mcs/class/System.Web.Mvc2/System.Web.Mvc/WebFormView.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;\r
  15     using System.Globalization;\r
  16     using System.IO;\r
  17     using System.Web.Mvc.Resources;\r
  18 \r
  19     public class WebFormView : IView {\r
  20 \r
  21         private IBuildManager _buildManager;\r
  22 \r
  23         public WebFormView(string viewPath)\r
  24             : this(viewPath, null) {\r
  25         }\r
  26 \r
  27         public WebFormView(string viewPath, string masterPath) {\r
  28             if (String.IsNullOrEmpty(viewPath)) {\r
  29                 throw new ArgumentException(MvcResources.Common_NullOrEmpty, "viewPath");\r
  30             }\r
  31 \r
  32             ViewPath = viewPath;\r
  33             MasterPath = masterPath ?? String.Empty;\r
  34         }\r
  35 \r
  36         internal IBuildManager BuildManager {\r
  37             get {\r
  38                 if (_buildManager == null) {\r
  39                     _buildManager = new BuildManagerWrapper();\r
  40                 }\r
  41                 return _buildManager;\r
  42             }\r
  43             set {\r
  44                 _buildManager = value;\r
  45             }\r
  46         }\r
  47 \r
  48         public string MasterPath {\r
  49             get;\r
  50             private set;\r
  51         }\r
  52 \r
  53         public string ViewPath {\r
  54             get;\r
  55             private set;\r
  56         }\r
  57 \r
  58         public virtual void Render(ViewContext viewContext, TextWriter writer) {\r
  59             if (viewContext == null) {\r
  60                 throw new ArgumentNullException("viewContext");\r
  61             }\r
  62 \r
  63             object viewInstance = BuildManager.CreateInstanceFromVirtualPath(ViewPath, typeof(object));\r
  64             if (viewInstance == null) {\r
  65                 throw new InvalidOperationException(\r
  66                     String.Format(\r
  67                         CultureInfo.CurrentUICulture,\r
  68                         MvcResources.WebFormViewEngine_ViewCouldNotBeCreated,\r
  69                         ViewPath));\r
  70             }\r
  71 \r
  72             ViewPage viewPage = viewInstance as ViewPage;\r
  73             if (viewPage != null) {\r
  74                 RenderViewPage(viewContext, viewPage);\r
  75                 return;\r
  76             }\r
  77 \r
  78             ViewUserControl viewUserControl = viewInstance as ViewUserControl;\r
  79             if (viewUserControl != null) {\r
  80                 RenderViewUserControl(viewContext, viewUserControl);\r
  81                 return;\r
  82             }\r
  83 \r
  84             throw new InvalidOperationException(\r
  85                 String.Format(\r
  86                     CultureInfo.CurrentUICulture,\r
  87                     MvcResources.WebFormViewEngine_WrongViewBase,\r
  88                     ViewPath));\r
  89         }\r
  90 \r
  91         private void RenderViewPage(ViewContext context, ViewPage page) {\r
  92             if (!String.IsNullOrEmpty(MasterPath)) {\r
  93                 page.MasterLocation = MasterPath;\r
  94             }\r
  95 \r
  96             page.ViewData = context.ViewData;\r
  97             page.RenderView(context);\r
  98         }\r
  99 \r
 100         private void RenderViewUserControl(ViewContext context, ViewUserControl control) {\r
 101             if (!String.IsNullOrEmpty(MasterPath)) {\r
 102                 throw new InvalidOperationException(MvcResources.WebFormViewEngine_UserControlCannotHaveMaster);\r
 103             }\r
 104 \r
 105             control.ViewData = context.ViewData;\r
 106             control.RenderView(context);\r
 107         }\r
 108     }\r
 109 }\r