mcs/class/System.Web/System.Web.UI/RootBuilder.cs

   1 //
   2 // System.Web.UI.RootBuilder
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //
   7 // (C) 2003 Ximian, Inc. (http://www.ximian.com)
   8 // Copyright (C) 2005-2010 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System.Collections;
  31 using System.Security.Permissions;
  32 using System.Web.Compilation;
  33 using System.Web.UI.HtmlControls;
  34
  35 namespace System.Web.UI
  36 {
  37         [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  38         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  39         public class RootBuilder : TemplateBuilder
  40         {
  41                 Hashtable built_objects;
  42                 static Hashtable htmlControls;
  43                 static Hashtable htmlInputControls;
  44                 AspComponentFoundry foundry;
  45
  46                 public RootBuilder ()
  47                 {
  48                         foundry = new AspComponentFoundry ();
  49                         Line = 1;
  50                 }
  51
  52                 static RootBuilder ()
  53                 {
  54                         htmlControls = new Hashtable (StringComparer.InvariantCultureIgnoreCase);
  55                         htmlControls.Add ("A", typeof (HtmlAnchor));
  56                         htmlControls.Add ("BUTTON", typeof (HtmlButton));
  57                         htmlControls.Add ("FORM", typeof (HtmlForm));
  58                         htmlControls.Add ("HEAD", typeof (HtmlHead));
  59                         htmlControls.Add ("IMG", typeof (HtmlImage));
  60                         htmlControls.Add ("INPUT", "INPUT");
  61                         htmlControls.Add ("SELECT", typeof (HtmlSelect));
  62                         htmlControls.Add ("TABLE", typeof (HtmlTable));
  63                         htmlControls.Add ("TD", typeof (HtmlTableCell));
  64                         htmlControls.Add ("TH", typeof (HtmlTableCell));
  65                         htmlControls.Add ("TR", typeof (HtmlTableRow));
  66                         htmlControls.Add ("TEXTAREA", typeof (HtmlTextArea));
  67
  68                         htmlInputControls = new Hashtable (StringComparer.InvariantCultureIgnoreCase);
  69
  70                         htmlInputControls.Add ("BUTTON", typeof (HtmlInputButton));
  71                         htmlInputControls.Add ("SUBMIT", typeof (HtmlInputSubmit));
  72                         htmlInputControls.Add ("RESET", typeof (HtmlInputReset));
  73                         htmlInputControls.Add ("CHECKBOX", typeof (HtmlInputCheckBox));
  74                         htmlInputControls.Add ("FILE", typeof (HtmlInputFile));
  75                         htmlInputControls.Add ("HIDDEN", typeof (HtmlInputHidden));
  76                         htmlInputControls.Add ("IMAGE", typeof (HtmlInputImage));
  77                         htmlInputControls.Add ("RADIO", typeof (HtmlInputRadioButton));
  78                         htmlInputControls.Add ("TEXT", typeof (HtmlInputText));
  79                         htmlInputControls.Add ("PASSWORD", typeof (HtmlInputPassword));
  80                 }
  81
  82                 public RootBuilder (TemplateParser parser)
  83                 {
  84                         foundry = new AspComponentFoundry ();
  85                         Line = 1;
  86                         if (parser != null)
  87                                 FileName = parser.InputFile;
  88                         Init (parser, null, null, null, null, null);
  89                 }
  90
  91                 public override Type GetChildControlType (string tagName, IDictionary attribs)
  92                 {
  93                         if (tagName == null)
  94                                 throw new ArgumentNullException ("tagName");
  95
  96                         AspComponent component = foundry.GetComponent (tagName);
  97
  98                         if (component != null) {
  99                                 if (!String.IsNullOrEmpty (component.Source)) {
 100                                         TemplateParser parser = Parser;
 101
 102                                         if (component.FromConfig) {
 103                                                 string parserDir = parser.BaseVirtualDir;
 104                                                 VirtualPath vp = new VirtualPath (component.Source);
 105
 106                                                 if (parserDir == vp.Directory)
 107                                                         throw new ParseException (parser.Location,
 108                                                                                   String.Format ("The page '{0}' cannot use the user control '{1}', because it is registered in web.config and lives in the same directory as the page.", parser.VirtualPath, vp.Absolute));
 109
 110                                                 Parser.AddDependency (component.Source);
 111                                         }
 112                                 }
 113                                 return component.Type;
 114                         } else if (component != null && component.Prefix != String.Empty)
 115                                 throw new Exception ("Unknown server tag '" + tagName + "'");
 116
 117                         return LookupHtmlControls (tagName, attribs);
 118                 }
 119
 120                 static Type LookupHtmlControls (string tagName, IDictionary attribs)
 121                 {
 122                         object o = htmlControls [tagName];
 123                         if (o is string) {
 124                                 if (attribs == null)
 125                                         throw new HttpException ("Unable to map input type control to a Type.");
 126
 127                                 string ctype = attribs ["TYPE"] as string;
 128                                 if (ctype == null)
 129                                         ctype = "TEXT"; // The default used by MS
 130
 131                                 Type t = htmlInputControls [ctype] as Type;
 132                                 if (t == null)
 133                                         throw new HttpException ("Unable to map input type control to a Type.");
 134
 135                                 return t;
 136                         }
 137
 138                         if (o == null)
 139                                 o = typeof (HtmlGenericControl);
 140
 141                         return (Type) o;
 142                 }
 143
 144                 internal AspComponentFoundry Foundry {
 145                         get { return foundry; }
 146                         set {
 147                                 if (value is AspComponentFoundry)
 148                                         foundry = value;
 149                         }
 150                 }
 151
 152                 // FIXME: it's empty (but not null) when using the new default ctor
 153                 // but I'm not sure when something should gets in...
 154                 public IDictionary BuiltObjects {
 155                         get {
 156                                 if (built_objects == null)
 157                                         built_objects = new Hashtable ();
 158                                 return built_objects;
 159                         }
 160                 }
 161         }
 162 }