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 #if NET_2_0
  57                         htmlControls = new Hashtable (StringComparer.InvariantCultureIgnoreCase);
  58 #else
  59                         htmlControls = new Hashtable (CaseInsensitiveHashCodeProvider.DefaultInvariant,
  60                                                       CaseInsensitiveComparer.DefaultInvariant);
  61 #endif
  62
  63                         htmlControls.Add ("A", typeof (HtmlAnchor));
  64                         htmlControls.Add ("BUTTON", typeof (HtmlButton));
  65                         htmlControls.Add ("FORM", typeof (HtmlForm));
  66 #if NET_2_0
  67                         htmlControls.Add ("HEAD", typeof (HtmlHead));
  68 #endif
  69                         htmlControls.Add ("IMG", typeof (HtmlImage));
  70                         htmlControls.Add ("INPUT", "INPUT");
  71 #if NET_2_0
  72                         htmlControls.Add ("LINK", typeof (HtmlLink));
  73                         htmlControls.Add ("META", typeof (HtmlLink));
  74 #endif
  75                         htmlControls.Add ("SELECT", typeof (HtmlSelect));
  76                         htmlControls.Add ("TABLE", typeof (HtmlTable));
  77                         htmlControls.Add ("TD", typeof (HtmlTableCell));
  78                         htmlControls.Add ("TH", typeof (HtmlTableCell));
  79                         htmlControls.Add ("TR", typeof (HtmlTableRow));
  80                         htmlControls.Add ("TEXTAREA", typeof (HtmlTextArea));
  81
  82 #if NET_2_0
  83                         htmlInputControls = new Hashtable (StringComparer.InvariantCultureIgnoreCase);
  84 #else
  85                         htmlInputControls = new Hashtable (CaseInsensitiveHashCodeProvider.DefaultInvariant,
  86                                                            CaseInsensitiveComparer.DefaultInvariant);
  87 #endif
  88
  89                         htmlInputControls.Add ("BUTTON", typeof (HtmlInputButton));
  90 #if NET_2_0
  91                         htmlInputControls.Add ("SUBMIT", typeof (HtmlInputSubmit));
  92                         htmlInputControls.Add ("RESET", typeof (HtmlInputReset));
  93 #else
  94                         htmlInputControls.Add ("SUBMIT", typeof (HtmlInputButton));
  95                         htmlInputControls.Add ("RESET", typeof (HtmlInputButton));
  96 #endif
  97                         htmlInputControls.Add ("CHECKBOX", typeof (HtmlInputCheckBox));
  98                         htmlInputControls.Add ("FILE", typeof (HtmlInputFile));
  99                         htmlInputControls.Add ("HIDDEN", typeof (HtmlInputHidden));
 100                         htmlInputControls.Add ("IMAGE", typeof (HtmlInputImage));
 101                         htmlInputControls.Add ("RADIO", typeof (HtmlInputRadioButton));
 102                         htmlInputControls.Add ("TEXT", typeof (HtmlInputText));
 103 #if NET_2_0
 104                         htmlInputControls.Add ("PASSWORD", typeof (HtmlInputPassword));
 105 #else
 106                         htmlInputControls.Add ("PASSWORD", typeof (HtmlInputText));
 107 #endif
 108                 }
 109
 110                 public RootBuilder (TemplateParser parser)
 111                 {
 112                         foundry = new AspComponentFoundry ();
 113                         line = 1;
 114                         if (parser != null)
 115                                 fileName = parser.InputFile;
 116                         Init (parser, null, null, null, null, null);
 117                 }
 118
 119                 public override Type GetChildControlType (string tagName, IDictionary attribs)
 120                 {
 121                         if (tagName == null)
 122                                 throw new ArgumentNullException ("tagName");
 123
 124                         string prefix;
 125                         string cname;
 126                         int colon = tagName.IndexOf (':');
 127                         if (colon != -1) {
 128                                 if (colon == 0)
 129                                         throw new Exception ("Empty TagPrefix is not valid");
 130
 131                                 if (colon + 1 == tagName.Length)
 132                                         return null;
 133
 134                                 prefix = tagName.Substring (0, colon);
 135                                 cname = tagName.Substring (colon + 1);
 136                         } else {
 137                                 prefix = "";
 138                                 cname = tagName;
 139                         }
 140
 141                         Type t = foundry.GetComponentType (prefix, cname);
 142                         if (t != null)
 143                                 return t;
 144                         else if (prefix != "")
 145                                 throw new Exception ("Unknown server tag '" + tagName + "'");
 146
 147                         return LookupHtmlControls (tagName, attribs);
 148                 }
 149
 150                 static Type LookupHtmlControls (string tagName, IDictionary attribs)
 151                 {
 152                         object o = htmlControls [tagName];
 153                         if (o is string) {
 154                                 if (attribs == null)
 155                                         throw new HttpException ("Unable to map input type control to a Type.");
 156
 157                                 string ctype = attribs ["TYPE"] as string;
 158                                 if (ctype == null)
 159                                         ctype = "TEXT"; // The default used by MS
 160
 161                                 Type t = htmlInputControls [ctype] as Type;
 162                                 if (t == null)
 163                                         throw new HttpException ("Unable to map input type control to a Type.");
 164
 165                                 return t;
 166                         }
 167
 168                         if (o == null)
 169                                 o = typeof (HtmlGenericControl);
 170
 171                         return (Type) o;
 172                 }
 173
 174                 internal AspComponentFoundry Foundry {
 175                         get { return foundry; }
 176                 }
 177 #if NET_2_0
 178                 // FIXME: it's empty (but not null) when using the new default ctor
 179                 // but I'm not sure when something should gets in...
 180                 public IDictionary BuiltObjects {
 181                         get {
 182                                 if (built_objects == null)
 183                                         built_objects = new Hashtable ();
 184                                 return built_objects;
 185                         }
 186                 }
 187 #endif
 188         }
 189 }