionsBuilder);
RenderedTemplate renderedTemplate = engine.Render(compiledTemplate, compiledIncludes, new { });
// Remove any inline script elements and store them separately
List <string> inlineScripts = new List <string>();
XmlDocument doc = new XmlDocument();
// Wrap the page in a PageContainer so that including text outside of any element doesn't throw an error
doc.AppendChild(doc.CreateElement("PageContainer"));
doc.GetElementsByTagName("PageContainer")[0].InnerXml = renderedTemplate.HtmlContents;
while (doc.GetElementsByTagName("script").Count > 0)
{
var node = doc.GetElementsByTagName("script")[0];
inlineScripts.Add(node.InnerText);
node.ParentNode.RemoveChild(node);
}
renderedTemplate.HtmlContents = doc.GetElementsByTagName("PageContainer")[0].InnerXml;
renderedTemplate.InnerJsContents =
inlineScripts.Aggregate(string.Empty, (current, script) => current + "\n" + script);
return(renderedTemplate.Layout is null ? renderedTemplate.HtmlContents : AddLayoutToPage(context, renderedTemplate, assemblies, page));
}
public RenderedTemplate Render(RazorEngineCompiledTemplate <IncludeTemplateBase> compiledTemplate,
IDictionary <string, RazorEngineCompiledTemplate <IncludeTemplateBase> > compiledIncludes, object model)
{
List <string> usedIncludes = new List <string>();
string templateLayout = string.Empty;
Dictionary <string, dynamic> templateViewData = new Dictionary <string, dynamic>();
string templateOutput = compiledTemplate.Run(instance =>
{
if (!(model is AnonymousTypeWrapper))
{
model = new AnonymousTypeWrapper(model);
}
instance.Model = model;
instance.IncludeCallback = (key, includeModel) =>
{
usedIncludes.Add(key);
RenderedTemplate renderedTemplate = Render(compiledIncludes[key], compiledIncludes, includeModel);
renderedTemplate.ViewData.ToList().ForEach(item => { templateViewData[item.Key] = item.Value; });
return(renderedTemplate.HtmlContents);
};
instance.LayoutCallback = key =>
{
templateLayout = key;
};
instance.ViewData.Callback = newViewData =>
{
templateViewData = newViewData;
};
});
return(new RenderedTemplate
{
HtmlContents = templateOutput,
ComponentDependencies = usedIncludes,
Layout = templateLayout,
ViewData = templateViewData
});
}
