EverestWebFormViewEngine.cs :  » Content-Management-Systems-CMS » Kooboo » Everest » Library » Mvc » View » C# / CSharp Open Source

/*
Kooboo is a content management system based on ASP.NET MVC framework. Copyright 2009 Yardi Technology Limited.

This program is free software: you can redistribute it and/or modify it under the terms of the
GNU General Public License version 3 as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program.
If not, see http://www.kooboo.com/gpl3/.
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.Mvc;
using System.Globalization;

namespace Everest.Library.Mvc.View{
    public class EverestWebFormViewEngine : System.Web.Mvc.WebFormViewEngine
    {
        public EverestWebFormViewEngine()
        {
            base.ViewLocationFormats = new string[] {
                "{2}Views/{1}/{0}.aspx",
                "{2}Views/{1}/{0}.ascx",
                "{2}Views/Shared/{0}.aspx",
                "{2}Views/Shared/{0}.ascx"
            };

            base.MasterLocationFormats = new string[] {
                "{2}Views/{1}/{0}.master",
                "{2}Views/Shared/{0}.master"
            };

            base.PartialViewLocationFormats = new string[] {
                "{2}Views/{1}/{0}.aspx",
                "{2}Views/{1}/{0}.ascx",
                "{2}Views/Shared/{0}.aspx",
                "{2}Views/Shared/{0}.ascx"
            };
        }
        public override ViewEngineResult FindView(ControllerContext controllerContext, string viewName, string masterName, bool useCache)
        {
            if (controllerContext == null)
            {
                throw new ArgumentNullException("controllerContext");
            }
            if (string.IsNullOrEmpty(viewName))
            {
                throw new ArgumentException("Value is required.", "viewName");
            }


            string[] searchedViewLocations;
            string[] searchedMasterLocations;

            string controllerName = controllerContext.RouteData.GetRequiredString("controller");

            string viewPath = this.GetPath(controllerContext,this.ViewLocationFormats, viewName, controllerName, out searchedViewLocations);
            string masterPath = this.GetPath(controllerContext,this.MasterLocationFormats, viewName, controllerName, out searchedMasterLocations);

            if (!(string.IsNullOrEmpty(viewPath)) && (!(masterPath == string.Empty) || string.IsNullOrEmpty(masterName)))
            {
                return new ViewEngineResult(this.CreateView(controllerContext, viewPath, masterPath), this);
            }
            return new ViewEngineResult(searchedViewLocations.Union<string>(searchedMasterLocations));
        }

        public override ViewEngineResult FindPartialView(ControllerContext controllerContext, string partialViewName, bool useCache)
        {
            if (controllerContext == null)
            {
                throw new ArgumentNullException("controllerContext");
            }
            if (string.IsNullOrEmpty(partialViewName))
            {
                throw new ArgumentException("Value is required.", partialViewName);
            }


            string[] searchedLocations;

            string controllerName = controllerContext.RouteData.GetRequiredString("controller");

            string partialPath = this.GetPath(controllerContext, this.PartialViewLocationFormats, partialViewName, controllerName, out searchedLocations);

            if (string.IsNullOrEmpty(partialPath))
            {
                return new ViewEngineResult(searchedLocations);
            }
            return new ViewEngineResult(this.CreatePartialView(controllerContext, partialPath), this);
        }

        protected virtual string GetPath(ControllerContext controllerContext, string[] locations, string viewName, string controllerName, out string[] searchedLocations)
        {
            string path = null;

            searchedLocations = new string[locations.Length];

            EverestContext everestContext = EverestContext.GetContext();
            string rootUrl = everestContext.BaseUrl;

            for (int i = 0; i < locations.Length; i++)
            {
                path = string.Format(CultureInfo.InvariantCulture, locations[i], new object[] { viewName, controllerName, rootUrl });
                if (this.VirtualPathProvider.FileExists(path))
                {
                    searchedLocations = new string[0];
                    return path;
                }
                searchedLocations[i] = path;
            }
            return null;
        }
    }
}