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 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 #if NET_2_0
  39         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  40         public class RootBuilder : TemplateBuilder {
  41
  42                 private Hashtable built_objects;
  43
  44                 public RootBuilder ()
  45                 {
  46                 }
  47 #else
  48         public sealed class RootBuilder : TemplateBuilder {
  49 #endif
  50                 static Hashtable htmlControls;
  51                 static Hashtable htmlInputControls;
  52                 AspComponentFoundry foundry;
  53
  54                 static RootBuilder ()
  55                 {
  56                         htmlControls = new Hashtable (CaseInsensitiveHashCodeProvider.DefaultInvariant,
  57                                                       CaseInsensitiveComparer.DefaultInvariant);
  58
  59                         htmlControls.Add ("A", typeof (HtmlAnchor));
  60                         htmlControls.Add ("BUTTON", typeof (HtmlButton));
  61                         htmlControls.Add ("FORM", typeof (HtmlForm));
  62 #if NET_2_0
  63                         htmlControls.Add ("HEAD", typeof (HtmlHead));
  64 #endif
  65                         htmlControls.Add ("IMG", typeof (HtmlImage));
  66                         htmlControls.Add ("INPUT", "INPUT");
  67 #if NET_2_0
  68                         htmlControls.Add ("LINK", typeof (HtmlLink));
  69                         htmlControls.Add ("META", typeof (HtmlLink));
  70 #endif
  71                         htmlControls.Add ("SELECT", typeof (HtmlSelect));
  72                         htmlControls.Add ("TABLE", typeof (HtmlTable));
  73                         htmlControls.Add ("TD", typeof (HtmlTableCell));
  74                         htmlControls.Add ("TH", typeof (HtmlTableCell));
  75                         htmlControls.Add ("TR", typeof (HtmlTableRow));
  76                         htmlControls.Add ("TEXTAREA", typeof (HtmlTextArea));
  77
  78                         htmlInputControls = new Hashtable (CaseInsensitiveHashCodeProvider.DefaultInvariant,
  79                                                       CaseInsensitiveComparer.DefaultInvariant);
  80
  81                         htmlInputControls.Add ("BUTTON", typeof (HtmlInputButton));
  82 #if NET_2_0
  83                         htmlInputControls.Add ("SUBMIT", typeof (HtmlInputSubmit));
  84                         htmlInputControls.Add ("RESET", typeof (HtmlInputReset));
  85 #else
  86                         htmlInputControls.Add ("SUBMIT", typeof (HtmlInputButton));
  87                         htmlInputControls.Add ("RESET", typeof (HtmlInputButton));
  88 #endif
  89                         htmlInputControls.Add ("CHECKBOX", typeof (HtmlInputCheckBox));
  90                         htmlInputControls.Add ("FILE", typeof (HtmlInputFile));
  91                         htmlInputControls.Add ("HIDDEN", typeof (HtmlInputHidden));
  92                         htmlInputControls.Add ("IMAGE", typeof (HtmlInputImage));
  93                         htmlInputControls.Add ("RADIO", typeof (HtmlInputRadioButton));
  94                         htmlInputControls.Add ("TEXT", typeof (HtmlInputText));
  95 #if NET_2_0
  96                         htmlInputControls.Add ("PASSWORD", typeof (HtmlInputPassword));
  97 #else
  98                         htmlInputControls.Add ("PASSWORD", typeof (HtmlInputText));
  99 #endif
 100                 }
 101
 102                 public RootBuilder (TemplateParser parser)
 103                 {
 104                         foundry = new AspComponentFoundry ();
 105                         line = 1;
 106                         if (parser != null)
 107                                 fileName = parser.InputFile;
 108                         Init (parser, null, null, null, null, null);
 109                 }
 110
 111                 public override Type GetChildControlType (string tagName, IDictionary attribs)
 112                 {
 113                         if (tagName == null)
 114                                 throw new ArgumentNullException ("tagName");
 115
 116                         string prefix;
 117                         string cname;
 118                         int colon = tagName.IndexOf (':');
 119                         if (colon != -1) {
 120                                 if (colon == 0)
 121                                         throw new Exception ("Empty TagPrefix is not valid");
 122
 123                                 if (colon + 1 == tagName.Length)
 124                                         return null;
 125
 126                                 prefix = tagName.Substring (0, colon);
 127                                 cname = tagName.Substring (colon + 1);
 128                         } else {
 129                                 prefix = "";
 130                                 cname = tagName;
 131                         }
 132
 133                         Type t = foundry.GetComponentType (prefix, cname);
 134                         if (t != null)
 135                                 return t;
 136                         else if (prefix != "")
 137                                 throw new Exception ("TagPrefix " + prefix + " not registered");
 138
 139                         return LookupHtmlControls (tagName, attribs);
 140                 }
 141
 142                 static Type LookupHtmlControls (string tagName, IDictionary attribs)
 143                 {
 144                         object o = htmlControls [tagName];
 145                         if (o is string) {
 146                                 if (attribs == null)
 147                                         throw new HttpException ("Unable to map input type control to a Type.");
 148
 149                                 string ctype = attribs ["TYPE"] as string;
 150                                 if (ctype == null)
 151                                         ctype = "TEXT"; // The default used by MS
 152
 153                                 Type t = htmlInputControls [ctype] as Type;
 154                                 if (t == null)
 155                                         throw new HttpException ("Unable to map input type control to a Type.");
 156
 157                                 return t;
 158                         }
 159
 160                         if (o == null)
 161                                 o = typeof (HtmlGenericControl);
 162
 163                         return (Type) o;
 164                 }
 165
 166                 internal AspComponentFoundry Foundry {
 167                         get { return foundry; }
 168                 }
 169 #if NET_2_0
 170                 // FIXME: it's empty (but not null) when using the new default ctor
 171                 // but I'm not sure when something should gets in...
 172                 public IDictionary BuiltObjects {
 173                         get {
 174                                 if (built_objects == null)
 175                                         built_objects = new Hashtable ();
 176                                 return built_objects;
 177                         }
 178                 }
 179 #endif
 180         }
 181 }