public void OnResultExecuting(ResultExecutingContext filterContext)
{
var viewResultBase = filterContext.Result as ViewResultBase;
if (viewResultBase == null) {
return;
}
//TODO: factor out into a service apart from the filter
//TODO: add layout engine first
var requestTheme = _themeService.GetRequestTheme(filterContext.RequestContext);
var themeViewEngines = Enumerable.Empty<IViewEngine>();
// todo: refactor. also this will probably result in the "SafeMode" theme being used so dump some debug info
// into the context for the theme to use for displaying why the expected theme isn't being used
if (requestTheme != null) {
var themeLocation = _extensionManager.GetThemeLocation(requestTheme);
themeViewEngines = _viewEngineProviders
.Select(x => x.CreateThemeViewEngine(new CreateThemeViewEngineParams { VirtualPath = themeLocation }));
Logger.Debug("Theme location:\r\n\t-{0}", themeLocation);
}
var modules = _extensionManager.AvailableExtensions()
.Where(x => x.ExtensionType == "Module");
var moduleLocations = modules.Select(x => Path.Combine(x.Location, x.Name));
var moduleViewEngines = _viewEngineProviders
.Select(x => x.CreateModulesViewEngine(new CreateModulesViewEngineParams { VirtualPaths = moduleLocations }));
Logger.Debug("Module locations:\r\n\t-{0}", string.Join("\r\n\t-", moduleLocations.ToArray()));
var requestViewEngines = new ViewEngineCollection(
themeViewEngines
.Concat(moduleViewEngines)
.Concat(_viewEngines.Where(x => x.GetType().Assembly != typeof(LayoutViewEngine).Assembly))
.ToArray());
var layoutViewEngine = new LayoutViewEngine(requestViewEngines);
viewResultBase.ViewEngineCollection = new ViewEngineCollection(_viewEngines.ToList());
viewResultBase.ViewEngineCollection.Insert(0, layoutViewEngine);
}
public LayoutView(LayoutViewEngine viewEngine, ViewEngineResult[] views)
{
_viewEngine = viewEngine;
_viewEngineResults = views;
}