C:/Private/OSS/n2cms/github/n2cms/src/Framework/Extensions/Web/Mvc/ViewPageResult.cs

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using System;
using System.Web.Mvc;
using System.Web.Routing;

namespace N2.Web.Mvc
{
        public class ViewPageResult : ActionResult
        {
                private readonly ContentItem _thePage;
                private readonly IControllerMapper _controllerMapper;
                private readonly IWebContext _webContext;
                private readonly IActionInvoker _actionInvoker;

                public ViewPageResult(ContentItem thePage, IControllerMapper controllerMapper, IWebContext webContext, IActionInvoker actionInvoker)
                {
                        _thePage = thePage;
                        _controllerMapper = controllerMapper;
                        _webContext = webContext;
                        _actionInvoker = actionInvoker;
                }

                public ContentItem Page
                {
                        get { return _thePage; }
                }

                public override void ExecuteResult(ControllerContext context)
                {
                        SetupN2ForNewPageRequest();

                        context = BuildPageControllerContext(context);

                        _actionInvoker.InvokeAction(context, "Index");
                }

                private void SetupN2ForNewPageRequest()
                {
                        _webContext.CurrentPage = _thePage;
                }

                private ControllerContext BuildPageControllerContext(ControllerContext context)
                {
                        string controllerName = _controllerMapper.GetControllerName(_thePage.GetContentType());
                        
                        var routeData = context.RouteData;
                        routeData.ApplyCurrentItem(controllerName, "Index", _thePage, null);
                        if (context.RouteData.DataTokens.ContainsKey(ContentRoute.ContentPartKey))
                        {
                                routeData.ApplyContentItem(ContentRoute.ContentPartKey, context.RouteData.DataTokens[ContentRoute.ContentPartKey] as ContentItem);
                        }

                        var requestContext = new RequestContext(context.HttpContext, routeData);

                        var controller = (ControllerBase)ControllerBuilder.Current.GetControllerFactory()
                                                                .CreateController(requestContext, controllerName);

                        controller.ControllerContext = new ControllerContext(requestContext, controller);
                        controller.ViewData.ModelState.Merge(context.Controller.ViewData.ModelState);

                        return controller.ControllerContext;
                }
        }
}