mcs/class/System.Web/System.Web.UI.HtmlControls/HtmlMeta.cs

   1 //
   2 // System.Web.UI.HtmlControls.HtmlHead
   3 //
   4 // Authors:
   5 //      Chris Toshok (toshok@ximian.com)
   6 //
   7 // Copyright (C) 2005-2010 Novell, Inc (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System.ComponentModel;
  30 using System.Collections;
  31 using System.Security.Permissions;
  32 using System.Web.UI.WebControls;
  33 using System.Web.Configuration;
  34
  35 namespace System.Web.UI.HtmlControls
  36 {
  37         [ControlBuilder (typeof (HtmlEmptyTagControlBuilder))]
  38         public class HtmlMeta: HtmlControl
  39         {
  40                 public HtmlMeta () : base ("meta")
  41                 {
  42                 }
  43
  44                 [DefaultValue ("")]
  45                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
  46                 public virtual string Content {
  47                         get {
  48                                 string s = Attributes["content"];
  49                                 if (s == null)
  50                                         return String.Empty;
  51                                 return s;
  52                         }
  53                         set {
  54                                 if (value == null)
  55                                         Attributes.Remove ("content");
  56                                 else
  57                                         Attributes["content"] = value;
  58                         }
  59                 }
  60
  61                 [DefaultValue ("")]
  62                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
  63                 public virtual string HttpEquiv {
  64                         get {
  65                                 string s = Attributes["http-equiv"];
  66                                 if (s == null)
  67                                         return String.Empty;
  68                                 return s;
  69                         }
  70                         set {
  71                                 if (value == null)
  72                                         Attributes.Remove ("http-equiv");
  73                                 else
  74                                         Attributes["http-equiv"] = value;
  75                         }
  76                 }
  77
  78                 [DefaultValue ("")]
  79                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
  80                 public virtual string Name {
  81                         get {
  82                                 string s = Attributes["name"];
  83                                 if (s == null)
  84                                         return String.Empty;
  85                                 return s;
  86                         }
  87                         set {
  88                                 if (value == null)
  89                                         Attributes.Remove ("name");
  90                                 else
  91                                         Attributes["name"] = value;
  92                         }
  93                 }
  94
  95                 [DefaultValue ("")]
  96                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
  97                 public virtual string Scheme {
  98                         get {
  99                                 string s = Attributes["scheme"];
 100                                 if (s == null)
 101                                         return String.Empty;
 102                                 return s;
 103                         }
 104                         set {
 105                                 if (value == null)
 106                                         Attributes.Remove ("scheme");
 107                                 else
 108                                         Attributes["scheme"] = value;
 109                         }
 110                 }
 111
 112                 protected internal override void Render (HtmlTextWriter writer)
 113                 {
 114                         XhtmlConformanceSection xhtml = WebConfigurationManager.GetSection ("system.web/xhtmlConformance") as XhtmlConformanceSection;
 115
 116                         if (xhtml != null && xhtml.Mode == XhtmlConformanceMode.Legacy)
 117                                 base.Render (writer);
 118                         else {
 119                                 writer.WriteBeginTag (TagName);
 120                                 RenderAttributes (writer);
 121                                 writer.Write ("/>");
 122                         }
 123                 }
 124         }
 125 }
 126