mcs/class/System.Web.Mvc/System.Web.Mvc/WebFormViewEngine.cs

   1 /* ****************************************************************************\r
   2  *\r
   3  * Copyright (c) Microsoft Corporation. All rights reserved.\r
   4  *\r
   5  * This software is subject to the Microsoft Public License (Ms-PL). \r
   6  * A copy of the license can be found in the license.htm file included \r
   7  * in this distribution.\r
   8  *\r
   9  * You must not remove this notice, or any other, from this software.\r
  10  *\r
  11  * ***************************************************************************/\r
  12 \r
  13 namespace System.Web.Mvc {\r
  14     using System.Diagnostics.CodeAnalysis;\r
  15     using System.Net;\r
  16     using System.Web;\r
  17 \r
  18     public class WebFormViewEngine : VirtualPathProviderViewEngine {\r
  19 \r
  20         private IBuildManager _buildManager;\r
  21 \r
  22         public WebFormViewEngine() {\r
  23             MasterLocationFormats = new[] {\r
  24                 "~/Views/{1}/{0}.master",\r
  25                 "~/Views/Shared/{0}.master"\r
  26             };\r
  27 \r
  28             ViewLocationFormats = new[] {\r
  29                 "~/Views/{1}/{0}.aspx",\r
  30                 "~/Views/{1}/{0}.ascx",\r
  31                 "~/Views/Shared/{0}.aspx",\r
  32                 "~/Views/Shared/{0}.ascx"\r
  33             };\r
  34 \r
  35             PartialViewLocationFormats = ViewLocationFormats;\r
  36         }\r
  37 \r
  38         internal IBuildManager BuildManager {\r
  39             get {\r
  40                 if (_buildManager == null) {\r
  41                     _buildManager = new BuildManagerWrapper();\r
  42                 }\r
  43                 return _buildManager;\r
  44             }\r
  45             set {\r
  46                 _buildManager = value;\r
  47             }\r
  48         }\r
  49 \r
  50         protected override IView CreatePartialView(ControllerContext controllerContext, string partialPath) {\r
  51             return new WebFormView(partialPath, null);\r
  52         }\r
  53 \r
  54         protected override IView CreateView(ControllerContext controllerContext, string viewPath, string masterPath) {\r
  55             return new WebFormView(viewPath, masterPath);\r
  56         }\r
  57 \r
  58         [SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes",\r
  59             Justification = "Exceptions are interpreted as indicating that the file does not exist.")]\r
  60         protected override bool FileExists(ControllerContext controllerContext, string virtualPath) {\r
  61             try {\r
  62                 object viewInstance = BuildManager.CreateInstanceFromVirtualPath(virtualPath, typeof(object));\r
  63 \r
  64                 return viewInstance != null;\r
  65             }\r
  66             catch (HttpException he) {\r
  67                 if (he.GetHttpCode() == (int)HttpStatusCode.NotFound) {\r
  68                     // If BuildManager returns a 404 (Not Found) that means the file did not exist\r
  69                     return false;\r
  70                 }\r
  71                 else {\r
  72                     // All other error codes imply other errors such as compilation or parsing errors\r
  73                     throw;\r
  74                 }\r
  75             }\r
  76             catch {\r
  77                 return false;\r
  78             }\r
  79         }\r
  80     }\r
  81 }\r