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 ("LINK", typeof (HtmlLink));
  62                         htmlControls.Add ("META", typeof (HtmlLink));
  63                         htmlControls.Add ("SELECT", typeof (HtmlSelect));
  64                         htmlControls.Add ("TABLE", typeof (HtmlTable));
  65                         htmlControls.Add ("TD", typeof (HtmlTableCell));
  66                         htmlControls.Add ("TH", typeof (HtmlTableCell));
  67                         htmlControls.Add ("TR", typeof (HtmlTableRow));
  68                         htmlControls.Add ("TEXTAREA", typeof (HtmlTextArea));
  69
  70                         htmlInputControls = new Hashtable (StringComparer.InvariantCultureIgnoreCase);
  71
  72                         htmlInputControls.Add ("BUTTON", typeof (HtmlInputButton));
  73                         htmlInputControls.Add ("SUBMIT", typeof (HtmlInputSubmit));
  74                         htmlInputControls.Add ("RESET", typeof (HtmlInputReset));
  75                         htmlInputControls.Add ("CHECKBOX", typeof (HtmlInputCheckBox));
  76                         htmlInputControls.Add ("FILE", typeof (HtmlInputFile));
  77                         htmlInputControls.Add ("HIDDEN", typeof (HtmlInputHidden));
  78                         htmlInputControls.Add ("IMAGE", typeof (HtmlInputImage));
  79                         htmlInputControls.Add ("RADIO", typeof (HtmlInputRadioButton));
  80                         htmlInputControls.Add ("TEXT", typeof (HtmlInputText));
  81                         htmlInputControls.Add ("PASSWORD", typeof (HtmlInputPassword));
  82                 }
  83
  84                 public RootBuilder (TemplateParser parser)
  85                 {
  86                         foundry = new AspComponentFoundry ();
  87                         Line = 1;
  88                         if (parser != null)
  89                                 FileName = parser.InputFile;
  90                         Init (parser, null, null, null, null, null);
  91                 }
  92
  93                 public override Type GetChildControlType (string tagName, IDictionary attribs)
  94                 {
  95                         if (tagName == null)
  96                                 throw new ArgumentNullException ("tagName");
  97
  98                         AspComponent component = foundry.GetComponent (tagName);
  99
 100                         if (component != null) {
 101                                 if (!String.IsNullOrEmpty (component.Source)) {
 102                                         TemplateParser parser = Parser;
 103
 104                                         if (component.FromConfig) {
 105                                                 string parserDir = parser.BaseVirtualDir;
 106                                                 VirtualPath vp = new VirtualPath (component.Source);
 107
 108                                                 if (parserDir == vp.Directory)
 109                                                         throw new ParseException (parser.Location,
 110                                                                                   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));
 111
 112                                                 Parser.AddDependency (component.Source);
 113                                         }
 114                                 }
 115                                 return component.Type;
 116                         } else if (component != null && component.Prefix != String.Empty)
 117                                 throw new Exception ("Unknown server tag '" + tagName + "'");
 118
 119                         return LookupHtmlControls (tagName, attribs);
 120                 }
 121
 122                 static Type LookupHtmlControls (string tagName, IDictionary attribs)
 123                 {
 124                         object o = htmlControls [tagName];
 125                         if (o is string) {
 126                                 if (attribs == null)
 127                                         throw new HttpException ("Unable to map input type control to a Type.");
 128
 129                                 string ctype = attribs ["TYPE"] as string;
 130                                 if (ctype == null)
 131                                         ctype = "TEXT"; // The default used by MS
 132
 133                                 Type t = htmlInputControls [ctype] as Type;
 134                                 if (t == null)
 135                                         throw new HttpException ("Unable to map input type control to a Type.");
 136
 137                                 return t;
 138                         }
 139
 140                         if (o == null)
 141                                 o = typeof (HtmlGenericControl);
 142
 143                         return (Type) o;
 144                 }
 145
 146                 internal AspComponentFoundry Foundry {
 147                         get { return foundry; }
 148                         set {
 149                                 if (value is AspComponentFoundry)
 150                                         foundry = value;
 151                         }
 152                 }
 153
 154                 // FIXME: it's empty (but not null) when using the new default ctor
 155                 // but I'm not sure when something should gets in...
 156                 public IDictionary BuiltObjects {
 157                         get {
 158                                 if (built_objects == null)
 159                                         built_objects = new Hashtable ();
 160                                 return built_objects;
 161                         }
 162                 }
 163         }
 164 }